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 * $FreeBSD$ 27 */ 28 29 /* 30 * Common Interface for SCSI-3 Support driver. 31 * 32 * CISS claims to provide a common interface between a generic SCSI 33 * transport and an intelligent host adapter. 34 * 35 * This driver supports CISS as defined in the document "CISS Command 36 * Interface for SCSI-3 Support Open Specification", Version 1.04, 37 * Valence Number 1, dated 20001127, produced by Compaq Computer 38 * Corporation. This document appears to be a hastily and somewhat 39 * arbitrarlily cut-down version of a larger (and probably even more 40 * chaotic and inconsistent) Compaq internal document. Various 41 * details were also gleaned from Compaq's "cciss" driver for Linux. 42 * 43 * We provide a shim layer between the CISS interface and CAM, 44 * offloading most of the queueing and being-a-disk chores onto CAM. 45 * Entry to the driver is via the PCI bus attachment (ciss_probe, 46 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 47 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 48 * citizens and we have to fake up some responses to get reasonable 49 * behaviour out of them. In addition, the CISS command set is by no 50 * means adequate to support the functionality of a RAID controller, 51 * and thus the supported Compaq adapters utilise portions of the 52 * control protocol from earlier Compaq adapter families. 53 * 54 * Note that we only support the "simple" transport layer over PCI. 55 * This interface (ab)uses the I2O register set (specifically the post 56 * queues) to exchange commands with the adapter. Other interfaces 57 * are available, but we aren't supposed to know about them, and it is 58 * dubious whether they would provide major performance improvements 59 * except under extreme load. 60 * 61 * Currently the only supported CISS adapters are the Compaq Smart 62 * Array 5* series (5300, 5i, 532). Even with only three adapters, 63 * Compaq still manage to have interface variations. 64 * 65 * 66 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 67 * well as Paul Saab at Yahoo! for their assistance in making this 68 * driver happen. 69 */ 70 71 #include <sys/param.h> 72 #include <sys/systm.h> 73 #include <sys/malloc.h> 74 #include <sys/kernel.h> 75 #include <sys/bus.h> 76 #include <sys/conf.h> 77 #include <sys/stat.h> 78 79 #include <cam/cam.h> 80 #include <cam/cam_ccb.h> 81 #include <cam/cam_periph.h> 82 #include <cam/cam_sim.h> 83 #include <cam/cam_xpt_sim.h> 84 #include <cam/scsi/scsi_all.h> 85 #include <cam/scsi/scsi_message.h> 86 87 #include <machine/clock.h> 88 #include <machine/bus_memio.h> 89 #include <machine/bus.h> 90 #include <machine/endian.h> 91 #include <machine/resource.h> 92 #include <sys/rman.h> 93 94 #include <pci/pcireg.h> 95 #include <pci/pcivar.h> 96 97 #include <dev/ciss/cissreg.h> 98 #include <dev/ciss/cissvar.h> 99 #include <dev/ciss/cissio.h> 100 101 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 102 103 /* pci interface */ 104 static int ciss_lookup(device_t dev); 105 static int ciss_probe(device_t dev); 106 static int ciss_attach(device_t dev); 107 static int ciss_detach(device_t dev); 108 static int ciss_shutdown(device_t dev); 109 110 /* (de)initialisation functions, control wrappers */ 111 static int ciss_init_pci(struct ciss_softc *sc); 112 static int ciss_wait_adapter(struct ciss_softc *sc); 113 static int ciss_flush_adapter(struct ciss_softc *sc); 114 static int ciss_init_requests(struct ciss_softc *sc); 115 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 116 int nseg, int error); 117 static int ciss_identify_adapter(struct ciss_softc *sc); 118 static int ciss_init_logical(struct ciss_softc *sc); 119 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 120 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 121 static int ciss_update_config(struct ciss_softc *sc); 122 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 123 static void ciss_accept_media_complete(struct ciss_request *cr); 124 static void ciss_free(struct ciss_softc *sc); 125 126 /* request submission/completion */ 127 static int ciss_start(struct ciss_request *cr); 128 static void ciss_done(struct ciss_softc *sc); 129 static void ciss_intr(void *arg); 130 static void ciss_complete(struct ciss_softc *sc); 131 static int ciss_report_request(struct ciss_request *cr, int *command_status, 132 int *scsi_status); 133 static int ciss_synch_request(struct ciss_request *cr, int timeout); 134 static int ciss_poll_request(struct ciss_request *cr, int timeout); 135 static int ciss_wait_request(struct ciss_request *cr, int timeout); 136 #if 0 137 static int ciss_abort_request(struct ciss_request *cr); 138 #endif 139 140 /* request queueing */ 141 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 142 static void ciss_preen_command(struct ciss_request *cr); 143 static void ciss_release_request(struct ciss_request *cr); 144 145 /* request helpers */ 146 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 147 int opcode, void **bufp, size_t bufsize); 148 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 149 150 /* DMA map/unmap */ 151 static int ciss_map_request(struct ciss_request *cr); 152 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 153 int nseg, int error); 154 static void ciss_unmap_request(struct ciss_request *cr); 155 156 /* CAM interface */ 157 static int ciss_cam_init(struct ciss_softc *sc); 158 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 159 static void ciss_cam_rescan_all(struct ciss_softc *sc); 160 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 161 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 162 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 163 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 164 static void ciss_cam_poll(struct cam_sim *sim); 165 static void ciss_cam_complete(struct ciss_request *cr); 166 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 167 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 168 static int ciss_name_device(struct ciss_softc *sc, int target); 169 170 /* periodic status monitoring */ 171 static void ciss_periodic(void *arg); 172 static void ciss_notify_event(struct ciss_softc *sc); 173 static void ciss_notify_complete(struct ciss_request *cr); 174 static int ciss_notify_abort(struct ciss_softc *sc); 175 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 176 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 177 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 178 179 /* debugging output */ 180 static void ciss_print_request(struct ciss_request *cr); 181 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 182 static const char *ciss_name_ldrive_status(int status); 183 static int ciss_decode_ldrive_status(int status); 184 static const char *ciss_name_ldrive_org(int org); 185 static const char *ciss_name_command_status(int status); 186 187 /* 188 * PCI bus interface. 189 */ 190 static device_method_t ciss_methods[] = { 191 /* Device interface */ 192 DEVMETHOD(device_probe, ciss_probe), 193 DEVMETHOD(device_attach, ciss_attach), 194 DEVMETHOD(device_detach, ciss_detach), 195 DEVMETHOD(device_shutdown, ciss_shutdown), 196 { 0, 0 } 197 }; 198 199 static driver_t ciss_pci_driver = { 200 "ciss", 201 ciss_methods, 202 sizeof(struct ciss_softc) 203 }; 204 205 static devclass_t ciss_devclass; 206 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 207 208 /* 209 * Control device interface. 210 */ 211 static d_open_t ciss_open; 212 static d_close_t ciss_close; 213 static d_ioctl_t ciss_ioctl; 214 215 #define CISS_CDEV_MAJOR 166 216 217 static struct cdevsw ciss_cdevsw = { 218 .d_open = ciss_open, 219 .d_close = ciss_close, 220 .d_ioctl = ciss_ioctl, 221 .d_name = "ciss", 222 .d_maj = CISS_CDEV_MAJOR, 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) 234 235 static 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_SA5, "HP Smart Array 641" }, 247 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 248 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 249 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 250 { 0, 0, 0, NULL } 251 }; 252 253 /************************************************************************ 254 * Find a match for the device in our list of known adapters. 255 */ 256 static int 257 ciss_lookup(device_t dev) 258 { 259 int i; 260 261 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 262 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 263 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 264 return(i); 265 } 266 return(-1); 267 } 268 269 /************************************************************************ 270 * Match a known CISS adapter. 271 */ 272 static int 273 ciss_probe(device_t dev) 274 { 275 int i; 276 277 i = ciss_lookup(dev); 278 if (i != -1) { 279 device_set_desc(dev, ciss_vendor_data[i].desc); 280 return(-10); 281 } 282 return(ENOENT); 283 } 284 285 /************************************************************************ 286 * Attach the driver to this adapter. 287 */ 288 static int 289 ciss_attach(device_t dev) 290 { 291 struct ciss_softc *sc; 292 int i, error; 293 294 debug_called(1); 295 296 #ifdef CISS_DEBUG 297 /* print structure/union sizes */ 298 debug_struct(ciss_command); 299 debug_struct(ciss_header); 300 debug_union(ciss_device_address); 301 debug_struct(ciss_cdb); 302 debug_struct(ciss_report_cdb); 303 debug_struct(ciss_notify_cdb); 304 debug_struct(ciss_notify); 305 debug_struct(ciss_message_cdb); 306 debug_struct(ciss_error_info_pointer); 307 debug_struct(ciss_error_info); 308 debug_struct(ciss_sg_entry); 309 debug_struct(ciss_config_table); 310 debug_struct(ciss_bmic_cdb); 311 debug_struct(ciss_bmic_id_ldrive); 312 debug_struct(ciss_bmic_id_lstatus); 313 debug_struct(ciss_bmic_id_table); 314 debug_struct(ciss_bmic_id_pdrive); 315 debug_struct(ciss_bmic_blink_pdrive); 316 debug_struct(ciss_bmic_flush_cache); 317 debug_const(CISS_MAX_REQUESTS); 318 debug_const(CISS_MAX_LOGICAL); 319 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 320 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 321 debug_const(CISS_COMMAND_ALLOC_SIZE); 322 debug_const(CISS_COMMAND_SG_LENGTH); 323 324 debug_type(cciss_pci_info_struct); 325 debug_type(cciss_coalint_struct); 326 debug_type(cciss_coalint_struct); 327 debug_type(NodeName_type); 328 debug_type(NodeName_type); 329 debug_type(Heartbeat_type); 330 debug_type(BusTypes_type); 331 debug_type(FirmwareVer_type); 332 debug_type(DriverVer_type); 333 debug_type(IOCTL_Command_struct); 334 #endif 335 336 sc = device_get_softc(dev); 337 sc->ciss_dev = dev; 338 339 /* 340 * Work out adapter type. 341 */ 342 i = ciss_lookup(dev); 343 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 344 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 345 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 346 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 347 } else { 348 /* really an error on our part */ 349 ciss_printf(sc, "unable to determine hardware type\n"); 350 error = ENXIO; 351 goto out; 352 } 353 354 /* 355 * Do PCI-specific init. 356 */ 357 if ((error = ciss_init_pci(sc)) != 0) 358 goto out; 359 360 /* 361 * Initialise driver queues. 362 */ 363 ciss_initq_free(sc); 364 ciss_initq_busy(sc); 365 ciss_initq_complete(sc); 366 367 /* 368 * Initialise command/request pool. 369 */ 370 if ((error = ciss_init_requests(sc)) != 0) 371 goto out; 372 373 /* 374 * Get adapter information. 375 */ 376 if ((error = ciss_identify_adapter(sc)) != 0) 377 goto out; 378 379 /* 380 * Build our private table of logical devices. 381 */ 382 if ((error = ciss_init_logical(sc)) != 0) 383 goto out; 384 385 /* 386 * Enable interrupts so that the CAM scan can complete. 387 */ 388 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 389 390 /* 391 * Initialise the CAM interface. 392 */ 393 if ((error = ciss_cam_init(sc)) != 0) 394 goto out; 395 396 /* 397 * Start the heartbeat routine and event chain. 398 */ 399 ciss_periodic(sc); 400 401 /* 402 * Create the control device. 403 */ 404 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 405 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 406 "ciss%d", device_get_unit(sc->ciss_dev)); 407 sc->ciss_dev_t->si_drv1 = sc; 408 409 /* 410 * The adapter is running; synchronous commands can now sleep 411 * waiting for an interrupt to signal completion. 412 */ 413 sc->ciss_flags |= CISS_FLAG_RUNNING; 414 415 error = 0; 416 out: 417 if (error != 0) 418 ciss_free(sc); 419 return(error); 420 } 421 422 /************************************************************************ 423 * Detach the driver from this adapter. 424 */ 425 static int 426 ciss_detach(device_t dev) 427 { 428 struct ciss_softc *sc = device_get_softc(dev); 429 430 debug_called(1); 431 432 /* flush adapter cache */ 433 ciss_flush_adapter(sc); 434 435 destroy_dev(sc->ciss_dev_t); 436 437 /* release all resources */ 438 ciss_free(sc); 439 440 return(0); 441 442 } 443 444 /************************************************************************ 445 * Prepare adapter for system shutdown. 446 */ 447 static int 448 ciss_shutdown(device_t dev) 449 { 450 struct ciss_softc *sc = device_get_softc(dev); 451 452 debug_called(1); 453 454 /* flush adapter cache */ 455 ciss_flush_adapter(sc); 456 457 return(0); 458 } 459 460 /************************************************************************ 461 * Perform PCI-specific attachment actions. 462 */ 463 static int 464 ciss_init_pci(struct ciss_softc *sc) 465 { 466 uintptr_t cbase, csize, cofs; 467 int error; 468 469 debug_called(1); 470 471 /* 472 * Allocate register window first (we need this to find the config 473 * struct). 474 */ 475 error = ENXIO; 476 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 477 if ((sc->ciss_regs_resource = 478 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 479 0, ~0, 1, RF_ACTIVE)) == NULL) { 480 ciss_printf(sc, "can't allocate register window\n"); 481 return(ENXIO); 482 } 483 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 484 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 485 486 /* 487 * Find the BAR holding the config structure. If it's not the one 488 * we already mapped for registers, map it too. 489 */ 490 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 491 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 492 if ((sc->ciss_cfg_resource = 493 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 494 0, ~0, 1, RF_ACTIVE)) == NULL) { 495 ciss_printf(sc, "can't allocate config window\n"); 496 return(ENXIO); 497 } 498 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 499 csize = rman_get_end(sc->ciss_cfg_resource) - 500 rman_get_start(sc->ciss_cfg_resource) + 1; 501 } else { 502 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 503 csize = rman_get_end(sc->ciss_regs_resource) - 504 rman_get_start(sc->ciss_regs_resource) + 1; 505 } 506 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 507 508 /* 509 * Use the base/size/offset values we just calculated to 510 * sanity-check the config structure. If it's OK, point to it. 511 */ 512 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 513 ciss_printf(sc, "config table outside window\n"); 514 return(ENXIO); 515 } 516 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 517 debug(1, "config struct at %p", sc->ciss_cfg); 518 519 /* 520 * Validate the config structure. If we supported other transport 521 * methods, we could select amongst them at this point in time. 522 */ 523 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 524 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 525 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 526 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 527 return(ENXIO); 528 } 529 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 530 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 531 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 532 sc->ciss_cfg->valence); 533 return(ENXIO); 534 } 535 536 /* 537 * Put the board into simple mode, and tell it we're using the low 538 * 4GB of RAM. Set the default interrupt coalescing options. 539 */ 540 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 541 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 542 return(ENXIO); 543 } 544 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 545 sc->ciss_cfg->command_physlimit = 0; 546 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 547 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 548 549 if (ciss_update_config(sc)) { 550 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 551 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 552 return(ENXIO); 553 } 554 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 555 ciss_printf(sc, 556 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 557 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 558 return(ENXIO); 559 } 560 561 /* 562 * Wait for the adapter to come ready. 563 */ 564 if ((error = ciss_wait_adapter(sc)) != 0) 565 return(error); 566 567 /* 568 * Turn off interrupts before we go routing anything. 569 */ 570 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 571 572 /* 573 * Allocate and set up our interrupt. 574 */ 575 sc->ciss_irq_rid = 0; 576 if ((sc->ciss_irq_resource = 577 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 578 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 579 ciss_printf(sc, "can't allocate interrupt\n"); 580 return(ENXIO); 581 } 582 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 583 &sc->ciss_intr)) { 584 ciss_printf(sc, "can't set up interrupt\n"); 585 return(ENXIO); 586 } 587 588 /* 589 * Allocate the parent bus DMA tag appropriate for our PCI 590 * interface. 591 * 592 * Note that "simple" adapters can only address within a 32-bit 593 * span. 594 */ 595 if (bus_dma_tag_create(NULL, /* parent */ 596 1, 0, /* alignment, boundary */ 597 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 598 BUS_SPACE_MAXADDR, /* highaddr */ 599 NULL, NULL, /* filter, filterarg */ 600 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 601 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 602 BUS_DMA_ALLOCNOW, /* flags */ 603 &sc->ciss_parent_dmat)) { 604 ciss_printf(sc, "can't allocate parent DMA tag\n"); 605 return(ENOMEM); 606 } 607 608 /* 609 * Create DMA tag for mapping buffers into adapter-addressable 610 * space. 611 */ 612 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 613 1, 0, /* alignment, boundary */ 614 BUS_SPACE_MAXADDR, /* lowaddr */ 615 BUS_SPACE_MAXADDR, /* highaddr */ 616 NULL, NULL, /* filter, filterarg */ 617 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 618 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 619 0, /* flags */ 620 &sc->ciss_buffer_dmat)) { 621 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 622 return(ENOMEM); 623 } 624 return(0); 625 } 626 627 /************************************************************************ 628 * Wait for the adapter to come ready. 629 */ 630 static int 631 ciss_wait_adapter(struct ciss_softc *sc) 632 { 633 int i; 634 635 debug_called(1); 636 637 /* 638 * Wait for the adapter to come ready. 639 */ 640 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 641 ciss_printf(sc, "waiting for adapter to come ready...\n"); 642 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 643 DELAY(1000000); /* one second */ 644 if (i > 30) { 645 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 646 return(EIO); 647 } 648 } 649 } 650 return(0); 651 } 652 653 /************************************************************************ 654 * Flush the adapter cache. 655 */ 656 static int 657 ciss_flush_adapter(struct ciss_softc *sc) 658 { 659 struct ciss_request *cr; 660 struct ciss_bmic_flush_cache *cbfc; 661 int error, command_status; 662 663 debug_called(1); 664 665 cr = NULL; 666 cbfc = NULL; 667 668 /* 669 * Build a BMIC request to flush the cache. We don't disable 670 * it, as we may be going to do more I/O (eg. we are emulating 671 * the Synchronise Cache command). 672 */ 673 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 674 error = ENOMEM; 675 goto out; 676 } 677 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 678 (void **)&cbfc, sizeof(*cbfc))) != 0) 679 goto out; 680 681 /* 682 * Submit the request and wait for it to complete. 683 */ 684 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 685 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 686 goto out; 687 } 688 689 /* 690 * Check response. 691 */ 692 ciss_report_request(cr, &command_status, NULL); 693 switch(command_status) { 694 case CISS_CMD_STATUS_SUCCESS: 695 break; 696 default: 697 ciss_printf(sc, "error flushing cache (%s)\n", 698 ciss_name_command_status(command_status)); 699 error = EIO; 700 goto out; 701 } 702 703 out: 704 if (cbfc != NULL) 705 free(cbfc, CISS_MALLOC_CLASS); 706 if (cr != NULL) 707 ciss_release_request(cr); 708 return(error); 709 } 710 711 /************************************************************************ 712 * Allocate memory for the adapter command structures, initialise 713 * the request structures. 714 * 715 * Note that the entire set of commands are allocated in a single 716 * contiguous slab. 717 */ 718 static int 719 ciss_init_requests(struct ciss_softc *sc) 720 { 721 struct ciss_request *cr; 722 int i; 723 724 debug_called(1); 725 726 /* 727 * Calculate the number of request structures/commands we are 728 * going to provide for this adapter. 729 */ 730 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 731 732 if (1/*bootverbose*/) 733 ciss_printf(sc, "using %d of %d available commands\n", 734 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 735 736 /* 737 * Create the DMA tag for commands. 738 */ 739 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 740 1, 0, /* alignment, boundary */ 741 BUS_SPACE_MAXADDR, /* lowaddr */ 742 BUS_SPACE_MAXADDR, /* highaddr */ 743 NULL, NULL, /* filter, filterarg */ 744 CISS_COMMAND_ALLOC_SIZE * 745 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 746 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 747 0, /* flags */ 748 &sc->ciss_command_dmat)) { 749 ciss_printf(sc, "can't allocate command DMA tag\n"); 750 return(ENOMEM); 751 } 752 /* 753 * Allocate memory and make it available for DMA. 754 */ 755 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 756 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 757 ciss_printf(sc, "can't allocate command memory\n"); 758 return(ENOMEM); 759 } 760 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 761 sizeof(struct ciss_command) * sc->ciss_max_requests, 762 ciss_command_map_helper, sc, 0); 763 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 764 765 /* 766 * Set up the request and command structures, push requests onto 767 * the free queue. 768 */ 769 for (i = 1; i < sc->ciss_max_requests; i++) { 770 cr = &sc->ciss_request[i]; 771 cr->cr_sc = sc; 772 cr->cr_tag = i; 773 ciss_enqueue_free(cr); 774 } 775 return(0); 776 } 777 778 static void 779 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 780 { 781 struct ciss_softc *sc = (struct ciss_softc *)arg; 782 783 sc->ciss_command_phys = segs->ds_addr; 784 } 785 786 /************************************************************************ 787 * Identify the adapter, print some information about it. 788 */ 789 static int 790 ciss_identify_adapter(struct ciss_softc *sc) 791 { 792 struct ciss_request *cr; 793 int error, command_status; 794 795 debug_called(1); 796 797 cr = NULL; 798 799 /* 800 * Get a request, allocate storage for the adapter data. 801 */ 802 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 803 (void **)&sc->ciss_id, 804 sizeof(*sc->ciss_id))) != 0) 805 goto out; 806 807 /* 808 * Submit the request and wait for it to complete. 809 */ 810 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 811 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 812 goto out; 813 } 814 815 /* 816 * Check response. 817 */ 818 ciss_report_request(cr, &command_status, NULL); 819 switch(command_status) { 820 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 821 break; 822 case CISS_CMD_STATUS_DATA_UNDERRUN: 823 case CISS_CMD_STATUS_DATA_OVERRUN: 824 ciss_printf(sc, "data over/underrun reading adapter information\n"); 825 default: 826 ciss_printf(sc, "error reading adapter information (%s)\n", 827 ciss_name_command_status(command_status)); 828 error = EIO; 829 goto out; 830 } 831 832 /* sanity-check reply */ 833 if (!sc->ciss_id->big_map_supported) { 834 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 835 error = ENXIO; 836 goto out; 837 } 838 839 #if 0 840 /* XXX later revisions may not need this */ 841 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 842 #endif 843 844 /* XXX only really required for old 5300 adapters? */ 845 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 846 847 /* print information */ 848 if (1/*bootverbose*/) { 849 ciss_printf(sc, " %d logical drive%s configured\n", 850 sc->ciss_id->configured_logical_drives, 851 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 852 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 853 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 854 855 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 856 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 857 ciss_printf(sc, " supported I/O methods 0x%b\n", 858 sc->ciss_cfg->supported_methods, 859 "\20\1READY\2simple\3performant\4MEMQ\n"); 860 ciss_printf(sc, " active I/O method 0x%b\n", 861 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 862 ciss_printf(sc, " 4G page base 0x%08x\n", 863 sc->ciss_cfg->command_physlimit); 864 ciss_printf(sc, " interrupt coalesce delay %dus\n", 865 sc->ciss_cfg->interrupt_coalesce_delay); 866 ciss_printf(sc, " interrupt coalesce count %d\n", 867 sc->ciss_cfg->interrupt_coalesce_count); 868 ciss_printf(sc, " max outstanding commands %d\n", 869 sc->ciss_cfg->max_outstanding_commands); 870 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 871 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 872 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 873 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 874 } 875 876 out: 877 if (error) { 878 if (sc->ciss_id != NULL) { 879 free(sc->ciss_id, CISS_MALLOC_CLASS); 880 sc->ciss_id = NULL; 881 } 882 } 883 if (cr != NULL) 884 ciss_release_request(cr); 885 return(error); 886 } 887 888 /************************************************************************ 889 * Find logical drives on the adapter. 890 */ 891 static int 892 ciss_init_logical(struct ciss_softc *sc) 893 { 894 struct ciss_request *cr; 895 struct ciss_command *cc; 896 struct ciss_report_cdb *crc; 897 struct ciss_lun_report *cll; 898 int error, i; 899 size_t report_size; 900 int ndrives; 901 int command_status; 902 903 debug_called(1); 904 905 cr = NULL; 906 cll = NULL; 907 908 /* 909 * Get a request, allocate storage for the address list. 910 */ 911 if ((error = ciss_get_request(sc, &cr)) != 0) 912 goto out; 913 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 914 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 915 ciss_printf(sc, "can't allocate memory for logical drive list\n"); 916 error = ENOMEM; 917 goto out; 918 } 919 920 /* 921 * Build the Report Logical LUNs command. 922 */ 923 cc = CISS_FIND_COMMAND(cr); 924 cr->cr_data = cll; 925 cr->cr_length = report_size; 926 cr->cr_flags = CISS_REQ_DATAIN; 927 928 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 929 cc->header.address.physical.bus = 0; 930 cc->header.address.physical.target = 0; 931 cc->cdb.cdb_length = sizeof(*crc); 932 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 933 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 934 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 935 cc->cdb.timeout = 30; /* XXX better suggestions? */ 936 937 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 938 bzero(crc, sizeof(*crc)); 939 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 940 crc->length = htonl(report_size); /* big-endian field */ 941 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 942 943 /* 944 * Submit the request and wait for it to complete. (timeout 945 * here should be much greater than above) 946 */ 947 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 948 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 949 goto out; 950 } 951 952 /* 953 * Check response. Note that data over/underrun is OK. 954 */ 955 ciss_report_request(cr, &command_status, NULL); 956 switch(command_status) { 957 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 958 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 959 break; 960 case CISS_CMD_STATUS_DATA_OVERRUN: 961 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 962 CISS_MAX_LOGICAL); 963 break; 964 default: 965 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 966 ciss_name_command_status(command_status)); 967 error = EIO; 968 goto out; 969 } 970 ciss_release_request(cr); 971 cr = NULL; 972 973 /* sanity-check reply */ 974 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 975 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 976 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 977 ndrives, CISS_MAX_LOGICAL); 978 return(ENXIO); 979 } 980 981 /* 982 * Save logical drive information. 983 */ 984 if (1/*bootverbose*/) 985 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 986 if (ndrives != sc->ciss_id->configured_logical_drives) 987 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 988 ndrives, sc->ciss_id->configured_logical_drives); 989 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 990 if (i < ndrives) { 991 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 992 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 993 continue; 994 /* 995 * If the drive has had media exchanged, we should bring it online. 996 */ 997 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 998 ciss_accept_media(sc, i, 0); 999 1000 } else { 1001 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1002 } 1003 } 1004 error = 0; 1005 1006 out: 1007 /* 1008 * Note that if the error is a timeout, we are taking a slight 1009 * risk here and assuming that the adapter will not respond at a 1010 * later time, scribbling over host memory. 1011 */ 1012 if (cr != NULL) 1013 ciss_release_request(cr); 1014 if (cll != NULL) 1015 free(cll, CISS_MALLOC_CLASS); 1016 return(error); 1017 } 1018 1019 static int 1020 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1021 { 1022 struct ciss_request *cr; 1023 struct ciss_command *cc; 1024 struct scsi_inquiry *inq; 1025 int error; 1026 int command_status; 1027 int lun; 1028 1029 cr = NULL; 1030 lun = ld->cl_address.logical.lun; 1031 1032 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1033 1034 if ((error = ciss_get_request(sc, &cr)) != 0) 1035 goto out; 1036 1037 cc = CISS_FIND_COMMAND(cr); 1038 cr->cr_data = &ld->cl_geometry; 1039 cr->cr_length = sizeof(ld->cl_geometry); 1040 cr->cr_flags = CISS_REQ_DATAIN; 1041 1042 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1043 cc->header.address.logical.lun = lun; 1044 cc->cdb.cdb_length = 6; 1045 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1046 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1047 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1048 cc->cdb.timeout = 30; 1049 1050 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1051 inq->opcode = INQUIRY; 1052 inq->byte2 = SI_EVPD; 1053 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1054 inq->length = sizeof(ld->cl_geometry); 1055 1056 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1057 ciss_printf(sc, "error getting geometry (%d)\n", error); 1058 goto out; 1059 } 1060 1061 ciss_report_request(cr, &command_status, NULL); 1062 switch(command_status) { 1063 case CISS_CMD_STATUS_SUCCESS: 1064 case CISS_CMD_STATUS_DATA_UNDERRUN: 1065 break; 1066 case CISS_CMD_STATUS_DATA_OVERRUN: 1067 ciss_printf(sc, "WARNING: Data overrun\n"); 1068 break; 1069 default: 1070 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1071 ciss_name_command_status(command_status)); 1072 break; 1073 } 1074 1075 out: 1076 if (cr != NULL) 1077 ciss_release_request(cr); 1078 return(error); 1079 } 1080 /************************************************************************ 1081 * Identify a logical drive, initialise state related to it. 1082 */ 1083 static int 1084 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1085 { 1086 struct ciss_request *cr; 1087 struct ciss_command *cc; 1088 struct ciss_bmic_cdb *cbc; 1089 int error, command_status; 1090 1091 debug_called(1); 1092 1093 cr = NULL; 1094 1095 /* 1096 * Build a BMIC request to fetch the drive ID. 1097 */ 1098 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1099 (void **)&ld->cl_ldrive, 1100 sizeof(*ld->cl_ldrive))) != 0) 1101 goto out; 1102 cc = CISS_FIND_COMMAND(cr); 1103 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1104 cbc->log_drive = ld->cl_address.logical.lun; 1105 1106 /* 1107 * Submit the request and wait for it to complete. 1108 */ 1109 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1110 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1111 goto out; 1112 } 1113 1114 /* 1115 * Check response. 1116 */ 1117 ciss_report_request(cr, &command_status, NULL); 1118 switch(command_status) { 1119 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1120 break; 1121 case CISS_CMD_STATUS_DATA_UNDERRUN: 1122 case CISS_CMD_STATUS_DATA_OVERRUN: 1123 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1124 default: 1125 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1126 ciss_name_command_status(command_status)); 1127 error = EIO; 1128 goto out; 1129 } 1130 ciss_release_request(cr); 1131 cr = NULL; 1132 1133 /* 1134 * Build a CISS BMIC command to get the logical drive status. 1135 */ 1136 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1137 goto out; 1138 1139 /* 1140 * Get the logical drive geometry. 1141 */ 1142 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1143 goto out; 1144 1145 /* 1146 * Print the drive's basic characteristics. 1147 */ 1148 if (1/*bootverbose*/) { 1149 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1150 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1151 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1152 ld->cl_ldrive->block_size)); 1153 1154 ciss_print_ldrive(sc, ld); 1155 } 1156 out: 1157 if (error != 0) { 1158 /* make the drive not-exist */ 1159 ld->cl_status = CISS_LD_NONEXISTENT; 1160 if (ld->cl_ldrive != NULL) { 1161 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1162 ld->cl_ldrive = NULL; 1163 } 1164 if (ld->cl_lstatus != NULL) { 1165 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1166 ld->cl_lstatus = NULL; 1167 } 1168 } 1169 if (cr != NULL) 1170 ciss_release_request(cr); 1171 1172 return(error); 1173 } 1174 1175 /************************************************************************ 1176 * Get status for a logical drive. 1177 * 1178 * XXX should we also do this in response to Test Unit Ready? 1179 */ 1180 static int 1181 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1182 { 1183 struct ciss_request *cr; 1184 struct ciss_command *cc; 1185 struct ciss_bmic_cdb *cbc; 1186 int error, command_status; 1187 1188 /* 1189 * Build a CISS BMIC command to get the logical drive status. 1190 */ 1191 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1192 (void **)&ld->cl_lstatus, 1193 sizeof(*ld->cl_lstatus))) != 0) 1194 goto out; 1195 cc = CISS_FIND_COMMAND(cr); 1196 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1197 cbc->log_drive = ld->cl_address.logical.lun; 1198 1199 /* 1200 * Submit the request and wait for it to complete. 1201 */ 1202 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1203 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1204 goto out; 1205 } 1206 1207 /* 1208 * Check response. 1209 */ 1210 ciss_report_request(cr, &command_status, NULL); 1211 switch(command_status) { 1212 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1213 break; 1214 case CISS_CMD_STATUS_DATA_UNDERRUN: 1215 case CISS_CMD_STATUS_DATA_OVERRUN: 1216 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1217 default: 1218 ciss_printf(sc, "error reading logical drive status (%s)\n", 1219 ciss_name_command_status(command_status)); 1220 error = EIO; 1221 goto out; 1222 } 1223 1224 /* 1225 * Set the drive's summary status based on the returned status. 1226 * 1227 * XXX testing shows that a failed JBOD drive comes back at next 1228 * boot in "queued for expansion" mode. WTF? 1229 */ 1230 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1231 1232 out: 1233 if (cr != NULL) 1234 ciss_release_request(cr); 1235 return(error); 1236 } 1237 1238 /************************************************************************ 1239 * Notify the adapter of a config update. 1240 */ 1241 static int 1242 ciss_update_config(struct ciss_softc *sc) 1243 { 1244 int i; 1245 1246 debug_called(1); 1247 1248 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1249 for (i = 0; i < 1000; i++) { 1250 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1251 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1252 return(0); 1253 } 1254 DELAY(1000); 1255 } 1256 return(1); 1257 } 1258 1259 /************************************************************************ 1260 * Accept new media into a logical drive. 1261 * 1262 * XXX The drive has previously been offline; it would be good if we 1263 * could make sure it's not open right now. 1264 */ 1265 static int 1266 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1267 { 1268 struct ciss_request *cr; 1269 struct ciss_command *cc; 1270 struct ciss_bmic_cdb *cbc; 1271 int error; 1272 1273 debug(0, "bringing logical drive %d back online %ssynchronously", 1274 ldrive, async ? "a" : ""); 1275 1276 /* 1277 * Build a CISS BMIC command to bring the drive back online. 1278 */ 1279 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1280 NULL, 0)) != 0) 1281 goto out; 1282 cc = CISS_FIND_COMMAND(cr); 1283 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1284 cbc->log_drive = ldrive; 1285 1286 /* 1287 * Dispatch the request asynchronously if we can't sleep waiting 1288 * for it to complete. 1289 */ 1290 if (async) { 1291 cr->cr_complete = ciss_accept_media_complete; 1292 if ((error = ciss_start(cr)) != 0) 1293 goto out; 1294 return(0); 1295 } else { 1296 /* 1297 * Submit the request and wait for it to complete. 1298 */ 1299 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1300 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1301 goto out; 1302 } 1303 } 1304 1305 /* 1306 * Call the completion callback manually. 1307 */ 1308 ciss_accept_media_complete(cr); 1309 return(0); 1310 1311 out: 1312 if (cr != NULL) 1313 ciss_release_request(cr); 1314 return(error); 1315 } 1316 1317 static void 1318 ciss_accept_media_complete(struct ciss_request *cr) 1319 { 1320 int command_status; 1321 1322 /* 1323 * Check response. 1324 */ 1325 ciss_report_request(cr, &command_status, NULL); 1326 switch(command_status) { 1327 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1328 /* we should get a logical drive status changed event here */ 1329 break; 1330 default: 1331 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1332 ciss_name_command_status(command_status)); 1333 break; 1334 } 1335 ciss_release_request(cr); 1336 } 1337 1338 /************************************************************************ 1339 * Release adapter resources. 1340 */ 1341 static void 1342 ciss_free(struct ciss_softc *sc) 1343 { 1344 debug_called(1); 1345 1346 /* we're going away */ 1347 sc->ciss_flags |= CISS_FLAG_ABORTING; 1348 1349 /* terminate the periodic heartbeat routine */ 1350 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1351 1352 /* cancel the Event Notify chain */ 1353 ciss_notify_abort(sc); 1354 1355 /* free the controller data */ 1356 if (sc->ciss_id != NULL) 1357 free(sc->ciss_id, CISS_MALLOC_CLASS); 1358 1359 /* release I/O resources */ 1360 if (sc->ciss_regs_resource != NULL) 1361 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1362 sc->ciss_regs_rid, sc->ciss_regs_resource); 1363 if (sc->ciss_cfg_resource != NULL) 1364 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1365 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1366 if (sc->ciss_intr != NULL) 1367 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1368 if (sc->ciss_irq_resource != NULL) 1369 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1370 sc->ciss_irq_rid, sc->ciss_irq_resource); 1371 1372 /* destroy DMA tags */ 1373 if (sc->ciss_parent_dmat) 1374 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1375 if (sc->ciss_buffer_dmat) 1376 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1377 1378 /* destroy command memory and DMA tag */ 1379 if (sc->ciss_command != NULL) { 1380 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1381 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1382 } 1383 if (sc->ciss_buffer_dmat) 1384 bus_dma_tag_destroy(sc->ciss_command_dmat); 1385 1386 /* disconnect from CAM */ 1387 if (sc->ciss_cam_sim) { 1388 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1389 cam_sim_free(sc->ciss_cam_sim, 0); 1390 } 1391 if (sc->ciss_cam_devq) 1392 cam_simq_free(sc->ciss_cam_devq); 1393 /* XXX what about ciss_cam_path? */ 1394 } 1395 1396 /************************************************************************ 1397 * Give a command to the adapter. 1398 * 1399 * Note that this uses the simple transport layer directly. If we 1400 * want to add support for other layers, we'll need a switch of some 1401 * sort. 1402 * 1403 * Note that the simple transport layer has no way of refusing a 1404 * command; we only have as many request structures as the adapter 1405 * supports commands, so we don't have to check (this presumes that 1406 * the adapter can handle commands as fast as we throw them at it). 1407 */ 1408 static int 1409 ciss_start(struct ciss_request *cr) 1410 { 1411 struct ciss_command *cc; /* XXX debugging only */ 1412 int error; 1413 1414 cc = CISS_FIND_COMMAND(cr); 1415 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1416 1417 /* 1418 * Map the request's data. 1419 */ 1420 if ((error = ciss_map_request(cr))) 1421 return(error); 1422 1423 #if 0 1424 ciss_print_request(cr); 1425 #endif 1426 1427 /* 1428 * Post the command to the adapter. 1429 */ 1430 ciss_enqueue_busy(cr); 1431 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1432 1433 return(0); 1434 } 1435 1436 /************************************************************************ 1437 * Fetch completed request(s) from the adapter, queue them for 1438 * completion handling. 1439 * 1440 * Note that this uses the simple transport layer directly. If we 1441 * want to add support for other layers, we'll need a switch of some 1442 * sort. 1443 * 1444 * Note that the simple transport mechanism does not require any 1445 * reentrancy protection; the OPQ read is atomic. If there is a 1446 * chance of a race with something else that might move the request 1447 * off the busy list, then we will have to lock against that 1448 * (eg. timeouts, etc.) 1449 */ 1450 static void 1451 ciss_done(struct ciss_softc *sc) 1452 { 1453 struct ciss_request *cr; 1454 struct ciss_command *cc; 1455 u_int32_t tag, index; 1456 int complete; 1457 1458 debug_called(3); 1459 1460 /* 1461 * Loop quickly taking requests from the adapter and moving them 1462 * from the busy queue to the completed queue. 1463 */ 1464 complete = 0; 1465 for (;;) { 1466 1467 /* see if the OPQ contains anything */ 1468 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1469 break; 1470 1471 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1472 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1473 break; 1474 index = tag >> 2; 1475 debug(2, "completed command %d%s", index, 1476 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1477 if (index >= sc->ciss_max_requests) { 1478 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1479 continue; 1480 } 1481 cr = &(sc->ciss_request[index]); 1482 cc = CISS_FIND_COMMAND(cr); 1483 cc->header.host_tag = tag; /* not updated by adapter */ 1484 if (ciss_remove_busy(cr)) { 1485 /* assume this is garbage out of the adapter */ 1486 ciss_printf(sc, "completed nonbusy request %d\n", index); 1487 } else { 1488 ciss_enqueue_complete(cr); 1489 } 1490 complete = 1; 1491 } 1492 1493 /* 1494 * Invoke completion processing. If we can defer this out of 1495 * interrupt context, that'd be good. 1496 */ 1497 if (complete) 1498 ciss_complete(sc); 1499 } 1500 1501 /************************************************************************ 1502 * Take an interrupt from the adapter. 1503 */ 1504 static void 1505 ciss_intr(void *arg) 1506 { 1507 struct ciss_softc *sc = (struct ciss_softc *)arg; 1508 1509 /* 1510 * The only interrupt we recognise indicates that there are 1511 * entries in the outbound post queue. 1512 */ 1513 ciss_done(sc); 1514 } 1515 1516 /************************************************************************ 1517 * Process completed requests. 1518 * 1519 * Requests can be completed in three fashions: 1520 * 1521 * - by invoking a callback function (cr_complete is non-null) 1522 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1523 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1524 */ 1525 static void 1526 ciss_complete(struct ciss_softc *sc) 1527 { 1528 struct ciss_request *cr; 1529 1530 debug_called(2); 1531 1532 /* 1533 * Loop taking requests off the completed queue and performing 1534 * completion processing on them. 1535 */ 1536 for (;;) { 1537 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1538 break; 1539 ciss_unmap_request(cr); 1540 1541 /* 1542 * If the request has a callback, invoke it. 1543 */ 1544 if (cr->cr_complete != NULL) { 1545 cr->cr_complete(cr); 1546 continue; 1547 } 1548 1549 /* 1550 * If someone is sleeping on this request, wake them up. 1551 */ 1552 if (cr->cr_flags & CISS_REQ_SLEEP) { 1553 cr->cr_flags &= ~CISS_REQ_SLEEP; 1554 wakeup(cr); 1555 continue; 1556 } 1557 1558 /* 1559 * If someone is polling this request for completion, signal. 1560 */ 1561 if (cr->cr_flags & CISS_REQ_POLL) { 1562 cr->cr_flags &= ~CISS_REQ_POLL; 1563 continue; 1564 } 1565 1566 /* 1567 * Give up and throw the request back on the free queue. This 1568 * should never happen; resources will probably be lost. 1569 */ 1570 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1571 ciss_enqueue_free(cr); 1572 } 1573 } 1574 1575 /************************************************************************ 1576 * Report on the completion status of a request, and pass back SCSI 1577 * and command status values. 1578 */ 1579 static int 1580 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1581 { 1582 struct ciss_command *cc; 1583 struct ciss_error_info *ce; 1584 1585 debug_called(2); 1586 1587 cc = CISS_FIND_COMMAND(cr); 1588 ce = (struct ciss_error_info *)&(cc->sg[0]); 1589 1590 /* 1591 * We don't consider data under/overrun an error for the Report 1592 * Logical/Physical LUNs commands. 1593 */ 1594 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1595 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1596 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1597 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1598 debug(2, "ignoring irrelevant under/overrun error"); 1599 } 1600 1601 /* 1602 * Check the command's error bit, if clear, there's no status and 1603 * everything is OK. 1604 */ 1605 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1606 if (scsi_status != NULL) 1607 *scsi_status = SCSI_STATUS_OK; 1608 if (command_status != NULL) 1609 *command_status = CISS_CMD_STATUS_SUCCESS; 1610 return(0); 1611 } else { 1612 if (command_status != NULL) 1613 *command_status = ce->command_status; 1614 if (scsi_status != NULL) { 1615 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1616 *scsi_status = ce->scsi_status; 1617 } else { 1618 *scsi_status = -1; 1619 } 1620 } 1621 if (bootverbose) 1622 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1623 ce->command_status, ciss_name_command_status(ce->command_status), 1624 ce->scsi_status); 1625 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1626 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1627 ce->additional_error_info.invalid_command.offense_size, 1628 ce->additional_error_info.invalid_command.offense_offset, 1629 ce->additional_error_info.invalid_command.offense_value); 1630 } 1631 } 1632 return(1); 1633 } 1634 1635 /************************************************************************ 1636 * Issue a request and don't return until it's completed. 1637 * 1638 * Depending on adapter status, we may poll or sleep waiting for 1639 * completion. 1640 */ 1641 static int 1642 ciss_synch_request(struct ciss_request *cr, int timeout) 1643 { 1644 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1645 return(ciss_wait_request(cr, timeout)); 1646 } else { 1647 return(ciss_poll_request(cr, timeout)); 1648 } 1649 } 1650 1651 /************************************************************************ 1652 * Issue a request and poll for completion. 1653 * 1654 * Timeout in milliseconds. 1655 */ 1656 static int 1657 ciss_poll_request(struct ciss_request *cr, int timeout) 1658 { 1659 int error; 1660 1661 debug_called(2); 1662 1663 cr->cr_flags |= CISS_REQ_POLL; 1664 if ((error = ciss_start(cr)) != 0) 1665 return(error); 1666 1667 do { 1668 ciss_done(cr->cr_sc); 1669 if (!(cr->cr_flags & CISS_REQ_POLL)) 1670 return(0); 1671 DELAY(1000); 1672 } while (timeout-- >= 0); 1673 return(EWOULDBLOCK); 1674 } 1675 1676 /************************************************************************ 1677 * Issue a request and sleep waiting for completion. 1678 * 1679 * Timeout in milliseconds. Note that a spurious wakeup will reset 1680 * the timeout. 1681 */ 1682 static int 1683 ciss_wait_request(struct ciss_request *cr, int timeout) 1684 { 1685 int s, error; 1686 1687 debug_called(2); 1688 1689 cr->cr_flags |= CISS_REQ_SLEEP; 1690 if ((error = ciss_start(cr)) != 0) 1691 return(error); 1692 1693 s = splcam(); 1694 while (cr->cr_flags & CISS_REQ_SLEEP) { 1695 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1696 /* 1697 * On wakeup or interruption due to restartable activity, go 1698 * back and check to see if we're done. 1699 */ 1700 if ((error == 0) || (error == ERESTART)) { 1701 error = 0; 1702 continue; 1703 } 1704 /* 1705 * Timeout, interrupted system call, etc. 1706 */ 1707 break; 1708 } 1709 splx(s); 1710 return(error); 1711 } 1712 1713 #if 0 1714 /************************************************************************ 1715 * Abort a request. Note that a potential exists here to race the 1716 * request being completed; the caller must deal with this. 1717 */ 1718 static int 1719 ciss_abort_request(struct ciss_request *ar) 1720 { 1721 struct ciss_request *cr; 1722 struct ciss_command *cc; 1723 struct ciss_message_cdb *cmc; 1724 int error; 1725 1726 debug_called(1); 1727 1728 /* get a request */ 1729 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1730 return(error); 1731 1732 /* build the abort command */ 1733 cc = CISS_FIND_COMMAND(cr); 1734 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1735 cc->header.address.physical.target = 0; 1736 cc->header.address.physical.bus = 0; 1737 cc->cdb.cdb_length = sizeof(*cmc); 1738 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1739 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1740 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1741 cc->cdb.timeout = 30; 1742 1743 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1744 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1745 cmc->type = CISS_MESSAGE_ABORT_TASK; 1746 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1747 1748 /* 1749 * Send the request and wait for a response. If we believe we 1750 * aborted the request OK, clear the flag that indicates it's 1751 * running. 1752 */ 1753 error = ciss_synch_request(cr, 35 * 1000); 1754 if (!error) 1755 error = ciss_report_request(cr, NULL, NULL); 1756 ciss_release_request(cr); 1757 1758 return(error); 1759 } 1760 #endif 1761 1762 1763 /************************************************************************ 1764 * Fetch and initialise a request 1765 */ 1766 static int 1767 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1768 { 1769 struct ciss_request *cr; 1770 1771 debug_called(2); 1772 1773 /* 1774 * Get a request and clean it up. 1775 */ 1776 if ((cr = ciss_dequeue_free(sc)) == NULL) 1777 return(ENOMEM); 1778 1779 cr->cr_data = NULL; 1780 cr->cr_flags = 0; 1781 cr->cr_complete = NULL; 1782 1783 ciss_preen_command(cr); 1784 *crp = cr; 1785 return(0); 1786 } 1787 1788 static void 1789 ciss_preen_command(struct ciss_request *cr) 1790 { 1791 struct ciss_command *cc; 1792 u_int32_t cmdphys; 1793 1794 /* 1795 * Clean up the command structure. 1796 * 1797 * Note that we set up the error_info structure here, since the 1798 * length can be overwritten by any command. 1799 */ 1800 cc = CISS_FIND_COMMAND(cr); 1801 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1802 cc->header.sg_total = 0; 1803 cc->header.host_tag = cr->cr_tag << 2; 1804 cc->header.host_tag_zeroes = 0; 1805 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1806 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1807 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1808 1809 } 1810 1811 /************************************************************************ 1812 * Release a request to the free list. 1813 */ 1814 static void 1815 ciss_release_request(struct ciss_request *cr) 1816 { 1817 struct ciss_softc *sc; 1818 1819 debug_called(2); 1820 1821 sc = cr->cr_sc; 1822 1823 /* release the request to the free queue */ 1824 ciss_requeue_free(cr); 1825 } 1826 1827 /************************************************************************ 1828 * Allocate a request that will be used to send a BMIC command. Do some 1829 * of the common setup here to avoid duplicating it everywhere else. 1830 */ 1831 static int 1832 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1833 int opcode, void **bufp, size_t bufsize) 1834 { 1835 struct ciss_request *cr; 1836 struct ciss_command *cc; 1837 struct ciss_bmic_cdb *cbc; 1838 void *buf; 1839 int error; 1840 int dataout; 1841 1842 debug_called(2); 1843 1844 cr = NULL; 1845 buf = NULL; 1846 1847 /* 1848 * Get a request. 1849 */ 1850 if ((error = ciss_get_request(sc, &cr)) != 0) 1851 goto out; 1852 1853 /* 1854 * Allocate data storage if requested, determine the data direction. 1855 */ 1856 dataout = 0; 1857 if ((bufsize > 0) && (bufp != NULL)) { 1858 if (*bufp == NULL) { 1859 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1860 error = ENOMEM; 1861 goto out; 1862 } 1863 } else { 1864 buf = *bufp; 1865 dataout = 1; /* we are given a buffer, so we are writing */ 1866 } 1867 } 1868 1869 /* 1870 * Build a CISS BMIC command to get the logical drive ID. 1871 */ 1872 cr->cr_data = buf; 1873 cr->cr_length = bufsize; 1874 if (!dataout) 1875 cr->cr_flags = CISS_REQ_DATAIN; 1876 1877 cc = CISS_FIND_COMMAND(cr); 1878 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1879 cc->header.address.physical.bus = 0; 1880 cc->header.address.physical.target = 0; 1881 cc->cdb.cdb_length = sizeof(*cbc); 1882 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1883 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1884 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1885 cc->cdb.timeout = 0; 1886 1887 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1888 bzero(cbc, sizeof(*cbc)); 1889 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1890 cbc->bmic_opcode = opcode; 1891 cbc->size = htons((u_int16_t)bufsize); 1892 1893 out: 1894 if (error) { 1895 if (cr != NULL) 1896 ciss_release_request(cr); 1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1898 free(buf, CISS_MALLOC_CLASS); 1899 } else { 1900 *crp = cr; 1901 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1902 *bufp = buf; 1903 } 1904 return(error); 1905 } 1906 1907 /************************************************************************ 1908 * Handle a command passed in from userspace. 1909 */ 1910 static int 1911 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1912 { 1913 struct ciss_request *cr; 1914 struct ciss_command *cc; 1915 struct ciss_error_info *ce; 1916 int error; 1917 1918 debug_called(1); 1919 1920 cr = NULL; 1921 1922 /* 1923 * Get a request. 1924 */ 1925 if ((error = ciss_get_request(sc, &cr)) != 0) 1926 goto out; 1927 cc = CISS_FIND_COMMAND(cr); 1928 1929 /* 1930 * Allocate an in-kernel databuffer if required, copy in user data. 1931 */ 1932 cr->cr_length = ioc->buf_size; 1933 if (ioc->buf_size > 0) { 1934 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1935 error = ENOMEM; 1936 goto out; 1937 } 1938 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1939 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1940 goto out; 1941 } 1942 } 1943 1944 /* 1945 * Build the request based on the user command. 1946 */ 1947 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1948 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1949 1950 /* XXX anything else to populate here? */ 1951 1952 /* 1953 * Run the command. 1954 */ 1955 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1956 debug(0, "request failed - %d", error); 1957 goto out; 1958 } 1959 1960 /* 1961 * Copy the results back to the user. 1962 */ 1963 ce = (struct ciss_error_info *)&(cc->sg[0]); 1964 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1965 if ((ioc->buf_size > 0) && 1966 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1967 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1968 goto out; 1969 } 1970 1971 /* done OK */ 1972 error = 0; 1973 1974 out: 1975 if ((cr != NULL) && (cr->cr_data != NULL)) 1976 free(cr->cr_data, CISS_MALLOC_CLASS); 1977 if (cr != NULL) 1978 ciss_release_request(cr); 1979 return(error); 1980 } 1981 1982 /************************************************************************ 1983 * Map a request into bus-visible space, initialise the scatter/gather 1984 * list. 1985 */ 1986 static int 1987 ciss_map_request(struct ciss_request *cr) 1988 { 1989 struct ciss_softc *sc; 1990 1991 debug_called(2); 1992 1993 sc = cr->cr_sc; 1994 1995 /* check that mapping is necessary */ 1996 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1997 return(0); 1998 1999 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 2000 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 2001 2002 if (cr->cr_flags & CISS_REQ_DATAIN) 2003 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2004 if (cr->cr_flags & CISS_REQ_DATAOUT) 2005 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2006 2007 cr->cr_flags |= CISS_REQ_MAPPED; 2008 return(0); 2009 } 2010 2011 static void 2012 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2013 { 2014 struct ciss_command *cc; 2015 int i; 2016 2017 debug_called(2); 2018 2019 cc = (struct ciss_command *)arg; 2020 for (i = 0; i < nseg; i++) { 2021 cc->sg[i].address = segs[i].ds_addr; 2022 cc->sg[i].length = segs[i].ds_len; 2023 cc->sg[i].extension = 0; 2024 } 2025 /* we leave the s/g table entirely within the command */ 2026 cc->header.sg_in_list = nseg; 2027 cc->header.sg_total = nseg; 2028 } 2029 2030 /************************************************************************ 2031 * Unmap a request from bus-visible space. 2032 */ 2033 static void 2034 ciss_unmap_request(struct ciss_request *cr) 2035 { 2036 struct ciss_softc *sc; 2037 2038 debug_called(2); 2039 2040 sc = cr->cr_sc; 2041 2042 /* check that unmapping is necessary */ 2043 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2044 return; 2045 2046 if (cr->cr_flags & CISS_REQ_DATAIN) 2047 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2048 if (cr->cr_flags & CISS_REQ_DATAOUT) 2049 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2050 2051 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2052 cr->cr_flags &= ~CISS_REQ_MAPPED; 2053 } 2054 2055 /************************************************************************ 2056 * Attach the driver to CAM. 2057 * 2058 * We put all the logical drives on a single SCSI bus. 2059 */ 2060 static int 2061 ciss_cam_init(struct ciss_softc *sc) 2062 { 2063 2064 debug_called(1); 2065 2066 /* 2067 * Allocate a devq. We can reuse this for the masked physical 2068 * devices if we decide to export these as well. 2069 */ 2070 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2071 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2072 return(ENOMEM); 2073 } 2074 2075 /* 2076 * Create a SIM. 2077 */ 2078 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2079 device_get_unit(sc->ciss_dev), 2080 sc->ciss_max_requests - 2, 2081 1, 2082 sc->ciss_cam_devq)) == NULL) { 2083 ciss_printf(sc, "can't allocate CAM SIM\n"); 2084 return(ENOMEM); 2085 } 2086 2087 /* 2088 * Register bus 0 (the 'logical drives' bus) with this SIM. 2089 */ 2090 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2091 ciss_printf(sc, "can't register SCSI bus 0\n"); 2092 return(ENXIO); 2093 } 2094 2095 /* 2096 * Initiate a rescan of the bus. 2097 */ 2098 ciss_cam_rescan_all(sc); 2099 2100 return(0); 2101 } 2102 2103 /************************************************************************ 2104 * Initiate a rescan of the 'logical devices' SIM 2105 */ 2106 static void 2107 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2108 { 2109 union ccb *ccb; 2110 2111 debug_called(1); 2112 2113 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2114 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2115 return; 2116 } 2117 2118 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2119 != CAM_REQ_CMP) { 2120 ciss_printf(sc, "rescan failed (can't create path)\n"); 2121 return; 2122 } 2123 2124 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2125 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2126 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2127 ccb->crcn.flags = CAM_FLAG_NONE; 2128 xpt_action(ccb); 2129 2130 /* scan is now in progress */ 2131 } 2132 2133 static void 2134 ciss_cam_rescan_all(struct ciss_softc *sc) 2135 { 2136 return(ciss_cam_rescan_target(sc, 0)); 2137 } 2138 2139 static void 2140 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2141 { 2142 xpt_free_path(ccb->ccb_h.path); 2143 free(ccb, M_TEMP); 2144 } 2145 2146 /************************************************************************ 2147 * Handle requests coming from CAM 2148 */ 2149 static void 2150 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2151 { 2152 struct ciss_softc *sc; 2153 struct ccb_scsiio *csio; 2154 int target; 2155 2156 sc = cam_sim_softc(sim); 2157 csio = (struct ccb_scsiio *)&ccb->csio; 2158 target = csio->ccb_h.target_id; 2159 2160 switch (ccb->ccb_h.func_code) { 2161 2162 /* perform SCSI I/O */ 2163 case XPT_SCSI_IO: 2164 if (!ciss_cam_action_io(sim, csio)) 2165 return; 2166 break; 2167 2168 /* perform geometry calculations */ 2169 case XPT_CALC_GEOMETRY: 2170 { 2171 struct ccb_calc_geometry *ccg = &ccb->ccg; 2172 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2173 2174 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2175 2176 /* 2177 * Use the cached geometry settings unless the fault tolerance 2178 * is invalid. 2179 */ 2180 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2181 u_int32_t secs_per_cylinder; 2182 2183 ccg->heads = 255; 2184 ccg->secs_per_track = 32; 2185 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2186 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2187 } else { 2188 ccg->heads = ld->cl_geometry.heads; 2189 ccg->secs_per_track = ld->cl_geometry.sectors; 2190 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2191 } 2192 ccb->ccb_h.status = CAM_REQ_CMP; 2193 break; 2194 } 2195 2196 /* handle path attribute inquiry */ 2197 case XPT_PATH_INQ: 2198 { 2199 struct ccb_pathinq *cpi = &ccb->cpi; 2200 2201 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2202 2203 cpi->version_num = 1; 2204 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2205 cpi->target_sprt = 0; 2206 cpi->hba_misc = 0; 2207 cpi->max_target = CISS_MAX_LOGICAL; 2208 cpi->max_lun = 0; /* 'logical drive' channel only */ 2209 cpi->initiator_id = CISS_MAX_LOGICAL; 2210 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2211 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2212 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2213 cpi->unit_number = cam_sim_unit(sim); 2214 cpi->bus_id = cam_sim_bus(sim); 2215 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2216 ccb->ccb_h.status = CAM_REQ_CMP; 2217 break; 2218 } 2219 2220 case XPT_GET_TRAN_SETTINGS: 2221 { 2222 struct ccb_trans_settings *cts = &ccb->cts; 2223 int bus, target; 2224 2225 bus = cam_sim_bus(sim); 2226 target = cts->ccb_h.target_id; 2227 2228 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2229 cts->valid = 0; 2230 2231 /* disconnect always OK */ 2232 cts->flags |= CCB_TRANS_DISC_ENB; 2233 cts->valid |= CCB_TRANS_DISC_VALID; 2234 2235 cts->ccb_h.status = CAM_REQ_CMP; 2236 break; 2237 } 2238 2239 default: /* we can't do this */ 2240 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2241 ccb->ccb_h.status = CAM_REQ_INVALID; 2242 break; 2243 } 2244 2245 xpt_done(ccb); 2246 } 2247 2248 /************************************************************************ 2249 * Handle a CAM SCSI I/O request. 2250 */ 2251 static int 2252 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2253 { 2254 struct ciss_softc *sc; 2255 int bus, target; 2256 struct ciss_request *cr; 2257 struct ciss_command *cc; 2258 int error; 2259 2260 sc = cam_sim_softc(sim); 2261 bus = cam_sim_bus(sim); 2262 target = csio->ccb_h.target_id; 2263 2264 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2265 2266 /* check for I/O attempt to nonexistent device */ 2267 if ((bus != 0) || 2268 (target > CISS_MAX_LOGICAL) || 2269 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2270 debug(3, " device does not exist"); 2271 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2272 } 2273 2274 /* firmware does not support commands > 10 bytes */ 2275 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2276 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2277 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2278 } 2279 2280 /* check that the CDB pointer is not to a physical address */ 2281 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2282 debug(3, " CDB pointer is to physical address"); 2283 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2284 } 2285 2286 /* if there is data transfer, it must be to/from a virtual address */ 2287 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2288 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2289 debug(3, " data pointer is to physical address"); 2290 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2291 } 2292 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2293 debug(3, " data has premature s/g setup"); 2294 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2295 } 2296 } 2297 2298 /* abandon aborted ccbs or those that have failed validation */ 2299 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2300 debug(3, "abandoning CCB due to abort/validation failure"); 2301 return(EINVAL); 2302 } 2303 2304 /* handle emulation of some SCSI commands ourself */ 2305 if (ciss_cam_emulate(sc, csio)) 2306 return(0); 2307 2308 /* 2309 * Get a request to manage this command. If we can't, return the 2310 * ccb, freeze the queue and flag so that we unfreeze it when a 2311 * request completes. 2312 */ 2313 if ((error = ciss_get_request(sc, &cr)) != 0) { 2314 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2315 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2316 return(error); 2317 } 2318 2319 /* 2320 * Build the command. 2321 */ 2322 cc = CISS_FIND_COMMAND(cr); 2323 cr->cr_data = csio->data_ptr; 2324 cr->cr_length = csio->dxfer_len; 2325 cr->cr_complete = ciss_cam_complete; 2326 cr->cr_private = csio; 2327 2328 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2329 cc->header.address.logical.lun = target; 2330 cc->cdb.cdb_length = csio->cdb_len; 2331 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2332 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2333 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2334 cr->cr_flags = CISS_REQ_DATAOUT; 2335 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2336 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2337 cr->cr_flags = CISS_REQ_DATAIN; 2338 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2339 } else { 2340 cr->cr_flags = 0; 2341 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2342 } 2343 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2344 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2345 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2346 } else { 2347 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2348 } 2349 2350 /* 2351 * Submit the request to the adapter. 2352 * 2353 * Note that this may fail if we're unable to map the request (and 2354 * if we ever learn a transport layer other than simple, may fail 2355 * if the adapter rejects the command). 2356 */ 2357 if ((error = ciss_start(cr)) != 0) { 2358 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2359 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2360 ciss_release_request(cr); 2361 return(error); 2362 } 2363 2364 return(0); 2365 } 2366 2367 /************************************************************************ 2368 * Emulate SCSI commands the adapter doesn't handle as we might like. 2369 */ 2370 static int 2371 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2372 { 2373 int target; 2374 u_int8_t opcode; 2375 2376 2377 target = csio->ccb_h.target_id; 2378 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2379 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2380 2381 /* 2382 * Handle requests for volumes that don't exist. A selection timeout 2383 * is slightly better than an illegal request. Other errors might be 2384 * better. 2385 */ 2386 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2387 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2388 xpt_done((union ccb *)csio); 2389 return(1); 2390 } 2391 2392 /* 2393 * Handle requests for volumes that exist but are offline. 2394 * 2395 * I/O operations should fail, everything else should work. 2396 */ 2397 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2398 switch(opcode) { 2399 case READ_6: 2400 case READ_10: 2401 case READ_12: 2402 case WRITE_6: 2403 case WRITE_10: 2404 case WRITE_12: 2405 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2406 xpt_done((union ccb *)csio); 2407 return(1); 2408 } 2409 } 2410 2411 2412 /* if we have to fake Synchronise Cache */ 2413 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2414 2415 /* 2416 * If this is a Synchronise Cache command, typically issued when 2417 * a device is closed, flush the adapter and complete now. 2418 */ 2419 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2420 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2421 ciss_flush_adapter(sc); 2422 csio->ccb_h.status = CAM_REQ_CMP; 2423 xpt_done((union ccb *)csio); 2424 return(1); 2425 } 2426 } 2427 2428 return(0); 2429 } 2430 2431 /************************************************************************ 2432 * Check for possibly-completed commands. 2433 */ 2434 static void 2435 ciss_cam_poll(struct cam_sim *sim) 2436 { 2437 struct ciss_softc *sc = cam_sim_softc(sim); 2438 2439 debug_called(2); 2440 2441 ciss_done(sc); 2442 } 2443 2444 /************************************************************************ 2445 * Handle completion of a command - pass results back through the CCB 2446 */ 2447 static void 2448 ciss_cam_complete(struct ciss_request *cr) 2449 { 2450 struct ciss_softc *sc; 2451 struct ciss_command *cc; 2452 struct ciss_error_info *ce; 2453 struct ccb_scsiio *csio; 2454 int scsi_status; 2455 int command_status; 2456 2457 debug_called(2); 2458 2459 sc = cr->cr_sc; 2460 cc = CISS_FIND_COMMAND(cr); 2461 ce = (struct ciss_error_info *)&(cc->sg[0]); 2462 csio = (struct ccb_scsiio *)cr->cr_private; 2463 2464 /* 2465 * Extract status values from request. 2466 */ 2467 ciss_report_request(cr, &command_status, &scsi_status); 2468 csio->scsi_status = scsi_status; 2469 2470 /* 2471 * Handle specific SCSI status values. 2472 */ 2473 switch(scsi_status) { 2474 /* no status due to adapter error */ 2475 case -1: 2476 debug(0, "adapter error"); 2477 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2478 break; 2479 2480 /* no status due to command completed OK */ 2481 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2482 debug(2, "SCSI_STATUS_OK"); 2483 csio->ccb_h.status = CAM_REQ_CMP; 2484 break; 2485 2486 /* check condition, sense data included */ 2487 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2488 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2489 ce->sense_length, ce->residual_count); 2490 bzero(&csio->sense_data, SSD_FULL_SIZE); 2491 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2492 csio->sense_len = ce->sense_length; 2493 csio->resid = ce->residual_count; 2494 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2495 #ifdef CISS_DEBUG 2496 { 2497 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2498 debug(0, "sense key %x", sns->flags & SSD_KEY); 2499 } 2500 #endif 2501 break; 2502 2503 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2504 debug(0, "SCSI_STATUS_BUSY"); 2505 csio->ccb_h.status = CAM_SCSI_BUSY; 2506 break; 2507 2508 default: 2509 debug(0, "unknown status 0x%x", csio->scsi_status); 2510 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2511 break; 2512 } 2513 2514 /* handle post-command fixup */ 2515 ciss_cam_complete_fixup(sc, csio); 2516 2517 /* tell CAM we're ready for more commands */ 2518 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2519 2520 xpt_done((union ccb *)csio); 2521 ciss_release_request(cr); 2522 } 2523 2524 /******************************************************************************** 2525 * Fix up the result of some commands here. 2526 */ 2527 static void 2528 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2529 { 2530 struct scsi_inquiry_data *inq; 2531 struct ciss_ldrive *cl; 2532 int target; 2533 2534 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2535 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2536 2537 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2538 target = csio->ccb_h.target_id; 2539 cl = &sc->ciss_logical[target]; 2540 2541 padstr(inq->vendor, "COMPAQ", 8); 2542 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2543 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2544 } 2545 } 2546 2547 2548 /******************************************************************************** 2549 * Find a peripheral attached at (target) 2550 */ 2551 static struct cam_periph * 2552 ciss_find_periph(struct ciss_softc *sc, int target) 2553 { 2554 struct cam_periph *periph; 2555 struct cam_path *path; 2556 int status; 2557 2558 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2559 if (status == CAM_REQ_CMP) { 2560 periph = cam_periph_find(path, NULL); 2561 xpt_free_path(path); 2562 } else { 2563 periph = NULL; 2564 } 2565 return(periph); 2566 } 2567 2568 /******************************************************************************** 2569 * Name the device at (target) 2570 * 2571 * XXX is this strictly correct? 2572 */ 2573 static int 2574 ciss_name_device(struct ciss_softc *sc, int target) 2575 { 2576 struct cam_periph *periph; 2577 2578 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2579 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2580 return(0); 2581 } 2582 sc->ciss_logical[target].cl_name[0] = 0; 2583 return(ENOENT); 2584 } 2585 2586 /************************************************************************ 2587 * Periodic status monitoring. 2588 */ 2589 static void 2590 ciss_periodic(void *arg) 2591 { 2592 struct ciss_softc *sc; 2593 2594 debug_called(1); 2595 2596 sc = (struct ciss_softc *)arg; 2597 2598 /* 2599 * Check the adapter heartbeat. 2600 */ 2601 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2602 sc->ciss_heart_attack++; 2603 debug(0, "adapter heart attack in progress 0x%x/%d", 2604 sc->ciss_heartbeat, sc->ciss_heart_attack); 2605 if (sc->ciss_heart_attack == 3) { 2606 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2607 /* XXX should reset adapter here */ 2608 } 2609 } else { 2610 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2611 sc->ciss_heart_attack = 0; 2612 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2613 } 2614 2615 /* 2616 * If the notify event request has died for some reason, or has 2617 * not started yet, restart it. 2618 */ 2619 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2620 debug(0, "(re)starting Event Notify chain"); 2621 ciss_notify_event(sc); 2622 } 2623 2624 /* 2625 * Reschedule. 2626 */ 2627 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2628 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2629 } 2630 2631 /************************************************************************ 2632 * Request a notification response from the adapter. 2633 * 2634 * If (cr) is NULL, this is the first request of the adapter, so 2635 * reset the adapter's message pointer and start with the oldest 2636 * message available. 2637 */ 2638 static void 2639 ciss_notify_event(struct ciss_softc *sc) 2640 { 2641 struct ciss_request *cr; 2642 struct ciss_command *cc; 2643 struct ciss_notify_cdb *cnc; 2644 int error; 2645 2646 debug_called(1); 2647 2648 cr = sc->ciss_periodic_notify; 2649 2650 /* get a request if we don't already have one */ 2651 if (cr == NULL) { 2652 if ((error = ciss_get_request(sc, &cr)) != 0) { 2653 debug(0, "can't get notify event request"); 2654 goto out; 2655 } 2656 sc->ciss_periodic_notify = cr; 2657 cr->cr_complete = ciss_notify_complete; 2658 debug(1, "acquired request %d", cr->cr_tag); 2659 } 2660 2661 /* 2662 * Get a databuffer if we don't already have one, note that the 2663 * adapter command wants a larger buffer than the actual 2664 * structure. 2665 */ 2666 if (cr->cr_data == NULL) { 2667 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2668 debug(0, "can't get notify event request buffer"); 2669 error = ENOMEM; 2670 goto out; 2671 } 2672 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2673 } 2674 2675 /* re-setup the request's command (since we never release it) XXX overkill*/ 2676 ciss_preen_command(cr); 2677 2678 /* (re)build the notify event command */ 2679 cc = CISS_FIND_COMMAND(cr); 2680 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2681 cc->header.address.physical.bus = 0; 2682 cc->header.address.physical.target = 0; 2683 2684 cc->cdb.cdb_length = sizeof(*cnc); 2685 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2686 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2687 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2688 cc->cdb.timeout = 0; /* no timeout, we hope */ 2689 2690 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2691 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2692 cnc->opcode = CISS_OPCODE_READ; 2693 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2694 cnc->timeout = 0; /* no timeout, we hope */ 2695 cnc->synchronous = 0; 2696 cnc->ordered = 0; 2697 cnc->seek_to_oldest = 0; 2698 cnc->new_only = 0; 2699 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2700 2701 /* submit the request */ 2702 error = ciss_start(cr); 2703 2704 out: 2705 if (error) { 2706 if (cr != NULL) { 2707 if (cr->cr_data != NULL) 2708 free(cr->cr_data, CISS_MALLOC_CLASS); 2709 ciss_release_request(cr); 2710 } 2711 sc->ciss_periodic_notify = NULL; 2712 debug(0, "can't submit notify event request"); 2713 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2714 } else { 2715 debug(1, "notify event submitted"); 2716 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2717 } 2718 } 2719 2720 static void 2721 ciss_notify_complete(struct ciss_request *cr) 2722 { 2723 struct ciss_command *cc; 2724 struct ciss_notify *cn; 2725 struct ciss_softc *sc; 2726 int scsi_status; 2727 int command_status; 2728 2729 debug_called(1); 2730 2731 cc = CISS_FIND_COMMAND(cr); 2732 cn = (struct ciss_notify *)cr->cr_data; 2733 sc = cr->cr_sc; 2734 2735 /* 2736 * Report request results, decode status. 2737 */ 2738 ciss_report_request(cr, &command_status, &scsi_status); 2739 2740 /* 2741 * Abort the chain on a fatal error. 2742 * 2743 * XXX which of these are actually errors? 2744 */ 2745 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2746 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2747 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2748 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2749 ciss_name_command_status(command_status)); 2750 ciss_release_request(cr); 2751 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2752 return; 2753 } 2754 2755 /* 2756 * If the adapter gave us a text message, print it. 2757 */ 2758 if (cn->message[0] != 0) 2759 ciss_printf(sc, "*** %.80s\n", cn->message); 2760 2761 debug(0, "notify event class %d subclass %d detail %d", 2762 cn->class, cn->subclass, cn->detail); 2763 2764 /* 2765 * If there's room, save the event for a user-level tool. 2766 */ 2767 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2768 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2769 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2770 } 2771 2772 /* 2773 * Some events are directly of interest to us. 2774 */ 2775 switch (cn->class) { 2776 case CISS_NOTIFY_LOGICAL: 2777 ciss_notify_logical(sc, cn); 2778 break; 2779 case CISS_NOTIFY_PHYSICAL: 2780 ciss_notify_physical(sc, cn); 2781 break; 2782 } 2783 2784 /* 2785 * If the response indicates that the notifier has been aborted, 2786 * release the notifier command. 2787 */ 2788 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2789 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2790 (cn->detail == 1)) { 2791 debug(0, "notifier exiting"); 2792 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2793 ciss_release_request(cr); 2794 sc->ciss_periodic_notify = NULL; 2795 wakeup(&sc->ciss_periodic_notify); 2796 } 2797 2798 /* 2799 * Send a new notify event command, if we're not aborting. 2800 */ 2801 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2802 ciss_notify_event(sc); 2803 } 2804 } 2805 2806 /************************************************************************ 2807 * Abort the Notify Event chain. 2808 * 2809 * Note that we can't just abort the command in progress; we have to 2810 * explicitly issue an Abort Notify Event command in order for the 2811 * adapter to clean up correctly. 2812 * 2813 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2814 * the chain will not restart itself. 2815 */ 2816 static int 2817 ciss_notify_abort(struct ciss_softc *sc) 2818 { 2819 struct ciss_request *cr; 2820 struct ciss_command *cc; 2821 struct ciss_notify_cdb *cnc; 2822 int error, s, command_status, scsi_status; 2823 2824 debug_called(1); 2825 2826 cr = NULL; 2827 error = 0; 2828 2829 /* verify that there's an outstanding command */ 2830 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2831 goto out; 2832 2833 /* get a command to issue the abort with */ 2834 if ((error = ciss_get_request(sc, &cr))) 2835 goto out; 2836 2837 /* get a buffer for the result */ 2838 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2839 debug(0, "can't get notify event request buffer"); 2840 error = ENOMEM; 2841 goto out; 2842 } 2843 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2844 2845 /* build the CDB */ 2846 cc = CISS_FIND_COMMAND(cr); 2847 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2848 cc->header.address.physical.bus = 0; 2849 cc->header.address.physical.target = 0; 2850 cc->cdb.cdb_length = sizeof(*cnc); 2851 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2852 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2853 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2854 cc->cdb.timeout = 0; /* no timeout, we hope */ 2855 2856 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2857 bzero(cnc, sizeof(*cnc)); 2858 cnc->opcode = CISS_OPCODE_WRITE; 2859 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2860 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2861 2862 ciss_print_request(cr); 2863 2864 /* 2865 * Submit the request and wait for it to complete. 2866 */ 2867 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2868 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2869 goto out; 2870 } 2871 2872 /* 2873 * Check response. 2874 */ 2875 ciss_report_request(cr, &command_status, &scsi_status); 2876 switch(command_status) { 2877 case CISS_CMD_STATUS_SUCCESS: 2878 break; 2879 case CISS_CMD_STATUS_INVALID_COMMAND: 2880 /* 2881 * Some older adapters don't support the CISS version of this 2882 * command. Fall back to using the BMIC version. 2883 */ 2884 error = ciss_notify_abort_bmic(sc); 2885 if (error != 0) 2886 goto out; 2887 break; 2888 2889 case CISS_CMD_STATUS_TARGET_STATUS: 2890 /* 2891 * This can happen if the adapter thinks there wasn't an outstanding 2892 * Notify Event command but we did. We clean up here. 2893 */ 2894 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2895 if (sc->ciss_periodic_notify != NULL) 2896 ciss_release_request(sc->ciss_periodic_notify); 2897 error = 0; 2898 goto out; 2899 } 2900 /* FALLTHROUGH */ 2901 2902 default: 2903 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2904 ciss_name_command_status(command_status)); 2905 error = EIO; 2906 goto out; 2907 } 2908 2909 /* 2910 * Sleep waiting for the notifier command to complete. Note 2911 * that if it doesn't, we may end up in a bad situation, since 2912 * the adapter may deliver it later. Also note that the adapter 2913 * requires the Notify Event command to be cancelled in order to 2914 * maintain internal bookkeeping. 2915 */ 2916 s = splcam(); 2917 while (sc->ciss_periodic_notify != NULL) { 2918 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2919 if (error == EWOULDBLOCK) { 2920 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2921 break; 2922 } 2923 } 2924 splx(s); 2925 2926 out: 2927 /* release the cancel request */ 2928 if (cr != NULL) { 2929 if (cr->cr_data != NULL) 2930 free(cr->cr_data, CISS_MALLOC_CLASS); 2931 ciss_release_request(cr); 2932 } 2933 if (error == 0) 2934 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2935 return(error); 2936 } 2937 2938 /************************************************************************ 2939 * Abort the Notify Event chain using a BMIC command. 2940 */ 2941 static int 2942 ciss_notify_abort_bmic(struct ciss_softc *sc) 2943 { 2944 struct ciss_request *cr; 2945 int error, command_status; 2946 2947 debug_called(1); 2948 2949 cr = NULL; 2950 error = 0; 2951 2952 /* verify that there's an outstanding command */ 2953 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2954 goto out; 2955 2956 /* 2957 * Build a BMIC command to cancel the Notify on Event command. 2958 * 2959 * Note that we are sending a CISS opcode here. Odd. 2960 */ 2961 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2962 NULL, 0)) != 0) 2963 goto out; 2964 2965 /* 2966 * Submit the request and wait for it to complete. 2967 */ 2968 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2969 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2970 goto out; 2971 } 2972 2973 /* 2974 * Check response. 2975 */ 2976 ciss_report_request(cr, &command_status, NULL); 2977 switch(command_status) { 2978 case CISS_CMD_STATUS_SUCCESS: 2979 break; 2980 default: 2981 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2982 ciss_name_command_status(command_status)); 2983 error = EIO; 2984 goto out; 2985 } 2986 2987 out: 2988 if (cr != NULL) 2989 ciss_release_request(cr); 2990 return(error); 2991 } 2992 2993 /************************************************************************ 2994 * Handle a notify event relating to the status of a logical drive. 2995 * 2996 * XXX need to be able to defer some of these to properly handle 2997 * calling the "ID Physical drive" command, unless the 'extended' 2998 * drive IDs are always in BIG_MAP format. 2999 */ 3000 static void 3001 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3002 { 3003 struct ciss_ldrive *ld; 3004 int ostatus; 3005 3006 debug_called(2); 3007 3008 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3009 3010 switch (cn->subclass) { 3011 case CISS_NOTIFY_LOGICAL_STATUS: 3012 switch (cn->detail) { 3013 case 0: 3014 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3015 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3016 cn->data.logical_status.logical_drive, ld->cl_name, 3017 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3018 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3019 cn->data.logical_status.spare_state, 3020 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3021 3022 /* 3023 * Update our idea of the drive's status. 3024 */ 3025 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3026 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3027 if (ld->cl_lstatus != NULL) 3028 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3029 3030 #if 0 3031 /* 3032 * Have CAM rescan the drive if its status has changed. 3033 */ 3034 if (ostatus != ld->cl_status) 3035 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3036 #endif 3037 3038 break; 3039 3040 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3041 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3042 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3043 cn->data.logical_status.logical_drive, ld->cl_name); 3044 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3045 break; 3046 3047 case 2: 3048 case 3: 3049 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3050 cn->data.rebuild_aborted.logical_drive, 3051 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3052 (cn->detail == 2) ? "read" : "write"); 3053 break; 3054 } 3055 break; 3056 3057 case CISS_NOTIFY_LOGICAL_ERROR: 3058 if (cn->detail == 0) { 3059 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3060 cn->data.io_error.logical_drive, 3061 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3062 cn->data.io_error.failure_bus, 3063 cn->data.io_error.failure_drive); 3064 /* XXX should we take the drive down at this point, or will we be told? */ 3065 } 3066 break; 3067 3068 case CISS_NOTIFY_LOGICAL_SURFACE: 3069 if (cn->detail == 0) 3070 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3071 cn->data.consistency_completed.logical_drive, 3072 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3073 break; 3074 } 3075 } 3076 3077 /************************************************************************ 3078 * Handle a notify event relating to the status of a physical drive. 3079 */ 3080 static void 3081 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3082 { 3083 3084 } 3085 3086 /************************************************************************ 3087 * Print a request. 3088 */ 3089 static void 3090 ciss_print_request(struct ciss_request *cr) 3091 { 3092 struct ciss_softc *sc; 3093 struct ciss_command *cc; 3094 int i; 3095 3096 sc = cr->cr_sc; 3097 cc = CISS_FIND_COMMAND(cr); 3098 3099 ciss_printf(sc, "REQUEST @ %p\n", cr); 3100 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3101 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3102 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3103 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3104 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3105 switch(cc->header.address.mode.mode) { 3106 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3107 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3108 ciss_printf(sc, " physical bus %d target %d\n", 3109 cc->header.address.physical.bus, cc->header.address.physical.target); 3110 break; 3111 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3112 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3113 break; 3114 } 3115 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3116 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3117 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3118 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3119 cc->cdb.cdb_length, 3120 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3121 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3122 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3123 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3124 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3125 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3126 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3127 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3128 3129 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3130 /* XXX print error info */ 3131 } else { 3132 /* since we don't use chained s/g, don't support it here */ 3133 for (i = 0; i < cc->header.sg_in_list; i++) { 3134 if ((i % 4) == 0) 3135 ciss_printf(sc, " "); 3136 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3137 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3138 printf("\n"); 3139 } 3140 } 3141 } 3142 3143 /************************************************************************ 3144 * Print information about the status of a logical drive. 3145 */ 3146 static void 3147 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3148 { 3149 int bus, target, i; 3150 3151 if (ld->cl_lstatus == NULL) { 3152 printf("does not exist\n"); 3153 return; 3154 } 3155 3156 /* print drive status */ 3157 switch(ld->cl_lstatus->status) { 3158 case CISS_LSTATUS_OK: 3159 printf("online\n"); 3160 break; 3161 case CISS_LSTATUS_INTERIM_RECOVERY: 3162 printf("in interim recovery mode\n"); 3163 break; 3164 case CISS_LSTATUS_READY_RECOVERY: 3165 printf("ready to begin recovery\n"); 3166 break; 3167 case CISS_LSTATUS_RECOVERING: 3168 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3169 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3170 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3171 bus, target, ld->cl_lstatus->blocks_to_recover); 3172 break; 3173 case CISS_LSTATUS_EXPANDING: 3174 printf("being expanded, %u blocks remaining\n", 3175 ld->cl_lstatus->blocks_to_recover); 3176 break; 3177 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3178 printf("queued for expansion\n"); 3179 break; 3180 case CISS_LSTATUS_FAILED: 3181 printf("queued for expansion\n"); 3182 break; 3183 case CISS_LSTATUS_WRONG_PDRIVE: 3184 printf("wrong physical drive inserted\n"); 3185 break; 3186 case CISS_LSTATUS_MISSING_PDRIVE: 3187 printf("missing a needed physical drive\n"); 3188 break; 3189 case CISS_LSTATUS_BECOMING_READY: 3190 printf("becoming ready\n"); 3191 break; 3192 } 3193 3194 /* print failed physical drives */ 3195 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3196 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3197 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3198 if (bus == -1) 3199 continue; 3200 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3201 ld->cl_lstatus->drive_failure_map[i]); 3202 } 3203 } 3204 3205 #ifdef CISS_DEBUG 3206 /************************************************************************ 3207 * Print information about the controller/driver. 3208 */ 3209 static void 3210 ciss_print_adapter(struct ciss_softc *sc) 3211 { 3212 int i; 3213 3214 ciss_printf(sc, "ADAPTER:\n"); 3215 for (i = 0; i < CISSQ_COUNT; i++) { 3216 ciss_printf(sc, "%s %d/%d\n", 3217 i == 0 ? "free" : 3218 i == 1 ? "busy" : "complete", 3219 sc->ciss_qstat[i].q_length, 3220 sc->ciss_qstat[i].q_max); 3221 } 3222 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3223 ciss_printf(sc, "notify_head/tail %d/%d\n", 3224 sc->ciss_notify_head, sc->ciss_notify_tail); 3225 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3226 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3227 3228 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3229 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3230 ciss_print_ldrive(sc, sc->ciss_logical + i); 3231 } 3232 3233 for (i = 1; i < sc->ciss_max_requests; i++) 3234 ciss_print_request(sc->ciss_request + i); 3235 3236 } 3237 3238 /* DDB hook */ 3239 static void 3240 ciss_print0(void) 3241 { 3242 struct ciss_softc *sc; 3243 3244 sc = devclass_get_softc(devclass_find("ciss"), 0); 3245 if (sc == NULL) { 3246 printf("no ciss controllers\n"); 3247 } else { 3248 ciss_print_adapter(sc); 3249 } 3250 } 3251 #endif 3252 3253 /************************************************************************ 3254 * Return a name for a logical drive status value. 3255 */ 3256 static const char * 3257 ciss_name_ldrive_status(int status) 3258 { 3259 switch (status) { 3260 case CISS_LSTATUS_OK: 3261 return("OK"); 3262 case CISS_LSTATUS_FAILED: 3263 return("failed"); 3264 case CISS_LSTATUS_NOT_CONFIGURED: 3265 return("not configured"); 3266 case CISS_LSTATUS_INTERIM_RECOVERY: 3267 return("interim recovery"); 3268 case CISS_LSTATUS_READY_RECOVERY: 3269 return("ready for recovery"); 3270 case CISS_LSTATUS_RECOVERING: 3271 return("recovering"); 3272 case CISS_LSTATUS_WRONG_PDRIVE: 3273 return("wrong physical drive inserted"); 3274 case CISS_LSTATUS_MISSING_PDRIVE: 3275 return("missing physical drive"); 3276 case CISS_LSTATUS_EXPANDING: 3277 return("expanding"); 3278 case CISS_LSTATUS_BECOMING_READY: 3279 return("becoming ready"); 3280 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3281 return("queued for expansion"); 3282 } 3283 return("unknown status"); 3284 } 3285 3286 /************************************************************************ 3287 * Return an online/offline/nonexistent value for a logical drive 3288 * status value. 3289 */ 3290 static int 3291 ciss_decode_ldrive_status(int status) 3292 { 3293 switch(status) { 3294 case CISS_LSTATUS_NOT_CONFIGURED: 3295 return(CISS_LD_NONEXISTENT); 3296 3297 case CISS_LSTATUS_OK: 3298 case CISS_LSTATUS_INTERIM_RECOVERY: 3299 case CISS_LSTATUS_READY_RECOVERY: 3300 case CISS_LSTATUS_RECOVERING: 3301 case CISS_LSTATUS_EXPANDING: 3302 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3303 return(CISS_LD_ONLINE); 3304 3305 case CISS_LSTATUS_FAILED: 3306 case CISS_LSTATUS_WRONG_PDRIVE: 3307 case CISS_LSTATUS_MISSING_PDRIVE: 3308 case CISS_LSTATUS_BECOMING_READY: 3309 default: 3310 return(CISS_LD_OFFLINE); 3311 } 3312 } 3313 3314 3315 /************************************************************************ 3316 * Return a name for a logical drive's organisation. 3317 */ 3318 static const char * 3319 ciss_name_ldrive_org(int org) 3320 { 3321 switch(org) { 3322 case CISS_LDRIVE_RAID0: 3323 return("RAID 0"); 3324 case CISS_LDRIVE_RAID1: 3325 return("RAID 1"); 3326 case CISS_LDRIVE_RAID4: 3327 return("RAID 4"); 3328 case CISS_LDRIVE_RAID5: 3329 return("RAID 5"); 3330 } 3331 return("unkown"); 3332 } 3333 3334 /************************************************************************ 3335 * Return a name for a command status value. 3336 */ 3337 static const char * 3338 ciss_name_command_status(int status) 3339 { 3340 switch(status) { 3341 case CISS_CMD_STATUS_SUCCESS: 3342 return("success"); 3343 case CISS_CMD_STATUS_TARGET_STATUS: 3344 return("target status"); 3345 case CISS_CMD_STATUS_DATA_UNDERRUN: 3346 return("data underrun"); 3347 case CISS_CMD_STATUS_DATA_OVERRUN: 3348 return("data overrun"); 3349 case CISS_CMD_STATUS_INVALID_COMMAND: 3350 return("invalid command"); 3351 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3352 return("protocol error"); 3353 case CISS_CMD_STATUS_HARDWARE_ERROR: 3354 return("hardware error"); 3355 case CISS_CMD_STATUS_CONNECTION_LOST: 3356 return("connection lost"); 3357 case CISS_CMD_STATUS_ABORTED: 3358 return("aborted"); 3359 case CISS_CMD_STATUS_ABORT_FAILED: 3360 return("abort failed"); 3361 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3362 return("unsolicited abort"); 3363 case CISS_CMD_STATUS_TIMEOUT: 3364 return("timeout"); 3365 case CISS_CMD_STATUS_UNABORTABLE: 3366 return("unabortable"); 3367 } 3368 return("unknown status"); 3369 } 3370 3371 /************************************************************************ 3372 * Handle an open on the control device. 3373 */ 3374 static int 3375 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3376 { 3377 struct ciss_softc *sc; 3378 3379 debug_called(1); 3380 3381 sc = (struct ciss_softc *)dev->si_drv1; 3382 3383 /* we might want to veto if someone already has us open */ 3384 3385 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3386 return(0); 3387 } 3388 3389 /************************************************************************ 3390 * Handle the last close on the control device. 3391 */ 3392 static int 3393 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3394 { 3395 struct ciss_softc *sc; 3396 3397 debug_called(1); 3398 3399 sc = (struct ciss_softc *)dev->si_drv1; 3400 3401 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3402 return (0); 3403 } 3404 3405 /******************************************************************************** 3406 * Handle adapter-specific control operations. 3407 * 3408 * Note that the API here is compatible with the Linux driver, in order to 3409 * simplify the porting of Compaq's userland tools. 3410 */ 3411 static int 3412 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3413 { 3414 struct ciss_softc *sc; 3415 int error; 3416 3417 debug_called(1); 3418 3419 sc = (struct ciss_softc *)dev->si_drv1; 3420 error = 0; 3421 3422 switch(cmd) { 3423 case CCISS_GETPCIINFO: 3424 { 3425 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3426 3427 pis->bus = pci_get_bus(sc->ciss_dev); 3428 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3429 pis->board_id = pci_get_devid(sc->ciss_dev); 3430 3431 break; 3432 } 3433 3434 case CCISS_GETINTINFO: 3435 { 3436 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3437 3438 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3439 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3440 3441 break; 3442 } 3443 3444 case CCISS_SETINTINFO: 3445 { 3446 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3447 3448 if ((cis->delay == 0) && (cis->count == 0)) { 3449 error = EINVAL; 3450 break; 3451 } 3452 3453 /* 3454 * XXX apparently this is only safe if the controller is idle, 3455 * we should suspend it before doing this. 3456 */ 3457 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3458 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3459 3460 if (ciss_update_config(sc)) 3461 error = EIO; 3462 3463 /* XXX resume the controller here */ 3464 break; 3465 } 3466 3467 case CCISS_GETNODENAME: 3468 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3469 sizeof(NodeName_type)); 3470 break; 3471 3472 case CCISS_SETNODENAME: 3473 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3474 sizeof(NodeName_type)); 3475 if (ciss_update_config(sc)) 3476 error = EIO; 3477 break; 3478 3479 case CCISS_GETHEARTBEAT: 3480 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3481 break; 3482 3483 case CCISS_GETBUSTYPES: 3484 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3485 break; 3486 3487 case CCISS_GETFIRMVER: 3488 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3489 sizeof(FirmwareVer_type)); 3490 break; 3491 3492 case CCISS_GETDRIVERVER: 3493 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3494 break; 3495 3496 case CCISS_REVALIDVOLS: 3497 /* 3498 * This is a bit ugly; to do it "right" we really need 3499 * to find any disks that have changed, kick CAM off them, 3500 * then rescan only these disks. It'd be nice if they 3501 * a) told us which disk(s) they were going to play with, 3502 * and b) which ones had arrived. 8( 3503 */ 3504 break; 3505 3506 case CCISS_PASSTHRU: 3507 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3508 break; 3509 3510 default: 3511 debug(0, "unknown ioctl 0x%lx", cmd); 3512 3513 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3514 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3515 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3516 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3517 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3518 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3519 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3520 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3521 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3522 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3523 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3524 3525 error = ENOIOCTL; 3526 break; 3527 } 3528 3529 return(error); 3530 } 3531