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, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 274 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 275 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 276 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 277 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 278 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 280 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 281 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 282 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 287 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 288 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 291 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 292 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 293 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 294 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 295 { 0, 0, 0, NULL } 296 }; 297 298 /************************************************************************ 299 * Find a match for the device in our list of known adapters. 300 */ 301 static int 302 ciss_lookup(device_t dev) 303 { 304 int i; 305 306 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 307 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 308 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 309 return(i); 310 } 311 return(-1); 312 } 313 314 /************************************************************************ 315 * Match a known CISS adapter. 316 */ 317 static int 318 ciss_probe(device_t dev) 319 { 320 int i; 321 322 i = ciss_lookup(dev); 323 if (i != -1) { 324 device_set_desc(dev, ciss_vendor_data[i].desc); 325 return(BUS_PROBE_DEFAULT); 326 } 327 return(ENOENT); 328 } 329 330 /************************************************************************ 331 * Attach the driver to this adapter. 332 */ 333 static int 334 ciss_attach(device_t dev) 335 { 336 struct ciss_softc *sc; 337 int i, error; 338 339 debug_called(1); 340 341 #ifdef CISS_DEBUG 342 /* print structure/union sizes */ 343 debug_struct(ciss_command); 344 debug_struct(ciss_header); 345 debug_union(ciss_device_address); 346 debug_struct(ciss_cdb); 347 debug_struct(ciss_report_cdb); 348 debug_struct(ciss_notify_cdb); 349 debug_struct(ciss_notify); 350 debug_struct(ciss_message_cdb); 351 debug_struct(ciss_error_info_pointer); 352 debug_struct(ciss_error_info); 353 debug_struct(ciss_sg_entry); 354 debug_struct(ciss_config_table); 355 debug_struct(ciss_bmic_cdb); 356 debug_struct(ciss_bmic_id_ldrive); 357 debug_struct(ciss_bmic_id_lstatus); 358 debug_struct(ciss_bmic_id_table); 359 debug_struct(ciss_bmic_id_pdrive); 360 debug_struct(ciss_bmic_blink_pdrive); 361 debug_struct(ciss_bmic_flush_cache); 362 debug_const(CISS_MAX_REQUESTS); 363 debug_const(CISS_MAX_LOGICAL); 364 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 365 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 366 debug_const(CISS_COMMAND_ALLOC_SIZE); 367 debug_const(CISS_COMMAND_SG_LENGTH); 368 369 debug_type(cciss_pci_info_struct); 370 debug_type(cciss_coalint_struct); 371 debug_type(cciss_coalint_struct); 372 debug_type(NodeName_type); 373 debug_type(NodeName_type); 374 debug_type(Heartbeat_type); 375 debug_type(BusTypes_type); 376 debug_type(FirmwareVer_type); 377 debug_type(DriverVer_type); 378 debug_type(IOCTL_Command_struct); 379 #endif 380 381 sc = device_get_softc(dev); 382 sc->ciss_dev = dev; 383 384 /* 385 * Work out adapter type. 386 */ 387 i = ciss_lookup(dev); 388 if (i < 0) { 389 ciss_printf(sc, "unknown adapter type\n"); 390 error = ENXIO; 391 goto out; 392 } 393 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 394 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 395 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 396 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 397 } else { 398 /* really an error on our part */ 399 ciss_printf(sc, "unable to determine hardware type\n"); 400 error = ENXIO; 401 goto out; 402 } 403 404 /* 405 * Do PCI-specific init. 406 */ 407 if ((error = ciss_init_pci(sc)) != 0) 408 goto out; 409 410 /* 411 * Initialise driver queues. 412 */ 413 ciss_initq_free(sc); 414 ciss_initq_busy(sc); 415 ciss_initq_complete(sc); 416 ciss_initq_notify(sc); 417 418 /* 419 * Initalize device sysctls. 420 */ 421 ciss_init_sysctl(sc); 422 423 /* 424 * Initialise command/request pool. 425 */ 426 if ((error = ciss_init_requests(sc)) != 0) 427 goto out; 428 429 /* 430 * Get adapter information. 431 */ 432 if ((error = ciss_identify_adapter(sc)) != 0) 433 goto out; 434 435 /* 436 * Find all the physical devices. 437 */ 438 if ((error = ciss_init_physical(sc)) != 0) 439 goto out; 440 441 /* 442 * Build our private table of logical devices. 443 */ 444 if ((error = ciss_init_logical(sc)) != 0) 445 goto out; 446 447 /* 448 * Enable interrupts so that the CAM scan can complete. 449 */ 450 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 451 452 /* 453 * Initialise the CAM interface. 454 */ 455 if ((error = ciss_cam_init(sc)) != 0) 456 goto out; 457 458 /* 459 * Start the heartbeat routine and event chain. 460 */ 461 ciss_periodic(sc); 462 463 /* 464 * Create the control device. 465 */ 466 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 467 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 468 "ciss%d", device_get_unit(sc->ciss_dev)); 469 sc->ciss_dev_t->si_drv1 = sc; 470 471 /* 472 * The adapter is running; synchronous commands can now sleep 473 * waiting for an interrupt to signal completion. 474 */ 475 sc->ciss_flags |= CISS_FLAG_RUNNING; 476 477 ciss_spawn_notify_thread(sc); 478 479 error = 0; 480 out: 481 if (error != 0) 482 ciss_free(sc); 483 return(error); 484 } 485 486 /************************************************************************ 487 * Detach the driver from this adapter. 488 */ 489 static int 490 ciss_detach(device_t dev) 491 { 492 struct ciss_softc *sc = device_get_softc(dev); 493 494 debug_called(1); 495 496 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 497 return (EBUSY); 498 499 /* flush adapter cache */ 500 ciss_flush_adapter(sc); 501 502 /* release all resources */ 503 ciss_free(sc); 504 505 return(0); 506 } 507 508 /************************************************************************ 509 * Prepare adapter for system shutdown. 510 */ 511 static int 512 ciss_shutdown(device_t dev) 513 { 514 struct ciss_softc *sc = device_get_softc(dev); 515 516 debug_called(1); 517 518 /* flush adapter cache */ 519 ciss_flush_adapter(sc); 520 521 if (sc->ciss_soft_reset) 522 ciss_soft_reset(sc); 523 524 return(0); 525 } 526 527 static void 528 ciss_init_sysctl(struct ciss_softc *sc) 529 { 530 531 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 532 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 533 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 534 } 535 536 /************************************************************************ 537 * Perform PCI-specific attachment actions. 538 */ 539 static int 540 ciss_init_pci(struct ciss_softc *sc) 541 { 542 uintptr_t cbase, csize, cofs; 543 int error; 544 545 debug_called(1); 546 547 /* 548 * Allocate register window first (we need this to find the config 549 * struct). 550 */ 551 error = ENXIO; 552 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 553 if ((sc->ciss_regs_resource = 554 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 555 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 556 ciss_printf(sc, "can't allocate register window\n"); 557 return(ENXIO); 558 } 559 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 560 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 561 562 /* 563 * Find the BAR holding the config structure. If it's not the one 564 * we already mapped for registers, map it too. 565 */ 566 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 567 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 568 if ((sc->ciss_cfg_resource = 569 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 570 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 571 ciss_printf(sc, "can't allocate config window\n"); 572 return(ENXIO); 573 } 574 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 575 csize = rman_get_end(sc->ciss_cfg_resource) - 576 rman_get_start(sc->ciss_cfg_resource) + 1; 577 } else { 578 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 579 csize = rman_get_end(sc->ciss_regs_resource) - 580 rman_get_start(sc->ciss_regs_resource) + 1; 581 } 582 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 583 584 /* 585 * Use the base/size/offset values we just calculated to 586 * sanity-check the config structure. If it's OK, point to it. 587 */ 588 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 589 ciss_printf(sc, "config table outside window\n"); 590 return(ENXIO); 591 } 592 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 593 debug(1, "config struct at %p", sc->ciss_cfg); 594 595 /* 596 * Validate the config structure. If we supported other transport 597 * methods, we could select amongst them at this point in time. 598 */ 599 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 600 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 601 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 602 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 603 return(ENXIO); 604 } 605 606 /* 607 * Put the board into simple mode, and tell it we're using the low 608 * 4GB of RAM. Set the default interrupt coalescing options. 609 */ 610 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 611 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 612 return(ENXIO); 613 } 614 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 615 sc->ciss_cfg->command_physlimit = 0; 616 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 617 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 618 619 #ifdef __i386__ 620 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 621 #endif 622 623 if (ciss_update_config(sc)) { 624 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 625 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 626 return(ENXIO); 627 } 628 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 629 ciss_printf(sc, 630 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 631 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 632 return(ENXIO); 633 } 634 635 /* 636 * Wait for the adapter to come ready. 637 */ 638 if ((error = ciss_wait_adapter(sc)) != 0) 639 return(error); 640 641 /* 642 * Turn off interrupts before we go routing anything. 643 */ 644 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 645 646 /* 647 * Allocate and set up our interrupt. 648 */ 649 sc->ciss_irq_rid = 0; 650 if ((sc->ciss_irq_resource = 651 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 652 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 653 ciss_printf(sc, "can't allocate interrupt\n"); 654 return(ENXIO); 655 } 656 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 657 INTR_TYPE_CAM|INTR_ENTROPY, ciss_intr, sc, 658 &sc->ciss_intr)) { 659 ciss_printf(sc, "can't set up interrupt\n"); 660 return(ENXIO); 661 } 662 663 /* 664 * Allocate the parent bus DMA tag appropriate for our PCI 665 * interface. 666 * 667 * Note that "simple" adapters can only address within a 32-bit 668 * span. 669 */ 670 if (bus_dma_tag_create(NULL, /* parent */ 671 1, 0, /* alignment, boundary */ 672 BUS_SPACE_MAXADDR, /* lowaddr */ 673 BUS_SPACE_MAXADDR, /* highaddr */ 674 NULL, NULL, /* filter, filterarg */ 675 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 676 CISS_COMMAND_SG_LENGTH, /* nsegments */ 677 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 678 BUS_DMA_ALLOCNOW, /* flags */ 679 NULL, NULL, /* lockfunc, lockarg */ 680 &sc->ciss_parent_dmat)) { 681 ciss_printf(sc, "can't allocate parent DMA tag\n"); 682 return(ENOMEM); 683 } 684 685 /* 686 * Create DMA tag for mapping buffers into adapter-addressable 687 * space. 688 */ 689 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 690 1, 0, /* alignment, boundary */ 691 BUS_SPACE_MAXADDR, /* lowaddr */ 692 BUS_SPACE_MAXADDR, /* highaddr */ 693 NULL, NULL, /* filter, filterarg */ 694 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 695 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 696 0, /* flags */ 697 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 698 &sc->ciss_buffer_dmat)) { 699 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 700 return(ENOMEM); 701 } 702 return(0); 703 } 704 705 /************************************************************************ 706 * Wait for the adapter to come ready. 707 */ 708 static int 709 ciss_wait_adapter(struct ciss_softc *sc) 710 { 711 int i; 712 713 debug_called(1); 714 715 /* 716 * Wait for the adapter to come ready. 717 */ 718 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 719 ciss_printf(sc, "waiting for adapter to come ready...\n"); 720 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 721 DELAY(1000000); /* one second */ 722 if (i > 30) { 723 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 724 return(EIO); 725 } 726 } 727 } 728 return(0); 729 } 730 731 /************************************************************************ 732 * Flush the adapter cache. 733 */ 734 static int 735 ciss_flush_adapter(struct ciss_softc *sc) 736 { 737 struct ciss_request *cr; 738 struct ciss_bmic_flush_cache *cbfc; 739 int error, command_status; 740 741 debug_called(1); 742 743 cr = NULL; 744 cbfc = NULL; 745 746 /* 747 * Build a BMIC request to flush the cache. We don't disable 748 * it, as we may be going to do more I/O (eg. we are emulating 749 * the Synchronise Cache command). 750 */ 751 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 752 error = ENOMEM; 753 goto out; 754 } 755 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 756 (void **)&cbfc, sizeof(*cbfc))) != 0) 757 goto out; 758 759 /* 760 * Submit the request and wait for it to complete. 761 */ 762 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 763 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 764 goto out; 765 } 766 767 /* 768 * Check response. 769 */ 770 ciss_report_request(cr, &command_status, NULL); 771 switch(command_status) { 772 case CISS_CMD_STATUS_SUCCESS: 773 break; 774 default: 775 ciss_printf(sc, "error flushing cache (%s)\n", 776 ciss_name_command_status(command_status)); 777 error = EIO; 778 goto out; 779 } 780 781 out: 782 if (cbfc != NULL) 783 free(cbfc, CISS_MALLOC_CLASS); 784 if (cr != NULL) 785 ciss_release_request(cr); 786 return(error); 787 } 788 789 static void 790 ciss_soft_reset(struct ciss_softc *sc) 791 { 792 struct ciss_request *cr = NULL; 793 struct ciss_command *cc; 794 int i, error = 0; 795 796 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 797 /* only reset proxy controllers */ 798 if (sc->ciss_controllers[i].physical.bus == 0) 799 continue; 800 801 if ((error = ciss_get_request(sc, &cr)) != 0) 802 break; 803 804 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 805 NULL, 0)) != 0) 806 break; 807 808 cc = CISS_FIND_COMMAND(cr); 809 cc->header.address = sc->ciss_controllers[i]; 810 811 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 812 break; 813 814 ciss_release_request(cr); 815 } 816 817 if (error) 818 ciss_printf(sc, "error resetting controller (%d)\n", error); 819 820 if (cr != NULL) 821 ciss_release_request(cr); 822 } 823 824 /************************************************************************ 825 * Allocate memory for the adapter command structures, initialise 826 * the request structures. 827 * 828 * Note that the entire set of commands are allocated in a single 829 * contiguous slab. 830 */ 831 static int 832 ciss_init_requests(struct ciss_softc *sc) 833 { 834 struct ciss_request *cr; 835 int i; 836 837 debug_called(1); 838 839 /* 840 * Calculate the number of request structures/commands we are 841 * going to provide for this adapter. 842 */ 843 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 844 845 if (bootverbose) 846 ciss_printf(sc, "using %d of %d available commands\n", 847 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 848 849 /* 850 * Create the DMA tag for commands. 851 */ 852 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 853 1, 0, /* alignment, boundary */ 854 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 855 BUS_SPACE_MAXADDR, /* highaddr */ 856 NULL, NULL, /* filter, filterarg */ 857 CISS_COMMAND_ALLOC_SIZE * 858 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 859 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 860 BUS_DMA_ALLOCNOW, /* flags */ 861 NULL, NULL, /* lockfunc, lockarg */ 862 &sc->ciss_command_dmat)) { 863 ciss_printf(sc, "can't allocate command DMA tag\n"); 864 return(ENOMEM); 865 } 866 /* 867 * Allocate memory and make it available for DMA. 868 */ 869 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 870 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 871 ciss_printf(sc, "can't allocate command memory\n"); 872 return(ENOMEM); 873 } 874 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 875 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 876 ciss_command_map_helper, sc, 0); 877 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 878 879 /* 880 * Set up the request and command structures, push requests onto 881 * the free queue. 882 */ 883 for (i = 1; i < sc->ciss_max_requests; i++) { 884 cr = &sc->ciss_request[i]; 885 cr->cr_sc = sc; 886 cr->cr_tag = i; 887 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 888 ciss_enqueue_free(cr); 889 } 890 return(0); 891 } 892 893 static void 894 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 895 { 896 struct ciss_softc *sc = (struct ciss_softc *)arg; 897 898 sc->ciss_command_phys = segs->ds_addr; 899 } 900 901 /************************************************************************ 902 * Identify the adapter, print some information about it. 903 */ 904 static int 905 ciss_identify_adapter(struct ciss_softc *sc) 906 { 907 struct ciss_request *cr; 908 int error, command_status; 909 910 debug_called(1); 911 912 cr = NULL; 913 914 /* 915 * Get a request, allocate storage for the adapter data. 916 */ 917 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 918 (void **)&sc->ciss_id, 919 sizeof(*sc->ciss_id))) != 0) 920 goto out; 921 922 /* 923 * Submit the request and wait for it to complete. 924 */ 925 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 926 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 927 goto out; 928 } 929 930 /* 931 * Check response. 932 */ 933 ciss_report_request(cr, &command_status, NULL); 934 switch(command_status) { 935 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 936 break; 937 case CISS_CMD_STATUS_DATA_UNDERRUN: 938 case CISS_CMD_STATUS_DATA_OVERRUN: 939 ciss_printf(sc, "data over/underrun reading adapter information\n"); 940 default: 941 ciss_printf(sc, "error reading adapter information (%s)\n", 942 ciss_name_command_status(command_status)); 943 error = EIO; 944 goto out; 945 } 946 947 /* sanity-check reply */ 948 if (!sc->ciss_id->big_map_supported) { 949 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 950 error = ENXIO; 951 goto out; 952 } 953 954 #if 0 955 /* XXX later revisions may not need this */ 956 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 957 #endif 958 959 /* XXX only really required for old 5300 adapters? */ 960 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 961 962 /* print information */ 963 if (bootverbose) { 964 #if 0 /* XXX proxy volumes??? */ 965 ciss_printf(sc, " %d logical drive%s configured\n", 966 sc->ciss_id->configured_logical_drives, 967 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 968 #endif 969 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 970 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 971 972 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 973 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 974 ciss_printf(sc, " supported I/O methods 0x%b\n", 975 sc->ciss_cfg->supported_methods, 976 "\20\1READY\2simple\3performant\4MEMQ\n"); 977 ciss_printf(sc, " active I/O method 0x%b\n", 978 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 979 ciss_printf(sc, " 4G page base 0x%08x\n", 980 sc->ciss_cfg->command_physlimit); 981 ciss_printf(sc, " interrupt coalesce delay %dus\n", 982 sc->ciss_cfg->interrupt_coalesce_delay); 983 ciss_printf(sc, " interrupt coalesce count %d\n", 984 sc->ciss_cfg->interrupt_coalesce_count); 985 ciss_printf(sc, " max outstanding commands %d\n", 986 sc->ciss_cfg->max_outstanding_commands); 987 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 988 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 989 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 990 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 991 } 992 993 out: 994 if (error) { 995 if (sc->ciss_id != NULL) { 996 free(sc->ciss_id, CISS_MALLOC_CLASS); 997 sc->ciss_id = NULL; 998 } 999 } 1000 if (cr != NULL) 1001 ciss_release_request(cr); 1002 return(error); 1003 } 1004 1005 /************************************************************************ 1006 * Helper routine for generating a list of logical and physical luns. 1007 */ 1008 static struct ciss_lun_report * 1009 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1010 { 1011 struct ciss_request *cr; 1012 struct ciss_command *cc; 1013 struct ciss_report_cdb *crc; 1014 struct ciss_lun_report *cll; 1015 int command_status; 1016 int report_size; 1017 int error = 0; 1018 1019 debug_called(1); 1020 1021 cr = NULL; 1022 cll = NULL; 1023 1024 /* 1025 * Get a request, allocate storage for the address list. 1026 */ 1027 if ((error = ciss_get_request(sc, &cr)) != 0) 1028 goto out; 1029 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1030 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1031 ciss_printf(sc, "can't allocate memory for lun report\n"); 1032 error = ENOMEM; 1033 goto out; 1034 } 1035 1036 /* 1037 * Build the Report Logical/Physical LUNs command. 1038 */ 1039 cc = CISS_FIND_COMMAND(cr); 1040 cr->cr_data = cll; 1041 cr->cr_length = report_size; 1042 cr->cr_flags = CISS_REQ_DATAIN; 1043 1044 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1045 cc->header.address.physical.bus = 0; 1046 cc->header.address.physical.target = 0; 1047 cc->cdb.cdb_length = sizeof(*crc); 1048 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1049 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1050 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1051 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1052 1053 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1054 bzero(crc, sizeof(*crc)); 1055 crc->opcode = opcode; 1056 crc->length = htonl(report_size); /* big-endian field */ 1057 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1058 1059 /* 1060 * Submit the request and wait for it to complete. (timeout 1061 * here should be much greater than above) 1062 */ 1063 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1064 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1065 goto out; 1066 } 1067 1068 /* 1069 * Check response. Note that data over/underrun is OK. 1070 */ 1071 ciss_report_request(cr, &command_status, NULL); 1072 switch(command_status) { 1073 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1074 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1075 break; 1076 case CISS_CMD_STATUS_DATA_OVERRUN: 1077 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1078 CISS_MAX_LOGICAL); 1079 break; 1080 default: 1081 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1082 ciss_name_command_status(command_status)); 1083 error = EIO; 1084 goto out; 1085 } 1086 ciss_release_request(cr); 1087 cr = NULL; 1088 1089 out: 1090 if (cr != NULL) 1091 ciss_release_request(cr); 1092 if (error && cll != NULL) { 1093 free(cll, CISS_MALLOC_CLASS); 1094 cll = NULL; 1095 } 1096 return(cll); 1097 } 1098 1099 /************************************************************************ 1100 * Find logical drives on the adapter. 1101 */ 1102 static int 1103 ciss_init_logical(struct ciss_softc *sc) 1104 { 1105 struct ciss_lun_report *cll; 1106 int error = 0, i, j; 1107 int ndrives; 1108 1109 debug_called(1); 1110 1111 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1112 CISS_MAX_LOGICAL); 1113 if (cll == NULL) { 1114 error = ENXIO; 1115 goto out; 1116 } 1117 1118 /* sanity-check reply */ 1119 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1120 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1121 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1122 ndrives, CISS_MAX_LOGICAL); 1123 error = ENXIO; 1124 goto out; 1125 } 1126 1127 /* 1128 * Save logical drive information. 1129 */ 1130 if (bootverbose) { 1131 ciss_printf(sc, "%d logical drive%s\n", 1132 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1133 } 1134 1135 sc->ciss_logical = 1136 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1137 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1138 if (sc->ciss_logical == NULL) { 1139 error = ENXIO; 1140 goto out; 1141 } 1142 1143 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1144 sc->ciss_logical[i] = 1145 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1146 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1147 if (sc->ciss_logical[i] == NULL) { 1148 error = ENXIO; 1149 goto out; 1150 } 1151 1152 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1153 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1154 } 1155 1156 1157 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1158 if (i < ndrives) { 1159 struct ciss_ldrive *ld; 1160 int bus, target; 1161 1162 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1163 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1164 ld = &sc->ciss_logical[bus][target]; 1165 1166 ld->cl_address = cll->lun[i]; 1167 ld->cl_controller = &sc->ciss_controllers[bus]; 1168 if (ciss_identify_logical(sc, ld) != 0) 1169 continue; 1170 /* 1171 * If the drive has had media exchanged, we should bring it online. 1172 */ 1173 if (ld->cl_lstatus->media_exchanged) 1174 ciss_accept_media(sc, ld); 1175 1176 } 1177 } 1178 1179 out: 1180 if (cll != NULL) 1181 free(cll, CISS_MALLOC_CLASS); 1182 return(error); 1183 } 1184 1185 static int 1186 ciss_init_physical(struct ciss_softc *sc) 1187 { 1188 struct ciss_lun_report *cll; 1189 int error = 0, i; 1190 int nphys; 1191 int bus, target; 1192 1193 debug_called(1); 1194 1195 bus = 0; 1196 target = 0; 1197 1198 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1199 CISS_MAX_PHYSICAL); 1200 if (cll == NULL) { 1201 error = ENXIO; 1202 goto out; 1203 } 1204 1205 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1206 1207 if (bootverbose) { 1208 ciss_printf(sc, "%d physical device%s\n", 1209 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1210 } 1211 1212 /* 1213 * Figure out the bus mapping. 1214 * Logical buses include both the local logical bus for local arrays and 1215 * proxy buses for remote arrays. Physical buses are numbered by the 1216 * controller and represent physical buses that hold physical devices. 1217 * We shift these bus numbers so that everything fits into a single flat 1218 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1219 * numbers, and the physical bus numbers are shifted to be above that. 1220 * This results in the various driver arrays being indexed as follows: 1221 * 1222 * ciss_controllers[] - indexed by logical bus 1223 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1224 * being shifted by 32. 1225 * ciss_logical[][] - indexed by logical bus 1226 * ciss_physical[][] - indexed by physical bus 1227 * 1228 * XXX This is getting more and more hackish. CISS really doesn't play 1229 * well with a standard SCSI model; devices are addressed via magic 1230 * cookies, not via b/t/l addresses. Since there is no way to store 1231 * the cookie in the CAM device object, we have to keep these lookup 1232 * tables handy so that the devices can be found quickly at the cost 1233 * of wasting memory and having a convoluted lookup scheme. This 1234 * driver should probably be converted to block interface. 1235 */ 1236 /* 1237 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1238 * controller. A proxy controller is another physical controller 1239 * behind the primary PCI controller. We need to know about this 1240 * so that BMIC commands can be properly targeted. There can be 1241 * proxy controllers attached to a single PCI controller, so 1242 * find the highest numbered one so the array can be properly 1243 * sized. 1244 */ 1245 sc->ciss_max_logical_bus = 1; 1246 for (i = 0; i < nphys; i++) { 1247 if (cll->lun[i].physical.extra_address == 0) { 1248 bus = cll->lun[i].physical.bus; 1249 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1250 } else { 1251 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1252 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1253 } 1254 } 1255 1256 sc->ciss_controllers = 1257 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1258 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1259 1260 if (sc->ciss_controllers == NULL) { 1261 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1262 error = ENOMEM; 1263 goto out; 1264 } 1265 1266 /* setup a map of controller addresses */ 1267 for (i = 0; i < nphys; i++) { 1268 if (cll->lun[i].physical.extra_address == 0) { 1269 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1270 } 1271 } 1272 1273 sc->ciss_physical = 1274 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1275 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1276 if (sc->ciss_physical == NULL) { 1277 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1278 error = ENOMEM; 1279 goto out; 1280 } 1281 1282 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1283 sc->ciss_physical[i] = 1284 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1285 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1286 if (sc->ciss_physical[i] == NULL) { 1287 ciss_printf(sc, "Could not allocate memory for target map\n"); 1288 error = ENOMEM; 1289 goto out; 1290 } 1291 } 1292 1293 ciss_filter_physical(sc, cll); 1294 1295 out: 1296 if (cll != NULL) 1297 free(cll, CISS_MALLOC_CLASS); 1298 1299 return(error); 1300 } 1301 1302 static int 1303 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1304 { 1305 u_int32_t ea; 1306 int i, nphys; 1307 int bus, target; 1308 1309 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1310 for (i = 0; i < nphys; i++) { 1311 if (cll->lun[i].physical.extra_address == 0) 1312 continue; 1313 1314 /* 1315 * Filter out devices that we don't want. Level 3 LUNs could 1316 * probably be supported, but the docs don't give enough of a 1317 * hint to know how. 1318 * 1319 * The mode field of the physical address is likely set to have 1320 * hard disks masked out. Honor it unless the user has overridden 1321 * us with the tunable. We also munge the inquiry data for these 1322 * disks so that they only show up as passthrough devices. Keeping 1323 * them visible in this fashion is useful for doing things like 1324 * flashing firmware. 1325 */ 1326 ea = cll->lun[i].physical.extra_address; 1327 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1328 (CISS_EXTRA_MODE2(ea) == 0x3)) 1329 continue; 1330 if ((ciss_expose_hidden_physical == 0) && 1331 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1332 continue; 1333 1334 /* 1335 * Note: CISS firmware numbers physical busses starting at '1', not 1336 * '0'. This numbering is internal to the firmware and is only 1337 * used as a hint here. 1338 */ 1339 bus = CISS_EXTRA_BUS2(ea) - 1; 1340 target = CISS_EXTRA_TARGET2(ea); 1341 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1342 sc->ciss_physical[bus][target].cp_online = 1; 1343 } 1344 1345 return (0); 1346 } 1347 1348 static int 1349 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1350 { 1351 struct ciss_request *cr; 1352 struct ciss_command *cc; 1353 struct scsi_inquiry *inq; 1354 int error; 1355 int command_status; 1356 1357 cr = NULL; 1358 1359 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1360 1361 if ((error = ciss_get_request(sc, &cr)) != 0) 1362 goto out; 1363 1364 cc = CISS_FIND_COMMAND(cr); 1365 cr->cr_data = &ld->cl_geometry; 1366 cr->cr_length = sizeof(ld->cl_geometry); 1367 cr->cr_flags = CISS_REQ_DATAIN; 1368 1369 cc->header.address = ld->cl_address; 1370 cc->cdb.cdb_length = 6; 1371 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1372 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1373 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1374 cc->cdb.timeout = 30; 1375 1376 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1377 inq->opcode = INQUIRY; 1378 inq->byte2 = SI_EVPD; 1379 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1380 inq->length = sizeof(ld->cl_geometry); 1381 1382 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1383 ciss_printf(sc, "error getting geometry (%d)\n", error); 1384 goto out; 1385 } 1386 1387 ciss_report_request(cr, &command_status, NULL); 1388 switch(command_status) { 1389 case CISS_CMD_STATUS_SUCCESS: 1390 case CISS_CMD_STATUS_DATA_UNDERRUN: 1391 break; 1392 case CISS_CMD_STATUS_DATA_OVERRUN: 1393 ciss_printf(sc, "WARNING: Data overrun\n"); 1394 break; 1395 default: 1396 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1397 ciss_name_command_status(command_status)); 1398 break; 1399 } 1400 1401 out: 1402 if (cr != NULL) 1403 ciss_release_request(cr); 1404 return(error); 1405 } 1406 /************************************************************************ 1407 * Identify a logical drive, initialise state related to it. 1408 */ 1409 static int 1410 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1411 { 1412 struct ciss_request *cr; 1413 struct ciss_command *cc; 1414 struct ciss_bmic_cdb *cbc; 1415 int error, command_status; 1416 1417 debug_called(1); 1418 1419 cr = NULL; 1420 1421 /* 1422 * Build a BMIC request to fetch the drive ID. 1423 */ 1424 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1425 (void **)&ld->cl_ldrive, 1426 sizeof(*ld->cl_ldrive))) != 0) 1427 goto out; 1428 cc = CISS_FIND_COMMAND(cr); 1429 cc->header.address = *ld->cl_controller; /* target controller */ 1430 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1431 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1432 1433 /* 1434 * Submit the request and wait for it to complete. 1435 */ 1436 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1437 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1438 goto out; 1439 } 1440 1441 /* 1442 * Check response. 1443 */ 1444 ciss_report_request(cr, &command_status, NULL); 1445 switch(command_status) { 1446 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1447 break; 1448 case CISS_CMD_STATUS_DATA_UNDERRUN: 1449 case CISS_CMD_STATUS_DATA_OVERRUN: 1450 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1451 default: 1452 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1453 ciss_name_command_status(command_status)); 1454 error = EIO; 1455 goto out; 1456 } 1457 ciss_release_request(cr); 1458 cr = NULL; 1459 1460 /* 1461 * Build a CISS BMIC command to get the logical drive status. 1462 */ 1463 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1464 goto out; 1465 1466 /* 1467 * Get the logical drive geometry. 1468 */ 1469 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1470 goto out; 1471 1472 /* 1473 * Print the drive's basic characteristics. 1474 */ 1475 if (bootverbose) { 1476 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1477 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1478 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1479 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1480 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1481 ld->cl_ldrive->block_size)); 1482 1483 ciss_print_ldrive(sc, ld); 1484 } 1485 out: 1486 if (error != 0) { 1487 /* make the drive not-exist */ 1488 ld->cl_status = CISS_LD_NONEXISTENT; 1489 if (ld->cl_ldrive != NULL) { 1490 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1491 ld->cl_ldrive = NULL; 1492 } 1493 if (ld->cl_lstatus != NULL) { 1494 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1495 ld->cl_lstatus = NULL; 1496 } 1497 } 1498 if (cr != NULL) 1499 ciss_release_request(cr); 1500 1501 return(error); 1502 } 1503 1504 /************************************************************************ 1505 * Get status for a logical drive. 1506 * 1507 * XXX should we also do this in response to Test Unit Ready? 1508 */ 1509 static int 1510 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1511 { 1512 struct ciss_request *cr; 1513 struct ciss_command *cc; 1514 struct ciss_bmic_cdb *cbc; 1515 int error, command_status; 1516 1517 /* 1518 * Build a CISS BMIC command to get the logical drive status. 1519 */ 1520 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1521 (void **)&ld->cl_lstatus, 1522 sizeof(*ld->cl_lstatus))) != 0) 1523 goto out; 1524 cc = CISS_FIND_COMMAND(cr); 1525 cc->header.address = *ld->cl_controller; /* target controller */ 1526 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1527 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1528 1529 /* 1530 * Submit the request and wait for it to complete. 1531 */ 1532 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1533 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1534 goto out; 1535 } 1536 1537 /* 1538 * Check response. 1539 */ 1540 ciss_report_request(cr, &command_status, NULL); 1541 switch(command_status) { 1542 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1543 break; 1544 case CISS_CMD_STATUS_DATA_UNDERRUN: 1545 case CISS_CMD_STATUS_DATA_OVERRUN: 1546 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1547 default: 1548 ciss_printf(sc, "error reading logical drive status (%s)\n", 1549 ciss_name_command_status(command_status)); 1550 error = EIO; 1551 goto out; 1552 } 1553 1554 /* 1555 * Set the drive's summary status based on the returned status. 1556 * 1557 * XXX testing shows that a failed JBOD drive comes back at next 1558 * boot in "queued for expansion" mode. WTF? 1559 */ 1560 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1561 1562 out: 1563 if (cr != NULL) 1564 ciss_release_request(cr); 1565 return(error); 1566 } 1567 1568 /************************************************************************ 1569 * Notify the adapter of a config update. 1570 */ 1571 static int 1572 ciss_update_config(struct ciss_softc *sc) 1573 { 1574 int i; 1575 1576 debug_called(1); 1577 1578 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1579 for (i = 0; i < 1000; i++) { 1580 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1581 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1582 return(0); 1583 } 1584 DELAY(1000); 1585 } 1586 return(1); 1587 } 1588 1589 /************************************************************************ 1590 * Accept new media into a logical drive. 1591 * 1592 * XXX The drive has previously been offline; it would be good if we 1593 * could make sure it's not open right now. 1594 */ 1595 static int 1596 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1597 { 1598 struct ciss_request *cr; 1599 struct ciss_command *cc; 1600 struct ciss_bmic_cdb *cbc; 1601 int command_status; 1602 int error = 0, ldrive; 1603 1604 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1605 1606 debug(0, "bringing logical drive %d back online"); 1607 1608 /* 1609 * Build a CISS BMIC command to bring the drive back online. 1610 */ 1611 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1612 NULL, 0)) != 0) 1613 goto out; 1614 cc = CISS_FIND_COMMAND(cr); 1615 cc->header.address = *ld->cl_controller; /* target controller */ 1616 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1617 cbc->log_drive = ldrive; 1618 1619 /* 1620 * Submit the request and wait for it to complete. 1621 */ 1622 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1623 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1624 goto out; 1625 } 1626 1627 /* 1628 * Check response. 1629 */ 1630 ciss_report_request(cr, &command_status, NULL); 1631 switch(command_status) { 1632 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1633 /* we should get a logical drive status changed event here */ 1634 break; 1635 default: 1636 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1637 ciss_name_command_status(command_status)); 1638 break; 1639 } 1640 1641 out: 1642 if (cr != NULL) 1643 ciss_release_request(cr); 1644 return(error); 1645 } 1646 1647 /************************************************************************ 1648 * Release adapter resources. 1649 */ 1650 static void 1651 ciss_free(struct ciss_softc *sc) 1652 { 1653 struct ciss_request *cr; 1654 int i, j; 1655 1656 debug_called(1); 1657 1658 /* we're going away */ 1659 sc->ciss_flags |= CISS_FLAG_ABORTING; 1660 1661 /* terminate the periodic heartbeat routine */ 1662 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1663 1664 /* cancel the Event Notify chain */ 1665 ciss_notify_abort(sc); 1666 1667 ciss_kill_notify_thread(sc); 1668 1669 /* remove the control device */ 1670 if (sc->ciss_dev_t != NULL) 1671 destroy_dev(sc->ciss_dev_t); 1672 1673 /* free the controller data */ 1674 if (sc->ciss_id != NULL) 1675 free(sc->ciss_id, CISS_MALLOC_CLASS); 1676 1677 /* release I/O resources */ 1678 if (sc->ciss_regs_resource != NULL) 1679 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1680 sc->ciss_regs_rid, sc->ciss_regs_resource); 1681 if (sc->ciss_cfg_resource != NULL) 1682 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1683 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1684 if (sc->ciss_intr != NULL) 1685 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1686 if (sc->ciss_irq_resource != NULL) 1687 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1688 sc->ciss_irq_rid, sc->ciss_irq_resource); 1689 1690 /* destroy DMA tags */ 1691 if (sc->ciss_parent_dmat) 1692 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1693 1694 while ((cr = ciss_dequeue_free(sc)) != NULL) 1695 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1696 if (sc->ciss_buffer_dmat) 1697 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1698 1699 /* destroy command memory and DMA tag */ 1700 if (sc->ciss_command != NULL) { 1701 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1702 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1703 } 1704 if (sc->ciss_command_dmat) 1705 bus_dma_tag_destroy(sc->ciss_command_dmat); 1706 1707 /* disconnect from CAM */ 1708 if (sc->ciss_cam_sim) { 1709 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1710 if (sc->ciss_cam_sim[i]) { 1711 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1712 cam_sim_free(sc->ciss_cam_sim[i], 0); 1713 } 1714 } 1715 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1716 CISS_PHYSICAL_BASE; i++) { 1717 if (sc->ciss_cam_sim[i]) { 1718 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1719 cam_sim_free(sc->ciss_cam_sim[i], 0); 1720 } 1721 } 1722 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1723 } 1724 if (sc->ciss_cam_devq) 1725 cam_simq_free(sc->ciss_cam_devq); 1726 1727 if (sc->ciss_logical) { 1728 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1729 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1730 if (sc->ciss_logical[i][j].cl_ldrive) 1731 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1732 if (sc->ciss_logical[i][j].cl_lstatus) 1733 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1734 } 1735 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1736 } 1737 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1738 } 1739 1740 if (sc->ciss_physical) { 1741 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1742 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1743 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1744 } 1745 1746 if (sc->ciss_controllers) 1747 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1748 } 1749 1750 /************************************************************************ 1751 * Give a command to the adapter. 1752 * 1753 * Note that this uses the simple transport layer directly. If we 1754 * want to add support for other layers, we'll need a switch of some 1755 * sort. 1756 * 1757 * Note that the simple transport layer has no way of refusing a 1758 * command; we only have as many request structures as the adapter 1759 * supports commands, so we don't have to check (this presumes that 1760 * the adapter can handle commands as fast as we throw them at it). 1761 */ 1762 static int 1763 ciss_start(struct ciss_request *cr) 1764 { 1765 struct ciss_command *cc; /* XXX debugging only */ 1766 int error; 1767 1768 cc = CISS_FIND_COMMAND(cr); 1769 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1770 1771 /* 1772 * Map the request's data. 1773 */ 1774 if ((error = ciss_map_request(cr))) 1775 return(error); 1776 1777 #if 0 1778 ciss_print_request(cr); 1779 #endif 1780 1781 return(0); 1782 } 1783 1784 /************************************************************************ 1785 * Fetch completed request(s) from the adapter, queue them for 1786 * completion handling. 1787 * 1788 * Note that this uses the simple transport layer directly. If we 1789 * want to add support for other layers, we'll need a switch of some 1790 * sort. 1791 * 1792 * Note that the simple transport mechanism does not require any 1793 * reentrancy protection; the OPQ read is atomic. If there is a 1794 * chance of a race with something else that might move the request 1795 * off the busy list, then we will have to lock against that 1796 * (eg. timeouts, etc.) 1797 */ 1798 static void 1799 ciss_done(struct ciss_softc *sc) 1800 { 1801 struct ciss_request *cr; 1802 struct ciss_command *cc; 1803 u_int32_t tag, index; 1804 int complete; 1805 1806 debug_called(3); 1807 1808 /* 1809 * Loop quickly taking requests from the adapter and moving them 1810 * from the busy queue to the completed queue. 1811 */ 1812 complete = 0; 1813 for (;;) { 1814 1815 /* see if the OPQ contains anything */ 1816 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1817 break; 1818 1819 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1820 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1821 break; 1822 index = tag >> 2; 1823 debug(2, "completed command %d%s", index, 1824 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1825 if (index >= sc->ciss_max_requests) { 1826 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1827 continue; 1828 } 1829 cr = &(sc->ciss_request[index]); 1830 cc = CISS_FIND_COMMAND(cr); 1831 cc->header.host_tag = tag; /* not updated by adapter */ 1832 if (ciss_remove_busy(cr)) { 1833 /* assume this is garbage out of the adapter */ 1834 ciss_printf(sc, "completed nonbusy request %d\n", index); 1835 } else { 1836 ciss_enqueue_complete(cr); 1837 } 1838 complete = 1; 1839 } 1840 1841 /* 1842 * Invoke completion processing. If we can defer this out of 1843 * interrupt context, that'd be good. 1844 */ 1845 if (complete) 1846 ciss_complete(sc); 1847 } 1848 1849 /************************************************************************ 1850 * Take an interrupt from the adapter. 1851 */ 1852 static void 1853 ciss_intr(void *arg) 1854 { 1855 struct ciss_softc *sc = (struct ciss_softc *)arg; 1856 1857 /* 1858 * The only interrupt we recognise indicates that there are 1859 * entries in the outbound post queue. 1860 */ 1861 ciss_done(sc); 1862 } 1863 1864 /************************************************************************ 1865 * Process completed requests. 1866 * 1867 * Requests can be completed in three fashions: 1868 * 1869 * - by invoking a callback function (cr_complete is non-null) 1870 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1871 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1872 */ 1873 static void 1874 ciss_complete(struct ciss_softc *sc) 1875 { 1876 struct ciss_request *cr; 1877 1878 debug_called(2); 1879 1880 /* 1881 * Loop taking requests off the completed queue and performing 1882 * completion processing on them. 1883 */ 1884 for (;;) { 1885 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1886 break; 1887 ciss_unmap_request(cr); 1888 1889 /* 1890 * If the request has a callback, invoke it. 1891 */ 1892 if (cr->cr_complete != NULL) { 1893 cr->cr_complete(cr); 1894 continue; 1895 } 1896 1897 /* 1898 * If someone is sleeping on this request, wake them up. 1899 */ 1900 if (cr->cr_flags & CISS_REQ_SLEEP) { 1901 cr->cr_flags &= ~CISS_REQ_SLEEP; 1902 wakeup(cr); 1903 continue; 1904 } 1905 1906 /* 1907 * If someone is polling this request for completion, signal. 1908 */ 1909 if (cr->cr_flags & CISS_REQ_POLL) { 1910 cr->cr_flags &= ~CISS_REQ_POLL; 1911 continue; 1912 } 1913 1914 /* 1915 * Give up and throw the request back on the free queue. This 1916 * should never happen; resources will probably be lost. 1917 */ 1918 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1919 ciss_enqueue_free(cr); 1920 } 1921 } 1922 1923 /************************************************************************ 1924 * Report on the completion status of a request, and pass back SCSI 1925 * and command status values. 1926 */ 1927 static int 1928 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1929 { 1930 struct ciss_command *cc; 1931 struct ciss_error_info *ce; 1932 1933 debug_called(2); 1934 1935 cc = CISS_FIND_COMMAND(cr); 1936 ce = (struct ciss_error_info *)&(cc->sg[0]); 1937 1938 /* 1939 * We don't consider data under/overrun an error for the Report 1940 * Logical/Physical LUNs commands. 1941 */ 1942 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1943 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 1944 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 1945 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1946 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 1947 (cc->cdb.cdb[0] == INQUIRY))) { 1948 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1949 debug(2, "ignoring irrelevant under/overrun error"); 1950 } 1951 1952 /* 1953 * Check the command's error bit, if clear, there's no status and 1954 * everything is OK. 1955 */ 1956 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1957 if (scsi_status != NULL) 1958 *scsi_status = SCSI_STATUS_OK; 1959 if (command_status != NULL) 1960 *command_status = CISS_CMD_STATUS_SUCCESS; 1961 return(0); 1962 } else { 1963 if (command_status != NULL) 1964 *command_status = ce->command_status; 1965 if (scsi_status != NULL) { 1966 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1967 *scsi_status = ce->scsi_status; 1968 } else { 1969 *scsi_status = -1; 1970 } 1971 } 1972 if (bootverbose) 1973 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1974 ce->command_status, ciss_name_command_status(ce->command_status), 1975 ce->scsi_status); 1976 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1977 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1978 ce->additional_error_info.invalid_command.offense_size, 1979 ce->additional_error_info.invalid_command.offense_offset, 1980 ce->additional_error_info.invalid_command.offense_value); 1981 } 1982 } 1983 #if 0 1984 ciss_print_request(cr); 1985 #endif 1986 return(1); 1987 } 1988 1989 /************************************************************************ 1990 * Issue a request and don't return until it's completed. 1991 * 1992 * Depending on adapter status, we may poll or sleep waiting for 1993 * completion. 1994 */ 1995 static int 1996 ciss_synch_request(struct ciss_request *cr, int timeout) 1997 { 1998 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1999 return(ciss_wait_request(cr, timeout)); 2000 } else { 2001 return(ciss_poll_request(cr, timeout)); 2002 } 2003 } 2004 2005 /************************************************************************ 2006 * Issue a request and poll for completion. 2007 * 2008 * Timeout in milliseconds. 2009 */ 2010 static int 2011 ciss_poll_request(struct ciss_request *cr, int timeout) 2012 { 2013 int error; 2014 2015 debug_called(2); 2016 2017 cr->cr_flags |= CISS_REQ_POLL; 2018 if ((error = ciss_start(cr)) != 0) 2019 return(error); 2020 2021 do { 2022 ciss_done(cr->cr_sc); 2023 if (!(cr->cr_flags & CISS_REQ_POLL)) 2024 return(0); 2025 DELAY(1000); 2026 } while (timeout-- >= 0); 2027 return(EWOULDBLOCK); 2028 } 2029 2030 /************************************************************************ 2031 * Issue a request and sleep waiting for completion. 2032 * 2033 * Timeout in milliseconds. Note that a spurious wakeup will reset 2034 * the timeout. 2035 */ 2036 static int 2037 ciss_wait_request(struct ciss_request *cr, int timeout) 2038 { 2039 int s, error; 2040 2041 debug_called(2); 2042 2043 cr->cr_flags |= CISS_REQ_SLEEP; 2044 if ((error = ciss_start(cr)) != 0) 2045 return(error); 2046 2047 s = splcam(); 2048 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2049 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2050 } 2051 splx(s); 2052 return(error); 2053 } 2054 2055 #if 0 2056 /************************************************************************ 2057 * Abort a request. Note that a potential exists here to race the 2058 * request being completed; the caller must deal with this. 2059 */ 2060 static int 2061 ciss_abort_request(struct ciss_request *ar) 2062 { 2063 struct ciss_request *cr; 2064 struct ciss_command *cc; 2065 struct ciss_message_cdb *cmc; 2066 int error; 2067 2068 debug_called(1); 2069 2070 /* get a request */ 2071 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2072 return(error); 2073 2074 /* build the abort command */ 2075 cc = CISS_FIND_COMMAND(cr); 2076 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2077 cc->header.address.physical.target = 0; 2078 cc->header.address.physical.bus = 0; 2079 cc->cdb.cdb_length = sizeof(*cmc); 2080 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2081 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2082 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2083 cc->cdb.timeout = 30; 2084 2085 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2086 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2087 cmc->type = CISS_MESSAGE_ABORT_TASK; 2088 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2089 2090 /* 2091 * Send the request and wait for a response. If we believe we 2092 * aborted the request OK, clear the flag that indicates it's 2093 * running. 2094 */ 2095 error = ciss_synch_request(cr, 35 * 1000); 2096 if (!error) 2097 error = ciss_report_request(cr, NULL, NULL); 2098 ciss_release_request(cr); 2099 2100 return(error); 2101 } 2102 #endif 2103 2104 2105 /************************************************************************ 2106 * Fetch and initialise a request 2107 */ 2108 static int 2109 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2110 { 2111 struct ciss_request *cr; 2112 2113 debug_called(2); 2114 2115 /* 2116 * Get a request and clean it up. 2117 */ 2118 if ((cr = ciss_dequeue_free(sc)) == NULL) 2119 return(ENOMEM); 2120 2121 cr->cr_data = NULL; 2122 cr->cr_flags = 0; 2123 cr->cr_complete = NULL; 2124 cr->cr_private = NULL; 2125 2126 ciss_preen_command(cr); 2127 *crp = cr; 2128 return(0); 2129 } 2130 2131 static void 2132 ciss_preen_command(struct ciss_request *cr) 2133 { 2134 struct ciss_command *cc; 2135 u_int32_t cmdphys; 2136 2137 /* 2138 * Clean up the command structure. 2139 * 2140 * Note that we set up the error_info structure here, since the 2141 * length can be overwritten by any command. 2142 */ 2143 cc = CISS_FIND_COMMAND(cr); 2144 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2145 cc->header.sg_total = 0; 2146 cc->header.host_tag = cr->cr_tag << 2; 2147 cc->header.host_tag_zeroes = 0; 2148 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2149 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2150 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2151 } 2152 2153 /************************************************************************ 2154 * Release a request to the free list. 2155 */ 2156 static void 2157 ciss_release_request(struct ciss_request *cr) 2158 { 2159 struct ciss_softc *sc; 2160 2161 debug_called(2); 2162 2163 sc = cr->cr_sc; 2164 2165 /* release the request to the free queue */ 2166 ciss_requeue_free(cr); 2167 } 2168 2169 /************************************************************************ 2170 * Allocate a request that will be used to send a BMIC command. Do some 2171 * of the common setup here to avoid duplicating it everywhere else. 2172 */ 2173 static int 2174 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2175 int opcode, void **bufp, size_t bufsize) 2176 { 2177 struct ciss_request *cr; 2178 struct ciss_command *cc; 2179 struct ciss_bmic_cdb *cbc; 2180 void *buf; 2181 int error; 2182 int dataout; 2183 2184 debug_called(2); 2185 2186 cr = NULL; 2187 buf = NULL; 2188 2189 /* 2190 * Get a request. 2191 */ 2192 if ((error = ciss_get_request(sc, &cr)) != 0) 2193 goto out; 2194 2195 /* 2196 * Allocate data storage if requested, determine the data direction. 2197 */ 2198 dataout = 0; 2199 if ((bufsize > 0) && (bufp != NULL)) { 2200 if (*bufp == NULL) { 2201 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2202 error = ENOMEM; 2203 goto out; 2204 } 2205 } else { 2206 buf = *bufp; 2207 dataout = 1; /* we are given a buffer, so we are writing */ 2208 } 2209 } 2210 2211 /* 2212 * Build a CISS BMIC command to get the logical drive ID. 2213 */ 2214 cr->cr_data = buf; 2215 cr->cr_length = bufsize; 2216 if (!dataout) 2217 cr->cr_flags = CISS_REQ_DATAIN; 2218 2219 cc = CISS_FIND_COMMAND(cr); 2220 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2221 cc->header.address.physical.bus = 0; 2222 cc->header.address.physical.target = 0; 2223 cc->cdb.cdb_length = sizeof(*cbc); 2224 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2225 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2226 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2227 cc->cdb.timeout = 0; 2228 2229 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2230 bzero(cbc, sizeof(*cbc)); 2231 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2232 cbc->bmic_opcode = opcode; 2233 cbc->size = htons((u_int16_t)bufsize); 2234 2235 out: 2236 if (error) { 2237 if (cr != NULL) 2238 ciss_release_request(cr); 2239 } else { 2240 *crp = cr; 2241 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2242 *bufp = buf; 2243 } 2244 return(error); 2245 } 2246 2247 /************************************************************************ 2248 * Handle a command passed in from userspace. 2249 */ 2250 static int 2251 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2252 { 2253 struct ciss_request *cr; 2254 struct ciss_command *cc; 2255 struct ciss_error_info *ce; 2256 int error = 0; 2257 2258 debug_called(1); 2259 2260 cr = NULL; 2261 2262 /* 2263 * Get a request. 2264 */ 2265 if ((error = ciss_get_request(sc, &cr)) != 0) 2266 goto out; 2267 cc = CISS_FIND_COMMAND(cr); 2268 2269 /* 2270 * Allocate an in-kernel databuffer if required, copy in user data. 2271 */ 2272 cr->cr_length = ioc->buf_size; 2273 if (ioc->buf_size > 0) { 2274 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2275 error = ENOMEM; 2276 goto out; 2277 } 2278 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2279 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2280 goto out; 2281 } 2282 } 2283 2284 /* 2285 * Build the request based on the user command. 2286 */ 2287 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2288 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2289 2290 /* XXX anything else to populate here? */ 2291 2292 /* 2293 * Run the command. 2294 */ 2295 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2296 debug(0, "request failed - %d", error); 2297 goto out; 2298 } 2299 2300 /* 2301 * Check to see if the command succeeded. 2302 */ 2303 ce = (struct ciss_error_info *)&(cc->sg[0]); 2304 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2305 bzero(ce, sizeof(*ce)); 2306 2307 /* 2308 * Copy the results back to the user. 2309 */ 2310 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2311 if ((ioc->buf_size > 0) && 2312 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2313 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2314 goto out; 2315 } 2316 2317 /* done OK */ 2318 error = 0; 2319 2320 out: 2321 if ((cr != NULL) && (cr->cr_data != NULL)) 2322 free(cr->cr_data, CISS_MALLOC_CLASS); 2323 if (cr != NULL) 2324 ciss_release_request(cr); 2325 return(error); 2326 } 2327 2328 /************************************************************************ 2329 * Map a request into bus-visible space, initialise the scatter/gather 2330 * list. 2331 */ 2332 static int 2333 ciss_map_request(struct ciss_request *cr) 2334 { 2335 struct ciss_softc *sc; 2336 int error = 0; 2337 2338 debug_called(2); 2339 2340 sc = cr->cr_sc; 2341 2342 /* check that mapping is necessary */ 2343 if (cr->cr_flags & CISS_REQ_MAPPED) 2344 return(0); 2345 2346 cr->cr_flags |= CISS_REQ_MAPPED; 2347 2348 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2349 BUS_DMASYNC_PREWRITE); 2350 2351 if (cr->cr_data != NULL) { 2352 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2353 cr->cr_data, cr->cr_length, 2354 ciss_request_map_helper, cr, 0); 2355 if (error != 0) 2356 return (error); 2357 } else { 2358 /* 2359 * Post the command to the adapter. 2360 */ 2361 ciss_enqueue_busy(cr); 2362 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2363 } 2364 2365 return(0); 2366 } 2367 2368 static void 2369 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2370 { 2371 struct ciss_command *cc; 2372 struct ciss_request *cr; 2373 struct ciss_softc *sc; 2374 int i; 2375 2376 debug_called(2); 2377 2378 cr = (struct ciss_request *)arg; 2379 sc = cr->cr_sc; 2380 cc = CISS_FIND_COMMAND(cr); 2381 2382 for (i = 0; i < nseg; i++) { 2383 cc->sg[i].address = segs[i].ds_addr; 2384 cc->sg[i].length = segs[i].ds_len; 2385 cc->sg[i].extension = 0; 2386 } 2387 /* we leave the s/g table entirely within the command */ 2388 cc->header.sg_in_list = nseg; 2389 cc->header.sg_total = nseg; 2390 2391 if (cr->cr_flags & CISS_REQ_DATAIN) 2392 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2393 if (cr->cr_flags & CISS_REQ_DATAOUT) 2394 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2395 2396 /* 2397 * Post the command to the adapter. 2398 */ 2399 ciss_enqueue_busy(cr); 2400 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2401 } 2402 2403 /************************************************************************ 2404 * Unmap a request from bus-visible space. 2405 */ 2406 static void 2407 ciss_unmap_request(struct ciss_request *cr) 2408 { 2409 struct ciss_softc *sc; 2410 2411 debug_called(2); 2412 2413 sc = cr->cr_sc; 2414 2415 /* check that unmapping is necessary */ 2416 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2417 return; 2418 2419 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2420 BUS_DMASYNC_POSTWRITE); 2421 2422 if (cr->cr_data == NULL) 2423 goto out; 2424 2425 if (cr->cr_flags & CISS_REQ_DATAIN) 2426 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2427 if (cr->cr_flags & CISS_REQ_DATAOUT) 2428 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2429 2430 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2431 out: 2432 cr->cr_flags &= ~CISS_REQ_MAPPED; 2433 } 2434 2435 /************************************************************************ 2436 * Attach the driver to CAM. 2437 * 2438 * We put all the logical drives on a single SCSI bus. 2439 */ 2440 static int 2441 ciss_cam_init(struct ciss_softc *sc) 2442 { 2443 int i, maxbus; 2444 2445 debug_called(1); 2446 2447 /* 2448 * Allocate a devq. We can reuse this for the masked physical 2449 * devices if we decide to export these as well. 2450 */ 2451 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2452 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2453 return(ENOMEM); 2454 } 2455 2456 /* 2457 * Create a SIM. 2458 * 2459 * This naturally wastes a bit of memory. The alternative is to allocate 2460 * and register each bus as it is found, and then track them on a linked 2461 * list. Unfortunately, the driver has a few places where it needs to 2462 * look up the SIM based solely on bus number, and it's unclear whether 2463 * a list traversal would work for these situations. 2464 */ 2465 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2466 CISS_PHYSICAL_BASE); 2467 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2468 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2469 if (sc->ciss_cam_sim == NULL) { 2470 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2471 return(ENOMEM); 2472 } 2473 2474 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2475 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2476 "ciss", sc, 2477 device_get_unit(sc->ciss_dev), 2478 sc->ciss_max_requests - 2, 2479 1, 2480 sc->ciss_cam_devq)) == NULL) { 2481 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2482 return(ENOMEM); 2483 } 2484 2485 /* 2486 * Register bus with this SIM. 2487 */ 2488 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2489 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2490 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2491 return (ENXIO); 2492 } 2493 } 2494 } 2495 2496 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2497 CISS_PHYSICAL_BASE; i++) { 2498 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2499 "ciss", sc, 2500 device_get_unit(sc->ciss_dev), 2501 sc->ciss_max_requests - 2, 2502 1, 2503 sc->ciss_cam_devq)) == NULL) { 2504 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2505 return (ENOMEM); 2506 } 2507 2508 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2509 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2510 return (ENXIO); 2511 } 2512 } 2513 2514 /* 2515 * Initiate a rescan of the bus. 2516 */ 2517 ciss_cam_rescan_all(sc); 2518 2519 return(0); 2520 } 2521 2522 /************************************************************************ 2523 * Initiate a rescan of the 'logical devices' SIM 2524 */ 2525 static void 2526 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2527 { 2528 struct cam_path *path; 2529 union ccb *ccb; 2530 2531 debug_called(1); 2532 2533 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2534 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2535 return; 2536 } 2537 2538 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2539 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2540 ciss_printf(sc, "rescan failed (can't create path)\n"); 2541 free(ccb, M_TEMP); 2542 return; 2543 } 2544 2545 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2546 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2547 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2548 ccb->crcn.flags = CAM_FLAG_NONE; 2549 xpt_action(ccb); 2550 2551 /* scan is now in progress */ 2552 } 2553 2554 static void 2555 ciss_cam_rescan_all(struct ciss_softc *sc) 2556 { 2557 int i; 2558 2559 /* Rescan the logical buses */ 2560 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2561 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2562 /* Rescan the physical buses */ 2563 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2564 CISS_PHYSICAL_BASE; i++) 2565 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2566 } 2567 2568 static void 2569 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2570 { 2571 xpt_free_path(ccb->ccb_h.path); 2572 free(ccb, M_TEMP); 2573 } 2574 2575 /************************************************************************ 2576 * Handle requests coming from CAM 2577 */ 2578 static void 2579 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2580 { 2581 struct ciss_softc *sc; 2582 struct ccb_scsiio *csio; 2583 int bus, target; 2584 int physical; 2585 2586 sc = cam_sim_softc(sim); 2587 bus = cam_sim_bus(sim); 2588 csio = (struct ccb_scsiio *)&ccb->csio; 2589 target = csio->ccb_h.target_id; 2590 physical = CISS_IS_PHYSICAL(bus); 2591 2592 switch (ccb->ccb_h.func_code) { 2593 2594 /* perform SCSI I/O */ 2595 case XPT_SCSI_IO: 2596 if (!ciss_cam_action_io(sim, csio)) 2597 return; 2598 break; 2599 2600 /* perform geometry calculations */ 2601 case XPT_CALC_GEOMETRY: 2602 { 2603 struct ccb_calc_geometry *ccg = &ccb->ccg; 2604 struct ciss_ldrive *ld; 2605 2606 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2607 2608 ld = NULL; 2609 if (!physical) 2610 ld = &sc->ciss_logical[bus][target]; 2611 2612 /* 2613 * Use the cached geometry settings unless the fault tolerance 2614 * is invalid. 2615 */ 2616 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2617 u_int32_t secs_per_cylinder; 2618 2619 ccg->heads = 255; 2620 ccg->secs_per_track = 32; 2621 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2622 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2623 } else { 2624 ccg->heads = ld->cl_geometry.heads; 2625 ccg->secs_per_track = ld->cl_geometry.sectors; 2626 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2627 } 2628 ccb->ccb_h.status = CAM_REQ_CMP; 2629 break; 2630 } 2631 2632 /* handle path attribute inquiry */ 2633 case XPT_PATH_INQ: 2634 { 2635 struct ccb_pathinq *cpi = &ccb->cpi; 2636 2637 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2638 2639 cpi->version_num = 1; 2640 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2641 cpi->target_sprt = 0; 2642 cpi->hba_misc = 0; 2643 cpi->max_target = CISS_MAX_LOGICAL; 2644 cpi->max_lun = 0; /* 'logical drive' channel only */ 2645 cpi->initiator_id = CISS_MAX_LOGICAL; 2646 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2647 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2648 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2649 cpi->unit_number = cam_sim_unit(sim); 2650 cpi->bus_id = cam_sim_bus(sim); 2651 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2652 ccb->ccb_h.status = CAM_REQ_CMP; 2653 break; 2654 } 2655 2656 case XPT_GET_TRAN_SETTINGS: 2657 { 2658 struct ccb_trans_settings *cts = &ccb->cts; 2659 int bus, target; 2660 2661 bus = cam_sim_bus(sim); 2662 target = cts->ccb_h.target_id; 2663 2664 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2665 cts->valid = 0; 2666 2667 /* disconnect always OK */ 2668 cts->flags |= CCB_TRANS_DISC_ENB; 2669 cts->valid |= CCB_TRANS_DISC_VALID; 2670 2671 cts->ccb_h.status = CAM_REQ_CMP; 2672 break; 2673 } 2674 2675 default: /* we can't do this */ 2676 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2677 ccb->ccb_h.status = CAM_REQ_INVALID; 2678 break; 2679 } 2680 2681 xpt_done(ccb); 2682 } 2683 2684 /************************************************************************ 2685 * Handle a CAM SCSI I/O request. 2686 */ 2687 static int 2688 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2689 { 2690 struct ciss_softc *sc; 2691 int bus, target; 2692 struct ciss_request *cr; 2693 struct ciss_command *cc; 2694 int error; 2695 2696 sc = cam_sim_softc(sim); 2697 bus = cam_sim_bus(sim); 2698 target = csio->ccb_h.target_id; 2699 2700 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2701 2702 /* firmware does not support commands > 10 bytes */ 2703 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2704 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2705 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2706 } 2707 2708 /* check that the CDB pointer is not to a physical address */ 2709 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2710 debug(3, " CDB pointer is to physical address"); 2711 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2712 } 2713 2714 /* if there is data transfer, it must be to/from a virtual address */ 2715 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2716 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2717 debug(3, " data pointer is to physical address"); 2718 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2719 } 2720 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2721 debug(3, " data has premature s/g setup"); 2722 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2723 } 2724 } 2725 2726 /* abandon aborted ccbs or those that have failed validation */ 2727 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2728 debug(3, "abandoning CCB due to abort/validation failure"); 2729 return(EINVAL); 2730 } 2731 2732 /* handle emulation of some SCSI commands ourself */ 2733 if (ciss_cam_emulate(sc, csio)) 2734 return(0); 2735 2736 /* 2737 * Get a request to manage this command. If we can't, return the 2738 * ccb, freeze the queue and flag so that we unfreeze it when a 2739 * request completes. 2740 */ 2741 if ((error = ciss_get_request(sc, &cr)) != 0) { 2742 xpt_freeze_simq(sim, 1); 2743 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2744 return(error); 2745 } 2746 2747 /* 2748 * Build the command. 2749 */ 2750 cc = CISS_FIND_COMMAND(cr); 2751 cr->cr_data = csio->data_ptr; 2752 cr->cr_length = csio->dxfer_len; 2753 cr->cr_complete = ciss_cam_complete; 2754 cr->cr_private = csio; 2755 2756 /* 2757 * Target the right logical volume. 2758 */ 2759 if (CISS_IS_PHYSICAL(bus)) 2760 cc->header.address = 2761 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2762 else 2763 cc->header.address = 2764 sc->ciss_logical[bus][target].cl_address; 2765 cc->cdb.cdb_length = csio->cdb_len; 2766 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2767 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2768 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2769 cr->cr_flags = CISS_REQ_DATAOUT; 2770 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2771 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2772 cr->cr_flags = CISS_REQ_DATAIN; 2773 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2774 } else { 2775 cr->cr_flags = 0; 2776 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2777 } 2778 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2779 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2780 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2781 } else { 2782 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2783 } 2784 2785 /* 2786 * Submit the request to the adapter. 2787 * 2788 * Note that this may fail if we're unable to map the request (and 2789 * if we ever learn a transport layer other than simple, may fail 2790 * if the adapter rejects the command). 2791 */ 2792 if ((error = ciss_start(cr)) != 0) { 2793 xpt_freeze_simq(sim, 1); 2794 if (error == EINPROGRESS) { 2795 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2796 error = 0; 2797 } else { 2798 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2799 ciss_release_request(cr); 2800 } 2801 return(error); 2802 } 2803 2804 return(0); 2805 } 2806 2807 /************************************************************************ 2808 * Emulate SCSI commands the adapter doesn't handle as we might like. 2809 */ 2810 static int 2811 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2812 { 2813 int bus, target; 2814 u_int8_t opcode; 2815 2816 target = csio->ccb_h.target_id; 2817 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2818 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2819 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2820 2821 if (CISS_IS_PHYSICAL(bus)) { 2822 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2823 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2824 xpt_done((union ccb *)csio); 2825 return(1); 2826 } else 2827 return(0); 2828 } 2829 2830 /* 2831 * Handle requests for volumes that don't exist or are not online. 2832 * A selection timeout is slightly better than an illegal request. 2833 * Other errors might be better. 2834 */ 2835 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2836 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2837 xpt_done((union ccb *)csio); 2838 return(1); 2839 } 2840 2841 /* if we have to fake Synchronise Cache */ 2842 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2843 /* 2844 * If this is a Synchronise Cache command, typically issued when 2845 * a device is closed, flush the adapter and complete now. 2846 */ 2847 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2848 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2849 ciss_flush_adapter(sc); 2850 csio->ccb_h.status = CAM_REQ_CMP; 2851 xpt_done((union ccb *)csio); 2852 return(1); 2853 } 2854 } 2855 2856 return(0); 2857 } 2858 2859 /************************************************************************ 2860 * Check for possibly-completed commands. 2861 */ 2862 static void 2863 ciss_cam_poll(struct cam_sim *sim) 2864 { 2865 struct ciss_softc *sc = cam_sim_softc(sim); 2866 2867 debug_called(2); 2868 2869 ciss_done(sc); 2870 } 2871 2872 /************************************************************************ 2873 * Handle completion of a command - pass results back through the CCB 2874 */ 2875 static void 2876 ciss_cam_complete(struct ciss_request *cr) 2877 { 2878 struct ciss_softc *sc; 2879 struct ciss_command *cc; 2880 struct ciss_error_info *ce; 2881 struct ccb_scsiio *csio; 2882 int scsi_status; 2883 int command_status; 2884 2885 debug_called(2); 2886 2887 sc = cr->cr_sc; 2888 cc = CISS_FIND_COMMAND(cr); 2889 ce = (struct ciss_error_info *)&(cc->sg[0]); 2890 csio = (struct ccb_scsiio *)cr->cr_private; 2891 2892 /* 2893 * Extract status values from request. 2894 */ 2895 ciss_report_request(cr, &command_status, &scsi_status); 2896 csio->scsi_status = scsi_status; 2897 2898 /* 2899 * Handle specific SCSI status values. 2900 */ 2901 switch(scsi_status) { 2902 /* no status due to adapter error */ 2903 case -1: 2904 debug(0, "adapter error"); 2905 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2906 break; 2907 2908 /* no status due to command completed OK */ 2909 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2910 debug(2, "SCSI_STATUS_OK"); 2911 csio->ccb_h.status = CAM_REQ_CMP; 2912 break; 2913 2914 /* check condition, sense data included */ 2915 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2916 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2917 ce->sense_length, ce->residual_count); 2918 bzero(&csio->sense_data, SSD_FULL_SIZE); 2919 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2920 csio->sense_len = ce->sense_length; 2921 csio->resid = ce->residual_count; 2922 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2923 #ifdef CISS_DEBUG 2924 { 2925 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2926 debug(0, "sense key %x", sns->flags & SSD_KEY); 2927 } 2928 #endif 2929 break; 2930 2931 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2932 debug(0, "SCSI_STATUS_BUSY"); 2933 csio->ccb_h.status = CAM_SCSI_BUSY; 2934 break; 2935 2936 default: 2937 debug(0, "unknown status 0x%x", csio->scsi_status); 2938 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2939 break; 2940 } 2941 2942 /* handle post-command fixup */ 2943 ciss_cam_complete_fixup(sc, csio); 2944 2945 /* tell CAM we're ready for more commands */ 2946 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2947 2948 xpt_done((union ccb *)csio); 2949 ciss_release_request(cr); 2950 } 2951 2952 /******************************************************************************** 2953 * Fix up the result of some commands here. 2954 */ 2955 static void 2956 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2957 { 2958 struct scsi_inquiry_data *inq; 2959 struct ciss_ldrive *cl; 2960 int bus, target; 2961 2962 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2963 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2964 2965 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2966 target = csio->ccb_h.target_id; 2967 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2968 2969 /* 2970 * Don't let hard drives be seen by the DA driver. They will still be 2971 * attached by the PASS driver. 2972 */ 2973 if (CISS_IS_PHYSICAL(bus)) { 2974 if (SID_TYPE(inq) == T_DIRECT) 2975 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2976 return; 2977 } 2978 2979 cl = &sc->ciss_logical[bus][target]; 2980 2981 padstr(inq->vendor, "COMPAQ", 8); 2982 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2983 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2984 } 2985 } 2986 2987 2988 /******************************************************************************** 2989 * Find a peripheral attached at (target) 2990 */ 2991 static struct cam_periph * 2992 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2993 { 2994 struct cam_periph *periph; 2995 struct cam_path *path; 2996 int status; 2997 2998 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2999 target, 0); 3000 if (status == CAM_REQ_CMP) { 3001 periph = cam_periph_find(path, NULL); 3002 xpt_free_path(path); 3003 } else { 3004 periph = NULL; 3005 } 3006 return(periph); 3007 } 3008 3009 /******************************************************************************** 3010 * Name the device at (target) 3011 * 3012 * XXX is this strictly correct? 3013 */ 3014 static int 3015 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3016 { 3017 struct cam_periph *periph; 3018 3019 if (CISS_IS_PHYSICAL(bus)) 3020 return (0); 3021 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3022 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3023 periph->periph_name, periph->unit_number); 3024 return(0); 3025 } 3026 sc->ciss_logical[bus][target].cl_name[0] = 0; 3027 return(ENOENT); 3028 } 3029 3030 /************************************************************************ 3031 * Periodic status monitoring. 3032 */ 3033 static void 3034 ciss_periodic(void *arg) 3035 { 3036 struct ciss_softc *sc; 3037 3038 debug_called(1); 3039 3040 sc = (struct ciss_softc *)arg; 3041 3042 /* 3043 * Check the adapter heartbeat. 3044 */ 3045 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3046 sc->ciss_heart_attack++; 3047 debug(0, "adapter heart attack in progress 0x%x/%d", 3048 sc->ciss_heartbeat, sc->ciss_heart_attack); 3049 if (sc->ciss_heart_attack == 3) { 3050 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3051 /* XXX should reset adapter here */ 3052 } 3053 } else { 3054 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3055 sc->ciss_heart_attack = 0; 3056 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3057 } 3058 3059 /* 3060 * If the notify event request has died for some reason, or has 3061 * not started yet, restart it. 3062 */ 3063 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3064 debug(0, "(re)starting Event Notify chain"); 3065 ciss_notify_event(sc); 3066 } 3067 3068 /* 3069 * Reschedule. 3070 */ 3071 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 3072 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 3073 } 3074 3075 /************************************************************************ 3076 * Request a notification response from the adapter. 3077 * 3078 * If (cr) is NULL, this is the first request of the adapter, so 3079 * reset the adapter's message pointer and start with the oldest 3080 * message available. 3081 */ 3082 static void 3083 ciss_notify_event(struct ciss_softc *sc) 3084 { 3085 struct ciss_request *cr; 3086 struct ciss_command *cc; 3087 struct ciss_notify_cdb *cnc; 3088 int error; 3089 3090 debug_called(1); 3091 3092 cr = sc->ciss_periodic_notify; 3093 3094 /* get a request if we don't already have one */ 3095 if (cr == NULL) { 3096 if ((error = ciss_get_request(sc, &cr)) != 0) { 3097 debug(0, "can't get notify event request"); 3098 goto out; 3099 } 3100 sc->ciss_periodic_notify = cr; 3101 cr->cr_complete = ciss_notify_complete; 3102 debug(1, "acquired request %d", cr->cr_tag); 3103 } 3104 3105 /* 3106 * Get a databuffer if we don't already have one, note that the 3107 * adapter command wants a larger buffer than the actual 3108 * structure. 3109 */ 3110 if (cr->cr_data == NULL) { 3111 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3112 debug(0, "can't get notify event request buffer"); 3113 error = ENOMEM; 3114 goto out; 3115 } 3116 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3117 } 3118 3119 /* re-setup the request's command (since we never release it) XXX overkill*/ 3120 ciss_preen_command(cr); 3121 3122 /* (re)build the notify event command */ 3123 cc = CISS_FIND_COMMAND(cr); 3124 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3125 cc->header.address.physical.bus = 0; 3126 cc->header.address.physical.target = 0; 3127 3128 cc->cdb.cdb_length = sizeof(*cnc); 3129 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3130 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3131 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3132 cc->cdb.timeout = 0; /* no timeout, we hope */ 3133 3134 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3135 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3136 cnc->opcode = CISS_OPCODE_READ; 3137 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3138 cnc->timeout = 0; /* no timeout, we hope */ 3139 cnc->synchronous = 0; 3140 cnc->ordered = 0; 3141 cnc->seek_to_oldest = 0; 3142 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3143 cnc->new_only = 1; 3144 else 3145 cnc->new_only = 0; 3146 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3147 3148 /* submit the request */ 3149 error = ciss_start(cr); 3150 3151 out: 3152 if (error) { 3153 if (cr != NULL) { 3154 if (cr->cr_data != NULL) 3155 free(cr->cr_data, CISS_MALLOC_CLASS); 3156 ciss_release_request(cr); 3157 } 3158 sc->ciss_periodic_notify = NULL; 3159 debug(0, "can't submit notify event request"); 3160 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3161 } else { 3162 debug(1, "notify event submitted"); 3163 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3164 } 3165 } 3166 3167 static void 3168 ciss_notify_complete(struct ciss_request *cr) 3169 { 3170 struct ciss_command *cc; 3171 struct ciss_notify *cn; 3172 struct ciss_softc *sc; 3173 int scsi_status; 3174 int command_status; 3175 debug_called(1); 3176 3177 cc = CISS_FIND_COMMAND(cr); 3178 cn = (struct ciss_notify *)cr->cr_data; 3179 sc = cr->cr_sc; 3180 3181 /* 3182 * Report request results, decode status. 3183 */ 3184 ciss_report_request(cr, &command_status, &scsi_status); 3185 3186 /* 3187 * Abort the chain on a fatal error. 3188 * 3189 * XXX which of these are actually errors? 3190 */ 3191 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3192 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3193 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3194 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3195 ciss_name_command_status(command_status)); 3196 ciss_release_request(cr); 3197 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3198 return; 3199 } 3200 3201 /* 3202 * If the adapter gave us a text message, print it. 3203 */ 3204 if (cn->message[0] != 0) 3205 ciss_printf(sc, "*** %.80s\n", cn->message); 3206 3207 debug(0, "notify event class %d subclass %d detail %d", 3208 cn->class, cn->subclass, cn->detail); 3209 3210 /* 3211 * If the response indicates that the notifier has been aborted, 3212 * release the notifier command. 3213 */ 3214 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3215 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3216 (cn->detail == 1)) { 3217 debug(0, "notifier exiting"); 3218 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3219 ciss_release_request(cr); 3220 sc->ciss_periodic_notify = NULL; 3221 wakeup(&sc->ciss_periodic_notify); 3222 } else { 3223 /* Handle notify events in a kernel thread */ 3224 ciss_enqueue_notify(cr); 3225 sc->ciss_periodic_notify = NULL; 3226 wakeup(&sc->ciss_periodic_notify); 3227 wakeup(&sc->ciss_notify); 3228 } 3229 /* 3230 * Send a new notify event command, if we're not aborting. 3231 */ 3232 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3233 ciss_notify_event(sc); 3234 } 3235 } 3236 3237 /************************************************************************ 3238 * Abort the Notify Event chain. 3239 * 3240 * Note that we can't just abort the command in progress; we have to 3241 * explicitly issue an Abort Notify Event command in order for the 3242 * adapter to clean up correctly. 3243 * 3244 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3245 * the chain will not restart itself. 3246 */ 3247 static int 3248 ciss_notify_abort(struct ciss_softc *sc) 3249 { 3250 struct ciss_request *cr; 3251 struct ciss_command *cc; 3252 struct ciss_notify_cdb *cnc; 3253 int error, s, command_status, scsi_status; 3254 3255 debug_called(1); 3256 3257 cr = NULL; 3258 error = 0; 3259 3260 /* verify that there's an outstanding command */ 3261 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3262 goto out; 3263 3264 /* get a command to issue the abort with */ 3265 if ((error = ciss_get_request(sc, &cr))) 3266 goto out; 3267 3268 /* get a buffer for the result */ 3269 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3270 debug(0, "can't get notify event request buffer"); 3271 error = ENOMEM; 3272 goto out; 3273 } 3274 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3275 3276 /* build the CDB */ 3277 cc = CISS_FIND_COMMAND(cr); 3278 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3279 cc->header.address.physical.bus = 0; 3280 cc->header.address.physical.target = 0; 3281 cc->cdb.cdb_length = sizeof(*cnc); 3282 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3283 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3284 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3285 cc->cdb.timeout = 0; /* no timeout, we hope */ 3286 3287 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3288 bzero(cnc, sizeof(*cnc)); 3289 cnc->opcode = CISS_OPCODE_WRITE; 3290 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3291 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3292 3293 ciss_print_request(cr); 3294 3295 /* 3296 * Submit the request and wait for it to complete. 3297 */ 3298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3299 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3300 goto out; 3301 } 3302 3303 /* 3304 * Check response. 3305 */ 3306 ciss_report_request(cr, &command_status, &scsi_status); 3307 switch(command_status) { 3308 case CISS_CMD_STATUS_SUCCESS: 3309 break; 3310 case CISS_CMD_STATUS_INVALID_COMMAND: 3311 /* 3312 * Some older adapters don't support the CISS version of this 3313 * command. Fall back to using the BMIC version. 3314 */ 3315 error = ciss_notify_abort_bmic(sc); 3316 if (error != 0) 3317 goto out; 3318 break; 3319 3320 case CISS_CMD_STATUS_TARGET_STATUS: 3321 /* 3322 * This can happen if the adapter thinks there wasn't an outstanding 3323 * Notify Event command but we did. We clean up here. 3324 */ 3325 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3326 if (sc->ciss_periodic_notify != NULL) 3327 ciss_release_request(sc->ciss_periodic_notify); 3328 error = 0; 3329 goto out; 3330 } 3331 /* FALLTHROUGH */ 3332 3333 default: 3334 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3335 ciss_name_command_status(command_status)); 3336 error = EIO; 3337 goto out; 3338 } 3339 3340 /* 3341 * Sleep waiting for the notifier command to complete. Note 3342 * that if it doesn't, we may end up in a bad situation, since 3343 * the adapter may deliver it later. Also note that the adapter 3344 * requires the Notify Event command to be cancelled in order to 3345 * maintain internal bookkeeping. 3346 */ 3347 s = splcam(); 3348 while (sc->ciss_periodic_notify != NULL) { 3349 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3350 if (error == EWOULDBLOCK) { 3351 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3352 break; 3353 } 3354 } 3355 splx(s); 3356 3357 out: 3358 /* release the cancel request */ 3359 if (cr != NULL) { 3360 if (cr->cr_data != NULL) 3361 free(cr->cr_data, CISS_MALLOC_CLASS); 3362 ciss_release_request(cr); 3363 } 3364 if (error == 0) 3365 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3366 return(error); 3367 } 3368 3369 /************************************************************************ 3370 * Abort the Notify Event chain using a BMIC command. 3371 */ 3372 static int 3373 ciss_notify_abort_bmic(struct ciss_softc *sc) 3374 { 3375 struct ciss_request *cr; 3376 int error, command_status; 3377 3378 debug_called(1); 3379 3380 cr = NULL; 3381 error = 0; 3382 3383 /* verify that there's an outstanding command */ 3384 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3385 goto out; 3386 3387 /* 3388 * Build a BMIC command to cancel the Notify on Event command. 3389 * 3390 * Note that we are sending a CISS opcode here. Odd. 3391 */ 3392 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3393 NULL, 0)) != 0) 3394 goto out; 3395 3396 /* 3397 * Submit the request and wait for it to complete. 3398 */ 3399 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3400 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3401 goto out; 3402 } 3403 3404 /* 3405 * Check response. 3406 */ 3407 ciss_report_request(cr, &command_status, NULL); 3408 switch(command_status) { 3409 case CISS_CMD_STATUS_SUCCESS: 3410 break; 3411 default: 3412 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3413 ciss_name_command_status(command_status)); 3414 error = EIO; 3415 goto out; 3416 } 3417 3418 out: 3419 if (cr != NULL) 3420 ciss_release_request(cr); 3421 return(error); 3422 } 3423 3424 /************************************************************************ 3425 * Handle rescanning all the logical volumes when a notify event 3426 * causes the drives to come online or offline. 3427 */ 3428 static void 3429 ciss_notify_rescan_logical(struct ciss_softc *sc) 3430 { 3431 struct ciss_lun_report *cll; 3432 struct ciss_ldrive *ld; 3433 int i, j, ndrives; 3434 3435 /* 3436 * We must rescan all logical volumes to get the right logical 3437 * drive address. 3438 */ 3439 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3440 CISS_MAX_LOGICAL); 3441 if (cll == NULL) 3442 return; 3443 3444 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3445 3446 /* 3447 * Delete any of the drives which were destroyed by the 3448 * firmware. 3449 */ 3450 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3451 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3452 ld = &sc->ciss_logical[i][j]; 3453 3454 if (ld->cl_update == 0) 3455 continue; 3456 3457 if (ld->cl_status != CISS_LD_ONLINE) { 3458 ciss_cam_rescan_target(sc, i, j); 3459 ld->cl_update = 0; 3460 if (ld->cl_ldrive) 3461 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3462 if (ld->cl_lstatus) 3463 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3464 3465 ld->cl_ldrive = NULL; 3466 ld->cl_lstatus = NULL; 3467 } 3468 } 3469 } 3470 3471 /* 3472 * Scan for new drives. 3473 */ 3474 for (i = 0; i < ndrives; i++) { 3475 int bus, target; 3476 3477 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3478 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3479 ld = &sc->ciss_logical[bus][target]; 3480 3481 if (ld->cl_update == 0) 3482 continue; 3483 3484 ld->cl_update = 0; 3485 ld->cl_address = cll->lun[i]; 3486 ld->cl_controller = &sc->ciss_controllers[bus]; 3487 if (ciss_identify_logical(sc, ld) == 0) { 3488 ciss_cam_rescan_target(sc, bus, target); 3489 } 3490 } 3491 free(cll, CISS_MALLOC_CLASS); 3492 } 3493 3494 /************************************************************************ 3495 * Handle a notify event relating to the status of a logical drive. 3496 * 3497 * XXX need to be able to defer some of these to properly handle 3498 * calling the "ID Physical drive" command, unless the 'extended' 3499 * drive IDs are always in BIG_MAP format. 3500 */ 3501 static void 3502 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3503 { 3504 struct ciss_ldrive *ld; 3505 int ostatus, bus, target; 3506 3507 debug_called(2); 3508 3509 bus = cn->device.physical.bus; 3510 target = cn->data.logical_status.logical_drive; 3511 ld = &sc->ciss_logical[bus][target]; 3512 3513 switch (cn->subclass) { 3514 case CISS_NOTIFY_LOGICAL_STATUS: 3515 switch (cn->detail) { 3516 case 0: 3517 ciss_name_device(sc, bus, target); 3518 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3519 cn->data.logical_status.logical_drive, ld->cl_name, 3520 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3521 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3522 cn->data.logical_status.spare_state, 3523 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3524 3525 /* 3526 * Update our idea of the drive's status. 3527 */ 3528 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3529 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3530 if (ld->cl_lstatus != NULL) 3531 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3532 3533 /* 3534 * Have CAM rescan the drive if its status has changed. 3535 */ 3536 if (ostatus != ld->cl_status) { 3537 ld->cl_update = 1; 3538 ciss_notify_rescan_logical(sc); 3539 } 3540 3541 break; 3542 3543 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3544 ciss_name_device(sc, bus, target); 3545 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3546 cn->data.logical_status.logical_drive, ld->cl_name); 3547 ciss_accept_media(sc, ld); 3548 3549 ld->cl_update = 1; 3550 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3551 ciss_notify_rescan_logical(sc); 3552 break; 3553 3554 case 2: 3555 case 3: 3556 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3557 cn->data.rebuild_aborted.logical_drive, 3558 ld->cl_name, 3559 (cn->detail == 2) ? "read" : "write"); 3560 break; 3561 } 3562 break; 3563 3564 case CISS_NOTIFY_LOGICAL_ERROR: 3565 if (cn->detail == 0) { 3566 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3567 cn->data.io_error.logical_drive, 3568 ld->cl_name, 3569 cn->data.io_error.failure_bus, 3570 cn->data.io_error.failure_drive); 3571 /* XXX should we take the drive down at this point, or will we be told? */ 3572 } 3573 break; 3574 3575 case CISS_NOTIFY_LOGICAL_SURFACE: 3576 if (cn->detail == 0) 3577 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3578 cn->data.consistency_completed.logical_drive, 3579 ld->cl_name); 3580 break; 3581 } 3582 } 3583 3584 /************************************************************************ 3585 * Handle a notify event relating to the status of a physical drive. 3586 */ 3587 static void 3588 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3589 { 3590 } 3591 3592 /************************************************************************ 3593 * Handle a notify event relating to the status of a physical drive. 3594 */ 3595 static void 3596 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3597 { 3598 struct ciss_lun_report *cll = NULL; 3599 int bus, target; 3600 int s; 3601 3602 switch (cn->subclass) { 3603 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3604 case CISS_NOTIFY_HOTPLUG_NONDISK: 3605 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3606 target = 3607 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3608 3609 s = splcam(); 3610 if (cn->detail == 0) { 3611 /* 3612 * Mark the device offline so that it'll start producing selection 3613 * timeouts to the upper layer. 3614 */ 3615 if ((bus >= 0) && (target >= 0)) 3616 sc->ciss_physical[bus][target].cp_online = 0; 3617 } else { 3618 /* 3619 * Rescan the physical lun list for new items 3620 */ 3621 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3622 CISS_MAX_PHYSICAL); 3623 if (cll == NULL) { 3624 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3625 break; 3626 } 3627 ciss_filter_physical(sc, cll); 3628 } 3629 splx(s); 3630 break; 3631 3632 default: 3633 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3634 return; 3635 } 3636 3637 if (cll != NULL) 3638 free(cll, CISS_MALLOC_CLASS); 3639 } 3640 3641 /************************************************************************ 3642 * Handle deferred processing of notify events. Notify events may need 3643 * sleep which is unsafe during an interrupt. 3644 */ 3645 static void 3646 ciss_notify_thread(void *arg) 3647 { 3648 struct ciss_softc *sc; 3649 struct ciss_request *cr; 3650 struct ciss_notify *cn; 3651 int s; 3652 3653 #if __FreeBSD_version >= 500000 3654 mtx_lock(&Giant); 3655 #endif 3656 sc = (struct ciss_softc *)arg; 3657 3658 s = splcam(); 3659 for (;;) { 3660 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3661 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3662 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3663 } 3664 3665 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3666 break; 3667 3668 cr = ciss_dequeue_notify(sc); 3669 splx(s); 3670 3671 if (cr == NULL) 3672 panic("cr null"); 3673 cn = (struct ciss_notify *)cr->cr_data; 3674 3675 switch (cn->class) { 3676 case CISS_NOTIFY_HOTPLUG: 3677 ciss_notify_hotplug(sc, cn); 3678 break; 3679 case CISS_NOTIFY_LOGICAL: 3680 ciss_notify_logical(sc, cn); 3681 break; 3682 case CISS_NOTIFY_PHYSICAL: 3683 ciss_notify_physical(sc, cn); 3684 break; 3685 } 3686 3687 ciss_release_request(cr); 3688 3689 s = splcam(); 3690 } 3691 sc->ciss_notify_thread = NULL; 3692 wakeup(&sc->ciss_notify_thread); 3693 splx(s); 3694 3695 #if __FreeBSD_version >= 500000 3696 mtx_unlock(&Giant); 3697 #endif 3698 kthread_exit(0); 3699 } 3700 3701 /************************************************************************ 3702 * Start the notification kernel thread. 3703 */ 3704 static void 3705 ciss_spawn_notify_thread(struct ciss_softc *sc) 3706 { 3707 3708 #if __FreeBSD_version > 500005 3709 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3710 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3711 device_get_unit(sc->ciss_dev))) 3712 #else 3713 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3714 &sc->ciss_notify_thread, "ciss_notify%d", 3715 device_get_unit(sc->ciss_dev))) 3716 #endif 3717 panic("Could not create notify thread\n"); 3718 } 3719 3720 /************************************************************************ 3721 * Kill the notification kernel thread. 3722 */ 3723 static void 3724 ciss_kill_notify_thread(struct ciss_softc *sc) 3725 { 3726 3727 if (sc->ciss_notify_thread == NULL) 3728 return; 3729 3730 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3731 wakeup(&sc->ciss_notify); 3732 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3733 } 3734 3735 /************************************************************************ 3736 * Print a request. 3737 */ 3738 static void 3739 ciss_print_request(struct ciss_request *cr) 3740 { 3741 struct ciss_softc *sc; 3742 struct ciss_command *cc; 3743 int i; 3744 3745 sc = cr->cr_sc; 3746 cc = CISS_FIND_COMMAND(cr); 3747 3748 ciss_printf(sc, "REQUEST @ %p\n", cr); 3749 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3750 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3751 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3752 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3753 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3754 switch(cc->header.address.mode.mode) { 3755 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3756 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3757 ciss_printf(sc, " physical bus %d target %d\n", 3758 cc->header.address.physical.bus, cc->header.address.physical.target); 3759 break; 3760 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3761 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3762 break; 3763 } 3764 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3765 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3766 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3767 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3768 cc->cdb.cdb_length, 3769 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3770 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3771 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3772 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3773 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3774 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3775 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3776 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3777 3778 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3779 /* XXX print error info */ 3780 } else { 3781 /* since we don't use chained s/g, don't support it here */ 3782 for (i = 0; i < cc->header.sg_in_list; i++) { 3783 if ((i % 4) == 0) 3784 ciss_printf(sc, " "); 3785 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3786 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3787 printf("\n"); 3788 } 3789 } 3790 } 3791 3792 /************************************************************************ 3793 * Print information about the status of a logical drive. 3794 */ 3795 static void 3796 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3797 { 3798 int bus, target, i; 3799 3800 if (ld->cl_lstatus == NULL) { 3801 printf("does not exist\n"); 3802 return; 3803 } 3804 3805 /* print drive status */ 3806 switch(ld->cl_lstatus->status) { 3807 case CISS_LSTATUS_OK: 3808 printf("online\n"); 3809 break; 3810 case CISS_LSTATUS_INTERIM_RECOVERY: 3811 printf("in interim recovery mode\n"); 3812 break; 3813 case CISS_LSTATUS_READY_RECOVERY: 3814 printf("ready to begin recovery\n"); 3815 break; 3816 case CISS_LSTATUS_RECOVERING: 3817 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3818 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3819 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3820 bus, target, ld->cl_lstatus->blocks_to_recover); 3821 break; 3822 case CISS_LSTATUS_EXPANDING: 3823 printf("being expanded, %u blocks remaining\n", 3824 ld->cl_lstatus->blocks_to_recover); 3825 break; 3826 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3827 printf("queued for expansion\n"); 3828 break; 3829 case CISS_LSTATUS_FAILED: 3830 printf("queued for expansion\n"); 3831 break; 3832 case CISS_LSTATUS_WRONG_PDRIVE: 3833 printf("wrong physical drive inserted\n"); 3834 break; 3835 case CISS_LSTATUS_MISSING_PDRIVE: 3836 printf("missing a needed physical drive\n"); 3837 break; 3838 case CISS_LSTATUS_BECOMING_READY: 3839 printf("becoming ready\n"); 3840 break; 3841 } 3842 3843 /* print failed physical drives */ 3844 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3845 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3846 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3847 if (bus == -1) 3848 continue; 3849 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3850 ld->cl_lstatus->drive_failure_map[i]); 3851 } 3852 } 3853 3854 #ifdef CISS_DEBUG 3855 /************************************************************************ 3856 * Print information about the controller/driver. 3857 */ 3858 static void 3859 ciss_print_adapter(struct ciss_softc *sc) 3860 { 3861 int i, j; 3862 3863 ciss_printf(sc, "ADAPTER:\n"); 3864 for (i = 0; i < CISSQ_COUNT; i++) { 3865 ciss_printf(sc, "%s %d/%d\n", 3866 i == 0 ? "free" : 3867 i == 1 ? "busy" : "complete", 3868 sc->ciss_qstat[i].q_length, 3869 sc->ciss_qstat[i].q_max); 3870 } 3871 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3872 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3873 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3874 3875 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3876 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3877 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3878 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3879 } 3880 } 3881 3882 /* XXX Should physical drives be printed out here? */ 3883 3884 for (i = 1; i < sc->ciss_max_requests; i++) 3885 ciss_print_request(sc->ciss_request + i); 3886 } 3887 3888 /* DDB hook */ 3889 static void 3890 ciss_print0(void) 3891 { 3892 struct ciss_softc *sc; 3893 3894 sc = devclass_get_softc(devclass_find("ciss"), 0); 3895 if (sc == NULL) { 3896 printf("no ciss controllers\n"); 3897 } else { 3898 ciss_print_adapter(sc); 3899 } 3900 } 3901 #endif 3902 3903 /************************************************************************ 3904 * Return a name for a logical drive status value. 3905 */ 3906 static const char * 3907 ciss_name_ldrive_status(int status) 3908 { 3909 switch (status) { 3910 case CISS_LSTATUS_OK: 3911 return("OK"); 3912 case CISS_LSTATUS_FAILED: 3913 return("failed"); 3914 case CISS_LSTATUS_NOT_CONFIGURED: 3915 return("not configured"); 3916 case CISS_LSTATUS_INTERIM_RECOVERY: 3917 return("interim recovery"); 3918 case CISS_LSTATUS_READY_RECOVERY: 3919 return("ready for recovery"); 3920 case CISS_LSTATUS_RECOVERING: 3921 return("recovering"); 3922 case CISS_LSTATUS_WRONG_PDRIVE: 3923 return("wrong physical drive inserted"); 3924 case CISS_LSTATUS_MISSING_PDRIVE: 3925 return("missing physical drive"); 3926 case CISS_LSTATUS_EXPANDING: 3927 return("expanding"); 3928 case CISS_LSTATUS_BECOMING_READY: 3929 return("becoming ready"); 3930 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3931 return("queued for expansion"); 3932 } 3933 return("unknown status"); 3934 } 3935 3936 /************************************************************************ 3937 * Return an online/offline/nonexistent value for a logical drive 3938 * status value. 3939 */ 3940 static int 3941 ciss_decode_ldrive_status(int status) 3942 { 3943 switch(status) { 3944 case CISS_LSTATUS_NOT_CONFIGURED: 3945 return(CISS_LD_NONEXISTENT); 3946 3947 case CISS_LSTATUS_OK: 3948 case CISS_LSTATUS_INTERIM_RECOVERY: 3949 case CISS_LSTATUS_READY_RECOVERY: 3950 case CISS_LSTATUS_RECOVERING: 3951 case CISS_LSTATUS_EXPANDING: 3952 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3953 return(CISS_LD_ONLINE); 3954 3955 case CISS_LSTATUS_FAILED: 3956 case CISS_LSTATUS_WRONG_PDRIVE: 3957 case CISS_LSTATUS_MISSING_PDRIVE: 3958 case CISS_LSTATUS_BECOMING_READY: 3959 default: 3960 return(CISS_LD_OFFLINE); 3961 } 3962 } 3963 3964 3965 /************************************************************************ 3966 * Return a name for a logical drive's organisation. 3967 */ 3968 static const char * 3969 ciss_name_ldrive_org(int org) 3970 { 3971 switch(org) { 3972 case CISS_LDRIVE_RAID0: 3973 return("RAID 0"); 3974 case CISS_LDRIVE_RAID1: 3975 return("RAID 1"); 3976 case CISS_LDRIVE_RAID4: 3977 return("RAID 4"); 3978 case CISS_LDRIVE_RAID5: 3979 return("RAID 5"); 3980 case CISS_LDRIVE_RAID51: 3981 return("RAID 5+1"); 3982 case CISS_LDRIVE_RAIDADG: 3983 return("RAID ADG"); 3984 } 3985 return("unkown"); 3986 } 3987 3988 /************************************************************************ 3989 * Return a name for a command status value. 3990 */ 3991 static const char * 3992 ciss_name_command_status(int status) 3993 { 3994 switch(status) { 3995 case CISS_CMD_STATUS_SUCCESS: 3996 return("success"); 3997 case CISS_CMD_STATUS_TARGET_STATUS: 3998 return("target status"); 3999 case CISS_CMD_STATUS_DATA_UNDERRUN: 4000 return("data underrun"); 4001 case CISS_CMD_STATUS_DATA_OVERRUN: 4002 return("data overrun"); 4003 case CISS_CMD_STATUS_INVALID_COMMAND: 4004 return("invalid command"); 4005 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4006 return("protocol error"); 4007 case CISS_CMD_STATUS_HARDWARE_ERROR: 4008 return("hardware error"); 4009 case CISS_CMD_STATUS_CONNECTION_LOST: 4010 return("connection lost"); 4011 case CISS_CMD_STATUS_ABORTED: 4012 return("aborted"); 4013 case CISS_CMD_STATUS_ABORT_FAILED: 4014 return("abort failed"); 4015 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4016 return("unsolicited abort"); 4017 case CISS_CMD_STATUS_TIMEOUT: 4018 return("timeout"); 4019 case CISS_CMD_STATUS_UNABORTABLE: 4020 return("unabortable"); 4021 } 4022 return("unknown status"); 4023 } 4024 4025 /************************************************************************ 4026 * Handle an open on the control device. 4027 */ 4028 static int 4029 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4030 { 4031 struct ciss_softc *sc; 4032 4033 debug_called(1); 4034 4035 sc = (struct ciss_softc *)dev->si_drv1; 4036 4037 /* we might want to veto if someone already has us open */ 4038 4039 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4040 return(0); 4041 } 4042 4043 /************************************************************************ 4044 * Handle the last close on the control device. 4045 */ 4046 static int 4047 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4048 { 4049 struct ciss_softc *sc; 4050 4051 debug_called(1); 4052 4053 sc = (struct ciss_softc *)dev->si_drv1; 4054 4055 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4056 return (0); 4057 } 4058 4059 /******************************************************************************** 4060 * Handle adapter-specific control operations. 4061 * 4062 * Note that the API here is compatible with the Linux driver, in order to 4063 * simplify the porting of Compaq's userland tools. 4064 */ 4065 static int 4066 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4067 { 4068 struct ciss_softc *sc; 4069 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4070 #ifdef __amd64__ 4071 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4072 IOCTL_Command_struct ioc_swab; 4073 #endif 4074 int error; 4075 4076 debug_called(1); 4077 4078 sc = (struct ciss_softc *)dev->si_drv1; 4079 error = 0; 4080 4081 switch(cmd) { 4082 case CCISS_GETPCIINFO: 4083 { 4084 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4085 4086 pis->bus = pci_get_bus(sc->ciss_dev); 4087 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4088 pis->board_id = pci_get_devid(sc->ciss_dev); 4089 4090 break; 4091 } 4092 4093 case CCISS_GETINTINFO: 4094 { 4095 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4096 4097 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4098 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4099 4100 break; 4101 } 4102 4103 case CCISS_SETINTINFO: 4104 { 4105 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4106 4107 if ((cis->delay == 0) && (cis->count == 0)) { 4108 error = EINVAL; 4109 break; 4110 } 4111 4112 /* 4113 * XXX apparently this is only safe if the controller is idle, 4114 * we should suspend it before doing this. 4115 */ 4116 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4117 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4118 4119 if (ciss_update_config(sc)) 4120 error = EIO; 4121 4122 /* XXX resume the controller here */ 4123 break; 4124 } 4125 4126 case CCISS_GETNODENAME: 4127 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4128 sizeof(NodeName_type)); 4129 break; 4130 4131 case CCISS_SETNODENAME: 4132 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4133 sizeof(NodeName_type)); 4134 if (ciss_update_config(sc)) 4135 error = EIO; 4136 break; 4137 4138 case CCISS_GETHEARTBEAT: 4139 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4140 break; 4141 4142 case CCISS_GETBUSTYPES: 4143 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4144 break; 4145 4146 case CCISS_GETFIRMVER: 4147 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4148 sizeof(FirmwareVer_type)); 4149 break; 4150 4151 case CCISS_GETDRIVERVER: 4152 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4153 break; 4154 4155 case CCISS_REVALIDVOLS: 4156 /* 4157 * This is a bit ugly; to do it "right" we really need 4158 * to find any disks that have changed, kick CAM off them, 4159 * then rescan only these disks. It'd be nice if they 4160 * a) told us which disk(s) they were going to play with, 4161 * and b) which ones had arrived. 8( 4162 */ 4163 break; 4164 4165 #ifdef __amd64__ 4166 case CCISS_PASSTHRU32: 4167 ioc_swab.LUN_info = ioc32->LUN_info; 4168 ioc_swab.Request = ioc32->Request; 4169 ioc_swab.error_info = ioc32->error_info; 4170 ioc_swab.buf_size = ioc32->buf_size; 4171 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4172 ioc = &ioc_swab; 4173 /* FALLTHROUGH */ 4174 #endif 4175 4176 case CCISS_PASSTHRU: 4177 error = ciss_user_command(sc, ioc); 4178 break; 4179 4180 default: 4181 debug(0, "unknown ioctl 0x%lx", cmd); 4182 4183 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4184 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4185 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4186 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4187 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4188 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4189 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4190 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4191 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4192 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4193 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4194 4195 error = ENOIOCTL; 4196 break; 4197 } 4198 4199 return(error); 4200 } 4201