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/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissvar.h> 106 #include <dev/ciss/cissio.h> 107 108 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_wait_adapter(struct ciss_softc *sc); 120 static int ciss_flush_adapter(struct ciss_softc *sc); 121 static int ciss_init_requests(struct ciss_softc *sc); 122 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 123 int nseg, int error); 124 static int ciss_identify_adapter(struct ciss_softc *sc); 125 static int ciss_init_logical(struct ciss_softc *sc); 126 static int ciss_init_physical(struct ciss_softc *sc); 127 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 128 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 129 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 130 static int ciss_update_config(struct ciss_softc *sc); 131 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static void ciss_init_sysctl(struct ciss_softc *sc); 133 static void ciss_soft_reset(struct ciss_softc *sc); 134 static void ciss_free(struct ciss_softc *sc); 135 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 136 static void ciss_kill_notify_thread(struct ciss_softc *sc); 137 138 /* request submission/completion */ 139 static int ciss_start(struct ciss_request *cr); 140 static void ciss_done(struct ciss_softc *sc); 141 static void ciss_intr(void *arg); 142 static void ciss_complete(struct ciss_softc *sc); 143 static int ciss_report_request(struct ciss_request *cr, int *command_status, 144 int *scsi_status); 145 static int ciss_synch_request(struct ciss_request *cr, int timeout); 146 static int ciss_poll_request(struct ciss_request *cr, int timeout); 147 static int ciss_wait_request(struct ciss_request *cr, int timeout); 148 #if 0 149 static int ciss_abort_request(struct ciss_request *cr); 150 #endif 151 152 /* request queueing */ 153 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 154 static void ciss_preen_command(struct ciss_request *cr); 155 static void ciss_release_request(struct ciss_request *cr); 156 157 /* request helpers */ 158 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 159 int opcode, void **bufp, size_t bufsize); 160 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 161 162 /* DMA map/unmap */ 163 static int ciss_map_request(struct ciss_request *cr); 164 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 165 int nseg, int error); 166 static void ciss_unmap_request(struct ciss_request *cr); 167 168 /* CAM interface */ 169 static int ciss_cam_init(struct ciss_softc *sc); 170 static void ciss_cam_rescan_target(struct ciss_softc *sc, 171 int bus, int target); 172 static void ciss_cam_rescan_all(struct ciss_softc *sc); 173 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 174 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 175 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 176 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 177 static void ciss_cam_poll(struct cam_sim *sim); 178 static void ciss_cam_complete(struct ciss_request *cr); 179 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 181 int bus, int target); 182 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 183 184 /* periodic status monitoring */ 185 static void ciss_periodic(void *arg); 186 static void ciss_notify_event(struct ciss_softc *sc); 187 static void ciss_notify_complete(struct ciss_request *cr); 188 static int ciss_notify_abort(struct ciss_softc *sc); 189 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 190 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 191 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 192 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 193 194 /* debugging output */ 195 static void ciss_print_request(struct ciss_request *cr); 196 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 197 static const char *ciss_name_ldrive_status(int status); 198 static int ciss_decode_ldrive_status(int status); 199 static const char *ciss_name_ldrive_org(int org); 200 static const char *ciss_name_command_status(int status); 201 202 /* 203 * PCI bus interface. 204 */ 205 static device_method_t ciss_methods[] = { 206 /* Device interface */ 207 DEVMETHOD(device_probe, ciss_probe), 208 DEVMETHOD(device_attach, ciss_attach), 209 DEVMETHOD(device_detach, ciss_detach), 210 DEVMETHOD(device_shutdown, ciss_shutdown), 211 { 0, 0 } 212 }; 213 214 static driver_t ciss_pci_driver = { 215 "ciss", 216 ciss_methods, 217 sizeof(struct ciss_softc) 218 }; 219 220 static devclass_t ciss_devclass; 221 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 222 223 /* 224 * Control device interface. 225 */ 226 static d_open_t ciss_open; 227 static d_close_t ciss_close; 228 static d_ioctl_t ciss_ioctl; 229 230 static struct cdevsw ciss_cdevsw = { 231 .d_version = D_VERSION, 232 .d_flags = D_NEEDGIANT, 233 .d_open = ciss_open, 234 .d_close = ciss_close, 235 .d_ioctl = ciss_ioctl, 236 .d_name = "ciss", 237 }; 238 239 /* 240 * This tunable can be set at boot time and controls whether physical devices 241 * that are marked hidden by the firmware should be exposed anyways. 242 */ 243 static unsigned int ciss_expose_hidden_physical = 0; 244 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 245 246 /************************************************************************ 247 * CISS adapters amazingly don't have a defined programming interface 248 * value. (One could say some very despairing things about PCI and 249 * people just not getting the general idea.) So we are forced to 250 * stick with matching against subvendor/subdevice, and thus have to 251 * be updated for every new CISS adapter that appears. 252 */ 253 #define CISS_BOARD_SA5 (1<<0) 254 #define CISS_BOARD_SA5B (1<<1) 255 256 static struct 257 { 258 u_int16_t subvendor; 259 u_int16_t subdevice; 260 int flags; 261 char *desc; 262 } ciss_vendor_data[] = { 263 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 264 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 265 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 266 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 267 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 268 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 269 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 270 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 271 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 272 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 273 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 274 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 275 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 276 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 277 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 278 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 280 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 281 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 282 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 286 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 287 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 288 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 291 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 292 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 293 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 294 { 0, 0, 0, NULL } 295 }; 296 297 /************************************************************************ 298 * Find a match for the device in our list of known adapters. 299 */ 300 static int 301 ciss_lookup(device_t dev) 302 { 303 int i; 304 305 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 306 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 307 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 308 return(i); 309 } 310 return(-1); 311 } 312 313 /************************************************************************ 314 * Match a known CISS adapter. 315 */ 316 static int 317 ciss_probe(device_t dev) 318 { 319 int i; 320 321 i = ciss_lookup(dev); 322 if (i != -1) { 323 device_set_desc(dev, ciss_vendor_data[i].desc); 324 return(BUS_PROBE_DEFAULT); 325 } 326 return(ENOENT); 327 } 328 329 /************************************************************************ 330 * Attach the driver to this adapter. 331 */ 332 static int 333 ciss_attach(device_t dev) 334 { 335 struct ciss_softc *sc; 336 int i, error; 337 338 debug_called(1); 339 340 #ifdef CISS_DEBUG 341 /* print structure/union sizes */ 342 debug_struct(ciss_command); 343 debug_struct(ciss_header); 344 debug_union(ciss_device_address); 345 debug_struct(ciss_cdb); 346 debug_struct(ciss_report_cdb); 347 debug_struct(ciss_notify_cdb); 348 debug_struct(ciss_notify); 349 debug_struct(ciss_message_cdb); 350 debug_struct(ciss_error_info_pointer); 351 debug_struct(ciss_error_info); 352 debug_struct(ciss_sg_entry); 353 debug_struct(ciss_config_table); 354 debug_struct(ciss_bmic_cdb); 355 debug_struct(ciss_bmic_id_ldrive); 356 debug_struct(ciss_bmic_id_lstatus); 357 debug_struct(ciss_bmic_id_table); 358 debug_struct(ciss_bmic_id_pdrive); 359 debug_struct(ciss_bmic_blink_pdrive); 360 debug_struct(ciss_bmic_flush_cache); 361 debug_const(CISS_MAX_REQUESTS); 362 debug_const(CISS_MAX_LOGICAL); 363 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 364 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 365 debug_const(CISS_COMMAND_ALLOC_SIZE); 366 debug_const(CISS_COMMAND_SG_LENGTH); 367 368 debug_type(cciss_pci_info_struct); 369 debug_type(cciss_coalint_struct); 370 debug_type(cciss_coalint_struct); 371 debug_type(NodeName_type); 372 debug_type(NodeName_type); 373 debug_type(Heartbeat_type); 374 debug_type(BusTypes_type); 375 debug_type(FirmwareVer_type); 376 debug_type(DriverVer_type); 377 debug_type(IOCTL_Command_struct); 378 #endif 379 380 sc = device_get_softc(dev); 381 sc->ciss_dev = dev; 382 383 /* 384 * Work out adapter type. 385 */ 386 i = ciss_lookup(dev); 387 if (i < 0) { 388 ciss_printf(sc, "unknown adapter type\n"); 389 error = ENXIO; 390 goto out; 391 } 392 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 393 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 394 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 395 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 396 } else { 397 /* really an error on our part */ 398 ciss_printf(sc, "unable to determine hardware type\n"); 399 error = ENXIO; 400 goto out; 401 } 402 403 /* 404 * Do PCI-specific init. 405 */ 406 if ((error = ciss_init_pci(sc)) != 0) 407 goto out; 408 409 /* 410 * Initialise driver queues. 411 */ 412 ciss_initq_free(sc); 413 ciss_initq_busy(sc); 414 ciss_initq_complete(sc); 415 ciss_initq_notify(sc); 416 417 /* 418 * Initalize device sysctls. 419 */ 420 ciss_init_sysctl(sc); 421 422 /* 423 * Initialise command/request pool. 424 */ 425 if ((error = ciss_init_requests(sc)) != 0) 426 goto out; 427 428 /* 429 * Get adapter information. 430 */ 431 if ((error = ciss_identify_adapter(sc)) != 0) 432 goto out; 433 434 /* 435 * Find all the physical devices. 436 */ 437 if ((error = ciss_init_physical(sc)) != 0) 438 goto out; 439 440 /* 441 * Build our private table of logical devices. 442 */ 443 if ((error = ciss_init_logical(sc)) != 0) 444 goto out; 445 446 /* 447 * Enable interrupts so that the CAM scan can complete. 448 */ 449 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 450 451 /* 452 * Initialise the CAM interface. 453 */ 454 if ((error = ciss_cam_init(sc)) != 0) 455 goto out; 456 457 /* 458 * Start the heartbeat routine and event chain. 459 */ 460 ciss_periodic(sc); 461 462 /* 463 * Create the control device. 464 */ 465 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 466 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 467 "ciss%d", device_get_unit(sc->ciss_dev)); 468 sc->ciss_dev_t->si_drv1 = sc; 469 470 /* 471 * The adapter is running; synchronous commands can now sleep 472 * waiting for an interrupt to signal completion. 473 */ 474 sc->ciss_flags |= CISS_FLAG_RUNNING; 475 476 ciss_spawn_notify_thread(sc); 477 478 error = 0; 479 out: 480 if (error != 0) 481 ciss_free(sc); 482 return(error); 483 } 484 485 /************************************************************************ 486 * Detach the driver from this adapter. 487 */ 488 static int 489 ciss_detach(device_t dev) 490 { 491 struct ciss_softc *sc = device_get_softc(dev); 492 493 debug_called(1); 494 495 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 496 return (EBUSY); 497 498 /* flush adapter cache */ 499 ciss_flush_adapter(sc); 500 501 /* release all resources */ 502 ciss_free(sc); 503 504 return(0); 505 } 506 507 /************************************************************************ 508 * Prepare adapter for system shutdown. 509 */ 510 static int 511 ciss_shutdown(device_t dev) 512 { 513 struct ciss_softc *sc = device_get_softc(dev); 514 515 debug_called(1); 516 517 /* flush adapter cache */ 518 ciss_flush_adapter(sc); 519 520 if (sc->ciss_soft_reset) 521 ciss_soft_reset(sc); 522 523 return(0); 524 } 525 526 static void 527 ciss_init_sysctl(struct ciss_softc *sc) 528 { 529 530 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 531 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 532 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 533 } 534 535 /************************************************************************ 536 * Perform PCI-specific attachment actions. 537 */ 538 static int 539 ciss_init_pci(struct ciss_softc *sc) 540 { 541 uintptr_t cbase, csize, cofs; 542 int error; 543 544 debug_called(1); 545 546 /* 547 * Allocate register window first (we need this to find the config 548 * struct). 549 */ 550 error = ENXIO; 551 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 552 if ((sc->ciss_regs_resource = 553 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 554 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 555 ciss_printf(sc, "can't allocate register window\n"); 556 return(ENXIO); 557 } 558 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 559 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 560 561 /* 562 * Find the BAR holding the config structure. If it's not the one 563 * we already mapped for registers, map it too. 564 */ 565 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 566 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 567 if ((sc->ciss_cfg_resource = 568 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 569 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 570 ciss_printf(sc, "can't allocate config window\n"); 571 return(ENXIO); 572 } 573 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 574 csize = rman_get_end(sc->ciss_cfg_resource) - 575 rman_get_start(sc->ciss_cfg_resource) + 1; 576 } else { 577 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 578 csize = rman_get_end(sc->ciss_regs_resource) - 579 rman_get_start(sc->ciss_regs_resource) + 1; 580 } 581 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 582 583 /* 584 * Use the base/size/offset values we just calculated to 585 * sanity-check the config structure. If it's OK, point to it. 586 */ 587 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 588 ciss_printf(sc, "config table outside window\n"); 589 return(ENXIO); 590 } 591 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 592 debug(1, "config struct at %p", sc->ciss_cfg); 593 594 /* 595 * Validate the config structure. If we supported other transport 596 * methods, we could select amongst them at this point in time. 597 */ 598 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 599 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 600 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 601 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 602 return(ENXIO); 603 } 604 605 /* 606 * Put the board into simple mode, and tell it we're using the low 607 * 4GB of RAM. Set the default interrupt coalescing options. 608 */ 609 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 610 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 611 return(ENXIO); 612 } 613 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 614 sc->ciss_cfg->command_physlimit = 0; 615 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 616 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 617 618 #ifdef __i386__ 619 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 620 #endif 621 622 if (ciss_update_config(sc)) { 623 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 624 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 625 return(ENXIO); 626 } 627 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 628 ciss_printf(sc, 629 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 630 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 631 return(ENXIO); 632 } 633 634 /* 635 * Wait for the adapter to come ready. 636 */ 637 if ((error = ciss_wait_adapter(sc)) != 0) 638 return(error); 639 640 /* 641 * Turn off interrupts before we go routing anything. 642 */ 643 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 644 645 /* 646 * Allocate and set up our interrupt. 647 */ 648 sc->ciss_irq_rid = 0; 649 if ((sc->ciss_irq_resource = 650 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 651 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 652 ciss_printf(sc, "can't allocate interrupt\n"); 653 return(ENXIO); 654 } 655 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 656 INTR_TYPE_CAM|INTR_ENTROPY, ciss_intr, sc, 657 &sc->ciss_intr)) { 658 ciss_printf(sc, "can't set up interrupt\n"); 659 return(ENXIO); 660 } 661 662 /* 663 * Allocate the parent bus DMA tag appropriate for our PCI 664 * interface. 665 * 666 * Note that "simple" adapters can only address within a 32-bit 667 * span. 668 */ 669 if (bus_dma_tag_create(NULL, /* parent */ 670 1, 0, /* alignment, boundary */ 671 BUS_SPACE_MAXADDR, /* lowaddr */ 672 BUS_SPACE_MAXADDR, /* highaddr */ 673 NULL, NULL, /* filter, filterarg */ 674 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 675 CISS_COMMAND_SG_LENGTH, /* nsegments */ 676 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 677 BUS_DMA_ALLOCNOW, /* flags */ 678 NULL, NULL, /* lockfunc, lockarg */ 679 &sc->ciss_parent_dmat)) { 680 ciss_printf(sc, "can't allocate parent DMA tag\n"); 681 return(ENOMEM); 682 } 683 684 /* 685 * Create DMA tag for mapping buffers into adapter-addressable 686 * space. 687 */ 688 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 689 1, 0, /* alignment, boundary */ 690 BUS_SPACE_MAXADDR, /* lowaddr */ 691 BUS_SPACE_MAXADDR, /* highaddr */ 692 NULL, NULL, /* filter, filterarg */ 693 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 694 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 695 0, /* flags */ 696 busdma_lock_mutex, &Giant, /* lockfunc, lockarg */ 697 &sc->ciss_buffer_dmat)) { 698 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 699 return(ENOMEM); 700 } 701 return(0); 702 } 703 704 /************************************************************************ 705 * Wait for the adapter to come ready. 706 */ 707 static int 708 ciss_wait_adapter(struct ciss_softc *sc) 709 { 710 int i; 711 712 debug_called(1); 713 714 /* 715 * Wait for the adapter to come ready. 716 */ 717 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 718 ciss_printf(sc, "waiting for adapter to come ready...\n"); 719 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 720 DELAY(1000000); /* one second */ 721 if (i > 30) { 722 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 723 return(EIO); 724 } 725 } 726 } 727 return(0); 728 } 729 730 /************************************************************************ 731 * Flush the adapter cache. 732 */ 733 static int 734 ciss_flush_adapter(struct ciss_softc *sc) 735 { 736 struct ciss_request *cr; 737 struct ciss_bmic_flush_cache *cbfc; 738 int error, command_status; 739 740 debug_called(1); 741 742 cr = NULL; 743 cbfc = NULL; 744 745 /* 746 * Build a BMIC request to flush the cache. We don't disable 747 * it, as we may be going to do more I/O (eg. we are emulating 748 * the Synchronise Cache command). 749 */ 750 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 751 error = ENOMEM; 752 goto out; 753 } 754 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 755 (void **)&cbfc, sizeof(*cbfc))) != 0) 756 goto out; 757 758 /* 759 * Submit the request and wait for it to complete. 760 */ 761 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 762 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 763 goto out; 764 } 765 766 /* 767 * Check response. 768 */ 769 ciss_report_request(cr, &command_status, NULL); 770 switch(command_status) { 771 case CISS_CMD_STATUS_SUCCESS: 772 break; 773 default: 774 ciss_printf(sc, "error flushing cache (%s)\n", 775 ciss_name_command_status(command_status)); 776 error = EIO; 777 goto out; 778 } 779 780 out: 781 if (cbfc != NULL) 782 free(cbfc, CISS_MALLOC_CLASS); 783 if (cr != NULL) 784 ciss_release_request(cr); 785 return(error); 786 } 787 788 static void 789 ciss_soft_reset(struct ciss_softc *sc) 790 { 791 struct ciss_request *cr = NULL; 792 struct ciss_command *cc; 793 int i, error = 0; 794 795 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 796 /* only reset proxy controllers */ 797 if (sc->ciss_controllers[i].physical.bus == 0) 798 continue; 799 800 if ((error = ciss_get_request(sc, &cr)) != 0) 801 break; 802 803 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 804 NULL, 0)) != 0) 805 break; 806 807 cc = CISS_FIND_COMMAND(cr); 808 cc->header.address = sc->ciss_controllers[i]; 809 810 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 811 break; 812 813 ciss_release_request(cr); 814 } 815 816 if (error) 817 ciss_printf(sc, "error resetting controller (%d)\n", error); 818 819 if (cr != NULL) 820 ciss_release_request(cr); 821 } 822 823 /************************************************************************ 824 * Allocate memory for the adapter command structures, initialise 825 * the request structures. 826 * 827 * Note that the entire set of commands are allocated in a single 828 * contiguous slab. 829 */ 830 static int 831 ciss_init_requests(struct ciss_softc *sc) 832 { 833 struct ciss_request *cr; 834 int i; 835 836 debug_called(1); 837 838 /* 839 * Calculate the number of request structures/commands we are 840 * going to provide for this adapter. 841 */ 842 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 843 844 if (bootverbose) 845 ciss_printf(sc, "using %d of %d available commands\n", 846 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 847 848 /* 849 * Create the DMA tag for commands. 850 */ 851 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 852 1, 0, /* alignment, boundary */ 853 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 854 BUS_SPACE_MAXADDR, /* highaddr */ 855 NULL, NULL, /* filter, filterarg */ 856 CISS_COMMAND_ALLOC_SIZE * 857 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 858 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 859 BUS_DMA_ALLOCNOW, /* flags */ 860 NULL, NULL, /* lockfunc, lockarg */ 861 &sc->ciss_command_dmat)) { 862 ciss_printf(sc, "can't allocate command DMA tag\n"); 863 return(ENOMEM); 864 } 865 /* 866 * Allocate memory and make it available for DMA. 867 */ 868 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 869 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 870 ciss_printf(sc, "can't allocate command memory\n"); 871 return(ENOMEM); 872 } 873 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 874 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 875 ciss_command_map_helper, sc, 0); 876 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 877 878 /* 879 * Set up the request and command structures, push requests onto 880 * the free queue. 881 */ 882 for (i = 1; i < sc->ciss_max_requests; i++) { 883 cr = &sc->ciss_request[i]; 884 cr->cr_sc = sc; 885 cr->cr_tag = i; 886 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 887 ciss_enqueue_free(cr); 888 } 889 return(0); 890 } 891 892 static void 893 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 894 { 895 struct ciss_softc *sc = (struct ciss_softc *)arg; 896 897 sc->ciss_command_phys = segs->ds_addr; 898 } 899 900 /************************************************************************ 901 * Identify the adapter, print some information about it. 902 */ 903 static int 904 ciss_identify_adapter(struct ciss_softc *sc) 905 { 906 struct ciss_request *cr; 907 int error, command_status; 908 909 debug_called(1); 910 911 cr = NULL; 912 913 /* 914 * Get a request, allocate storage for the adapter data. 915 */ 916 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 917 (void **)&sc->ciss_id, 918 sizeof(*sc->ciss_id))) != 0) 919 goto out; 920 921 /* 922 * Submit the request and wait for it to complete. 923 */ 924 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 925 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 926 goto out; 927 } 928 929 /* 930 * Check response. 931 */ 932 ciss_report_request(cr, &command_status, NULL); 933 switch(command_status) { 934 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 935 break; 936 case CISS_CMD_STATUS_DATA_UNDERRUN: 937 case CISS_CMD_STATUS_DATA_OVERRUN: 938 ciss_printf(sc, "data over/underrun reading adapter information\n"); 939 default: 940 ciss_printf(sc, "error reading adapter information (%s)\n", 941 ciss_name_command_status(command_status)); 942 error = EIO; 943 goto out; 944 } 945 946 /* sanity-check reply */ 947 if (!sc->ciss_id->big_map_supported) { 948 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 949 error = ENXIO; 950 goto out; 951 } 952 953 #if 0 954 /* XXX later revisions may not need this */ 955 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 956 #endif 957 958 /* XXX only really required for old 5300 adapters? */ 959 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 960 961 /* print information */ 962 if (bootverbose) { 963 #if 0 /* XXX proxy volumes??? */ 964 ciss_printf(sc, " %d logical drive%s configured\n", 965 sc->ciss_id->configured_logical_drives, 966 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 967 #endif 968 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 969 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 970 971 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 972 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 973 ciss_printf(sc, " supported I/O methods 0x%b\n", 974 sc->ciss_cfg->supported_methods, 975 "\20\1READY\2simple\3performant\4MEMQ\n"); 976 ciss_printf(sc, " active I/O method 0x%b\n", 977 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 978 ciss_printf(sc, " 4G page base 0x%08x\n", 979 sc->ciss_cfg->command_physlimit); 980 ciss_printf(sc, " interrupt coalesce delay %dus\n", 981 sc->ciss_cfg->interrupt_coalesce_delay); 982 ciss_printf(sc, " interrupt coalesce count %d\n", 983 sc->ciss_cfg->interrupt_coalesce_count); 984 ciss_printf(sc, " max outstanding commands %d\n", 985 sc->ciss_cfg->max_outstanding_commands); 986 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 987 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 988 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 989 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 990 } 991 992 out: 993 if (error) { 994 if (sc->ciss_id != NULL) { 995 free(sc->ciss_id, CISS_MALLOC_CLASS); 996 sc->ciss_id = NULL; 997 } 998 } 999 if (cr != NULL) 1000 ciss_release_request(cr); 1001 return(error); 1002 } 1003 1004 /************************************************************************ 1005 * Helper routine for generating a list of logical and physical luns. 1006 */ 1007 static struct ciss_lun_report * 1008 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1009 { 1010 struct ciss_request *cr; 1011 struct ciss_command *cc; 1012 struct ciss_report_cdb *crc; 1013 struct ciss_lun_report *cll; 1014 int command_status; 1015 int report_size; 1016 int error = 0; 1017 1018 debug_called(1); 1019 1020 cr = NULL; 1021 cll = NULL; 1022 1023 /* 1024 * Get a request, allocate storage for the address list. 1025 */ 1026 if ((error = ciss_get_request(sc, &cr)) != 0) 1027 goto out; 1028 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1029 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1030 ciss_printf(sc, "can't allocate memory for lun report\n"); 1031 error = ENOMEM; 1032 goto out; 1033 } 1034 1035 /* 1036 * Build the Report Logical/Physical LUNs command. 1037 */ 1038 cc = CISS_FIND_COMMAND(cr); 1039 cr->cr_data = cll; 1040 cr->cr_length = report_size; 1041 cr->cr_flags = CISS_REQ_DATAIN; 1042 1043 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1044 cc->header.address.physical.bus = 0; 1045 cc->header.address.physical.target = 0; 1046 cc->cdb.cdb_length = sizeof(*crc); 1047 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1048 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1049 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1050 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1051 1052 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1053 bzero(crc, sizeof(*crc)); 1054 crc->opcode = opcode; 1055 crc->length = htonl(report_size); /* big-endian field */ 1056 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1057 1058 /* 1059 * Submit the request and wait for it to complete. (timeout 1060 * here should be much greater than above) 1061 */ 1062 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1063 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1064 goto out; 1065 } 1066 1067 /* 1068 * Check response. Note that data over/underrun is OK. 1069 */ 1070 ciss_report_request(cr, &command_status, NULL); 1071 switch(command_status) { 1072 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1073 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1074 break; 1075 case CISS_CMD_STATUS_DATA_OVERRUN: 1076 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1077 CISS_MAX_LOGICAL); 1078 break; 1079 default: 1080 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1081 ciss_name_command_status(command_status)); 1082 error = EIO; 1083 goto out; 1084 } 1085 ciss_release_request(cr); 1086 cr = NULL; 1087 1088 out: 1089 if (cr != NULL) 1090 ciss_release_request(cr); 1091 if (error && cll != NULL) { 1092 free(cll, CISS_MALLOC_CLASS); 1093 cll = NULL; 1094 } 1095 return(cll); 1096 } 1097 1098 /************************************************************************ 1099 * Find logical drives on the adapter. 1100 */ 1101 static int 1102 ciss_init_logical(struct ciss_softc *sc) 1103 { 1104 struct ciss_lun_report *cll; 1105 int error = 0, i, j; 1106 int ndrives; 1107 1108 debug_called(1); 1109 1110 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1111 CISS_MAX_LOGICAL); 1112 if (cll == NULL) { 1113 error = ENXIO; 1114 goto out; 1115 } 1116 1117 /* sanity-check reply */ 1118 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1119 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1120 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1121 ndrives, CISS_MAX_LOGICAL); 1122 error = ENXIO; 1123 goto out; 1124 } 1125 1126 /* 1127 * Save logical drive information. 1128 */ 1129 if (bootverbose) { 1130 ciss_printf(sc, "%d logical drive%s\n", 1131 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1132 } 1133 1134 sc->ciss_logical = 1135 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1136 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1137 if (sc->ciss_logical == NULL) { 1138 error = ENXIO; 1139 goto out; 1140 } 1141 1142 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1143 sc->ciss_logical[i] = 1144 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1145 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1146 if (sc->ciss_logical[i] == NULL) { 1147 error = ENXIO; 1148 goto out; 1149 } 1150 1151 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1152 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1153 } 1154 1155 1156 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1157 if (i < ndrives) { 1158 struct ciss_ldrive *ld; 1159 int bus, target; 1160 1161 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1162 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1163 ld = &sc->ciss_logical[bus][target]; 1164 1165 ld->cl_address = cll->lun[i]; 1166 ld->cl_controller = &sc->ciss_controllers[bus]; 1167 if (ciss_identify_logical(sc, ld) != 0) 1168 continue; 1169 /* 1170 * If the drive has had media exchanged, we should bring it online. 1171 */ 1172 if (ld->cl_lstatus->media_exchanged) 1173 ciss_accept_media(sc, ld); 1174 1175 } 1176 } 1177 1178 out: 1179 if (cll != NULL) 1180 free(cll, CISS_MALLOC_CLASS); 1181 return(error); 1182 } 1183 1184 static int 1185 ciss_init_physical(struct ciss_softc *sc) 1186 { 1187 struct ciss_lun_report *cll; 1188 int error = 0, i; 1189 int nphys; 1190 int bus, target; 1191 1192 debug_called(1); 1193 1194 bus = 0; 1195 target = 0; 1196 1197 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1198 CISS_MAX_PHYSICAL); 1199 if (cll == NULL) { 1200 error = ENXIO; 1201 goto out; 1202 } 1203 1204 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1205 1206 if (bootverbose) { 1207 ciss_printf(sc, "%d physical device%s\n", 1208 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1209 } 1210 1211 /* 1212 * Figure out the bus mapping. 1213 * Logical buses include both the local logical bus for local arrays and 1214 * proxy buses for remote arrays. Physical buses are numbered by the 1215 * controller and represent physical buses that hold physical devices. 1216 * We shift these bus numbers so that everything fits into a single flat 1217 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1218 * numbers, and the physical bus numbers are shifted to be above that. 1219 * This results in the various driver arrays being indexed as follows: 1220 * 1221 * ciss_controllers[] - indexed by logical bus 1222 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1223 * being shifted by 32. 1224 * ciss_logical[][] - indexed by logical bus 1225 * ciss_physical[][] - indexed by physical bus 1226 * 1227 * XXX This is getting more and more hackish. CISS really doesn't play 1228 * well with a standard SCSI model; devices are addressed via magic 1229 * cookies, not via b/t/l addresses. Since there is no way to store 1230 * the cookie in the CAM device object, we have to keep these lookup 1231 * tables handy so that the devices can be found quickly at the cost 1232 * of wasting memory and having a convoluted lookup scheme. This 1233 * driver should probably be converted to block interface. 1234 */ 1235 /* 1236 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1237 * controller. A proxy controller is another physical controller 1238 * behind the primary PCI controller. We need to know about this 1239 * so that BMIC commands can be properly targeted. There can be 1240 * proxy controllers attached to a single PCI controller, so 1241 * find the highest numbered one so the array can be properly 1242 * sized. 1243 */ 1244 sc->ciss_max_logical_bus = 1; 1245 for (i = 0; i < nphys; i++) { 1246 if (cll->lun[i].physical.extra_address == 0) { 1247 bus = cll->lun[i].physical.bus; 1248 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1249 } else { 1250 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1251 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1252 } 1253 } 1254 1255 sc->ciss_controllers = 1256 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1257 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1258 1259 if (sc->ciss_controllers == NULL) { 1260 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1261 error = ENOMEM; 1262 goto out; 1263 } 1264 1265 /* setup a map of controller addresses */ 1266 for (i = 0; i < nphys; i++) { 1267 if (cll->lun[i].physical.extra_address == 0) { 1268 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1269 } 1270 } 1271 1272 sc->ciss_physical = 1273 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1274 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1275 if (sc->ciss_physical == NULL) { 1276 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1277 error = ENOMEM; 1278 goto out; 1279 } 1280 1281 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1282 sc->ciss_physical[i] = 1283 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1284 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1285 if (sc->ciss_physical[i] == NULL) { 1286 ciss_printf(sc, "Could not allocate memory for target map\n"); 1287 error = ENOMEM; 1288 goto out; 1289 } 1290 } 1291 1292 ciss_filter_physical(sc, cll); 1293 1294 out: 1295 if (cll != NULL) 1296 free(cll, CISS_MALLOC_CLASS); 1297 1298 return(error); 1299 } 1300 1301 static int 1302 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1303 { 1304 u_int32_t ea; 1305 int i, nphys; 1306 int bus, target; 1307 1308 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1309 for (i = 0; i < nphys; i++) { 1310 if (cll->lun[i].physical.extra_address == 0) 1311 continue; 1312 1313 /* 1314 * Filter out devices that we don't want. Level 3 LUNs could 1315 * probably be supported, but the docs don't give enough of a 1316 * hint to know how. 1317 * 1318 * The mode field of the physical address is likely set to have 1319 * hard disks masked out. Honor it unless the user has overridden 1320 * us with the tunable. We also munge the inquiry data for these 1321 * disks so that they only show up as passthrough devices. Keeping 1322 * them visible in this fashion is useful for doing things like 1323 * flashing firmware. 1324 */ 1325 ea = cll->lun[i].physical.extra_address; 1326 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1327 (CISS_EXTRA_MODE2(ea) == 0x3)) 1328 continue; 1329 if ((ciss_expose_hidden_physical == 0) && 1330 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1331 continue; 1332 1333 /* 1334 * Note: CISS firmware numbers physical busses starting at '1', not 1335 * '0'. This numbering is internal to the firmware and is only 1336 * used as a hint here. 1337 */ 1338 bus = CISS_EXTRA_BUS2(ea) - 1; 1339 target = CISS_EXTRA_TARGET2(ea); 1340 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1341 sc->ciss_physical[bus][target].cp_online = 1; 1342 } 1343 1344 return (0); 1345 } 1346 1347 static int 1348 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1349 { 1350 struct ciss_request *cr; 1351 struct ciss_command *cc; 1352 struct scsi_inquiry *inq; 1353 int error; 1354 int command_status; 1355 1356 cr = NULL; 1357 1358 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1359 1360 if ((error = ciss_get_request(sc, &cr)) != 0) 1361 goto out; 1362 1363 cc = CISS_FIND_COMMAND(cr); 1364 cr->cr_data = &ld->cl_geometry; 1365 cr->cr_length = sizeof(ld->cl_geometry); 1366 cr->cr_flags = CISS_REQ_DATAIN; 1367 1368 cc->header.address = ld->cl_address; 1369 cc->cdb.cdb_length = 6; 1370 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1371 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1372 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1373 cc->cdb.timeout = 30; 1374 1375 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1376 inq->opcode = INQUIRY; 1377 inq->byte2 = SI_EVPD; 1378 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1379 inq->length = sizeof(ld->cl_geometry); 1380 1381 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1382 ciss_printf(sc, "error getting geometry (%d)\n", error); 1383 goto out; 1384 } 1385 1386 ciss_report_request(cr, &command_status, NULL); 1387 switch(command_status) { 1388 case CISS_CMD_STATUS_SUCCESS: 1389 case CISS_CMD_STATUS_DATA_UNDERRUN: 1390 break; 1391 case CISS_CMD_STATUS_DATA_OVERRUN: 1392 ciss_printf(sc, "WARNING: Data overrun\n"); 1393 break; 1394 default: 1395 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1396 ciss_name_command_status(command_status)); 1397 break; 1398 } 1399 1400 out: 1401 if (cr != NULL) 1402 ciss_release_request(cr); 1403 return(error); 1404 } 1405 /************************************************************************ 1406 * Identify a logical drive, initialise state related to it. 1407 */ 1408 static int 1409 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1410 { 1411 struct ciss_request *cr; 1412 struct ciss_command *cc; 1413 struct ciss_bmic_cdb *cbc; 1414 int error, command_status; 1415 1416 debug_called(1); 1417 1418 cr = NULL; 1419 1420 /* 1421 * Build a BMIC request to fetch the drive ID. 1422 */ 1423 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1424 (void **)&ld->cl_ldrive, 1425 sizeof(*ld->cl_ldrive))) != 0) 1426 goto out; 1427 cc = CISS_FIND_COMMAND(cr); 1428 cc->header.address = *ld->cl_controller; /* target controller */ 1429 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1430 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1431 1432 /* 1433 * Submit the request and wait for it to complete. 1434 */ 1435 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1436 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1437 goto out; 1438 } 1439 1440 /* 1441 * Check response. 1442 */ 1443 ciss_report_request(cr, &command_status, NULL); 1444 switch(command_status) { 1445 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1446 break; 1447 case CISS_CMD_STATUS_DATA_UNDERRUN: 1448 case CISS_CMD_STATUS_DATA_OVERRUN: 1449 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1450 default: 1451 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1452 ciss_name_command_status(command_status)); 1453 error = EIO; 1454 goto out; 1455 } 1456 ciss_release_request(cr); 1457 cr = NULL; 1458 1459 /* 1460 * Build a CISS BMIC command to get the logical drive status. 1461 */ 1462 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1463 goto out; 1464 1465 /* 1466 * Get the logical drive geometry. 1467 */ 1468 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1469 goto out; 1470 1471 /* 1472 * Print the drive's basic characteristics. 1473 */ 1474 if (bootverbose) { 1475 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1476 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1477 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1478 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1479 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1480 ld->cl_ldrive->block_size)); 1481 1482 ciss_print_ldrive(sc, ld); 1483 } 1484 out: 1485 if (error != 0) { 1486 /* make the drive not-exist */ 1487 ld->cl_status = CISS_LD_NONEXISTENT; 1488 if (ld->cl_ldrive != NULL) { 1489 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1490 ld->cl_ldrive = NULL; 1491 } 1492 if (ld->cl_lstatus != NULL) { 1493 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1494 ld->cl_lstatus = NULL; 1495 } 1496 } 1497 if (cr != NULL) 1498 ciss_release_request(cr); 1499 1500 return(error); 1501 } 1502 1503 /************************************************************************ 1504 * Get status for a logical drive. 1505 * 1506 * XXX should we also do this in response to Test Unit Ready? 1507 */ 1508 static int 1509 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1510 { 1511 struct ciss_request *cr; 1512 struct ciss_command *cc; 1513 struct ciss_bmic_cdb *cbc; 1514 int error, command_status; 1515 1516 /* 1517 * Build a CISS BMIC command to get the logical drive status. 1518 */ 1519 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1520 (void **)&ld->cl_lstatus, 1521 sizeof(*ld->cl_lstatus))) != 0) 1522 goto out; 1523 cc = CISS_FIND_COMMAND(cr); 1524 cc->header.address = *ld->cl_controller; /* target controller */ 1525 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1526 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1527 1528 /* 1529 * Submit the request and wait for it to complete. 1530 */ 1531 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1532 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1533 goto out; 1534 } 1535 1536 /* 1537 * Check response. 1538 */ 1539 ciss_report_request(cr, &command_status, NULL); 1540 switch(command_status) { 1541 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1542 break; 1543 case CISS_CMD_STATUS_DATA_UNDERRUN: 1544 case CISS_CMD_STATUS_DATA_OVERRUN: 1545 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1546 default: 1547 ciss_printf(sc, "error reading logical drive status (%s)\n", 1548 ciss_name_command_status(command_status)); 1549 error = EIO; 1550 goto out; 1551 } 1552 1553 /* 1554 * Set the drive's summary status based on the returned status. 1555 * 1556 * XXX testing shows that a failed JBOD drive comes back at next 1557 * boot in "queued for expansion" mode. WTF? 1558 */ 1559 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1560 1561 out: 1562 if (cr != NULL) 1563 ciss_release_request(cr); 1564 return(error); 1565 } 1566 1567 /************************************************************************ 1568 * Notify the adapter of a config update. 1569 */ 1570 static int 1571 ciss_update_config(struct ciss_softc *sc) 1572 { 1573 int i; 1574 1575 debug_called(1); 1576 1577 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1578 for (i = 0; i < 1000; i++) { 1579 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1580 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1581 return(0); 1582 } 1583 DELAY(1000); 1584 } 1585 return(1); 1586 } 1587 1588 /************************************************************************ 1589 * Accept new media into a logical drive. 1590 * 1591 * XXX The drive has previously been offline; it would be good if we 1592 * could make sure it's not open right now. 1593 */ 1594 static int 1595 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1596 { 1597 struct ciss_request *cr; 1598 struct ciss_command *cc; 1599 struct ciss_bmic_cdb *cbc; 1600 int command_status; 1601 int error = 0, ldrive; 1602 1603 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1604 1605 debug(0, "bringing logical drive %d back online"); 1606 1607 /* 1608 * Build a CISS BMIC command to bring the drive back online. 1609 */ 1610 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1611 NULL, 0)) != 0) 1612 goto out; 1613 cc = CISS_FIND_COMMAND(cr); 1614 cc->header.address = *ld->cl_controller; /* target controller */ 1615 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1616 cbc->log_drive = ldrive; 1617 1618 /* 1619 * Submit the request and wait for it to complete. 1620 */ 1621 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1622 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1623 goto out; 1624 } 1625 1626 /* 1627 * Check response. 1628 */ 1629 ciss_report_request(cr, &command_status, NULL); 1630 switch(command_status) { 1631 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1632 /* we should get a logical drive status changed event here */ 1633 break; 1634 default: 1635 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1636 ciss_name_command_status(command_status)); 1637 break; 1638 } 1639 1640 out: 1641 if (cr != NULL) 1642 ciss_release_request(cr); 1643 return(error); 1644 } 1645 1646 /************************************************************************ 1647 * Release adapter resources. 1648 */ 1649 static void 1650 ciss_free(struct ciss_softc *sc) 1651 { 1652 struct ciss_request *cr; 1653 int i, j; 1654 1655 debug_called(1); 1656 1657 /* we're going away */ 1658 sc->ciss_flags |= CISS_FLAG_ABORTING; 1659 1660 /* terminate the periodic heartbeat routine */ 1661 untimeout(ciss_periodic, sc, sc->ciss_periodic); 1662 1663 /* cancel the Event Notify chain */ 1664 ciss_notify_abort(sc); 1665 1666 ciss_kill_notify_thread(sc); 1667 1668 /* remove the control device */ 1669 if (sc->ciss_dev_t != NULL) 1670 destroy_dev(sc->ciss_dev_t); 1671 1672 /* free the controller data */ 1673 if (sc->ciss_id != NULL) 1674 free(sc->ciss_id, CISS_MALLOC_CLASS); 1675 1676 /* release I/O resources */ 1677 if (sc->ciss_regs_resource != NULL) 1678 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1679 sc->ciss_regs_rid, sc->ciss_regs_resource); 1680 if (sc->ciss_cfg_resource != NULL) 1681 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1682 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1683 if (sc->ciss_intr != NULL) 1684 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1685 if (sc->ciss_irq_resource != NULL) 1686 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1687 sc->ciss_irq_rid, sc->ciss_irq_resource); 1688 1689 /* destroy DMA tags */ 1690 if (sc->ciss_parent_dmat) 1691 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1692 1693 while ((cr = ciss_dequeue_free(sc)) != NULL) 1694 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1695 if (sc->ciss_buffer_dmat) 1696 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1697 1698 /* destroy command memory and DMA tag */ 1699 if (sc->ciss_command != NULL) { 1700 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1701 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1702 } 1703 if (sc->ciss_command_dmat) 1704 bus_dma_tag_destroy(sc->ciss_command_dmat); 1705 1706 /* disconnect from CAM */ 1707 if (sc->ciss_cam_sim) { 1708 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1709 if (sc->ciss_cam_sim[i]) { 1710 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1711 cam_sim_free(sc->ciss_cam_sim[i], 0); 1712 } 1713 } 1714 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1715 CISS_PHYSICAL_BASE; i++) { 1716 if (sc->ciss_cam_sim[i]) { 1717 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1718 cam_sim_free(sc->ciss_cam_sim[i], 0); 1719 } 1720 } 1721 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1722 } 1723 if (sc->ciss_cam_devq) 1724 cam_simq_free(sc->ciss_cam_devq); 1725 1726 if (sc->ciss_logical) { 1727 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1728 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1729 if (sc->ciss_logical[i][j].cl_ldrive) 1730 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1731 if (sc->ciss_logical[i][j].cl_lstatus) 1732 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1733 } 1734 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1735 } 1736 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1737 } 1738 1739 if (sc->ciss_physical) { 1740 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1741 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1742 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1743 } 1744 1745 if (sc->ciss_controllers) 1746 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1747 } 1748 1749 /************************************************************************ 1750 * Give a command to the adapter. 1751 * 1752 * Note that this uses the simple transport layer directly. If we 1753 * want to add support for other layers, we'll need a switch of some 1754 * sort. 1755 * 1756 * Note that the simple transport layer has no way of refusing a 1757 * command; we only have as many request structures as the adapter 1758 * supports commands, so we don't have to check (this presumes that 1759 * the adapter can handle commands as fast as we throw them at it). 1760 */ 1761 static int 1762 ciss_start(struct ciss_request *cr) 1763 { 1764 struct ciss_command *cc; /* XXX debugging only */ 1765 int error; 1766 1767 cc = CISS_FIND_COMMAND(cr); 1768 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1769 1770 /* 1771 * Map the request's data. 1772 */ 1773 if ((error = ciss_map_request(cr))) 1774 return(error); 1775 1776 #if 0 1777 ciss_print_request(cr); 1778 #endif 1779 1780 return(0); 1781 } 1782 1783 /************************************************************************ 1784 * Fetch completed request(s) from the adapter, queue them for 1785 * completion handling. 1786 * 1787 * Note that this uses the simple transport layer directly. If we 1788 * want to add support for other layers, we'll need a switch of some 1789 * sort. 1790 * 1791 * Note that the simple transport mechanism does not require any 1792 * reentrancy protection; the OPQ read is atomic. If there is a 1793 * chance of a race with something else that might move the request 1794 * off the busy list, then we will have to lock against that 1795 * (eg. timeouts, etc.) 1796 */ 1797 static void 1798 ciss_done(struct ciss_softc *sc) 1799 { 1800 struct ciss_request *cr; 1801 struct ciss_command *cc; 1802 u_int32_t tag, index; 1803 int complete; 1804 1805 debug_called(3); 1806 1807 /* 1808 * Loop quickly taking requests from the adapter and moving them 1809 * from the busy queue to the completed queue. 1810 */ 1811 complete = 0; 1812 for (;;) { 1813 1814 /* see if the OPQ contains anything */ 1815 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1816 break; 1817 1818 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1819 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1820 break; 1821 index = tag >> 2; 1822 debug(2, "completed command %d%s", index, 1823 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1824 if (index >= sc->ciss_max_requests) { 1825 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1826 continue; 1827 } 1828 cr = &(sc->ciss_request[index]); 1829 cc = CISS_FIND_COMMAND(cr); 1830 cc->header.host_tag = tag; /* not updated by adapter */ 1831 if (ciss_remove_busy(cr)) { 1832 /* assume this is garbage out of the adapter */ 1833 ciss_printf(sc, "completed nonbusy request %d\n", index); 1834 } else { 1835 ciss_enqueue_complete(cr); 1836 } 1837 complete = 1; 1838 } 1839 1840 /* 1841 * Invoke completion processing. If we can defer this out of 1842 * interrupt context, that'd be good. 1843 */ 1844 if (complete) 1845 ciss_complete(sc); 1846 } 1847 1848 /************************************************************************ 1849 * Take an interrupt from the adapter. 1850 */ 1851 static void 1852 ciss_intr(void *arg) 1853 { 1854 struct ciss_softc *sc = (struct ciss_softc *)arg; 1855 1856 /* 1857 * The only interrupt we recognise indicates that there are 1858 * entries in the outbound post queue. 1859 */ 1860 ciss_done(sc); 1861 } 1862 1863 /************************************************************************ 1864 * Process completed requests. 1865 * 1866 * Requests can be completed in three fashions: 1867 * 1868 * - by invoking a callback function (cr_complete is non-null) 1869 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1870 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1871 */ 1872 static void 1873 ciss_complete(struct ciss_softc *sc) 1874 { 1875 struct ciss_request *cr; 1876 1877 debug_called(2); 1878 1879 /* 1880 * Loop taking requests off the completed queue and performing 1881 * completion processing on them. 1882 */ 1883 for (;;) { 1884 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1885 break; 1886 ciss_unmap_request(cr); 1887 1888 /* 1889 * If the request has a callback, invoke it. 1890 */ 1891 if (cr->cr_complete != NULL) { 1892 cr->cr_complete(cr); 1893 continue; 1894 } 1895 1896 /* 1897 * If someone is sleeping on this request, wake them up. 1898 */ 1899 if (cr->cr_flags & CISS_REQ_SLEEP) { 1900 cr->cr_flags &= ~CISS_REQ_SLEEP; 1901 wakeup(cr); 1902 continue; 1903 } 1904 1905 /* 1906 * If someone is polling this request for completion, signal. 1907 */ 1908 if (cr->cr_flags & CISS_REQ_POLL) { 1909 cr->cr_flags &= ~CISS_REQ_POLL; 1910 continue; 1911 } 1912 1913 /* 1914 * Give up and throw the request back on the free queue. This 1915 * should never happen; resources will probably be lost. 1916 */ 1917 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1918 ciss_enqueue_free(cr); 1919 } 1920 } 1921 1922 /************************************************************************ 1923 * Report on the completion status of a request, and pass back SCSI 1924 * and command status values. 1925 */ 1926 static int 1927 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1928 { 1929 struct ciss_command *cc; 1930 struct ciss_error_info *ce; 1931 1932 debug_called(2); 1933 1934 cc = CISS_FIND_COMMAND(cr); 1935 ce = (struct ciss_error_info *)&(cc->sg[0]); 1936 1937 /* 1938 * We don't consider data under/overrun an error for the Report 1939 * Logical/Physical LUNs commands. 1940 */ 1941 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1942 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 1943 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 1944 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1945 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 1946 (cc->cdb.cdb[0] == INQUIRY))) { 1947 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1948 debug(2, "ignoring irrelevant under/overrun error"); 1949 } 1950 1951 /* 1952 * Check the command's error bit, if clear, there's no status and 1953 * everything is OK. 1954 */ 1955 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1956 if (scsi_status != NULL) 1957 *scsi_status = SCSI_STATUS_OK; 1958 if (command_status != NULL) 1959 *command_status = CISS_CMD_STATUS_SUCCESS; 1960 return(0); 1961 } else { 1962 if (command_status != NULL) 1963 *command_status = ce->command_status; 1964 if (scsi_status != NULL) { 1965 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1966 *scsi_status = ce->scsi_status; 1967 } else { 1968 *scsi_status = -1; 1969 } 1970 } 1971 if (bootverbose) 1972 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1973 ce->command_status, ciss_name_command_status(ce->command_status), 1974 ce->scsi_status); 1975 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1976 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1977 ce->additional_error_info.invalid_command.offense_size, 1978 ce->additional_error_info.invalid_command.offense_offset, 1979 ce->additional_error_info.invalid_command.offense_value); 1980 } 1981 } 1982 #if 0 1983 ciss_print_request(cr); 1984 #endif 1985 return(1); 1986 } 1987 1988 /************************************************************************ 1989 * Issue a request and don't return until it's completed. 1990 * 1991 * Depending on adapter status, we may poll or sleep waiting for 1992 * completion. 1993 */ 1994 static int 1995 ciss_synch_request(struct ciss_request *cr, int timeout) 1996 { 1997 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1998 return(ciss_wait_request(cr, timeout)); 1999 } else { 2000 return(ciss_poll_request(cr, timeout)); 2001 } 2002 } 2003 2004 /************************************************************************ 2005 * Issue a request and poll for completion. 2006 * 2007 * Timeout in milliseconds. 2008 */ 2009 static int 2010 ciss_poll_request(struct ciss_request *cr, int timeout) 2011 { 2012 int error; 2013 2014 debug_called(2); 2015 2016 cr->cr_flags |= CISS_REQ_POLL; 2017 if ((error = ciss_start(cr)) != 0) 2018 return(error); 2019 2020 do { 2021 ciss_done(cr->cr_sc); 2022 if (!(cr->cr_flags & CISS_REQ_POLL)) 2023 return(0); 2024 DELAY(1000); 2025 } while (timeout-- >= 0); 2026 return(EWOULDBLOCK); 2027 } 2028 2029 /************************************************************************ 2030 * Issue a request and sleep waiting for completion. 2031 * 2032 * Timeout in milliseconds. Note that a spurious wakeup will reset 2033 * the timeout. 2034 */ 2035 static int 2036 ciss_wait_request(struct ciss_request *cr, int timeout) 2037 { 2038 int s, error; 2039 2040 debug_called(2); 2041 2042 cr->cr_flags |= CISS_REQ_SLEEP; 2043 if ((error = ciss_start(cr)) != 0) 2044 return(error); 2045 2046 s = splcam(); 2047 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2048 error = tsleep(cr, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2049 } 2050 splx(s); 2051 return(error); 2052 } 2053 2054 #if 0 2055 /************************************************************************ 2056 * Abort a request. Note that a potential exists here to race the 2057 * request being completed; the caller must deal with this. 2058 */ 2059 static int 2060 ciss_abort_request(struct ciss_request *ar) 2061 { 2062 struct ciss_request *cr; 2063 struct ciss_command *cc; 2064 struct ciss_message_cdb *cmc; 2065 int error; 2066 2067 debug_called(1); 2068 2069 /* get a request */ 2070 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2071 return(error); 2072 2073 /* build the abort command */ 2074 cc = CISS_FIND_COMMAND(cr); 2075 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2076 cc->header.address.physical.target = 0; 2077 cc->header.address.physical.bus = 0; 2078 cc->cdb.cdb_length = sizeof(*cmc); 2079 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2080 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2081 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2082 cc->cdb.timeout = 30; 2083 2084 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2085 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2086 cmc->type = CISS_MESSAGE_ABORT_TASK; 2087 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2088 2089 /* 2090 * Send the request and wait for a response. If we believe we 2091 * aborted the request OK, clear the flag that indicates it's 2092 * running. 2093 */ 2094 error = ciss_synch_request(cr, 35 * 1000); 2095 if (!error) 2096 error = ciss_report_request(cr, NULL, NULL); 2097 ciss_release_request(cr); 2098 2099 return(error); 2100 } 2101 #endif 2102 2103 2104 /************************************************************************ 2105 * Fetch and initialise a request 2106 */ 2107 static int 2108 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2109 { 2110 struct ciss_request *cr; 2111 2112 debug_called(2); 2113 2114 /* 2115 * Get a request and clean it up. 2116 */ 2117 if ((cr = ciss_dequeue_free(sc)) == NULL) 2118 return(ENOMEM); 2119 2120 cr->cr_data = NULL; 2121 cr->cr_flags = 0; 2122 cr->cr_complete = NULL; 2123 cr->cr_private = NULL; 2124 2125 ciss_preen_command(cr); 2126 *crp = cr; 2127 return(0); 2128 } 2129 2130 static void 2131 ciss_preen_command(struct ciss_request *cr) 2132 { 2133 struct ciss_command *cc; 2134 u_int32_t cmdphys; 2135 2136 /* 2137 * Clean up the command structure. 2138 * 2139 * Note that we set up the error_info structure here, since the 2140 * length can be overwritten by any command. 2141 */ 2142 cc = CISS_FIND_COMMAND(cr); 2143 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2144 cc->header.sg_total = 0; 2145 cc->header.host_tag = cr->cr_tag << 2; 2146 cc->header.host_tag_zeroes = 0; 2147 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2148 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2149 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2150 } 2151 2152 /************************************************************************ 2153 * Release a request to the free list. 2154 */ 2155 static void 2156 ciss_release_request(struct ciss_request *cr) 2157 { 2158 struct ciss_softc *sc; 2159 2160 debug_called(2); 2161 2162 sc = cr->cr_sc; 2163 2164 /* release the request to the free queue */ 2165 ciss_requeue_free(cr); 2166 } 2167 2168 /************************************************************************ 2169 * Allocate a request that will be used to send a BMIC command. Do some 2170 * of the common setup here to avoid duplicating it everywhere else. 2171 */ 2172 static int 2173 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2174 int opcode, void **bufp, size_t bufsize) 2175 { 2176 struct ciss_request *cr; 2177 struct ciss_command *cc; 2178 struct ciss_bmic_cdb *cbc; 2179 void *buf; 2180 int error; 2181 int dataout; 2182 2183 debug_called(2); 2184 2185 cr = NULL; 2186 buf = NULL; 2187 2188 /* 2189 * Get a request. 2190 */ 2191 if ((error = ciss_get_request(sc, &cr)) != 0) 2192 goto out; 2193 2194 /* 2195 * Allocate data storage if requested, determine the data direction. 2196 */ 2197 dataout = 0; 2198 if ((bufsize > 0) && (bufp != NULL)) { 2199 if (*bufp == NULL) { 2200 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2201 error = ENOMEM; 2202 goto out; 2203 } 2204 } else { 2205 buf = *bufp; 2206 dataout = 1; /* we are given a buffer, so we are writing */ 2207 } 2208 } 2209 2210 /* 2211 * Build a CISS BMIC command to get the logical drive ID. 2212 */ 2213 cr->cr_data = buf; 2214 cr->cr_length = bufsize; 2215 if (!dataout) 2216 cr->cr_flags = CISS_REQ_DATAIN; 2217 2218 cc = CISS_FIND_COMMAND(cr); 2219 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2220 cc->header.address.physical.bus = 0; 2221 cc->header.address.physical.target = 0; 2222 cc->cdb.cdb_length = sizeof(*cbc); 2223 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2224 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2225 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2226 cc->cdb.timeout = 0; 2227 2228 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2229 bzero(cbc, sizeof(*cbc)); 2230 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2231 cbc->bmic_opcode = opcode; 2232 cbc->size = htons((u_int16_t)bufsize); 2233 2234 out: 2235 if (error) { 2236 if (cr != NULL) 2237 ciss_release_request(cr); 2238 } else { 2239 *crp = cr; 2240 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2241 *bufp = buf; 2242 } 2243 return(error); 2244 } 2245 2246 /************************************************************************ 2247 * Handle a command passed in from userspace. 2248 */ 2249 static int 2250 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2251 { 2252 struct ciss_request *cr; 2253 struct ciss_command *cc; 2254 struct ciss_error_info *ce; 2255 int error = 0; 2256 2257 debug_called(1); 2258 2259 cr = NULL; 2260 2261 /* 2262 * Get a request. 2263 */ 2264 while (ciss_get_request(sc, &cr) != 0) 2265 tsleep(sc, PPAUSE, "cissREQ", hz); 2266 cc = CISS_FIND_COMMAND(cr); 2267 2268 /* 2269 * Allocate an in-kernel databuffer if required, copy in user data. 2270 */ 2271 cr->cr_length = ioc->buf_size; 2272 if (ioc->buf_size > 0) { 2273 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) { 2274 error = ENOMEM; 2275 goto out; 2276 } 2277 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2278 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2279 goto out; 2280 } 2281 } 2282 2283 /* 2284 * Build the request based on the user command. 2285 */ 2286 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2287 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2288 2289 /* XXX anything else to populate here? */ 2290 2291 /* 2292 * Run the command. 2293 */ 2294 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2295 debug(0, "request failed - %d", error); 2296 goto out; 2297 } 2298 2299 /* 2300 * Check to see if the command succeeded. 2301 */ 2302 ce = (struct ciss_error_info *)&(cc->sg[0]); 2303 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2304 bzero(ce, sizeof(*ce)); 2305 2306 /* 2307 * Copy the results back to the user. 2308 */ 2309 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2310 if ((ioc->buf_size > 0) && 2311 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2312 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2313 goto out; 2314 } 2315 2316 /* done OK */ 2317 error = 0; 2318 2319 out: 2320 if ((cr != NULL) && (cr->cr_data != NULL)) 2321 free(cr->cr_data, CISS_MALLOC_CLASS); 2322 if (cr != NULL) 2323 ciss_release_request(cr); 2324 return(error); 2325 } 2326 2327 /************************************************************************ 2328 * Map a request into bus-visible space, initialise the scatter/gather 2329 * list. 2330 */ 2331 static int 2332 ciss_map_request(struct ciss_request *cr) 2333 { 2334 struct ciss_softc *sc; 2335 int error = 0; 2336 2337 debug_called(2); 2338 2339 sc = cr->cr_sc; 2340 2341 /* check that mapping is necessary */ 2342 if (cr->cr_flags & CISS_REQ_MAPPED) 2343 return(0); 2344 2345 cr->cr_flags |= CISS_REQ_MAPPED; 2346 2347 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2348 BUS_DMASYNC_PREWRITE); 2349 2350 if (cr->cr_data != NULL) { 2351 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2352 cr->cr_data, cr->cr_length, 2353 ciss_request_map_helper, cr, 0); 2354 if (error != 0) 2355 return (error); 2356 } else { 2357 /* 2358 * Post the command to the adapter. 2359 */ 2360 ciss_enqueue_busy(cr); 2361 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2362 } 2363 2364 return(0); 2365 } 2366 2367 static void 2368 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2369 { 2370 struct ciss_command *cc; 2371 struct ciss_request *cr; 2372 struct ciss_softc *sc; 2373 int i; 2374 2375 debug_called(2); 2376 2377 cr = (struct ciss_request *)arg; 2378 sc = cr->cr_sc; 2379 cc = CISS_FIND_COMMAND(cr); 2380 2381 for (i = 0; i < nseg; i++) { 2382 cc->sg[i].address = segs[i].ds_addr; 2383 cc->sg[i].length = segs[i].ds_len; 2384 cc->sg[i].extension = 0; 2385 } 2386 /* we leave the s/g table entirely within the command */ 2387 cc->header.sg_in_list = nseg; 2388 cc->header.sg_total = nseg; 2389 2390 if (cr->cr_flags & CISS_REQ_DATAIN) 2391 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2392 if (cr->cr_flags & CISS_REQ_DATAOUT) 2393 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2394 2395 /* 2396 * Post the command to the adapter. 2397 */ 2398 ciss_enqueue_busy(cr); 2399 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2400 } 2401 2402 /************************************************************************ 2403 * Unmap a request from bus-visible space. 2404 */ 2405 static void 2406 ciss_unmap_request(struct ciss_request *cr) 2407 { 2408 struct ciss_softc *sc; 2409 2410 debug_called(2); 2411 2412 sc = cr->cr_sc; 2413 2414 /* check that unmapping is necessary */ 2415 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2416 return; 2417 2418 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2419 BUS_DMASYNC_POSTWRITE); 2420 2421 if (cr->cr_data == NULL) 2422 goto out; 2423 2424 if (cr->cr_flags & CISS_REQ_DATAIN) 2425 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2426 if (cr->cr_flags & CISS_REQ_DATAOUT) 2427 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2428 2429 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2430 out: 2431 cr->cr_flags &= ~CISS_REQ_MAPPED; 2432 } 2433 2434 /************************************************************************ 2435 * Attach the driver to CAM. 2436 * 2437 * We put all the logical drives on a single SCSI bus. 2438 */ 2439 static int 2440 ciss_cam_init(struct ciss_softc *sc) 2441 { 2442 int i, maxbus; 2443 2444 debug_called(1); 2445 2446 /* 2447 * Allocate a devq. We can reuse this for the masked physical 2448 * devices if we decide to export these as well. 2449 */ 2450 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2451 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2452 return(ENOMEM); 2453 } 2454 2455 /* 2456 * Create a SIM. 2457 * 2458 * This naturally wastes a bit of memory. The alternative is to allocate 2459 * and register each bus as it is found, and then track them on a linked 2460 * list. Unfortunately, the driver has a few places where it needs to 2461 * look up the SIM based solely on bus number, and it's unclear whether 2462 * a list traversal would work for these situations. 2463 */ 2464 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2465 CISS_PHYSICAL_BASE); 2466 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2467 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2468 if (sc->ciss_cam_sim == NULL) { 2469 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2470 return(ENOMEM); 2471 } 2472 2473 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2474 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2475 "ciss", sc, 2476 device_get_unit(sc->ciss_dev), 2477 sc->ciss_max_requests - 2, 2478 1, 2479 sc->ciss_cam_devq)) == NULL) { 2480 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2481 return(ENOMEM); 2482 } 2483 2484 /* 2485 * Register bus with this SIM. 2486 */ 2487 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2488 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2489 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2490 return (ENXIO); 2491 } 2492 } 2493 } 2494 2495 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2496 CISS_PHYSICAL_BASE; i++) { 2497 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2498 "ciss", sc, 2499 device_get_unit(sc->ciss_dev), 2500 sc->ciss_max_requests - 2, 2501 1, 2502 sc->ciss_cam_devq)) == NULL) { 2503 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2504 return (ENOMEM); 2505 } 2506 2507 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2508 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2509 return (ENXIO); 2510 } 2511 } 2512 2513 /* 2514 * Initiate a rescan of the bus. 2515 */ 2516 ciss_cam_rescan_all(sc); 2517 2518 return(0); 2519 } 2520 2521 /************************************************************************ 2522 * Initiate a rescan of the 'logical devices' SIM 2523 */ 2524 static void 2525 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2526 { 2527 struct cam_path *path; 2528 union ccb *ccb; 2529 2530 debug_called(1); 2531 2532 if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) { 2533 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2534 return; 2535 } 2536 2537 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2538 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2539 ciss_printf(sc, "rescan failed (can't create path)\n"); 2540 free(ccb, M_TEMP); 2541 return; 2542 } 2543 2544 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2545 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2546 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2547 ccb->crcn.flags = CAM_FLAG_NONE; 2548 xpt_action(ccb); 2549 2550 /* scan is now in progress */ 2551 } 2552 2553 static void 2554 ciss_cam_rescan_all(struct ciss_softc *sc) 2555 { 2556 int i; 2557 2558 /* Rescan the logical buses */ 2559 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2560 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2561 /* Rescan the physical buses */ 2562 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2563 CISS_PHYSICAL_BASE; i++) 2564 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2565 } 2566 2567 static void 2568 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2569 { 2570 xpt_free_path(ccb->ccb_h.path); 2571 free(ccb, M_TEMP); 2572 } 2573 2574 /************************************************************************ 2575 * Handle requests coming from CAM 2576 */ 2577 static void 2578 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2579 { 2580 struct ciss_softc *sc; 2581 struct ccb_scsiio *csio; 2582 int bus, target; 2583 int physical; 2584 2585 sc = cam_sim_softc(sim); 2586 bus = cam_sim_bus(sim); 2587 csio = (struct ccb_scsiio *)&ccb->csio; 2588 target = csio->ccb_h.target_id; 2589 physical = CISS_IS_PHYSICAL(bus); 2590 2591 switch (ccb->ccb_h.func_code) { 2592 2593 /* perform SCSI I/O */ 2594 case XPT_SCSI_IO: 2595 if (!ciss_cam_action_io(sim, csio)) 2596 return; 2597 break; 2598 2599 /* perform geometry calculations */ 2600 case XPT_CALC_GEOMETRY: 2601 { 2602 struct ccb_calc_geometry *ccg = &ccb->ccg; 2603 struct ciss_ldrive *ld; 2604 2605 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2606 2607 ld = NULL; 2608 if (!physical) 2609 ld = &sc->ciss_logical[bus][target]; 2610 2611 /* 2612 * Use the cached geometry settings unless the fault tolerance 2613 * is invalid. 2614 */ 2615 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2616 u_int32_t secs_per_cylinder; 2617 2618 ccg->heads = 255; 2619 ccg->secs_per_track = 32; 2620 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2621 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2622 } else { 2623 ccg->heads = ld->cl_geometry.heads; 2624 ccg->secs_per_track = ld->cl_geometry.sectors; 2625 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2626 } 2627 ccb->ccb_h.status = CAM_REQ_CMP; 2628 break; 2629 } 2630 2631 /* handle path attribute inquiry */ 2632 case XPT_PATH_INQ: 2633 { 2634 struct ccb_pathinq *cpi = &ccb->cpi; 2635 2636 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2637 2638 cpi->version_num = 1; 2639 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2640 cpi->target_sprt = 0; 2641 cpi->hba_misc = 0; 2642 cpi->max_target = CISS_MAX_LOGICAL; 2643 cpi->max_lun = 0; /* 'logical drive' channel only */ 2644 cpi->initiator_id = CISS_MAX_LOGICAL; 2645 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2646 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2647 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2648 cpi->unit_number = cam_sim_unit(sim); 2649 cpi->bus_id = cam_sim_bus(sim); 2650 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2651 cpi->transport = XPORT_SPI; 2652 cpi->transport_version = 2; 2653 cpi->protocol = PROTO_SCSI; 2654 cpi->protocol_version = SCSI_REV_2; 2655 ccb->ccb_h.status = CAM_REQ_CMP; 2656 break; 2657 } 2658 2659 case XPT_GET_TRAN_SETTINGS: 2660 { 2661 struct ccb_trans_settings *cts = &ccb->cts; 2662 int bus, target; 2663 struct ccb_trans_settings_spi *spi = 2664 &cts->xport_specific.spi; 2665 2666 bus = cam_sim_bus(sim); 2667 target = cts->ccb_h.target_id; 2668 2669 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2670 /* disconnect always OK */ 2671 cts->protocol = PROTO_SCSI; 2672 cts->protocol_version = SCSI_REV_2; 2673 cts->transport = XPORT_SPI; 2674 cts->transport_version = 2; 2675 2676 spi->valid = CTS_SPI_VALID_DISC; 2677 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2678 2679 cts->ccb_h.status = CAM_REQ_CMP; 2680 break; 2681 } 2682 2683 default: /* we can't do this */ 2684 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 2685 ccb->ccb_h.status = CAM_REQ_INVALID; 2686 break; 2687 } 2688 2689 xpt_done(ccb); 2690 } 2691 2692 /************************************************************************ 2693 * Handle a CAM SCSI I/O request. 2694 */ 2695 static int 2696 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2697 { 2698 struct ciss_softc *sc; 2699 int bus, target; 2700 struct ciss_request *cr; 2701 struct ciss_command *cc; 2702 int error; 2703 2704 sc = cam_sim_softc(sim); 2705 bus = cam_sim_bus(sim); 2706 target = csio->ccb_h.target_id; 2707 2708 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2709 2710 /* firmware does not support commands > 10 bytes */ 2711 if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) { 2712 debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE); 2713 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2714 } 2715 2716 /* check that the CDB pointer is not to a physical address */ 2717 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2718 debug(3, " CDB pointer is to physical address"); 2719 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2720 } 2721 2722 /* if there is data transfer, it must be to/from a virtual address */ 2723 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2724 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2725 debug(3, " data pointer is to physical address"); 2726 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2727 } 2728 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2729 debug(3, " data has premature s/g setup"); 2730 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2731 } 2732 } 2733 2734 /* abandon aborted ccbs or those that have failed validation */ 2735 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2736 debug(3, "abandoning CCB due to abort/validation failure"); 2737 return(EINVAL); 2738 } 2739 2740 /* handle emulation of some SCSI commands ourself */ 2741 if (ciss_cam_emulate(sc, csio)) 2742 return(0); 2743 2744 /* 2745 * Get a request to manage this command. If we can't, return the 2746 * ccb, freeze the queue and flag so that we unfreeze it when a 2747 * request completes. 2748 */ 2749 if ((error = ciss_get_request(sc, &cr)) != 0) { 2750 xpt_freeze_simq(sim, 1); 2751 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2752 return(error); 2753 } 2754 2755 /* 2756 * Build the command. 2757 */ 2758 cc = CISS_FIND_COMMAND(cr); 2759 cr->cr_data = csio->data_ptr; 2760 cr->cr_length = csio->dxfer_len; 2761 cr->cr_complete = ciss_cam_complete; 2762 cr->cr_private = csio; 2763 2764 /* 2765 * Target the right logical volume. 2766 */ 2767 if (CISS_IS_PHYSICAL(bus)) 2768 cc->header.address = 2769 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2770 else 2771 cc->header.address = 2772 sc->ciss_logical[bus][target].cl_address; 2773 cc->cdb.cdb_length = csio->cdb_len; 2774 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2775 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2776 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2777 cr->cr_flags = CISS_REQ_DATAOUT; 2778 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2779 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2780 cr->cr_flags = CISS_REQ_DATAIN; 2781 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2782 } else { 2783 cr->cr_flags = 0; 2784 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2785 } 2786 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2787 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2788 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2789 } else { 2790 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2791 } 2792 2793 /* 2794 * Submit the request to the adapter. 2795 * 2796 * Note that this may fail if we're unable to map the request (and 2797 * if we ever learn a transport layer other than simple, may fail 2798 * if the adapter rejects the command). 2799 */ 2800 if ((error = ciss_start(cr)) != 0) { 2801 xpt_freeze_simq(sim, 1); 2802 if (error == EINPROGRESS) { 2803 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2804 error = 0; 2805 } else { 2806 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2807 ciss_release_request(cr); 2808 } 2809 return(error); 2810 } 2811 2812 return(0); 2813 } 2814 2815 /************************************************************************ 2816 * Emulate SCSI commands the adapter doesn't handle as we might like. 2817 */ 2818 static int 2819 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2820 { 2821 int bus, target; 2822 u_int8_t opcode; 2823 2824 target = csio->ccb_h.target_id; 2825 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2826 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2827 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2828 2829 if (CISS_IS_PHYSICAL(bus)) { 2830 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2831 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2832 xpt_done((union ccb *)csio); 2833 return(1); 2834 } else 2835 return(0); 2836 } 2837 2838 /* 2839 * Handle requests for volumes that don't exist or are not online. 2840 * A selection timeout is slightly better than an illegal request. 2841 * Other errors might be better. 2842 */ 2843 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2844 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2845 xpt_done((union ccb *)csio); 2846 return(1); 2847 } 2848 2849 /* if we have to fake Synchronise Cache */ 2850 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2851 /* 2852 * If this is a Synchronise Cache command, typically issued when 2853 * a device is closed, flush the adapter and complete now. 2854 */ 2855 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2856 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2857 ciss_flush_adapter(sc); 2858 csio->ccb_h.status = CAM_REQ_CMP; 2859 xpt_done((union ccb *)csio); 2860 return(1); 2861 } 2862 } 2863 2864 return(0); 2865 } 2866 2867 /************************************************************************ 2868 * Check for possibly-completed commands. 2869 */ 2870 static void 2871 ciss_cam_poll(struct cam_sim *sim) 2872 { 2873 struct ciss_softc *sc = cam_sim_softc(sim); 2874 2875 debug_called(2); 2876 2877 ciss_done(sc); 2878 } 2879 2880 /************************************************************************ 2881 * Handle completion of a command - pass results back through the CCB 2882 */ 2883 static void 2884 ciss_cam_complete(struct ciss_request *cr) 2885 { 2886 struct ciss_softc *sc; 2887 struct ciss_command *cc; 2888 struct ciss_error_info *ce; 2889 struct ccb_scsiio *csio; 2890 int scsi_status; 2891 int command_status; 2892 2893 debug_called(2); 2894 2895 sc = cr->cr_sc; 2896 cc = CISS_FIND_COMMAND(cr); 2897 ce = (struct ciss_error_info *)&(cc->sg[0]); 2898 csio = (struct ccb_scsiio *)cr->cr_private; 2899 2900 /* 2901 * Extract status values from request. 2902 */ 2903 ciss_report_request(cr, &command_status, &scsi_status); 2904 csio->scsi_status = scsi_status; 2905 2906 /* 2907 * Handle specific SCSI status values. 2908 */ 2909 switch(scsi_status) { 2910 /* no status due to adapter error */ 2911 case -1: 2912 debug(0, "adapter error"); 2913 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2914 break; 2915 2916 /* no status due to command completed OK */ 2917 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2918 debug(2, "SCSI_STATUS_OK"); 2919 csio->ccb_h.status = CAM_REQ_CMP; 2920 break; 2921 2922 /* check condition, sense data included */ 2923 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2924 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2925 ce->sense_length, ce->residual_count); 2926 bzero(&csio->sense_data, SSD_FULL_SIZE); 2927 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2928 csio->sense_len = ce->sense_length; 2929 csio->resid = ce->residual_count; 2930 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2931 #ifdef CISS_DEBUG 2932 { 2933 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2934 debug(0, "sense key %x", sns->flags & SSD_KEY); 2935 } 2936 #endif 2937 break; 2938 2939 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2940 debug(0, "SCSI_STATUS_BUSY"); 2941 csio->ccb_h.status = CAM_SCSI_BUSY; 2942 break; 2943 2944 default: 2945 debug(0, "unknown status 0x%x", csio->scsi_status); 2946 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2947 break; 2948 } 2949 2950 /* handle post-command fixup */ 2951 ciss_cam_complete_fixup(sc, csio); 2952 2953 /* tell CAM we're ready for more commands */ 2954 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2955 2956 xpt_done((union ccb *)csio); 2957 ciss_release_request(cr); 2958 } 2959 2960 /******************************************************************************** 2961 * Fix up the result of some commands here. 2962 */ 2963 static void 2964 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2965 { 2966 struct scsi_inquiry_data *inq; 2967 struct ciss_ldrive *cl; 2968 int bus, target; 2969 2970 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2971 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2972 2973 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2974 target = csio->ccb_h.target_id; 2975 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2976 2977 /* 2978 * Don't let hard drives be seen by the DA driver. They will still be 2979 * attached by the PASS driver. 2980 */ 2981 if (CISS_IS_PHYSICAL(bus)) { 2982 if (SID_TYPE(inq) == T_DIRECT) 2983 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2984 return; 2985 } 2986 2987 cl = &sc->ciss_logical[bus][target]; 2988 2989 padstr(inq->vendor, "COMPAQ", 8); 2990 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2991 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2992 } 2993 } 2994 2995 2996 /******************************************************************************** 2997 * Find a peripheral attached at (target) 2998 */ 2999 static struct cam_periph * 3000 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3001 { 3002 struct cam_periph *periph; 3003 struct cam_path *path; 3004 int status; 3005 3006 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3007 target, 0); 3008 if (status == CAM_REQ_CMP) { 3009 periph = cam_periph_find(path, NULL); 3010 xpt_free_path(path); 3011 } else { 3012 periph = NULL; 3013 } 3014 return(periph); 3015 } 3016 3017 /******************************************************************************** 3018 * Name the device at (target) 3019 * 3020 * XXX is this strictly correct? 3021 */ 3022 static int 3023 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3024 { 3025 struct cam_periph *periph; 3026 3027 if (CISS_IS_PHYSICAL(bus)) 3028 return (0); 3029 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3030 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3031 periph->periph_name, periph->unit_number); 3032 return(0); 3033 } 3034 sc->ciss_logical[bus][target].cl_name[0] = 0; 3035 return(ENOENT); 3036 } 3037 3038 /************************************************************************ 3039 * Periodic status monitoring. 3040 */ 3041 static void 3042 ciss_periodic(void *arg) 3043 { 3044 struct ciss_softc *sc; 3045 3046 debug_called(1); 3047 3048 sc = (struct ciss_softc *)arg; 3049 3050 /* 3051 * Check the adapter heartbeat. 3052 */ 3053 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3054 sc->ciss_heart_attack++; 3055 debug(0, "adapter heart attack in progress 0x%x/%d", 3056 sc->ciss_heartbeat, sc->ciss_heart_attack); 3057 if (sc->ciss_heart_attack == 3) { 3058 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3059 /* XXX should reset adapter here */ 3060 } 3061 } else { 3062 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3063 sc->ciss_heart_attack = 0; 3064 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3065 } 3066 3067 /* 3068 * If the notify event request has died for some reason, or has 3069 * not started yet, restart it. 3070 */ 3071 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3072 debug(0, "(re)starting Event Notify chain"); 3073 ciss_notify_event(sc); 3074 } 3075 3076 /* 3077 * Reschedule. 3078 */ 3079 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 3080 sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz); 3081 } 3082 3083 /************************************************************************ 3084 * Request a notification response from the adapter. 3085 * 3086 * If (cr) is NULL, this is the first request of the adapter, so 3087 * reset the adapter's message pointer and start with the oldest 3088 * message available. 3089 */ 3090 static void 3091 ciss_notify_event(struct ciss_softc *sc) 3092 { 3093 struct ciss_request *cr; 3094 struct ciss_command *cc; 3095 struct ciss_notify_cdb *cnc; 3096 int error; 3097 3098 debug_called(1); 3099 3100 cr = sc->ciss_periodic_notify; 3101 3102 /* get a request if we don't already have one */ 3103 if (cr == NULL) { 3104 if ((error = ciss_get_request(sc, &cr)) != 0) { 3105 debug(0, "can't get notify event request"); 3106 goto out; 3107 } 3108 sc->ciss_periodic_notify = cr; 3109 cr->cr_complete = ciss_notify_complete; 3110 debug(1, "acquired request %d", cr->cr_tag); 3111 } 3112 3113 /* 3114 * Get a databuffer if we don't already have one, note that the 3115 * adapter command wants a larger buffer than the actual 3116 * structure. 3117 */ 3118 if (cr->cr_data == NULL) { 3119 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3120 debug(0, "can't get notify event request buffer"); 3121 error = ENOMEM; 3122 goto out; 3123 } 3124 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3125 } 3126 3127 /* re-setup the request's command (since we never release it) XXX overkill*/ 3128 ciss_preen_command(cr); 3129 3130 /* (re)build the notify event command */ 3131 cc = CISS_FIND_COMMAND(cr); 3132 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3133 cc->header.address.physical.bus = 0; 3134 cc->header.address.physical.target = 0; 3135 3136 cc->cdb.cdb_length = sizeof(*cnc); 3137 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3138 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3139 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3140 cc->cdb.timeout = 0; /* no timeout, we hope */ 3141 3142 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3143 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3144 cnc->opcode = CISS_OPCODE_READ; 3145 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3146 cnc->timeout = 0; /* no timeout, we hope */ 3147 cnc->synchronous = 0; 3148 cnc->ordered = 0; 3149 cnc->seek_to_oldest = 0; 3150 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3151 cnc->new_only = 1; 3152 else 3153 cnc->new_only = 0; 3154 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3155 3156 /* submit the request */ 3157 error = ciss_start(cr); 3158 3159 out: 3160 if (error) { 3161 if (cr != NULL) { 3162 if (cr->cr_data != NULL) 3163 free(cr->cr_data, CISS_MALLOC_CLASS); 3164 ciss_release_request(cr); 3165 } 3166 sc->ciss_periodic_notify = NULL; 3167 debug(0, "can't submit notify event request"); 3168 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3169 } else { 3170 debug(1, "notify event submitted"); 3171 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3172 } 3173 } 3174 3175 static void 3176 ciss_notify_complete(struct ciss_request *cr) 3177 { 3178 struct ciss_command *cc; 3179 struct ciss_notify *cn; 3180 struct ciss_softc *sc; 3181 int scsi_status; 3182 int command_status; 3183 debug_called(1); 3184 3185 cc = CISS_FIND_COMMAND(cr); 3186 cn = (struct ciss_notify *)cr->cr_data; 3187 sc = cr->cr_sc; 3188 3189 /* 3190 * Report request results, decode status. 3191 */ 3192 ciss_report_request(cr, &command_status, &scsi_status); 3193 3194 /* 3195 * Abort the chain on a fatal error. 3196 * 3197 * XXX which of these are actually errors? 3198 */ 3199 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3200 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3201 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3202 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3203 ciss_name_command_status(command_status)); 3204 ciss_release_request(cr); 3205 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3206 return; 3207 } 3208 3209 /* 3210 * If the adapter gave us a text message, print it. 3211 */ 3212 if (cn->message[0] != 0) 3213 ciss_printf(sc, "*** %.80s\n", cn->message); 3214 3215 debug(0, "notify event class %d subclass %d detail %d", 3216 cn->class, cn->subclass, cn->detail); 3217 3218 /* 3219 * If the response indicates that the notifier has been aborted, 3220 * release the notifier command. 3221 */ 3222 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3223 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3224 (cn->detail == 1)) { 3225 debug(0, "notifier exiting"); 3226 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3227 ciss_release_request(cr); 3228 sc->ciss_periodic_notify = NULL; 3229 wakeup(&sc->ciss_periodic_notify); 3230 } else { 3231 /* Handle notify events in a kernel thread */ 3232 ciss_enqueue_notify(cr); 3233 sc->ciss_periodic_notify = NULL; 3234 wakeup(&sc->ciss_periodic_notify); 3235 wakeup(&sc->ciss_notify); 3236 } 3237 /* 3238 * Send a new notify event command, if we're not aborting. 3239 */ 3240 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3241 ciss_notify_event(sc); 3242 } 3243 } 3244 3245 /************************************************************************ 3246 * Abort the Notify Event chain. 3247 * 3248 * Note that we can't just abort the command in progress; we have to 3249 * explicitly issue an Abort Notify Event command in order for the 3250 * adapter to clean up correctly. 3251 * 3252 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3253 * the chain will not restart itself. 3254 */ 3255 static int 3256 ciss_notify_abort(struct ciss_softc *sc) 3257 { 3258 struct ciss_request *cr; 3259 struct ciss_command *cc; 3260 struct ciss_notify_cdb *cnc; 3261 int error, s, command_status, scsi_status; 3262 3263 debug_called(1); 3264 3265 cr = NULL; 3266 error = 0; 3267 3268 /* verify that there's an outstanding command */ 3269 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3270 goto out; 3271 3272 /* get a command to issue the abort with */ 3273 if ((error = ciss_get_request(sc, &cr))) 3274 goto out; 3275 3276 /* get a buffer for the result */ 3277 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3278 debug(0, "can't get notify event request buffer"); 3279 error = ENOMEM; 3280 goto out; 3281 } 3282 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3283 3284 /* build the CDB */ 3285 cc = CISS_FIND_COMMAND(cr); 3286 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3287 cc->header.address.physical.bus = 0; 3288 cc->header.address.physical.target = 0; 3289 cc->cdb.cdb_length = sizeof(*cnc); 3290 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3291 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3292 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3293 cc->cdb.timeout = 0; /* no timeout, we hope */ 3294 3295 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3296 bzero(cnc, sizeof(*cnc)); 3297 cnc->opcode = CISS_OPCODE_WRITE; 3298 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3299 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3300 3301 ciss_print_request(cr); 3302 3303 /* 3304 * Submit the request and wait for it to complete. 3305 */ 3306 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3307 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3308 goto out; 3309 } 3310 3311 /* 3312 * Check response. 3313 */ 3314 ciss_report_request(cr, &command_status, &scsi_status); 3315 switch(command_status) { 3316 case CISS_CMD_STATUS_SUCCESS: 3317 break; 3318 case CISS_CMD_STATUS_INVALID_COMMAND: 3319 /* 3320 * Some older adapters don't support the CISS version of this 3321 * command. Fall back to using the BMIC version. 3322 */ 3323 error = ciss_notify_abort_bmic(sc); 3324 if (error != 0) 3325 goto out; 3326 break; 3327 3328 case CISS_CMD_STATUS_TARGET_STATUS: 3329 /* 3330 * This can happen if the adapter thinks there wasn't an outstanding 3331 * Notify Event command but we did. We clean up here. 3332 */ 3333 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3334 if (sc->ciss_periodic_notify != NULL) 3335 ciss_release_request(sc->ciss_periodic_notify); 3336 error = 0; 3337 goto out; 3338 } 3339 /* FALLTHROUGH */ 3340 3341 default: 3342 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3343 ciss_name_command_status(command_status)); 3344 error = EIO; 3345 goto out; 3346 } 3347 3348 /* 3349 * Sleep waiting for the notifier command to complete. Note 3350 * that if it doesn't, we may end up in a bad situation, since 3351 * the adapter may deliver it later. Also note that the adapter 3352 * requires the Notify Event command to be cancelled in order to 3353 * maintain internal bookkeeping. 3354 */ 3355 s = splcam(); 3356 while (sc->ciss_periodic_notify != NULL) { 3357 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3358 if (error == EWOULDBLOCK) { 3359 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3360 break; 3361 } 3362 } 3363 splx(s); 3364 3365 out: 3366 /* release the cancel request */ 3367 if (cr != NULL) { 3368 if (cr->cr_data != NULL) 3369 free(cr->cr_data, CISS_MALLOC_CLASS); 3370 ciss_release_request(cr); 3371 } 3372 if (error == 0) 3373 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3374 return(error); 3375 } 3376 3377 /************************************************************************ 3378 * Abort the Notify Event chain using a BMIC command. 3379 */ 3380 static int 3381 ciss_notify_abort_bmic(struct ciss_softc *sc) 3382 { 3383 struct ciss_request *cr; 3384 int error, command_status; 3385 3386 debug_called(1); 3387 3388 cr = NULL; 3389 error = 0; 3390 3391 /* verify that there's an outstanding command */ 3392 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3393 goto out; 3394 3395 /* 3396 * Build a BMIC command to cancel the Notify on Event command. 3397 * 3398 * Note that we are sending a CISS opcode here. Odd. 3399 */ 3400 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3401 NULL, 0)) != 0) 3402 goto out; 3403 3404 /* 3405 * Submit the request and wait for it to complete. 3406 */ 3407 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3408 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3409 goto out; 3410 } 3411 3412 /* 3413 * Check response. 3414 */ 3415 ciss_report_request(cr, &command_status, NULL); 3416 switch(command_status) { 3417 case CISS_CMD_STATUS_SUCCESS: 3418 break; 3419 default: 3420 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3421 ciss_name_command_status(command_status)); 3422 error = EIO; 3423 goto out; 3424 } 3425 3426 out: 3427 if (cr != NULL) 3428 ciss_release_request(cr); 3429 return(error); 3430 } 3431 3432 /************************************************************************ 3433 * Handle rescanning all the logical volumes when a notify event 3434 * causes the drives to come online or offline. 3435 */ 3436 static void 3437 ciss_notify_rescan_logical(struct ciss_softc *sc) 3438 { 3439 struct ciss_lun_report *cll; 3440 struct ciss_ldrive *ld; 3441 int i, j, ndrives; 3442 3443 /* 3444 * We must rescan all logical volumes to get the right logical 3445 * drive address. 3446 */ 3447 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3448 CISS_MAX_LOGICAL); 3449 if (cll == NULL) 3450 return; 3451 3452 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3453 3454 /* 3455 * Delete any of the drives which were destroyed by the 3456 * firmware. 3457 */ 3458 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3459 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3460 ld = &sc->ciss_logical[i][j]; 3461 3462 if (ld->cl_update == 0) 3463 continue; 3464 3465 if (ld->cl_status != CISS_LD_ONLINE) { 3466 ciss_cam_rescan_target(sc, i, j); 3467 ld->cl_update = 0; 3468 if (ld->cl_ldrive) 3469 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3470 if (ld->cl_lstatus) 3471 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3472 3473 ld->cl_ldrive = NULL; 3474 ld->cl_lstatus = NULL; 3475 } 3476 } 3477 } 3478 3479 /* 3480 * Scan for new drives. 3481 */ 3482 for (i = 0; i < ndrives; i++) { 3483 int bus, target; 3484 3485 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3486 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3487 ld = &sc->ciss_logical[bus][target]; 3488 3489 if (ld->cl_update == 0) 3490 continue; 3491 3492 ld->cl_update = 0; 3493 ld->cl_address = cll->lun[i]; 3494 ld->cl_controller = &sc->ciss_controllers[bus]; 3495 if (ciss_identify_logical(sc, ld) == 0) { 3496 ciss_cam_rescan_target(sc, bus, target); 3497 } 3498 } 3499 free(cll, CISS_MALLOC_CLASS); 3500 } 3501 3502 /************************************************************************ 3503 * Handle a notify event relating to the status of a logical drive. 3504 * 3505 * XXX need to be able to defer some of these to properly handle 3506 * calling the "ID Physical drive" command, unless the 'extended' 3507 * drive IDs are always in BIG_MAP format. 3508 */ 3509 static void 3510 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3511 { 3512 struct ciss_ldrive *ld; 3513 int ostatus, bus, target; 3514 3515 debug_called(2); 3516 3517 bus = cn->device.physical.bus; 3518 target = cn->data.logical_status.logical_drive; 3519 ld = &sc->ciss_logical[bus][target]; 3520 3521 switch (cn->subclass) { 3522 case CISS_NOTIFY_LOGICAL_STATUS: 3523 switch (cn->detail) { 3524 case 0: 3525 ciss_name_device(sc, bus, target); 3526 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3527 cn->data.logical_status.logical_drive, ld->cl_name, 3528 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3529 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3530 cn->data.logical_status.spare_state, 3531 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3532 3533 /* 3534 * Update our idea of the drive's status. 3535 */ 3536 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3537 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3538 if (ld->cl_lstatus != NULL) 3539 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3540 3541 /* 3542 * Have CAM rescan the drive if its status has changed. 3543 */ 3544 if (ostatus != ld->cl_status) { 3545 ld->cl_update = 1; 3546 ciss_notify_rescan_logical(sc); 3547 } 3548 3549 break; 3550 3551 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3552 ciss_name_device(sc, bus, target); 3553 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3554 cn->data.logical_status.logical_drive, ld->cl_name); 3555 ciss_accept_media(sc, ld); 3556 3557 ld->cl_update = 1; 3558 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3559 ciss_notify_rescan_logical(sc); 3560 break; 3561 3562 case 2: 3563 case 3: 3564 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3565 cn->data.rebuild_aborted.logical_drive, 3566 ld->cl_name, 3567 (cn->detail == 2) ? "read" : "write"); 3568 break; 3569 } 3570 break; 3571 3572 case CISS_NOTIFY_LOGICAL_ERROR: 3573 if (cn->detail == 0) { 3574 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3575 cn->data.io_error.logical_drive, 3576 ld->cl_name, 3577 cn->data.io_error.failure_bus, 3578 cn->data.io_error.failure_drive); 3579 /* XXX should we take the drive down at this point, or will we be told? */ 3580 } 3581 break; 3582 3583 case CISS_NOTIFY_LOGICAL_SURFACE: 3584 if (cn->detail == 0) 3585 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3586 cn->data.consistency_completed.logical_drive, 3587 ld->cl_name); 3588 break; 3589 } 3590 } 3591 3592 /************************************************************************ 3593 * Handle a notify event relating to the status of a physical drive. 3594 */ 3595 static void 3596 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3597 { 3598 } 3599 3600 /************************************************************************ 3601 * Handle a notify event relating to the status of a physical drive. 3602 */ 3603 static void 3604 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3605 { 3606 struct ciss_lun_report *cll = NULL; 3607 int bus, target; 3608 int s; 3609 3610 switch (cn->subclass) { 3611 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3612 case CISS_NOTIFY_HOTPLUG_NONDISK: 3613 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3614 target = 3615 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3616 3617 s = splcam(); 3618 if (cn->detail == 0) { 3619 /* 3620 * Mark the device offline so that it'll start producing selection 3621 * timeouts to the upper layer. 3622 */ 3623 if ((bus >= 0) && (target >= 0)) 3624 sc->ciss_physical[bus][target].cp_online = 0; 3625 } else { 3626 /* 3627 * Rescan the physical lun list for new items 3628 */ 3629 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3630 CISS_MAX_PHYSICAL); 3631 if (cll == NULL) { 3632 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3633 break; 3634 } 3635 ciss_filter_physical(sc, cll); 3636 } 3637 splx(s); 3638 break; 3639 3640 default: 3641 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3642 return; 3643 } 3644 3645 if (cll != NULL) 3646 free(cll, CISS_MALLOC_CLASS); 3647 } 3648 3649 /************************************************************************ 3650 * Handle deferred processing of notify events. Notify events may need 3651 * sleep which is unsafe during an interrupt. 3652 */ 3653 static void 3654 ciss_notify_thread(void *arg) 3655 { 3656 struct ciss_softc *sc; 3657 struct ciss_request *cr; 3658 struct ciss_notify *cn; 3659 int s; 3660 3661 #if __FreeBSD_version >= 500000 3662 mtx_lock(&Giant); 3663 #endif 3664 sc = (struct ciss_softc *)arg; 3665 3666 s = splcam(); 3667 for (;;) { 3668 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3669 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3670 tsleep(&sc->ciss_notify, PUSER, "idle", 0); 3671 } 3672 3673 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3674 break; 3675 3676 cr = ciss_dequeue_notify(sc); 3677 splx(s); 3678 3679 if (cr == NULL) 3680 panic("cr null"); 3681 cn = (struct ciss_notify *)cr->cr_data; 3682 3683 switch (cn->class) { 3684 case CISS_NOTIFY_HOTPLUG: 3685 ciss_notify_hotplug(sc, cn); 3686 break; 3687 case CISS_NOTIFY_LOGICAL: 3688 ciss_notify_logical(sc, cn); 3689 break; 3690 case CISS_NOTIFY_PHYSICAL: 3691 ciss_notify_physical(sc, cn); 3692 break; 3693 } 3694 3695 ciss_release_request(cr); 3696 3697 s = splcam(); 3698 } 3699 sc->ciss_notify_thread = NULL; 3700 wakeup(&sc->ciss_notify_thread); 3701 splx(s); 3702 3703 #if __FreeBSD_version >= 500000 3704 mtx_unlock(&Giant); 3705 #endif 3706 kthread_exit(0); 3707 } 3708 3709 /************************************************************************ 3710 * Start the notification kernel thread. 3711 */ 3712 static void 3713 ciss_spawn_notify_thread(struct ciss_softc *sc) 3714 { 3715 3716 #if __FreeBSD_version > 500005 3717 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3718 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 3719 device_get_unit(sc->ciss_dev))) 3720 #else 3721 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 3722 &sc->ciss_notify_thread, "ciss_notify%d", 3723 device_get_unit(sc->ciss_dev))) 3724 #endif 3725 panic("Could not create notify thread\n"); 3726 } 3727 3728 /************************************************************************ 3729 * Kill the notification kernel thread. 3730 */ 3731 static void 3732 ciss_kill_notify_thread(struct ciss_softc *sc) 3733 { 3734 3735 if (sc->ciss_notify_thread == NULL) 3736 return; 3737 3738 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3739 wakeup(&sc->ciss_notify); 3740 tsleep(&sc->ciss_notify_thread, PUSER, "thtrm", 0); 3741 } 3742 3743 /************************************************************************ 3744 * Print a request. 3745 */ 3746 static void 3747 ciss_print_request(struct ciss_request *cr) 3748 { 3749 struct ciss_softc *sc; 3750 struct ciss_command *cc; 3751 int i; 3752 3753 sc = cr->cr_sc; 3754 cc = CISS_FIND_COMMAND(cr); 3755 3756 ciss_printf(sc, "REQUEST @ %p\n", cr); 3757 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3758 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3759 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3760 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3761 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3762 switch(cc->header.address.mode.mode) { 3763 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3764 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3765 ciss_printf(sc, " physical bus %d target %d\n", 3766 cc->header.address.physical.bus, cc->header.address.physical.target); 3767 break; 3768 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3769 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3770 break; 3771 } 3772 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3773 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3774 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3775 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3776 cc->cdb.cdb_length, 3777 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3778 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3779 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3780 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3781 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3782 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3783 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3784 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3785 3786 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3787 /* XXX print error info */ 3788 } else { 3789 /* since we don't use chained s/g, don't support it here */ 3790 for (i = 0; i < cc->header.sg_in_list; i++) { 3791 if ((i % 4) == 0) 3792 ciss_printf(sc, " "); 3793 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3794 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3795 printf("\n"); 3796 } 3797 } 3798 } 3799 3800 /************************************************************************ 3801 * Print information about the status of a logical drive. 3802 */ 3803 static void 3804 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3805 { 3806 int bus, target, i; 3807 3808 if (ld->cl_lstatus == NULL) { 3809 printf("does not exist\n"); 3810 return; 3811 } 3812 3813 /* print drive status */ 3814 switch(ld->cl_lstatus->status) { 3815 case CISS_LSTATUS_OK: 3816 printf("online\n"); 3817 break; 3818 case CISS_LSTATUS_INTERIM_RECOVERY: 3819 printf("in interim recovery mode\n"); 3820 break; 3821 case CISS_LSTATUS_READY_RECOVERY: 3822 printf("ready to begin recovery\n"); 3823 break; 3824 case CISS_LSTATUS_RECOVERING: 3825 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3826 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3827 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3828 bus, target, ld->cl_lstatus->blocks_to_recover); 3829 break; 3830 case CISS_LSTATUS_EXPANDING: 3831 printf("being expanded, %u blocks remaining\n", 3832 ld->cl_lstatus->blocks_to_recover); 3833 break; 3834 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3835 printf("queued for expansion\n"); 3836 break; 3837 case CISS_LSTATUS_FAILED: 3838 printf("queued for expansion\n"); 3839 break; 3840 case CISS_LSTATUS_WRONG_PDRIVE: 3841 printf("wrong physical drive inserted\n"); 3842 break; 3843 case CISS_LSTATUS_MISSING_PDRIVE: 3844 printf("missing a needed physical drive\n"); 3845 break; 3846 case CISS_LSTATUS_BECOMING_READY: 3847 printf("becoming ready\n"); 3848 break; 3849 } 3850 3851 /* print failed physical drives */ 3852 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3853 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3854 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3855 if (bus == -1) 3856 continue; 3857 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3858 ld->cl_lstatus->drive_failure_map[i]); 3859 } 3860 } 3861 3862 #ifdef CISS_DEBUG 3863 /************************************************************************ 3864 * Print information about the controller/driver. 3865 */ 3866 static void 3867 ciss_print_adapter(struct ciss_softc *sc) 3868 { 3869 int i, j; 3870 3871 ciss_printf(sc, "ADAPTER:\n"); 3872 for (i = 0; i < CISSQ_COUNT; i++) { 3873 ciss_printf(sc, "%s %d/%d\n", 3874 i == 0 ? "free" : 3875 i == 1 ? "busy" : "complete", 3876 sc->ciss_qstat[i].q_length, 3877 sc->ciss_qstat[i].q_max); 3878 } 3879 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3880 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3881 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3882 3883 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3884 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3885 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3886 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3887 } 3888 } 3889 3890 /* XXX Should physical drives be printed out here? */ 3891 3892 for (i = 1; i < sc->ciss_max_requests; i++) 3893 ciss_print_request(sc->ciss_request + i); 3894 } 3895 3896 /* DDB hook */ 3897 static void 3898 ciss_print0(void) 3899 { 3900 struct ciss_softc *sc; 3901 3902 sc = devclass_get_softc(devclass_find("ciss"), 0); 3903 if (sc == NULL) { 3904 printf("no ciss controllers\n"); 3905 } else { 3906 ciss_print_adapter(sc); 3907 } 3908 } 3909 #endif 3910 3911 /************************************************************************ 3912 * Return a name for a logical drive status value. 3913 */ 3914 static const char * 3915 ciss_name_ldrive_status(int status) 3916 { 3917 switch (status) { 3918 case CISS_LSTATUS_OK: 3919 return("OK"); 3920 case CISS_LSTATUS_FAILED: 3921 return("failed"); 3922 case CISS_LSTATUS_NOT_CONFIGURED: 3923 return("not configured"); 3924 case CISS_LSTATUS_INTERIM_RECOVERY: 3925 return("interim recovery"); 3926 case CISS_LSTATUS_READY_RECOVERY: 3927 return("ready for recovery"); 3928 case CISS_LSTATUS_RECOVERING: 3929 return("recovering"); 3930 case CISS_LSTATUS_WRONG_PDRIVE: 3931 return("wrong physical drive inserted"); 3932 case CISS_LSTATUS_MISSING_PDRIVE: 3933 return("missing physical drive"); 3934 case CISS_LSTATUS_EXPANDING: 3935 return("expanding"); 3936 case CISS_LSTATUS_BECOMING_READY: 3937 return("becoming ready"); 3938 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3939 return("queued for expansion"); 3940 } 3941 return("unknown status"); 3942 } 3943 3944 /************************************************************************ 3945 * Return an online/offline/nonexistent value for a logical drive 3946 * status value. 3947 */ 3948 static int 3949 ciss_decode_ldrive_status(int status) 3950 { 3951 switch(status) { 3952 case CISS_LSTATUS_NOT_CONFIGURED: 3953 return(CISS_LD_NONEXISTENT); 3954 3955 case CISS_LSTATUS_OK: 3956 case CISS_LSTATUS_INTERIM_RECOVERY: 3957 case CISS_LSTATUS_READY_RECOVERY: 3958 case CISS_LSTATUS_RECOVERING: 3959 case CISS_LSTATUS_EXPANDING: 3960 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3961 return(CISS_LD_ONLINE); 3962 3963 case CISS_LSTATUS_FAILED: 3964 case CISS_LSTATUS_WRONG_PDRIVE: 3965 case CISS_LSTATUS_MISSING_PDRIVE: 3966 case CISS_LSTATUS_BECOMING_READY: 3967 default: 3968 return(CISS_LD_OFFLINE); 3969 } 3970 } 3971 3972 3973 /************************************************************************ 3974 * Return a name for a logical drive's organisation. 3975 */ 3976 static const char * 3977 ciss_name_ldrive_org(int org) 3978 { 3979 switch(org) { 3980 case CISS_LDRIVE_RAID0: 3981 return("RAID 0"); 3982 case CISS_LDRIVE_RAID1: 3983 return("RAID 1"); 3984 case CISS_LDRIVE_RAID4: 3985 return("RAID 4"); 3986 case CISS_LDRIVE_RAID5: 3987 return("RAID 5"); 3988 case CISS_LDRIVE_RAID51: 3989 return("RAID 5+1"); 3990 case CISS_LDRIVE_RAIDADG: 3991 return("RAID ADG"); 3992 } 3993 return("unkown"); 3994 } 3995 3996 /************************************************************************ 3997 * Return a name for a command status value. 3998 */ 3999 static const char * 4000 ciss_name_command_status(int status) 4001 { 4002 switch(status) { 4003 case CISS_CMD_STATUS_SUCCESS: 4004 return("success"); 4005 case CISS_CMD_STATUS_TARGET_STATUS: 4006 return("target status"); 4007 case CISS_CMD_STATUS_DATA_UNDERRUN: 4008 return("data underrun"); 4009 case CISS_CMD_STATUS_DATA_OVERRUN: 4010 return("data overrun"); 4011 case CISS_CMD_STATUS_INVALID_COMMAND: 4012 return("invalid command"); 4013 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4014 return("protocol error"); 4015 case CISS_CMD_STATUS_HARDWARE_ERROR: 4016 return("hardware error"); 4017 case CISS_CMD_STATUS_CONNECTION_LOST: 4018 return("connection lost"); 4019 case CISS_CMD_STATUS_ABORTED: 4020 return("aborted"); 4021 case CISS_CMD_STATUS_ABORT_FAILED: 4022 return("abort failed"); 4023 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4024 return("unsolicited abort"); 4025 case CISS_CMD_STATUS_TIMEOUT: 4026 return("timeout"); 4027 case CISS_CMD_STATUS_UNABORTABLE: 4028 return("unabortable"); 4029 } 4030 return("unknown status"); 4031 } 4032 4033 /************************************************************************ 4034 * Handle an open on the control device. 4035 */ 4036 static int 4037 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4038 { 4039 struct ciss_softc *sc; 4040 4041 debug_called(1); 4042 4043 sc = (struct ciss_softc *)dev->si_drv1; 4044 4045 /* we might want to veto if someone already has us open */ 4046 4047 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4048 return(0); 4049 } 4050 4051 /************************************************************************ 4052 * Handle the last close on the control device. 4053 */ 4054 static int 4055 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4056 { 4057 struct ciss_softc *sc; 4058 4059 debug_called(1); 4060 4061 sc = (struct ciss_softc *)dev->si_drv1; 4062 4063 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4064 return (0); 4065 } 4066 4067 /******************************************************************************** 4068 * Handle adapter-specific control operations. 4069 * 4070 * Note that the API here is compatible with the Linux driver, in order to 4071 * simplify the porting of Compaq's userland tools. 4072 */ 4073 static int 4074 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4075 { 4076 struct ciss_softc *sc; 4077 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4078 #ifdef __amd64__ 4079 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4080 IOCTL_Command_struct ioc_swab; 4081 #endif 4082 int error; 4083 4084 debug_called(1); 4085 4086 sc = (struct ciss_softc *)dev->si_drv1; 4087 error = 0; 4088 4089 switch(cmd) { 4090 case CCISS_GETPCIINFO: 4091 { 4092 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4093 4094 pis->bus = pci_get_bus(sc->ciss_dev); 4095 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4096 pis->board_id = pci_get_devid(sc->ciss_dev); 4097 4098 break; 4099 } 4100 4101 case CCISS_GETINTINFO: 4102 { 4103 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4104 4105 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4106 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4107 4108 break; 4109 } 4110 4111 case CCISS_SETINTINFO: 4112 { 4113 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4114 4115 if ((cis->delay == 0) && (cis->count == 0)) { 4116 error = EINVAL; 4117 break; 4118 } 4119 4120 /* 4121 * XXX apparently this is only safe if the controller is idle, 4122 * we should suspend it before doing this. 4123 */ 4124 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4125 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4126 4127 if (ciss_update_config(sc)) 4128 error = EIO; 4129 4130 /* XXX resume the controller here */ 4131 break; 4132 } 4133 4134 case CCISS_GETNODENAME: 4135 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4136 sizeof(NodeName_type)); 4137 break; 4138 4139 case CCISS_SETNODENAME: 4140 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4141 sizeof(NodeName_type)); 4142 if (ciss_update_config(sc)) 4143 error = EIO; 4144 break; 4145 4146 case CCISS_GETHEARTBEAT: 4147 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4148 break; 4149 4150 case CCISS_GETBUSTYPES: 4151 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4152 break; 4153 4154 case CCISS_GETFIRMVER: 4155 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4156 sizeof(FirmwareVer_type)); 4157 break; 4158 4159 case CCISS_GETDRIVERVER: 4160 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4161 break; 4162 4163 case CCISS_REVALIDVOLS: 4164 /* 4165 * This is a bit ugly; to do it "right" we really need 4166 * to find any disks that have changed, kick CAM off them, 4167 * then rescan only these disks. It'd be nice if they 4168 * a) told us which disk(s) they were going to play with, 4169 * and b) which ones had arrived. 8( 4170 */ 4171 break; 4172 4173 #ifdef __amd64__ 4174 case CCISS_PASSTHRU32: 4175 ioc_swab.LUN_info = ioc32->LUN_info; 4176 ioc_swab.Request = ioc32->Request; 4177 ioc_swab.error_info = ioc32->error_info; 4178 ioc_swab.buf_size = ioc32->buf_size; 4179 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4180 ioc = &ioc_swab; 4181 /* FALLTHROUGH */ 4182 #endif 4183 4184 case CCISS_PASSTHRU: 4185 error = ciss_user_command(sc, ioc); 4186 break; 4187 4188 default: 4189 debug(0, "unknown ioctl 0x%lx", cmd); 4190 4191 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4192 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4193 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4194 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4195 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4196 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4197 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4198 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4199 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4200 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4201 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4202 4203 error = ENOIOCTL; 4204 break; 4205 } 4206 4207 return(error); 4208 } 4209