ciss.c revision 192361
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: head/sys/dev/ciss/ciss.c 192361 2009-05-19 01:41:11Z scottl $ 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/cissio.h> 106#include <dev/ciss/cissvar.h> 107 108MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110/* pci interface */ 111static int ciss_lookup(device_t dev); 112static int ciss_probe(device_t dev); 113static int ciss_attach(device_t dev); 114static int ciss_detach(device_t dev); 115static int ciss_shutdown(device_t dev); 116 117/* (de)initialisation functions, control wrappers */ 118static int ciss_init_pci(struct ciss_softc *sc); 119static int ciss_setup_msix(struct ciss_softc *sc); 120static int ciss_init_perf(struct ciss_softc *sc); 121static int ciss_wait_adapter(struct ciss_softc *sc); 122static int ciss_flush_adapter(struct ciss_softc *sc); 123static int ciss_init_requests(struct ciss_softc *sc); 124static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126static int ciss_identify_adapter(struct ciss_softc *sc); 127static int ciss_init_logical(struct ciss_softc *sc); 128static int ciss_init_physical(struct ciss_softc *sc); 129static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132static int ciss_update_config(struct ciss_softc *sc); 133static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134static void ciss_init_sysctl(struct ciss_softc *sc); 135static void ciss_soft_reset(struct ciss_softc *sc); 136static void ciss_free(struct ciss_softc *sc); 137static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140/* request submission/completion */ 141static int ciss_start(struct ciss_request *cr); 142static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144static void ciss_intr(void *arg); 145static void ciss_perf_intr(void *arg); 146static void ciss_perf_msi_intr(void *arg); 147static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149static int ciss_synch_request(struct ciss_request *cr, int timeout); 150static int ciss_poll_request(struct ciss_request *cr, int timeout); 151static int ciss_wait_request(struct ciss_request *cr, int timeout); 152#if 0 153static int ciss_abort_request(struct ciss_request *cr); 154#endif 155 156/* request queueing */ 157static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158static void ciss_preen_command(struct ciss_request *cr); 159static void ciss_release_request(struct ciss_request *cr); 160 161/* request helpers */ 162static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166/* DMA map/unmap */ 167static int ciss_map_request(struct ciss_request *cr); 168static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170static void ciss_unmap_request(struct ciss_request *cr); 171 172/* CAM interface */ 173static int ciss_cam_init(struct ciss_softc *sc); 174static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176static void ciss_cam_rescan_all(struct ciss_softc *sc); 177static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181static void ciss_cam_poll(struct cam_sim *sim); 182static void ciss_cam_complete(struct ciss_request *cr); 183static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188/* periodic status monitoring */ 189static void ciss_periodic(void *arg); 190static void ciss_nop_complete(struct ciss_request *cr); 191static void ciss_disable_adapter(struct ciss_softc *sc); 192static void ciss_notify_event(struct ciss_softc *sc); 193static void ciss_notify_complete(struct ciss_request *cr); 194static int ciss_notify_abort(struct ciss_softc *sc); 195static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200/* debugging output */ 201static void ciss_print_request(struct ciss_request *cr); 202static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203static const char *ciss_name_ldrive_status(int status); 204static int ciss_decode_ldrive_status(int status); 205static const char *ciss_name_ldrive_org(int org); 206static const char *ciss_name_command_status(int status); 207 208/* 209 * PCI bus interface. 210 */ 211static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 { 0, 0 } 218}; 219 220static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224}; 225 226static devclass_t ciss_devclass; 227DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 228MODULE_DEPEND(ciss, cam, 1, 1, 1); 229MODULE_DEPEND(ciss, pci, 1, 1, 1); 230 231/* 232 * Control device interface. 233 */ 234static d_open_t ciss_open; 235static d_close_t ciss_close; 236static d_ioctl_t ciss_ioctl; 237 238static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245}; 246 247/* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251static unsigned int ciss_expose_hidden_physical = 0; 252TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254static unsigned int ciss_nop_message_heartbeat = 0; 255TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257/* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263static int ciss_force_transport = 0; 264TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266/* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272static int ciss_force_interrupt = 0; 273TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275/************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282#define CISS_BOARD_SA5 (1<<0) 283#define CISS_BOARD_SA5B (1<<1) 284 285static struct 286{ 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291} ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 293 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 294 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 295 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 296 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 297 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 298 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 299 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 300 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 301 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 302 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 303 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 307 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 309 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 310 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 315 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 316 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 318 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 324 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 325 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 326 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 327 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 328 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 329 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 330 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 331 { 0, 0, 0, NULL } 332}; 333 334/************************************************************************ 335 * Find a match for the device in our list of known adapters. 336 */ 337static int 338ciss_lookup(device_t dev) 339{ 340 int i; 341 342 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 343 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 344 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 345 return(i); 346 } 347 return(-1); 348} 349 350/************************************************************************ 351 * Match a known CISS adapter. 352 */ 353static int 354ciss_probe(device_t dev) 355{ 356 int i; 357 358 i = ciss_lookup(dev); 359 if (i != -1) { 360 device_set_desc(dev, ciss_vendor_data[i].desc); 361 return(BUS_PROBE_DEFAULT); 362 } 363 return(ENOENT); 364} 365 366/************************************************************************ 367 * Attach the driver to this adapter. 368 */ 369static int 370ciss_attach(device_t dev) 371{ 372 struct ciss_softc *sc; 373 int error; 374 375 debug_called(1); 376 377#ifdef CISS_DEBUG 378 /* print structure/union sizes */ 379 debug_struct(ciss_command); 380 debug_struct(ciss_header); 381 debug_union(ciss_device_address); 382 debug_struct(ciss_cdb); 383 debug_struct(ciss_report_cdb); 384 debug_struct(ciss_notify_cdb); 385 debug_struct(ciss_notify); 386 debug_struct(ciss_message_cdb); 387 debug_struct(ciss_error_info_pointer); 388 debug_struct(ciss_error_info); 389 debug_struct(ciss_sg_entry); 390 debug_struct(ciss_config_table); 391 debug_struct(ciss_bmic_cdb); 392 debug_struct(ciss_bmic_id_ldrive); 393 debug_struct(ciss_bmic_id_lstatus); 394 debug_struct(ciss_bmic_id_table); 395 debug_struct(ciss_bmic_id_pdrive); 396 debug_struct(ciss_bmic_blink_pdrive); 397 debug_struct(ciss_bmic_flush_cache); 398 debug_const(CISS_MAX_REQUESTS); 399 debug_const(CISS_MAX_LOGICAL); 400 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 401 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 402 debug_const(CISS_COMMAND_ALLOC_SIZE); 403 debug_const(CISS_COMMAND_SG_LENGTH); 404 405 debug_type(cciss_pci_info_struct); 406 debug_type(cciss_coalint_struct); 407 debug_type(cciss_coalint_struct); 408 debug_type(NodeName_type); 409 debug_type(NodeName_type); 410 debug_type(Heartbeat_type); 411 debug_type(BusTypes_type); 412 debug_type(FirmwareVer_type); 413 debug_type(DriverVer_type); 414 debug_type(IOCTL_Command_struct); 415#endif 416 417 sc = device_get_softc(dev); 418 sc->ciss_dev = dev; 419 420 /* 421 * Do PCI-specific init. 422 */ 423 if ((error = ciss_init_pci(sc)) != 0) 424 goto out; 425 426 /* 427 * Initialise driver queues. 428 */ 429 ciss_initq_free(sc); 430 ciss_initq_notify(sc); 431 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 432 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 433 434 /* 435 * Initalize device sysctls. 436 */ 437 ciss_init_sysctl(sc); 438 439 /* 440 * Initialise command/request pool. 441 */ 442 if ((error = ciss_init_requests(sc)) != 0) 443 goto out; 444 445 /* 446 * Get adapter information. 447 */ 448 if ((error = ciss_identify_adapter(sc)) != 0) 449 goto out; 450 451 /* 452 * Find all the physical devices. 453 */ 454 if ((error = ciss_init_physical(sc)) != 0) 455 goto out; 456 457 /* 458 * Build our private table of logical devices. 459 */ 460 if ((error = ciss_init_logical(sc)) != 0) 461 goto out; 462 463 /* 464 * Enable interrupts so that the CAM scan can complete. 465 */ 466 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 467 468 /* 469 * Initialise the CAM interface. 470 */ 471 if ((error = ciss_cam_init(sc)) != 0) 472 goto out; 473 474 /* 475 * Start the heartbeat routine and event chain. 476 */ 477 ciss_periodic(sc); 478 479 /* 480 * Create the control device. 481 */ 482 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 483 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 484 "ciss%d", device_get_unit(sc->ciss_dev)); 485 sc->ciss_dev_t->si_drv1 = sc; 486 487 /* 488 * The adapter is running; synchronous commands can now sleep 489 * waiting for an interrupt to signal completion. 490 */ 491 sc->ciss_flags |= CISS_FLAG_RUNNING; 492 493 ciss_spawn_notify_thread(sc); 494 495 error = 0; 496 out: 497 if (error != 0) 498 ciss_free(sc); 499 return(error); 500} 501 502/************************************************************************ 503 * Detach the driver from this adapter. 504 */ 505static int 506ciss_detach(device_t dev) 507{ 508 struct ciss_softc *sc = device_get_softc(dev); 509 510 debug_called(1); 511 512 mtx_lock(&sc->ciss_mtx); 513 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 514 mtx_unlock(&sc->ciss_mtx); 515 return (EBUSY); 516 } 517 518 /* flush adapter cache */ 519 ciss_flush_adapter(sc); 520 521 /* release all resources. The mutex is released and freed here too. */ 522 ciss_free(sc); 523 524 return(0); 525} 526 527/************************************************************************ 528 * Prepare adapter for system shutdown. 529 */ 530static int 531ciss_shutdown(device_t dev) 532{ 533 struct ciss_softc *sc = device_get_softc(dev); 534 535 debug_called(1); 536 537 mtx_lock(&sc->ciss_mtx); 538 /* flush adapter cache */ 539 ciss_flush_adapter(sc); 540 541 if (sc->ciss_soft_reset) 542 ciss_soft_reset(sc); 543 mtx_unlock(&sc->ciss_mtx); 544 545 return(0); 546} 547 548static void 549ciss_init_sysctl(struct ciss_softc *sc) 550{ 551 552 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 553 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 554 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 555} 556 557/************************************************************************ 558 * Perform PCI-specific attachment actions. 559 */ 560static int 561ciss_init_pci(struct ciss_softc *sc) 562{ 563 uintptr_t cbase, csize, cofs; 564 uint32_t method, supported_methods; 565 int error, sqmask, i; 566 void *intr; 567 568 debug_called(1); 569 570 /* 571 * Work out adapter type. 572 */ 573 i = ciss_lookup(sc->ciss_dev); 574 if (i < 0) { 575 ciss_printf(sc, "unknown adapter type\n"); 576 return (ENXIO); 577 } 578 579 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 580 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 581 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 582 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 583 } else { 584 /* 585 * XXX Big hammer, masks/unmasks all possible interrupts. This should 586 * work on all hardware variants. Need to add code to handle the 587 * "controller crashed" interupt bit that this unmasks. 588 */ 589 sqmask = ~0; 590 } 591 592 /* 593 * Allocate register window first (we need this to find the config 594 * struct). 595 */ 596 error = ENXIO; 597 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 598 if ((sc->ciss_regs_resource = 599 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 600 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 601 ciss_printf(sc, "can't allocate register window\n"); 602 return(ENXIO); 603 } 604 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 605 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 606 607 /* 608 * Find the BAR holding the config structure. If it's not the one 609 * we already mapped for registers, map it too. 610 */ 611 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 612 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 613 if ((sc->ciss_cfg_resource = 614 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 615 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 616 ciss_printf(sc, "can't allocate config window\n"); 617 return(ENXIO); 618 } 619 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 620 csize = rman_get_end(sc->ciss_cfg_resource) - 621 rman_get_start(sc->ciss_cfg_resource) + 1; 622 } else { 623 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 624 csize = rman_get_end(sc->ciss_regs_resource) - 625 rman_get_start(sc->ciss_regs_resource) + 1; 626 } 627 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 628 629 /* 630 * Use the base/size/offset values we just calculated to 631 * sanity-check the config structure. If it's OK, point to it. 632 */ 633 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 634 ciss_printf(sc, "config table outside window\n"); 635 return(ENXIO); 636 } 637 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 638 debug(1, "config struct at %p", sc->ciss_cfg); 639 640 /* 641 * Calculate the number of request structures/commands we are 642 * going to provide for this adapter. 643 */ 644 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 645 646 /* 647 * Validate the config structure. If we supported other transport 648 * methods, we could select amongst them at this point in time. 649 */ 650 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 651 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 652 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 653 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 654 return(ENXIO); 655 } 656 657 /* 658 * Select the mode of operation, prefer Performant. 659 */ 660 if (!(sc->ciss_cfg->supported_methods & 661 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 662 ciss_printf(sc, "No supported transport layers: 0x%x\n", 663 sc->ciss_cfg->supported_methods); 664 return(ENXIO); 665 } 666 667 switch (ciss_force_transport) { 668 case 1: 669 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 670 break; 671 case 2: 672 supported_methods = CISS_TRANSPORT_METHOD_PERF; 673 break; 674 default: 675 supported_methods = sc->ciss_cfg->supported_methods; 676 break; 677 } 678 679setup: 680 if (supported_methods & CISS_TRANSPORT_METHOD_PERF) { 681 method = CISS_TRANSPORT_METHOD_PERF; 682 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 683 sc->ciss_cfg->transport_offset); 684 if (ciss_init_perf(sc)) { 685 supported_methods &= ~method; 686 goto setup; 687 } 688 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 689 method = CISS_TRANSPORT_METHOD_SIMPLE; 690 } else { 691 ciss_printf(sc, "No supported transport methods: 0x%x\n", 692 sc->ciss_cfg->supported_methods); 693 return(ENXIO); 694 } 695 696 /* 697 * Tell it we're using the low 4GB of RAM. Set the default interrupt 698 * coalescing options. 699 */ 700 sc->ciss_cfg->requested_method = method; 701 sc->ciss_cfg->command_physlimit = 0; 702 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 703 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 704 705#ifdef __i386__ 706 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 707#endif 708 709 if (ciss_update_config(sc)) { 710 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 711 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 712 return(ENXIO); 713 } 714 if ((sc->ciss_cfg->active_method & method) == 0) { 715 supported_methods &= ~method; 716 if (supported_methods == 0) { 717 ciss_printf(sc, "adapter refuses to go into available transports " 718 "mode (0x%x, 0x%x)\n", supported_methods, 719 sc->ciss_cfg->active_method); 720 return(ENXIO); 721 } else 722 goto setup; 723 } 724 725 /* 726 * Wait for the adapter to come ready. 727 */ 728 if ((error = ciss_wait_adapter(sc)) != 0) 729 return(error); 730 731 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 732 * interrupts have a rid of 0, this will be overridden if MSIX is used. 733 */ 734 sc->ciss_irq_rid[0] = 0; 735 if (method == CISS_TRANSPORT_METHOD_PERF) { 736 ciss_printf(sc, "PERFORMANT Transport\n"); 737 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 738 intr = ciss_perf_msi_intr; 739 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_MSI; 740 } else { 741 intr = ciss_perf_intr; 742 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ; 743 } 744 } else { 745 ciss_printf(sc, "SIMPLE Transport\n"); 746 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 747 if (ciss_force_interrupt == 2) 748 /* If this fails, we automatically revert to INTx */ 749 ciss_setup_msix(sc); 750 sc->ciss_perf = NULL; 751 intr = ciss_intr; 752 sc->ciss_interrupt_mask = sqmask; 753 } 754 755 /* 756 * Turn off interrupts before we go routing anything. 757 */ 758 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 759 760 /* 761 * Allocate and set up our interrupt. 762 */ 763 if ((sc->ciss_irq_resource = 764 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 765 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 766 ciss_printf(sc, "can't allocate interrupt\n"); 767 return(ENXIO); 768 } 769 770 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 771 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 772 &sc->ciss_intr)) { 773 ciss_printf(sc, "can't set up interrupt\n"); 774 return(ENXIO); 775 } 776 777 /* 778 * Allocate the parent bus DMA tag appropriate for our PCI 779 * interface. 780 * 781 * Note that "simple" adapters can only address within a 32-bit 782 * span. 783 */ 784 if (bus_dma_tag_create(NULL, /* parent */ 785 1, 0, /* alignment, boundary */ 786 BUS_SPACE_MAXADDR, /* lowaddr */ 787 BUS_SPACE_MAXADDR, /* highaddr */ 788 NULL, NULL, /* filter, filterarg */ 789 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 790 CISS_COMMAND_SG_LENGTH, /* nsegments */ 791 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 792 0, /* flags */ 793 NULL, NULL, /* lockfunc, lockarg */ 794 &sc->ciss_parent_dmat)) { 795 ciss_printf(sc, "can't allocate parent DMA tag\n"); 796 return(ENOMEM); 797 } 798 799 /* 800 * Create DMA tag for mapping buffers into adapter-addressable 801 * space. 802 */ 803 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 804 1, 0, /* alignment, boundary */ 805 BUS_SPACE_MAXADDR, /* lowaddr */ 806 BUS_SPACE_MAXADDR, /* highaddr */ 807 NULL, NULL, /* filter, filterarg */ 808 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 809 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 810 BUS_DMA_ALLOCNOW, /* flags */ 811 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 812 &sc->ciss_buffer_dmat)) { 813 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 814 return(ENOMEM); 815 } 816 return(0); 817} 818 819/************************************************************************ 820 * Setup MSI/MSIX operation (Performant only) 821 * Four interrupts are available, but we only use 1 right now. 822 */ 823static int 824ciss_setup_msix(struct ciss_softc *sc) 825{ 826 uint32_t id; 827 int val, i; 828 829 /* Weed out devices that don't actually support MSI */ 830 id = (pci_get_subvendor(sc->ciss_dev) << 16) | 831 pci_get_subdevice(sc->ciss_dev); 832 if ((id == 0x0e114070) || (id == 0x0e114080) || (id == 0x0e114082) || 833 (id == 0x0e114083)) 834 return (EINVAL); 835 836 val = pci_msix_count(sc->ciss_dev); 837 if ((val != CISS_MSI_COUNT) || (pci_alloc_msix(sc->ciss_dev, &val) != 0)) 838 return (EINVAL); 839 840 sc->ciss_msi = val; 841 ciss_printf(sc, "Using MSIX interrupt\n"); 842 843 for (i = 0; i < CISS_MSI_COUNT; i++) 844 sc->ciss_irq_rid[i] = i + 1; 845 846 return (0); 847 848} 849 850/************************************************************************ 851 * Setup the Performant structures. 852 */ 853static int 854ciss_init_perf(struct ciss_softc *sc) 855{ 856 struct ciss_perf_config *pc = sc->ciss_perf; 857 int reply_size; 858 859 /* 860 * Create the DMA tag for the reply queue. 861 */ 862 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 863 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 864 1, 0, /* alignment, boundary */ 865 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 866 BUS_SPACE_MAXADDR, /* highaddr */ 867 NULL, NULL, /* filter, filterarg */ 868 reply_size, 1, /* maxsize, nsegments */ 869 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 870 0, /* flags */ 871 NULL, NULL, /* lockfunc, lockarg */ 872 &sc->ciss_reply_dmat)) { 873 ciss_printf(sc, "can't allocate reply DMA tag\n"); 874 return(ENOMEM); 875 } 876 /* 877 * Allocate memory and make it available for DMA. 878 */ 879 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 880 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 881 ciss_printf(sc, "can't allocate reply memory\n"); 882 return(ENOMEM); 883 } 884 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 885 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 886 bzero(sc->ciss_reply, reply_size); 887 888 sc->ciss_cycle = 0x1; 889 sc->ciss_rqidx = 0; 890 891 /* 892 * Preload the fetch table with common command sizes. This allows the 893 * hardware to not waste bus cycles for typical i/o commands, but also not 894 * tax the driver to be too exact in choosing sizes. The table is optimized 895 * for page-aligned i/o's, but since most i/o comes from the various pagers, 896 * it's a reasonable assumption to make. 897 */ 898 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 899 pc->fetch_count[CISS_SG_FETCH_1] = 900 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 901 pc->fetch_count[CISS_SG_FETCH_2] = 902 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 903 pc->fetch_count[CISS_SG_FETCH_4] = 904 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 905 pc->fetch_count[CISS_SG_FETCH_8] = 906 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 907 pc->fetch_count[CISS_SG_FETCH_16] = 908 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 909 pc->fetch_count[CISS_SG_FETCH_32] = 910 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 911 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 912 913 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 914 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 915 pc->rq_bank_hi = 0; 916 pc->rq_bank_lo = 0; 917 pc->rq[0].rq_addr_hi = 0x0; 918 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 919 920 return(0); 921} 922 923/************************************************************************ 924 * Wait for the adapter to come ready. 925 */ 926static int 927ciss_wait_adapter(struct ciss_softc *sc) 928{ 929 int i; 930 931 debug_called(1); 932 933 /* 934 * Wait for the adapter to come ready. 935 */ 936 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 937 ciss_printf(sc, "waiting for adapter to come ready...\n"); 938 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 939 DELAY(1000000); /* one second */ 940 if (i > 30) { 941 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 942 return(EIO); 943 } 944 } 945 } 946 return(0); 947} 948 949/************************************************************************ 950 * Flush the adapter cache. 951 */ 952static int 953ciss_flush_adapter(struct ciss_softc *sc) 954{ 955 struct ciss_request *cr; 956 struct ciss_bmic_flush_cache *cbfc; 957 int error, command_status; 958 959 debug_called(1); 960 961 cr = NULL; 962 cbfc = NULL; 963 964 /* 965 * Build a BMIC request to flush the cache. We don't disable 966 * it, as we may be going to do more I/O (eg. we are emulating 967 * the Synchronise Cache command). 968 */ 969 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 970 error = ENOMEM; 971 goto out; 972 } 973 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 974 (void **)&cbfc, sizeof(*cbfc))) != 0) 975 goto out; 976 977 /* 978 * Submit the request and wait for it to complete. 979 */ 980 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 981 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 982 goto out; 983 } 984 985 /* 986 * Check response. 987 */ 988 ciss_report_request(cr, &command_status, NULL); 989 switch(command_status) { 990 case CISS_CMD_STATUS_SUCCESS: 991 break; 992 default: 993 ciss_printf(sc, "error flushing cache (%s)\n", 994 ciss_name_command_status(command_status)); 995 error = EIO; 996 goto out; 997 } 998 999out: 1000 if (cbfc != NULL) 1001 free(cbfc, CISS_MALLOC_CLASS); 1002 if (cr != NULL) 1003 ciss_release_request(cr); 1004 return(error); 1005} 1006 1007static void 1008ciss_soft_reset(struct ciss_softc *sc) 1009{ 1010 struct ciss_request *cr = NULL; 1011 struct ciss_command *cc; 1012 int i, error = 0; 1013 1014 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1015 /* only reset proxy controllers */ 1016 if (sc->ciss_controllers[i].physical.bus == 0) 1017 continue; 1018 1019 if ((error = ciss_get_request(sc, &cr)) != 0) 1020 break; 1021 1022 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1023 NULL, 0)) != 0) 1024 break; 1025 1026 cc = CISS_FIND_COMMAND(cr); 1027 cc->header.address = sc->ciss_controllers[i]; 1028 1029 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1030 break; 1031 1032 ciss_release_request(cr); 1033 } 1034 1035 if (error) 1036 ciss_printf(sc, "error resetting controller (%d)\n", error); 1037 1038 if (cr != NULL) 1039 ciss_release_request(cr); 1040} 1041 1042/************************************************************************ 1043 * Allocate memory for the adapter command structures, initialise 1044 * the request structures. 1045 * 1046 * Note that the entire set of commands are allocated in a single 1047 * contiguous slab. 1048 */ 1049static int 1050ciss_init_requests(struct ciss_softc *sc) 1051{ 1052 struct ciss_request *cr; 1053 int i; 1054 1055 debug_called(1); 1056 1057 if (bootverbose) 1058 ciss_printf(sc, "using %d of %d available commands\n", 1059 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1060 1061 /* 1062 * Create the DMA tag for commands. 1063 */ 1064 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1065 32, 0, /* alignment, boundary */ 1066 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1067 BUS_SPACE_MAXADDR, /* highaddr */ 1068 NULL, NULL, /* filter, filterarg */ 1069 CISS_COMMAND_ALLOC_SIZE * 1070 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1071 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1072 0, /* flags */ 1073 NULL, NULL, /* lockfunc, lockarg */ 1074 &sc->ciss_command_dmat)) { 1075 ciss_printf(sc, "can't allocate command DMA tag\n"); 1076 return(ENOMEM); 1077 } 1078 /* 1079 * Allocate memory and make it available for DMA. 1080 */ 1081 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1082 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1083 ciss_printf(sc, "can't allocate command memory\n"); 1084 return(ENOMEM); 1085 } 1086 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1087 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1088 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1089 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1090 1091 /* 1092 * Set up the request and command structures, push requests onto 1093 * the free queue. 1094 */ 1095 for (i = 1; i < sc->ciss_max_requests; i++) { 1096 cr = &sc->ciss_request[i]; 1097 cr->cr_sc = sc; 1098 cr->cr_tag = i; 1099 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1100 ciss_enqueue_free(cr); 1101 } 1102 return(0); 1103} 1104 1105static void 1106ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1107{ 1108 uint32_t *addr; 1109 1110 addr = arg; 1111 *addr = segs[0].ds_addr; 1112} 1113 1114/************************************************************************ 1115 * Identify the adapter, print some information about it. 1116 */ 1117static int 1118ciss_identify_adapter(struct ciss_softc *sc) 1119{ 1120 struct ciss_request *cr; 1121 int error, command_status; 1122 1123 debug_called(1); 1124 1125 cr = NULL; 1126 1127 /* 1128 * Get a request, allocate storage for the adapter data. 1129 */ 1130 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1131 (void **)&sc->ciss_id, 1132 sizeof(*sc->ciss_id))) != 0) 1133 goto out; 1134 1135 /* 1136 * Submit the request and wait for it to complete. 1137 */ 1138 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1139 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1140 goto out; 1141 } 1142 1143 /* 1144 * Check response. 1145 */ 1146 ciss_report_request(cr, &command_status, NULL); 1147 switch(command_status) { 1148 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1149 break; 1150 case CISS_CMD_STATUS_DATA_UNDERRUN: 1151 case CISS_CMD_STATUS_DATA_OVERRUN: 1152 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1153 default: 1154 ciss_printf(sc, "error reading adapter information (%s)\n", 1155 ciss_name_command_status(command_status)); 1156 error = EIO; 1157 goto out; 1158 } 1159 1160 /* sanity-check reply */ 1161 if (!sc->ciss_id->big_map_supported) { 1162 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1163 error = ENXIO; 1164 goto out; 1165 } 1166 1167#if 0 1168 /* XXX later revisions may not need this */ 1169 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1170#endif 1171 1172 /* XXX only really required for old 5300 adapters? */ 1173 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1174 1175 /* print information */ 1176 if (bootverbose) { 1177#if 0 /* XXX proxy volumes??? */ 1178 ciss_printf(sc, " %d logical drive%s configured\n", 1179 sc->ciss_id->configured_logical_drives, 1180 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1181#endif 1182 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1183 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1184 1185 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1186 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1187 ciss_printf(sc, " supported I/O methods 0x%b\n", 1188 sc->ciss_cfg->supported_methods, 1189 "\20\1READY\2simple\3performant\4MEMQ\n"); 1190 ciss_printf(sc, " active I/O method 0x%b\n", 1191 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1192 ciss_printf(sc, " 4G page base 0x%08x\n", 1193 sc->ciss_cfg->command_physlimit); 1194 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1195 sc->ciss_cfg->interrupt_coalesce_delay); 1196 ciss_printf(sc, " interrupt coalesce count %d\n", 1197 sc->ciss_cfg->interrupt_coalesce_count); 1198 ciss_printf(sc, " max outstanding commands %d\n", 1199 sc->ciss_cfg->max_outstanding_commands); 1200 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1201 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1202 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1203 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1204 } 1205 1206out: 1207 if (error) { 1208 if (sc->ciss_id != NULL) { 1209 free(sc->ciss_id, CISS_MALLOC_CLASS); 1210 sc->ciss_id = NULL; 1211 } 1212 } 1213 if (cr != NULL) 1214 ciss_release_request(cr); 1215 return(error); 1216} 1217 1218/************************************************************************ 1219 * Helper routine for generating a list of logical and physical luns. 1220 */ 1221static struct ciss_lun_report * 1222ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1223{ 1224 struct ciss_request *cr; 1225 struct ciss_command *cc; 1226 struct ciss_report_cdb *crc; 1227 struct ciss_lun_report *cll; 1228 int command_status; 1229 int report_size; 1230 int error = 0; 1231 1232 debug_called(1); 1233 1234 cr = NULL; 1235 cll = NULL; 1236 1237 /* 1238 * Get a request, allocate storage for the address list. 1239 */ 1240 if ((error = ciss_get_request(sc, &cr)) != 0) 1241 goto out; 1242 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1243 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1244 ciss_printf(sc, "can't allocate memory for lun report\n"); 1245 error = ENOMEM; 1246 goto out; 1247 } 1248 1249 /* 1250 * Build the Report Logical/Physical LUNs command. 1251 */ 1252 cc = CISS_FIND_COMMAND(cr); 1253 cr->cr_data = cll; 1254 cr->cr_length = report_size; 1255 cr->cr_flags = CISS_REQ_DATAIN; 1256 1257 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1258 cc->header.address.physical.bus = 0; 1259 cc->header.address.physical.target = 0; 1260 cc->cdb.cdb_length = sizeof(*crc); 1261 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1262 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1263 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1264 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1265 1266 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1267 bzero(crc, sizeof(*crc)); 1268 crc->opcode = opcode; 1269 crc->length = htonl(report_size); /* big-endian field */ 1270 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1271 1272 /* 1273 * Submit the request and wait for it to complete. (timeout 1274 * here should be much greater than above) 1275 */ 1276 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1277 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1278 goto out; 1279 } 1280 1281 /* 1282 * Check response. Note that data over/underrun is OK. 1283 */ 1284 ciss_report_request(cr, &command_status, NULL); 1285 switch(command_status) { 1286 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1287 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1288 break; 1289 case CISS_CMD_STATUS_DATA_OVERRUN: 1290 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1291 CISS_MAX_LOGICAL); 1292 break; 1293 default: 1294 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1295 ciss_name_command_status(command_status)); 1296 error = EIO; 1297 goto out; 1298 } 1299 ciss_release_request(cr); 1300 cr = NULL; 1301 1302out: 1303 if (cr != NULL) 1304 ciss_release_request(cr); 1305 if (error && cll != NULL) { 1306 free(cll, CISS_MALLOC_CLASS); 1307 cll = NULL; 1308 } 1309 return(cll); 1310} 1311 1312/************************************************************************ 1313 * Find logical drives on the adapter. 1314 */ 1315static int 1316ciss_init_logical(struct ciss_softc *sc) 1317{ 1318 struct ciss_lun_report *cll; 1319 int error = 0, i, j; 1320 int ndrives; 1321 1322 debug_called(1); 1323 1324 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1325 CISS_MAX_LOGICAL); 1326 if (cll == NULL) { 1327 error = ENXIO; 1328 goto out; 1329 } 1330 1331 /* sanity-check reply */ 1332 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1333 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1334 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1335 ndrives, CISS_MAX_LOGICAL); 1336 error = ENXIO; 1337 goto out; 1338 } 1339 1340 /* 1341 * Save logical drive information. 1342 */ 1343 if (bootverbose) { 1344 ciss_printf(sc, "%d logical drive%s\n", 1345 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1346 } 1347 1348 sc->ciss_logical = 1349 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1350 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1351 if (sc->ciss_logical == NULL) { 1352 error = ENXIO; 1353 goto out; 1354 } 1355 1356 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1357 sc->ciss_logical[i] = 1358 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1359 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1360 if (sc->ciss_logical[i] == NULL) { 1361 error = ENXIO; 1362 goto out; 1363 } 1364 1365 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1366 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1367 } 1368 1369 1370 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1371 if (i < ndrives) { 1372 struct ciss_ldrive *ld; 1373 int bus, target; 1374 1375 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1376 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1377 ld = &sc->ciss_logical[bus][target]; 1378 1379 ld->cl_address = cll->lun[i]; 1380 ld->cl_controller = &sc->ciss_controllers[bus]; 1381 if (ciss_identify_logical(sc, ld) != 0) 1382 continue; 1383 /* 1384 * If the drive has had media exchanged, we should bring it online. 1385 */ 1386 if (ld->cl_lstatus->media_exchanged) 1387 ciss_accept_media(sc, ld); 1388 1389 } 1390 } 1391 1392 out: 1393 if (cll != NULL) 1394 free(cll, CISS_MALLOC_CLASS); 1395 return(error); 1396} 1397 1398static int 1399ciss_init_physical(struct ciss_softc *sc) 1400{ 1401 struct ciss_lun_report *cll; 1402 int error = 0, i; 1403 int nphys; 1404 int bus, target; 1405 1406 debug_called(1); 1407 1408 bus = 0; 1409 target = 0; 1410 1411 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1412 CISS_MAX_PHYSICAL); 1413 if (cll == NULL) { 1414 error = ENXIO; 1415 goto out; 1416 } 1417 1418 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1419 1420 if (bootverbose) { 1421 ciss_printf(sc, "%d physical device%s\n", 1422 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1423 } 1424 1425 /* 1426 * Figure out the bus mapping. 1427 * Logical buses include both the local logical bus for local arrays and 1428 * proxy buses for remote arrays. Physical buses are numbered by the 1429 * controller and represent physical buses that hold physical devices. 1430 * We shift these bus numbers so that everything fits into a single flat 1431 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1432 * numbers, and the physical bus numbers are shifted to be above that. 1433 * This results in the various driver arrays being indexed as follows: 1434 * 1435 * ciss_controllers[] - indexed by logical bus 1436 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1437 * being shifted by 32. 1438 * ciss_logical[][] - indexed by logical bus 1439 * ciss_physical[][] - indexed by physical bus 1440 * 1441 * XXX This is getting more and more hackish. CISS really doesn't play 1442 * well with a standard SCSI model; devices are addressed via magic 1443 * cookies, not via b/t/l addresses. Since there is no way to store 1444 * the cookie in the CAM device object, we have to keep these lookup 1445 * tables handy so that the devices can be found quickly at the cost 1446 * of wasting memory and having a convoluted lookup scheme. This 1447 * driver should probably be converted to block interface. 1448 */ 1449 /* 1450 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1451 * controller. A proxy controller is another physical controller 1452 * behind the primary PCI controller. We need to know about this 1453 * so that BMIC commands can be properly targeted. There can be 1454 * proxy controllers attached to a single PCI controller, so 1455 * find the highest numbered one so the array can be properly 1456 * sized. 1457 */ 1458 sc->ciss_max_logical_bus = 1; 1459 for (i = 0; i < nphys; i++) { 1460 if (cll->lun[i].physical.extra_address == 0) { 1461 bus = cll->lun[i].physical.bus; 1462 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1463 } else { 1464 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1465 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1466 } 1467 } 1468 1469 sc->ciss_controllers = 1470 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1471 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1472 1473 if (sc->ciss_controllers == NULL) { 1474 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1475 error = ENOMEM; 1476 goto out; 1477 } 1478 1479 /* setup a map of controller addresses */ 1480 for (i = 0; i < nphys; i++) { 1481 if (cll->lun[i].physical.extra_address == 0) { 1482 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1483 } 1484 } 1485 1486 sc->ciss_physical = 1487 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1488 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1489 if (sc->ciss_physical == NULL) { 1490 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1491 error = ENOMEM; 1492 goto out; 1493 } 1494 1495 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1496 sc->ciss_physical[i] = 1497 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1498 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1499 if (sc->ciss_physical[i] == NULL) { 1500 ciss_printf(sc, "Could not allocate memory for target map\n"); 1501 error = ENOMEM; 1502 goto out; 1503 } 1504 } 1505 1506 ciss_filter_physical(sc, cll); 1507 1508out: 1509 if (cll != NULL) 1510 free(cll, CISS_MALLOC_CLASS); 1511 1512 return(error); 1513} 1514 1515static int 1516ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1517{ 1518 u_int32_t ea; 1519 int i, nphys; 1520 int bus, target; 1521 1522 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1523 for (i = 0; i < nphys; i++) { 1524 if (cll->lun[i].physical.extra_address == 0) 1525 continue; 1526 1527 /* 1528 * Filter out devices that we don't want. Level 3 LUNs could 1529 * probably be supported, but the docs don't give enough of a 1530 * hint to know how. 1531 * 1532 * The mode field of the physical address is likely set to have 1533 * hard disks masked out. Honor it unless the user has overridden 1534 * us with the tunable. We also munge the inquiry data for these 1535 * disks so that they only show up as passthrough devices. Keeping 1536 * them visible in this fashion is useful for doing things like 1537 * flashing firmware. 1538 */ 1539 ea = cll->lun[i].physical.extra_address; 1540 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1541 (CISS_EXTRA_MODE2(ea) == 0x3)) 1542 continue; 1543 if ((ciss_expose_hidden_physical == 0) && 1544 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1545 continue; 1546 1547 /* 1548 * Note: CISS firmware numbers physical busses starting at '1', not 1549 * '0'. This numbering is internal to the firmware and is only 1550 * used as a hint here. 1551 */ 1552 bus = CISS_EXTRA_BUS2(ea) - 1; 1553 target = CISS_EXTRA_TARGET2(ea); 1554 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1555 sc->ciss_physical[bus][target].cp_online = 1; 1556 } 1557 1558 return (0); 1559} 1560 1561static int 1562ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1563{ 1564 struct ciss_request *cr; 1565 struct ciss_command *cc; 1566 struct scsi_inquiry *inq; 1567 int error; 1568 int command_status; 1569 1570 cr = NULL; 1571 1572 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1573 1574 if ((error = ciss_get_request(sc, &cr)) != 0) 1575 goto out; 1576 1577 cc = CISS_FIND_COMMAND(cr); 1578 cr->cr_data = &ld->cl_geometry; 1579 cr->cr_length = sizeof(ld->cl_geometry); 1580 cr->cr_flags = CISS_REQ_DATAIN; 1581 1582 cc->header.address = ld->cl_address; 1583 cc->cdb.cdb_length = 6; 1584 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1585 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1586 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1587 cc->cdb.timeout = 30; 1588 1589 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1590 inq->opcode = INQUIRY; 1591 inq->byte2 = SI_EVPD; 1592 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1593 inq->length = sizeof(ld->cl_geometry); 1594 1595 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1596 ciss_printf(sc, "error getting geometry (%d)\n", error); 1597 goto out; 1598 } 1599 1600 ciss_report_request(cr, &command_status, NULL); 1601 switch(command_status) { 1602 case CISS_CMD_STATUS_SUCCESS: 1603 case CISS_CMD_STATUS_DATA_UNDERRUN: 1604 break; 1605 case CISS_CMD_STATUS_DATA_OVERRUN: 1606 ciss_printf(sc, "WARNING: Data overrun\n"); 1607 break; 1608 default: 1609 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1610 ciss_name_command_status(command_status)); 1611 break; 1612 } 1613 1614out: 1615 if (cr != NULL) 1616 ciss_release_request(cr); 1617 return(error); 1618} 1619/************************************************************************ 1620 * Identify a logical drive, initialise state related to it. 1621 */ 1622static int 1623ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1624{ 1625 struct ciss_request *cr; 1626 struct ciss_command *cc; 1627 struct ciss_bmic_cdb *cbc; 1628 int error, command_status; 1629 1630 debug_called(1); 1631 1632 cr = NULL; 1633 1634 /* 1635 * Build a BMIC request to fetch the drive ID. 1636 */ 1637 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1638 (void **)&ld->cl_ldrive, 1639 sizeof(*ld->cl_ldrive))) != 0) 1640 goto out; 1641 cc = CISS_FIND_COMMAND(cr); 1642 cc->header.address = *ld->cl_controller; /* target controller */ 1643 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1644 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1645 1646 /* 1647 * Submit the request and wait for it to complete. 1648 */ 1649 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1650 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1651 goto out; 1652 } 1653 1654 /* 1655 * Check response. 1656 */ 1657 ciss_report_request(cr, &command_status, NULL); 1658 switch(command_status) { 1659 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1660 break; 1661 case CISS_CMD_STATUS_DATA_UNDERRUN: 1662 case CISS_CMD_STATUS_DATA_OVERRUN: 1663 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1664 default: 1665 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1666 ciss_name_command_status(command_status)); 1667 error = EIO; 1668 goto out; 1669 } 1670 ciss_release_request(cr); 1671 cr = NULL; 1672 1673 /* 1674 * Build a CISS BMIC command to get the logical drive status. 1675 */ 1676 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1677 goto out; 1678 1679 /* 1680 * Get the logical drive geometry. 1681 */ 1682 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1683 goto out; 1684 1685 /* 1686 * Print the drive's basic characteristics. 1687 */ 1688 if (bootverbose) { 1689 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1690 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1691 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1692 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1693 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1694 ld->cl_ldrive->block_size)); 1695 1696 ciss_print_ldrive(sc, ld); 1697 } 1698out: 1699 if (error != 0) { 1700 /* make the drive not-exist */ 1701 ld->cl_status = CISS_LD_NONEXISTENT; 1702 if (ld->cl_ldrive != NULL) { 1703 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1704 ld->cl_ldrive = NULL; 1705 } 1706 if (ld->cl_lstatus != NULL) { 1707 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1708 ld->cl_lstatus = NULL; 1709 } 1710 } 1711 if (cr != NULL) 1712 ciss_release_request(cr); 1713 1714 return(error); 1715} 1716 1717/************************************************************************ 1718 * Get status for a logical drive. 1719 * 1720 * XXX should we also do this in response to Test Unit Ready? 1721 */ 1722static int 1723ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1724{ 1725 struct ciss_request *cr; 1726 struct ciss_command *cc; 1727 struct ciss_bmic_cdb *cbc; 1728 int error, command_status; 1729 1730 /* 1731 * Build a CISS BMIC command to get the logical drive status. 1732 */ 1733 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1734 (void **)&ld->cl_lstatus, 1735 sizeof(*ld->cl_lstatus))) != 0) 1736 goto out; 1737 cc = CISS_FIND_COMMAND(cr); 1738 cc->header.address = *ld->cl_controller; /* target controller */ 1739 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1740 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1741 1742 /* 1743 * Submit the request and wait for it to complete. 1744 */ 1745 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1746 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1747 goto out; 1748 } 1749 1750 /* 1751 * Check response. 1752 */ 1753 ciss_report_request(cr, &command_status, NULL); 1754 switch(command_status) { 1755 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1756 break; 1757 case CISS_CMD_STATUS_DATA_UNDERRUN: 1758 case CISS_CMD_STATUS_DATA_OVERRUN: 1759 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1760 default: 1761 ciss_printf(sc, "error reading logical drive status (%s)\n", 1762 ciss_name_command_status(command_status)); 1763 error = EIO; 1764 goto out; 1765 } 1766 1767 /* 1768 * Set the drive's summary status based on the returned status. 1769 * 1770 * XXX testing shows that a failed JBOD drive comes back at next 1771 * boot in "queued for expansion" mode. WTF? 1772 */ 1773 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1774 1775out: 1776 if (cr != NULL) 1777 ciss_release_request(cr); 1778 return(error); 1779} 1780 1781/************************************************************************ 1782 * Notify the adapter of a config update. 1783 */ 1784static int 1785ciss_update_config(struct ciss_softc *sc) 1786{ 1787 int i; 1788 1789 debug_called(1); 1790 1791 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1792 for (i = 0; i < 1000; i++) { 1793 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1794 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1795 return(0); 1796 } 1797 DELAY(1000); 1798 } 1799 return(1); 1800} 1801 1802/************************************************************************ 1803 * Accept new media into a logical drive. 1804 * 1805 * XXX The drive has previously been offline; it would be good if we 1806 * could make sure it's not open right now. 1807 */ 1808static int 1809ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1810{ 1811 struct ciss_request *cr; 1812 struct ciss_command *cc; 1813 struct ciss_bmic_cdb *cbc; 1814 int command_status; 1815 int error = 0, ldrive; 1816 1817 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1818 1819 debug(0, "bringing logical drive %d back online"); 1820 1821 /* 1822 * Build a CISS BMIC command to bring the drive back online. 1823 */ 1824 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1825 NULL, 0)) != 0) 1826 goto out; 1827 cc = CISS_FIND_COMMAND(cr); 1828 cc->header.address = *ld->cl_controller; /* target controller */ 1829 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1830 cbc->log_drive = ldrive; 1831 1832 /* 1833 * Submit the request and wait for it to complete. 1834 */ 1835 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1836 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1837 goto out; 1838 } 1839 1840 /* 1841 * Check response. 1842 */ 1843 ciss_report_request(cr, &command_status, NULL); 1844 switch(command_status) { 1845 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1846 /* we should get a logical drive status changed event here */ 1847 break; 1848 default: 1849 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1850 ciss_name_command_status(command_status)); 1851 break; 1852 } 1853 1854out: 1855 if (cr != NULL) 1856 ciss_release_request(cr); 1857 return(error); 1858} 1859 1860/************************************************************************ 1861 * Release adapter resources. 1862 */ 1863static void 1864ciss_free(struct ciss_softc *sc) 1865{ 1866 struct ciss_request *cr; 1867 int i, j; 1868 1869 debug_called(1); 1870 1871 /* we're going away */ 1872 sc->ciss_flags |= CISS_FLAG_ABORTING; 1873 1874 /* terminate the periodic heartbeat routine */ 1875 callout_stop(&sc->ciss_periodic); 1876 1877 /* cancel the Event Notify chain */ 1878 ciss_notify_abort(sc); 1879 1880 ciss_kill_notify_thread(sc); 1881 1882 /* disconnect from CAM */ 1883 if (sc->ciss_cam_sim) { 1884 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1885 if (sc->ciss_cam_sim[i]) { 1886 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1887 cam_sim_free(sc->ciss_cam_sim[i], 0); 1888 } 1889 } 1890 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1891 CISS_PHYSICAL_BASE; i++) { 1892 if (sc->ciss_cam_sim[i]) { 1893 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1894 cam_sim_free(sc->ciss_cam_sim[i], 0); 1895 } 1896 } 1897 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1898 } 1899 if (sc->ciss_cam_devq) 1900 cam_simq_free(sc->ciss_cam_devq); 1901 1902 /* remove the control device */ 1903 mtx_unlock(&sc->ciss_mtx); 1904 if (sc->ciss_dev_t != NULL) 1905 destroy_dev(sc->ciss_dev_t); 1906 1907 /* Final cleanup of the callout. */ 1908 callout_drain(&sc->ciss_periodic); 1909 mtx_destroy(&sc->ciss_mtx); 1910 1911 /* free the controller data */ 1912 if (sc->ciss_id != NULL) 1913 free(sc->ciss_id, CISS_MALLOC_CLASS); 1914 1915 /* release I/O resources */ 1916 if (sc->ciss_regs_resource != NULL) 1917 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1918 sc->ciss_regs_rid, sc->ciss_regs_resource); 1919 if (sc->ciss_cfg_resource != NULL) 1920 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1921 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1922 if (sc->ciss_intr != NULL) 1923 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1924 if (sc->ciss_irq_resource != NULL) 1925 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1926 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1927 if (sc->ciss_msi) 1928 pci_release_msi(sc->ciss_dev); 1929 1930 while ((cr = ciss_dequeue_free(sc)) != NULL) 1931 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1932 if (sc->ciss_buffer_dmat) 1933 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1934 1935 /* destroy command memory and DMA tag */ 1936 if (sc->ciss_command != NULL) { 1937 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1938 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1939 } 1940 if (sc->ciss_command_dmat) 1941 bus_dma_tag_destroy(sc->ciss_command_dmat); 1942 1943 if (sc->ciss_reply) { 1944 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1945 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1946 } 1947 if (sc->ciss_reply_dmat) 1948 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1949 1950 /* destroy DMA tags */ 1951 if (sc->ciss_parent_dmat) 1952 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1953 if (sc->ciss_logical) { 1954 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1955 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1956 if (sc->ciss_logical[i][j].cl_ldrive) 1957 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1958 if (sc->ciss_logical[i][j].cl_lstatus) 1959 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1960 } 1961 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1962 } 1963 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1964 } 1965 1966 if (sc->ciss_physical) { 1967 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1968 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1969 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1970 } 1971 1972 if (sc->ciss_controllers) 1973 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1974 1975} 1976 1977/************************************************************************ 1978 * Give a command to the adapter. 1979 * 1980 * Note that this uses the simple transport layer directly. If we 1981 * want to add support for other layers, we'll need a switch of some 1982 * sort. 1983 * 1984 * Note that the simple transport layer has no way of refusing a 1985 * command; we only have as many request structures as the adapter 1986 * supports commands, so we don't have to check (this presumes that 1987 * the adapter can handle commands as fast as we throw them at it). 1988 */ 1989static int 1990ciss_start(struct ciss_request *cr) 1991{ 1992 struct ciss_command *cc; /* XXX debugging only */ 1993 int error; 1994 1995 cc = CISS_FIND_COMMAND(cr); 1996 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1997 1998 /* 1999 * Map the request's data. 2000 */ 2001 if ((error = ciss_map_request(cr))) 2002 return(error); 2003 2004#if 0 2005 ciss_print_request(cr); 2006#endif 2007 2008 return(0); 2009} 2010 2011/************************************************************************ 2012 * Fetch completed request(s) from the adapter, queue them for 2013 * completion handling. 2014 * 2015 * Note that this uses the simple transport layer directly. If we 2016 * want to add support for other layers, we'll need a switch of some 2017 * sort. 2018 * 2019 * Note that the simple transport mechanism does not require any 2020 * reentrancy protection; the OPQ read is atomic. If there is a 2021 * chance of a race with something else that might move the request 2022 * off the busy list, then we will have to lock against that 2023 * (eg. timeouts, etc.) 2024 */ 2025static void 2026ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2027{ 2028 struct ciss_request *cr; 2029 struct ciss_command *cc; 2030 u_int32_t tag, index; 2031 2032 debug_called(3); 2033 2034 /* 2035 * Loop quickly taking requests from the adapter and moving them 2036 * to the completed queue. 2037 */ 2038 for (;;) { 2039 2040 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2041 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2042 break; 2043 index = tag >> 2; 2044 debug(2, "completed command %d%s", index, 2045 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2046 if (index >= sc->ciss_max_requests) { 2047 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2048 continue; 2049 } 2050 cr = &(sc->ciss_request[index]); 2051 cc = CISS_FIND_COMMAND(cr); 2052 cc->header.host_tag = tag; /* not updated by adapter */ 2053 ciss_enqueue_complete(cr, qh); 2054 } 2055 2056} 2057 2058static void 2059ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2060{ 2061 struct ciss_request *cr; 2062 struct ciss_command *cc; 2063 u_int32_t tag, index; 2064 2065 debug_called(3); 2066 2067 /* 2068 * Loop quickly taking requests from the adapter and moving them 2069 * to the completed queue. 2070 */ 2071 for (;;) { 2072 tag = sc->ciss_reply[sc->ciss_rqidx]; 2073 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2074 break; 2075 index = tag >> 2; 2076 debug(2, "completed command %d%s\n", index, 2077 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2078 if (index < sc->ciss_max_requests) { 2079 cr = &(sc->ciss_request[index]); 2080 cc = CISS_FIND_COMMAND(cr); 2081 cc->header.host_tag = tag; /* not updated by adapter */ 2082 ciss_enqueue_complete(cr, qh); 2083 } else { 2084 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2085 } 2086 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2087 sc->ciss_rqidx = 0; 2088 sc->ciss_cycle ^= 1; 2089 } 2090 } 2091 2092} 2093 2094/************************************************************************ 2095 * Take an interrupt from the adapter. 2096 */ 2097static void 2098ciss_intr(void *arg) 2099{ 2100 cr_qhead_t qh; 2101 struct ciss_softc *sc = (struct ciss_softc *)arg; 2102 2103 /* 2104 * The only interrupt we recognise indicates that there are 2105 * entries in the outbound post queue. 2106 */ 2107 STAILQ_INIT(&qh); 2108 ciss_done(sc, &qh); 2109 mtx_lock(&sc->ciss_mtx); 2110 ciss_complete(sc, &qh); 2111 mtx_unlock(&sc->ciss_mtx); 2112} 2113 2114static void 2115ciss_perf_intr(void *arg) 2116{ 2117 struct ciss_softc *sc = (struct ciss_softc *)arg; 2118 2119 /* Clear the interrupt and flush the bridges. Docs say that the flush 2120 * needs to be done twice, which doesn't seem right. 2121 */ 2122 CISS_TL_PERF_CLEAR_INT(sc); 2123 CISS_TL_PERF_FLUSH_INT(sc); 2124 2125 ciss_perf_msi_intr(sc); 2126} 2127 2128static void 2129ciss_perf_msi_intr(void *arg) 2130{ 2131 cr_qhead_t qh; 2132 struct ciss_softc *sc = (struct ciss_softc *)arg; 2133 2134 STAILQ_INIT(&qh); 2135 ciss_perf_done(sc, &qh); 2136 mtx_lock(&sc->ciss_mtx); 2137 ciss_complete(sc, &qh); 2138 mtx_unlock(&sc->ciss_mtx); 2139} 2140 2141 2142/************************************************************************ 2143 * Process completed requests. 2144 * 2145 * Requests can be completed in three fashions: 2146 * 2147 * - by invoking a callback function (cr_complete is non-null) 2148 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2149 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2150 */ 2151static void 2152ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2153{ 2154 struct ciss_request *cr; 2155 2156 debug_called(2); 2157 2158 /* 2159 * Loop taking requests off the completed queue and performing 2160 * completion processing on them. 2161 */ 2162 for (;;) { 2163 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2164 break; 2165 ciss_unmap_request(cr); 2166 2167 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2168 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2169 cr->cr_flags &= ~CISS_REQ_BUSY; 2170 2171 /* 2172 * If the request has a callback, invoke it. 2173 */ 2174 if (cr->cr_complete != NULL) { 2175 cr->cr_complete(cr); 2176 continue; 2177 } 2178 2179 /* 2180 * If someone is sleeping on this request, wake them up. 2181 */ 2182 if (cr->cr_flags & CISS_REQ_SLEEP) { 2183 cr->cr_flags &= ~CISS_REQ_SLEEP; 2184 wakeup(cr); 2185 continue; 2186 } 2187 2188 /* 2189 * If someone is polling this request for completion, signal. 2190 */ 2191 if (cr->cr_flags & CISS_REQ_POLL) { 2192 cr->cr_flags &= ~CISS_REQ_POLL; 2193 continue; 2194 } 2195 2196 /* 2197 * Give up and throw the request back on the free queue. This 2198 * should never happen; resources will probably be lost. 2199 */ 2200 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2201 ciss_enqueue_free(cr); 2202 } 2203} 2204 2205/************************************************************************ 2206 * Report on the completion status of a request, and pass back SCSI 2207 * and command status values. 2208 */ 2209static int 2210_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2211{ 2212 struct ciss_command *cc; 2213 struct ciss_error_info *ce; 2214 2215 debug_called(2); 2216 2217 cc = CISS_FIND_COMMAND(cr); 2218 ce = (struct ciss_error_info *)&(cc->sg[0]); 2219 2220 /* 2221 * We don't consider data under/overrun an error for the Report 2222 * Logical/Physical LUNs commands. 2223 */ 2224 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2225 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2226 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2227 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2228 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2229 (cc->cdb.cdb[0] == INQUIRY))) { 2230 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2231 debug(2, "ignoring irrelevant under/overrun error"); 2232 } 2233 2234 /* 2235 * Check the command's error bit, if clear, there's no status and 2236 * everything is OK. 2237 */ 2238 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2239 if (scsi_status != NULL) 2240 *scsi_status = SCSI_STATUS_OK; 2241 if (command_status != NULL) 2242 *command_status = CISS_CMD_STATUS_SUCCESS; 2243 return(0); 2244 } else { 2245 if (command_status != NULL) 2246 *command_status = ce->command_status; 2247 if (scsi_status != NULL) { 2248 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2249 *scsi_status = ce->scsi_status; 2250 } else { 2251 *scsi_status = -1; 2252 } 2253 } 2254 if (bootverbose) 2255 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2256 ce->command_status, ciss_name_command_status(ce->command_status), 2257 ce->scsi_status); 2258 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2259 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2260 ce->additional_error_info.invalid_command.offense_size, 2261 ce->additional_error_info.invalid_command.offense_offset, 2262 ce->additional_error_info.invalid_command.offense_value, 2263 func); 2264 } 2265 } 2266#if 0 2267 ciss_print_request(cr); 2268#endif 2269 return(1); 2270} 2271 2272/************************************************************************ 2273 * Issue a request and don't return until it's completed. 2274 * 2275 * Depending on adapter status, we may poll or sleep waiting for 2276 * completion. 2277 */ 2278static int 2279ciss_synch_request(struct ciss_request *cr, int timeout) 2280{ 2281 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2282 return(ciss_wait_request(cr, timeout)); 2283 } else { 2284 return(ciss_poll_request(cr, timeout)); 2285 } 2286} 2287 2288/************************************************************************ 2289 * Issue a request and poll for completion. 2290 * 2291 * Timeout in milliseconds. 2292 */ 2293static int 2294ciss_poll_request(struct ciss_request *cr, int timeout) 2295{ 2296 cr_qhead_t qh; 2297 struct ciss_softc *sc; 2298 int error; 2299 2300 debug_called(2); 2301 2302 STAILQ_INIT(&qh); 2303 sc = cr->cr_sc; 2304 cr->cr_flags |= CISS_REQ_POLL; 2305 if ((error = ciss_start(cr)) != 0) 2306 return(error); 2307 2308 do { 2309 if (sc->ciss_perf) 2310 ciss_perf_done(sc, &qh); 2311 else 2312 ciss_done(sc, &qh); 2313 ciss_complete(sc, &qh); 2314 if (!(cr->cr_flags & CISS_REQ_POLL)) 2315 return(0); 2316 DELAY(1000); 2317 } while (timeout-- >= 0); 2318 return(EWOULDBLOCK); 2319} 2320 2321/************************************************************************ 2322 * Issue a request and sleep waiting for completion. 2323 * 2324 * Timeout in milliseconds. Note that a spurious wakeup will reset 2325 * the timeout. 2326 */ 2327static int 2328ciss_wait_request(struct ciss_request *cr, int timeout) 2329{ 2330 int error; 2331 2332 debug_called(2); 2333 2334 cr->cr_flags |= CISS_REQ_SLEEP; 2335 if ((error = ciss_start(cr)) != 0) 2336 return(error); 2337 2338 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2339 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2340 } 2341 return(error); 2342} 2343 2344#if 0 2345/************************************************************************ 2346 * Abort a request. Note that a potential exists here to race the 2347 * request being completed; the caller must deal with this. 2348 */ 2349static int 2350ciss_abort_request(struct ciss_request *ar) 2351{ 2352 struct ciss_request *cr; 2353 struct ciss_command *cc; 2354 struct ciss_message_cdb *cmc; 2355 int error; 2356 2357 debug_called(1); 2358 2359 /* get a request */ 2360 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2361 return(error); 2362 2363 /* build the abort command */ 2364 cc = CISS_FIND_COMMAND(cr); 2365 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2366 cc->header.address.physical.target = 0; 2367 cc->header.address.physical.bus = 0; 2368 cc->cdb.cdb_length = sizeof(*cmc); 2369 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2370 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2371 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2372 cc->cdb.timeout = 30; 2373 2374 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2375 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2376 cmc->type = CISS_MESSAGE_ABORT_TASK; 2377 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2378 2379 /* 2380 * Send the request and wait for a response. If we believe we 2381 * aborted the request OK, clear the flag that indicates it's 2382 * running. 2383 */ 2384 error = ciss_synch_request(cr, 35 * 1000); 2385 if (!error) 2386 error = ciss_report_request(cr, NULL, NULL); 2387 ciss_release_request(cr); 2388 2389 return(error); 2390} 2391#endif 2392 2393 2394/************************************************************************ 2395 * Fetch and initialise a request 2396 */ 2397static int 2398ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2399{ 2400 struct ciss_request *cr; 2401 2402 debug_called(2); 2403 2404 /* 2405 * Get a request and clean it up. 2406 */ 2407 if ((cr = ciss_dequeue_free(sc)) == NULL) 2408 return(ENOMEM); 2409 2410 cr->cr_data = NULL; 2411 cr->cr_flags = 0; 2412 cr->cr_complete = NULL; 2413 cr->cr_private = NULL; 2414 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2415 2416 ciss_preen_command(cr); 2417 *crp = cr; 2418 return(0); 2419} 2420 2421static void 2422ciss_preen_command(struct ciss_request *cr) 2423{ 2424 struct ciss_command *cc; 2425 u_int32_t cmdphys; 2426 2427 /* 2428 * Clean up the command structure. 2429 * 2430 * Note that we set up the error_info structure here, since the 2431 * length can be overwritten by any command. 2432 */ 2433 cc = CISS_FIND_COMMAND(cr); 2434 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2435 cc->header.sg_total = 0; 2436 cc->header.host_tag = cr->cr_tag << 2; 2437 cc->header.host_tag_zeroes = 0; 2438 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2439 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2440 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2441} 2442 2443/************************************************************************ 2444 * Release a request to the free list. 2445 */ 2446static void 2447ciss_release_request(struct ciss_request *cr) 2448{ 2449 struct ciss_softc *sc; 2450 2451 debug_called(2); 2452 2453 sc = cr->cr_sc; 2454 2455 /* release the request to the free queue */ 2456 ciss_requeue_free(cr); 2457} 2458 2459/************************************************************************ 2460 * Allocate a request that will be used to send a BMIC command. Do some 2461 * of the common setup here to avoid duplicating it everywhere else. 2462 */ 2463static int 2464ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2465 int opcode, void **bufp, size_t bufsize) 2466{ 2467 struct ciss_request *cr; 2468 struct ciss_command *cc; 2469 struct ciss_bmic_cdb *cbc; 2470 void *buf; 2471 int error; 2472 int dataout; 2473 2474 debug_called(2); 2475 2476 cr = NULL; 2477 buf = NULL; 2478 2479 /* 2480 * Get a request. 2481 */ 2482 if ((error = ciss_get_request(sc, &cr)) != 0) 2483 goto out; 2484 2485 /* 2486 * Allocate data storage if requested, determine the data direction. 2487 */ 2488 dataout = 0; 2489 if ((bufsize > 0) && (bufp != NULL)) { 2490 if (*bufp == NULL) { 2491 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2492 error = ENOMEM; 2493 goto out; 2494 } 2495 } else { 2496 buf = *bufp; 2497 dataout = 1; /* we are given a buffer, so we are writing */ 2498 } 2499 } 2500 2501 /* 2502 * Build a CISS BMIC command to get the logical drive ID. 2503 */ 2504 cr->cr_data = buf; 2505 cr->cr_length = bufsize; 2506 if (!dataout) 2507 cr->cr_flags = CISS_REQ_DATAIN; 2508 2509 cc = CISS_FIND_COMMAND(cr); 2510 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2511 cc->header.address.physical.bus = 0; 2512 cc->header.address.physical.target = 0; 2513 cc->cdb.cdb_length = sizeof(*cbc); 2514 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2515 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2516 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2517 cc->cdb.timeout = 0; 2518 2519 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2520 bzero(cbc, sizeof(*cbc)); 2521 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2522 cbc->bmic_opcode = opcode; 2523 cbc->size = htons((u_int16_t)bufsize); 2524 2525out: 2526 if (error) { 2527 if (cr != NULL) 2528 ciss_release_request(cr); 2529 } else { 2530 *crp = cr; 2531 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2532 *bufp = buf; 2533 } 2534 return(error); 2535} 2536 2537/************************************************************************ 2538 * Handle a command passed in from userspace. 2539 */ 2540static int 2541ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2542{ 2543 struct ciss_request *cr; 2544 struct ciss_command *cc; 2545 struct ciss_error_info *ce; 2546 int error = 0; 2547 2548 debug_called(1); 2549 2550 cr = NULL; 2551 2552 /* 2553 * Get a request. 2554 */ 2555 while (ciss_get_request(sc, &cr) != 0) 2556 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2557 cc = CISS_FIND_COMMAND(cr); 2558 2559 /* 2560 * Allocate an in-kernel databuffer if required, copy in user data. 2561 */ 2562 cr->cr_length = ioc->buf_size; 2563 if (ioc->buf_size > 0) { 2564 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2565 error = ENOMEM; 2566 goto out; 2567 } 2568 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2569 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2570 goto out; 2571 } 2572 } 2573 2574 /* 2575 * Build the request based on the user command. 2576 */ 2577 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2578 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2579 2580 /* XXX anything else to populate here? */ 2581 2582 /* 2583 * Run the command. 2584 */ 2585 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2586 debug(0, "request failed - %d", error); 2587 goto out; 2588 } 2589 2590 /* 2591 * Check to see if the command succeeded. 2592 */ 2593 ce = (struct ciss_error_info *)&(cc->sg[0]); 2594 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2595 bzero(ce, sizeof(*ce)); 2596 2597 /* 2598 * Copy the results back to the user. 2599 */ 2600 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2601 if ((ioc->buf_size > 0) && 2602 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2603 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2604 goto out; 2605 } 2606 2607 /* done OK */ 2608 error = 0; 2609 2610out: 2611 if ((cr != NULL) && (cr->cr_data != NULL)) 2612 free(cr->cr_data, CISS_MALLOC_CLASS); 2613 if (cr != NULL) 2614 ciss_release_request(cr); 2615 return(error); 2616} 2617 2618/************************************************************************ 2619 * Map a request into bus-visible space, initialise the scatter/gather 2620 * list. 2621 */ 2622static int 2623ciss_map_request(struct ciss_request *cr) 2624{ 2625 struct ciss_softc *sc; 2626 int error = 0; 2627 2628 debug_called(2); 2629 2630 sc = cr->cr_sc; 2631 2632 /* check that mapping is necessary */ 2633 if (cr->cr_flags & CISS_REQ_MAPPED) 2634 return(0); 2635 2636 cr->cr_flags |= CISS_REQ_MAPPED; 2637 2638 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2639 BUS_DMASYNC_PREWRITE); 2640 2641 if (cr->cr_data != NULL) { 2642 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2643 cr->cr_data, cr->cr_length, 2644 ciss_request_map_helper, cr, 0); 2645 if (error != 0) 2646 return (error); 2647 } else { 2648 /* 2649 * Post the command to the adapter. 2650 */ 2651 cr->cr_sg_tag = CISS_SG_NONE; 2652 cr->cr_flags |= CISS_REQ_BUSY; 2653 if (sc->ciss_perf) 2654 CISS_TL_PERF_POST_CMD(sc, cr); 2655 else 2656 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2657 } 2658 2659 return(0); 2660} 2661 2662static void 2663ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2664{ 2665 struct ciss_command *cc; 2666 struct ciss_request *cr; 2667 struct ciss_softc *sc; 2668 int i; 2669 2670 debug_called(2); 2671 2672 cr = (struct ciss_request *)arg; 2673 sc = cr->cr_sc; 2674 cc = CISS_FIND_COMMAND(cr); 2675 2676 for (i = 0; i < nseg; i++) { 2677 cc->sg[i].address = segs[i].ds_addr; 2678 cc->sg[i].length = segs[i].ds_len; 2679 cc->sg[i].extension = 0; 2680 } 2681 /* we leave the s/g table entirely within the command */ 2682 cc->header.sg_in_list = nseg; 2683 cc->header.sg_total = nseg; 2684 2685 if (cr->cr_flags & CISS_REQ_DATAIN) 2686 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2687 if (cr->cr_flags & CISS_REQ_DATAOUT) 2688 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2689 2690 if (nseg == 1) 2691 cr->cr_sg_tag = CISS_SG_NONE; 2692 else if (nseg == 1) 2693 cr->cr_sg_tag = CISS_SG_1; 2694 else if (nseg == 2) 2695 cr->cr_sg_tag = CISS_SG_2; 2696 else if (nseg <= 4) 2697 cr->cr_sg_tag = CISS_SG_4; 2698 else if (nseg <= 8) 2699 cr->cr_sg_tag = CISS_SG_8; 2700 else if (nseg <= 16) 2701 cr->cr_sg_tag = CISS_SG_16; 2702 else if (nseg <= 32) 2703 cr->cr_sg_tag = CISS_SG_32; 2704 else 2705 cr->cr_sg_tag = CISS_SG_MAX; 2706 2707 /* 2708 * Post the command to the adapter. 2709 */ 2710 cr->cr_flags |= CISS_REQ_BUSY; 2711 if (sc->ciss_perf) 2712 CISS_TL_PERF_POST_CMD(sc, cr); 2713 else 2714 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2715} 2716 2717/************************************************************************ 2718 * Unmap a request from bus-visible space. 2719 */ 2720static void 2721ciss_unmap_request(struct ciss_request *cr) 2722{ 2723 struct ciss_softc *sc; 2724 2725 debug_called(2); 2726 2727 sc = cr->cr_sc; 2728 2729 /* check that unmapping is necessary */ 2730 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2731 return; 2732 2733 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2734 BUS_DMASYNC_POSTWRITE); 2735 2736 if (cr->cr_data == NULL) 2737 goto out; 2738 2739 if (cr->cr_flags & CISS_REQ_DATAIN) 2740 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2741 if (cr->cr_flags & CISS_REQ_DATAOUT) 2742 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2743 2744 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2745out: 2746 cr->cr_flags &= ~CISS_REQ_MAPPED; 2747} 2748 2749/************************************************************************ 2750 * Attach the driver to CAM. 2751 * 2752 * We put all the logical drives on a single SCSI bus. 2753 */ 2754static int 2755ciss_cam_init(struct ciss_softc *sc) 2756{ 2757 int i, maxbus; 2758 2759 debug_called(1); 2760 2761 /* 2762 * Allocate a devq. We can reuse this for the masked physical 2763 * devices if we decide to export these as well. 2764 */ 2765 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2766 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2767 return(ENOMEM); 2768 } 2769 2770 /* 2771 * Create a SIM. 2772 * 2773 * This naturally wastes a bit of memory. The alternative is to allocate 2774 * and register each bus as it is found, and then track them on a linked 2775 * list. Unfortunately, the driver has a few places where it needs to 2776 * look up the SIM based solely on bus number, and it's unclear whether 2777 * a list traversal would work for these situations. 2778 */ 2779 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2780 CISS_PHYSICAL_BASE); 2781 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2782 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2783 if (sc->ciss_cam_sim == NULL) { 2784 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2785 return(ENOMEM); 2786 } 2787 2788 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2789 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2790 "ciss", sc, 2791 device_get_unit(sc->ciss_dev), 2792 &sc->ciss_mtx, 2793 2, 2794 sc->ciss_max_requests - 2, 2795 sc->ciss_cam_devq)) == NULL) { 2796 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2797 return(ENOMEM); 2798 } 2799 2800 /* 2801 * Register bus with this SIM. 2802 */ 2803 mtx_lock(&sc->ciss_mtx); 2804 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2805 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2806 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2807 mtx_unlock(&sc->ciss_mtx); 2808 return (ENXIO); 2809 } 2810 } 2811 mtx_unlock(&sc->ciss_mtx); 2812 } 2813 2814 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2815 CISS_PHYSICAL_BASE; i++) { 2816 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2817 "ciss", sc, 2818 device_get_unit(sc->ciss_dev), 2819 &sc->ciss_mtx, 1, 2820 sc->ciss_max_requests - 2, 2821 sc->ciss_cam_devq)) == NULL) { 2822 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2823 return (ENOMEM); 2824 } 2825 2826 mtx_lock(&sc->ciss_mtx); 2827 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2828 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2829 mtx_unlock(&sc->ciss_mtx); 2830 return (ENXIO); 2831 } 2832 mtx_unlock(&sc->ciss_mtx); 2833 } 2834 2835 /* 2836 * Initiate a rescan of the bus. 2837 */ 2838 mtx_lock(&sc->ciss_mtx); 2839 ciss_cam_rescan_all(sc); 2840 mtx_unlock(&sc->ciss_mtx); 2841 2842 return(0); 2843} 2844 2845/************************************************************************ 2846 * Initiate a rescan of the 'logical devices' SIM 2847 */ 2848static void 2849ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2850{ 2851 struct cam_path *path; 2852 union ccb *ccb; 2853 2854 debug_called(1); 2855 2856 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2857 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2858 return; 2859 } 2860 2861 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2862 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2863 ciss_printf(sc, "rescan failed (can't create path)\n"); 2864 free(ccb, CISS_MALLOC_CLASS); 2865 return; 2866 } 2867 2868 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2869 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2870 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2871 ccb->crcn.flags = CAM_FLAG_NONE; 2872 xpt_action(ccb); 2873 2874 /* scan is now in progress */ 2875} 2876 2877static void 2878ciss_cam_rescan_all(struct ciss_softc *sc) 2879{ 2880 int i; 2881 2882 /* Rescan the logical buses */ 2883 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2884 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2885 /* Rescan the physical buses */ 2886 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2887 CISS_PHYSICAL_BASE; i++) 2888 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2889} 2890 2891static void 2892ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2893{ 2894 xpt_free_path(ccb->ccb_h.path); 2895 free(ccb, CISS_MALLOC_CLASS); 2896} 2897 2898/************************************************************************ 2899 * Handle requests coming from CAM 2900 */ 2901static void 2902ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2903{ 2904 struct ciss_softc *sc; 2905 struct ccb_scsiio *csio; 2906 int bus, target; 2907 int physical; 2908 2909 sc = cam_sim_softc(sim); 2910 bus = cam_sim_bus(sim); 2911 csio = (struct ccb_scsiio *)&ccb->csio; 2912 target = csio->ccb_h.target_id; 2913 physical = CISS_IS_PHYSICAL(bus); 2914 2915 switch (ccb->ccb_h.func_code) { 2916 2917 /* perform SCSI I/O */ 2918 case XPT_SCSI_IO: 2919 if (!ciss_cam_action_io(sim, csio)) 2920 return; 2921 break; 2922 2923 /* perform geometry calculations */ 2924 case XPT_CALC_GEOMETRY: 2925 { 2926 struct ccb_calc_geometry *ccg = &ccb->ccg; 2927 struct ciss_ldrive *ld; 2928 2929 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2930 2931 ld = NULL; 2932 if (!physical) 2933 ld = &sc->ciss_logical[bus][target]; 2934 2935 /* 2936 * Use the cached geometry settings unless the fault tolerance 2937 * is invalid. 2938 */ 2939 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2940 u_int32_t secs_per_cylinder; 2941 2942 ccg->heads = 255; 2943 ccg->secs_per_track = 32; 2944 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2945 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2946 } else { 2947 ccg->heads = ld->cl_geometry.heads; 2948 ccg->secs_per_track = ld->cl_geometry.sectors; 2949 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2950 } 2951 ccb->ccb_h.status = CAM_REQ_CMP; 2952 break; 2953 } 2954 2955 /* handle path attribute inquiry */ 2956 case XPT_PATH_INQ: 2957 { 2958 struct ccb_pathinq *cpi = &ccb->cpi; 2959 2960 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2961 2962 cpi->version_num = 1; 2963 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2964 cpi->target_sprt = 0; 2965 cpi->hba_misc = 0; 2966 cpi->max_target = CISS_MAX_LOGICAL; 2967 cpi->max_lun = 0; /* 'logical drive' channel only */ 2968 cpi->initiator_id = CISS_MAX_LOGICAL; 2969 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2970 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2971 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2972 cpi->unit_number = cam_sim_unit(sim); 2973 cpi->bus_id = cam_sim_bus(sim); 2974 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2975 cpi->transport = XPORT_SPI; 2976 cpi->transport_version = 2; 2977 cpi->protocol = PROTO_SCSI; 2978 cpi->protocol_version = SCSI_REV_2; 2979 ccb->ccb_h.status = CAM_REQ_CMP; 2980 break; 2981 } 2982 2983 case XPT_GET_TRAN_SETTINGS: 2984 { 2985 struct ccb_trans_settings *cts = &ccb->cts; 2986 int bus, target; 2987 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2988 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2989 2990 bus = cam_sim_bus(sim); 2991 target = cts->ccb_h.target_id; 2992 2993 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2994 /* disconnect always OK */ 2995 cts->protocol = PROTO_SCSI; 2996 cts->protocol_version = SCSI_REV_2; 2997 cts->transport = XPORT_SPI; 2998 cts->transport_version = 2; 2999 3000 spi->valid = CTS_SPI_VALID_DISC; 3001 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3002 3003 scsi->valid = CTS_SCSI_VALID_TQ; 3004 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3005 3006 cts->ccb_h.status = CAM_REQ_CMP; 3007 break; 3008 } 3009 3010 default: /* we can't do this */ 3011 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3012 ccb->ccb_h.status = CAM_REQ_INVALID; 3013 break; 3014 } 3015 3016 xpt_done(ccb); 3017} 3018 3019/************************************************************************ 3020 * Handle a CAM SCSI I/O request. 3021 */ 3022static int 3023ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3024{ 3025 struct ciss_softc *sc; 3026 int bus, target; 3027 struct ciss_request *cr; 3028 struct ciss_command *cc; 3029 int error; 3030 3031 sc = cam_sim_softc(sim); 3032 bus = cam_sim_bus(sim); 3033 target = csio->ccb_h.target_id; 3034 3035 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3036 3037 /* check that the CDB pointer is not to a physical address */ 3038 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3039 debug(3, " CDB pointer is to physical address"); 3040 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3041 } 3042 3043 /* if there is data transfer, it must be to/from a virtual address */ 3044 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3045 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3046 debug(3, " data pointer is to physical address"); 3047 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3048 } 3049 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3050 debug(3, " data has premature s/g setup"); 3051 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3052 } 3053 } 3054 3055 /* abandon aborted ccbs or those that have failed validation */ 3056 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3057 debug(3, "abandoning CCB due to abort/validation failure"); 3058 return(EINVAL); 3059 } 3060 3061 /* handle emulation of some SCSI commands ourself */ 3062 if (ciss_cam_emulate(sc, csio)) 3063 return(0); 3064 3065 /* 3066 * Get a request to manage this command. If we can't, return the 3067 * ccb, freeze the queue and flag so that we unfreeze it when a 3068 * request completes. 3069 */ 3070 if ((error = ciss_get_request(sc, &cr)) != 0) { 3071 xpt_freeze_simq(sim, 1); 3072 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3073 return(error); 3074 } 3075 3076 /* 3077 * Build the command. 3078 */ 3079 cc = CISS_FIND_COMMAND(cr); 3080 cr->cr_data = csio->data_ptr; 3081 cr->cr_length = csio->dxfer_len; 3082 cr->cr_complete = ciss_cam_complete; 3083 cr->cr_private = csio; 3084 3085 /* 3086 * Target the right logical volume. 3087 */ 3088 if (CISS_IS_PHYSICAL(bus)) 3089 cc->header.address = 3090 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3091 else 3092 cc->header.address = 3093 sc->ciss_logical[bus][target].cl_address; 3094 cc->cdb.cdb_length = csio->cdb_len; 3095 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3096 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3097 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3098 cr->cr_flags = CISS_REQ_DATAOUT; 3099 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3100 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3101 cr->cr_flags = CISS_REQ_DATAIN; 3102 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3103 } else { 3104 cr->cr_flags = 0; 3105 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3106 } 3107 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3108 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3109 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3110 } else { 3111 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3112 } 3113 3114 /* 3115 * Submit the request to the adapter. 3116 * 3117 * Note that this may fail if we're unable to map the request (and 3118 * if we ever learn a transport layer other than simple, may fail 3119 * if the adapter rejects the command). 3120 */ 3121 if ((error = ciss_start(cr)) != 0) { 3122 xpt_freeze_simq(sim, 1); 3123 if (error == EINPROGRESS) { 3124 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3125 error = 0; 3126 } else { 3127 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3128 ciss_release_request(cr); 3129 } 3130 return(error); 3131 } 3132 3133 return(0); 3134} 3135 3136/************************************************************************ 3137 * Emulate SCSI commands the adapter doesn't handle as we might like. 3138 */ 3139static int 3140ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3141{ 3142 int bus, target; 3143 u_int8_t opcode; 3144 3145 target = csio->ccb_h.target_id; 3146 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3147 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3148 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3149 3150 if (CISS_IS_PHYSICAL(bus)) { 3151 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3152 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3153 xpt_done((union ccb *)csio); 3154 return(1); 3155 } else 3156 return(0); 3157 } 3158 3159 /* 3160 * Handle requests for volumes that don't exist or are not online. 3161 * A selection timeout is slightly better than an illegal request. 3162 * Other errors might be better. 3163 */ 3164 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3165 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3166 xpt_done((union ccb *)csio); 3167 return(1); 3168 } 3169 3170 /* if we have to fake Synchronise Cache */ 3171 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3172 /* 3173 * If this is a Synchronise Cache command, typically issued when 3174 * a device is closed, flush the adapter and complete now. 3175 */ 3176 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3177 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3178 ciss_flush_adapter(sc); 3179 csio->ccb_h.status = CAM_REQ_CMP; 3180 xpt_done((union ccb *)csio); 3181 return(1); 3182 } 3183 } 3184 3185 return(0); 3186} 3187 3188/************************************************************************ 3189 * Check for possibly-completed commands. 3190 */ 3191static void 3192ciss_cam_poll(struct cam_sim *sim) 3193{ 3194 cr_qhead_t qh; 3195 struct ciss_softc *sc = cam_sim_softc(sim); 3196 3197 debug_called(2); 3198 3199 STAILQ_INIT(&qh); 3200 if (sc->ciss_perf) 3201 ciss_perf_done(sc, &qh); 3202 else 3203 ciss_done(sc, &qh); 3204 ciss_complete(sc, &qh); 3205} 3206 3207/************************************************************************ 3208 * Handle completion of a command - pass results back through the CCB 3209 */ 3210static void 3211ciss_cam_complete(struct ciss_request *cr) 3212{ 3213 struct ciss_softc *sc; 3214 struct ciss_command *cc; 3215 struct ciss_error_info *ce; 3216 struct ccb_scsiio *csio; 3217 int scsi_status; 3218 int command_status; 3219 3220 debug_called(2); 3221 3222 sc = cr->cr_sc; 3223 cc = CISS_FIND_COMMAND(cr); 3224 ce = (struct ciss_error_info *)&(cc->sg[0]); 3225 csio = (struct ccb_scsiio *)cr->cr_private; 3226 3227 /* 3228 * Extract status values from request. 3229 */ 3230 ciss_report_request(cr, &command_status, &scsi_status); 3231 csio->scsi_status = scsi_status; 3232 3233 /* 3234 * Handle specific SCSI status values. 3235 */ 3236 switch(scsi_status) { 3237 /* no status due to adapter error */ 3238 case -1: 3239 debug(0, "adapter error"); 3240 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3241 break; 3242 3243 /* no status due to command completed OK */ 3244 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3245 debug(2, "SCSI_STATUS_OK"); 3246 csio->ccb_h.status = CAM_REQ_CMP; 3247 break; 3248 3249 /* check condition, sense data included */ 3250 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3251 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3252 ce->sense_length, ce->residual_count); 3253 bzero(&csio->sense_data, SSD_FULL_SIZE); 3254 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3255 csio->sense_len = ce->sense_length; 3256 csio->resid = ce->residual_count; 3257 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3258#ifdef CISS_DEBUG 3259 { 3260 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3261 debug(0, "sense key %x", sns->flags & SSD_KEY); 3262 } 3263#endif 3264 break; 3265 3266 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3267 debug(0, "SCSI_STATUS_BUSY"); 3268 csio->ccb_h.status = CAM_SCSI_BUSY; 3269 break; 3270 3271 default: 3272 debug(0, "unknown status 0x%x", csio->scsi_status); 3273 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3274 break; 3275 } 3276 3277 /* handle post-command fixup */ 3278 ciss_cam_complete_fixup(sc, csio); 3279 3280 /* tell CAM we're ready for more commands */ 3281 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3282 3283 ciss_release_request(cr); 3284 xpt_done((union ccb *)csio); 3285} 3286 3287/******************************************************************************** 3288 * Fix up the result of some commands here. 3289 */ 3290static void 3291ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3292{ 3293 struct scsi_inquiry_data *inq; 3294 struct ciss_ldrive *cl; 3295 int bus, target; 3296 3297 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3298 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3299 3300 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3301 target = csio->ccb_h.target_id; 3302 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3303 3304 /* 3305 * Don't let hard drives be seen by the DA driver. They will still be 3306 * attached by the PASS driver. 3307 */ 3308 if (CISS_IS_PHYSICAL(bus)) { 3309 if (SID_TYPE(inq) == T_DIRECT) 3310 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3311 return; 3312 } 3313 3314 cl = &sc->ciss_logical[bus][target]; 3315 3316 padstr(inq->vendor, "COMPAQ", 8); 3317 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3318 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3319 } 3320} 3321 3322 3323/******************************************************************************** 3324 * Find a peripheral attached at (target) 3325 */ 3326static struct cam_periph * 3327ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3328{ 3329 struct cam_periph *periph; 3330 struct cam_path *path; 3331 int status; 3332 3333 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3334 target, 0); 3335 if (status == CAM_REQ_CMP) { 3336 periph = cam_periph_find(path, NULL); 3337 xpt_free_path(path); 3338 } else { 3339 periph = NULL; 3340 } 3341 return(periph); 3342} 3343 3344/******************************************************************************** 3345 * Name the device at (target) 3346 * 3347 * XXX is this strictly correct? 3348 */ 3349static int 3350ciss_name_device(struct ciss_softc *sc, int bus, int target) 3351{ 3352 struct cam_periph *periph; 3353 3354 if (CISS_IS_PHYSICAL(bus)) 3355 return (0); 3356 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3357 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3358 periph->periph_name, periph->unit_number); 3359 return(0); 3360 } 3361 sc->ciss_logical[bus][target].cl_name[0] = 0; 3362 return(ENOENT); 3363} 3364 3365/************************************************************************ 3366 * Periodic status monitoring. 3367 */ 3368static void 3369ciss_periodic(void *arg) 3370{ 3371 struct ciss_softc *sc; 3372 struct ciss_request *cr = NULL; 3373 struct ciss_command *cc = NULL; 3374 int error = 0; 3375 3376 debug_called(1); 3377 3378 sc = (struct ciss_softc *)arg; 3379 3380 /* 3381 * Check the adapter heartbeat. 3382 */ 3383 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3384 sc->ciss_heart_attack++; 3385 debug(0, "adapter heart attack in progress 0x%x/%d", 3386 sc->ciss_heartbeat, sc->ciss_heart_attack); 3387 if (sc->ciss_heart_attack == 3) { 3388 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3389 ciss_disable_adapter(sc); 3390 return; 3391 } 3392 } else { 3393 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3394 sc->ciss_heart_attack = 0; 3395 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3396 } 3397 3398 /* 3399 * Send the NOP message and wait for a response. 3400 */ 3401 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3402 cc = CISS_FIND_COMMAND(cr); 3403 cr->cr_complete = ciss_nop_complete; 3404 cc->cdb.cdb_length = 1; 3405 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3406 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3407 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3408 cc->cdb.timeout = 0; 3409 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3410 3411 if ((error = ciss_start(cr)) != 0) { 3412 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3413 } 3414 } 3415 3416 /* 3417 * If the notify event request has died for some reason, or has 3418 * not started yet, restart it. 3419 */ 3420 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3421 debug(0, "(re)starting Event Notify chain"); 3422 ciss_notify_event(sc); 3423 } 3424 3425 /* 3426 * Reschedule. 3427 */ 3428 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3429} 3430 3431static void 3432ciss_nop_complete(struct ciss_request *cr) 3433{ 3434 struct ciss_softc *sc; 3435 static int first_time = 1; 3436 3437 sc = cr->cr_sc; 3438 if (ciss_report_request(cr, NULL, NULL) != 0) { 3439 if (first_time == 1) { 3440 first_time = 0; 3441 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3442 } 3443 } 3444 3445 ciss_release_request(cr); 3446} 3447 3448/************************************************************************ 3449 * Disable the adapter. 3450 * 3451 * The all requests in completed queue is failed with hardware error. 3452 * This will cause failover in a multipath configuration. 3453 */ 3454static void 3455ciss_disable_adapter(struct ciss_softc *sc) 3456{ 3457 cr_qhead_t qh; 3458 struct ciss_request *cr; 3459 struct ciss_command *cc; 3460 struct ciss_error_info *ce; 3461 int i; 3462 3463 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3464 pci_disable_busmaster(sc->ciss_dev); 3465 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3466 3467 for (i = 1; i < sc->ciss_max_requests; i++) { 3468 cr = &sc->ciss_request[i]; 3469 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3470 continue; 3471 3472 cc = CISS_FIND_COMMAND(cr); 3473 ce = (struct ciss_error_info *)&(cc->sg[0]); 3474 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3475 ciss_enqueue_complete(cr, &qh); 3476 } 3477 3478 for (;;) { 3479 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3480 break; 3481 3482 /* 3483 * If the request has a callback, invoke it. 3484 */ 3485 if (cr->cr_complete != NULL) { 3486 cr->cr_complete(cr); 3487 continue; 3488 } 3489 3490 /* 3491 * If someone is sleeping on this request, wake them up. 3492 */ 3493 if (cr->cr_flags & CISS_REQ_SLEEP) { 3494 cr->cr_flags &= ~CISS_REQ_SLEEP; 3495 wakeup(cr); 3496 continue; 3497 } 3498 } 3499} 3500 3501/************************************************************************ 3502 * Request a notification response from the adapter. 3503 * 3504 * If (cr) is NULL, this is the first request of the adapter, so 3505 * reset the adapter's message pointer and start with the oldest 3506 * message available. 3507 */ 3508static void 3509ciss_notify_event(struct ciss_softc *sc) 3510{ 3511 struct ciss_request *cr; 3512 struct ciss_command *cc; 3513 struct ciss_notify_cdb *cnc; 3514 int error; 3515 3516 debug_called(1); 3517 3518 cr = sc->ciss_periodic_notify; 3519 3520 /* get a request if we don't already have one */ 3521 if (cr == NULL) { 3522 if ((error = ciss_get_request(sc, &cr)) != 0) { 3523 debug(0, "can't get notify event request"); 3524 goto out; 3525 } 3526 sc->ciss_periodic_notify = cr; 3527 cr->cr_complete = ciss_notify_complete; 3528 debug(1, "acquired request %d", cr->cr_tag); 3529 } 3530 3531 /* 3532 * Get a databuffer if we don't already have one, note that the 3533 * adapter command wants a larger buffer than the actual 3534 * structure. 3535 */ 3536 if (cr->cr_data == NULL) { 3537 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3538 debug(0, "can't get notify event request buffer"); 3539 error = ENOMEM; 3540 goto out; 3541 } 3542 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3543 } 3544 3545 /* re-setup the request's command (since we never release it) XXX overkill*/ 3546 ciss_preen_command(cr); 3547 3548 /* (re)build the notify event command */ 3549 cc = CISS_FIND_COMMAND(cr); 3550 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3551 cc->header.address.physical.bus = 0; 3552 cc->header.address.physical.target = 0; 3553 3554 cc->cdb.cdb_length = sizeof(*cnc); 3555 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3556 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3557 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3558 cc->cdb.timeout = 0; /* no timeout, we hope */ 3559 3560 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3561 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3562 cnc->opcode = CISS_OPCODE_READ; 3563 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3564 cnc->timeout = 0; /* no timeout, we hope */ 3565 cnc->synchronous = 0; 3566 cnc->ordered = 0; 3567 cnc->seek_to_oldest = 0; 3568 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3569 cnc->new_only = 1; 3570 else 3571 cnc->new_only = 0; 3572 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3573 3574 /* submit the request */ 3575 error = ciss_start(cr); 3576 3577 out: 3578 if (error) { 3579 if (cr != NULL) { 3580 if (cr->cr_data != NULL) 3581 free(cr->cr_data, CISS_MALLOC_CLASS); 3582 ciss_release_request(cr); 3583 } 3584 sc->ciss_periodic_notify = NULL; 3585 debug(0, "can't submit notify event request"); 3586 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3587 } else { 3588 debug(1, "notify event submitted"); 3589 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3590 } 3591} 3592 3593static void 3594ciss_notify_complete(struct ciss_request *cr) 3595{ 3596 struct ciss_command *cc; 3597 struct ciss_notify *cn; 3598 struct ciss_softc *sc; 3599 int scsi_status; 3600 int command_status; 3601 debug_called(1); 3602 3603 cc = CISS_FIND_COMMAND(cr); 3604 cn = (struct ciss_notify *)cr->cr_data; 3605 sc = cr->cr_sc; 3606 3607 /* 3608 * Report request results, decode status. 3609 */ 3610 ciss_report_request(cr, &command_status, &scsi_status); 3611 3612 /* 3613 * Abort the chain on a fatal error. 3614 * 3615 * XXX which of these are actually errors? 3616 */ 3617 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3618 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3619 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3620 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3621 ciss_name_command_status(command_status)); 3622 ciss_release_request(cr); 3623 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3624 return; 3625 } 3626 3627 /* 3628 * If the adapter gave us a text message, print it. 3629 */ 3630 if (cn->message[0] != 0) 3631 ciss_printf(sc, "*** %.80s\n", cn->message); 3632 3633 debug(0, "notify event class %d subclass %d detail %d", 3634 cn->class, cn->subclass, cn->detail); 3635 3636 /* 3637 * If the response indicates that the notifier has been aborted, 3638 * release the notifier command. 3639 */ 3640 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3641 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3642 (cn->detail == 1)) { 3643 debug(0, "notifier exiting"); 3644 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3645 ciss_release_request(cr); 3646 sc->ciss_periodic_notify = NULL; 3647 wakeup(&sc->ciss_periodic_notify); 3648 } else { 3649 /* Handle notify events in a kernel thread */ 3650 ciss_enqueue_notify(cr); 3651 sc->ciss_periodic_notify = NULL; 3652 wakeup(&sc->ciss_periodic_notify); 3653 wakeup(&sc->ciss_notify); 3654 } 3655 /* 3656 * Send a new notify event command, if we're not aborting. 3657 */ 3658 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3659 ciss_notify_event(sc); 3660 } 3661} 3662 3663/************************************************************************ 3664 * Abort the Notify Event chain. 3665 * 3666 * Note that we can't just abort the command in progress; we have to 3667 * explicitly issue an Abort Notify Event command in order for the 3668 * adapter to clean up correctly. 3669 * 3670 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3671 * the chain will not restart itself. 3672 */ 3673static int 3674ciss_notify_abort(struct ciss_softc *sc) 3675{ 3676 struct ciss_request *cr; 3677 struct ciss_command *cc; 3678 struct ciss_notify_cdb *cnc; 3679 int error, command_status, scsi_status; 3680 3681 debug_called(1); 3682 3683 cr = NULL; 3684 error = 0; 3685 3686 /* verify that there's an outstanding command */ 3687 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3688 goto out; 3689 3690 /* get a command to issue the abort with */ 3691 if ((error = ciss_get_request(sc, &cr))) 3692 goto out; 3693 3694 /* get a buffer for the result */ 3695 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3696 debug(0, "can't get notify event request buffer"); 3697 error = ENOMEM; 3698 goto out; 3699 } 3700 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3701 3702 /* build the CDB */ 3703 cc = CISS_FIND_COMMAND(cr); 3704 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3705 cc->header.address.physical.bus = 0; 3706 cc->header.address.physical.target = 0; 3707 cc->cdb.cdb_length = sizeof(*cnc); 3708 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3709 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3710 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3711 cc->cdb.timeout = 0; /* no timeout, we hope */ 3712 3713 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3714 bzero(cnc, sizeof(*cnc)); 3715 cnc->opcode = CISS_OPCODE_WRITE; 3716 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3717 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3718 3719 ciss_print_request(cr); 3720 3721 /* 3722 * Submit the request and wait for it to complete. 3723 */ 3724 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3725 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3726 goto out; 3727 } 3728 3729 /* 3730 * Check response. 3731 */ 3732 ciss_report_request(cr, &command_status, &scsi_status); 3733 switch(command_status) { 3734 case CISS_CMD_STATUS_SUCCESS: 3735 break; 3736 case CISS_CMD_STATUS_INVALID_COMMAND: 3737 /* 3738 * Some older adapters don't support the CISS version of this 3739 * command. Fall back to using the BMIC version. 3740 */ 3741 error = ciss_notify_abort_bmic(sc); 3742 if (error != 0) 3743 goto out; 3744 break; 3745 3746 case CISS_CMD_STATUS_TARGET_STATUS: 3747 /* 3748 * This can happen if the adapter thinks there wasn't an outstanding 3749 * Notify Event command but we did. We clean up here. 3750 */ 3751 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3752 if (sc->ciss_periodic_notify != NULL) 3753 ciss_release_request(sc->ciss_periodic_notify); 3754 error = 0; 3755 goto out; 3756 } 3757 /* FALLTHROUGH */ 3758 3759 default: 3760 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3761 ciss_name_command_status(command_status)); 3762 error = EIO; 3763 goto out; 3764 } 3765 3766 /* 3767 * Sleep waiting for the notifier command to complete. Note 3768 * that if it doesn't, we may end up in a bad situation, since 3769 * the adapter may deliver it later. Also note that the adapter 3770 * requires the Notify Event command to be cancelled in order to 3771 * maintain internal bookkeeping. 3772 */ 3773 while (sc->ciss_periodic_notify != NULL) { 3774 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3775 if (error == EWOULDBLOCK) { 3776 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3777 break; 3778 } 3779 } 3780 3781 out: 3782 /* release the cancel request */ 3783 if (cr != NULL) { 3784 if (cr->cr_data != NULL) 3785 free(cr->cr_data, CISS_MALLOC_CLASS); 3786 ciss_release_request(cr); 3787 } 3788 if (error == 0) 3789 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3790 return(error); 3791} 3792 3793/************************************************************************ 3794 * Abort the Notify Event chain using a BMIC command. 3795 */ 3796static int 3797ciss_notify_abort_bmic(struct ciss_softc *sc) 3798{ 3799 struct ciss_request *cr; 3800 int error, command_status; 3801 3802 debug_called(1); 3803 3804 cr = NULL; 3805 error = 0; 3806 3807 /* verify that there's an outstanding command */ 3808 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3809 goto out; 3810 3811 /* 3812 * Build a BMIC command to cancel the Notify on Event command. 3813 * 3814 * Note that we are sending a CISS opcode here. Odd. 3815 */ 3816 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3817 NULL, 0)) != 0) 3818 goto out; 3819 3820 /* 3821 * Submit the request and wait for it to complete. 3822 */ 3823 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3824 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3825 goto out; 3826 } 3827 3828 /* 3829 * Check response. 3830 */ 3831 ciss_report_request(cr, &command_status, NULL); 3832 switch(command_status) { 3833 case CISS_CMD_STATUS_SUCCESS: 3834 break; 3835 default: 3836 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3837 ciss_name_command_status(command_status)); 3838 error = EIO; 3839 goto out; 3840 } 3841 3842out: 3843 if (cr != NULL) 3844 ciss_release_request(cr); 3845 return(error); 3846} 3847 3848/************************************************************************ 3849 * Handle rescanning all the logical volumes when a notify event 3850 * causes the drives to come online or offline. 3851 */ 3852static void 3853ciss_notify_rescan_logical(struct ciss_softc *sc) 3854{ 3855 struct ciss_lun_report *cll; 3856 struct ciss_ldrive *ld; 3857 int i, j, ndrives; 3858 3859 /* 3860 * We must rescan all logical volumes to get the right logical 3861 * drive address. 3862 */ 3863 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3864 CISS_MAX_LOGICAL); 3865 if (cll == NULL) 3866 return; 3867 3868 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3869 3870 /* 3871 * Delete any of the drives which were destroyed by the 3872 * firmware. 3873 */ 3874 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3875 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3876 ld = &sc->ciss_logical[i][j]; 3877 3878 if (ld->cl_update == 0) 3879 continue; 3880 3881 if (ld->cl_status != CISS_LD_ONLINE) { 3882 ciss_cam_rescan_target(sc, i, j); 3883 ld->cl_update = 0; 3884 if (ld->cl_ldrive) 3885 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3886 if (ld->cl_lstatus) 3887 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3888 3889 ld->cl_ldrive = NULL; 3890 ld->cl_lstatus = NULL; 3891 } 3892 } 3893 } 3894 3895 /* 3896 * Scan for new drives. 3897 */ 3898 for (i = 0; i < ndrives; i++) { 3899 int bus, target; 3900 3901 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3902 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3903 ld = &sc->ciss_logical[bus][target]; 3904 3905 if (ld->cl_update == 0) 3906 continue; 3907 3908 ld->cl_update = 0; 3909 ld->cl_address = cll->lun[i]; 3910 ld->cl_controller = &sc->ciss_controllers[bus]; 3911 if (ciss_identify_logical(sc, ld) == 0) { 3912 ciss_cam_rescan_target(sc, bus, target); 3913 } 3914 } 3915 free(cll, CISS_MALLOC_CLASS); 3916} 3917 3918/************************************************************************ 3919 * Handle a notify event relating to the status of a logical drive. 3920 * 3921 * XXX need to be able to defer some of these to properly handle 3922 * calling the "ID Physical drive" command, unless the 'extended' 3923 * drive IDs are always in BIG_MAP format. 3924 */ 3925static void 3926ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3927{ 3928 struct ciss_ldrive *ld; 3929 int ostatus, bus, target; 3930 3931 debug_called(2); 3932 3933 bus = cn->device.physical.bus; 3934 target = cn->data.logical_status.logical_drive; 3935 ld = &sc->ciss_logical[bus][target]; 3936 3937 switch (cn->subclass) { 3938 case CISS_NOTIFY_LOGICAL_STATUS: 3939 switch (cn->detail) { 3940 case 0: 3941 ciss_name_device(sc, bus, target); 3942 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3943 cn->data.logical_status.logical_drive, ld->cl_name, 3944 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3945 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3946 cn->data.logical_status.spare_state, 3947 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3948 3949 /* 3950 * Update our idea of the drive's status. 3951 */ 3952 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3953 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3954 if (ld->cl_lstatus != NULL) 3955 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3956 3957 /* 3958 * Have CAM rescan the drive if its status has changed. 3959 */ 3960 if (ostatus != ld->cl_status) { 3961 ld->cl_update = 1; 3962 ciss_notify_rescan_logical(sc); 3963 } 3964 3965 break; 3966 3967 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3968 ciss_name_device(sc, bus, target); 3969 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3970 cn->data.logical_status.logical_drive, ld->cl_name); 3971 ciss_accept_media(sc, ld); 3972 3973 ld->cl_update = 1; 3974 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3975 ciss_notify_rescan_logical(sc); 3976 break; 3977 3978 case 2: 3979 case 3: 3980 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3981 cn->data.rebuild_aborted.logical_drive, 3982 ld->cl_name, 3983 (cn->detail == 2) ? "read" : "write"); 3984 break; 3985 } 3986 break; 3987 3988 case CISS_NOTIFY_LOGICAL_ERROR: 3989 if (cn->detail == 0) { 3990 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3991 cn->data.io_error.logical_drive, 3992 ld->cl_name, 3993 cn->data.io_error.failure_bus, 3994 cn->data.io_error.failure_drive); 3995 /* XXX should we take the drive down at this point, or will we be told? */ 3996 } 3997 break; 3998 3999 case CISS_NOTIFY_LOGICAL_SURFACE: 4000 if (cn->detail == 0) 4001 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4002 cn->data.consistency_completed.logical_drive, 4003 ld->cl_name); 4004 break; 4005 } 4006} 4007 4008/************************************************************************ 4009 * Handle a notify event relating to the status of a physical drive. 4010 */ 4011static void 4012ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4013{ 4014} 4015 4016/************************************************************************ 4017 * Handle a notify event relating to the status of a physical drive. 4018 */ 4019static void 4020ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4021{ 4022 struct ciss_lun_report *cll = NULL; 4023 int bus, target; 4024 4025 switch (cn->subclass) { 4026 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4027 case CISS_NOTIFY_HOTPLUG_NONDISK: 4028 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4029 target = 4030 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4031 4032 if (cn->detail == 0) { 4033 /* 4034 * Mark the device offline so that it'll start producing selection 4035 * timeouts to the upper layer. 4036 */ 4037 if ((bus >= 0) && (target >= 0)) 4038 sc->ciss_physical[bus][target].cp_online = 0; 4039 } else { 4040 /* 4041 * Rescan the physical lun list for new items 4042 */ 4043 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4044 CISS_MAX_PHYSICAL); 4045 if (cll == NULL) { 4046 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4047 break; 4048 } 4049 ciss_filter_physical(sc, cll); 4050 } 4051 break; 4052 4053 default: 4054 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4055 return; 4056 } 4057 4058 if (cll != NULL) 4059 free(cll, CISS_MALLOC_CLASS); 4060} 4061 4062/************************************************************************ 4063 * Handle deferred processing of notify events. Notify events may need 4064 * sleep which is unsafe during an interrupt. 4065 */ 4066static void 4067ciss_notify_thread(void *arg) 4068{ 4069 struct ciss_softc *sc; 4070 struct ciss_request *cr; 4071 struct ciss_notify *cn; 4072 4073 sc = (struct ciss_softc *)arg; 4074#if __FreeBSD_version >= 500000 4075 mtx_lock(&sc->ciss_mtx); 4076#endif 4077 4078 for (;;) { 4079 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4080 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4081 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4082 } 4083 4084 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4085 break; 4086 4087 cr = ciss_dequeue_notify(sc); 4088 4089 if (cr == NULL) 4090 panic("cr null"); 4091 cn = (struct ciss_notify *)cr->cr_data; 4092 4093 switch (cn->class) { 4094 case CISS_NOTIFY_HOTPLUG: 4095 ciss_notify_hotplug(sc, cn); 4096 break; 4097 case CISS_NOTIFY_LOGICAL: 4098 ciss_notify_logical(sc, cn); 4099 break; 4100 case CISS_NOTIFY_PHYSICAL: 4101 ciss_notify_physical(sc, cn); 4102 break; 4103 } 4104 4105 ciss_release_request(cr); 4106 4107 } 4108 sc->ciss_notify_thread = NULL; 4109 wakeup(&sc->ciss_notify_thread); 4110 4111#if __FreeBSD_version >= 500000 4112 mtx_unlock(&sc->ciss_mtx); 4113#endif 4114 kproc_exit(0); 4115} 4116 4117/************************************************************************ 4118 * Start the notification kernel thread. 4119 */ 4120static void 4121ciss_spawn_notify_thread(struct ciss_softc *sc) 4122{ 4123 4124#if __FreeBSD_version > 500005 4125 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4126 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4127 device_get_unit(sc->ciss_dev))) 4128#else 4129 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4130 &sc->ciss_notify_thread, "ciss_notify%d", 4131 device_get_unit(sc->ciss_dev))) 4132#endif 4133 panic("Could not create notify thread\n"); 4134} 4135 4136/************************************************************************ 4137 * Kill the notification kernel thread. 4138 */ 4139static void 4140ciss_kill_notify_thread(struct ciss_softc *sc) 4141{ 4142 4143 if (sc->ciss_notify_thread == NULL) 4144 return; 4145 4146 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4147 wakeup(&sc->ciss_notify); 4148 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4149} 4150 4151/************************************************************************ 4152 * Print a request. 4153 */ 4154static void 4155ciss_print_request(struct ciss_request *cr) 4156{ 4157 struct ciss_softc *sc; 4158 struct ciss_command *cc; 4159 int i; 4160 4161 sc = cr->cr_sc; 4162 cc = CISS_FIND_COMMAND(cr); 4163 4164 ciss_printf(sc, "REQUEST @ %p\n", cr); 4165 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4166 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4167 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4168 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4169 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4170 switch(cc->header.address.mode.mode) { 4171 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4172 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4173 ciss_printf(sc, " physical bus %d target %d\n", 4174 cc->header.address.physical.bus, cc->header.address.physical.target); 4175 break; 4176 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4177 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4178 break; 4179 } 4180 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4181 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4182 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4183 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4184 cc->cdb.cdb_length, 4185 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4186 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4187 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4188 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4189 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4190 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4191 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4192 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4193 4194 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4195 /* XXX print error info */ 4196 } else { 4197 /* since we don't use chained s/g, don't support it here */ 4198 for (i = 0; i < cc->header.sg_in_list; i++) { 4199 if ((i % 4) == 0) 4200 ciss_printf(sc, " "); 4201 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4202 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4203 printf("\n"); 4204 } 4205 } 4206} 4207 4208/************************************************************************ 4209 * Print information about the status of a logical drive. 4210 */ 4211static void 4212ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4213{ 4214 int bus, target, i; 4215 4216 if (ld->cl_lstatus == NULL) { 4217 printf("does not exist\n"); 4218 return; 4219 } 4220 4221 /* print drive status */ 4222 switch(ld->cl_lstatus->status) { 4223 case CISS_LSTATUS_OK: 4224 printf("online\n"); 4225 break; 4226 case CISS_LSTATUS_INTERIM_RECOVERY: 4227 printf("in interim recovery mode\n"); 4228 break; 4229 case CISS_LSTATUS_READY_RECOVERY: 4230 printf("ready to begin recovery\n"); 4231 break; 4232 case CISS_LSTATUS_RECOVERING: 4233 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4234 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4235 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4236 bus, target, ld->cl_lstatus->blocks_to_recover); 4237 break; 4238 case CISS_LSTATUS_EXPANDING: 4239 printf("being expanded, %u blocks remaining\n", 4240 ld->cl_lstatus->blocks_to_recover); 4241 break; 4242 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4243 printf("queued for expansion\n"); 4244 break; 4245 case CISS_LSTATUS_FAILED: 4246 printf("queued for expansion\n"); 4247 break; 4248 case CISS_LSTATUS_WRONG_PDRIVE: 4249 printf("wrong physical drive inserted\n"); 4250 break; 4251 case CISS_LSTATUS_MISSING_PDRIVE: 4252 printf("missing a needed physical drive\n"); 4253 break; 4254 case CISS_LSTATUS_BECOMING_READY: 4255 printf("becoming ready\n"); 4256 break; 4257 } 4258 4259 /* print failed physical drives */ 4260 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4261 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4262 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4263 if (bus == -1) 4264 continue; 4265 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4266 ld->cl_lstatus->drive_failure_map[i]); 4267 } 4268} 4269 4270#ifdef CISS_DEBUG 4271/************************************************************************ 4272 * Print information about the controller/driver. 4273 */ 4274static void 4275ciss_print_adapter(struct ciss_softc *sc) 4276{ 4277 int i, j; 4278 4279 ciss_printf(sc, "ADAPTER:\n"); 4280 for (i = 0; i < CISSQ_COUNT; i++) { 4281 ciss_printf(sc, "%s %d/%d\n", 4282 i == 0 ? "free" : 4283 i == 1 ? "busy" : "complete", 4284 sc->ciss_qstat[i].q_length, 4285 sc->ciss_qstat[i].q_max); 4286 } 4287 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4288 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4289 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4290 4291 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4292 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4293 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4294 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4295 } 4296 } 4297 4298 /* XXX Should physical drives be printed out here? */ 4299 4300 for (i = 1; i < sc->ciss_max_requests; i++) 4301 ciss_print_request(sc->ciss_request + i); 4302} 4303 4304/* DDB hook */ 4305static void 4306ciss_print0(void) 4307{ 4308 struct ciss_softc *sc; 4309 4310 sc = devclass_get_softc(devclass_find("ciss"), 0); 4311 if (sc == NULL) { 4312 printf("no ciss controllers\n"); 4313 } else { 4314 ciss_print_adapter(sc); 4315 } 4316} 4317#endif 4318 4319/************************************************************************ 4320 * Return a name for a logical drive status value. 4321 */ 4322static const char * 4323ciss_name_ldrive_status(int status) 4324{ 4325 switch (status) { 4326 case CISS_LSTATUS_OK: 4327 return("OK"); 4328 case CISS_LSTATUS_FAILED: 4329 return("failed"); 4330 case CISS_LSTATUS_NOT_CONFIGURED: 4331 return("not configured"); 4332 case CISS_LSTATUS_INTERIM_RECOVERY: 4333 return("interim recovery"); 4334 case CISS_LSTATUS_READY_RECOVERY: 4335 return("ready for recovery"); 4336 case CISS_LSTATUS_RECOVERING: 4337 return("recovering"); 4338 case CISS_LSTATUS_WRONG_PDRIVE: 4339 return("wrong physical drive inserted"); 4340 case CISS_LSTATUS_MISSING_PDRIVE: 4341 return("missing physical drive"); 4342 case CISS_LSTATUS_EXPANDING: 4343 return("expanding"); 4344 case CISS_LSTATUS_BECOMING_READY: 4345 return("becoming ready"); 4346 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4347 return("queued for expansion"); 4348 } 4349 return("unknown status"); 4350} 4351 4352/************************************************************************ 4353 * Return an online/offline/nonexistent value for a logical drive 4354 * status value. 4355 */ 4356static int 4357ciss_decode_ldrive_status(int status) 4358{ 4359 switch(status) { 4360 case CISS_LSTATUS_NOT_CONFIGURED: 4361 return(CISS_LD_NONEXISTENT); 4362 4363 case CISS_LSTATUS_OK: 4364 case CISS_LSTATUS_INTERIM_RECOVERY: 4365 case CISS_LSTATUS_READY_RECOVERY: 4366 case CISS_LSTATUS_RECOVERING: 4367 case CISS_LSTATUS_EXPANDING: 4368 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4369 return(CISS_LD_ONLINE); 4370 4371 case CISS_LSTATUS_FAILED: 4372 case CISS_LSTATUS_WRONG_PDRIVE: 4373 case CISS_LSTATUS_MISSING_PDRIVE: 4374 case CISS_LSTATUS_BECOMING_READY: 4375 default: 4376 return(CISS_LD_OFFLINE); 4377 } 4378} 4379 4380 4381/************************************************************************ 4382 * Return a name for a logical drive's organisation. 4383 */ 4384static const char * 4385ciss_name_ldrive_org(int org) 4386{ 4387 switch(org) { 4388 case CISS_LDRIVE_RAID0: 4389 return("RAID 0"); 4390 case CISS_LDRIVE_RAID1: 4391 return("RAID 1"); 4392 case CISS_LDRIVE_RAID4: 4393 return("RAID 4"); 4394 case CISS_LDRIVE_RAID5: 4395 return("RAID 5"); 4396 case CISS_LDRIVE_RAID51: 4397 return("RAID 5+1"); 4398 case CISS_LDRIVE_RAIDADG: 4399 return("RAID ADG"); 4400 } 4401 return("unkown"); 4402} 4403 4404/************************************************************************ 4405 * Return a name for a command status value. 4406 */ 4407static const char * 4408ciss_name_command_status(int status) 4409{ 4410 switch(status) { 4411 case CISS_CMD_STATUS_SUCCESS: 4412 return("success"); 4413 case CISS_CMD_STATUS_TARGET_STATUS: 4414 return("target status"); 4415 case CISS_CMD_STATUS_DATA_UNDERRUN: 4416 return("data underrun"); 4417 case CISS_CMD_STATUS_DATA_OVERRUN: 4418 return("data overrun"); 4419 case CISS_CMD_STATUS_INVALID_COMMAND: 4420 return("invalid command"); 4421 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4422 return("protocol error"); 4423 case CISS_CMD_STATUS_HARDWARE_ERROR: 4424 return("hardware error"); 4425 case CISS_CMD_STATUS_CONNECTION_LOST: 4426 return("connection lost"); 4427 case CISS_CMD_STATUS_ABORTED: 4428 return("aborted"); 4429 case CISS_CMD_STATUS_ABORT_FAILED: 4430 return("abort failed"); 4431 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4432 return("unsolicited abort"); 4433 case CISS_CMD_STATUS_TIMEOUT: 4434 return("timeout"); 4435 case CISS_CMD_STATUS_UNABORTABLE: 4436 return("unabortable"); 4437 } 4438 return("unknown status"); 4439} 4440 4441/************************************************************************ 4442 * Handle an open on the control device. 4443 */ 4444static int 4445ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4446{ 4447 struct ciss_softc *sc; 4448 4449 debug_called(1); 4450 4451 sc = (struct ciss_softc *)dev->si_drv1; 4452 4453 /* we might want to veto if someone already has us open */ 4454 4455 mtx_lock(&sc->ciss_mtx); 4456 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4457 mtx_unlock(&sc->ciss_mtx); 4458 return(0); 4459} 4460 4461/************************************************************************ 4462 * Handle the last close on the control device. 4463 */ 4464static int 4465ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4466{ 4467 struct ciss_softc *sc; 4468 4469 debug_called(1); 4470 4471 sc = (struct ciss_softc *)dev->si_drv1; 4472 4473 mtx_lock(&sc->ciss_mtx); 4474 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4475 mtx_unlock(&sc->ciss_mtx); 4476 return (0); 4477} 4478 4479/******************************************************************************** 4480 * Handle adapter-specific control operations. 4481 * 4482 * Note that the API here is compatible with the Linux driver, in order to 4483 * simplify the porting of Compaq's userland tools. 4484 */ 4485static int 4486ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4487{ 4488 struct ciss_softc *sc; 4489 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4490#ifdef __amd64__ 4491 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4492 IOCTL_Command_struct ioc_swab; 4493#endif 4494 int error; 4495 4496 debug_called(1); 4497 4498 sc = (struct ciss_softc *)dev->si_drv1; 4499 error = 0; 4500 mtx_lock(&sc->ciss_mtx); 4501 4502 switch(cmd) { 4503 case CCISS_GETQSTATS: 4504 { 4505 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4506 4507 switch (cr->cs_item) { 4508 case CISSQ_FREE: 4509 case CISSQ_NOTIFY: 4510 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4511 sizeof(struct ciss_qstat)); 4512 break; 4513 default: 4514 error = ENOIOCTL; 4515 break; 4516 } 4517 4518 break; 4519 } 4520 4521 case CCISS_GETPCIINFO: 4522 { 4523 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4524 4525 pis->bus = pci_get_bus(sc->ciss_dev); 4526 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4527 pis->board_id = pci_get_devid(sc->ciss_dev); 4528 4529 break; 4530 } 4531 4532 case CCISS_GETINTINFO: 4533 { 4534 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4535 4536 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4537 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4538 4539 break; 4540 } 4541 4542 case CCISS_SETINTINFO: 4543 { 4544 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4545 4546 if ((cis->delay == 0) && (cis->count == 0)) { 4547 error = EINVAL; 4548 break; 4549 } 4550 4551 /* 4552 * XXX apparently this is only safe if the controller is idle, 4553 * we should suspend it before doing this. 4554 */ 4555 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4556 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4557 4558 if (ciss_update_config(sc)) 4559 error = EIO; 4560 4561 /* XXX resume the controller here */ 4562 break; 4563 } 4564 4565 case CCISS_GETNODENAME: 4566 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4567 sizeof(NodeName_type)); 4568 break; 4569 4570 case CCISS_SETNODENAME: 4571 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4572 sizeof(NodeName_type)); 4573 if (ciss_update_config(sc)) 4574 error = EIO; 4575 break; 4576 4577 case CCISS_GETHEARTBEAT: 4578 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4579 break; 4580 4581 case CCISS_GETBUSTYPES: 4582 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4583 break; 4584 4585 case CCISS_GETFIRMVER: 4586 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4587 sizeof(FirmwareVer_type)); 4588 break; 4589 4590 case CCISS_GETDRIVERVER: 4591 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4592 break; 4593 4594 case CCISS_REVALIDVOLS: 4595 /* 4596 * This is a bit ugly; to do it "right" we really need 4597 * to find any disks that have changed, kick CAM off them, 4598 * then rescan only these disks. It'd be nice if they 4599 * a) told us which disk(s) they were going to play with, 4600 * and b) which ones had arrived. 8( 4601 */ 4602 break; 4603 4604#ifdef __amd64__ 4605 case CCISS_PASSTHRU32: 4606 ioc_swab.LUN_info = ioc32->LUN_info; 4607 ioc_swab.Request = ioc32->Request; 4608 ioc_swab.error_info = ioc32->error_info; 4609 ioc_swab.buf_size = ioc32->buf_size; 4610 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4611 ioc = &ioc_swab; 4612 /* FALLTHROUGH */ 4613#endif 4614 4615 case CCISS_PASSTHRU: 4616 error = ciss_user_command(sc, ioc); 4617 break; 4618 4619 default: 4620 debug(0, "unknown ioctl 0x%lx", cmd); 4621 4622 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4623 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4624 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4625 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4626 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4627 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4628 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4629 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4630 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4631 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4632 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4633 4634 error = ENOIOCTL; 4635 break; 4636 } 4637 4638 mtx_unlock(&sc->ciss_mtx); 4639 return(error); 4640} 4641