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