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