ciss.c revision 204648
1/*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: head/sys/dev/ciss/ciss.c 204648 2010-03-03 17:58:41Z mav $ 28 */ 29 30/* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77#include <sys/param.h> 78#include <sys/systm.h> 79#include <sys/malloc.h> 80#include <sys/kernel.h> 81#include <sys/bus.h> 82#include <sys/conf.h> 83#include <sys/stat.h> 84#include <sys/kthread.h> 85#include <sys/queue.h> 86#include <sys/sysctl.h> 87 88#include <cam/cam.h> 89#include <cam/cam_ccb.h> 90#include <cam/cam_periph.h> 91#include <cam/cam_sim.h> 92#include <cam/cam_xpt_sim.h> 93#include <cam/scsi/scsi_all.h> 94#include <cam/scsi/scsi_message.h> 95 96#include <machine/bus.h> 97#include <machine/endian.h> 98#include <machine/resource.h> 99#include <sys/rman.h> 100 101#include <dev/pci/pcireg.h> 102#include <dev/pci/pcivar.h> 103 104#include <dev/ciss/cissreg.h> 105#include <dev/ciss/cissio.h> 106#include <dev/ciss/cissvar.h> 107 108MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110/* pci interface */ 111static int ciss_lookup(device_t dev); 112static int ciss_probe(device_t dev); 113static int ciss_attach(device_t dev); 114static int ciss_detach(device_t dev); 115static int ciss_shutdown(device_t dev); 116 117/* (de)initialisation functions, control wrappers */ 118static int ciss_init_pci(struct ciss_softc *sc); 119static int ciss_setup_msix(struct ciss_softc *sc); 120static int ciss_init_perf(struct ciss_softc *sc); 121static int ciss_wait_adapter(struct ciss_softc *sc); 122static int ciss_flush_adapter(struct ciss_softc *sc); 123static int ciss_init_requests(struct ciss_softc *sc); 124static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126static int ciss_identify_adapter(struct ciss_softc *sc); 127static int ciss_init_logical(struct ciss_softc *sc); 128static int ciss_init_physical(struct ciss_softc *sc); 129static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132static int ciss_update_config(struct ciss_softc *sc); 133static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134static void ciss_init_sysctl(struct ciss_softc *sc); 135static void ciss_soft_reset(struct ciss_softc *sc); 136static void ciss_free(struct ciss_softc *sc); 137static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140/* request submission/completion */ 141static int ciss_start(struct ciss_request *cr); 142static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144static void ciss_intr(void *arg); 145static void ciss_perf_intr(void *arg); 146static void ciss_perf_msi_intr(void *arg); 147static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149static int ciss_synch_request(struct ciss_request *cr, int timeout); 150static int ciss_poll_request(struct ciss_request *cr, int timeout); 151static int ciss_wait_request(struct ciss_request *cr, int timeout); 152#if 0 153static int ciss_abort_request(struct ciss_request *cr); 154#endif 155 156/* request queueing */ 157static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158static void ciss_preen_command(struct ciss_request *cr); 159static void ciss_release_request(struct ciss_request *cr); 160 161/* request helpers */ 162static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166/* DMA map/unmap */ 167static int ciss_map_request(struct ciss_request *cr); 168static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170static void ciss_unmap_request(struct ciss_request *cr); 171 172/* CAM interface */ 173static int ciss_cam_init(struct ciss_softc *sc); 174static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 177static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 178static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 179static void ciss_cam_poll(struct cam_sim *sim); 180static void ciss_cam_complete(struct ciss_request *cr); 181static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 182static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 183 int bus, int target); 184static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 185 186/* periodic status monitoring */ 187static void ciss_periodic(void *arg); 188static void ciss_nop_complete(struct ciss_request *cr); 189static void ciss_disable_adapter(struct ciss_softc *sc); 190static void ciss_notify_event(struct ciss_softc *sc); 191static void ciss_notify_complete(struct ciss_request *cr); 192static int ciss_notify_abort(struct ciss_softc *sc); 193static int ciss_notify_abort_bmic(struct ciss_softc *sc); 194static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 195static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 196static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 197 198/* debugging output */ 199static void ciss_print_request(struct ciss_request *cr); 200static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 201static const char *ciss_name_ldrive_status(int status); 202static int ciss_decode_ldrive_status(int status); 203static const char *ciss_name_ldrive_org(int org); 204static const char *ciss_name_command_status(int status); 205 206/* 207 * PCI bus interface. 208 */ 209static device_method_t ciss_methods[] = { 210 /* Device interface */ 211 DEVMETHOD(device_probe, ciss_probe), 212 DEVMETHOD(device_attach, ciss_attach), 213 DEVMETHOD(device_detach, ciss_detach), 214 DEVMETHOD(device_shutdown, ciss_shutdown), 215 { 0, 0 } 216}; 217 218static driver_t ciss_pci_driver = { 219 "ciss", 220 ciss_methods, 221 sizeof(struct ciss_softc) 222}; 223 224static devclass_t ciss_devclass; 225DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 226MODULE_DEPEND(ciss, cam, 1, 1, 1); 227MODULE_DEPEND(ciss, pci, 1, 1, 1); 228 229/* 230 * Control device interface. 231 */ 232static d_open_t ciss_open; 233static d_close_t ciss_close; 234static d_ioctl_t ciss_ioctl; 235 236static struct cdevsw ciss_cdevsw = { 237 .d_version = D_VERSION, 238 .d_flags = 0, 239 .d_open = ciss_open, 240 .d_close = ciss_close, 241 .d_ioctl = ciss_ioctl, 242 .d_name = "ciss", 243}; 244 245/* 246 * This tunable can be set at boot time and controls whether physical devices 247 * that are marked hidden by the firmware should be exposed anyways. 248 */ 249static unsigned int ciss_expose_hidden_physical = 0; 250TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 251 252static unsigned int ciss_nop_message_heartbeat = 0; 253TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 254 255/* 256 * This tunable can force a particular transport to be used: 257 * <= 0 : use default 258 * 1 : force simple 259 * 2 : force performant 260 */ 261static int ciss_force_transport = 0; 262TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 263 264/* 265 * This tunable can force a particular interrupt delivery method to be used: 266 * <= 0 : use default 267 * 1 : force INTx 268 * 2 : force MSIX 269 */ 270static int ciss_force_interrupt = 0; 271TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 272 273/************************************************************************ 274 * CISS adapters amazingly don't have a defined programming interface 275 * value. (One could say some very despairing things about PCI and 276 * people just not getting the general idea.) So we are forced to 277 * stick with matching against subvendor/subdevice, and thus have to 278 * be updated for every new CISS adapter that appears. 279 */ 280#define CISS_BOARD_UNKNWON 0 281#define CISS_BOARD_SA5 1 282#define CISS_BOARD_SA5B 2 283#define CISS_BOARD_NOMSI (1<<4) 284 285static struct 286{ 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291} ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 293 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 294 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 295 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 296 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 297 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 298 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 299 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 300 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 301 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 302 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 303 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 307 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 309 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 310 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 315 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 316 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 318 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 324 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 325 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 326 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 327 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 328 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 329 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 330 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 331 { 0, 0, 0, NULL } 332}; 333 334/************************************************************************ 335 * Find a match for the device in our list of known adapters. 336 */ 337static int 338ciss_lookup(device_t dev) 339{ 340 int i; 341 342 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 343 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 344 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 345 return(i); 346 } 347 return(-1); 348} 349 350/************************************************************************ 351 * Match a known CISS adapter. 352 */ 353static int 354ciss_probe(device_t dev) 355{ 356 int i; 357 358 i = ciss_lookup(dev); 359 if (i != -1) { 360 device_set_desc(dev, ciss_vendor_data[i].desc); 361 return(BUS_PROBE_DEFAULT); 362 } 363 return(ENOENT); 364} 365 366/************************************************************************ 367 * Attach the driver to this adapter. 368 */ 369static int 370ciss_attach(device_t dev) 371{ 372 struct ciss_softc *sc; 373 int error; 374 375 debug_called(1); 376 377#ifdef CISS_DEBUG 378 /* print structure/union sizes */ 379 debug_struct(ciss_command); 380 debug_struct(ciss_header); 381 debug_union(ciss_device_address); 382 debug_struct(ciss_cdb); 383 debug_struct(ciss_report_cdb); 384 debug_struct(ciss_notify_cdb); 385 debug_struct(ciss_notify); 386 debug_struct(ciss_message_cdb); 387 debug_struct(ciss_error_info_pointer); 388 debug_struct(ciss_error_info); 389 debug_struct(ciss_sg_entry); 390 debug_struct(ciss_config_table); 391 debug_struct(ciss_bmic_cdb); 392 debug_struct(ciss_bmic_id_ldrive); 393 debug_struct(ciss_bmic_id_lstatus); 394 debug_struct(ciss_bmic_id_table); 395 debug_struct(ciss_bmic_id_pdrive); 396 debug_struct(ciss_bmic_blink_pdrive); 397 debug_struct(ciss_bmic_flush_cache); 398 debug_const(CISS_MAX_REQUESTS); 399 debug_const(CISS_MAX_LOGICAL); 400 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 401 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 402 debug_const(CISS_COMMAND_ALLOC_SIZE); 403 debug_const(CISS_COMMAND_SG_LENGTH); 404 405 debug_type(cciss_pci_info_struct); 406 debug_type(cciss_coalint_struct); 407 debug_type(cciss_coalint_struct); 408 debug_type(NodeName_type); 409 debug_type(NodeName_type); 410 debug_type(Heartbeat_type); 411 debug_type(BusTypes_type); 412 debug_type(FirmwareVer_type); 413 debug_type(DriverVer_type); 414 debug_type(IOCTL_Command_struct); 415#endif 416 417 sc = device_get_softc(dev); 418 sc->ciss_dev = dev; 419 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 420 421 /* 422 * Do PCI-specific init. 423 */ 424 if ((error = ciss_init_pci(sc)) != 0) 425 goto out; 426 427 /* 428 * Initialise driver queues. 429 */ 430 ciss_initq_free(sc); 431 ciss_initq_notify(sc); 432 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 433 434 /* 435 * Initalize device sysctls. 436 */ 437 ciss_init_sysctl(sc); 438 439 /* 440 * Initialise command/request pool. 441 */ 442 if ((error = ciss_init_requests(sc)) != 0) 443 goto out; 444 445 /* 446 * Get adapter information. 447 */ 448 if ((error = ciss_identify_adapter(sc)) != 0) 449 goto out; 450 451 /* 452 * Find all the physical devices. 453 */ 454 if ((error = ciss_init_physical(sc)) != 0) 455 goto out; 456 457 /* 458 * Build our private table of logical devices. 459 */ 460 if ((error = ciss_init_logical(sc)) != 0) 461 goto out; 462 463 /* 464 * Enable interrupts so that the CAM scan can complete. 465 */ 466 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 467 468 /* 469 * Initialise the CAM interface. 470 */ 471 if ((error = ciss_cam_init(sc)) != 0) 472 goto out; 473 474 /* 475 * Start the heartbeat routine and event chain. 476 */ 477 ciss_periodic(sc); 478 479 /* 480 * Create the control device. 481 */ 482 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 483 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 484 "ciss%d", device_get_unit(sc->ciss_dev)); 485 sc->ciss_dev_t->si_drv1 = sc; 486 487 /* 488 * The adapter is running; synchronous commands can now sleep 489 * waiting for an interrupt to signal completion. 490 */ 491 sc->ciss_flags |= CISS_FLAG_RUNNING; 492 493 ciss_spawn_notify_thread(sc); 494 495 error = 0; 496 out: 497 if (error != 0) { 498 /* ciss_free() expects the mutex to be held */ 499 mtx_lock(&sc->ciss_mtx); 500 ciss_free(sc); 501 } 502 return(error); 503} 504 505/************************************************************************ 506 * Detach the driver from this adapter. 507 */ 508static int 509ciss_detach(device_t dev) 510{ 511 struct ciss_softc *sc = device_get_softc(dev); 512 513 debug_called(1); 514 515 mtx_lock(&sc->ciss_mtx); 516 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 517 mtx_unlock(&sc->ciss_mtx); 518 return (EBUSY); 519 } 520 521 /* flush adapter cache */ 522 ciss_flush_adapter(sc); 523 524 /* release all resources. The mutex is released and freed here too. */ 525 ciss_free(sc); 526 527 return(0); 528} 529 530/************************************************************************ 531 * Prepare adapter for system shutdown. 532 */ 533static int 534ciss_shutdown(device_t dev) 535{ 536 struct ciss_softc *sc = device_get_softc(dev); 537 538 debug_called(1); 539 540 mtx_lock(&sc->ciss_mtx); 541 /* flush adapter cache */ 542 ciss_flush_adapter(sc); 543 544 if (sc->ciss_soft_reset) 545 ciss_soft_reset(sc); 546 mtx_unlock(&sc->ciss_mtx); 547 548 return(0); 549} 550 551static void 552ciss_init_sysctl(struct ciss_softc *sc) 553{ 554 555 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 556 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 557 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 558} 559 560/************************************************************************ 561 * Perform PCI-specific attachment actions. 562 */ 563static int 564ciss_init_pci(struct ciss_softc *sc) 565{ 566 uintptr_t cbase, csize, cofs; 567 uint32_t method, supported_methods; 568 int error, sqmask, i; 569 void *intr; 570 571 debug_called(1); 572 573 /* 574 * Work out adapter type. 575 */ 576 i = ciss_lookup(sc->ciss_dev); 577 if (i < 0) { 578 ciss_printf(sc, "unknown adapter type\n"); 579 return (ENXIO); 580 } 581 582 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 583 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 584 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 585 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 586 } else { 587 /* 588 * XXX Big hammer, masks/unmasks all possible interrupts. This should 589 * work on all hardware variants. Need to add code to handle the 590 * "controller crashed" interupt bit that this unmasks. 591 */ 592 sqmask = ~0; 593 } 594 595 /* 596 * Allocate register window first (we need this to find the config 597 * struct). 598 */ 599 error = ENXIO; 600 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 601 if ((sc->ciss_regs_resource = 602 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 603 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 604 ciss_printf(sc, "can't allocate register window\n"); 605 return(ENXIO); 606 } 607 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 608 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 609 610 /* 611 * Find the BAR holding the config structure. If it's not the one 612 * we already mapped for registers, map it too. 613 */ 614 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 615 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 616 if ((sc->ciss_cfg_resource = 617 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 618 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 619 ciss_printf(sc, "can't allocate config window\n"); 620 return(ENXIO); 621 } 622 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 623 csize = rman_get_end(sc->ciss_cfg_resource) - 624 rman_get_start(sc->ciss_cfg_resource) + 1; 625 } else { 626 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 627 csize = rman_get_end(sc->ciss_regs_resource) - 628 rman_get_start(sc->ciss_regs_resource) + 1; 629 } 630 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 631 632 /* 633 * Use the base/size/offset values we just calculated to 634 * sanity-check the config structure. If it's OK, point to it. 635 */ 636 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 637 ciss_printf(sc, "config table outside window\n"); 638 return(ENXIO); 639 } 640 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 641 debug(1, "config struct at %p", sc->ciss_cfg); 642 643 /* 644 * Calculate the number of request structures/commands we are 645 * going to provide for this adapter. 646 */ 647 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 648 649 /* 650 * Validate the config structure. If we supported other transport 651 * methods, we could select amongst them at this point in time. 652 */ 653 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 654 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 655 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 656 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 657 return(ENXIO); 658 } 659 660 /* 661 * Select the mode of operation, prefer Performant. 662 */ 663 if (!(sc->ciss_cfg->supported_methods & 664 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 665 ciss_printf(sc, "No supported transport layers: 0x%x\n", 666 sc->ciss_cfg->supported_methods); 667 } 668 669 switch (ciss_force_transport) { 670 case 1: 671 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 672 break; 673 case 2: 674 supported_methods = CISS_TRANSPORT_METHOD_PERF; 675 break; 676 default: 677 supported_methods = sc->ciss_cfg->supported_methods; 678 break; 679 } 680 681setup: 682 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 683 method = CISS_TRANSPORT_METHOD_PERF; 684 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 685 sc->ciss_cfg->transport_offset); 686 if (ciss_init_perf(sc)) { 687 supported_methods &= ~method; 688 goto setup; 689 } 690 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 691 method = CISS_TRANSPORT_METHOD_SIMPLE; 692 } else { 693 ciss_printf(sc, "No supported transport methods: 0x%x\n", 694 sc->ciss_cfg->supported_methods); 695 return(ENXIO); 696 } 697 698 /* 699 * Tell it we're using the low 4GB of RAM. Set the default interrupt 700 * coalescing options. 701 */ 702 sc->ciss_cfg->requested_method = method; 703 sc->ciss_cfg->command_physlimit = 0; 704 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 705 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 706 707#ifdef __i386__ 708 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 709#endif 710 711 if (ciss_update_config(sc)) { 712 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 713 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 714 return(ENXIO); 715 } 716 if ((sc->ciss_cfg->active_method & method) == 0) { 717 supported_methods &= ~method; 718 if (supported_methods == 0) { 719 ciss_printf(sc, "adapter refuses to go into available transports " 720 "mode (0x%x, 0x%x)\n", supported_methods, 721 sc->ciss_cfg->active_method); 722 return(ENXIO); 723 } else 724 goto setup; 725 } 726 727 /* 728 * Wait for the adapter to come ready. 729 */ 730 if ((error = ciss_wait_adapter(sc)) != 0) 731 return(error); 732 733 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 734 * interrupts have a rid of 0, this will be overridden if MSIX is used. 735 */ 736 sc->ciss_irq_rid[0] = 0; 737 if (method == CISS_TRANSPORT_METHOD_PERF) { 738 ciss_printf(sc, "PERFORMANT Transport\n"); 739 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 740 intr = ciss_perf_msi_intr; 741 } else { 742 intr = ciss_perf_intr; 743 } 744 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 745 * Unfortunately, there is no good way to know if this is a SAS 746 * controller. Hopefully enabling this bit universally will work OK. 747 * It seems to work fine for SA6i controllers. 748 */ 749 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 750 751 } else { 752 ciss_printf(sc, "SIMPLE Transport\n"); 753 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 754 if (ciss_force_interrupt == 2) 755 /* If this fails, we automatically revert to INTx */ 756 ciss_setup_msix(sc); 757 sc->ciss_perf = NULL; 758 intr = ciss_intr; 759 sc->ciss_interrupt_mask = sqmask; 760 } 761 762 /* 763 * Turn off interrupts before we go routing anything. 764 */ 765 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 766 767 /* 768 * Allocate and set up our interrupt. 769 */ 770 if ((sc->ciss_irq_resource = 771 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 772 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 773 ciss_printf(sc, "can't allocate interrupt\n"); 774 return(ENXIO); 775 } 776 777 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 778 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 779 &sc->ciss_intr)) { 780 ciss_printf(sc, "can't set up interrupt\n"); 781 return(ENXIO); 782 } 783 784 /* 785 * Allocate the parent bus DMA tag appropriate for our PCI 786 * interface. 787 * 788 * Note that "simple" adapters can only address within a 32-bit 789 * span. 790 */ 791 if (bus_dma_tag_create(NULL, /* parent */ 792 1, 0, /* alignment, boundary */ 793 BUS_SPACE_MAXADDR, /* lowaddr */ 794 BUS_SPACE_MAXADDR, /* highaddr */ 795 NULL, NULL, /* filter, filterarg */ 796 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 797 CISS_MAX_SG_ELEMENTS, /* nsegments */ 798 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 799 0, /* flags */ 800 NULL, NULL, /* lockfunc, lockarg */ 801 &sc->ciss_parent_dmat)) { 802 ciss_printf(sc, "can't allocate parent DMA tag\n"); 803 return(ENOMEM); 804 } 805 806 /* 807 * Create DMA tag for mapping buffers into adapter-addressable 808 * space. 809 */ 810 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 811 1, 0, /* alignment, boundary */ 812 BUS_SPACE_MAXADDR, /* lowaddr */ 813 BUS_SPACE_MAXADDR, /* highaddr */ 814 NULL, NULL, /* filter, filterarg */ 815 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 816 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 817 BUS_DMA_ALLOCNOW, /* flags */ 818 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 819 &sc->ciss_buffer_dmat)) { 820 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 821 return(ENOMEM); 822 } 823 return(0); 824} 825 826/************************************************************************ 827 * Setup MSI/MSIX operation (Performant only) 828 * Four interrupts are available, but we only use 1 right now. If MSI-X 829 * isn't avaialble, try using MSI instead. 830 */ 831static int 832ciss_setup_msix(struct ciss_softc *sc) 833{ 834 int val, i; 835 836 /* Weed out devices that don't actually support MSI */ 837 i = ciss_lookup(sc->ciss_dev); 838 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 839 return (EINVAL); 840 841 /* 842 * Only need to use the minimum number of MSI vectors, as the driver 843 * doesn't support directed MSIX interrupts. 844 */ 845 val = pci_msix_count(sc->ciss_dev); 846 if (val < CISS_MSI_COUNT) { 847 val = pci_msi_count(sc->ciss_dev); 848 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 849 if (val < CISS_MSI_COUNT) 850 return (EINVAL); 851 } 852 val = MIN(val, CISS_MSI_COUNT); 853 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 854 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 855 return (EINVAL); 856 } 857 858 sc->ciss_msi = val; 859 if (bootverbose) 860 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 861 (val != 1) ? "s" : ""); 862 863 for (i = 0; i < val; i++) 864 sc->ciss_irq_rid[i] = i + 1; 865 866 return (0); 867 868} 869 870/************************************************************************ 871 * Setup the Performant structures. 872 */ 873static int 874ciss_init_perf(struct ciss_softc *sc) 875{ 876 struct ciss_perf_config *pc = sc->ciss_perf; 877 int reply_size; 878 879 /* 880 * Create the DMA tag for the reply queue. 881 */ 882 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 883 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 884 1, 0, /* alignment, boundary */ 885 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 886 BUS_SPACE_MAXADDR, /* highaddr */ 887 NULL, NULL, /* filter, filterarg */ 888 reply_size, 1, /* maxsize, nsegments */ 889 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 890 0, /* flags */ 891 NULL, NULL, /* lockfunc, lockarg */ 892 &sc->ciss_reply_dmat)) { 893 ciss_printf(sc, "can't allocate reply DMA tag\n"); 894 return(ENOMEM); 895 } 896 /* 897 * Allocate memory and make it available for DMA. 898 */ 899 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 900 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 901 ciss_printf(sc, "can't allocate reply memory\n"); 902 return(ENOMEM); 903 } 904 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 905 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 906 bzero(sc->ciss_reply, reply_size); 907 908 sc->ciss_cycle = 0x1; 909 sc->ciss_rqidx = 0; 910 911 /* 912 * Preload the fetch table with common command sizes. This allows the 913 * hardware to not waste bus cycles for typical i/o commands, but also not 914 * tax the driver to be too exact in choosing sizes. The table is optimized 915 * for page-aligned i/o's, but since most i/o comes from the various pagers, 916 * it's a reasonable assumption to make. 917 */ 918 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 919 pc->fetch_count[CISS_SG_FETCH_1] = 920 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 921 pc->fetch_count[CISS_SG_FETCH_2] = 922 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 923 pc->fetch_count[CISS_SG_FETCH_4] = 924 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 925 pc->fetch_count[CISS_SG_FETCH_8] = 926 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 927 pc->fetch_count[CISS_SG_FETCH_16] = 928 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 929 pc->fetch_count[CISS_SG_FETCH_32] = 930 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 931 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 932 933 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 934 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 935 pc->rq_bank_hi = 0; 936 pc->rq_bank_lo = 0; 937 pc->rq[0].rq_addr_hi = 0x0; 938 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 939 940 return(0); 941} 942 943/************************************************************************ 944 * Wait for the adapter to come ready. 945 */ 946static int 947ciss_wait_adapter(struct ciss_softc *sc) 948{ 949 int i; 950 951 debug_called(1); 952 953 /* 954 * Wait for the adapter to come ready. 955 */ 956 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 957 ciss_printf(sc, "waiting for adapter to come ready...\n"); 958 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 959 DELAY(1000000); /* one second */ 960 if (i > 30) { 961 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 962 return(EIO); 963 } 964 } 965 } 966 return(0); 967} 968 969/************************************************************************ 970 * Flush the adapter cache. 971 */ 972static int 973ciss_flush_adapter(struct ciss_softc *sc) 974{ 975 struct ciss_request *cr; 976 struct ciss_bmic_flush_cache *cbfc; 977 int error, command_status; 978 979 debug_called(1); 980 981 cr = NULL; 982 cbfc = NULL; 983 984 /* 985 * Build a BMIC request to flush the cache. We don't disable 986 * it, as we may be going to do more I/O (eg. we are emulating 987 * the Synchronise Cache command). 988 */ 989 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 990 error = ENOMEM; 991 goto out; 992 } 993 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 994 (void **)&cbfc, sizeof(*cbfc))) != 0) 995 goto out; 996 997 /* 998 * Submit the request and wait for it to complete. 999 */ 1000 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1001 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1002 goto out; 1003 } 1004 1005 /* 1006 * Check response. 1007 */ 1008 ciss_report_request(cr, &command_status, NULL); 1009 switch(command_status) { 1010 case CISS_CMD_STATUS_SUCCESS: 1011 break; 1012 default: 1013 ciss_printf(sc, "error flushing cache (%s)\n", 1014 ciss_name_command_status(command_status)); 1015 error = EIO; 1016 goto out; 1017 } 1018 1019out: 1020 if (cbfc != NULL) 1021 free(cbfc, CISS_MALLOC_CLASS); 1022 if (cr != NULL) 1023 ciss_release_request(cr); 1024 return(error); 1025} 1026 1027static void 1028ciss_soft_reset(struct ciss_softc *sc) 1029{ 1030 struct ciss_request *cr = NULL; 1031 struct ciss_command *cc; 1032 int i, error = 0; 1033 1034 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1035 /* only reset proxy controllers */ 1036 if (sc->ciss_controllers[i].physical.bus == 0) 1037 continue; 1038 1039 if ((error = ciss_get_request(sc, &cr)) != 0) 1040 break; 1041 1042 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1043 NULL, 0)) != 0) 1044 break; 1045 1046 cc = cr->cr_cc; 1047 cc->header.address = sc->ciss_controllers[i]; 1048 1049 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1050 break; 1051 1052 ciss_release_request(cr); 1053 } 1054 1055 if (error) 1056 ciss_printf(sc, "error resetting controller (%d)\n", error); 1057 1058 if (cr != NULL) 1059 ciss_release_request(cr); 1060} 1061 1062/************************************************************************ 1063 * Allocate memory for the adapter command structures, initialise 1064 * the request structures. 1065 * 1066 * Note that the entire set of commands are allocated in a single 1067 * contiguous slab. 1068 */ 1069static int 1070ciss_init_requests(struct ciss_softc *sc) 1071{ 1072 struct ciss_request *cr; 1073 int i; 1074 1075 debug_called(1); 1076 1077 if (bootverbose) 1078 ciss_printf(sc, "using %d of %d available commands\n", 1079 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1080 1081 /* 1082 * Create the DMA tag for commands. 1083 */ 1084 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1085 32, 0, /* alignment, boundary */ 1086 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1087 BUS_SPACE_MAXADDR, /* highaddr */ 1088 NULL, NULL, /* filter, filterarg */ 1089 CISS_COMMAND_ALLOC_SIZE * 1090 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1091 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1092 0, /* flags */ 1093 NULL, NULL, /* lockfunc, lockarg */ 1094 &sc->ciss_command_dmat)) { 1095 ciss_printf(sc, "can't allocate command DMA tag\n"); 1096 return(ENOMEM); 1097 } 1098 /* 1099 * Allocate memory and make it available for DMA. 1100 */ 1101 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1102 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1103 ciss_printf(sc, "can't allocate command memory\n"); 1104 return(ENOMEM); 1105 } 1106 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1107 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1108 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1109 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1110 1111 /* 1112 * Set up the request and command structures, push requests onto 1113 * the free queue. 1114 */ 1115 for (i = 1; i < sc->ciss_max_requests; i++) { 1116 cr = &sc->ciss_request[i]; 1117 cr->cr_sc = sc; 1118 cr->cr_tag = i; 1119 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1120 CISS_COMMAND_ALLOC_SIZE * i); 1121 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1122 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1123 ciss_enqueue_free(cr); 1124 } 1125 return(0); 1126} 1127 1128static void 1129ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1130{ 1131 uint32_t *addr; 1132 1133 addr = arg; 1134 *addr = segs[0].ds_addr; 1135} 1136 1137/************************************************************************ 1138 * Identify the adapter, print some information about it. 1139 */ 1140static int 1141ciss_identify_adapter(struct ciss_softc *sc) 1142{ 1143 struct ciss_request *cr; 1144 int error, command_status; 1145 1146 debug_called(1); 1147 1148 cr = NULL; 1149 1150 /* 1151 * Get a request, allocate storage for the adapter data. 1152 */ 1153 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1154 (void **)&sc->ciss_id, 1155 sizeof(*sc->ciss_id))) != 0) 1156 goto out; 1157 1158 /* 1159 * Submit the request and wait for it to complete. 1160 */ 1161 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1162 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1163 goto out; 1164 } 1165 1166 /* 1167 * Check response. 1168 */ 1169 ciss_report_request(cr, &command_status, NULL); 1170 switch(command_status) { 1171 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1172 break; 1173 case CISS_CMD_STATUS_DATA_UNDERRUN: 1174 case CISS_CMD_STATUS_DATA_OVERRUN: 1175 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1176 default: 1177 ciss_printf(sc, "error reading adapter information (%s)\n", 1178 ciss_name_command_status(command_status)); 1179 error = EIO; 1180 goto out; 1181 } 1182 1183 /* sanity-check reply */ 1184 if (!sc->ciss_id->big_map_supported) { 1185 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1186 error = ENXIO; 1187 goto out; 1188 } 1189 1190#if 0 1191 /* XXX later revisions may not need this */ 1192 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1193#endif 1194 1195 /* XXX only really required for old 5300 adapters? */ 1196 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1197 1198 /* print information */ 1199 if (bootverbose) { 1200#if 0 /* XXX proxy volumes??? */ 1201 ciss_printf(sc, " %d logical drive%s configured\n", 1202 sc->ciss_id->configured_logical_drives, 1203 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1204#endif 1205 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1206 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1207 1208 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1209 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1210 ciss_printf(sc, " supported I/O methods 0x%b\n", 1211 sc->ciss_cfg->supported_methods, 1212 "\20\1READY\2simple\3performant\4MEMQ\n"); 1213 ciss_printf(sc, " active I/O method 0x%b\n", 1214 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1215 ciss_printf(sc, " 4G page base 0x%08x\n", 1216 sc->ciss_cfg->command_physlimit); 1217 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1218 sc->ciss_cfg->interrupt_coalesce_delay); 1219 ciss_printf(sc, " interrupt coalesce count %d\n", 1220 sc->ciss_cfg->interrupt_coalesce_count); 1221 ciss_printf(sc, " max outstanding commands %d\n", 1222 sc->ciss_cfg->max_outstanding_commands); 1223 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1224 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1225 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1226 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1227 } 1228 1229out: 1230 if (error) { 1231 if (sc->ciss_id != NULL) { 1232 free(sc->ciss_id, CISS_MALLOC_CLASS); 1233 sc->ciss_id = NULL; 1234 } 1235 } 1236 if (cr != NULL) 1237 ciss_release_request(cr); 1238 return(error); 1239} 1240 1241/************************************************************************ 1242 * Helper routine for generating a list of logical and physical luns. 1243 */ 1244static struct ciss_lun_report * 1245ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1246{ 1247 struct ciss_request *cr; 1248 struct ciss_command *cc; 1249 struct ciss_report_cdb *crc; 1250 struct ciss_lun_report *cll; 1251 int command_status; 1252 int report_size; 1253 int error = 0; 1254 1255 debug_called(1); 1256 1257 cr = NULL; 1258 cll = NULL; 1259 1260 /* 1261 * Get a request, allocate storage for the address list. 1262 */ 1263 if ((error = ciss_get_request(sc, &cr)) != 0) 1264 goto out; 1265 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1266 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1267 ciss_printf(sc, "can't allocate memory for lun report\n"); 1268 error = ENOMEM; 1269 goto out; 1270 } 1271 1272 /* 1273 * Build the Report Logical/Physical LUNs command. 1274 */ 1275 cc = cr->cr_cc; 1276 cr->cr_data = cll; 1277 cr->cr_length = report_size; 1278 cr->cr_flags = CISS_REQ_DATAIN; 1279 1280 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1281 cc->header.address.physical.bus = 0; 1282 cc->header.address.physical.target = 0; 1283 cc->cdb.cdb_length = sizeof(*crc); 1284 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1285 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1286 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1287 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1288 1289 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1290 bzero(crc, sizeof(*crc)); 1291 crc->opcode = opcode; 1292 crc->length = htonl(report_size); /* big-endian field */ 1293 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1294 1295 /* 1296 * Submit the request and wait for it to complete. (timeout 1297 * here should be much greater than above) 1298 */ 1299 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1300 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1301 goto out; 1302 } 1303 1304 /* 1305 * Check response. Note that data over/underrun is OK. 1306 */ 1307 ciss_report_request(cr, &command_status, NULL); 1308 switch(command_status) { 1309 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1310 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1311 break; 1312 case CISS_CMD_STATUS_DATA_OVERRUN: 1313 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1314 CISS_MAX_LOGICAL); 1315 break; 1316 default: 1317 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1318 ciss_name_command_status(command_status)); 1319 error = EIO; 1320 goto out; 1321 } 1322 ciss_release_request(cr); 1323 cr = NULL; 1324 1325out: 1326 if (cr != NULL) 1327 ciss_release_request(cr); 1328 if (error && cll != NULL) { 1329 free(cll, CISS_MALLOC_CLASS); 1330 cll = NULL; 1331 } 1332 return(cll); 1333} 1334 1335/************************************************************************ 1336 * Find logical drives on the adapter. 1337 */ 1338static int 1339ciss_init_logical(struct ciss_softc *sc) 1340{ 1341 struct ciss_lun_report *cll; 1342 int error = 0, i, j; 1343 int ndrives; 1344 1345 debug_called(1); 1346 1347 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1348 CISS_MAX_LOGICAL); 1349 if (cll == NULL) { 1350 error = ENXIO; 1351 goto out; 1352 } 1353 1354 /* sanity-check reply */ 1355 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1356 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1357 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1358 ndrives, CISS_MAX_LOGICAL); 1359 error = ENXIO; 1360 goto out; 1361 } 1362 1363 /* 1364 * Save logical drive information. 1365 */ 1366 if (bootverbose) { 1367 ciss_printf(sc, "%d logical drive%s\n", 1368 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1369 } 1370 1371 sc->ciss_logical = 1372 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1373 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1374 if (sc->ciss_logical == NULL) { 1375 error = ENXIO; 1376 goto out; 1377 } 1378 1379 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1380 sc->ciss_logical[i] = 1381 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1382 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1383 if (sc->ciss_logical[i] == NULL) { 1384 error = ENXIO; 1385 goto out; 1386 } 1387 1388 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1389 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1390 } 1391 1392 1393 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1394 if (i < ndrives) { 1395 struct ciss_ldrive *ld; 1396 int bus, target; 1397 1398 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1399 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1400 ld = &sc->ciss_logical[bus][target]; 1401 1402 ld->cl_address = cll->lun[i]; 1403 ld->cl_controller = &sc->ciss_controllers[bus]; 1404 if (ciss_identify_logical(sc, ld) != 0) 1405 continue; 1406 /* 1407 * If the drive has had media exchanged, we should bring it online. 1408 */ 1409 if (ld->cl_lstatus->media_exchanged) 1410 ciss_accept_media(sc, ld); 1411 1412 } 1413 } 1414 1415 out: 1416 if (cll != NULL) 1417 free(cll, CISS_MALLOC_CLASS); 1418 return(error); 1419} 1420 1421static int 1422ciss_init_physical(struct ciss_softc *sc) 1423{ 1424 struct ciss_lun_report *cll; 1425 int error = 0, i; 1426 int nphys; 1427 int bus, target; 1428 1429 debug_called(1); 1430 1431 bus = 0; 1432 target = 0; 1433 1434 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1435 CISS_MAX_PHYSICAL); 1436 if (cll == NULL) { 1437 error = ENXIO; 1438 goto out; 1439 } 1440 1441 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1442 1443 if (bootverbose) { 1444 ciss_printf(sc, "%d physical device%s\n", 1445 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1446 } 1447 1448 /* 1449 * Figure out the bus mapping. 1450 * Logical buses include both the local logical bus for local arrays and 1451 * proxy buses for remote arrays. Physical buses are numbered by the 1452 * controller and represent physical buses that hold physical devices. 1453 * We shift these bus numbers so that everything fits into a single flat 1454 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1455 * numbers, and the physical bus numbers are shifted to be above that. 1456 * This results in the various driver arrays being indexed as follows: 1457 * 1458 * ciss_controllers[] - indexed by logical bus 1459 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1460 * being shifted by 32. 1461 * ciss_logical[][] - indexed by logical bus 1462 * ciss_physical[][] - indexed by physical bus 1463 * 1464 * XXX This is getting more and more hackish. CISS really doesn't play 1465 * well with a standard SCSI model; devices are addressed via magic 1466 * cookies, not via b/t/l addresses. Since there is no way to store 1467 * the cookie in the CAM device object, we have to keep these lookup 1468 * tables handy so that the devices can be found quickly at the cost 1469 * of wasting memory and having a convoluted lookup scheme. This 1470 * driver should probably be converted to block interface. 1471 */ 1472 /* 1473 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1474 * controller. A proxy controller is another physical controller 1475 * behind the primary PCI controller. We need to know about this 1476 * so that BMIC commands can be properly targeted. There can be 1477 * proxy controllers attached to a single PCI controller, so 1478 * find the highest numbered one so the array can be properly 1479 * sized. 1480 */ 1481 sc->ciss_max_logical_bus = 1; 1482 for (i = 0; i < nphys; i++) { 1483 if (cll->lun[i].physical.extra_address == 0) { 1484 bus = cll->lun[i].physical.bus; 1485 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1486 } else { 1487 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1488 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1489 } 1490 } 1491 1492 sc->ciss_controllers = 1493 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1494 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1495 1496 if (sc->ciss_controllers == NULL) { 1497 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1498 error = ENOMEM; 1499 goto out; 1500 } 1501 1502 /* setup a map of controller addresses */ 1503 for (i = 0; i < nphys; i++) { 1504 if (cll->lun[i].physical.extra_address == 0) { 1505 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1506 } 1507 } 1508 1509 sc->ciss_physical = 1510 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1511 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1512 if (sc->ciss_physical == NULL) { 1513 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1514 error = ENOMEM; 1515 goto out; 1516 } 1517 1518 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1519 sc->ciss_physical[i] = 1520 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1521 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1522 if (sc->ciss_physical[i] == NULL) { 1523 ciss_printf(sc, "Could not allocate memory for target map\n"); 1524 error = ENOMEM; 1525 goto out; 1526 } 1527 } 1528 1529 ciss_filter_physical(sc, cll); 1530 1531out: 1532 if (cll != NULL) 1533 free(cll, CISS_MALLOC_CLASS); 1534 1535 return(error); 1536} 1537 1538static int 1539ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1540{ 1541 u_int32_t ea; 1542 int i, nphys; 1543 int bus, target; 1544 1545 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1546 for (i = 0; i < nphys; i++) { 1547 if (cll->lun[i].physical.extra_address == 0) 1548 continue; 1549 1550 /* 1551 * Filter out devices that we don't want. Level 3 LUNs could 1552 * probably be supported, but the docs don't give enough of a 1553 * hint to know how. 1554 * 1555 * The mode field of the physical address is likely set to have 1556 * hard disks masked out. Honor it unless the user has overridden 1557 * us with the tunable. We also munge the inquiry data for these 1558 * disks so that they only show up as passthrough devices. Keeping 1559 * them visible in this fashion is useful for doing things like 1560 * flashing firmware. 1561 */ 1562 ea = cll->lun[i].physical.extra_address; 1563 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1564 (CISS_EXTRA_MODE2(ea) == 0x3)) 1565 continue; 1566 if ((ciss_expose_hidden_physical == 0) && 1567 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1568 continue; 1569 1570 /* 1571 * Note: CISS firmware numbers physical busses starting at '1', not 1572 * '0'. This numbering is internal to the firmware and is only 1573 * used as a hint here. 1574 */ 1575 bus = CISS_EXTRA_BUS2(ea) - 1; 1576 target = CISS_EXTRA_TARGET2(ea); 1577 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1578 sc->ciss_physical[bus][target].cp_online = 1; 1579 } 1580 1581 return (0); 1582} 1583 1584static int 1585ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1586{ 1587 struct ciss_request *cr; 1588 struct ciss_command *cc; 1589 struct scsi_inquiry *inq; 1590 int error; 1591 int command_status; 1592 1593 cr = NULL; 1594 1595 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1596 1597 if ((error = ciss_get_request(sc, &cr)) != 0) 1598 goto out; 1599 1600 cc = cr->cr_cc; 1601 cr->cr_data = &ld->cl_geometry; 1602 cr->cr_length = sizeof(ld->cl_geometry); 1603 cr->cr_flags = CISS_REQ_DATAIN; 1604 1605 cc->header.address = ld->cl_address; 1606 cc->cdb.cdb_length = 6; 1607 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1608 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1609 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1610 cc->cdb.timeout = 30; 1611 1612 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1613 inq->opcode = INQUIRY; 1614 inq->byte2 = SI_EVPD; 1615 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1616 inq->length = sizeof(ld->cl_geometry); 1617 1618 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1619 ciss_printf(sc, "error getting geometry (%d)\n", error); 1620 goto out; 1621 } 1622 1623 ciss_report_request(cr, &command_status, NULL); 1624 switch(command_status) { 1625 case CISS_CMD_STATUS_SUCCESS: 1626 case CISS_CMD_STATUS_DATA_UNDERRUN: 1627 break; 1628 case CISS_CMD_STATUS_DATA_OVERRUN: 1629 ciss_printf(sc, "WARNING: Data overrun\n"); 1630 break; 1631 default: 1632 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1633 ciss_name_command_status(command_status)); 1634 break; 1635 } 1636 1637out: 1638 if (cr != NULL) 1639 ciss_release_request(cr); 1640 return(error); 1641} 1642/************************************************************************ 1643 * Identify a logical drive, initialise state related to it. 1644 */ 1645static int 1646ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1647{ 1648 struct ciss_request *cr; 1649 struct ciss_command *cc; 1650 struct ciss_bmic_cdb *cbc; 1651 int error, command_status; 1652 1653 debug_called(1); 1654 1655 cr = NULL; 1656 1657 /* 1658 * Build a BMIC request to fetch the drive ID. 1659 */ 1660 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1661 (void **)&ld->cl_ldrive, 1662 sizeof(*ld->cl_ldrive))) != 0) 1663 goto out; 1664 cc = cr->cr_cc; 1665 cc->header.address = *ld->cl_controller; /* target controller */ 1666 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1667 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1668 1669 /* 1670 * Submit the request and wait for it to complete. 1671 */ 1672 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1673 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1674 goto out; 1675 } 1676 1677 /* 1678 * Check response. 1679 */ 1680 ciss_report_request(cr, &command_status, NULL); 1681 switch(command_status) { 1682 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1683 break; 1684 case CISS_CMD_STATUS_DATA_UNDERRUN: 1685 case CISS_CMD_STATUS_DATA_OVERRUN: 1686 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1687 default: 1688 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1689 ciss_name_command_status(command_status)); 1690 error = EIO; 1691 goto out; 1692 } 1693 ciss_release_request(cr); 1694 cr = NULL; 1695 1696 /* 1697 * Build a CISS BMIC command to get the logical drive status. 1698 */ 1699 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1700 goto out; 1701 1702 /* 1703 * Get the logical drive geometry. 1704 */ 1705 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1706 goto out; 1707 1708 /* 1709 * Print the drive's basic characteristics. 1710 */ 1711 if (bootverbose) { 1712 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1713 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1714 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1715 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1716 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1717 ld->cl_ldrive->block_size)); 1718 1719 ciss_print_ldrive(sc, ld); 1720 } 1721out: 1722 if (error != 0) { 1723 /* make the drive not-exist */ 1724 ld->cl_status = CISS_LD_NONEXISTENT; 1725 if (ld->cl_ldrive != NULL) { 1726 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1727 ld->cl_ldrive = NULL; 1728 } 1729 if (ld->cl_lstatus != NULL) { 1730 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1731 ld->cl_lstatus = NULL; 1732 } 1733 } 1734 if (cr != NULL) 1735 ciss_release_request(cr); 1736 1737 return(error); 1738} 1739 1740/************************************************************************ 1741 * Get status for a logical drive. 1742 * 1743 * XXX should we also do this in response to Test Unit Ready? 1744 */ 1745static int 1746ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1747{ 1748 struct ciss_request *cr; 1749 struct ciss_command *cc; 1750 struct ciss_bmic_cdb *cbc; 1751 int error, command_status; 1752 1753 /* 1754 * Build a CISS BMIC command to get the logical drive status. 1755 */ 1756 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1757 (void **)&ld->cl_lstatus, 1758 sizeof(*ld->cl_lstatus))) != 0) 1759 goto out; 1760 cc = cr->cr_cc; 1761 cc->header.address = *ld->cl_controller; /* target controller */ 1762 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1763 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1764 1765 /* 1766 * Submit the request and wait for it to complete. 1767 */ 1768 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1769 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1770 goto out; 1771 } 1772 1773 /* 1774 * Check response. 1775 */ 1776 ciss_report_request(cr, &command_status, NULL); 1777 switch(command_status) { 1778 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1779 break; 1780 case CISS_CMD_STATUS_DATA_UNDERRUN: 1781 case CISS_CMD_STATUS_DATA_OVERRUN: 1782 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1783 default: 1784 ciss_printf(sc, "error reading logical drive status (%s)\n", 1785 ciss_name_command_status(command_status)); 1786 error = EIO; 1787 goto out; 1788 } 1789 1790 /* 1791 * Set the drive's summary status based on the returned status. 1792 * 1793 * XXX testing shows that a failed JBOD drive comes back at next 1794 * boot in "queued for expansion" mode. WTF? 1795 */ 1796 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1797 1798out: 1799 if (cr != NULL) 1800 ciss_release_request(cr); 1801 return(error); 1802} 1803 1804/************************************************************************ 1805 * Notify the adapter of a config update. 1806 */ 1807static int 1808ciss_update_config(struct ciss_softc *sc) 1809{ 1810 int i; 1811 1812 debug_called(1); 1813 1814 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1815 for (i = 0; i < 1000; i++) { 1816 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1817 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1818 return(0); 1819 } 1820 DELAY(1000); 1821 } 1822 return(1); 1823} 1824 1825/************************************************************************ 1826 * Accept new media into a logical drive. 1827 * 1828 * XXX The drive has previously been offline; it would be good if we 1829 * could make sure it's not open right now. 1830 */ 1831static int 1832ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1833{ 1834 struct ciss_request *cr; 1835 struct ciss_command *cc; 1836 struct ciss_bmic_cdb *cbc; 1837 int command_status; 1838 int error = 0, ldrive; 1839 1840 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1841 1842 debug(0, "bringing logical drive %d back online"); 1843 1844 /* 1845 * Build a CISS BMIC command to bring the drive back online. 1846 */ 1847 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1848 NULL, 0)) != 0) 1849 goto out; 1850 cc = cr->cr_cc; 1851 cc->header.address = *ld->cl_controller; /* target controller */ 1852 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1853 cbc->log_drive = ldrive; 1854 1855 /* 1856 * Submit the request and wait for it to complete. 1857 */ 1858 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1859 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1860 goto out; 1861 } 1862 1863 /* 1864 * Check response. 1865 */ 1866 ciss_report_request(cr, &command_status, NULL); 1867 switch(command_status) { 1868 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1869 /* we should get a logical drive status changed event here */ 1870 break; 1871 default: 1872 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1873 ciss_name_command_status(command_status)); 1874 break; 1875 } 1876 1877out: 1878 if (cr != NULL) 1879 ciss_release_request(cr); 1880 return(error); 1881} 1882 1883/************************************************************************ 1884 * Release adapter resources. 1885 */ 1886static void 1887ciss_free(struct ciss_softc *sc) 1888{ 1889 struct ciss_request *cr; 1890 int i, j; 1891 1892 debug_called(1); 1893 1894 /* we're going away */ 1895 sc->ciss_flags |= CISS_FLAG_ABORTING; 1896 1897 /* terminate the periodic heartbeat routine */ 1898 callout_stop(&sc->ciss_periodic); 1899 1900 /* cancel the Event Notify chain */ 1901 ciss_notify_abort(sc); 1902 1903 ciss_kill_notify_thread(sc); 1904 1905 /* disconnect from CAM */ 1906 if (sc->ciss_cam_sim) { 1907 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1908 if (sc->ciss_cam_sim[i]) { 1909 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1910 cam_sim_free(sc->ciss_cam_sim[i], 0); 1911 } 1912 } 1913 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1914 CISS_PHYSICAL_BASE; i++) { 1915 if (sc->ciss_cam_sim[i]) { 1916 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1917 cam_sim_free(sc->ciss_cam_sim[i], 0); 1918 } 1919 } 1920 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1921 } 1922 if (sc->ciss_cam_devq) 1923 cam_simq_free(sc->ciss_cam_devq); 1924 1925 /* remove the control device */ 1926 mtx_unlock(&sc->ciss_mtx); 1927 if (sc->ciss_dev_t != NULL) 1928 destroy_dev(sc->ciss_dev_t); 1929 1930 /* Final cleanup of the callout. */ 1931 callout_drain(&sc->ciss_periodic); 1932 mtx_destroy(&sc->ciss_mtx); 1933 1934 /* free the controller data */ 1935 if (sc->ciss_id != NULL) 1936 free(sc->ciss_id, CISS_MALLOC_CLASS); 1937 1938 /* release I/O resources */ 1939 if (sc->ciss_regs_resource != NULL) 1940 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1941 sc->ciss_regs_rid, sc->ciss_regs_resource); 1942 if (sc->ciss_cfg_resource != NULL) 1943 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1944 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1945 if (sc->ciss_intr != NULL) 1946 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1947 if (sc->ciss_irq_resource != NULL) 1948 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1949 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1950 if (sc->ciss_msi) 1951 pci_release_msi(sc->ciss_dev); 1952 1953 while ((cr = ciss_dequeue_free(sc)) != NULL) 1954 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1955 if (sc->ciss_buffer_dmat) 1956 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1957 1958 /* destroy command memory and DMA tag */ 1959 if (sc->ciss_command != NULL) { 1960 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1961 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1962 } 1963 if (sc->ciss_command_dmat) 1964 bus_dma_tag_destroy(sc->ciss_command_dmat); 1965 1966 if (sc->ciss_reply) { 1967 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1968 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1969 } 1970 if (sc->ciss_reply_dmat) 1971 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1972 1973 /* destroy DMA tags */ 1974 if (sc->ciss_parent_dmat) 1975 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1976 if (sc->ciss_logical) { 1977 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1978 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1979 if (sc->ciss_logical[i][j].cl_ldrive) 1980 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1981 if (sc->ciss_logical[i][j].cl_lstatus) 1982 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1983 } 1984 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1985 } 1986 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1987 } 1988 1989 if (sc->ciss_physical) { 1990 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1991 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1992 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1993 } 1994 1995 if (sc->ciss_controllers) 1996 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1997 1998} 1999 2000/************************************************************************ 2001 * Give a command to the adapter. 2002 * 2003 * Note that this uses the simple transport layer directly. If we 2004 * want to add support for other layers, we'll need a switch of some 2005 * sort. 2006 * 2007 * Note that the simple transport layer has no way of refusing a 2008 * command; we only have as many request structures as the adapter 2009 * supports commands, so we don't have to check (this presumes that 2010 * the adapter can handle commands as fast as we throw them at it). 2011 */ 2012static int 2013ciss_start(struct ciss_request *cr) 2014{ 2015 struct ciss_command *cc; /* XXX debugging only */ 2016 int error; 2017 2018 cc = cr->cr_cc; 2019 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2020 2021 /* 2022 * Map the request's data. 2023 */ 2024 if ((error = ciss_map_request(cr))) 2025 return(error); 2026 2027#if 0 2028 ciss_print_request(cr); 2029#endif 2030 2031 return(0); 2032} 2033 2034/************************************************************************ 2035 * Fetch completed request(s) from the adapter, queue them for 2036 * completion handling. 2037 * 2038 * Note that this uses the simple transport layer directly. If we 2039 * want to add support for other layers, we'll need a switch of some 2040 * sort. 2041 * 2042 * Note that the simple transport mechanism does not require any 2043 * reentrancy protection; the OPQ read is atomic. If there is a 2044 * chance of a race with something else that might move the request 2045 * off the busy list, then we will have to lock against that 2046 * (eg. timeouts, etc.) 2047 */ 2048static void 2049ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2050{ 2051 struct ciss_request *cr; 2052 struct ciss_command *cc; 2053 u_int32_t tag, index; 2054 2055 debug_called(3); 2056 2057 /* 2058 * Loop quickly taking requests from the adapter and moving them 2059 * to the completed queue. 2060 */ 2061 for (;;) { 2062 2063 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2064 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2065 break; 2066 index = tag >> 2; 2067 debug(2, "completed command %d%s", index, 2068 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2069 if (index >= sc->ciss_max_requests) { 2070 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2071 continue; 2072 } 2073 cr = &(sc->ciss_request[index]); 2074 cc = cr->cr_cc; 2075 cc->header.host_tag = tag; /* not updated by adapter */ 2076 ciss_enqueue_complete(cr, qh); 2077 } 2078 2079} 2080 2081static void 2082ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2083{ 2084 struct ciss_request *cr; 2085 struct ciss_command *cc; 2086 u_int32_t tag, index; 2087 2088 debug_called(3); 2089 2090 /* 2091 * Loop quickly taking requests from the adapter and moving them 2092 * to the completed queue. 2093 */ 2094 for (;;) { 2095 tag = sc->ciss_reply[sc->ciss_rqidx]; 2096 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2097 break; 2098 index = tag >> 2; 2099 debug(2, "completed command %d%s\n", index, 2100 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2101 if (index < sc->ciss_max_requests) { 2102 cr = &(sc->ciss_request[index]); 2103 cc = cr->cr_cc; 2104 cc->header.host_tag = tag; /* not updated by adapter */ 2105 ciss_enqueue_complete(cr, qh); 2106 } else { 2107 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2108 } 2109 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2110 sc->ciss_rqidx = 0; 2111 sc->ciss_cycle ^= 1; 2112 } 2113 } 2114 2115} 2116 2117/************************************************************************ 2118 * Take an interrupt from the adapter. 2119 */ 2120static void 2121ciss_intr(void *arg) 2122{ 2123 cr_qhead_t qh; 2124 struct ciss_softc *sc = (struct ciss_softc *)arg; 2125 2126 /* 2127 * The only interrupt we recognise indicates that there are 2128 * entries in the outbound post queue. 2129 */ 2130 STAILQ_INIT(&qh); 2131 ciss_done(sc, &qh); 2132 mtx_lock(&sc->ciss_mtx); 2133 ciss_complete(sc, &qh); 2134 mtx_unlock(&sc->ciss_mtx); 2135} 2136 2137static void 2138ciss_perf_intr(void *arg) 2139{ 2140 struct ciss_softc *sc = (struct ciss_softc *)arg; 2141 2142 /* Clear the interrupt and flush the bridges. Docs say that the flush 2143 * needs to be done twice, which doesn't seem right. 2144 */ 2145 CISS_TL_PERF_CLEAR_INT(sc); 2146 CISS_TL_PERF_FLUSH_INT(sc); 2147 2148 ciss_perf_msi_intr(sc); 2149} 2150 2151static void 2152ciss_perf_msi_intr(void *arg) 2153{ 2154 cr_qhead_t qh; 2155 struct ciss_softc *sc = (struct ciss_softc *)arg; 2156 2157 STAILQ_INIT(&qh); 2158 ciss_perf_done(sc, &qh); 2159 mtx_lock(&sc->ciss_mtx); 2160 ciss_complete(sc, &qh); 2161 mtx_unlock(&sc->ciss_mtx); 2162} 2163 2164 2165/************************************************************************ 2166 * Process completed requests. 2167 * 2168 * Requests can be completed in three fashions: 2169 * 2170 * - by invoking a callback function (cr_complete is non-null) 2171 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2172 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2173 */ 2174static void 2175ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2176{ 2177 struct ciss_request *cr; 2178 2179 debug_called(2); 2180 2181 /* 2182 * Loop taking requests off the completed queue and performing 2183 * completion processing on them. 2184 */ 2185 for (;;) { 2186 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2187 break; 2188 ciss_unmap_request(cr); 2189 2190 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2191 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2192 cr->cr_flags &= ~CISS_REQ_BUSY; 2193 2194 /* 2195 * If the request has a callback, invoke it. 2196 */ 2197 if (cr->cr_complete != NULL) { 2198 cr->cr_complete(cr); 2199 continue; 2200 } 2201 2202 /* 2203 * If someone is sleeping on this request, wake them up. 2204 */ 2205 if (cr->cr_flags & CISS_REQ_SLEEP) { 2206 cr->cr_flags &= ~CISS_REQ_SLEEP; 2207 wakeup(cr); 2208 continue; 2209 } 2210 2211 /* 2212 * If someone is polling this request for completion, signal. 2213 */ 2214 if (cr->cr_flags & CISS_REQ_POLL) { 2215 cr->cr_flags &= ~CISS_REQ_POLL; 2216 continue; 2217 } 2218 2219 /* 2220 * Give up and throw the request back on the free queue. This 2221 * should never happen; resources will probably be lost. 2222 */ 2223 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2224 ciss_enqueue_free(cr); 2225 } 2226} 2227 2228/************************************************************************ 2229 * Report on the completion status of a request, and pass back SCSI 2230 * and command status values. 2231 */ 2232static int 2233_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2234{ 2235 struct ciss_command *cc; 2236 struct ciss_error_info *ce; 2237 2238 debug_called(2); 2239 2240 cc = cr->cr_cc; 2241 ce = (struct ciss_error_info *)&(cc->sg[0]); 2242 2243 /* 2244 * We don't consider data under/overrun an error for the Report 2245 * Logical/Physical LUNs commands. 2246 */ 2247 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2248 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2249 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2250 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2251 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2252 (cc->cdb.cdb[0] == INQUIRY))) { 2253 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2254 debug(2, "ignoring irrelevant under/overrun error"); 2255 } 2256 2257 /* 2258 * Check the command's error bit, if clear, there's no status and 2259 * everything is OK. 2260 */ 2261 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2262 if (scsi_status != NULL) 2263 *scsi_status = SCSI_STATUS_OK; 2264 if (command_status != NULL) 2265 *command_status = CISS_CMD_STATUS_SUCCESS; 2266 return(0); 2267 } else { 2268 if (command_status != NULL) 2269 *command_status = ce->command_status; 2270 if (scsi_status != NULL) { 2271 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2272 *scsi_status = ce->scsi_status; 2273 } else { 2274 *scsi_status = -1; 2275 } 2276 } 2277 if (bootverbose) 2278 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2279 ce->command_status, ciss_name_command_status(ce->command_status), 2280 ce->scsi_status); 2281 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2282 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2283 ce->additional_error_info.invalid_command.offense_size, 2284 ce->additional_error_info.invalid_command.offense_offset, 2285 ce->additional_error_info.invalid_command.offense_value, 2286 func); 2287 } 2288 } 2289#if 0 2290 ciss_print_request(cr); 2291#endif 2292 return(1); 2293} 2294 2295/************************************************************************ 2296 * Issue a request and don't return until it's completed. 2297 * 2298 * Depending on adapter status, we may poll or sleep waiting for 2299 * completion. 2300 */ 2301static int 2302ciss_synch_request(struct ciss_request *cr, int timeout) 2303{ 2304 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2305 return(ciss_wait_request(cr, timeout)); 2306 } else { 2307 return(ciss_poll_request(cr, timeout)); 2308 } 2309} 2310 2311/************************************************************************ 2312 * Issue a request and poll for completion. 2313 * 2314 * Timeout in milliseconds. 2315 */ 2316static int 2317ciss_poll_request(struct ciss_request *cr, int timeout) 2318{ 2319 cr_qhead_t qh; 2320 struct ciss_softc *sc; 2321 int error; 2322 2323 debug_called(2); 2324 2325 STAILQ_INIT(&qh); 2326 sc = cr->cr_sc; 2327 cr->cr_flags |= CISS_REQ_POLL; 2328 if ((error = ciss_start(cr)) != 0) 2329 return(error); 2330 2331 do { 2332 if (sc->ciss_perf) 2333 ciss_perf_done(sc, &qh); 2334 else 2335 ciss_done(sc, &qh); 2336 ciss_complete(sc, &qh); 2337 if (!(cr->cr_flags & CISS_REQ_POLL)) 2338 return(0); 2339 DELAY(1000); 2340 } while (timeout-- >= 0); 2341 return(EWOULDBLOCK); 2342} 2343 2344/************************************************************************ 2345 * Issue a request and sleep waiting for completion. 2346 * 2347 * Timeout in milliseconds. Note that a spurious wakeup will reset 2348 * the timeout. 2349 */ 2350static int 2351ciss_wait_request(struct ciss_request *cr, int timeout) 2352{ 2353 int error; 2354 2355 debug_called(2); 2356 2357 cr->cr_flags |= CISS_REQ_SLEEP; 2358 if ((error = ciss_start(cr)) != 0) 2359 return(error); 2360 2361 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2362 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2363 } 2364 return(error); 2365} 2366 2367#if 0 2368/************************************************************************ 2369 * Abort a request. Note that a potential exists here to race the 2370 * request being completed; the caller must deal with this. 2371 */ 2372static int 2373ciss_abort_request(struct ciss_request *ar) 2374{ 2375 struct ciss_request *cr; 2376 struct ciss_command *cc; 2377 struct ciss_message_cdb *cmc; 2378 int error; 2379 2380 debug_called(1); 2381 2382 /* get a request */ 2383 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2384 return(error); 2385 2386 /* build the abort command */ 2387 cc = cr->cr_cc; 2388 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2389 cc->header.address.physical.target = 0; 2390 cc->header.address.physical.bus = 0; 2391 cc->cdb.cdb_length = sizeof(*cmc); 2392 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2393 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2394 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2395 cc->cdb.timeout = 30; 2396 2397 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2398 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2399 cmc->type = CISS_MESSAGE_ABORT_TASK; 2400 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2401 2402 /* 2403 * Send the request and wait for a response. If we believe we 2404 * aborted the request OK, clear the flag that indicates it's 2405 * running. 2406 */ 2407 error = ciss_synch_request(cr, 35 * 1000); 2408 if (!error) 2409 error = ciss_report_request(cr, NULL, NULL); 2410 ciss_release_request(cr); 2411 2412 return(error); 2413} 2414#endif 2415 2416 2417/************************************************************************ 2418 * Fetch and initialise a request 2419 */ 2420static int 2421ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2422{ 2423 struct ciss_request *cr; 2424 2425 debug_called(2); 2426 2427 /* 2428 * Get a request and clean it up. 2429 */ 2430 if ((cr = ciss_dequeue_free(sc)) == NULL) 2431 return(ENOMEM); 2432 2433 cr->cr_data = NULL; 2434 cr->cr_flags = 0; 2435 cr->cr_complete = NULL; 2436 cr->cr_private = NULL; 2437 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2438 2439 ciss_preen_command(cr); 2440 *crp = cr; 2441 return(0); 2442} 2443 2444static void 2445ciss_preen_command(struct ciss_request *cr) 2446{ 2447 struct ciss_command *cc; 2448 u_int32_t cmdphys; 2449 2450 /* 2451 * Clean up the command structure. 2452 * 2453 * Note that we set up the error_info structure here, since the 2454 * length can be overwritten by any command. 2455 */ 2456 cc = cr->cr_cc; 2457 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2458 cc->header.sg_total = 0; 2459 cc->header.host_tag = cr->cr_tag << 2; 2460 cc->header.host_tag_zeroes = 0; 2461 cmdphys = cr->cr_ccphys; 2462 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2463 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2464} 2465 2466/************************************************************************ 2467 * Release a request to the free list. 2468 */ 2469static void 2470ciss_release_request(struct ciss_request *cr) 2471{ 2472 struct ciss_softc *sc; 2473 2474 debug_called(2); 2475 2476 sc = cr->cr_sc; 2477 2478 /* release the request to the free queue */ 2479 ciss_requeue_free(cr); 2480} 2481 2482/************************************************************************ 2483 * Allocate a request that will be used to send a BMIC command. Do some 2484 * of the common setup here to avoid duplicating it everywhere else. 2485 */ 2486static int 2487ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2488 int opcode, void **bufp, size_t bufsize) 2489{ 2490 struct ciss_request *cr; 2491 struct ciss_command *cc; 2492 struct ciss_bmic_cdb *cbc; 2493 void *buf; 2494 int error; 2495 int dataout; 2496 2497 debug_called(2); 2498 2499 cr = NULL; 2500 buf = NULL; 2501 2502 /* 2503 * Get a request. 2504 */ 2505 if ((error = ciss_get_request(sc, &cr)) != 0) 2506 goto out; 2507 2508 /* 2509 * Allocate data storage if requested, determine the data direction. 2510 */ 2511 dataout = 0; 2512 if ((bufsize > 0) && (bufp != NULL)) { 2513 if (*bufp == NULL) { 2514 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2515 error = ENOMEM; 2516 goto out; 2517 } 2518 } else { 2519 buf = *bufp; 2520 dataout = 1; /* we are given a buffer, so we are writing */ 2521 } 2522 } 2523 2524 /* 2525 * Build a CISS BMIC command to get the logical drive ID. 2526 */ 2527 cr->cr_data = buf; 2528 cr->cr_length = bufsize; 2529 if (!dataout) 2530 cr->cr_flags = CISS_REQ_DATAIN; 2531 2532 cc = cr->cr_cc; 2533 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2534 cc->header.address.physical.bus = 0; 2535 cc->header.address.physical.target = 0; 2536 cc->cdb.cdb_length = sizeof(*cbc); 2537 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2538 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2539 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2540 cc->cdb.timeout = 0; 2541 2542 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2543 bzero(cbc, sizeof(*cbc)); 2544 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2545 cbc->bmic_opcode = opcode; 2546 cbc->size = htons((u_int16_t)bufsize); 2547 2548out: 2549 if (error) { 2550 if (cr != NULL) 2551 ciss_release_request(cr); 2552 } else { 2553 *crp = cr; 2554 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2555 *bufp = buf; 2556 } 2557 return(error); 2558} 2559 2560/************************************************************************ 2561 * Handle a command passed in from userspace. 2562 */ 2563static int 2564ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2565{ 2566 struct ciss_request *cr; 2567 struct ciss_command *cc; 2568 struct ciss_error_info *ce; 2569 int error = 0; 2570 2571 debug_called(1); 2572 2573 cr = NULL; 2574 2575 /* 2576 * Get a request. 2577 */ 2578 while (ciss_get_request(sc, &cr) != 0) 2579 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2580 cc = cr->cr_cc; 2581 2582 /* 2583 * Allocate an in-kernel databuffer if required, copy in user data. 2584 */ 2585 mtx_unlock(&sc->ciss_mtx); 2586 cr->cr_length = ioc->buf_size; 2587 if (ioc->buf_size > 0) { 2588 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2589 error = ENOMEM; 2590 goto out_unlocked; 2591 } 2592 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2593 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2594 goto out_unlocked; 2595 } 2596 } 2597 2598 /* 2599 * Build the request based on the user command. 2600 */ 2601 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2602 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2603 2604 /* XXX anything else to populate here? */ 2605 mtx_lock(&sc->ciss_mtx); 2606 2607 /* 2608 * Run the command. 2609 */ 2610 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2611 debug(0, "request failed - %d", error); 2612 goto out; 2613 } 2614 2615 /* 2616 * Check to see if the command succeeded. 2617 */ 2618 ce = (struct ciss_error_info *)&(cc->sg[0]); 2619 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2620 bzero(ce, sizeof(*ce)); 2621 2622 /* 2623 * Copy the results back to the user. 2624 */ 2625 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2626 mtx_unlock(&sc->ciss_mtx); 2627 if ((ioc->buf_size > 0) && 2628 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2629 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2630 goto out_unlocked; 2631 } 2632 2633 /* done OK */ 2634 error = 0; 2635 2636out_unlocked: 2637 mtx_lock(&sc->ciss_mtx); 2638 2639out: 2640 if ((cr != NULL) && (cr->cr_data != NULL)) 2641 free(cr->cr_data, CISS_MALLOC_CLASS); 2642 if (cr != NULL) 2643 ciss_release_request(cr); 2644 return(error); 2645} 2646 2647/************************************************************************ 2648 * Map a request into bus-visible space, initialise the scatter/gather 2649 * list. 2650 */ 2651static int 2652ciss_map_request(struct ciss_request *cr) 2653{ 2654 struct ciss_softc *sc; 2655 int error = 0; 2656 2657 debug_called(2); 2658 2659 sc = cr->cr_sc; 2660 2661 /* check that mapping is necessary */ 2662 if (cr->cr_flags & CISS_REQ_MAPPED) 2663 return(0); 2664 2665 cr->cr_flags |= CISS_REQ_MAPPED; 2666 2667 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2668 BUS_DMASYNC_PREWRITE); 2669 2670 if (cr->cr_data != NULL) { 2671 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2672 cr->cr_data, cr->cr_length, 2673 ciss_request_map_helper, cr, 0); 2674 if (error != 0) 2675 return (error); 2676 } else { 2677 /* 2678 * Post the command to the adapter. 2679 */ 2680 cr->cr_sg_tag = CISS_SG_NONE; 2681 cr->cr_flags |= CISS_REQ_BUSY; 2682 if (sc->ciss_perf) 2683 CISS_TL_PERF_POST_CMD(sc, cr); 2684 else 2685 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2686 } 2687 2688 return(0); 2689} 2690 2691static void 2692ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2693{ 2694 struct ciss_command *cc; 2695 struct ciss_request *cr; 2696 struct ciss_softc *sc; 2697 int i; 2698 2699 debug_called(2); 2700 2701 cr = (struct ciss_request *)arg; 2702 sc = cr->cr_sc; 2703 cc = cr->cr_cc; 2704 2705 for (i = 0; i < nseg; i++) { 2706 cc->sg[i].address = segs[i].ds_addr; 2707 cc->sg[i].length = segs[i].ds_len; 2708 cc->sg[i].extension = 0; 2709 } 2710 /* we leave the s/g table entirely within the command */ 2711 cc->header.sg_in_list = nseg; 2712 cc->header.sg_total = nseg; 2713 2714 if (cr->cr_flags & CISS_REQ_DATAIN) 2715 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2716 if (cr->cr_flags & CISS_REQ_DATAOUT) 2717 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2718 2719 if (nseg == 0) 2720 cr->cr_sg_tag = CISS_SG_NONE; 2721 else if (nseg == 1) 2722 cr->cr_sg_tag = CISS_SG_1; 2723 else if (nseg == 2) 2724 cr->cr_sg_tag = CISS_SG_2; 2725 else if (nseg <= 4) 2726 cr->cr_sg_tag = CISS_SG_4; 2727 else if (nseg <= 8) 2728 cr->cr_sg_tag = CISS_SG_8; 2729 else if (nseg <= 16) 2730 cr->cr_sg_tag = CISS_SG_16; 2731 else if (nseg <= 32) 2732 cr->cr_sg_tag = CISS_SG_32; 2733 else 2734 cr->cr_sg_tag = CISS_SG_MAX; 2735 2736 /* 2737 * Post the command to the adapter. 2738 */ 2739 cr->cr_flags |= CISS_REQ_BUSY; 2740 if (sc->ciss_perf) 2741 CISS_TL_PERF_POST_CMD(sc, cr); 2742 else 2743 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2744} 2745 2746/************************************************************************ 2747 * Unmap a request from bus-visible space. 2748 */ 2749static void 2750ciss_unmap_request(struct ciss_request *cr) 2751{ 2752 struct ciss_softc *sc; 2753 2754 debug_called(2); 2755 2756 sc = cr->cr_sc; 2757 2758 /* check that unmapping is necessary */ 2759 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2760 return; 2761 2762 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2763 BUS_DMASYNC_POSTWRITE); 2764 2765 if (cr->cr_data == NULL) 2766 goto out; 2767 2768 if (cr->cr_flags & CISS_REQ_DATAIN) 2769 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2770 if (cr->cr_flags & CISS_REQ_DATAOUT) 2771 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2772 2773 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2774out: 2775 cr->cr_flags &= ~CISS_REQ_MAPPED; 2776} 2777 2778/************************************************************************ 2779 * Attach the driver to CAM. 2780 * 2781 * We put all the logical drives on a single SCSI bus. 2782 */ 2783static int 2784ciss_cam_init(struct ciss_softc *sc) 2785{ 2786 int i, maxbus; 2787 2788 debug_called(1); 2789 2790 /* 2791 * Allocate a devq. We can reuse this for the masked physical 2792 * devices if we decide to export these as well. 2793 */ 2794 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2795 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2796 return(ENOMEM); 2797 } 2798 2799 /* 2800 * Create a SIM. 2801 * 2802 * This naturally wastes a bit of memory. The alternative is to allocate 2803 * and register each bus as it is found, and then track them on a linked 2804 * list. Unfortunately, the driver has a few places where it needs to 2805 * look up the SIM based solely on bus number, and it's unclear whether 2806 * a list traversal would work for these situations. 2807 */ 2808 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2809 CISS_PHYSICAL_BASE); 2810 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2811 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2812 if (sc->ciss_cam_sim == NULL) { 2813 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2814 return(ENOMEM); 2815 } 2816 2817 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2818 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2819 "ciss", sc, 2820 device_get_unit(sc->ciss_dev), 2821 &sc->ciss_mtx, 2822 2, 2823 sc->ciss_max_requests - 2, 2824 sc->ciss_cam_devq)) == NULL) { 2825 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2826 return(ENOMEM); 2827 } 2828 2829 /* 2830 * Register bus with this SIM. 2831 */ 2832 mtx_lock(&sc->ciss_mtx); 2833 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2834 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2835 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2836 mtx_unlock(&sc->ciss_mtx); 2837 return (ENXIO); 2838 } 2839 } 2840 mtx_unlock(&sc->ciss_mtx); 2841 } 2842 2843 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2844 CISS_PHYSICAL_BASE; i++) { 2845 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2846 "ciss", sc, 2847 device_get_unit(sc->ciss_dev), 2848 &sc->ciss_mtx, 1, 2849 sc->ciss_max_requests - 2, 2850 sc->ciss_cam_devq)) == NULL) { 2851 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2852 return (ENOMEM); 2853 } 2854 2855 mtx_lock(&sc->ciss_mtx); 2856 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2857 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2858 mtx_unlock(&sc->ciss_mtx); 2859 return (ENXIO); 2860 } 2861 mtx_unlock(&sc->ciss_mtx); 2862 } 2863 2864 return(0); 2865} 2866 2867/************************************************************************ 2868 * Initiate a rescan of the 'logical devices' SIM 2869 */ 2870static void 2871ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2872{ 2873 union ccb *ccb; 2874 2875 debug_called(1); 2876 2877 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2878 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2879 return; 2880 } 2881 2882 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2883 cam_sim_path(sc->ciss_cam_sim[bus]), 2884 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2885 ciss_printf(sc, "rescan failed (can't create path)\n"); 2886 xpt_free_ccb(ccb); 2887 return; 2888 } 2889 xpt_rescan(ccb); 2890 /* scan is now in progress */ 2891} 2892 2893/************************************************************************ 2894 * Handle requests coming from CAM 2895 */ 2896static void 2897ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2898{ 2899 struct ciss_softc *sc; 2900 struct ccb_scsiio *csio; 2901 int bus, target; 2902 int physical; 2903 2904 sc = cam_sim_softc(sim); 2905 bus = cam_sim_bus(sim); 2906 csio = (struct ccb_scsiio *)&ccb->csio; 2907 target = csio->ccb_h.target_id; 2908 physical = CISS_IS_PHYSICAL(bus); 2909 2910 switch (ccb->ccb_h.func_code) { 2911 2912 /* perform SCSI I/O */ 2913 case XPT_SCSI_IO: 2914 if (!ciss_cam_action_io(sim, csio)) 2915 return; 2916 break; 2917 2918 /* perform geometry calculations */ 2919 case XPT_CALC_GEOMETRY: 2920 { 2921 struct ccb_calc_geometry *ccg = &ccb->ccg; 2922 struct ciss_ldrive *ld; 2923 2924 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2925 2926 ld = NULL; 2927 if (!physical) 2928 ld = &sc->ciss_logical[bus][target]; 2929 2930 /* 2931 * Use the cached geometry settings unless the fault tolerance 2932 * is invalid. 2933 */ 2934 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2935 u_int32_t secs_per_cylinder; 2936 2937 ccg->heads = 255; 2938 ccg->secs_per_track = 32; 2939 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2940 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2941 } else { 2942 ccg->heads = ld->cl_geometry.heads; 2943 ccg->secs_per_track = ld->cl_geometry.sectors; 2944 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2945 } 2946 ccb->ccb_h.status = CAM_REQ_CMP; 2947 break; 2948 } 2949 2950 /* handle path attribute inquiry */ 2951 case XPT_PATH_INQ: 2952 { 2953 struct ccb_pathinq *cpi = &ccb->cpi; 2954 2955 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2956 2957 cpi->version_num = 1; 2958 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2959 cpi->target_sprt = 0; 2960 cpi->hba_misc = 0; 2961 cpi->max_target = CISS_MAX_LOGICAL; 2962 cpi->max_lun = 0; /* 'logical drive' channel only */ 2963 cpi->initiator_id = CISS_MAX_LOGICAL; 2964 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2965 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2966 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2967 cpi->unit_number = cam_sim_unit(sim); 2968 cpi->bus_id = cam_sim_bus(sim); 2969 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2970 cpi->transport = XPORT_SPI; 2971 cpi->transport_version = 2; 2972 cpi->protocol = PROTO_SCSI; 2973 cpi->protocol_version = SCSI_REV_2; 2974 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2975 ccb->ccb_h.status = CAM_REQ_CMP; 2976 break; 2977 } 2978 2979 case XPT_GET_TRAN_SETTINGS: 2980 { 2981 struct ccb_trans_settings *cts = &ccb->cts; 2982 int bus, target; 2983 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2984 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2985 2986 bus = cam_sim_bus(sim); 2987 target = cts->ccb_h.target_id; 2988 2989 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2990 /* disconnect always OK */ 2991 cts->protocol = PROTO_SCSI; 2992 cts->protocol_version = SCSI_REV_2; 2993 cts->transport = XPORT_SPI; 2994 cts->transport_version = 2; 2995 2996 spi->valid = CTS_SPI_VALID_DISC; 2997 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2998 2999 scsi->valid = CTS_SCSI_VALID_TQ; 3000 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3001 3002 cts->ccb_h.status = CAM_REQ_CMP; 3003 break; 3004 } 3005 3006 default: /* we can't do this */ 3007 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3008 ccb->ccb_h.status = CAM_REQ_INVALID; 3009 break; 3010 } 3011 3012 xpt_done(ccb); 3013} 3014 3015/************************************************************************ 3016 * Handle a CAM SCSI I/O request. 3017 */ 3018static int 3019ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3020{ 3021 struct ciss_softc *sc; 3022 int bus, target; 3023 struct ciss_request *cr; 3024 struct ciss_command *cc; 3025 int error; 3026 3027 sc = cam_sim_softc(sim); 3028 bus = cam_sim_bus(sim); 3029 target = csio->ccb_h.target_id; 3030 3031 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3032 3033 /* check that the CDB pointer is not to a physical address */ 3034 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3035 debug(3, " CDB pointer is to physical address"); 3036 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3037 } 3038 3039 /* if there is data transfer, it must be to/from a virtual address */ 3040 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3041 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3042 debug(3, " data pointer is to physical address"); 3043 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3044 } 3045 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3046 debug(3, " data has premature s/g setup"); 3047 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3048 } 3049 } 3050 3051 /* abandon aborted ccbs or those that have failed validation */ 3052 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3053 debug(3, "abandoning CCB due to abort/validation failure"); 3054 return(EINVAL); 3055 } 3056 3057 /* handle emulation of some SCSI commands ourself */ 3058 if (ciss_cam_emulate(sc, csio)) 3059 return(0); 3060 3061 /* 3062 * Get a request to manage this command. If we can't, return the 3063 * ccb, freeze the queue and flag so that we unfreeze it when a 3064 * request completes. 3065 */ 3066 if ((error = ciss_get_request(sc, &cr)) != 0) { 3067 xpt_freeze_simq(sim, 1); 3068 sc->ciss_flags |= CISS_FLAG_BUSY; 3069 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3070 return(error); 3071 } 3072 3073 /* 3074 * Build the command. 3075 */ 3076 cc = cr->cr_cc; 3077 cr->cr_data = csio->data_ptr; 3078 cr->cr_length = csio->dxfer_len; 3079 cr->cr_complete = ciss_cam_complete; 3080 cr->cr_private = csio; 3081 3082 /* 3083 * Target the right logical volume. 3084 */ 3085 if (CISS_IS_PHYSICAL(bus)) 3086 cc->header.address = 3087 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3088 else 3089 cc->header.address = 3090 sc->ciss_logical[bus][target].cl_address; 3091 cc->cdb.cdb_length = csio->cdb_len; 3092 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3093 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3094 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3095 cr->cr_flags = CISS_REQ_DATAOUT; 3096 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3097 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3098 cr->cr_flags = CISS_REQ_DATAIN; 3099 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3100 } else { 3101 cr->cr_flags = 0; 3102 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3103 } 3104 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3105 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3106 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3107 } else { 3108 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3109 } 3110 3111 /* 3112 * Submit the request to the adapter. 3113 * 3114 * Note that this may fail if we're unable to map the request (and 3115 * if we ever learn a transport layer other than simple, may fail 3116 * if the adapter rejects the command). 3117 */ 3118 if ((error = ciss_start(cr)) != 0) { 3119 xpt_freeze_simq(sim, 1); 3120 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3121 if (error == EINPROGRESS) { 3122 error = 0; 3123 } else { 3124 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3125 ciss_release_request(cr); 3126 } 3127 return(error); 3128 } 3129 3130 return(0); 3131} 3132 3133/************************************************************************ 3134 * Emulate SCSI commands the adapter doesn't handle as we might like. 3135 */ 3136static int 3137ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3138{ 3139 int bus, target; 3140 u_int8_t opcode; 3141 3142 target = csio->ccb_h.target_id; 3143 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3144 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3145 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3146 3147 if (CISS_IS_PHYSICAL(bus)) { 3148 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3149 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3150 xpt_done((union ccb *)csio); 3151 return(1); 3152 } else 3153 return(0); 3154 } 3155 3156 /* 3157 * Handle requests for volumes that don't exist or are not online. 3158 * A selection timeout is slightly better than an illegal request. 3159 * Other errors might be better. 3160 */ 3161 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3162 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3163 xpt_done((union ccb *)csio); 3164 return(1); 3165 } 3166 3167 /* if we have to fake Synchronise Cache */ 3168 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3169 /* 3170 * If this is a Synchronise Cache command, typically issued when 3171 * a device is closed, flush the adapter and complete now. 3172 */ 3173 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3174 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3175 ciss_flush_adapter(sc); 3176 csio->ccb_h.status |= CAM_REQ_CMP; 3177 xpt_done((union ccb *)csio); 3178 return(1); 3179 } 3180 } 3181 3182 return(0); 3183} 3184 3185/************************************************************************ 3186 * Check for possibly-completed commands. 3187 */ 3188static void 3189ciss_cam_poll(struct cam_sim *sim) 3190{ 3191 cr_qhead_t qh; 3192 struct ciss_softc *sc = cam_sim_softc(sim); 3193 3194 debug_called(2); 3195 3196 STAILQ_INIT(&qh); 3197 if (sc->ciss_perf) 3198 ciss_perf_done(sc, &qh); 3199 else 3200 ciss_done(sc, &qh); 3201 ciss_complete(sc, &qh); 3202} 3203 3204/************************************************************************ 3205 * Handle completion of a command - pass results back through the CCB 3206 */ 3207static void 3208ciss_cam_complete(struct ciss_request *cr) 3209{ 3210 struct ciss_softc *sc; 3211 struct ciss_command *cc; 3212 struct ciss_error_info *ce; 3213 struct ccb_scsiio *csio; 3214 int scsi_status; 3215 int command_status; 3216 3217 debug_called(2); 3218 3219 sc = cr->cr_sc; 3220 cc = cr->cr_cc; 3221 ce = (struct ciss_error_info *)&(cc->sg[0]); 3222 csio = (struct ccb_scsiio *)cr->cr_private; 3223 3224 /* 3225 * Extract status values from request. 3226 */ 3227 ciss_report_request(cr, &command_status, &scsi_status); 3228 csio->scsi_status = scsi_status; 3229 3230 /* 3231 * Handle specific SCSI status values. 3232 */ 3233 switch(scsi_status) { 3234 /* no status due to adapter error */ 3235 case -1: 3236 debug(0, "adapter error"); 3237 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3238 break; 3239 3240 /* no status due to command completed OK */ 3241 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3242 debug(2, "SCSI_STATUS_OK"); 3243 csio->ccb_h.status |= CAM_REQ_CMP; 3244 break; 3245 3246 /* check condition, sense data included */ 3247 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3248 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3249 ce->sense_length, ce->residual_count); 3250 bzero(&csio->sense_data, SSD_FULL_SIZE); 3251 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3252 csio->sense_len = ce->sense_length; 3253 csio->resid = ce->residual_count; 3254 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3255#ifdef CISS_DEBUG 3256 { 3257 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3258 debug(0, "sense key %x", sns->flags & SSD_KEY); 3259 } 3260#endif 3261 break; 3262 3263 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3264 debug(0, "SCSI_STATUS_BUSY"); 3265 csio->ccb_h.status |= CAM_SCSI_BUSY; 3266 break; 3267 3268 default: 3269 debug(0, "unknown status 0x%x", csio->scsi_status); 3270 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3271 break; 3272 } 3273 3274 /* handle post-command fixup */ 3275 ciss_cam_complete_fixup(sc, csio); 3276 3277 ciss_release_request(cr); 3278 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3279 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3280 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3281 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3282 else 3283 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3284 } 3285 xpt_done((union ccb *)csio); 3286} 3287 3288/******************************************************************************** 3289 * Fix up the result of some commands here. 3290 */ 3291static void 3292ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3293{ 3294 struct scsi_inquiry_data *inq; 3295 struct ciss_ldrive *cl; 3296 uint8_t *cdb; 3297 int bus, target; 3298 3299 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3300 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3301 if (cdb[0] == INQUIRY && 3302 (cdb[1] & SI_EVPD) == 0 && 3303 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3304 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3305 3306 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3307 target = csio->ccb_h.target_id; 3308 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3309 3310 /* 3311 * Don't let hard drives be seen by the DA driver. They will still be 3312 * attached by the PASS driver. 3313 */ 3314 if (CISS_IS_PHYSICAL(bus)) { 3315 if (SID_TYPE(inq) == T_DIRECT) 3316 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3317 return; 3318 } 3319 3320 cl = &sc->ciss_logical[bus][target]; 3321 3322 padstr(inq->vendor, "COMPAQ", 8); 3323 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3324 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3325 } 3326} 3327 3328 3329/******************************************************************************** 3330 * Find a peripheral attached at (target) 3331 */ 3332static struct cam_periph * 3333ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3334{ 3335 struct cam_periph *periph; 3336 struct cam_path *path; 3337 int status; 3338 3339 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3340 target, 0); 3341 if (status == CAM_REQ_CMP) { 3342 periph = cam_periph_find(path, NULL); 3343 xpt_free_path(path); 3344 } else { 3345 periph = NULL; 3346 } 3347 return(periph); 3348} 3349 3350/******************************************************************************** 3351 * Name the device at (target) 3352 * 3353 * XXX is this strictly correct? 3354 */ 3355static int 3356ciss_name_device(struct ciss_softc *sc, int bus, int target) 3357{ 3358 struct cam_periph *periph; 3359 3360 if (CISS_IS_PHYSICAL(bus)) 3361 return (0); 3362 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3363 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3364 periph->periph_name, periph->unit_number); 3365 return(0); 3366 } 3367 sc->ciss_logical[bus][target].cl_name[0] = 0; 3368 return(ENOENT); 3369} 3370 3371/************************************************************************ 3372 * Periodic status monitoring. 3373 */ 3374static void 3375ciss_periodic(void *arg) 3376{ 3377 struct ciss_softc *sc; 3378 struct ciss_request *cr = NULL; 3379 struct ciss_command *cc = NULL; 3380 int error = 0; 3381 3382 debug_called(1); 3383 3384 sc = (struct ciss_softc *)arg; 3385 3386 /* 3387 * Check the adapter heartbeat. 3388 */ 3389 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3390 sc->ciss_heart_attack++; 3391 debug(0, "adapter heart attack in progress 0x%x/%d", 3392 sc->ciss_heartbeat, sc->ciss_heart_attack); 3393 if (sc->ciss_heart_attack == 3) { 3394 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3395 ciss_disable_adapter(sc); 3396 return; 3397 } 3398 } else { 3399 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3400 sc->ciss_heart_attack = 0; 3401 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3402 } 3403 3404 /* 3405 * Send the NOP message and wait for a response. 3406 */ 3407 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3408 cc = cr->cr_cc; 3409 cr->cr_complete = ciss_nop_complete; 3410 cc->cdb.cdb_length = 1; 3411 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3412 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3413 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3414 cc->cdb.timeout = 0; 3415 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3416 3417 if ((error = ciss_start(cr)) != 0) { 3418 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3419 } 3420 } 3421 3422 /* 3423 * If the notify event request has died for some reason, or has 3424 * not started yet, restart it. 3425 */ 3426 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3427 debug(0, "(re)starting Event Notify chain"); 3428 ciss_notify_event(sc); 3429 } 3430 3431 /* 3432 * Reschedule. 3433 */ 3434 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3435} 3436 3437static void 3438ciss_nop_complete(struct ciss_request *cr) 3439{ 3440 struct ciss_softc *sc; 3441 static int first_time = 1; 3442 3443 sc = cr->cr_sc; 3444 if (ciss_report_request(cr, NULL, NULL) != 0) { 3445 if (first_time == 1) { 3446 first_time = 0; 3447 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3448 } 3449 } 3450 3451 ciss_release_request(cr); 3452} 3453 3454/************************************************************************ 3455 * Disable the adapter. 3456 * 3457 * The all requests in completed queue is failed with hardware error. 3458 * This will cause failover in a multipath configuration. 3459 */ 3460static void 3461ciss_disable_adapter(struct ciss_softc *sc) 3462{ 3463 cr_qhead_t qh; 3464 struct ciss_request *cr; 3465 struct ciss_command *cc; 3466 struct ciss_error_info *ce; 3467 int i; 3468 3469 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3470 pci_disable_busmaster(sc->ciss_dev); 3471 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3472 3473 for (i = 1; i < sc->ciss_max_requests; i++) { 3474 cr = &sc->ciss_request[i]; 3475 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3476 continue; 3477 3478 cc = cr->cr_cc; 3479 ce = (struct ciss_error_info *)&(cc->sg[0]); 3480 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3481 ciss_enqueue_complete(cr, &qh); 3482 } 3483 3484 for (;;) { 3485 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3486 break; 3487 3488 /* 3489 * If the request has a callback, invoke it. 3490 */ 3491 if (cr->cr_complete != NULL) { 3492 cr->cr_complete(cr); 3493 continue; 3494 } 3495 3496 /* 3497 * If someone is sleeping on this request, wake them up. 3498 */ 3499 if (cr->cr_flags & CISS_REQ_SLEEP) { 3500 cr->cr_flags &= ~CISS_REQ_SLEEP; 3501 wakeup(cr); 3502 continue; 3503 } 3504 } 3505} 3506 3507/************************************************************************ 3508 * Request a notification response from the adapter. 3509 * 3510 * If (cr) is NULL, this is the first request of the adapter, so 3511 * reset the adapter's message pointer and start with the oldest 3512 * message available. 3513 */ 3514static void 3515ciss_notify_event(struct ciss_softc *sc) 3516{ 3517 struct ciss_request *cr; 3518 struct ciss_command *cc; 3519 struct ciss_notify_cdb *cnc; 3520 int error; 3521 3522 debug_called(1); 3523 3524 cr = sc->ciss_periodic_notify; 3525 3526 /* get a request if we don't already have one */ 3527 if (cr == NULL) { 3528 if ((error = ciss_get_request(sc, &cr)) != 0) { 3529 debug(0, "can't get notify event request"); 3530 goto out; 3531 } 3532 sc->ciss_periodic_notify = cr; 3533 cr->cr_complete = ciss_notify_complete; 3534 debug(1, "acquired request %d", cr->cr_tag); 3535 } 3536 3537 /* 3538 * Get a databuffer if we don't already have one, note that the 3539 * adapter command wants a larger buffer than the actual 3540 * structure. 3541 */ 3542 if (cr->cr_data == NULL) { 3543 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3544 debug(0, "can't get notify event request buffer"); 3545 error = ENOMEM; 3546 goto out; 3547 } 3548 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3549 } 3550 3551 /* re-setup the request's command (since we never release it) XXX overkill*/ 3552 ciss_preen_command(cr); 3553 3554 /* (re)build the notify event command */ 3555 cc = cr->cr_cc; 3556 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3557 cc->header.address.physical.bus = 0; 3558 cc->header.address.physical.target = 0; 3559 3560 cc->cdb.cdb_length = sizeof(*cnc); 3561 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3562 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3563 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3564 cc->cdb.timeout = 0; /* no timeout, we hope */ 3565 3566 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3567 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3568 cnc->opcode = CISS_OPCODE_READ; 3569 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3570 cnc->timeout = 0; /* no timeout, we hope */ 3571 cnc->synchronous = 0; 3572 cnc->ordered = 0; 3573 cnc->seek_to_oldest = 0; 3574 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3575 cnc->new_only = 1; 3576 else 3577 cnc->new_only = 0; 3578 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3579 3580 /* submit the request */ 3581 error = ciss_start(cr); 3582 3583 out: 3584 if (error) { 3585 if (cr != NULL) { 3586 if (cr->cr_data != NULL) 3587 free(cr->cr_data, CISS_MALLOC_CLASS); 3588 ciss_release_request(cr); 3589 } 3590 sc->ciss_periodic_notify = NULL; 3591 debug(0, "can't submit notify event request"); 3592 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3593 } else { 3594 debug(1, "notify event submitted"); 3595 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3596 } 3597} 3598 3599static void 3600ciss_notify_complete(struct ciss_request *cr) 3601{ 3602 struct ciss_command *cc; 3603 struct ciss_notify *cn; 3604 struct ciss_softc *sc; 3605 int scsi_status; 3606 int command_status; 3607 debug_called(1); 3608 3609 cc = cr->cr_cc; 3610 cn = (struct ciss_notify *)cr->cr_data; 3611 sc = cr->cr_sc; 3612 3613 /* 3614 * Report request results, decode status. 3615 */ 3616 ciss_report_request(cr, &command_status, &scsi_status); 3617 3618 /* 3619 * Abort the chain on a fatal error. 3620 * 3621 * XXX which of these are actually errors? 3622 */ 3623 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3624 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3625 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3626 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3627 ciss_name_command_status(command_status)); 3628 ciss_release_request(cr); 3629 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3630 return; 3631 } 3632 3633 /* 3634 * If the adapter gave us a text message, print it. 3635 */ 3636 if (cn->message[0] != 0) 3637 ciss_printf(sc, "*** %.80s\n", cn->message); 3638 3639 debug(0, "notify event class %d subclass %d detail %d", 3640 cn->class, cn->subclass, cn->detail); 3641 3642 /* 3643 * If the response indicates that the notifier has been aborted, 3644 * release the notifier command. 3645 */ 3646 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3647 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3648 (cn->detail == 1)) { 3649 debug(0, "notifier exiting"); 3650 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3651 ciss_release_request(cr); 3652 sc->ciss_periodic_notify = NULL; 3653 wakeup(&sc->ciss_periodic_notify); 3654 } else { 3655 /* Handle notify events in a kernel thread */ 3656 ciss_enqueue_notify(cr); 3657 sc->ciss_periodic_notify = NULL; 3658 wakeup(&sc->ciss_periodic_notify); 3659 wakeup(&sc->ciss_notify); 3660 } 3661 /* 3662 * Send a new notify event command, if we're not aborting. 3663 */ 3664 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3665 ciss_notify_event(sc); 3666 } 3667} 3668 3669/************************************************************************ 3670 * Abort the Notify Event chain. 3671 * 3672 * Note that we can't just abort the command in progress; we have to 3673 * explicitly issue an Abort Notify Event command in order for the 3674 * adapter to clean up correctly. 3675 * 3676 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3677 * the chain will not restart itself. 3678 */ 3679static int 3680ciss_notify_abort(struct ciss_softc *sc) 3681{ 3682 struct ciss_request *cr; 3683 struct ciss_command *cc; 3684 struct ciss_notify_cdb *cnc; 3685 int error, command_status, scsi_status; 3686 3687 debug_called(1); 3688 3689 cr = NULL; 3690 error = 0; 3691 3692 /* verify that there's an outstanding command */ 3693 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3694 goto out; 3695 3696 /* get a command to issue the abort with */ 3697 if ((error = ciss_get_request(sc, &cr))) 3698 goto out; 3699 3700 /* get a buffer for the result */ 3701 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3702 debug(0, "can't get notify event request buffer"); 3703 error = ENOMEM; 3704 goto out; 3705 } 3706 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3707 3708 /* build the CDB */ 3709 cc = cr->cr_cc; 3710 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3711 cc->header.address.physical.bus = 0; 3712 cc->header.address.physical.target = 0; 3713 cc->cdb.cdb_length = sizeof(*cnc); 3714 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3715 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3716 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3717 cc->cdb.timeout = 0; /* no timeout, we hope */ 3718 3719 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3720 bzero(cnc, sizeof(*cnc)); 3721 cnc->opcode = CISS_OPCODE_WRITE; 3722 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3723 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3724 3725 ciss_print_request(cr); 3726 3727 /* 3728 * Submit the request and wait for it to complete. 3729 */ 3730 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3731 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3732 goto out; 3733 } 3734 3735 /* 3736 * Check response. 3737 */ 3738 ciss_report_request(cr, &command_status, &scsi_status); 3739 switch(command_status) { 3740 case CISS_CMD_STATUS_SUCCESS: 3741 break; 3742 case CISS_CMD_STATUS_INVALID_COMMAND: 3743 /* 3744 * Some older adapters don't support the CISS version of this 3745 * command. Fall back to using the BMIC version. 3746 */ 3747 error = ciss_notify_abort_bmic(sc); 3748 if (error != 0) 3749 goto out; 3750 break; 3751 3752 case CISS_CMD_STATUS_TARGET_STATUS: 3753 /* 3754 * This can happen if the adapter thinks there wasn't an outstanding 3755 * Notify Event command but we did. We clean up here. 3756 */ 3757 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3758 if (sc->ciss_periodic_notify != NULL) 3759 ciss_release_request(sc->ciss_periodic_notify); 3760 error = 0; 3761 goto out; 3762 } 3763 /* FALLTHROUGH */ 3764 3765 default: 3766 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3767 ciss_name_command_status(command_status)); 3768 error = EIO; 3769 goto out; 3770 } 3771 3772 /* 3773 * Sleep waiting for the notifier command to complete. Note 3774 * that if it doesn't, we may end up in a bad situation, since 3775 * the adapter may deliver it later. Also note that the adapter 3776 * requires the Notify Event command to be cancelled in order to 3777 * maintain internal bookkeeping. 3778 */ 3779 while (sc->ciss_periodic_notify != NULL) { 3780 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3781 if (error == EWOULDBLOCK) { 3782 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3783 break; 3784 } 3785 } 3786 3787 out: 3788 /* release the cancel request */ 3789 if (cr != NULL) { 3790 if (cr->cr_data != NULL) 3791 free(cr->cr_data, CISS_MALLOC_CLASS); 3792 ciss_release_request(cr); 3793 } 3794 if (error == 0) 3795 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3796 return(error); 3797} 3798 3799/************************************************************************ 3800 * Abort the Notify Event chain using a BMIC command. 3801 */ 3802static int 3803ciss_notify_abort_bmic(struct ciss_softc *sc) 3804{ 3805 struct ciss_request *cr; 3806 int error, command_status; 3807 3808 debug_called(1); 3809 3810 cr = NULL; 3811 error = 0; 3812 3813 /* verify that there's an outstanding command */ 3814 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3815 goto out; 3816 3817 /* 3818 * Build a BMIC command to cancel the Notify on Event command. 3819 * 3820 * Note that we are sending a CISS opcode here. Odd. 3821 */ 3822 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3823 NULL, 0)) != 0) 3824 goto out; 3825 3826 /* 3827 * Submit the request and wait for it to complete. 3828 */ 3829 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3830 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3831 goto out; 3832 } 3833 3834 /* 3835 * Check response. 3836 */ 3837 ciss_report_request(cr, &command_status, NULL); 3838 switch(command_status) { 3839 case CISS_CMD_STATUS_SUCCESS: 3840 break; 3841 default: 3842 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3843 ciss_name_command_status(command_status)); 3844 error = EIO; 3845 goto out; 3846 } 3847 3848out: 3849 if (cr != NULL) 3850 ciss_release_request(cr); 3851 return(error); 3852} 3853 3854/************************************************************************ 3855 * Handle rescanning all the logical volumes when a notify event 3856 * causes the drives to come online or offline. 3857 */ 3858static void 3859ciss_notify_rescan_logical(struct ciss_softc *sc) 3860{ 3861 struct ciss_lun_report *cll; 3862 struct ciss_ldrive *ld; 3863 int i, j, ndrives; 3864 3865 /* 3866 * We must rescan all logical volumes to get the right logical 3867 * drive address. 3868 */ 3869 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3870 CISS_MAX_LOGICAL); 3871 if (cll == NULL) 3872 return; 3873 3874 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3875 3876 /* 3877 * Delete any of the drives which were destroyed by the 3878 * firmware. 3879 */ 3880 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3881 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3882 ld = &sc->ciss_logical[i][j]; 3883 3884 if (ld->cl_update == 0) 3885 continue; 3886 3887 if (ld->cl_status != CISS_LD_ONLINE) { 3888 ciss_cam_rescan_target(sc, i, j); 3889 ld->cl_update = 0; 3890 if (ld->cl_ldrive) 3891 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3892 if (ld->cl_lstatus) 3893 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3894 3895 ld->cl_ldrive = NULL; 3896 ld->cl_lstatus = NULL; 3897 } 3898 } 3899 } 3900 3901 /* 3902 * Scan for new drives. 3903 */ 3904 for (i = 0; i < ndrives; i++) { 3905 int bus, target; 3906 3907 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3908 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3909 ld = &sc->ciss_logical[bus][target]; 3910 3911 if (ld->cl_update == 0) 3912 continue; 3913 3914 ld->cl_update = 0; 3915 ld->cl_address = cll->lun[i]; 3916 ld->cl_controller = &sc->ciss_controllers[bus]; 3917 if (ciss_identify_logical(sc, ld) == 0) { 3918 ciss_cam_rescan_target(sc, bus, target); 3919 } 3920 } 3921 free(cll, CISS_MALLOC_CLASS); 3922} 3923 3924/************************************************************************ 3925 * Handle a notify event relating to the status of a logical drive. 3926 * 3927 * XXX need to be able to defer some of these to properly handle 3928 * calling the "ID Physical drive" command, unless the 'extended' 3929 * drive IDs are always in BIG_MAP format. 3930 */ 3931static void 3932ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3933{ 3934 struct ciss_ldrive *ld; 3935 int ostatus, bus, target; 3936 3937 debug_called(2); 3938 3939 bus = cn->device.physical.bus; 3940 target = cn->data.logical_status.logical_drive; 3941 ld = &sc->ciss_logical[bus][target]; 3942 3943 switch (cn->subclass) { 3944 case CISS_NOTIFY_LOGICAL_STATUS: 3945 switch (cn->detail) { 3946 case 0: 3947 ciss_name_device(sc, bus, target); 3948 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3949 cn->data.logical_status.logical_drive, ld->cl_name, 3950 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3951 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3952 cn->data.logical_status.spare_state, 3953 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3954 3955 /* 3956 * Update our idea of the drive's status. 3957 */ 3958 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3959 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3960 if (ld->cl_lstatus != NULL) 3961 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3962 3963 /* 3964 * Have CAM rescan the drive if its status has changed. 3965 */ 3966 if (ostatus != ld->cl_status) { 3967 ld->cl_update = 1; 3968 ciss_notify_rescan_logical(sc); 3969 } 3970 3971 break; 3972 3973 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3974 ciss_name_device(sc, bus, target); 3975 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3976 cn->data.logical_status.logical_drive, ld->cl_name); 3977 ciss_accept_media(sc, ld); 3978 3979 ld->cl_update = 1; 3980 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3981 ciss_notify_rescan_logical(sc); 3982 break; 3983 3984 case 2: 3985 case 3: 3986 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3987 cn->data.rebuild_aborted.logical_drive, 3988 ld->cl_name, 3989 (cn->detail == 2) ? "read" : "write"); 3990 break; 3991 } 3992 break; 3993 3994 case CISS_NOTIFY_LOGICAL_ERROR: 3995 if (cn->detail == 0) { 3996 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3997 cn->data.io_error.logical_drive, 3998 ld->cl_name, 3999 cn->data.io_error.failure_bus, 4000 cn->data.io_error.failure_drive); 4001 /* XXX should we take the drive down at this point, or will we be told? */ 4002 } 4003 break; 4004 4005 case CISS_NOTIFY_LOGICAL_SURFACE: 4006 if (cn->detail == 0) 4007 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4008 cn->data.consistency_completed.logical_drive, 4009 ld->cl_name); 4010 break; 4011 } 4012} 4013 4014/************************************************************************ 4015 * Handle a notify event relating to the status of a physical drive. 4016 */ 4017static void 4018ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4019{ 4020} 4021 4022/************************************************************************ 4023 * Handle a notify event relating to the status of a physical drive. 4024 */ 4025static void 4026ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4027{ 4028 struct ciss_lun_report *cll = NULL; 4029 int bus, target; 4030 4031 switch (cn->subclass) { 4032 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4033 case CISS_NOTIFY_HOTPLUG_NONDISK: 4034 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4035 target = 4036 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4037 4038 if (cn->detail == 0) { 4039 /* 4040 * Mark the device offline so that it'll start producing selection 4041 * timeouts to the upper layer. 4042 */ 4043 if ((bus >= 0) && (target >= 0)) 4044 sc->ciss_physical[bus][target].cp_online = 0; 4045 } else { 4046 /* 4047 * Rescan the physical lun list for new items 4048 */ 4049 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4050 CISS_MAX_PHYSICAL); 4051 if (cll == NULL) { 4052 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4053 break; 4054 } 4055 ciss_filter_physical(sc, cll); 4056 } 4057 break; 4058 4059 default: 4060 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4061 return; 4062 } 4063 4064 if (cll != NULL) 4065 free(cll, CISS_MALLOC_CLASS); 4066} 4067 4068/************************************************************************ 4069 * Handle deferred processing of notify events. Notify events may need 4070 * sleep which is unsafe during an interrupt. 4071 */ 4072static void 4073ciss_notify_thread(void *arg) 4074{ 4075 struct ciss_softc *sc; 4076 struct ciss_request *cr; 4077 struct ciss_notify *cn; 4078 4079 sc = (struct ciss_softc *)arg; 4080#if __FreeBSD_version >= 500000 4081 mtx_lock(&sc->ciss_mtx); 4082#endif 4083 4084 for (;;) { 4085 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4086 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4087 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4088 } 4089 4090 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4091 break; 4092 4093 cr = ciss_dequeue_notify(sc); 4094 4095 if (cr == NULL) 4096 panic("cr null"); 4097 cn = (struct ciss_notify *)cr->cr_data; 4098 4099 switch (cn->class) { 4100 case CISS_NOTIFY_HOTPLUG: 4101 ciss_notify_hotplug(sc, cn); 4102 break; 4103 case CISS_NOTIFY_LOGICAL: 4104 ciss_notify_logical(sc, cn); 4105 break; 4106 case CISS_NOTIFY_PHYSICAL: 4107 ciss_notify_physical(sc, cn); 4108 break; 4109 } 4110 4111 ciss_release_request(cr); 4112 4113 } 4114 sc->ciss_notify_thread = NULL; 4115 wakeup(&sc->ciss_notify_thread); 4116 4117#if __FreeBSD_version >= 500000 4118 mtx_unlock(&sc->ciss_mtx); 4119#endif 4120 kproc_exit(0); 4121} 4122 4123/************************************************************************ 4124 * Start the notification kernel thread. 4125 */ 4126static void 4127ciss_spawn_notify_thread(struct ciss_softc *sc) 4128{ 4129 4130#if __FreeBSD_version > 500005 4131 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4132 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4133 device_get_unit(sc->ciss_dev))) 4134#else 4135 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4136 &sc->ciss_notify_thread, "ciss_notify%d", 4137 device_get_unit(sc->ciss_dev))) 4138#endif 4139 panic("Could not create notify thread\n"); 4140} 4141 4142/************************************************************************ 4143 * Kill the notification kernel thread. 4144 */ 4145static void 4146ciss_kill_notify_thread(struct ciss_softc *sc) 4147{ 4148 4149 if (sc->ciss_notify_thread == NULL) 4150 return; 4151 4152 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4153 wakeup(&sc->ciss_notify); 4154 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4155} 4156 4157/************************************************************************ 4158 * Print a request. 4159 */ 4160static void 4161ciss_print_request(struct ciss_request *cr) 4162{ 4163 struct ciss_softc *sc; 4164 struct ciss_command *cc; 4165 int i; 4166 4167 sc = cr->cr_sc; 4168 cc = cr->cr_cc; 4169 4170 ciss_printf(sc, "REQUEST @ %p\n", cr); 4171 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4172 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4173 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4174 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4175 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4176 switch(cc->header.address.mode.mode) { 4177 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4178 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4179 ciss_printf(sc, " physical bus %d target %d\n", 4180 cc->header.address.physical.bus, cc->header.address.physical.target); 4181 break; 4182 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4183 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4184 break; 4185 } 4186 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4187 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4188 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4189 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4190 cc->cdb.cdb_length, 4191 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4192 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4193 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4194 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4195 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4196 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4197 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4198 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4199 4200 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4201 /* XXX print error info */ 4202 } else { 4203 /* since we don't use chained s/g, don't support it here */ 4204 for (i = 0; i < cc->header.sg_in_list; i++) { 4205 if ((i % 4) == 0) 4206 ciss_printf(sc, " "); 4207 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4208 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4209 printf("\n"); 4210 } 4211 } 4212} 4213 4214/************************************************************************ 4215 * Print information about the status of a logical drive. 4216 */ 4217static void 4218ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4219{ 4220 int bus, target, i; 4221 4222 if (ld->cl_lstatus == NULL) { 4223 printf("does not exist\n"); 4224 return; 4225 } 4226 4227 /* print drive status */ 4228 switch(ld->cl_lstatus->status) { 4229 case CISS_LSTATUS_OK: 4230 printf("online\n"); 4231 break; 4232 case CISS_LSTATUS_INTERIM_RECOVERY: 4233 printf("in interim recovery mode\n"); 4234 break; 4235 case CISS_LSTATUS_READY_RECOVERY: 4236 printf("ready to begin recovery\n"); 4237 break; 4238 case CISS_LSTATUS_RECOVERING: 4239 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4240 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4241 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4242 bus, target, ld->cl_lstatus->blocks_to_recover); 4243 break; 4244 case CISS_LSTATUS_EXPANDING: 4245 printf("being expanded, %u blocks remaining\n", 4246 ld->cl_lstatus->blocks_to_recover); 4247 break; 4248 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4249 printf("queued for expansion\n"); 4250 break; 4251 case CISS_LSTATUS_FAILED: 4252 printf("queued for expansion\n"); 4253 break; 4254 case CISS_LSTATUS_WRONG_PDRIVE: 4255 printf("wrong physical drive inserted\n"); 4256 break; 4257 case CISS_LSTATUS_MISSING_PDRIVE: 4258 printf("missing a needed physical drive\n"); 4259 break; 4260 case CISS_LSTATUS_BECOMING_READY: 4261 printf("becoming ready\n"); 4262 break; 4263 } 4264 4265 /* print failed physical drives */ 4266 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4267 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4268 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4269 if (bus == -1) 4270 continue; 4271 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4272 ld->cl_lstatus->drive_failure_map[i]); 4273 } 4274} 4275 4276#ifdef CISS_DEBUG 4277/************************************************************************ 4278 * Print information about the controller/driver. 4279 */ 4280static void 4281ciss_print_adapter(struct ciss_softc *sc) 4282{ 4283 int i, j; 4284 4285 ciss_printf(sc, "ADAPTER:\n"); 4286 for (i = 0; i < CISSQ_COUNT; i++) { 4287 ciss_printf(sc, "%s %d/%d\n", 4288 i == 0 ? "free" : 4289 i == 1 ? "busy" : "complete", 4290 sc->ciss_qstat[i].q_length, 4291 sc->ciss_qstat[i].q_max); 4292 } 4293 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4294 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4295 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4296 4297 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4298 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4299 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4300 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4301 } 4302 } 4303 4304 /* XXX Should physical drives be printed out here? */ 4305 4306 for (i = 1; i < sc->ciss_max_requests; i++) 4307 ciss_print_request(sc->ciss_request + i); 4308} 4309 4310/* DDB hook */ 4311static void 4312ciss_print0(void) 4313{ 4314 struct ciss_softc *sc; 4315 4316 sc = devclass_get_softc(devclass_find("ciss"), 0); 4317 if (sc == NULL) { 4318 printf("no ciss controllers\n"); 4319 } else { 4320 ciss_print_adapter(sc); 4321 } 4322} 4323#endif 4324 4325/************************************************************************ 4326 * Return a name for a logical drive status value. 4327 */ 4328static const char * 4329ciss_name_ldrive_status(int status) 4330{ 4331 switch (status) { 4332 case CISS_LSTATUS_OK: 4333 return("OK"); 4334 case CISS_LSTATUS_FAILED: 4335 return("failed"); 4336 case CISS_LSTATUS_NOT_CONFIGURED: 4337 return("not configured"); 4338 case CISS_LSTATUS_INTERIM_RECOVERY: 4339 return("interim recovery"); 4340 case CISS_LSTATUS_READY_RECOVERY: 4341 return("ready for recovery"); 4342 case CISS_LSTATUS_RECOVERING: 4343 return("recovering"); 4344 case CISS_LSTATUS_WRONG_PDRIVE: 4345 return("wrong physical drive inserted"); 4346 case CISS_LSTATUS_MISSING_PDRIVE: 4347 return("missing physical drive"); 4348 case CISS_LSTATUS_EXPANDING: 4349 return("expanding"); 4350 case CISS_LSTATUS_BECOMING_READY: 4351 return("becoming ready"); 4352 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4353 return("queued for expansion"); 4354 } 4355 return("unknown status"); 4356} 4357 4358/************************************************************************ 4359 * Return an online/offline/nonexistent value for a logical drive 4360 * status value. 4361 */ 4362static int 4363ciss_decode_ldrive_status(int status) 4364{ 4365 switch(status) { 4366 case CISS_LSTATUS_NOT_CONFIGURED: 4367 return(CISS_LD_NONEXISTENT); 4368 4369 case CISS_LSTATUS_OK: 4370 case CISS_LSTATUS_INTERIM_RECOVERY: 4371 case CISS_LSTATUS_READY_RECOVERY: 4372 case CISS_LSTATUS_RECOVERING: 4373 case CISS_LSTATUS_EXPANDING: 4374 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4375 return(CISS_LD_ONLINE); 4376 4377 case CISS_LSTATUS_FAILED: 4378 case CISS_LSTATUS_WRONG_PDRIVE: 4379 case CISS_LSTATUS_MISSING_PDRIVE: 4380 case CISS_LSTATUS_BECOMING_READY: 4381 default: 4382 return(CISS_LD_OFFLINE); 4383 } 4384} 4385 4386 4387/************************************************************************ 4388 * Return a name for a logical drive's organisation. 4389 */ 4390static const char * 4391ciss_name_ldrive_org(int org) 4392{ 4393 switch(org) { 4394 case CISS_LDRIVE_RAID0: 4395 return("RAID 0"); 4396 case CISS_LDRIVE_RAID1: 4397 return("RAID 1"); 4398 case CISS_LDRIVE_RAID4: 4399 return("RAID 4"); 4400 case CISS_LDRIVE_RAID5: 4401 return("RAID 5"); 4402 case CISS_LDRIVE_RAID51: 4403 return("RAID 5+1"); 4404 case CISS_LDRIVE_RAIDADG: 4405 return("RAID ADG"); 4406 } 4407 return("unkown"); 4408} 4409 4410/************************************************************************ 4411 * Return a name for a command status value. 4412 */ 4413static const char * 4414ciss_name_command_status(int status) 4415{ 4416 switch(status) { 4417 case CISS_CMD_STATUS_SUCCESS: 4418 return("success"); 4419 case CISS_CMD_STATUS_TARGET_STATUS: 4420 return("target status"); 4421 case CISS_CMD_STATUS_DATA_UNDERRUN: 4422 return("data underrun"); 4423 case CISS_CMD_STATUS_DATA_OVERRUN: 4424 return("data overrun"); 4425 case CISS_CMD_STATUS_INVALID_COMMAND: 4426 return("invalid command"); 4427 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4428 return("protocol error"); 4429 case CISS_CMD_STATUS_HARDWARE_ERROR: 4430 return("hardware error"); 4431 case CISS_CMD_STATUS_CONNECTION_LOST: 4432 return("connection lost"); 4433 case CISS_CMD_STATUS_ABORTED: 4434 return("aborted"); 4435 case CISS_CMD_STATUS_ABORT_FAILED: 4436 return("abort failed"); 4437 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4438 return("unsolicited abort"); 4439 case CISS_CMD_STATUS_TIMEOUT: 4440 return("timeout"); 4441 case CISS_CMD_STATUS_UNABORTABLE: 4442 return("unabortable"); 4443 } 4444 return("unknown status"); 4445} 4446 4447/************************************************************************ 4448 * Handle an open on the control device. 4449 */ 4450static int 4451ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4452{ 4453 struct ciss_softc *sc; 4454 4455 debug_called(1); 4456 4457 sc = (struct ciss_softc *)dev->si_drv1; 4458 4459 /* we might want to veto if someone already has us open */ 4460 4461 mtx_lock(&sc->ciss_mtx); 4462 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4463 mtx_unlock(&sc->ciss_mtx); 4464 return(0); 4465} 4466 4467/************************************************************************ 4468 * Handle the last close on the control device. 4469 */ 4470static int 4471ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4472{ 4473 struct ciss_softc *sc; 4474 4475 debug_called(1); 4476 4477 sc = (struct ciss_softc *)dev->si_drv1; 4478 4479 mtx_lock(&sc->ciss_mtx); 4480 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4481 mtx_unlock(&sc->ciss_mtx); 4482 return (0); 4483} 4484 4485/******************************************************************************** 4486 * Handle adapter-specific control operations. 4487 * 4488 * Note that the API here is compatible with the Linux driver, in order to 4489 * simplify the porting of Compaq's userland tools. 4490 */ 4491static int 4492ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4493{ 4494 struct ciss_softc *sc; 4495 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4496#ifdef __amd64__ 4497 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4498 IOCTL_Command_struct ioc_swab; 4499#endif 4500 int error; 4501 4502 debug_called(1); 4503 4504 sc = (struct ciss_softc *)dev->si_drv1; 4505 error = 0; 4506 mtx_lock(&sc->ciss_mtx); 4507 4508 switch(cmd) { 4509 case CCISS_GETQSTATS: 4510 { 4511 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4512 4513 switch (cr->cs_item) { 4514 case CISSQ_FREE: 4515 case CISSQ_NOTIFY: 4516 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4517 sizeof(struct ciss_qstat)); 4518 break; 4519 default: 4520 error = ENOIOCTL; 4521 break; 4522 } 4523 4524 break; 4525 } 4526 4527 case CCISS_GETPCIINFO: 4528 { 4529 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4530 4531 pis->bus = pci_get_bus(sc->ciss_dev); 4532 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4533 pis->board_id = pci_get_devid(sc->ciss_dev); 4534 4535 break; 4536 } 4537 4538 case CCISS_GETINTINFO: 4539 { 4540 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4541 4542 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4543 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4544 4545 break; 4546 } 4547 4548 case CCISS_SETINTINFO: 4549 { 4550 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4551 4552 if ((cis->delay == 0) && (cis->count == 0)) { 4553 error = EINVAL; 4554 break; 4555 } 4556 4557 /* 4558 * XXX apparently this is only safe if the controller is idle, 4559 * we should suspend it before doing this. 4560 */ 4561 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4562 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4563 4564 if (ciss_update_config(sc)) 4565 error = EIO; 4566 4567 /* XXX resume the controller here */ 4568 break; 4569 } 4570 4571 case CCISS_GETNODENAME: 4572 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4573 sizeof(NodeName_type)); 4574 break; 4575 4576 case CCISS_SETNODENAME: 4577 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4578 sizeof(NodeName_type)); 4579 if (ciss_update_config(sc)) 4580 error = EIO; 4581 break; 4582 4583 case CCISS_GETHEARTBEAT: 4584 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4585 break; 4586 4587 case CCISS_GETBUSTYPES: 4588 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4589 break; 4590 4591 case CCISS_GETFIRMVER: 4592 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4593 sizeof(FirmwareVer_type)); 4594 break; 4595 4596 case CCISS_GETDRIVERVER: 4597 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4598 break; 4599 4600 case CCISS_REVALIDVOLS: 4601 /* 4602 * This is a bit ugly; to do it "right" we really need 4603 * to find any disks that have changed, kick CAM off them, 4604 * then rescan only these disks. It'd be nice if they 4605 * a) told us which disk(s) they were going to play with, 4606 * and b) which ones had arrived. 8( 4607 */ 4608 break; 4609 4610#ifdef __amd64__ 4611 case CCISS_PASSTHRU32: 4612 ioc_swab.LUN_info = ioc32->LUN_info; 4613 ioc_swab.Request = ioc32->Request; 4614 ioc_swab.error_info = ioc32->error_info; 4615 ioc_swab.buf_size = ioc32->buf_size; 4616 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4617 ioc = &ioc_swab; 4618 /* FALLTHROUGH */ 4619#endif 4620 4621 case CCISS_PASSTHRU: 4622 error = ciss_user_command(sc, ioc); 4623 break; 4624 4625 default: 4626 debug(0, "unknown ioctl 0x%lx", cmd); 4627 4628 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4629 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4630 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4631 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4632 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4633 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4634 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4635 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4636 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4637 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4638 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4639 4640 error = ENOIOCTL; 4641 break; 4642 } 4643 4644 mtx_unlock(&sc->ciss_mtx); 4645 return(error); 4646} 4647