1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_setup_msix(struct ciss_softc *sc); 120 static int ciss_init_perf(struct ciss_softc *sc); 121 static int ciss_wait_adapter(struct ciss_softc *sc); 122 static int ciss_flush_adapter(struct ciss_softc *sc); 123 static int ciss_init_requests(struct ciss_softc *sc); 124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126 static int ciss_identify_adapter(struct ciss_softc *sc); 127 static int ciss_init_logical(struct ciss_softc *sc); 128 static int ciss_init_physical(struct ciss_softc *sc); 129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_update_config(struct ciss_softc *sc); 133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static void ciss_init_sysctl(struct ciss_softc *sc); 135 static void ciss_soft_reset(struct ciss_softc *sc); 136 static void ciss_free(struct ciss_softc *sc); 137 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138 static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140 /* request submission/completion */ 141 static int ciss_start(struct ciss_request *cr); 142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_intr(void *arg); 145 static void ciss_perf_intr(void *arg); 146 static void ciss_perf_msi_intr(void *arg); 147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149 static int ciss_synch_request(struct ciss_request *cr, int timeout); 150 static int ciss_poll_request(struct ciss_request *cr, int timeout); 151 static int ciss_wait_request(struct ciss_request *cr, int timeout); 152 #if 0 153 static int ciss_abort_request(struct ciss_request *cr); 154 #endif 155 156 /* request queueing */ 157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158 static void ciss_preen_command(struct ciss_request *cr); 159 static void ciss_release_request(struct ciss_request *cr); 160 161 /* request helpers */ 162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166 /* DMA map/unmap */ 167 static int ciss_map_request(struct ciss_request *cr); 168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170 static void ciss_unmap_request(struct ciss_request *cr); 171 172 /* CAM interface */ 173 static int ciss_cam_init(struct ciss_softc *sc); 174 static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176 static void ciss_cam_rescan_all(struct ciss_softc *sc); 177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static void ciss_cam_poll(struct cam_sim *sim); 182 static void ciss_cam_complete(struct ciss_request *cr); 183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188 /* periodic status monitoring */ 189 static void ciss_periodic(void *arg); 190 static void ciss_nop_complete(struct ciss_request *cr); 191 static void ciss_disable_adapter(struct ciss_softc *sc); 192 static void ciss_notify_event(struct ciss_softc *sc); 193 static void ciss_notify_complete(struct ciss_request *cr); 194 static int ciss_notify_abort(struct ciss_softc *sc); 195 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200 /* debugging output */ 201 static void ciss_print_request(struct ciss_request *cr); 202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203 static const char *ciss_name_ldrive_status(int status); 204 static int ciss_decode_ldrive_status(int status); 205 static const char *ciss_name_ldrive_org(int org); 206 static const char *ciss_name_command_status(int status); 207 208 /* 209 * PCI bus interface. 210 */ 211 static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 { 0, 0 } 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 228 MODULE_DEPEND(ciss, cam, 1, 1, 1); 229 MODULE_DEPEND(ciss, pci, 1, 1, 1); 230 231 /* 232 * Control device interface. 233 */ 234 static d_open_t ciss_open; 235 static d_close_t ciss_close; 236 static d_ioctl_t ciss_ioctl; 237 238 static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245 }; 246 247 /* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251 static unsigned int ciss_expose_hidden_physical = 0; 252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254 static unsigned int ciss_nop_message_heartbeat = 0; 255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257 /* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263 static int ciss_force_transport = 0; 264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266 /* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272 static int ciss_force_interrupt = 0; 273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275 /************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282 #define CISS_BOARD_SA5 (1<<0) 283 #define CISS_BOARD_SA5B (1<<1) 284 285 static struct 286 { 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291 } ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" }, 293 { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" }, 294 { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" }, 295 { 0x0e11, 0x4083, CISS_BOARD_SA5B, "HP Smart Array 5312" }, 296 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 297 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 298 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 299 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 300 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 301 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 302 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 303 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 307 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 309 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 310 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 315 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 316 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 324 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 325 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 326 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 327 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 328 { 0, 0, 0, NULL } 329 }; 330 331 /************************************************************************ 332 * Find a match for the device in our list of known adapters. 333 */ 334 static int 335 ciss_lookup(device_t dev) 336 { 337 int i; 338 339 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 340 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 341 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 342 return(i); 343 } 344 return(-1); 345 } 346 347 /************************************************************************ 348 * Match a known CISS adapter. 349 */ 350 static int 351 ciss_probe(device_t dev) 352 { 353 int i; 354 355 i = ciss_lookup(dev); 356 if (i != -1) { 357 device_set_desc(dev, ciss_vendor_data[i].desc); 358 return(BUS_PROBE_DEFAULT); 359 } 360 return(ENOENT); 361 } 362 363 /************************************************************************ 364 * Attach the driver to this adapter. 365 */ 366 static int 367 ciss_attach(device_t dev) 368 { 369 struct ciss_softc *sc; 370 int i, error; 371 372 debug_called(1); 373 374 #ifdef CISS_DEBUG 375 /* print structure/union sizes */ 376 debug_struct(ciss_command); 377 debug_struct(ciss_header); 378 debug_union(ciss_device_address); 379 debug_struct(ciss_cdb); 380 debug_struct(ciss_report_cdb); 381 debug_struct(ciss_notify_cdb); 382 debug_struct(ciss_notify); 383 debug_struct(ciss_message_cdb); 384 debug_struct(ciss_error_info_pointer); 385 debug_struct(ciss_error_info); 386 debug_struct(ciss_sg_entry); 387 debug_struct(ciss_config_table); 388 debug_struct(ciss_bmic_cdb); 389 debug_struct(ciss_bmic_id_ldrive); 390 debug_struct(ciss_bmic_id_lstatus); 391 debug_struct(ciss_bmic_id_table); 392 debug_struct(ciss_bmic_id_pdrive); 393 debug_struct(ciss_bmic_blink_pdrive); 394 debug_struct(ciss_bmic_flush_cache); 395 debug_const(CISS_MAX_REQUESTS); 396 debug_const(CISS_MAX_LOGICAL); 397 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 398 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 399 debug_const(CISS_COMMAND_ALLOC_SIZE); 400 debug_const(CISS_COMMAND_SG_LENGTH); 401 402 debug_type(cciss_pci_info_struct); 403 debug_type(cciss_coalint_struct); 404 debug_type(cciss_coalint_struct); 405 debug_type(NodeName_type); 406 debug_type(NodeName_type); 407 debug_type(Heartbeat_type); 408 debug_type(BusTypes_type); 409 debug_type(FirmwareVer_type); 410 debug_type(DriverVer_type); 411 debug_type(IOCTL_Command_struct); 412 #endif 413 414 sc = device_get_softc(dev); 415 sc->ciss_dev = dev; 416 417 /* 418 * Work out adapter type. 419 */ 420 i = ciss_lookup(dev); 421 if (i < 0) { 422 ciss_printf(sc, "unknown adapter type\n"); 423 error = ENXIO; 424 goto out; 425 } 426 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 427 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 428 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 429 sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 430 } else { 431 /* really an error on our part */ 432 ciss_printf(sc, "unable to determine hardware type\n"); 433 error = ENXIO; 434 goto out; 435 } 436 437 /* 438 * Do PCI-specific init. 439 */ 440 if ((error = ciss_init_pci(sc)) != 0) 441 goto out; 442 443 /* 444 * Initialise driver queues. 445 */ 446 ciss_initq_free(sc); 447 ciss_initq_notify(sc); 448 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 449 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 450 451 /* 452 * Initalize device sysctls. 453 */ 454 ciss_init_sysctl(sc); 455 456 /* 457 * Initialise command/request pool. 458 */ 459 if ((error = ciss_init_requests(sc)) != 0) 460 goto out; 461 462 /* 463 * Get adapter information. 464 */ 465 if ((error = ciss_identify_adapter(sc)) != 0) 466 goto out; 467 468 /* 469 * Find all the physical devices. 470 */ 471 if ((error = ciss_init_physical(sc)) != 0) 472 goto out; 473 474 /* 475 * Build our private table of logical devices. 476 */ 477 if ((error = ciss_init_logical(sc)) != 0) 478 goto out; 479 480 /* 481 * Enable interrupts so that the CAM scan can complete. 482 */ 483 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 484 485 /* 486 * Initialise the CAM interface. 487 */ 488 if ((error = ciss_cam_init(sc)) != 0) 489 goto out; 490 491 /* 492 * Start the heartbeat routine and event chain. 493 */ 494 ciss_periodic(sc); 495 496 /* 497 * Create the control device. 498 */ 499 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 500 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 501 "ciss%d", device_get_unit(sc->ciss_dev)); 502 sc->ciss_dev_t->si_drv1 = sc; 503 504 /* 505 * The adapter is running; synchronous commands can now sleep 506 * waiting for an interrupt to signal completion. 507 */ 508 sc->ciss_flags |= CISS_FLAG_RUNNING; 509 510 ciss_spawn_notify_thread(sc); 511 512 error = 0; 513 out: 514 if (error != 0) 515 ciss_free(sc); 516 return(error); 517 } 518 519 /************************************************************************ 520 * Detach the driver from this adapter. 521 */ 522 static int 523 ciss_detach(device_t dev) 524 { 525 struct ciss_softc *sc = device_get_softc(dev); 526 527 debug_called(1); 528 529 mtx_lock(&sc->ciss_mtx); 530 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 531 mtx_unlock(&sc->ciss_mtx); 532 return (EBUSY); 533 } 534 535 /* flush adapter cache */ 536 ciss_flush_adapter(sc); 537 538 /* release all resources. The mutex is released and freed here too. */ 539 ciss_free(sc); 540 541 return(0); 542 } 543 544 /************************************************************************ 545 * Prepare adapter for system shutdown. 546 */ 547 static int 548 ciss_shutdown(device_t dev) 549 { 550 struct ciss_softc *sc = device_get_softc(dev); 551 552 debug_called(1); 553 554 mtx_lock(&sc->ciss_mtx); 555 /* flush adapter cache */ 556 ciss_flush_adapter(sc); 557 558 if (sc->ciss_soft_reset) 559 ciss_soft_reset(sc); 560 mtx_unlock(&sc->ciss_mtx); 561 562 return(0); 563 } 564 565 static void 566 ciss_init_sysctl(struct ciss_softc *sc) 567 { 568 569 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 570 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 571 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 572 } 573 574 /************************************************************************ 575 * Perform PCI-specific attachment actions. 576 */ 577 static int 578 ciss_init_pci(struct ciss_softc *sc) 579 { 580 uintptr_t cbase, csize, cofs; 581 uint32_t method, supported_methods; 582 int error; 583 void *intr; 584 585 debug_called(1); 586 587 /* 588 * Allocate register window first (we need this to find the config 589 * struct). 590 */ 591 error = ENXIO; 592 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 593 if ((sc->ciss_regs_resource = 594 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 595 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 596 ciss_printf(sc, "can't allocate register window\n"); 597 return(ENXIO); 598 } 599 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 600 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 601 602 /* 603 * Find the BAR holding the config structure. If it's not the one 604 * we already mapped for registers, map it too. 605 */ 606 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 607 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 608 if ((sc->ciss_cfg_resource = 609 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 610 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 611 ciss_printf(sc, "can't allocate config window\n"); 612 return(ENXIO); 613 } 614 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 615 csize = rman_get_end(sc->ciss_cfg_resource) - 616 rman_get_start(sc->ciss_cfg_resource) + 1; 617 } else { 618 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 619 csize = rman_get_end(sc->ciss_regs_resource) - 620 rman_get_start(sc->ciss_regs_resource) + 1; 621 } 622 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 623 624 /* 625 * Use the base/size/offset values we just calculated to 626 * sanity-check the config structure. If it's OK, point to it. 627 */ 628 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 629 ciss_printf(sc, "config table outside window\n"); 630 return(ENXIO); 631 } 632 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 633 debug(1, "config struct at %p", sc->ciss_cfg); 634 635 /* 636 * Calculate the number of request structures/commands we are 637 * going to provide for this adapter. 638 */ 639 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 640 641 /* 642 * Validate the config structure. If we supported other transport 643 * methods, we could select amongst them at this point in time. 644 */ 645 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 646 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 647 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 648 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 649 return(ENXIO); 650 } 651 652 /* 653 * Select the mode of operation, prefer Performant. 654 */ 655 if (!(sc->ciss_cfg->supported_methods & 656 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 657 ciss_printf(sc, "No supported transport layers: 0x%x\n", 658 sc->ciss_cfg->supported_methods); 659 return(ENXIO); 660 } 661 662 switch (ciss_force_transport) { 663 case 1: 664 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 665 break; 666 case 2: 667 supported_methods = CISS_TRANSPORT_METHOD_PERF; 668 break; 669 default: 670 supported_methods = sc->ciss_cfg->supported_methods; 671 break; 672 } 673 674 setup: 675 if (supported_methods & CISS_TRANSPORT_METHOD_PERF) { 676 method = CISS_TRANSPORT_METHOD_PERF; 677 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 678 sc->ciss_cfg->transport_offset); 679 if (ciss_init_perf(sc)) { 680 supported_methods &= ~method; 681 goto setup; 682 } 683 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 684 method = CISS_TRANSPORT_METHOD_SIMPLE; 685 } else { 686 ciss_printf(sc, "No supported transport methods: 0x%x\n", 687 sc->ciss_cfg->supported_methods); 688 return(ENXIO); 689 } 690 691 /* 692 * Tell it we're using the low 4GB of RAM. Set the default interrupt 693 * coalescing options. 694 */ 695 sc->ciss_cfg->requested_method = method; 696 sc->ciss_cfg->command_physlimit = 0; 697 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 698 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 699 700 #ifdef __i386__ 701 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 702 #endif 703 704 if (ciss_update_config(sc)) { 705 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 706 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 707 return(ENXIO); 708 } 709 if ((sc->ciss_cfg->active_method & method) == 0) { 710 supported_methods &= ~method; 711 if (supported_methods == 0) { 712 ciss_printf(sc, "adapter refuses to go into available transports " 713 "mode (0x%x, 0x%x)\n", supported_methods, 714 sc->ciss_cfg->active_method); 715 return(ENXIO); 716 } else 717 goto setup; 718 } 719 720 /* 721 * Wait for the adapter to come ready. 722 */ 723 if ((error = ciss_wait_adapter(sc)) != 0) 724 return(error); 725 726 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 727 * interrupts have a rid of 0, this will be overridden if MSIX is used. 728 */ 729 sc->ciss_irq_rid[0] = 0; 730 if (method == CISS_TRANSPORT_METHOD_PERF) { 731 ciss_printf(sc, "PERFORMANT Transport\n"); 732 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) 733 intr = ciss_perf_msi_intr; 734 else 735 intr = ciss_perf_intr; 736 } else { 737 ciss_printf(sc, "SIMPLE Transport\n"); 738 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 739 if (ciss_force_interrupt == 2) 740 /* If this fails, we automatically revert to INTx */ 741 ciss_setup_msix(sc); 742 sc->ciss_perf = NULL; 743 intr = ciss_intr; 744 } 745 746 /* 747 * Turn off interrupts before we go routing anything. 748 */ 749 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 750 751 /* 752 * Allocate and set up our interrupt. 753 */ 754 if ((sc->ciss_irq_resource = 755 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 756 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 757 ciss_printf(sc, "can't allocate interrupt\n"); 758 return(ENXIO); 759 } 760 761 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 762 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 763 &sc->ciss_intr)) { 764 ciss_printf(sc, "can't set up interrupt\n"); 765 return(ENXIO); 766 } 767 768 /* 769 * Allocate the parent bus DMA tag appropriate for our PCI 770 * interface. 771 * 772 * Note that "simple" adapters can only address within a 32-bit 773 * span. 774 */ 775 if (bus_dma_tag_create(NULL, /* parent */ 776 1, 0, /* alignment, boundary */ 777 BUS_SPACE_MAXADDR, /* lowaddr */ 778 BUS_SPACE_MAXADDR, /* highaddr */ 779 NULL, NULL, /* filter, filterarg */ 780 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 781 CISS_COMMAND_SG_LENGTH, /* nsegments */ 782 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 783 0, /* flags */ 784 NULL, NULL, /* lockfunc, lockarg */ 785 &sc->ciss_parent_dmat)) { 786 ciss_printf(sc, "can't allocate parent DMA tag\n"); 787 return(ENOMEM); 788 } 789 790 /* 791 * Create DMA tag for mapping buffers into adapter-addressable 792 * space. 793 */ 794 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 795 1, 0, /* alignment, boundary */ 796 BUS_SPACE_MAXADDR, /* lowaddr */ 797 BUS_SPACE_MAXADDR, /* highaddr */ 798 NULL, NULL, /* filter, filterarg */ 799 MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */ 800 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 801 BUS_DMA_ALLOCNOW, /* flags */ 802 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 803 &sc->ciss_buffer_dmat)) { 804 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 805 return(ENOMEM); 806 } 807 return(0); 808 } 809 810 /************************************************************************ 811 * Setup MSI/MSIX operation (Performant only) 812 * Four interrupts are available, but we only use 1 right now. 813 */ 814 static int 815 ciss_setup_msix(struct ciss_softc *sc) 816 { 817 uint32_t id; 818 int val, i; 819 820 /* Weed out devices that don't actually support MSI */ 821 id = (pci_get_subvendor(sc->ciss_dev) << 16) | 822 pci_get_subdevice(sc->ciss_dev); 823 if ((id == 0x0e114070) || (id == 0x0e114080) || (id == 0x0e114082) || 824 (id == 0x0e114083)) 825 return (EINVAL); 826 827 val = pci_msix_count(sc->ciss_dev); 828 if ((val != CISS_MSI_COUNT) || (pci_alloc_msix(sc->ciss_dev, &val) != 0)) 829 return (EINVAL); 830 831 sc->ciss_msi = val; 832 ciss_printf(sc, "Using MSIX interrupt\n"); 833 834 for (i = 0; i < CISS_MSI_COUNT; i++) 835 sc->ciss_irq_rid[i] = i + 1; 836 837 return (0); 838 839 } 840 841 /************************************************************************ 842 * Setup the Performant structures. 843 */ 844 static int 845 ciss_init_perf(struct ciss_softc *sc) 846 { 847 struct ciss_perf_config *pc = sc->ciss_perf; 848 int reply_size; 849 850 /* 851 * Create the DMA tag for the reply queue. 852 */ 853 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 854 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 855 1, 0, /* alignment, boundary */ 856 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 857 BUS_SPACE_MAXADDR, /* highaddr */ 858 NULL, NULL, /* filter, filterarg */ 859 reply_size, 1, /* maxsize, nsegments */ 860 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 861 0, /* flags */ 862 NULL, NULL, /* lockfunc, lockarg */ 863 &sc->ciss_reply_dmat)) { 864 ciss_printf(sc, "can't allocate reply DMA tag\n"); 865 return(ENOMEM); 866 } 867 /* 868 * Allocate memory and make it available for DMA. 869 */ 870 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 871 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 872 ciss_printf(sc, "can't allocate reply memory\n"); 873 return(ENOMEM); 874 } 875 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 876 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 877 bzero(sc->ciss_reply, reply_size); 878 879 sc->ciss_cycle = 0x1; 880 sc->ciss_rqidx = 0; 881 882 /* 883 * Preload the fetch table with common command sizes. This allows the 884 * hardware to not waste bus cycles for typical i/o commands, but also not 885 * tax the driver to be too exact in choosing sizes. The table is optimized 886 * for page-aligned i/o's, but since most i/o comes from the various pagers, 887 * it's a reasonable assumption to make. 888 */ 889 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 890 pc->fetch_count[CISS_SG_FETCH_1] = 891 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 892 pc->fetch_count[CISS_SG_FETCH_2] = 893 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 894 pc->fetch_count[CISS_SG_FETCH_4] = 895 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 896 pc->fetch_count[CISS_SG_FETCH_8] = 897 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 898 pc->fetch_count[CISS_SG_FETCH_16] = 899 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 900 pc->fetch_count[CISS_SG_FETCH_32] = 901 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 902 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 903 904 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 905 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 906 pc->rq_bank_hi = 0; 907 pc->rq_bank_lo = 0; 908 pc->rq[0].rq_addr_hi = 0x0; 909 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 910 911 return(0); 912 } 913 914 /************************************************************************ 915 * Wait for the adapter to come ready. 916 */ 917 static int 918 ciss_wait_adapter(struct ciss_softc *sc) 919 { 920 int i; 921 922 debug_called(1); 923 924 /* 925 * Wait for the adapter to come ready. 926 */ 927 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 928 ciss_printf(sc, "waiting for adapter to come ready...\n"); 929 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 930 DELAY(1000000); /* one second */ 931 if (i > 30) { 932 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 933 return(EIO); 934 } 935 } 936 } 937 return(0); 938 } 939 940 /************************************************************************ 941 * Flush the adapter cache. 942 */ 943 static int 944 ciss_flush_adapter(struct ciss_softc *sc) 945 { 946 struct ciss_request *cr; 947 struct ciss_bmic_flush_cache *cbfc; 948 int error, command_status; 949 950 debug_called(1); 951 952 cr = NULL; 953 cbfc = NULL; 954 955 /* 956 * Build a BMIC request to flush the cache. We don't disable 957 * it, as we may be going to do more I/O (eg. we are emulating 958 * the Synchronise Cache command). 959 */ 960 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 961 error = ENOMEM; 962 goto out; 963 } 964 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 965 (void **)&cbfc, sizeof(*cbfc))) != 0) 966 goto out; 967 968 /* 969 * Submit the request and wait for it to complete. 970 */ 971 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 972 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 973 goto out; 974 } 975 976 /* 977 * Check response. 978 */ 979 ciss_report_request(cr, &command_status, NULL); 980 switch(command_status) { 981 case CISS_CMD_STATUS_SUCCESS: 982 break; 983 default: 984 ciss_printf(sc, "error flushing cache (%s)\n", 985 ciss_name_command_status(command_status)); 986 error = EIO; 987 goto out; 988 } 989 990 out: 991 if (cbfc != NULL) 992 free(cbfc, CISS_MALLOC_CLASS); 993 if (cr != NULL) 994 ciss_release_request(cr); 995 return(error); 996 } 997 998 static void 999 ciss_soft_reset(struct ciss_softc *sc) 1000 { 1001 struct ciss_request *cr = NULL; 1002 struct ciss_command *cc; 1003 int i, error = 0; 1004 1005 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1006 /* only reset proxy controllers */ 1007 if (sc->ciss_controllers[i].physical.bus == 0) 1008 continue; 1009 1010 if ((error = ciss_get_request(sc, &cr)) != 0) 1011 break; 1012 1013 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1014 NULL, 0)) != 0) 1015 break; 1016 1017 cc = CISS_FIND_COMMAND(cr); 1018 cc->header.address = sc->ciss_controllers[i]; 1019 1020 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1021 break; 1022 1023 ciss_release_request(cr); 1024 } 1025 1026 if (error) 1027 ciss_printf(sc, "error resetting controller (%d)\n", error); 1028 1029 if (cr != NULL) 1030 ciss_release_request(cr); 1031 } 1032 1033 /************************************************************************ 1034 * Allocate memory for the adapter command structures, initialise 1035 * the request structures. 1036 * 1037 * Note that the entire set of commands are allocated in a single 1038 * contiguous slab. 1039 */ 1040 static int 1041 ciss_init_requests(struct ciss_softc *sc) 1042 { 1043 struct ciss_request *cr; 1044 int i; 1045 1046 debug_called(1); 1047 1048 if (bootverbose) 1049 ciss_printf(sc, "using %d of %d available commands\n", 1050 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1051 1052 /* 1053 * Create the DMA tag for commands. 1054 */ 1055 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1056 32, 0, /* alignment, boundary */ 1057 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1058 BUS_SPACE_MAXADDR, /* highaddr */ 1059 NULL, NULL, /* filter, filterarg */ 1060 CISS_COMMAND_ALLOC_SIZE * 1061 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1062 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1063 0, /* flags */ 1064 NULL, NULL, /* lockfunc, lockarg */ 1065 &sc->ciss_command_dmat)) { 1066 ciss_printf(sc, "can't allocate command DMA tag\n"); 1067 return(ENOMEM); 1068 } 1069 /* 1070 * Allocate memory and make it available for DMA. 1071 */ 1072 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1073 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1074 ciss_printf(sc, "can't allocate command memory\n"); 1075 return(ENOMEM); 1076 } 1077 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1078 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1079 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1080 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1081 1082 /* 1083 * Set up the request and command structures, push requests onto 1084 * the free queue. 1085 */ 1086 for (i = 1; i < sc->ciss_max_requests; i++) { 1087 cr = &sc->ciss_request[i]; 1088 cr->cr_sc = sc; 1089 cr->cr_tag = i; 1090 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1091 ciss_enqueue_free(cr); 1092 } 1093 return(0); 1094 } 1095 1096 static void 1097 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1098 { 1099 uint32_t *addr; 1100 1101 addr = arg; 1102 *addr = segs[0].ds_addr; 1103 } 1104 1105 /************************************************************************ 1106 * Identify the adapter, print some information about it. 1107 */ 1108 static int 1109 ciss_identify_adapter(struct ciss_softc *sc) 1110 { 1111 struct ciss_request *cr; 1112 int error, command_status; 1113 1114 debug_called(1); 1115 1116 cr = NULL; 1117 1118 /* 1119 * Get a request, allocate storage for the adapter data. 1120 */ 1121 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1122 (void **)&sc->ciss_id, 1123 sizeof(*sc->ciss_id))) != 0) 1124 goto out; 1125 1126 /* 1127 * Submit the request and wait for it to complete. 1128 */ 1129 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1130 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1131 goto out; 1132 } 1133 1134 /* 1135 * Check response. 1136 */ 1137 ciss_report_request(cr, &command_status, NULL); 1138 switch(command_status) { 1139 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1140 break; 1141 case CISS_CMD_STATUS_DATA_UNDERRUN: 1142 case CISS_CMD_STATUS_DATA_OVERRUN: 1143 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1144 default: 1145 ciss_printf(sc, "error reading adapter information (%s)\n", 1146 ciss_name_command_status(command_status)); 1147 error = EIO; 1148 goto out; 1149 } 1150 1151 /* sanity-check reply */ 1152 if (!sc->ciss_id->big_map_supported) { 1153 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1154 error = ENXIO; 1155 goto out; 1156 } 1157 1158 #if 0 1159 /* XXX later revisions may not need this */ 1160 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1161 #endif 1162 1163 /* XXX only really required for old 5300 adapters? */ 1164 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1165 1166 /* print information */ 1167 if (bootverbose) { 1168 #if 0 /* XXX proxy volumes??? */ 1169 ciss_printf(sc, " %d logical drive%s configured\n", 1170 sc->ciss_id->configured_logical_drives, 1171 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1172 #endif 1173 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1174 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1175 1176 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1177 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1178 ciss_printf(sc, " supported I/O methods 0x%b\n", 1179 sc->ciss_cfg->supported_methods, 1180 "\20\1READY\2simple\3performant\4MEMQ\n"); 1181 ciss_printf(sc, " active I/O method 0x%b\n", 1182 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1183 ciss_printf(sc, " 4G page base 0x%08x\n", 1184 sc->ciss_cfg->command_physlimit); 1185 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1186 sc->ciss_cfg->interrupt_coalesce_delay); 1187 ciss_printf(sc, " interrupt coalesce count %d\n", 1188 sc->ciss_cfg->interrupt_coalesce_count); 1189 ciss_printf(sc, " max outstanding commands %d\n", 1190 sc->ciss_cfg->max_outstanding_commands); 1191 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1192 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1193 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1194 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1195 } 1196 1197 out: 1198 if (error) { 1199 if (sc->ciss_id != NULL) { 1200 free(sc->ciss_id, CISS_MALLOC_CLASS); 1201 sc->ciss_id = NULL; 1202 } 1203 } 1204 if (cr != NULL) 1205 ciss_release_request(cr); 1206 return(error); 1207 } 1208 1209 /************************************************************************ 1210 * Helper routine for generating a list of logical and physical luns. 1211 */ 1212 static struct ciss_lun_report * 1213 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1214 { 1215 struct ciss_request *cr; 1216 struct ciss_command *cc; 1217 struct ciss_report_cdb *crc; 1218 struct ciss_lun_report *cll; 1219 int command_status; 1220 int report_size; 1221 int error = 0; 1222 1223 debug_called(1); 1224 1225 cr = NULL; 1226 cll = NULL; 1227 1228 /* 1229 * Get a request, allocate storage for the address list. 1230 */ 1231 if ((error = ciss_get_request(sc, &cr)) != 0) 1232 goto out; 1233 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1234 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1235 ciss_printf(sc, "can't allocate memory for lun report\n"); 1236 error = ENOMEM; 1237 goto out; 1238 } 1239 1240 /* 1241 * Build the Report Logical/Physical LUNs command. 1242 */ 1243 cc = CISS_FIND_COMMAND(cr); 1244 cr->cr_data = cll; 1245 cr->cr_length = report_size; 1246 cr->cr_flags = CISS_REQ_DATAIN; 1247 1248 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1249 cc->header.address.physical.bus = 0; 1250 cc->header.address.physical.target = 0; 1251 cc->cdb.cdb_length = sizeof(*crc); 1252 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1253 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1254 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1255 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1256 1257 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1258 bzero(crc, sizeof(*crc)); 1259 crc->opcode = opcode; 1260 crc->length = htonl(report_size); /* big-endian field */ 1261 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1262 1263 /* 1264 * Submit the request and wait for it to complete. (timeout 1265 * here should be much greater than above) 1266 */ 1267 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1268 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1269 goto out; 1270 } 1271 1272 /* 1273 * Check response. Note that data over/underrun is OK. 1274 */ 1275 ciss_report_request(cr, &command_status, NULL); 1276 switch(command_status) { 1277 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1278 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1279 break; 1280 case CISS_CMD_STATUS_DATA_OVERRUN: 1281 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1282 CISS_MAX_LOGICAL); 1283 break; 1284 default: 1285 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1286 ciss_name_command_status(command_status)); 1287 error = EIO; 1288 goto out; 1289 } 1290 ciss_release_request(cr); 1291 cr = NULL; 1292 1293 out: 1294 if (cr != NULL) 1295 ciss_release_request(cr); 1296 if (error && cll != NULL) { 1297 free(cll, CISS_MALLOC_CLASS); 1298 cll = NULL; 1299 } 1300 return(cll); 1301 } 1302 1303 /************************************************************************ 1304 * Find logical drives on the adapter. 1305 */ 1306 static int 1307 ciss_init_logical(struct ciss_softc *sc) 1308 { 1309 struct ciss_lun_report *cll; 1310 int error = 0, i, j; 1311 int ndrives; 1312 1313 debug_called(1); 1314 1315 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1316 CISS_MAX_LOGICAL); 1317 if (cll == NULL) { 1318 error = ENXIO; 1319 goto out; 1320 } 1321 1322 /* sanity-check reply */ 1323 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1324 if ((ndrives < 0) || (ndrives >= CISS_MAX_LOGICAL)) { 1325 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1326 ndrives, CISS_MAX_LOGICAL); 1327 error = ENXIO; 1328 goto out; 1329 } 1330 1331 /* 1332 * Save logical drive information. 1333 */ 1334 if (bootverbose) { 1335 ciss_printf(sc, "%d logical drive%s\n", 1336 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1337 } 1338 1339 sc->ciss_logical = 1340 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1341 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1342 if (sc->ciss_logical == NULL) { 1343 error = ENXIO; 1344 goto out; 1345 } 1346 1347 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1348 sc->ciss_logical[i] = 1349 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1350 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1351 if (sc->ciss_logical[i] == NULL) { 1352 error = ENXIO; 1353 goto out; 1354 } 1355 1356 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1357 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1358 } 1359 1360 1361 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1362 if (i < ndrives) { 1363 struct ciss_ldrive *ld; 1364 int bus, target; 1365 1366 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1367 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1368 ld = &sc->ciss_logical[bus][target]; 1369 1370 ld->cl_address = cll->lun[i]; 1371 ld->cl_controller = &sc->ciss_controllers[bus]; 1372 if (ciss_identify_logical(sc, ld) != 0) 1373 continue; 1374 /* 1375 * If the drive has had media exchanged, we should bring it online. 1376 */ 1377 if (ld->cl_lstatus->media_exchanged) 1378 ciss_accept_media(sc, ld); 1379 1380 } 1381 } 1382 1383 out: 1384 if (cll != NULL) 1385 free(cll, CISS_MALLOC_CLASS); 1386 return(error); 1387 } 1388 1389 static int 1390 ciss_init_physical(struct ciss_softc *sc) 1391 { 1392 struct ciss_lun_report *cll; 1393 int error = 0, i; 1394 int nphys; 1395 int bus, target; 1396 1397 debug_called(1); 1398 1399 bus = 0; 1400 target = 0; 1401 1402 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1403 CISS_MAX_PHYSICAL); 1404 if (cll == NULL) { 1405 error = ENXIO; 1406 goto out; 1407 } 1408 1409 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1410 1411 if (bootverbose) { 1412 ciss_printf(sc, "%d physical device%s\n", 1413 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1414 } 1415 1416 /* 1417 * Figure out the bus mapping. 1418 * Logical buses include both the local logical bus for local arrays and 1419 * proxy buses for remote arrays. Physical buses are numbered by the 1420 * controller and represent physical buses that hold physical devices. 1421 * We shift these bus numbers so that everything fits into a single flat 1422 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1423 * numbers, and the physical bus numbers are shifted to be above that. 1424 * This results in the various driver arrays being indexed as follows: 1425 * 1426 * ciss_controllers[] - indexed by logical bus 1427 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1428 * being shifted by 32. 1429 * ciss_logical[][] - indexed by logical bus 1430 * ciss_physical[][] - indexed by physical bus 1431 * 1432 * XXX This is getting more and more hackish. CISS really doesn't play 1433 * well with a standard SCSI model; devices are addressed via magic 1434 * cookies, not via b/t/l addresses. Since there is no way to store 1435 * the cookie in the CAM device object, we have to keep these lookup 1436 * tables handy so that the devices can be found quickly at the cost 1437 * of wasting memory and having a convoluted lookup scheme. This 1438 * driver should probably be converted to block interface. 1439 */ 1440 /* 1441 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1442 * controller. A proxy controller is another physical controller 1443 * behind the primary PCI controller. We need to know about this 1444 * so that BMIC commands can be properly targeted. There can be 1445 * proxy controllers attached to a single PCI controller, so 1446 * find the highest numbered one so the array can be properly 1447 * sized. 1448 */ 1449 sc->ciss_max_logical_bus = 1; 1450 for (i = 0; i < nphys; i++) { 1451 if (cll->lun[i].physical.extra_address == 0) { 1452 bus = cll->lun[i].physical.bus; 1453 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1454 } else { 1455 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1456 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1457 } 1458 } 1459 1460 sc->ciss_controllers = 1461 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1462 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1463 1464 if (sc->ciss_controllers == NULL) { 1465 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1466 error = ENOMEM; 1467 goto out; 1468 } 1469 1470 /* setup a map of controller addresses */ 1471 for (i = 0; i < nphys; i++) { 1472 if (cll->lun[i].physical.extra_address == 0) { 1473 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1474 } 1475 } 1476 1477 sc->ciss_physical = 1478 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1479 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1480 if (sc->ciss_physical == NULL) { 1481 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1482 error = ENOMEM; 1483 goto out; 1484 } 1485 1486 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1487 sc->ciss_physical[i] = 1488 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1489 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1490 if (sc->ciss_physical[i] == NULL) { 1491 ciss_printf(sc, "Could not allocate memory for target map\n"); 1492 error = ENOMEM; 1493 goto out; 1494 } 1495 } 1496 1497 ciss_filter_physical(sc, cll); 1498 1499 out: 1500 if (cll != NULL) 1501 free(cll, CISS_MALLOC_CLASS); 1502 1503 return(error); 1504 } 1505 1506 static int 1507 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1508 { 1509 u_int32_t ea; 1510 int i, nphys; 1511 int bus, target; 1512 1513 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1514 for (i = 0; i < nphys; i++) { 1515 if (cll->lun[i].physical.extra_address == 0) 1516 continue; 1517 1518 /* 1519 * Filter out devices that we don't want. Level 3 LUNs could 1520 * probably be supported, but the docs don't give enough of a 1521 * hint to know how. 1522 * 1523 * The mode field of the physical address is likely set to have 1524 * hard disks masked out. Honor it unless the user has overridden 1525 * us with the tunable. We also munge the inquiry data for these 1526 * disks so that they only show up as passthrough devices. Keeping 1527 * them visible in this fashion is useful for doing things like 1528 * flashing firmware. 1529 */ 1530 ea = cll->lun[i].physical.extra_address; 1531 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1532 (CISS_EXTRA_MODE2(ea) == 0x3)) 1533 continue; 1534 if ((ciss_expose_hidden_physical == 0) && 1535 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1536 continue; 1537 1538 /* 1539 * Note: CISS firmware numbers physical busses starting at '1', not 1540 * '0'. This numbering is internal to the firmware and is only 1541 * used as a hint here. 1542 */ 1543 bus = CISS_EXTRA_BUS2(ea) - 1; 1544 target = CISS_EXTRA_TARGET2(ea); 1545 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1546 sc->ciss_physical[bus][target].cp_online = 1; 1547 } 1548 1549 return (0); 1550 } 1551 1552 static int 1553 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1554 { 1555 struct ciss_request *cr; 1556 struct ciss_command *cc; 1557 struct scsi_inquiry *inq; 1558 int error; 1559 int command_status; 1560 1561 cr = NULL; 1562 1563 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1564 1565 if ((error = ciss_get_request(sc, &cr)) != 0) 1566 goto out; 1567 1568 cc = CISS_FIND_COMMAND(cr); 1569 cr->cr_data = &ld->cl_geometry; 1570 cr->cr_length = sizeof(ld->cl_geometry); 1571 cr->cr_flags = CISS_REQ_DATAIN; 1572 1573 cc->header.address = ld->cl_address; 1574 cc->cdb.cdb_length = 6; 1575 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1576 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1577 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1578 cc->cdb.timeout = 30; 1579 1580 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1581 inq->opcode = INQUIRY; 1582 inq->byte2 = SI_EVPD; 1583 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1584 inq->length = sizeof(ld->cl_geometry); 1585 1586 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1587 ciss_printf(sc, "error getting geometry (%d)\n", error); 1588 goto out; 1589 } 1590 1591 ciss_report_request(cr, &command_status, NULL); 1592 switch(command_status) { 1593 case CISS_CMD_STATUS_SUCCESS: 1594 case CISS_CMD_STATUS_DATA_UNDERRUN: 1595 break; 1596 case CISS_CMD_STATUS_DATA_OVERRUN: 1597 ciss_printf(sc, "WARNING: Data overrun\n"); 1598 break; 1599 default: 1600 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1601 ciss_name_command_status(command_status)); 1602 break; 1603 } 1604 1605 out: 1606 if (cr != NULL) 1607 ciss_release_request(cr); 1608 return(error); 1609 } 1610 /************************************************************************ 1611 * Identify a logical drive, initialise state related to it. 1612 */ 1613 static int 1614 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1615 { 1616 struct ciss_request *cr; 1617 struct ciss_command *cc; 1618 struct ciss_bmic_cdb *cbc; 1619 int error, command_status; 1620 1621 debug_called(1); 1622 1623 cr = NULL; 1624 1625 /* 1626 * Build a BMIC request to fetch the drive ID. 1627 */ 1628 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1629 (void **)&ld->cl_ldrive, 1630 sizeof(*ld->cl_ldrive))) != 0) 1631 goto out; 1632 cc = CISS_FIND_COMMAND(cr); 1633 cc->header.address = *ld->cl_controller; /* target controller */ 1634 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1635 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1636 1637 /* 1638 * Submit the request and wait for it to complete. 1639 */ 1640 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1641 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1642 goto out; 1643 } 1644 1645 /* 1646 * Check response. 1647 */ 1648 ciss_report_request(cr, &command_status, NULL); 1649 switch(command_status) { 1650 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1651 break; 1652 case CISS_CMD_STATUS_DATA_UNDERRUN: 1653 case CISS_CMD_STATUS_DATA_OVERRUN: 1654 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1655 default: 1656 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1657 ciss_name_command_status(command_status)); 1658 error = EIO; 1659 goto out; 1660 } 1661 ciss_release_request(cr); 1662 cr = NULL; 1663 1664 /* 1665 * Build a CISS BMIC command to get the logical drive status. 1666 */ 1667 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1668 goto out; 1669 1670 /* 1671 * Get the logical drive geometry. 1672 */ 1673 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1674 goto out; 1675 1676 /* 1677 * Print the drive's basic characteristics. 1678 */ 1679 if (bootverbose) { 1680 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1681 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1682 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1683 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1684 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1685 ld->cl_ldrive->block_size)); 1686 1687 ciss_print_ldrive(sc, ld); 1688 } 1689 out: 1690 if (error != 0) { 1691 /* make the drive not-exist */ 1692 ld->cl_status = CISS_LD_NONEXISTENT; 1693 if (ld->cl_ldrive != NULL) { 1694 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1695 ld->cl_ldrive = NULL; 1696 } 1697 if (ld->cl_lstatus != NULL) { 1698 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1699 ld->cl_lstatus = NULL; 1700 } 1701 } 1702 if (cr != NULL) 1703 ciss_release_request(cr); 1704 1705 return(error); 1706 } 1707 1708 /************************************************************************ 1709 * Get status for a logical drive. 1710 * 1711 * XXX should we also do this in response to Test Unit Ready? 1712 */ 1713 static int 1714 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1715 { 1716 struct ciss_request *cr; 1717 struct ciss_command *cc; 1718 struct ciss_bmic_cdb *cbc; 1719 int error, command_status; 1720 1721 /* 1722 * Build a CISS BMIC command to get the logical drive status. 1723 */ 1724 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1725 (void **)&ld->cl_lstatus, 1726 sizeof(*ld->cl_lstatus))) != 0) 1727 goto out; 1728 cc = CISS_FIND_COMMAND(cr); 1729 cc->header.address = *ld->cl_controller; /* target controller */ 1730 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1731 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1732 1733 /* 1734 * Submit the request and wait for it to complete. 1735 */ 1736 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1737 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1738 goto out; 1739 } 1740 1741 /* 1742 * Check response. 1743 */ 1744 ciss_report_request(cr, &command_status, NULL); 1745 switch(command_status) { 1746 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1747 break; 1748 case CISS_CMD_STATUS_DATA_UNDERRUN: 1749 case CISS_CMD_STATUS_DATA_OVERRUN: 1750 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1751 default: 1752 ciss_printf(sc, "error reading logical drive status (%s)\n", 1753 ciss_name_command_status(command_status)); 1754 error = EIO; 1755 goto out; 1756 } 1757 1758 /* 1759 * Set the drive's summary status based on the returned status. 1760 * 1761 * XXX testing shows that a failed JBOD drive comes back at next 1762 * boot in "queued for expansion" mode. WTF? 1763 */ 1764 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1765 1766 out: 1767 if (cr != NULL) 1768 ciss_release_request(cr); 1769 return(error); 1770 } 1771 1772 /************************************************************************ 1773 * Notify the adapter of a config update. 1774 */ 1775 static int 1776 ciss_update_config(struct ciss_softc *sc) 1777 { 1778 int i; 1779 1780 debug_called(1); 1781 1782 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1783 for (i = 0; i < 1000; i++) { 1784 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1785 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1786 return(0); 1787 } 1788 DELAY(1000); 1789 } 1790 return(1); 1791 } 1792 1793 /************************************************************************ 1794 * Accept new media into a logical drive. 1795 * 1796 * XXX The drive has previously been offline; it would be good if we 1797 * could make sure it's not open right now. 1798 */ 1799 static int 1800 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1801 { 1802 struct ciss_request *cr; 1803 struct ciss_command *cc; 1804 struct ciss_bmic_cdb *cbc; 1805 int command_status; 1806 int error = 0, ldrive; 1807 1808 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1809 1810 debug(0, "bringing logical drive %d back online"); 1811 1812 /* 1813 * Build a CISS BMIC command to bring the drive back online. 1814 */ 1815 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1816 NULL, 0)) != 0) 1817 goto out; 1818 cc = CISS_FIND_COMMAND(cr); 1819 cc->header.address = *ld->cl_controller; /* target controller */ 1820 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1821 cbc->log_drive = ldrive; 1822 1823 /* 1824 * Submit the request and wait for it to complete. 1825 */ 1826 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1827 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1828 goto out; 1829 } 1830 1831 /* 1832 * Check response. 1833 */ 1834 ciss_report_request(cr, &command_status, NULL); 1835 switch(command_status) { 1836 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1837 /* we should get a logical drive status changed event here */ 1838 break; 1839 default: 1840 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1841 ciss_name_command_status(command_status)); 1842 break; 1843 } 1844 1845 out: 1846 if (cr != NULL) 1847 ciss_release_request(cr); 1848 return(error); 1849 } 1850 1851 /************************************************************************ 1852 * Release adapter resources. 1853 */ 1854 static void 1855 ciss_free(struct ciss_softc *sc) 1856 { 1857 struct ciss_request *cr; 1858 int i, j; 1859 1860 debug_called(1); 1861 1862 /* we're going away */ 1863 sc->ciss_flags |= CISS_FLAG_ABORTING; 1864 1865 /* terminate the periodic heartbeat routine */ 1866 callout_stop(&sc->ciss_periodic); 1867 1868 /* cancel the Event Notify chain */ 1869 ciss_notify_abort(sc); 1870 1871 ciss_kill_notify_thread(sc); 1872 1873 /* disconnect from CAM */ 1874 if (sc->ciss_cam_sim) { 1875 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1876 if (sc->ciss_cam_sim[i]) { 1877 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1878 cam_sim_free(sc->ciss_cam_sim[i], 0); 1879 } 1880 } 1881 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1882 CISS_PHYSICAL_BASE; i++) { 1883 if (sc->ciss_cam_sim[i]) { 1884 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1885 cam_sim_free(sc->ciss_cam_sim[i], 0); 1886 } 1887 } 1888 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1889 } 1890 if (sc->ciss_cam_devq) 1891 cam_simq_free(sc->ciss_cam_devq); 1892 1893 /* remove the control device */ 1894 mtx_unlock(&sc->ciss_mtx); 1895 if (sc->ciss_dev_t != NULL) 1896 destroy_dev(sc->ciss_dev_t); 1897 1898 /* Final cleanup of the callout. */ 1899 callout_drain(&sc->ciss_periodic); 1900 mtx_destroy(&sc->ciss_mtx); 1901 1902 /* free the controller data */ 1903 if (sc->ciss_id != NULL) 1904 free(sc->ciss_id, CISS_MALLOC_CLASS); 1905 1906 /* release I/O resources */ 1907 if (sc->ciss_regs_resource != NULL) 1908 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1909 sc->ciss_regs_rid, sc->ciss_regs_resource); 1910 if (sc->ciss_cfg_resource != NULL) 1911 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1912 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1913 if (sc->ciss_intr != NULL) 1914 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1915 if (sc->ciss_irq_resource != NULL) 1916 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1917 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1918 if (sc->ciss_msi) 1919 pci_release_msi(sc->ciss_dev); 1920 1921 while ((cr = ciss_dequeue_free(sc)) != NULL) 1922 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1923 if (sc->ciss_buffer_dmat) 1924 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1925 1926 /* destroy command memory and DMA tag */ 1927 if (sc->ciss_command != NULL) { 1928 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1929 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1930 } 1931 if (sc->ciss_command_dmat) 1932 bus_dma_tag_destroy(sc->ciss_command_dmat); 1933 1934 if (sc->ciss_reply) { 1935 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1936 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1937 } 1938 if (sc->ciss_reply_dmat) 1939 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1940 1941 /* destroy DMA tags */ 1942 if (sc->ciss_parent_dmat) 1943 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1944 if (sc->ciss_logical) { 1945 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1946 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1947 if (sc->ciss_logical[i][j].cl_ldrive) 1948 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1949 if (sc->ciss_logical[i][j].cl_lstatus) 1950 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1951 } 1952 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1953 } 1954 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1955 } 1956 1957 if (sc->ciss_physical) { 1958 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1959 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1960 free(sc->ciss_physical, CISS_MALLOC_CLASS); 1961 } 1962 1963 if (sc->ciss_controllers) 1964 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 1965 1966 } 1967 1968 /************************************************************************ 1969 * Give a command to the adapter. 1970 * 1971 * Note that this uses the simple transport layer directly. If we 1972 * want to add support for other layers, we'll need a switch of some 1973 * sort. 1974 * 1975 * Note that the simple transport layer has no way of refusing a 1976 * command; we only have as many request structures as the adapter 1977 * supports commands, so we don't have to check (this presumes that 1978 * the adapter can handle commands as fast as we throw them at it). 1979 */ 1980 static int 1981 ciss_start(struct ciss_request *cr) 1982 { 1983 struct ciss_command *cc; /* XXX debugging only */ 1984 int error; 1985 1986 cc = CISS_FIND_COMMAND(cr); 1987 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 1988 1989 /* 1990 * Map the request's data. 1991 */ 1992 if ((error = ciss_map_request(cr))) 1993 return(error); 1994 1995 #if 0 1996 ciss_print_request(cr); 1997 #endif 1998 1999 return(0); 2000 } 2001 2002 /************************************************************************ 2003 * Fetch completed request(s) from the adapter, queue them for 2004 * completion handling. 2005 * 2006 * Note that this uses the simple transport layer directly. If we 2007 * want to add support for other layers, we'll need a switch of some 2008 * sort. 2009 * 2010 * Note that the simple transport mechanism does not require any 2011 * reentrancy protection; the OPQ read is atomic. If there is a 2012 * chance of a race with something else that might move the request 2013 * off the busy list, then we will have to lock against that 2014 * (eg. timeouts, etc.) 2015 */ 2016 static void 2017 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2018 { 2019 struct ciss_request *cr; 2020 struct ciss_command *cc; 2021 u_int32_t tag, index; 2022 2023 debug_called(3); 2024 2025 /* 2026 * Loop quickly taking requests from the adapter and moving them 2027 * to the completed queue. 2028 */ 2029 for (;;) { 2030 2031 /* see if the OPQ contains anything */ 2032 if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc)) 2033 break; 2034 2035 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2036 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2037 break; 2038 index = tag >> 2; 2039 debug(2, "completed command %d%s", index, 2040 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2041 if (index >= sc->ciss_max_requests) { 2042 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2043 continue; 2044 } 2045 cr = &(sc->ciss_request[index]); 2046 cc = CISS_FIND_COMMAND(cr); 2047 cc->header.host_tag = tag; /* not updated by adapter */ 2048 ciss_enqueue_complete(cr, qh); 2049 } 2050 2051 } 2052 2053 static void 2054 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2055 { 2056 struct ciss_request *cr; 2057 struct ciss_command *cc; 2058 u_int32_t tag, index; 2059 2060 debug_called(3); 2061 2062 /* 2063 * Loop quickly taking requests from the adapter and moving them 2064 * to the completed queue. 2065 */ 2066 for (;;) { 2067 tag = sc->ciss_reply[sc->ciss_rqidx]; 2068 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2069 break; 2070 index = tag >> 2; 2071 debug(2, "completed command %d%s\n", index, 2072 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2073 if (index < sc->ciss_max_requests) { 2074 cr = &(sc->ciss_request[index]); 2075 cc = CISS_FIND_COMMAND(cr); 2076 cc->header.host_tag = tag; /* not updated by adapter */ 2077 ciss_enqueue_complete(cr, qh); 2078 } else { 2079 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2080 } 2081 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2082 sc->ciss_rqidx = 0; 2083 sc->ciss_cycle ^= 1; 2084 } 2085 } 2086 2087 } 2088 2089 /************************************************************************ 2090 * Take an interrupt from the adapter. 2091 */ 2092 static void 2093 ciss_intr(void *arg) 2094 { 2095 cr_qhead_t qh; 2096 struct ciss_softc *sc = (struct ciss_softc *)arg; 2097 2098 /* 2099 * The only interrupt we recognise indicates that there are 2100 * entries in the outbound post queue. 2101 */ 2102 STAILQ_INIT(&qh); 2103 ciss_done(sc, &qh); 2104 mtx_lock(&sc->ciss_mtx); 2105 ciss_complete(sc, &qh); 2106 mtx_unlock(&sc->ciss_mtx); 2107 } 2108 2109 static void 2110 ciss_perf_intr(void *arg) 2111 { 2112 struct ciss_softc *sc = (struct ciss_softc *)arg; 2113 2114 /* Clear the interrupt and flush the bridges. Docs say that the flush 2115 * needs to be done twice, which doesn't seem right. 2116 */ 2117 CISS_TL_PERF_CLEAR_INT(sc); 2118 CISS_TL_PERF_FLUSH_INT(sc); 2119 2120 ciss_perf_msi_intr(sc); 2121 } 2122 2123 static void 2124 ciss_perf_msi_intr(void *arg) 2125 { 2126 cr_qhead_t qh; 2127 struct ciss_softc *sc = (struct ciss_softc *)arg; 2128 2129 STAILQ_INIT(&qh); 2130 ciss_perf_done(sc, &qh); 2131 mtx_lock(&sc->ciss_mtx); 2132 ciss_complete(sc, &qh); 2133 mtx_unlock(&sc->ciss_mtx); 2134 } 2135 2136 2137 /************************************************************************ 2138 * Process completed requests. 2139 * 2140 * Requests can be completed in three fashions: 2141 * 2142 * - by invoking a callback function (cr_complete is non-null) 2143 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2144 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2145 */ 2146 static void 2147 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2148 { 2149 struct ciss_request *cr; 2150 2151 debug_called(2); 2152 2153 /* 2154 * Loop taking requests off the completed queue and performing 2155 * completion processing on them. 2156 */ 2157 for (;;) { 2158 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2159 break; 2160 ciss_unmap_request(cr); 2161 2162 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2163 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2164 cr->cr_flags &= ~CISS_REQ_BUSY; 2165 2166 /* 2167 * If the request has a callback, invoke it. 2168 */ 2169 if (cr->cr_complete != NULL) { 2170 cr->cr_complete(cr); 2171 continue; 2172 } 2173 2174 /* 2175 * If someone is sleeping on this request, wake them up. 2176 */ 2177 if (cr->cr_flags & CISS_REQ_SLEEP) { 2178 cr->cr_flags &= ~CISS_REQ_SLEEP; 2179 wakeup(cr); 2180 continue; 2181 } 2182 2183 /* 2184 * If someone is polling this request for completion, signal. 2185 */ 2186 if (cr->cr_flags & CISS_REQ_POLL) { 2187 cr->cr_flags &= ~CISS_REQ_POLL; 2188 continue; 2189 } 2190 2191 /* 2192 * Give up and throw the request back on the free queue. This 2193 * should never happen; resources will probably be lost. 2194 */ 2195 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2196 ciss_enqueue_free(cr); 2197 } 2198 } 2199 2200 /************************************************************************ 2201 * Report on the completion status of a request, and pass back SCSI 2202 * and command status values. 2203 */ 2204 static int 2205 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2206 { 2207 struct ciss_command *cc; 2208 struct ciss_error_info *ce; 2209 2210 debug_called(2); 2211 2212 cc = CISS_FIND_COMMAND(cr); 2213 ce = (struct ciss_error_info *)&(cc->sg[0]); 2214 2215 /* 2216 * We don't consider data under/overrun an error for the Report 2217 * Logical/Physical LUNs commands. 2218 */ 2219 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2220 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2221 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2222 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2223 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2224 (cc->cdb.cdb[0] == INQUIRY))) { 2225 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2226 debug(2, "ignoring irrelevant under/overrun error"); 2227 } 2228 2229 /* 2230 * Check the command's error bit, if clear, there's no status and 2231 * everything is OK. 2232 */ 2233 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2234 if (scsi_status != NULL) 2235 *scsi_status = SCSI_STATUS_OK; 2236 if (command_status != NULL) 2237 *command_status = CISS_CMD_STATUS_SUCCESS; 2238 return(0); 2239 } else { 2240 if (command_status != NULL) 2241 *command_status = ce->command_status; 2242 if (scsi_status != NULL) { 2243 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2244 *scsi_status = ce->scsi_status; 2245 } else { 2246 *scsi_status = -1; 2247 } 2248 } 2249 if (bootverbose) 2250 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2251 ce->command_status, ciss_name_command_status(ce->command_status), 2252 ce->scsi_status); 2253 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2254 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2255 ce->additional_error_info.invalid_command.offense_size, 2256 ce->additional_error_info.invalid_command.offense_offset, 2257 ce->additional_error_info.invalid_command.offense_value, 2258 func); 2259 } 2260 } 2261 #if 0 2262 ciss_print_request(cr); 2263 #endif 2264 return(1); 2265 } 2266 2267 /************************************************************************ 2268 * Issue a request and don't return until it's completed. 2269 * 2270 * Depending on adapter status, we may poll or sleep waiting for 2271 * completion. 2272 */ 2273 static int 2274 ciss_synch_request(struct ciss_request *cr, int timeout) 2275 { 2276 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2277 return(ciss_wait_request(cr, timeout)); 2278 } else { 2279 return(ciss_poll_request(cr, timeout)); 2280 } 2281 } 2282 2283 /************************************************************************ 2284 * Issue a request and poll for completion. 2285 * 2286 * Timeout in milliseconds. 2287 */ 2288 static int 2289 ciss_poll_request(struct ciss_request *cr, int timeout) 2290 { 2291 cr_qhead_t qh; 2292 struct ciss_softc *sc; 2293 int error; 2294 2295 debug_called(2); 2296 2297 STAILQ_INIT(&qh); 2298 sc = cr->cr_sc; 2299 cr->cr_flags |= CISS_REQ_POLL; 2300 if ((error = ciss_start(cr)) != 0) 2301 return(error); 2302 2303 do { 2304 if (sc->ciss_perf) 2305 ciss_perf_done(sc, &qh); 2306 else 2307 ciss_done(sc, &qh); 2308 ciss_complete(sc, &qh); 2309 if (!(cr->cr_flags & CISS_REQ_POLL)) 2310 return(0); 2311 DELAY(1000); 2312 } while (timeout-- >= 0); 2313 return(EWOULDBLOCK); 2314 } 2315 2316 /************************************************************************ 2317 * Issue a request and sleep waiting for completion. 2318 * 2319 * Timeout in milliseconds. Note that a spurious wakeup will reset 2320 * the timeout. 2321 */ 2322 static int 2323 ciss_wait_request(struct ciss_request *cr, int timeout) 2324 { 2325 int error; 2326 2327 debug_called(2); 2328 2329 cr->cr_flags |= CISS_REQ_SLEEP; 2330 if ((error = ciss_start(cr)) != 0) 2331 return(error); 2332 2333 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2334 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2335 } 2336 return(error); 2337 } 2338 2339 #if 0 2340 /************************************************************************ 2341 * Abort a request. Note that a potential exists here to race the 2342 * request being completed; the caller must deal with this. 2343 */ 2344 static int 2345 ciss_abort_request(struct ciss_request *ar) 2346 { 2347 struct ciss_request *cr; 2348 struct ciss_command *cc; 2349 struct ciss_message_cdb *cmc; 2350 int error; 2351 2352 debug_called(1); 2353 2354 /* get a request */ 2355 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2356 return(error); 2357 2358 /* build the abort command */ 2359 cc = CISS_FIND_COMMAND(cr); 2360 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2361 cc->header.address.physical.target = 0; 2362 cc->header.address.physical.bus = 0; 2363 cc->cdb.cdb_length = sizeof(*cmc); 2364 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2365 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2366 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2367 cc->cdb.timeout = 30; 2368 2369 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2370 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2371 cmc->type = CISS_MESSAGE_ABORT_TASK; 2372 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2373 2374 /* 2375 * Send the request and wait for a response. If we believe we 2376 * aborted the request OK, clear the flag that indicates it's 2377 * running. 2378 */ 2379 error = ciss_synch_request(cr, 35 * 1000); 2380 if (!error) 2381 error = ciss_report_request(cr, NULL, NULL); 2382 ciss_release_request(cr); 2383 2384 return(error); 2385 } 2386 #endif 2387 2388 2389 /************************************************************************ 2390 * Fetch and initialise a request 2391 */ 2392 static int 2393 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2394 { 2395 struct ciss_request *cr; 2396 2397 debug_called(2); 2398 2399 /* 2400 * Get a request and clean it up. 2401 */ 2402 if ((cr = ciss_dequeue_free(sc)) == NULL) 2403 return(ENOMEM); 2404 2405 cr->cr_data = NULL; 2406 cr->cr_flags = 0; 2407 cr->cr_complete = NULL; 2408 cr->cr_private = NULL; 2409 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2410 2411 ciss_preen_command(cr); 2412 *crp = cr; 2413 return(0); 2414 } 2415 2416 static void 2417 ciss_preen_command(struct ciss_request *cr) 2418 { 2419 struct ciss_command *cc; 2420 u_int32_t cmdphys; 2421 2422 /* 2423 * Clean up the command structure. 2424 * 2425 * Note that we set up the error_info structure here, since the 2426 * length can be overwritten by any command. 2427 */ 2428 cc = CISS_FIND_COMMAND(cr); 2429 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2430 cc->header.sg_total = 0; 2431 cc->header.host_tag = cr->cr_tag << 2; 2432 cc->header.host_tag_zeroes = 0; 2433 cmdphys = CISS_FIND_COMMANDPHYS(cr); 2434 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2435 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2436 } 2437 2438 /************************************************************************ 2439 * Release a request to the free list. 2440 */ 2441 static void 2442 ciss_release_request(struct ciss_request *cr) 2443 { 2444 struct ciss_softc *sc; 2445 2446 debug_called(2); 2447 2448 sc = cr->cr_sc; 2449 2450 /* release the request to the free queue */ 2451 ciss_requeue_free(cr); 2452 } 2453 2454 /************************************************************************ 2455 * Allocate a request that will be used to send a BMIC command. Do some 2456 * of the common setup here to avoid duplicating it everywhere else. 2457 */ 2458 static int 2459 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2460 int opcode, void **bufp, size_t bufsize) 2461 { 2462 struct ciss_request *cr; 2463 struct ciss_command *cc; 2464 struct ciss_bmic_cdb *cbc; 2465 void *buf; 2466 int error; 2467 int dataout; 2468 2469 debug_called(2); 2470 2471 cr = NULL; 2472 buf = NULL; 2473 2474 /* 2475 * Get a request. 2476 */ 2477 if ((error = ciss_get_request(sc, &cr)) != 0) 2478 goto out; 2479 2480 /* 2481 * Allocate data storage if requested, determine the data direction. 2482 */ 2483 dataout = 0; 2484 if ((bufsize > 0) && (bufp != NULL)) { 2485 if (*bufp == NULL) { 2486 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2487 error = ENOMEM; 2488 goto out; 2489 } 2490 } else { 2491 buf = *bufp; 2492 dataout = 1; /* we are given a buffer, so we are writing */ 2493 } 2494 } 2495 2496 /* 2497 * Build a CISS BMIC command to get the logical drive ID. 2498 */ 2499 cr->cr_data = buf; 2500 cr->cr_length = bufsize; 2501 if (!dataout) 2502 cr->cr_flags = CISS_REQ_DATAIN; 2503 2504 cc = CISS_FIND_COMMAND(cr); 2505 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2506 cc->header.address.physical.bus = 0; 2507 cc->header.address.physical.target = 0; 2508 cc->cdb.cdb_length = sizeof(*cbc); 2509 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2510 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2511 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2512 cc->cdb.timeout = 0; 2513 2514 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2515 bzero(cbc, sizeof(*cbc)); 2516 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2517 cbc->bmic_opcode = opcode; 2518 cbc->size = htons((u_int16_t)bufsize); 2519 2520 out: 2521 if (error) { 2522 if (cr != NULL) 2523 ciss_release_request(cr); 2524 } else { 2525 *crp = cr; 2526 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2527 *bufp = buf; 2528 } 2529 return(error); 2530 } 2531 2532 /************************************************************************ 2533 * Handle a command passed in from userspace. 2534 */ 2535 static int 2536 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2537 { 2538 struct ciss_request *cr; 2539 struct ciss_command *cc; 2540 struct ciss_error_info *ce; 2541 int error = 0; 2542 2543 debug_called(1); 2544 2545 cr = NULL; 2546 2547 /* 2548 * Get a request. 2549 */ 2550 while (ciss_get_request(sc, &cr) != 0) 2551 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2552 cc = CISS_FIND_COMMAND(cr); 2553 2554 /* 2555 * Allocate an in-kernel databuffer if required, copy in user data. 2556 */ 2557 cr->cr_length = ioc->buf_size; 2558 if (ioc->buf_size > 0) { 2559 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2560 error = ENOMEM; 2561 goto out; 2562 } 2563 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2564 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2565 goto out; 2566 } 2567 } 2568 2569 /* 2570 * Build the request based on the user command. 2571 */ 2572 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2573 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2574 2575 /* XXX anything else to populate here? */ 2576 2577 /* 2578 * Run the command. 2579 */ 2580 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2581 debug(0, "request failed - %d", error); 2582 goto out; 2583 } 2584 2585 /* 2586 * Check to see if the command succeeded. 2587 */ 2588 ce = (struct ciss_error_info *)&(cc->sg[0]); 2589 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2590 bzero(ce, sizeof(*ce)); 2591 2592 /* 2593 * Copy the results back to the user. 2594 */ 2595 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2596 if ((ioc->buf_size > 0) && 2597 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2598 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2599 goto out; 2600 } 2601 2602 /* done OK */ 2603 error = 0; 2604 2605 out: 2606 if ((cr != NULL) && (cr->cr_data != NULL)) 2607 free(cr->cr_data, CISS_MALLOC_CLASS); 2608 if (cr != NULL) 2609 ciss_release_request(cr); 2610 return(error); 2611 } 2612 2613 /************************************************************************ 2614 * Map a request into bus-visible space, initialise the scatter/gather 2615 * list. 2616 */ 2617 static int 2618 ciss_map_request(struct ciss_request *cr) 2619 { 2620 struct ciss_softc *sc; 2621 int error = 0; 2622 2623 debug_called(2); 2624 2625 sc = cr->cr_sc; 2626 2627 /* check that mapping is necessary */ 2628 if (cr->cr_flags & CISS_REQ_MAPPED) 2629 return(0); 2630 2631 cr->cr_flags |= CISS_REQ_MAPPED; 2632 2633 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2634 BUS_DMASYNC_PREWRITE); 2635 2636 if (cr->cr_data != NULL) { 2637 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2638 cr->cr_data, cr->cr_length, 2639 ciss_request_map_helper, cr, 0); 2640 if (error != 0) 2641 return (error); 2642 } else { 2643 /* 2644 * Post the command to the adapter. 2645 */ 2646 cr->cr_sg_tag = CISS_SG_NONE; 2647 cr->cr_flags |= CISS_REQ_BUSY; 2648 if (sc->ciss_perf) 2649 CISS_TL_PERF_POST_CMD(sc, cr); 2650 else 2651 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2652 } 2653 2654 return(0); 2655 } 2656 2657 static void 2658 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2659 { 2660 struct ciss_command *cc; 2661 struct ciss_request *cr; 2662 struct ciss_softc *sc; 2663 int i; 2664 2665 debug_called(2); 2666 2667 cr = (struct ciss_request *)arg; 2668 sc = cr->cr_sc; 2669 cc = CISS_FIND_COMMAND(cr); 2670 2671 for (i = 0; i < nseg; i++) { 2672 cc->sg[i].address = segs[i].ds_addr; 2673 cc->sg[i].length = segs[i].ds_len; 2674 cc->sg[i].extension = 0; 2675 } 2676 /* we leave the s/g table entirely within the command */ 2677 cc->header.sg_in_list = nseg; 2678 cc->header.sg_total = nseg; 2679 2680 if (cr->cr_flags & CISS_REQ_DATAIN) 2681 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2682 if (cr->cr_flags & CISS_REQ_DATAOUT) 2683 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2684 2685 if (nseg == 1) 2686 cr->cr_sg_tag = CISS_SG_NONE; 2687 else if (nseg == 1) 2688 cr->cr_sg_tag = CISS_SG_1; 2689 else if (nseg == 2) 2690 cr->cr_sg_tag = CISS_SG_2; 2691 else if (nseg <= 4) 2692 cr->cr_sg_tag = CISS_SG_4; 2693 else if (nseg <= 8) 2694 cr->cr_sg_tag = CISS_SG_8; 2695 else if (nseg <= 16) 2696 cr->cr_sg_tag = CISS_SG_16; 2697 else if (nseg <= 32) 2698 cr->cr_sg_tag = CISS_SG_32; 2699 else 2700 cr->cr_sg_tag = CISS_SG_MAX; 2701 2702 /* 2703 * Post the command to the adapter. 2704 */ 2705 cr->cr_flags |= CISS_REQ_BUSY; 2706 if (sc->ciss_perf) 2707 CISS_TL_PERF_POST_CMD(sc, cr); 2708 else 2709 CISS_TL_SIMPLE_POST_CMD(sc, CISS_FIND_COMMANDPHYS(cr)); 2710 } 2711 2712 /************************************************************************ 2713 * Unmap a request from bus-visible space. 2714 */ 2715 static void 2716 ciss_unmap_request(struct ciss_request *cr) 2717 { 2718 struct ciss_softc *sc; 2719 2720 debug_called(2); 2721 2722 sc = cr->cr_sc; 2723 2724 /* check that unmapping is necessary */ 2725 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2726 return; 2727 2728 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2729 BUS_DMASYNC_POSTWRITE); 2730 2731 if (cr->cr_data == NULL) 2732 goto out; 2733 2734 if (cr->cr_flags & CISS_REQ_DATAIN) 2735 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2736 if (cr->cr_flags & CISS_REQ_DATAOUT) 2737 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2738 2739 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2740 out: 2741 cr->cr_flags &= ~CISS_REQ_MAPPED; 2742 } 2743 2744 /************************************************************************ 2745 * Attach the driver to CAM. 2746 * 2747 * We put all the logical drives on a single SCSI bus. 2748 */ 2749 static int 2750 ciss_cam_init(struct ciss_softc *sc) 2751 { 2752 int i, maxbus; 2753 2754 debug_called(1); 2755 2756 /* 2757 * Allocate a devq. We can reuse this for the masked physical 2758 * devices if we decide to export these as well. 2759 */ 2760 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) { 2761 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2762 return(ENOMEM); 2763 } 2764 2765 /* 2766 * Create a SIM. 2767 * 2768 * This naturally wastes a bit of memory. The alternative is to allocate 2769 * and register each bus as it is found, and then track them on a linked 2770 * list. Unfortunately, the driver has a few places where it needs to 2771 * look up the SIM based solely on bus number, and it's unclear whether 2772 * a list traversal would work for these situations. 2773 */ 2774 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2775 CISS_PHYSICAL_BASE); 2776 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2777 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2778 if (sc->ciss_cam_sim == NULL) { 2779 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2780 return(ENOMEM); 2781 } 2782 2783 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2784 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2785 "ciss", sc, 2786 device_get_unit(sc->ciss_dev), 2787 &sc->ciss_mtx, 2788 2, 2789 sc->ciss_max_requests - 2, 2790 sc->ciss_cam_devq)) == NULL) { 2791 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2792 return(ENOMEM); 2793 } 2794 2795 /* 2796 * Register bus with this SIM. 2797 */ 2798 mtx_lock(&sc->ciss_mtx); 2799 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2800 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2801 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2802 mtx_unlock(&sc->ciss_mtx); 2803 return (ENXIO); 2804 } 2805 } 2806 mtx_unlock(&sc->ciss_mtx); 2807 } 2808 2809 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2810 CISS_PHYSICAL_BASE; i++) { 2811 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2812 "ciss", sc, 2813 device_get_unit(sc->ciss_dev), 2814 &sc->ciss_mtx, 1, 2815 sc->ciss_max_requests - 2, 2816 sc->ciss_cam_devq)) == NULL) { 2817 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2818 return (ENOMEM); 2819 } 2820 2821 mtx_lock(&sc->ciss_mtx); 2822 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2823 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2824 mtx_unlock(&sc->ciss_mtx); 2825 return (ENXIO); 2826 } 2827 mtx_unlock(&sc->ciss_mtx); 2828 } 2829 2830 /* 2831 * Initiate a rescan of the bus. 2832 */ 2833 mtx_lock(&sc->ciss_mtx); 2834 ciss_cam_rescan_all(sc); 2835 mtx_unlock(&sc->ciss_mtx); 2836 2837 return(0); 2838 } 2839 2840 /************************************************************************ 2841 * Initiate a rescan of the 'logical devices' SIM 2842 */ 2843 static void 2844 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2845 { 2846 struct cam_path *path; 2847 union ccb *ccb; 2848 2849 debug_called(1); 2850 2851 if ((ccb = malloc(sizeof(union ccb), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2852 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2853 return; 2854 } 2855 2856 if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->ciss_cam_sim[bus]), 2857 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2858 ciss_printf(sc, "rescan failed (can't create path)\n"); 2859 free(ccb, CISS_MALLOC_CLASS); 2860 return; 2861 } 2862 2863 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 2864 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2865 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2866 ccb->crcn.flags = CAM_FLAG_NONE; 2867 xpt_action(ccb); 2868 2869 /* scan is now in progress */ 2870 } 2871 2872 static void 2873 ciss_cam_rescan_all(struct ciss_softc *sc) 2874 { 2875 int i; 2876 2877 /* Rescan the logical buses */ 2878 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2879 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2880 /* Rescan the physical buses */ 2881 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2882 CISS_PHYSICAL_BASE; i++) 2883 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2884 } 2885 2886 static void 2887 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2888 { 2889 xpt_free_path(ccb->ccb_h.path); 2890 free(ccb, CISS_MALLOC_CLASS); 2891 } 2892 2893 /************************************************************************ 2894 * Handle requests coming from CAM 2895 */ 2896 static void 2897 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2898 { 2899 struct ciss_softc *sc; 2900 struct ccb_scsiio *csio; 2901 int bus, target; 2902 int physical; 2903 2904 sc = cam_sim_softc(sim); 2905 bus = cam_sim_bus(sim); 2906 csio = (struct ccb_scsiio *)&ccb->csio; 2907 target = csio->ccb_h.target_id; 2908 physical = CISS_IS_PHYSICAL(bus); 2909 2910 switch (ccb->ccb_h.func_code) { 2911 2912 /* perform SCSI I/O */ 2913 case XPT_SCSI_IO: 2914 if (!ciss_cam_action_io(sim, csio)) 2915 return; 2916 break; 2917 2918 /* perform geometry calculations */ 2919 case XPT_CALC_GEOMETRY: 2920 { 2921 struct ccb_calc_geometry *ccg = &ccb->ccg; 2922 struct ciss_ldrive *ld; 2923 2924 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2925 2926 ld = NULL; 2927 if (!physical) 2928 ld = &sc->ciss_logical[bus][target]; 2929 2930 /* 2931 * Use the cached geometry settings unless the fault tolerance 2932 * is invalid. 2933 */ 2934 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2935 u_int32_t secs_per_cylinder; 2936 2937 ccg->heads = 255; 2938 ccg->secs_per_track = 32; 2939 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2940 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2941 } else { 2942 ccg->heads = ld->cl_geometry.heads; 2943 ccg->secs_per_track = ld->cl_geometry.sectors; 2944 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2945 } 2946 ccb->ccb_h.status = CAM_REQ_CMP; 2947 break; 2948 } 2949 2950 /* handle path attribute inquiry */ 2951 case XPT_PATH_INQ: 2952 { 2953 struct ccb_pathinq *cpi = &ccb->cpi; 2954 2955 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2956 2957 cpi->version_num = 1; 2958 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2959 cpi->target_sprt = 0; 2960 cpi->hba_misc = 0; 2961 cpi->max_target = CISS_MAX_LOGICAL; 2962 cpi->max_lun = 0; /* 'logical drive' channel only */ 2963 cpi->initiator_id = CISS_MAX_LOGICAL; 2964 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2965 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2966 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2967 cpi->unit_number = cam_sim_unit(sim); 2968 cpi->bus_id = cam_sim_bus(sim); 2969 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2970 cpi->transport = XPORT_SPI; 2971 cpi->transport_version = 2; 2972 cpi->protocol = PROTO_SCSI; 2973 cpi->protocol_version = SCSI_REV_2; 2974 ccb->ccb_h.status = CAM_REQ_CMP; 2975 break; 2976 } 2977 2978 case XPT_GET_TRAN_SETTINGS: 2979 { 2980 struct ccb_trans_settings *cts = &ccb->cts; 2981 int bus, target; 2982 struct ccb_trans_settings_spi *spi = 2983 &cts->xport_specific.spi; 2984 2985 bus = cam_sim_bus(sim); 2986 target = cts->ccb_h.target_id; 2987 2988 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2989 /* disconnect always OK */ 2990 cts->protocol = PROTO_SCSI; 2991 cts->protocol_version = SCSI_REV_2; 2992 cts->transport = XPORT_SPI; 2993 cts->transport_version = 2; 2994 2995 spi->valid = CTS_SPI_VALID_DISC; 2996 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2997 2998 cts->ccb_h.status = CAM_REQ_CMP; 2999 break; 3000 } 3001 3002 default: /* we can't do this */ 3003 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3004 ccb->ccb_h.status = CAM_REQ_INVALID; 3005 break; 3006 } 3007 3008 xpt_done(ccb); 3009 } 3010 3011 /************************************************************************ 3012 * Handle a CAM SCSI I/O request. 3013 */ 3014 static int 3015 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3016 { 3017 struct ciss_softc *sc; 3018 int bus, target; 3019 struct ciss_request *cr; 3020 struct ciss_command *cc; 3021 int error; 3022 3023 sc = cam_sim_softc(sim); 3024 bus = cam_sim_bus(sim); 3025 target = csio->ccb_h.target_id; 3026 3027 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3028 3029 /* check that the CDB pointer is not to a physical address */ 3030 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3031 debug(3, " CDB pointer is to physical address"); 3032 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3033 } 3034 3035 /* if there is data transfer, it must be to/from a virtual address */ 3036 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3037 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3038 debug(3, " data pointer is to physical address"); 3039 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3040 } 3041 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3042 debug(3, " data has premature s/g setup"); 3043 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3044 } 3045 } 3046 3047 /* abandon aborted ccbs or those that have failed validation */ 3048 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3049 debug(3, "abandoning CCB due to abort/validation failure"); 3050 return(EINVAL); 3051 } 3052 3053 /* handle emulation of some SCSI commands ourself */ 3054 if (ciss_cam_emulate(sc, csio)) 3055 return(0); 3056 3057 /* 3058 * Get a request to manage this command. If we can't, return the 3059 * ccb, freeze the queue and flag so that we unfreeze it when a 3060 * request completes. 3061 */ 3062 if ((error = ciss_get_request(sc, &cr)) != 0) { 3063 xpt_freeze_simq(sim, 1); 3064 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3065 return(error); 3066 } 3067 3068 /* 3069 * Build the command. 3070 */ 3071 cc = CISS_FIND_COMMAND(cr); 3072 cr->cr_data = csio->data_ptr; 3073 cr->cr_length = csio->dxfer_len; 3074 cr->cr_complete = ciss_cam_complete; 3075 cr->cr_private = csio; 3076 3077 /* 3078 * Target the right logical volume. 3079 */ 3080 if (CISS_IS_PHYSICAL(bus)) 3081 cc->header.address = 3082 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3083 else 3084 cc->header.address = 3085 sc->ciss_logical[bus][target].cl_address; 3086 cc->cdb.cdb_length = csio->cdb_len; 3087 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3088 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3089 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3090 cr->cr_flags = CISS_REQ_DATAOUT; 3091 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3092 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3093 cr->cr_flags = CISS_REQ_DATAIN; 3094 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3095 } else { 3096 cr->cr_flags = 0; 3097 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3098 } 3099 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3100 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3101 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3102 } else { 3103 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3104 } 3105 3106 /* 3107 * Submit the request to the adapter. 3108 * 3109 * Note that this may fail if we're unable to map the request (and 3110 * if we ever learn a transport layer other than simple, may fail 3111 * if the adapter rejects the command). 3112 */ 3113 if ((error = ciss_start(cr)) != 0) { 3114 xpt_freeze_simq(sim, 1); 3115 if (error == EINPROGRESS) { 3116 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3117 error = 0; 3118 } else { 3119 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3120 ciss_release_request(cr); 3121 } 3122 return(error); 3123 } 3124 3125 return(0); 3126 } 3127 3128 /************************************************************************ 3129 * Emulate SCSI commands the adapter doesn't handle as we might like. 3130 */ 3131 static int 3132 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3133 { 3134 int bus, target; 3135 u_int8_t opcode; 3136 3137 target = csio->ccb_h.target_id; 3138 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3139 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3140 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3141 3142 if (CISS_IS_PHYSICAL(bus)) { 3143 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3144 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3145 xpt_done((union ccb *)csio); 3146 return(1); 3147 } else 3148 return(0); 3149 } 3150 3151 /* 3152 * Handle requests for volumes that don't exist or are not online. 3153 * A selection timeout is slightly better than an illegal request. 3154 * Other errors might be better. 3155 */ 3156 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3157 csio->ccb_h.status = CAM_SEL_TIMEOUT; 3158 xpt_done((union ccb *)csio); 3159 return(1); 3160 } 3161 3162 /* if we have to fake Synchronise Cache */ 3163 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3164 /* 3165 * If this is a Synchronise Cache command, typically issued when 3166 * a device is closed, flush the adapter and complete now. 3167 */ 3168 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3169 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3170 ciss_flush_adapter(sc); 3171 csio->ccb_h.status = CAM_REQ_CMP; 3172 xpt_done((union ccb *)csio); 3173 return(1); 3174 } 3175 } 3176 3177 return(0); 3178 } 3179 3180 /************************************************************************ 3181 * Check for possibly-completed commands. 3182 */ 3183 static void 3184 ciss_cam_poll(struct cam_sim *sim) 3185 { 3186 cr_qhead_t qh; 3187 struct ciss_softc *sc = cam_sim_softc(sim); 3188 3189 debug_called(2); 3190 3191 STAILQ_INIT(&qh); 3192 if (sc->ciss_perf) 3193 ciss_perf_done(sc, &qh); 3194 else 3195 ciss_done(sc, &qh); 3196 ciss_complete(sc, &qh); 3197 } 3198 3199 /************************************************************************ 3200 * Handle completion of a command - pass results back through the CCB 3201 */ 3202 static void 3203 ciss_cam_complete(struct ciss_request *cr) 3204 { 3205 struct ciss_softc *sc; 3206 struct ciss_command *cc; 3207 struct ciss_error_info *ce; 3208 struct ccb_scsiio *csio; 3209 int scsi_status; 3210 int command_status; 3211 3212 debug_called(2); 3213 3214 sc = cr->cr_sc; 3215 cc = CISS_FIND_COMMAND(cr); 3216 ce = (struct ciss_error_info *)&(cc->sg[0]); 3217 csio = (struct ccb_scsiio *)cr->cr_private; 3218 3219 /* 3220 * Extract status values from request. 3221 */ 3222 ciss_report_request(cr, &command_status, &scsi_status); 3223 csio->scsi_status = scsi_status; 3224 3225 /* 3226 * Handle specific SCSI status values. 3227 */ 3228 switch(scsi_status) { 3229 /* no status due to adapter error */ 3230 case -1: 3231 debug(0, "adapter error"); 3232 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3233 break; 3234 3235 /* no status due to command completed OK */ 3236 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3237 debug(2, "SCSI_STATUS_OK"); 3238 csio->ccb_h.status = CAM_REQ_CMP; 3239 break; 3240 3241 /* check condition, sense data included */ 3242 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3243 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3244 ce->sense_length, ce->residual_count); 3245 bzero(&csio->sense_data, SSD_FULL_SIZE); 3246 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3247 csio->sense_len = ce->sense_length; 3248 csio->resid = ce->residual_count; 3249 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3250 #ifdef CISS_DEBUG 3251 { 3252 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3253 debug(0, "sense key %x", sns->flags & SSD_KEY); 3254 } 3255 #endif 3256 break; 3257 3258 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3259 debug(0, "SCSI_STATUS_BUSY"); 3260 csio->ccb_h.status = CAM_SCSI_BUSY; 3261 break; 3262 3263 default: 3264 debug(0, "unknown status 0x%x", csio->scsi_status); 3265 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3266 break; 3267 } 3268 3269 /* handle post-command fixup */ 3270 ciss_cam_complete_fixup(sc, csio); 3271 3272 /* tell CAM we're ready for more commands */ 3273 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3274 3275 ciss_release_request(cr); 3276 xpt_done((union ccb *)csio); 3277 } 3278 3279 /******************************************************************************** 3280 * Fix up the result of some commands here. 3281 */ 3282 static void 3283 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3284 { 3285 struct scsi_inquiry_data *inq; 3286 struct ciss_ldrive *cl; 3287 int bus, target; 3288 3289 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3290 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) { 3291 3292 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3293 target = csio->ccb_h.target_id; 3294 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3295 3296 /* 3297 * Don't let hard drives be seen by the DA driver. They will still be 3298 * attached by the PASS driver. 3299 */ 3300 if (CISS_IS_PHYSICAL(bus)) { 3301 if (SID_TYPE(inq) == T_DIRECT) 3302 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3303 return; 3304 } 3305 3306 cl = &sc->ciss_logical[bus][target]; 3307 3308 padstr(inq->vendor, "COMPAQ", 8); 3309 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3310 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3311 } 3312 } 3313 3314 3315 /******************************************************************************** 3316 * Find a peripheral attached at (target) 3317 */ 3318 static struct cam_periph * 3319 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3320 { 3321 struct cam_periph *periph; 3322 struct cam_path *path; 3323 int status; 3324 3325 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3326 target, 0); 3327 if (status == CAM_REQ_CMP) { 3328 periph = cam_periph_find(path, NULL); 3329 xpt_free_path(path); 3330 } else { 3331 periph = NULL; 3332 } 3333 return(periph); 3334 } 3335 3336 /******************************************************************************** 3337 * Name the device at (target) 3338 * 3339 * XXX is this strictly correct? 3340 */ 3341 static int 3342 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3343 { 3344 struct cam_periph *periph; 3345 3346 if (CISS_IS_PHYSICAL(bus)) 3347 return (0); 3348 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3349 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3350 periph->periph_name, periph->unit_number); 3351 return(0); 3352 } 3353 sc->ciss_logical[bus][target].cl_name[0] = 0; 3354 return(ENOENT); 3355 } 3356 3357 /************************************************************************ 3358 * Periodic status monitoring. 3359 */ 3360 static void 3361 ciss_periodic(void *arg) 3362 { 3363 struct ciss_softc *sc; 3364 struct ciss_request *cr = NULL; 3365 struct ciss_command *cc = NULL; 3366 int error = 0; 3367 3368 debug_called(1); 3369 3370 sc = (struct ciss_softc *)arg; 3371 3372 /* 3373 * Check the adapter heartbeat. 3374 */ 3375 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3376 sc->ciss_heart_attack++; 3377 debug(0, "adapter heart attack in progress 0x%x/%d", 3378 sc->ciss_heartbeat, sc->ciss_heart_attack); 3379 if (sc->ciss_heart_attack == 3) { 3380 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3381 ciss_disable_adapter(sc); 3382 return; 3383 } 3384 } else { 3385 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3386 sc->ciss_heart_attack = 0; 3387 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3388 } 3389 3390 /* 3391 * Send the NOP message and wait for a response. 3392 */ 3393 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3394 cc = CISS_FIND_COMMAND(cr); 3395 cr->cr_complete = ciss_nop_complete; 3396 cc->cdb.cdb_length = 1; 3397 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3398 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3399 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3400 cc->cdb.timeout = 0; 3401 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3402 3403 if ((error = ciss_start(cr)) != 0) { 3404 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3405 } 3406 } 3407 3408 /* 3409 * If the notify event request has died for some reason, or has 3410 * not started yet, restart it. 3411 */ 3412 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3413 debug(0, "(re)starting Event Notify chain"); 3414 ciss_notify_event(sc); 3415 } 3416 3417 /* 3418 * Reschedule. 3419 */ 3420 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3421 } 3422 3423 static void 3424 ciss_nop_complete(struct ciss_request *cr) 3425 { 3426 struct ciss_softc *sc; 3427 static int first_time = 1; 3428 3429 sc = cr->cr_sc; 3430 if (ciss_report_request(cr, NULL, NULL) != 0) { 3431 if (first_time == 1) { 3432 first_time = 0; 3433 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3434 } 3435 } 3436 3437 ciss_release_request(cr); 3438 } 3439 3440 /************************************************************************ 3441 * Disable the adapter. 3442 * 3443 * The all requests in completed queue is failed with hardware error. 3444 * This will cause failover in a multipath configuration. 3445 */ 3446 static void 3447 ciss_disable_adapter(struct ciss_softc *sc) 3448 { 3449 cr_qhead_t qh; 3450 struct ciss_request *cr; 3451 struct ciss_command *cc; 3452 struct ciss_error_info *ce; 3453 int i; 3454 3455 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3456 pci_disable_busmaster(sc->ciss_dev); 3457 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3458 3459 for (i = 1; i < sc->ciss_max_requests; i++) { 3460 cr = &sc->ciss_request[i]; 3461 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3462 continue; 3463 3464 cc = CISS_FIND_COMMAND(cr); 3465 ce = (struct ciss_error_info *)&(cc->sg[0]); 3466 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3467 ciss_enqueue_complete(cr, &qh); 3468 } 3469 3470 for (;;) { 3471 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3472 break; 3473 3474 /* 3475 * If the request has a callback, invoke it. 3476 */ 3477 if (cr->cr_complete != NULL) { 3478 cr->cr_complete(cr); 3479 continue; 3480 } 3481 3482 /* 3483 * If someone is sleeping on this request, wake them up. 3484 */ 3485 if (cr->cr_flags & CISS_REQ_SLEEP) { 3486 cr->cr_flags &= ~CISS_REQ_SLEEP; 3487 wakeup(cr); 3488 continue; 3489 } 3490 } 3491 } 3492 3493 /************************************************************************ 3494 * Request a notification response from the adapter. 3495 * 3496 * If (cr) is NULL, this is the first request of the adapter, so 3497 * reset the adapter's message pointer and start with the oldest 3498 * message available. 3499 */ 3500 static void 3501 ciss_notify_event(struct ciss_softc *sc) 3502 { 3503 struct ciss_request *cr; 3504 struct ciss_command *cc; 3505 struct ciss_notify_cdb *cnc; 3506 int error; 3507 3508 debug_called(1); 3509 3510 cr = sc->ciss_periodic_notify; 3511 3512 /* get a request if we don't already have one */ 3513 if (cr == NULL) { 3514 if ((error = ciss_get_request(sc, &cr)) != 0) { 3515 debug(0, "can't get notify event request"); 3516 goto out; 3517 } 3518 sc->ciss_periodic_notify = cr; 3519 cr->cr_complete = ciss_notify_complete; 3520 debug(1, "acquired request %d", cr->cr_tag); 3521 } 3522 3523 /* 3524 * Get a databuffer if we don't already have one, note that the 3525 * adapter command wants a larger buffer than the actual 3526 * structure. 3527 */ 3528 if (cr->cr_data == NULL) { 3529 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3530 debug(0, "can't get notify event request buffer"); 3531 error = ENOMEM; 3532 goto out; 3533 } 3534 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3535 } 3536 3537 /* re-setup the request's command (since we never release it) XXX overkill*/ 3538 ciss_preen_command(cr); 3539 3540 /* (re)build the notify event command */ 3541 cc = CISS_FIND_COMMAND(cr); 3542 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3543 cc->header.address.physical.bus = 0; 3544 cc->header.address.physical.target = 0; 3545 3546 cc->cdb.cdb_length = sizeof(*cnc); 3547 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3548 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3549 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3550 cc->cdb.timeout = 0; /* no timeout, we hope */ 3551 3552 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3553 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3554 cnc->opcode = CISS_OPCODE_READ; 3555 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3556 cnc->timeout = 0; /* no timeout, we hope */ 3557 cnc->synchronous = 0; 3558 cnc->ordered = 0; 3559 cnc->seek_to_oldest = 0; 3560 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3561 cnc->new_only = 1; 3562 else 3563 cnc->new_only = 0; 3564 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3565 3566 /* submit the request */ 3567 error = ciss_start(cr); 3568 3569 out: 3570 if (error) { 3571 if (cr != NULL) { 3572 if (cr->cr_data != NULL) 3573 free(cr->cr_data, CISS_MALLOC_CLASS); 3574 ciss_release_request(cr); 3575 } 3576 sc->ciss_periodic_notify = NULL; 3577 debug(0, "can't submit notify event request"); 3578 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3579 } else { 3580 debug(1, "notify event submitted"); 3581 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3582 } 3583 } 3584 3585 static void 3586 ciss_notify_complete(struct ciss_request *cr) 3587 { 3588 struct ciss_command *cc; 3589 struct ciss_notify *cn; 3590 struct ciss_softc *sc; 3591 int scsi_status; 3592 int command_status; 3593 debug_called(1); 3594 3595 cc = CISS_FIND_COMMAND(cr); 3596 cn = (struct ciss_notify *)cr->cr_data; 3597 sc = cr->cr_sc; 3598 3599 /* 3600 * Report request results, decode status. 3601 */ 3602 ciss_report_request(cr, &command_status, &scsi_status); 3603 3604 /* 3605 * Abort the chain on a fatal error. 3606 * 3607 * XXX which of these are actually errors? 3608 */ 3609 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3610 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3611 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3612 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3613 ciss_name_command_status(command_status)); 3614 ciss_release_request(cr); 3615 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3616 return; 3617 } 3618 3619 /* 3620 * If the adapter gave us a text message, print it. 3621 */ 3622 if (cn->message[0] != 0) 3623 ciss_printf(sc, "*** %.80s\n", cn->message); 3624 3625 debug(0, "notify event class %d subclass %d detail %d", 3626 cn->class, cn->subclass, cn->detail); 3627 3628 /* 3629 * If the response indicates that the notifier has been aborted, 3630 * release the notifier command. 3631 */ 3632 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3633 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3634 (cn->detail == 1)) { 3635 debug(0, "notifier exiting"); 3636 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3637 ciss_release_request(cr); 3638 sc->ciss_periodic_notify = NULL; 3639 wakeup(&sc->ciss_periodic_notify); 3640 } else { 3641 /* Handle notify events in a kernel thread */ 3642 ciss_enqueue_notify(cr); 3643 sc->ciss_periodic_notify = NULL; 3644 wakeup(&sc->ciss_periodic_notify); 3645 wakeup(&sc->ciss_notify); 3646 } 3647 /* 3648 * Send a new notify event command, if we're not aborting. 3649 */ 3650 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3651 ciss_notify_event(sc); 3652 } 3653 } 3654 3655 /************************************************************************ 3656 * Abort the Notify Event chain. 3657 * 3658 * Note that we can't just abort the command in progress; we have to 3659 * explicitly issue an Abort Notify Event command in order for the 3660 * adapter to clean up correctly. 3661 * 3662 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3663 * the chain will not restart itself. 3664 */ 3665 static int 3666 ciss_notify_abort(struct ciss_softc *sc) 3667 { 3668 struct ciss_request *cr; 3669 struct ciss_command *cc; 3670 struct ciss_notify_cdb *cnc; 3671 int error, command_status, scsi_status; 3672 3673 debug_called(1); 3674 3675 cr = NULL; 3676 error = 0; 3677 3678 /* verify that there's an outstanding command */ 3679 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3680 goto out; 3681 3682 /* get a command to issue the abort with */ 3683 if ((error = ciss_get_request(sc, &cr))) 3684 goto out; 3685 3686 /* get a buffer for the result */ 3687 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3688 debug(0, "can't get notify event request buffer"); 3689 error = ENOMEM; 3690 goto out; 3691 } 3692 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3693 3694 /* build the CDB */ 3695 cc = CISS_FIND_COMMAND(cr); 3696 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3697 cc->header.address.physical.bus = 0; 3698 cc->header.address.physical.target = 0; 3699 cc->cdb.cdb_length = sizeof(*cnc); 3700 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3701 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3702 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3703 cc->cdb.timeout = 0; /* no timeout, we hope */ 3704 3705 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3706 bzero(cnc, sizeof(*cnc)); 3707 cnc->opcode = CISS_OPCODE_WRITE; 3708 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3709 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3710 3711 ciss_print_request(cr); 3712 3713 /* 3714 * Submit the request and wait for it to complete. 3715 */ 3716 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3717 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3718 goto out; 3719 } 3720 3721 /* 3722 * Check response. 3723 */ 3724 ciss_report_request(cr, &command_status, &scsi_status); 3725 switch(command_status) { 3726 case CISS_CMD_STATUS_SUCCESS: 3727 break; 3728 case CISS_CMD_STATUS_INVALID_COMMAND: 3729 /* 3730 * Some older adapters don't support the CISS version of this 3731 * command. Fall back to using the BMIC version. 3732 */ 3733 error = ciss_notify_abort_bmic(sc); 3734 if (error != 0) 3735 goto out; 3736 break; 3737 3738 case CISS_CMD_STATUS_TARGET_STATUS: 3739 /* 3740 * This can happen if the adapter thinks there wasn't an outstanding 3741 * Notify Event command but we did. We clean up here. 3742 */ 3743 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3744 if (sc->ciss_periodic_notify != NULL) 3745 ciss_release_request(sc->ciss_periodic_notify); 3746 error = 0; 3747 goto out; 3748 } 3749 /* FALLTHROUGH */ 3750 3751 default: 3752 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3753 ciss_name_command_status(command_status)); 3754 error = EIO; 3755 goto out; 3756 } 3757 3758 /* 3759 * Sleep waiting for the notifier command to complete. Note 3760 * that if it doesn't, we may end up in a bad situation, since 3761 * the adapter may deliver it later. Also note that the adapter 3762 * requires the Notify Event command to be cancelled in order to 3763 * maintain internal bookkeeping. 3764 */ 3765 while (sc->ciss_periodic_notify != NULL) { 3766 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3767 if (error == EWOULDBLOCK) { 3768 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3769 break; 3770 } 3771 } 3772 3773 out: 3774 /* release the cancel request */ 3775 if (cr != NULL) { 3776 if (cr->cr_data != NULL) 3777 free(cr->cr_data, CISS_MALLOC_CLASS); 3778 ciss_release_request(cr); 3779 } 3780 if (error == 0) 3781 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3782 return(error); 3783 } 3784 3785 /************************************************************************ 3786 * Abort the Notify Event chain using a BMIC command. 3787 */ 3788 static int 3789 ciss_notify_abort_bmic(struct ciss_softc *sc) 3790 { 3791 struct ciss_request *cr; 3792 int error, command_status; 3793 3794 debug_called(1); 3795 3796 cr = NULL; 3797 error = 0; 3798 3799 /* verify that there's an outstanding command */ 3800 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3801 goto out; 3802 3803 /* 3804 * Build a BMIC command to cancel the Notify on Event command. 3805 * 3806 * Note that we are sending a CISS opcode here. Odd. 3807 */ 3808 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3809 NULL, 0)) != 0) 3810 goto out; 3811 3812 /* 3813 * Submit the request and wait for it to complete. 3814 */ 3815 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3816 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3817 goto out; 3818 } 3819 3820 /* 3821 * Check response. 3822 */ 3823 ciss_report_request(cr, &command_status, NULL); 3824 switch(command_status) { 3825 case CISS_CMD_STATUS_SUCCESS: 3826 break; 3827 default: 3828 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3829 ciss_name_command_status(command_status)); 3830 error = EIO; 3831 goto out; 3832 } 3833 3834 out: 3835 if (cr != NULL) 3836 ciss_release_request(cr); 3837 return(error); 3838 } 3839 3840 /************************************************************************ 3841 * Handle rescanning all the logical volumes when a notify event 3842 * causes the drives to come online or offline. 3843 */ 3844 static void 3845 ciss_notify_rescan_logical(struct ciss_softc *sc) 3846 { 3847 struct ciss_lun_report *cll; 3848 struct ciss_ldrive *ld; 3849 int i, j, ndrives; 3850 3851 /* 3852 * We must rescan all logical volumes to get the right logical 3853 * drive address. 3854 */ 3855 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3856 CISS_MAX_LOGICAL); 3857 if (cll == NULL) 3858 return; 3859 3860 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3861 3862 /* 3863 * Delete any of the drives which were destroyed by the 3864 * firmware. 3865 */ 3866 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3867 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3868 ld = &sc->ciss_logical[i][j]; 3869 3870 if (ld->cl_update == 0) 3871 continue; 3872 3873 if (ld->cl_status != CISS_LD_ONLINE) { 3874 ciss_cam_rescan_target(sc, i, j); 3875 ld->cl_update = 0; 3876 if (ld->cl_ldrive) 3877 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3878 if (ld->cl_lstatus) 3879 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3880 3881 ld->cl_ldrive = NULL; 3882 ld->cl_lstatus = NULL; 3883 } 3884 } 3885 } 3886 3887 /* 3888 * Scan for new drives. 3889 */ 3890 for (i = 0; i < ndrives; i++) { 3891 int bus, target; 3892 3893 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3894 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3895 ld = &sc->ciss_logical[bus][target]; 3896 3897 if (ld->cl_update == 0) 3898 continue; 3899 3900 ld->cl_update = 0; 3901 ld->cl_address = cll->lun[i]; 3902 ld->cl_controller = &sc->ciss_controllers[bus]; 3903 if (ciss_identify_logical(sc, ld) == 0) { 3904 ciss_cam_rescan_target(sc, bus, target); 3905 } 3906 } 3907 free(cll, CISS_MALLOC_CLASS); 3908 } 3909 3910 /************************************************************************ 3911 * Handle a notify event relating to the status of a logical drive. 3912 * 3913 * XXX need to be able to defer some of these to properly handle 3914 * calling the "ID Physical drive" command, unless the 'extended' 3915 * drive IDs are always in BIG_MAP format. 3916 */ 3917 static void 3918 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3919 { 3920 struct ciss_ldrive *ld; 3921 int ostatus, bus, target; 3922 3923 debug_called(2); 3924 3925 bus = cn->device.physical.bus; 3926 target = cn->data.logical_status.logical_drive; 3927 ld = &sc->ciss_logical[bus][target]; 3928 3929 switch (cn->subclass) { 3930 case CISS_NOTIFY_LOGICAL_STATUS: 3931 switch (cn->detail) { 3932 case 0: 3933 ciss_name_device(sc, bus, target); 3934 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3935 cn->data.logical_status.logical_drive, ld->cl_name, 3936 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3937 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3938 cn->data.logical_status.spare_state, 3939 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3940 3941 /* 3942 * Update our idea of the drive's status. 3943 */ 3944 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3945 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3946 if (ld->cl_lstatus != NULL) 3947 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3948 3949 /* 3950 * Have CAM rescan the drive if its status has changed. 3951 */ 3952 if (ostatus != ld->cl_status) { 3953 ld->cl_update = 1; 3954 ciss_notify_rescan_logical(sc); 3955 } 3956 3957 break; 3958 3959 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3960 ciss_name_device(sc, bus, target); 3961 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3962 cn->data.logical_status.logical_drive, ld->cl_name); 3963 ciss_accept_media(sc, ld); 3964 3965 ld->cl_update = 1; 3966 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3967 ciss_notify_rescan_logical(sc); 3968 break; 3969 3970 case 2: 3971 case 3: 3972 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3973 cn->data.rebuild_aborted.logical_drive, 3974 ld->cl_name, 3975 (cn->detail == 2) ? "read" : "write"); 3976 break; 3977 } 3978 break; 3979 3980 case CISS_NOTIFY_LOGICAL_ERROR: 3981 if (cn->detail == 0) { 3982 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3983 cn->data.io_error.logical_drive, 3984 ld->cl_name, 3985 cn->data.io_error.failure_bus, 3986 cn->data.io_error.failure_drive); 3987 /* XXX should we take the drive down at this point, or will we be told? */ 3988 } 3989 break; 3990 3991 case CISS_NOTIFY_LOGICAL_SURFACE: 3992 if (cn->detail == 0) 3993 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 3994 cn->data.consistency_completed.logical_drive, 3995 ld->cl_name); 3996 break; 3997 } 3998 } 3999 4000 /************************************************************************ 4001 * Handle a notify event relating to the status of a physical drive. 4002 */ 4003 static void 4004 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4005 { 4006 } 4007 4008 /************************************************************************ 4009 * Handle a notify event relating to the status of a physical drive. 4010 */ 4011 static void 4012 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4013 { 4014 struct ciss_lun_report *cll = NULL; 4015 int bus, target; 4016 4017 switch (cn->subclass) { 4018 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4019 case CISS_NOTIFY_HOTPLUG_NONDISK: 4020 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4021 target = 4022 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4023 4024 if (cn->detail == 0) { 4025 /* 4026 * Mark the device offline so that it'll start producing selection 4027 * timeouts to the upper layer. 4028 */ 4029 if ((bus >= 0) && (target >= 0)) 4030 sc->ciss_physical[bus][target].cp_online = 0; 4031 } else { 4032 /* 4033 * Rescan the physical lun list for new items 4034 */ 4035 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4036 CISS_MAX_PHYSICAL); 4037 if (cll == NULL) { 4038 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4039 break; 4040 } 4041 ciss_filter_physical(sc, cll); 4042 } 4043 break; 4044 4045 default: 4046 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4047 return; 4048 } 4049 4050 if (cll != NULL) 4051 free(cll, CISS_MALLOC_CLASS); 4052 } 4053 4054 /************************************************************************ 4055 * Handle deferred processing of notify events. Notify events may need 4056 * sleep which is unsafe during an interrupt. 4057 */ 4058 static void 4059 ciss_notify_thread(void *arg) 4060 { 4061 struct ciss_softc *sc; 4062 struct ciss_request *cr; 4063 struct ciss_notify *cn; 4064 4065 sc = (struct ciss_softc *)arg; 4066 #if __FreeBSD_version >= 500000 4067 mtx_lock(&sc->ciss_mtx); 4068 #endif 4069 4070 for (;;) { 4071 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4072 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4073 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4074 } 4075 4076 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4077 break; 4078 4079 cr = ciss_dequeue_notify(sc); 4080 4081 if (cr == NULL) 4082 panic("cr null"); 4083 cn = (struct ciss_notify *)cr->cr_data; 4084 4085 switch (cn->class) { 4086 case CISS_NOTIFY_HOTPLUG: 4087 ciss_notify_hotplug(sc, cn); 4088 break; 4089 case CISS_NOTIFY_LOGICAL: 4090 ciss_notify_logical(sc, cn); 4091 break; 4092 case CISS_NOTIFY_PHYSICAL: 4093 ciss_notify_physical(sc, cn); 4094 break; 4095 } 4096 4097 ciss_release_request(cr); 4098 4099 } 4100 sc->ciss_notify_thread = NULL; 4101 wakeup(&sc->ciss_notify_thread); 4102 4103 #if __FreeBSD_version >= 500000 4104 mtx_unlock(&sc->ciss_mtx); 4105 #endif 4106 kproc_exit(0); 4107 } 4108 4109 /************************************************************************ 4110 * Start the notification kernel thread. 4111 */ 4112 static void 4113 ciss_spawn_notify_thread(struct ciss_softc *sc) 4114 { 4115 4116 #if __FreeBSD_version > 500005 4117 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4118 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4119 device_get_unit(sc->ciss_dev))) 4120 #else 4121 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4122 &sc->ciss_notify_thread, "ciss_notify%d", 4123 device_get_unit(sc->ciss_dev))) 4124 #endif 4125 panic("Could not create notify thread\n"); 4126 } 4127 4128 /************************************************************************ 4129 * Kill the notification kernel thread. 4130 */ 4131 static void 4132 ciss_kill_notify_thread(struct ciss_softc *sc) 4133 { 4134 4135 if (sc->ciss_notify_thread == NULL) 4136 return; 4137 4138 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4139 wakeup(&sc->ciss_notify); 4140 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4141 } 4142 4143 /************************************************************************ 4144 * Print a request. 4145 */ 4146 static void 4147 ciss_print_request(struct ciss_request *cr) 4148 { 4149 struct ciss_softc *sc; 4150 struct ciss_command *cc; 4151 int i; 4152 4153 sc = cr->cr_sc; 4154 cc = CISS_FIND_COMMAND(cr); 4155 4156 ciss_printf(sc, "REQUEST @ %p\n", cr); 4157 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4158 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4159 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4160 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4161 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4162 switch(cc->header.address.mode.mode) { 4163 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4164 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4165 ciss_printf(sc, " physical bus %d target %d\n", 4166 cc->header.address.physical.bus, cc->header.address.physical.target); 4167 break; 4168 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4169 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4170 break; 4171 } 4172 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4173 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4174 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4175 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4176 cc->cdb.cdb_length, 4177 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4178 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4179 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4180 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4181 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4182 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4183 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4184 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4185 4186 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4187 /* XXX print error info */ 4188 } else { 4189 /* since we don't use chained s/g, don't support it here */ 4190 for (i = 0; i < cc->header.sg_in_list; i++) { 4191 if ((i % 4) == 0) 4192 ciss_printf(sc, " "); 4193 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4194 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4195 printf("\n"); 4196 } 4197 } 4198 } 4199 4200 /************************************************************************ 4201 * Print information about the status of a logical drive. 4202 */ 4203 static void 4204 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4205 { 4206 int bus, target, i; 4207 4208 if (ld->cl_lstatus == NULL) { 4209 printf("does not exist\n"); 4210 return; 4211 } 4212 4213 /* print drive status */ 4214 switch(ld->cl_lstatus->status) { 4215 case CISS_LSTATUS_OK: 4216 printf("online\n"); 4217 break; 4218 case CISS_LSTATUS_INTERIM_RECOVERY: 4219 printf("in interim recovery mode\n"); 4220 break; 4221 case CISS_LSTATUS_READY_RECOVERY: 4222 printf("ready to begin recovery\n"); 4223 break; 4224 case CISS_LSTATUS_RECOVERING: 4225 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4226 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4227 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4228 bus, target, ld->cl_lstatus->blocks_to_recover); 4229 break; 4230 case CISS_LSTATUS_EXPANDING: 4231 printf("being expanded, %u blocks remaining\n", 4232 ld->cl_lstatus->blocks_to_recover); 4233 break; 4234 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4235 printf("queued for expansion\n"); 4236 break; 4237 case CISS_LSTATUS_FAILED: 4238 printf("queued for expansion\n"); 4239 break; 4240 case CISS_LSTATUS_WRONG_PDRIVE: 4241 printf("wrong physical drive inserted\n"); 4242 break; 4243 case CISS_LSTATUS_MISSING_PDRIVE: 4244 printf("missing a needed physical drive\n"); 4245 break; 4246 case CISS_LSTATUS_BECOMING_READY: 4247 printf("becoming ready\n"); 4248 break; 4249 } 4250 4251 /* print failed physical drives */ 4252 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4253 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4254 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4255 if (bus == -1) 4256 continue; 4257 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4258 ld->cl_lstatus->drive_failure_map[i]); 4259 } 4260 } 4261 4262 #ifdef CISS_DEBUG 4263 /************************************************************************ 4264 * Print information about the controller/driver. 4265 */ 4266 static void 4267 ciss_print_adapter(struct ciss_softc *sc) 4268 { 4269 int i, j; 4270 4271 ciss_printf(sc, "ADAPTER:\n"); 4272 for (i = 0; i < CISSQ_COUNT; i++) { 4273 ciss_printf(sc, "%s %d/%d\n", 4274 i == 0 ? "free" : 4275 i == 1 ? "busy" : "complete", 4276 sc->ciss_qstat[i].q_length, 4277 sc->ciss_qstat[i].q_max); 4278 } 4279 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4280 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4281 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4282 4283 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4284 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4285 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4286 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4287 } 4288 } 4289 4290 /* XXX Should physical drives be printed out here? */ 4291 4292 for (i = 1; i < sc->ciss_max_requests; i++) 4293 ciss_print_request(sc->ciss_request + i); 4294 } 4295 4296 /* DDB hook */ 4297 static void 4298 ciss_print0(void) 4299 { 4300 struct ciss_softc *sc; 4301 4302 sc = devclass_get_softc(devclass_find("ciss"), 0); 4303 if (sc == NULL) { 4304 printf("no ciss controllers\n"); 4305 } else { 4306 ciss_print_adapter(sc); 4307 } 4308 } 4309 #endif 4310 4311 /************************************************************************ 4312 * Return a name for a logical drive status value. 4313 */ 4314 static const char * 4315 ciss_name_ldrive_status(int status) 4316 { 4317 switch (status) { 4318 case CISS_LSTATUS_OK: 4319 return("OK"); 4320 case CISS_LSTATUS_FAILED: 4321 return("failed"); 4322 case CISS_LSTATUS_NOT_CONFIGURED: 4323 return("not configured"); 4324 case CISS_LSTATUS_INTERIM_RECOVERY: 4325 return("interim recovery"); 4326 case CISS_LSTATUS_READY_RECOVERY: 4327 return("ready for recovery"); 4328 case CISS_LSTATUS_RECOVERING: 4329 return("recovering"); 4330 case CISS_LSTATUS_WRONG_PDRIVE: 4331 return("wrong physical drive inserted"); 4332 case CISS_LSTATUS_MISSING_PDRIVE: 4333 return("missing physical drive"); 4334 case CISS_LSTATUS_EXPANDING: 4335 return("expanding"); 4336 case CISS_LSTATUS_BECOMING_READY: 4337 return("becoming ready"); 4338 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4339 return("queued for expansion"); 4340 } 4341 return("unknown status"); 4342 } 4343 4344 /************************************************************************ 4345 * Return an online/offline/nonexistent value for a logical drive 4346 * status value. 4347 */ 4348 static int 4349 ciss_decode_ldrive_status(int status) 4350 { 4351 switch(status) { 4352 case CISS_LSTATUS_NOT_CONFIGURED: 4353 return(CISS_LD_NONEXISTENT); 4354 4355 case CISS_LSTATUS_OK: 4356 case CISS_LSTATUS_INTERIM_RECOVERY: 4357 case CISS_LSTATUS_READY_RECOVERY: 4358 case CISS_LSTATUS_RECOVERING: 4359 case CISS_LSTATUS_EXPANDING: 4360 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4361 return(CISS_LD_ONLINE); 4362 4363 case CISS_LSTATUS_FAILED: 4364 case CISS_LSTATUS_WRONG_PDRIVE: 4365 case CISS_LSTATUS_MISSING_PDRIVE: 4366 case CISS_LSTATUS_BECOMING_READY: 4367 default: 4368 return(CISS_LD_OFFLINE); 4369 } 4370 } 4371 4372 4373 /************************************************************************ 4374 * Return a name for a logical drive's organisation. 4375 */ 4376 static const char * 4377 ciss_name_ldrive_org(int org) 4378 { 4379 switch(org) { 4380 case CISS_LDRIVE_RAID0: 4381 return("RAID 0"); 4382 case CISS_LDRIVE_RAID1: 4383 return("RAID 1"); 4384 case CISS_LDRIVE_RAID4: 4385 return("RAID 4"); 4386 case CISS_LDRIVE_RAID5: 4387 return("RAID 5"); 4388 case CISS_LDRIVE_RAID51: 4389 return("RAID 5+1"); 4390 case CISS_LDRIVE_RAIDADG: 4391 return("RAID ADG"); 4392 } 4393 return("unkown"); 4394 } 4395 4396 /************************************************************************ 4397 * Return a name for a command status value. 4398 */ 4399 static const char * 4400 ciss_name_command_status(int status) 4401 { 4402 switch(status) { 4403 case CISS_CMD_STATUS_SUCCESS: 4404 return("success"); 4405 case CISS_CMD_STATUS_TARGET_STATUS: 4406 return("target status"); 4407 case CISS_CMD_STATUS_DATA_UNDERRUN: 4408 return("data underrun"); 4409 case CISS_CMD_STATUS_DATA_OVERRUN: 4410 return("data overrun"); 4411 case CISS_CMD_STATUS_INVALID_COMMAND: 4412 return("invalid command"); 4413 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4414 return("protocol error"); 4415 case CISS_CMD_STATUS_HARDWARE_ERROR: 4416 return("hardware error"); 4417 case CISS_CMD_STATUS_CONNECTION_LOST: 4418 return("connection lost"); 4419 case CISS_CMD_STATUS_ABORTED: 4420 return("aborted"); 4421 case CISS_CMD_STATUS_ABORT_FAILED: 4422 return("abort failed"); 4423 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4424 return("unsolicited abort"); 4425 case CISS_CMD_STATUS_TIMEOUT: 4426 return("timeout"); 4427 case CISS_CMD_STATUS_UNABORTABLE: 4428 return("unabortable"); 4429 } 4430 return("unknown status"); 4431 } 4432 4433 /************************************************************************ 4434 * Handle an open on the control device. 4435 */ 4436 static int 4437 ciss_open(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4438 { 4439 struct ciss_softc *sc; 4440 4441 debug_called(1); 4442 4443 sc = (struct ciss_softc *)dev->si_drv1; 4444 4445 /* we might want to veto if someone already has us open */ 4446 4447 mtx_lock(&sc->ciss_mtx); 4448 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4449 mtx_unlock(&sc->ciss_mtx); 4450 return(0); 4451 } 4452 4453 /************************************************************************ 4454 * Handle the last close on the control device. 4455 */ 4456 static int 4457 ciss_close(struct cdev *dev, int flags, int fmt, d_thread_t *p) 4458 { 4459 struct ciss_softc *sc; 4460 4461 debug_called(1); 4462 4463 sc = (struct ciss_softc *)dev->si_drv1; 4464 4465 mtx_lock(&sc->ciss_mtx); 4466 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4467 mtx_unlock(&sc->ciss_mtx); 4468 return (0); 4469 } 4470 4471 /******************************************************************************** 4472 * Handle adapter-specific control operations. 4473 * 4474 * Note that the API here is compatible with the Linux driver, in order to 4475 * simplify the porting of Compaq's userland tools. 4476 */ 4477 static int 4478 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p) 4479 { 4480 struct ciss_softc *sc; 4481 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4482 #ifdef __amd64__ 4483 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4484 IOCTL_Command_struct ioc_swab; 4485 #endif 4486 int error; 4487 4488 debug_called(1); 4489 4490 sc = (struct ciss_softc *)dev->si_drv1; 4491 error = 0; 4492 mtx_lock(&sc->ciss_mtx); 4493 4494 switch(cmd) { 4495 case CCISS_GETQSTATS: 4496 { 4497 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4498 4499 switch (cr->cs_item) { 4500 case CISSQ_FREE: 4501 case CISSQ_NOTIFY: 4502 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4503 sizeof(struct ciss_qstat)); 4504 break; 4505 default: 4506 error = ENOIOCTL; 4507 break; 4508 } 4509 4510 break; 4511 } 4512 4513 case CCISS_GETPCIINFO: 4514 { 4515 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4516 4517 pis->bus = pci_get_bus(sc->ciss_dev); 4518 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4519 pis->board_id = pci_get_devid(sc->ciss_dev); 4520 4521 break; 4522 } 4523 4524 case CCISS_GETINTINFO: 4525 { 4526 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4527 4528 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4529 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4530 4531 break; 4532 } 4533 4534 case CCISS_SETINTINFO: 4535 { 4536 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4537 4538 if ((cis->delay == 0) && (cis->count == 0)) { 4539 error = EINVAL; 4540 break; 4541 } 4542 4543 /* 4544 * XXX apparently this is only safe if the controller is idle, 4545 * we should suspend it before doing this. 4546 */ 4547 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4548 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4549 4550 if (ciss_update_config(sc)) 4551 error = EIO; 4552 4553 /* XXX resume the controller here */ 4554 break; 4555 } 4556 4557 case CCISS_GETNODENAME: 4558 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4559 sizeof(NodeName_type)); 4560 break; 4561 4562 case CCISS_SETNODENAME: 4563 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4564 sizeof(NodeName_type)); 4565 if (ciss_update_config(sc)) 4566 error = EIO; 4567 break; 4568 4569 case CCISS_GETHEARTBEAT: 4570 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4571 break; 4572 4573 case CCISS_GETBUSTYPES: 4574 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4575 break; 4576 4577 case CCISS_GETFIRMVER: 4578 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4579 sizeof(FirmwareVer_type)); 4580 break; 4581 4582 case CCISS_GETDRIVERVER: 4583 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4584 break; 4585 4586 case CCISS_REVALIDVOLS: 4587 /* 4588 * This is a bit ugly; to do it "right" we really need 4589 * to find any disks that have changed, kick CAM off them, 4590 * then rescan only these disks. It'd be nice if they 4591 * a) told us which disk(s) they were going to play with, 4592 * and b) which ones had arrived. 8( 4593 */ 4594 break; 4595 4596 #ifdef __amd64__ 4597 case CCISS_PASSTHRU32: 4598 ioc_swab.LUN_info = ioc32->LUN_info; 4599 ioc_swab.Request = ioc32->Request; 4600 ioc_swab.error_info = ioc32->error_info; 4601 ioc_swab.buf_size = ioc32->buf_size; 4602 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4603 ioc = &ioc_swab; 4604 /* FALLTHROUGH */ 4605 #endif 4606 4607 case CCISS_PASSTHRU: 4608 error = ciss_user_command(sc, ioc); 4609 break; 4610 4611 default: 4612 debug(0, "unknown ioctl 0x%lx", cmd); 4613 4614 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4615 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4616 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4617 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4618 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4619 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4620 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4621 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4622 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4623 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4624 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4625 4626 error = ENOIOCTL; 4627 break; 4628 } 4629 4630 mtx_unlock(&sc->ciss_mtx); 4631 return(error); 4632 } 4633