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