ciss.c revision 126076
1/*- 2 * Copyright (c) 2001 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/ciss/ciss.c 126076 2004-02-21 19:42:58Z phk $ 27 */ 28 29/* 30 * Common Interface for SCSI-3 Support driver. 31 * 32 * CISS claims to provide a common interface between a generic SCSI 33 * transport and an intelligent host adapter. 34 * 35 * This driver supports CISS as defined in the document "CISS Command 36 * Interface for SCSI-3 Support Open Specification", Version 1.04, 37 * Valence Number 1, dated 20001127, produced by Compaq Computer 38 * Corporation. This document appears to be a hastily and somewhat 39 * arbitrarlily cut-down version of a larger (and probably even more 40 * chaotic and inconsistent) Compaq internal document. Various 41 * details were also gleaned from Compaq's "cciss" driver for Linux. 42 * 43 * We provide a shim layer between the CISS interface and CAM, 44 * offloading most of the queueing and being-a-disk chores onto CAM. 45 * Entry to the driver is via the PCI bus attachment (ciss_probe, 46 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 47 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 48 * citizens and we have to fake up some responses to get reasonable 49 * behaviour out of them. In addition, the CISS command set is by no 50 * means adequate to support the functionality of a RAID controller, 51 * and thus the supported Compaq adapters utilise portions of the 52 * control protocol from earlier Compaq adapter families. 53 * 54 * Note that we only support the "simple" transport layer over PCI. 55 * This interface (ab)uses the I2O register set (specifically the post 56 * queues) to exchange commands with the adapter. Other interfaces 57 * are available, but we aren't supposed to know about them, and it is 58 * dubious whether they would provide major performance improvements 59 * except under extreme load. 60 * 61 * Currently the only supported CISS adapters are the Compaq Smart 62 * Array 5* series (5300, 5i, 532). Even with only three adapters, 63 * Compaq still manage to have interface variations. 64 * 65 * 66 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 67 * well as Paul Saab at Yahoo! for their assistance in making this 68 * driver happen. 69 */ 70 71#include <sys/param.h> 72#include <sys/systm.h> 73#include <sys/malloc.h> 74#include <sys/kernel.h> 75#include <sys/bus.h> 76#include <sys/conf.h> 77#include <sys/stat.h> 78 79#include <cam/cam.h> 80#include <cam/cam_ccb.h> 81#include <cam/cam_periph.h> 82#include <cam/cam_sim.h> 83#include <cam/cam_xpt_sim.h> 84#include <cam/scsi/scsi_all.h> 85#include <cam/scsi/scsi_message.h> 86 87#include <machine/clock.h> 88#include <machine/bus_memio.h> 89#include <machine/bus.h> 90#include <machine/endian.h> 91#include <machine/resource.h> 92#include <sys/rman.h> 93 94#include <dev/pci/pcireg.h> 95#include <dev/pci/pcivar.h> 96 97#include <dev/ciss/cissreg.h> 98#include <dev/ciss/cissvar.h> 99#include <dev/ciss/cissio.h> 100 101MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 102 103/* pci interface */ 104static int ciss_lookup(device_t dev); 105static int ciss_probe(device_t dev); 106static int ciss_attach(device_t dev); 107static int ciss_detach(device_t dev); 108static int ciss_shutdown(device_t dev); 109 110/* (de)initialisation functions, control wrappers */ 111static int ciss_init_pci(struct ciss_softc *sc); 112static int ciss_wait_adapter(struct ciss_softc *sc); 113static int ciss_flush_adapter(struct ciss_softc *sc); 114static int ciss_init_requests(struct ciss_softc *sc); 115static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 116 int nseg, int error); 117static int ciss_identify_adapter(struct ciss_softc *sc); 118static int ciss_init_logical(struct ciss_softc *sc); 119static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 120static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 121static int ciss_update_config(struct ciss_softc *sc); 122static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 123static void ciss_accept_media_complete(struct ciss_request *cr); 124static void ciss_free(struct ciss_softc *sc); 125 126/* request submission/completion */ 127static int ciss_start(struct ciss_request *cr); 128static void ciss_done(struct ciss_softc *sc); 129static void ciss_intr(void *arg); 130static void ciss_complete(struct ciss_softc *sc); 131static int ciss_report_request(struct ciss_request *cr, int *command_status, 132 int *scsi_status); 133static int ciss_synch_request(struct ciss_request *cr, int timeout); 134static int ciss_poll_request(struct ciss_request *cr, int timeout); 135static int ciss_wait_request(struct ciss_request *cr, int timeout); 136#if 0 137static int ciss_abort_request(struct ciss_request *cr); 138#endif 139 140/* request queueing */ 141static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 142static void ciss_preen_command(struct ciss_request *cr); 143static void ciss_release_request(struct ciss_request *cr); 144 145/* request helpers */ 146static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 147 int opcode, void **bufp, size_t bufsize); 148static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 149 150/* DMA map/unmap */ 151static int ciss_map_request(struct ciss_request *cr); 152static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 153 int nseg, int error); 154static void ciss_unmap_request(struct ciss_request *cr); 155 156/* CAM interface */ 157static int ciss_cam_init(struct ciss_softc *sc); 158static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 159static void ciss_cam_rescan_all(struct ciss_softc *sc); 160static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 161static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 162static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 163static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 164static void ciss_cam_poll(struct cam_sim *sim); 165static void ciss_cam_complete(struct ciss_request *cr); 166static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 167static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 168static int ciss_name_device(struct ciss_softc *sc, int target); 169 170/* periodic status monitoring */ 171static void ciss_periodic(void *arg); 172static void ciss_notify_event(struct ciss_softc *sc); 173static void ciss_notify_complete(struct ciss_request *cr); 174static int ciss_notify_abort(struct ciss_softc *sc); 175static int ciss_notify_abort_bmic(struct ciss_softc *sc); 176static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 177static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 178 179/* debugging output */ 180static void ciss_print_request(struct ciss_request *cr); 181static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 182static const char *ciss_name_ldrive_status(int status); 183static int ciss_decode_ldrive_status(int status); 184static const char *ciss_name_ldrive_org(int org); 185static const char *ciss_name_command_status(int status); 186 187/* 188 * PCI bus interface. 189 */ 190static device_method_t ciss_methods[] = { 191 /* Device interface */ 192 DEVMETHOD(device_probe, ciss_probe), 193 DEVMETHOD(device_attach, ciss_attach), 194 DEVMETHOD(device_detach, ciss_detach), 195 DEVMETHOD(device_shutdown, ciss_shutdown), 196 { 0, 0 } 197}; 198 199static driver_t ciss_pci_driver = { 200 "ciss", 201 ciss_methods, 202 sizeof(struct ciss_softc) 203}; 204 205static devclass_t ciss_devclass; 206DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 207 208/* 209 * Control device interface. 210 */ 211static d_open_t ciss_open; 212static d_close_t ciss_close; 213static d_ioctl_t ciss_ioctl; 214 215 216static struct cdevsw ciss_cdevsw = { 217 .d_open = ciss_open, 218 .d_close = ciss_close, 219 .d_ioctl = ciss_ioctl, 220 .d_name = "ciss", 221}; 222 223/************************************************************************ 224 * CISS adapters amazingly don't have a defined programming interface 225 * value. (One could say some very despairing things about PCI and 226 * people just not getting the general idea.) So we are forced to 227 * stick with matching against subvendor/subdevice, and thus have to 228 * be updated for every new CISS adapter that appears. 229 */ 230#define CISS_BOARD_SA5 (1<<0) 231#define CISS_BOARD_SA5B (1<<1) 232 233static struct 234{ 235 u_int16_t subvendor; 236 u_int16_t subdevice; 237 int flags; 238 char *desc; 239} ciss_vendor_data[] = { 240 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 241 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 242 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 243 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 244 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 245 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 246 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 247 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 248 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 249 { 0, 0, 0, NULL } 250}; 251 252/************************************************************************ 253 * Find a match for the device in our list of known adapters. 254 */ 255static int 256ciss_lookup(device_t dev) 257{ 258 int i; 259 260 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 261 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 262 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 263 return(i); 264 } 265 return(-1); 266} 267 268/************************************************************************ 269 * Match a known CISS adapter. 270 */ 271static int 272ciss_probe(device_t dev) 273{ 274 int i; 275 276 i = ciss_lookup(dev); 277 if (i != -1) { 278 device_set_desc(dev, ciss_vendor_data[i].desc); 279 return(-10); 280 } 281 return(ENOENT); 282} 283 284/************************************************************************ 285 * Attach the driver to this adapter. 286 */ 287static int 288ciss_attach(device_t dev) 289{ 290 struct ciss_softc *sc; 291 int i, error; 292 293 debug_called(1); 294 295#ifdef CISS_DEBUG 296 /* print structure/union sizes */ 297 debug_struct(ciss_command); 298 debug_struct(ciss_header); 299 debug_union(ciss_device_address); 300 debug_struct(ciss_cdb); 301 debug_struct(ciss_report_cdb); 302 debug_struct(ciss_notify_cdb); 303 debug_struct(ciss_notify); 304 debug_struct(ciss_message_cdb); 305 debug_struct(ciss_error_info_pointer); 306 debug_struct(ciss_error_info); 307 debug_struct(ciss_sg_entry); 308 debug_struct(ciss_config_table); 309 debug_struct(ciss_bmic_cdb); 310 debug_struct(ciss_bmic_id_ldrive); 311 debug_struct(ciss_bmic_id_lstatus); 312 debug_struct(ciss_bmic_id_table); 313 debug_struct(ciss_bmic_id_pdrive); 314 debug_struct(ciss_bmic_blink_pdrive); 315 debug_struct(ciss_bmic_flush_cache); 316 debug_const(CISS_MAX_REQUESTS); 317 debug_const(CISS_MAX_LOGICAL); 318 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 319 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 320 debug_const(CISS_COMMAND_ALLOC_SIZE); 321 debug_const(CISS_COMMAND_SG_LENGTH); 322 323 debug_type(cciss_pci_info_struct); 324 debug_type(cciss_coalint_struct); 325 debug_type(cciss_coalint_struct); 326 debug_type(NodeName_type); 327 debug_type(NodeName_type); 328 debug_type(Heartbeat_type); 329 debug_type(BusTypes_type); 330 debug_type(FirmwareVer_type); 331 debug_type(DriverVer_type); 332 debug_type(IOCTL_Command_struct); 333#endif 334 335 sc = device_get_softc(dev); 336 sc->ciss_dev = dev; 337 338 /* 339 * Work out adapter type. 340 */ 341 i = ciss_lookup(dev); 342 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 343 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 344 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 345 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 346 } else { 347 /* really an error on our part */ 348 ciss_printf(sc, "unable to determine hardware type\n"); 349 error = ENXIO; 350 goto out; 351 } 352 353 /* 354 * Do PCI-specific init. 355 */ 356 if ((error = ciss_init_pci(sc)) != 0) 357 goto out; 358 359 /* 360 * Initialise driver queues. 361 */ 362 ciss_initq_free(sc); 363 ciss_initq_busy(sc); 364 ciss_initq_complete(sc); 365 366 /* 367 * Initialise command/request pool. 368 */ 369 if ((error = ciss_init_requests(sc)) != 0) 370 goto out; 371 372 /* 373 * Get adapter information. 374 */ 375 if ((error = ciss_identify_adapter(sc)) != 0) 376 goto out; 377 378 /* 379 * Build our private table of logical devices. 380 */ 381 if ((error = ciss_init_logical(sc)) != 0) 382 goto out; 383 384 /* 385 * Enable interrupts so that the CAM scan can complete. 386 */ 387 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 388 389 /* 390 * Initialise the CAM interface. 391 */ 392 if ((error = ciss_cam_init(sc)) != 0) 393 goto out; 394 395 /* 396 * Start the heartbeat routine and event chain. 397 */ 398 ciss_periodic(sc); 399 400 /* 401 * Create the control device. 402 */ 403 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 404 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 405 "ciss%d", device_get_unit(sc->ciss_dev)); 406 sc->ciss_dev_t->si_drv1 = sc; 407 408 /* 409 * The adapter is running; synchronous commands can now sleep 410 * waiting for an interrupt to signal completion. 411 */ 412 sc->ciss_flags |= CISS_FLAG_RUNNING; 413 414 error = 0; 415 out: 416 if (error != 0) 417 ciss_free(sc); 418 return(error); 419} 420 421/************************************************************************ 422 * Detach the driver from this adapter. 423 */ 424static int 425ciss_detach(device_t dev) 426{ 427 struct ciss_softc *sc = device_get_softc(dev); 428 429 debug_called(1); 430 431 /* flush adapter cache */ 432 ciss_flush_adapter(sc); 433 434 destroy_dev(sc->ciss_dev_t); 435 436 /* release all resources */ 437 ciss_free(sc); 438 439 return(0); 440 441} 442 443/************************************************************************ 444 * Prepare adapter for system shutdown. 445 */ 446static int 447ciss_shutdown(device_t dev) 448{ 449 struct ciss_softc *sc = device_get_softc(dev); 450 451 debug_called(1); 452 453 /* flush adapter cache */ 454 ciss_flush_adapter(sc); 455 456 return(0); 457} 458 459/************************************************************************ 460 * Perform PCI-specific attachment actions. 461 */ 462static int 463ciss_init_pci(struct ciss_softc *sc) 464{ 465 uintptr_t cbase, csize, cofs; 466 int error; 467 468 debug_called(1); 469 470 /* 471 * Allocate register window first (we need this to find the config 472 * struct). 473 */ 474 error = ENXIO; 475 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 476 if ((sc->ciss_regs_resource = 477 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 478 0, ~0, 1, RF_ACTIVE)) == NULL) { 479 ciss_printf(sc, "can't allocate register window\n"); 480 return(ENXIO); 481 } 482 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 483 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 484 485 /* 486 * Find the BAR holding the config structure. If it's not the one 487 * we already mapped for registers, map it too. 488 */ 489 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 490 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 491 if ((sc->ciss_cfg_resource = 492 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 493 0, ~0, 1, RF_ACTIVE)) == NULL) { 494 ciss_printf(sc, "can't allocate config window\n"); 495 return(ENXIO); 496 } 497 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 498 csize = rman_get_end(sc->ciss_cfg_resource) - 499 rman_get_start(sc->ciss_cfg_resource) + 1; 500 } else { 501 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 502 csize = rman_get_end(sc->ciss_regs_resource) - 503 rman_get_start(sc->ciss_regs_resource) + 1; 504 } 505 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 506 507 /* 508 * Use the base/size/offset values we just calculated to 509 * sanity-check the config structure. If it's OK, point to it. 510 */ 511 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 512 ciss_printf(sc, "config table outside window\n"); 513 return(ENXIO); 514 } 515 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 516 debug(1, "config struct at %p", sc->ciss_cfg); 517 518 /* 519 * Validate the config structure. If we supported other transport 520 * methods, we could select amongst them at this point in time. 521 */ 522 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 523 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 524 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 525 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 526 return(ENXIO); 527 } 528 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 529 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 530 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 531 sc->ciss_cfg->valence); 532 return(ENXIO); 533 } 534 535 /* 536 * Put the board into simple mode, and tell it we're using the low 537 * 4GB of RAM. Set the default interrupt coalescing options. 538 */ 539 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 540 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 541 return(ENXIO); 542 } 543 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 544 sc->ciss_cfg->command_physlimit = 0; 545 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 546 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 547 548 if (ciss_update_config(sc)) { 549 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 550 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 551 return(ENXIO); 552 } 553 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 554 ciss_printf(sc, 555 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 556 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 557 return(ENXIO); 558 } 559 560 /* 561 * Wait for the adapter to come ready. 562 */ 563 if ((error = ciss_wait_adapter(sc)) != 0) 564 return(error); 565 566 /* 567 * Turn off interrupts before we go routing anything. 568 */ 569 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 570 571 /* 572 * Allocate and set up our interrupt. 573 */ 574 sc->ciss_irq_rid = 0; 575 if ((sc->ciss_irq_resource = 576 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 577 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 578 ciss_printf(sc, "can't allocate interrupt\n"); 579 return(ENXIO); 580 } 581 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 582 &sc->ciss_intr)) { 583 ciss_printf(sc, "can't set up interrupt\n"); 584 return(ENXIO); 585 } 586 587 /* 588 * Allocate the parent bus DMA tag appropriate for our PCI 589 * interface. 590 * 591 * Note that "simple" adapters can only address within a 32-bit 592 * span. 593 */ 594 if (bus_dma_tag_create(NULL, /* parent */ 595 1, 0, /* alignment, boundary */ 596 BUS_SPACE_MAXADDR, /* lowaddr */ 597 BUS_SPACE_MAXADDR, /* highaddr */ 598 NULL, NULL, /* filter, filterarg */ 599 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 600 CISS_COMMAND_SG_LENGTH, /* nsegments */ 601 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 602 BUS_DMA_ALLOCNOW, /* flags */ 603 NULL, NULL, /* lockfunc, lockarg */ 604 &sc->ciss_parent_dmat)) { 605 ciss_printf(sc, "can't allocate parent DMA tag\n"); 606 return(ENOMEM); 607 } 608 609 /* 610 * Create DMA tag for mapping buffers into adapter-addressable 611 * space. 612 */ 613 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 614 1, 0, /* alignment, boundary */ 615 BUS_SPACE_MAXADDR, /* lowaddr */ 616 BUS_SPACE_MAXADDR, /* highaddr */ 617 NULL, NULL, /* filter, filterarg */ 618 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 619 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 620 0, /* flags */ 621 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 622 &sc->ciss_buffer_dmat)) { 623 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 624 return(ENOMEM); 625 } 626 return(0); 627} 628 629/************************************************************************ 630 * Wait for the adapter to come ready. 631 */ 632static int 633ciss_wait_adapter(struct ciss_softc *sc) 634{ 635 int i; 636 637 debug_called(1); 638 639 /* 640 * Wait for the adapter to come ready. 641 */ 642 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 643 ciss_printf(sc, "waiting for adapter to come ready...\n"); 644 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 645 DELAY(1000000); /* one second */ 646 if (i > 30) { 647 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 648 return(EIO); 649 } 650 } 651 } 652 return(0); 653} 654 655/************************************************************************ 656 * Flush the adapter cache. 657 */ 658static int 659ciss_flush_adapter(struct ciss_softc *sc) 660{ 661 struct ciss_request *cr; 662 struct ciss_bmic_flush_cache *cbfc; 663 int error, command_status; 664 665 debug_called(1); 666 667 cr = NULL; 668 cbfc = NULL; 669 670 /* 671 * Build a BMIC request to flush the cache. We don't disable 672 * it, as we may be going to do more I/O (eg. we are emulating 673 * the Synchronise Cache command). 674 */ 675 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 676 error = ENOMEM; 677 goto out; 678 } 679 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 680 (void **)&cbfc, sizeof(*cbfc))) != 0) 681 goto out; 682 683 /* 684 * Submit the request and wait for it to complete. 685 */ 686 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 687 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 688 goto out; 689 } 690 691 /* 692 * Check response. 693 */ 694 ciss_report_request(cr, &command_status, NULL); 695 switch(command_status) { 696 case CISS_CMD_STATUS_SUCCESS: 697 break; 698 default: 699 ciss_printf(sc, "error flushing cache (%s)\n", 700 ciss_name_command_status(command_status)); 701 error = EIO; 702 goto out; 703 } 704 705out: 706 if (cbfc != NULL) 707 free(cbfc, CISS_MALLOC_CLASS); 708 if (cr != NULL) 709 ciss_release_request(cr); 710 return(error); 711} 712 713/************************************************************************ 714 * Allocate memory for the adapter command structures, initialise 715 * the request structures. 716 * 717 * Note that the entire set of commands are allocated in a single 718 * contiguous slab. 719 */ 720static int 721ciss_init_requests(struct ciss_softc *sc) 722{ 723 struct ciss_request *cr; 724 int i; 725 726 debug_called(1); 727 728 /* 729 * Calculate the number of request structures/commands we are 730 * going to provide for this adapter. 731 */ 732 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 733 734 if (bootverbose) 735 ciss_printf(sc, "using %d of %d available commands\n", 736 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 737 738 /* 739 * Create the DMA tag for commands. 740 */ 741 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 742 1, 0, /* alignment, boundary */ 743 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 744 BUS_SPACE_MAXADDR, /* highaddr */ 745 NULL, NULL, /* filter, filterarg */ 746 CISS_COMMAND_ALLOC_SIZE * 747 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 748 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 749 BUS_DMA_ALLOCNOW, /* flags */ 750 NULL, NULL, /* lockfunc, lockarg */ 751 &sc->ciss_command_dmat)) { 752 ciss_printf(sc, "can't allocate command DMA tag\n"); 753 return(ENOMEM); 754 } 755 /* 756 * Allocate memory and make it available for DMA. 757 */ 758 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 759 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 760 ciss_printf(sc, "can't allocate command memory\n"); 761 return(ENOMEM); 762 } 763 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 764 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 765 ciss_command_map_helper, sc, 0); 766 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 767 768 /* 769 * Set up the request and command structures, push requests onto 770 * the free queue. 771 */ 772 for (i = 1; i < sc->ciss_max_requests; i++) { 773 cr = &sc->ciss_request[i]; 774 cr->cr_sc = sc; 775 cr->cr_tag = i; 776 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 777 ciss_enqueue_free(cr); 778 } 779 return(0); 780} 781 782static void 783ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 784{ 785 struct ciss_softc *sc = (struct ciss_softc *)arg; 786 787 sc->ciss_command_phys = segs->ds_addr; 788} 789 790/************************************************************************ 791 * Identify the adapter, print some information about it. 792 */ 793static int 794ciss_identify_adapter(struct ciss_softc *sc) 795{ 796 struct ciss_request *cr; 797 int error, command_status; 798 799 debug_called(1); 800 801 cr = NULL; 802 803 /* 804 * Get a request, allocate storage for the adapter data. 805 */ 806 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 807 (void **)&sc->ciss_id, 808 sizeof(*sc->ciss_id))) != 0) 809 goto out; 810 811 /* 812 * Submit the request and wait for it to complete. 813 */ 814 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 815 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 816 goto out; 817 } 818 819 /* 820 * Check response. 821 */ 822 ciss_report_request(cr, &command_status, NULL); 823 switch(command_status) { 824 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 825 break; 826 case CISS_CMD_STATUS_DATA_UNDERRUN: 827 case CISS_CMD_STATUS_DATA_OVERRUN: 828 ciss_printf(sc, "data over/underrun reading adapter information\n"); 829 default: 830 ciss_printf(sc, "error reading adapter information (%s)\n", 831 ciss_name_command_status(command_status)); 832 error = EIO; 833 goto out; 834 } 835 836 /* sanity-check reply */ 837 if (!sc->ciss_id->big_map_supported) { 838 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 839 error = ENXIO; 840 goto out; 841 } 842 843#if 0 844 /* XXX later revisions may not need this */ 845 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 846#endif 847 848 /* XXX only really required for old 5300 adapters? */ 849 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 850 851 /* print information */ 852 if (bootverbose) { 853 ciss_printf(sc, " %d logical drive%s configured\n", 854 sc->ciss_id->configured_logical_drives, 855 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 856 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 857 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 858 859 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 860 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 861 ciss_printf(sc, " supported I/O methods 0x%b\n", 862 sc->ciss_cfg->supported_methods, 863 "\20\1READY\2simple\3performant\4MEMQ\n"); 864 ciss_printf(sc, " active I/O method 0x%b\n", 865 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 866 ciss_printf(sc, " 4G page base 0x%08x\n", 867 sc->ciss_cfg->command_physlimit); 868 ciss_printf(sc, " interrupt coalesce delay %dus\n", 869 sc->ciss_cfg->interrupt_coalesce_delay); 870 ciss_printf(sc, " interrupt coalesce count %d\n", 871 sc->ciss_cfg->interrupt_coalesce_count); 872 ciss_printf(sc, " max outstanding commands %d\n", 873 sc->ciss_cfg->max_outstanding_commands); 874 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 875 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 876 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 877 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 878 } 879 880out: 881 if (error) { 882 if (sc->ciss_id != NULL) { 883 free(sc->ciss_id, CISS_MALLOC_CLASS); 884 sc->ciss_id = NULL; 885 } 886 } 887 if (cr != NULL) 888 ciss_release_request(cr); 889 return(error); 890} 891 892/************************************************************************ 893 * Find logical drives on the adapter. 894 */ 895static int 896ciss_init_logical(struct ciss_softc *sc) 897{ 898 struct ciss_request *cr; 899 struct ciss_command *cc; 900 struct ciss_report_cdb *crc; 901 struct ciss_lun_report *cll; 902 int error, i; 903 size_t report_size; 904 int ndrives; 905 int command_status; 906 907 debug_called(1); 908 909 cr = NULL; 910 cll = NULL; 911 912 /* 913 * Get a request, allocate storage for the address list. 914 */ 915 if ((error = ciss_get_request(sc, &cr)) != 0) 916 goto out; 917 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 918 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 919 ciss_printf(sc, "can't allocate memory for logical drive list\n"); 920 error = ENOMEM; 921 goto out; 922 } 923 924 /* 925 * Build the Report Logical LUNs command. 926 */ 927 cc = CISS_FIND_COMMAND(cr); 928 cr->cr_data = cll; 929 cr->cr_length = report_size; 930 cr->cr_flags = CISS_REQ_DATAIN; 931 932 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 933 cc->header.address.physical.bus = 0; 934 cc->header.address.physical.target = 0; 935 cc->cdb.cdb_length = sizeof(*crc); 936 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 937 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 938 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 939 cc->cdb.timeout = 30; /* XXX better suggestions? */ 940 941 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 942 bzero(crc, sizeof(*crc)); 943 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 944 crc->length = htonl(report_size); /* big-endian field */ 945 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 946 947 /* 948 * Submit the request and wait for it to complete. (timeout 949 * here should be much greater than above) 950 */ 951 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 952 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 953 goto out; 954 } 955 956 /* 957 * Check response. Note that data over/underrun is OK. 958 */ 959 ciss_report_request(cr, &command_status, NULL); 960 switch(command_status) { 961 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 962 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 963 break; 964 case CISS_CMD_STATUS_DATA_OVERRUN: 965 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 966 CISS_MAX_LOGICAL); 967 break; 968 default: 969 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 970 ciss_name_command_status(command_status)); 971 error = EIO; 972 goto out; 973 } 974 ciss_release_request(cr); 975 cr = NULL; 976 977 /* sanity-check reply */ 978 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 979 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 980 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 981 ndrives, CISS_MAX_LOGICAL); 982 return(ENXIO); 983 } 984 985 /* 986 * Save logical drive information. 987 */ 988 if (bootverbose) 989 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 990 if (ndrives != sc->ciss_id->configured_logical_drives) 991 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 992 ndrives, sc->ciss_id->configured_logical_drives); 993 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 994 if (i < ndrives) { 995 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 996 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 997 continue; 998 /* 999 * If the drive has had media exchanged, we should bring it online. 1000 */ 1001 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 1002 ciss_accept_media(sc, i, 0); 1003 1004 } else { 1005 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1006 } 1007 } 1008 error = 0; 1009 1010 out: 1011 /* 1012 * Note that if the error is a timeout, we are taking a slight 1013 * risk here and assuming that the adapter will not respond at a 1014 * later time, scribbling over host memory. 1015 */ 1016 if (cr != NULL) 1017 ciss_release_request(cr); 1018 if (cll != NULL) 1019 free(cll, CISS_MALLOC_CLASS); 1020 return(error); 1021} 1022 1023static int 1024ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1025{ 1026 struct ciss_request *cr; 1027 struct ciss_command *cc; 1028 struct scsi_inquiry *inq; 1029 int error; 1030 int command_status; 1031 int lun; 1032 1033 cr = NULL; 1034 lun = ld->cl_address.logical.lun; 1035 1036 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1037 1038 if ((error = ciss_get_request(sc, &cr)) != 0) 1039 goto out; 1040 1041 cc = CISS_FIND_COMMAND(cr); 1042 cr->cr_data = &ld->cl_geometry; 1043 cr->cr_length = sizeof(ld->cl_geometry); 1044 cr->cr_flags = CISS_REQ_DATAIN; 1045 1046 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1047 cc->header.address.logical.lun = lun; 1048 cc->cdb.cdb_length = 6; 1049 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1050 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1051 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1052 cc->cdb.timeout = 30; 1053 1054 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1055 inq->opcode = INQUIRY; 1056 inq->byte2 = SI_EVPD; 1057 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1058 inq->length = sizeof(ld->cl_geometry); 1059 1060 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1061 ciss_printf(sc, "error getting geometry (%d)\n", error); 1062 goto out; 1063 } 1064 1065 ciss_report_request(cr, &command_status, NULL); 1066 switch(command_status) { 1067 case CISS_CMD_STATUS_SUCCESS: 1068 case CISS_CMD_STATUS_DATA_UNDERRUN: 1069 break; 1070 case CISS_CMD_STATUS_DATA_OVERRUN: 1071 ciss_printf(sc, "WARNING: Data overrun\n"); 1072 break; 1073 default: 1074 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1075 ciss_name_command_status(command_status)); 1076 break; 1077 } 1078 1079out: 1080 if (cr != NULL) 1081 ciss_release_request(cr); 1082 return(error); 1083} 1084/************************************************************************ 1085 * Identify a logical drive, initialise state related to it. 1086 */ 1087static int 1088ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1089{ 1090 struct ciss_request *cr; 1091 struct ciss_command *cc; 1092 struct ciss_bmic_cdb *cbc; 1093 int error, command_status; 1094 1095 debug_called(1); 1096 1097 cr = NULL; 1098 1099 /* 1100 * Build a BMIC request to fetch the drive ID. 1101 */ 1102 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1103 (void **)&ld->cl_ldrive, 1104 sizeof(*ld->cl_ldrive))) != 0) 1105 goto out; 1106 cc = CISS_FIND_COMMAND(cr); 1107 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1108 cbc->log_drive = ld->cl_address.logical.lun; 1109 1110 /* 1111 * Submit the request and wait for it to complete. 1112 */ 1113 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1114 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1115 goto out; 1116 } 1117 1118 /* 1119 * Check response. 1120 */ 1121 ciss_report_request(cr, &command_status, NULL); 1122 switch(command_status) { 1123 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1124 break; 1125 case CISS_CMD_STATUS_DATA_UNDERRUN: 1126 case CISS_CMD_STATUS_DATA_OVERRUN: 1127 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1128 default: 1129 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1130 ciss_name_command_status(command_status)); 1131 error = EIO; 1132 goto out; 1133 } 1134 ciss_release_request(cr); 1135 cr = NULL; 1136 1137 /* 1138 * Build a CISS BMIC command to get the logical drive status. 1139 */ 1140 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1141 goto out; 1142 1143 /* 1144 * Get the logical drive geometry. 1145 */ 1146 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1147 goto out; 1148 1149 /* 1150 * Print the drive's basic characteristics. 1151 */ 1152 if (bootverbose) { 1153 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1154 ld->cl_address.logical.lun, 1155 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1156 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1157 ld->cl_ldrive->block_size)); 1158 1159 ciss_print_ldrive(sc, ld); 1160 } 1161out: 1162 if (error != 0) { 1163 /* make the drive not-exist */ 1164 ld->cl_status = CISS_LD_NONEXISTENT; 1165 if (ld->cl_ldrive != NULL) { 1166 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1167 ld->cl_ldrive = NULL; 1168 } 1169 if (ld->cl_lstatus != NULL) { 1170 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1171 ld->cl_lstatus = NULL; 1172 } 1173 } 1174 if (cr != NULL) 1175 ciss_release_request(cr); 1176 1177 return(error); 1178} 1179 1180/************************************************************************ 1181 * Get status for a logical drive. 1182 * 1183 * XXX should we also do this in response to Test Unit Ready? 1184 */ 1185static int 1186ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1187{ 1188 struct ciss_request *cr; 1189 struct ciss_command *cc; 1190 struct ciss_bmic_cdb *cbc; 1191 int error, command_status; 1192 1193 /* 1194 * Build a CISS BMIC command to get the logical drive status. 1195 */ 1196 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1197 (void **)&ld->cl_lstatus, 1198 sizeof(*ld->cl_lstatus))) != 0) 1199 goto out; 1200 cc = CISS_FIND_COMMAND(cr); 1201 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1202 cbc->log_drive = ld->cl_address.logical.lun; 1203 1204 /* 1205 * Submit the request and wait for it to complete. 1206 */ 1207 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1208 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1209 goto out; 1210 } 1211 1212 /* 1213 * Check response. 1214 */ 1215 ciss_report_request(cr, &command_status, NULL); 1216 switch(command_status) { 1217 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1218 break; 1219 case CISS_CMD_STATUS_DATA_UNDERRUN: 1220 case CISS_CMD_STATUS_DATA_OVERRUN: 1221 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1222 default: 1223 ciss_printf(sc, "error reading logical drive status (%s)\n", 1224 ciss_name_command_status(command_status)); 1225 error = EIO; 1226 goto out; 1227 } 1228 1229 /* 1230 * Set the drive's summary status based on the returned status. 1231 * 1232 * XXX testing shows that a failed JBOD drive comes back at next 1233 * boot in "queued for expansion" mode. WTF? 1234 */ 1235 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1236 1237out: 1238 if (cr != NULL) 1239 ciss_release_request(cr); 1240 return(error); 1241} 1242 1243/************************************************************************ 1244 * Notify the adapter of a config update. 1245 */ 1246static int 1247ciss_update_config(struct ciss_softc *sc) 1248{ 1249 int i; 1250 1251 debug_called(1); 1252 1253 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1254 for (i = 0; i < 1000; i++) { 1255 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1256 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1257 return(0); 1258 } 1259 DELAY(1000); 1260 } 1261 return(1); 1262} 1263 1264/************************************************************************ 1265 * Accept new media into a logical drive. 1266 * 1267 * XXX The drive has previously been offline; it would be good if we 1268 * could make sure it's not open right now. 1269 */ 1270static int 1271ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1272{ 1273 struct ciss_request *cr; 1274 struct ciss_command *cc; 1275 struct ciss_bmic_cdb *cbc; 1276 int error; 1277 1278 debug(0, "bringing logical drive %d back online %ssynchronously", 1279 ldrive, async ? "a" : ""); 1280 1281 /* 1282 * Build a CISS BMIC command to bring the drive back online. 1283 */ 1284 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1285 NULL, 0)) != 0) 1286 goto out; 1287 cc = CISS_FIND_COMMAND(cr); 1288 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1289 cbc->log_drive = ldrive; 1290 1291 /* 1292 * Dispatch the request asynchronously if we can't sleep waiting 1293 * for it to complete. 1294 */ 1295 if (async) { 1296 cr->cr_complete = ciss_accept_media_complete; 1297 if ((error = ciss_start(cr)) != 0) 1298 goto out; 1299 return(0); 1300 } else { 1301 /* 1302 * Submit the request and wait for it to complete. 1303 */ 1304 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1305 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1306 goto out; 1307 } 1308 } 1309 1310 /* 1311 * Call the completion callback manually. 1312 */ 1313 ciss_accept_media_complete(cr); 1314 return(0); 1315 1316out: 1317 if (cr != NULL) 1318 ciss_release_request(cr); 1319 return(error); 1320} 1321 1322static void 1323ciss_accept_media_complete(struct ciss_request *cr) 1324{ 1325 int command_status; 1326 1327 /* 1328 * Check response. 1329 */ 1330 ciss_report_request(cr, &command_status, NULL); 1331 switch(command_status) { 1332 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1333 /* we should get a logical drive status changed event here */ 1334 break; 1335 default: 1336 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1337 ciss_name_command_status(command_status)); 1338 break; 1339 } 1340 ciss_release_request(cr); 1341} 1342 1343/************************************************************************ 1344 * Release adapter resources. 1345 */ 1346static void 1347ciss_free(struct ciss_softc *sc) 1348{ 1349 struct ciss_request *cr; 1350 1351 debug_called(1); 1352 1353 /* we're going away */ 1354 sc->ciss_flags |= CISS_FLAG_ABORTING; 1355 1356 /* terminate the periodic heartbeat routine */ 1357 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1358 1359 /* cancel the Event Notify chain */ 1360 ciss_notify_abort(sc); 1361 1362 /* free the controller data */ 1363 if (sc->ciss_id != NULL) 1364 free(sc->ciss_id, CISS_MALLOC_CLASS); 1365 1366 /* release I/O resources */ 1367 if (sc->ciss_regs_resource != NULL) 1368 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1369 sc->ciss_regs_rid, sc->ciss_regs_resource); 1370 if (sc->ciss_cfg_resource != NULL) 1371 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1372 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1373 if (sc->ciss_intr != NULL) 1374 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1375 if (sc->ciss_irq_resource != NULL) 1376 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1377 sc->ciss_irq_rid, sc->ciss_irq_resource); 1378 1379 /* destroy DMA tags */ 1380 if (sc->ciss_parent_dmat) 1381 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1382 1383 while ((cr = ciss_dequeue_free(sc)) != NULL) 1384 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1385 if (sc->ciss_buffer_dmat) 1386 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1387 1388 /* destroy command memory and DMA tag */ 1389 if (sc->ciss_command != NULL) { 1390 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1391 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1392 } 1393 if (sc->ciss_command_dmat) 1394 bus_dma_tag_destroy(sc->ciss_command_dmat); 1395 1396 /* disconnect from CAM */ 1397 if (sc->ciss_cam_sim) { 1398 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1399 cam_sim_free(sc->ciss_cam_sim, 0); 1400 } 1401 if (sc->ciss_cam_devq) 1402 cam_simq_free(sc->ciss_cam_devq); 1403 /* XXX what about ciss_cam_path? */ 1404} 1405 1406/************************************************************************ 1407 * Give a command to the adapter. 1408 * 1409 * Note that this uses the simple transport layer directly. If we 1410 * want to add support for other layers, we'll need a switch of some 1411 * sort. 1412 * 1413 * Note that the simple transport layer has no way of refusing a 1414 * command; we only have as many request structures as the adapter 1415 * supports commands, so we don't have to check (this presumes that 1416 * the adapter can handle commands as fast as we throw them at it). 1417 */ 1418static int 1419ciss_start(struct ciss_request *cr) 1420{ 1421 struct ciss_command *cc; /* XXX debugging only */ 1422 int error; 1423 1424 cc = CISS_FIND_COMMAND(cr); 1425 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1426 1427 /* 1428 * Map the request's data. 1429 */ 1430 if ((error = ciss_map_request(cr))) 1431 return(error); 1432 1433#if 0 1434 ciss_print_request(cr); 1435#endif 1436 1437 return(0); 1438} 1439 1440/************************************************************************ 1441 * Fetch completed request(s) from the adapter, queue them for 1442 * completion handling. 1443 * 1444 * Note that this uses the simple transport layer directly. If we 1445 * want to add support for other layers, we'll need a switch of some 1446 * sort. 1447 * 1448 * Note that the simple transport mechanism does not require any 1449 * reentrancy protection; the OPQ read is atomic. If there is a 1450 * chance of a race with something else that might move the request 1451 * off the busy list, then we will have to lock against that 1452 * (eg. timeouts, etc.) 1453 */ 1454static void 1455ciss_done(struct ciss_softc *sc) 1456{ 1457 struct ciss_request *cr; 1458 struct ciss_command *cc; 1459 u_int32_t tag, index; 1460 int complete; 1461 1462 debug_called(3); 1463 1464 /* 1465 * Loop quickly taking requests from the adapter and moving them 1466 * from the busy queue to the completed queue. 1467 */ 1468 complete = 0; 1469 for (;;) { 1470 1471 /* see if the OPQ contains anything */ 1472 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1473 break; 1474 1475 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1476 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1477 break; 1478 index = tag >> 2; 1479 debug(2, "completed command %d%s", index, 1480 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1481 if (index >= sc->ciss_max_requests) { 1482 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1483 continue; 1484 } 1485 cr = &(sc->ciss_request[index]); 1486 cc = CISS_FIND_COMMAND(cr); 1487 cc->header.host_tag = tag; /* not updated by adapter */ 1488 if (ciss_remove_busy(cr)) { 1489 /* assume this is garbage out of the adapter */ 1490 ciss_printf(sc, "completed nonbusy request %d\n", index); 1491 } else { 1492 ciss_enqueue_complete(cr); 1493 } 1494 complete = 1; 1495 } 1496 1497 /* 1498 * Invoke completion processing. If we can defer this out of 1499 * interrupt context, that'd be good. 1500 */ 1501 if (complete) 1502 ciss_complete(sc); 1503} 1504 1505/************************************************************************ 1506 * Take an interrupt from the adapter. 1507 */ 1508static void 1509ciss_intr(void *arg) 1510{ 1511 struct ciss_softc *sc = (struct ciss_softc *)arg; 1512 1513 /* 1514 * The only interrupt we recognise indicates that there are 1515 * entries in the outbound post queue. 1516 */ 1517 ciss_done(sc); 1518} 1519 1520/************************************************************************ 1521 * Process completed requests. 1522 * 1523 * Requests can be completed in three fashions: 1524 * 1525 * - by invoking a callback function (cr_complete is non-null) 1526 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1527 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1528 */ 1529static void 1530ciss_complete(struct ciss_softc *sc) 1531{ 1532 struct ciss_request *cr; 1533 1534 debug_called(2); 1535 1536 /* 1537 * Loop taking requests off the completed queue and performing 1538 * completion processing on them. 1539 */ 1540 for (;;) { 1541 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1542 break; 1543 ciss_unmap_request(cr); 1544 1545 /* 1546 * If the request has a callback, invoke it. 1547 */ 1548 if (cr->cr_complete != NULL) { 1549 cr->cr_complete(cr); 1550 continue; 1551 } 1552 1553 /* 1554 * If someone is sleeping on this request, wake them up. 1555 */ 1556 if (cr->cr_flags & CISS_REQ_SLEEP) { 1557 cr->cr_flags &= ~CISS_REQ_SLEEP; 1558 wakeup(cr); 1559 continue; 1560 } 1561 1562 /* 1563 * If someone is polling this request for completion, signal. 1564 */ 1565 if (cr->cr_flags & CISS_REQ_POLL) { 1566 cr->cr_flags &= ~CISS_REQ_POLL; 1567 continue; 1568 } 1569 1570 /* 1571 * Give up and throw the request back on the free queue. This 1572 * should never happen; resources will probably be lost. 1573 */ 1574 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1575 ciss_enqueue_free(cr); 1576 } 1577} 1578 1579/************************************************************************ 1580 * Report on the completion status of a request, and pass back SCSI 1581 * and command status values. 1582 */ 1583static int 1584ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1585{ 1586 struct ciss_command *cc; 1587 struct ciss_error_info *ce; 1588 1589 debug_called(2); 1590 1591 cc = CISS_FIND_COMMAND(cr); 1592 ce = (struct ciss_error_info *)&(cc->sg[0]); 1593 1594 /* 1595 * We don't consider data under/overrun an error for the Report 1596 * Logical/Physical LUNs commands. 1597 */ 1598 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1599 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1600 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1601 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1602 debug(2, "ignoring irrelevant under/overrun error"); 1603 } 1604 1605 /* 1606 * Check the command's error bit, if clear, there's no status and 1607 * everything is OK. 1608 */ 1609 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1610 if (scsi_status != NULL) 1611 *scsi_status = SCSI_STATUS_OK; 1612 if (command_status != NULL) 1613 *command_status = CISS_CMD_STATUS_SUCCESS; 1614 return(0); 1615 } else { 1616 if (command_status != NULL) 1617 *command_status = ce->command_status; 1618 if (scsi_status != NULL) { 1619 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1620 *scsi_status = ce->scsi_status; 1621 } else { 1622 *scsi_status = -1; 1623 } 1624 } 1625 if (bootverbose) 1626 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1627 ce->command_status, ciss_name_command_status(ce->command_status), 1628 ce->scsi_status); 1629 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1630 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1631 ce->additional_error_info.invalid_command.offense_size, 1632 ce->additional_error_info.invalid_command.offense_offset, 1633 ce->additional_error_info.invalid_command.offense_value); 1634 } 1635 } 1636 return(1); 1637} 1638 1639/************************************************************************ 1640 * Issue a request and don't return until it's completed. 1641 * 1642 * Depending on adapter status, we may poll or sleep waiting for 1643 * completion. 1644 */ 1645static int 1646ciss_synch_request(struct ciss_request *cr, int timeout) 1647{ 1648 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1649 return(ciss_wait_request(cr, timeout)); 1650 } else { 1651 return(ciss_poll_request(cr, timeout)); 1652 } 1653} 1654 1655/************************************************************************ 1656 * Issue a request and poll for completion. 1657 * 1658 * Timeout in milliseconds. 1659 */ 1660static int 1661ciss_poll_request(struct ciss_request *cr, int timeout) 1662{ 1663 int error; 1664 1665 debug_called(2); 1666 1667 cr->cr_flags |= CISS_REQ_POLL; 1668 if ((error = ciss_start(cr)) != 0) 1669 return(error); 1670 1671 do { 1672 ciss_done(cr->cr_sc); 1673 if (!(cr->cr_flags & CISS_REQ_POLL)) 1674 return(0); 1675 DELAY(1000); 1676 } while (timeout-- >= 0); 1677 return(EWOULDBLOCK); 1678} 1679 1680/************************************************************************ 1681 * Issue a request and sleep waiting for completion. 1682 * 1683 * Timeout in milliseconds. Note that a spurious wakeup will reset 1684 * the timeout. 1685 */ 1686static int 1687ciss_wait_request(struct ciss_request *cr, int timeout) 1688{ 1689 int s, error; 1690 1691 debug_called(2); 1692 1693 cr->cr_flags |= CISS_REQ_SLEEP; 1694 if ((error = ciss_start(cr)) != 0) 1695 return(error); 1696 1697 s = splcam(); 1698 while (cr->cr_flags & CISS_REQ_SLEEP) { 1699 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1700 /* 1701 * On wakeup or interruption due to restartable activity, go 1702 * back and check to see if we're done. 1703 */ 1704 if ((error == 0) || (error == ERESTART)) { 1705 error = 0; 1706 continue; 1707 } 1708 /* 1709 * Timeout, interrupted system call, etc. 1710 */ 1711 break; 1712 } 1713 splx(s); 1714 return(error); 1715} 1716 1717#if 0 1718/************************************************************************ 1719 * Abort a request. Note that a potential exists here to race the 1720 * request being completed; the caller must deal with this. 1721 */ 1722static int 1723ciss_abort_request(struct ciss_request *ar) 1724{ 1725 struct ciss_request *cr; 1726 struct ciss_command *cc; 1727 struct ciss_message_cdb *cmc; 1728 int error; 1729 1730 debug_called(1); 1731 1732 /* get a request */ 1733 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1734 return(error); 1735 1736 /* build the abort command */ 1737 cc = CISS_FIND_COMMAND(cr); 1738 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1739 cc->header.address.physical.target = 0; 1740 cc->header.address.physical.bus = 0; 1741 cc->cdb.cdb_length = sizeof(*cmc); 1742 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1743 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1744 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1745 cc->cdb.timeout = 30; 1746 1747 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1748 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1749 cmc->type = CISS_MESSAGE_ABORT_TASK; 1750 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1751 1752 /* 1753 * Send the request and wait for a response. If we believe we 1754 * aborted the request OK, clear the flag that indicates it's 1755 * running. 1756 */ 1757 error = ciss_synch_request(cr, 35 * 1000); 1758 if (!error) 1759 error = ciss_report_request(cr, NULL, NULL); 1760 ciss_release_request(cr); 1761 1762 return(error); 1763} 1764#endif 1765 1766 1767/************************************************************************ 1768 * Fetch and initialise a request 1769 */ 1770static int 1771ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1772{ 1773 struct ciss_request *cr; 1774 1775 debug_called(2); 1776 1777 /* 1778 * Get a request and clean it up. 1779 */ 1780 if ((cr = ciss_dequeue_free(sc)) == NULL) 1781 return(ENOMEM); 1782 1783 cr->cr_data = NULL; 1784 cr->cr_flags = 0; 1785 cr->cr_complete = NULL; 1786 cr->cr_private = NULL; 1787 1788 ciss_preen_command(cr); 1789 *crp = cr; 1790 return(0); 1791} 1792 1793static void 1794ciss_preen_command(struct ciss_request *cr) 1795{ 1796 struct ciss_command *cc; 1797 u_int32_t cmdphys; 1798 1799 /* 1800 * Clean up the command structure. 1801 * 1802 * Note that we set up the error_info structure here, since the 1803 * length can be overwritten by any command. 1804 */ 1805 cc = CISS_FIND_COMMAND(cr); 1806 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1807 cc->header.sg_total = 0; 1808 cc->header.host_tag = cr->cr_tag << 2; 1809 cc->header.host_tag_zeroes = 0; 1810 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1811 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1812 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1813 1814} 1815 1816/************************************************************************ 1817 * Release a request to the free list. 1818 */ 1819static void 1820ciss_release_request(struct ciss_request *cr) 1821{ 1822 struct ciss_softc *sc; 1823 1824 debug_called(2); 1825 1826 sc = cr->cr_sc; 1827 1828 /* release the request to the free queue */ 1829 ciss_requeue_free(cr); 1830} 1831 1832/************************************************************************ 1833 * Allocate a request that will be used to send a BMIC command. Do some 1834 * of the common setup here to avoid duplicating it everywhere else. 1835 */ 1836static int 1837ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1838 int opcode, void **bufp, size_t bufsize) 1839{ 1840 struct ciss_request *cr; 1841 struct ciss_command *cc; 1842 struct ciss_bmic_cdb *cbc; 1843 void *buf; 1844 int error; 1845 int dataout; 1846 1847 debug_called(2); 1848 1849 cr = NULL; 1850 buf = NULL; 1851 1852 /* 1853 * Get a request. 1854 */ 1855 if ((error = ciss_get_request(sc, &cr)) != 0) 1856 goto out; 1857 1858 /* 1859 * Allocate data storage if requested, determine the data direction. 1860 */ 1861 dataout = 0; 1862 if ((bufsize > 0) && (bufp != NULL)) { 1863 if (*bufp == NULL) { 1864 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1865 error = ENOMEM; 1866 goto out; 1867 } 1868 } else { 1869 buf = *bufp; 1870 dataout = 1; /* we are given a buffer, so we are writing */ 1871 } 1872 } 1873 1874 /* 1875 * Build a CISS BMIC command to get the logical drive ID. 1876 */ 1877 cr->cr_data = buf; 1878 cr->cr_length = bufsize; 1879 if (!dataout) 1880 cr->cr_flags = CISS_REQ_DATAIN; 1881 1882 cc = CISS_FIND_COMMAND(cr); 1883 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1884 cc->header.address.physical.bus = 0; 1885 cc->header.address.physical.target = 0; 1886 cc->cdb.cdb_length = sizeof(*cbc); 1887 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1888 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1889 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1890 cc->cdb.timeout = 0; 1891 1892 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1893 bzero(cbc, sizeof(*cbc)); 1894 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1895 cbc->bmic_opcode = opcode; 1896 cbc->size = htons((u_int16_t)bufsize); 1897 1898out: 1899 if (error) { 1900 if (cr != NULL) 1901 ciss_release_request(cr); 1902 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1903 free(buf, CISS_MALLOC_CLASS); 1904 } else { 1905 *crp = cr; 1906 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1907 *bufp = buf; 1908 } 1909 return(error); 1910} 1911 1912/************************************************************************ 1913 * Handle a command passed in from userspace. 1914 */ 1915static int 1916ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1917{ 1918 struct ciss_request *cr; 1919 struct ciss_command *cc; 1920 struct ciss_error_info *ce; 1921 int error = 0; 1922 1923 debug_called(1); 1924 1925 cr = NULL; 1926 1927 /* 1928 * Get a request. 1929 */ 1930 if ((error = ciss_get_request(sc, &cr)) != 0) 1931 goto out; 1932 cc = CISS_FIND_COMMAND(cr); 1933 1934 /* 1935 * Allocate an in-kernel databuffer if required, copy in user data. 1936 */ 1937 cr->cr_length = ioc->buf_size; 1938 if (ioc->buf_size > 0) { 1939 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1940 error = ENOMEM; 1941 goto out; 1942 } 1943 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1944 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1945 goto out; 1946 } 1947 } 1948 1949 /* 1950 * Build the request based on the user command. 1951 */ 1952 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1953 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1954 1955 /* XXX anything else to populate here? */ 1956 1957 /* 1958 * Run the command. 1959 */ 1960 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1961 debug(0, "request failed - %d", error); 1962 goto out; 1963 } 1964 1965 /* 1966 * Check to see if the command succeeded. 1967 */ 1968 ce = (struct ciss_error_info *)&(cc->sg[0]); 1969 if (ciss_report_request(cr, NULL, NULL) == 0) 1970 bzero(ce, sizeof(*ce)); 1971 else 1972 error = EIO; 1973 1974 /* 1975 * Copy the results back to the user. 1976 */ 1977 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1978 if ((ioc->buf_size > 0) && 1979 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1980 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1981 goto out; 1982 } 1983 1984 /* done OK */ 1985 error = 0; 1986 1987out: 1988 if ((cr != NULL) && (cr->cr_data != NULL)) 1989 free(cr->cr_data, CISS_MALLOC_CLASS); 1990 if (cr != NULL) 1991 ciss_release_request(cr); 1992 return(error); 1993} 1994 1995/************************************************************************ 1996 * Map a request into bus-visible space, initialise the scatter/gather 1997 * list. 1998 */ 1999static int 2000ciss_map_request(struct ciss_request *cr) 2001{ 2002 struct ciss_softc *sc; 2003 int error = 0; 2004 2005 debug_called(2); 2006 2007 sc = cr->cr_sc; 2008 2009 /* check that mapping is necessary */ 2010 if (cr->cr_flags & CISS_REQ_MAPPED) 2011 return(0); 2012 2013 cr->cr_flags |= CISS_REQ_MAPPED; 2014 2015 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2016 BUS_DMASYNC_PREWRITE); 2017 2018 if (cr->cr_data != NULL) { 2019 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2020 cr->cr_data, cr->cr_length, 2021 ciss_request_map_helper, cr, 0); 2022 if (error != 0) 2023 return (error); 2024 } else { 2025 /* 2026 * Post the command to the adapter. 2027 */ 2028 ciss_enqueue_busy(cr); 2029 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2030 } 2031 2032 return(0); 2033} 2034 2035static void 2036ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2037{ 2038 struct ciss_command *cc; 2039 struct ciss_request *cr; 2040 struct ciss_softc *sc; 2041 int i; 2042 2043 debug_called(2); 2044 2045 cr = (struct ciss_request *)arg; 2046 sc = cr->cr_sc; 2047 cc = CISS_FIND_COMMAND(cr); 2048 2049 for (i = 0; i < nseg; i++) { 2050 cc->sg[i].address = segs[i].ds_addr; 2051 cc->sg[i].length = segs[i].ds_len; 2052 cc->sg[i].extension = 0; 2053 } 2054 /* we leave the s/g table entirely within the command */ 2055 cc->header.sg_in_list = nseg; 2056 cc->header.sg_total = nseg; 2057 2058 if (cr->cr_flags & CISS_REQ_DATAIN) 2059 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2060 if (cr->cr_flags & CISS_REQ_DATAOUT) 2061 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2062 2063 /* 2064 * Post the command to the adapter. 2065 */ 2066 ciss_enqueue_busy(cr); 2067 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2068} 2069 2070/************************************************************************ 2071 * Unmap a request from bus-visible space. 2072 */ 2073static void 2074ciss_unmap_request(struct ciss_request *cr) 2075{ 2076 struct ciss_softc *sc; 2077 2078 debug_called(2); 2079 2080 sc = cr->cr_sc; 2081 2082 /* check that unmapping is necessary */ 2083 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2084 return; 2085 2086 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2087 BUS_DMASYNC_POSTWRITE); 2088 2089 if (cr->cr_data == NULL) 2090 goto out; 2091 2092 if (cr->cr_flags & CISS_REQ_DATAIN) 2093 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2094 if (cr->cr_flags & CISS_REQ_DATAOUT) 2095 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2096 2097 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2098out: 2099 cr->cr_flags &= ~CISS_REQ_MAPPED; 2100} 2101 2102/************************************************************************ 2103 * Attach the driver to CAM. 2104 * 2105 * We put all the logical drives on a single SCSI bus. 2106 */ 2107static int 2108ciss_cam_init(struct ciss_softc *sc) 2109{ 2110 2111 debug_called(1); 2112 2113 /* 2114 * Allocate a devq. We can reuse this for the masked physical 2115 * devices if we decide to export these as well. 2116 */ 2117 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2118 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2119 return(ENOMEM); 2120 } 2121 2122 /* 2123 * Create a SIM. 2124 */ 2125 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2126 device_get_unit(sc->ciss_dev), 2127 sc->ciss_max_requests - 2, 2128 1, 2129 sc->ciss_cam_devq)) == NULL) { 2130 ciss_printf(sc, "can't allocate CAM SIM\n"); 2131 return(ENOMEM); 2132 } 2133 2134 /* 2135 * Register bus 0 (the 'logical drives' bus) with this SIM. 2136 */ 2137 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2138 ciss_printf(sc, "can't register SCSI bus 0\n"); 2139 return(ENXIO); 2140 } 2141 2142 /* 2143 * Initiate a rescan of the bus. 2144 */ 2145 ciss_cam_rescan_all(sc); 2146 2147 return(0); 2148} 2149 2150/************************************************************************ 2151 * Initiate a rescan of the 'logical devices' SIM 2152 */ 2153static void 2154ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2155{ 2156 union ccb *ccb; 2157 2158 debug_called(1); 2159 2160 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2161 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2162 return; 2163 } 2164 2165 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2166 != CAM_REQ_CMP) { 2167 ciss_printf(sc, "rescan failed (can't create path)\n"); 2168 free(ccb, M_TEMP); 2169 return; 2170 } 2171 2172 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2173 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2174 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2175 ccb->crcn.flags = CAM_FLAG_NONE; 2176 xpt_action(ccb); 2177 2178 /* scan is now in progress */ 2179} 2180 2181static void 2182ciss_cam_rescan_all(struct ciss_softc *sc) 2183{ 2184 ciss_cam_rescan_target(sc, 0); 2185} 2186 2187static void 2188ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2189{ 2190 xpt_free_path(ccb->ccb_h.path); 2191 free(ccb, M_TEMP); 2192} 2193 2194/************************************************************************ 2195 * Handle requests coming from CAM 2196 */ 2197static void 2198ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2199{ 2200 struct ciss_softc *sc; 2201 struct ccb_scsiio *csio; 2202 int target; 2203 2204 sc = cam_sim_softc(sim); 2205 csio = (struct ccb_scsiio *)&ccb->csio; 2206 target = csio->ccb_h.target_id; 2207 2208 switch (ccb->ccb_h.func_code) { 2209 2210 /* perform SCSI I/O */ 2211 case XPT_SCSI_IO: 2212 if (!ciss_cam_action_io(sim, csio)) 2213 return; 2214 break; 2215 2216 /* perform geometry calculations */ 2217 case XPT_CALC_GEOMETRY: 2218 { 2219 struct ccb_calc_geometry *ccg = &ccb->ccg; 2220 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2221 2222 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2223 2224 /* 2225 * Use the cached geometry settings unless the fault tolerance 2226 * is invalid. 2227 */ 2228 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2229 u_int32_t secs_per_cylinder; 2230 2231 ccg->heads = 255; 2232 ccg->secs_per_track = 32; 2233 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2234 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2235 } else { 2236 ccg->heads = ld->cl_geometry.heads; 2237 ccg->secs_per_track = ld->cl_geometry.sectors; 2238 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2239 } 2240 ccb->ccb_h.status = CAM_REQ_CMP; 2241 break; 2242 } 2243 2244 /* handle path attribute inquiry */ 2245 case XPT_PATH_INQ: 2246 { 2247 struct ccb_pathinq *cpi = &ccb->cpi; 2248 2249 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2250 2251 cpi->version_num = 1; 2252 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2253 cpi->target_sprt = 0; 2254 cpi->hba_misc = 0; 2255 cpi->max_target = CISS_MAX_LOGICAL; 2256 cpi->max_lun = 0; /* 'logical drive' channel only */ 2257 cpi->initiator_id = CISS_MAX_LOGICAL; 2258 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2259 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2260 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2261 cpi->unit_number = cam_sim_unit(sim); 2262 cpi->bus_id = cam_sim_bus(sim); 2263 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2264 ccb->ccb_h.status = CAM_REQ_CMP; 2265 break; 2266 } 2267 2268 case XPT_GET_TRAN_SETTINGS: 2269 { 2270 struct ccb_trans_settings *cts = &ccb->cts; 2271 int bus, target; 2272 2273 bus = cam_sim_bus(sim); 2274 target = cts->ccb_h.target_id; 2275 2276 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2277 cts->valid = 0; 2278 2279 /* disconnect always OK */ 2280 cts->flags |= CCB_TRANS_DISC_ENB; 2281 cts->valid |= CCB_TRANS_DISC_VALID; 2282 2283 cts->ccb_h.status = CAM_REQ_CMP; 2284 break; 2285 } 2286 2287 default: /* we can't do this */ 2288 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2289 ccb->ccb_h.status = CAM_REQ_INVALID; 2290 break; 2291 } 2292 2293 xpt_done(ccb); 2294} 2295 2296/************************************************************************ 2297 * Handle a CAM SCSI I/O request. 2298 */ 2299static int 2300ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2301{ 2302 struct ciss_softc *sc; 2303 int bus, target; 2304 struct ciss_request *cr; 2305 struct ciss_command *cc; 2306 int error; 2307 2308 sc = cam_sim_softc(sim); 2309 bus = cam_sim_bus(sim); 2310 target = csio->ccb_h.target_id; 2311 2312 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2313 2314 /* check for I/O attempt to nonexistent device */ 2315 if ((bus != 0) || 2316 (target >= CISS_MAX_LOGICAL)) { 2317 debug(3, " device does not exist"); 2318 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2319 } 2320 2321 /* firmware does not support commands > 10 bytes */ 2322 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2323 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2324 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2325 } 2326 2327 /* check that the CDB pointer is not to a physical address */ 2328 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2329 debug(3, " CDB pointer is to physical address"); 2330 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2331 } 2332 2333 /* if there is data transfer, it must be to/from a virtual address */ 2334 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2335 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2336 debug(3, " data pointer is to physical address"); 2337 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2338 } 2339 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2340 debug(3, " data has premature s/g setup"); 2341 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2342 } 2343 } 2344 2345 /* abandon aborted ccbs or those that have failed validation */ 2346 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2347 debug(3, "abandoning CCB due to abort/validation failure"); 2348 return(EINVAL); 2349 } 2350 2351 /* handle emulation of some SCSI commands ourself */ 2352 if (ciss_cam_emulate(sc, csio)) 2353 return(0); 2354 2355 /* 2356 * Get a request to manage this command. If we can't, return the 2357 * ccb, freeze the queue and flag so that we unfreeze it when a 2358 * request completes. 2359 */ 2360 if ((error = ciss_get_request(sc, &cr)) != 0) { 2361 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2362 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2363 return(error); 2364 } 2365 2366 /* 2367 * Build the command. 2368 */ 2369 cc = CISS_FIND_COMMAND(cr); 2370 cr->cr_data = csio->data_ptr; 2371 cr->cr_length = csio->dxfer_len; 2372 cr->cr_complete = ciss_cam_complete; 2373 cr->cr_private = csio; 2374 2375 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2376 cc->header.address.logical.lun = target; 2377 cc->cdb.cdb_length = csio->cdb_len; 2378 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2379 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2380 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2381 cr->cr_flags = CISS_REQ_DATAOUT; 2382 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2383 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2384 cr->cr_flags = CISS_REQ_DATAIN; 2385 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2386 } else { 2387 cr->cr_flags = 0; 2388 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2389 } 2390 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2391 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2392 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2393 } else { 2394 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2395 } 2396 2397 /* 2398 * Submit the request to the adapter. 2399 * 2400 * Note that this may fail if we're unable to map the request (and 2401 * if we ever learn a transport layer other than simple, may fail 2402 * if the adapter rejects the command). 2403 */ 2404 if ((error = ciss_start(cr)) != 0) { 2405 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2406 if (error == EINPROGRESS) { 2407 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2408 error = 0; 2409 } else { 2410 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2411 ciss_release_request(cr); 2412 } 2413 return(error); 2414 } 2415 2416 return(0); 2417} 2418 2419/************************************************************************ 2420 * Emulate SCSI commands the adapter doesn't handle as we might like. 2421 */ 2422static int 2423ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2424{ 2425 int target; 2426 u_int8_t opcode; 2427 2428 target = csio->ccb_h.target_id; 2429 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2430 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2431 2432 /* 2433 * Handle requests for volumes that don't exist. A selection timeout 2434 * is slightly better than an illegal request. Other errors might be 2435 * better. 2436 */ 2437 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2438 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2439 xpt_done((union ccb *)csio); 2440 return(1); 2441 } 2442 2443 /* 2444 * Handle requests for volumes that exist but are offline. 2445 * 2446 * I/O operations should fail, everything else should work. 2447 */ 2448 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2449 switch(opcode) { 2450 case READ_6: 2451 case READ_10: 2452 case READ_12: 2453 case WRITE_6: 2454 case WRITE_10: 2455 case WRITE_12: 2456 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2457 xpt_done((union ccb *)csio); 2458 return(1); 2459 } 2460 } 2461 2462 /* if we have to fake Synchronise Cache */ 2463 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2464 /* 2465 * If this is a Synchronise Cache command, typically issued when 2466 * a device is closed, flush the adapter and complete now. 2467 */ 2468 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2469 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2470 ciss_flush_adapter(sc); 2471 csio->ccb_h.status = CAM_REQ_CMP; 2472 xpt_done((union ccb *)csio); 2473 return(1); 2474 } 2475 } 2476 2477 return(0); 2478} 2479 2480/************************************************************************ 2481 * Check for possibly-completed commands. 2482 */ 2483static void 2484ciss_cam_poll(struct cam_sim *sim) 2485{ 2486 struct ciss_softc *sc = cam_sim_softc(sim); 2487 2488 debug_called(2); 2489 2490 ciss_done(sc); 2491} 2492 2493/************************************************************************ 2494 * Handle completion of a command - pass results back through the CCB 2495 */ 2496static void 2497ciss_cam_complete(struct ciss_request *cr) 2498{ 2499 struct ciss_softc *sc; 2500 struct ciss_command *cc; 2501 struct ciss_error_info *ce; 2502 struct ccb_scsiio *csio; 2503 int scsi_status; 2504 int command_status; 2505 2506 debug_called(2); 2507 2508 sc = cr->cr_sc; 2509 cc = CISS_FIND_COMMAND(cr); 2510 ce = (struct ciss_error_info *)&(cc->sg[0]); 2511 csio = (struct ccb_scsiio *)cr->cr_private; 2512 2513 /* 2514 * Extract status values from request. 2515 */ 2516 ciss_report_request(cr, &command_status, &scsi_status); 2517 csio->scsi_status = scsi_status; 2518 2519 /* 2520 * Handle specific SCSI status values. 2521 */ 2522 switch(scsi_status) { 2523 /* no status due to adapter error */ 2524 case -1: 2525 debug(0, "adapter error"); 2526 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2527 break; 2528 2529 /* no status due to command completed OK */ 2530 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2531 debug(2, "SCSI_STATUS_OK"); 2532 csio->ccb_h.status = CAM_REQ_CMP; 2533 break; 2534 2535 /* check condition, sense data included */ 2536 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2537 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2538 ce->sense_length, ce->residual_count); 2539 bzero(&csio->sense_data, SSD_FULL_SIZE); 2540 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2541 csio->sense_len = ce->sense_length; 2542 csio->resid = ce->residual_count; 2543 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2544#ifdef CISS_DEBUG 2545 { 2546 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2547 debug(0, "sense key %x", sns->flags & SSD_KEY); 2548 } 2549#endif 2550 break; 2551 2552 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2553 debug(0, "SCSI_STATUS_BUSY"); 2554 csio->ccb_h.status = CAM_SCSI_BUSY; 2555 break; 2556 2557 default: 2558 debug(0, "unknown status 0x%x", csio->scsi_status); 2559 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2560 break; 2561 } 2562 2563 /* handle post-command fixup */ 2564 ciss_cam_complete_fixup(sc, csio); 2565 2566 /* tell CAM we're ready for more commands */ 2567 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2568 2569 xpt_done((union ccb *)csio); 2570 ciss_release_request(cr); 2571} 2572 2573/******************************************************************************** 2574 * Fix up the result of some commands here. 2575 */ 2576static void 2577ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2578{ 2579 struct scsi_inquiry_data *inq; 2580 struct ciss_ldrive *cl; 2581 int target; 2582 2583 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2584 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2585 2586 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2587 target = csio->ccb_h.target_id; 2588 cl = &sc->ciss_logical[target]; 2589 2590 padstr(inq->vendor, "COMPAQ", 8); 2591 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2592 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2593 } 2594} 2595 2596 2597/******************************************************************************** 2598 * Find a peripheral attached at (target) 2599 */ 2600static struct cam_periph * 2601ciss_find_periph(struct ciss_softc *sc, int target) 2602{ 2603 struct cam_periph *periph; 2604 struct cam_path *path; 2605 int status; 2606 2607 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2608 if (status == CAM_REQ_CMP) { 2609 periph = cam_periph_find(path, NULL); 2610 xpt_free_path(path); 2611 } else { 2612 periph = NULL; 2613 } 2614 return(periph); 2615} 2616 2617/******************************************************************************** 2618 * Name the device at (target) 2619 * 2620 * XXX is this strictly correct? 2621 */ 2622static int 2623ciss_name_device(struct ciss_softc *sc, int target) 2624{ 2625 struct cam_periph *periph; 2626 2627 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2628 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2629 return(0); 2630 } 2631 sc->ciss_logical[target].cl_name[0] = 0; 2632 return(ENOENT); 2633} 2634 2635/************************************************************************ 2636 * Periodic status monitoring. 2637 */ 2638static void 2639ciss_periodic(void *arg) 2640{ 2641 struct ciss_softc *sc; 2642 2643 debug_called(1); 2644 2645 sc = (struct ciss_softc *)arg; 2646 2647 /* 2648 * Check the adapter heartbeat. 2649 */ 2650 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2651 sc->ciss_heart_attack++; 2652 debug(0, "adapter heart attack in progress 0x%x/%d", 2653 sc->ciss_heartbeat, sc->ciss_heart_attack); 2654 if (sc->ciss_heart_attack == 3) { 2655 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2656 /* XXX should reset adapter here */ 2657 } 2658 } else { 2659 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2660 sc->ciss_heart_attack = 0; 2661 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2662 } 2663 2664 /* 2665 * If the notify event request has died for some reason, or has 2666 * not started yet, restart it. 2667 */ 2668 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2669 debug(0, "(re)starting Event Notify chain"); 2670 ciss_notify_event(sc); 2671 } 2672 2673 /* 2674 * Reschedule. 2675 */ 2676 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2677 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2678} 2679 2680/************************************************************************ 2681 * Request a notification response from the adapter. 2682 * 2683 * If (cr) is NULL, this is the first request of the adapter, so 2684 * reset the adapter's message pointer and start with the oldest 2685 * message available. 2686 */ 2687static void 2688ciss_notify_event(struct ciss_softc *sc) 2689{ 2690 struct ciss_request *cr; 2691 struct ciss_command *cc; 2692 struct ciss_notify_cdb *cnc; 2693 int error; 2694 2695 debug_called(1); 2696 2697 cr = sc->ciss_periodic_notify; 2698 2699 /* get a request if we don't already have one */ 2700 if (cr == NULL) { 2701 if ((error = ciss_get_request(sc, &cr)) != 0) { 2702 debug(0, "can't get notify event request"); 2703 goto out; 2704 } 2705 sc->ciss_periodic_notify = cr; 2706 cr->cr_complete = ciss_notify_complete; 2707 debug(1, "acquired request %d", cr->cr_tag); 2708 } 2709 2710 /* 2711 * Get a databuffer if we don't already have one, note that the 2712 * adapter command wants a larger buffer than the actual 2713 * structure. 2714 */ 2715 if (cr->cr_data == NULL) { 2716 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2717 debug(0, "can't get notify event request buffer"); 2718 error = ENOMEM; 2719 goto out; 2720 } 2721 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2722 } 2723 2724 /* re-setup the request's command (since we never release it) XXX overkill*/ 2725 ciss_preen_command(cr); 2726 2727 /* (re)build the notify event command */ 2728 cc = CISS_FIND_COMMAND(cr); 2729 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2730 cc->header.address.physical.bus = 0; 2731 cc->header.address.physical.target = 0; 2732 2733 cc->cdb.cdb_length = sizeof(*cnc); 2734 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2735 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2736 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2737 cc->cdb.timeout = 0; /* no timeout, we hope */ 2738 2739 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2740 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2741 cnc->opcode = CISS_OPCODE_READ; 2742 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2743 cnc->timeout = 0; /* no timeout, we hope */ 2744 cnc->synchronous = 0; 2745 cnc->ordered = 0; 2746 cnc->seek_to_oldest = 0; 2747 cnc->new_only = 0; 2748 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2749 2750 /* submit the request */ 2751 error = ciss_start(cr); 2752 2753 out: 2754 if (error) { 2755 if (cr != NULL) { 2756 if (cr->cr_data != NULL) 2757 free(cr->cr_data, CISS_MALLOC_CLASS); 2758 ciss_release_request(cr); 2759 } 2760 sc->ciss_periodic_notify = NULL; 2761 debug(0, "can't submit notify event request"); 2762 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2763 } else { 2764 debug(1, "notify event submitted"); 2765 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2766 } 2767} 2768 2769static void 2770ciss_notify_complete(struct ciss_request *cr) 2771{ 2772 struct ciss_command *cc; 2773 struct ciss_notify *cn; 2774 struct ciss_softc *sc; 2775 int scsi_status; 2776 int command_status; 2777 2778 debug_called(1); 2779 2780 cc = CISS_FIND_COMMAND(cr); 2781 cn = (struct ciss_notify *)cr->cr_data; 2782 sc = cr->cr_sc; 2783 2784 /* 2785 * Report request results, decode status. 2786 */ 2787 ciss_report_request(cr, &command_status, &scsi_status); 2788 2789 /* 2790 * Abort the chain on a fatal error. 2791 * 2792 * XXX which of these are actually errors? 2793 */ 2794 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2795 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2796 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2797 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2798 ciss_name_command_status(command_status)); 2799 ciss_release_request(cr); 2800 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2801 return; 2802 } 2803 2804 /* 2805 * If the adapter gave us a text message, print it. 2806 */ 2807 if (cn->message[0] != 0) 2808 ciss_printf(sc, "*** %.80s\n", cn->message); 2809 2810 debug(0, "notify event class %d subclass %d detail %d", 2811 cn->class, cn->subclass, cn->detail); 2812 2813 /* 2814 * If there's room, save the event for a user-level tool. 2815 */ 2816 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2817 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2818 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2819 } 2820 2821 /* 2822 * Some events are directly of interest to us. 2823 */ 2824 switch (cn->class) { 2825 case CISS_NOTIFY_LOGICAL: 2826 ciss_notify_logical(sc, cn); 2827 break; 2828 case CISS_NOTIFY_PHYSICAL: 2829 ciss_notify_physical(sc, cn); 2830 break; 2831 } 2832 2833 /* 2834 * If the response indicates that the notifier has been aborted, 2835 * release the notifier command. 2836 */ 2837 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2838 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2839 (cn->detail == 1)) { 2840 debug(0, "notifier exiting"); 2841 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2842 ciss_release_request(cr); 2843 sc->ciss_periodic_notify = NULL; 2844 wakeup(&sc->ciss_periodic_notify); 2845 } 2846 2847 /* 2848 * Send a new notify event command, if we're not aborting. 2849 */ 2850 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2851 ciss_notify_event(sc); 2852 } 2853} 2854 2855/************************************************************************ 2856 * Abort the Notify Event chain. 2857 * 2858 * Note that we can't just abort the command in progress; we have to 2859 * explicitly issue an Abort Notify Event command in order for the 2860 * adapter to clean up correctly. 2861 * 2862 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2863 * the chain will not restart itself. 2864 */ 2865static int 2866ciss_notify_abort(struct ciss_softc *sc) 2867{ 2868 struct ciss_request *cr; 2869 struct ciss_command *cc; 2870 struct ciss_notify_cdb *cnc; 2871 int error, s, command_status, scsi_status; 2872 2873 debug_called(1); 2874 2875 cr = NULL; 2876 error = 0; 2877 2878 /* verify that there's an outstanding command */ 2879 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2880 goto out; 2881 2882 /* get a command to issue the abort with */ 2883 if ((error = ciss_get_request(sc, &cr))) 2884 goto out; 2885 2886 /* get a buffer for the result */ 2887 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2888 debug(0, "can't get notify event request buffer"); 2889 error = ENOMEM; 2890 goto out; 2891 } 2892 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2893 2894 /* build the CDB */ 2895 cc = CISS_FIND_COMMAND(cr); 2896 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2897 cc->header.address.physical.bus = 0; 2898 cc->header.address.physical.target = 0; 2899 cc->cdb.cdb_length = sizeof(*cnc); 2900 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2901 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2902 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2903 cc->cdb.timeout = 0; /* no timeout, we hope */ 2904 2905 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2906 bzero(cnc, sizeof(*cnc)); 2907 cnc->opcode = CISS_OPCODE_WRITE; 2908 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2909 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2910 2911 ciss_print_request(cr); 2912 2913 /* 2914 * Submit the request and wait for it to complete. 2915 */ 2916 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2917 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2918 goto out; 2919 } 2920 2921 /* 2922 * Check response. 2923 */ 2924 ciss_report_request(cr, &command_status, &scsi_status); 2925 switch(command_status) { 2926 case CISS_CMD_STATUS_SUCCESS: 2927 break; 2928 case CISS_CMD_STATUS_INVALID_COMMAND: 2929 /* 2930 * Some older adapters don't support the CISS version of this 2931 * command. Fall back to using the BMIC version. 2932 */ 2933 error = ciss_notify_abort_bmic(sc); 2934 if (error != 0) 2935 goto out; 2936 break; 2937 2938 case CISS_CMD_STATUS_TARGET_STATUS: 2939 /* 2940 * This can happen if the adapter thinks there wasn't an outstanding 2941 * Notify Event command but we did. We clean up here. 2942 */ 2943 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2944 if (sc->ciss_periodic_notify != NULL) 2945 ciss_release_request(sc->ciss_periodic_notify); 2946 error = 0; 2947 goto out; 2948 } 2949 /* FALLTHROUGH */ 2950 2951 default: 2952 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2953 ciss_name_command_status(command_status)); 2954 error = EIO; 2955 goto out; 2956 } 2957 2958 /* 2959 * Sleep waiting for the notifier command to complete. Note 2960 * that if it doesn't, we may end up in a bad situation, since 2961 * the adapter may deliver it later. Also note that the adapter 2962 * requires the Notify Event command to be cancelled in order to 2963 * maintain internal bookkeeping. 2964 */ 2965 s = splcam(); 2966 while (sc->ciss_periodic_notify != NULL) { 2967 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2968 if (error == EWOULDBLOCK) { 2969 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2970 break; 2971 } 2972 } 2973 splx(s); 2974 2975 out: 2976 /* release the cancel request */ 2977 if (cr != NULL) { 2978 if (cr->cr_data != NULL) 2979 free(cr->cr_data, CISS_MALLOC_CLASS); 2980 ciss_release_request(cr); 2981 } 2982 if (error == 0) 2983 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2984 return(error); 2985} 2986 2987/************************************************************************ 2988 * Abort the Notify Event chain using a BMIC command. 2989 */ 2990static int 2991ciss_notify_abort_bmic(struct ciss_softc *sc) 2992{ 2993 struct ciss_request *cr; 2994 int error, command_status; 2995 2996 debug_called(1); 2997 2998 cr = NULL; 2999 error = 0; 3000 3001 /* verify that there's an outstanding command */ 3002 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3003 goto out; 3004 3005 /* 3006 * Build a BMIC command to cancel the Notify on Event command. 3007 * 3008 * Note that we are sending a CISS opcode here. Odd. 3009 */ 3010 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3011 NULL, 0)) != 0) 3012 goto out; 3013 3014 /* 3015 * Submit the request and wait for it to complete. 3016 */ 3017 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3018 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3019 goto out; 3020 } 3021 3022 /* 3023 * Check response. 3024 */ 3025 ciss_report_request(cr, &command_status, NULL); 3026 switch(command_status) { 3027 case CISS_CMD_STATUS_SUCCESS: 3028 break; 3029 default: 3030 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3031 ciss_name_command_status(command_status)); 3032 error = EIO; 3033 goto out; 3034 } 3035 3036out: 3037 if (cr != NULL) 3038 ciss_release_request(cr); 3039 return(error); 3040} 3041 3042/************************************************************************ 3043 * Handle a notify event relating to the status of a logical drive. 3044 * 3045 * XXX need to be able to defer some of these to properly handle 3046 * calling the "ID Physical drive" command, unless the 'extended' 3047 * drive IDs are always in BIG_MAP format. 3048 */ 3049static void 3050ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3051{ 3052 struct ciss_ldrive *ld; 3053 int ostatus; 3054 3055 debug_called(2); 3056 3057 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3058 3059 switch (cn->subclass) { 3060 case CISS_NOTIFY_LOGICAL_STATUS: 3061 switch (cn->detail) { 3062 case 0: 3063 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3064 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3065 cn->data.logical_status.logical_drive, ld->cl_name, 3066 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3067 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3068 cn->data.logical_status.spare_state, 3069 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3070 3071 /* 3072 * Update our idea of the drive's status. 3073 */ 3074 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3075 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3076 if (ld->cl_lstatus != NULL) 3077 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3078 3079#if 0 3080 /* 3081 * Have CAM rescan the drive if its status has changed. 3082 */ 3083 if (ostatus != ld->cl_status) 3084 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3085#endif 3086 3087 break; 3088 3089 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3090 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3091 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3092 cn->data.logical_status.logical_drive, ld->cl_name); 3093 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3094 break; 3095 3096 case 2: 3097 case 3: 3098 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3099 cn->data.rebuild_aborted.logical_drive, 3100 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3101 (cn->detail == 2) ? "read" : "write"); 3102 break; 3103 } 3104 break; 3105 3106 case CISS_NOTIFY_LOGICAL_ERROR: 3107 if (cn->detail == 0) { 3108 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3109 cn->data.io_error.logical_drive, 3110 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3111 cn->data.io_error.failure_bus, 3112 cn->data.io_error.failure_drive); 3113 /* XXX should we take the drive down at this point, or will we be told? */ 3114 } 3115 break; 3116 3117 case CISS_NOTIFY_LOGICAL_SURFACE: 3118 if (cn->detail == 0) 3119 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3120 cn->data.consistency_completed.logical_drive, 3121 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3122 break; 3123 } 3124} 3125 3126/************************************************************************ 3127 * Handle a notify event relating to the status of a physical drive. 3128 */ 3129static void 3130ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3131{ 3132 3133} 3134 3135/************************************************************************ 3136 * Print a request. 3137 */ 3138static void 3139ciss_print_request(struct ciss_request *cr) 3140{ 3141 struct ciss_softc *sc; 3142 struct ciss_command *cc; 3143 int i; 3144 3145 sc = cr->cr_sc; 3146 cc = CISS_FIND_COMMAND(cr); 3147 3148 ciss_printf(sc, "REQUEST @ %p\n", cr); 3149 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3150 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3151 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3152 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3153 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3154 switch(cc->header.address.mode.mode) { 3155 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3156 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3157 ciss_printf(sc, " physical bus %d target %d\n", 3158 cc->header.address.physical.bus, cc->header.address.physical.target); 3159 break; 3160 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3161 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3162 break; 3163 } 3164 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3165 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3166 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3167 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3168 cc->cdb.cdb_length, 3169 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3170 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3171 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3172 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3173 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3174 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3175 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3176 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3177 3178 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3179 /* XXX print error info */ 3180 } else { 3181 /* since we don't use chained s/g, don't support it here */ 3182 for (i = 0; i < cc->header.sg_in_list; i++) { 3183 if ((i % 4) == 0) 3184 ciss_printf(sc, " "); 3185 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3186 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3187 printf("\n"); 3188 } 3189 } 3190} 3191 3192/************************************************************************ 3193 * Print information about the status of a logical drive. 3194 */ 3195static void 3196ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3197{ 3198 int bus, target, i; 3199 3200 if (ld->cl_lstatus == NULL) { 3201 printf("does not exist\n"); 3202 return; 3203 } 3204 3205 /* print drive status */ 3206 switch(ld->cl_lstatus->status) { 3207 case CISS_LSTATUS_OK: 3208 printf("online\n"); 3209 break; 3210 case CISS_LSTATUS_INTERIM_RECOVERY: 3211 printf("in interim recovery mode\n"); 3212 break; 3213 case CISS_LSTATUS_READY_RECOVERY: 3214 printf("ready to begin recovery\n"); 3215 break; 3216 case CISS_LSTATUS_RECOVERING: 3217 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3218 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3219 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3220 bus, target, ld->cl_lstatus->blocks_to_recover); 3221 break; 3222 case CISS_LSTATUS_EXPANDING: 3223 printf("being expanded, %u blocks remaining\n", 3224 ld->cl_lstatus->blocks_to_recover); 3225 break; 3226 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3227 printf("queued for expansion\n"); 3228 break; 3229 case CISS_LSTATUS_FAILED: 3230 printf("queued for expansion\n"); 3231 break; 3232 case CISS_LSTATUS_WRONG_PDRIVE: 3233 printf("wrong physical drive inserted\n"); 3234 break; 3235 case CISS_LSTATUS_MISSING_PDRIVE: 3236 printf("missing a needed physical drive\n"); 3237 break; 3238 case CISS_LSTATUS_BECOMING_READY: 3239 printf("becoming ready\n"); 3240 break; 3241 } 3242 3243 /* print failed physical drives */ 3244 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3245 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3246 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3247 if (bus == -1) 3248 continue; 3249 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3250 ld->cl_lstatus->drive_failure_map[i]); 3251 } 3252} 3253 3254#ifdef CISS_DEBUG 3255/************************************************************************ 3256 * Print information about the controller/driver. 3257 */ 3258static void 3259ciss_print_adapter(struct ciss_softc *sc) 3260{ 3261 int i; 3262 3263 ciss_printf(sc, "ADAPTER:\n"); 3264 for (i = 0; i < CISSQ_COUNT; i++) { 3265 ciss_printf(sc, "%s %d/%d\n", 3266 i == 0 ? "free" : 3267 i == 1 ? "busy" : "complete", 3268 sc->ciss_qstat[i].q_length, 3269 sc->ciss_qstat[i].q_max); 3270 } 3271 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3272 ciss_printf(sc, "notify_head/tail %d/%d\n", 3273 sc->ciss_notify_head, sc->ciss_notify_tail); 3274 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3275 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3276 3277 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3278 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3279 ciss_print_ldrive(sc, sc->ciss_logical + i); 3280 } 3281 3282 for (i = 1; i < sc->ciss_max_requests; i++) 3283 ciss_print_request(sc->ciss_request + i); 3284} 3285 3286/* DDB hook */ 3287static void 3288ciss_print0(void) 3289{ 3290 struct ciss_softc *sc; 3291 3292 sc = devclass_get_softc(devclass_find("ciss"), 0); 3293 if (sc == NULL) { 3294 printf("no ciss controllers\n"); 3295 } else { 3296 ciss_print_adapter(sc); 3297 } 3298} 3299#endif 3300 3301/************************************************************************ 3302 * Return a name for a logical drive status value. 3303 */ 3304static const char * 3305ciss_name_ldrive_status(int status) 3306{ 3307 switch (status) { 3308 case CISS_LSTATUS_OK: 3309 return("OK"); 3310 case CISS_LSTATUS_FAILED: 3311 return("failed"); 3312 case CISS_LSTATUS_NOT_CONFIGURED: 3313 return("not configured"); 3314 case CISS_LSTATUS_INTERIM_RECOVERY: 3315 return("interim recovery"); 3316 case CISS_LSTATUS_READY_RECOVERY: 3317 return("ready for recovery"); 3318 case CISS_LSTATUS_RECOVERING: 3319 return("recovering"); 3320 case CISS_LSTATUS_WRONG_PDRIVE: 3321 return("wrong physical drive inserted"); 3322 case CISS_LSTATUS_MISSING_PDRIVE: 3323 return("missing physical drive"); 3324 case CISS_LSTATUS_EXPANDING: 3325 return("expanding"); 3326 case CISS_LSTATUS_BECOMING_READY: 3327 return("becoming ready"); 3328 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3329 return("queued for expansion"); 3330 } 3331 return("unknown status"); 3332} 3333 3334/************************************************************************ 3335 * Return an online/offline/nonexistent value for a logical drive 3336 * status value. 3337 */ 3338static int 3339ciss_decode_ldrive_status(int status) 3340{ 3341 switch(status) { 3342 case CISS_LSTATUS_NOT_CONFIGURED: 3343 return(CISS_LD_NONEXISTENT); 3344 3345 case CISS_LSTATUS_OK: 3346 case CISS_LSTATUS_INTERIM_RECOVERY: 3347 case CISS_LSTATUS_READY_RECOVERY: 3348 case CISS_LSTATUS_RECOVERING: 3349 case CISS_LSTATUS_EXPANDING: 3350 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3351 return(CISS_LD_ONLINE); 3352 3353 case CISS_LSTATUS_FAILED: 3354 case CISS_LSTATUS_WRONG_PDRIVE: 3355 case CISS_LSTATUS_MISSING_PDRIVE: 3356 case CISS_LSTATUS_BECOMING_READY: 3357 default: 3358 return(CISS_LD_OFFLINE); 3359 } 3360} 3361 3362 3363/************************************************************************ 3364 * Return a name for a logical drive's organisation. 3365 */ 3366static const char * 3367ciss_name_ldrive_org(int org) 3368{ 3369 switch(org) { 3370 case CISS_LDRIVE_RAID0: 3371 return("RAID 0"); 3372 case CISS_LDRIVE_RAID1: 3373 return("RAID 1"); 3374 case CISS_LDRIVE_RAID4: 3375 return("RAID 4"); 3376 case CISS_LDRIVE_RAID5: 3377 return("RAID 5"); 3378 case CISS_LDRIVE_RAID51: 3379 return("RAID 5+1"); 3380 case CISS_LDRIVE_RAIDADG: 3381 return("RAID ADG"); 3382 } 3383 return("unkown"); 3384} 3385 3386/************************************************************************ 3387 * Return a name for a command status value. 3388 */ 3389static const char * 3390ciss_name_command_status(int status) 3391{ 3392 switch(status) { 3393 case CISS_CMD_STATUS_SUCCESS: 3394 return("success"); 3395 case CISS_CMD_STATUS_TARGET_STATUS: 3396 return("target status"); 3397 case CISS_CMD_STATUS_DATA_UNDERRUN: 3398 return("data underrun"); 3399 case CISS_CMD_STATUS_DATA_OVERRUN: 3400 return("data overrun"); 3401 case CISS_CMD_STATUS_INVALID_COMMAND: 3402 return("invalid command"); 3403 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3404 return("protocol error"); 3405 case CISS_CMD_STATUS_HARDWARE_ERROR: 3406 return("hardware error"); 3407 case CISS_CMD_STATUS_CONNECTION_LOST: 3408 return("connection lost"); 3409 case CISS_CMD_STATUS_ABORTED: 3410 return("aborted"); 3411 case CISS_CMD_STATUS_ABORT_FAILED: 3412 return("abort failed"); 3413 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3414 return("unsolicited abort"); 3415 case CISS_CMD_STATUS_TIMEOUT: 3416 return("timeout"); 3417 case CISS_CMD_STATUS_UNABORTABLE: 3418 return("unabortable"); 3419 } 3420 return("unknown status"); 3421} 3422 3423/************************************************************************ 3424 * Handle an open on the control device. 3425 */ 3426static int 3427ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3428{ 3429 struct ciss_softc *sc; 3430 3431 debug_called(1); 3432 3433 sc = (struct ciss_softc *)dev->si_drv1; 3434 3435 /* we might want to veto if someone already has us open */ 3436 3437 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3438 return(0); 3439} 3440 3441/************************************************************************ 3442 * Handle the last close on the control device. 3443 */ 3444static int 3445ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3446{ 3447 struct ciss_softc *sc; 3448 3449 debug_called(1); 3450 3451 sc = (struct ciss_softc *)dev->si_drv1; 3452 3453 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3454 return (0); 3455} 3456 3457/******************************************************************************** 3458 * Handle adapter-specific control operations. 3459 * 3460 * Note that the API here is compatible with the Linux driver, in order to 3461 * simplify the porting of Compaq's userland tools. 3462 */ 3463static int 3464ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3465{ 3466 struct ciss_softc *sc; 3467 int error; 3468 3469 debug_called(1); 3470 3471 sc = (struct ciss_softc *)dev->si_drv1; 3472 error = 0; 3473 3474 switch(cmd) { 3475 case CCISS_GETPCIINFO: 3476 { 3477 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3478 3479 pis->bus = pci_get_bus(sc->ciss_dev); 3480 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3481 pis->board_id = pci_get_devid(sc->ciss_dev); 3482 3483 break; 3484 } 3485 3486 case CCISS_GETINTINFO: 3487 { 3488 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3489 3490 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3491 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3492 3493 break; 3494 } 3495 3496 case CCISS_SETINTINFO: 3497 { 3498 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3499 3500 if ((cis->delay == 0) && (cis->count == 0)) { 3501 error = EINVAL; 3502 break; 3503 } 3504 3505 /* 3506 * XXX apparently this is only safe if the controller is idle, 3507 * we should suspend it before doing this. 3508 */ 3509 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3510 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3511 3512 if (ciss_update_config(sc)) 3513 error = EIO; 3514 3515 /* XXX resume the controller here */ 3516 break; 3517 } 3518 3519 case CCISS_GETNODENAME: 3520 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3521 sizeof(NodeName_type)); 3522 break; 3523 3524 case CCISS_SETNODENAME: 3525 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3526 sizeof(NodeName_type)); 3527 if (ciss_update_config(sc)) 3528 error = EIO; 3529 break; 3530 3531 case CCISS_GETHEARTBEAT: 3532 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3533 break; 3534 3535 case CCISS_GETBUSTYPES: 3536 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3537 break; 3538 3539 case CCISS_GETFIRMVER: 3540 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3541 sizeof(FirmwareVer_type)); 3542 break; 3543 3544 case CCISS_GETDRIVERVER: 3545 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3546 break; 3547 3548 case CCISS_REVALIDVOLS: 3549 /* 3550 * This is a bit ugly; to do it "right" we really need 3551 * to find any disks that have changed, kick CAM off them, 3552 * then rescan only these disks. It'd be nice if they 3553 * a) told us which disk(s) they were going to play with, 3554 * and b) which ones had arrived. 8( 3555 */ 3556 break; 3557 3558 case CCISS_PASSTHRU: 3559 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3560 break; 3561 3562 default: 3563 debug(0, "unknown ioctl 0x%lx", cmd); 3564 3565 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3566 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3567 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3568 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3569 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3570 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3571 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3572 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3573 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3574 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3575 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3576 3577 error = ENOIOCTL; 3578 break; 3579 } 3580 3581 return(error); 3582} 3583