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 1.22 2006/12/22 23:26:23 swildner 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/device.h> 75 #include <sys/malloc.h> 76 #include <sys/kernel.h> 77 #include <sys/bus.h> 78 #include <sys/conf.h> 79 #include <sys/devicestat.h> 80 #include <sys/stat.h> 81 #include <sys/rman.h> 82 83 #include <bus/cam/cam.h> 84 #include <bus/cam/cam_ccb.h> 85 #include <bus/cam/cam_periph.h> 86 #include <bus/cam/cam_sim.h> 87 #include <bus/cam/cam_xpt_sim.h> 88 #include <bus/cam/scsi/scsi_all.h> 89 #include <bus/cam/scsi/scsi_message.h> 90 91 #include <machine/clock.h> 92 #include <machine/endian.h> 93 94 #include <bus/pci/pcireg.h> 95 #include <bus/pci/pcivar.h> 96 97 #include "cissreg.h" 98 #include "cissvar.h" 99 #include "cissio.h" 100 101 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 102 103 /* pci interface */ 104 static int ciss_lookup(device_t dev); 105 static int ciss_probe(device_t dev); 106 static int ciss_attach(device_t dev); 107 static int ciss_detach(device_t dev); 108 static int ciss_shutdown(device_t dev); 109 110 /* (de)initialisation functions, control wrappers */ 111 static int ciss_init_pci(struct ciss_softc *sc); 112 static int ciss_wait_adapter(struct ciss_softc *sc); 113 static int ciss_flush_adapter(struct ciss_softc *sc); 114 static int ciss_init_requests(struct ciss_softc *sc); 115 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 116 int nseg, int error); 117 static int ciss_identify_adapter(struct ciss_softc *sc); 118 static int ciss_init_logical(struct ciss_softc *sc); 119 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 120 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 121 static int ciss_update_config(struct ciss_softc *sc); 122 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 123 static void ciss_accept_media_complete(struct ciss_request *cr); 124 static void ciss_free(struct ciss_softc *sc); 125 126 /* request submission/completion */ 127 static int ciss_start(struct ciss_request *cr); 128 static void ciss_done(struct ciss_softc *sc); 129 static void ciss_intr(void *arg); 130 static void ciss_complete(struct ciss_softc *sc); 131 static int ciss_report_request(struct ciss_request *cr, int *command_status, 132 int *scsi_status); 133 static int ciss_synch_request(struct ciss_request *cr, int timeout); 134 static int ciss_poll_request(struct ciss_request *cr, int timeout); 135 static int ciss_wait_request(struct ciss_request *cr, int timeout); 136 #if 0 137 static int ciss_abort_request(struct ciss_request *cr); 138 #endif 139 140 /* request queueing */ 141 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 142 static void ciss_preen_command(struct ciss_request *cr); 143 static void ciss_release_request(struct ciss_request *cr); 144 145 /* request helpers */ 146 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 147 int opcode, void **bufp, size_t bufsize); 148 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 149 150 /* DMA map/unmap */ 151 static int ciss_map_request(struct ciss_request *cr); 152 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 153 int nseg, int error); 154 static void ciss_unmap_request(struct ciss_request *cr); 155 156 /* CAM interface */ 157 static int ciss_cam_init(struct ciss_softc *sc); 158 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 159 static void ciss_cam_rescan_all(struct ciss_softc *sc); 160 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 161 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 162 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 163 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 164 static void ciss_cam_poll(struct cam_sim *sim); 165 static void ciss_cam_complete(struct ciss_request *cr); 166 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 167 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 168 static int ciss_name_device(struct ciss_softc *sc, int target); 169 170 /* periodic status monitoring */ 171 static void ciss_periodic(void *arg); 172 static void ciss_notify_event(struct ciss_softc *sc); 173 static void ciss_notify_complete(struct ciss_request *cr); 174 static int ciss_notify_abort(struct ciss_softc *sc); 175 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 176 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 177 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 178 179 /* debugging output */ 180 static void ciss_print_request(struct ciss_request *cr); 181 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 182 static const char *ciss_name_ldrive_status(int status); 183 static int ciss_decode_ldrive_status(int status); 184 static const char *ciss_name_ldrive_org(int org); 185 static const char *ciss_name_command_status(int status); 186 187 /* 188 * PCI bus interface. 189 */ 190 static device_method_t ciss_methods[] = { 191 /* Device interface */ 192 DEVMETHOD(device_probe, ciss_probe), 193 DEVMETHOD(device_attach, ciss_attach), 194 DEVMETHOD(device_detach, ciss_detach), 195 DEVMETHOD(device_shutdown, ciss_shutdown), 196 { 0, 0 } 197 }; 198 199 static driver_t ciss_pci_driver = { 200 "ciss", 201 ciss_methods, 202 sizeof(struct ciss_softc) 203 }; 204 205 static devclass_t ciss_devclass; 206 207 DECLARE_DUMMY_MODULE(ciss); 208 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 209 210 /* 211 * Control device interface. 212 */ 213 static d_open_t ciss_open; 214 static d_close_t ciss_close; 215 static d_ioctl_t ciss_ioctl; 216 217 #define CISS_CDEV_MAJOR 166 218 219 static struct dev_ops ciss_ops = { 220 { "ciss", CISS_CDEV_MAJOR, 0 }, 221 .d_open = ciss_open, 222 .d_close = ciss_close, 223 .d_ioctl = ciss_ioctl 224 }; 225 226 /************************************************************************ 227 * CISS adapters amazingly don't have a defined programming interface 228 * value. (One could say some very despairing things about PCI and 229 * people just not getting the general idea.) So we are forced to 230 * stick with matching against subvendor/subdevice, and thus have to 231 * be updated for every new CISS adapter that appears. 232 */ 233 #define CISS_BOARD_SA5 (1<<0) 234 #define CISS_BOARD_SA5B (1<<1) 235 236 static struct 237 { 238 u_int16_t subvendor; 239 u_int16_t subdevice; 240 int flags; 241 char *desc; 242 } ciss_vendor_data[] = { 243 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 244 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 245 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 246 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 247 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 248 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 249 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 250 { 0, 0, 0, NULL } 251 }; 252 253 /************************************************************************ 254 * Find a match for the device in our list of known adapters. 255 */ 256 static int 257 ciss_lookup(device_t dev) 258 { 259 int i; 260 261 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 262 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 263 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 264 return(i); 265 } 266 return(-1); 267 } 268 269 /************************************************************************ 270 * Match a known CISS adapter. 271 */ 272 static int 273 ciss_probe(device_t dev) 274 { 275 int i; 276 277 i = ciss_lookup(dev); 278 if (i != -1) { 279 device_set_desc(dev, ciss_vendor_data[i].desc); 280 return(-10); 281 } 282 return(ENOENT); 283 } 284 285 /************************************************************************ 286 * Attach the driver to this adapter. 287 */ 288 static int 289 ciss_attach(device_t dev) 290 { 291 struct ciss_softc *sc; 292 int i, error; 293 294 debug_called(1); 295 296 #ifdef CISS_DEBUG 297 /* print structure/union sizes */ 298 debug_struct(ciss_command); 299 debug_struct(ciss_header); 300 debug_union(ciss_device_address); 301 debug_struct(ciss_cdb); 302 debug_struct(ciss_report_cdb); 303 debug_struct(ciss_notify_cdb); 304 debug_struct(ciss_notify); 305 debug_struct(ciss_message_cdb); 306 debug_struct(ciss_error_info_pointer); 307 debug_struct(ciss_error_info); 308 debug_struct(ciss_sg_entry); 309 debug_struct(ciss_config_table); 310 debug_struct(ciss_bmic_cdb); 311 debug_struct(ciss_bmic_id_ldrive); 312 debug_struct(ciss_bmic_id_lstatus); 313 debug_struct(ciss_bmic_id_table); 314 debug_struct(ciss_bmic_id_pdrive); 315 debug_struct(ciss_bmic_blink_pdrive); 316 debug_struct(ciss_bmic_flush_cache); 317 debug_const(CISS_MAX_REQUESTS); 318 debug_const(CISS_MAX_LOGICAL); 319 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 320 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 321 debug_const(CISS_COMMAND_ALLOC_SIZE); 322 debug_const(CISS_COMMAND_SG_LENGTH); 323 324 debug_type(cciss_pci_info_struct); 325 debug_type(cciss_coalint_struct); 326 debug_type(cciss_coalint_struct); 327 debug_type(NodeName_type); 328 debug_type(NodeName_type); 329 debug_type(Heartbeat_type); 330 debug_type(BusTypes_type); 331 debug_type(FirmwareVer_type); 332 debug_type(DriverVer_type); 333 debug_type(IOCTL_Command_struct); 334 #endif 335 336 sc = device_get_softc(dev); 337 sc->ciss_dev = dev; 338 callout_init(&sc->ciss_periodic); 339 340 /* 341 * Work out adapter type. 342 */ 343 i = ciss_lookup(dev); 344 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 345 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 346 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 347 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 348 } else { 349 /* really an error on our part */ 350 ciss_printf(sc, "unable to determine hardware type\n"); 351 error = ENXIO; 352 goto out; 353 } 354 355 /* 356 * Do PCI-specific init. 357 */ 358 if ((error = ciss_init_pci(sc)) != 0) 359 goto out; 360 361 /* 362 * Initialise driver queues. 363 */ 364 ciss_initq_free(sc); 365 ciss_initq_busy(sc); 366 ciss_initq_complete(sc); 367 368 /* 369 * Initialise command/request pool. 370 */ 371 if ((error = ciss_init_requests(sc)) != 0) 372 goto out; 373 374 /* 375 * Get adapter information. 376 */ 377 if ((error = ciss_identify_adapter(sc)) != 0) 378 goto out; 379 380 /* 381 * Build our private table of logical devices. 382 */ 383 if ((error = ciss_init_logical(sc)) != 0) 384 goto out; 385 386 /* 387 * Enable interrupts so that the CAM scan can complete. 388 */ 389 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 390 391 /* 392 * Initialise the CAM interface. 393 */ 394 if ((error = ciss_cam_init(sc)) != 0) 395 goto out; 396 397 /* 398 * Start the heartbeat routine and event chain. 399 */ 400 ciss_periodic(sc); 401 402 /* 403 * Create the control device. 404 */ 405 dev_ops_add(&ciss_ops, -1, device_get_unit(sc->ciss_dev)); 406 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 407 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 408 "ciss%d", device_get_unit(sc->ciss_dev)); 409 sc->ciss_dev_t->si_drv1 = sc; 410 411 /* 412 * The adapter is running; synchronous commands can now sleep 413 * waiting for an interrupt to signal completion. 414 */ 415 sc->ciss_flags |= CISS_FLAG_RUNNING; 416 417 error = 0; 418 out: 419 if (error != 0) 420 ciss_free(sc); 421 return(error); 422 } 423 424 /************************************************************************ 425 * Detach the driver from this adapter. 426 */ 427 static int 428 ciss_detach(device_t dev) 429 { 430 struct ciss_softc *sc = device_get_softc(dev); 431 432 debug_called(1); 433 434 /* flush adapter cache */ 435 ciss_flush_adapter(sc); 436 437 /* release all resources */ 438 ciss_free(sc); 439 440 return(0); 441 442 } 443 444 /************************************************************************ 445 * Prepare adapter for system shutdown. 446 */ 447 static int 448 ciss_shutdown(device_t dev) 449 { 450 struct ciss_softc *sc = device_get_softc(dev); 451 452 debug_called(1); 453 454 /* flush adapter cache */ 455 ciss_flush_adapter(sc); 456 457 return(0); 458 } 459 460 /************************************************************************ 461 * Perform PCI-specific attachment actions. 462 */ 463 static int 464 ciss_init_pci(struct ciss_softc *sc) 465 { 466 uintptr_t cbase, csize, cofs; 467 int error; 468 469 debug_called(1); 470 471 /* 472 * Allocate register window first (we need this to find the config 473 * struct). 474 */ 475 error = ENXIO; 476 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 477 if ((sc->ciss_regs_resource = 478 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 479 0, ~0, 1, RF_ACTIVE)) == NULL) { 480 ciss_printf(sc, "can't allocate register window\n"); 481 return(ENXIO); 482 } 483 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 484 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 485 486 /* 487 * Find the BAR holding the config structure. If it's not the one 488 * we already mapped for registers, map it too. 489 */ 490 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 491 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 492 if ((sc->ciss_cfg_resource = 493 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 494 0, ~0, 1, RF_ACTIVE)) == NULL) { 495 ciss_printf(sc, "can't allocate config window\n"); 496 return(ENXIO); 497 } 498 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 499 csize = rman_get_end(sc->ciss_cfg_resource) - 500 rman_get_start(sc->ciss_cfg_resource) + 1; 501 } else { 502 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 503 csize = rman_get_end(sc->ciss_regs_resource) - 504 rman_get_start(sc->ciss_regs_resource) + 1; 505 } 506 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 507 508 /* 509 * Use the base/size/offset values we just calculated to 510 * sanity-check the config structure. If it's OK, point to it. 511 */ 512 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 513 ciss_printf(sc, "config table outside window\n"); 514 return(ENXIO); 515 } 516 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 517 debug(1, "config struct at %p", sc->ciss_cfg); 518 519 /* 520 * Validate the config structure. If we supported other transport 521 * methods, we could select amongst them at this point in time. 522 */ 523 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 524 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 525 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 526 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 527 return(ENXIO); 528 } 529 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 530 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 531 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 532 sc->ciss_cfg->valence); 533 return(ENXIO); 534 } 535 536 /* 537 * Put the board into simple mode, and tell it we're using the low 538 * 4GB of RAM. Set the default interrupt coalescing options. 539 */ 540 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 541 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 542 return(ENXIO); 543 } 544 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 545 sc->ciss_cfg->command_physlimit = 0; 546 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 547 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 548 549 if (ciss_update_config(sc)) { 550 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 551 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 552 return(ENXIO); 553 } 554 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 555 ciss_printf(sc, 556 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 557 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 558 return(ENXIO); 559 } 560 561 /* 562 * Wait for the adapter to come ready. 563 */ 564 if ((error = ciss_wait_adapter(sc)) != 0) 565 return(error); 566 567 /* 568 * Turn off interrupts before we go routing anything. 569 */ 570 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 571 572 /* 573 * Allocate and set up our interrupt. 574 */ 575 sc->ciss_irq_rid = 0; 576 if ((sc->ciss_irq_resource = 577 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 578 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 579 ciss_printf(sc, "can't allocate interrupt\n"); 580 return(ENXIO); 581 } 582 error = bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 583 0, ciss_intr, sc, 584 &sc->ciss_intr, NULL); 585 if (error) { 586 ciss_printf(sc, "can't set up interrupt\n"); 587 return(ENXIO); 588 } 589 590 /* 591 * Allocate the parent bus DMA tag appropriate for our PCI 592 * interface. 593 * 594 * Note that "simple" adapters can only address within a 32-bit 595 * span. 596 */ 597 if (bus_dma_tag_create(NULL, /* parent */ 598 1, 0, /* alignment, boundary */ 599 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 600 BUS_SPACE_MAXADDR, /* highaddr */ 601 NULL, NULL, /* filter, filterarg */ 602 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 603 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 604 BUS_DMA_ALLOCNOW, /* flags */ 605 &sc->ciss_parent_dmat)) { 606 ciss_printf(sc, "can't allocate parent DMA tag\n"); 607 return(ENOMEM); 608 } 609 610 /* 611 * Create DMA tag for mapping buffers into adapter-addressable 612 * space. 613 */ 614 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 615 1, 0, /* alignment, boundary */ 616 BUS_SPACE_MAXADDR, /* lowaddr */ 617 BUS_SPACE_MAXADDR, /* highaddr */ 618 NULL, NULL, /* filter, filterarg */ 619 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 620 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 621 0, /* flags */ 622 &sc->ciss_buffer_dmat)) { 623 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 624 return(ENOMEM); 625 } 626 return(0); 627 } 628 629 /************************************************************************ 630 * Wait for the adapter to come ready. 631 */ 632 static int 633 ciss_wait_adapter(struct ciss_softc *sc) 634 { 635 int i; 636 637 debug_called(1); 638 639 /* 640 * Wait for the adapter to come ready. 641 */ 642 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 643 ciss_printf(sc, "waiting for adapter to come ready...\n"); 644 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 645 DELAY(1000000); /* one second */ 646 if (i > 30) { 647 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 648 return(EIO); 649 } 650 } 651 } 652 return(0); 653 } 654 655 /************************************************************************ 656 * Flush the adapter cache. 657 */ 658 static int 659 ciss_flush_adapter(struct ciss_softc *sc) 660 { 661 struct ciss_request *cr; 662 struct ciss_bmic_flush_cache *cbfc; 663 int error, command_status; 664 665 debug_called(1); 666 667 cr = NULL; 668 cbfc = NULL; 669 670 /* 671 * Build a BMIC request to flush the cache. We don't disable 672 * it, as we may be going to do more I/O (eg. we are emulating 673 * the Synchronise Cache command). 674 */ 675 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 676 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 677 (void **)&cbfc, sizeof(*cbfc))) != 0) 678 goto out; 679 680 /* 681 * Submit the request and wait for it to complete. 682 */ 683 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 684 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 685 goto out; 686 } 687 688 /* 689 * Check response. 690 */ 691 ciss_report_request(cr, &command_status, NULL); 692 switch(command_status) { 693 case CISS_CMD_STATUS_SUCCESS: 694 break; 695 default: 696 ciss_printf(sc, "error flushing cache (%s)\n", 697 ciss_name_command_status(command_status)); 698 error = EIO; 699 goto out; 700 } 701 702 out: 703 if (cbfc != NULL) 704 kfree(cbfc, CISS_MALLOC_CLASS); 705 if (cr != NULL) 706 ciss_release_request(cr); 707 return(error); 708 } 709 710 /************************************************************************ 711 * Allocate memory for the adapter command structures, initialise 712 * the request structures. 713 * 714 * Note that the entire set of commands are allocated in a single 715 * contiguous slab. 716 */ 717 static int 718 ciss_init_requests(struct ciss_softc *sc) 719 { 720 struct ciss_request *cr; 721 int i; 722 723 debug_called(1); 724 725 /* 726 * Calculate the number of request structures/commands we are 727 * going to provide for this adapter. 728 */ 729 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 730 731 if (1/*bootverbose*/) 732 ciss_printf(sc, "using %d of %d available commands\n", 733 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 734 735 /* 736 * Create the DMA tag for commands. 737 */ 738 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 739 1, 0, /* alignment, boundary */ 740 BUS_SPACE_MAXADDR, /* lowaddr */ 741 BUS_SPACE_MAXADDR, /* highaddr */ 742 NULL, NULL, /* filter, filterarg */ 743 CISS_COMMAND_ALLOC_SIZE * 744 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 745 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 746 0, /* flags */ 747 &sc->ciss_command_dmat)) { 748 ciss_printf(sc, "can't allocate command DMA tag\n"); 749 return(ENOMEM); 750 } 751 /* 752 * Allocate memory and make it available for DMA. 753 */ 754 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 755 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 756 ciss_printf(sc, "can't allocate command memory\n"); 757 return(ENOMEM); 758 } 759 bus_dmamap_create(sc->ciss_command_dmat, 0, &sc->ciss_command_map); 760 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 761 sizeof(struct ciss_command) * sc->ciss_max_requests, 762 ciss_command_map_helper, sc, 0); 763 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 764 765 /* 766 * Set up the request and command structures, push requests onto 767 * the free queue. 768 */ 769 for (i = 1; i < sc->ciss_max_requests; i++) { 770 cr = &sc->ciss_request[i]; 771 cr->cr_sc = sc; 772 cr->cr_tag = i; 773 ciss_enqueue_free(cr); 774 } 775 return(0); 776 } 777 778 static void 779 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 780 { 781 struct ciss_softc *sc = (struct ciss_softc *)arg; 782 783 sc->ciss_command_phys = segs->ds_addr; 784 } 785 786 /************************************************************************ 787 * Identify the adapter, print some information about it. 788 */ 789 static int 790 ciss_identify_adapter(struct ciss_softc *sc) 791 { 792 struct ciss_request *cr; 793 int error, command_status; 794 795 debug_called(1); 796 797 cr = NULL; 798 799 /* 800 * Get a request, allocate storage for the adapter data. 801 */ 802 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 803 (void **)&sc->ciss_id, 804 sizeof(*sc->ciss_id))) != 0) 805 goto out; 806 807 /* 808 * Submit the request and wait for it to complete. 809 */ 810 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 811 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 812 goto out; 813 } 814 815 /* 816 * Check response. 817 */ 818 ciss_report_request(cr, &command_status, NULL); 819 switch(command_status) { 820 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 821 break; 822 case CISS_CMD_STATUS_DATA_UNDERRUN: 823 case CISS_CMD_STATUS_DATA_OVERRUN: 824 ciss_printf(sc, "data over/underrun reading adapter information\n"); 825 default: 826 ciss_printf(sc, "error reading adapter information (%s)\n", 827 ciss_name_command_status(command_status)); 828 error = EIO; 829 goto out; 830 } 831 832 /* sanity-check reply */ 833 if (!sc->ciss_id->big_map_supported) { 834 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 835 error = ENXIO; 836 goto out; 837 } 838 839 #if 0 840 /* XXX later revisions may not need this */ 841 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 842 #endif 843 844 /* XXX only really required for old 5300 adapters? */ 845 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 846 847 /* print information */ 848 if (1/*bootverbose*/) { 849 ciss_printf(sc, " %d logical drive%s configured\n", 850 sc->ciss_id->configured_logical_drives, 851 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 852 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 853 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 854 855 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 856 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 857 ciss_printf(sc, " supported I/O methods 0x%b\n", 858 sc->ciss_cfg->supported_methods, 859 "\20\1READY\2simple\3performant\4MEMQ\n"); 860 ciss_printf(sc, " active I/O method 0x%b\n", 861 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 862 ciss_printf(sc, " 4G page base 0x%08x\n", 863 sc->ciss_cfg->command_physlimit); 864 ciss_printf(sc, " interrupt coalesce delay %dus\n", 865 sc->ciss_cfg->interrupt_coalesce_delay); 866 ciss_printf(sc, " interrupt coalesce count %d\n", 867 sc->ciss_cfg->interrupt_coalesce_count); 868 ciss_printf(sc, " max outstanding commands %d\n", 869 sc->ciss_cfg->max_outstanding_commands); 870 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 871 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 872 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 873 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 874 } 875 876 out: 877 if (error) { 878 if (sc->ciss_id != NULL) { 879 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 880 sc->ciss_id = NULL; 881 } 882 } 883 if (cr != NULL) 884 ciss_release_request(cr); 885 return(error); 886 } 887 888 /************************************************************************ 889 * Find logical drives on the adapter. 890 */ 891 static int 892 ciss_init_logical(struct ciss_softc *sc) 893 { 894 struct ciss_request *cr; 895 struct ciss_command *cc; 896 struct ciss_report_cdb *crc; 897 struct ciss_lun_report *cll; 898 int error, i; 899 size_t report_size; 900 int ndrives; 901 int command_status; 902 903 debug_called(1); 904 905 cr = NULL; 906 cll = NULL; 907 908 /* 909 * Get a request, allocate storage for the address list. 910 */ 911 if ((error = ciss_get_request(sc, &cr)) != 0) 912 goto out; 913 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 914 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 915 916 /* 917 * Build the Report Logical LUNs command. 918 */ 919 cc = CISS_FIND_COMMAND(cr); 920 cr->cr_data = cll; 921 cr->cr_length = report_size; 922 cr->cr_flags = CISS_REQ_DATAIN; 923 924 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 925 cc->header.address.physical.bus = 0; 926 cc->header.address.physical.target = 0; 927 cc->cdb.cdb_length = sizeof(*crc); 928 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 929 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 930 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 931 cc->cdb.timeout = 30; /* XXX better suggestions? */ 932 933 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 934 bzero(crc, sizeof(*crc)); 935 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 936 crc->length = htonl(report_size); /* big-endian field */ 937 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 938 939 /* 940 * Submit the request and wait for it to complete. (timeout 941 * here should be much greater than above) 942 */ 943 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 944 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 945 goto out; 946 } 947 948 /* 949 * Check response. Note that data over/underrun is OK. 950 */ 951 ciss_report_request(cr, &command_status, NULL); 952 switch(command_status) { 953 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 954 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 955 break; 956 case CISS_CMD_STATUS_DATA_OVERRUN: 957 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 958 CISS_MAX_LOGICAL); 959 break; 960 default: 961 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 962 ciss_name_command_status(command_status)); 963 error = EIO; 964 goto out; 965 } 966 ciss_release_request(cr); 967 cr = NULL; 968 969 /* sanity-check reply */ 970 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 971 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 972 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 973 ndrives, CISS_MAX_LOGICAL); 974 return(ENXIO); 975 } 976 977 /* 978 * Save logical drive information. 979 */ 980 if (1/*bootverbose*/) 981 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 982 if (ndrives != sc->ciss_id->configured_logical_drives) 983 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 984 ndrives, sc->ciss_id->configured_logical_drives); 985 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 986 if (i < ndrives) { 987 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 988 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 989 continue; 990 /* 991 * If the drive has had media exchanged, we should bring it online. 992 */ 993 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 994 ciss_accept_media(sc, i, 0); 995 996 } else { 997 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 998 } 999 } 1000 error = 0; 1001 1002 out: 1003 /* 1004 * Note that if the error is a timeout, we are taking a slight 1005 * risk here and assuming that the adapter will not respond at a 1006 * later time, scribbling over host memory. 1007 */ 1008 if (cr != NULL) 1009 ciss_release_request(cr); 1010 if (cll != NULL) 1011 kfree(cll, CISS_MALLOC_CLASS); 1012 return(error); 1013 } 1014 1015 static int 1016 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1017 { 1018 struct ciss_request *cr; 1019 struct ciss_command *cc; 1020 struct scsi_inquiry *inq; 1021 int error; 1022 int command_status; 1023 int lun; 1024 1025 cr = NULL; 1026 lun = ld->cl_address.logical.lun; 1027 1028 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1029 1030 if ((error = ciss_get_request(sc, &cr)) != 0) 1031 goto out; 1032 1033 cc = CISS_FIND_COMMAND(cr); 1034 cr->cr_data = &ld->cl_geometry; 1035 cr->cr_length = sizeof(ld->cl_geometry); 1036 cr->cr_flags = CISS_REQ_DATAIN; 1037 1038 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1039 cc->header.address.logical.lun = lun; 1040 cc->cdb.cdb_length = 6; 1041 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1042 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1043 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1044 cc->cdb.timeout = 30; 1045 1046 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1047 inq->opcode = INQUIRY; 1048 inq->byte2 = SI_EVPD; 1049 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1050 inq->length = sizeof(ld->cl_geometry); 1051 1052 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1053 ciss_printf(sc, "error getting geometry (%d)\n", error); 1054 goto out; 1055 } 1056 1057 ciss_report_request(cr, &command_status, NULL); 1058 switch(command_status) { 1059 case CISS_CMD_STATUS_SUCCESS: 1060 case CISS_CMD_STATUS_DATA_UNDERRUN: 1061 break; 1062 case CISS_CMD_STATUS_DATA_OVERRUN: 1063 ciss_printf(sc, "WARNING: Data overrun\n"); 1064 break; 1065 default: 1066 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1067 ciss_name_command_status(command_status)); 1068 break; 1069 } 1070 1071 out: 1072 if (cr != NULL) 1073 ciss_release_request(cr); 1074 return(error); 1075 } 1076 /************************************************************************ 1077 * Identify a logical drive, initialise state related to it. 1078 */ 1079 static int 1080 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1081 { 1082 struct ciss_request *cr; 1083 struct ciss_command *cc; 1084 struct ciss_bmic_cdb *cbc; 1085 int error, command_status; 1086 1087 debug_called(1); 1088 1089 cr = NULL; 1090 1091 /* 1092 * Build a BMIC request to fetch the drive ID. 1093 */ 1094 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1095 (void **)&ld->cl_ldrive, 1096 sizeof(*ld->cl_ldrive))) != 0) 1097 goto out; 1098 cc = CISS_FIND_COMMAND(cr); 1099 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1100 cbc->log_drive = ld->cl_address.logical.lun; 1101 1102 /* 1103 * Submit the request and wait for it to complete. 1104 */ 1105 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1106 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1107 goto out; 1108 } 1109 1110 /* 1111 * Check response. 1112 */ 1113 ciss_report_request(cr, &command_status, NULL); 1114 switch(command_status) { 1115 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1116 break; 1117 case CISS_CMD_STATUS_DATA_UNDERRUN: 1118 case CISS_CMD_STATUS_DATA_OVERRUN: 1119 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1120 default: 1121 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1122 ciss_name_command_status(command_status)); 1123 error = EIO; 1124 goto out; 1125 } 1126 ciss_release_request(cr); 1127 cr = NULL; 1128 1129 /* 1130 * Build a CISS BMIC command to get the logical drive status. 1131 */ 1132 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1133 goto out; 1134 1135 /* 1136 * Get the logical drive geometry. 1137 */ 1138 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1139 goto out; 1140 1141 /* 1142 * Print the drive's basic characteristics. 1143 */ 1144 if (1/*bootverbose*/) { 1145 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1146 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1147 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1148 ld->cl_ldrive->block_size)); 1149 1150 ciss_print_ldrive(sc, ld); 1151 } 1152 out: 1153 if (error != 0) { 1154 /* make the drive not-exist */ 1155 ld->cl_status = CISS_LD_NONEXISTENT; 1156 if (ld->cl_ldrive != NULL) { 1157 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1158 ld->cl_ldrive = NULL; 1159 } 1160 if (ld->cl_lstatus != NULL) { 1161 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1162 ld->cl_lstatus = NULL; 1163 } 1164 } 1165 if (cr != NULL) 1166 ciss_release_request(cr); 1167 1168 return(error); 1169 } 1170 1171 /************************************************************************ 1172 * Get status for a logical drive. 1173 * 1174 * XXX should we also do this in response to Test Unit Ready? 1175 */ 1176 static int 1177 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1178 { 1179 struct ciss_request *cr; 1180 struct ciss_command *cc; 1181 struct ciss_bmic_cdb *cbc; 1182 int error, command_status; 1183 1184 /* 1185 * Build a CISS BMIC command to get the logical drive status. 1186 */ 1187 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1188 (void **)&ld->cl_lstatus, 1189 sizeof(*ld->cl_lstatus))) != 0) 1190 goto out; 1191 cc = CISS_FIND_COMMAND(cr); 1192 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1193 cbc->log_drive = ld->cl_address.logical.lun; 1194 1195 /* 1196 * Submit the request and wait for it to complete. 1197 */ 1198 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1199 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1200 goto out; 1201 } 1202 1203 /* 1204 * Check response. 1205 */ 1206 ciss_report_request(cr, &command_status, NULL); 1207 switch(command_status) { 1208 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1209 break; 1210 case CISS_CMD_STATUS_DATA_UNDERRUN: 1211 case CISS_CMD_STATUS_DATA_OVERRUN: 1212 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1213 default: 1214 ciss_printf(sc, "error reading logical drive status (%s)\n", 1215 ciss_name_command_status(command_status)); 1216 error = EIO; 1217 goto out; 1218 } 1219 1220 /* 1221 * Set the drive's summary status based on the returned status. 1222 * 1223 * XXX testing shows that a failed JBOD drive comes back at next 1224 * boot in "queued for expansion" mode. WTF? 1225 */ 1226 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1227 1228 out: 1229 if (cr != NULL) 1230 ciss_release_request(cr); 1231 return(error); 1232 } 1233 1234 /************************************************************************ 1235 * Notify the adapter of a config update. 1236 */ 1237 static int 1238 ciss_update_config(struct ciss_softc *sc) 1239 { 1240 int i; 1241 1242 debug_called(1); 1243 1244 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1245 for (i = 0; i < 1000; i++) { 1246 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1247 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1248 return(0); 1249 } 1250 DELAY(1000); 1251 } 1252 return(1); 1253 } 1254 1255 /************************************************************************ 1256 * Accept new media into a logical drive. 1257 * 1258 * XXX The drive has previously been offline; it would be good if we 1259 * could make sure it's not open right now. 1260 */ 1261 static int 1262 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1263 { 1264 struct ciss_request *cr; 1265 struct ciss_command *cc; 1266 struct ciss_bmic_cdb *cbc; 1267 int error; 1268 1269 debug(0, "bringing logical drive %d back online %ssynchronously", 1270 ldrive, async ? "a" : ""); 1271 1272 /* 1273 * Build a CISS BMIC command to bring the drive back online. 1274 */ 1275 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1276 NULL, 0)) != 0) 1277 goto out; 1278 cc = CISS_FIND_COMMAND(cr); 1279 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1280 cbc->log_drive = ldrive; 1281 1282 /* 1283 * Dispatch the request asynchronously if we can't sleep waiting 1284 * for it to complete. 1285 */ 1286 if (async) { 1287 cr->cr_complete = ciss_accept_media_complete; 1288 if ((error = ciss_start(cr)) != 0) 1289 goto out; 1290 return(0); 1291 } else { 1292 /* 1293 * Submit the request and wait for it to complete. 1294 */ 1295 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1296 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1297 goto out; 1298 } 1299 } 1300 1301 /* 1302 * Call the completion callback manually. 1303 */ 1304 ciss_accept_media_complete(cr); 1305 return(0); 1306 1307 out: 1308 if (cr != NULL) 1309 ciss_release_request(cr); 1310 return(error); 1311 } 1312 1313 static void 1314 ciss_accept_media_complete(struct ciss_request *cr) 1315 { 1316 int command_status; 1317 1318 /* 1319 * Check response. 1320 */ 1321 ciss_report_request(cr, &command_status, NULL); 1322 switch(command_status) { 1323 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1324 /* we should get a logical drive status changed event here */ 1325 break; 1326 default: 1327 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1328 ciss_name_command_status(command_status)); 1329 break; 1330 } 1331 ciss_release_request(cr); 1332 } 1333 1334 /************************************************************************ 1335 * Release adapter resources. 1336 */ 1337 static void 1338 ciss_free(struct ciss_softc *sc) 1339 { 1340 debug_called(1); 1341 1342 /* we're going away */ 1343 sc->ciss_flags |= CISS_FLAG_ABORTING; 1344 1345 /* terminate the periodic heartbeat routine */ 1346 callout_stop(&sc->ciss_periodic); 1347 1348 /* cancel the Event Notify chain */ 1349 ciss_notify_abort(sc); 1350 1351 /* free the controller data */ 1352 if (sc->ciss_id != NULL) 1353 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1354 1355 /* release I/O resources */ 1356 if (sc->ciss_regs_resource != NULL) 1357 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1358 sc->ciss_regs_rid, sc->ciss_regs_resource); 1359 if (sc->ciss_cfg_resource != NULL) 1360 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1361 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1362 if (sc->ciss_intr != NULL) 1363 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1364 if (sc->ciss_irq_resource != NULL) 1365 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1366 sc->ciss_irq_rid, sc->ciss_irq_resource); 1367 1368 /* destroy DMA tags */ 1369 if (sc->ciss_parent_dmat) 1370 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1371 if (sc->ciss_buffer_dmat) 1372 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1373 1374 /* destroy command memory and DMA tag */ 1375 if (sc->ciss_command != NULL) { 1376 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1377 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1378 bus_dmamap_destroy(sc->ciss_command_dmat, sc->ciss_command_map); 1379 } 1380 if (sc->ciss_buffer_dmat) 1381 bus_dma_tag_destroy(sc->ciss_command_dmat); 1382 1383 /* disconnect from CAM */ 1384 if (sc->ciss_cam_sim) { 1385 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1386 cam_sim_free(sc->ciss_cam_sim); 1387 } 1388 if (sc->ciss_cam_devq) 1389 cam_simq_release(sc->ciss_cam_devq); 1390 /* XXX what about ciss_cam_path? */ 1391 } 1392 1393 /************************************************************************ 1394 * Give a command to the adapter. 1395 * 1396 * Note that this uses the simple transport layer directly. If we 1397 * want to add support for other layers, we'll need a switch of some 1398 * sort. 1399 * 1400 * Note that the simple transport layer has no way of refusing a 1401 * command; we only have as many request structures as the adapter 1402 * supports commands, so we don't have to check (this presumes that 1403 * the adapter can handle commands as fast as we throw them at it). 1404 */ 1405 static int 1406 ciss_start(struct ciss_request *cr) 1407 { 1408 struct ciss_command *cc; /* XXX debugging only */ 1409 int error; 1410 1411 cc = CISS_FIND_COMMAND(cr); 1412 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1413 1414 /* 1415 * Map the request's data. 1416 */ 1417 if ((error = ciss_map_request(cr))) 1418 return(error); 1419 1420 #if 0 1421 ciss_print_request(cr); 1422 #endif 1423 1424 /* 1425 * Post the command to the adapter. 1426 */ 1427 ciss_enqueue_busy(cr); 1428 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1429 1430 return(0); 1431 } 1432 1433 /************************************************************************ 1434 * Fetch completed request(s) from the adapter, queue them for 1435 * completion handling. 1436 * 1437 * Note that this uses the simple transport layer directly. If we 1438 * want to add support for other layers, we'll need a switch of some 1439 * sort. 1440 * 1441 * Note that the simple transport mechanism does not require any 1442 * reentrancy protection; the OPQ read is atomic. If there is a 1443 * chance of a race with something else that might move the request 1444 * off the busy list, then we will have to lock against that 1445 * (eg. timeouts, etc.) 1446 */ 1447 static void 1448 ciss_done(struct ciss_softc *sc) 1449 { 1450 struct ciss_request *cr; 1451 struct ciss_command *cc; 1452 u_int32_t tag, index; 1453 int complete; 1454 1455 debug_called(3); 1456 1457 /* 1458 * Loop quickly taking requests from the adapter and moving them 1459 * from the busy queue to the completed queue. 1460 */ 1461 complete = 0; 1462 for (;;) { 1463 1464 /* see if the OPQ contains anything */ 1465 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1466 break; 1467 1468 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1469 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1470 break; 1471 index = tag >> 2; 1472 debug(2, "completed command %d%s", index, 1473 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1474 if (index >= sc->ciss_max_requests) { 1475 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1476 continue; 1477 } 1478 cr = &(sc->ciss_request[index]); 1479 cc = CISS_FIND_COMMAND(cr); 1480 cc->header.host_tag = tag; /* not updated by adapter */ 1481 if (ciss_remove_busy(cr)) { 1482 /* assume this is garbage out of the adapter */ 1483 ciss_printf(sc, "completed nonbusy request %d\n", index); 1484 } else { 1485 ciss_enqueue_complete(cr); 1486 } 1487 complete = 1; 1488 } 1489 1490 /* 1491 * Invoke completion processing. If we can defer this out of 1492 * interrupt context, that'd be good. 1493 */ 1494 if (complete) 1495 ciss_complete(sc); 1496 } 1497 1498 /************************************************************************ 1499 * Take an interrupt from the adapter. 1500 */ 1501 static void 1502 ciss_intr(void *arg) 1503 { 1504 struct ciss_softc *sc = (struct ciss_softc *)arg; 1505 1506 /* 1507 * The only interrupt we recognise indicates that there are 1508 * entries in the outbound post queue. 1509 */ 1510 ciss_done(sc); 1511 } 1512 1513 /************************************************************************ 1514 * Process completed requests. 1515 * 1516 * Requests can be completed in three fashions: 1517 * 1518 * - by invoking a callback function (cr_complete is non-null) 1519 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1520 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1521 */ 1522 static void 1523 ciss_complete(struct ciss_softc *sc) 1524 { 1525 struct ciss_request *cr; 1526 1527 debug_called(2); 1528 1529 /* 1530 * Loop taking requests off the completed queue and performing 1531 * completion processing on them. 1532 */ 1533 for (;;) { 1534 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1535 break; 1536 ciss_unmap_request(cr); 1537 1538 /* 1539 * If the request has a callback, invoke it. 1540 */ 1541 if (cr->cr_complete != NULL) { 1542 cr->cr_complete(cr); 1543 continue; 1544 } 1545 1546 /* 1547 * If someone is sleeping on this request, wake them up. 1548 */ 1549 if (cr->cr_flags & CISS_REQ_SLEEP) { 1550 cr->cr_flags &= ~CISS_REQ_SLEEP; 1551 wakeup(cr); 1552 continue; 1553 } 1554 1555 /* 1556 * If someone is polling this request for completion, signal. 1557 */ 1558 if (cr->cr_flags & CISS_REQ_POLL) { 1559 cr->cr_flags &= ~CISS_REQ_POLL; 1560 continue; 1561 } 1562 1563 /* 1564 * Give up and throw the request back on the free queue. This 1565 * should never happen; resources will probably be lost. 1566 */ 1567 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1568 ciss_enqueue_free(cr); 1569 } 1570 } 1571 1572 /************************************************************************ 1573 * Report on the completion status of a request, and pass back SCSI 1574 * and command status values. 1575 */ 1576 static int 1577 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1578 { 1579 struct ciss_command *cc; 1580 struct ciss_error_info *ce; 1581 1582 debug_called(2); 1583 1584 cc = CISS_FIND_COMMAND(cr); 1585 ce = (struct ciss_error_info *)&(cc->sg[0]); 1586 1587 /* 1588 * We don't consider data under/overrun an error for the Report 1589 * Logical/Physical LUNs commands. 1590 */ 1591 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1592 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1593 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1594 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1595 debug(2, "ignoring irrelevant under/overrun error"); 1596 } 1597 1598 /* 1599 * Check the command's error bit, if clear, there's no status and 1600 * everything is OK. 1601 */ 1602 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1603 if (scsi_status != NULL) 1604 *scsi_status = SCSI_STATUS_OK; 1605 if (command_status != NULL) 1606 *command_status = CISS_CMD_STATUS_SUCCESS; 1607 return(0); 1608 } else { 1609 if (command_status != NULL) 1610 *command_status = ce->command_status; 1611 if (scsi_status != NULL) { 1612 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1613 *scsi_status = ce->scsi_status; 1614 } else { 1615 *scsi_status = -1; 1616 } 1617 } 1618 if (bootverbose) 1619 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1620 ce->command_status, ciss_name_command_status(ce->command_status), 1621 ce->scsi_status); 1622 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1623 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1624 ce->additional_error_info.invalid_command.offense_size, 1625 ce->additional_error_info.invalid_command.offense_offset, 1626 ce->additional_error_info.invalid_command.offense_value); 1627 } 1628 } 1629 return(1); 1630 } 1631 1632 /************************************************************************ 1633 * Issue a request and don't return until it's completed. 1634 * 1635 * Depending on adapter status, we may poll or sleep waiting for 1636 * completion. 1637 */ 1638 static int 1639 ciss_synch_request(struct ciss_request *cr, int timeout) 1640 { 1641 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1642 return(ciss_wait_request(cr, timeout)); 1643 } else { 1644 return(ciss_poll_request(cr, timeout)); 1645 } 1646 } 1647 1648 /************************************************************************ 1649 * Issue a request and poll for completion. 1650 * 1651 * Timeout in milliseconds. 1652 */ 1653 static int 1654 ciss_poll_request(struct ciss_request *cr, int timeout) 1655 { 1656 int error; 1657 1658 debug_called(2); 1659 1660 cr->cr_flags |= CISS_REQ_POLL; 1661 if ((error = ciss_start(cr)) != 0) 1662 return(error); 1663 1664 do { 1665 ciss_done(cr->cr_sc); 1666 if (!(cr->cr_flags & CISS_REQ_POLL)) 1667 return(0); 1668 DELAY(1000); 1669 } while (timeout-- >= 0); 1670 return(EWOULDBLOCK); 1671 } 1672 1673 /************************************************************************ 1674 * Issue a request and sleep waiting for completion. 1675 * 1676 * Timeout in milliseconds. Note that a spurious wakeup will reset 1677 * the timeout. 1678 */ 1679 static int 1680 ciss_wait_request(struct ciss_request *cr, int timeout) 1681 { 1682 int error; 1683 1684 debug_called(2); 1685 1686 cr->cr_flags |= CISS_REQ_SLEEP; 1687 if ((error = ciss_start(cr)) != 0) 1688 return(error); 1689 1690 crit_enter(); 1691 while (cr->cr_flags & CISS_REQ_SLEEP) { 1692 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1693 /* 1694 * On wakeup or interruption due to restartable activity, go 1695 * back and check to see if we're done. 1696 */ 1697 if ((error == 0) || (error == ERESTART)) { 1698 error = 0; 1699 continue; 1700 } 1701 /* 1702 * Timeout, interrupted system call, etc. 1703 */ 1704 break; 1705 } 1706 crit_exit(); 1707 return(error); 1708 } 1709 1710 #if 0 1711 /************************************************************************ 1712 * Abort a request. Note that a potential exists here to race the 1713 * request being completed; the caller must deal with this. 1714 */ 1715 static int 1716 ciss_abort_request(struct ciss_request *ar) 1717 { 1718 struct ciss_request *cr; 1719 struct ciss_command *cc; 1720 struct ciss_message_cdb *cmc; 1721 int error; 1722 1723 debug_called(1); 1724 1725 /* get a request */ 1726 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1727 return(error); 1728 1729 /* build the abort command */ 1730 cc = CISS_FIND_COMMAND(cr); 1731 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1732 cc->header.address.physical.target = 0; 1733 cc->header.address.physical.bus = 0; 1734 cc->cdb.cdb_length = sizeof(*cmc); 1735 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1736 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1737 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1738 cc->cdb.timeout = 30; 1739 1740 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1741 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1742 cmc->type = CISS_MESSAGE_ABORT_TASK; 1743 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1744 1745 /* 1746 * Send the request and wait for a response. If we believe we 1747 * aborted the request OK, clear the flag that indicates it's 1748 * running. 1749 */ 1750 error = ciss_synch_request(cr, 35 * 1000); 1751 if (!error) 1752 error = ciss_report_request(cr, NULL, NULL); 1753 ciss_release_request(cr); 1754 1755 return(error); 1756 } 1757 #endif 1758 1759 1760 /************************************************************************ 1761 * Fetch and initialise a request 1762 */ 1763 static int 1764 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1765 { 1766 struct ciss_request *cr; 1767 1768 debug_called(2); 1769 1770 /* 1771 * Get a request and clean it up. 1772 */ 1773 if ((cr = ciss_dequeue_free(sc)) == NULL) 1774 return(ENOMEM); 1775 1776 cr->cr_data = NULL; 1777 cr->cr_flags = 0; 1778 cr->cr_complete = NULL; 1779 1780 ciss_preen_command(cr); 1781 *crp = cr; 1782 return(0); 1783 } 1784 1785 static void 1786 ciss_preen_command(struct ciss_request *cr) 1787 { 1788 struct ciss_command *cc; 1789 u_int32_t cmdphys; 1790 1791 /* 1792 * Clean up the command structure. 1793 * 1794 * Note that we set up the error_info structure here, since the 1795 * length can be overwritten by any command. 1796 */ 1797 cc = CISS_FIND_COMMAND(cr); 1798 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1799 cc->header.sg_total = 0; 1800 cc->header.host_tag = cr->cr_tag << 2; 1801 cc->header.host_tag_zeroes = 0; 1802 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1803 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1804 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1805 1806 } 1807 1808 /************************************************************************ 1809 * Release a request to the free list. 1810 */ 1811 static void 1812 ciss_release_request(struct ciss_request *cr) 1813 { 1814 struct ciss_softc *sc; 1815 1816 debug_called(2); 1817 1818 sc = cr->cr_sc; 1819 1820 /* release the request to the free queue */ 1821 ciss_requeue_free(cr); 1822 } 1823 1824 /************************************************************************ 1825 * Allocate a request that will be used to send a BMIC command. Do some 1826 * of the common setup here to avoid duplicating it everywhere else. 1827 */ 1828 static int 1829 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1830 int opcode, void **bufp, size_t bufsize) 1831 { 1832 struct ciss_request *cr; 1833 struct ciss_command *cc; 1834 struct ciss_bmic_cdb *cbc; 1835 void *buf; 1836 int error; 1837 int dataout; 1838 1839 debug_called(2); 1840 1841 cr = NULL; 1842 buf = NULL; 1843 1844 /* 1845 * Get a request. 1846 */ 1847 if ((error = ciss_get_request(sc, &cr)) != 0) 1848 goto out; 1849 1850 /* 1851 * Allocate data storage if requested, determine the data direction. 1852 */ 1853 dataout = 0; 1854 if ((bufsize > 0) && (bufp != NULL)) { 1855 if (*bufp == NULL) { 1856 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1857 } else { 1858 buf = *bufp; 1859 dataout = 1; /* we are given a buffer, so we are writing */ 1860 } 1861 } 1862 1863 /* 1864 * Build a CISS BMIC command to get the logical drive ID. 1865 */ 1866 cr->cr_data = buf; 1867 cr->cr_length = bufsize; 1868 if (!dataout) 1869 cr->cr_flags = CISS_REQ_DATAIN; 1870 1871 cc = CISS_FIND_COMMAND(cr); 1872 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1873 cc->header.address.physical.bus = 0; 1874 cc->header.address.physical.target = 0; 1875 cc->cdb.cdb_length = sizeof(*cbc); 1876 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1877 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1878 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1879 cc->cdb.timeout = 0; 1880 1881 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1882 bzero(cbc, sizeof(*cbc)); 1883 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1884 cbc->bmic_opcode = opcode; 1885 cbc->size = htons((u_int16_t)bufsize); 1886 1887 out: 1888 if (error) { 1889 if (cr != NULL) 1890 ciss_release_request(cr); 1891 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1892 kfree(buf, CISS_MALLOC_CLASS); 1893 } else { 1894 *crp = cr; 1895 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1896 *bufp = buf; 1897 } 1898 return(error); 1899 } 1900 1901 /************************************************************************ 1902 * Handle a command passed in from userspace. 1903 */ 1904 static int 1905 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1906 { 1907 struct ciss_request *cr; 1908 struct ciss_command *cc; 1909 struct ciss_error_info *ce; 1910 int error; 1911 1912 debug_called(1); 1913 1914 cr = NULL; 1915 1916 /* 1917 * Get a request. 1918 */ 1919 if ((error = ciss_get_request(sc, &cr)) != 0) 1920 goto out; 1921 cc = CISS_FIND_COMMAND(cr); 1922 1923 /* 1924 * Allocate an in-kernel databuffer if required, copy in user data. 1925 */ 1926 cr->cr_length = ioc->buf_size; 1927 if (ioc->buf_size > 0) { 1928 if ((cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1929 error = ENOMEM; 1930 goto out; 1931 } 1932 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1933 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1934 goto out; 1935 } 1936 } 1937 1938 /* 1939 * Build the request based on the user command. 1940 */ 1941 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1942 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1943 1944 /* XXX anything else to populate here? */ 1945 1946 /* 1947 * Run the command. 1948 */ 1949 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1950 debug(0, "request failed - %d", error); 1951 goto out; 1952 } 1953 1954 /* 1955 * Copy the results back to the user. 1956 */ 1957 ce = (struct ciss_error_info *)&(cc->sg[0]); 1958 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1959 if ((ioc->buf_size > 0) && 1960 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1961 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1962 goto out; 1963 } 1964 1965 /* done OK */ 1966 error = 0; 1967 1968 out: 1969 if ((cr != NULL) && (cr->cr_data != NULL)) 1970 kfree(cr->cr_data, CISS_MALLOC_CLASS); 1971 if (cr != NULL) 1972 ciss_release_request(cr); 1973 return(error); 1974 } 1975 1976 /************************************************************************ 1977 * Map a request into bus-visible space, initialise the scatter/gather 1978 * list. 1979 */ 1980 static int 1981 ciss_map_request(struct ciss_request *cr) 1982 { 1983 struct ciss_softc *sc; 1984 1985 debug_called(2); 1986 1987 sc = cr->cr_sc; 1988 1989 /* check that mapping is necessary */ 1990 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1991 return(0); 1992 1993 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1994 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1995 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 1996 1997 if (cr->cr_flags & CISS_REQ_DATAIN) 1998 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 1999 if (cr->cr_flags & CISS_REQ_DATAOUT) 2000 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2001 2002 cr->cr_flags |= CISS_REQ_MAPPED; 2003 return(0); 2004 } 2005 2006 static void 2007 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2008 { 2009 struct ciss_command *cc; 2010 int i; 2011 2012 debug_called(2); 2013 2014 cc = (struct ciss_command *)arg; 2015 for (i = 0; i < nseg; i++) { 2016 cc->sg[i].address = segs[i].ds_addr; 2017 cc->sg[i].length = segs[i].ds_len; 2018 cc->sg[i].extension = 0; 2019 } 2020 /* we leave the s/g table entirely within the command */ 2021 cc->header.sg_in_list = nseg; 2022 cc->header.sg_total = nseg; 2023 } 2024 2025 /************************************************************************ 2026 * Unmap a request from bus-visible space. 2027 */ 2028 static void 2029 ciss_unmap_request(struct ciss_request *cr) 2030 { 2031 struct ciss_softc *sc; 2032 2033 debug_called(2); 2034 2035 sc = cr->cr_sc; 2036 2037 /* check that unmapping is necessary */ 2038 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2039 return; 2040 2041 if (cr->cr_flags & CISS_REQ_DATAIN) 2042 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2043 if (cr->cr_flags & CISS_REQ_DATAOUT) 2044 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2045 2046 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2047 bus_dmamap_destroy(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 = kmalloc(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 kfree(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 ksprintf(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 = kmalloc(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 kfree(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, 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 = kmalloc(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 crit_enter(); 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 crit_exit(); 2914 2915 out: 2916 /* release the cancel request */ 2917 if (cr != NULL) { 2918 if (cr->cr_data != NULL) 2919 kfree(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 kprintf("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 kprintf("\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 kprintf("does not exist\n"); 3142 return; 3143 } 3144 3145 /* print drive status */ 3146 switch(ld->cl_lstatus->status) { 3147 case CISS_LSTATUS_OK: 3148 kprintf("online\n"); 3149 break; 3150 case CISS_LSTATUS_INTERIM_RECOVERY: 3151 kprintf("in interim recovery mode\n"); 3152 break; 3153 case CISS_LSTATUS_READY_RECOVERY: 3154 kprintf("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 kprintf("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 kprintf("being expanded, %u blocks remaining\n", 3164 ld->cl_lstatus->blocks_to_recover); 3165 break; 3166 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3167 kprintf("queued for expansion\n"); 3168 break; 3169 case CISS_LSTATUS_FAILED: 3170 kprintf("queued for expansion\n"); 3171 break; 3172 case CISS_LSTATUS_WRONG_PDRIVE: 3173 kprintf("wrong physical drive inserted\n"); 3174 break; 3175 case CISS_LSTATUS_MISSING_PDRIVE: 3176 kprintf("missing a needed physical drive\n"); 3177 break; 3178 case CISS_LSTATUS_BECOMING_READY: 3179 kprintf("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 void ciss_print0(void); 3228 3229 /* DDB hook */ 3230 void 3231 ciss_print0(void) 3232 { 3233 struct ciss_softc *sc; 3234 3235 sc = devclass_get_softc(devclass_find("ciss"), 0); 3236 if (sc == NULL) { 3237 kprintf("no ciss controllers\n"); 3238 } else { 3239 ciss_print_adapter(sc); 3240 } 3241 } 3242 #endif 3243 3244 /************************************************************************ 3245 * Return a name for a logical drive status value. 3246 */ 3247 static const char * 3248 ciss_name_ldrive_status(int status) 3249 { 3250 switch (status) { 3251 case CISS_LSTATUS_OK: 3252 return("OK"); 3253 case CISS_LSTATUS_FAILED: 3254 return("failed"); 3255 case CISS_LSTATUS_NOT_CONFIGURED: 3256 return("not configured"); 3257 case CISS_LSTATUS_INTERIM_RECOVERY: 3258 return("interim recovery"); 3259 case CISS_LSTATUS_READY_RECOVERY: 3260 return("ready for recovery"); 3261 case CISS_LSTATUS_RECOVERING: 3262 return("recovering"); 3263 case CISS_LSTATUS_WRONG_PDRIVE: 3264 return("wrong physical drive inserted"); 3265 case CISS_LSTATUS_MISSING_PDRIVE: 3266 return("missing physical drive"); 3267 case CISS_LSTATUS_EXPANDING: 3268 return("expanding"); 3269 case CISS_LSTATUS_BECOMING_READY: 3270 return("becoming ready"); 3271 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3272 return("queued for expansion"); 3273 } 3274 return("unknown status"); 3275 } 3276 3277 /************************************************************************ 3278 * Return an online/offline/nonexistent value for a logical drive 3279 * status value. 3280 */ 3281 static int 3282 ciss_decode_ldrive_status(int status) 3283 { 3284 switch(status) { 3285 case CISS_LSTATUS_NOT_CONFIGURED: 3286 return(CISS_LD_NONEXISTENT); 3287 3288 case CISS_LSTATUS_OK: 3289 case CISS_LSTATUS_INTERIM_RECOVERY: 3290 case CISS_LSTATUS_READY_RECOVERY: 3291 case CISS_LSTATUS_RECOVERING: 3292 case CISS_LSTATUS_EXPANDING: 3293 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3294 return(CISS_LD_ONLINE); 3295 3296 case CISS_LSTATUS_FAILED: 3297 case CISS_LSTATUS_WRONG_PDRIVE: 3298 case CISS_LSTATUS_MISSING_PDRIVE: 3299 case CISS_LSTATUS_BECOMING_READY: 3300 default: 3301 return(CISS_LD_OFFLINE); 3302 } 3303 } 3304 3305 3306 /************************************************************************ 3307 * Return a name for a logical drive's organisation. 3308 */ 3309 static const char * 3310 ciss_name_ldrive_org(int org) 3311 { 3312 switch(org) { 3313 case CISS_LDRIVE_RAID0: 3314 return("RAID 0"); 3315 case CISS_LDRIVE_RAID1: 3316 return("RAID 1"); 3317 case CISS_LDRIVE_RAID4: 3318 return("RAID 4"); 3319 case CISS_LDRIVE_RAID5: 3320 return("RAID 5"); 3321 } 3322 return("unkown"); 3323 } 3324 3325 /************************************************************************ 3326 * Return a name for a command status value. 3327 */ 3328 static const char * 3329 ciss_name_command_status(int status) 3330 { 3331 switch(status) { 3332 case CISS_CMD_STATUS_SUCCESS: 3333 return("success"); 3334 case CISS_CMD_STATUS_TARGET_STATUS: 3335 return("target status"); 3336 case CISS_CMD_STATUS_DATA_UNDERRUN: 3337 return("data underrun"); 3338 case CISS_CMD_STATUS_DATA_OVERRUN: 3339 return("data overrun"); 3340 case CISS_CMD_STATUS_INVALID_COMMAND: 3341 return("invalid command"); 3342 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3343 return("protocol error"); 3344 case CISS_CMD_STATUS_HARDWARE_ERROR: 3345 return("hardware error"); 3346 case CISS_CMD_STATUS_CONNECTION_LOST: 3347 return("connection lost"); 3348 case CISS_CMD_STATUS_ABORTED: 3349 return("aborted"); 3350 case CISS_CMD_STATUS_ABORT_FAILED: 3351 return("abort failed"); 3352 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3353 return("unsolicited abort"); 3354 case CISS_CMD_STATUS_TIMEOUT: 3355 return("timeout"); 3356 case CISS_CMD_STATUS_UNABORTABLE: 3357 return("unabortable"); 3358 } 3359 return("unknown status"); 3360 } 3361 3362 /************************************************************************ 3363 * Handle an open on the control device. 3364 */ 3365 static int 3366 ciss_open(struct dev_open_args *ap) 3367 { 3368 cdev_t dev = ap->a_head.a_dev; 3369 struct ciss_softc *sc; 3370 3371 debug_called(1); 3372 3373 sc = (struct ciss_softc *)dev->si_drv1; 3374 3375 /* we might want to veto if someone already has us open */ 3376 3377 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3378 return(0); 3379 } 3380 3381 /************************************************************************ 3382 * Handle the last close on the control device. 3383 */ 3384 static int 3385 ciss_close(struct dev_close_args *ap) 3386 { 3387 cdev_t dev = ap->a_head.a_dev; 3388 struct ciss_softc *sc; 3389 3390 debug_called(1); 3391 3392 sc = (struct ciss_softc *)dev->si_drv1; 3393 3394 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3395 return (0); 3396 } 3397 3398 /******************************************************************************** 3399 * Handle adapter-specific control operations. 3400 * 3401 * Note that the API here is compatible with the Linux driver, in order to 3402 * simplify the porting of Compaq's userland tools. 3403 */ 3404 static int 3405 ciss_ioctl(struct dev_ioctl_args *ap) 3406 { 3407 cdev_t dev = ap->a_head.a_dev; 3408 struct ciss_softc *sc; 3409 int error; 3410 3411 debug_called(1); 3412 3413 sc = (struct ciss_softc *)dev->si_drv1; 3414 error = 0; 3415 3416 switch(ap->a_cmd) { 3417 case CCISS_GETPCIINFO: 3418 { 3419 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)ap->a_data; 3420 3421 pis->bus = pci_get_bus(sc->ciss_dev); 3422 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3423 pis->board_id = pci_get_devid(sc->ciss_dev); 3424 3425 break; 3426 } 3427 3428 case CCISS_GETINTINFO: 3429 { 3430 cciss_coalint_struct *cis = (cciss_coalint_struct *)ap->a_data; 3431 3432 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3433 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3434 3435 break; 3436 } 3437 3438 case CCISS_SETINTINFO: 3439 { 3440 cciss_coalint_struct *cis = (cciss_coalint_struct *)ap->a_data; 3441 3442 if ((cis->delay == 0) && (cis->count == 0)) { 3443 error = EINVAL; 3444 break; 3445 } 3446 3447 /* 3448 * XXX apparently this is only safe if the controller is idle, 3449 * we should suspend it before doing this. 3450 */ 3451 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3452 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3453 3454 if (ciss_update_config(sc)) 3455 error = EIO; 3456 3457 /* XXX resume the controller here */ 3458 break; 3459 } 3460 3461 case CCISS_GETNODENAME: 3462 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)ap->a_data, 3463 sizeof(NodeName_type)); 3464 break; 3465 3466 case CCISS_SETNODENAME: 3467 bcopy((NodeName_type *)ap->a_data, sc->ciss_cfg->server_name, 3468 sizeof(NodeName_type)); 3469 if (ciss_update_config(sc)) 3470 error = EIO; 3471 break; 3472 3473 case CCISS_GETHEARTBEAT: 3474 *(Heartbeat_type *)ap->a_data = sc->ciss_cfg->heartbeat; 3475 break; 3476 3477 case CCISS_GETBUSTYPES: 3478 *(BusTypes_type *)ap->a_data = sc->ciss_cfg->bus_types; 3479 break; 3480 3481 case CCISS_GETFIRMVER: 3482 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)ap->a_data, 3483 sizeof(FirmwareVer_type)); 3484 break; 3485 3486 case CCISS_GETDRIVERVER: 3487 *(DriverVer_type *)ap->a_data = CISS_DRIVER_VERSION; 3488 break; 3489 3490 case CCISS_REVALIDVOLS: 3491 /* 3492 * This is a bit ugly; to do it "right" we really need 3493 * to find any disks that have changed, kick CAM off them, 3494 * then rescan only these disks. It'd be nice if they 3495 * a) told us which disk(s) they were going to play with, 3496 * and b) which ones had arrived. 8( 3497 */ 3498 break; 3499 3500 case CCISS_PASSTHRU: 3501 error = ciss_user_command(sc, (IOCTL_Command_struct *)ap->a_data); 3502 break; 3503 3504 default: 3505 debug(0, "unknown ioctl 0x%lx", ap->a_cmd); 3506 3507 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3508 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3509 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3510 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3511 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3512 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3513 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3514 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3515 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3516 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3517 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3518 3519 error = ENOIOCTL; 3520 break; 3521 } 3522 3523 return(error); 3524 } 3525