ciss.c revision 256281
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: stable/10/sys/dev/ciss/ciss.c 253980 2013-08-06 03:17:01Z sbruno $ 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 108static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 109 "ciss internal data buffers"); 110 111/* pci interface */ 112static int ciss_lookup(device_t dev); 113static int ciss_probe(device_t dev); 114static int ciss_attach(device_t dev); 115static int ciss_detach(device_t dev); 116static int ciss_shutdown(device_t dev); 117 118/* (de)initialisation functions, control wrappers */ 119static int ciss_init_pci(struct ciss_softc *sc); 120static int ciss_setup_msix(struct ciss_softc *sc); 121static int ciss_init_perf(struct ciss_softc *sc); 122static int ciss_wait_adapter(struct ciss_softc *sc); 123static int ciss_flush_adapter(struct ciss_softc *sc); 124static int ciss_init_requests(struct ciss_softc *sc); 125static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 126 int nseg, int error); 127static int ciss_identify_adapter(struct ciss_softc *sc); 128static int ciss_init_logical(struct ciss_softc *sc); 129static int ciss_init_physical(struct ciss_softc *sc); 130static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 131static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 132static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 133static int ciss_update_config(struct ciss_softc *sc); 134static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 135static void ciss_init_sysctl(struct ciss_softc *sc); 136static void ciss_soft_reset(struct ciss_softc *sc); 137static void ciss_free(struct ciss_softc *sc); 138static void ciss_spawn_notify_thread(struct ciss_softc *sc); 139static void ciss_kill_notify_thread(struct ciss_softc *sc); 140 141/* request submission/completion */ 142static int ciss_start(struct ciss_request *cr); 143static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 144static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 145static void ciss_intr(void *arg); 146static void ciss_perf_intr(void *arg); 147static void ciss_perf_msi_intr(void *arg); 148static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 149static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 150static int ciss_synch_request(struct ciss_request *cr, int timeout); 151static int ciss_poll_request(struct ciss_request *cr, int timeout); 152static int ciss_wait_request(struct ciss_request *cr, int timeout); 153#if 0 154static int ciss_abort_request(struct ciss_request *cr); 155#endif 156 157/* request queueing */ 158static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 159static void ciss_preen_command(struct ciss_request *cr); 160static void ciss_release_request(struct ciss_request *cr); 161 162/* request helpers */ 163static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 164 int opcode, void **bufp, size_t bufsize); 165static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 166 167/* DMA map/unmap */ 168static int ciss_map_request(struct ciss_request *cr); 169static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 170 int nseg, int error); 171static void ciss_unmap_request(struct ciss_request *cr); 172 173/* CAM interface */ 174static int ciss_cam_init(struct ciss_softc *sc); 175static void ciss_cam_rescan_target(struct ciss_softc *sc, 176 int bus, int target); 177static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 178static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 179static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 180static void ciss_cam_poll(struct cam_sim *sim); 181static void ciss_cam_complete(struct ciss_request *cr); 182static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 183static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 184 int bus, int target); 185static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 186 187/* periodic status monitoring */ 188static void ciss_periodic(void *arg); 189static void ciss_nop_complete(struct ciss_request *cr); 190static void ciss_disable_adapter(struct ciss_softc *sc); 191static void ciss_notify_event(struct ciss_softc *sc); 192static void ciss_notify_complete(struct ciss_request *cr); 193static int ciss_notify_abort(struct ciss_softc *sc); 194static int ciss_notify_abort_bmic(struct ciss_softc *sc); 195static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 196static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 197static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 198 199/* debugging output */ 200static void ciss_print_request(struct ciss_request *cr); 201static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 202static const char *ciss_name_ldrive_status(int status); 203static int ciss_decode_ldrive_status(int status); 204static const char *ciss_name_ldrive_org(int org); 205static const char *ciss_name_command_status(int status); 206 207/* 208 * PCI bus interface. 209 */ 210static device_method_t ciss_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, ciss_probe), 213 DEVMETHOD(device_attach, ciss_attach), 214 DEVMETHOD(device_detach, ciss_detach), 215 DEVMETHOD(device_shutdown, ciss_shutdown), 216 { 0, 0 } 217}; 218 219static driver_t ciss_pci_driver = { 220 "ciss", 221 ciss_methods, 222 sizeof(struct ciss_softc) 223}; 224 225static devclass_t ciss_devclass; 226DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 227MODULE_DEPEND(ciss, cam, 1, 1, 1); 228MODULE_DEPEND(ciss, pci, 1, 1, 1); 229 230/* 231 * Control device interface. 232 */ 233static d_open_t ciss_open; 234static d_close_t ciss_close; 235static d_ioctl_t ciss_ioctl; 236 237static struct cdevsw ciss_cdevsw = { 238 .d_version = D_VERSION, 239 .d_flags = 0, 240 .d_open = ciss_open, 241 .d_close = ciss_close, 242 .d_ioctl = ciss_ioctl, 243 .d_name = "ciss", 244}; 245 246/* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250static unsigned int ciss_expose_hidden_physical = 0; 251TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253static unsigned int ciss_nop_message_heartbeat = 0; 254TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256/* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262static int ciss_force_transport = 0; 263TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265/* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271static int ciss_force_interrupt = 0; 272TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274/************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281#define CISS_BOARD_UNKNWON 0 282#define CISS_BOARD_SA5 1 283#define CISS_BOARD_SA5B 2 284#define CISS_BOARD_NOMSI (1<<4) 285#define CISS_BOARD_SIMPLE (1<<5) 286 287static struct 288{ 289 u_int16_t subvendor; 290 u_int16_t subdevice; 291 int flags; 292 char *desc; 293} ciss_vendor_data[] = { 294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 295 "Compaq Smart Array 5300" }, 296 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 297 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 298 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 299 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 300 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 301 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 302 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 303 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 304 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 306 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 309 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 312 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 313 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 318 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 319 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 321 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 326 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 327 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 328 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 329 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 330 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 331 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 332 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 333 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 334 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 335 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 336 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 337 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 338 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 339 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 340 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 341 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 342 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 343 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 344 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 345 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 346 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 347 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 348 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 349 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 350 { 0, 0, 0, NULL } 351}; 352 353/************************************************************************ 354 * Find a match for the device in our list of known adapters. 355 */ 356static int 357ciss_lookup(device_t dev) 358{ 359 int i; 360 361 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 362 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 363 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 364 return(i); 365 } 366 return(-1); 367} 368 369/************************************************************************ 370 * Match a known CISS adapter. 371 */ 372static int 373ciss_probe(device_t dev) 374{ 375 int i; 376 377 i = ciss_lookup(dev); 378 if (i != -1) { 379 device_set_desc(dev, ciss_vendor_data[i].desc); 380 return(BUS_PROBE_DEFAULT); 381 } 382 return(ENOENT); 383} 384 385/************************************************************************ 386 * Attach the driver to this adapter. 387 */ 388static int 389ciss_attach(device_t dev) 390{ 391 struct ciss_softc *sc; 392 int error; 393 394 debug_called(1); 395 396#ifdef CISS_DEBUG 397 /* print structure/union sizes */ 398 debug_struct(ciss_command); 399 debug_struct(ciss_header); 400 debug_union(ciss_device_address); 401 debug_struct(ciss_cdb); 402 debug_struct(ciss_report_cdb); 403 debug_struct(ciss_notify_cdb); 404 debug_struct(ciss_notify); 405 debug_struct(ciss_message_cdb); 406 debug_struct(ciss_error_info_pointer); 407 debug_struct(ciss_error_info); 408 debug_struct(ciss_sg_entry); 409 debug_struct(ciss_config_table); 410 debug_struct(ciss_bmic_cdb); 411 debug_struct(ciss_bmic_id_ldrive); 412 debug_struct(ciss_bmic_id_lstatus); 413 debug_struct(ciss_bmic_id_table); 414 debug_struct(ciss_bmic_id_pdrive); 415 debug_struct(ciss_bmic_blink_pdrive); 416 debug_struct(ciss_bmic_flush_cache); 417 debug_const(CISS_MAX_REQUESTS); 418 debug_const(CISS_MAX_LOGICAL); 419 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 420 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 421 debug_const(CISS_COMMAND_ALLOC_SIZE); 422 debug_const(CISS_COMMAND_SG_LENGTH); 423 424 debug_type(cciss_pci_info_struct); 425 debug_type(cciss_coalint_struct); 426 debug_type(cciss_coalint_struct); 427 debug_type(NodeName_type); 428 debug_type(NodeName_type); 429 debug_type(Heartbeat_type); 430 debug_type(BusTypes_type); 431 debug_type(FirmwareVer_type); 432 debug_type(DriverVer_type); 433 debug_type(IOCTL_Command_struct); 434#endif 435 436 sc = device_get_softc(dev); 437 sc->ciss_dev = dev; 438 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 439 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 440 441 /* 442 * Do PCI-specific init. 443 */ 444 if ((error = ciss_init_pci(sc)) != 0) 445 goto out; 446 447 /* 448 * Initialise driver queues. 449 */ 450 ciss_initq_free(sc); 451 ciss_initq_notify(sc); 452 453 /* 454 * Initalize device sysctls. 455 */ 456 ciss_init_sysctl(sc); 457 458 /* 459 * Initialise command/request pool. 460 */ 461 if ((error = ciss_init_requests(sc)) != 0) 462 goto out; 463 464 /* 465 * Get adapter information. 466 */ 467 if ((error = ciss_identify_adapter(sc)) != 0) 468 goto out; 469 470 /* 471 * Find all the physical devices. 472 */ 473 if ((error = ciss_init_physical(sc)) != 0) 474 goto out; 475 476 /* 477 * Build our private table of logical devices. 478 */ 479 if ((error = ciss_init_logical(sc)) != 0) 480 goto out; 481 482 /* 483 * Enable interrupts so that the CAM scan can complete. 484 */ 485 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 486 487 /* 488 * Initialise the CAM interface. 489 */ 490 if ((error = ciss_cam_init(sc)) != 0) 491 goto out; 492 493 /* 494 * Start the heartbeat routine and event chain. 495 */ 496 ciss_periodic(sc); 497 498 /* 499 * Create the control device. 500 */ 501 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 502 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 503 "ciss%d", device_get_unit(sc->ciss_dev)); 504 sc->ciss_dev_t->si_drv1 = sc; 505 506 /* 507 * The adapter is running; synchronous commands can now sleep 508 * waiting for an interrupt to signal completion. 509 */ 510 sc->ciss_flags |= CISS_FLAG_RUNNING; 511 512 ciss_spawn_notify_thread(sc); 513 514 error = 0; 515 out: 516 if (error != 0) { 517 /* ciss_free() expects the mutex to be held */ 518 mtx_lock(&sc->ciss_mtx); 519 ciss_free(sc); 520 } 521 return(error); 522} 523 524/************************************************************************ 525 * Detach the driver from this adapter. 526 */ 527static int 528ciss_detach(device_t dev) 529{ 530 struct ciss_softc *sc = device_get_softc(dev); 531 532 debug_called(1); 533 534 mtx_lock(&sc->ciss_mtx); 535 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 536 mtx_unlock(&sc->ciss_mtx); 537 return (EBUSY); 538 } 539 540 /* flush adapter cache */ 541 ciss_flush_adapter(sc); 542 543 /* release all resources. The mutex is released and freed here too. */ 544 ciss_free(sc); 545 546 return(0); 547} 548 549/************************************************************************ 550 * Prepare adapter for system shutdown. 551 */ 552static int 553ciss_shutdown(device_t dev) 554{ 555 struct ciss_softc *sc = device_get_softc(dev); 556 557 debug_called(1); 558 559 mtx_lock(&sc->ciss_mtx); 560 /* flush adapter cache */ 561 ciss_flush_adapter(sc); 562 563 if (sc->ciss_soft_reset) 564 ciss_soft_reset(sc); 565 mtx_unlock(&sc->ciss_mtx); 566 567 return(0); 568} 569 570static void 571ciss_init_sysctl(struct ciss_softc *sc) 572{ 573 574 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 575 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 576 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 577} 578 579/************************************************************************ 580 * Perform PCI-specific attachment actions. 581 */ 582static int 583ciss_init_pci(struct ciss_softc *sc) 584{ 585 uintptr_t cbase, csize, cofs; 586 uint32_t method, supported_methods; 587 int error, sqmask, i; 588 void *intr; 589 590 debug_called(1); 591 592 /* 593 * Work out adapter type. 594 */ 595 i = ciss_lookup(sc->ciss_dev); 596 if (i < 0) { 597 ciss_printf(sc, "unknown adapter type\n"); 598 return (ENXIO); 599 } 600 601 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 602 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 603 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 604 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 605 } else { 606 /* 607 * XXX Big hammer, masks/unmasks all possible interrupts. This should 608 * work on all hardware variants. Need to add code to handle the 609 * "controller crashed" interupt bit that this unmasks. 610 */ 611 sqmask = ~0; 612 } 613 614 /* 615 * Allocate register window first (we need this to find the config 616 * struct). 617 */ 618 error = ENXIO; 619 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 620 if ((sc->ciss_regs_resource = 621 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 622 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 623 ciss_printf(sc, "can't allocate register window\n"); 624 return(ENXIO); 625 } 626 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 627 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 628 629 /* 630 * Find the BAR holding the config structure. If it's not the one 631 * we already mapped for registers, map it too. 632 */ 633 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 634 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 635 if ((sc->ciss_cfg_resource = 636 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 637 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 638 ciss_printf(sc, "can't allocate config window\n"); 639 return(ENXIO); 640 } 641 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 642 csize = rman_get_end(sc->ciss_cfg_resource) - 643 rman_get_start(sc->ciss_cfg_resource) + 1; 644 } else { 645 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 646 csize = rman_get_end(sc->ciss_regs_resource) - 647 rman_get_start(sc->ciss_regs_resource) + 1; 648 } 649 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 650 651 /* 652 * Use the base/size/offset values we just calculated to 653 * sanity-check the config structure. If it's OK, point to it. 654 */ 655 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 656 ciss_printf(sc, "config table outside window\n"); 657 return(ENXIO); 658 } 659 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 660 debug(1, "config struct at %p", sc->ciss_cfg); 661 662 /* 663 * Calculate the number of request structures/commands we are 664 * going to provide for this adapter. 665 */ 666 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 667 668 /* 669 * Validate the config structure. If we supported other transport 670 * methods, we could select amongst them at this point in time. 671 */ 672 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 673 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 674 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 675 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 676 return(ENXIO); 677 } 678 679 /* 680 * Select the mode of operation, prefer Performant. 681 */ 682 if (!(sc->ciss_cfg->supported_methods & 683 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 684 ciss_printf(sc, "No supported transport layers: 0x%x\n", 685 sc->ciss_cfg->supported_methods); 686 } 687 688 switch (ciss_force_transport) { 689 case 1: 690 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 691 break; 692 case 2: 693 supported_methods = CISS_TRANSPORT_METHOD_PERF; 694 break; 695 default: 696 /* 697 * Override the capabilities of the BOARD and specify SIMPLE 698 * MODE 699 */ 700 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 701 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 702 else 703 supported_methods = sc->ciss_cfg->supported_methods; 704 break; 705 } 706 707setup: 708 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 709 method = CISS_TRANSPORT_METHOD_PERF; 710 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 711 sc->ciss_cfg->transport_offset); 712 if (ciss_init_perf(sc)) { 713 supported_methods &= ~method; 714 goto setup; 715 } 716 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 717 method = CISS_TRANSPORT_METHOD_SIMPLE; 718 } else { 719 ciss_printf(sc, "No supported transport methods: 0x%x\n", 720 sc->ciss_cfg->supported_methods); 721 return(ENXIO); 722 } 723 724 /* 725 * Tell it we're using the low 4GB of RAM. Set the default interrupt 726 * coalescing options. 727 */ 728 sc->ciss_cfg->requested_method = method; 729 sc->ciss_cfg->command_physlimit = 0; 730 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 731 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 732 733#ifdef __i386__ 734 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 735#endif 736 737 if (ciss_update_config(sc)) { 738 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 739 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 740 return(ENXIO); 741 } 742 if ((sc->ciss_cfg->active_method & method) == 0) { 743 supported_methods &= ~method; 744 if (supported_methods == 0) { 745 ciss_printf(sc, "adapter refuses to go into available transports " 746 "mode (0x%x, 0x%x)\n", supported_methods, 747 sc->ciss_cfg->active_method); 748 return(ENXIO); 749 } else 750 goto setup; 751 } 752 753 /* 754 * Wait for the adapter to come ready. 755 */ 756 if ((error = ciss_wait_adapter(sc)) != 0) 757 return(error); 758 759 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 760 * interrupts have a rid of 0, this will be overridden if MSIX is used. 761 */ 762 sc->ciss_irq_rid[0] = 0; 763 if (method == CISS_TRANSPORT_METHOD_PERF) { 764 ciss_printf(sc, "PERFORMANT Transport\n"); 765 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 766 intr = ciss_perf_msi_intr; 767 } else { 768 intr = ciss_perf_intr; 769 } 770 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 771 * Unfortunately, there is no good way to know if this is a SAS 772 * controller. Hopefully enabling this bit universally will work OK. 773 * It seems to work fine for SA6i controllers. 774 */ 775 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 776 777 } else { 778 ciss_printf(sc, "SIMPLE Transport\n"); 779 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 780 if (ciss_force_interrupt == 2) 781 /* If this fails, we automatically revert to INTx */ 782 ciss_setup_msix(sc); 783 sc->ciss_perf = NULL; 784 intr = ciss_intr; 785 sc->ciss_interrupt_mask = sqmask; 786 } 787 788 /* 789 * Turn off interrupts before we go routing anything. 790 */ 791 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 792 793 /* 794 * Allocate and set up our interrupt. 795 */ 796 if ((sc->ciss_irq_resource = 797 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 798 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 799 ciss_printf(sc, "can't allocate interrupt\n"); 800 return(ENXIO); 801 } 802 803 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 804 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 805 &sc->ciss_intr)) { 806 ciss_printf(sc, "can't set up interrupt\n"); 807 return(ENXIO); 808 } 809 810 /* 811 * Allocate the parent bus DMA tag appropriate for our PCI 812 * interface. 813 * 814 * Note that "simple" adapters can only address within a 32-bit 815 * span. 816 */ 817 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 818 1, 0, /* alignment, boundary */ 819 BUS_SPACE_MAXADDR, /* lowaddr */ 820 BUS_SPACE_MAXADDR, /* highaddr */ 821 NULL, NULL, /* filter, filterarg */ 822 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 823 CISS_MAX_SG_ELEMENTS, /* nsegments */ 824 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 825 0, /* flags */ 826 NULL, NULL, /* lockfunc, lockarg */ 827 &sc->ciss_parent_dmat)) { 828 ciss_printf(sc, "can't allocate parent DMA tag\n"); 829 return(ENOMEM); 830 } 831 832 /* 833 * Create DMA tag for mapping buffers into adapter-addressable 834 * space. 835 */ 836 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 837 1, 0, /* alignment, boundary */ 838 BUS_SPACE_MAXADDR, /* lowaddr */ 839 BUS_SPACE_MAXADDR, /* highaddr */ 840 NULL, NULL, /* filter, filterarg */ 841 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 842 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 843 BUS_DMA_ALLOCNOW, /* flags */ 844 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 845 &sc->ciss_buffer_dmat)) { 846 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 847 return(ENOMEM); 848 } 849 return(0); 850} 851 852/************************************************************************ 853 * Setup MSI/MSIX operation (Performant only) 854 * Four interrupts are available, but we only use 1 right now. If MSI-X 855 * isn't avaialble, try using MSI instead. 856 */ 857static int 858ciss_setup_msix(struct ciss_softc *sc) 859{ 860 int val, i; 861 862 /* Weed out devices that don't actually support MSI */ 863 i = ciss_lookup(sc->ciss_dev); 864 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 865 return (EINVAL); 866 867 /* 868 * Only need to use the minimum number of MSI vectors, as the driver 869 * doesn't support directed MSIX interrupts. 870 */ 871 val = pci_msix_count(sc->ciss_dev); 872 if (val < CISS_MSI_COUNT) { 873 val = pci_msi_count(sc->ciss_dev); 874 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 875 if (val < CISS_MSI_COUNT) 876 return (EINVAL); 877 } 878 val = MIN(val, CISS_MSI_COUNT); 879 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 880 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 881 return (EINVAL); 882 } 883 884 sc->ciss_msi = val; 885 if (bootverbose) 886 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 887 (val != 1) ? "s" : ""); 888 889 for (i = 0; i < val; i++) 890 sc->ciss_irq_rid[i] = i + 1; 891 892 return (0); 893 894} 895 896/************************************************************************ 897 * Setup the Performant structures. 898 */ 899static int 900ciss_init_perf(struct ciss_softc *sc) 901{ 902 struct ciss_perf_config *pc = sc->ciss_perf; 903 int reply_size; 904 905 /* 906 * Create the DMA tag for the reply queue. 907 */ 908 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 909 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 910 1, 0, /* alignment, boundary */ 911 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 912 BUS_SPACE_MAXADDR, /* highaddr */ 913 NULL, NULL, /* filter, filterarg */ 914 reply_size, 1, /* maxsize, nsegments */ 915 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 916 0, /* flags */ 917 NULL, NULL, /* lockfunc, lockarg */ 918 &sc->ciss_reply_dmat)) { 919 ciss_printf(sc, "can't allocate reply DMA tag\n"); 920 return(ENOMEM); 921 } 922 /* 923 * Allocate memory and make it available for DMA. 924 */ 925 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 926 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 927 ciss_printf(sc, "can't allocate reply memory\n"); 928 return(ENOMEM); 929 } 930 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 931 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 932 bzero(sc->ciss_reply, reply_size); 933 934 sc->ciss_cycle = 0x1; 935 sc->ciss_rqidx = 0; 936 937 /* 938 * Preload the fetch table with common command sizes. This allows the 939 * hardware to not waste bus cycles for typical i/o commands, but also not 940 * tax the driver to be too exact in choosing sizes. The table is optimized 941 * for page-aligned i/o's, but since most i/o comes from the various pagers, 942 * it's a reasonable assumption to make. 943 */ 944 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 945 pc->fetch_count[CISS_SG_FETCH_1] = 946 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 947 pc->fetch_count[CISS_SG_FETCH_2] = 948 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 949 pc->fetch_count[CISS_SG_FETCH_4] = 950 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 951 pc->fetch_count[CISS_SG_FETCH_8] = 952 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 953 pc->fetch_count[CISS_SG_FETCH_16] = 954 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 955 pc->fetch_count[CISS_SG_FETCH_32] = 956 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 957 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 958 959 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 960 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 961 pc->rq_bank_hi = 0; 962 pc->rq_bank_lo = 0; 963 pc->rq[0].rq_addr_hi = 0x0; 964 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 965 966 return(0); 967} 968 969/************************************************************************ 970 * Wait for the adapter to come ready. 971 */ 972static int 973ciss_wait_adapter(struct ciss_softc *sc) 974{ 975 int i; 976 977 debug_called(1); 978 979 /* 980 * Wait for the adapter to come ready. 981 */ 982 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 983 ciss_printf(sc, "waiting for adapter to come ready...\n"); 984 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 985 DELAY(1000000); /* one second */ 986 if (i > 30) { 987 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 988 return(EIO); 989 } 990 } 991 } 992 return(0); 993} 994 995/************************************************************************ 996 * Flush the adapter cache. 997 */ 998static int 999ciss_flush_adapter(struct ciss_softc *sc) 1000{ 1001 struct ciss_request *cr; 1002 struct ciss_bmic_flush_cache *cbfc; 1003 int error, command_status; 1004 1005 debug_called(1); 1006 1007 cr = NULL; 1008 cbfc = NULL; 1009 1010 /* 1011 * Build a BMIC request to flush the cache. We don't disable 1012 * it, as we may be going to do more I/O (eg. we are emulating 1013 * the Synchronise Cache command). 1014 */ 1015 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1016 error = ENOMEM; 1017 goto out; 1018 } 1019 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1020 (void **)&cbfc, sizeof(*cbfc))) != 0) 1021 goto out; 1022 1023 /* 1024 * Submit the request and wait for it to complete. 1025 */ 1026 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1027 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1028 goto out; 1029 } 1030 1031 /* 1032 * Check response. 1033 */ 1034 ciss_report_request(cr, &command_status, NULL); 1035 switch(command_status) { 1036 case CISS_CMD_STATUS_SUCCESS: 1037 break; 1038 default: 1039 ciss_printf(sc, "error flushing cache (%s)\n", 1040 ciss_name_command_status(command_status)); 1041 error = EIO; 1042 goto out; 1043 } 1044 1045out: 1046 if (cbfc != NULL) 1047 free(cbfc, CISS_MALLOC_CLASS); 1048 if (cr != NULL) 1049 ciss_release_request(cr); 1050 return(error); 1051} 1052 1053static void 1054ciss_soft_reset(struct ciss_softc *sc) 1055{ 1056 struct ciss_request *cr = NULL; 1057 struct ciss_command *cc; 1058 int i, error = 0; 1059 1060 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1061 /* only reset proxy controllers */ 1062 if (sc->ciss_controllers[i].physical.bus == 0) 1063 continue; 1064 1065 if ((error = ciss_get_request(sc, &cr)) != 0) 1066 break; 1067 1068 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1069 NULL, 0)) != 0) 1070 break; 1071 1072 cc = cr->cr_cc; 1073 cc->header.address = sc->ciss_controllers[i]; 1074 1075 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1076 break; 1077 1078 ciss_release_request(cr); 1079 } 1080 1081 if (error) 1082 ciss_printf(sc, "error resetting controller (%d)\n", error); 1083 1084 if (cr != NULL) 1085 ciss_release_request(cr); 1086} 1087 1088/************************************************************************ 1089 * Allocate memory for the adapter command structures, initialise 1090 * the request structures. 1091 * 1092 * Note that the entire set of commands are allocated in a single 1093 * contiguous slab. 1094 */ 1095static int 1096ciss_init_requests(struct ciss_softc *sc) 1097{ 1098 struct ciss_request *cr; 1099 int i; 1100 1101 debug_called(1); 1102 1103 if (bootverbose) 1104 ciss_printf(sc, "using %d of %d available commands\n", 1105 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1106 1107 /* 1108 * Create the DMA tag for commands. 1109 */ 1110 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1111 32, 0, /* alignment, boundary */ 1112 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1113 BUS_SPACE_MAXADDR, /* highaddr */ 1114 NULL, NULL, /* filter, filterarg */ 1115 CISS_COMMAND_ALLOC_SIZE * 1116 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1117 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1118 0, /* flags */ 1119 NULL, NULL, /* lockfunc, lockarg */ 1120 &sc->ciss_command_dmat)) { 1121 ciss_printf(sc, "can't allocate command DMA tag\n"); 1122 return(ENOMEM); 1123 } 1124 /* 1125 * Allocate memory and make it available for DMA. 1126 */ 1127 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1128 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1129 ciss_printf(sc, "can't allocate command memory\n"); 1130 return(ENOMEM); 1131 } 1132 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1133 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1134 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1135 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1136 1137 /* 1138 * Set up the request and command structures, push requests onto 1139 * the free queue. 1140 */ 1141 for (i = 1; i < sc->ciss_max_requests; i++) { 1142 cr = &sc->ciss_request[i]; 1143 cr->cr_sc = sc; 1144 cr->cr_tag = i; 1145 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1146 CISS_COMMAND_ALLOC_SIZE * i); 1147 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1148 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1149 ciss_enqueue_free(cr); 1150 } 1151 return(0); 1152} 1153 1154static void 1155ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1156{ 1157 uint32_t *addr; 1158 1159 addr = arg; 1160 *addr = segs[0].ds_addr; 1161} 1162 1163/************************************************************************ 1164 * Identify the adapter, print some information about it. 1165 */ 1166static int 1167ciss_identify_adapter(struct ciss_softc *sc) 1168{ 1169 struct ciss_request *cr; 1170 int error, command_status; 1171 1172 debug_called(1); 1173 1174 cr = NULL; 1175 1176 /* 1177 * Get a request, allocate storage for the adapter data. 1178 */ 1179 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1180 (void **)&sc->ciss_id, 1181 sizeof(*sc->ciss_id))) != 0) 1182 goto out; 1183 1184 /* 1185 * Submit the request and wait for it to complete. 1186 */ 1187 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1188 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1189 goto out; 1190 } 1191 1192 /* 1193 * Check response. 1194 */ 1195 ciss_report_request(cr, &command_status, NULL); 1196 switch(command_status) { 1197 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1198 break; 1199 case CISS_CMD_STATUS_DATA_UNDERRUN: 1200 case CISS_CMD_STATUS_DATA_OVERRUN: 1201 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1202 default: 1203 ciss_printf(sc, "error reading adapter information (%s)\n", 1204 ciss_name_command_status(command_status)); 1205 error = EIO; 1206 goto out; 1207 } 1208 1209 /* sanity-check reply */ 1210 if (!sc->ciss_id->big_map_supported) { 1211 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1212 error = ENXIO; 1213 goto out; 1214 } 1215 1216#if 0 1217 /* XXX later revisions may not need this */ 1218 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1219#endif 1220 1221 /* XXX only really required for old 5300 adapters? */ 1222 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1223 1224 /* 1225 * Earlier controller specs do not contain these config 1226 * entries, so assume that a 0 means its old and assign 1227 * these values to the defaults that were established 1228 * when this driver was developed for them 1229 */ 1230 if (sc->ciss_cfg->max_logical_supported == 0) 1231 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1232 if (sc->ciss_cfg->max_physical_supported == 0) 1233 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1234 /* print information */ 1235 if (bootverbose) { 1236 ciss_printf(sc, " %d logical drive%s configured\n", 1237 sc->ciss_id->configured_logical_drives, 1238 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1239 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1240 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1241 1242 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1243 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1244 ciss_printf(sc, " supported I/O methods 0x%b\n", 1245 sc->ciss_cfg->supported_methods, 1246 "\20\1READY\2simple\3performant\4MEMQ\n"); 1247 ciss_printf(sc, " active I/O method 0x%b\n", 1248 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1249 ciss_printf(sc, " 4G page base 0x%08x\n", 1250 sc->ciss_cfg->command_physlimit); 1251 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1252 sc->ciss_cfg->interrupt_coalesce_delay); 1253 ciss_printf(sc, " interrupt coalesce count %d\n", 1254 sc->ciss_cfg->interrupt_coalesce_count); 1255 ciss_printf(sc, " max outstanding commands %d\n", 1256 sc->ciss_cfg->max_outstanding_commands); 1257 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1258 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1259 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1260 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1261 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1262 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1263 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1264 } 1265 1266out: 1267 if (error) { 1268 if (sc->ciss_id != NULL) { 1269 free(sc->ciss_id, CISS_MALLOC_CLASS); 1270 sc->ciss_id = NULL; 1271 } 1272 } 1273 if (cr != NULL) 1274 ciss_release_request(cr); 1275 return(error); 1276} 1277 1278/************************************************************************ 1279 * Helper routine for generating a list of logical and physical luns. 1280 */ 1281static struct ciss_lun_report * 1282ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1283{ 1284 struct ciss_request *cr; 1285 struct ciss_command *cc; 1286 struct ciss_report_cdb *crc; 1287 struct ciss_lun_report *cll; 1288 int command_status; 1289 int report_size; 1290 int error = 0; 1291 1292 debug_called(1); 1293 1294 cr = NULL; 1295 cll = NULL; 1296 1297 /* 1298 * Get a request, allocate storage for the address list. 1299 */ 1300 if ((error = ciss_get_request(sc, &cr)) != 0) 1301 goto out; 1302 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1303 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1304 ciss_printf(sc, "can't allocate memory for lun report\n"); 1305 error = ENOMEM; 1306 goto out; 1307 } 1308 1309 /* 1310 * Build the Report Logical/Physical LUNs command. 1311 */ 1312 cc = cr->cr_cc; 1313 cr->cr_data = cll; 1314 cr->cr_length = report_size; 1315 cr->cr_flags = CISS_REQ_DATAIN; 1316 1317 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1318 cc->header.address.physical.bus = 0; 1319 cc->header.address.physical.target = 0; 1320 cc->cdb.cdb_length = sizeof(*crc); 1321 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1322 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1323 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1324 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1325 1326 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1327 bzero(crc, sizeof(*crc)); 1328 crc->opcode = opcode; 1329 crc->length = htonl(report_size); /* big-endian field */ 1330 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1331 1332 /* 1333 * Submit the request and wait for it to complete. (timeout 1334 * here should be much greater than above) 1335 */ 1336 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1337 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1338 goto out; 1339 } 1340 1341 /* 1342 * Check response. Note that data over/underrun is OK. 1343 */ 1344 ciss_report_request(cr, &command_status, NULL); 1345 switch(command_status) { 1346 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1347 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1348 break; 1349 case CISS_CMD_STATUS_DATA_OVERRUN: 1350 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1351 sc->ciss_cfg->max_logical_supported); 1352 break; 1353 default: 1354 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1355 ciss_name_command_status(command_status)); 1356 error = EIO; 1357 goto out; 1358 } 1359 ciss_release_request(cr); 1360 cr = NULL; 1361 1362out: 1363 if (cr != NULL) 1364 ciss_release_request(cr); 1365 if (error && cll != NULL) { 1366 free(cll, CISS_MALLOC_CLASS); 1367 cll = NULL; 1368 } 1369 return(cll); 1370} 1371 1372/************************************************************************ 1373 * Find logical drives on the adapter. 1374 */ 1375static int 1376ciss_init_logical(struct ciss_softc *sc) 1377{ 1378 struct ciss_lun_report *cll; 1379 int error = 0, i, j; 1380 int ndrives; 1381 1382 debug_called(1); 1383 1384 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1385 sc->ciss_cfg->max_logical_supported); 1386 if (cll == NULL) { 1387 error = ENXIO; 1388 goto out; 1389 } 1390 1391 /* sanity-check reply */ 1392 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1393 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1394 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1395 ndrives, sc->ciss_cfg->max_logical_supported); 1396 error = ENXIO; 1397 goto out; 1398 } 1399 1400 /* 1401 * Save logical drive information. 1402 */ 1403 if (bootverbose) { 1404 ciss_printf(sc, "%d logical drive%s\n", 1405 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1406 } 1407 1408 sc->ciss_logical = 1409 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1410 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1411 if (sc->ciss_logical == NULL) { 1412 error = ENXIO; 1413 goto out; 1414 } 1415 1416 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1417 sc->ciss_logical[i] = 1418 malloc(sc->ciss_cfg->max_logical_supported * 1419 sizeof(struct ciss_ldrive), 1420 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1421 if (sc->ciss_logical[i] == NULL) { 1422 error = ENXIO; 1423 goto out; 1424 } 1425 1426 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1427 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1428 } 1429 1430 1431 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1432 if (i < ndrives) { 1433 struct ciss_ldrive *ld; 1434 int bus, target; 1435 1436 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1437 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1438 ld = &sc->ciss_logical[bus][target]; 1439 1440 ld->cl_address = cll->lun[i]; 1441 ld->cl_controller = &sc->ciss_controllers[bus]; 1442 if (ciss_identify_logical(sc, ld) != 0) 1443 continue; 1444 /* 1445 * If the drive has had media exchanged, we should bring it online. 1446 */ 1447 if (ld->cl_lstatus->media_exchanged) 1448 ciss_accept_media(sc, ld); 1449 1450 } 1451 } 1452 1453 out: 1454 if (cll != NULL) 1455 free(cll, CISS_MALLOC_CLASS); 1456 return(error); 1457} 1458 1459static int 1460ciss_init_physical(struct ciss_softc *sc) 1461{ 1462 struct ciss_lun_report *cll; 1463 int error = 0, i; 1464 int nphys; 1465 int bus, target; 1466 1467 debug_called(1); 1468 1469 bus = 0; 1470 target = 0; 1471 1472 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1473 sc->ciss_cfg->max_physical_supported); 1474 if (cll == NULL) { 1475 error = ENXIO; 1476 goto out; 1477 } 1478 1479 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1480 1481 if (bootverbose) { 1482 ciss_printf(sc, "%d physical device%s\n", 1483 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1484 } 1485 1486 /* 1487 * Figure out the bus mapping. 1488 * Logical buses include both the local logical bus for local arrays and 1489 * proxy buses for remote arrays. Physical buses are numbered by the 1490 * controller and represent physical buses that hold physical devices. 1491 * We shift these bus numbers so that everything fits into a single flat 1492 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1493 * numbers, and the physical bus numbers are shifted to be above that. 1494 * This results in the various driver arrays being indexed as follows: 1495 * 1496 * ciss_controllers[] - indexed by logical bus 1497 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1498 * being shifted by 32. 1499 * ciss_logical[][] - indexed by logical bus 1500 * ciss_physical[][] - indexed by physical bus 1501 * 1502 * XXX This is getting more and more hackish. CISS really doesn't play 1503 * well with a standard SCSI model; devices are addressed via magic 1504 * cookies, not via b/t/l addresses. Since there is no way to store 1505 * the cookie in the CAM device object, we have to keep these lookup 1506 * tables handy so that the devices can be found quickly at the cost 1507 * of wasting memory and having a convoluted lookup scheme. This 1508 * driver should probably be converted to block interface. 1509 */ 1510 /* 1511 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1512 * controller. A proxy controller is another physical controller 1513 * behind the primary PCI controller. We need to know about this 1514 * so that BMIC commands can be properly targeted. There can be 1515 * proxy controllers attached to a single PCI controller, so 1516 * find the highest numbered one so the array can be properly 1517 * sized. 1518 */ 1519 sc->ciss_max_logical_bus = 1; 1520 for (i = 0; i < nphys; i++) { 1521 if (cll->lun[i].physical.extra_address == 0) { 1522 bus = cll->lun[i].physical.bus; 1523 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1524 } else { 1525 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1526 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1527 } 1528 } 1529 1530 sc->ciss_controllers = 1531 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1532 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1533 1534 if (sc->ciss_controllers == NULL) { 1535 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1536 error = ENOMEM; 1537 goto out; 1538 } 1539 1540 /* setup a map of controller addresses */ 1541 for (i = 0; i < nphys; i++) { 1542 if (cll->lun[i].physical.extra_address == 0) { 1543 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1544 } 1545 } 1546 1547 sc->ciss_physical = 1548 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1549 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1550 if (sc->ciss_physical == NULL) { 1551 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1552 error = ENOMEM; 1553 goto out; 1554 } 1555 1556 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1557 sc->ciss_physical[i] = 1558 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1559 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1560 if (sc->ciss_physical[i] == NULL) { 1561 ciss_printf(sc, "Could not allocate memory for target map\n"); 1562 error = ENOMEM; 1563 goto out; 1564 } 1565 } 1566 1567 ciss_filter_physical(sc, cll); 1568 1569out: 1570 if (cll != NULL) 1571 free(cll, CISS_MALLOC_CLASS); 1572 1573 return(error); 1574} 1575 1576static int 1577ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1578{ 1579 u_int32_t ea; 1580 int i, nphys; 1581 int bus, target; 1582 1583 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1584 for (i = 0; i < nphys; i++) { 1585 if (cll->lun[i].physical.extra_address == 0) 1586 continue; 1587 1588 /* 1589 * Filter out devices that we don't want. Level 3 LUNs could 1590 * probably be supported, but the docs don't give enough of a 1591 * hint to know how. 1592 * 1593 * The mode field of the physical address is likely set to have 1594 * hard disks masked out. Honor it unless the user has overridden 1595 * us with the tunable. We also munge the inquiry data for these 1596 * disks so that they only show up as passthrough devices. Keeping 1597 * them visible in this fashion is useful for doing things like 1598 * flashing firmware. 1599 */ 1600 ea = cll->lun[i].physical.extra_address; 1601 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1602 (CISS_EXTRA_MODE2(ea) == 0x3)) 1603 continue; 1604 if ((ciss_expose_hidden_physical == 0) && 1605 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1606 continue; 1607 1608 /* 1609 * Note: CISS firmware numbers physical busses starting at '1', not 1610 * '0'. This numbering is internal to the firmware and is only 1611 * used as a hint here. 1612 */ 1613 bus = CISS_EXTRA_BUS2(ea) - 1; 1614 target = CISS_EXTRA_TARGET2(ea); 1615 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1616 sc->ciss_physical[bus][target].cp_online = 1; 1617 } 1618 1619 return (0); 1620} 1621 1622static int 1623ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1624{ 1625 struct ciss_request *cr; 1626 struct ciss_command *cc; 1627 struct scsi_inquiry *inq; 1628 int error; 1629 int command_status; 1630 1631 cr = NULL; 1632 1633 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1634 1635 if ((error = ciss_get_request(sc, &cr)) != 0) 1636 goto out; 1637 1638 cc = cr->cr_cc; 1639 cr->cr_data = &ld->cl_geometry; 1640 cr->cr_length = sizeof(ld->cl_geometry); 1641 cr->cr_flags = CISS_REQ_DATAIN; 1642 1643 cc->header.address = ld->cl_address; 1644 cc->cdb.cdb_length = 6; 1645 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1646 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1647 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1648 cc->cdb.timeout = 30; 1649 1650 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1651 inq->opcode = INQUIRY; 1652 inq->byte2 = SI_EVPD; 1653 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1654 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1655 1656 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1657 ciss_printf(sc, "error getting geometry (%d)\n", error); 1658 goto out; 1659 } 1660 1661 ciss_report_request(cr, &command_status, NULL); 1662 switch(command_status) { 1663 case CISS_CMD_STATUS_SUCCESS: 1664 case CISS_CMD_STATUS_DATA_UNDERRUN: 1665 break; 1666 case CISS_CMD_STATUS_DATA_OVERRUN: 1667 ciss_printf(sc, "WARNING: Data overrun\n"); 1668 break; 1669 default: 1670 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1671 ciss_name_command_status(command_status)); 1672 break; 1673 } 1674 1675out: 1676 if (cr != NULL) 1677 ciss_release_request(cr); 1678 return(error); 1679} 1680/************************************************************************ 1681 * Identify a logical drive, initialise state related to it. 1682 */ 1683static int 1684ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1685{ 1686 struct ciss_request *cr; 1687 struct ciss_command *cc; 1688 struct ciss_bmic_cdb *cbc; 1689 int error, command_status; 1690 1691 debug_called(1); 1692 1693 cr = NULL; 1694 1695 /* 1696 * Build a BMIC request to fetch the drive ID. 1697 */ 1698 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1699 (void **)&ld->cl_ldrive, 1700 sizeof(*ld->cl_ldrive))) != 0) 1701 goto out; 1702 cc = cr->cr_cc; 1703 cc->header.address = *ld->cl_controller; /* target controller */ 1704 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1705 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1706 1707 /* 1708 * Submit the request and wait for it to complete. 1709 */ 1710 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1711 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1712 goto out; 1713 } 1714 1715 /* 1716 * Check response. 1717 */ 1718 ciss_report_request(cr, &command_status, NULL); 1719 switch(command_status) { 1720 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1721 break; 1722 case CISS_CMD_STATUS_DATA_UNDERRUN: 1723 case CISS_CMD_STATUS_DATA_OVERRUN: 1724 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1725 default: 1726 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1727 ciss_name_command_status(command_status)); 1728 error = EIO; 1729 goto out; 1730 } 1731 ciss_release_request(cr); 1732 cr = NULL; 1733 1734 /* 1735 * Build a CISS BMIC command to get the logical drive status. 1736 */ 1737 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1738 goto out; 1739 1740 /* 1741 * Get the logical drive geometry. 1742 */ 1743 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1744 goto out; 1745 1746 /* 1747 * Print the drive's basic characteristics. 1748 */ 1749 if (bootverbose) { 1750 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1751 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1752 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1753 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1754 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1755 ld->cl_ldrive->block_size)); 1756 1757 ciss_print_ldrive(sc, ld); 1758 } 1759out: 1760 if (error != 0) { 1761 /* make the drive not-exist */ 1762 ld->cl_status = CISS_LD_NONEXISTENT; 1763 if (ld->cl_ldrive != NULL) { 1764 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1765 ld->cl_ldrive = NULL; 1766 } 1767 if (ld->cl_lstatus != NULL) { 1768 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1769 ld->cl_lstatus = NULL; 1770 } 1771 } 1772 if (cr != NULL) 1773 ciss_release_request(cr); 1774 1775 return(error); 1776} 1777 1778/************************************************************************ 1779 * Get status for a logical drive. 1780 * 1781 * XXX should we also do this in response to Test Unit Ready? 1782 */ 1783static int 1784ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1785{ 1786 struct ciss_request *cr; 1787 struct ciss_command *cc; 1788 struct ciss_bmic_cdb *cbc; 1789 int error, command_status; 1790 1791 /* 1792 * Build a CISS BMIC command to get the logical drive status. 1793 */ 1794 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1795 (void **)&ld->cl_lstatus, 1796 sizeof(*ld->cl_lstatus))) != 0) 1797 goto out; 1798 cc = cr->cr_cc; 1799 cc->header.address = *ld->cl_controller; /* target controller */ 1800 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1801 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1802 1803 /* 1804 * Submit the request and wait for it to complete. 1805 */ 1806 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1807 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1808 goto out; 1809 } 1810 1811 /* 1812 * Check response. 1813 */ 1814 ciss_report_request(cr, &command_status, NULL); 1815 switch(command_status) { 1816 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1817 break; 1818 case CISS_CMD_STATUS_DATA_UNDERRUN: 1819 case CISS_CMD_STATUS_DATA_OVERRUN: 1820 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1821 default: 1822 ciss_printf(sc, "error reading logical drive status (%s)\n", 1823 ciss_name_command_status(command_status)); 1824 error = EIO; 1825 goto out; 1826 } 1827 1828 /* 1829 * Set the drive's summary status based on the returned status. 1830 * 1831 * XXX testing shows that a failed JBOD drive comes back at next 1832 * boot in "queued for expansion" mode. WTF? 1833 */ 1834 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1835 1836out: 1837 if (cr != NULL) 1838 ciss_release_request(cr); 1839 return(error); 1840} 1841 1842/************************************************************************ 1843 * Notify the adapter of a config update. 1844 */ 1845static int 1846ciss_update_config(struct ciss_softc *sc) 1847{ 1848 int i; 1849 1850 debug_called(1); 1851 1852 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1853 for (i = 0; i < 1000; i++) { 1854 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1855 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1856 return(0); 1857 } 1858 DELAY(1000); 1859 } 1860 return(1); 1861} 1862 1863/************************************************************************ 1864 * Accept new media into a logical drive. 1865 * 1866 * XXX The drive has previously been offline; it would be good if we 1867 * could make sure it's not open right now. 1868 */ 1869static int 1870ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1871{ 1872 struct ciss_request *cr; 1873 struct ciss_command *cc; 1874 struct ciss_bmic_cdb *cbc; 1875 int command_status; 1876 int error = 0, ldrive; 1877 1878 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1879 1880 debug(0, "bringing logical drive %d back online", ldrive); 1881 1882 /* 1883 * Build a CISS BMIC command to bring the drive back online. 1884 */ 1885 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1886 NULL, 0)) != 0) 1887 goto out; 1888 cc = cr->cr_cc; 1889 cc->header.address = *ld->cl_controller; /* target controller */ 1890 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1891 cbc->log_drive = ldrive; 1892 1893 /* 1894 * Submit the request and wait for it to complete. 1895 */ 1896 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1897 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1898 goto out; 1899 } 1900 1901 /* 1902 * Check response. 1903 */ 1904 ciss_report_request(cr, &command_status, NULL); 1905 switch(command_status) { 1906 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1907 /* we should get a logical drive status changed event here */ 1908 break; 1909 default: 1910 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1911 ciss_name_command_status(command_status)); 1912 break; 1913 } 1914 1915out: 1916 if (cr != NULL) 1917 ciss_release_request(cr); 1918 return(error); 1919} 1920 1921/************************************************************************ 1922 * Release adapter resources. 1923 */ 1924static void 1925ciss_free(struct ciss_softc *sc) 1926{ 1927 struct ciss_request *cr; 1928 int i, j; 1929 1930 debug_called(1); 1931 1932 /* we're going away */ 1933 sc->ciss_flags |= CISS_FLAG_ABORTING; 1934 1935 /* terminate the periodic heartbeat routine */ 1936 callout_stop(&sc->ciss_periodic); 1937 1938 /* cancel the Event Notify chain */ 1939 ciss_notify_abort(sc); 1940 1941 ciss_kill_notify_thread(sc); 1942 1943 /* disconnect from CAM */ 1944 if (sc->ciss_cam_sim) { 1945 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1946 if (sc->ciss_cam_sim[i]) { 1947 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1948 cam_sim_free(sc->ciss_cam_sim[i], 0); 1949 } 1950 } 1951 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1952 CISS_PHYSICAL_BASE; i++) { 1953 if (sc->ciss_cam_sim[i]) { 1954 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1955 cam_sim_free(sc->ciss_cam_sim[i], 0); 1956 } 1957 } 1958 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1959 } 1960 if (sc->ciss_cam_devq) 1961 cam_simq_free(sc->ciss_cam_devq); 1962 1963 /* remove the control device */ 1964 mtx_unlock(&sc->ciss_mtx); 1965 if (sc->ciss_dev_t != NULL) 1966 destroy_dev(sc->ciss_dev_t); 1967 1968 /* Final cleanup of the callout. */ 1969 callout_drain(&sc->ciss_periodic); 1970 mtx_destroy(&sc->ciss_mtx); 1971 1972 /* free the controller data */ 1973 if (sc->ciss_id != NULL) 1974 free(sc->ciss_id, CISS_MALLOC_CLASS); 1975 1976 /* release I/O resources */ 1977 if (sc->ciss_regs_resource != NULL) 1978 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1979 sc->ciss_regs_rid, sc->ciss_regs_resource); 1980 if (sc->ciss_cfg_resource != NULL) 1981 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1982 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1983 if (sc->ciss_intr != NULL) 1984 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1985 if (sc->ciss_irq_resource != NULL) 1986 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1987 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1988 if (sc->ciss_msi) 1989 pci_release_msi(sc->ciss_dev); 1990 1991 while ((cr = ciss_dequeue_free(sc)) != NULL) 1992 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1993 if (sc->ciss_buffer_dmat) 1994 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1995 1996 /* destroy command memory and DMA tag */ 1997 if (sc->ciss_command != NULL) { 1998 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1999 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2000 } 2001 if (sc->ciss_command_dmat) 2002 bus_dma_tag_destroy(sc->ciss_command_dmat); 2003 2004 if (sc->ciss_reply) { 2005 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2006 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2007 } 2008 if (sc->ciss_reply_dmat) 2009 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2010 2011 /* destroy DMA tags */ 2012 if (sc->ciss_parent_dmat) 2013 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2014 if (sc->ciss_logical) { 2015 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 2016 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2017 if (sc->ciss_logical[i][j].cl_ldrive) 2018 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2019 if (sc->ciss_logical[i][j].cl_lstatus) 2020 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2021 } 2022 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2023 } 2024 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2025 } 2026 2027 if (sc->ciss_physical) { 2028 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2029 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2030 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2031 } 2032 2033 if (sc->ciss_controllers) 2034 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2035 2036} 2037 2038/************************************************************************ 2039 * Give a command to the adapter. 2040 * 2041 * Note that this uses the simple transport layer directly. If we 2042 * want to add support for other layers, we'll need a switch of some 2043 * sort. 2044 * 2045 * Note that the simple transport layer has no way of refusing a 2046 * command; we only have as many request structures as the adapter 2047 * supports commands, so we don't have to check (this presumes that 2048 * the adapter can handle commands as fast as we throw them at it). 2049 */ 2050static int 2051ciss_start(struct ciss_request *cr) 2052{ 2053 struct ciss_command *cc; /* XXX debugging only */ 2054 int error; 2055 2056 cc = cr->cr_cc; 2057 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2058 2059 /* 2060 * Map the request's data. 2061 */ 2062 if ((error = ciss_map_request(cr))) 2063 return(error); 2064 2065#if 0 2066 ciss_print_request(cr); 2067#endif 2068 2069 return(0); 2070} 2071 2072/************************************************************************ 2073 * Fetch completed request(s) from the adapter, queue them for 2074 * completion handling. 2075 * 2076 * Note that this uses the simple transport layer directly. If we 2077 * want to add support for other layers, we'll need a switch of some 2078 * sort. 2079 * 2080 * Note that the simple transport mechanism does not require any 2081 * reentrancy protection; the OPQ read is atomic. If there is a 2082 * chance of a race with something else that might move the request 2083 * off the busy list, then we will have to lock against that 2084 * (eg. timeouts, etc.) 2085 */ 2086static void 2087ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2088{ 2089 struct ciss_request *cr; 2090 struct ciss_command *cc; 2091 u_int32_t tag, index; 2092 2093 debug_called(3); 2094 2095 /* 2096 * Loop quickly taking requests from the adapter and moving them 2097 * to the completed queue. 2098 */ 2099 for (;;) { 2100 2101 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2102 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2103 break; 2104 index = tag >> 2; 2105 debug(2, "completed command %d%s", index, 2106 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2107 if (index >= sc->ciss_max_requests) { 2108 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2109 continue; 2110 } 2111 cr = &(sc->ciss_request[index]); 2112 cc = cr->cr_cc; 2113 cc->header.host_tag = tag; /* not updated by adapter */ 2114 ciss_enqueue_complete(cr, qh); 2115 } 2116 2117} 2118 2119static void 2120ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2121{ 2122 struct ciss_request *cr; 2123 struct ciss_command *cc; 2124 u_int32_t tag, index; 2125 2126 debug_called(3); 2127 2128 /* 2129 * Loop quickly taking requests from the adapter and moving them 2130 * to the completed queue. 2131 */ 2132 for (;;) { 2133 tag = sc->ciss_reply[sc->ciss_rqidx]; 2134 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2135 break; 2136 index = tag >> 2; 2137 debug(2, "completed command %d%s\n", index, 2138 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2139 if (index < sc->ciss_max_requests) { 2140 cr = &(sc->ciss_request[index]); 2141 cc = cr->cr_cc; 2142 cc->header.host_tag = tag; /* not updated by adapter */ 2143 ciss_enqueue_complete(cr, qh); 2144 } else { 2145 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2146 } 2147 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2148 sc->ciss_rqidx = 0; 2149 sc->ciss_cycle ^= 1; 2150 } 2151 } 2152 2153} 2154 2155/************************************************************************ 2156 * Take an interrupt from the adapter. 2157 */ 2158static void 2159ciss_intr(void *arg) 2160{ 2161 cr_qhead_t qh; 2162 struct ciss_softc *sc = (struct ciss_softc *)arg; 2163 2164 /* 2165 * The only interrupt we recognise indicates that there are 2166 * entries in the outbound post queue. 2167 */ 2168 STAILQ_INIT(&qh); 2169 ciss_done(sc, &qh); 2170 mtx_lock(&sc->ciss_mtx); 2171 ciss_complete(sc, &qh); 2172 mtx_unlock(&sc->ciss_mtx); 2173} 2174 2175static void 2176ciss_perf_intr(void *arg) 2177{ 2178 struct ciss_softc *sc = (struct ciss_softc *)arg; 2179 2180 /* Clear the interrupt and flush the bridges. Docs say that the flush 2181 * needs to be done twice, which doesn't seem right. 2182 */ 2183 CISS_TL_PERF_CLEAR_INT(sc); 2184 CISS_TL_PERF_FLUSH_INT(sc); 2185 2186 ciss_perf_msi_intr(sc); 2187} 2188 2189static void 2190ciss_perf_msi_intr(void *arg) 2191{ 2192 cr_qhead_t qh; 2193 struct ciss_softc *sc = (struct ciss_softc *)arg; 2194 2195 STAILQ_INIT(&qh); 2196 ciss_perf_done(sc, &qh); 2197 mtx_lock(&sc->ciss_mtx); 2198 ciss_complete(sc, &qh); 2199 mtx_unlock(&sc->ciss_mtx); 2200} 2201 2202 2203/************************************************************************ 2204 * Process completed requests. 2205 * 2206 * Requests can be completed in three fashions: 2207 * 2208 * - by invoking a callback function (cr_complete is non-null) 2209 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2210 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2211 */ 2212static void 2213ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2214{ 2215 struct ciss_request *cr; 2216 2217 debug_called(2); 2218 2219 /* 2220 * Loop taking requests off the completed queue and performing 2221 * completion processing on them. 2222 */ 2223 for (;;) { 2224 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2225 break; 2226 ciss_unmap_request(cr); 2227 2228 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2229 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2230 cr->cr_flags &= ~CISS_REQ_BUSY; 2231 2232 /* 2233 * If the request has a callback, invoke it. 2234 */ 2235 if (cr->cr_complete != NULL) { 2236 cr->cr_complete(cr); 2237 continue; 2238 } 2239 2240 /* 2241 * If someone is sleeping on this request, wake them up. 2242 */ 2243 if (cr->cr_flags & CISS_REQ_SLEEP) { 2244 cr->cr_flags &= ~CISS_REQ_SLEEP; 2245 wakeup(cr); 2246 continue; 2247 } 2248 2249 /* 2250 * If someone is polling this request for completion, signal. 2251 */ 2252 if (cr->cr_flags & CISS_REQ_POLL) { 2253 cr->cr_flags &= ~CISS_REQ_POLL; 2254 continue; 2255 } 2256 2257 /* 2258 * Give up and throw the request back on the free queue. This 2259 * should never happen; resources will probably be lost. 2260 */ 2261 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2262 ciss_enqueue_free(cr); 2263 } 2264} 2265 2266/************************************************************************ 2267 * Report on the completion status of a request, and pass back SCSI 2268 * and command status values. 2269 */ 2270static int 2271_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2272{ 2273 struct ciss_command *cc; 2274 struct ciss_error_info *ce; 2275 2276 debug_called(2); 2277 2278 cc = cr->cr_cc; 2279 ce = (struct ciss_error_info *)&(cc->sg[0]); 2280 2281 /* 2282 * We don't consider data under/overrun an error for the Report 2283 * Logical/Physical LUNs commands. 2284 */ 2285 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2286 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2287 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2288 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2289 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2290 (cc->cdb.cdb[0] == INQUIRY))) { 2291 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2292 debug(2, "ignoring irrelevant under/overrun error"); 2293 } 2294 2295 /* 2296 * Check the command's error bit, if clear, there's no status and 2297 * everything is OK. 2298 */ 2299 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2300 if (scsi_status != NULL) 2301 *scsi_status = SCSI_STATUS_OK; 2302 if (command_status != NULL) 2303 *command_status = CISS_CMD_STATUS_SUCCESS; 2304 return(0); 2305 } else { 2306 if (command_status != NULL) 2307 *command_status = ce->command_status; 2308 if (scsi_status != NULL) { 2309 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2310 *scsi_status = ce->scsi_status; 2311 } else { 2312 *scsi_status = -1; 2313 } 2314 } 2315 if (bootverbose) 2316 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2317 ce->command_status, ciss_name_command_status(ce->command_status), 2318 ce->scsi_status); 2319 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2320 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2321 ce->additional_error_info.invalid_command.offense_size, 2322 ce->additional_error_info.invalid_command.offense_offset, 2323 ce->additional_error_info.invalid_command.offense_value, 2324 func); 2325 } 2326 } 2327#if 0 2328 ciss_print_request(cr); 2329#endif 2330 return(1); 2331} 2332 2333/************************************************************************ 2334 * Issue a request and don't return until it's completed. 2335 * 2336 * Depending on adapter status, we may poll or sleep waiting for 2337 * completion. 2338 */ 2339static int 2340ciss_synch_request(struct ciss_request *cr, int timeout) 2341{ 2342 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2343 return(ciss_wait_request(cr, timeout)); 2344 } else { 2345 return(ciss_poll_request(cr, timeout)); 2346 } 2347} 2348 2349/************************************************************************ 2350 * Issue a request and poll for completion. 2351 * 2352 * Timeout in milliseconds. 2353 */ 2354static int 2355ciss_poll_request(struct ciss_request *cr, int timeout) 2356{ 2357 cr_qhead_t qh; 2358 struct ciss_softc *sc; 2359 int error; 2360 2361 debug_called(2); 2362 2363 STAILQ_INIT(&qh); 2364 sc = cr->cr_sc; 2365 cr->cr_flags |= CISS_REQ_POLL; 2366 if ((error = ciss_start(cr)) != 0) 2367 return(error); 2368 2369 do { 2370 if (sc->ciss_perf) 2371 ciss_perf_done(sc, &qh); 2372 else 2373 ciss_done(sc, &qh); 2374 ciss_complete(sc, &qh); 2375 if (!(cr->cr_flags & CISS_REQ_POLL)) 2376 return(0); 2377 DELAY(1000); 2378 } while (timeout-- >= 0); 2379 return(EWOULDBLOCK); 2380} 2381 2382/************************************************************************ 2383 * Issue a request and sleep waiting for completion. 2384 * 2385 * Timeout in milliseconds. Note that a spurious wakeup will reset 2386 * the timeout. 2387 */ 2388static int 2389ciss_wait_request(struct ciss_request *cr, int timeout) 2390{ 2391 int error; 2392 2393 debug_called(2); 2394 2395 cr->cr_flags |= CISS_REQ_SLEEP; 2396 if ((error = ciss_start(cr)) != 0) 2397 return(error); 2398 2399 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2400 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2401 } 2402 return(error); 2403} 2404 2405#if 0 2406/************************************************************************ 2407 * Abort a request. Note that a potential exists here to race the 2408 * request being completed; the caller must deal with this. 2409 */ 2410static int 2411ciss_abort_request(struct ciss_request *ar) 2412{ 2413 struct ciss_request *cr; 2414 struct ciss_command *cc; 2415 struct ciss_message_cdb *cmc; 2416 int error; 2417 2418 debug_called(1); 2419 2420 /* get a request */ 2421 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2422 return(error); 2423 2424 /* build the abort command */ 2425 cc = cr->cr_cc; 2426 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2427 cc->header.address.physical.target = 0; 2428 cc->header.address.physical.bus = 0; 2429 cc->cdb.cdb_length = sizeof(*cmc); 2430 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2431 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2432 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2433 cc->cdb.timeout = 30; 2434 2435 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2436 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2437 cmc->type = CISS_MESSAGE_ABORT_TASK; 2438 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2439 2440 /* 2441 * Send the request and wait for a response. If we believe we 2442 * aborted the request OK, clear the flag that indicates it's 2443 * running. 2444 */ 2445 error = ciss_synch_request(cr, 35 * 1000); 2446 if (!error) 2447 error = ciss_report_request(cr, NULL, NULL); 2448 ciss_release_request(cr); 2449 2450 return(error); 2451} 2452#endif 2453 2454 2455/************************************************************************ 2456 * Fetch and initialise a request 2457 */ 2458static int 2459ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2460{ 2461 struct ciss_request *cr; 2462 2463 debug_called(2); 2464 2465 /* 2466 * Get a request and clean it up. 2467 */ 2468 if ((cr = ciss_dequeue_free(sc)) == NULL) 2469 return(ENOMEM); 2470 2471 cr->cr_data = NULL; 2472 cr->cr_flags = 0; 2473 cr->cr_complete = NULL; 2474 cr->cr_private = NULL; 2475 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2476 2477 ciss_preen_command(cr); 2478 *crp = cr; 2479 return(0); 2480} 2481 2482static void 2483ciss_preen_command(struct ciss_request *cr) 2484{ 2485 struct ciss_command *cc; 2486 u_int32_t cmdphys; 2487 2488 /* 2489 * Clean up the command structure. 2490 * 2491 * Note that we set up the error_info structure here, since the 2492 * length can be overwritten by any command. 2493 */ 2494 cc = cr->cr_cc; 2495 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2496 cc->header.sg_total = 0; 2497 cc->header.host_tag = cr->cr_tag << 2; 2498 cc->header.host_tag_zeroes = 0; 2499 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2500 cmdphys = cr->cr_ccphys; 2501 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2502 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2503} 2504 2505/************************************************************************ 2506 * Release a request to the free list. 2507 */ 2508static void 2509ciss_release_request(struct ciss_request *cr) 2510{ 2511 struct ciss_softc *sc; 2512 2513 debug_called(2); 2514 2515 sc = cr->cr_sc; 2516 2517 /* release the request to the free queue */ 2518 ciss_requeue_free(cr); 2519} 2520 2521/************************************************************************ 2522 * Allocate a request that will be used to send a BMIC command. Do some 2523 * of the common setup here to avoid duplicating it everywhere else. 2524 */ 2525static int 2526ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2527 int opcode, void **bufp, size_t bufsize) 2528{ 2529 struct ciss_request *cr; 2530 struct ciss_command *cc; 2531 struct ciss_bmic_cdb *cbc; 2532 void *buf; 2533 int error; 2534 int dataout; 2535 2536 debug_called(2); 2537 2538 cr = NULL; 2539 buf = NULL; 2540 2541 /* 2542 * Get a request. 2543 */ 2544 if ((error = ciss_get_request(sc, &cr)) != 0) 2545 goto out; 2546 2547 /* 2548 * Allocate data storage if requested, determine the data direction. 2549 */ 2550 dataout = 0; 2551 if ((bufsize > 0) && (bufp != NULL)) { 2552 if (*bufp == NULL) { 2553 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2554 error = ENOMEM; 2555 goto out; 2556 } 2557 } else { 2558 buf = *bufp; 2559 dataout = 1; /* we are given a buffer, so we are writing */ 2560 } 2561 } 2562 2563 /* 2564 * Build a CISS BMIC command to get the logical drive ID. 2565 */ 2566 cr->cr_data = buf; 2567 cr->cr_length = bufsize; 2568 if (!dataout) 2569 cr->cr_flags = CISS_REQ_DATAIN; 2570 2571 cc = cr->cr_cc; 2572 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2573 cc->header.address.physical.bus = 0; 2574 cc->header.address.physical.target = 0; 2575 cc->cdb.cdb_length = sizeof(*cbc); 2576 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2577 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2578 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2579 cc->cdb.timeout = 0; 2580 2581 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2582 bzero(cbc, sizeof(*cbc)); 2583 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2584 cbc->bmic_opcode = opcode; 2585 cbc->size = htons((u_int16_t)bufsize); 2586 2587out: 2588 if (error) { 2589 if (cr != NULL) 2590 ciss_release_request(cr); 2591 } else { 2592 *crp = cr; 2593 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2594 *bufp = buf; 2595 } 2596 return(error); 2597} 2598 2599/************************************************************************ 2600 * Handle a command passed in from userspace. 2601 */ 2602static int 2603ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2604{ 2605 struct ciss_request *cr; 2606 struct ciss_command *cc; 2607 struct ciss_error_info *ce; 2608 int error = 0; 2609 2610 debug_called(1); 2611 2612 cr = NULL; 2613 2614 /* 2615 * Get a request. 2616 */ 2617 while (ciss_get_request(sc, &cr) != 0) 2618 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2619 cc = cr->cr_cc; 2620 2621 /* 2622 * Allocate an in-kernel databuffer if required, copy in user data. 2623 */ 2624 mtx_unlock(&sc->ciss_mtx); 2625 cr->cr_length = ioc->buf_size; 2626 if (ioc->buf_size > 0) { 2627 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2628 error = ENOMEM; 2629 goto out_unlocked; 2630 } 2631 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2632 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2633 goto out_unlocked; 2634 } 2635 } 2636 2637 /* 2638 * Build the request based on the user command. 2639 */ 2640 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2641 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2642 2643 /* XXX anything else to populate here? */ 2644 mtx_lock(&sc->ciss_mtx); 2645 2646 /* 2647 * Run the command. 2648 */ 2649 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2650 debug(0, "request failed - %d", error); 2651 goto out; 2652 } 2653 2654 /* 2655 * Check to see if the command succeeded. 2656 */ 2657 ce = (struct ciss_error_info *)&(cc->sg[0]); 2658 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2659 bzero(ce, sizeof(*ce)); 2660 2661 /* 2662 * Copy the results back to the user. 2663 */ 2664 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2665 mtx_unlock(&sc->ciss_mtx); 2666 if ((ioc->buf_size > 0) && 2667 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2668 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2669 goto out_unlocked; 2670 } 2671 2672 /* done OK */ 2673 error = 0; 2674 2675out_unlocked: 2676 mtx_lock(&sc->ciss_mtx); 2677 2678out: 2679 if ((cr != NULL) && (cr->cr_data != NULL)) 2680 free(cr->cr_data, CISS_MALLOC_CLASS); 2681 if (cr != NULL) 2682 ciss_release_request(cr); 2683 return(error); 2684} 2685 2686/************************************************************************ 2687 * Map a request into bus-visible space, initialise the scatter/gather 2688 * list. 2689 */ 2690static int 2691ciss_map_request(struct ciss_request *cr) 2692{ 2693 struct ciss_softc *sc; 2694 int error = 0; 2695 2696 debug_called(2); 2697 2698 sc = cr->cr_sc; 2699 2700 /* check that mapping is necessary */ 2701 if (cr->cr_flags & CISS_REQ_MAPPED) 2702 return(0); 2703 2704 cr->cr_flags |= CISS_REQ_MAPPED; 2705 2706 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2707 BUS_DMASYNC_PREWRITE); 2708 2709 if (cr->cr_data != NULL) { 2710 if (cr->cr_flags & CISS_REQ_CCB) 2711 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2712 cr->cr_datamap, cr->cr_data, 2713 ciss_request_map_helper, cr, 0); 2714 else 2715 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2716 cr->cr_data, cr->cr_length, 2717 ciss_request_map_helper, cr, 0); 2718 if (error != 0) 2719 return (error); 2720 } else { 2721 /* 2722 * Post the command to the adapter. 2723 */ 2724 cr->cr_sg_tag = CISS_SG_NONE; 2725 cr->cr_flags |= CISS_REQ_BUSY; 2726 if (sc->ciss_perf) 2727 CISS_TL_PERF_POST_CMD(sc, cr); 2728 else 2729 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2730 } 2731 2732 return(0); 2733} 2734 2735static void 2736ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2737{ 2738 struct ciss_command *cc; 2739 struct ciss_request *cr; 2740 struct ciss_softc *sc; 2741 int i; 2742 2743 debug_called(2); 2744 2745 cr = (struct ciss_request *)arg; 2746 sc = cr->cr_sc; 2747 cc = cr->cr_cc; 2748 2749 for (i = 0; i < nseg; i++) { 2750 cc->sg[i].address = segs[i].ds_addr; 2751 cc->sg[i].length = segs[i].ds_len; 2752 cc->sg[i].extension = 0; 2753 } 2754 /* we leave the s/g table entirely within the command */ 2755 cc->header.sg_in_list = nseg; 2756 cc->header.sg_total = nseg; 2757 2758 if (cr->cr_flags & CISS_REQ_DATAIN) 2759 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2760 if (cr->cr_flags & CISS_REQ_DATAOUT) 2761 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2762 2763 if (nseg == 0) 2764 cr->cr_sg_tag = CISS_SG_NONE; 2765 else if (nseg == 1) 2766 cr->cr_sg_tag = CISS_SG_1; 2767 else if (nseg == 2) 2768 cr->cr_sg_tag = CISS_SG_2; 2769 else if (nseg <= 4) 2770 cr->cr_sg_tag = CISS_SG_4; 2771 else if (nseg <= 8) 2772 cr->cr_sg_tag = CISS_SG_8; 2773 else if (nseg <= 16) 2774 cr->cr_sg_tag = CISS_SG_16; 2775 else if (nseg <= 32) 2776 cr->cr_sg_tag = CISS_SG_32; 2777 else 2778 cr->cr_sg_tag = CISS_SG_MAX; 2779 2780 /* 2781 * Post the command to the adapter. 2782 */ 2783 cr->cr_flags |= CISS_REQ_BUSY; 2784 if (sc->ciss_perf) 2785 CISS_TL_PERF_POST_CMD(sc, cr); 2786 else 2787 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2788} 2789 2790/************************************************************************ 2791 * Unmap a request from bus-visible space. 2792 */ 2793static void 2794ciss_unmap_request(struct ciss_request *cr) 2795{ 2796 struct ciss_softc *sc; 2797 2798 debug_called(2); 2799 2800 sc = cr->cr_sc; 2801 2802 /* check that unmapping is necessary */ 2803 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2804 return; 2805 2806 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2807 BUS_DMASYNC_POSTWRITE); 2808 2809 if (cr->cr_data == NULL) 2810 goto out; 2811 2812 if (cr->cr_flags & CISS_REQ_DATAIN) 2813 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2814 if (cr->cr_flags & CISS_REQ_DATAOUT) 2815 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2816 2817 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2818out: 2819 cr->cr_flags &= ~CISS_REQ_MAPPED; 2820} 2821 2822/************************************************************************ 2823 * Attach the driver to CAM. 2824 * 2825 * We put all the logical drives on a single SCSI bus. 2826 */ 2827static int 2828ciss_cam_init(struct ciss_softc *sc) 2829{ 2830 int i, maxbus; 2831 2832 debug_called(1); 2833 2834 /* 2835 * Allocate a devq. We can reuse this for the masked physical 2836 * devices if we decide to export these as well. 2837 */ 2838 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2839 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2840 return(ENOMEM); 2841 } 2842 2843 /* 2844 * Create a SIM. 2845 * 2846 * This naturally wastes a bit of memory. The alternative is to allocate 2847 * and register each bus as it is found, and then track them on a linked 2848 * list. Unfortunately, the driver has a few places where it needs to 2849 * look up the SIM based solely on bus number, and it's unclear whether 2850 * a list traversal would work for these situations. 2851 */ 2852 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2853 CISS_PHYSICAL_BASE); 2854 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2855 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2856 if (sc->ciss_cam_sim == NULL) { 2857 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2858 return(ENOMEM); 2859 } 2860 2861 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2862 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2863 "ciss", sc, 2864 device_get_unit(sc->ciss_dev), 2865 &sc->ciss_mtx, 2866 2, 2867 sc->ciss_max_requests - 2, 2868 sc->ciss_cam_devq)) == NULL) { 2869 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2870 return(ENOMEM); 2871 } 2872 2873 /* 2874 * Register bus with this SIM. 2875 */ 2876 mtx_lock(&sc->ciss_mtx); 2877 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2878 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2879 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2880 mtx_unlock(&sc->ciss_mtx); 2881 return (ENXIO); 2882 } 2883 } 2884 mtx_unlock(&sc->ciss_mtx); 2885 } 2886 2887 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2888 CISS_PHYSICAL_BASE; i++) { 2889 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2890 "ciss", sc, 2891 device_get_unit(sc->ciss_dev), 2892 &sc->ciss_mtx, 1, 2893 sc->ciss_max_requests - 2, 2894 sc->ciss_cam_devq)) == NULL) { 2895 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2896 return (ENOMEM); 2897 } 2898 2899 mtx_lock(&sc->ciss_mtx); 2900 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2901 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2902 mtx_unlock(&sc->ciss_mtx); 2903 return (ENXIO); 2904 } 2905 mtx_unlock(&sc->ciss_mtx); 2906 } 2907 2908 return(0); 2909} 2910 2911/************************************************************************ 2912 * Initiate a rescan of the 'logical devices' SIM 2913 */ 2914static void 2915ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2916{ 2917 union ccb *ccb; 2918 2919 debug_called(1); 2920 2921 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2922 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2923 return; 2924 } 2925 2926 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2927 cam_sim_path(sc->ciss_cam_sim[bus]), 2928 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2929 ciss_printf(sc, "rescan failed (can't create path)\n"); 2930 xpt_free_ccb(ccb); 2931 return; 2932 } 2933 xpt_rescan(ccb); 2934 /* scan is now in progress */ 2935} 2936 2937/************************************************************************ 2938 * Handle requests coming from CAM 2939 */ 2940static void 2941ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2942{ 2943 struct ciss_softc *sc; 2944 struct ccb_scsiio *csio; 2945 int bus, target; 2946 int physical; 2947 2948 sc = cam_sim_softc(sim); 2949 bus = cam_sim_bus(sim); 2950 csio = (struct ccb_scsiio *)&ccb->csio; 2951 target = csio->ccb_h.target_id; 2952 physical = CISS_IS_PHYSICAL(bus); 2953 2954 switch (ccb->ccb_h.func_code) { 2955 2956 /* perform SCSI I/O */ 2957 case XPT_SCSI_IO: 2958 if (!ciss_cam_action_io(sim, csio)) 2959 return; 2960 break; 2961 2962 /* perform geometry calculations */ 2963 case XPT_CALC_GEOMETRY: 2964 { 2965 struct ccb_calc_geometry *ccg = &ccb->ccg; 2966 struct ciss_ldrive *ld; 2967 2968 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2969 2970 ld = NULL; 2971 if (!physical) 2972 ld = &sc->ciss_logical[bus][target]; 2973 2974 /* 2975 * Use the cached geometry settings unless the fault tolerance 2976 * is invalid. 2977 */ 2978 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2979 u_int32_t secs_per_cylinder; 2980 2981 ccg->heads = 255; 2982 ccg->secs_per_track = 32; 2983 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2984 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2985 } else { 2986 ccg->heads = ld->cl_geometry.heads; 2987 ccg->secs_per_track = ld->cl_geometry.sectors; 2988 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2989 } 2990 ccb->ccb_h.status = CAM_REQ_CMP; 2991 break; 2992 } 2993 2994 /* handle path attribute inquiry */ 2995 case XPT_PATH_INQ: 2996 { 2997 struct ccb_pathinq *cpi = &ccb->cpi; 2998 int sg_length; 2999 3000 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3001 3002 cpi->version_num = 1; 3003 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3004 cpi->target_sprt = 0; 3005 cpi->hba_misc = 0; 3006 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3007 cpi->max_lun = 0; /* 'logical drive' channel only */ 3008 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3009 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3010 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3011 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3012 cpi->unit_number = cam_sim_unit(sim); 3013 cpi->bus_id = cam_sim_bus(sim); 3014 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3015 cpi->transport = XPORT_SPI; 3016 cpi->transport_version = 2; 3017 cpi->protocol = PROTO_SCSI; 3018 cpi->protocol_version = SCSI_REV_2; 3019 if (sc->ciss_cfg->max_sg_length == 0) { 3020 sg_length = 17; 3021 } else { 3022 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3023 * Confusing bit here. max_sg_length is usually a power of 2. We always 3024 * need to subtract 1 to account for partial pages. Then we need to 3025 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3026 * Add 1 so we can then subtract it out in the assignment to maxio. 3027 * The reason for all these shenanigans is to create a maxio value that 3028 * creates IO operations to volumes that yield consistent operations 3029 * with good performance. 3030 */ 3031 sg_length = sc->ciss_cfg->max_sg_length - 1; 3032 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3033 } 3034 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3035 ccb->ccb_h.status = CAM_REQ_CMP; 3036 break; 3037 } 3038 3039 case XPT_GET_TRAN_SETTINGS: 3040 { 3041 struct ccb_trans_settings *cts = &ccb->cts; 3042 int bus, target; 3043 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3044 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3045 3046 bus = cam_sim_bus(sim); 3047 target = cts->ccb_h.target_id; 3048 3049 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3050 /* disconnect always OK */ 3051 cts->protocol = PROTO_SCSI; 3052 cts->protocol_version = SCSI_REV_2; 3053 cts->transport = XPORT_SPI; 3054 cts->transport_version = 2; 3055 3056 spi->valid = CTS_SPI_VALID_DISC; 3057 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3058 3059 scsi->valid = CTS_SCSI_VALID_TQ; 3060 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3061 3062 cts->ccb_h.status = CAM_REQ_CMP; 3063 break; 3064 } 3065 3066 default: /* we can't do this */ 3067 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3068 ccb->ccb_h.status = CAM_REQ_INVALID; 3069 break; 3070 } 3071 3072 xpt_done(ccb); 3073} 3074 3075/************************************************************************ 3076 * Handle a CAM SCSI I/O request. 3077 */ 3078static int 3079ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3080{ 3081 struct ciss_softc *sc; 3082 int bus, target; 3083 struct ciss_request *cr; 3084 struct ciss_command *cc; 3085 int error; 3086 3087 sc = cam_sim_softc(sim); 3088 bus = cam_sim_bus(sim); 3089 target = csio->ccb_h.target_id; 3090 3091 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3092 3093 /* check that the CDB pointer is not to a physical address */ 3094 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3095 debug(3, " CDB pointer is to physical address"); 3096 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3097 } 3098 3099 /* abandon aborted ccbs or those that have failed validation */ 3100 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3101 debug(3, "abandoning CCB due to abort/validation failure"); 3102 return(EINVAL); 3103 } 3104 3105 /* handle emulation of some SCSI commands ourself */ 3106 if (ciss_cam_emulate(sc, csio)) 3107 return(0); 3108 3109 /* 3110 * Get a request to manage this command. If we can't, return the 3111 * ccb, freeze the queue and flag so that we unfreeze it when a 3112 * request completes. 3113 */ 3114 if ((error = ciss_get_request(sc, &cr)) != 0) { 3115 xpt_freeze_simq(sim, 1); 3116 sc->ciss_flags |= CISS_FLAG_BUSY; 3117 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3118 return(error); 3119 } 3120 3121 /* 3122 * Build the command. 3123 */ 3124 cc = cr->cr_cc; 3125 cr->cr_data = csio; 3126 cr->cr_length = csio->dxfer_len; 3127 cr->cr_complete = ciss_cam_complete; 3128 cr->cr_private = csio; 3129 3130 /* 3131 * Target the right logical volume. 3132 */ 3133 if (CISS_IS_PHYSICAL(bus)) 3134 cc->header.address = 3135 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3136 else 3137 cc->header.address = 3138 sc->ciss_logical[bus][target].cl_address; 3139 cc->cdb.cdb_length = csio->cdb_len; 3140 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3141 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3142 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3143 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3144 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3145 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3146 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3147 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3148 } else { 3149 cr->cr_data = NULL; 3150 cr->cr_flags = 0; 3151 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3152 } 3153 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3154 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3155 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3156 } else { 3157 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3158 } 3159 3160 /* 3161 * Submit the request to the adapter. 3162 * 3163 * Note that this may fail if we're unable to map the request (and 3164 * if we ever learn a transport layer other than simple, may fail 3165 * if the adapter rejects the command). 3166 */ 3167 if ((error = ciss_start(cr)) != 0) { 3168 xpt_freeze_simq(sim, 1); 3169 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3170 if (error == EINPROGRESS) { 3171 error = 0; 3172 } else { 3173 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3174 ciss_release_request(cr); 3175 } 3176 return(error); 3177 } 3178 3179 return(0); 3180} 3181 3182/************************************************************************ 3183 * Emulate SCSI commands the adapter doesn't handle as we might like. 3184 */ 3185static int 3186ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3187{ 3188 int bus, target; 3189 u_int8_t opcode; 3190 3191 target = csio->ccb_h.target_id; 3192 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3193 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3194 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3195 3196 if (CISS_IS_PHYSICAL(bus)) { 3197 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3198 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3199 xpt_done((union ccb *)csio); 3200 return(1); 3201 } else 3202 return(0); 3203 } 3204 3205 /* 3206 * Handle requests for volumes that don't exist or are not online. 3207 * A selection timeout is slightly better than an illegal request. 3208 * Other errors might be better. 3209 */ 3210 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3211 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3212 xpt_done((union ccb *)csio); 3213 return(1); 3214 } 3215 3216 /* if we have to fake Synchronise Cache */ 3217 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3218 /* 3219 * If this is a Synchronise Cache command, typically issued when 3220 * a device is closed, flush the adapter and complete now. 3221 */ 3222 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3223 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3224 ciss_flush_adapter(sc); 3225 csio->ccb_h.status |= CAM_REQ_CMP; 3226 xpt_done((union ccb *)csio); 3227 return(1); 3228 } 3229 } 3230 3231 /* 3232 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3233 * at least one LUN field to be pre created for us, so snag it and fill in 3234 * the least significant byte indicating 1 LUN here. Emulate the command 3235 * return to shut up warning on console of a CDB error. swb 3236 */ 3237 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3238 csio->data_ptr[3] = 8; 3239 csio->ccb_h.status |= CAM_REQ_CMP; 3240 xpt_done((union ccb *)csio); 3241 return(1); 3242 } 3243 3244 return(0); 3245} 3246 3247/************************************************************************ 3248 * Check for possibly-completed commands. 3249 */ 3250static void 3251ciss_cam_poll(struct cam_sim *sim) 3252{ 3253 cr_qhead_t qh; 3254 struct ciss_softc *sc = cam_sim_softc(sim); 3255 3256 debug_called(2); 3257 3258 STAILQ_INIT(&qh); 3259 if (sc->ciss_perf) 3260 ciss_perf_done(sc, &qh); 3261 else 3262 ciss_done(sc, &qh); 3263 ciss_complete(sc, &qh); 3264} 3265 3266/************************************************************************ 3267 * Handle completion of a command - pass results back through the CCB 3268 */ 3269static void 3270ciss_cam_complete(struct ciss_request *cr) 3271{ 3272 struct ciss_softc *sc; 3273 struct ciss_command *cc; 3274 struct ciss_error_info *ce; 3275 struct ccb_scsiio *csio; 3276 int scsi_status; 3277 int command_status; 3278 3279 debug_called(2); 3280 3281 sc = cr->cr_sc; 3282 cc = cr->cr_cc; 3283 ce = (struct ciss_error_info *)&(cc->sg[0]); 3284 csio = (struct ccb_scsiio *)cr->cr_private; 3285 3286 /* 3287 * Extract status values from request. 3288 */ 3289 ciss_report_request(cr, &command_status, &scsi_status); 3290 csio->scsi_status = scsi_status; 3291 3292 /* 3293 * Handle specific SCSI status values. 3294 */ 3295 switch(scsi_status) { 3296 /* no status due to adapter error */ 3297 case -1: 3298 debug(0, "adapter error"); 3299 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3300 break; 3301 3302 /* no status due to command completed OK */ 3303 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3304 debug(2, "SCSI_STATUS_OK"); 3305 csio->ccb_h.status |= CAM_REQ_CMP; 3306 break; 3307 3308 /* check condition, sense data included */ 3309 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3310 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3311 ce->sense_length, ce->residual_count); 3312 bzero(&csio->sense_data, SSD_FULL_SIZE); 3313 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3314 if (csio->sense_len > ce->sense_length) 3315 csio->sense_resid = csio->sense_len - ce->sense_length; 3316 else 3317 csio->sense_resid = 0; 3318 csio->resid = ce->residual_count; 3319 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3320#ifdef CISS_DEBUG 3321 { 3322 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3323 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3324 csio->sense_resid, /*show_errors*/ 1)); 3325 } 3326#endif 3327 break; 3328 3329 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3330 debug(0, "SCSI_STATUS_BUSY"); 3331 csio->ccb_h.status |= CAM_SCSI_BUSY; 3332 break; 3333 3334 default: 3335 debug(0, "unknown status 0x%x", csio->scsi_status); 3336 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3337 break; 3338 } 3339 3340 /* handle post-command fixup */ 3341 ciss_cam_complete_fixup(sc, csio); 3342 3343 ciss_release_request(cr); 3344 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3345 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3346 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3347 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3348 else 3349 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3350 } 3351 xpt_done((union ccb *)csio); 3352} 3353 3354/******************************************************************************** 3355 * Fix up the result of some commands here. 3356 */ 3357static void 3358ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3359{ 3360 struct scsi_inquiry_data *inq; 3361 struct ciss_ldrive *cl; 3362 uint8_t *cdb; 3363 int bus, target; 3364 3365 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3366 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3367 if (cdb[0] == INQUIRY && 3368 (cdb[1] & SI_EVPD) == 0 && 3369 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3370 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3371 3372 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3373 target = csio->ccb_h.target_id; 3374 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3375 3376 /* 3377 * Don't let hard drives be seen by the DA driver. They will still be 3378 * attached by the PASS driver. 3379 */ 3380 if (CISS_IS_PHYSICAL(bus)) { 3381 if (SID_TYPE(inq) == T_DIRECT) 3382 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3383 return; 3384 } 3385 3386 cl = &sc->ciss_logical[bus][target]; 3387 3388 padstr(inq->vendor, "HP", 3389 SID_VENDOR_SIZE); 3390 padstr(inq->product, 3391 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3392 SID_PRODUCT_SIZE); 3393 padstr(inq->revision, 3394 ciss_name_ldrive_status(cl->cl_lstatus->status), 3395 SID_REVISION_SIZE); 3396 } 3397} 3398 3399 3400/******************************************************************************** 3401 * Find a peripheral attached at (target) 3402 */ 3403static struct cam_periph * 3404ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3405{ 3406 struct cam_periph *periph; 3407 struct cam_path *path; 3408 int status; 3409 3410 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3411 target, 0); 3412 if (status == CAM_REQ_CMP) { 3413 periph = cam_periph_find(path, NULL); 3414 xpt_free_path(path); 3415 } else { 3416 periph = NULL; 3417 } 3418 return(periph); 3419} 3420 3421/******************************************************************************** 3422 * Name the device at (target) 3423 * 3424 * XXX is this strictly correct? 3425 */ 3426static int 3427ciss_name_device(struct ciss_softc *sc, int bus, int target) 3428{ 3429 struct cam_periph *periph; 3430 3431 if (CISS_IS_PHYSICAL(bus)) 3432 return (0); 3433 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3434 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3435 periph->periph_name, periph->unit_number); 3436 return(0); 3437 } 3438 sc->ciss_logical[bus][target].cl_name[0] = 0; 3439 return(ENOENT); 3440} 3441 3442/************************************************************************ 3443 * Periodic status monitoring. 3444 */ 3445static void 3446ciss_periodic(void *arg) 3447{ 3448 struct ciss_softc *sc; 3449 struct ciss_request *cr = NULL; 3450 struct ciss_command *cc = NULL; 3451 int error = 0; 3452 3453 debug_called(1); 3454 3455 sc = (struct ciss_softc *)arg; 3456 3457 /* 3458 * Check the adapter heartbeat. 3459 */ 3460 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3461 sc->ciss_heart_attack++; 3462 debug(0, "adapter heart attack in progress 0x%x/%d", 3463 sc->ciss_heartbeat, sc->ciss_heart_attack); 3464 if (sc->ciss_heart_attack == 3) { 3465 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3466 ciss_disable_adapter(sc); 3467 return; 3468 } 3469 } else { 3470 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3471 sc->ciss_heart_attack = 0; 3472 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3473 } 3474 3475 /* 3476 * Send the NOP message and wait for a response. 3477 */ 3478 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3479 cc = cr->cr_cc; 3480 cr->cr_complete = ciss_nop_complete; 3481 cc->cdb.cdb_length = 1; 3482 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3483 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3484 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3485 cc->cdb.timeout = 0; 3486 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3487 3488 if ((error = ciss_start(cr)) != 0) { 3489 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3490 } 3491 } 3492 3493 /* 3494 * If the notify event request has died for some reason, or has 3495 * not started yet, restart it. 3496 */ 3497 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3498 debug(0, "(re)starting Event Notify chain"); 3499 ciss_notify_event(sc); 3500 } 3501 3502 /* 3503 * Reschedule. 3504 */ 3505 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3506} 3507 3508static void 3509ciss_nop_complete(struct ciss_request *cr) 3510{ 3511 struct ciss_softc *sc; 3512 static int first_time = 1; 3513 3514 sc = cr->cr_sc; 3515 if (ciss_report_request(cr, NULL, NULL) != 0) { 3516 if (first_time == 1) { 3517 first_time = 0; 3518 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3519 } 3520 } 3521 3522 ciss_release_request(cr); 3523} 3524 3525/************************************************************************ 3526 * Disable the adapter. 3527 * 3528 * The all requests in completed queue is failed with hardware error. 3529 * This will cause failover in a multipath configuration. 3530 */ 3531static void 3532ciss_disable_adapter(struct ciss_softc *sc) 3533{ 3534 cr_qhead_t qh; 3535 struct ciss_request *cr; 3536 struct ciss_command *cc; 3537 struct ciss_error_info *ce; 3538 int i; 3539 3540 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3541 pci_disable_busmaster(sc->ciss_dev); 3542 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3543 3544 for (i = 1; i < sc->ciss_max_requests; i++) { 3545 cr = &sc->ciss_request[i]; 3546 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3547 continue; 3548 3549 cc = cr->cr_cc; 3550 ce = (struct ciss_error_info *)&(cc->sg[0]); 3551 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3552 ciss_enqueue_complete(cr, &qh); 3553 } 3554 3555 for (;;) { 3556 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3557 break; 3558 3559 /* 3560 * If the request has a callback, invoke it. 3561 */ 3562 if (cr->cr_complete != NULL) { 3563 cr->cr_complete(cr); 3564 continue; 3565 } 3566 3567 /* 3568 * If someone is sleeping on this request, wake them up. 3569 */ 3570 if (cr->cr_flags & CISS_REQ_SLEEP) { 3571 cr->cr_flags &= ~CISS_REQ_SLEEP; 3572 wakeup(cr); 3573 continue; 3574 } 3575 } 3576} 3577 3578/************************************************************************ 3579 * Request a notification response from the adapter. 3580 * 3581 * If (cr) is NULL, this is the first request of the adapter, so 3582 * reset the adapter's message pointer and start with the oldest 3583 * message available. 3584 */ 3585static void 3586ciss_notify_event(struct ciss_softc *sc) 3587{ 3588 struct ciss_request *cr; 3589 struct ciss_command *cc; 3590 struct ciss_notify_cdb *cnc; 3591 int error; 3592 3593 debug_called(1); 3594 3595 cr = sc->ciss_periodic_notify; 3596 3597 /* get a request if we don't already have one */ 3598 if (cr == NULL) { 3599 if ((error = ciss_get_request(sc, &cr)) != 0) { 3600 debug(0, "can't get notify event request"); 3601 goto out; 3602 } 3603 sc->ciss_periodic_notify = cr; 3604 cr->cr_complete = ciss_notify_complete; 3605 debug(1, "acquired request %d", cr->cr_tag); 3606 } 3607 3608 /* 3609 * Get a databuffer if we don't already have one, note that the 3610 * adapter command wants a larger buffer than the actual 3611 * structure. 3612 */ 3613 if (cr->cr_data == NULL) { 3614 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3615 debug(0, "can't get notify event request buffer"); 3616 error = ENOMEM; 3617 goto out; 3618 } 3619 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3620 } 3621 3622 /* re-setup the request's command (since we never release it) XXX overkill*/ 3623 ciss_preen_command(cr); 3624 3625 /* (re)build the notify event command */ 3626 cc = cr->cr_cc; 3627 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3628 cc->header.address.physical.bus = 0; 3629 cc->header.address.physical.target = 0; 3630 3631 cc->cdb.cdb_length = sizeof(*cnc); 3632 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3633 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3634 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3635 cc->cdb.timeout = 0; /* no timeout, we hope */ 3636 3637 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3638 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3639 cnc->opcode = CISS_OPCODE_READ; 3640 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3641 cnc->timeout = 0; /* no timeout, we hope */ 3642 cnc->synchronous = 0; 3643 cnc->ordered = 0; 3644 cnc->seek_to_oldest = 0; 3645 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3646 cnc->new_only = 1; 3647 else 3648 cnc->new_only = 0; 3649 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3650 3651 /* submit the request */ 3652 error = ciss_start(cr); 3653 3654 out: 3655 if (error) { 3656 if (cr != NULL) { 3657 if (cr->cr_data != NULL) 3658 free(cr->cr_data, CISS_MALLOC_CLASS); 3659 ciss_release_request(cr); 3660 } 3661 sc->ciss_periodic_notify = NULL; 3662 debug(0, "can't submit notify event request"); 3663 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3664 } else { 3665 debug(1, "notify event submitted"); 3666 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3667 } 3668} 3669 3670static void 3671ciss_notify_complete(struct ciss_request *cr) 3672{ 3673 struct ciss_command *cc; 3674 struct ciss_notify *cn; 3675 struct ciss_softc *sc; 3676 int scsi_status; 3677 int command_status; 3678 debug_called(1); 3679 3680 cc = cr->cr_cc; 3681 cn = (struct ciss_notify *)cr->cr_data; 3682 sc = cr->cr_sc; 3683 3684 /* 3685 * Report request results, decode status. 3686 */ 3687 ciss_report_request(cr, &command_status, &scsi_status); 3688 3689 /* 3690 * Abort the chain on a fatal error. 3691 * 3692 * XXX which of these are actually errors? 3693 */ 3694 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3695 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3696 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3697 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3698 ciss_name_command_status(command_status)); 3699 ciss_release_request(cr); 3700 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3701 return; 3702 } 3703 3704 /* 3705 * If the adapter gave us a text message, print it. 3706 */ 3707 if (cn->message[0] != 0) 3708 ciss_printf(sc, "*** %.80s\n", cn->message); 3709 3710 debug(0, "notify event class %d subclass %d detail %d", 3711 cn->class, cn->subclass, cn->detail); 3712 3713 /* 3714 * If the response indicates that the notifier has been aborted, 3715 * release the notifier command. 3716 */ 3717 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3718 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3719 (cn->detail == 1)) { 3720 debug(0, "notifier exiting"); 3721 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3722 ciss_release_request(cr); 3723 sc->ciss_periodic_notify = NULL; 3724 wakeup(&sc->ciss_periodic_notify); 3725 } else { 3726 /* Handle notify events in a kernel thread */ 3727 ciss_enqueue_notify(cr); 3728 sc->ciss_periodic_notify = NULL; 3729 wakeup(&sc->ciss_periodic_notify); 3730 wakeup(&sc->ciss_notify); 3731 } 3732 /* 3733 * Send a new notify event command, if we're not aborting. 3734 */ 3735 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3736 ciss_notify_event(sc); 3737 } 3738} 3739 3740/************************************************************************ 3741 * Abort the Notify Event chain. 3742 * 3743 * Note that we can't just abort the command in progress; we have to 3744 * explicitly issue an Abort Notify Event command in order for the 3745 * adapter to clean up correctly. 3746 * 3747 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3748 * the chain will not restart itself. 3749 */ 3750static int 3751ciss_notify_abort(struct ciss_softc *sc) 3752{ 3753 struct ciss_request *cr; 3754 struct ciss_command *cc; 3755 struct ciss_notify_cdb *cnc; 3756 int error, command_status, scsi_status; 3757 3758 debug_called(1); 3759 3760 cr = NULL; 3761 error = 0; 3762 3763 /* verify that there's an outstanding command */ 3764 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3765 goto out; 3766 3767 /* get a command to issue the abort with */ 3768 if ((error = ciss_get_request(sc, &cr))) 3769 goto out; 3770 3771 /* get a buffer for the result */ 3772 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3773 debug(0, "can't get notify event request buffer"); 3774 error = ENOMEM; 3775 goto out; 3776 } 3777 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3778 3779 /* build the CDB */ 3780 cc = cr->cr_cc; 3781 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3782 cc->header.address.physical.bus = 0; 3783 cc->header.address.physical.target = 0; 3784 cc->cdb.cdb_length = sizeof(*cnc); 3785 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3786 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3787 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3788 cc->cdb.timeout = 0; /* no timeout, we hope */ 3789 3790 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3791 bzero(cnc, sizeof(*cnc)); 3792 cnc->opcode = CISS_OPCODE_WRITE; 3793 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3794 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3795 3796 ciss_print_request(cr); 3797 3798 /* 3799 * Submit the request and wait for it to complete. 3800 */ 3801 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3802 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3803 goto out; 3804 } 3805 3806 /* 3807 * Check response. 3808 */ 3809 ciss_report_request(cr, &command_status, &scsi_status); 3810 switch(command_status) { 3811 case CISS_CMD_STATUS_SUCCESS: 3812 break; 3813 case CISS_CMD_STATUS_INVALID_COMMAND: 3814 /* 3815 * Some older adapters don't support the CISS version of this 3816 * command. Fall back to using the BMIC version. 3817 */ 3818 error = ciss_notify_abort_bmic(sc); 3819 if (error != 0) 3820 goto out; 3821 break; 3822 3823 case CISS_CMD_STATUS_TARGET_STATUS: 3824 /* 3825 * This can happen if the adapter thinks there wasn't an outstanding 3826 * Notify Event command but we did. We clean up here. 3827 */ 3828 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3829 if (sc->ciss_periodic_notify != NULL) 3830 ciss_release_request(sc->ciss_periodic_notify); 3831 error = 0; 3832 goto out; 3833 } 3834 /* FALLTHROUGH */ 3835 3836 default: 3837 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3838 ciss_name_command_status(command_status)); 3839 error = EIO; 3840 goto out; 3841 } 3842 3843 /* 3844 * Sleep waiting for the notifier command to complete. Note 3845 * that if it doesn't, we may end up in a bad situation, since 3846 * the adapter may deliver it later. Also note that the adapter 3847 * requires the Notify Event command to be cancelled in order to 3848 * maintain internal bookkeeping. 3849 */ 3850 while (sc->ciss_periodic_notify != NULL) { 3851 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3852 if (error == EWOULDBLOCK) { 3853 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3854 break; 3855 } 3856 } 3857 3858 out: 3859 /* release the cancel request */ 3860 if (cr != NULL) { 3861 if (cr->cr_data != NULL) 3862 free(cr->cr_data, CISS_MALLOC_CLASS); 3863 ciss_release_request(cr); 3864 } 3865 if (error == 0) 3866 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3867 return(error); 3868} 3869 3870/************************************************************************ 3871 * Abort the Notify Event chain using a BMIC command. 3872 */ 3873static int 3874ciss_notify_abort_bmic(struct ciss_softc *sc) 3875{ 3876 struct ciss_request *cr; 3877 int error, command_status; 3878 3879 debug_called(1); 3880 3881 cr = NULL; 3882 error = 0; 3883 3884 /* verify that there's an outstanding command */ 3885 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3886 goto out; 3887 3888 /* 3889 * Build a BMIC command to cancel the Notify on Event command. 3890 * 3891 * Note that we are sending a CISS opcode here. Odd. 3892 */ 3893 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3894 NULL, 0)) != 0) 3895 goto out; 3896 3897 /* 3898 * Submit the request and wait for it to complete. 3899 */ 3900 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3901 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3902 goto out; 3903 } 3904 3905 /* 3906 * Check response. 3907 */ 3908 ciss_report_request(cr, &command_status, NULL); 3909 switch(command_status) { 3910 case CISS_CMD_STATUS_SUCCESS: 3911 break; 3912 default: 3913 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3914 ciss_name_command_status(command_status)); 3915 error = EIO; 3916 goto out; 3917 } 3918 3919out: 3920 if (cr != NULL) 3921 ciss_release_request(cr); 3922 return(error); 3923} 3924 3925/************************************************************************ 3926 * Handle rescanning all the logical volumes when a notify event 3927 * causes the drives to come online or offline. 3928 */ 3929static void 3930ciss_notify_rescan_logical(struct ciss_softc *sc) 3931{ 3932 struct ciss_lun_report *cll; 3933 struct ciss_ldrive *ld; 3934 int i, j, ndrives; 3935 3936 /* 3937 * We must rescan all logical volumes to get the right logical 3938 * drive address. 3939 */ 3940 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3941 sc->ciss_cfg->max_logical_supported); 3942 if (cll == NULL) 3943 return; 3944 3945 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3946 3947 /* 3948 * Delete any of the drives which were destroyed by the 3949 * firmware. 3950 */ 3951 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3952 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3953 ld = &sc->ciss_logical[i][j]; 3954 3955 if (ld->cl_update == 0) 3956 continue; 3957 3958 if (ld->cl_status != CISS_LD_ONLINE) { 3959 ciss_cam_rescan_target(sc, i, j); 3960 ld->cl_update = 0; 3961 if (ld->cl_ldrive) 3962 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3963 if (ld->cl_lstatus) 3964 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3965 3966 ld->cl_ldrive = NULL; 3967 ld->cl_lstatus = NULL; 3968 } 3969 } 3970 } 3971 3972 /* 3973 * Scan for new drives. 3974 */ 3975 for (i = 0; i < ndrives; i++) { 3976 int bus, target; 3977 3978 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3979 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3980 ld = &sc->ciss_logical[bus][target]; 3981 3982 if (ld->cl_update == 0) 3983 continue; 3984 3985 ld->cl_update = 0; 3986 ld->cl_address = cll->lun[i]; 3987 ld->cl_controller = &sc->ciss_controllers[bus]; 3988 if (ciss_identify_logical(sc, ld) == 0) { 3989 ciss_cam_rescan_target(sc, bus, target); 3990 } 3991 } 3992 free(cll, CISS_MALLOC_CLASS); 3993} 3994 3995/************************************************************************ 3996 * Handle a notify event relating to the status of a logical drive. 3997 * 3998 * XXX need to be able to defer some of these to properly handle 3999 * calling the "ID Physical drive" command, unless the 'extended' 4000 * drive IDs are always in BIG_MAP format. 4001 */ 4002static void 4003ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4004{ 4005 struct ciss_ldrive *ld; 4006 int bus, target; 4007 int rescan_ld; 4008 4009 debug_called(2); 4010 4011 bus = cn->device.physical.bus; 4012 target = cn->data.logical_status.logical_drive; 4013 ld = &sc->ciss_logical[bus][target]; 4014 4015 switch (cn->subclass) { 4016 case CISS_NOTIFY_LOGICAL_STATUS: 4017 switch (cn->detail) { 4018 case 0: 4019 ciss_name_device(sc, bus, target); 4020 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4021 cn->data.logical_status.logical_drive, ld->cl_name, 4022 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4023 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4024 cn->data.logical_status.spare_state, 4025 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4026 4027 /* 4028 * Update our idea of the drive's status. 4029 */ 4030 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4031 if (ld->cl_lstatus != NULL) 4032 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4033 4034 /* 4035 * Have CAM rescan the drive if its status has changed. 4036 */ 4037 rescan_ld = (cn->data.logical_status.previous_state != 4038 cn->data.logical_status.new_state) ? 1 : 0; 4039 if (rescan_ld) { 4040 ld->cl_update = 1; 4041 ciss_notify_rescan_logical(sc); 4042 } 4043 4044 break; 4045 4046 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4047 ciss_name_device(sc, bus, target); 4048 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4049 cn->data.logical_status.logical_drive, ld->cl_name); 4050 ciss_accept_media(sc, ld); 4051 4052 ld->cl_update = 1; 4053 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4054 ciss_notify_rescan_logical(sc); 4055 break; 4056 4057 case 2: 4058 case 3: 4059 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4060 cn->data.rebuild_aborted.logical_drive, 4061 ld->cl_name, 4062 (cn->detail == 2) ? "read" : "write"); 4063 break; 4064 } 4065 break; 4066 4067 case CISS_NOTIFY_LOGICAL_ERROR: 4068 if (cn->detail == 0) { 4069 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4070 cn->data.io_error.logical_drive, 4071 ld->cl_name, 4072 cn->data.io_error.failure_bus, 4073 cn->data.io_error.failure_drive); 4074 /* XXX should we take the drive down at this point, or will we be told? */ 4075 } 4076 break; 4077 4078 case CISS_NOTIFY_LOGICAL_SURFACE: 4079 if (cn->detail == 0) 4080 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4081 cn->data.consistency_completed.logical_drive, 4082 ld->cl_name); 4083 break; 4084 } 4085} 4086 4087/************************************************************************ 4088 * Handle a notify event relating to the status of a physical drive. 4089 */ 4090static void 4091ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4092{ 4093} 4094 4095/************************************************************************ 4096 * Handle a notify event relating to the status of a physical drive. 4097 */ 4098static void 4099ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4100{ 4101 struct ciss_lun_report *cll = NULL; 4102 int bus, target; 4103 4104 switch (cn->subclass) { 4105 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4106 case CISS_NOTIFY_HOTPLUG_NONDISK: 4107 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4108 target = 4109 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4110 4111 if (cn->detail == 0) { 4112 /* 4113 * Mark the device offline so that it'll start producing selection 4114 * timeouts to the upper layer. 4115 */ 4116 if ((bus >= 0) && (target >= 0)) 4117 sc->ciss_physical[bus][target].cp_online = 0; 4118 } else { 4119 /* 4120 * Rescan the physical lun list for new items 4121 */ 4122 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4123 sc->ciss_cfg->max_physical_supported); 4124 if (cll == NULL) { 4125 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4126 break; 4127 } 4128 ciss_filter_physical(sc, cll); 4129 } 4130 break; 4131 4132 default: 4133 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4134 return; 4135 } 4136 4137 if (cll != NULL) 4138 free(cll, CISS_MALLOC_CLASS); 4139} 4140 4141/************************************************************************ 4142 * Handle deferred processing of notify events. Notify events may need 4143 * sleep which is unsafe during an interrupt. 4144 */ 4145static void 4146ciss_notify_thread(void *arg) 4147{ 4148 struct ciss_softc *sc; 4149 struct ciss_request *cr; 4150 struct ciss_notify *cn; 4151 4152 sc = (struct ciss_softc *)arg; 4153#if __FreeBSD_version >= 500000 4154 mtx_lock(&sc->ciss_mtx); 4155#endif 4156 4157 for (;;) { 4158 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4159 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4160 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4161 } 4162 4163 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4164 break; 4165 4166 cr = ciss_dequeue_notify(sc); 4167 4168 if (cr == NULL) 4169 panic("cr null"); 4170 cn = (struct ciss_notify *)cr->cr_data; 4171 4172 switch (cn->class) { 4173 case CISS_NOTIFY_HOTPLUG: 4174 ciss_notify_hotplug(sc, cn); 4175 break; 4176 case CISS_NOTIFY_LOGICAL: 4177 ciss_notify_logical(sc, cn); 4178 break; 4179 case CISS_NOTIFY_PHYSICAL: 4180 ciss_notify_physical(sc, cn); 4181 break; 4182 } 4183 4184 ciss_release_request(cr); 4185 4186 } 4187 sc->ciss_notify_thread = NULL; 4188 wakeup(&sc->ciss_notify_thread); 4189 4190#if __FreeBSD_version >= 500000 4191 mtx_unlock(&sc->ciss_mtx); 4192#endif 4193 kproc_exit(0); 4194} 4195 4196/************************************************************************ 4197 * Start the notification kernel thread. 4198 */ 4199static void 4200ciss_spawn_notify_thread(struct ciss_softc *sc) 4201{ 4202 4203#if __FreeBSD_version > 500005 4204 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4205 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4206 device_get_unit(sc->ciss_dev))) 4207#else 4208 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4209 &sc->ciss_notify_thread, "ciss_notify%d", 4210 device_get_unit(sc->ciss_dev))) 4211#endif 4212 panic("Could not create notify thread\n"); 4213} 4214 4215/************************************************************************ 4216 * Kill the notification kernel thread. 4217 */ 4218static void 4219ciss_kill_notify_thread(struct ciss_softc *sc) 4220{ 4221 4222 if (sc->ciss_notify_thread == NULL) 4223 return; 4224 4225 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4226 wakeup(&sc->ciss_notify); 4227 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4228} 4229 4230/************************************************************************ 4231 * Print a request. 4232 */ 4233static void 4234ciss_print_request(struct ciss_request *cr) 4235{ 4236 struct ciss_softc *sc; 4237 struct ciss_command *cc; 4238 int i; 4239 4240 sc = cr->cr_sc; 4241 cc = cr->cr_cc; 4242 4243 ciss_printf(sc, "REQUEST @ %p\n", cr); 4244 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4245 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4246 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4247 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4248 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4249 switch(cc->header.address.mode.mode) { 4250 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4251 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4252 ciss_printf(sc, " physical bus %d target %d\n", 4253 cc->header.address.physical.bus, cc->header.address.physical.target); 4254 break; 4255 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4256 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4257 break; 4258 } 4259 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4260 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4261 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4262 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4263 cc->cdb.cdb_length, 4264 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4265 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4266 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4267 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4268 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4269 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4271 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4272 4273 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4274 /* XXX print error info */ 4275 } else { 4276 /* since we don't use chained s/g, don't support it here */ 4277 for (i = 0; i < cc->header.sg_in_list; i++) { 4278 if ((i % 4) == 0) 4279 ciss_printf(sc, " "); 4280 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4281 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4282 printf("\n"); 4283 } 4284 } 4285} 4286 4287/************************************************************************ 4288 * Print information about the status of a logical drive. 4289 */ 4290static void 4291ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4292{ 4293 int bus, target, i; 4294 4295 if (ld->cl_lstatus == NULL) { 4296 printf("does not exist\n"); 4297 return; 4298 } 4299 4300 /* print drive status */ 4301 switch(ld->cl_lstatus->status) { 4302 case CISS_LSTATUS_OK: 4303 printf("online\n"); 4304 break; 4305 case CISS_LSTATUS_INTERIM_RECOVERY: 4306 printf("in interim recovery mode\n"); 4307 break; 4308 case CISS_LSTATUS_READY_RECOVERY: 4309 printf("ready to begin recovery\n"); 4310 break; 4311 case CISS_LSTATUS_RECOVERING: 4312 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4313 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4314 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4315 bus, target, ld->cl_lstatus->blocks_to_recover); 4316 break; 4317 case CISS_LSTATUS_EXPANDING: 4318 printf("being expanded, %u blocks remaining\n", 4319 ld->cl_lstatus->blocks_to_recover); 4320 break; 4321 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4322 printf("queued for expansion\n"); 4323 break; 4324 case CISS_LSTATUS_FAILED: 4325 printf("queued for expansion\n"); 4326 break; 4327 case CISS_LSTATUS_WRONG_PDRIVE: 4328 printf("wrong physical drive inserted\n"); 4329 break; 4330 case CISS_LSTATUS_MISSING_PDRIVE: 4331 printf("missing a needed physical drive\n"); 4332 break; 4333 case CISS_LSTATUS_BECOMING_READY: 4334 printf("becoming ready\n"); 4335 break; 4336 } 4337 4338 /* print failed physical drives */ 4339 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4340 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4341 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4342 if (bus == -1) 4343 continue; 4344 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4345 ld->cl_lstatus->drive_failure_map[i]); 4346 } 4347} 4348 4349#ifdef CISS_DEBUG 4350#include "opt_ddb.h" 4351#ifdef DDB 4352#include <ddb/ddb.h> 4353/************************************************************************ 4354 * Print information about the controller/driver. 4355 */ 4356static void 4357ciss_print_adapter(struct ciss_softc *sc) 4358{ 4359 int i, j; 4360 4361 ciss_printf(sc, "ADAPTER:\n"); 4362 for (i = 0; i < CISSQ_COUNT; i++) { 4363 ciss_printf(sc, "%s %d/%d\n", 4364 i == 0 ? "free" : 4365 i == 1 ? "busy" : "complete", 4366 sc->ciss_qstat[i].q_length, 4367 sc->ciss_qstat[i].q_max); 4368 } 4369 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4370 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4371 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4372 4373 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4374 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4375 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4376 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4377 } 4378 } 4379 4380 /* XXX Should physical drives be printed out here? */ 4381 4382 for (i = 1; i < sc->ciss_max_requests; i++) 4383 ciss_print_request(sc->ciss_request + i); 4384} 4385 4386/* DDB hook */ 4387DB_COMMAND(ciss_prt, db_ciss_prt) 4388{ 4389 struct ciss_softc *sc; 4390 devclass_t dc; 4391 int maxciss, i; 4392 4393 dc = devclass_find("ciss"); 4394 if ( dc == NULL ) { 4395 printf("%s: can't find devclass!\n", __func__); 4396 return; 4397 } 4398 maxciss = devclass_get_maxunit(dc); 4399 for (i = 0; i < maxciss; i++) { 4400 sc = devclass_get_softc(dc, i); 4401 ciss_print_adapter(sc); 4402 } 4403} 4404#endif 4405#endif 4406 4407/************************************************************************ 4408 * Return a name for a logical drive status value. 4409 */ 4410static const char * 4411ciss_name_ldrive_status(int status) 4412{ 4413 switch (status) { 4414 case CISS_LSTATUS_OK: 4415 return("OK"); 4416 case CISS_LSTATUS_FAILED: 4417 return("failed"); 4418 case CISS_LSTATUS_NOT_CONFIGURED: 4419 return("not configured"); 4420 case CISS_LSTATUS_INTERIM_RECOVERY: 4421 return("interim recovery"); 4422 case CISS_LSTATUS_READY_RECOVERY: 4423 return("ready for recovery"); 4424 case CISS_LSTATUS_RECOVERING: 4425 return("recovering"); 4426 case CISS_LSTATUS_WRONG_PDRIVE: 4427 return("wrong physical drive inserted"); 4428 case CISS_LSTATUS_MISSING_PDRIVE: 4429 return("missing physical drive"); 4430 case CISS_LSTATUS_EXPANDING: 4431 return("expanding"); 4432 case CISS_LSTATUS_BECOMING_READY: 4433 return("becoming ready"); 4434 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4435 return("queued for expansion"); 4436 } 4437 return("unknown status"); 4438} 4439 4440/************************************************************************ 4441 * Return an online/offline/nonexistent value for a logical drive 4442 * status value. 4443 */ 4444static int 4445ciss_decode_ldrive_status(int status) 4446{ 4447 switch(status) { 4448 case CISS_LSTATUS_NOT_CONFIGURED: 4449 return(CISS_LD_NONEXISTENT); 4450 4451 case CISS_LSTATUS_OK: 4452 case CISS_LSTATUS_INTERIM_RECOVERY: 4453 case CISS_LSTATUS_READY_RECOVERY: 4454 case CISS_LSTATUS_RECOVERING: 4455 case CISS_LSTATUS_EXPANDING: 4456 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4457 return(CISS_LD_ONLINE); 4458 4459 case CISS_LSTATUS_FAILED: 4460 case CISS_LSTATUS_WRONG_PDRIVE: 4461 case CISS_LSTATUS_MISSING_PDRIVE: 4462 case CISS_LSTATUS_BECOMING_READY: 4463 default: 4464 return(CISS_LD_OFFLINE); 4465 } 4466} 4467 4468 4469/************************************************************************ 4470 * Return a name for a logical drive's organisation. 4471 */ 4472static const char * 4473ciss_name_ldrive_org(int org) 4474{ 4475 switch(org) { 4476 case CISS_LDRIVE_RAID0: 4477 return("RAID 0"); 4478 case CISS_LDRIVE_RAID1: 4479 return("RAID 1(1+0)"); 4480 case CISS_LDRIVE_RAID4: 4481 return("RAID 4"); 4482 case CISS_LDRIVE_RAID5: 4483 return("RAID 5"); 4484 case CISS_LDRIVE_RAID51: 4485 return("RAID 5+1"); 4486 case CISS_LDRIVE_RAIDADG: 4487 return("RAID ADG"); 4488 } 4489 return("unkown"); 4490} 4491 4492/************************************************************************ 4493 * Return a name for a command status value. 4494 */ 4495static const char * 4496ciss_name_command_status(int status) 4497{ 4498 switch(status) { 4499 case CISS_CMD_STATUS_SUCCESS: 4500 return("success"); 4501 case CISS_CMD_STATUS_TARGET_STATUS: 4502 return("target status"); 4503 case CISS_CMD_STATUS_DATA_UNDERRUN: 4504 return("data underrun"); 4505 case CISS_CMD_STATUS_DATA_OVERRUN: 4506 return("data overrun"); 4507 case CISS_CMD_STATUS_INVALID_COMMAND: 4508 return("invalid command"); 4509 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4510 return("protocol error"); 4511 case CISS_CMD_STATUS_HARDWARE_ERROR: 4512 return("hardware error"); 4513 case CISS_CMD_STATUS_CONNECTION_LOST: 4514 return("connection lost"); 4515 case CISS_CMD_STATUS_ABORTED: 4516 return("aborted"); 4517 case CISS_CMD_STATUS_ABORT_FAILED: 4518 return("abort failed"); 4519 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4520 return("unsolicited abort"); 4521 case CISS_CMD_STATUS_TIMEOUT: 4522 return("timeout"); 4523 case CISS_CMD_STATUS_UNABORTABLE: 4524 return("unabortable"); 4525 } 4526 return("unknown status"); 4527} 4528 4529/************************************************************************ 4530 * Handle an open on the control device. 4531 */ 4532static int 4533ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4534{ 4535 struct ciss_softc *sc; 4536 4537 debug_called(1); 4538 4539 sc = (struct ciss_softc *)dev->si_drv1; 4540 4541 /* we might want to veto if someone already has us open */ 4542 4543 mtx_lock(&sc->ciss_mtx); 4544 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4545 mtx_unlock(&sc->ciss_mtx); 4546 return(0); 4547} 4548 4549/************************************************************************ 4550 * Handle the last close on the control device. 4551 */ 4552static int 4553ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4554{ 4555 struct ciss_softc *sc; 4556 4557 debug_called(1); 4558 4559 sc = (struct ciss_softc *)dev->si_drv1; 4560 4561 mtx_lock(&sc->ciss_mtx); 4562 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4563 mtx_unlock(&sc->ciss_mtx); 4564 return (0); 4565} 4566 4567/******************************************************************************** 4568 * Handle adapter-specific control operations. 4569 * 4570 * Note that the API here is compatible with the Linux driver, in order to 4571 * simplify the porting of Compaq's userland tools. 4572 */ 4573static int 4574ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4575{ 4576 struct ciss_softc *sc; 4577 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4578#ifdef __amd64__ 4579 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4580 IOCTL_Command_struct ioc_swab; 4581#endif 4582 int error; 4583 4584 debug_called(1); 4585 4586 sc = (struct ciss_softc *)dev->si_drv1; 4587 error = 0; 4588 mtx_lock(&sc->ciss_mtx); 4589 4590 switch(cmd) { 4591 case CCISS_GETQSTATS: 4592 { 4593 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4594 4595 switch (cr->cs_item) { 4596 case CISSQ_FREE: 4597 case CISSQ_NOTIFY: 4598 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4599 sizeof(struct ciss_qstat)); 4600 break; 4601 default: 4602 error = ENOIOCTL; 4603 break; 4604 } 4605 4606 break; 4607 } 4608 4609 case CCISS_GETPCIINFO: 4610 { 4611 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4612 4613 pis->bus = pci_get_bus(sc->ciss_dev); 4614 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4615 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4616 pci_get_subdevice(sc->ciss_dev); 4617 4618 break; 4619 } 4620 4621 case CCISS_GETINTINFO: 4622 { 4623 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4624 4625 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4626 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4627 4628 break; 4629 } 4630 4631 case CCISS_SETINTINFO: 4632 { 4633 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4634 4635 if ((cis->delay == 0) && (cis->count == 0)) { 4636 error = EINVAL; 4637 break; 4638 } 4639 4640 /* 4641 * XXX apparently this is only safe if the controller is idle, 4642 * we should suspend it before doing this. 4643 */ 4644 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4645 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4646 4647 if (ciss_update_config(sc)) 4648 error = EIO; 4649 4650 /* XXX resume the controller here */ 4651 break; 4652 } 4653 4654 case CCISS_GETNODENAME: 4655 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4656 sizeof(NodeName_type)); 4657 break; 4658 4659 case CCISS_SETNODENAME: 4660 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4661 sizeof(NodeName_type)); 4662 if (ciss_update_config(sc)) 4663 error = EIO; 4664 break; 4665 4666 case CCISS_GETHEARTBEAT: 4667 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4668 break; 4669 4670 case CCISS_GETBUSTYPES: 4671 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4672 break; 4673 4674 case CCISS_GETFIRMVER: 4675 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4676 sizeof(FirmwareVer_type)); 4677 break; 4678 4679 case CCISS_GETDRIVERVER: 4680 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4681 break; 4682 4683 case CCISS_REVALIDVOLS: 4684 /* 4685 * This is a bit ugly; to do it "right" we really need 4686 * to find any disks that have changed, kick CAM off them, 4687 * then rescan only these disks. It'd be nice if they 4688 * a) told us which disk(s) they were going to play with, 4689 * and b) which ones had arrived. 8( 4690 */ 4691 break; 4692 4693#ifdef __amd64__ 4694 case CCISS_PASSTHRU32: 4695 ioc_swab.LUN_info = ioc32->LUN_info; 4696 ioc_swab.Request = ioc32->Request; 4697 ioc_swab.error_info = ioc32->error_info; 4698 ioc_swab.buf_size = ioc32->buf_size; 4699 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4700 ioc = &ioc_swab; 4701 /* FALLTHROUGH */ 4702#endif 4703 4704 case CCISS_PASSTHRU: 4705 error = ciss_user_command(sc, ioc); 4706 break; 4707 4708 default: 4709 debug(0, "unknown ioctl 0x%lx", cmd); 4710 4711 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4712 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4713 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4714 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4715 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4716 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4717 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4718 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4719 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4720 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4721 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4722 4723 error = ENOIOCTL; 4724 break; 4725 } 4726 4727 mtx_unlock(&sc->ciss_mtx); 4728 return(error); 4729} 4730