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 { 0x0e11, 0x409E, CISS_BOARD_SA5, "HP Smart Array 6422" }, 272 { 0x103C, 0x3210, CISS_BOARD_SA5, "HP Smart Array V100" }, 273 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 274 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 275 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 276 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 277 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 278 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array" }, 280 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array" }, 281 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 282 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 287 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 288 { 0, 0, 0, NULL } 289 }; 290 291 /************************************************************************ 292 * Find a match for the device in our list of known adapters. 293 */ 294 static int 295 ciss_lookup(device_t dev) 296 { 297 int i; 298 299 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 300 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 301 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 302 return(i); 303 } 304 return(-1); 305 } 306 307 /************************************************************************ 308 * Match a known CISS adapter. 309 */ 310 static int 311 ciss_probe(device_t dev) 312 { 313 int i; 314 315 i = ciss_lookup(dev); 316 if (i != -1) { 317 device_set_desc(dev, ciss_vendor_data[i].desc); 318 return(-10); 319 } 320 return(ENOENT); 321 } 322 323 /************************************************************************ 324 * Attach the driver to this adapter. 325 */ 326 static int 327 ciss_attach(device_t dev) 328 { 329 struct ciss_softc *sc; 330 int i, error; 331 332 debug_called(1); 333 334 #ifdef CISS_DEBUG 335 /* print structure/union sizes */ 336 debug_struct(ciss_command); 337 debug_struct(ciss_header); 338 debug_union(ciss_device_address); 339 debug_struct(ciss_cdb); 340 debug_struct(ciss_report_cdb); 341 debug_struct(ciss_notify_cdb); 342 debug_struct(ciss_notify); 343 debug_struct(ciss_message_cdb); 344 debug_struct(ciss_error_info_pointer); 345 debug_struct(ciss_error_info); 346 debug_struct(ciss_sg_entry); 347 debug_struct(ciss_config_table); 348 debug_struct(ciss_bmic_cdb); 349 debug_struct(ciss_bmic_id_ldrive); 350 debug_struct(ciss_bmic_id_lstatus); 351 debug_struct(ciss_bmic_id_table); 352 debug_struct(ciss_bmic_id_pdrive); 353 debug_struct(ciss_bmic_blink_pdrive); 354 debug_struct(ciss_bmic_flush_cache); 355 debug_const(CISS_MAX_REQUESTS); 356 debug_const(CISS_MAX_LOGICAL); 357 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 358 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 359 debug_const(CISS_COMMAND_ALLOC_SIZE); 360 debug_const(CISS_COMMAND_SG_LENGTH); 361 362 debug_type(cciss_pci_info_struct); 363 debug_type(cciss_coalint_struct); 364 debug_type(cciss_coalint_struct); 365 debug_type(NodeName_type); 366 debug_type(NodeName_type); 367 debug_type(Heartbeat_type); 368 debug_type(BusTypes_type); 369 debug_type(FirmwareVer_type); 370 debug_type(DriverVer_type); 371 debug_type(IOCTL_Command_struct); 372 #endif 373 374 sc = device_get_softc(dev); 375 sc->ciss_dev = dev; 376 377 /* 378 * Work out adapter type. 379 */ 380 i = ciss_lookup(dev); 381 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 382 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 383 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 384 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 385 } else { 386 /* really an error on our part */ 387 ciss_printf(sc, "unable to determine hardware type\n"); 388 error = ENXIO; 389 goto out; 390 } 391 392 /* 393 * Do PCI-specific init. 394 */ 395 if ((error = ciss_init_pci(sc)) != 0) 396 goto out; 397 398 /* 399 * Initialise driver queues. 400 */ 401 ciss_initq_free(sc); 402 ciss_initq_busy(sc); 403 ciss_initq_complete(sc); 404 ciss_initq_notify(sc); 405 406 /* 407 * Initialise command/request pool. 408 */ 409 if ((error = ciss_init_requests(sc)) != 0) 410 goto out; 411 412 /* 413 * Get adapter information. 414 */ 415 if ((error = ciss_identify_adapter(sc)) != 0) 416 goto out; 417 418 /* 419 * Find all the physical devices. 420 */ 421 if ((error = ciss_init_physical(sc)) != 0) 422 goto out; 423 424 /* 425 * Build our private table of logical devices. 426 */ 427 if ((error = ciss_init_logical(sc)) != 0) 428 goto out; 429 430 /* 431 * Enable interrupts so that the CAM scan can complete. 432 */ 433 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 434 435 /* 436 * Initialise the CAM interface. 437 */ 438 if ((error = ciss_cam_init(sc)) != 0) 439 goto out; 440 441 /* 442 * Start the heartbeat routine and event chain. 443 */ 444 ciss_periodic(sc); 445 446 /* 447 * Create the control device. 448 */ 449 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 450 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 451 "ciss%d", device_get_unit(sc->ciss_dev)); 452 sc->ciss_dev_t->si_drv1 = sc; 453 454 /* 455 * The adapter is running; synchronous commands can now sleep 456 * waiting for an interrupt to signal completion. 457 */ 458 sc->ciss_flags |= CISS_FLAG_RUNNING; 459 460 ciss_spawn_notify_thread(sc); 461 462 error = 0; 463 out: 464 if (error != 0) 465 ciss_free(sc); 466 return(error); 467 } 468 469 /************************************************************************ 470 * Detach the driver from this adapter. 471 */ 472 static int 473 ciss_detach(device_t dev) 474 { 475 struct ciss_softc *sc = device_get_softc(dev); 476 477 debug_called(1); 478 479 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 480 return (EBUSY); 481 482 /* flush adapter cache */ 483 ciss_flush_adapter(sc); 484 485 /* release all resources */ 486 ciss_free(sc); 487 488 return(0); 489 } 490 491 /************************************************************************ 492 * Prepare adapter for system shutdown. 493 */ 494 static int 495 ciss_shutdown(device_t dev) 496 { 497 struct ciss_softc *sc = device_get_softc(dev); 498 499 debug_called(1); 500 501 /* flush adapter cache */ 502 ciss_flush_adapter(sc); 503 504 return(0); 505 } 506 507 /************************************************************************ 508 * Perform PCI-specific attachment actions. 509 */ 510 static int 511 ciss_init_pci(struct ciss_softc *sc) 512 { 513 uintptr_t cbase, csize, cofs; 514 int error; 515 516 debug_called(1); 517 518 /* 519 * Allocate register window first (we need this to find the config 520 * struct). 521 */ 522 error = ENXIO; 523 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 524 if ((sc->ciss_regs_resource = 525 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 526 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 527 ciss_printf(sc, "can't allocate register window\n"); 528 return(ENXIO); 529 } 530 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 531 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 532 533 /* 534 * Find the BAR holding the config structure. If it's not the one 535 * we already mapped for registers, map it too. 536 */ 537 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 538 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 539 if ((sc->ciss_cfg_resource = 540 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 541 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 542 ciss_printf(sc, "can't allocate config window\n"); 543 return(ENXIO); 544 } 545 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 546 csize = rman_get_end(sc->ciss_cfg_resource) - 547 rman_get_start(sc->ciss_cfg_resource) + 1; 548 } else { 549 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 550 csize = rman_get_end(sc->ciss_regs_resource) - 551 rman_get_start(sc->ciss_regs_resource) + 1; 552 } 553 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 554 555 /* 556 * Use the base/size/offset values we just calculated to 557 * sanity-check the config structure. If it's OK, point to it. 558 */ 559 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 560 ciss_printf(sc, "config table outside window\n"); 561 return(ENXIO); 562 } 563 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 564 debug(1, "config struct at %p", sc->ciss_cfg); 565 566 /* 567 * Validate the config structure. If we supported other transport 568 * methods, we could select amongst them at this point in time. 569 */ 570 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 571 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 572 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 573 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 574 return(ENXIO); 575 } 576 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 577 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 578 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 579 sc->ciss_cfg->valence); 580 return(ENXIO); 581 } 582 583 /* 584 * Put the board into simple mode, and tell it we're using the low 585 * 4GB of RAM. Set the default interrupt coalescing options. 586 */ 587 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 588 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 589 return(ENXIO); 590 } 591 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 592 sc->ciss_cfg->command_physlimit = 0; 593 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 594 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 595 596 #ifdef __i386__ 597 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 598 #endif 599 600 if (ciss_update_config(sc)) { 601 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 602 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 603 return(ENXIO); 604 } 605 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 606 ciss_printf(sc, 607 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 608 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 609 return(ENXIO); 610 } 611 612 /* 613 * Wait for the adapter to come ready. 614 */ 615 if ((error = ciss_wait_adapter(sc)) != 0) 616 return(error); 617 618 /* 619 * Turn off interrupts before we go routing anything. 620 */ 621 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 622 623 /* 624 * Allocate and set up our interrupt. 625 */ 626 sc->ciss_irq_rid = 0; 627 if ((sc->ciss_irq_resource = 628 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 629 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 630 ciss_printf(sc, "can't allocate interrupt\n"); 631 return(ENXIO); 632 } 633 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 634 INTR_TYPE_CAM|INTR_ENTROPY, ciss_intr, sc, 635 &sc->ciss_intr)) { 636 ciss_printf(sc, "can't set up interrupt\n"); 637 return(ENXIO); 638 } 639 640 /* 641 * Allocate the parent bus DMA tag appropriate for our PCI 642 * interface. 643 * 644 * Note that "simple" adapters can only address within a 32-bit 645 * span. 646 */ 647 if (bus_dma_tag_create(NULL, /* parent */ 648 1, 0, /* alignment, boundary */ 649 BUS_SPACE_MAXADDR, /* lowaddr */ 650 BUS_SPACE_MAXADDR, /* highaddr */ 651 NULL, NULL, /* filter, filterarg */ 652 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 653 CISS_COMMAND_SG_LENGTH, /* nsegments */ 654 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 655 BUS_DMA_ALLOCNOW, /* flags */ 656 NULL, NULL, /* lockfunc, lockarg */ 657 &sc->ciss_parent_dmat)) { 658 ciss_printf(sc, "can't allocate parent DMA tag\n"); 659 return(ENOMEM); 660 } 661 662 /* 663 * Create DMA tag for mapping buffers into adapter-addressable 664 * space. 665 */ 666 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 667 1, 0, /* alignment, boundary */ 668 BUS_SPACE_MAXADDR, /* lowaddr */ 669 BUS_SPACE_MAXADDR, /* highaddr */ 670 NULL, NULL, /* filter, filterarg */ 671 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 672 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 673 0, /* flags */ 674 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 675 &sc->ciss_buffer_dmat)) { 676 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 677 return(ENOMEM); 678 } 679 return(0); 680 } 681 682 /************************************************************************ 683 * Wait for the adapter to come ready. 684 */ 685 static int 686 ciss_wait_adapter(struct ciss_softc *sc) 687 { 688 int i; 689 690 debug_called(1); 691 692 /* 693 * Wait for the adapter to come ready. 694 */ 695 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 696 ciss_printf(sc, "waiting for adapter to come ready...\n"); 697 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 698 DELAY(1000000); /* one second */ 699 if (i > 30) { 700 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 701 return(EIO); 702 } 703 } 704 } 705 return(0); 706 } 707 708 /************************************************************************ 709 * Flush the adapter cache. 710 */ 711 static int 712 ciss_flush_adapter(struct ciss_softc *sc) 713 { 714 struct ciss_request *cr; 715 struct ciss_bmic_flush_cache *cbfc; 716 int error, command_status; 717 718 debug_called(1); 719 720 cr = NULL; 721 cbfc = NULL; 722 723 /* 724 * Build a BMIC request to flush the cache. We don't disable 725 * it, as we may be going to do more I/O (eg. we are emulating 726 * the Synchronise Cache command). 727 */ 728 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 729 error = ENOMEM; 730 goto out; 731 } 732 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 733 (void **)&cbfc, sizeof(*cbfc))) != 0) 734 goto out; 735 736 /* 737 * Submit the request and wait for it to complete. 738 */ 739 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 740 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 741 goto out; 742 } 743 744 /* 745 * Check response. 746 */ 747 ciss_report_request(cr, &command_status, NULL); 748 switch(command_status) { 749 case CISS_CMD_STATUS_SUCCESS: 750 break; 751 default: 752 ciss_printf(sc, "error flushing cache (%s)\n", 753 ciss_name_command_status(command_status)); 754 error = EIO; 755 goto out; 756 } 757 758 out: 759 if (cbfc != NULL) 760 free(cbfc, CISS_MALLOC_CLASS); 761 if (cr != NULL) 762 ciss_release_request(cr); 763 return(error); 764 } 765 766 /************************************************************************ 767 * Allocate memory for the adapter command structures, initialise 768 * the request structures. 769 * 770 * Note that the entire set of commands are allocated in a single 771 * contiguous slab. 772 */ 773 static int 774 ciss_init_requests(struct ciss_softc *sc) 775 { 776 struct ciss_request *cr; 777 int i; 778 779 debug_called(1); 780 781 /* 782 * Calculate the number of request structures/commands we are 783 * going to provide for this adapter. 784 */ 785 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 786 787 if (bootverbose) 788 ciss_printf(sc, "using %d of %d available commands\n", 789 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 790 791 /* 792 * Create the DMA tag for commands. 793 */ 794 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 795 1, 0, /* alignment, boundary */ 796 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 797 BUS_SPACE_MAXADDR, /* highaddr */ 798 NULL, NULL, /* filter, filterarg */ 799 CISS_COMMAND_ALLOC_SIZE * 800 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 801 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 802 BUS_DMA_ALLOCNOW, /* flags */ 803 NULL, NULL, /* lockfunc, lockarg */ 804 &sc->ciss_command_dmat)) { 805 ciss_printf(sc, "can't allocate command DMA tag\n"); 806 return(ENOMEM); 807 } 808 /* 809 * Allocate memory and make it available for DMA. 810 */ 811 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 812 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 813 ciss_printf(sc, "can't allocate command memory\n"); 814 return(ENOMEM); 815 } 816 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 817 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 818 ciss_command_map_helper, sc, 0); 819 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 820 821 /* 822 * Set up the request and command structures, push requests onto 823 * the free queue. 824 */ 825 for (i = 1; i < sc->ciss_max_requests; i++) { 826 cr = &sc->ciss_request[i]; 827 cr->cr_sc = sc; 828 cr->cr_tag = i; 829 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 830 ciss_enqueue_free(cr); 831 } 832 return(0); 833 } 834 835 static void 836 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 837 { 838 struct ciss_softc *sc = (struct ciss_softc *)arg; 839 840 sc->ciss_command_phys = segs->ds_addr; 841 } 842 843 /************************************************************************ 844 * Identify the adapter, print some information about it. 845 */ 846 static int 847 ciss_identify_adapter(struct ciss_softc *sc) 848 { 849 struct ciss_request *cr; 850 int error, command_status; 851 852 debug_called(1); 853 854 cr = NULL; 855 856 /* 857 * Get a request, allocate storage for the adapter data. 858 */ 859 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 860 (void **)&sc->ciss_id, 861 sizeof(*sc->ciss_id))) != 0) 862 goto out; 863 864 /* 865 * Submit the request and wait for it to complete. 866 */ 867 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 868 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 869 goto out; 870 } 871 872 /* 873 * Check response. 874 */ 875 ciss_report_request(cr, &command_status, NULL); 876 switch(command_status) { 877 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 878 break; 879 case CISS_CMD_STATUS_DATA_UNDERRUN: 880 case CISS_CMD_STATUS_DATA_OVERRUN: 881 ciss_printf(sc, "data over/underrun reading adapter information\n"); 882 default: 883 ciss_printf(sc, "error reading adapter information (%s)\n", 884 ciss_name_command_status(command_status)); 885 error = EIO; 886 goto out; 887 } 888 889 /* sanity-check reply */ 890 if (!sc->ciss_id->big_map_supported) { 891 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 892 error = ENXIO; 893 goto out; 894 } 895 896 #if 0 897 /* XXX later revisions may not need this */ 898 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 899 #endif 900 901 /* XXX only really required for old 5300 adapters? */ 902 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 903 904 /* print information */ 905 if (bootverbose) { 906 #if 0 /* XXX proxy volumes??? */ 907 ciss_printf(sc, " %d logical drive%s configured\n", 908 sc->ciss_id->configured_logical_drives, 909 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 910 #endif 911 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 912 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 913 914 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 915 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 916 ciss_printf(sc, " supported I/O methods 0x%b\n", 917 sc->ciss_cfg->supported_methods, 918 "\20\1READY\2simple\3performant\4MEMQ\n"); 919 ciss_printf(sc, " active I/O method 0x%b\n", 920 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 921 ciss_printf(sc, " 4G page base 0x%08x\n", 922 sc->ciss_cfg->command_physlimit); 923 ciss_printf(sc, " interrupt coalesce delay %dus\n", 924 sc->ciss_cfg->interrupt_coalesce_delay); 925 ciss_printf(sc, " interrupt coalesce count %d\n", 926 sc->ciss_cfg->interrupt_coalesce_count); 927 ciss_printf(sc, " max outstanding commands %d\n", 928 sc->ciss_cfg->max_outstanding_commands); 929 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 930 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 931 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 932 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 933 } 934 935 out: 936 if (error) { 937 if (sc->ciss_id != NULL) { 938 free(sc->ciss_id, CISS_MALLOC_CLASS); 939 sc->ciss_id = NULL; 940 } 941 } 942 if (cr != NULL) 943 ciss_release_request(cr); 944 return(error); 945 } 946 947 /************************************************************************ 948 * Helper routine for generating a list of logical and physical luns. 949 */ 950 static struct ciss_lun_report * 951 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 952 { 953 struct ciss_request *cr; 954 struct ciss_command *cc; 955 struct ciss_report_cdb *crc; 956 struct ciss_lun_report *cll; 957 int command_status; 958 int report_size; 959 int error = 0; 960 961 debug_called(1); 962 963 cr = NULL; 964 cll = NULL; 965 966 /* 967 * Get a request, allocate storage for the address list. 968 */ 969 if ((error = ciss_get_request(sc, &cr)) != 0) 970 goto out; 971 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 972 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 973 ciss_printf(sc, "can't allocate memory for lun report\n"); 974 error = ENOMEM; 975 goto out; 976 } 977 978 /* 979 * Build the Report Logical/Physical LUNs command. 980 */ 981 cc = CISS_FIND_COMMAND(cr); 982 cr->cr_data = cll; 983 cr->cr_length = report_size; 984 cr->cr_flags = CISS_REQ_DATAIN; 985 986 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 987 cc->header.address.physical.bus = 0; 988 cc->header.address.physical.target = 0; 989 cc->cdb.cdb_length = sizeof(*crc); 990 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 991 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 992 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 993 cc->cdb.timeout = 30; /* XXX better suggestions? */ 994 995 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 996 bzero(crc, sizeof(*crc)); 997 crc->opcode = opcode; 998 crc->length = htonl(report_size); /* big-endian field */ 999 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1000 1001 /* 1002 * Submit the request and wait for it to complete. (timeout 1003 * here should be much greater than above) 1004 */ 1005 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1006 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1007 goto out; 1008 } 1009 1010 /* 1011 * Check response. Note that data over/underrun is OK. 1012 */ 1013 ciss_report_request(cr, &command_status, NULL); 1014 switch(command_status) { 1015 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1016 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1017 break; 1018 case CISS_CMD_STATUS_DATA_OVERRUN: 1019 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1020 CISS_MAX_LOGICAL); 1021 break; 1022 default: 1023 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1024 ciss_name_command_status(command_status)); 1025 error = EIO; 1026 goto out; 1027 } 1028 ciss_release_request(cr); 1029 cr = NULL; 1030 1031 out: 1032 if (cr != NULL) 1033 ciss_release_request(cr); 1034 if (error && cll != NULL) { 1035 free(cll, CISS_MALLOC_CLASS); 1036 cll = NULL; 1037 } 1038 return(cll); 1039 } 1040 1041 /************************************************************************ 1042 * Find logical drives on the adapter. 1043 */ 1044 static int 1045 ciss_init_logical(struct ciss_softc *sc) 1046 { 1047 struct ciss_lun_report *cll; 1048 int error = 0, i, j; 1049 int ndrives; 1050 1051 debug_called(1); 1052 1053 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1054 CISS_MAX_LOGICAL); 1055 if (cll == NULL) { 1056 error = ENXIO; 1057 goto out; 1058 } 1059 1060 /* sanity-check reply */ 1061 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1062 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1063 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1064 ndrives, CISS_MAX_LOGICAL); 1065 error = ENXIO; 1066 goto out; 1067 } 1068 1069 /* 1070 * Save logical drive information. 1071 */ 1072 if (bootverbose) { 1073 ciss_printf(sc, "%d logical drive%s\n", 1074 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1075 } 1076 1077 sc->ciss_logical = 1078 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1079 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1080 if (sc->ciss_logical == NULL) { 1081 error = ENXIO; 1082 goto out; 1083 } 1084 1085 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1086 sc->ciss_logical[i] = 1087 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1088 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1089 if (sc->ciss_logical[i] == NULL) { 1090 error = ENXIO; 1091 goto out; 1092 } 1093 1094 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1095 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1096 } 1097 1098 1099 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1100 if (i < ndrives) { 1101 struct ciss_ldrive *ld; 1102 int bus, target; 1103 1104 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1105 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1106 ld = &sc->ciss_logical[bus][target]; 1107 1108 ld->cl_address = cll->lun[i]; 1109 ld->cl_controller = &sc->ciss_controllers[bus]; 1110 if (ciss_identify_logical(sc, ld) != 0) 1111 continue; 1112 /* 1113 * If the drive has had media exchanged, we should bring it online. 1114 */ 1115 if (ld->cl_lstatus->media_exchanged) 1116 ciss_accept_media(sc, ld); 1117 1118 } 1119 } 1120 1121 out: 1122 if (cll != NULL) 1123 free(cll, CISS_MALLOC_CLASS); 1124 return(error); 1125 } 1126 1127 static int 1128 ciss_init_physical(struct ciss_softc *sc) 1129 { 1130 struct ciss_lun_report *cll; 1131 int error = 0, i; 1132 int nphys; 1133 int bus, target; 1134 1135 debug_called(1); 1136 1137 bus = 0; 1138 target = 0; 1139 1140 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1141 CISS_MAX_PHYSICAL); 1142 if (cll == NULL) { 1143 error = ENXIO; 1144 goto out; 1145 } 1146 1147 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1148 1149 if (bootverbose) { 1150 ciss_printf(sc, "%d physical device%s\n", 1151 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1152 } 1153 1154 /* 1155 * Figure out the bus mapping. 1156 * Logical buses include both the local logical bus for local arrays and 1157 * proxy buses for remote arrays. Physical buses are numbered by the 1158 * controller and represent physical buses that hold physical devices. 1159 * We shift these bus numbers so that everything fits into a single flat 1160 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1161 * numbers, and the physical bus numbers are shifted to be above that. 1162 * This results in the various driver arrays being indexed as follows: 1163 * 1164 * ciss_controllers[] - indexed by logical bus 1165 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1166 * being shifted by 32. 1167 * ciss_logical[][] - indexed by logical bus 1168 * ciss_physical[][] - indexed by physical bus 1169 * 1170 * XXX This is getting more and more hackish. CISS really doesn't play 1171 * well with a standard SCSI model; devices are addressed via magic 1172 * cookies, not via b/t/l addresses. Since there is no way to store 1173 * the cookie in the CAM device object, we have to keep these lookup 1174 * tables handy so that the devices can be found quickly at the cost 1175 * of wasting memory and having a convoluted lookup scheme. This 1176 * driver should probably be converted to block interface. 1177 */ 1178 /* 1179 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1180 * controller. A proxy controller is another physical controller 1181 * behind the primary PCI controller. We need to know about this 1182 * so that BMIC commands can be properly targeted. There can be 1183 * proxy controllers attached to a single PCI controller, so 1184 * find the highest numbered one so the array can be properly 1185 * sized. 1186 */ 1187 sc->ciss_max_logical_bus = 1; 1188 for (i = 0; i < nphys; i++) { 1189 if (cll->lun[i].physical.extra_address == 0) { 1190 bus = cll->lun[i].physical.bus; 1191 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1192 } else { 1193 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1194 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1195 } 1196 } 1197 1198 sc->ciss_controllers = 1199 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1200 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1201 1202 if (sc->ciss_controllers == NULL) { 1203 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1204 error = ENOMEM; 1205 goto out; 1206 } 1207 1208 /* setup a map of controller addresses */ 1209 for (i = 0; i < nphys; i++) { 1210 if (cll->lun[i].physical.extra_address == 0) { 1211 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1212 } 1213 } 1214 1215 sc->ciss_physical = 1216 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1217 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1218 if (sc->ciss_physical == NULL) { 1219 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1220 error = ENOMEM; 1221 goto out; 1222 } 1223 1224 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1225 sc->ciss_physical[i] = 1226 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1227 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1228 if (sc->ciss_physical[i] == NULL) { 1229 ciss_printf(sc, "Could not allocate memory for target map\n"); 1230 error = ENOMEM; 1231 goto out; 1232 } 1233 } 1234 1235 ciss_filter_physical(sc, cll); 1236 1237 out: 1238 if (cll != NULL) 1239 free(cll, CISS_MALLOC_CLASS); 1240 1241 return(error); 1242 } 1243 1244 static int 1245 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1246 { 1247 u_int32_t ea; 1248 int i, nphys; 1249 int bus, target; 1250 1251 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1252 for (i = 0; i < nphys; i++) { 1253 if (cll->lun[i].physical.extra_address == 0) 1254 continue; 1255 1256 /* 1257 * Filter out devices that we don't want. Level 3 LUNs could 1258 * probably be supported, but the docs don't give enough of a 1259 * hint to know how. 1260 * 1261 * The mode field of the physical address is likely set to have 1262 * hard disks masked out. Honor it unless the user has overridden 1263 * us with the tunable. We also munge the inquiry data for these 1264 * disks so that they only show up as passthrough devices. Keeping 1265 * them visible in this fashion is useful for doing things like 1266 * flashing firmware. 1267 */ 1268 ea = cll->lun[i].physical.extra_address; 1269 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1270 (CISS_EXTRA_MODE2(ea) == 0x3)) 1271 continue; 1272 if ((ciss_expose_hidden_physical == 0) && 1273 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1274 continue; 1275 1276 /* 1277 * Note: CISS firmware numbers physical busses starting at '1', not 1278 * '0'. This numbering is internal to the firmware and is only 1279 * used as a hint here. 1280 */ 1281 bus = CISS_EXTRA_BUS2(ea) - 1; 1282 target = CISS_EXTRA_TARGET2(ea); 1283 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1284 sc->ciss_physical[bus][target].cp_online = 1; 1285 } 1286 1287 return (0); 1288 } 1289 1290 static int 1291 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1292 { 1293 struct ciss_request *cr; 1294 struct ciss_command *cc; 1295 struct scsi_inquiry *inq; 1296 int error; 1297 int command_status; 1298 1299 cr = NULL; 1300 1301 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1302 1303 if ((error = ciss_get_request(sc, &cr)) != 0) 1304 goto out; 1305 1306 cc = CISS_FIND_COMMAND(cr); 1307 cr->cr_data = &ld->cl_geometry; 1308 cr->cr_length = sizeof(ld->cl_geometry); 1309 cr->cr_flags = CISS_REQ_DATAIN; 1310 1311 cc->header.address = ld->cl_address; 1312 cc->cdb.cdb_length = 6; 1313 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1314 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1315 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1316 cc->cdb.timeout = 30; 1317 1318 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1319 inq->opcode = INQUIRY; 1320 inq->byte2 = SI_EVPD; 1321 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1322 inq->length = sizeof(ld->cl_geometry); 1323 1324 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1325 ciss_printf(sc, "error getting geometry (%d)\n", error); 1326 goto out; 1327 } 1328 1329 ciss_report_request(cr, &command_status, NULL); 1330 switch(command_status) { 1331 case CISS_CMD_STATUS_SUCCESS: 1332 case CISS_CMD_STATUS_DATA_UNDERRUN: 1333 break; 1334 case CISS_CMD_STATUS_DATA_OVERRUN: 1335 ciss_printf(sc, "WARNING: Data overrun\n"); 1336 break; 1337 default: 1338 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1339 ciss_name_command_status(command_status)); 1340 break; 1341 } 1342 1343 out: 1344 if (cr != NULL) 1345 ciss_release_request(cr); 1346 return(error); 1347 } 1348 /************************************************************************ 1349 * Identify a logical drive, initialise state related to it. 1350 */ 1351 static int 1352 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1353 { 1354 struct ciss_request *cr; 1355 struct ciss_command *cc; 1356 struct ciss_bmic_cdb *cbc; 1357 int error, command_status; 1358 1359 debug_called(1); 1360 1361 cr = NULL; 1362 1363 /* 1364 * Build a BMIC request to fetch the drive ID. 1365 */ 1366 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1367 (void **)&ld->cl_ldrive, 1368 sizeof(*ld->cl_ldrive))) != 0) 1369 goto out; 1370 cc = CISS_FIND_COMMAND(cr); 1371 cc->header.address = *ld->cl_controller; /* target controller */ 1372 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1373 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1374 1375 /* 1376 * Submit the request and wait for it to complete. 1377 */ 1378 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1379 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1380 goto out; 1381 } 1382 1383 /* 1384 * Check response. 1385 */ 1386 ciss_report_request(cr, &command_status, NULL); 1387 switch(command_status) { 1388 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1389 break; 1390 case CISS_CMD_STATUS_DATA_UNDERRUN: 1391 case CISS_CMD_STATUS_DATA_OVERRUN: 1392 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1393 default: 1394 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1395 ciss_name_command_status(command_status)); 1396 error = EIO; 1397 goto out; 1398 } 1399 ciss_release_request(cr); 1400 cr = NULL; 1401 1402 /* 1403 * Build a CISS BMIC command to get the logical drive status. 1404 */ 1405 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1406 goto out; 1407 1408 /* 1409 * Get the logical drive geometry. 1410 */ 1411 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1412 goto out; 1413 1414 /* 1415 * Print the drive's basic characteristics. 1416 */ 1417 if (bootverbose) { 1418 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1419 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1420 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1421 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1422 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1423 ld->cl_ldrive->block_size)); 1424 1425 ciss_print_ldrive(sc, ld); 1426 } 1427 out: 1428 if (error != 0) { 1429 /* make the drive not-exist */ 1430 ld->cl_status = CISS_LD_NONEXISTENT; 1431 if (ld->cl_ldrive != NULL) { 1432 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1433 ld->cl_ldrive = NULL; 1434 } 1435 if (ld->cl_lstatus != NULL) { 1436 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1437 ld->cl_lstatus = NULL; 1438 } 1439 } 1440 if (cr != NULL) 1441 ciss_release_request(cr); 1442 1443 return(error); 1444 } 1445 1446 /************************************************************************ 1447 * Get status for a logical drive. 1448 * 1449 * XXX should we also do this in response to Test Unit Ready? 1450 */ 1451 static int 1452 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1453 { 1454 struct ciss_request *cr; 1455 struct ciss_command *cc; 1456 struct ciss_bmic_cdb *cbc; 1457 int error, command_status; 1458 1459 /* 1460 * Build a CISS BMIC command to get the logical drive status. 1461 */ 1462 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1463 (void **)&ld->cl_lstatus, 1464 sizeof(*ld->cl_lstatus))) != 0) 1465 goto out; 1466 cc = CISS_FIND_COMMAND(cr); 1467 cc->header.address = *ld->cl_controller; /* target controller */ 1468 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1469 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1470 1471 /* 1472 * Submit the request and wait for it to complete. 1473 */ 1474 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1475 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1476 goto out; 1477 } 1478 1479 /* 1480 * Check response. 1481 */ 1482 ciss_report_request(cr, &command_status, NULL); 1483 switch(command_status) { 1484 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1485 break; 1486 case CISS_CMD_STATUS_DATA_UNDERRUN: 1487 case CISS_CMD_STATUS_DATA_OVERRUN: 1488 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1489 default: 1490 ciss_printf(sc, "error reading logical drive status (%s)\n", 1491 ciss_name_command_status(command_status)); 1492 error = EIO; 1493 goto out; 1494 } 1495 1496 /* 1497 * Set the drive's summary status based on the returned status. 1498 * 1499 * XXX testing shows that a failed JBOD drive comes back at next 1500 * boot in "queued for expansion" mode. WTF? 1501 */ 1502 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1503 1504 out: 1505 if (cr != NULL) 1506 ciss_release_request(cr); 1507 return(error); 1508 } 1509 1510 /************************************************************************ 1511 * Notify the adapter of a config update. 1512 */ 1513 static int 1514 ciss_update_config(struct ciss_softc *sc) 1515 { 1516 int i; 1517 1518 debug_called(1); 1519 1520 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1521 for (i = 0; i < 1000; i++) { 1522 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1523 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1524 return(0); 1525 } 1526 DELAY(1000); 1527 } 1528 return(1); 1529 } 1530 1531 /************************************************************************ 1532 * Accept new media into a logical drive. 1533 * 1534 * XXX The drive has previously been offline; it would be good if we 1535 * could make sure it's not open right now. 1536 */ 1537 static int 1538 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1539 { 1540 struct ciss_request *cr; 1541 struct ciss_command *cc; 1542 struct ciss_bmic_cdb *cbc; 1543 int command_status; 1544 int error = 0, ldrive; 1545 1546 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1547 1548 debug(0, "bringing logical drive %d back online"); 1549 1550 /* 1551 * Build a CISS BMIC command to bring the drive back online. 1552 */ 1553 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1554 NULL, 0)) != 0) 1555 goto out; 1556 cc = CISS_FIND_COMMAND(cr); 1557 cc->header.address = *ld->cl_controller; /* target controller */ 1558 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1559 cbc->log_drive = ldrive; 1560 1561 /* 1562 * Submit the request and wait for it to complete. 1563 */ 1564 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1565 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1566 goto out; 1567 } 1568 1569 /* 1570 * Check response. 1571 */ 1572 ciss_report_request(cr, &command_status, NULL); 1573 switch(command_status) { 1574 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1575 /* we should get a logical drive status changed event here */ 1576 break; 1577 default: 1578 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1579 ciss_name_command_status(command_status)); 1580 break; 1581 } 1582 1583 out: 1584 if (cr != NULL) 1585 ciss_release_request(cr); 1586 return(error); 1587 } 1588 1589 /************************************************************************ 1590 * Release adapter resources. 1591 */ 1592 static void 1593 ciss_free(struct ciss_softc *sc) 1594 { 1595 struct ciss_request *cr; 1596 int i; 1597 1598 debug_called(1); 1599 1600 /* we're going away */ 1601 sc->ciss_flags |= CISS_FLAG_ABORTING; 1602 1603 /* terminate the periodic heartbeat routine */ 1604 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1605 1606 /* cancel the Event Notify chain */ 1607 ciss_notify_abort(sc); 1608 1609 ciss_kill_notify_thread(sc); 1610 1611 /* remove the control device */ 1612 if (sc->ciss_dev_t != NULL) 1613 destroy_dev(sc->ciss_dev_t); 1614 1615 /* free the controller data */ 1616 if (sc->ciss_id != NULL) 1617 free(sc->ciss_id, CISS_MALLOC_CLASS); 1618 1619 /* release I/O resources */ 1620 if (sc->ciss_regs_resource != NULL) 1621 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1622 sc->ciss_regs_rid, sc->ciss_regs_resource); 1623 if (sc->ciss_cfg_resource != NULL) 1624 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1625 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1626 if (sc->ciss_intr != NULL) 1627 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1628 if (sc->ciss_irq_resource != NULL) 1629 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1630 sc->ciss_irq_rid, sc->ciss_irq_resource); 1631 1632 /* destroy DMA tags */ 1633 if (sc->ciss_parent_dmat) 1634 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1635 1636 while ((cr = ciss_dequeue_free(sc)) != NULL) 1637 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1638 if (sc->ciss_buffer_dmat) 1639 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1640 1641 /* destroy command memory and DMA tag */ 1642 if (sc->ciss_command != NULL) { 1643 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1644 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1645 } 1646 if (sc->ciss_command_dmat) 1647 bus_dma_tag_destroy(sc->ciss_command_dmat); 1648 1649 /* disconnect from CAM */ 1650 if (sc->ciss_cam_sim) { 1651 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1652 if (sc->ciss_cam_sim[i]) { 1653 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1654 cam_sim_free(sc->ciss_cam_sim[i], 0); 1655 } 1656 } 1657 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1658 CISS_PHYSICAL_BASE; i++) { 1659 if (sc->ciss_cam_sim[i]) { 1660 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1661 cam_sim_free(sc->ciss_cam_sim[i], 0); 1662 } 1663 } 1664 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1665 } 1666 if (sc->ciss_cam_devq) 1667 cam_simq_free(sc->ciss_cam_devq); 1668 1669 if (sc->ciss_logical) { 1670 for (i = 0; i < sc->ciss_max_logical_bus; i++) 1671 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1672 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1673 } 1674 1675 if (sc->ciss_physical) { 1676 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1677 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1678 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1679 } 1680 1681 if (sc->ciss_controllers) 1682 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1683 } 1684 1685 /************************************************************************ 1686 * Give a command to the adapter. 1687 * 1688 * Note that this uses the simple transport layer directly. If we 1689 * want to add support for other layers, we'll need a switch of some 1690 * sort. 1691 * 1692 * Note that the simple transport layer has no way of refusing a 1693 * command; we only have as many request structures as the adapter 1694 * supports commands, so we don't have to check (this presumes that 1695 * the adapter can handle commands as fast as we throw them at it). 1696 */ 1697 static int 1698 ciss_start(struct ciss_request *cr) 1699 { 1700 struct ciss_command *cc; /* XXX debugging only */ 1701 int error; 1702 1703 cc = CISS_FIND_COMMAND(cr); 1704 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1705 1706 /* 1707 * Map the request's data. 1708 */ 1709 if ((error = ciss_map_request(cr))) 1710 return(error); 1711 1712 #if 0 1713 ciss_print_request(cr); 1714 #endif 1715 1716 return(0); 1717 } 1718 1719 /************************************************************************ 1720 * Fetch completed request(s) from the adapter, queue them for 1721 * completion handling. 1722 * 1723 * Note that this uses the simple transport layer directly. If we 1724 * want to add support for other layers, we'll need a switch of some 1725 * sort. 1726 * 1727 * Note that the simple transport mechanism does not require any 1728 * reentrancy protection; the OPQ read is atomic. If there is a 1729 * chance of a race with something else that might move the request 1730 * off the busy list, then we will have to lock against that 1731 * (eg. timeouts, etc.) 1732 */ 1733 static void 1734 ciss_done(struct ciss_softc *sc) 1735 { 1736 struct ciss_request *cr; 1737 struct ciss_command *cc; 1738 u_int32_t tag, index; 1739 int complete; 1740 1741 debug_called(3); 1742 1743 /* 1744 * Loop quickly taking requests from the adapter and moving them 1745 * from the busy queue to the completed queue. 1746 */ 1747 complete = 0; 1748 for (;;) { 1749 1750 /* see if the OPQ contains anything */ 1751 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1752 break; 1753 1754 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1755 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1756 break; 1757 index = tag >> 2; 1758 debug(2, "completed command %d%s", index, 1759 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1760 if (index >= sc->ciss_max_requests) { 1761 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1762 continue; 1763 } 1764 cr = &(sc->ciss_request[index]); 1765 cc = CISS_FIND_COMMAND(cr); 1766 cc->header.host_tag = tag; /* not updated by adapter */ 1767 if (ciss_remove_busy(cr)) { 1768 /* assume this is garbage out of the adapter */ 1769 ciss_printf(sc, "completed nonbusy request %d\n", index); 1770 } else { 1771 ciss_enqueue_complete(cr); 1772 } 1773 complete = 1; 1774 } 1775 1776 /* 1777 * Invoke completion processing. If we can defer this out of 1778 * interrupt context, that'd be good. 1779 */ 1780 if (complete) 1781 ciss_complete(sc); 1782 } 1783 1784 /************************************************************************ 1785 * Take an interrupt from the adapter. 1786 */ 1787 static void 1788 ciss_intr(void *arg) 1789 { 1790 struct ciss_softc *sc = (struct ciss_softc *)arg; 1791 1792 /* 1793 * The only interrupt we recognise indicates that there are 1794 * entries in the outbound post queue. 1795 */ 1796 ciss_done(sc); 1797 } 1798 1799 /************************************************************************ 1800 * Process completed requests. 1801 * 1802 * Requests can be completed in three fashions: 1803 * 1804 * - by invoking a callback function (cr_complete is non-null) 1805 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1806 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1807 */ 1808 static void 1809 ciss_complete(struct ciss_softc *sc) 1810 { 1811 struct ciss_request *cr; 1812 1813 debug_called(2); 1814 1815 /* 1816 * Loop taking requests off the completed queue and performing 1817 * completion processing on them. 1818 */ 1819 for (;;) { 1820 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1821 break; 1822 ciss_unmap_request(cr); 1823 1824 /* 1825 * If the request has a callback, invoke it. 1826 */ 1827 if (cr->cr_complete != NULL) { 1828 cr->cr_complete(cr); 1829 continue; 1830 } 1831 1832 /* 1833 * If someone is sleeping on this request, wake them up. 1834 */ 1835 if (cr->cr_flags & CISS_REQ_SLEEP) { 1836 cr->cr_flags &= ~CISS_REQ_SLEEP; 1837 wakeup(cr); 1838 continue; 1839 } 1840 1841 /* 1842 * If someone is polling this request for completion, signal. 1843 */ 1844 if (cr->cr_flags & CISS_REQ_POLL) { 1845 cr->cr_flags &= ~CISS_REQ_POLL; 1846 continue; 1847 } 1848 1849 /* 1850 * Give up and throw the request back on the free queue. This 1851 * should never happen; resources will probably be lost. 1852 */ 1853 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1854 ciss_enqueue_free(cr); 1855 } 1856 } 1857 1858 /************************************************************************ 1859 * Report on the completion status of a request, and pass back SCSI 1860 * and command status values. 1861 */ 1862 static int 1863 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1864 { 1865 struct ciss_command *cc; 1866 struct ciss_error_info *ce; 1867 1868 debug_called(2); 1869 1870 cc = CISS_FIND_COMMAND(cr); 1871 ce = (struct ciss_error_info *)&(cc->sg[0]); 1872 1873 /* 1874 * We don't consider data under/overrun an error for the Report 1875 * Logical/Physical LUNs commands. 1876 */ 1877 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1878 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1879 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1880 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1881 debug(2, "ignoring irrelevant under/overrun error"); 1882 } 1883 1884 /* 1885 * Check the command's error bit, if clear, there's no status and 1886 * everything is OK. 1887 */ 1888 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1889 if (scsi_status != NULL) 1890 *scsi_status = SCSI_STATUS_OK; 1891 if (command_status != NULL) 1892 *command_status = CISS_CMD_STATUS_SUCCESS; 1893 return(0); 1894 } else { 1895 if (command_status != NULL) 1896 *command_status = ce->command_status; 1897 if (scsi_status != NULL) { 1898 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1899 *scsi_status = ce->scsi_status; 1900 } else { 1901 *scsi_status = -1; 1902 } 1903 } 1904 if (bootverbose) 1905 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1906 ce->command_status, ciss_name_command_status(ce->command_status), 1907 ce->scsi_status); 1908 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1909 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1910 ce->additional_error_info.invalid_command.offense_size, 1911 ce->additional_error_info.invalid_command.offense_offset, 1912 ce->additional_error_info.invalid_command.offense_value); 1913 } 1914 } 1915 #if 0 1916 ciss_print_request(cr); 1917 #endif 1918 return(1); 1919 } 1920 1921 /************************************************************************ 1922 * Issue a request and don't return until it's completed. 1923 * 1924 * Depending on adapter status, we may poll or sleep waiting for 1925 * completion. 1926 */ 1927 static int 1928 ciss_synch_request(struct ciss_request *cr, int timeout) 1929 { 1930 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1931 return(ciss_wait_request(cr, timeout)); 1932 } else { 1933 return(ciss_poll_request(cr, timeout)); 1934 } 1935 } 1936 1937 /************************************************************************ 1938 * Issue a request and poll for completion. 1939 * 1940 * Timeout in milliseconds. 1941 */ 1942 static int 1943 ciss_poll_request(struct ciss_request *cr, int timeout) 1944 { 1945 int error; 1946 1947 debug_called(2); 1948 1949 cr->cr_flags |= CISS_REQ_POLL; 1950 if ((error = ciss_start(cr)) != 0) 1951 return(error); 1952 1953 do { 1954 ciss_done(cr->cr_sc); 1955 if (!(cr->cr_flags & CISS_REQ_POLL)) 1956 return(0); 1957 DELAY(1000); 1958 } while (timeout-- >= 0); 1959 return(EWOULDBLOCK); 1960 } 1961 1962 /************************************************************************ 1963 * Issue a request and sleep waiting for completion. 1964 * 1965 * Timeout in milliseconds. Note that a spurious wakeup will reset 1966 * the timeout. 1967 */ 1968 static int 1969 ciss_wait_request(struct ciss_request *cr, int timeout) 1970 { 1971 int s, error; 1972 1973 debug_called(2); 1974 1975 cr->cr_flags |= CISS_REQ_SLEEP; 1976 if ((error = ciss_start(cr)) != 0) 1977 return(error); 1978 1979 s = splcam(); 1980 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 1981 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 1982 } 1983 splx(s); 1984 return(error); 1985 } 1986 1987 #if 0 1988 /************************************************************************ 1989 * Abort a request. Note that a potential exists here to race the 1990 * request being completed; the caller must deal with this. 1991 */ 1992 static int 1993 ciss_abort_request(struct ciss_request *ar) 1994 { 1995 struct ciss_request *cr; 1996 struct ciss_command *cc; 1997 struct ciss_message_cdb *cmc; 1998 int error; 1999 2000 debug_called(1); 2001 2002 /* get a request */ 2003 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2004 return(error); 2005 2006 /* build the abort command */ 2007 cc = CISS_FIND_COMMAND(cr); 2008 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2009 cc->header.address.physical.target = 0; 2010 cc->header.address.physical.bus = 0; 2011 cc->cdb.cdb_length = sizeof(*cmc); 2012 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2013 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2014 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2015 cc->cdb.timeout = 30; 2016 2017 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2018 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2019 cmc->type = CISS_MESSAGE_ABORT_TASK; 2020 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2021 2022 /* 2023 * Send the request and wait for a response. If we believe we 2024 * aborted the request OK, clear the flag that indicates it's 2025 * running. 2026 */ 2027 error = ciss_synch_request(cr, 35 * 1000); 2028 if (!error) 2029 error = ciss_report_request(cr, NULL, NULL); 2030 ciss_release_request(cr); 2031 2032 return(error); 2033 } 2034 #endif 2035 2036 2037 /************************************************************************ 2038 * Fetch and initialise a request 2039 */ 2040 static int 2041 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2042 { 2043 struct ciss_request *cr; 2044 2045 debug_called(2); 2046 2047 /* 2048 * Get a request and clean it up. 2049 */ 2050 if ((cr = ciss_dequeue_free(sc)) == NULL) 2051 return(ENOMEM); 2052 2053 cr->cr_data = NULL; 2054 cr->cr_flags = 0; 2055 cr->cr_complete = NULL; 2056 cr->cr_private = NULL; 2057 2058 ciss_preen_command(cr); 2059 *crp = cr; 2060 return(0); 2061 } 2062 2063 static void 2064 ciss_preen_command(struct ciss_request *cr) 2065 { 2066 struct ciss_command *cc; 2067 u_int32_t cmdphys; 2068 2069 /* 2070 * Clean up the command structure. 2071 * 2072 * Note that we set up the error_info structure here, since the 2073 * length can be overwritten by any command. 2074 */ 2075 cc = CISS_FIND_COMMAND(cr); 2076 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2077 cc->header.sg_total = 0; 2078 cc->header.host_tag = cr->cr_tag << 2; 2079 cc->header.host_tag_zeroes = 0; 2080 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2081 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2082 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2083 } 2084 2085 /************************************************************************ 2086 * Release a request to the free list. 2087 */ 2088 static void 2089 ciss_release_request(struct ciss_request *cr) 2090 { 2091 struct ciss_softc *sc; 2092 2093 debug_called(2); 2094 2095 sc = cr->cr_sc; 2096 2097 /* release the request to the free queue */ 2098 ciss_requeue_free(cr); 2099 } 2100 2101 /************************************************************************ 2102 * Allocate a request that will be used to send a BMIC command. Do some 2103 * of the common setup here to avoid duplicating it everywhere else. 2104 */ 2105 static int 2106 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2107 int opcode, void **bufp, size_t bufsize) 2108 { 2109 struct ciss_request *cr; 2110 struct ciss_command *cc; 2111 struct ciss_bmic_cdb *cbc; 2112 void *buf; 2113 int error; 2114 int dataout; 2115 2116 debug_called(2); 2117 2118 cr = NULL; 2119 buf = NULL; 2120 2121 /* 2122 * Get a request. 2123 */ 2124 if ((error = ciss_get_request(sc, &cr)) != 0) 2125 goto out; 2126 2127 /* 2128 * Allocate data storage if requested, determine the data direction. 2129 */ 2130 dataout = 0; 2131 if ((bufsize > 0) && (bufp != NULL)) { 2132 if (*bufp == NULL) { 2133 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2134 error = ENOMEM; 2135 goto out; 2136 } 2137 } else { 2138 buf = *bufp; 2139 dataout = 1; /* we are given a buffer, so we are writing */ 2140 } 2141 } 2142 2143 /* 2144 * Build a CISS BMIC command to get the logical drive ID. 2145 */ 2146 cr->cr_data = buf; 2147 cr->cr_length = bufsize; 2148 if (!dataout) 2149 cr->cr_flags = CISS_REQ_DATAIN; 2150 2151 cc = CISS_FIND_COMMAND(cr); 2152 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2153 cc->header.address.physical.bus = 0; 2154 cc->header.address.physical.target = 0; 2155 cc->cdb.cdb_length = sizeof(*cbc); 2156 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2157 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2158 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2159 cc->cdb.timeout = 0; 2160 2161 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2162 bzero(cbc, sizeof(*cbc)); 2163 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2164 cbc->bmic_opcode = opcode; 2165 cbc->size = htons((u_int16_t)bufsize); 2166 2167 out: 2168 if (error) { 2169 if (cr != NULL) 2170 ciss_release_request(cr); 2171 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2172 free(buf, CISS_MALLOC_CLASS); 2173 } else { 2174 *crp = cr; 2175 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2176 *bufp = buf; 2177 } 2178 return(error); 2179 } 2180 2181 /************************************************************************ 2182 * Handle a command passed in from userspace. 2183 */ 2184 static int 2185 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2186 { 2187 struct ciss_request *cr; 2188 struct ciss_command *cc; 2189 struct ciss_error_info *ce; 2190 int error = 0; 2191 2192 debug_called(1); 2193 2194 cr = NULL; 2195 2196 /* 2197 * Get a request. 2198 */ 2199 if ((error = ciss_get_request(sc, &cr)) != 0) 2200 goto out; 2201 cc = CISS_FIND_COMMAND(cr); 2202 2203 /* 2204 * Allocate an in-kernel databuffer if required, copy in user data. 2205 */ 2206 cr->cr_length = ioc->buf_size; 2207 if (ioc->buf_size > 0) { 2208 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2209 error = ENOMEM; 2210 goto out; 2211 } 2212 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2213 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2214 goto out; 2215 } 2216 } 2217 2218 /* 2219 * Build the request based on the user command. 2220 */ 2221 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2222 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2223 2224 /* XXX anything else to populate here? */ 2225 2226 /* 2227 * Run the command. 2228 */ 2229 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2230 debug(0, "request failed - %d", error); 2231 goto out; 2232 } 2233 2234 /* 2235 * Check to see if the command succeeded. 2236 */ 2237 ce = (struct ciss_error_info *)&(cc->sg[0]); 2238 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2239 bzero(ce, sizeof(*ce)); 2240 2241 /* 2242 * Copy the results back to the user. 2243 */ 2244 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2245 if ((ioc->buf_size > 0) && 2246 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2247 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2248 goto out; 2249 } 2250 2251 /* done OK */ 2252 error = 0; 2253 2254 out: 2255 if ((cr != NULL) && (cr->cr_data != NULL)) 2256 free(cr->cr_data, CISS_MALLOC_CLASS); 2257 if (cr != NULL) 2258 ciss_release_request(cr); 2259 return(error); 2260 } 2261 2262 /************************************************************************ 2263 * Map a request into bus-visible space, initialise the scatter/gather 2264 * list. 2265 */ 2266 static int 2267 ciss_map_request(struct ciss_request *cr) 2268 { 2269 struct ciss_softc *sc; 2270 int error = 0; 2271 2272 debug_called(2); 2273 2274 sc = cr->cr_sc; 2275 2276 /* check that mapping is necessary */ 2277 if (cr->cr_flags & CISS_REQ_MAPPED) 2278 return(0); 2279 2280 cr->cr_flags |= CISS_REQ_MAPPED; 2281 2282 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2283 BUS_DMASYNC_PREWRITE); 2284 2285 if (cr->cr_data != NULL) { 2286 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2287 cr->cr_data, cr->cr_length, 2288 ciss_request_map_helper, cr, 0); 2289 if (error != 0) 2290 return (error); 2291 } else { 2292 /* 2293 * Post the command to the adapter. 2294 */ 2295 ciss_enqueue_busy(cr); 2296 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2297 } 2298 2299 return(0); 2300 } 2301 2302 static void 2303 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2304 { 2305 struct ciss_command *cc; 2306 struct ciss_request *cr; 2307 struct ciss_softc *sc; 2308 int i; 2309 2310 debug_called(2); 2311 2312 cr = (struct ciss_request *)arg; 2313 sc = cr->cr_sc; 2314 cc = CISS_FIND_COMMAND(cr); 2315 2316 for (i = 0; i < nseg; i++) { 2317 cc->sg[i].address = segs[i].ds_addr; 2318 cc->sg[i].length = segs[i].ds_len; 2319 cc->sg[i].extension = 0; 2320 } 2321 /* we leave the s/g table entirely within the command */ 2322 cc->header.sg_in_list = nseg; 2323 cc->header.sg_total = nseg; 2324 2325 if (cr->cr_flags & CISS_REQ_DATAIN) 2326 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2327 if (cr->cr_flags & CISS_REQ_DATAOUT) 2328 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2329 2330 /* 2331 * Post the command to the adapter. 2332 */ 2333 ciss_enqueue_busy(cr); 2334 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2335 } 2336 2337 /************************************************************************ 2338 * Unmap a request from bus-visible space. 2339 */ 2340 static void 2341 ciss_unmap_request(struct ciss_request *cr) 2342 { 2343 struct ciss_softc *sc; 2344 2345 debug_called(2); 2346 2347 sc = cr->cr_sc; 2348 2349 /* check that unmapping is necessary */ 2350 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2351 return; 2352 2353 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2354 BUS_DMASYNC_POSTWRITE); 2355 2356 if (cr->cr_data == NULL) 2357 goto out; 2358 2359 if (cr->cr_flags & CISS_REQ_DATAIN) 2360 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2361 if (cr->cr_flags & CISS_REQ_DATAOUT) 2362 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2363 2364 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2365 out: 2366 cr->cr_flags &= ~CISS_REQ_MAPPED; 2367 } 2368 2369 /************************************************************************ 2370 * Attach the driver to CAM. 2371 * 2372 * We put all the logical drives on a single SCSI bus. 2373 */ 2374 static int 2375 ciss_cam_init(struct ciss_softc *sc) 2376 { 2377 int i, maxbus; 2378 2379 debug_called(1); 2380 2381 /* 2382 * Allocate a devq. We can reuse this for the masked physical 2383 * devices if we decide to export these as well. 2384 */ 2385 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2386 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2387 return(ENOMEM); 2388 } 2389 2390 /* 2391 * Create a SIM. 2392 * 2393 * This naturally wastes a bit of memory. The alternative is to allocate 2394 * and register each bus as it is found, and then track them on a linked 2395 * list. Unfortunately, the driver has a few places where it needs to 2396 * look up the SIM based solely on bus number, and it's unclear whether 2397 * a list traversal would work for these situations. 2398 */ 2399 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2400 CISS_PHYSICAL_BASE); 2401 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2402 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2403 if (sc->ciss_cam_sim == NULL) { 2404 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2405 return(ENOMEM); 2406 } 2407 2408 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2409 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2410 "ciss", sc, 2411 device_get_unit(sc->ciss_dev), 2412 sc->ciss_max_requests - 2, 2413 1, 2414 sc->ciss_cam_devq)) == NULL) { 2415 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2416 return(ENOMEM); 2417 } 2418 2419 /* 2420 * Register bus with this SIM. 2421 */ 2422 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2423 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2424 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2425 return (ENXIO); 2426 } 2427 } 2428 } 2429 2430 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2431 CISS_PHYSICAL_BASE; i++) { 2432 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2433 "ciss", sc, 2434 device_get_unit(sc->ciss_dev), 2435 sc->ciss_max_requests - 2, 2436 1, 2437 sc->ciss_cam_devq)) == NULL) { 2438 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2439 return (ENOMEM); 2440 } 2441 2442 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2443 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2444 return (ENXIO); 2445 } 2446 } 2447 2448 /* 2449 * Initiate a rescan of the bus. 2450 */ 2451 ciss_cam_rescan_all(sc); 2452 2453 return(0); 2454 } 2455 2456 /************************************************************************ 2457 * Initiate a rescan of the 'logical devices' SIM 2458 */ 2459 static void 2460 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2461 { 2462 struct cam_path *path; 2463 union ccb *ccb; 2464 2465 debug_called(1); 2466 2467 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2468 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2469 return; 2470 } 2471 2472 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2473 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2474 ciss_printf(sc, "rescan failed (can't create path)\n"); 2475 free(ccb, M_TEMP); 2476 return; 2477 } 2478 2479 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2480 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2481 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2482 ccb->crcn.flags = CAM_FLAG_NONE; 2483 xpt_action(ccb); 2484 2485 /* scan is now in progress */ 2486 } 2487 2488 static void 2489 ciss_cam_rescan_all(struct ciss_softc *sc) 2490 { 2491 int i; 2492 2493 /* Rescan the logical buses */ 2494 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2495 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2496 /* Rescan the physical buses */ 2497 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2498 CISS_PHYSICAL_BASE; i++) 2499 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2500 } 2501 2502 static void 2503 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2504 { 2505 xpt_free_path(ccb->ccb_h.path); 2506 free(ccb, M_TEMP); 2507 } 2508 2509 /************************************************************************ 2510 * Handle requests coming from CAM 2511 */ 2512 static void 2513 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2514 { 2515 struct ciss_softc *sc; 2516 struct ccb_scsiio *csio; 2517 int bus, target; 2518 int physical; 2519 2520 sc = cam_sim_softc(sim); 2521 bus = cam_sim_bus(sim); 2522 csio = (struct ccb_scsiio *)&ccb->csio; 2523 target = csio->ccb_h.target_id; 2524 physical = CISS_IS_PHYSICAL(bus); 2525 2526 switch (ccb->ccb_h.func_code) { 2527 2528 /* perform SCSI I/O */ 2529 case XPT_SCSI_IO: 2530 if (!ciss_cam_action_io(sim, csio)) 2531 return; 2532 break; 2533 2534 /* perform geometry calculations */ 2535 case XPT_CALC_GEOMETRY: 2536 { 2537 struct ccb_calc_geometry *ccg = &ccb->ccg; 2538 struct ciss_ldrive *ld; 2539 2540 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2541 2542 ld = NULL; 2543 if (!physical) 2544 ld = &sc->ciss_logical[bus][target]; 2545 2546 /* 2547 * Use the cached geometry settings unless the fault tolerance 2548 * is invalid. 2549 */ 2550 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2551 u_int32_t secs_per_cylinder; 2552 2553 ccg->heads = 255; 2554 ccg->secs_per_track = 32; 2555 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2556 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2557 } else { 2558 ccg->heads = ld->cl_geometry.heads; 2559 ccg->secs_per_track = ld->cl_geometry.sectors; 2560 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2561 } 2562 ccb->ccb_h.status = CAM_REQ_CMP; 2563 break; 2564 } 2565 2566 /* handle path attribute inquiry */ 2567 case XPT_PATH_INQ: 2568 { 2569 struct ccb_pathinq *cpi = &ccb->cpi; 2570 2571 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2572 2573 cpi->version_num = 1; 2574 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2575 cpi->target_sprt = 0; 2576 cpi->hba_misc = 0; 2577 cpi->max_target = CISS_MAX_LOGICAL; 2578 cpi->max_lun = 0; /* 'logical drive' channel only */ 2579 cpi->initiator_id = CISS_MAX_LOGICAL; 2580 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2581 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2582 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2583 cpi->unit_number = cam_sim_unit(sim); 2584 cpi->bus_id = cam_sim_bus(sim); 2585 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2586 ccb->ccb_h.status = CAM_REQ_CMP; 2587 break; 2588 } 2589 2590 case XPT_GET_TRAN_SETTINGS: 2591 { 2592 struct ccb_trans_settings *cts = &ccb->cts; 2593 int bus, target; 2594 2595 bus = cam_sim_bus(sim); 2596 target = cts->ccb_h.target_id; 2597 2598 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2599 cts->valid = 0; 2600 2601 /* disconnect always OK */ 2602 cts->flags |= CCB_TRANS_DISC_ENB; 2603 cts->valid |= CCB_TRANS_DISC_VALID; 2604 2605 cts->ccb_h.status = CAM_REQ_CMP; 2606 break; 2607 } 2608 2609 default: /* we can't do this */ 2610 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2611 ccb->ccb_h.status = CAM_REQ_INVALID; 2612 break; 2613 } 2614 2615 xpt_done(ccb); 2616 } 2617 2618 /************************************************************************ 2619 * Handle a CAM SCSI I/O request. 2620 */ 2621 static int 2622 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2623 { 2624 struct ciss_softc *sc; 2625 int bus, target; 2626 struct ciss_request *cr; 2627 struct ciss_command *cc; 2628 int error; 2629 2630 sc = cam_sim_softc(sim); 2631 bus = cam_sim_bus(sim); 2632 target = csio->ccb_h.target_id; 2633 2634 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2635 2636 /* firmware does not support commands > 10 bytes */ 2637 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2638 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2639 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2640 } 2641 2642 /* check that the CDB pointer is not to a physical address */ 2643 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2644 debug(3, " CDB pointer is to physical address"); 2645 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2646 } 2647 2648 /* if there is data transfer, it must be to/from a virtual address */ 2649 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2650 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2651 debug(3, " data pointer is to physical address"); 2652 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2653 } 2654 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2655 debug(3, " data has premature s/g setup"); 2656 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2657 } 2658 } 2659 2660 /* abandon aborted ccbs or those that have failed validation */ 2661 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2662 debug(3, "abandoning CCB due to abort/validation failure"); 2663 return(EINVAL); 2664 } 2665 2666 /* handle emulation of some SCSI commands ourself */ 2667 if (ciss_cam_emulate(sc, csio)) 2668 return(0); 2669 2670 /* 2671 * Get a request to manage this command. If we can't, return the 2672 * ccb, freeze the queue and flag so that we unfreeze it when a 2673 * request completes. 2674 */ 2675 if ((error = ciss_get_request(sc, &cr)) != 0) { 2676 xpt_freeze_simq(sim, 1); 2677 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2678 return(error); 2679 } 2680 2681 /* 2682 * Build the command. 2683 */ 2684 cc = CISS_FIND_COMMAND(cr); 2685 cr->cr_data = csio->data_ptr; 2686 cr->cr_length = csio->dxfer_len; 2687 cr->cr_complete = ciss_cam_complete; 2688 cr->cr_private = csio; 2689 2690 /* 2691 * Target the right logical volume. 2692 */ 2693 if (CISS_IS_PHYSICAL(bus)) 2694 cc->header.address = 2695 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2696 else 2697 cc->header.address = 2698 sc->ciss_logical[bus][target].cl_address; 2699 cc->cdb.cdb_length = csio->cdb_len; 2700 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2701 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2702 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2703 cr->cr_flags = CISS_REQ_DATAOUT; 2704 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2705 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2706 cr->cr_flags = CISS_REQ_DATAIN; 2707 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2708 } else { 2709 cr->cr_flags = 0; 2710 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2711 } 2712 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2713 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2714 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2715 } else { 2716 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2717 } 2718 2719 /* 2720 * Submit the request to the adapter. 2721 * 2722 * Note that this may fail if we're unable to map the request (and 2723 * if we ever learn a transport layer other than simple, may fail 2724 * if the adapter rejects the command). 2725 */ 2726 if ((error = ciss_start(cr)) != 0) { 2727 xpt_freeze_simq(sim, 1); 2728 if (error == EINPROGRESS) { 2729 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2730 error = 0; 2731 } else { 2732 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2733 ciss_release_request(cr); 2734 } 2735 return(error); 2736 } 2737 2738 return(0); 2739 } 2740 2741 /************************************************************************ 2742 * Emulate SCSI commands the adapter doesn't handle as we might like. 2743 */ 2744 static int 2745 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2746 { 2747 int bus, target; 2748 u_int8_t opcode; 2749 2750 target = csio->ccb_h.target_id; 2751 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2752 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2753 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2754 2755 if (CISS_IS_PHYSICAL(bus)) { 2756 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2757 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2758 xpt_done((union ccb *)csio); 2759 return(1); 2760 } else 2761 return(0); 2762 } 2763 2764 /* 2765 * Handle requests for volumes that don't exist or are not online. 2766 * A selection timeout is slightly better than an illegal request. 2767 * Other errors might be better. 2768 */ 2769 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2770 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2771 xpt_done((union ccb *)csio); 2772 return(1); 2773 } 2774 2775 /* if we have to fake Synchronise Cache */ 2776 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2777 /* 2778 * If this is a Synchronise Cache command, typically issued when 2779 * a device is closed, flush the adapter and complete now. 2780 */ 2781 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2782 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2783 ciss_flush_adapter(sc); 2784 csio->ccb_h.status = CAM_REQ_CMP; 2785 xpt_done((union ccb *)csio); 2786 return(1); 2787 } 2788 } 2789 2790 return(0); 2791 } 2792 2793 /************************************************************************ 2794 * Check for possibly-completed commands. 2795 */ 2796 static void 2797 ciss_cam_poll(struct cam_sim *sim) 2798 { 2799 struct ciss_softc *sc = cam_sim_softc(sim); 2800 2801 debug_called(2); 2802 2803 ciss_done(sc); 2804 } 2805 2806 /************************************************************************ 2807 * Handle completion of a command - pass results back through the CCB 2808 */ 2809 static void 2810 ciss_cam_complete(struct ciss_request *cr) 2811 { 2812 struct ciss_softc *sc; 2813 struct ciss_command *cc; 2814 struct ciss_error_info *ce; 2815 struct ccb_scsiio *csio; 2816 int scsi_status; 2817 int command_status; 2818 2819 debug_called(2); 2820 2821 sc = cr->cr_sc; 2822 cc = CISS_FIND_COMMAND(cr); 2823 ce = (struct ciss_error_info *)&(cc->sg[0]); 2824 csio = (struct ccb_scsiio *)cr->cr_private; 2825 2826 /* 2827 * Extract status values from request. 2828 */ 2829 ciss_report_request(cr, &command_status, &scsi_status); 2830 csio->scsi_status = scsi_status; 2831 2832 /* 2833 * Handle specific SCSI status values. 2834 */ 2835 switch(scsi_status) { 2836 /* no status due to adapter error */ 2837 case -1: 2838 debug(0, "adapter error"); 2839 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2840 break; 2841 2842 /* no status due to command completed OK */ 2843 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2844 debug(2, "SCSI_STATUS_OK"); 2845 csio->ccb_h.status = CAM_REQ_CMP; 2846 break; 2847 2848 /* check condition, sense data included */ 2849 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2850 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2851 ce->sense_length, ce->residual_count); 2852 bzero(&csio->sense_data, SSD_FULL_SIZE); 2853 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2854 csio->sense_len = ce->sense_length; 2855 csio->resid = ce->residual_count; 2856 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2857 #ifdef CISS_DEBUG 2858 { 2859 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2860 debug(0, "sense key %x", sns->flags & SSD_KEY); 2861 } 2862 #endif 2863 break; 2864 2865 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2866 debug(0, "SCSI_STATUS_BUSY"); 2867 csio->ccb_h.status = CAM_SCSI_BUSY; 2868 break; 2869 2870 default: 2871 debug(0, "unknown status 0x%x", csio->scsi_status); 2872 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2873 break; 2874 } 2875 2876 /* handle post-command fixup */ 2877 ciss_cam_complete_fixup(sc, csio); 2878 2879 /* tell CAM we're ready for more commands */ 2880 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2881 2882 xpt_done((union ccb *)csio); 2883 ciss_release_request(cr); 2884 } 2885 2886 /******************************************************************************** 2887 * Fix up the result of some commands here. 2888 */ 2889 static void 2890 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2891 { 2892 struct scsi_inquiry_data *inq; 2893 struct ciss_ldrive *cl; 2894 int bus, target; 2895 2896 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2897 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2898 2899 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2900 target = csio->ccb_h.target_id; 2901 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2902 2903 /* 2904 * Don't let hard drives be seen by the DA driver. They will still be 2905 * attached by the PASS driver. 2906 */ 2907 if (CISS_IS_PHYSICAL(bus)) { 2908 if (SID_TYPE(inq) == T_DIRECT) 2909 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2910 return; 2911 } 2912 2913 cl = &sc->ciss_logical[bus][target]; 2914 2915 padstr(inq->vendor, "COMPAQ", 8); 2916 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2917 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2918 } 2919 } 2920 2921 2922 /******************************************************************************** 2923 * Find a peripheral attached at (target) 2924 */ 2925 static struct cam_periph * 2926 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2927 { 2928 struct cam_periph *periph; 2929 struct cam_path *path; 2930 int status; 2931 2932 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2933 target, 0); 2934 if (status == CAM_REQ_CMP) { 2935 periph = cam_periph_find(path, NULL); 2936 xpt_free_path(path); 2937 } else { 2938 periph = NULL; 2939 } 2940 return(periph); 2941 } 2942 2943 /******************************************************************************** 2944 * Name the device at (target) 2945 * 2946 * XXX is this strictly correct? 2947 */ 2948 static int 2949 ciss_name_device(struct ciss_softc *sc, int bus, int target) 2950 { 2951 struct cam_periph *periph; 2952 2953 if (CISS_IS_PHYSICAL(bus)) 2954 return (0); 2955 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 2956 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 2957 periph->periph_name, periph->unit_number); 2958 return(0); 2959 } 2960 sc->ciss_logical[bus][target].cl_name[0] = 0; 2961 return(ENOENT); 2962 } 2963 2964 /************************************************************************ 2965 * Periodic status monitoring. 2966 */ 2967 static void 2968 ciss_periodic(void *arg) 2969 { 2970 struct ciss_softc *sc; 2971 2972 debug_called(1); 2973 2974 sc = (struct ciss_softc *)arg; 2975 2976 /* 2977 * Check the adapter heartbeat. 2978 */ 2979 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2980 sc->ciss_heart_attack++; 2981 debug(0, "adapter heart attack in progress 0x%x/%d", 2982 sc->ciss_heartbeat, sc->ciss_heart_attack); 2983 if (sc->ciss_heart_attack == 3) { 2984 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2985 /* XXX should reset adapter here */ 2986 } 2987 } else { 2988 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2989 sc->ciss_heart_attack = 0; 2990 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2991 } 2992 2993 /* 2994 * If the notify event request has died for some reason, or has 2995 * not started yet, restart it. 2996 */ 2997 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2998 debug(0, "(re)starting Event Notify chain"); 2999 ciss_notify_event(sc); 3000 } 3001 3002 /* 3003 * Reschedule. 3004 */ 3005 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 3006 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 3007 } 3008 3009 /************************************************************************ 3010 * Request a notification response from the adapter. 3011 * 3012 * If (cr) is NULL, this is the first request of the adapter, so 3013 * reset the adapter's message pointer and start with the oldest 3014 * message available. 3015 */ 3016 static void 3017 ciss_notify_event(struct ciss_softc *sc) 3018 { 3019 struct ciss_request *cr; 3020 struct ciss_command *cc; 3021 struct ciss_notify_cdb *cnc; 3022 int error; 3023 3024 debug_called(1); 3025 3026 cr = sc->ciss_periodic_notify; 3027 3028 /* get a request if we don't already have one */ 3029 if (cr == NULL) { 3030 if ((error = ciss_get_request(sc, &cr)) != 0) { 3031 debug(0, "can't get notify event request"); 3032 goto out; 3033 } 3034 sc->ciss_periodic_notify = cr; 3035 cr->cr_complete = ciss_notify_complete; 3036 debug(1, "acquired request %d", cr->cr_tag); 3037 } 3038 3039 /* 3040 * Get a databuffer if we don't already have one, note that the 3041 * adapter command wants a larger buffer than the actual 3042 * structure. 3043 */ 3044 if (cr->cr_data == NULL) { 3045 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3046 debug(0, "can't get notify event request buffer"); 3047 error = ENOMEM; 3048 goto out; 3049 } 3050 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3051 } 3052 3053 /* re-setup the request's command (since we never release it) XXX overkill*/ 3054 ciss_preen_command(cr); 3055 3056 /* (re)build the notify event command */ 3057 cc = CISS_FIND_COMMAND(cr); 3058 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3059 cc->header.address.physical.bus = 0; 3060 cc->header.address.physical.target = 0; 3061 3062 cc->cdb.cdb_length = sizeof(*cnc); 3063 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3064 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3065 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3066 cc->cdb.timeout = 0; /* no timeout, we hope */ 3067 3068 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3069 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3070 cnc->opcode = CISS_OPCODE_READ; 3071 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3072 cnc->timeout = 0; /* no timeout, we hope */ 3073 cnc->synchronous = 0; 3074 cnc->ordered = 0; 3075 cnc->seek_to_oldest = 0; 3076 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3077 cnc->new_only = 1; 3078 else 3079 cnc->new_only = 0; 3080 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3081 3082 /* submit the request */ 3083 error = ciss_start(cr); 3084 3085 out: 3086 if (error) { 3087 if (cr != NULL) { 3088 if (cr->cr_data != NULL) 3089 free(cr->cr_data, CISS_MALLOC_CLASS); 3090 ciss_release_request(cr); 3091 } 3092 sc->ciss_periodic_notify = NULL; 3093 debug(0, "can't submit notify event request"); 3094 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3095 } else { 3096 debug(1, "notify event submitted"); 3097 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3098 } 3099 } 3100 3101 static void 3102 ciss_notify_complete(struct ciss_request *cr) 3103 { 3104 struct ciss_command *cc; 3105 struct ciss_notify *cn; 3106 struct ciss_softc *sc; 3107 int scsi_status; 3108 int command_status; 3109 debug_called(1); 3110 3111 cc = CISS_FIND_COMMAND(cr); 3112 cn = (struct ciss_notify *)cr->cr_data; 3113 sc = cr->cr_sc; 3114 3115 /* 3116 * Report request results, decode status. 3117 */ 3118 ciss_report_request(cr, &command_status, &scsi_status); 3119 3120 /* 3121 * Abort the chain on a fatal error. 3122 * 3123 * XXX which of these are actually errors? 3124 */ 3125 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3126 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3127 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3128 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3129 ciss_name_command_status(command_status)); 3130 ciss_release_request(cr); 3131 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3132 return; 3133 } 3134 3135 /* 3136 * If the adapter gave us a text message, print it. 3137 */ 3138 if (cn->message[0] != 0) 3139 ciss_printf(sc, "*** %.80s\n", cn->message); 3140 3141 debug(0, "notify event class %d subclass %d detail %d", 3142 cn->class, cn->subclass, cn->detail); 3143 3144 /* 3145 * If the response indicates that the notifier has been aborted, 3146 * release the notifier command. 3147 */ 3148 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3149 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3150 (cn->detail == 1)) { 3151 debug(0, "notifier exiting"); 3152 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3153 ciss_release_request(cr); 3154 sc->ciss_periodic_notify = NULL; 3155 wakeup(&sc->ciss_periodic_notify); 3156 } else { 3157 /* Handle notify events in a kernel thread */ 3158 ciss_enqueue_notify(cr); 3159 sc->ciss_periodic_notify = NULL; 3160 wakeup(&sc->ciss_periodic_notify); 3161 wakeup(&sc->ciss_notify); 3162 } 3163 /* 3164 * Send a new notify event command, if we're not aborting. 3165 */ 3166 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3167 ciss_notify_event(sc); 3168 } 3169 } 3170 3171 /************************************************************************ 3172 * Abort the Notify Event chain. 3173 * 3174 * Note that we can't just abort the command in progress; we have to 3175 * explicitly issue an Abort Notify Event command in order for the 3176 * adapter to clean up correctly. 3177 * 3178 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3179 * the chain will not restart itself. 3180 */ 3181 static int 3182 ciss_notify_abort(struct ciss_softc *sc) 3183 { 3184 struct ciss_request *cr; 3185 struct ciss_command *cc; 3186 struct ciss_notify_cdb *cnc; 3187 int error, s, command_status, scsi_status; 3188 3189 debug_called(1); 3190 3191 cr = NULL; 3192 error = 0; 3193 3194 /* verify that there's an outstanding command */ 3195 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3196 goto out; 3197 3198 /* get a command to issue the abort with */ 3199 if ((error = ciss_get_request(sc, &cr))) 3200 goto out; 3201 3202 /* get a buffer for the result */ 3203 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3204 debug(0, "can't get notify event request buffer"); 3205 error = ENOMEM; 3206 goto out; 3207 } 3208 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3209 3210 /* build the CDB */ 3211 cc = CISS_FIND_COMMAND(cr); 3212 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3213 cc->header.address.physical.bus = 0; 3214 cc->header.address.physical.target = 0; 3215 cc->cdb.cdb_length = sizeof(*cnc); 3216 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3217 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3218 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3219 cc->cdb.timeout = 0; /* no timeout, we hope */ 3220 3221 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3222 bzero(cnc, sizeof(*cnc)); 3223 cnc->opcode = CISS_OPCODE_WRITE; 3224 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3225 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3226 3227 ciss_print_request(cr); 3228 3229 /* 3230 * Submit the request and wait for it to complete. 3231 */ 3232 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3233 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3234 goto out; 3235 } 3236 3237 /* 3238 * Check response. 3239 */ 3240 ciss_report_request(cr, &command_status, &scsi_status); 3241 switch(command_status) { 3242 case CISS_CMD_STATUS_SUCCESS: 3243 break; 3244 case CISS_CMD_STATUS_INVALID_COMMAND: 3245 /* 3246 * Some older adapters don't support the CISS version of this 3247 * command. Fall back to using the BMIC version. 3248 */ 3249 error = ciss_notify_abort_bmic(sc); 3250 if (error != 0) 3251 goto out; 3252 break; 3253 3254 case CISS_CMD_STATUS_TARGET_STATUS: 3255 /* 3256 * This can happen if the adapter thinks there wasn't an outstanding 3257 * Notify Event command but we did. We clean up here. 3258 */ 3259 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3260 if (sc->ciss_periodic_notify != NULL) 3261 ciss_release_request(sc->ciss_periodic_notify); 3262 error = 0; 3263 goto out; 3264 } 3265 /* FALLTHROUGH */ 3266 3267 default: 3268 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3269 ciss_name_command_status(command_status)); 3270 error = EIO; 3271 goto out; 3272 } 3273 3274 /* 3275 * Sleep waiting for the notifier command to complete. Note 3276 * that if it doesn't, we may end up in a bad situation, since 3277 * the adapter may deliver it later. Also note that the adapter 3278 * requires the Notify Event command to be cancelled in order to 3279 * maintain internal bookkeeping. 3280 */ 3281 s = splcam(); 3282 while (sc->ciss_periodic_notify != NULL) { 3283 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3284 if (error == EWOULDBLOCK) { 3285 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3286 break; 3287 } 3288 } 3289 splx(s); 3290 3291 out: 3292 /* release the cancel request */ 3293 if (cr != NULL) { 3294 if (cr->cr_data != NULL) 3295 free(cr->cr_data, CISS_MALLOC_CLASS); 3296 ciss_release_request(cr); 3297 } 3298 if (error == 0) 3299 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3300 return(error); 3301 } 3302 3303 /************************************************************************ 3304 * Abort the Notify Event chain using a BMIC command. 3305 */ 3306 static int 3307 ciss_notify_abort_bmic(struct ciss_softc *sc) 3308 { 3309 struct ciss_request *cr; 3310 int error, command_status; 3311 3312 debug_called(1); 3313 3314 cr = NULL; 3315 error = 0; 3316 3317 /* verify that there's an outstanding command */ 3318 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3319 goto out; 3320 3321 /* 3322 * Build a BMIC command to cancel the Notify on Event command. 3323 * 3324 * Note that we are sending a CISS opcode here. Odd. 3325 */ 3326 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3327 NULL, 0)) != 0) 3328 goto out; 3329 3330 /* 3331 * Submit the request and wait for it to complete. 3332 */ 3333 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3334 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3335 goto out; 3336 } 3337 3338 /* 3339 * Check response. 3340 */ 3341 ciss_report_request(cr, &command_status, NULL); 3342 switch(command_status) { 3343 case CISS_CMD_STATUS_SUCCESS: 3344 break; 3345 default: 3346 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3347 ciss_name_command_status(command_status)); 3348 error = EIO; 3349 goto out; 3350 } 3351 3352 out: 3353 if (cr != NULL) 3354 ciss_release_request(cr); 3355 return(error); 3356 } 3357 3358 /************************************************************************ 3359 * Handle rescanning all the logical volumes when a notify event 3360 * causes the drives to come online or offline. 3361 */ 3362 static void 3363 ciss_notify_rescan_logical(struct ciss_softc *sc) 3364 { 3365 struct ciss_lun_report *cll; 3366 struct ciss_ldrive *ld; 3367 int i, j, ndrives; 3368 3369 /* 3370 * We must rescan all logical volumes to get the right logical 3371 * drive address. 3372 */ 3373 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3374 CISS_MAX_LOGICAL); 3375 if (cll == NULL) 3376 return; 3377 3378 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3379 3380 /* 3381 * Delete any of the drives which were destroyed by the 3382 * firmware. 3383 */ 3384 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3385 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3386 ld = &sc->ciss_logical[i][j]; 3387 3388 if (ld->cl_update == 0) 3389 continue; 3390 3391 if (ld->cl_status != CISS_LD_ONLINE) { 3392 ciss_cam_rescan_target(sc, i, j); 3393 ld->cl_update = 0; 3394 if (ld->cl_ldrive) 3395 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3396 if (ld->cl_lstatus) 3397 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3398 3399 ld->cl_ldrive = NULL; 3400 ld->cl_lstatus = NULL; 3401 } 3402 } 3403 } 3404 3405 /* 3406 * Scan for new drives. 3407 */ 3408 for (i = 0; i < ndrives; i++) { 3409 int bus, target; 3410 3411 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3412 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3413 ld = &sc->ciss_logical[bus][target]; 3414 3415 if (ld->cl_update == 0) 3416 continue; 3417 3418 ld->cl_update = 0; 3419 ld->cl_address = cll->lun[i]; 3420 ld->cl_controller = &sc->ciss_controllers[bus]; 3421 if (ciss_identify_logical(sc, ld) == 0) { 3422 ciss_cam_rescan_target(sc, bus, target); 3423 } 3424 } 3425 free(cll, CISS_MALLOC_CLASS); 3426 } 3427 3428 /************************************************************************ 3429 * Handle a notify event relating to the status of a logical drive. 3430 * 3431 * XXX need to be able to defer some of these to properly handle 3432 * calling the "ID Physical drive" command, unless the 'extended' 3433 * drive IDs are always in BIG_MAP format. 3434 */ 3435 static void 3436 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3437 { 3438 struct ciss_ldrive *ld; 3439 int ostatus, bus, target; 3440 3441 debug_called(2); 3442 3443 bus = cn->device.physical.bus; 3444 target = cn->data.logical_status.logical_drive; 3445 ld = &sc->ciss_logical[bus][target]; 3446 3447 switch (cn->subclass) { 3448 case CISS_NOTIFY_LOGICAL_STATUS: 3449 switch (cn->detail) { 3450 case 0: 3451 ciss_name_device(sc, bus, target); 3452 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3453 cn->data.logical_status.logical_drive, ld->cl_name, 3454 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3455 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3456 cn->data.logical_status.spare_state, 3457 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3458 3459 /* 3460 * Update our idea of the drive's status. 3461 */ 3462 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3463 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3464 if (ld->cl_lstatus != NULL) 3465 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3466 3467 /* 3468 * Have CAM rescan the drive if its status has changed. 3469 */ 3470 if (ostatus != ld->cl_status) { 3471 ld->cl_update = 1; 3472 ciss_notify_rescan_logical(sc); 3473 } 3474 3475 break; 3476 3477 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3478 ciss_name_device(sc, bus, target); 3479 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3480 cn->data.logical_status.logical_drive, ld->cl_name); 3481 ciss_accept_media(sc, ld); 3482 3483 ld->cl_update = 1; 3484 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3485 ciss_notify_rescan_logical(sc); 3486 break; 3487 3488 case 2: 3489 case 3: 3490 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3491 cn->data.rebuild_aborted.logical_drive, 3492 ld->cl_name, 3493 (cn->detail == 2) ? "read" : "write"); 3494 break; 3495 } 3496 break; 3497 3498 case CISS_NOTIFY_LOGICAL_ERROR: 3499 if (cn->detail == 0) { 3500 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3501 cn->data.io_error.logical_drive, 3502 ld->cl_name, 3503 cn->data.io_error.failure_bus, 3504 cn->data.io_error.failure_drive); 3505 /* XXX should we take the drive down at this point, or will we be told? */ 3506 } 3507 break; 3508 3509 case CISS_NOTIFY_LOGICAL_SURFACE: 3510 if (cn->detail == 0) 3511 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3512 cn->data.consistency_completed.logical_drive, 3513 ld->cl_name); 3514 break; 3515 } 3516 } 3517 3518 /************************************************************************ 3519 * Handle a notify event relating to the status of a physical drive. 3520 */ 3521 static void 3522 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3523 { 3524 } 3525 3526 /************************************************************************ 3527 * Handle a notify event relating to the status of a physical drive. 3528 */ 3529 static void 3530 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3531 { 3532 struct ciss_lun_report *cll; 3533 int bus, target; 3534 int s; 3535 3536 switch (cn->subclass) { 3537 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3538 case CISS_NOTIFY_HOTPLUG_NONDISK: 3539 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3540 target = 3541 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3542 3543 s = splcam(); 3544 if (cn->detail == 0) { 3545 /* 3546 * Mark the device offline so that it'll start producing selection 3547 * timeouts to the upper layer. 3548 */ 3549 sc->ciss_physical[bus][target].cp_online = 0; 3550 } else { 3551 /* 3552 * Rescan the physical lun list for new items 3553 */ 3554 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3555 CISS_MAX_PHYSICAL); 3556 if (cll == NULL) { 3557 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3558 break; 3559 } 3560 ciss_filter_physical(sc, cll); 3561 } 3562 splx(s); 3563 break; 3564 3565 default: 3566 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3567 return; 3568 } 3569 } 3570 3571 /************************************************************************ 3572 * Handle deferred processing of notify events. Notify events may need 3573 * sleep which is unsafe during an interrupt. 3574 */ 3575 static void 3576 ciss_notify_thread(void *arg) 3577 { 3578 struct ciss_softc *sc; 3579 struct ciss_request *cr; 3580 struct ciss_notify *cn; 3581 int s; 3582 3583 #if __FreeBSD_version >= 500000 3584 mtx_lock(&Giant); 3585 #endif 3586 sc = (struct ciss_softc *)arg; 3587 3588 s = splcam(); 3589 for (;;) { 3590 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3591 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3592 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3593 } 3594 3595 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3596 break; 3597 3598 cr = ciss_dequeue_notify(sc); 3599 splx(s); 3600 3601 if (cr == NULL) 3602 panic("cr null"); 3603 cn = (struct ciss_notify *)cr->cr_data; 3604 3605 switch (cn->class) { 3606 case CISS_NOTIFY_HOTPLUG: 3607 ciss_notify_hotplug(sc, cn); 3608 break; 3609 case CISS_NOTIFY_LOGICAL: 3610 ciss_notify_logical(sc, cn); 3611 break; 3612 case CISS_NOTIFY_PHYSICAL: 3613 ciss_notify_physical(sc, cn); 3614 break; 3615 } 3616 3617 ciss_release_request(cr); 3618 3619 s = splcam(); 3620 } 3621 sc->ciss_notify_thread = NULL; 3622 wakeup(&sc->ciss_notify_thread); 3623 splx(s); 3624 3625 #if __FreeBSD_version >= 500000 3626 mtx_unlock(&Giant); 3627 #endif 3628 kthread_exit(0); 3629 } 3630 3631 /************************************************************************ 3632 * Start the notification kernel thread. 3633 */ 3634 static void 3635 ciss_spawn_notify_thread(struct ciss_softc *sc) 3636 { 3637 3638 #if __FreeBSD_version > 500005 3639 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3640 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3641 device_get_unit(sc->ciss_dev))) 3642 #else 3643 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3644 &sc->ciss_notify_thread, "ciss_notify%d", 3645 device_get_unit(sc->ciss_dev))) 3646 #endif 3647 panic("Could not create notify thread\n"); 3648 } 3649 3650 /************************************************************************ 3651 * Kill the notification kernel thread. 3652 */ 3653 static void 3654 ciss_kill_notify_thread(struct ciss_softc *sc) 3655 { 3656 3657 if (sc->ciss_notify_thread == NULL) 3658 return; 3659 3660 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3661 wakeup(&sc->ciss_notify); 3662 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3663 } 3664 3665 /************************************************************************ 3666 * Print a request. 3667 */ 3668 static void 3669 ciss_print_request(struct ciss_request *cr) 3670 { 3671 struct ciss_softc *sc; 3672 struct ciss_command *cc; 3673 int i; 3674 3675 sc = cr->cr_sc; 3676 cc = CISS_FIND_COMMAND(cr); 3677 3678 ciss_printf(sc, "REQUEST @ %p\n", cr); 3679 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3680 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3681 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3682 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3683 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3684 switch(cc->header.address.mode.mode) { 3685 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3686 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3687 ciss_printf(sc, " physical bus %d target %d\n", 3688 cc->header.address.physical.bus, cc->header.address.physical.target); 3689 break; 3690 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3691 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3692 break; 3693 } 3694 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3695 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3696 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3697 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3698 cc->cdb.cdb_length, 3699 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3700 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3701 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3702 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3703 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3704 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3705 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3706 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3707 3708 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3709 /* XXX print error info */ 3710 } else { 3711 /* since we don't use chained s/g, don't support it here */ 3712 for (i = 0; i < cc->header.sg_in_list; i++) { 3713 if ((i % 4) == 0) 3714 ciss_printf(sc, " "); 3715 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3716 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3717 printf("\n"); 3718 } 3719 } 3720 } 3721 3722 /************************************************************************ 3723 * Print information about the status of a logical drive. 3724 */ 3725 static void 3726 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3727 { 3728 int bus, target, i; 3729 3730 if (ld->cl_lstatus == NULL) { 3731 printf("does not exist\n"); 3732 return; 3733 } 3734 3735 /* print drive status */ 3736 switch(ld->cl_lstatus->status) { 3737 case CISS_LSTATUS_OK: 3738 printf("online\n"); 3739 break; 3740 case CISS_LSTATUS_INTERIM_RECOVERY: 3741 printf("in interim recovery mode\n"); 3742 break; 3743 case CISS_LSTATUS_READY_RECOVERY: 3744 printf("ready to begin recovery\n"); 3745 break; 3746 case CISS_LSTATUS_RECOVERING: 3747 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3748 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3749 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3750 bus, target, ld->cl_lstatus->blocks_to_recover); 3751 break; 3752 case CISS_LSTATUS_EXPANDING: 3753 printf("being expanded, %u blocks remaining\n", 3754 ld->cl_lstatus->blocks_to_recover); 3755 break; 3756 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3757 printf("queued for expansion\n"); 3758 break; 3759 case CISS_LSTATUS_FAILED: 3760 printf("queued for expansion\n"); 3761 break; 3762 case CISS_LSTATUS_WRONG_PDRIVE: 3763 printf("wrong physical drive inserted\n"); 3764 break; 3765 case CISS_LSTATUS_MISSING_PDRIVE: 3766 printf("missing a needed physical drive\n"); 3767 break; 3768 case CISS_LSTATUS_BECOMING_READY: 3769 printf("becoming ready\n"); 3770 break; 3771 } 3772 3773 /* print failed physical drives */ 3774 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3775 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3776 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3777 if (bus == -1) 3778 continue; 3779 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3780 ld->cl_lstatus->drive_failure_map[i]); 3781 } 3782 } 3783 3784 #ifdef CISS_DEBUG 3785 /************************************************************************ 3786 * Print information about the controller/driver. 3787 */ 3788 static void 3789 ciss_print_adapter(struct ciss_softc *sc) 3790 { 3791 int i, j; 3792 3793 ciss_printf(sc, "ADAPTER:\n"); 3794 for (i = 0; i < CISSQ_COUNT; i++) { 3795 ciss_printf(sc, "%s %d/%d\n", 3796 i == 0 ? "free" : 3797 i == 1 ? "busy" : "complete", 3798 sc->ciss_qstat[i].q_length, 3799 sc->ciss_qstat[i].q_max); 3800 } 3801 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3802 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3803 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3804 3805 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3806 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3807 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3808 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3809 } 3810 } 3811 3812 /* XXX Should physical drives be printed out here? */ 3813 3814 for (i = 1; i < sc->ciss_max_requests; i++) 3815 ciss_print_request(sc->ciss_request + i); 3816 } 3817 3818 /* DDB hook */ 3819 static void 3820 ciss_print0(void) 3821 { 3822 struct ciss_softc *sc; 3823 3824 sc = devclass_get_softc(devclass_find("ciss"), 0); 3825 if (sc == NULL) { 3826 printf("no ciss controllers\n"); 3827 } else { 3828 ciss_print_adapter(sc); 3829 } 3830 } 3831 #endif 3832 3833 /************************************************************************ 3834 * Return a name for a logical drive status value. 3835 */ 3836 static const char * 3837 ciss_name_ldrive_status(int status) 3838 { 3839 switch (status) { 3840 case CISS_LSTATUS_OK: 3841 return("OK"); 3842 case CISS_LSTATUS_FAILED: 3843 return("failed"); 3844 case CISS_LSTATUS_NOT_CONFIGURED: 3845 return("not configured"); 3846 case CISS_LSTATUS_INTERIM_RECOVERY: 3847 return("interim recovery"); 3848 case CISS_LSTATUS_READY_RECOVERY: 3849 return("ready for recovery"); 3850 case CISS_LSTATUS_RECOVERING: 3851 return("recovering"); 3852 case CISS_LSTATUS_WRONG_PDRIVE: 3853 return("wrong physical drive inserted"); 3854 case CISS_LSTATUS_MISSING_PDRIVE: 3855 return("missing physical drive"); 3856 case CISS_LSTATUS_EXPANDING: 3857 return("expanding"); 3858 case CISS_LSTATUS_BECOMING_READY: 3859 return("becoming ready"); 3860 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3861 return("queued for expansion"); 3862 } 3863 return("unknown status"); 3864 } 3865 3866 /************************************************************************ 3867 * Return an online/offline/nonexistent value for a logical drive 3868 * status value. 3869 */ 3870 static int 3871 ciss_decode_ldrive_status(int status) 3872 { 3873 switch(status) { 3874 case CISS_LSTATUS_NOT_CONFIGURED: 3875 return(CISS_LD_NONEXISTENT); 3876 3877 case CISS_LSTATUS_OK: 3878 case CISS_LSTATUS_INTERIM_RECOVERY: 3879 case CISS_LSTATUS_READY_RECOVERY: 3880 case CISS_LSTATUS_RECOVERING: 3881 case CISS_LSTATUS_EXPANDING: 3882 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3883 return(CISS_LD_ONLINE); 3884 3885 case CISS_LSTATUS_FAILED: 3886 case CISS_LSTATUS_WRONG_PDRIVE: 3887 case CISS_LSTATUS_MISSING_PDRIVE: 3888 case CISS_LSTATUS_BECOMING_READY: 3889 default: 3890 return(CISS_LD_OFFLINE); 3891 } 3892 } 3893 3894 3895 /************************************************************************ 3896 * Return a name for a logical drive's organisation. 3897 */ 3898 static const char * 3899 ciss_name_ldrive_org(int org) 3900 { 3901 switch(org) { 3902 case CISS_LDRIVE_RAID0: 3903 return("RAID 0"); 3904 case CISS_LDRIVE_RAID1: 3905 return("RAID 1"); 3906 case CISS_LDRIVE_RAID4: 3907 return("RAID 4"); 3908 case CISS_LDRIVE_RAID5: 3909 return("RAID 5"); 3910 case CISS_LDRIVE_RAID51: 3911 return("RAID 5+1"); 3912 case CISS_LDRIVE_RAIDADG: 3913 return("RAID ADG"); 3914 } 3915 return("unkown"); 3916 } 3917 3918 /************************************************************************ 3919 * Return a name for a command status value. 3920 */ 3921 static const char * 3922 ciss_name_command_status(int status) 3923 { 3924 switch(status) { 3925 case CISS_CMD_STATUS_SUCCESS: 3926 return("success"); 3927 case CISS_CMD_STATUS_TARGET_STATUS: 3928 return("target status"); 3929 case CISS_CMD_STATUS_DATA_UNDERRUN: 3930 return("data underrun"); 3931 case CISS_CMD_STATUS_DATA_OVERRUN: 3932 return("data overrun"); 3933 case CISS_CMD_STATUS_INVALID_COMMAND: 3934 return("invalid command"); 3935 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3936 return("protocol error"); 3937 case CISS_CMD_STATUS_HARDWARE_ERROR: 3938 return("hardware error"); 3939 case CISS_CMD_STATUS_CONNECTION_LOST: 3940 return("connection lost"); 3941 case CISS_CMD_STATUS_ABORTED: 3942 return("aborted"); 3943 case CISS_CMD_STATUS_ABORT_FAILED: 3944 return("abort failed"); 3945 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3946 return("unsolicited abort"); 3947 case CISS_CMD_STATUS_TIMEOUT: 3948 return("timeout"); 3949 case CISS_CMD_STATUS_UNABORTABLE: 3950 return("unabortable"); 3951 } 3952 return("unknown status"); 3953 } 3954 3955 /************************************************************************ 3956 * Handle an open on the control device. 3957 */ 3958 static int 3959 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 3960 { 3961 struct ciss_softc *sc; 3962 3963 debug_called(1); 3964 3965 sc = (struct ciss_softc *)dev->si_drv1; 3966 3967 /* we might want to veto if someone already has us open */ 3968 3969 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3970 return(0); 3971 } 3972 3973 /************************************************************************ 3974 * Handle the last close on the control device. 3975 */ 3976 static int 3977 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 3978 { 3979 struct ciss_softc *sc; 3980 3981 debug_called(1); 3982 3983 sc = (struct ciss_softc *)dev->si_drv1; 3984 3985 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3986 return (0); 3987 } 3988 3989 /******************************************************************************** 3990 * Handle adapter-specific control operations. 3991 * 3992 * Note that the API here is compatible with the Linux driver, in order to 3993 * simplify the porting of Compaq's userland tools. 3994 */ 3995 static int 3996 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 3997 { 3998 struct ciss_softc *sc; 3999 int error; 4000 4001 debug_called(1); 4002 4003 sc = (struct ciss_softc *)dev->si_drv1; 4004 error = 0; 4005 4006 switch(cmd) { 4007 case CCISS_GETPCIINFO: 4008 { 4009 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4010 4011 pis->bus = pci_get_bus(sc->ciss_dev); 4012 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4013 pis->board_id = pci_get_devid(sc->ciss_dev); 4014 4015 break; 4016 } 4017 4018 case CCISS_GETINTINFO: 4019 { 4020 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4021 4022 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4023 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4024 4025 break; 4026 } 4027 4028 case CCISS_SETINTINFO: 4029 { 4030 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4031 4032 if ((cis->delay == 0) && (cis->count == 0)) { 4033 error = EINVAL; 4034 break; 4035 } 4036 4037 /* 4038 * XXX apparently this is only safe if the controller is idle, 4039 * we should suspend it before doing this. 4040 */ 4041 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4042 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4043 4044 if (ciss_update_config(sc)) 4045 error = EIO; 4046 4047 /* XXX resume the controller here */ 4048 break; 4049 } 4050 4051 case CCISS_GETNODENAME: 4052 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4053 sizeof(NodeName_type)); 4054 break; 4055 4056 case CCISS_SETNODENAME: 4057 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4058 sizeof(NodeName_type)); 4059 if (ciss_update_config(sc)) 4060 error = EIO; 4061 break; 4062 4063 case CCISS_GETHEARTBEAT: 4064 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4065 break; 4066 4067 case CCISS_GETBUSTYPES: 4068 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4069 break; 4070 4071 case CCISS_GETFIRMVER: 4072 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4073 sizeof(FirmwareVer_type)); 4074 break; 4075 4076 case CCISS_GETDRIVERVER: 4077 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4078 break; 4079 4080 case CCISS_REVALIDVOLS: 4081 /* 4082 * This is a bit ugly; to do it "right" we really need 4083 * to find any disks that have changed, kick CAM off them, 4084 * then rescan only these disks. It'd be nice if they 4085 * a) told us which disk(s) they were going to play with, 4086 * and b) which ones had arrived. 8( 4087 */ 4088 break; 4089 4090 case CCISS_PASSTHRU: 4091 error = ciss_user_command(sc, (IOCTL_Command_struct *)addr); 4092 break; 4093 4094 default: 4095 debug(0, "unknown ioctl 0x%lx", cmd); 4096 4097 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4098 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4099 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4100 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4101 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4102 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4103 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4104 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4105 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4106 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4107 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4108 4109 error = ENOIOCTL; 4110 break; 4111 } 4112 4113 return(error); 4114 } 4115