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 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/clock.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_init_sysctl(struct ciss_softc *sc); 134 static void ciss_soft_reset(struct ciss_softc *sc); 135 static void ciss_free(struct ciss_softc *sc); 136 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 137 static void ciss_kill_notify_thread(struct ciss_softc *sc); 138 139 /* request submission/completion */ 140 static int ciss_start(struct ciss_request *cr); 141 static void ciss_done(struct ciss_softc *sc); 142 static void ciss_intr(void *arg); 143 static void ciss_complete(struct ciss_softc *sc); 144 static int ciss_report_request(struct ciss_request *cr, int *command_status, 145 int *scsi_status); 146 static int ciss_synch_request(struct ciss_request *cr, int timeout); 147 static int ciss_poll_request(struct ciss_request *cr, int timeout); 148 static int ciss_wait_request(struct ciss_request *cr, int timeout); 149 #if 0 150 static int ciss_abort_request(struct ciss_request *cr); 151 #endif 152 153 /* request queueing */ 154 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 155 static void ciss_preen_command(struct ciss_request *cr); 156 static void ciss_release_request(struct ciss_request *cr); 157 158 /* request helpers */ 159 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 160 int opcode, void **bufp, size_t bufsize); 161 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 162 163 /* DMA map/unmap */ 164 static int ciss_map_request(struct ciss_request *cr); 165 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 166 int nseg, int error); 167 static void ciss_unmap_request(struct ciss_request *cr); 168 169 /* CAM interface */ 170 static int ciss_cam_init(struct ciss_softc *sc); 171 static void ciss_cam_rescan_target(struct ciss_softc *sc, 172 int bus, int target); 173 static void ciss_cam_rescan_all(struct ciss_softc *sc); 174 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 175 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 176 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 177 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 178 static void ciss_cam_poll(struct cam_sim *sim); 179 static void ciss_cam_complete(struct ciss_request *cr); 180 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 182 int bus, int target); 183 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 184 185 /* periodic status monitoring */ 186 static void ciss_periodic(void *arg); 187 static void ciss_notify_event(struct ciss_softc *sc); 188 static void ciss_notify_complete(struct ciss_request *cr); 189 static int ciss_notify_abort(struct ciss_softc *sc); 190 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 191 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 192 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 193 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 194 195 /* debugging output */ 196 static void ciss_print_request(struct ciss_request *cr); 197 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 198 static const char *ciss_name_ldrive_status(int status); 199 static int ciss_decode_ldrive_status(int status); 200 static const char *ciss_name_ldrive_org(int org); 201 static const char *ciss_name_command_status(int status); 202 203 /* 204 * PCI bus interface. 205 */ 206 static device_method_t ciss_methods[] = { 207 /* Device interface */ 208 DEVMETHOD(device_probe, ciss_probe), 209 DEVMETHOD(device_attach, ciss_attach), 210 DEVMETHOD(device_detach, ciss_detach), 211 DEVMETHOD(device_shutdown, ciss_shutdown), 212 { 0, 0 } 213 }; 214 215 static driver_t ciss_pci_driver = { 216 "ciss", 217 ciss_methods, 218 sizeof(struct ciss_softc) 219 }; 220 221 static devclass_t ciss_devclass; 222 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 223 224 /* 225 * Control device interface. 226 */ 227 static d_open_t ciss_open; 228 static d_close_t ciss_close; 229 static d_ioctl_t ciss_ioctl; 230 231 static struct cdevsw ciss_cdevsw = { 232 .d_version = D_VERSION, 233 .d_flags = D_NEEDGIANT, 234 .d_open = ciss_open, 235 .d_close = ciss_close, 236 .d_ioctl = ciss_ioctl, 237 .d_name = "ciss", 238 }; 239 240 /* 241 * This tunable can be set at boot time and controls whether physical devices 242 * that are marked hidden by the firmware should be exposed anyways. 243 */ 244 static unsigned int ciss_expose_hidden_physical = 0; 245 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 246 247 /************************************************************************ 248 * CISS adapters amazingly don't have a defined programming interface 249 * value. (One could say some very despairing things about PCI and 250 * people just not getting the general idea.) So we are forced to 251 * stick with matching against subvendor/subdevice, and thus have to 252 * be updated for every new CISS adapter that appears. 253 */ 254 #define CISS_BOARD_SA5 (1<<0) 255 #define CISS_BOARD_SA5B (1<<1) 256 257 static struct 258 { 259 u_int16_t subvendor; 260 u_int16_t subdevice; 261 int flags; 262 char *desc; 263 } ciss_vendor_data[] = { 264 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 265 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 266 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 267 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 268 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 269 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 270 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 271 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 272 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 273 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 274 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 275 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 276 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 277 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 278 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array E400" }, 279 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 280 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 281 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array" }, 282 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 287 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 288 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0, 0, 0, NULL } 291 }; 292 293 /************************************************************************ 294 * Find a match for the device in our list of known adapters. 295 */ 296 static int 297 ciss_lookup(device_t dev) 298 { 299 int i; 300 301 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 302 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 303 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 304 return(i); 305 } 306 return(-1); 307 } 308 309 /************************************************************************ 310 * Match a known CISS adapter. 311 */ 312 static int 313 ciss_probe(device_t dev) 314 { 315 int i; 316 317 i = ciss_lookup(dev); 318 if (i != -1) { 319 device_set_desc(dev, ciss_vendor_data[i].desc); 320 return(BUS_PROBE_DEFAULT); 321 } 322 return(ENOENT); 323 } 324 325 /************************************************************************ 326 * Attach the driver to this adapter. 327 */ 328 static int 329 ciss_attach(device_t dev) 330 { 331 struct ciss_softc *sc; 332 int i, error; 333 334 debug_called(1); 335 336 #ifdef CISS_DEBUG 337 /* print structure/union sizes */ 338 debug_struct(ciss_command); 339 debug_struct(ciss_header); 340 debug_union(ciss_device_address); 341 debug_struct(ciss_cdb); 342 debug_struct(ciss_report_cdb); 343 debug_struct(ciss_notify_cdb); 344 debug_struct(ciss_notify); 345 debug_struct(ciss_message_cdb); 346 debug_struct(ciss_error_info_pointer); 347 debug_struct(ciss_error_info); 348 debug_struct(ciss_sg_entry); 349 debug_struct(ciss_config_table); 350 debug_struct(ciss_bmic_cdb); 351 debug_struct(ciss_bmic_id_ldrive); 352 debug_struct(ciss_bmic_id_lstatus); 353 debug_struct(ciss_bmic_id_table); 354 debug_struct(ciss_bmic_id_pdrive); 355 debug_struct(ciss_bmic_blink_pdrive); 356 debug_struct(ciss_bmic_flush_cache); 357 debug_const(CISS_MAX_REQUESTS); 358 debug_const(CISS_MAX_LOGICAL); 359 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 360 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 361 debug_const(CISS_COMMAND_ALLOC_SIZE); 362 debug_const(CISS_COMMAND_SG_LENGTH); 363 364 debug_type(cciss_pci_info_struct); 365 debug_type(cciss_coalint_struct); 366 debug_type(cciss_coalint_struct); 367 debug_type(NodeName_type); 368 debug_type(NodeName_type); 369 debug_type(Heartbeat_type); 370 debug_type(BusTypes_type); 371 debug_type(FirmwareVer_type); 372 debug_type(DriverVer_type); 373 debug_type(IOCTL_Command_struct); 374 #endif 375 376 sc = device_get_softc(dev); 377 sc->ciss_dev = dev; 378 379 /* 380 * Work out adapter type. 381 */ 382 i = ciss_lookup(dev); 383 if (i < 0) { 384 ciss_printf(sc, "unknown adapter type\n"); 385 error = ENXIO; 386 goto out; 387 } 388 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 389 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 390 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 391 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 392 } else { 393 /* really an error on our part */ 394 ciss_printf(sc, "unable to determine hardware type\n"); 395 error = ENXIO; 396 goto out; 397 } 398 399 /* 400 * Do PCI-specific init. 401 */ 402 if ((error = ciss_init_pci(sc)) != 0) 403 goto out; 404 405 /* 406 * Initialise driver queues. 407 */ 408 ciss_initq_free(sc); 409 ciss_initq_busy(sc); 410 ciss_initq_complete(sc); 411 ciss_initq_notify(sc); 412 413 /* 414 * Initalize device sysctls. 415 */ 416 ciss_init_sysctl(sc); 417 418 /* 419 * Initialise command/request pool. 420 */ 421 if ((error = ciss_init_requests(sc)) != 0) 422 goto out; 423 424 /* 425 * Get adapter information. 426 */ 427 if ((error = ciss_identify_adapter(sc)) != 0) 428 goto out; 429 430 /* 431 * Find all the physical devices. 432 */ 433 if ((error = ciss_init_physical(sc)) != 0) 434 goto out; 435 436 /* 437 * Build our private table of logical devices. 438 */ 439 if ((error = ciss_init_logical(sc)) != 0) 440 goto out; 441 442 /* 443 * Enable interrupts so that the CAM scan can complete. 444 */ 445 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 446 447 /* 448 * Initialise the CAM interface. 449 */ 450 if ((error = ciss_cam_init(sc)) != 0) 451 goto out; 452 453 /* 454 * Start the heartbeat routine and event chain. 455 */ 456 ciss_periodic(sc); 457 458 /* 459 * Create the control device. 460 */ 461 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 462 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 463 "ciss%d", device_get_unit(sc->ciss_dev)); 464 sc->ciss_dev_t->si_drv1 = sc; 465 466 /* 467 * The adapter is running; synchronous commands can now sleep 468 * waiting for an interrupt to signal completion. 469 */ 470 sc->ciss_flags |= CISS_FLAG_RUNNING; 471 472 ciss_spawn_notify_thread(sc); 473 474 error = 0; 475 out: 476 if (error != 0) 477 ciss_free(sc); 478 return(error); 479 } 480 481 /************************************************************************ 482 * Detach the driver from this adapter. 483 */ 484 static int 485 ciss_detach(device_t dev) 486 { 487 struct ciss_softc *sc = device_get_softc(dev); 488 489 debug_called(1); 490 491 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 492 return (EBUSY); 493 494 /* flush adapter cache */ 495 ciss_flush_adapter(sc); 496 497 /* release all resources */ 498 ciss_free(sc); 499 500 return(0); 501 } 502 503 /************************************************************************ 504 * Prepare adapter for system shutdown. 505 */ 506 static int 507 ciss_shutdown(device_t dev) 508 { 509 struct ciss_softc *sc = device_get_softc(dev); 510 511 debug_called(1); 512 513 /* flush adapter cache */ 514 ciss_flush_adapter(sc); 515 516 if (sc->ciss_soft_reset) 517 ciss_soft_reset(sc); 518 519 return(0); 520 } 521 522 static void 523 ciss_init_sysctl(struct ciss_softc *sc) 524 { 525 526 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 527 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 528 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 529 } 530 531 /************************************************************************ 532 * Perform PCI-specific attachment actions. 533 */ 534 static int 535 ciss_init_pci(struct ciss_softc *sc) 536 { 537 uintptr_t cbase, csize, cofs; 538 int error; 539 540 debug_called(1); 541 542 /* 543 * Allocate register window first (we need this to find the config 544 * struct). 545 */ 546 error = ENXIO; 547 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 548 if ((sc->ciss_regs_resource = 549 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 550 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 551 ciss_printf(sc, "can't allocate register window\n"); 552 return(ENXIO); 553 } 554 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 555 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 556 557 /* 558 * Find the BAR holding the config structure. If it's not the one 559 * we already mapped for registers, map it too. 560 */ 561 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 562 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 563 if ((sc->ciss_cfg_resource = 564 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 565 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 566 ciss_printf(sc, "can't allocate config window\n"); 567 return(ENXIO); 568 } 569 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 570 csize = rman_get_end(sc->ciss_cfg_resource) - 571 rman_get_start(sc->ciss_cfg_resource) + 1; 572 } else { 573 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 574 csize = rman_get_end(sc->ciss_regs_resource) - 575 rman_get_start(sc->ciss_regs_resource) + 1; 576 } 577 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 578 579 /* 580 * Use the base/size/offset values we just calculated to 581 * sanity-check the config structure. If it's OK, point to it. 582 */ 583 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 584 ciss_printf(sc, "config table outside window\n"); 585 return(ENXIO); 586 } 587 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 588 debug(1, "config struct at %p", sc->ciss_cfg); 589 590 /* 591 * Validate the config structure. If we supported other transport 592 * methods, we could select amongst them at this point in time. 593 */ 594 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 595 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 596 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 597 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 598 return(ENXIO); 599 } 600 if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) || 601 (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) { 602 ciss_printf(sc, "adapter interface specification (%d) unsupported\n", 603 sc->ciss_cfg->valence); 604 return(ENXIO); 605 } 606 607 /* 608 * Put the board into simple mode, and tell it we're using the low 609 * 4GB of RAM. Set the default interrupt coalescing options. 610 */ 611 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 612 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 613 return(ENXIO); 614 } 615 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 616 sc->ciss_cfg->command_physlimit = 0; 617 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 618 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 619 620 #ifdef __i386__ 621 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 622 #endif 623 624 if (ciss_update_config(sc)) { 625 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 626 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 627 return(ENXIO); 628 } 629 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 630 ciss_printf(sc, 631 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 632 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 633 return(ENXIO); 634 } 635 636 /* 637 * Wait for the adapter to come ready. 638 */ 639 if ((error = ciss_wait_adapter(sc)) != 0) 640 return(error); 641 642 /* 643 * Turn off interrupts before we go routing anything. 644 */ 645 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 646 647 /* 648 * Allocate and set up our interrupt. 649 */ 650 sc->ciss_irq_rid = 0; 651 if ((sc->ciss_irq_resource = 652 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 653 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 654 ciss_printf(sc, "can't allocate interrupt\n"); 655 return(ENXIO); 656 } 657 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 658 INTR_TYPE_CAM|INTR_ENTROPY, ciss_intr, sc, 659 &sc->ciss_intr)) { 660 ciss_printf(sc, "can't set up interrupt\n"); 661 return(ENXIO); 662 } 663 664 /* 665 * Allocate the parent bus DMA tag appropriate for our PCI 666 * interface. 667 * 668 * Note that "simple" adapters can only address within a 32-bit 669 * span. 670 */ 671 if (bus_dma_tag_create(NULL, /* parent */ 672 1, 0, /* alignment, boundary */ 673 BUS_SPACE_MAXADDR, /* lowaddr */ 674 BUS_SPACE_MAXADDR, /* highaddr */ 675 NULL, NULL, /* filter, filterarg */ 676 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 677 CISS_COMMAND_SG_LENGTH, /* nsegments */ 678 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 679 BUS_DMA_ALLOCNOW, /* flags */ 680 NULL, NULL, /* lockfunc, lockarg */ 681 &sc->ciss_parent_dmat)) { 682 ciss_printf(sc, "can't allocate parent DMA tag\n"); 683 return(ENOMEM); 684 } 685 686 /* 687 * Create DMA tag for mapping buffers into adapter-addressable 688 * space. 689 */ 690 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 691 1, 0, /* alignment, boundary */ 692 BUS_SPACE_MAXADDR, /* lowaddr */ 693 BUS_SPACE_MAXADDR, /* highaddr */ 694 NULL, NULL, /* filter, filterarg */ 695 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 696 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 697 0, /* flags */ 698 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 699 &sc->ciss_buffer_dmat)) { 700 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 701 return(ENOMEM); 702 } 703 return(0); 704 } 705 706 /************************************************************************ 707 * Wait for the adapter to come ready. 708 */ 709 static int 710 ciss_wait_adapter(struct ciss_softc *sc) 711 { 712 int i; 713 714 debug_called(1); 715 716 /* 717 * Wait for the adapter to come ready. 718 */ 719 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 720 ciss_printf(sc, "waiting for adapter to come ready...\n"); 721 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 722 DELAY(1000000); /* one second */ 723 if (i > 30) { 724 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 725 return(EIO); 726 } 727 } 728 } 729 return(0); 730 } 731 732 /************************************************************************ 733 * Flush the adapter cache. 734 */ 735 static int 736 ciss_flush_adapter(struct ciss_softc *sc) 737 { 738 struct ciss_request *cr; 739 struct ciss_bmic_flush_cache *cbfc; 740 int error, command_status; 741 742 debug_called(1); 743 744 cr = NULL; 745 cbfc = NULL; 746 747 /* 748 * Build a BMIC request to flush the cache. We don't disable 749 * it, as we may be going to do more I/O (eg. we are emulating 750 * the Synchronise Cache command). 751 */ 752 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 753 error = ENOMEM; 754 goto out; 755 } 756 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 757 (void **)&cbfc, sizeof(*cbfc))) != 0) 758 goto out; 759 760 /* 761 * Submit the request and wait for it to complete. 762 */ 763 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 764 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 765 goto out; 766 } 767 768 /* 769 * Check response. 770 */ 771 ciss_report_request(cr, &command_status, NULL); 772 switch(command_status) { 773 case CISS_CMD_STATUS_SUCCESS: 774 break; 775 default: 776 ciss_printf(sc, "error flushing cache (%s)\n", 777 ciss_name_command_status(command_status)); 778 error = EIO; 779 goto out; 780 } 781 782 out: 783 if (cbfc != NULL) 784 free(cbfc, CISS_MALLOC_CLASS); 785 if (cr != NULL) 786 ciss_release_request(cr); 787 return(error); 788 } 789 790 static void 791 ciss_soft_reset(struct ciss_softc *sc) 792 { 793 struct ciss_request *cr = NULL; 794 struct ciss_command *cc; 795 int i, error = 0; 796 797 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 798 /* only reset proxy controllers */ 799 if (sc->ciss_controllers[i].physical.bus == 0) 800 continue; 801 802 if ((error = ciss_get_request(sc, &cr)) != 0) 803 break; 804 805 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 806 NULL, 0)) != 0) 807 break; 808 809 cc = CISS_FIND_COMMAND(cr); 810 cc->header.address = sc->ciss_controllers[i]; 811 812 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 813 break; 814 815 ciss_release_request(cr); 816 } 817 818 if (error) 819 ciss_printf(sc, "error resetting controller (%d)\n", error); 820 821 if (cr != NULL) 822 ciss_release_request(cr); 823 } 824 825 /************************************************************************ 826 * Allocate memory for the adapter command structures, initialise 827 * the request structures. 828 * 829 * Note that the entire set of commands are allocated in a single 830 * contiguous slab. 831 */ 832 static int 833 ciss_init_requests(struct ciss_softc *sc) 834 { 835 struct ciss_request *cr; 836 int i; 837 838 debug_called(1); 839 840 /* 841 * Calculate the number of request structures/commands we are 842 * going to provide for this adapter. 843 */ 844 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 845 846 if (bootverbose) 847 ciss_printf(sc, "using %d of %d available commands\n", 848 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 849 850 /* 851 * Create the DMA tag for commands. 852 */ 853 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 854 1, 0, /* alignment, boundary */ 855 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 856 BUS_SPACE_MAXADDR, /* highaddr */ 857 NULL, NULL, /* filter, filterarg */ 858 CISS_COMMAND_ALLOC_SIZE * 859 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 860 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 861 BUS_DMA_ALLOCNOW, /* flags */ 862 NULL, NULL, /* lockfunc, lockarg */ 863 &sc->ciss_command_dmat)) { 864 ciss_printf(sc, "can't allocate command DMA tag\n"); 865 return(ENOMEM); 866 } 867 /* 868 * Allocate memory and make it available for DMA. 869 */ 870 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 871 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 872 ciss_printf(sc, "can't allocate command memory\n"); 873 return(ENOMEM); 874 } 875 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 876 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 877 ciss_command_map_helper, sc, 0); 878 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 879 880 /* 881 * Set up the request and command structures, push requests onto 882 * the free queue. 883 */ 884 for (i = 1; i < sc->ciss_max_requests; i++) { 885 cr = &sc->ciss_request[i]; 886 cr->cr_sc = sc; 887 cr->cr_tag = i; 888 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 889 ciss_enqueue_free(cr); 890 } 891 return(0); 892 } 893 894 static void 895 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 896 { 897 struct ciss_softc *sc = (struct ciss_softc *)arg; 898 899 sc->ciss_command_phys = segs->ds_addr; 900 } 901 902 /************************************************************************ 903 * Identify the adapter, print some information about it. 904 */ 905 static int 906 ciss_identify_adapter(struct ciss_softc *sc) 907 { 908 struct ciss_request *cr; 909 int error, command_status; 910 911 debug_called(1); 912 913 cr = NULL; 914 915 /* 916 * Get a request, allocate storage for the adapter data. 917 */ 918 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 919 (void **)&sc->ciss_id, 920 sizeof(*sc->ciss_id))) != 0) 921 goto out; 922 923 /* 924 * Submit the request and wait for it to complete. 925 */ 926 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 927 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 928 goto out; 929 } 930 931 /* 932 * Check response. 933 */ 934 ciss_report_request(cr, &command_status, NULL); 935 switch(command_status) { 936 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 937 break; 938 case CISS_CMD_STATUS_DATA_UNDERRUN: 939 case CISS_CMD_STATUS_DATA_OVERRUN: 940 ciss_printf(sc, "data over/underrun reading adapter information\n"); 941 default: 942 ciss_printf(sc, "error reading adapter information (%s)\n", 943 ciss_name_command_status(command_status)); 944 error = EIO; 945 goto out; 946 } 947 948 /* sanity-check reply */ 949 if (!sc->ciss_id->big_map_supported) { 950 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 951 error = ENXIO; 952 goto out; 953 } 954 955 #if 0 956 /* XXX later revisions may not need this */ 957 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 958 #endif 959 960 /* XXX only really required for old 5300 adapters? */ 961 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 962 963 /* print information */ 964 if (bootverbose) { 965 #if 0 /* XXX proxy volumes??? */ 966 ciss_printf(sc, " %d logical drive%s configured\n", 967 sc->ciss_id->configured_logical_drives, 968 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 969 #endif 970 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 971 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 972 973 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 974 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 975 ciss_printf(sc, " supported I/O methods 0x%b\n", 976 sc->ciss_cfg->supported_methods, 977 "\20\1READY\2simple\3performant\4MEMQ\n"); 978 ciss_printf(sc, " active I/O method 0x%b\n", 979 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 980 ciss_printf(sc, " 4G page base 0x%08x\n", 981 sc->ciss_cfg->command_physlimit); 982 ciss_printf(sc, " interrupt coalesce delay %dus\n", 983 sc->ciss_cfg->interrupt_coalesce_delay); 984 ciss_printf(sc, " interrupt coalesce count %d\n", 985 sc->ciss_cfg->interrupt_coalesce_count); 986 ciss_printf(sc, " max outstanding commands %d\n", 987 sc->ciss_cfg->max_outstanding_commands); 988 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 989 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 990 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 991 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 992 } 993 994 out: 995 if (error) { 996 if (sc->ciss_id != NULL) { 997 free(sc->ciss_id, CISS_MALLOC_CLASS); 998 sc->ciss_id = NULL; 999 } 1000 } 1001 if (cr != NULL) 1002 ciss_release_request(cr); 1003 return(error); 1004 } 1005 1006 /************************************************************************ 1007 * Helper routine for generating a list of logical and physical luns. 1008 */ 1009 static struct ciss_lun_report * 1010 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1011 { 1012 struct ciss_request *cr; 1013 struct ciss_command *cc; 1014 struct ciss_report_cdb *crc; 1015 struct ciss_lun_report *cll; 1016 int command_status; 1017 int report_size; 1018 int error = 0; 1019 1020 debug_called(1); 1021 1022 cr = NULL; 1023 cll = NULL; 1024 1025 /* 1026 * Get a request, allocate storage for the address list. 1027 */ 1028 if ((error = ciss_get_request(sc, &cr)) != 0) 1029 goto out; 1030 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1031 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1032 ciss_printf(sc, "can't allocate memory for lun report\n"); 1033 error = ENOMEM; 1034 goto out; 1035 } 1036 1037 /* 1038 * Build the Report Logical/Physical LUNs command. 1039 */ 1040 cc = CISS_FIND_COMMAND(cr); 1041 cr->cr_data = cll; 1042 cr->cr_length = report_size; 1043 cr->cr_flags = CISS_REQ_DATAIN; 1044 1045 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1046 cc->header.address.physical.bus = 0; 1047 cc->header.address.physical.target = 0; 1048 cc->cdb.cdb_length = sizeof(*crc); 1049 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1050 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1051 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1052 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1053 1054 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1055 bzero(crc, sizeof(*crc)); 1056 crc->opcode = opcode; 1057 crc->length = htonl(report_size); /* big-endian field */ 1058 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1059 1060 /* 1061 * Submit the request and wait for it to complete. (timeout 1062 * here should be much greater than above) 1063 */ 1064 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1065 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1066 goto out; 1067 } 1068 1069 /* 1070 * Check response. Note that data over/underrun is OK. 1071 */ 1072 ciss_report_request(cr, &command_status, NULL); 1073 switch(command_status) { 1074 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1075 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1076 break; 1077 case CISS_CMD_STATUS_DATA_OVERRUN: 1078 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1079 CISS_MAX_LOGICAL); 1080 break; 1081 default: 1082 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1083 ciss_name_command_status(command_status)); 1084 error = EIO; 1085 goto out; 1086 } 1087 ciss_release_request(cr); 1088 cr = NULL; 1089 1090 out: 1091 if (cr != NULL) 1092 ciss_release_request(cr); 1093 if (error && cll != NULL) { 1094 free(cll, CISS_MALLOC_CLASS); 1095 cll = NULL; 1096 } 1097 return(cll); 1098 } 1099 1100 /************************************************************************ 1101 * Find logical drives on the adapter. 1102 */ 1103 static int 1104 ciss_init_logical(struct ciss_softc *sc) 1105 { 1106 struct ciss_lun_report *cll; 1107 int error = 0, i, j; 1108 int ndrives; 1109 1110 debug_called(1); 1111 1112 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1113 CISS_MAX_LOGICAL); 1114 if (cll == NULL) { 1115 error = ENXIO; 1116 goto out; 1117 } 1118 1119 /* sanity-check reply */ 1120 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1121 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1122 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1123 ndrives, CISS_MAX_LOGICAL); 1124 error = ENXIO; 1125 goto out; 1126 } 1127 1128 /* 1129 * Save logical drive information. 1130 */ 1131 if (bootverbose) { 1132 ciss_printf(sc, "%d logical drive%s\n", 1133 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1134 } 1135 1136 sc->ciss_logical = 1137 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1138 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1139 if (sc->ciss_logical == NULL) { 1140 error = ENXIO; 1141 goto out; 1142 } 1143 1144 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1145 sc->ciss_logical[i] = 1146 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1147 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1148 if (sc->ciss_logical[i] == NULL) { 1149 error = ENXIO; 1150 goto out; 1151 } 1152 1153 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1154 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1155 } 1156 1157 1158 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1159 if (i < ndrives) { 1160 struct ciss_ldrive *ld; 1161 int bus, target; 1162 1163 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1164 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1165 ld = &sc->ciss_logical[bus][target]; 1166 1167 ld->cl_address = cll->lun[i]; 1168 ld->cl_controller = &sc->ciss_controllers[bus]; 1169 if (ciss_identify_logical(sc, ld) != 0) 1170 continue; 1171 /* 1172 * If the drive has had media exchanged, we should bring it online. 1173 */ 1174 if (ld->cl_lstatus->media_exchanged) 1175 ciss_accept_media(sc, ld); 1176 1177 } 1178 } 1179 1180 out: 1181 if (cll != NULL) 1182 free(cll, CISS_MALLOC_CLASS); 1183 return(error); 1184 } 1185 1186 static int 1187 ciss_init_physical(struct ciss_softc *sc) 1188 { 1189 struct ciss_lun_report *cll; 1190 int error = 0, i; 1191 int nphys; 1192 int bus, target; 1193 1194 debug_called(1); 1195 1196 bus = 0; 1197 target = 0; 1198 1199 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1200 CISS_MAX_PHYSICAL); 1201 if (cll == NULL) { 1202 error = ENXIO; 1203 goto out; 1204 } 1205 1206 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1207 1208 if (bootverbose) { 1209 ciss_printf(sc, "%d physical device%s\n", 1210 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1211 } 1212 1213 /* 1214 * Figure out the bus mapping. 1215 * Logical buses include both the local logical bus for local arrays and 1216 * proxy buses for remote arrays. Physical buses are numbered by the 1217 * controller and represent physical buses that hold physical devices. 1218 * We shift these bus numbers so that everything fits into a single flat 1219 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1220 * numbers, and the physical bus numbers are shifted to be above that. 1221 * This results in the various driver arrays being indexed as follows: 1222 * 1223 * ciss_controllers[] - indexed by logical bus 1224 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1225 * being shifted by 32. 1226 * ciss_logical[][] - indexed by logical bus 1227 * ciss_physical[][] - indexed by physical bus 1228 * 1229 * XXX This is getting more and more hackish. CISS really doesn't play 1230 * well with a standard SCSI model; devices are addressed via magic 1231 * cookies, not via b/t/l addresses. Since there is no way to store 1232 * the cookie in the CAM device object, we have to keep these lookup 1233 * tables handy so that the devices can be found quickly at the cost 1234 * of wasting memory and having a convoluted lookup scheme. This 1235 * driver should probably be converted to block interface. 1236 */ 1237 /* 1238 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1239 * controller. A proxy controller is another physical controller 1240 * behind the primary PCI controller. We need to know about this 1241 * so that BMIC commands can be properly targeted. There can be 1242 * proxy controllers attached to a single PCI controller, so 1243 * find the highest numbered one so the array can be properly 1244 * sized. 1245 */ 1246 sc->ciss_max_logical_bus = 1; 1247 for (i = 0; i < nphys; i++) { 1248 if (cll->lun[i].physical.extra_address == 0) { 1249 bus = cll->lun[i].physical.bus; 1250 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1251 } else { 1252 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1253 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1254 } 1255 } 1256 1257 sc->ciss_controllers = 1258 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1259 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1260 1261 if (sc->ciss_controllers == NULL) { 1262 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1263 error = ENOMEM; 1264 goto out; 1265 } 1266 1267 /* setup a map of controller addresses */ 1268 for (i = 0; i < nphys; i++) { 1269 if (cll->lun[i].physical.extra_address == 0) { 1270 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1271 } 1272 } 1273 1274 sc->ciss_physical = 1275 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1276 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1277 if (sc->ciss_physical == NULL) { 1278 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1279 error = ENOMEM; 1280 goto out; 1281 } 1282 1283 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1284 sc->ciss_physical[i] = 1285 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1286 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1287 if (sc->ciss_physical[i] == NULL) { 1288 ciss_printf(sc, "Could not allocate memory for target map\n"); 1289 error = ENOMEM; 1290 goto out; 1291 } 1292 } 1293 1294 ciss_filter_physical(sc, cll); 1295 1296 out: 1297 if (cll != NULL) 1298 free(cll, CISS_MALLOC_CLASS); 1299 1300 return(error); 1301 } 1302 1303 static int 1304 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1305 { 1306 u_int32_t ea; 1307 int i, nphys; 1308 int bus, target; 1309 1310 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1311 for (i = 0; i < nphys; i++) { 1312 if (cll->lun[i].physical.extra_address == 0) 1313 continue; 1314 1315 /* 1316 * Filter out devices that we don't want. Level 3 LUNs could 1317 * probably be supported, but the docs don't give enough of a 1318 * hint to know how. 1319 * 1320 * The mode field of the physical address is likely set to have 1321 * hard disks masked out. Honor it unless the user has overridden 1322 * us with the tunable. We also munge the inquiry data for these 1323 * disks so that they only show up as passthrough devices. Keeping 1324 * them visible in this fashion is useful for doing things like 1325 * flashing firmware. 1326 */ 1327 ea = cll->lun[i].physical.extra_address; 1328 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1329 (CISS_EXTRA_MODE2(ea) == 0x3)) 1330 continue; 1331 if ((ciss_expose_hidden_physical == 0) && 1332 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1333 continue; 1334 1335 /* 1336 * Note: CISS firmware numbers physical busses starting at '1', not 1337 * '0'. This numbering is internal to the firmware and is only 1338 * used as a hint here. 1339 */ 1340 bus = CISS_EXTRA_BUS2(ea) - 1; 1341 target = CISS_EXTRA_TARGET2(ea); 1342 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1343 sc->ciss_physical[bus][target].cp_online = 1; 1344 } 1345 1346 return (0); 1347 } 1348 1349 static int 1350 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1351 { 1352 struct ciss_request *cr; 1353 struct ciss_command *cc; 1354 struct scsi_inquiry *inq; 1355 int error; 1356 int command_status; 1357 1358 cr = NULL; 1359 1360 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1361 1362 if ((error = ciss_get_request(sc, &cr)) != 0) 1363 goto out; 1364 1365 cc = CISS_FIND_COMMAND(cr); 1366 cr->cr_data = &ld->cl_geometry; 1367 cr->cr_length = sizeof(ld->cl_geometry); 1368 cr->cr_flags = CISS_REQ_DATAIN; 1369 1370 cc->header.address = ld->cl_address; 1371 cc->cdb.cdb_length = 6; 1372 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1373 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1374 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1375 cc->cdb.timeout = 30; 1376 1377 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1378 inq->opcode = INQUIRY; 1379 inq->byte2 = SI_EVPD; 1380 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1381 inq->length = sizeof(ld->cl_geometry); 1382 1383 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1384 ciss_printf(sc, "error getting geometry (%d)\n", error); 1385 goto out; 1386 } 1387 1388 ciss_report_request(cr, &command_status, NULL); 1389 switch(command_status) { 1390 case CISS_CMD_STATUS_SUCCESS: 1391 case CISS_CMD_STATUS_DATA_UNDERRUN: 1392 break; 1393 case CISS_CMD_STATUS_DATA_OVERRUN: 1394 ciss_printf(sc, "WARNING: Data overrun\n"); 1395 break; 1396 default: 1397 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1398 ciss_name_command_status(command_status)); 1399 break; 1400 } 1401 1402 out: 1403 if (cr != NULL) 1404 ciss_release_request(cr); 1405 return(error); 1406 } 1407 /************************************************************************ 1408 * Identify a logical drive, initialise state related to it. 1409 */ 1410 static int 1411 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1412 { 1413 struct ciss_request *cr; 1414 struct ciss_command *cc; 1415 struct ciss_bmic_cdb *cbc; 1416 int error, command_status; 1417 1418 debug_called(1); 1419 1420 cr = NULL; 1421 1422 /* 1423 * Build a BMIC request to fetch the drive ID. 1424 */ 1425 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1426 (void **)&ld->cl_ldrive, 1427 sizeof(*ld->cl_ldrive))) != 0) 1428 goto out; 1429 cc = CISS_FIND_COMMAND(cr); 1430 cc->header.address = *ld->cl_controller; /* target controller */ 1431 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1432 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1433 1434 /* 1435 * Submit the request and wait for it to complete. 1436 */ 1437 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1438 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1439 goto out; 1440 } 1441 1442 /* 1443 * Check response. 1444 */ 1445 ciss_report_request(cr, &command_status, NULL); 1446 switch(command_status) { 1447 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1448 break; 1449 case CISS_CMD_STATUS_DATA_UNDERRUN: 1450 case CISS_CMD_STATUS_DATA_OVERRUN: 1451 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1452 default: 1453 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1454 ciss_name_command_status(command_status)); 1455 error = EIO; 1456 goto out; 1457 } 1458 ciss_release_request(cr); 1459 cr = NULL; 1460 1461 /* 1462 * Build a CISS BMIC command to get the logical drive status. 1463 */ 1464 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1465 goto out; 1466 1467 /* 1468 * Get the logical drive geometry. 1469 */ 1470 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1471 goto out; 1472 1473 /* 1474 * Print the drive's basic characteristics. 1475 */ 1476 if (bootverbose) { 1477 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1478 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1479 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1480 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1481 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1482 ld->cl_ldrive->block_size)); 1483 1484 ciss_print_ldrive(sc, ld); 1485 } 1486 out: 1487 if (error != 0) { 1488 /* make the drive not-exist */ 1489 ld->cl_status = CISS_LD_NONEXISTENT; 1490 if (ld->cl_ldrive != NULL) { 1491 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1492 ld->cl_ldrive = NULL; 1493 } 1494 if (ld->cl_lstatus != NULL) { 1495 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1496 ld->cl_lstatus = NULL; 1497 } 1498 } 1499 if (cr != NULL) 1500 ciss_release_request(cr); 1501 1502 return(error); 1503 } 1504 1505 /************************************************************************ 1506 * Get status for a logical drive. 1507 * 1508 * XXX should we also do this in response to Test Unit Ready? 1509 */ 1510 static int 1511 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1512 { 1513 struct ciss_request *cr; 1514 struct ciss_command *cc; 1515 struct ciss_bmic_cdb *cbc; 1516 int error, command_status; 1517 1518 /* 1519 * Build a CISS BMIC command to get the logical drive status. 1520 */ 1521 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1522 (void **)&ld->cl_lstatus, 1523 sizeof(*ld->cl_lstatus))) != 0) 1524 goto out; 1525 cc = CISS_FIND_COMMAND(cr); 1526 cc->header.address = *ld->cl_controller; /* target controller */ 1527 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1528 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1529 1530 /* 1531 * Submit the request and wait for it to complete. 1532 */ 1533 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1534 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1535 goto out; 1536 } 1537 1538 /* 1539 * Check response. 1540 */ 1541 ciss_report_request(cr, &command_status, NULL); 1542 switch(command_status) { 1543 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1544 break; 1545 case CISS_CMD_STATUS_DATA_UNDERRUN: 1546 case CISS_CMD_STATUS_DATA_OVERRUN: 1547 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1548 default: 1549 ciss_printf(sc, "error reading logical drive status (%s)\n", 1550 ciss_name_command_status(command_status)); 1551 error = EIO; 1552 goto out; 1553 } 1554 1555 /* 1556 * Set the drive's summary status based on the returned status. 1557 * 1558 * XXX testing shows that a failed JBOD drive comes back at next 1559 * boot in "queued for expansion" mode. WTF? 1560 */ 1561 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1562 1563 out: 1564 if (cr != NULL) 1565 ciss_release_request(cr); 1566 return(error); 1567 } 1568 1569 /************************************************************************ 1570 * Notify the adapter of a config update. 1571 */ 1572 static int 1573 ciss_update_config(struct ciss_softc *sc) 1574 { 1575 int i; 1576 1577 debug_called(1); 1578 1579 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1580 for (i = 0; i < 1000; i++) { 1581 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1582 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1583 return(0); 1584 } 1585 DELAY(1000); 1586 } 1587 return(1); 1588 } 1589 1590 /************************************************************************ 1591 * Accept new media into a logical drive. 1592 * 1593 * XXX The drive has previously been offline; it would be good if we 1594 * could make sure it's not open right now. 1595 */ 1596 static int 1597 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1598 { 1599 struct ciss_request *cr; 1600 struct ciss_command *cc; 1601 struct ciss_bmic_cdb *cbc; 1602 int command_status; 1603 int error = 0, ldrive; 1604 1605 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1606 1607 debug(0, "bringing logical drive %d back online"); 1608 1609 /* 1610 * Build a CISS BMIC command to bring the drive back online. 1611 */ 1612 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1613 NULL, 0)) != 0) 1614 goto out; 1615 cc = CISS_FIND_COMMAND(cr); 1616 cc->header.address = *ld->cl_controller; /* target controller */ 1617 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1618 cbc->log_drive = ldrive; 1619 1620 /* 1621 * Submit the request and wait for it to complete. 1622 */ 1623 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1624 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1625 goto out; 1626 } 1627 1628 /* 1629 * Check response. 1630 */ 1631 ciss_report_request(cr, &command_status, NULL); 1632 switch(command_status) { 1633 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1634 /* we should get a logical drive status changed event here */ 1635 break; 1636 default: 1637 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1638 ciss_name_command_status(command_status)); 1639 break; 1640 } 1641 1642 out: 1643 if (cr != NULL) 1644 ciss_release_request(cr); 1645 return(error); 1646 } 1647 1648 /************************************************************************ 1649 * Release adapter resources. 1650 */ 1651 static void 1652 ciss_free(struct ciss_softc *sc) 1653 { 1654 struct ciss_request *cr; 1655 int i; 1656 1657 debug_called(1); 1658 1659 /* we're going away */ 1660 sc->ciss_flags |= CISS_FLAG_ABORTING; 1661 1662 /* terminate the periodic heartbeat routine */ 1663 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1664 1665 /* cancel the Event Notify chain */ 1666 ciss_notify_abort(sc); 1667 1668 ciss_kill_notify_thread(sc); 1669 1670 /* remove the control device */ 1671 if (sc->ciss_dev_t != NULL) 1672 destroy_dev(sc->ciss_dev_t); 1673 1674 /* free the controller data */ 1675 if (sc->ciss_id != NULL) 1676 free(sc->ciss_id, CISS_MALLOC_CLASS); 1677 1678 /* release I/O resources */ 1679 if (sc->ciss_regs_resource != NULL) 1680 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1681 sc->ciss_regs_rid, sc->ciss_regs_resource); 1682 if (sc->ciss_cfg_resource != NULL) 1683 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1684 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1685 if (sc->ciss_intr != NULL) 1686 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1687 if (sc->ciss_irq_resource != NULL) 1688 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1689 sc->ciss_irq_rid, sc->ciss_irq_resource); 1690 1691 /* destroy DMA tags */ 1692 if (sc->ciss_parent_dmat) 1693 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1694 1695 while ((cr = ciss_dequeue_free(sc)) != NULL) 1696 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1697 if (sc->ciss_buffer_dmat) 1698 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1699 1700 /* destroy command memory and DMA tag */ 1701 if (sc->ciss_command != NULL) { 1702 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1703 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1704 } 1705 if (sc->ciss_command_dmat) 1706 bus_dma_tag_destroy(sc->ciss_command_dmat); 1707 1708 /* disconnect from CAM */ 1709 if (sc->ciss_cam_sim) { 1710 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1711 if (sc->ciss_cam_sim[i]) { 1712 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1713 cam_sim_free(sc->ciss_cam_sim[i], 0); 1714 } 1715 } 1716 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1717 CISS_PHYSICAL_BASE; i++) { 1718 if (sc->ciss_cam_sim[i]) { 1719 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1720 cam_sim_free(sc->ciss_cam_sim[i], 0); 1721 } 1722 } 1723 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1724 } 1725 if (sc->ciss_cam_devq) 1726 cam_simq_free(sc->ciss_cam_devq); 1727 1728 if (sc->ciss_logical) { 1729 for (i = 0; i < sc->ciss_max_logical_bus; i++) 1730 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1731 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1732 } 1733 1734 if (sc->ciss_physical) { 1735 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1736 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1737 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1738 } 1739 1740 if (sc->ciss_controllers) 1741 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1742 } 1743 1744 /************************************************************************ 1745 * Give a command to the adapter. 1746 * 1747 * Note that this uses the simple transport layer directly. If we 1748 * want to add support for other layers, we'll need a switch of some 1749 * sort. 1750 * 1751 * Note that the simple transport layer has no way of refusing a 1752 * command; we only have as many request structures as the adapter 1753 * supports commands, so we don't have to check (this presumes that 1754 * the adapter can handle commands as fast as we throw them at it). 1755 */ 1756 static int 1757 ciss_start(struct ciss_request *cr) 1758 { 1759 struct ciss_command *cc; /* XXX debugging only */ 1760 int error; 1761 1762 cc = CISS_FIND_COMMAND(cr); 1763 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1764 1765 /* 1766 * Map the request's data. 1767 */ 1768 if ((error = ciss_map_request(cr))) 1769 return(error); 1770 1771 #if 0 1772 ciss_print_request(cr); 1773 #endif 1774 1775 return(0); 1776 } 1777 1778 /************************************************************************ 1779 * Fetch completed request(s) from the adapter, queue them for 1780 * completion handling. 1781 * 1782 * Note that this uses the simple transport layer directly. If we 1783 * want to add support for other layers, we'll need a switch of some 1784 * sort. 1785 * 1786 * Note that the simple transport mechanism does not require any 1787 * reentrancy protection; the OPQ read is atomic. If there is a 1788 * chance of a race with something else that might move the request 1789 * off the busy list, then we will have to lock against that 1790 * (eg. timeouts, etc.) 1791 */ 1792 static void 1793 ciss_done(struct ciss_softc *sc) 1794 { 1795 struct ciss_request *cr; 1796 struct ciss_command *cc; 1797 u_int32_t tag, index; 1798 int complete; 1799 1800 debug_called(3); 1801 1802 /* 1803 * Loop quickly taking requests from the adapter and moving them 1804 * from the busy queue to the completed queue. 1805 */ 1806 complete = 0; 1807 for (;;) { 1808 1809 /* see if the OPQ contains anything */ 1810 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1811 break; 1812 1813 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1814 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1815 break; 1816 index = tag >> 2; 1817 debug(2, "completed command %d%s", index, 1818 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1819 if (index >= sc->ciss_max_requests) { 1820 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1821 continue; 1822 } 1823 cr = &(sc->ciss_request[index]); 1824 cc = CISS_FIND_COMMAND(cr); 1825 cc->header.host_tag = tag; /* not updated by adapter */ 1826 if (ciss_remove_busy(cr)) { 1827 /* assume this is garbage out of the adapter */ 1828 ciss_printf(sc, "completed nonbusy request %d\n", index); 1829 } else { 1830 ciss_enqueue_complete(cr); 1831 } 1832 complete = 1; 1833 } 1834 1835 /* 1836 * Invoke completion processing. If we can defer this out of 1837 * interrupt context, that'd be good. 1838 */ 1839 if (complete) 1840 ciss_complete(sc); 1841 } 1842 1843 /************************************************************************ 1844 * Take an interrupt from the adapter. 1845 */ 1846 static void 1847 ciss_intr(void *arg) 1848 { 1849 struct ciss_softc *sc = (struct ciss_softc *)arg; 1850 1851 /* 1852 * The only interrupt we recognise indicates that there are 1853 * entries in the outbound post queue. 1854 */ 1855 ciss_done(sc); 1856 } 1857 1858 /************************************************************************ 1859 * Process completed requests. 1860 * 1861 * Requests can be completed in three fashions: 1862 * 1863 * - by invoking a callback function (cr_complete is non-null) 1864 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1865 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1866 */ 1867 static void 1868 ciss_complete(struct ciss_softc *sc) 1869 { 1870 struct ciss_request *cr; 1871 1872 debug_called(2); 1873 1874 /* 1875 * Loop taking requests off the completed queue and performing 1876 * completion processing on them. 1877 */ 1878 for (;;) { 1879 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1880 break; 1881 ciss_unmap_request(cr); 1882 1883 /* 1884 * If the request has a callback, invoke it. 1885 */ 1886 if (cr->cr_complete != NULL) { 1887 cr->cr_complete(cr); 1888 continue; 1889 } 1890 1891 /* 1892 * If someone is sleeping on this request, wake them up. 1893 */ 1894 if (cr->cr_flags & CISS_REQ_SLEEP) { 1895 cr->cr_flags &= ~CISS_REQ_SLEEP; 1896 wakeup(cr); 1897 continue; 1898 } 1899 1900 /* 1901 * If someone is polling this request for completion, signal. 1902 */ 1903 if (cr->cr_flags & CISS_REQ_POLL) { 1904 cr->cr_flags &= ~CISS_REQ_POLL; 1905 continue; 1906 } 1907 1908 /* 1909 * Give up and throw the request back on the free queue. This 1910 * should never happen; resources will probably be lost. 1911 */ 1912 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1913 ciss_enqueue_free(cr); 1914 } 1915 } 1916 1917 /************************************************************************ 1918 * Report on the completion status of a request, and pass back SCSI 1919 * and command status values. 1920 */ 1921 static int 1922 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1923 { 1924 struct ciss_command *cc; 1925 struct ciss_error_info *ce; 1926 1927 debug_called(2); 1928 1929 cc = CISS_FIND_COMMAND(cr); 1930 ce = (struct ciss_error_info *)&(cc->sg[0]); 1931 1932 /* 1933 * We don't consider data under/overrun an error for the Report 1934 * Logical/Physical LUNs commands. 1935 */ 1936 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1937 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1938 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) { 1939 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1940 debug(2, "ignoring irrelevant under/overrun error"); 1941 } 1942 1943 /* 1944 * Check the command's error bit, if clear, there's no status and 1945 * everything is OK. 1946 */ 1947 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1948 if (scsi_status != NULL) 1949 *scsi_status = SCSI_STATUS_OK; 1950 if (command_status != NULL) 1951 *command_status = CISS_CMD_STATUS_SUCCESS; 1952 return(0); 1953 } else { 1954 if (command_status != NULL) 1955 *command_status = ce->command_status; 1956 if (scsi_status != NULL) { 1957 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1958 *scsi_status = ce->scsi_status; 1959 } else { 1960 *scsi_status = -1; 1961 } 1962 } 1963 if (bootverbose) 1964 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1965 ce->command_status, ciss_name_command_status(ce->command_status), 1966 ce->scsi_status); 1967 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1968 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1969 ce->additional_error_info.invalid_command.offense_size, 1970 ce->additional_error_info.invalid_command.offense_offset, 1971 ce->additional_error_info.invalid_command.offense_value); 1972 } 1973 } 1974 #if 0 1975 ciss_print_request(cr); 1976 #endif 1977 return(1); 1978 } 1979 1980 /************************************************************************ 1981 * Issue a request and don't return until it's completed. 1982 * 1983 * Depending on adapter status, we may poll or sleep waiting for 1984 * completion. 1985 */ 1986 static int 1987 ciss_synch_request(struct ciss_request *cr, int timeout) 1988 { 1989 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1990 return(ciss_wait_request(cr, timeout)); 1991 } else { 1992 return(ciss_poll_request(cr, timeout)); 1993 } 1994 } 1995 1996 /************************************************************************ 1997 * Issue a request and poll for completion. 1998 * 1999 * Timeout in milliseconds. 2000 */ 2001 static int 2002 ciss_poll_request(struct ciss_request *cr, int timeout) 2003 { 2004 int error; 2005 2006 debug_called(2); 2007 2008 cr->cr_flags |= CISS_REQ_POLL; 2009 if ((error = ciss_start(cr)) != 0) 2010 return(error); 2011 2012 do { 2013 ciss_done(cr->cr_sc); 2014 if (!(cr->cr_flags & CISS_REQ_POLL)) 2015 return(0); 2016 DELAY(1000); 2017 } while (timeout-- >= 0); 2018 return(EWOULDBLOCK); 2019 } 2020 2021 /************************************************************************ 2022 * Issue a request and sleep waiting for completion. 2023 * 2024 * Timeout in milliseconds. Note that a spurious wakeup will reset 2025 * the timeout. 2026 */ 2027 static int 2028 ciss_wait_request(struct ciss_request *cr, int timeout) 2029 { 2030 int s, error; 2031 2032 debug_called(2); 2033 2034 cr->cr_flags |= CISS_REQ_SLEEP; 2035 if ((error = ciss_start(cr)) != 0) 2036 return(error); 2037 2038 s = splcam(); 2039 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2040 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2041 } 2042 splx(s); 2043 return(error); 2044 } 2045 2046 #if 0 2047 /************************************************************************ 2048 * Abort a request. Note that a potential exists here to race the 2049 * request being completed; the caller must deal with this. 2050 */ 2051 static int 2052 ciss_abort_request(struct ciss_request *ar) 2053 { 2054 struct ciss_request *cr; 2055 struct ciss_command *cc; 2056 struct ciss_message_cdb *cmc; 2057 int error; 2058 2059 debug_called(1); 2060 2061 /* get a request */ 2062 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2063 return(error); 2064 2065 /* build the abort command */ 2066 cc = CISS_FIND_COMMAND(cr); 2067 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2068 cc->header.address.physical.target = 0; 2069 cc->header.address.physical.bus = 0; 2070 cc->cdb.cdb_length = sizeof(*cmc); 2071 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2072 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2073 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2074 cc->cdb.timeout = 30; 2075 2076 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2077 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2078 cmc->type = CISS_MESSAGE_ABORT_TASK; 2079 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2080 2081 /* 2082 * Send the request and wait for a response. If we believe we 2083 * aborted the request OK, clear the flag that indicates it's 2084 * running. 2085 */ 2086 error = ciss_synch_request(cr, 35 * 1000); 2087 if (!error) 2088 error = ciss_report_request(cr, NULL, NULL); 2089 ciss_release_request(cr); 2090 2091 return(error); 2092 } 2093 #endif 2094 2095 2096 /************************************************************************ 2097 * Fetch and initialise a request 2098 */ 2099 static int 2100 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2101 { 2102 struct ciss_request *cr; 2103 2104 debug_called(2); 2105 2106 /* 2107 * Get a request and clean it up. 2108 */ 2109 if ((cr = ciss_dequeue_free(sc)) == NULL) 2110 return(ENOMEM); 2111 2112 cr->cr_data = NULL; 2113 cr->cr_flags = 0; 2114 cr->cr_complete = NULL; 2115 cr->cr_private = NULL; 2116 2117 ciss_preen_command(cr); 2118 *crp = cr; 2119 return(0); 2120 } 2121 2122 static void 2123 ciss_preen_command(struct ciss_request *cr) 2124 { 2125 struct ciss_command *cc; 2126 u_int32_t cmdphys; 2127 2128 /* 2129 * Clean up the command structure. 2130 * 2131 * Note that we set up the error_info structure here, since the 2132 * length can be overwritten by any command. 2133 */ 2134 cc = CISS_FIND_COMMAND(cr); 2135 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2136 cc->header.sg_total = 0; 2137 cc->header.host_tag = cr->cr_tag << 2; 2138 cc->header.host_tag_zeroes = 0; 2139 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2140 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2141 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2142 } 2143 2144 /************************************************************************ 2145 * Release a request to the free list. 2146 */ 2147 static void 2148 ciss_release_request(struct ciss_request *cr) 2149 { 2150 struct ciss_softc *sc; 2151 2152 debug_called(2); 2153 2154 sc = cr->cr_sc; 2155 2156 /* release the request to the free queue */ 2157 ciss_requeue_free(cr); 2158 } 2159 2160 /************************************************************************ 2161 * Allocate a request that will be used to send a BMIC command. Do some 2162 * of the common setup here to avoid duplicating it everywhere else. 2163 */ 2164 static int 2165 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2166 int opcode, void **bufp, size_t bufsize) 2167 { 2168 struct ciss_request *cr; 2169 struct ciss_command *cc; 2170 struct ciss_bmic_cdb *cbc; 2171 void *buf; 2172 int error; 2173 int dataout; 2174 2175 debug_called(2); 2176 2177 cr = NULL; 2178 buf = NULL; 2179 2180 /* 2181 * Get a request. 2182 */ 2183 if ((error = ciss_get_request(sc, &cr)) != 0) 2184 goto out; 2185 2186 /* 2187 * Allocate data storage if requested, determine the data direction. 2188 */ 2189 dataout = 0; 2190 if ((bufsize > 0) && (bufp != NULL)) { 2191 if (*bufp == NULL) { 2192 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2193 error = ENOMEM; 2194 goto out; 2195 } 2196 } else { 2197 buf = *bufp; 2198 dataout = 1; /* we are given a buffer, so we are writing */ 2199 } 2200 } 2201 2202 /* 2203 * Build a CISS BMIC command to get the logical drive ID. 2204 */ 2205 cr->cr_data = buf; 2206 cr->cr_length = bufsize; 2207 if (!dataout) 2208 cr->cr_flags = CISS_REQ_DATAIN; 2209 2210 cc = CISS_FIND_COMMAND(cr); 2211 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2212 cc->header.address.physical.bus = 0; 2213 cc->header.address.physical.target = 0; 2214 cc->cdb.cdb_length = sizeof(*cbc); 2215 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2216 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2217 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2218 cc->cdb.timeout = 0; 2219 2220 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2221 bzero(cbc, sizeof(*cbc)); 2222 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2223 cbc->bmic_opcode = opcode; 2224 cbc->size = htons((u_int16_t)bufsize); 2225 2226 out: 2227 if (error) { 2228 if (cr != NULL) 2229 ciss_release_request(cr); 2230 } else { 2231 *crp = cr; 2232 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2233 *bufp = buf; 2234 } 2235 return(error); 2236 } 2237 2238 /************************************************************************ 2239 * Handle a command passed in from userspace. 2240 */ 2241 static int 2242 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2243 { 2244 struct ciss_request *cr; 2245 struct ciss_command *cc; 2246 struct ciss_error_info *ce; 2247 int error = 0; 2248 2249 debug_called(1); 2250 2251 cr = NULL; 2252 2253 /* 2254 * Get a request. 2255 */ 2256 if ((error = ciss_get_request(sc, &cr)) != 0) 2257 goto out; 2258 cc = CISS_FIND_COMMAND(cr); 2259 2260 /* 2261 * Allocate an in-kernel databuffer if required, copy in user data. 2262 */ 2263 cr->cr_length = ioc->buf_size; 2264 if (ioc->buf_size > 0) { 2265 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2266 error = ENOMEM; 2267 goto out; 2268 } 2269 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2270 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2271 goto out; 2272 } 2273 } 2274 2275 /* 2276 * Build the request based on the user command. 2277 */ 2278 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2279 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2280 2281 /* XXX anything else to populate here? */ 2282 2283 /* 2284 * Run the command. 2285 */ 2286 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2287 debug(0, "request failed - %d", error); 2288 goto out; 2289 } 2290 2291 /* 2292 * Check to see if the command succeeded. 2293 */ 2294 ce = (struct ciss_error_info *)&(cc->sg[0]); 2295 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2296 bzero(ce, sizeof(*ce)); 2297 2298 /* 2299 * Copy the results back to the user. 2300 */ 2301 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2302 if ((ioc->buf_size > 0) && 2303 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2304 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2305 goto out; 2306 } 2307 2308 /* done OK */ 2309 error = 0; 2310 2311 out: 2312 if ((cr != NULL) && (cr->cr_data != NULL)) 2313 free(cr->cr_data, CISS_MALLOC_CLASS); 2314 if (cr != NULL) 2315 ciss_release_request(cr); 2316 return(error); 2317 } 2318 2319 /************************************************************************ 2320 * Map a request into bus-visible space, initialise the scatter/gather 2321 * list. 2322 */ 2323 static int 2324 ciss_map_request(struct ciss_request *cr) 2325 { 2326 struct ciss_softc *sc; 2327 int error = 0; 2328 2329 debug_called(2); 2330 2331 sc = cr->cr_sc; 2332 2333 /* check that mapping is necessary */ 2334 if (cr->cr_flags & CISS_REQ_MAPPED) 2335 return(0); 2336 2337 cr->cr_flags |= CISS_REQ_MAPPED; 2338 2339 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2340 BUS_DMASYNC_PREWRITE); 2341 2342 if (cr->cr_data != NULL) { 2343 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2344 cr->cr_data, cr->cr_length, 2345 ciss_request_map_helper, cr, 0); 2346 if (error != 0) 2347 return (error); 2348 } else { 2349 /* 2350 * Post the command to the adapter. 2351 */ 2352 ciss_enqueue_busy(cr); 2353 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2354 } 2355 2356 return(0); 2357 } 2358 2359 static void 2360 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2361 { 2362 struct ciss_command *cc; 2363 struct ciss_request *cr; 2364 struct ciss_softc *sc; 2365 int i; 2366 2367 debug_called(2); 2368 2369 cr = (struct ciss_request *)arg; 2370 sc = cr->cr_sc; 2371 cc = CISS_FIND_COMMAND(cr); 2372 2373 for (i = 0; i < nseg; i++) { 2374 cc->sg[i].address = segs[i].ds_addr; 2375 cc->sg[i].length = segs[i].ds_len; 2376 cc->sg[i].extension = 0; 2377 } 2378 /* we leave the s/g table entirely within the command */ 2379 cc->header.sg_in_list = nseg; 2380 cc->header.sg_total = nseg; 2381 2382 if (cr->cr_flags & CISS_REQ_DATAIN) 2383 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2384 if (cr->cr_flags & CISS_REQ_DATAOUT) 2385 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2386 2387 /* 2388 * Post the command to the adapter. 2389 */ 2390 ciss_enqueue_busy(cr); 2391 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2392 } 2393 2394 /************************************************************************ 2395 * Unmap a request from bus-visible space. 2396 */ 2397 static void 2398 ciss_unmap_request(struct ciss_request *cr) 2399 { 2400 struct ciss_softc *sc; 2401 2402 debug_called(2); 2403 2404 sc = cr->cr_sc; 2405 2406 /* check that unmapping is necessary */ 2407 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2408 return; 2409 2410 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2411 BUS_DMASYNC_POSTWRITE); 2412 2413 if (cr->cr_data == NULL) 2414 goto out; 2415 2416 if (cr->cr_flags & CISS_REQ_DATAIN) 2417 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2418 if (cr->cr_flags & CISS_REQ_DATAOUT) 2419 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2420 2421 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2422 out: 2423 cr->cr_flags &= ~CISS_REQ_MAPPED; 2424 } 2425 2426 /************************************************************************ 2427 * Attach the driver to CAM. 2428 * 2429 * We put all the logical drives on a single SCSI bus. 2430 */ 2431 static int 2432 ciss_cam_init(struct ciss_softc *sc) 2433 { 2434 int i, maxbus; 2435 2436 debug_called(1); 2437 2438 /* 2439 * Allocate a devq. We can reuse this for the masked physical 2440 * devices if we decide to export these as well. 2441 */ 2442 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2443 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2444 return(ENOMEM); 2445 } 2446 2447 /* 2448 * Create a SIM. 2449 * 2450 * This naturally wastes a bit of memory. The alternative is to allocate 2451 * and register each bus as it is found, and then track them on a linked 2452 * list. Unfortunately, the driver has a few places where it needs to 2453 * look up the SIM based solely on bus number, and it's unclear whether 2454 * a list traversal would work for these situations. 2455 */ 2456 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2457 CISS_PHYSICAL_BASE); 2458 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2459 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2460 if (sc->ciss_cam_sim == NULL) { 2461 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2462 return(ENOMEM); 2463 } 2464 2465 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2466 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2467 "ciss", sc, 2468 device_get_unit(sc->ciss_dev), 2469 sc->ciss_max_requests - 2, 2470 1, 2471 sc->ciss_cam_devq)) == NULL) { 2472 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2473 return(ENOMEM); 2474 } 2475 2476 /* 2477 * Register bus with this SIM. 2478 */ 2479 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2480 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2481 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2482 return (ENXIO); 2483 } 2484 } 2485 } 2486 2487 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2488 CISS_PHYSICAL_BASE; i++) { 2489 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2490 "ciss", sc, 2491 device_get_unit(sc->ciss_dev), 2492 sc->ciss_max_requests - 2, 2493 1, 2494 sc->ciss_cam_devq)) == NULL) { 2495 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2496 return (ENOMEM); 2497 } 2498 2499 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2500 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2501 return (ENXIO); 2502 } 2503 } 2504 2505 /* 2506 * Initiate a rescan of the bus. 2507 */ 2508 ciss_cam_rescan_all(sc); 2509 2510 return(0); 2511 } 2512 2513 /************************************************************************ 2514 * Initiate a rescan of the 'logical devices' SIM 2515 */ 2516 static void 2517 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2518 { 2519 struct cam_path *path; 2520 union ccb *ccb; 2521 2522 debug_called(1); 2523 2524 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2525 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2526 return; 2527 } 2528 2529 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2530 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2531 ciss_printf(sc, "rescan failed (can't create path)\n"); 2532 free(ccb, M_TEMP); 2533 return; 2534 } 2535 2536 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2537 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2538 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2539 ccb->crcn.flags = CAM_FLAG_NONE; 2540 xpt_action(ccb); 2541 2542 /* scan is now in progress */ 2543 } 2544 2545 static void 2546 ciss_cam_rescan_all(struct ciss_softc *sc) 2547 { 2548 int i; 2549 2550 /* Rescan the logical buses */ 2551 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2552 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2553 /* Rescan the physical buses */ 2554 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2555 CISS_PHYSICAL_BASE; i++) 2556 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2557 } 2558 2559 static void 2560 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2561 { 2562 xpt_free_path(ccb->ccb_h.path); 2563 free(ccb, M_TEMP); 2564 } 2565 2566 /************************************************************************ 2567 * Handle requests coming from CAM 2568 */ 2569 static void 2570 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2571 { 2572 struct ciss_softc *sc; 2573 struct ccb_scsiio *csio; 2574 int bus, target; 2575 int physical; 2576 2577 sc = cam_sim_softc(sim); 2578 bus = cam_sim_bus(sim); 2579 csio = (struct ccb_scsiio *)&ccb->csio; 2580 target = csio->ccb_h.target_id; 2581 physical = CISS_IS_PHYSICAL(bus); 2582 2583 switch (ccb->ccb_h.func_code) { 2584 2585 /* perform SCSI I/O */ 2586 case XPT_SCSI_IO: 2587 if (!ciss_cam_action_io(sim, csio)) 2588 return; 2589 break; 2590 2591 /* perform geometry calculations */ 2592 case XPT_CALC_GEOMETRY: 2593 { 2594 struct ccb_calc_geometry *ccg = &ccb->ccg; 2595 struct ciss_ldrive *ld; 2596 2597 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2598 2599 ld = NULL; 2600 if (!physical) 2601 ld = &sc->ciss_logical[bus][target]; 2602 2603 /* 2604 * Use the cached geometry settings unless the fault tolerance 2605 * is invalid. 2606 */ 2607 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2608 u_int32_t secs_per_cylinder; 2609 2610 ccg->heads = 255; 2611 ccg->secs_per_track = 32; 2612 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2613 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2614 } else { 2615 ccg->heads = ld->cl_geometry.heads; 2616 ccg->secs_per_track = ld->cl_geometry.sectors; 2617 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2618 } 2619 ccb->ccb_h.status = CAM_REQ_CMP; 2620 break; 2621 } 2622 2623 /* handle path attribute inquiry */ 2624 case XPT_PATH_INQ: 2625 { 2626 struct ccb_pathinq *cpi = &ccb->cpi; 2627 2628 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2629 2630 cpi->version_num = 1; 2631 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2632 cpi->target_sprt = 0; 2633 cpi->hba_misc = 0; 2634 cpi->max_target = CISS_MAX_LOGICAL; 2635 cpi->max_lun = 0; /* 'logical drive' channel only */ 2636 cpi->initiator_id = CISS_MAX_LOGICAL; 2637 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2638 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2639 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2640 cpi->unit_number = cam_sim_unit(sim); 2641 cpi->bus_id = cam_sim_bus(sim); 2642 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2643 ccb->ccb_h.status = CAM_REQ_CMP; 2644 break; 2645 } 2646 2647 case XPT_GET_TRAN_SETTINGS: 2648 { 2649 struct ccb_trans_settings *cts = &ccb->cts; 2650 int bus, target; 2651 2652 bus = cam_sim_bus(sim); 2653 target = cts->ccb_h.target_id; 2654 2655 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2656 cts->valid = 0; 2657 2658 /* disconnect always OK */ 2659 cts->flags |= CCB_TRANS_DISC_ENB; 2660 cts->valid |= CCB_TRANS_DISC_VALID; 2661 2662 cts->ccb_h.status = CAM_REQ_CMP; 2663 break; 2664 } 2665 2666 default: /* we can't do this */ 2667 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2668 ccb->ccb_h.status = CAM_REQ_INVALID; 2669 break; 2670 } 2671 2672 xpt_done(ccb); 2673 } 2674 2675 /************************************************************************ 2676 * Handle a CAM SCSI I/O request. 2677 */ 2678 static int 2679 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2680 { 2681 struct ciss_softc *sc; 2682 int bus, target; 2683 struct ciss_request *cr; 2684 struct ciss_command *cc; 2685 int error; 2686 2687 sc = cam_sim_softc(sim); 2688 bus = cam_sim_bus(sim); 2689 target = csio->ccb_h.target_id; 2690 2691 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2692 2693 /* firmware does not support commands > 10 bytes */ 2694 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2695 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2696 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2697 } 2698 2699 /* check that the CDB pointer is not to a physical address */ 2700 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2701 debug(3, " CDB pointer is to physical address"); 2702 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2703 } 2704 2705 /* if there is data transfer, it must be to/from a virtual address */ 2706 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2707 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2708 debug(3, " data pointer is to physical address"); 2709 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2710 } 2711 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2712 debug(3, " data has premature s/g setup"); 2713 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2714 } 2715 } 2716 2717 /* abandon aborted ccbs or those that have failed validation */ 2718 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2719 debug(3, "abandoning CCB due to abort/validation failure"); 2720 return(EINVAL); 2721 } 2722 2723 /* handle emulation of some SCSI commands ourself */ 2724 if (ciss_cam_emulate(sc, csio)) 2725 return(0); 2726 2727 /* 2728 * Get a request to manage this command. If we can't, return the 2729 * ccb, freeze the queue and flag so that we unfreeze it when a 2730 * request completes. 2731 */ 2732 if ((error = ciss_get_request(sc, &cr)) != 0) { 2733 xpt_freeze_simq(sim, 1); 2734 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2735 return(error); 2736 } 2737 2738 /* 2739 * Build the command. 2740 */ 2741 cc = CISS_FIND_COMMAND(cr); 2742 cr->cr_data = csio->data_ptr; 2743 cr->cr_length = csio->dxfer_len; 2744 cr->cr_complete = ciss_cam_complete; 2745 cr->cr_private = csio; 2746 2747 /* 2748 * Target the right logical volume. 2749 */ 2750 if (CISS_IS_PHYSICAL(bus)) 2751 cc->header.address = 2752 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2753 else 2754 cc->header.address = 2755 sc->ciss_logical[bus][target].cl_address; 2756 cc->cdb.cdb_length = csio->cdb_len; 2757 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2758 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2759 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2760 cr->cr_flags = CISS_REQ_DATAOUT; 2761 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2762 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2763 cr->cr_flags = CISS_REQ_DATAIN; 2764 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2765 } else { 2766 cr->cr_flags = 0; 2767 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2768 } 2769 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2770 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2771 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2772 } else { 2773 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2774 } 2775 2776 /* 2777 * Submit the request to the adapter. 2778 * 2779 * Note that this may fail if we're unable to map the request (and 2780 * if we ever learn a transport layer other than simple, may fail 2781 * if the adapter rejects the command). 2782 */ 2783 if ((error = ciss_start(cr)) != 0) { 2784 xpt_freeze_simq(sim, 1); 2785 if (error == EINPROGRESS) { 2786 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2787 error = 0; 2788 } else { 2789 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2790 ciss_release_request(cr); 2791 } 2792 return(error); 2793 } 2794 2795 return(0); 2796 } 2797 2798 /************************************************************************ 2799 * Emulate SCSI commands the adapter doesn't handle as we might like. 2800 */ 2801 static int 2802 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2803 { 2804 int bus, target; 2805 u_int8_t opcode; 2806 2807 target = csio->ccb_h.target_id; 2808 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2809 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2810 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2811 2812 if (CISS_IS_PHYSICAL(bus)) { 2813 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2814 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2815 xpt_done((union ccb *)csio); 2816 return(1); 2817 } else 2818 return(0); 2819 } 2820 2821 /* 2822 * Handle requests for volumes that don't exist or are not online. 2823 * A selection timeout is slightly better than an illegal request. 2824 * Other errors might be better. 2825 */ 2826 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2827 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2828 xpt_done((union ccb *)csio); 2829 return(1); 2830 } 2831 2832 /* if we have to fake Synchronise Cache */ 2833 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2834 /* 2835 * If this is a Synchronise Cache command, typically issued when 2836 * a device is closed, flush the adapter and complete now. 2837 */ 2838 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2839 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2840 ciss_flush_adapter(sc); 2841 csio->ccb_h.status = CAM_REQ_CMP; 2842 xpt_done((union ccb *)csio); 2843 return(1); 2844 } 2845 } 2846 2847 return(0); 2848 } 2849 2850 /************************************************************************ 2851 * Check for possibly-completed commands. 2852 */ 2853 static void 2854 ciss_cam_poll(struct cam_sim *sim) 2855 { 2856 struct ciss_softc *sc = cam_sim_softc(sim); 2857 2858 debug_called(2); 2859 2860 ciss_done(sc); 2861 } 2862 2863 /************************************************************************ 2864 * Handle completion of a command - pass results back through the CCB 2865 */ 2866 static void 2867 ciss_cam_complete(struct ciss_request *cr) 2868 { 2869 struct ciss_softc *sc; 2870 struct ciss_command *cc; 2871 struct ciss_error_info *ce; 2872 struct ccb_scsiio *csio; 2873 int scsi_status; 2874 int command_status; 2875 2876 debug_called(2); 2877 2878 sc = cr->cr_sc; 2879 cc = CISS_FIND_COMMAND(cr); 2880 ce = (struct ciss_error_info *)&(cc->sg[0]); 2881 csio = (struct ccb_scsiio *)cr->cr_private; 2882 2883 /* 2884 * Extract status values from request. 2885 */ 2886 ciss_report_request(cr, &command_status, &scsi_status); 2887 csio->scsi_status = scsi_status; 2888 2889 /* 2890 * Handle specific SCSI status values. 2891 */ 2892 switch(scsi_status) { 2893 /* no status due to adapter error */ 2894 case -1: 2895 debug(0, "adapter error"); 2896 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2897 break; 2898 2899 /* no status due to command completed OK */ 2900 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2901 debug(2, "SCSI_STATUS_OK"); 2902 csio->ccb_h.status = CAM_REQ_CMP; 2903 break; 2904 2905 /* check condition, sense data included */ 2906 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2907 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2908 ce->sense_length, ce->residual_count); 2909 bzero(&csio->sense_data, SSD_FULL_SIZE); 2910 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2911 csio->sense_len = ce->sense_length; 2912 csio->resid = ce->residual_count; 2913 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2914 #ifdef CISS_DEBUG 2915 { 2916 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2917 debug(0, "sense key %x", sns->flags & SSD_KEY); 2918 } 2919 #endif 2920 break; 2921 2922 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2923 debug(0, "SCSI_STATUS_BUSY"); 2924 csio->ccb_h.status = CAM_SCSI_BUSY; 2925 break; 2926 2927 default: 2928 debug(0, "unknown status 0x%x", csio->scsi_status); 2929 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2930 break; 2931 } 2932 2933 /* handle post-command fixup */ 2934 ciss_cam_complete_fixup(sc, csio); 2935 2936 /* tell CAM we're ready for more commands */ 2937 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2938 2939 xpt_done((union ccb *)csio); 2940 ciss_release_request(cr); 2941 } 2942 2943 /******************************************************************************** 2944 * Fix up the result of some commands here. 2945 */ 2946 static void 2947 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2948 { 2949 struct scsi_inquiry_data *inq; 2950 struct ciss_ldrive *cl; 2951 int bus, target; 2952 2953 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2954 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2955 2956 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2957 target = csio->ccb_h.target_id; 2958 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2959 2960 /* 2961 * Don't let hard drives be seen by the DA driver. They will still be 2962 * attached by the PASS driver. 2963 */ 2964 if (CISS_IS_PHYSICAL(bus)) { 2965 if (SID_TYPE(inq) == T_DIRECT) 2966 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2967 return; 2968 } 2969 2970 cl = &sc->ciss_logical[bus][target]; 2971 2972 padstr(inq->vendor, "COMPAQ", 8); 2973 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2974 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2975 } 2976 } 2977 2978 2979 /******************************************************************************** 2980 * Find a peripheral attached at (target) 2981 */ 2982 static struct cam_periph * 2983 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2984 { 2985 struct cam_periph *periph; 2986 struct cam_path *path; 2987 int status; 2988 2989 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2990 target, 0); 2991 if (status == CAM_REQ_CMP) { 2992 periph = cam_periph_find(path, NULL); 2993 xpt_free_path(path); 2994 } else { 2995 periph = NULL; 2996 } 2997 return(periph); 2998 } 2999 3000 /******************************************************************************** 3001 * Name the device at (target) 3002 * 3003 * XXX is this strictly correct? 3004 */ 3005 static int 3006 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3007 { 3008 struct cam_periph *periph; 3009 3010 if (CISS_IS_PHYSICAL(bus)) 3011 return (0); 3012 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3013 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3014 periph->periph_name, periph->unit_number); 3015 return(0); 3016 } 3017 sc->ciss_logical[bus][target].cl_name[0] = 0; 3018 return(ENOENT); 3019 } 3020 3021 /************************************************************************ 3022 * Periodic status monitoring. 3023 */ 3024 static void 3025 ciss_periodic(void *arg) 3026 { 3027 struct ciss_softc *sc; 3028 3029 debug_called(1); 3030 3031 sc = (struct ciss_softc *)arg; 3032 3033 /* 3034 * Check the adapter heartbeat. 3035 */ 3036 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3037 sc->ciss_heart_attack++; 3038 debug(0, "adapter heart attack in progress 0x%x/%d", 3039 sc->ciss_heartbeat, sc->ciss_heart_attack); 3040 if (sc->ciss_heart_attack == 3) { 3041 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3042 /* XXX should reset adapter here */ 3043 } 3044 } else { 3045 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3046 sc->ciss_heart_attack = 0; 3047 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3048 } 3049 3050 /* 3051 * If the notify event request has died for some reason, or has 3052 * not started yet, restart it. 3053 */ 3054 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3055 debug(0, "(re)starting Event Notify chain"); 3056 ciss_notify_event(sc); 3057 } 3058 3059 /* 3060 * Reschedule. 3061 */ 3062 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 3063 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 3064 } 3065 3066 /************************************************************************ 3067 * Request a notification response from the adapter. 3068 * 3069 * If (cr) is NULL, this is the first request of the adapter, so 3070 * reset the adapter's message pointer and start with the oldest 3071 * message available. 3072 */ 3073 static void 3074 ciss_notify_event(struct ciss_softc *sc) 3075 { 3076 struct ciss_request *cr; 3077 struct ciss_command *cc; 3078 struct ciss_notify_cdb *cnc; 3079 int error; 3080 3081 debug_called(1); 3082 3083 cr = sc->ciss_periodic_notify; 3084 3085 /* get a request if we don't already have one */ 3086 if (cr == NULL) { 3087 if ((error = ciss_get_request(sc, &cr)) != 0) { 3088 debug(0, "can't get notify event request"); 3089 goto out; 3090 } 3091 sc->ciss_periodic_notify = cr; 3092 cr->cr_complete = ciss_notify_complete; 3093 debug(1, "acquired request %d", cr->cr_tag); 3094 } 3095 3096 /* 3097 * Get a databuffer if we don't already have one, note that the 3098 * adapter command wants a larger buffer than the actual 3099 * structure. 3100 */ 3101 if (cr->cr_data == NULL) { 3102 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3103 debug(0, "can't get notify event request buffer"); 3104 error = ENOMEM; 3105 goto out; 3106 } 3107 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3108 } 3109 3110 /* re-setup the request's command (since we never release it) XXX overkill*/ 3111 ciss_preen_command(cr); 3112 3113 /* (re)build the notify event command */ 3114 cc = CISS_FIND_COMMAND(cr); 3115 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3116 cc->header.address.physical.bus = 0; 3117 cc->header.address.physical.target = 0; 3118 3119 cc->cdb.cdb_length = sizeof(*cnc); 3120 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3121 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3122 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3123 cc->cdb.timeout = 0; /* no timeout, we hope */ 3124 3125 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3126 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3127 cnc->opcode = CISS_OPCODE_READ; 3128 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3129 cnc->timeout = 0; /* no timeout, we hope */ 3130 cnc->synchronous = 0; 3131 cnc->ordered = 0; 3132 cnc->seek_to_oldest = 0; 3133 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3134 cnc->new_only = 1; 3135 else 3136 cnc->new_only = 0; 3137 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3138 3139 /* submit the request */ 3140 error = ciss_start(cr); 3141 3142 out: 3143 if (error) { 3144 if (cr != NULL) { 3145 if (cr->cr_data != NULL) 3146 free(cr->cr_data, CISS_MALLOC_CLASS); 3147 ciss_release_request(cr); 3148 } 3149 sc->ciss_periodic_notify = NULL; 3150 debug(0, "can't submit notify event request"); 3151 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3152 } else { 3153 debug(1, "notify event submitted"); 3154 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3155 } 3156 } 3157 3158 static void 3159 ciss_notify_complete(struct ciss_request *cr) 3160 { 3161 struct ciss_command *cc; 3162 struct ciss_notify *cn; 3163 struct ciss_softc *sc; 3164 int scsi_status; 3165 int command_status; 3166 debug_called(1); 3167 3168 cc = CISS_FIND_COMMAND(cr); 3169 cn = (struct ciss_notify *)cr->cr_data; 3170 sc = cr->cr_sc; 3171 3172 /* 3173 * Report request results, decode status. 3174 */ 3175 ciss_report_request(cr, &command_status, &scsi_status); 3176 3177 /* 3178 * Abort the chain on a fatal error. 3179 * 3180 * XXX which of these are actually errors? 3181 */ 3182 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3183 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3184 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3185 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3186 ciss_name_command_status(command_status)); 3187 ciss_release_request(cr); 3188 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3189 return; 3190 } 3191 3192 /* 3193 * If the adapter gave us a text message, print it. 3194 */ 3195 if (cn->message[0] != 0) 3196 ciss_printf(sc, "*** %.80s\n", cn->message); 3197 3198 debug(0, "notify event class %d subclass %d detail %d", 3199 cn->class, cn->subclass, cn->detail); 3200 3201 /* 3202 * If the response indicates that the notifier has been aborted, 3203 * release the notifier command. 3204 */ 3205 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3206 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3207 (cn->detail == 1)) { 3208 debug(0, "notifier exiting"); 3209 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3210 ciss_release_request(cr); 3211 sc->ciss_periodic_notify = NULL; 3212 wakeup(&sc->ciss_periodic_notify); 3213 } else { 3214 /* Handle notify events in a kernel thread */ 3215 ciss_enqueue_notify(cr); 3216 sc->ciss_periodic_notify = NULL; 3217 wakeup(&sc->ciss_periodic_notify); 3218 wakeup(&sc->ciss_notify); 3219 } 3220 /* 3221 * Send a new notify event command, if we're not aborting. 3222 */ 3223 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3224 ciss_notify_event(sc); 3225 } 3226 } 3227 3228 /************************************************************************ 3229 * Abort the Notify Event chain. 3230 * 3231 * Note that we can't just abort the command in progress; we have to 3232 * explicitly issue an Abort Notify Event command in order for the 3233 * adapter to clean up correctly. 3234 * 3235 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3236 * the chain will not restart itself. 3237 */ 3238 static int 3239 ciss_notify_abort(struct ciss_softc *sc) 3240 { 3241 struct ciss_request *cr; 3242 struct ciss_command *cc; 3243 struct ciss_notify_cdb *cnc; 3244 int error, s, command_status, scsi_status; 3245 3246 debug_called(1); 3247 3248 cr = NULL; 3249 error = 0; 3250 3251 /* verify that there's an outstanding command */ 3252 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3253 goto out; 3254 3255 /* get a command to issue the abort with */ 3256 if ((error = ciss_get_request(sc, &cr))) 3257 goto out; 3258 3259 /* get a buffer for the result */ 3260 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3261 debug(0, "can't get notify event request buffer"); 3262 error = ENOMEM; 3263 goto out; 3264 } 3265 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3266 3267 /* build the CDB */ 3268 cc = CISS_FIND_COMMAND(cr); 3269 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3270 cc->header.address.physical.bus = 0; 3271 cc->header.address.physical.target = 0; 3272 cc->cdb.cdb_length = sizeof(*cnc); 3273 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3274 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3275 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3276 cc->cdb.timeout = 0; /* no timeout, we hope */ 3277 3278 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3279 bzero(cnc, sizeof(*cnc)); 3280 cnc->opcode = CISS_OPCODE_WRITE; 3281 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3282 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3283 3284 ciss_print_request(cr); 3285 3286 /* 3287 * Submit the request and wait for it to complete. 3288 */ 3289 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3290 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3291 goto out; 3292 } 3293 3294 /* 3295 * Check response. 3296 */ 3297 ciss_report_request(cr, &command_status, &scsi_status); 3298 switch(command_status) { 3299 case CISS_CMD_STATUS_SUCCESS: 3300 break; 3301 case CISS_CMD_STATUS_INVALID_COMMAND: 3302 /* 3303 * Some older adapters don't support the CISS version of this 3304 * command. Fall back to using the BMIC version. 3305 */ 3306 error = ciss_notify_abort_bmic(sc); 3307 if (error != 0) 3308 goto out; 3309 break; 3310 3311 case CISS_CMD_STATUS_TARGET_STATUS: 3312 /* 3313 * This can happen if the adapter thinks there wasn't an outstanding 3314 * Notify Event command but we did. We clean up here. 3315 */ 3316 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3317 if (sc->ciss_periodic_notify != NULL) 3318 ciss_release_request(sc->ciss_periodic_notify); 3319 error = 0; 3320 goto out; 3321 } 3322 /* FALLTHROUGH */ 3323 3324 default: 3325 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3326 ciss_name_command_status(command_status)); 3327 error = EIO; 3328 goto out; 3329 } 3330 3331 /* 3332 * Sleep waiting for the notifier command to complete. Note 3333 * that if it doesn't, we may end up in a bad situation, since 3334 * the adapter may deliver it later. Also note that the adapter 3335 * requires the Notify Event command to be cancelled in order to 3336 * maintain internal bookkeeping. 3337 */ 3338 s = splcam(); 3339 while (sc->ciss_periodic_notify != NULL) { 3340 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3341 if (error == EWOULDBLOCK) { 3342 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3343 break; 3344 } 3345 } 3346 splx(s); 3347 3348 out: 3349 /* release the cancel request */ 3350 if (cr != NULL) { 3351 if (cr->cr_data != NULL) 3352 free(cr->cr_data, CISS_MALLOC_CLASS); 3353 ciss_release_request(cr); 3354 } 3355 if (error == 0) 3356 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3357 return(error); 3358 } 3359 3360 /************************************************************************ 3361 * Abort the Notify Event chain using a BMIC command. 3362 */ 3363 static int 3364 ciss_notify_abort_bmic(struct ciss_softc *sc) 3365 { 3366 struct ciss_request *cr; 3367 int error, command_status; 3368 3369 debug_called(1); 3370 3371 cr = NULL; 3372 error = 0; 3373 3374 /* verify that there's an outstanding command */ 3375 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3376 goto out; 3377 3378 /* 3379 * Build a BMIC command to cancel the Notify on Event command. 3380 * 3381 * Note that we are sending a CISS opcode here. Odd. 3382 */ 3383 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3384 NULL, 0)) != 0) 3385 goto out; 3386 3387 /* 3388 * Submit the request and wait for it to complete. 3389 */ 3390 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3391 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3392 goto out; 3393 } 3394 3395 /* 3396 * Check response. 3397 */ 3398 ciss_report_request(cr, &command_status, NULL); 3399 switch(command_status) { 3400 case CISS_CMD_STATUS_SUCCESS: 3401 break; 3402 default: 3403 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3404 ciss_name_command_status(command_status)); 3405 error = EIO; 3406 goto out; 3407 } 3408 3409 out: 3410 if (cr != NULL) 3411 ciss_release_request(cr); 3412 return(error); 3413 } 3414 3415 /************************************************************************ 3416 * Handle rescanning all the logical volumes when a notify event 3417 * causes the drives to come online or offline. 3418 */ 3419 static void 3420 ciss_notify_rescan_logical(struct ciss_softc *sc) 3421 { 3422 struct ciss_lun_report *cll; 3423 struct ciss_ldrive *ld; 3424 int i, j, ndrives; 3425 3426 /* 3427 * We must rescan all logical volumes to get the right logical 3428 * drive address. 3429 */ 3430 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3431 CISS_MAX_LOGICAL); 3432 if (cll == NULL) 3433 return; 3434 3435 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3436 3437 /* 3438 * Delete any of the drives which were destroyed by the 3439 * firmware. 3440 */ 3441 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3442 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3443 ld = &sc->ciss_logical[i][j]; 3444 3445 if (ld->cl_update == 0) 3446 continue; 3447 3448 if (ld->cl_status != CISS_LD_ONLINE) { 3449 ciss_cam_rescan_target(sc, i, j); 3450 ld->cl_update = 0; 3451 if (ld->cl_ldrive) 3452 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3453 if (ld->cl_lstatus) 3454 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3455 3456 ld->cl_ldrive = NULL; 3457 ld->cl_lstatus = NULL; 3458 } 3459 } 3460 } 3461 3462 /* 3463 * Scan for new drives. 3464 */ 3465 for (i = 0; i < ndrives; i++) { 3466 int bus, target; 3467 3468 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3469 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3470 ld = &sc->ciss_logical[bus][target]; 3471 3472 if (ld->cl_update == 0) 3473 continue; 3474 3475 ld->cl_update = 0; 3476 ld->cl_address = cll->lun[i]; 3477 ld->cl_controller = &sc->ciss_controllers[bus]; 3478 if (ciss_identify_logical(sc, ld) == 0) { 3479 ciss_cam_rescan_target(sc, bus, target); 3480 } 3481 } 3482 free(cll, CISS_MALLOC_CLASS); 3483 } 3484 3485 /************************************************************************ 3486 * Handle a notify event relating to the status of a logical drive. 3487 * 3488 * XXX need to be able to defer some of these to properly handle 3489 * calling the "ID Physical drive" command, unless the 'extended' 3490 * drive IDs are always in BIG_MAP format. 3491 */ 3492 static void 3493 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3494 { 3495 struct ciss_ldrive *ld; 3496 int ostatus, bus, target; 3497 3498 debug_called(2); 3499 3500 bus = cn->device.physical.bus; 3501 target = cn->data.logical_status.logical_drive; 3502 ld = &sc->ciss_logical[bus][target]; 3503 3504 switch (cn->subclass) { 3505 case CISS_NOTIFY_LOGICAL_STATUS: 3506 switch (cn->detail) { 3507 case 0: 3508 ciss_name_device(sc, bus, target); 3509 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3510 cn->data.logical_status.logical_drive, ld->cl_name, 3511 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3512 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3513 cn->data.logical_status.spare_state, 3514 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3515 3516 /* 3517 * Update our idea of the drive's status. 3518 */ 3519 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3520 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3521 if (ld->cl_lstatus != NULL) 3522 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3523 3524 /* 3525 * Have CAM rescan the drive if its status has changed. 3526 */ 3527 if (ostatus != ld->cl_status) { 3528 ld->cl_update = 1; 3529 ciss_notify_rescan_logical(sc); 3530 } 3531 3532 break; 3533 3534 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3535 ciss_name_device(sc, bus, target); 3536 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3537 cn->data.logical_status.logical_drive, ld->cl_name); 3538 ciss_accept_media(sc, ld); 3539 3540 ld->cl_update = 1; 3541 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3542 ciss_notify_rescan_logical(sc); 3543 break; 3544 3545 case 2: 3546 case 3: 3547 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3548 cn->data.rebuild_aborted.logical_drive, 3549 ld->cl_name, 3550 (cn->detail == 2) ? "read" : "write"); 3551 break; 3552 } 3553 break; 3554 3555 case CISS_NOTIFY_LOGICAL_ERROR: 3556 if (cn->detail == 0) { 3557 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3558 cn->data.io_error.logical_drive, 3559 ld->cl_name, 3560 cn->data.io_error.failure_bus, 3561 cn->data.io_error.failure_drive); 3562 /* XXX should we take the drive down at this point, or will we be told? */ 3563 } 3564 break; 3565 3566 case CISS_NOTIFY_LOGICAL_SURFACE: 3567 if (cn->detail == 0) 3568 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3569 cn->data.consistency_completed.logical_drive, 3570 ld->cl_name); 3571 break; 3572 } 3573 } 3574 3575 /************************************************************************ 3576 * Handle a notify event relating to the status of a physical drive. 3577 */ 3578 static void 3579 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3580 { 3581 } 3582 3583 /************************************************************************ 3584 * Handle a notify event relating to the status of a physical drive. 3585 */ 3586 static void 3587 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3588 { 3589 struct ciss_lun_report *cll; 3590 int bus, target; 3591 int s; 3592 3593 switch (cn->subclass) { 3594 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3595 case CISS_NOTIFY_HOTPLUG_NONDISK: 3596 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3597 target = 3598 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3599 3600 s = splcam(); 3601 if (cn->detail == 0) { 3602 /* 3603 * Mark the device offline so that it'll start producing selection 3604 * timeouts to the upper layer. 3605 */ 3606 if ((bus >= 0) && (target >= 0)) 3607 sc->ciss_physical[bus][target].cp_online = 0; 3608 } else { 3609 /* 3610 * Rescan the physical lun list for new items 3611 */ 3612 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3613 CISS_MAX_PHYSICAL); 3614 if (cll == NULL) { 3615 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3616 break; 3617 } 3618 ciss_filter_physical(sc, cll); 3619 } 3620 splx(s); 3621 break; 3622 3623 default: 3624 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3625 return; 3626 } 3627 } 3628 3629 /************************************************************************ 3630 * Handle deferred processing of notify events. Notify events may need 3631 * sleep which is unsafe during an interrupt. 3632 */ 3633 static void 3634 ciss_notify_thread(void *arg) 3635 { 3636 struct ciss_softc *sc; 3637 struct ciss_request *cr; 3638 struct ciss_notify *cn; 3639 int s; 3640 3641 #if __FreeBSD_version >= 500000 3642 mtx_lock(&Giant); 3643 #endif 3644 sc = (struct ciss_softc *)arg; 3645 3646 s = splcam(); 3647 for (;;) { 3648 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3649 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3650 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3651 } 3652 3653 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3654 break; 3655 3656 cr = ciss_dequeue_notify(sc); 3657 splx(s); 3658 3659 if (cr == NULL) 3660 panic("cr null"); 3661 cn = (struct ciss_notify *)cr->cr_data; 3662 3663 switch (cn->class) { 3664 case CISS_NOTIFY_HOTPLUG: 3665 ciss_notify_hotplug(sc, cn); 3666 break; 3667 case CISS_NOTIFY_LOGICAL: 3668 ciss_notify_logical(sc, cn); 3669 break; 3670 case CISS_NOTIFY_PHYSICAL: 3671 ciss_notify_physical(sc, cn); 3672 break; 3673 } 3674 3675 ciss_release_request(cr); 3676 3677 s = splcam(); 3678 } 3679 sc->ciss_notify_thread = NULL; 3680 wakeup(&sc->ciss_notify_thread); 3681 splx(s); 3682 3683 #if __FreeBSD_version >= 500000 3684 mtx_unlock(&Giant); 3685 #endif 3686 kthread_exit(0); 3687 } 3688 3689 /************************************************************************ 3690 * Start the notification kernel thread. 3691 */ 3692 static void 3693 ciss_spawn_notify_thread(struct ciss_softc *sc) 3694 { 3695 3696 #if __FreeBSD_version > 500005 3697 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3698 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3699 device_get_unit(sc->ciss_dev))) 3700 #else 3701 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3702 &sc->ciss_notify_thread, "ciss_notify%d", 3703 device_get_unit(sc->ciss_dev))) 3704 #endif 3705 panic("Could not create notify thread\n"); 3706 } 3707 3708 /************************************************************************ 3709 * Kill the notification kernel thread. 3710 */ 3711 static void 3712 ciss_kill_notify_thread(struct ciss_softc *sc) 3713 { 3714 3715 if (sc->ciss_notify_thread == NULL) 3716 return; 3717 3718 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3719 wakeup(&sc->ciss_notify); 3720 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3721 } 3722 3723 /************************************************************************ 3724 * Print a request. 3725 */ 3726 static void 3727 ciss_print_request(struct ciss_request *cr) 3728 { 3729 struct ciss_softc *sc; 3730 struct ciss_command *cc; 3731 int i; 3732 3733 sc = cr->cr_sc; 3734 cc = CISS_FIND_COMMAND(cr); 3735 3736 ciss_printf(sc, "REQUEST @ %p\n", cr); 3737 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3738 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3739 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3740 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3741 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3742 switch(cc->header.address.mode.mode) { 3743 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3744 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3745 ciss_printf(sc, " physical bus %d target %d\n", 3746 cc->header.address.physical.bus, cc->header.address.physical.target); 3747 break; 3748 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3749 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3750 break; 3751 } 3752 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3753 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3754 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3755 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3756 cc->cdb.cdb_length, 3757 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3758 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3759 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3760 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3761 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3762 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3763 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3764 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3765 3766 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3767 /* XXX print error info */ 3768 } else { 3769 /* since we don't use chained s/g, don't support it here */ 3770 for (i = 0; i < cc->header.sg_in_list; i++) { 3771 if ((i % 4) == 0) 3772 ciss_printf(sc, " "); 3773 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3774 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3775 printf("\n"); 3776 } 3777 } 3778 } 3779 3780 /************************************************************************ 3781 * Print information about the status of a logical drive. 3782 */ 3783 static void 3784 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3785 { 3786 int bus, target, i; 3787 3788 if (ld->cl_lstatus == NULL) { 3789 printf("does not exist\n"); 3790 return; 3791 } 3792 3793 /* print drive status */ 3794 switch(ld->cl_lstatus->status) { 3795 case CISS_LSTATUS_OK: 3796 printf("online\n"); 3797 break; 3798 case CISS_LSTATUS_INTERIM_RECOVERY: 3799 printf("in interim recovery mode\n"); 3800 break; 3801 case CISS_LSTATUS_READY_RECOVERY: 3802 printf("ready to begin recovery\n"); 3803 break; 3804 case CISS_LSTATUS_RECOVERING: 3805 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3806 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3807 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3808 bus, target, ld->cl_lstatus->blocks_to_recover); 3809 break; 3810 case CISS_LSTATUS_EXPANDING: 3811 printf("being expanded, %u blocks remaining\n", 3812 ld->cl_lstatus->blocks_to_recover); 3813 break; 3814 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3815 printf("queued for expansion\n"); 3816 break; 3817 case CISS_LSTATUS_FAILED: 3818 printf("queued for expansion\n"); 3819 break; 3820 case CISS_LSTATUS_WRONG_PDRIVE: 3821 printf("wrong physical drive inserted\n"); 3822 break; 3823 case CISS_LSTATUS_MISSING_PDRIVE: 3824 printf("missing a needed physical drive\n"); 3825 break; 3826 case CISS_LSTATUS_BECOMING_READY: 3827 printf("becoming ready\n"); 3828 break; 3829 } 3830 3831 /* print failed physical drives */ 3832 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3833 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3834 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3835 if (bus == -1) 3836 continue; 3837 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3838 ld->cl_lstatus->drive_failure_map[i]); 3839 } 3840 } 3841 3842 #ifdef CISS_DEBUG 3843 /************************************************************************ 3844 * Print information about the controller/driver. 3845 */ 3846 static void 3847 ciss_print_adapter(struct ciss_softc *sc) 3848 { 3849 int i, j; 3850 3851 ciss_printf(sc, "ADAPTER:\n"); 3852 for (i = 0; i < CISSQ_COUNT; i++) { 3853 ciss_printf(sc, "%s %d/%d\n", 3854 i == 0 ? "free" : 3855 i == 1 ? "busy" : "complete", 3856 sc->ciss_qstat[i].q_length, 3857 sc->ciss_qstat[i].q_max); 3858 } 3859 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3860 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3861 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3862 3863 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3864 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3865 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3866 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3867 } 3868 } 3869 3870 /* XXX Should physical drives be printed out here? */ 3871 3872 for (i = 1; i < sc->ciss_max_requests; i++) 3873 ciss_print_request(sc->ciss_request + i); 3874 } 3875 3876 /* DDB hook */ 3877 static void 3878 ciss_print0(void) 3879 { 3880 struct ciss_softc *sc; 3881 3882 sc = devclass_get_softc(devclass_find("ciss"), 0); 3883 if (sc == NULL) { 3884 printf("no ciss controllers\n"); 3885 } else { 3886 ciss_print_adapter(sc); 3887 } 3888 } 3889 #endif 3890 3891 /************************************************************************ 3892 * Return a name for a logical drive status value. 3893 */ 3894 static const char * 3895 ciss_name_ldrive_status(int status) 3896 { 3897 switch (status) { 3898 case CISS_LSTATUS_OK: 3899 return("OK"); 3900 case CISS_LSTATUS_FAILED: 3901 return("failed"); 3902 case CISS_LSTATUS_NOT_CONFIGURED: 3903 return("not configured"); 3904 case CISS_LSTATUS_INTERIM_RECOVERY: 3905 return("interim recovery"); 3906 case CISS_LSTATUS_READY_RECOVERY: 3907 return("ready for recovery"); 3908 case CISS_LSTATUS_RECOVERING: 3909 return("recovering"); 3910 case CISS_LSTATUS_WRONG_PDRIVE: 3911 return("wrong physical drive inserted"); 3912 case CISS_LSTATUS_MISSING_PDRIVE: 3913 return("missing physical drive"); 3914 case CISS_LSTATUS_EXPANDING: 3915 return("expanding"); 3916 case CISS_LSTATUS_BECOMING_READY: 3917 return("becoming ready"); 3918 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3919 return("queued for expansion"); 3920 } 3921 return("unknown status"); 3922 } 3923 3924 /************************************************************************ 3925 * Return an online/offline/nonexistent value for a logical drive 3926 * status value. 3927 */ 3928 static int 3929 ciss_decode_ldrive_status(int status) 3930 { 3931 switch(status) { 3932 case CISS_LSTATUS_NOT_CONFIGURED: 3933 return(CISS_LD_NONEXISTENT); 3934 3935 case CISS_LSTATUS_OK: 3936 case CISS_LSTATUS_INTERIM_RECOVERY: 3937 case CISS_LSTATUS_READY_RECOVERY: 3938 case CISS_LSTATUS_RECOVERING: 3939 case CISS_LSTATUS_EXPANDING: 3940 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3941 return(CISS_LD_ONLINE); 3942 3943 case CISS_LSTATUS_FAILED: 3944 case CISS_LSTATUS_WRONG_PDRIVE: 3945 case CISS_LSTATUS_MISSING_PDRIVE: 3946 case CISS_LSTATUS_BECOMING_READY: 3947 default: 3948 return(CISS_LD_OFFLINE); 3949 } 3950 } 3951 3952 3953 /************************************************************************ 3954 * Return a name for a logical drive's organisation. 3955 */ 3956 static const char * 3957 ciss_name_ldrive_org(int org) 3958 { 3959 switch(org) { 3960 case CISS_LDRIVE_RAID0: 3961 return("RAID 0"); 3962 case CISS_LDRIVE_RAID1: 3963 return("RAID 1"); 3964 case CISS_LDRIVE_RAID4: 3965 return("RAID 4"); 3966 case CISS_LDRIVE_RAID5: 3967 return("RAID 5"); 3968 case CISS_LDRIVE_RAID51: 3969 return("RAID 5+1"); 3970 case CISS_LDRIVE_RAIDADG: 3971 return("RAID ADG"); 3972 } 3973 return("unkown"); 3974 } 3975 3976 /************************************************************************ 3977 * Return a name for a command status value. 3978 */ 3979 static const char * 3980 ciss_name_command_status(int status) 3981 { 3982 switch(status) { 3983 case CISS_CMD_STATUS_SUCCESS: 3984 return("success"); 3985 case CISS_CMD_STATUS_TARGET_STATUS: 3986 return("target status"); 3987 case CISS_CMD_STATUS_DATA_UNDERRUN: 3988 return("data underrun"); 3989 case CISS_CMD_STATUS_DATA_OVERRUN: 3990 return("data overrun"); 3991 case CISS_CMD_STATUS_INVALID_COMMAND: 3992 return("invalid command"); 3993 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3994 return("protocol error"); 3995 case CISS_CMD_STATUS_HARDWARE_ERROR: 3996 return("hardware error"); 3997 case CISS_CMD_STATUS_CONNECTION_LOST: 3998 return("connection lost"); 3999 case CISS_CMD_STATUS_ABORTED: 4000 return("aborted"); 4001 case CISS_CMD_STATUS_ABORT_FAILED: 4002 return("abort failed"); 4003 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4004 return("unsolicited abort"); 4005 case CISS_CMD_STATUS_TIMEOUT: 4006 return("timeout"); 4007 case CISS_CMD_STATUS_UNABORTABLE: 4008 return("unabortable"); 4009 } 4010 return("unknown status"); 4011 } 4012 4013 /************************************************************************ 4014 * Handle an open on the control device. 4015 */ 4016 static int 4017 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4018 { 4019 struct ciss_softc *sc; 4020 4021 debug_called(1); 4022 4023 sc = (struct ciss_softc *)dev->si_drv1; 4024 4025 /* we might want to veto if someone already has us open */ 4026 4027 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4028 return(0); 4029 } 4030 4031 /************************************************************************ 4032 * Handle the last close on the control device. 4033 */ 4034 static int 4035 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4036 { 4037 struct ciss_softc *sc; 4038 4039 debug_called(1); 4040 4041 sc = (struct ciss_softc *)dev->si_drv1; 4042 4043 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4044 return (0); 4045 } 4046 4047 /******************************************************************************** 4048 * Handle adapter-specific control operations. 4049 * 4050 * Note that the API here is compatible with the Linux driver, in order to 4051 * simplify the porting of Compaq's userland tools. 4052 */ 4053 static int 4054 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4055 { 4056 struct ciss_softc *sc; 4057 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4058 #ifdef __amd64__ 4059 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4060 IOCTL_Command_struct ioc_swab; 4061 #endif 4062 int error; 4063 4064 debug_called(1); 4065 4066 sc = (struct ciss_softc *)dev->si_drv1; 4067 error = 0; 4068 4069 switch(cmd) { 4070 case CCISS_GETPCIINFO: 4071 { 4072 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4073 4074 pis->bus = pci_get_bus(sc->ciss_dev); 4075 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4076 pis->board_id = pci_get_devid(sc->ciss_dev); 4077 4078 break; 4079 } 4080 4081 case CCISS_GETINTINFO: 4082 { 4083 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4084 4085 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4086 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4087 4088 break; 4089 } 4090 4091 case CCISS_SETINTINFO: 4092 { 4093 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4094 4095 if ((cis->delay == 0) && (cis->count == 0)) { 4096 error = EINVAL; 4097 break; 4098 } 4099 4100 /* 4101 * XXX apparently this is only safe if the controller is idle, 4102 * we should suspend it before doing this. 4103 */ 4104 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4105 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4106 4107 if (ciss_update_config(sc)) 4108 error = EIO; 4109 4110 /* XXX resume the controller here */ 4111 break; 4112 } 4113 4114 case CCISS_GETNODENAME: 4115 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4116 sizeof(NodeName_type)); 4117 break; 4118 4119 case CCISS_SETNODENAME: 4120 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4121 sizeof(NodeName_type)); 4122 if (ciss_update_config(sc)) 4123 error = EIO; 4124 break; 4125 4126 case CCISS_GETHEARTBEAT: 4127 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4128 break; 4129 4130 case CCISS_GETBUSTYPES: 4131 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4132 break; 4133 4134 case CCISS_GETFIRMVER: 4135 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4136 sizeof(FirmwareVer_type)); 4137 break; 4138 4139 case CCISS_GETDRIVERVER: 4140 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4141 break; 4142 4143 case CCISS_REVALIDVOLS: 4144 /* 4145 * This is a bit ugly; to do it "right" we really need 4146 * to find any disks that have changed, kick CAM off them, 4147 * then rescan only these disks. It'd be nice if they 4148 * a) told us which disk(s) they were going to play with, 4149 * and b) which ones had arrived. 8( 4150 */ 4151 break; 4152 4153 #ifdef __amd64__ 4154 case CCISS_PASSTHRU32: 4155 ioc_swab.LUN_info = ioc32->LUN_info; 4156 ioc_swab.Request = ioc32->Request; 4157 ioc_swab.error_info = ioc32->error_info; 4158 ioc_swab.buf_size = ioc32->buf_size; 4159 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4160 ioc = &ioc_swab; 4161 /* FALLTHROUGH */ 4162 #endif 4163 4164 case CCISS_PASSTHRU: 4165 error = ciss_user_command(sc, ioc); 4166 break; 4167 4168 default: 4169 debug(0, "unknown ioctl 0x%lx", cmd); 4170 4171 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4172 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4173 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4174 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4175 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4176 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4177 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4178 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4179 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4180 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4181 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4182 4183 error = ENOIOCTL; 4184 break; 4185 } 4186 4187 return(error); 4188 } 4189