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 * $DragonFly: src/sys/dev/raid/ciss/ciss.c,v 1.28 2008/05/18 20:30:23 pavalos Exp $ 29 */ 30 31 /* 32 * Common Interface for SCSI-3 Support driver. 33 * 34 * CISS claims to provide a common interface between a generic SCSI 35 * transport and an intelligent host adapter. 36 * 37 * This driver supports CISS as defined in the document "CISS Command 38 * Interface for SCSI-3 Support Open Specification", Version 1.04, 39 * Valence Number 1, dated 20001127, produced by Compaq Computer 40 * Corporation. This document appears to be a hastily and somewhat 41 * arbitrarlily cut-down version of a larger (and probably even more 42 * chaotic and inconsistent) Compaq internal document. Various 43 * details were also gleaned from Compaq's "cciss" driver for Linux. 44 * 45 * We provide a shim layer between the CISS interface and CAM, 46 * offloading most of the queueing and being-a-disk chores onto CAM. 47 * Entry to the driver is via the PCI bus attachment (ciss_probe, 48 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 49 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 50 * citizens and we have to fake up some responses to get reasonable 51 * behaviour out of them. In addition, the CISS command set is by no 52 * means adequate to support the functionality of a RAID controller, 53 * and thus the supported Compaq adapters utilise portions of the 54 * control protocol from earlier Compaq adapter families. 55 * 56 * Note that we only support the "simple" transport layer over PCI. 57 * This interface (ab)uses the I2O register set (specifically the post 58 * queues) to exchange commands with the adapter. Other interfaces 59 * are available, but we aren't supposed to know about them, and it is 60 * dubious whether they would provide major performance improvements 61 * except under extreme load. 62 * 63 * Currently the only supported CISS adapters are the Compaq Smart 64 * Array 5* series (5300, 5i, 532). Even with only three adapters, 65 * Compaq still manage to have interface variations. 66 * 67 * 68 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 69 * well as Paul Saab at Yahoo! for their assistance in making this 70 * driver happen. 71 * 72 * More thanks must go to John Cagle at HP for the countless hours 73 * spent making this driver "work" with the MSA* series storage 74 * enclosures. Without his help (and nagging), this driver could not 75 * be used with these enclosures. 76 */ 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/kernel.h> 83 #include <sys/bus.h> 84 #include <sys/conf.h> 85 #include <sys/devicestat.h> 86 #include <sys/stat.h> 87 #include <sys/kthread.h> 88 #include <sys/queue.h> 89 #include <sys/rman.h> 90 91 #include <bus/cam/cam.h> 92 #include <bus/cam/cam_ccb.h> 93 #include <bus/cam/cam_periph.h> 94 #include <bus/cam/cam_sim.h> 95 #include <bus/cam/cam_xpt_sim.h> 96 #include <bus/cam/scsi/scsi_all.h> 97 #include <bus/cam/scsi/scsi_message.h> 98 99 #include <machine/clock.h> 100 #include <machine/endian.h> 101 102 #include <bus/pci/pcireg.h> 103 #include <bus/pci/pcivar.h> 104 105 #include "cissreg.h" 106 #include "cissvar.h" 107 #include "cissio.h" 108 109 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_wait_adapter(struct ciss_softc *sc); 121 static int ciss_flush_adapter(struct ciss_softc *sc); 122 static int ciss_init_requests(struct ciss_softc *sc); 123 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 124 int nseg, int error); 125 static int ciss_identify_adapter(struct ciss_softc *sc); 126 static int ciss_init_logical(struct ciss_softc *sc); 127 static int ciss_init_physical(struct ciss_softc *sc); 128 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 129 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 130 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_update_config(struct ciss_softc *sc); 132 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 133 static void ciss_free(struct ciss_softc *sc); 134 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 135 static void ciss_kill_notify_thread(struct ciss_softc *sc); 136 137 /* request submission/completion */ 138 static int ciss_start(struct ciss_request *cr); 139 static void ciss_done(struct ciss_softc *sc); 140 static void ciss_intr(void *arg); 141 static void ciss_complete(struct ciss_softc *sc); 142 static int ciss_report_request(struct ciss_request *cr, int *command_status, 143 int *scsi_status); 144 static int ciss_synch_request(struct ciss_request *cr, int timeout); 145 static int ciss_poll_request(struct ciss_request *cr, int timeout); 146 static int ciss_wait_request(struct ciss_request *cr, int timeout); 147 #if 0 148 static int ciss_abort_request(struct ciss_request *cr); 149 #endif 150 151 /* request queueing */ 152 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 153 static void ciss_preen_command(struct ciss_request *cr); 154 static void ciss_release_request(struct ciss_request *cr); 155 156 /* request helpers */ 157 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 158 int opcode, void **bufp, size_t bufsize); 159 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 160 161 /* DMA map/unmap */ 162 static int ciss_map_request(struct ciss_request *cr); 163 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 164 int nseg, int error); 165 static void ciss_unmap_request(struct ciss_request *cr); 166 167 /* CAM interface */ 168 static int ciss_cam_init(struct ciss_softc *sc); 169 static void ciss_cam_rescan_target(struct ciss_softc *sc, 170 int bus, int target); 171 static void ciss_cam_rescan_all(struct ciss_softc *sc); 172 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 173 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 174 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 175 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 176 static void ciss_cam_poll(struct cam_sim *sim); 177 static void ciss_cam_complete(struct ciss_request *cr); 178 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 179 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 180 int bus, int target); 181 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 182 183 /* periodic status monitoring */ 184 static void ciss_periodic(void *arg); 185 static void ciss_notify_event(struct ciss_softc *sc); 186 static void ciss_notify_complete(struct ciss_request *cr); 187 static int ciss_notify_abort(struct ciss_softc *sc); 188 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 189 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 190 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 191 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 192 193 /* debugging output */ 194 static void ciss_print_request(struct ciss_request *cr); 195 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 196 static const char *ciss_name_ldrive_status(int status); 197 static int ciss_decode_ldrive_status(int status); 198 static const char *ciss_name_ldrive_org(int org); 199 static const char *ciss_name_command_status(int status); 200 201 /* 202 * PCI bus interface. 203 */ 204 static device_method_t ciss_methods[] = { 205 /* Device interface */ 206 DEVMETHOD(device_probe, ciss_probe), 207 DEVMETHOD(device_attach, ciss_attach), 208 DEVMETHOD(device_detach, ciss_detach), 209 DEVMETHOD(device_shutdown, ciss_shutdown), 210 { 0, 0 } 211 }; 212 213 static driver_t ciss_pci_driver = { 214 "ciss", 215 ciss_methods, 216 sizeof(struct ciss_softc) 217 }; 218 219 static devclass_t ciss_devclass; 220 221 DECLARE_DUMMY_MODULE(ciss); 222 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 223 224 /* 225 * Control device interface. 226 */ 227 static d_open_t ciss_open; 228 static d_close_t ciss_close; 229 static d_ioctl_t ciss_ioctl; 230 231 #define CISS_CDEV_MAJOR 166 232 233 static struct dev_ops ciss_ops = { 234 { "ciss", CISS_CDEV_MAJOR, 0 }, 235 .d_open = ciss_open, 236 .d_close = ciss_close, 237 .d_ioctl = ciss_ioctl 238 }; 239 240 /* 241 * This tunable can be set at boot time and controls whether physical devices 242 * that are marked hidden by the firmware should be exposed anyways. 243 */ 244 static unsigned int ciss_expose_hidden_physical = 0; 245 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 246 247 /************************************************************************ 248 * CISS adapters amazingly don't have a defined programming interface 249 * value. (One could say some very despairing things about PCI and 250 * people just not getting the general idea.) So we are forced to 251 * stick with matching against subvendor/subdevice, and thus have to 252 * be updated for every new CISS adapter that appears. 253 */ 254 #define CISS_BOARD_SA5 (1<<0) 255 #define CISS_BOARD_SA5B (1<<1) 256 257 static struct 258 { 259 u_int16_t subvendor; 260 u_int16_t subdevice; 261 int flags; 262 char *desc; 263 } ciss_vendor_data[] = { 264 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 265 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 266 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 267 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 268 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 269 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 270 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 271 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 272 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 273 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 274 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 275 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 276 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 277 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 278 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 279 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 280 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 281 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 282 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 283 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 284 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 285 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 286 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 287 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 288 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 289 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 290 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 291 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 292 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 293 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 294 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 295 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 296 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 297 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 298 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 299 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 300 { 0, 0, 0, NULL } 301 }; 302 303 /************************************************************************ 304 * Find a match for the device in our list of known adapters. 305 */ 306 static int 307 ciss_lookup(device_t dev) 308 { 309 int i; 310 311 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 312 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 313 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 314 return(i); 315 } 316 return(-1); 317 } 318 319 /************************************************************************ 320 * Match a known CISS adapter. 321 */ 322 static int 323 ciss_probe(device_t dev) 324 { 325 int i; 326 327 i = ciss_lookup(dev); 328 if (i != -1) { 329 device_set_desc(dev, ciss_vendor_data[i].desc); 330 return(-10); 331 } 332 return(ENOENT); 333 } 334 335 /************************************************************************ 336 * Attach the driver to this adapter. 337 */ 338 static int 339 ciss_attach(device_t dev) 340 { 341 struct ciss_softc *sc; 342 int i, error; 343 344 debug_called(1); 345 346 #ifdef CISS_DEBUG 347 /* print structure/union sizes */ 348 debug_struct(ciss_command); 349 debug_struct(ciss_header); 350 debug_union(ciss_device_address); 351 debug_struct(ciss_cdb); 352 debug_struct(ciss_report_cdb); 353 debug_struct(ciss_notify_cdb); 354 debug_struct(ciss_notify); 355 debug_struct(ciss_message_cdb); 356 debug_struct(ciss_error_info_pointer); 357 debug_struct(ciss_error_info); 358 debug_struct(ciss_sg_entry); 359 debug_struct(ciss_config_table); 360 debug_struct(ciss_bmic_cdb); 361 debug_struct(ciss_bmic_id_ldrive); 362 debug_struct(ciss_bmic_id_lstatus); 363 debug_struct(ciss_bmic_id_table); 364 debug_struct(ciss_bmic_id_pdrive); 365 debug_struct(ciss_bmic_blink_pdrive); 366 debug_struct(ciss_bmic_flush_cache); 367 debug_const(CISS_MAX_REQUESTS); 368 debug_const(CISS_MAX_LOGICAL); 369 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 370 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 371 debug_const(CISS_COMMAND_ALLOC_SIZE); 372 debug_const(CISS_COMMAND_SG_LENGTH); 373 374 debug_type(cciss_pci_info_struct); 375 debug_type(cciss_coalint_struct); 376 debug_type(cciss_coalint_struct); 377 debug_type(NodeName_type); 378 debug_type(NodeName_type); 379 debug_type(Heartbeat_type); 380 debug_type(BusTypes_type); 381 debug_type(FirmwareVer_type); 382 debug_type(DriverVer_type); 383 debug_type(IOCTL_Command_struct); 384 #endif 385 386 sc = device_get_softc(dev); 387 sc->ciss_dev = dev; 388 callout_init(&sc->ciss_periodic); 389 390 /* 391 * Work out adapter type. 392 */ 393 i = ciss_lookup(dev); 394 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 395 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 396 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 397 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 398 } else { 399 /* really an error on our part */ 400 ciss_printf(sc, "unable to determine hardware type\n"); 401 error = ENXIO; 402 goto out; 403 } 404 405 /* 406 * Do PCI-specific init. 407 */ 408 if ((error = ciss_init_pci(sc)) != 0) 409 goto out; 410 411 /* 412 * Initialise driver queues. 413 */ 414 ciss_initq_free(sc); 415 ciss_initq_busy(sc); 416 ciss_initq_complete(sc); 417 ciss_initq_notify(sc); 418 419 /* 420 * Initialise command/request pool. 421 */ 422 if ((error = ciss_init_requests(sc)) != 0) 423 goto out; 424 425 /* 426 * Get adapter information. 427 */ 428 if ((error = ciss_identify_adapter(sc)) != 0) 429 goto out; 430 431 /* 432 * Find all the physical devices. 433 */ 434 if ((error = ciss_init_physical(sc)) != 0) 435 goto out; 436 437 /* 438 * Build our private table of logical devices. 439 */ 440 if ((error = ciss_init_logical(sc)) != 0) 441 goto out; 442 443 /* 444 * Enable interrupts so that the CAM scan can complete. 445 */ 446 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 447 448 /* 449 * Initialise the CAM interface. 450 */ 451 if ((error = ciss_cam_init(sc)) != 0) 452 goto out; 453 454 /* 455 * Start the heartbeat routine and event chain. 456 */ 457 ciss_periodic(sc); 458 459 /* 460 * Create the control device. 461 */ 462 dev_ops_add(&ciss_ops, -1, device_get_unit(sc->ciss_dev)); 463 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 464 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 465 "ciss%d", device_get_unit(sc->ciss_dev)); 466 sc->ciss_dev_t->si_drv1 = sc; 467 468 /* 469 * The adapter is running; synchronous commands can now sleep 470 * waiting for an interrupt to signal completion. 471 */ 472 sc->ciss_flags |= CISS_FLAG_RUNNING; 473 474 ciss_spawn_notify_thread(sc); 475 476 error = 0; 477 out: 478 if (error != 0) 479 ciss_free(sc); 480 return(error); 481 } 482 483 /************************************************************************ 484 * Detach the driver from this adapter. 485 */ 486 static int 487 ciss_detach(device_t dev) 488 { 489 struct ciss_softc *sc = device_get_softc(dev); 490 491 debug_called(1); 492 493 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) 494 return (EBUSY); 495 496 /* flush adapter cache */ 497 ciss_flush_adapter(sc); 498 499 /* release all resources */ 500 ciss_free(sc); 501 502 return(0); 503 } 504 505 /************************************************************************ 506 * Prepare adapter for system shutdown. 507 */ 508 static int 509 ciss_shutdown(device_t dev) 510 { 511 struct ciss_softc *sc = device_get_softc(dev); 512 513 debug_called(1); 514 515 /* flush adapter cache */ 516 ciss_flush_adapter(sc); 517 518 return(0); 519 } 520 521 /************************************************************************ 522 * Perform PCI-specific attachment actions. 523 */ 524 static int 525 ciss_init_pci(struct ciss_softc *sc) 526 { 527 uintptr_t cbase, csize, cofs; 528 int error; 529 530 debug_called(1); 531 532 /* 533 * Allocate register window first (we need this to find the config 534 * struct). 535 */ 536 error = ENXIO; 537 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 538 if ((sc->ciss_regs_resource = 539 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid, 540 0, ~0, 1, RF_ACTIVE)) == NULL) { 541 ciss_printf(sc, "can't allocate register window\n"); 542 return(ENXIO); 543 } 544 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 545 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 546 547 /* 548 * Find the BAR holding the config structure. If it's not the one 549 * we already mapped for registers, map it too. 550 */ 551 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 552 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 553 if ((sc->ciss_cfg_resource = 554 bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid, 555 0, ~0, 1, RF_ACTIVE)) == NULL) { 556 ciss_printf(sc, "can't allocate config window\n"); 557 return(ENXIO); 558 } 559 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 560 csize = rman_get_end(sc->ciss_cfg_resource) - 561 rman_get_start(sc->ciss_cfg_resource) + 1; 562 } else { 563 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 564 csize = rman_get_end(sc->ciss_regs_resource) - 565 rman_get_start(sc->ciss_regs_resource) + 1; 566 } 567 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 568 569 /* 570 * Use the base/size/offset values we just calculated to 571 * sanity-check the config structure. If it's OK, point to it. 572 */ 573 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 574 ciss_printf(sc, "config table outside window\n"); 575 return(ENXIO); 576 } 577 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 578 debug(1, "config struct at %p", sc->ciss_cfg); 579 580 /* 581 * Validate the config structure. If we supported other transport 582 * methods, we could select amongst them at this point in time. 583 */ 584 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 585 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 586 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 587 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 588 return(ENXIO); 589 } 590 591 /* 592 * Put the board into simple mode, and tell it we're using the low 593 * 4GB of RAM. Set the default interrupt coalescing options. 594 */ 595 if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) { 596 ciss_printf(sc, "adapter does not support 'simple' transport layer\n"); 597 return(ENXIO); 598 } 599 sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE; 600 sc->ciss_cfg->command_physlimit = 0; 601 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 602 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 603 604 #ifdef __i386__ 605 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 606 #endif 607 608 if (ciss_update_config(sc)) { 609 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 610 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 611 return(ENXIO); 612 } 613 if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) { 614 ciss_printf(sc, 615 "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n", 616 sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method); 617 return(ENXIO); 618 } 619 620 /* 621 * Wait for the adapter to come ready. 622 */ 623 if ((error = ciss_wait_adapter(sc)) != 0) 624 return(error); 625 626 /* 627 * Turn off interrupts before we go routing anything. 628 */ 629 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 630 631 /* 632 * Allocate and set up our interrupt. 633 */ 634 sc->ciss_irq_rid = 0; 635 if ((sc->ciss_irq_resource = 636 bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1, 637 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 638 ciss_printf(sc, "can't allocate interrupt\n"); 639 return(ENXIO); 640 } 641 error = bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 642 0, ciss_intr, sc, 643 &sc->ciss_intr, NULL); 644 if (error) { 645 ciss_printf(sc, "can't set up interrupt\n"); 646 return(ENXIO); 647 } 648 649 /* 650 * Allocate the parent bus DMA tag appropriate for our PCI 651 * interface. 652 * 653 * Note that "simple" adapters can only address within a 32-bit 654 * span. 655 */ 656 if (bus_dma_tag_create(NULL, /* parent */ 657 1, 0, /* alignment, boundary */ 658 BUS_SPACE_MAXADDR, /* lowaddr */ 659 BUS_SPACE_MAXADDR, /* highaddr */ 660 NULL, NULL, /* filter, filterarg */ 661 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 662 CISS_COMMAND_SG_LENGTH, /* nsegments */ 663 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 664 BUS_DMA_ALLOCNOW, /* flags */ 665 &sc->ciss_parent_dmat)) { 666 ciss_printf(sc, "can't allocate parent DMA tag\n"); 667 return(ENOMEM); 668 } 669 670 /* 671 * Create DMA tag for mapping buffers into adapter-addressable 672 * space. 673 */ 674 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 675 1, 0, /* alignment, boundary */ 676 BUS_SPACE_MAXADDR, /* lowaddr */ 677 BUS_SPACE_MAXADDR, /* highaddr */ 678 NULL, NULL, /* filter, filterarg */ 679 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 680 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 681 0, /* flags */ 682 &sc->ciss_buffer_dmat)) { 683 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 684 return(ENOMEM); 685 } 686 return(0); 687 } 688 689 /************************************************************************ 690 * Wait for the adapter to come ready. 691 */ 692 static int 693 ciss_wait_adapter(struct ciss_softc *sc) 694 { 695 int i; 696 697 debug_called(1); 698 699 /* 700 * Wait for the adapter to come ready. 701 */ 702 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 703 ciss_printf(sc, "waiting for adapter to come ready...\n"); 704 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 705 DELAY(1000000); /* one second */ 706 if (i > 30) { 707 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 708 return(EIO); 709 } 710 } 711 } 712 return(0); 713 } 714 715 /************************************************************************ 716 * Flush the adapter cache. 717 */ 718 static int 719 ciss_flush_adapter(struct ciss_softc *sc) 720 { 721 struct ciss_request *cr; 722 struct ciss_bmic_flush_cache *cbfc; 723 int error, command_status; 724 725 debug_called(1); 726 727 cr = NULL; 728 cbfc = NULL; 729 730 /* 731 * Build a BMIC request to flush the cache. We don't disable 732 * it, as we may be going to do more I/O (eg. we are emulating 733 * the Synchronise Cache command). 734 */ 735 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 736 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 737 (void **)&cbfc, sizeof(*cbfc))) != 0) 738 goto out; 739 740 /* 741 * Submit the request and wait for it to complete. 742 */ 743 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 744 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 745 goto out; 746 } 747 748 /* 749 * Check response. 750 */ 751 ciss_report_request(cr, &command_status, NULL); 752 switch(command_status) { 753 case CISS_CMD_STATUS_SUCCESS: 754 break; 755 default: 756 ciss_printf(sc, "error flushing cache (%s)\n", 757 ciss_name_command_status(command_status)); 758 error = EIO; 759 goto out; 760 } 761 762 out: 763 if (cbfc != NULL) 764 kfree(cbfc, CISS_MALLOC_CLASS); 765 if (cr != NULL) 766 ciss_release_request(cr); 767 return(error); 768 } 769 770 /************************************************************************ 771 * Allocate memory for the adapter command structures, initialise 772 * the request structures. 773 * 774 * Note that the entire set of commands are allocated in a single 775 * contiguous slab. 776 */ 777 static int 778 ciss_init_requests(struct ciss_softc *sc) 779 { 780 struct ciss_request *cr; 781 int i; 782 783 debug_called(1); 784 785 /* 786 * Calculate the number of request structures/commands we are 787 * going to provide for this adapter. 788 */ 789 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 790 791 if (bootverbose) 792 ciss_printf(sc, "using %d of %d available commands\n", 793 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 794 795 /* 796 * Create the DMA tag for commands. 797 */ 798 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 799 1, 0, /* alignment, boundary */ 800 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 801 BUS_SPACE_MAXADDR, /* highaddr */ 802 NULL, NULL, /* filter, filterarg */ 803 CISS_COMMAND_ALLOC_SIZE * 804 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 805 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 806 BUS_DMA_ALLOCNOW, /* flags */ 807 &sc->ciss_command_dmat)) { 808 ciss_printf(sc, "can't allocate command DMA tag\n"); 809 return(ENOMEM); 810 } 811 /* 812 * Allocate memory and make it available for DMA. 813 */ 814 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 815 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 816 ciss_printf(sc, "can't allocate command memory\n"); 817 return(ENOMEM); 818 } 819 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command, 820 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 821 ciss_command_map_helper, sc, 0); 822 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 823 824 /* 825 * Set up the request and command structures, push requests onto 826 * the free queue. 827 */ 828 for (i = 1; i < sc->ciss_max_requests; i++) { 829 cr = &sc->ciss_request[i]; 830 cr->cr_sc = sc; 831 cr->cr_tag = i; 832 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 833 ciss_enqueue_free(cr); 834 } 835 return(0); 836 } 837 838 static void 839 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 840 { 841 struct ciss_softc *sc = (struct ciss_softc *)arg; 842 843 sc->ciss_command_phys = segs->ds_addr; 844 } 845 846 /************************************************************************ 847 * Identify the adapter, print some information about it. 848 */ 849 static int 850 ciss_identify_adapter(struct ciss_softc *sc) 851 { 852 struct ciss_request *cr; 853 int error, command_status; 854 855 debug_called(1); 856 857 cr = NULL; 858 859 /* 860 * Get a request, allocate storage for the adapter data. 861 */ 862 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 863 (void **)&sc->ciss_id, 864 sizeof(*sc->ciss_id))) != 0) 865 goto out; 866 867 /* 868 * Submit the request and wait for it to complete. 869 */ 870 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 871 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 872 goto out; 873 } 874 875 /* 876 * Check response. 877 */ 878 ciss_report_request(cr, &command_status, NULL); 879 switch(command_status) { 880 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 881 break; 882 case CISS_CMD_STATUS_DATA_UNDERRUN: 883 case CISS_CMD_STATUS_DATA_OVERRUN: 884 ciss_printf(sc, "data over/underrun reading adapter information\n"); 885 default: 886 ciss_printf(sc, "error reading adapter information (%s)\n", 887 ciss_name_command_status(command_status)); 888 error = EIO; 889 goto out; 890 } 891 892 /* sanity-check reply */ 893 if (!sc->ciss_id->big_map_supported) { 894 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 895 error = ENXIO; 896 goto out; 897 } 898 899 #if 0 900 /* XXX later revisions may not need this */ 901 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 902 #endif 903 904 /* XXX only really required for old 5300 adapters? */ 905 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 906 907 /* print information */ 908 if (bootverbose) { 909 #if 0 /* XXX proxy volumes??? */ 910 ciss_printf(sc, " %d logical drive%s configured\n", 911 sc->ciss_id->configured_logical_drives, 912 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 913 #endif 914 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 915 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 916 917 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 918 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 919 ciss_printf(sc, " supported I/O methods 0x%b\n", 920 sc->ciss_cfg->supported_methods, 921 "\20\1READY\2simple\3performant\4MEMQ\n"); 922 ciss_printf(sc, " active I/O method 0x%b\n", 923 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 924 ciss_printf(sc, " 4G page base 0x%08x\n", 925 sc->ciss_cfg->command_physlimit); 926 ciss_printf(sc, " interrupt coalesce delay %dus\n", 927 sc->ciss_cfg->interrupt_coalesce_delay); 928 ciss_printf(sc, " interrupt coalesce count %d\n", 929 sc->ciss_cfg->interrupt_coalesce_count); 930 ciss_printf(sc, " max outstanding commands %d\n", 931 sc->ciss_cfg->max_outstanding_commands); 932 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 933 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 934 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 935 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 936 } 937 938 out: 939 if (error) { 940 if (sc->ciss_id != NULL) { 941 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 942 sc->ciss_id = NULL; 943 } 944 } 945 if (cr != NULL) 946 ciss_release_request(cr); 947 return(error); 948 } 949 950 /************************************************************************ 951 * Helper routine for generating a list of logical and physical luns. 952 */ 953 static struct ciss_lun_report * 954 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 955 { 956 struct ciss_request *cr; 957 struct ciss_command *cc; 958 struct ciss_report_cdb *crc; 959 struct ciss_lun_report *cll; 960 int command_status; 961 int report_size; 962 int error = 0; 963 964 debug_called(1); 965 966 cr = NULL; 967 cll = NULL; 968 969 /* 970 * Get a request, allocate storage for the address list. 971 */ 972 if ((error = ciss_get_request(sc, &cr)) != 0) 973 goto out; 974 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 975 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 976 977 /* 978 * Build the Report Logical/Physical LUNs command. 979 */ 980 cc = CISS_FIND_COMMAND(cr); 981 cr->cr_data = cll; 982 cr->cr_length = report_size; 983 cr->cr_flags = CISS_REQ_DATAIN; 984 985 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 986 cc->header.address.physical.bus = 0; 987 cc->header.address.physical.target = 0; 988 cc->cdb.cdb_length = sizeof(*crc); 989 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 990 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 991 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 992 cc->cdb.timeout = 30; /* XXX better suggestions? */ 993 994 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 995 bzero(crc, sizeof(*crc)); 996 crc->opcode = opcode; 997 crc->length = htonl(report_size); /* big-endian field */ 998 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 999 1000 /* 1001 * Submit the request and wait for it to complete. (timeout 1002 * here should be much greater than above) 1003 */ 1004 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1005 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1006 goto out; 1007 } 1008 1009 /* 1010 * Check response. Note that data over/underrun is OK. 1011 */ 1012 ciss_report_request(cr, &command_status, NULL); 1013 switch(command_status) { 1014 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1015 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1016 break; 1017 case CISS_CMD_STATUS_DATA_OVERRUN: 1018 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1019 CISS_MAX_LOGICAL); 1020 break; 1021 default: 1022 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1023 ciss_name_command_status(command_status)); 1024 error = EIO; 1025 goto out; 1026 } 1027 ciss_release_request(cr); 1028 cr = NULL; 1029 1030 out: 1031 if (cr != NULL) 1032 ciss_release_request(cr); 1033 if (error && cll != NULL) { 1034 kfree(cll, CISS_MALLOC_CLASS); 1035 cll = NULL; 1036 } 1037 return(cll); 1038 } 1039 1040 /************************************************************************ 1041 * Find logical drives on the adapter. 1042 */ 1043 static int 1044 ciss_init_logical(struct ciss_softc *sc) 1045 { 1046 struct ciss_lun_report *cll; 1047 int error = 0, i, j; 1048 int ndrives; 1049 1050 debug_called(1); 1051 1052 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1053 CISS_MAX_LOGICAL); 1054 if (cll == NULL) { 1055 error = ENXIO; 1056 goto out; 1057 } 1058 1059 /* sanity-check reply */ 1060 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1061 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1062 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1063 ndrives, CISS_MAX_LOGICAL); 1064 error = ENXIO; 1065 goto out; 1066 } 1067 1068 /* 1069 * Save logical drive information. 1070 */ 1071 if (bootverbose) { 1072 ciss_printf(sc, "%d logical drive%s\n", 1073 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1074 } 1075 1076 sc->ciss_logical = 1077 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1078 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1079 1080 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1081 sc->ciss_logical[i] = 1082 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1083 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1084 1085 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1086 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1087 } 1088 1089 1090 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1091 if (i < ndrives) { 1092 struct ciss_ldrive *ld; 1093 int bus, target; 1094 1095 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1096 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1097 ld = &sc->ciss_logical[bus][target]; 1098 1099 ld->cl_address = cll->lun[i]; 1100 ld->cl_controller = &sc->ciss_controllers[bus]; 1101 if (ciss_identify_logical(sc, ld) != 0) 1102 continue; 1103 /* 1104 * If the drive has had media exchanged, we should bring it online. 1105 */ 1106 if (ld->cl_lstatus->media_exchanged) 1107 ciss_accept_media(sc, ld); 1108 1109 } 1110 } 1111 1112 out: 1113 if (cll != NULL) 1114 kfree(cll, CISS_MALLOC_CLASS); 1115 return(error); 1116 } 1117 1118 static int 1119 ciss_init_physical(struct ciss_softc *sc) 1120 { 1121 struct ciss_lun_report *cll; 1122 int error = 0, i; 1123 int nphys; 1124 int bus, target; 1125 1126 debug_called(1); 1127 1128 bus = 0; 1129 target = 0; 1130 1131 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1132 CISS_MAX_PHYSICAL); 1133 if (cll == NULL) { 1134 error = ENXIO; 1135 goto out; 1136 } 1137 1138 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1139 1140 if (bootverbose) { 1141 ciss_printf(sc, "%d physical device%s\n", 1142 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1143 } 1144 1145 /* 1146 * Figure out the bus mapping. 1147 * Logical buses include both the local logical bus for local arrays and 1148 * proxy buses for remote arrays. Physical buses are numbered by the 1149 * controller and represent physical buses that hold physical devices. 1150 * We shift these bus numbers so that everything fits into a single flat 1151 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1152 * numbers, and the physical bus numbers are shifted to be above that. 1153 * This results in the various driver arrays being indexed as follows: 1154 * 1155 * ciss_controllers[] - indexed by logical bus 1156 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1157 * being shifted by 32. 1158 * ciss_logical[][] - indexed by logical bus 1159 * ciss_physical[][] - indexed by physical bus 1160 * 1161 * XXX This is getting more and more hackish. CISS really doesn't play 1162 * well with a standard SCSI model; devices are addressed via magic 1163 * cookies, not via b/t/l addresses. Since there is no way to store 1164 * the cookie in the CAM device object, we have to keep these lookup 1165 * tables handy so that the devices can be found quickly at the cost 1166 * of wasting memory and having a convoluted lookup scheme. This 1167 * driver should probably be converted to block interface. 1168 */ 1169 /* 1170 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1171 * controller. A proxy controller is another physical controller 1172 * behind the primary PCI controller. We need to know about this 1173 * so that BMIC commands can be properly targeted. There can be 1174 * proxy controllers attached to a single PCI controller, so 1175 * find the highest numbered one so the array can be properly 1176 * sized. 1177 */ 1178 sc->ciss_max_logical_bus = 1; 1179 for (i = 0; i < nphys; i++) { 1180 if (cll->lun[i].physical.extra_address == 0) { 1181 bus = cll->lun[i].physical.bus; 1182 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1183 } else { 1184 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1185 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1186 } 1187 } 1188 1189 sc->ciss_controllers = 1190 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1191 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1192 1193 /* setup a map of controller addresses */ 1194 for (i = 0; i < nphys; i++) { 1195 if (cll->lun[i].physical.extra_address == 0) { 1196 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1197 } 1198 } 1199 1200 sc->ciss_physical = 1201 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1202 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1203 1204 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1205 sc->ciss_physical[i] = 1206 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1207 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1208 } 1209 1210 ciss_filter_physical(sc, cll); 1211 1212 out: 1213 if (cll != NULL) 1214 kfree(cll, CISS_MALLOC_CLASS); 1215 1216 return(error); 1217 } 1218 1219 static int 1220 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1221 { 1222 u_int32_t ea; 1223 int i, nphys; 1224 int bus, target; 1225 1226 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1227 for (i = 0; i < nphys; i++) { 1228 if (cll->lun[i].physical.extra_address == 0) 1229 continue; 1230 1231 /* 1232 * Filter out devices that we don't want. Level 3 LUNs could 1233 * probably be supported, but the docs don't give enough of a 1234 * hint to know how. 1235 * 1236 * The mode field of the physical address is likely set to have 1237 * hard disks masked out. Honor it unless the user has overridden 1238 * us with the tunable. We also munge the inquiry data for these 1239 * disks so that they only show up as passthrough devices. Keeping 1240 * them visible in this fashion is useful for doing things like 1241 * flashing firmware. 1242 */ 1243 ea = cll->lun[i].physical.extra_address; 1244 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1245 (CISS_EXTRA_MODE2(ea) == 0x3)) 1246 continue; 1247 if ((ciss_expose_hidden_physical == 0) && 1248 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1249 continue; 1250 1251 /* 1252 * Note: CISS firmware numbers physical busses starting at '1', not 1253 * '0'. This numbering is internal to the firmware and is only 1254 * used as a hint here. 1255 */ 1256 bus = CISS_EXTRA_BUS2(ea) - 1; 1257 target = CISS_EXTRA_TARGET2(ea); 1258 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1259 sc->ciss_physical[bus][target].cp_online = 1; 1260 } 1261 1262 return (0); 1263 } 1264 1265 static int 1266 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1267 { 1268 struct ciss_request *cr; 1269 struct ciss_command *cc; 1270 struct scsi_inquiry *inq; 1271 int error; 1272 int command_status; 1273 1274 cr = NULL; 1275 1276 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1277 1278 if ((error = ciss_get_request(sc, &cr)) != 0) 1279 goto out; 1280 1281 cc = CISS_FIND_COMMAND(cr); 1282 cr->cr_data = &ld->cl_geometry; 1283 cr->cr_length = sizeof(ld->cl_geometry); 1284 cr->cr_flags = CISS_REQ_DATAIN; 1285 1286 cc->header.address = ld->cl_address; 1287 cc->cdb.cdb_length = 6; 1288 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1289 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1290 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1291 cc->cdb.timeout = 30; 1292 1293 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1294 inq->opcode = INQUIRY; 1295 inq->byte2 = SI_EVPD; 1296 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1297 inq->length = sizeof(ld->cl_geometry); 1298 1299 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1300 ciss_printf(sc, "error getting geometry (%d)\n", error); 1301 goto out; 1302 } 1303 1304 ciss_report_request(cr, &command_status, NULL); 1305 switch(command_status) { 1306 case CISS_CMD_STATUS_SUCCESS: 1307 case CISS_CMD_STATUS_DATA_UNDERRUN: 1308 break; 1309 case CISS_CMD_STATUS_DATA_OVERRUN: 1310 ciss_printf(sc, "WARNING: Data overrun\n"); 1311 break; 1312 default: 1313 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1314 ciss_name_command_status(command_status)); 1315 break; 1316 } 1317 1318 out: 1319 if (cr != NULL) 1320 ciss_release_request(cr); 1321 return(error); 1322 } 1323 /************************************************************************ 1324 * Identify a logical drive, initialise state related to it. 1325 */ 1326 static int 1327 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1328 { 1329 struct ciss_request *cr; 1330 struct ciss_command *cc; 1331 struct ciss_bmic_cdb *cbc; 1332 int error, command_status; 1333 1334 debug_called(1); 1335 1336 cr = NULL; 1337 1338 /* 1339 * Build a BMIC request to fetch the drive ID. 1340 */ 1341 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1342 (void **)&ld->cl_ldrive, 1343 sizeof(*ld->cl_ldrive))) != 0) 1344 goto out; 1345 cc = CISS_FIND_COMMAND(cr); 1346 cc->header.address = *ld->cl_controller; /* target controller */ 1347 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1348 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1349 1350 /* 1351 * Submit the request and wait for it to complete. 1352 */ 1353 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1354 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1355 goto out; 1356 } 1357 1358 /* 1359 * Check response. 1360 */ 1361 ciss_report_request(cr, &command_status, NULL); 1362 switch(command_status) { 1363 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1364 break; 1365 case CISS_CMD_STATUS_DATA_UNDERRUN: 1366 case CISS_CMD_STATUS_DATA_OVERRUN: 1367 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1368 default: 1369 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1370 ciss_name_command_status(command_status)); 1371 error = EIO; 1372 goto out; 1373 } 1374 ciss_release_request(cr); 1375 cr = NULL; 1376 1377 /* 1378 * Build a CISS BMIC command to get the logical drive status. 1379 */ 1380 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1381 goto out; 1382 1383 /* 1384 * Get the logical drive geometry. 1385 */ 1386 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1387 goto out; 1388 1389 /* 1390 * Print the drive's basic characteristics. 1391 */ 1392 if (bootverbose) { 1393 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1394 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1395 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1396 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1397 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1398 ld->cl_ldrive->block_size)); 1399 1400 ciss_print_ldrive(sc, ld); 1401 } 1402 out: 1403 if (error != 0) { 1404 /* make the drive not-exist */ 1405 ld->cl_status = CISS_LD_NONEXISTENT; 1406 if (ld->cl_ldrive != NULL) { 1407 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1408 ld->cl_ldrive = NULL; 1409 } 1410 if (ld->cl_lstatus != NULL) { 1411 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1412 ld->cl_lstatus = NULL; 1413 } 1414 } 1415 if (cr != NULL) 1416 ciss_release_request(cr); 1417 1418 return(error); 1419 } 1420 1421 /************************************************************************ 1422 * Get status for a logical drive. 1423 * 1424 * XXX should we also do this in response to Test Unit Ready? 1425 */ 1426 static int 1427 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1428 { 1429 struct ciss_request *cr; 1430 struct ciss_command *cc; 1431 struct ciss_bmic_cdb *cbc; 1432 int error, command_status; 1433 1434 /* 1435 * Build a CISS BMIC command to get the logical drive status. 1436 */ 1437 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1438 (void **)&ld->cl_lstatus, 1439 sizeof(*ld->cl_lstatus))) != 0) 1440 goto out; 1441 cc = CISS_FIND_COMMAND(cr); 1442 cc->header.address = *ld->cl_controller; /* target controller */ 1443 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1444 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1445 1446 /* 1447 * Submit the request and wait for it to complete. 1448 */ 1449 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1450 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1451 goto out; 1452 } 1453 1454 /* 1455 * Check response. 1456 */ 1457 ciss_report_request(cr, &command_status, NULL); 1458 switch(command_status) { 1459 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1460 break; 1461 case CISS_CMD_STATUS_DATA_UNDERRUN: 1462 case CISS_CMD_STATUS_DATA_OVERRUN: 1463 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1464 default: 1465 ciss_printf(sc, "error reading logical drive status (%s)\n", 1466 ciss_name_command_status(command_status)); 1467 error = EIO; 1468 goto out; 1469 } 1470 1471 /* 1472 * Set the drive's summary status based on the returned status. 1473 * 1474 * XXX testing shows that a failed JBOD drive comes back at next 1475 * boot in "queued for expansion" mode. WTF? 1476 */ 1477 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1478 1479 out: 1480 if (cr != NULL) 1481 ciss_release_request(cr); 1482 return(error); 1483 } 1484 1485 /************************************************************************ 1486 * Notify the adapter of a config update. 1487 */ 1488 static int 1489 ciss_update_config(struct ciss_softc *sc) 1490 { 1491 int i; 1492 1493 debug_called(1); 1494 1495 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1496 for (i = 0; i < 1000; i++) { 1497 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1498 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1499 return(0); 1500 } 1501 DELAY(1000); 1502 } 1503 return(1); 1504 } 1505 1506 /************************************************************************ 1507 * Accept new media into a logical drive. 1508 * 1509 * XXX The drive has previously been offline; it would be good if we 1510 * could make sure it's not open right now. 1511 */ 1512 static int 1513 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1514 { 1515 struct ciss_request *cr; 1516 struct ciss_command *cc; 1517 struct ciss_bmic_cdb *cbc; 1518 int command_status; 1519 int error = 0, ldrive; 1520 1521 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1522 1523 debug(0, "bringing logical drive %d back online", ldrive); 1524 1525 /* 1526 * Build a CISS BMIC command to bring the drive back online. 1527 */ 1528 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1529 NULL, 0)) != 0) 1530 goto out; 1531 cc = CISS_FIND_COMMAND(cr); 1532 cc->header.address = *ld->cl_controller; /* target controller */ 1533 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1534 cbc->log_drive = ldrive; 1535 1536 /* 1537 * Submit the request and wait for it to complete. 1538 */ 1539 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1540 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1541 goto out; 1542 } 1543 1544 /* 1545 * Check response. 1546 */ 1547 ciss_report_request(cr, &command_status, NULL); 1548 switch(command_status) { 1549 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1550 /* we should get a logical drive status changed event here */ 1551 break; 1552 default: 1553 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1554 ciss_name_command_status(command_status)); 1555 break; 1556 } 1557 1558 out: 1559 if (cr != NULL) 1560 ciss_release_request(cr); 1561 return(error); 1562 } 1563 1564 /************************************************************************ 1565 * Release adapter resources. 1566 */ 1567 static void 1568 ciss_free(struct ciss_softc *sc) 1569 { 1570 struct ciss_request *cr; 1571 int i; 1572 1573 debug_called(1); 1574 1575 /* we're going away */ 1576 sc->ciss_flags |= CISS_FLAG_ABORTING; 1577 1578 /* terminate the periodic heartbeat routine */ 1579 callout_stop(&sc->ciss_periodic); 1580 1581 /* cancel the Event Notify chain */ 1582 ciss_notify_abort(sc); 1583 1584 ciss_kill_notify_thread(sc); 1585 1586 /* remove the control device */ 1587 if (sc->ciss_dev_t != NULL) 1588 destroy_dev(sc->ciss_dev_t); 1589 1590 /* free the controller data */ 1591 if (sc->ciss_id != NULL) 1592 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1593 1594 /* release I/O resources */ 1595 if (sc->ciss_regs_resource != NULL) 1596 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1597 sc->ciss_regs_rid, sc->ciss_regs_resource); 1598 if (sc->ciss_cfg_resource != NULL) 1599 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1600 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1601 if (sc->ciss_intr != NULL) 1602 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1603 if (sc->ciss_irq_resource != NULL) 1604 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1605 sc->ciss_irq_rid, sc->ciss_irq_resource); 1606 1607 /* destroy DMA tags */ 1608 if (sc->ciss_parent_dmat) 1609 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1610 1611 while ((cr = ciss_dequeue_free(sc)) != NULL) 1612 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1613 if (sc->ciss_buffer_dmat) 1614 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1615 1616 /* destroy command memory and DMA tag */ 1617 if (sc->ciss_command != NULL) { 1618 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1619 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1620 } 1621 if (sc->ciss_command_dmat) 1622 bus_dma_tag_destroy(sc->ciss_command_dmat); 1623 1624 /* disconnect from CAM */ 1625 if (sc->ciss_cam_sim) { 1626 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1627 if (sc->ciss_cam_sim[i]) { 1628 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1629 cam_sim_free(sc->ciss_cam_sim[i]); 1630 } 1631 } 1632 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1633 CISS_PHYSICAL_BASE; i++) { 1634 if (sc->ciss_cam_sim[i]) { 1635 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1636 cam_sim_free(sc->ciss_cam_sim[i]); 1637 } 1638 } 1639 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1640 } 1641 if (sc->ciss_cam_devq) 1642 cam_simq_release(sc->ciss_cam_devq); 1643 1644 if (sc->ciss_logical) { 1645 for (i = 0; i < sc->ciss_max_logical_bus; i++) 1646 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1647 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1648 } 1649 1650 if (sc->ciss_physical) { 1651 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1652 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1653 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1654 } 1655 1656 if (sc->ciss_controllers) 1657 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1658 } 1659 1660 /************************************************************************ 1661 * Give a command to the adapter. 1662 * 1663 * Note that this uses the simple transport layer directly. If we 1664 * want to add support for other layers, we'll need a switch of some 1665 * sort. 1666 * 1667 * Note that the simple transport layer has no way of refusing a 1668 * command; we only have as many request structures as the adapter 1669 * supports commands, so we don't have to check (this presumes that 1670 * the adapter can handle commands as fast as we throw them at it). 1671 */ 1672 static int 1673 ciss_start(struct ciss_request *cr) 1674 { 1675 struct ciss_command *cc; /* XXX debugging only */ 1676 int error; 1677 1678 cc = CISS_FIND_COMMAND(cr); 1679 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1680 1681 /* 1682 * Map the request's data. 1683 */ 1684 if ((error = ciss_map_request(cr))) 1685 return(error); 1686 1687 #if 0 1688 ciss_print_request(cr); 1689 #endif 1690 1691 return(0); 1692 } 1693 1694 /************************************************************************ 1695 * Fetch completed request(s) from the adapter, queue them for 1696 * completion handling. 1697 * 1698 * Note that this uses the simple transport layer directly. If we 1699 * want to add support for other layers, we'll need a switch of some 1700 * sort. 1701 * 1702 * Note that the simple transport mechanism does not require any 1703 * reentrancy protection; the OPQ read is atomic. If there is a 1704 * chance of a race with something else that might move the request 1705 * off the busy list, then we will have to lock against that 1706 * (eg. timeouts, etc.) 1707 */ 1708 static void 1709 ciss_done(struct ciss_softc *sc) 1710 { 1711 struct ciss_request *cr; 1712 struct ciss_command *cc; 1713 u_int32_t tag, index; 1714 int complete; 1715 1716 debug_called(3); 1717 1718 /* 1719 * Loop quickly taking requests from the adapter and moving them 1720 * from the busy queue to the completed queue. 1721 */ 1722 complete = 0; 1723 for (;;) { 1724 1725 /* see if the OPQ contains anything */ 1726 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 1727 break; 1728 1729 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 1730 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 1731 break; 1732 index = tag >> 2; 1733 debug(2, "completed command %d%s", index, 1734 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 1735 if (index >= sc->ciss_max_requests) { 1736 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 1737 continue; 1738 } 1739 cr = &(sc->ciss_request[index]); 1740 cc = CISS_FIND_COMMAND(cr); 1741 cc->header.host_tag = tag; /* not updated by adapter */ 1742 if (ciss_remove_busy(cr)) { 1743 /* assume this is garbage out of the adapter */ 1744 ciss_printf(sc, "completed nonbusy request %d\n", index); 1745 } else { 1746 ciss_enqueue_complete(cr); 1747 } 1748 complete = 1; 1749 } 1750 1751 /* 1752 * Invoke completion processing. If we can defer this out of 1753 * interrupt context, that'd be good. 1754 */ 1755 if (complete) 1756 ciss_complete(sc); 1757 } 1758 1759 /************************************************************************ 1760 * Take an interrupt from the adapter. 1761 */ 1762 static void 1763 ciss_intr(void *arg) 1764 { 1765 struct ciss_softc *sc = (struct ciss_softc *)arg; 1766 1767 /* 1768 * The only interrupt we recognise indicates that there are 1769 * entries in the outbound post queue. 1770 */ 1771 ciss_done(sc); 1772 } 1773 1774 /************************************************************************ 1775 * Process completed requests. 1776 * 1777 * Requests can be completed in three fashions: 1778 * 1779 * - by invoking a callback function (cr_complete is non-null) 1780 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 1781 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 1782 */ 1783 static void 1784 ciss_complete(struct ciss_softc *sc) 1785 { 1786 struct ciss_request *cr; 1787 1788 debug_called(2); 1789 1790 /* 1791 * Loop taking requests off the completed queue and performing 1792 * completion processing on them. 1793 */ 1794 for (;;) { 1795 if ((cr = ciss_dequeue_complete(sc)) == NULL) 1796 break; 1797 ciss_unmap_request(cr); 1798 1799 /* 1800 * If the request has a callback, invoke it. 1801 */ 1802 if (cr->cr_complete != NULL) { 1803 cr->cr_complete(cr); 1804 continue; 1805 } 1806 1807 /* 1808 * If someone is sleeping on this request, wake them up. 1809 */ 1810 if (cr->cr_flags & CISS_REQ_SLEEP) { 1811 cr->cr_flags &= ~CISS_REQ_SLEEP; 1812 wakeup(cr); 1813 continue; 1814 } 1815 1816 /* 1817 * If someone is polling this request for completion, signal. 1818 */ 1819 if (cr->cr_flags & CISS_REQ_POLL) { 1820 cr->cr_flags &= ~CISS_REQ_POLL; 1821 continue; 1822 } 1823 1824 /* 1825 * Give up and throw the request back on the free queue. This 1826 * should never happen; resources will probably be lost. 1827 */ 1828 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 1829 ciss_enqueue_free(cr); 1830 } 1831 } 1832 1833 /************************************************************************ 1834 * Report on the completion status of a request, and pass back SCSI 1835 * and command status values. 1836 */ 1837 static int 1838 ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status) 1839 { 1840 struct ciss_command *cc; 1841 struct ciss_error_info *ce; 1842 1843 debug_called(2); 1844 1845 cc = CISS_FIND_COMMAND(cr); 1846 ce = (struct ciss_error_info *)&(cc->sg[0]); 1847 1848 /* 1849 * We don't consider data under/overrun an error for the Report 1850 * Logical/Physical LUNs commands. 1851 */ 1852 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 1853 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 1854 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 1855 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 1856 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 1857 (cc->cdb.cdb[0] == INQUIRY))) { 1858 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 1859 debug(2, "ignoring irrelevant under/overrun error"); 1860 } 1861 1862 /* 1863 * Check the command's error bit, if clear, there's no status and 1864 * everything is OK. 1865 */ 1866 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 1867 if (scsi_status != NULL) 1868 *scsi_status = SCSI_STATUS_OK; 1869 if (command_status != NULL) 1870 *command_status = CISS_CMD_STATUS_SUCCESS; 1871 return(0); 1872 } else { 1873 if (command_status != NULL) 1874 *command_status = ce->command_status; 1875 if (scsi_status != NULL) { 1876 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 1877 *scsi_status = ce->scsi_status; 1878 } else { 1879 *scsi_status = -1; 1880 } 1881 } 1882 if (bootverbose) 1883 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 1884 ce->command_status, ciss_name_command_status(ce->command_status), 1885 ce->scsi_status); 1886 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 1887 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n", 1888 ce->additional_error_info.invalid_command.offense_size, 1889 ce->additional_error_info.invalid_command.offense_offset, 1890 ce->additional_error_info.invalid_command.offense_value); 1891 } 1892 } 1893 #if 0 1894 ciss_print_request(cr); 1895 #endif 1896 return(1); 1897 } 1898 1899 /************************************************************************ 1900 * Issue a request and don't return until it's completed. 1901 * 1902 * Depending on adapter status, we may poll or sleep waiting for 1903 * completion. 1904 */ 1905 static int 1906 ciss_synch_request(struct ciss_request *cr, int timeout) 1907 { 1908 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 1909 return(ciss_wait_request(cr, timeout)); 1910 } else { 1911 return(ciss_poll_request(cr, timeout)); 1912 } 1913 } 1914 1915 /************************************************************************ 1916 * Issue a request and poll for completion. 1917 * 1918 * Timeout in milliseconds. 1919 */ 1920 static int 1921 ciss_poll_request(struct ciss_request *cr, int timeout) 1922 { 1923 int error; 1924 1925 debug_called(2); 1926 1927 cr->cr_flags |= CISS_REQ_POLL; 1928 if ((error = ciss_start(cr)) != 0) 1929 return(error); 1930 1931 do { 1932 ciss_done(cr->cr_sc); 1933 if (!(cr->cr_flags & CISS_REQ_POLL)) 1934 return(0); 1935 DELAY(1000); 1936 } while (timeout-- >= 0); 1937 return(EWOULDBLOCK); 1938 } 1939 1940 /************************************************************************ 1941 * Issue a request and sleep waiting for completion. 1942 * 1943 * Timeout in milliseconds. Note that a spurious wakeup will reset 1944 * the timeout. 1945 */ 1946 static int 1947 ciss_wait_request(struct ciss_request *cr, int timeout) 1948 { 1949 int error; 1950 1951 debug_called(2); 1952 1953 cr->cr_flags |= CISS_REQ_SLEEP; 1954 if ((error = ciss_start(cr)) != 0) 1955 return(error); 1956 1957 crit_enter(); 1958 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 1959 error = tsleep(cr, 0, "cissREQ", (timeout * hz) / 1000); 1960 } 1961 crit_exit(); 1962 return(error); 1963 } 1964 1965 #if 0 1966 /************************************************************************ 1967 * Abort a request. Note that a potential exists here to race the 1968 * request being completed; the caller must deal with this. 1969 */ 1970 static int 1971 ciss_abort_request(struct ciss_request *ar) 1972 { 1973 struct ciss_request *cr; 1974 struct ciss_command *cc; 1975 struct ciss_message_cdb *cmc; 1976 int error; 1977 1978 debug_called(1); 1979 1980 /* get a request */ 1981 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 1982 return(error); 1983 1984 /* build the abort command */ 1985 cc = CISS_FIND_COMMAND(cr); 1986 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 1987 cc->header.address.physical.target = 0; 1988 cc->header.address.physical.bus = 0; 1989 cc->cdb.cdb_length = sizeof(*cmc); 1990 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 1991 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1992 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 1993 cc->cdb.timeout = 30; 1994 1995 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 1996 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 1997 cmc->type = CISS_MESSAGE_ABORT_TASK; 1998 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 1999 2000 /* 2001 * Send the request and wait for a response. If we believe we 2002 * aborted the request OK, clear the flag that indicates it's 2003 * running. 2004 */ 2005 error = ciss_synch_request(cr, 35 * 1000); 2006 if (!error) 2007 error = ciss_report_request(cr, NULL, NULL); 2008 ciss_release_request(cr); 2009 2010 return(error); 2011 } 2012 #endif 2013 2014 2015 /************************************************************************ 2016 * Fetch and initialise a request 2017 */ 2018 static int 2019 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2020 { 2021 struct ciss_request *cr; 2022 2023 debug_called(2); 2024 2025 /* 2026 * Get a request and clean it up. 2027 */ 2028 if ((cr = ciss_dequeue_free(sc)) == NULL) 2029 return(ENOMEM); 2030 2031 cr->cr_data = NULL; 2032 cr->cr_flags = 0; 2033 cr->cr_complete = NULL; 2034 cr->cr_private = NULL; 2035 2036 ciss_preen_command(cr); 2037 *crp = cr; 2038 return(0); 2039 } 2040 2041 static void 2042 ciss_preen_command(struct ciss_request *cr) 2043 { 2044 struct ciss_command *cc; 2045 u_int32_t cmdphys; 2046 2047 /* 2048 * Clean up the command structure. 2049 * 2050 * Note that we set up the error_info structure here, since the 2051 * length can be overwritten by any command. 2052 */ 2053 cc = CISS_FIND_COMMAND(cr); 2054 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2055 cc->header.sg_total = 0; 2056 cc->header.host_tag = cr->cr_tag << 2; 2057 cc->header.host_tag_zeroes = 0; 2058 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2059 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2060 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2061 } 2062 2063 /************************************************************************ 2064 * Release a request to the free list. 2065 */ 2066 static void 2067 ciss_release_request(struct ciss_request *cr) 2068 { 2069 struct ciss_softc *sc; 2070 2071 debug_called(2); 2072 2073 sc = cr->cr_sc; 2074 2075 /* release the request to the free queue */ 2076 ciss_requeue_free(cr); 2077 } 2078 2079 /************************************************************************ 2080 * Allocate a request that will be used to send a BMIC command. Do some 2081 * of the common setup here to avoid duplicating it everywhere else. 2082 */ 2083 static int 2084 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2085 int opcode, void **bufp, size_t bufsize) 2086 { 2087 struct ciss_request *cr; 2088 struct ciss_command *cc; 2089 struct ciss_bmic_cdb *cbc; 2090 void *buf; 2091 int error; 2092 int dataout; 2093 2094 debug_called(2); 2095 2096 cr = NULL; 2097 buf = NULL; 2098 2099 /* 2100 * Get a request. 2101 */ 2102 if ((error = ciss_get_request(sc, &cr)) != 0) 2103 goto out; 2104 2105 /* 2106 * Allocate data storage if requested, determine the data direction. 2107 */ 2108 dataout = 0; 2109 if ((bufsize > 0) && (bufp != NULL)) { 2110 if (*bufp == NULL) { 2111 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2112 } else { 2113 buf = *bufp; 2114 dataout = 1; /* we are given a buffer, so we are writing */ 2115 } 2116 } 2117 2118 /* 2119 * Build a CISS BMIC command to get the logical drive ID. 2120 */ 2121 cr->cr_data = buf; 2122 cr->cr_length = bufsize; 2123 if (!dataout) 2124 cr->cr_flags = CISS_REQ_DATAIN; 2125 2126 cc = CISS_FIND_COMMAND(cr); 2127 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2128 cc->header.address.physical.bus = 0; 2129 cc->header.address.physical.target = 0; 2130 cc->cdb.cdb_length = sizeof(*cbc); 2131 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2132 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2133 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2134 cc->cdb.timeout = 0; 2135 2136 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2137 bzero(cbc, sizeof(*cbc)); 2138 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2139 cbc->bmic_opcode = opcode; 2140 cbc->size = htons((u_int16_t)bufsize); 2141 2142 out: 2143 if (error) { 2144 if (cr != NULL) 2145 ciss_release_request(cr); 2146 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2147 kfree(buf, CISS_MALLOC_CLASS); 2148 } else { 2149 *crp = cr; 2150 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2151 *bufp = buf; 2152 } 2153 return(error); 2154 } 2155 2156 /************************************************************************ 2157 * Handle a command passed in from userspace. 2158 */ 2159 static int 2160 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2161 { 2162 struct ciss_request *cr; 2163 struct ciss_command *cc; 2164 struct ciss_error_info *ce; 2165 int error = 0; 2166 2167 debug_called(1); 2168 2169 cr = NULL; 2170 2171 /* 2172 * Get a request. 2173 */ 2174 if ((error = ciss_get_request(sc, &cr)) != 0) 2175 goto out; 2176 cc = CISS_FIND_COMMAND(cr); 2177 2178 /* 2179 * Allocate an in-kernel databuffer if required, copy in user data. 2180 */ 2181 cr->cr_length = ioc->buf_size; 2182 if (ioc->buf_size > 0) { 2183 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2184 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2185 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2186 goto out; 2187 } 2188 } 2189 2190 /* 2191 * Build the request based on the user command. 2192 */ 2193 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2194 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2195 2196 /* XXX anything else to populate here? */ 2197 2198 /* 2199 * Run the command. 2200 */ 2201 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2202 debug(0, "request failed - %d", error); 2203 goto out; 2204 } 2205 2206 /* 2207 * Check to see if the command succeeded. 2208 */ 2209 ce = (struct ciss_error_info *)&(cc->sg[0]); 2210 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2211 bzero(ce, sizeof(*ce)); 2212 2213 /* 2214 * Copy the results back to the user. 2215 */ 2216 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2217 if ((ioc->buf_size > 0) && 2218 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2219 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2220 goto out; 2221 } 2222 2223 /* done OK */ 2224 error = 0; 2225 2226 out: 2227 if ((cr != NULL) && (cr->cr_data != NULL)) 2228 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2229 if (cr != NULL) 2230 ciss_release_request(cr); 2231 return(error); 2232 } 2233 2234 /************************************************************************ 2235 * Map a request into bus-visible space, initialise the scatter/gather 2236 * list. 2237 */ 2238 static int 2239 ciss_map_request(struct ciss_request *cr) 2240 { 2241 struct ciss_softc *sc; 2242 int error = 0; 2243 2244 debug_called(2); 2245 2246 sc = cr->cr_sc; 2247 2248 /* check that mapping is necessary */ 2249 if (cr->cr_flags & CISS_REQ_MAPPED) 2250 return(0); 2251 2252 cr->cr_flags |= CISS_REQ_MAPPED; 2253 2254 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2255 BUS_DMASYNC_PREWRITE); 2256 2257 if (cr->cr_data != NULL) { 2258 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2259 cr->cr_data, cr->cr_length, 2260 ciss_request_map_helper, cr, 0); 2261 if (error != 0) 2262 return (error); 2263 } else { 2264 /* 2265 * Post the command to the adapter. 2266 */ 2267 ciss_enqueue_busy(cr); 2268 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2269 } 2270 2271 return(0); 2272 } 2273 2274 static void 2275 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2276 { 2277 struct ciss_command *cc; 2278 struct ciss_request *cr; 2279 struct ciss_softc *sc; 2280 int i; 2281 2282 debug_called(2); 2283 2284 cr = (struct ciss_request *)arg; 2285 sc = cr->cr_sc; 2286 cc = CISS_FIND_COMMAND(cr); 2287 2288 for (i = 0; i < nseg; i++) { 2289 cc->sg[i].address = segs[i].ds_addr; 2290 cc->sg[i].length = segs[i].ds_len; 2291 cc->sg[i].extension = 0; 2292 } 2293 /* we leave the s/g table entirely within the command */ 2294 cc->header.sg_in_list = nseg; 2295 cc->header.sg_total = nseg; 2296 2297 if (cr->cr_flags & CISS_REQ_DATAIN) 2298 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2299 if (cr->cr_flags & CISS_REQ_DATAOUT) 2300 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2301 2302 /* 2303 * Post the command to the adapter. 2304 */ 2305 ciss_enqueue_busy(cr); 2306 CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr)); 2307 } 2308 2309 /************************************************************************ 2310 * Unmap a request from bus-visible space. 2311 */ 2312 static void 2313 ciss_unmap_request(struct ciss_request *cr) 2314 { 2315 struct ciss_softc *sc; 2316 2317 debug_called(2); 2318 2319 sc = cr->cr_sc; 2320 2321 /* check that unmapping is necessary */ 2322 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2323 return; 2324 2325 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2326 BUS_DMASYNC_POSTWRITE); 2327 2328 if (cr->cr_data == NULL) 2329 goto out; 2330 2331 if (cr->cr_flags & CISS_REQ_DATAIN) 2332 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2333 if (cr->cr_flags & CISS_REQ_DATAOUT) 2334 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2335 2336 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2337 out: 2338 cr->cr_flags &= ~CISS_REQ_MAPPED; 2339 } 2340 2341 /************************************************************************ 2342 * Attach the driver to CAM. 2343 * 2344 * We put all the logical drives on a single SCSI bus. 2345 */ 2346 static int 2347 ciss_cam_init(struct ciss_softc *sc) 2348 { 2349 int i, maxbus; 2350 2351 debug_called(1); 2352 2353 /* 2354 * Allocate a devq. We can reuse this for the masked physical 2355 * devices if we decide to export these as well. 2356 */ 2357 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2358 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2359 return(ENOMEM); 2360 } 2361 2362 /* 2363 * Create a SIM. 2364 * 2365 * This naturally wastes a bit of memory. The alternative is to allocate 2366 * and register each bus as it is found, and then track them on a linked 2367 * list. Unfortunately, the driver has a few places where it needs to 2368 * look up the SIM based solely on bus number, and it's unclear whether 2369 * a list traversal would work for these situations. 2370 */ 2371 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2372 CISS_PHYSICAL_BASE); 2373 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2374 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2375 2376 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2377 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2378 "ciss", sc, 2379 device_get_unit(sc->ciss_dev), 2380 &sim_mplock, 1, 2381 sc->ciss_max_requests - 2, 2382 sc->ciss_cam_devq)) == NULL) { 2383 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2384 return(ENOMEM); 2385 } 2386 2387 /* 2388 * Register bus with this SIM. 2389 */ 2390 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2391 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2392 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2393 return (ENXIO); 2394 } 2395 } 2396 } 2397 2398 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2399 CISS_PHYSICAL_BASE; i++) { 2400 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2401 "ciss", sc, 2402 device_get_unit(sc->ciss_dev), 2403 &sim_mplock, 1, 2404 sc->ciss_max_requests - 2, 2405 sc->ciss_cam_devq)) == NULL) { 2406 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2407 return (ENOMEM); 2408 } 2409 2410 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2411 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2412 return (ENXIO); 2413 } 2414 } 2415 2416 /* 2417 * Initiate a rescan of the bus. 2418 */ 2419 ciss_cam_rescan_all(sc); 2420 2421 return(0); 2422 } 2423 2424 /************************************************************************ 2425 * Initiate a rescan of the 'logical devices' SIM 2426 */ 2427 static void 2428 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2429 { 2430 struct cam_path *path; 2431 union ccb *ccb; 2432 2433 debug_called(1); 2434 2435 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2436 2437 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2438 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2439 ciss_printf(sc, "rescan failed (can't create path)\n"); 2440 kfree(ccb, M_TEMP); 2441 return; 2442 } 2443 2444 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2445 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2446 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2447 ccb->crcn.flags = CAM_FLAG_NONE; 2448 xpt_action(ccb); 2449 2450 /* scan is now in progress */ 2451 } 2452 2453 static void 2454 ciss_cam_rescan_all(struct ciss_softc *sc) 2455 { 2456 int i; 2457 2458 /* Rescan the logical buses */ 2459 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2460 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2461 /* Rescan the physical buses */ 2462 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2463 CISS_PHYSICAL_BASE; i++) 2464 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2465 } 2466 2467 static void 2468 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2469 { 2470 xpt_free_path(ccb->ccb_h.path); 2471 kfree(ccb, M_TEMP); 2472 } 2473 2474 /************************************************************************ 2475 * Handle requests coming from CAM 2476 */ 2477 static void 2478 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2479 { 2480 struct ciss_softc *sc; 2481 struct ccb_scsiio *csio; 2482 int bus, target; 2483 int physical; 2484 2485 sc = cam_sim_softc(sim); 2486 bus = cam_sim_bus(sim); 2487 csio = (struct ccb_scsiio *)&ccb->csio; 2488 target = csio->ccb_h.target_id; 2489 physical = CISS_IS_PHYSICAL(bus); 2490 2491 switch (ccb->ccb_h.func_code) { 2492 2493 /* perform SCSI I/O */ 2494 case XPT_SCSI_IO: 2495 if (!ciss_cam_action_io(sim, csio)) 2496 return; 2497 break; 2498 2499 /* perform geometry calculations */ 2500 case XPT_CALC_GEOMETRY: 2501 { 2502 struct ccb_calc_geometry *ccg = &ccb->ccg; 2503 struct ciss_ldrive *ld; 2504 2505 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2506 2507 ld = NULL; 2508 if (!physical) 2509 ld = &sc->ciss_logical[bus][target]; 2510 2511 /* 2512 * Use the cached geometry settings unless the fault tolerance 2513 * is invalid. 2514 */ 2515 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2516 u_int32_t secs_per_cylinder; 2517 2518 ccg->heads = 255; 2519 ccg->secs_per_track = 32; 2520 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2521 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2522 } else { 2523 ccg->heads = ld->cl_geometry.heads; 2524 ccg->secs_per_track = ld->cl_geometry.sectors; 2525 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2526 } 2527 ccb->ccb_h.status = CAM_REQ_CMP; 2528 break; 2529 } 2530 2531 /* handle path attribute inquiry */ 2532 case XPT_PATH_INQ: 2533 { 2534 struct ccb_pathinq *cpi = &ccb->cpi; 2535 2536 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2537 2538 cpi->version_num = 1; 2539 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2540 cpi->target_sprt = 0; 2541 cpi->hba_misc = 0; 2542 cpi->max_target = CISS_MAX_LOGICAL; 2543 cpi->max_lun = 0; /* 'logical drive' channel only */ 2544 cpi->initiator_id = CISS_MAX_LOGICAL; 2545 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2546 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2547 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2548 cpi->unit_number = cam_sim_unit(sim); 2549 cpi->bus_id = cam_sim_bus(sim); 2550 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2551 cpi->transport = XPORT_SPI; 2552 cpi->transport_version = 2; 2553 cpi->protocol = PROTO_SCSI; 2554 cpi->protocol_version = SCSI_REV_2; 2555 ccb->ccb_h.status = CAM_REQ_CMP; 2556 break; 2557 } 2558 2559 case XPT_GET_TRAN_SETTINGS: 2560 { 2561 struct ccb_trans_settings *cts = &ccb->cts; 2562 int bus, target; 2563 struct ccb_trans_settings_spi *spi = 2564 &cts->xport_specific.spi; 2565 2566 bus = cam_sim_bus(sim); 2567 target = cts->ccb_h.target_id; 2568 2569 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2570 /* disconnect always OK */ 2571 cts->protocol = PROTO_SCSI; 2572 cts->protocol_version = SCSI_REV_2; 2573 cts->transport = XPORT_SPI; 2574 cts->transport_version = 2; 2575 2576 spi->valid = CTS_SPI_VALID_DISC; 2577 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2578 2579 cts->ccb_h.status = CAM_REQ_CMP; 2580 break; 2581 } 2582 2583 default: /* we can't do this */ 2584 debug(1, "unsupported func_code = 0x%x", ccb->ccb_h.func_code); 2585 ccb->ccb_h.status = CAM_REQ_INVALID; 2586 break; 2587 } 2588 2589 xpt_done(ccb); 2590 } 2591 2592 /************************************************************************ 2593 * Handle a CAM SCSI I/O request. 2594 */ 2595 static int 2596 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 2597 { 2598 struct ciss_softc *sc; 2599 int bus, target; 2600 struct ciss_request *cr; 2601 struct ciss_command *cc; 2602 int error; 2603 2604 sc = cam_sim_softc(sim); 2605 bus = cam_sim_bus(sim); 2606 target = csio->ccb_h.target_id; 2607 2608 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 2609 2610 /* check that the CDB pointer is not to a physical address */ 2611 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 2612 debug(3, " CDB pointer is to physical address"); 2613 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2614 } 2615 2616 /* if there is data transfer, it must be to/from a virtual address */ 2617 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2618 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 2619 debug(3, " data pointer is to physical address"); 2620 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2621 } 2622 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 2623 debug(3, " data has premature s/g setup"); 2624 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2625 } 2626 } 2627 2628 /* abandon aborted ccbs or those that have failed validation */ 2629 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 2630 debug(3, "abandoning CCB due to abort/validation failure"); 2631 return(EINVAL); 2632 } 2633 2634 /* handle emulation of some SCSI commands ourself */ 2635 if (ciss_cam_emulate(sc, csio)) 2636 return(0); 2637 2638 /* 2639 * Get a request to manage this command. If we can't, return the 2640 * ccb, freeze the queue and flag so that we unfreeze it when a 2641 * request completes. 2642 */ 2643 if ((error = ciss_get_request(sc, &cr)) != 0) { 2644 xpt_freeze_simq(sim, 1); 2645 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2646 return(error); 2647 } 2648 2649 /* 2650 * Build the command. 2651 */ 2652 cc = CISS_FIND_COMMAND(cr); 2653 cr->cr_data = csio->data_ptr; 2654 cr->cr_length = csio->dxfer_len; 2655 cr->cr_complete = ciss_cam_complete; 2656 cr->cr_private = csio; 2657 2658 /* 2659 * Target the right logical volume. 2660 */ 2661 if (CISS_IS_PHYSICAL(bus)) 2662 cc->header.address = 2663 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 2664 else 2665 cc->header.address = 2666 sc->ciss_logical[bus][target].cl_address; 2667 cc->cdb.cdb_length = csio->cdb_len; 2668 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2669 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 2670 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 2671 cr->cr_flags = CISS_REQ_DATAOUT; 2672 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 2673 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2674 cr->cr_flags = CISS_REQ_DATAIN; 2675 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 2676 } else { 2677 cr->cr_flags = 0; 2678 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2679 } 2680 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 2681 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 2682 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 2683 } else { 2684 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 2685 } 2686 2687 /* 2688 * Submit the request to the adapter. 2689 * 2690 * Note that this may fail if we're unable to map the request (and 2691 * if we ever learn a transport layer other than simple, may fail 2692 * if the adapter rejects the command). 2693 */ 2694 if ((error = ciss_start(cr)) != 0) { 2695 xpt_freeze_simq(sim, 1); 2696 if (error == EINPROGRESS) { 2697 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2698 error = 0; 2699 } else { 2700 csio->ccb_h.status |= CAM_REQUEUE_REQ; 2701 ciss_release_request(cr); 2702 } 2703 return(error); 2704 } 2705 2706 return(0); 2707 } 2708 2709 /************************************************************************ 2710 * Emulate SCSI commands the adapter doesn't handle as we might like. 2711 */ 2712 static int 2713 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 2714 { 2715 int bus, target; 2716 u_int8_t opcode; 2717 2718 target = csio->ccb_h.target_id; 2719 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2720 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 2721 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 2722 2723 if (CISS_IS_PHYSICAL(bus)) { 2724 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 2725 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2726 xpt_done((union ccb *)csio); 2727 return(1); 2728 } else 2729 return(0); 2730 } 2731 2732 /* 2733 * Handle requests for volumes that don't exist or are not online. 2734 * A selection timeout is slightly better than an illegal request. 2735 * Other errors might be better. 2736 */ 2737 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 2738 csio->ccb_h.status = CAM_SEL_TIMEOUT; 2739 xpt_done((union ccb *)csio); 2740 return(1); 2741 } 2742 2743 /* if we have to fake Synchronise Cache */ 2744 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 2745 /* 2746 * If this is a Synchronise Cache command, typically issued when 2747 * a device is closed, flush the adapter and complete now. 2748 */ 2749 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2750 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 2751 ciss_flush_adapter(sc); 2752 csio->ccb_h.status = CAM_REQ_CMP; 2753 xpt_done((union ccb *)csio); 2754 return(1); 2755 } 2756 } 2757 2758 return(0); 2759 } 2760 2761 /************************************************************************ 2762 * Check for possibly-completed commands. 2763 */ 2764 static void 2765 ciss_cam_poll(struct cam_sim *sim) 2766 { 2767 struct ciss_softc *sc = cam_sim_softc(sim); 2768 2769 debug_called(2); 2770 2771 ciss_done(sc); 2772 } 2773 2774 /************************************************************************ 2775 * Handle completion of a command - pass results back through the CCB 2776 */ 2777 static void 2778 ciss_cam_complete(struct ciss_request *cr) 2779 { 2780 struct ciss_softc *sc; 2781 struct ciss_command *cc; 2782 struct ciss_error_info *ce; 2783 struct ccb_scsiio *csio; 2784 int scsi_status; 2785 int command_status; 2786 2787 debug_called(2); 2788 2789 sc = cr->cr_sc; 2790 cc = CISS_FIND_COMMAND(cr); 2791 ce = (struct ciss_error_info *)&(cc->sg[0]); 2792 csio = (struct ccb_scsiio *)cr->cr_private; 2793 2794 /* 2795 * Extract status values from request. 2796 */ 2797 ciss_report_request(cr, &command_status, &scsi_status); 2798 csio->scsi_status = scsi_status; 2799 2800 /* 2801 * Handle specific SCSI status values. 2802 */ 2803 switch(scsi_status) { 2804 /* no status due to adapter error */ 2805 case -1: 2806 debug(0, "adapter error"); 2807 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2808 break; 2809 2810 /* no status due to command completed OK */ 2811 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 2812 debug(2, "SCSI_STATUS_OK"); 2813 csio->ccb_h.status = CAM_REQ_CMP; 2814 break; 2815 2816 /* check condition, sense data included */ 2817 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 2818 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 2819 ce->sense_length, ce->residual_count); 2820 bzero(&csio->sense_data, SSD_FULL_SIZE); 2821 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 2822 csio->sense_len = ce->sense_length; 2823 csio->resid = ce->residual_count; 2824 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 2825 #ifdef CISS_DEBUG 2826 { 2827 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 2828 debug(0, "sense key %x", sns->flags & SSD_KEY); 2829 } 2830 #endif 2831 break; 2832 2833 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 2834 debug(0, "SCSI_STATUS_BUSY"); 2835 csio->ccb_h.status = CAM_SCSI_BUSY; 2836 break; 2837 2838 default: 2839 debug(0, "unknown status 0x%x", csio->scsi_status); 2840 csio->ccb_h.status = CAM_REQ_CMP_ERR; 2841 break; 2842 } 2843 2844 /* handle post-command fixup */ 2845 ciss_cam_complete_fixup(sc, csio); 2846 2847 /* tell CAM we're ready for more commands */ 2848 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 2849 2850 xpt_done((union ccb *)csio); 2851 ciss_release_request(cr); 2852 } 2853 2854 /******************************************************************************** 2855 * Fix up the result of some commands here. 2856 */ 2857 static void 2858 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 2859 { 2860 struct scsi_inquiry_data *inq; 2861 struct ciss_ldrive *cl; 2862 int bus, target; 2863 2864 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 2865 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 2866 2867 inq = (struct scsi_inquiry_data *)csio->data_ptr; 2868 target = csio->ccb_h.target_id; 2869 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 2870 2871 /* 2872 * Don't let hard drives be seen by the DA driver. They will still be 2873 * attached by the PASS driver. 2874 */ 2875 if (CISS_IS_PHYSICAL(bus)) { 2876 if (SID_TYPE(inq) == T_DIRECT) 2877 inq->device = (inq->device & 0xe0) | T_NODEVICE; 2878 return; 2879 } 2880 2881 cl = &sc->ciss_logical[bus][target]; 2882 2883 padstr(inq->vendor, "COMPAQ", 8); 2884 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 2885 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 2886 } 2887 } 2888 2889 2890 /******************************************************************************** 2891 * Find a peripheral attached at (target) 2892 */ 2893 static struct cam_periph * 2894 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 2895 { 2896 struct cam_periph *periph; 2897 struct cam_path *path; 2898 int status; 2899 2900 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 2901 target, 0); 2902 if (status == CAM_REQ_CMP) { 2903 periph = cam_periph_find(path, NULL); 2904 xpt_free_path(path); 2905 } else { 2906 periph = NULL; 2907 } 2908 return(periph); 2909 } 2910 2911 /******************************************************************************** 2912 * Name the device at (target) 2913 * 2914 * XXX is this strictly correct? 2915 */ 2916 static int 2917 ciss_name_device(struct ciss_softc *sc, int bus, int target) 2918 { 2919 struct cam_periph *periph; 2920 2921 if (CISS_IS_PHYSICAL(bus)) 2922 return (0); 2923 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 2924 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 2925 periph->periph_name, periph->unit_number); 2926 return(0); 2927 } 2928 sc->ciss_logical[bus][target].cl_name[0] = 0; 2929 return(ENOENT); 2930 } 2931 2932 /************************************************************************ 2933 * Periodic status monitoring. 2934 */ 2935 static void 2936 ciss_periodic(void *arg) 2937 { 2938 struct ciss_softc *sc; 2939 2940 debug_called(1); 2941 2942 sc = (struct ciss_softc *)arg; 2943 2944 /* 2945 * Check the adapter heartbeat. 2946 */ 2947 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 2948 sc->ciss_heart_attack++; 2949 debug(0, "adapter heart attack in progress 0x%x/%d", 2950 sc->ciss_heartbeat, sc->ciss_heart_attack); 2951 if (sc->ciss_heart_attack == 3) { 2952 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 2953 /* XXX should reset adapter here */ 2954 } 2955 } else { 2956 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 2957 sc->ciss_heart_attack = 0; 2958 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 2959 } 2960 2961 /* 2962 * If the notify event request has died for some reason, or has 2963 * not started yet, restart it. 2964 */ 2965 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 2966 debug(0, "(re)starting Event Notify chain"); 2967 ciss_notify_event(sc); 2968 } 2969 2970 /* 2971 * Reschedule. 2972 */ 2973 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) 2974 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, 2975 ciss_periodic, sc); 2976 } 2977 2978 /************************************************************************ 2979 * Request a notification response from the adapter. 2980 * 2981 * If (cr) is NULL, this is the first request of the adapter, so 2982 * reset the adapter's message pointer and start with the oldest 2983 * message available. 2984 */ 2985 static void 2986 ciss_notify_event(struct ciss_softc *sc) 2987 { 2988 struct ciss_request *cr; 2989 struct ciss_command *cc; 2990 struct ciss_notify_cdb *cnc; 2991 int error; 2992 2993 debug_called(1); 2994 2995 cr = sc->ciss_periodic_notify; 2996 2997 /* get a request if we don't already have one */ 2998 if (cr == NULL) { 2999 if ((error = ciss_get_request(sc, &cr)) != 0) { 3000 debug(0, "can't get notify event request"); 3001 goto out; 3002 } 3003 sc->ciss_periodic_notify = cr; 3004 cr->cr_complete = ciss_notify_complete; 3005 debug(1, "acquired request %d", cr->cr_tag); 3006 } 3007 3008 /* 3009 * Get a databuffer if we don't already have one, note that the 3010 * adapter command wants a larger buffer than the actual 3011 * structure. 3012 */ 3013 if (cr->cr_data == NULL) { 3014 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3015 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3016 } 3017 3018 /* re-setup the request's command (since we never release it) XXX overkill*/ 3019 ciss_preen_command(cr); 3020 3021 /* (re)build the notify event command */ 3022 cc = CISS_FIND_COMMAND(cr); 3023 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3024 cc->header.address.physical.bus = 0; 3025 cc->header.address.physical.target = 0; 3026 3027 cc->cdb.cdb_length = sizeof(*cnc); 3028 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3029 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3030 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3031 cc->cdb.timeout = 0; /* no timeout, we hope */ 3032 3033 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3034 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3035 cnc->opcode = CISS_OPCODE_READ; 3036 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3037 cnc->timeout = 0; /* no timeout, we hope */ 3038 cnc->synchronous = 0; 3039 cnc->ordered = 0; 3040 cnc->seek_to_oldest = 0; 3041 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3042 cnc->new_only = 1; 3043 else 3044 cnc->new_only = 0; 3045 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3046 3047 /* submit the request */ 3048 error = ciss_start(cr); 3049 3050 out: 3051 if (error) { 3052 if (cr != NULL) { 3053 if (cr->cr_data != NULL) 3054 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3055 ciss_release_request(cr); 3056 } 3057 sc->ciss_periodic_notify = NULL; 3058 debug(0, "can't submit notify event request"); 3059 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3060 } else { 3061 debug(1, "notify event submitted"); 3062 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3063 } 3064 } 3065 3066 static void 3067 ciss_notify_complete(struct ciss_request *cr) 3068 { 3069 struct ciss_command *cc; 3070 struct ciss_notify *cn; 3071 struct ciss_softc *sc; 3072 int scsi_status; 3073 int command_status; 3074 debug_called(1); 3075 3076 cc = CISS_FIND_COMMAND(cr); 3077 cn = (struct ciss_notify *)cr->cr_data; 3078 sc = cr->cr_sc; 3079 3080 /* 3081 * Report request results, decode status. 3082 */ 3083 ciss_report_request(cr, &command_status, &scsi_status); 3084 3085 /* 3086 * Abort the chain on a fatal error. 3087 * 3088 * XXX which of these are actually errors? 3089 */ 3090 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3091 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3092 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3093 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3094 ciss_name_command_status(command_status)); 3095 ciss_release_request(cr); 3096 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3097 return; 3098 } 3099 3100 /* 3101 * If the adapter gave us a text message, print it. 3102 */ 3103 if (cn->message[0] != 0) 3104 ciss_printf(sc, "*** %.80s\n", cn->message); 3105 3106 debug(0, "notify event class %d subclass %d detail %d", 3107 cn->class, cn->subclass, cn->detail); 3108 3109 /* 3110 * If the response indicates that the notifier has been aborted, 3111 * release the notifier command. 3112 */ 3113 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3114 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3115 (cn->detail == 1)) { 3116 debug(0, "notifier exiting"); 3117 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3118 ciss_release_request(cr); 3119 sc->ciss_periodic_notify = NULL; 3120 wakeup(&sc->ciss_periodic_notify); 3121 } else { 3122 /* Handle notify events in a kernel thread */ 3123 ciss_enqueue_notify(cr); 3124 sc->ciss_periodic_notify = NULL; 3125 wakeup(&sc->ciss_periodic_notify); 3126 wakeup(&sc->ciss_notify); 3127 } 3128 /* 3129 * Send a new notify event command, if we're not aborting. 3130 */ 3131 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3132 ciss_notify_event(sc); 3133 } 3134 } 3135 3136 /************************************************************************ 3137 * Abort the Notify Event chain. 3138 * 3139 * Note that we can't just abort the command in progress; we have to 3140 * explicitly issue an Abort Notify Event command in order for the 3141 * adapter to clean up correctly. 3142 * 3143 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3144 * the chain will not restart itself. 3145 */ 3146 static int 3147 ciss_notify_abort(struct ciss_softc *sc) 3148 { 3149 struct ciss_request *cr; 3150 struct ciss_command *cc; 3151 struct ciss_notify_cdb *cnc; 3152 int error, command_status, scsi_status; 3153 3154 debug_called(1); 3155 3156 cr = NULL; 3157 error = 0; 3158 3159 /* verify that there's an outstanding command */ 3160 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3161 goto out; 3162 3163 /* get a command to issue the abort with */ 3164 if ((error = ciss_get_request(sc, &cr))) 3165 goto out; 3166 3167 /* get a buffer for the result */ 3168 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3169 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3170 3171 /* build the CDB */ 3172 cc = CISS_FIND_COMMAND(cr); 3173 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3174 cc->header.address.physical.bus = 0; 3175 cc->header.address.physical.target = 0; 3176 cc->cdb.cdb_length = sizeof(*cnc); 3177 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3178 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3179 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3180 cc->cdb.timeout = 0; /* no timeout, we hope */ 3181 3182 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3183 bzero(cnc, sizeof(*cnc)); 3184 cnc->opcode = CISS_OPCODE_WRITE; 3185 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3186 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3187 3188 ciss_print_request(cr); 3189 3190 /* 3191 * Submit the request and wait for it to complete. 3192 */ 3193 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3194 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3195 goto out; 3196 } 3197 3198 /* 3199 * Check response. 3200 */ 3201 ciss_report_request(cr, &command_status, &scsi_status); 3202 switch(command_status) { 3203 case CISS_CMD_STATUS_SUCCESS: 3204 break; 3205 case CISS_CMD_STATUS_INVALID_COMMAND: 3206 /* 3207 * Some older adapters don't support the CISS version of this 3208 * command. Fall back to using the BMIC version. 3209 */ 3210 error = ciss_notify_abort_bmic(sc); 3211 if (error != 0) 3212 goto out; 3213 break; 3214 3215 case CISS_CMD_STATUS_TARGET_STATUS: 3216 /* 3217 * This can happen if the adapter thinks there wasn't an outstanding 3218 * Notify Event command but we did. We clean up here. 3219 */ 3220 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3221 if (sc->ciss_periodic_notify != NULL) 3222 ciss_release_request(sc->ciss_periodic_notify); 3223 error = 0; 3224 goto out; 3225 } 3226 /* FALLTHROUGH */ 3227 3228 default: 3229 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3230 ciss_name_command_status(command_status)); 3231 error = EIO; 3232 goto out; 3233 } 3234 3235 /* 3236 * Sleep waiting for the notifier command to complete. Note 3237 * that if it doesn't, we may end up in a bad situation, since 3238 * the adapter may deliver it later. Also note that the adapter 3239 * requires the Notify Event command to be cancelled in order to 3240 * maintain internal bookkeeping. 3241 */ 3242 crit_enter(); 3243 while (sc->ciss_periodic_notify != NULL) { 3244 error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5); 3245 if (error == EWOULDBLOCK) { 3246 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3247 break; 3248 } 3249 } 3250 crit_exit(); 3251 3252 out: 3253 /* release the cancel request */ 3254 if (cr != NULL) { 3255 if (cr->cr_data != NULL) 3256 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3257 ciss_release_request(cr); 3258 } 3259 if (error == 0) 3260 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3261 return(error); 3262 } 3263 3264 /************************************************************************ 3265 * Abort the Notify Event chain using a BMIC command. 3266 */ 3267 static int 3268 ciss_notify_abort_bmic(struct ciss_softc *sc) 3269 { 3270 struct ciss_request *cr; 3271 int error, command_status; 3272 3273 debug_called(1); 3274 3275 cr = NULL; 3276 error = 0; 3277 3278 /* verify that there's an outstanding command */ 3279 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3280 goto out; 3281 3282 /* 3283 * Build a BMIC command to cancel the Notify on Event command. 3284 * 3285 * Note that we are sending a CISS opcode here. Odd. 3286 */ 3287 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3288 NULL, 0)) != 0) 3289 goto out; 3290 3291 /* 3292 * Submit the request and wait for it to complete. 3293 */ 3294 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3295 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3296 goto out; 3297 } 3298 3299 /* 3300 * Check response. 3301 */ 3302 ciss_report_request(cr, &command_status, NULL); 3303 switch(command_status) { 3304 case CISS_CMD_STATUS_SUCCESS: 3305 break; 3306 default: 3307 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3308 ciss_name_command_status(command_status)); 3309 error = EIO; 3310 goto out; 3311 } 3312 3313 out: 3314 if (cr != NULL) 3315 ciss_release_request(cr); 3316 return(error); 3317 } 3318 3319 /************************************************************************ 3320 * Handle rescanning all the logical volumes when a notify event 3321 * causes the drives to come online or offline. 3322 */ 3323 static void 3324 ciss_notify_rescan_logical(struct ciss_softc *sc) 3325 { 3326 struct ciss_lun_report *cll; 3327 struct ciss_ldrive *ld; 3328 int i, j, ndrives; 3329 3330 /* 3331 * We must rescan all logical volumes to get the right logical 3332 * drive address. 3333 */ 3334 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3335 CISS_MAX_LOGICAL); 3336 if (cll == NULL) 3337 return; 3338 3339 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3340 3341 /* 3342 * Delete any of the drives which were destroyed by the 3343 * firmware. 3344 */ 3345 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3346 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3347 ld = &sc->ciss_logical[i][j]; 3348 3349 if (ld->cl_update == 0) 3350 continue; 3351 3352 if (ld->cl_status != CISS_LD_ONLINE) { 3353 ciss_cam_rescan_target(sc, i, j); 3354 ld->cl_update = 0; 3355 if (ld->cl_ldrive) 3356 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3357 if (ld->cl_lstatus) 3358 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3359 3360 ld->cl_ldrive = NULL; 3361 ld->cl_lstatus = NULL; 3362 } 3363 } 3364 } 3365 3366 /* 3367 * Scan for new drives. 3368 */ 3369 for (i = 0; i < ndrives; i++) { 3370 int bus, target; 3371 3372 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3373 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3374 ld = &sc->ciss_logical[bus][target]; 3375 3376 if (ld->cl_update == 0) 3377 continue; 3378 3379 ld->cl_update = 0; 3380 ld->cl_address = cll->lun[i]; 3381 ld->cl_controller = &sc->ciss_controllers[bus]; 3382 if (ciss_identify_logical(sc, ld) == 0) { 3383 ciss_cam_rescan_target(sc, bus, target); 3384 } 3385 } 3386 kfree(cll, CISS_MALLOC_CLASS); 3387 } 3388 3389 /************************************************************************ 3390 * Handle a notify event relating to the status of a logical drive. 3391 * 3392 * XXX need to be able to defer some of these to properly handle 3393 * calling the "ID Physical drive" command, unless the 'extended' 3394 * drive IDs are always in BIG_MAP format. 3395 */ 3396 static void 3397 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3398 { 3399 struct ciss_ldrive *ld; 3400 int ostatus, bus, target; 3401 3402 debug_called(2); 3403 3404 bus = cn->device.physical.bus; 3405 target = cn->data.logical_status.logical_drive; 3406 ld = &sc->ciss_logical[bus][target]; 3407 3408 switch (cn->subclass) { 3409 case CISS_NOTIFY_LOGICAL_STATUS: 3410 switch (cn->detail) { 3411 case 0: 3412 ciss_name_device(sc, bus, target); 3413 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3414 cn->data.logical_status.logical_drive, ld->cl_name, 3415 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3416 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3417 cn->data.logical_status.spare_state, 3418 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3419 3420 /* 3421 * Update our idea of the drive's status. 3422 */ 3423 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3424 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3425 if (ld->cl_lstatus != NULL) 3426 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3427 3428 /* 3429 * Have CAM rescan the drive if its status has changed. 3430 */ 3431 if (ostatus != ld->cl_status) { 3432 ld->cl_update = 1; 3433 ciss_notify_rescan_logical(sc); 3434 } 3435 3436 break; 3437 3438 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3439 ciss_name_device(sc, bus, target); 3440 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3441 cn->data.logical_status.logical_drive, ld->cl_name); 3442 ciss_accept_media(sc, ld); 3443 3444 ld->cl_update = 1; 3445 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3446 ciss_notify_rescan_logical(sc); 3447 break; 3448 3449 case 2: 3450 case 3: 3451 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3452 cn->data.rebuild_aborted.logical_drive, 3453 ld->cl_name, 3454 (cn->detail == 2) ? "read" : "write"); 3455 break; 3456 } 3457 break; 3458 3459 case CISS_NOTIFY_LOGICAL_ERROR: 3460 if (cn->detail == 0) { 3461 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3462 cn->data.io_error.logical_drive, 3463 ld->cl_name, 3464 cn->data.io_error.failure_bus, 3465 cn->data.io_error.failure_drive); 3466 /* XXX should we take the drive down at this point, or will we be told? */ 3467 } 3468 break; 3469 3470 case CISS_NOTIFY_LOGICAL_SURFACE: 3471 if (cn->detail == 0) 3472 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3473 cn->data.consistency_completed.logical_drive, 3474 ld->cl_name); 3475 break; 3476 } 3477 } 3478 3479 /************************************************************************ 3480 * Handle a notify event relating to the status of a physical drive. 3481 */ 3482 static void 3483 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 3484 { 3485 } 3486 3487 /************************************************************************ 3488 * Handle a notify event relating to the status of a physical drive. 3489 */ 3490 static void 3491 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 3492 { 3493 struct ciss_lun_report *cll; 3494 int bus, target; 3495 3496 switch (cn->subclass) { 3497 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 3498 case CISS_NOTIFY_HOTPLUG_NONDISK: 3499 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 3500 target = 3501 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 3502 3503 crit_enter(); 3504 if (cn->detail == 0) { 3505 /* 3506 * Mark the device offline so that it'll start producing selection 3507 * timeouts to the upper layer. 3508 */ 3509 sc->ciss_physical[bus][target].cp_online = 0; 3510 } else { 3511 /* 3512 * Rescan the physical lun list for new items 3513 */ 3514 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 3515 CISS_MAX_PHYSICAL); 3516 if (cll == NULL) { 3517 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 3518 break; 3519 } 3520 ciss_filter_physical(sc, cll); 3521 } 3522 crit_exit(); 3523 break; 3524 3525 default: 3526 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 3527 return; 3528 } 3529 } 3530 3531 /************************************************************************ 3532 * Handle deferred processing of notify events. Notify events may need 3533 * sleep which is unsafe during an interrupt. 3534 */ 3535 static void 3536 ciss_notify_thread(void *arg) 3537 { 3538 struct ciss_softc *sc; 3539 struct ciss_request *cr; 3540 struct ciss_notify *cn; 3541 3542 sc = (struct ciss_softc *)arg; 3543 3544 crit_enter(); 3545 for (;;) { 3546 if (TAILQ_EMPTY(&sc->ciss_notify) != 0 && 3547 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 3548 tsleep(&sc->ciss_notify, 0, "idle", 0); 3549 } 3550 3551 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 3552 break; 3553 3554 cr = ciss_dequeue_notify(sc); 3555 crit_exit(); 3556 3557 if (cr == NULL) 3558 panic("cr null"); 3559 cn = (struct ciss_notify *)cr->cr_data; 3560 3561 switch (cn->class) { 3562 case CISS_NOTIFY_HOTPLUG: 3563 ciss_notify_hotplug(sc, cn); 3564 break; 3565 case CISS_NOTIFY_LOGICAL: 3566 ciss_notify_logical(sc, cn); 3567 break; 3568 case CISS_NOTIFY_PHYSICAL: 3569 ciss_notify_physical(sc, cn); 3570 break; 3571 } 3572 3573 ciss_release_request(cr); 3574 3575 crit_enter(); 3576 } 3577 sc->ciss_notify_thread = NULL; 3578 wakeup(&sc->ciss_notify_thread); 3579 crit_exit(); 3580 3581 kthread_exit(); 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((void(*)(void *))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