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