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 87 #include <cam/cam.h> 88 #include <cam/cam_ccb.h> 89 #include <cam/cam_periph.h> 90 #include <cam/cam_sim.h> 91 #include <cam/cam_xpt_sim.h> 92 #include <cam/scsi/scsi_all.h> 93 #include <cam/scsi/scsi_message.h> 94 95 #include <machine/clock.h> 96 #include <machine/bus_memio.h> 97 #include <machine/bus.h> 98 #include <machine/endian.h> 99 #include <machine/resource.h> 100 #include <sys/rman.h> 101 102 #include <dev/pci/pcireg.h> 103 #include <dev/pci/pcivar.h> 104 105 #include <dev/ciss/cissreg.h> 106 #include <dev/ciss/cissvar.h> 107 #include <dev/ciss/cissio.h> 108 109 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_wait_adapter(struct ciss_softc *sc); 121 static int ciss_flush_adapter(struct ciss_softc *sc); 122 static int ciss_init_requests(struct ciss_softc *sc); 123 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 124 int nseg, int error); 125 static int ciss_identify_adapter(struct ciss_softc *sc); 126 static int ciss_init_logical(struct ciss_softc *sc); 127 static int ciss_init_physical(struct ciss_softc *sc); 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 int async); 133 static void ciss_accept_media_complete(struct ciss_request *cr); 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_notify_event(struct ciss_softc *sc); 187 static void ciss_notify_complete(struct ciss_request *cr); 188 static int ciss_notify_abort(struct ciss_softc *sc); 189 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 190 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 191 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 192 193 /* debugging output */ 194 static void ciss_print_request(struct ciss_request *cr); 195 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 196 static const char *ciss_name_ldrive_status(int status); 197 static int ciss_decode_ldrive_status(int status); 198 static const char *ciss_name_ldrive_org(int org); 199 static const char *ciss_name_command_status(int status); 200 201 /* 202 * PCI bus interface. 203 */ 204 static device_method_t ciss_methods[] = { 205 /* Device interface */ 206 DEVMETHOD(device_probe, ciss_probe), 207 DEVMETHOD(device_attach, ciss_attach), 208 DEVMETHOD(device_detach, ciss_detach), 209 DEVMETHOD(device_shutdown, ciss_shutdown), 210 { 0, 0 } 211 }; 212 213 static driver_t ciss_pci_driver = { 214 "ciss", 215 ciss_methods, 216 sizeof(struct ciss_softc) 217 }; 218 219 static devclass_t ciss_devclass; 220 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 221 222 /* 223 * Control device interface. 224 */ 225 static d_open_t ciss_open; 226 static d_close_t ciss_close; 227 static d_ioctl_t ciss_ioctl; 228 229 static struct cdevsw ciss_cdevsw = { 230 .d_version = D_VERSION, 231 .d_flags = D_NEEDGIANT, 232 .d_open = ciss_open, 233 .d_close = ciss_close, 234 .d_ioctl = ciss_ioctl, 235 .d_name = "ciss", 236 }; 237 238 /************************************************************************ 239 * CISS adapters amazingly don't have a defined programming interface 240 * value. (One could say some very despairing things about PCI and 241 * people just not getting the general idea.) So we are forced to 242 * stick with matching against subvendor/subdevice, and thus have to 243 * be updated for every new CISS adapter that appears. 244 */ 245 #define CISS_BOARD_SA5 (1<<0) 246 #define CISS_BOARD_SA5B (1<<1) 247 248 static struct 249 { 250 u_int16_t subvendor; 251 u_int16_t subdevice; 252 int flags; 253 char *desc; 254 } ciss_vendor_data[] = { 255 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 256 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 257 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 258 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 259 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 260 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 261 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 262 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 263 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 264 { 0, 0, 0, NULL } 265 }; 266 267 /************************************************************************ 268 * Find a match for the device in our list of known adapters. 269 */ 270 static int 271 ciss_lookup(device_t dev) 272 { 273 int i; 274 275 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 276 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 277 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 278 return(i); 279 } 280 return(-1); 281 } 282 283 /************************************************************************ 284 * Match a known CISS adapter. 285 */ 286 static int 287 ciss_probe(device_t dev) 288 { 289 int i; 290 291 i = ciss_lookup(dev); 292 if (i != -1) { 293 device_set_desc(dev, ciss_vendor_data[i].desc); 294 return(-10); 295 } 296 return(ENOENT); 297 } 298 299 /************************************************************************ 300 * Attach the driver to this adapter. 301 */ 302 static int 303 ciss_attach(device_t dev) 304 { 305 struct ciss_softc *sc; 306 int i, error; 307 308 debug_called(1); 309 310 #ifdef CISS_DEBUG 311 /* print structure/union sizes */ 312 debug_struct(ciss_command); 313 debug_struct(ciss_header); 314 debug_union(ciss_device_address); 315 debug_struct(ciss_cdb); 316 debug_struct(ciss_report_cdb); 317 debug_struct(ciss_notify_cdb); 318 debug_struct(ciss_notify); 319 debug_struct(ciss_message_cdb); 320 debug_struct(ciss_error_info_pointer); 321 debug_struct(ciss_error_info); 322 debug_struct(ciss_sg_entry); 323 debug_struct(ciss_config_table); 324 debug_struct(ciss_bmic_cdb); 325 debug_struct(ciss_bmic_id_ldrive); 326 debug_struct(ciss_bmic_id_lstatus); 327 debug_struct(ciss_bmic_id_table); 328 debug_struct(ciss_bmic_id_pdrive); 329 debug_struct(ciss_bmic_blink_pdrive); 330 debug_struct(ciss_bmic_flush_cache); 331 debug_const(CISS_MAX_REQUESTS); 332 debug_const(CISS_MAX_LOGICAL); 333 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 334 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 335 debug_const(CISS_COMMAND_ALLOC_SIZE); 336 debug_const(CISS_COMMAND_SG_LENGTH); 337 338 debug_type(cciss_pci_info_struct); 339 debug_type(cciss_coalint_struct); 340 debug_type(cciss_coalint_struct); 341 debug_type(NodeName_type); 342 debug_type(NodeName_type); 343 debug_type(Heartbeat_type); 344 debug_type(BusTypes_type); 345 debug_type(FirmwareVer_type); 346 debug_type(DriverVer_type); 347 debug_type(IOCTL_Command_struct); 348 #endif 349 350 sc = device_get_softc(dev); 351 sc->ciss_dev = dev; 352 353 /* 354 * Work out adapter type. 355 */ 356 i = ciss_lookup(dev); 357 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 358 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 359 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 360 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 361 } else { 362 /* really an error on our part */ 363 ciss_printf(sc, "unable to determine hardware type\n"); 364 error = ENXIO; 365 goto out; 366 } 367 368 /* 369 * Do PCI-specific init. 370 */ 371 if ((error = ciss_init_pci(sc)) != 0) 372 goto out; 373 374 /* 375 * Initialise driver queues. 376 */ 377 ciss_initq_free(sc); 378 ciss_initq_busy(sc); 379 ciss_initq_complete(sc); 380 ciss_initq_notify(sc); 381 382 /* 383 * Initialise command/request pool. 384 */ 385 if ((error = ciss_init_requests(sc)) != 0) 386 goto out; 387 388 /* 389 * Get adapter information. 390 */ 391 if ((error = ciss_identify_adapter(sc)) != 0) 392 goto out; 393 394 /* 395 * Find all the physical devices. 396 */ 397 if ((error = ciss_init_physical(sc)) != 0) 398 goto out; 399 400 /* 401 * Build our private table of logical devices. 402 */ 403 if ((error = ciss_init_logical(sc)) != 0) 404 goto out; 405 406 /* 407 * Enable interrupts so that the CAM scan can complete. 408 */ 409 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 410 411 /* 412 * Initialise the CAM interface. 413 */ 414 if ((error = ciss_cam_init(sc)) != 0) 415 goto out; 416 417 /* 418 * Start the heartbeat routine and event chain. 419 */ 420 ciss_periodic(sc); 421 422 /* 423 * Create the control device. 424 */ 425 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 426 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 427 "ciss%d", device_get_unit(sc->ciss_dev)); 428 sc->ciss_dev_t->si_drv1 = sc; 429 430 /* 431 * The adapter is running; synchronous commands can now sleep 432 * waiting for an interrupt to signal completion. 433 */ 434 sc->ciss_flags |= CISS_FLAG_RUNNING; 435 436 ciss_spawn_notify_thread(sc); 437 438 error = 0; 439 out: 440 if (error != 0) 441 ciss_free(sc); 442 return(error); 443 } 444 445 /************************************************************************ 446 * Detach the driver from this adapter. 447 */ 448 static int 449 ciss_detach(device_t dev) 450 { 451 struct ciss_softc *sc = device_get_softc(dev); 452 453 debug_called(1); 454 455 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 456 return (EBUSY); 457 458 /* flush adapter cache */ 459 ciss_flush_adapter(sc); 460 461 /* release all resources */ 462 ciss_free(sc); 463 464 return(0); 465 } 466 467 /************************************************************************ 468 * Prepare adapter for system shutdown. 469 */ 470 static int 471 ciss_shutdown(device_t dev) 472 { 473 struct ciss_softc *sc = device_get_softc(dev); 474 475 debug_called(1); 476 477 /* flush adapter cache */ 478 ciss_flush_adapter(sc); 479 480 return(0); 481 } 482 483 /************************************************************************ 484 * Perform PCI-specific attachment actions. 485 */ 486 static int 487 ciss_init_pci(struct ciss_softc *sc) 488 { 489 uintptr_t cbase, csize, cofs; 490 int error; 491 492 debug_called(1); 493 494 /* 495 * Allocate register window first (we need this to find the config 496 * struct). 497 */ 498 error = ENXIO; 499 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 500 if ((sc->ciss_regs_resource = 501 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 502 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 503 ciss_printf(sc, "can't allocate register window\n"); 504 return(ENXIO); 505 } 506 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 507 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 508 509 /* 510 * Find the BAR holding the config structure. If it's not the one 511 * we already mapped for registers, map it too. 512 */ 513 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 514 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 515 if ((sc->ciss_cfg_resource = 516 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 517 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 518 ciss_printf(sc, "can't allocate config window\n"); 519 return(ENXIO); 520 } 521 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 522 csize = rman_get_end(sc->ciss_cfg_resource) - 523 rman_get_start(sc->ciss_cfg_resource) + 1; 524 } else { 525 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 526 csize = rman_get_end(sc->ciss_regs_resource) - 527 rman_get_start(sc->ciss_regs_resource) + 1; 528 } 529 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 530 531 /* 532 * Use the base/size/offset values we just calculated to 533 * sanity-check the config structure. If it's OK, point to it. 534 */ 535 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 536 ciss_printf(sc, "config table outside window\n"); 537 return(ENXIO); 538 } 539 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 540 debug(1, "config struct at %p", sc->ciss_cfg); 541 542 /* 543 * Validate the config structure. If we supported other transport 544 * methods, we could select amongst them at this point in time. 545 */ 546 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 547 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 548 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 549 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 550 return(ENXIO); 551 } 552 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 553 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 554 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 555 sc->ciss_cfg->valence); 556 return(ENXIO); 557 } 558 559 /* 560 * Put the board into simple mode, and tell it we're using the low 561 * 4GB of RAM. Set the default interrupt coalescing options. 562 */ 563 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 564 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 565 return(ENXIO); 566 } 567 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 568 sc->ciss_cfg->command_physlimit = 0; 569 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 570 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 571 572 #ifdef __i386__ 573 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 574 #endif 575 576 if (ciss_update_config(sc)) { 577 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 578 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 579 return(ENXIO); 580 } 581 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 582 ciss_printf(sc, 583 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 584 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 585 return(ENXIO); 586 } 587 588 /* 589 * Wait for the adapter to come ready. 590 */ 591 if ((error = ciss_wait_adapter(sc)) != 0) 592 return(error); 593 594 /* 595 * Turn off interrupts before we go routing anything. 596 */ 597 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 598 599 /* 600 * Allocate and set up our interrupt. 601 */ 602 sc->ciss_irq_rid = 0; 603 if ((sc->ciss_irq_resource = 604 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 605 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 606 ciss_printf(sc, "can't allocate interrupt\n"); 607 return(ENXIO); 608 } 609 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 610 &sc->ciss_intr)) { 611 ciss_printf(sc, "can't set up interrupt\n"); 612 return(ENXIO); 613 } 614 615 /* 616 * Allocate the parent bus DMA tag appropriate for our PCI 617 * interface. 618 * 619 * Note that "simple" adapters can only address within a 32-bit 620 * span. 621 */ 622 if (bus_dma_tag_create(NULL, /* parent */ 623 1, 0, /* alignment, boundary */ 624 BUS_SPACE_MAXADDR, /* lowaddr */ 625 BUS_SPACE_MAXADDR, /* highaddr */ 626 NULL, NULL, /* filter, filterarg */ 627 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 628 CISS_COMMAND_SG_LENGTH, /* nsegments */ 629 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 630 BUS_DMA_ALLOCNOW, /* flags */ 631 NULL, NULL, /* lockfunc, lockarg */ 632 &sc->ciss_parent_dmat)) { 633 ciss_printf(sc, "can't allocate parent DMA tag\n"); 634 return(ENOMEM); 635 } 636 637 /* 638 * Create DMA tag for mapping buffers into adapter-addressable 639 * space. 640 */ 641 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 642 1, 0, /* alignment, boundary */ 643 BUS_SPACE_MAXADDR, /* lowaddr */ 644 BUS_SPACE_MAXADDR, /* highaddr */ 645 NULL, NULL, /* filter, filterarg */ 646 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 647 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 648 0, /* flags */ 649 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 650 &sc->ciss_buffer_dmat)) { 651 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 652 return(ENOMEM); 653 } 654 return(0); 655 } 656 657 /************************************************************************ 658 * Wait for the adapter to come ready. 659 */ 660 static int 661 ciss_wait_adapter(struct ciss_softc *sc) 662 { 663 int i; 664 665 debug_called(1); 666 667 /* 668 * Wait for the adapter to come ready. 669 */ 670 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 671 ciss_printf(sc, "waiting for adapter to come ready...\n"); 672 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 673 DELAY(1000000); /* one second */ 674 if (i > 30) { 675 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 676 return(EIO); 677 } 678 } 679 } 680 return(0); 681 } 682 683 /************************************************************************ 684 * Flush the adapter cache. 685 */ 686 static int 687 ciss_flush_adapter(struct ciss_softc *sc) 688 { 689 struct ciss_request *cr; 690 struct ciss_bmic_flush_cache *cbfc; 691 int error, command_status; 692 693 debug_called(1); 694 695 cr = NULL; 696 cbfc = NULL; 697 698 /* 699 * Build a BMIC request to flush the cache. We don't disable 700 * it, as we may be going to do more I/O (eg. we are emulating 701 * the Synchronise Cache command). 702 */ 703 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 704 error = ENOMEM; 705 goto out; 706 } 707 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 708 (void **)&cbfc, sizeof(*cbfc))) != 0) 709 goto out; 710 711 /* 712 * Submit the request and wait for it to complete. 713 */ 714 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 715 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 716 goto out; 717 } 718 719 /* 720 * Check response. 721 */ 722 ciss_report_request(cr, &command_status, NULL); 723 switch(command_status) { 724 case CISS_CMD_STATUS_SUCCESS: 725 break; 726 default: 727 ciss_printf(sc, "error flushing cache (%s)\n", 728 ciss_name_command_status(command_status)); 729 error = EIO; 730 goto out; 731 } 732 733 out: 734 if (cbfc != NULL) 735 free(cbfc, CISS_MALLOC_CLASS); 736 if (cr != NULL) 737 ciss_release_request(cr); 738 return(error); 739 } 740 741 /************************************************************************ 742 * Allocate memory for the adapter command structures, initialise 743 * the request structures. 744 * 745 * Note that the entire set of commands are allocated in a single 746 * contiguous slab. 747 */ 748 static int 749 ciss_init_requests(struct ciss_softc *sc) 750 { 751 struct ciss_request *cr; 752 int i; 753 754 debug_called(1); 755 756 /* 757 * Calculate the number of request structures/commands we are 758 * going to provide for this adapter. 759 */ 760 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 761 762 if (bootverbose) 763 ciss_printf(sc, "using %d of %d available commands\n", 764 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 765 766 /* 767 * Create the DMA tag for commands. 768 */ 769 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 770 1, 0, /* alignment, boundary */ 771 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 772 BUS_SPACE_MAXADDR, /* highaddr */ 773 NULL, NULL, /* filter, filterarg */ 774 CISS_COMMAND_ALLOC_SIZE * 775 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 776 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 777 BUS_DMA_ALLOCNOW, /* flags */ 778 NULL, NULL, /* lockfunc, lockarg */ 779 &sc->ciss_command_dmat)) { 780 ciss_printf(sc, "can't allocate command DMA tag\n"); 781 return(ENOMEM); 782 } 783 /* 784 * Allocate memory and make it available for DMA. 785 */ 786 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 787 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 788 ciss_printf(sc, "can't allocate command memory\n"); 789 return(ENOMEM); 790 } 791 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 792 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 793 ciss_command_map_helper, sc, 0); 794 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 795 796 /* 797 * Set up the request and command structures, push requests onto 798 * the free queue. 799 */ 800 for (i = 1; i < sc->ciss_max_requests; i++) { 801 cr = &sc->ciss_request[i]; 802 cr->cr_sc = sc; 803 cr->cr_tag = i; 804 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 805 ciss_enqueue_free(cr); 806 } 807 return(0); 808 } 809 810 static void 811 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 812 { 813 struct ciss_softc *sc = (struct ciss_softc *)arg; 814 815 sc->ciss_command_phys = segs->ds_addr; 816 } 817 818 /************************************************************************ 819 * Identify the adapter, print some information about it. 820 */ 821 static int 822 ciss_identify_adapter(struct ciss_softc *sc) 823 { 824 struct ciss_request *cr; 825 int error, command_status; 826 827 debug_called(1); 828 829 cr = NULL; 830 831 /* 832 * Get a request, allocate storage for the adapter data. 833 */ 834 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 835 (void **)&sc->ciss_id, 836 sizeof(*sc->ciss_id))) != 0) 837 goto out; 838 839 /* 840 * Submit the request and wait for it to complete. 841 */ 842 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 843 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 844 goto out; 845 } 846 847 /* 848 * Check response. 849 */ 850 ciss_report_request(cr, &command_status, NULL); 851 switch(command_status) { 852 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 853 break; 854 case CISS_CMD_STATUS_DATA_UNDERRUN: 855 case CISS_CMD_STATUS_DATA_OVERRUN: 856 ciss_printf(sc, "data over/underrun reading adapter information\n"); 857 default: 858 ciss_printf(sc, "error reading adapter information (%s)\n", 859 ciss_name_command_status(command_status)); 860 error = EIO; 861 goto out; 862 } 863 864 /* sanity-check reply */ 865 if (!sc->ciss_id->big_map_supported) { 866 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 867 error = ENXIO; 868 goto out; 869 } 870 871 #if 0 872 /* XXX later revisions may not need this */ 873 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 874 #endif 875 876 /* XXX only really required for old 5300 adapters? */ 877 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 878 879 /* print information */ 880 if (bootverbose) { 881 #if 0 /* XXX proxy volumes??? */ 882 ciss_printf(sc, " %d logical drive%s configured\n", 883 sc->ciss_id->configured_logical_drives, 884 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 885 #endif 886 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 887 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 888 889 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 890 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 891 ciss_printf(sc, " supported I/O methods 0x%b\n", 892 sc->ciss_cfg->supported_methods, 893 "\20\1READY\2simple\3performant\4MEMQ\n"); 894 ciss_printf(sc, " active I/O method 0x%b\n", 895 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 896 ciss_printf(sc, " 4G page base 0x%08x\n", 897 sc->ciss_cfg->command_physlimit); 898 ciss_printf(sc, " interrupt coalesce delay %dus\n", 899 sc->ciss_cfg->interrupt_coalesce_delay); 900 ciss_printf(sc, " interrupt coalesce count %d\n", 901 sc->ciss_cfg->interrupt_coalesce_count); 902 ciss_printf(sc, " max outstanding commands %d\n", 903 sc->ciss_cfg->max_outstanding_commands); 904 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 905 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 906 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 907 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 908 } 909 910 out: 911 if (error) { 912 if (sc->ciss_id != NULL) { 913 free(sc->ciss_id, CISS_MALLOC_CLASS); 914 sc->ciss_id = NULL; 915 } 916 } 917 if (cr != NULL) 918 ciss_release_request(cr); 919 return(error); 920 } 921 922 /************************************************************************ 923 * Helper routine for generating a list of logical and physical luns. 924 */ 925 static struct ciss_lun_report * 926 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 927 { 928 struct ciss_request *cr; 929 struct ciss_command *cc; 930 struct ciss_report_cdb *crc; 931 struct ciss_lun_report *cll; 932 int command_status; 933 int report_size; 934 int error = 0; 935 936 debug_called(1); 937 938 cr = NULL; 939 cll = NULL; 940 941 /* 942 * Get a request, allocate storage for the address list. 943 */ 944 if ((error = ciss_get_request(sc, &cr)) != 0) 945 goto out; 946 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 947 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 948 ciss_printf(sc, "can't allocate memory for lun report\n"); 949 error = ENOMEM; 950 goto out; 951 } 952 953 /* 954 * Build the Report Logical/Physical LUNs command. 955 */ 956 cc = CISS_FIND_COMMAND(cr); 957 cr->cr_data = cll; 958 cr->cr_length = report_size; 959 cr->cr_flags = CISS_REQ_DATAIN; 960 961 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 962 cc->header.address.physical.bus = 0; 963 cc->header.address.physical.target = 0; 964 cc->cdb.cdb_length = sizeof(*crc); 965 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 966 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 967 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 968 cc->cdb.timeout = 30; /* XXX better suggestions? */ 969 970 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 971 bzero(crc, sizeof(*crc)); 972 crc->opcode = opcode; 973 crc->length = htonl(report_size); /* big-endian field */ 974 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 975 976 /* 977 * Submit the request and wait for it to complete. (timeout 978 * here should be much greater than above) 979 */ 980 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 981 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 982 goto out; 983 } 984 985 /* 986 * Check response. Note that data over/underrun is OK. 987 */ 988 ciss_report_request(cr, &command_status, NULL); 989 switch(command_status) { 990 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 991 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 992 break; 993 case CISS_CMD_STATUS_DATA_OVERRUN: 994 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 995 CISS_MAX_LOGICAL); 996 break; 997 default: 998 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 999 ciss_name_command_status(command_status)); 1000 error = EIO; 1001 goto out; 1002 } 1003 ciss_release_request(cr); 1004 cr = NULL; 1005 1006 out: 1007 if (cr != NULL) 1008 ciss_release_request(cr); 1009 if (error && cll != NULL) { 1010 free(cll, CISS_MALLOC_CLASS); 1011 cll = NULL; 1012 } 1013 return(cll); 1014 } 1015 1016 /************************************************************************ 1017 * Find logical drives on the adapter. 1018 */ 1019 static int 1020 ciss_init_logical(struct ciss_softc *sc) 1021 { 1022 struct ciss_lun_report *cll; 1023 int error = 0, i, j; 1024 int ndrives; 1025 1026 debug_called(1); 1027 1028 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1029 CISS_MAX_LOGICAL); 1030 if (cll == NULL) { 1031 error = ENXIO; 1032 goto out; 1033 } 1034 1035 /* sanity-check reply */ 1036 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1037 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1038 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1039 ndrives, CISS_MAX_LOGICAL); 1040 error = ENXIO; 1041 goto out; 1042 } 1043 1044 /* 1045 * Save logical drive information. 1046 */ 1047 if (bootverbose) { 1048 ciss_printf(sc, "%d logical drive%s\n", 1049 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1050 } 1051 1052 sc->ciss_logical = 1053 malloc(sc->ciss_max_bus_number * sizeof(struct ciss_ldrive *), 1054 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1055 if (sc->ciss_logical == NULL) { 1056 error = ENXIO; 1057 goto out; 1058 } 1059 1060 for (i = 0; i <= sc->ciss_max_bus_number; i++) { 1061 sc->ciss_logical[i] = 1062 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1063 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1064 if (sc->ciss_logical[i] == NULL) { 1065 error = ENXIO; 1066 goto out; 1067 } 1068 1069 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1070 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1071 } 1072 1073 1074 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1075 if (i < ndrives) { 1076 struct ciss_ldrive *ld; 1077 int bus, target; 1078 1079 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1080 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1081 ld = &sc->ciss_logical[bus][target]; 1082 1083 ld->cl_address = cll->lun[i]; 1084 ld->cl_controller = &sc->ciss_controllers[bus]; 1085 if (ciss_identify_logical(sc, ld) != 0) 1086 continue; 1087 /* 1088 * If the drive has had media exchanged, we should bring it online. 1089 */ 1090 if (ld->cl_lstatus->media_exchanged) 1091 ciss_accept_media(sc, ld, 0); 1092 1093 } 1094 } 1095 1096 out: 1097 if (cll != NULL) 1098 free(cll, CISS_MALLOC_CLASS); 1099 return(error); 1100 } 1101 1102 static int 1103 ciss_init_physical(struct ciss_softc *sc) 1104 { 1105 struct ciss_lun_report *cll; 1106 int error = 0, i; 1107 int nphys; 1108 1109 debug_called(1); 1110 1111 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1112 CISS_MAX_PHYSICAL); 1113 if (cll == NULL) { 1114 error = ENXIO; 1115 goto out; 1116 } 1117 1118 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1119 1120 if (bootverbose) { 1121 ciss_printf(sc, "%d physical device%s\n", 1122 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1123 } 1124 1125 /* 1126 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1127 * controller. A proxy controller is another physical controller 1128 * behind the primary PCI controller. We need to know about this 1129 * so that BMIC commands can be properly targeted. There can be 1130 * proxy controllers attached to a single PCI controller, so 1131 * find the highest numbered one so the array can be properly 1132 * sized. 1133 */ 1134 sc->ciss_max_bus_number = 1; 1135 for (i = 0; i < nphys; i++) { 1136 if (cll->lun[i].physical.extra_address == 0) { 1137 sc->ciss_max_bus_number = cll->lun[i].physical.bus + 1; 1138 } 1139 } 1140 1141 sc->ciss_controllers = 1142 malloc(sc->ciss_max_bus_number * sizeof (union ciss_device_address), 1143 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1144 1145 if (sc->ciss_controllers == NULL) { 1146 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1147 error = ENOMEM; 1148 goto out; 1149 } 1150 1151 /* setup a map of controller addresses */ 1152 for (i = 0; i < nphys; i++) { 1153 if (cll->lun[i].physical.extra_address == 0) { 1154 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1155 } 1156 } 1157 1158 out: 1159 if (cll != NULL) 1160 free(cll, CISS_MALLOC_CLASS); 1161 1162 return(error); 1163 } 1164 1165 static int 1166 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1167 { 1168 struct ciss_request *cr; 1169 struct ciss_command *cc; 1170 struct scsi_inquiry *inq; 1171 int error; 1172 int command_status; 1173 1174 cr = NULL; 1175 1176 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1177 1178 if ((error = ciss_get_request(sc, &cr)) != 0) 1179 goto out; 1180 1181 cc = CISS_FIND_COMMAND(cr); 1182 cr->cr_data = &ld->cl_geometry; 1183 cr->cr_length = sizeof(ld->cl_geometry); 1184 cr->cr_flags = CISS_REQ_DATAIN; 1185 1186 cc->header.address = ld->cl_address; 1187 cc->cdb.cdb_length = 6; 1188 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1189 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1190 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1191 cc->cdb.timeout = 30; 1192 1193 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1194 inq->opcode = INQUIRY; 1195 inq->byte2 = SI_EVPD; 1196 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1197 inq->length = sizeof(ld->cl_geometry); 1198 1199 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1200 ciss_printf(sc, "error getting geometry (%d)\n", error); 1201 goto out; 1202 } 1203 1204 ciss_report_request(cr, &command_status, NULL); 1205 switch(command_status) { 1206 case CISS_CMD_STATUS_SUCCESS: 1207 case CISS_CMD_STATUS_DATA_UNDERRUN: 1208 break; 1209 case CISS_CMD_STATUS_DATA_OVERRUN: 1210 ciss_printf(sc, "WARNING: Data overrun\n"); 1211 break; 1212 default: 1213 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1214 ciss_name_command_status(command_status)); 1215 break; 1216 } 1217 1218 out: 1219 if (cr != NULL) 1220 ciss_release_request(cr); 1221 return(error); 1222 } 1223 /************************************************************************ 1224 * Identify a logical drive, initialise state related to it. 1225 */ 1226 static int 1227 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1228 { 1229 struct ciss_request *cr; 1230 struct ciss_command *cc; 1231 struct ciss_bmic_cdb *cbc; 1232 int error, command_status; 1233 1234 debug_called(1); 1235 1236 cr = NULL; 1237 1238 /* 1239 * Build a BMIC request to fetch the drive ID. 1240 */ 1241 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1242 (void **)&ld->cl_ldrive, 1243 sizeof(*ld->cl_ldrive))) != 0) 1244 goto out; 1245 cc = CISS_FIND_COMMAND(cr); 1246 cc->header.address = *ld->cl_controller; /* target controller */ 1247 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1248 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1249 1250 /* 1251 * Submit the request and wait for it to complete. 1252 */ 1253 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1254 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1255 goto out; 1256 } 1257 1258 /* 1259 * Check response. 1260 */ 1261 ciss_report_request(cr, &command_status, NULL); 1262 switch(command_status) { 1263 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1264 break; 1265 case CISS_CMD_STATUS_DATA_UNDERRUN: 1266 case CISS_CMD_STATUS_DATA_OVERRUN: 1267 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1268 default: 1269 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1270 ciss_name_command_status(command_status)); 1271 error = EIO; 1272 goto out; 1273 } 1274 ciss_release_request(cr); 1275 cr = NULL; 1276 1277 /* 1278 * Build a CISS BMIC command to get the logical drive status. 1279 */ 1280 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1281 goto out; 1282 1283 /* 1284 * Get the logical drive geometry. 1285 */ 1286 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1287 goto out; 1288 1289 /* 1290 * Print the drive's basic characteristics. 1291 */ 1292 if (bootverbose) { 1293 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1294 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1295 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1296 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1297 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1298 ld->cl_ldrive->block_size)); 1299 1300 ciss_print_ldrive(sc, ld); 1301 } 1302 out: 1303 if (error != 0) { 1304 /* make the drive not-exist */ 1305 ld->cl_status = CISS_LD_NONEXISTENT; 1306 if (ld->cl_ldrive != NULL) { 1307 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1308 ld->cl_ldrive = NULL; 1309 } 1310 if (ld->cl_lstatus != NULL) { 1311 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1312 ld->cl_lstatus = NULL; 1313 } 1314 } 1315 if (cr != NULL) 1316 ciss_release_request(cr); 1317 1318 return(error); 1319 } 1320 1321 /************************************************************************ 1322 * Get status for a logical drive. 1323 * 1324 * XXX should we also do this in response to Test Unit Ready? 1325 */ 1326 static int 1327 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1328 { 1329 struct ciss_request *cr; 1330 struct ciss_command *cc; 1331 struct ciss_bmic_cdb *cbc; 1332 int error, command_status; 1333 1334 /* 1335 * Build a CISS BMIC command to get the logical drive status. 1336 */ 1337 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1338 (void **)&ld->cl_lstatus, 1339 sizeof(*ld->cl_lstatus))) != 0) 1340 goto out; 1341 cc = CISS_FIND_COMMAND(cr); 1342 cc->header.address = *ld->cl_controller; /* target controller */ 1343 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1344 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1345 1346 /* 1347 * Submit the request and wait for it to complete. 1348 */ 1349 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1350 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1351 goto out; 1352 } 1353 1354 /* 1355 * Check response. 1356 */ 1357 ciss_report_request(cr, &command_status, NULL); 1358 switch(command_status) { 1359 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1360 break; 1361 case CISS_CMD_STATUS_DATA_UNDERRUN: 1362 case CISS_CMD_STATUS_DATA_OVERRUN: 1363 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1364 default: 1365 ciss_printf(sc, "error reading logical drive status (%s)\n", 1366 ciss_name_command_status(command_status)); 1367 error = EIO; 1368 goto out; 1369 } 1370 1371 /* 1372 * Set the drive's summary status based on the returned status. 1373 * 1374 * XXX testing shows that a failed JBOD drive comes back at next 1375 * boot in "queued for expansion" mode. WTF? 1376 */ 1377 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1378 1379 out: 1380 if (cr != NULL) 1381 ciss_release_request(cr); 1382 return(error); 1383 } 1384 1385 /************************************************************************ 1386 * Notify the adapter of a config update. 1387 */ 1388 static int 1389 ciss_update_config(struct ciss_softc *sc) 1390 { 1391 int i; 1392 1393 debug_called(1); 1394 1395 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1396 for (i = 0; i < 1000; i++) { 1397 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1398 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1399 return(0); 1400 } 1401 DELAY(1000); 1402 } 1403 return(1); 1404 } 1405 1406 /************************************************************************ 1407 * Accept new media into a logical drive. 1408 * 1409 * XXX The drive has previously been offline; it would be good if we 1410 * could make sure it's not open right now. 1411 */ 1412 static int 1413 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld, int async) 1414 { 1415 struct ciss_request *cr; 1416 struct ciss_command *cc; 1417 struct ciss_bmic_cdb *cbc; 1418 int error, ldrive; 1419 1420 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1421 1422 debug(0, "bringing logical drive %d back online %ssynchronously", 1423 ldrive, async ? "a" : ""); 1424 1425 /* 1426 * Build a CISS BMIC command to bring the drive back online. 1427 */ 1428 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1429 NULL, 0)) != 0) 1430 goto out; 1431 cc = CISS_FIND_COMMAND(cr); 1432 cc->header.address = *ld->cl_controller; /* target controller */ 1433 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1434 cbc->log_drive = ldrive; 1435 1436 /* 1437 * Dispatch the request asynchronously if we can't sleep waiting 1438 * for it to complete. 1439 */ 1440 if (async) { 1441 cr->cr_complete = ciss_accept_media_complete; 1442 if ((error = ciss_start(cr)) != 0) 1443 goto out; 1444 return(0); 1445 } else { 1446 /* 1447 * Submit the request and wait for it to complete. 1448 */ 1449 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1450 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1451 goto out; 1452 } 1453 } 1454 1455 /* 1456 * Call the completion callback manually. 1457 */ 1458 ciss_accept_media_complete(cr); 1459 return(0); 1460 1461 out: 1462 if (cr != NULL) 1463 ciss_release_request(cr); 1464 return(error); 1465 } 1466 1467 static void 1468 ciss_accept_media_complete(struct ciss_request *cr) 1469 { 1470 int command_status; 1471 1472 /* 1473 * Check response. 1474 */ 1475 ciss_report_request(cr, &command_status, NULL); 1476 switch(command_status) { 1477 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1478 /* we should get a logical drive status changed event here */ 1479 break; 1480 default: 1481 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1482 ciss_name_command_status(command_status)); 1483 break; 1484 } 1485 ciss_release_request(cr); 1486 } 1487 1488 /************************************************************************ 1489 * Release adapter resources. 1490 */ 1491 static void 1492 ciss_free(struct ciss_softc *sc) 1493 { 1494 struct ciss_request *cr; 1495 int i; 1496 1497 debug_called(1); 1498 1499 /* we're going away */ 1500 sc->ciss_flags |= CISS_FLAG_ABORTING; 1501 1502 /* terminate the periodic heartbeat routine */ 1503 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1504 1505 /* cancel the Event Notify chain */ 1506 ciss_notify_abort(sc); 1507 1508 ciss_kill_notify_thread(sc); 1509 1510 /* remove the control device */ 1511 if (sc->ciss_dev_t != NULL) 1512 destroy_dev(sc->ciss_dev_t); 1513 1514 /* free the controller data */ 1515 if (sc->ciss_id != NULL) 1516 free(sc->ciss_id, CISS_MALLOC_CLASS); 1517 1518 /* release I/O resources */ 1519 if (sc->ciss_regs_resource != NULL) 1520 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1521 sc->ciss_regs_rid, sc->ciss_regs_resource); 1522 if (sc->ciss_cfg_resource != NULL) 1523 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1524 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1525 if (sc->ciss_intr != NULL) 1526 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1527 if (sc->ciss_irq_resource != NULL) 1528 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1529 sc->ciss_irq_rid, sc->ciss_irq_resource); 1530 1531 /* destroy DMA tags */ 1532 if (sc->ciss_parent_dmat) 1533 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1534 1535 while ((cr = ciss_dequeue_free(sc)) != NULL) 1536 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1537 if (sc->ciss_buffer_dmat) 1538 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1539 1540 /* destroy command memory and DMA tag */ 1541 if (sc->ciss_command != NULL) { 1542 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1543 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1544 } 1545 if (sc->ciss_command_dmat) 1546 bus_dma_tag_destroy(sc->ciss_command_dmat); 1547 1548 /* disconnect from CAM */ 1549 if (sc->ciss_cam_sim) { 1550 for (i = 0; i < sc->ciss_max_bus_number; i++) { 1551 if (sc->ciss_cam_sim[i]) { 1552 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1553 cam_sim_free(sc->ciss_cam_sim[i], 0); 1554 } 1555 } 1556 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1557 } 1558 if (sc->ciss_cam_devq) 1559 cam_simq_free(sc->ciss_cam_devq); 1560 1561 if (sc->ciss_logical) { 1562 for (i = 0; i < sc->ciss_max_bus_number; i++) 1563 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1564 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1565 } 1566 1567 if (sc->ciss_controllers) 1568 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1569 } 1570 1571 /************************************************************************ 1572 * Give a command to the adapter. 1573 * 1574 * Note that this uses the simple transport layer directly. If we 1575 * want to add support for other layers, we'll need a switch of some 1576 * sort. 1577 * 1578 * Note that the simple transport layer has no way of refusing a 1579 * command; we only have as many request structures as the adapter 1580 * supports commands, so we don't have to check (this presumes that 1581 * the adapter can handle commands as fast as we throw them at it). 1582 */ 1583 static int 1584 ciss_start(struct ciss_request *cr) 1585 { 1586 struct ciss_command *cc; /* XXX debugging only */ 1587 int error; 1588 1589 cc = CISS_FIND_COMMAND(cr); 1590 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1591 1592 /* 1593 * Map the request's data. 1594 */ 1595 if ((error = ciss_map_request(cr))) 1596 return(error); 1597 1598 #if 0 1599 ciss_print_request(cr); 1600 #endif 1601 1602 return(0); 1603 } 1604 1605 /************************************************************************ 1606 * Fetch completed request(s) from the adapter, queue them for 1607 * completion handling. 1608 * 1609 * Note that this uses the simple transport layer directly. If we 1610 * want to add support for other layers, we'll need a switch of some 1611 * sort. 1612 * 1613 * Note that the simple transport mechanism does not require any 1614 * reentrancy protection; the OPQ read is atomic. If there is a 1615 * chance of a race with something else that might move the request 1616 * off the busy list, then we will have to lock against that 1617 * (eg. timeouts, etc.) 1618 */ 1619 static void 1620 ciss_done(struct ciss_softc *sc) 1621 { 1622 struct ciss_request *cr; 1623 struct ciss_command *cc; 1624 u_int32_t tag, index; 1625 int complete; 1626 1627 debug_called(3); 1628 1629 /* 1630 * Loop quickly taking requests from the adapter and moving them 1631 * from the busy queue to the completed queue. 1632 */ 1633 complete = 0; 1634 for (;;) { 1635 1636 /* see if the OPQ contains anything */ 1637 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1638 break; 1639 1640 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1641 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1642 break; 1643 index = tag >> 2; 1644 debug(2, "completed command %d%s", index, 1645 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1646 if (index >= sc->ciss_max_requests) { 1647 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1648 continue; 1649 } 1650 cr = &(sc->ciss_request[index]); 1651 cc = CISS_FIND_COMMAND(cr); 1652 cc->header.host_tag = tag; /* not updated by adapter */ 1653 if (ciss_remove_busy(cr)) { 1654 /* assume this is garbage out of the adapter */ 1655 ciss_printf(sc, "completed nonbusy request %d\n", index); 1656 } else { 1657 ciss_enqueue_complete(cr); 1658 } 1659 complete = 1; 1660 } 1661 1662 /* 1663 * Invoke completion processing. If we can defer this out of 1664 * interrupt context, that'd be good. 1665 */ 1666 if (complete) 1667 ciss_complete(sc); 1668 } 1669 1670 /************************************************************************ 1671 * Take an interrupt from the adapter. 1672 */ 1673 static void 1674 ciss_intr(void *arg) 1675 { 1676 struct ciss_softc *sc = (struct ciss_softc *)arg; 1677 1678 /* 1679 * The only interrupt we recognise indicates that there are 1680 * entries in the outbound post queue. 1681 */ 1682 ciss_done(sc); 1683 } 1684 1685 /************************************************************************ 1686 * Process completed requests. 1687 * 1688 * Requests can be completed in three fashions: 1689 * 1690 * - by invoking a callback function (cr_complete is non-null) 1691 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1692 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1693 */ 1694 static void 1695 ciss_complete(struct ciss_softc *sc) 1696 { 1697 struct ciss_request *cr; 1698 1699 debug_called(2); 1700 1701 /* 1702 * Loop taking requests off the completed queue and performing 1703 * completion processing on them. 1704 */ 1705 for (;;) { 1706 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1707 break; 1708 ciss_unmap_request(cr); 1709 1710 /* 1711 * If the request has a callback, invoke it. 1712 */ 1713 if (cr->cr_complete != NULL) { 1714 cr->cr_complete(cr); 1715 continue; 1716 } 1717 1718 /* 1719 * If someone is sleeping on this request, wake them up. 1720 */ 1721 if (cr->cr_flags & CISS_REQ_SLEEP) { 1722 cr->cr_flags &= ~CISS_REQ_SLEEP; 1723 wakeup(cr); 1724 continue; 1725 } 1726 1727 /* 1728 * If someone is polling this request for completion, signal. 1729 */ 1730 if (cr->cr_flags & CISS_REQ_POLL) { 1731 cr->cr_flags &= ~CISS_REQ_POLL; 1732 continue; 1733 } 1734 1735 /* 1736 * Give up and throw the request back on the free queue. This 1737 * should never happen; resources will probably be lost. 1738 */ 1739 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1740 ciss_enqueue_free(cr); 1741 } 1742 } 1743 1744 /************************************************************************ 1745 * Report on the completion status of a request, and pass back SCSI 1746 * and command status values. 1747 */ 1748 static int 1749 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1750 { 1751 struct ciss_command *cc; 1752 struct ciss_error_info *ce; 1753 1754 debug_called(2); 1755 1756 cc = CISS_FIND_COMMAND(cr); 1757 ce = (struct ciss_error_info *)&(cc->sg[0]); 1758 1759 /* 1760 * We don't consider data under/overrun an error for the Report 1761 * Logical/Physical LUNs commands. 1762 */ 1763 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1764 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1765 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1766 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1767 debug(2, "ignoring irrelevant under/overrun error"); 1768 } 1769 1770 /* 1771 * Check the command's error bit, if clear, there's no status and 1772 * everything is OK. 1773 */ 1774 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1775 if (scsi_status != NULL) 1776 *scsi_status = SCSI_STATUS_OK; 1777 if (command_status != NULL) 1778 *command_status = CISS_CMD_STATUS_SUCCESS; 1779 return(0); 1780 } else { 1781 if (command_status != NULL) 1782 *command_status = ce->command_status; 1783 if (scsi_status != NULL) { 1784 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1785 *scsi_status = ce->scsi_status; 1786 } else { 1787 *scsi_status = -1; 1788 } 1789 } 1790 if (bootverbose) 1791 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1792 ce->command_status, ciss_name_command_status(ce->command_status), 1793 ce->scsi_status); 1794 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1795 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1796 ce->additional_error_info.invalid_command.offense_size, 1797 ce->additional_error_info.invalid_command.offense_offset, 1798 ce->additional_error_info.invalid_command.offense_value); 1799 } 1800 } 1801 #if 0 1802 ciss_print_request(cr); 1803 #endif 1804 return(1); 1805 } 1806 1807 /************************************************************************ 1808 * Issue a request and don't return until it's completed. 1809 * 1810 * Depending on adapter status, we may poll or sleep waiting for 1811 * completion. 1812 */ 1813 static int 1814 ciss_synch_request(struct ciss_request *cr, int timeout) 1815 { 1816 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1817 return(ciss_wait_request(cr, timeout)); 1818 } else { 1819 return(ciss_poll_request(cr, timeout)); 1820 } 1821 } 1822 1823 /************************************************************************ 1824 * Issue a request and poll for completion. 1825 * 1826 * Timeout in milliseconds. 1827 */ 1828 static int 1829 ciss_poll_request(struct ciss_request *cr, int timeout) 1830 { 1831 int error; 1832 1833 debug_called(2); 1834 1835 cr->cr_flags |= CISS_REQ_POLL; 1836 if ((error = ciss_start(cr)) != 0) 1837 return(error); 1838 1839 do { 1840 ciss_done(cr->cr_sc); 1841 if (!(cr->cr_flags & CISS_REQ_POLL)) 1842 return(0); 1843 DELAY(1000); 1844 } while (timeout-- >= 0); 1845 return(EWOULDBLOCK); 1846 } 1847 1848 /************************************************************************ 1849 * Issue a request and sleep waiting for completion. 1850 * 1851 * Timeout in milliseconds. Note that a spurious wakeup will reset 1852 * the timeout. 1853 */ 1854 static int 1855 ciss_wait_request(struct ciss_request *cr, int timeout) 1856 { 1857 int s, error; 1858 1859 debug_called(2); 1860 1861 cr->cr_flags |= CISS_REQ_SLEEP; 1862 if ((error = ciss_start(cr)) != 0) 1863 return(error); 1864 1865 s = splcam(); 1866 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 1867 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 1868 } 1869 splx(s); 1870 return(error); 1871 } 1872 1873 #if 0 1874 /************************************************************************ 1875 * Abort a request. Note that a potential exists here to race the 1876 * request being completed; the caller must deal with this. 1877 */ 1878 static int 1879 ciss_abort_request(struct ciss_request *ar) 1880 { 1881 struct ciss_request *cr; 1882 struct ciss_command *cc; 1883 struct ciss_message_cdb *cmc; 1884 int error; 1885 1886 debug_called(1); 1887 1888 /* get a request */ 1889 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1890 return(error); 1891 1892 /* build the abort command */ 1893 cc = CISS_FIND_COMMAND(cr); 1894 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1895 cc->header.address.physical.target = 0; 1896 cc->header.address.physical.bus = 0; 1897 cc->cdb.cdb_length = sizeof(*cmc); 1898 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1899 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1900 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1901 cc->cdb.timeout = 30; 1902 1903 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1904 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1905 cmc->type = CISS_MESSAGE_ABORT_TASK; 1906 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1907 1908 /* 1909 * Send the request and wait for a response. If we believe we 1910 * aborted the request OK, clear the flag that indicates it's 1911 * running. 1912 */ 1913 error = ciss_synch_request(cr, 35 * 1000); 1914 if (!error) 1915 error = ciss_report_request(cr, NULL, NULL); 1916 ciss_release_request(cr); 1917 1918 return(error); 1919 } 1920 #endif 1921 1922 1923 /************************************************************************ 1924 * Fetch and initialise a request 1925 */ 1926 static int 1927 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1928 { 1929 struct ciss_request *cr; 1930 1931 debug_called(2); 1932 1933 /* 1934 * Get a request and clean it up. 1935 */ 1936 if ((cr = ciss_dequeue_free(sc)) == NULL) 1937 return(ENOMEM); 1938 1939 cr->cr_data = NULL; 1940 cr->cr_flags = 0; 1941 cr->cr_complete = NULL; 1942 cr->cr_private = NULL; 1943 1944 ciss_preen_command(cr); 1945 *crp = cr; 1946 return(0); 1947 } 1948 1949 static void 1950 ciss_preen_command(struct ciss_request *cr) 1951 { 1952 struct ciss_command *cc; 1953 u_int32_t cmdphys; 1954 1955 /* 1956 * Clean up the command structure. 1957 * 1958 * Note that we set up the error_info structure here, since the 1959 * length can be overwritten by any command. 1960 */ 1961 cc = CISS_FIND_COMMAND(cr); 1962 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1963 cc->header.sg_total = 0; 1964 cc->header.host_tag = cr->cr_tag << 2; 1965 cc->header.host_tag_zeroes = 0; 1966 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1967 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1968 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1969 } 1970 1971 /************************************************************************ 1972 * Release a request to the free list. 1973 */ 1974 static void 1975 ciss_release_request(struct ciss_request *cr) 1976 { 1977 struct ciss_softc *sc; 1978 1979 debug_called(2); 1980 1981 sc = cr->cr_sc; 1982 1983 /* release the request to the free queue */ 1984 ciss_requeue_free(cr); 1985 } 1986 1987 /************************************************************************ 1988 * Allocate a request that will be used to send a BMIC command. Do some 1989 * of the common setup here to avoid duplicating it everywhere else. 1990 */ 1991 static int 1992 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1993 int opcode, void **bufp, size_t bufsize) 1994 { 1995 struct ciss_request *cr; 1996 struct ciss_command *cc; 1997 struct ciss_bmic_cdb *cbc; 1998 void *buf; 1999 int error; 2000 int dataout; 2001 2002 debug_called(2); 2003 2004 cr = NULL; 2005 buf = NULL; 2006 2007 /* 2008 * Get a request. 2009 */ 2010 if ((error = ciss_get_request(sc, &cr)) != 0) 2011 goto out; 2012 2013 /* 2014 * Allocate data storage if requested, determine the data direction. 2015 */ 2016 dataout = 0; 2017 if ((bufsize > 0) && (bufp != NULL)) { 2018 if (*bufp == NULL) { 2019 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2020 error = ENOMEM; 2021 goto out; 2022 } 2023 } else { 2024 buf = *bufp; 2025 dataout = 1; /* we are given a buffer, so we are writing */ 2026 } 2027 } 2028 2029 /* 2030 * Build a CISS BMIC command to get the logical drive ID. 2031 */ 2032 cr->cr_data = buf; 2033 cr->cr_length = bufsize; 2034 if (!dataout) 2035 cr->cr_flags = CISS_REQ_DATAIN; 2036 2037 cc = CISS_FIND_COMMAND(cr); 2038 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2039 cc->header.address.physical.bus = 0; 2040 cc->header.address.physical.target = 0; 2041 cc->cdb.cdb_length = sizeof(*cbc); 2042 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2043 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2044 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2045 cc->cdb.timeout = 0; 2046 2047 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2048 bzero(cbc, sizeof(*cbc)); 2049 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2050 cbc->bmic_opcode = opcode; 2051 cbc->size = htons((u_int16_t)bufsize); 2052 2053 out: 2054 if (error) { 2055 if (cr != NULL) 2056 ciss_release_request(cr); 2057 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2058 free(buf, CISS_MALLOC_CLASS); 2059 } else { 2060 *crp = cr; 2061 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2062 *bufp = buf; 2063 } 2064 return(error); 2065 } 2066 2067 /************************************************************************ 2068 * Handle a command passed in from userspace. 2069 */ 2070 static int 2071 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2072 { 2073 struct ciss_request *cr; 2074 struct ciss_command *cc; 2075 struct ciss_error_info *ce; 2076 int error = 0; 2077 2078 debug_called(1); 2079 2080 cr = NULL; 2081 2082 /* 2083 * Get a request. 2084 */ 2085 if ((error = ciss_get_request(sc, &cr)) != 0) 2086 goto out; 2087 cc = CISS_FIND_COMMAND(cr); 2088 2089 /* 2090 * Allocate an in-kernel databuffer if required, copy in user data. 2091 */ 2092 cr->cr_length = ioc->buf_size; 2093 if (ioc->buf_size > 0) { 2094 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2095 error = ENOMEM; 2096 goto out; 2097 } 2098 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2099 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2100 goto out; 2101 } 2102 } 2103 2104 /* 2105 * Build the request based on the user command. 2106 */ 2107 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2108 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2109 2110 /* XXX anything else to populate here? */ 2111 2112 /* 2113 * Run the command. 2114 */ 2115 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2116 debug(0, "request failed - %d", error); 2117 goto out; 2118 } 2119 2120 /* 2121 * Check to see if the command succeeded. 2122 */ 2123 ce = (struct ciss_error_info *)&(cc->sg[0]); 2124 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2125 bzero(ce, sizeof(*ce)); 2126 2127 /* 2128 * Copy the results back to the user. 2129 */ 2130 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2131 if ((ioc->buf_size > 0) && 2132 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2133 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2134 goto out; 2135 } 2136 2137 /* done OK */ 2138 error = 0; 2139 2140 out: 2141 if ((cr != NULL) && (cr->cr_data != NULL)) 2142 free(cr->cr_data, CISS_MALLOC_CLASS); 2143 if (cr != NULL) 2144 ciss_release_request(cr); 2145 return(error); 2146 } 2147 2148 /************************************************************************ 2149 * Map a request into bus-visible space, initialise the scatter/gather 2150 * list. 2151 */ 2152 static int 2153 ciss_map_request(struct ciss_request *cr) 2154 { 2155 struct ciss_softc *sc; 2156 int error = 0; 2157 2158 debug_called(2); 2159 2160 sc = cr->cr_sc; 2161 2162 /* check that mapping is necessary */ 2163 if (cr->cr_flags & CISS_REQ_MAPPED) 2164 return(0); 2165 2166 cr->cr_flags |= CISS_REQ_MAPPED; 2167 2168 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2169 BUS_DMASYNC_PREWRITE); 2170 2171 if (cr->cr_data != NULL) { 2172 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2173 cr->cr_data, cr->cr_length, 2174 ciss_request_map_helper, cr, 0); 2175 if (error != 0) 2176 return (error); 2177 } else { 2178 /* 2179 * Post the command to the adapter. 2180 */ 2181 ciss_enqueue_busy(cr); 2182 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2183 } 2184 2185 return(0); 2186 } 2187 2188 static void 2189 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2190 { 2191 struct ciss_command *cc; 2192 struct ciss_request *cr; 2193 struct ciss_softc *sc; 2194 int i; 2195 2196 debug_called(2); 2197 2198 cr = (struct ciss_request *)arg; 2199 sc = cr->cr_sc; 2200 cc = CISS_FIND_COMMAND(cr); 2201 2202 for (i = 0; i < nseg; i++) { 2203 cc->sg[i].address = segs[i].ds_addr; 2204 cc->sg[i].length = segs[i].ds_len; 2205 cc->sg[i].extension = 0; 2206 } 2207 /* we leave the s/g table entirely within the command */ 2208 cc->header.sg_in_list = nseg; 2209 cc->header.sg_total = nseg; 2210 2211 if (cr->cr_flags & CISS_REQ_DATAIN) 2212 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2213 if (cr->cr_flags & CISS_REQ_DATAOUT) 2214 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2215 2216 /* 2217 * Post the command to the adapter. 2218 */ 2219 ciss_enqueue_busy(cr); 2220 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2221 } 2222 2223 /************************************************************************ 2224 * Unmap a request from bus-visible space. 2225 */ 2226 static void 2227 ciss_unmap_request(struct ciss_request *cr) 2228 { 2229 struct ciss_softc *sc; 2230 2231 debug_called(2); 2232 2233 sc = cr->cr_sc; 2234 2235 /* check that unmapping is necessary */ 2236 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2237 return; 2238 2239 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2240 BUS_DMASYNC_POSTWRITE); 2241 2242 if (cr->cr_data == NULL) 2243 goto out; 2244 2245 if (cr->cr_flags & CISS_REQ_DATAIN) 2246 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2247 if (cr->cr_flags & CISS_REQ_DATAOUT) 2248 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2249 2250 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2251 out: 2252 cr->cr_flags &= ~CISS_REQ_MAPPED; 2253 } 2254 2255 /************************************************************************ 2256 * Attach the driver to CAM. 2257 * 2258 * We put all the logical drives on a single SCSI bus. 2259 */ 2260 static int 2261 ciss_cam_init(struct ciss_softc *sc) 2262 { 2263 int i; 2264 2265 debug_called(1); 2266 2267 /* 2268 * Allocate a devq. We can reuse this for the masked physical 2269 * devices if we decide to export these as well. 2270 */ 2271 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2272 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2273 return(ENOMEM); 2274 } 2275 2276 /* 2277 * Create a SIM. 2278 */ 2279 sc->ciss_cam_sim = malloc(sc->ciss_max_bus_number * sizeof(struct cam_sim *), 2280 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2281 if (sc->ciss_cam_sim == NULL) { 2282 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2283 return(ENOMEM); 2284 } 2285 2286 for (i = 0; i < sc->ciss_max_bus_number; i++) { 2287 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2288 "ciss", sc, 2289 device_get_unit(sc->ciss_dev), 2290 sc->ciss_max_requests - 2, 2291 1, 2292 sc->ciss_cam_devq)) == NULL) { 2293 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2294 return(ENOMEM); 2295 } 2296 2297 /* 2298 * Register bus with this SIM. 2299 */ 2300 if ((i == 0 || sc->ciss_controllers[i].physical.bus != 0) && 2301 xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2302 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2303 return(ENXIO); 2304 } 2305 } 2306 2307 /* 2308 * Initiate a rescan of the bus. 2309 */ 2310 ciss_cam_rescan_all(sc); 2311 2312 return(0); 2313 } 2314 2315 /************************************************************************ 2316 * Initiate a rescan of the 'logical devices' SIM 2317 */ 2318 static void 2319 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2320 { 2321 struct cam_path *path; 2322 union ccb *ccb; 2323 2324 debug_called(1); 2325 2326 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2327 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2328 return; 2329 } 2330 2331 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2332 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2333 ciss_printf(sc, "rescan failed (can't create path)\n"); 2334 free(ccb, M_TEMP); 2335 return; 2336 } 2337 2338 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2339 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2340 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2341 ccb->crcn.flags = CAM_FLAG_NONE; 2342 xpt_action(ccb); 2343 2344 /* scan is now in progress */ 2345 } 2346 2347 static void 2348 ciss_cam_rescan_all(struct ciss_softc *sc) 2349 { 2350 int i; 2351 2352 for (i = 0; i < sc->ciss_max_bus_number; i++) 2353 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2354 } 2355 2356 static void 2357 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2358 { 2359 xpt_free_path(ccb->ccb_h.path); 2360 free(ccb, M_TEMP); 2361 } 2362 2363 /************************************************************************ 2364 * Handle requests coming from CAM 2365 */ 2366 static void 2367 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2368 { 2369 struct ciss_softc *sc; 2370 struct ccb_scsiio *csio; 2371 int bus, target; 2372 2373 sc = cam_sim_softc(sim); 2374 bus = cam_sim_bus(sim); 2375 csio = (struct ccb_scsiio *)&ccb->csio; 2376 target = csio->ccb_h.target_id; 2377 2378 switch (ccb->ccb_h.func_code) { 2379 2380 /* perform SCSI I/O */ 2381 case XPT_SCSI_IO: 2382 if (!ciss_cam_action_io(sim, csio)) 2383 return; 2384 break; 2385 2386 /* perform geometry calculations */ 2387 case XPT_CALC_GEOMETRY: 2388 { 2389 struct ccb_calc_geometry *ccg = &ccb->ccg; 2390 struct ciss_ldrive *ld = &sc->ciss_logical[bus][target]; 2391 2392 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2393 2394 /* 2395 * Use the cached geometry settings unless the fault tolerance 2396 * is invalid. 2397 */ 2398 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2399 u_int32_t secs_per_cylinder; 2400 2401 ccg->heads = 255; 2402 ccg->secs_per_track = 32; 2403 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2404 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2405 } else { 2406 ccg->heads = ld->cl_geometry.heads; 2407 ccg->secs_per_track = ld->cl_geometry.sectors; 2408 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2409 } 2410 ccb->ccb_h.status = CAM_REQ_CMP; 2411 break; 2412 } 2413 2414 /* handle path attribute inquiry */ 2415 case XPT_PATH_INQ: 2416 { 2417 struct ccb_pathinq *cpi = &ccb->cpi; 2418 2419 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2420 2421 cpi->version_num = 1; 2422 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2423 cpi->target_sprt = 0; 2424 cpi->hba_misc = 0; 2425 cpi->max_target = CISS_MAX_LOGICAL; 2426 cpi->max_lun = 0; /* 'logical drive' channel only */ 2427 cpi->initiator_id = CISS_MAX_LOGICAL; 2428 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2429 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2430 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2431 cpi->unit_number = cam_sim_unit(sim); 2432 cpi->bus_id = cam_sim_bus(sim); 2433 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2434 ccb->ccb_h.status = CAM_REQ_CMP; 2435 break; 2436 } 2437 2438 case XPT_GET_TRAN_SETTINGS: 2439 { 2440 struct ccb_trans_settings *cts = &ccb->cts; 2441 int bus, target; 2442 2443 bus = cam_sim_bus(sim); 2444 target = cts->ccb_h.target_id; 2445 2446 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2447 cts->valid = 0; 2448 2449 /* disconnect always OK */ 2450 cts->flags |= CCB_TRANS_DISC_ENB; 2451 cts->valid |= CCB_TRANS_DISC_VALID; 2452 2453 cts->ccb_h.status = CAM_REQ_CMP; 2454 break; 2455 } 2456 2457 default: /* we can't do this */ 2458 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2459 ccb->ccb_h.status = CAM_REQ_INVALID; 2460 break; 2461 } 2462 2463 xpt_done(ccb); 2464 } 2465 2466 /************************************************************************ 2467 * Handle a CAM SCSI I/O request. 2468 */ 2469 static int 2470 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2471 { 2472 struct ciss_softc *sc; 2473 int bus, target; 2474 struct ciss_request *cr; 2475 struct ciss_command *cc; 2476 int error; 2477 2478 sc = cam_sim_softc(sim); 2479 bus = cam_sim_bus(sim); 2480 target = csio->ccb_h.target_id; 2481 2482 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2483 2484 /* firmware does not support commands > 10 bytes */ 2485 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2486 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2487 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2488 } 2489 2490 /* check that the CDB pointer is not to a physical address */ 2491 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2492 debug(3, " CDB pointer is to physical address"); 2493 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2494 } 2495 2496 /* if there is data transfer, it must be to/from a virtual address */ 2497 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2498 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2499 debug(3, " data pointer is to physical address"); 2500 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2501 } 2502 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2503 debug(3, " data has premature s/g setup"); 2504 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2505 } 2506 } 2507 2508 /* abandon aborted ccbs or those that have failed validation */ 2509 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2510 debug(3, "abandoning CCB due to abort/validation failure"); 2511 return(EINVAL); 2512 } 2513 2514 /* handle emulation of some SCSI commands ourself */ 2515 if (ciss_cam_emulate(sc, csio)) 2516 return(0); 2517 2518 /* 2519 * Get a request to manage this command. If we can't, return the 2520 * ccb, freeze the queue and flag so that we unfreeze it when a 2521 * request completes. 2522 */ 2523 if ((error = ciss_get_request(sc, &cr)) != 0) { 2524 xpt_freeze_simq(sc->ciss_cam_sim[bus], 1); 2525 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2526 return(error); 2527 } 2528 2529 /* 2530 * Build the command. 2531 */ 2532 cc = CISS_FIND_COMMAND(cr); 2533 cr->cr_data = csio->data_ptr; 2534 cr->cr_length = csio->dxfer_len; 2535 cr->cr_complete = ciss_cam_complete; 2536 cr->cr_private = csio; 2537 2538 /* 2539 * Target the right logical volume. 2540 */ 2541 cc->header.address = sc->ciss_logical[bus][target].cl_address; 2542 cc->cdb.cdb_length = csio->cdb_len; 2543 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2544 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2545 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2546 cr->cr_flags = CISS_REQ_DATAOUT; 2547 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2548 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2549 cr->cr_flags = CISS_REQ_DATAIN; 2550 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2551 } else { 2552 cr->cr_flags = 0; 2553 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2554 } 2555 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2556 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2557 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2558 } else { 2559 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2560 } 2561 2562 /* 2563 * Submit the request to the adapter. 2564 * 2565 * Note that this may fail if we're unable to map the request (and 2566 * if we ever learn a transport layer other than simple, may fail 2567 * if the adapter rejects the command). 2568 */ 2569 if ((error = ciss_start(cr)) != 0) { 2570 xpt_freeze_simq(sc->ciss_cam_sim[bus], 1); 2571 if (error == EINPROGRESS) { 2572 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2573 error = 0; 2574 } else { 2575 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2576 ciss_release_request(cr); 2577 } 2578 return(error); 2579 } 2580 2581 return(0); 2582 } 2583 2584 /************************************************************************ 2585 * Emulate SCSI commands the adapter doesn't handle as we might like. 2586 */ 2587 static int 2588 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2589 { 2590 int bus, target; 2591 u_int8_t opcode; 2592 2593 target = csio->ccb_h.target_id; 2594 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2595 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2596 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2597 2598 /* 2599 * Handle requests for volumes that don't exist. A selection timeout 2600 * is slightly better than an illegal request. Other errors might be 2601 * better. 2602 */ 2603 if (sc->ciss_logical[bus][target].cl_status == CISS_LD_NONEXISTENT) { 2604 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2605 xpt_done((union ccb *)csio); 2606 return(1); 2607 } 2608 2609 /* 2610 * Handle requests for volumes that exist but are offline. 2611 * 2612 * I/O operations should fail, everything else should work. 2613 */ 2614 if (sc->ciss_logical[bus][target].cl_status == CISS_LD_OFFLINE) { 2615 switch(opcode) { 2616 case READ_6: 2617 case READ_10: 2618 case READ_12: 2619 case WRITE_6: 2620 case WRITE_10: 2621 case WRITE_12: 2622 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2623 xpt_done((union ccb *)csio); 2624 return(1); 2625 } 2626 } 2627 2628 /* if we have to fake Synchronise Cache */ 2629 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2630 /* 2631 * If this is a Synchronise Cache command, typically issued when 2632 * a device is closed, flush the adapter and complete now. 2633 */ 2634 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2635 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2636 ciss_flush_adapter(sc); 2637 csio->ccb_h.status = CAM_REQ_CMP; 2638 xpt_done((union ccb *)csio); 2639 return(1); 2640 } 2641 } 2642 2643 return(0); 2644 } 2645 2646 /************************************************************************ 2647 * Check for possibly-completed commands. 2648 */ 2649 static void 2650 ciss_cam_poll(struct cam_sim *sim) 2651 { 2652 struct ciss_softc *sc = cam_sim_softc(sim); 2653 2654 debug_called(2); 2655 2656 ciss_done(sc); 2657 } 2658 2659 /************************************************************************ 2660 * Handle completion of a command - pass results back through the CCB 2661 */ 2662 static void 2663 ciss_cam_complete(struct ciss_request *cr) 2664 { 2665 struct ciss_softc *sc; 2666 struct ciss_command *cc; 2667 struct ciss_error_info *ce; 2668 struct ccb_scsiio *csio; 2669 int scsi_status; 2670 int command_status; 2671 2672 debug_called(2); 2673 2674 sc = cr->cr_sc; 2675 cc = CISS_FIND_COMMAND(cr); 2676 ce = (struct ciss_error_info *)&(cc->sg[0]); 2677 csio = (struct ccb_scsiio *)cr->cr_private; 2678 2679 /* 2680 * Extract status values from request. 2681 */ 2682 ciss_report_request(cr, &command_status, &scsi_status); 2683 csio->scsi_status = scsi_status; 2684 2685 /* 2686 * Handle specific SCSI status values. 2687 */ 2688 switch(scsi_status) { 2689 /* no status due to adapter error */ 2690 case -1: 2691 debug(0, "adapter error"); 2692 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2693 break; 2694 2695 /* no status due to command completed OK */ 2696 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2697 debug(2, "SCSI_STATUS_OK"); 2698 csio->ccb_h.status = CAM_REQ_CMP; 2699 break; 2700 2701 /* check condition, sense data included */ 2702 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2703 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2704 ce->sense_length, ce->residual_count); 2705 bzero(&csio->sense_data, SSD_FULL_SIZE); 2706 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2707 csio->sense_len = ce->sense_length; 2708 csio->resid = ce->residual_count; 2709 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2710 #ifdef CISS_DEBUG 2711 { 2712 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2713 debug(0, "sense key %x", sns->flags & SSD_KEY); 2714 } 2715 #endif 2716 break; 2717 2718 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2719 debug(0, "SCSI_STATUS_BUSY"); 2720 csio->ccb_h.status = CAM_SCSI_BUSY; 2721 break; 2722 2723 default: 2724 debug(0, "unknown status 0x%x", csio->scsi_status); 2725 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2726 break; 2727 } 2728 2729 /* handle post-command fixup */ 2730 ciss_cam_complete_fixup(sc, csio); 2731 2732 /* tell CAM we're ready for more commands */ 2733 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2734 2735 xpt_done((union ccb *)csio); 2736 ciss_release_request(cr); 2737 } 2738 2739 /******************************************************************************** 2740 * Fix up the result of some commands here. 2741 */ 2742 static void 2743 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2744 { 2745 struct scsi_inquiry_data *inq; 2746 struct ciss_ldrive *cl; 2747 int bus, target; 2748 2749 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2750 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2751 2752 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2753 target = csio->ccb_h.target_id; 2754 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2755 cl = &sc->ciss_logical[bus][target]; 2756 2757 padstr(inq->vendor, "COMPAQ", 8); 2758 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2759 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2760 } 2761 } 2762 2763 2764 /******************************************************************************** 2765 * Find a peripheral attached at (target) 2766 */ 2767 static struct cam_periph * 2768 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2769 { 2770 struct cam_periph *periph; 2771 struct cam_path *path; 2772 int status; 2773 2774 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2775 target, 0); 2776 if (status == CAM_REQ_CMP) { 2777 periph = cam_periph_find(path, NULL); 2778 xpt_free_path(path); 2779 } else { 2780 periph = NULL; 2781 } 2782 return(periph); 2783 } 2784 2785 /******************************************************************************** 2786 * Name the device at (target) 2787 * 2788 * XXX is this strictly correct? 2789 */ 2790 static int 2791 ciss_name_device(struct ciss_softc *sc, int bus, int target) 2792 { 2793 struct cam_periph *periph; 2794 2795 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 2796 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2797 return(0); 2798 } 2799 sc->ciss_logical[bus][target].cl_name[0] = 0; 2800 return(ENOENT); 2801 } 2802 2803 /************************************************************************ 2804 * Periodic status monitoring. 2805 */ 2806 static void 2807 ciss_periodic(void *arg) 2808 { 2809 struct ciss_softc *sc; 2810 2811 debug_called(1); 2812 2813 sc = (struct ciss_softc *)arg; 2814 2815 /* 2816 * Check the adapter heartbeat. 2817 */ 2818 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2819 sc->ciss_heart_attack++; 2820 debug(0, "adapter heart attack in progress 0x%x/%d", 2821 sc->ciss_heartbeat, sc->ciss_heart_attack); 2822 if (sc->ciss_heart_attack == 3) { 2823 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2824 /* XXX should reset adapter here */ 2825 } 2826 } else { 2827 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2828 sc->ciss_heart_attack = 0; 2829 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2830 } 2831 2832 /* 2833 * If the notify event request has died for some reason, or has 2834 * not started yet, restart it. 2835 */ 2836 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2837 debug(0, "(re)starting Event Notify chain"); 2838 ciss_notify_event(sc); 2839 } 2840 2841 /* 2842 * Reschedule. 2843 */ 2844 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2845 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2846 } 2847 2848 /************************************************************************ 2849 * Request a notification response from the adapter. 2850 * 2851 * If (cr) is NULL, this is the first request of the adapter, so 2852 * reset the adapter's message pointer and start with the oldest 2853 * message available. 2854 */ 2855 static void 2856 ciss_notify_event(struct ciss_softc *sc) 2857 { 2858 struct ciss_request *cr; 2859 struct ciss_command *cc; 2860 struct ciss_notify_cdb *cnc; 2861 int error; 2862 2863 debug_called(1); 2864 2865 cr = sc->ciss_periodic_notify; 2866 2867 /* get a request if we don't already have one */ 2868 if (cr == NULL) { 2869 if ((error = ciss_get_request(sc, &cr)) != 0) { 2870 debug(0, "can't get notify event request"); 2871 goto out; 2872 } 2873 sc->ciss_periodic_notify = cr; 2874 cr->cr_complete = ciss_notify_complete; 2875 debug(1, "acquired request %d", cr->cr_tag); 2876 } 2877 2878 /* 2879 * Get a databuffer if we don't already have one, note that the 2880 * adapter command wants a larger buffer than the actual 2881 * structure. 2882 */ 2883 if (cr->cr_data == NULL) { 2884 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2885 debug(0, "can't get notify event request buffer"); 2886 error = ENOMEM; 2887 goto out; 2888 } 2889 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2890 } 2891 2892 /* re-setup the request's command (since we never release it) XXX overkill*/ 2893 ciss_preen_command(cr); 2894 2895 /* (re)build the notify event command */ 2896 cc = CISS_FIND_COMMAND(cr); 2897 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2898 cc->header.address.physical.bus = 0; 2899 cc->header.address.physical.target = 0; 2900 2901 cc->cdb.cdb_length = sizeof(*cnc); 2902 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2903 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2904 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2905 cc->cdb.timeout = 0; /* no timeout, we hope */ 2906 2907 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2908 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2909 cnc->opcode = CISS_OPCODE_READ; 2910 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2911 cnc->timeout = 0; /* no timeout, we hope */ 2912 cnc->synchronous = 0; 2913 cnc->ordered = 0; 2914 cnc->seek_to_oldest = 0; 2915 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 2916 cnc->new_only = 1; 2917 else 2918 cnc->new_only = 0; 2919 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2920 2921 /* submit the request */ 2922 error = ciss_start(cr); 2923 2924 out: 2925 if (error) { 2926 if (cr != NULL) { 2927 if (cr->cr_data != NULL) 2928 free(cr->cr_data, CISS_MALLOC_CLASS); 2929 ciss_release_request(cr); 2930 } 2931 sc->ciss_periodic_notify = NULL; 2932 debug(0, "can't submit notify event request"); 2933 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2934 } else { 2935 debug(1, "notify event submitted"); 2936 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2937 } 2938 } 2939 2940 static void 2941 ciss_notify_complete(struct ciss_request *cr) 2942 { 2943 struct ciss_command *cc; 2944 struct ciss_notify *cn; 2945 struct ciss_softc *sc; 2946 int scsi_status; 2947 int command_status; 2948 debug_called(1); 2949 2950 cc = CISS_FIND_COMMAND(cr); 2951 cn = (struct ciss_notify *)cr->cr_data; 2952 sc = cr->cr_sc; 2953 2954 /* 2955 * Report request results, decode status. 2956 */ 2957 ciss_report_request(cr, &command_status, &scsi_status); 2958 2959 /* 2960 * Abort the chain on a fatal error. 2961 * 2962 * XXX which of these are actually errors? 2963 */ 2964 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2965 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2966 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2967 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2968 ciss_name_command_status(command_status)); 2969 ciss_release_request(cr); 2970 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2971 return; 2972 } 2973 2974 /* 2975 * If the adapter gave us a text message, print it. 2976 */ 2977 if (cn->message[0] != 0) 2978 ciss_printf(sc, "*** %.80s\n", cn->message); 2979 2980 debug(0, "notify event class %d subclass %d detail %d", 2981 cn->class, cn->subclass, cn->detail); 2982 2983 /* 2984 * If the response indicates that the notifier has been aborted, 2985 * release the notifier command. 2986 */ 2987 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2988 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2989 (cn->detail == 1)) { 2990 debug(0, "notifier exiting"); 2991 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2992 ciss_release_request(cr); 2993 sc->ciss_periodic_notify = NULL; 2994 wakeup(&sc->ciss_periodic_notify); 2995 } else { 2996 /* Handle notify events in a kernel thread */ 2997 ciss_enqueue_notify(cr); 2998 sc->ciss_periodic_notify = NULL; 2999 wakeup(&sc->ciss_periodic_notify); 3000 wakeup(&sc->ciss_notify); 3001 } 3002 /* 3003 * Send a new notify event command, if we're not aborting. 3004 */ 3005 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3006 ciss_notify_event(sc); 3007 } 3008 } 3009 3010 /************************************************************************ 3011 * Abort the Notify Event chain. 3012 * 3013 * Note that we can't just abort the command in progress; we have to 3014 * explicitly issue an Abort Notify Event command in order for the 3015 * adapter to clean up correctly. 3016 * 3017 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3018 * the chain will not restart itself. 3019 */ 3020 static int 3021 ciss_notify_abort(struct ciss_softc *sc) 3022 { 3023 struct ciss_request *cr; 3024 struct ciss_command *cc; 3025 struct ciss_notify_cdb *cnc; 3026 int error, s, command_status, scsi_status; 3027 3028 debug_called(1); 3029 3030 cr = NULL; 3031 error = 0; 3032 3033 /* verify that there's an outstanding command */ 3034 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3035 goto out; 3036 3037 /* get a command to issue the abort with */ 3038 if ((error = ciss_get_request(sc, &cr))) 3039 goto out; 3040 3041 /* get a buffer for the result */ 3042 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3043 debug(0, "can't get notify event request buffer"); 3044 error = ENOMEM; 3045 goto out; 3046 } 3047 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3048 3049 /* build the CDB */ 3050 cc = CISS_FIND_COMMAND(cr); 3051 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3052 cc->header.address.physical.bus = 0; 3053 cc->header.address.physical.target = 0; 3054 cc->cdb.cdb_length = sizeof(*cnc); 3055 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3056 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3057 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3058 cc->cdb.timeout = 0; /* no timeout, we hope */ 3059 3060 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3061 bzero(cnc, sizeof(*cnc)); 3062 cnc->opcode = CISS_OPCODE_WRITE; 3063 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3064 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3065 3066 ciss_print_request(cr); 3067 3068 /* 3069 * Submit the request and wait for it to complete. 3070 */ 3071 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3072 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3073 goto out; 3074 } 3075 3076 /* 3077 * Check response. 3078 */ 3079 ciss_report_request(cr, &command_status, &scsi_status); 3080 switch(command_status) { 3081 case CISS_CMD_STATUS_SUCCESS: 3082 break; 3083 case CISS_CMD_STATUS_INVALID_COMMAND: 3084 /* 3085 * Some older adapters don't support the CISS version of this 3086 * command. Fall back to using the BMIC version. 3087 */ 3088 error = ciss_notify_abort_bmic(sc); 3089 if (error != 0) 3090 goto out; 3091 break; 3092 3093 case CISS_CMD_STATUS_TARGET_STATUS: 3094 /* 3095 * This can happen if the adapter thinks there wasn't an outstanding 3096 * Notify Event command but we did. We clean up here. 3097 */ 3098 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3099 if (sc->ciss_periodic_notify != NULL) 3100 ciss_release_request(sc->ciss_periodic_notify); 3101 error = 0; 3102 goto out; 3103 } 3104 /* FALLTHROUGH */ 3105 3106 default: 3107 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3108 ciss_name_command_status(command_status)); 3109 error = EIO; 3110 goto out; 3111 } 3112 3113 /* 3114 * Sleep waiting for the notifier command to complete. Note 3115 * that if it doesn't, we may end up in a bad situation, since 3116 * the adapter may deliver it later. Also note that the adapter 3117 * requires the Notify Event command to be cancelled in order to 3118 * maintain internal bookkeeping. 3119 */ 3120 s = splcam(); 3121 while (sc->ciss_periodic_notify != NULL) { 3122 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3123 if (error == EWOULDBLOCK) { 3124 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3125 break; 3126 } 3127 } 3128 splx(s); 3129 3130 out: 3131 /* release the cancel request */ 3132 if (cr != NULL) { 3133 if (cr->cr_data != NULL) 3134 free(cr->cr_data, CISS_MALLOC_CLASS); 3135 ciss_release_request(cr); 3136 } 3137 if (error == 0) 3138 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3139 return(error); 3140 } 3141 3142 /************************************************************************ 3143 * Abort the Notify Event chain using a BMIC command. 3144 */ 3145 static int 3146 ciss_notify_abort_bmic(struct ciss_softc *sc) 3147 { 3148 struct ciss_request *cr; 3149 int error, command_status; 3150 3151 debug_called(1); 3152 3153 cr = NULL; 3154 error = 0; 3155 3156 /* verify that there's an outstanding command */ 3157 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3158 goto out; 3159 3160 /* 3161 * Build a BMIC command to cancel the Notify on Event command. 3162 * 3163 * Note that we are sending a CISS opcode here. Odd. 3164 */ 3165 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3166 NULL, 0)) != 0) 3167 goto out; 3168 3169 /* 3170 * Submit the request and wait for it to complete. 3171 */ 3172 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3173 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3174 goto out; 3175 } 3176 3177 /* 3178 * Check response. 3179 */ 3180 ciss_report_request(cr, &command_status, NULL); 3181 switch(command_status) { 3182 case CISS_CMD_STATUS_SUCCESS: 3183 break; 3184 default: 3185 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3186 ciss_name_command_status(command_status)); 3187 error = EIO; 3188 goto out; 3189 } 3190 3191 out: 3192 if (cr != NULL) 3193 ciss_release_request(cr); 3194 return(error); 3195 } 3196 3197 /************************************************************************ 3198 * Handle rescanning all the logical volumes when a notify event 3199 * causes the drives to come online or offline. 3200 */ 3201 static void 3202 ciss_notify_rescan_logical(struct ciss_softc *sc) 3203 { 3204 struct ciss_lun_report *cll; 3205 struct ciss_ldrive *ld; 3206 int i, j, ndrives; 3207 3208 /* 3209 * We must rescan all logical volumes to get the right logical 3210 * drive address. 3211 */ 3212 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3213 CISS_MAX_LOGICAL); 3214 if (cll == NULL) 3215 return; 3216 3217 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3218 3219 /* 3220 * Delete any of the drives which were destroyed by the 3221 * firmware. 3222 */ 3223 for (i = 0; i < sc->ciss_max_bus_number; i++) { 3224 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3225 ld = &sc->ciss_logical[i][j]; 3226 3227 if (ld->cl_update == 0) 3228 continue; 3229 3230 if (ld->cl_status != CISS_LD_ONLINE) { 3231 ciss_cam_rescan_target(sc, i, j); 3232 ld->cl_update = 0; 3233 if (ld->cl_ldrive) 3234 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3235 if (ld->cl_lstatus) 3236 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3237 3238 ld->cl_ldrive = NULL; 3239 ld->cl_lstatus = NULL; 3240 } 3241 } 3242 } 3243 3244 /* 3245 * Scan for new drives. 3246 */ 3247 for (i = 0; i < ndrives; i++) { 3248 int bus, target; 3249 3250 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3251 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3252 ld = &sc->ciss_logical[bus][target]; 3253 3254 if (ld->cl_update == 0) 3255 continue; 3256 3257 ld->cl_address = cll->lun[i]; 3258 ld->cl_controller = &sc->ciss_controllers[bus]; 3259 if (ciss_identify_logical(sc, ld) == 0) { 3260 ciss_cam_rescan_target(sc, bus, target); 3261 } 3262 } 3263 free(cll, CISS_MALLOC_CLASS); 3264 } 3265 3266 /************************************************************************ 3267 * Handle a notify event relating to the status of a logical drive. 3268 * 3269 * XXX need to be able to defer some of these to properly handle 3270 * calling the "ID Physical drive" command, unless the 'extended' 3271 * drive IDs are always in BIG_MAP format. 3272 */ 3273 static void 3274 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3275 { 3276 struct ciss_ldrive *ld; 3277 int ostatus, bus, target; 3278 3279 debug_called(2); 3280 3281 bus = cn->device.physical.bus; 3282 target = cn->data.logical_status.logical_drive; 3283 ld = &sc->ciss_logical[bus][target]; 3284 3285 switch (cn->subclass) { 3286 case CISS_NOTIFY_LOGICAL_STATUS: 3287 switch (cn->detail) { 3288 case 0: 3289 ciss_name_device(sc, bus, target); 3290 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3291 cn->data.logical_status.logical_drive, ld->cl_name, 3292 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3293 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3294 cn->data.logical_status.spare_state, 3295 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3296 3297 /* 3298 * Update our idea of the drive's status. 3299 */ 3300 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3301 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3302 if (ld->cl_lstatus != NULL) 3303 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3304 3305 /* 3306 * Have CAM rescan the drive if its status has changed. 3307 */ 3308 if (ostatus != ld->cl_status) { 3309 ld->cl_update = 1; 3310 ciss_notify_rescan_logical(sc); 3311 } 3312 3313 break; 3314 3315 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3316 ciss_name_device(sc, bus, target); 3317 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3318 cn->data.logical_status.logical_drive, ld->cl_name); 3319 ciss_accept_media(sc, ld, 1); 3320 break; 3321 3322 case 2: 3323 case 3: 3324 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3325 cn->data.rebuild_aborted.logical_drive, 3326 ld->cl_name, 3327 (cn->detail == 2) ? "read" : "write"); 3328 break; 3329 } 3330 break; 3331 3332 case CISS_NOTIFY_LOGICAL_ERROR: 3333 if (cn->detail == 0) { 3334 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3335 cn->data.io_error.logical_drive, 3336 ld->cl_name, 3337 cn->data.io_error.failure_bus, 3338 cn->data.io_error.failure_drive); 3339 /* XXX should we take the drive down at this point, or will we be told? */ 3340 } 3341 break; 3342 3343 case CISS_NOTIFY_LOGICAL_SURFACE: 3344 if (cn->detail == 0) 3345 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3346 cn->data.consistency_completed.logical_drive, 3347 ld->cl_name); 3348 break; 3349 } 3350 } 3351 3352 /************************************************************************ 3353 * Handle a notify event relating to the status of a physical drive. 3354 */ 3355 static void 3356 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3357 { 3358 } 3359 3360 /************************************************************************ 3361 * Handle deferred processing of notify events. Notify events may need 3362 * sleep which is unsafe during an interrupt. 3363 */ 3364 static void 3365 ciss_notify_thread(void *arg) 3366 { 3367 struct ciss_softc *sc; 3368 struct ciss_request *cr; 3369 struct ciss_notify *cn; 3370 int s; 3371 3372 #if __FreeBSD_version >= 500000 3373 mtx_lock(&Giant); 3374 #endif 3375 sc = (struct ciss_softc *)arg; 3376 3377 s = splcam(); 3378 for (;;) { 3379 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3380 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3381 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3382 } 3383 3384 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3385 break; 3386 3387 cr = ciss_dequeue_notify(sc); 3388 splx(s); 3389 3390 if (cr == NULL) 3391 panic("cr null"); 3392 cn = (struct ciss_notify *)cr->cr_data; 3393 3394 switch (cn->class) { 3395 case CISS_NOTIFY_LOGICAL: 3396 ciss_notify_logical(sc, cn); 3397 break; 3398 case CISS_NOTIFY_PHYSICAL: 3399 ciss_notify_physical(sc, cn); 3400 break; 3401 } 3402 3403 ciss_release_request(cr); 3404 3405 s = splcam(); 3406 } 3407 sc->ciss_notify_thread = NULL; 3408 wakeup(&sc->ciss_notify_thread); 3409 splx(s); 3410 3411 #if __FreeBSD_version >= 500000 3412 mtx_unlock(&Giant); 3413 #endif 3414 kthread_exit(0); 3415 } 3416 3417 /************************************************************************ 3418 * Start the notification kernel thread. 3419 */ 3420 static void 3421 ciss_spawn_notify_thread(struct ciss_softc *sc) 3422 { 3423 3424 #if __FreeBSD_version > 500005 3425 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3426 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3427 device_get_unit(sc->ciss_dev))) 3428 #else 3429 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3430 &sc->ciss_notify_thread, "ciss_notify%d", 3431 device_get_unit(sc->ciss_dev))) 3432 #endif 3433 panic("Could not create notify thread\n"); 3434 } 3435 3436 /************************************************************************ 3437 * Kill the notification kernel thread. 3438 */ 3439 static void 3440 ciss_kill_notify_thread(struct ciss_softc *sc) 3441 { 3442 3443 if (sc->ciss_notify_thread == NULL) 3444 return; 3445 3446 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3447 wakeup(&sc->ciss_notify); 3448 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3449 } 3450 3451 /************************************************************************ 3452 * Print a request. 3453 */ 3454 static void 3455 ciss_print_request(struct ciss_request *cr) 3456 { 3457 struct ciss_softc *sc; 3458 struct ciss_command *cc; 3459 int i; 3460 3461 sc = cr->cr_sc; 3462 cc = CISS_FIND_COMMAND(cr); 3463 3464 ciss_printf(sc, "REQUEST @ %p\n", cr); 3465 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3466 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3467 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3468 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3469 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3470 switch(cc->header.address.mode.mode) { 3471 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3472 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3473 ciss_printf(sc, " physical bus %d target %d\n", 3474 cc->header.address.physical.bus, cc->header.address.physical.target); 3475 break; 3476 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3477 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3478 break; 3479 } 3480 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3481 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3482 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3483 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3484 cc->cdb.cdb_length, 3485 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3486 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3487 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3488 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3489 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3490 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3491 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3492 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3493 3494 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3495 /* XXX print error info */ 3496 } else { 3497 /* since we don't use chained s/g, don't support it here */ 3498 for (i = 0; i < cc->header.sg_in_list; i++) { 3499 if ((i % 4) == 0) 3500 ciss_printf(sc, " "); 3501 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3502 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3503 printf("\n"); 3504 } 3505 } 3506 } 3507 3508 /************************************************************************ 3509 * Print information about the status of a logical drive. 3510 */ 3511 static void 3512 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3513 { 3514 int bus, target, i; 3515 3516 if (ld->cl_lstatus == NULL) { 3517 printf("does not exist\n"); 3518 return; 3519 } 3520 3521 /* print drive status */ 3522 switch(ld->cl_lstatus->status) { 3523 case CISS_LSTATUS_OK: 3524 printf("online\n"); 3525 break; 3526 case CISS_LSTATUS_INTERIM_RECOVERY: 3527 printf("in interim recovery mode\n"); 3528 break; 3529 case CISS_LSTATUS_READY_RECOVERY: 3530 printf("ready to begin recovery\n"); 3531 break; 3532 case CISS_LSTATUS_RECOVERING: 3533 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3534 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3535 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3536 bus, target, ld->cl_lstatus->blocks_to_recover); 3537 break; 3538 case CISS_LSTATUS_EXPANDING: 3539 printf("being expanded, %u blocks remaining\n", 3540 ld->cl_lstatus->blocks_to_recover); 3541 break; 3542 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3543 printf("queued for expansion\n"); 3544 break; 3545 case CISS_LSTATUS_FAILED: 3546 printf("queued for expansion\n"); 3547 break; 3548 case CISS_LSTATUS_WRONG_PDRIVE: 3549 printf("wrong physical drive inserted\n"); 3550 break; 3551 case CISS_LSTATUS_MISSING_PDRIVE: 3552 printf("missing a needed physical drive\n"); 3553 break; 3554 case CISS_LSTATUS_BECOMING_READY: 3555 printf("becoming ready\n"); 3556 break; 3557 } 3558 3559 /* print failed physical drives */ 3560 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3561 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3562 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3563 if (bus == -1) 3564 continue; 3565 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3566 ld->cl_lstatus->drive_failure_map[i]); 3567 } 3568 } 3569 3570 #ifdef CISS_DEBUG 3571 /************************************************************************ 3572 * Print information about the controller/driver. 3573 */ 3574 static void 3575 ciss_print_adapter(struct ciss_softc *sc) 3576 { 3577 int i, j; 3578 3579 ciss_printf(sc, "ADAPTER:\n"); 3580 for (i = 0; i < CISSQ_COUNT; i++) { 3581 ciss_printf(sc, "%s %d/%d\n", 3582 i == 0 ? "free" : 3583 i == 1 ? "busy" : "complete", 3584 sc->ciss_qstat[i].q_length, 3585 sc->ciss_qstat[i].q_max); 3586 } 3587 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3588 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3589 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3590 3591 for (i = 0; i < sc->ciss_max_bus_number; i++) { 3592 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3593 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3594 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3595 } 3596 } 3597 3598 for (i = 1; i < sc->ciss_max_requests; i++) 3599 ciss_print_request(sc->ciss_request + i); 3600 } 3601 3602 /* DDB hook */ 3603 static void 3604 ciss_print0(void) 3605 { 3606 struct ciss_softc *sc; 3607 3608 sc = devclass_get_softc(devclass_find("ciss"), 0); 3609 if (sc == NULL) { 3610 printf("no ciss controllers\n"); 3611 } else { 3612 ciss_print_adapter(sc); 3613 } 3614 } 3615 #endif 3616 3617 /************************************************************************ 3618 * Return a name for a logical drive status value. 3619 */ 3620 static const char * 3621 ciss_name_ldrive_status(int status) 3622 { 3623 switch (status) { 3624 case CISS_LSTATUS_OK: 3625 return("OK"); 3626 case CISS_LSTATUS_FAILED: 3627 return("failed"); 3628 case CISS_LSTATUS_NOT_CONFIGURED: 3629 return("not configured"); 3630 case CISS_LSTATUS_INTERIM_RECOVERY: 3631 return("interim recovery"); 3632 case CISS_LSTATUS_READY_RECOVERY: 3633 return("ready for recovery"); 3634 case CISS_LSTATUS_RECOVERING: 3635 return("recovering"); 3636 case CISS_LSTATUS_WRONG_PDRIVE: 3637 return("wrong physical drive inserted"); 3638 case CISS_LSTATUS_MISSING_PDRIVE: 3639 return("missing physical drive"); 3640 case CISS_LSTATUS_EXPANDING: 3641 return("expanding"); 3642 case CISS_LSTATUS_BECOMING_READY: 3643 return("becoming ready"); 3644 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3645 return("queued for expansion"); 3646 } 3647 return("unknown status"); 3648 } 3649 3650 /************************************************************************ 3651 * Return an online/offline/nonexistent value for a logical drive 3652 * status value. 3653 */ 3654 static int 3655 ciss_decode_ldrive_status(int status) 3656 { 3657 switch(status) { 3658 case CISS_LSTATUS_NOT_CONFIGURED: 3659 return(CISS_LD_NONEXISTENT); 3660 3661 case CISS_LSTATUS_OK: 3662 case CISS_LSTATUS_INTERIM_RECOVERY: 3663 case CISS_LSTATUS_READY_RECOVERY: 3664 case CISS_LSTATUS_RECOVERING: 3665 case CISS_LSTATUS_EXPANDING: 3666 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3667 return(CISS_LD_ONLINE); 3668 3669 case CISS_LSTATUS_FAILED: 3670 case CISS_LSTATUS_WRONG_PDRIVE: 3671 case CISS_LSTATUS_MISSING_PDRIVE: 3672 case CISS_LSTATUS_BECOMING_READY: 3673 default: 3674 return(CISS_LD_OFFLINE); 3675 } 3676 } 3677 3678 3679 /************************************************************************ 3680 * Return a name for a logical drive's organisation. 3681 */ 3682 static const char * 3683 ciss_name_ldrive_org(int org) 3684 { 3685 switch(org) { 3686 case CISS_LDRIVE_RAID0: 3687 return("RAID 0"); 3688 case CISS_LDRIVE_RAID1: 3689 return("RAID 1"); 3690 case CISS_LDRIVE_RAID4: 3691 return("RAID 4"); 3692 case CISS_LDRIVE_RAID5: 3693 return("RAID 5"); 3694 case CISS_LDRIVE_RAID51: 3695 return("RAID 5+1"); 3696 case CISS_LDRIVE_RAIDADG: 3697 return("RAID ADG"); 3698 } 3699 return("unkown"); 3700 } 3701 3702 /************************************************************************ 3703 * Return a name for a command status value. 3704 */ 3705 static const char * 3706 ciss_name_command_status(int status) 3707 { 3708 switch(status) { 3709 case CISS_CMD_STATUS_SUCCESS: 3710 return("success"); 3711 case CISS_CMD_STATUS_TARGET_STATUS: 3712 return("target status"); 3713 case CISS_CMD_STATUS_DATA_UNDERRUN: 3714 return("data underrun"); 3715 case CISS_CMD_STATUS_DATA_OVERRUN: 3716 return("data overrun"); 3717 case CISS_CMD_STATUS_INVALID_COMMAND: 3718 return("invalid command"); 3719 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3720 return("protocol error"); 3721 case CISS_CMD_STATUS_HARDWARE_ERROR: 3722 return("hardware error"); 3723 case CISS_CMD_STATUS_CONNECTION_LOST: 3724 return("connection lost"); 3725 case CISS_CMD_STATUS_ABORTED: 3726 return("aborted"); 3727 case CISS_CMD_STATUS_ABORT_FAILED: 3728 return("abort failed"); 3729 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3730 return("unsolicited abort"); 3731 case CISS_CMD_STATUS_TIMEOUT: 3732 return("timeout"); 3733 case CISS_CMD_STATUS_UNABORTABLE: 3734 return("unabortable"); 3735 } 3736 return("unknown status"); 3737 } 3738 3739 /************************************************************************ 3740 * Handle an open on the control device. 3741 */ 3742 static int 3743 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3744 { 3745 struct ciss_softc *sc; 3746 3747 debug_called(1); 3748 3749 sc = (struct ciss_softc *)dev->si_drv1; 3750 3751 /* we might want to veto if someone already has us open */ 3752 3753 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3754 return(0); 3755 } 3756 3757 /************************************************************************ 3758 * Handle the last close on the control device. 3759 */ 3760 static int 3761 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3762 { 3763 struct ciss_softc *sc; 3764 3765 debug_called(1); 3766 3767 sc = (struct ciss_softc *)dev->si_drv1; 3768 3769 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3770 return (0); 3771 } 3772 3773 /******************************************************************************** 3774 * Handle adapter-specific control operations. 3775 * 3776 * Note that the API here is compatible with the Linux driver, in order to 3777 * simplify the porting of Compaq's userland tools. 3778 */ 3779 static int 3780 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3781 { 3782 struct ciss_softc *sc; 3783 int error; 3784 3785 debug_called(1); 3786 3787 sc = (struct ciss_softc *)dev->si_drv1; 3788 error = 0; 3789 3790 switch(cmd) { 3791 case CCISS_GETPCIINFO: 3792 { 3793 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3794 3795 pis->bus = pci_get_bus(sc->ciss_dev); 3796 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3797 pis->board_id = pci_get_devid(sc->ciss_dev); 3798 3799 break; 3800 } 3801 3802 case CCISS_GETINTINFO: 3803 { 3804 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3805 3806 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3807 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3808 3809 break; 3810 } 3811 3812 case CCISS_SETINTINFO: 3813 { 3814 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3815 3816 if ((cis->delay == 0) && (cis->count == 0)) { 3817 error = EINVAL; 3818 break; 3819 } 3820 3821 /* 3822 * XXX apparently this is only safe if the controller is idle, 3823 * we should suspend it before doing this. 3824 */ 3825 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3826 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3827 3828 if (ciss_update_config(sc)) 3829 error = EIO; 3830 3831 /* XXX resume the controller here */ 3832 break; 3833 } 3834 3835 case CCISS_GETNODENAME: 3836 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3837 sizeof(NodeName_type)); 3838 break; 3839 3840 case CCISS_SETNODENAME: 3841 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3842 sizeof(NodeName_type)); 3843 if (ciss_update_config(sc)) 3844 error = EIO; 3845 break; 3846 3847 case CCISS_GETHEARTBEAT: 3848 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3849 break; 3850 3851 case CCISS_GETBUSTYPES: 3852 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3853 break; 3854 3855 case CCISS_GETFIRMVER: 3856 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3857 sizeof(FirmwareVer_type)); 3858 break; 3859 3860 case CCISS_GETDRIVERVER: 3861 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3862 break; 3863 3864 case CCISS_REVALIDVOLS: 3865 /* 3866 * This is a bit ugly; to do it "right" we really need 3867 * to find any disks that have changed, kick CAM off them, 3868 * then rescan only these disks. It'd be nice if they 3869 * a) told us which disk(s) they were going to play with, 3870 * and b) which ones had arrived. 8( 3871 */ 3872 break; 3873 3874 case CCISS_PASSTHRU: 3875 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3876 break; 3877 3878 default: 3879 debug(0, "unknown ioctl 0x%lx", cmd); 3880 3881 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3882 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3883 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3884 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3885 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3886 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3887 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3888 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3889 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3890 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3891 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3892 3893 error = ENOIOCTL; 3894 break; 3895 } 3896 3897 return(error); 3898 } 3899