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