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 1.11 2004/09/17 03:25:43 joerg 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 callout_init(&sc->ciss_periodic); 345 346 /* 347 * Work out adapter type. 348 */ 349 i = ciss_lookup(dev); 350 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 351 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 352 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 353 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 354 } else { 355 /* really an error on our part */ 356 ciss_printf(sc, "unable to determine hardware type\n"); 357 error = ENXIO; 358 goto out; 359 } 360 361 /* 362 * Do PCI-specific init. 363 */ 364 if ((error = ciss_init_pci(sc)) != 0) 365 goto out; 366 367 /* 368 * Initialise driver queues. 369 */ 370 ciss_initq_free(sc); 371 ciss_initq_busy(sc); 372 ciss_initq_complete(sc); 373 374 /* 375 * Initialise command/request pool. 376 */ 377 if ((error = ciss_init_requests(sc)) != 0) 378 goto out; 379 380 /* 381 * Get adapter information. 382 */ 383 if ((error = ciss_identify_adapter(sc)) != 0) 384 goto out; 385 386 /* 387 * Build our private table of logical devices. 388 */ 389 if ((error = ciss_init_logical(sc)) != 0) 390 goto out; 391 392 /* 393 * Enable interrupts so that the CAM scan can complete. 394 */ 395 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 396 397 /* 398 * Initialise the CAM interface. 399 */ 400 if ((error = ciss_cam_init(sc)) != 0) 401 goto out; 402 403 /* 404 * Start the heartbeat routine and event chain. 405 */ 406 ciss_periodic(sc); 407 408 /* 409 * Create the control device. 410 */ 411 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev)); 412 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 413 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 414 "ciss%d", device_get_unit(sc->ciss_dev)); 415 sc->ciss_dev_t->si_drv1 = sc; 416 417 /* 418 * The adapter is running; synchronous commands can now sleep 419 * waiting for an interrupt to signal completion. 420 */ 421 sc->ciss_flags |= CISS_FLAG_RUNNING; 422 423 error = 0; 424 out: 425 if (error != 0) 426 ciss_free(sc); 427 return(error); 428 } 429 430 /************************************************************************ 431 * Detach the driver from this adapter. 432 */ 433 static int 434 ciss_detach(device_t dev) 435 { 436 struct ciss_softc *sc = device_get_softc(dev); 437 438 debug_called(1); 439 440 /* flush adapter cache */ 441 ciss_flush_adapter(sc); 442 443 /* release all resources */ 444 ciss_free(sc); 445 446 return(0); 447 448 } 449 450 /************************************************************************ 451 * Prepare adapter for system shutdown. 452 */ 453 static int 454 ciss_shutdown(device_t dev) 455 { 456 struct ciss_softc *sc = device_get_softc(dev); 457 458 debug_called(1); 459 460 /* flush adapter cache */ 461 ciss_flush_adapter(sc); 462 463 return(0); 464 } 465 466 /************************************************************************ 467 * Perform PCI-specific attachment actions. 468 */ 469 static int 470 ciss_init_pci(struct ciss_softc *sc) 471 { 472 uintptr_t cbase, csize, cofs; 473 int error; 474 475 debug_called(1); 476 477 /* 478 * Allocate register window first (we need this to find the config 479 * struct). 480 */ 481 error = ENXIO; 482 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 483 if ((sc->ciss_regs_resource = 484 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 485 0, ~0, 1, RF_ACTIVE)) == NULL) { 486 ciss_printf(sc, "can't allocate register window\n"); 487 return(ENXIO); 488 } 489 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 490 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 491 492 /* 493 * Find the BAR holding the config structure. If it's not the one 494 * we already mapped for registers, map it too. 495 */ 496 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 497 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 498 if ((sc->ciss_cfg_resource = 499 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 500 0, ~0, 1, RF_ACTIVE)) == NULL) { 501 ciss_printf(sc, "can't allocate config window\n"); 502 return(ENXIO); 503 } 504 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 505 csize = rman_get_end(sc->ciss_cfg_resource) - 506 rman_get_start(sc->ciss_cfg_resource) + 1; 507 } else { 508 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 509 csize = rman_get_end(sc->ciss_regs_resource) - 510 rman_get_start(sc->ciss_regs_resource) + 1; 511 } 512 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 513 514 /* 515 * Use the base/size/offset values we just calculated to 516 * sanity-check the config structure. If it's OK, point to it. 517 */ 518 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 519 ciss_printf(sc, "config table outside window\n"); 520 return(ENXIO); 521 } 522 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 523 debug(1, "config struct at %p", sc->ciss_cfg); 524 525 /* 526 * Validate the config structure. If we supported other transport 527 * methods, we could select amongst them at this point in time. 528 */ 529 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 530 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 531 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 532 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 533 return(ENXIO); 534 } 535 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 536 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 537 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 538 sc->ciss_cfg->valence); 539 return(ENXIO); 540 } 541 542 /* 543 * Put the board into simple mode, and tell it we're using the low 544 * 4GB of RAM. Set the default interrupt coalescing options. 545 */ 546 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 547 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 548 return(ENXIO); 549 } 550 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 551 sc->ciss_cfg->command_physlimit = 0; 552 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 553 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 554 555 if (ciss_update_config(sc)) { 556 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 557 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 558 return(ENXIO); 559 } 560 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 561 ciss_printf(sc, 562 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 563 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 564 return(ENXIO); 565 } 566 567 /* 568 * Wait for the adapter to come ready. 569 */ 570 if ((error = ciss_wait_adapter(sc)) != 0) 571 return(error); 572 573 /* 574 * Turn off interrupts before we go routing anything. 575 */ 576 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 577 578 /* 579 * Allocate and set up our interrupt. 580 */ 581 sc->ciss_irq_rid = 0; 582 if ((sc->ciss_irq_resource = 583 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 584 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 585 ciss_printf(sc, "can't allocate interrupt\n"); 586 return(ENXIO); 587 } 588 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 589 &sc->ciss_intr)) { 590 ciss_printf(sc, "can't set up interrupt\n"); 591 return(ENXIO); 592 } 593 594 /* 595 * Allocate the parent bus DMA tag appropriate for our PCI 596 * interface. 597 * 598 * Note that "simple" adapters can only address within a 32-bit 599 * span. 600 */ 601 if (bus_dma_tag_create(NULL, /* parent */ 602 1, 0, /* alignment, boundary */ 603 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 604 BUS_SPACE_MAXADDR, /* highaddr */ 605 NULL, NULL, /* filter, filterarg */ 606 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 607 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 608 BUS_DMA_ALLOCNOW, /* flags */ 609 &sc->ciss_parent_dmat)) { 610 ciss_printf(sc, "can't allocate parent DMA tag\n"); 611 return(ENOMEM); 612 } 613 614 /* 615 * Create DMA tag for mapping buffers into adapter-addressable 616 * space. 617 */ 618 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 619 1, 0, /* alignment, boundary */ 620 BUS_SPACE_MAXADDR, /* lowaddr */ 621 BUS_SPACE_MAXADDR, /* highaddr */ 622 NULL, NULL, /* filter, filterarg */ 623 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 624 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 625 0, /* flags */ 626 &sc->ciss_buffer_dmat)) { 627 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 628 return(ENOMEM); 629 } 630 return(0); 631 } 632 633 /************************************************************************ 634 * Wait for the adapter to come ready. 635 */ 636 static int 637 ciss_wait_adapter(struct ciss_softc *sc) 638 { 639 int i; 640 641 debug_called(1); 642 643 /* 644 * Wait for the adapter to come ready. 645 */ 646 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 647 ciss_printf(sc, "waiting for adapter to come ready...\n"); 648 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 649 DELAY(1000000); /* one second */ 650 if (i > 30) { 651 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 652 return(EIO); 653 } 654 } 655 } 656 return(0); 657 } 658 659 /************************************************************************ 660 * Flush the adapter cache. 661 */ 662 static int 663 ciss_flush_adapter(struct ciss_softc *sc) 664 { 665 struct ciss_request *cr; 666 struct ciss_bmic_flush_cache *cbfc; 667 int error, command_status; 668 669 debug_called(1); 670 671 cr = NULL; 672 cbfc = NULL; 673 674 /* 675 * Build a BMIC request to flush the cache. We don't disable 676 * it, as we may be going to do more I/O (eg. we are emulating 677 * the Synchronise Cache command). 678 */ 679 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 680 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 681 (void **)&cbfc, sizeof(*cbfc))) != 0) 682 goto out; 683 684 /* 685 * Submit the request and wait for it to complete. 686 */ 687 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 688 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 689 goto out; 690 } 691 692 /* 693 * Check response. 694 */ 695 ciss_report_request(cr, &command_status, NULL); 696 switch(command_status) { 697 case CISS_CMD_STATUS_SUCCESS: 698 break; 699 default: 700 ciss_printf(sc, "error flushing cache (%s)\n", 701 ciss_name_command_status(command_status)); 702 error = EIO; 703 goto out; 704 } 705 706 out: 707 if (cbfc != NULL) 708 free(cbfc, CISS_MALLOC_CLASS); 709 if (cr != NULL) 710 ciss_release_request(cr); 711 return(error); 712 } 713 714 /************************************************************************ 715 * Allocate memory for the adapter command structures, initialise 716 * the request structures. 717 * 718 * Note that the entire set of commands are allocated in a single 719 * contiguous slab. 720 */ 721 static int 722 ciss_init_requests(struct ciss_softc *sc) 723 { 724 struct ciss_request *cr; 725 int i; 726 727 debug_called(1); 728 729 /* 730 * Calculate the number of request structures/commands we are 731 * going to provide for this adapter. 732 */ 733 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 734 735 if (1/*bootverbose*/) 736 ciss_printf(sc, "using %d of %d available commands\n", 737 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 738 739 /* 740 * Create the DMA tag for commands. 741 */ 742 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 743 1, 0, /* alignment, boundary */ 744 BUS_SPACE_MAXADDR, /* lowaddr */ 745 BUS_SPACE_MAXADDR, /* highaddr */ 746 NULL, NULL, /* filter, filterarg */ 747 CISS_COMMAND_ALLOC_SIZE * 748 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 749 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 750 0, /* flags */ 751 &sc->ciss_command_dmat)) { 752 ciss_printf(sc, "can't allocate command DMA tag\n"); 753 return(ENOMEM); 754 } 755 /* 756 * Allocate memory and make it available for DMA. 757 */ 758 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 759 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 760 ciss_printf(sc, "can't allocate command memory\n"); 761 return(ENOMEM); 762 } 763 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 764 sizeof(struct ciss_command) * sc->ciss_max_requests, 765 ciss_command_map_helper, sc, 0); 766 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 767 768 /* 769 * Set up the request and command structures, push requests onto 770 * the free queue. 771 */ 772 for (i = 1; i < sc->ciss_max_requests; i++) { 773 cr = &sc->ciss_request[i]; 774 cr->cr_sc = sc; 775 cr->cr_tag = i; 776 ciss_enqueue_free(cr); 777 } 778 return(0); 779 } 780 781 static void 782 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 783 { 784 struct ciss_softc *sc = (struct ciss_softc *)arg; 785 786 sc->ciss_command_phys = segs->ds_addr; 787 } 788 789 /************************************************************************ 790 * Identify the adapter, print some information about it. 791 */ 792 static int 793 ciss_identify_adapter(struct ciss_softc *sc) 794 { 795 struct ciss_request *cr; 796 int error, command_status; 797 798 debug_called(1); 799 800 cr = NULL; 801 802 /* 803 * Get a request, allocate storage for the adapter data. 804 */ 805 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 806 (void **)&sc->ciss_id, 807 sizeof(*sc->ciss_id))) != 0) 808 goto out; 809 810 /* 811 * Submit the request and wait for it to complete. 812 */ 813 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 814 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 815 goto out; 816 } 817 818 /* 819 * Check response. 820 */ 821 ciss_report_request(cr, &command_status, NULL); 822 switch(command_status) { 823 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 824 break; 825 case CISS_CMD_STATUS_DATA_UNDERRUN: 826 case CISS_CMD_STATUS_DATA_OVERRUN: 827 ciss_printf(sc, "data over/underrun reading adapter information\n"); 828 default: 829 ciss_printf(sc, "error reading adapter information (%s)\n", 830 ciss_name_command_status(command_status)); 831 error = EIO; 832 goto out; 833 } 834 835 /* sanity-check reply */ 836 if (!sc->ciss_id->big_map_supported) { 837 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 838 error = ENXIO; 839 goto out; 840 } 841 842 #if 0 843 /* XXX later revisions may not need this */ 844 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 845 #endif 846 847 /* XXX only really required for old 5300 adapters? */ 848 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 849 850 /* print information */ 851 if (1/*bootverbose*/) { 852 ciss_printf(sc, " %d logical drive%s configured\n", 853 sc->ciss_id->configured_logical_drives, 854 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 855 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 856 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 857 858 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 859 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 860 ciss_printf(sc, " supported I/O methods 0x%b\n", 861 sc->ciss_cfg->supported_methods, 862 "\20\1READY\2simple\3performant\4MEMQ\n"); 863 ciss_printf(sc, " active I/O method 0x%b\n", 864 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 865 ciss_printf(sc, " 4G page base 0x%08x\n", 866 sc->ciss_cfg->command_physlimit); 867 ciss_printf(sc, " interrupt coalesce delay %dus\n", 868 sc->ciss_cfg->interrupt_coalesce_delay); 869 ciss_printf(sc, " interrupt coalesce count %d\n", 870 sc->ciss_cfg->interrupt_coalesce_count); 871 ciss_printf(sc, " max outstanding commands %d\n", 872 sc->ciss_cfg->max_outstanding_commands); 873 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 874 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 875 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 876 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 877 } 878 879 out: 880 if (error) { 881 if (sc->ciss_id != NULL) { 882 free(sc->ciss_id, CISS_MALLOC_CLASS); 883 sc->ciss_id = NULL; 884 } 885 } 886 if (cr != NULL) 887 ciss_release_request(cr); 888 return(error); 889 } 890 891 /************************************************************************ 892 * Find logical drives on the adapter. 893 */ 894 static int 895 ciss_init_logical(struct ciss_softc *sc) 896 { 897 struct ciss_request *cr; 898 struct ciss_command *cc; 899 struct ciss_report_cdb *crc; 900 struct ciss_lun_report *cll; 901 int error, i; 902 size_t report_size; 903 int ndrives; 904 int command_status; 905 906 debug_called(1); 907 908 cr = NULL; 909 cll = NULL; 910 911 /* 912 * Get a request, allocate storage for the address list. 913 */ 914 if ((error = ciss_get_request(sc, &cr)) != 0) 915 goto out; 916 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 917 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 918 919 /* 920 * Build the Report Logical LUNs command. 921 */ 922 cc = CISS_FIND_COMMAND(cr); 923 cr->cr_data = cll; 924 cr->cr_length = report_size; 925 cr->cr_flags = CISS_REQ_DATAIN; 926 927 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 928 cc->header.address.physical.bus = 0; 929 cc->header.address.physical.target = 0; 930 cc->cdb.cdb_length = sizeof(*crc); 931 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 932 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 933 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 934 cc->cdb.timeout = 30; /* XXX better suggestions? */ 935 936 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 937 bzero(crc, sizeof(*crc)); 938 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 939 crc->length = htonl(report_size); /* big-endian field */ 940 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 941 942 /* 943 * Submit the request and wait for it to complete. (timeout 944 * here should be much greater than above) 945 */ 946 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 947 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 948 goto out; 949 } 950 951 /* 952 * Check response. Note that data over/underrun is OK. 953 */ 954 ciss_report_request(cr, &command_status, NULL); 955 switch(command_status) { 956 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 957 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 958 break; 959 case CISS_CMD_STATUS_DATA_OVERRUN: 960 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 961 CISS_MAX_LOGICAL); 962 break; 963 default: 964 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 965 ciss_name_command_status(command_status)); 966 error = EIO; 967 goto out; 968 } 969 ciss_release_request(cr); 970 cr = NULL; 971 972 /* sanity-check reply */ 973 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 974 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 975 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 976 ndrives, CISS_MAX_LOGICAL); 977 return(ENXIO); 978 } 979 980 /* 981 * Save logical drive information. 982 */ 983 if (1/*bootverbose*/) 984 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 985 if (ndrives != sc->ciss_id->configured_logical_drives) 986 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 987 ndrives, sc->ciss_id->configured_logical_drives); 988 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 989 if (i < ndrives) { 990 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 991 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 992 continue; 993 /* 994 * If the drive has had media exchanged, we should bring it online. 995 */ 996 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 997 ciss_accept_media(sc, i, 0); 998 999 } else { 1000 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1001 } 1002 } 1003 error = 0; 1004 1005 out: 1006 /* 1007 * Note that if the error is a timeout, we are taking a slight 1008 * risk here and assuming that the adapter will not respond at a 1009 * later time, scribbling over host memory. 1010 */ 1011 if (cr != NULL) 1012 ciss_release_request(cr); 1013 if (cll != NULL) 1014 free(cll, CISS_MALLOC_CLASS); 1015 return(error); 1016 } 1017 1018 static int 1019 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1020 { 1021 struct ciss_request *cr; 1022 struct ciss_command *cc; 1023 struct scsi_inquiry *inq; 1024 int error; 1025 int command_status; 1026 int lun; 1027 1028 cr = NULL; 1029 lun = ld->cl_address.logical.lun; 1030 1031 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1032 1033 if ((error = ciss_get_request(sc, &cr)) != 0) 1034 goto out; 1035 1036 cc = CISS_FIND_COMMAND(cr); 1037 cr->cr_data = &ld->cl_geometry; 1038 cr->cr_length = sizeof(ld->cl_geometry); 1039 cr->cr_flags = CISS_REQ_DATAIN; 1040 1041 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1042 cc->header.address.logical.lun = lun; 1043 cc->cdb.cdb_length = 6; 1044 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1045 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1046 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1047 cc->cdb.timeout = 30; 1048 1049 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1050 inq->opcode = INQUIRY; 1051 inq->byte2 = SI_EVPD; 1052 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1053 inq->length = sizeof(ld->cl_geometry); 1054 1055 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1056 ciss_printf(sc, "error getting geometry (%d)\n", error); 1057 goto out; 1058 } 1059 1060 ciss_report_request(cr, &command_status, NULL); 1061 switch(command_status) { 1062 case CISS_CMD_STATUS_SUCCESS: 1063 case CISS_CMD_STATUS_DATA_UNDERRUN: 1064 break; 1065 case CISS_CMD_STATUS_DATA_OVERRUN: 1066 ciss_printf(sc, "WARNING: Data overrun\n"); 1067 break; 1068 default: 1069 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1070 ciss_name_command_status(command_status)); 1071 break; 1072 } 1073 1074 out: 1075 if (cr != NULL) 1076 ciss_release_request(cr); 1077 return(error); 1078 } 1079 /************************************************************************ 1080 * Identify a logical drive, initialise state related to it. 1081 */ 1082 static int 1083 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1084 { 1085 struct ciss_request *cr; 1086 struct ciss_command *cc; 1087 struct ciss_bmic_cdb *cbc; 1088 int error, command_status; 1089 1090 debug_called(1); 1091 1092 cr = NULL; 1093 1094 /* 1095 * Build a BMIC request to fetch the drive ID. 1096 */ 1097 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1098 (void **)&ld->cl_ldrive, 1099 sizeof(*ld->cl_ldrive))) != 0) 1100 goto out; 1101 cc = CISS_FIND_COMMAND(cr); 1102 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1103 cbc->log_drive = ld->cl_address.logical.lun; 1104 1105 /* 1106 * Submit the request and wait for it to complete. 1107 */ 1108 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1109 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1110 goto out; 1111 } 1112 1113 /* 1114 * Check response. 1115 */ 1116 ciss_report_request(cr, &command_status, NULL); 1117 switch(command_status) { 1118 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1119 break; 1120 case CISS_CMD_STATUS_DATA_UNDERRUN: 1121 case CISS_CMD_STATUS_DATA_OVERRUN: 1122 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1123 default: 1124 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1125 ciss_name_command_status(command_status)); 1126 error = EIO; 1127 goto out; 1128 } 1129 ciss_release_request(cr); 1130 cr = NULL; 1131 1132 /* 1133 * Build a CISS BMIC command to get the logical drive status. 1134 */ 1135 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1136 goto out; 1137 1138 /* 1139 * Get the logical drive geometry. 1140 */ 1141 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1142 goto out; 1143 1144 /* 1145 * Print the drive's basic characteristics. 1146 */ 1147 if (1/*bootverbose*/) { 1148 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1149 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1150 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1151 ld->cl_ldrive->block_size)); 1152 1153 ciss_print_ldrive(sc, ld); 1154 } 1155 out: 1156 if (error != 0) { 1157 /* make the drive not-exist */ 1158 ld->cl_status = CISS_LD_NONEXISTENT; 1159 if (ld->cl_ldrive != NULL) { 1160 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1161 ld->cl_ldrive = NULL; 1162 } 1163 if (ld->cl_lstatus != NULL) { 1164 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1165 ld->cl_lstatus = NULL; 1166 } 1167 } 1168 if (cr != NULL) 1169 ciss_release_request(cr); 1170 1171 return(error); 1172 } 1173 1174 /************************************************************************ 1175 * Get status for a logical drive. 1176 * 1177 * XXX should we also do this in response to Test Unit Ready? 1178 */ 1179 static int 1180 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1181 { 1182 struct ciss_request *cr; 1183 struct ciss_command *cc; 1184 struct ciss_bmic_cdb *cbc; 1185 int error, command_status; 1186 1187 /* 1188 * Build a CISS BMIC command to get the logical drive status. 1189 */ 1190 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1191 (void **)&ld->cl_lstatus, 1192 sizeof(*ld->cl_lstatus))) != 0) 1193 goto out; 1194 cc = CISS_FIND_COMMAND(cr); 1195 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1196 cbc->log_drive = ld->cl_address.logical.lun; 1197 1198 /* 1199 * Submit the request and wait for it to complete. 1200 */ 1201 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1202 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1203 goto out; 1204 } 1205 1206 /* 1207 * Check response. 1208 */ 1209 ciss_report_request(cr, &command_status, NULL); 1210 switch(command_status) { 1211 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1212 break; 1213 case CISS_CMD_STATUS_DATA_UNDERRUN: 1214 case CISS_CMD_STATUS_DATA_OVERRUN: 1215 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1216 default: 1217 ciss_printf(sc, "error reading logical drive status (%s)\n", 1218 ciss_name_command_status(command_status)); 1219 error = EIO; 1220 goto out; 1221 } 1222 1223 /* 1224 * Set the drive's summary status based on the returned status. 1225 * 1226 * XXX testing shows that a failed JBOD drive comes back at next 1227 * boot in "queued for expansion" mode. WTF? 1228 */ 1229 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1230 1231 out: 1232 if (cr != NULL) 1233 ciss_release_request(cr); 1234 return(error); 1235 } 1236 1237 /************************************************************************ 1238 * Notify the adapter of a config update. 1239 */ 1240 static int 1241 ciss_update_config(struct ciss_softc *sc) 1242 { 1243 int i; 1244 1245 debug_called(1); 1246 1247 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1248 for (i = 0; i < 1000; i++) { 1249 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1250 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1251 return(0); 1252 } 1253 DELAY(1000); 1254 } 1255 return(1); 1256 } 1257 1258 /************************************************************************ 1259 * Accept new media into a logical drive. 1260 * 1261 * XXX The drive has previously been offline; it would be good if we 1262 * could make sure it's not open right now. 1263 */ 1264 static int 1265 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1266 { 1267 struct ciss_request *cr; 1268 struct ciss_command *cc; 1269 struct ciss_bmic_cdb *cbc; 1270 int error; 1271 1272 debug(0, "bringing logical drive %d back online %ssynchronously", 1273 ldrive, async ? "a" : ""); 1274 1275 /* 1276 * Build a CISS BMIC command to bring the drive back online. 1277 */ 1278 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1279 NULL, 0)) != 0) 1280 goto out; 1281 cc = CISS_FIND_COMMAND(cr); 1282 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1283 cbc->log_drive = ldrive; 1284 1285 /* 1286 * Dispatch the request asynchronously if we can't sleep waiting 1287 * for it to complete. 1288 */ 1289 if (async) { 1290 cr->cr_complete = ciss_accept_media_complete; 1291 if ((error = ciss_start(cr)) != 0) 1292 goto out; 1293 return(0); 1294 } else { 1295 /* 1296 * Submit the request and wait for it to complete. 1297 */ 1298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1299 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1300 goto out; 1301 } 1302 } 1303 1304 /* 1305 * Call the completion callback manually. 1306 */ 1307 ciss_accept_media_complete(cr); 1308 return(0); 1309 1310 out: 1311 if (cr != NULL) 1312 ciss_release_request(cr); 1313 return(error); 1314 } 1315 1316 static void 1317 ciss_accept_media_complete(struct ciss_request *cr) 1318 { 1319 int command_status; 1320 1321 /* 1322 * Check response. 1323 */ 1324 ciss_report_request(cr, &command_status, NULL); 1325 switch(command_status) { 1326 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1327 /* we should get a logical drive status changed event here */ 1328 break; 1329 default: 1330 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1331 ciss_name_command_status(command_status)); 1332 break; 1333 } 1334 ciss_release_request(cr); 1335 } 1336 1337 /************************************************************************ 1338 * Release adapter resources. 1339 */ 1340 static void 1341 ciss_free(struct ciss_softc *sc) 1342 { 1343 debug_called(1); 1344 1345 /* we're going away */ 1346 sc->ciss_flags |= CISS_FLAG_ABORTING; 1347 1348 /* terminate the periodic heartbeat routine */ 1349 callout_stop(&sc->ciss_periodic); 1350 1351 /* cancel the Event Notify chain */ 1352 ciss_notify_abort(sc); 1353 1354 /* free the controller data */ 1355 if (sc->ciss_id != NULL) 1356 free(sc->ciss_id, CISS_MALLOC_CLASS); 1357 1358 /* release I/O resources */ 1359 if (sc->ciss_regs_resource != NULL) 1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1361 sc->ciss_regs_rid, sc->ciss_regs_resource); 1362 if (sc->ciss_cfg_resource != NULL) 1363 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1364 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1365 if (sc->ciss_intr != NULL) 1366 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1367 if (sc->ciss_irq_resource != NULL) 1368 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1369 sc->ciss_irq_rid, sc->ciss_irq_resource); 1370 1371 /* destroy DMA tags */ 1372 if (sc->ciss_parent_dmat) 1373 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1374 if (sc->ciss_buffer_dmat) 1375 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1376 1377 /* destroy command memory and DMA tag */ 1378 if (sc->ciss_command != NULL) { 1379 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1380 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1381 } 1382 if (sc->ciss_buffer_dmat) 1383 bus_dma_tag_destroy(sc->ciss_command_dmat); 1384 1385 /* disconnect from CAM */ 1386 if (sc->ciss_cam_sim) { 1387 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1388 cam_sim_free(sc->ciss_cam_sim); 1389 } 1390 if (sc->ciss_cam_devq) 1391 cam_simq_release(sc->ciss_cam_devq); 1392 /* XXX what about ciss_cam_path? */ 1393 } 1394 1395 /************************************************************************ 1396 * Give a command to the adapter. 1397 * 1398 * Note that this uses the simple transport layer directly. If we 1399 * want to add support for other layers, we'll need a switch of some 1400 * sort. 1401 * 1402 * Note that the simple transport layer has no way of refusing a 1403 * command; we only have as many request structures as the adapter 1404 * supports commands, so we don't have to check (this presumes that 1405 * the adapter can handle commands as fast as we throw them at it). 1406 */ 1407 static int 1408 ciss_start(struct ciss_request *cr) 1409 { 1410 struct ciss_command *cc; /* XXX debugging only */ 1411 int error; 1412 1413 cc = CISS_FIND_COMMAND(cr); 1414 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1415 1416 /* 1417 * Map the request's data. 1418 */ 1419 if ((error = ciss_map_request(cr))) 1420 return(error); 1421 1422 #if 0 1423 ciss_print_request(cr); 1424 #endif 1425 1426 /* 1427 * Post the command to the adapter. 1428 */ 1429 ciss_enqueue_busy(cr); 1430 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1431 1432 return(0); 1433 } 1434 1435 /************************************************************************ 1436 * Fetch completed request(s) from the adapter, queue them for 1437 * completion handling. 1438 * 1439 * Note that this uses the simple transport layer directly. If we 1440 * want to add support for other layers, we'll need a switch of some 1441 * sort. 1442 * 1443 * Note that the simple transport mechanism does not require any 1444 * reentrancy protection; the OPQ read is atomic. If there is a 1445 * chance of a race with something else that might move the request 1446 * off the busy list, then we will have to lock against that 1447 * (eg. timeouts, etc.) 1448 */ 1449 static void 1450 ciss_done(struct ciss_softc *sc) 1451 { 1452 struct ciss_request *cr; 1453 struct ciss_command *cc; 1454 u_int32_t tag, index; 1455 int complete; 1456 1457 debug_called(3); 1458 1459 /* 1460 * Loop quickly taking requests from the adapter and moving them 1461 * from the busy queue to the completed queue. 1462 */ 1463 complete = 0; 1464 for (;;) { 1465 1466 /* see if the OPQ contains anything */ 1467 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1468 break; 1469 1470 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1471 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1472 break; 1473 index = tag >> 2; 1474 debug(2, "completed command %d%s", index, 1475 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1476 if (index >= sc->ciss_max_requests) { 1477 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1478 continue; 1479 } 1480 cr = &(sc->ciss_request[index]); 1481 cc = CISS_FIND_COMMAND(cr); 1482 cc->header.host_tag = tag; /* not updated by adapter */ 1483 if (ciss_remove_busy(cr)) { 1484 /* assume this is garbage out of the adapter */ 1485 ciss_printf(sc, "completed nonbusy request %d\n", index); 1486 } else { 1487 ciss_enqueue_complete(cr); 1488 } 1489 complete = 1; 1490 } 1491 1492 /* 1493 * Invoke completion processing. If we can defer this out of 1494 * interrupt context, that'd be good. 1495 */ 1496 if (complete) 1497 ciss_complete(sc); 1498 } 1499 1500 /************************************************************************ 1501 * Take an interrupt from the adapter. 1502 */ 1503 static void 1504 ciss_intr(void *arg) 1505 { 1506 struct ciss_softc *sc = (struct ciss_softc *)arg; 1507 1508 /* 1509 * The only interrupt we recognise indicates that there are 1510 * entries in the outbound post queue. 1511 */ 1512 ciss_done(sc); 1513 } 1514 1515 /************************************************************************ 1516 * Process completed requests. 1517 * 1518 * Requests can be completed in three fashions: 1519 * 1520 * - by invoking a callback function (cr_complete is non-null) 1521 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1522 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1523 */ 1524 static void 1525 ciss_complete(struct ciss_softc *sc) 1526 { 1527 struct ciss_request *cr; 1528 1529 debug_called(2); 1530 1531 /* 1532 * Loop taking requests off the completed queue and performing 1533 * completion processing on them. 1534 */ 1535 for (;;) { 1536 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1537 break; 1538 ciss_unmap_request(cr); 1539 1540 /* 1541 * If the request has a callback, invoke it. 1542 */ 1543 if (cr->cr_complete != NULL) { 1544 cr->cr_complete(cr); 1545 continue; 1546 } 1547 1548 /* 1549 * If someone is sleeping on this request, wake them up. 1550 */ 1551 if (cr->cr_flags & CISS_REQ_SLEEP) { 1552 cr->cr_flags &= ~CISS_REQ_SLEEP; 1553 wakeup(cr); 1554 continue; 1555 } 1556 1557 /* 1558 * If someone is polling this request for completion, signal. 1559 */ 1560 if (cr->cr_flags & CISS_REQ_POLL) { 1561 cr->cr_flags &= ~CISS_REQ_POLL; 1562 continue; 1563 } 1564 1565 /* 1566 * Give up and throw the request back on the free queue. This 1567 * should never happen; resources will probably be lost. 1568 */ 1569 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1570 ciss_enqueue_free(cr); 1571 } 1572 } 1573 1574 /************************************************************************ 1575 * Report on the completion status of a request, and pass back SCSI 1576 * and command status values. 1577 */ 1578 static int 1579 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1580 { 1581 struct ciss_command *cc; 1582 struct ciss_error_info *ce; 1583 1584 debug_called(2); 1585 1586 cc = CISS_FIND_COMMAND(cr); 1587 ce = (struct ciss_error_info *)&(cc->sg[0]); 1588 1589 /* 1590 * We don't consider data under/overrun an error for the Report 1591 * Logical/Physical LUNs commands. 1592 */ 1593 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1594 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1595 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1596 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1597 debug(2, "ignoring irrelevant under/overrun error"); 1598 } 1599 1600 /* 1601 * Check the command's error bit, if clear, there's no status and 1602 * everything is OK. 1603 */ 1604 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1605 if (scsi_status != NULL) 1606 *scsi_status = SCSI_STATUS_OK; 1607 if (command_status != NULL) 1608 *command_status = CISS_CMD_STATUS_SUCCESS; 1609 return(0); 1610 } else { 1611 if (command_status != NULL) 1612 *command_status = ce->command_status; 1613 if (scsi_status != NULL) { 1614 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1615 *scsi_status = ce->scsi_status; 1616 } else { 1617 *scsi_status = -1; 1618 } 1619 } 1620 if (bootverbose) 1621 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1622 ce->command_status, ciss_name_command_status(ce->command_status), 1623 ce->scsi_status); 1624 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1625 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1626 ce->additional_error_info.invalid_command.offense_size, 1627 ce->additional_error_info.invalid_command.offense_offset, 1628 ce->additional_error_info.invalid_command.offense_value); 1629 } 1630 } 1631 return(1); 1632 } 1633 1634 /************************************************************************ 1635 * Issue a request and don't return until it's completed. 1636 * 1637 * Depending on adapter status, we may poll or sleep waiting for 1638 * completion. 1639 */ 1640 static int 1641 ciss_synch_request(struct ciss_request *cr, int timeout) 1642 { 1643 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1644 return(ciss_wait_request(cr, timeout)); 1645 } else { 1646 return(ciss_poll_request(cr, timeout)); 1647 } 1648 } 1649 1650 /************************************************************************ 1651 * Issue a request and poll for completion. 1652 * 1653 * Timeout in milliseconds. 1654 */ 1655 static int 1656 ciss_poll_request(struct ciss_request *cr, int timeout) 1657 { 1658 int error; 1659 1660 debug_called(2); 1661 1662 cr->cr_flags |= CISS_REQ_POLL; 1663 if ((error = ciss_start(cr)) != 0) 1664 return(error); 1665 1666 do { 1667 ciss_done(cr->cr_sc); 1668 if (!(cr->cr_flags & CISS_REQ_POLL)) 1669 return(0); 1670 DELAY(1000); 1671 } while (timeout-- >= 0); 1672 return(EWOULDBLOCK); 1673 } 1674 1675 /************************************************************************ 1676 * Issue a request and sleep waiting for completion. 1677 * 1678 * Timeout in milliseconds. Note that a spurious wakeup will reset 1679 * the timeout. 1680 */ 1681 static int 1682 ciss_wait_request(struct ciss_request *cr, int timeout) 1683 { 1684 int s, error; 1685 1686 debug_called(2); 1687 1688 cr->cr_flags |= CISS_REQ_SLEEP; 1689 if ((error = ciss_start(cr)) != 0) 1690 return(error); 1691 1692 s = splcam(); 1693 while (cr->cr_flags & CISS_REQ_SLEEP) { 1694 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1695 /* 1696 * On wakeup or interruption due to restartable activity, go 1697 * back and check to see if we're done. 1698 */ 1699 if ((error == 0) || (error == ERESTART)) { 1700 error = 0; 1701 continue; 1702 } 1703 /* 1704 * Timeout, interrupted system call, etc. 1705 */ 1706 break; 1707 } 1708 splx(s); 1709 return(error); 1710 } 1711 1712 #if 0 1713 /************************************************************************ 1714 * Abort a request. Note that a potential exists here to race the 1715 * request being completed; the caller must deal with this. 1716 */ 1717 static int 1718 ciss_abort_request(struct ciss_request *ar) 1719 { 1720 struct ciss_request *cr; 1721 struct ciss_command *cc; 1722 struct ciss_message_cdb *cmc; 1723 int error; 1724 1725 debug_called(1); 1726 1727 /* get a request */ 1728 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1729 return(error); 1730 1731 /* build the abort command */ 1732 cc = CISS_FIND_COMMAND(cr); 1733 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1734 cc->header.address.physical.target = 0; 1735 cc->header.address.physical.bus = 0; 1736 cc->cdb.cdb_length = sizeof(*cmc); 1737 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1738 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1739 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1740 cc->cdb.timeout = 30; 1741 1742 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1743 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1744 cmc->type = CISS_MESSAGE_ABORT_TASK; 1745 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1746 1747 /* 1748 * Send the request and wait for a response. If we believe we 1749 * aborted the request OK, clear the flag that indicates it's 1750 * running. 1751 */ 1752 error = ciss_synch_request(cr, 35 * 1000); 1753 if (!error) 1754 error = ciss_report_request(cr, NULL, NULL); 1755 ciss_release_request(cr); 1756 1757 return(error); 1758 } 1759 #endif 1760 1761 1762 /************************************************************************ 1763 * Fetch and initialise a request 1764 */ 1765 static int 1766 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1767 { 1768 struct ciss_request *cr; 1769 1770 debug_called(2); 1771 1772 /* 1773 * Get a request and clean it up. 1774 */ 1775 if ((cr = ciss_dequeue_free(sc)) == NULL) 1776 return(ENOMEM); 1777 1778 cr->cr_data = NULL; 1779 cr->cr_flags = 0; 1780 cr->cr_complete = NULL; 1781 1782 ciss_preen_command(cr); 1783 *crp = cr; 1784 return(0); 1785 } 1786 1787 static void 1788 ciss_preen_command(struct ciss_request *cr) 1789 { 1790 struct ciss_command *cc; 1791 u_int32_t cmdphys; 1792 1793 /* 1794 * Clean up the command structure. 1795 * 1796 * Note that we set up the error_info structure here, since the 1797 * length can be overwritten by any command. 1798 */ 1799 cc = CISS_FIND_COMMAND(cr); 1800 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1801 cc->header.sg_total = 0; 1802 cc->header.host_tag = cr->cr_tag << 2; 1803 cc->header.host_tag_zeroes = 0; 1804 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1805 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1806 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1807 1808 } 1809 1810 /************************************************************************ 1811 * Release a request to the free list. 1812 */ 1813 static void 1814 ciss_release_request(struct ciss_request *cr) 1815 { 1816 struct ciss_softc *sc; 1817 1818 debug_called(2); 1819 1820 sc = cr->cr_sc; 1821 1822 /* release the request to the free queue */ 1823 ciss_requeue_free(cr); 1824 } 1825 1826 /************************************************************************ 1827 * Allocate a request that will be used to send a BMIC command. Do some 1828 * of the common setup here to avoid duplicating it everywhere else. 1829 */ 1830 static int 1831 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1832 int opcode, void **bufp, size_t bufsize) 1833 { 1834 struct ciss_request *cr; 1835 struct ciss_command *cc; 1836 struct ciss_bmic_cdb *cbc; 1837 void *buf; 1838 int error; 1839 int dataout; 1840 1841 debug_called(2); 1842 1843 cr = NULL; 1844 buf = NULL; 1845 1846 /* 1847 * Get a request. 1848 */ 1849 if ((error = ciss_get_request(sc, &cr)) != 0) 1850 goto out; 1851 1852 /* 1853 * Allocate data storage if requested, determine the data direction. 1854 */ 1855 dataout = 0; 1856 if ((bufsize > 0) && (bufp != NULL)) { 1857 if (*bufp == NULL) { 1858 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1859 } else { 1860 buf = *bufp; 1861 dataout = 1; /* we are given a buffer, so we are writing */ 1862 } 1863 } 1864 1865 /* 1866 * Build a CISS BMIC command to get the logical drive ID. 1867 */ 1868 cr->cr_data = buf; 1869 cr->cr_length = bufsize; 1870 if (!dataout) 1871 cr->cr_flags = CISS_REQ_DATAIN; 1872 1873 cc = CISS_FIND_COMMAND(cr); 1874 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1875 cc->header.address.physical.bus = 0; 1876 cc->header.address.physical.target = 0; 1877 cc->cdb.cdb_length = sizeof(*cbc); 1878 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1879 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1880 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1881 cc->cdb.timeout = 0; 1882 1883 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1884 bzero(cbc, sizeof(*cbc)); 1885 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1886 cbc->bmic_opcode = opcode; 1887 cbc->size = htons((u_int16_t)bufsize); 1888 1889 out: 1890 if (error) { 1891 if (cr != NULL) 1892 ciss_release_request(cr); 1893 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1894 free(buf, CISS_MALLOC_CLASS); 1895 } else { 1896 *crp = cr; 1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1898 *bufp = buf; 1899 } 1900 return(error); 1901 } 1902 1903 /************************************************************************ 1904 * Handle a command passed in from userspace. 1905 */ 1906 static int 1907 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1908 { 1909 struct ciss_request *cr; 1910 struct ciss_command *cc; 1911 struct ciss_error_info *ce; 1912 int error; 1913 1914 debug_called(1); 1915 1916 cr = NULL; 1917 1918 /* 1919 * Get a request. 1920 */ 1921 if ((error = ciss_get_request(sc, &cr)) != 0) 1922 goto out; 1923 cc = CISS_FIND_COMMAND(cr); 1924 1925 /* 1926 * Allocate an in-kernel databuffer if required, copy in user data. 1927 */ 1928 cr->cr_length = ioc->buf_size; 1929 if (ioc->buf_size > 0) { 1930 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1931 error = ENOMEM; 1932 goto out; 1933 } 1934 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1935 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1936 goto out; 1937 } 1938 } 1939 1940 /* 1941 * Build the request based on the user command. 1942 */ 1943 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1944 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1945 1946 /* XXX anything else to populate here? */ 1947 1948 /* 1949 * Run the command. 1950 */ 1951 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1952 debug(0, "request failed - %d", error); 1953 goto out; 1954 } 1955 1956 /* 1957 * Copy the results back to the user. 1958 */ 1959 ce = (struct ciss_error_info *)&(cc->sg[0]); 1960 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1961 if ((ioc->buf_size > 0) && 1962 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1963 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1964 goto out; 1965 } 1966 1967 /* done OK */ 1968 error = 0; 1969 1970 out: 1971 if ((cr != NULL) && (cr->cr_data != NULL)) 1972 free(cr->cr_data, CISS_MALLOC_CLASS); 1973 if (cr != NULL) 1974 ciss_release_request(cr); 1975 return(error); 1976 } 1977 1978 /************************************************************************ 1979 * Map a request into bus-visible space, initialise the scatter/gather 1980 * list. 1981 */ 1982 static int 1983 ciss_map_request(struct ciss_request *cr) 1984 { 1985 struct ciss_softc *sc; 1986 1987 debug_called(2); 1988 1989 sc = cr->cr_sc; 1990 1991 /* check that mapping is necessary */ 1992 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1993 return(0); 1994 1995 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1996 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 1997 1998 if (cr->cr_flags & CISS_REQ_DATAIN) 1999 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2000 if (cr->cr_flags & CISS_REQ_DATAOUT) 2001 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2002 2003 cr->cr_flags |= CISS_REQ_MAPPED; 2004 return(0); 2005 } 2006 2007 static void 2008 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2009 { 2010 struct ciss_command *cc; 2011 int i; 2012 2013 debug_called(2); 2014 2015 cc = (struct ciss_command *)arg; 2016 for (i = 0; i < nseg; i++) { 2017 cc->sg[i].address = segs[i].ds_addr; 2018 cc->sg[i].length = segs[i].ds_len; 2019 cc->sg[i].extension = 0; 2020 } 2021 /* we leave the s/g table entirely within the command */ 2022 cc->header.sg_in_list = nseg; 2023 cc->header.sg_total = nseg; 2024 } 2025 2026 /************************************************************************ 2027 * Unmap a request from bus-visible space. 2028 */ 2029 static void 2030 ciss_unmap_request(struct ciss_request *cr) 2031 { 2032 struct ciss_softc *sc; 2033 2034 debug_called(2); 2035 2036 sc = cr->cr_sc; 2037 2038 /* check that unmapping is necessary */ 2039 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2040 return; 2041 2042 if (cr->cr_flags & CISS_REQ_DATAIN) 2043 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2044 if (cr->cr_flags & CISS_REQ_DATAOUT) 2045 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2046 2047 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2048 cr->cr_flags &= ~CISS_REQ_MAPPED; 2049 } 2050 2051 /************************************************************************ 2052 * Attach the driver to CAM. 2053 * 2054 * We put all the logical drives on a single SCSI bus. 2055 */ 2056 static int 2057 ciss_cam_init(struct ciss_softc *sc) 2058 { 2059 2060 debug_called(1); 2061 2062 /* 2063 * Allocate a devq. We can reuse this for the masked physical 2064 * devices if we decide to export these as well. 2065 */ 2066 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2067 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2068 return(ENOMEM); 2069 } 2070 2071 /* 2072 * Create a SIM. 2073 */ 2074 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2075 device_get_unit(sc->ciss_dev), 2076 sc->ciss_max_requests - 2, 2077 1, 2078 sc->ciss_cam_devq)) == NULL) { 2079 ciss_printf(sc, "can't allocate CAM SIM\n"); 2080 return(ENOMEM); 2081 } 2082 2083 /* 2084 * Register bus 0 (the 'logical drives' bus) with this SIM. 2085 */ 2086 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2087 ciss_printf(sc, "can't register SCSI bus 0\n"); 2088 return(ENXIO); 2089 } 2090 2091 /* 2092 * Initiate a rescan of the bus. 2093 */ 2094 ciss_cam_rescan_all(sc); 2095 2096 return(0); 2097 } 2098 2099 /************************************************************************ 2100 * Initiate a rescan of the 'logical devices' SIM 2101 */ 2102 static void 2103 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2104 { 2105 union ccb *ccb; 2106 2107 debug_called(1); 2108 2109 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2110 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2111 return; 2112 } 2113 2114 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2115 != CAM_REQ_CMP) { 2116 ciss_printf(sc, "rescan failed (can't create path)\n"); 2117 return; 2118 } 2119 2120 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2121 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2122 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2123 ccb->crcn.flags = CAM_FLAG_NONE; 2124 xpt_action(ccb); 2125 2126 /* scan is now in progress */ 2127 } 2128 2129 static void 2130 ciss_cam_rescan_all(struct ciss_softc *sc) 2131 { 2132 return(ciss_cam_rescan_target(sc, 0)); 2133 } 2134 2135 static void 2136 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2137 { 2138 xpt_free_path(ccb->ccb_h.path); 2139 free(ccb, M_TEMP); 2140 } 2141 2142 /************************************************************************ 2143 * Handle requests coming from CAM 2144 */ 2145 static void 2146 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2147 { 2148 struct ciss_softc *sc; 2149 struct ccb_scsiio *csio; 2150 int target; 2151 2152 sc = cam_sim_softc(sim); 2153 csio = (struct ccb_scsiio *)&ccb->csio; 2154 target = csio->ccb_h.target_id; 2155 2156 switch (ccb->ccb_h.func_code) { 2157 2158 /* perform SCSI I/O */ 2159 case XPT_SCSI_IO: 2160 if (!ciss_cam_action_io(sim, csio)) 2161 return; 2162 break; 2163 2164 /* perform geometry calculations */ 2165 case XPT_CALC_GEOMETRY: 2166 { 2167 struct ccb_calc_geometry *ccg = &ccb->ccg; 2168 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2169 2170 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2171 2172 /* 2173 * Use the cached geometry settings unless the fault tolerance 2174 * is invalid. 2175 */ 2176 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2177 u_int32_t secs_per_cylinder; 2178 2179 ccg->heads = 255; 2180 ccg->secs_per_track = 32; 2181 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2182 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2183 } else { 2184 ccg->heads = ld->cl_geometry.heads; 2185 ccg->secs_per_track = ld->cl_geometry.sectors; 2186 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2187 } 2188 ccb->ccb_h.status = CAM_REQ_CMP; 2189 break; 2190 } 2191 2192 /* handle path attribute inquiry */ 2193 case XPT_PATH_INQ: 2194 { 2195 struct ccb_pathinq *cpi = &ccb->cpi; 2196 2197 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2198 2199 cpi->version_num = 1; 2200 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2201 cpi->target_sprt = 0; 2202 cpi->hba_misc = 0; 2203 cpi->max_target = CISS_MAX_LOGICAL; 2204 cpi->max_lun = 0; /* 'logical drive' channel only */ 2205 cpi->initiator_id = CISS_MAX_LOGICAL; 2206 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2207 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2208 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2209 cpi->unit_number = cam_sim_unit(sim); 2210 cpi->bus_id = cam_sim_bus(sim); 2211 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2212 ccb->ccb_h.status = CAM_REQ_CMP; 2213 break; 2214 } 2215 2216 case XPT_GET_TRAN_SETTINGS: 2217 { 2218 struct ccb_trans_settings *cts = &ccb->cts; 2219 int bus, target; 2220 2221 bus = cam_sim_bus(sim); 2222 target = cts->ccb_h.target_id; 2223 2224 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2225 cts->valid = 0; 2226 2227 /* disconnect always OK */ 2228 cts->flags |= CCB_TRANS_DISC_ENB; 2229 cts->valid |= CCB_TRANS_DISC_VALID; 2230 2231 cts->ccb_h.status = CAM_REQ_CMP; 2232 break; 2233 } 2234 2235 default: /* we can't do this */ 2236 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2237 ccb->ccb_h.status = CAM_REQ_INVALID; 2238 break; 2239 } 2240 2241 xpt_done(ccb); 2242 } 2243 2244 /************************************************************************ 2245 * Handle a CAM SCSI I/O request. 2246 */ 2247 static int 2248 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2249 { 2250 struct ciss_softc *sc; 2251 int bus, target; 2252 struct ciss_request *cr; 2253 struct ciss_command *cc; 2254 int error; 2255 2256 sc = cam_sim_softc(sim); 2257 bus = cam_sim_bus(sim); 2258 target = csio->ccb_h.target_id; 2259 2260 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2261 2262 /* check for I/O attempt to nonexistent device */ 2263 if ((bus != 0) || 2264 (target > CISS_MAX_LOGICAL) || 2265 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2266 debug(3, " device does not exist"); 2267 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2268 } 2269 2270 /* firmware does not support commands > 10 bytes */ 2271 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2272 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2273 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2274 } 2275 2276 /* check that the CDB pointer is not to a physical address */ 2277 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2278 debug(3, " CDB pointer is to physical address"); 2279 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2280 } 2281 2282 /* if there is data transfer, it must be to/from a virtual address */ 2283 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2284 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2285 debug(3, " data pointer is to physical address"); 2286 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2287 } 2288 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2289 debug(3, " data has premature s/g setup"); 2290 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2291 } 2292 } 2293 2294 /* abandon aborted ccbs or those that have failed validation */ 2295 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2296 debug(3, "abandoning CCB due to abort/validation failure"); 2297 return(EINVAL); 2298 } 2299 2300 /* handle emulation of some SCSI commands ourself */ 2301 if (ciss_cam_emulate(sc, csio)) 2302 return(0); 2303 2304 /* 2305 * Get a request to manage this command. If we can't, return the 2306 * ccb, freeze the queue and flag so that we unfreeze it when a 2307 * request completes. 2308 */ 2309 if ((error = ciss_get_request(sc, &cr)) != 0) { 2310 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2311 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2312 return(error); 2313 } 2314 2315 /* 2316 * Build the command. 2317 */ 2318 cc = CISS_FIND_COMMAND(cr); 2319 cr->cr_data = csio->data_ptr; 2320 cr->cr_length = csio->dxfer_len; 2321 cr->cr_complete = ciss_cam_complete; 2322 cr->cr_private = csio; 2323 2324 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2325 cc->header.address.logical.lun = target; 2326 cc->cdb.cdb_length = csio->cdb_len; 2327 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2328 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2329 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2330 cr->cr_flags = CISS_REQ_DATAOUT; 2331 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2332 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2333 cr->cr_flags = CISS_REQ_DATAIN; 2334 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2335 } else { 2336 cr->cr_flags = 0; 2337 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2338 } 2339 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2340 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2341 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2342 } else { 2343 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2344 } 2345 2346 /* 2347 * Submit the request to the adapter. 2348 * 2349 * Note that this may fail if we're unable to map the request (and 2350 * if we ever learn a transport layer other than simple, may fail 2351 * if the adapter rejects the command). 2352 */ 2353 if ((error = ciss_start(cr)) != 0) { 2354 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2355 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2356 ciss_release_request(cr); 2357 return(error); 2358 } 2359 2360 return(0); 2361 } 2362 2363 /************************************************************************ 2364 * Emulate SCSI commands the adapter doesn't handle as we might like. 2365 */ 2366 static int 2367 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2368 { 2369 int target; 2370 u_int8_t opcode; 2371 2372 2373 target = csio->ccb_h.target_id; 2374 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2375 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2376 2377 /* 2378 * Handle requests for volumes that don't exist. A selection timeout 2379 * is slightly better than an illegal request. Other errors might be 2380 * better. 2381 */ 2382 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2383 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2384 xpt_done((union ccb *)csio); 2385 return(1); 2386 } 2387 2388 /* 2389 * Handle requests for volumes that exist but are offline. 2390 * 2391 * I/O operations should fail, everything else should work. 2392 */ 2393 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2394 switch(opcode) { 2395 case READ_6: 2396 case READ_10: 2397 case READ_12: 2398 case WRITE_6: 2399 case WRITE_10: 2400 case WRITE_12: 2401 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2402 xpt_done((union ccb *)csio); 2403 return(1); 2404 } 2405 } 2406 2407 2408 /* if we have to fake Synchronise Cache */ 2409 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2410 2411 /* 2412 * If this is a Synchronise Cache command, typically issued when 2413 * a device is closed, flush the adapter and complete now. 2414 */ 2415 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2416 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2417 ciss_flush_adapter(sc); 2418 csio->ccb_h.status = CAM_REQ_CMP; 2419 xpt_done((union ccb *)csio); 2420 return(1); 2421 } 2422 } 2423 2424 return(0); 2425 } 2426 2427 /************************************************************************ 2428 * Check for possibly-completed commands. 2429 */ 2430 static void 2431 ciss_cam_poll(struct cam_sim *sim) 2432 { 2433 struct ciss_softc *sc = cam_sim_softc(sim); 2434 2435 debug_called(2); 2436 2437 ciss_done(sc); 2438 } 2439 2440 /************************************************************************ 2441 * Handle completion of a command - pass results back through the CCB 2442 */ 2443 static void 2444 ciss_cam_complete(struct ciss_request *cr) 2445 { 2446 struct ciss_softc *sc; 2447 struct ciss_command *cc; 2448 struct ciss_error_info *ce; 2449 struct ccb_scsiio *csio; 2450 int scsi_status; 2451 int command_status; 2452 2453 debug_called(2); 2454 2455 sc = cr->cr_sc; 2456 cc = CISS_FIND_COMMAND(cr); 2457 ce = (struct ciss_error_info *)&(cc->sg[0]); 2458 csio = (struct ccb_scsiio *)cr->cr_private; 2459 2460 /* 2461 * Extract status values from request. 2462 */ 2463 ciss_report_request(cr, &command_status, &scsi_status); 2464 csio->scsi_status = scsi_status; 2465 2466 /* 2467 * Handle specific SCSI status values. 2468 */ 2469 switch(scsi_status) { 2470 /* no status due to adapter error */ 2471 case -1: 2472 debug(0, "adapter error"); 2473 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2474 break; 2475 2476 /* no status due to command completed OK */ 2477 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2478 debug(2, "SCSI_STATUS_OK"); 2479 csio->ccb_h.status = CAM_REQ_CMP; 2480 break; 2481 2482 /* check condition, sense data included */ 2483 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2484 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2485 ce->sense_length, ce->residual_count); 2486 bzero(&csio->sense_data, SSD_FULL_SIZE); 2487 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2488 csio->sense_len = ce->sense_length; 2489 csio->resid = ce->residual_count; 2490 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2491 #ifdef CISS_DEBUG 2492 { 2493 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2494 debug(0, "sense key %x", sns->flags & SSD_KEY); 2495 } 2496 #endif 2497 break; 2498 2499 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2500 debug(0, "SCSI_STATUS_BUSY"); 2501 csio->ccb_h.status = CAM_SCSI_BUSY; 2502 break; 2503 2504 default: 2505 debug(0, "unknown status 0x%x", csio->scsi_status); 2506 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2507 break; 2508 } 2509 2510 /* handle post-command fixup */ 2511 ciss_cam_complete_fixup(sc, csio); 2512 2513 /* tell CAM we're ready for more commands */ 2514 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2515 2516 xpt_done((union ccb *)csio); 2517 ciss_release_request(cr); 2518 } 2519 2520 /******************************************************************************** 2521 * Fix up the result of some commands here. 2522 */ 2523 static void 2524 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2525 { 2526 struct scsi_inquiry_data *inq; 2527 struct ciss_ldrive *cl; 2528 int target; 2529 2530 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2531 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2532 2533 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2534 target = csio->ccb_h.target_id; 2535 cl = &sc->ciss_logical[target]; 2536 2537 padstr(inq->vendor, "COMPAQ", 8); 2538 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2539 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2540 } 2541 } 2542 2543 2544 /******************************************************************************** 2545 * Find a peripheral attached at (target) 2546 */ 2547 static struct cam_periph * 2548 ciss_find_periph(struct ciss_softc *sc, int target) 2549 { 2550 struct cam_periph *periph; 2551 struct cam_path *path; 2552 int status; 2553 2554 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2555 if (status == CAM_REQ_CMP) { 2556 periph = cam_periph_find(path, NULL); 2557 xpt_free_path(path); 2558 } else { 2559 periph = NULL; 2560 } 2561 return(periph); 2562 } 2563 2564 /******************************************************************************** 2565 * Name the device at (target) 2566 * 2567 * XXX is this strictly correct? 2568 */ 2569 int 2570 ciss_name_device(struct ciss_softc *sc, int target) 2571 { 2572 struct cam_periph *periph; 2573 2574 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2575 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2576 return(0); 2577 } 2578 sc->ciss_logical[target].cl_name[0] = 0; 2579 return(ENOENT); 2580 } 2581 2582 /************************************************************************ 2583 * Periodic status monitoring. 2584 */ 2585 static void 2586 ciss_periodic(void *arg) 2587 { 2588 struct ciss_softc *sc; 2589 2590 debug_called(1); 2591 2592 sc = (struct ciss_softc *)arg; 2593 2594 /* 2595 * Check the adapter heartbeat. 2596 */ 2597 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2598 sc->ciss_heart_attack++; 2599 debug(0, "adapter heart attack in progress 0x%x/%d", 2600 sc->ciss_heartbeat, sc->ciss_heart_attack); 2601 if (sc->ciss_heart_attack == 3) { 2602 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2603 /* XXX should reset adapter here */ 2604 } 2605 } else { 2606 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2607 sc->ciss_heart_attack = 0; 2608 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2609 } 2610 2611 /* 2612 * If the notify event request has died for some reason, or has 2613 * not started yet, restart it. 2614 */ 2615 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2616 debug(0, "(re)starting Event Notify chain"); 2617 ciss_notify_event(sc); 2618 } 2619 2620 /* 2621 * Reschedule. 2622 */ 2623 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2624 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, 2625 ciss_periodic, sc); 2626 } 2627 2628 /************************************************************************ 2629 * Request a notification response from the adapter. 2630 * 2631 * If (cr) is NULL, this is the first request of the adapter, so 2632 * reset the adapter's message pointer and start with the oldest 2633 * message available. 2634 */ 2635 static void 2636 ciss_notify_event(struct ciss_softc *sc) 2637 { 2638 struct ciss_request *cr; 2639 struct ciss_command *cc; 2640 struct ciss_notify_cdb *cnc; 2641 int error; 2642 2643 debug_called(1); 2644 2645 cr = sc->ciss_periodic_notify; 2646 2647 /* get a request if we don't already have one */ 2648 if (cr == NULL) { 2649 if ((error = ciss_get_request(sc, &cr)) != 0) { 2650 debug(0, "can't get notify event request"); 2651 goto out; 2652 } 2653 sc->ciss_periodic_notify = cr; 2654 cr->cr_complete = ciss_notify_complete; 2655 debug(1, "acquired request %d", cr->cr_tag); 2656 } 2657 2658 /* 2659 * Get a databuffer if we don't already have one, note that the 2660 * adapter command wants a larger buffer than the actual 2661 * structure. 2662 */ 2663 if (cr->cr_data == NULL) { 2664 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2665 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2666 } 2667 2668 /* re-setup the request's command (since we never release it) XXX overkill*/ 2669 ciss_preen_command(cr); 2670 2671 /* (re)build the notify event command */ 2672 cc = CISS_FIND_COMMAND(cr); 2673 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2674 cc->header.address.physical.bus = 0; 2675 cc->header.address.physical.target = 0; 2676 2677 cc->cdb.cdb_length = sizeof(*cnc); 2678 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2679 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2680 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2681 cc->cdb.timeout = 0; /* no timeout, we hope */ 2682 2683 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2684 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2685 cnc->opcode = CISS_OPCODE_READ; 2686 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2687 cnc->timeout = 0; /* no timeout, we hope */ 2688 cnc->synchronous = 0; 2689 cnc->ordered = 0; 2690 cnc->seek_to_oldest = 0; 2691 cnc->new_only = 0; 2692 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2693 2694 /* submit the request */ 2695 error = ciss_start(cr); 2696 2697 out: 2698 if (error) { 2699 if (cr != NULL) { 2700 if (cr->cr_data != NULL) 2701 free(cr->cr_data, CISS_MALLOC_CLASS); 2702 ciss_release_request(cr); 2703 } 2704 sc->ciss_periodic_notify = NULL; 2705 debug(0, "can't submit notify event request"); 2706 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2707 } else { 2708 debug(1, "notify event submitted"); 2709 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2710 } 2711 } 2712 2713 static void 2714 ciss_notify_complete(struct ciss_request *cr) 2715 { 2716 struct ciss_command *cc; 2717 struct ciss_notify *cn; 2718 struct ciss_softc *sc; 2719 int scsi_status; 2720 int command_status; 2721 2722 debug_called(1); 2723 2724 cc = CISS_FIND_COMMAND(cr); 2725 cn = (struct ciss_notify *)cr->cr_data; 2726 sc = cr->cr_sc; 2727 2728 /* 2729 * Report request results, decode status. 2730 */ 2731 ciss_report_request(cr, &command_status, &scsi_status); 2732 2733 /* 2734 * Abort the chain on a fatal error. 2735 * 2736 * XXX which of these are actually errors? 2737 */ 2738 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2739 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2740 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2741 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2742 ciss_name_command_status(command_status)); 2743 ciss_release_request(cr); 2744 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2745 return; 2746 } 2747 2748 /* 2749 * If the adapter gave us a text message, print it. 2750 */ 2751 if (cn->message[0] != 0) 2752 ciss_printf(sc, "*** %.80s\n", cn->message); 2753 2754 debug(0, "notify event class %d subclass %d detail %d", 2755 cn->class, cn->subclass, cn->detail); 2756 2757 /* 2758 * If there's room, save the event for a user-level tool. 2759 */ 2760 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2761 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2762 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2763 } 2764 2765 /* 2766 * Some events are directly of interest to us. 2767 */ 2768 switch (cn->class) { 2769 case CISS_NOTIFY_LOGICAL: 2770 ciss_notify_logical(sc, cn); 2771 break; 2772 case CISS_NOTIFY_PHYSICAL: 2773 ciss_notify_physical(sc, cn); 2774 break; 2775 } 2776 2777 /* 2778 * If the response indicates that the notifier has been aborted, 2779 * release the notifier command. 2780 */ 2781 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2782 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2783 (cn->detail == 1)) { 2784 debug(0, "notifier exiting"); 2785 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2786 ciss_release_request(cr); 2787 sc->ciss_periodic_notify = NULL; 2788 wakeup(&sc->ciss_periodic_notify); 2789 } 2790 2791 /* 2792 * Send a new notify event command, if we're not aborting. 2793 */ 2794 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2795 ciss_notify_event(sc); 2796 } 2797 } 2798 2799 /************************************************************************ 2800 * Abort the Notify Event chain. 2801 * 2802 * Note that we can't just abort the command in progress; we have to 2803 * explicitly issue an Abort Notify Event command in order for the 2804 * adapter to clean up correctly. 2805 * 2806 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2807 * the chain will not restart itself. 2808 */ 2809 static int 2810 ciss_notify_abort(struct ciss_softc *sc) 2811 { 2812 struct ciss_request *cr; 2813 struct ciss_command *cc; 2814 struct ciss_notify_cdb *cnc; 2815 int error, s, command_status, scsi_status; 2816 2817 debug_called(1); 2818 2819 cr = NULL; 2820 error = 0; 2821 2822 /* verify that there's an outstanding command */ 2823 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2824 goto out; 2825 2826 /* get a command to issue the abort with */ 2827 if ((error = ciss_get_request(sc, &cr))) 2828 goto out; 2829 2830 /* get a buffer for the result */ 2831 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2832 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2833 2834 /* build the CDB */ 2835 cc = CISS_FIND_COMMAND(cr); 2836 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2837 cc->header.address.physical.bus = 0; 2838 cc->header.address.physical.target = 0; 2839 cc->cdb.cdb_length = sizeof(*cnc); 2840 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2841 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2842 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2843 cc->cdb.timeout = 0; /* no timeout, we hope */ 2844 2845 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2846 bzero(cnc, sizeof(*cnc)); 2847 cnc->opcode = CISS_OPCODE_WRITE; 2848 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2849 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2850 2851 ciss_print_request(cr); 2852 2853 /* 2854 * Submit the request and wait for it to complete. 2855 */ 2856 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2857 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2858 goto out; 2859 } 2860 2861 /* 2862 * Check response. 2863 */ 2864 ciss_report_request(cr, &command_status, &scsi_status); 2865 switch(command_status) { 2866 case CISS_CMD_STATUS_SUCCESS: 2867 break; 2868 case CISS_CMD_STATUS_INVALID_COMMAND: 2869 /* 2870 * Some older adapters don't support the CISS version of this 2871 * command. Fall back to using the BMIC version. 2872 */ 2873 error = ciss_notify_abort_bmic(sc); 2874 if (error != 0) 2875 goto out; 2876 break; 2877 2878 case CISS_CMD_STATUS_TARGET_STATUS: 2879 /* 2880 * This can happen if the adapter thinks there wasn't an outstanding 2881 * Notify Event command but we did. We clean up here. 2882 */ 2883 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2884 if (sc->ciss_periodic_notify != NULL) 2885 ciss_release_request(sc->ciss_periodic_notify); 2886 error = 0; 2887 goto out; 2888 } 2889 /* FALLTHROUGH */ 2890 2891 default: 2892 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2893 ciss_name_command_status(command_status)); 2894 error = EIO; 2895 goto out; 2896 } 2897 2898 /* 2899 * Sleep waiting for the notifier command to complete. Note 2900 * that if it doesn't, we may end up in a bad situation, since 2901 * the adapter may deliver it later. Also note that the adapter 2902 * requires the Notify Event command to be cancelled in order to 2903 * maintain internal bookkeeping. 2904 */ 2905 s = splcam(); 2906 while (sc->ciss_periodic_notify != NULL) { 2907 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2908 if (error == EWOULDBLOCK) { 2909 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2910 break; 2911 } 2912 } 2913 splx(s); 2914 2915 out: 2916 /* release the cancel request */ 2917 if (cr != NULL) { 2918 if (cr->cr_data != NULL) 2919 free(cr->cr_data, CISS_MALLOC_CLASS); 2920 ciss_release_request(cr); 2921 } 2922 if (error == 0) 2923 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2924 return(error); 2925 } 2926 2927 /************************************************************************ 2928 * Abort the Notify Event chain using a BMIC command. 2929 */ 2930 static int 2931 ciss_notify_abort_bmic(struct ciss_softc *sc) 2932 { 2933 struct ciss_request *cr; 2934 int error, command_status; 2935 2936 debug_called(1); 2937 2938 cr = NULL; 2939 error = 0; 2940 2941 /* verify that there's an outstanding command */ 2942 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2943 goto out; 2944 2945 /* 2946 * Build a BMIC command to cancel the Notify on Event command. 2947 * 2948 * Note that we are sending a CISS opcode here. Odd. 2949 */ 2950 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2951 NULL, 0)) != 0) 2952 goto out; 2953 2954 /* 2955 * Submit the request and wait for it to complete. 2956 */ 2957 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2958 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2959 goto out; 2960 } 2961 2962 /* 2963 * Check response. 2964 */ 2965 ciss_report_request(cr, &command_status, NULL); 2966 switch(command_status) { 2967 case CISS_CMD_STATUS_SUCCESS: 2968 break; 2969 default: 2970 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2971 ciss_name_command_status(command_status)); 2972 error = EIO; 2973 goto out; 2974 } 2975 2976 out: 2977 if (cr != NULL) 2978 ciss_release_request(cr); 2979 return(error); 2980 } 2981 2982 /************************************************************************ 2983 * Handle a notify event relating to the status of a logical drive. 2984 * 2985 * XXX need to be able to defer some of these to properly handle 2986 * calling the "ID Physical drive" command, unless the 'extended' 2987 * drive IDs are always in BIG_MAP format. 2988 */ 2989 static void 2990 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 2991 { 2992 struct ciss_ldrive *ld; 2993 int ostatus; 2994 2995 debug_called(2); 2996 2997 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 2998 2999 switch (cn->subclass) { 3000 case CISS_NOTIFY_LOGICAL_STATUS: 3001 switch (cn->detail) { 3002 case 0: 3003 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3004 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3005 cn->data.logical_status.logical_drive, ld->cl_name, 3006 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3007 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3008 cn->data.logical_status.spare_state, 3009 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3010 3011 /* 3012 * Update our idea of the drive's status. 3013 */ 3014 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3015 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3016 if (ld->cl_lstatus != NULL) 3017 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3018 3019 #if 0 3020 /* 3021 * Have CAM rescan the drive if its status has changed. 3022 */ 3023 if (ostatus != ld->cl_status) 3024 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3025 #endif 3026 3027 break; 3028 3029 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3030 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3031 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3032 cn->data.logical_status.logical_drive, ld->cl_name); 3033 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3034 break; 3035 3036 case 2: 3037 case 3: 3038 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3039 cn->data.rebuild_aborted.logical_drive, 3040 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3041 (cn->detail == 2) ? "read" : "write"); 3042 break; 3043 } 3044 break; 3045 3046 case CISS_NOTIFY_LOGICAL_ERROR: 3047 if (cn->detail == 0) { 3048 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3049 cn->data.io_error.logical_drive, 3050 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3051 cn->data.io_error.failure_bus, 3052 cn->data.io_error.failure_drive); 3053 /* XXX should we take the drive down at this point, or will we be told? */ 3054 } 3055 break; 3056 3057 case CISS_NOTIFY_LOGICAL_SURFACE: 3058 if (cn->detail == 0) 3059 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3060 cn->data.consistency_completed.logical_drive, 3061 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3062 break; 3063 } 3064 } 3065 3066 /************************************************************************ 3067 * Handle a notify event relating to the status of a physical drive. 3068 */ 3069 static void 3070 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3071 { 3072 3073 } 3074 3075 /************************************************************************ 3076 * Print a request. 3077 */ 3078 static void 3079 ciss_print_request(struct ciss_request *cr) 3080 { 3081 struct ciss_softc *sc; 3082 struct ciss_command *cc; 3083 int i; 3084 3085 sc = cr->cr_sc; 3086 cc = CISS_FIND_COMMAND(cr); 3087 3088 ciss_printf(sc, "REQUEST @ %p\n", cr); 3089 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3090 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3091 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3092 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3093 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3094 switch(cc->header.address.mode.mode) { 3095 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3096 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3097 ciss_printf(sc, " physical bus %d target %d\n", 3098 cc->header.address.physical.bus, cc->header.address.physical.target); 3099 break; 3100 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3101 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3102 break; 3103 } 3104 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3105 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3106 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3107 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3108 cc->cdb.cdb_length, 3109 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3110 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3111 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3112 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3113 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3114 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3115 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3116 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3117 3118 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3119 /* XXX print error info */ 3120 } else { 3121 /* since we don't use chained s/g, don't support it here */ 3122 for (i = 0; i < cc->header.sg_in_list; i++) { 3123 if ((i % 4) == 0) 3124 ciss_printf(sc, " "); 3125 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3126 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3127 printf("\n"); 3128 } 3129 } 3130 } 3131 3132 /************************************************************************ 3133 * Print information about the status of a logical drive. 3134 */ 3135 static void 3136 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3137 { 3138 int bus, target, i; 3139 3140 if (ld->cl_lstatus == NULL) { 3141 printf("does not exist\n"); 3142 return; 3143 } 3144 3145 /* print drive status */ 3146 switch(ld->cl_lstatus->status) { 3147 case CISS_LSTATUS_OK: 3148 printf("online\n"); 3149 break; 3150 case CISS_LSTATUS_INTERIM_RECOVERY: 3151 printf("in interim recovery mode\n"); 3152 break; 3153 case CISS_LSTATUS_READY_RECOVERY: 3154 printf("ready to begin recovery\n"); 3155 break; 3156 case CISS_LSTATUS_RECOVERING: 3157 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3158 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3159 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3160 bus, target, ld->cl_lstatus->blocks_to_recover); 3161 break; 3162 case CISS_LSTATUS_EXPANDING: 3163 printf("being expanded, %u blocks remaining\n", 3164 ld->cl_lstatus->blocks_to_recover); 3165 break; 3166 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3167 printf("queued for expansion\n"); 3168 break; 3169 case CISS_LSTATUS_FAILED: 3170 printf("queued for expansion\n"); 3171 break; 3172 case CISS_LSTATUS_WRONG_PDRIVE: 3173 printf("wrong physical drive inserted\n"); 3174 break; 3175 case CISS_LSTATUS_MISSING_PDRIVE: 3176 printf("missing a needed physical drive\n"); 3177 break; 3178 case CISS_LSTATUS_BECOMING_READY: 3179 printf("becoming ready\n"); 3180 break; 3181 } 3182 3183 /* print failed physical drives */ 3184 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3185 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3186 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3187 if (bus == -1) 3188 continue; 3189 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3190 ld->cl_lstatus->drive_failure_map[i]); 3191 } 3192 } 3193 3194 #ifdef CISS_DEBUG 3195 /************************************************************************ 3196 * Print information about the controller/driver. 3197 */ 3198 static void 3199 ciss_print_adapter(struct ciss_softc *sc) 3200 { 3201 int i; 3202 3203 ciss_printf(sc, "ADAPTER:\n"); 3204 for (i = 0; i < CISSQ_COUNT; i++) { 3205 ciss_printf(sc, "%s %d/%d\n", 3206 i == 0 ? "free" : 3207 i == 1 ? "busy" : "complete", 3208 sc->ciss_qstat[i].q_length, 3209 sc->ciss_qstat[i].q_max); 3210 } 3211 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3212 ciss_printf(sc, "notify_head/tail %d/%d\n", 3213 sc->ciss_notify_head, sc->ciss_notify_tail); 3214 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3215 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3216 3217 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3218 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3219 ciss_print_ldrive(sc, sc->ciss_logical + i); 3220 } 3221 3222 for (i = 1; i < sc->ciss_max_requests; i++) 3223 ciss_print_request(sc->ciss_request + i); 3224 3225 } 3226 3227 /* DDB hook */ 3228 void 3229 ciss_print0(void) 3230 { 3231 struct ciss_softc *sc; 3232 3233 sc = devclass_get_softc(devclass_find("ciss"), 0); 3234 if (sc == NULL) { 3235 printf("no ciss controllers\n"); 3236 } else { 3237 ciss_print_adapter(sc); 3238 } 3239 } 3240 #endif 3241 3242 /************************************************************************ 3243 * Return a name for a logical drive status value. 3244 */ 3245 static const char * 3246 ciss_name_ldrive_status(int status) 3247 { 3248 switch (status) { 3249 case CISS_LSTATUS_OK: 3250 return("OK"); 3251 case CISS_LSTATUS_FAILED: 3252 return("failed"); 3253 case CISS_LSTATUS_NOT_CONFIGURED: 3254 return("not configured"); 3255 case CISS_LSTATUS_INTERIM_RECOVERY: 3256 return("interim recovery"); 3257 case CISS_LSTATUS_READY_RECOVERY: 3258 return("ready for recovery"); 3259 case CISS_LSTATUS_RECOVERING: 3260 return("recovering"); 3261 case CISS_LSTATUS_WRONG_PDRIVE: 3262 return("wrong physical drive inserted"); 3263 case CISS_LSTATUS_MISSING_PDRIVE: 3264 return("missing physical drive"); 3265 case CISS_LSTATUS_EXPANDING: 3266 return("expanding"); 3267 case CISS_LSTATUS_BECOMING_READY: 3268 return("becoming ready"); 3269 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3270 return("queued for expansion"); 3271 } 3272 return("unknown status"); 3273 } 3274 3275 /************************************************************************ 3276 * Return an online/offline/nonexistent value for a logical drive 3277 * status value. 3278 */ 3279 static int 3280 ciss_decode_ldrive_status(int status) 3281 { 3282 switch(status) { 3283 case CISS_LSTATUS_NOT_CONFIGURED: 3284 return(CISS_LD_NONEXISTENT); 3285 3286 case CISS_LSTATUS_OK: 3287 case CISS_LSTATUS_INTERIM_RECOVERY: 3288 case CISS_LSTATUS_READY_RECOVERY: 3289 case CISS_LSTATUS_RECOVERING: 3290 case CISS_LSTATUS_EXPANDING: 3291 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3292 return(CISS_LD_ONLINE); 3293 3294 case CISS_LSTATUS_FAILED: 3295 case CISS_LSTATUS_WRONG_PDRIVE: 3296 case CISS_LSTATUS_MISSING_PDRIVE: 3297 case CISS_LSTATUS_BECOMING_READY: 3298 default: 3299 return(CISS_LD_OFFLINE); 3300 } 3301 } 3302 3303 3304 /************************************************************************ 3305 * Return a name for a logical drive's organisation. 3306 */ 3307 static const char * 3308 ciss_name_ldrive_org(int org) 3309 { 3310 switch(org) { 3311 case CISS_LDRIVE_RAID0: 3312 return("RAID 0"); 3313 case CISS_LDRIVE_RAID1: 3314 return("RAID 1"); 3315 case CISS_LDRIVE_RAID4: 3316 return("RAID 4"); 3317 case CISS_LDRIVE_RAID5: 3318 return("RAID 5"); 3319 } 3320 return("unkown"); 3321 } 3322 3323 /************************************************************************ 3324 * Return a name for a command status value. 3325 */ 3326 static const char * 3327 ciss_name_command_status(int status) 3328 { 3329 switch(status) { 3330 case CISS_CMD_STATUS_SUCCESS: 3331 return("success"); 3332 case CISS_CMD_STATUS_TARGET_STATUS: 3333 return("target status"); 3334 case CISS_CMD_STATUS_DATA_UNDERRUN: 3335 return("data underrun"); 3336 case CISS_CMD_STATUS_DATA_OVERRUN: 3337 return("data overrun"); 3338 case CISS_CMD_STATUS_INVALID_COMMAND: 3339 return("invalid command"); 3340 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3341 return("protocol error"); 3342 case CISS_CMD_STATUS_HARDWARE_ERROR: 3343 return("hardware error"); 3344 case CISS_CMD_STATUS_CONNECTION_LOST: 3345 return("connection lost"); 3346 case CISS_CMD_STATUS_ABORTED: 3347 return("aborted"); 3348 case CISS_CMD_STATUS_ABORT_FAILED: 3349 return("abort failed"); 3350 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3351 return("unsolicited abort"); 3352 case CISS_CMD_STATUS_TIMEOUT: 3353 return("timeout"); 3354 case CISS_CMD_STATUS_UNABORTABLE: 3355 return("unabortable"); 3356 } 3357 return("unknown status"); 3358 } 3359 3360 /************************************************************************ 3361 * Handle an open on the control device. 3362 */ 3363 static int 3364 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3365 { 3366 struct ciss_softc *sc; 3367 3368 debug_called(1); 3369 3370 sc = (struct ciss_softc *)dev->si_drv1; 3371 3372 /* we might want to veto if someone already has us open */ 3373 3374 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3375 return(0); 3376 } 3377 3378 /************************************************************************ 3379 * Handle the last close on the control device. 3380 */ 3381 static int 3382 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3383 { 3384 struct ciss_softc *sc; 3385 3386 debug_called(1); 3387 3388 sc = (struct ciss_softc *)dev->si_drv1; 3389 3390 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3391 return (0); 3392 } 3393 3394 /******************************************************************************** 3395 * Handle adapter-specific control operations. 3396 * 3397 * Note that the API here is compatible with the Linux driver, in order to 3398 * simplify the porting of Compaq's userland tools. 3399 */ 3400 static int 3401 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3402 { 3403 struct ciss_softc *sc; 3404 int error; 3405 3406 debug_called(1); 3407 3408 sc = (struct ciss_softc *)dev->si_drv1; 3409 error = 0; 3410 3411 switch(cmd) { 3412 case CCISS_GETPCIINFO: 3413 { 3414 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3415 3416 pis->bus = pci_get_bus(sc->ciss_dev); 3417 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3418 pis->board_id = pci_get_devid(sc->ciss_dev); 3419 3420 break; 3421 } 3422 3423 case CCISS_GETINTINFO: 3424 { 3425 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3426 3427 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3428 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3429 3430 break; 3431 } 3432 3433 case CCISS_SETINTINFO: 3434 { 3435 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3436 3437 if ((cis->delay == 0) && (cis->count == 0)) { 3438 error = EINVAL; 3439 break; 3440 } 3441 3442 /* 3443 * XXX apparently this is only safe if the controller is idle, 3444 * we should suspend it before doing this. 3445 */ 3446 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3447 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3448 3449 if (ciss_update_config(sc)) 3450 error = EIO; 3451 3452 /* XXX resume the controller here */ 3453 break; 3454 } 3455 3456 case CCISS_GETNODENAME: 3457 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3458 sizeof(NodeName_type)); 3459 break; 3460 3461 case CCISS_SETNODENAME: 3462 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3463 sizeof(NodeName_type)); 3464 if (ciss_update_config(sc)) 3465 error = EIO; 3466 break; 3467 3468 case CCISS_GETHEARTBEAT: 3469 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3470 break; 3471 3472 case CCISS_GETBUSTYPES: 3473 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3474 break; 3475 3476 case CCISS_GETFIRMVER: 3477 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3478 sizeof(FirmwareVer_type)); 3479 break; 3480 3481 case CCISS_GETDRIVERVER: 3482 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3483 break; 3484 3485 case CCISS_REVALIDVOLS: 3486 /* 3487 * This is a bit ugly; to do it "right" we really need 3488 * to find any disks that have changed, kick CAM off them, 3489 * then rescan only these disks. It'd be nice if they 3490 * a) told us which disk(s) they were going to play with, 3491 * and b) which ones had arrived. 8( 3492 */ 3493 break; 3494 3495 case CCISS_PASSTHRU: 3496 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3497 break; 3498 3499 default: 3500 debug(0, "unknown ioctl 0x%lx", cmd); 3501 3502 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3503 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3504 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3505 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3506 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3507 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3508 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3509 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3510 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3511 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3512 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3513 3514 error = ENOIOCTL; 3515 break; 3516 } 3517 3518 return(error); 3519 } 3520