1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 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 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 87 #include <cam/cam.h> 88 #include <cam/cam_ccb.h> 89 #include <cam/cam_periph.h> 90 #include <cam/cam_sim.h> 91 #include <cam/cam_xpt_sim.h> 92 #include <cam/scsi/scsi_all.h> 93 #include <cam/scsi/scsi_message.h> 94 95 #include <machine/clock.h> 96 #include <machine/bus_memio.h> 97 #include <machine/bus.h> 98 #include <machine/endian.h> 99 #include <machine/resource.h> 100 #include <sys/rman.h> 101 102 #include <dev/pci/pcireg.h> 103 #include <dev/pci/pcivar.h> 104 105 #include <dev/ciss/cissreg.h> 106 #include <dev/ciss/cissvar.h> 107 #include <dev/ciss/cissio.h> 108 109 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_wait_adapter(struct ciss_softc *sc); 121 static int ciss_flush_adapter(struct ciss_softc *sc); 122 static int ciss_init_requests(struct ciss_softc *sc); 123 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 124 int nseg, int error); 125 static int ciss_identify_adapter(struct ciss_softc *sc); 126 static int ciss_init_logical(struct ciss_softc *sc); 127 static int ciss_init_physical(struct ciss_softc *sc); 128 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 129 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 130 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_update_config(struct ciss_softc *sc); 132 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 133 static void ciss_free(struct ciss_softc *sc); 134 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 135 static void ciss_kill_notify_thread(struct ciss_softc *sc); 136 137 /* request submission/completion */ 138 static int ciss_start(struct ciss_request *cr); 139 static void ciss_done(struct ciss_softc *sc); 140 static void ciss_intr(void *arg); 141 static void ciss_complete(struct ciss_softc *sc); 142 static int ciss_report_request(struct ciss_request *cr, int *command_status, 143 int *scsi_status); 144 static int ciss_synch_request(struct ciss_request *cr, int timeout); 145 static int ciss_poll_request(struct ciss_request *cr, int timeout); 146 static int ciss_wait_request(struct ciss_request *cr, int timeout); 147 #if 0 148 static int ciss_abort_request(struct ciss_request *cr); 149 #endif 150 151 /* request queueing */ 152 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 153 static void ciss_preen_command(struct ciss_request *cr); 154 static void ciss_release_request(struct ciss_request *cr); 155 156 /* request helpers */ 157 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 158 int opcode, void **bufp, size_t bufsize); 159 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 160 161 /* DMA map/unmap */ 162 static int ciss_map_request(struct ciss_request *cr); 163 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 164 int nseg, int error); 165 static void ciss_unmap_request(struct ciss_request *cr); 166 167 /* CAM interface */ 168 static int ciss_cam_init(struct ciss_softc *sc); 169 static void ciss_cam_rescan_target(struct ciss_softc *sc, 170 int bus, int target); 171 static void ciss_cam_rescan_all(struct ciss_softc *sc); 172 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 173 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 174 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 175 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 176 static void ciss_cam_poll(struct cam_sim *sim); 177 static void ciss_cam_complete(struct ciss_request *cr); 178 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 179 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 180 int bus, int target); 181 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 182 183 /* periodic status monitoring */ 184 static void ciss_periodic(void *arg); 185 static void ciss_notify_event(struct ciss_softc *sc); 186 static void ciss_notify_complete(struct ciss_request *cr); 187 static int ciss_notify_abort(struct ciss_softc *sc); 188 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 189 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 190 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 191 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 192 193 /* debugging output */ 194 static void ciss_print_request(struct ciss_request *cr); 195 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 196 static const char *ciss_name_ldrive_status(int status); 197 static int ciss_decode_ldrive_status(int status); 198 static const char *ciss_name_ldrive_org(int org); 199 static const char *ciss_name_command_status(int status); 200 201 /* 202 * PCI bus interface. 203 */ 204 static device_method_t ciss_methods[] = { 205 /* Device interface */ 206 DEVMETHOD(device_probe, ciss_probe), 207 DEVMETHOD(device_attach, ciss_attach), 208 DEVMETHOD(device_detach, ciss_detach), 209 DEVMETHOD(device_shutdown, ciss_shutdown), 210 { 0, 0 } 211 }; 212 213 static driver_t ciss_pci_driver = { 214 "ciss", 215 ciss_methods, 216 sizeof(struct ciss_softc) 217 }; 218 219 static devclass_t ciss_devclass; 220 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 221 222 /* 223 * Control device interface. 224 */ 225 static d_open_t ciss_open; 226 static d_close_t ciss_close; 227 static d_ioctl_t ciss_ioctl; 228 229 static struct cdevsw ciss_cdevsw = { 230 .d_version = D_VERSION, 231 .d_flags = D_NEEDGIANT, 232 .d_open = ciss_open, 233 .d_close = ciss_close, 234 .d_ioctl = ciss_ioctl, 235 .d_name = "ciss", 236 }; 237 238 /* 239 * This tunable can be set at boot time and controls whether physical devices 240 * that are marked hidden by the firmware should be exposed anyways. 241 */ 242 static unsigned int ciss_expose_hidden_physical = 0; 243 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 244 245 /************************************************************************ 246 * CISS adapters amazingly don't have a defined programming interface 247 * value. (One could say some very despairing things about PCI and 248 * people just not getting the general idea.) So we are forced to 249 * stick with matching against subvendor/subdevice, and thus have to 250 * be updated for every new CISS adapter that appears. 251 */ 252 #define CISS_BOARD_SA5 (1<<0) 253 #define CISS_BOARD_SA5B (1<<1) 254 255 static struct 256 { 257 u_int16_t subvendor; 258 u_int16_t subdevice; 259 int flags; 260 char *desc; 261 } ciss_vendor_data[] = { 262 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 263 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 264 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 265 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 266 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 267 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 268 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 269 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 270 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 271 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 272 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 273 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 274 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 275 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 276 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 277 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 278 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array" }, 280 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 281 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 282 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 287 { 0, 0, 0, NULL } 288 }; 289 290 /************************************************************************ 291 * Find a match for the device in our list of known adapters. 292 */ 293 static int 294 ciss_lookup(device_t dev) 295 { 296 int i; 297 298 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 299 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 300 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 301 return(i); 302 } 303 return(-1); 304 } 305 306 /************************************************************************ 307 * Match a known CISS adapter. 308 */ 309 static int 310 ciss_probe(device_t dev) 311 { 312 int i; 313 314 i = ciss_lookup(dev); 315 if (i != -1) { 316 device_set_desc(dev, ciss_vendor_data[i].desc); 317 return(BUS_PROBE_DEFAULT); 318 } 319 return(ENOENT); 320 } 321 322 /************************************************************************ 323 * Attach the driver to this adapter. 324 */ 325 static int 326 ciss_attach(device_t dev) 327 { 328 struct ciss_softc *sc; 329 int i, error; 330 331 debug_called(1); 332 333 #ifdef CISS_DEBUG 334 /* print structure/union sizes */ 335 debug_struct(ciss_command); 336 debug_struct(ciss_header); 337 debug_union(ciss_device_address); 338 debug_struct(ciss_cdb); 339 debug_struct(ciss_report_cdb); 340 debug_struct(ciss_notify_cdb); 341 debug_struct(ciss_notify); 342 debug_struct(ciss_message_cdb); 343 debug_struct(ciss_error_info_pointer); 344 debug_struct(ciss_error_info); 345 debug_struct(ciss_sg_entry); 346 debug_struct(ciss_config_table); 347 debug_struct(ciss_bmic_cdb); 348 debug_struct(ciss_bmic_id_ldrive); 349 debug_struct(ciss_bmic_id_lstatus); 350 debug_struct(ciss_bmic_id_table); 351 debug_struct(ciss_bmic_id_pdrive); 352 debug_struct(ciss_bmic_blink_pdrive); 353 debug_struct(ciss_bmic_flush_cache); 354 debug_const(CISS_MAX_REQUESTS); 355 debug_const(CISS_MAX_LOGICAL); 356 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 357 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 358 debug_const(CISS_COMMAND_ALLOC_SIZE); 359 debug_const(CISS_COMMAND_SG_LENGTH); 360 361 debug_type(cciss_pci_info_struct); 362 debug_type(cciss_coalint_struct); 363 debug_type(cciss_coalint_struct); 364 debug_type(NodeName_type); 365 debug_type(NodeName_type); 366 debug_type(Heartbeat_type); 367 debug_type(BusTypes_type); 368 debug_type(FirmwareVer_type); 369 debug_type(DriverVer_type); 370 debug_type(IOCTL_Command_struct); 371 #endif 372 373 sc = device_get_softc(dev); 374 sc->ciss_dev = dev; 375 376 /* 377 * Work out adapter type. 378 */ 379 i = ciss_lookup(dev); 380 if (i < 0) { 381 ciss_printf(sc, "unknown adapter type\n"); 382 error = ENXIO; 383 goto out; 384 } 385 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 386 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 387 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 388 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 389 } else { 390 /* really an error on our part */ 391 ciss_printf(sc, "unable to determine hardware type\n"); 392 error = ENXIO; 393 goto out; 394 } 395 396 /* 397 * Do PCI-specific init. 398 */ 399 if ((error = ciss_init_pci(sc)) != 0) 400 goto out; 401 402 /* 403 * Initialise driver queues. 404 */ 405 ciss_initq_free(sc); 406 ciss_initq_busy(sc); 407 ciss_initq_complete(sc); 408 ciss_initq_notify(sc); 409 410 /* 411 * Initialise command/request pool. 412 */ 413 if ((error = ciss_init_requests(sc)) != 0) 414 goto out; 415 416 /* 417 * Get adapter information. 418 */ 419 if ((error = ciss_identify_adapter(sc)) != 0) 420 goto out; 421 422 /* 423 * Find all the physical devices. 424 */ 425 if ((error = ciss_init_physical(sc)) != 0) 426 goto out; 427 428 /* 429 * Build our private table of logical devices. 430 */ 431 if ((error = ciss_init_logical(sc)) != 0) 432 goto out; 433 434 /* 435 * Enable interrupts so that the CAM scan can complete. 436 */ 437 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 438 439 /* 440 * Initialise the CAM interface. 441 */ 442 if ((error = ciss_cam_init(sc)) != 0) 443 goto out; 444 445 /* 446 * Start the heartbeat routine and event chain. 447 */ 448 ciss_periodic(sc); 449 450 /* 451 * Create the control device. 452 */ 453 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 454 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 455 "ciss%d", device_get_unit(sc->ciss_dev)); 456 sc->ciss_dev_t->si_drv1 = sc; 457 458 /* 459 * The adapter is running; synchronous commands can now sleep 460 * waiting for an interrupt to signal completion. 461 */ 462 sc->ciss_flags |= CISS_FLAG_RUNNING; 463 464 ciss_spawn_notify_thread(sc); 465 466 error = 0; 467 out: 468 if (error != 0) 469 ciss_free(sc); 470 return(error); 471 } 472 473 /************************************************************************ 474 * Detach the driver from this adapter. 475 */ 476 static int 477 ciss_detach(device_t dev) 478 { 479 struct ciss_softc *sc = device_get_softc(dev); 480 481 debug_called(1); 482 483 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 484 return (EBUSY); 485 486 /* flush adapter cache */ 487 ciss_flush_adapter(sc); 488 489 /* release all resources */ 490 ciss_free(sc); 491 492 return(0); 493 } 494 495 /************************************************************************ 496 * Prepare adapter for system shutdown. 497 */ 498 static int 499 ciss_shutdown(device_t dev) 500 { 501 struct ciss_softc *sc = device_get_softc(dev); 502 503 debug_called(1); 504 505 /* flush adapter cache */ 506 ciss_flush_adapter(sc); 507 508 return(0); 509 } 510 511 /************************************************************************ 512 * Perform PCI-specific attachment actions. 513 */ 514 static int 515 ciss_init_pci(struct ciss_softc *sc) 516 { 517 uintptr_t cbase, csize, cofs; 518 int error; 519 520 debug_called(1); 521 522 /* 523 * Allocate register window first (we need this to find the config 524 * struct). 525 */ 526 error = ENXIO; 527 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 528 if ((sc->ciss_regs_resource = 529 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 530 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 531 ciss_printf(sc, "can't allocate register window\n"); 532 return(ENXIO); 533 } 534 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 535 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 536 537 /* 538 * Find the BAR holding the config structure. If it's not the one 539 * we already mapped for registers, map it too. 540 */ 541 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 542 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 543 if ((sc->ciss_cfg_resource = 544 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 545 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 546 ciss_printf(sc, "can't allocate config window\n"); 547 return(ENXIO); 548 } 549 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 550 csize = rman_get_end(sc->ciss_cfg_resource) - 551 rman_get_start(sc->ciss_cfg_resource) + 1; 552 } else { 553 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 554 csize = rman_get_end(sc->ciss_regs_resource) - 555 rman_get_start(sc->ciss_regs_resource) + 1; 556 } 557 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 558 559 /* 560 * Use the base/size/offset values we just calculated to 561 * sanity-check the config structure. If it's OK, point to it. 562 */ 563 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 564 ciss_printf(sc, "config table outside window\n"); 565 return(ENXIO); 566 } 567 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 568 debug(1, "config struct at %p", sc->ciss_cfg); 569 570 /* 571 * Validate the config structure. If we supported other transport 572 * methods, we could select amongst them at this point in time. 573 */ 574 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 575 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 576 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 577 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 578 return(ENXIO); 579 } 580 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 581 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 582 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 583 sc->ciss_cfg->valence); 584 return(ENXIO); 585 } 586 587 /* 588 * Put the board into simple mode, and tell it we're using the low 589 * 4GB of RAM. Set the default interrupt coalescing options. 590 */ 591 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 592 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 593 return(ENXIO); 594 } 595 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 596 sc->ciss_cfg->command_physlimit = 0; 597 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 598 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 599 600 #ifdef __i386__ 601 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 602 #endif 603 604 if (ciss_update_config(sc)) { 605 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 606 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 607 return(ENXIO); 608 } 609 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 610 ciss_printf(sc, 611 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 612 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 613 return(ENXIO); 614 } 615 616 /* 617 * Wait for the adapter to come ready. 618 */ 619 if ((error = ciss_wait_adapter(sc)) != 0) 620 return(error); 621 622 /* 623 * Turn off interrupts before we go routing anything. 624 */ 625 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 626 627 /* 628 * Allocate and set up our interrupt. 629 */ 630 sc->ciss_irq_rid = 0; 631 if ((sc->ciss_irq_resource = 632 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 633 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 634 ciss_printf(sc, "can't allocate interrupt\n"); 635 return(ENXIO); 636 } 637 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 638 INTR_TYPE_CAM|INTR_ENTROPY, ciss_intr, sc, 639 &sc->ciss_intr)) { 640 ciss_printf(sc, "can't set up interrupt\n"); 641 return(ENXIO); 642 } 643 644 /* 645 * Allocate the parent bus DMA tag appropriate for our PCI 646 * interface. 647 * 648 * Note that "simple" adapters can only address within a 32-bit 649 * span. 650 */ 651 if (bus_dma_tag_create(NULL, /* parent */ 652 1, 0, /* alignment, boundary */ 653 BUS_SPACE_MAXADDR, /* lowaddr */ 654 BUS_SPACE_MAXADDR, /* highaddr */ 655 NULL, NULL, /* filter, filterarg */ 656 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 657 CISS_COMMAND_SG_LENGTH, /* nsegments */ 658 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 659 BUS_DMA_ALLOCNOW, /* flags */ 660 NULL, NULL, /* lockfunc, lockarg */ 661 &sc->ciss_parent_dmat)) { 662 ciss_printf(sc, "can't allocate parent DMA tag\n"); 663 return(ENOMEM); 664 } 665 666 /* 667 * Create DMA tag for mapping buffers into adapter-addressable 668 * space. 669 */ 670 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 671 1, 0, /* alignment, boundary */ 672 BUS_SPACE_MAXADDR, /* lowaddr */ 673 BUS_SPACE_MAXADDR, /* highaddr */ 674 NULL, NULL, /* filter, filterarg */ 675 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 676 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 677 0, /* flags */ 678 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 679 &sc->ciss_buffer_dmat)) { 680 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 681 return(ENOMEM); 682 } 683 return(0); 684 } 685 686 /************************************************************************ 687 * Wait for the adapter to come ready. 688 */ 689 static int 690 ciss_wait_adapter(struct ciss_softc *sc) 691 { 692 int i; 693 694 debug_called(1); 695 696 /* 697 * Wait for the adapter to come ready. 698 */ 699 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 700 ciss_printf(sc, "waiting for adapter to come ready...\n"); 701 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 702 DELAY(1000000); /* one second */ 703 if (i > 30) { 704 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 705 return(EIO); 706 } 707 } 708 } 709 return(0); 710 } 711 712 /************************************************************************ 713 * Flush the adapter cache. 714 */ 715 static int 716 ciss_flush_adapter(struct ciss_softc *sc) 717 { 718 struct ciss_request *cr; 719 struct ciss_bmic_flush_cache *cbfc; 720 int error, command_status; 721 722 debug_called(1); 723 724 cr = NULL; 725 cbfc = NULL; 726 727 /* 728 * Build a BMIC request to flush the cache. We don't disable 729 * it, as we may be going to do more I/O (eg. we are emulating 730 * the Synchronise Cache command). 731 */ 732 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 733 error = ENOMEM; 734 goto out; 735 } 736 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 737 (void **)&cbfc, sizeof(*cbfc))) != 0) 738 goto out; 739 740 /* 741 * Submit the request and wait for it to complete. 742 */ 743 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 744 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 745 goto out; 746 } 747 748 /* 749 * Check response. 750 */ 751 ciss_report_request(cr, &command_status, NULL); 752 switch(command_status) { 753 case CISS_CMD_STATUS_SUCCESS: 754 break; 755 default: 756 ciss_printf(sc, "error flushing cache (%s)\n", 757 ciss_name_command_status(command_status)); 758 error = EIO; 759 goto out; 760 } 761 762 out: 763 if (cbfc != NULL) 764 free(cbfc, CISS_MALLOC_CLASS); 765 if (cr != NULL) 766 ciss_release_request(cr); 767 return(error); 768 } 769 770 /************************************************************************ 771 * Allocate memory for the adapter command structures, initialise 772 * the request structures. 773 * 774 * Note that the entire set of commands are allocated in a single 775 * contiguous slab. 776 */ 777 static int 778 ciss_init_requests(struct ciss_softc *sc) 779 { 780 struct ciss_request *cr; 781 int i; 782 783 debug_called(1); 784 785 /* 786 * Calculate the number of request structures/commands we are 787 * going to provide for this adapter. 788 */ 789 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 790 791 if (bootverbose) 792 ciss_printf(sc, "using %d of %d available commands\n", 793 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 794 795 /* 796 * Create the DMA tag for commands. 797 */ 798 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 799 1, 0, /* alignment, boundary */ 800 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 801 BUS_SPACE_MAXADDR, /* highaddr */ 802 NULL, NULL, /* filter, filterarg */ 803 CISS_COMMAND_ALLOC_SIZE * 804 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 805 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 806 BUS_DMA_ALLOCNOW, /* flags */ 807 NULL, NULL, /* lockfunc, lockarg */ 808 &sc->ciss_command_dmat)) { 809 ciss_printf(sc, "can't allocate command DMA tag\n"); 810 return(ENOMEM); 811 } 812 /* 813 * Allocate memory and make it available for DMA. 814 */ 815 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 816 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 817 ciss_printf(sc, "can't allocate command memory\n"); 818 return(ENOMEM); 819 } 820 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 821 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 822 ciss_command_map_helper, sc, 0); 823 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 824 825 /* 826 * Set up the request and command structures, push requests onto 827 * the free queue. 828 */ 829 for (i = 1; i < sc->ciss_max_requests; i++) { 830 cr = &sc->ciss_request[i]; 831 cr->cr_sc = sc; 832 cr->cr_tag = i; 833 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 834 ciss_enqueue_free(cr); 835 } 836 return(0); 837 } 838 839 static void 840 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 841 { 842 struct ciss_softc *sc = (struct ciss_softc *)arg; 843 844 sc->ciss_command_phys = segs->ds_addr; 845 } 846 847 /************************************************************************ 848 * Identify the adapter, print some information about it. 849 */ 850 static int 851 ciss_identify_adapter(struct ciss_softc *sc) 852 { 853 struct ciss_request *cr; 854 int error, command_status; 855 856 debug_called(1); 857 858 cr = NULL; 859 860 /* 861 * Get a request, allocate storage for the adapter data. 862 */ 863 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 864 (void **)&sc->ciss_id, 865 sizeof(*sc->ciss_id))) != 0) 866 goto out; 867 868 /* 869 * Submit the request and wait for it to complete. 870 */ 871 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 872 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 873 goto out; 874 } 875 876 /* 877 * Check response. 878 */ 879 ciss_report_request(cr, &command_status, NULL); 880 switch(command_status) { 881 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 882 break; 883 case CISS_CMD_STATUS_DATA_UNDERRUN: 884 case CISS_CMD_STATUS_DATA_OVERRUN: 885 ciss_printf(sc, "data over/underrun reading adapter information\n"); 886 default: 887 ciss_printf(sc, "error reading adapter information (%s)\n", 888 ciss_name_command_status(command_status)); 889 error = EIO; 890 goto out; 891 } 892 893 /* sanity-check reply */ 894 if (!sc->ciss_id->big_map_supported) { 895 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 896 error = ENXIO; 897 goto out; 898 } 899 900 #if 0 901 /* XXX later revisions may not need this */ 902 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 903 #endif 904 905 /* XXX only really required for old 5300 adapters? */ 906 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 907 908 /* print information */ 909 if (bootverbose) { 910 #if 0 /* XXX proxy volumes??? */ 911 ciss_printf(sc, " %d logical drive%s configured\n", 912 sc->ciss_id->configured_logical_drives, 913 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 914 #endif 915 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 916 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 917 918 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 919 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 920 ciss_printf(sc, " supported I/O methods 0x%b\n", 921 sc->ciss_cfg->supported_methods, 922 "\20\1READY\2simple\3performant\4MEMQ\n"); 923 ciss_printf(sc, " active I/O method 0x%b\n", 924 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 925 ciss_printf(sc, " 4G page base 0x%08x\n", 926 sc->ciss_cfg->command_physlimit); 927 ciss_printf(sc, " interrupt coalesce delay %dus\n", 928 sc->ciss_cfg->interrupt_coalesce_delay); 929 ciss_printf(sc, " interrupt coalesce count %d\n", 930 sc->ciss_cfg->interrupt_coalesce_count); 931 ciss_printf(sc, " max outstanding commands %d\n", 932 sc->ciss_cfg->max_outstanding_commands); 933 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 934 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 935 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 936 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 937 } 938 939 out: 940 if (error) { 941 if (sc->ciss_id != NULL) { 942 free(sc->ciss_id, CISS_MALLOC_CLASS); 943 sc->ciss_id = NULL; 944 } 945 } 946 if (cr != NULL) 947 ciss_release_request(cr); 948 return(error); 949 } 950 951 /************************************************************************ 952 * Helper routine for generating a list of logical and physical luns. 953 */ 954 static struct ciss_lun_report * 955 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 956 { 957 struct ciss_request *cr; 958 struct ciss_command *cc; 959 struct ciss_report_cdb *crc; 960 struct ciss_lun_report *cll; 961 int command_status; 962 int report_size; 963 int error = 0; 964 965 debug_called(1); 966 967 cr = NULL; 968 cll = NULL; 969 970 /* 971 * Get a request, allocate storage for the address list. 972 */ 973 if ((error = ciss_get_request(sc, &cr)) != 0) 974 goto out; 975 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 976 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 977 ciss_printf(sc, "can't allocate memory for lun report\n"); 978 error = ENOMEM; 979 goto out; 980 } 981 982 /* 983 * Build the Report Logical/Physical LUNs command. 984 */ 985 cc = CISS_FIND_COMMAND(cr); 986 cr->cr_data = cll; 987 cr->cr_length = report_size; 988 cr->cr_flags = CISS_REQ_DATAIN; 989 990 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 991 cc->header.address.physical.bus = 0; 992 cc->header.address.physical.target = 0; 993 cc->cdb.cdb_length = sizeof(*crc); 994 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 995 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 996 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 997 cc->cdb.timeout = 30; /* XXX better suggestions? */ 998 999 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1000 bzero(crc, sizeof(*crc)); 1001 crc->opcode = opcode; 1002 crc->length = htonl(report_size); /* big-endian field */ 1003 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1004 1005 /* 1006 * Submit the request and wait for it to complete. (timeout 1007 * here should be much greater than above) 1008 */ 1009 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1010 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1011 goto out; 1012 } 1013 1014 /* 1015 * Check response. Note that data over/underrun is OK. 1016 */ 1017 ciss_report_request(cr, &command_status, NULL); 1018 switch(command_status) { 1019 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1020 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1021 break; 1022 case CISS_CMD_STATUS_DATA_OVERRUN: 1023 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1024 CISS_MAX_LOGICAL); 1025 break; 1026 default: 1027 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1028 ciss_name_command_status(command_status)); 1029 error = EIO; 1030 goto out; 1031 } 1032 ciss_release_request(cr); 1033 cr = NULL; 1034 1035 out: 1036 if (cr != NULL) 1037 ciss_release_request(cr); 1038 if (error && cll != NULL) { 1039 free(cll, CISS_MALLOC_CLASS); 1040 cll = NULL; 1041 } 1042 return(cll); 1043 } 1044 1045 /************************************************************************ 1046 * Find logical drives on the adapter. 1047 */ 1048 static int 1049 ciss_init_logical(struct ciss_softc *sc) 1050 { 1051 struct ciss_lun_report *cll; 1052 int error = 0, i, j; 1053 int ndrives; 1054 1055 debug_called(1); 1056 1057 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1058 CISS_MAX_LOGICAL); 1059 if (cll == NULL) { 1060 error = ENXIO; 1061 goto out; 1062 } 1063 1064 /* sanity-check reply */ 1065 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1066 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1067 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1068 ndrives, CISS_MAX_LOGICAL); 1069 error = ENXIO; 1070 goto out; 1071 } 1072 1073 /* 1074 * Save logical drive information. 1075 */ 1076 if (bootverbose) { 1077 ciss_printf(sc, "%d logical drive%s\n", 1078 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1079 } 1080 1081 sc->ciss_logical = 1082 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1083 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1084 if (sc->ciss_logical == NULL) { 1085 error = ENXIO; 1086 goto out; 1087 } 1088 1089 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1090 sc->ciss_logical[i] = 1091 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1092 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1093 if (sc->ciss_logical[i] == NULL) { 1094 error = ENXIO; 1095 goto out; 1096 } 1097 1098 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1099 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1100 } 1101 1102 1103 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1104 if (i < ndrives) { 1105 struct ciss_ldrive *ld; 1106 int bus, target; 1107 1108 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1109 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1110 ld = &sc->ciss_logical[bus][target]; 1111 1112 ld->cl_address = cll->lun[i]; 1113 ld->cl_controller = &sc->ciss_controllers[bus]; 1114 if (ciss_identify_logical(sc, ld) != 0) 1115 continue; 1116 /* 1117 * If the drive has had media exchanged, we should bring it online. 1118 */ 1119 if (ld->cl_lstatus->media_exchanged) 1120 ciss_accept_media(sc, ld); 1121 1122 } 1123 } 1124 1125 out: 1126 if (cll != NULL) 1127 free(cll, CISS_MALLOC_CLASS); 1128 return(error); 1129 } 1130 1131 static int 1132 ciss_init_physical(struct ciss_softc *sc) 1133 { 1134 struct ciss_lun_report *cll; 1135 int error = 0, i; 1136 int nphys; 1137 int bus, target; 1138 1139 debug_called(1); 1140 1141 bus = 0; 1142 target = 0; 1143 1144 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1145 CISS_MAX_PHYSICAL); 1146 if (cll == NULL) { 1147 error = ENXIO; 1148 goto out; 1149 } 1150 1151 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1152 1153 if (bootverbose) { 1154 ciss_printf(sc, "%d physical device%s\n", 1155 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1156 } 1157 1158 /* 1159 * Figure out the bus mapping. 1160 * Logical buses include both the local logical bus for local arrays and 1161 * proxy buses for remote arrays. Physical buses are numbered by the 1162 * controller and represent physical buses that hold physical devices. 1163 * We shift these bus numbers so that everything fits into a single flat 1164 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1165 * numbers, and the physical bus numbers are shifted to be above that. 1166 * This results in the various driver arrays being indexed as follows: 1167 * 1168 * ciss_controllers[] - indexed by logical bus 1169 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1170 * being shifted by 32. 1171 * ciss_logical[][] - indexed by logical bus 1172 * ciss_physical[][] - indexed by physical bus 1173 * 1174 * XXX This is getting more and more hackish. CISS really doesn't play 1175 * well with a standard SCSI model; devices are addressed via magic 1176 * cookies, not via b/t/l addresses. Since there is no way to store 1177 * the cookie in the CAM device object, we have to keep these lookup 1178 * tables handy so that the devices can be found quickly at the cost 1179 * of wasting memory and having a convoluted lookup scheme. This 1180 * driver should probably be converted to block interface. 1181 */ 1182 /* 1183 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1184 * controller. A proxy controller is another physical controller 1185 * behind the primary PCI controller. We need to know about this 1186 * so that BMIC commands can be properly targeted. There can be 1187 * proxy controllers attached to a single PCI controller, so 1188 * find the highest numbered one so the array can be properly 1189 * sized. 1190 */ 1191 sc->ciss_max_logical_bus = 1; 1192 for (i = 0; i < nphys; i++) { 1193 if (cll->lun[i].physical.extra_address == 0) { 1194 bus = cll->lun[i].physical.bus; 1195 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1196 } else { 1197 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1198 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1199 } 1200 } 1201 1202 sc->ciss_controllers = 1203 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1204 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1205 1206 if (sc->ciss_controllers == NULL) { 1207 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1208 error = ENOMEM; 1209 goto out; 1210 } 1211 1212 /* setup a map of controller addresses */ 1213 for (i = 0; i < nphys; i++) { 1214 if (cll->lun[i].physical.extra_address == 0) { 1215 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1216 } 1217 } 1218 1219 sc->ciss_physical = 1220 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1221 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1222 if (sc->ciss_physical == NULL) { 1223 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1224 error = ENOMEM; 1225 goto out; 1226 } 1227 1228 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1229 sc->ciss_physical[i] = 1230 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1231 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1232 if (sc->ciss_physical[i] == NULL) { 1233 ciss_printf(sc, "Could not allocate memory for target map\n"); 1234 error = ENOMEM; 1235 goto out; 1236 } 1237 } 1238 1239 ciss_filter_physical(sc, cll); 1240 1241 out: 1242 if (cll != NULL) 1243 free(cll, CISS_MALLOC_CLASS); 1244 1245 return(error); 1246 } 1247 1248 static int 1249 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1250 { 1251 u_int32_t ea; 1252 int i, nphys; 1253 int bus, target; 1254 1255 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1256 for (i = 0; i < nphys; i++) { 1257 if (cll->lun[i].physical.extra_address == 0) 1258 continue; 1259 1260 /* 1261 * Filter out devices that we don't want. Level 3 LUNs could 1262 * probably be supported, but the docs don't give enough of a 1263 * hint to know how. 1264 * 1265 * The mode field of the physical address is likely set to have 1266 * hard disks masked out. Honor it unless the user has overridden 1267 * us with the tunable. We also munge the inquiry data for these 1268 * disks so that they only show up as passthrough devices. Keeping 1269 * them visible in this fashion is useful for doing things like 1270 * flashing firmware. 1271 */ 1272 ea = cll->lun[i].physical.extra_address; 1273 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1274 (CISS_EXTRA_MODE2(ea) == 0x3)) 1275 continue; 1276 if ((ciss_expose_hidden_physical == 0) && 1277 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1278 continue; 1279 1280 /* 1281 * Note: CISS firmware numbers physical busses starting at '1', not 1282 * '0'. This numbering is internal to the firmware and is only 1283 * used as a hint here. 1284 */ 1285 bus = CISS_EXTRA_BUS2(ea) - 1; 1286 target = CISS_EXTRA_TARGET2(ea); 1287 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1288 sc->ciss_physical[bus][target].cp_online = 1; 1289 } 1290 1291 return (0); 1292 } 1293 1294 static int 1295 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1296 { 1297 struct ciss_request *cr; 1298 struct ciss_command *cc; 1299 struct scsi_inquiry *inq; 1300 int error; 1301 int command_status; 1302 1303 cr = NULL; 1304 1305 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1306 1307 if ((error = ciss_get_request(sc, &cr)) != 0) 1308 goto out; 1309 1310 cc = CISS_FIND_COMMAND(cr); 1311 cr->cr_data = &ld->cl_geometry; 1312 cr->cr_length = sizeof(ld->cl_geometry); 1313 cr->cr_flags = CISS_REQ_DATAIN; 1314 1315 cc->header.address = ld->cl_address; 1316 cc->cdb.cdb_length = 6; 1317 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1318 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1319 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1320 cc->cdb.timeout = 30; 1321 1322 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1323 inq->opcode = INQUIRY; 1324 inq->byte2 = SI_EVPD; 1325 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1326 inq->length = sizeof(ld->cl_geometry); 1327 1328 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1329 ciss_printf(sc, "error getting geometry (%d)\n", error); 1330 goto out; 1331 } 1332 1333 ciss_report_request(cr, &command_status, NULL); 1334 switch(command_status) { 1335 case CISS_CMD_STATUS_SUCCESS: 1336 case CISS_CMD_STATUS_DATA_UNDERRUN: 1337 break; 1338 case CISS_CMD_STATUS_DATA_OVERRUN: 1339 ciss_printf(sc, "WARNING: Data overrun\n"); 1340 break; 1341 default: 1342 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1343 ciss_name_command_status(command_status)); 1344 break; 1345 } 1346 1347 out: 1348 if (cr != NULL) 1349 ciss_release_request(cr); 1350 return(error); 1351 } 1352 /************************************************************************ 1353 * Identify a logical drive, initialise state related to it. 1354 */ 1355 static int 1356 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1357 { 1358 struct ciss_request *cr; 1359 struct ciss_command *cc; 1360 struct ciss_bmic_cdb *cbc; 1361 int error, command_status; 1362 1363 debug_called(1); 1364 1365 cr = NULL; 1366 1367 /* 1368 * Build a BMIC request to fetch the drive ID. 1369 */ 1370 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1371 (void **)&ld->cl_ldrive, 1372 sizeof(*ld->cl_ldrive))) != 0) 1373 goto out; 1374 cc = CISS_FIND_COMMAND(cr); 1375 cc->header.address = *ld->cl_controller; /* target controller */ 1376 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1377 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1378 1379 /* 1380 * Submit the request and wait for it to complete. 1381 */ 1382 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1383 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1384 goto out; 1385 } 1386 1387 /* 1388 * Check response. 1389 */ 1390 ciss_report_request(cr, &command_status, NULL); 1391 switch(command_status) { 1392 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1393 break; 1394 case CISS_CMD_STATUS_DATA_UNDERRUN: 1395 case CISS_CMD_STATUS_DATA_OVERRUN: 1396 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1397 default: 1398 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1399 ciss_name_command_status(command_status)); 1400 error = EIO; 1401 goto out; 1402 } 1403 ciss_release_request(cr); 1404 cr = NULL; 1405 1406 /* 1407 * Build a CISS BMIC command to get the logical drive status. 1408 */ 1409 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1410 goto out; 1411 1412 /* 1413 * Get the logical drive geometry. 1414 */ 1415 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1416 goto out; 1417 1418 /* 1419 * Print the drive's basic characteristics. 1420 */ 1421 if (bootverbose) { 1422 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1423 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1424 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1425 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1426 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1427 ld->cl_ldrive->block_size)); 1428 1429 ciss_print_ldrive(sc, ld); 1430 } 1431 out: 1432 if (error != 0) { 1433 /* make the drive not-exist */ 1434 ld->cl_status = CISS_LD_NONEXISTENT; 1435 if (ld->cl_ldrive != NULL) { 1436 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1437 ld->cl_ldrive = NULL; 1438 } 1439 if (ld->cl_lstatus != NULL) { 1440 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1441 ld->cl_lstatus = NULL; 1442 } 1443 } 1444 if (cr != NULL) 1445 ciss_release_request(cr); 1446 1447 return(error); 1448 } 1449 1450 /************************************************************************ 1451 * Get status for a logical drive. 1452 * 1453 * XXX should we also do this in response to Test Unit Ready? 1454 */ 1455 static int 1456 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1457 { 1458 struct ciss_request *cr; 1459 struct ciss_command *cc; 1460 struct ciss_bmic_cdb *cbc; 1461 int error, command_status; 1462 1463 /* 1464 * Build a CISS BMIC command to get the logical drive status. 1465 */ 1466 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1467 (void **)&ld->cl_lstatus, 1468 sizeof(*ld->cl_lstatus))) != 0) 1469 goto out; 1470 cc = CISS_FIND_COMMAND(cr); 1471 cc->header.address = *ld->cl_controller; /* target controller */ 1472 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1473 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1474 1475 /* 1476 * Submit the request and wait for it to complete. 1477 */ 1478 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1479 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1480 goto out; 1481 } 1482 1483 /* 1484 * Check response. 1485 */ 1486 ciss_report_request(cr, &command_status, NULL); 1487 switch(command_status) { 1488 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1489 break; 1490 case CISS_CMD_STATUS_DATA_UNDERRUN: 1491 case CISS_CMD_STATUS_DATA_OVERRUN: 1492 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1493 default: 1494 ciss_printf(sc, "error reading logical drive status (%s)\n", 1495 ciss_name_command_status(command_status)); 1496 error = EIO; 1497 goto out; 1498 } 1499 1500 /* 1501 * Set the drive's summary status based on the returned status. 1502 * 1503 * XXX testing shows that a failed JBOD drive comes back at next 1504 * boot in "queued for expansion" mode. WTF? 1505 */ 1506 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1507 1508 out: 1509 if (cr != NULL) 1510 ciss_release_request(cr); 1511 return(error); 1512 } 1513 1514 /************************************************************************ 1515 * Notify the adapter of a config update. 1516 */ 1517 static int 1518 ciss_update_config(struct ciss_softc *sc) 1519 { 1520 int i; 1521 1522 debug_called(1); 1523 1524 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1525 for (i = 0; i < 1000; i++) { 1526 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1527 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1528 return(0); 1529 } 1530 DELAY(1000); 1531 } 1532 return(1); 1533 } 1534 1535 /************************************************************************ 1536 * Accept new media into a logical drive. 1537 * 1538 * XXX The drive has previously been offline; it would be good if we 1539 * could make sure it's not open right now. 1540 */ 1541 static int 1542 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1543 { 1544 struct ciss_request *cr; 1545 struct ciss_command *cc; 1546 struct ciss_bmic_cdb *cbc; 1547 int command_status; 1548 int error = 0, ldrive; 1549 1550 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1551 1552 debug(0, "bringing logical drive %d back online"); 1553 1554 /* 1555 * Build a CISS BMIC command to bring the drive back online. 1556 */ 1557 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1558 NULL, 0)) != 0) 1559 goto out; 1560 cc = CISS_FIND_COMMAND(cr); 1561 cc->header.address = *ld->cl_controller; /* target controller */ 1562 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1563 cbc->log_drive = ldrive; 1564 1565 /* 1566 * Submit the request and wait for it to complete. 1567 */ 1568 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1569 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1570 goto out; 1571 } 1572 1573 /* 1574 * Check response. 1575 */ 1576 ciss_report_request(cr, &command_status, NULL); 1577 switch(command_status) { 1578 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1579 /* we should get a logical drive status changed event here */ 1580 break; 1581 default: 1582 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1583 ciss_name_command_status(command_status)); 1584 break; 1585 } 1586 1587 out: 1588 if (cr != NULL) 1589 ciss_release_request(cr); 1590 return(error); 1591 } 1592 1593 /************************************************************************ 1594 * Release adapter resources. 1595 */ 1596 static void 1597 ciss_free(struct ciss_softc *sc) 1598 { 1599 struct ciss_request *cr; 1600 int i; 1601 1602 debug_called(1); 1603 1604 /* we're going away */ 1605 sc->ciss_flags |= CISS_FLAG_ABORTING; 1606 1607 /* terminate the periodic heartbeat routine */ 1608 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1609 1610 /* cancel the Event Notify chain */ 1611 ciss_notify_abort(sc); 1612 1613 ciss_kill_notify_thread(sc); 1614 1615 /* remove the control device */ 1616 if (sc->ciss_dev_t != NULL) 1617 destroy_dev(sc->ciss_dev_t); 1618 1619 /* free the controller data */ 1620 if (sc->ciss_id != NULL) 1621 free(sc->ciss_id, CISS_MALLOC_CLASS); 1622 1623 /* release I/O resources */ 1624 if (sc->ciss_regs_resource != NULL) 1625 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1626 sc->ciss_regs_rid, sc->ciss_regs_resource); 1627 if (sc->ciss_cfg_resource != NULL) 1628 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1629 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1630 if (sc->ciss_intr != NULL) 1631 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1632 if (sc->ciss_irq_resource != NULL) 1633 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1634 sc->ciss_irq_rid, sc->ciss_irq_resource); 1635 1636 /* destroy DMA tags */ 1637 if (sc->ciss_parent_dmat) 1638 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1639 1640 while ((cr = ciss_dequeue_free(sc)) != NULL) 1641 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1642 if (sc->ciss_buffer_dmat) 1643 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1644 1645 /* destroy command memory and DMA tag */ 1646 if (sc->ciss_command != NULL) { 1647 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1648 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1649 } 1650 if (sc->ciss_command_dmat) 1651 bus_dma_tag_destroy(sc->ciss_command_dmat); 1652 1653 /* disconnect from CAM */ 1654 if (sc->ciss_cam_sim) { 1655 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1656 if (sc->ciss_cam_sim[i]) { 1657 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1658 cam_sim_free(sc->ciss_cam_sim[i], 0); 1659 } 1660 } 1661 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1662 CISS_PHYSICAL_BASE; i++) { 1663 if (sc->ciss_cam_sim[i]) { 1664 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1665 cam_sim_free(sc->ciss_cam_sim[i], 0); 1666 } 1667 } 1668 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1669 } 1670 if (sc->ciss_cam_devq) 1671 cam_simq_free(sc->ciss_cam_devq); 1672 1673 if (sc->ciss_logical) { 1674 for (i = 0; i < sc->ciss_max_logical_bus; i++) 1675 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1676 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1677 } 1678 1679 if (sc->ciss_physical) { 1680 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1681 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1682 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1683 } 1684 1685 if (sc->ciss_controllers) 1686 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1687 } 1688 1689 /************************************************************************ 1690 * Give a command to the adapter. 1691 * 1692 * Note that this uses the simple transport layer directly. If we 1693 * want to add support for other layers, we'll need a switch of some 1694 * sort. 1695 * 1696 * Note that the simple transport layer has no way of refusing a 1697 * command; we only have as many request structures as the adapter 1698 * supports commands, so we don't have to check (this presumes that 1699 * the adapter can handle commands as fast as we throw them at it). 1700 */ 1701 static int 1702 ciss_start(struct ciss_request *cr) 1703 { 1704 struct ciss_command *cc; /* XXX debugging only */ 1705 int error; 1706 1707 cc = CISS_FIND_COMMAND(cr); 1708 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1709 1710 /* 1711 * Map the request's data. 1712 */ 1713 if ((error = ciss_map_request(cr))) 1714 return(error); 1715 1716 #if 0 1717 ciss_print_request(cr); 1718 #endif 1719 1720 return(0); 1721 } 1722 1723 /************************************************************************ 1724 * Fetch completed request(s) from the adapter, queue them for 1725 * completion handling. 1726 * 1727 * Note that this uses the simple transport layer directly. If we 1728 * want to add support for other layers, we'll need a switch of some 1729 * sort. 1730 * 1731 * Note that the simple transport mechanism does not require any 1732 * reentrancy protection; the OPQ read is atomic. If there is a 1733 * chance of a race with something else that might move the request 1734 * off the busy list, then we will have to lock against that 1735 * (eg. timeouts, etc.) 1736 */ 1737 static void 1738 ciss_done(struct ciss_softc *sc) 1739 { 1740 struct ciss_request *cr; 1741 struct ciss_command *cc; 1742 u_int32_t tag, index; 1743 int complete; 1744 1745 debug_called(3); 1746 1747 /* 1748 * Loop quickly taking requests from the adapter and moving them 1749 * from the busy queue to the completed queue. 1750 */ 1751 complete = 0; 1752 for (;;) { 1753 1754 /* see if the OPQ contains anything */ 1755 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1756 break; 1757 1758 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1759 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1760 break; 1761 index = tag >> 2; 1762 debug(2, "completed command %d%s", index, 1763 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1764 if (index >= sc->ciss_max_requests) { 1765 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1766 continue; 1767 } 1768 cr = &(sc->ciss_request[index]); 1769 cc = CISS_FIND_COMMAND(cr); 1770 cc->header.host_tag = tag; /* not updated by adapter */ 1771 if (ciss_remove_busy(cr)) { 1772 /* assume this is garbage out of the adapter */ 1773 ciss_printf(sc, "completed nonbusy request %d\n", index); 1774 } else { 1775 ciss_enqueue_complete(cr); 1776 } 1777 complete = 1; 1778 } 1779 1780 /* 1781 * Invoke completion processing. If we can defer this out of 1782 * interrupt context, that'd be good. 1783 */ 1784 if (complete) 1785 ciss_complete(sc); 1786 } 1787 1788 /************************************************************************ 1789 * Take an interrupt from the adapter. 1790 */ 1791 static void 1792 ciss_intr(void *arg) 1793 { 1794 struct ciss_softc *sc = (struct ciss_softc *)arg; 1795 1796 /* 1797 * The only interrupt we recognise indicates that there are 1798 * entries in the outbound post queue. 1799 */ 1800 ciss_done(sc); 1801 } 1802 1803 /************************************************************************ 1804 * Process completed requests. 1805 * 1806 * Requests can be completed in three fashions: 1807 * 1808 * - by invoking a callback function (cr_complete is non-null) 1809 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1810 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1811 */ 1812 static void 1813 ciss_complete(struct ciss_softc *sc) 1814 { 1815 struct ciss_request *cr; 1816 1817 debug_called(2); 1818 1819 /* 1820 * Loop taking requests off the completed queue and performing 1821 * completion processing on them. 1822 */ 1823 for (;;) { 1824 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1825 break; 1826 ciss_unmap_request(cr); 1827 1828 /* 1829 * If the request has a callback, invoke it. 1830 */ 1831 if (cr->cr_complete != NULL) { 1832 cr->cr_complete(cr); 1833 continue; 1834 } 1835 1836 /* 1837 * If someone is sleeping on this request, wake them up. 1838 */ 1839 if (cr->cr_flags & CISS_REQ_SLEEP) { 1840 cr->cr_flags &= ~CISS_REQ_SLEEP; 1841 wakeup(cr); 1842 continue; 1843 } 1844 1845 /* 1846 * If someone is polling this request for completion, signal. 1847 */ 1848 if (cr->cr_flags & CISS_REQ_POLL) { 1849 cr->cr_flags &= ~CISS_REQ_POLL; 1850 continue; 1851 } 1852 1853 /* 1854 * Give up and throw the request back on the free queue. This 1855 * should never happen; resources will probably be lost. 1856 */ 1857 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1858 ciss_enqueue_free(cr); 1859 } 1860 } 1861 1862 /************************************************************************ 1863 * Report on the completion status of a request, and pass back SCSI 1864 * and command status values. 1865 */ 1866 static int 1867 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1868 { 1869 struct ciss_command *cc; 1870 struct ciss_error_info *ce; 1871 1872 debug_called(2); 1873 1874 cc = CISS_FIND_COMMAND(cr); 1875 ce = (struct ciss_error_info *)&(cc->sg[0]); 1876 1877 /* 1878 * We don't consider data under/overrun an error for the Report 1879 * Logical/Physical LUNs commands. 1880 */ 1881 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1882 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1883 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1884 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1885 debug(2, "ignoring irrelevant under/overrun error"); 1886 } 1887 1888 /* 1889 * Check the command's error bit, if clear, there's no status and 1890 * everything is OK. 1891 */ 1892 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1893 if (scsi_status != NULL) 1894 *scsi_status = SCSI_STATUS_OK; 1895 if (command_status != NULL) 1896 *command_status = CISS_CMD_STATUS_SUCCESS; 1897 return(0); 1898 } else { 1899 if (command_status != NULL) 1900 *command_status = ce->command_status; 1901 if (scsi_status != NULL) { 1902 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1903 *scsi_status = ce->scsi_status; 1904 } else { 1905 *scsi_status = -1; 1906 } 1907 } 1908 if (bootverbose) 1909 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1910 ce->command_status, ciss_name_command_status(ce->command_status), 1911 ce->scsi_status); 1912 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1913 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1914 ce->additional_error_info.invalid_command.offense_size, 1915 ce->additional_error_info.invalid_command.offense_offset, 1916 ce->additional_error_info.invalid_command.offense_value); 1917 } 1918 } 1919 #if 0 1920 ciss_print_request(cr); 1921 #endif 1922 return(1); 1923 } 1924 1925 /************************************************************************ 1926 * Issue a request and don't return until it's completed. 1927 * 1928 * Depending on adapter status, we may poll or sleep waiting for 1929 * completion. 1930 */ 1931 static int 1932 ciss_synch_request(struct ciss_request *cr, int timeout) 1933 { 1934 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1935 return(ciss_wait_request(cr, timeout)); 1936 } else { 1937 return(ciss_poll_request(cr, timeout)); 1938 } 1939 } 1940 1941 /************************************************************************ 1942 * Issue a request and poll for completion. 1943 * 1944 * Timeout in milliseconds. 1945 */ 1946 static int 1947 ciss_poll_request(struct ciss_request *cr, int timeout) 1948 { 1949 int error; 1950 1951 debug_called(2); 1952 1953 cr->cr_flags |= CISS_REQ_POLL; 1954 if ((error = ciss_start(cr)) != 0) 1955 return(error); 1956 1957 do { 1958 ciss_done(cr->cr_sc); 1959 if (!(cr->cr_flags & CISS_REQ_POLL)) 1960 return(0); 1961 DELAY(1000); 1962 } while (timeout-- >= 0); 1963 return(EWOULDBLOCK); 1964 } 1965 1966 /************************************************************************ 1967 * Issue a request and sleep waiting for completion. 1968 * 1969 * Timeout in milliseconds. Note that a spurious wakeup will reset 1970 * the timeout. 1971 */ 1972 static int 1973 ciss_wait_request(struct ciss_request *cr, int timeout) 1974 { 1975 int s, error; 1976 1977 debug_called(2); 1978 1979 cr->cr_flags |= CISS_REQ_SLEEP; 1980 if ((error = ciss_start(cr)) != 0) 1981 return(error); 1982 1983 s = splcam(); 1984 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 1985 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 1986 } 1987 splx(s); 1988 return(error); 1989 } 1990 1991 #if 0 1992 /************************************************************************ 1993 * Abort a request. Note that a potential exists here to race the 1994 * request being completed; the caller must deal with this. 1995 */ 1996 static int 1997 ciss_abort_request(struct ciss_request *ar) 1998 { 1999 struct ciss_request *cr; 2000 struct ciss_command *cc; 2001 struct ciss_message_cdb *cmc; 2002 int error; 2003 2004 debug_called(1); 2005 2006 /* get a request */ 2007 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2008 return(error); 2009 2010 /* build the abort command */ 2011 cc = CISS_FIND_COMMAND(cr); 2012 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2013 cc->header.address.physical.target = 0; 2014 cc->header.address.physical.bus = 0; 2015 cc->cdb.cdb_length = sizeof(*cmc); 2016 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2017 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2018 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2019 cc->cdb.timeout = 30; 2020 2021 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2022 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2023 cmc->type = CISS_MESSAGE_ABORT_TASK; 2024 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2025 2026 /* 2027 * Send the request and wait for a response. If we believe we 2028 * aborted the request OK, clear the flag that indicates it's 2029 * running. 2030 */ 2031 error = ciss_synch_request(cr, 35 * 1000); 2032 if (!error) 2033 error = ciss_report_request(cr, NULL, NULL); 2034 ciss_release_request(cr); 2035 2036 return(error); 2037 } 2038 #endif 2039 2040 2041 /************************************************************************ 2042 * Fetch and initialise a request 2043 */ 2044 static int 2045 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2046 { 2047 struct ciss_request *cr; 2048 2049 debug_called(2); 2050 2051 /* 2052 * Get a request and clean it up. 2053 */ 2054 if ((cr = ciss_dequeue_free(sc)) == NULL) 2055 return(ENOMEM); 2056 2057 cr->cr_data = NULL; 2058 cr->cr_flags = 0; 2059 cr->cr_complete = NULL; 2060 cr->cr_private = NULL; 2061 2062 ciss_preen_command(cr); 2063 *crp = cr; 2064 return(0); 2065 } 2066 2067 static void 2068 ciss_preen_command(struct ciss_request *cr) 2069 { 2070 struct ciss_command *cc; 2071 u_int32_t cmdphys; 2072 2073 /* 2074 * Clean up the command structure. 2075 * 2076 * Note that we set up the error_info structure here, since the 2077 * length can be overwritten by any command. 2078 */ 2079 cc = CISS_FIND_COMMAND(cr); 2080 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2081 cc->header.sg_total = 0; 2082 cc->header.host_tag = cr->cr_tag << 2; 2083 cc->header.host_tag_zeroes = 0; 2084 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2085 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2086 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2087 } 2088 2089 /************************************************************************ 2090 * Release a request to the free list. 2091 */ 2092 static void 2093 ciss_release_request(struct ciss_request *cr) 2094 { 2095 struct ciss_softc *sc; 2096 2097 debug_called(2); 2098 2099 sc = cr->cr_sc; 2100 2101 /* release the request to the free queue */ 2102 ciss_requeue_free(cr); 2103 } 2104 2105 /************************************************************************ 2106 * Allocate a request that will be used to send a BMIC command. Do some 2107 * of the common setup here to avoid duplicating it everywhere else. 2108 */ 2109 static int 2110 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2111 int opcode, void **bufp, size_t bufsize) 2112 { 2113 struct ciss_request *cr; 2114 struct ciss_command *cc; 2115 struct ciss_bmic_cdb *cbc; 2116 void *buf; 2117 int error; 2118 int dataout; 2119 2120 debug_called(2); 2121 2122 cr = NULL; 2123 buf = NULL; 2124 2125 /* 2126 * Get a request. 2127 */ 2128 if ((error = ciss_get_request(sc, &cr)) != 0) 2129 goto out; 2130 2131 /* 2132 * Allocate data storage if requested, determine the data direction. 2133 */ 2134 dataout = 0; 2135 if ((bufsize > 0) && (bufp != NULL)) { 2136 if (*bufp == NULL) { 2137 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2138 error = ENOMEM; 2139 goto out; 2140 } 2141 } else { 2142 buf = *bufp; 2143 dataout = 1; /* we are given a buffer, so we are writing */ 2144 } 2145 } 2146 2147 /* 2148 * Build a CISS BMIC command to get the logical drive ID. 2149 */ 2150 cr->cr_data = buf; 2151 cr->cr_length = bufsize; 2152 if (!dataout) 2153 cr->cr_flags = CISS_REQ_DATAIN; 2154 2155 cc = CISS_FIND_COMMAND(cr); 2156 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2157 cc->header.address.physical.bus = 0; 2158 cc->header.address.physical.target = 0; 2159 cc->cdb.cdb_length = sizeof(*cbc); 2160 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2161 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2162 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2163 cc->cdb.timeout = 0; 2164 2165 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2166 bzero(cbc, sizeof(*cbc)); 2167 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2168 cbc->bmic_opcode = opcode; 2169 cbc->size = htons((u_int16_t)bufsize); 2170 2171 out: 2172 if (error) { 2173 if (cr != NULL) 2174 ciss_release_request(cr); 2175 } else { 2176 *crp = cr; 2177 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2178 *bufp = buf; 2179 } 2180 return(error); 2181 } 2182 2183 /************************************************************************ 2184 * Handle a command passed in from userspace. 2185 */ 2186 static int 2187 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2188 { 2189 struct ciss_request *cr; 2190 struct ciss_command *cc; 2191 struct ciss_error_info *ce; 2192 int error = 0; 2193 2194 debug_called(1); 2195 2196 cr = NULL; 2197 2198 /* 2199 * Get a request. 2200 */ 2201 if ((error = ciss_get_request(sc, &cr)) != 0) 2202 goto out; 2203 cc = CISS_FIND_COMMAND(cr); 2204 2205 /* 2206 * Allocate an in-kernel databuffer if required, copy in user data. 2207 */ 2208 cr->cr_length = ioc->buf_size; 2209 if (ioc->buf_size > 0) { 2210 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2211 error = ENOMEM; 2212 goto out; 2213 } 2214 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2215 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2216 goto out; 2217 } 2218 } 2219 2220 /* 2221 * Build the request based on the user command. 2222 */ 2223 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2224 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2225 2226 /* XXX anything else to populate here? */ 2227 2228 /* 2229 * Run the command. 2230 */ 2231 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2232 debug(0, "request failed - %d", error); 2233 goto out; 2234 } 2235 2236 /* 2237 * Check to see if the command succeeded. 2238 */ 2239 ce = (struct ciss_error_info *)&(cc->sg[0]); 2240 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2241 bzero(ce, sizeof(*ce)); 2242 2243 /* 2244 * Copy the results back to the user. 2245 */ 2246 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2247 if ((ioc->buf_size > 0) && 2248 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2249 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2250 goto out; 2251 } 2252 2253 /* done OK */ 2254 error = 0; 2255 2256 out: 2257 if ((cr != NULL) && (cr->cr_data != NULL)) 2258 free(cr->cr_data, CISS_MALLOC_CLASS); 2259 if (cr != NULL) 2260 ciss_release_request(cr); 2261 return(error); 2262 } 2263 2264 /************************************************************************ 2265 * Map a request into bus-visible space, initialise the scatter/gather 2266 * list. 2267 */ 2268 static int 2269 ciss_map_request(struct ciss_request *cr) 2270 { 2271 struct ciss_softc *sc; 2272 int error = 0; 2273 2274 debug_called(2); 2275 2276 sc = cr->cr_sc; 2277 2278 /* check that mapping is necessary */ 2279 if (cr->cr_flags & CISS_REQ_MAPPED) 2280 return(0); 2281 2282 cr->cr_flags |= CISS_REQ_MAPPED; 2283 2284 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2285 BUS_DMASYNC_PREWRITE); 2286 2287 if (cr->cr_data != NULL) { 2288 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2289 cr->cr_data, cr->cr_length, 2290 ciss_request_map_helper, cr, 0); 2291 if (error != 0) 2292 return (error); 2293 } else { 2294 /* 2295 * Post the command to the adapter. 2296 */ 2297 ciss_enqueue_busy(cr); 2298 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2299 } 2300 2301 return(0); 2302 } 2303 2304 static void 2305 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2306 { 2307 struct ciss_command *cc; 2308 struct ciss_request *cr; 2309 struct ciss_softc *sc; 2310 int i; 2311 2312 debug_called(2); 2313 2314 cr = (struct ciss_request *)arg; 2315 sc = cr->cr_sc; 2316 cc = CISS_FIND_COMMAND(cr); 2317 2318 for (i = 0; i < nseg; i++) { 2319 cc->sg[i].address = segs[i].ds_addr; 2320 cc->sg[i].length = segs[i].ds_len; 2321 cc->sg[i].extension = 0; 2322 } 2323 /* we leave the s/g table entirely within the command */ 2324 cc->header.sg_in_list = nseg; 2325 cc->header.sg_total = nseg; 2326 2327 if (cr->cr_flags & CISS_REQ_DATAIN) 2328 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2329 if (cr->cr_flags & CISS_REQ_DATAOUT) 2330 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2331 2332 /* 2333 * Post the command to the adapter. 2334 */ 2335 ciss_enqueue_busy(cr); 2336 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2337 } 2338 2339 /************************************************************************ 2340 * Unmap a request from bus-visible space. 2341 */ 2342 static void 2343 ciss_unmap_request(struct ciss_request *cr) 2344 { 2345 struct ciss_softc *sc; 2346 2347 debug_called(2); 2348 2349 sc = cr->cr_sc; 2350 2351 /* check that unmapping is necessary */ 2352 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2353 return; 2354 2355 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2356 BUS_DMASYNC_POSTWRITE); 2357 2358 if (cr->cr_data == NULL) 2359 goto out; 2360 2361 if (cr->cr_flags & CISS_REQ_DATAIN) 2362 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2363 if (cr->cr_flags & CISS_REQ_DATAOUT) 2364 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2365 2366 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2367 out: 2368 cr->cr_flags &= ~CISS_REQ_MAPPED; 2369 } 2370 2371 /************************************************************************ 2372 * Attach the driver to CAM. 2373 * 2374 * We put all the logical drives on a single SCSI bus. 2375 */ 2376 static int 2377 ciss_cam_init(struct ciss_softc *sc) 2378 { 2379 int i, maxbus; 2380 2381 debug_called(1); 2382 2383 /* 2384 * Allocate a devq. We can reuse this for the masked physical 2385 * devices if we decide to export these as well. 2386 */ 2387 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2388 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2389 return(ENOMEM); 2390 } 2391 2392 /* 2393 * Create a SIM. 2394 * 2395 * This naturally wastes a bit of memory. The alternative is to allocate 2396 * and register each bus as it is found, and then track them on a linked 2397 * list. Unfortunately, the driver has a few places where it needs to 2398 * look up the SIM based solely on bus number, and it's unclear whether 2399 * a list traversal would work for these situations. 2400 */ 2401 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2402 CISS_PHYSICAL_BASE); 2403 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2404 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2405 if (sc->ciss_cam_sim == NULL) { 2406 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2407 return(ENOMEM); 2408 } 2409 2410 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2411 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2412 "ciss", sc, 2413 device_get_unit(sc->ciss_dev), 2414 sc->ciss_max_requests - 2, 2415 1, 2416 sc->ciss_cam_devq)) == NULL) { 2417 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2418 return(ENOMEM); 2419 } 2420 2421 /* 2422 * Register bus with this SIM. 2423 */ 2424 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2425 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2426 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2427 return (ENXIO); 2428 } 2429 } 2430 } 2431 2432 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2433 CISS_PHYSICAL_BASE; i++) { 2434 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2435 "ciss", sc, 2436 device_get_unit(sc->ciss_dev), 2437 sc->ciss_max_requests - 2, 2438 1, 2439 sc->ciss_cam_devq)) == NULL) { 2440 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2441 return (ENOMEM); 2442 } 2443 2444 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2445 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2446 return (ENXIO); 2447 } 2448 } 2449 2450 /* 2451 * Initiate a rescan of the bus. 2452 */ 2453 ciss_cam_rescan_all(sc); 2454 2455 return(0); 2456 } 2457 2458 /************************************************************************ 2459 * Initiate a rescan of the 'logical devices' SIM 2460 */ 2461 static void 2462 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2463 { 2464 struct cam_path *path; 2465 union ccb *ccb; 2466 2467 debug_called(1); 2468 2469 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2470 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2471 return; 2472 } 2473 2474 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2475 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2476 ciss_printf(sc, "rescan failed (can't create path)\n"); 2477 free(ccb, M_TEMP); 2478 return; 2479 } 2480 2481 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2482 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2483 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2484 ccb->crcn.flags = CAM_FLAG_NONE; 2485 xpt_action(ccb); 2486 2487 /* scan is now in progress */ 2488 } 2489 2490 static void 2491 ciss_cam_rescan_all(struct ciss_softc *sc) 2492 { 2493 int i; 2494 2495 /* Rescan the logical buses */ 2496 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2497 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2498 /* Rescan the physical buses */ 2499 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2500 CISS_PHYSICAL_BASE; i++) 2501 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2502 } 2503 2504 static void 2505 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2506 { 2507 xpt_free_path(ccb->ccb_h.path); 2508 free(ccb, M_TEMP); 2509 } 2510 2511 /************************************************************************ 2512 * Handle requests coming from CAM 2513 */ 2514 static void 2515 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2516 { 2517 struct ciss_softc *sc; 2518 struct ccb_scsiio *csio; 2519 int bus, target; 2520 int physical; 2521 2522 sc = cam_sim_softc(sim); 2523 bus = cam_sim_bus(sim); 2524 csio = (struct ccb_scsiio *)&ccb->csio; 2525 target = csio->ccb_h.target_id; 2526 physical = CISS_IS_PHYSICAL(bus); 2527 2528 switch (ccb->ccb_h.func_code) { 2529 2530 /* perform SCSI I/O */ 2531 case XPT_SCSI_IO: 2532 if (!ciss_cam_action_io(sim, csio)) 2533 return; 2534 break; 2535 2536 /* perform geometry calculations */ 2537 case XPT_CALC_GEOMETRY: 2538 { 2539 struct ccb_calc_geometry *ccg = &ccb->ccg; 2540 struct ciss_ldrive *ld; 2541 2542 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2543 2544 ld = NULL; 2545 if (!physical) 2546 ld = &sc->ciss_logical[bus][target]; 2547 2548 /* 2549 * Use the cached geometry settings unless the fault tolerance 2550 * is invalid. 2551 */ 2552 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2553 u_int32_t secs_per_cylinder; 2554 2555 ccg->heads = 255; 2556 ccg->secs_per_track = 32; 2557 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2558 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2559 } else { 2560 ccg->heads = ld->cl_geometry.heads; 2561 ccg->secs_per_track = ld->cl_geometry.sectors; 2562 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2563 } 2564 ccb->ccb_h.status = CAM_REQ_CMP; 2565 break; 2566 } 2567 2568 /* handle path attribute inquiry */ 2569 case XPT_PATH_INQ: 2570 { 2571 struct ccb_pathinq *cpi = &ccb->cpi; 2572 2573 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2574 2575 cpi->version_num = 1; 2576 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2577 cpi->target_sprt = 0; 2578 cpi->hba_misc = 0; 2579 cpi->max_target = CISS_MAX_LOGICAL; 2580 cpi->max_lun = 0; /* 'logical drive' channel only */ 2581 cpi->initiator_id = CISS_MAX_LOGICAL; 2582 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2583 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2584 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2585 cpi->unit_number = cam_sim_unit(sim); 2586 cpi->bus_id = cam_sim_bus(sim); 2587 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2588 ccb->ccb_h.status = CAM_REQ_CMP; 2589 break; 2590 } 2591 2592 case XPT_GET_TRAN_SETTINGS: 2593 { 2594 struct ccb_trans_settings *cts = &ccb->cts; 2595 int bus, target; 2596 2597 bus = cam_sim_bus(sim); 2598 target = cts->ccb_h.target_id; 2599 2600 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2601 cts->valid = 0; 2602 2603 /* disconnect always OK */ 2604 cts->flags |= CCB_TRANS_DISC_ENB; 2605 cts->valid |= CCB_TRANS_DISC_VALID; 2606 2607 cts->ccb_h.status = CAM_REQ_CMP; 2608 break; 2609 } 2610 2611 default: /* we can't do this */ 2612 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2613 ccb->ccb_h.status = CAM_REQ_INVALID; 2614 break; 2615 } 2616 2617 xpt_done(ccb); 2618 } 2619 2620 /************************************************************************ 2621 * Handle a CAM SCSI I/O request. 2622 */ 2623 static int 2624 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2625 { 2626 struct ciss_softc *sc; 2627 int bus, target; 2628 struct ciss_request *cr; 2629 struct ciss_command *cc; 2630 int error; 2631 2632 sc = cam_sim_softc(sim); 2633 bus = cam_sim_bus(sim); 2634 target = csio->ccb_h.target_id; 2635 2636 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2637 2638 /* firmware does not support commands > 10 bytes */ 2639 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2640 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2641 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2642 } 2643 2644 /* check that the CDB pointer is not to a physical address */ 2645 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2646 debug(3, " CDB pointer is to physical address"); 2647 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2648 } 2649 2650 /* if there is data transfer, it must be to/from a virtual address */ 2651 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2652 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2653 debug(3, " data pointer is to physical address"); 2654 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2655 } 2656 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2657 debug(3, " data has premature s/g setup"); 2658 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2659 } 2660 } 2661 2662 /* abandon aborted ccbs or those that have failed validation */ 2663 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2664 debug(3, "abandoning CCB due to abort/validation failure"); 2665 return(EINVAL); 2666 } 2667 2668 /* handle emulation of some SCSI commands ourself */ 2669 if (ciss_cam_emulate(sc, csio)) 2670 return(0); 2671 2672 /* 2673 * Get a request to manage this command. If we can't, return the 2674 * ccb, freeze the queue and flag so that we unfreeze it when a 2675 * request completes. 2676 */ 2677 if ((error = ciss_get_request(sc, &cr)) != 0) { 2678 xpt_freeze_simq(sim, 1); 2679 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2680 return(error); 2681 } 2682 2683 /* 2684 * Build the command. 2685 */ 2686 cc = CISS_FIND_COMMAND(cr); 2687 cr->cr_data = csio->data_ptr; 2688 cr->cr_length = csio->dxfer_len; 2689 cr->cr_complete = ciss_cam_complete; 2690 cr->cr_private = csio; 2691 2692 /* 2693 * Target the right logical volume. 2694 */ 2695 if (CISS_IS_PHYSICAL(bus)) 2696 cc->header.address = 2697 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2698 else 2699 cc->header.address = 2700 sc->ciss_logical[bus][target].cl_address; 2701 cc->cdb.cdb_length = csio->cdb_len; 2702 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2703 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2704 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2705 cr->cr_flags = CISS_REQ_DATAOUT; 2706 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2707 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2708 cr->cr_flags = CISS_REQ_DATAIN; 2709 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2710 } else { 2711 cr->cr_flags = 0; 2712 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2713 } 2714 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2715 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2716 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2717 } else { 2718 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2719 } 2720 2721 /* 2722 * Submit the request to the adapter. 2723 * 2724 * Note that this may fail if we're unable to map the request (and 2725 * if we ever learn a transport layer other than simple, may fail 2726 * if the adapter rejects the command). 2727 */ 2728 if ((error = ciss_start(cr)) != 0) { 2729 xpt_freeze_simq(sim, 1); 2730 if (error == EINPROGRESS) { 2731 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2732 error = 0; 2733 } else { 2734 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2735 ciss_release_request(cr); 2736 } 2737 return(error); 2738 } 2739 2740 return(0); 2741 } 2742 2743 /************************************************************************ 2744 * Emulate SCSI commands the adapter doesn't handle as we might like. 2745 */ 2746 static int 2747 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2748 { 2749 int bus, target; 2750 u_int8_t opcode; 2751 2752 target = csio->ccb_h.target_id; 2753 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2754 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2755 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2756 2757 if (CISS_IS_PHYSICAL(bus)) { 2758 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2759 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2760 xpt_done((union ccb *)csio); 2761 return(1); 2762 } else 2763 return(0); 2764 } 2765 2766 /* 2767 * Handle requests for volumes that don't exist or are not online. 2768 * A selection timeout is slightly better than an illegal request. 2769 * Other errors might be better. 2770 */ 2771 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2772 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2773 xpt_done((union ccb *)csio); 2774 return(1); 2775 } 2776 2777 /* if we have to fake Synchronise Cache */ 2778 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2779 /* 2780 * If this is a Synchronise Cache command, typically issued when 2781 * a device is closed, flush the adapter and complete now. 2782 */ 2783 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2784 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2785 ciss_flush_adapter(sc); 2786 csio->ccb_h.status = CAM_REQ_CMP; 2787 xpt_done((union ccb *)csio); 2788 return(1); 2789 } 2790 } 2791 2792 return(0); 2793 } 2794 2795 /************************************************************************ 2796 * Check for possibly-completed commands. 2797 */ 2798 static void 2799 ciss_cam_poll(struct cam_sim *sim) 2800 { 2801 struct ciss_softc *sc = cam_sim_softc(sim); 2802 2803 debug_called(2); 2804 2805 ciss_done(sc); 2806 } 2807 2808 /************************************************************************ 2809 * Handle completion of a command - pass results back through the CCB 2810 */ 2811 static void 2812 ciss_cam_complete(struct ciss_request *cr) 2813 { 2814 struct ciss_softc *sc; 2815 struct ciss_command *cc; 2816 struct ciss_error_info *ce; 2817 struct ccb_scsiio *csio; 2818 int scsi_status; 2819 int command_status; 2820 2821 debug_called(2); 2822 2823 sc = cr->cr_sc; 2824 cc = CISS_FIND_COMMAND(cr); 2825 ce = (struct ciss_error_info *)&(cc->sg[0]); 2826 csio = (struct ccb_scsiio *)cr->cr_private; 2827 2828 /* 2829 * Extract status values from request. 2830 */ 2831 ciss_report_request(cr, &command_status, &scsi_status); 2832 csio->scsi_status = scsi_status; 2833 2834 /* 2835 * Handle specific SCSI status values. 2836 */ 2837 switch(scsi_status) { 2838 /* no status due to adapter error */ 2839 case -1: 2840 debug(0, "adapter error"); 2841 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2842 break; 2843 2844 /* no status due to command completed OK */ 2845 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2846 debug(2, "SCSI_STATUS_OK"); 2847 csio->ccb_h.status = CAM_REQ_CMP; 2848 break; 2849 2850 /* check condition, sense data included */ 2851 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2852 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2853 ce->sense_length, ce->residual_count); 2854 bzero(&csio->sense_data, SSD_FULL_SIZE); 2855 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2856 csio->sense_len = ce->sense_length; 2857 csio->resid = ce->residual_count; 2858 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2859 #ifdef CISS_DEBUG 2860 { 2861 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2862 debug(0, "sense key %x", sns->flags & SSD_KEY); 2863 } 2864 #endif 2865 break; 2866 2867 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2868 debug(0, "SCSI_STATUS_BUSY"); 2869 csio->ccb_h.status = CAM_SCSI_BUSY; 2870 break; 2871 2872 default: 2873 debug(0, "unknown status 0x%x", csio->scsi_status); 2874 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2875 break; 2876 } 2877 2878 /* handle post-command fixup */ 2879 ciss_cam_complete_fixup(sc, csio); 2880 2881 /* tell CAM we're ready for more commands */ 2882 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2883 2884 xpt_done((union ccb *)csio); 2885 ciss_release_request(cr); 2886 } 2887 2888 /******************************************************************************** 2889 * Fix up the result of some commands here. 2890 */ 2891 static void 2892 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2893 { 2894 struct scsi_inquiry_data *inq; 2895 struct ciss_ldrive *cl; 2896 int bus, target; 2897 2898 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2899 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2900 2901 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2902 target = csio->ccb_h.target_id; 2903 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2904 2905 /* 2906 * Don't let hard drives be seen by the DA driver. They will still be 2907 * attached by the PASS driver. 2908 */ 2909 if (CISS_IS_PHYSICAL(bus)) { 2910 if (SID_TYPE(inq) == T_DIRECT) 2911 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2912 return; 2913 } 2914 2915 cl = &sc->ciss_logical[bus][target]; 2916 2917 padstr(inq->vendor, "COMPAQ", 8); 2918 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2919 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2920 } 2921 } 2922 2923 2924 /******************************************************************************** 2925 * Find a peripheral attached at (target) 2926 */ 2927 static struct cam_periph * 2928 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2929 { 2930 struct cam_periph *periph; 2931 struct cam_path *path; 2932 int status; 2933 2934 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2935 target, 0); 2936 if (status == CAM_REQ_CMP) { 2937 periph = cam_periph_find(path, NULL); 2938 xpt_free_path(path); 2939 } else { 2940 periph = NULL; 2941 } 2942 return(periph); 2943 } 2944 2945 /******************************************************************************** 2946 * Name the device at (target) 2947 * 2948 * XXX is this strictly correct? 2949 */ 2950 static int 2951 ciss_name_device(struct ciss_softc *sc, int bus, int target) 2952 { 2953 struct cam_periph *periph; 2954 2955 if (CISS_IS_PHYSICAL(bus)) 2956 return (0); 2957 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 2958 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 2959 periph->periph_name, periph->unit_number); 2960 return(0); 2961 } 2962 sc->ciss_logical[bus][target].cl_name[0] = 0; 2963 return(ENOENT); 2964 } 2965 2966 /************************************************************************ 2967 * Periodic status monitoring. 2968 */ 2969 static void 2970 ciss_periodic(void *arg) 2971 { 2972 struct ciss_softc *sc; 2973 2974 debug_called(1); 2975 2976 sc = (struct ciss_softc *)arg; 2977 2978 /* 2979 * Check the adapter heartbeat. 2980 */ 2981 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2982 sc->ciss_heart_attack++; 2983 debug(0, "adapter heart attack in progress 0x%x/%d", 2984 sc->ciss_heartbeat, sc->ciss_heart_attack); 2985 if (sc->ciss_heart_attack == 3) { 2986 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2987 /* XXX should reset adapter here */ 2988 } 2989 } else { 2990 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2991 sc->ciss_heart_attack = 0; 2992 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2993 } 2994 2995 /* 2996 * If the notify event request has died for some reason, or has 2997 * not started yet, restart it. 2998 */ 2999 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3000 debug(0, "(re)starting Event Notify chain"); 3001 ciss_notify_event(sc); 3002 } 3003 3004 /* 3005 * Reschedule. 3006 */ 3007 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 3008 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 3009 } 3010 3011 /************************************************************************ 3012 * Request a notification response from the adapter. 3013 * 3014 * If (cr) is NULL, this is the first request of the adapter, so 3015 * reset the adapter's message pointer and start with the oldest 3016 * message available. 3017 */ 3018 static void 3019 ciss_notify_event(struct ciss_softc *sc) 3020 { 3021 struct ciss_request *cr; 3022 struct ciss_command *cc; 3023 struct ciss_notify_cdb *cnc; 3024 int error; 3025 3026 debug_called(1); 3027 3028 cr = sc->ciss_periodic_notify; 3029 3030 /* get a request if we don't already have one */ 3031 if (cr == NULL) { 3032 if ((error = ciss_get_request(sc, &cr)) != 0) { 3033 debug(0, "can't get notify event request"); 3034 goto out; 3035 } 3036 sc->ciss_periodic_notify = cr; 3037 cr->cr_complete = ciss_notify_complete; 3038 debug(1, "acquired request %d", cr->cr_tag); 3039 } 3040 3041 /* 3042 * Get a databuffer if we don't already have one, note that the 3043 * adapter command wants a larger buffer than the actual 3044 * structure. 3045 */ 3046 if (cr->cr_data == NULL) { 3047 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3048 debug(0, "can't get notify event request buffer"); 3049 error = ENOMEM; 3050 goto out; 3051 } 3052 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3053 } 3054 3055 /* re-setup the request's command (since we never release it) XXX overkill*/ 3056 ciss_preen_command(cr); 3057 3058 /* (re)build the notify event command */ 3059 cc = CISS_FIND_COMMAND(cr); 3060 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3061 cc->header.address.physical.bus = 0; 3062 cc->header.address.physical.target = 0; 3063 3064 cc->cdb.cdb_length = sizeof(*cnc); 3065 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3066 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3067 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3068 cc->cdb.timeout = 0; /* no timeout, we hope */ 3069 3070 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3071 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3072 cnc->opcode = CISS_OPCODE_READ; 3073 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3074 cnc->timeout = 0; /* no timeout, we hope */ 3075 cnc->synchronous = 0; 3076 cnc->ordered = 0; 3077 cnc->seek_to_oldest = 0; 3078 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3079 cnc->new_only = 1; 3080 else 3081 cnc->new_only = 0; 3082 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3083 3084 /* submit the request */ 3085 error = ciss_start(cr); 3086 3087 out: 3088 if (error) { 3089 if (cr != NULL) { 3090 if (cr->cr_data != NULL) 3091 free(cr->cr_data, CISS_MALLOC_CLASS); 3092 ciss_release_request(cr); 3093 } 3094 sc->ciss_periodic_notify = NULL; 3095 debug(0, "can't submit notify event request"); 3096 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3097 } else { 3098 debug(1, "notify event submitted"); 3099 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3100 } 3101 } 3102 3103 static void 3104 ciss_notify_complete(struct ciss_request *cr) 3105 { 3106 struct ciss_command *cc; 3107 struct ciss_notify *cn; 3108 struct ciss_softc *sc; 3109 int scsi_status; 3110 int command_status; 3111 debug_called(1); 3112 3113 cc = CISS_FIND_COMMAND(cr); 3114 cn = (struct ciss_notify *)cr->cr_data; 3115 sc = cr->cr_sc; 3116 3117 /* 3118 * Report request results, decode status. 3119 */ 3120 ciss_report_request(cr, &command_status, &scsi_status); 3121 3122 /* 3123 * Abort the chain on a fatal error. 3124 * 3125 * XXX which of these are actually errors? 3126 */ 3127 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3128 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3129 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3130 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3131 ciss_name_command_status(command_status)); 3132 ciss_release_request(cr); 3133 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3134 return; 3135 } 3136 3137 /* 3138 * If the adapter gave us a text message, print it. 3139 */ 3140 if (cn->message[0] != 0) 3141 ciss_printf(sc, "*** %.80s\n", cn->message); 3142 3143 debug(0, "notify event class %d subclass %d detail %d", 3144 cn->class, cn->subclass, cn->detail); 3145 3146 /* 3147 * If the response indicates that the notifier has been aborted, 3148 * release the notifier command. 3149 */ 3150 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3151 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3152 (cn->detail == 1)) { 3153 debug(0, "notifier exiting"); 3154 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3155 ciss_release_request(cr); 3156 sc->ciss_periodic_notify = NULL; 3157 wakeup(&sc->ciss_periodic_notify); 3158 } else { 3159 /* Handle notify events in a kernel thread */ 3160 ciss_enqueue_notify(cr); 3161 sc->ciss_periodic_notify = NULL; 3162 wakeup(&sc->ciss_periodic_notify); 3163 wakeup(&sc->ciss_notify); 3164 } 3165 /* 3166 * Send a new notify event command, if we're not aborting. 3167 */ 3168 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3169 ciss_notify_event(sc); 3170 } 3171 } 3172 3173 /************************************************************************ 3174 * Abort the Notify Event chain. 3175 * 3176 * Note that we can't just abort the command in progress; we have to 3177 * explicitly issue an Abort Notify Event command in order for the 3178 * adapter to clean up correctly. 3179 * 3180 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3181 * the chain will not restart itself. 3182 */ 3183 static int 3184 ciss_notify_abort(struct ciss_softc *sc) 3185 { 3186 struct ciss_request *cr; 3187 struct ciss_command *cc; 3188 struct ciss_notify_cdb *cnc; 3189 int error, s, command_status, scsi_status; 3190 3191 debug_called(1); 3192 3193 cr = NULL; 3194 error = 0; 3195 3196 /* verify that there's an outstanding command */ 3197 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3198 goto out; 3199 3200 /* get a command to issue the abort with */ 3201 if ((error = ciss_get_request(sc, &cr))) 3202 goto out; 3203 3204 /* get a buffer for the result */ 3205 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3206 debug(0, "can't get notify event request buffer"); 3207 error = ENOMEM; 3208 goto out; 3209 } 3210 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3211 3212 /* build the CDB */ 3213 cc = CISS_FIND_COMMAND(cr); 3214 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3215 cc->header.address.physical.bus = 0; 3216 cc->header.address.physical.target = 0; 3217 cc->cdb.cdb_length = sizeof(*cnc); 3218 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3219 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3220 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3221 cc->cdb.timeout = 0; /* no timeout, we hope */ 3222 3223 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3224 bzero(cnc, sizeof(*cnc)); 3225 cnc->opcode = CISS_OPCODE_WRITE; 3226 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3227 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3228 3229 ciss_print_request(cr); 3230 3231 /* 3232 * Submit the request and wait for it to complete. 3233 */ 3234 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3235 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3236 goto out; 3237 } 3238 3239 /* 3240 * Check response. 3241 */ 3242 ciss_report_request(cr, &command_status, &scsi_status); 3243 switch(command_status) { 3244 case CISS_CMD_STATUS_SUCCESS: 3245 break; 3246 case CISS_CMD_STATUS_INVALID_COMMAND: 3247 /* 3248 * Some older adapters don't support the CISS version of this 3249 * command. Fall back to using the BMIC version. 3250 */ 3251 error = ciss_notify_abort_bmic(sc); 3252 if (error != 0) 3253 goto out; 3254 break; 3255 3256 case CISS_CMD_STATUS_TARGET_STATUS: 3257 /* 3258 * This can happen if the adapter thinks there wasn't an outstanding 3259 * Notify Event command but we did. We clean up here. 3260 */ 3261 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3262 if (sc->ciss_periodic_notify != NULL) 3263 ciss_release_request(sc->ciss_periodic_notify); 3264 error = 0; 3265 goto out; 3266 } 3267 /* FALLTHROUGH */ 3268 3269 default: 3270 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3271 ciss_name_command_status(command_status)); 3272 error = EIO; 3273 goto out; 3274 } 3275 3276 /* 3277 * Sleep waiting for the notifier command to complete. Note 3278 * that if it doesn't, we may end up in a bad situation, since 3279 * the adapter may deliver it later. Also note that the adapter 3280 * requires the Notify Event command to be cancelled in order to 3281 * maintain internal bookkeeping. 3282 */ 3283 s = splcam(); 3284 while (sc->ciss_periodic_notify != NULL) { 3285 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3286 if (error == EWOULDBLOCK) { 3287 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3288 break; 3289 } 3290 } 3291 splx(s); 3292 3293 out: 3294 /* release the cancel request */ 3295 if (cr != NULL) { 3296 if (cr->cr_data != NULL) 3297 free(cr->cr_data, CISS_MALLOC_CLASS); 3298 ciss_release_request(cr); 3299 } 3300 if (error == 0) 3301 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3302 return(error); 3303 } 3304 3305 /************************************************************************ 3306 * Abort the Notify Event chain using a BMIC command. 3307 */ 3308 static int 3309 ciss_notify_abort_bmic(struct ciss_softc *sc) 3310 { 3311 struct ciss_request *cr; 3312 int error, command_status; 3313 3314 debug_called(1); 3315 3316 cr = NULL; 3317 error = 0; 3318 3319 /* verify that there's an outstanding command */ 3320 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3321 goto out; 3322 3323 /* 3324 * Build a BMIC command to cancel the Notify on Event command. 3325 * 3326 * Note that we are sending a CISS opcode here. Odd. 3327 */ 3328 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3329 NULL, 0)) != 0) 3330 goto out; 3331 3332 /* 3333 * Submit the request and wait for it to complete. 3334 */ 3335 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3336 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3337 goto out; 3338 } 3339 3340 /* 3341 * Check response. 3342 */ 3343 ciss_report_request(cr, &command_status, NULL); 3344 switch(command_status) { 3345 case CISS_CMD_STATUS_SUCCESS: 3346 break; 3347 default: 3348 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3349 ciss_name_command_status(command_status)); 3350 error = EIO; 3351 goto out; 3352 } 3353 3354 out: 3355 if (cr != NULL) 3356 ciss_release_request(cr); 3357 return(error); 3358 } 3359 3360 /************************************************************************ 3361 * Handle rescanning all the logical volumes when a notify event 3362 * causes the drives to come online or offline. 3363 */ 3364 static void 3365 ciss_notify_rescan_logical(struct ciss_softc *sc) 3366 { 3367 struct ciss_lun_report *cll; 3368 struct ciss_ldrive *ld; 3369 int i, j, ndrives; 3370 3371 /* 3372 * We must rescan all logical volumes to get the right logical 3373 * drive address. 3374 */ 3375 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3376 CISS_MAX_LOGICAL); 3377 if (cll == NULL) 3378 return; 3379 3380 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3381 3382 /* 3383 * Delete any of the drives which were destroyed by the 3384 * firmware. 3385 */ 3386 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3387 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3388 ld = &sc->ciss_logical[i][j]; 3389 3390 if (ld->cl_update == 0) 3391 continue; 3392 3393 if (ld->cl_status != CISS_LD_ONLINE) { 3394 ciss_cam_rescan_target(sc, i, j); 3395 ld->cl_update = 0; 3396 if (ld->cl_ldrive) 3397 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3398 if (ld->cl_lstatus) 3399 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3400 3401 ld->cl_ldrive = NULL; 3402 ld->cl_lstatus = NULL; 3403 } 3404 } 3405 } 3406 3407 /* 3408 * Scan for new drives. 3409 */ 3410 for (i = 0; i < ndrives; i++) { 3411 int bus, target; 3412 3413 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3414 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3415 ld = &sc->ciss_logical[bus][target]; 3416 3417 if (ld->cl_update == 0) 3418 continue; 3419 3420 ld->cl_update = 0; 3421 ld->cl_address = cll->lun[i]; 3422 ld->cl_controller = &sc->ciss_controllers[bus]; 3423 if (ciss_identify_logical(sc, ld) == 0) { 3424 ciss_cam_rescan_target(sc, bus, target); 3425 } 3426 } 3427 free(cll, CISS_MALLOC_CLASS); 3428 } 3429 3430 /************************************************************************ 3431 * Handle a notify event relating to the status of a logical drive. 3432 * 3433 * XXX need to be able to defer some of these to properly handle 3434 * calling the "ID Physical drive" command, unless the 'extended' 3435 * drive IDs are always in BIG_MAP format. 3436 */ 3437 static void 3438 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3439 { 3440 struct ciss_ldrive *ld; 3441 int ostatus, bus, target; 3442 3443 debug_called(2); 3444 3445 bus = cn->device.physical.bus; 3446 target = cn->data.logical_status.logical_drive; 3447 ld = &sc->ciss_logical[bus][target]; 3448 3449 switch (cn->subclass) { 3450 case CISS_NOTIFY_LOGICAL_STATUS: 3451 switch (cn->detail) { 3452 case 0: 3453 ciss_name_device(sc, bus, target); 3454 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3455 cn->data.logical_status.logical_drive, ld->cl_name, 3456 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3457 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3458 cn->data.logical_status.spare_state, 3459 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3460 3461 /* 3462 * Update our idea of the drive's status. 3463 */ 3464 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3465 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3466 if (ld->cl_lstatus != NULL) 3467 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3468 3469 /* 3470 * Have CAM rescan the drive if its status has changed. 3471 */ 3472 if (ostatus != ld->cl_status) { 3473 ld->cl_update = 1; 3474 ciss_notify_rescan_logical(sc); 3475 } 3476 3477 break; 3478 3479 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3480 ciss_name_device(sc, bus, target); 3481 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3482 cn->data.logical_status.logical_drive, ld->cl_name); 3483 ciss_accept_media(sc, ld); 3484 3485 ld->cl_update = 1; 3486 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3487 ciss_notify_rescan_logical(sc); 3488 break; 3489 3490 case 2: 3491 case 3: 3492 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3493 cn->data.rebuild_aborted.logical_drive, 3494 ld->cl_name, 3495 (cn->detail == 2) ? "read" : "write"); 3496 break; 3497 } 3498 break; 3499 3500 case CISS_NOTIFY_LOGICAL_ERROR: 3501 if (cn->detail == 0) { 3502 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3503 cn->data.io_error.logical_drive, 3504 ld->cl_name, 3505 cn->data.io_error.failure_bus, 3506 cn->data.io_error.failure_drive); 3507 /* XXX should we take the drive down at this point, or will we be told? */ 3508 } 3509 break; 3510 3511 case CISS_NOTIFY_LOGICAL_SURFACE: 3512 if (cn->detail == 0) 3513 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3514 cn->data.consistency_completed.logical_drive, 3515 ld->cl_name); 3516 break; 3517 } 3518 } 3519 3520 /************************************************************************ 3521 * Handle a notify event relating to the status of a physical drive. 3522 */ 3523 static void 3524 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3525 { 3526 } 3527 3528 /************************************************************************ 3529 * Handle a notify event relating to the status of a physical drive. 3530 */ 3531 static void 3532 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3533 { 3534 struct ciss_lun_report *cll; 3535 int bus, target; 3536 int s; 3537 3538 switch (cn->subclass) { 3539 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3540 case CISS_NOTIFY_HOTPLUG_NONDISK: 3541 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3542 target = 3543 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3544 3545 s = splcam(); 3546 if (cn->detail == 0) { 3547 /* 3548 * Mark the device offline so that it'll start producing selection 3549 * timeouts to the upper layer. 3550 */ 3551 if ((bus >= 0) && (target >= 0)) 3552 sc->ciss_physical[bus][target].cp_online = 0; 3553 } else { 3554 /* 3555 * Rescan the physical lun list for new items 3556 */ 3557 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3558 CISS_MAX_PHYSICAL); 3559 if (cll == NULL) { 3560 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3561 break; 3562 } 3563 ciss_filter_physical(sc, cll); 3564 } 3565 splx(s); 3566 break; 3567 3568 default: 3569 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3570 return; 3571 } 3572 } 3573 3574 /************************************************************************ 3575 * Handle deferred processing of notify events. Notify events may need 3576 * sleep which is unsafe during an interrupt. 3577 */ 3578 static void 3579 ciss_notify_thread(void *arg) 3580 { 3581 struct ciss_softc *sc; 3582 struct ciss_request *cr; 3583 struct ciss_notify *cn; 3584 int s; 3585 3586 #if __FreeBSD_version >= 500000 3587 mtx_lock(&Giant); 3588 #endif 3589 sc = (struct ciss_softc *)arg; 3590 3591 s = splcam(); 3592 for (;;) { 3593 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3594 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3595 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3596 } 3597 3598 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3599 break; 3600 3601 cr = ciss_dequeue_notify(sc); 3602 splx(s); 3603 3604 if (cr == NULL) 3605 panic("cr null"); 3606 cn = (struct ciss_notify *)cr->cr_data; 3607 3608 switch (cn->class) { 3609 case CISS_NOTIFY_HOTPLUG: 3610 ciss_notify_hotplug(sc, cn); 3611 break; 3612 case CISS_NOTIFY_LOGICAL: 3613 ciss_notify_logical(sc, cn); 3614 break; 3615 case CISS_NOTIFY_PHYSICAL: 3616 ciss_notify_physical(sc, cn); 3617 break; 3618 } 3619 3620 ciss_release_request(cr); 3621 3622 s = splcam(); 3623 } 3624 sc->ciss_notify_thread = NULL; 3625 wakeup(&sc->ciss_notify_thread); 3626 splx(s); 3627 3628 #if __FreeBSD_version >= 500000 3629 mtx_unlock(&Giant); 3630 #endif 3631 kthread_exit(0); 3632 } 3633 3634 /************************************************************************ 3635 * Start the notification kernel thread. 3636 */ 3637 static void 3638 ciss_spawn_notify_thread(struct ciss_softc *sc) 3639 { 3640 3641 #if __FreeBSD_version > 500005 3642 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3643 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3644 device_get_unit(sc->ciss_dev))) 3645 #else 3646 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3647 &sc->ciss_notify_thread, "ciss_notify%d", 3648 device_get_unit(sc->ciss_dev))) 3649 #endif 3650 panic("Could not create notify thread\n"); 3651 } 3652 3653 /************************************************************************ 3654 * Kill the notification kernel thread. 3655 */ 3656 static void 3657 ciss_kill_notify_thread(struct ciss_softc *sc) 3658 { 3659 3660 if (sc->ciss_notify_thread == NULL) 3661 return; 3662 3663 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3664 wakeup(&sc->ciss_notify); 3665 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3666 } 3667 3668 /************************************************************************ 3669 * Print a request. 3670 */ 3671 static void 3672 ciss_print_request(struct ciss_request *cr) 3673 { 3674 struct ciss_softc *sc; 3675 struct ciss_command *cc; 3676 int i; 3677 3678 sc = cr->cr_sc; 3679 cc = CISS_FIND_COMMAND(cr); 3680 3681 ciss_printf(sc, "REQUEST @ %p\n", cr); 3682 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3683 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3684 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3685 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3686 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3687 switch(cc->header.address.mode.mode) { 3688 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3689 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3690 ciss_printf(sc, " physical bus %d target %d\n", 3691 cc->header.address.physical.bus, cc->header.address.physical.target); 3692 break; 3693 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3694 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3695 break; 3696 } 3697 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3698 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3699 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3700 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3701 cc->cdb.cdb_length, 3702 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3703 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3704 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3705 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3706 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3707 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3708 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3709 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3710 3711 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3712 /* XXX print error info */ 3713 } else { 3714 /* since we don't use chained s/g, don't support it here */ 3715 for (i = 0; i < cc->header.sg_in_list; i++) { 3716 if ((i % 4) == 0) 3717 ciss_printf(sc, " "); 3718 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3719 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3720 printf("\n"); 3721 } 3722 } 3723 } 3724 3725 /************************************************************************ 3726 * Print information about the status of a logical drive. 3727 */ 3728 static void 3729 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3730 { 3731 int bus, target, i; 3732 3733 if (ld->cl_lstatus == NULL) { 3734 printf("does not exist\n"); 3735 return; 3736 } 3737 3738 /* print drive status */ 3739 switch(ld->cl_lstatus->status) { 3740 case CISS_LSTATUS_OK: 3741 printf("online\n"); 3742 break; 3743 case CISS_LSTATUS_INTERIM_RECOVERY: 3744 printf("in interim recovery mode\n"); 3745 break; 3746 case CISS_LSTATUS_READY_RECOVERY: 3747 printf("ready to begin recovery\n"); 3748 break; 3749 case CISS_LSTATUS_RECOVERING: 3750 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3751 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3752 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3753 bus, target, ld->cl_lstatus->blocks_to_recover); 3754 break; 3755 case CISS_LSTATUS_EXPANDING: 3756 printf("being expanded, %u blocks remaining\n", 3757 ld->cl_lstatus->blocks_to_recover); 3758 break; 3759 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3760 printf("queued for expansion\n"); 3761 break; 3762 case CISS_LSTATUS_FAILED: 3763 printf("queued for expansion\n"); 3764 break; 3765 case CISS_LSTATUS_WRONG_PDRIVE: 3766 printf("wrong physical drive inserted\n"); 3767 break; 3768 case CISS_LSTATUS_MISSING_PDRIVE: 3769 printf("missing a needed physical drive\n"); 3770 break; 3771 case CISS_LSTATUS_BECOMING_READY: 3772 printf("becoming ready\n"); 3773 break; 3774 } 3775 3776 /* print failed physical drives */ 3777 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3778 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3779 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3780 if (bus == -1) 3781 continue; 3782 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3783 ld->cl_lstatus->drive_failure_map[i]); 3784 } 3785 } 3786 3787 #ifdef CISS_DEBUG 3788 /************************************************************************ 3789 * Print information about the controller/driver. 3790 */ 3791 static void 3792 ciss_print_adapter(struct ciss_softc *sc) 3793 { 3794 int i, j; 3795 3796 ciss_printf(sc, "ADAPTER:\n"); 3797 for (i = 0; i < CISSQ_COUNT; i++) { 3798 ciss_printf(sc, "%s %d/%d\n", 3799 i == 0 ? "free" : 3800 i == 1 ? "busy" : "complete", 3801 sc->ciss_qstat[i].q_length, 3802 sc->ciss_qstat[i].q_max); 3803 } 3804 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3805 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3806 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3807 3808 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3809 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3810 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3811 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3812 } 3813 } 3814 3815 /* XXX Should physical drives be printed out here? */ 3816 3817 for (i = 1; i < sc->ciss_max_requests; i++) 3818 ciss_print_request(sc->ciss_request + i); 3819 } 3820 3821 /* DDB hook */ 3822 static void 3823 ciss_print0(void) 3824 { 3825 struct ciss_softc *sc; 3826 3827 sc = devclass_get_softc(devclass_find("ciss"), 0); 3828 if (sc == NULL) { 3829 printf("no ciss controllers\n"); 3830 } else { 3831 ciss_print_adapter(sc); 3832 } 3833 } 3834 #endif 3835 3836 /************************************************************************ 3837 * Return a name for a logical drive status value. 3838 */ 3839 static const char * 3840 ciss_name_ldrive_status(int status) 3841 { 3842 switch (status) { 3843 case CISS_LSTATUS_OK: 3844 return("OK"); 3845 case CISS_LSTATUS_FAILED: 3846 return("failed"); 3847 case CISS_LSTATUS_NOT_CONFIGURED: 3848 return("not configured"); 3849 case CISS_LSTATUS_INTERIM_RECOVERY: 3850 return("interim recovery"); 3851 case CISS_LSTATUS_READY_RECOVERY: 3852 return("ready for recovery"); 3853 case CISS_LSTATUS_RECOVERING: 3854 return("recovering"); 3855 case CISS_LSTATUS_WRONG_PDRIVE: 3856 return("wrong physical drive inserted"); 3857 case CISS_LSTATUS_MISSING_PDRIVE: 3858 return("missing physical drive"); 3859 case CISS_LSTATUS_EXPANDING: 3860 return("expanding"); 3861 case CISS_LSTATUS_BECOMING_READY: 3862 return("becoming ready"); 3863 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3864 return("queued for expansion"); 3865 } 3866 return("unknown status"); 3867 } 3868 3869 /************************************************************************ 3870 * Return an online/offline/nonexistent value for a logical drive 3871 * status value. 3872 */ 3873 static int 3874 ciss_decode_ldrive_status(int status) 3875 { 3876 switch(status) { 3877 case CISS_LSTATUS_NOT_CONFIGURED: 3878 return(CISS_LD_NONEXISTENT); 3879 3880 case CISS_LSTATUS_OK: 3881 case CISS_LSTATUS_INTERIM_RECOVERY: 3882 case CISS_LSTATUS_READY_RECOVERY: 3883 case CISS_LSTATUS_RECOVERING: 3884 case CISS_LSTATUS_EXPANDING: 3885 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3886 return(CISS_LD_ONLINE); 3887 3888 case CISS_LSTATUS_FAILED: 3889 case CISS_LSTATUS_WRONG_PDRIVE: 3890 case CISS_LSTATUS_MISSING_PDRIVE: 3891 case CISS_LSTATUS_BECOMING_READY: 3892 default: 3893 return(CISS_LD_OFFLINE); 3894 } 3895 } 3896 3897 3898 /************************************************************************ 3899 * Return a name for a logical drive's organisation. 3900 */ 3901 static const char * 3902 ciss_name_ldrive_org(int org) 3903 { 3904 switch(org) { 3905 case CISS_LDRIVE_RAID0: 3906 return("RAID 0"); 3907 case CISS_LDRIVE_RAID1: 3908 return("RAID 1"); 3909 case CISS_LDRIVE_RAID4: 3910 return("RAID 4"); 3911 case CISS_LDRIVE_RAID5: 3912 return("RAID 5"); 3913 case CISS_LDRIVE_RAID51: 3914 return("RAID 5+1"); 3915 case CISS_LDRIVE_RAIDADG: 3916 return("RAID ADG"); 3917 } 3918 return("unkown"); 3919 } 3920 3921 /************************************************************************ 3922 * Return a name for a command status value. 3923 */ 3924 static const char * 3925 ciss_name_command_status(int status) 3926 { 3927 switch(status) { 3928 case CISS_CMD_STATUS_SUCCESS: 3929 return("success"); 3930 case CISS_CMD_STATUS_TARGET_STATUS: 3931 return("target status"); 3932 case CISS_CMD_STATUS_DATA_UNDERRUN: 3933 return("data underrun"); 3934 case CISS_CMD_STATUS_DATA_OVERRUN: 3935 return("data overrun"); 3936 case CISS_CMD_STATUS_INVALID_COMMAND: 3937 return("invalid command"); 3938 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3939 return("protocol error"); 3940 case CISS_CMD_STATUS_HARDWARE_ERROR: 3941 return("hardware error"); 3942 case CISS_CMD_STATUS_CONNECTION_LOST: 3943 return("connection lost"); 3944 case CISS_CMD_STATUS_ABORTED: 3945 return("aborted"); 3946 case CISS_CMD_STATUS_ABORT_FAILED: 3947 return("abort failed"); 3948 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3949 return("unsolicited abort"); 3950 case CISS_CMD_STATUS_TIMEOUT: 3951 return("timeout"); 3952 case CISS_CMD_STATUS_UNABORTABLE: 3953 return("unabortable"); 3954 } 3955 return("unknown status"); 3956 } 3957 3958 /************************************************************************ 3959 * Handle an open on the control device. 3960 */ 3961 static int 3962 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 3963 { 3964 struct ciss_softc *sc; 3965 3966 debug_called(1); 3967 3968 sc = (struct ciss_softc *)dev->si_drv1; 3969 3970 /* we might want to veto if someone already has us open */ 3971 3972 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3973 return(0); 3974 } 3975 3976 /************************************************************************ 3977 * Handle the last close on the control device. 3978 */ 3979 static int 3980 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 3981 { 3982 struct ciss_softc *sc; 3983 3984 debug_called(1); 3985 3986 sc = (struct ciss_softc *)dev->si_drv1; 3987 3988 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3989 return (0); 3990 } 3991 3992 /******************************************************************************** 3993 * Handle adapter-specific control operations. 3994 * 3995 * Note that the API here is compatible with the Linux driver, in order to 3996 * simplify the porting of Compaq's userland tools. 3997 */ 3998 static int 3999 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4000 { 4001 struct ciss_softc *sc; 4002 int error; 4003 4004 debug_called(1); 4005 4006 sc = (struct ciss_softc *)dev->si_drv1; 4007 error = 0; 4008 4009 switch(cmd) { 4010 case CCISS_GETPCIINFO: 4011 { 4012 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4013 4014 pis->bus = pci_get_bus(sc->ciss_dev); 4015 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4016 pis->board_id = pci_get_devid(sc->ciss_dev); 4017 4018 break; 4019 } 4020 4021 case CCISS_GETINTINFO: 4022 { 4023 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4024 4025 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4026 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4027 4028 break; 4029 } 4030 4031 case CCISS_SETINTINFO: 4032 { 4033 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4034 4035 if ((cis->delay == 0) && (cis->count == 0)) { 4036 error = EINVAL; 4037 break; 4038 } 4039 4040 /* 4041 * XXX apparently this is only safe if the controller is idle, 4042 * we should suspend it before doing this. 4043 */ 4044 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4045 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4046 4047 if (ciss_update_config(sc)) 4048 error = EIO; 4049 4050 /* XXX resume the controller here */ 4051 break; 4052 } 4053 4054 case CCISS_GETNODENAME: 4055 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4056 sizeof(NodeName_type)); 4057 break; 4058 4059 case CCISS_SETNODENAME: 4060 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4061 sizeof(NodeName_type)); 4062 if (ciss_update_config(sc)) 4063 error = EIO; 4064 break; 4065 4066 case CCISS_GETHEARTBEAT: 4067 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4068 break; 4069 4070 case CCISS_GETBUSTYPES: 4071 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4072 break; 4073 4074 case CCISS_GETFIRMVER: 4075 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4076 sizeof(FirmwareVer_type)); 4077 break; 4078 4079 case CCISS_GETDRIVERVER: 4080 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4081 break; 4082 4083 case CCISS_REVALIDVOLS: 4084 /* 4085 * This is a bit ugly; to do it "right" we really need 4086 * to find any disks that have changed, kick CAM off them, 4087 * then rescan only these disks. It'd be nice if they 4088 * a) told us which disk(s) they were going to play with, 4089 * and b) which ones had arrived. 8( 4090 */ 4091 break; 4092 4093 case CCISS_PASSTHRU: 4094 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 4095 break; 4096 4097 default: 4098 debug(0, "unknown ioctl 0x%lx", cmd); 4099 4100 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4101 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4102 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4103 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4104 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4105 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4106 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4107 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4108 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4109 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4110 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4111 4112 error = ENOIOCTL; 4113 break; 4114 } 4115 4116 return(error); 4117 } 4118