1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 109 "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_setup_msix(struct ciss_softc *sc); 121 static int ciss_init_perf(struct ciss_softc *sc); 122 static int ciss_wait_adapter(struct ciss_softc *sc); 123 static int ciss_flush_adapter(struct ciss_softc *sc); 124 static int ciss_init_requests(struct ciss_softc *sc); 125 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 126 int nseg, int error); 127 static int ciss_identify_adapter(struct ciss_softc *sc); 128 static int ciss_init_logical(struct ciss_softc *sc); 129 static int ciss_init_physical(struct ciss_softc *sc); 130 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 131 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 133 static int ciss_update_config(struct ciss_softc *sc); 134 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 135 static void ciss_init_sysctl(struct ciss_softc *sc); 136 static void ciss_soft_reset(struct ciss_softc *sc); 137 static void ciss_free(struct ciss_softc *sc); 138 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 139 static void ciss_kill_notify_thread(struct ciss_softc *sc); 140 141 /* request submission/completion */ 142 static int ciss_start(struct ciss_request *cr); 143 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 145 static void ciss_intr(void *arg); 146 static void ciss_perf_intr(void *arg); 147 static void ciss_perf_msi_intr(void *arg); 148 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 149 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 150 static int ciss_synch_request(struct ciss_request *cr, int timeout); 151 static int ciss_poll_request(struct ciss_request *cr, int timeout); 152 static int ciss_wait_request(struct ciss_request *cr, int timeout); 153 #if 0 154 static int ciss_abort_request(struct ciss_request *cr); 155 #endif 156 157 /* request queueing */ 158 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 159 static void ciss_preen_command(struct ciss_request *cr); 160 static void ciss_release_request(struct ciss_request *cr); 161 162 /* request helpers */ 163 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 164 int opcode, void **bufp, size_t bufsize); 165 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 166 167 /* DMA map/unmap */ 168 static int ciss_map_request(struct ciss_request *cr); 169 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 170 int nseg, int error); 171 static void ciss_unmap_request(struct ciss_request *cr); 172 173 /* CAM interface */ 174 static int ciss_cam_init(struct ciss_softc *sc); 175 static void ciss_cam_rescan_target(struct ciss_softc *sc, 176 int bus, int target); 177 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 178 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 179 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static void ciss_cam_poll(struct cam_sim *sim); 181 static void ciss_cam_complete(struct ciss_request *cr); 182 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 183 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 184 int bus, int target); 185 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 186 187 /* periodic status monitoring */ 188 static void ciss_periodic(void *arg); 189 static void ciss_nop_complete(struct ciss_request *cr); 190 static void ciss_disable_adapter(struct ciss_softc *sc); 191 static void ciss_notify_event(struct ciss_softc *sc); 192 static void ciss_notify_complete(struct ciss_request *cr); 193 static int ciss_notify_abort(struct ciss_softc *sc); 194 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 195 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 196 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 198 199 /* debugging output */ 200 static void ciss_print_request(struct ciss_request *cr); 201 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 202 static const char *ciss_name_ldrive_status(int status); 203 static int ciss_decode_ldrive_status(int status); 204 static const char *ciss_name_ldrive_org(int org); 205 static const char *ciss_name_command_status(int status); 206 207 /* 208 * PCI bus interface. 209 */ 210 static device_method_t ciss_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, ciss_probe), 213 DEVMETHOD(device_attach, ciss_attach), 214 DEVMETHOD(device_detach, ciss_detach), 215 DEVMETHOD(device_shutdown, ciss_shutdown), 216 { 0, 0 } 217 }; 218 219 static driver_t ciss_pci_driver = { 220 "ciss", 221 ciss_methods, 222 sizeof(struct ciss_softc) 223 }; 224 225 static devclass_t ciss_devclass; 226 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 227 MODULE_DEPEND(ciss, cam, 1, 1, 1); 228 MODULE_DEPEND(ciss, pci, 1, 1, 1); 229 230 /* 231 * Control device interface. 232 */ 233 static d_open_t ciss_open; 234 static d_close_t ciss_close; 235 static d_ioctl_t ciss_ioctl; 236 237 static struct cdevsw ciss_cdevsw = { 238 .d_version = D_VERSION, 239 .d_flags = 0, 240 .d_open = ciss_open, 241 .d_close = ciss_close, 242 .d_ioctl = ciss_ioctl, 243 .d_name = "ciss", 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 286 static struct 287 { 288 u_int16_t subvendor; 289 u_int16_t subdevice; 290 int flags; 291 char *desc; 292 } ciss_vendor_data[] = { 293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0, 0, 0, NULL } 333 }; 334 335 /************************************************************************ 336 * Find a match for the device in our list of known adapters. 337 */ 338 static int 339 ciss_lookup(device_t dev) 340 { 341 int i; 342 343 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 344 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 345 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 346 return(i); 347 } 348 return(-1); 349 } 350 351 /************************************************************************ 352 * Match a known CISS adapter. 353 */ 354 static int 355 ciss_probe(device_t dev) 356 { 357 int i; 358 359 i = ciss_lookup(dev); 360 if (i != -1) { 361 device_set_desc(dev, ciss_vendor_data[i].desc); 362 return(BUS_PROBE_DEFAULT); 363 } 364 return(ENOENT); 365 } 366 367 /************************************************************************ 368 * Attach the driver to this adapter. 369 */ 370 static int 371 ciss_attach(device_t dev) 372 { 373 struct ciss_softc *sc; 374 int error; 375 376 debug_called(1); 377 378 #ifdef CISS_DEBUG 379 /* print structure/union sizes */ 380 debug_struct(ciss_command); 381 debug_struct(ciss_header); 382 debug_union(ciss_device_address); 383 debug_struct(ciss_cdb); 384 debug_struct(ciss_report_cdb); 385 debug_struct(ciss_notify_cdb); 386 debug_struct(ciss_notify); 387 debug_struct(ciss_message_cdb); 388 debug_struct(ciss_error_info_pointer); 389 debug_struct(ciss_error_info); 390 debug_struct(ciss_sg_entry); 391 debug_struct(ciss_config_table); 392 debug_struct(ciss_bmic_cdb); 393 debug_struct(ciss_bmic_id_ldrive); 394 debug_struct(ciss_bmic_id_lstatus); 395 debug_struct(ciss_bmic_id_table); 396 debug_struct(ciss_bmic_id_pdrive); 397 debug_struct(ciss_bmic_blink_pdrive); 398 debug_struct(ciss_bmic_flush_cache); 399 debug_const(CISS_MAX_REQUESTS); 400 debug_const(CISS_MAX_LOGICAL); 401 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 402 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 403 debug_const(CISS_COMMAND_ALLOC_SIZE); 404 debug_const(CISS_COMMAND_SG_LENGTH); 405 406 debug_type(cciss_pci_info_struct); 407 debug_type(cciss_coalint_struct); 408 debug_type(cciss_coalint_struct); 409 debug_type(NodeName_type); 410 debug_type(NodeName_type); 411 debug_type(Heartbeat_type); 412 debug_type(BusTypes_type); 413 debug_type(FirmwareVer_type); 414 debug_type(DriverVer_type); 415 debug_type(IOCTL_Command_struct); 416 #endif 417 418 sc = device_get_softc(dev); 419 sc->ciss_dev = dev; 420 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 421 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 422 423 /* 424 * Do PCI-specific init. 425 */ 426 if ((error = ciss_init_pci(sc)) != 0) 427 goto out; 428 429 /* 430 * Initialise driver queues. 431 */ 432 ciss_initq_free(sc); 433 ciss_initq_notify(sc); 434 435 /* 436 * Initalize device sysctls. 437 */ 438 ciss_init_sysctl(sc); 439 440 /* 441 * Initialise command/request pool. 442 */ 443 if ((error = ciss_init_requests(sc)) != 0) 444 goto out; 445 446 /* 447 * Get adapter information. 448 */ 449 if ((error = ciss_identify_adapter(sc)) != 0) 450 goto out; 451 452 /* 453 * Find all the physical devices. 454 */ 455 if ((error = ciss_init_physical(sc)) != 0) 456 goto out; 457 458 /* 459 * Build our private table of logical devices. 460 */ 461 if ((error = ciss_init_logical(sc)) != 0) 462 goto out; 463 464 /* 465 * Enable interrupts so that the CAM scan can complete. 466 */ 467 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 468 469 /* 470 * Initialise the CAM interface. 471 */ 472 if ((error = ciss_cam_init(sc)) != 0) 473 goto out; 474 475 /* 476 * Start the heartbeat routine and event chain. 477 */ 478 ciss_periodic(sc); 479 480 /* 481 * Create the control device. 482 */ 483 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 484 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 485 "ciss%d", device_get_unit(sc->ciss_dev)); 486 sc->ciss_dev_t->si_drv1 = sc; 487 488 /* 489 * The adapter is running; synchronous commands can now sleep 490 * waiting for an interrupt to signal completion. 491 */ 492 sc->ciss_flags |= CISS_FLAG_RUNNING; 493 494 ciss_spawn_notify_thread(sc); 495 496 error = 0; 497 out: 498 if (error != 0) { 499 /* ciss_free() expects the mutex to be held */ 500 mtx_lock(&sc->ciss_mtx); 501 ciss_free(sc); 502 } 503 return(error); 504 } 505 506 /************************************************************************ 507 * Detach the driver from this adapter. 508 */ 509 static int 510 ciss_detach(device_t dev) 511 { 512 struct ciss_softc *sc = device_get_softc(dev); 513 514 debug_called(1); 515 516 mtx_lock(&sc->ciss_mtx); 517 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 518 mtx_unlock(&sc->ciss_mtx); 519 return (EBUSY); 520 } 521 522 /* flush adapter cache */ 523 ciss_flush_adapter(sc); 524 525 /* release all resources. The mutex is released and freed here too. */ 526 ciss_free(sc); 527 528 return(0); 529 } 530 531 /************************************************************************ 532 * Prepare adapter for system shutdown. 533 */ 534 static int 535 ciss_shutdown(device_t dev) 536 { 537 struct ciss_softc *sc = device_get_softc(dev); 538 539 debug_called(1); 540 541 mtx_lock(&sc->ciss_mtx); 542 /* flush adapter cache */ 543 ciss_flush_adapter(sc); 544 545 if (sc->ciss_soft_reset) 546 ciss_soft_reset(sc); 547 mtx_unlock(&sc->ciss_mtx); 548 549 return(0); 550 } 551 552 static void 553 ciss_init_sysctl(struct ciss_softc *sc) 554 { 555 556 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 557 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 558 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 559 } 560 561 /************************************************************************ 562 * Perform PCI-specific attachment actions. 563 */ 564 static int 565 ciss_init_pci(struct ciss_softc *sc) 566 { 567 uintptr_t cbase, csize, cofs; 568 uint32_t method, supported_methods; 569 int error, sqmask, i; 570 void *intr; 571 572 debug_called(1); 573 574 /* 575 * Work out adapter type. 576 */ 577 i = ciss_lookup(sc->ciss_dev); 578 if (i < 0) { 579 ciss_printf(sc, "unknown adapter type\n"); 580 return (ENXIO); 581 } 582 583 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 584 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 585 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 586 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 587 } else { 588 /* 589 * XXX Big hammer, masks/unmasks all possible interrupts. This should 590 * work on all hardware variants. Need to add code to handle the 591 * "controller crashed" interupt bit that this unmasks. 592 */ 593 sqmask = ~0; 594 } 595 596 /* 597 * Allocate register window first (we need this to find the config 598 * struct). 599 */ 600 error = ENXIO; 601 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 602 if ((sc->ciss_regs_resource = 603 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 604 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 605 ciss_printf(sc, "can't allocate register window\n"); 606 return(ENXIO); 607 } 608 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 609 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 610 611 /* 612 * Find the BAR holding the config structure. If it's not the one 613 * we already mapped for registers, map it too. 614 */ 615 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 616 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 617 if ((sc->ciss_cfg_resource = 618 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 619 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 620 ciss_printf(sc, "can't allocate config window\n"); 621 return(ENXIO); 622 } 623 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 624 csize = rman_get_end(sc->ciss_cfg_resource) - 625 rman_get_start(sc->ciss_cfg_resource) + 1; 626 } else { 627 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 628 csize = rman_get_end(sc->ciss_regs_resource) - 629 rman_get_start(sc->ciss_regs_resource) + 1; 630 } 631 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 632 633 /* 634 * Use the base/size/offset values we just calculated to 635 * sanity-check the config structure. If it's OK, point to it. 636 */ 637 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 638 ciss_printf(sc, "config table outside window\n"); 639 return(ENXIO); 640 } 641 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 642 debug(1, "config struct at %p", sc->ciss_cfg); 643 644 /* 645 * Calculate the number of request structures/commands we are 646 * going to provide for this adapter. 647 */ 648 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 649 650 /* 651 * Validate the config structure. If we supported other transport 652 * methods, we could select amongst them at this point in time. 653 */ 654 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 655 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 656 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 657 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 658 return(ENXIO); 659 } 660 661 /* 662 * Select the mode of operation, prefer Performant. 663 */ 664 if (!(sc->ciss_cfg->supported_methods & 665 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 666 ciss_printf(sc, "No supported transport layers: 0x%x\n", 667 sc->ciss_cfg->supported_methods); 668 } 669 670 switch (ciss_force_transport) { 671 case 1: 672 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 673 break; 674 case 2: 675 supported_methods = CISS_TRANSPORT_METHOD_PERF; 676 break; 677 default: 678 supported_methods = sc->ciss_cfg->supported_methods; 679 break; 680 } 681 682 setup: 683 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 684 method = CISS_TRANSPORT_METHOD_PERF; 685 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 686 sc->ciss_cfg->transport_offset); 687 if (ciss_init_perf(sc)) { 688 supported_methods &= ~method; 689 goto setup; 690 } 691 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 692 method = CISS_TRANSPORT_METHOD_SIMPLE; 693 } else { 694 ciss_printf(sc, "No supported transport methods: 0x%x\n", 695 sc->ciss_cfg->supported_methods); 696 return(ENXIO); 697 } 698 699 /* 700 * Tell it we're using the low 4GB of RAM. Set the default interrupt 701 * coalescing options. 702 */ 703 sc->ciss_cfg->requested_method = method; 704 sc->ciss_cfg->command_physlimit = 0; 705 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 706 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 707 708 #ifdef __i386__ 709 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 710 #endif 711 712 if (ciss_update_config(sc)) { 713 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 714 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 715 return(ENXIO); 716 } 717 if ((sc->ciss_cfg->active_method & method) == 0) { 718 supported_methods &= ~method; 719 if (supported_methods == 0) { 720 ciss_printf(sc, "adapter refuses to go into available transports " 721 "mode (0x%x, 0x%x)\n", supported_methods, 722 sc->ciss_cfg->active_method); 723 return(ENXIO); 724 } else 725 goto setup; 726 } 727 728 /* 729 * Wait for the adapter to come ready. 730 */ 731 if ((error = ciss_wait_adapter(sc)) != 0) 732 return(error); 733 734 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 735 * interrupts have a rid of 0, this will be overridden if MSIX is used. 736 */ 737 sc->ciss_irq_rid[0] = 0; 738 if (method == CISS_TRANSPORT_METHOD_PERF) { 739 ciss_printf(sc, "PERFORMANT Transport\n"); 740 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 741 intr = ciss_perf_msi_intr; 742 } else { 743 intr = ciss_perf_intr; 744 } 745 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 746 * Unfortunately, there is no good way to know if this is a SAS 747 * controller. Hopefully enabling this bit universally will work OK. 748 * It seems to work fine for SA6i controllers. 749 */ 750 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 751 752 } else { 753 ciss_printf(sc, "SIMPLE Transport\n"); 754 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 755 if (ciss_force_interrupt == 2) 756 /* If this fails, we automatically revert to INTx */ 757 ciss_setup_msix(sc); 758 sc->ciss_perf = NULL; 759 intr = ciss_intr; 760 sc->ciss_interrupt_mask = sqmask; 761 } 762 763 /* 764 * Turn off interrupts before we go routing anything. 765 */ 766 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 767 768 /* 769 * Allocate and set up our interrupt. 770 */ 771 if ((sc->ciss_irq_resource = 772 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 773 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 774 ciss_printf(sc, "can't allocate interrupt\n"); 775 return(ENXIO); 776 } 777 778 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 779 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 780 &sc->ciss_intr)) { 781 ciss_printf(sc, "can't set up interrupt\n"); 782 return(ENXIO); 783 } 784 785 /* 786 * Allocate the parent bus DMA tag appropriate for our PCI 787 * interface. 788 * 789 * Note that "simple" adapters can only address within a 32-bit 790 * span. 791 */ 792 if (bus_dma_tag_create(NULL, /* parent */ 793 1, 0, /* alignment, boundary */ 794 BUS_SPACE_MAXADDR, /* lowaddr */ 795 BUS_SPACE_MAXADDR, /* highaddr */ 796 NULL, NULL, /* filter, filterarg */ 797 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 798 CISS_MAX_SG_ELEMENTS, /* nsegments */ 799 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 800 0, /* flags */ 801 NULL, NULL, /* lockfunc, lockarg */ 802 &sc->ciss_parent_dmat)) { 803 ciss_printf(sc, "can't allocate parent DMA tag\n"); 804 return(ENOMEM); 805 } 806 807 /* 808 * Create DMA tag for mapping buffers into adapter-addressable 809 * space. 810 */ 811 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 812 1, 0, /* alignment, boundary */ 813 BUS_SPACE_MAXADDR, /* lowaddr */ 814 BUS_SPACE_MAXADDR, /* highaddr */ 815 NULL, NULL, /* filter, filterarg */ 816 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 817 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 818 BUS_DMA_ALLOCNOW, /* flags */ 819 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 820 &sc->ciss_buffer_dmat)) { 821 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 822 return(ENOMEM); 823 } 824 return(0); 825 } 826 827 /************************************************************************ 828 * Setup MSI/MSIX operation (Performant only) 829 * Four interrupts are available, but we only use 1 right now. If MSI-X 830 * isn't avaialble, try using MSI instead. 831 */ 832 static int 833 ciss_setup_msix(struct ciss_softc *sc) 834 { 835 int val, i; 836 837 /* Weed out devices that don't actually support MSI */ 838 i = ciss_lookup(sc->ciss_dev); 839 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 840 return (EINVAL); 841 842 /* 843 * Only need to use the minimum number of MSI vectors, as the driver 844 * doesn't support directed MSIX interrupts. 845 */ 846 val = pci_msix_count(sc->ciss_dev); 847 if (val < CISS_MSI_COUNT) { 848 val = pci_msi_count(sc->ciss_dev); 849 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 850 if (val < CISS_MSI_COUNT) 851 return (EINVAL); 852 } 853 val = MIN(val, CISS_MSI_COUNT); 854 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 855 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 856 return (EINVAL); 857 } 858 859 sc->ciss_msi = val; 860 if (bootverbose) 861 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 862 (val != 1) ? "s" : ""); 863 864 for (i = 0; i < val; i++) 865 sc->ciss_irq_rid[i] = i + 1; 866 867 return (0); 868 869 } 870 871 /************************************************************************ 872 * Setup the Performant structures. 873 */ 874 static int 875 ciss_init_perf(struct ciss_softc *sc) 876 { 877 struct ciss_perf_config *pc = sc->ciss_perf; 878 int reply_size; 879 880 /* 881 * Create the DMA tag for the reply queue. 882 */ 883 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 884 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 885 1, 0, /* alignment, boundary */ 886 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 887 BUS_SPACE_MAXADDR, /* highaddr */ 888 NULL, NULL, /* filter, filterarg */ 889 reply_size, 1, /* maxsize, nsegments */ 890 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 891 0, /* flags */ 892 NULL, NULL, /* lockfunc, lockarg */ 893 &sc->ciss_reply_dmat)) { 894 ciss_printf(sc, "can't allocate reply DMA tag\n"); 895 return(ENOMEM); 896 } 897 /* 898 * Allocate memory and make it available for DMA. 899 */ 900 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 901 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 902 ciss_printf(sc, "can't allocate reply memory\n"); 903 return(ENOMEM); 904 } 905 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 906 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 907 bzero(sc->ciss_reply, reply_size); 908 909 sc->ciss_cycle = 0x1; 910 sc->ciss_rqidx = 0; 911 912 /* 913 * Preload the fetch table with common command sizes. This allows the 914 * hardware to not waste bus cycles for typical i/o commands, but also not 915 * tax the driver to be too exact in choosing sizes. The table is optimized 916 * for page-aligned i/o's, but since most i/o comes from the various pagers, 917 * it's a reasonable assumption to make. 918 */ 919 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 920 pc->fetch_count[CISS_SG_FETCH_1] = 921 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 922 pc->fetch_count[CISS_SG_FETCH_2] = 923 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 924 pc->fetch_count[CISS_SG_FETCH_4] = 925 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 926 pc->fetch_count[CISS_SG_FETCH_8] = 927 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 928 pc->fetch_count[CISS_SG_FETCH_16] = 929 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 930 pc->fetch_count[CISS_SG_FETCH_32] = 931 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 932 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 933 934 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 935 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 936 pc->rq_bank_hi = 0; 937 pc->rq_bank_lo = 0; 938 pc->rq[0].rq_addr_hi = 0x0; 939 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 940 941 return(0); 942 } 943 944 /************************************************************************ 945 * Wait for the adapter to come ready. 946 */ 947 static int 948 ciss_wait_adapter(struct ciss_softc *sc) 949 { 950 int i; 951 952 debug_called(1); 953 954 /* 955 * Wait for the adapter to come ready. 956 */ 957 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 958 ciss_printf(sc, "waiting for adapter to come ready...\n"); 959 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 960 DELAY(1000000); /* one second */ 961 if (i > 30) { 962 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 963 return(EIO); 964 } 965 } 966 } 967 return(0); 968 } 969 970 /************************************************************************ 971 * Flush the adapter cache. 972 */ 973 static int 974 ciss_flush_adapter(struct ciss_softc *sc) 975 { 976 struct ciss_request *cr; 977 struct ciss_bmic_flush_cache *cbfc; 978 int error, command_status; 979 980 debug_called(1); 981 982 cr = NULL; 983 cbfc = NULL; 984 985 /* 986 * Build a BMIC request to flush the cache. We don't disable 987 * it, as we may be going to do more I/O (eg. we are emulating 988 * the Synchronise Cache command). 989 */ 990 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 991 error = ENOMEM; 992 goto out; 993 } 994 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 995 (void **)&cbfc, sizeof(*cbfc))) != 0) 996 goto out; 997 998 /* 999 * Submit the request and wait for it to complete. 1000 */ 1001 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1002 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1003 goto out; 1004 } 1005 1006 /* 1007 * Check response. 1008 */ 1009 ciss_report_request(cr, &command_status, NULL); 1010 switch(command_status) { 1011 case CISS_CMD_STATUS_SUCCESS: 1012 break; 1013 default: 1014 ciss_printf(sc, "error flushing cache (%s)\n", 1015 ciss_name_command_status(command_status)); 1016 error = EIO; 1017 goto out; 1018 } 1019 1020 out: 1021 if (cbfc != NULL) 1022 free(cbfc, CISS_MALLOC_CLASS); 1023 if (cr != NULL) 1024 ciss_release_request(cr); 1025 return(error); 1026 } 1027 1028 static void 1029 ciss_soft_reset(struct ciss_softc *sc) 1030 { 1031 struct ciss_request *cr = NULL; 1032 struct ciss_command *cc; 1033 int i, error = 0; 1034 1035 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1036 /* only reset proxy controllers */ 1037 if (sc->ciss_controllers[i].physical.bus == 0) 1038 continue; 1039 1040 if ((error = ciss_get_request(sc, &cr)) != 0) 1041 break; 1042 1043 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1044 NULL, 0)) != 0) 1045 break; 1046 1047 cc = cr->cr_cc; 1048 cc->header.address = sc->ciss_controllers[i]; 1049 1050 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1051 break; 1052 1053 ciss_release_request(cr); 1054 } 1055 1056 if (error) 1057 ciss_printf(sc, "error resetting controller (%d)\n", error); 1058 1059 if (cr != NULL) 1060 ciss_release_request(cr); 1061 } 1062 1063 /************************************************************************ 1064 * Allocate memory for the adapter command structures, initialise 1065 * the request structures. 1066 * 1067 * Note that the entire set of commands are allocated in a single 1068 * contiguous slab. 1069 */ 1070 static int 1071 ciss_init_requests(struct ciss_softc *sc) 1072 { 1073 struct ciss_request *cr; 1074 int i; 1075 1076 debug_called(1); 1077 1078 if (bootverbose) 1079 ciss_printf(sc, "using %d of %d available commands\n", 1080 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1081 1082 /* 1083 * Create the DMA tag for commands. 1084 */ 1085 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1086 32, 0, /* alignment, boundary */ 1087 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1088 BUS_SPACE_MAXADDR, /* highaddr */ 1089 NULL, NULL, /* filter, filterarg */ 1090 CISS_COMMAND_ALLOC_SIZE * 1091 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1092 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1093 0, /* flags */ 1094 NULL, NULL, /* lockfunc, lockarg */ 1095 &sc->ciss_command_dmat)) { 1096 ciss_printf(sc, "can't allocate command DMA tag\n"); 1097 return(ENOMEM); 1098 } 1099 /* 1100 * Allocate memory and make it available for DMA. 1101 */ 1102 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1103 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1104 ciss_printf(sc, "can't allocate command memory\n"); 1105 return(ENOMEM); 1106 } 1107 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1108 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1109 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1110 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1111 1112 /* 1113 * Set up the request and command structures, push requests onto 1114 * the free queue. 1115 */ 1116 for (i = 1; i < sc->ciss_max_requests; i++) { 1117 cr = &sc->ciss_request[i]; 1118 cr->cr_sc = sc; 1119 cr->cr_tag = i; 1120 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1121 CISS_COMMAND_ALLOC_SIZE * i); 1122 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1123 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1124 ciss_enqueue_free(cr); 1125 } 1126 return(0); 1127 } 1128 1129 static void 1130 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1131 { 1132 uint32_t *addr; 1133 1134 addr = arg; 1135 *addr = segs[0].ds_addr; 1136 } 1137 1138 /************************************************************************ 1139 * Identify the adapter, print some information about it. 1140 */ 1141 static int 1142 ciss_identify_adapter(struct ciss_softc *sc) 1143 { 1144 struct ciss_request *cr; 1145 int error, command_status; 1146 1147 debug_called(1); 1148 1149 cr = NULL; 1150 1151 /* 1152 * Get a request, allocate storage for the adapter data. 1153 */ 1154 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1155 (void **)&sc->ciss_id, 1156 sizeof(*sc->ciss_id))) != 0) 1157 goto out; 1158 1159 /* 1160 * Submit the request and wait for it to complete. 1161 */ 1162 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1163 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1164 goto out; 1165 } 1166 1167 /* 1168 * Check response. 1169 */ 1170 ciss_report_request(cr, &command_status, NULL); 1171 switch(command_status) { 1172 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1173 break; 1174 case CISS_CMD_STATUS_DATA_UNDERRUN: 1175 case CISS_CMD_STATUS_DATA_OVERRUN: 1176 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1177 default: 1178 ciss_printf(sc, "error reading adapter information (%s)\n", 1179 ciss_name_command_status(command_status)); 1180 error = EIO; 1181 goto out; 1182 } 1183 1184 /* sanity-check reply */ 1185 if (!sc->ciss_id->big_map_supported) { 1186 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1187 error = ENXIO; 1188 goto out; 1189 } 1190 1191 #if 0 1192 /* XXX later revisions may not need this */ 1193 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1194 #endif 1195 1196 /* XXX only really required for old 5300 adapters? */ 1197 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1198 1199 /* print information */ 1200 if (bootverbose) { 1201 #if 0 /* XXX proxy volumes??? */ 1202 ciss_printf(sc, " %d logical drive%s configured\n", 1203 sc->ciss_id->configured_logical_drives, 1204 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1205 #endif 1206 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1207 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1208 1209 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1210 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1211 ciss_printf(sc, " supported I/O methods 0x%b\n", 1212 sc->ciss_cfg->supported_methods, 1213 "\20\1READY\2simple\3performant\4MEMQ\n"); 1214 ciss_printf(sc, " active I/O method 0x%b\n", 1215 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1216 ciss_printf(sc, " 4G page base 0x%08x\n", 1217 sc->ciss_cfg->command_physlimit); 1218 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1219 sc->ciss_cfg->interrupt_coalesce_delay); 1220 ciss_printf(sc, " interrupt coalesce count %d\n", 1221 sc->ciss_cfg->interrupt_coalesce_count); 1222 ciss_printf(sc, " max outstanding commands %d\n", 1223 sc->ciss_cfg->max_outstanding_commands); 1224 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1225 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1226 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1227 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1228 } 1229 1230 out: 1231 if (error) { 1232 if (sc->ciss_id != NULL) { 1233 free(sc->ciss_id, CISS_MALLOC_CLASS); 1234 sc->ciss_id = NULL; 1235 } 1236 } 1237 if (cr != NULL) 1238 ciss_release_request(cr); 1239 return(error); 1240 } 1241 1242 /************************************************************************ 1243 * Helper routine for generating a list of logical and physical luns. 1244 */ 1245 static struct ciss_lun_report * 1246 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1247 { 1248 struct ciss_request *cr; 1249 struct ciss_command *cc; 1250 struct ciss_report_cdb *crc; 1251 struct ciss_lun_report *cll; 1252 int command_status; 1253 int report_size; 1254 int error = 0; 1255 1256 debug_called(1); 1257 1258 cr = NULL; 1259 cll = NULL; 1260 1261 /* 1262 * Get a request, allocate storage for the address list. 1263 */ 1264 if ((error = ciss_get_request(sc, &cr)) != 0) 1265 goto out; 1266 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1267 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1268 ciss_printf(sc, "can't allocate memory for lun report\n"); 1269 error = ENOMEM; 1270 goto out; 1271 } 1272 1273 /* 1274 * Build the Report Logical/Physical LUNs command. 1275 */ 1276 cc = cr->cr_cc; 1277 cr->cr_data = cll; 1278 cr->cr_length = report_size; 1279 cr->cr_flags = CISS_REQ_DATAIN; 1280 1281 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1282 cc->header.address.physical.bus = 0; 1283 cc->header.address.physical.target = 0; 1284 cc->cdb.cdb_length = sizeof(*crc); 1285 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1286 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1287 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1288 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1289 1290 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1291 bzero(crc, sizeof(*crc)); 1292 crc->opcode = opcode; 1293 crc->length = htonl(report_size); /* big-endian field */ 1294 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1295 1296 /* 1297 * Submit the request and wait for it to complete. (timeout 1298 * here should be much greater than above) 1299 */ 1300 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1301 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1302 goto out; 1303 } 1304 1305 /* 1306 * Check response. Note that data over/underrun is OK. 1307 */ 1308 ciss_report_request(cr, &command_status, NULL); 1309 switch(command_status) { 1310 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1311 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1312 break; 1313 case CISS_CMD_STATUS_DATA_OVERRUN: 1314 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1315 CISS_MAX_LOGICAL); 1316 break; 1317 default: 1318 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1319 ciss_name_command_status(command_status)); 1320 error = EIO; 1321 goto out; 1322 } 1323 ciss_release_request(cr); 1324 cr = NULL; 1325 1326 out: 1327 if (cr != NULL) 1328 ciss_release_request(cr); 1329 if (error && cll != NULL) { 1330 free(cll, CISS_MALLOC_CLASS); 1331 cll = NULL; 1332 } 1333 return(cll); 1334 } 1335 1336 /************************************************************************ 1337 * Find logical drives on the adapter. 1338 */ 1339 static int 1340 ciss_init_logical(struct ciss_softc *sc) 1341 { 1342 struct ciss_lun_report *cll; 1343 int error = 0, i, j; 1344 int ndrives; 1345 1346 debug_called(1); 1347 1348 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1349 CISS_MAX_LOGICAL); 1350 if (cll == NULL) { 1351 error = ENXIO; 1352 goto out; 1353 } 1354 1355 /* sanity-check reply */ 1356 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1357 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1358 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1359 ndrives, CISS_MAX_LOGICAL); 1360 error = ENXIO; 1361 goto out; 1362 } 1363 1364 /* 1365 * Save logical drive information. 1366 */ 1367 if (bootverbose) { 1368 ciss_printf(sc, "%d logical drive%s\n", 1369 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1370 } 1371 1372 sc->ciss_logical = 1373 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1374 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1375 if (sc->ciss_logical == NULL) { 1376 error = ENXIO; 1377 goto out; 1378 } 1379 1380 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1381 sc->ciss_logical[i] = 1382 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1383 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1384 if (sc->ciss_logical[i] == NULL) { 1385 error = ENXIO; 1386 goto out; 1387 } 1388 1389 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1390 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1391 } 1392 1393 1394 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1395 if (i < ndrives) { 1396 struct ciss_ldrive *ld; 1397 int bus, target; 1398 1399 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1400 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1401 ld = &sc->ciss_logical[bus][target]; 1402 1403 ld->cl_address = cll->lun[i]; 1404 ld->cl_controller = &sc->ciss_controllers[bus]; 1405 if (ciss_identify_logical(sc, ld) != 0) 1406 continue; 1407 /* 1408 * If the drive has had media exchanged, we should bring it online. 1409 */ 1410 if (ld->cl_lstatus->media_exchanged) 1411 ciss_accept_media(sc, ld); 1412 1413 } 1414 } 1415 1416 out: 1417 if (cll != NULL) 1418 free(cll, CISS_MALLOC_CLASS); 1419 return(error); 1420 } 1421 1422 static int 1423 ciss_init_physical(struct ciss_softc *sc) 1424 { 1425 struct ciss_lun_report *cll; 1426 int error = 0, i; 1427 int nphys; 1428 int bus, target; 1429 1430 debug_called(1); 1431 1432 bus = 0; 1433 target = 0; 1434 1435 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1436 CISS_MAX_PHYSICAL); 1437 if (cll == NULL) { 1438 error = ENXIO; 1439 goto out; 1440 } 1441 1442 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1443 1444 if (bootverbose) { 1445 ciss_printf(sc, "%d physical device%s\n", 1446 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1447 } 1448 1449 /* 1450 * Figure out the bus mapping. 1451 * Logical buses include both the local logical bus for local arrays and 1452 * proxy buses for remote arrays. Physical buses are numbered by the 1453 * controller and represent physical buses that hold physical devices. 1454 * We shift these bus numbers so that everything fits into a single flat 1455 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1456 * numbers, and the physical bus numbers are shifted to be above that. 1457 * This results in the various driver arrays being indexed as follows: 1458 * 1459 * ciss_controllers[] - indexed by logical bus 1460 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1461 * being shifted by 32. 1462 * ciss_logical[][] - indexed by logical bus 1463 * ciss_physical[][] - indexed by physical bus 1464 * 1465 * XXX This is getting more and more hackish. CISS really doesn't play 1466 * well with a standard SCSI model; devices are addressed via magic 1467 * cookies, not via b/t/l addresses. Since there is no way to store 1468 * the cookie in the CAM device object, we have to keep these lookup 1469 * tables handy so that the devices can be found quickly at the cost 1470 * of wasting memory and having a convoluted lookup scheme. This 1471 * driver should probably be converted to block interface. 1472 */ 1473 /* 1474 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1475 * controller. A proxy controller is another physical controller 1476 * behind the primary PCI controller. We need to know about this 1477 * so that BMIC commands can be properly targeted. There can be 1478 * proxy controllers attached to a single PCI controller, so 1479 * find the highest numbered one so the array can be properly 1480 * sized. 1481 */ 1482 sc->ciss_max_logical_bus = 1; 1483 for (i = 0; i < nphys; i++) { 1484 if (cll->lun[i].physical.extra_address == 0) { 1485 bus = cll->lun[i].physical.bus; 1486 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1487 } else { 1488 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1489 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1490 } 1491 } 1492 1493 sc->ciss_controllers = 1494 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1495 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1496 1497 if (sc->ciss_controllers == NULL) { 1498 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1499 error = ENOMEM; 1500 goto out; 1501 } 1502 1503 /* setup a map of controller addresses */ 1504 for (i = 0; i < nphys; i++) { 1505 if (cll->lun[i].physical.extra_address == 0) { 1506 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1507 } 1508 } 1509 1510 sc->ciss_physical = 1511 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1512 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1513 if (sc->ciss_physical == NULL) { 1514 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1515 error = ENOMEM; 1516 goto out; 1517 } 1518 1519 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1520 sc->ciss_physical[i] = 1521 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1522 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1523 if (sc->ciss_physical[i] == NULL) { 1524 ciss_printf(sc, "Could not allocate memory for target map\n"); 1525 error = ENOMEM; 1526 goto out; 1527 } 1528 } 1529 1530 ciss_filter_physical(sc, cll); 1531 1532 out: 1533 if (cll != NULL) 1534 free(cll, CISS_MALLOC_CLASS); 1535 1536 return(error); 1537 } 1538 1539 static int 1540 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1541 { 1542 u_int32_t ea; 1543 int i, nphys; 1544 int bus, target; 1545 1546 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1547 for (i = 0; i < nphys; i++) { 1548 if (cll->lun[i].physical.extra_address == 0) 1549 continue; 1550 1551 /* 1552 * Filter out devices that we don't want. Level 3 LUNs could 1553 * probably be supported, but the docs don't give enough of a 1554 * hint to know how. 1555 * 1556 * The mode field of the physical address is likely set to have 1557 * hard disks masked out. Honor it unless the user has overridden 1558 * us with the tunable. We also munge the inquiry data for these 1559 * disks so that they only show up as passthrough devices. Keeping 1560 * them visible in this fashion is useful for doing things like 1561 * flashing firmware. 1562 */ 1563 ea = cll->lun[i].physical.extra_address; 1564 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1565 (CISS_EXTRA_MODE2(ea) == 0x3)) 1566 continue; 1567 if ((ciss_expose_hidden_physical == 0) && 1568 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1569 continue; 1570 1571 /* 1572 * Note: CISS firmware numbers physical busses starting at '1', not 1573 * '0'. This numbering is internal to the firmware and is only 1574 * used as a hint here. 1575 */ 1576 bus = CISS_EXTRA_BUS2(ea) - 1; 1577 target = CISS_EXTRA_TARGET2(ea); 1578 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1579 sc->ciss_physical[bus][target].cp_online = 1; 1580 } 1581 1582 return (0); 1583 } 1584 1585 static int 1586 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1587 { 1588 struct ciss_request *cr; 1589 struct ciss_command *cc; 1590 struct scsi_inquiry *inq; 1591 int error; 1592 int command_status; 1593 1594 cr = NULL; 1595 1596 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1597 1598 if ((error = ciss_get_request(sc, &cr)) != 0) 1599 goto out; 1600 1601 cc = cr->cr_cc; 1602 cr->cr_data = &ld->cl_geometry; 1603 cr->cr_length = sizeof(ld->cl_geometry); 1604 cr->cr_flags = CISS_REQ_DATAIN; 1605 1606 cc->header.address = ld->cl_address; 1607 cc->cdb.cdb_length = 6; 1608 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1609 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1610 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1611 cc->cdb.timeout = 30; 1612 1613 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1614 inq->opcode = INQUIRY; 1615 inq->byte2 = SI_EVPD; 1616 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1617 inq->length = sizeof(ld->cl_geometry); 1618 1619 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1620 ciss_printf(sc, "error getting geometry (%d)\n", error); 1621 goto out; 1622 } 1623 1624 ciss_report_request(cr, &command_status, NULL); 1625 switch(command_status) { 1626 case CISS_CMD_STATUS_SUCCESS: 1627 case CISS_CMD_STATUS_DATA_UNDERRUN: 1628 break; 1629 case CISS_CMD_STATUS_DATA_OVERRUN: 1630 ciss_printf(sc, "WARNING: Data overrun\n"); 1631 break; 1632 default: 1633 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1634 ciss_name_command_status(command_status)); 1635 break; 1636 } 1637 1638 out: 1639 if (cr != NULL) 1640 ciss_release_request(cr); 1641 return(error); 1642 } 1643 /************************************************************************ 1644 * Identify a logical drive, initialise state related to it. 1645 */ 1646 static int 1647 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1648 { 1649 struct ciss_request *cr; 1650 struct ciss_command *cc; 1651 struct ciss_bmic_cdb *cbc; 1652 int error, command_status; 1653 1654 debug_called(1); 1655 1656 cr = NULL; 1657 1658 /* 1659 * Build a BMIC request to fetch the drive ID. 1660 */ 1661 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1662 (void **)&ld->cl_ldrive, 1663 sizeof(*ld->cl_ldrive))) != 0) 1664 goto out; 1665 cc = cr->cr_cc; 1666 cc->header.address = *ld->cl_controller; /* target controller */ 1667 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1668 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1669 1670 /* 1671 * Submit the request and wait for it to complete. 1672 */ 1673 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1674 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1675 goto out; 1676 } 1677 1678 /* 1679 * Check response. 1680 */ 1681 ciss_report_request(cr, &command_status, NULL); 1682 switch(command_status) { 1683 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1684 break; 1685 case CISS_CMD_STATUS_DATA_UNDERRUN: 1686 case CISS_CMD_STATUS_DATA_OVERRUN: 1687 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1688 default: 1689 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1690 ciss_name_command_status(command_status)); 1691 error = EIO; 1692 goto out; 1693 } 1694 ciss_release_request(cr); 1695 cr = NULL; 1696 1697 /* 1698 * Build a CISS BMIC command to get the logical drive status. 1699 */ 1700 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1701 goto out; 1702 1703 /* 1704 * Get the logical drive geometry. 1705 */ 1706 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1707 goto out; 1708 1709 /* 1710 * Print the drive's basic characteristics. 1711 */ 1712 if (bootverbose) { 1713 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1714 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1715 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1716 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1717 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1718 ld->cl_ldrive->block_size)); 1719 1720 ciss_print_ldrive(sc, ld); 1721 } 1722 out: 1723 if (error != 0) { 1724 /* make the drive not-exist */ 1725 ld->cl_status = CISS_LD_NONEXISTENT; 1726 if (ld->cl_ldrive != NULL) { 1727 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1728 ld->cl_ldrive = NULL; 1729 } 1730 if (ld->cl_lstatus != NULL) { 1731 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1732 ld->cl_lstatus = NULL; 1733 } 1734 } 1735 if (cr != NULL) 1736 ciss_release_request(cr); 1737 1738 return(error); 1739 } 1740 1741 /************************************************************************ 1742 * Get status for a logical drive. 1743 * 1744 * XXX should we also do this in response to Test Unit Ready? 1745 */ 1746 static int 1747 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1748 { 1749 struct ciss_request *cr; 1750 struct ciss_command *cc; 1751 struct ciss_bmic_cdb *cbc; 1752 int error, command_status; 1753 1754 /* 1755 * Build a CISS BMIC command to get the logical drive status. 1756 */ 1757 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1758 (void **)&ld->cl_lstatus, 1759 sizeof(*ld->cl_lstatus))) != 0) 1760 goto out; 1761 cc = cr->cr_cc; 1762 cc->header.address = *ld->cl_controller; /* target controller */ 1763 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1764 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1765 1766 /* 1767 * Submit the request and wait for it to complete. 1768 */ 1769 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1770 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1771 goto out; 1772 } 1773 1774 /* 1775 * Check response. 1776 */ 1777 ciss_report_request(cr, &command_status, NULL); 1778 switch(command_status) { 1779 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1780 break; 1781 case CISS_CMD_STATUS_DATA_UNDERRUN: 1782 case CISS_CMD_STATUS_DATA_OVERRUN: 1783 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1784 default: 1785 ciss_printf(sc, "error reading logical drive status (%s)\n", 1786 ciss_name_command_status(command_status)); 1787 error = EIO; 1788 goto out; 1789 } 1790 1791 /* 1792 * Set the drive's summary status based on the returned status. 1793 * 1794 * XXX testing shows that a failed JBOD drive comes back at next 1795 * boot in "queued for expansion" mode. WTF? 1796 */ 1797 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1798 1799 out: 1800 if (cr != NULL) 1801 ciss_release_request(cr); 1802 return(error); 1803 } 1804 1805 /************************************************************************ 1806 * Notify the adapter of a config update. 1807 */ 1808 static int 1809 ciss_update_config(struct ciss_softc *sc) 1810 { 1811 int i; 1812 1813 debug_called(1); 1814 1815 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1816 for (i = 0; i < 1000; i++) { 1817 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1818 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1819 return(0); 1820 } 1821 DELAY(1000); 1822 } 1823 return(1); 1824 } 1825 1826 /************************************************************************ 1827 * Accept new media into a logical drive. 1828 * 1829 * XXX The drive has previously been offline; it would be good if we 1830 * could make sure it's not open right now. 1831 */ 1832 static int 1833 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1834 { 1835 struct ciss_request *cr; 1836 struct ciss_command *cc; 1837 struct ciss_bmic_cdb *cbc; 1838 int command_status; 1839 int error = 0, ldrive; 1840 1841 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1842 1843 debug(0, "bringing logical drive %d back online"); 1844 1845 /* 1846 * Build a CISS BMIC command to bring the drive back online. 1847 */ 1848 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1849 NULL, 0)) != 0) 1850 goto out; 1851 cc = cr->cr_cc; 1852 cc->header.address = *ld->cl_controller; /* target controller */ 1853 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1854 cbc->log_drive = ldrive; 1855 1856 /* 1857 * Submit the request and wait for it to complete. 1858 */ 1859 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1860 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1861 goto out; 1862 } 1863 1864 /* 1865 * Check response. 1866 */ 1867 ciss_report_request(cr, &command_status, NULL); 1868 switch(command_status) { 1869 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1870 /* we should get a logical drive status changed event here */ 1871 break; 1872 default: 1873 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1874 ciss_name_command_status(command_status)); 1875 break; 1876 } 1877 1878 out: 1879 if (cr != NULL) 1880 ciss_release_request(cr); 1881 return(error); 1882 } 1883 1884 /************************************************************************ 1885 * Release adapter resources. 1886 */ 1887 static void 1888 ciss_free(struct ciss_softc *sc) 1889 { 1890 struct ciss_request *cr; 1891 int i, j; 1892 1893 debug_called(1); 1894 1895 /* we're going away */ 1896 sc->ciss_flags |= CISS_FLAG_ABORTING; 1897 1898 /* terminate the periodic heartbeat routine */ 1899 callout_stop(&sc->ciss_periodic); 1900 1901 /* cancel the Event Notify chain */ 1902 ciss_notify_abort(sc); 1903 1904 ciss_kill_notify_thread(sc); 1905 1906 /* disconnect from CAM */ 1907 if (sc->ciss_cam_sim) { 1908 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1909 if (sc->ciss_cam_sim[i]) { 1910 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1911 cam_sim_free(sc->ciss_cam_sim[i], 0); 1912 } 1913 } 1914 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1915 CISS_PHYSICAL_BASE; i++) { 1916 if (sc->ciss_cam_sim[i]) { 1917 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1918 cam_sim_free(sc->ciss_cam_sim[i], 0); 1919 } 1920 } 1921 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1922 } 1923 if (sc->ciss_cam_devq) 1924 cam_simq_free(sc->ciss_cam_devq); 1925 1926 /* remove the control device */ 1927 mtx_unlock(&sc->ciss_mtx); 1928 if (sc->ciss_dev_t != NULL) 1929 destroy_dev(sc->ciss_dev_t); 1930 1931 /* Final cleanup of the callout. */ 1932 callout_drain(&sc->ciss_periodic); 1933 mtx_destroy(&sc->ciss_mtx); 1934 1935 /* free the controller data */ 1936 if (sc->ciss_id != NULL) 1937 free(sc->ciss_id, CISS_MALLOC_CLASS); 1938 1939 /* release I/O resources */ 1940 if (sc->ciss_regs_resource != NULL) 1941 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1942 sc->ciss_regs_rid, sc->ciss_regs_resource); 1943 if (sc->ciss_cfg_resource != NULL) 1944 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1945 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1946 if (sc->ciss_intr != NULL) 1947 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1948 if (sc->ciss_irq_resource != NULL) 1949 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1950 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1951 if (sc->ciss_msi) 1952 pci_release_msi(sc->ciss_dev); 1953 1954 while ((cr = ciss_dequeue_free(sc)) != NULL) 1955 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1956 if (sc->ciss_buffer_dmat) 1957 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1958 1959 /* destroy command memory and DMA tag */ 1960 if (sc->ciss_command != NULL) { 1961 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1962 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1963 } 1964 if (sc->ciss_command_dmat) 1965 bus_dma_tag_destroy(sc->ciss_command_dmat); 1966 1967 if (sc->ciss_reply) { 1968 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1969 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1970 } 1971 if (sc->ciss_reply_dmat) 1972 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1973 1974 /* destroy DMA tags */ 1975 if (sc->ciss_parent_dmat) 1976 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1977 if (sc->ciss_logical) { 1978 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1979 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1980 if (sc->ciss_logical[i][j].cl_ldrive) 1981 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1982 if (sc->ciss_logical[i][j].cl_lstatus) 1983 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1984 } 1985 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1986 } 1987 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1988 } 1989 1990 if (sc->ciss_physical) { 1991 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1992 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1993 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1994 } 1995 1996 if (sc->ciss_controllers) 1997 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1998 1999 } 2000 2001 /************************************************************************ 2002 * Give a command to the adapter. 2003 * 2004 * Note that this uses the simple transport layer directly. If we 2005 * want to add support for other layers, we'll need a switch of some 2006 * sort. 2007 * 2008 * Note that the simple transport layer has no way of refusing a 2009 * command; we only have as many request structures as the adapter 2010 * supports commands, so we don't have to check (this presumes that 2011 * the adapter can handle commands as fast as we throw them at it). 2012 */ 2013 static int 2014 ciss_start(struct ciss_request *cr) 2015 { 2016 struct ciss_command *cc; /* XXX debugging only */ 2017 int error; 2018 2019 cc = cr->cr_cc; 2020 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2021 2022 /* 2023 * Map the request's data. 2024 */ 2025 if ((error = ciss_map_request(cr))) 2026 return(error); 2027 2028 #if 0 2029 ciss_print_request(cr); 2030 #endif 2031 2032 return(0); 2033 } 2034 2035 /************************************************************************ 2036 * Fetch completed request(s) from the adapter, queue them for 2037 * completion handling. 2038 * 2039 * Note that this uses the simple transport layer directly. If we 2040 * want to add support for other layers, we'll need a switch of some 2041 * sort. 2042 * 2043 * Note that the simple transport mechanism does not require any 2044 * reentrancy protection; the OPQ read is atomic. If there is a 2045 * chance of a race with something else that might move the request 2046 * off the busy list, then we will have to lock against that 2047 * (eg. timeouts, etc.) 2048 */ 2049 static void 2050 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2051 { 2052 struct ciss_request *cr; 2053 struct ciss_command *cc; 2054 u_int32_t tag, index; 2055 2056 debug_called(3); 2057 2058 /* 2059 * Loop quickly taking requests from the adapter and moving them 2060 * to the completed queue. 2061 */ 2062 for (;;) { 2063 2064 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2065 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2066 break; 2067 index = tag >> 2; 2068 debug(2, "completed command %d%s", index, 2069 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2070 if (index >= sc->ciss_max_requests) { 2071 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2072 continue; 2073 } 2074 cr = &(sc->ciss_request[index]); 2075 cc = cr->cr_cc; 2076 cc->header.host_tag = tag; /* not updated by adapter */ 2077 ciss_enqueue_complete(cr, qh); 2078 } 2079 2080 } 2081 2082 static void 2083 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2084 { 2085 struct ciss_request *cr; 2086 struct ciss_command *cc; 2087 u_int32_t tag, index; 2088 2089 debug_called(3); 2090 2091 /* 2092 * Loop quickly taking requests from the adapter and moving them 2093 * to the completed queue. 2094 */ 2095 for (;;) { 2096 tag = sc->ciss_reply[sc->ciss_rqidx]; 2097 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2098 break; 2099 index = tag >> 2; 2100 debug(2, "completed command %d%s\n", index, 2101 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2102 if (index < sc->ciss_max_requests) { 2103 cr = &(sc->ciss_request[index]); 2104 cc = cr->cr_cc; 2105 cc->header.host_tag = tag; /* not updated by adapter */ 2106 ciss_enqueue_complete(cr, qh); 2107 } else { 2108 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2109 } 2110 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2111 sc->ciss_rqidx = 0; 2112 sc->ciss_cycle ^= 1; 2113 } 2114 } 2115 2116 } 2117 2118 /************************************************************************ 2119 * Take an interrupt from the adapter. 2120 */ 2121 static void 2122 ciss_intr(void *arg) 2123 { 2124 cr_qhead_t qh; 2125 struct ciss_softc *sc = (struct ciss_softc *)arg; 2126 2127 /* 2128 * The only interrupt we recognise indicates that there are 2129 * entries in the outbound post queue. 2130 */ 2131 STAILQ_INIT(&qh); 2132 ciss_done(sc, &qh); 2133 mtx_lock(&sc->ciss_mtx); 2134 ciss_complete(sc, &qh); 2135 mtx_unlock(&sc->ciss_mtx); 2136 } 2137 2138 static void 2139 ciss_perf_intr(void *arg) 2140 { 2141 struct ciss_softc *sc = (struct ciss_softc *)arg; 2142 2143 /* Clear the interrupt and flush the bridges. Docs say that the flush 2144 * needs to be done twice, which doesn't seem right. 2145 */ 2146 CISS_TL_PERF_CLEAR_INT(sc); 2147 CISS_TL_PERF_FLUSH_INT(sc); 2148 2149 ciss_perf_msi_intr(sc); 2150 } 2151 2152 static void 2153 ciss_perf_msi_intr(void *arg) 2154 { 2155 cr_qhead_t qh; 2156 struct ciss_softc *sc = (struct ciss_softc *)arg; 2157 2158 STAILQ_INIT(&qh); 2159 ciss_perf_done(sc, &qh); 2160 mtx_lock(&sc->ciss_mtx); 2161 ciss_complete(sc, &qh); 2162 mtx_unlock(&sc->ciss_mtx); 2163 } 2164 2165 2166 /************************************************************************ 2167 * Process completed requests. 2168 * 2169 * Requests can be completed in three fashions: 2170 * 2171 * - by invoking a callback function (cr_complete is non-null) 2172 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2173 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2174 */ 2175 static void 2176 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2177 { 2178 struct ciss_request *cr; 2179 2180 debug_called(2); 2181 2182 /* 2183 * Loop taking requests off the completed queue and performing 2184 * completion processing on them. 2185 */ 2186 for (;;) { 2187 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2188 break; 2189 ciss_unmap_request(cr); 2190 2191 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2192 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2193 cr->cr_flags &= ~CISS_REQ_BUSY; 2194 2195 /* 2196 * If the request has a callback, invoke it. 2197 */ 2198 if (cr->cr_complete != NULL) { 2199 cr->cr_complete(cr); 2200 continue; 2201 } 2202 2203 /* 2204 * If someone is sleeping on this request, wake them up. 2205 */ 2206 if (cr->cr_flags & CISS_REQ_SLEEP) { 2207 cr->cr_flags &= ~CISS_REQ_SLEEP; 2208 wakeup(cr); 2209 continue; 2210 } 2211 2212 /* 2213 * If someone is polling this request for completion, signal. 2214 */ 2215 if (cr->cr_flags & CISS_REQ_POLL) { 2216 cr->cr_flags &= ~CISS_REQ_POLL; 2217 continue; 2218 } 2219 2220 /* 2221 * Give up and throw the request back on the free queue. This 2222 * should never happen; resources will probably be lost. 2223 */ 2224 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2225 ciss_enqueue_free(cr); 2226 } 2227 } 2228 2229 /************************************************************************ 2230 * Report on the completion status of a request, and pass back SCSI 2231 * and command status values. 2232 */ 2233 static int 2234 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2235 { 2236 struct ciss_command *cc; 2237 struct ciss_error_info *ce; 2238 2239 debug_called(2); 2240 2241 cc = cr->cr_cc; 2242 ce = (struct ciss_error_info *)&(cc->sg[0]); 2243 2244 /* 2245 * We don't consider data under/overrun an error for the Report 2246 * Logical/Physical LUNs commands. 2247 */ 2248 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2249 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2250 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2251 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2252 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2253 (cc->cdb.cdb[0] == INQUIRY))) { 2254 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2255 debug(2, "ignoring irrelevant under/overrun error"); 2256 } 2257 2258 /* 2259 * Check the command's error bit, if clear, there's no status and 2260 * everything is OK. 2261 */ 2262 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2263 if (scsi_status != NULL) 2264 *scsi_status = SCSI_STATUS_OK; 2265 if (command_status != NULL) 2266 *command_status = CISS_CMD_STATUS_SUCCESS; 2267 return(0); 2268 } else { 2269 if (command_status != NULL) 2270 *command_status = ce->command_status; 2271 if (scsi_status != NULL) { 2272 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2273 *scsi_status = ce->scsi_status; 2274 } else { 2275 *scsi_status = -1; 2276 } 2277 } 2278 if (bootverbose) 2279 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2280 ce->command_status, ciss_name_command_status(ce->command_status), 2281 ce->scsi_status); 2282 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2283 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2284 ce->additional_error_info.invalid_command.offense_size, 2285 ce->additional_error_info.invalid_command.offense_offset, 2286 ce->additional_error_info.invalid_command.offense_value, 2287 func); 2288 } 2289 } 2290 #if 0 2291 ciss_print_request(cr); 2292 #endif 2293 return(1); 2294 } 2295 2296 /************************************************************************ 2297 * Issue a request and don't return until it's completed. 2298 * 2299 * Depending on adapter status, we may poll or sleep waiting for 2300 * completion. 2301 */ 2302 static int 2303 ciss_synch_request(struct ciss_request *cr, int timeout) 2304 { 2305 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2306 return(ciss_wait_request(cr, timeout)); 2307 } else { 2308 return(ciss_poll_request(cr, timeout)); 2309 } 2310 } 2311 2312 /************************************************************************ 2313 * Issue a request and poll for completion. 2314 * 2315 * Timeout in milliseconds. 2316 */ 2317 static int 2318 ciss_poll_request(struct ciss_request *cr, int timeout) 2319 { 2320 cr_qhead_t qh; 2321 struct ciss_softc *sc; 2322 int error; 2323 2324 debug_called(2); 2325 2326 STAILQ_INIT(&qh); 2327 sc = cr->cr_sc; 2328 cr->cr_flags |= CISS_REQ_POLL; 2329 if ((error = ciss_start(cr)) != 0) 2330 return(error); 2331 2332 do { 2333 if (sc->ciss_perf) 2334 ciss_perf_done(sc, &qh); 2335 else 2336 ciss_done(sc, &qh); 2337 ciss_complete(sc, &qh); 2338 if (!(cr->cr_flags & CISS_REQ_POLL)) 2339 return(0); 2340 DELAY(1000); 2341 } while (timeout-- >= 0); 2342 return(EWOULDBLOCK); 2343 } 2344 2345 /************************************************************************ 2346 * Issue a request and sleep waiting for completion. 2347 * 2348 * Timeout in milliseconds. Note that a spurious wakeup will reset 2349 * the timeout. 2350 */ 2351 static int 2352 ciss_wait_request(struct ciss_request *cr, int timeout) 2353 { 2354 int error; 2355 2356 debug_called(2); 2357 2358 cr->cr_flags |= CISS_REQ_SLEEP; 2359 if ((error = ciss_start(cr)) != 0) 2360 return(error); 2361 2362 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2363 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2364 } 2365 return(error); 2366 } 2367 2368 #if 0 2369 /************************************************************************ 2370 * Abort a request. Note that a potential exists here to race the 2371 * request being completed; the caller must deal with this. 2372 */ 2373 static int 2374 ciss_abort_request(struct ciss_request *ar) 2375 { 2376 struct ciss_request *cr; 2377 struct ciss_command *cc; 2378 struct ciss_message_cdb *cmc; 2379 int error; 2380 2381 debug_called(1); 2382 2383 /* get a request */ 2384 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2385 return(error); 2386 2387 /* build the abort command */ 2388 cc = cr->cr_cc; 2389 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2390 cc->header.address.physical.target = 0; 2391 cc->header.address.physical.bus = 0; 2392 cc->cdb.cdb_length = sizeof(*cmc); 2393 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2394 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2395 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2396 cc->cdb.timeout = 30; 2397 2398 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2399 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2400 cmc->type = CISS_MESSAGE_ABORT_TASK; 2401 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2402 2403 /* 2404 * Send the request and wait for a response. If we believe we 2405 * aborted the request OK, clear the flag that indicates it's 2406 * running. 2407 */ 2408 error = ciss_synch_request(cr, 35 * 1000); 2409 if (!error) 2410 error = ciss_report_request(cr, NULL, NULL); 2411 ciss_release_request(cr); 2412 2413 return(error); 2414 } 2415 #endif 2416 2417 2418 /************************************************************************ 2419 * Fetch and initialise a request 2420 */ 2421 static int 2422 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2423 { 2424 struct ciss_request *cr; 2425 2426 debug_called(2); 2427 2428 /* 2429 * Get a request and clean it up. 2430 */ 2431 if ((cr = ciss_dequeue_free(sc)) == NULL) 2432 return(ENOMEM); 2433 2434 cr->cr_data = NULL; 2435 cr->cr_flags = 0; 2436 cr->cr_complete = NULL; 2437 cr->cr_private = NULL; 2438 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2439 2440 ciss_preen_command(cr); 2441 *crp = cr; 2442 return(0); 2443 } 2444 2445 static void 2446 ciss_preen_command(struct ciss_request *cr) 2447 { 2448 struct ciss_command *cc; 2449 u_int32_t cmdphys; 2450 2451 /* 2452 * Clean up the command structure. 2453 * 2454 * Note that we set up the error_info structure here, since the 2455 * length can be overwritten by any command. 2456 */ 2457 cc = cr->cr_cc; 2458 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2459 cc->header.sg_total = 0; 2460 cc->header.host_tag = cr->cr_tag << 2; 2461 cc->header.host_tag_zeroes = 0; 2462 cmdphys = cr->cr_ccphys; 2463 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2464 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2465 } 2466 2467 /************************************************************************ 2468 * Release a request to the free list. 2469 */ 2470 static void 2471 ciss_release_request(struct ciss_request *cr) 2472 { 2473 struct ciss_softc *sc; 2474 2475 debug_called(2); 2476 2477 sc = cr->cr_sc; 2478 2479 /* release the request to the free queue */ 2480 ciss_requeue_free(cr); 2481 } 2482 2483 /************************************************************************ 2484 * Allocate a request that will be used to send a BMIC command. Do some 2485 * of the common setup here to avoid duplicating it everywhere else. 2486 */ 2487 static int 2488 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2489 int opcode, void **bufp, size_t bufsize) 2490 { 2491 struct ciss_request *cr; 2492 struct ciss_command *cc; 2493 struct ciss_bmic_cdb *cbc; 2494 void *buf; 2495 int error; 2496 int dataout; 2497 2498 debug_called(2); 2499 2500 cr = NULL; 2501 buf = NULL; 2502 2503 /* 2504 * Get a request. 2505 */ 2506 if ((error = ciss_get_request(sc, &cr)) != 0) 2507 goto out; 2508 2509 /* 2510 * Allocate data storage if requested, determine the data direction. 2511 */ 2512 dataout = 0; 2513 if ((bufsize > 0) && (bufp != NULL)) { 2514 if (*bufp == NULL) { 2515 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2516 error = ENOMEM; 2517 goto out; 2518 } 2519 } else { 2520 buf = *bufp; 2521 dataout = 1; /* we are given a buffer, so we are writing */ 2522 } 2523 } 2524 2525 /* 2526 * Build a CISS BMIC command to get the logical drive ID. 2527 */ 2528 cr->cr_data = buf; 2529 cr->cr_length = bufsize; 2530 if (!dataout) 2531 cr->cr_flags = CISS_REQ_DATAIN; 2532 2533 cc = cr->cr_cc; 2534 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2535 cc->header.address.physical.bus = 0; 2536 cc->header.address.physical.target = 0; 2537 cc->cdb.cdb_length = sizeof(*cbc); 2538 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2539 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2540 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2541 cc->cdb.timeout = 0; 2542 2543 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2544 bzero(cbc, sizeof(*cbc)); 2545 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2546 cbc->bmic_opcode = opcode; 2547 cbc->size = htons((u_int16_t)bufsize); 2548 2549 out: 2550 if (error) { 2551 if (cr != NULL) 2552 ciss_release_request(cr); 2553 } else { 2554 *crp = cr; 2555 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2556 *bufp = buf; 2557 } 2558 return(error); 2559 } 2560 2561 /************************************************************************ 2562 * Handle a command passed in from userspace. 2563 */ 2564 static int 2565 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2566 { 2567 struct ciss_request *cr; 2568 struct ciss_command *cc; 2569 struct ciss_error_info *ce; 2570 int error = 0; 2571 2572 debug_called(1); 2573 2574 cr = NULL; 2575 2576 /* 2577 * Get a request. 2578 */ 2579 while (ciss_get_request(sc, &cr) != 0) 2580 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2581 cc = cr->cr_cc; 2582 2583 /* 2584 * Allocate an in-kernel databuffer if required, copy in user data. 2585 */ 2586 mtx_unlock(&sc->ciss_mtx); 2587 cr->cr_length = ioc->buf_size; 2588 if (ioc->buf_size > 0) { 2589 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2590 error = ENOMEM; 2591 goto out_unlocked; 2592 } 2593 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2594 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2595 goto out_unlocked; 2596 } 2597 } 2598 2599 /* 2600 * Build the request based on the user command. 2601 */ 2602 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2603 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2604 2605 /* XXX anything else to populate here? */ 2606 mtx_lock(&sc->ciss_mtx); 2607 2608 /* 2609 * Run the command. 2610 */ 2611 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2612 debug(0, "request failed - %d", error); 2613 goto out; 2614 } 2615 2616 /* 2617 * Check to see if the command succeeded. 2618 */ 2619 ce = (struct ciss_error_info *)&(cc->sg[0]); 2620 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2621 bzero(ce, sizeof(*ce)); 2622 2623 /* 2624 * Copy the results back to the user. 2625 */ 2626 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2627 mtx_unlock(&sc->ciss_mtx); 2628 if ((ioc->buf_size > 0) && 2629 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2630 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2631 goto out_unlocked; 2632 } 2633 2634 /* done OK */ 2635 error = 0; 2636 2637 out_unlocked: 2638 mtx_lock(&sc->ciss_mtx); 2639 2640 out: 2641 if ((cr != NULL) && (cr->cr_data != NULL)) 2642 free(cr->cr_data, CISS_MALLOC_CLASS); 2643 if (cr != NULL) 2644 ciss_release_request(cr); 2645 return(error); 2646 } 2647 2648 /************************************************************************ 2649 * Map a request into bus-visible space, initialise the scatter/gather 2650 * list. 2651 */ 2652 static int 2653 ciss_map_request(struct ciss_request *cr) 2654 { 2655 struct ciss_softc *sc; 2656 int error = 0; 2657 2658 debug_called(2); 2659 2660 sc = cr->cr_sc; 2661 2662 /* check that mapping is necessary */ 2663 if (cr->cr_flags & CISS_REQ_MAPPED) 2664 return(0); 2665 2666 cr->cr_flags |= CISS_REQ_MAPPED; 2667 2668 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2669 BUS_DMASYNC_PREWRITE); 2670 2671 if (cr->cr_data != NULL) { 2672 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2673 cr->cr_data, cr->cr_length, 2674 ciss_request_map_helper, cr, 0); 2675 if (error != 0) 2676 return (error); 2677 } else { 2678 /* 2679 * Post the command to the adapter. 2680 */ 2681 cr->cr_sg_tag = CISS_SG_NONE; 2682 cr->cr_flags |= CISS_REQ_BUSY; 2683 if (sc->ciss_perf) 2684 CISS_TL_PERF_POST_CMD(sc, cr); 2685 else 2686 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2687 } 2688 2689 return(0); 2690 } 2691 2692 static void 2693 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2694 { 2695 struct ciss_command *cc; 2696 struct ciss_request *cr; 2697 struct ciss_softc *sc; 2698 int i; 2699 2700 debug_called(2); 2701 2702 cr = (struct ciss_request *)arg; 2703 sc = cr->cr_sc; 2704 cc = cr->cr_cc; 2705 2706 for (i = 0; i < nseg; i++) { 2707 cc->sg[i].address = segs[i].ds_addr; 2708 cc->sg[i].length = segs[i].ds_len; 2709 cc->sg[i].extension = 0; 2710 } 2711 /* we leave the s/g table entirely within the command */ 2712 cc->header.sg_in_list = nseg; 2713 cc->header.sg_total = nseg; 2714 2715 if (cr->cr_flags & CISS_REQ_DATAIN) 2716 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2717 if (cr->cr_flags & CISS_REQ_DATAOUT) 2718 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2719 2720 if (nseg == 0) 2721 cr->cr_sg_tag = CISS_SG_NONE; 2722 else if (nseg == 1) 2723 cr->cr_sg_tag = CISS_SG_1; 2724 else if (nseg == 2) 2725 cr->cr_sg_tag = CISS_SG_2; 2726 else if (nseg <= 4) 2727 cr->cr_sg_tag = CISS_SG_4; 2728 else if (nseg <= 8) 2729 cr->cr_sg_tag = CISS_SG_8; 2730 else if (nseg <= 16) 2731 cr->cr_sg_tag = CISS_SG_16; 2732 else if (nseg <= 32) 2733 cr->cr_sg_tag = CISS_SG_32; 2734 else 2735 cr->cr_sg_tag = CISS_SG_MAX; 2736 2737 /* 2738 * Post the command to the adapter. 2739 */ 2740 cr->cr_flags |= CISS_REQ_BUSY; 2741 if (sc->ciss_perf) 2742 CISS_TL_PERF_POST_CMD(sc, cr); 2743 else 2744 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2745 } 2746 2747 /************************************************************************ 2748 * Unmap a request from bus-visible space. 2749 */ 2750 static void 2751 ciss_unmap_request(struct ciss_request *cr) 2752 { 2753 struct ciss_softc *sc; 2754 2755 debug_called(2); 2756 2757 sc = cr->cr_sc; 2758 2759 /* check that unmapping is necessary */ 2760 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2761 return; 2762 2763 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2764 BUS_DMASYNC_POSTWRITE); 2765 2766 if (cr->cr_data == NULL) 2767 goto out; 2768 2769 if (cr->cr_flags & CISS_REQ_DATAIN) 2770 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2771 if (cr->cr_flags & CISS_REQ_DATAOUT) 2772 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2773 2774 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2775 out: 2776 cr->cr_flags &= ~CISS_REQ_MAPPED; 2777 } 2778 2779 /************************************************************************ 2780 * Attach the driver to CAM. 2781 * 2782 * We put all the logical drives on a single SCSI bus. 2783 */ 2784 static int 2785 ciss_cam_init(struct ciss_softc *sc) 2786 { 2787 int i, maxbus; 2788 2789 debug_called(1); 2790 2791 /* 2792 * Allocate a devq. We can reuse this for the masked physical 2793 * devices if we decide to export these as well. 2794 */ 2795 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2796 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2797 return(ENOMEM); 2798 } 2799 2800 /* 2801 * Create a SIM. 2802 * 2803 * This naturally wastes a bit of memory. The alternative is to allocate 2804 * and register each bus as it is found, and then track them on a linked 2805 * list. Unfortunately, the driver has a few places where it needs to 2806 * look up the SIM based solely on bus number, and it's unclear whether 2807 * a list traversal would work for these situations. 2808 */ 2809 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2810 CISS_PHYSICAL_BASE); 2811 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2812 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2813 if (sc->ciss_cam_sim == NULL) { 2814 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2815 return(ENOMEM); 2816 } 2817 2818 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2819 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2820 "ciss", sc, 2821 device_get_unit(sc->ciss_dev), 2822 &sc->ciss_mtx, 2823 2, 2824 sc->ciss_max_requests - 2, 2825 sc->ciss_cam_devq)) == NULL) { 2826 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2827 return(ENOMEM); 2828 } 2829 2830 /* 2831 * Register bus with this SIM. 2832 */ 2833 mtx_lock(&sc->ciss_mtx); 2834 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2835 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2836 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2837 mtx_unlock(&sc->ciss_mtx); 2838 return (ENXIO); 2839 } 2840 } 2841 mtx_unlock(&sc->ciss_mtx); 2842 } 2843 2844 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2845 CISS_PHYSICAL_BASE; i++) { 2846 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2847 "ciss", sc, 2848 device_get_unit(sc->ciss_dev), 2849 &sc->ciss_mtx, 1, 2850 sc->ciss_max_requests - 2, 2851 sc->ciss_cam_devq)) == NULL) { 2852 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2853 return (ENOMEM); 2854 } 2855 2856 mtx_lock(&sc->ciss_mtx); 2857 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2858 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2859 mtx_unlock(&sc->ciss_mtx); 2860 return (ENXIO); 2861 } 2862 mtx_unlock(&sc->ciss_mtx); 2863 } 2864 2865 return(0); 2866 } 2867 2868 /************************************************************************ 2869 * Initiate a rescan of the 'logical devices' SIM 2870 */ 2871 static void 2872 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2873 { 2874 union ccb *ccb; 2875 2876 debug_called(1); 2877 2878 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2879 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2880 return; 2881 } 2882 2883 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2884 cam_sim_path(sc->ciss_cam_sim[bus]), 2885 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2886 ciss_printf(sc, "rescan failed (can't create path)\n"); 2887 xpt_free_ccb(ccb); 2888 return; 2889 } 2890 xpt_rescan(ccb); 2891 /* scan is now in progress */ 2892 } 2893 2894 /************************************************************************ 2895 * Handle requests coming from CAM 2896 */ 2897 static void 2898 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2899 { 2900 struct ciss_softc *sc; 2901 struct ccb_scsiio *csio; 2902 int bus, target; 2903 int physical; 2904 2905 sc = cam_sim_softc(sim); 2906 bus = cam_sim_bus(sim); 2907 csio = (struct ccb_scsiio *)&ccb->csio; 2908 target = csio->ccb_h.target_id; 2909 physical = CISS_IS_PHYSICAL(bus); 2910 2911 switch (ccb->ccb_h.func_code) { 2912 2913 /* perform SCSI I/O */ 2914 case XPT_SCSI_IO: 2915 if (!ciss_cam_action_io(sim, csio)) 2916 return; 2917 break; 2918 2919 /* perform geometry calculations */ 2920 case XPT_CALC_GEOMETRY: 2921 { 2922 struct ccb_calc_geometry *ccg = &ccb->ccg; 2923 struct ciss_ldrive *ld; 2924 2925 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2926 2927 ld = NULL; 2928 if (!physical) 2929 ld = &sc->ciss_logical[bus][target]; 2930 2931 /* 2932 * Use the cached geometry settings unless the fault tolerance 2933 * is invalid. 2934 */ 2935 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2936 u_int32_t secs_per_cylinder; 2937 2938 ccg->heads = 255; 2939 ccg->secs_per_track = 32; 2940 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2941 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2942 } else { 2943 ccg->heads = ld->cl_geometry.heads; 2944 ccg->secs_per_track = ld->cl_geometry.sectors; 2945 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2946 } 2947 ccb->ccb_h.status = CAM_REQ_CMP; 2948 break; 2949 } 2950 2951 /* handle path attribute inquiry */ 2952 case XPT_PATH_INQ: 2953 { 2954 struct ccb_pathinq *cpi = &ccb->cpi; 2955 2956 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2957 2958 cpi->version_num = 1; 2959 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2960 cpi->target_sprt = 0; 2961 cpi->hba_misc = 0; 2962 cpi->max_target = CISS_MAX_LOGICAL; 2963 cpi->max_lun = 0; /* 'logical drive' channel only */ 2964 cpi->initiator_id = CISS_MAX_LOGICAL; 2965 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2966 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2967 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2968 cpi->unit_number = cam_sim_unit(sim); 2969 cpi->bus_id = cam_sim_bus(sim); 2970 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2971 cpi->transport = XPORT_SPI; 2972 cpi->transport_version = 2; 2973 cpi->protocol = PROTO_SCSI; 2974 cpi->protocol_version = SCSI_REV_2; 2975 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2976 ccb->ccb_h.status = CAM_REQ_CMP; 2977 break; 2978 } 2979 2980 case XPT_GET_TRAN_SETTINGS: 2981 { 2982 struct ccb_trans_settings *cts = &ccb->cts; 2983 int bus, target; 2984 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2985 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2986 2987 bus = cam_sim_bus(sim); 2988 target = cts->ccb_h.target_id; 2989 2990 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2991 /* disconnect always OK */ 2992 cts->protocol = PROTO_SCSI; 2993 cts->protocol_version = SCSI_REV_2; 2994 cts->transport = XPORT_SPI; 2995 cts->transport_version = 2; 2996 2997 spi->valid = CTS_SPI_VALID_DISC; 2998 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2999 3000 scsi->valid = CTS_SCSI_VALID_TQ; 3001 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3002 3003 cts->ccb_h.status = CAM_REQ_CMP; 3004 break; 3005 } 3006 3007 default: /* we can't do this */ 3008 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3009 ccb->ccb_h.status = CAM_REQ_INVALID; 3010 break; 3011 } 3012 3013 xpt_done(ccb); 3014 } 3015 3016 /************************************************************************ 3017 * Handle a CAM SCSI I/O request. 3018 */ 3019 static int 3020 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3021 { 3022 struct ciss_softc *sc; 3023 int bus, target; 3024 struct ciss_request *cr; 3025 struct ciss_command *cc; 3026 int error; 3027 3028 sc = cam_sim_softc(sim); 3029 bus = cam_sim_bus(sim); 3030 target = csio->ccb_h.target_id; 3031 3032 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3033 3034 /* check that the CDB pointer is not to a physical address */ 3035 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3036 debug(3, " CDB pointer is to physical address"); 3037 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3038 } 3039 3040 /* if there is data transfer, it must be to/from a virtual address */ 3041 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3042 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3043 debug(3, " data pointer is to physical address"); 3044 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3045 } 3046 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3047 debug(3, " data has premature s/g setup"); 3048 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3049 } 3050 } 3051 3052 /* abandon aborted ccbs or those that have failed validation */ 3053 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3054 debug(3, "abandoning CCB due to abort/validation failure"); 3055 return(EINVAL); 3056 } 3057 3058 /* handle emulation of some SCSI commands ourself */ 3059 if (ciss_cam_emulate(sc, csio)) 3060 return(0); 3061 3062 /* 3063 * Get a request to manage this command. If we can't, return the 3064 * ccb, freeze the queue and flag so that we unfreeze it when a 3065 * request completes. 3066 */ 3067 if ((error = ciss_get_request(sc, &cr)) != 0) { 3068 xpt_freeze_simq(sim, 1); 3069 sc->ciss_flags |= CISS_FLAG_BUSY; 3070 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3071 return(error); 3072 } 3073 3074 /* 3075 * Build the command. 3076 */ 3077 cc = cr->cr_cc; 3078 cr->cr_data = csio->data_ptr; 3079 cr->cr_length = csio->dxfer_len; 3080 cr->cr_complete = ciss_cam_complete; 3081 cr->cr_private = csio; 3082 3083 /* 3084 * Target the right logical volume. 3085 */ 3086 if (CISS_IS_PHYSICAL(bus)) 3087 cc->header.address = 3088 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3089 else 3090 cc->header.address = 3091 sc->ciss_logical[bus][target].cl_address; 3092 cc->cdb.cdb_length = csio->cdb_len; 3093 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3094 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3095 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3096 cr->cr_flags = CISS_REQ_DATAOUT; 3097 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3098 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3099 cr->cr_flags = CISS_REQ_DATAIN; 3100 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3101 } else { 3102 cr->cr_flags = 0; 3103 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3104 } 3105 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3106 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3107 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3108 } else { 3109 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3110 } 3111 3112 /* 3113 * Submit the request to the adapter. 3114 * 3115 * Note that this may fail if we're unable to map the request (and 3116 * if we ever learn a transport layer other than simple, may fail 3117 * if the adapter rejects the command). 3118 */ 3119 if ((error = ciss_start(cr)) != 0) { 3120 xpt_freeze_simq(sim, 1); 3121 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3122 if (error == EINPROGRESS) { 3123 error = 0; 3124 } else { 3125 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3126 ciss_release_request(cr); 3127 } 3128 return(error); 3129 } 3130 3131 return(0); 3132 } 3133 3134 /************************************************************************ 3135 * Emulate SCSI commands the adapter doesn't handle as we might like. 3136 */ 3137 static int 3138 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3139 { 3140 int bus, target; 3141 u_int8_t opcode; 3142 3143 target = csio->ccb_h.target_id; 3144 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3145 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3146 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3147 3148 if (CISS_IS_PHYSICAL(bus)) { 3149 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3150 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3151 xpt_done((union ccb *)csio); 3152 return(1); 3153 } else 3154 return(0); 3155 } 3156 3157 /* 3158 * Handle requests for volumes that don't exist or are not online. 3159 * A selection timeout is slightly better than an illegal request. 3160 * Other errors might be better. 3161 */ 3162 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3163 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3164 xpt_done((union ccb *)csio); 3165 return(1); 3166 } 3167 3168 /* if we have to fake Synchronise Cache */ 3169 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3170 /* 3171 * If this is a Synchronise Cache command, typically issued when 3172 * a device is closed, flush the adapter and complete now. 3173 */ 3174 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3175 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3176 ciss_flush_adapter(sc); 3177 csio->ccb_h.status |= CAM_REQ_CMP; 3178 xpt_done((union ccb *)csio); 3179 return(1); 3180 } 3181 } 3182 3183 return(0); 3184 } 3185 3186 /************************************************************************ 3187 * Check for possibly-completed commands. 3188 */ 3189 static void 3190 ciss_cam_poll(struct cam_sim *sim) 3191 { 3192 cr_qhead_t qh; 3193 struct ciss_softc *sc = cam_sim_softc(sim); 3194 3195 debug_called(2); 3196 3197 STAILQ_INIT(&qh); 3198 if (sc->ciss_perf) 3199 ciss_perf_done(sc, &qh); 3200 else 3201 ciss_done(sc, &qh); 3202 ciss_complete(sc, &qh); 3203 } 3204 3205 /************************************************************************ 3206 * Handle completion of a command - pass results back through the CCB 3207 */ 3208 static void 3209 ciss_cam_complete(struct ciss_request *cr) 3210 { 3211 struct ciss_softc *sc; 3212 struct ciss_command *cc; 3213 struct ciss_error_info *ce; 3214 struct ccb_scsiio *csio; 3215 int scsi_status; 3216 int command_status; 3217 3218 debug_called(2); 3219 3220 sc = cr->cr_sc; 3221 cc = cr->cr_cc; 3222 ce = (struct ciss_error_info *)&(cc->sg[0]); 3223 csio = (struct ccb_scsiio *)cr->cr_private; 3224 3225 /* 3226 * Extract status values from request. 3227 */ 3228 ciss_report_request(cr, &command_status, &scsi_status); 3229 csio->scsi_status = scsi_status; 3230 3231 /* 3232 * Handle specific SCSI status values. 3233 */ 3234 switch(scsi_status) { 3235 /* no status due to adapter error */ 3236 case -1: 3237 debug(0, "adapter error"); 3238 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3239 break; 3240 3241 /* no status due to command completed OK */ 3242 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3243 debug(2, "SCSI_STATUS_OK"); 3244 csio->ccb_h.status |= CAM_REQ_CMP; 3245 break; 3246 3247 /* check condition, sense data included */ 3248 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3249 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3250 ce->sense_length, ce->residual_count); 3251 bzero(&csio->sense_data, SSD_FULL_SIZE); 3252 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3253 if (csio->sense_len > ce->sense_length) 3254 csio->sense_resid = csio->sense_len - ce->sense_length; 3255 else 3256 csio->sense_resid = 0; 3257 csio->resid = ce->residual_count; 3258 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3259 #ifdef CISS_DEBUG 3260 { 3261 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3262 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3263 csio->sense_resid, /*show_errors*/ 1)); 3264 } 3265 #endif 3266 break; 3267 3268 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3269 debug(0, "SCSI_STATUS_BUSY"); 3270 csio->ccb_h.status |= CAM_SCSI_BUSY; 3271 break; 3272 3273 default: 3274 debug(0, "unknown status 0x%x", csio->scsi_status); 3275 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3276 break; 3277 } 3278 3279 /* handle post-command fixup */ 3280 ciss_cam_complete_fixup(sc, csio); 3281 3282 ciss_release_request(cr); 3283 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3284 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3285 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3286 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3287 else 3288 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3289 } 3290 xpt_done((union ccb *)csio); 3291 } 3292 3293 /******************************************************************************** 3294 * Fix up the result of some commands here. 3295 */ 3296 static void 3297 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3298 { 3299 struct scsi_inquiry_data *inq; 3300 struct ciss_ldrive *cl; 3301 uint8_t *cdb; 3302 int bus, target; 3303 3304 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3305 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3306 if (cdb[0] == INQUIRY && 3307 (cdb[1] & SI_EVPD) == 0 && 3308 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3309 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3310 3311 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3312 target = csio->ccb_h.target_id; 3313 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3314 3315 /* 3316 * Don't let hard drives be seen by the DA driver. They will still be 3317 * attached by the PASS driver. 3318 */ 3319 if (CISS_IS_PHYSICAL(bus)) { 3320 if (SID_TYPE(inq) == T_DIRECT) 3321 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3322 return; 3323 } 3324 3325 cl = &sc->ciss_logical[bus][target]; 3326 3327 padstr(inq->vendor, "COMPAQ", 8); 3328 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3329 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3330 } 3331 } 3332 3333 3334 /******************************************************************************** 3335 * Find a peripheral attached at (target) 3336 */ 3337 static struct cam_periph * 3338 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3339 { 3340 struct cam_periph *periph; 3341 struct cam_path *path; 3342 int status; 3343 3344 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3345 target, 0); 3346 if (status == CAM_REQ_CMP) { 3347 periph = cam_periph_find(path, NULL); 3348 xpt_free_path(path); 3349 } else { 3350 periph = NULL; 3351 } 3352 return(periph); 3353 } 3354 3355 /******************************************************************************** 3356 * Name the device at (target) 3357 * 3358 * XXX is this strictly correct? 3359 */ 3360 static int 3361 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3362 { 3363 struct cam_periph *periph; 3364 3365 if (CISS_IS_PHYSICAL(bus)) 3366 return (0); 3367 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3368 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3369 periph->periph_name, periph->unit_number); 3370 return(0); 3371 } 3372 sc->ciss_logical[bus][target].cl_name[0] = 0; 3373 return(ENOENT); 3374 } 3375 3376 /************************************************************************ 3377 * Periodic status monitoring. 3378 */ 3379 static void 3380 ciss_periodic(void *arg) 3381 { 3382 struct ciss_softc *sc; 3383 struct ciss_request *cr = NULL; 3384 struct ciss_command *cc = NULL; 3385 int error = 0; 3386 3387 debug_called(1); 3388 3389 sc = (struct ciss_softc *)arg; 3390 3391 /* 3392 * Check the adapter heartbeat. 3393 */ 3394 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3395 sc->ciss_heart_attack++; 3396 debug(0, "adapter heart attack in progress 0x%x/%d", 3397 sc->ciss_heartbeat, sc->ciss_heart_attack); 3398 if (sc->ciss_heart_attack == 3) { 3399 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3400 ciss_disable_adapter(sc); 3401 return; 3402 } 3403 } else { 3404 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3405 sc->ciss_heart_attack = 0; 3406 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3407 } 3408 3409 /* 3410 * Send the NOP message and wait for a response. 3411 */ 3412 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3413 cc = cr->cr_cc; 3414 cr->cr_complete = ciss_nop_complete; 3415 cc->cdb.cdb_length = 1; 3416 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3417 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3418 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3419 cc->cdb.timeout = 0; 3420 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3421 3422 if ((error = ciss_start(cr)) != 0) { 3423 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3424 } 3425 } 3426 3427 /* 3428 * If the notify event request has died for some reason, or has 3429 * not started yet, restart it. 3430 */ 3431 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3432 debug(0, "(re)starting Event Notify chain"); 3433 ciss_notify_event(sc); 3434 } 3435 3436 /* 3437 * Reschedule. 3438 */ 3439 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3440 } 3441 3442 static void 3443 ciss_nop_complete(struct ciss_request *cr) 3444 { 3445 struct ciss_softc *sc; 3446 static int first_time = 1; 3447 3448 sc = cr->cr_sc; 3449 if (ciss_report_request(cr, NULL, NULL) != 0) { 3450 if (first_time == 1) { 3451 first_time = 0; 3452 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3453 } 3454 } 3455 3456 ciss_release_request(cr); 3457 } 3458 3459 /************************************************************************ 3460 * Disable the adapter. 3461 * 3462 * The all requests in completed queue is failed with hardware error. 3463 * This will cause failover in a multipath configuration. 3464 */ 3465 static void 3466 ciss_disable_adapter(struct ciss_softc *sc) 3467 { 3468 cr_qhead_t qh; 3469 struct ciss_request *cr; 3470 struct ciss_command *cc; 3471 struct ciss_error_info *ce; 3472 int i; 3473 3474 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3475 pci_disable_busmaster(sc->ciss_dev); 3476 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3477 3478 for (i = 1; i < sc->ciss_max_requests; i++) { 3479 cr = &sc->ciss_request[i]; 3480 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3481 continue; 3482 3483 cc = cr->cr_cc; 3484 ce = (struct ciss_error_info *)&(cc->sg[0]); 3485 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3486 ciss_enqueue_complete(cr, &qh); 3487 } 3488 3489 for (;;) { 3490 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3491 break; 3492 3493 /* 3494 * If the request has a callback, invoke it. 3495 */ 3496 if (cr->cr_complete != NULL) { 3497 cr->cr_complete(cr); 3498 continue; 3499 } 3500 3501 /* 3502 * If someone is sleeping on this request, wake them up. 3503 */ 3504 if (cr->cr_flags & CISS_REQ_SLEEP) { 3505 cr->cr_flags &= ~CISS_REQ_SLEEP; 3506 wakeup(cr); 3507 continue; 3508 } 3509 } 3510 } 3511 3512 /************************************************************************ 3513 * Request a notification response from the adapter. 3514 * 3515 * If (cr) is NULL, this is the first request of the adapter, so 3516 * reset the adapter's message pointer and start with the oldest 3517 * message available. 3518 */ 3519 static void 3520 ciss_notify_event(struct ciss_softc *sc) 3521 { 3522 struct ciss_request *cr; 3523 struct ciss_command *cc; 3524 struct ciss_notify_cdb *cnc; 3525 int error; 3526 3527 debug_called(1); 3528 3529 cr = sc->ciss_periodic_notify; 3530 3531 /* get a request if we don't already have one */ 3532 if (cr == NULL) { 3533 if ((error = ciss_get_request(sc, &cr)) != 0) { 3534 debug(0, "can't get notify event request"); 3535 goto out; 3536 } 3537 sc->ciss_periodic_notify = cr; 3538 cr->cr_complete = ciss_notify_complete; 3539 debug(1, "acquired request %d", cr->cr_tag); 3540 } 3541 3542 /* 3543 * Get a databuffer if we don't already have one, note that the 3544 * adapter command wants a larger buffer than the actual 3545 * structure. 3546 */ 3547 if (cr->cr_data == NULL) { 3548 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3549 debug(0, "can't get notify event request buffer"); 3550 error = ENOMEM; 3551 goto out; 3552 } 3553 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3554 } 3555 3556 /* re-setup the request's command (since we never release it) XXX overkill*/ 3557 ciss_preen_command(cr); 3558 3559 /* (re)build the notify event command */ 3560 cc = cr->cr_cc; 3561 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3562 cc->header.address.physical.bus = 0; 3563 cc->header.address.physical.target = 0; 3564 3565 cc->cdb.cdb_length = sizeof(*cnc); 3566 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3567 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3568 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3569 cc->cdb.timeout = 0; /* no timeout, we hope */ 3570 3571 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3572 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3573 cnc->opcode = CISS_OPCODE_READ; 3574 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3575 cnc->timeout = 0; /* no timeout, we hope */ 3576 cnc->synchronous = 0; 3577 cnc->ordered = 0; 3578 cnc->seek_to_oldest = 0; 3579 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3580 cnc->new_only = 1; 3581 else 3582 cnc->new_only = 0; 3583 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3584 3585 /* submit the request */ 3586 error = ciss_start(cr); 3587 3588 out: 3589 if (error) { 3590 if (cr != NULL) { 3591 if (cr->cr_data != NULL) 3592 free(cr->cr_data, CISS_MALLOC_CLASS); 3593 ciss_release_request(cr); 3594 } 3595 sc->ciss_periodic_notify = NULL; 3596 debug(0, "can't submit notify event request"); 3597 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3598 } else { 3599 debug(1, "notify event submitted"); 3600 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3601 } 3602 } 3603 3604 static void 3605 ciss_notify_complete(struct ciss_request *cr) 3606 { 3607 struct ciss_command *cc; 3608 struct ciss_notify *cn; 3609 struct ciss_softc *sc; 3610 int scsi_status; 3611 int command_status; 3612 debug_called(1); 3613 3614 cc = cr->cr_cc; 3615 cn = (struct ciss_notify *)cr->cr_data; 3616 sc = cr->cr_sc; 3617 3618 /* 3619 * Report request results, decode status. 3620 */ 3621 ciss_report_request(cr, &command_status, &scsi_status); 3622 3623 /* 3624 * Abort the chain on a fatal error. 3625 * 3626 * XXX which of these are actually errors? 3627 */ 3628 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3629 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3630 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3631 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3632 ciss_name_command_status(command_status)); 3633 ciss_release_request(cr); 3634 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3635 return; 3636 } 3637 3638 /* 3639 * If the adapter gave us a text message, print it. 3640 */ 3641 if (cn->message[0] != 0) 3642 ciss_printf(sc, "*** %.80s\n", cn->message); 3643 3644 debug(0, "notify event class %d subclass %d detail %d", 3645 cn->class, cn->subclass, cn->detail); 3646 3647 /* 3648 * If the response indicates that the notifier has been aborted, 3649 * release the notifier command. 3650 */ 3651 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3652 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3653 (cn->detail == 1)) { 3654 debug(0, "notifier exiting"); 3655 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3656 ciss_release_request(cr); 3657 sc->ciss_periodic_notify = NULL; 3658 wakeup(&sc->ciss_periodic_notify); 3659 } else { 3660 /* Handle notify events in a kernel thread */ 3661 ciss_enqueue_notify(cr); 3662 sc->ciss_periodic_notify = NULL; 3663 wakeup(&sc->ciss_periodic_notify); 3664 wakeup(&sc->ciss_notify); 3665 } 3666 /* 3667 * Send a new notify event command, if we're not aborting. 3668 */ 3669 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3670 ciss_notify_event(sc); 3671 } 3672 } 3673 3674 /************************************************************************ 3675 * Abort the Notify Event chain. 3676 * 3677 * Note that we can't just abort the command in progress; we have to 3678 * explicitly issue an Abort Notify Event command in order for the 3679 * adapter to clean up correctly. 3680 * 3681 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3682 * the chain will not restart itself. 3683 */ 3684 static int 3685 ciss_notify_abort(struct ciss_softc *sc) 3686 { 3687 struct ciss_request *cr; 3688 struct ciss_command *cc; 3689 struct ciss_notify_cdb *cnc; 3690 int error, command_status, scsi_status; 3691 3692 debug_called(1); 3693 3694 cr = NULL; 3695 error = 0; 3696 3697 /* verify that there's an outstanding command */ 3698 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3699 goto out; 3700 3701 /* get a command to issue the abort with */ 3702 if ((error = ciss_get_request(sc, &cr))) 3703 goto out; 3704 3705 /* get a buffer for the result */ 3706 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3707 debug(0, "can't get notify event request buffer"); 3708 error = ENOMEM; 3709 goto out; 3710 } 3711 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3712 3713 /* build the CDB */ 3714 cc = cr->cr_cc; 3715 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3716 cc->header.address.physical.bus = 0; 3717 cc->header.address.physical.target = 0; 3718 cc->cdb.cdb_length = sizeof(*cnc); 3719 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3720 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3721 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3722 cc->cdb.timeout = 0; /* no timeout, we hope */ 3723 3724 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3725 bzero(cnc, sizeof(*cnc)); 3726 cnc->opcode = CISS_OPCODE_WRITE; 3727 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3728 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3729 3730 ciss_print_request(cr); 3731 3732 /* 3733 * Submit the request and wait for it to complete. 3734 */ 3735 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3736 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3737 goto out; 3738 } 3739 3740 /* 3741 * Check response. 3742 */ 3743 ciss_report_request(cr, &command_status, &scsi_status); 3744 switch(command_status) { 3745 case CISS_CMD_STATUS_SUCCESS: 3746 break; 3747 case CISS_CMD_STATUS_INVALID_COMMAND: 3748 /* 3749 * Some older adapters don't support the CISS version of this 3750 * command. Fall back to using the BMIC version. 3751 */ 3752 error = ciss_notify_abort_bmic(sc); 3753 if (error != 0) 3754 goto out; 3755 break; 3756 3757 case CISS_CMD_STATUS_TARGET_STATUS: 3758 /* 3759 * This can happen if the adapter thinks there wasn't an outstanding 3760 * Notify Event command but we did. We clean up here. 3761 */ 3762 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3763 if (sc->ciss_periodic_notify != NULL) 3764 ciss_release_request(sc->ciss_periodic_notify); 3765 error = 0; 3766 goto out; 3767 } 3768 /* FALLTHROUGH */ 3769 3770 default: 3771 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3772 ciss_name_command_status(command_status)); 3773 error = EIO; 3774 goto out; 3775 } 3776 3777 /* 3778 * Sleep waiting for the notifier command to complete. Note 3779 * that if it doesn't, we may end up in a bad situation, since 3780 * the adapter may deliver it later. Also note that the adapter 3781 * requires the Notify Event command to be cancelled in order to 3782 * maintain internal bookkeeping. 3783 */ 3784 while (sc->ciss_periodic_notify != NULL) { 3785 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3786 if (error == EWOULDBLOCK) { 3787 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3788 break; 3789 } 3790 } 3791 3792 out: 3793 /* release the cancel request */ 3794 if (cr != NULL) { 3795 if (cr->cr_data != NULL) 3796 free(cr->cr_data, CISS_MALLOC_CLASS); 3797 ciss_release_request(cr); 3798 } 3799 if (error == 0) 3800 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3801 return(error); 3802 } 3803 3804 /************************************************************************ 3805 * Abort the Notify Event chain using a BMIC command. 3806 */ 3807 static int 3808 ciss_notify_abort_bmic(struct ciss_softc *sc) 3809 { 3810 struct ciss_request *cr; 3811 int error, command_status; 3812 3813 debug_called(1); 3814 3815 cr = NULL; 3816 error = 0; 3817 3818 /* verify that there's an outstanding command */ 3819 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3820 goto out; 3821 3822 /* 3823 * Build a BMIC command to cancel the Notify on Event command. 3824 * 3825 * Note that we are sending a CISS opcode here. Odd. 3826 */ 3827 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3828 NULL, 0)) != 0) 3829 goto out; 3830 3831 /* 3832 * Submit the request and wait for it to complete. 3833 */ 3834 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3835 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3836 goto out; 3837 } 3838 3839 /* 3840 * Check response. 3841 */ 3842 ciss_report_request(cr, &command_status, NULL); 3843 switch(command_status) { 3844 case CISS_CMD_STATUS_SUCCESS: 3845 break; 3846 default: 3847 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3848 ciss_name_command_status(command_status)); 3849 error = EIO; 3850 goto out; 3851 } 3852 3853 out: 3854 if (cr != NULL) 3855 ciss_release_request(cr); 3856 return(error); 3857 } 3858 3859 /************************************************************************ 3860 * Handle rescanning all the logical volumes when a notify event 3861 * causes the drives to come online or offline. 3862 */ 3863 static void 3864 ciss_notify_rescan_logical(struct ciss_softc *sc) 3865 { 3866 struct ciss_lun_report *cll; 3867 struct ciss_ldrive *ld; 3868 int i, j, ndrives; 3869 3870 /* 3871 * We must rescan all logical volumes to get the right logical 3872 * drive address. 3873 */ 3874 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3875 CISS_MAX_LOGICAL); 3876 if (cll == NULL) 3877 return; 3878 3879 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3880 3881 /* 3882 * Delete any of the drives which were destroyed by the 3883 * firmware. 3884 */ 3885 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3886 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3887 ld = &sc->ciss_logical[i][j]; 3888 3889 if (ld->cl_update == 0) 3890 continue; 3891 3892 if (ld->cl_status != CISS_LD_ONLINE) { 3893 ciss_cam_rescan_target(sc, i, j); 3894 ld->cl_update = 0; 3895 if (ld->cl_ldrive) 3896 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3897 if (ld->cl_lstatus) 3898 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3899 3900 ld->cl_ldrive = NULL; 3901 ld->cl_lstatus = NULL; 3902 } 3903 } 3904 } 3905 3906 /* 3907 * Scan for new drives. 3908 */ 3909 for (i = 0; i < ndrives; i++) { 3910 int bus, target; 3911 3912 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3913 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3914 ld = &sc->ciss_logical[bus][target]; 3915 3916 if (ld->cl_update == 0) 3917 continue; 3918 3919 ld->cl_update = 0; 3920 ld->cl_address = cll->lun[i]; 3921 ld->cl_controller = &sc->ciss_controllers[bus]; 3922 if (ciss_identify_logical(sc, ld) == 0) { 3923 ciss_cam_rescan_target(sc, bus, target); 3924 } 3925 } 3926 free(cll, CISS_MALLOC_CLASS); 3927 } 3928 3929 /************************************************************************ 3930 * Handle a notify event relating to the status of a logical drive. 3931 * 3932 * XXX need to be able to defer some of these to properly handle 3933 * calling the "ID Physical drive" command, unless the 'extended' 3934 * drive IDs are always in BIG_MAP format. 3935 */ 3936 static void 3937 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3938 { 3939 struct ciss_ldrive *ld; 3940 int ostatus, bus, target; 3941 3942 debug_called(2); 3943 3944 bus = cn->device.physical.bus; 3945 target = cn->data.logical_status.logical_drive; 3946 ld = &sc->ciss_logical[bus][target]; 3947 3948 switch (cn->subclass) { 3949 case CISS_NOTIFY_LOGICAL_STATUS: 3950 switch (cn->detail) { 3951 case 0: 3952 ciss_name_device(sc, bus, target); 3953 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3954 cn->data.logical_status.logical_drive, ld->cl_name, 3955 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3956 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3957 cn->data.logical_status.spare_state, 3958 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3959 3960 /* 3961 * Update our idea of the drive's status. 3962 */ 3963 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3964 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3965 if (ld->cl_lstatus != NULL) 3966 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3967 3968 /* 3969 * Have CAM rescan the drive if its status has changed. 3970 */ 3971 if (ostatus != ld->cl_status) { 3972 ld->cl_update = 1; 3973 ciss_notify_rescan_logical(sc); 3974 } 3975 3976 break; 3977 3978 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3979 ciss_name_device(sc, bus, target); 3980 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3981 cn->data.logical_status.logical_drive, ld->cl_name); 3982 ciss_accept_media(sc, ld); 3983 3984 ld->cl_update = 1; 3985 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3986 ciss_notify_rescan_logical(sc); 3987 break; 3988 3989 case 2: 3990 case 3: 3991 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3992 cn->data.rebuild_aborted.logical_drive, 3993 ld->cl_name, 3994 (cn->detail == 2) ? "read" : "write"); 3995 break; 3996 } 3997 break; 3998 3999 case CISS_NOTIFY_LOGICAL_ERROR: 4000 if (cn->detail == 0) { 4001 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4002 cn->data.io_error.logical_drive, 4003 ld->cl_name, 4004 cn->data.io_error.failure_bus, 4005 cn->data.io_error.failure_drive); 4006 /* XXX should we take the drive down at this point, or will we be told? */ 4007 } 4008 break; 4009 4010 case CISS_NOTIFY_LOGICAL_SURFACE: 4011 if (cn->detail == 0) 4012 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4013 cn->data.consistency_completed.logical_drive, 4014 ld->cl_name); 4015 break; 4016 } 4017 } 4018 4019 /************************************************************************ 4020 * Handle a notify event relating to the status of a physical drive. 4021 */ 4022 static void 4023 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4024 { 4025 } 4026 4027 /************************************************************************ 4028 * Handle a notify event relating to the status of a physical drive. 4029 */ 4030 static void 4031 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4032 { 4033 struct ciss_lun_report *cll = NULL; 4034 int bus, target; 4035 4036 switch (cn->subclass) { 4037 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4038 case CISS_NOTIFY_HOTPLUG_NONDISK: 4039 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4040 target = 4041 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4042 4043 if (cn->detail == 0) { 4044 /* 4045 * Mark the device offline so that it'll start producing selection 4046 * timeouts to the upper layer. 4047 */ 4048 if ((bus >= 0) && (target >= 0)) 4049 sc->ciss_physical[bus][target].cp_online = 0; 4050 } else { 4051 /* 4052 * Rescan the physical lun list for new items 4053 */ 4054 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4055 CISS_MAX_PHYSICAL); 4056 if (cll == NULL) { 4057 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4058 break; 4059 } 4060 ciss_filter_physical(sc, cll); 4061 } 4062 break; 4063 4064 default: 4065 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4066 return; 4067 } 4068 4069 if (cll != NULL) 4070 free(cll, CISS_MALLOC_CLASS); 4071 } 4072 4073 /************************************************************************ 4074 * Handle deferred processing of notify events. Notify events may need 4075 * sleep which is unsafe during an interrupt. 4076 */ 4077 static void 4078 ciss_notify_thread(void *arg) 4079 { 4080 struct ciss_softc *sc; 4081 struct ciss_request *cr; 4082 struct ciss_notify *cn; 4083 4084 sc = (struct ciss_softc *)arg; 4085 #if __FreeBSD_version >= 500000 4086 mtx_lock(&sc->ciss_mtx); 4087 #endif 4088 4089 for (;;) { 4090 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4091 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4092 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4093 } 4094 4095 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4096 break; 4097 4098 cr = ciss_dequeue_notify(sc); 4099 4100 if (cr == NULL) 4101 panic("cr null"); 4102 cn = (struct ciss_notify *)cr->cr_data; 4103 4104 switch (cn->class) { 4105 case CISS_NOTIFY_HOTPLUG: 4106 ciss_notify_hotplug(sc, cn); 4107 break; 4108 case CISS_NOTIFY_LOGICAL: 4109 ciss_notify_logical(sc, cn); 4110 break; 4111 case CISS_NOTIFY_PHYSICAL: 4112 ciss_notify_physical(sc, cn); 4113 break; 4114 } 4115 4116 ciss_release_request(cr); 4117 4118 } 4119 sc->ciss_notify_thread = NULL; 4120 wakeup(&sc->ciss_notify_thread); 4121 4122 #if __FreeBSD_version >= 500000 4123 mtx_unlock(&sc->ciss_mtx); 4124 #endif 4125 kproc_exit(0); 4126 } 4127 4128 /************************************************************************ 4129 * Start the notification kernel thread. 4130 */ 4131 static void 4132 ciss_spawn_notify_thread(struct ciss_softc *sc) 4133 { 4134 4135 #if __FreeBSD_version > 500005 4136 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4137 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4138 device_get_unit(sc->ciss_dev))) 4139 #else 4140 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4141 &sc->ciss_notify_thread, "ciss_notify%d", 4142 device_get_unit(sc->ciss_dev))) 4143 #endif 4144 panic("Could not create notify thread\n"); 4145 } 4146 4147 /************************************************************************ 4148 * Kill the notification kernel thread. 4149 */ 4150 static void 4151 ciss_kill_notify_thread(struct ciss_softc *sc) 4152 { 4153 4154 if (sc->ciss_notify_thread == NULL) 4155 return; 4156 4157 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4158 wakeup(&sc->ciss_notify); 4159 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4160 } 4161 4162 /************************************************************************ 4163 * Print a request. 4164 */ 4165 static void 4166 ciss_print_request(struct ciss_request *cr) 4167 { 4168 struct ciss_softc *sc; 4169 struct ciss_command *cc; 4170 int i; 4171 4172 sc = cr->cr_sc; 4173 cc = cr->cr_cc; 4174 4175 ciss_printf(sc, "REQUEST @ %p\n", cr); 4176 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4177 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4178 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4179 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4180 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4181 switch(cc->header.address.mode.mode) { 4182 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4183 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4184 ciss_printf(sc, " physical bus %d target %d\n", 4185 cc->header.address.physical.bus, cc->header.address.physical.target); 4186 break; 4187 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4188 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4189 break; 4190 } 4191 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4192 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4193 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4194 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4195 cc->cdb.cdb_length, 4196 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4197 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4198 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4199 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4200 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4201 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4202 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4203 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4204 4205 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4206 /* XXX print error info */ 4207 } else { 4208 /* since we don't use chained s/g, don't support it here */ 4209 for (i = 0; i < cc->header.sg_in_list; i++) { 4210 if ((i % 4) == 0) 4211 ciss_printf(sc, " "); 4212 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4213 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4214 printf("\n"); 4215 } 4216 } 4217 } 4218 4219 /************************************************************************ 4220 * Print information about the status of a logical drive. 4221 */ 4222 static void 4223 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4224 { 4225 int bus, target, i; 4226 4227 if (ld->cl_lstatus == NULL) { 4228 printf("does not exist\n"); 4229 return; 4230 } 4231 4232 /* print drive status */ 4233 switch(ld->cl_lstatus->status) { 4234 case CISS_LSTATUS_OK: 4235 printf("online\n"); 4236 break; 4237 case CISS_LSTATUS_INTERIM_RECOVERY: 4238 printf("in interim recovery mode\n"); 4239 break; 4240 case CISS_LSTATUS_READY_RECOVERY: 4241 printf("ready to begin recovery\n"); 4242 break; 4243 case CISS_LSTATUS_RECOVERING: 4244 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4245 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4246 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4247 bus, target, ld->cl_lstatus->blocks_to_recover); 4248 break; 4249 case CISS_LSTATUS_EXPANDING: 4250 printf("being expanded, %u blocks remaining\n", 4251 ld->cl_lstatus->blocks_to_recover); 4252 break; 4253 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4254 printf("queued for expansion\n"); 4255 break; 4256 case CISS_LSTATUS_FAILED: 4257 printf("queued for expansion\n"); 4258 break; 4259 case CISS_LSTATUS_WRONG_PDRIVE: 4260 printf("wrong physical drive inserted\n"); 4261 break; 4262 case CISS_LSTATUS_MISSING_PDRIVE: 4263 printf("missing a needed physical drive\n"); 4264 break; 4265 case CISS_LSTATUS_BECOMING_READY: 4266 printf("becoming ready\n"); 4267 break; 4268 } 4269 4270 /* print failed physical drives */ 4271 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4272 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4273 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4274 if (bus == -1) 4275 continue; 4276 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4277 ld->cl_lstatus->drive_failure_map[i]); 4278 } 4279 } 4280 4281 #ifdef CISS_DEBUG 4282 /************************************************************************ 4283 * Print information about the controller/driver. 4284 */ 4285 static void 4286 ciss_print_adapter(struct ciss_softc *sc) 4287 { 4288 int i, j; 4289 4290 ciss_printf(sc, "ADAPTER:\n"); 4291 for (i = 0; i < CISSQ_COUNT; i++) { 4292 ciss_printf(sc, "%s %d/%d\n", 4293 i == 0 ? "free" : 4294 i == 1 ? "busy" : "complete", 4295 sc->ciss_qstat[i].q_length, 4296 sc->ciss_qstat[i].q_max); 4297 } 4298 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4299 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4300 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4301 4302 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4303 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4304 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4305 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4306 } 4307 } 4308 4309 /* XXX Should physical drives be printed out here? */ 4310 4311 for (i = 1; i < sc->ciss_max_requests; i++) 4312 ciss_print_request(sc->ciss_request + i); 4313 } 4314 4315 /* DDB hook */ 4316 static void 4317 ciss_print0(void) 4318 { 4319 struct ciss_softc *sc; 4320 4321 sc = devclass_get_softc(devclass_find("ciss"), 0); 4322 if (sc == NULL) { 4323 printf("no ciss controllers\n"); 4324 } else { 4325 ciss_print_adapter(sc); 4326 } 4327 } 4328 #endif 4329 4330 /************************************************************************ 4331 * Return a name for a logical drive status value. 4332 */ 4333 static const char * 4334 ciss_name_ldrive_status(int status) 4335 { 4336 switch (status) { 4337 case CISS_LSTATUS_OK: 4338 return("OK"); 4339 case CISS_LSTATUS_FAILED: 4340 return("failed"); 4341 case CISS_LSTATUS_NOT_CONFIGURED: 4342 return("not configured"); 4343 case CISS_LSTATUS_INTERIM_RECOVERY: 4344 return("interim recovery"); 4345 case CISS_LSTATUS_READY_RECOVERY: 4346 return("ready for recovery"); 4347 case CISS_LSTATUS_RECOVERING: 4348 return("recovering"); 4349 case CISS_LSTATUS_WRONG_PDRIVE: 4350 return("wrong physical drive inserted"); 4351 case CISS_LSTATUS_MISSING_PDRIVE: 4352 return("missing physical drive"); 4353 case CISS_LSTATUS_EXPANDING: 4354 return("expanding"); 4355 case CISS_LSTATUS_BECOMING_READY: 4356 return("becoming ready"); 4357 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4358 return("queued for expansion"); 4359 } 4360 return("unknown status"); 4361 } 4362 4363 /************************************************************************ 4364 * Return an online/offline/nonexistent value for a logical drive 4365 * status value. 4366 */ 4367 static int 4368 ciss_decode_ldrive_status(int status) 4369 { 4370 switch(status) { 4371 case CISS_LSTATUS_NOT_CONFIGURED: 4372 return(CISS_LD_NONEXISTENT); 4373 4374 case CISS_LSTATUS_OK: 4375 case CISS_LSTATUS_INTERIM_RECOVERY: 4376 case CISS_LSTATUS_READY_RECOVERY: 4377 case CISS_LSTATUS_RECOVERING: 4378 case CISS_LSTATUS_EXPANDING: 4379 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4380 return(CISS_LD_ONLINE); 4381 4382 case CISS_LSTATUS_FAILED: 4383 case CISS_LSTATUS_WRONG_PDRIVE: 4384 case CISS_LSTATUS_MISSING_PDRIVE: 4385 case CISS_LSTATUS_BECOMING_READY: 4386 default: 4387 return(CISS_LD_OFFLINE); 4388 } 4389 } 4390 4391 4392 /************************************************************************ 4393 * Return a name for a logical drive's organisation. 4394 */ 4395 static const char * 4396 ciss_name_ldrive_org(int org) 4397 { 4398 switch(org) { 4399 case CISS_LDRIVE_RAID0: 4400 return("RAID 0"); 4401 case CISS_LDRIVE_RAID1: 4402 return("RAID 1(1+0)"); 4403 case CISS_LDRIVE_RAID4: 4404 return("RAID 4"); 4405 case CISS_LDRIVE_RAID5: 4406 return("RAID 5"); 4407 case CISS_LDRIVE_RAID51: 4408 return("RAID 5+1"); 4409 case CISS_LDRIVE_RAIDADG: 4410 return("RAID ADG"); 4411 } 4412 return("unkown"); 4413 } 4414 4415 /************************************************************************ 4416 * Return a name for a command status value. 4417 */ 4418 static const char * 4419 ciss_name_command_status(int status) 4420 { 4421 switch(status) { 4422 case CISS_CMD_STATUS_SUCCESS: 4423 return("success"); 4424 case CISS_CMD_STATUS_TARGET_STATUS: 4425 return("target status"); 4426 case CISS_CMD_STATUS_DATA_UNDERRUN: 4427 return("data underrun"); 4428 case CISS_CMD_STATUS_DATA_OVERRUN: 4429 return("data overrun"); 4430 case CISS_CMD_STATUS_INVALID_COMMAND: 4431 return("invalid command"); 4432 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4433 return("protocol error"); 4434 case CISS_CMD_STATUS_HARDWARE_ERROR: 4435 return("hardware error"); 4436 case CISS_CMD_STATUS_CONNECTION_LOST: 4437 return("connection lost"); 4438 case CISS_CMD_STATUS_ABORTED: 4439 return("aborted"); 4440 case CISS_CMD_STATUS_ABORT_FAILED: 4441 return("abort failed"); 4442 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4443 return("unsolicited abort"); 4444 case CISS_CMD_STATUS_TIMEOUT: 4445 return("timeout"); 4446 case CISS_CMD_STATUS_UNABORTABLE: 4447 return("unabortable"); 4448 } 4449 return("unknown status"); 4450 } 4451 4452 /************************************************************************ 4453 * Handle an open on the control device. 4454 */ 4455 static int 4456 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4457 { 4458 struct ciss_softc *sc; 4459 4460 debug_called(1); 4461 4462 sc = (struct ciss_softc *)dev->si_drv1; 4463 4464 /* we might want to veto if someone already has us open */ 4465 4466 mtx_lock(&sc->ciss_mtx); 4467 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4468 mtx_unlock(&sc->ciss_mtx); 4469 return(0); 4470 } 4471 4472 /************************************************************************ 4473 * Handle the last close on the control device. 4474 */ 4475 static int 4476 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4477 { 4478 struct ciss_softc *sc; 4479 4480 debug_called(1); 4481 4482 sc = (struct ciss_softc *)dev->si_drv1; 4483 4484 mtx_lock(&sc->ciss_mtx); 4485 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4486 mtx_unlock(&sc->ciss_mtx); 4487 return (0); 4488 } 4489 4490 /******************************************************************************** 4491 * Handle adapter-specific control operations. 4492 * 4493 * Note that the API here is compatible with the Linux driver, in order to 4494 * simplify the porting of Compaq's userland tools. 4495 */ 4496 static int 4497 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4498 { 4499 struct ciss_softc *sc; 4500 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4501 #ifdef __amd64__ 4502 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4503 IOCTL_Command_struct ioc_swab; 4504 #endif 4505 int error; 4506 4507 debug_called(1); 4508 4509 sc = (struct ciss_softc *)dev->si_drv1; 4510 error = 0; 4511 mtx_lock(&sc->ciss_mtx); 4512 4513 switch(cmd) { 4514 case CCISS_GETQSTATS: 4515 { 4516 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4517 4518 switch (cr->cs_item) { 4519 case CISSQ_FREE: 4520 case CISSQ_NOTIFY: 4521 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4522 sizeof(struct ciss_qstat)); 4523 break; 4524 default: 4525 error = ENOIOCTL; 4526 break; 4527 } 4528 4529 break; 4530 } 4531 4532 case CCISS_GETPCIINFO: 4533 { 4534 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4535 4536 pis->bus = pci_get_bus(sc->ciss_dev); 4537 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4538 pis->board_id = pci_get_devid(sc->ciss_dev); 4539 4540 break; 4541 } 4542 4543 case CCISS_GETINTINFO: 4544 { 4545 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4546 4547 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4548 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4549 4550 break; 4551 } 4552 4553 case CCISS_SETINTINFO: 4554 { 4555 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4556 4557 if ((cis->delay == 0) && (cis->count == 0)) { 4558 error = EINVAL; 4559 break; 4560 } 4561 4562 /* 4563 * XXX apparently this is only safe if the controller is idle, 4564 * we should suspend it before doing this. 4565 */ 4566 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4567 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4568 4569 if (ciss_update_config(sc)) 4570 error = EIO; 4571 4572 /* XXX resume the controller here */ 4573 break; 4574 } 4575 4576 case CCISS_GETNODENAME: 4577 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4578 sizeof(NodeName_type)); 4579 break; 4580 4581 case CCISS_SETNODENAME: 4582 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4583 sizeof(NodeName_type)); 4584 if (ciss_update_config(sc)) 4585 error = EIO; 4586 break; 4587 4588 case CCISS_GETHEARTBEAT: 4589 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4590 break; 4591 4592 case CCISS_GETBUSTYPES: 4593 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4594 break; 4595 4596 case CCISS_GETFIRMVER: 4597 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4598 sizeof(FirmwareVer_type)); 4599 break; 4600 4601 case CCISS_GETDRIVERVER: 4602 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4603 break; 4604 4605 case CCISS_REVALIDVOLS: 4606 /* 4607 * This is a bit ugly; to do it "right" we really need 4608 * to find any disks that have changed, kick CAM off them, 4609 * then rescan only these disks. It'd be nice if they 4610 * a) told us which disk(s) they were going to play with, 4611 * and b) which ones had arrived. 8( 4612 */ 4613 break; 4614 4615 #ifdef __amd64__ 4616 case CCISS_PASSTHRU32: 4617 ioc_swab.LUN_info = ioc32->LUN_info; 4618 ioc_swab.Request = ioc32->Request; 4619 ioc_swab.error_info = ioc32->error_info; 4620 ioc_swab.buf_size = ioc32->buf_size; 4621 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4622 ioc = &ioc_swab; 4623 /* FALLTHROUGH */ 4624 #endif 4625 4626 case CCISS_PASSTHRU: 4627 error = ciss_user_command(sc, ioc); 4628 break; 4629 4630 default: 4631 debug(0, "unknown ioctl 0x%lx", cmd); 4632 4633 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4634 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4635 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4636 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4637 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4638 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4639 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4640 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4641 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4642 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4643 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4644 4645 error = ENOIOCTL; 4646 break; 4647 } 4648 4649 mtx_unlock(&sc->ciss_mtx); 4650 return(error); 4651 } 4652