1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_setup_msix(struct ciss_softc *sc); 120 static int ciss_init_perf(struct ciss_softc *sc); 121 static int ciss_wait_adapter(struct ciss_softc *sc); 122 static int ciss_flush_adapter(struct ciss_softc *sc); 123 static int ciss_init_requests(struct ciss_softc *sc); 124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126 static int ciss_identify_adapter(struct ciss_softc *sc); 127 static int ciss_init_logical(struct ciss_softc *sc); 128 static int ciss_init_physical(struct ciss_softc *sc); 129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_update_config(struct ciss_softc *sc); 133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static void ciss_init_sysctl(struct ciss_softc *sc); 135 static void ciss_soft_reset(struct ciss_softc *sc); 136 static void ciss_free(struct ciss_softc *sc); 137 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138 static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140 /* request submission/completion */ 141 static int ciss_start(struct ciss_request *cr); 142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_intr(void *arg); 145 static void ciss_perf_intr(void *arg); 146 static void ciss_perf_msi_intr(void *arg); 147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149 static int ciss_synch_request(struct ciss_request *cr, int timeout); 150 static int ciss_poll_request(struct ciss_request *cr, int timeout); 151 static int ciss_wait_request(struct ciss_request *cr, int timeout); 152 #if 0 153 static int ciss_abort_request(struct ciss_request *cr); 154 #endif 155 156 /* request queueing */ 157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158 static void ciss_preen_command(struct ciss_request *cr); 159 static void ciss_release_request(struct ciss_request *cr); 160 161 /* request helpers */ 162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166 /* DMA map/unmap */ 167 static int ciss_map_request(struct ciss_request *cr); 168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170 static void ciss_unmap_request(struct ciss_request *cr); 171 172 /* CAM interface */ 173 static int ciss_cam_init(struct ciss_softc *sc); 174 static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176 static void ciss_cam_rescan_all(struct ciss_softc *sc); 177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static void ciss_cam_poll(struct cam_sim *sim); 182 static void ciss_cam_complete(struct ciss_request *cr); 183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188 /* periodic status monitoring */ 189 static void ciss_periodic(void *arg); 190 static void ciss_nop_complete(struct ciss_request *cr); 191 static void ciss_disable_adapter(struct ciss_softc *sc); 192 static void ciss_notify_event(struct ciss_softc *sc); 193 static void ciss_notify_complete(struct ciss_request *cr); 194 static int ciss_notify_abort(struct ciss_softc *sc); 195 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200 /* debugging output */ 201 static void ciss_print_request(struct ciss_request *cr); 202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203 static const char *ciss_name_ldrive_status(int status); 204 static int ciss_decode_ldrive_status(int status); 205 static const char *ciss_name_ldrive_org(int org); 206 static const char *ciss_name_command_status(int status); 207 208 /* 209 * PCI bus interface. 210 */ 211 static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 { 0, 0 } 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 228 MODULE_DEPEND(ciss, cam, 1, 1, 1); 229 MODULE_DEPEND(ciss, pci, 1, 1, 1); 230 231 /* 232 * Control device interface. 233 */ 234 static d_open_t ciss_open; 235 static d_close_t ciss_close; 236 static d_ioctl_t ciss_ioctl; 237 238 static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245 }; 246 247 /* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251 static unsigned int ciss_expose_hidden_physical = 0; 252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254 static unsigned int ciss_nop_message_heartbeat = 0; 255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257 /* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263 static int ciss_force_transport = 0; 264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266 /* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272 static int ciss_force_interrupt = 0; 273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275 /************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282 #define CISS_BOARD_SA5 (1<<0) 283 #define CISS_BOARD_SA5B (1<<1) 284 285 static struct 286 { 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291 } ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 293 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 294 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 295 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 296 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 297 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 298 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 299 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 300 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 301 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 302 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 303 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 307 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 309 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 310 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 315 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 316 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 324 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 325 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 326 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 327 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 328 { 0, 0, 0, NULL } 329 }; 330 331 /************************************************************************ 332 * Find a match for the device in our list of known adapters. 333 */ 334 static int 335 ciss_lookup(device_t dev) 336 { 337 int i; 338 339 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 340 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 341 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 342 return(i); 343 } 344 return(-1); 345 } 346 347 /************************************************************************ 348 * Match a known CISS adapter. 349 */ 350 static int 351 ciss_probe(device_t dev) 352 { 353 int i; 354 355 i = ciss_lookup(dev); 356 if (i != -1) { 357 device_set_desc(dev, ciss_vendor_data[i].desc); 358 return(BUS_PROBE_DEFAULT); 359 } 360 return(ENOENT); 361 } 362 363 /************************************************************************ 364 * Attach the driver to this adapter. 365 */ 366 static int 367 ciss_attach(device_t dev) 368 { 369 struct ciss_softc *sc; 370 int i, error; 371 372 debug_called(1); 373 374 #ifdef CISS_DEBUG 375 /* print structure/union sizes */ 376 debug_struct(ciss_command); 377 debug_struct(ciss_header); 378 debug_union(ciss_device_address); 379 debug_struct(ciss_cdb); 380 debug_struct(ciss_report_cdb); 381 debug_struct(ciss_notify_cdb); 382 debug_struct(ciss_notify); 383 debug_struct(ciss_message_cdb); 384 debug_struct(ciss_error_info_pointer); 385 debug_struct(ciss_error_info); 386 debug_struct(ciss_sg_entry); 387 debug_struct(ciss_config_table); 388 debug_struct(ciss_bmic_cdb); 389 debug_struct(ciss_bmic_id_ldrive); 390 debug_struct(ciss_bmic_id_lstatus); 391 debug_struct(ciss_bmic_id_table); 392 debug_struct(ciss_bmic_id_pdrive); 393 debug_struct(ciss_bmic_blink_pdrive); 394 debug_struct(ciss_bmic_flush_cache); 395 debug_const(CISS_MAX_REQUESTS); 396 debug_const(CISS_MAX_LOGICAL); 397 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 398 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 399 debug_const(CISS_COMMAND_ALLOC_SIZE); 400 debug_const(CISS_COMMAND_SG_LENGTH); 401 402 debug_type(cciss_pci_info_struct); 403 debug_type(cciss_coalint_struct); 404 debug_type(cciss_coalint_struct); 405 debug_type(NodeName_type); 406 debug_type(NodeName_type); 407 debug_type(Heartbeat_type); 408 debug_type(BusTypes_type); 409 debug_type(FirmwareVer_type); 410 debug_type(DriverVer_type); 411 debug_type(IOCTL_Command_struct); 412 #endif 413 414 sc = device_get_softc(dev); 415 sc->ciss_dev = dev; 416 417 /* 418 * Work out adapter type. 419 */ 420 i = ciss_lookup(dev); 421 if (i < 0) { 422 ciss_printf(sc, "unknown adapter type\n"); 423 error = ENXIO; 424 goto out; 425 } 426 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 427 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 428 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 429 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 430 } else { 431 /* really an error on our part */ 432 ciss_printf(sc, "unable to determine hardware type\n"); 433 error = ENXIO; 434 goto out; 435 } 436 437 /* 438 * Do PCI-specific init. 439 */ 440 if ((error = ciss_init_pci(sc)) != 0) 441 goto out; 442 443 /* 444 * Initialise driver queues. 445 */ 446 ciss_initq_free(sc); 447 ciss_initq_notify(sc); 448 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 449 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 450 451 /* 452 * Initalize device sysctls. 453 */ 454 ciss_init_sysctl(sc); 455 456 /* 457 * Initialise command/request pool. 458 */ 459 if ((error = ciss_init_requests(sc)) != 0) 460 goto out; 461 462 /* 463 * Get adapter information. 464 */ 465 if ((error = ciss_identify_adapter(sc)) != 0) 466 goto out; 467 468 /* 469 * Find all the physical devices. 470 */ 471 if ((error = ciss_init_physical(sc)) != 0) 472 goto out; 473 474 /* 475 * Build our private table of logical devices. 476 */ 477 if ((error = ciss_init_logical(sc)) != 0) 478 goto out; 479 480 /* 481 * Enable interrupts so that the CAM scan can complete. 482 */ 483 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 484 485 /* 486 * Initialise the CAM interface. 487 */ 488 if ((error = ciss_cam_init(sc)) != 0) 489 goto out; 490 491 /* 492 * Start the heartbeat routine and event chain. 493 */ 494 ciss_periodic(sc); 495 496 /* 497 * Create the control device. 498 */ 499 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 500 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 501 "ciss%d", device_get_unit(sc->ciss_dev)); 502 sc->ciss_dev_t->si_drv1 = sc; 503 504 /* 505 * The adapter is running; synchronous commands can now sleep 506 * waiting for an interrupt to signal completion. 507 */ 508 sc->ciss_flags |= CISS_FLAG_RUNNING; 509 510 ciss_spawn_notify_thread(sc); 511 512 error = 0; 513 out: 514 if (error != 0) 515 ciss_free(sc); 516 return(error); 517 } 518 519 /************************************************************************ 520 * Detach the driver from this adapter. 521 */ 522 static int 523 ciss_detach(device_t dev) 524 { 525 struct ciss_softc *sc = device_get_softc(dev); 526 527 debug_called(1); 528 529 mtx_lock(&sc->ciss_mtx); 530 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 531 mtx_unlock(&sc->ciss_mtx); 532 return (EBUSY); 533 } 534 535 /* flush adapter cache */ 536 ciss_flush_adapter(sc); 537 538 /* release all resources. The mutex is released and freed here too. */ 539 ciss_free(sc); 540 541 return(0); 542 } 543 544 /************************************************************************ 545 * Prepare adapter for system shutdown. 546 */ 547 static int 548 ciss_shutdown(device_t dev) 549 { 550 struct ciss_softc *sc = device_get_softc(dev); 551 552 debug_called(1); 553 554 mtx_lock(&sc->ciss_mtx); 555 /* flush adapter cache */ 556 ciss_flush_adapter(sc); 557 558 if (sc->ciss_soft_reset) 559 ciss_soft_reset(sc); 560 mtx_unlock(&sc->ciss_mtx); 561 562 return(0); 563 } 564 565 static void 566 ciss_init_sysctl(struct ciss_softc *sc) 567 { 568 569 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 570 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 571 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 572 } 573 574 /************************************************************************ 575 * Perform PCI-specific attachment actions. 576 */ 577 static int 578 ciss_init_pci(struct ciss_softc *sc) 579 { 580 uintptr_t cbase, csize, cofs; 581 uint32_t method, supported_methods; 582 int error; 583 void *intr; 584 585 debug_called(1); 586 587 /* 588 * Allocate register window first (we need this to find the config 589 * struct). 590 */ 591 error = ENXIO; 592 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 593 if ((sc->ciss_regs_resource = 594 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 595 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 596 ciss_printf(sc, "can't allocate register window\n"); 597 return(ENXIO); 598 } 599 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 600 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 601 602 /* 603 * Find the BAR holding the config structure. If it's not the one 604 * we already mapped for registers, map it too. 605 */ 606 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 607 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 608 if ((sc->ciss_cfg_resource = 609 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 610 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 611 ciss_printf(sc, "can't allocate config window\n"); 612 return(ENXIO); 613 } 614 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 615 csize = rman_get_end(sc->ciss_cfg_resource) - 616 rman_get_start(sc->ciss_cfg_resource) + 1; 617 } else { 618 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 619 csize = rman_get_end(sc->ciss_regs_resource) - 620 rman_get_start(sc->ciss_regs_resource) + 1; 621 } 622 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 623 624 /* 625 * Use the base/size/offset values we just calculated to 626 * sanity-check the config structure. If it's OK, point to it. 627 */ 628 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 629 ciss_printf(sc, "config table outside window\n"); 630 return(ENXIO); 631 } 632 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 633 debug(1, "config struct at %p", sc->ciss_cfg); 634 635 /* 636 * Calculate the number of request structures/commands we are 637 * going to provide for this adapter. 638 */ 639 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 640 641 /* 642 * Validate the config structure. If we supported other transport 643 * methods, we could select amongst them at this point in time. 644 */ 645 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 646 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 647 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 648 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 649 return(ENXIO); 650 } 651 652 /* 653 * Select the mode of operation, prefer Performant. 654 */ 655 if (!(sc->ciss_cfg->supported_methods & 656 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 657 ciss_printf(sc, "No supported transport layers: 0x%x\n", 658 sc->ciss_cfg->supported_methods); 659 return(ENXIO); 660 } 661 662 switch (ciss_force_transport) { 663 case 1: 664 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 665 break; 666 case 2: 667 supported_methods = CISS_TRANSPORT_METHOD_PERF; 668 break; 669 default: 670 supported_methods = sc->ciss_cfg->supported_methods; 671 break; 672 } 673 674 setup: 675 if (supported_methods & CISS_TRANSPORT_METHOD_PERF) { 676 method = CISS_TRANSPORT_METHOD_PERF; 677 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 678 sc->ciss_cfg->transport_offset); 679 if (ciss_init_perf(sc)) { 680 supported_methods &= ~method; 681 goto setup; 682 } 683 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 684 method = CISS_TRANSPORT_METHOD_SIMPLE; 685 } else { 686 ciss_printf(sc, "No supported transport methods: 0x%x\n", 687 sc->ciss_cfg->supported_methods); 688 return(ENXIO); 689 } 690 691 /* 692 * Tell it we're using the low 4GB of RAM. Set the default interrupt 693 * coalescing options. 694 */ 695 sc->ciss_cfg->requested_method = method; 696 sc->ciss_cfg->command_physlimit = 0; 697 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 698 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 699 700 #ifdef __i386__ 701 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 702 #endif 703 704 if (ciss_update_config(sc)) { 705 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 706 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 707 return(ENXIO); 708 } 709 if ((sc->ciss_cfg->active_method & method) == 0) { 710 supported_methods &= ~method; 711 if (supported_methods == 0) { 712 ciss_printf(sc, "adapter refuses to go into available transports " 713 "mode (0x%x, 0x%x)\n", supported_methods, 714 sc->ciss_cfg->active_method); 715 return(ENXIO); 716 } else 717 goto setup; 718 } 719 720 /* 721 * Wait for the adapter to come ready. 722 */ 723 if ((error = ciss_wait_adapter(sc)) != 0) 724 return(error); 725 726 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 727 * interrupts have a rid of 0, this will be overridden if MSIX is used. 728 */ 729 sc->ciss_irq_rid[0] = 0; 730 if (method == CISS_TRANSPORT_METHOD_PERF) { 731 ciss_printf(sc, "PERFORMANT Transport\n"); 732 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) 733 intr = ciss_perf_msi_intr; 734 else 735 intr = ciss_perf_intr; 736 } else { 737 ciss_printf(sc, "SIMPLE Transport\n"); 738 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 739 if (ciss_force_interrupt == 2) 740 /* If this fails, we automatically revert to INTx */ 741 ciss_setup_msix(sc); 742 sc->ciss_perf = NULL; 743 intr = ciss_intr; 744 } 745 746 /* 747 * Turn off interrupts before we go routing anything. 748 */ 749 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 750 751 /* 752 * Allocate and set up our interrupt. 753 */ 754 if ((sc->ciss_irq_resource = 755 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 756 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 757 ciss_printf(sc, "can't allocate interrupt\n"); 758 return(ENXIO); 759 } 760 761 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 762 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 763 &sc->ciss_intr)) { 764 ciss_printf(sc, "can't set up interrupt\n"); 765 return(ENXIO); 766 } 767 768 /* 769 * Allocate the parent bus DMA tag appropriate for our PCI 770 * interface. 771 * 772 * Note that "simple" adapters can only address within a 32-bit 773 * span. 774 */ 775 if (bus_dma_tag_create(NULL, /* parent */ 776 1, 0, /* alignment, boundary */ 777 BUS_SPACE_MAXADDR, /* lowaddr */ 778 BUS_SPACE_MAXADDR, /* highaddr */ 779 NULL, NULL, /* filter, filterarg */ 780 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 781 CISS_COMMAND_SG_LENGTH, /* nsegments */ 782 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 783 0, /* flags */ 784 NULL, NULL, /* lockfunc, lockarg */ 785 &sc->ciss_parent_dmat)) { 786 ciss_printf(sc, "can't allocate parent DMA tag\n"); 787 return(ENOMEM); 788 } 789 790 /* 791 * Create DMA tag for mapping buffers into adapter-addressable 792 * space. 793 */ 794 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 795 1, 0, /* alignment, boundary */ 796 BUS_SPACE_MAXADDR, /* lowaddr */ 797 BUS_SPACE_MAXADDR, /* highaddr */ 798 NULL, NULL, /* filter, filterarg */ 799 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 800 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 801 BUS_DMA_ALLOCNOW, /* flags */ 802 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 803 &sc->ciss_buffer_dmat)) { 804 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 805 return(ENOMEM); 806 } 807 return(0); 808 } 809 810 /************************************************************************ 811 * Setup MSI/MSIX operation (Performant only) 812 * Four interrupts are available, but we only use 1 right now. 813 */ 814 static int 815 ciss_setup_msix(struct ciss_softc *sc) 816 { 817 uint32_t id; 818 int val, i; 819 820 /* Weed out devices that don't actually support MSI */ 821 id = (pci_get_subvendor(sc->ciss_dev) << 16) | 822 pci_get_subdevice(sc->ciss_dev); 823 if ((id == 0x0e114070) || (id == 0x0e114080) || (id == 0x0e114082) || 824 (id == 0x0e114083)) 825 return (EINVAL); 826 827 val = pci_msix_count(sc->ciss_dev); 828 if ((val != CISS_MSI_COUNT) || (pci_alloc_msix(sc->ciss_dev, &val) != 0)) 829 return (EINVAL); 830 831 sc->ciss_msi = val; 832 ciss_printf(sc, "Using MSIX interrupt\n"); 833 834 for (i = 0; i < CISS_MSI_COUNT; i++) 835 sc->ciss_irq_rid[i] = i + 1; 836 837 return (0); 838 839 } 840 841 /************************************************************************ 842 * Setup the Performant structures. 843 */ 844 static int 845 ciss_init_perf(struct ciss_softc *sc) 846 { 847 struct ciss_perf_config *pc = sc->ciss_perf; 848 int reply_size; 849 850 /* 851 * Create the DMA tag for the reply queue. 852 */ 853 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 854 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 855 1, 0, /* alignment, boundary */ 856 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 857 BUS_SPACE_MAXADDR, /* highaddr */ 858 NULL, NULL, /* filter, filterarg */ 859 reply_size, 1, /* maxsize, nsegments */ 860 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 861 0, /* flags */ 862 NULL, NULL, /* lockfunc, lockarg */ 863 &sc->ciss_reply_dmat)) { 864 ciss_printf(sc, "can't allocate reply DMA tag\n"); 865 return(ENOMEM); 866 } 867 /* 868 * Allocate memory and make it available for DMA. 869 */ 870 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 871 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 872 ciss_printf(sc, "can't allocate reply memory\n"); 873 return(ENOMEM); 874 } 875 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 876 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 877 bzero(sc->ciss_reply, reply_size); 878 879 sc->ciss_cycle = 0x1; 880 sc->ciss_rqidx = 0; 881 882 /* 883 * Preload the fetch table with common command sizes. This allows the 884 * hardware to not waste bus cycles for typical i/o commands, but also not 885 * tax the driver to be too exact in choosing sizes. The table is optimized 886 * for page-aligned i/o's, but since most i/o comes from the various pagers, 887 * it's a reasonable assumption to make. 888 */ 889 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 890 pc->fetch_count[CISS_SG_FETCH_1] = 891 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 892 pc->fetch_count[CISS_SG_FETCH_2] = 893 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 894 pc->fetch_count[CISS_SG_FETCH_4] = 895 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 896 pc->fetch_count[CISS_SG_FETCH_8] = 897 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 898 pc->fetch_count[CISS_SG_FETCH_16] = 899 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 900 pc->fetch_count[CISS_SG_FETCH_32] = 901 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 902 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 903 904 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 905 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 906 pc->rq_bank_hi = 0; 907 pc->rq_bank_lo = 0; 908 pc->rq[0].rq_addr_hi = 0x0; 909 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 910 911 return(0); 912 } 913 914 /************************************************************************ 915 * Wait for the adapter to come ready. 916 */ 917 static int 918 ciss_wait_adapter(struct ciss_softc *sc) 919 { 920 int i; 921 922 debug_called(1); 923 924 /* 925 * Wait for the adapter to come ready. 926 */ 927 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 928 ciss_printf(sc, "waiting for adapter to come ready...\n"); 929 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 930 DELAY(1000000); /* one second */ 931 if (i > 30) { 932 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 933 return(EIO); 934 } 935 } 936 } 937 return(0); 938 } 939 940 /************************************************************************ 941 * Flush the adapter cache. 942 */ 943 static int 944 ciss_flush_adapter(struct ciss_softc *sc) 945 { 946 struct ciss_request *cr; 947 struct ciss_bmic_flush_cache *cbfc; 948 int error, command_status; 949 950 debug_called(1); 951 952 cr = NULL; 953 cbfc = NULL; 954 955 /* 956 * Build a BMIC request to flush the cache. We don't disable 957 * it, as we may be going to do more I/O (eg. we are emulating 958 * the Synchronise Cache command). 959 */ 960 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 961 error = ENOMEM; 962 goto out; 963 } 964 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 965 (void **)&cbfc, sizeof(*cbfc))) != 0) 966 goto out; 967 968 /* 969 * Submit the request and wait for it to complete. 970 */ 971 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 972 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 973 goto out; 974 } 975 976 /* 977 * Check response. 978 */ 979 ciss_report_request(cr, &command_status, NULL); 980 switch(command_status) { 981 case CISS_CMD_STATUS_SUCCESS: 982 break; 983 default: 984 ciss_printf(sc, "error flushing cache (%s)\n", 985 ciss_name_command_status(command_status)); 986 error = EIO; 987 goto out; 988 } 989 990 out: 991 if (cbfc != NULL) 992 free(cbfc, CISS_MALLOC_CLASS); 993 if (cr != NULL) 994 ciss_release_request(cr); 995 return(error); 996 } 997 998 static void 999 ciss_soft_reset(struct ciss_softc *sc) 1000 { 1001 struct ciss_request *cr = NULL; 1002 struct ciss_command *cc; 1003 int i, error = 0; 1004 1005 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1006 /* only reset proxy controllers */ 1007 if (sc->ciss_controllers[i].physical.bus == 0) 1008 continue; 1009 1010 if ((error = ciss_get_request(sc, &cr)) != 0) 1011 break; 1012 1013 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1014 NULL, 0)) != 0) 1015 break; 1016 1017 cc = CISS_FIND_COMMAND(cr); 1018 cc->header.address = sc->ciss_controllers[i]; 1019 1020 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1021 break; 1022 1023 ciss_release_request(cr); 1024 } 1025 1026 if (error) 1027 ciss_printf(sc, "error resetting controller (%d)\n", error); 1028 1029 if (cr != NULL) 1030 ciss_release_request(cr); 1031 } 1032 1033 /************************************************************************ 1034 * Allocate memory for the adapter command structures, initialise 1035 * the request structures. 1036 * 1037 * Note that the entire set of commands are allocated in a single 1038 * contiguous slab. 1039 */ 1040 static int 1041 ciss_init_requests(struct ciss_softc *sc) 1042 { 1043 struct ciss_request *cr; 1044 int i; 1045 1046 debug_called(1); 1047 1048 if (bootverbose) 1049 ciss_printf(sc, "using %d of %d available commands\n", 1050 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1051 1052 /* 1053 * Create the DMA tag for commands. 1054 */ 1055 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1056 32, 0, /* alignment, boundary */ 1057 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1058 BUS_SPACE_MAXADDR, /* highaddr */ 1059 NULL, NULL, /* filter, filterarg */ 1060 CISS_COMMAND_ALLOC_SIZE * 1061 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1062 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1063 0, /* flags */ 1064 NULL, NULL, /* lockfunc, lockarg */ 1065 &sc->ciss_command_dmat)) { 1066 ciss_printf(sc, "can't allocate command DMA tag\n"); 1067 return(ENOMEM); 1068 } 1069 /* 1070 * Allocate memory and make it available for DMA. 1071 */ 1072 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1073 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1074 ciss_printf(sc, "can't allocate command memory\n"); 1075 return(ENOMEM); 1076 } 1077 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1078 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1079 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1080 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1081 1082 /* 1083 * Set up the request and command structures, push requests onto 1084 * the free queue. 1085 */ 1086 for (i = 1; i < sc->ciss_max_requests; i++) { 1087 cr = &sc->ciss_request[i]; 1088 cr->cr_sc = sc; 1089 cr->cr_tag = i; 1090 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1091 ciss_enqueue_free(cr); 1092 } 1093 return(0); 1094 } 1095 1096 static void 1097 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1098 { 1099 uint32_t *addr; 1100 1101 addr = arg; 1102 *addr = segs[0].ds_addr; 1103 } 1104 1105 /************************************************************************ 1106 * Identify the adapter, print some information about it. 1107 */ 1108 static int 1109 ciss_identify_adapter(struct ciss_softc *sc) 1110 { 1111 struct ciss_request *cr; 1112 int error, command_status; 1113 1114 debug_called(1); 1115 1116 cr = NULL; 1117 1118 /* 1119 * Get a request, allocate storage for the adapter data. 1120 */ 1121 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1122 (void **)&sc->ciss_id, 1123 sizeof(*sc->ciss_id))) != 0) 1124 goto out; 1125 1126 /* 1127 * Submit the request and wait for it to complete. 1128 */ 1129 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1130 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1131 goto out; 1132 } 1133 1134 /* 1135 * Check response. 1136 */ 1137 ciss_report_request(cr, &command_status, NULL); 1138 switch(command_status) { 1139 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1140 break; 1141 case CISS_CMD_STATUS_DATA_UNDERRUN: 1142 case CISS_CMD_STATUS_DATA_OVERRUN: 1143 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1144 default: 1145 ciss_printf(sc, "error reading adapter information (%s)\n", 1146 ciss_name_command_status(command_status)); 1147 error = EIO; 1148 goto out; 1149 } 1150 1151 /* sanity-check reply */ 1152 if (!sc->ciss_id->big_map_supported) { 1153 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1154 error = ENXIO; 1155 goto out; 1156 } 1157 1158 #if 0 1159 /* XXX later revisions may not need this */ 1160 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1161 #endif 1162 1163 /* XXX only really required for old 5300 adapters? */ 1164 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1165 1166 /* print information */ 1167 if (bootverbose) { 1168 #if 0 /* XXX proxy volumes??? */ 1169 ciss_printf(sc, " %d logical drive%s configured\n", 1170 sc->ciss_id->configured_logical_drives, 1171 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1172 #endif 1173 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1174 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1175 1176 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1177 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1178 ciss_printf(sc, " supported I/O methods 0x%b\n", 1179 sc->ciss_cfg->supported_methods, 1180 "\20\1READY\2simple\3performant\4MEMQ\n"); 1181 ciss_printf(sc, " active I/O method 0x%b\n", 1182 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1183 ciss_printf(sc, " 4G page base 0x%08x\n", 1184 sc->ciss_cfg->command_physlimit); 1185 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1186 sc->ciss_cfg->interrupt_coalesce_delay); 1187 ciss_printf(sc, " interrupt coalesce count %d\n", 1188 sc->ciss_cfg->interrupt_coalesce_count); 1189 ciss_printf(sc, " max outstanding commands %d\n", 1190 sc->ciss_cfg->max_outstanding_commands); 1191 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1192 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1193 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1194 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1195 } 1196 1197 out: 1198 if (error) { 1199 if (sc->ciss_id != NULL) { 1200 free(sc->ciss_id, CISS_MALLOC_CLASS); 1201 sc->ciss_id = NULL; 1202 } 1203 } 1204 if (cr != NULL) 1205 ciss_release_request(cr); 1206 return(error); 1207 } 1208 1209 /************************************************************************ 1210 * Helper routine for generating a list of logical and physical luns. 1211 */ 1212 static struct ciss_lun_report * 1213 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1214 { 1215 struct ciss_request *cr; 1216 struct ciss_command *cc; 1217 struct ciss_report_cdb *crc; 1218 struct ciss_lun_report *cll; 1219 int command_status; 1220 int report_size; 1221 int error = 0; 1222 1223 debug_called(1); 1224 1225 cr = NULL; 1226 cll = NULL; 1227 1228 /* 1229 * Get a request, allocate storage for the address list. 1230 */ 1231 if ((error = ciss_get_request(sc, &cr)) != 0) 1232 goto out; 1233 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1234 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1235 ciss_printf(sc, "can't allocate memory for lun report\n"); 1236 error = ENOMEM; 1237 goto out; 1238 } 1239 1240 /* 1241 * Build the Report Logical/Physical LUNs command. 1242 */ 1243 cc = CISS_FIND_COMMAND(cr); 1244 cr->cr_data = cll; 1245 cr->cr_length = report_size; 1246 cr->cr_flags = CISS_REQ_DATAIN; 1247 1248 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1249 cc->header.address.physical.bus = 0; 1250 cc->header.address.physical.target = 0; 1251 cc->cdb.cdb_length = sizeof(*crc); 1252 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1253 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1254 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1255 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1256 1257 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1258 bzero(crc, sizeof(*crc)); 1259 crc->opcode = opcode; 1260 crc->length = htonl(report_size); /* big-endian field */ 1261 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1262 1263 /* 1264 * Submit the request and wait for it to complete. (timeout 1265 * here should be much greater than above) 1266 */ 1267 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1268 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1269 goto out; 1270 } 1271 1272 /* 1273 * Check response. Note that data over/underrun is OK. 1274 */ 1275 ciss_report_request(cr, &command_status, NULL); 1276 switch(command_status) { 1277 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1278 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1279 break; 1280 case CISS_CMD_STATUS_DATA_OVERRUN: 1281 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1282 CISS_MAX_LOGICAL); 1283 break; 1284 default: 1285 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1286 ciss_name_command_status(command_status)); 1287 error = EIO; 1288 goto out; 1289 } 1290 ciss_release_request(cr); 1291 cr = NULL; 1292 1293 out: 1294 if (cr != NULL) 1295 ciss_release_request(cr); 1296 if (error && cll != NULL) { 1297 free(cll, CISS_MALLOC_CLASS); 1298 cll = NULL; 1299 } 1300 return(cll); 1301 } 1302 1303 /************************************************************************ 1304 * Find logical drives on the adapter. 1305 */ 1306 static int 1307 ciss_init_logical(struct ciss_softc *sc) 1308 { 1309 struct ciss_lun_report *cll; 1310 int error = 0, i, j; 1311 int ndrives; 1312 1313 debug_called(1); 1314 1315 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1316 CISS_MAX_LOGICAL); 1317 if (cll == NULL) { 1318 error = ENXIO; 1319 goto out; 1320 } 1321 1322 /* sanity-check reply */ 1323 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1324 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1325 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1326 ndrives, CISS_MAX_LOGICAL); 1327 error = ENXIO; 1328 goto out; 1329 } 1330 1331 /* 1332 * Save logical drive information. 1333 */ 1334 if (bootverbose) { 1335 ciss_printf(sc, "%d logical drive%s\n", 1336 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1337 } 1338 1339 sc->ciss_logical = 1340 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1341 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1342 if (sc->ciss_logical == NULL) { 1343 error = ENXIO; 1344 goto out; 1345 } 1346 1347 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1348 sc->ciss_logical[i] = 1349 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1350 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1351 if (sc->ciss_logical[i] == NULL) { 1352 error = ENXIO; 1353 goto out; 1354 } 1355 1356 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1357 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1358 } 1359 1360 1361 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1362 if (i < ndrives) { 1363 struct ciss_ldrive *ld; 1364 int bus, target; 1365 1366 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1367 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1368 ld = &sc->ciss_logical[bus][target]; 1369 1370 ld->cl_address = cll->lun[i]; 1371 ld->cl_controller = &sc->ciss_controllers[bus]; 1372 if (ciss_identify_logical(sc, ld) != 0) 1373 continue; 1374 /* 1375 * If the drive has had media exchanged, we should bring it online. 1376 */ 1377 if (ld->cl_lstatus->media_exchanged) 1378 ciss_accept_media(sc, ld); 1379 1380 } 1381 } 1382 1383 out: 1384 if (cll != NULL) 1385 free(cll, CISS_MALLOC_CLASS); 1386 return(error); 1387 } 1388 1389 static int 1390 ciss_init_physical(struct ciss_softc *sc) 1391 { 1392 struct ciss_lun_report *cll; 1393 int error = 0, i; 1394 int nphys; 1395 int bus, target; 1396 1397 debug_called(1); 1398 1399 bus = 0; 1400 target = 0; 1401 1402 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1403 CISS_MAX_PHYSICAL); 1404 if (cll == NULL) { 1405 error = ENXIO; 1406 goto out; 1407 } 1408 1409 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1410 1411 if (bootverbose) { 1412 ciss_printf(sc, "%d physical device%s\n", 1413 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1414 } 1415 1416 /* 1417 * Figure out the bus mapping. 1418 * Logical buses include both the local logical bus for local arrays and 1419 * proxy buses for remote arrays. Physical buses are numbered by the 1420 * controller and represent physical buses that hold physical devices. 1421 * We shift these bus numbers so that everything fits into a single flat 1422 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1423 * numbers, and the physical bus numbers are shifted to be above that. 1424 * This results in the various driver arrays being indexed as follows: 1425 * 1426 * ciss_controllers[] - indexed by logical bus 1427 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1428 * being shifted by 32. 1429 * ciss_logical[][] - indexed by logical bus 1430 * ciss_physical[][] - indexed by physical bus 1431 * 1432 * XXX This is getting more and more hackish. CISS really doesn't play 1433 * well with a standard SCSI model; devices are addressed via magic 1434 * cookies, not via b/t/l addresses. Since there is no way to store 1435 * the cookie in the CAM device object, we have to keep these lookup 1436 * tables handy so that the devices can be found quickly at the cost 1437 * of wasting memory and having a convoluted lookup scheme. This 1438 * driver should probably be converted to block interface. 1439 */ 1440 /* 1441 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1442 * controller. A proxy controller is another physical controller 1443 * behind the primary PCI controller. We need to know about this 1444 * so that BMIC commands can be properly targeted. There can be 1445 * proxy controllers attached to a single PCI controller, so 1446 * find the highest numbered one so the array can be properly 1447 * sized. 1448 */ 1449 sc->ciss_max_logical_bus = 1; 1450 for (i = 0; i < nphys; i++) { 1451 if (cll->lun[i].physical.extra_address == 0) { 1452 bus = cll->lun[i].physical.bus; 1453 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1454 } else { 1455 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1456 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1457 } 1458 } 1459 1460 sc->ciss_controllers = 1461 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1462 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1463 1464 if (sc->ciss_controllers == NULL) { 1465 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1466 error = ENOMEM; 1467 goto out; 1468 } 1469 1470 /* setup a map of controller addresses */ 1471 for (i = 0; i < nphys; i++) { 1472 if (cll->lun[i].physical.extra_address == 0) { 1473 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1474 } 1475 } 1476 1477 sc->ciss_physical = 1478 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1479 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1480 if (sc->ciss_physical == NULL) { 1481 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1482 error = ENOMEM; 1483 goto out; 1484 } 1485 1486 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1487 sc->ciss_physical[i] = 1488 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1489 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1490 if (sc->ciss_physical[i] == NULL) { 1491 ciss_printf(sc, "Could not allocate memory for target map\n"); 1492 error = ENOMEM; 1493 goto out; 1494 } 1495 } 1496 1497 ciss_filter_physical(sc, cll); 1498 1499 out: 1500 if (cll != NULL) 1501 free(cll, CISS_MALLOC_CLASS); 1502 1503 return(error); 1504 } 1505 1506 static int 1507 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1508 { 1509 u_int32_t ea; 1510 int i, nphys; 1511 int bus, target; 1512 1513 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1514 for (i = 0; i < nphys; i++) { 1515 if (cll->lun[i].physical.extra_address == 0) 1516 continue; 1517 1518 /* 1519 * Filter out devices that we don't want. Level 3 LUNs could 1520 * probably be supported, but the docs don't give enough of a 1521 * hint to know how. 1522 * 1523 * The mode field of the physical address is likely set to have 1524 * hard disks masked out. Honor it unless the user has overridden 1525 * us with the tunable. We also munge the inquiry data for these 1526 * disks so that they only show up as passthrough devices. Keeping 1527 * them visible in this fashion is useful for doing things like 1528 * flashing firmware. 1529 */ 1530 ea = cll->lun[i].physical.extra_address; 1531 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1532 (CISS_EXTRA_MODE2(ea) == 0x3)) 1533 continue; 1534 if ((ciss_expose_hidden_physical == 0) && 1535 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1536 continue; 1537 1538 /* 1539 * Note: CISS firmware numbers physical busses starting at '1', not 1540 * '0'. This numbering is internal to the firmware and is only 1541 * used as a hint here. 1542 */ 1543 bus = CISS_EXTRA_BUS2(ea) - 1; 1544 target = CISS_EXTRA_TARGET2(ea); 1545 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1546 sc->ciss_physical[bus][target].cp_online = 1; 1547 } 1548 1549 return (0); 1550 } 1551 1552 static int 1553 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1554 { 1555 struct ciss_request *cr; 1556 struct ciss_command *cc; 1557 struct scsi_inquiry *inq; 1558 int error; 1559 int command_status; 1560 1561 cr = NULL; 1562 1563 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1564 1565 if ((error = ciss_get_request(sc, &cr)) != 0) 1566 goto out; 1567 1568 cc = CISS_FIND_COMMAND(cr); 1569 cr->cr_data = &ld->cl_geometry; 1570 cr->cr_length = sizeof(ld->cl_geometry); 1571 cr->cr_flags = CISS_REQ_DATAIN; 1572 1573 cc->header.address = ld->cl_address; 1574 cc->cdb.cdb_length = 6; 1575 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1576 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1577 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1578 cc->cdb.timeout = 30; 1579 1580 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1581 inq->opcode = INQUIRY; 1582 inq->byte2 = SI_EVPD; 1583 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1584 inq->length = sizeof(ld->cl_geometry); 1585 1586 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1587 ciss_printf(sc, "error getting geometry (%d)\n", error); 1588 goto out; 1589 } 1590 1591 ciss_report_request(cr, &command_status, NULL); 1592 switch(command_status) { 1593 case CISS_CMD_STATUS_SUCCESS: 1594 case CISS_CMD_STATUS_DATA_UNDERRUN: 1595 break; 1596 case CISS_CMD_STATUS_DATA_OVERRUN: 1597 ciss_printf(sc, "WARNING: Data overrun\n"); 1598 break; 1599 default: 1600 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1601 ciss_name_command_status(command_status)); 1602 break; 1603 } 1604 1605 out: 1606 if (cr != NULL) 1607 ciss_release_request(cr); 1608 return(error); 1609 } 1610 /************************************************************************ 1611 * Identify a logical drive, initialise state related to it. 1612 */ 1613 static int 1614 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1615 { 1616 struct ciss_request *cr; 1617 struct ciss_command *cc; 1618 struct ciss_bmic_cdb *cbc; 1619 int error, command_status; 1620 1621 debug_called(1); 1622 1623 cr = NULL; 1624 1625 /* 1626 * Build a BMIC request to fetch the drive ID. 1627 */ 1628 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1629 (void **)&ld->cl_ldrive, 1630 sizeof(*ld->cl_ldrive))) != 0) 1631 goto out; 1632 cc = CISS_FIND_COMMAND(cr); 1633 cc->header.address = *ld->cl_controller; /* target controller */ 1634 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1635 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1636 1637 /* 1638 * Submit the request and wait for it to complete. 1639 */ 1640 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1641 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1642 goto out; 1643 } 1644 1645 /* 1646 * Check response. 1647 */ 1648 ciss_report_request(cr, &command_status, NULL); 1649 switch(command_status) { 1650 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1651 break; 1652 case CISS_CMD_STATUS_DATA_UNDERRUN: 1653 case CISS_CMD_STATUS_DATA_OVERRUN: 1654 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1655 default: 1656 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1657 ciss_name_command_status(command_status)); 1658 error = EIO; 1659 goto out; 1660 } 1661 ciss_release_request(cr); 1662 cr = NULL; 1663 1664 /* 1665 * Build a CISS BMIC command to get the logical drive status. 1666 */ 1667 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1668 goto out; 1669 1670 /* 1671 * Get the logical drive geometry. 1672 */ 1673 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1674 goto out; 1675 1676 /* 1677 * Print the drive's basic characteristics. 1678 */ 1679 if (bootverbose) { 1680 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1681 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1682 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1683 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1684 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1685 ld->cl_ldrive->block_size)); 1686 1687 ciss_print_ldrive(sc, ld); 1688 } 1689 out: 1690 if (error != 0) { 1691 /* make the drive not-exist */ 1692 ld->cl_status = CISS_LD_NONEXISTENT; 1693 if (ld->cl_ldrive != NULL) { 1694 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1695 ld->cl_ldrive = NULL; 1696 } 1697 if (ld->cl_lstatus != NULL) { 1698 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1699 ld->cl_lstatus = NULL; 1700 } 1701 } 1702 if (cr != NULL) 1703 ciss_release_request(cr); 1704 1705 return(error); 1706 } 1707 1708 /************************************************************************ 1709 * Get status for a logical drive. 1710 * 1711 * XXX should we also do this in response to Test Unit Ready? 1712 */ 1713 static int 1714 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1715 { 1716 struct ciss_request *cr; 1717 struct ciss_command *cc; 1718 struct ciss_bmic_cdb *cbc; 1719 int error, command_status; 1720 1721 /* 1722 * Build a CISS BMIC command to get the logical drive status. 1723 */ 1724 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1725 (void **)&ld->cl_lstatus, 1726 sizeof(*ld->cl_lstatus))) != 0) 1727 goto out; 1728 cc = CISS_FIND_COMMAND(cr); 1729 cc->header.address = *ld->cl_controller; /* target controller */ 1730 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1731 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1732 1733 /* 1734 * Submit the request and wait for it to complete. 1735 */ 1736 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1737 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1738 goto out; 1739 } 1740 1741 /* 1742 * Check response. 1743 */ 1744 ciss_report_request(cr, &command_status, NULL); 1745 switch(command_status) { 1746 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1747 break; 1748 case CISS_CMD_STATUS_DATA_UNDERRUN: 1749 case CISS_CMD_STATUS_DATA_OVERRUN: 1750 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1751 default: 1752 ciss_printf(sc, "error reading logical drive status (%s)\n", 1753 ciss_name_command_status(command_status)); 1754 error = EIO; 1755 goto out; 1756 } 1757 1758 /* 1759 * Set the drive's summary status based on the returned status. 1760 * 1761 * XXX testing shows that a failed JBOD drive comes back at next 1762 * boot in "queued for expansion" mode. WTF? 1763 */ 1764 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1765 1766 out: 1767 if (cr != NULL) 1768 ciss_release_request(cr); 1769 return(error); 1770 } 1771 1772 /************************************************************************ 1773 * Notify the adapter of a config update. 1774 */ 1775 static int 1776 ciss_update_config(struct ciss_softc *sc) 1777 { 1778 int i; 1779 1780 debug_called(1); 1781 1782 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1783 for (i = 0; i < 1000; i++) { 1784 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1785 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1786 return(0); 1787 } 1788 DELAY(1000); 1789 } 1790 return(1); 1791 } 1792 1793 /************************************************************************ 1794 * Accept new media into a logical drive. 1795 * 1796 * XXX The drive has previously been offline; it would be good if we 1797 * could make sure it's not open right now. 1798 */ 1799 static int 1800 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1801 { 1802 struct ciss_request *cr; 1803 struct ciss_command *cc; 1804 struct ciss_bmic_cdb *cbc; 1805 int command_status; 1806 int error = 0, ldrive; 1807 1808 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1809 1810 debug(0, "bringing logical drive %d back online"); 1811 1812 /* 1813 * Build a CISS BMIC command to bring the drive back online. 1814 */ 1815 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1816 NULL, 0)) != 0) 1817 goto out; 1818 cc = CISS_FIND_COMMAND(cr); 1819 cc->header.address = *ld->cl_controller; /* target controller */ 1820 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1821 cbc->log_drive = ldrive; 1822 1823 /* 1824 * Submit the request and wait for it to complete. 1825 */ 1826 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1827 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1828 goto out; 1829 } 1830 1831 /* 1832 * Check response. 1833 */ 1834 ciss_report_request(cr, &command_status, NULL); 1835 switch(command_status) { 1836 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1837 /* we should get a logical drive status changed event here */ 1838 break; 1839 default: 1840 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1841 ciss_name_command_status(command_status)); 1842 break; 1843 } 1844 1845 out: 1846 if (cr != NULL) 1847 ciss_release_request(cr); 1848 return(error); 1849 } 1850 1851 /************************************************************************ 1852 * Release adapter resources. 1853 */ 1854 static void 1855 ciss_free(struct ciss_softc *sc) 1856 { 1857 struct ciss_request *cr; 1858 int i, j; 1859 1860 debug_called(1); 1861 1862 /* we're going away */ 1863 sc->ciss_flags |= CISS_FLAG_ABORTING; 1864 1865 /* terminate the periodic heartbeat routine */ 1866 callout_stop(&sc->ciss_periodic); 1867 1868 /* cancel the Event Notify chain */ 1869 ciss_notify_abort(sc); 1870 1871 ciss_kill_notify_thread(sc); 1872 1873 /* disconnect from CAM */ 1874 if (sc->ciss_cam_sim) { 1875 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1876 if (sc->ciss_cam_sim[i]) { 1877 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1878 cam_sim_free(sc->ciss_cam_sim[i], 0); 1879 } 1880 } 1881 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1882 CISS_PHYSICAL_BASE; i++) { 1883 if (sc->ciss_cam_sim[i]) { 1884 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1885 cam_sim_free(sc->ciss_cam_sim[i], 0); 1886 } 1887 } 1888 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1889 } 1890 if (sc->ciss_cam_devq) 1891 cam_simq_free(sc->ciss_cam_devq); 1892 1893 /* remove the control device */ 1894 mtx_unlock(&sc->ciss_mtx); 1895 if (sc->ciss_dev_t != NULL) 1896 destroy_dev(sc->ciss_dev_t); 1897 1898 /* Final cleanup of the callout. */ 1899 callout_drain(&sc->ciss_periodic); 1900 mtx_destroy(&sc->ciss_mtx); 1901 1902 /* free the controller data */ 1903 if (sc->ciss_id != NULL) 1904 free(sc->ciss_id, CISS_MALLOC_CLASS); 1905 1906 /* release I/O resources */ 1907 if (sc->ciss_regs_resource != NULL) 1908 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1909 sc->ciss_regs_rid, sc->ciss_regs_resource); 1910 if (sc->ciss_cfg_resource != NULL) 1911 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1912 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1913 if (sc->ciss_intr != NULL) 1914 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1915 if (sc->ciss_irq_resource != NULL) 1916 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1917 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1918 if (sc->ciss_msi) 1919 pci_release_msi(sc->ciss_dev); 1920 1921 while ((cr = ciss_dequeue_free(sc)) != NULL) 1922 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1923 if (sc->ciss_buffer_dmat) 1924 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1925 1926 /* destroy command memory and DMA tag */ 1927 if (sc->ciss_command != NULL) { 1928 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1929 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1930 } 1931 if (sc->ciss_command_dmat) 1932 bus_dma_tag_destroy(sc->ciss_command_dmat); 1933 1934 if (sc->ciss_reply) { 1935 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1936 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1937 } 1938 if (sc->ciss_reply_dmat) 1939 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1940 1941 /* destroy DMA tags */ 1942 if (sc->ciss_parent_dmat) 1943 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1944 if (sc->ciss_logical) { 1945 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1946 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1947 if (sc->ciss_logical[i][j].cl_ldrive) 1948 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1949 if (sc->ciss_logical[i][j].cl_lstatus) 1950 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1951 } 1952 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1953 } 1954 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1955 } 1956 1957 if (sc->ciss_physical) { 1958 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1959 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1960 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1961 } 1962 1963 if (sc->ciss_controllers) 1964 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1965 1966 } 1967 1968 /************************************************************************ 1969 * Give a command to the adapter. 1970 * 1971 * Note that this uses the simple transport layer directly. If we 1972 * want to add support for other layers, we'll need a switch of some 1973 * sort. 1974 * 1975 * Note that the simple transport layer has no way of refusing a 1976 * command; we only have as many request structures as the adapter 1977 * supports commands, so we don't have to check (this presumes that 1978 * the adapter can handle commands as fast as we throw them at it). 1979 */ 1980 static int 1981 ciss_start(struct ciss_request *cr) 1982 { 1983 struct ciss_command *cc; /* XXX debugging only */ 1984 int error; 1985 1986 cc = CISS_FIND_COMMAND(cr); 1987 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1988 1989 /* 1990 * Map the request's data. 1991 */ 1992 if ((error = ciss_map_request(cr))) 1993 return(error); 1994 1995 #if 0 1996 ciss_print_request(cr); 1997 #endif 1998 1999 return(0); 2000 } 2001 2002 /************************************************************************ 2003 * Fetch completed request(s) from the adapter, queue them for 2004 * completion handling. 2005 * 2006 * Note that this uses the simple transport layer directly. If we 2007 * want to add support for other layers, we'll need a switch of some 2008 * sort. 2009 * 2010 * Note that the simple transport mechanism does not require any 2011 * reentrancy protection; the OPQ read is atomic. If there is a 2012 * chance of a race with something else that might move the request 2013 * off the busy list, then we will have to lock against that 2014 * (eg. timeouts, etc.) 2015 */ 2016 static void 2017 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2018 { 2019 struct ciss_request *cr; 2020 struct ciss_command *cc; 2021 u_int32_t tag, index; 2022 2023 debug_called(3); 2024 2025 /* 2026 * Loop quickly taking requests from the adapter and moving them 2027 * to the completed queue. 2028 */ 2029 for (;;) { 2030 2031 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2032 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2033 break; 2034 index = tag >> 2; 2035 debug(2, "completed command %d%s", index, 2036 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2037 if (index >= sc->ciss_max_requests) { 2038 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2039 continue; 2040 } 2041 cr = &(sc->ciss_request[index]); 2042 cc = CISS_FIND_COMMAND(cr); 2043 cc->header.host_tag = tag; /* not updated by adapter */ 2044 ciss_enqueue_complete(cr, qh); 2045 } 2046 2047 } 2048 2049 static void 2050 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2051 { 2052 struct ciss_request *cr; 2053 struct ciss_command *cc; 2054 u_int32_t tag, index; 2055 2056 debug_called(3); 2057 2058 /* 2059 * Loop quickly taking requests from the adapter and moving them 2060 * to the completed queue. 2061 */ 2062 for (;;) { 2063 tag = sc->ciss_reply[sc->ciss_rqidx]; 2064 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2065 break; 2066 index = tag >> 2; 2067 debug(2, "completed command %d%s\n", index, 2068 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2069 if (index < sc->ciss_max_requests) { 2070 cr = &(sc->ciss_request[index]); 2071 cc = CISS_FIND_COMMAND(cr); 2072 cc->header.host_tag = tag; /* not updated by adapter */ 2073 ciss_enqueue_complete(cr, qh); 2074 } else { 2075 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2076 } 2077 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2078 sc->ciss_rqidx = 0; 2079 sc->ciss_cycle ^= 1; 2080 } 2081 } 2082 2083 } 2084 2085 /************************************************************************ 2086 * Take an interrupt from the adapter. 2087 */ 2088 static void 2089 ciss_intr(void *arg) 2090 { 2091 cr_qhead_t qh; 2092 struct ciss_softc *sc = (struct ciss_softc *)arg; 2093 2094 /* 2095 * The only interrupt we recognise indicates that there are 2096 * entries in the outbound post queue. 2097 */ 2098 STAILQ_INIT(&qh); 2099 ciss_done(sc, &qh); 2100 mtx_lock(&sc->ciss_mtx); 2101 ciss_complete(sc, &qh); 2102 mtx_unlock(&sc->ciss_mtx); 2103 } 2104 2105 static void 2106 ciss_perf_intr(void *arg) 2107 { 2108 struct ciss_softc *sc = (struct ciss_softc *)arg; 2109 2110 /* Clear the interrupt and flush the bridges. Docs say that the flush 2111 * needs to be done twice, which doesn't seem right. 2112 */ 2113 CISS_TL_PERF_CLEAR_INT(sc); 2114 CISS_TL_PERF_FLUSH_INT(sc); 2115 2116 ciss_perf_msi_intr(sc); 2117 } 2118 2119 static void 2120 ciss_perf_msi_intr(void *arg) 2121 { 2122 cr_qhead_t qh; 2123 struct ciss_softc *sc = (struct ciss_softc *)arg; 2124 2125 STAILQ_INIT(&qh); 2126 ciss_perf_done(sc, &qh); 2127 mtx_lock(&sc->ciss_mtx); 2128 ciss_complete(sc, &qh); 2129 mtx_unlock(&sc->ciss_mtx); 2130 } 2131 2132 2133 /************************************************************************ 2134 * Process completed requests. 2135 * 2136 * Requests can be completed in three fashions: 2137 * 2138 * - by invoking a callback function (cr_complete is non-null) 2139 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2140 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2141 */ 2142 static void 2143 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2144 { 2145 struct ciss_request *cr; 2146 2147 debug_called(2); 2148 2149 /* 2150 * Loop taking requests off the completed queue and performing 2151 * completion processing on them. 2152 */ 2153 for (;;) { 2154 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2155 break; 2156 ciss_unmap_request(cr); 2157 2158 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2159 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2160 cr->cr_flags &= ~CISS_REQ_BUSY; 2161 2162 /* 2163 * If the request has a callback, invoke it. 2164 */ 2165 if (cr->cr_complete != NULL) { 2166 cr->cr_complete(cr); 2167 continue; 2168 } 2169 2170 /* 2171 * If someone is sleeping on this request, wake them up. 2172 */ 2173 if (cr->cr_flags & CISS_REQ_SLEEP) { 2174 cr->cr_flags &= ~CISS_REQ_SLEEP; 2175 wakeup(cr); 2176 continue; 2177 } 2178 2179 /* 2180 * If someone is polling this request for completion, signal. 2181 */ 2182 if (cr->cr_flags & CISS_REQ_POLL) { 2183 cr->cr_flags &= ~CISS_REQ_POLL; 2184 continue; 2185 } 2186 2187 /* 2188 * Give up and throw the request back on the free queue. This 2189 * should never happen; resources will probably be lost. 2190 */ 2191 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2192 ciss_enqueue_free(cr); 2193 } 2194 } 2195 2196 /************************************************************************ 2197 * Report on the completion status of a request, and pass back SCSI 2198 * and command status values. 2199 */ 2200 static int 2201 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2202 { 2203 struct ciss_command *cc; 2204 struct ciss_error_info *ce; 2205 2206 debug_called(2); 2207 2208 cc = CISS_FIND_COMMAND(cr); 2209 ce = (struct ciss_error_info *)&(cc->sg[0]); 2210 2211 /* 2212 * We don't consider data under/overrun an error for the Report 2213 * Logical/Physical LUNs commands. 2214 */ 2215 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2216 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2217 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2218 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2219 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2220 (cc->cdb.cdb[0] == INQUIRY))) { 2221 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2222 debug(2, "ignoring irrelevant under/overrun error"); 2223 } 2224 2225 /* 2226 * Check the command's error bit, if clear, there's no status and 2227 * everything is OK. 2228 */ 2229 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2230 if (scsi_status != NULL) 2231 *scsi_status = SCSI_STATUS_OK; 2232 if (command_status != NULL) 2233 *command_status = CISS_CMD_STATUS_SUCCESS; 2234 return(0); 2235 } else { 2236 if (command_status != NULL) 2237 *command_status = ce->command_status; 2238 if (scsi_status != NULL) { 2239 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2240 *scsi_status = ce->scsi_status; 2241 } else { 2242 *scsi_status = -1; 2243 } 2244 } 2245 if (bootverbose) 2246 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2247 ce->command_status, ciss_name_command_status(ce->command_status), 2248 ce->scsi_status); 2249 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2250 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2251 ce->additional_error_info.invalid_command.offense_size, 2252 ce->additional_error_info.invalid_command.offense_offset, 2253 ce->additional_error_info.invalid_command.offense_value, 2254 func); 2255 } 2256 } 2257 #if 0 2258 ciss_print_request(cr); 2259 #endif 2260 return(1); 2261 } 2262 2263 /************************************************************************ 2264 * Issue a request and don't return until it's completed. 2265 * 2266 * Depending on adapter status, we may poll or sleep waiting for 2267 * completion. 2268 */ 2269 static int 2270 ciss_synch_request(struct ciss_request *cr, int timeout) 2271 { 2272 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2273 return(ciss_wait_request(cr, timeout)); 2274 } else { 2275 return(ciss_poll_request(cr, timeout)); 2276 } 2277 } 2278 2279 /************************************************************************ 2280 * Issue a request and poll for completion. 2281 * 2282 * Timeout in milliseconds. 2283 */ 2284 static int 2285 ciss_poll_request(struct ciss_request *cr, int timeout) 2286 { 2287 cr_qhead_t qh; 2288 struct ciss_softc *sc; 2289 int error; 2290 2291 debug_called(2); 2292 2293 STAILQ_INIT(&qh); 2294 sc = cr->cr_sc; 2295 cr->cr_flags |= CISS_REQ_POLL; 2296 if ((error = ciss_start(cr)) != 0) 2297 return(error); 2298 2299 do { 2300 if (sc->ciss_perf) 2301 ciss_perf_done(sc, &qh); 2302 else 2303 ciss_done(sc, &qh); 2304 ciss_complete(sc, &qh); 2305 if (!(cr->cr_flags & CISS_REQ_POLL)) 2306 return(0); 2307 DELAY(1000); 2308 } while (timeout-- >= 0); 2309 return(EWOULDBLOCK); 2310 } 2311 2312 /************************************************************************ 2313 * Issue a request and sleep waiting for completion. 2314 * 2315 * Timeout in milliseconds. Note that a spurious wakeup will reset 2316 * the timeout. 2317 */ 2318 static int 2319 ciss_wait_request(struct ciss_request *cr, int timeout) 2320 { 2321 int error; 2322 2323 debug_called(2); 2324 2325 cr->cr_flags |= CISS_REQ_SLEEP; 2326 if ((error = ciss_start(cr)) != 0) 2327 return(error); 2328 2329 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2330 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2331 } 2332 return(error); 2333 } 2334 2335 #if 0 2336 /************************************************************************ 2337 * Abort a request. Note that a potential exists here to race the 2338 * request being completed; the caller must deal with this. 2339 */ 2340 static int 2341 ciss_abort_request(struct ciss_request *ar) 2342 { 2343 struct ciss_request *cr; 2344 struct ciss_command *cc; 2345 struct ciss_message_cdb *cmc; 2346 int error; 2347 2348 debug_called(1); 2349 2350 /* get a request */ 2351 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2352 return(error); 2353 2354 /* build the abort command */ 2355 cc = CISS_FIND_COMMAND(cr); 2356 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2357 cc->header.address.physical.target = 0; 2358 cc->header.address.physical.bus = 0; 2359 cc->cdb.cdb_length = sizeof(*cmc); 2360 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2361 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2362 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2363 cc->cdb.timeout = 30; 2364 2365 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2366 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2367 cmc->type = CISS_MESSAGE_ABORT_TASK; 2368 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2369 2370 /* 2371 * Send the request and wait for a response. If we believe we 2372 * aborted the request OK, clear the flag that indicates it's 2373 * running. 2374 */ 2375 error = ciss_synch_request(cr, 35 * 1000); 2376 if (!error) 2377 error = ciss_report_request(cr, NULL, NULL); 2378 ciss_release_request(cr); 2379 2380 return(error); 2381 } 2382 #endif 2383 2384 2385 /************************************************************************ 2386 * Fetch and initialise a request 2387 */ 2388 static int 2389 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2390 { 2391 struct ciss_request *cr; 2392 2393 debug_called(2); 2394 2395 /* 2396 * Get a request and clean it up. 2397 */ 2398 if ((cr = ciss_dequeue_free(sc)) == NULL) 2399 return(ENOMEM); 2400 2401 cr->cr_data = NULL; 2402 cr->cr_flags = 0; 2403 cr->cr_complete = NULL; 2404 cr->cr_private = NULL; 2405 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2406 2407 ciss_preen_command(cr); 2408 *crp = cr; 2409 return(0); 2410 } 2411 2412 static void 2413 ciss_preen_command(struct ciss_request *cr) 2414 { 2415 struct ciss_command *cc; 2416 u_int32_t cmdphys; 2417 2418 /* 2419 * Clean up the command structure. 2420 * 2421 * Note that we set up the error_info structure here, since the 2422 * length can be overwritten by any command. 2423 */ 2424 cc = CISS_FIND_COMMAND(cr); 2425 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2426 cc->header.sg_total = 0; 2427 cc->header.host_tag = cr->cr_tag << 2; 2428 cc->header.host_tag_zeroes = 0; 2429 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2430 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2431 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2432 } 2433 2434 /************************************************************************ 2435 * Release a request to the free list. 2436 */ 2437 static void 2438 ciss_release_request(struct ciss_request *cr) 2439 { 2440 struct ciss_softc *sc; 2441 2442 debug_called(2); 2443 2444 sc = cr->cr_sc; 2445 2446 /* release the request to the free queue */ 2447 ciss_requeue_free(cr); 2448 } 2449 2450 /************************************************************************ 2451 * Allocate a request that will be used to send a BMIC command. Do some 2452 * of the common setup here to avoid duplicating it everywhere else. 2453 */ 2454 static int 2455 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2456 int opcode, void **bufp, size_t bufsize) 2457 { 2458 struct ciss_request *cr; 2459 struct ciss_command *cc; 2460 struct ciss_bmic_cdb *cbc; 2461 void *buf; 2462 int error; 2463 int dataout; 2464 2465 debug_called(2); 2466 2467 cr = NULL; 2468 buf = NULL; 2469 2470 /* 2471 * Get a request. 2472 */ 2473 if ((error = ciss_get_request(sc, &cr)) != 0) 2474 goto out; 2475 2476 /* 2477 * Allocate data storage if requested, determine the data direction. 2478 */ 2479 dataout = 0; 2480 if ((bufsize > 0) && (bufp != NULL)) { 2481 if (*bufp == NULL) { 2482 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2483 error = ENOMEM; 2484 goto out; 2485 } 2486 } else { 2487 buf = *bufp; 2488 dataout = 1; /* we are given a buffer, so we are writing */ 2489 } 2490 } 2491 2492 /* 2493 * Build a CISS BMIC command to get the logical drive ID. 2494 */ 2495 cr->cr_data = buf; 2496 cr->cr_length = bufsize; 2497 if (!dataout) 2498 cr->cr_flags = CISS_REQ_DATAIN; 2499 2500 cc = CISS_FIND_COMMAND(cr); 2501 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2502 cc->header.address.physical.bus = 0; 2503 cc->header.address.physical.target = 0; 2504 cc->cdb.cdb_length = sizeof(*cbc); 2505 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2506 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2507 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2508 cc->cdb.timeout = 0; 2509 2510 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2511 bzero(cbc, sizeof(*cbc)); 2512 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2513 cbc->bmic_opcode = opcode; 2514 cbc->size = htons((u_int16_t)bufsize); 2515 2516 out: 2517 if (error) { 2518 if (cr != NULL) 2519 ciss_release_request(cr); 2520 } else { 2521 *crp = cr; 2522 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2523 *bufp = buf; 2524 } 2525 return(error); 2526 } 2527 2528 /************************************************************************ 2529 * Handle a command passed in from userspace. 2530 */ 2531 static int 2532 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2533 { 2534 struct ciss_request *cr; 2535 struct ciss_command *cc; 2536 struct ciss_error_info *ce; 2537 int error = 0; 2538 2539 debug_called(1); 2540 2541 cr = NULL; 2542 2543 /* 2544 * Get a request. 2545 */ 2546 while (ciss_get_request(sc, &cr) != 0) 2547 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2548 cc = CISS_FIND_COMMAND(cr); 2549 2550 /* 2551 * Allocate an in-kernel databuffer if required, copy in user data. 2552 */ 2553 cr->cr_length = ioc->buf_size; 2554 if (ioc->buf_size > 0) { 2555 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2556 error = ENOMEM; 2557 goto out; 2558 } 2559 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2560 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2561 goto out; 2562 } 2563 } 2564 2565 /* 2566 * Build the request based on the user command. 2567 */ 2568 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2569 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2570 2571 /* XXX anything else to populate here? */ 2572 2573 /* 2574 * Run the command. 2575 */ 2576 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2577 debug(0, "request failed - %d", error); 2578 goto out; 2579 } 2580 2581 /* 2582 * Check to see if the command succeeded. 2583 */ 2584 ce = (struct ciss_error_info *)&(cc->sg[0]); 2585 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2586 bzero(ce, sizeof(*ce)); 2587 2588 /* 2589 * Copy the results back to the user. 2590 */ 2591 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2592 if ((ioc->buf_size > 0) && 2593 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2594 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2595 goto out; 2596 } 2597 2598 /* done OK */ 2599 error = 0; 2600 2601 out: 2602 if ((cr != NULL) && (cr->cr_data != NULL)) 2603 free(cr->cr_data, CISS_MALLOC_CLASS); 2604 if (cr != NULL) 2605 ciss_release_request(cr); 2606 return(error); 2607 } 2608 2609 /************************************************************************ 2610 * Map a request into bus-visible space, initialise the scatter/gather 2611 * list. 2612 */ 2613 static int 2614 ciss_map_request(struct ciss_request *cr) 2615 { 2616 struct ciss_softc *sc; 2617 int error = 0; 2618 2619 debug_called(2); 2620 2621 sc = cr->cr_sc; 2622 2623 /* check that mapping is necessary */ 2624 if (cr->cr_flags & CISS_REQ_MAPPED) 2625 return(0); 2626 2627 cr->cr_flags |= CISS_REQ_MAPPED; 2628 2629 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2630 BUS_DMASYNC_PREWRITE); 2631 2632 if (cr->cr_data != NULL) { 2633 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2634 cr->cr_data, cr->cr_length, 2635 ciss_request_map_helper, cr, 0); 2636 if (error != 0) 2637 return (error); 2638 } else { 2639 /* 2640 * Post the command to the adapter. 2641 */ 2642 cr->cr_sg_tag = CISS_SG_NONE; 2643 cr->cr_flags |= CISS_REQ_BUSY; 2644 if (sc->ciss_perf) 2645 CISS_TL_PERF_POST_CMD(sc, cr); 2646 else 2647 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2648 } 2649 2650 return(0); 2651 } 2652 2653 static void 2654 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2655 { 2656 struct ciss_command *cc; 2657 struct ciss_request *cr; 2658 struct ciss_softc *sc; 2659 int i; 2660 2661 debug_called(2); 2662 2663 cr = (struct ciss_request *)arg; 2664 sc = cr->cr_sc; 2665 cc = CISS_FIND_COMMAND(cr); 2666 2667 for (i = 0; i < nseg; i++) { 2668 cc->sg[i].address = segs[i].ds_addr; 2669 cc->sg[i].length = segs[i].ds_len; 2670 cc->sg[i].extension = 0; 2671 } 2672 /* we leave the s/g table entirely within the command */ 2673 cc->header.sg_in_list = nseg; 2674 cc->header.sg_total = nseg; 2675 2676 if (cr->cr_flags & CISS_REQ_DATAIN) 2677 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2678 if (cr->cr_flags & CISS_REQ_DATAOUT) 2679 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2680 2681 if (nseg == 1) 2682 cr->cr_sg_tag = CISS_SG_NONE; 2683 else if (nseg == 1) 2684 cr->cr_sg_tag = CISS_SG_1; 2685 else if (nseg == 2) 2686 cr->cr_sg_tag = CISS_SG_2; 2687 else if (nseg <= 4) 2688 cr->cr_sg_tag = CISS_SG_4; 2689 else if (nseg <= 8) 2690 cr->cr_sg_tag = CISS_SG_8; 2691 else if (nseg <= 16) 2692 cr->cr_sg_tag = CISS_SG_16; 2693 else if (nseg <= 32) 2694 cr->cr_sg_tag = CISS_SG_32; 2695 else 2696 cr->cr_sg_tag = CISS_SG_MAX; 2697 2698 /* 2699 * Post the command to the adapter. 2700 */ 2701 cr->cr_flags |= CISS_REQ_BUSY; 2702 if (sc->ciss_perf) 2703 CISS_TL_PERF_POST_CMD(sc, cr); 2704 else 2705 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2706 } 2707 2708 /************************************************************************ 2709 * Unmap a request from bus-visible space. 2710 */ 2711 static void 2712 ciss_unmap_request(struct ciss_request *cr) 2713 { 2714 struct ciss_softc *sc; 2715 2716 debug_called(2); 2717 2718 sc = cr->cr_sc; 2719 2720 /* check that unmapping is necessary */ 2721 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2722 return; 2723 2724 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2725 BUS_DMASYNC_POSTWRITE); 2726 2727 if (cr->cr_data == NULL) 2728 goto out; 2729 2730 if (cr->cr_flags & CISS_REQ_DATAIN) 2731 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2732 if (cr->cr_flags & CISS_REQ_DATAOUT) 2733 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2734 2735 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2736 out: 2737 cr->cr_flags &= ~CISS_REQ_MAPPED; 2738 } 2739 2740 /************************************************************************ 2741 * Attach the driver to CAM. 2742 * 2743 * We put all the logical drives on a single SCSI bus. 2744 */ 2745 static int 2746 ciss_cam_init(struct ciss_softc *sc) 2747 { 2748 int i, maxbus; 2749 2750 debug_called(1); 2751 2752 /* 2753 * Allocate a devq. We can reuse this for the masked physical 2754 * devices if we decide to export these as well. 2755 */ 2756 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2757 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2758 return(ENOMEM); 2759 } 2760 2761 /* 2762 * Create a SIM. 2763 * 2764 * This naturally wastes a bit of memory. The alternative is to allocate 2765 * and register each bus as it is found, and then track them on a linked 2766 * list. Unfortunately, the driver has a few places where it needs to 2767 * look up the SIM based solely on bus number, and it's unclear whether 2768 * a list traversal would work for these situations. 2769 */ 2770 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2771 CISS_PHYSICAL_BASE); 2772 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2773 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2774 if (sc->ciss_cam_sim == NULL) { 2775 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2776 return(ENOMEM); 2777 } 2778 2779 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2780 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2781 "ciss", sc, 2782 device_get_unit(sc->ciss_dev), 2783 &sc->ciss_mtx, 2784 2, 2785 sc->ciss_max_requests - 2, 2786 sc->ciss_cam_devq)) == NULL) { 2787 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2788 return(ENOMEM); 2789 } 2790 2791 /* 2792 * Register bus with this SIM. 2793 */ 2794 mtx_lock(&sc->ciss_mtx); 2795 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2796 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2797 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2798 mtx_unlock(&sc->ciss_mtx); 2799 return (ENXIO); 2800 } 2801 } 2802 mtx_unlock(&sc->ciss_mtx); 2803 } 2804 2805 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2806 CISS_PHYSICAL_BASE; i++) { 2807 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2808 "ciss", sc, 2809 device_get_unit(sc->ciss_dev), 2810 &sc->ciss_mtx, 1, 2811 sc->ciss_max_requests - 2, 2812 sc->ciss_cam_devq)) == NULL) { 2813 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2814 return (ENOMEM); 2815 } 2816 2817 mtx_lock(&sc->ciss_mtx); 2818 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2819 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2820 mtx_unlock(&sc->ciss_mtx); 2821 return (ENXIO); 2822 } 2823 mtx_unlock(&sc->ciss_mtx); 2824 } 2825 2826 /* 2827 * Initiate a rescan of the bus. 2828 */ 2829 mtx_lock(&sc->ciss_mtx); 2830 ciss_cam_rescan_all(sc); 2831 mtx_unlock(&sc->ciss_mtx); 2832 2833 return(0); 2834 } 2835 2836 /************************************************************************ 2837 * Initiate a rescan of the 'logical devices' SIM 2838 */ 2839 static void 2840 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2841 { 2842 struct cam_path *path; 2843 union ccb *ccb; 2844 2845 debug_called(1); 2846 2847 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2848 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2849 return; 2850 } 2851 2852 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2853 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2854 ciss_printf(sc, "rescan failed (can't create path)\n"); 2855 free(ccb, CISS_MALLOC_CLASS); 2856 return; 2857 } 2858 2859 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2860 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2861 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2862 ccb->crcn.flags = CAM_FLAG_NONE; 2863 xpt_action(ccb); 2864 2865 /* scan is now in progress */ 2866 } 2867 2868 static void 2869 ciss_cam_rescan_all(struct ciss_softc *sc) 2870 { 2871 int i; 2872 2873 /* Rescan the logical buses */ 2874 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2875 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2876 /* Rescan the physical buses */ 2877 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2878 CISS_PHYSICAL_BASE; i++) 2879 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2880 } 2881 2882 static void 2883 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2884 { 2885 xpt_free_path(ccb->ccb_h.path); 2886 free(ccb, CISS_MALLOC_CLASS); 2887 } 2888 2889 /************************************************************************ 2890 * Handle requests coming from CAM 2891 */ 2892 static void 2893 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2894 { 2895 struct ciss_softc *sc; 2896 struct ccb_scsiio *csio; 2897 int bus, target; 2898 int physical; 2899 2900 sc = cam_sim_softc(sim); 2901 bus = cam_sim_bus(sim); 2902 csio = (struct ccb_scsiio *)&ccb->csio; 2903 target = csio->ccb_h.target_id; 2904 physical = CISS_IS_PHYSICAL(bus); 2905 2906 switch (ccb->ccb_h.func_code) { 2907 2908 /* perform SCSI I/O */ 2909 case XPT_SCSI_IO: 2910 if (!ciss_cam_action_io(sim, csio)) 2911 return; 2912 break; 2913 2914 /* perform geometry calculations */ 2915 case XPT_CALC_GEOMETRY: 2916 { 2917 struct ccb_calc_geometry *ccg = &ccb->ccg; 2918 struct ciss_ldrive *ld; 2919 2920 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2921 2922 ld = NULL; 2923 if (!physical) 2924 ld = &sc->ciss_logical[bus][target]; 2925 2926 /* 2927 * Use the cached geometry settings unless the fault tolerance 2928 * is invalid. 2929 */ 2930 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2931 u_int32_t secs_per_cylinder; 2932 2933 ccg->heads = 255; 2934 ccg->secs_per_track = 32; 2935 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2936 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2937 } else { 2938 ccg->heads = ld->cl_geometry.heads; 2939 ccg->secs_per_track = ld->cl_geometry.sectors; 2940 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2941 } 2942 ccb->ccb_h.status = CAM_REQ_CMP; 2943 break; 2944 } 2945 2946 /* handle path attribute inquiry */ 2947 case XPT_PATH_INQ: 2948 { 2949 struct ccb_pathinq *cpi = &ccb->cpi; 2950 2951 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2952 2953 cpi->version_num = 1; 2954 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2955 cpi->target_sprt = 0; 2956 cpi->hba_misc = 0; 2957 cpi->max_target = CISS_MAX_LOGICAL; 2958 cpi->max_lun = 0; /* 'logical drive' channel only */ 2959 cpi->initiator_id = CISS_MAX_LOGICAL; 2960 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2961 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2962 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2963 cpi->unit_number = cam_sim_unit(sim); 2964 cpi->bus_id = cam_sim_bus(sim); 2965 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2966 cpi->transport = XPORT_SPI; 2967 cpi->transport_version = 2; 2968 cpi->protocol = PROTO_SCSI; 2969 cpi->protocol_version = SCSI_REV_2; 2970 ccb->ccb_h.status = CAM_REQ_CMP; 2971 break; 2972 } 2973 2974 case XPT_GET_TRAN_SETTINGS: 2975 { 2976 struct ccb_trans_settings *cts = &ccb->cts; 2977 int bus, target; 2978 struct ccb_trans_settings_spi *spi = 2979 &cts->xport_specific.spi; 2980 2981 bus = cam_sim_bus(sim); 2982 target = cts->ccb_h.target_id; 2983 2984 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2985 /* disconnect always OK */ 2986 cts->protocol = PROTO_SCSI; 2987 cts->protocol_version = SCSI_REV_2; 2988 cts->transport = XPORT_SPI; 2989 cts->transport_version = 2; 2990 2991 spi->valid = CTS_SPI_VALID_DISC; 2992 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2993 2994 cts->ccb_h.status = CAM_REQ_CMP; 2995 break; 2996 } 2997 2998 default: /* we can't do this */ 2999 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3000 ccb->ccb_h.status = CAM_REQ_INVALID; 3001 break; 3002 } 3003 3004 xpt_done(ccb); 3005 } 3006 3007 /************************************************************************ 3008 * Handle a CAM SCSI I/O request. 3009 */ 3010 static int 3011 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3012 { 3013 struct ciss_softc *sc; 3014 int bus, target; 3015 struct ciss_request *cr; 3016 struct ciss_command *cc; 3017 int error; 3018 3019 sc = cam_sim_softc(sim); 3020 bus = cam_sim_bus(sim); 3021 target = csio->ccb_h.target_id; 3022 3023 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3024 3025 /* check that the CDB pointer is not to a physical address */ 3026 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3027 debug(3, " CDB pointer is to physical address"); 3028 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3029 } 3030 3031 /* if there is data transfer, it must be to/from a virtual address */ 3032 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3033 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3034 debug(3, " data pointer is to physical address"); 3035 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3036 } 3037 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3038 debug(3, " data has premature s/g setup"); 3039 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3040 } 3041 } 3042 3043 /* abandon aborted ccbs or those that have failed validation */ 3044 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3045 debug(3, "abandoning CCB due to abort/validation failure"); 3046 return(EINVAL); 3047 } 3048 3049 /* handle emulation of some SCSI commands ourself */ 3050 if (ciss_cam_emulate(sc, csio)) 3051 return(0); 3052 3053 /* 3054 * Get a request to manage this command. If we can't, return the 3055 * ccb, freeze the queue and flag so that we unfreeze it when a 3056 * request completes. 3057 */ 3058 if ((error = ciss_get_request(sc, &cr)) != 0) { 3059 xpt_freeze_simq(sim, 1); 3060 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3061 return(error); 3062 } 3063 3064 /* 3065 * Build the command. 3066 */ 3067 cc = CISS_FIND_COMMAND(cr); 3068 cr->cr_data = csio->data_ptr; 3069 cr->cr_length = csio->dxfer_len; 3070 cr->cr_complete = ciss_cam_complete; 3071 cr->cr_private = csio; 3072 3073 /* 3074 * Target the right logical volume. 3075 */ 3076 if (CISS_IS_PHYSICAL(bus)) 3077 cc->header.address = 3078 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3079 else 3080 cc->header.address = 3081 sc->ciss_logical[bus][target].cl_address; 3082 cc->cdb.cdb_length = csio->cdb_len; 3083 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3084 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3085 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3086 cr->cr_flags = CISS_REQ_DATAOUT; 3087 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3088 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3089 cr->cr_flags = CISS_REQ_DATAIN; 3090 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3091 } else { 3092 cr->cr_flags = 0; 3093 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3094 } 3095 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3096 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3097 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3098 } else { 3099 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3100 } 3101 3102 /* 3103 * Submit the request to the adapter. 3104 * 3105 * Note that this may fail if we're unable to map the request (and 3106 * if we ever learn a transport layer other than simple, may fail 3107 * if the adapter rejects the command). 3108 */ 3109 if ((error = ciss_start(cr)) != 0) { 3110 xpt_freeze_simq(sim, 1); 3111 if (error == EINPROGRESS) { 3112 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3113 error = 0; 3114 } else { 3115 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3116 ciss_release_request(cr); 3117 } 3118 return(error); 3119 } 3120 3121 return(0); 3122 } 3123 3124 /************************************************************************ 3125 * Emulate SCSI commands the adapter doesn't handle as we might like. 3126 */ 3127 static int 3128 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3129 { 3130 int bus, target; 3131 u_int8_t opcode; 3132 3133 target = csio->ccb_h.target_id; 3134 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3135 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3136 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3137 3138 if (CISS_IS_PHYSICAL(bus)) { 3139 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3140 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3141 xpt_done((union ccb *)csio); 3142 return(1); 3143 } else 3144 return(0); 3145 } 3146 3147 /* 3148 * Handle requests for volumes that don't exist or are not online. 3149 * A selection timeout is slightly better than an illegal request. 3150 * Other errors might be better. 3151 */ 3152 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3153 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3154 xpt_done((union ccb *)csio); 3155 return(1); 3156 } 3157 3158 /* if we have to fake Synchronise Cache */ 3159 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3160 /* 3161 * If this is a Synchronise Cache command, typically issued when 3162 * a device is closed, flush the adapter and complete now. 3163 */ 3164 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3165 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3166 ciss_flush_adapter(sc); 3167 csio->ccb_h.status = CAM_REQ_CMP; 3168 xpt_done((union ccb *)csio); 3169 return(1); 3170 } 3171 } 3172 3173 return(0); 3174 } 3175 3176 /************************************************************************ 3177 * Check for possibly-completed commands. 3178 */ 3179 static void 3180 ciss_cam_poll(struct cam_sim *sim) 3181 { 3182 cr_qhead_t qh; 3183 struct ciss_softc *sc = cam_sim_softc(sim); 3184 3185 debug_called(2); 3186 3187 STAILQ_INIT(&qh); 3188 if (sc->ciss_perf) 3189 ciss_perf_done(sc, &qh); 3190 else 3191 ciss_done(sc, &qh); 3192 ciss_complete(sc, &qh); 3193 } 3194 3195 /************************************************************************ 3196 * Handle completion of a command - pass results back through the CCB 3197 */ 3198 static void 3199 ciss_cam_complete(struct ciss_request *cr) 3200 { 3201 struct ciss_softc *sc; 3202 struct ciss_command *cc; 3203 struct ciss_error_info *ce; 3204 struct ccb_scsiio *csio; 3205 int scsi_status; 3206 int command_status; 3207 3208 debug_called(2); 3209 3210 sc = cr->cr_sc; 3211 cc = CISS_FIND_COMMAND(cr); 3212 ce = (struct ciss_error_info *)&(cc->sg[0]); 3213 csio = (struct ccb_scsiio *)cr->cr_private; 3214 3215 /* 3216 * Extract status values from request. 3217 */ 3218 ciss_report_request(cr, &command_status, &scsi_status); 3219 csio->scsi_status = scsi_status; 3220 3221 /* 3222 * Handle specific SCSI status values. 3223 */ 3224 switch(scsi_status) { 3225 /* no status due to adapter error */ 3226 case -1: 3227 debug(0, "adapter error"); 3228 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3229 break; 3230 3231 /* no status due to command completed OK */ 3232 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3233 debug(2, "SCSI_STATUS_OK"); 3234 csio->ccb_h.status = CAM_REQ_CMP; 3235 break; 3236 3237 /* check condition, sense data included */ 3238 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3239 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3240 ce->sense_length, ce->residual_count); 3241 bzero(&csio->sense_data, SSD_FULL_SIZE); 3242 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3243 csio->sense_len = ce->sense_length; 3244 csio->resid = ce->residual_count; 3245 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3246 #ifdef CISS_DEBUG 3247 { 3248 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3249 debug(0, "sense key %x", sns->flags & SSD_KEY); 3250 } 3251 #endif 3252 break; 3253 3254 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3255 debug(0, "SCSI_STATUS_BUSY"); 3256 csio->ccb_h.status = CAM_SCSI_BUSY; 3257 break; 3258 3259 default: 3260 debug(0, "unknown status 0x%x", csio->scsi_status); 3261 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3262 break; 3263 } 3264 3265 /* handle post-command fixup */ 3266 ciss_cam_complete_fixup(sc, csio); 3267 3268 /* tell CAM we're ready for more commands */ 3269 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3270 3271 ciss_release_request(cr); 3272 xpt_done((union ccb *)csio); 3273 } 3274 3275 /******************************************************************************** 3276 * Fix up the result of some commands here. 3277 */ 3278 static void 3279 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3280 { 3281 struct scsi_inquiry_data *inq; 3282 struct ciss_ldrive *cl; 3283 int bus, target; 3284 3285 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3286 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3287 3288 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3289 target = csio->ccb_h.target_id; 3290 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3291 3292 /* 3293 * Don't let hard drives be seen by the DA driver. They will still be 3294 * attached by the PASS driver. 3295 */ 3296 if (CISS_IS_PHYSICAL(bus)) { 3297 if (SID_TYPE(inq) == T_DIRECT) 3298 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3299 return; 3300 } 3301 3302 cl = &sc->ciss_logical[bus][target]; 3303 3304 padstr(inq->vendor, "COMPAQ", 8); 3305 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3306 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3307 } 3308 } 3309 3310 3311 /******************************************************************************** 3312 * Find a peripheral attached at (target) 3313 */ 3314 static struct cam_periph * 3315 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3316 { 3317 struct cam_periph *periph; 3318 struct cam_path *path; 3319 int status; 3320 3321 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3322 target, 0); 3323 if (status == CAM_REQ_CMP) { 3324 periph = cam_periph_find(path, NULL); 3325 xpt_free_path(path); 3326 } else { 3327 periph = NULL; 3328 } 3329 return(periph); 3330 } 3331 3332 /******************************************************************************** 3333 * Name the device at (target) 3334 * 3335 * XXX is this strictly correct? 3336 */ 3337 static int 3338 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3339 { 3340 struct cam_periph *periph; 3341 3342 if (CISS_IS_PHYSICAL(bus)) 3343 return (0); 3344 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3345 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3346 periph->periph_name, periph->unit_number); 3347 return(0); 3348 } 3349 sc->ciss_logical[bus][target].cl_name[0] = 0; 3350 return(ENOENT); 3351 } 3352 3353 /************************************************************************ 3354 * Periodic status monitoring. 3355 */ 3356 static void 3357 ciss_periodic(void *arg) 3358 { 3359 struct ciss_softc *sc; 3360 struct ciss_request *cr = NULL; 3361 struct ciss_command *cc = NULL; 3362 int error = 0; 3363 3364 debug_called(1); 3365 3366 sc = (struct ciss_softc *)arg; 3367 3368 /* 3369 * Check the adapter heartbeat. 3370 */ 3371 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3372 sc->ciss_heart_attack++; 3373 debug(0, "adapter heart attack in progress 0x%x/%d", 3374 sc->ciss_heartbeat, sc->ciss_heart_attack); 3375 if (sc->ciss_heart_attack == 3) { 3376 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3377 ciss_disable_adapter(sc); 3378 return; 3379 } 3380 } else { 3381 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3382 sc->ciss_heart_attack = 0; 3383 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3384 } 3385 3386 /* 3387 * Send the NOP message and wait for a response. 3388 */ 3389 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3390 cc = CISS_FIND_COMMAND(cr); 3391 cr->cr_complete = ciss_nop_complete; 3392 cc->cdb.cdb_length = 1; 3393 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3394 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3395 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3396 cc->cdb.timeout = 0; 3397 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3398 3399 if ((error = ciss_start(cr)) != 0) { 3400 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3401 } 3402 } 3403 3404 /* 3405 * If the notify event request has died for some reason, or has 3406 * not started yet, restart it. 3407 */ 3408 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3409 debug(0, "(re)starting Event Notify chain"); 3410 ciss_notify_event(sc); 3411 } 3412 3413 /* 3414 * Reschedule. 3415 */ 3416 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3417 } 3418 3419 static void 3420 ciss_nop_complete(struct ciss_request *cr) 3421 { 3422 struct ciss_softc *sc; 3423 static int first_time = 1; 3424 3425 sc = cr->cr_sc; 3426 if (ciss_report_request(cr, NULL, NULL) != 0) { 3427 if (first_time == 1) { 3428 first_time = 0; 3429 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3430 } 3431 } 3432 3433 ciss_release_request(cr); 3434 } 3435 3436 /************************************************************************ 3437 * Disable the adapter. 3438 * 3439 * The all requests in completed queue is failed with hardware error. 3440 * This will cause failover in a multipath configuration. 3441 */ 3442 static void 3443 ciss_disable_adapter(struct ciss_softc *sc) 3444 { 3445 cr_qhead_t qh; 3446 struct ciss_request *cr; 3447 struct ciss_command *cc; 3448 struct ciss_error_info *ce; 3449 int i; 3450 3451 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3452 pci_disable_busmaster(sc->ciss_dev); 3453 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3454 3455 for (i = 1; i < sc->ciss_max_requests; i++) { 3456 cr = &sc->ciss_request[i]; 3457 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3458 continue; 3459 3460 cc = CISS_FIND_COMMAND(cr); 3461 ce = (struct ciss_error_info *)&(cc->sg[0]); 3462 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3463 ciss_enqueue_complete(cr, &qh); 3464 } 3465 3466 for (;;) { 3467 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3468 break; 3469 3470 /* 3471 * If the request has a callback, invoke it. 3472 */ 3473 if (cr->cr_complete != NULL) { 3474 cr->cr_complete(cr); 3475 continue; 3476 } 3477 3478 /* 3479 * If someone is sleeping on this request, wake them up. 3480 */ 3481 if (cr->cr_flags & CISS_REQ_SLEEP) { 3482 cr->cr_flags &= ~CISS_REQ_SLEEP; 3483 wakeup(cr); 3484 continue; 3485 } 3486 } 3487 } 3488 3489 /************************************************************************ 3490 * Request a notification response from the adapter. 3491 * 3492 * If (cr) is NULL, this is the first request of the adapter, so 3493 * reset the adapter's message pointer and start with the oldest 3494 * message available. 3495 */ 3496 static void 3497 ciss_notify_event(struct ciss_softc *sc) 3498 { 3499 struct ciss_request *cr; 3500 struct ciss_command *cc; 3501 struct ciss_notify_cdb *cnc; 3502 int error; 3503 3504 debug_called(1); 3505 3506 cr = sc->ciss_periodic_notify; 3507 3508 /* get a request if we don't already have one */ 3509 if (cr == NULL) { 3510 if ((error = ciss_get_request(sc, &cr)) != 0) { 3511 debug(0, "can't get notify event request"); 3512 goto out; 3513 } 3514 sc->ciss_periodic_notify = cr; 3515 cr->cr_complete = ciss_notify_complete; 3516 debug(1, "acquired request %d", cr->cr_tag); 3517 } 3518 3519 /* 3520 * Get a databuffer if we don't already have one, note that the 3521 * adapter command wants a larger buffer than the actual 3522 * structure. 3523 */ 3524 if (cr->cr_data == NULL) { 3525 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3526 debug(0, "can't get notify event request buffer"); 3527 error = ENOMEM; 3528 goto out; 3529 } 3530 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3531 } 3532 3533 /* re-setup the request's command (since we never release it) XXX overkill*/ 3534 ciss_preen_command(cr); 3535 3536 /* (re)build the notify event command */ 3537 cc = CISS_FIND_COMMAND(cr); 3538 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3539 cc->header.address.physical.bus = 0; 3540 cc->header.address.physical.target = 0; 3541 3542 cc->cdb.cdb_length = sizeof(*cnc); 3543 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3544 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3545 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3546 cc->cdb.timeout = 0; /* no timeout, we hope */ 3547 3548 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3549 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3550 cnc->opcode = CISS_OPCODE_READ; 3551 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3552 cnc->timeout = 0; /* no timeout, we hope */ 3553 cnc->synchronous = 0; 3554 cnc->ordered = 0; 3555 cnc->seek_to_oldest = 0; 3556 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3557 cnc->new_only = 1; 3558 else 3559 cnc->new_only = 0; 3560 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3561 3562 /* submit the request */ 3563 error = ciss_start(cr); 3564 3565 out: 3566 if (error) { 3567 if (cr != NULL) { 3568 if (cr->cr_data != NULL) 3569 free(cr->cr_data, CISS_MALLOC_CLASS); 3570 ciss_release_request(cr); 3571 } 3572 sc->ciss_periodic_notify = NULL; 3573 debug(0, "can't submit notify event request"); 3574 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3575 } else { 3576 debug(1, "notify event submitted"); 3577 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3578 } 3579 } 3580 3581 static void 3582 ciss_notify_complete(struct ciss_request *cr) 3583 { 3584 struct ciss_command *cc; 3585 struct ciss_notify *cn; 3586 struct ciss_softc *sc; 3587 int scsi_status; 3588 int command_status; 3589 debug_called(1); 3590 3591 cc = CISS_FIND_COMMAND(cr); 3592 cn = (struct ciss_notify *)cr->cr_data; 3593 sc = cr->cr_sc; 3594 3595 /* 3596 * Report request results, decode status. 3597 */ 3598 ciss_report_request(cr, &command_status, &scsi_status); 3599 3600 /* 3601 * Abort the chain on a fatal error. 3602 * 3603 * XXX which of these are actually errors? 3604 */ 3605 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3606 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3607 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3608 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3609 ciss_name_command_status(command_status)); 3610 ciss_release_request(cr); 3611 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3612 return; 3613 } 3614 3615 /* 3616 * If the adapter gave us a text message, print it. 3617 */ 3618 if (cn->message[0] != 0) 3619 ciss_printf(sc, "*** %.80s\n", cn->message); 3620 3621 debug(0, "notify event class %d subclass %d detail %d", 3622 cn->class, cn->subclass, cn->detail); 3623 3624 /* 3625 * If the response indicates that the notifier has been aborted, 3626 * release the notifier command. 3627 */ 3628 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3629 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3630 (cn->detail == 1)) { 3631 debug(0, "notifier exiting"); 3632 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3633 ciss_release_request(cr); 3634 sc->ciss_periodic_notify = NULL; 3635 wakeup(&sc->ciss_periodic_notify); 3636 } else { 3637 /* Handle notify events in a kernel thread */ 3638 ciss_enqueue_notify(cr); 3639 sc->ciss_periodic_notify = NULL; 3640 wakeup(&sc->ciss_periodic_notify); 3641 wakeup(&sc->ciss_notify); 3642 } 3643 /* 3644 * Send a new notify event command, if we're not aborting. 3645 */ 3646 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3647 ciss_notify_event(sc); 3648 } 3649 } 3650 3651 /************************************************************************ 3652 * Abort the Notify Event chain. 3653 * 3654 * Note that we can't just abort the command in progress; we have to 3655 * explicitly issue an Abort Notify Event command in order for the 3656 * adapter to clean up correctly. 3657 * 3658 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3659 * the chain will not restart itself. 3660 */ 3661 static int 3662 ciss_notify_abort(struct ciss_softc *sc) 3663 { 3664 struct ciss_request *cr; 3665 struct ciss_command *cc; 3666 struct ciss_notify_cdb *cnc; 3667 int error, command_status, scsi_status; 3668 3669 debug_called(1); 3670 3671 cr = NULL; 3672 error = 0; 3673 3674 /* verify that there's an outstanding command */ 3675 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3676 goto out; 3677 3678 /* get a command to issue the abort with */ 3679 if ((error = ciss_get_request(sc, &cr))) 3680 goto out; 3681 3682 /* get a buffer for the result */ 3683 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3684 debug(0, "can't get notify event request buffer"); 3685 error = ENOMEM; 3686 goto out; 3687 } 3688 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3689 3690 /* build the CDB */ 3691 cc = CISS_FIND_COMMAND(cr); 3692 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3693 cc->header.address.physical.bus = 0; 3694 cc->header.address.physical.target = 0; 3695 cc->cdb.cdb_length = sizeof(*cnc); 3696 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3697 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3698 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3699 cc->cdb.timeout = 0; /* no timeout, we hope */ 3700 3701 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3702 bzero(cnc, sizeof(*cnc)); 3703 cnc->opcode = CISS_OPCODE_WRITE; 3704 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3705 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3706 3707 ciss_print_request(cr); 3708 3709 /* 3710 * Submit the request and wait for it to complete. 3711 */ 3712 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3713 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3714 goto out; 3715 } 3716 3717 /* 3718 * Check response. 3719 */ 3720 ciss_report_request(cr, &command_status, &scsi_status); 3721 switch(command_status) { 3722 case CISS_CMD_STATUS_SUCCESS: 3723 break; 3724 case CISS_CMD_STATUS_INVALID_COMMAND: 3725 /* 3726 * Some older adapters don't support the CISS version of this 3727 * command. Fall back to using the BMIC version. 3728 */ 3729 error = ciss_notify_abort_bmic(sc); 3730 if (error != 0) 3731 goto out; 3732 break; 3733 3734 case CISS_CMD_STATUS_TARGET_STATUS: 3735 /* 3736 * This can happen if the adapter thinks there wasn't an outstanding 3737 * Notify Event command but we did. We clean up here. 3738 */ 3739 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3740 if (sc->ciss_periodic_notify != NULL) 3741 ciss_release_request(sc->ciss_periodic_notify); 3742 error = 0; 3743 goto out; 3744 } 3745 /* FALLTHROUGH */ 3746 3747 default: 3748 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3749 ciss_name_command_status(command_status)); 3750 error = EIO; 3751 goto out; 3752 } 3753 3754 /* 3755 * Sleep waiting for the notifier command to complete. Note 3756 * that if it doesn't, we may end up in a bad situation, since 3757 * the adapter may deliver it later. Also note that the adapter 3758 * requires the Notify Event command to be cancelled in order to 3759 * maintain internal bookkeeping. 3760 */ 3761 while (sc->ciss_periodic_notify != NULL) { 3762 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3763 if (error == EWOULDBLOCK) { 3764 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3765 break; 3766 } 3767 } 3768 3769 out: 3770 /* release the cancel request */ 3771 if (cr != NULL) { 3772 if (cr->cr_data != NULL) 3773 free(cr->cr_data, CISS_MALLOC_CLASS); 3774 ciss_release_request(cr); 3775 } 3776 if (error == 0) 3777 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3778 return(error); 3779 } 3780 3781 /************************************************************************ 3782 * Abort the Notify Event chain using a BMIC command. 3783 */ 3784 static int 3785 ciss_notify_abort_bmic(struct ciss_softc *sc) 3786 { 3787 struct ciss_request *cr; 3788 int error, command_status; 3789 3790 debug_called(1); 3791 3792 cr = NULL; 3793 error = 0; 3794 3795 /* verify that there's an outstanding command */ 3796 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3797 goto out; 3798 3799 /* 3800 * Build a BMIC command to cancel the Notify on Event command. 3801 * 3802 * Note that we are sending a CISS opcode here. Odd. 3803 */ 3804 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3805 NULL, 0)) != 0) 3806 goto out; 3807 3808 /* 3809 * Submit the request and wait for it to complete. 3810 */ 3811 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3812 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3813 goto out; 3814 } 3815 3816 /* 3817 * Check response. 3818 */ 3819 ciss_report_request(cr, &command_status, NULL); 3820 switch(command_status) { 3821 case CISS_CMD_STATUS_SUCCESS: 3822 break; 3823 default: 3824 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3825 ciss_name_command_status(command_status)); 3826 error = EIO; 3827 goto out; 3828 } 3829 3830 out: 3831 if (cr != NULL) 3832 ciss_release_request(cr); 3833 return(error); 3834 } 3835 3836 /************************************************************************ 3837 * Handle rescanning all the logical volumes when a notify event 3838 * causes the drives to come online or offline. 3839 */ 3840 static void 3841 ciss_notify_rescan_logical(struct ciss_softc *sc) 3842 { 3843 struct ciss_lun_report *cll; 3844 struct ciss_ldrive *ld; 3845 int i, j, ndrives; 3846 3847 /* 3848 * We must rescan all logical volumes to get the right logical 3849 * drive address. 3850 */ 3851 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3852 CISS_MAX_LOGICAL); 3853 if (cll == NULL) 3854 return; 3855 3856 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3857 3858 /* 3859 * Delete any of the drives which were destroyed by the 3860 * firmware. 3861 */ 3862 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3863 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3864 ld = &sc->ciss_logical[i][j]; 3865 3866 if (ld->cl_update == 0) 3867 continue; 3868 3869 if (ld->cl_status != CISS_LD_ONLINE) { 3870 ciss_cam_rescan_target(sc, i, j); 3871 ld->cl_update = 0; 3872 if (ld->cl_ldrive) 3873 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3874 if (ld->cl_lstatus) 3875 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3876 3877 ld->cl_ldrive = NULL; 3878 ld->cl_lstatus = NULL; 3879 } 3880 } 3881 } 3882 3883 /* 3884 * Scan for new drives. 3885 */ 3886 for (i = 0; i < ndrives; i++) { 3887 int bus, target; 3888 3889 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3890 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3891 ld = &sc->ciss_logical[bus][target]; 3892 3893 if (ld->cl_update == 0) 3894 continue; 3895 3896 ld->cl_update = 0; 3897 ld->cl_address = cll->lun[i]; 3898 ld->cl_controller = &sc->ciss_controllers[bus]; 3899 if (ciss_identify_logical(sc, ld) == 0) { 3900 ciss_cam_rescan_target(sc, bus, target); 3901 } 3902 } 3903 free(cll, CISS_MALLOC_CLASS); 3904 } 3905 3906 /************************************************************************ 3907 * Handle a notify event relating to the status of a logical drive. 3908 * 3909 * XXX need to be able to defer some of these to properly handle 3910 * calling the "ID Physical drive" command, unless the 'extended' 3911 * drive IDs are always in BIG_MAP format. 3912 */ 3913 static void 3914 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3915 { 3916 struct ciss_ldrive *ld; 3917 int ostatus, bus, target; 3918 3919 debug_called(2); 3920 3921 bus = cn->device.physical.bus; 3922 target = cn->data.logical_status.logical_drive; 3923 ld = &sc->ciss_logical[bus][target]; 3924 3925 switch (cn->subclass) { 3926 case CISS_NOTIFY_LOGICAL_STATUS: 3927 switch (cn->detail) { 3928 case 0: 3929 ciss_name_device(sc, bus, target); 3930 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3931 cn->data.logical_status.logical_drive, ld->cl_name, 3932 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3933 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3934 cn->data.logical_status.spare_state, 3935 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3936 3937 /* 3938 * Update our idea of the drive's status. 3939 */ 3940 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3941 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3942 if (ld->cl_lstatus != NULL) 3943 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3944 3945 /* 3946 * Have CAM rescan the drive if its status has changed. 3947 */ 3948 if (ostatus != ld->cl_status) { 3949 ld->cl_update = 1; 3950 ciss_notify_rescan_logical(sc); 3951 } 3952 3953 break; 3954 3955 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3956 ciss_name_device(sc, bus, target); 3957 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3958 cn->data.logical_status.logical_drive, ld->cl_name); 3959 ciss_accept_media(sc, ld); 3960 3961 ld->cl_update = 1; 3962 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3963 ciss_notify_rescan_logical(sc); 3964 break; 3965 3966 case 2: 3967 case 3: 3968 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3969 cn->data.rebuild_aborted.logical_drive, 3970 ld->cl_name, 3971 (cn->detail == 2) ? "read" : "write"); 3972 break; 3973 } 3974 break; 3975 3976 case CISS_NOTIFY_LOGICAL_ERROR: 3977 if (cn->detail == 0) { 3978 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3979 cn->data.io_error.logical_drive, 3980 ld->cl_name, 3981 cn->data.io_error.failure_bus, 3982 cn->data.io_error.failure_drive); 3983 /* XXX should we take the drive down at this point, or will we be told? */ 3984 } 3985 break; 3986 3987 case CISS_NOTIFY_LOGICAL_SURFACE: 3988 if (cn->detail == 0) 3989 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3990 cn->data.consistency_completed.logical_drive, 3991 ld->cl_name); 3992 break; 3993 } 3994 } 3995 3996 /************************************************************************ 3997 * Handle a notify event relating to the status of a physical drive. 3998 */ 3999 static void 4000 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4001 { 4002 } 4003 4004 /************************************************************************ 4005 * Handle a notify event relating to the status of a physical drive. 4006 */ 4007 static void 4008 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4009 { 4010 struct ciss_lun_report *cll = NULL; 4011 int bus, target; 4012 4013 switch (cn->subclass) { 4014 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4015 case CISS_NOTIFY_HOTPLUG_NONDISK: 4016 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4017 target = 4018 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4019 4020 if (cn->detail == 0) { 4021 /* 4022 * Mark the device offline so that it'll start producing selection 4023 * timeouts to the upper layer. 4024 */ 4025 if ((bus >= 0) && (target >= 0)) 4026 sc->ciss_physical[bus][target].cp_online = 0; 4027 } else { 4028 /* 4029 * Rescan the physical lun list for new items 4030 */ 4031 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4032 CISS_MAX_PHYSICAL); 4033 if (cll == NULL) { 4034 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4035 break; 4036 } 4037 ciss_filter_physical(sc, cll); 4038 } 4039 break; 4040 4041 default: 4042 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4043 return; 4044 } 4045 4046 if (cll != NULL) 4047 free(cll, CISS_MALLOC_CLASS); 4048 } 4049 4050 /************************************************************************ 4051 * Handle deferred processing of notify events. Notify events may need 4052 * sleep which is unsafe during an interrupt. 4053 */ 4054 static void 4055 ciss_notify_thread(void *arg) 4056 { 4057 struct ciss_softc *sc; 4058 struct ciss_request *cr; 4059 struct ciss_notify *cn; 4060 4061 sc = (struct ciss_softc *)arg; 4062 #if __FreeBSD_version >= 500000 4063 mtx_lock(&sc->ciss_mtx); 4064 #endif 4065 4066 for (;;) { 4067 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4068 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4069 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4070 } 4071 4072 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4073 break; 4074 4075 cr = ciss_dequeue_notify(sc); 4076 4077 if (cr == NULL) 4078 panic("cr null"); 4079 cn = (struct ciss_notify *)cr->cr_data; 4080 4081 switch (cn->class) { 4082 case CISS_NOTIFY_HOTPLUG: 4083 ciss_notify_hotplug(sc, cn); 4084 break; 4085 case CISS_NOTIFY_LOGICAL: 4086 ciss_notify_logical(sc, cn); 4087 break; 4088 case CISS_NOTIFY_PHYSICAL: 4089 ciss_notify_physical(sc, cn); 4090 break; 4091 } 4092 4093 ciss_release_request(cr); 4094 4095 } 4096 sc->ciss_notify_thread = NULL; 4097 wakeup(&sc->ciss_notify_thread); 4098 4099 #if __FreeBSD_version >= 500000 4100 mtx_unlock(&sc->ciss_mtx); 4101 #endif 4102 kproc_exit(0); 4103 } 4104 4105 /************************************************************************ 4106 * Start the notification kernel thread. 4107 */ 4108 static void 4109 ciss_spawn_notify_thread(struct ciss_softc *sc) 4110 { 4111 4112 #if __FreeBSD_version > 500005 4113 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4114 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4115 device_get_unit(sc->ciss_dev))) 4116 #else 4117 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4118 &sc->ciss_notify_thread, "ciss_notify%d", 4119 device_get_unit(sc->ciss_dev))) 4120 #endif 4121 panic("Could not create notify thread\n"); 4122 } 4123 4124 /************************************************************************ 4125 * Kill the notification kernel thread. 4126 */ 4127 static void 4128 ciss_kill_notify_thread(struct ciss_softc *sc) 4129 { 4130 4131 if (sc->ciss_notify_thread == NULL) 4132 return; 4133 4134 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4135 wakeup(&sc->ciss_notify); 4136 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4137 } 4138 4139 /************************************************************************ 4140 * Print a request. 4141 */ 4142 static void 4143 ciss_print_request(struct ciss_request *cr) 4144 { 4145 struct ciss_softc *sc; 4146 struct ciss_command *cc; 4147 int i; 4148 4149 sc = cr->cr_sc; 4150 cc = CISS_FIND_COMMAND(cr); 4151 4152 ciss_printf(sc, "REQUEST @ %p\n", cr); 4153 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4154 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4155 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4156 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4157 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4158 switch(cc->header.address.mode.mode) { 4159 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4160 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4161 ciss_printf(sc, " physical bus %d target %d\n", 4162 cc->header.address.physical.bus, cc->header.address.physical.target); 4163 break; 4164 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4165 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4166 break; 4167 } 4168 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4169 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4170 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4171 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4172 cc->cdb.cdb_length, 4173 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4174 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4175 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4176 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4177 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4178 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4179 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4180 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4181 4182 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4183 /* XXX print error info */ 4184 } else { 4185 /* since we don't use chained s/g, don't support it here */ 4186 for (i = 0; i < cc->header.sg_in_list; i++) { 4187 if ((i % 4) == 0) 4188 ciss_printf(sc, " "); 4189 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4190 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4191 printf("\n"); 4192 } 4193 } 4194 } 4195 4196 /************************************************************************ 4197 * Print information about the status of a logical drive. 4198 */ 4199 static void 4200 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4201 { 4202 int bus, target, i; 4203 4204 if (ld->cl_lstatus == NULL) { 4205 printf("does not exist\n"); 4206 return; 4207 } 4208 4209 /* print drive status */ 4210 switch(ld->cl_lstatus->status) { 4211 case CISS_LSTATUS_OK: 4212 printf("online\n"); 4213 break; 4214 case CISS_LSTATUS_INTERIM_RECOVERY: 4215 printf("in interim recovery mode\n"); 4216 break; 4217 case CISS_LSTATUS_READY_RECOVERY: 4218 printf("ready to begin recovery\n"); 4219 break; 4220 case CISS_LSTATUS_RECOVERING: 4221 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4222 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4223 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4224 bus, target, ld->cl_lstatus->blocks_to_recover); 4225 break; 4226 case CISS_LSTATUS_EXPANDING: 4227 printf("being expanded, %u blocks remaining\n", 4228 ld->cl_lstatus->blocks_to_recover); 4229 break; 4230 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4231 printf("queued for expansion\n"); 4232 break; 4233 case CISS_LSTATUS_FAILED: 4234 printf("queued for expansion\n"); 4235 break; 4236 case CISS_LSTATUS_WRONG_PDRIVE: 4237 printf("wrong physical drive inserted\n"); 4238 break; 4239 case CISS_LSTATUS_MISSING_PDRIVE: 4240 printf("missing a needed physical drive\n"); 4241 break; 4242 case CISS_LSTATUS_BECOMING_READY: 4243 printf("becoming ready\n"); 4244 break; 4245 } 4246 4247 /* print failed physical drives */ 4248 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4249 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4250 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4251 if (bus == -1) 4252 continue; 4253 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4254 ld->cl_lstatus->drive_failure_map[i]); 4255 } 4256 } 4257 4258 #ifdef CISS_DEBUG 4259 /************************************************************************ 4260 * Print information about the controller/driver. 4261 */ 4262 static void 4263 ciss_print_adapter(struct ciss_softc *sc) 4264 { 4265 int i, j; 4266 4267 ciss_printf(sc, "ADAPTER:\n"); 4268 for (i = 0; i < CISSQ_COUNT; i++) { 4269 ciss_printf(sc, "%s %d/%d\n", 4270 i == 0 ? "free" : 4271 i == 1 ? "busy" : "complete", 4272 sc->ciss_qstat[i].q_length, 4273 sc->ciss_qstat[i].q_max); 4274 } 4275 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4276 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4277 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4278 4279 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4280 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4281 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4282 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4283 } 4284 } 4285 4286 /* XXX Should physical drives be printed out here? */ 4287 4288 for (i = 1; i < sc->ciss_max_requests; i++) 4289 ciss_print_request(sc->ciss_request + i); 4290 } 4291 4292 /* DDB hook */ 4293 static void 4294 ciss_print0(void) 4295 { 4296 struct ciss_softc *sc; 4297 4298 sc = devclass_get_softc(devclass_find("ciss"), 0); 4299 if (sc == NULL) { 4300 printf("no ciss controllers\n"); 4301 } else { 4302 ciss_print_adapter(sc); 4303 } 4304 } 4305 #endif 4306 4307 /************************************************************************ 4308 * Return a name for a logical drive status value. 4309 */ 4310 static const char * 4311 ciss_name_ldrive_status(int status) 4312 { 4313 switch (status) { 4314 case CISS_LSTATUS_OK: 4315 return("OK"); 4316 case CISS_LSTATUS_FAILED: 4317 return("failed"); 4318 case CISS_LSTATUS_NOT_CONFIGURED: 4319 return("not configured"); 4320 case CISS_LSTATUS_INTERIM_RECOVERY: 4321 return("interim recovery"); 4322 case CISS_LSTATUS_READY_RECOVERY: 4323 return("ready for recovery"); 4324 case CISS_LSTATUS_RECOVERING: 4325 return("recovering"); 4326 case CISS_LSTATUS_WRONG_PDRIVE: 4327 return("wrong physical drive inserted"); 4328 case CISS_LSTATUS_MISSING_PDRIVE: 4329 return("missing physical drive"); 4330 case CISS_LSTATUS_EXPANDING: 4331 return("expanding"); 4332 case CISS_LSTATUS_BECOMING_READY: 4333 return("becoming ready"); 4334 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4335 return("queued for expansion"); 4336 } 4337 return("unknown status"); 4338 } 4339 4340 /************************************************************************ 4341 * Return an online/offline/nonexistent value for a logical drive 4342 * status value. 4343 */ 4344 static int 4345 ciss_decode_ldrive_status(int status) 4346 { 4347 switch(status) { 4348 case CISS_LSTATUS_NOT_CONFIGURED: 4349 return(CISS_LD_NONEXISTENT); 4350 4351 case CISS_LSTATUS_OK: 4352 case CISS_LSTATUS_INTERIM_RECOVERY: 4353 case CISS_LSTATUS_READY_RECOVERY: 4354 case CISS_LSTATUS_RECOVERING: 4355 case CISS_LSTATUS_EXPANDING: 4356 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4357 return(CISS_LD_ONLINE); 4358 4359 case CISS_LSTATUS_FAILED: 4360 case CISS_LSTATUS_WRONG_PDRIVE: 4361 case CISS_LSTATUS_MISSING_PDRIVE: 4362 case CISS_LSTATUS_BECOMING_READY: 4363 default: 4364 return(CISS_LD_OFFLINE); 4365 } 4366 } 4367 4368 4369 /************************************************************************ 4370 * Return a name for a logical drive's organisation. 4371 */ 4372 static const char * 4373 ciss_name_ldrive_org(int org) 4374 { 4375 switch(org) { 4376 case CISS_LDRIVE_RAID0: 4377 return("RAID 0"); 4378 case CISS_LDRIVE_RAID1: 4379 return("RAID 1"); 4380 case CISS_LDRIVE_RAID4: 4381 return("RAID 4"); 4382 case CISS_LDRIVE_RAID5: 4383 return("RAID 5"); 4384 case CISS_LDRIVE_RAID51: 4385 return("RAID 5+1"); 4386 case CISS_LDRIVE_RAIDADG: 4387 return("RAID ADG"); 4388 } 4389 return("unkown"); 4390 } 4391 4392 /************************************************************************ 4393 * Return a name for a command status value. 4394 */ 4395 static const char * 4396 ciss_name_command_status(int status) 4397 { 4398 switch(status) { 4399 case CISS_CMD_STATUS_SUCCESS: 4400 return("success"); 4401 case CISS_CMD_STATUS_TARGET_STATUS: 4402 return("target status"); 4403 case CISS_CMD_STATUS_DATA_UNDERRUN: 4404 return("data underrun"); 4405 case CISS_CMD_STATUS_DATA_OVERRUN: 4406 return("data overrun"); 4407 case CISS_CMD_STATUS_INVALID_COMMAND: 4408 return("invalid command"); 4409 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4410 return("protocol error"); 4411 case CISS_CMD_STATUS_HARDWARE_ERROR: 4412 return("hardware error"); 4413 case CISS_CMD_STATUS_CONNECTION_LOST: 4414 return("connection lost"); 4415 case CISS_CMD_STATUS_ABORTED: 4416 return("aborted"); 4417 case CISS_CMD_STATUS_ABORT_FAILED: 4418 return("abort failed"); 4419 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4420 return("unsolicited abort"); 4421 case CISS_CMD_STATUS_TIMEOUT: 4422 return("timeout"); 4423 case CISS_CMD_STATUS_UNABORTABLE: 4424 return("unabortable"); 4425 } 4426 return("unknown status"); 4427 } 4428 4429 /************************************************************************ 4430 * Handle an open on the control device. 4431 */ 4432 static int 4433 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4434 { 4435 struct ciss_softc *sc; 4436 4437 debug_called(1); 4438 4439 sc = (struct ciss_softc *)dev->si_drv1; 4440 4441 /* we might want to veto if someone already has us open */ 4442 4443 mtx_lock(&sc->ciss_mtx); 4444 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4445 mtx_unlock(&sc->ciss_mtx); 4446 return(0); 4447 } 4448 4449 /************************************************************************ 4450 * Handle the last close on the control device. 4451 */ 4452 static int 4453 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4454 { 4455 struct ciss_softc *sc; 4456 4457 debug_called(1); 4458 4459 sc = (struct ciss_softc *)dev->si_drv1; 4460 4461 mtx_lock(&sc->ciss_mtx); 4462 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4463 mtx_unlock(&sc->ciss_mtx); 4464 return (0); 4465 } 4466 4467 /******************************************************************************** 4468 * Handle adapter-specific control operations. 4469 * 4470 * Note that the API here is compatible with the Linux driver, in order to 4471 * simplify the porting of Compaq's userland tools. 4472 */ 4473 static int 4474 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4475 { 4476 struct ciss_softc *sc; 4477 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4478 #ifdef __amd64__ 4479 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4480 IOCTL_Command_struct ioc_swab; 4481 #endif 4482 int error; 4483 4484 debug_called(1); 4485 4486 sc = (struct ciss_softc *)dev->si_drv1; 4487 error = 0; 4488 mtx_lock(&sc->ciss_mtx); 4489 4490 switch(cmd) { 4491 case CCISS_GETQSTATS: 4492 { 4493 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4494 4495 switch (cr->cs_item) { 4496 case CISSQ_FREE: 4497 case CISSQ_NOTIFY: 4498 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4499 sizeof(struct ciss_qstat)); 4500 break; 4501 default: 4502 error = ENOIOCTL; 4503 break; 4504 } 4505 4506 break; 4507 } 4508 4509 case CCISS_GETPCIINFO: 4510 { 4511 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4512 4513 pis->bus = pci_get_bus(sc->ciss_dev); 4514 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4515 pis->board_id = pci_get_devid(sc->ciss_dev); 4516 4517 break; 4518 } 4519 4520 case CCISS_GETINTINFO: 4521 { 4522 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4523 4524 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4525 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4526 4527 break; 4528 } 4529 4530 case CCISS_SETINTINFO: 4531 { 4532 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4533 4534 if ((cis->delay == 0) && (cis->count == 0)) { 4535 error = EINVAL; 4536 break; 4537 } 4538 4539 /* 4540 * XXX apparently this is only safe if the controller is idle, 4541 * we should suspend it before doing this. 4542 */ 4543 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4544 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4545 4546 if (ciss_update_config(sc)) 4547 error = EIO; 4548 4549 /* XXX resume the controller here */ 4550 break; 4551 } 4552 4553 case CCISS_GETNODENAME: 4554 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4555 sizeof(NodeName_type)); 4556 break; 4557 4558 case CCISS_SETNODENAME: 4559 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4560 sizeof(NodeName_type)); 4561 if (ciss_update_config(sc)) 4562 error = EIO; 4563 break; 4564 4565 case CCISS_GETHEARTBEAT: 4566 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4567 break; 4568 4569 case CCISS_GETBUSTYPES: 4570 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4571 break; 4572 4573 case CCISS_GETFIRMVER: 4574 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4575 sizeof(FirmwareVer_type)); 4576 break; 4577 4578 case CCISS_GETDRIVERVER: 4579 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4580 break; 4581 4582 case CCISS_REVALIDVOLS: 4583 /* 4584 * This is a bit ugly; to do it "right" we really need 4585 * to find any disks that have changed, kick CAM off them, 4586 * then rescan only these disks. It'd be nice if they 4587 * a) told us which disk(s) they were going to play with, 4588 * and b) which ones had arrived. 8( 4589 */ 4590 break; 4591 4592 #ifdef __amd64__ 4593 case CCISS_PASSTHRU32: 4594 ioc_swab.LUN_info = ioc32->LUN_info; 4595 ioc_swab.Request = ioc32->Request; 4596 ioc_swab.error_info = ioc32->error_info; 4597 ioc_swab.buf_size = ioc32->buf_size; 4598 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4599 ioc = &ioc_swab; 4600 /* FALLTHROUGH */ 4601 #endif 4602 4603 case CCISS_PASSTHRU: 4604 error = ciss_user_command(sc, ioc); 4605 break; 4606 4607 default: 4608 debug(0, "unknown ioctl 0x%lx", cmd); 4609 4610 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4611 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4612 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4613 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4614 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4615 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4616 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4617 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4618 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4619 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4620 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4621 4622 error = ENOIOCTL; 4623 break; 4624 } 4625 4626 mtx_unlock(&sc->ciss_mtx); 4627 return(error); 4628 } 4629