ciss.c revision 111119
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 111119 2003-02-19 05:47:46Z imp $ 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/devicestat.h> 78#include <sys/stat.h> 79#include <sys/stdint.h> 80 81#include <cam/cam.h> 82#include <cam/cam_ccb.h> 83#include <cam/cam_periph.h> 84#include <cam/cam_sim.h> 85#include <cam/cam_xpt_sim.h> 86#include <cam/scsi/scsi_all.h> 87#include <cam/scsi/scsi_message.h> 88 89#include <machine/clock.h> 90#include <machine/bus_memio.h> 91#include <machine/bus.h> 92#include <machine/endian.h> 93#include <machine/resource.h> 94#include <sys/rman.h> 95 96#include <pci/pcireg.h> 97#include <pci/pcivar.h> 98 99#include <dev/ciss/cissreg.h> 100#include <dev/ciss/cissvar.h> 101#include <dev/ciss/cissio.h> 102 103MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 104 105/* pci interface */ 106static int ciss_lookup(device_t dev); 107static int ciss_probe(device_t dev); 108static int ciss_attach(device_t dev); 109static int ciss_detach(device_t dev); 110static int ciss_shutdown(device_t dev); 111 112/* (de)initialisation functions, control wrappers */ 113static int ciss_init_pci(struct ciss_softc *sc); 114static int ciss_wait_adapter(struct ciss_softc *sc); 115static int ciss_flush_adapter(struct ciss_softc *sc); 116static int ciss_init_requests(struct ciss_softc *sc); 117static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 118 int nseg, int error); 119static int ciss_identify_adapter(struct ciss_softc *sc); 120static int ciss_init_logical(struct ciss_softc *sc); 121static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 122static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 123static int ciss_update_config(struct ciss_softc *sc); 124static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 125static void ciss_accept_media_complete(struct ciss_request *cr); 126static void ciss_free(struct ciss_softc *sc); 127 128/* request submission/completion */ 129static int ciss_start(struct ciss_request *cr); 130static void ciss_done(struct ciss_softc *sc); 131static void ciss_intr(void *arg); 132static void ciss_complete(struct ciss_softc *sc); 133static int ciss_report_request(struct ciss_request *cr, int *command_status, 134 int *scsi_status); 135static int ciss_synch_request(struct ciss_request *cr, int timeout); 136static int ciss_poll_request(struct ciss_request *cr, int timeout); 137static int ciss_wait_request(struct ciss_request *cr, int timeout); 138#if 0 139static int ciss_abort_request(struct ciss_request *cr); 140#endif 141 142/* request queueing */ 143static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 144static void ciss_preen_command(struct ciss_request *cr); 145static void ciss_release_request(struct ciss_request *cr); 146 147/* request helpers */ 148static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 149 int opcode, void **bufp, size_t bufsize); 150static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 151 152/* DMA map/unmap */ 153static int ciss_map_request(struct ciss_request *cr); 154static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 155 int nseg, int error); 156static void ciss_unmap_request(struct ciss_request *cr); 157 158/* CAM interface */ 159static int ciss_cam_init(struct ciss_softc *sc); 160static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 161static void ciss_cam_rescan_all(struct ciss_softc *sc); 162static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 163static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 164static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 165static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 166static void ciss_cam_poll(struct cam_sim *sim); 167static void ciss_cam_complete(struct ciss_request *cr); 168static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 169static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 170static int ciss_name_device(struct ciss_softc *sc, int target); 171 172/* periodic status monitoring */ 173static void ciss_periodic(void *arg); 174static void ciss_notify_event(struct ciss_softc *sc); 175static void ciss_notify_complete(struct ciss_request *cr); 176static int ciss_notify_abort(struct ciss_softc *sc); 177static int ciss_notify_abort_bmic(struct ciss_softc *sc); 178static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 179static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 180 181/* debugging output */ 182static void ciss_print_request(struct ciss_request *cr); 183static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 184static const char *ciss_name_ldrive_status(int status); 185static int ciss_decode_ldrive_status(int status); 186static const char *ciss_name_ldrive_org(int org); 187static const char *ciss_name_command_status(int status); 188 189/* 190 * PCI bus interface. 191 */ 192static device_method_t ciss_methods[] = { 193 /* Device interface */ 194 DEVMETHOD(device_probe, ciss_probe), 195 DEVMETHOD(device_attach, ciss_attach), 196 DEVMETHOD(device_detach, ciss_detach), 197 DEVMETHOD(device_shutdown, ciss_shutdown), 198 { 0, 0 } 199}; 200 201static driver_t ciss_pci_driver = { 202 "ciss", 203 ciss_methods, 204 sizeof(struct ciss_softc) 205}; 206 207static devclass_t ciss_devclass; 208DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 209 210/* 211 * Control device interface. 212 */ 213static d_open_t ciss_open; 214static d_close_t ciss_close; 215static d_ioctl_t ciss_ioctl; 216 217#define CISS_CDEV_MAJOR 166 218 219static struct cdevsw ciss_cdevsw = { 220 ciss_open, ciss_close, noread, nowrite, ciss_ioctl, 221 nopoll, nommap, nostrategy, "ciss", CISS_CDEV_MAJOR, 222 nodump, nopsize, 0, nokqfilter 223}; 224 225/************************************************************************ 226 * CISS adapters amazingly don't have a defined programming interface 227 * value. (One could say some very despairing things about PCI and 228 * people just not getting the general idea.) So we are forced to 229 * stick with matching against subvendor/subdevice, and thus have to 230 * be updated for every new CISS adapter that appears. 231 */ 232#define CISS_BOARD_SA5 (1<<0) 233#define CISS_BOARD_SA5B (1<<1) 234 235static struct 236{ 237 u_int16_t subvendor; 238 u_int16_t subdevice; 239 int flags; 240 char *desc; 241} ciss_vendor_data[] = { 242 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 243 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 244 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 245 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 246 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 247 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 248 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 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_32BIT, /* lowaddr */ 597 BUS_SPACE_MAXADDR, /* highaddr */ 598 NULL, NULL, /* filter, filterarg */ 599 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 600 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 601 BUS_DMA_ALLOCNOW, /* flags */ 602 &sc->ciss_parent_dmat)) { 603 ciss_printf(sc, "can't allocate parent DMA tag\n"); 604 return(ENOMEM); 605 } 606 607 /* 608 * Create DMA tag for mapping buffers into adapter-addressable 609 * space. 610 */ 611 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 612 1, 0, /* alignment, boundary */ 613 BUS_SPACE_MAXADDR, /* lowaddr */ 614 BUS_SPACE_MAXADDR, /* highaddr */ 615 NULL, NULL, /* filter, filterarg */ 616 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 617 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 618 0, /* flags */ 619 &sc->ciss_buffer_dmat)) { 620 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 621 return(ENOMEM); 622 } 623 return(0); 624} 625 626/************************************************************************ 627 * Wait for the adapter to come ready. 628 */ 629static int 630ciss_wait_adapter(struct ciss_softc *sc) 631{ 632 int i; 633 634 debug_called(1); 635 636 /* 637 * Wait for the adapter to come ready. 638 */ 639 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 640 ciss_printf(sc, "waiting for adapter to come ready...\n"); 641 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 642 DELAY(1000000); /* one second */ 643 if (i > 30) { 644 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 645 return(EIO); 646 } 647 } 648 } 649 return(0); 650} 651 652/************************************************************************ 653 * Flush the adapter cache. 654 */ 655static int 656ciss_flush_adapter(struct ciss_softc *sc) 657{ 658 struct ciss_request *cr; 659 struct ciss_bmic_flush_cache *cbfc; 660 int error, command_status; 661 662 debug_called(1); 663 664 cr = NULL; 665 cbfc = NULL; 666 667 /* 668 * Build a BMIC request to flush the cache. We don't disable 669 * it, as we may be going to do more I/O (eg. we are emulating 670 * the Synchronise Cache command). 671 */ 672 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 673 error = ENOMEM; 674 goto out; 675 } 676 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 677 (void **)&cbfc, sizeof(*cbfc))) != 0) 678 goto out; 679 680 /* 681 * Submit the request and wait for it to complete. 682 */ 683 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 684 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 685 goto out; 686 } 687 688 /* 689 * Check response. 690 */ 691 ciss_report_request(cr, &command_status, NULL); 692 switch(command_status) { 693 case CISS_CMD_STATUS_SUCCESS: 694 break; 695 default: 696 ciss_printf(sc, "error flushing cache (%s)\n", 697 ciss_name_command_status(command_status)); 698 error = EIO; 699 goto out; 700 } 701 702out: 703 if (cbfc != NULL) 704 free(cbfc, CISS_MALLOC_CLASS); 705 if (cr != NULL) 706 ciss_release_request(cr); 707 return(error); 708} 709 710/************************************************************************ 711 * Allocate memory for the adapter command structures, initialise 712 * the request structures. 713 * 714 * Note that the entire set of commands are allocated in a single 715 * contiguous slab. 716 */ 717static int 718ciss_init_requests(struct ciss_softc *sc) 719{ 720 struct ciss_request *cr; 721 int i; 722 723 debug_called(1); 724 725 /* 726 * Calculate the number of request structures/commands we are 727 * going to provide for this adapter. 728 */ 729 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 730 731 if (1/*bootverbose*/) 732 ciss_printf(sc, "using %d of %d available commands\n", 733 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 734 735 /* 736 * Create the DMA tag for commands. 737 */ 738 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 739 1, 0, /* alignment, boundary */ 740 BUS_SPACE_MAXADDR, /* lowaddr */ 741 BUS_SPACE_MAXADDR, /* highaddr */ 742 NULL, NULL, /* filter, filterarg */ 743 CISS_COMMAND_ALLOC_SIZE * 744 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 745 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 746 0, /* flags */ 747 &sc->ciss_command_dmat)) { 748 ciss_printf(sc, "can't allocate command DMA tag\n"); 749 return(ENOMEM); 750 } 751 /* 752 * Allocate memory and make it available for DMA. 753 */ 754 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 755 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 756 ciss_printf(sc, "can't allocate command memory\n"); 757 return(ENOMEM); 758 } 759 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 760 sizeof(struct ciss_command) * sc->ciss_max_requests, 761 ciss_command_map_helper, sc, 0); 762 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 763 764 /* 765 * Set up the request and command structures, push requests onto 766 * the free queue. 767 */ 768 for (i = 1; i < sc->ciss_max_requests; i++) { 769 cr = &sc->ciss_request[i]; 770 cr->cr_sc = sc; 771 cr->cr_tag = i; 772 ciss_enqueue_free(cr); 773 } 774 return(0); 775} 776 777static void 778ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 779{ 780 struct ciss_softc *sc = (struct ciss_softc *)arg; 781 782 sc->ciss_command_phys = segs->ds_addr; 783} 784 785/************************************************************************ 786 * Identify the adapter, print some information about it. 787 */ 788static int 789ciss_identify_adapter(struct ciss_softc *sc) 790{ 791 struct ciss_request *cr; 792 int error, command_status; 793 794 debug_called(1); 795 796 cr = NULL; 797 798 /* 799 * Get a request, allocate storage for the adapter data. 800 */ 801 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 802 (void **)&sc->ciss_id, 803 sizeof(*sc->ciss_id))) != 0) 804 goto out; 805 806 /* 807 * Submit the request and wait for it to complete. 808 */ 809 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 810 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 811 goto out; 812 } 813 814 /* 815 * Check response. 816 */ 817 ciss_report_request(cr, &command_status, NULL); 818 switch(command_status) { 819 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 820 break; 821 case CISS_CMD_STATUS_DATA_UNDERRUN: 822 case CISS_CMD_STATUS_DATA_OVERRUN: 823 ciss_printf(sc, "data over/underrun reading adapter information\n"); 824 default: 825 ciss_printf(sc, "error reading adapter information (%s)\n", 826 ciss_name_command_status(command_status)); 827 error = EIO; 828 goto out; 829 } 830 831 /* sanity-check reply */ 832 if (!sc->ciss_id->big_map_supported) { 833 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 834 error = ENXIO; 835 goto out; 836 } 837 838#if 0 839 /* XXX later revisions may not need this */ 840 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 841#endif 842 843 /* XXX only really required for old 5300 adapters? */ 844 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 845 846 /* print information */ 847 if (1/*bootverbose*/) { 848 ciss_printf(sc, " %d logical drive%s configured\n", 849 sc->ciss_id->configured_logical_drives, 850 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 851 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 852 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 853 854 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 855 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 856 ciss_printf(sc, " supported I/O methods 0x%b\n", 857 sc->ciss_cfg->supported_methods, 858 "\20\1READY\2simple\3performant\4MEMQ\n"); 859 ciss_printf(sc, " active I/O method 0x%b\n", 860 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 861 ciss_printf(sc, " 4G page base 0x%08x\n", 862 sc->ciss_cfg->command_physlimit); 863 ciss_printf(sc, " interrupt coalesce delay %dus\n", 864 sc->ciss_cfg->interrupt_coalesce_delay); 865 ciss_printf(sc, " interrupt coalesce count %d\n", 866 sc->ciss_cfg->interrupt_coalesce_count); 867 ciss_printf(sc, " max outstanding commands %d\n", 868 sc->ciss_cfg->max_outstanding_commands); 869 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 870 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 871 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 872 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 873 } 874 875out: 876 if (error) { 877 if (sc->ciss_id != NULL) { 878 free(sc->ciss_id, CISS_MALLOC_CLASS); 879 sc->ciss_id = NULL; 880 } 881 } 882 if (cr != NULL) 883 ciss_release_request(cr); 884 return(error); 885} 886 887/************************************************************************ 888 * Find logical drives on the adapter. 889 */ 890static int 891ciss_init_logical(struct ciss_softc *sc) 892{ 893 struct ciss_request *cr; 894 struct ciss_command *cc; 895 struct ciss_report_cdb *crc; 896 struct ciss_lun_report *cll; 897 int error, i; 898 size_t report_size; 899 int ndrives; 900 int command_status; 901 902 debug_called(1); 903 904 cr = NULL; 905 cll = NULL; 906 907 /* 908 * Get a request, allocate storage for the address list. 909 */ 910 if ((error = ciss_get_request(sc, &cr)) != 0) 911 goto out; 912 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 913 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 914 ciss_printf(sc, "can't allocate memory for logical drive list\n"); 915 error = ENOMEM; 916 goto out; 917 } 918 919 /* 920 * Build the Report Logical LUNs command. 921 */ 922 cc = CISS_FIND_COMMAND(cr); 923 cr->cr_data = cll; 924 cr->cr_length = report_size; 925 cr->cr_flags = CISS_REQ_DATAIN; 926 927 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 928 cc->header.address.physical.bus = 0; 929 cc->header.address.physical.target = 0; 930 cc->cdb.cdb_length = sizeof(*crc); 931 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 932 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 933 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 934 cc->cdb.timeout = 30; /* XXX better suggestions? */ 935 936 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 937 bzero(crc, sizeof(*crc)); 938 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 939 crc->length = htonl(report_size); /* big-endian field */ 940 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 941 942 /* 943 * Submit the request and wait for it to complete. (timeout 944 * here should be much greater than above) 945 */ 946 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 947 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 948 goto out; 949 } 950 951 /* 952 * Check response. Note that data over/underrun is OK. 953 */ 954 ciss_report_request(cr, &command_status, NULL); 955 switch(command_status) { 956 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 957 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 958 break; 959 case CISS_CMD_STATUS_DATA_OVERRUN: 960 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 961 CISS_MAX_LOGICAL); 962 break; 963 default: 964 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 965 ciss_name_command_status(command_status)); 966 error = EIO; 967 goto out; 968 } 969 ciss_release_request(cr); 970 cr = NULL; 971 972 /* sanity-check reply */ 973 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 974 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 975 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 976 ndrives, CISS_MAX_LOGICAL); 977 return(ENXIO); 978 } 979 980 /* 981 * Save logical drive information. 982 */ 983 if (1/*bootverbose*/) 984 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 985 if (ndrives != sc->ciss_id->configured_logical_drives) 986 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 987 ndrives, sc->ciss_id->configured_logical_drives); 988 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 989 if (i < ndrives) { 990 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 991 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 992 continue; 993 /* 994 * If the drive has had media exchanged, we should bring it online. 995 */ 996 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 997 ciss_accept_media(sc, i, 0); 998 999 } else { 1000 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1001 } 1002 } 1003 error = 0; 1004 1005 out: 1006 /* 1007 * Note that if the error is a timeout, we are taking a slight 1008 * risk here and assuming that the adapter will not respond at a 1009 * later time, scribbling over host memory. 1010 */ 1011 if (cr != NULL) 1012 ciss_release_request(cr); 1013 if (cll != NULL) 1014 free(cll, CISS_MALLOC_CLASS); 1015 return(error); 1016} 1017 1018static int 1019ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1020{ 1021 struct ciss_request *cr; 1022 struct ciss_command *cc; 1023 struct scsi_inquiry *inq; 1024 int error; 1025 int command_status; 1026 int lun; 1027 1028 cr = NULL; 1029 lun = ld->cl_address.logical.lun; 1030 1031 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1032 1033 if ((error = ciss_get_request(sc, &cr)) != 0) 1034 goto out; 1035 1036 cc = CISS_FIND_COMMAND(cr); 1037 cr->cr_data = &ld->cl_geometry; 1038 cr->cr_length = sizeof(ld->cl_geometry); 1039 cr->cr_flags = CISS_REQ_DATAIN; 1040 1041 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1042 cc->header.address.logical.lun = lun; 1043 cc->cdb.cdb_length = 6; 1044 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1045 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1046 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1047 cc->cdb.timeout = 30; 1048 1049 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1050 inq->opcode = INQUIRY; 1051 inq->byte2 = SI_EVPD; 1052 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1053 inq->length = sizeof(ld->cl_geometry); 1054 1055 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1056 ciss_printf(sc, "error getting geometry (%d)\n", error); 1057 goto out; 1058 } 1059 1060 ciss_report_request(cr, &command_status, NULL); 1061 switch(command_status) { 1062 case CISS_CMD_STATUS_SUCCESS: 1063 case CISS_CMD_STATUS_DATA_UNDERRUN: 1064 break; 1065 case CISS_CMD_STATUS_DATA_OVERRUN: 1066 ciss_printf(sc, "WARNING: Data overrun\n"); 1067 break; 1068 default: 1069 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1070 ciss_name_command_status(command_status)); 1071 break; 1072 } 1073 1074out: 1075 if (cr != NULL) 1076 ciss_release_request(cr); 1077 return(error); 1078} 1079/************************************************************************ 1080 * Identify a logical drive, initialise state related to it. 1081 */ 1082static int 1083ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1084{ 1085 struct ciss_request *cr; 1086 struct ciss_command *cc; 1087 struct ciss_bmic_cdb *cbc; 1088 int error, command_status; 1089 1090 debug_called(1); 1091 1092 cr = NULL; 1093 1094 /* 1095 * Build a BMIC request to fetch the drive ID. 1096 */ 1097 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1098 (void **)&ld->cl_ldrive, 1099 sizeof(*ld->cl_ldrive))) != 0) 1100 goto out; 1101 cc = CISS_FIND_COMMAND(cr); 1102 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1103 cbc->log_drive = ld->cl_address.logical.lun; 1104 1105 /* 1106 * Submit the request and wait for it to complete. 1107 */ 1108 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1109 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1110 goto out; 1111 } 1112 1113 /* 1114 * Check response. 1115 */ 1116 ciss_report_request(cr, &command_status, NULL); 1117 switch(command_status) { 1118 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1119 break; 1120 case CISS_CMD_STATUS_DATA_UNDERRUN: 1121 case CISS_CMD_STATUS_DATA_OVERRUN: 1122 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1123 default: 1124 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1125 ciss_name_command_status(command_status)); 1126 error = EIO; 1127 goto out; 1128 } 1129 ciss_release_request(cr); 1130 cr = NULL; 1131 1132 /* 1133 * Build a CISS BMIC command to get the logical drive status. 1134 */ 1135 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1136 goto out; 1137 1138 /* 1139 * Get the logical drive geometry. 1140 */ 1141 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1142 goto out; 1143 1144 /* 1145 * Print the drive's basic characteristics. 1146 */ 1147 if (1/*bootverbose*/) { 1148 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1149 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1150 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1151 ld->cl_ldrive->block_size)); 1152 1153 ciss_print_ldrive(sc, ld); 1154 } 1155out: 1156 if (error != 0) { 1157 /* make the drive not-exist */ 1158 ld->cl_status = CISS_LD_NONEXISTENT; 1159 if (ld->cl_ldrive != NULL) { 1160 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1161 ld->cl_ldrive = NULL; 1162 } 1163 if (ld->cl_lstatus != NULL) { 1164 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1165 ld->cl_lstatus = NULL; 1166 } 1167 } 1168 if (cr != NULL) 1169 ciss_release_request(cr); 1170 1171 return(error); 1172} 1173 1174/************************************************************************ 1175 * Get status for a logical drive. 1176 * 1177 * XXX should we also do this in response to Test Unit Ready? 1178 */ 1179static int 1180ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1181{ 1182 struct ciss_request *cr; 1183 struct ciss_command *cc; 1184 struct ciss_bmic_cdb *cbc; 1185 int error, command_status; 1186 1187 /* 1188 * Build a CISS BMIC command to get the logical drive status. 1189 */ 1190 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1191 (void **)&ld->cl_lstatus, 1192 sizeof(*ld->cl_lstatus))) != 0) 1193 goto out; 1194 cc = CISS_FIND_COMMAND(cr); 1195 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1196 cbc->log_drive = ld->cl_address.logical.lun; 1197 1198 /* 1199 * Submit the request and wait for it to complete. 1200 */ 1201 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1202 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1203 goto out; 1204 } 1205 1206 /* 1207 * Check response. 1208 */ 1209 ciss_report_request(cr, &command_status, NULL); 1210 switch(command_status) { 1211 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1212 break; 1213 case CISS_CMD_STATUS_DATA_UNDERRUN: 1214 case CISS_CMD_STATUS_DATA_OVERRUN: 1215 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1216 default: 1217 ciss_printf(sc, "error reading logical drive status (%s)\n", 1218 ciss_name_command_status(command_status)); 1219 error = EIO; 1220 goto out; 1221 } 1222 1223 /* 1224 * Set the drive's summary status based on the returned status. 1225 * 1226 * XXX testing shows that a failed JBOD drive comes back at next 1227 * boot in "queued for expansion" mode. WTF? 1228 */ 1229 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1230 1231out: 1232 if (cr != NULL) 1233 ciss_release_request(cr); 1234 return(error); 1235} 1236 1237/************************************************************************ 1238 * Notify the adapter of a config update. 1239 */ 1240static int 1241ciss_update_config(struct ciss_softc *sc) 1242{ 1243 int i; 1244 1245 debug_called(1); 1246 1247 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1248 for (i = 0; i < 1000; i++) { 1249 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1250 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1251 return(0); 1252 } 1253 DELAY(1000); 1254 } 1255 return(1); 1256} 1257 1258/************************************************************************ 1259 * Accept new media into a logical drive. 1260 * 1261 * XXX The drive has previously been offline; it would be good if we 1262 * could make sure it's not open right now. 1263 */ 1264static int 1265ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1266{ 1267 struct ciss_request *cr; 1268 struct ciss_command *cc; 1269 struct ciss_bmic_cdb *cbc; 1270 int error; 1271 1272 debug(0, "bringing logical drive %d back online %ssynchronously", 1273 ldrive, async ? "a" : ""); 1274 1275 /* 1276 * Build a CISS BMIC command to bring the drive back online. 1277 */ 1278 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1279 NULL, 0)) != 0) 1280 goto out; 1281 cc = CISS_FIND_COMMAND(cr); 1282 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1283 cbc->log_drive = ldrive; 1284 1285 /* 1286 * Dispatch the request asynchronously if we can't sleep waiting 1287 * for it to complete. 1288 */ 1289 if (async) { 1290 cr->cr_complete = ciss_accept_media_complete; 1291 if ((error = ciss_start(cr)) != 0) 1292 goto out; 1293 return(0); 1294 } else { 1295 /* 1296 * Submit the request and wait for it to complete. 1297 */ 1298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1299 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1300 goto out; 1301 } 1302 } 1303 1304 /* 1305 * Call the completion callback manually. 1306 */ 1307 ciss_accept_media_complete(cr); 1308 return(0); 1309 1310out: 1311 if (cr != NULL) 1312 ciss_release_request(cr); 1313 return(error); 1314} 1315 1316static void 1317ciss_accept_media_complete(struct ciss_request *cr) 1318{ 1319 int command_status; 1320 1321 /* 1322 * Check response. 1323 */ 1324 ciss_report_request(cr, &command_status, NULL); 1325 switch(command_status) { 1326 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1327 /* we should get a logical drive status changed event here */ 1328 break; 1329 default: 1330 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1331 ciss_name_command_status(command_status)); 1332 break; 1333 } 1334 ciss_release_request(cr); 1335} 1336 1337/************************************************************************ 1338 * Release adapter resources. 1339 */ 1340static void 1341ciss_free(struct ciss_softc *sc) 1342{ 1343 debug_called(1); 1344 1345 /* we're going away */ 1346 sc->ciss_flags |= CISS_FLAG_ABORTING; 1347 1348 /* terminate the periodic heartbeat routine */ 1349 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1350 1351 /* cancel the Event Notify chain */ 1352 ciss_notify_abort(sc); 1353 1354 /* free the controller data */ 1355 if (sc->ciss_id != NULL) 1356 free(sc->ciss_id, CISS_MALLOC_CLASS); 1357 1358 /* release I/O resources */ 1359 if (sc->ciss_regs_resource != NULL) 1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1361 sc->ciss_regs_rid, sc->ciss_regs_resource); 1362 if (sc->ciss_cfg_resource != NULL) 1363 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1364 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1365 if (sc->ciss_intr != NULL) 1366 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1367 if (sc->ciss_irq_resource != NULL) 1368 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1369 sc->ciss_irq_rid, sc->ciss_irq_resource); 1370 1371 /* destroy DMA tags */ 1372 if (sc->ciss_parent_dmat) 1373 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1374 if (sc->ciss_buffer_dmat) 1375 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1376 1377 /* destroy command memory and DMA tag */ 1378 if (sc->ciss_command != NULL) { 1379 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1380 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1381 } 1382 if (sc->ciss_buffer_dmat) 1383 bus_dma_tag_destroy(sc->ciss_command_dmat); 1384 1385 /* disconnect from CAM */ 1386 if (sc->ciss_cam_sim) { 1387 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1388 cam_sim_free(sc->ciss_cam_sim, 0); 1389 } 1390 if (sc->ciss_cam_devq) 1391 cam_simq_free(sc->ciss_cam_devq); 1392 /* XXX what about ciss_cam_path? */ 1393} 1394 1395/************************************************************************ 1396 * Give a command to the adapter. 1397 * 1398 * Note that this uses the simple transport layer directly. If we 1399 * want to add support for other layers, we'll need a switch of some 1400 * sort. 1401 * 1402 * Note that the simple transport layer has no way of refusing a 1403 * command; we only have as many request structures as the adapter 1404 * supports commands, so we don't have to check (this presumes that 1405 * the adapter can handle commands as fast as we throw them at it). 1406 */ 1407static int 1408ciss_start(struct ciss_request *cr) 1409{ 1410 struct ciss_command *cc; /* XXX debugging only */ 1411 int error; 1412 1413 cc = CISS_FIND_COMMAND(cr); 1414 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1415 1416 /* 1417 * Map the request's data. 1418 */ 1419 if ((error = ciss_map_request(cr))) 1420 return(error); 1421 1422#if 0 1423 ciss_print_request(cr); 1424#endif 1425 1426 /* 1427 * Post the command to the adapter. 1428 */ 1429 ciss_enqueue_busy(cr); 1430 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1431 1432 return(0); 1433} 1434 1435/************************************************************************ 1436 * Fetch completed request(s) from the adapter, queue them for 1437 * completion handling. 1438 * 1439 * Note that this uses the simple transport layer directly. If we 1440 * want to add support for other layers, we'll need a switch of some 1441 * sort. 1442 * 1443 * Note that the simple transport mechanism does not require any 1444 * reentrancy protection; the OPQ read is atomic. If there is a 1445 * chance of a race with something else that might move the request 1446 * off the busy list, then we will have to lock against that 1447 * (eg. timeouts, etc.) 1448 */ 1449static void 1450ciss_done(struct ciss_softc *sc) 1451{ 1452 struct ciss_request *cr; 1453 struct ciss_command *cc; 1454 u_int32_t tag, index; 1455 int complete; 1456 1457 debug_called(3); 1458 1459 /* 1460 * Loop quickly taking requests from the adapter and moving them 1461 * from the busy queue to the completed queue. 1462 */ 1463 complete = 0; 1464 for (;;) { 1465 1466 /* see if the OPQ contains anything */ 1467 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1468 break; 1469 1470 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1471 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1472 break; 1473 index = tag >> 2; 1474 debug(2, "completed command %d%s", index, 1475 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1476 if (index >= sc->ciss_max_requests) { 1477 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1478 continue; 1479 } 1480 cr = &(sc->ciss_request[index]); 1481 cc = CISS_FIND_COMMAND(cr); 1482 cc->header.host_tag = tag; /* not updated by adapter */ 1483 if (ciss_remove_busy(cr)) { 1484 /* assume this is garbage out of the adapter */ 1485 ciss_printf(sc, "completed nonbusy request %d\n", index); 1486 } else { 1487 ciss_enqueue_complete(cr); 1488 } 1489 complete = 1; 1490 } 1491 1492 /* 1493 * Invoke completion processing. If we can defer this out of 1494 * interrupt context, that'd be good. 1495 */ 1496 if (complete) 1497 ciss_complete(sc); 1498} 1499 1500/************************************************************************ 1501 * Take an interrupt from the adapter. 1502 */ 1503static void 1504ciss_intr(void *arg) 1505{ 1506 struct ciss_softc *sc = (struct ciss_softc *)arg; 1507 1508 /* 1509 * The only interrupt we recognise indicates that there are 1510 * entries in the outbound post queue. 1511 */ 1512 ciss_done(sc); 1513} 1514 1515/************************************************************************ 1516 * Process completed requests. 1517 * 1518 * Requests can be completed in three fashions: 1519 * 1520 * - by invoking a callback function (cr_complete is non-null) 1521 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1522 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1523 */ 1524static void 1525ciss_complete(struct ciss_softc *sc) 1526{ 1527 struct ciss_request *cr; 1528 1529 debug_called(2); 1530 1531 /* 1532 * Loop taking requests off the completed queue and performing 1533 * completion processing on them. 1534 */ 1535 for (;;) { 1536 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1537 break; 1538 ciss_unmap_request(cr); 1539 1540 /* 1541 * If the request has a callback, invoke it. 1542 */ 1543 if (cr->cr_complete != NULL) { 1544 cr->cr_complete(cr); 1545 continue; 1546 } 1547 1548 /* 1549 * If someone is sleeping on this request, wake them up. 1550 */ 1551 if (cr->cr_flags & CISS_REQ_SLEEP) { 1552 cr->cr_flags &= ~CISS_REQ_SLEEP; 1553 wakeup(cr); 1554 continue; 1555 } 1556 1557 /* 1558 * If someone is polling this request for completion, signal. 1559 */ 1560 if (cr->cr_flags & CISS_REQ_POLL) { 1561 cr->cr_flags &= ~CISS_REQ_POLL; 1562 continue; 1563 } 1564 1565 /* 1566 * Give up and throw the request back on the free queue. This 1567 * should never happen; resources will probably be lost. 1568 */ 1569 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1570 ciss_enqueue_free(cr); 1571 } 1572} 1573 1574/************************************************************************ 1575 * Report on the completion status of a request, and pass back SCSI 1576 * and command status values. 1577 */ 1578static int 1579ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1580{ 1581 struct ciss_command *cc; 1582 struct ciss_error_info *ce; 1583 1584 debug_called(2); 1585 1586 cc = CISS_FIND_COMMAND(cr); 1587 ce = (struct ciss_error_info *)&(cc->sg[0]); 1588 1589 /* 1590 * We don't consider data under/overrun an error for the Report 1591 * Logical/Physical LUNs commands. 1592 */ 1593 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1594 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1595 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1596 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1597 debug(2, "ignoring irrelevant under/overrun error"); 1598 } 1599 1600 /* 1601 * Check the command's error bit, if clear, there's no status and 1602 * everything is OK. 1603 */ 1604 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1605 if (scsi_status != NULL) 1606 *scsi_status = SCSI_STATUS_OK; 1607 if (command_status != NULL) 1608 *command_status = CISS_CMD_STATUS_SUCCESS; 1609 return(0); 1610 } else { 1611 if (command_status != NULL) 1612 *command_status = ce->command_status; 1613 if (scsi_status != NULL) { 1614 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1615 *scsi_status = ce->scsi_status; 1616 } else { 1617 *scsi_status = -1; 1618 } 1619 } 1620 if (bootverbose) 1621 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1622 ce->command_status, ciss_name_command_status(ce->command_status), 1623 ce->scsi_status); 1624 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1625 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1626 ce->additional_error_info.invalid_command.offense_size, 1627 ce->additional_error_info.invalid_command.offense_offset, 1628 ce->additional_error_info.invalid_command.offense_value); 1629 } 1630 } 1631 return(1); 1632} 1633 1634/************************************************************************ 1635 * Issue a request and don't return until it's completed. 1636 * 1637 * Depending on adapter status, we may poll or sleep waiting for 1638 * completion. 1639 */ 1640static int 1641ciss_synch_request(struct ciss_request *cr, int timeout) 1642{ 1643 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1644 return(ciss_wait_request(cr, timeout)); 1645 } else { 1646 return(ciss_poll_request(cr, timeout)); 1647 } 1648} 1649 1650/************************************************************************ 1651 * Issue a request and poll for completion. 1652 * 1653 * Timeout in milliseconds. 1654 */ 1655static int 1656ciss_poll_request(struct ciss_request *cr, int timeout) 1657{ 1658 int error; 1659 1660 debug_called(2); 1661 1662 cr->cr_flags |= CISS_REQ_POLL; 1663 if ((error = ciss_start(cr)) != 0) 1664 return(error); 1665 1666 do { 1667 ciss_done(cr->cr_sc); 1668 if (!(cr->cr_flags & CISS_REQ_POLL)) 1669 return(0); 1670 DELAY(1000); 1671 } while (timeout-- >= 0); 1672 return(EWOULDBLOCK); 1673} 1674 1675/************************************************************************ 1676 * Issue a request and sleep waiting for completion. 1677 * 1678 * Timeout in milliseconds. Note that a spurious wakeup will reset 1679 * the timeout. 1680 */ 1681static int 1682ciss_wait_request(struct ciss_request *cr, int timeout) 1683{ 1684 int s, error; 1685 1686 debug_called(2); 1687 1688 cr->cr_flags |= CISS_REQ_SLEEP; 1689 if ((error = ciss_start(cr)) != 0) 1690 return(error); 1691 1692 s = splcam(); 1693 while (cr->cr_flags & CISS_REQ_SLEEP) { 1694 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1695 /* 1696 * On wakeup or interruption due to restartable activity, go 1697 * back and check to see if we're done. 1698 */ 1699 if ((error == 0) || (error == ERESTART)) { 1700 error = 0; 1701 continue; 1702 } 1703 /* 1704 * Timeout, interrupted system call, etc. 1705 */ 1706 break; 1707 } 1708 splx(s); 1709 return(error); 1710} 1711 1712#if 0 1713/************************************************************************ 1714 * Abort a request. Note that a potential exists here to race the 1715 * request being completed; the caller must deal with this. 1716 */ 1717static int 1718ciss_abort_request(struct ciss_request *ar) 1719{ 1720 struct ciss_request *cr; 1721 struct ciss_command *cc; 1722 struct ciss_message_cdb *cmc; 1723 int error; 1724 1725 debug_called(1); 1726 1727 /* get a request */ 1728 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1729 return(error); 1730 1731 /* build the abort command */ 1732 cc = CISS_FIND_COMMAND(cr); 1733 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1734 cc->header.address.physical.target = 0; 1735 cc->header.address.physical.bus = 0; 1736 cc->cdb.cdb_length = sizeof(*cmc); 1737 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1738 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1739 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1740 cc->cdb.timeout = 30; 1741 1742 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1743 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1744 cmc->type = CISS_MESSAGE_ABORT_TASK; 1745 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1746 1747 /* 1748 * Send the request and wait for a response. If we believe we 1749 * aborted the request OK, clear the flag that indicates it's 1750 * running. 1751 */ 1752 error = ciss_synch_request(cr, 35 * 1000); 1753 if (!error) 1754 error = ciss_report_request(cr, NULL, NULL); 1755 ciss_release_request(cr); 1756 1757 return(error); 1758} 1759#endif 1760 1761 1762/************************************************************************ 1763 * Fetch and initialise a request 1764 */ 1765static int 1766ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1767{ 1768 struct ciss_request *cr; 1769 1770 debug_called(2); 1771 1772 /* 1773 * Get a request and clean it up. 1774 */ 1775 if ((cr = ciss_dequeue_free(sc)) == NULL) 1776 return(ENOMEM); 1777 1778 cr->cr_data = NULL; 1779 cr->cr_flags = 0; 1780 cr->cr_complete = NULL; 1781 1782 ciss_preen_command(cr); 1783 *crp = cr; 1784 return(0); 1785} 1786 1787static void 1788ciss_preen_command(struct ciss_request *cr) 1789{ 1790 struct ciss_command *cc; 1791 u_int32_t cmdphys; 1792 1793 /* 1794 * Clean up the command structure. 1795 * 1796 * Note that we set up the error_info structure here, since the 1797 * length can be overwritten by any command. 1798 */ 1799 cc = CISS_FIND_COMMAND(cr); 1800 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1801 cc->header.sg_total = 0; 1802 cc->header.host_tag = cr->cr_tag << 2; 1803 cc->header.host_tag_zeroes = 0; 1804 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1805 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1806 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1807 1808} 1809 1810/************************************************************************ 1811 * Release a request to the free list. 1812 */ 1813static void 1814ciss_release_request(struct ciss_request *cr) 1815{ 1816 struct ciss_softc *sc; 1817 1818 debug_called(2); 1819 1820 sc = cr->cr_sc; 1821 1822 /* release the request to the free queue */ 1823 ciss_requeue_free(cr); 1824} 1825 1826/************************************************************************ 1827 * Allocate a request that will be used to send a BMIC command. Do some 1828 * of the common setup here to avoid duplicating it everywhere else. 1829 */ 1830static int 1831ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1832 int opcode, void **bufp, size_t bufsize) 1833{ 1834 struct ciss_request *cr; 1835 struct ciss_command *cc; 1836 struct ciss_bmic_cdb *cbc; 1837 void *buf; 1838 int error; 1839 int dataout; 1840 1841 debug_called(2); 1842 1843 cr = NULL; 1844 buf = NULL; 1845 1846 /* 1847 * Get a request. 1848 */ 1849 if ((error = ciss_get_request(sc, &cr)) != 0) 1850 goto out; 1851 1852 /* 1853 * Allocate data storage if requested, determine the data direction. 1854 */ 1855 dataout = 0; 1856 if ((bufsize > 0) && (bufp != NULL)) { 1857 if (*bufp == NULL) { 1858 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1859 error = ENOMEM; 1860 goto out; 1861 } 1862 } else { 1863 buf = *bufp; 1864 dataout = 1; /* we are given a buffer, so we are writing */ 1865 } 1866 } 1867 1868 /* 1869 * Build a CISS BMIC command to get the logical drive ID. 1870 */ 1871 cr->cr_data = buf; 1872 cr->cr_length = bufsize; 1873 if (!dataout) 1874 cr->cr_flags = CISS_REQ_DATAIN; 1875 1876 cc = CISS_FIND_COMMAND(cr); 1877 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1878 cc->header.address.physical.bus = 0; 1879 cc->header.address.physical.target = 0; 1880 cc->cdb.cdb_length = sizeof(*cbc); 1881 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1882 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1883 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1884 cc->cdb.timeout = 0; 1885 1886 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1887 bzero(cbc, sizeof(*cbc)); 1888 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1889 cbc->bmic_opcode = opcode; 1890 cbc->size = htons((u_int16_t)bufsize); 1891 1892out: 1893 if (error) { 1894 if (cr != NULL) 1895 ciss_release_request(cr); 1896 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1897 free(buf, CISS_MALLOC_CLASS); 1898 } else { 1899 *crp = cr; 1900 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1901 *bufp = buf; 1902 } 1903 return(error); 1904} 1905 1906/************************************************************************ 1907 * Handle a command passed in from userspace. 1908 */ 1909static int 1910ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1911{ 1912 struct ciss_request *cr; 1913 struct ciss_command *cc; 1914 struct ciss_error_info *ce; 1915 int error; 1916 1917 debug_called(1); 1918 1919 cr = NULL; 1920 1921 /* 1922 * Get a request. 1923 */ 1924 if ((error = ciss_get_request(sc, &cr)) != 0) 1925 goto out; 1926 cc = CISS_FIND_COMMAND(cr); 1927 1928 /* 1929 * Allocate an in-kernel databuffer if required, copy in user data. 1930 */ 1931 cr->cr_length = ioc->buf_size; 1932 if (ioc->buf_size > 0) { 1933 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1934 error = ENOMEM; 1935 goto out; 1936 } 1937 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1938 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1939 goto out; 1940 } 1941 } 1942 1943 /* 1944 * Build the request based on the user command. 1945 */ 1946 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1947 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1948 1949 /* XXX anything else to populate here? */ 1950 1951 /* 1952 * Run the command. 1953 */ 1954 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1955 debug(0, "request failed - %d", error); 1956 goto out; 1957 } 1958 1959 /* 1960 * Copy the results back to the user. 1961 */ 1962 ce = (struct ciss_error_info *)&(cc->sg[0]); 1963 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1964 if ((ioc->buf_size > 0) && 1965 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1966 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1967 goto out; 1968 } 1969 1970 /* done OK */ 1971 error = 0; 1972 1973out: 1974 if ((cr != NULL) && (cr->cr_data != NULL)) 1975 free(cr->cr_data, CISS_MALLOC_CLASS); 1976 if (cr != NULL) 1977 ciss_release_request(cr); 1978 return(error); 1979} 1980 1981/************************************************************************ 1982 * Map a request into bus-visible space, initialise the scatter/gather 1983 * list. 1984 */ 1985static int 1986ciss_map_request(struct ciss_request *cr) 1987{ 1988 struct ciss_softc *sc; 1989 1990 debug_called(2); 1991 1992 sc = cr->cr_sc; 1993 1994 /* check that mapping is necessary */ 1995 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1996 return(0); 1997 1998 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1999 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 2000 2001 if (cr->cr_flags & CISS_REQ_DATAIN) 2002 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2003 if (cr->cr_flags & CISS_REQ_DATAOUT) 2004 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2005 2006 cr->cr_flags |= CISS_REQ_MAPPED; 2007 return(0); 2008} 2009 2010static void 2011ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2012{ 2013 struct ciss_command *cc; 2014 int i; 2015 2016 debug_called(2); 2017 2018 cc = (struct ciss_command *)arg; 2019 for (i = 0; i < nseg; i++) { 2020 cc->sg[i].address = segs[i].ds_addr; 2021 cc->sg[i].length = segs[i].ds_len; 2022 cc->sg[i].extension = 0; 2023 } 2024 /* we leave the s/g table entirely within the command */ 2025 cc->header.sg_in_list = nseg; 2026 cc->header.sg_total = nseg; 2027} 2028 2029/************************************************************************ 2030 * Unmap a request from bus-visible space. 2031 */ 2032static void 2033ciss_unmap_request(struct ciss_request *cr) 2034{ 2035 struct ciss_softc *sc; 2036 2037 debug_called(2); 2038 2039 sc = cr->cr_sc; 2040 2041 /* check that unmapping is necessary */ 2042 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2043 return; 2044 2045 if (cr->cr_flags & CISS_REQ_DATAIN) 2046 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2047 if (cr->cr_flags & CISS_REQ_DATAOUT) 2048 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2049 2050 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2051 cr->cr_flags &= ~CISS_REQ_MAPPED; 2052} 2053 2054/************************************************************************ 2055 * Attach the driver to CAM. 2056 * 2057 * We put all the logical drives on a single SCSI bus. 2058 */ 2059static int 2060ciss_cam_init(struct ciss_softc *sc) 2061{ 2062 2063 debug_called(1); 2064 2065 /* 2066 * Allocate a devq. We can reuse this for the masked physical 2067 * devices if we decide to export these as well. 2068 */ 2069 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2070 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2071 return(ENOMEM); 2072 } 2073 2074 /* 2075 * Create a SIM. 2076 */ 2077 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2078 device_get_unit(sc->ciss_dev), 2079 sc->ciss_max_requests - 2, 2080 1, 2081 sc->ciss_cam_devq)) == NULL) { 2082 ciss_printf(sc, "can't allocate CAM SIM\n"); 2083 return(ENOMEM); 2084 } 2085 2086 /* 2087 * Register bus 0 (the 'logical drives' bus) with this SIM. 2088 */ 2089 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2090 ciss_printf(sc, "can't register SCSI bus 0\n"); 2091 return(ENXIO); 2092 } 2093 2094 /* 2095 * Initiate a rescan of the bus. 2096 */ 2097 ciss_cam_rescan_all(sc); 2098 2099 return(0); 2100} 2101 2102/************************************************************************ 2103 * Initiate a rescan of the 'logical devices' SIM 2104 */ 2105static void 2106ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2107{ 2108 union ccb *ccb; 2109 2110 debug_called(1); 2111 2112 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2113 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2114 return; 2115 } 2116 2117 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2118 != CAM_REQ_CMP) { 2119 ciss_printf(sc, "rescan failed (can't create path)\n"); 2120 return; 2121 } 2122 2123 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2124 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2125 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2126 ccb->crcn.flags = CAM_FLAG_NONE; 2127 xpt_action(ccb); 2128 2129 /* scan is now in progress */ 2130} 2131 2132static void 2133ciss_cam_rescan_all(struct ciss_softc *sc) 2134{ 2135 return(ciss_cam_rescan_target(sc, 0)); 2136} 2137 2138static void 2139ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2140{ 2141 xpt_free_path(ccb->ccb_h.path); 2142 free(ccb, M_TEMP); 2143} 2144 2145/************************************************************************ 2146 * Handle requests coming from CAM 2147 */ 2148static void 2149ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2150{ 2151 struct ciss_softc *sc; 2152 struct ccb_scsiio *csio; 2153 int target; 2154 2155 sc = cam_sim_softc(sim); 2156 csio = (struct ccb_scsiio *)&ccb->csio; 2157 target = csio->ccb_h.target_id; 2158 2159 switch (ccb->ccb_h.func_code) { 2160 2161 /* perform SCSI I/O */ 2162 case XPT_SCSI_IO: 2163 if (!ciss_cam_action_io(sim, csio)) 2164 return; 2165 break; 2166 2167 /* perform geometry calculations */ 2168 case XPT_CALC_GEOMETRY: 2169 { 2170 struct ccb_calc_geometry *ccg = &ccb->ccg; 2171 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2172 2173 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2174 2175 /* 2176 * Use the cached geometry settings unless the fault tolerance 2177 * is invalid. 2178 */ 2179 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2180 u_int32_t secs_per_cylinder; 2181 2182 ccg->heads = 255; 2183 ccg->secs_per_track = 32; 2184 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2185 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2186 } else { 2187 ccg->heads = ld->cl_geometry.heads; 2188 ccg->secs_per_track = ld->cl_geometry.sectors; 2189 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2190 } 2191 ccb->ccb_h.status = CAM_REQ_CMP; 2192 break; 2193 } 2194 2195 /* handle path attribute inquiry */ 2196 case XPT_PATH_INQ: 2197 { 2198 struct ccb_pathinq *cpi = &ccb->cpi; 2199 2200 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2201 2202 cpi->version_num = 1; 2203 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2204 cpi->target_sprt = 0; 2205 cpi->hba_misc = 0; 2206 cpi->max_target = CISS_MAX_LOGICAL; 2207 cpi->max_lun = 0; /* 'logical drive' channel only */ 2208 cpi->initiator_id = CISS_MAX_LOGICAL; 2209 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2210 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2211 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2212 cpi->unit_number = cam_sim_unit(sim); 2213 cpi->bus_id = cam_sim_bus(sim); 2214 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2215 ccb->ccb_h.status = CAM_REQ_CMP; 2216 break; 2217 } 2218 2219 case XPT_GET_TRAN_SETTINGS: 2220 { 2221 struct ccb_trans_settings *cts = &ccb->cts; 2222 int bus, target; 2223 2224 bus = cam_sim_bus(sim); 2225 target = cts->ccb_h.target_id; 2226 2227 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2228 cts->valid = 0; 2229 2230 /* disconnect always OK */ 2231 cts->flags |= CCB_TRANS_DISC_ENB; 2232 cts->valid |= CCB_TRANS_DISC_VALID; 2233 2234 cts->ccb_h.status = CAM_REQ_CMP; 2235 break; 2236 } 2237 2238 default: /* we can't do this */ 2239 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2240 ccb->ccb_h.status = CAM_REQ_INVALID; 2241 break; 2242 } 2243 2244 xpt_done(ccb); 2245} 2246 2247/************************************************************************ 2248 * Handle a CAM SCSI I/O request. 2249 */ 2250static int 2251ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2252{ 2253 struct ciss_softc *sc; 2254 int bus, target; 2255 struct ciss_request *cr; 2256 struct ciss_command *cc; 2257 int error; 2258 2259 sc = cam_sim_softc(sim); 2260 bus = cam_sim_bus(sim); 2261 target = csio->ccb_h.target_id; 2262 2263 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2264 2265 /* check for I/O attempt to nonexistent device */ 2266 if ((bus != 0) || 2267 (target > CISS_MAX_LOGICAL) || 2268 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2269 debug(3, " device does not exist"); 2270 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2271 } 2272 2273 /* firmware does not support commands > 10 bytes */ 2274 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2275 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2276 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2277 } 2278 2279 /* check that the CDB pointer is not to a physical address */ 2280 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2281 debug(3, " CDB pointer is to physical address"); 2282 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2283 } 2284 2285 /* if there is data transfer, it must be to/from a virtual address */ 2286 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2287 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2288 debug(3, " data pointer is to physical address"); 2289 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2290 } 2291 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2292 debug(3, " data has premature s/g setup"); 2293 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2294 } 2295 } 2296 2297 /* abandon aborted ccbs or those that have failed validation */ 2298 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2299 debug(3, "abandoning CCB due to abort/validation failure"); 2300 return(EINVAL); 2301 } 2302 2303 /* handle emulation of some SCSI commands ourself */ 2304 if (ciss_cam_emulate(sc, csio)) 2305 return(0); 2306 2307 /* 2308 * Get a request to manage this command. If we can't, return the 2309 * ccb, freeze the queue and flag so that we unfreeze it when a 2310 * request completes. 2311 */ 2312 if ((error = ciss_get_request(sc, &cr)) != 0) { 2313 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2314 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2315 return(error); 2316 } 2317 2318 /* 2319 * Build the command. 2320 */ 2321 cc = CISS_FIND_COMMAND(cr); 2322 cr->cr_data = csio->data_ptr; 2323 cr->cr_length = csio->dxfer_len; 2324 cr->cr_complete = ciss_cam_complete; 2325 cr->cr_private = csio; 2326 2327 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2328 cc->header.address.logical.lun = target; 2329 cc->cdb.cdb_length = csio->cdb_len; 2330 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2331 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2332 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2333 cr->cr_flags = CISS_REQ_DATAOUT; 2334 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2335 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2336 cr->cr_flags = CISS_REQ_DATAIN; 2337 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2338 } else { 2339 cr->cr_flags = 0; 2340 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2341 } 2342 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2343 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2344 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2345 } else { 2346 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2347 } 2348 2349 /* 2350 * Submit the request to the adapter. 2351 * 2352 * Note that this may fail if we're unable to map the request (and 2353 * if we ever learn a transport layer other than simple, may fail 2354 * if the adapter rejects the command). 2355 */ 2356 if ((error = ciss_start(cr)) != 0) { 2357 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2358 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2359 ciss_release_request(cr); 2360 return(error); 2361 } 2362 2363 return(0); 2364} 2365 2366/************************************************************************ 2367 * Emulate SCSI commands the adapter doesn't handle as we might like. 2368 */ 2369static int 2370ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2371{ 2372 int target; 2373 u_int8_t opcode; 2374 2375 2376 target = csio->ccb_h.target_id; 2377 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2378 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2379 2380 /* 2381 * Handle requests for volumes that don't exist. A selection timeout 2382 * is slightly better than an illegal request. Other errors might be 2383 * better. 2384 */ 2385 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2386 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2387 xpt_done((union ccb *)csio); 2388 return(1); 2389 } 2390 2391 /* 2392 * Handle requests for volumes that exist but are offline. 2393 * 2394 * I/O operations should fail, everything else should work. 2395 */ 2396 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2397 switch(opcode) { 2398 case READ_6: 2399 case READ_10: 2400 case READ_12: 2401 case WRITE_6: 2402 case WRITE_10: 2403 case WRITE_12: 2404 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2405 xpt_done((union ccb *)csio); 2406 return(1); 2407 } 2408 } 2409 2410 2411 /* if we have to fake Synchronise Cache */ 2412 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2413 2414 /* 2415 * If this is a Synchronise Cache command, typically issued when 2416 * a device is closed, flush the adapter and complete now. 2417 */ 2418 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2419 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2420 ciss_flush_adapter(sc); 2421 csio->ccb_h.status = CAM_REQ_CMP; 2422 xpt_done((union ccb *)csio); 2423 return(1); 2424 } 2425 } 2426 2427 return(0); 2428} 2429 2430/************************************************************************ 2431 * Check for possibly-completed commands. 2432 */ 2433static void 2434ciss_cam_poll(struct cam_sim *sim) 2435{ 2436 struct ciss_softc *sc = cam_sim_softc(sim); 2437 2438 debug_called(2); 2439 2440 ciss_done(sc); 2441} 2442 2443/************************************************************************ 2444 * Handle completion of a command - pass results back through the CCB 2445 */ 2446static void 2447ciss_cam_complete(struct ciss_request *cr) 2448{ 2449 struct ciss_softc *sc; 2450 struct ciss_command *cc; 2451 struct ciss_error_info *ce; 2452 struct ccb_scsiio *csio; 2453 int scsi_status; 2454 int command_status; 2455 2456 debug_called(2); 2457 2458 sc = cr->cr_sc; 2459 cc = CISS_FIND_COMMAND(cr); 2460 ce = (struct ciss_error_info *)&(cc->sg[0]); 2461 csio = (struct ccb_scsiio *)cr->cr_private; 2462 2463 /* 2464 * Extract status values from request. 2465 */ 2466 ciss_report_request(cr, &command_status, &scsi_status); 2467 csio->scsi_status = scsi_status; 2468 2469 /* 2470 * Handle specific SCSI status values. 2471 */ 2472 switch(scsi_status) { 2473 /* no status due to adapter error */ 2474 case -1: 2475 debug(0, "adapter error"); 2476 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2477 break; 2478 2479 /* no status due to command completed OK */ 2480 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2481 debug(2, "SCSI_STATUS_OK"); 2482 csio->ccb_h.status = CAM_REQ_CMP; 2483 break; 2484 2485 /* check condition, sense data included */ 2486 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2487 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2488 ce->sense_length, ce->residual_count); 2489 bzero(&csio->sense_data, SSD_FULL_SIZE); 2490 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2491 csio->sense_len = ce->sense_length; 2492 csio->resid = ce->residual_count; 2493 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2494#ifdef CISS_DEBUG 2495 { 2496 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2497 debug(0, "sense key %x", sns->flags & SSD_KEY); 2498 } 2499#endif 2500 break; 2501 2502 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2503 debug(0, "SCSI_STATUS_BUSY"); 2504 csio->ccb_h.status = CAM_SCSI_BUSY; 2505 break; 2506 2507 default: 2508 debug(0, "unknown status 0x%x", csio->scsi_status); 2509 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2510 break; 2511 } 2512 2513 /* handle post-command fixup */ 2514 ciss_cam_complete_fixup(sc, csio); 2515 2516 /* tell CAM we're ready for more commands */ 2517 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2518 2519 xpt_done((union ccb *)csio); 2520 ciss_release_request(cr); 2521} 2522 2523/******************************************************************************** 2524 * Fix up the result of some commands here. 2525 */ 2526static void 2527ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2528{ 2529 struct scsi_inquiry_data *inq; 2530 struct ciss_ldrive *cl; 2531 int target; 2532 2533 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2534 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2535 2536 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2537 target = csio->ccb_h.target_id; 2538 cl = &sc->ciss_logical[target]; 2539 2540 padstr(inq->vendor, "COMPAQ", 8); 2541 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2542 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2543 } 2544} 2545 2546 2547/******************************************************************************** 2548 * Find a peripheral attached at (target) 2549 */ 2550static struct cam_periph * 2551ciss_find_periph(struct ciss_softc *sc, int target) 2552{ 2553 struct cam_periph *periph; 2554 struct cam_path *path; 2555 int status; 2556 2557 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2558 if (status == CAM_REQ_CMP) { 2559 periph = cam_periph_find(path, NULL); 2560 xpt_free_path(path); 2561 } else { 2562 periph = NULL; 2563 } 2564 return(periph); 2565} 2566 2567/******************************************************************************** 2568 * Name the device at (target) 2569 * 2570 * XXX is this strictly correct? 2571 */ 2572static int 2573ciss_name_device(struct ciss_softc *sc, int target) 2574{ 2575 struct cam_periph *periph; 2576 2577 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2578 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2579 return(0); 2580 } 2581 sc->ciss_logical[target].cl_name[0] = 0; 2582 return(ENOENT); 2583} 2584 2585/************************************************************************ 2586 * Periodic status monitoring. 2587 */ 2588static void 2589ciss_periodic(void *arg) 2590{ 2591 struct ciss_softc *sc; 2592 2593 debug_called(1); 2594 2595 sc = (struct ciss_softc *)arg; 2596 2597 /* 2598 * Check the adapter heartbeat. 2599 */ 2600 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2601 sc->ciss_heart_attack++; 2602 debug(0, "adapter heart attack in progress 0x%x/%d", 2603 sc->ciss_heartbeat, sc->ciss_heart_attack); 2604 if (sc->ciss_heart_attack == 3) { 2605 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2606 /* XXX should reset adapter here */ 2607 } 2608 } else { 2609 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2610 sc->ciss_heart_attack = 0; 2611 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2612 } 2613 2614 /* 2615 * If the notify event request has died for some reason, or has 2616 * not started yet, restart it. 2617 */ 2618 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2619 debug(0, "(re)starting Event Notify chain"); 2620 ciss_notify_event(sc); 2621 } 2622 2623 /* 2624 * Reschedule. 2625 */ 2626 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2627 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2628} 2629 2630/************************************************************************ 2631 * Request a notification response from the adapter. 2632 * 2633 * If (cr) is NULL, this is the first request of the adapter, so 2634 * reset the adapter's message pointer and start with the oldest 2635 * message available. 2636 */ 2637static void 2638ciss_notify_event(struct ciss_softc *sc) 2639{ 2640 struct ciss_request *cr; 2641 struct ciss_command *cc; 2642 struct ciss_notify_cdb *cnc; 2643 int error; 2644 2645 debug_called(1); 2646 2647 cr = sc->ciss_periodic_notify; 2648 2649 /* get a request if we don't already have one */ 2650 if (cr == NULL) { 2651 if ((error = ciss_get_request(sc, &cr)) != 0) { 2652 debug(0, "can't get notify event request"); 2653 goto out; 2654 } 2655 sc->ciss_periodic_notify = cr; 2656 cr->cr_complete = ciss_notify_complete; 2657 debug(1, "acquired request %d", cr->cr_tag); 2658 } 2659 2660 /* 2661 * Get a databuffer if we don't already have one, note that the 2662 * adapter command wants a larger buffer than the actual 2663 * structure. 2664 */ 2665 if (cr->cr_data == NULL) { 2666 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2667 debug(0, "can't get notify event request buffer"); 2668 error = ENOMEM; 2669 goto out; 2670 } 2671 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2672 } 2673 2674 /* re-setup the request's command (since we never release it) XXX overkill*/ 2675 ciss_preen_command(cr); 2676 2677 /* (re)build the notify event command */ 2678 cc = CISS_FIND_COMMAND(cr); 2679 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2680 cc->header.address.physical.bus = 0; 2681 cc->header.address.physical.target = 0; 2682 2683 cc->cdb.cdb_length = sizeof(*cnc); 2684 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2685 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2686 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2687 cc->cdb.timeout = 0; /* no timeout, we hope */ 2688 2689 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2690 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2691 cnc->opcode = CISS_OPCODE_READ; 2692 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2693 cnc->timeout = 0; /* no timeout, we hope */ 2694 cnc->synchronous = 0; 2695 cnc->ordered = 0; 2696 cnc->seek_to_oldest = 0; 2697 cnc->new_only = 0; 2698 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2699 2700 /* submit the request */ 2701 error = ciss_start(cr); 2702 2703 out: 2704 if (error) { 2705 if (cr != NULL) { 2706 if (cr->cr_data != NULL) 2707 free(cr->cr_data, CISS_MALLOC_CLASS); 2708 ciss_release_request(cr); 2709 } 2710 sc->ciss_periodic_notify = NULL; 2711 debug(0, "can't submit notify event request"); 2712 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2713 } else { 2714 debug(1, "notify event submitted"); 2715 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2716 } 2717} 2718 2719static void 2720ciss_notify_complete(struct ciss_request *cr) 2721{ 2722 struct ciss_command *cc; 2723 struct ciss_notify *cn; 2724 struct ciss_softc *sc; 2725 int scsi_status; 2726 int command_status; 2727 2728 debug_called(1); 2729 2730 cc = CISS_FIND_COMMAND(cr); 2731 cn = (struct ciss_notify *)cr->cr_data; 2732 sc = cr->cr_sc; 2733 2734 /* 2735 * Report request results, decode status. 2736 */ 2737 ciss_report_request(cr, &command_status, &scsi_status); 2738 2739 /* 2740 * Abort the chain on a fatal error. 2741 * 2742 * XXX which of these are actually errors? 2743 */ 2744 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2745 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2746 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2747 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2748 ciss_name_command_status(command_status)); 2749 ciss_release_request(cr); 2750 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2751 return; 2752 } 2753 2754 /* 2755 * If the adapter gave us a text message, print it. 2756 */ 2757 if (cn->message[0] != 0) 2758 ciss_printf(sc, "*** %.80s\n", cn->message); 2759 2760 debug(0, "notify event class %d subclass %d detail %d", 2761 cn->class, cn->subclass, cn->detail); 2762 2763 /* 2764 * If there's room, save the event for a user-level tool. 2765 */ 2766 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2767 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2768 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2769 } 2770 2771 /* 2772 * Some events are directly of interest to us. 2773 */ 2774 switch (cn->class) { 2775 case CISS_NOTIFY_LOGICAL: 2776 ciss_notify_logical(sc, cn); 2777 break; 2778 case CISS_NOTIFY_PHYSICAL: 2779 ciss_notify_physical(sc, cn); 2780 break; 2781 } 2782 2783 /* 2784 * If the response indicates that the notifier has been aborted, 2785 * release the notifier command. 2786 */ 2787 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2788 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2789 (cn->detail == 1)) { 2790 debug(0, "notifier exiting"); 2791 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2792 ciss_release_request(cr); 2793 sc->ciss_periodic_notify = NULL; 2794 wakeup(&sc->ciss_periodic_notify); 2795 } 2796 2797 /* 2798 * Send a new notify event command, if we're not aborting. 2799 */ 2800 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2801 ciss_notify_event(sc); 2802 } 2803} 2804 2805/************************************************************************ 2806 * Abort the Notify Event chain. 2807 * 2808 * Note that we can't just abort the command in progress; we have to 2809 * explicitly issue an Abort Notify Event command in order for the 2810 * adapter to clean up correctly. 2811 * 2812 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2813 * the chain will not restart itself. 2814 */ 2815static int 2816ciss_notify_abort(struct ciss_softc *sc) 2817{ 2818 struct ciss_request *cr; 2819 struct ciss_command *cc; 2820 struct ciss_notify_cdb *cnc; 2821 int error, s, command_status, scsi_status; 2822 2823 debug_called(1); 2824 2825 cr = NULL; 2826 error = 0; 2827 2828 /* verify that there's an outstanding command */ 2829 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2830 goto out; 2831 2832 /* get a command to issue the abort with */ 2833 if ((error = ciss_get_request(sc, &cr))) 2834 goto out; 2835 2836 /* get a buffer for the result */ 2837 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2838 debug(0, "can't get notify event request buffer"); 2839 error = ENOMEM; 2840 goto out; 2841 } 2842 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2843 2844 /* build the CDB */ 2845 cc = CISS_FIND_COMMAND(cr); 2846 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2847 cc->header.address.physical.bus = 0; 2848 cc->header.address.physical.target = 0; 2849 cc->cdb.cdb_length = sizeof(*cnc); 2850 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2851 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2852 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2853 cc->cdb.timeout = 0; /* no timeout, we hope */ 2854 2855 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2856 bzero(cnc, sizeof(*cnc)); 2857 cnc->opcode = CISS_OPCODE_WRITE; 2858 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2859 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2860 2861 ciss_print_request(cr); 2862 2863 /* 2864 * Submit the request and wait for it to complete. 2865 */ 2866 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2867 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2868 goto out; 2869 } 2870 2871 /* 2872 * Check response. 2873 */ 2874 ciss_report_request(cr, &command_status, &scsi_status); 2875 switch(command_status) { 2876 case CISS_CMD_STATUS_SUCCESS: 2877 break; 2878 case CISS_CMD_STATUS_INVALID_COMMAND: 2879 /* 2880 * Some older adapters don't support the CISS version of this 2881 * command. Fall back to using the BMIC version. 2882 */ 2883 error = ciss_notify_abort_bmic(sc); 2884 if (error != 0) 2885 goto out; 2886 break; 2887 2888 case CISS_CMD_STATUS_TARGET_STATUS: 2889 /* 2890 * This can happen if the adapter thinks there wasn't an outstanding 2891 * Notify Event command but we did. We clean up here. 2892 */ 2893 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2894 if (sc->ciss_periodic_notify != NULL) 2895 ciss_release_request(sc->ciss_periodic_notify); 2896 error = 0; 2897 goto out; 2898 } 2899 /* FALLTHROUGH */ 2900 2901 default: 2902 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2903 ciss_name_command_status(command_status)); 2904 error = EIO; 2905 goto out; 2906 } 2907 2908 /* 2909 * Sleep waiting for the notifier command to complete. Note 2910 * that if it doesn't, we may end up in a bad situation, since 2911 * the adapter may deliver it later. Also note that the adapter 2912 * requires the Notify Event command to be cancelled in order to 2913 * maintain internal bookkeeping. 2914 */ 2915 s = splcam(); 2916 while (sc->ciss_periodic_notify != NULL) { 2917 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2918 if (error == EWOULDBLOCK) { 2919 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2920 break; 2921 } 2922 } 2923 splx(s); 2924 2925 out: 2926 /* release the cancel request */ 2927 if (cr != NULL) { 2928 if (cr->cr_data != NULL) 2929 free(cr->cr_data, CISS_MALLOC_CLASS); 2930 ciss_release_request(cr); 2931 } 2932 if (error == 0) 2933 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2934 return(error); 2935} 2936 2937/************************************************************************ 2938 * Abort the Notify Event chain using a BMIC command. 2939 */ 2940static int 2941ciss_notify_abort_bmic(struct ciss_softc *sc) 2942{ 2943 struct ciss_request *cr; 2944 int error, command_status; 2945 2946 debug_called(1); 2947 2948 cr = NULL; 2949 error = 0; 2950 2951 /* verify that there's an outstanding command */ 2952 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2953 goto out; 2954 2955 /* 2956 * Build a BMIC command to cancel the Notify on Event command. 2957 * 2958 * Note that we are sending a CISS opcode here. Odd. 2959 */ 2960 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2961 NULL, 0)) != 0) 2962 goto out; 2963 2964 /* 2965 * Submit the request and wait for it to complete. 2966 */ 2967 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2968 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2969 goto out; 2970 } 2971 2972 /* 2973 * Check response. 2974 */ 2975 ciss_report_request(cr, &command_status, NULL); 2976 switch(command_status) { 2977 case CISS_CMD_STATUS_SUCCESS: 2978 break; 2979 default: 2980 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2981 ciss_name_command_status(command_status)); 2982 error = EIO; 2983 goto out; 2984 } 2985 2986out: 2987 if (cr != NULL) 2988 ciss_release_request(cr); 2989 return(error); 2990} 2991 2992/************************************************************************ 2993 * Handle a notify event relating to the status of a logical drive. 2994 * 2995 * XXX need to be able to defer some of these to properly handle 2996 * calling the "ID Physical drive" command, unless the 'extended' 2997 * drive IDs are always in BIG_MAP format. 2998 */ 2999static void 3000ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3001{ 3002 struct ciss_ldrive *ld; 3003 int ostatus; 3004 3005 debug_called(2); 3006 3007 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3008 3009 switch (cn->subclass) { 3010 case CISS_NOTIFY_LOGICAL_STATUS: 3011 switch (cn->detail) { 3012 case 0: 3013 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3014 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3015 cn->data.logical_status.logical_drive, ld->cl_name, 3016 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3017 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3018 cn->data.logical_status.spare_state, 3019 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3020 3021 /* 3022 * Update our idea of the drive's status. 3023 */ 3024 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3025 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3026 if (ld->cl_lstatus != NULL) 3027 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3028 3029#if 0 3030 /* 3031 * Have CAM rescan the drive if its status has changed. 3032 */ 3033 if (ostatus != ld->cl_status) 3034 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3035#endif 3036 3037 break; 3038 3039 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3040 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3041 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3042 cn->data.logical_status.logical_drive, ld->cl_name); 3043 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3044 break; 3045 3046 case 2: 3047 case 3: 3048 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3049 cn->data.rebuild_aborted.logical_drive, 3050 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3051 (cn->detail == 2) ? "read" : "write"); 3052 break; 3053 } 3054 break; 3055 3056 case CISS_NOTIFY_LOGICAL_ERROR: 3057 if (cn->detail == 0) { 3058 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3059 cn->data.io_error.logical_drive, 3060 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3061 cn->data.io_error.failure_bus, 3062 cn->data.io_error.failure_drive); 3063 /* XXX should we take the drive down at this point, or will we be told? */ 3064 } 3065 break; 3066 3067 case CISS_NOTIFY_LOGICAL_SURFACE: 3068 if (cn->detail == 0) 3069 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3070 cn->data.consistency_completed.logical_drive, 3071 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3072 break; 3073 } 3074} 3075 3076/************************************************************************ 3077 * Handle a notify event relating to the status of a physical drive. 3078 */ 3079static void 3080ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3081{ 3082 3083} 3084 3085/************************************************************************ 3086 * Print a request. 3087 */ 3088static void 3089ciss_print_request(struct ciss_request *cr) 3090{ 3091 struct ciss_softc *sc; 3092 struct ciss_command *cc; 3093 int i; 3094 3095 sc = cr->cr_sc; 3096 cc = CISS_FIND_COMMAND(cr); 3097 3098 ciss_printf(sc, "REQUEST @ %p\n", cr); 3099 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3100 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3101 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3102 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3103 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3104 switch(cc->header.address.mode.mode) { 3105 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3106 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3107 ciss_printf(sc, " physical bus %d target %d\n", 3108 cc->header.address.physical.bus, cc->header.address.physical.target); 3109 break; 3110 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3111 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3112 break; 3113 } 3114 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3115 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3116 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3117 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3118 cc->cdb.cdb_length, 3119 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3120 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3121 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3122 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3123 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3124 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3125 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3126 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3127 3128 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3129 /* XXX print error info */ 3130 } else { 3131 /* since we don't use chained s/g, don't support it here */ 3132 for (i = 0; i < cc->header.sg_in_list; i++) { 3133 if ((i % 4) == 0) 3134 ciss_printf(sc, " "); 3135 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3136 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3137 printf("\n"); 3138 } 3139 } 3140} 3141 3142/************************************************************************ 3143 * Print information about the status of a logical drive. 3144 */ 3145static void 3146ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3147{ 3148 int bus, target, i; 3149 3150 if (ld->cl_lstatus == NULL) { 3151 printf("does not exist\n"); 3152 return; 3153 } 3154 3155 /* print drive status */ 3156 switch(ld->cl_lstatus->status) { 3157 case CISS_LSTATUS_OK: 3158 printf("online\n"); 3159 break; 3160 case CISS_LSTATUS_INTERIM_RECOVERY: 3161 printf("in interim recovery mode\n"); 3162 break; 3163 case CISS_LSTATUS_READY_RECOVERY: 3164 printf("ready to begin recovery\n"); 3165 break; 3166 case CISS_LSTATUS_RECOVERING: 3167 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3168 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3169 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3170 bus, target, ld->cl_lstatus->blocks_to_recover); 3171 break; 3172 case CISS_LSTATUS_EXPANDING: 3173 printf("being expanded, %u blocks remaining\n", 3174 ld->cl_lstatus->blocks_to_recover); 3175 break; 3176 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3177 printf("queued for expansion\n"); 3178 break; 3179 case CISS_LSTATUS_FAILED: 3180 printf("queued for expansion\n"); 3181 break; 3182 case CISS_LSTATUS_WRONG_PDRIVE: 3183 printf("wrong physical drive inserted\n"); 3184 break; 3185 case CISS_LSTATUS_MISSING_PDRIVE: 3186 printf("missing a needed physical drive\n"); 3187 break; 3188 case CISS_LSTATUS_BECOMING_READY: 3189 printf("becoming ready\n"); 3190 break; 3191 } 3192 3193 /* print failed physical drives */ 3194 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3195 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3196 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3197 if (bus == -1) 3198 continue; 3199 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3200 ld->cl_lstatus->drive_failure_map[i]); 3201 } 3202} 3203 3204#ifdef CISS_DEBUG 3205/************************************************************************ 3206 * Print information about the controller/driver. 3207 */ 3208static void 3209ciss_print_adapter(struct ciss_softc *sc) 3210{ 3211 int i; 3212 3213 ciss_printf(sc, "ADAPTER:\n"); 3214 for (i = 0; i < CISSQ_COUNT; i++) { 3215 ciss_printf(sc, "%s %d/%d\n", 3216 i == 0 ? "free" : 3217 i == 1 ? "busy" : "complete", 3218 sc->ciss_qstat[i].q_length, 3219 sc->ciss_qstat[i].q_max); 3220 } 3221 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3222 ciss_printf(sc, "notify_head/tail %d/%d\n", 3223 sc->ciss_notify_head, sc->ciss_notify_tail); 3224 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3225 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3226 3227 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3228 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3229 ciss_print_ldrive(sc, sc->ciss_logical + i); 3230 } 3231 3232 for (i = 1; i < sc->ciss_max_requests; i++) 3233 ciss_print_request(sc->ciss_request + i); 3234 3235} 3236 3237/* DDB hook */ 3238static void 3239ciss_print0(void) 3240{ 3241 struct ciss_softc *sc; 3242 3243 sc = devclass_get_softc(devclass_find("ciss"), 0); 3244 if (sc == NULL) { 3245 printf("no ciss controllers\n"); 3246 } else { 3247 ciss_print_adapter(sc); 3248 } 3249} 3250#endif 3251 3252/************************************************************************ 3253 * Return a name for a logical drive status value. 3254 */ 3255static const char * 3256ciss_name_ldrive_status(int status) 3257{ 3258 switch (status) { 3259 case CISS_LSTATUS_OK: 3260 return("OK"); 3261 case CISS_LSTATUS_FAILED: 3262 return("failed"); 3263 case CISS_LSTATUS_NOT_CONFIGURED: 3264 return("not configured"); 3265 case CISS_LSTATUS_INTERIM_RECOVERY: 3266 return("interim recovery"); 3267 case CISS_LSTATUS_READY_RECOVERY: 3268 return("ready for recovery"); 3269 case CISS_LSTATUS_RECOVERING: 3270 return("recovering"); 3271 case CISS_LSTATUS_WRONG_PDRIVE: 3272 return("wrong physical drive inserted"); 3273 case CISS_LSTATUS_MISSING_PDRIVE: 3274 return("missing physical drive"); 3275 case CISS_LSTATUS_EXPANDING: 3276 return("expanding"); 3277 case CISS_LSTATUS_BECOMING_READY: 3278 return("becoming ready"); 3279 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3280 return("queued for expansion"); 3281 } 3282 return("unknown status"); 3283} 3284 3285/************************************************************************ 3286 * Return an online/offline/nonexistent value for a logical drive 3287 * status value. 3288 */ 3289static int 3290ciss_decode_ldrive_status(int status) 3291{ 3292 switch(status) { 3293 case CISS_LSTATUS_NOT_CONFIGURED: 3294 return(CISS_LD_NONEXISTENT); 3295 3296 case CISS_LSTATUS_OK: 3297 case CISS_LSTATUS_INTERIM_RECOVERY: 3298 case CISS_LSTATUS_READY_RECOVERY: 3299 case CISS_LSTATUS_RECOVERING: 3300 case CISS_LSTATUS_EXPANDING: 3301 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3302 return(CISS_LD_ONLINE); 3303 3304 case CISS_LSTATUS_FAILED: 3305 case CISS_LSTATUS_WRONG_PDRIVE: 3306 case CISS_LSTATUS_MISSING_PDRIVE: 3307 case CISS_LSTATUS_BECOMING_READY: 3308 default: 3309 return(CISS_LD_OFFLINE); 3310 } 3311} 3312 3313 3314/************************************************************************ 3315 * Return a name for a logical drive's organisation. 3316 */ 3317static const char * 3318ciss_name_ldrive_org(int org) 3319{ 3320 switch(org) { 3321 case CISS_LDRIVE_RAID0: 3322 return("RAID 0"); 3323 case CISS_LDRIVE_RAID1: 3324 return("RAID 1"); 3325 case CISS_LDRIVE_RAID4: 3326 return("RAID 4"); 3327 case CISS_LDRIVE_RAID5: 3328 return("RAID 5"); 3329 } 3330 return("unkown"); 3331} 3332 3333/************************************************************************ 3334 * Return a name for a command status value. 3335 */ 3336static const char * 3337ciss_name_command_status(int status) 3338{ 3339 switch(status) { 3340 case CISS_CMD_STATUS_SUCCESS: 3341 return("success"); 3342 case CISS_CMD_STATUS_TARGET_STATUS: 3343 return("target status"); 3344 case CISS_CMD_STATUS_DATA_UNDERRUN: 3345 return("data underrun"); 3346 case CISS_CMD_STATUS_DATA_OVERRUN: 3347 return("data overrun"); 3348 case CISS_CMD_STATUS_INVALID_COMMAND: 3349 return("invalid command"); 3350 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3351 return("protocol error"); 3352 case CISS_CMD_STATUS_HARDWARE_ERROR: 3353 return("hardware error"); 3354 case CISS_CMD_STATUS_CONNECTION_LOST: 3355 return("connection lost"); 3356 case CISS_CMD_STATUS_ABORTED: 3357 return("aborted"); 3358 case CISS_CMD_STATUS_ABORT_FAILED: 3359 return("abort failed"); 3360 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3361 return("unsolicited abort"); 3362 case CISS_CMD_STATUS_TIMEOUT: 3363 return("timeout"); 3364 case CISS_CMD_STATUS_UNABORTABLE: 3365 return("unabortable"); 3366 } 3367 return("unknown status"); 3368} 3369 3370/************************************************************************ 3371 * Handle an open on the control device. 3372 */ 3373static int 3374ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3375{ 3376 struct ciss_softc *sc; 3377 3378 debug_called(1); 3379 3380 sc = (struct ciss_softc *)dev->si_drv1; 3381 3382 /* we might want to veto if someone already has us open */ 3383 3384 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3385 return(0); 3386} 3387 3388/************************************************************************ 3389 * Handle the last close on the control device. 3390 */ 3391static int 3392ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3393{ 3394 struct ciss_softc *sc; 3395 3396 debug_called(1); 3397 3398 sc = (struct ciss_softc *)dev->si_drv1; 3399 3400 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3401 return (0); 3402} 3403 3404/******************************************************************************** 3405 * Handle adapter-specific control operations. 3406 * 3407 * Note that the API here is compatible with the Linux driver, in order to 3408 * simplify the porting of Compaq's userland tools. 3409 */ 3410static int 3411ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3412{ 3413 struct ciss_softc *sc; 3414 int error; 3415 3416 debug_called(1); 3417 3418 sc = (struct ciss_softc *)dev->si_drv1; 3419 error = 0; 3420 3421 switch(cmd) { 3422 case CCISS_GETPCIINFO: 3423 { 3424 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3425 3426 pis->bus = pci_get_bus(sc->ciss_dev); 3427 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3428 pis->board_id = pci_get_devid(sc->ciss_dev); 3429 3430 break; 3431 } 3432 3433 case CCISS_GETINTINFO: 3434 { 3435 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3436 3437 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3438 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3439 3440 break; 3441 } 3442 3443 case CCISS_SETINTINFO: 3444 { 3445 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3446 3447 if ((cis->delay == 0) && (cis->count == 0)) { 3448 error = EINVAL; 3449 break; 3450 } 3451 3452 /* 3453 * XXX apparently this is only safe if the controller is idle, 3454 * we should suspend it before doing this. 3455 */ 3456 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3457 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3458 3459 if (ciss_update_config(sc)) 3460 error = EIO; 3461 3462 /* XXX resume the controller here */ 3463 break; 3464 } 3465 3466 case CCISS_GETNODENAME: 3467 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3468 sizeof(NodeName_type)); 3469 break; 3470 3471 case CCISS_SETNODENAME: 3472 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3473 sizeof(NodeName_type)); 3474 if (ciss_update_config(sc)) 3475 error = EIO; 3476 break; 3477 3478 case CCISS_GETHEARTBEAT: 3479 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3480 break; 3481 3482 case CCISS_GETBUSTYPES: 3483 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3484 break; 3485 3486 case CCISS_GETFIRMVER: 3487 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3488 sizeof(FirmwareVer_type)); 3489 break; 3490 3491 case CCISS_GETDRIVERVER: 3492 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3493 break; 3494 3495 case CCISS_REVALIDVOLS: 3496 /* 3497 * This is a bit ugly; to do it "right" we really need 3498 * to find any disks that have changed, kick CAM off them, 3499 * then rescan only these disks. It'd be nice if they 3500 * a) told us which disk(s) they were going to play with, 3501 * and b) which ones had arrived. 8( 3502 */ 3503 break; 3504 3505 case CCISS_PASSTHRU: 3506 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3507 break; 3508 3509 default: 3510 debug(0, "unknown ioctl 0x%lx", cmd); 3511 3512 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3513 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3514 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3515 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3516 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3517 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3518 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3519 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3520 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3521 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3522 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3523 3524 error = ENOIOCTL; 3525 break; 3526 } 3527 3528 return(error); 3529} 3530