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: src/sys/dev/ciss/ciss.c,v 1.2.2.25 2008/06/10 18:51:05 ps Exp $ 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/device.h> 80 #include <sys/malloc.h> 81 #include <sys/kernel.h> 82 #include <sys/bus.h> 83 #include <sys/conf.h> 84 #include <sys/devicestat.h> 85 #include <sys/stat.h> 86 #include <sys/kthread.h> 87 #include <sys/queue.h> 88 #include <sys/rman.h> 89 90 #include <sys/mplock2.h> 91 92 #include <bus/cam/cam.h> 93 #include <bus/cam/cam_ccb.h> 94 #include <bus/cam/cam_periph.h> 95 #include <bus/cam/cam_sim.h> 96 #include <bus/cam/cam_xpt_sim.h> 97 #include <bus/cam/scsi/scsi_all.h> 98 #include <bus/cam/scsi/scsi_message.h> 99 100 #include <machine/clock.h> 101 #include <machine/endian.h> 102 103 #include <bus/pci/pcireg.h> 104 #include <bus/pci/pcivar.h> 105 106 #include "cissreg.h" 107 #include "cissvar.h" 108 #include "cissio.h" 109 110 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 111 112 /* pci interface */ 113 static int ciss_lookup(device_t dev); 114 static int ciss_probe(device_t dev); 115 static int ciss_attach(device_t dev); 116 static int ciss_detach(device_t dev); 117 static int ciss_shutdown(device_t dev); 118 119 /* (de)initialisation functions, control wrappers */ 120 static int ciss_init_pci(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_free(struct ciss_softc *sc); 135 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 136 static void ciss_kill_notify_thread(struct ciss_softc *sc); 137 138 /* request submission/completion */ 139 static int ciss_start(struct ciss_request *cr); 140 static void ciss_done(struct ciss_softc *sc); 141 static void ciss_intr(void *arg); 142 static void ciss_complete(struct ciss_softc *sc); 143 static int ciss_report_request(struct ciss_request *cr, int *command_status, 144 int *scsi_status); 145 static int ciss_synch_request(struct ciss_request *cr, int timeout); 146 static int ciss_poll_request(struct ciss_request *cr, int timeout); 147 static int ciss_wait_request(struct ciss_request *cr, int timeout); 148 #if 0 149 static int ciss_abort_request(struct ciss_request *cr); 150 #endif 151 152 /* request queueing */ 153 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 154 static void ciss_preen_command(struct ciss_request *cr); 155 static void ciss_release_request(struct ciss_request *cr); 156 157 /* request helpers */ 158 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 159 int opcode, void **bufp, size_t bufsize); 160 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 161 162 /* DMA map/unmap */ 163 static int ciss_map_request(struct ciss_request *cr); 164 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 165 int nseg, int error); 166 static void ciss_unmap_request(struct ciss_request *cr); 167 168 /* CAM interface */ 169 static int ciss_cam_init(struct ciss_softc *sc); 170 static void ciss_cam_rescan_target(struct ciss_softc *sc, 171 int bus, int target); 172 static void ciss_cam_rescan_all(struct ciss_softc *sc); 173 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 174 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 175 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 176 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 177 static void ciss_cam_poll(struct cam_sim *sim); 178 static void ciss_cam_complete(struct ciss_request *cr); 179 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 181 int bus, int target); 182 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 183 184 /* periodic status monitoring */ 185 static void ciss_periodic(void *arg); 186 static void ciss_notify_event(struct ciss_softc *sc); 187 static void ciss_notify_complete(struct ciss_request *cr); 188 static int ciss_notify_abort(struct ciss_softc *sc); 189 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 190 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 191 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 192 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 193 194 /* debugging output */ 195 static void ciss_print_request(struct ciss_request *cr); 196 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 197 static const char *ciss_name_ldrive_status(int status); 198 static int ciss_decode_ldrive_status(int status); 199 static const char *ciss_name_ldrive_org(int org); 200 static const char *ciss_name_command_status(int status); 201 202 /* 203 * PCI bus interface. 204 */ 205 static device_method_t ciss_methods[] = { 206 /* Device interface */ 207 DEVMETHOD(device_probe, ciss_probe), 208 DEVMETHOD(device_attach, ciss_attach), 209 DEVMETHOD(device_detach, ciss_detach), 210 DEVMETHOD(device_shutdown, ciss_shutdown), 211 { 0, 0 } 212 }; 213 214 static driver_t ciss_pci_driver = { 215 "ciss", 216 ciss_methods, 217 sizeof(struct ciss_softc) 218 }; 219 220 static devclass_t ciss_devclass; 221 222 DECLARE_DUMMY_MODULE(ciss); 223 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, NULL, NULL); 224 225 /* 226 * Control device interface. 227 */ 228 static d_open_t ciss_open; 229 static d_close_t ciss_close; 230 static d_ioctl_t ciss_ioctl; 231 232 static struct dev_ops ciss_ops = { 233 { "ciss", 0, 0 }, 234 .d_open = ciss_open, 235 .d_close = ciss_close, 236 .d_ioctl = ciss_ioctl 237 }; 238 239 /* 240 * This tunable can be set at boot time and controls whether physical devices 241 * that are marked hidden by the firmware should be exposed anyways. 242 */ 243 static unsigned int ciss_expose_hidden_physical = 0; 244 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 245 246 /************************************************************************ 247 * CISS adapters amazingly don't have a defined programming interface 248 * value. (One could say some very despairing things about PCI and 249 * people just not getting the general idea.) So we are forced to 250 * stick with matching against subvendor/subdevice, and thus have to 251 * be updated for every new CISS adapter that appears. 252 */ 253 #define CISS_BOARD_SA5 (1<<0) 254 #define CISS_BOARD_SA5B (1<<1) 255 256 static struct 257 { 258 u_int16_t subvendor; 259 u_int16_t subdevice; 260 int flags; 261 char *desc; 262 } ciss_vendor_data[] = { 263 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 264 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 265 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 266 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 267 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 268 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 269 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 270 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 271 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 272 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 273 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 274 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 275 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 276 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 277 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 278 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 280 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 281 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 282 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 286 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 287 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 288 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 291 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 292 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 293 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 294 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 295 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 296 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 297 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 298 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 299 { 0, 0, 0, NULL } 300 }; 301 302 /************************************************************************ 303 * Find a match for the device in our list of known adapters. 304 */ 305 static int 306 ciss_lookup(device_t dev) 307 { 308 int i; 309 310 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 311 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 312 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 313 return(i); 314 } 315 return(-1); 316 } 317 318 /************************************************************************ 319 * Match a known CISS adapter. 320 */ 321 static int 322 ciss_probe(device_t dev) 323 { 324 int i; 325 326 i = ciss_lookup(dev); 327 if (i != -1) { 328 device_set_desc(dev, ciss_vendor_data[i].desc); 329 return(-10); 330 } 331 return(ENOENT); 332 } 333 334 /************************************************************************ 335 * Attach the driver to this adapter. 336 */ 337 static int 338 ciss_attach(device_t dev) 339 { 340 struct ciss_softc *sc; 341 int i, error; 342 343 debug_called(1); 344 345 #ifdef CISS_DEBUG 346 /* print structure/union sizes */ 347 debug_struct(ciss_command); 348 debug_struct(ciss_header); 349 debug_union(ciss_device_address); 350 debug_struct(ciss_cdb); 351 debug_struct(ciss_report_cdb); 352 debug_struct(ciss_notify_cdb); 353 debug_struct(ciss_notify); 354 debug_struct(ciss_message_cdb); 355 debug_struct(ciss_error_info_pointer); 356 debug_struct(ciss_error_info); 357 debug_struct(ciss_sg_entry); 358 debug_struct(ciss_config_table); 359 debug_struct(ciss_bmic_cdb); 360 debug_struct(ciss_bmic_id_ldrive); 361 debug_struct(ciss_bmic_id_lstatus); 362 debug_struct(ciss_bmic_id_table); 363 debug_struct(ciss_bmic_id_pdrive); 364 debug_struct(ciss_bmic_blink_pdrive); 365 debug_struct(ciss_bmic_flush_cache); 366 debug_const(CISS_MAX_REQUESTS); 367 debug_const(CISS_MAX_LOGICAL); 368 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 369 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 370 debug_const(CISS_COMMAND_ALLOC_SIZE); 371 debug_const(CISS_COMMAND_SG_LENGTH); 372 373 debug_type(cciss_pci_info_struct); 374 debug_type(cciss_coalint_struct); 375 debug_type(cciss_coalint_struct); 376 debug_type(NodeName_type); 377 debug_type(NodeName_type); 378 debug_type(Heartbeat_type); 379 debug_type(BusTypes_type); 380 debug_type(FirmwareVer_type); 381 debug_type(DriverVer_type); 382 debug_type(IOCTL_Command_struct); 383 #endif 384 385 sc = device_get_softc(dev); 386 sc->ciss_dev = dev; 387 callout_init(&sc->ciss_periodic); 388 389 /* 390 * Work out adapter type. 391 */ 392 i = ciss_lookup(dev); 393 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 394 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 395 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 396 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 397 } else { 398 /* really an error on our part */ 399 ciss_printf(sc, "unable to determine hardware type\n"); 400 error = ENXIO; 401 goto out; 402 } 403 404 /* 405 * Do PCI-specific init. 406 */ 407 if ((error = ciss_init_pci(sc)) != 0) 408 goto out; 409 410 /* 411 * Initialise driver queues. 412 */ 413 ciss_initq_free(sc); 414 ciss_initq_busy(sc); 415 ciss_initq_complete(sc); 416 ciss_initq_notify(sc); 417 418 /* 419 * Initialise command/request pool. 420 */ 421 if ((error = ciss_init_requests(sc)) != 0) 422 goto out; 423 424 /* 425 * Get adapter information. 426 */ 427 if ((error = ciss_identify_adapter(sc)) != 0) 428 goto out; 429 430 /* 431 * Find all the physical devices. 432 */ 433 if ((error = ciss_init_physical(sc)) != 0) 434 goto out; 435 436 /* 437 * Build our private table of logical devices. 438 */ 439 if ((error = ciss_init_logical(sc)) != 0) 440 goto out; 441 442 /* 443 * Enable interrupts so that the CAM scan can complete. 444 */ 445 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 446 447 /* 448 * Initialise the CAM interface. 449 */ 450 if ((error = ciss_cam_init(sc)) != 0) 451 goto out; 452 453 /* 454 * Start the heartbeat routine and event chain. 455 */ 456 ciss_periodic(sc); 457 458 /* 459 * Create the control device. 460 */ 461 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 462 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 463 "ciss%d", device_get_unit(sc->ciss_dev)); 464 sc->ciss_dev_t->si_drv1 = sc; 465 466 /* 467 * The adapter is running; synchronous commands can now sleep 468 * waiting for an interrupt to signal completion. 469 */ 470 sc->ciss_flags |= CISS_FLAG_RUNNING; 471 472 ciss_spawn_notify_thread(sc); 473 474 error = 0; 475 out: 476 if (error != 0) 477 ciss_free(sc); 478 return(error); 479 } 480 481 /************************************************************************ 482 * Detach the driver from this adapter. 483 */ 484 static int 485 ciss_detach(device_t dev) 486 { 487 struct ciss_softc *sc = device_get_softc(dev); 488 489 debug_called(1); 490 491 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 492 return (EBUSY); 493 494 /* flush adapter cache */ 495 ciss_flush_adapter(sc); 496 497 /* release all resources */ 498 ciss_free(sc); 499 500 return(0); 501 } 502 503 /************************************************************************ 504 * Prepare adapter for system shutdown. 505 */ 506 static int 507 ciss_shutdown(device_t dev) 508 { 509 struct ciss_softc *sc = device_get_softc(dev); 510 511 debug_called(1); 512 513 /* flush adapter cache */ 514 ciss_flush_adapter(sc); 515 516 return(0); 517 } 518 519 /************************************************************************ 520 * Perform PCI-specific attachment actions. 521 */ 522 static int 523 ciss_init_pci(struct ciss_softc *sc) 524 { 525 uintptr_t cbase, csize, cofs; 526 int error; 527 528 debug_called(1); 529 530 /* 531 * Allocate register window first (we need this to find the config 532 * struct). 533 */ 534 error = ENXIO; 535 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 536 if ((sc->ciss_regs_resource = 537 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 538 0, ~0, 1, RF_ACTIVE)) == NULL) { 539 ciss_printf(sc, "can't allocate register window\n"); 540 return(ENXIO); 541 } 542 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 543 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 544 545 /* 546 * Find the BAR holding the config structure. If it's not the one 547 * we already mapped for registers, map it too. 548 */ 549 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 550 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 551 if ((sc->ciss_cfg_resource = 552 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 553 0, ~0, 1, RF_ACTIVE)) == NULL) { 554 ciss_printf(sc, "can't allocate config window\n"); 555 return(ENXIO); 556 } 557 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 558 csize = rman_get_end(sc->ciss_cfg_resource) - 559 rman_get_start(sc->ciss_cfg_resource) + 1; 560 } else { 561 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 562 csize = rman_get_end(sc->ciss_regs_resource) - 563 rman_get_start(sc->ciss_regs_resource) + 1; 564 } 565 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 566 567 /* 568 * Use the base/size/offset values we just calculated to 569 * sanity-check the config structure. If it's OK, point to it. 570 */ 571 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 572 ciss_printf(sc, "config table outside window\n"); 573 return(ENXIO); 574 } 575 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 576 debug(1, "config struct at %p", sc->ciss_cfg); 577 578 /* 579 * Validate the config structure. If we supported other transport 580 * methods, we could select amongst them at this point in time. 581 */ 582 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 583 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 584 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 585 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 586 return(ENXIO); 587 } 588 589 /* 590 * Put the board into simple mode, and tell it we're using the low 591 * 4GB of RAM. Set the default interrupt coalescing options. 592 */ 593 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 594 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 595 return(ENXIO); 596 } 597 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 598 sc->ciss_cfg->command_physlimit = 0; 599 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 600 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 601 602 #ifdef __i386__ 603 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 604 #endif 605 606 if (ciss_update_config(sc)) { 607 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 608 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 609 return(ENXIO); 610 } 611 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 612 ciss_printf(sc, 613 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 614 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 615 return(ENXIO); 616 } 617 618 /* 619 * Wait for the adapter to come ready. 620 */ 621 if ((error = ciss_wait_adapter(sc)) != 0) 622 return(error); 623 624 /* 625 * Turn off interrupts before we go routing anything. 626 */ 627 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 628 629 /* 630 * Allocate and set up our interrupt. 631 */ 632 sc->ciss_irq_rid = 0; 633 if ((sc->ciss_irq_resource = 634 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 635 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 636 ciss_printf(sc, "can't allocate interrupt\n"); 637 return(ENXIO); 638 } 639 error = bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 640 0, ciss_intr, sc, 641 &sc->ciss_intr, NULL); 642 if (error) { 643 ciss_printf(sc, "can't set up interrupt\n"); 644 return(ENXIO); 645 } 646 647 /* 648 * Allocate the parent bus DMA tag appropriate for our PCI 649 * interface. 650 * 651 * Note that "simple" adapters can only address within a 32-bit 652 * span. 653 */ 654 if (bus_dma_tag_create(NULL, /* parent */ 655 1, 0, /* alignment, boundary */ 656 BUS_SPACE_MAXADDR, /* lowaddr */ 657 BUS_SPACE_MAXADDR, /* highaddr */ 658 NULL, NULL, /* filter, filterarg */ 659 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 660 CISS_COMMAND_SG_LENGTH, /* nsegments */ 661 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 662 BUS_DMA_ALLOCNOW, /* flags */ 663 &sc->ciss_parent_dmat)) { 664 ciss_printf(sc, "can't allocate parent DMA tag\n"); 665 return(ENOMEM); 666 } 667 668 /* 669 * Create DMA tag for mapping buffers into adapter-addressable 670 * space. 671 */ 672 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 673 1, 0, /* alignment, boundary */ 674 BUS_SPACE_MAXADDR, /* lowaddr */ 675 BUS_SPACE_MAXADDR, /* highaddr */ 676 NULL, NULL, /* filter, filterarg */ 677 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 678 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 679 0, /* flags */ 680 &sc->ciss_buffer_dmat)) { 681 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 682 return(ENOMEM); 683 } 684 return(0); 685 } 686 687 /************************************************************************ 688 * Wait for the adapter to come ready. 689 */ 690 static int 691 ciss_wait_adapter(struct ciss_softc *sc) 692 { 693 int i; 694 695 debug_called(1); 696 697 /* 698 * Wait for the adapter to come ready. 699 */ 700 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 701 ciss_printf(sc, "waiting for adapter to come ready...\n"); 702 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 703 DELAY(1000000); /* one second */ 704 if (i > 30) { 705 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 706 return(EIO); 707 } 708 } 709 } 710 return(0); 711 } 712 713 /************************************************************************ 714 * Flush the adapter cache. 715 */ 716 static int 717 ciss_flush_adapter(struct ciss_softc *sc) 718 { 719 struct ciss_request *cr; 720 struct ciss_bmic_flush_cache *cbfc; 721 int error, command_status; 722 723 debug_called(1); 724 725 cr = NULL; 726 cbfc = NULL; 727 728 /* 729 * Build a BMIC request to flush the cache. We don't disable 730 * it, as we may be going to do more I/O (eg. we are emulating 731 * the Synchronise Cache command). 732 */ 733 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 734 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 735 (void *)&cbfc, sizeof(*cbfc))) != 0) 736 goto out; 737 738 /* 739 * Submit the request and wait for it to complete. 740 */ 741 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 742 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 743 goto out; 744 } 745 746 /* 747 * Check response. 748 */ 749 ciss_report_request(cr, &command_status, NULL); 750 switch(command_status) { 751 case CISS_CMD_STATUS_SUCCESS: 752 break; 753 default: 754 ciss_printf(sc, "error flushing cache (%s)\n", 755 ciss_name_command_status(command_status)); 756 error = EIO; 757 goto out; 758 } 759 760 out: 761 if (cbfc != NULL) 762 kfree(cbfc, CISS_MALLOC_CLASS); 763 if (cr != NULL) 764 ciss_release_request(cr); 765 return(error); 766 } 767 768 /************************************************************************ 769 * Allocate memory for the adapter command structures, initialise 770 * the request structures. 771 * 772 * Note that the entire set of commands are allocated in a single 773 * contiguous slab. 774 */ 775 static int 776 ciss_init_requests(struct ciss_softc *sc) 777 { 778 struct ciss_request *cr; 779 int i; 780 781 debug_called(1); 782 783 /* 784 * Calculate the number of request structures/commands we are 785 * going to provide for this adapter. 786 */ 787 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 788 789 if (bootverbose) 790 ciss_printf(sc, "using %d of %d available commands\n", 791 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 792 793 /* 794 * Create the DMA tag for commands. 795 */ 796 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 797 1, 0, /* alignment, boundary */ 798 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 799 BUS_SPACE_MAXADDR, /* highaddr */ 800 NULL, NULL, /* filter, filterarg */ 801 CISS_COMMAND_ALLOC_SIZE * 802 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 803 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 804 BUS_DMA_ALLOCNOW, /* flags */ 805 &sc->ciss_command_dmat)) { 806 ciss_printf(sc, "can't allocate command DMA tag\n"); 807 return(ENOMEM); 808 } 809 /* 810 * Allocate memory and make it available for DMA. 811 */ 812 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 813 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 814 ciss_printf(sc, "can't allocate command memory\n"); 815 return(ENOMEM); 816 } 817 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 818 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 819 ciss_command_map_helper, sc, 0); 820 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 821 822 /* 823 * Set up the request and command structures, push requests onto 824 * the free queue. 825 */ 826 for (i = 1; i < sc->ciss_max_requests; i++) { 827 cr = &sc->ciss_request[i]; 828 cr->cr_sc = sc; 829 cr->cr_tag = i; 830 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 831 ciss_enqueue_free(cr); 832 } 833 return(0); 834 } 835 836 static void 837 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 838 { 839 struct ciss_softc *sc = (struct ciss_softc *)arg; 840 841 sc->ciss_command_phys = segs->ds_addr; 842 } 843 844 /************************************************************************ 845 * Identify the adapter, print some information about it. 846 */ 847 static int 848 ciss_identify_adapter(struct ciss_softc *sc) 849 { 850 struct ciss_request *cr; 851 int error, command_status; 852 853 debug_called(1); 854 855 cr = NULL; 856 857 /* 858 * Get a request, allocate storage for the adapter data. 859 */ 860 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 861 (void *)&sc->ciss_id, 862 sizeof(*sc->ciss_id))) != 0) 863 goto out; 864 865 /* 866 * Submit the request and wait for it to complete. 867 */ 868 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 869 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 870 goto out; 871 } 872 873 /* 874 * Check response. 875 */ 876 ciss_report_request(cr, &command_status, NULL); 877 switch(command_status) { 878 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 879 break; 880 case CISS_CMD_STATUS_DATA_UNDERRUN: 881 case CISS_CMD_STATUS_DATA_OVERRUN: 882 ciss_printf(sc, "data over/underrun reading adapter information\n"); 883 default: 884 ciss_printf(sc, "error reading adapter information (%s)\n", 885 ciss_name_command_status(command_status)); 886 error = EIO; 887 goto out; 888 } 889 890 /* sanity-check reply */ 891 if (!sc->ciss_id->big_map_supported) { 892 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 893 error = ENXIO; 894 goto out; 895 } 896 897 #if 1 898 /* XXX later revisions may not need this */ 899 /* Apparently we still need this */ 900 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 901 #endif 902 903 /* XXX only really required for old 5300 adapters? */ 904 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 905 906 /* print information */ 907 if (bootverbose) { 908 #if 0 /* XXX proxy volumes??? */ 909 ciss_printf(sc, " %d logical drive%s configured\n", 910 sc->ciss_id->configured_logical_drives, 911 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 912 #endif 913 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 914 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 915 916 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 917 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 918 ciss_printf(sc, " supported I/O methods 0x%b\n", 919 sc->ciss_cfg->supported_methods, 920 "\20\1READY\2simple\3performant\4MEMQ\n"); 921 ciss_printf(sc, " active I/O method 0x%b\n", 922 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 923 ciss_printf(sc, " 4G page base 0x%08x\n", 924 sc->ciss_cfg->command_physlimit); 925 ciss_printf(sc, " interrupt coalesce delay %dus\n", 926 sc->ciss_cfg->interrupt_coalesce_delay); 927 ciss_printf(sc, " interrupt coalesce count %d\n", 928 sc->ciss_cfg->interrupt_coalesce_count); 929 ciss_printf(sc, " max outstanding commands %d\n", 930 sc->ciss_cfg->max_outstanding_commands); 931 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 932 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 933 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 934 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 935 } 936 937 out: 938 if (error) { 939 if (sc->ciss_id != NULL) { 940 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 941 sc->ciss_id = NULL; 942 } 943 } 944 if (cr != NULL) 945 ciss_release_request(cr); 946 return(error); 947 } 948 949 /************************************************************************ 950 * Helper routine for generating a list of logical and physical luns. 951 */ 952 static struct ciss_lun_report * 953 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 954 { 955 struct ciss_request *cr; 956 struct ciss_command *cc; 957 struct ciss_report_cdb *crc; 958 struct ciss_lun_report *cll; 959 int command_status; 960 int report_size; 961 int error = 0; 962 963 debug_called(1); 964 965 cr = NULL; 966 cll = NULL; 967 968 /* 969 * Get a request, allocate storage for the address list. 970 */ 971 if ((error = ciss_get_request(sc, &cr)) != 0) 972 goto out; 973 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 974 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 975 976 /* 977 * Build the Report Logical/Physical LUNs command. 978 */ 979 cc = CISS_FIND_COMMAND(cr); 980 cr->cr_data = cll; 981 cr->cr_length = report_size; 982 cr->cr_flags = CISS_REQ_DATAIN; 983 984 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 985 cc->header.address.physical.bus = 0; 986 cc->header.address.physical.target = 0; 987 cc->cdb.cdb_length = sizeof(*crc); 988 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 989 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 990 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 991 cc->cdb.timeout = 30; /* XXX better suggestions? */ 992 993 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 994 bzero(crc, sizeof(*crc)); 995 crc->opcode = opcode; 996 crc->length = htonl(report_size); /* big-endian field */ 997 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 998 999 /* 1000 * Submit the request and wait for it to complete. (timeout 1001 * here should be much greater than above) 1002 */ 1003 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1004 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1005 goto out; 1006 } 1007 1008 /* 1009 * Check response. Note that data over/underrun is OK. 1010 */ 1011 ciss_report_request(cr, &command_status, NULL); 1012 switch(command_status) { 1013 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1014 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1015 break; 1016 case CISS_CMD_STATUS_DATA_OVERRUN: 1017 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1018 CISS_MAX_LOGICAL); 1019 break; 1020 default: 1021 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1022 ciss_name_command_status(command_status)); 1023 error = EIO; 1024 goto out; 1025 } 1026 ciss_release_request(cr); 1027 cr = NULL; 1028 1029 out: 1030 if (cr != NULL) 1031 ciss_release_request(cr); 1032 if (error && cll != NULL) { 1033 kfree(cll, CISS_MALLOC_CLASS); 1034 cll = NULL; 1035 } 1036 return(cll); 1037 } 1038 1039 /************************************************************************ 1040 * Find logical drives on the adapter. 1041 */ 1042 static int 1043 ciss_init_logical(struct ciss_softc *sc) 1044 { 1045 struct ciss_lun_report *cll; 1046 int error = 0, i, j; 1047 int ndrives; 1048 1049 debug_called(1); 1050 1051 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1052 CISS_MAX_LOGICAL); 1053 if (cll == NULL) { 1054 error = ENXIO; 1055 goto out; 1056 } 1057 1058 /* sanity-check reply */ 1059 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1060 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1061 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1062 ndrives, CISS_MAX_LOGICAL); 1063 error = ENXIO; 1064 goto out; 1065 } 1066 1067 /* 1068 * Save logical drive information. 1069 */ 1070 if (bootverbose) { 1071 ciss_printf(sc, "%d logical drive%s\n", 1072 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1073 } 1074 1075 sc->ciss_logical = 1076 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1077 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1078 1079 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1080 sc->ciss_logical[i] = 1081 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1082 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1083 1084 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1085 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1086 } 1087 1088 1089 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1090 if (i < ndrives) { 1091 struct ciss_ldrive *ld; 1092 int bus, target; 1093 1094 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1095 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1096 ld = &sc->ciss_logical[bus][target]; 1097 1098 ld->cl_address = cll->lun[i]; 1099 ld->cl_controller = &sc->ciss_controllers[bus]; 1100 if (ciss_identify_logical(sc, ld) != 0) 1101 continue; 1102 /* 1103 * If the drive has had media exchanged, we should bring it online. 1104 */ 1105 if (ld->cl_lstatus->media_exchanged) 1106 ciss_accept_media(sc, ld); 1107 1108 } 1109 } 1110 1111 out: 1112 if (cll != NULL) 1113 kfree(cll, CISS_MALLOC_CLASS); 1114 return(error); 1115 } 1116 1117 static int 1118 ciss_init_physical(struct ciss_softc *sc) 1119 { 1120 struct ciss_lun_report *cll; 1121 int error = 0, i; 1122 int nphys; 1123 int bus, target; 1124 1125 debug_called(1); 1126 1127 bus = 0; 1128 target = 0; 1129 1130 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1131 CISS_MAX_PHYSICAL); 1132 if (cll == NULL) { 1133 error = ENXIO; 1134 goto out; 1135 } 1136 1137 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1138 1139 if (bootverbose) { 1140 ciss_printf(sc, "%d physical device%s\n", 1141 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1142 } 1143 1144 /* 1145 * Figure out the bus mapping. 1146 * Logical buses include both the local logical bus for local arrays and 1147 * proxy buses for remote arrays. Physical buses are numbered by the 1148 * controller and represent physical buses that hold physical devices. 1149 * We shift these bus numbers so that everything fits into a single flat 1150 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1151 * numbers, and the physical bus numbers are shifted to be above that. 1152 * This results in the various driver arrays being indexed as follows: 1153 * 1154 * ciss_controllers[] - indexed by logical bus 1155 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1156 * being shifted by 32. 1157 * ciss_logical[][] - indexed by logical bus 1158 * ciss_physical[][] - indexed by physical bus 1159 * 1160 * XXX This is getting more and more hackish. CISS really doesn't play 1161 * well with a standard SCSI model; devices are addressed via magic 1162 * cookies, not via b/t/l addresses. Since there is no way to store 1163 * the cookie in the CAM device object, we have to keep these lookup 1164 * tables handy so that the devices can be found quickly at the cost 1165 * of wasting memory and having a convoluted lookup scheme. This 1166 * driver should probably be converted to block interface. 1167 */ 1168 /* 1169 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1170 * controller. A proxy controller is another physical controller 1171 * behind the primary PCI controller. We need to know about this 1172 * so that BMIC commands can be properly targeted. There can be 1173 * proxy controllers attached to a single PCI controller, so 1174 * find the highest numbered one so the array can be properly 1175 * sized. 1176 */ 1177 sc->ciss_max_logical_bus = 1; 1178 for (i = 0; i < nphys; i++) { 1179 if (cll->lun[i].physical.extra_address == 0) { 1180 bus = cll->lun[i].physical.bus; 1181 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1182 } else { 1183 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1184 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1185 } 1186 } 1187 1188 sc->ciss_controllers = 1189 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1190 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1191 1192 /* setup a map of controller addresses */ 1193 for (i = 0; i < nphys; i++) { 1194 if (cll->lun[i].physical.extra_address == 0) { 1195 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1196 } 1197 } 1198 1199 sc->ciss_physical = 1200 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1201 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1202 1203 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1204 sc->ciss_physical[i] = 1205 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1206 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1207 } 1208 1209 ciss_filter_physical(sc, cll); 1210 1211 out: 1212 if (cll != NULL) 1213 kfree(cll, CISS_MALLOC_CLASS); 1214 1215 return(error); 1216 } 1217 1218 static int 1219 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1220 { 1221 u_int32_t ea; 1222 int i, nphys; 1223 int bus, target; 1224 1225 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1226 for (i = 0; i < nphys; i++) { 1227 if (cll->lun[i].physical.extra_address == 0) 1228 continue; 1229 1230 /* 1231 * Filter out devices that we don't want. Level 3 LUNs could 1232 * probably be supported, but the docs don't give enough of a 1233 * hint to know how. 1234 * 1235 * The mode field of the physical address is likely set to have 1236 * hard disks masked out. Honor it unless the user has overridden 1237 * us with the tunable. We also munge the inquiry data for these 1238 * disks so that they only show up as passthrough devices. Keeping 1239 * them visible in this fashion is useful for doing things like 1240 * flashing firmware. 1241 */ 1242 ea = cll->lun[i].physical.extra_address; 1243 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1244 (CISS_EXTRA_MODE2(ea) == 0x3)) 1245 continue; 1246 if ((ciss_expose_hidden_physical == 0) && 1247 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1248 continue; 1249 1250 /* 1251 * Note: CISS firmware numbers physical busses starting at '1', not 1252 * '0'. This numbering is internal to the firmware and is only 1253 * used as a hint here. 1254 */ 1255 bus = CISS_EXTRA_BUS2(ea) - 1; 1256 target = CISS_EXTRA_TARGET2(ea); 1257 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1258 sc->ciss_physical[bus][target].cp_online = 1; 1259 } 1260 1261 return (0); 1262 } 1263 1264 static int 1265 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1266 { 1267 struct ciss_request *cr; 1268 struct ciss_command *cc; 1269 struct scsi_inquiry *inq; 1270 int error; 1271 int command_status; 1272 1273 cr = NULL; 1274 1275 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1276 1277 if ((error = ciss_get_request(sc, &cr)) != 0) 1278 goto out; 1279 1280 cc = CISS_FIND_COMMAND(cr); 1281 cr->cr_data = &ld->cl_geometry; 1282 cr->cr_length = sizeof(ld->cl_geometry); 1283 cr->cr_flags = CISS_REQ_DATAIN; 1284 1285 cc->header.address = ld->cl_address; 1286 cc->cdb.cdb_length = 6; 1287 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1288 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1289 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1290 cc->cdb.timeout = 30; 1291 1292 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1293 inq->opcode = INQUIRY; 1294 inq->byte2 = SI_EVPD; 1295 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1296 inq->length = sizeof(ld->cl_geometry); 1297 1298 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1299 ciss_printf(sc, "error getting geometry (%d)\n", error); 1300 goto out; 1301 } 1302 1303 ciss_report_request(cr, &command_status, NULL); 1304 switch(command_status) { 1305 case CISS_CMD_STATUS_SUCCESS: 1306 case CISS_CMD_STATUS_DATA_UNDERRUN: 1307 break; 1308 case CISS_CMD_STATUS_DATA_OVERRUN: 1309 ciss_printf(sc, "WARNING: Data overrun\n"); 1310 break; 1311 default: 1312 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1313 ciss_name_command_status(command_status)); 1314 break; 1315 } 1316 1317 out: 1318 if (cr != NULL) 1319 ciss_release_request(cr); 1320 return(error); 1321 } 1322 /************************************************************************ 1323 * Identify a logical drive, initialise state related to it. 1324 */ 1325 static int 1326 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1327 { 1328 struct ciss_request *cr; 1329 struct ciss_command *cc; 1330 struct ciss_bmic_cdb *cbc; 1331 int error, command_status; 1332 1333 debug_called(1); 1334 1335 cr = NULL; 1336 1337 /* 1338 * Build a BMIC request to fetch the drive ID. 1339 */ 1340 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1341 (void *)&ld->cl_ldrive, 1342 sizeof(*ld->cl_ldrive))) != 0) 1343 goto out; 1344 cc = CISS_FIND_COMMAND(cr); 1345 cc->header.address = *ld->cl_controller; /* target controller */ 1346 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1347 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1348 1349 /* 1350 * Submit the request and wait for it to complete. 1351 */ 1352 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1353 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1354 goto out; 1355 } 1356 1357 /* 1358 * Check response. 1359 */ 1360 ciss_report_request(cr, &command_status, NULL); 1361 switch(command_status) { 1362 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1363 break; 1364 case CISS_CMD_STATUS_DATA_UNDERRUN: 1365 case CISS_CMD_STATUS_DATA_OVERRUN: 1366 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1367 default: 1368 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1369 ciss_name_command_status(command_status)); 1370 error = EIO; 1371 goto out; 1372 } 1373 ciss_release_request(cr); 1374 cr = NULL; 1375 1376 /* 1377 * Build a CISS BMIC command to get the logical drive status. 1378 */ 1379 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1380 goto out; 1381 1382 /* 1383 * Get the logical drive geometry. 1384 */ 1385 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1386 goto out; 1387 1388 /* 1389 * Print the drive's basic characteristics. 1390 */ 1391 if (bootverbose) { 1392 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1393 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1394 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1395 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1396 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1397 ld->cl_ldrive->block_size)); 1398 1399 ciss_print_ldrive(sc, ld); 1400 } 1401 out: 1402 if (error != 0) { 1403 /* make the drive not-exist */ 1404 ld->cl_status = CISS_LD_NONEXISTENT; 1405 if (ld->cl_ldrive != NULL) { 1406 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1407 ld->cl_ldrive = NULL; 1408 } 1409 if (ld->cl_lstatus != NULL) { 1410 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1411 ld->cl_lstatus = NULL; 1412 } 1413 } 1414 if (cr != NULL) 1415 ciss_release_request(cr); 1416 1417 return(error); 1418 } 1419 1420 /************************************************************************ 1421 * Get status for a logical drive. 1422 * 1423 * XXX should we also do this in response to Test Unit Ready? 1424 */ 1425 static int 1426 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1427 { 1428 struct ciss_request *cr; 1429 struct ciss_command *cc; 1430 struct ciss_bmic_cdb *cbc; 1431 int error, command_status; 1432 1433 /* 1434 * Build a CISS BMIC command to get the logical drive status. 1435 */ 1436 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1437 (void *)&ld->cl_lstatus, 1438 sizeof(*ld->cl_lstatus))) != 0) 1439 goto out; 1440 cc = CISS_FIND_COMMAND(cr); 1441 cc->header.address = *ld->cl_controller; /* target controller */ 1442 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1443 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1444 1445 /* 1446 * Submit the request and wait for it to complete. 1447 */ 1448 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1449 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1450 goto out; 1451 } 1452 1453 /* 1454 * Check response. 1455 */ 1456 ciss_report_request(cr, &command_status, NULL); 1457 switch(command_status) { 1458 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1459 break; 1460 case CISS_CMD_STATUS_DATA_UNDERRUN: 1461 case CISS_CMD_STATUS_DATA_OVERRUN: 1462 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1463 default: 1464 ciss_printf(sc, "error reading logical drive status (%s)\n", 1465 ciss_name_command_status(command_status)); 1466 error = EIO; 1467 goto out; 1468 } 1469 1470 /* 1471 * Set the drive's summary status based on the returned status. 1472 * 1473 * XXX testing shows that a failed JBOD drive comes back at next 1474 * boot in "queued for expansion" mode. WTF? 1475 */ 1476 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1477 1478 out: 1479 if (cr != NULL) 1480 ciss_release_request(cr); 1481 return(error); 1482 } 1483 1484 /************************************************************************ 1485 * Notify the adapter of a config update. 1486 */ 1487 static int 1488 ciss_update_config(struct ciss_softc *sc) 1489 { 1490 int i; 1491 1492 debug_called(1); 1493 1494 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1495 for (i = 0; i < 1000; i++) { 1496 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1497 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1498 return(0); 1499 } 1500 DELAY(1000); 1501 } 1502 return(1); 1503 } 1504 1505 /************************************************************************ 1506 * Accept new media into a logical drive. 1507 * 1508 * XXX The drive has previously been offline; it would be good if we 1509 * could make sure it's not open right now. 1510 */ 1511 static int 1512 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1513 { 1514 struct ciss_request *cr; 1515 struct ciss_command *cc; 1516 struct ciss_bmic_cdb *cbc; 1517 int command_status; 1518 int error = 0, ldrive; 1519 1520 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1521 1522 debug(0, "bringing logical drive %d back online", ldrive); 1523 1524 /* 1525 * Build a CISS BMIC command to bring the drive back online. 1526 */ 1527 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1528 NULL, 0)) != 0) 1529 goto out; 1530 cc = CISS_FIND_COMMAND(cr); 1531 cc->header.address = *ld->cl_controller; /* target controller */ 1532 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1533 cbc->log_drive = ldrive; 1534 1535 /* 1536 * Submit the request and wait for it to complete. 1537 */ 1538 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1539 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1540 goto out; 1541 } 1542 1543 /* 1544 * Check response. 1545 */ 1546 ciss_report_request(cr, &command_status, NULL); 1547 switch(command_status) { 1548 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1549 /* we should get a logical drive status changed event here */ 1550 break; 1551 default: 1552 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1553 ciss_name_command_status(command_status)); 1554 break; 1555 } 1556 1557 out: 1558 if (cr != NULL) 1559 ciss_release_request(cr); 1560 return(error); 1561 } 1562 1563 /************************************************************************ 1564 * Release adapter resources. 1565 */ 1566 static void 1567 ciss_free(struct ciss_softc *sc) 1568 { 1569 struct ciss_request *cr; 1570 int i; 1571 1572 debug_called(1); 1573 1574 /* we're going away */ 1575 sc->ciss_flags |= CISS_FLAG_ABORTING; 1576 1577 /* terminate the periodic heartbeat routine */ 1578 callout_stop(&sc->ciss_periodic); 1579 1580 /* cancel the Event Notify chain */ 1581 ciss_notify_abort(sc); 1582 1583 ciss_kill_notify_thread(sc); 1584 1585 /* remove the control device */ 1586 if (sc->ciss_dev_t != NULL) 1587 destroy_dev(sc->ciss_dev_t); 1588 1589 /* free the controller data */ 1590 if (sc->ciss_id != NULL) 1591 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1592 1593 /* release I/O resources */ 1594 if (sc->ciss_regs_resource != NULL) 1595 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1596 sc->ciss_regs_rid, sc->ciss_regs_resource); 1597 if (sc->ciss_cfg_resource != NULL) 1598 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1599 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1600 if (sc->ciss_intr != NULL) 1601 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1602 if (sc->ciss_irq_resource != NULL) 1603 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1604 sc->ciss_irq_rid, sc->ciss_irq_resource); 1605 1606 /* destroy DMA tags */ 1607 if (sc->ciss_parent_dmat) 1608 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1609 1610 while ((cr = ciss_dequeue_free(sc)) != NULL) 1611 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1612 if (sc->ciss_buffer_dmat) 1613 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1614 1615 /* destroy command memory and DMA tag */ 1616 if (sc->ciss_command != NULL) { 1617 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1618 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1619 } 1620 if (sc->ciss_command_dmat) 1621 bus_dma_tag_destroy(sc->ciss_command_dmat); 1622 1623 /* disconnect from CAM */ 1624 if (sc->ciss_cam_sim) { 1625 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1626 if (sc->ciss_cam_sim[i]) { 1627 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1628 cam_sim_free(sc->ciss_cam_sim[i]); 1629 } 1630 } 1631 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1632 CISS_PHYSICAL_BASE; i++) { 1633 if (sc->ciss_cam_sim[i]) { 1634 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1635 cam_sim_free(sc->ciss_cam_sim[i]); 1636 } 1637 } 1638 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1639 } 1640 if (sc->ciss_cam_devq) 1641 cam_simq_release(sc->ciss_cam_devq); 1642 1643 if (sc->ciss_logical) { 1644 for (i = 0; i < sc->ciss_max_logical_bus; i++) 1645 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1646 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1647 } 1648 1649 if (sc->ciss_physical) { 1650 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1651 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1652 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1653 } 1654 1655 if (sc->ciss_controllers) 1656 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1657 } 1658 1659 /************************************************************************ 1660 * Give a command to the adapter. 1661 * 1662 * Note that this uses the simple transport layer directly. If we 1663 * want to add support for other layers, we'll need a switch of some 1664 * sort. 1665 * 1666 * Note that the simple transport layer has no way of refusing a 1667 * command; we only have as many request structures as the adapter 1668 * supports commands, so we don't have to check (this presumes that 1669 * the adapter can handle commands as fast as we throw them at it). 1670 */ 1671 static int 1672 ciss_start(struct ciss_request *cr) 1673 { 1674 struct ciss_command *cc; /* XXX debugging only */ 1675 int error; 1676 1677 cc = CISS_FIND_COMMAND(cr); 1678 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1679 1680 /* 1681 * Map the request's data. 1682 */ 1683 if ((error = ciss_map_request(cr))) 1684 return(error); 1685 1686 #if 0 1687 ciss_print_request(cr); 1688 #endif 1689 1690 return(0); 1691 } 1692 1693 /************************************************************************ 1694 * Fetch completed request(s) from the adapter, queue them for 1695 * completion handling. 1696 * 1697 * Note that this uses the simple transport layer directly. If we 1698 * want to add support for other layers, we'll need a switch of some 1699 * sort. 1700 * 1701 * Note that the simple transport mechanism does not require any 1702 * reentrancy protection; the OPQ read is atomic. If there is a 1703 * chance of a race with something else that might move the request 1704 * off the busy list, then we will have to lock against that 1705 * (eg. timeouts, etc.) 1706 */ 1707 static void 1708 ciss_done(struct ciss_softc *sc) 1709 { 1710 struct ciss_request *cr; 1711 struct ciss_command *cc; 1712 u_int32_t tag, index; 1713 int complete; 1714 1715 debug_called(3); 1716 1717 /* 1718 * Loop quickly taking requests from the adapter and moving them 1719 * from the busy queue to the completed queue. 1720 */ 1721 complete = 0; 1722 for (;;) { 1723 1724 /* see if the OPQ contains anything */ 1725 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1726 break; 1727 1728 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1729 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1730 break; 1731 index = tag >> 2; 1732 debug(2, "completed command %d%s", index, 1733 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1734 if (index >= sc->ciss_max_requests) { 1735 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1736 continue; 1737 } 1738 cr = &(sc->ciss_request[index]); 1739 cc = CISS_FIND_COMMAND(cr); 1740 cc->header.host_tag = tag; /* not updated by adapter */ 1741 if (ciss_remove_busy(cr)) { 1742 /* assume this is garbage out of the adapter */ 1743 ciss_printf(sc, "completed nonbusy request %d\n", index); 1744 } else { 1745 ciss_enqueue_complete(cr); 1746 } 1747 complete = 1; 1748 } 1749 1750 /* 1751 * Invoke completion processing. If we can defer this out of 1752 * interrupt context, that'd be good. 1753 */ 1754 if (complete) 1755 ciss_complete(sc); 1756 } 1757 1758 /************************************************************************ 1759 * Take an interrupt from the adapter. 1760 */ 1761 static void 1762 ciss_intr(void *arg) 1763 { 1764 struct ciss_softc *sc = (struct ciss_softc *)arg; 1765 1766 /* 1767 * The only interrupt we recognise indicates that there are 1768 * entries in the outbound post queue. 1769 */ 1770 ciss_done(sc); 1771 } 1772 1773 /************************************************************************ 1774 * Process completed requests. 1775 * 1776 * Requests can be completed in three fashions: 1777 * 1778 * - by invoking a callback function (cr_complete is non-null) 1779 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1780 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1781 */ 1782 static void 1783 ciss_complete(struct ciss_softc *sc) 1784 { 1785 struct ciss_request *cr; 1786 1787 debug_called(2); 1788 1789 /* 1790 * Loop taking requests off the completed queue and performing 1791 * completion processing on them. 1792 */ 1793 for (;;) { 1794 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1795 break; 1796 ciss_unmap_request(cr); 1797 1798 /* 1799 * If the request has a callback, invoke it. 1800 */ 1801 if (cr->cr_complete != NULL) { 1802 cr->cr_complete(cr); 1803 continue; 1804 } 1805 1806 /* 1807 * If someone is sleeping on this request, wake them up. 1808 */ 1809 if (cr->cr_flags & CISS_REQ_SLEEP) { 1810 cr->cr_flags &= ~CISS_REQ_SLEEP; 1811 wakeup(cr); 1812 continue; 1813 } 1814 1815 /* 1816 * If someone is polling this request for completion, signal. 1817 */ 1818 if (cr->cr_flags & CISS_REQ_POLL) { 1819 cr->cr_flags &= ~CISS_REQ_POLL; 1820 continue; 1821 } 1822 1823 /* 1824 * Give up and throw the request back on the free queue. This 1825 * should never happen; resources will probably be lost. 1826 */ 1827 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1828 ciss_enqueue_free(cr); 1829 } 1830 } 1831 1832 /************************************************************************ 1833 * Report on the completion status of a request, and pass back SCSI 1834 * and command status values. 1835 */ 1836 static int 1837 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1838 { 1839 struct ciss_command *cc; 1840 struct ciss_error_info *ce; 1841 1842 debug_called(2); 1843 1844 cc = CISS_FIND_COMMAND(cr); 1845 ce = (struct ciss_error_info *)&(cc->sg[0]); 1846 1847 /* 1848 * We don't consider data under/overrun an error for the Report 1849 * Logical/Physical LUNs commands. 1850 */ 1851 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1852 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 1853 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 1854 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1855 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 1856 (cc->cdb.cdb[0] == INQUIRY))) { 1857 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1858 debug(2, "ignoring irrelevant under/overrun error"); 1859 } 1860 1861 /* 1862 * Check the command's error bit, if clear, there's no status and 1863 * everything is OK. 1864 */ 1865 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1866 if (scsi_status != NULL) 1867 *scsi_status = SCSI_STATUS_OK; 1868 if (command_status != NULL) 1869 *command_status = CISS_CMD_STATUS_SUCCESS; 1870 return(0); 1871 } else { 1872 if (command_status != NULL) 1873 *command_status = ce->command_status; 1874 if (scsi_status != NULL) { 1875 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1876 *scsi_status = ce->scsi_status; 1877 } else { 1878 *scsi_status = -1; 1879 } 1880 } 1881 if (bootverbose) 1882 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1883 ce->command_status, ciss_name_command_status(ce->command_status), 1884 ce->scsi_status); 1885 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1886 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1887 ce->additional_error_info.invalid_command.offense_size, 1888 ce->additional_error_info.invalid_command.offense_offset, 1889 ce->additional_error_info.invalid_command.offense_value); 1890 } 1891 } 1892 #if 0 1893 ciss_print_request(cr); 1894 #endif 1895 return(1); 1896 } 1897 1898 /************************************************************************ 1899 * Issue a request and don't return until it's completed. 1900 * 1901 * Depending on adapter status, we may poll or sleep waiting for 1902 * completion. 1903 */ 1904 static int 1905 ciss_synch_request(struct ciss_request *cr, int timeout) 1906 { 1907 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1908 return(ciss_wait_request(cr, timeout)); 1909 } else { 1910 return(ciss_poll_request(cr, timeout)); 1911 } 1912 } 1913 1914 /************************************************************************ 1915 * Issue a request and poll for completion. 1916 * 1917 * Timeout in milliseconds. 1918 */ 1919 static int 1920 ciss_poll_request(struct ciss_request *cr, int timeout) 1921 { 1922 int error; 1923 1924 debug_called(2); 1925 1926 cr->cr_flags |= CISS_REQ_POLL; 1927 if ((error = ciss_start(cr)) != 0) 1928 return(error); 1929 1930 do { 1931 ciss_done(cr->cr_sc); 1932 if (!(cr->cr_flags & CISS_REQ_POLL)) 1933 return(0); 1934 DELAY(1000); 1935 } while (timeout-- >= 0); 1936 return(EWOULDBLOCK); 1937 } 1938 1939 /************************************************************************ 1940 * Issue a request and sleep waiting for completion. 1941 * 1942 * Timeout in milliseconds. Note that a spurious wakeup will reset 1943 * the timeout. 1944 */ 1945 static int 1946 ciss_wait_request(struct ciss_request *cr, int timeout) 1947 { 1948 int error; 1949 1950 debug_called(2); 1951 1952 cr->cr_flags |= CISS_REQ_SLEEP; 1953 if ((error = ciss_start(cr)) != 0) 1954 return(error); 1955 1956 crit_enter(); 1957 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 1958 error = tsleep(cr, 0, "cissREQ", (timeout * hz) / 1000); 1959 } 1960 crit_exit(); 1961 return(error); 1962 } 1963 1964 #if 0 1965 /************************************************************************ 1966 * Abort a request. Note that a potential exists here to race the 1967 * request being completed; the caller must deal with this. 1968 */ 1969 static int 1970 ciss_abort_request(struct ciss_request *ar) 1971 { 1972 struct ciss_request *cr; 1973 struct ciss_command *cc; 1974 struct ciss_message_cdb *cmc; 1975 int error; 1976 1977 debug_called(1); 1978 1979 /* get a request */ 1980 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1981 return(error); 1982 1983 /* build the abort command */ 1984 cc = CISS_FIND_COMMAND(cr); 1985 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1986 cc->header.address.physical.target = 0; 1987 cc->header.address.physical.bus = 0; 1988 cc->cdb.cdb_length = sizeof(*cmc); 1989 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1990 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1991 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1992 cc->cdb.timeout = 30; 1993 1994 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1995 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1996 cmc->type = CISS_MESSAGE_ABORT_TASK; 1997 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1998 1999 /* 2000 * Send the request and wait for a response. If we believe we 2001 * aborted the request OK, clear the flag that indicates it's 2002 * running. 2003 */ 2004 error = ciss_synch_request(cr, 35 * 1000); 2005 if (!error) 2006 error = ciss_report_request(cr, NULL, NULL); 2007 ciss_release_request(cr); 2008 2009 return(error); 2010 } 2011 #endif 2012 2013 2014 /************************************************************************ 2015 * Fetch and initialise a request 2016 */ 2017 static int 2018 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2019 { 2020 struct ciss_request *cr; 2021 2022 debug_called(2); 2023 2024 /* 2025 * Get a request and clean it up. 2026 */ 2027 if ((cr = ciss_dequeue_free(sc)) == NULL) 2028 return(ENOMEM); 2029 2030 cr->cr_data = NULL; 2031 cr->cr_flags = 0; 2032 cr->cr_complete = NULL; 2033 cr->cr_private = NULL; 2034 2035 ciss_preen_command(cr); 2036 *crp = cr; 2037 return(0); 2038 } 2039 2040 static void 2041 ciss_preen_command(struct ciss_request *cr) 2042 { 2043 struct ciss_command *cc; 2044 u_int32_t cmdphys; 2045 2046 /* 2047 * Clean up the command structure. 2048 * 2049 * Note that we set up the error_info structure here, since the 2050 * length can be overwritten by any command. 2051 */ 2052 cc = CISS_FIND_COMMAND(cr); 2053 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2054 cc->header.sg_total = 0; 2055 cc->header.host_tag = cr->cr_tag << 2; 2056 cc->header.host_tag_zeroes = 0; 2057 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2058 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2059 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2060 } 2061 2062 /************************************************************************ 2063 * Release a request to the free list. 2064 */ 2065 static void 2066 ciss_release_request(struct ciss_request *cr) 2067 { 2068 struct ciss_softc *sc; 2069 2070 debug_called(2); 2071 2072 sc = cr->cr_sc; 2073 2074 /* release the request to the free queue */ 2075 ciss_requeue_free(cr); 2076 } 2077 2078 /************************************************************************ 2079 * Allocate a request that will be used to send a BMIC command. Do some 2080 * of the common setup here to avoid duplicating it everywhere else. 2081 */ 2082 static int 2083 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2084 int opcode, void **bufp, size_t bufsize) 2085 { 2086 struct ciss_request *cr; 2087 struct ciss_command *cc; 2088 struct ciss_bmic_cdb *cbc; 2089 void *buf; 2090 int error; 2091 int dataout; 2092 2093 debug_called(2); 2094 2095 cr = NULL; 2096 buf = NULL; 2097 2098 /* 2099 * Get a request. 2100 */ 2101 if ((error = ciss_get_request(sc, &cr)) != 0) 2102 goto out; 2103 2104 /* 2105 * Allocate data storage if requested, determine the data direction. 2106 */ 2107 dataout = 0; 2108 if ((bufsize > 0) && (bufp != NULL)) { 2109 if (*bufp == NULL) { 2110 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2111 } else { 2112 buf = *bufp; 2113 dataout = 1; /* we are given a buffer, so we are writing */ 2114 } 2115 } 2116 2117 /* 2118 * Build a CISS BMIC command to get the logical drive ID. 2119 */ 2120 cr->cr_data = buf; 2121 cr->cr_length = bufsize; 2122 if (!dataout) 2123 cr->cr_flags = CISS_REQ_DATAIN; 2124 2125 cc = CISS_FIND_COMMAND(cr); 2126 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2127 cc->header.address.physical.bus = 0; 2128 cc->header.address.physical.target = 0; 2129 cc->cdb.cdb_length = sizeof(*cbc); 2130 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2131 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2132 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2133 cc->cdb.timeout = 0; 2134 2135 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2136 bzero(cbc, sizeof(*cbc)); 2137 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2138 cbc->bmic_opcode = opcode; 2139 cbc->size = htons((u_int16_t)bufsize); 2140 2141 out: 2142 if (error) { 2143 if (cr != NULL) 2144 ciss_release_request(cr); 2145 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2146 kfree(buf, CISS_MALLOC_CLASS); 2147 } else { 2148 *crp = cr; 2149 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2150 *bufp = buf; 2151 } 2152 return(error); 2153 } 2154 2155 /************************************************************************ 2156 * Handle a command passed in from userspace. 2157 */ 2158 static int 2159 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2160 { 2161 struct ciss_request *cr; 2162 struct ciss_command *cc; 2163 struct ciss_error_info *ce; 2164 int error = 0; 2165 2166 debug_called(1); 2167 2168 cr = NULL; 2169 2170 /* 2171 * Get a request. 2172 */ 2173 if ((error = ciss_get_request(sc, &cr)) != 0) 2174 goto out; 2175 cc = CISS_FIND_COMMAND(cr); 2176 2177 /* 2178 * Allocate an in-kernel databuffer if required, copy in user data. 2179 */ 2180 cr->cr_length = ioc->buf_size; 2181 if (ioc->buf_size > 0) { 2182 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2183 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2184 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2185 goto out; 2186 } 2187 } 2188 2189 /* 2190 * Build the request based on the user command. 2191 */ 2192 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2193 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2194 2195 /* XXX anything else to populate here? */ 2196 2197 /* 2198 * Run the command. 2199 */ 2200 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2201 debug(0, "request failed - %d", error); 2202 goto out; 2203 } 2204 2205 /* 2206 * Check to see if the command succeeded. 2207 */ 2208 ce = (struct ciss_error_info *)&(cc->sg[0]); 2209 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2210 bzero(ce, sizeof(*ce)); 2211 2212 /* 2213 * Copy the results back to the user. 2214 */ 2215 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2216 if ((ioc->buf_size > 0) && 2217 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2218 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2219 goto out; 2220 } 2221 2222 /* done OK */ 2223 error = 0; 2224 2225 out: 2226 if ((cr != NULL) && (cr->cr_data != NULL)) 2227 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2228 if (cr != NULL) 2229 ciss_release_request(cr); 2230 return(error); 2231 } 2232 2233 /************************************************************************ 2234 * Map a request into bus-visible space, initialise the scatter/gather 2235 * list. 2236 */ 2237 static int 2238 ciss_map_request(struct ciss_request *cr) 2239 { 2240 struct ciss_softc *sc; 2241 int error = 0; 2242 2243 debug_called(2); 2244 2245 sc = cr->cr_sc; 2246 2247 /* check that mapping is necessary */ 2248 if (cr->cr_flags & CISS_REQ_MAPPED) 2249 return(0); 2250 2251 cr->cr_flags |= CISS_REQ_MAPPED; 2252 2253 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2254 BUS_DMASYNC_PREWRITE); 2255 2256 if (cr->cr_data != NULL) { 2257 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2258 cr->cr_data, cr->cr_length, 2259 ciss_request_map_helper, cr, 0); 2260 if (error != 0) 2261 return (error); 2262 } else { 2263 /* 2264 * Post the command to the adapter. 2265 */ 2266 ciss_enqueue_busy(cr); 2267 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2268 } 2269 2270 return(0); 2271 } 2272 2273 static void 2274 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2275 { 2276 struct ciss_command *cc; 2277 struct ciss_request *cr; 2278 struct ciss_softc *sc; 2279 int i; 2280 2281 debug_called(2); 2282 2283 cr = (struct ciss_request *)arg; 2284 sc = cr->cr_sc; 2285 cc = CISS_FIND_COMMAND(cr); 2286 2287 for (i = 0; i < nseg; i++) { 2288 cc->sg[i].address = segs[i].ds_addr; 2289 cc->sg[i].length = segs[i].ds_len; 2290 cc->sg[i].extension = 0; 2291 } 2292 /* we leave the s/g table entirely within the command */ 2293 cc->header.sg_in_list = nseg; 2294 cc->header.sg_total = nseg; 2295 2296 if (cr->cr_flags & CISS_REQ_DATAIN) 2297 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2298 if (cr->cr_flags & CISS_REQ_DATAOUT) 2299 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2300 2301 /* 2302 * Post the command to the adapter. 2303 */ 2304 ciss_enqueue_busy(cr); 2305 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2306 } 2307 2308 /************************************************************************ 2309 * Unmap a request from bus-visible space. 2310 */ 2311 static void 2312 ciss_unmap_request(struct ciss_request *cr) 2313 { 2314 struct ciss_softc *sc; 2315 2316 debug_called(2); 2317 2318 sc = cr->cr_sc; 2319 2320 /* check that unmapping is necessary */ 2321 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2322 return; 2323 2324 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2325 BUS_DMASYNC_POSTWRITE); 2326 2327 if (cr->cr_data == NULL) 2328 goto out; 2329 2330 if (cr->cr_flags & CISS_REQ_DATAIN) 2331 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2332 if (cr->cr_flags & CISS_REQ_DATAOUT) 2333 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2334 2335 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2336 out: 2337 cr->cr_flags &= ~CISS_REQ_MAPPED; 2338 } 2339 2340 /************************************************************************ 2341 * Attach the driver to CAM. 2342 * 2343 * We put all the logical drives on a single SCSI bus. 2344 */ 2345 static int 2346 ciss_cam_init(struct ciss_softc *sc) 2347 { 2348 int i, maxbus; 2349 2350 debug_called(1); 2351 2352 /* 2353 * Allocate a devq. We can reuse this for the masked physical 2354 * devices if we decide to export these as well. 2355 */ 2356 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2357 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2358 return(ENOMEM); 2359 } 2360 2361 /* 2362 * Create a SIM. 2363 * 2364 * This naturally wastes a bit of memory. The alternative is to allocate 2365 * and register each bus as it is found, and then track them on a linked 2366 * list. Unfortunately, the driver has a few places where it needs to 2367 * look up the SIM based solely on bus number, and it's unclear whether 2368 * a list traversal would work for these situations. 2369 */ 2370 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2371 CISS_PHYSICAL_BASE); 2372 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2373 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2374 2375 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2376 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2377 "ciss", sc, 2378 device_get_unit(sc->ciss_dev), 2379 &sim_mplock, 1, 2380 sc->ciss_max_requests - 2, 2381 sc->ciss_cam_devq)) == NULL) { 2382 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2383 return(ENOMEM); 2384 } 2385 2386 /* 2387 * Register bus with this SIM. 2388 */ 2389 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2390 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2391 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2392 return (ENXIO); 2393 } 2394 } 2395 } 2396 2397 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2398 CISS_PHYSICAL_BASE; i++) { 2399 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2400 "ciss", sc, 2401 device_get_unit(sc->ciss_dev), 2402 &sim_mplock, 1, 2403 sc->ciss_max_requests - 2, 2404 sc->ciss_cam_devq)) == NULL) { 2405 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2406 return (ENOMEM); 2407 } 2408 2409 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2410 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2411 return (ENXIO); 2412 } 2413 } 2414 2415 /* 2416 * Initiate a rescan of the bus. 2417 */ 2418 ciss_cam_rescan_all(sc); 2419 2420 return(0); 2421 } 2422 2423 /************************************************************************ 2424 * Initiate a rescan of the 'logical devices' SIM 2425 */ 2426 static void 2427 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2428 { 2429 struct cam_path *path; 2430 union ccb *ccb; 2431 2432 debug_called(1); 2433 2434 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2435 2436 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2437 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2438 ciss_printf(sc, "rescan failed (can't create path)\n"); 2439 kfree(ccb, M_TEMP); 2440 return; 2441 } 2442 2443 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2444 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2445 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2446 ccb->crcn.flags = CAM_FLAG_NONE; 2447 xpt_action(ccb); 2448 2449 /* scan is now in progress */ 2450 } 2451 2452 static void 2453 ciss_cam_rescan_all(struct ciss_softc *sc) 2454 { 2455 int i; 2456 2457 /* Rescan the logical buses */ 2458 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2459 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2460 /* Rescan the physical buses */ 2461 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2462 CISS_PHYSICAL_BASE; i++) 2463 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2464 } 2465 2466 static void 2467 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2468 { 2469 xpt_free_path(ccb->ccb_h.path); 2470 kfree(ccb, M_TEMP); 2471 } 2472 2473 /************************************************************************ 2474 * Handle requests coming from CAM 2475 */ 2476 static void 2477 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2478 { 2479 struct ciss_softc *sc; 2480 struct ccb_scsiio *csio; 2481 int bus, target; 2482 int physical; 2483 2484 sc = cam_sim_softc(sim); 2485 bus = cam_sim_bus(sim); 2486 csio = (struct ccb_scsiio *)&ccb->csio; 2487 target = csio->ccb_h.target_id; 2488 physical = CISS_IS_PHYSICAL(bus); 2489 2490 switch (ccb->ccb_h.func_code) { 2491 2492 /* perform SCSI I/O */ 2493 case XPT_SCSI_IO: 2494 if (!ciss_cam_action_io(sim, csio)) 2495 return; 2496 break; 2497 2498 /* perform geometry calculations */ 2499 case XPT_CALC_GEOMETRY: 2500 { 2501 struct ccb_calc_geometry *ccg = &ccb->ccg; 2502 struct ciss_ldrive *ld; 2503 2504 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2505 2506 ld = NULL; 2507 if (!physical) 2508 ld = &sc->ciss_logical[bus][target]; 2509 2510 /* 2511 * Use the cached geometry settings unless the fault tolerance 2512 * is invalid. 2513 */ 2514 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2515 u_int32_t secs_per_cylinder; 2516 2517 ccg->heads = 255; 2518 ccg->secs_per_track = 32; 2519 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2520 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2521 } else { 2522 ccg->heads = ld->cl_geometry.heads; 2523 ccg->secs_per_track = ld->cl_geometry.sectors; 2524 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2525 } 2526 ccb->ccb_h.status = CAM_REQ_CMP; 2527 break; 2528 } 2529 2530 /* handle path attribute inquiry */ 2531 case XPT_PATH_INQ: 2532 { 2533 struct ccb_pathinq *cpi = &ccb->cpi; 2534 2535 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2536 2537 cpi->version_num = 1; 2538 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2539 cpi->target_sprt = 0; 2540 cpi->hba_misc = 0; 2541 cpi->max_target = CISS_MAX_LOGICAL; 2542 cpi->max_lun = 0; /* 'logical drive' channel only */ 2543 cpi->initiator_id = CISS_MAX_LOGICAL; 2544 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2545 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2546 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2547 cpi->unit_number = cam_sim_unit(sim); 2548 cpi->bus_id = cam_sim_bus(sim); 2549 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2550 cpi->transport = XPORT_SPI; 2551 cpi->transport_version = 2; 2552 cpi->protocol = PROTO_SCSI; 2553 cpi->protocol_version = SCSI_REV_2; 2554 ccb->ccb_h.status = CAM_REQ_CMP; 2555 break; 2556 } 2557 2558 case XPT_GET_TRAN_SETTINGS: 2559 { 2560 struct ccb_trans_settings *cts = &ccb->cts; 2561 int bus, target; 2562 struct ccb_trans_settings_spi *spi = 2563 &cts->xport_specific.spi; 2564 2565 bus = cam_sim_bus(sim); 2566 target = cts->ccb_h.target_id; 2567 2568 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2569 /* disconnect always OK */ 2570 cts->protocol = PROTO_SCSI; 2571 cts->protocol_version = SCSI_REV_2; 2572 cts->transport = XPORT_SPI; 2573 cts->transport_version = 2; 2574 2575 spi->valid = CTS_SPI_VALID_DISC; 2576 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2577 2578 cts->ccb_h.status = CAM_REQ_CMP; 2579 break; 2580 } 2581 2582 default: /* we can't do this */ 2583 debug(1, "unsupported func_code = 0x%x", ccb->ccb_h.func_code); 2584 ccb->ccb_h.status = CAM_REQ_INVALID; 2585 break; 2586 } 2587 2588 xpt_done(ccb); 2589 } 2590 2591 /************************************************************************ 2592 * Handle a CAM SCSI I/O request. 2593 */ 2594 static int 2595 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2596 { 2597 struct ciss_softc *sc; 2598 int bus, target; 2599 struct ciss_request *cr; 2600 struct ciss_command *cc; 2601 int error; 2602 2603 sc = cam_sim_softc(sim); 2604 bus = cam_sim_bus(sim); 2605 target = csio->ccb_h.target_id; 2606 2607 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2608 2609 /* check that the CDB pointer is not to a physical address */ 2610 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2611 debug(3, " CDB pointer is to physical address"); 2612 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2613 } 2614 2615 /* if there is data transfer, it must be to/from a virtual address */ 2616 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2617 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2618 debug(3, " data pointer is to physical address"); 2619 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2620 } 2621 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2622 debug(3, " data has premature s/g setup"); 2623 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2624 } 2625 } 2626 2627 /* abandon aborted ccbs or those that have failed validation */ 2628 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2629 debug(3, "abandoning CCB due to abort/validation failure"); 2630 return(EINVAL); 2631 } 2632 2633 /* handle emulation of some SCSI commands ourself */ 2634 if (ciss_cam_emulate(sc, csio)) 2635 return(0); 2636 2637 /* 2638 * Get a request to manage this command. If we can't, return the 2639 * ccb, freeze the queue and flag so that we unfreeze it when a 2640 * request completes. 2641 */ 2642 if ((error = ciss_get_request(sc, &cr)) != 0) { 2643 xpt_freeze_simq(sim, 1); 2644 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2645 return(error); 2646 } 2647 2648 /* 2649 * Build the command. 2650 */ 2651 cc = CISS_FIND_COMMAND(cr); 2652 cr->cr_data = csio->data_ptr; 2653 cr->cr_length = csio->dxfer_len; 2654 cr->cr_complete = ciss_cam_complete; 2655 cr->cr_private = csio; 2656 2657 /* 2658 * Target the right logical volume. 2659 */ 2660 if (CISS_IS_PHYSICAL(bus)) 2661 cc->header.address = 2662 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2663 else 2664 cc->header.address = 2665 sc->ciss_logical[bus][target].cl_address; 2666 cc->cdb.cdb_length = csio->cdb_len; 2667 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2668 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2669 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2670 cr->cr_flags = CISS_REQ_DATAOUT; 2671 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2672 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2673 cr->cr_flags = CISS_REQ_DATAIN; 2674 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2675 } else { 2676 cr->cr_flags = 0; 2677 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2678 } 2679 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2680 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2681 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2682 } else { 2683 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2684 } 2685 2686 /* 2687 * Submit the request to the adapter. 2688 * 2689 * Note that this may fail if we're unable to map the request (and 2690 * if we ever learn a transport layer other than simple, may fail 2691 * if the adapter rejects the command). 2692 */ 2693 if ((error = ciss_start(cr)) != 0) { 2694 xpt_freeze_simq(sim, 1); 2695 if (error == EINPROGRESS) { 2696 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2697 error = 0; 2698 } else { 2699 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2700 ciss_release_request(cr); 2701 } 2702 return(error); 2703 } 2704 2705 return(0); 2706 } 2707 2708 /************************************************************************ 2709 * Emulate SCSI commands the adapter doesn't handle as we might like. 2710 */ 2711 static int 2712 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2713 { 2714 int bus, target; 2715 u_int8_t opcode; 2716 2717 target = csio->ccb_h.target_id; 2718 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2719 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2720 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2721 2722 if (CISS_IS_PHYSICAL(bus)) { 2723 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2724 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2725 xpt_done((union ccb *)csio); 2726 return(1); 2727 } else 2728 return(0); 2729 } 2730 2731 /* 2732 * Handle requests for volumes that don't exist or are not online. 2733 * A selection timeout is slightly better than an illegal request. 2734 * Other errors might be better. 2735 */ 2736 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2737 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2738 xpt_done((union ccb *)csio); 2739 return(1); 2740 } 2741 2742 /* if we have to fake Synchronise Cache */ 2743 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2744 /* 2745 * If this is a Synchronise Cache command, typically issued when 2746 * a device is closed, flush the adapter and complete now. 2747 */ 2748 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2749 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2750 ciss_flush_adapter(sc); 2751 csio->ccb_h.status = CAM_REQ_CMP; 2752 xpt_done((union ccb *)csio); 2753 return(1); 2754 } 2755 } 2756 2757 return(0); 2758 } 2759 2760 /************************************************************************ 2761 * Check for possibly-completed commands. 2762 */ 2763 static void 2764 ciss_cam_poll(struct cam_sim *sim) 2765 { 2766 struct ciss_softc *sc = cam_sim_softc(sim); 2767 2768 debug_called(2); 2769 2770 ciss_done(sc); 2771 } 2772 2773 /************************************************************************ 2774 * Handle completion of a command - pass results back through the CCB 2775 */ 2776 static void 2777 ciss_cam_complete(struct ciss_request *cr) 2778 { 2779 struct ciss_softc *sc; 2780 struct ciss_command *cc; 2781 struct ciss_error_info *ce; 2782 struct ccb_scsiio *csio; 2783 int scsi_status; 2784 int command_status; 2785 2786 debug_called(2); 2787 2788 sc = cr->cr_sc; 2789 cc = CISS_FIND_COMMAND(cr); 2790 ce = (struct ciss_error_info *)&(cc->sg[0]); 2791 csio = (struct ccb_scsiio *)cr->cr_private; 2792 2793 /* 2794 * Extract status values from request. 2795 */ 2796 ciss_report_request(cr, &command_status, &scsi_status); 2797 csio->scsi_status = scsi_status; 2798 2799 /* 2800 * Handle specific SCSI status values. 2801 */ 2802 switch(scsi_status) { 2803 /* no status due to adapter error */ 2804 case -1: 2805 debug(0, "adapter error"); 2806 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2807 break; 2808 2809 /* no status due to command completed OK */ 2810 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2811 debug(2, "SCSI_STATUS_OK"); 2812 csio->ccb_h.status = CAM_REQ_CMP; 2813 break; 2814 2815 /* check condition, sense data included */ 2816 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2817 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2818 ce->sense_length, ce->residual_count); 2819 bzero(&csio->sense_data, SSD_FULL_SIZE); 2820 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2821 csio->sense_len = ce->sense_length; 2822 csio->resid = ce->residual_count; 2823 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2824 #ifdef CISS_DEBUG 2825 { 2826 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2827 debug(0, "sense key %x", sns->flags & SSD_KEY); 2828 } 2829 #endif 2830 break; 2831 2832 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2833 debug(0, "SCSI_STATUS_BUSY"); 2834 csio->ccb_h.status = CAM_SCSI_BUSY; 2835 break; 2836 2837 default: 2838 debug(0, "unknown status 0x%x", csio->scsi_status); 2839 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2840 break; 2841 } 2842 2843 /* handle post-command fixup */ 2844 ciss_cam_complete_fixup(sc, csio); 2845 2846 /* tell CAM we're ready for more commands */ 2847 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2848 2849 xpt_done((union ccb *)csio); 2850 ciss_release_request(cr); 2851 } 2852 2853 /******************************************************************************** 2854 * Fix up the result of some commands here. 2855 */ 2856 static void 2857 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2858 { 2859 struct scsi_inquiry_data *inq; 2860 struct ciss_ldrive *cl; 2861 int bus, target; 2862 2863 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2864 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2865 2866 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2867 target = csio->ccb_h.target_id; 2868 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2869 2870 /* 2871 * Don't let hard drives be seen by the DA driver. They will still be 2872 * attached by the PASS driver. 2873 */ 2874 if (CISS_IS_PHYSICAL(bus)) { 2875 if (SID_TYPE(inq) == T_DIRECT) 2876 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2877 return; 2878 } 2879 2880 cl = &sc->ciss_logical[bus][target]; 2881 2882 padstr(inq->vendor, "COMPAQ", 8); 2883 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2884 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2885 } 2886 } 2887 2888 2889 /******************************************************************************** 2890 * Find a peripheral attached at (target) 2891 */ 2892 static struct cam_periph * 2893 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2894 { 2895 struct cam_periph *periph; 2896 struct cam_path *path; 2897 int status; 2898 2899 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2900 target, 0); 2901 if (status == CAM_REQ_CMP) { 2902 periph = cam_periph_find(path, NULL); 2903 xpt_free_path(path); 2904 } else { 2905 periph = NULL; 2906 } 2907 return(periph); 2908 } 2909 2910 /******************************************************************************** 2911 * Name the device at (target) 2912 * 2913 * XXX is this strictly correct? 2914 */ 2915 static int 2916 ciss_name_device(struct ciss_softc *sc, int bus, int target) 2917 { 2918 struct cam_periph *periph; 2919 2920 if (CISS_IS_PHYSICAL(bus)) 2921 return (0); 2922 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 2923 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 2924 periph->periph_name, periph->unit_number); 2925 return(0); 2926 } 2927 sc->ciss_logical[bus][target].cl_name[0] = 0; 2928 return(ENOENT); 2929 } 2930 2931 /************************************************************************ 2932 * Periodic status monitoring. 2933 */ 2934 static void 2935 ciss_periodic(void *arg) 2936 { 2937 struct ciss_softc *sc; 2938 2939 debug_called(1); 2940 2941 sc = (struct ciss_softc *)arg; 2942 2943 /* 2944 * Check the adapter heartbeat. 2945 */ 2946 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2947 sc->ciss_heart_attack++; 2948 debug(0, "adapter heart attack in progress 0x%x/%d", 2949 sc->ciss_heartbeat, sc->ciss_heart_attack); 2950 if (sc->ciss_heart_attack == 3) { 2951 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2952 /* XXX should reset adapter here */ 2953 } 2954 } else { 2955 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2956 sc->ciss_heart_attack = 0; 2957 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2958 } 2959 2960 /* 2961 * If the notify event request has died for some reason, or has 2962 * not started yet, restart it. 2963 */ 2964 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2965 debug(0, "(re)starting Event Notify chain"); 2966 ciss_notify_event(sc); 2967 } 2968 2969 /* 2970 * Reschedule. 2971 */ 2972 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2973 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, 2974 ciss_periodic, sc); 2975 } 2976 2977 /************************************************************************ 2978 * Request a notification response from the adapter. 2979 * 2980 * If (cr) is NULL, this is the first request of the adapter, so 2981 * reset the adapter's message pointer and start with the oldest 2982 * message available. 2983 */ 2984 static void 2985 ciss_notify_event(struct ciss_softc *sc) 2986 { 2987 struct ciss_request *cr; 2988 struct ciss_command *cc; 2989 struct ciss_notify_cdb *cnc; 2990 int error; 2991 2992 debug_called(1); 2993 2994 cr = sc->ciss_periodic_notify; 2995 2996 /* get a request if we don't already have one */ 2997 if (cr == NULL) { 2998 if ((error = ciss_get_request(sc, &cr)) != 0) { 2999 debug(0, "can't get notify event request"); 3000 goto out; 3001 } 3002 sc->ciss_periodic_notify = cr; 3003 cr->cr_complete = ciss_notify_complete; 3004 debug(1, "acquired request %d", cr->cr_tag); 3005 } 3006 3007 /* 3008 * Get a databuffer if we don't already have one, note that the 3009 * adapter command wants a larger buffer than the actual 3010 * structure. 3011 */ 3012 if (cr->cr_data == NULL) { 3013 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3014 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3015 } 3016 3017 /* re-setup the request's command (since we never release it) XXX overkill*/ 3018 ciss_preen_command(cr); 3019 3020 /* (re)build the notify event command */ 3021 cc = CISS_FIND_COMMAND(cr); 3022 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3023 cc->header.address.physical.bus = 0; 3024 cc->header.address.physical.target = 0; 3025 3026 cc->cdb.cdb_length = sizeof(*cnc); 3027 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3028 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3029 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3030 cc->cdb.timeout = 0; /* no timeout, we hope */ 3031 3032 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3033 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3034 cnc->opcode = CISS_OPCODE_READ; 3035 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3036 cnc->timeout = 0; /* no timeout, we hope */ 3037 cnc->synchronous = 0; 3038 cnc->ordered = 0; 3039 cnc->seek_to_oldest = 0; 3040 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3041 cnc->new_only = 1; 3042 else 3043 cnc->new_only = 0; 3044 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3045 3046 /* submit the request */ 3047 error = ciss_start(cr); 3048 3049 out: 3050 if (error) { 3051 if (cr != NULL) { 3052 if (cr->cr_data != NULL) 3053 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3054 ciss_release_request(cr); 3055 } 3056 sc->ciss_periodic_notify = NULL; 3057 debug(0, "can't submit notify event request"); 3058 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3059 } else { 3060 debug(1, "notify event submitted"); 3061 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3062 } 3063 } 3064 3065 static void 3066 ciss_notify_complete(struct ciss_request *cr) 3067 { 3068 struct ciss_command *cc; 3069 struct ciss_notify *cn; 3070 struct ciss_softc *sc; 3071 int scsi_status; 3072 int command_status; 3073 debug_called(1); 3074 3075 cc = CISS_FIND_COMMAND(cr); 3076 cn = (struct ciss_notify *)cr->cr_data; 3077 sc = cr->cr_sc; 3078 3079 /* 3080 * Report request results, decode status. 3081 */ 3082 ciss_report_request(cr, &command_status, &scsi_status); 3083 3084 /* 3085 * Abort the chain on a fatal error. 3086 * 3087 * XXX which of these are actually errors? 3088 */ 3089 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3090 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3091 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3092 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3093 ciss_name_command_status(command_status)); 3094 ciss_release_request(cr); 3095 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3096 return; 3097 } 3098 3099 /* 3100 * If the adapter gave us a text message, print it. 3101 */ 3102 if (cn->message[0] != 0) 3103 ciss_printf(sc, "*** %.80s\n", cn->message); 3104 3105 debug(0, "notify event class %d subclass %d detail %d", 3106 cn->class, cn->subclass, cn->detail); 3107 3108 /* 3109 * If the response indicates that the notifier has been aborted, 3110 * release the notifier command. 3111 */ 3112 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3113 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3114 (cn->detail == 1)) { 3115 debug(0, "notifier exiting"); 3116 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3117 ciss_release_request(cr); 3118 sc->ciss_periodic_notify = NULL; 3119 wakeup(&sc->ciss_periodic_notify); 3120 } else { 3121 /* Handle notify events in a kernel thread */ 3122 ciss_enqueue_notify(cr); 3123 sc->ciss_periodic_notify = NULL; 3124 wakeup(&sc->ciss_periodic_notify); 3125 wakeup(&sc->ciss_notify); 3126 } 3127 /* 3128 * Send a new notify event command, if we're not aborting. 3129 */ 3130 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3131 ciss_notify_event(sc); 3132 } 3133 } 3134 3135 /************************************************************************ 3136 * Abort the Notify Event chain. 3137 * 3138 * Note that we can't just abort the command in progress; we have to 3139 * explicitly issue an Abort Notify Event command in order for the 3140 * adapter to clean up correctly. 3141 * 3142 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3143 * the chain will not restart itself. 3144 */ 3145 static int 3146 ciss_notify_abort(struct ciss_softc *sc) 3147 { 3148 struct ciss_request *cr; 3149 struct ciss_command *cc; 3150 struct ciss_notify_cdb *cnc; 3151 int error, command_status, scsi_status; 3152 3153 debug_called(1); 3154 3155 cr = NULL; 3156 error = 0; 3157 3158 /* verify that there's an outstanding command */ 3159 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3160 goto out; 3161 3162 /* get a command to issue the abort with */ 3163 if ((error = ciss_get_request(sc, &cr))) 3164 goto out; 3165 3166 /* get a buffer for the result */ 3167 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3168 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3169 3170 /* build the CDB */ 3171 cc = CISS_FIND_COMMAND(cr); 3172 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3173 cc->header.address.physical.bus = 0; 3174 cc->header.address.physical.target = 0; 3175 cc->cdb.cdb_length = sizeof(*cnc); 3176 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3177 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3178 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3179 cc->cdb.timeout = 0; /* no timeout, we hope */ 3180 3181 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3182 bzero(cnc, sizeof(*cnc)); 3183 cnc->opcode = CISS_OPCODE_WRITE; 3184 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3185 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3186 3187 ciss_print_request(cr); 3188 3189 /* 3190 * Submit the request and wait for it to complete. 3191 */ 3192 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3193 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3194 goto out; 3195 } 3196 3197 /* 3198 * Check response. 3199 */ 3200 ciss_report_request(cr, &command_status, &scsi_status); 3201 switch(command_status) { 3202 case CISS_CMD_STATUS_SUCCESS: 3203 break; 3204 case CISS_CMD_STATUS_INVALID_COMMAND: 3205 /* 3206 * Some older adapters don't support the CISS version of this 3207 * command. Fall back to using the BMIC version. 3208 */ 3209 error = ciss_notify_abort_bmic(sc); 3210 if (error != 0) 3211 goto out; 3212 break; 3213 3214 case CISS_CMD_STATUS_TARGET_STATUS: 3215 /* 3216 * This can happen if the adapter thinks there wasn't an outstanding 3217 * Notify Event command but we did. We clean up here. 3218 */ 3219 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3220 if (sc->ciss_periodic_notify != NULL) 3221 ciss_release_request(sc->ciss_periodic_notify); 3222 error = 0; 3223 goto out; 3224 } 3225 /* FALLTHROUGH */ 3226 3227 default: 3228 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3229 ciss_name_command_status(command_status)); 3230 error = EIO; 3231 goto out; 3232 } 3233 3234 /* 3235 * Sleep waiting for the notifier command to complete. Note 3236 * that if it doesn't, we may end up in a bad situation, since 3237 * the adapter may deliver it later. Also note that the adapter 3238 * requires the Notify Event command to be cancelled in order to 3239 * maintain internal bookkeeping. 3240 */ 3241 crit_enter(); 3242 while (sc->ciss_periodic_notify != NULL) { 3243 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3244 if (error == EWOULDBLOCK) { 3245 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3246 break; 3247 } 3248 } 3249 crit_exit(); 3250 3251 out: 3252 /* release the cancel request */ 3253 if (cr != NULL) { 3254 if (cr->cr_data != NULL) 3255 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3256 ciss_release_request(cr); 3257 } 3258 if (error == 0) 3259 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3260 return(error); 3261 } 3262 3263 /************************************************************************ 3264 * Abort the Notify Event chain using a BMIC command. 3265 */ 3266 static int 3267 ciss_notify_abort_bmic(struct ciss_softc *sc) 3268 { 3269 struct ciss_request *cr; 3270 int error, command_status; 3271 3272 debug_called(1); 3273 3274 cr = NULL; 3275 error = 0; 3276 3277 /* verify that there's an outstanding command */ 3278 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3279 goto out; 3280 3281 /* 3282 * Build a BMIC command to cancel the Notify on Event command. 3283 * 3284 * Note that we are sending a CISS opcode here. Odd. 3285 */ 3286 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3287 NULL, 0)) != 0) 3288 goto out; 3289 3290 /* 3291 * Submit the request and wait for it to complete. 3292 */ 3293 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3294 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3295 goto out; 3296 } 3297 3298 /* 3299 * Check response. 3300 */ 3301 ciss_report_request(cr, &command_status, NULL); 3302 switch(command_status) { 3303 case CISS_CMD_STATUS_SUCCESS: 3304 break; 3305 default: 3306 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3307 ciss_name_command_status(command_status)); 3308 error = EIO; 3309 goto out; 3310 } 3311 3312 out: 3313 if (cr != NULL) 3314 ciss_release_request(cr); 3315 return(error); 3316 } 3317 3318 /************************************************************************ 3319 * Handle rescanning all the logical volumes when a notify event 3320 * causes the drives to come online or offline. 3321 */ 3322 static void 3323 ciss_notify_rescan_logical(struct ciss_softc *sc) 3324 { 3325 struct ciss_lun_report *cll; 3326 struct ciss_ldrive *ld; 3327 int i, j, ndrives; 3328 3329 /* 3330 * We must rescan all logical volumes to get the right logical 3331 * drive address. 3332 */ 3333 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3334 CISS_MAX_LOGICAL); 3335 if (cll == NULL) 3336 return; 3337 3338 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3339 3340 /* 3341 * Delete any of the drives which were destroyed by the 3342 * firmware. 3343 */ 3344 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3345 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3346 ld = &sc->ciss_logical[i][j]; 3347 3348 if (ld->cl_update == 0) 3349 continue; 3350 3351 if (ld->cl_status != CISS_LD_ONLINE) { 3352 ciss_cam_rescan_target(sc, i, j); 3353 ld->cl_update = 0; 3354 if (ld->cl_ldrive) 3355 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3356 if (ld->cl_lstatus) 3357 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3358 3359 ld->cl_ldrive = NULL; 3360 ld->cl_lstatus = NULL; 3361 } 3362 } 3363 } 3364 3365 /* 3366 * Scan for new drives. 3367 */ 3368 for (i = 0; i < ndrives; i++) { 3369 int bus, target; 3370 3371 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3372 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3373 ld = &sc->ciss_logical[bus][target]; 3374 3375 if (ld->cl_update == 0) 3376 continue; 3377 3378 ld->cl_update = 0; 3379 ld->cl_address = cll->lun[i]; 3380 ld->cl_controller = &sc->ciss_controllers[bus]; 3381 if (ciss_identify_logical(sc, ld) == 0) { 3382 ciss_cam_rescan_target(sc, bus, target); 3383 } 3384 } 3385 kfree(cll, CISS_MALLOC_CLASS); 3386 } 3387 3388 /************************************************************************ 3389 * Handle a notify event relating to the status of a logical drive. 3390 * 3391 * XXX need to be able to defer some of these to properly handle 3392 * calling the "ID Physical drive" command, unless the 'extended' 3393 * drive IDs are always in BIG_MAP format. 3394 */ 3395 static void 3396 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3397 { 3398 struct ciss_ldrive *ld; 3399 int ostatus, bus, target; 3400 3401 debug_called(2); 3402 3403 bus = cn->device.physical.bus; 3404 target = cn->data.logical_status.logical_drive; 3405 ld = &sc->ciss_logical[bus][target]; 3406 3407 switch (cn->subclass) { 3408 case CISS_NOTIFY_LOGICAL_STATUS: 3409 switch (cn->detail) { 3410 case 0: 3411 ciss_name_device(sc, bus, target); 3412 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3413 cn->data.logical_status.logical_drive, ld->cl_name, 3414 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3415 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3416 cn->data.logical_status.spare_state, 3417 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3418 3419 /* 3420 * Update our idea of the drive's status. 3421 */ 3422 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3423 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3424 if (ld->cl_lstatus != NULL) 3425 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3426 3427 /* 3428 * Have CAM rescan the drive if its status has changed. 3429 */ 3430 if (ostatus != ld->cl_status) { 3431 ld->cl_update = 1; 3432 ciss_notify_rescan_logical(sc); 3433 } 3434 3435 break; 3436 3437 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3438 ciss_name_device(sc, bus, target); 3439 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3440 cn->data.logical_status.logical_drive, ld->cl_name); 3441 ciss_accept_media(sc, ld); 3442 3443 ld->cl_update = 1; 3444 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3445 ciss_notify_rescan_logical(sc); 3446 break; 3447 3448 case 2: 3449 case 3: 3450 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3451 cn->data.rebuild_aborted.logical_drive, 3452 ld->cl_name, 3453 (cn->detail == 2) ? "read" : "write"); 3454 break; 3455 } 3456 break; 3457 3458 case CISS_NOTIFY_LOGICAL_ERROR: 3459 if (cn->detail == 0) { 3460 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3461 cn->data.io_error.logical_drive, 3462 ld->cl_name, 3463 cn->data.io_error.failure_bus, 3464 cn->data.io_error.failure_drive); 3465 /* XXX should we take the drive down at this point, or will we be told? */ 3466 } 3467 break; 3468 3469 case CISS_NOTIFY_LOGICAL_SURFACE: 3470 if (cn->detail == 0) 3471 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3472 cn->data.consistency_completed.logical_drive, 3473 ld->cl_name); 3474 break; 3475 } 3476 } 3477 3478 /************************************************************************ 3479 * Handle a notify event relating to the status of a physical drive. 3480 */ 3481 static void 3482 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3483 { 3484 } 3485 3486 /************************************************************************ 3487 * Handle a notify event relating to the status of a physical drive. 3488 */ 3489 static void 3490 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3491 { 3492 struct ciss_lun_report *cll; 3493 int bus, target; 3494 3495 switch (cn->subclass) { 3496 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3497 case CISS_NOTIFY_HOTPLUG_NONDISK: 3498 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3499 target = 3500 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3501 3502 crit_enter(); 3503 if (cn->detail == 0) { 3504 /* 3505 * Mark the device offline so that it'll start producing selection 3506 * timeouts to the upper layer. 3507 */ 3508 sc->ciss_physical[bus][target].cp_online = 0; 3509 } else { 3510 /* 3511 * Rescan the physical lun list for new items 3512 */ 3513 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3514 CISS_MAX_PHYSICAL); 3515 if (cll == NULL) { 3516 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3517 break; 3518 } 3519 ciss_filter_physical(sc, cll); 3520 } 3521 crit_exit(); 3522 break; 3523 3524 default: 3525 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3526 return; 3527 } 3528 } 3529 3530 /************************************************************************ 3531 * Handle deferred processing of notify events. Notify events may need 3532 * sleep which is unsafe during an interrupt. 3533 */ 3534 static void 3535 ciss_notify_thread(void *arg) 3536 { 3537 struct ciss_softc *sc; 3538 struct ciss_request *cr; 3539 struct ciss_notify *cn; 3540 3541 sc = (struct ciss_softc *)arg; 3542 3543 get_mplock(); 3544 crit_enter(); 3545 3546 for (;;) { 3547 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3548 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3549 tsleep(&sc->ciss_notify, 0, "idle", 0); 3550 } 3551 3552 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3553 break; 3554 3555 cr = ciss_dequeue_notify(sc); 3556 crit_exit(); 3557 3558 if (cr == NULL) 3559 panic("cr null"); 3560 cn = (struct ciss_notify *)cr->cr_data; 3561 3562 switch (cn->class) { 3563 case CISS_NOTIFY_HOTPLUG: 3564 ciss_notify_hotplug(sc, cn); 3565 break; 3566 case CISS_NOTIFY_LOGICAL: 3567 ciss_notify_logical(sc, cn); 3568 break; 3569 case CISS_NOTIFY_PHYSICAL: 3570 ciss_notify_physical(sc, cn); 3571 break; 3572 } 3573 3574 ciss_release_request(cr); 3575 3576 crit_enter(); 3577 } 3578 sc->ciss_notify_thread = NULL; 3579 wakeup(&sc->ciss_notify_thread); 3580 crit_exit(); 3581 rel_mplock(); 3582 } 3583 3584 /************************************************************************ 3585 * Start the notification kernel thread. 3586 */ 3587 static void 3588 ciss_spawn_notify_thread(struct ciss_softc *sc) 3589 { 3590 if (kthread_create(ciss_notify_thread, sc, 3591 &sc->ciss_notify_thread, "ciss_notify%d", 3592 device_get_unit(sc->ciss_dev))) 3593 panic("Could not create notify thread\n"); 3594 } 3595 3596 /************************************************************************ 3597 * Kill the notification kernel thread. 3598 */ 3599 static void 3600 ciss_kill_notify_thread(struct ciss_softc *sc) 3601 { 3602 3603 if (sc->ciss_notify_thread == NULL) 3604 return; 3605 3606 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 3607 wakeup(&sc->ciss_notify); 3608 tsleep(&sc->ciss_notify_thread, 0, "thtrm", 0); 3609 } 3610 3611 /************************************************************************ 3612 * Print a request. 3613 */ 3614 static void 3615 ciss_print_request(struct ciss_request *cr) 3616 { 3617 struct ciss_softc *sc; 3618 struct ciss_command *cc; 3619 int i; 3620 3621 sc = cr->cr_sc; 3622 cc = CISS_FIND_COMMAND(cr); 3623 3624 ciss_printf(sc, "REQUEST @ %p\n", cr); 3625 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 3626 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 3627 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 3628 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 3629 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 3630 switch(cc->header.address.mode.mode) { 3631 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 3632 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 3633 ciss_printf(sc, " physical bus %d target %d\n", 3634 cc->header.address.physical.bus, cc->header.address.physical.target); 3635 break; 3636 case CISS_HDR_ADDRESS_MODE_LOGICAL: 3637 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 3638 break; 3639 } 3640 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 3641 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 3642 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 3643 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 3644 cc->cdb.cdb_length, 3645 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 3646 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 3647 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 3648 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 3649 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 3650 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 3651 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 3652 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 3653 3654 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 3655 /* XXX print error info */ 3656 } else { 3657 /* since we don't use chained s/g, don't support it here */ 3658 for (i = 0; i < cc->header.sg_in_list; i++) { 3659 if ((i % 4) == 0) 3660 ciss_printf(sc, " "); 3661 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 3662 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 3663 kprintf("\n"); 3664 } 3665 } 3666 } 3667 3668 /************************************************************************ 3669 * Print information about the status of a logical drive. 3670 */ 3671 static void 3672 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 3673 { 3674 int bus, target, i; 3675 3676 if (ld->cl_lstatus == NULL) { 3677 kprintf("does not exist\n"); 3678 return; 3679 } 3680 3681 /* print drive status */ 3682 switch(ld->cl_lstatus->status) { 3683 case CISS_LSTATUS_OK: 3684 kprintf("online\n"); 3685 break; 3686 case CISS_LSTATUS_INTERIM_RECOVERY: 3687 kprintf("in interim recovery mode\n"); 3688 break; 3689 case CISS_LSTATUS_READY_RECOVERY: 3690 kprintf("ready to begin recovery\n"); 3691 break; 3692 case CISS_LSTATUS_RECOVERING: 3693 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3694 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 3695 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 3696 bus, target, ld->cl_lstatus->blocks_to_recover); 3697 break; 3698 case CISS_LSTATUS_EXPANDING: 3699 kprintf("being expanded, %u blocks remaining\n", 3700 ld->cl_lstatus->blocks_to_recover); 3701 break; 3702 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3703 kprintf("queued for expansion\n"); 3704 break; 3705 case CISS_LSTATUS_FAILED: 3706 kprintf("queued for expansion\n"); 3707 break; 3708 case CISS_LSTATUS_WRONG_PDRIVE: 3709 kprintf("wrong physical drive inserted\n"); 3710 break; 3711 case CISS_LSTATUS_MISSING_PDRIVE: 3712 kprintf("missing a needed physical drive\n"); 3713 break; 3714 case CISS_LSTATUS_BECOMING_READY: 3715 kprintf("becoming ready\n"); 3716 break; 3717 } 3718 3719 /* print failed physical drives */ 3720 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 3721 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 3722 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 3723 if (bus == -1) 3724 continue; 3725 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 3726 ld->cl_lstatus->drive_failure_map[i]); 3727 } 3728 } 3729 3730 #ifdef CISS_DEBUG 3731 /************************************************************************ 3732 * Print information about the controller/driver. 3733 */ 3734 static void 3735 ciss_print_adapter(struct ciss_softc *sc) 3736 { 3737 int i, j; 3738 3739 ciss_printf(sc, "ADAPTER:\n"); 3740 for (i = 0; i < CISSQ_COUNT; i++) { 3741 ciss_printf(sc, "%s %d/%d\n", 3742 i == 0 ? "free" : 3743 i == 1 ? "busy" : "complete", 3744 sc->ciss_qstat[i].q_length, 3745 sc->ciss_qstat[i].q_max); 3746 } 3747 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 3748 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 3749 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 3750 3751 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3752 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3753 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 3754 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 3755 } 3756 } 3757 3758 /* XXX Should physical drives be printed out here? */ 3759 3760 for (i = 1; i < sc->ciss_max_requests; i++) 3761 ciss_print_request(sc->ciss_request + i); 3762 } 3763 3764 /* DDB hook */ 3765 static void 3766 ciss_print0(void) 3767 { 3768 struct ciss_softc *sc; 3769 3770 sc = devclass_get_softc(devclass_find("ciss"), 0); 3771 if (sc == NULL) { 3772 kprintf("no ciss controllers\n"); 3773 } else { 3774 ciss_print_adapter(sc); 3775 } 3776 } 3777 #endif 3778 3779 /************************************************************************ 3780 * Return a name for a logical drive status value. 3781 */ 3782 static const char * 3783 ciss_name_ldrive_status(int status) 3784 { 3785 switch (status) { 3786 case CISS_LSTATUS_OK: 3787 return("OK"); 3788 case CISS_LSTATUS_FAILED: 3789 return("failed"); 3790 case CISS_LSTATUS_NOT_CONFIGURED: 3791 return("not configured"); 3792 case CISS_LSTATUS_INTERIM_RECOVERY: 3793 return("interim recovery"); 3794 case CISS_LSTATUS_READY_RECOVERY: 3795 return("ready for recovery"); 3796 case CISS_LSTATUS_RECOVERING: 3797 return("recovering"); 3798 case CISS_LSTATUS_WRONG_PDRIVE: 3799 return("wrong physical drive inserted"); 3800 case CISS_LSTATUS_MISSING_PDRIVE: 3801 return("missing physical drive"); 3802 case CISS_LSTATUS_EXPANDING: 3803 return("expanding"); 3804 case CISS_LSTATUS_BECOMING_READY: 3805 return("becoming ready"); 3806 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3807 return("queued for expansion"); 3808 } 3809 return("unknown status"); 3810 } 3811 3812 /************************************************************************ 3813 * Return an online/offline/nonexistent value for a logical drive 3814 * status value. 3815 */ 3816 static int 3817 ciss_decode_ldrive_status(int status) 3818 { 3819 switch(status) { 3820 case CISS_LSTATUS_NOT_CONFIGURED: 3821 return(CISS_LD_NONEXISTENT); 3822 3823 case CISS_LSTATUS_OK: 3824 case CISS_LSTATUS_INTERIM_RECOVERY: 3825 case CISS_LSTATUS_READY_RECOVERY: 3826 case CISS_LSTATUS_RECOVERING: 3827 case CISS_LSTATUS_EXPANDING: 3828 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 3829 return(CISS_LD_ONLINE); 3830 3831 case CISS_LSTATUS_FAILED: 3832 case CISS_LSTATUS_WRONG_PDRIVE: 3833 case CISS_LSTATUS_MISSING_PDRIVE: 3834 case CISS_LSTATUS_BECOMING_READY: 3835 default: 3836 return(CISS_LD_OFFLINE); 3837 } 3838 } 3839 3840 3841 /************************************************************************ 3842 * Return a name for a logical drive's organisation. 3843 */ 3844 static const char * 3845 ciss_name_ldrive_org(int org) 3846 { 3847 switch(org) { 3848 case CISS_LDRIVE_RAID0: 3849 return("RAID 0"); 3850 case CISS_LDRIVE_RAID1: 3851 return("RAID 1"); 3852 case CISS_LDRIVE_RAID4: 3853 return("RAID 4"); 3854 case CISS_LDRIVE_RAID5: 3855 return("RAID 5"); 3856 case CISS_LDRIVE_RAID51: 3857 return("RAID 5+1"); 3858 case CISS_LDRIVE_RAIDADG: 3859 return("RAID ADG"); 3860 } 3861 return("unknown"); 3862 } 3863 3864 /************************************************************************ 3865 * Return a name for a command status value. 3866 */ 3867 static const char * 3868 ciss_name_command_status(int status) 3869 { 3870 switch(status) { 3871 case CISS_CMD_STATUS_SUCCESS: 3872 return("success"); 3873 case CISS_CMD_STATUS_TARGET_STATUS: 3874 return("target status"); 3875 case CISS_CMD_STATUS_DATA_UNDERRUN: 3876 return("data underrun"); 3877 case CISS_CMD_STATUS_DATA_OVERRUN: 3878 return("data overrun"); 3879 case CISS_CMD_STATUS_INVALID_COMMAND: 3880 return("invalid command"); 3881 case CISS_CMD_STATUS_PROTOCOL_ERROR: 3882 return("protocol error"); 3883 case CISS_CMD_STATUS_HARDWARE_ERROR: 3884 return("hardware error"); 3885 case CISS_CMD_STATUS_CONNECTION_LOST: 3886 return("connection lost"); 3887 case CISS_CMD_STATUS_ABORTED: 3888 return("aborted"); 3889 case CISS_CMD_STATUS_ABORT_FAILED: 3890 return("abort failed"); 3891 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 3892 return("unsolicited abort"); 3893 case CISS_CMD_STATUS_TIMEOUT: 3894 return("timeout"); 3895 case CISS_CMD_STATUS_UNABORTABLE: 3896 return("unabortable"); 3897 } 3898 return("unknown status"); 3899 } 3900 3901 /************************************************************************ 3902 * Handle an open on the control device. 3903 */ 3904 static int 3905 ciss_open(struct dev_open_args *ap) 3906 { 3907 cdev_t dev = ap->a_head.a_dev; 3908 struct ciss_softc *sc; 3909 3910 debug_called(1); 3911 3912 sc = (struct ciss_softc *)dev->si_drv1; 3913 3914 /* we might want to veto if someone already has us open */ 3915 3916 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 3917 return(0); 3918 } 3919 3920 /************************************************************************ 3921 * Handle the last close on the control device. 3922 */ 3923 static int 3924 ciss_close(struct dev_close_args *ap) 3925 { 3926 cdev_t dev = ap->a_head.a_dev; 3927 struct ciss_softc *sc; 3928 3929 debug_called(1); 3930 3931 sc = (struct ciss_softc *)dev->si_drv1; 3932 3933 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 3934 return (0); 3935 } 3936 3937 /******************************************************************************** 3938 * Handle adapter-specific control operations. 3939 * 3940 * Note that the API here is compatible with the Linux driver, in order to 3941 * simplify the porting of Compaq's userland tools. 3942 */ 3943 static int 3944 ciss_ioctl(struct dev_ioctl_args *ap) 3945 { 3946 cdev_t dev = ap->a_head.a_dev; 3947 struct ciss_softc *sc; 3948 int error; 3949 3950 debug_called(1); 3951 3952 sc = (struct ciss_softc *)dev->si_drv1; 3953 error = 0; 3954 3955 switch(ap->a_cmd) { 3956 case CCISS_GETPCIINFO: 3957 { 3958 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)ap->a_data; 3959 3960 pis->bus = pci_get_bus(sc->ciss_dev); 3961 pis->dev_fn = pci_get_slot(sc->ciss_dev); 3962 pis->board_id = pci_get_devid(sc->ciss_dev); 3963 3964 break; 3965 } 3966 3967 case CCISS_GETINTINFO: 3968 { 3969 cciss_coalint_struct *cis = (cciss_coalint_struct *)ap->a_data; 3970 3971 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 3972 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 3973 3974 break; 3975 } 3976 3977 case CCISS_SETINTINFO: 3978 { 3979 cciss_coalint_struct *cis = (cciss_coalint_struct *)ap->a_data; 3980 3981 if ((cis->delay == 0) && (cis->count == 0)) { 3982 error = EINVAL; 3983 break; 3984 } 3985 3986 /* 3987 * XXX apparently this is only safe if the controller is idle, 3988 * we should suspend it before doing this. 3989 */ 3990 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 3991 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 3992 3993 if (ciss_update_config(sc)) 3994 error = EIO; 3995 3996 /* XXX resume the controller here */ 3997 break; 3998 } 3999 4000 case CCISS_GETNODENAME: 4001 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)ap->a_data, 4002 sizeof(NodeName_type)); 4003 break; 4004 4005 case CCISS_SETNODENAME: 4006 bcopy((NodeName_type *)ap->a_data, sc->ciss_cfg->server_name, 4007 sizeof(NodeName_type)); 4008 if (ciss_update_config(sc)) 4009 error = EIO; 4010 break; 4011 4012 case CCISS_GETHEARTBEAT: 4013 *(Heartbeat_type *)ap->a_data = sc->ciss_cfg->heartbeat; 4014 break; 4015 4016 case CCISS_GETBUSTYPES: 4017 *(BusTypes_type *)ap->a_data = sc->ciss_cfg->bus_types; 4018 break; 4019 4020 case CCISS_GETFIRMVER: 4021 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)ap->a_data, 4022 sizeof(FirmwareVer_type)); 4023 break; 4024 4025 case CCISS_GETDRIVERVER: 4026 *(DriverVer_type *)ap->a_data = CISS_DRIVER_VERSION; 4027 break; 4028 4029 case CCISS_REVALIDVOLS: 4030 /* 4031 * This is a bit ugly; to do it "right" we really need 4032 * to find any disks that have changed, kick CAM off them, 4033 * then rescan only these disks. It'd be nice if they 4034 * a) told us which disk(s) they were going to play with, 4035 * and b) which ones had arrived. 8( 4036 */ 4037 break; 4038 4039 case CCISS_PASSTHRU: 4040 error = ciss_user_command(sc, (IOCTL_Command_struct *)ap->a_data); 4041 break; 4042 4043 default: 4044 debug(0, "unknown ioctl 0x%lx", ap->a_cmd); 4045 4046 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4047 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4048 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4049 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4050 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4051 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4052 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4053 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4054 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4055 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4056 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4057 4058 error = ENOIOCTL; 4059 break; 4060 } 4061 4062 return(error); 4063 } 4064