1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_setup_msix(struct ciss_softc *sc); 120 static int ciss_init_perf(struct ciss_softc *sc); 121 static int ciss_wait_adapter(struct ciss_softc *sc); 122 static int ciss_flush_adapter(struct ciss_softc *sc); 123 static int ciss_init_requests(struct ciss_softc *sc); 124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126 static int ciss_identify_adapter(struct ciss_softc *sc); 127 static int ciss_init_logical(struct ciss_softc *sc); 128 static int ciss_init_physical(struct ciss_softc *sc); 129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_update_config(struct ciss_softc *sc); 133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static void ciss_init_sysctl(struct ciss_softc *sc); 135 static void ciss_soft_reset(struct ciss_softc *sc); 136 static void ciss_free(struct ciss_softc *sc); 137 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138 static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140 /* request submission/completion */ 141 static int ciss_start(struct ciss_request *cr); 142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_intr(void *arg); 145 static void ciss_perf_intr(void *arg); 146 static void ciss_perf_msi_intr(void *arg); 147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149 static int ciss_synch_request(struct ciss_request *cr, int timeout); 150 static int ciss_poll_request(struct ciss_request *cr, int timeout); 151 static int ciss_wait_request(struct ciss_request *cr, int timeout); 152 #if 0 153 static int ciss_abort_request(struct ciss_request *cr); 154 #endif 155 156 /* request queueing */ 157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158 static void ciss_preen_command(struct ciss_request *cr); 159 static void ciss_release_request(struct ciss_request *cr); 160 161 /* request helpers */ 162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166 /* DMA map/unmap */ 167 static int ciss_map_request(struct ciss_request *cr); 168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170 static void ciss_unmap_request(struct ciss_request *cr); 171 172 /* CAM interface */ 173 static int ciss_cam_init(struct ciss_softc *sc); 174 static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176 static void ciss_cam_rescan_all(struct ciss_softc *sc); 177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static void ciss_cam_poll(struct cam_sim *sim); 182 static void ciss_cam_complete(struct ciss_request *cr); 183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188 /* periodic status monitoring */ 189 static void ciss_periodic(void *arg); 190 static void ciss_nop_complete(struct ciss_request *cr); 191 static void ciss_disable_adapter(struct ciss_softc *sc); 192 static void ciss_notify_event(struct ciss_softc *sc); 193 static void ciss_notify_complete(struct ciss_request *cr); 194 static int ciss_notify_abort(struct ciss_softc *sc); 195 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200 /* debugging output */ 201 static void ciss_print_request(struct ciss_request *cr); 202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203 static const char *ciss_name_ldrive_status(int status); 204 static int ciss_decode_ldrive_status(int status); 205 static const char *ciss_name_ldrive_org(int org); 206 static const char *ciss_name_command_status(int status); 207 208 /* 209 * PCI bus interface. 210 */ 211 static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 { 0, 0 } 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 228 MODULE_DEPEND(ciss, cam, 1, 1, 1); 229 MODULE_DEPEND(ciss, pci, 1, 1, 1); 230 231 /* 232 * Control device interface. 233 */ 234 static d_open_t ciss_open; 235 static d_close_t ciss_close; 236 static d_ioctl_t ciss_ioctl; 237 238 static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245 }; 246 247 /* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251 static unsigned int ciss_expose_hidden_physical = 0; 252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254 static unsigned int ciss_nop_message_heartbeat = 0; 255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257 /* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263 static int ciss_force_transport = 0; 264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266 /* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272 static int ciss_force_interrupt = 0; 273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275 /************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282 #define CISS_BOARD_UNKNWON 0 283 #define CISS_BOARD_SA5 1 284 #define CISS_BOARD_SA5B 2 285 #define CISS_BOARD_NOMSI (1<<4) 286 287 static struct 288 { 289 u_int16_t subvendor; 290 u_int16_t subdevice; 291 int flags; 292 char *desc; 293 } ciss_vendor_data[] = { 294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 295 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 296 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 297 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 298 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 299 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 300 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 301 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 302 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 303 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 305 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 311 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 312 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 317 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 318 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 320 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 326 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 327 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 328 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 329 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 330 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 331 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 332 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 333 { 0, 0, 0, NULL } 334 }; 335 336 /************************************************************************ 337 * Find a match for the device in our list of known adapters. 338 */ 339 static int 340 ciss_lookup(device_t dev) 341 { 342 int i; 343 344 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 345 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 346 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 347 return(i); 348 } 349 return(-1); 350 } 351 352 /************************************************************************ 353 * Match a known CISS adapter. 354 */ 355 static int 356 ciss_probe(device_t dev) 357 { 358 int i; 359 360 i = ciss_lookup(dev); 361 if (i != -1) { 362 device_set_desc(dev, ciss_vendor_data[i].desc); 363 return(BUS_PROBE_DEFAULT); 364 } 365 return(ENOENT); 366 } 367 368 /************************************************************************ 369 * Attach the driver to this adapter. 370 */ 371 static int 372 ciss_attach(device_t dev) 373 { 374 struct ciss_softc *sc; 375 int error; 376 377 debug_called(1); 378 379 #ifdef CISS_DEBUG 380 /* print structure/union sizes */ 381 debug_struct(ciss_command); 382 debug_struct(ciss_header); 383 debug_union(ciss_device_address); 384 debug_struct(ciss_cdb); 385 debug_struct(ciss_report_cdb); 386 debug_struct(ciss_notify_cdb); 387 debug_struct(ciss_notify); 388 debug_struct(ciss_message_cdb); 389 debug_struct(ciss_error_info_pointer); 390 debug_struct(ciss_error_info); 391 debug_struct(ciss_sg_entry); 392 debug_struct(ciss_config_table); 393 debug_struct(ciss_bmic_cdb); 394 debug_struct(ciss_bmic_id_ldrive); 395 debug_struct(ciss_bmic_id_lstatus); 396 debug_struct(ciss_bmic_id_table); 397 debug_struct(ciss_bmic_id_pdrive); 398 debug_struct(ciss_bmic_blink_pdrive); 399 debug_struct(ciss_bmic_flush_cache); 400 debug_const(CISS_MAX_REQUESTS); 401 debug_const(CISS_MAX_LOGICAL); 402 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 403 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 404 debug_const(CISS_COMMAND_ALLOC_SIZE); 405 debug_const(CISS_COMMAND_SG_LENGTH); 406 407 debug_type(cciss_pci_info_struct); 408 debug_type(cciss_coalint_struct); 409 debug_type(cciss_coalint_struct); 410 debug_type(NodeName_type); 411 debug_type(NodeName_type); 412 debug_type(Heartbeat_type); 413 debug_type(BusTypes_type); 414 debug_type(FirmwareVer_type); 415 debug_type(DriverVer_type); 416 debug_type(IOCTL_Command_struct); 417 #endif 418 419 sc = device_get_softc(dev); 420 sc->ciss_dev = dev; 421 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 422 423 /* 424 * Do PCI-specific init. 425 */ 426 if ((error = ciss_init_pci(sc)) != 0) 427 goto out; 428 429 /* 430 * Initialise driver queues. 431 */ 432 ciss_initq_free(sc); 433 ciss_initq_notify(sc); 434 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 435 436 /* 437 * Initalize device sysctls. 438 */ 439 ciss_init_sysctl(sc); 440 441 /* 442 * Initialise command/request pool. 443 */ 444 if ((error = ciss_init_requests(sc)) != 0) 445 goto out; 446 447 /* 448 * Get adapter information. 449 */ 450 if ((error = ciss_identify_adapter(sc)) != 0) 451 goto out; 452 453 /* 454 * Find all the physical devices. 455 */ 456 if ((error = ciss_init_physical(sc)) != 0) 457 goto out; 458 459 /* 460 * Build our private table of logical devices. 461 */ 462 if ((error = ciss_init_logical(sc)) != 0) 463 goto out; 464 465 /* 466 * Enable interrupts so that the CAM scan can complete. 467 */ 468 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 469 470 /* 471 * Initialise the CAM interface. 472 */ 473 if ((error = ciss_cam_init(sc)) != 0) 474 goto out; 475 476 /* 477 * Start the heartbeat routine and event chain. 478 */ 479 ciss_periodic(sc); 480 481 /* 482 * Create the control device. 483 */ 484 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 485 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 486 "ciss%d", device_get_unit(sc->ciss_dev)); 487 sc->ciss_dev_t->si_drv1 = sc; 488 489 /* 490 * The adapter is running; synchronous commands can now sleep 491 * waiting for an interrupt to signal completion. 492 */ 493 sc->ciss_flags |= CISS_FLAG_RUNNING; 494 495 ciss_spawn_notify_thread(sc); 496 497 error = 0; 498 out: 499 if (error != 0) { 500 /* ciss_free() expects the mutex to be held */ 501 mtx_lock(&sc->ciss_mtx); 502 ciss_free(sc); 503 } 504 return(error); 505 } 506 507 /************************************************************************ 508 * Detach the driver from this adapter. 509 */ 510 static int 511 ciss_detach(device_t dev) 512 { 513 struct ciss_softc *sc = device_get_softc(dev); 514 515 debug_called(1); 516 517 mtx_lock(&sc->ciss_mtx); 518 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 519 mtx_unlock(&sc->ciss_mtx); 520 return (EBUSY); 521 } 522 523 /* flush adapter cache */ 524 ciss_flush_adapter(sc); 525 526 /* release all resources. The mutex is released and freed here too. */ 527 ciss_free(sc); 528 529 return(0); 530 } 531 532 /************************************************************************ 533 * Prepare adapter for system shutdown. 534 */ 535 static int 536 ciss_shutdown(device_t dev) 537 { 538 struct ciss_softc *sc = device_get_softc(dev); 539 540 debug_called(1); 541 542 mtx_lock(&sc->ciss_mtx); 543 /* flush adapter cache */ 544 ciss_flush_adapter(sc); 545 546 if (sc->ciss_soft_reset) 547 ciss_soft_reset(sc); 548 mtx_unlock(&sc->ciss_mtx); 549 550 return(0); 551 } 552 553 static void 554 ciss_init_sysctl(struct ciss_softc *sc) 555 { 556 557 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 558 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 559 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 560 } 561 562 /************************************************************************ 563 * Perform PCI-specific attachment actions. 564 */ 565 static int 566 ciss_init_pci(struct ciss_softc *sc) 567 { 568 uintptr_t cbase, csize, cofs; 569 uint32_t method, supported_methods; 570 int error, sqmask, i; 571 void *intr; 572 573 debug_called(1); 574 575 /* 576 * Work out adapter type. 577 */ 578 i = ciss_lookup(sc->ciss_dev); 579 if (i < 0) { 580 ciss_printf(sc, "unknown adapter type\n"); 581 return (ENXIO); 582 } 583 584 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 585 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 586 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 587 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 588 } else { 589 /* 590 * XXX Big hammer, masks/unmasks all possible interrupts. This should 591 * work on all hardware variants. Need to add code to handle the 592 * "controller crashed" interupt bit that this unmasks. 593 */ 594 sqmask = ~0; 595 } 596 597 /* 598 * Allocate register window first (we need this to find the config 599 * struct). 600 */ 601 error = ENXIO; 602 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 603 if ((sc->ciss_regs_resource = 604 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 605 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 606 ciss_printf(sc, "can't allocate register window\n"); 607 return(ENXIO); 608 } 609 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 610 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 611 612 /* 613 * Find the BAR holding the config structure. If it's not the one 614 * we already mapped for registers, map it too. 615 */ 616 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 617 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 618 if ((sc->ciss_cfg_resource = 619 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 620 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 621 ciss_printf(sc, "can't allocate config window\n"); 622 return(ENXIO); 623 } 624 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 625 csize = rman_get_end(sc->ciss_cfg_resource) - 626 rman_get_start(sc->ciss_cfg_resource) + 1; 627 } else { 628 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 629 csize = rman_get_end(sc->ciss_regs_resource) - 630 rman_get_start(sc->ciss_regs_resource) + 1; 631 } 632 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 633 634 /* 635 * Use the base/size/offset values we just calculated to 636 * sanity-check the config structure. If it's OK, point to it. 637 */ 638 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 639 ciss_printf(sc, "config table outside window\n"); 640 return(ENXIO); 641 } 642 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 643 debug(1, "config struct at %p", sc->ciss_cfg); 644 645 /* 646 * Calculate the number of request structures/commands we are 647 * going to provide for this adapter. 648 */ 649 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 650 651 /* 652 * Validate the config structure. If we supported other transport 653 * methods, we could select amongst them at this point in time. 654 */ 655 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 656 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 657 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 658 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 659 return(ENXIO); 660 } 661 662 /* 663 * Select the mode of operation, prefer Performant. 664 */ 665 if (!(sc->ciss_cfg->supported_methods & 666 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 667 ciss_printf(sc, "No supported transport layers: 0x%x\n", 668 sc->ciss_cfg->supported_methods); 669 } 670 671 switch (ciss_force_transport) { 672 case 1: 673 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 674 break; 675 case 2: 676 supported_methods = CISS_TRANSPORT_METHOD_PERF; 677 break; 678 default: 679 supported_methods = sc->ciss_cfg->supported_methods; 680 break; 681 } 682 683 setup: 684 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 685 method = CISS_TRANSPORT_METHOD_PERF; 686 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 687 sc->ciss_cfg->transport_offset); 688 if (ciss_init_perf(sc)) { 689 supported_methods &= ~method; 690 goto setup; 691 } 692 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 693 method = CISS_TRANSPORT_METHOD_SIMPLE; 694 } else { 695 ciss_printf(sc, "No supported transport methods: 0x%x\n", 696 sc->ciss_cfg->supported_methods); 697 return(ENXIO); 698 } 699 700 /* 701 * Tell it we're using the low 4GB of RAM. Set the default interrupt 702 * coalescing options. 703 */ 704 sc->ciss_cfg->requested_method = method; 705 sc->ciss_cfg->command_physlimit = 0; 706 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 707 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 708 709 #ifdef __i386__ 710 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 711 #endif 712 713 if (ciss_update_config(sc)) { 714 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 715 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 716 return(ENXIO); 717 } 718 if ((sc->ciss_cfg->active_method & method) == 0) { 719 supported_methods &= ~method; 720 if (supported_methods == 0) { 721 ciss_printf(sc, "adapter refuses to go into available transports " 722 "mode (0x%x, 0x%x)\n", supported_methods, 723 sc->ciss_cfg->active_method); 724 return(ENXIO); 725 } else 726 goto setup; 727 } 728 729 /* 730 * Wait for the adapter to come ready. 731 */ 732 if ((error = ciss_wait_adapter(sc)) != 0) 733 return(error); 734 735 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 736 * interrupts have a rid of 0, this will be overridden if MSIX is used. 737 */ 738 sc->ciss_irq_rid[0] = 0; 739 if (method == CISS_TRANSPORT_METHOD_PERF) { 740 ciss_printf(sc, "PERFORMANT Transport\n"); 741 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 742 intr = ciss_perf_msi_intr; 743 } else { 744 intr = ciss_perf_intr; 745 } 746 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 747 * Unfortunately, there is no good way to know if this is a SAS 748 * controller. Hopefully enabling this bit universally will work OK. 749 * It seems to work fine for SA6i controllers. 750 */ 751 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 752 753 } else { 754 ciss_printf(sc, "SIMPLE Transport\n"); 755 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 756 if (ciss_force_interrupt == 2) 757 /* If this fails, we automatically revert to INTx */ 758 ciss_setup_msix(sc); 759 sc->ciss_perf = NULL; 760 intr = ciss_intr; 761 sc->ciss_interrupt_mask = sqmask; 762 } 763 764 /* 765 * Turn off interrupts before we go routing anything. 766 */ 767 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 768 769 /* 770 * Allocate and set up our interrupt. 771 */ 772 if ((sc->ciss_irq_resource = 773 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 774 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 775 ciss_printf(sc, "can't allocate interrupt\n"); 776 return(ENXIO); 777 } 778 779 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 780 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 781 &sc->ciss_intr)) { 782 ciss_printf(sc, "can't set up interrupt\n"); 783 return(ENXIO); 784 } 785 786 /* 787 * Allocate the parent bus DMA tag appropriate for our PCI 788 * interface. 789 * 790 * Note that "simple" adapters can only address within a 32-bit 791 * span. 792 */ 793 if (bus_dma_tag_create(NULL, /* parent */ 794 1, 0, /* alignment, boundary */ 795 BUS_SPACE_MAXADDR, /* lowaddr */ 796 BUS_SPACE_MAXADDR, /* highaddr */ 797 NULL, NULL, /* filter, filterarg */ 798 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 799 CISS_MAX_SG_ELEMENTS, /* nsegments */ 800 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 801 0, /* flags */ 802 NULL, NULL, /* lockfunc, lockarg */ 803 &sc->ciss_parent_dmat)) { 804 ciss_printf(sc, "can't allocate parent DMA tag\n"); 805 return(ENOMEM); 806 } 807 808 /* 809 * Create DMA tag for mapping buffers into adapter-addressable 810 * space. 811 */ 812 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 813 1, 0, /* alignment, boundary */ 814 BUS_SPACE_MAXADDR, /* lowaddr */ 815 BUS_SPACE_MAXADDR, /* highaddr */ 816 NULL, NULL, /* filter, filterarg */ 817 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 818 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 819 BUS_DMA_ALLOCNOW, /* flags */ 820 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 821 &sc->ciss_buffer_dmat)) { 822 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 823 return(ENOMEM); 824 } 825 return(0); 826 } 827 828 /************************************************************************ 829 * Setup MSI/MSIX operation (Performant only) 830 * Four interrupts are available, but we only use 1 right now. If MSI-X 831 * isn't avaialble, try using MSI instead. 832 */ 833 static int 834 ciss_setup_msix(struct ciss_softc *sc) 835 { 836 int val, i; 837 838 /* Weed out devices that don't actually support MSI */ 839 i = ciss_lookup(sc->ciss_dev); 840 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 841 return (EINVAL); 842 843 /* 844 * Only need to use the minimum number of MSI vectors, as the driver 845 * doesn't support directed MSIX interrupts. 846 */ 847 val = pci_msix_count(sc->ciss_dev); 848 if (val < CISS_MSI_COUNT) { 849 val = pci_msi_count(sc->ciss_dev); 850 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 851 if (val < CISS_MSI_COUNT) 852 return (EINVAL); 853 } 854 val = MIN(val, CISS_MSI_COUNT); 855 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 856 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 857 return (EINVAL); 858 } 859 860 sc->ciss_msi = val; 861 if (bootverbose) 862 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 863 (val != 1) ? "s" : ""); 864 865 for (i = 0; i < val; i++) 866 sc->ciss_irq_rid[i] = i + 1; 867 868 return (0); 869 870 } 871 872 /************************************************************************ 873 * Setup the Performant structures. 874 */ 875 static int 876 ciss_init_perf(struct ciss_softc *sc) 877 { 878 struct ciss_perf_config *pc = sc->ciss_perf; 879 int reply_size; 880 881 /* 882 * Create the DMA tag for the reply queue. 883 */ 884 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 885 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 886 1, 0, /* alignment, boundary */ 887 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 888 BUS_SPACE_MAXADDR, /* highaddr */ 889 NULL, NULL, /* filter, filterarg */ 890 reply_size, 1, /* maxsize, nsegments */ 891 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 892 0, /* flags */ 893 NULL, NULL, /* lockfunc, lockarg */ 894 &sc->ciss_reply_dmat)) { 895 ciss_printf(sc, "can't allocate reply DMA tag\n"); 896 return(ENOMEM); 897 } 898 /* 899 * Allocate memory and make it available for DMA. 900 */ 901 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 902 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 903 ciss_printf(sc, "can't allocate reply memory\n"); 904 return(ENOMEM); 905 } 906 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 907 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 908 bzero(sc->ciss_reply, reply_size); 909 910 sc->ciss_cycle = 0x1; 911 sc->ciss_rqidx = 0; 912 913 /* 914 * Preload the fetch table with common command sizes. This allows the 915 * hardware to not waste bus cycles for typical i/o commands, but also not 916 * tax the driver to be too exact in choosing sizes. The table is optimized 917 * for page-aligned i/o's, but since most i/o comes from the various pagers, 918 * it's a reasonable assumption to make. 919 */ 920 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 921 pc->fetch_count[CISS_SG_FETCH_1] = 922 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 923 pc->fetch_count[CISS_SG_FETCH_2] = 924 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 925 pc->fetch_count[CISS_SG_FETCH_4] = 926 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 927 pc->fetch_count[CISS_SG_FETCH_8] = 928 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 929 pc->fetch_count[CISS_SG_FETCH_16] = 930 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 931 pc->fetch_count[CISS_SG_FETCH_32] = 932 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 933 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 934 935 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 936 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 937 pc->rq_bank_hi = 0; 938 pc->rq_bank_lo = 0; 939 pc->rq[0].rq_addr_hi = 0x0; 940 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 941 942 return(0); 943 } 944 945 /************************************************************************ 946 * Wait for the adapter to come ready. 947 */ 948 static int 949 ciss_wait_adapter(struct ciss_softc *sc) 950 { 951 int i; 952 953 debug_called(1); 954 955 /* 956 * Wait for the adapter to come ready. 957 */ 958 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 959 ciss_printf(sc, "waiting for adapter to come ready...\n"); 960 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 961 DELAY(1000000); /* one second */ 962 if (i > 30) { 963 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 964 return(EIO); 965 } 966 } 967 } 968 return(0); 969 } 970 971 /************************************************************************ 972 * Flush the adapter cache. 973 */ 974 static int 975 ciss_flush_adapter(struct ciss_softc *sc) 976 { 977 struct ciss_request *cr; 978 struct ciss_bmic_flush_cache *cbfc; 979 int error, command_status; 980 981 debug_called(1); 982 983 cr = NULL; 984 cbfc = NULL; 985 986 /* 987 * Build a BMIC request to flush the cache. We don't disable 988 * it, as we may be going to do more I/O (eg. we are emulating 989 * the Synchronise Cache command). 990 */ 991 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 992 error = ENOMEM; 993 goto out; 994 } 995 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 996 (void **)&cbfc, sizeof(*cbfc))) != 0) 997 goto out; 998 999 /* 1000 * Submit the request and wait for it to complete. 1001 */ 1002 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1003 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1004 goto out; 1005 } 1006 1007 /* 1008 * Check response. 1009 */ 1010 ciss_report_request(cr, &command_status, NULL); 1011 switch(command_status) { 1012 case CISS_CMD_STATUS_SUCCESS: 1013 break; 1014 default: 1015 ciss_printf(sc, "error flushing cache (%s)\n", 1016 ciss_name_command_status(command_status)); 1017 error = EIO; 1018 goto out; 1019 } 1020 1021 out: 1022 if (cbfc != NULL) 1023 free(cbfc, CISS_MALLOC_CLASS); 1024 if (cr != NULL) 1025 ciss_release_request(cr); 1026 return(error); 1027 } 1028 1029 static void 1030 ciss_soft_reset(struct ciss_softc *sc) 1031 { 1032 struct ciss_request *cr = NULL; 1033 struct ciss_command *cc; 1034 int i, error = 0; 1035 1036 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1037 /* only reset proxy controllers */ 1038 if (sc->ciss_controllers[i].physical.bus == 0) 1039 continue; 1040 1041 if ((error = ciss_get_request(sc, &cr)) != 0) 1042 break; 1043 1044 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1045 NULL, 0)) != 0) 1046 break; 1047 1048 cc = cr->cr_cc; 1049 cc->header.address = sc->ciss_controllers[i]; 1050 1051 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1052 break; 1053 1054 ciss_release_request(cr); 1055 } 1056 1057 if (error) 1058 ciss_printf(sc, "error resetting controller (%d)\n", error); 1059 1060 if (cr != NULL) 1061 ciss_release_request(cr); 1062 } 1063 1064 /************************************************************************ 1065 * Allocate memory for the adapter command structures, initialise 1066 * the request structures. 1067 * 1068 * Note that the entire set of commands are allocated in a single 1069 * contiguous slab. 1070 */ 1071 static int 1072 ciss_init_requests(struct ciss_softc *sc) 1073 { 1074 struct ciss_request *cr; 1075 int i; 1076 1077 debug_called(1); 1078 1079 if (bootverbose) 1080 ciss_printf(sc, "using %d of %d available commands\n", 1081 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1082 1083 /* 1084 * Create the DMA tag for commands. 1085 */ 1086 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1087 32, 0, /* alignment, boundary */ 1088 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1089 BUS_SPACE_MAXADDR, /* highaddr */ 1090 NULL, NULL, /* filter, filterarg */ 1091 CISS_COMMAND_ALLOC_SIZE * 1092 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1093 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1094 0, /* flags */ 1095 NULL, NULL, /* lockfunc, lockarg */ 1096 &sc->ciss_command_dmat)) { 1097 ciss_printf(sc, "can't allocate command DMA tag\n"); 1098 return(ENOMEM); 1099 } 1100 /* 1101 * Allocate memory and make it available for DMA. 1102 */ 1103 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1104 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1105 ciss_printf(sc, "can't allocate command memory\n"); 1106 return(ENOMEM); 1107 } 1108 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1109 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1110 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1111 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1112 1113 /* 1114 * Set up the request and command structures, push requests onto 1115 * the free queue. 1116 */ 1117 for (i = 1; i < sc->ciss_max_requests; i++) { 1118 cr = &sc->ciss_request[i]; 1119 cr->cr_sc = sc; 1120 cr->cr_tag = i; 1121 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1122 CISS_COMMAND_ALLOC_SIZE * i); 1123 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1124 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1125 ciss_enqueue_free(cr); 1126 } 1127 return(0); 1128 } 1129 1130 static void 1131 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1132 { 1133 uint32_t *addr; 1134 1135 addr = arg; 1136 *addr = segs[0].ds_addr; 1137 } 1138 1139 /************************************************************************ 1140 * Identify the adapter, print some information about it. 1141 */ 1142 static int 1143 ciss_identify_adapter(struct ciss_softc *sc) 1144 { 1145 struct ciss_request *cr; 1146 int error, command_status; 1147 1148 debug_called(1); 1149 1150 cr = NULL; 1151 1152 /* 1153 * Get a request, allocate storage for the adapter data. 1154 */ 1155 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1156 (void **)&sc->ciss_id, 1157 sizeof(*sc->ciss_id))) != 0) 1158 goto out; 1159 1160 /* 1161 * Submit the request and wait for it to complete. 1162 */ 1163 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1164 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1165 goto out; 1166 } 1167 1168 /* 1169 * Check response. 1170 */ 1171 ciss_report_request(cr, &command_status, NULL); 1172 switch(command_status) { 1173 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1174 break; 1175 case CISS_CMD_STATUS_DATA_UNDERRUN: 1176 case CISS_CMD_STATUS_DATA_OVERRUN: 1177 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1178 default: 1179 ciss_printf(sc, "error reading adapter information (%s)\n", 1180 ciss_name_command_status(command_status)); 1181 error = EIO; 1182 goto out; 1183 } 1184 1185 /* sanity-check reply */ 1186 if (!sc->ciss_id->big_map_supported) { 1187 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1188 error = ENXIO; 1189 goto out; 1190 } 1191 1192 #if 0 1193 /* XXX later revisions may not need this */ 1194 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1195 #endif 1196 1197 /* XXX only really required for old 5300 adapters? */ 1198 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1199 1200 /* print information */ 1201 if (bootverbose) { 1202 #if 0 /* XXX proxy volumes??? */ 1203 ciss_printf(sc, " %d logical drive%s configured\n", 1204 sc->ciss_id->configured_logical_drives, 1205 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1206 #endif 1207 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1208 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1209 1210 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1211 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1212 ciss_printf(sc, " supported I/O methods 0x%b\n", 1213 sc->ciss_cfg->supported_methods, 1214 "\20\1READY\2simple\3performant\4MEMQ\n"); 1215 ciss_printf(sc, " active I/O method 0x%b\n", 1216 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1217 ciss_printf(sc, " 4G page base 0x%08x\n", 1218 sc->ciss_cfg->command_physlimit); 1219 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1220 sc->ciss_cfg->interrupt_coalesce_delay); 1221 ciss_printf(sc, " interrupt coalesce count %d\n", 1222 sc->ciss_cfg->interrupt_coalesce_count); 1223 ciss_printf(sc, " max outstanding commands %d\n", 1224 sc->ciss_cfg->max_outstanding_commands); 1225 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1226 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1227 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1228 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1229 } 1230 1231 out: 1232 if (error) { 1233 if (sc->ciss_id != NULL) { 1234 free(sc->ciss_id, CISS_MALLOC_CLASS); 1235 sc->ciss_id = NULL; 1236 } 1237 } 1238 if (cr != NULL) 1239 ciss_release_request(cr); 1240 return(error); 1241 } 1242 1243 /************************************************************************ 1244 * Helper routine for generating a list of logical and physical luns. 1245 */ 1246 static struct ciss_lun_report * 1247 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1248 { 1249 struct ciss_request *cr; 1250 struct ciss_command *cc; 1251 struct ciss_report_cdb *crc; 1252 struct ciss_lun_report *cll; 1253 int command_status; 1254 int report_size; 1255 int error = 0; 1256 1257 debug_called(1); 1258 1259 cr = NULL; 1260 cll = NULL; 1261 1262 /* 1263 * Get a request, allocate storage for the address list. 1264 */ 1265 if ((error = ciss_get_request(sc, &cr)) != 0) 1266 goto out; 1267 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1268 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1269 ciss_printf(sc, "can't allocate memory for lun report\n"); 1270 error = ENOMEM; 1271 goto out; 1272 } 1273 1274 /* 1275 * Build the Report Logical/Physical LUNs command. 1276 */ 1277 cc = cr->cr_cc; 1278 cr->cr_data = cll; 1279 cr->cr_length = report_size; 1280 cr->cr_flags = CISS_REQ_DATAIN; 1281 1282 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1283 cc->header.address.physical.bus = 0; 1284 cc->header.address.physical.target = 0; 1285 cc->cdb.cdb_length = sizeof(*crc); 1286 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1287 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1288 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1289 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1290 1291 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1292 bzero(crc, sizeof(*crc)); 1293 crc->opcode = opcode; 1294 crc->length = htonl(report_size); /* big-endian field */ 1295 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1296 1297 /* 1298 * Submit the request and wait for it to complete. (timeout 1299 * here should be much greater than above) 1300 */ 1301 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1302 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1303 goto out; 1304 } 1305 1306 /* 1307 * Check response. Note that data over/underrun is OK. 1308 */ 1309 ciss_report_request(cr, &command_status, NULL); 1310 switch(command_status) { 1311 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1312 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1313 break; 1314 case CISS_CMD_STATUS_DATA_OVERRUN: 1315 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1316 CISS_MAX_LOGICAL); 1317 break; 1318 default: 1319 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1320 ciss_name_command_status(command_status)); 1321 error = EIO; 1322 goto out; 1323 } 1324 ciss_release_request(cr); 1325 cr = NULL; 1326 1327 out: 1328 if (cr != NULL) 1329 ciss_release_request(cr); 1330 if (error && cll != NULL) { 1331 free(cll, CISS_MALLOC_CLASS); 1332 cll = NULL; 1333 } 1334 return(cll); 1335 } 1336 1337 /************************************************************************ 1338 * Find logical drives on the adapter. 1339 */ 1340 static int 1341 ciss_init_logical(struct ciss_softc *sc) 1342 { 1343 struct ciss_lun_report *cll; 1344 int error = 0, i, j; 1345 int ndrives; 1346 1347 debug_called(1); 1348 1349 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1350 CISS_MAX_LOGICAL); 1351 if (cll == NULL) { 1352 error = ENXIO; 1353 goto out; 1354 } 1355 1356 /* sanity-check reply */ 1357 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1358 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1359 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1360 ndrives, CISS_MAX_LOGICAL); 1361 error = ENXIO; 1362 goto out; 1363 } 1364 1365 /* 1366 * Save logical drive information. 1367 */ 1368 if (bootverbose) { 1369 ciss_printf(sc, "%d logical drive%s\n", 1370 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1371 } 1372 1373 sc->ciss_logical = 1374 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1375 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1376 if (sc->ciss_logical == NULL) { 1377 error = ENXIO; 1378 goto out; 1379 } 1380 1381 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1382 sc->ciss_logical[i] = 1383 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1384 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1385 if (sc->ciss_logical[i] == NULL) { 1386 error = ENXIO; 1387 goto out; 1388 } 1389 1390 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1391 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1392 } 1393 1394 1395 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1396 if (i < ndrives) { 1397 struct ciss_ldrive *ld; 1398 int bus, target; 1399 1400 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1401 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1402 ld = &sc->ciss_logical[bus][target]; 1403 1404 ld->cl_address = cll->lun[i]; 1405 ld->cl_controller = &sc->ciss_controllers[bus]; 1406 if (ciss_identify_logical(sc, ld) != 0) 1407 continue; 1408 /* 1409 * If the drive has had media exchanged, we should bring it online. 1410 */ 1411 if (ld->cl_lstatus->media_exchanged) 1412 ciss_accept_media(sc, ld); 1413 1414 } 1415 } 1416 1417 out: 1418 if (cll != NULL) 1419 free(cll, CISS_MALLOC_CLASS); 1420 return(error); 1421 } 1422 1423 static int 1424 ciss_init_physical(struct ciss_softc *sc) 1425 { 1426 struct ciss_lun_report *cll; 1427 int error = 0, i; 1428 int nphys; 1429 int bus, target; 1430 1431 debug_called(1); 1432 1433 bus = 0; 1434 target = 0; 1435 1436 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1437 CISS_MAX_PHYSICAL); 1438 if (cll == NULL) { 1439 error = ENXIO; 1440 goto out; 1441 } 1442 1443 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1444 1445 if (bootverbose) { 1446 ciss_printf(sc, "%d physical device%s\n", 1447 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1448 } 1449 1450 /* 1451 * Figure out the bus mapping. 1452 * Logical buses include both the local logical bus for local arrays and 1453 * proxy buses for remote arrays. Physical buses are numbered by the 1454 * controller and represent physical buses that hold physical devices. 1455 * We shift these bus numbers so that everything fits into a single flat 1456 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1457 * numbers, and the physical bus numbers are shifted to be above that. 1458 * This results in the various driver arrays being indexed as follows: 1459 * 1460 * ciss_controllers[] - indexed by logical bus 1461 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1462 * being shifted by 32. 1463 * ciss_logical[][] - indexed by logical bus 1464 * ciss_physical[][] - indexed by physical bus 1465 * 1466 * XXX This is getting more and more hackish. CISS really doesn't play 1467 * well with a standard SCSI model; devices are addressed via magic 1468 * cookies, not via b/t/l addresses. Since there is no way to store 1469 * the cookie in the CAM device object, we have to keep these lookup 1470 * tables handy so that the devices can be found quickly at the cost 1471 * of wasting memory and having a convoluted lookup scheme. This 1472 * driver should probably be converted to block interface. 1473 */ 1474 /* 1475 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1476 * controller. A proxy controller is another physical controller 1477 * behind the primary PCI controller. We need to know about this 1478 * so that BMIC commands can be properly targeted. There can be 1479 * proxy controllers attached to a single PCI controller, so 1480 * find the highest numbered one so the array can be properly 1481 * sized. 1482 */ 1483 sc->ciss_max_logical_bus = 1; 1484 for (i = 0; i < nphys; i++) { 1485 if (cll->lun[i].physical.extra_address == 0) { 1486 bus = cll->lun[i].physical.bus; 1487 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1488 } else { 1489 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1490 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1491 } 1492 } 1493 1494 sc->ciss_controllers = 1495 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1496 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1497 1498 if (sc->ciss_controllers == NULL) { 1499 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1500 error = ENOMEM; 1501 goto out; 1502 } 1503 1504 /* setup a map of controller addresses */ 1505 for (i = 0; i < nphys; i++) { 1506 if (cll->lun[i].physical.extra_address == 0) { 1507 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1508 } 1509 } 1510 1511 sc->ciss_physical = 1512 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1513 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1514 if (sc->ciss_physical == NULL) { 1515 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1516 error = ENOMEM; 1517 goto out; 1518 } 1519 1520 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1521 sc->ciss_physical[i] = 1522 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1523 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1524 if (sc->ciss_physical[i] == NULL) { 1525 ciss_printf(sc, "Could not allocate memory for target map\n"); 1526 error = ENOMEM; 1527 goto out; 1528 } 1529 } 1530 1531 ciss_filter_physical(sc, cll); 1532 1533 out: 1534 if (cll != NULL) 1535 free(cll, CISS_MALLOC_CLASS); 1536 1537 return(error); 1538 } 1539 1540 static int 1541 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1542 { 1543 u_int32_t ea; 1544 int i, nphys; 1545 int bus, target; 1546 1547 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1548 for (i = 0; i < nphys; i++) { 1549 if (cll->lun[i].physical.extra_address == 0) 1550 continue; 1551 1552 /* 1553 * Filter out devices that we don't want. Level 3 LUNs could 1554 * probably be supported, but the docs don't give enough of a 1555 * hint to know how. 1556 * 1557 * The mode field of the physical address is likely set to have 1558 * hard disks masked out. Honor it unless the user has overridden 1559 * us with the tunable. We also munge the inquiry data for these 1560 * disks so that they only show up as passthrough devices. Keeping 1561 * them visible in this fashion is useful for doing things like 1562 * flashing firmware. 1563 */ 1564 ea = cll->lun[i].physical.extra_address; 1565 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1566 (CISS_EXTRA_MODE2(ea) == 0x3)) 1567 continue; 1568 if ((ciss_expose_hidden_physical == 0) && 1569 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1570 continue; 1571 1572 /* 1573 * Note: CISS firmware numbers physical busses starting at '1', not 1574 * '0'. This numbering is internal to the firmware and is only 1575 * used as a hint here. 1576 */ 1577 bus = CISS_EXTRA_BUS2(ea) - 1; 1578 target = CISS_EXTRA_TARGET2(ea); 1579 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1580 sc->ciss_physical[bus][target].cp_online = 1; 1581 } 1582 1583 return (0); 1584 } 1585 1586 static int 1587 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1588 { 1589 struct ciss_request *cr; 1590 struct ciss_command *cc; 1591 struct scsi_inquiry *inq; 1592 int error; 1593 int command_status; 1594 1595 cr = NULL; 1596 1597 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1598 1599 if ((error = ciss_get_request(sc, &cr)) != 0) 1600 goto out; 1601 1602 cc = cr->cr_cc; 1603 cr->cr_data = &ld->cl_geometry; 1604 cr->cr_length = sizeof(ld->cl_geometry); 1605 cr->cr_flags = CISS_REQ_DATAIN; 1606 1607 cc->header.address = ld->cl_address; 1608 cc->cdb.cdb_length = 6; 1609 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1610 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1611 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1612 cc->cdb.timeout = 30; 1613 1614 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1615 inq->opcode = INQUIRY; 1616 inq->byte2 = SI_EVPD; 1617 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1618 inq->length = sizeof(ld->cl_geometry); 1619 1620 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1621 ciss_printf(sc, "error getting geometry (%d)\n", error); 1622 goto out; 1623 } 1624 1625 ciss_report_request(cr, &command_status, NULL); 1626 switch(command_status) { 1627 case CISS_CMD_STATUS_SUCCESS: 1628 case CISS_CMD_STATUS_DATA_UNDERRUN: 1629 break; 1630 case CISS_CMD_STATUS_DATA_OVERRUN: 1631 ciss_printf(sc, "WARNING: Data overrun\n"); 1632 break; 1633 default: 1634 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1635 ciss_name_command_status(command_status)); 1636 break; 1637 } 1638 1639 out: 1640 if (cr != NULL) 1641 ciss_release_request(cr); 1642 return(error); 1643 } 1644 /************************************************************************ 1645 * Identify a logical drive, initialise state related to it. 1646 */ 1647 static int 1648 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1649 { 1650 struct ciss_request *cr; 1651 struct ciss_command *cc; 1652 struct ciss_bmic_cdb *cbc; 1653 int error, command_status; 1654 1655 debug_called(1); 1656 1657 cr = NULL; 1658 1659 /* 1660 * Build a BMIC request to fetch the drive ID. 1661 */ 1662 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1663 (void **)&ld->cl_ldrive, 1664 sizeof(*ld->cl_ldrive))) != 0) 1665 goto out; 1666 cc = cr->cr_cc; 1667 cc->header.address = *ld->cl_controller; /* target controller */ 1668 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1669 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1670 1671 /* 1672 * Submit the request and wait for it to complete. 1673 */ 1674 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1675 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1676 goto out; 1677 } 1678 1679 /* 1680 * Check response. 1681 */ 1682 ciss_report_request(cr, &command_status, NULL); 1683 switch(command_status) { 1684 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1685 break; 1686 case CISS_CMD_STATUS_DATA_UNDERRUN: 1687 case CISS_CMD_STATUS_DATA_OVERRUN: 1688 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1689 default: 1690 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1691 ciss_name_command_status(command_status)); 1692 error = EIO; 1693 goto out; 1694 } 1695 ciss_release_request(cr); 1696 cr = NULL; 1697 1698 /* 1699 * Build a CISS BMIC command to get the logical drive status. 1700 */ 1701 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1702 goto out; 1703 1704 /* 1705 * Get the logical drive geometry. 1706 */ 1707 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1708 goto out; 1709 1710 /* 1711 * Print the drive's basic characteristics. 1712 */ 1713 if (bootverbose) { 1714 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1715 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1716 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1717 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1718 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1719 ld->cl_ldrive->block_size)); 1720 1721 ciss_print_ldrive(sc, ld); 1722 } 1723 out: 1724 if (error != 0) { 1725 /* make the drive not-exist */ 1726 ld->cl_status = CISS_LD_NONEXISTENT; 1727 if (ld->cl_ldrive != NULL) { 1728 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1729 ld->cl_ldrive = NULL; 1730 } 1731 if (ld->cl_lstatus != NULL) { 1732 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1733 ld->cl_lstatus = NULL; 1734 } 1735 } 1736 if (cr != NULL) 1737 ciss_release_request(cr); 1738 1739 return(error); 1740 } 1741 1742 /************************************************************************ 1743 * Get status for a logical drive. 1744 * 1745 * XXX should we also do this in response to Test Unit Ready? 1746 */ 1747 static int 1748 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1749 { 1750 struct ciss_request *cr; 1751 struct ciss_command *cc; 1752 struct ciss_bmic_cdb *cbc; 1753 int error, command_status; 1754 1755 /* 1756 * Build a CISS BMIC command to get the logical drive status. 1757 */ 1758 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1759 (void **)&ld->cl_lstatus, 1760 sizeof(*ld->cl_lstatus))) != 0) 1761 goto out; 1762 cc = cr->cr_cc; 1763 cc->header.address = *ld->cl_controller; /* target controller */ 1764 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1765 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1766 1767 /* 1768 * Submit the request and wait for it to complete. 1769 */ 1770 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1771 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1772 goto out; 1773 } 1774 1775 /* 1776 * Check response. 1777 */ 1778 ciss_report_request(cr, &command_status, NULL); 1779 switch(command_status) { 1780 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1781 break; 1782 case CISS_CMD_STATUS_DATA_UNDERRUN: 1783 case CISS_CMD_STATUS_DATA_OVERRUN: 1784 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1785 default: 1786 ciss_printf(sc, "error reading logical drive status (%s)\n", 1787 ciss_name_command_status(command_status)); 1788 error = EIO; 1789 goto out; 1790 } 1791 1792 /* 1793 * Set the drive's summary status based on the returned status. 1794 * 1795 * XXX testing shows that a failed JBOD drive comes back at next 1796 * boot in "queued for expansion" mode. WTF? 1797 */ 1798 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1799 1800 out: 1801 if (cr != NULL) 1802 ciss_release_request(cr); 1803 return(error); 1804 } 1805 1806 /************************************************************************ 1807 * Notify the adapter of a config update. 1808 */ 1809 static int 1810 ciss_update_config(struct ciss_softc *sc) 1811 { 1812 int i; 1813 1814 debug_called(1); 1815 1816 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1817 for (i = 0; i < 1000; i++) { 1818 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1819 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1820 return(0); 1821 } 1822 DELAY(1000); 1823 } 1824 return(1); 1825 } 1826 1827 /************************************************************************ 1828 * Accept new media into a logical drive. 1829 * 1830 * XXX The drive has previously been offline; it would be good if we 1831 * could make sure it's not open right now. 1832 */ 1833 static int 1834 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1835 { 1836 struct ciss_request *cr; 1837 struct ciss_command *cc; 1838 struct ciss_bmic_cdb *cbc; 1839 int command_status; 1840 int error = 0, ldrive; 1841 1842 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1843 1844 debug(0, "bringing logical drive %d back online"); 1845 1846 /* 1847 * Build a CISS BMIC command to bring the drive back online. 1848 */ 1849 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1850 NULL, 0)) != 0) 1851 goto out; 1852 cc = cr->cr_cc; 1853 cc->header.address = *ld->cl_controller; /* target controller */ 1854 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1855 cbc->log_drive = ldrive; 1856 1857 /* 1858 * Submit the request and wait for it to complete. 1859 */ 1860 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1861 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1862 goto out; 1863 } 1864 1865 /* 1866 * Check response. 1867 */ 1868 ciss_report_request(cr, &command_status, NULL); 1869 switch(command_status) { 1870 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1871 /* we should get a logical drive status changed event here */ 1872 break; 1873 default: 1874 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1875 ciss_name_command_status(command_status)); 1876 break; 1877 } 1878 1879 out: 1880 if (cr != NULL) 1881 ciss_release_request(cr); 1882 return(error); 1883 } 1884 1885 /************************************************************************ 1886 * Release adapter resources. 1887 */ 1888 static void 1889 ciss_free(struct ciss_softc *sc) 1890 { 1891 struct ciss_request *cr; 1892 int i, j; 1893 1894 debug_called(1); 1895 1896 /* we're going away */ 1897 sc->ciss_flags |= CISS_FLAG_ABORTING; 1898 1899 /* terminate the periodic heartbeat routine */ 1900 callout_stop(&sc->ciss_periodic); 1901 1902 /* cancel the Event Notify chain */ 1903 ciss_notify_abort(sc); 1904 1905 ciss_kill_notify_thread(sc); 1906 1907 /* disconnect from CAM */ 1908 if (sc->ciss_cam_sim) { 1909 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1910 if (sc->ciss_cam_sim[i]) { 1911 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1912 cam_sim_free(sc->ciss_cam_sim[i], 0); 1913 } 1914 } 1915 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1916 CISS_PHYSICAL_BASE; i++) { 1917 if (sc->ciss_cam_sim[i]) { 1918 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1919 cam_sim_free(sc->ciss_cam_sim[i], 0); 1920 } 1921 } 1922 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1923 } 1924 if (sc->ciss_cam_devq) 1925 cam_simq_free(sc->ciss_cam_devq); 1926 1927 /* remove the control device */ 1928 mtx_unlock(&sc->ciss_mtx); 1929 if (sc->ciss_dev_t != NULL) 1930 destroy_dev(sc->ciss_dev_t); 1931 1932 /* Final cleanup of the callout. */ 1933 callout_drain(&sc->ciss_periodic); 1934 mtx_destroy(&sc->ciss_mtx); 1935 1936 /* free the controller data */ 1937 if (sc->ciss_id != NULL) 1938 free(sc->ciss_id, CISS_MALLOC_CLASS); 1939 1940 /* release I/O resources */ 1941 if (sc->ciss_regs_resource != NULL) 1942 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1943 sc->ciss_regs_rid, sc->ciss_regs_resource); 1944 if (sc->ciss_cfg_resource != NULL) 1945 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1946 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1947 if (sc->ciss_intr != NULL) 1948 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1949 if (sc->ciss_irq_resource != NULL) 1950 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1951 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1952 if (sc->ciss_msi) 1953 pci_release_msi(sc->ciss_dev); 1954 1955 while ((cr = ciss_dequeue_free(sc)) != NULL) 1956 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1957 if (sc->ciss_buffer_dmat) 1958 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1959 1960 /* destroy command memory and DMA tag */ 1961 if (sc->ciss_command != NULL) { 1962 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1963 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1964 } 1965 if (sc->ciss_command_dmat) 1966 bus_dma_tag_destroy(sc->ciss_command_dmat); 1967 1968 if (sc->ciss_reply) { 1969 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1970 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1971 } 1972 if (sc->ciss_reply_dmat) 1973 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1974 1975 /* destroy DMA tags */ 1976 if (sc->ciss_parent_dmat) 1977 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1978 if (sc->ciss_logical) { 1979 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1980 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1981 if (sc->ciss_logical[i][j].cl_ldrive) 1982 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1983 if (sc->ciss_logical[i][j].cl_lstatus) 1984 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1985 } 1986 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1987 } 1988 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1989 } 1990 1991 if (sc->ciss_physical) { 1992 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1993 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1994 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1995 } 1996 1997 if (sc->ciss_controllers) 1998 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1999 2000 } 2001 2002 /************************************************************************ 2003 * Give a command to the adapter. 2004 * 2005 * Note that this uses the simple transport layer directly. If we 2006 * want to add support for other layers, we'll need a switch of some 2007 * sort. 2008 * 2009 * Note that the simple transport layer has no way of refusing a 2010 * command; we only have as many request structures as the adapter 2011 * supports commands, so we don't have to check (this presumes that 2012 * the adapter can handle commands as fast as we throw them at it). 2013 */ 2014 static int 2015 ciss_start(struct ciss_request *cr) 2016 { 2017 struct ciss_command *cc; /* XXX debugging only */ 2018 int error; 2019 2020 cc = cr->cr_cc; 2021 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2022 2023 /* 2024 * Map the request's data. 2025 */ 2026 if ((error = ciss_map_request(cr))) 2027 return(error); 2028 2029 #if 0 2030 ciss_print_request(cr); 2031 #endif 2032 2033 return(0); 2034 } 2035 2036 /************************************************************************ 2037 * Fetch completed request(s) from the adapter, queue them for 2038 * completion handling. 2039 * 2040 * Note that this uses the simple transport layer directly. If we 2041 * want to add support for other layers, we'll need a switch of some 2042 * sort. 2043 * 2044 * Note that the simple transport mechanism does not require any 2045 * reentrancy protection; the OPQ read is atomic. If there is a 2046 * chance of a race with something else that might move the request 2047 * off the busy list, then we will have to lock against that 2048 * (eg. timeouts, etc.) 2049 */ 2050 static void 2051 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2052 { 2053 struct ciss_request *cr; 2054 struct ciss_command *cc; 2055 u_int32_t tag, index; 2056 2057 debug_called(3); 2058 2059 /* 2060 * Loop quickly taking requests from the adapter and moving them 2061 * to the completed queue. 2062 */ 2063 for (;;) { 2064 2065 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2066 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2067 break; 2068 index = tag >> 2; 2069 debug(2, "completed command %d%s", index, 2070 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2071 if (index >= sc->ciss_max_requests) { 2072 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2073 continue; 2074 } 2075 cr = &(sc->ciss_request[index]); 2076 cc = cr->cr_cc; 2077 cc->header.host_tag = tag; /* not updated by adapter */ 2078 ciss_enqueue_complete(cr, qh); 2079 } 2080 2081 } 2082 2083 static void 2084 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2085 { 2086 struct ciss_request *cr; 2087 struct ciss_command *cc; 2088 u_int32_t tag, index; 2089 2090 debug_called(3); 2091 2092 /* 2093 * Loop quickly taking requests from the adapter and moving them 2094 * to the completed queue. 2095 */ 2096 for (;;) { 2097 tag = sc->ciss_reply[sc->ciss_rqidx]; 2098 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2099 break; 2100 index = tag >> 2; 2101 debug(2, "completed command %d%s\n", index, 2102 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2103 if (index < sc->ciss_max_requests) { 2104 cr = &(sc->ciss_request[index]); 2105 cc = cr->cr_cc; 2106 cc->header.host_tag = tag; /* not updated by adapter */ 2107 ciss_enqueue_complete(cr, qh); 2108 } else { 2109 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2110 } 2111 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2112 sc->ciss_rqidx = 0; 2113 sc->ciss_cycle ^= 1; 2114 } 2115 } 2116 2117 } 2118 2119 /************************************************************************ 2120 * Take an interrupt from the adapter. 2121 */ 2122 static void 2123 ciss_intr(void *arg) 2124 { 2125 cr_qhead_t qh; 2126 struct ciss_softc *sc = (struct ciss_softc *)arg; 2127 2128 /* 2129 * The only interrupt we recognise indicates that there are 2130 * entries in the outbound post queue. 2131 */ 2132 STAILQ_INIT(&qh); 2133 ciss_done(sc, &qh); 2134 mtx_lock(&sc->ciss_mtx); 2135 ciss_complete(sc, &qh); 2136 mtx_unlock(&sc->ciss_mtx); 2137 } 2138 2139 static void 2140 ciss_perf_intr(void *arg) 2141 { 2142 struct ciss_softc *sc = (struct ciss_softc *)arg; 2143 2144 /* Clear the interrupt and flush the bridges. Docs say that the flush 2145 * needs to be done twice, which doesn't seem right. 2146 */ 2147 CISS_TL_PERF_CLEAR_INT(sc); 2148 CISS_TL_PERF_FLUSH_INT(sc); 2149 2150 ciss_perf_msi_intr(sc); 2151 } 2152 2153 static void 2154 ciss_perf_msi_intr(void *arg) 2155 { 2156 cr_qhead_t qh; 2157 struct ciss_softc *sc = (struct ciss_softc *)arg; 2158 2159 STAILQ_INIT(&qh); 2160 ciss_perf_done(sc, &qh); 2161 mtx_lock(&sc->ciss_mtx); 2162 ciss_complete(sc, &qh); 2163 mtx_unlock(&sc->ciss_mtx); 2164 } 2165 2166 2167 /************************************************************************ 2168 * Process completed requests. 2169 * 2170 * Requests can be completed in three fashions: 2171 * 2172 * - by invoking a callback function (cr_complete is non-null) 2173 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2174 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2175 */ 2176 static void 2177 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2178 { 2179 struct ciss_request *cr; 2180 2181 debug_called(2); 2182 2183 /* 2184 * Loop taking requests off the completed queue and performing 2185 * completion processing on them. 2186 */ 2187 for (;;) { 2188 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2189 break; 2190 ciss_unmap_request(cr); 2191 2192 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2193 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2194 cr->cr_flags &= ~CISS_REQ_BUSY; 2195 2196 /* 2197 * If the request has a callback, invoke it. 2198 */ 2199 if (cr->cr_complete != NULL) { 2200 cr->cr_complete(cr); 2201 continue; 2202 } 2203 2204 /* 2205 * If someone is sleeping on this request, wake them up. 2206 */ 2207 if (cr->cr_flags & CISS_REQ_SLEEP) { 2208 cr->cr_flags &= ~CISS_REQ_SLEEP; 2209 wakeup(cr); 2210 continue; 2211 } 2212 2213 /* 2214 * If someone is polling this request for completion, signal. 2215 */ 2216 if (cr->cr_flags & CISS_REQ_POLL) { 2217 cr->cr_flags &= ~CISS_REQ_POLL; 2218 continue; 2219 } 2220 2221 /* 2222 * Give up and throw the request back on the free queue. This 2223 * should never happen; resources will probably be lost. 2224 */ 2225 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2226 ciss_enqueue_free(cr); 2227 } 2228 } 2229 2230 /************************************************************************ 2231 * Report on the completion status of a request, and pass back SCSI 2232 * and command status values. 2233 */ 2234 static int 2235 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2236 { 2237 struct ciss_command *cc; 2238 struct ciss_error_info *ce; 2239 2240 debug_called(2); 2241 2242 cc = cr->cr_cc; 2243 ce = (struct ciss_error_info *)&(cc->sg[0]); 2244 2245 /* 2246 * We don't consider data under/overrun an error for the Report 2247 * Logical/Physical LUNs commands. 2248 */ 2249 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2250 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2251 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2252 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2253 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2254 (cc->cdb.cdb[0] == INQUIRY))) { 2255 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2256 debug(2, "ignoring irrelevant under/overrun error"); 2257 } 2258 2259 /* 2260 * Check the command's error bit, if clear, there's no status and 2261 * everything is OK. 2262 */ 2263 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2264 if (scsi_status != NULL) 2265 *scsi_status = SCSI_STATUS_OK; 2266 if (command_status != NULL) 2267 *command_status = CISS_CMD_STATUS_SUCCESS; 2268 return(0); 2269 } else { 2270 if (command_status != NULL) 2271 *command_status = ce->command_status; 2272 if (scsi_status != NULL) { 2273 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2274 *scsi_status = ce->scsi_status; 2275 } else { 2276 *scsi_status = -1; 2277 } 2278 } 2279 if (bootverbose) 2280 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2281 ce->command_status, ciss_name_command_status(ce->command_status), 2282 ce->scsi_status); 2283 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2284 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2285 ce->additional_error_info.invalid_command.offense_size, 2286 ce->additional_error_info.invalid_command.offense_offset, 2287 ce->additional_error_info.invalid_command.offense_value, 2288 func); 2289 } 2290 } 2291 #if 0 2292 ciss_print_request(cr); 2293 #endif 2294 return(1); 2295 } 2296 2297 /************************************************************************ 2298 * Issue a request and don't return until it's completed. 2299 * 2300 * Depending on adapter status, we may poll or sleep waiting for 2301 * completion. 2302 */ 2303 static int 2304 ciss_synch_request(struct ciss_request *cr, int timeout) 2305 { 2306 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2307 return(ciss_wait_request(cr, timeout)); 2308 } else { 2309 return(ciss_poll_request(cr, timeout)); 2310 } 2311 } 2312 2313 /************************************************************************ 2314 * Issue a request and poll for completion. 2315 * 2316 * Timeout in milliseconds. 2317 */ 2318 static int 2319 ciss_poll_request(struct ciss_request *cr, int timeout) 2320 { 2321 cr_qhead_t qh; 2322 struct ciss_softc *sc; 2323 int error; 2324 2325 debug_called(2); 2326 2327 STAILQ_INIT(&qh); 2328 sc = cr->cr_sc; 2329 cr->cr_flags |= CISS_REQ_POLL; 2330 if ((error = ciss_start(cr)) != 0) 2331 return(error); 2332 2333 do { 2334 if (sc->ciss_perf) 2335 ciss_perf_done(sc, &qh); 2336 else 2337 ciss_done(sc, &qh); 2338 ciss_complete(sc, &qh); 2339 if (!(cr->cr_flags & CISS_REQ_POLL)) 2340 return(0); 2341 DELAY(1000); 2342 } while (timeout-- >= 0); 2343 return(EWOULDBLOCK); 2344 } 2345 2346 /************************************************************************ 2347 * Issue a request and sleep waiting for completion. 2348 * 2349 * Timeout in milliseconds. Note that a spurious wakeup will reset 2350 * the timeout. 2351 */ 2352 static int 2353 ciss_wait_request(struct ciss_request *cr, int timeout) 2354 { 2355 int error; 2356 2357 debug_called(2); 2358 2359 cr->cr_flags |= CISS_REQ_SLEEP; 2360 if ((error = ciss_start(cr)) != 0) 2361 return(error); 2362 2363 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2364 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2365 } 2366 return(error); 2367 } 2368 2369 #if 0 2370 /************************************************************************ 2371 * Abort a request. Note that a potential exists here to race the 2372 * request being completed; the caller must deal with this. 2373 */ 2374 static int 2375 ciss_abort_request(struct ciss_request *ar) 2376 { 2377 struct ciss_request *cr; 2378 struct ciss_command *cc; 2379 struct ciss_message_cdb *cmc; 2380 int error; 2381 2382 debug_called(1); 2383 2384 /* get a request */ 2385 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2386 return(error); 2387 2388 /* build the abort command */ 2389 cc = cr->cr_cc; 2390 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2391 cc->header.address.physical.target = 0; 2392 cc->header.address.physical.bus = 0; 2393 cc->cdb.cdb_length = sizeof(*cmc); 2394 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2395 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2396 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2397 cc->cdb.timeout = 30; 2398 2399 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2400 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2401 cmc->type = CISS_MESSAGE_ABORT_TASK; 2402 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2403 2404 /* 2405 * Send the request and wait for a response. If we believe we 2406 * aborted the request OK, clear the flag that indicates it's 2407 * running. 2408 */ 2409 error = ciss_synch_request(cr, 35 * 1000); 2410 if (!error) 2411 error = ciss_report_request(cr, NULL, NULL); 2412 ciss_release_request(cr); 2413 2414 return(error); 2415 } 2416 #endif 2417 2418 2419 /************************************************************************ 2420 * Fetch and initialise a request 2421 */ 2422 static int 2423 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2424 { 2425 struct ciss_request *cr; 2426 2427 debug_called(2); 2428 2429 /* 2430 * Get a request and clean it up. 2431 */ 2432 if ((cr = ciss_dequeue_free(sc)) == NULL) 2433 return(ENOMEM); 2434 2435 cr->cr_data = NULL; 2436 cr->cr_flags = 0; 2437 cr->cr_complete = NULL; 2438 cr->cr_private = NULL; 2439 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2440 2441 ciss_preen_command(cr); 2442 *crp = cr; 2443 return(0); 2444 } 2445 2446 static void 2447 ciss_preen_command(struct ciss_request *cr) 2448 { 2449 struct ciss_command *cc; 2450 u_int32_t cmdphys; 2451 2452 /* 2453 * Clean up the command structure. 2454 * 2455 * Note that we set up the error_info structure here, since the 2456 * length can be overwritten by any command. 2457 */ 2458 cc = cr->cr_cc; 2459 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2460 cc->header.sg_total = 0; 2461 cc->header.host_tag = cr->cr_tag << 2; 2462 cc->header.host_tag_zeroes = 0; 2463 cmdphys = cr->cr_ccphys; 2464 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2465 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2466 } 2467 2468 /************************************************************************ 2469 * Release a request to the free list. 2470 */ 2471 static void 2472 ciss_release_request(struct ciss_request *cr) 2473 { 2474 struct ciss_softc *sc; 2475 2476 debug_called(2); 2477 2478 sc = cr->cr_sc; 2479 2480 /* release the request to the free queue */ 2481 ciss_requeue_free(cr); 2482 } 2483 2484 /************************************************************************ 2485 * Allocate a request that will be used to send a BMIC command. Do some 2486 * of the common setup here to avoid duplicating it everywhere else. 2487 */ 2488 static int 2489 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2490 int opcode, void **bufp, size_t bufsize) 2491 { 2492 struct ciss_request *cr; 2493 struct ciss_command *cc; 2494 struct ciss_bmic_cdb *cbc; 2495 void *buf; 2496 int error; 2497 int dataout; 2498 2499 debug_called(2); 2500 2501 cr = NULL; 2502 buf = NULL; 2503 2504 /* 2505 * Get a request. 2506 */ 2507 if ((error = ciss_get_request(sc, &cr)) != 0) 2508 goto out; 2509 2510 /* 2511 * Allocate data storage if requested, determine the data direction. 2512 */ 2513 dataout = 0; 2514 if ((bufsize > 0) && (bufp != NULL)) { 2515 if (*bufp == NULL) { 2516 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2517 error = ENOMEM; 2518 goto out; 2519 } 2520 } else { 2521 buf = *bufp; 2522 dataout = 1; /* we are given a buffer, so we are writing */ 2523 } 2524 } 2525 2526 /* 2527 * Build a CISS BMIC command to get the logical drive ID. 2528 */ 2529 cr->cr_data = buf; 2530 cr->cr_length = bufsize; 2531 if (!dataout) 2532 cr->cr_flags = CISS_REQ_DATAIN; 2533 2534 cc = cr->cr_cc; 2535 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2536 cc->header.address.physical.bus = 0; 2537 cc->header.address.physical.target = 0; 2538 cc->cdb.cdb_length = sizeof(*cbc); 2539 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2540 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2541 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2542 cc->cdb.timeout = 0; 2543 2544 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2545 bzero(cbc, sizeof(*cbc)); 2546 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2547 cbc->bmic_opcode = opcode; 2548 cbc->size = htons((u_int16_t)bufsize); 2549 2550 out: 2551 if (error) { 2552 if (cr != NULL) 2553 ciss_release_request(cr); 2554 } else { 2555 *crp = cr; 2556 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2557 *bufp = buf; 2558 } 2559 return(error); 2560 } 2561 2562 /************************************************************************ 2563 * Handle a command passed in from userspace. 2564 */ 2565 static int 2566 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2567 { 2568 struct ciss_request *cr; 2569 struct ciss_command *cc; 2570 struct ciss_error_info *ce; 2571 int error = 0; 2572 2573 debug_called(1); 2574 2575 cr = NULL; 2576 2577 /* 2578 * Get a request. 2579 */ 2580 while (ciss_get_request(sc, &cr) != 0) 2581 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2582 cc = cr->cr_cc; 2583 2584 /* 2585 * Allocate an in-kernel databuffer if required, copy in user data. 2586 */ 2587 mtx_unlock(&sc->ciss_mtx); 2588 cr->cr_length = ioc->buf_size; 2589 if (ioc->buf_size > 0) { 2590 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2591 error = ENOMEM; 2592 goto out_unlocked; 2593 } 2594 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2595 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2596 goto out_unlocked; 2597 } 2598 } 2599 2600 /* 2601 * Build the request based on the user command. 2602 */ 2603 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2604 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2605 2606 /* XXX anything else to populate here? */ 2607 mtx_lock(&sc->ciss_mtx); 2608 2609 /* 2610 * Run the command. 2611 */ 2612 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2613 debug(0, "request failed - %d", error); 2614 goto out; 2615 } 2616 2617 /* 2618 * Check to see if the command succeeded. 2619 */ 2620 ce = (struct ciss_error_info *)&(cc->sg[0]); 2621 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2622 bzero(ce, sizeof(*ce)); 2623 2624 /* 2625 * Copy the results back to the user. 2626 */ 2627 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2628 mtx_unlock(&sc->ciss_mtx); 2629 if ((ioc->buf_size > 0) && 2630 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2631 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2632 goto out_unlocked; 2633 } 2634 2635 /* done OK */ 2636 error = 0; 2637 2638 out_unlocked: 2639 mtx_lock(&sc->ciss_mtx); 2640 2641 out: 2642 if ((cr != NULL) && (cr->cr_data != NULL)) 2643 free(cr->cr_data, CISS_MALLOC_CLASS); 2644 if (cr != NULL) 2645 ciss_release_request(cr); 2646 return(error); 2647 } 2648 2649 /************************************************************************ 2650 * Map a request into bus-visible space, initialise the scatter/gather 2651 * list. 2652 */ 2653 static int 2654 ciss_map_request(struct ciss_request *cr) 2655 { 2656 struct ciss_softc *sc; 2657 int error = 0; 2658 2659 debug_called(2); 2660 2661 sc = cr->cr_sc; 2662 2663 /* check that mapping is necessary */ 2664 if (cr->cr_flags & CISS_REQ_MAPPED) 2665 return(0); 2666 2667 cr->cr_flags |= CISS_REQ_MAPPED; 2668 2669 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2670 BUS_DMASYNC_PREWRITE); 2671 2672 if (cr->cr_data != NULL) { 2673 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2674 cr->cr_data, cr->cr_length, 2675 ciss_request_map_helper, cr, 0); 2676 if (error != 0) 2677 return (error); 2678 } else { 2679 /* 2680 * Post the command to the adapter. 2681 */ 2682 cr->cr_sg_tag = CISS_SG_NONE; 2683 cr->cr_flags |= CISS_REQ_BUSY; 2684 if (sc->ciss_perf) 2685 CISS_TL_PERF_POST_CMD(sc, cr); 2686 else 2687 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2688 } 2689 2690 return(0); 2691 } 2692 2693 static void 2694 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2695 { 2696 struct ciss_command *cc; 2697 struct ciss_request *cr; 2698 struct ciss_softc *sc; 2699 int i; 2700 2701 debug_called(2); 2702 2703 cr = (struct ciss_request *)arg; 2704 sc = cr->cr_sc; 2705 cc = cr->cr_cc; 2706 2707 for (i = 0; i < nseg; i++) { 2708 cc->sg[i].address = segs[i].ds_addr; 2709 cc->sg[i].length = segs[i].ds_len; 2710 cc->sg[i].extension = 0; 2711 } 2712 /* we leave the s/g table entirely within the command */ 2713 cc->header.sg_in_list = nseg; 2714 cc->header.sg_total = nseg; 2715 2716 if (cr->cr_flags & CISS_REQ_DATAIN) 2717 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2718 if (cr->cr_flags & CISS_REQ_DATAOUT) 2719 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2720 2721 if (nseg == 0) 2722 cr->cr_sg_tag = CISS_SG_NONE; 2723 else if (nseg == 1) 2724 cr->cr_sg_tag = CISS_SG_1; 2725 else if (nseg == 2) 2726 cr->cr_sg_tag = CISS_SG_2; 2727 else if (nseg <= 4) 2728 cr->cr_sg_tag = CISS_SG_4; 2729 else if (nseg <= 8) 2730 cr->cr_sg_tag = CISS_SG_8; 2731 else if (nseg <= 16) 2732 cr->cr_sg_tag = CISS_SG_16; 2733 else if (nseg <= 32) 2734 cr->cr_sg_tag = CISS_SG_32; 2735 else 2736 cr->cr_sg_tag = CISS_SG_MAX; 2737 2738 /* 2739 * Post the command to the adapter. 2740 */ 2741 cr->cr_flags |= CISS_REQ_BUSY; 2742 if (sc->ciss_perf) 2743 CISS_TL_PERF_POST_CMD(sc, cr); 2744 else 2745 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2746 } 2747 2748 /************************************************************************ 2749 * Unmap a request from bus-visible space. 2750 */ 2751 static void 2752 ciss_unmap_request(struct ciss_request *cr) 2753 { 2754 struct ciss_softc *sc; 2755 2756 debug_called(2); 2757 2758 sc = cr->cr_sc; 2759 2760 /* check that unmapping is necessary */ 2761 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2762 return; 2763 2764 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2765 BUS_DMASYNC_POSTWRITE); 2766 2767 if (cr->cr_data == NULL) 2768 goto out; 2769 2770 if (cr->cr_flags & CISS_REQ_DATAIN) 2771 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2772 if (cr->cr_flags & CISS_REQ_DATAOUT) 2773 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2774 2775 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2776 out: 2777 cr->cr_flags &= ~CISS_REQ_MAPPED; 2778 } 2779 2780 /************************************************************************ 2781 * Attach the driver to CAM. 2782 * 2783 * We put all the logical drives on a single SCSI bus. 2784 */ 2785 static int 2786 ciss_cam_init(struct ciss_softc *sc) 2787 { 2788 int i, maxbus; 2789 2790 debug_called(1); 2791 2792 /* 2793 * Allocate a devq. We can reuse this for the masked physical 2794 * devices if we decide to export these as well. 2795 */ 2796 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2797 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2798 return(ENOMEM); 2799 } 2800 2801 /* 2802 * Create a SIM. 2803 * 2804 * This naturally wastes a bit of memory. The alternative is to allocate 2805 * and register each bus as it is found, and then track them on a linked 2806 * list. Unfortunately, the driver has a few places where it needs to 2807 * look up the SIM based solely on bus number, and it's unclear whether 2808 * a list traversal would work for these situations. 2809 */ 2810 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2811 CISS_PHYSICAL_BASE); 2812 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2813 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2814 if (sc->ciss_cam_sim == NULL) { 2815 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2816 return(ENOMEM); 2817 } 2818 2819 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2820 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2821 "ciss", sc, 2822 device_get_unit(sc->ciss_dev), 2823 &sc->ciss_mtx, 2824 2, 2825 sc->ciss_max_requests - 2, 2826 sc->ciss_cam_devq)) == NULL) { 2827 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2828 return(ENOMEM); 2829 } 2830 2831 /* 2832 * Register bus with this SIM. 2833 */ 2834 mtx_lock(&sc->ciss_mtx); 2835 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2836 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2837 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2838 mtx_unlock(&sc->ciss_mtx); 2839 return (ENXIO); 2840 } 2841 } 2842 mtx_unlock(&sc->ciss_mtx); 2843 } 2844 2845 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2846 CISS_PHYSICAL_BASE; i++) { 2847 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2848 "ciss", sc, 2849 device_get_unit(sc->ciss_dev), 2850 &sc->ciss_mtx, 1, 2851 sc->ciss_max_requests - 2, 2852 sc->ciss_cam_devq)) == NULL) { 2853 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2854 return (ENOMEM); 2855 } 2856 2857 mtx_lock(&sc->ciss_mtx); 2858 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2859 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2860 mtx_unlock(&sc->ciss_mtx); 2861 return (ENXIO); 2862 } 2863 mtx_unlock(&sc->ciss_mtx); 2864 } 2865 2866 /* 2867 * Initiate a rescan of the bus. 2868 */ 2869 mtx_lock(&sc->ciss_mtx); 2870 ciss_cam_rescan_all(sc); 2871 mtx_unlock(&sc->ciss_mtx); 2872 2873 return(0); 2874 } 2875 2876 /************************************************************************ 2877 * Initiate a rescan of the 'logical devices' SIM 2878 */ 2879 static void 2880 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2881 { 2882 struct cam_path *path; 2883 union ccb *ccb; 2884 2885 debug_called(1); 2886 2887 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2888 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2889 return; 2890 } 2891 2892 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2893 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2894 ciss_printf(sc, "rescan failed (can't create path)\n"); 2895 free(ccb, CISS_MALLOC_CLASS); 2896 return; 2897 } 2898 2899 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2900 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2901 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2902 ccb->crcn.flags = CAM_FLAG_NONE; 2903 xpt_action(ccb); 2904 2905 /* scan is now in progress */ 2906 } 2907 2908 static void 2909 ciss_cam_rescan_all(struct ciss_softc *sc) 2910 { 2911 int i; 2912 2913 /* Rescan the logical buses */ 2914 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2915 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2916 /* Rescan the physical buses */ 2917 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2918 CISS_PHYSICAL_BASE; i++) 2919 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2920 } 2921 2922 static void 2923 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2924 { 2925 xpt_free_path(ccb->ccb_h.path); 2926 free(ccb, CISS_MALLOC_CLASS); 2927 } 2928 2929 /************************************************************************ 2930 * Handle requests coming from CAM 2931 */ 2932 static void 2933 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2934 { 2935 struct ciss_softc *sc; 2936 struct ccb_scsiio *csio; 2937 int bus, target; 2938 int physical; 2939 2940 sc = cam_sim_softc(sim); 2941 bus = cam_sim_bus(sim); 2942 csio = (struct ccb_scsiio *)&ccb->csio; 2943 target = csio->ccb_h.target_id; 2944 physical = CISS_IS_PHYSICAL(bus); 2945 2946 switch (ccb->ccb_h.func_code) { 2947 2948 /* perform SCSI I/O */ 2949 case XPT_SCSI_IO: 2950 if (!ciss_cam_action_io(sim, csio)) 2951 return; 2952 break; 2953 2954 /* perform geometry calculations */ 2955 case XPT_CALC_GEOMETRY: 2956 { 2957 struct ccb_calc_geometry *ccg = &ccb->ccg; 2958 struct ciss_ldrive *ld; 2959 2960 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2961 2962 ld = NULL; 2963 if (!physical) 2964 ld = &sc->ciss_logical[bus][target]; 2965 2966 /* 2967 * Use the cached geometry settings unless the fault tolerance 2968 * is invalid. 2969 */ 2970 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2971 u_int32_t secs_per_cylinder; 2972 2973 ccg->heads = 255; 2974 ccg->secs_per_track = 32; 2975 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2976 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2977 } else { 2978 ccg->heads = ld->cl_geometry.heads; 2979 ccg->secs_per_track = ld->cl_geometry.sectors; 2980 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2981 } 2982 ccb->ccb_h.status = CAM_REQ_CMP; 2983 break; 2984 } 2985 2986 /* handle path attribute inquiry */ 2987 case XPT_PATH_INQ: 2988 { 2989 struct ccb_pathinq *cpi = &ccb->cpi; 2990 2991 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2992 2993 cpi->version_num = 1; 2994 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2995 cpi->target_sprt = 0; 2996 cpi->hba_misc = 0; 2997 cpi->max_target = CISS_MAX_LOGICAL; 2998 cpi->max_lun = 0; /* 'logical drive' channel only */ 2999 cpi->initiator_id = CISS_MAX_LOGICAL; 3000 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3001 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3002 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3003 cpi->unit_number = cam_sim_unit(sim); 3004 cpi->bus_id = cam_sim_bus(sim); 3005 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3006 cpi->transport = XPORT_SPI; 3007 cpi->transport_version = 2; 3008 cpi->protocol = PROTO_SCSI; 3009 cpi->protocol_version = SCSI_REV_2; 3010 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 3011 ccb->ccb_h.status = CAM_REQ_CMP; 3012 break; 3013 } 3014 3015 case XPT_GET_TRAN_SETTINGS: 3016 { 3017 struct ccb_trans_settings *cts = &ccb->cts; 3018 int bus, target; 3019 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3020 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3021 3022 bus = cam_sim_bus(sim); 3023 target = cts->ccb_h.target_id; 3024 3025 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3026 /* disconnect always OK */ 3027 cts->protocol = PROTO_SCSI; 3028 cts->protocol_version = SCSI_REV_2; 3029 cts->transport = XPORT_SPI; 3030 cts->transport_version = 2; 3031 3032 spi->valid = CTS_SPI_VALID_DISC; 3033 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3034 3035 scsi->valid = CTS_SCSI_VALID_TQ; 3036 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3037 3038 cts->ccb_h.status = CAM_REQ_CMP; 3039 break; 3040 } 3041 3042 default: /* we can't do this */ 3043 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3044 ccb->ccb_h.status = CAM_REQ_INVALID; 3045 break; 3046 } 3047 3048 xpt_done(ccb); 3049 } 3050 3051 /************************************************************************ 3052 * Handle a CAM SCSI I/O request. 3053 */ 3054 static int 3055 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3056 { 3057 struct ciss_softc *sc; 3058 int bus, target; 3059 struct ciss_request *cr; 3060 struct ciss_command *cc; 3061 int error; 3062 3063 sc = cam_sim_softc(sim); 3064 bus = cam_sim_bus(sim); 3065 target = csio->ccb_h.target_id; 3066 3067 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3068 3069 /* check that the CDB pointer is not to a physical address */ 3070 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3071 debug(3, " CDB pointer is to physical address"); 3072 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3073 } 3074 3075 /* if there is data transfer, it must be to/from a virtual address */ 3076 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3077 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3078 debug(3, " data pointer is to physical address"); 3079 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3080 } 3081 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3082 debug(3, " data has premature s/g setup"); 3083 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3084 } 3085 } 3086 3087 /* abandon aborted ccbs or those that have failed validation */ 3088 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3089 debug(3, "abandoning CCB due to abort/validation failure"); 3090 return(EINVAL); 3091 } 3092 3093 /* handle emulation of some SCSI commands ourself */ 3094 if (ciss_cam_emulate(sc, csio)) 3095 return(0); 3096 3097 /* 3098 * Get a request to manage this command. If we can't, return the 3099 * ccb, freeze the queue and flag so that we unfreeze it when a 3100 * request completes. 3101 */ 3102 if ((error = ciss_get_request(sc, &cr)) != 0) { 3103 xpt_freeze_simq(sim, 1); 3104 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3105 return(error); 3106 } 3107 3108 /* 3109 * Build the command. 3110 */ 3111 cc = cr->cr_cc; 3112 cr->cr_data = csio->data_ptr; 3113 cr->cr_length = csio->dxfer_len; 3114 cr->cr_complete = ciss_cam_complete; 3115 cr->cr_private = csio; 3116 3117 /* 3118 * Target the right logical volume. 3119 */ 3120 if (CISS_IS_PHYSICAL(bus)) 3121 cc->header.address = 3122 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3123 else 3124 cc->header.address = 3125 sc->ciss_logical[bus][target].cl_address; 3126 cc->cdb.cdb_length = csio->cdb_len; 3127 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3128 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3129 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3130 cr->cr_flags = CISS_REQ_DATAOUT; 3131 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3132 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3133 cr->cr_flags = CISS_REQ_DATAIN; 3134 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3135 } else { 3136 cr->cr_flags = 0; 3137 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3138 } 3139 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3140 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3141 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3142 } else { 3143 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3144 } 3145 3146 /* 3147 * Submit the request to the adapter. 3148 * 3149 * Note that this may fail if we're unable to map the request (and 3150 * if we ever learn a transport layer other than simple, may fail 3151 * if the adapter rejects the command). 3152 */ 3153 if ((error = ciss_start(cr)) != 0) { 3154 xpt_freeze_simq(sim, 1); 3155 if (error == EINPROGRESS) { 3156 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3157 error = 0; 3158 } else { 3159 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3160 ciss_release_request(cr); 3161 } 3162 return(error); 3163 } 3164 3165 return(0); 3166 } 3167 3168 /************************************************************************ 3169 * Emulate SCSI commands the adapter doesn't handle as we might like. 3170 */ 3171 static int 3172 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3173 { 3174 int bus, target; 3175 u_int8_t opcode; 3176 3177 target = csio->ccb_h.target_id; 3178 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3179 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3180 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3181 3182 if (CISS_IS_PHYSICAL(bus)) { 3183 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3184 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3185 xpt_done((union ccb *)csio); 3186 return(1); 3187 } else 3188 return(0); 3189 } 3190 3191 /* 3192 * Handle requests for volumes that don't exist or are not online. 3193 * A selection timeout is slightly better than an illegal request. 3194 * Other errors might be better. 3195 */ 3196 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3197 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3198 xpt_done((union ccb *)csio); 3199 return(1); 3200 } 3201 3202 /* if we have to fake Synchronise Cache */ 3203 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3204 /* 3205 * If this is a Synchronise Cache command, typically issued when 3206 * a device is closed, flush the adapter and complete now. 3207 */ 3208 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3209 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3210 ciss_flush_adapter(sc); 3211 csio->ccb_h.status = CAM_REQ_CMP; 3212 xpt_done((union ccb *)csio); 3213 return(1); 3214 } 3215 } 3216 3217 return(0); 3218 } 3219 3220 /************************************************************************ 3221 * Check for possibly-completed commands. 3222 */ 3223 static void 3224 ciss_cam_poll(struct cam_sim *sim) 3225 { 3226 cr_qhead_t qh; 3227 struct ciss_softc *sc = cam_sim_softc(sim); 3228 3229 debug_called(2); 3230 3231 STAILQ_INIT(&qh); 3232 if (sc->ciss_perf) 3233 ciss_perf_done(sc, &qh); 3234 else 3235 ciss_done(sc, &qh); 3236 ciss_complete(sc, &qh); 3237 } 3238 3239 /************************************************************************ 3240 * Handle completion of a command - pass results back through the CCB 3241 */ 3242 static void 3243 ciss_cam_complete(struct ciss_request *cr) 3244 { 3245 struct ciss_softc *sc; 3246 struct ciss_command *cc; 3247 struct ciss_error_info *ce; 3248 struct ccb_scsiio *csio; 3249 int scsi_status; 3250 int command_status; 3251 3252 debug_called(2); 3253 3254 sc = cr->cr_sc; 3255 cc = cr->cr_cc; 3256 ce = (struct ciss_error_info *)&(cc->sg[0]); 3257 csio = (struct ccb_scsiio *)cr->cr_private; 3258 3259 /* 3260 * Extract status values from request. 3261 */ 3262 ciss_report_request(cr, &command_status, &scsi_status); 3263 csio->scsi_status = scsi_status; 3264 3265 /* 3266 * Handle specific SCSI status values. 3267 */ 3268 switch(scsi_status) { 3269 /* no status due to adapter error */ 3270 case -1: 3271 debug(0, "adapter error"); 3272 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3273 break; 3274 3275 /* no status due to command completed OK */ 3276 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3277 debug(2, "SCSI_STATUS_OK"); 3278 csio->ccb_h.status = CAM_REQ_CMP; 3279 break; 3280 3281 /* check condition, sense data included */ 3282 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3283 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3284 ce->sense_length, ce->residual_count); 3285 bzero(&csio->sense_data, SSD_FULL_SIZE); 3286 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3287 csio->sense_len = ce->sense_length; 3288 csio->resid = ce->residual_count; 3289 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3290 #ifdef CISS_DEBUG 3291 { 3292 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3293 debug(0, "sense key %x", sns->flags & SSD_KEY); 3294 } 3295 #endif 3296 break; 3297 3298 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3299 debug(0, "SCSI_STATUS_BUSY"); 3300 csio->ccb_h.status = CAM_SCSI_BUSY; 3301 break; 3302 3303 default: 3304 debug(0, "unknown status 0x%x", csio->scsi_status); 3305 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3306 break; 3307 } 3308 3309 /* handle post-command fixup */ 3310 ciss_cam_complete_fixup(sc, csio); 3311 3312 /* tell CAM we're ready for more commands */ 3313 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3314 3315 ciss_release_request(cr); 3316 xpt_done((union ccb *)csio); 3317 } 3318 3319 /******************************************************************************** 3320 * Fix up the result of some commands here. 3321 */ 3322 static void 3323 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3324 { 3325 struct scsi_inquiry_data *inq; 3326 struct ciss_ldrive *cl; 3327 int bus, target; 3328 3329 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3330 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3331 3332 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3333 target = csio->ccb_h.target_id; 3334 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3335 3336 /* 3337 * Don't let hard drives be seen by the DA driver. They will still be 3338 * attached by the PASS driver. 3339 */ 3340 if (CISS_IS_PHYSICAL(bus)) { 3341 if (SID_TYPE(inq) == T_DIRECT) 3342 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3343 return; 3344 } 3345 3346 cl = &sc->ciss_logical[bus][target]; 3347 3348 padstr(inq->vendor, "COMPAQ", 8); 3349 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3350 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3351 } 3352 } 3353 3354 3355 /******************************************************************************** 3356 * Find a peripheral attached at (target) 3357 */ 3358 static struct cam_periph * 3359 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3360 { 3361 struct cam_periph *periph; 3362 struct cam_path *path; 3363 int status; 3364 3365 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3366 target, 0); 3367 if (status == CAM_REQ_CMP) { 3368 periph = cam_periph_find(path, NULL); 3369 xpt_free_path(path); 3370 } else { 3371 periph = NULL; 3372 } 3373 return(periph); 3374 } 3375 3376 /******************************************************************************** 3377 * Name the device at (target) 3378 * 3379 * XXX is this strictly correct? 3380 */ 3381 static int 3382 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3383 { 3384 struct cam_periph *periph; 3385 3386 if (CISS_IS_PHYSICAL(bus)) 3387 return (0); 3388 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3389 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3390 periph->periph_name, periph->unit_number); 3391 return(0); 3392 } 3393 sc->ciss_logical[bus][target].cl_name[0] = 0; 3394 return(ENOENT); 3395 } 3396 3397 /************************************************************************ 3398 * Periodic status monitoring. 3399 */ 3400 static void 3401 ciss_periodic(void *arg) 3402 { 3403 struct ciss_softc *sc; 3404 struct ciss_request *cr = NULL; 3405 struct ciss_command *cc = NULL; 3406 int error = 0; 3407 3408 debug_called(1); 3409 3410 sc = (struct ciss_softc *)arg; 3411 3412 /* 3413 * Check the adapter heartbeat. 3414 */ 3415 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3416 sc->ciss_heart_attack++; 3417 debug(0, "adapter heart attack in progress 0x%x/%d", 3418 sc->ciss_heartbeat, sc->ciss_heart_attack); 3419 if (sc->ciss_heart_attack == 3) { 3420 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3421 ciss_disable_adapter(sc); 3422 return; 3423 } 3424 } else { 3425 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3426 sc->ciss_heart_attack = 0; 3427 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3428 } 3429 3430 /* 3431 * Send the NOP message and wait for a response. 3432 */ 3433 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3434 cc = cr->cr_cc; 3435 cr->cr_complete = ciss_nop_complete; 3436 cc->cdb.cdb_length = 1; 3437 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3438 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3439 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3440 cc->cdb.timeout = 0; 3441 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3442 3443 if ((error = ciss_start(cr)) != 0) { 3444 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3445 } 3446 } 3447 3448 /* 3449 * If the notify event request has died for some reason, or has 3450 * not started yet, restart it. 3451 */ 3452 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3453 debug(0, "(re)starting Event Notify chain"); 3454 ciss_notify_event(sc); 3455 } 3456 3457 /* 3458 * Reschedule. 3459 */ 3460 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3461 } 3462 3463 static void 3464 ciss_nop_complete(struct ciss_request *cr) 3465 { 3466 struct ciss_softc *sc; 3467 static int first_time = 1; 3468 3469 sc = cr->cr_sc; 3470 if (ciss_report_request(cr, NULL, NULL) != 0) { 3471 if (first_time == 1) { 3472 first_time = 0; 3473 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3474 } 3475 } 3476 3477 ciss_release_request(cr); 3478 } 3479 3480 /************************************************************************ 3481 * Disable the adapter. 3482 * 3483 * The all requests in completed queue is failed with hardware error. 3484 * This will cause failover in a multipath configuration. 3485 */ 3486 static void 3487 ciss_disable_adapter(struct ciss_softc *sc) 3488 { 3489 cr_qhead_t qh; 3490 struct ciss_request *cr; 3491 struct ciss_command *cc; 3492 struct ciss_error_info *ce; 3493 int i; 3494 3495 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3496 pci_disable_busmaster(sc->ciss_dev); 3497 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3498 3499 for (i = 1; i < sc->ciss_max_requests; i++) { 3500 cr = &sc->ciss_request[i]; 3501 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3502 continue; 3503 3504 cc = cr->cr_cc; 3505 ce = (struct ciss_error_info *)&(cc->sg[0]); 3506 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3507 ciss_enqueue_complete(cr, &qh); 3508 } 3509 3510 for (;;) { 3511 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3512 break; 3513 3514 /* 3515 * If the request has a callback, invoke it. 3516 */ 3517 if (cr->cr_complete != NULL) { 3518 cr->cr_complete(cr); 3519 continue; 3520 } 3521 3522 /* 3523 * If someone is sleeping on this request, wake them up. 3524 */ 3525 if (cr->cr_flags & CISS_REQ_SLEEP) { 3526 cr->cr_flags &= ~CISS_REQ_SLEEP; 3527 wakeup(cr); 3528 continue; 3529 } 3530 } 3531 } 3532 3533 /************************************************************************ 3534 * Request a notification response from the adapter. 3535 * 3536 * If (cr) is NULL, this is the first request of the adapter, so 3537 * reset the adapter's message pointer and start with the oldest 3538 * message available. 3539 */ 3540 static void 3541 ciss_notify_event(struct ciss_softc *sc) 3542 { 3543 struct ciss_request *cr; 3544 struct ciss_command *cc; 3545 struct ciss_notify_cdb *cnc; 3546 int error; 3547 3548 debug_called(1); 3549 3550 cr = sc->ciss_periodic_notify; 3551 3552 /* get a request if we don't already have one */ 3553 if (cr == NULL) { 3554 if ((error = ciss_get_request(sc, &cr)) != 0) { 3555 debug(0, "can't get notify event request"); 3556 goto out; 3557 } 3558 sc->ciss_periodic_notify = cr; 3559 cr->cr_complete = ciss_notify_complete; 3560 debug(1, "acquired request %d", cr->cr_tag); 3561 } 3562 3563 /* 3564 * Get a databuffer if we don't already have one, note that the 3565 * adapter command wants a larger buffer than the actual 3566 * structure. 3567 */ 3568 if (cr->cr_data == NULL) { 3569 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3570 debug(0, "can't get notify event request buffer"); 3571 error = ENOMEM; 3572 goto out; 3573 } 3574 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3575 } 3576 3577 /* re-setup the request's command (since we never release it) XXX overkill*/ 3578 ciss_preen_command(cr); 3579 3580 /* (re)build the notify event command */ 3581 cc = cr->cr_cc; 3582 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3583 cc->header.address.physical.bus = 0; 3584 cc->header.address.physical.target = 0; 3585 3586 cc->cdb.cdb_length = sizeof(*cnc); 3587 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3588 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3589 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3590 cc->cdb.timeout = 0; /* no timeout, we hope */ 3591 3592 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3593 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3594 cnc->opcode = CISS_OPCODE_READ; 3595 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3596 cnc->timeout = 0; /* no timeout, we hope */ 3597 cnc->synchronous = 0; 3598 cnc->ordered = 0; 3599 cnc->seek_to_oldest = 0; 3600 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3601 cnc->new_only = 1; 3602 else 3603 cnc->new_only = 0; 3604 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3605 3606 /* submit the request */ 3607 error = ciss_start(cr); 3608 3609 out: 3610 if (error) { 3611 if (cr != NULL) { 3612 if (cr->cr_data != NULL) 3613 free(cr->cr_data, CISS_MALLOC_CLASS); 3614 ciss_release_request(cr); 3615 } 3616 sc->ciss_periodic_notify = NULL; 3617 debug(0, "can't submit notify event request"); 3618 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3619 } else { 3620 debug(1, "notify event submitted"); 3621 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3622 } 3623 } 3624 3625 static void 3626 ciss_notify_complete(struct ciss_request *cr) 3627 { 3628 struct ciss_command *cc; 3629 struct ciss_notify *cn; 3630 struct ciss_softc *sc; 3631 int scsi_status; 3632 int command_status; 3633 debug_called(1); 3634 3635 cc = cr->cr_cc; 3636 cn = (struct ciss_notify *)cr->cr_data; 3637 sc = cr->cr_sc; 3638 3639 /* 3640 * Report request results, decode status. 3641 */ 3642 ciss_report_request(cr, &command_status, &scsi_status); 3643 3644 /* 3645 * Abort the chain on a fatal error. 3646 * 3647 * XXX which of these are actually errors? 3648 */ 3649 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3650 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3651 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3652 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3653 ciss_name_command_status(command_status)); 3654 ciss_release_request(cr); 3655 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3656 return; 3657 } 3658 3659 /* 3660 * If the adapter gave us a text message, print it. 3661 */ 3662 if (cn->message[0] != 0) 3663 ciss_printf(sc, "*** %.80s\n", cn->message); 3664 3665 debug(0, "notify event class %d subclass %d detail %d", 3666 cn->class, cn->subclass, cn->detail); 3667 3668 /* 3669 * If the response indicates that the notifier has been aborted, 3670 * release the notifier command. 3671 */ 3672 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3673 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3674 (cn->detail == 1)) { 3675 debug(0, "notifier exiting"); 3676 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3677 ciss_release_request(cr); 3678 sc->ciss_periodic_notify = NULL; 3679 wakeup(&sc->ciss_periodic_notify); 3680 } else { 3681 /* Handle notify events in a kernel thread */ 3682 ciss_enqueue_notify(cr); 3683 sc->ciss_periodic_notify = NULL; 3684 wakeup(&sc->ciss_periodic_notify); 3685 wakeup(&sc->ciss_notify); 3686 } 3687 /* 3688 * Send a new notify event command, if we're not aborting. 3689 */ 3690 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3691 ciss_notify_event(sc); 3692 } 3693 } 3694 3695 /************************************************************************ 3696 * Abort the Notify Event chain. 3697 * 3698 * Note that we can't just abort the command in progress; we have to 3699 * explicitly issue an Abort Notify Event command in order for the 3700 * adapter to clean up correctly. 3701 * 3702 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3703 * the chain will not restart itself. 3704 */ 3705 static int 3706 ciss_notify_abort(struct ciss_softc *sc) 3707 { 3708 struct ciss_request *cr; 3709 struct ciss_command *cc; 3710 struct ciss_notify_cdb *cnc; 3711 int error, command_status, scsi_status; 3712 3713 debug_called(1); 3714 3715 cr = NULL; 3716 error = 0; 3717 3718 /* verify that there's an outstanding command */ 3719 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3720 goto out; 3721 3722 /* get a command to issue the abort with */ 3723 if ((error = ciss_get_request(sc, &cr))) 3724 goto out; 3725 3726 /* get a buffer for the result */ 3727 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3728 debug(0, "can't get notify event request buffer"); 3729 error = ENOMEM; 3730 goto out; 3731 } 3732 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3733 3734 /* build the CDB */ 3735 cc = cr->cr_cc; 3736 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3737 cc->header.address.physical.bus = 0; 3738 cc->header.address.physical.target = 0; 3739 cc->cdb.cdb_length = sizeof(*cnc); 3740 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3741 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3742 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3743 cc->cdb.timeout = 0; /* no timeout, we hope */ 3744 3745 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3746 bzero(cnc, sizeof(*cnc)); 3747 cnc->opcode = CISS_OPCODE_WRITE; 3748 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3749 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3750 3751 ciss_print_request(cr); 3752 3753 /* 3754 * Submit the request and wait for it to complete. 3755 */ 3756 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3757 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3758 goto out; 3759 } 3760 3761 /* 3762 * Check response. 3763 */ 3764 ciss_report_request(cr, &command_status, &scsi_status); 3765 switch(command_status) { 3766 case CISS_CMD_STATUS_SUCCESS: 3767 break; 3768 case CISS_CMD_STATUS_INVALID_COMMAND: 3769 /* 3770 * Some older adapters don't support the CISS version of this 3771 * command. Fall back to using the BMIC version. 3772 */ 3773 error = ciss_notify_abort_bmic(sc); 3774 if (error != 0) 3775 goto out; 3776 break; 3777 3778 case CISS_CMD_STATUS_TARGET_STATUS: 3779 /* 3780 * This can happen if the adapter thinks there wasn't an outstanding 3781 * Notify Event command but we did. We clean up here. 3782 */ 3783 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3784 if (sc->ciss_periodic_notify != NULL) 3785 ciss_release_request(sc->ciss_periodic_notify); 3786 error = 0; 3787 goto out; 3788 } 3789 /* FALLTHROUGH */ 3790 3791 default: 3792 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3793 ciss_name_command_status(command_status)); 3794 error = EIO; 3795 goto out; 3796 } 3797 3798 /* 3799 * Sleep waiting for the notifier command to complete. Note 3800 * that if it doesn't, we may end up in a bad situation, since 3801 * the adapter may deliver it later. Also note that the adapter 3802 * requires the Notify Event command to be cancelled in order to 3803 * maintain internal bookkeeping. 3804 */ 3805 while (sc->ciss_periodic_notify != NULL) { 3806 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3807 if (error == EWOULDBLOCK) { 3808 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3809 break; 3810 } 3811 } 3812 3813 out: 3814 /* release the cancel request */ 3815 if (cr != NULL) { 3816 if (cr->cr_data != NULL) 3817 free(cr->cr_data, CISS_MALLOC_CLASS); 3818 ciss_release_request(cr); 3819 } 3820 if (error == 0) 3821 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3822 return(error); 3823 } 3824 3825 /************************************************************************ 3826 * Abort the Notify Event chain using a BMIC command. 3827 */ 3828 static int 3829 ciss_notify_abort_bmic(struct ciss_softc *sc) 3830 { 3831 struct ciss_request *cr; 3832 int error, command_status; 3833 3834 debug_called(1); 3835 3836 cr = NULL; 3837 error = 0; 3838 3839 /* verify that there's an outstanding command */ 3840 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3841 goto out; 3842 3843 /* 3844 * Build a BMIC command to cancel the Notify on Event command. 3845 * 3846 * Note that we are sending a CISS opcode here. Odd. 3847 */ 3848 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3849 NULL, 0)) != 0) 3850 goto out; 3851 3852 /* 3853 * Submit the request and wait for it to complete. 3854 */ 3855 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3856 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3857 goto out; 3858 } 3859 3860 /* 3861 * Check response. 3862 */ 3863 ciss_report_request(cr, &command_status, NULL); 3864 switch(command_status) { 3865 case CISS_CMD_STATUS_SUCCESS: 3866 break; 3867 default: 3868 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3869 ciss_name_command_status(command_status)); 3870 error = EIO; 3871 goto out; 3872 } 3873 3874 out: 3875 if (cr != NULL) 3876 ciss_release_request(cr); 3877 return(error); 3878 } 3879 3880 /************************************************************************ 3881 * Handle rescanning all the logical volumes when a notify event 3882 * causes the drives to come online or offline. 3883 */ 3884 static void 3885 ciss_notify_rescan_logical(struct ciss_softc *sc) 3886 { 3887 struct ciss_lun_report *cll; 3888 struct ciss_ldrive *ld; 3889 int i, j, ndrives; 3890 3891 /* 3892 * We must rescan all logical volumes to get the right logical 3893 * drive address. 3894 */ 3895 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3896 CISS_MAX_LOGICAL); 3897 if (cll == NULL) 3898 return; 3899 3900 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3901 3902 /* 3903 * Delete any of the drives which were destroyed by the 3904 * firmware. 3905 */ 3906 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3907 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3908 ld = &sc->ciss_logical[i][j]; 3909 3910 if (ld->cl_update == 0) 3911 continue; 3912 3913 if (ld->cl_status != CISS_LD_ONLINE) { 3914 ciss_cam_rescan_target(sc, i, j); 3915 ld->cl_update = 0; 3916 if (ld->cl_ldrive) 3917 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3918 if (ld->cl_lstatus) 3919 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3920 3921 ld->cl_ldrive = NULL; 3922 ld->cl_lstatus = NULL; 3923 } 3924 } 3925 } 3926 3927 /* 3928 * Scan for new drives. 3929 */ 3930 for (i = 0; i < ndrives; i++) { 3931 int bus, target; 3932 3933 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3934 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3935 ld = &sc->ciss_logical[bus][target]; 3936 3937 if (ld->cl_update == 0) 3938 continue; 3939 3940 ld->cl_update = 0; 3941 ld->cl_address = cll->lun[i]; 3942 ld->cl_controller = &sc->ciss_controllers[bus]; 3943 if (ciss_identify_logical(sc, ld) == 0) { 3944 ciss_cam_rescan_target(sc, bus, target); 3945 } 3946 } 3947 free(cll, CISS_MALLOC_CLASS); 3948 } 3949 3950 /************************************************************************ 3951 * Handle a notify event relating to the status of a logical drive. 3952 * 3953 * XXX need to be able to defer some of these to properly handle 3954 * calling the "ID Physical drive" command, unless the 'extended' 3955 * drive IDs are always in BIG_MAP format. 3956 */ 3957 static void 3958 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3959 { 3960 struct ciss_ldrive *ld; 3961 int ostatus, bus, target; 3962 3963 debug_called(2); 3964 3965 bus = cn->device.physical.bus; 3966 target = cn->data.logical_status.logical_drive; 3967 ld = &sc->ciss_logical[bus][target]; 3968 3969 switch (cn->subclass) { 3970 case CISS_NOTIFY_LOGICAL_STATUS: 3971 switch (cn->detail) { 3972 case 0: 3973 ciss_name_device(sc, bus, target); 3974 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3975 cn->data.logical_status.logical_drive, ld->cl_name, 3976 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3977 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3978 cn->data.logical_status.spare_state, 3979 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3980 3981 /* 3982 * Update our idea of the drive's status. 3983 */ 3984 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3985 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3986 if (ld->cl_lstatus != NULL) 3987 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3988 3989 /* 3990 * Have CAM rescan the drive if its status has changed. 3991 */ 3992 if (ostatus != ld->cl_status) { 3993 ld->cl_update = 1; 3994 ciss_notify_rescan_logical(sc); 3995 } 3996 3997 break; 3998 3999 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4000 ciss_name_device(sc, bus, target); 4001 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4002 cn->data.logical_status.logical_drive, ld->cl_name); 4003 ciss_accept_media(sc, ld); 4004 4005 ld->cl_update = 1; 4006 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4007 ciss_notify_rescan_logical(sc); 4008 break; 4009 4010 case 2: 4011 case 3: 4012 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4013 cn->data.rebuild_aborted.logical_drive, 4014 ld->cl_name, 4015 (cn->detail == 2) ? "read" : "write"); 4016 break; 4017 } 4018 break; 4019 4020 case CISS_NOTIFY_LOGICAL_ERROR: 4021 if (cn->detail == 0) { 4022 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4023 cn->data.io_error.logical_drive, 4024 ld->cl_name, 4025 cn->data.io_error.failure_bus, 4026 cn->data.io_error.failure_drive); 4027 /* XXX should we take the drive down at this point, or will we be told? */ 4028 } 4029 break; 4030 4031 case CISS_NOTIFY_LOGICAL_SURFACE: 4032 if (cn->detail == 0) 4033 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4034 cn->data.consistency_completed.logical_drive, 4035 ld->cl_name); 4036 break; 4037 } 4038 } 4039 4040 /************************************************************************ 4041 * Handle a notify event relating to the status of a physical drive. 4042 */ 4043 static void 4044 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4045 { 4046 } 4047 4048 /************************************************************************ 4049 * Handle a notify event relating to the status of a physical drive. 4050 */ 4051 static void 4052 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4053 { 4054 struct ciss_lun_report *cll = NULL; 4055 int bus, target; 4056 4057 switch (cn->subclass) { 4058 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4059 case CISS_NOTIFY_HOTPLUG_NONDISK: 4060 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4061 target = 4062 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4063 4064 if (cn->detail == 0) { 4065 /* 4066 * Mark the device offline so that it'll start producing selection 4067 * timeouts to the upper layer. 4068 */ 4069 if ((bus >= 0) && (target >= 0)) 4070 sc->ciss_physical[bus][target].cp_online = 0; 4071 } else { 4072 /* 4073 * Rescan the physical lun list for new items 4074 */ 4075 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4076 CISS_MAX_PHYSICAL); 4077 if (cll == NULL) { 4078 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4079 break; 4080 } 4081 ciss_filter_physical(sc, cll); 4082 } 4083 break; 4084 4085 default: 4086 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4087 return; 4088 } 4089 4090 if (cll != NULL) 4091 free(cll, CISS_MALLOC_CLASS); 4092 } 4093 4094 /************************************************************************ 4095 * Handle deferred processing of notify events. Notify events may need 4096 * sleep which is unsafe during an interrupt. 4097 */ 4098 static void 4099 ciss_notify_thread(void *arg) 4100 { 4101 struct ciss_softc *sc; 4102 struct ciss_request *cr; 4103 struct ciss_notify *cn; 4104 4105 sc = (struct ciss_softc *)arg; 4106 #if __FreeBSD_version >= 500000 4107 mtx_lock(&sc->ciss_mtx); 4108 #endif 4109 4110 for (;;) { 4111 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4112 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4113 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4114 } 4115 4116 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4117 break; 4118 4119 cr = ciss_dequeue_notify(sc); 4120 4121 if (cr == NULL) 4122 panic("cr null"); 4123 cn = (struct ciss_notify *)cr->cr_data; 4124 4125 switch (cn->class) { 4126 case CISS_NOTIFY_HOTPLUG: 4127 ciss_notify_hotplug(sc, cn); 4128 break; 4129 case CISS_NOTIFY_LOGICAL: 4130 ciss_notify_logical(sc, cn); 4131 break; 4132 case CISS_NOTIFY_PHYSICAL: 4133 ciss_notify_physical(sc, cn); 4134 break; 4135 } 4136 4137 ciss_release_request(cr); 4138 4139 } 4140 sc->ciss_notify_thread = NULL; 4141 wakeup(&sc->ciss_notify_thread); 4142 4143 #if __FreeBSD_version >= 500000 4144 mtx_unlock(&sc->ciss_mtx); 4145 #endif 4146 kproc_exit(0); 4147 } 4148 4149 /************************************************************************ 4150 * Start the notification kernel thread. 4151 */ 4152 static void 4153 ciss_spawn_notify_thread(struct ciss_softc *sc) 4154 { 4155 4156 #if __FreeBSD_version > 500005 4157 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4158 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4159 device_get_unit(sc->ciss_dev))) 4160 #else 4161 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4162 &sc->ciss_notify_thread, "ciss_notify%d", 4163 device_get_unit(sc->ciss_dev))) 4164 #endif 4165 panic("Could not create notify thread\n"); 4166 } 4167 4168 /************************************************************************ 4169 * Kill the notification kernel thread. 4170 */ 4171 static void 4172 ciss_kill_notify_thread(struct ciss_softc *sc) 4173 { 4174 4175 if (sc->ciss_notify_thread == NULL) 4176 return; 4177 4178 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4179 wakeup(&sc->ciss_notify); 4180 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4181 } 4182 4183 /************************************************************************ 4184 * Print a request. 4185 */ 4186 static void 4187 ciss_print_request(struct ciss_request *cr) 4188 { 4189 struct ciss_softc *sc; 4190 struct ciss_command *cc; 4191 int i; 4192 4193 sc = cr->cr_sc; 4194 cc = cr->cr_cc; 4195 4196 ciss_printf(sc, "REQUEST @ %p\n", cr); 4197 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4198 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4199 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4200 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4201 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4202 switch(cc->header.address.mode.mode) { 4203 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4204 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4205 ciss_printf(sc, " physical bus %d target %d\n", 4206 cc->header.address.physical.bus, cc->header.address.physical.target); 4207 break; 4208 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4209 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4210 break; 4211 } 4212 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4213 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4214 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4215 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4216 cc->cdb.cdb_length, 4217 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4218 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4219 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4220 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4221 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4222 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4223 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4224 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4225 4226 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4227 /* XXX print error info */ 4228 } else { 4229 /* since we don't use chained s/g, don't support it here */ 4230 for (i = 0; i < cc->header.sg_in_list; i++) { 4231 if ((i % 4) == 0) 4232 ciss_printf(sc, " "); 4233 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4234 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4235 printf("\n"); 4236 } 4237 } 4238 } 4239 4240 /************************************************************************ 4241 * Print information about the status of a logical drive. 4242 */ 4243 static void 4244 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4245 { 4246 int bus, target, i; 4247 4248 if (ld->cl_lstatus == NULL) { 4249 printf("does not exist\n"); 4250 return; 4251 } 4252 4253 /* print drive status */ 4254 switch(ld->cl_lstatus->status) { 4255 case CISS_LSTATUS_OK: 4256 printf("online\n"); 4257 break; 4258 case CISS_LSTATUS_INTERIM_RECOVERY: 4259 printf("in interim recovery mode\n"); 4260 break; 4261 case CISS_LSTATUS_READY_RECOVERY: 4262 printf("ready to begin recovery\n"); 4263 break; 4264 case CISS_LSTATUS_RECOVERING: 4265 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4266 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4267 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4268 bus, target, ld->cl_lstatus->blocks_to_recover); 4269 break; 4270 case CISS_LSTATUS_EXPANDING: 4271 printf("being expanded, %u blocks remaining\n", 4272 ld->cl_lstatus->blocks_to_recover); 4273 break; 4274 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4275 printf("queued for expansion\n"); 4276 break; 4277 case CISS_LSTATUS_FAILED: 4278 printf("queued for expansion\n"); 4279 break; 4280 case CISS_LSTATUS_WRONG_PDRIVE: 4281 printf("wrong physical drive inserted\n"); 4282 break; 4283 case CISS_LSTATUS_MISSING_PDRIVE: 4284 printf("missing a needed physical drive\n"); 4285 break; 4286 case CISS_LSTATUS_BECOMING_READY: 4287 printf("becoming ready\n"); 4288 break; 4289 } 4290 4291 /* print failed physical drives */ 4292 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4293 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4294 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4295 if (bus == -1) 4296 continue; 4297 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4298 ld->cl_lstatus->drive_failure_map[i]); 4299 } 4300 } 4301 4302 #ifdef CISS_DEBUG 4303 /************************************************************************ 4304 * Print information about the controller/driver. 4305 */ 4306 static void 4307 ciss_print_adapter(struct ciss_softc *sc) 4308 { 4309 int i, j; 4310 4311 ciss_printf(sc, "ADAPTER:\n"); 4312 for (i = 0; i < CISSQ_COUNT; i++) { 4313 ciss_printf(sc, "%s %d/%d\n", 4314 i == 0 ? "free" : 4315 i == 1 ? "busy" : "complete", 4316 sc->ciss_qstat[i].q_length, 4317 sc->ciss_qstat[i].q_max); 4318 } 4319 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4320 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4321 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4322 4323 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4324 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4325 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4326 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4327 } 4328 } 4329 4330 /* XXX Should physical drives be printed out here? */ 4331 4332 for (i = 1; i < sc->ciss_max_requests; i++) 4333 ciss_print_request(sc->ciss_request + i); 4334 } 4335 4336 /* DDB hook */ 4337 static void 4338 ciss_print0(void) 4339 { 4340 struct ciss_softc *sc; 4341 4342 sc = devclass_get_softc(devclass_find("ciss"), 0); 4343 if (sc == NULL) { 4344 printf("no ciss controllers\n"); 4345 } else { 4346 ciss_print_adapter(sc); 4347 } 4348 } 4349 #endif 4350 4351 /************************************************************************ 4352 * Return a name for a logical drive status value. 4353 */ 4354 static const char * 4355 ciss_name_ldrive_status(int status) 4356 { 4357 switch (status) { 4358 case CISS_LSTATUS_OK: 4359 return("OK"); 4360 case CISS_LSTATUS_FAILED: 4361 return("failed"); 4362 case CISS_LSTATUS_NOT_CONFIGURED: 4363 return("not configured"); 4364 case CISS_LSTATUS_INTERIM_RECOVERY: 4365 return("interim recovery"); 4366 case CISS_LSTATUS_READY_RECOVERY: 4367 return("ready for recovery"); 4368 case CISS_LSTATUS_RECOVERING: 4369 return("recovering"); 4370 case CISS_LSTATUS_WRONG_PDRIVE: 4371 return("wrong physical drive inserted"); 4372 case CISS_LSTATUS_MISSING_PDRIVE: 4373 return("missing physical drive"); 4374 case CISS_LSTATUS_EXPANDING: 4375 return("expanding"); 4376 case CISS_LSTATUS_BECOMING_READY: 4377 return("becoming ready"); 4378 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4379 return("queued for expansion"); 4380 } 4381 return("unknown status"); 4382 } 4383 4384 /************************************************************************ 4385 * Return an online/offline/nonexistent value for a logical drive 4386 * status value. 4387 */ 4388 static int 4389 ciss_decode_ldrive_status(int status) 4390 { 4391 switch(status) { 4392 case CISS_LSTATUS_NOT_CONFIGURED: 4393 return(CISS_LD_NONEXISTENT); 4394 4395 case CISS_LSTATUS_OK: 4396 case CISS_LSTATUS_INTERIM_RECOVERY: 4397 case CISS_LSTATUS_READY_RECOVERY: 4398 case CISS_LSTATUS_RECOVERING: 4399 case CISS_LSTATUS_EXPANDING: 4400 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4401 return(CISS_LD_ONLINE); 4402 4403 case CISS_LSTATUS_FAILED: 4404 case CISS_LSTATUS_WRONG_PDRIVE: 4405 case CISS_LSTATUS_MISSING_PDRIVE: 4406 case CISS_LSTATUS_BECOMING_READY: 4407 default: 4408 return(CISS_LD_OFFLINE); 4409 } 4410 } 4411 4412 4413 /************************************************************************ 4414 * Return a name for a logical drive's organisation. 4415 */ 4416 static const char * 4417 ciss_name_ldrive_org(int org) 4418 { 4419 switch(org) { 4420 case CISS_LDRIVE_RAID0: 4421 return("RAID 0"); 4422 case CISS_LDRIVE_RAID1: 4423 return("RAID 1"); 4424 case CISS_LDRIVE_RAID4: 4425 return("RAID 4"); 4426 case CISS_LDRIVE_RAID5: 4427 return("RAID 5"); 4428 case CISS_LDRIVE_RAID51: 4429 return("RAID 5+1"); 4430 case CISS_LDRIVE_RAIDADG: 4431 return("RAID ADG"); 4432 } 4433 return("unkown"); 4434 } 4435 4436 /************************************************************************ 4437 * Return a name for a command status value. 4438 */ 4439 static const char * 4440 ciss_name_command_status(int status) 4441 { 4442 switch(status) { 4443 case CISS_CMD_STATUS_SUCCESS: 4444 return("success"); 4445 case CISS_CMD_STATUS_TARGET_STATUS: 4446 return("target status"); 4447 case CISS_CMD_STATUS_DATA_UNDERRUN: 4448 return("data underrun"); 4449 case CISS_CMD_STATUS_DATA_OVERRUN: 4450 return("data overrun"); 4451 case CISS_CMD_STATUS_INVALID_COMMAND: 4452 return("invalid command"); 4453 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4454 return("protocol error"); 4455 case CISS_CMD_STATUS_HARDWARE_ERROR: 4456 return("hardware error"); 4457 case CISS_CMD_STATUS_CONNECTION_LOST: 4458 return("connection lost"); 4459 case CISS_CMD_STATUS_ABORTED: 4460 return("aborted"); 4461 case CISS_CMD_STATUS_ABORT_FAILED: 4462 return("abort failed"); 4463 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4464 return("unsolicited abort"); 4465 case CISS_CMD_STATUS_TIMEOUT: 4466 return("timeout"); 4467 case CISS_CMD_STATUS_UNABORTABLE: 4468 return("unabortable"); 4469 } 4470 return("unknown status"); 4471 } 4472 4473 /************************************************************************ 4474 * Handle an open on the control device. 4475 */ 4476 static int 4477 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4478 { 4479 struct ciss_softc *sc; 4480 4481 debug_called(1); 4482 4483 sc = (struct ciss_softc *)dev->si_drv1; 4484 4485 /* we might want to veto if someone already has us open */ 4486 4487 mtx_lock(&sc->ciss_mtx); 4488 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4489 mtx_unlock(&sc->ciss_mtx); 4490 return(0); 4491 } 4492 4493 /************************************************************************ 4494 * Handle the last close on the control device. 4495 */ 4496 static int 4497 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4498 { 4499 struct ciss_softc *sc; 4500 4501 debug_called(1); 4502 4503 sc = (struct ciss_softc *)dev->si_drv1; 4504 4505 mtx_lock(&sc->ciss_mtx); 4506 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4507 mtx_unlock(&sc->ciss_mtx); 4508 return (0); 4509 } 4510 4511 /******************************************************************************** 4512 * Handle adapter-specific control operations. 4513 * 4514 * Note that the API here is compatible with the Linux driver, in order to 4515 * simplify the porting of Compaq's userland tools. 4516 */ 4517 static int 4518 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4519 { 4520 struct ciss_softc *sc; 4521 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4522 #ifdef __amd64__ 4523 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4524 IOCTL_Command_struct ioc_swab; 4525 #endif 4526 int error; 4527 4528 debug_called(1); 4529 4530 sc = (struct ciss_softc *)dev->si_drv1; 4531 error = 0; 4532 mtx_lock(&sc->ciss_mtx); 4533 4534 switch(cmd) { 4535 case CCISS_GETQSTATS: 4536 { 4537 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4538 4539 switch (cr->cs_item) { 4540 case CISSQ_FREE: 4541 case CISSQ_NOTIFY: 4542 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4543 sizeof(struct ciss_qstat)); 4544 break; 4545 default: 4546 error = ENOIOCTL; 4547 break; 4548 } 4549 4550 break; 4551 } 4552 4553 case CCISS_GETPCIINFO: 4554 { 4555 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4556 4557 pis->bus = pci_get_bus(sc->ciss_dev); 4558 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4559 pis->board_id = pci_get_devid(sc->ciss_dev); 4560 4561 break; 4562 } 4563 4564 case CCISS_GETINTINFO: 4565 { 4566 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4567 4568 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4569 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4570 4571 break; 4572 } 4573 4574 case CCISS_SETINTINFO: 4575 { 4576 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4577 4578 if ((cis->delay == 0) && (cis->count == 0)) { 4579 error = EINVAL; 4580 break; 4581 } 4582 4583 /* 4584 * XXX apparently this is only safe if the controller is idle, 4585 * we should suspend it before doing this. 4586 */ 4587 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4588 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4589 4590 if (ciss_update_config(sc)) 4591 error = EIO; 4592 4593 /* XXX resume the controller here */ 4594 break; 4595 } 4596 4597 case CCISS_GETNODENAME: 4598 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4599 sizeof(NodeName_type)); 4600 break; 4601 4602 case CCISS_SETNODENAME: 4603 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4604 sizeof(NodeName_type)); 4605 if (ciss_update_config(sc)) 4606 error = EIO; 4607 break; 4608 4609 case CCISS_GETHEARTBEAT: 4610 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4611 break; 4612 4613 case CCISS_GETBUSTYPES: 4614 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4615 break; 4616 4617 case CCISS_GETFIRMVER: 4618 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4619 sizeof(FirmwareVer_type)); 4620 break; 4621 4622 case CCISS_GETDRIVERVER: 4623 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4624 break; 4625 4626 case CCISS_REVALIDVOLS: 4627 /* 4628 * This is a bit ugly; to do it "right" we really need 4629 * to find any disks that have changed, kick CAM off them, 4630 * then rescan only these disks. It'd be nice if they 4631 * a) told us which disk(s) they were going to play with, 4632 * and b) which ones had arrived. 8( 4633 */ 4634 break; 4635 4636 #ifdef __amd64__ 4637 case CCISS_PASSTHRU32: 4638 ioc_swab.LUN_info = ioc32->LUN_info; 4639 ioc_swab.Request = ioc32->Request; 4640 ioc_swab.error_info = ioc32->error_info; 4641 ioc_swab.buf_size = ioc32->buf_size; 4642 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4643 ioc = &ioc_swab; 4644 /* FALLTHROUGH */ 4645 #endif 4646 4647 case CCISS_PASSTHRU: 4648 error = ciss_user_command(sc, ioc); 4649 break; 4650 4651 default: 4652 debug(0, "unknown ioctl 0x%lx", cmd); 4653 4654 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4655 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4656 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4657 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4658 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4659 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4660 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4661 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4662 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4663 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4664 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4665 4666 error = ENOIOCTL; 4667 break; 4668 } 4669 4670 mtx_unlock(&sc->ciss_mtx); 4671 return(error); 4672 } 4673