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_UNKNWON 0 283 #define CISS_BOARD_SA5 1 284 #define CISS_BOARD_SA5B 2 285 #define CISS_BOARD_NOMSI (1<<4) 286 287 static struct 288 { 289 u_int16_t subvendor; 290 u_int16_t subdevice; 291 int flags; 292 char *desc; 293 } ciss_vendor_data[] = { 294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 295 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 296 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 297 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 298 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 299 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 300 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 301 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 302 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 303 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 305 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 311 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 312 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 317 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 318 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 320 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 326 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 327 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 328 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 329 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 330 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 331 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 332 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 333 { 0, 0, 0, NULL } 334 }; 335 336 /************************************************************************ 337 * Find a match for the device in our list of known adapters. 338 */ 339 static int 340 ciss_lookup(device_t dev) 341 { 342 int i; 343 344 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 345 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 346 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 347 return(i); 348 } 349 return(-1); 350 } 351 352 /************************************************************************ 353 * Match a known CISS adapter. 354 */ 355 static int 356 ciss_probe(device_t dev) 357 { 358 int i; 359 360 i = ciss_lookup(dev); 361 if (i != -1) { 362 device_set_desc(dev, ciss_vendor_data[i].desc); 363 return(BUS_PROBE_DEFAULT); 364 } 365 return(ENOENT); 366 } 367 368 /************************************************************************ 369 * Attach the driver to this adapter. 370 */ 371 static int 372 ciss_attach(device_t dev) 373 { 374 struct ciss_softc *sc; 375 int error; 376 377 debug_called(1); 378 379 #ifdef CISS_DEBUG 380 /* print structure/union sizes */ 381 debug_struct(ciss_command); 382 debug_struct(ciss_header); 383 debug_union(ciss_device_address); 384 debug_struct(ciss_cdb); 385 debug_struct(ciss_report_cdb); 386 debug_struct(ciss_notify_cdb); 387 debug_struct(ciss_notify); 388 debug_struct(ciss_message_cdb); 389 debug_struct(ciss_error_info_pointer); 390 debug_struct(ciss_error_info); 391 debug_struct(ciss_sg_entry); 392 debug_struct(ciss_config_table); 393 debug_struct(ciss_bmic_cdb); 394 debug_struct(ciss_bmic_id_ldrive); 395 debug_struct(ciss_bmic_id_lstatus); 396 debug_struct(ciss_bmic_id_table); 397 debug_struct(ciss_bmic_id_pdrive); 398 debug_struct(ciss_bmic_blink_pdrive); 399 debug_struct(ciss_bmic_flush_cache); 400 debug_const(CISS_MAX_REQUESTS); 401 debug_const(CISS_MAX_LOGICAL); 402 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 403 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 404 debug_const(CISS_COMMAND_ALLOC_SIZE); 405 debug_const(CISS_COMMAND_SG_LENGTH); 406 407 debug_type(cciss_pci_info_struct); 408 debug_type(cciss_coalint_struct); 409 debug_type(cciss_coalint_struct); 410 debug_type(NodeName_type); 411 debug_type(NodeName_type); 412 debug_type(Heartbeat_type); 413 debug_type(BusTypes_type); 414 debug_type(FirmwareVer_type); 415 debug_type(DriverVer_type); 416 debug_type(IOCTL_Command_struct); 417 #endif 418 419 sc = device_get_softc(dev); 420 sc->ciss_dev = dev; 421 422 /* 423 * Do PCI-specific init. 424 */ 425 if ((error = ciss_init_pci(sc)) != 0) 426 goto out; 427 428 /* 429 * Initialise driver queues. 430 */ 431 ciss_initq_free(sc); 432 ciss_initq_notify(sc); 433 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 434 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 435 436 /* 437 * Initalize device sysctls. 438 */ 439 ciss_init_sysctl(sc); 440 441 /* 442 * Initialise command/request pool. 443 */ 444 if ((error = ciss_init_requests(sc)) != 0) 445 goto out; 446 447 /* 448 * Get adapter information. 449 */ 450 if ((error = ciss_identify_adapter(sc)) != 0) 451 goto out; 452 453 /* 454 * Find all the physical devices. 455 */ 456 if ((error = ciss_init_physical(sc)) != 0) 457 goto out; 458 459 /* 460 * Build our private table of logical devices. 461 */ 462 if ((error = ciss_init_logical(sc)) != 0) 463 goto out; 464 465 /* 466 * Enable interrupts so that the CAM scan can complete. 467 */ 468 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 469 470 /* 471 * Initialise the CAM interface. 472 */ 473 if ((error = ciss_cam_init(sc)) != 0) 474 goto out; 475 476 /* 477 * Start the heartbeat routine and event chain. 478 */ 479 ciss_periodic(sc); 480 481 /* 482 * Create the control device. 483 */ 484 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 485 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 486 "ciss%d", device_get_unit(sc->ciss_dev)); 487 sc->ciss_dev_t->si_drv1 = sc; 488 489 /* 490 * The adapter is running; synchronous commands can now sleep 491 * waiting for an interrupt to signal completion. 492 */ 493 sc->ciss_flags |= CISS_FLAG_RUNNING; 494 495 ciss_spawn_notify_thread(sc); 496 497 error = 0; 498 out: 499 if (error != 0) 500 ciss_free(sc); 501 return(error); 502 } 503 504 /************************************************************************ 505 * Detach the driver from this adapter. 506 */ 507 static int 508 ciss_detach(device_t dev) 509 { 510 struct ciss_softc *sc = device_get_softc(dev); 511 512 debug_called(1); 513 514 mtx_lock(&sc->ciss_mtx); 515 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 516 mtx_unlock(&sc->ciss_mtx); 517 return (EBUSY); 518 } 519 520 /* flush adapter cache */ 521 ciss_flush_adapter(sc); 522 523 /* release all resources. The mutex is released and freed here too. */ 524 ciss_free(sc); 525 526 return(0); 527 } 528 529 /************************************************************************ 530 * Prepare adapter for system shutdown. 531 */ 532 static int 533 ciss_shutdown(device_t dev) 534 { 535 struct ciss_softc *sc = device_get_softc(dev); 536 537 debug_called(1); 538 539 mtx_lock(&sc->ciss_mtx); 540 /* flush adapter cache */ 541 ciss_flush_adapter(sc); 542 543 if (sc->ciss_soft_reset) 544 ciss_soft_reset(sc); 545 mtx_unlock(&sc->ciss_mtx); 546 547 return(0); 548 } 549 550 static void 551 ciss_init_sysctl(struct ciss_softc *sc) 552 { 553 554 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 555 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 556 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 557 } 558 559 /************************************************************************ 560 * Perform PCI-specific attachment actions. 561 */ 562 static int 563 ciss_init_pci(struct ciss_softc *sc) 564 { 565 uintptr_t cbase, csize, cofs; 566 uint32_t method, supported_methods; 567 int error, sqmask, i; 568 void *intr; 569 570 debug_called(1); 571 572 /* 573 * Work out adapter type. 574 */ 575 i = ciss_lookup(sc->ciss_dev); 576 if (i < 0) { 577 ciss_printf(sc, "unknown adapter type\n"); 578 return (ENXIO); 579 } 580 581 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 582 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 583 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 584 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 585 } else { 586 /* 587 * XXX Big hammer, masks/unmasks all possible interrupts. This should 588 * work on all hardware variants. Need to add code to handle the 589 * "controller crashed" interupt bit that this unmasks. 590 */ 591 sqmask = ~0; 592 } 593 594 /* 595 * Allocate register window first (we need this to find the config 596 * struct). 597 */ 598 error = ENXIO; 599 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 600 if ((sc->ciss_regs_resource = 601 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 602 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 603 ciss_printf(sc, "can't allocate register window\n"); 604 return(ENXIO); 605 } 606 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 607 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 608 609 /* 610 * Find the BAR holding the config structure. If it's not the one 611 * we already mapped for registers, map it too. 612 */ 613 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 614 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 615 if ((sc->ciss_cfg_resource = 616 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 617 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 618 ciss_printf(sc, "can't allocate config window\n"); 619 return(ENXIO); 620 } 621 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 622 csize = rman_get_end(sc->ciss_cfg_resource) - 623 rman_get_start(sc->ciss_cfg_resource) + 1; 624 } else { 625 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 626 csize = rman_get_end(sc->ciss_regs_resource) - 627 rman_get_start(sc->ciss_regs_resource) + 1; 628 } 629 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 630 631 /* 632 * Use the base/size/offset values we just calculated to 633 * sanity-check the config structure. If it's OK, point to it. 634 */ 635 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 636 ciss_printf(sc, "config table outside window\n"); 637 return(ENXIO); 638 } 639 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 640 debug(1, "config struct at %p", sc->ciss_cfg); 641 642 /* 643 * Calculate the number of request structures/commands we are 644 * going to provide for this adapter. 645 */ 646 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 647 648 /* 649 * Validate the config structure. If we supported other transport 650 * methods, we could select amongst them at this point in time. 651 */ 652 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 653 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 654 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 655 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 656 return(ENXIO); 657 } 658 659 /* 660 * Select the mode of operation, prefer Performant. 661 */ 662 if (!(sc->ciss_cfg->supported_methods & 663 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 664 ciss_printf(sc, "No supported transport layers: 0x%x\n", 665 sc->ciss_cfg->supported_methods); 666 } 667 668 switch (ciss_force_transport) { 669 case 1: 670 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 671 break; 672 case 2: 673 supported_methods = CISS_TRANSPORT_METHOD_PERF; 674 break; 675 default: 676 supported_methods = sc->ciss_cfg->supported_methods; 677 break; 678 } 679 680 setup: 681 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 682 method = CISS_TRANSPORT_METHOD_PERF; 683 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 684 sc->ciss_cfg->transport_offset); 685 if (ciss_init_perf(sc)) { 686 supported_methods &= ~method; 687 goto setup; 688 } 689 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 690 method = CISS_TRANSPORT_METHOD_SIMPLE; 691 } else { 692 ciss_printf(sc, "No supported transport methods: 0x%x\n", 693 sc->ciss_cfg->supported_methods); 694 return(ENXIO); 695 } 696 697 /* 698 * Tell it we're using the low 4GB of RAM. Set the default interrupt 699 * coalescing options. 700 */ 701 sc->ciss_cfg->requested_method = method; 702 sc->ciss_cfg->command_physlimit = 0; 703 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 704 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 705 706 #ifdef __i386__ 707 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 708 #endif 709 710 if (ciss_update_config(sc)) { 711 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 712 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 713 return(ENXIO); 714 } 715 if ((sc->ciss_cfg->active_method & method) == 0) { 716 supported_methods &= ~method; 717 if (supported_methods == 0) { 718 ciss_printf(sc, "adapter refuses to go into available transports " 719 "mode (0x%x, 0x%x)\n", supported_methods, 720 sc->ciss_cfg->active_method); 721 return(ENXIO); 722 } else 723 goto setup; 724 } 725 726 /* 727 * Wait for the adapter to come ready. 728 */ 729 if ((error = ciss_wait_adapter(sc)) != 0) 730 return(error); 731 732 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 733 * interrupts have a rid of 0, this will be overridden if MSIX is used. 734 */ 735 sc->ciss_irq_rid[0] = 0; 736 if (method == CISS_TRANSPORT_METHOD_PERF) { 737 ciss_printf(sc, "PERFORMANT Transport\n"); 738 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 739 intr = ciss_perf_msi_intr; 740 } else { 741 intr = ciss_perf_intr; 742 } 743 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 744 * Unfortunately, there is no good way to know if this is a SAS 745 * controller. Hopefully enabling this bit universally will work OK. 746 * It seems to work fine for SA6i controllers. 747 */ 748 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 749 750 } else { 751 ciss_printf(sc, "SIMPLE Transport\n"); 752 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 753 if (ciss_force_interrupt == 2) 754 /* If this fails, we automatically revert to INTx */ 755 ciss_setup_msix(sc); 756 sc->ciss_perf = NULL; 757 intr = ciss_intr; 758 sc->ciss_interrupt_mask = sqmask; 759 } 760 761 /* 762 * Turn off interrupts before we go routing anything. 763 */ 764 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 765 766 /* 767 * Allocate and set up our interrupt. 768 */ 769 if ((sc->ciss_irq_resource = 770 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 771 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 772 ciss_printf(sc, "can't allocate interrupt\n"); 773 return(ENXIO); 774 } 775 776 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 777 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 778 &sc->ciss_intr)) { 779 ciss_printf(sc, "can't set up interrupt\n"); 780 return(ENXIO); 781 } 782 783 /* 784 * Allocate the parent bus DMA tag appropriate for our PCI 785 * interface. 786 * 787 * Note that "simple" adapters can only address within a 32-bit 788 * span. 789 */ 790 if (bus_dma_tag_create(NULL, /* parent */ 791 1, 0, /* alignment, boundary */ 792 BUS_SPACE_MAXADDR, /* lowaddr */ 793 BUS_SPACE_MAXADDR, /* highaddr */ 794 NULL, NULL, /* filter, filterarg */ 795 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 796 CISS_MAX_SG_ELEMENTS, /* nsegments */ 797 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 798 0, /* flags */ 799 NULL, NULL, /* lockfunc, lockarg */ 800 &sc->ciss_parent_dmat)) { 801 ciss_printf(sc, "can't allocate parent DMA tag\n"); 802 return(ENOMEM); 803 } 804 805 /* 806 * Create DMA tag for mapping buffers into adapter-addressable 807 * space. 808 */ 809 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 810 1, 0, /* alignment, boundary */ 811 BUS_SPACE_MAXADDR, /* lowaddr */ 812 BUS_SPACE_MAXADDR, /* highaddr */ 813 NULL, NULL, /* filter, filterarg */ 814 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 815 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 816 BUS_DMA_ALLOCNOW, /* flags */ 817 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 818 &sc->ciss_buffer_dmat)) { 819 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 820 return(ENOMEM); 821 } 822 return(0); 823 } 824 825 /************************************************************************ 826 * Setup MSI/MSIX operation (Performant only) 827 * Four interrupts are available, but we only use 1 right now. If MSI-X 828 * isn't avaialble, try using MSI instead. 829 */ 830 static int 831 ciss_setup_msix(struct ciss_softc *sc) 832 { 833 int val, i; 834 835 /* Weed out devices that don't actually support MSI */ 836 i = ciss_lookup(sc->ciss_dev); 837 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 838 return (EINVAL); 839 840 /* 841 * Only need to use the minimum number of MSI vectors, as the driver 842 * doesn't support directed MSIX interrupts. 843 */ 844 val = pci_msix_count(sc->ciss_dev); 845 if (val < CISS_MSI_COUNT) { 846 val = pci_msi_count(sc->ciss_dev); 847 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 848 if (val < CISS_MSI_COUNT) 849 return (EINVAL); 850 } 851 val = MIN(val, CISS_MSI_COUNT); 852 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 853 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 854 return (EINVAL); 855 } 856 857 sc->ciss_msi = val; 858 if (bootverbose) 859 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 860 (val != 1) ? "s" : ""); 861 862 for (i = 0; i < val; i++) 863 sc->ciss_irq_rid[i] = i + 1; 864 865 return (0); 866 867 } 868 869 /************************************************************************ 870 * Setup the Performant structures. 871 */ 872 static int 873 ciss_init_perf(struct ciss_softc *sc) 874 { 875 struct ciss_perf_config *pc = sc->ciss_perf; 876 int reply_size; 877 878 /* 879 * Create the DMA tag for the reply queue. 880 */ 881 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 882 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 883 1, 0, /* alignment, boundary */ 884 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 885 BUS_SPACE_MAXADDR, /* highaddr */ 886 NULL, NULL, /* filter, filterarg */ 887 reply_size, 1, /* maxsize, nsegments */ 888 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 889 0, /* flags */ 890 NULL, NULL, /* lockfunc, lockarg */ 891 &sc->ciss_reply_dmat)) { 892 ciss_printf(sc, "can't allocate reply DMA tag\n"); 893 return(ENOMEM); 894 } 895 /* 896 * Allocate memory and make it available for DMA. 897 */ 898 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 899 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 900 ciss_printf(sc, "can't allocate reply memory\n"); 901 return(ENOMEM); 902 } 903 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 904 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 905 bzero(sc->ciss_reply, reply_size); 906 907 sc->ciss_cycle = 0x1; 908 sc->ciss_rqidx = 0; 909 910 /* 911 * Preload the fetch table with common command sizes. This allows the 912 * hardware to not waste bus cycles for typical i/o commands, but also not 913 * tax the driver to be too exact in choosing sizes. The table is optimized 914 * for page-aligned i/o's, but since most i/o comes from the various pagers, 915 * it's a reasonable assumption to make. 916 */ 917 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 918 pc->fetch_count[CISS_SG_FETCH_1] = 919 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 920 pc->fetch_count[CISS_SG_FETCH_2] = 921 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 922 pc->fetch_count[CISS_SG_FETCH_4] = 923 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 924 pc->fetch_count[CISS_SG_FETCH_8] = 925 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 926 pc->fetch_count[CISS_SG_FETCH_16] = 927 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 928 pc->fetch_count[CISS_SG_FETCH_32] = 929 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 930 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 931 932 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 933 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 934 pc->rq_bank_hi = 0; 935 pc->rq_bank_lo = 0; 936 pc->rq[0].rq_addr_hi = 0x0; 937 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 938 939 return(0); 940 } 941 942 /************************************************************************ 943 * Wait for the adapter to come ready. 944 */ 945 static int 946 ciss_wait_adapter(struct ciss_softc *sc) 947 { 948 int i; 949 950 debug_called(1); 951 952 /* 953 * Wait for the adapter to come ready. 954 */ 955 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 956 ciss_printf(sc, "waiting for adapter to come ready...\n"); 957 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 958 DELAY(1000000); /* one second */ 959 if (i > 30) { 960 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 961 return(EIO); 962 } 963 } 964 } 965 return(0); 966 } 967 968 /************************************************************************ 969 * Flush the adapter cache. 970 */ 971 static int 972 ciss_flush_adapter(struct ciss_softc *sc) 973 { 974 struct ciss_request *cr; 975 struct ciss_bmic_flush_cache *cbfc; 976 int error, command_status; 977 978 debug_called(1); 979 980 cr = NULL; 981 cbfc = NULL; 982 983 /* 984 * Build a BMIC request to flush the cache. We don't disable 985 * it, as we may be going to do more I/O (eg. we are emulating 986 * the Synchronise Cache command). 987 */ 988 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 989 error = ENOMEM; 990 goto out; 991 } 992 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 993 (void **)&cbfc, sizeof(*cbfc))) != 0) 994 goto out; 995 996 /* 997 * Submit the request and wait for it to complete. 998 */ 999 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1000 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1001 goto out; 1002 } 1003 1004 /* 1005 * Check response. 1006 */ 1007 ciss_report_request(cr, &command_status, NULL); 1008 switch(command_status) { 1009 case CISS_CMD_STATUS_SUCCESS: 1010 break; 1011 default: 1012 ciss_printf(sc, "error flushing cache (%s)\n", 1013 ciss_name_command_status(command_status)); 1014 error = EIO; 1015 goto out; 1016 } 1017 1018 out: 1019 if (cbfc != NULL) 1020 free(cbfc, CISS_MALLOC_CLASS); 1021 if (cr != NULL) 1022 ciss_release_request(cr); 1023 return(error); 1024 } 1025 1026 static void 1027 ciss_soft_reset(struct ciss_softc *sc) 1028 { 1029 struct ciss_request *cr = NULL; 1030 struct ciss_command *cc; 1031 int i, error = 0; 1032 1033 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1034 /* only reset proxy controllers */ 1035 if (sc->ciss_controllers[i].physical.bus == 0) 1036 continue; 1037 1038 if ((error = ciss_get_request(sc, &cr)) != 0) 1039 break; 1040 1041 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1042 NULL, 0)) != 0) 1043 break; 1044 1045 cc = cr->cr_cc; 1046 cc->header.address = sc->ciss_controllers[i]; 1047 1048 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1049 break; 1050 1051 ciss_release_request(cr); 1052 } 1053 1054 if (error) 1055 ciss_printf(sc, "error resetting controller (%d)\n", error); 1056 1057 if (cr != NULL) 1058 ciss_release_request(cr); 1059 } 1060 1061 /************************************************************************ 1062 * Allocate memory for the adapter command structures, initialise 1063 * the request structures. 1064 * 1065 * Note that the entire set of commands are allocated in a single 1066 * contiguous slab. 1067 */ 1068 static int 1069 ciss_init_requests(struct ciss_softc *sc) 1070 { 1071 struct ciss_request *cr; 1072 int i; 1073 1074 debug_called(1); 1075 1076 if (bootverbose) 1077 ciss_printf(sc, "using %d of %d available commands\n", 1078 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1079 1080 /* 1081 * Create the DMA tag for commands. 1082 */ 1083 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1084 32, 0, /* alignment, boundary */ 1085 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1086 BUS_SPACE_MAXADDR, /* highaddr */ 1087 NULL, NULL, /* filter, filterarg */ 1088 CISS_COMMAND_ALLOC_SIZE * 1089 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1090 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1091 0, /* flags */ 1092 NULL, NULL, /* lockfunc, lockarg */ 1093 &sc->ciss_command_dmat)) { 1094 ciss_printf(sc, "can't allocate command DMA tag\n"); 1095 return(ENOMEM); 1096 } 1097 /* 1098 * Allocate memory and make it available for DMA. 1099 */ 1100 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1101 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1102 ciss_printf(sc, "can't allocate command memory\n"); 1103 return(ENOMEM); 1104 } 1105 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1106 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1107 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1108 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1109 1110 /* 1111 * Set up the request and command structures, push requests onto 1112 * the free queue. 1113 */ 1114 for (i = 1; i < sc->ciss_max_requests; i++) { 1115 cr = &sc->ciss_request[i]; 1116 cr->cr_sc = sc; 1117 cr->cr_tag = i; 1118 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1119 CISS_COMMAND_ALLOC_SIZE * i); 1120 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1121 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1122 ciss_enqueue_free(cr); 1123 } 1124 return(0); 1125 } 1126 1127 static void 1128 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1129 { 1130 uint32_t *addr; 1131 1132 addr = arg; 1133 *addr = segs[0].ds_addr; 1134 } 1135 1136 /************************************************************************ 1137 * Identify the adapter, print some information about it. 1138 */ 1139 static int 1140 ciss_identify_adapter(struct ciss_softc *sc) 1141 { 1142 struct ciss_request *cr; 1143 int error, command_status; 1144 1145 debug_called(1); 1146 1147 cr = NULL; 1148 1149 /* 1150 * Get a request, allocate storage for the adapter data. 1151 */ 1152 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1153 (void **)&sc->ciss_id, 1154 sizeof(*sc->ciss_id))) != 0) 1155 goto out; 1156 1157 /* 1158 * Submit the request and wait for it to complete. 1159 */ 1160 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1161 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1162 goto out; 1163 } 1164 1165 /* 1166 * Check response. 1167 */ 1168 ciss_report_request(cr, &command_status, NULL); 1169 switch(command_status) { 1170 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1171 break; 1172 case CISS_CMD_STATUS_DATA_UNDERRUN: 1173 case CISS_CMD_STATUS_DATA_OVERRUN: 1174 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1175 default: 1176 ciss_printf(sc, "error reading adapter information (%s)\n", 1177 ciss_name_command_status(command_status)); 1178 error = EIO; 1179 goto out; 1180 } 1181 1182 /* sanity-check reply */ 1183 if (!sc->ciss_id->big_map_supported) { 1184 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1185 error = ENXIO; 1186 goto out; 1187 } 1188 1189 #if 0 1190 /* XXX later revisions may not need this */ 1191 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1192 #endif 1193 1194 /* XXX only really required for old 5300 adapters? */ 1195 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1196 1197 /* print information */ 1198 if (bootverbose) { 1199 #if 0 /* XXX proxy volumes??? */ 1200 ciss_printf(sc, " %d logical drive%s configured\n", 1201 sc->ciss_id->configured_logical_drives, 1202 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1203 #endif 1204 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1205 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1206 1207 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1208 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1209 ciss_printf(sc, " supported I/O methods 0x%b\n", 1210 sc->ciss_cfg->supported_methods, 1211 "\20\1READY\2simple\3performant\4MEMQ\n"); 1212 ciss_printf(sc, " active I/O method 0x%b\n", 1213 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1214 ciss_printf(sc, " 4G page base 0x%08x\n", 1215 sc->ciss_cfg->command_physlimit); 1216 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1217 sc->ciss_cfg->interrupt_coalesce_delay); 1218 ciss_printf(sc, " interrupt coalesce count %d\n", 1219 sc->ciss_cfg->interrupt_coalesce_count); 1220 ciss_printf(sc, " max outstanding commands %d\n", 1221 sc->ciss_cfg->max_outstanding_commands); 1222 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1223 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1224 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1225 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1226 } 1227 1228 out: 1229 if (error) { 1230 if (sc->ciss_id != NULL) { 1231 free(sc->ciss_id, CISS_MALLOC_CLASS); 1232 sc->ciss_id = NULL; 1233 } 1234 } 1235 if (cr != NULL) 1236 ciss_release_request(cr); 1237 return(error); 1238 } 1239 1240 /************************************************************************ 1241 * Helper routine for generating a list of logical and physical luns. 1242 */ 1243 static struct ciss_lun_report * 1244 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1245 { 1246 struct ciss_request *cr; 1247 struct ciss_command *cc; 1248 struct ciss_report_cdb *crc; 1249 struct ciss_lun_report *cll; 1250 int command_status; 1251 int report_size; 1252 int error = 0; 1253 1254 debug_called(1); 1255 1256 cr = NULL; 1257 cll = NULL; 1258 1259 /* 1260 * Get a request, allocate storage for the address list. 1261 */ 1262 if ((error = ciss_get_request(sc, &cr)) != 0) 1263 goto out; 1264 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1265 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1266 ciss_printf(sc, "can't allocate memory for lun report\n"); 1267 error = ENOMEM; 1268 goto out; 1269 } 1270 1271 /* 1272 * Build the Report Logical/Physical LUNs command. 1273 */ 1274 cc = cr->cr_cc; 1275 cr->cr_data = cll; 1276 cr->cr_length = report_size; 1277 cr->cr_flags = CISS_REQ_DATAIN; 1278 1279 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1280 cc->header.address.physical.bus = 0; 1281 cc->header.address.physical.target = 0; 1282 cc->cdb.cdb_length = sizeof(*crc); 1283 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1284 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1285 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1286 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1287 1288 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1289 bzero(crc, sizeof(*crc)); 1290 crc->opcode = opcode; 1291 crc->length = htonl(report_size); /* big-endian field */ 1292 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1293 1294 /* 1295 * Submit the request and wait for it to complete. (timeout 1296 * here should be much greater than above) 1297 */ 1298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1299 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1300 goto out; 1301 } 1302 1303 /* 1304 * Check response. Note that data over/underrun is OK. 1305 */ 1306 ciss_report_request(cr, &command_status, NULL); 1307 switch(command_status) { 1308 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1309 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1310 break; 1311 case CISS_CMD_STATUS_DATA_OVERRUN: 1312 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1313 CISS_MAX_LOGICAL); 1314 break; 1315 default: 1316 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1317 ciss_name_command_status(command_status)); 1318 error = EIO; 1319 goto out; 1320 } 1321 ciss_release_request(cr); 1322 cr = NULL; 1323 1324 out: 1325 if (cr != NULL) 1326 ciss_release_request(cr); 1327 if (error && cll != NULL) { 1328 free(cll, CISS_MALLOC_CLASS); 1329 cll = NULL; 1330 } 1331 return(cll); 1332 } 1333 1334 /************************************************************************ 1335 * Find logical drives on the adapter. 1336 */ 1337 static int 1338 ciss_init_logical(struct ciss_softc *sc) 1339 { 1340 struct ciss_lun_report *cll; 1341 int error = 0, i, j; 1342 int ndrives; 1343 1344 debug_called(1); 1345 1346 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1347 CISS_MAX_LOGICAL); 1348 if (cll == NULL) { 1349 error = ENXIO; 1350 goto out; 1351 } 1352 1353 /* sanity-check reply */ 1354 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1355 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1356 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1357 ndrives, CISS_MAX_LOGICAL); 1358 error = ENXIO; 1359 goto out; 1360 } 1361 1362 /* 1363 * Save logical drive information. 1364 */ 1365 if (bootverbose) { 1366 ciss_printf(sc, "%d logical drive%s\n", 1367 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1368 } 1369 1370 sc->ciss_logical = 1371 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1372 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1373 if (sc->ciss_logical == NULL) { 1374 error = ENXIO; 1375 goto out; 1376 } 1377 1378 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1379 sc->ciss_logical[i] = 1380 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1381 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1382 if (sc->ciss_logical[i] == NULL) { 1383 error = ENXIO; 1384 goto out; 1385 } 1386 1387 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1388 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1389 } 1390 1391 1392 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1393 if (i < ndrives) { 1394 struct ciss_ldrive *ld; 1395 int bus, target; 1396 1397 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1398 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1399 ld = &sc->ciss_logical[bus][target]; 1400 1401 ld->cl_address = cll->lun[i]; 1402 ld->cl_controller = &sc->ciss_controllers[bus]; 1403 if (ciss_identify_logical(sc, ld) != 0) 1404 continue; 1405 /* 1406 * If the drive has had media exchanged, we should bring it online. 1407 */ 1408 if (ld->cl_lstatus->media_exchanged) 1409 ciss_accept_media(sc, ld); 1410 1411 } 1412 } 1413 1414 out: 1415 if (cll != NULL) 1416 free(cll, CISS_MALLOC_CLASS); 1417 return(error); 1418 } 1419 1420 static int 1421 ciss_init_physical(struct ciss_softc *sc) 1422 { 1423 struct ciss_lun_report *cll; 1424 int error = 0, i; 1425 int nphys; 1426 int bus, target; 1427 1428 debug_called(1); 1429 1430 bus = 0; 1431 target = 0; 1432 1433 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1434 CISS_MAX_PHYSICAL); 1435 if (cll == NULL) { 1436 error = ENXIO; 1437 goto out; 1438 } 1439 1440 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1441 1442 if (bootverbose) { 1443 ciss_printf(sc, "%d physical device%s\n", 1444 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1445 } 1446 1447 /* 1448 * Figure out the bus mapping. 1449 * Logical buses include both the local logical bus for local arrays and 1450 * proxy buses for remote arrays. Physical buses are numbered by the 1451 * controller and represent physical buses that hold physical devices. 1452 * We shift these bus numbers so that everything fits into a single flat 1453 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1454 * numbers, and the physical bus numbers are shifted to be above that. 1455 * This results in the various driver arrays being indexed as follows: 1456 * 1457 * ciss_controllers[] - indexed by logical bus 1458 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1459 * being shifted by 32. 1460 * ciss_logical[][] - indexed by logical bus 1461 * ciss_physical[][] - indexed by physical bus 1462 * 1463 * XXX This is getting more and more hackish. CISS really doesn't play 1464 * well with a standard SCSI model; devices are addressed via magic 1465 * cookies, not via b/t/l addresses. Since there is no way to store 1466 * the cookie in the CAM device object, we have to keep these lookup 1467 * tables handy so that the devices can be found quickly at the cost 1468 * of wasting memory and having a convoluted lookup scheme. This 1469 * driver should probably be converted to block interface. 1470 */ 1471 /* 1472 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1473 * controller. A proxy controller is another physical controller 1474 * behind the primary PCI controller. We need to know about this 1475 * so that BMIC commands can be properly targeted. There can be 1476 * proxy controllers attached to a single PCI controller, so 1477 * find the highest numbered one so the array can be properly 1478 * sized. 1479 */ 1480 sc->ciss_max_logical_bus = 1; 1481 for (i = 0; i < nphys; i++) { 1482 if (cll->lun[i].physical.extra_address == 0) { 1483 bus = cll->lun[i].physical.bus; 1484 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1485 } else { 1486 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1487 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1488 } 1489 } 1490 1491 sc->ciss_controllers = 1492 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1493 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1494 1495 if (sc->ciss_controllers == NULL) { 1496 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1497 error = ENOMEM; 1498 goto out; 1499 } 1500 1501 /* setup a map of controller addresses */ 1502 for (i = 0; i < nphys; i++) { 1503 if (cll->lun[i].physical.extra_address == 0) { 1504 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1505 } 1506 } 1507 1508 sc->ciss_physical = 1509 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1510 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1511 if (sc->ciss_physical == NULL) { 1512 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1513 error = ENOMEM; 1514 goto out; 1515 } 1516 1517 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1518 sc->ciss_physical[i] = 1519 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1520 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1521 if (sc->ciss_physical[i] == NULL) { 1522 ciss_printf(sc, "Could not allocate memory for target map\n"); 1523 error = ENOMEM; 1524 goto out; 1525 } 1526 } 1527 1528 ciss_filter_physical(sc, cll); 1529 1530 out: 1531 if (cll != NULL) 1532 free(cll, CISS_MALLOC_CLASS); 1533 1534 return(error); 1535 } 1536 1537 static int 1538 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1539 { 1540 u_int32_t ea; 1541 int i, nphys; 1542 int bus, target; 1543 1544 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1545 for (i = 0; i < nphys; i++) { 1546 if (cll->lun[i].physical.extra_address == 0) 1547 continue; 1548 1549 /* 1550 * Filter out devices that we don't want. Level 3 LUNs could 1551 * probably be supported, but the docs don't give enough of a 1552 * hint to know how. 1553 * 1554 * The mode field of the physical address is likely set to have 1555 * hard disks masked out. Honor it unless the user has overridden 1556 * us with the tunable. We also munge the inquiry data for these 1557 * disks so that they only show up as passthrough devices. Keeping 1558 * them visible in this fashion is useful for doing things like 1559 * flashing firmware. 1560 */ 1561 ea = cll->lun[i].physical.extra_address; 1562 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1563 (CISS_EXTRA_MODE2(ea) == 0x3)) 1564 continue; 1565 if ((ciss_expose_hidden_physical == 0) && 1566 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1567 continue; 1568 1569 /* 1570 * Note: CISS firmware numbers physical busses starting at '1', not 1571 * '0'. This numbering is internal to the firmware and is only 1572 * used as a hint here. 1573 */ 1574 bus = CISS_EXTRA_BUS2(ea) - 1; 1575 target = CISS_EXTRA_TARGET2(ea); 1576 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1577 sc->ciss_physical[bus][target].cp_online = 1; 1578 } 1579 1580 return (0); 1581 } 1582 1583 static int 1584 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1585 { 1586 struct ciss_request *cr; 1587 struct ciss_command *cc; 1588 struct scsi_inquiry *inq; 1589 int error; 1590 int command_status; 1591 1592 cr = NULL; 1593 1594 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1595 1596 if ((error = ciss_get_request(sc, &cr)) != 0) 1597 goto out; 1598 1599 cc = cr->cr_cc; 1600 cr->cr_data = &ld->cl_geometry; 1601 cr->cr_length = sizeof(ld->cl_geometry); 1602 cr->cr_flags = CISS_REQ_DATAIN; 1603 1604 cc->header.address = ld->cl_address; 1605 cc->cdb.cdb_length = 6; 1606 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1607 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1608 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1609 cc->cdb.timeout = 30; 1610 1611 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1612 inq->opcode = INQUIRY; 1613 inq->byte2 = SI_EVPD; 1614 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1615 inq->length = sizeof(ld->cl_geometry); 1616 1617 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1618 ciss_printf(sc, "error getting geometry (%d)\n", error); 1619 goto out; 1620 } 1621 1622 ciss_report_request(cr, &command_status, NULL); 1623 switch(command_status) { 1624 case CISS_CMD_STATUS_SUCCESS: 1625 case CISS_CMD_STATUS_DATA_UNDERRUN: 1626 break; 1627 case CISS_CMD_STATUS_DATA_OVERRUN: 1628 ciss_printf(sc, "WARNING: Data overrun\n"); 1629 break; 1630 default: 1631 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1632 ciss_name_command_status(command_status)); 1633 break; 1634 } 1635 1636 out: 1637 if (cr != NULL) 1638 ciss_release_request(cr); 1639 return(error); 1640 } 1641 /************************************************************************ 1642 * Identify a logical drive, initialise state related to it. 1643 */ 1644 static int 1645 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1646 { 1647 struct ciss_request *cr; 1648 struct ciss_command *cc; 1649 struct ciss_bmic_cdb *cbc; 1650 int error, command_status; 1651 1652 debug_called(1); 1653 1654 cr = NULL; 1655 1656 /* 1657 * Build a BMIC request to fetch the drive ID. 1658 */ 1659 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1660 (void **)&ld->cl_ldrive, 1661 sizeof(*ld->cl_ldrive))) != 0) 1662 goto out; 1663 cc = cr->cr_cc; 1664 cc->header.address = *ld->cl_controller; /* target controller */ 1665 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1666 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1667 1668 /* 1669 * Submit the request and wait for it to complete. 1670 */ 1671 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1672 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1673 goto out; 1674 } 1675 1676 /* 1677 * Check response. 1678 */ 1679 ciss_report_request(cr, &command_status, NULL); 1680 switch(command_status) { 1681 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1682 break; 1683 case CISS_CMD_STATUS_DATA_UNDERRUN: 1684 case CISS_CMD_STATUS_DATA_OVERRUN: 1685 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1686 default: 1687 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1688 ciss_name_command_status(command_status)); 1689 error = EIO; 1690 goto out; 1691 } 1692 ciss_release_request(cr); 1693 cr = NULL; 1694 1695 /* 1696 * Build a CISS BMIC command to get the logical drive status. 1697 */ 1698 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1699 goto out; 1700 1701 /* 1702 * Get the logical drive geometry. 1703 */ 1704 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1705 goto out; 1706 1707 /* 1708 * Print the drive's basic characteristics. 1709 */ 1710 if (bootverbose) { 1711 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1712 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1713 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1714 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1715 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1716 ld->cl_ldrive->block_size)); 1717 1718 ciss_print_ldrive(sc, ld); 1719 } 1720 out: 1721 if (error != 0) { 1722 /* make the drive not-exist */ 1723 ld->cl_status = CISS_LD_NONEXISTENT; 1724 if (ld->cl_ldrive != NULL) { 1725 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1726 ld->cl_ldrive = NULL; 1727 } 1728 if (ld->cl_lstatus != NULL) { 1729 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1730 ld->cl_lstatus = NULL; 1731 } 1732 } 1733 if (cr != NULL) 1734 ciss_release_request(cr); 1735 1736 return(error); 1737 } 1738 1739 /************************************************************************ 1740 * Get status for a logical drive. 1741 * 1742 * XXX should we also do this in response to Test Unit Ready? 1743 */ 1744 static int 1745 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1746 { 1747 struct ciss_request *cr; 1748 struct ciss_command *cc; 1749 struct ciss_bmic_cdb *cbc; 1750 int error, command_status; 1751 1752 /* 1753 * Build a CISS BMIC command to get the logical drive status. 1754 */ 1755 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1756 (void **)&ld->cl_lstatus, 1757 sizeof(*ld->cl_lstatus))) != 0) 1758 goto out; 1759 cc = cr->cr_cc; 1760 cc->header.address = *ld->cl_controller; /* target controller */ 1761 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1762 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1763 1764 /* 1765 * Submit the request and wait for it to complete. 1766 */ 1767 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1768 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1769 goto out; 1770 } 1771 1772 /* 1773 * Check response. 1774 */ 1775 ciss_report_request(cr, &command_status, NULL); 1776 switch(command_status) { 1777 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1778 break; 1779 case CISS_CMD_STATUS_DATA_UNDERRUN: 1780 case CISS_CMD_STATUS_DATA_OVERRUN: 1781 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1782 default: 1783 ciss_printf(sc, "error reading logical drive status (%s)\n", 1784 ciss_name_command_status(command_status)); 1785 error = EIO; 1786 goto out; 1787 } 1788 1789 /* 1790 * Set the drive's summary status based on the returned status. 1791 * 1792 * XXX testing shows that a failed JBOD drive comes back at next 1793 * boot in "queued for expansion" mode. WTF? 1794 */ 1795 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1796 1797 out: 1798 if (cr != NULL) 1799 ciss_release_request(cr); 1800 return(error); 1801 } 1802 1803 /************************************************************************ 1804 * Notify the adapter of a config update. 1805 */ 1806 static int 1807 ciss_update_config(struct ciss_softc *sc) 1808 { 1809 int i; 1810 1811 debug_called(1); 1812 1813 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1814 for (i = 0; i < 1000; i++) { 1815 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1816 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1817 return(0); 1818 } 1819 DELAY(1000); 1820 } 1821 return(1); 1822 } 1823 1824 /************************************************************************ 1825 * Accept new media into a logical drive. 1826 * 1827 * XXX The drive has previously been offline; it would be good if we 1828 * could make sure it's not open right now. 1829 */ 1830 static int 1831 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1832 { 1833 struct ciss_request *cr; 1834 struct ciss_command *cc; 1835 struct ciss_bmic_cdb *cbc; 1836 int command_status; 1837 int error = 0, ldrive; 1838 1839 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1840 1841 debug(0, "bringing logical drive %d back online"); 1842 1843 /* 1844 * Build a CISS BMIC command to bring the drive back online. 1845 */ 1846 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1847 NULL, 0)) != 0) 1848 goto out; 1849 cc = cr->cr_cc; 1850 cc->header.address = *ld->cl_controller; /* target controller */ 1851 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1852 cbc->log_drive = ldrive; 1853 1854 /* 1855 * Submit the request and wait for it to complete. 1856 */ 1857 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1858 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1859 goto out; 1860 } 1861 1862 /* 1863 * Check response. 1864 */ 1865 ciss_report_request(cr, &command_status, NULL); 1866 switch(command_status) { 1867 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1868 /* we should get a logical drive status changed event here */ 1869 break; 1870 default: 1871 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1872 ciss_name_command_status(command_status)); 1873 break; 1874 } 1875 1876 out: 1877 if (cr != NULL) 1878 ciss_release_request(cr); 1879 return(error); 1880 } 1881 1882 /************************************************************************ 1883 * Release adapter resources. 1884 */ 1885 static void 1886 ciss_free(struct ciss_softc *sc) 1887 { 1888 struct ciss_request *cr; 1889 int i, j; 1890 1891 debug_called(1); 1892 1893 /* we're going away */ 1894 sc->ciss_flags |= CISS_FLAG_ABORTING; 1895 1896 /* terminate the periodic heartbeat routine */ 1897 callout_stop(&sc->ciss_periodic); 1898 1899 /* cancel the Event Notify chain */ 1900 ciss_notify_abort(sc); 1901 1902 ciss_kill_notify_thread(sc); 1903 1904 /* disconnect from CAM */ 1905 if (sc->ciss_cam_sim) { 1906 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1907 if (sc->ciss_cam_sim[i]) { 1908 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1909 cam_sim_free(sc->ciss_cam_sim[i], 0); 1910 } 1911 } 1912 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1913 CISS_PHYSICAL_BASE; i++) { 1914 if (sc->ciss_cam_sim[i]) { 1915 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1916 cam_sim_free(sc->ciss_cam_sim[i], 0); 1917 } 1918 } 1919 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1920 } 1921 if (sc->ciss_cam_devq) 1922 cam_simq_free(sc->ciss_cam_devq); 1923 1924 /* remove the control device */ 1925 mtx_unlock(&sc->ciss_mtx); 1926 if (sc->ciss_dev_t != NULL) 1927 destroy_dev(sc->ciss_dev_t); 1928 1929 /* Final cleanup of the callout. */ 1930 callout_drain(&sc->ciss_periodic); 1931 mtx_destroy(&sc->ciss_mtx); 1932 1933 /* free the controller data */ 1934 if (sc->ciss_id != NULL) 1935 free(sc->ciss_id, CISS_MALLOC_CLASS); 1936 1937 /* release I/O resources */ 1938 if (sc->ciss_regs_resource != NULL) 1939 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1940 sc->ciss_regs_rid, sc->ciss_regs_resource); 1941 if (sc->ciss_cfg_resource != NULL) 1942 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1943 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1944 if (sc->ciss_intr != NULL) 1945 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1946 if (sc->ciss_irq_resource != NULL) 1947 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1948 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1949 if (sc->ciss_msi) 1950 pci_release_msi(sc->ciss_dev); 1951 1952 while ((cr = ciss_dequeue_free(sc)) != NULL) 1953 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1954 if (sc->ciss_buffer_dmat) 1955 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1956 1957 /* destroy command memory and DMA tag */ 1958 if (sc->ciss_command != NULL) { 1959 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1960 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1961 } 1962 if (sc->ciss_command_dmat) 1963 bus_dma_tag_destroy(sc->ciss_command_dmat); 1964 1965 if (sc->ciss_reply) { 1966 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1967 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1968 } 1969 if (sc->ciss_reply_dmat) 1970 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1971 1972 /* destroy DMA tags */ 1973 if (sc->ciss_parent_dmat) 1974 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1975 if (sc->ciss_logical) { 1976 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1977 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1978 if (sc->ciss_logical[i][j].cl_ldrive) 1979 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1980 if (sc->ciss_logical[i][j].cl_lstatus) 1981 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1982 } 1983 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1984 } 1985 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1986 } 1987 1988 if (sc->ciss_physical) { 1989 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1990 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1991 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1992 } 1993 1994 if (sc->ciss_controllers) 1995 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1996 1997 } 1998 1999 /************************************************************************ 2000 * Give a command to the adapter. 2001 * 2002 * Note that this uses the simple transport layer directly. If we 2003 * want to add support for other layers, we'll need a switch of some 2004 * sort. 2005 * 2006 * Note that the simple transport layer has no way of refusing a 2007 * command; we only have as many request structures as the adapter 2008 * supports commands, so we don't have to check (this presumes that 2009 * the adapter can handle commands as fast as we throw them at it). 2010 */ 2011 static int 2012 ciss_start(struct ciss_request *cr) 2013 { 2014 struct ciss_command *cc; /* XXX debugging only */ 2015 int error; 2016 2017 cc = cr->cr_cc; 2018 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2019 2020 /* 2021 * Map the request's data. 2022 */ 2023 if ((error = ciss_map_request(cr))) 2024 return(error); 2025 2026 #if 0 2027 ciss_print_request(cr); 2028 #endif 2029 2030 return(0); 2031 } 2032 2033 /************************************************************************ 2034 * Fetch completed request(s) from the adapter, queue them for 2035 * completion handling. 2036 * 2037 * Note that this uses the simple transport layer directly. If we 2038 * want to add support for other layers, we'll need a switch of some 2039 * sort. 2040 * 2041 * Note that the simple transport mechanism does not require any 2042 * reentrancy protection; the OPQ read is atomic. If there is a 2043 * chance of a race with something else that might move the request 2044 * off the busy list, then we will have to lock against that 2045 * (eg. timeouts, etc.) 2046 */ 2047 static void 2048 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2049 { 2050 struct ciss_request *cr; 2051 struct ciss_command *cc; 2052 u_int32_t tag, index; 2053 2054 debug_called(3); 2055 2056 /* 2057 * Loop quickly taking requests from the adapter and moving them 2058 * to the completed queue. 2059 */ 2060 for (;;) { 2061 2062 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2063 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2064 break; 2065 index = tag >> 2; 2066 debug(2, "completed command %d%s", index, 2067 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2068 if (index >= sc->ciss_max_requests) { 2069 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2070 continue; 2071 } 2072 cr = &(sc->ciss_request[index]); 2073 cc = cr->cr_cc; 2074 cc->header.host_tag = tag; /* not updated by adapter */ 2075 ciss_enqueue_complete(cr, qh); 2076 } 2077 2078 } 2079 2080 static void 2081 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2082 { 2083 struct ciss_request *cr; 2084 struct ciss_command *cc; 2085 u_int32_t tag, index; 2086 2087 debug_called(3); 2088 2089 /* 2090 * Loop quickly taking requests from the adapter and moving them 2091 * to the completed queue. 2092 */ 2093 for (;;) { 2094 tag = sc->ciss_reply[sc->ciss_rqidx]; 2095 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2096 break; 2097 index = tag >> 2; 2098 debug(2, "completed command %d%s\n", index, 2099 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2100 if (index < sc->ciss_max_requests) { 2101 cr = &(sc->ciss_request[index]); 2102 cc = cr->cr_cc; 2103 cc->header.host_tag = tag; /* not updated by adapter */ 2104 ciss_enqueue_complete(cr, qh); 2105 } else { 2106 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2107 } 2108 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2109 sc->ciss_rqidx = 0; 2110 sc->ciss_cycle ^= 1; 2111 } 2112 } 2113 2114 } 2115 2116 /************************************************************************ 2117 * Take an interrupt from the adapter. 2118 */ 2119 static void 2120 ciss_intr(void *arg) 2121 { 2122 cr_qhead_t qh; 2123 struct ciss_softc *sc = (struct ciss_softc *)arg; 2124 2125 /* 2126 * The only interrupt we recognise indicates that there are 2127 * entries in the outbound post queue. 2128 */ 2129 STAILQ_INIT(&qh); 2130 ciss_done(sc, &qh); 2131 mtx_lock(&sc->ciss_mtx); 2132 ciss_complete(sc, &qh); 2133 mtx_unlock(&sc->ciss_mtx); 2134 } 2135 2136 static void 2137 ciss_perf_intr(void *arg) 2138 { 2139 struct ciss_softc *sc = (struct ciss_softc *)arg; 2140 2141 /* Clear the interrupt and flush the bridges. Docs say that the flush 2142 * needs to be done twice, which doesn't seem right. 2143 */ 2144 CISS_TL_PERF_CLEAR_INT(sc); 2145 CISS_TL_PERF_FLUSH_INT(sc); 2146 2147 ciss_perf_msi_intr(sc); 2148 } 2149 2150 static void 2151 ciss_perf_msi_intr(void *arg) 2152 { 2153 cr_qhead_t qh; 2154 struct ciss_softc *sc = (struct ciss_softc *)arg; 2155 2156 STAILQ_INIT(&qh); 2157 ciss_perf_done(sc, &qh); 2158 mtx_lock(&sc->ciss_mtx); 2159 ciss_complete(sc, &qh); 2160 mtx_unlock(&sc->ciss_mtx); 2161 } 2162 2163 2164 /************************************************************************ 2165 * Process completed requests. 2166 * 2167 * Requests can be completed in three fashions: 2168 * 2169 * - by invoking a callback function (cr_complete is non-null) 2170 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2171 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2172 */ 2173 static void 2174 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2175 { 2176 struct ciss_request *cr; 2177 2178 debug_called(2); 2179 2180 /* 2181 * Loop taking requests off the completed queue and performing 2182 * completion processing on them. 2183 */ 2184 for (;;) { 2185 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2186 break; 2187 ciss_unmap_request(cr); 2188 2189 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2190 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2191 cr->cr_flags &= ~CISS_REQ_BUSY; 2192 2193 /* 2194 * If the request has a callback, invoke it. 2195 */ 2196 if (cr->cr_complete != NULL) { 2197 cr->cr_complete(cr); 2198 continue; 2199 } 2200 2201 /* 2202 * If someone is sleeping on this request, wake them up. 2203 */ 2204 if (cr->cr_flags & CISS_REQ_SLEEP) { 2205 cr->cr_flags &= ~CISS_REQ_SLEEP; 2206 wakeup(cr); 2207 continue; 2208 } 2209 2210 /* 2211 * If someone is polling this request for completion, signal. 2212 */ 2213 if (cr->cr_flags & CISS_REQ_POLL) { 2214 cr->cr_flags &= ~CISS_REQ_POLL; 2215 continue; 2216 } 2217 2218 /* 2219 * Give up and throw the request back on the free queue. This 2220 * should never happen; resources will probably be lost. 2221 */ 2222 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2223 ciss_enqueue_free(cr); 2224 } 2225 } 2226 2227 /************************************************************************ 2228 * Report on the completion status of a request, and pass back SCSI 2229 * and command status values. 2230 */ 2231 static int 2232 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2233 { 2234 struct ciss_command *cc; 2235 struct ciss_error_info *ce; 2236 2237 debug_called(2); 2238 2239 cc = cr->cr_cc; 2240 ce = (struct ciss_error_info *)&(cc->sg[0]); 2241 2242 /* 2243 * We don't consider data under/overrun an error for the Report 2244 * Logical/Physical LUNs commands. 2245 */ 2246 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2247 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2248 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2249 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2250 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2251 (cc->cdb.cdb[0] == INQUIRY))) { 2252 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2253 debug(2, "ignoring irrelevant under/overrun error"); 2254 } 2255 2256 /* 2257 * Check the command's error bit, if clear, there's no status and 2258 * everything is OK. 2259 */ 2260 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2261 if (scsi_status != NULL) 2262 *scsi_status = SCSI_STATUS_OK; 2263 if (command_status != NULL) 2264 *command_status = CISS_CMD_STATUS_SUCCESS; 2265 return(0); 2266 } else { 2267 if (command_status != NULL) 2268 *command_status = ce->command_status; 2269 if (scsi_status != NULL) { 2270 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2271 *scsi_status = ce->scsi_status; 2272 } else { 2273 *scsi_status = -1; 2274 } 2275 } 2276 if (bootverbose) 2277 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2278 ce->command_status, ciss_name_command_status(ce->command_status), 2279 ce->scsi_status); 2280 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2281 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2282 ce->additional_error_info.invalid_command.offense_size, 2283 ce->additional_error_info.invalid_command.offense_offset, 2284 ce->additional_error_info.invalid_command.offense_value, 2285 func); 2286 } 2287 } 2288 #if 0 2289 ciss_print_request(cr); 2290 #endif 2291 return(1); 2292 } 2293 2294 /************************************************************************ 2295 * Issue a request and don't return until it's completed. 2296 * 2297 * Depending on adapter status, we may poll or sleep waiting for 2298 * completion. 2299 */ 2300 static int 2301 ciss_synch_request(struct ciss_request *cr, int timeout) 2302 { 2303 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2304 return(ciss_wait_request(cr, timeout)); 2305 } else { 2306 return(ciss_poll_request(cr, timeout)); 2307 } 2308 } 2309 2310 /************************************************************************ 2311 * Issue a request and poll for completion. 2312 * 2313 * Timeout in milliseconds. 2314 */ 2315 static int 2316 ciss_poll_request(struct ciss_request *cr, int timeout) 2317 { 2318 cr_qhead_t qh; 2319 struct ciss_softc *sc; 2320 int error; 2321 2322 debug_called(2); 2323 2324 STAILQ_INIT(&qh); 2325 sc = cr->cr_sc; 2326 cr->cr_flags |= CISS_REQ_POLL; 2327 if ((error = ciss_start(cr)) != 0) 2328 return(error); 2329 2330 do { 2331 if (sc->ciss_perf) 2332 ciss_perf_done(sc, &qh); 2333 else 2334 ciss_done(sc, &qh); 2335 ciss_complete(sc, &qh); 2336 if (!(cr->cr_flags & CISS_REQ_POLL)) 2337 return(0); 2338 DELAY(1000); 2339 } while (timeout-- >= 0); 2340 return(EWOULDBLOCK); 2341 } 2342 2343 /************************************************************************ 2344 * Issue a request and sleep waiting for completion. 2345 * 2346 * Timeout in milliseconds. Note that a spurious wakeup will reset 2347 * the timeout. 2348 */ 2349 static int 2350 ciss_wait_request(struct ciss_request *cr, int timeout) 2351 { 2352 int error; 2353 2354 debug_called(2); 2355 2356 cr->cr_flags |= CISS_REQ_SLEEP; 2357 if ((error = ciss_start(cr)) != 0) 2358 return(error); 2359 2360 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2361 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2362 } 2363 return(error); 2364 } 2365 2366 #if 0 2367 /************************************************************************ 2368 * Abort a request. Note that a potential exists here to race the 2369 * request being completed; the caller must deal with this. 2370 */ 2371 static int 2372 ciss_abort_request(struct ciss_request *ar) 2373 { 2374 struct ciss_request *cr; 2375 struct ciss_command *cc; 2376 struct ciss_message_cdb *cmc; 2377 int error; 2378 2379 debug_called(1); 2380 2381 /* get a request */ 2382 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2383 return(error); 2384 2385 /* build the abort command */ 2386 cc = cr->cr_cc; 2387 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2388 cc->header.address.physical.target = 0; 2389 cc->header.address.physical.bus = 0; 2390 cc->cdb.cdb_length = sizeof(*cmc); 2391 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2392 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2393 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2394 cc->cdb.timeout = 30; 2395 2396 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2397 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2398 cmc->type = CISS_MESSAGE_ABORT_TASK; 2399 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2400 2401 /* 2402 * Send the request and wait for a response. If we believe we 2403 * aborted the request OK, clear the flag that indicates it's 2404 * running. 2405 */ 2406 error = ciss_synch_request(cr, 35 * 1000); 2407 if (!error) 2408 error = ciss_report_request(cr, NULL, NULL); 2409 ciss_release_request(cr); 2410 2411 return(error); 2412 } 2413 #endif 2414 2415 2416 /************************************************************************ 2417 * Fetch and initialise a request 2418 */ 2419 static int 2420 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2421 { 2422 struct ciss_request *cr; 2423 2424 debug_called(2); 2425 2426 /* 2427 * Get a request and clean it up. 2428 */ 2429 if ((cr = ciss_dequeue_free(sc)) == NULL) 2430 return(ENOMEM); 2431 2432 cr->cr_data = NULL; 2433 cr->cr_flags = 0; 2434 cr->cr_complete = NULL; 2435 cr->cr_private = NULL; 2436 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2437 2438 ciss_preen_command(cr); 2439 *crp = cr; 2440 return(0); 2441 } 2442 2443 static void 2444 ciss_preen_command(struct ciss_request *cr) 2445 { 2446 struct ciss_command *cc; 2447 u_int32_t cmdphys; 2448 2449 /* 2450 * Clean up the command structure. 2451 * 2452 * Note that we set up the error_info structure here, since the 2453 * length can be overwritten by any command. 2454 */ 2455 cc = cr->cr_cc; 2456 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2457 cc->header.sg_total = 0; 2458 cc->header.host_tag = cr->cr_tag << 2; 2459 cc->header.host_tag_zeroes = 0; 2460 cmdphys = cr->cr_ccphys; 2461 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2462 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2463 } 2464 2465 /************************************************************************ 2466 * Release a request to the free list. 2467 */ 2468 static void 2469 ciss_release_request(struct ciss_request *cr) 2470 { 2471 struct ciss_softc *sc; 2472 2473 debug_called(2); 2474 2475 sc = cr->cr_sc; 2476 2477 /* release the request to the free queue */ 2478 ciss_requeue_free(cr); 2479 } 2480 2481 /************************************************************************ 2482 * Allocate a request that will be used to send a BMIC command. Do some 2483 * of the common setup here to avoid duplicating it everywhere else. 2484 */ 2485 static int 2486 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2487 int opcode, void **bufp, size_t bufsize) 2488 { 2489 struct ciss_request *cr; 2490 struct ciss_command *cc; 2491 struct ciss_bmic_cdb *cbc; 2492 void *buf; 2493 int error; 2494 int dataout; 2495 2496 debug_called(2); 2497 2498 cr = NULL; 2499 buf = NULL; 2500 2501 /* 2502 * Get a request. 2503 */ 2504 if ((error = ciss_get_request(sc, &cr)) != 0) 2505 goto out; 2506 2507 /* 2508 * Allocate data storage if requested, determine the data direction. 2509 */ 2510 dataout = 0; 2511 if ((bufsize > 0) && (bufp != NULL)) { 2512 if (*bufp == NULL) { 2513 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2514 error = ENOMEM; 2515 goto out; 2516 } 2517 } else { 2518 buf = *bufp; 2519 dataout = 1; /* we are given a buffer, so we are writing */ 2520 } 2521 } 2522 2523 /* 2524 * Build a CISS BMIC command to get the logical drive ID. 2525 */ 2526 cr->cr_data = buf; 2527 cr->cr_length = bufsize; 2528 if (!dataout) 2529 cr->cr_flags = CISS_REQ_DATAIN; 2530 2531 cc = cr->cr_cc; 2532 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2533 cc->header.address.physical.bus = 0; 2534 cc->header.address.physical.target = 0; 2535 cc->cdb.cdb_length = sizeof(*cbc); 2536 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2537 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2538 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2539 cc->cdb.timeout = 0; 2540 2541 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2542 bzero(cbc, sizeof(*cbc)); 2543 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2544 cbc->bmic_opcode = opcode; 2545 cbc->size = htons((u_int16_t)bufsize); 2546 2547 out: 2548 if (error) { 2549 if (cr != NULL) 2550 ciss_release_request(cr); 2551 } else { 2552 *crp = cr; 2553 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2554 *bufp = buf; 2555 } 2556 return(error); 2557 } 2558 2559 /************************************************************************ 2560 * Handle a command passed in from userspace. 2561 */ 2562 static int 2563 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2564 { 2565 struct ciss_request *cr; 2566 struct ciss_command *cc; 2567 struct ciss_error_info *ce; 2568 int error = 0; 2569 2570 debug_called(1); 2571 2572 cr = NULL; 2573 2574 /* 2575 * Get a request. 2576 */ 2577 while (ciss_get_request(sc, &cr) != 0) 2578 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2579 cc = cr->cr_cc; 2580 2581 /* 2582 * Allocate an in-kernel databuffer if required, copy in user data. 2583 */ 2584 mtx_unlock(&sc->ciss_mtx); 2585 cr->cr_length = ioc->buf_size; 2586 if (ioc->buf_size > 0) { 2587 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2588 error = ENOMEM; 2589 goto out_unlocked; 2590 } 2591 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2592 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2593 goto out_unlocked; 2594 } 2595 } 2596 2597 /* 2598 * Build the request based on the user command. 2599 */ 2600 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2601 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2602 2603 /* XXX anything else to populate here? */ 2604 mtx_lock(&sc->ciss_mtx); 2605 2606 /* 2607 * Run the command. 2608 */ 2609 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2610 debug(0, "request failed - %d", error); 2611 goto out; 2612 } 2613 2614 /* 2615 * Check to see if the command succeeded. 2616 */ 2617 ce = (struct ciss_error_info *)&(cc->sg[0]); 2618 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2619 bzero(ce, sizeof(*ce)); 2620 2621 /* 2622 * Copy the results back to the user. 2623 */ 2624 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2625 mtx_unlock(&sc->ciss_mtx); 2626 if ((ioc->buf_size > 0) && 2627 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2628 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2629 goto out_unlocked; 2630 } 2631 2632 /* done OK */ 2633 error = 0; 2634 2635 out_unlocked: 2636 mtx_lock(&sc->ciss_mtx); 2637 2638 out: 2639 if ((cr != NULL) && (cr->cr_data != NULL)) 2640 free(cr->cr_data, CISS_MALLOC_CLASS); 2641 if (cr != NULL) 2642 ciss_release_request(cr); 2643 return(error); 2644 } 2645 2646 /************************************************************************ 2647 * Map a request into bus-visible space, initialise the scatter/gather 2648 * list. 2649 */ 2650 static int 2651 ciss_map_request(struct ciss_request *cr) 2652 { 2653 struct ciss_softc *sc; 2654 int error = 0; 2655 2656 debug_called(2); 2657 2658 sc = cr->cr_sc; 2659 2660 /* check that mapping is necessary */ 2661 if (cr->cr_flags & CISS_REQ_MAPPED) 2662 return(0); 2663 2664 cr->cr_flags |= CISS_REQ_MAPPED; 2665 2666 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2667 BUS_DMASYNC_PREWRITE); 2668 2669 if (cr->cr_data != NULL) { 2670 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2671 cr->cr_data, cr->cr_length, 2672 ciss_request_map_helper, cr, 0); 2673 if (error != 0) 2674 return (error); 2675 } else { 2676 /* 2677 * Post the command to the adapter. 2678 */ 2679 cr->cr_sg_tag = CISS_SG_NONE; 2680 cr->cr_flags |= CISS_REQ_BUSY; 2681 if (sc->ciss_perf) 2682 CISS_TL_PERF_POST_CMD(sc, cr); 2683 else 2684 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2685 } 2686 2687 return(0); 2688 } 2689 2690 static void 2691 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2692 { 2693 struct ciss_command *cc; 2694 struct ciss_request *cr; 2695 struct ciss_softc *sc; 2696 int i; 2697 2698 debug_called(2); 2699 2700 cr = (struct ciss_request *)arg; 2701 sc = cr->cr_sc; 2702 cc = cr->cr_cc; 2703 2704 for (i = 0; i < nseg; i++) { 2705 cc->sg[i].address = segs[i].ds_addr; 2706 cc->sg[i].length = segs[i].ds_len; 2707 cc->sg[i].extension = 0; 2708 } 2709 /* we leave the s/g table entirely within the command */ 2710 cc->header.sg_in_list = nseg; 2711 cc->header.sg_total = nseg; 2712 2713 if (cr->cr_flags & CISS_REQ_DATAIN) 2714 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2715 if (cr->cr_flags & CISS_REQ_DATAOUT) 2716 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2717 2718 if (nseg == 0) 2719 cr->cr_sg_tag = CISS_SG_NONE; 2720 else if (nseg == 1) 2721 cr->cr_sg_tag = CISS_SG_1; 2722 else if (nseg == 2) 2723 cr->cr_sg_tag = CISS_SG_2; 2724 else if (nseg <= 4) 2725 cr->cr_sg_tag = CISS_SG_4; 2726 else if (nseg <= 8) 2727 cr->cr_sg_tag = CISS_SG_8; 2728 else if (nseg <= 16) 2729 cr->cr_sg_tag = CISS_SG_16; 2730 else if (nseg <= 32) 2731 cr->cr_sg_tag = CISS_SG_32; 2732 else 2733 cr->cr_sg_tag = CISS_SG_MAX; 2734 2735 /* 2736 * Post the command to the adapter. 2737 */ 2738 cr->cr_flags |= CISS_REQ_BUSY; 2739 if (sc->ciss_perf) 2740 CISS_TL_PERF_POST_CMD(sc, cr); 2741 else 2742 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2743 } 2744 2745 /************************************************************************ 2746 * Unmap a request from bus-visible space. 2747 */ 2748 static void 2749 ciss_unmap_request(struct ciss_request *cr) 2750 { 2751 struct ciss_softc *sc; 2752 2753 debug_called(2); 2754 2755 sc = cr->cr_sc; 2756 2757 /* check that unmapping is necessary */ 2758 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2759 return; 2760 2761 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2762 BUS_DMASYNC_POSTWRITE); 2763 2764 if (cr->cr_data == NULL) 2765 goto out; 2766 2767 if (cr->cr_flags & CISS_REQ_DATAIN) 2768 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2769 if (cr->cr_flags & CISS_REQ_DATAOUT) 2770 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2771 2772 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2773 out: 2774 cr->cr_flags &= ~CISS_REQ_MAPPED; 2775 } 2776 2777 /************************************************************************ 2778 * Attach the driver to CAM. 2779 * 2780 * We put all the logical drives on a single SCSI bus. 2781 */ 2782 static int 2783 ciss_cam_init(struct ciss_softc *sc) 2784 { 2785 int i, maxbus; 2786 2787 debug_called(1); 2788 2789 /* 2790 * Allocate a devq. We can reuse this for the masked physical 2791 * devices if we decide to export these as well. 2792 */ 2793 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2794 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2795 return(ENOMEM); 2796 } 2797 2798 /* 2799 * Create a SIM. 2800 * 2801 * This naturally wastes a bit of memory. The alternative is to allocate 2802 * and register each bus as it is found, and then track them on a linked 2803 * list. Unfortunately, the driver has a few places where it needs to 2804 * look up the SIM based solely on bus number, and it's unclear whether 2805 * a list traversal would work for these situations. 2806 */ 2807 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2808 CISS_PHYSICAL_BASE); 2809 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2810 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2811 if (sc->ciss_cam_sim == NULL) { 2812 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2813 return(ENOMEM); 2814 } 2815 2816 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2817 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2818 "ciss", sc, 2819 device_get_unit(sc->ciss_dev), 2820 &sc->ciss_mtx, 2821 2, 2822 sc->ciss_max_requests - 2, 2823 sc->ciss_cam_devq)) == NULL) { 2824 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2825 return(ENOMEM); 2826 } 2827 2828 /* 2829 * Register bus with this SIM. 2830 */ 2831 mtx_lock(&sc->ciss_mtx); 2832 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2833 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2834 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2835 mtx_unlock(&sc->ciss_mtx); 2836 return (ENXIO); 2837 } 2838 } 2839 mtx_unlock(&sc->ciss_mtx); 2840 } 2841 2842 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2843 CISS_PHYSICAL_BASE; i++) { 2844 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2845 "ciss", sc, 2846 device_get_unit(sc->ciss_dev), 2847 &sc->ciss_mtx, 1, 2848 sc->ciss_max_requests - 2, 2849 sc->ciss_cam_devq)) == NULL) { 2850 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2851 return (ENOMEM); 2852 } 2853 2854 mtx_lock(&sc->ciss_mtx); 2855 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2856 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2857 mtx_unlock(&sc->ciss_mtx); 2858 return (ENXIO); 2859 } 2860 mtx_unlock(&sc->ciss_mtx); 2861 } 2862 2863 /* 2864 * Initiate a rescan of the bus. 2865 */ 2866 mtx_lock(&sc->ciss_mtx); 2867 ciss_cam_rescan_all(sc); 2868 mtx_unlock(&sc->ciss_mtx); 2869 2870 return(0); 2871 } 2872 2873 /************************************************************************ 2874 * Initiate a rescan of the 'logical devices' SIM 2875 */ 2876 static void 2877 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2878 { 2879 struct cam_path *path; 2880 union ccb *ccb; 2881 2882 debug_called(1); 2883 2884 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2885 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2886 return; 2887 } 2888 2889 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2890 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2891 ciss_printf(sc, "rescan failed (can't create path)\n"); 2892 free(ccb, CISS_MALLOC_CLASS); 2893 return; 2894 } 2895 2896 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2897 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2898 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2899 ccb->crcn.flags = CAM_FLAG_NONE; 2900 xpt_action(ccb); 2901 2902 /* scan is now in progress */ 2903 } 2904 2905 static void 2906 ciss_cam_rescan_all(struct ciss_softc *sc) 2907 { 2908 int i; 2909 2910 /* Rescan the logical buses */ 2911 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2912 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2913 /* Rescan the physical buses */ 2914 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2915 CISS_PHYSICAL_BASE; i++) 2916 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2917 } 2918 2919 static void 2920 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2921 { 2922 xpt_free_path(ccb->ccb_h.path); 2923 free(ccb, CISS_MALLOC_CLASS); 2924 } 2925 2926 /************************************************************************ 2927 * Handle requests coming from CAM 2928 */ 2929 static void 2930 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2931 { 2932 struct ciss_softc *sc; 2933 struct ccb_scsiio *csio; 2934 int bus, target; 2935 int physical; 2936 2937 sc = cam_sim_softc(sim); 2938 bus = cam_sim_bus(sim); 2939 csio = (struct ccb_scsiio *)&ccb->csio; 2940 target = csio->ccb_h.target_id; 2941 physical = CISS_IS_PHYSICAL(bus); 2942 2943 switch (ccb->ccb_h.func_code) { 2944 2945 /* perform SCSI I/O */ 2946 case XPT_SCSI_IO: 2947 if (!ciss_cam_action_io(sim, csio)) 2948 return; 2949 break; 2950 2951 /* perform geometry calculations */ 2952 case XPT_CALC_GEOMETRY: 2953 { 2954 struct ccb_calc_geometry *ccg = &ccb->ccg; 2955 struct ciss_ldrive *ld; 2956 2957 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2958 2959 ld = NULL; 2960 if (!physical) 2961 ld = &sc->ciss_logical[bus][target]; 2962 2963 /* 2964 * Use the cached geometry settings unless the fault tolerance 2965 * is invalid. 2966 */ 2967 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2968 u_int32_t secs_per_cylinder; 2969 2970 ccg->heads = 255; 2971 ccg->secs_per_track = 32; 2972 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2973 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2974 } else { 2975 ccg->heads = ld->cl_geometry.heads; 2976 ccg->secs_per_track = ld->cl_geometry.sectors; 2977 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2978 } 2979 ccb->ccb_h.status = CAM_REQ_CMP; 2980 break; 2981 } 2982 2983 /* handle path attribute inquiry */ 2984 case XPT_PATH_INQ: 2985 { 2986 struct ccb_pathinq *cpi = &ccb->cpi; 2987 2988 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2989 2990 cpi->version_num = 1; 2991 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2992 cpi->target_sprt = 0; 2993 cpi->hba_misc = 0; 2994 cpi->max_target = CISS_MAX_LOGICAL; 2995 cpi->max_lun = 0; /* 'logical drive' channel only */ 2996 cpi->initiator_id = CISS_MAX_LOGICAL; 2997 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2998 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2999 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3000 cpi->unit_number = cam_sim_unit(sim); 3001 cpi->bus_id = cam_sim_bus(sim); 3002 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3003 cpi->transport = XPORT_SPI; 3004 cpi->transport_version = 2; 3005 cpi->protocol = PROTO_SCSI; 3006 cpi->protocol_version = SCSI_REV_2; 3007 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 3008 ccb->ccb_h.status = CAM_REQ_CMP; 3009 break; 3010 } 3011 3012 case XPT_GET_TRAN_SETTINGS: 3013 { 3014 struct ccb_trans_settings *cts = &ccb->cts; 3015 int bus, target; 3016 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3017 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3018 3019 bus = cam_sim_bus(sim); 3020 target = cts->ccb_h.target_id; 3021 3022 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3023 /* disconnect always OK */ 3024 cts->protocol = PROTO_SCSI; 3025 cts->protocol_version = SCSI_REV_2; 3026 cts->transport = XPORT_SPI; 3027 cts->transport_version = 2; 3028 3029 spi->valid = CTS_SPI_VALID_DISC; 3030 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3031 3032 scsi->valid = CTS_SCSI_VALID_TQ; 3033 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3034 3035 cts->ccb_h.status = CAM_REQ_CMP; 3036 break; 3037 } 3038 3039 default: /* we can't do this */ 3040 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3041 ccb->ccb_h.status = CAM_REQ_INVALID; 3042 break; 3043 } 3044 3045 xpt_done(ccb); 3046 } 3047 3048 /************************************************************************ 3049 * Handle a CAM SCSI I/O request. 3050 */ 3051 static int 3052 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3053 { 3054 struct ciss_softc *sc; 3055 int bus, target; 3056 struct ciss_request *cr; 3057 struct ciss_command *cc; 3058 int error; 3059 3060 sc = cam_sim_softc(sim); 3061 bus = cam_sim_bus(sim); 3062 target = csio->ccb_h.target_id; 3063 3064 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3065 3066 /* check that the CDB pointer is not to a physical address */ 3067 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3068 debug(3, " CDB pointer is to physical address"); 3069 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3070 } 3071 3072 /* if there is data transfer, it must be to/from a virtual address */ 3073 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3074 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3075 debug(3, " data pointer is to physical address"); 3076 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3077 } 3078 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3079 debug(3, " data has premature s/g setup"); 3080 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3081 } 3082 } 3083 3084 /* abandon aborted ccbs or those that have failed validation */ 3085 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3086 debug(3, "abandoning CCB due to abort/validation failure"); 3087 return(EINVAL); 3088 } 3089 3090 /* handle emulation of some SCSI commands ourself */ 3091 if (ciss_cam_emulate(sc, csio)) 3092 return(0); 3093 3094 /* 3095 * Get a request to manage this command. If we can't, return the 3096 * ccb, freeze the queue and flag so that we unfreeze it when a 3097 * request completes. 3098 */ 3099 if ((error = ciss_get_request(sc, &cr)) != 0) { 3100 xpt_freeze_simq(sim, 1); 3101 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3102 return(error); 3103 } 3104 3105 /* 3106 * Build the command. 3107 */ 3108 cc = cr->cr_cc; 3109 cr->cr_data = csio->data_ptr; 3110 cr->cr_length = csio->dxfer_len; 3111 cr->cr_complete = ciss_cam_complete; 3112 cr->cr_private = csio; 3113 3114 /* 3115 * Target the right logical volume. 3116 */ 3117 if (CISS_IS_PHYSICAL(bus)) 3118 cc->header.address = 3119 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3120 else 3121 cc->header.address = 3122 sc->ciss_logical[bus][target].cl_address; 3123 cc->cdb.cdb_length = csio->cdb_len; 3124 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3125 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3126 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3127 cr->cr_flags = CISS_REQ_DATAOUT; 3128 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3129 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3130 cr->cr_flags = CISS_REQ_DATAIN; 3131 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3132 } else { 3133 cr->cr_flags = 0; 3134 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3135 } 3136 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3137 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3138 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3139 } else { 3140 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3141 } 3142 3143 /* 3144 * Submit the request to the adapter. 3145 * 3146 * Note that this may fail if we're unable to map the request (and 3147 * if we ever learn a transport layer other than simple, may fail 3148 * if the adapter rejects the command). 3149 */ 3150 if ((error = ciss_start(cr)) != 0) { 3151 xpt_freeze_simq(sim, 1); 3152 if (error == EINPROGRESS) { 3153 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3154 error = 0; 3155 } else { 3156 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3157 ciss_release_request(cr); 3158 } 3159 return(error); 3160 } 3161 3162 return(0); 3163 } 3164 3165 /************************************************************************ 3166 * Emulate SCSI commands the adapter doesn't handle as we might like. 3167 */ 3168 static int 3169 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3170 { 3171 int bus, target; 3172 u_int8_t opcode; 3173 3174 target = csio->ccb_h.target_id; 3175 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3176 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3177 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3178 3179 if (CISS_IS_PHYSICAL(bus)) { 3180 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3181 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3182 xpt_done((union ccb *)csio); 3183 return(1); 3184 } else 3185 return(0); 3186 } 3187 3188 /* 3189 * Handle requests for volumes that don't exist or are not online. 3190 * A selection timeout is slightly better than an illegal request. 3191 * Other errors might be better. 3192 */ 3193 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3194 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3195 xpt_done((union ccb *)csio); 3196 return(1); 3197 } 3198 3199 /* if we have to fake Synchronise Cache */ 3200 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3201 /* 3202 * If this is a Synchronise Cache command, typically issued when 3203 * a device is closed, flush the adapter and complete now. 3204 */ 3205 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3206 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3207 ciss_flush_adapter(sc); 3208 csio->ccb_h.status = CAM_REQ_CMP; 3209 xpt_done((union ccb *)csio); 3210 return(1); 3211 } 3212 } 3213 3214 return(0); 3215 } 3216 3217 /************************************************************************ 3218 * Check for possibly-completed commands. 3219 */ 3220 static void 3221 ciss_cam_poll(struct cam_sim *sim) 3222 { 3223 cr_qhead_t qh; 3224 struct ciss_softc *sc = cam_sim_softc(sim); 3225 3226 debug_called(2); 3227 3228 STAILQ_INIT(&qh); 3229 if (sc->ciss_perf) 3230 ciss_perf_done(sc, &qh); 3231 else 3232 ciss_done(sc, &qh); 3233 ciss_complete(sc, &qh); 3234 } 3235 3236 /************************************************************************ 3237 * Handle completion of a command - pass results back through the CCB 3238 */ 3239 static void 3240 ciss_cam_complete(struct ciss_request *cr) 3241 { 3242 struct ciss_softc *sc; 3243 struct ciss_command *cc; 3244 struct ciss_error_info *ce; 3245 struct ccb_scsiio *csio; 3246 int scsi_status; 3247 int command_status; 3248 3249 debug_called(2); 3250 3251 sc = cr->cr_sc; 3252 cc = cr->cr_cc; 3253 ce = (struct ciss_error_info *)&(cc->sg[0]); 3254 csio = (struct ccb_scsiio *)cr->cr_private; 3255 3256 /* 3257 * Extract status values from request. 3258 */ 3259 ciss_report_request(cr, &command_status, &scsi_status); 3260 csio->scsi_status = scsi_status; 3261 3262 /* 3263 * Handle specific SCSI status values. 3264 */ 3265 switch(scsi_status) { 3266 /* no status due to adapter error */ 3267 case -1: 3268 debug(0, "adapter error"); 3269 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3270 break; 3271 3272 /* no status due to command completed OK */ 3273 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3274 debug(2, "SCSI_STATUS_OK"); 3275 csio->ccb_h.status = CAM_REQ_CMP; 3276 break; 3277 3278 /* check condition, sense data included */ 3279 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3280 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3281 ce->sense_length, ce->residual_count); 3282 bzero(&csio->sense_data, SSD_FULL_SIZE); 3283 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3284 csio->sense_len = ce->sense_length; 3285 csio->resid = ce->residual_count; 3286 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3287 #ifdef CISS_DEBUG 3288 { 3289 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3290 debug(0, "sense key %x", sns->flags & SSD_KEY); 3291 } 3292 #endif 3293 break; 3294 3295 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3296 debug(0, "SCSI_STATUS_BUSY"); 3297 csio->ccb_h.status = CAM_SCSI_BUSY; 3298 break; 3299 3300 default: 3301 debug(0, "unknown status 0x%x", csio->scsi_status); 3302 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3303 break; 3304 } 3305 3306 /* handle post-command fixup */ 3307 ciss_cam_complete_fixup(sc, csio); 3308 3309 /* tell CAM we're ready for more commands */ 3310 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3311 3312 ciss_release_request(cr); 3313 xpt_done((union ccb *)csio); 3314 } 3315 3316 /******************************************************************************** 3317 * Fix up the result of some commands here. 3318 */ 3319 static void 3320 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3321 { 3322 struct scsi_inquiry_data *inq; 3323 struct ciss_ldrive *cl; 3324 int bus, target; 3325 3326 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3327 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3328 3329 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3330 target = csio->ccb_h.target_id; 3331 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3332 3333 /* 3334 * Don't let hard drives be seen by the DA driver. They will still be 3335 * attached by the PASS driver. 3336 */ 3337 if (CISS_IS_PHYSICAL(bus)) { 3338 if (SID_TYPE(inq) == T_DIRECT) 3339 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3340 return; 3341 } 3342 3343 cl = &sc->ciss_logical[bus][target]; 3344 3345 padstr(inq->vendor, "COMPAQ", 8); 3346 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3347 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3348 } 3349 } 3350 3351 3352 /******************************************************************************** 3353 * Find a peripheral attached at (target) 3354 */ 3355 static struct cam_periph * 3356 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3357 { 3358 struct cam_periph *periph; 3359 struct cam_path *path; 3360 int status; 3361 3362 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3363 target, 0); 3364 if (status == CAM_REQ_CMP) { 3365 periph = cam_periph_find(path, NULL); 3366 xpt_free_path(path); 3367 } else { 3368 periph = NULL; 3369 } 3370 return(periph); 3371 } 3372 3373 /******************************************************************************** 3374 * Name the device at (target) 3375 * 3376 * XXX is this strictly correct? 3377 */ 3378 static int 3379 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3380 { 3381 struct cam_periph *periph; 3382 3383 if (CISS_IS_PHYSICAL(bus)) 3384 return (0); 3385 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3386 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3387 periph->periph_name, periph->unit_number); 3388 return(0); 3389 } 3390 sc->ciss_logical[bus][target].cl_name[0] = 0; 3391 return(ENOENT); 3392 } 3393 3394 /************************************************************************ 3395 * Periodic status monitoring. 3396 */ 3397 static void 3398 ciss_periodic(void *arg) 3399 { 3400 struct ciss_softc *sc; 3401 struct ciss_request *cr = NULL; 3402 struct ciss_command *cc = NULL; 3403 int error = 0; 3404 3405 debug_called(1); 3406 3407 sc = (struct ciss_softc *)arg; 3408 3409 /* 3410 * Check the adapter heartbeat. 3411 */ 3412 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3413 sc->ciss_heart_attack++; 3414 debug(0, "adapter heart attack in progress 0x%x/%d", 3415 sc->ciss_heartbeat, sc->ciss_heart_attack); 3416 if (sc->ciss_heart_attack == 3) { 3417 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3418 ciss_disable_adapter(sc); 3419 return; 3420 } 3421 } else { 3422 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3423 sc->ciss_heart_attack = 0; 3424 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3425 } 3426 3427 /* 3428 * Send the NOP message and wait for a response. 3429 */ 3430 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3431 cc = cr->cr_cc; 3432 cr->cr_complete = ciss_nop_complete; 3433 cc->cdb.cdb_length = 1; 3434 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3435 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3436 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3437 cc->cdb.timeout = 0; 3438 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3439 3440 if ((error = ciss_start(cr)) != 0) { 3441 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3442 } 3443 } 3444 3445 /* 3446 * If the notify event request has died for some reason, or has 3447 * not started yet, restart it. 3448 */ 3449 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3450 debug(0, "(re)starting Event Notify chain"); 3451 ciss_notify_event(sc); 3452 } 3453 3454 /* 3455 * Reschedule. 3456 */ 3457 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3458 } 3459 3460 static void 3461 ciss_nop_complete(struct ciss_request *cr) 3462 { 3463 struct ciss_softc *sc; 3464 static int first_time = 1; 3465 3466 sc = cr->cr_sc; 3467 if (ciss_report_request(cr, NULL, NULL) != 0) { 3468 if (first_time == 1) { 3469 first_time = 0; 3470 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3471 } 3472 } 3473 3474 ciss_release_request(cr); 3475 } 3476 3477 /************************************************************************ 3478 * Disable the adapter. 3479 * 3480 * The all requests in completed queue is failed with hardware error. 3481 * This will cause failover in a multipath configuration. 3482 */ 3483 static void 3484 ciss_disable_adapter(struct ciss_softc *sc) 3485 { 3486 cr_qhead_t qh; 3487 struct ciss_request *cr; 3488 struct ciss_command *cc; 3489 struct ciss_error_info *ce; 3490 int i; 3491 3492 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3493 pci_disable_busmaster(sc->ciss_dev); 3494 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3495 3496 for (i = 1; i < sc->ciss_max_requests; i++) { 3497 cr = &sc->ciss_request[i]; 3498 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3499 continue; 3500 3501 cc = cr->cr_cc; 3502 ce = (struct ciss_error_info *)&(cc->sg[0]); 3503 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3504 ciss_enqueue_complete(cr, &qh); 3505 } 3506 3507 for (;;) { 3508 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3509 break; 3510 3511 /* 3512 * If the request has a callback, invoke it. 3513 */ 3514 if (cr->cr_complete != NULL) { 3515 cr->cr_complete(cr); 3516 continue; 3517 } 3518 3519 /* 3520 * If someone is sleeping on this request, wake them up. 3521 */ 3522 if (cr->cr_flags & CISS_REQ_SLEEP) { 3523 cr->cr_flags &= ~CISS_REQ_SLEEP; 3524 wakeup(cr); 3525 continue; 3526 } 3527 } 3528 } 3529 3530 /************************************************************************ 3531 * Request a notification response from the adapter. 3532 * 3533 * If (cr) is NULL, this is the first request of the adapter, so 3534 * reset the adapter's message pointer and start with the oldest 3535 * message available. 3536 */ 3537 static void 3538 ciss_notify_event(struct ciss_softc *sc) 3539 { 3540 struct ciss_request *cr; 3541 struct ciss_command *cc; 3542 struct ciss_notify_cdb *cnc; 3543 int error; 3544 3545 debug_called(1); 3546 3547 cr = sc->ciss_periodic_notify; 3548 3549 /* get a request if we don't already have one */ 3550 if (cr == NULL) { 3551 if ((error = ciss_get_request(sc, &cr)) != 0) { 3552 debug(0, "can't get notify event request"); 3553 goto out; 3554 } 3555 sc->ciss_periodic_notify = cr; 3556 cr->cr_complete = ciss_notify_complete; 3557 debug(1, "acquired request %d", cr->cr_tag); 3558 } 3559 3560 /* 3561 * Get a databuffer if we don't already have one, note that the 3562 * adapter command wants a larger buffer than the actual 3563 * structure. 3564 */ 3565 if (cr->cr_data == NULL) { 3566 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3567 debug(0, "can't get notify event request buffer"); 3568 error = ENOMEM; 3569 goto out; 3570 } 3571 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3572 } 3573 3574 /* re-setup the request's command (since we never release it) XXX overkill*/ 3575 ciss_preen_command(cr); 3576 3577 /* (re)build the notify event command */ 3578 cc = cr->cr_cc; 3579 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3580 cc->header.address.physical.bus = 0; 3581 cc->header.address.physical.target = 0; 3582 3583 cc->cdb.cdb_length = sizeof(*cnc); 3584 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3585 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3586 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3587 cc->cdb.timeout = 0; /* no timeout, we hope */ 3588 3589 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3590 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3591 cnc->opcode = CISS_OPCODE_READ; 3592 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3593 cnc->timeout = 0; /* no timeout, we hope */ 3594 cnc->synchronous = 0; 3595 cnc->ordered = 0; 3596 cnc->seek_to_oldest = 0; 3597 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3598 cnc->new_only = 1; 3599 else 3600 cnc->new_only = 0; 3601 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3602 3603 /* submit the request */ 3604 error = ciss_start(cr); 3605 3606 out: 3607 if (error) { 3608 if (cr != NULL) { 3609 if (cr->cr_data != NULL) 3610 free(cr->cr_data, CISS_MALLOC_CLASS); 3611 ciss_release_request(cr); 3612 } 3613 sc->ciss_periodic_notify = NULL; 3614 debug(0, "can't submit notify event request"); 3615 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3616 } else { 3617 debug(1, "notify event submitted"); 3618 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3619 } 3620 } 3621 3622 static void 3623 ciss_notify_complete(struct ciss_request *cr) 3624 { 3625 struct ciss_command *cc; 3626 struct ciss_notify *cn; 3627 struct ciss_softc *sc; 3628 int scsi_status; 3629 int command_status; 3630 debug_called(1); 3631 3632 cc = cr->cr_cc; 3633 cn = (struct ciss_notify *)cr->cr_data; 3634 sc = cr->cr_sc; 3635 3636 /* 3637 * Report request results, decode status. 3638 */ 3639 ciss_report_request(cr, &command_status, &scsi_status); 3640 3641 /* 3642 * Abort the chain on a fatal error. 3643 * 3644 * XXX which of these are actually errors? 3645 */ 3646 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3647 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3648 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3649 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3650 ciss_name_command_status(command_status)); 3651 ciss_release_request(cr); 3652 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3653 return; 3654 } 3655 3656 /* 3657 * If the adapter gave us a text message, print it. 3658 */ 3659 if (cn->message[0] != 0) 3660 ciss_printf(sc, "*** %.80s\n", cn->message); 3661 3662 debug(0, "notify event class %d subclass %d detail %d", 3663 cn->class, cn->subclass, cn->detail); 3664 3665 /* 3666 * If the response indicates that the notifier has been aborted, 3667 * release the notifier command. 3668 */ 3669 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3670 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3671 (cn->detail == 1)) { 3672 debug(0, "notifier exiting"); 3673 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3674 ciss_release_request(cr); 3675 sc->ciss_periodic_notify = NULL; 3676 wakeup(&sc->ciss_periodic_notify); 3677 } else { 3678 /* Handle notify events in a kernel thread */ 3679 ciss_enqueue_notify(cr); 3680 sc->ciss_periodic_notify = NULL; 3681 wakeup(&sc->ciss_periodic_notify); 3682 wakeup(&sc->ciss_notify); 3683 } 3684 /* 3685 * Send a new notify event command, if we're not aborting. 3686 */ 3687 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3688 ciss_notify_event(sc); 3689 } 3690 } 3691 3692 /************************************************************************ 3693 * Abort the Notify Event chain. 3694 * 3695 * Note that we can't just abort the command in progress; we have to 3696 * explicitly issue an Abort Notify Event command in order for the 3697 * adapter to clean up correctly. 3698 * 3699 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3700 * the chain will not restart itself. 3701 */ 3702 static int 3703 ciss_notify_abort(struct ciss_softc *sc) 3704 { 3705 struct ciss_request *cr; 3706 struct ciss_command *cc; 3707 struct ciss_notify_cdb *cnc; 3708 int error, command_status, scsi_status; 3709 3710 debug_called(1); 3711 3712 cr = NULL; 3713 error = 0; 3714 3715 /* verify that there's an outstanding command */ 3716 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3717 goto out; 3718 3719 /* get a command to issue the abort with */ 3720 if ((error = ciss_get_request(sc, &cr))) 3721 goto out; 3722 3723 /* get a buffer for the result */ 3724 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3725 debug(0, "can't get notify event request buffer"); 3726 error = ENOMEM; 3727 goto out; 3728 } 3729 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3730 3731 /* build the CDB */ 3732 cc = cr->cr_cc; 3733 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3734 cc->header.address.physical.bus = 0; 3735 cc->header.address.physical.target = 0; 3736 cc->cdb.cdb_length = sizeof(*cnc); 3737 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3738 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3739 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3740 cc->cdb.timeout = 0; /* no timeout, we hope */ 3741 3742 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3743 bzero(cnc, sizeof(*cnc)); 3744 cnc->opcode = CISS_OPCODE_WRITE; 3745 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3746 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3747 3748 ciss_print_request(cr); 3749 3750 /* 3751 * Submit the request and wait for it to complete. 3752 */ 3753 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3754 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3755 goto out; 3756 } 3757 3758 /* 3759 * Check response. 3760 */ 3761 ciss_report_request(cr, &command_status, &scsi_status); 3762 switch(command_status) { 3763 case CISS_CMD_STATUS_SUCCESS: 3764 break; 3765 case CISS_CMD_STATUS_INVALID_COMMAND: 3766 /* 3767 * Some older adapters don't support the CISS version of this 3768 * command. Fall back to using the BMIC version. 3769 */ 3770 error = ciss_notify_abort_bmic(sc); 3771 if (error != 0) 3772 goto out; 3773 break; 3774 3775 case CISS_CMD_STATUS_TARGET_STATUS: 3776 /* 3777 * This can happen if the adapter thinks there wasn't an outstanding 3778 * Notify Event command but we did. We clean up here. 3779 */ 3780 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3781 if (sc->ciss_periodic_notify != NULL) 3782 ciss_release_request(sc->ciss_periodic_notify); 3783 error = 0; 3784 goto out; 3785 } 3786 /* FALLTHROUGH */ 3787 3788 default: 3789 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3790 ciss_name_command_status(command_status)); 3791 error = EIO; 3792 goto out; 3793 } 3794 3795 /* 3796 * Sleep waiting for the notifier command to complete. Note 3797 * that if it doesn't, we may end up in a bad situation, since 3798 * the adapter may deliver it later. Also note that the adapter 3799 * requires the Notify Event command to be cancelled in order to 3800 * maintain internal bookkeeping. 3801 */ 3802 while (sc->ciss_periodic_notify != NULL) { 3803 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3804 if (error == EWOULDBLOCK) { 3805 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3806 break; 3807 } 3808 } 3809 3810 out: 3811 /* release the cancel request */ 3812 if (cr != NULL) { 3813 if (cr->cr_data != NULL) 3814 free(cr->cr_data, CISS_MALLOC_CLASS); 3815 ciss_release_request(cr); 3816 } 3817 if (error == 0) 3818 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3819 return(error); 3820 } 3821 3822 /************************************************************************ 3823 * Abort the Notify Event chain using a BMIC command. 3824 */ 3825 static int 3826 ciss_notify_abort_bmic(struct ciss_softc *sc) 3827 { 3828 struct ciss_request *cr; 3829 int error, command_status; 3830 3831 debug_called(1); 3832 3833 cr = NULL; 3834 error = 0; 3835 3836 /* verify that there's an outstanding command */ 3837 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3838 goto out; 3839 3840 /* 3841 * Build a BMIC command to cancel the Notify on Event command. 3842 * 3843 * Note that we are sending a CISS opcode here. Odd. 3844 */ 3845 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3846 NULL, 0)) != 0) 3847 goto out; 3848 3849 /* 3850 * Submit the request and wait for it to complete. 3851 */ 3852 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3853 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3854 goto out; 3855 } 3856 3857 /* 3858 * Check response. 3859 */ 3860 ciss_report_request(cr, &command_status, NULL); 3861 switch(command_status) { 3862 case CISS_CMD_STATUS_SUCCESS: 3863 break; 3864 default: 3865 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3866 ciss_name_command_status(command_status)); 3867 error = EIO; 3868 goto out; 3869 } 3870 3871 out: 3872 if (cr != NULL) 3873 ciss_release_request(cr); 3874 return(error); 3875 } 3876 3877 /************************************************************************ 3878 * Handle rescanning all the logical volumes when a notify event 3879 * causes the drives to come online or offline. 3880 */ 3881 static void 3882 ciss_notify_rescan_logical(struct ciss_softc *sc) 3883 { 3884 struct ciss_lun_report *cll; 3885 struct ciss_ldrive *ld; 3886 int i, j, ndrives; 3887 3888 /* 3889 * We must rescan all logical volumes to get the right logical 3890 * drive address. 3891 */ 3892 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3893 CISS_MAX_LOGICAL); 3894 if (cll == NULL) 3895 return; 3896 3897 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3898 3899 /* 3900 * Delete any of the drives which were destroyed by the 3901 * firmware. 3902 */ 3903 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3904 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3905 ld = &sc->ciss_logical[i][j]; 3906 3907 if (ld->cl_update == 0) 3908 continue; 3909 3910 if (ld->cl_status != CISS_LD_ONLINE) { 3911 ciss_cam_rescan_target(sc, i, j); 3912 ld->cl_update = 0; 3913 if (ld->cl_ldrive) 3914 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3915 if (ld->cl_lstatus) 3916 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3917 3918 ld->cl_ldrive = NULL; 3919 ld->cl_lstatus = NULL; 3920 } 3921 } 3922 } 3923 3924 /* 3925 * Scan for new drives. 3926 */ 3927 for (i = 0; i < ndrives; i++) { 3928 int bus, target; 3929 3930 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3931 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3932 ld = &sc->ciss_logical[bus][target]; 3933 3934 if (ld->cl_update == 0) 3935 continue; 3936 3937 ld->cl_update = 0; 3938 ld->cl_address = cll->lun[i]; 3939 ld->cl_controller = &sc->ciss_controllers[bus]; 3940 if (ciss_identify_logical(sc, ld) == 0) { 3941 ciss_cam_rescan_target(sc, bus, target); 3942 } 3943 } 3944 free(cll, CISS_MALLOC_CLASS); 3945 } 3946 3947 /************************************************************************ 3948 * Handle a notify event relating to the status of a logical drive. 3949 * 3950 * XXX need to be able to defer some of these to properly handle 3951 * calling the "ID Physical drive" command, unless the 'extended' 3952 * drive IDs are always in BIG_MAP format. 3953 */ 3954 static void 3955 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3956 { 3957 struct ciss_ldrive *ld; 3958 int ostatus, bus, target; 3959 3960 debug_called(2); 3961 3962 bus = cn->device.physical.bus; 3963 target = cn->data.logical_status.logical_drive; 3964 ld = &sc->ciss_logical[bus][target]; 3965 3966 switch (cn->subclass) { 3967 case CISS_NOTIFY_LOGICAL_STATUS: 3968 switch (cn->detail) { 3969 case 0: 3970 ciss_name_device(sc, bus, target); 3971 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3972 cn->data.logical_status.logical_drive, ld->cl_name, 3973 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3974 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3975 cn->data.logical_status.spare_state, 3976 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3977 3978 /* 3979 * Update our idea of the drive's status. 3980 */ 3981 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3982 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3983 if (ld->cl_lstatus != NULL) 3984 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3985 3986 /* 3987 * Have CAM rescan the drive if its status has changed. 3988 */ 3989 if (ostatus != ld->cl_status) { 3990 ld->cl_update = 1; 3991 ciss_notify_rescan_logical(sc); 3992 } 3993 3994 break; 3995 3996 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3997 ciss_name_device(sc, bus, target); 3998 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3999 cn->data.logical_status.logical_drive, ld->cl_name); 4000 ciss_accept_media(sc, ld); 4001 4002 ld->cl_update = 1; 4003 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4004 ciss_notify_rescan_logical(sc); 4005 break; 4006 4007 case 2: 4008 case 3: 4009 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4010 cn->data.rebuild_aborted.logical_drive, 4011 ld->cl_name, 4012 (cn->detail == 2) ? "read" : "write"); 4013 break; 4014 } 4015 break; 4016 4017 case CISS_NOTIFY_LOGICAL_ERROR: 4018 if (cn->detail == 0) { 4019 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4020 cn->data.io_error.logical_drive, 4021 ld->cl_name, 4022 cn->data.io_error.failure_bus, 4023 cn->data.io_error.failure_drive); 4024 /* XXX should we take the drive down at this point, or will we be told? */ 4025 } 4026 break; 4027 4028 case CISS_NOTIFY_LOGICAL_SURFACE: 4029 if (cn->detail == 0) 4030 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4031 cn->data.consistency_completed.logical_drive, 4032 ld->cl_name); 4033 break; 4034 } 4035 } 4036 4037 /************************************************************************ 4038 * Handle a notify event relating to the status of a physical drive. 4039 */ 4040 static void 4041 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4042 { 4043 } 4044 4045 /************************************************************************ 4046 * Handle a notify event relating to the status of a physical drive. 4047 */ 4048 static void 4049 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4050 { 4051 struct ciss_lun_report *cll = NULL; 4052 int bus, target; 4053 4054 switch (cn->subclass) { 4055 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4056 case CISS_NOTIFY_HOTPLUG_NONDISK: 4057 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4058 target = 4059 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4060 4061 if (cn->detail == 0) { 4062 /* 4063 * Mark the device offline so that it'll start producing selection 4064 * timeouts to the upper layer. 4065 */ 4066 if ((bus >= 0) && (target >= 0)) 4067 sc->ciss_physical[bus][target].cp_online = 0; 4068 } else { 4069 /* 4070 * Rescan the physical lun list for new items 4071 */ 4072 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4073 CISS_MAX_PHYSICAL); 4074 if (cll == NULL) { 4075 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4076 break; 4077 } 4078 ciss_filter_physical(sc, cll); 4079 } 4080 break; 4081 4082 default: 4083 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4084 return; 4085 } 4086 4087 if (cll != NULL) 4088 free(cll, CISS_MALLOC_CLASS); 4089 } 4090 4091 /************************************************************************ 4092 * Handle deferred processing of notify events. Notify events may need 4093 * sleep which is unsafe during an interrupt. 4094 */ 4095 static void 4096 ciss_notify_thread(void *arg) 4097 { 4098 struct ciss_softc *sc; 4099 struct ciss_request *cr; 4100 struct ciss_notify *cn; 4101 4102 sc = (struct ciss_softc *)arg; 4103 #if __FreeBSD_version >= 500000 4104 mtx_lock(&sc->ciss_mtx); 4105 #endif 4106 4107 for (;;) { 4108 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4109 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4110 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4111 } 4112 4113 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4114 break; 4115 4116 cr = ciss_dequeue_notify(sc); 4117 4118 if (cr == NULL) 4119 panic("cr null"); 4120 cn = (struct ciss_notify *)cr->cr_data; 4121 4122 switch (cn->class) { 4123 case CISS_NOTIFY_HOTPLUG: 4124 ciss_notify_hotplug(sc, cn); 4125 break; 4126 case CISS_NOTIFY_LOGICAL: 4127 ciss_notify_logical(sc, cn); 4128 break; 4129 case CISS_NOTIFY_PHYSICAL: 4130 ciss_notify_physical(sc, cn); 4131 break; 4132 } 4133 4134 ciss_release_request(cr); 4135 4136 } 4137 sc->ciss_notify_thread = NULL; 4138 wakeup(&sc->ciss_notify_thread); 4139 4140 #if __FreeBSD_version >= 500000 4141 mtx_unlock(&sc->ciss_mtx); 4142 #endif 4143 kproc_exit(0); 4144 } 4145 4146 /************************************************************************ 4147 * Start the notification kernel thread. 4148 */ 4149 static void 4150 ciss_spawn_notify_thread(struct ciss_softc *sc) 4151 { 4152 4153 #if __FreeBSD_version > 500005 4154 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4155 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4156 device_get_unit(sc->ciss_dev))) 4157 #else 4158 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4159 &sc->ciss_notify_thread, "ciss_notify%d", 4160 device_get_unit(sc->ciss_dev))) 4161 #endif 4162 panic("Could not create notify thread\n"); 4163 } 4164 4165 /************************************************************************ 4166 * Kill the notification kernel thread. 4167 */ 4168 static void 4169 ciss_kill_notify_thread(struct ciss_softc *sc) 4170 { 4171 4172 if (sc->ciss_notify_thread == NULL) 4173 return; 4174 4175 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4176 wakeup(&sc->ciss_notify); 4177 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4178 } 4179 4180 /************************************************************************ 4181 * Print a request. 4182 */ 4183 static void 4184 ciss_print_request(struct ciss_request *cr) 4185 { 4186 struct ciss_softc *sc; 4187 struct ciss_command *cc; 4188 int i; 4189 4190 sc = cr->cr_sc; 4191 cc = cr->cr_cc; 4192 4193 ciss_printf(sc, "REQUEST @ %p\n", cr); 4194 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4195 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4196 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4197 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4198 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4199 switch(cc->header.address.mode.mode) { 4200 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4201 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4202 ciss_printf(sc, " physical bus %d target %d\n", 4203 cc->header.address.physical.bus, cc->header.address.physical.target); 4204 break; 4205 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4206 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4207 break; 4208 } 4209 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4210 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4211 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4212 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4213 cc->cdb.cdb_length, 4214 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4215 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4216 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4217 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4218 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4219 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4220 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4221 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4222 4223 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4224 /* XXX print error info */ 4225 } else { 4226 /* since we don't use chained s/g, don't support it here */ 4227 for (i = 0; i < cc->header.sg_in_list; i++) { 4228 if ((i % 4) == 0) 4229 ciss_printf(sc, " "); 4230 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4231 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4232 printf("\n"); 4233 } 4234 } 4235 } 4236 4237 /************************************************************************ 4238 * Print information about the status of a logical drive. 4239 */ 4240 static void 4241 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4242 { 4243 int bus, target, i; 4244 4245 if (ld->cl_lstatus == NULL) { 4246 printf("does not exist\n"); 4247 return; 4248 } 4249 4250 /* print drive status */ 4251 switch(ld->cl_lstatus->status) { 4252 case CISS_LSTATUS_OK: 4253 printf("online\n"); 4254 break; 4255 case CISS_LSTATUS_INTERIM_RECOVERY: 4256 printf("in interim recovery mode\n"); 4257 break; 4258 case CISS_LSTATUS_READY_RECOVERY: 4259 printf("ready to begin recovery\n"); 4260 break; 4261 case CISS_LSTATUS_RECOVERING: 4262 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4263 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4264 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4265 bus, target, ld->cl_lstatus->blocks_to_recover); 4266 break; 4267 case CISS_LSTATUS_EXPANDING: 4268 printf("being expanded, %u blocks remaining\n", 4269 ld->cl_lstatus->blocks_to_recover); 4270 break; 4271 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4272 printf("queued for expansion\n"); 4273 break; 4274 case CISS_LSTATUS_FAILED: 4275 printf("queued for expansion\n"); 4276 break; 4277 case CISS_LSTATUS_WRONG_PDRIVE: 4278 printf("wrong physical drive inserted\n"); 4279 break; 4280 case CISS_LSTATUS_MISSING_PDRIVE: 4281 printf("missing a needed physical drive\n"); 4282 break; 4283 case CISS_LSTATUS_BECOMING_READY: 4284 printf("becoming ready\n"); 4285 break; 4286 } 4287 4288 /* print failed physical drives */ 4289 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4290 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4291 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4292 if (bus == -1) 4293 continue; 4294 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4295 ld->cl_lstatus->drive_failure_map[i]); 4296 } 4297 } 4298 4299 #ifdef CISS_DEBUG 4300 /************************************************************************ 4301 * Print information about the controller/driver. 4302 */ 4303 static void 4304 ciss_print_adapter(struct ciss_softc *sc) 4305 { 4306 int i, j; 4307 4308 ciss_printf(sc, "ADAPTER:\n"); 4309 for (i = 0; i < CISSQ_COUNT; i++) { 4310 ciss_printf(sc, "%s %d/%d\n", 4311 i == 0 ? "free" : 4312 i == 1 ? "busy" : "complete", 4313 sc->ciss_qstat[i].q_length, 4314 sc->ciss_qstat[i].q_max); 4315 } 4316 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4317 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4318 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4319 4320 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4321 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4322 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4323 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4324 } 4325 } 4326 4327 /* XXX Should physical drives be printed out here? */ 4328 4329 for (i = 1; i < sc->ciss_max_requests; i++) 4330 ciss_print_request(sc->ciss_request + i); 4331 } 4332 4333 /* DDB hook */ 4334 static void 4335 ciss_print0(void) 4336 { 4337 struct ciss_softc *sc; 4338 4339 sc = devclass_get_softc(devclass_find("ciss"), 0); 4340 if (sc == NULL) { 4341 printf("no ciss controllers\n"); 4342 } else { 4343 ciss_print_adapter(sc); 4344 } 4345 } 4346 #endif 4347 4348 /************************************************************************ 4349 * Return a name for a logical drive status value. 4350 */ 4351 static const char * 4352 ciss_name_ldrive_status(int status) 4353 { 4354 switch (status) { 4355 case CISS_LSTATUS_OK: 4356 return("OK"); 4357 case CISS_LSTATUS_FAILED: 4358 return("failed"); 4359 case CISS_LSTATUS_NOT_CONFIGURED: 4360 return("not configured"); 4361 case CISS_LSTATUS_INTERIM_RECOVERY: 4362 return("interim recovery"); 4363 case CISS_LSTATUS_READY_RECOVERY: 4364 return("ready for recovery"); 4365 case CISS_LSTATUS_RECOVERING: 4366 return("recovering"); 4367 case CISS_LSTATUS_WRONG_PDRIVE: 4368 return("wrong physical drive inserted"); 4369 case CISS_LSTATUS_MISSING_PDRIVE: 4370 return("missing physical drive"); 4371 case CISS_LSTATUS_EXPANDING: 4372 return("expanding"); 4373 case CISS_LSTATUS_BECOMING_READY: 4374 return("becoming ready"); 4375 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4376 return("queued for expansion"); 4377 } 4378 return("unknown status"); 4379 } 4380 4381 /************************************************************************ 4382 * Return an online/offline/nonexistent value for a logical drive 4383 * status value. 4384 */ 4385 static int 4386 ciss_decode_ldrive_status(int status) 4387 { 4388 switch(status) { 4389 case CISS_LSTATUS_NOT_CONFIGURED: 4390 return(CISS_LD_NONEXISTENT); 4391 4392 case CISS_LSTATUS_OK: 4393 case CISS_LSTATUS_INTERIM_RECOVERY: 4394 case CISS_LSTATUS_READY_RECOVERY: 4395 case CISS_LSTATUS_RECOVERING: 4396 case CISS_LSTATUS_EXPANDING: 4397 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4398 return(CISS_LD_ONLINE); 4399 4400 case CISS_LSTATUS_FAILED: 4401 case CISS_LSTATUS_WRONG_PDRIVE: 4402 case CISS_LSTATUS_MISSING_PDRIVE: 4403 case CISS_LSTATUS_BECOMING_READY: 4404 default: 4405 return(CISS_LD_OFFLINE); 4406 } 4407 } 4408 4409 4410 /************************************************************************ 4411 * Return a name for a logical drive's organisation. 4412 */ 4413 static const char * 4414 ciss_name_ldrive_org(int org) 4415 { 4416 switch(org) { 4417 case CISS_LDRIVE_RAID0: 4418 return("RAID 0"); 4419 case CISS_LDRIVE_RAID1: 4420 return("RAID 1"); 4421 case CISS_LDRIVE_RAID4: 4422 return("RAID 4"); 4423 case CISS_LDRIVE_RAID5: 4424 return("RAID 5"); 4425 case CISS_LDRIVE_RAID51: 4426 return("RAID 5+1"); 4427 case CISS_LDRIVE_RAIDADG: 4428 return("RAID ADG"); 4429 } 4430 return("unkown"); 4431 } 4432 4433 /************************************************************************ 4434 * Return a name for a command status value. 4435 */ 4436 static const char * 4437 ciss_name_command_status(int status) 4438 { 4439 switch(status) { 4440 case CISS_CMD_STATUS_SUCCESS: 4441 return("success"); 4442 case CISS_CMD_STATUS_TARGET_STATUS: 4443 return("target status"); 4444 case CISS_CMD_STATUS_DATA_UNDERRUN: 4445 return("data underrun"); 4446 case CISS_CMD_STATUS_DATA_OVERRUN: 4447 return("data overrun"); 4448 case CISS_CMD_STATUS_INVALID_COMMAND: 4449 return("invalid command"); 4450 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4451 return("protocol error"); 4452 case CISS_CMD_STATUS_HARDWARE_ERROR: 4453 return("hardware error"); 4454 case CISS_CMD_STATUS_CONNECTION_LOST: 4455 return("connection lost"); 4456 case CISS_CMD_STATUS_ABORTED: 4457 return("aborted"); 4458 case CISS_CMD_STATUS_ABORT_FAILED: 4459 return("abort failed"); 4460 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4461 return("unsolicited abort"); 4462 case CISS_CMD_STATUS_TIMEOUT: 4463 return("timeout"); 4464 case CISS_CMD_STATUS_UNABORTABLE: 4465 return("unabortable"); 4466 } 4467 return("unknown status"); 4468 } 4469 4470 /************************************************************************ 4471 * Handle an open on the control device. 4472 */ 4473 static int 4474 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4475 { 4476 struct ciss_softc *sc; 4477 4478 debug_called(1); 4479 4480 sc = (struct ciss_softc *)dev->si_drv1; 4481 4482 /* we might want to veto if someone already has us open */ 4483 4484 mtx_lock(&sc->ciss_mtx); 4485 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4486 mtx_unlock(&sc->ciss_mtx); 4487 return(0); 4488 } 4489 4490 /************************************************************************ 4491 * Handle the last close on the control device. 4492 */ 4493 static int 4494 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4495 { 4496 struct ciss_softc *sc; 4497 4498 debug_called(1); 4499 4500 sc = (struct ciss_softc *)dev->si_drv1; 4501 4502 mtx_lock(&sc->ciss_mtx); 4503 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4504 mtx_unlock(&sc->ciss_mtx); 4505 return (0); 4506 } 4507 4508 /******************************************************************************** 4509 * Handle adapter-specific control operations. 4510 * 4511 * Note that the API here is compatible with the Linux driver, in order to 4512 * simplify the porting of Compaq's userland tools. 4513 */ 4514 static int 4515 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4516 { 4517 struct ciss_softc *sc; 4518 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4519 #ifdef __amd64__ 4520 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4521 IOCTL_Command_struct ioc_swab; 4522 #endif 4523 int error; 4524 4525 debug_called(1); 4526 4527 sc = (struct ciss_softc *)dev->si_drv1; 4528 error = 0; 4529 mtx_lock(&sc->ciss_mtx); 4530 4531 switch(cmd) { 4532 case CCISS_GETQSTATS: 4533 { 4534 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4535 4536 switch (cr->cs_item) { 4537 case CISSQ_FREE: 4538 case CISSQ_NOTIFY: 4539 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4540 sizeof(struct ciss_qstat)); 4541 break; 4542 default: 4543 error = ENOIOCTL; 4544 break; 4545 } 4546 4547 break; 4548 } 4549 4550 case CCISS_GETPCIINFO: 4551 { 4552 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4553 4554 pis->bus = pci_get_bus(sc->ciss_dev); 4555 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4556 pis->board_id = pci_get_devid(sc->ciss_dev); 4557 4558 break; 4559 } 4560 4561 case CCISS_GETINTINFO: 4562 { 4563 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4564 4565 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4566 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4567 4568 break; 4569 } 4570 4571 case CCISS_SETINTINFO: 4572 { 4573 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4574 4575 if ((cis->delay == 0) && (cis->count == 0)) { 4576 error = EINVAL; 4577 break; 4578 } 4579 4580 /* 4581 * XXX apparently this is only safe if the controller is idle, 4582 * we should suspend it before doing this. 4583 */ 4584 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4585 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4586 4587 if (ciss_update_config(sc)) 4588 error = EIO; 4589 4590 /* XXX resume the controller here */ 4591 break; 4592 } 4593 4594 case CCISS_GETNODENAME: 4595 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4596 sizeof(NodeName_type)); 4597 break; 4598 4599 case CCISS_SETNODENAME: 4600 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4601 sizeof(NodeName_type)); 4602 if (ciss_update_config(sc)) 4603 error = EIO; 4604 break; 4605 4606 case CCISS_GETHEARTBEAT: 4607 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4608 break; 4609 4610 case CCISS_GETBUSTYPES: 4611 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4612 break; 4613 4614 case CCISS_GETFIRMVER: 4615 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4616 sizeof(FirmwareVer_type)); 4617 break; 4618 4619 case CCISS_GETDRIVERVER: 4620 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4621 break; 4622 4623 case CCISS_REVALIDVOLS: 4624 /* 4625 * This is a bit ugly; to do it "right" we really need 4626 * to find any disks that have changed, kick CAM off them, 4627 * then rescan only these disks. It'd be nice if they 4628 * a) told us which disk(s) they were going to play with, 4629 * and b) which ones had arrived. 8( 4630 */ 4631 break; 4632 4633 #ifdef __amd64__ 4634 case CCISS_PASSTHRU32: 4635 ioc_swab.LUN_info = ioc32->LUN_info; 4636 ioc_swab.Request = ioc32->Request; 4637 ioc_swab.error_info = ioc32->error_info; 4638 ioc_swab.buf_size = ioc32->buf_size; 4639 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4640 ioc = &ioc_swab; 4641 /* FALLTHROUGH */ 4642 #endif 4643 4644 case CCISS_PASSTHRU: 4645 error = ciss_user_command(sc, ioc); 4646 break; 4647 4648 default: 4649 debug(0, "unknown ioctl 0x%lx", cmd); 4650 4651 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4652 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4653 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4654 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4655 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4656 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4657 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4658 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4659 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4660 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4661 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4662 4663 error = ENOIOCTL; 4664 break; 4665 } 4666 4667 mtx_unlock(&sc->ciss_mtx); 4668 return(error); 4669 } 4670