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: src/sys/dev/ciss/ciss.c,v 1.2.2.6 2003/02/18 22:27:41 ps Exp $ 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 80 #include <cam/cam.h> 81 #include <cam/cam_ccb.h> 82 #include <cam/cam_periph.h> 83 #include <cam/cam_sim.h> 84 #include <cam/cam_xpt_sim.h> 85 #include <cam/scsi/scsi_all.h> 86 #include <cam/scsi/scsi_message.h> 87 88 #include <machine/clock.h> 89 #include <machine/bus_memio.h> 90 #include <machine/bus.h> 91 #include <machine/endian.h> 92 #include <machine/resource.h> 93 #include <sys/rman.h> 94 95 #include <pci/pcireg.h> 96 #include <pci/pcivar.h> 97 98 #include <dev/ciss/cissreg.h> 99 #include <dev/ciss/cissvar.h> 100 #include <dev/ciss/cissio.h> 101 102 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 103 104 /* pci interface */ 105 static int ciss_lookup(device_t dev); 106 static int ciss_probe(device_t dev); 107 static int ciss_attach(device_t dev); 108 static int ciss_detach(device_t dev); 109 static int ciss_shutdown(device_t dev); 110 111 /* (de)initialisation functions, control wrappers */ 112 static int ciss_init_pci(struct ciss_softc *sc); 113 static int ciss_wait_adapter(struct ciss_softc *sc); 114 static int ciss_flush_adapter(struct ciss_softc *sc); 115 static int ciss_init_requests(struct ciss_softc *sc); 116 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 117 int nseg, int error); 118 static int ciss_identify_adapter(struct ciss_softc *sc); 119 static int ciss_init_logical(struct ciss_softc *sc); 120 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 121 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 122 static int ciss_update_config(struct ciss_softc *sc); 123 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 124 static void ciss_accept_media_complete(struct ciss_request *cr); 125 static void ciss_free(struct ciss_softc *sc); 126 127 /* request submission/completion */ 128 static int ciss_start(struct ciss_request *cr); 129 static void ciss_done(struct ciss_softc *sc); 130 static void ciss_intr(void *arg); 131 static void ciss_complete(struct ciss_softc *sc); 132 static int ciss_report_request(struct ciss_request *cr, int *command_status, 133 int *scsi_status); 134 static int ciss_synch_request(struct ciss_request *cr, int timeout); 135 static int ciss_poll_request(struct ciss_request *cr, int timeout); 136 static int ciss_wait_request(struct ciss_request *cr, int timeout); 137 #if 0 138 static int ciss_abort_request(struct ciss_request *cr); 139 #endif 140 141 /* request queueing */ 142 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 143 static void ciss_preen_command(struct ciss_request *cr); 144 static void ciss_release_request(struct ciss_request *cr); 145 146 /* request helpers */ 147 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 148 int opcode, void **bufp, size_t bufsize); 149 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 150 151 /* DMA map/unmap */ 152 static int ciss_map_request(struct ciss_request *cr); 153 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 154 int nseg, int error); 155 static void ciss_unmap_request(struct ciss_request *cr); 156 157 /* CAM interface */ 158 static int ciss_cam_init(struct ciss_softc *sc); 159 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 160 static void ciss_cam_rescan_all(struct ciss_softc *sc); 161 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 162 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 163 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 164 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 165 static void ciss_cam_poll(struct cam_sim *sim); 166 static void ciss_cam_complete(struct ciss_request *cr); 167 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 168 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 169 static int ciss_name_device(struct ciss_softc *sc, int target); 170 171 /* periodic status monitoring */ 172 static void ciss_periodic(void *arg); 173 static void ciss_notify_event(struct ciss_softc *sc); 174 static void ciss_notify_complete(struct ciss_request *cr); 175 static int ciss_notify_abort(struct ciss_softc *sc); 176 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 177 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 178 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 179 180 /* debugging output */ 181 static void ciss_print_request(struct ciss_request *cr); 182 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 183 static const char *ciss_name_ldrive_status(int status); 184 static int ciss_decode_ldrive_status(int status); 185 static const char *ciss_name_ldrive_org(int org); 186 static const char *ciss_name_command_status(int status); 187 188 /* 189 * PCI bus interface. 190 */ 191 static device_method_t ciss_methods[] = { 192 /* Device interface */ 193 DEVMETHOD(device_probe, ciss_probe), 194 DEVMETHOD(device_attach, ciss_attach), 195 DEVMETHOD(device_detach, ciss_detach), 196 DEVMETHOD(device_shutdown, ciss_shutdown), 197 { 0, 0 } 198 }; 199 200 static driver_t ciss_pci_driver = { 201 "ciss", 202 ciss_methods, 203 sizeof(struct ciss_softc) 204 }; 205 206 static devclass_t ciss_devclass; 207 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 208 209 /* 210 * Control device interface. 211 */ 212 static d_open_t ciss_open; 213 static d_close_t ciss_close; 214 static d_ioctl_t ciss_ioctl; 215 216 #define CISS_CDEV_MAJOR 166 217 218 static struct cdevsw ciss_cdevsw = { 219 ciss_open, ciss_close, noread, nowrite, ciss_ioctl, 220 nopoll, nommap, nostrategy, "ciss", CISS_CDEV_MAJOR, 221 nodump, nopsize, 0, nokqfilter 222 }; 223 224 /************************************************************************ 225 * CISS adapters amazingly don't have a defined programming interface 226 * value. (One could say some very despairing things about PCI and 227 * people just not getting the general idea.) So we are forced to 228 * stick with matching against subvendor/subdevice, and thus have to 229 * be updated for every new CISS adapter that appears. 230 */ 231 #define CISS_BOARD_SA5 (1<<0) 232 #define CISS_BOARD_SA5B (1<<1) 233 234 static struct 235 { 236 u_int16_t subvendor; 237 u_int16_t subdevice; 238 int flags; 239 char *desc; 240 } ciss_vendor_data[] = { 241 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 242 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 243 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 244 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 245 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 246 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 247 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 248 { 0, 0, 0, NULL } 249 }; 250 251 /************************************************************************ 252 * Find a match for the device in our list of known adapters. 253 */ 254 static int 255 ciss_lookup(device_t dev) 256 { 257 int i; 258 259 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 260 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 261 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 262 return(i); 263 } 264 return(-1); 265 } 266 267 /************************************************************************ 268 * Match a known CISS adapter. 269 */ 270 static int 271 ciss_probe(device_t dev) 272 { 273 int i; 274 275 i = ciss_lookup(dev); 276 if (i != -1) { 277 device_set_desc(dev, ciss_vendor_data[i].desc); 278 return(-10); 279 } 280 return(ENOENT); 281 } 282 283 /************************************************************************ 284 * Attach the driver to this adapter. 285 */ 286 static int 287 ciss_attach(device_t dev) 288 { 289 struct ciss_softc *sc; 290 int i, error; 291 292 debug_called(1); 293 294 #ifdef CISS_DEBUG 295 /* print structure/union sizes */ 296 debug_struct(ciss_command); 297 debug_struct(ciss_header); 298 debug_union(ciss_device_address); 299 debug_struct(ciss_cdb); 300 debug_struct(ciss_report_cdb); 301 debug_struct(ciss_notify_cdb); 302 debug_struct(ciss_notify); 303 debug_struct(ciss_message_cdb); 304 debug_struct(ciss_error_info_pointer); 305 debug_struct(ciss_error_info); 306 debug_struct(ciss_sg_entry); 307 debug_struct(ciss_config_table); 308 debug_struct(ciss_bmic_cdb); 309 debug_struct(ciss_bmic_id_ldrive); 310 debug_struct(ciss_bmic_id_lstatus); 311 debug_struct(ciss_bmic_id_table); 312 debug_struct(ciss_bmic_id_pdrive); 313 debug_struct(ciss_bmic_blink_pdrive); 314 debug_struct(ciss_bmic_flush_cache); 315 debug_const(CISS_MAX_REQUESTS); 316 debug_const(CISS_MAX_LOGICAL); 317 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 318 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 319 debug_const(CISS_COMMAND_ALLOC_SIZE); 320 debug_const(CISS_COMMAND_SG_LENGTH); 321 322 debug_type(cciss_pci_info_struct); 323 debug_type(cciss_coalint_struct); 324 debug_type(cciss_coalint_struct); 325 debug_type(NodeName_type); 326 debug_type(NodeName_type); 327 debug_type(Heartbeat_type); 328 debug_type(BusTypes_type); 329 debug_type(FirmwareVer_type); 330 debug_type(DriverVer_type); 331 debug_type(IOCTL_Command_struct); 332 #endif 333 334 sc = device_get_softc(dev); 335 sc->ciss_dev = dev; 336 337 /* 338 * Work out adapter type. 339 */ 340 i = ciss_lookup(dev); 341 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 342 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 343 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 344 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 345 } else { 346 /* really an error on our part */ 347 ciss_printf(sc, "unable to determine hardware type\n"); 348 error = ENXIO; 349 goto out; 350 } 351 352 /* 353 * Do PCI-specific init. 354 */ 355 if ((error = ciss_init_pci(sc)) != 0) 356 goto out; 357 358 /* 359 * Initialise driver queues. 360 */ 361 ciss_initq_free(sc); 362 ciss_initq_busy(sc); 363 ciss_initq_complete(sc); 364 365 /* 366 * Initialise command/request pool. 367 */ 368 if ((error = ciss_init_requests(sc)) != 0) 369 goto out; 370 371 /* 372 * Get adapter information. 373 */ 374 if ((error = ciss_identify_adapter(sc)) != 0) 375 goto out; 376 377 /* 378 * Build our private table of logical devices. 379 */ 380 if ((error = ciss_init_logical(sc)) != 0) 381 goto out; 382 383 /* 384 * Enable interrupts so that the CAM scan can complete. 385 */ 386 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 387 388 /* 389 * Initialise the CAM interface. 390 */ 391 if ((error = ciss_cam_init(sc)) != 0) 392 goto out; 393 394 /* 395 * Start the heartbeat routine and event chain. 396 */ 397 ciss_periodic(sc); 398 399 /* 400 * Create the control device. 401 */ 402 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 403 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 404 "ciss%d", device_get_unit(sc->ciss_dev)); 405 sc->ciss_dev_t->si_drv1 = sc; 406 407 /* 408 * The adapter is running; synchronous commands can now sleep 409 * waiting for an interrupt to signal completion. 410 */ 411 sc->ciss_flags |= CISS_FLAG_RUNNING; 412 413 error = 0; 414 out: 415 if (error != 0) 416 ciss_free(sc); 417 return(error); 418 } 419 420 /************************************************************************ 421 * Detach the driver from this adapter. 422 */ 423 static int 424 ciss_detach(device_t dev) 425 { 426 struct ciss_softc *sc = device_get_softc(dev); 427 428 debug_called(1); 429 430 /* flush adapter cache */ 431 ciss_flush_adapter(sc); 432 433 /* release all resources */ 434 ciss_free(sc); 435 436 return(0); 437 438 } 439 440 /************************************************************************ 441 * Prepare adapter for system shutdown. 442 */ 443 static int 444 ciss_shutdown(device_t dev) 445 { 446 struct ciss_softc *sc = device_get_softc(dev); 447 448 debug_called(1); 449 450 /* flush adapter cache */ 451 ciss_flush_adapter(sc); 452 453 return(0); 454 } 455 456 /************************************************************************ 457 * Perform PCI-specific attachment actions. 458 */ 459 static int 460 ciss_init_pci(struct ciss_softc *sc) 461 { 462 uintptr_t cbase, csize, cofs; 463 int error; 464 465 debug_called(1); 466 467 /* 468 * Allocate register window first (we need this to find the config 469 * struct). 470 */ 471 error = ENXIO; 472 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 473 if ((sc->ciss_regs_resource = 474 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 475 0, ~0, 1, RF_ACTIVE)) == NULL) { 476 ciss_printf(sc, "can't allocate register window\n"); 477 return(ENXIO); 478 } 479 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 480 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 481 482 /* 483 * Find the BAR holding the config structure. If it's not the one 484 * we already mapped for registers, map it too. 485 */ 486 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 487 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 488 if ((sc->ciss_cfg_resource = 489 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 490 0, ~0, 1, RF_ACTIVE)) == NULL) { 491 ciss_printf(sc, "can't allocate config window\n"); 492 return(ENXIO); 493 } 494 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 495 csize = rman_get_end(sc->ciss_cfg_resource) - 496 rman_get_start(sc->ciss_cfg_resource) + 1; 497 } else { 498 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 499 csize = rman_get_end(sc->ciss_regs_resource) - 500 rman_get_start(sc->ciss_regs_resource) + 1; 501 } 502 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 503 504 /* 505 * Use the base/size/offset values we just calculated to 506 * sanity-check the config structure. If it's OK, point to it. 507 */ 508 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 509 ciss_printf(sc, "config table outside window\n"); 510 return(ENXIO); 511 } 512 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 513 debug(1, "config struct at %p", sc->ciss_cfg); 514 515 /* 516 * Validate the config structure. If we supported other transport 517 * methods, we could select amongst them at this point in time. 518 */ 519 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 520 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 521 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 522 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 523 return(ENXIO); 524 } 525 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 526 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 527 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 528 sc->ciss_cfg->valence); 529 return(ENXIO); 530 } 531 532 /* 533 * Put the board into simple mode, and tell it we're using the low 534 * 4GB of RAM. Set the default interrupt coalescing options. 535 */ 536 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 537 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 538 return(ENXIO); 539 } 540 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 541 sc->ciss_cfg->command_physlimit = 0; 542 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 543 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 544 545 if (ciss_update_config(sc)) { 546 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 547 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 548 return(ENXIO); 549 } 550 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 551 ciss_printf(sc, 552 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 553 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 554 return(ENXIO); 555 } 556 557 /* 558 * Wait for the adapter to come ready. 559 */ 560 if ((error = ciss_wait_adapter(sc)) != 0) 561 return(error); 562 563 /* 564 * Turn off interrupts before we go routing anything. 565 */ 566 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 567 568 /* 569 * Allocate and set up our interrupt. 570 */ 571 sc->ciss_irq_rid = 0; 572 if ((sc->ciss_irq_resource = 573 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 574 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 575 ciss_printf(sc, "can't allocate interrupt\n"); 576 return(ENXIO); 577 } 578 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 579 &sc->ciss_intr)) { 580 ciss_printf(sc, "can't set up interrupt\n"); 581 return(ENXIO); 582 } 583 584 /* 585 * Allocate the parent bus DMA tag appropriate for our PCI 586 * interface. 587 * 588 * Note that "simple" adapters can only address within a 32-bit 589 * span. 590 */ 591 if (bus_dma_tag_create(NULL, /* parent */ 592 1, 0, /* alignment, boundary */ 593 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 594 BUS_SPACE_MAXADDR, /* highaddr */ 595 NULL, NULL, /* filter, filterarg */ 596 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 597 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 598 BUS_DMA_ALLOCNOW, /* flags */ 599 &sc->ciss_parent_dmat)) { 600 ciss_printf(sc, "can't allocate parent DMA tag\n"); 601 return(ENOMEM); 602 } 603 604 /* 605 * Create DMA tag for mapping buffers into adapter-addressable 606 * space. 607 */ 608 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 609 1, 0, /* alignment, boundary */ 610 BUS_SPACE_MAXADDR, /* lowaddr */ 611 BUS_SPACE_MAXADDR, /* highaddr */ 612 NULL, NULL, /* filter, filterarg */ 613 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 614 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 615 0, /* flags */ 616 &sc->ciss_buffer_dmat)) { 617 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 618 return(ENOMEM); 619 } 620 return(0); 621 } 622 623 /************************************************************************ 624 * Wait for the adapter to come ready. 625 */ 626 static int 627 ciss_wait_adapter(struct ciss_softc *sc) 628 { 629 int i; 630 631 debug_called(1); 632 633 /* 634 * Wait for the adapter to come ready. 635 */ 636 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 637 ciss_printf(sc, "waiting for adapter to come ready...\n"); 638 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 639 DELAY(1000000); /* one second */ 640 if (i > 30) { 641 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 642 return(EIO); 643 } 644 } 645 } 646 return(0); 647 } 648 649 /************************************************************************ 650 * Flush the adapter cache. 651 */ 652 static int 653 ciss_flush_adapter(struct ciss_softc *sc) 654 { 655 struct ciss_request *cr; 656 struct ciss_bmic_flush_cache *cbfc; 657 int error, command_status; 658 659 debug_called(1); 660 661 cr = NULL; 662 cbfc = NULL; 663 664 /* 665 * Build a BMIC request to flush the cache. We don't disable 666 * it, as we may be going to do more I/O (eg. we are emulating 667 * the Synchronise Cache command). 668 */ 669 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 670 error = ENOMEM; 671 goto out; 672 } 673 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 674 (void **)&cbfc, sizeof(*cbfc))) != 0) 675 goto out; 676 677 /* 678 * Submit the request and wait for it to complete. 679 */ 680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 681 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 682 goto out; 683 } 684 685 /* 686 * Check response. 687 */ 688 ciss_report_request(cr, &command_status, NULL); 689 switch(command_status) { 690 case CISS_CMD_STATUS_SUCCESS: 691 break; 692 default: 693 ciss_printf(sc, "error flushing cache (%s)\n", 694 ciss_name_command_status(command_status)); 695 error = EIO; 696 goto out; 697 } 698 699 out: 700 if (cbfc != NULL) 701 free(cbfc, CISS_MALLOC_CLASS); 702 if (cr != NULL) 703 ciss_release_request(cr); 704 return(error); 705 } 706 707 /************************************************************************ 708 * Allocate memory for the adapter command structures, initialise 709 * the request structures. 710 * 711 * Note that the entire set of commands are allocated in a single 712 * contiguous slab. 713 */ 714 static int 715 ciss_init_requests(struct ciss_softc *sc) 716 { 717 struct ciss_request *cr; 718 int i; 719 720 debug_called(1); 721 722 /* 723 * Calculate the number of request structures/commands we are 724 * going to provide for this adapter. 725 */ 726 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 727 728 if (1/*bootverbose*/) 729 ciss_printf(sc, "using %d of %d available commands\n", 730 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 731 732 /* 733 * Create the DMA tag for commands. 734 */ 735 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 736 1, 0, /* alignment, boundary */ 737 BUS_SPACE_MAXADDR, /* lowaddr */ 738 BUS_SPACE_MAXADDR, /* highaddr */ 739 NULL, NULL, /* filter, filterarg */ 740 CISS_COMMAND_ALLOC_SIZE * 741 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 742 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 743 0, /* flags */ 744 &sc->ciss_command_dmat)) { 745 ciss_printf(sc, "can't allocate command DMA tag\n"); 746 return(ENOMEM); 747 } 748 /* 749 * Allocate memory and make it available for DMA. 750 */ 751 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 752 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 753 ciss_printf(sc, "can't allocate command memory\n"); 754 return(ENOMEM); 755 } 756 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 757 sizeof(struct ciss_command) * sc->ciss_max_requests, 758 ciss_command_map_helper, sc, 0); 759 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 760 761 /* 762 * Set up the request and command structures, push requests onto 763 * the free queue. 764 */ 765 for (i = 1; i < sc->ciss_max_requests; i++) { 766 cr = &sc->ciss_request[i]; 767 cr->cr_sc = sc; 768 cr->cr_tag = i; 769 ciss_enqueue_free(cr); 770 } 771 return(0); 772 } 773 774 static void 775 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 776 { 777 struct ciss_softc *sc = (struct ciss_softc *)arg; 778 779 sc->ciss_command_phys = segs->ds_addr; 780 } 781 782 /************************************************************************ 783 * Identify the adapter, print some information about it. 784 */ 785 static int 786 ciss_identify_adapter(struct ciss_softc *sc) 787 { 788 struct ciss_request *cr; 789 int error, command_status; 790 791 debug_called(1); 792 793 cr = NULL; 794 795 /* 796 * Get a request, allocate storage for the adapter data. 797 */ 798 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 799 (void **)&sc->ciss_id, 800 sizeof(*sc->ciss_id))) != 0) 801 goto out; 802 803 /* 804 * Submit the request and wait for it to complete. 805 */ 806 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 807 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 808 goto out; 809 } 810 811 /* 812 * Check response. 813 */ 814 ciss_report_request(cr, &command_status, NULL); 815 switch(command_status) { 816 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 817 break; 818 case CISS_CMD_STATUS_DATA_UNDERRUN: 819 case CISS_CMD_STATUS_DATA_OVERRUN: 820 ciss_printf(sc, "data over/underrun reading adapter information\n"); 821 default: 822 ciss_printf(sc, "error reading adapter information (%s)\n", 823 ciss_name_command_status(command_status)); 824 error = EIO; 825 goto out; 826 } 827 828 /* sanity-check reply */ 829 if (!sc->ciss_id->big_map_supported) { 830 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 831 error = ENXIO; 832 goto out; 833 } 834 835 #if 0 836 /* XXX later revisions may not need this */ 837 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 838 #endif 839 840 /* XXX only really required for old 5300 adapters? */ 841 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 842 843 /* print information */ 844 if (1/*bootverbose*/) { 845 ciss_printf(sc, " %d logical drive%s configured\n", 846 sc->ciss_id->configured_logical_drives, 847 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 848 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 849 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 850 851 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 852 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 853 ciss_printf(sc, " supported I/O methods 0x%b\n", 854 sc->ciss_cfg->supported_methods, 855 "\20\1READY\2simple\3performant\4MEMQ\n"); 856 ciss_printf(sc, " active I/O method 0x%b\n", 857 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 858 ciss_printf(sc, " 4G page base 0x%08x\n", 859 sc->ciss_cfg->command_physlimit); 860 ciss_printf(sc, " interrupt coalesce delay %dus\n", 861 sc->ciss_cfg->interrupt_coalesce_delay); 862 ciss_printf(sc, " interrupt coalesce count %d\n", 863 sc->ciss_cfg->interrupt_coalesce_count); 864 ciss_printf(sc, " max outstanding commands %d\n", 865 sc->ciss_cfg->max_outstanding_commands); 866 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 867 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 868 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 869 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 870 } 871 872 out: 873 if (error) { 874 if (sc->ciss_id != NULL) { 875 free(sc->ciss_id, CISS_MALLOC_CLASS); 876 sc->ciss_id = NULL; 877 } 878 } 879 if (cr != NULL) 880 ciss_release_request(cr); 881 return(error); 882 } 883 884 /************************************************************************ 885 * Find logical drives on the adapter. 886 */ 887 static int 888 ciss_init_logical(struct ciss_softc *sc) 889 { 890 struct ciss_request *cr; 891 struct ciss_command *cc; 892 struct ciss_report_cdb *crc; 893 struct ciss_lun_report *cll; 894 int error, i; 895 size_t report_size; 896 int ndrives; 897 int command_status; 898 899 debug_called(1); 900 901 cr = NULL; 902 cll = NULL; 903 904 /* 905 * Get a request, allocate storage for the address list. 906 */ 907 if ((error = ciss_get_request(sc, &cr)) != 0) 908 goto out; 909 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 910 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 911 ciss_printf(sc, "can't allocate memory for logical drive list\n"); 912 error = ENOMEM; 913 goto out; 914 } 915 916 /* 917 * Build the Report Logical LUNs command. 918 */ 919 cc = CISS_FIND_COMMAND(cr); 920 cr->cr_data = cll; 921 cr->cr_length = report_size; 922 cr->cr_flags = CISS_REQ_DATAIN; 923 924 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 925 cc->header.address.physical.bus = 0; 926 cc->header.address.physical.target = 0; 927 cc->cdb.cdb_length = sizeof(*crc); 928 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 929 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 930 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 931 cc->cdb.timeout = 30; /* XXX better suggestions? */ 932 933 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 934 bzero(crc, sizeof(*crc)); 935 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 936 crc->length = htonl(report_size); /* big-endian field */ 937 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 938 939 /* 940 * Submit the request and wait for it to complete. (timeout 941 * here should be much greater than above) 942 */ 943 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 944 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 945 goto out; 946 } 947 948 /* 949 * Check response. Note that data over/underrun is OK. 950 */ 951 ciss_report_request(cr, &command_status, NULL); 952 switch(command_status) { 953 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 954 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 955 break; 956 case CISS_CMD_STATUS_DATA_OVERRUN: 957 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 958 CISS_MAX_LOGICAL); 959 break; 960 default: 961 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 962 ciss_name_command_status(command_status)); 963 error = EIO; 964 goto out; 965 } 966 ciss_release_request(cr); 967 cr = NULL; 968 969 /* sanity-check reply */ 970 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 971 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 972 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 973 ndrives, CISS_MAX_LOGICAL); 974 return(ENXIO); 975 } 976 977 /* 978 * Save logical drive information. 979 */ 980 if (1/*bootverbose*/) 981 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 982 if (ndrives != sc->ciss_id->configured_logical_drives) 983 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 984 ndrives, sc->ciss_id->configured_logical_drives); 985 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 986 if (i < ndrives) { 987 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 988 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 989 continue; 990 /* 991 * If the drive has had media exchanged, we should bring it online. 992 */ 993 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 994 ciss_accept_media(sc, i, 0); 995 996 } else { 997 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 998 } 999 } 1000 error = 0; 1001 1002 out: 1003 /* 1004 * Note that if the error is a timeout, we are taking a slight 1005 * risk here and assuming that the adapter will not respond at a 1006 * later time, scribbling over host memory. 1007 */ 1008 if (cr != NULL) 1009 ciss_release_request(cr); 1010 if (cll != NULL) 1011 free(cll, CISS_MALLOC_CLASS); 1012 return(error); 1013 } 1014 1015 static int 1016 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1017 { 1018 struct ciss_request *cr; 1019 struct ciss_command *cc; 1020 struct scsi_inquiry *inq; 1021 int error; 1022 int command_status; 1023 int lun; 1024 1025 cr = NULL; 1026 lun = ld->cl_address.logical.lun; 1027 1028 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1029 1030 if ((error = ciss_get_request(sc, &cr)) != 0) 1031 goto out; 1032 1033 cc = CISS_FIND_COMMAND(cr); 1034 cr->cr_data = &ld->cl_geometry; 1035 cr->cr_length = sizeof(ld->cl_geometry); 1036 cr->cr_flags = CISS_REQ_DATAIN; 1037 1038 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1039 cc->header.address.logical.lun = lun; 1040 cc->cdb.cdb_length = 6; 1041 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1042 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1043 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1044 cc->cdb.timeout = 30; 1045 1046 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1047 inq->opcode = INQUIRY; 1048 inq->byte2 = SI_EVPD; 1049 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1050 inq->length = sizeof(ld->cl_geometry); 1051 1052 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1053 ciss_printf(sc, "error getting geometry (%d)\n", error); 1054 goto out; 1055 } 1056 1057 ciss_report_request(cr, &command_status, NULL); 1058 switch(command_status) { 1059 case CISS_CMD_STATUS_SUCCESS: 1060 case CISS_CMD_STATUS_DATA_UNDERRUN: 1061 break; 1062 case CISS_CMD_STATUS_DATA_OVERRUN: 1063 ciss_printf(sc, "WARNING: Data overrun\n"); 1064 break; 1065 default: 1066 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1067 ciss_name_command_status(command_status)); 1068 break; 1069 } 1070 1071 out: 1072 if (cr != NULL) 1073 ciss_release_request(cr); 1074 return(error); 1075 } 1076 /************************************************************************ 1077 * Identify a logical drive, initialise state related to it. 1078 */ 1079 static int 1080 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1081 { 1082 struct ciss_request *cr; 1083 struct ciss_command *cc; 1084 struct ciss_bmic_cdb *cbc; 1085 int error, command_status; 1086 1087 debug_called(1); 1088 1089 cr = NULL; 1090 1091 /* 1092 * Build a BMIC request to fetch the drive ID. 1093 */ 1094 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1095 (void **)&ld->cl_ldrive, 1096 sizeof(*ld->cl_ldrive))) != 0) 1097 goto out; 1098 cc = CISS_FIND_COMMAND(cr); 1099 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1100 cbc->log_drive = ld->cl_address.logical.lun; 1101 1102 /* 1103 * Submit the request and wait for it to complete. 1104 */ 1105 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1106 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1107 goto out; 1108 } 1109 1110 /* 1111 * Check response. 1112 */ 1113 ciss_report_request(cr, &command_status, NULL); 1114 switch(command_status) { 1115 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1116 break; 1117 case CISS_CMD_STATUS_DATA_UNDERRUN: 1118 case CISS_CMD_STATUS_DATA_OVERRUN: 1119 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1120 default: 1121 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1122 ciss_name_command_status(command_status)); 1123 error = EIO; 1124 goto out; 1125 } 1126 ciss_release_request(cr); 1127 cr = NULL; 1128 1129 /* 1130 * Build a CISS BMIC command to get the logical drive status. 1131 */ 1132 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1133 goto out; 1134 1135 /* 1136 * Get the logical drive geometry. 1137 */ 1138 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1139 goto out; 1140 1141 /* 1142 * Print the drive's basic characteristics. 1143 */ 1144 if (1/*bootverbose*/) { 1145 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1146 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1147 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1148 ld->cl_ldrive->block_size)); 1149 1150 ciss_print_ldrive(sc, ld); 1151 } 1152 out: 1153 if (error != 0) { 1154 /* make the drive not-exist */ 1155 ld->cl_status = CISS_LD_NONEXISTENT; 1156 if (ld->cl_ldrive != NULL) { 1157 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1158 ld->cl_ldrive = NULL; 1159 } 1160 if (ld->cl_lstatus != NULL) { 1161 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1162 ld->cl_lstatus = NULL; 1163 } 1164 } 1165 if (cr != NULL) 1166 ciss_release_request(cr); 1167 1168 return(error); 1169 } 1170 1171 /************************************************************************ 1172 * Get status for a logical drive. 1173 * 1174 * XXX should we also do this in response to Test Unit Ready? 1175 */ 1176 static int 1177 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1178 { 1179 struct ciss_request *cr; 1180 struct ciss_command *cc; 1181 struct ciss_bmic_cdb *cbc; 1182 int error, command_status; 1183 1184 /* 1185 * Build a CISS BMIC command to get the logical drive status. 1186 */ 1187 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1188 (void **)&ld->cl_lstatus, 1189 sizeof(*ld->cl_lstatus))) != 0) 1190 goto out; 1191 cc = CISS_FIND_COMMAND(cr); 1192 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1193 cbc->log_drive = ld->cl_address.logical.lun; 1194 1195 /* 1196 * Submit the request and wait for it to complete. 1197 */ 1198 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1199 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1200 goto out; 1201 } 1202 1203 /* 1204 * Check response. 1205 */ 1206 ciss_report_request(cr, &command_status, NULL); 1207 switch(command_status) { 1208 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1209 break; 1210 case CISS_CMD_STATUS_DATA_UNDERRUN: 1211 case CISS_CMD_STATUS_DATA_OVERRUN: 1212 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1213 default: 1214 ciss_printf(sc, "error reading logical drive status (%s)\n", 1215 ciss_name_command_status(command_status)); 1216 error = EIO; 1217 goto out; 1218 } 1219 1220 /* 1221 * Set the drive's summary status based on the returned status. 1222 * 1223 * XXX testing shows that a failed JBOD drive comes back at next 1224 * boot in "queued for expansion" mode. WTF? 1225 */ 1226 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1227 1228 out: 1229 if (cr != NULL) 1230 ciss_release_request(cr); 1231 return(error); 1232 } 1233 1234 /************************************************************************ 1235 * Notify the adapter of a config update. 1236 */ 1237 static int 1238 ciss_update_config(struct ciss_softc *sc) 1239 { 1240 int i; 1241 1242 debug_called(1); 1243 1244 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1245 for (i = 0; i < 1000; i++) { 1246 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1247 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1248 return(0); 1249 } 1250 DELAY(1000); 1251 } 1252 return(1); 1253 } 1254 1255 /************************************************************************ 1256 * Accept new media into a logical drive. 1257 * 1258 * XXX The drive has previously been offline; it would be good if we 1259 * could make sure it's not open right now. 1260 */ 1261 static int 1262 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1263 { 1264 struct ciss_request *cr; 1265 struct ciss_command *cc; 1266 struct ciss_bmic_cdb *cbc; 1267 int error; 1268 1269 debug(0, "bringing logical drive %d back online %ssynchronously", 1270 ldrive, async ? "a" : ""); 1271 1272 /* 1273 * Build a CISS BMIC command to bring the drive back online. 1274 */ 1275 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1276 NULL, 0)) != 0) 1277 goto out; 1278 cc = CISS_FIND_COMMAND(cr); 1279 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1280 cbc->log_drive = ldrive; 1281 1282 /* 1283 * Dispatch the request asynchronously if we can't sleep waiting 1284 * for it to complete. 1285 */ 1286 if (async) { 1287 cr->cr_complete = ciss_accept_media_complete; 1288 if ((error = ciss_start(cr)) != 0) 1289 goto out; 1290 return(0); 1291 } else { 1292 /* 1293 * Submit the request and wait for it to complete. 1294 */ 1295 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1296 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1297 goto out; 1298 } 1299 } 1300 1301 /* 1302 * Call the completion callback manually. 1303 */ 1304 ciss_accept_media_complete(cr); 1305 return(0); 1306 1307 out: 1308 if (cr != NULL) 1309 ciss_release_request(cr); 1310 return(error); 1311 } 1312 1313 static void 1314 ciss_accept_media_complete(struct ciss_request *cr) 1315 { 1316 int command_status; 1317 1318 /* 1319 * Check response. 1320 */ 1321 ciss_report_request(cr, &command_status, NULL); 1322 switch(command_status) { 1323 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1324 /* we should get a logical drive status changed event here */ 1325 break; 1326 default: 1327 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1328 ciss_name_command_status(command_status)); 1329 break; 1330 } 1331 ciss_release_request(cr); 1332 } 1333 1334 /************************************************************************ 1335 * Release adapter resources. 1336 */ 1337 static void 1338 ciss_free(struct ciss_softc *sc) 1339 { 1340 debug_called(1); 1341 1342 /* we're going away */ 1343 sc->ciss_flags |= CISS_FLAG_ABORTING; 1344 1345 /* terminate the periodic heartbeat routine */ 1346 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1347 1348 /* cancel the Event Notify chain */ 1349 ciss_notify_abort(sc); 1350 1351 /* free the controller data */ 1352 if (sc->ciss_id != NULL) 1353 free(sc->ciss_id, CISS_MALLOC_CLASS); 1354 1355 /* release I/O resources */ 1356 if (sc->ciss_regs_resource != NULL) 1357 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1358 sc->ciss_regs_rid, sc->ciss_regs_resource); 1359 if (sc->ciss_cfg_resource != NULL) 1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1361 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1362 if (sc->ciss_intr != NULL) 1363 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1364 if (sc->ciss_irq_resource != NULL) 1365 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1366 sc->ciss_irq_rid, sc->ciss_irq_resource); 1367 1368 /* destroy DMA tags */ 1369 if (sc->ciss_parent_dmat) 1370 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1371 if (sc->ciss_buffer_dmat) 1372 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1373 1374 /* destroy command memory and DMA tag */ 1375 if (sc->ciss_command != NULL) { 1376 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1377 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1378 } 1379 if (sc->ciss_buffer_dmat) 1380 bus_dma_tag_destroy(sc->ciss_command_dmat); 1381 1382 /* disconnect from CAM */ 1383 if (sc->ciss_cam_sim) { 1384 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1385 cam_sim_free(sc->ciss_cam_sim, 0); 1386 } 1387 if (sc->ciss_cam_devq) 1388 cam_simq_free(sc->ciss_cam_devq); 1389 /* XXX what about ciss_cam_path? */ 1390 } 1391 1392 /************************************************************************ 1393 * Give a command to the adapter. 1394 * 1395 * Note that this uses the simple transport layer directly. If we 1396 * want to add support for other layers, we'll need a switch of some 1397 * sort. 1398 * 1399 * Note that the simple transport layer has no way of refusing a 1400 * command; we only have as many request structures as the adapter 1401 * supports commands, so we don't have to check (this presumes that 1402 * the adapter can handle commands as fast as we throw them at it). 1403 */ 1404 static int 1405 ciss_start(struct ciss_request *cr) 1406 { 1407 struct ciss_command *cc; /* XXX debugging only */ 1408 int error; 1409 1410 cc = CISS_FIND_COMMAND(cr); 1411 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1412 1413 /* 1414 * Map the request's data. 1415 */ 1416 if ((error = ciss_map_request(cr))) 1417 return(error); 1418 1419 #if 0 1420 ciss_print_request(cr); 1421 #endif 1422 1423 /* 1424 * Post the command to the adapter. 1425 */ 1426 ciss_enqueue_busy(cr); 1427 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1428 1429 return(0); 1430 } 1431 1432 /************************************************************************ 1433 * Fetch completed request(s) from the adapter, queue them for 1434 * completion handling. 1435 * 1436 * Note that this uses the simple transport layer directly. If we 1437 * want to add support for other layers, we'll need a switch of some 1438 * sort. 1439 * 1440 * Note that the simple transport mechanism does not require any 1441 * reentrancy protection; the OPQ read is atomic. If there is a 1442 * chance of a race with something else that might move the request 1443 * off the busy list, then we will have to lock against that 1444 * (eg. timeouts, etc.) 1445 */ 1446 static void 1447 ciss_done(struct ciss_softc *sc) 1448 { 1449 struct ciss_request *cr; 1450 struct ciss_command *cc; 1451 u_int32_t tag, index; 1452 int complete; 1453 1454 debug_called(3); 1455 1456 /* 1457 * Loop quickly taking requests from the adapter and moving them 1458 * from the busy queue to the completed queue. 1459 */ 1460 complete = 0; 1461 for (;;) { 1462 1463 /* see if the OPQ contains anything */ 1464 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1465 break; 1466 1467 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1468 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1469 break; 1470 index = tag >> 2; 1471 debug(2, "completed command %d%s", index, 1472 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1473 if (index >= sc->ciss_max_requests) { 1474 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1475 continue; 1476 } 1477 cr = &(sc->ciss_request[index]); 1478 cc = CISS_FIND_COMMAND(cr); 1479 cc->header.host_tag = tag; /* not updated by adapter */ 1480 if (ciss_remove_busy(cr)) { 1481 /* assume this is garbage out of the adapter */ 1482 ciss_printf(sc, "completed nonbusy request %d\n", index); 1483 } else { 1484 ciss_enqueue_complete(cr); 1485 } 1486 complete = 1; 1487 } 1488 1489 /* 1490 * Invoke completion processing. If we can defer this out of 1491 * interrupt context, that'd be good. 1492 */ 1493 if (complete) 1494 ciss_complete(sc); 1495 } 1496 1497 /************************************************************************ 1498 * Take an interrupt from the adapter. 1499 */ 1500 static void 1501 ciss_intr(void *arg) 1502 { 1503 struct ciss_softc *sc = (struct ciss_softc *)arg; 1504 1505 /* 1506 * The only interrupt we recognise indicates that there are 1507 * entries in the outbound post queue. 1508 */ 1509 ciss_done(sc); 1510 } 1511 1512 /************************************************************************ 1513 * Process completed requests. 1514 * 1515 * Requests can be completed in three fashions: 1516 * 1517 * - by invoking a callback function (cr_complete is non-null) 1518 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1519 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1520 */ 1521 static void 1522 ciss_complete(struct ciss_softc *sc) 1523 { 1524 struct ciss_request *cr; 1525 1526 debug_called(2); 1527 1528 /* 1529 * Loop taking requests off the completed queue and performing 1530 * completion processing on them. 1531 */ 1532 for (;;) { 1533 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1534 break; 1535 ciss_unmap_request(cr); 1536 1537 /* 1538 * If the request has a callback, invoke it. 1539 */ 1540 if (cr->cr_complete != NULL) { 1541 cr->cr_complete(cr); 1542 continue; 1543 } 1544 1545 /* 1546 * If someone is sleeping on this request, wake them up. 1547 */ 1548 if (cr->cr_flags & CISS_REQ_SLEEP) { 1549 cr->cr_flags &= ~CISS_REQ_SLEEP; 1550 wakeup(cr); 1551 continue; 1552 } 1553 1554 /* 1555 * If someone is polling this request for completion, signal. 1556 */ 1557 if (cr->cr_flags & CISS_REQ_POLL) { 1558 cr->cr_flags &= ~CISS_REQ_POLL; 1559 continue; 1560 } 1561 1562 /* 1563 * Give up and throw the request back on the free queue. This 1564 * should never happen; resources will probably be lost. 1565 */ 1566 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1567 ciss_enqueue_free(cr); 1568 } 1569 } 1570 1571 /************************************************************************ 1572 * Report on the completion status of a request, and pass back SCSI 1573 * and command status values. 1574 */ 1575 static int 1576 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1577 { 1578 struct ciss_command *cc; 1579 struct ciss_error_info *ce; 1580 1581 debug_called(2); 1582 1583 cc = CISS_FIND_COMMAND(cr); 1584 ce = (struct ciss_error_info *)&(cc->sg[0]); 1585 1586 /* 1587 * We don't consider data under/overrun an error for the Report 1588 * Logical/Physical LUNs commands. 1589 */ 1590 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1591 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1592 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1593 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1594 debug(2, "ignoring irrelevant under/overrun error"); 1595 } 1596 1597 /* 1598 * Check the command's error bit, if clear, there's no status and 1599 * everything is OK. 1600 */ 1601 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1602 if (scsi_status != NULL) 1603 *scsi_status = SCSI_STATUS_OK; 1604 if (command_status != NULL) 1605 *command_status = CISS_CMD_STATUS_SUCCESS; 1606 return(0); 1607 } else { 1608 if (command_status != NULL) 1609 *command_status = ce->command_status; 1610 if (scsi_status != NULL) { 1611 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1612 *scsi_status = ce->scsi_status; 1613 } else { 1614 *scsi_status = -1; 1615 } 1616 } 1617 if (bootverbose) 1618 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1619 ce->command_status, ciss_name_command_status(ce->command_status), 1620 ce->scsi_status); 1621 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1622 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1623 ce->additional_error_info.invalid_command.offense_size, 1624 ce->additional_error_info.invalid_command.offense_offset, 1625 ce->additional_error_info.invalid_command.offense_value); 1626 } 1627 } 1628 return(1); 1629 } 1630 1631 /************************************************************************ 1632 * Issue a request and don't return until it's completed. 1633 * 1634 * Depending on adapter status, we may poll or sleep waiting for 1635 * completion. 1636 */ 1637 static int 1638 ciss_synch_request(struct ciss_request *cr, int timeout) 1639 { 1640 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1641 return(ciss_wait_request(cr, timeout)); 1642 } else { 1643 return(ciss_poll_request(cr, timeout)); 1644 } 1645 } 1646 1647 /************************************************************************ 1648 * Issue a request and poll for completion. 1649 * 1650 * Timeout in milliseconds. 1651 */ 1652 static int 1653 ciss_poll_request(struct ciss_request *cr, int timeout) 1654 { 1655 int error; 1656 1657 debug_called(2); 1658 1659 cr->cr_flags |= CISS_REQ_POLL; 1660 if ((error = ciss_start(cr)) != 0) 1661 return(error); 1662 1663 do { 1664 ciss_done(cr->cr_sc); 1665 if (!(cr->cr_flags & CISS_REQ_POLL)) 1666 return(0); 1667 DELAY(1000); 1668 } while (timeout-- >= 0); 1669 return(EWOULDBLOCK); 1670 } 1671 1672 /************************************************************************ 1673 * Issue a request and sleep waiting for completion. 1674 * 1675 * Timeout in milliseconds. Note that a spurious wakeup will reset 1676 * the timeout. 1677 */ 1678 static int 1679 ciss_wait_request(struct ciss_request *cr, int timeout) 1680 { 1681 int s, error; 1682 1683 debug_called(2); 1684 1685 cr->cr_flags |= CISS_REQ_SLEEP; 1686 if ((error = ciss_start(cr)) != 0) 1687 return(error); 1688 1689 s = splcam(); 1690 while (cr->cr_flags & CISS_REQ_SLEEP) { 1691 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1692 /* 1693 * On wakeup or interruption due to restartable activity, go 1694 * back and check to see if we're done. 1695 */ 1696 if ((error == 0) || (error == ERESTART)) { 1697 error = 0; 1698 continue; 1699 } 1700 /* 1701 * Timeout, interrupted system call, etc. 1702 */ 1703 break; 1704 } 1705 splx(s); 1706 return(error); 1707 } 1708 1709 #if 0 1710 /************************************************************************ 1711 * Abort a request. Note that a potential exists here to race the 1712 * request being completed; the caller must deal with this. 1713 */ 1714 static int 1715 ciss_abort_request(struct ciss_request *ar) 1716 { 1717 struct ciss_request *cr; 1718 struct ciss_command *cc; 1719 struct ciss_message_cdb *cmc; 1720 int error; 1721 1722 debug_called(1); 1723 1724 /* get a request */ 1725 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1726 return(error); 1727 1728 /* build the abort command */ 1729 cc = CISS_FIND_COMMAND(cr); 1730 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1731 cc->header.address.physical.target = 0; 1732 cc->header.address.physical.bus = 0; 1733 cc->cdb.cdb_length = sizeof(*cmc); 1734 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1735 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1736 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1737 cc->cdb.timeout = 30; 1738 1739 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1740 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1741 cmc->type = CISS_MESSAGE_ABORT_TASK; 1742 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1743 1744 /* 1745 * Send the request and wait for a response. If we believe we 1746 * aborted the request OK, clear the flag that indicates it's 1747 * running. 1748 */ 1749 error = ciss_synch_request(cr, 35 * 1000); 1750 if (!error) 1751 error = ciss_report_request(cr, NULL, NULL); 1752 ciss_release_request(cr); 1753 1754 return(error); 1755 } 1756 #endif 1757 1758 1759 /************************************************************************ 1760 * Fetch and initialise a request 1761 */ 1762 static int 1763 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1764 { 1765 struct ciss_request *cr; 1766 1767 debug_called(2); 1768 1769 /* 1770 * Get a request and clean it up. 1771 */ 1772 if ((cr = ciss_dequeue_free(sc)) == NULL) 1773 return(ENOMEM); 1774 1775 cr->cr_data = NULL; 1776 cr->cr_flags = 0; 1777 cr->cr_complete = NULL; 1778 1779 ciss_preen_command(cr); 1780 *crp = cr; 1781 return(0); 1782 } 1783 1784 static void 1785 ciss_preen_command(struct ciss_request *cr) 1786 { 1787 struct ciss_command *cc; 1788 u_int32_t cmdphys; 1789 1790 /* 1791 * Clean up the command structure. 1792 * 1793 * Note that we set up the error_info structure here, since the 1794 * length can be overwritten by any command. 1795 */ 1796 cc = CISS_FIND_COMMAND(cr); 1797 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1798 cc->header.sg_total = 0; 1799 cc->header.host_tag = cr->cr_tag << 2; 1800 cc->header.host_tag_zeroes = 0; 1801 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1802 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1803 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1804 1805 } 1806 1807 /************************************************************************ 1808 * Release a request to the free list. 1809 */ 1810 static void 1811 ciss_release_request(struct ciss_request *cr) 1812 { 1813 struct ciss_softc *sc; 1814 1815 debug_called(2); 1816 1817 sc = cr->cr_sc; 1818 1819 /* release the request to the free queue */ 1820 ciss_requeue_free(cr); 1821 } 1822 1823 /************************************************************************ 1824 * Allocate a request that will be used to send a BMIC command. Do some 1825 * of the common setup here to avoid duplicating it everywhere else. 1826 */ 1827 static int 1828 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1829 int opcode, void **bufp, size_t bufsize) 1830 { 1831 struct ciss_request *cr; 1832 struct ciss_command *cc; 1833 struct ciss_bmic_cdb *cbc; 1834 void *buf; 1835 int error; 1836 int dataout; 1837 1838 debug_called(2); 1839 1840 cr = NULL; 1841 buf = NULL; 1842 1843 /* 1844 * Get a request. 1845 */ 1846 if ((error = ciss_get_request(sc, &cr)) != 0) 1847 goto out; 1848 1849 /* 1850 * Allocate data storage if requested, determine the data direction. 1851 */ 1852 dataout = 0; 1853 if ((bufsize > 0) && (bufp != NULL)) { 1854 if (*bufp == NULL) { 1855 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1856 error = ENOMEM; 1857 goto out; 1858 } 1859 } else { 1860 buf = *bufp; 1861 dataout = 1; /* we are given a buffer, so we are writing */ 1862 } 1863 } 1864 1865 /* 1866 * Build a CISS BMIC command to get the logical drive ID. 1867 */ 1868 cr->cr_data = buf; 1869 cr->cr_length = bufsize; 1870 if (!dataout) 1871 cr->cr_flags = CISS_REQ_DATAIN; 1872 1873 cc = CISS_FIND_COMMAND(cr); 1874 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1875 cc->header.address.physical.bus = 0; 1876 cc->header.address.physical.target = 0; 1877 cc->cdb.cdb_length = sizeof(*cbc); 1878 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1879 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1880 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1881 cc->cdb.timeout = 0; 1882 1883 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1884 bzero(cbc, sizeof(*cbc)); 1885 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1886 cbc->bmic_opcode = opcode; 1887 cbc->size = htons((u_int16_t)bufsize); 1888 1889 out: 1890 if (error) { 1891 if (cr != NULL) 1892 ciss_release_request(cr); 1893 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1894 free(buf, CISS_MALLOC_CLASS); 1895 } else { 1896 *crp = cr; 1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1898 *bufp = buf; 1899 } 1900 return(error); 1901 } 1902 1903 /************************************************************************ 1904 * Handle a command passed in from userspace. 1905 */ 1906 static int 1907 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1908 { 1909 struct ciss_request *cr; 1910 struct ciss_command *cc; 1911 struct ciss_error_info *ce; 1912 int error; 1913 1914 debug_called(1); 1915 1916 cr = NULL; 1917 1918 /* 1919 * Get a request. 1920 */ 1921 if ((error = ciss_get_request(sc, &cr)) != 0) 1922 goto out; 1923 cc = CISS_FIND_COMMAND(cr); 1924 1925 /* 1926 * Allocate an in-kernel databuffer if required, copy in user data. 1927 */ 1928 cr->cr_length = ioc->buf_size; 1929 if (ioc->buf_size > 0) { 1930 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1931 error = ENOMEM; 1932 goto out; 1933 } 1934 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1935 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1936 goto out; 1937 } 1938 } 1939 1940 /* 1941 * Build the request based on the user command. 1942 */ 1943 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1944 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1945 1946 /* XXX anything else to populate here? */ 1947 1948 /* 1949 * Run the command. 1950 */ 1951 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1952 debug(0, "request failed - %d", error); 1953 goto out; 1954 } 1955 1956 /* 1957 * Copy the results back to the user. 1958 */ 1959 ce = (struct ciss_error_info *)&(cc->sg[0]); 1960 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1961 if ((ioc->buf_size > 0) && 1962 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1963 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1964 goto out; 1965 } 1966 1967 /* done OK */ 1968 error = 0; 1969 1970 out: 1971 if ((cr != NULL) && (cr->cr_data != NULL)) 1972 free(cr->cr_data, CISS_MALLOC_CLASS); 1973 if (cr != NULL) 1974 ciss_release_request(cr); 1975 return(error); 1976 } 1977 1978 /************************************************************************ 1979 * Map a request into bus-visible space, initialise the scatter/gather 1980 * list. 1981 */ 1982 static int 1983 ciss_map_request(struct ciss_request *cr) 1984 { 1985 struct ciss_softc *sc; 1986 1987 debug_called(2); 1988 1989 sc = cr->cr_sc; 1990 1991 /* check that mapping is necessary */ 1992 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1993 return(0); 1994 1995 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1996 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 1997 1998 if (cr->cr_flags & CISS_REQ_DATAIN) 1999 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2000 if (cr->cr_flags & CISS_REQ_DATAOUT) 2001 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2002 2003 cr->cr_flags |= CISS_REQ_MAPPED; 2004 return(0); 2005 } 2006 2007 static void 2008 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2009 { 2010 struct ciss_command *cc; 2011 int i; 2012 2013 debug_called(2); 2014 2015 cc = (struct ciss_command *)arg; 2016 for (i = 0; i < nseg; i++) { 2017 cc->sg[i].address = segs[i].ds_addr; 2018 cc->sg[i].length = segs[i].ds_len; 2019 cc->sg[i].extension = 0; 2020 } 2021 /* we leave the s/g table entirely within the command */ 2022 cc->header.sg_in_list = nseg; 2023 cc->header.sg_total = nseg; 2024 } 2025 2026 /************************************************************************ 2027 * Unmap a request from bus-visible space. 2028 */ 2029 static void 2030 ciss_unmap_request(struct ciss_request *cr) 2031 { 2032 struct ciss_softc *sc; 2033 2034 debug_called(2); 2035 2036 sc = cr->cr_sc; 2037 2038 /* check that unmapping is necessary */ 2039 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2040 return; 2041 2042 if (cr->cr_flags & CISS_REQ_DATAIN) 2043 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2044 if (cr->cr_flags & CISS_REQ_DATAOUT) 2045 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2046 2047 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2048 cr->cr_flags &= ~CISS_REQ_MAPPED; 2049 } 2050 2051 /************************************************************************ 2052 * Attach the driver to CAM. 2053 * 2054 * We put all the logical drives on a single SCSI bus. 2055 */ 2056 static int 2057 ciss_cam_init(struct ciss_softc *sc) 2058 { 2059 2060 debug_called(1); 2061 2062 /* 2063 * Allocate a devq. We can reuse this for the masked physical 2064 * devices if we decide to export these as well. 2065 */ 2066 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2067 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2068 return(ENOMEM); 2069 } 2070 2071 /* 2072 * Create a SIM. 2073 */ 2074 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2075 device_get_unit(sc->ciss_dev), 2076 sc->ciss_max_requests - 2, 2077 1, 2078 sc->ciss_cam_devq)) == NULL) { 2079 ciss_printf(sc, "can't allocate CAM SIM\n"); 2080 return(ENOMEM); 2081 } 2082 2083 /* 2084 * Register bus 0 (the 'logical drives' bus) with this SIM. 2085 */ 2086 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2087 ciss_printf(sc, "can't register SCSI bus 0\n"); 2088 return(ENXIO); 2089 } 2090 2091 /* 2092 * Initiate a rescan of the bus. 2093 */ 2094 ciss_cam_rescan_all(sc); 2095 2096 return(0); 2097 } 2098 2099 /************************************************************************ 2100 * Initiate a rescan of the 'logical devices' SIM 2101 */ 2102 static void 2103 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2104 { 2105 union ccb *ccb; 2106 2107 debug_called(1); 2108 2109 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2110 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2111 return; 2112 } 2113 2114 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2115 != CAM_REQ_CMP) { 2116 ciss_printf(sc, "rescan failed (can't create path)\n"); 2117 return; 2118 } 2119 2120 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2121 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2122 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2123 ccb->crcn.flags = CAM_FLAG_NONE; 2124 xpt_action(ccb); 2125 2126 /* scan is now in progress */ 2127 } 2128 2129 static void 2130 ciss_cam_rescan_all(struct ciss_softc *sc) 2131 { 2132 return(ciss_cam_rescan_target(sc, 0)); 2133 } 2134 2135 static void 2136 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2137 { 2138 xpt_free_path(ccb->ccb_h.path); 2139 free(ccb, M_TEMP); 2140 } 2141 2142 /************************************************************************ 2143 * Handle requests coming from CAM 2144 */ 2145 static void 2146 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2147 { 2148 struct ciss_softc *sc; 2149 struct ccb_scsiio *csio; 2150 int target; 2151 2152 sc = cam_sim_softc(sim); 2153 csio = (struct ccb_scsiio *)&ccb->csio; 2154 target = csio->ccb_h.target_id; 2155 2156 switch (ccb->ccb_h.func_code) { 2157 2158 /* perform SCSI I/O */ 2159 case XPT_SCSI_IO: 2160 if (!ciss_cam_action_io(sim, csio)) 2161 return; 2162 break; 2163 2164 /* perform geometry calculations */ 2165 case XPT_CALC_GEOMETRY: 2166 { 2167 struct ccb_calc_geometry *ccg = &ccb->ccg; 2168 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2169 2170 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2171 2172 /* 2173 * Use the cached geometry settings unless the fault tolerance 2174 * is invalid. 2175 */ 2176 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2177 u_int32_t secs_per_cylinder; 2178 2179 ccg->heads = 255; 2180 ccg->secs_per_track = 32; 2181 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2182 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2183 } else { 2184 ccg->heads = ld->cl_geometry.heads; 2185 ccg->secs_per_track = ld->cl_geometry.sectors; 2186 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2187 } 2188 ccb->ccb_h.status = CAM_REQ_CMP; 2189 break; 2190 } 2191 2192 /* handle path attribute inquiry */ 2193 case XPT_PATH_INQ: 2194 { 2195 struct ccb_pathinq *cpi = &ccb->cpi; 2196 2197 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2198 2199 cpi->version_num = 1; 2200 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2201 cpi->target_sprt = 0; 2202 cpi->hba_misc = 0; 2203 cpi->max_target = CISS_MAX_LOGICAL; 2204 cpi->max_lun = 0; /* 'logical drive' channel only */ 2205 cpi->initiator_id = CISS_MAX_LOGICAL; 2206 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2207 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2208 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2209 cpi->unit_number = cam_sim_unit(sim); 2210 cpi->bus_id = cam_sim_bus(sim); 2211 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2212 ccb->ccb_h.status = CAM_REQ_CMP; 2213 break; 2214 } 2215 2216 case XPT_GET_TRAN_SETTINGS: 2217 { 2218 struct ccb_trans_settings *cts = &ccb->cts; 2219 int bus, target; 2220 2221 bus = cam_sim_bus(sim); 2222 target = cts->ccb_h.target_id; 2223 2224 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2225 cts->valid = 0; 2226 2227 /* disconnect always OK */ 2228 cts->flags |= CCB_TRANS_DISC_ENB; 2229 cts->valid |= CCB_TRANS_DISC_VALID; 2230 2231 cts->ccb_h.status = CAM_REQ_CMP; 2232 break; 2233 } 2234 2235 default: /* we can't do this */ 2236 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2237 ccb->ccb_h.status = CAM_REQ_INVALID; 2238 break; 2239 } 2240 2241 xpt_done(ccb); 2242 } 2243 2244 /************************************************************************ 2245 * Handle a CAM SCSI I/O request. 2246 */ 2247 static int 2248 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2249 { 2250 struct ciss_softc *sc; 2251 int bus, target; 2252 struct ciss_request *cr; 2253 struct ciss_command *cc; 2254 int error; 2255 2256 sc = cam_sim_softc(sim); 2257 bus = cam_sim_bus(sim); 2258 target = csio->ccb_h.target_id; 2259 2260 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2261 2262 /* check for I/O attempt to nonexistent device */ 2263 if ((bus != 0) || 2264 (target > CISS_MAX_LOGICAL) || 2265 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2266 debug(3, " device does not exist"); 2267 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2268 } 2269 2270 /* firmware does not support commands > 10 bytes */ 2271 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2272 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2273 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2274 } 2275 2276 /* check that the CDB pointer is not to a physical address */ 2277 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2278 debug(3, " CDB pointer is to physical address"); 2279 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2280 } 2281 2282 /* if there is data transfer, it must be to/from a virtual address */ 2283 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2284 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2285 debug(3, " data pointer is to physical address"); 2286 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2287 } 2288 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2289 debug(3, " data has premature s/g setup"); 2290 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2291 } 2292 } 2293 2294 /* abandon aborted ccbs or those that have failed validation */ 2295 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2296 debug(3, "abandoning CCB due to abort/validation failure"); 2297 return(EINVAL); 2298 } 2299 2300 /* handle emulation of some SCSI commands ourself */ 2301 if (ciss_cam_emulate(sc, csio)) 2302 return(0); 2303 2304 /* 2305 * Get a request to manage this command. If we can't, return the 2306 * ccb, freeze the queue and flag so that we unfreeze it when a 2307 * request completes. 2308 */ 2309 if ((error = ciss_get_request(sc, &cr)) != 0) { 2310 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2311 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2312 return(error); 2313 } 2314 2315 /* 2316 * Build the command. 2317 */ 2318 cc = CISS_FIND_COMMAND(cr); 2319 cr->cr_data = csio->data_ptr; 2320 cr->cr_length = csio->dxfer_len; 2321 cr->cr_complete = ciss_cam_complete; 2322 cr->cr_private = csio; 2323 2324 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2325 cc->header.address.logical.lun = target; 2326 cc->cdb.cdb_length = csio->cdb_len; 2327 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2328 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2329 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2330 cr->cr_flags = CISS_REQ_DATAOUT; 2331 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2332 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2333 cr->cr_flags = CISS_REQ_DATAIN; 2334 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2335 } else { 2336 cr->cr_flags = 0; 2337 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2338 } 2339 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2340 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2341 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2342 } else { 2343 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2344 } 2345 2346 /* 2347 * Submit the request to the adapter. 2348 * 2349 * Note that this may fail if we're unable to map the request (and 2350 * if we ever learn a transport layer other than simple, may fail 2351 * if the adapter rejects the command). 2352 */ 2353 if ((error = ciss_start(cr)) != 0) { 2354 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2355 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2356 ciss_release_request(cr); 2357 return(error); 2358 } 2359 2360 return(0); 2361 } 2362 2363 /************************************************************************ 2364 * Emulate SCSI commands the adapter doesn't handle as we might like. 2365 */ 2366 static int 2367 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2368 { 2369 int target; 2370 u_int8_t opcode; 2371 2372 2373 target = csio->ccb_h.target_id; 2374 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2375 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2376 2377 /* 2378 * Handle requests for volumes that don't exist. A selection timeout 2379 * is slightly better than an illegal request. Other errors might be 2380 * better. 2381 */ 2382 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2383 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2384 xpt_done((union ccb *)csio); 2385 return(1); 2386 } 2387 2388 /* 2389 * Handle requests for volumes that exist but are offline. 2390 * 2391 * I/O operations should fail, everything else should work. 2392 */ 2393 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2394 switch(opcode) { 2395 case READ_6: 2396 case READ_10: 2397 case READ_12: 2398 case WRITE_6: 2399 case WRITE_10: 2400 case WRITE_12: 2401 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2402 xpt_done((union ccb *)csio); 2403 return(1); 2404 } 2405 } 2406 2407 2408 /* if we have to fake Synchronise Cache */ 2409 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2410 2411 /* 2412 * If this is a Synchronise Cache command, typically issued when 2413 * a device is closed, flush the adapter and complete now. 2414 */ 2415 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2416 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2417 ciss_flush_adapter(sc); 2418 csio->ccb_h.status = CAM_REQ_CMP; 2419 xpt_done((union ccb *)csio); 2420 return(1); 2421 } 2422 } 2423 2424 return(0); 2425 } 2426 2427 /************************************************************************ 2428 * Check for possibly-completed commands. 2429 */ 2430 static void 2431 ciss_cam_poll(struct cam_sim *sim) 2432 { 2433 struct ciss_softc *sc = cam_sim_softc(sim); 2434 2435 debug_called(2); 2436 2437 ciss_done(sc); 2438 } 2439 2440 /************************************************************************ 2441 * Handle completion of a command - pass results back through the CCB 2442 */ 2443 static void 2444 ciss_cam_complete(struct ciss_request *cr) 2445 { 2446 struct ciss_softc *sc; 2447 struct ciss_command *cc; 2448 struct ciss_error_info *ce; 2449 struct ccb_scsiio *csio; 2450 int scsi_status; 2451 int command_status; 2452 2453 debug_called(2); 2454 2455 sc = cr->cr_sc; 2456 cc = CISS_FIND_COMMAND(cr); 2457 ce = (struct ciss_error_info *)&(cc->sg[0]); 2458 csio = (struct ccb_scsiio *)cr->cr_private; 2459 2460 /* 2461 * Extract status values from request. 2462 */ 2463 ciss_report_request(cr, &command_status, &scsi_status); 2464 csio->scsi_status = scsi_status; 2465 2466 /* 2467 * Handle specific SCSI status values. 2468 */ 2469 switch(scsi_status) { 2470 /* no status due to adapter error */ 2471 case -1: 2472 debug(0, "adapter error"); 2473 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2474 break; 2475 2476 /* no status due to command completed OK */ 2477 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2478 debug(2, "SCSI_STATUS_OK"); 2479 csio->ccb_h.status = CAM_REQ_CMP; 2480 break; 2481 2482 /* check condition, sense data included */ 2483 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2484 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2485 ce->sense_length, ce->residual_count); 2486 bzero(&csio->sense_data, SSD_FULL_SIZE); 2487 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2488 csio->sense_len = ce->sense_length; 2489 csio->resid = ce->residual_count; 2490 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2491 #ifdef CISS_DEBUG 2492 { 2493 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2494 debug(0, "sense key %x", sns->flags & SSD_KEY); 2495 } 2496 #endif 2497 break; 2498 2499 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2500 debug(0, "SCSI_STATUS_BUSY"); 2501 csio->ccb_h.status = CAM_SCSI_BUSY; 2502 break; 2503 2504 default: 2505 debug(0, "unknown status 0x%x", csio->scsi_status); 2506 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2507 break; 2508 } 2509 2510 /* handle post-command fixup */ 2511 ciss_cam_complete_fixup(sc, csio); 2512 2513 /* tell CAM we're ready for more commands */ 2514 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2515 2516 xpt_done((union ccb *)csio); 2517 ciss_release_request(cr); 2518 } 2519 2520 /******************************************************************************** 2521 * Fix up the result of some commands here. 2522 */ 2523 static void 2524 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2525 { 2526 struct scsi_inquiry_data *inq; 2527 struct ciss_ldrive *cl; 2528 int target; 2529 2530 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2531 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2532 2533 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2534 target = csio->ccb_h.target_id; 2535 cl = &sc->ciss_logical[target]; 2536 2537 padstr(inq->vendor, "COMPAQ", 8); 2538 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2539 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2540 } 2541 } 2542 2543 2544 /******************************************************************************** 2545 * Find a peripheral attached at (target) 2546 */ 2547 static struct cam_periph * 2548 ciss_find_periph(struct ciss_softc *sc, int target) 2549 { 2550 struct cam_periph *periph; 2551 struct cam_path *path; 2552 int status; 2553 2554 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2555 if (status == CAM_REQ_CMP) { 2556 periph = cam_periph_find(path, NULL); 2557 xpt_free_path(path); 2558 } else { 2559 periph = NULL; 2560 } 2561 return(periph); 2562 } 2563 2564 /******************************************************************************** 2565 * Name the device at (target) 2566 * 2567 * XXX is this strictly correct? 2568 */ 2569 int 2570 ciss_name_device(struct ciss_softc *sc, int target) 2571 { 2572 struct cam_periph *periph; 2573 2574 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2575 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2576 return(0); 2577 } 2578 sc->ciss_logical[target].cl_name[0] = 0; 2579 return(ENOENT); 2580 } 2581 2582 /************************************************************************ 2583 * Periodic status monitoring. 2584 */ 2585 static void 2586 ciss_periodic(void *arg) 2587 { 2588 struct ciss_softc *sc; 2589 2590 debug_called(1); 2591 2592 sc = (struct ciss_softc *)arg; 2593 2594 /* 2595 * Check the adapter heartbeat. 2596 */ 2597 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2598 sc->ciss_heart_attack++; 2599 debug(0, "adapter heart attack in progress 0x%x/%d", 2600 sc->ciss_heartbeat, sc->ciss_heart_attack); 2601 if (sc->ciss_heart_attack == 3) { 2602 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2603 /* XXX should reset adapter here */ 2604 } 2605 } else { 2606 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2607 sc->ciss_heart_attack = 0; 2608 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2609 } 2610 2611 /* 2612 * If the notify event request has died for some reason, or has 2613 * not started yet, restart it. 2614 */ 2615 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2616 debug(0, "(re)starting Event Notify chain"); 2617 ciss_notify_event(sc); 2618 } 2619 2620 /* 2621 * Reschedule. 2622 */ 2623 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2624 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2625 } 2626 2627 /************************************************************************ 2628 * Request a notification response from the adapter. 2629 * 2630 * If (cr) is NULL, this is the first request of the adapter, so 2631 * reset the adapter's message pointer and start with the oldest 2632 * message available. 2633 */ 2634 static void 2635 ciss_notify_event(struct ciss_softc *sc) 2636 { 2637 struct ciss_request *cr; 2638 struct ciss_command *cc; 2639 struct ciss_notify_cdb *cnc; 2640 int error; 2641 2642 debug_called(1); 2643 2644 cr = sc->ciss_periodic_notify; 2645 2646 /* get a request if we don't already have one */ 2647 if (cr == NULL) { 2648 if ((error = ciss_get_request(sc, &cr)) != 0) { 2649 debug(0, "can't get notify event request"); 2650 goto out; 2651 } 2652 sc->ciss_periodic_notify = cr; 2653 cr->cr_complete = ciss_notify_complete; 2654 debug(1, "acquired request %d", cr->cr_tag); 2655 } 2656 2657 /* 2658 * Get a databuffer if we don't already have one, note that the 2659 * adapter command wants a larger buffer than the actual 2660 * structure. 2661 */ 2662 if (cr->cr_data == NULL) { 2663 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2664 debug(0, "can't get notify event request buffer"); 2665 error = ENOMEM; 2666 goto out; 2667 } 2668 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2669 } 2670 2671 /* re-setup the request's command (since we never release it) XXX overkill*/ 2672 ciss_preen_command(cr); 2673 2674 /* (re)build the notify event command */ 2675 cc = CISS_FIND_COMMAND(cr); 2676 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2677 cc->header.address.physical.bus = 0; 2678 cc->header.address.physical.target = 0; 2679 2680 cc->cdb.cdb_length = sizeof(*cnc); 2681 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2682 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2683 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2684 cc->cdb.timeout = 0; /* no timeout, we hope */ 2685 2686 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2687 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2688 cnc->opcode = CISS_OPCODE_READ; 2689 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2690 cnc->timeout = 0; /* no timeout, we hope */ 2691 cnc->synchronous = 0; 2692 cnc->ordered = 0; 2693 cnc->seek_to_oldest = 0; 2694 cnc->new_only = 0; 2695 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2696 2697 /* submit the request */ 2698 error = ciss_start(cr); 2699 2700 out: 2701 if (error) { 2702 if (cr != NULL) { 2703 if (cr->cr_data != NULL) 2704 free(cr->cr_data, CISS_MALLOC_CLASS); 2705 ciss_release_request(cr); 2706 } 2707 sc->ciss_periodic_notify = NULL; 2708 debug(0, "can't submit notify event request"); 2709 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2710 } else { 2711 debug(1, "notify event submitted"); 2712 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2713 } 2714 } 2715 2716 static void 2717 ciss_notify_complete(struct ciss_request *cr) 2718 { 2719 struct ciss_command *cc; 2720 struct ciss_notify *cn; 2721 struct ciss_softc *sc; 2722 int scsi_status; 2723 int command_status; 2724 2725 debug_called(1); 2726 2727 cc = CISS_FIND_COMMAND(cr); 2728 cn = (struct ciss_notify *)cr->cr_data; 2729 sc = cr->cr_sc; 2730 2731 /* 2732 * Report request results, decode status. 2733 */ 2734 ciss_report_request(cr, &command_status, &scsi_status); 2735 2736 /* 2737 * Abort the chain on a fatal error. 2738 * 2739 * XXX which of these are actually errors? 2740 */ 2741 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2742 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2743 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2744 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2745 ciss_name_command_status(command_status)); 2746 ciss_release_request(cr); 2747 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2748 return; 2749 } 2750 2751 /* 2752 * If the adapter gave us a text message, print it. 2753 */ 2754 if (cn->message[0] != 0) 2755 ciss_printf(sc, "*** %.80s\n", cn->message); 2756 2757 debug(0, "notify event class %d subclass %d detail %d", 2758 cn->class, cn->subclass, cn->detail); 2759 2760 /* 2761 * If there's room, save the event for a user-level tool. 2762 */ 2763 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2764 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2765 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2766 } 2767 2768 /* 2769 * Some events are directly of interest to us. 2770 */ 2771 switch (cn->class) { 2772 case CISS_NOTIFY_LOGICAL: 2773 ciss_notify_logical(sc, cn); 2774 break; 2775 case CISS_NOTIFY_PHYSICAL: 2776 ciss_notify_physical(sc, cn); 2777 break; 2778 } 2779 2780 /* 2781 * If the response indicates that the notifier has been aborted, 2782 * release the notifier command. 2783 */ 2784 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2785 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2786 (cn->detail == 1)) { 2787 debug(0, "notifier exiting"); 2788 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2789 ciss_release_request(cr); 2790 sc->ciss_periodic_notify = NULL; 2791 wakeup(&sc->ciss_periodic_notify); 2792 } 2793 2794 /* 2795 * Send a new notify event command, if we're not aborting. 2796 */ 2797 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2798 ciss_notify_event(sc); 2799 } 2800 } 2801 2802 /************************************************************************ 2803 * Abort the Notify Event chain. 2804 * 2805 * Note that we can't just abort the command in progress; we have to 2806 * explicitly issue an Abort Notify Event command in order for the 2807 * adapter to clean up correctly. 2808 * 2809 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2810 * the chain will not restart itself. 2811 */ 2812 static int 2813 ciss_notify_abort(struct ciss_softc *sc) 2814 { 2815 struct ciss_request *cr; 2816 struct ciss_command *cc; 2817 struct ciss_notify_cdb *cnc; 2818 int error, s, command_status, scsi_status; 2819 2820 debug_called(1); 2821 2822 cr = NULL; 2823 error = 0; 2824 2825 /* verify that there's an outstanding command */ 2826 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2827 goto out; 2828 2829 /* get a command to issue the abort with */ 2830 if ((error = ciss_get_request(sc, &cr))) 2831 goto out; 2832 2833 /* get a buffer for the result */ 2834 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2835 debug(0, "can't get notify event request buffer"); 2836 error = ENOMEM; 2837 goto out; 2838 } 2839 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2840 2841 /* build the CDB */ 2842 cc = CISS_FIND_COMMAND(cr); 2843 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2844 cc->header.address.physical.bus = 0; 2845 cc->header.address.physical.target = 0; 2846 cc->cdb.cdb_length = sizeof(*cnc); 2847 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2848 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2849 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2850 cc->cdb.timeout = 0; /* no timeout, we hope */ 2851 2852 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2853 bzero(cnc, sizeof(*cnc)); 2854 cnc->opcode = CISS_OPCODE_WRITE; 2855 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2856 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2857 2858 ciss_print_request(cr); 2859 2860 /* 2861 * Submit the request and wait for it to complete. 2862 */ 2863 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2864 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2865 goto out; 2866 } 2867 2868 /* 2869 * Check response. 2870 */ 2871 ciss_report_request(cr, &command_status, &scsi_status); 2872 switch(command_status) { 2873 case CISS_CMD_STATUS_SUCCESS: 2874 break; 2875 case CISS_CMD_STATUS_INVALID_COMMAND: 2876 /* 2877 * Some older adapters don't support the CISS version of this 2878 * command. Fall back to using the BMIC version. 2879 */ 2880 error = ciss_notify_abort_bmic(sc); 2881 if (error != 0) 2882 goto out; 2883 break; 2884 2885 case CISS_CMD_STATUS_TARGET_STATUS: 2886 /* 2887 * This can happen if the adapter thinks there wasn't an outstanding 2888 * Notify Event command but we did. We clean up here. 2889 */ 2890 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2891 if (sc->ciss_periodic_notify != NULL) 2892 ciss_release_request(sc->ciss_periodic_notify); 2893 error = 0; 2894 goto out; 2895 } 2896 /* FALLTHROUGH */ 2897 2898 default: 2899 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2900 ciss_name_command_status(command_status)); 2901 error = EIO; 2902 goto out; 2903 } 2904 2905 /* 2906 * Sleep waiting for the notifier command to complete. Note 2907 * that if it doesn't, we may end up in a bad situation, since 2908 * the adapter may deliver it later. Also note that the adapter 2909 * requires the Notify Event command to be cancelled in order to 2910 * maintain internal bookkeeping. 2911 */ 2912 s = splcam(); 2913 while (sc->ciss_periodic_notify != NULL) { 2914 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2915 if (error == EWOULDBLOCK) { 2916 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2917 break; 2918 } 2919 } 2920 splx(s); 2921 2922 out: 2923 /* release the cancel request */ 2924 if (cr != NULL) { 2925 if (cr->cr_data != NULL) 2926 free(cr->cr_data, CISS_MALLOC_CLASS); 2927 ciss_release_request(cr); 2928 } 2929 if (error == 0) 2930 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2931 return(error); 2932 } 2933 2934 /************************************************************************ 2935 * Abort the Notify Event chain using a BMIC command. 2936 */ 2937 static int 2938 ciss_notify_abort_bmic(struct ciss_softc *sc) 2939 { 2940 struct ciss_request *cr; 2941 int error, command_status; 2942 2943 debug_called(1); 2944 2945 cr = NULL; 2946 error = 0; 2947 2948 /* verify that there's an outstanding command */ 2949 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2950 goto out; 2951 2952 /* 2953 * Build a BMIC command to cancel the Notify on Event command. 2954 * 2955 * Note that we are sending a CISS opcode here. Odd. 2956 */ 2957 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2958 NULL, 0)) != 0) 2959 goto out; 2960 2961 /* 2962 * Submit the request and wait for it to complete. 2963 */ 2964 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2965 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2966 goto out; 2967 } 2968 2969 /* 2970 * Check response. 2971 */ 2972 ciss_report_request(cr, &command_status, NULL); 2973 switch(command_status) { 2974 case CISS_CMD_STATUS_SUCCESS: 2975 break; 2976 default: 2977 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2978 ciss_name_command_status(command_status)); 2979 error = EIO; 2980 goto out; 2981 } 2982 2983 out: 2984 if (cr != NULL) 2985 ciss_release_request(cr); 2986 return(error); 2987 } 2988 2989 /************************************************************************ 2990 * Handle a notify event relating to the status of a logical drive. 2991 * 2992 * XXX need to be able to defer some of these to properly handle 2993 * calling the "ID Physical drive" command, unless the 'extended' 2994 * drive IDs are always in BIG_MAP format. 2995 */ 2996 static void 2997 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 2998 { 2999 struct ciss_ldrive *ld; 3000 int ostatus; 3001 3002 debug_called(2); 3003 3004 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3005 3006 switch (cn->subclass) { 3007 case CISS_NOTIFY_LOGICAL_STATUS: 3008 switch (cn->detail) { 3009 case 0: 3010 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3011 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3012 cn->data.logical_status.logical_drive, ld->cl_name, 3013 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3014 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3015 cn->data.logical_status.spare_state, 3016 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3017 3018 /* 3019 * Update our idea of the drive's status. 3020 */ 3021 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3022 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3023 if (ld->cl_lstatus != NULL) 3024 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3025 3026 #if 0 3027 /* 3028 * Have CAM rescan the drive if its status has changed. 3029 */ 3030 if (ostatus != ld->cl_status) 3031 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3032 #endif 3033 3034 break; 3035 3036 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3037 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3038 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3039 cn->data.logical_status.logical_drive, ld->cl_name); 3040 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3041 break; 3042 3043 case 2: 3044 case 3: 3045 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3046 cn->data.rebuild_aborted.logical_drive, 3047 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3048 (cn->detail == 2) ? "read" : "write"); 3049 break; 3050 } 3051 break; 3052 3053 case CISS_NOTIFY_LOGICAL_ERROR: 3054 if (cn->detail == 0) { 3055 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3056 cn->data.io_error.logical_drive, 3057 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3058 cn->data.io_error.failure_bus, 3059 cn->data.io_error.failure_drive); 3060 /* XXX should we take the drive down at this point, or will we be told? */ 3061 } 3062 break; 3063 3064 case CISS_NOTIFY_LOGICAL_SURFACE: 3065 if (cn->detail == 0) 3066 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3067 cn->data.consistency_completed.logical_drive, 3068 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3069 break; 3070 } 3071 } 3072 3073 /************************************************************************ 3074 * Handle a notify event relating to the status of a physical drive. 3075 */ 3076 static void 3077 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3078 { 3079 3080 } 3081 3082 /************************************************************************ 3083 * Print a request. 3084 */ 3085 static void 3086 ciss_print_request(struct ciss_request *cr) 3087 { 3088 struct ciss_softc *sc; 3089 struct ciss_command *cc; 3090 int i; 3091 3092 sc = cr->cr_sc; 3093 cc = CISS_FIND_COMMAND(cr); 3094 3095 ciss_printf(sc, "REQUEST @ %p\n", cr); 3096 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3097 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3098 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3099 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3100 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3101 switch(cc->header.address.mode.mode) { 3102 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3103 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3104 ciss_printf(sc, " physical bus %d target %d\n", 3105 cc->header.address.physical.bus, cc->header.address.physical.target); 3106 break; 3107 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3108 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3109 break; 3110 } 3111 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3112 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3113 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3114 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3115 cc->cdb.cdb_length, 3116 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3117 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3118 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3119 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3120 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3121 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3122 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3123 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3124 3125 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3126 /* XXX print error info */ 3127 } else { 3128 /* since we don't use chained s/g, don't support it here */ 3129 for (i = 0; i < cc->header.sg_in_list; i++) { 3130 if ((i % 4) == 0) 3131 ciss_printf(sc, " "); 3132 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3133 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3134 printf("\n"); 3135 } 3136 } 3137 } 3138 3139 /************************************************************************ 3140 * Print information about the status of a logical drive. 3141 */ 3142 static void 3143 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3144 { 3145 int bus, target, i; 3146 3147 if (ld->cl_lstatus == NULL) { 3148 printf("does not exist\n"); 3149 return; 3150 } 3151 3152 /* print drive status */ 3153 switch(ld->cl_lstatus->status) { 3154 case CISS_LSTATUS_OK: 3155 printf("online\n"); 3156 break; 3157 case CISS_LSTATUS_INTERIM_RECOVERY: 3158 printf("in interim recovery mode\n"); 3159 break; 3160 case CISS_LSTATUS_READY_RECOVERY: 3161 printf("ready to begin recovery\n"); 3162 break; 3163 case CISS_LSTATUS_RECOVERING: 3164 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3165 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3166 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3167 bus, target, ld->cl_lstatus->blocks_to_recover); 3168 break; 3169 case CISS_LSTATUS_EXPANDING: 3170 printf("being expanded, %u blocks remaining\n", 3171 ld->cl_lstatus->blocks_to_recover); 3172 break; 3173 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3174 printf("queued for expansion\n"); 3175 break; 3176 case CISS_LSTATUS_FAILED: 3177 printf("queued for expansion\n"); 3178 break; 3179 case CISS_LSTATUS_WRONG_PDRIVE: 3180 printf("wrong physical drive inserted\n"); 3181 break; 3182 case CISS_LSTATUS_MISSING_PDRIVE: 3183 printf("missing a needed physical drive\n"); 3184 break; 3185 case CISS_LSTATUS_BECOMING_READY: 3186 printf("becoming ready\n"); 3187 break; 3188 } 3189 3190 /* print failed physical drives */ 3191 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3192 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3193 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3194 if (bus == -1) 3195 continue; 3196 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3197 ld->cl_lstatus->drive_failure_map[i]); 3198 } 3199 } 3200 3201 #ifdef CISS_DEBUG 3202 /************************************************************************ 3203 * Print information about the controller/driver. 3204 */ 3205 static void 3206 ciss_print_adapter(struct ciss_softc *sc) 3207 { 3208 int i; 3209 3210 ciss_printf(sc, "ADAPTER:\n"); 3211 for (i = 0; i < CISSQ_COUNT; i++) { 3212 ciss_printf(sc, "%s %d/%d\n", 3213 i == 0 ? "free" : 3214 i == 1 ? "busy" : "complete", 3215 sc->ciss_qstat[i].q_length, 3216 sc->ciss_qstat[i].q_max); 3217 } 3218 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3219 ciss_printf(sc, "notify_head/tail %d/%d\n", 3220 sc->ciss_notify_head, sc->ciss_notify_tail); 3221 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3222 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3223 3224 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3225 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3226 ciss_print_ldrive(sc, sc->ciss_logical + i); 3227 } 3228 3229 for (i = 1; i < sc->ciss_max_requests; i++) 3230 ciss_print_request(sc->ciss_request + i); 3231 3232 } 3233 3234 /* DDB hook */ 3235 void 3236 ciss_print0(void) 3237 { 3238 struct ciss_softc *sc; 3239 3240 sc = devclass_get_softc(devclass_find("ciss"), 0); 3241 if (sc == NULL) { 3242 printf("no ciss controllers\n"); 3243 } else { 3244 ciss_print_adapter(sc); 3245 } 3246 } 3247 #endif 3248 3249 /************************************************************************ 3250 * Return a name for a logical drive status value. 3251 */ 3252 static const char * 3253 ciss_name_ldrive_status(int status) 3254 { 3255 switch (status) { 3256 case CISS_LSTATUS_OK: 3257 return("OK"); 3258 case CISS_LSTATUS_FAILED: 3259 return("failed"); 3260 case CISS_LSTATUS_NOT_CONFIGURED: 3261 return("not configured"); 3262 case CISS_LSTATUS_INTERIM_RECOVERY: 3263 return("interim recovery"); 3264 case CISS_LSTATUS_READY_RECOVERY: 3265 return("ready for recovery"); 3266 case CISS_LSTATUS_RECOVERING: 3267 return("recovering"); 3268 case CISS_LSTATUS_WRONG_PDRIVE: 3269 return("wrong physical drive inserted"); 3270 case CISS_LSTATUS_MISSING_PDRIVE: 3271 return("missing physical drive"); 3272 case CISS_LSTATUS_EXPANDING: 3273 return("expanding"); 3274 case CISS_LSTATUS_BECOMING_READY: 3275 return("becoming ready"); 3276 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3277 return("queued for expansion"); 3278 } 3279 return("unknown status"); 3280 } 3281 3282 /************************************************************************ 3283 * Return an online/offline/nonexistent value for a logical drive 3284 * status value. 3285 */ 3286 static int 3287 ciss_decode_ldrive_status(int status) 3288 { 3289 switch(status) { 3290 case CISS_LSTATUS_NOT_CONFIGURED: 3291 return(CISS_LD_NONEXISTENT); 3292 3293 case CISS_LSTATUS_OK: 3294 case CISS_LSTATUS_INTERIM_RECOVERY: 3295 case CISS_LSTATUS_READY_RECOVERY: 3296 case CISS_LSTATUS_RECOVERING: 3297 case CISS_LSTATUS_EXPANDING: 3298 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3299 return(CISS_LD_ONLINE); 3300 3301 case CISS_LSTATUS_FAILED: 3302 case CISS_LSTATUS_WRONG_PDRIVE: 3303 case CISS_LSTATUS_MISSING_PDRIVE: 3304 case CISS_LSTATUS_BECOMING_READY: 3305 default: 3306 return(CISS_LD_OFFLINE); 3307 } 3308 } 3309 3310 3311 /************************************************************************ 3312 * Return a name for a logical drive's organisation. 3313 */ 3314 static const char * 3315 ciss_name_ldrive_org(int org) 3316 { 3317 switch(org) { 3318 case CISS_LDRIVE_RAID0: 3319 return("RAID 0"); 3320 case CISS_LDRIVE_RAID1: 3321 return("RAID 1"); 3322 case CISS_LDRIVE_RAID4: 3323 return("RAID 4"); 3324 case CISS_LDRIVE_RAID5: 3325 return("RAID 5"); 3326 } 3327 return("unkown"); 3328 } 3329 3330 /************************************************************************ 3331 * Return a name for a command status value. 3332 */ 3333 static const char * 3334 ciss_name_command_status(int status) 3335 { 3336 switch(status) { 3337 case CISS_CMD_STATUS_SUCCESS: 3338 return("success"); 3339 case CISS_CMD_STATUS_TARGET_STATUS: 3340 return("target status"); 3341 case CISS_CMD_STATUS_DATA_UNDERRUN: 3342 return("data underrun"); 3343 case CISS_CMD_STATUS_DATA_OVERRUN: 3344 return("data overrun"); 3345 case CISS_CMD_STATUS_INVALID_COMMAND: 3346 return("invalid command"); 3347 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3348 return("protocol error"); 3349 case CISS_CMD_STATUS_HARDWARE_ERROR: 3350 return("hardware error"); 3351 case CISS_CMD_STATUS_CONNECTION_LOST: 3352 return("connection lost"); 3353 case CISS_CMD_STATUS_ABORTED: 3354 return("aborted"); 3355 case CISS_CMD_STATUS_ABORT_FAILED: 3356 return("abort failed"); 3357 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3358 return("unsolicited abort"); 3359 case CISS_CMD_STATUS_TIMEOUT: 3360 return("timeout"); 3361 case CISS_CMD_STATUS_UNABORTABLE: 3362 return("unabortable"); 3363 } 3364 return("unknown status"); 3365 } 3366 3367 /************************************************************************ 3368 * Handle an open on the control device. 3369 */ 3370 static int 3371 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3372 { 3373 struct ciss_softc *sc; 3374 3375 debug_called(1); 3376 3377 sc = (struct ciss_softc *)dev->si_drv1; 3378 3379 /* we might want to veto if someone already has us open */ 3380 3381 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3382 return(0); 3383 } 3384 3385 /************************************************************************ 3386 * Handle the last close on the control device. 3387 */ 3388 static int 3389 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3390 { 3391 struct ciss_softc *sc; 3392 3393 debug_called(1); 3394 3395 sc = (struct ciss_softc *)dev->si_drv1; 3396 3397 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3398 return (0); 3399 } 3400 3401 /******************************************************************************** 3402 * Handle adapter-specific control operations. 3403 * 3404 * Note that the API here is compatible with the Linux driver, in order to 3405 * simplify the porting of Compaq's userland tools. 3406 */ 3407 static int 3408 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3409 { 3410 struct ciss_softc *sc; 3411 int error; 3412 3413 debug_called(1); 3414 3415 sc = (struct ciss_softc *)dev->si_drv1; 3416 error = 0; 3417 3418 switch(cmd) { 3419 case CCISS_GETPCIINFO: 3420 { 3421 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3422 3423 pis->bus = pci_get_bus(sc->ciss_dev); 3424 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3425 pis->board_id = pci_get_devid(sc->ciss_dev); 3426 3427 break; 3428 } 3429 3430 case CCISS_GETINTINFO: 3431 { 3432 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3433 3434 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3435 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3436 3437 break; 3438 } 3439 3440 case CCISS_SETINTINFO: 3441 { 3442 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3443 3444 if ((cis->delay == 0) && (cis->count == 0)) { 3445 error = EINVAL; 3446 break; 3447 } 3448 3449 /* 3450 * XXX apparently this is only safe if the controller is idle, 3451 * we should suspend it before doing this. 3452 */ 3453 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3454 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3455 3456 if (ciss_update_config(sc)) 3457 error = EIO; 3458 3459 /* XXX resume the controller here */ 3460 break; 3461 } 3462 3463 case CCISS_GETNODENAME: 3464 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3465 sizeof(NodeName_type)); 3466 break; 3467 3468 case CCISS_SETNODENAME: 3469 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3470 sizeof(NodeName_type)); 3471 if (ciss_update_config(sc)) 3472 error = EIO; 3473 break; 3474 3475 case CCISS_GETHEARTBEAT: 3476 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3477 break; 3478 3479 case CCISS_GETBUSTYPES: 3480 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3481 break; 3482 3483 case CCISS_GETFIRMVER: 3484 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3485 sizeof(FirmwareVer_type)); 3486 break; 3487 3488 case CCISS_GETDRIVERVER: 3489 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3490 break; 3491 3492 case CCISS_REVALIDVOLS: 3493 /* 3494 * This is a bit ugly; to do it "right" we really need 3495 * to find any disks that have changed, kick CAM off them, 3496 * then rescan only these disks. It'd be nice if they 3497 * a) told us which disk(s) they were going to play with, 3498 * and b) which ones had arrived. 8( 3499 */ 3500 break; 3501 3502 case CCISS_PASSTHRU: 3503 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3504 break; 3505 3506 default: 3507 debug(0, "unknown ioctl 0x%lx", cmd); 3508 3509 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3510 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3511 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3512 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3513 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3514 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3515 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3516 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3517 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3518 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3519 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3520 3521 error = ENOIOCTL; 3522 break; 3523 } 3524 3525 return(error); 3526 } 3527