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 1.15 2005/06/09 20:55:05 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/malloc.h> 75 #include <sys/kernel.h> 76 #include <sys/bus.h> 77 #include <sys/conf.h> 78 #include <sys/devicestat.h> 79 #include <sys/stat.h> 80 81 #include <bus/cam/cam.h> 82 #include <bus/cam/cam_ccb.h> 83 #include <bus/cam/cam_periph.h> 84 #include <bus/cam/cam_sim.h> 85 #include <bus/cam/cam_xpt_sim.h> 86 #include <bus/cam/scsi/scsi_all.h> 87 #include <bus/cam/scsi/scsi_message.h> 88 89 #include <machine/clock.h> 90 #include <machine/bus_memio.h> 91 #include <machine/bus.h> 92 #include <machine/endian.h> 93 #include <machine/resource.h> 94 #include <sys/rman.h> 95 96 #include <bus/pci/pcireg.h> 97 #include <bus/pci/pcivar.h> 98 99 #include "cissreg.h" 100 #include "cissvar.h" 101 #include "cissio.h" 102 103 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 104 105 /* pci interface */ 106 static int ciss_lookup(device_t dev); 107 static int ciss_probe(device_t dev); 108 static int ciss_attach(device_t dev); 109 static int ciss_detach(device_t dev); 110 static int ciss_shutdown(device_t dev); 111 112 /* (de)initialisation functions, control wrappers */ 113 static int ciss_init_pci(struct ciss_softc *sc); 114 static int ciss_wait_adapter(struct ciss_softc *sc); 115 static int ciss_flush_adapter(struct ciss_softc *sc); 116 static int ciss_init_requests(struct ciss_softc *sc); 117 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 118 int nseg, int error); 119 static int ciss_identify_adapter(struct ciss_softc *sc); 120 static int ciss_init_logical(struct ciss_softc *sc); 121 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 122 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 123 static int ciss_update_config(struct ciss_softc *sc); 124 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 125 static void ciss_accept_media_complete(struct ciss_request *cr); 126 static void ciss_free(struct ciss_softc *sc); 127 128 /* request submission/completion */ 129 static int ciss_start(struct ciss_request *cr); 130 static void ciss_done(struct ciss_softc *sc); 131 static void ciss_intr(void *arg); 132 static void ciss_complete(struct ciss_softc *sc); 133 static int ciss_report_request(struct ciss_request *cr, int *command_status, 134 int *scsi_status); 135 static int ciss_synch_request(struct ciss_request *cr, int timeout); 136 static int ciss_poll_request(struct ciss_request *cr, int timeout); 137 static int ciss_wait_request(struct ciss_request *cr, int timeout); 138 #if 0 139 static int ciss_abort_request(struct ciss_request *cr); 140 #endif 141 142 /* request queueing */ 143 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 144 static void ciss_preen_command(struct ciss_request *cr); 145 static void ciss_release_request(struct ciss_request *cr); 146 147 /* request helpers */ 148 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 149 int opcode, void **bufp, size_t bufsize); 150 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 151 152 /* DMA map/unmap */ 153 static int ciss_map_request(struct ciss_request *cr); 154 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 155 int nseg, int error); 156 static void ciss_unmap_request(struct ciss_request *cr); 157 158 /* CAM interface */ 159 static int ciss_cam_init(struct ciss_softc *sc); 160 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 161 static void ciss_cam_rescan_all(struct ciss_softc *sc); 162 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 163 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 164 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 165 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 166 static void ciss_cam_poll(struct cam_sim *sim); 167 static void ciss_cam_complete(struct ciss_request *cr); 168 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 169 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 170 static int ciss_name_device(struct ciss_softc *sc, int target); 171 172 /* periodic status monitoring */ 173 static void ciss_periodic(void *arg); 174 static void ciss_notify_event(struct ciss_softc *sc); 175 static void ciss_notify_complete(struct ciss_request *cr); 176 static int ciss_notify_abort(struct ciss_softc *sc); 177 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 178 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 179 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 180 181 /* debugging output */ 182 static void ciss_print_request(struct ciss_request *cr); 183 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 184 static const char *ciss_name_ldrive_status(int status); 185 static int ciss_decode_ldrive_status(int status); 186 static const char *ciss_name_ldrive_org(int org); 187 static const char *ciss_name_command_status(int status); 188 189 /* 190 * PCI bus interface. 191 */ 192 static device_method_t ciss_methods[] = { 193 /* Device interface */ 194 DEVMETHOD(device_probe, ciss_probe), 195 DEVMETHOD(device_attach, ciss_attach), 196 DEVMETHOD(device_detach, ciss_detach), 197 DEVMETHOD(device_shutdown, ciss_shutdown), 198 { 0, 0 } 199 }; 200 201 static driver_t ciss_pci_driver = { 202 "ciss", 203 ciss_methods, 204 sizeof(struct ciss_softc) 205 }; 206 207 static devclass_t ciss_devclass; 208 209 DECLARE_DUMMY_MODULE(ciss); 210 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 211 212 /* 213 * Control device interface. 214 */ 215 static d_open_t ciss_open; 216 static d_close_t ciss_close; 217 static d_ioctl_t ciss_ioctl; 218 219 #define CISS_CDEV_MAJOR 166 220 221 static struct cdevsw ciss_cdevsw = { 222 /* name */ "ciss", 223 /* cmaj */ CISS_CDEV_MAJOR, 224 /* flags */ 0, 225 /* port */ NULL, 226 /* clone */ NULL, 227 ciss_open, ciss_close, noread, nowrite, ciss_ioctl, 228 nopoll, nommap, nostrategy, 229 nodump, nopsize, nokqfilter 230 }; 231 232 /************************************************************************ 233 * CISS adapters amazingly don't have a defined programming interface 234 * value. (One could say some very despairing things about PCI and 235 * people just not getting the general idea.) So we are forced to 236 * stick with matching against subvendor/subdevice, and thus have to 237 * be updated for every new CISS adapter that appears. 238 */ 239 #define CISS_BOARD_SA5 (1<<0) 240 #define CISS_BOARD_SA5B (1<<1) 241 242 static struct 243 { 244 u_int16_t subvendor; 245 u_int16_t subdevice; 246 int flags; 247 char *desc; 248 } ciss_vendor_data[] = { 249 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 250 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 251 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 252 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 253 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 254 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 255 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 256 { 0, 0, 0, NULL } 257 }; 258 259 /************************************************************************ 260 * Find a match for the device in our list of known adapters. 261 */ 262 static int 263 ciss_lookup(device_t dev) 264 { 265 int i; 266 267 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 268 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 269 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 270 return(i); 271 } 272 return(-1); 273 } 274 275 /************************************************************************ 276 * Match a known CISS adapter. 277 */ 278 static int 279 ciss_probe(device_t dev) 280 { 281 int i; 282 283 i = ciss_lookup(dev); 284 if (i != -1) { 285 device_set_desc(dev, ciss_vendor_data[i].desc); 286 return(-10); 287 } 288 return(ENOENT); 289 } 290 291 /************************************************************************ 292 * Attach the driver to this adapter. 293 */ 294 static int 295 ciss_attach(device_t dev) 296 { 297 struct ciss_softc *sc; 298 int i, error; 299 300 debug_called(1); 301 302 #ifdef CISS_DEBUG 303 /* print structure/union sizes */ 304 debug_struct(ciss_command); 305 debug_struct(ciss_header); 306 debug_union(ciss_device_address); 307 debug_struct(ciss_cdb); 308 debug_struct(ciss_report_cdb); 309 debug_struct(ciss_notify_cdb); 310 debug_struct(ciss_notify); 311 debug_struct(ciss_message_cdb); 312 debug_struct(ciss_error_info_pointer); 313 debug_struct(ciss_error_info); 314 debug_struct(ciss_sg_entry); 315 debug_struct(ciss_config_table); 316 debug_struct(ciss_bmic_cdb); 317 debug_struct(ciss_bmic_id_ldrive); 318 debug_struct(ciss_bmic_id_lstatus); 319 debug_struct(ciss_bmic_id_table); 320 debug_struct(ciss_bmic_id_pdrive); 321 debug_struct(ciss_bmic_blink_pdrive); 322 debug_struct(ciss_bmic_flush_cache); 323 debug_const(CISS_MAX_REQUESTS); 324 debug_const(CISS_MAX_LOGICAL); 325 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 326 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 327 debug_const(CISS_COMMAND_ALLOC_SIZE); 328 debug_const(CISS_COMMAND_SG_LENGTH); 329 330 debug_type(cciss_pci_info_struct); 331 debug_type(cciss_coalint_struct); 332 debug_type(cciss_coalint_struct); 333 debug_type(NodeName_type); 334 debug_type(NodeName_type); 335 debug_type(Heartbeat_type); 336 debug_type(BusTypes_type); 337 debug_type(FirmwareVer_type); 338 debug_type(DriverVer_type); 339 debug_type(IOCTL_Command_struct); 340 #endif 341 342 sc = device_get_softc(dev); 343 sc->ciss_dev = dev; 344 callout_init(&sc->ciss_periodic); 345 346 /* 347 * Work out adapter type. 348 */ 349 i = ciss_lookup(dev); 350 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 351 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 352 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 353 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 354 } else { 355 /* really an error on our part */ 356 ciss_printf(sc, "unable to determine hardware type\n"); 357 error = ENXIO; 358 goto out; 359 } 360 361 /* 362 * Do PCI-specific init. 363 */ 364 if ((error = ciss_init_pci(sc)) != 0) 365 goto out; 366 367 /* 368 * Initialise driver queues. 369 */ 370 ciss_initq_free(sc); 371 ciss_initq_busy(sc); 372 ciss_initq_complete(sc); 373 374 /* 375 * Initialise command/request pool. 376 */ 377 if ((error = ciss_init_requests(sc)) != 0) 378 goto out; 379 380 /* 381 * Get adapter information. 382 */ 383 if ((error = ciss_identify_adapter(sc)) != 0) 384 goto out; 385 386 /* 387 * Build our private table of logical devices. 388 */ 389 if ((error = ciss_init_logical(sc)) != 0) 390 goto out; 391 392 /* 393 * Enable interrupts so that the CAM scan can complete. 394 */ 395 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 396 397 /* 398 * Initialise the CAM interface. 399 */ 400 if ((error = ciss_cam_init(sc)) != 0) 401 goto out; 402 403 /* 404 * Start the heartbeat routine and event chain. 405 */ 406 ciss_periodic(sc); 407 408 /* 409 * Create the control device. 410 */ 411 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev)); 412 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 413 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 414 "ciss%d", device_get_unit(sc->ciss_dev)); 415 sc->ciss_dev_t->si_drv1 = sc; 416 417 /* 418 * The adapter is running; synchronous commands can now sleep 419 * waiting for an interrupt to signal completion. 420 */ 421 sc->ciss_flags |= CISS_FLAG_RUNNING; 422 423 error = 0; 424 out: 425 if (error != 0) 426 ciss_free(sc); 427 return(error); 428 } 429 430 /************************************************************************ 431 * Detach the driver from this adapter. 432 */ 433 static int 434 ciss_detach(device_t dev) 435 { 436 struct ciss_softc *sc = device_get_softc(dev); 437 438 debug_called(1); 439 440 /* flush adapter cache */ 441 ciss_flush_adapter(sc); 442 443 /* release all resources */ 444 ciss_free(sc); 445 446 return(0); 447 448 } 449 450 /************************************************************************ 451 * Prepare adapter for system shutdown. 452 */ 453 static int 454 ciss_shutdown(device_t dev) 455 { 456 struct ciss_softc *sc = device_get_softc(dev); 457 458 debug_called(1); 459 460 /* flush adapter cache */ 461 ciss_flush_adapter(sc); 462 463 return(0); 464 } 465 466 /************************************************************************ 467 * Perform PCI-specific attachment actions. 468 */ 469 static int 470 ciss_init_pci(struct ciss_softc *sc) 471 { 472 uintptr_t cbase, csize, cofs; 473 int error; 474 475 debug_called(1); 476 477 /* 478 * Allocate register window first (we need this to find the config 479 * struct). 480 */ 481 error = ENXIO; 482 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 483 if ((sc->ciss_regs_resource = 484 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 485 0, ~0, 1, RF_ACTIVE)) == NULL) { 486 ciss_printf(sc, "can't allocate register window\n"); 487 return(ENXIO); 488 } 489 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 490 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 491 492 /* 493 * Find the BAR holding the config structure. If it's not the one 494 * we already mapped for registers, map it too. 495 */ 496 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 497 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 498 if ((sc->ciss_cfg_resource = 499 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 500 0, ~0, 1, RF_ACTIVE)) == NULL) { 501 ciss_printf(sc, "can't allocate config window\n"); 502 return(ENXIO); 503 } 504 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 505 csize = rman_get_end(sc->ciss_cfg_resource) - 506 rman_get_start(sc->ciss_cfg_resource) + 1; 507 } else { 508 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 509 csize = rman_get_end(sc->ciss_regs_resource) - 510 rman_get_start(sc->ciss_regs_resource) + 1; 511 } 512 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 513 514 /* 515 * Use the base/size/offset values we just calculated to 516 * sanity-check the config structure. If it's OK, point to it. 517 */ 518 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 519 ciss_printf(sc, "config table outside window\n"); 520 return(ENXIO); 521 } 522 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 523 debug(1, "config struct at %p", sc->ciss_cfg); 524 525 /* 526 * Validate the config structure. If we supported other transport 527 * methods, we could select amongst them at this point in time. 528 */ 529 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 530 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 531 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 532 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 533 return(ENXIO); 534 } 535 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 536 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 537 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 538 sc->ciss_cfg->valence); 539 return(ENXIO); 540 } 541 542 /* 543 * Put the board into simple mode, and tell it we're using the low 544 * 4GB of RAM. Set the default interrupt coalescing options. 545 */ 546 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 547 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 548 return(ENXIO); 549 } 550 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 551 sc->ciss_cfg->command_physlimit = 0; 552 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 553 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 554 555 if (ciss_update_config(sc)) { 556 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 557 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 558 return(ENXIO); 559 } 560 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 561 ciss_printf(sc, 562 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 563 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 564 return(ENXIO); 565 } 566 567 /* 568 * Wait for the adapter to come ready. 569 */ 570 if ((error = ciss_wait_adapter(sc)) != 0) 571 return(error); 572 573 /* 574 * Turn off interrupts before we go routing anything. 575 */ 576 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 577 578 /* 579 * Allocate and set up our interrupt. 580 */ 581 sc->ciss_irq_rid = 0; 582 if ((sc->ciss_irq_resource = 583 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 584 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 585 ciss_printf(sc, "can't allocate interrupt\n"); 586 return(ENXIO); 587 } 588 error = bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 589 INTR_TYPE_CAM, ciss_intr, sc, 590 &sc->ciss_intr, NULL); 591 if (error) { 592 ciss_printf(sc, "can't set up interrupt\n"); 593 return(ENXIO); 594 } 595 596 /* 597 * Allocate the parent bus DMA tag appropriate for our PCI 598 * interface. 599 * 600 * Note that "simple" adapters can only address within a 32-bit 601 * span. 602 */ 603 if (bus_dma_tag_create(NULL, /* parent */ 604 1, 0, /* alignment, boundary */ 605 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 606 BUS_SPACE_MAXADDR, /* highaddr */ 607 NULL, NULL, /* filter, filterarg */ 608 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 609 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 610 BUS_DMA_ALLOCNOW, /* flags */ 611 &sc->ciss_parent_dmat)) { 612 ciss_printf(sc, "can't allocate parent DMA tag\n"); 613 return(ENOMEM); 614 } 615 616 /* 617 * Create DMA tag for mapping buffers into adapter-addressable 618 * space. 619 */ 620 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 621 1, 0, /* alignment, boundary */ 622 BUS_SPACE_MAXADDR, /* lowaddr */ 623 BUS_SPACE_MAXADDR, /* highaddr */ 624 NULL, NULL, /* filter, filterarg */ 625 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 626 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 627 0, /* flags */ 628 &sc->ciss_buffer_dmat)) { 629 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 630 return(ENOMEM); 631 } 632 return(0); 633 } 634 635 /************************************************************************ 636 * Wait for the adapter to come ready. 637 */ 638 static int 639 ciss_wait_adapter(struct ciss_softc *sc) 640 { 641 int i; 642 643 debug_called(1); 644 645 /* 646 * Wait for the adapter to come ready. 647 */ 648 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 649 ciss_printf(sc, "waiting for adapter to come ready...\n"); 650 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 651 DELAY(1000000); /* one second */ 652 if (i > 30) { 653 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 654 return(EIO); 655 } 656 } 657 } 658 return(0); 659 } 660 661 /************************************************************************ 662 * Flush the adapter cache. 663 */ 664 static int 665 ciss_flush_adapter(struct ciss_softc *sc) 666 { 667 struct ciss_request *cr; 668 struct ciss_bmic_flush_cache *cbfc; 669 int error, command_status; 670 671 debug_called(1); 672 673 cr = NULL; 674 cbfc = NULL; 675 676 /* 677 * Build a BMIC request to flush the cache. We don't disable 678 * it, as we may be going to do more I/O (eg. we are emulating 679 * the Synchronise Cache command). 680 */ 681 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 682 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 683 (void **)&cbfc, sizeof(*cbfc))) != 0) 684 goto out; 685 686 /* 687 * Submit the request and wait for it to complete. 688 */ 689 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 690 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 691 goto out; 692 } 693 694 /* 695 * Check response. 696 */ 697 ciss_report_request(cr, &command_status, NULL); 698 switch(command_status) { 699 case CISS_CMD_STATUS_SUCCESS: 700 break; 701 default: 702 ciss_printf(sc, "error flushing cache (%s)\n", 703 ciss_name_command_status(command_status)); 704 error = EIO; 705 goto out; 706 } 707 708 out: 709 if (cbfc != NULL) 710 free(cbfc, CISS_MALLOC_CLASS); 711 if (cr != NULL) 712 ciss_release_request(cr); 713 return(error); 714 } 715 716 /************************************************************************ 717 * Allocate memory for the adapter command structures, initialise 718 * the request structures. 719 * 720 * Note that the entire set of commands are allocated in a single 721 * contiguous slab. 722 */ 723 static int 724 ciss_init_requests(struct ciss_softc *sc) 725 { 726 struct ciss_request *cr; 727 int i; 728 729 debug_called(1); 730 731 /* 732 * Calculate the number of request structures/commands we are 733 * going to provide for this adapter. 734 */ 735 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 736 737 if (1/*bootverbose*/) 738 ciss_printf(sc, "using %d of %d available commands\n", 739 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 740 741 /* 742 * Create the DMA tag for commands. 743 */ 744 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 745 1, 0, /* alignment, boundary */ 746 BUS_SPACE_MAXADDR, /* lowaddr */ 747 BUS_SPACE_MAXADDR, /* highaddr */ 748 NULL, NULL, /* filter, filterarg */ 749 CISS_COMMAND_ALLOC_SIZE * 750 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 751 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 752 0, /* flags */ 753 &sc->ciss_command_dmat)) { 754 ciss_printf(sc, "can't allocate command DMA tag\n"); 755 return(ENOMEM); 756 } 757 /* 758 * Allocate memory and make it available for DMA. 759 */ 760 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 761 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 762 ciss_printf(sc, "can't allocate command memory\n"); 763 return(ENOMEM); 764 } 765 bus_dmamap_create(sc->ciss_command_dmat, 0, &sc->ciss_command_map); 766 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 767 sizeof(struct ciss_command) * sc->ciss_max_requests, 768 ciss_command_map_helper, sc, 0); 769 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 770 771 /* 772 * Set up the request and command structures, push requests onto 773 * the free queue. 774 */ 775 for (i = 1; i < sc->ciss_max_requests; i++) { 776 cr = &sc->ciss_request[i]; 777 cr->cr_sc = sc; 778 cr->cr_tag = i; 779 ciss_enqueue_free(cr); 780 } 781 return(0); 782 } 783 784 static void 785 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 786 { 787 struct ciss_softc *sc = (struct ciss_softc *)arg; 788 789 sc->ciss_command_phys = segs->ds_addr; 790 } 791 792 /************************************************************************ 793 * Identify the adapter, print some information about it. 794 */ 795 static int 796 ciss_identify_adapter(struct ciss_softc *sc) 797 { 798 struct ciss_request *cr; 799 int error, command_status; 800 801 debug_called(1); 802 803 cr = NULL; 804 805 /* 806 * Get a request, allocate storage for the adapter data. 807 */ 808 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 809 (void **)&sc->ciss_id, 810 sizeof(*sc->ciss_id))) != 0) 811 goto out; 812 813 /* 814 * Submit the request and wait for it to complete. 815 */ 816 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 817 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 818 goto out; 819 } 820 821 /* 822 * Check response. 823 */ 824 ciss_report_request(cr, &command_status, NULL); 825 switch(command_status) { 826 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 827 break; 828 case CISS_CMD_STATUS_DATA_UNDERRUN: 829 case CISS_CMD_STATUS_DATA_OVERRUN: 830 ciss_printf(sc, "data over/underrun reading adapter information\n"); 831 default: 832 ciss_printf(sc, "error reading adapter information (%s)\n", 833 ciss_name_command_status(command_status)); 834 error = EIO; 835 goto out; 836 } 837 838 /* sanity-check reply */ 839 if (!sc->ciss_id->big_map_supported) { 840 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 841 error = ENXIO; 842 goto out; 843 } 844 845 #if 0 846 /* XXX later revisions may not need this */ 847 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 848 #endif 849 850 /* XXX only really required for old 5300 adapters? */ 851 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 852 853 /* print information */ 854 if (1/*bootverbose*/) { 855 ciss_printf(sc, " %d logical drive%s configured\n", 856 sc->ciss_id->configured_logical_drives, 857 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 858 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 859 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 860 861 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 862 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 863 ciss_printf(sc, " supported I/O methods 0x%b\n", 864 sc->ciss_cfg->supported_methods, 865 "\20\1READY\2simple\3performant\4MEMQ\n"); 866 ciss_printf(sc, " active I/O method 0x%b\n", 867 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 868 ciss_printf(sc, " 4G page base 0x%08x\n", 869 sc->ciss_cfg->command_physlimit); 870 ciss_printf(sc, " interrupt coalesce delay %dus\n", 871 sc->ciss_cfg->interrupt_coalesce_delay); 872 ciss_printf(sc, " interrupt coalesce count %d\n", 873 sc->ciss_cfg->interrupt_coalesce_count); 874 ciss_printf(sc, " max outstanding commands %d\n", 875 sc->ciss_cfg->max_outstanding_commands); 876 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 877 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 878 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 879 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 880 } 881 882 out: 883 if (error) { 884 if (sc->ciss_id != NULL) { 885 free(sc->ciss_id, CISS_MALLOC_CLASS); 886 sc->ciss_id = NULL; 887 } 888 } 889 if (cr != NULL) 890 ciss_release_request(cr); 891 return(error); 892 } 893 894 /************************************************************************ 895 * Find logical drives on the adapter. 896 */ 897 static int 898 ciss_init_logical(struct ciss_softc *sc) 899 { 900 struct ciss_request *cr; 901 struct ciss_command *cc; 902 struct ciss_report_cdb *crc; 903 struct ciss_lun_report *cll; 904 int error, i; 905 size_t report_size; 906 int ndrives; 907 int command_status; 908 909 debug_called(1); 910 911 cr = NULL; 912 cll = NULL; 913 914 /* 915 * Get a request, allocate storage for the address list. 916 */ 917 if ((error = ciss_get_request(sc, &cr)) != 0) 918 goto out; 919 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 920 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 921 922 /* 923 * Build the Report Logical LUNs command. 924 */ 925 cc = CISS_FIND_COMMAND(cr); 926 cr->cr_data = cll; 927 cr->cr_length = report_size; 928 cr->cr_flags = CISS_REQ_DATAIN; 929 930 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 931 cc->header.address.physical.bus = 0; 932 cc->header.address.physical.target = 0; 933 cc->cdb.cdb_length = sizeof(*crc); 934 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 935 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 936 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 937 cc->cdb.timeout = 30; /* XXX better suggestions? */ 938 939 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 940 bzero(crc, sizeof(*crc)); 941 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 942 crc->length = htonl(report_size); /* big-endian field */ 943 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 944 945 /* 946 * Submit the request and wait for it to complete. (timeout 947 * here should be much greater than above) 948 */ 949 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 950 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 951 goto out; 952 } 953 954 /* 955 * Check response. Note that data over/underrun is OK. 956 */ 957 ciss_report_request(cr, &command_status, NULL); 958 switch(command_status) { 959 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 960 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 961 break; 962 case CISS_CMD_STATUS_DATA_OVERRUN: 963 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 964 CISS_MAX_LOGICAL); 965 break; 966 default: 967 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 968 ciss_name_command_status(command_status)); 969 error = EIO; 970 goto out; 971 } 972 ciss_release_request(cr); 973 cr = NULL; 974 975 /* sanity-check reply */ 976 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 977 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 978 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 979 ndrives, CISS_MAX_LOGICAL); 980 return(ENXIO); 981 } 982 983 /* 984 * Save logical drive information. 985 */ 986 if (1/*bootverbose*/) 987 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 988 if (ndrives != sc->ciss_id->configured_logical_drives) 989 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 990 ndrives, sc->ciss_id->configured_logical_drives); 991 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 992 if (i < ndrives) { 993 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 994 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 995 continue; 996 /* 997 * If the drive has had media exchanged, we should bring it online. 998 */ 999 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 1000 ciss_accept_media(sc, i, 0); 1001 1002 } else { 1003 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1004 } 1005 } 1006 error = 0; 1007 1008 out: 1009 /* 1010 * Note that if the error is a timeout, we are taking a slight 1011 * risk here and assuming that the adapter will not respond at a 1012 * later time, scribbling over host memory. 1013 */ 1014 if (cr != NULL) 1015 ciss_release_request(cr); 1016 if (cll != NULL) 1017 free(cll, CISS_MALLOC_CLASS); 1018 return(error); 1019 } 1020 1021 static int 1022 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1023 { 1024 struct ciss_request *cr; 1025 struct ciss_command *cc; 1026 struct scsi_inquiry *inq; 1027 int error; 1028 int command_status; 1029 int lun; 1030 1031 cr = NULL; 1032 lun = ld->cl_address.logical.lun; 1033 1034 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1035 1036 if ((error = ciss_get_request(sc, &cr)) != 0) 1037 goto out; 1038 1039 cc = CISS_FIND_COMMAND(cr); 1040 cr->cr_data = &ld->cl_geometry; 1041 cr->cr_length = sizeof(ld->cl_geometry); 1042 cr->cr_flags = CISS_REQ_DATAIN; 1043 1044 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1045 cc->header.address.logical.lun = lun; 1046 cc->cdb.cdb_length = 6; 1047 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1048 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1049 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1050 cc->cdb.timeout = 30; 1051 1052 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1053 inq->opcode = INQUIRY; 1054 inq->byte2 = SI_EVPD; 1055 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1056 inq->length = sizeof(ld->cl_geometry); 1057 1058 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1059 ciss_printf(sc, "error getting geometry (%d)\n", error); 1060 goto out; 1061 } 1062 1063 ciss_report_request(cr, &command_status, NULL); 1064 switch(command_status) { 1065 case CISS_CMD_STATUS_SUCCESS: 1066 case CISS_CMD_STATUS_DATA_UNDERRUN: 1067 break; 1068 case CISS_CMD_STATUS_DATA_OVERRUN: 1069 ciss_printf(sc, "WARNING: Data overrun\n"); 1070 break; 1071 default: 1072 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1073 ciss_name_command_status(command_status)); 1074 break; 1075 } 1076 1077 out: 1078 if (cr != NULL) 1079 ciss_release_request(cr); 1080 return(error); 1081 } 1082 /************************************************************************ 1083 * Identify a logical drive, initialise state related to it. 1084 */ 1085 static int 1086 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1087 { 1088 struct ciss_request *cr; 1089 struct ciss_command *cc; 1090 struct ciss_bmic_cdb *cbc; 1091 int error, command_status; 1092 1093 debug_called(1); 1094 1095 cr = NULL; 1096 1097 /* 1098 * Build a BMIC request to fetch the drive ID. 1099 */ 1100 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1101 (void **)&ld->cl_ldrive, 1102 sizeof(*ld->cl_ldrive))) != 0) 1103 goto out; 1104 cc = CISS_FIND_COMMAND(cr); 1105 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1106 cbc->log_drive = ld->cl_address.logical.lun; 1107 1108 /* 1109 * Submit the request and wait for it to complete. 1110 */ 1111 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1112 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1113 goto out; 1114 } 1115 1116 /* 1117 * Check response. 1118 */ 1119 ciss_report_request(cr, &command_status, NULL); 1120 switch(command_status) { 1121 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1122 break; 1123 case CISS_CMD_STATUS_DATA_UNDERRUN: 1124 case CISS_CMD_STATUS_DATA_OVERRUN: 1125 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1126 default: 1127 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1128 ciss_name_command_status(command_status)); 1129 error = EIO; 1130 goto out; 1131 } 1132 ciss_release_request(cr); 1133 cr = NULL; 1134 1135 /* 1136 * Build a CISS BMIC command to get the logical drive status. 1137 */ 1138 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1139 goto out; 1140 1141 /* 1142 * Get the logical drive geometry. 1143 */ 1144 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1145 goto out; 1146 1147 /* 1148 * Print the drive's basic characteristics. 1149 */ 1150 if (1/*bootverbose*/) { 1151 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1152 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1153 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1154 ld->cl_ldrive->block_size)); 1155 1156 ciss_print_ldrive(sc, ld); 1157 } 1158 out: 1159 if (error != 0) { 1160 /* make the drive not-exist */ 1161 ld->cl_status = CISS_LD_NONEXISTENT; 1162 if (ld->cl_ldrive != NULL) { 1163 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1164 ld->cl_ldrive = NULL; 1165 } 1166 if (ld->cl_lstatus != NULL) { 1167 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1168 ld->cl_lstatus = NULL; 1169 } 1170 } 1171 if (cr != NULL) 1172 ciss_release_request(cr); 1173 1174 return(error); 1175 } 1176 1177 /************************************************************************ 1178 * Get status for a logical drive. 1179 * 1180 * XXX should we also do this in response to Test Unit Ready? 1181 */ 1182 static int 1183 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1184 { 1185 struct ciss_request *cr; 1186 struct ciss_command *cc; 1187 struct ciss_bmic_cdb *cbc; 1188 int error, command_status; 1189 1190 /* 1191 * Build a CISS BMIC command to get the logical drive status. 1192 */ 1193 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1194 (void **)&ld->cl_lstatus, 1195 sizeof(*ld->cl_lstatus))) != 0) 1196 goto out; 1197 cc = CISS_FIND_COMMAND(cr); 1198 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1199 cbc->log_drive = ld->cl_address.logical.lun; 1200 1201 /* 1202 * Submit the request and wait for it to complete. 1203 */ 1204 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1205 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1206 goto out; 1207 } 1208 1209 /* 1210 * Check response. 1211 */ 1212 ciss_report_request(cr, &command_status, NULL); 1213 switch(command_status) { 1214 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1215 break; 1216 case CISS_CMD_STATUS_DATA_UNDERRUN: 1217 case CISS_CMD_STATUS_DATA_OVERRUN: 1218 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1219 default: 1220 ciss_printf(sc, "error reading logical drive status (%s)\n", 1221 ciss_name_command_status(command_status)); 1222 error = EIO; 1223 goto out; 1224 } 1225 1226 /* 1227 * Set the drive's summary status based on the returned status. 1228 * 1229 * XXX testing shows that a failed JBOD drive comes back at next 1230 * boot in "queued for expansion" mode. WTF? 1231 */ 1232 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1233 1234 out: 1235 if (cr != NULL) 1236 ciss_release_request(cr); 1237 return(error); 1238 } 1239 1240 /************************************************************************ 1241 * Notify the adapter of a config update. 1242 */ 1243 static int 1244 ciss_update_config(struct ciss_softc *sc) 1245 { 1246 int i; 1247 1248 debug_called(1); 1249 1250 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1251 for (i = 0; i < 1000; i++) { 1252 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1253 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1254 return(0); 1255 } 1256 DELAY(1000); 1257 } 1258 return(1); 1259 } 1260 1261 /************************************************************************ 1262 * Accept new media into a logical drive. 1263 * 1264 * XXX The drive has previously been offline; it would be good if we 1265 * could make sure it's not open right now. 1266 */ 1267 static int 1268 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1269 { 1270 struct ciss_request *cr; 1271 struct ciss_command *cc; 1272 struct ciss_bmic_cdb *cbc; 1273 int error; 1274 1275 debug(0, "bringing logical drive %d back online %ssynchronously", 1276 ldrive, async ? "a" : ""); 1277 1278 /* 1279 * Build a CISS BMIC command to bring the drive back online. 1280 */ 1281 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1282 NULL, 0)) != 0) 1283 goto out; 1284 cc = CISS_FIND_COMMAND(cr); 1285 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1286 cbc->log_drive = ldrive; 1287 1288 /* 1289 * Dispatch the request asynchronously if we can't sleep waiting 1290 * for it to complete. 1291 */ 1292 if (async) { 1293 cr->cr_complete = ciss_accept_media_complete; 1294 if ((error = ciss_start(cr)) != 0) 1295 goto out; 1296 return(0); 1297 } else { 1298 /* 1299 * Submit the request and wait for it to complete. 1300 */ 1301 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1302 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1303 goto out; 1304 } 1305 } 1306 1307 /* 1308 * Call the completion callback manually. 1309 */ 1310 ciss_accept_media_complete(cr); 1311 return(0); 1312 1313 out: 1314 if (cr != NULL) 1315 ciss_release_request(cr); 1316 return(error); 1317 } 1318 1319 static void 1320 ciss_accept_media_complete(struct ciss_request *cr) 1321 { 1322 int command_status; 1323 1324 /* 1325 * Check response. 1326 */ 1327 ciss_report_request(cr, &command_status, NULL); 1328 switch(command_status) { 1329 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1330 /* we should get a logical drive status changed event here */ 1331 break; 1332 default: 1333 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1334 ciss_name_command_status(command_status)); 1335 break; 1336 } 1337 ciss_release_request(cr); 1338 } 1339 1340 /************************************************************************ 1341 * Release adapter resources. 1342 */ 1343 static void 1344 ciss_free(struct ciss_softc *sc) 1345 { 1346 debug_called(1); 1347 1348 /* we're going away */ 1349 sc->ciss_flags |= CISS_FLAG_ABORTING; 1350 1351 /* terminate the periodic heartbeat routine */ 1352 callout_stop(&sc->ciss_periodic); 1353 1354 /* cancel the Event Notify chain */ 1355 ciss_notify_abort(sc); 1356 1357 /* free the controller data */ 1358 if (sc->ciss_id != NULL) 1359 free(sc->ciss_id, CISS_MALLOC_CLASS); 1360 1361 /* release I/O resources */ 1362 if (sc->ciss_regs_resource != NULL) 1363 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1364 sc->ciss_regs_rid, sc->ciss_regs_resource); 1365 if (sc->ciss_cfg_resource != NULL) 1366 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1367 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1368 if (sc->ciss_intr != NULL) 1369 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1370 if (sc->ciss_irq_resource != NULL) 1371 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1372 sc->ciss_irq_rid, sc->ciss_irq_resource); 1373 1374 /* destroy DMA tags */ 1375 if (sc->ciss_parent_dmat) 1376 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1377 if (sc->ciss_buffer_dmat) 1378 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1379 1380 /* destroy command memory and DMA tag */ 1381 if (sc->ciss_command != NULL) { 1382 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1383 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1384 bus_dmamap_destroy(sc->ciss_command_dmat, sc->ciss_command_map); 1385 } 1386 if (sc->ciss_buffer_dmat) 1387 bus_dma_tag_destroy(sc->ciss_command_dmat); 1388 1389 /* disconnect from CAM */ 1390 if (sc->ciss_cam_sim) { 1391 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1392 cam_sim_free(sc->ciss_cam_sim); 1393 } 1394 if (sc->ciss_cam_devq) 1395 cam_simq_release(sc->ciss_cam_devq); 1396 /* XXX what about ciss_cam_path? */ 1397 } 1398 1399 /************************************************************************ 1400 * Give a command to the adapter. 1401 * 1402 * Note that this uses the simple transport layer directly. If we 1403 * want to add support for other layers, we'll need a switch of some 1404 * sort. 1405 * 1406 * Note that the simple transport layer has no way of refusing a 1407 * command; we only have as many request structures as the adapter 1408 * supports commands, so we don't have to check (this presumes that 1409 * the adapter can handle commands as fast as we throw them at it). 1410 */ 1411 static int 1412 ciss_start(struct ciss_request *cr) 1413 { 1414 struct ciss_command *cc; /* XXX debugging only */ 1415 int error; 1416 1417 cc = CISS_FIND_COMMAND(cr); 1418 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1419 1420 /* 1421 * Map the request's data. 1422 */ 1423 if ((error = ciss_map_request(cr))) 1424 return(error); 1425 1426 #if 0 1427 ciss_print_request(cr); 1428 #endif 1429 1430 /* 1431 * Post the command to the adapter. 1432 */ 1433 ciss_enqueue_busy(cr); 1434 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1435 1436 return(0); 1437 } 1438 1439 /************************************************************************ 1440 * Fetch completed request(s) from the adapter, queue them for 1441 * completion handling. 1442 * 1443 * Note that this uses the simple transport layer directly. If we 1444 * want to add support for other layers, we'll need a switch of some 1445 * sort. 1446 * 1447 * Note that the simple transport mechanism does not require any 1448 * reentrancy protection; the OPQ read is atomic. If there is a 1449 * chance of a race with something else that might move the request 1450 * off the busy list, then we will have to lock against that 1451 * (eg. timeouts, etc.) 1452 */ 1453 static void 1454 ciss_done(struct ciss_softc *sc) 1455 { 1456 struct ciss_request *cr; 1457 struct ciss_command *cc; 1458 u_int32_t tag, index; 1459 int complete; 1460 1461 debug_called(3); 1462 1463 /* 1464 * Loop quickly taking requests from the adapter and moving them 1465 * from the busy queue to the completed queue. 1466 */ 1467 complete = 0; 1468 for (;;) { 1469 1470 /* see if the OPQ contains anything */ 1471 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1472 break; 1473 1474 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1475 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1476 break; 1477 index = tag >> 2; 1478 debug(2, "completed command %d%s", index, 1479 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1480 if (index >= sc->ciss_max_requests) { 1481 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1482 continue; 1483 } 1484 cr = &(sc->ciss_request[index]); 1485 cc = CISS_FIND_COMMAND(cr); 1486 cc->header.host_tag = tag; /* not updated by adapter */ 1487 if (ciss_remove_busy(cr)) { 1488 /* assume this is garbage out of the adapter */ 1489 ciss_printf(sc, "completed nonbusy request %d\n", index); 1490 } else { 1491 ciss_enqueue_complete(cr); 1492 } 1493 complete = 1; 1494 } 1495 1496 /* 1497 * Invoke completion processing. If we can defer this out of 1498 * interrupt context, that'd be good. 1499 */ 1500 if (complete) 1501 ciss_complete(sc); 1502 } 1503 1504 /************************************************************************ 1505 * Take an interrupt from the adapter. 1506 */ 1507 static void 1508 ciss_intr(void *arg) 1509 { 1510 struct ciss_softc *sc = (struct ciss_softc *)arg; 1511 1512 /* 1513 * The only interrupt we recognise indicates that there are 1514 * entries in the outbound post queue. 1515 */ 1516 ciss_done(sc); 1517 } 1518 1519 /************************************************************************ 1520 * Process completed requests. 1521 * 1522 * Requests can be completed in three fashions: 1523 * 1524 * - by invoking a callback function (cr_complete is non-null) 1525 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1526 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1527 */ 1528 static void 1529 ciss_complete(struct ciss_softc *sc) 1530 { 1531 struct ciss_request *cr; 1532 1533 debug_called(2); 1534 1535 /* 1536 * Loop taking requests off the completed queue and performing 1537 * completion processing on them. 1538 */ 1539 for (;;) { 1540 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1541 break; 1542 ciss_unmap_request(cr); 1543 1544 /* 1545 * If the request has a callback, invoke it. 1546 */ 1547 if (cr->cr_complete != NULL) { 1548 cr->cr_complete(cr); 1549 continue; 1550 } 1551 1552 /* 1553 * If someone is sleeping on this request, wake them up. 1554 */ 1555 if (cr->cr_flags & CISS_REQ_SLEEP) { 1556 cr->cr_flags &= ~CISS_REQ_SLEEP; 1557 wakeup(cr); 1558 continue; 1559 } 1560 1561 /* 1562 * If someone is polling this request for completion, signal. 1563 */ 1564 if (cr->cr_flags & CISS_REQ_POLL) { 1565 cr->cr_flags &= ~CISS_REQ_POLL; 1566 continue; 1567 } 1568 1569 /* 1570 * Give up and throw the request back on the free queue. This 1571 * should never happen; resources will probably be lost. 1572 */ 1573 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1574 ciss_enqueue_free(cr); 1575 } 1576 } 1577 1578 /************************************************************************ 1579 * Report on the completion status of a request, and pass back SCSI 1580 * and command status values. 1581 */ 1582 static int 1583 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1584 { 1585 struct ciss_command *cc; 1586 struct ciss_error_info *ce; 1587 1588 debug_called(2); 1589 1590 cc = CISS_FIND_COMMAND(cr); 1591 ce = (struct ciss_error_info *)&(cc->sg[0]); 1592 1593 /* 1594 * We don't consider data under/overrun an error for the Report 1595 * Logical/Physical LUNs commands. 1596 */ 1597 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1598 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1599 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1600 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1601 debug(2, "ignoring irrelevant under/overrun error"); 1602 } 1603 1604 /* 1605 * Check the command's error bit, if clear, there's no status and 1606 * everything is OK. 1607 */ 1608 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1609 if (scsi_status != NULL) 1610 *scsi_status = SCSI_STATUS_OK; 1611 if (command_status != NULL) 1612 *command_status = CISS_CMD_STATUS_SUCCESS; 1613 return(0); 1614 } else { 1615 if (command_status != NULL) 1616 *command_status = ce->command_status; 1617 if (scsi_status != NULL) { 1618 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1619 *scsi_status = ce->scsi_status; 1620 } else { 1621 *scsi_status = -1; 1622 } 1623 } 1624 if (bootverbose) 1625 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1626 ce->command_status, ciss_name_command_status(ce->command_status), 1627 ce->scsi_status); 1628 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1629 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1630 ce->additional_error_info.invalid_command.offense_size, 1631 ce->additional_error_info.invalid_command.offense_offset, 1632 ce->additional_error_info.invalid_command.offense_value); 1633 } 1634 } 1635 return(1); 1636 } 1637 1638 /************************************************************************ 1639 * Issue a request and don't return until it's completed. 1640 * 1641 * Depending on adapter status, we may poll or sleep waiting for 1642 * completion. 1643 */ 1644 static int 1645 ciss_synch_request(struct ciss_request *cr, int timeout) 1646 { 1647 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1648 return(ciss_wait_request(cr, timeout)); 1649 } else { 1650 return(ciss_poll_request(cr, timeout)); 1651 } 1652 } 1653 1654 /************************************************************************ 1655 * Issue a request and poll for completion. 1656 * 1657 * Timeout in milliseconds. 1658 */ 1659 static int 1660 ciss_poll_request(struct ciss_request *cr, int timeout) 1661 { 1662 int error; 1663 1664 debug_called(2); 1665 1666 cr->cr_flags |= CISS_REQ_POLL; 1667 if ((error = ciss_start(cr)) != 0) 1668 return(error); 1669 1670 do { 1671 ciss_done(cr->cr_sc); 1672 if (!(cr->cr_flags & CISS_REQ_POLL)) 1673 return(0); 1674 DELAY(1000); 1675 } while (timeout-- >= 0); 1676 return(EWOULDBLOCK); 1677 } 1678 1679 /************************************************************************ 1680 * Issue a request and sleep waiting for completion. 1681 * 1682 * Timeout in milliseconds. Note that a spurious wakeup will reset 1683 * the timeout. 1684 */ 1685 static int 1686 ciss_wait_request(struct ciss_request *cr, int timeout) 1687 { 1688 int error; 1689 1690 debug_called(2); 1691 1692 cr->cr_flags |= CISS_REQ_SLEEP; 1693 if ((error = ciss_start(cr)) != 0) 1694 return(error); 1695 1696 crit_enter(); 1697 while (cr->cr_flags & CISS_REQ_SLEEP) { 1698 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1699 /* 1700 * On wakeup or interruption due to restartable activity, go 1701 * back and check to see if we're done. 1702 */ 1703 if ((error == 0) || (error == ERESTART)) { 1704 error = 0; 1705 continue; 1706 } 1707 /* 1708 * Timeout, interrupted system call, etc. 1709 */ 1710 break; 1711 } 1712 crit_exit(); 1713 return(error); 1714 } 1715 1716 #if 0 1717 /************************************************************************ 1718 * Abort a request. Note that a potential exists here to race the 1719 * request being completed; the caller must deal with this. 1720 */ 1721 static int 1722 ciss_abort_request(struct ciss_request *ar) 1723 { 1724 struct ciss_request *cr; 1725 struct ciss_command *cc; 1726 struct ciss_message_cdb *cmc; 1727 int error; 1728 1729 debug_called(1); 1730 1731 /* get a request */ 1732 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1733 return(error); 1734 1735 /* build the abort command */ 1736 cc = CISS_FIND_COMMAND(cr); 1737 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1738 cc->header.address.physical.target = 0; 1739 cc->header.address.physical.bus = 0; 1740 cc->cdb.cdb_length = sizeof(*cmc); 1741 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1742 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1743 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1744 cc->cdb.timeout = 30; 1745 1746 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1747 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1748 cmc->type = CISS_MESSAGE_ABORT_TASK; 1749 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1750 1751 /* 1752 * Send the request and wait for a response. If we believe we 1753 * aborted the request OK, clear the flag that indicates it's 1754 * running. 1755 */ 1756 error = ciss_synch_request(cr, 35 * 1000); 1757 if (!error) 1758 error = ciss_report_request(cr, NULL, NULL); 1759 ciss_release_request(cr); 1760 1761 return(error); 1762 } 1763 #endif 1764 1765 1766 /************************************************************************ 1767 * Fetch and initialise a request 1768 */ 1769 static int 1770 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1771 { 1772 struct ciss_request *cr; 1773 1774 debug_called(2); 1775 1776 /* 1777 * Get a request and clean it up. 1778 */ 1779 if ((cr = ciss_dequeue_free(sc)) == NULL) 1780 return(ENOMEM); 1781 1782 cr->cr_data = NULL; 1783 cr->cr_flags = 0; 1784 cr->cr_complete = NULL; 1785 1786 ciss_preen_command(cr); 1787 *crp = cr; 1788 return(0); 1789 } 1790 1791 static void 1792 ciss_preen_command(struct ciss_request *cr) 1793 { 1794 struct ciss_command *cc; 1795 u_int32_t cmdphys; 1796 1797 /* 1798 * Clean up the command structure. 1799 * 1800 * Note that we set up the error_info structure here, since the 1801 * length can be overwritten by any command. 1802 */ 1803 cc = CISS_FIND_COMMAND(cr); 1804 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1805 cc->header.sg_total = 0; 1806 cc->header.host_tag = cr->cr_tag << 2; 1807 cc->header.host_tag_zeroes = 0; 1808 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1809 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1810 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1811 1812 } 1813 1814 /************************************************************************ 1815 * Release a request to the free list. 1816 */ 1817 static void 1818 ciss_release_request(struct ciss_request *cr) 1819 { 1820 struct ciss_softc *sc; 1821 1822 debug_called(2); 1823 1824 sc = cr->cr_sc; 1825 1826 /* release the request to the free queue */ 1827 ciss_requeue_free(cr); 1828 } 1829 1830 /************************************************************************ 1831 * Allocate a request that will be used to send a BMIC command. Do some 1832 * of the common setup here to avoid duplicating it everywhere else. 1833 */ 1834 static int 1835 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1836 int opcode, void **bufp, size_t bufsize) 1837 { 1838 struct ciss_request *cr; 1839 struct ciss_command *cc; 1840 struct ciss_bmic_cdb *cbc; 1841 void *buf; 1842 int error; 1843 int dataout; 1844 1845 debug_called(2); 1846 1847 cr = NULL; 1848 buf = NULL; 1849 1850 /* 1851 * Get a request. 1852 */ 1853 if ((error = ciss_get_request(sc, &cr)) != 0) 1854 goto out; 1855 1856 /* 1857 * Allocate data storage if requested, determine the data direction. 1858 */ 1859 dataout = 0; 1860 if ((bufsize > 0) && (bufp != NULL)) { 1861 if (*bufp == NULL) { 1862 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1863 } else { 1864 buf = *bufp; 1865 dataout = 1; /* we are given a buffer, so we are writing */ 1866 } 1867 } 1868 1869 /* 1870 * Build a CISS BMIC command to get the logical drive ID. 1871 */ 1872 cr->cr_data = buf; 1873 cr->cr_length = bufsize; 1874 if (!dataout) 1875 cr->cr_flags = CISS_REQ_DATAIN; 1876 1877 cc = CISS_FIND_COMMAND(cr); 1878 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1879 cc->header.address.physical.bus = 0; 1880 cc->header.address.physical.target = 0; 1881 cc->cdb.cdb_length = sizeof(*cbc); 1882 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1883 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1884 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1885 cc->cdb.timeout = 0; 1886 1887 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1888 bzero(cbc, sizeof(*cbc)); 1889 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1890 cbc->bmic_opcode = opcode; 1891 cbc->size = htons((u_int16_t)bufsize); 1892 1893 out: 1894 if (error) { 1895 if (cr != NULL) 1896 ciss_release_request(cr); 1897 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1898 free(buf, CISS_MALLOC_CLASS); 1899 } else { 1900 *crp = cr; 1901 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1902 *bufp = buf; 1903 } 1904 return(error); 1905 } 1906 1907 /************************************************************************ 1908 * Handle a command passed in from userspace. 1909 */ 1910 static int 1911 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1912 { 1913 struct ciss_request *cr; 1914 struct ciss_command *cc; 1915 struct ciss_error_info *ce; 1916 int error; 1917 1918 debug_called(1); 1919 1920 cr = NULL; 1921 1922 /* 1923 * Get a request. 1924 */ 1925 if ((error = ciss_get_request(sc, &cr)) != 0) 1926 goto out; 1927 cc = CISS_FIND_COMMAND(cr); 1928 1929 /* 1930 * Allocate an in-kernel databuffer if required, copy in user data. 1931 */ 1932 cr->cr_length = ioc->buf_size; 1933 if (ioc->buf_size > 0) { 1934 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1935 error = ENOMEM; 1936 goto out; 1937 } 1938 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1939 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1940 goto out; 1941 } 1942 } 1943 1944 /* 1945 * Build the request based on the user command. 1946 */ 1947 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1948 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1949 1950 /* XXX anything else to populate here? */ 1951 1952 /* 1953 * Run the command. 1954 */ 1955 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1956 debug(0, "request failed - %d", error); 1957 goto out; 1958 } 1959 1960 /* 1961 * Copy the results back to the user. 1962 */ 1963 ce = (struct ciss_error_info *)&(cc->sg[0]); 1964 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1965 if ((ioc->buf_size > 0) && 1966 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1967 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1968 goto out; 1969 } 1970 1971 /* done OK */ 1972 error = 0; 1973 1974 out: 1975 if ((cr != NULL) && (cr->cr_data != NULL)) 1976 free(cr->cr_data, CISS_MALLOC_CLASS); 1977 if (cr != NULL) 1978 ciss_release_request(cr); 1979 return(error); 1980 } 1981 1982 /************************************************************************ 1983 * Map a request into bus-visible space, initialise the scatter/gather 1984 * list. 1985 */ 1986 static int 1987 ciss_map_request(struct ciss_request *cr) 1988 { 1989 struct ciss_softc *sc; 1990 1991 debug_called(2); 1992 1993 sc = cr->cr_sc; 1994 1995 /* check that mapping is necessary */ 1996 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1997 return(0); 1998 1999 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 2000 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 2001 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 2002 2003 if (cr->cr_flags & CISS_REQ_DATAIN) 2004 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2005 if (cr->cr_flags & CISS_REQ_DATAOUT) 2006 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2007 2008 cr->cr_flags |= CISS_REQ_MAPPED; 2009 return(0); 2010 } 2011 2012 static void 2013 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2014 { 2015 struct ciss_command *cc; 2016 int i; 2017 2018 debug_called(2); 2019 2020 cc = (struct ciss_command *)arg; 2021 for (i = 0; i < nseg; i++) { 2022 cc->sg[i].address = segs[i].ds_addr; 2023 cc->sg[i].length = segs[i].ds_len; 2024 cc->sg[i].extension = 0; 2025 } 2026 /* we leave the s/g table entirely within the command */ 2027 cc->header.sg_in_list = nseg; 2028 cc->header.sg_total = nseg; 2029 } 2030 2031 /************************************************************************ 2032 * Unmap a request from bus-visible space. 2033 */ 2034 static void 2035 ciss_unmap_request(struct ciss_request *cr) 2036 { 2037 struct ciss_softc *sc; 2038 2039 debug_called(2); 2040 2041 sc = cr->cr_sc; 2042 2043 /* check that unmapping is necessary */ 2044 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2045 return; 2046 2047 if (cr->cr_flags & CISS_REQ_DATAIN) 2048 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2049 if (cr->cr_flags & CISS_REQ_DATAOUT) 2050 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2051 2052 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2053 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2054 cr->cr_flags &= ~CISS_REQ_MAPPED; 2055 } 2056 2057 /************************************************************************ 2058 * Attach the driver to CAM. 2059 * 2060 * We put all the logical drives on a single SCSI bus. 2061 */ 2062 static int 2063 ciss_cam_init(struct ciss_softc *sc) 2064 { 2065 2066 debug_called(1); 2067 2068 /* 2069 * Allocate a devq. We can reuse this for the masked physical 2070 * devices if we decide to export these as well. 2071 */ 2072 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2073 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2074 return(ENOMEM); 2075 } 2076 2077 /* 2078 * Create a SIM. 2079 */ 2080 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2081 device_get_unit(sc->ciss_dev), 2082 sc->ciss_max_requests - 2, 2083 1, 2084 sc->ciss_cam_devq)) == NULL) { 2085 ciss_printf(sc, "can't allocate CAM SIM\n"); 2086 return(ENOMEM); 2087 } 2088 2089 /* 2090 * Register bus 0 (the 'logical drives' bus) with this SIM. 2091 */ 2092 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2093 ciss_printf(sc, "can't register SCSI bus 0\n"); 2094 return(ENXIO); 2095 } 2096 2097 /* 2098 * Initiate a rescan of the bus. 2099 */ 2100 ciss_cam_rescan_all(sc); 2101 2102 return(0); 2103 } 2104 2105 /************************************************************************ 2106 * Initiate a rescan of the 'logical devices' SIM 2107 */ 2108 static void 2109 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2110 { 2111 union ccb *ccb; 2112 2113 debug_called(1); 2114 2115 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2116 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2117 return; 2118 } 2119 2120 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2121 != CAM_REQ_CMP) { 2122 ciss_printf(sc, "rescan failed (can't create path)\n"); 2123 return; 2124 } 2125 2126 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2127 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2128 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2129 ccb->crcn.flags = CAM_FLAG_NONE; 2130 xpt_action(ccb); 2131 2132 /* scan is now in progress */ 2133 } 2134 2135 static void 2136 ciss_cam_rescan_all(struct ciss_softc *sc) 2137 { 2138 return(ciss_cam_rescan_target(sc, 0)); 2139 } 2140 2141 static void 2142 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2143 { 2144 xpt_free_path(ccb->ccb_h.path); 2145 free(ccb, M_TEMP); 2146 } 2147 2148 /************************************************************************ 2149 * Handle requests coming from CAM 2150 */ 2151 static void 2152 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2153 { 2154 struct ciss_softc *sc; 2155 struct ccb_scsiio *csio; 2156 int target; 2157 2158 sc = cam_sim_softc(sim); 2159 csio = (struct ccb_scsiio *)&ccb->csio; 2160 target = csio->ccb_h.target_id; 2161 2162 switch (ccb->ccb_h.func_code) { 2163 2164 /* perform SCSI I/O */ 2165 case XPT_SCSI_IO: 2166 if (!ciss_cam_action_io(sim, csio)) 2167 return; 2168 break; 2169 2170 /* perform geometry calculations */ 2171 case XPT_CALC_GEOMETRY: 2172 { 2173 struct ccb_calc_geometry *ccg = &ccb->ccg; 2174 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2175 2176 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2177 2178 /* 2179 * Use the cached geometry settings unless the fault tolerance 2180 * is invalid. 2181 */ 2182 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2183 u_int32_t secs_per_cylinder; 2184 2185 ccg->heads = 255; 2186 ccg->secs_per_track = 32; 2187 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2188 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2189 } else { 2190 ccg->heads = ld->cl_geometry.heads; 2191 ccg->secs_per_track = ld->cl_geometry.sectors; 2192 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2193 } 2194 ccb->ccb_h.status = CAM_REQ_CMP; 2195 break; 2196 } 2197 2198 /* handle path attribute inquiry */ 2199 case XPT_PATH_INQ: 2200 { 2201 struct ccb_pathinq *cpi = &ccb->cpi; 2202 2203 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2204 2205 cpi->version_num = 1; 2206 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2207 cpi->target_sprt = 0; 2208 cpi->hba_misc = 0; 2209 cpi->max_target = CISS_MAX_LOGICAL; 2210 cpi->max_lun = 0; /* 'logical drive' channel only */ 2211 cpi->initiator_id = CISS_MAX_LOGICAL; 2212 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2213 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2214 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2215 cpi->unit_number = cam_sim_unit(sim); 2216 cpi->bus_id = cam_sim_bus(sim); 2217 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2218 ccb->ccb_h.status = CAM_REQ_CMP; 2219 break; 2220 } 2221 2222 case XPT_GET_TRAN_SETTINGS: 2223 { 2224 struct ccb_trans_settings *cts = &ccb->cts; 2225 int bus, target; 2226 2227 bus = cam_sim_bus(sim); 2228 target = cts->ccb_h.target_id; 2229 2230 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2231 cts->valid = 0; 2232 2233 /* disconnect always OK */ 2234 cts->flags |= CCB_TRANS_DISC_ENB; 2235 cts->valid |= CCB_TRANS_DISC_VALID; 2236 2237 cts->ccb_h.status = CAM_REQ_CMP; 2238 break; 2239 } 2240 2241 default: /* we can't do this */ 2242 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2243 ccb->ccb_h.status = CAM_REQ_INVALID; 2244 break; 2245 } 2246 2247 xpt_done(ccb); 2248 } 2249 2250 /************************************************************************ 2251 * Handle a CAM SCSI I/O request. 2252 */ 2253 static int 2254 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2255 { 2256 struct ciss_softc *sc; 2257 int bus, target; 2258 struct ciss_request *cr; 2259 struct ciss_command *cc; 2260 int error; 2261 2262 sc = cam_sim_softc(sim); 2263 bus = cam_sim_bus(sim); 2264 target = csio->ccb_h.target_id; 2265 2266 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2267 2268 /* check for I/O attempt to nonexistent device */ 2269 if ((bus != 0) || 2270 (target > CISS_MAX_LOGICAL) || 2271 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2272 debug(3, " device does not exist"); 2273 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2274 } 2275 2276 /* firmware does not support commands > 10 bytes */ 2277 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2278 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2279 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2280 } 2281 2282 /* check that the CDB pointer is not to a physical address */ 2283 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2284 debug(3, " CDB pointer is to physical address"); 2285 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2286 } 2287 2288 /* if there is data transfer, it must be to/from a virtual address */ 2289 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2290 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2291 debug(3, " data pointer is to physical address"); 2292 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2293 } 2294 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2295 debug(3, " data has premature s/g setup"); 2296 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2297 } 2298 } 2299 2300 /* abandon aborted ccbs or those that have failed validation */ 2301 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2302 debug(3, "abandoning CCB due to abort/validation failure"); 2303 return(EINVAL); 2304 } 2305 2306 /* handle emulation of some SCSI commands ourself */ 2307 if (ciss_cam_emulate(sc, csio)) 2308 return(0); 2309 2310 /* 2311 * Get a request to manage this command. If we can't, return the 2312 * ccb, freeze the queue and flag so that we unfreeze it when a 2313 * request completes. 2314 */ 2315 if ((error = ciss_get_request(sc, &cr)) != 0) { 2316 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2317 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2318 return(error); 2319 } 2320 2321 /* 2322 * Build the command. 2323 */ 2324 cc = CISS_FIND_COMMAND(cr); 2325 cr->cr_data = csio->data_ptr; 2326 cr->cr_length = csio->dxfer_len; 2327 cr->cr_complete = ciss_cam_complete; 2328 cr->cr_private = csio; 2329 2330 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2331 cc->header.address.logical.lun = target; 2332 cc->cdb.cdb_length = csio->cdb_len; 2333 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2334 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2335 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2336 cr->cr_flags = CISS_REQ_DATAOUT; 2337 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2338 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2339 cr->cr_flags = CISS_REQ_DATAIN; 2340 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2341 } else { 2342 cr->cr_flags = 0; 2343 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2344 } 2345 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2346 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2347 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2348 } else { 2349 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2350 } 2351 2352 /* 2353 * Submit the request to the adapter. 2354 * 2355 * Note that this may fail if we're unable to map the request (and 2356 * if we ever learn a transport layer other than simple, may fail 2357 * if the adapter rejects the command). 2358 */ 2359 if ((error = ciss_start(cr)) != 0) { 2360 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2361 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2362 ciss_release_request(cr); 2363 return(error); 2364 } 2365 2366 return(0); 2367 } 2368 2369 /************************************************************************ 2370 * Emulate SCSI commands the adapter doesn't handle as we might like. 2371 */ 2372 static int 2373 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2374 { 2375 int target; 2376 u_int8_t opcode; 2377 2378 2379 target = csio->ccb_h.target_id; 2380 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2381 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2382 2383 /* 2384 * Handle requests for volumes that don't exist. A selection timeout 2385 * is slightly better than an illegal request. Other errors might be 2386 * better. 2387 */ 2388 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2389 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2390 xpt_done((union ccb *)csio); 2391 return(1); 2392 } 2393 2394 /* 2395 * Handle requests for volumes that exist but are offline. 2396 * 2397 * I/O operations should fail, everything else should work. 2398 */ 2399 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2400 switch(opcode) { 2401 case READ_6: 2402 case READ_10: 2403 case READ_12: 2404 case WRITE_6: 2405 case WRITE_10: 2406 case WRITE_12: 2407 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2408 xpt_done((union ccb *)csio); 2409 return(1); 2410 } 2411 } 2412 2413 2414 /* if we have to fake Synchronise Cache */ 2415 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2416 2417 /* 2418 * If this is a Synchronise Cache command, typically issued when 2419 * a device is closed, flush the adapter and complete now. 2420 */ 2421 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2422 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2423 ciss_flush_adapter(sc); 2424 csio->ccb_h.status = CAM_REQ_CMP; 2425 xpt_done((union ccb *)csio); 2426 return(1); 2427 } 2428 } 2429 2430 return(0); 2431 } 2432 2433 /************************************************************************ 2434 * Check for possibly-completed commands. 2435 */ 2436 static void 2437 ciss_cam_poll(struct cam_sim *sim) 2438 { 2439 struct ciss_softc *sc = cam_sim_softc(sim); 2440 2441 debug_called(2); 2442 2443 ciss_done(sc); 2444 } 2445 2446 /************************************************************************ 2447 * Handle completion of a command - pass results back through the CCB 2448 */ 2449 static void 2450 ciss_cam_complete(struct ciss_request *cr) 2451 { 2452 struct ciss_softc *sc; 2453 struct ciss_command *cc; 2454 struct ciss_error_info *ce; 2455 struct ccb_scsiio *csio; 2456 int scsi_status; 2457 int command_status; 2458 2459 debug_called(2); 2460 2461 sc = cr->cr_sc; 2462 cc = CISS_FIND_COMMAND(cr); 2463 ce = (struct ciss_error_info *)&(cc->sg[0]); 2464 csio = (struct ccb_scsiio *)cr->cr_private; 2465 2466 /* 2467 * Extract status values from request. 2468 */ 2469 ciss_report_request(cr, &command_status, &scsi_status); 2470 csio->scsi_status = scsi_status; 2471 2472 /* 2473 * Handle specific SCSI status values. 2474 */ 2475 switch(scsi_status) { 2476 /* no status due to adapter error */ 2477 case -1: 2478 debug(0, "adapter error"); 2479 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2480 break; 2481 2482 /* no status due to command completed OK */ 2483 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2484 debug(2, "SCSI_STATUS_OK"); 2485 csio->ccb_h.status = CAM_REQ_CMP; 2486 break; 2487 2488 /* check condition, sense data included */ 2489 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2490 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2491 ce->sense_length, ce->residual_count); 2492 bzero(&csio->sense_data, SSD_FULL_SIZE); 2493 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2494 csio->sense_len = ce->sense_length; 2495 csio->resid = ce->residual_count; 2496 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2497 #ifdef CISS_DEBUG 2498 { 2499 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2500 debug(0, "sense key %x", sns->flags & SSD_KEY); 2501 } 2502 #endif 2503 break; 2504 2505 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2506 debug(0, "SCSI_STATUS_BUSY"); 2507 csio->ccb_h.status = CAM_SCSI_BUSY; 2508 break; 2509 2510 default: 2511 debug(0, "unknown status 0x%x", csio->scsi_status); 2512 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2513 break; 2514 } 2515 2516 /* handle post-command fixup */ 2517 ciss_cam_complete_fixup(sc, csio); 2518 2519 /* tell CAM we're ready for more commands */ 2520 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2521 2522 xpt_done((union ccb *)csio); 2523 ciss_release_request(cr); 2524 } 2525 2526 /******************************************************************************** 2527 * Fix up the result of some commands here. 2528 */ 2529 static void 2530 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2531 { 2532 struct scsi_inquiry_data *inq; 2533 struct ciss_ldrive *cl; 2534 int target; 2535 2536 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2537 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2538 2539 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2540 target = csio->ccb_h.target_id; 2541 cl = &sc->ciss_logical[target]; 2542 2543 padstr(inq->vendor, "COMPAQ", 8); 2544 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2545 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2546 } 2547 } 2548 2549 2550 /******************************************************************************** 2551 * Find a peripheral attached at (target) 2552 */ 2553 static struct cam_periph * 2554 ciss_find_periph(struct ciss_softc *sc, int target) 2555 { 2556 struct cam_periph *periph; 2557 struct cam_path *path; 2558 int status; 2559 2560 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2561 if (status == CAM_REQ_CMP) { 2562 periph = cam_periph_find(path, NULL); 2563 xpt_free_path(path); 2564 } else { 2565 periph = NULL; 2566 } 2567 return(periph); 2568 } 2569 2570 /******************************************************************************** 2571 * Name the device at (target) 2572 * 2573 * XXX is this strictly correct? 2574 */ 2575 int 2576 ciss_name_device(struct ciss_softc *sc, int target) 2577 { 2578 struct cam_periph *periph; 2579 2580 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2581 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2582 return(0); 2583 } 2584 sc->ciss_logical[target].cl_name[0] = 0; 2585 return(ENOENT); 2586 } 2587 2588 /************************************************************************ 2589 * Periodic status monitoring. 2590 */ 2591 static void 2592 ciss_periodic(void *arg) 2593 { 2594 struct ciss_softc *sc; 2595 2596 debug_called(1); 2597 2598 sc = (struct ciss_softc *)arg; 2599 2600 /* 2601 * Check the adapter heartbeat. 2602 */ 2603 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2604 sc->ciss_heart_attack++; 2605 debug(0, "adapter heart attack in progress 0x%x/%d", 2606 sc->ciss_heartbeat, sc->ciss_heart_attack); 2607 if (sc->ciss_heart_attack == 3) { 2608 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2609 /* XXX should reset adapter here */ 2610 } 2611 } else { 2612 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2613 sc->ciss_heart_attack = 0; 2614 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2615 } 2616 2617 /* 2618 * If the notify event request has died for some reason, or has 2619 * not started yet, restart it. 2620 */ 2621 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2622 debug(0, "(re)starting Event Notify chain"); 2623 ciss_notify_event(sc); 2624 } 2625 2626 /* 2627 * Reschedule. 2628 */ 2629 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2630 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, 2631 ciss_periodic, sc); 2632 } 2633 2634 /************************************************************************ 2635 * Request a notification response from the adapter. 2636 * 2637 * If (cr) is NULL, this is the first request of the adapter, so 2638 * reset the adapter's message pointer and start with the oldest 2639 * message available. 2640 */ 2641 static void 2642 ciss_notify_event(struct ciss_softc *sc) 2643 { 2644 struct ciss_request *cr; 2645 struct ciss_command *cc; 2646 struct ciss_notify_cdb *cnc; 2647 int error; 2648 2649 debug_called(1); 2650 2651 cr = sc->ciss_periodic_notify; 2652 2653 /* get a request if we don't already have one */ 2654 if (cr == NULL) { 2655 if ((error = ciss_get_request(sc, &cr)) != 0) { 2656 debug(0, "can't get notify event request"); 2657 goto out; 2658 } 2659 sc->ciss_periodic_notify = cr; 2660 cr->cr_complete = ciss_notify_complete; 2661 debug(1, "acquired request %d", cr->cr_tag); 2662 } 2663 2664 /* 2665 * Get a databuffer if we don't already have one, note that the 2666 * adapter command wants a larger buffer than the actual 2667 * structure. 2668 */ 2669 if (cr->cr_data == NULL) { 2670 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2671 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2672 } 2673 2674 /* re-setup the request's command (since we never release it) XXX overkill*/ 2675 ciss_preen_command(cr); 2676 2677 /* (re)build the notify event command */ 2678 cc = CISS_FIND_COMMAND(cr); 2679 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2680 cc->header.address.physical.bus = 0; 2681 cc->header.address.physical.target = 0; 2682 2683 cc->cdb.cdb_length = sizeof(*cnc); 2684 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2685 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2686 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2687 cc->cdb.timeout = 0; /* no timeout, we hope */ 2688 2689 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2690 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2691 cnc->opcode = CISS_OPCODE_READ; 2692 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2693 cnc->timeout = 0; /* no timeout, we hope */ 2694 cnc->synchronous = 0; 2695 cnc->ordered = 0; 2696 cnc->seek_to_oldest = 0; 2697 cnc->new_only = 0; 2698 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2699 2700 /* submit the request */ 2701 error = ciss_start(cr); 2702 2703 out: 2704 if (error) { 2705 if (cr != NULL) { 2706 if (cr->cr_data != NULL) 2707 free(cr->cr_data, CISS_MALLOC_CLASS); 2708 ciss_release_request(cr); 2709 } 2710 sc->ciss_periodic_notify = NULL; 2711 debug(0, "can't submit notify event request"); 2712 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2713 } else { 2714 debug(1, "notify event submitted"); 2715 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2716 } 2717 } 2718 2719 static void 2720 ciss_notify_complete(struct ciss_request *cr) 2721 { 2722 struct ciss_command *cc; 2723 struct ciss_notify *cn; 2724 struct ciss_softc *sc; 2725 int scsi_status; 2726 int command_status; 2727 2728 debug_called(1); 2729 2730 cc = CISS_FIND_COMMAND(cr); 2731 cn = (struct ciss_notify *)cr->cr_data; 2732 sc = cr->cr_sc; 2733 2734 /* 2735 * Report request results, decode status. 2736 */ 2737 ciss_report_request(cr, &command_status, &scsi_status); 2738 2739 /* 2740 * Abort the chain on a fatal error. 2741 * 2742 * XXX which of these are actually errors? 2743 */ 2744 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2745 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2746 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2747 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2748 ciss_name_command_status(command_status)); 2749 ciss_release_request(cr); 2750 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2751 return; 2752 } 2753 2754 /* 2755 * If the adapter gave us a text message, print it. 2756 */ 2757 if (cn->message[0] != 0) 2758 ciss_printf(sc, "*** %.80s\n", cn->message); 2759 2760 debug(0, "notify event class %d subclass %d detail %d", 2761 cn->class, cn->subclass, cn->detail); 2762 2763 /* 2764 * If there's room, save the event for a user-level tool. 2765 */ 2766 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2767 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2768 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2769 } 2770 2771 /* 2772 * Some events are directly of interest to us. 2773 */ 2774 switch (cn->class) { 2775 case CISS_NOTIFY_LOGICAL: 2776 ciss_notify_logical(sc, cn); 2777 break; 2778 case CISS_NOTIFY_PHYSICAL: 2779 ciss_notify_physical(sc, cn); 2780 break; 2781 } 2782 2783 /* 2784 * If the response indicates that the notifier has been aborted, 2785 * release the notifier command. 2786 */ 2787 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2788 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2789 (cn->detail == 1)) { 2790 debug(0, "notifier exiting"); 2791 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2792 ciss_release_request(cr); 2793 sc->ciss_periodic_notify = NULL; 2794 wakeup(&sc->ciss_periodic_notify); 2795 } 2796 2797 /* 2798 * Send a new notify event command, if we're not aborting. 2799 */ 2800 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2801 ciss_notify_event(sc); 2802 } 2803 } 2804 2805 /************************************************************************ 2806 * Abort the Notify Event chain. 2807 * 2808 * Note that we can't just abort the command in progress; we have to 2809 * explicitly issue an Abort Notify Event command in order for the 2810 * adapter to clean up correctly. 2811 * 2812 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2813 * the chain will not restart itself. 2814 */ 2815 static int 2816 ciss_notify_abort(struct ciss_softc *sc) 2817 { 2818 struct ciss_request *cr; 2819 struct ciss_command *cc; 2820 struct ciss_notify_cdb *cnc; 2821 int error, command_status, scsi_status; 2822 2823 debug_called(1); 2824 2825 cr = NULL; 2826 error = 0; 2827 2828 /* verify that there's an outstanding command */ 2829 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2830 goto out; 2831 2832 /* get a command to issue the abort with */ 2833 if ((error = ciss_get_request(sc, &cr))) 2834 goto out; 2835 2836 /* get a buffer for the result */ 2837 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2838 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2839 2840 /* build the CDB */ 2841 cc = CISS_FIND_COMMAND(cr); 2842 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2843 cc->header.address.physical.bus = 0; 2844 cc->header.address.physical.target = 0; 2845 cc->cdb.cdb_length = sizeof(*cnc); 2846 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2847 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2848 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2849 cc->cdb.timeout = 0; /* no timeout, we hope */ 2850 2851 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2852 bzero(cnc, sizeof(*cnc)); 2853 cnc->opcode = CISS_OPCODE_WRITE; 2854 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2855 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2856 2857 ciss_print_request(cr); 2858 2859 /* 2860 * Submit the request and wait for it to complete. 2861 */ 2862 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2863 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2864 goto out; 2865 } 2866 2867 /* 2868 * Check response. 2869 */ 2870 ciss_report_request(cr, &command_status, &scsi_status); 2871 switch(command_status) { 2872 case CISS_CMD_STATUS_SUCCESS: 2873 break; 2874 case CISS_CMD_STATUS_INVALID_COMMAND: 2875 /* 2876 * Some older adapters don't support the CISS version of this 2877 * command. Fall back to using the BMIC version. 2878 */ 2879 error = ciss_notify_abort_bmic(sc); 2880 if (error != 0) 2881 goto out; 2882 break; 2883 2884 case CISS_CMD_STATUS_TARGET_STATUS: 2885 /* 2886 * This can happen if the adapter thinks there wasn't an outstanding 2887 * Notify Event command but we did. We clean up here. 2888 */ 2889 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2890 if (sc->ciss_periodic_notify != NULL) 2891 ciss_release_request(sc->ciss_periodic_notify); 2892 error = 0; 2893 goto out; 2894 } 2895 /* FALLTHROUGH */ 2896 2897 default: 2898 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2899 ciss_name_command_status(command_status)); 2900 error = EIO; 2901 goto out; 2902 } 2903 2904 /* 2905 * Sleep waiting for the notifier command to complete. Note 2906 * that if it doesn't, we may end up in a bad situation, since 2907 * the adapter may deliver it later. Also note that the adapter 2908 * requires the Notify Event command to be cancelled in order to 2909 * maintain internal bookkeeping. 2910 */ 2911 crit_enter(); 2912 while (sc->ciss_periodic_notify != NULL) { 2913 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2914 if (error == EWOULDBLOCK) { 2915 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2916 break; 2917 } 2918 } 2919 crit_exit(); 2920 2921 out: 2922 /* release the cancel request */ 2923 if (cr != NULL) { 2924 if (cr->cr_data != NULL) 2925 free(cr->cr_data, CISS_MALLOC_CLASS); 2926 ciss_release_request(cr); 2927 } 2928 if (error == 0) 2929 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2930 return(error); 2931 } 2932 2933 /************************************************************************ 2934 * Abort the Notify Event chain using a BMIC command. 2935 */ 2936 static int 2937 ciss_notify_abort_bmic(struct ciss_softc *sc) 2938 { 2939 struct ciss_request *cr; 2940 int error, command_status; 2941 2942 debug_called(1); 2943 2944 cr = NULL; 2945 error = 0; 2946 2947 /* verify that there's an outstanding command */ 2948 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2949 goto out; 2950 2951 /* 2952 * Build a BMIC command to cancel the Notify on Event command. 2953 * 2954 * Note that we are sending a CISS opcode here. Odd. 2955 */ 2956 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2957 NULL, 0)) != 0) 2958 goto out; 2959 2960 /* 2961 * Submit the request and wait for it to complete. 2962 */ 2963 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2964 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2965 goto out; 2966 } 2967 2968 /* 2969 * Check response. 2970 */ 2971 ciss_report_request(cr, &command_status, NULL); 2972 switch(command_status) { 2973 case CISS_CMD_STATUS_SUCCESS: 2974 break; 2975 default: 2976 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2977 ciss_name_command_status(command_status)); 2978 error = EIO; 2979 goto out; 2980 } 2981 2982 out: 2983 if (cr != NULL) 2984 ciss_release_request(cr); 2985 return(error); 2986 } 2987 2988 /************************************************************************ 2989 * Handle a notify event relating to the status of a logical drive. 2990 * 2991 * XXX need to be able to defer some of these to properly handle 2992 * calling the "ID Physical drive" command, unless the 'extended' 2993 * drive IDs are always in BIG_MAP format. 2994 */ 2995 static void 2996 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 2997 { 2998 struct ciss_ldrive *ld; 2999 int ostatus; 3000 3001 debug_called(2); 3002 3003 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3004 3005 switch (cn->subclass) { 3006 case CISS_NOTIFY_LOGICAL_STATUS: 3007 switch (cn->detail) { 3008 case 0: 3009 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3010 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3011 cn->data.logical_status.logical_drive, ld->cl_name, 3012 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3013 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3014 cn->data.logical_status.spare_state, 3015 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3016 3017 /* 3018 * Update our idea of the drive's status. 3019 */ 3020 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3021 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3022 if (ld->cl_lstatus != NULL) 3023 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3024 3025 #if 0 3026 /* 3027 * Have CAM rescan the drive if its status has changed. 3028 */ 3029 if (ostatus != ld->cl_status) 3030 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3031 #endif 3032 3033 break; 3034 3035 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3036 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3037 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3038 cn->data.logical_status.logical_drive, ld->cl_name); 3039 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3040 break; 3041 3042 case 2: 3043 case 3: 3044 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3045 cn->data.rebuild_aborted.logical_drive, 3046 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3047 (cn->detail == 2) ? "read" : "write"); 3048 break; 3049 } 3050 break; 3051 3052 case CISS_NOTIFY_LOGICAL_ERROR: 3053 if (cn->detail == 0) { 3054 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3055 cn->data.io_error.logical_drive, 3056 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3057 cn->data.io_error.failure_bus, 3058 cn->data.io_error.failure_drive); 3059 /* XXX should we take the drive down at this point, or will we be told? */ 3060 } 3061 break; 3062 3063 case CISS_NOTIFY_LOGICAL_SURFACE: 3064 if (cn->detail == 0) 3065 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3066 cn->data.consistency_completed.logical_drive, 3067 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3068 break; 3069 } 3070 } 3071 3072 /************************************************************************ 3073 * Handle a notify event relating to the status of a physical drive. 3074 */ 3075 static void 3076 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3077 { 3078 3079 } 3080 3081 /************************************************************************ 3082 * Print a request. 3083 */ 3084 static void 3085 ciss_print_request(struct ciss_request *cr) 3086 { 3087 struct ciss_softc *sc; 3088 struct ciss_command *cc; 3089 int i; 3090 3091 sc = cr->cr_sc; 3092 cc = CISS_FIND_COMMAND(cr); 3093 3094 ciss_printf(sc, "REQUEST @ %p\n", cr); 3095 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3096 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3097 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3098 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3099 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3100 switch(cc->header.address.mode.mode) { 3101 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3102 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3103 ciss_printf(sc, " physical bus %d target %d\n", 3104 cc->header.address.physical.bus, cc->header.address.physical.target); 3105 break; 3106 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3107 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3108 break; 3109 } 3110 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3111 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3112 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3113 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3114 cc->cdb.cdb_length, 3115 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3116 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3117 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3118 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3119 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3120 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3121 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3122 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3123 3124 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3125 /* XXX print error info */ 3126 } else { 3127 /* since we don't use chained s/g, don't support it here */ 3128 for (i = 0; i < cc->header.sg_in_list; i++) { 3129 if ((i % 4) == 0) 3130 ciss_printf(sc, " "); 3131 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3132 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3133 printf("\n"); 3134 } 3135 } 3136 } 3137 3138 /************************************************************************ 3139 * Print information about the status of a logical drive. 3140 */ 3141 static void 3142 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3143 { 3144 int bus, target, i; 3145 3146 if (ld->cl_lstatus == NULL) { 3147 printf("does not exist\n"); 3148 return; 3149 } 3150 3151 /* print drive status */ 3152 switch(ld->cl_lstatus->status) { 3153 case CISS_LSTATUS_OK: 3154 printf("online\n"); 3155 break; 3156 case CISS_LSTATUS_INTERIM_RECOVERY: 3157 printf("in interim recovery mode\n"); 3158 break; 3159 case CISS_LSTATUS_READY_RECOVERY: 3160 printf("ready to begin recovery\n"); 3161 break; 3162 case CISS_LSTATUS_RECOVERING: 3163 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3164 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3165 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3166 bus, target, ld->cl_lstatus->blocks_to_recover); 3167 break; 3168 case CISS_LSTATUS_EXPANDING: 3169 printf("being expanded, %u blocks remaining\n", 3170 ld->cl_lstatus->blocks_to_recover); 3171 break; 3172 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3173 printf("queued for expansion\n"); 3174 break; 3175 case CISS_LSTATUS_FAILED: 3176 printf("queued for expansion\n"); 3177 break; 3178 case CISS_LSTATUS_WRONG_PDRIVE: 3179 printf("wrong physical drive inserted\n"); 3180 break; 3181 case CISS_LSTATUS_MISSING_PDRIVE: 3182 printf("missing a needed physical drive\n"); 3183 break; 3184 case CISS_LSTATUS_BECOMING_READY: 3185 printf("becoming ready\n"); 3186 break; 3187 } 3188 3189 /* print failed physical drives */ 3190 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3191 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3192 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3193 if (bus == -1) 3194 continue; 3195 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3196 ld->cl_lstatus->drive_failure_map[i]); 3197 } 3198 } 3199 3200 #ifdef CISS_DEBUG 3201 /************************************************************************ 3202 * Print information about the controller/driver. 3203 */ 3204 static void 3205 ciss_print_adapter(struct ciss_softc *sc) 3206 { 3207 int i; 3208 3209 ciss_printf(sc, "ADAPTER:\n"); 3210 for (i = 0; i < CISSQ_COUNT; i++) { 3211 ciss_printf(sc, "%s %d/%d\n", 3212 i == 0 ? "free" : 3213 i == 1 ? "busy" : "complete", 3214 sc->ciss_qstat[i].q_length, 3215 sc->ciss_qstat[i].q_max); 3216 } 3217 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3218 ciss_printf(sc, "notify_head/tail %d/%d\n", 3219 sc->ciss_notify_head, sc->ciss_notify_tail); 3220 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3221 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3222 3223 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3224 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3225 ciss_print_ldrive(sc, sc->ciss_logical + i); 3226 } 3227 3228 for (i = 1; i < sc->ciss_max_requests; i++) 3229 ciss_print_request(sc->ciss_request + i); 3230 3231 } 3232 3233 void ciss_print0(void); 3234 3235 /* DDB hook */ 3236 void 3237 ciss_print0(void) 3238 { 3239 struct ciss_softc *sc; 3240 3241 sc = devclass_get_softc(devclass_find("ciss"), 0); 3242 if (sc == NULL) { 3243 printf("no ciss controllers\n"); 3244 } else { 3245 ciss_print_adapter(sc); 3246 } 3247 } 3248 #endif 3249 3250 /************************************************************************ 3251 * Return a name for a logical drive status value. 3252 */ 3253 static const char * 3254 ciss_name_ldrive_status(int status) 3255 { 3256 switch (status) { 3257 case CISS_LSTATUS_OK: 3258 return("OK"); 3259 case CISS_LSTATUS_FAILED: 3260 return("failed"); 3261 case CISS_LSTATUS_NOT_CONFIGURED: 3262 return("not configured"); 3263 case CISS_LSTATUS_INTERIM_RECOVERY: 3264 return("interim recovery"); 3265 case CISS_LSTATUS_READY_RECOVERY: 3266 return("ready for recovery"); 3267 case CISS_LSTATUS_RECOVERING: 3268 return("recovering"); 3269 case CISS_LSTATUS_WRONG_PDRIVE: 3270 return("wrong physical drive inserted"); 3271 case CISS_LSTATUS_MISSING_PDRIVE: 3272 return("missing physical drive"); 3273 case CISS_LSTATUS_EXPANDING: 3274 return("expanding"); 3275 case CISS_LSTATUS_BECOMING_READY: 3276 return("becoming ready"); 3277 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3278 return("queued for expansion"); 3279 } 3280 return("unknown status"); 3281 } 3282 3283 /************************************************************************ 3284 * Return an online/offline/nonexistent value for a logical drive 3285 * status value. 3286 */ 3287 static int 3288 ciss_decode_ldrive_status(int status) 3289 { 3290 switch(status) { 3291 case CISS_LSTATUS_NOT_CONFIGURED: 3292 return(CISS_LD_NONEXISTENT); 3293 3294 case CISS_LSTATUS_OK: 3295 case CISS_LSTATUS_INTERIM_RECOVERY: 3296 case CISS_LSTATUS_READY_RECOVERY: 3297 case CISS_LSTATUS_RECOVERING: 3298 case CISS_LSTATUS_EXPANDING: 3299 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3300 return(CISS_LD_ONLINE); 3301 3302 case CISS_LSTATUS_FAILED: 3303 case CISS_LSTATUS_WRONG_PDRIVE: 3304 case CISS_LSTATUS_MISSING_PDRIVE: 3305 case CISS_LSTATUS_BECOMING_READY: 3306 default: 3307 return(CISS_LD_OFFLINE); 3308 } 3309 } 3310 3311 3312 /************************************************************************ 3313 * Return a name for a logical drive's organisation. 3314 */ 3315 static const char * 3316 ciss_name_ldrive_org(int org) 3317 { 3318 switch(org) { 3319 case CISS_LDRIVE_RAID0: 3320 return("RAID 0"); 3321 case CISS_LDRIVE_RAID1: 3322 return("RAID 1"); 3323 case CISS_LDRIVE_RAID4: 3324 return("RAID 4"); 3325 case CISS_LDRIVE_RAID5: 3326 return("RAID 5"); 3327 } 3328 return("unkown"); 3329 } 3330 3331 /************************************************************************ 3332 * Return a name for a command status value. 3333 */ 3334 static const char * 3335 ciss_name_command_status(int status) 3336 { 3337 switch(status) { 3338 case CISS_CMD_STATUS_SUCCESS: 3339 return("success"); 3340 case CISS_CMD_STATUS_TARGET_STATUS: 3341 return("target status"); 3342 case CISS_CMD_STATUS_DATA_UNDERRUN: 3343 return("data underrun"); 3344 case CISS_CMD_STATUS_DATA_OVERRUN: 3345 return("data overrun"); 3346 case CISS_CMD_STATUS_INVALID_COMMAND: 3347 return("invalid command"); 3348 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3349 return("protocol error"); 3350 case CISS_CMD_STATUS_HARDWARE_ERROR: 3351 return("hardware error"); 3352 case CISS_CMD_STATUS_CONNECTION_LOST: 3353 return("connection lost"); 3354 case CISS_CMD_STATUS_ABORTED: 3355 return("aborted"); 3356 case CISS_CMD_STATUS_ABORT_FAILED: 3357 return("abort failed"); 3358 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3359 return("unsolicited abort"); 3360 case CISS_CMD_STATUS_TIMEOUT: 3361 return("timeout"); 3362 case CISS_CMD_STATUS_UNABORTABLE: 3363 return("unabortable"); 3364 } 3365 return("unknown status"); 3366 } 3367 3368 /************************************************************************ 3369 * Handle an open on the control device. 3370 */ 3371 static int 3372 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3373 { 3374 struct ciss_softc *sc; 3375 3376 debug_called(1); 3377 3378 sc = (struct ciss_softc *)dev->si_drv1; 3379 3380 /* we might want to veto if someone already has us open */ 3381 3382 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3383 return(0); 3384 } 3385 3386 /************************************************************************ 3387 * Handle the last close on the control device. 3388 */ 3389 static int 3390 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3391 { 3392 struct ciss_softc *sc; 3393 3394 debug_called(1); 3395 3396 sc = (struct ciss_softc *)dev->si_drv1; 3397 3398 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3399 return (0); 3400 } 3401 3402 /******************************************************************************** 3403 * Handle adapter-specific control operations. 3404 * 3405 * Note that the API here is compatible with the Linux driver, in order to 3406 * simplify the porting of Compaq's userland tools. 3407 */ 3408 static int 3409 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3410 { 3411 struct ciss_softc *sc; 3412 int error; 3413 3414 debug_called(1); 3415 3416 sc = (struct ciss_softc *)dev->si_drv1; 3417 error = 0; 3418 3419 switch(cmd) { 3420 case CCISS_GETPCIINFO: 3421 { 3422 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3423 3424 pis->bus = pci_get_bus(sc->ciss_dev); 3425 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3426 pis->board_id = pci_get_devid(sc->ciss_dev); 3427 3428 break; 3429 } 3430 3431 case CCISS_GETINTINFO: 3432 { 3433 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3434 3435 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3436 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3437 3438 break; 3439 } 3440 3441 case CCISS_SETINTINFO: 3442 { 3443 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3444 3445 if ((cis->delay == 0) && (cis->count == 0)) { 3446 error = EINVAL; 3447 break; 3448 } 3449 3450 /* 3451 * XXX apparently this is only safe if the controller is idle, 3452 * we should suspend it before doing this. 3453 */ 3454 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3455 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3456 3457 if (ciss_update_config(sc)) 3458 error = EIO; 3459 3460 /* XXX resume the controller here */ 3461 break; 3462 } 3463 3464 case CCISS_GETNODENAME: 3465 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3466 sizeof(NodeName_type)); 3467 break; 3468 3469 case CCISS_SETNODENAME: 3470 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3471 sizeof(NodeName_type)); 3472 if (ciss_update_config(sc)) 3473 error = EIO; 3474 break; 3475 3476 case CCISS_GETHEARTBEAT: 3477 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3478 break; 3479 3480 case CCISS_GETBUSTYPES: 3481 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3482 break; 3483 3484 case CCISS_GETFIRMVER: 3485 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3486 sizeof(FirmwareVer_type)); 3487 break; 3488 3489 case CCISS_GETDRIVERVER: 3490 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3491 break; 3492 3493 case CCISS_REVALIDVOLS: 3494 /* 3495 * This is a bit ugly; to do it "right" we really need 3496 * to find any disks that have changed, kick CAM off them, 3497 * then rescan only these disks. It'd be nice if they 3498 * a) told us which disk(s) they were going to play with, 3499 * and b) which ones had arrived. 8( 3500 */ 3501 break; 3502 3503 case CCISS_PASSTHRU: 3504 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3505 break; 3506 3507 default: 3508 debug(0, "unknown ioctl 0x%lx", cmd); 3509 3510 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3511 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3512 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3513 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3514 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3515 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3516 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3517 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3518 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3519 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3520 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3521 3522 error = ENOIOCTL; 3523 break; 3524 } 3525 3526 return(error); 3527 } 3528