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 1.13 2005/04/25 07:05:55 joerg Exp $ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 */ 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/malloc.h> 75 #include <sys/kernel.h> 76 #include <sys/bus.h> 77 #include <sys/conf.h> 78 #include <sys/devicestat.h> 79 #include <sys/stat.h> 80 81 #include <bus/cam/cam.h> 82 #include <bus/cam/cam_ccb.h> 83 #include <bus/cam/cam_periph.h> 84 #include <bus/cam/cam_sim.h> 85 #include <bus/cam/cam_xpt_sim.h> 86 #include <bus/cam/scsi/scsi_all.h> 87 #include <bus/cam/scsi/scsi_message.h> 88 89 #include <machine/clock.h> 90 #include <machine/bus_memio.h> 91 #include <machine/bus.h> 92 #include <machine/endian.h> 93 #include <machine/resource.h> 94 #include <sys/rman.h> 95 96 #include <bus/pci/pcireg.h> 97 #include <bus/pci/pcivar.h> 98 99 #include "cissreg.h" 100 #include "cissvar.h" 101 #include "cissio.h" 102 103 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 104 105 /* pci interface */ 106 static int ciss_lookup(device_t dev); 107 static int ciss_probe(device_t dev); 108 static int ciss_attach(device_t dev); 109 static int ciss_detach(device_t dev); 110 static int ciss_shutdown(device_t dev); 111 112 /* (de)initialisation functions, control wrappers */ 113 static int ciss_init_pci(struct ciss_softc *sc); 114 static int ciss_wait_adapter(struct ciss_softc *sc); 115 static int ciss_flush_adapter(struct ciss_softc *sc); 116 static int ciss_init_requests(struct ciss_softc *sc); 117 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 118 int nseg, int error); 119 static int ciss_identify_adapter(struct ciss_softc *sc); 120 static int ciss_init_logical(struct ciss_softc *sc); 121 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 122 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 123 static int ciss_update_config(struct ciss_softc *sc); 124 static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async); 125 static void ciss_accept_media_complete(struct ciss_request *cr); 126 static void ciss_free(struct ciss_softc *sc); 127 128 /* request submission/completion */ 129 static int ciss_start(struct ciss_request *cr); 130 static void ciss_done(struct ciss_softc *sc); 131 static void ciss_intr(void *arg); 132 static void ciss_complete(struct ciss_softc *sc); 133 static int ciss_report_request(struct ciss_request *cr, int *command_status, 134 int *scsi_status); 135 static int ciss_synch_request(struct ciss_request *cr, int timeout); 136 static int ciss_poll_request(struct ciss_request *cr, int timeout); 137 static int ciss_wait_request(struct ciss_request *cr, int timeout); 138 #if 0 139 static int ciss_abort_request(struct ciss_request *cr); 140 #endif 141 142 /* request queueing */ 143 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 144 static void ciss_preen_command(struct ciss_request *cr); 145 static void ciss_release_request(struct ciss_request *cr); 146 147 /* request helpers */ 148 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 149 int opcode, void **bufp, size_t bufsize); 150 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 151 152 /* DMA map/unmap */ 153 static int ciss_map_request(struct ciss_request *cr); 154 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 155 int nseg, int error); 156 static void ciss_unmap_request(struct ciss_request *cr); 157 158 /* CAM interface */ 159 static int ciss_cam_init(struct ciss_softc *sc); 160 static void ciss_cam_rescan_target(struct ciss_softc *sc, int target); 161 static void ciss_cam_rescan_all(struct ciss_softc *sc); 162 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 163 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 164 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 165 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 166 static void ciss_cam_poll(struct cam_sim *sim); 167 static void ciss_cam_complete(struct ciss_request *cr); 168 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 169 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target); 170 static int ciss_name_device(struct ciss_softc *sc, int target); 171 172 /* periodic status monitoring */ 173 static void ciss_periodic(void *arg); 174 static void ciss_notify_event(struct ciss_softc *sc); 175 static void ciss_notify_complete(struct ciss_request *cr); 176 static int ciss_notify_abort(struct ciss_softc *sc); 177 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 178 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 179 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 180 181 /* debugging output */ 182 static void ciss_print_request(struct ciss_request *cr); 183 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 184 static const char *ciss_name_ldrive_status(int status); 185 static int ciss_decode_ldrive_status(int status); 186 static const char *ciss_name_ldrive_org(int org); 187 static const char *ciss_name_command_status(int status); 188 189 /* 190 * PCI bus interface. 191 */ 192 static device_method_t ciss_methods[] = { 193 /* Device interface */ 194 DEVMETHOD(device_probe, ciss_probe), 195 DEVMETHOD(device_attach, ciss_attach), 196 DEVMETHOD(device_detach, ciss_detach), 197 DEVMETHOD(device_shutdown, ciss_shutdown), 198 { 0, 0 } 199 }; 200 201 static driver_t ciss_pci_driver = { 202 "ciss", 203 ciss_methods, 204 sizeof(struct ciss_softc) 205 }; 206 207 static devclass_t ciss_devclass; 208 209 DECLARE_DUMMY_MODULE(ciss); 210 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 211 212 /* 213 * Control device interface. 214 */ 215 static d_open_t ciss_open; 216 static d_close_t ciss_close; 217 static d_ioctl_t ciss_ioctl; 218 219 #define CISS_CDEV_MAJOR 166 220 221 static struct cdevsw ciss_cdevsw = { 222 /* name */ "ciss", 223 /* cmaj */ CISS_CDEV_MAJOR, 224 /* flags */ 0, 225 /* port */ NULL, 226 /* clone */ NULL, 227 ciss_open, ciss_close, noread, nowrite, ciss_ioctl, 228 nopoll, nommap, nostrategy, 229 nodump, nopsize, nokqfilter 230 }; 231 232 /************************************************************************ 233 * CISS adapters amazingly don't have a defined programming interface 234 * value. (One could say some very despairing things about PCI and 235 * people just not getting the general idea.) So we are forced to 236 * stick with matching against subvendor/subdevice, and thus have to 237 * be updated for every new CISS adapter that appears. 238 */ 239 #define CISS_BOARD_SA5 (1<<0) 240 #define CISS_BOARD_SA5B (1<<1) 241 242 static struct 243 { 244 u_int16_t subvendor; 245 u_int16_t subdevice; 246 int flags; 247 char *desc; 248 } ciss_vendor_data[] = { 249 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 250 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 251 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 252 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 253 { 0x0e11, 0x409A, CISS_BOARD_SA5B, "HP Smart Array 641" }, 254 { 0x0e11, 0x409B, CISS_BOARD_SA5B, "HP Smart Array 642" }, 255 { 0x0e11, 0x409C, CISS_BOARD_SA5B, "HP Smart Array 6400" }, 256 { 0, 0, 0, NULL } 257 }; 258 259 /************************************************************************ 260 * Find a match for the device in our list of known adapters. 261 */ 262 static int 263 ciss_lookup(device_t dev) 264 { 265 int i; 266 267 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 268 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 269 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 270 return(i); 271 } 272 return(-1); 273 } 274 275 /************************************************************************ 276 * Match a known CISS adapter. 277 */ 278 static int 279 ciss_probe(device_t dev) 280 { 281 int i; 282 283 i = ciss_lookup(dev); 284 if (i != -1) { 285 device_set_desc(dev, ciss_vendor_data[i].desc); 286 return(-10); 287 } 288 return(ENOENT); 289 } 290 291 /************************************************************************ 292 * Attach the driver to this adapter. 293 */ 294 static int 295 ciss_attach(device_t dev) 296 { 297 struct ciss_softc *sc; 298 int i, error; 299 300 debug_called(1); 301 302 #ifdef CISS_DEBUG 303 /* print structure/union sizes */ 304 debug_struct(ciss_command); 305 debug_struct(ciss_header); 306 debug_union(ciss_device_address); 307 debug_struct(ciss_cdb); 308 debug_struct(ciss_report_cdb); 309 debug_struct(ciss_notify_cdb); 310 debug_struct(ciss_notify); 311 debug_struct(ciss_message_cdb); 312 debug_struct(ciss_error_info_pointer); 313 debug_struct(ciss_error_info); 314 debug_struct(ciss_sg_entry); 315 debug_struct(ciss_config_table); 316 debug_struct(ciss_bmic_cdb); 317 debug_struct(ciss_bmic_id_ldrive); 318 debug_struct(ciss_bmic_id_lstatus); 319 debug_struct(ciss_bmic_id_table); 320 debug_struct(ciss_bmic_id_pdrive); 321 debug_struct(ciss_bmic_blink_pdrive); 322 debug_struct(ciss_bmic_flush_cache); 323 debug_const(CISS_MAX_REQUESTS); 324 debug_const(CISS_MAX_LOGICAL); 325 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 326 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 327 debug_const(CISS_COMMAND_ALLOC_SIZE); 328 debug_const(CISS_COMMAND_SG_LENGTH); 329 330 debug_type(cciss_pci_info_struct); 331 debug_type(cciss_coalint_struct); 332 debug_type(cciss_coalint_struct); 333 debug_type(NodeName_type); 334 debug_type(NodeName_type); 335 debug_type(Heartbeat_type); 336 debug_type(BusTypes_type); 337 debug_type(FirmwareVer_type); 338 debug_type(DriverVer_type); 339 debug_type(IOCTL_Command_struct); 340 #endif 341 342 sc = device_get_softc(dev); 343 sc->ciss_dev = dev; 344 callout_init(&sc->ciss_periodic); 345 346 /* 347 * Work out adapter type. 348 */ 349 i = ciss_lookup(dev); 350 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 351 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 352 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 353 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 354 } else { 355 /* really an error on our part */ 356 ciss_printf(sc, "unable to determine hardware type\n"); 357 error = ENXIO; 358 goto out; 359 } 360 361 /* 362 * Do PCI-specific init. 363 */ 364 if ((error = ciss_init_pci(sc)) != 0) 365 goto out; 366 367 /* 368 * Initialise driver queues. 369 */ 370 ciss_initq_free(sc); 371 ciss_initq_busy(sc); 372 ciss_initq_complete(sc); 373 374 /* 375 * Initialise command/request pool. 376 */ 377 if ((error = ciss_init_requests(sc)) != 0) 378 goto out; 379 380 /* 381 * Get adapter information. 382 */ 383 if ((error = ciss_identify_adapter(sc)) != 0) 384 goto out; 385 386 /* 387 * Build our private table of logical devices. 388 */ 389 if ((error = ciss_init_logical(sc)) != 0) 390 goto out; 391 392 /* 393 * Enable interrupts so that the CAM scan can complete. 394 */ 395 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 396 397 /* 398 * Initialise the CAM interface. 399 */ 400 if ((error = ciss_cam_init(sc)) != 0) 401 goto out; 402 403 /* 404 * Start the heartbeat routine and event chain. 405 */ 406 ciss_periodic(sc); 407 408 /* 409 * Create the control device. 410 */ 411 cdevsw_add(&ciss_cdevsw, -1, device_get_unit(sc->ciss_dev)); 412 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 413 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 414 "ciss%d", device_get_unit(sc->ciss_dev)); 415 sc->ciss_dev_t->si_drv1 = sc; 416 417 /* 418 * The adapter is running; synchronous commands can now sleep 419 * waiting for an interrupt to signal completion. 420 */ 421 sc->ciss_flags |= CISS_FLAG_RUNNING; 422 423 error = 0; 424 out: 425 if (error != 0) 426 ciss_free(sc); 427 return(error); 428 } 429 430 /************************************************************************ 431 * Detach the driver from this adapter. 432 */ 433 static int 434 ciss_detach(device_t dev) 435 { 436 struct ciss_softc *sc = device_get_softc(dev); 437 438 debug_called(1); 439 440 /* flush adapter cache */ 441 ciss_flush_adapter(sc); 442 443 /* release all resources */ 444 ciss_free(sc); 445 446 return(0); 447 448 } 449 450 /************************************************************************ 451 * Prepare adapter for system shutdown. 452 */ 453 static int 454 ciss_shutdown(device_t dev) 455 { 456 struct ciss_softc *sc = device_get_softc(dev); 457 458 debug_called(1); 459 460 /* flush adapter cache */ 461 ciss_flush_adapter(sc); 462 463 return(0); 464 } 465 466 /************************************************************************ 467 * Perform PCI-specific attachment actions. 468 */ 469 static int 470 ciss_init_pci(struct ciss_softc *sc) 471 { 472 uintptr_t cbase, csize, cofs; 473 int error; 474 475 debug_called(1); 476 477 /* 478 * Allocate register window first (we need this to find the config 479 * struct). 480 */ 481 error = ENXIO; 482 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 483 if ((sc->ciss_regs_resource = 484 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 485 0, ~0, 1, RF_ACTIVE)) == NULL) { 486 ciss_printf(sc, "can't allocate register window\n"); 487 return(ENXIO); 488 } 489 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 490 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 491 492 /* 493 * Find the BAR holding the config structure. If it's not the one 494 * we already mapped for registers, map it too. 495 */ 496 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 497 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 498 if ((sc->ciss_cfg_resource = 499 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 500 0, ~0, 1, RF_ACTIVE)) == NULL) { 501 ciss_printf(sc, "can't allocate config window\n"); 502 return(ENXIO); 503 } 504 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 505 csize = rman_get_end(sc->ciss_cfg_resource) - 506 rman_get_start(sc->ciss_cfg_resource) + 1; 507 } else { 508 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 509 csize = rman_get_end(sc->ciss_regs_resource) - 510 rman_get_start(sc->ciss_regs_resource) + 1; 511 } 512 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 513 514 /* 515 * Use the base/size/offset values we just calculated to 516 * sanity-check the config structure. If it's OK, point to it. 517 */ 518 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 519 ciss_printf(sc, "config table outside window\n"); 520 return(ENXIO); 521 } 522 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 523 debug(1, "config struct at %p", sc->ciss_cfg); 524 525 /* 526 * Validate the config structure. If we supported other transport 527 * methods, we could select amongst them at this point in time. 528 */ 529 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 530 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 531 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 532 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 533 return(ENXIO); 534 } 535 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 536 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 537 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 538 sc->ciss_cfg->valence); 539 return(ENXIO); 540 } 541 542 /* 543 * Put the board into simple mode, and tell it we're using the low 544 * 4GB of RAM. Set the default interrupt coalescing options. 545 */ 546 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 547 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 548 return(ENXIO); 549 } 550 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 551 sc->ciss_cfg->command_physlimit = 0; 552 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 553 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 554 555 if (ciss_update_config(sc)) { 556 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 557 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 558 return(ENXIO); 559 } 560 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 561 ciss_printf(sc, 562 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 563 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 564 return(ENXIO); 565 } 566 567 /* 568 * Wait for the adapter to come ready. 569 */ 570 if ((error = ciss_wait_adapter(sc)) != 0) 571 return(error); 572 573 /* 574 * Turn off interrupts before we go routing anything. 575 */ 576 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 577 578 /* 579 * Allocate and set up our interrupt. 580 */ 581 sc->ciss_irq_rid = 0; 582 if ((sc->ciss_irq_resource = 583 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 584 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 585 ciss_printf(sc, "can't allocate interrupt\n"); 586 return(ENXIO); 587 } 588 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc, 589 &sc->ciss_intr)) { 590 ciss_printf(sc, "can't set up interrupt\n"); 591 return(ENXIO); 592 } 593 594 /* 595 * Allocate the parent bus DMA tag appropriate for our PCI 596 * interface. 597 * 598 * Note that "simple" adapters can only address within a 32-bit 599 * span. 600 */ 601 if (bus_dma_tag_create(NULL, /* parent */ 602 1, 0, /* alignment, boundary */ 603 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 604 BUS_SPACE_MAXADDR, /* highaddr */ 605 NULL, NULL, /* filter, filterarg */ 606 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 607 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 608 BUS_DMA_ALLOCNOW, /* flags */ 609 &sc->ciss_parent_dmat)) { 610 ciss_printf(sc, "can't allocate parent DMA tag\n"); 611 return(ENOMEM); 612 } 613 614 /* 615 * Create DMA tag for mapping buffers into adapter-addressable 616 * space. 617 */ 618 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 619 1, 0, /* alignment, boundary */ 620 BUS_SPACE_MAXADDR, /* lowaddr */ 621 BUS_SPACE_MAXADDR, /* highaddr */ 622 NULL, NULL, /* filter, filterarg */ 623 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 624 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 625 0, /* flags */ 626 &sc->ciss_buffer_dmat)) { 627 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 628 return(ENOMEM); 629 } 630 return(0); 631 } 632 633 /************************************************************************ 634 * Wait for the adapter to come ready. 635 */ 636 static int 637 ciss_wait_adapter(struct ciss_softc *sc) 638 { 639 int i; 640 641 debug_called(1); 642 643 /* 644 * Wait for the adapter to come ready. 645 */ 646 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 647 ciss_printf(sc, "waiting for adapter to come ready...\n"); 648 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 649 DELAY(1000000); /* one second */ 650 if (i > 30) { 651 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 652 return(EIO); 653 } 654 } 655 } 656 return(0); 657 } 658 659 /************************************************************************ 660 * Flush the adapter cache. 661 */ 662 static int 663 ciss_flush_adapter(struct ciss_softc *sc) 664 { 665 struct ciss_request *cr; 666 struct ciss_bmic_flush_cache *cbfc; 667 int error, command_status; 668 669 debug_called(1); 670 671 cr = NULL; 672 cbfc = NULL; 673 674 /* 675 * Build a BMIC request to flush the cache. We don't disable 676 * it, as we may be going to do more I/O (eg. we are emulating 677 * the Synchronise Cache command). 678 */ 679 cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 680 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 681 (void **)&cbfc, sizeof(*cbfc))) != 0) 682 goto out; 683 684 /* 685 * Submit the request and wait for it to complete. 686 */ 687 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 688 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 689 goto out; 690 } 691 692 /* 693 * Check response. 694 */ 695 ciss_report_request(cr, &command_status, NULL); 696 switch(command_status) { 697 case CISS_CMD_STATUS_SUCCESS: 698 break; 699 default: 700 ciss_printf(sc, "error flushing cache (%s)\n", 701 ciss_name_command_status(command_status)); 702 error = EIO; 703 goto out; 704 } 705 706 out: 707 if (cbfc != NULL) 708 free(cbfc, CISS_MALLOC_CLASS); 709 if (cr != NULL) 710 ciss_release_request(cr); 711 return(error); 712 } 713 714 /************************************************************************ 715 * Allocate memory for the adapter command structures, initialise 716 * the request structures. 717 * 718 * Note that the entire set of commands are allocated in a single 719 * contiguous slab. 720 */ 721 static int 722 ciss_init_requests(struct ciss_softc *sc) 723 { 724 struct ciss_request *cr; 725 int i; 726 727 debug_called(1); 728 729 /* 730 * Calculate the number of request structures/commands we are 731 * going to provide for this adapter. 732 */ 733 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 734 735 if (1/*bootverbose*/) 736 ciss_printf(sc, "using %d of %d available commands\n", 737 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 738 739 /* 740 * Create the DMA tag for commands. 741 */ 742 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 743 1, 0, /* alignment, boundary */ 744 BUS_SPACE_MAXADDR, /* lowaddr */ 745 BUS_SPACE_MAXADDR, /* highaddr */ 746 NULL, NULL, /* filter, filterarg */ 747 CISS_COMMAND_ALLOC_SIZE * 748 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 749 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 750 0, /* flags */ 751 &sc->ciss_command_dmat)) { 752 ciss_printf(sc, "can't allocate command DMA tag\n"); 753 return(ENOMEM); 754 } 755 /* 756 * Allocate memory and make it available for DMA. 757 */ 758 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 759 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 760 ciss_printf(sc, "can't allocate command memory\n"); 761 return(ENOMEM); 762 } 763 bus_dmamap_create(sc->ciss_command_dmat, 0, &sc->ciss_command_map); 764 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 765 sizeof(struct ciss_command) * sc->ciss_max_requests, 766 ciss_command_map_helper, sc, 0); 767 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 768 769 /* 770 * Set up the request and command structures, push requests onto 771 * the free queue. 772 */ 773 for (i = 1; i < sc->ciss_max_requests; i++) { 774 cr = &sc->ciss_request[i]; 775 cr->cr_sc = sc; 776 cr->cr_tag = i; 777 ciss_enqueue_free(cr); 778 } 779 return(0); 780 } 781 782 static void 783 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 784 { 785 struct ciss_softc *sc = (struct ciss_softc *)arg; 786 787 sc->ciss_command_phys = segs->ds_addr; 788 } 789 790 /************************************************************************ 791 * Identify the adapter, print some information about it. 792 */ 793 static int 794 ciss_identify_adapter(struct ciss_softc *sc) 795 { 796 struct ciss_request *cr; 797 int error, command_status; 798 799 debug_called(1); 800 801 cr = NULL; 802 803 /* 804 * Get a request, allocate storage for the adapter data. 805 */ 806 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 807 (void **)&sc->ciss_id, 808 sizeof(*sc->ciss_id))) != 0) 809 goto out; 810 811 /* 812 * Submit the request and wait for it to complete. 813 */ 814 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 815 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 816 goto out; 817 } 818 819 /* 820 * Check response. 821 */ 822 ciss_report_request(cr, &command_status, NULL); 823 switch(command_status) { 824 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 825 break; 826 case CISS_CMD_STATUS_DATA_UNDERRUN: 827 case CISS_CMD_STATUS_DATA_OVERRUN: 828 ciss_printf(sc, "data over/underrun reading adapter information\n"); 829 default: 830 ciss_printf(sc, "error reading adapter information (%s)\n", 831 ciss_name_command_status(command_status)); 832 error = EIO; 833 goto out; 834 } 835 836 /* sanity-check reply */ 837 if (!sc->ciss_id->big_map_supported) { 838 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 839 error = ENXIO; 840 goto out; 841 } 842 843 #if 0 844 /* XXX later revisions may not need this */ 845 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 846 #endif 847 848 /* XXX only really required for old 5300 adapters? */ 849 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 850 851 /* print information */ 852 if (1/*bootverbose*/) { 853 ciss_printf(sc, " %d logical drive%s configured\n", 854 sc->ciss_id->configured_logical_drives, 855 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 856 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 857 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 858 859 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 860 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 861 ciss_printf(sc, " supported I/O methods 0x%b\n", 862 sc->ciss_cfg->supported_methods, 863 "\20\1READY\2simple\3performant\4MEMQ\n"); 864 ciss_printf(sc, " active I/O method 0x%b\n", 865 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 866 ciss_printf(sc, " 4G page base 0x%08x\n", 867 sc->ciss_cfg->command_physlimit); 868 ciss_printf(sc, " interrupt coalesce delay %dus\n", 869 sc->ciss_cfg->interrupt_coalesce_delay); 870 ciss_printf(sc, " interrupt coalesce count %d\n", 871 sc->ciss_cfg->interrupt_coalesce_count); 872 ciss_printf(sc, " max outstanding commands %d\n", 873 sc->ciss_cfg->max_outstanding_commands); 874 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 875 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 876 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 877 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 878 } 879 880 out: 881 if (error) { 882 if (sc->ciss_id != NULL) { 883 free(sc->ciss_id, CISS_MALLOC_CLASS); 884 sc->ciss_id = NULL; 885 } 886 } 887 if (cr != NULL) 888 ciss_release_request(cr); 889 return(error); 890 } 891 892 /************************************************************************ 893 * Find logical drives on the adapter. 894 */ 895 static int 896 ciss_init_logical(struct ciss_softc *sc) 897 { 898 struct ciss_request *cr; 899 struct ciss_command *cc; 900 struct ciss_report_cdb *crc; 901 struct ciss_lun_report *cll; 902 int error, i; 903 size_t report_size; 904 int ndrives; 905 int command_status; 906 907 debug_called(1); 908 909 cr = NULL; 910 cll = NULL; 911 912 /* 913 * Get a request, allocate storage for the address list. 914 */ 915 if ((error = ciss_get_request(sc, &cr)) != 0) 916 goto out; 917 report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address); 918 cll = malloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 919 920 /* 921 * Build the Report Logical LUNs command. 922 */ 923 cc = CISS_FIND_COMMAND(cr); 924 cr->cr_data = cll; 925 cr->cr_length = report_size; 926 cr->cr_flags = CISS_REQ_DATAIN; 927 928 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 929 cc->header.address.physical.bus = 0; 930 cc->header.address.physical.target = 0; 931 cc->cdb.cdb_length = sizeof(*crc); 932 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 933 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 934 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 935 cc->cdb.timeout = 30; /* XXX better suggestions? */ 936 937 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 938 bzero(crc, sizeof(*crc)); 939 crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS; 940 crc->length = htonl(report_size); /* big-endian field */ 941 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 942 943 /* 944 * Submit the request and wait for it to complete. (timeout 945 * here should be much greater than above) 946 */ 947 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 948 ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error); 949 goto out; 950 } 951 952 /* 953 * Check response. Note that data over/underrun is OK. 954 */ 955 ciss_report_request(cr, &command_status, NULL); 956 switch(command_status) { 957 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 958 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 959 break; 960 case CISS_CMD_STATUS_DATA_OVERRUN: 961 ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n", 962 CISS_MAX_LOGICAL); 963 break; 964 default: 965 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 966 ciss_name_command_status(command_status)); 967 error = EIO; 968 goto out; 969 } 970 ciss_release_request(cr); 971 cr = NULL; 972 973 /* sanity-check reply */ 974 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 975 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 976 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 977 ndrives, CISS_MAX_LOGICAL); 978 return(ENXIO); 979 } 980 981 /* 982 * Save logical drive information. 983 */ 984 if (1/*bootverbose*/) 985 ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : ""); 986 if (ndrives != sc->ciss_id->configured_logical_drives) 987 ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n", 988 ndrives, sc->ciss_id->configured_logical_drives); 989 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 990 if (i < ndrives) { 991 sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */ 992 if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0) 993 continue; 994 /* 995 * If the drive has had media exchanged, we should bring it online. 996 */ 997 if (sc->ciss_logical[i].cl_lstatus->media_exchanged) 998 ciss_accept_media(sc, i, 0); 999 1000 } else { 1001 sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT; 1002 } 1003 } 1004 error = 0; 1005 1006 out: 1007 /* 1008 * Note that if the error is a timeout, we are taking a slight 1009 * risk here and assuming that the adapter will not respond at a 1010 * later time, scribbling over host memory. 1011 */ 1012 if (cr != NULL) 1013 ciss_release_request(cr); 1014 if (cll != NULL) 1015 free(cll, CISS_MALLOC_CLASS); 1016 return(error); 1017 } 1018 1019 static int 1020 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1021 { 1022 struct ciss_request *cr; 1023 struct ciss_command *cc; 1024 struct scsi_inquiry *inq; 1025 int error; 1026 int command_status; 1027 int lun; 1028 1029 cr = NULL; 1030 lun = ld->cl_address.logical.lun; 1031 1032 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1033 1034 if ((error = ciss_get_request(sc, &cr)) != 0) 1035 goto out; 1036 1037 cc = CISS_FIND_COMMAND(cr); 1038 cr->cr_data = &ld->cl_geometry; 1039 cr->cr_length = sizeof(ld->cl_geometry); 1040 cr->cr_flags = CISS_REQ_DATAIN; 1041 1042 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 1043 cc->header.address.logical.lun = lun; 1044 cc->cdb.cdb_length = 6; 1045 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1046 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1047 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1048 cc->cdb.timeout = 30; 1049 1050 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1051 inq->opcode = INQUIRY; 1052 inq->byte2 = SI_EVPD; 1053 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1054 inq->length = sizeof(ld->cl_geometry); 1055 1056 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1057 ciss_printf(sc, "error getting geometry (%d)\n", error); 1058 goto out; 1059 } 1060 1061 ciss_report_request(cr, &command_status, NULL); 1062 switch(command_status) { 1063 case CISS_CMD_STATUS_SUCCESS: 1064 case CISS_CMD_STATUS_DATA_UNDERRUN: 1065 break; 1066 case CISS_CMD_STATUS_DATA_OVERRUN: 1067 ciss_printf(sc, "WARNING: Data overrun\n"); 1068 break; 1069 default: 1070 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1071 ciss_name_command_status(command_status)); 1072 break; 1073 } 1074 1075 out: 1076 if (cr != NULL) 1077 ciss_release_request(cr); 1078 return(error); 1079 } 1080 /************************************************************************ 1081 * Identify a logical drive, initialise state related to it. 1082 */ 1083 static int 1084 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1085 { 1086 struct ciss_request *cr; 1087 struct ciss_command *cc; 1088 struct ciss_bmic_cdb *cbc; 1089 int error, command_status; 1090 1091 debug_called(1); 1092 1093 cr = NULL; 1094 1095 /* 1096 * Build a BMIC request to fetch the drive ID. 1097 */ 1098 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1099 (void **)&ld->cl_ldrive, 1100 sizeof(*ld->cl_ldrive))) != 0) 1101 goto out; 1102 cc = CISS_FIND_COMMAND(cr); 1103 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1104 cbc->log_drive = ld->cl_address.logical.lun; 1105 1106 /* 1107 * Submit the request and wait for it to complete. 1108 */ 1109 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1110 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1111 goto out; 1112 } 1113 1114 /* 1115 * Check response. 1116 */ 1117 ciss_report_request(cr, &command_status, NULL); 1118 switch(command_status) { 1119 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1120 break; 1121 case CISS_CMD_STATUS_DATA_UNDERRUN: 1122 case CISS_CMD_STATUS_DATA_OVERRUN: 1123 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1124 default: 1125 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1126 ciss_name_command_status(command_status)); 1127 error = EIO; 1128 goto out; 1129 } 1130 ciss_release_request(cr); 1131 cr = NULL; 1132 1133 /* 1134 * Build a CISS BMIC command to get the logical drive status. 1135 */ 1136 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1137 goto out; 1138 1139 /* 1140 * Get the logical drive geometry. 1141 */ 1142 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1143 goto out; 1144 1145 /* 1146 * Print the drive's basic characteristics. 1147 */ 1148 if (1/*bootverbose*/) { 1149 ciss_printf(sc, "logical drive %d: %s, %dMB ", 1150 cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1151 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1152 ld->cl_ldrive->block_size)); 1153 1154 ciss_print_ldrive(sc, ld); 1155 } 1156 out: 1157 if (error != 0) { 1158 /* make the drive not-exist */ 1159 ld->cl_status = CISS_LD_NONEXISTENT; 1160 if (ld->cl_ldrive != NULL) { 1161 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1162 ld->cl_ldrive = NULL; 1163 } 1164 if (ld->cl_lstatus != NULL) { 1165 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1166 ld->cl_lstatus = NULL; 1167 } 1168 } 1169 if (cr != NULL) 1170 ciss_release_request(cr); 1171 1172 return(error); 1173 } 1174 1175 /************************************************************************ 1176 * Get status for a logical drive. 1177 * 1178 * XXX should we also do this in response to Test Unit Ready? 1179 */ 1180 static int 1181 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1182 { 1183 struct ciss_request *cr; 1184 struct ciss_command *cc; 1185 struct ciss_bmic_cdb *cbc; 1186 int error, command_status; 1187 1188 /* 1189 * Build a CISS BMIC command to get the logical drive status. 1190 */ 1191 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1192 (void **)&ld->cl_lstatus, 1193 sizeof(*ld->cl_lstatus))) != 0) 1194 goto out; 1195 cc = CISS_FIND_COMMAND(cr); 1196 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1197 cbc->log_drive = ld->cl_address.logical.lun; 1198 1199 /* 1200 * Submit the request and wait for it to complete. 1201 */ 1202 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1203 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1204 goto out; 1205 } 1206 1207 /* 1208 * Check response. 1209 */ 1210 ciss_report_request(cr, &command_status, NULL); 1211 switch(command_status) { 1212 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1213 break; 1214 case CISS_CMD_STATUS_DATA_UNDERRUN: 1215 case CISS_CMD_STATUS_DATA_OVERRUN: 1216 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1217 default: 1218 ciss_printf(sc, "error reading logical drive status (%s)\n", 1219 ciss_name_command_status(command_status)); 1220 error = EIO; 1221 goto out; 1222 } 1223 1224 /* 1225 * Set the drive's summary status based on the returned status. 1226 * 1227 * XXX testing shows that a failed JBOD drive comes back at next 1228 * boot in "queued for expansion" mode. WTF? 1229 */ 1230 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1231 1232 out: 1233 if (cr != NULL) 1234 ciss_release_request(cr); 1235 return(error); 1236 } 1237 1238 /************************************************************************ 1239 * Notify the adapter of a config update. 1240 */ 1241 static int 1242 ciss_update_config(struct ciss_softc *sc) 1243 { 1244 int i; 1245 1246 debug_called(1); 1247 1248 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1249 for (i = 0; i < 1000; i++) { 1250 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1251 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1252 return(0); 1253 } 1254 DELAY(1000); 1255 } 1256 return(1); 1257 } 1258 1259 /************************************************************************ 1260 * Accept new media into a logical drive. 1261 * 1262 * XXX The drive has previously been offline; it would be good if we 1263 * could make sure it's not open right now. 1264 */ 1265 static int 1266 ciss_accept_media(struct ciss_softc *sc, int ldrive, int async) 1267 { 1268 struct ciss_request *cr; 1269 struct ciss_command *cc; 1270 struct ciss_bmic_cdb *cbc; 1271 int error; 1272 1273 debug(0, "bringing logical drive %d back online %ssynchronously", 1274 ldrive, async ? "a" : ""); 1275 1276 /* 1277 * Build a CISS BMIC command to bring the drive back online. 1278 */ 1279 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1280 NULL, 0)) != 0) 1281 goto out; 1282 cc = CISS_FIND_COMMAND(cr); 1283 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1284 cbc->log_drive = ldrive; 1285 1286 /* 1287 * Dispatch the request asynchronously if we can't sleep waiting 1288 * for it to complete. 1289 */ 1290 if (async) { 1291 cr->cr_complete = ciss_accept_media_complete; 1292 if ((error = ciss_start(cr)) != 0) 1293 goto out; 1294 return(0); 1295 } else { 1296 /* 1297 * Submit the request and wait for it to complete. 1298 */ 1299 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1300 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1301 goto out; 1302 } 1303 } 1304 1305 /* 1306 * Call the completion callback manually. 1307 */ 1308 ciss_accept_media_complete(cr); 1309 return(0); 1310 1311 out: 1312 if (cr != NULL) 1313 ciss_release_request(cr); 1314 return(error); 1315 } 1316 1317 static void 1318 ciss_accept_media_complete(struct ciss_request *cr) 1319 { 1320 int command_status; 1321 1322 /* 1323 * Check response. 1324 */ 1325 ciss_report_request(cr, &command_status, NULL); 1326 switch(command_status) { 1327 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1328 /* we should get a logical drive status changed event here */ 1329 break; 1330 default: 1331 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1332 ciss_name_command_status(command_status)); 1333 break; 1334 } 1335 ciss_release_request(cr); 1336 } 1337 1338 /************************************************************************ 1339 * Release adapter resources. 1340 */ 1341 static void 1342 ciss_free(struct ciss_softc *sc) 1343 { 1344 debug_called(1); 1345 1346 /* we're going away */ 1347 sc->ciss_flags |= CISS_FLAG_ABORTING; 1348 1349 /* terminate the periodic heartbeat routine */ 1350 callout_stop(&sc->ciss_periodic); 1351 1352 /* cancel the Event Notify chain */ 1353 ciss_notify_abort(sc); 1354 1355 /* free the controller data */ 1356 if (sc->ciss_id != NULL) 1357 free(sc->ciss_id, CISS_MALLOC_CLASS); 1358 1359 /* release I/O resources */ 1360 if (sc->ciss_regs_resource != NULL) 1361 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1362 sc->ciss_regs_rid, sc->ciss_regs_resource); 1363 if (sc->ciss_cfg_resource != NULL) 1364 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1365 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1366 if (sc->ciss_intr != NULL) 1367 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1368 if (sc->ciss_irq_resource != NULL) 1369 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1370 sc->ciss_irq_rid, sc->ciss_irq_resource); 1371 1372 /* destroy DMA tags */ 1373 if (sc->ciss_parent_dmat) 1374 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1375 if (sc->ciss_buffer_dmat) 1376 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1377 1378 /* destroy command memory and DMA tag */ 1379 if (sc->ciss_command != NULL) { 1380 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1381 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1382 bus_dmamap_destroy(sc->ciss_command_dmat, sc->ciss_command_map); 1383 } 1384 if (sc->ciss_buffer_dmat) 1385 bus_dma_tag_destroy(sc->ciss_command_dmat); 1386 1387 /* disconnect from CAM */ 1388 if (sc->ciss_cam_sim) { 1389 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim)); 1390 cam_sim_free(sc->ciss_cam_sim); 1391 } 1392 if (sc->ciss_cam_devq) 1393 cam_simq_release(sc->ciss_cam_devq); 1394 /* XXX what about ciss_cam_path? */ 1395 } 1396 1397 /************************************************************************ 1398 * Give a command to the adapter. 1399 * 1400 * Note that this uses the simple transport layer directly. If we 1401 * want to add support for other layers, we'll need a switch of some 1402 * sort. 1403 * 1404 * Note that the simple transport layer has no way of refusing a 1405 * command; we only have as many request structures as the adapter 1406 * supports commands, so we don't have to check (this presumes that 1407 * the adapter can handle commands as fast as we throw them at it). 1408 */ 1409 static int 1410 ciss_start(struct ciss_request *cr) 1411 { 1412 struct ciss_command *cc; /* XXX debugging only */ 1413 int error; 1414 1415 cc = CISS_FIND_COMMAND(cr); 1416 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1417 1418 /* 1419 * Map the request's data. 1420 */ 1421 if ((error = ciss_map_request(cr))) 1422 return(error); 1423 1424 #if 0 1425 ciss_print_request(cr); 1426 #endif 1427 1428 /* 1429 * Post the command to the adapter. 1430 */ 1431 ciss_enqueue_busy(cr); 1432 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 1433 1434 return(0); 1435 } 1436 1437 /************************************************************************ 1438 * Fetch completed request(s) from the adapter, queue them for 1439 * completion handling. 1440 * 1441 * Note that this uses the simple transport layer directly. If we 1442 * want to add support for other layers, we'll need a switch of some 1443 * sort. 1444 * 1445 * Note that the simple transport mechanism does not require any 1446 * reentrancy protection; the OPQ read is atomic. If there is a 1447 * chance of a race with something else that might move the request 1448 * off the busy list, then we will have to lock against that 1449 * (eg. timeouts, etc.) 1450 */ 1451 static void 1452 ciss_done(struct ciss_softc *sc) 1453 { 1454 struct ciss_request *cr; 1455 struct ciss_command *cc; 1456 u_int32_t tag, index; 1457 int complete; 1458 1459 debug_called(3); 1460 1461 /* 1462 * Loop quickly taking requests from the adapter and moving them 1463 * from the busy queue to the completed queue. 1464 */ 1465 complete = 0; 1466 for (;;) { 1467 1468 /* see if the OPQ contains anything */ 1469 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1470 break; 1471 1472 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1473 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1474 break; 1475 index = tag >> 2; 1476 debug(2, "completed command %d%s", index, 1477 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1478 if (index >= sc->ciss_max_requests) { 1479 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1480 continue; 1481 } 1482 cr = &(sc->ciss_request[index]); 1483 cc = CISS_FIND_COMMAND(cr); 1484 cc->header.host_tag = tag; /* not updated by adapter */ 1485 if (ciss_remove_busy(cr)) { 1486 /* assume this is garbage out of the adapter */ 1487 ciss_printf(sc, "completed nonbusy request %d\n", index); 1488 } else { 1489 ciss_enqueue_complete(cr); 1490 } 1491 complete = 1; 1492 } 1493 1494 /* 1495 * Invoke completion processing. If we can defer this out of 1496 * interrupt context, that'd be good. 1497 */ 1498 if (complete) 1499 ciss_complete(sc); 1500 } 1501 1502 /************************************************************************ 1503 * Take an interrupt from the adapter. 1504 */ 1505 static void 1506 ciss_intr(void *arg) 1507 { 1508 struct ciss_softc *sc = (struct ciss_softc *)arg; 1509 1510 /* 1511 * The only interrupt we recognise indicates that there are 1512 * entries in the outbound post queue. 1513 */ 1514 ciss_done(sc); 1515 } 1516 1517 /************************************************************************ 1518 * Process completed requests. 1519 * 1520 * Requests can be completed in three fashions: 1521 * 1522 * - by invoking a callback function (cr_complete is non-null) 1523 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1524 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1525 */ 1526 static void 1527 ciss_complete(struct ciss_softc *sc) 1528 { 1529 struct ciss_request *cr; 1530 1531 debug_called(2); 1532 1533 /* 1534 * Loop taking requests off the completed queue and performing 1535 * completion processing on them. 1536 */ 1537 for (;;) { 1538 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1539 break; 1540 ciss_unmap_request(cr); 1541 1542 /* 1543 * If the request has a callback, invoke it. 1544 */ 1545 if (cr->cr_complete != NULL) { 1546 cr->cr_complete(cr); 1547 continue; 1548 } 1549 1550 /* 1551 * If someone is sleeping on this request, wake them up. 1552 */ 1553 if (cr->cr_flags & CISS_REQ_SLEEP) { 1554 cr->cr_flags &= ~CISS_REQ_SLEEP; 1555 wakeup(cr); 1556 continue; 1557 } 1558 1559 /* 1560 * If someone is polling this request for completion, signal. 1561 */ 1562 if (cr->cr_flags & CISS_REQ_POLL) { 1563 cr->cr_flags &= ~CISS_REQ_POLL; 1564 continue; 1565 } 1566 1567 /* 1568 * Give up and throw the request back on the free queue. This 1569 * should never happen; resources will probably be lost. 1570 */ 1571 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1572 ciss_enqueue_free(cr); 1573 } 1574 } 1575 1576 /************************************************************************ 1577 * Report on the completion status of a request, and pass back SCSI 1578 * and command status values. 1579 */ 1580 static int 1581 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1582 { 1583 struct ciss_command *cc; 1584 struct ciss_error_info *ce; 1585 1586 debug_called(2); 1587 1588 cc = CISS_FIND_COMMAND(cr); 1589 ce = (struct ciss_error_info *)&(cc->sg[0]); 1590 1591 /* 1592 * We don't consider data under/overrun an error for the Report 1593 * Logical/Physical LUNs commands. 1594 */ 1595 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1596 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1597 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1598 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1599 debug(2, "ignoring irrelevant under/overrun error"); 1600 } 1601 1602 /* 1603 * Check the command's error bit, if clear, there's no status and 1604 * everything is OK. 1605 */ 1606 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1607 if (scsi_status != NULL) 1608 *scsi_status = SCSI_STATUS_OK; 1609 if (command_status != NULL) 1610 *command_status = CISS_CMD_STATUS_SUCCESS; 1611 return(0); 1612 } else { 1613 if (command_status != NULL) 1614 *command_status = ce->command_status; 1615 if (scsi_status != NULL) { 1616 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1617 *scsi_status = ce->scsi_status; 1618 } else { 1619 *scsi_status = -1; 1620 } 1621 } 1622 if (bootverbose) 1623 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1624 ce->command_status, ciss_name_command_status(ce->command_status), 1625 ce->scsi_status); 1626 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1627 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1628 ce->additional_error_info.invalid_command.offense_size, 1629 ce->additional_error_info.invalid_command.offense_offset, 1630 ce->additional_error_info.invalid_command.offense_value); 1631 } 1632 } 1633 return(1); 1634 } 1635 1636 /************************************************************************ 1637 * Issue a request and don't return until it's completed. 1638 * 1639 * Depending on adapter status, we may poll or sleep waiting for 1640 * completion. 1641 */ 1642 static int 1643 ciss_synch_request(struct ciss_request *cr, int timeout) 1644 { 1645 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1646 return(ciss_wait_request(cr, timeout)); 1647 } else { 1648 return(ciss_poll_request(cr, timeout)); 1649 } 1650 } 1651 1652 /************************************************************************ 1653 * Issue a request and poll for completion. 1654 * 1655 * Timeout in milliseconds. 1656 */ 1657 static int 1658 ciss_poll_request(struct ciss_request *cr, int timeout) 1659 { 1660 int error; 1661 1662 debug_called(2); 1663 1664 cr->cr_flags |= CISS_REQ_POLL; 1665 if ((error = ciss_start(cr)) != 0) 1666 return(error); 1667 1668 do { 1669 ciss_done(cr->cr_sc); 1670 if (!(cr->cr_flags & CISS_REQ_POLL)) 1671 return(0); 1672 DELAY(1000); 1673 } while (timeout-- >= 0); 1674 return(EWOULDBLOCK); 1675 } 1676 1677 /************************************************************************ 1678 * Issue a request and sleep waiting for completion. 1679 * 1680 * Timeout in milliseconds. Note that a spurious wakeup will reset 1681 * the timeout. 1682 */ 1683 static int 1684 ciss_wait_request(struct ciss_request *cr, int timeout) 1685 { 1686 int s, error; 1687 1688 debug_called(2); 1689 1690 cr->cr_flags |= CISS_REQ_SLEEP; 1691 if ((error = ciss_start(cr)) != 0) 1692 return(error); 1693 1694 s = splcam(); 1695 while (cr->cr_flags & CISS_REQ_SLEEP) { 1696 error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000); 1697 /* 1698 * On wakeup or interruption due to restartable activity, go 1699 * back and check to see if we're done. 1700 */ 1701 if ((error == 0) || (error == ERESTART)) { 1702 error = 0; 1703 continue; 1704 } 1705 /* 1706 * Timeout, interrupted system call, etc. 1707 */ 1708 break; 1709 } 1710 splx(s); 1711 return(error); 1712 } 1713 1714 #if 0 1715 /************************************************************************ 1716 * Abort a request. Note that a potential exists here to race the 1717 * request being completed; the caller must deal with this. 1718 */ 1719 static int 1720 ciss_abort_request(struct ciss_request *ar) 1721 { 1722 struct ciss_request *cr; 1723 struct ciss_command *cc; 1724 struct ciss_message_cdb *cmc; 1725 int error; 1726 1727 debug_called(1); 1728 1729 /* get a request */ 1730 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1731 return(error); 1732 1733 /* build the abort command */ 1734 cc = CISS_FIND_COMMAND(cr); 1735 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1736 cc->header.address.physical.target = 0; 1737 cc->header.address.physical.bus = 0; 1738 cc->cdb.cdb_length = sizeof(*cmc); 1739 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1740 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1741 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1742 cc->cdb.timeout = 30; 1743 1744 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1745 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1746 cmc->type = CISS_MESSAGE_ABORT_TASK; 1747 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1748 1749 /* 1750 * Send the request and wait for a response. If we believe we 1751 * aborted the request OK, clear the flag that indicates it's 1752 * running. 1753 */ 1754 error = ciss_synch_request(cr, 35 * 1000); 1755 if (!error) 1756 error = ciss_report_request(cr, NULL, NULL); 1757 ciss_release_request(cr); 1758 1759 return(error); 1760 } 1761 #endif 1762 1763 1764 /************************************************************************ 1765 * Fetch and initialise a request 1766 */ 1767 static int 1768 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 1769 { 1770 struct ciss_request *cr; 1771 1772 debug_called(2); 1773 1774 /* 1775 * Get a request and clean it up. 1776 */ 1777 if ((cr = ciss_dequeue_free(sc)) == NULL) 1778 return(ENOMEM); 1779 1780 cr->cr_data = NULL; 1781 cr->cr_flags = 0; 1782 cr->cr_complete = NULL; 1783 1784 ciss_preen_command(cr); 1785 *crp = cr; 1786 return(0); 1787 } 1788 1789 static void 1790 ciss_preen_command(struct ciss_request *cr) 1791 { 1792 struct ciss_command *cc; 1793 u_int32_t cmdphys; 1794 1795 /* 1796 * Clean up the command structure. 1797 * 1798 * Note that we set up the error_info structure here, since the 1799 * length can be overwritten by any command. 1800 */ 1801 cc = CISS_FIND_COMMAND(cr); 1802 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 1803 cc->header.sg_total = 0; 1804 cc->header.host_tag = cr->cr_tag << 2; 1805 cc->header.host_tag_zeroes = 0; 1806 cmdphys = CISS_FIND_COMMANDPHYS(cr); 1807 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 1808 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 1809 1810 } 1811 1812 /************************************************************************ 1813 * Release a request to the free list. 1814 */ 1815 static void 1816 ciss_release_request(struct ciss_request *cr) 1817 { 1818 struct ciss_softc *sc; 1819 1820 debug_called(2); 1821 1822 sc = cr->cr_sc; 1823 1824 /* release the request to the free queue */ 1825 ciss_requeue_free(cr); 1826 } 1827 1828 /************************************************************************ 1829 * Allocate a request that will be used to send a BMIC command. Do some 1830 * of the common setup here to avoid duplicating it everywhere else. 1831 */ 1832 static int 1833 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 1834 int opcode, void **bufp, size_t bufsize) 1835 { 1836 struct ciss_request *cr; 1837 struct ciss_command *cc; 1838 struct ciss_bmic_cdb *cbc; 1839 void *buf; 1840 int error; 1841 int dataout; 1842 1843 debug_called(2); 1844 1845 cr = NULL; 1846 buf = NULL; 1847 1848 /* 1849 * Get a request. 1850 */ 1851 if ((error = ciss_get_request(sc, &cr)) != 0) 1852 goto out; 1853 1854 /* 1855 * Allocate data storage if requested, determine the data direction. 1856 */ 1857 dataout = 0; 1858 if ((bufsize > 0) && (bufp != NULL)) { 1859 if (*bufp == NULL) { 1860 buf = malloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1861 } else { 1862 buf = *bufp; 1863 dataout = 1; /* we are given a buffer, so we are writing */ 1864 } 1865 } 1866 1867 /* 1868 * Build a CISS BMIC command to get the logical drive ID. 1869 */ 1870 cr->cr_data = buf; 1871 cr->cr_length = bufsize; 1872 if (!dataout) 1873 cr->cr_flags = CISS_REQ_DATAIN; 1874 1875 cc = CISS_FIND_COMMAND(cr); 1876 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1877 cc->header.address.physical.bus = 0; 1878 cc->header.address.physical.target = 0; 1879 cc->cdb.cdb_length = sizeof(*cbc); 1880 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1881 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1882 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 1883 cc->cdb.timeout = 0; 1884 1885 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1886 bzero(cbc, sizeof(*cbc)); 1887 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 1888 cbc->bmic_opcode = opcode; 1889 cbc->size = htons((u_int16_t)bufsize); 1890 1891 out: 1892 if (error) { 1893 if (cr != NULL) 1894 ciss_release_request(cr); 1895 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1896 free(buf, CISS_MALLOC_CLASS); 1897 } else { 1898 *crp = cr; 1899 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 1900 *bufp = buf; 1901 } 1902 return(error); 1903 } 1904 1905 /************************************************************************ 1906 * Handle a command passed in from userspace. 1907 */ 1908 static int 1909 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 1910 { 1911 struct ciss_request *cr; 1912 struct ciss_command *cc; 1913 struct ciss_error_info *ce; 1914 int error; 1915 1916 debug_called(1); 1917 1918 cr = NULL; 1919 1920 /* 1921 * Get a request. 1922 */ 1923 if ((error = ciss_get_request(sc, &cr)) != 0) 1924 goto out; 1925 cc = CISS_FIND_COMMAND(cr); 1926 1927 /* 1928 * Allocate an in-kernel databuffer if required, copy in user data. 1929 */ 1930 cr->cr_length = ioc->buf_size; 1931 if (ioc->buf_size > 0) { 1932 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 1933 error = ENOMEM; 1934 goto out; 1935 } 1936 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 1937 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1938 goto out; 1939 } 1940 } 1941 1942 /* 1943 * Build the request based on the user command. 1944 */ 1945 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 1946 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 1947 1948 /* XXX anything else to populate here? */ 1949 1950 /* 1951 * Run the command. 1952 */ 1953 if ((error = ciss_synch_request(cr, 60 * 1000))) { 1954 debug(0, "request failed - %d", error); 1955 goto out; 1956 } 1957 1958 /* 1959 * Copy the results back to the user. 1960 */ 1961 ce = (struct ciss_error_info *)&(cc->sg[0]); 1962 bcopy(ce, &ioc->error_info, sizeof(*ce)); 1963 if ((ioc->buf_size > 0) && 1964 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 1965 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 1966 goto out; 1967 } 1968 1969 /* done OK */ 1970 error = 0; 1971 1972 out: 1973 if ((cr != NULL) && (cr->cr_data != NULL)) 1974 free(cr->cr_data, CISS_MALLOC_CLASS); 1975 if (cr != NULL) 1976 ciss_release_request(cr); 1977 return(error); 1978 } 1979 1980 /************************************************************************ 1981 * Map a request into bus-visible space, initialise the scatter/gather 1982 * list. 1983 */ 1984 static int 1985 ciss_map_request(struct ciss_request *cr) 1986 { 1987 struct ciss_softc *sc; 1988 1989 debug_called(2); 1990 1991 sc = cr->cr_sc; 1992 1993 /* check that mapping is necessary */ 1994 if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 1995 return(0); 1996 1997 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1998 bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length, 1999 ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0); 2000 2001 if (cr->cr_flags & CISS_REQ_DATAIN) 2002 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2003 if (cr->cr_flags & CISS_REQ_DATAOUT) 2004 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2005 2006 cr->cr_flags |= CISS_REQ_MAPPED; 2007 return(0); 2008 } 2009 2010 static void 2011 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2012 { 2013 struct ciss_command *cc; 2014 int i; 2015 2016 debug_called(2); 2017 2018 cc = (struct ciss_command *)arg; 2019 for (i = 0; i < nseg; i++) { 2020 cc->sg[i].address = segs[i].ds_addr; 2021 cc->sg[i].length = segs[i].ds_len; 2022 cc->sg[i].extension = 0; 2023 } 2024 /* we leave the s/g table entirely within the command */ 2025 cc->header.sg_in_list = nseg; 2026 cc->header.sg_total = nseg; 2027 } 2028 2029 /************************************************************************ 2030 * Unmap a request from bus-visible space. 2031 */ 2032 static void 2033 ciss_unmap_request(struct ciss_request *cr) 2034 { 2035 struct ciss_softc *sc; 2036 2037 debug_called(2); 2038 2039 sc = cr->cr_sc; 2040 2041 /* check that unmapping is necessary */ 2042 if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL)) 2043 return; 2044 2045 if (cr->cr_flags & CISS_REQ_DATAIN) 2046 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2047 if (cr->cr_flags & CISS_REQ_DATAOUT) 2048 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2049 2050 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2051 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2052 cr->cr_flags &= ~CISS_REQ_MAPPED; 2053 } 2054 2055 /************************************************************************ 2056 * Attach the driver to CAM. 2057 * 2058 * We put all the logical drives on a single SCSI bus. 2059 */ 2060 static int 2061 ciss_cam_init(struct ciss_softc *sc) 2062 { 2063 2064 debug_called(1); 2065 2066 /* 2067 * Allocate a devq. We can reuse this for the masked physical 2068 * devices if we decide to export these as well. 2069 */ 2070 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2071 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2072 return(ENOMEM); 2073 } 2074 2075 /* 2076 * Create a SIM. 2077 */ 2078 if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc, 2079 device_get_unit(sc->ciss_dev), 2080 sc->ciss_max_requests - 2, 2081 1, 2082 sc->ciss_cam_devq)) == NULL) { 2083 ciss_printf(sc, "can't allocate CAM SIM\n"); 2084 return(ENOMEM); 2085 } 2086 2087 /* 2088 * Register bus 0 (the 'logical drives' bus) with this SIM. 2089 */ 2090 if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) { 2091 ciss_printf(sc, "can't register SCSI bus 0\n"); 2092 return(ENXIO); 2093 } 2094 2095 /* 2096 * Initiate a rescan of the bus. 2097 */ 2098 ciss_cam_rescan_all(sc); 2099 2100 return(0); 2101 } 2102 2103 /************************************************************************ 2104 * Initiate a rescan of the 'logical devices' SIM 2105 */ 2106 static void 2107 ciss_cam_rescan_target(struct ciss_softc *sc, int target) 2108 { 2109 union ccb *ccb; 2110 2111 debug_called(1); 2112 2113 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2114 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2115 return; 2116 } 2117 2118 if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0) 2119 != CAM_REQ_CMP) { 2120 ciss_printf(sc, "rescan failed (can't create path)\n"); 2121 return; 2122 } 2123 2124 xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/); 2125 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2126 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2127 ccb->crcn.flags = CAM_FLAG_NONE; 2128 xpt_action(ccb); 2129 2130 /* scan is now in progress */ 2131 } 2132 2133 static void 2134 ciss_cam_rescan_all(struct ciss_softc *sc) 2135 { 2136 return(ciss_cam_rescan_target(sc, 0)); 2137 } 2138 2139 static void 2140 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2141 { 2142 xpt_free_path(ccb->ccb_h.path); 2143 free(ccb, M_TEMP); 2144 } 2145 2146 /************************************************************************ 2147 * Handle requests coming from CAM 2148 */ 2149 static void 2150 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2151 { 2152 struct ciss_softc *sc; 2153 struct ccb_scsiio *csio; 2154 int target; 2155 2156 sc = cam_sim_softc(sim); 2157 csio = (struct ccb_scsiio *)&ccb->csio; 2158 target = csio->ccb_h.target_id; 2159 2160 switch (ccb->ccb_h.func_code) { 2161 2162 /* perform SCSI I/O */ 2163 case XPT_SCSI_IO: 2164 if (!ciss_cam_action_io(sim, csio)) 2165 return; 2166 break; 2167 2168 /* perform geometry calculations */ 2169 case XPT_CALC_GEOMETRY: 2170 { 2171 struct ccb_calc_geometry *ccg = &ccb->ccg; 2172 struct ciss_ldrive *ld = &sc->ciss_logical[target]; 2173 2174 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2175 2176 /* 2177 * Use the cached geometry settings unless the fault tolerance 2178 * is invalid. 2179 */ 2180 if (ld->cl_geometry.fault_tolerance == 0xFF) { 2181 u_int32_t secs_per_cylinder; 2182 2183 ccg->heads = 255; 2184 ccg->secs_per_track = 32; 2185 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2186 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2187 } else { 2188 ccg->heads = ld->cl_geometry.heads; 2189 ccg->secs_per_track = ld->cl_geometry.sectors; 2190 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2191 } 2192 ccb->ccb_h.status = CAM_REQ_CMP; 2193 break; 2194 } 2195 2196 /* handle path attribute inquiry */ 2197 case XPT_PATH_INQ: 2198 { 2199 struct ccb_pathinq *cpi = &ccb->cpi; 2200 2201 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2202 2203 cpi->version_num = 1; 2204 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2205 cpi->target_sprt = 0; 2206 cpi->hba_misc = 0; 2207 cpi->max_target = CISS_MAX_LOGICAL; 2208 cpi->max_lun = 0; /* 'logical drive' channel only */ 2209 cpi->initiator_id = CISS_MAX_LOGICAL; 2210 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2211 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2212 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2213 cpi->unit_number = cam_sim_unit(sim); 2214 cpi->bus_id = cam_sim_bus(sim); 2215 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2216 ccb->ccb_h.status = CAM_REQ_CMP; 2217 break; 2218 } 2219 2220 case XPT_GET_TRAN_SETTINGS: 2221 { 2222 struct ccb_trans_settings *cts = &ccb->cts; 2223 int bus, target; 2224 2225 bus = cam_sim_bus(sim); 2226 target = cts->ccb_h.target_id; 2227 2228 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2229 cts->valid = 0; 2230 2231 /* disconnect always OK */ 2232 cts->flags |= CCB_TRANS_DISC_ENB; 2233 cts->valid |= CCB_TRANS_DISC_VALID; 2234 2235 cts->ccb_h.status = CAM_REQ_CMP; 2236 break; 2237 } 2238 2239 default: /* we can't do this */ 2240 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2241 ccb->ccb_h.status = CAM_REQ_INVALID; 2242 break; 2243 } 2244 2245 xpt_done(ccb); 2246 } 2247 2248 /************************************************************************ 2249 * Handle a CAM SCSI I/O request. 2250 */ 2251 static int 2252 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2253 { 2254 struct ciss_softc *sc; 2255 int bus, target; 2256 struct ciss_request *cr; 2257 struct ciss_command *cc; 2258 int error; 2259 2260 sc = cam_sim_softc(sim); 2261 bus = cam_sim_bus(sim); 2262 target = csio->ccb_h.target_id; 2263 2264 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2265 2266 /* check for I/O attempt to nonexistent device */ 2267 if ((bus != 0) || 2268 (target > CISS_MAX_LOGICAL) || 2269 (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) { 2270 debug(3, " device does not exist"); 2271 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2272 } 2273 2274 /* firmware does not support commands > 10 bytes */ 2275 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2276 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2277 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2278 } 2279 2280 /* check that the CDB pointer is not to a physical address */ 2281 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2282 debug(3, " CDB pointer is to physical address"); 2283 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2284 } 2285 2286 /* if there is data transfer, it must be to/from a virtual address */ 2287 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2288 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2289 debug(3, " data pointer is to physical address"); 2290 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2291 } 2292 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2293 debug(3, " data has premature s/g setup"); 2294 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2295 } 2296 } 2297 2298 /* abandon aborted ccbs or those that have failed validation */ 2299 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2300 debug(3, "abandoning CCB due to abort/validation failure"); 2301 return(EINVAL); 2302 } 2303 2304 /* handle emulation of some SCSI commands ourself */ 2305 if (ciss_cam_emulate(sc, csio)) 2306 return(0); 2307 2308 /* 2309 * Get a request to manage this command. If we can't, return the 2310 * ccb, freeze the queue and flag so that we unfreeze it when a 2311 * request completes. 2312 */ 2313 if ((error = ciss_get_request(sc, &cr)) != 0) { 2314 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2315 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2316 return(error); 2317 } 2318 2319 /* 2320 * Build the command. 2321 */ 2322 cc = CISS_FIND_COMMAND(cr); 2323 cr->cr_data = csio->data_ptr; 2324 cr->cr_length = csio->dxfer_len; 2325 cr->cr_complete = ciss_cam_complete; 2326 cr->cr_private = csio; 2327 2328 cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL; 2329 cc->header.address.logical.lun = target; 2330 cc->cdb.cdb_length = csio->cdb_len; 2331 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2332 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2333 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2334 cr->cr_flags = CISS_REQ_DATAOUT; 2335 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2336 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2337 cr->cr_flags = CISS_REQ_DATAIN; 2338 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2339 } else { 2340 cr->cr_flags = 0; 2341 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2342 } 2343 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2344 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2345 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2346 } else { 2347 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2348 } 2349 2350 /* 2351 * Submit the request to the adapter. 2352 * 2353 * Note that this may fail if we're unable to map the request (and 2354 * if we ever learn a transport layer other than simple, may fail 2355 * if the adapter rejects the command). 2356 */ 2357 if ((error = ciss_start(cr)) != 0) { 2358 xpt_freeze_simq(sc->ciss_cam_sim, 1); 2359 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2360 ciss_release_request(cr); 2361 return(error); 2362 } 2363 2364 return(0); 2365 } 2366 2367 /************************************************************************ 2368 * Emulate SCSI commands the adapter doesn't handle as we might like. 2369 */ 2370 static int 2371 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2372 { 2373 int target; 2374 u_int8_t opcode; 2375 2376 2377 target = csio->ccb_h.target_id; 2378 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2379 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2380 2381 /* 2382 * Handle requests for volumes that don't exist. A selection timeout 2383 * is slightly better than an illegal request. Other errors might be 2384 * better. 2385 */ 2386 if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) { 2387 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2388 xpt_done((union ccb *)csio); 2389 return(1); 2390 } 2391 2392 /* 2393 * Handle requests for volumes that exist but are offline. 2394 * 2395 * I/O operations should fail, everything else should work. 2396 */ 2397 if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) { 2398 switch(opcode) { 2399 case READ_6: 2400 case READ_10: 2401 case READ_12: 2402 case WRITE_6: 2403 case WRITE_10: 2404 case WRITE_12: 2405 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2406 xpt_done((union ccb *)csio); 2407 return(1); 2408 } 2409 } 2410 2411 2412 /* if we have to fake Synchronise Cache */ 2413 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2414 2415 /* 2416 * If this is a Synchronise Cache command, typically issued when 2417 * a device is closed, flush the adapter and complete now. 2418 */ 2419 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2420 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2421 ciss_flush_adapter(sc); 2422 csio->ccb_h.status = CAM_REQ_CMP; 2423 xpt_done((union ccb *)csio); 2424 return(1); 2425 } 2426 } 2427 2428 return(0); 2429 } 2430 2431 /************************************************************************ 2432 * Check for possibly-completed commands. 2433 */ 2434 static void 2435 ciss_cam_poll(struct cam_sim *sim) 2436 { 2437 struct ciss_softc *sc = cam_sim_softc(sim); 2438 2439 debug_called(2); 2440 2441 ciss_done(sc); 2442 } 2443 2444 /************************************************************************ 2445 * Handle completion of a command - pass results back through the CCB 2446 */ 2447 static void 2448 ciss_cam_complete(struct ciss_request *cr) 2449 { 2450 struct ciss_softc *sc; 2451 struct ciss_command *cc; 2452 struct ciss_error_info *ce; 2453 struct ccb_scsiio *csio; 2454 int scsi_status; 2455 int command_status; 2456 2457 debug_called(2); 2458 2459 sc = cr->cr_sc; 2460 cc = CISS_FIND_COMMAND(cr); 2461 ce = (struct ciss_error_info *)&(cc->sg[0]); 2462 csio = (struct ccb_scsiio *)cr->cr_private; 2463 2464 /* 2465 * Extract status values from request. 2466 */ 2467 ciss_report_request(cr, &command_status, &scsi_status); 2468 csio->scsi_status = scsi_status; 2469 2470 /* 2471 * Handle specific SCSI status values. 2472 */ 2473 switch(scsi_status) { 2474 /* no status due to adapter error */ 2475 case -1: 2476 debug(0, "adapter error"); 2477 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2478 break; 2479 2480 /* no status due to command completed OK */ 2481 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2482 debug(2, "SCSI_STATUS_OK"); 2483 csio->ccb_h.status = CAM_REQ_CMP; 2484 break; 2485 2486 /* check condition, sense data included */ 2487 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2488 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d", 2489 ce->sense_length, ce->residual_count); 2490 bzero(&csio->sense_data, SSD_FULL_SIZE); 2491 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2492 csio->sense_len = ce->sense_length; 2493 csio->resid = ce->residual_count; 2494 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2495 #ifdef CISS_DEBUG 2496 { 2497 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2498 debug(0, "sense key %x", sns->flags & SSD_KEY); 2499 } 2500 #endif 2501 break; 2502 2503 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2504 debug(0, "SCSI_STATUS_BUSY"); 2505 csio->ccb_h.status = CAM_SCSI_BUSY; 2506 break; 2507 2508 default: 2509 debug(0, "unknown status 0x%x", csio->scsi_status); 2510 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2511 break; 2512 } 2513 2514 /* handle post-command fixup */ 2515 ciss_cam_complete_fixup(sc, csio); 2516 2517 /* tell CAM we're ready for more commands */ 2518 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2519 2520 xpt_done((union ccb *)csio); 2521 ciss_release_request(cr); 2522 } 2523 2524 /******************************************************************************** 2525 * Fix up the result of some commands here. 2526 */ 2527 static void 2528 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2529 { 2530 struct scsi_inquiry_data *inq; 2531 struct ciss_ldrive *cl; 2532 int target; 2533 2534 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2535 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2536 2537 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2538 target = csio->ccb_h.target_id; 2539 cl = &sc->ciss_logical[target]; 2540 2541 padstr(inq->vendor, "COMPAQ", 8); 2542 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2543 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2544 } 2545 } 2546 2547 2548 /******************************************************************************** 2549 * Find a peripheral attached at (target) 2550 */ 2551 static struct cam_periph * 2552 ciss_find_periph(struct ciss_softc *sc, int target) 2553 { 2554 struct cam_periph *periph; 2555 struct cam_path *path; 2556 int status; 2557 2558 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0); 2559 if (status == CAM_REQ_CMP) { 2560 periph = cam_periph_find(path, NULL); 2561 xpt_free_path(path); 2562 } else { 2563 periph = NULL; 2564 } 2565 return(periph); 2566 } 2567 2568 /******************************************************************************** 2569 * Name the device at (target) 2570 * 2571 * XXX is this strictly correct? 2572 */ 2573 int 2574 ciss_name_device(struct ciss_softc *sc, int target) 2575 { 2576 struct cam_periph *periph; 2577 2578 if ((periph = ciss_find_periph(sc, target)) != NULL) { 2579 sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number); 2580 return(0); 2581 } 2582 sc->ciss_logical[target].cl_name[0] = 0; 2583 return(ENOENT); 2584 } 2585 2586 /************************************************************************ 2587 * Periodic status monitoring. 2588 */ 2589 static void 2590 ciss_periodic(void *arg) 2591 { 2592 struct ciss_softc *sc; 2593 2594 debug_called(1); 2595 2596 sc = (struct ciss_softc *)arg; 2597 2598 /* 2599 * Check the adapter heartbeat. 2600 */ 2601 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2602 sc->ciss_heart_attack++; 2603 debug(0, "adapter heart attack in progress 0x%x/%d", 2604 sc->ciss_heartbeat, sc->ciss_heart_attack); 2605 if (sc->ciss_heart_attack == 3) { 2606 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2607 /* XXX should reset adapter here */ 2608 } 2609 } else { 2610 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2611 sc->ciss_heart_attack = 0; 2612 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2613 } 2614 2615 /* 2616 * If the notify event request has died for some reason, or has 2617 * not started yet, restart it. 2618 */ 2619 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2620 debug(0, "(re)starting Event Notify chain"); 2621 ciss_notify_event(sc); 2622 } 2623 2624 /* 2625 * Reschedule. 2626 */ 2627 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2628 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, 2629 ciss_periodic, sc); 2630 } 2631 2632 /************************************************************************ 2633 * Request a notification response from the adapter. 2634 * 2635 * If (cr) is NULL, this is the first request of the adapter, so 2636 * reset the adapter's message pointer and start with the oldest 2637 * message available. 2638 */ 2639 static void 2640 ciss_notify_event(struct ciss_softc *sc) 2641 { 2642 struct ciss_request *cr; 2643 struct ciss_command *cc; 2644 struct ciss_notify_cdb *cnc; 2645 int error; 2646 2647 debug_called(1); 2648 2649 cr = sc->ciss_periodic_notify; 2650 2651 /* get a request if we don't already have one */ 2652 if (cr == NULL) { 2653 if ((error = ciss_get_request(sc, &cr)) != 0) { 2654 debug(0, "can't get notify event request"); 2655 goto out; 2656 } 2657 sc->ciss_periodic_notify = cr; 2658 cr->cr_complete = ciss_notify_complete; 2659 debug(1, "acquired request %d", cr->cr_tag); 2660 } 2661 2662 /* 2663 * Get a databuffer if we don't already have one, note that the 2664 * adapter command wants a larger buffer than the actual 2665 * structure. 2666 */ 2667 if (cr->cr_data == NULL) { 2668 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2669 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2670 } 2671 2672 /* re-setup the request's command (since we never release it) XXX overkill*/ 2673 ciss_preen_command(cr); 2674 2675 /* (re)build the notify event command */ 2676 cc = CISS_FIND_COMMAND(cr); 2677 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2678 cc->header.address.physical.bus = 0; 2679 cc->header.address.physical.target = 0; 2680 2681 cc->cdb.cdb_length = sizeof(*cnc); 2682 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2683 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2684 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2685 cc->cdb.timeout = 0; /* no timeout, we hope */ 2686 2687 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2688 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 2689 cnc->opcode = CISS_OPCODE_READ; 2690 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 2691 cnc->timeout = 0; /* no timeout, we hope */ 2692 cnc->synchronous = 0; 2693 cnc->ordered = 0; 2694 cnc->seek_to_oldest = 0; 2695 cnc->new_only = 0; 2696 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2697 2698 /* submit the request */ 2699 error = ciss_start(cr); 2700 2701 out: 2702 if (error) { 2703 if (cr != NULL) { 2704 if (cr->cr_data != NULL) 2705 free(cr->cr_data, CISS_MALLOC_CLASS); 2706 ciss_release_request(cr); 2707 } 2708 sc->ciss_periodic_notify = NULL; 2709 debug(0, "can't submit notify event request"); 2710 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2711 } else { 2712 debug(1, "notify event submitted"); 2713 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 2714 } 2715 } 2716 2717 static void 2718 ciss_notify_complete(struct ciss_request *cr) 2719 { 2720 struct ciss_command *cc; 2721 struct ciss_notify *cn; 2722 struct ciss_softc *sc; 2723 int scsi_status; 2724 int command_status; 2725 2726 debug_called(1); 2727 2728 cc = CISS_FIND_COMMAND(cr); 2729 cn = (struct ciss_notify *)cr->cr_data; 2730 sc = cr->cr_sc; 2731 2732 /* 2733 * Report request results, decode status. 2734 */ 2735 ciss_report_request(cr, &command_status, &scsi_status); 2736 2737 /* 2738 * Abort the chain on a fatal error. 2739 * 2740 * XXX which of these are actually errors? 2741 */ 2742 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 2743 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 2744 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 2745 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 2746 ciss_name_command_status(command_status)); 2747 ciss_release_request(cr); 2748 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2749 return; 2750 } 2751 2752 /* 2753 * If the adapter gave us a text message, print it. 2754 */ 2755 if (cn->message[0] != 0) 2756 ciss_printf(sc, "*** %.80s\n", cn->message); 2757 2758 debug(0, "notify event class %d subclass %d detail %d", 2759 cn->class, cn->subclass, cn->detail); 2760 2761 /* 2762 * If there's room, save the event for a user-level tool. 2763 */ 2764 if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) { 2765 sc->ciss_notify[sc->ciss_notify_head] = *cn; 2766 sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS; 2767 } 2768 2769 /* 2770 * Some events are directly of interest to us. 2771 */ 2772 switch (cn->class) { 2773 case CISS_NOTIFY_LOGICAL: 2774 ciss_notify_logical(sc, cn); 2775 break; 2776 case CISS_NOTIFY_PHYSICAL: 2777 ciss_notify_physical(sc, cn); 2778 break; 2779 } 2780 2781 /* 2782 * If the response indicates that the notifier has been aborted, 2783 * release the notifier command. 2784 */ 2785 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 2786 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 2787 (cn->detail == 1)) { 2788 debug(0, "notifier exiting"); 2789 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2790 ciss_release_request(cr); 2791 sc->ciss_periodic_notify = NULL; 2792 wakeup(&sc->ciss_periodic_notify); 2793 } 2794 2795 /* 2796 * Send a new notify event command, if we're not aborting. 2797 */ 2798 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 2799 ciss_notify_event(sc); 2800 } 2801 } 2802 2803 /************************************************************************ 2804 * Abort the Notify Event chain. 2805 * 2806 * Note that we can't just abort the command in progress; we have to 2807 * explicitly issue an Abort Notify Event command in order for the 2808 * adapter to clean up correctly. 2809 * 2810 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 2811 * the chain will not restart itself. 2812 */ 2813 static int 2814 ciss_notify_abort(struct ciss_softc *sc) 2815 { 2816 struct ciss_request *cr; 2817 struct ciss_command *cc; 2818 struct ciss_notify_cdb *cnc; 2819 int error, s, command_status, scsi_status; 2820 2821 debug_called(1); 2822 2823 cr = NULL; 2824 error = 0; 2825 2826 /* verify that there's an outstanding command */ 2827 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2828 goto out; 2829 2830 /* get a command to issue the abort with */ 2831 if ((error = ciss_get_request(sc, &cr))) 2832 goto out; 2833 2834 /* get a buffer for the result */ 2835 cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 2836 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 2837 2838 /* build the CDB */ 2839 cc = CISS_FIND_COMMAND(cr); 2840 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2841 cc->header.address.physical.bus = 0; 2842 cc->header.address.physical.target = 0; 2843 cc->cdb.cdb_length = sizeof(*cnc); 2844 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2845 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2846 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2847 cc->cdb.timeout = 0; /* no timeout, we hope */ 2848 2849 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 2850 bzero(cnc, sizeof(*cnc)); 2851 cnc->opcode = CISS_OPCODE_WRITE; 2852 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 2853 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 2854 2855 ciss_print_request(cr); 2856 2857 /* 2858 * Submit the request and wait for it to complete. 2859 */ 2860 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2861 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 2862 goto out; 2863 } 2864 2865 /* 2866 * Check response. 2867 */ 2868 ciss_report_request(cr, &command_status, &scsi_status); 2869 switch(command_status) { 2870 case CISS_CMD_STATUS_SUCCESS: 2871 break; 2872 case CISS_CMD_STATUS_INVALID_COMMAND: 2873 /* 2874 * Some older adapters don't support the CISS version of this 2875 * command. Fall back to using the BMIC version. 2876 */ 2877 error = ciss_notify_abort_bmic(sc); 2878 if (error != 0) 2879 goto out; 2880 break; 2881 2882 case CISS_CMD_STATUS_TARGET_STATUS: 2883 /* 2884 * This can happen if the adapter thinks there wasn't an outstanding 2885 * Notify Event command but we did. We clean up here. 2886 */ 2887 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 2888 if (sc->ciss_periodic_notify != NULL) 2889 ciss_release_request(sc->ciss_periodic_notify); 2890 error = 0; 2891 goto out; 2892 } 2893 /* FALLTHROUGH */ 2894 2895 default: 2896 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 2897 ciss_name_command_status(command_status)); 2898 error = EIO; 2899 goto out; 2900 } 2901 2902 /* 2903 * Sleep waiting for the notifier command to complete. Note 2904 * that if it doesn't, we may end up in a bad situation, since 2905 * the adapter may deliver it later. Also note that the adapter 2906 * requires the Notify Event command to be cancelled in order to 2907 * maintain internal bookkeeping. 2908 */ 2909 s = splcam(); 2910 while (sc->ciss_periodic_notify != NULL) { 2911 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 2912 if (error == EWOULDBLOCK) { 2913 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 2914 break; 2915 } 2916 } 2917 splx(s); 2918 2919 out: 2920 /* release the cancel request */ 2921 if (cr != NULL) { 2922 if (cr->cr_data != NULL) 2923 free(cr->cr_data, CISS_MALLOC_CLASS); 2924 ciss_release_request(cr); 2925 } 2926 if (error == 0) 2927 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 2928 return(error); 2929 } 2930 2931 /************************************************************************ 2932 * Abort the Notify Event chain using a BMIC command. 2933 */ 2934 static int 2935 ciss_notify_abort_bmic(struct ciss_softc *sc) 2936 { 2937 struct ciss_request *cr; 2938 int error, command_status; 2939 2940 debug_called(1); 2941 2942 cr = NULL; 2943 error = 0; 2944 2945 /* verify that there's an outstanding command */ 2946 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 2947 goto out; 2948 2949 /* 2950 * Build a BMIC command to cancel the Notify on Event command. 2951 * 2952 * Note that we are sending a CISS opcode here. Odd. 2953 */ 2954 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 2955 NULL, 0)) != 0) 2956 goto out; 2957 2958 /* 2959 * Submit the request and wait for it to complete. 2960 */ 2961 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 2962 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 2963 goto out; 2964 } 2965 2966 /* 2967 * Check response. 2968 */ 2969 ciss_report_request(cr, &command_status, NULL); 2970 switch(command_status) { 2971 case CISS_CMD_STATUS_SUCCESS: 2972 break; 2973 default: 2974 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 2975 ciss_name_command_status(command_status)); 2976 error = EIO; 2977 goto out; 2978 } 2979 2980 out: 2981 if (cr != NULL) 2982 ciss_release_request(cr); 2983 return(error); 2984 } 2985 2986 /************************************************************************ 2987 * Handle a notify event relating to the status of a logical drive. 2988 * 2989 * XXX need to be able to defer some of these to properly handle 2990 * calling the "ID Physical drive" command, unless the 'extended' 2991 * drive IDs are always in BIG_MAP format. 2992 */ 2993 static void 2994 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 2995 { 2996 struct ciss_ldrive *ld; 2997 int ostatus; 2998 2999 debug_called(2); 3000 3001 ld = &sc->ciss_logical[cn->data.logical_status.logical_drive]; 3002 3003 switch (cn->subclass) { 3004 case CISS_NOTIFY_LOGICAL_STATUS: 3005 switch (cn->detail) { 3006 case 0: 3007 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3008 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3009 cn->data.logical_status.logical_drive, ld->cl_name, 3010 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3011 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3012 cn->data.logical_status.spare_state, 3013 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3014 3015 /* 3016 * Update our idea of the drive's status. 3017 */ 3018 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3019 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3020 if (ld->cl_lstatus != NULL) 3021 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3022 3023 #if 0 3024 /* 3025 * Have CAM rescan the drive if its status has changed. 3026 */ 3027 if (ostatus != ld->cl_status) 3028 ciss_cam_rescan_target(sc, cn->data.logical_status.logical_drive); 3029 #endif 3030 3031 break; 3032 3033 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3034 ciss_name_device(sc, cn->data.logical_status.logical_drive); 3035 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3036 cn->data.logical_status.logical_drive, ld->cl_name); 3037 ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1); 3038 break; 3039 3040 case 2: 3041 case 3: 3042 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3043 cn->data.rebuild_aborted.logical_drive, 3044 sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name, 3045 (cn->detail == 2) ? "read" : "write"); 3046 break; 3047 } 3048 break; 3049 3050 case CISS_NOTIFY_LOGICAL_ERROR: 3051 if (cn->detail == 0) { 3052 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3053 cn->data.io_error.logical_drive, 3054 sc->ciss_logical[cn->data.io_error.logical_drive].cl_name, 3055 cn->data.io_error.failure_bus, 3056 cn->data.io_error.failure_drive); 3057 /* XXX should we take the drive down at this point, or will we be told? */ 3058 } 3059 break; 3060 3061 case CISS_NOTIFY_LOGICAL_SURFACE: 3062 if (cn->detail == 0) 3063 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3064 cn->data.consistency_completed.logical_drive, 3065 sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name); 3066 break; 3067 } 3068 } 3069 3070 /************************************************************************ 3071 * Handle a notify event relating to the status of a physical drive. 3072 */ 3073 static void 3074 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3075 { 3076 3077 } 3078 3079 /************************************************************************ 3080 * Print a request. 3081 */ 3082 static void 3083 ciss_print_request(struct ciss_request *cr) 3084 { 3085 struct ciss_softc *sc; 3086 struct ciss_command *cc; 3087 int i; 3088 3089 sc = cr->cr_sc; 3090 cc = CISS_FIND_COMMAND(cr); 3091 3092 ciss_printf(sc, "REQUEST @ %p\n", cr); 3093 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3094 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3095 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3096 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3097 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3098 switch(cc->header.address.mode.mode) { 3099 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3100 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3101 ciss_printf(sc, " physical bus %d target %d\n", 3102 cc->header.address.physical.bus, cc->header.address.physical.target); 3103 break; 3104 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3105 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3106 break; 3107 } 3108 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3109 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3110 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3111 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3112 cc->cdb.cdb_length, 3113 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3114 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3115 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3116 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3117 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3118 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3119 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3120 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3121 3122 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3123 /* XXX print error info */ 3124 } else { 3125 /* since we don't use chained s/g, don't support it here */ 3126 for (i = 0; i < cc->header.sg_in_list; i++) { 3127 if ((i % 4) == 0) 3128 ciss_printf(sc, " "); 3129 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3130 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3131 printf("\n"); 3132 } 3133 } 3134 } 3135 3136 /************************************************************************ 3137 * Print information about the status of a logical drive. 3138 */ 3139 static void 3140 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3141 { 3142 int bus, target, i; 3143 3144 if (ld->cl_lstatus == NULL) { 3145 printf("does not exist\n"); 3146 return; 3147 } 3148 3149 /* print drive status */ 3150 switch(ld->cl_lstatus->status) { 3151 case CISS_LSTATUS_OK: 3152 printf("online\n"); 3153 break; 3154 case CISS_LSTATUS_INTERIM_RECOVERY: 3155 printf("in interim recovery mode\n"); 3156 break; 3157 case CISS_LSTATUS_READY_RECOVERY: 3158 printf("ready to begin recovery\n"); 3159 break; 3160 case CISS_LSTATUS_RECOVERING: 3161 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3162 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3163 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3164 bus, target, ld->cl_lstatus->blocks_to_recover); 3165 break; 3166 case CISS_LSTATUS_EXPANDING: 3167 printf("being expanded, %u blocks remaining\n", 3168 ld->cl_lstatus->blocks_to_recover); 3169 break; 3170 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3171 printf("queued for expansion\n"); 3172 break; 3173 case CISS_LSTATUS_FAILED: 3174 printf("queued for expansion\n"); 3175 break; 3176 case CISS_LSTATUS_WRONG_PDRIVE: 3177 printf("wrong physical drive inserted\n"); 3178 break; 3179 case CISS_LSTATUS_MISSING_PDRIVE: 3180 printf("missing a needed physical drive\n"); 3181 break; 3182 case CISS_LSTATUS_BECOMING_READY: 3183 printf("becoming ready\n"); 3184 break; 3185 } 3186 3187 /* print failed physical drives */ 3188 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3189 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3190 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3191 if (bus == -1) 3192 continue; 3193 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3194 ld->cl_lstatus->drive_failure_map[i]); 3195 } 3196 } 3197 3198 #ifdef CISS_DEBUG 3199 /************************************************************************ 3200 * Print information about the controller/driver. 3201 */ 3202 static void 3203 ciss_print_adapter(struct ciss_softc *sc) 3204 { 3205 int i; 3206 3207 ciss_printf(sc, "ADAPTER:\n"); 3208 for (i = 0; i < CISSQ_COUNT; i++) { 3209 ciss_printf(sc, "%s %d/%d\n", 3210 i == 0 ? "free" : 3211 i == 1 ? "busy" : "complete", 3212 sc->ciss_qstat[i].q_length, 3213 sc->ciss_qstat[i].q_max); 3214 } 3215 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3216 ciss_printf(sc, "notify_head/tail %d/%d\n", 3217 sc->ciss_notify_head, sc->ciss_notify_tail); 3218 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3219 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3220 3221 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 3222 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3223 ciss_print_ldrive(sc, sc->ciss_logical + i); 3224 } 3225 3226 for (i = 1; i < sc->ciss_max_requests; i++) 3227 ciss_print_request(sc->ciss_request + i); 3228 3229 } 3230 3231 void ciss_print0(void); 3232 3233 /* DDB hook */ 3234 void 3235 ciss_print0(void) 3236 { 3237 struct ciss_softc *sc; 3238 3239 sc = devclass_get_softc(devclass_find("ciss"), 0); 3240 if (sc == NULL) { 3241 printf("no ciss controllers\n"); 3242 } else { 3243 ciss_print_adapter(sc); 3244 } 3245 } 3246 #endif 3247 3248 /************************************************************************ 3249 * Return a name for a logical drive status value. 3250 */ 3251 static const char * 3252 ciss_name_ldrive_status(int status) 3253 { 3254 switch (status) { 3255 case CISS_LSTATUS_OK: 3256 return("OK"); 3257 case CISS_LSTATUS_FAILED: 3258 return("failed"); 3259 case CISS_LSTATUS_NOT_CONFIGURED: 3260 return("not configured"); 3261 case CISS_LSTATUS_INTERIM_RECOVERY: 3262 return("interim recovery"); 3263 case CISS_LSTATUS_READY_RECOVERY: 3264 return("ready for recovery"); 3265 case CISS_LSTATUS_RECOVERING: 3266 return("recovering"); 3267 case CISS_LSTATUS_WRONG_PDRIVE: 3268 return("wrong physical drive inserted"); 3269 case CISS_LSTATUS_MISSING_PDRIVE: 3270 return("missing physical drive"); 3271 case CISS_LSTATUS_EXPANDING: 3272 return("expanding"); 3273 case CISS_LSTATUS_BECOMING_READY: 3274 return("becoming ready"); 3275 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3276 return("queued for expansion"); 3277 } 3278 return("unknown status"); 3279 } 3280 3281 /************************************************************************ 3282 * Return an online/offline/nonexistent value for a logical drive 3283 * status value. 3284 */ 3285 static int 3286 ciss_decode_ldrive_status(int status) 3287 { 3288 switch(status) { 3289 case CISS_LSTATUS_NOT_CONFIGURED: 3290 return(CISS_LD_NONEXISTENT); 3291 3292 case CISS_LSTATUS_OK: 3293 case CISS_LSTATUS_INTERIM_RECOVERY: 3294 case CISS_LSTATUS_READY_RECOVERY: 3295 case CISS_LSTATUS_RECOVERING: 3296 case CISS_LSTATUS_EXPANDING: 3297 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3298 return(CISS_LD_ONLINE); 3299 3300 case CISS_LSTATUS_FAILED: 3301 case CISS_LSTATUS_WRONG_PDRIVE: 3302 case CISS_LSTATUS_MISSING_PDRIVE: 3303 case CISS_LSTATUS_BECOMING_READY: 3304 default: 3305 return(CISS_LD_OFFLINE); 3306 } 3307 } 3308 3309 3310 /************************************************************************ 3311 * Return a name for a logical drive's organisation. 3312 */ 3313 static const char * 3314 ciss_name_ldrive_org(int org) 3315 { 3316 switch(org) { 3317 case CISS_LDRIVE_RAID0: 3318 return("RAID 0"); 3319 case CISS_LDRIVE_RAID1: 3320 return("RAID 1"); 3321 case CISS_LDRIVE_RAID4: 3322 return("RAID 4"); 3323 case CISS_LDRIVE_RAID5: 3324 return("RAID 5"); 3325 } 3326 return("unkown"); 3327 } 3328 3329 /************************************************************************ 3330 * Return a name for a command status value. 3331 */ 3332 static const char * 3333 ciss_name_command_status(int status) 3334 { 3335 switch(status) { 3336 case CISS_CMD_STATUS_SUCCESS: 3337 return("success"); 3338 case CISS_CMD_STATUS_TARGET_STATUS: 3339 return("target status"); 3340 case CISS_CMD_STATUS_DATA_UNDERRUN: 3341 return("data underrun"); 3342 case CISS_CMD_STATUS_DATA_OVERRUN: 3343 return("data overrun"); 3344 case CISS_CMD_STATUS_INVALID_COMMAND: 3345 return("invalid command"); 3346 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3347 return("protocol error"); 3348 case CISS_CMD_STATUS_HARDWARE_ERROR: 3349 return("hardware error"); 3350 case CISS_CMD_STATUS_CONNECTION_LOST: 3351 return("connection lost"); 3352 case CISS_CMD_STATUS_ABORTED: 3353 return("aborted"); 3354 case CISS_CMD_STATUS_ABORT_FAILED: 3355 return("abort failed"); 3356 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3357 return("unsolicited abort"); 3358 case CISS_CMD_STATUS_TIMEOUT: 3359 return("timeout"); 3360 case CISS_CMD_STATUS_UNABORTABLE: 3361 return("unabortable"); 3362 } 3363 return("unknown status"); 3364 } 3365 3366 /************************************************************************ 3367 * Handle an open on the control device. 3368 */ 3369 static int 3370 ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p) 3371 { 3372 struct ciss_softc *sc; 3373 3374 debug_called(1); 3375 3376 sc = (struct ciss_softc *)dev->si_drv1; 3377 3378 /* we might want to veto if someone already has us open */ 3379 3380 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3381 return(0); 3382 } 3383 3384 /************************************************************************ 3385 * Handle the last close on the control device. 3386 */ 3387 static int 3388 ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p) 3389 { 3390 struct ciss_softc *sc; 3391 3392 debug_called(1); 3393 3394 sc = (struct ciss_softc *)dev->si_drv1; 3395 3396 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3397 return (0); 3398 } 3399 3400 /******************************************************************************** 3401 * Handle adapter-specific control operations. 3402 * 3403 * Note that the API here is compatible with the Linux driver, in order to 3404 * simplify the porting of Compaq's userland tools. 3405 */ 3406 static int 3407 ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3408 { 3409 struct ciss_softc *sc; 3410 int error; 3411 3412 debug_called(1); 3413 3414 sc = (struct ciss_softc *)dev->si_drv1; 3415 error = 0; 3416 3417 switch(cmd) { 3418 case CCISS_GETPCIINFO: 3419 { 3420 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 3421 3422 pis->bus = pci_get_bus(sc->ciss_dev); 3423 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3424 pis->board_id = pci_get_devid(sc->ciss_dev); 3425 3426 break; 3427 } 3428 3429 case CCISS_GETINTINFO: 3430 { 3431 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3432 3433 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3434 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3435 3436 break; 3437 } 3438 3439 case CCISS_SETINTINFO: 3440 { 3441 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 3442 3443 if ((cis->delay == 0) && (cis->count == 0)) { 3444 error = EINVAL; 3445 break; 3446 } 3447 3448 /* 3449 * XXX apparently this is only safe if the controller is idle, 3450 * we should suspend it before doing this. 3451 */ 3452 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3453 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3454 3455 if (ciss_update_config(sc)) 3456 error = EIO; 3457 3458 /* XXX resume the controller here */ 3459 break; 3460 } 3461 3462 case CCISS_GETNODENAME: 3463 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 3464 sizeof(NodeName_type)); 3465 break; 3466 3467 case CCISS_SETNODENAME: 3468 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 3469 sizeof(NodeName_type)); 3470 if (ciss_update_config(sc)) 3471 error = EIO; 3472 break; 3473 3474 case CCISS_GETHEARTBEAT: 3475 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 3476 break; 3477 3478 case CCISS_GETBUSTYPES: 3479 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 3480 break; 3481 3482 case CCISS_GETFIRMVER: 3483 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 3484 sizeof(FirmwareVer_type)); 3485 break; 3486 3487 case CCISS_GETDRIVERVER: 3488 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 3489 break; 3490 3491 case CCISS_REVALIDVOLS: 3492 /* 3493 * This is a bit ugly; to do it "right" we really need 3494 * to find any disks that have changed, kick CAM off them, 3495 * then rescan only these disks. It'd be nice if they 3496 * a) told us which disk(s) they were going to play with, 3497 * and b) which ones had arrived. 8( 3498 */ 3499 break; 3500 3501 case CCISS_PASSTHRU: 3502 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 3503 break; 3504 3505 default: 3506 debug(0, "unknown ioctl 0x%lx", cmd); 3507 3508 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 3509 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 3510 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 3511 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 3512 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 3513 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 3514 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 3515 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 3516 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 3517 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 3518 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 3519 3520 error = ENOIOCTL; 3521 break; 3522 } 3523 3524 return(error); 3525 } 3526