1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/ciss/ciss.c,v 1.2.2.6 2003/02/18 22:27:41 ps Exp $ 27 * $DragonFly: src/sys/dev/raid/ciss/ciss.c,v 1.9 2004/06/21 15:39:30 dillon Exp $ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 */ 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/malloc.h> 75 #include <sys/kernel.h> 76 #include <sys/bus.h> 77 #include <sys/conf.h> 78 #include <sys/devicestat.h> 79 #include <sys/stat.h> 80 81 #include <bus/cam/cam.h> 82 #include <bus/cam/cam_ccb.h> 83 #include <bus/cam/cam_periph.h> 84 #include <bus/cam/cam_sim.h> 85 #include <bus/cam/cam_xpt_sim.h> 86 #include <bus/cam/scsi/scsi_all.h> 87 #include <bus/cam/scsi/scsi_message.h> 88 89 #include <machine/clock.h> 90 #include <machine/bus_memio.h> 91 #include <machine/bus.h> 92 #include <machine/endian.h> 93 #include <machine/resource.h> 94 #include <sys/rman.h> 95 96 #include <bus/pci/pcireg.h> 97 #include <bus/pci/pcivar.h> 98 99 #include "cissreg.h" 100 #include "cissvar.h" 101 #include "cissio.h" 102 103 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 104 105 /* pci interface */ 106 static int ciss_lookup(device_t dev); 107 static int ciss_probe(device_t dev); 108 static int ciss_attach(device_t dev); 109 static int ciss_detach(device_t dev); 110 static int ciss_shutdown(device_t dev); 111 112 /* (de)initialisation functions, control wrappers */ 113 static int ciss_init_pci(struct ciss_softc *sc); 114 static int ciss_wait_adapter(struct ciss_softc *sc); 115 static int ciss_flush_adapter(struct ciss_softc *sc); 116 static int ciss_init_requests(struct ciss_softc *sc); 117 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 118 int nseg, int error); 119 static int ciss_identify_adapter(struct ciss_softc *sc); 120 static int ciss_init_logical(struct ciss_softc *sc); 121 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 122 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 123 static int ciss_update_config(struct ciss_softc *sc); 124 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 125 static void ciss_accept_media_complete(struct ciss_request *cr); 126 static void ciss_free(struct ciss_softc *sc); 127 128 /* request submission/completion */ 129 static int ciss_start(struct ciss_request *cr); 130 static void ciss_done(struct ciss_softc *sc); 131 static void ciss_intr(void *arg); 132 static void ciss_complete(struct ciss_softc *sc); 133 static int ciss_report_request(struct ciss_request *cr, int *command_status, 134 int *scsi_status); 135 static int ciss_synch_request(struct ciss_request *cr, int timeout); 136 static int ciss_poll_request(struct ciss_request *cr, int timeout); 137 static int ciss_wait_request(struct ciss_request *cr, int timeout); 138 #if 0 139 static int ciss_abort_request(struct ciss_request *cr); 140 #endif 141 142 /* request queueing */ 143 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 144 static void ciss_preen_command(struct ciss_request *cr); 145 static void ciss_release_request(struct ciss_request *cr); 146 147 /* request helpers */ 148 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 149 int opcode, void **bufp, size_t bufsize); 150 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 151 152 /* DMA map/unmap */ 153 static int ciss_map_request(struct ciss_request *cr); 154 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 155 int nseg, int error); 156 static void ciss_unmap_request(struct ciss_request *cr); 157 158 /* CAM interface */ 159 static int ciss_cam_init(struct ciss_softc *sc); 160 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 161 static void ciss_cam_rescan_all(struct ciss_softc *sc); 162 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 163 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 164 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 165 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 166 static void ciss_cam_poll(struct cam_sim *sim); 167 static void ciss_cam_complete(struct ciss_request *cr); 168 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 169 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 170 static int ciss_name_device(struct ciss_softc *sc, int target); 171 172 /* periodic status monitoring */ 173 static void ciss_periodic(void *arg); 174 static void ciss_notify_event(struct ciss_softc *sc); 175 static void ciss_notify_complete(struct ciss_request *cr); 176 static int ciss_notify_abort(struct ciss_softc *sc); 177 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 178 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 179 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 180 181 /* debugging output */ 182 static void ciss_print_request(struct ciss_request *cr); 183 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 184 static const char *ciss_name_ldrive_status(int status); 185 static int ciss_decode_ldrive_status(int status); 186 static const char *ciss_name_ldrive_org(int org); 187 static const char *ciss_name_command_status(int status); 188 189 /* 190 * PCI bus interface. 191 */ 192 static device_method_t ciss_methods[] = { 193 /* Device interface */ 194 DEVMETHOD(device_probe, ciss_probe), 195 DEVMETHOD(device_attach, ciss_attach), 196 DEVMETHOD(device_detach, ciss_detach), 197 DEVMETHOD(device_shutdown, ciss_shutdown), 198 { 0, 0 } 199 }; 200 201 static driver_t ciss_pci_driver = { 202 "ciss", 203 ciss_methods, 204 sizeof(struct ciss_softc) 205 }; 206 207 static devclass_t ciss_devclass; 208 209 DECLARE_DUMMY_MODULE(ciss); 210 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 211 212 /* 213 * Control device interface. 214 */ 215 static d_open_t ciss_open; 216 static d_close_t ciss_close; 217 static d_ioctl_t ciss_ioctl; 218 219 #define CISS_CDEV_MAJOR 166 220 221 static struct cdevsw ciss_cdevsw = { 222 /* name */ "ciss", 223 /* cmaj */ CISS_CDEV_MAJOR, 224 /* flags */ 0, 225 /* port */ NULL, 226 /* clone */ NULL, 227 ciss_open, ciss_close, noread, nowrite, ciss_ioctl, 228 nopoll, nommap, nostrategy, 229 nodump, nopsize, nokqfilter 230 }; 231 232 /************************************************************************ 233 * CISS adapters amazingly don't have a defined programming interface 234 * value. (One could say some very despairing things about PCI and 235 * people just not getting the general idea.) So we are forced to 236 * stick with matching against subvendor/subdevice, and thus have to 237 * be updated for every new CISS adapter that appears. 238 */ 239 #define CISS_BOARD_SA5 (1<<0) 240 #define CISS_BOARD_SA5B (1<<1) 241 242 static struct 243 { 244 u_int16_t subvendor; 245 u_int16_t subdevice; 246 int flags; 247 char *desc; 248 } ciss_vendor_data[] = { 249 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 250 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 251 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 252 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 253 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 254 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 255 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 256 { 0, 0, 0, NULL } 257 }; 258 259 /************************************************************************ 260 * Find a match for the device in our list of known adapters. 261 */ 262 static int 263 ciss_lookup(device_t dev) 264 { 265 int i; 266 267 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 268 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 269 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 270 return(i); 271 } 272 return(-1); 273 } 274 275 /************************************************************************ 276 * Match a known CISS adapter. 277 */ 278 static int 279 ciss_probe(device_t dev) 280 { 281 int i; 282 283 i = ciss_lookup(dev); 284 if (i != -1) { 285 device_set_desc(dev, ciss_vendor_data[i].desc); 286 return(-10); 287 } 288 return(ENOENT); 289 } 290 291 /************************************************************************ 292 * Attach the driver to this adapter. 293 */ 294 static int 295 ciss_attach(device_t dev) 296 { 297 struct ciss_softc *sc; 298 int i, error; 299 300 debug_called(1); 301 302 #ifdef CISS_DEBUG 303 /* print structure/union sizes */ 304 debug_struct(ciss_command); 305 debug_struct(ciss_header); 306 debug_union(ciss_device_address); 307 debug_struct(ciss_cdb); 308 debug_struct(ciss_report_cdb); 309 debug_struct(ciss_notify_cdb); 310 debug_struct(ciss_notify); 311 debug_struct(ciss_message_cdb); 312 debug_struct(ciss_error_info_pointer); 313 debug_struct(ciss_error_info); 314 debug_struct(ciss_sg_entry); 315 debug_struct(ciss_config_table); 316 debug_struct(ciss_bmic_cdb); 317 debug_struct(ciss_bmic_id_ldrive); 318 debug_struct(ciss_bmic_id_lstatus); 319 debug_struct(ciss_bmic_id_table); 320 debug_struct(ciss_bmic_id_pdrive); 321 debug_struct(ciss_bmic_blink_pdrive); 322 debug_struct(ciss_bmic_flush_cache); 323 debug_const(CISS_MAX_REQUESTS); 324 debug_const(CISS_MAX_LOGICAL); 325 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 326 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 327 debug_const(CISS_COMMAND_ALLOC_SIZE); 328 debug_const(CISS_COMMAND_SG_LENGTH); 329 330 debug_type(cciss_pci_info_struct); 331 debug_type(cciss_coalint_struct); 332 debug_type(cciss_coalint_struct); 333 debug_type(NodeName_type); 334 debug_type(NodeName_type); 335 debug_type(Heartbeat_type); 336 debug_type(BusTypes_type); 337 debug_type(FirmwareVer_type); 338 debug_type(DriverVer_type); 339 debug_type(IOCTL_Command_struct); 340 #endif 341 342 sc = device_get_softc(dev); 343 sc->ciss_dev = dev; 344 345 /* 346 * Work out adapter type. 347 */ 348 i = ciss_lookup(dev); 349 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 350 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 351 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 352 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 353 } else { 354 /* really an error on our part */ 355 ciss_printf(sc, "unable to determine hardware type\n"); 356 error = ENXIO; 357 goto out; 358 } 359 360 /* 361 * Do PCI-specific init. 362 */ 363 if ((error = ciss_init_pci(sc)) != 0) 364 goto out; 365 366 /* 367 * Initialise driver queues. 368 */ 369 ciss_initq_free(sc); 370 ciss_initq_busy(sc); 371 ciss_initq_complete(sc); 372 373 /* 374 * Initialise command/request pool. 375 */ 376 if ((error = ciss_init_requests(sc)) != 0) 377 goto out; 378 379 /* 380 * Get adapter information. 381 */ 382 if ((error = ciss_identify_adapter(sc)) != 0) 383 goto out; 384 385 /* 386 * Build our private table of logical devices. 387 */ 388 if ((error = ciss_init_logical(sc)) != 0) 389 goto out; 390 391 /* 392 * Enable interrupts so that the CAM scan can complete. 393 */ 394 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 395 396 /* 397 * Initialise the CAM interface. 398 */ 399 if ((error = ciss_cam_init(sc)) != 0) 400 goto out; 401 402 /* 403 * Start the heartbeat routine and event chain. 404 */ 405 ciss_periodic(sc); 406 407 /* 408 * Create the control device. 409 */ 410 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev)); 411 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 412 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 413 "ciss%d", device_get_unit(sc->ciss_dev)); 414 sc->ciss_dev_t->si_drv1 = sc; 415 416 /* 417 * The adapter is running; synchronous commands can now sleep 418 * waiting for an interrupt to signal completion. 419 */ 420 sc->ciss_flags |= CISS_FLAG_RUNNING; 421 422 error = 0; 423 out: 424 if (error != 0) 425 ciss_free(sc); 426 return(error); 427 } 428 429 /************************************************************************ 430 * Detach the driver from this adapter. 431 */ 432 static int 433 ciss_detach(device_t dev) 434 { 435 struct ciss_softc *sc = device_get_softc(dev); 436 437 debug_called(1); 438 439 /* flush adapter cache */ 440 ciss_flush_adapter(sc); 441 442 /* release all resources */ 443 ciss_free(sc); 444 445 return(0); 446 447 } 448 449 /************************************************************************ 450 * Prepare adapter for system shutdown. 451 */ 452 static int 453 ciss_shutdown(device_t dev) 454 { 455 struct ciss_softc *sc = device_get_softc(dev); 456 457 debug_called(1); 458 459 /* flush adapter cache */ 460 ciss_flush_adapter(sc); 461 462 return(0); 463 } 464 465 /************************************************************************ 466 * Perform PCI-specific attachment actions. 467 */ 468 static int 469 ciss_init_pci(struct ciss_softc *sc) 470 { 471 uintptr_t cbase, csize, cofs; 472 int error; 473 474 debug_called(1); 475 476 /* 477 * Allocate register window first (we need this to find the config 478 * struct). 479 */ 480 error = ENXIO; 481 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 482 if ((sc->ciss_regs_resource = 483 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 484 0, ~0, 1, RF_ACTIVE)) == NULL) { 485 ciss_printf(sc, "can't allocate register window\n"); 486 return(ENXIO); 487 } 488 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 489 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 490 491 /* 492 * Find the BAR holding the config structure. If it's not the one 493 * we already mapped for registers, map it too. 494 */ 495 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 496 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 497 if ((sc->ciss_cfg_resource = 498 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 499 0, ~0, 1, RF_ACTIVE)) == NULL) { 500 ciss_printf(sc, "can't allocate config window\n"); 501 return(ENXIO); 502 } 503 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 504 csize = rman_get_end(sc->ciss_cfg_resource) - 505 rman_get_start(sc->ciss_cfg_resource) + 1; 506 } else { 507 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 508 csize = rman_get_end(sc->ciss_regs_resource) - 509 rman_get_start(sc->ciss_regs_resource) + 1; 510 } 511 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 512 513 /* 514 * Use the base/size/offset values we just calculated to 515 * sanity-check the config structure. If it's OK, point to it. 516 */ 517 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 518 ciss_printf(sc, "config table outside window\n"); 519 return(ENXIO); 520 } 521 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 522 debug(1, "config struct at %p", sc->ciss_cfg); 523 524 /* 525 * Validate the config structure. If we supported other transport 526 * methods, we could select amongst them at this point in time. 527 */ 528 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 529 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 530 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 531 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 532 return(ENXIO); 533 } 534 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 535 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 536 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 537 sc->ciss_cfg->valence); 538 return(ENXIO); 539 } 540 541 /* 542 * Put the board into simple mode, and tell it we're using the low 543 * 4GB of RAM. Set the default interrupt coalescing options. 544 */ 545 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 546 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 547 return(ENXIO); 548 } 549 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 550 sc->ciss_cfg->command_physlimit = 0; 551 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 552 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 553 554 if (ciss_update_config(sc)) { 555 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 556 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 557 return(ENXIO); 558 } 559 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 560 ciss_printf(sc, 561 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 562 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 563 return(ENXIO); 564 } 565 566 /* 567 * Wait for the adapter to come ready. 568 */ 569 if ((error = ciss_wait_adapter(sc)) != 0) 570 return(error); 571 572 /* 573 * Turn off interrupts before we go routing anything. 574 */ 575 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 576 577 /* 578 * Allocate and set up our interrupt. 579 */ 580 sc->ciss_irq_rid = 0; 581 if ((sc->ciss_irq_resource = 582 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 583 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 584 ciss_printf(sc, "can't allocate interrupt\n"); 585 return(ENXIO); 586 } 587 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 588 &sc->ciss_intr)) { 589 ciss_printf(sc, "can't set up interrupt\n"); 590 return(ENXIO); 591 } 592 593 /* 594 * Allocate the parent bus DMA tag appropriate for our PCI 595 * interface. 596 * 597 * Note that "simple" adapters can only address within a 32-bit 598 * span. 599 */ 600 if (bus_dma_tag_create(NULL, /* parent */ 601 1, 0, /* alignment, boundary */ 602 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 603 BUS_SPACE_MAXADDR, /* highaddr */ 604 NULL, NULL, /* filter, filterarg */ 605 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 606 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 607 BUS_DMA_ALLOCNOW, /* flags */ 608 &sc->ciss_parent_dmat)) { 609 ciss_printf(sc, "can't allocate parent DMA tag\n"); 610 return(ENOMEM); 611 } 612 613 /* 614 * Create DMA tag for mapping buffers into adapter-addressable 615 * space. 616 */ 617 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 618 1, 0, /* alignment, boundary */ 619 BUS_SPACE_MAXADDR, /* lowaddr */ 620 BUS_SPACE_MAXADDR, /* highaddr */ 621 NULL, NULL, /* filter, filterarg */ 622 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 623 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 624 0, /* flags */ 625 &sc->ciss_buffer_dmat)) { 626 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 627 return(ENOMEM); 628 } 629 return(0); 630 } 631 632 /************************************************************************ 633 * Wait for the adapter to come ready. 634 */ 635 static int 636 ciss_wait_adapter(struct ciss_softc *sc) 637 { 638 int i; 639 640 debug_called(1); 641 642 /* 643 * Wait for the adapter to come ready. 644 */ 645 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 646 ciss_printf(sc, "waiting for adapter to come ready...\n"); 647 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 648 DELAY(1000000); /* one second */ 649 if (i > 30) { 650 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 651 return(EIO); 652 } 653 } 654 } 655 return(0); 656 } 657 658 /************************************************************************ 659 * Flush the adapter cache. 660 */ 661 static int 662 ciss_flush_adapter(struct ciss_softc *sc) 663 { 664 struct ciss_request *cr; 665 struct ciss_bmic_flush_cache *cbfc; 666 int error, command_status; 667 668 debug_called(1); 669 670 cr = NULL; 671 cbfc = NULL; 672 673 /* 674 * Build a BMIC request to flush the cache. We don't disable 675 * it, as we may be going to do more I/O (eg. we are emulating 676 * the Synchronise Cache command). 677 */ 678 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 679 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 680 (void **)&cbfc, sizeof(*cbfc))) != 0) 681 goto out; 682 683 /* 684 * Submit the request and wait for it to complete. 685 */ 686 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 687 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 688 goto out; 689 } 690 691 /* 692 * Check response. 693 */ 694 ciss_report_request(cr, &command_status, NULL); 695 switch(command_status) { 696 case CISS_CMD_STATUS_SUCCESS: 697 break; 698 default: 699 ciss_printf(sc, "error flushing cache (%s)\n", 700 ciss_name_command_status(command_status)); 701 error = EIO; 702 goto out; 703 } 704 705 out: 706 if (cbfc != NULL) 707 free(cbfc, CISS_MALLOC_CLASS); 708 if (cr != NULL) 709 ciss_release_request(cr); 710 return(error); 711 } 712 713 /************************************************************************ 714 * Allocate memory for the adapter command structures, initialise 715 * the request structures. 716 * 717 * Note that the entire set of commands are allocated in a single 718 * contiguous slab. 719 */ 720 static int 721 ciss_init_requests(struct ciss_softc *sc) 722 { 723 struct ciss_request *cr; 724 int i; 725 726 debug_called(1); 727 728 /* 729 * Calculate the number of request structures/commands we are 730 * going to provide for this adapter. 731 */ 732 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 733 734 if (1/*bootverbose*/) 735 ciss_printf(sc, "using %d of %d available commands\n", 736 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 737 738 /* 739 * Create the DMA tag for commands. 740 */ 741 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 742 1, 0, /* alignment, boundary */ 743 BUS_SPACE_MAXADDR, /* lowaddr */ 744 BUS_SPACE_MAXADDR, /* highaddr */ 745 NULL, NULL, /* filter, filterarg */ 746 CISS_COMMAND_ALLOC_SIZE * 747 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 748 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 749 0, /* flags */ 750 &sc->ciss_command_dmat)) { 751 ciss_printf(sc, "can't allocate command DMA tag\n"); 752 return(ENOMEM); 753 } 754 /* 755 * Allocate memory and make it available for DMA. 756 */ 757 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 758 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 759 ciss_printf(sc, "can't allocate command memory\n"); 760 return(ENOMEM); 761 } 762 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 763 sizeof(struct ciss_command) * sc->ciss_max_requests, 764 ciss_command_map_helper, sc, 0); 765 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 766 767 /* 768 * Set up the request and command structures, push requests onto 769 * the free queue. 770 */ 771 for (i = 1; i < sc->ciss_max_requests; i++) { 772 cr = &sc->ciss_request[i]; 773 cr->cr_sc = sc; 774 cr->cr_tag = i; 775 ciss_enqueue_free(cr); 776 } 777 return(0); 778 } 779 780 static void 781 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 782 { 783 struct ciss_softc *sc = (struct ciss_softc *)arg; 784 785 sc->ciss_command_phys = segs->ds_addr; 786 } 787 788 /************************************************************************ 789 * Identify the adapter, print some information about it. 790 */ 791 static int 792 ciss_identify_adapter(struct ciss_softc *sc) 793 { 794 struct ciss_request *cr; 795 int error, command_status; 796 797 debug_called(1); 798 799 cr = NULL; 800 801 /* 802 * Get a request, allocate storage for the adapter data. 803 */ 804 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 805 (void **)&sc->ciss_id, 806 sizeof(*sc->ciss_id))) != 0) 807 goto out; 808 809 /* 810 * Submit the request and wait for it to complete. 811 */ 812 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 813 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 814 goto out; 815 } 816 817 /* 818 * Check response. 819 */ 820 ciss_report_request(cr, &command_status, NULL); 821 switch(command_status) { 822 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 823 break; 824 case CISS_CMD_STATUS_DATA_UNDERRUN: 825 case CISS_CMD_STATUS_DATA_OVERRUN: 826 ciss_printf(sc, "data over/underrun reading adapter information\n"); 827 default: 828 ciss_printf(sc, "error reading adapter information (%s)\n", 829 ciss_name_command_status(command_status)); 830 error = EIO; 831 goto out; 832 } 833 834 /* sanity-check reply */ 835 if (!sc->ciss_id->big_map_supported) { 836 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 837 error = ENXIO; 838 goto out; 839 } 840 841 #if 0 842 /* XXX later revisions may not need this */ 843 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 844 #endif 845 846 /* XXX only really required for old 5300 adapters? */ 847 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 848 849 /* print information */ 850 if (1/*bootverbose*/) { 851 ciss_printf(sc, " %d logical drive%s configured\n", 852 sc->ciss_id->configured_logical_drives, 853 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 854 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 855 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 856 857 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 858 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 859 ciss_printf(sc, " supported I/O methods 0x%b\n", 860 sc->ciss_cfg->supported_methods, 861 "\20\1READY\2simple\3performant\4MEMQ\n"); 862 ciss_printf(sc, " active I/O method 0x%b\n", 863 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 864 ciss_printf(sc, " 4G page base 0x%08x\n", 865 sc->ciss_cfg->command_physlimit); 866 ciss_printf(sc, " interrupt coalesce delay %dus\n", 867 sc->ciss_cfg->interrupt_coalesce_delay); 868 ciss_printf(sc, " interrupt coalesce count %d\n", 869 sc->ciss_cfg->interrupt_coalesce_count); 870 ciss_printf(sc, " max outstanding commands %d\n", 871 sc->ciss_cfg->max_outstanding_commands); 872 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 873 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 874 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 875 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 876 } 877 878 out: 879 if (error) { 880 if (sc->ciss_id != NULL) { 881 free(sc->ciss_id, CISS_MALLOC_CLASS); 882 sc->ciss_id = NULL; 883 } 884 } 885 if (cr != NULL) 886 ciss_release_request(cr); 887 return(error); 888 } 889 890 /************************************************************************ 891 * Find logical drives on the adapter. 892 */ 893 static int 894 ciss_init_logical(struct ciss_softc *sc) 895 { 896 struct ciss_request *cr; 897 struct ciss_command *cc; 898 struct ciss_report_cdb *crc; 899 struct ciss_lun_report *cll; 900 int error, i; 901 size_t report_size; 902 int ndrives; 903 int command_status; 904 905 debug_called(1); 906 907 cr = NULL; 908 cll = NULL; 909 910 /* 911 * Get a request, allocate storage for the address list. 912 */ 913 if ((error = ciss_get_request(sc, &cr)) != 0) 914 goto out; 915 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 916 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 917 918 /* 919 * Build the Report Logical LUNs command. 920 */ 921 cc = CISS_FIND_COMMAND(cr); 922 cr->cr_data = cll; 923 cr->cr_length = report_size; 924 cr->cr_flags = CISS_REQ_DATAIN; 925 926 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 927 cc->header.address.physical.bus = 0; 928 cc->header.address.physical.target = 0; 929 cc->cdb.cdb_length = sizeof(*crc); 930 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 931 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 932 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 933 cc->cdb.timeout = 30; /* XXX better suggestions? */ 934 935 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 936 bzero(crc, sizeof(*crc)); 937 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 938 crc->length = htonl(report_size); /* big-endian field */ 939 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 940 941 /* 942 * Submit the request and wait for it to complete. (timeout 943 * here should be much greater than above) 944 */ 945 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 946 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 947 goto out; 948 } 949 950 /* 951 * Check response. Note that data over/underrun is OK. 952 */ 953 ciss_report_request(cr, &command_status, NULL); 954 switch(command_status) { 955 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 956 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 957 break; 958 case CISS_CMD_STATUS_DATA_OVERRUN: 959 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 960 CISS_MAX_LOGICAL); 961 break; 962 default: 963 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 964 ciss_name_command_status(command_status)); 965 error = EIO; 966 goto out; 967 } 968 ciss_release_request(cr); 969 cr = NULL; 970 971 /* sanity-check reply */ 972 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 973 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 974 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 975 ndrives, CISS_MAX_LOGICAL); 976 return(ENXIO); 977 } 978 979 /* 980 * Save logical drive information. 981 */ 982 if (1/*bootverbose*/) 983 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 984 if (ndrives != sc->ciss_id->configured_logical_drives) 985 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 986 ndrives, sc->ciss_id->configured_logical_drives); 987 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 988 if (i < ndrives) { 989 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 990 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 991 continue; 992 /* 993 * If the drive has had media exchanged, we should bring it online. 994 */ 995 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 996 ciss_accept_media(sc, i, 0); 997 998 } else { 999 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1000 } 1001 } 1002 error = 0; 1003 1004 out: 1005 /* 1006 * Note that if the error is a timeout, we are taking a slight 1007 * risk here and assuming that the adapter will not respond at a 1008 * later time, scribbling over host memory. 1009 */ 1010 if (cr != NULL) 1011 ciss_release_request(cr); 1012 if (cll != NULL) 1013 free(cll, CISS_MALLOC_CLASS); 1014 return(error); 1015 } 1016 1017 static int 1018 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1019 { 1020 struct ciss_request *cr; 1021 struct ciss_command *cc; 1022 struct scsi_inquiry *inq; 1023 int error; 1024 int command_status; 1025 int lun; 1026 1027 cr = NULL; 1028 lun = ld->cl_address.logical.lun; 1029 1030 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1031 1032 if ((error = ciss_get_request(sc, &cr)) != 0) 1033 goto out; 1034 1035 cc = CISS_FIND_COMMAND(cr); 1036 cr->cr_data = &ld->cl_geometry; 1037 cr->cr_length = sizeof(ld->cl_geometry); 1038 cr->cr_flags = CISS_REQ_DATAIN; 1039 1040 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1041 cc->header.address.logical.lun = lun; 1042 cc->cdb.cdb_length = 6; 1043 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1044 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1045 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1046 cc->cdb.timeout = 30; 1047 1048 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1049 inq->opcode = INQUIRY; 1050 inq->byte2 = SI_EVPD; 1051 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1052 inq->length = sizeof(ld->cl_geometry); 1053 1054 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1055 ciss_printf(sc, "error getting geometry (%d)\n", error); 1056 goto out; 1057 } 1058 1059 ciss_report_request(cr, &command_status, NULL); 1060 switch(command_status) { 1061 case CISS_CMD_STATUS_SUCCESS: 1062 case CISS_CMD_STATUS_DATA_UNDERRUN: 1063 break; 1064 case CISS_CMD_STATUS_DATA_OVERRUN: 1065 ciss_printf(sc, "WARNING: Data overrun\n"); 1066 break; 1067 default: 1068 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1069 ciss_name_command_status(command_status)); 1070 break; 1071 } 1072 1073 out: 1074 if (cr != NULL) 1075 ciss_release_request(cr); 1076 return(error); 1077 } 1078 /************************************************************************ 1079 * Identify a logical drive, initialise state related to it. 1080 */ 1081 static int 1082 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1083 { 1084 struct ciss_request *cr; 1085 struct ciss_command *cc; 1086 struct ciss_bmic_cdb *cbc; 1087 int error, command_status; 1088 1089 debug_called(1); 1090 1091 cr = NULL; 1092 1093 /* 1094 * Build a BMIC request to fetch the drive ID. 1095 */ 1096 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1097 (void **)&ld->cl_ldrive, 1098 sizeof(*ld->cl_ldrive))) != 0) 1099 goto out; 1100 cc = CISS_FIND_COMMAND(cr); 1101 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1102 cbc->log_drive = ld->cl_address.logical.lun; 1103 1104 /* 1105 * Submit the request and wait for it to complete. 1106 */ 1107 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1108 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1109 goto out; 1110 } 1111 1112 /* 1113 * Check response. 1114 */ 1115 ciss_report_request(cr, &command_status, NULL); 1116 switch(command_status) { 1117 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1118 break; 1119 case CISS_CMD_STATUS_DATA_UNDERRUN: 1120 case CISS_CMD_STATUS_DATA_OVERRUN: 1121 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1122 default: 1123 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1124 ciss_name_command_status(command_status)); 1125 error = EIO; 1126 goto out; 1127 } 1128 ciss_release_request(cr); 1129 cr = NULL; 1130 1131 /* 1132 * Build a CISS BMIC command to get the logical drive status. 1133 */ 1134 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1135 goto out; 1136 1137 /* 1138 * Get the logical drive geometry. 1139 */ 1140 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1141 goto out; 1142 1143 /* 1144 * Print the drive's basic characteristics. 1145 */ 1146 if (1/*bootverbose*/) { 1147 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1148 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1149 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1150 ld->cl_ldrive->block_size)); 1151 1152 ciss_print_ldrive(sc, ld); 1153 } 1154 out: 1155 if (error != 0) { 1156 /* make the drive not-exist */ 1157 ld->cl_status = CISS_LD_NONEXISTENT; 1158 if (ld->cl_ldrive != NULL) { 1159 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1160 ld->cl_ldrive = NULL; 1161 } 1162 if (ld->cl_lstatus != NULL) { 1163 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1164 ld->cl_lstatus = NULL; 1165 } 1166 } 1167 if (cr != NULL) 1168 ciss_release_request(cr); 1169 1170 return(error); 1171 } 1172 1173 /************************************************************************ 1174 * Get status for a logical drive. 1175 * 1176 * XXX should we also do this in response to Test Unit Ready? 1177 */ 1178 static int 1179 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1180 { 1181 struct ciss_request *cr; 1182 struct ciss_command *cc; 1183 struct ciss_bmic_cdb *cbc; 1184 int error, command_status; 1185 1186 /* 1187 * Build a CISS BMIC command to get the logical drive status. 1188 */ 1189 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1190 (void **)&ld->cl_lstatus, 1191 sizeof(*ld->cl_lstatus))) != 0) 1192 goto out; 1193 cc = CISS_FIND_COMMAND(cr); 1194 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1195 cbc->log_drive = ld->cl_address.logical.lun; 1196 1197 /* 1198 * Submit the request and wait for it to complete. 1199 */ 1200 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1201 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1202 goto out; 1203 } 1204 1205 /* 1206 * Check response. 1207 */ 1208 ciss_report_request(cr, &command_status, NULL); 1209 switch(command_status) { 1210 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1211 break; 1212 case CISS_CMD_STATUS_DATA_UNDERRUN: 1213 case CISS_CMD_STATUS_DATA_OVERRUN: 1214 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1215 default: 1216 ciss_printf(sc, "error reading logical drive status (%s)\n", 1217 ciss_name_command_status(command_status)); 1218 error = EIO; 1219 goto out; 1220 } 1221 1222 /* 1223 * Set the drive's summary status based on the returned status. 1224 * 1225 * XXX testing shows that a failed JBOD drive comes back at next 1226 * boot in "queued for expansion" mode. WTF? 1227 */ 1228 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1229 1230 out: 1231 if (cr != NULL) 1232 ciss_release_request(cr); 1233 return(error); 1234 } 1235 1236 /************************************************************************ 1237 * Notify the adapter of a config update. 1238 */ 1239 static int 1240 ciss_update_config(struct ciss_softc *sc) 1241 { 1242 int i; 1243 1244 debug_called(1); 1245 1246 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1247 for (i = 0; i < 1000; i++) { 1248 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1249 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1250 return(0); 1251 } 1252 DELAY(1000); 1253 } 1254 return(1); 1255 } 1256 1257 /************************************************************************ 1258 * Accept new media into a logical drive. 1259 * 1260 * XXX The drive has previously been offline; it would be good if we 1261 * could make sure it's not open right now. 1262 */ 1263 static int 1264 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1265 { 1266 struct ciss_request *cr; 1267 struct ciss_command *cc; 1268 struct ciss_bmic_cdb *cbc; 1269 int error; 1270 1271 debug(0, "bringing logical drive %d back online %ssynchronously", 1272 ldrive, async ? "a" : ""); 1273 1274 /* 1275 * Build a CISS BMIC command to bring the drive back online. 1276 */ 1277 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1278 NULL, 0)) != 0) 1279 goto out; 1280 cc = CISS_FIND_COMMAND(cr); 1281 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1282 cbc->log_drive = ldrive; 1283 1284 /* 1285 * Dispatch the request asynchronously if we can't sleep waiting 1286 * for it to complete. 1287 */ 1288 if (async) { 1289 cr->cr_complete = ciss_accept_media_complete; 1290 if ((error = ciss_start(cr)) != 0) 1291 goto out; 1292 return(0); 1293 } else { 1294 /* 1295 * Submit the request and wait for it to complete. 1296 */ 1297 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1298 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1299 goto out; 1300 } 1301 } 1302 1303 /* 1304 * Call the completion callback manually. 1305 */ 1306 ciss_accept_media_complete(cr); 1307 return(0); 1308 1309 out: 1310 if (cr != NULL) 1311 ciss_release_request(cr); 1312 return(error); 1313 } 1314 1315 static void 1316 ciss_accept_media_complete(struct ciss_request *cr) 1317 { 1318 int command_status; 1319 1320 /* 1321 * Check response. 1322 */ 1323 ciss_report_request(cr, &command_status, NULL); 1324 switch(command_status) { 1325 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1326 /* we should get a logical drive status changed event here */ 1327 break; 1328 default: 1329 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1330 ciss_name_command_status(command_status)); 1331 break; 1332 } 1333 ciss_release_request(cr); 1334 } 1335 1336 /************************************************************************ 1337 * Release adapter resources. 1338 */ 1339 static void 1340 ciss_free(struct ciss_softc *sc) 1341 { 1342 debug_called(1); 1343 1344 /* we're going away */ 1345 sc->ciss_flags |= CISS_FLAG_ABORTING; 1346 1347 /* terminate the periodic heartbeat routine */ 1348 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1349 1350 /* cancel the Event Notify chain */ 1351 ciss_notify_abort(sc); 1352 1353 /* free the controller data */ 1354 if (sc->ciss_id != NULL) 1355 free(sc->ciss_id, CISS_MALLOC_CLASS); 1356 1357 /* release I/O resources */ 1358 if (sc->ciss_regs_resource != NULL) 1359 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1360 sc->ciss_regs_rid, sc->ciss_regs_resource); 1361 if (sc->ciss_cfg_resource != NULL) 1362 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1363 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1364 if (sc->ciss_intr != NULL) 1365 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1366 if (sc->ciss_irq_resource != NULL) 1367 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1368 sc->ciss_irq_rid, sc->ciss_irq_resource); 1369 1370 /* destroy DMA tags */ 1371 if (sc->ciss_parent_dmat) 1372 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1373 if (sc->ciss_buffer_dmat) 1374 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1375 1376 /* destroy command memory and DMA tag */ 1377 if (sc->ciss_command != NULL) { 1378 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1379 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1380 } 1381 if (sc->ciss_buffer_dmat) 1382 bus_dma_tag_destroy(sc->ciss_command_dmat); 1383 1384 /* disconnect from CAM */ 1385 if (sc->ciss_cam_sim) { 1386 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1387 cam_sim_free(sc->ciss_cam_sim); 1388 } 1389 if (sc->ciss_cam_devq) 1390 cam_simq_release(sc->ciss_cam_devq); 1391 /* XXX what about ciss_cam_path? */ 1392 } 1393 1394 /************************************************************************ 1395 * Give a command to the adapter. 1396 * 1397 * Note that this uses the simple transport layer directly. If we 1398 * want to add support for other layers, we'll need a switch of some 1399 * sort. 1400 * 1401 * Note that the simple transport layer has no way of refusing a 1402 * command; we only have as many request structures as the adapter 1403 * supports commands, so we don't have to check (this presumes that 1404 * the adapter can handle commands as fast as we throw them at it). 1405 */ 1406 static int 1407 ciss_start(struct ciss_request *cr) 1408 { 1409 struct ciss_command *cc; /* XXX debugging only */ 1410 int error; 1411 1412 cc = CISS_FIND_COMMAND(cr); 1413 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1414 1415 /* 1416 * Map the request's data. 1417 */ 1418 if ((error = ciss_map_request(cr))) 1419 return(error); 1420 1421 #if 0 1422 ciss_print_request(cr); 1423 #endif 1424 1425 /* 1426 * Post the command to the adapter. 1427 */ 1428 ciss_enqueue_busy(cr); 1429 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1430 1431 return(0); 1432 } 1433 1434 /************************************************************************ 1435 * Fetch completed request(s) from the adapter, queue them for 1436 * completion handling. 1437 * 1438 * Note that this uses the simple transport layer directly. If we 1439 * want to add support for other layers, we'll need a switch of some 1440 * sort. 1441 * 1442 * Note that the simple transport mechanism does not require any 1443 * reentrancy protection; the OPQ read is atomic. If there is a 1444 * chance of a race with something else that might move the request 1445 * off the busy list, then we will have to lock against that 1446 * (eg. timeouts, etc.) 1447 */ 1448 static void 1449 ciss_done(struct ciss_softc *sc) 1450 { 1451 struct ciss_request *cr; 1452 struct ciss_command *cc; 1453 u_int32_t tag, index; 1454 int complete; 1455 1456 debug_called(3); 1457 1458 /* 1459 * Loop quickly taking requests from the adapter and moving them 1460 * from the busy queue to the completed queue. 1461 */ 1462 complete = 0; 1463 for (;;) { 1464 1465 /* see if the OPQ contains anything */ 1466 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1467 break; 1468 1469 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1470 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1471 break; 1472 index = tag >> 2; 1473 debug(2, "completed command %d%s", index, 1474 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1475 if (index >= sc->ciss_max_requests) { 1476 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1477 continue; 1478 } 1479 cr = &(sc->ciss_request[index]); 1480 cc = CISS_FIND_COMMAND(cr); 1481 cc->header.host_tag = tag; /* not updated by adapter */ 1482 if (ciss_remove_busy(cr)) { 1483 /* assume this is garbage out of the adapter */ 1484 ciss_printf(sc, "completed nonbusy request %d\n", index); 1485 } else { 1486 ciss_enqueue_complete(cr); 1487 } 1488 complete = 1; 1489 } 1490 1491 /* 1492 * Invoke completion processing. If we can defer this out of 1493 * interrupt context, that'd be good. 1494 */ 1495 if (complete) 1496 ciss_complete(sc); 1497 } 1498 1499 /************************************************************************ 1500 * Take an interrupt from the adapter. 1501 */ 1502 static void 1503 ciss_intr(void *arg) 1504 { 1505 struct ciss_softc *sc = (struct ciss_softc *)arg; 1506 1507 /* 1508 * The only interrupt we recognise indicates that there are 1509 * entries in the outbound post queue. 1510 */ 1511 ciss_done(sc); 1512 } 1513 1514 /************************************************************************ 1515 * Process completed requests. 1516 * 1517 * Requests can be completed in three fashions: 1518 * 1519 * - by invoking a callback function (cr_complete is non-null) 1520 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1521 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1522 */ 1523 static void 1524 ciss_complete(struct ciss_softc *sc) 1525 { 1526 struct ciss_request *cr; 1527 1528 debug_called(2); 1529 1530 /* 1531 * Loop taking requests off the completed queue and performing 1532 * completion processing on them. 1533 */ 1534 for (;;) { 1535 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1536 break; 1537 ciss_unmap_request(cr); 1538 1539 /* 1540 * If the request has a callback, invoke it. 1541 */ 1542 if (cr->cr_complete != NULL) { 1543 cr->cr_complete(cr); 1544 continue; 1545 } 1546 1547 /* 1548 * If someone is sleeping on this request, wake them up. 1549 */ 1550 if (cr->cr_flags & CISS_REQ_SLEEP) { 1551 cr->cr_flags &= ~CISS_REQ_SLEEP; 1552 wakeup(cr); 1553 continue; 1554 } 1555 1556 /* 1557 * If someone is polling this request for completion, signal. 1558 */ 1559 if (cr->cr_flags & CISS_REQ_POLL) { 1560 cr->cr_flags &= ~CISS_REQ_POLL; 1561 continue; 1562 } 1563 1564 /* 1565 * Give up and throw the request back on the free queue. This 1566 * should never happen; resources will probably be lost. 1567 */ 1568 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1569 ciss_enqueue_free(cr); 1570 } 1571 } 1572 1573 /************************************************************************ 1574 * Report on the completion status of a request, and pass back SCSI 1575 * and command status values. 1576 */ 1577 static int 1578 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1579 { 1580 struct ciss_command *cc; 1581 struct ciss_error_info *ce; 1582 1583 debug_called(2); 1584 1585 cc = CISS_FIND_COMMAND(cr); 1586 ce = (struct ciss_error_info *)&(cc->sg[0]); 1587 1588 /* 1589 * We don't consider data under/overrun an error for the Report 1590 * Logical/Physical LUNs commands. 1591 */ 1592 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1593 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1594 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1595 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1596 debug(2, "ignoring irrelevant under/overrun error"); 1597 } 1598 1599 /* 1600 * Check the command's error bit, if clear, there's no status and 1601 * everything is OK. 1602 */ 1603 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1604 if (scsi_status != NULL) 1605 *scsi_status = SCSI_STATUS_OK; 1606 if (command_status != NULL) 1607 *command_status = CISS_CMD_STATUS_SUCCESS; 1608 return(0); 1609 } else { 1610 if (command_status != NULL) 1611 *command_status = ce->command_status; 1612 if (scsi_status != NULL) { 1613 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1614 *scsi_status = ce->scsi_status; 1615 } else { 1616 *scsi_status = -1; 1617 } 1618 } 1619 if (bootverbose) 1620 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1621 ce->command_status, ciss_name_command_status(ce->command_status), 1622 ce->scsi_status); 1623 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1624 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1625 ce->additional_error_info.invalid_command.offense_size, 1626 ce->additional_error_info.invalid_command.offense_offset, 1627 ce->additional_error_info.invalid_command.offense_value); 1628 } 1629 } 1630 return(1); 1631 } 1632 1633 /************************************************************************ 1634 * Issue a request and don't return until it's completed. 1635 * 1636 * Depending on adapter status, we may poll or sleep waiting for 1637 * completion. 1638 */ 1639 static int 1640 ciss_synch_request(struct ciss_request *cr, int timeout) 1641 { 1642 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1643 return(ciss_wait_request(cr, timeout)); 1644 } else { 1645 return(ciss_poll_request(cr, timeout)); 1646 } 1647 } 1648 1649 /************************************************************************ 1650 * Issue a request and poll for completion. 1651 * 1652 * Timeout in milliseconds. 1653 */ 1654 static int 1655 ciss_poll_request(struct ciss_request *cr, int timeout) 1656 { 1657 int error; 1658 1659 debug_called(2); 1660 1661 cr->cr_flags |= CISS_REQ_POLL; 1662 if ((error = ciss_start(cr)) != 0) 1663 return(error); 1664 1665 do { 1666 ciss_done(cr->cr_sc); 1667 if (!(cr->cr_flags & CISS_REQ_POLL)) 1668 return(0); 1669 DELAY(1000); 1670 } while (timeout-- >= 0); 1671 return(EWOULDBLOCK); 1672 } 1673 1674 /************************************************************************ 1675 * Issue a request and sleep waiting for completion. 1676 * 1677 * Timeout in milliseconds. Note that a spurious wakeup will reset 1678 * the timeout. 1679 */ 1680 static int 1681 ciss_wait_request(struct ciss_request *cr, int timeout) 1682 { 1683 int s, error; 1684 1685 debug_called(2); 1686 1687 cr->cr_flags |= CISS_REQ_SLEEP; 1688 if ((error = ciss_start(cr)) != 0) 1689 return(error); 1690 1691 s = splcam(); 1692 while (cr->cr_flags & CISS_REQ_SLEEP) { 1693 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1694 /* 1695 * On wakeup or interruption due to restartable activity, go 1696 * back and check to see if we're done. 1697 */ 1698 if ((error == 0) || (error == ERESTART)) { 1699 error = 0; 1700 continue; 1701 } 1702 /* 1703 * Timeout, interrupted system call, etc. 1704 */ 1705 break; 1706 } 1707 splx(s); 1708 return(error); 1709 } 1710 1711 #if 0 1712 /************************************************************************ 1713 * Abort a request. Note that a potential exists here to race the 1714 * request being completed; the caller must deal with this. 1715 */ 1716 static int 1717 ciss_abort_request(struct ciss_request *ar) 1718 { 1719 struct ciss_request *cr; 1720 struct ciss_command *cc; 1721 struct ciss_message_cdb *cmc; 1722 int error; 1723 1724 debug_called(1); 1725 1726 /* get a request */ 1727 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1728 return(error); 1729 1730 /* build the abort command */ 1731 cc = CISS_FIND_COMMAND(cr); 1732 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1733 cc->header.address.physical.target = 0; 1734 cc->header.address.physical.bus = 0; 1735 cc->cdb.cdb_length = sizeof(*cmc); 1736 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1737 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1738 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1739 cc->cdb.timeout = 30; 1740 1741 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1742 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1743 cmc->type = CISS_MESSAGE_ABORT_TASK; 1744 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1745 1746 /* 1747 * Send the request and wait for a response. If we believe we 1748 * aborted the request OK, clear the flag that indicates it's 1749 * running. 1750 */ 1751 error = ciss_synch_request(cr, 35 * 1000); 1752 if (!error) 1753 error = ciss_report_request(cr, NULL, NULL); 1754 ciss_release_request(cr); 1755 1756 return(error); 1757 } 1758 #endif 1759 1760 1761 /************************************************************************ 1762 * Fetch and initialise a request 1763 */ 1764 static int 1765 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1766 { 1767 struct ciss_request *cr; 1768 1769 debug_called(2); 1770 1771 /* 1772 * Get a request and clean it up. 1773 */ 1774 if ((cr = ciss_dequeue_free(sc)) == NULL) 1775 return(ENOMEM); 1776 1777 cr->cr_data = NULL; 1778 cr->cr_flags = 0; 1779 cr->cr_complete = NULL; 1780 1781 ciss_preen_command(cr); 1782 *crp = cr; 1783 return(0); 1784 } 1785 1786 static void 1787 ciss_preen_command(struct ciss_request *cr) 1788 { 1789 struct ciss_command *cc; 1790 u_int32_t cmdphys; 1791 1792 /* 1793 * Clean up the command structure. 1794 * 1795 * Note that we set up the error_info structure here, since the 1796 * length can be overwritten by any command. 1797 */ 1798 cc = CISS_FIND_COMMAND(cr); 1799 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1800 cc->header.sg_total = 0; 1801 cc->header.host_tag = cr->cr_tag << 2; 1802 cc->header.host_tag_zeroes = 0; 1803 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1804 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1805 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1806 1807 } 1808 1809 /************************************************************************ 1810 * Release a request to the free list. 1811 */ 1812 static void 1813 ciss_release_request(struct ciss_request *cr) 1814 { 1815 struct ciss_softc *sc; 1816 1817 debug_called(2); 1818 1819 sc = cr->cr_sc; 1820 1821 /* release the request to the free queue */ 1822 ciss_requeue_free(cr); 1823 } 1824 1825 /************************************************************************ 1826 * Allocate a request that will be used to send a BMIC command. Do some 1827 * of the common setup here to avoid duplicating it everywhere else. 1828 */ 1829 static int 1830 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1831 int opcode, void **bufp, size_t bufsize) 1832 { 1833 struct ciss_request *cr; 1834 struct ciss_command *cc; 1835 struct ciss_bmic_cdb *cbc; 1836 void *buf; 1837 int error; 1838 int dataout; 1839 1840 debug_called(2); 1841 1842 cr = NULL; 1843 buf = NULL; 1844 1845 /* 1846 * Get a request. 1847 */ 1848 if ((error = ciss_get_request(sc, &cr)) != 0) 1849 goto out; 1850 1851 /* 1852 * Allocate data storage if requested, determine the data direction. 1853 */ 1854 dataout = 0; 1855 if ((bufsize > 0) && (bufp != NULL)) { 1856 if (*bufp == NULL) { 1857 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1858 } else { 1859 buf = *bufp; 1860 dataout = 1; /* we are given a buffer, so we are writing */ 1861 } 1862 } 1863 1864 /* 1865 * Build a CISS BMIC command to get the logical drive ID. 1866 */ 1867 cr->cr_data = buf; 1868 cr->cr_length = bufsize; 1869 if (!dataout) 1870 cr->cr_flags = CISS_REQ_DATAIN; 1871 1872 cc = CISS_FIND_COMMAND(cr); 1873 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1874 cc->header.address.physical.bus = 0; 1875 cc->header.address.physical.target = 0; 1876 cc->cdb.cdb_length = sizeof(*cbc); 1877 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1878 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1879 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1880 cc->cdb.timeout = 0; 1881 1882 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1883 bzero(cbc, sizeof(*cbc)); 1884 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1885 cbc->bmic_opcode = opcode; 1886 cbc->size = htons((u_int16_t)bufsize); 1887 1888 out: 1889 if (error) { 1890 if (cr != NULL) 1891 ciss_release_request(cr); 1892 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1893 free(buf, CISS_MALLOC_CLASS); 1894 } else { 1895 *crp = cr; 1896 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1897 *bufp = buf; 1898 } 1899 return(error); 1900 } 1901 1902 /************************************************************************ 1903 * Handle a command passed in from userspace. 1904 */ 1905 static int 1906 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1907 { 1908 struct ciss_request *cr; 1909 struct ciss_command *cc; 1910 struct ciss_error_info *ce; 1911 int error; 1912 1913 debug_called(1); 1914 1915 cr = NULL; 1916 1917 /* 1918 * Get a request. 1919 */ 1920 if ((error = ciss_get_request(sc, &cr)) != 0) 1921 goto out; 1922 cc = CISS_FIND_COMMAND(cr); 1923 1924 /* 1925 * Allocate an in-kernel databuffer if required, copy in user data. 1926 */ 1927 cr->cr_length = ioc->buf_size; 1928 if (ioc->buf_size > 0) { 1929 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1930 error = ENOMEM; 1931 goto out; 1932 } 1933 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1934 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1935 goto out; 1936 } 1937 } 1938 1939 /* 1940 * Build the request based on the user command. 1941 */ 1942 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1943 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1944 1945 /* XXX anything else to populate here? */ 1946 1947 /* 1948 * Run the command. 1949 */ 1950 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1951 debug(0, "request failed - %d", error); 1952 goto out; 1953 } 1954 1955 /* 1956 * Copy the results back to the user. 1957 */ 1958 ce = (struct ciss_error_info *)&(cc->sg[0]); 1959 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1960 if ((ioc->buf_size > 0) && 1961 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1962 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1963 goto out; 1964 } 1965 1966 /* done OK */ 1967 error = 0; 1968 1969 out: 1970 if ((cr != NULL) && (cr->cr_data != NULL)) 1971 free(cr->cr_data, CISS_MALLOC_CLASS); 1972 if (cr != NULL) 1973 ciss_release_request(cr); 1974 return(error); 1975 } 1976 1977 /************************************************************************ 1978 * Map a request into bus-visible space, initialise the scatter/gather 1979 * list. 1980 */ 1981 static int 1982 ciss_map_request(struct ciss_request *cr) 1983 { 1984 struct ciss_softc *sc; 1985 1986 debug_called(2); 1987 1988 sc = cr->cr_sc; 1989 1990 /* check that mapping is necessary */ 1991 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1992 return(0); 1993 1994 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1995 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 1996 1997 if (cr->cr_flags & CISS_REQ_DATAIN) 1998 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 1999 if (cr->cr_flags & CISS_REQ_DATAOUT) 2000 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2001 2002 cr->cr_flags |= CISS_REQ_MAPPED; 2003 return(0); 2004 } 2005 2006 static void 2007 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2008 { 2009 struct ciss_command *cc; 2010 int i; 2011 2012 debug_called(2); 2013 2014 cc = (struct ciss_command *)arg; 2015 for (i = 0; i < nseg; i++) { 2016 cc->sg[i].address = segs[i].ds_addr; 2017 cc->sg[i].length = segs[i].ds_len; 2018 cc->sg[i].extension = 0; 2019 } 2020 /* we leave the s/g table entirely within the command */ 2021 cc->header.sg_in_list = nseg; 2022 cc->header.sg_total = nseg; 2023 } 2024 2025 /************************************************************************ 2026 * Unmap a request from bus-visible space. 2027 */ 2028 static void 2029 ciss_unmap_request(struct ciss_request *cr) 2030 { 2031 struct ciss_softc *sc; 2032 2033 debug_called(2); 2034 2035 sc = cr->cr_sc; 2036 2037 /* check that unmapping is necessary */ 2038 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2039 return; 2040 2041 if (cr->cr_flags & CISS_REQ_DATAIN) 2042 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2043 if (cr->cr_flags & CISS_REQ_DATAOUT) 2044 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2045 2046 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2047 cr->cr_flags &= ~CISS_REQ_MAPPED; 2048 } 2049 2050 /************************************************************************ 2051 * Attach the driver to CAM. 2052 * 2053 * We put all the logical drives on a single SCSI bus. 2054 */ 2055 static int 2056 ciss_cam_init(struct ciss_softc *sc) 2057 { 2058 2059 debug_called(1); 2060 2061 /* 2062 * Allocate a devq. We can reuse this for the masked physical 2063 * devices if we decide to export these as well. 2064 */ 2065 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2066 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2067 return(ENOMEM); 2068 } 2069 2070 /* 2071 * Create a SIM. 2072 */ 2073 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2074 device_get_unit(sc->ciss_dev), 2075 sc->ciss_max_requests - 2, 2076 1, 2077 sc->ciss_cam_devq)) == NULL) { 2078 ciss_printf(sc, "can't allocate CAM SIM\n"); 2079 return(ENOMEM); 2080 } 2081 2082 /* 2083 * Register bus 0 (the 'logical drives' bus) with this SIM. 2084 */ 2085 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2086 ciss_printf(sc, "can't register SCSI bus 0\n"); 2087 return(ENXIO); 2088 } 2089 2090 /* 2091 * Initiate a rescan of the bus. 2092 */ 2093 ciss_cam_rescan_all(sc); 2094 2095 return(0); 2096 } 2097 2098 /************************************************************************ 2099 * Initiate a rescan of the 'logical devices' SIM 2100 */ 2101 static void 2102 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2103 { 2104 union ccb *ccb; 2105 2106 debug_called(1); 2107 2108 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2109 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2110 return; 2111 } 2112 2113 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2114 != CAM_REQ_CMP) { 2115 ciss_printf(sc, "rescan failed (can't create path)\n"); 2116 return; 2117 } 2118 2119 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2120 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2121 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2122 ccb->crcn.flags = CAM_FLAG_NONE; 2123 xpt_action(ccb); 2124 2125 /* scan is now in progress */ 2126 } 2127 2128 static void 2129 ciss_cam_rescan_all(struct ciss_softc *sc) 2130 { 2131 return(ciss_cam_rescan_target(sc, 0)); 2132 } 2133 2134 static void 2135 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2136 { 2137 xpt_free_path(ccb->ccb_h.path); 2138 free(ccb, M_TEMP); 2139 } 2140 2141 /************************************************************************ 2142 * Handle requests coming from CAM 2143 */ 2144 static void 2145 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2146 { 2147 struct ciss_softc *sc; 2148 struct ccb_scsiio *csio; 2149 int target; 2150 2151 sc = cam_sim_softc(sim); 2152 csio = (struct ccb_scsiio *)&ccb->csio; 2153 target = csio->ccb_h.target_id; 2154 2155 switch (ccb->ccb_h.func_code) { 2156 2157 /* perform SCSI I/O */ 2158 case XPT_SCSI_IO: 2159 if (!ciss_cam_action_io(sim, csio)) 2160 return; 2161 break; 2162 2163 /* perform geometry calculations */ 2164 case XPT_CALC_GEOMETRY: 2165 { 2166 struct ccb_calc_geometry *ccg = &ccb->ccg; 2167 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2168 2169 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2170 2171 /* 2172 * Use the cached geometry settings unless the fault tolerance 2173 * is invalid. 2174 */ 2175 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2176 u_int32_t secs_per_cylinder; 2177 2178 ccg->heads = 255; 2179 ccg->secs_per_track = 32; 2180 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2181 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2182 } else { 2183 ccg->heads = ld->cl_geometry.heads; 2184 ccg->secs_per_track = ld->cl_geometry.sectors; 2185 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2186 } 2187 ccb->ccb_h.status = CAM_REQ_CMP; 2188 break; 2189 } 2190 2191 /* handle path attribute inquiry */ 2192 case XPT_PATH_INQ: 2193 { 2194 struct ccb_pathinq *cpi = &ccb->cpi; 2195 2196 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2197 2198 cpi->version_num = 1; 2199 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2200 cpi->target_sprt = 0; 2201 cpi->hba_misc = 0; 2202 cpi->max_target = CISS_MAX_LOGICAL; 2203 cpi->max_lun = 0; /* 'logical drive' channel only */ 2204 cpi->initiator_id = CISS_MAX_LOGICAL; 2205 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2206 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2207 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2208 cpi->unit_number = cam_sim_unit(sim); 2209 cpi->bus_id = cam_sim_bus(sim); 2210 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2211 ccb->ccb_h.status = CAM_REQ_CMP; 2212 break; 2213 } 2214 2215 case XPT_GET_TRAN_SETTINGS: 2216 { 2217 struct ccb_trans_settings *cts = &ccb->cts; 2218 int bus, target; 2219 2220 bus = cam_sim_bus(sim); 2221 target = cts->ccb_h.target_id; 2222 2223 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2224 cts->valid = 0; 2225 2226 /* disconnect always OK */ 2227 cts->flags |= CCB_TRANS_DISC_ENB; 2228 cts->valid |= CCB_TRANS_DISC_VALID; 2229 2230 cts->ccb_h.status = CAM_REQ_CMP; 2231 break; 2232 } 2233 2234 default: /* we can't do this */ 2235 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2236 ccb->ccb_h.status = CAM_REQ_INVALID; 2237 break; 2238 } 2239 2240 xpt_done(ccb); 2241 } 2242 2243 /************************************************************************ 2244 * Handle a CAM SCSI I/O request. 2245 */ 2246 static int 2247 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2248 { 2249 struct ciss_softc *sc; 2250 int bus, target; 2251 struct ciss_request *cr; 2252 struct ciss_command *cc; 2253 int error; 2254 2255 sc = cam_sim_softc(sim); 2256 bus = cam_sim_bus(sim); 2257 target = csio->ccb_h.target_id; 2258 2259 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2260 2261 /* check for I/O attempt to nonexistent device */ 2262 if ((bus != 0) || 2263 (target > CISS_MAX_LOGICAL) || 2264 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2265 debug(3, " device does not exist"); 2266 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2267 } 2268 2269 /* firmware does not support commands > 10 bytes */ 2270 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2271 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2272 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2273 } 2274 2275 /* check that the CDB pointer is not to a physical address */ 2276 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2277 debug(3, " CDB pointer is to physical address"); 2278 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2279 } 2280 2281 /* if there is data transfer, it must be to/from a virtual address */ 2282 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2283 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2284 debug(3, " data pointer is to physical address"); 2285 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2286 } 2287 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2288 debug(3, " data has premature s/g setup"); 2289 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2290 } 2291 } 2292 2293 /* abandon aborted ccbs or those that have failed validation */ 2294 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2295 debug(3, "abandoning CCB due to abort/validation failure"); 2296 return(EINVAL); 2297 } 2298 2299 /* handle emulation of some SCSI commands ourself */ 2300 if (ciss_cam_emulate(sc, csio)) 2301 return(0); 2302 2303 /* 2304 * Get a request to manage this command. If we can't, return the 2305 * ccb, freeze the queue and flag so that we unfreeze it when a 2306 * request completes. 2307 */ 2308 if ((error = ciss_get_request(sc, &cr)) != 0) { 2309 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2310 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2311 return(error); 2312 } 2313 2314 /* 2315 * Build the command. 2316 */ 2317 cc = CISS_FIND_COMMAND(cr); 2318 cr->cr_data = csio->data_ptr; 2319 cr->cr_length = csio->dxfer_len; 2320 cr->cr_complete = ciss_cam_complete; 2321 cr->cr_private = csio; 2322 2323 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2324 cc->header.address.logical.lun = target; 2325 cc->cdb.cdb_length = csio->cdb_len; 2326 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2327 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2328 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2329 cr->cr_flags = CISS_REQ_DATAOUT; 2330 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2331 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2332 cr->cr_flags = CISS_REQ_DATAIN; 2333 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2334 } else { 2335 cr->cr_flags = 0; 2336 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2337 } 2338 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2339 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2340 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2341 } else { 2342 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2343 } 2344 2345 /* 2346 * Submit the request to the adapter. 2347 * 2348 * Note that this may fail if we're unable to map the request (and 2349 * if we ever learn a transport layer other than simple, may fail 2350 * if the adapter rejects the command). 2351 */ 2352 if ((error = ciss_start(cr)) != 0) { 2353 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2354 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2355 ciss_release_request(cr); 2356 return(error); 2357 } 2358 2359 return(0); 2360 } 2361 2362 /************************************************************************ 2363 * Emulate SCSI commands the adapter doesn't handle as we might like. 2364 */ 2365 static int 2366 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2367 { 2368 int target; 2369 u_int8_t opcode; 2370 2371 2372 target = csio->ccb_h.target_id; 2373 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2374 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2375 2376 /* 2377 * Handle requests for volumes that don't exist. A selection timeout 2378 * is slightly better than an illegal request. Other errors might be 2379 * better. 2380 */ 2381 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2382 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2383 xpt_done((union ccb *)csio); 2384 return(1); 2385 } 2386 2387 /* 2388 * Handle requests for volumes that exist but are offline. 2389 * 2390 * I/O operations should fail, everything else should work. 2391 */ 2392 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2393 switch(opcode) { 2394 case READ_6: 2395 case READ_10: 2396 case READ_12: 2397 case WRITE_6: 2398 case WRITE_10: 2399 case WRITE_12: 2400 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2401 xpt_done((union ccb *)csio); 2402 return(1); 2403 } 2404 } 2405 2406 2407 /* if we have to fake Synchronise Cache */ 2408 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2409 2410 /* 2411 * If this is a Synchronise Cache command, typically issued when 2412 * a device is closed, flush the adapter and complete now. 2413 */ 2414 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2415 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2416 ciss_flush_adapter(sc); 2417 csio->ccb_h.status = CAM_REQ_CMP; 2418 xpt_done((union ccb *)csio); 2419 return(1); 2420 } 2421 } 2422 2423 return(0); 2424 } 2425 2426 /************************************************************************ 2427 * Check for possibly-completed commands. 2428 */ 2429 static void 2430 ciss_cam_poll(struct cam_sim *sim) 2431 { 2432 struct ciss_softc *sc = cam_sim_softc(sim); 2433 2434 debug_called(2); 2435 2436 ciss_done(sc); 2437 } 2438 2439 /************************************************************************ 2440 * Handle completion of a command - pass results back through the CCB 2441 */ 2442 static void 2443 ciss_cam_complete(struct ciss_request *cr) 2444 { 2445 struct ciss_softc *sc; 2446 struct ciss_command *cc; 2447 struct ciss_error_info *ce; 2448 struct ccb_scsiio *csio; 2449 int scsi_status; 2450 int command_status; 2451 2452 debug_called(2); 2453 2454 sc = cr->cr_sc; 2455 cc = CISS_FIND_COMMAND(cr); 2456 ce = (struct ciss_error_info *)&(cc->sg[0]); 2457 csio = (struct ccb_scsiio *)cr->cr_private; 2458 2459 /* 2460 * Extract status values from request. 2461 */ 2462 ciss_report_request(cr, &command_status, &scsi_status); 2463 csio->scsi_status = scsi_status; 2464 2465 /* 2466 * Handle specific SCSI status values. 2467 */ 2468 switch(scsi_status) { 2469 /* no status due to adapter error */ 2470 case -1: 2471 debug(0, "adapter error"); 2472 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2473 break; 2474 2475 /* no status due to command completed OK */ 2476 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2477 debug(2, "SCSI_STATUS_OK"); 2478 csio->ccb_h.status = CAM_REQ_CMP; 2479 break; 2480 2481 /* check condition, sense data included */ 2482 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2483 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2484 ce->sense_length, ce->residual_count); 2485 bzero(&csio->sense_data, SSD_FULL_SIZE); 2486 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2487 csio->sense_len = ce->sense_length; 2488 csio->resid = ce->residual_count; 2489 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2490 #ifdef CISS_DEBUG 2491 { 2492 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2493 debug(0, "sense key %x", sns->flags & SSD_KEY); 2494 } 2495 #endif 2496 break; 2497 2498 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2499 debug(0, "SCSI_STATUS_BUSY"); 2500 csio->ccb_h.status = CAM_SCSI_BUSY; 2501 break; 2502 2503 default: 2504 debug(0, "unknown status 0x%x", csio->scsi_status); 2505 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2506 break; 2507 } 2508 2509 /* handle post-command fixup */ 2510 ciss_cam_complete_fixup(sc, csio); 2511 2512 /* tell CAM we're ready for more commands */ 2513 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2514 2515 xpt_done((union ccb *)csio); 2516 ciss_release_request(cr); 2517 } 2518 2519 /******************************************************************************** 2520 * Fix up the result of some commands here. 2521 */ 2522 static void 2523 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2524 { 2525 struct scsi_inquiry_data *inq; 2526 struct ciss_ldrive *cl; 2527 int target; 2528 2529 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2530 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2531 2532 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2533 target = csio->ccb_h.target_id; 2534 cl = &sc->ciss_logical[target]; 2535 2536 padstr(inq->vendor, "COMPAQ", 8); 2537 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2538 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2539 } 2540 } 2541 2542 2543 /******************************************************************************** 2544 * Find a peripheral attached at (target) 2545 */ 2546 static struct cam_periph * 2547 ciss_find_periph(struct ciss_softc *sc, int target) 2548 { 2549 struct cam_periph *periph; 2550 struct cam_path *path; 2551 int status; 2552 2553 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2554 if (status == CAM_REQ_CMP) { 2555 periph = cam_periph_find(path, NULL); 2556 xpt_free_path(path); 2557 } else { 2558 periph = NULL; 2559 } 2560 return(periph); 2561 } 2562 2563 /******************************************************************************** 2564 * Name the device at (target) 2565 * 2566 * XXX is this strictly correct? 2567 */ 2568 int 2569 ciss_name_device(struct ciss_softc *sc, int target) 2570 { 2571 struct cam_periph *periph; 2572 2573 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2574 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2575 return(0); 2576 } 2577 sc->ciss_logical[target].cl_name[0] = 0; 2578 return(ENOENT); 2579 } 2580 2581 /************************************************************************ 2582 * Periodic status monitoring. 2583 */ 2584 static void 2585 ciss_periodic(void *arg) 2586 { 2587 struct ciss_softc *sc; 2588 2589 debug_called(1); 2590 2591 sc = (struct ciss_softc *)arg; 2592 2593 /* 2594 * Check the adapter heartbeat. 2595 */ 2596 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2597 sc->ciss_heart_attack++; 2598 debug(0, "adapter heart attack in progress 0x%x/%d", 2599 sc->ciss_heartbeat, sc->ciss_heart_attack); 2600 if (sc->ciss_heart_attack == 3) { 2601 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2602 /* XXX should reset adapter here */ 2603 } 2604 } else { 2605 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2606 sc->ciss_heart_attack = 0; 2607 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2608 } 2609 2610 /* 2611 * If the notify event request has died for some reason, or has 2612 * not started yet, restart it. 2613 */ 2614 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2615 debug(0, "(re)starting Event Notify chain"); 2616 ciss_notify_event(sc); 2617 } 2618 2619 /* 2620 * Reschedule. 2621 */ 2622 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2623 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 2624 } 2625 2626 /************************************************************************ 2627 * Request a notification response from the adapter. 2628 * 2629 * If (cr) is NULL, this is the first request of the adapter, so 2630 * reset the adapter's message pointer and start with the oldest 2631 * message available. 2632 */ 2633 static void 2634 ciss_notify_event(struct ciss_softc *sc) 2635 { 2636 struct ciss_request *cr; 2637 struct ciss_command *cc; 2638 struct ciss_notify_cdb *cnc; 2639 int error; 2640 2641 debug_called(1); 2642 2643 cr = sc->ciss_periodic_notify; 2644 2645 /* get a request if we don't already have one */ 2646 if (cr == NULL) { 2647 if ((error = ciss_get_request(sc, &cr)) != 0) { 2648 debug(0, "can't get notify event request"); 2649 goto out; 2650 } 2651 sc->ciss_periodic_notify = cr; 2652 cr->cr_complete = ciss_notify_complete; 2653 debug(1, "acquired request %d", cr->cr_tag); 2654 } 2655 2656 /* 2657 * Get a databuffer if we don't already have one, note that the 2658 * adapter command wants a larger buffer than the actual 2659 * structure. 2660 */ 2661 if (cr->cr_data == NULL) { 2662 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2663 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2664 } 2665 2666 /* re-setup the request's command (since we never release it) XXX overkill*/ 2667 ciss_preen_command(cr); 2668 2669 /* (re)build the notify event command */ 2670 cc = CISS_FIND_COMMAND(cr); 2671 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2672 cc->header.address.physical.bus = 0; 2673 cc->header.address.physical.target = 0; 2674 2675 cc->cdb.cdb_length = sizeof(*cnc); 2676 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2677 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2678 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2679 cc->cdb.timeout = 0; /* no timeout, we hope */ 2680 2681 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2682 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2683 cnc->opcode = CISS_OPCODE_READ; 2684 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2685 cnc->timeout = 0; /* no timeout, we hope */ 2686 cnc->synchronous = 0; 2687 cnc->ordered = 0; 2688 cnc->seek_to_oldest = 0; 2689 cnc->new_only = 0; 2690 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2691 2692 /* submit the request */ 2693 error = ciss_start(cr); 2694 2695 out: 2696 if (error) { 2697 if (cr != NULL) { 2698 if (cr->cr_data != NULL) 2699 free(cr->cr_data, CISS_MALLOC_CLASS); 2700 ciss_release_request(cr); 2701 } 2702 sc->ciss_periodic_notify = NULL; 2703 debug(0, "can't submit notify event request"); 2704 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2705 } else { 2706 debug(1, "notify event submitted"); 2707 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2708 } 2709 } 2710 2711 static void 2712 ciss_notify_complete(struct ciss_request *cr) 2713 { 2714 struct ciss_command *cc; 2715 struct ciss_notify *cn; 2716 struct ciss_softc *sc; 2717 int scsi_status; 2718 int command_status; 2719 2720 debug_called(1); 2721 2722 cc = CISS_FIND_COMMAND(cr); 2723 cn = (struct ciss_notify *)cr->cr_data; 2724 sc = cr->cr_sc; 2725 2726 /* 2727 * Report request results, decode status. 2728 */ 2729 ciss_report_request(cr, &command_status, &scsi_status); 2730 2731 /* 2732 * Abort the chain on a fatal error. 2733 * 2734 * XXX which of these are actually errors? 2735 */ 2736 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2737 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2738 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2739 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2740 ciss_name_command_status(command_status)); 2741 ciss_release_request(cr); 2742 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2743 return; 2744 } 2745 2746 /* 2747 * If the adapter gave us a text message, print it. 2748 */ 2749 if (cn->message[0] != 0) 2750 ciss_printf(sc, "*** %.80s\n", cn->message); 2751 2752 debug(0, "notify event class %d subclass %d detail %d", 2753 cn->class, cn->subclass, cn->detail); 2754 2755 /* 2756 * If there's room, save the event for a user-level tool. 2757 */ 2758 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2759 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2760 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2761 } 2762 2763 /* 2764 * Some events are directly of interest to us. 2765 */ 2766 switch (cn->class) { 2767 case CISS_NOTIFY_LOGICAL: 2768 ciss_notify_logical(sc, cn); 2769 break; 2770 case CISS_NOTIFY_PHYSICAL: 2771 ciss_notify_physical(sc, cn); 2772 break; 2773 } 2774 2775 /* 2776 * If the response indicates that the notifier has been aborted, 2777 * release the notifier command. 2778 */ 2779 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2780 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2781 (cn->detail == 1)) { 2782 debug(0, "notifier exiting"); 2783 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2784 ciss_release_request(cr); 2785 sc->ciss_periodic_notify = NULL; 2786 wakeup(&sc->ciss_periodic_notify); 2787 } 2788 2789 /* 2790 * Send a new notify event command, if we're not aborting. 2791 */ 2792 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2793 ciss_notify_event(sc); 2794 } 2795 } 2796 2797 /************************************************************************ 2798 * Abort the Notify Event chain. 2799 * 2800 * Note that we can't just abort the command in progress; we have to 2801 * explicitly issue an Abort Notify Event command in order for the 2802 * adapter to clean up correctly. 2803 * 2804 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2805 * the chain will not restart itself. 2806 */ 2807 static int 2808 ciss_notify_abort(struct ciss_softc *sc) 2809 { 2810 struct ciss_request *cr; 2811 struct ciss_command *cc; 2812 struct ciss_notify_cdb *cnc; 2813 int error, s, command_status, scsi_status; 2814 2815 debug_called(1); 2816 2817 cr = NULL; 2818 error = 0; 2819 2820 /* verify that there's an outstanding command */ 2821 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2822 goto out; 2823 2824 /* get a command to issue the abort with */ 2825 if ((error = ciss_get_request(sc, &cr))) 2826 goto out; 2827 2828 /* get a buffer for the result */ 2829 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2830 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2831 2832 /* build the CDB */ 2833 cc = CISS_FIND_COMMAND(cr); 2834 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2835 cc->header.address.physical.bus = 0; 2836 cc->header.address.physical.target = 0; 2837 cc->cdb.cdb_length = sizeof(*cnc); 2838 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2839 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2840 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2841 cc->cdb.timeout = 0; /* no timeout, we hope */ 2842 2843 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2844 bzero(cnc, sizeof(*cnc)); 2845 cnc->opcode = CISS_OPCODE_WRITE; 2846 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2847 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2848 2849 ciss_print_request(cr); 2850 2851 /* 2852 * Submit the request and wait for it to complete. 2853 */ 2854 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2855 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2856 goto out; 2857 } 2858 2859 /* 2860 * Check response. 2861 */ 2862 ciss_report_request(cr, &command_status, &scsi_status); 2863 switch(command_status) { 2864 case CISS_CMD_STATUS_SUCCESS: 2865 break; 2866 case CISS_CMD_STATUS_INVALID_COMMAND: 2867 /* 2868 * Some older adapters don't support the CISS version of this 2869 * command. Fall back to using the BMIC version. 2870 */ 2871 error = ciss_notify_abort_bmic(sc); 2872 if (error != 0) 2873 goto out; 2874 break; 2875 2876 case CISS_CMD_STATUS_TARGET_STATUS: 2877 /* 2878 * This can happen if the adapter thinks there wasn't an outstanding 2879 * Notify Event command but we did. We clean up here. 2880 */ 2881 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2882 if (sc->ciss_periodic_notify != NULL) 2883 ciss_release_request(sc->ciss_periodic_notify); 2884 error = 0; 2885 goto out; 2886 } 2887 /* FALLTHROUGH */ 2888 2889 default: 2890 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2891 ciss_name_command_status(command_status)); 2892 error = EIO; 2893 goto out; 2894 } 2895 2896 /* 2897 * Sleep waiting for the notifier command to complete. Note 2898 * that if it doesn't, we may end up in a bad situation, since 2899 * the adapter may deliver it later. Also note that the adapter 2900 * requires the Notify Event command to be cancelled in order to 2901 * maintain internal bookkeeping. 2902 */ 2903 s = splcam(); 2904 while (sc->ciss_periodic_notify != NULL) { 2905 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2906 if (error == EWOULDBLOCK) { 2907 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2908 break; 2909 } 2910 } 2911 splx(s); 2912 2913 out: 2914 /* release the cancel request */ 2915 if (cr != NULL) { 2916 if (cr->cr_data != NULL) 2917 free(cr->cr_data, CISS_MALLOC_CLASS); 2918 ciss_release_request(cr); 2919 } 2920 if (error == 0) 2921 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2922 return(error); 2923 } 2924 2925 /************************************************************************ 2926 * Abort the Notify Event chain using a BMIC command. 2927 */ 2928 static int 2929 ciss_notify_abort_bmic(struct ciss_softc *sc) 2930 { 2931 struct ciss_request *cr; 2932 int error, command_status; 2933 2934 debug_called(1); 2935 2936 cr = NULL; 2937 error = 0; 2938 2939 /* verify that there's an outstanding command */ 2940 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2941 goto out; 2942 2943 /* 2944 * Build a BMIC command to cancel the Notify on Event command. 2945 * 2946 * Note that we are sending a CISS opcode here. Odd. 2947 */ 2948 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2949 NULL, 0)) != 0) 2950 goto out; 2951 2952 /* 2953 * Submit the request and wait for it to complete. 2954 */ 2955 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2956 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2957 goto out; 2958 } 2959 2960 /* 2961 * Check response. 2962 */ 2963 ciss_report_request(cr, &command_status, NULL); 2964 switch(command_status) { 2965 case CISS_CMD_STATUS_SUCCESS: 2966 break; 2967 default: 2968 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2969 ciss_name_command_status(command_status)); 2970 error = EIO; 2971 goto out; 2972 } 2973 2974 out: 2975 if (cr != NULL) 2976 ciss_release_request(cr); 2977 return(error); 2978 } 2979 2980 /************************************************************************ 2981 * Handle a notify event relating to the status of a logical drive. 2982 * 2983 * XXX need to be able to defer some of these to properly handle 2984 * calling the "ID Physical drive" command, unless the 'extended' 2985 * drive IDs are always in BIG_MAP format. 2986 */ 2987 static void 2988 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 2989 { 2990 struct ciss_ldrive *ld; 2991 int ostatus; 2992 2993 debug_called(2); 2994 2995 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 2996 2997 switch (cn->subclass) { 2998 case CISS_NOTIFY_LOGICAL_STATUS: 2999 switch (cn->detail) { 3000 case 0: 3001 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3002 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3003 cn->data.logical_status.logical_drive, ld->cl_name, 3004 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3005 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3006 cn->data.logical_status.spare_state, 3007 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3008 3009 /* 3010 * Update our idea of the drive's status. 3011 */ 3012 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3013 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3014 if (ld->cl_lstatus != NULL) 3015 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3016 3017 #if 0 3018 /* 3019 * Have CAM rescan the drive if its status has changed. 3020 */ 3021 if (ostatus != ld->cl_status) 3022 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3023 #endif 3024 3025 break; 3026 3027 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3028 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3029 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3030 cn->data.logical_status.logical_drive, ld->cl_name); 3031 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3032 break; 3033 3034 case 2: 3035 case 3: 3036 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3037 cn->data.rebuild_aborted.logical_drive, 3038 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3039 (cn->detail == 2) ? "read" : "write"); 3040 break; 3041 } 3042 break; 3043 3044 case CISS_NOTIFY_LOGICAL_ERROR: 3045 if (cn->detail == 0) { 3046 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3047 cn->data.io_error.logical_drive, 3048 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3049 cn->data.io_error.failure_bus, 3050 cn->data.io_error.failure_drive); 3051 /* XXX should we take the drive down at this point, or will we be told? */ 3052 } 3053 break; 3054 3055 case CISS_NOTIFY_LOGICAL_SURFACE: 3056 if (cn->detail == 0) 3057 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3058 cn->data.consistency_completed.logical_drive, 3059 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3060 break; 3061 } 3062 } 3063 3064 /************************************************************************ 3065 * Handle a notify event relating to the status of a physical drive. 3066 */ 3067 static void 3068 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3069 { 3070 3071 } 3072 3073 /************************************************************************ 3074 * Print a request. 3075 */ 3076 static void 3077 ciss_print_request(struct ciss_request *cr) 3078 { 3079 struct ciss_softc *sc; 3080 struct ciss_command *cc; 3081 int i; 3082 3083 sc = cr->cr_sc; 3084 cc = CISS_FIND_COMMAND(cr); 3085 3086 ciss_printf(sc, "REQUEST @ %p\n", cr); 3087 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3088 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3089 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3090 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3091 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3092 switch(cc->header.address.mode.mode) { 3093 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3094 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3095 ciss_printf(sc, " physical bus %d target %d\n", 3096 cc->header.address.physical.bus, cc->header.address.physical.target); 3097 break; 3098 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3099 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3100 break; 3101 } 3102 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3103 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3104 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3105 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3106 cc->cdb.cdb_length, 3107 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3108 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3109 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3110 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3111 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3112 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3113 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3114 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3115 3116 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3117 /* XXX print error info */ 3118 } else { 3119 /* since we don't use chained s/g, don't support it here */ 3120 for (i = 0; i < cc->header.sg_in_list; i++) { 3121 if ((i % 4) == 0) 3122 ciss_printf(sc, " "); 3123 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3124 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3125 printf("\n"); 3126 } 3127 } 3128 } 3129 3130 /************************************************************************ 3131 * Print information about the status of a logical drive. 3132 */ 3133 static void 3134 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3135 { 3136 int bus, target, i; 3137 3138 if (ld->cl_lstatus == NULL) { 3139 printf("does not exist\n"); 3140 return; 3141 } 3142 3143 /* print drive status */ 3144 switch(ld->cl_lstatus->status) { 3145 case CISS_LSTATUS_OK: 3146 printf("online\n"); 3147 break; 3148 case CISS_LSTATUS_INTERIM_RECOVERY: 3149 printf("in interim recovery mode\n"); 3150 break; 3151 case CISS_LSTATUS_READY_RECOVERY: 3152 printf("ready to begin recovery\n"); 3153 break; 3154 case CISS_LSTATUS_RECOVERING: 3155 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3156 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3157 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3158 bus, target, ld->cl_lstatus->blocks_to_recover); 3159 break; 3160 case CISS_LSTATUS_EXPANDING: 3161 printf("being expanded, %u blocks remaining\n", 3162 ld->cl_lstatus->blocks_to_recover); 3163 break; 3164 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3165 printf("queued for expansion\n"); 3166 break; 3167 case CISS_LSTATUS_FAILED: 3168 printf("queued for expansion\n"); 3169 break; 3170 case CISS_LSTATUS_WRONG_PDRIVE: 3171 printf("wrong physical drive inserted\n"); 3172 break; 3173 case CISS_LSTATUS_MISSING_PDRIVE: 3174 printf("missing a needed physical drive\n"); 3175 break; 3176 case CISS_LSTATUS_BECOMING_READY: 3177 printf("becoming ready\n"); 3178 break; 3179 } 3180 3181 /* print failed physical drives */ 3182 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3183 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3184 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3185 if (bus == -1) 3186 continue; 3187 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3188 ld->cl_lstatus->drive_failure_map[i]); 3189 } 3190 } 3191 3192 #ifdef CISS_DEBUG 3193 /************************************************************************ 3194 * Print information about the controller/driver. 3195 */ 3196 static void 3197 ciss_print_adapter(struct ciss_softc *sc) 3198 { 3199 int i; 3200 3201 ciss_printf(sc, "ADAPTER:\n"); 3202 for (i = 0; i < CISSQ_COUNT; i++) { 3203 ciss_printf(sc, "%s %d/%d\n", 3204 i == 0 ? "free" : 3205 i == 1 ? "busy" : "complete", 3206 sc->ciss_qstat[i].q_length, 3207 sc->ciss_qstat[i].q_max); 3208 } 3209 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3210 ciss_printf(sc, "notify_head/tail %d/%d\n", 3211 sc->ciss_notify_head, sc->ciss_notify_tail); 3212 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3213 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3214 3215 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3216 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3217 ciss_print_ldrive(sc, sc->ciss_logical + i); 3218 } 3219 3220 for (i = 1; i < sc->ciss_max_requests; i++) 3221 ciss_print_request(sc->ciss_request + i); 3222 3223 } 3224 3225 /* DDB hook */ 3226 void 3227 ciss_print0(void) 3228 { 3229 struct ciss_softc *sc; 3230 3231 sc = devclass_get_softc(devclass_find("ciss"), 0); 3232 if (sc == NULL) { 3233 printf("no ciss controllers\n"); 3234 } else { 3235 ciss_print_adapter(sc); 3236 } 3237 } 3238 #endif 3239 3240 /************************************************************************ 3241 * Return a name for a logical drive status value. 3242 */ 3243 static const char * 3244 ciss_name_ldrive_status(int status) 3245 { 3246 switch (status) { 3247 case CISS_LSTATUS_OK: 3248 return("OK"); 3249 case CISS_LSTATUS_FAILED: 3250 return("failed"); 3251 case CISS_LSTATUS_NOT_CONFIGURED: 3252 return("not configured"); 3253 case CISS_LSTATUS_INTERIM_RECOVERY: 3254 return("interim recovery"); 3255 case CISS_LSTATUS_READY_RECOVERY: 3256 return("ready for recovery"); 3257 case CISS_LSTATUS_RECOVERING: 3258 return("recovering"); 3259 case CISS_LSTATUS_WRONG_PDRIVE: 3260 return("wrong physical drive inserted"); 3261 case CISS_LSTATUS_MISSING_PDRIVE: 3262 return("missing physical drive"); 3263 case CISS_LSTATUS_EXPANDING: 3264 return("expanding"); 3265 case CISS_LSTATUS_BECOMING_READY: 3266 return("becoming ready"); 3267 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3268 return("queued for expansion"); 3269 } 3270 return("unknown status"); 3271 } 3272 3273 /************************************************************************ 3274 * Return an online/offline/nonexistent value for a logical drive 3275 * status value. 3276 */ 3277 static int 3278 ciss_decode_ldrive_status(int status) 3279 { 3280 switch(status) { 3281 case CISS_LSTATUS_NOT_CONFIGURED: 3282 return(CISS_LD_NONEXISTENT); 3283 3284 case CISS_LSTATUS_OK: 3285 case CISS_LSTATUS_INTERIM_RECOVERY: 3286 case CISS_LSTATUS_READY_RECOVERY: 3287 case CISS_LSTATUS_RECOVERING: 3288 case CISS_LSTATUS_EXPANDING: 3289 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3290 return(CISS_LD_ONLINE); 3291 3292 case CISS_LSTATUS_FAILED: 3293 case CISS_LSTATUS_WRONG_PDRIVE: 3294 case CISS_LSTATUS_MISSING_PDRIVE: 3295 case CISS_LSTATUS_BECOMING_READY: 3296 default: 3297 return(CISS_LD_OFFLINE); 3298 } 3299 } 3300 3301 3302 /************************************************************************ 3303 * Return a name for a logical drive's organisation. 3304 */ 3305 static const char * 3306 ciss_name_ldrive_org(int org) 3307 { 3308 switch(org) { 3309 case CISS_LDRIVE_RAID0: 3310 return("RAID 0"); 3311 case CISS_LDRIVE_RAID1: 3312 return("RAID 1"); 3313 case CISS_LDRIVE_RAID4: 3314 return("RAID 4"); 3315 case CISS_LDRIVE_RAID5: 3316 return("RAID 5"); 3317 } 3318 return("unkown"); 3319 } 3320 3321 /************************************************************************ 3322 * Return a name for a command status value. 3323 */ 3324 static const char * 3325 ciss_name_command_status(int status) 3326 { 3327 switch(status) { 3328 case CISS_CMD_STATUS_SUCCESS: 3329 return("success"); 3330 case CISS_CMD_STATUS_TARGET_STATUS: 3331 return("target status"); 3332 case CISS_CMD_STATUS_DATA_UNDERRUN: 3333 return("data underrun"); 3334 case CISS_CMD_STATUS_DATA_OVERRUN: 3335 return("data overrun"); 3336 case CISS_CMD_STATUS_INVALID_COMMAND: 3337 return("invalid command"); 3338 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3339 return("protocol error"); 3340 case CISS_CMD_STATUS_HARDWARE_ERROR: 3341 return("hardware error"); 3342 case CISS_CMD_STATUS_CONNECTION_LOST: 3343 return("connection lost"); 3344 case CISS_CMD_STATUS_ABORTED: 3345 return("aborted"); 3346 case CISS_CMD_STATUS_ABORT_FAILED: 3347 return("abort failed"); 3348 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3349 return("unsolicited abort"); 3350 case CISS_CMD_STATUS_TIMEOUT: 3351 return("timeout"); 3352 case CISS_CMD_STATUS_UNABORTABLE: 3353 return("unabortable"); 3354 } 3355 return("unknown status"); 3356 } 3357 3358 /************************************************************************ 3359 * Handle an open on the control device. 3360 */ 3361 static int 3362 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3363 { 3364 struct ciss_softc *sc; 3365 3366 debug_called(1); 3367 3368 sc = (struct ciss_softc *)dev->si_drv1; 3369 3370 /* we might want to veto if someone already has us open */ 3371 3372 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3373 return(0); 3374 } 3375 3376 /************************************************************************ 3377 * Handle the last close on the control device. 3378 */ 3379 static int 3380 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3381 { 3382 struct ciss_softc *sc; 3383 3384 debug_called(1); 3385 3386 sc = (struct ciss_softc *)dev->si_drv1; 3387 3388 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3389 return (0); 3390 } 3391 3392 /******************************************************************************** 3393 * Handle adapter-specific control operations. 3394 * 3395 * Note that the API here is compatible with the Linux driver, in order to 3396 * simplify the porting of Compaq's userland tools. 3397 */ 3398 static int 3399 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3400 { 3401 struct ciss_softc *sc; 3402 int error; 3403 3404 debug_called(1); 3405 3406 sc = (struct ciss_softc *)dev->si_drv1; 3407 error = 0; 3408 3409 switch(cmd) { 3410 case CCISS_GETPCIINFO: 3411 { 3412 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3413 3414 pis->bus = pci_get_bus(sc->ciss_dev); 3415 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3416 pis->board_id = pci_get_devid(sc->ciss_dev); 3417 3418 break; 3419 } 3420 3421 case CCISS_GETINTINFO: 3422 { 3423 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3424 3425 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3426 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3427 3428 break; 3429 } 3430 3431 case CCISS_SETINTINFO: 3432 { 3433 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3434 3435 if ((cis->delay == 0) && (cis->count == 0)) { 3436 error = EINVAL; 3437 break; 3438 } 3439 3440 /* 3441 * XXX apparently this is only safe if the controller is idle, 3442 * we should suspend it before doing this. 3443 */ 3444 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3445 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3446 3447 if (ciss_update_config(sc)) 3448 error = EIO; 3449 3450 /* XXX resume the controller here */ 3451 break; 3452 } 3453 3454 case CCISS_GETNODENAME: 3455 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3456 sizeof(NodeName_type)); 3457 break; 3458 3459 case CCISS_SETNODENAME: 3460 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3461 sizeof(NodeName_type)); 3462 if (ciss_update_config(sc)) 3463 error = EIO; 3464 break; 3465 3466 case CCISS_GETHEARTBEAT: 3467 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3468 break; 3469 3470 case CCISS_GETBUSTYPES: 3471 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3472 break; 3473 3474 case CCISS_GETFIRMVER: 3475 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3476 sizeof(FirmwareVer_type)); 3477 break; 3478 3479 case CCISS_GETDRIVERVER: 3480 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3481 break; 3482 3483 case CCISS_REVALIDVOLS: 3484 /* 3485 * This is a bit ugly; to do it "right" we really need 3486 * to find any disks that have changed, kick CAM off them, 3487 * then rescan only these disks. It'd be nice if they 3488 * a) told us which disk(s) they were going to play with, 3489 * and b) which ones had arrived. 8( 3490 */ 3491 break; 3492 3493 case CCISS_PASSTHRU: 3494 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3495 break; 3496 3497 default: 3498 debug(0, "unknown ioctl 0x%lx", cmd); 3499 3500 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3501 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3502 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3503 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3504 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3505 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3506 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3507 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3508 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3509 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3510 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3511 3512 error = ENOIOCTL; 3513 break; 3514 } 3515 3516 return(error); 3517 } 3518