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 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 109 "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_setup_msix(struct ciss_softc *sc); 121 static int ciss_init_perf(struct ciss_softc *sc); 122 static int ciss_wait_adapter(struct ciss_softc *sc); 123 static int ciss_flush_adapter(struct ciss_softc *sc); 124 static int ciss_init_requests(struct ciss_softc *sc); 125 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 126 int nseg, int error); 127 static int ciss_identify_adapter(struct ciss_softc *sc); 128 static int ciss_init_logical(struct ciss_softc *sc); 129 static int ciss_init_physical(struct ciss_softc *sc); 130 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 131 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 133 static int ciss_update_config(struct ciss_softc *sc); 134 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 135 static void ciss_init_sysctl(struct ciss_softc *sc); 136 static void ciss_soft_reset(struct ciss_softc *sc); 137 static void ciss_free(struct ciss_softc *sc); 138 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 139 static void ciss_kill_notify_thread(struct ciss_softc *sc); 140 141 /* request submission/completion */ 142 static int ciss_start(struct ciss_request *cr); 143 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 145 static void ciss_intr(void *arg); 146 static void ciss_perf_intr(void *arg); 147 static void ciss_perf_msi_intr(void *arg); 148 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 149 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 150 static int ciss_synch_request(struct ciss_request *cr, int timeout); 151 static int ciss_poll_request(struct ciss_request *cr, int timeout); 152 static int ciss_wait_request(struct ciss_request *cr, int timeout); 153 #if 0 154 static int ciss_abort_request(struct ciss_request *cr); 155 #endif 156 157 /* request queueing */ 158 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 159 static void ciss_preen_command(struct ciss_request *cr); 160 static void ciss_release_request(struct ciss_request *cr); 161 162 /* request helpers */ 163 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 164 int opcode, void **bufp, size_t bufsize); 165 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 166 167 /* DMA map/unmap */ 168 static int ciss_map_request(struct ciss_request *cr); 169 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 170 int nseg, int error); 171 static void ciss_unmap_request(struct ciss_request *cr); 172 173 /* CAM interface */ 174 static int ciss_cam_init(struct ciss_softc *sc); 175 static void ciss_cam_rescan_target(struct ciss_softc *sc, 176 int bus, int target); 177 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 178 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 179 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static void ciss_cam_poll(struct cam_sim *sim); 181 static void ciss_cam_complete(struct ciss_request *cr); 182 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 183 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 184 int bus, int target); 185 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 186 187 /* periodic status monitoring */ 188 static void ciss_periodic(void *arg); 189 static void ciss_nop_complete(struct ciss_request *cr); 190 static void ciss_disable_adapter(struct ciss_softc *sc); 191 static void ciss_notify_event(struct ciss_softc *sc); 192 static void ciss_notify_complete(struct ciss_request *cr); 193 static int ciss_notify_abort(struct ciss_softc *sc); 194 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 195 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 196 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 198 199 /* debugging output */ 200 static void ciss_print_request(struct ciss_request *cr); 201 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 202 static const char *ciss_name_ldrive_status(int status); 203 static int ciss_decode_ldrive_status(int status); 204 static const char *ciss_name_ldrive_org(int org); 205 static const char *ciss_name_command_status(int status); 206 207 /* 208 * PCI bus interface. 209 */ 210 static device_method_t ciss_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, ciss_probe), 213 DEVMETHOD(device_attach, ciss_attach), 214 DEVMETHOD(device_detach, ciss_detach), 215 DEVMETHOD(device_shutdown, ciss_shutdown), 216 { 0, 0 } 217 }; 218 219 static driver_t ciss_pci_driver = { 220 "ciss", 221 ciss_methods, 222 sizeof(struct ciss_softc) 223 }; 224 225 static devclass_t ciss_devclass; 226 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 227 MODULE_DEPEND(ciss, cam, 1, 1, 1); 228 MODULE_DEPEND(ciss, pci, 1, 1, 1); 229 230 /* 231 * Control device interface. 232 */ 233 static d_open_t ciss_open; 234 static d_close_t ciss_close; 235 static d_ioctl_t ciss_ioctl; 236 237 static struct cdevsw ciss_cdevsw = { 238 .d_version = D_VERSION, 239 .d_flags = 0, 240 .d_open = ciss_open, 241 .d_close = ciss_close, 242 .d_ioctl = ciss_ioctl, 243 .d_name = "ciss", 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 286 static struct 287 { 288 u_int16_t subvendor; 289 u_int16_t subdevice; 290 int flags; 291 char *desc; 292 } ciss_vendor_data[] = { 293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 339 { 0, 0, 0, NULL } 340 }; 341 342 /************************************************************************ 343 * Find a match for the device in our list of known adapters. 344 */ 345 static int 346 ciss_lookup(device_t dev) 347 { 348 int i; 349 350 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 351 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 352 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 353 return(i); 354 } 355 return(-1); 356 } 357 358 /************************************************************************ 359 * Match a known CISS adapter. 360 */ 361 static int 362 ciss_probe(device_t dev) 363 { 364 int i; 365 366 i = ciss_lookup(dev); 367 if (i != -1) { 368 device_set_desc(dev, ciss_vendor_data[i].desc); 369 return(BUS_PROBE_DEFAULT); 370 } 371 return(ENOENT); 372 } 373 374 /************************************************************************ 375 * Attach the driver to this adapter. 376 */ 377 static int 378 ciss_attach(device_t dev) 379 { 380 struct ciss_softc *sc; 381 int error; 382 383 debug_called(1); 384 385 #ifdef CISS_DEBUG 386 /* print structure/union sizes */ 387 debug_struct(ciss_command); 388 debug_struct(ciss_header); 389 debug_union(ciss_device_address); 390 debug_struct(ciss_cdb); 391 debug_struct(ciss_report_cdb); 392 debug_struct(ciss_notify_cdb); 393 debug_struct(ciss_notify); 394 debug_struct(ciss_message_cdb); 395 debug_struct(ciss_error_info_pointer); 396 debug_struct(ciss_error_info); 397 debug_struct(ciss_sg_entry); 398 debug_struct(ciss_config_table); 399 debug_struct(ciss_bmic_cdb); 400 debug_struct(ciss_bmic_id_ldrive); 401 debug_struct(ciss_bmic_id_lstatus); 402 debug_struct(ciss_bmic_id_table); 403 debug_struct(ciss_bmic_id_pdrive); 404 debug_struct(ciss_bmic_blink_pdrive); 405 debug_struct(ciss_bmic_flush_cache); 406 debug_const(CISS_MAX_REQUESTS); 407 debug_const(CISS_MAX_LOGICAL); 408 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 409 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 410 debug_const(CISS_COMMAND_ALLOC_SIZE); 411 debug_const(CISS_COMMAND_SG_LENGTH); 412 413 debug_type(cciss_pci_info_struct); 414 debug_type(cciss_coalint_struct); 415 debug_type(cciss_coalint_struct); 416 debug_type(NodeName_type); 417 debug_type(NodeName_type); 418 debug_type(Heartbeat_type); 419 debug_type(BusTypes_type); 420 debug_type(FirmwareVer_type); 421 debug_type(DriverVer_type); 422 debug_type(IOCTL_Command_struct); 423 #endif 424 425 sc = device_get_softc(dev); 426 sc->ciss_dev = dev; 427 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 428 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 429 430 /* 431 * Do PCI-specific init. 432 */ 433 if ((error = ciss_init_pci(sc)) != 0) 434 goto out; 435 436 /* 437 * Initialise driver queues. 438 */ 439 ciss_initq_free(sc); 440 ciss_initq_notify(sc); 441 442 /* 443 * Initalize device sysctls. 444 */ 445 ciss_init_sysctl(sc); 446 447 /* 448 * Initialise command/request pool. 449 */ 450 if ((error = ciss_init_requests(sc)) != 0) 451 goto out; 452 453 /* 454 * Get adapter information. 455 */ 456 if ((error = ciss_identify_adapter(sc)) != 0) 457 goto out; 458 459 /* 460 * Find all the physical devices. 461 */ 462 if ((error = ciss_init_physical(sc)) != 0) 463 goto out; 464 465 /* 466 * Build our private table of logical devices. 467 */ 468 if ((error = ciss_init_logical(sc)) != 0) 469 goto out; 470 471 /* 472 * Enable interrupts so that the CAM scan can complete. 473 */ 474 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 475 476 /* 477 * Initialise the CAM interface. 478 */ 479 if ((error = ciss_cam_init(sc)) != 0) 480 goto out; 481 482 /* 483 * Start the heartbeat routine and event chain. 484 */ 485 ciss_periodic(sc); 486 487 /* 488 * Create the control device. 489 */ 490 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 491 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 492 "ciss%d", device_get_unit(sc->ciss_dev)); 493 sc->ciss_dev_t->si_drv1 = sc; 494 495 /* 496 * The adapter is running; synchronous commands can now sleep 497 * waiting for an interrupt to signal completion. 498 */ 499 sc->ciss_flags |= CISS_FLAG_RUNNING; 500 501 ciss_spawn_notify_thread(sc); 502 503 error = 0; 504 out: 505 if (error != 0) { 506 /* ciss_free() expects the mutex to be held */ 507 mtx_lock(&sc->ciss_mtx); 508 ciss_free(sc); 509 } 510 return(error); 511 } 512 513 /************************************************************************ 514 * Detach the driver from this adapter. 515 */ 516 static int 517 ciss_detach(device_t dev) 518 { 519 struct ciss_softc *sc = device_get_softc(dev); 520 521 debug_called(1); 522 523 mtx_lock(&sc->ciss_mtx); 524 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 525 mtx_unlock(&sc->ciss_mtx); 526 return (EBUSY); 527 } 528 529 /* flush adapter cache */ 530 ciss_flush_adapter(sc); 531 532 /* release all resources. The mutex is released and freed here too. */ 533 ciss_free(sc); 534 535 return(0); 536 } 537 538 /************************************************************************ 539 * Prepare adapter for system shutdown. 540 */ 541 static int 542 ciss_shutdown(device_t dev) 543 { 544 struct ciss_softc *sc = device_get_softc(dev); 545 546 debug_called(1); 547 548 mtx_lock(&sc->ciss_mtx); 549 /* flush adapter cache */ 550 ciss_flush_adapter(sc); 551 552 if (sc->ciss_soft_reset) 553 ciss_soft_reset(sc); 554 mtx_unlock(&sc->ciss_mtx); 555 556 return(0); 557 } 558 559 static void 560 ciss_init_sysctl(struct ciss_softc *sc) 561 { 562 563 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 564 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 565 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 566 } 567 568 /************************************************************************ 569 * Perform PCI-specific attachment actions. 570 */ 571 static int 572 ciss_init_pci(struct ciss_softc *sc) 573 { 574 uintptr_t cbase, csize, cofs; 575 uint32_t method, supported_methods; 576 int error, sqmask, i; 577 void *intr; 578 579 debug_called(1); 580 581 /* 582 * Work out adapter type. 583 */ 584 i = ciss_lookup(sc->ciss_dev); 585 if (i < 0) { 586 ciss_printf(sc, "unknown adapter type\n"); 587 return (ENXIO); 588 } 589 590 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 591 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 592 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 593 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 594 } else { 595 /* 596 * XXX Big hammer, masks/unmasks all possible interrupts. This should 597 * work on all hardware variants. Need to add code to handle the 598 * "controller crashed" interupt bit that this unmasks. 599 */ 600 sqmask = ~0; 601 } 602 603 /* 604 * Allocate register window first (we need this to find the config 605 * struct). 606 */ 607 error = ENXIO; 608 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 609 if ((sc->ciss_regs_resource = 610 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 611 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 612 ciss_printf(sc, "can't allocate register window\n"); 613 return(ENXIO); 614 } 615 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 616 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 617 618 /* 619 * Find the BAR holding the config structure. If it's not the one 620 * we already mapped for registers, map it too. 621 */ 622 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 623 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 624 if ((sc->ciss_cfg_resource = 625 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 626 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 627 ciss_printf(sc, "can't allocate config window\n"); 628 return(ENXIO); 629 } 630 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 631 csize = rman_get_end(sc->ciss_cfg_resource) - 632 rman_get_start(sc->ciss_cfg_resource) + 1; 633 } else { 634 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 635 csize = rman_get_end(sc->ciss_regs_resource) - 636 rman_get_start(sc->ciss_regs_resource) + 1; 637 } 638 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 639 640 /* 641 * Use the base/size/offset values we just calculated to 642 * sanity-check the config structure. If it's OK, point to it. 643 */ 644 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 645 ciss_printf(sc, "config table outside window\n"); 646 return(ENXIO); 647 } 648 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 649 debug(1, "config struct at %p", sc->ciss_cfg); 650 651 /* 652 * Calculate the number of request structures/commands we are 653 * going to provide for this adapter. 654 */ 655 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 656 657 /* 658 * Validate the config structure. If we supported other transport 659 * methods, we could select amongst them at this point in time. 660 */ 661 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 662 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 663 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 664 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 665 return(ENXIO); 666 } 667 668 /* 669 * Select the mode of operation, prefer Performant. 670 */ 671 if (!(sc->ciss_cfg->supported_methods & 672 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 673 ciss_printf(sc, "No supported transport layers: 0x%x\n", 674 sc->ciss_cfg->supported_methods); 675 } 676 677 switch (ciss_force_transport) { 678 case 1: 679 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 680 break; 681 case 2: 682 supported_methods = CISS_TRANSPORT_METHOD_PERF; 683 break; 684 default: 685 supported_methods = sc->ciss_cfg->supported_methods; 686 break; 687 } 688 689 setup: 690 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 691 method = CISS_TRANSPORT_METHOD_PERF; 692 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 693 sc->ciss_cfg->transport_offset); 694 if (ciss_init_perf(sc)) { 695 supported_methods &= ~method; 696 goto setup; 697 } 698 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 699 method = CISS_TRANSPORT_METHOD_SIMPLE; 700 } else { 701 ciss_printf(sc, "No supported transport methods: 0x%x\n", 702 sc->ciss_cfg->supported_methods); 703 return(ENXIO); 704 } 705 706 /* 707 * Tell it we're using the low 4GB of RAM. Set the default interrupt 708 * coalescing options. 709 */ 710 sc->ciss_cfg->requested_method = method; 711 sc->ciss_cfg->command_physlimit = 0; 712 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 713 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 714 715 #ifdef __i386__ 716 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 717 #endif 718 719 if (ciss_update_config(sc)) { 720 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 721 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 722 return(ENXIO); 723 } 724 if ((sc->ciss_cfg->active_method & method) == 0) { 725 supported_methods &= ~method; 726 if (supported_methods == 0) { 727 ciss_printf(sc, "adapter refuses to go into available transports " 728 "mode (0x%x, 0x%x)\n", supported_methods, 729 sc->ciss_cfg->active_method); 730 return(ENXIO); 731 } else 732 goto setup; 733 } 734 735 /* 736 * Wait for the adapter to come ready. 737 */ 738 if ((error = ciss_wait_adapter(sc)) != 0) 739 return(error); 740 741 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 742 * interrupts have a rid of 0, this will be overridden if MSIX is used. 743 */ 744 sc->ciss_irq_rid[0] = 0; 745 if (method == CISS_TRANSPORT_METHOD_PERF) { 746 ciss_printf(sc, "PERFORMANT Transport\n"); 747 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 748 intr = ciss_perf_msi_intr; 749 } else { 750 intr = ciss_perf_intr; 751 } 752 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 753 * Unfortunately, there is no good way to know if this is a SAS 754 * controller. Hopefully enabling this bit universally will work OK. 755 * It seems to work fine for SA6i controllers. 756 */ 757 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 758 759 } else { 760 ciss_printf(sc, "SIMPLE Transport\n"); 761 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 762 if (ciss_force_interrupt == 2) 763 /* If this fails, we automatically revert to INTx */ 764 ciss_setup_msix(sc); 765 sc->ciss_perf = NULL; 766 intr = ciss_intr; 767 sc->ciss_interrupt_mask = sqmask; 768 } 769 770 /* 771 * Turn off interrupts before we go routing anything. 772 */ 773 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 774 775 /* 776 * Allocate and set up our interrupt. 777 */ 778 if ((sc->ciss_irq_resource = 779 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 780 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 781 ciss_printf(sc, "can't allocate interrupt\n"); 782 return(ENXIO); 783 } 784 785 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 786 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 787 &sc->ciss_intr)) { 788 ciss_printf(sc, "can't set up interrupt\n"); 789 return(ENXIO); 790 } 791 792 /* 793 * Allocate the parent bus DMA tag appropriate for our PCI 794 * interface. 795 * 796 * Note that "simple" adapters can only address within a 32-bit 797 * span. 798 */ 799 if (bus_dma_tag_create(NULL, /* parent */ 800 1, 0, /* alignment, boundary */ 801 BUS_SPACE_MAXADDR, /* lowaddr */ 802 BUS_SPACE_MAXADDR, /* highaddr */ 803 NULL, NULL, /* filter, filterarg */ 804 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 805 CISS_MAX_SG_ELEMENTS, /* nsegments */ 806 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 807 0, /* flags */ 808 NULL, NULL, /* lockfunc, lockarg */ 809 &sc->ciss_parent_dmat)) { 810 ciss_printf(sc, "can't allocate parent DMA tag\n"); 811 return(ENOMEM); 812 } 813 814 /* 815 * Create DMA tag for mapping buffers into adapter-addressable 816 * space. 817 */ 818 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 819 1, 0, /* alignment, boundary */ 820 BUS_SPACE_MAXADDR, /* lowaddr */ 821 BUS_SPACE_MAXADDR, /* highaddr */ 822 NULL, NULL, /* filter, filterarg */ 823 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 824 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 825 BUS_DMA_ALLOCNOW, /* flags */ 826 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 827 &sc->ciss_buffer_dmat)) { 828 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 829 return(ENOMEM); 830 } 831 return(0); 832 } 833 834 /************************************************************************ 835 * Setup MSI/MSIX operation (Performant only) 836 * Four interrupts are available, but we only use 1 right now. If MSI-X 837 * isn't avaialble, try using MSI instead. 838 */ 839 static int 840 ciss_setup_msix(struct ciss_softc *sc) 841 { 842 int val, i; 843 844 /* Weed out devices that don't actually support MSI */ 845 i = ciss_lookup(sc->ciss_dev); 846 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 847 return (EINVAL); 848 849 /* 850 * Only need to use the minimum number of MSI vectors, as the driver 851 * doesn't support directed MSIX interrupts. 852 */ 853 val = pci_msix_count(sc->ciss_dev); 854 if (val < CISS_MSI_COUNT) { 855 val = pci_msi_count(sc->ciss_dev); 856 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 857 if (val < CISS_MSI_COUNT) 858 return (EINVAL); 859 } 860 val = MIN(val, CISS_MSI_COUNT); 861 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 862 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 863 return (EINVAL); 864 } 865 866 sc->ciss_msi = val; 867 if (bootverbose) 868 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 869 (val != 1) ? "s" : ""); 870 871 for (i = 0; i < val; i++) 872 sc->ciss_irq_rid[i] = i + 1; 873 874 return (0); 875 876 } 877 878 /************************************************************************ 879 * Setup the Performant structures. 880 */ 881 static int 882 ciss_init_perf(struct ciss_softc *sc) 883 { 884 struct ciss_perf_config *pc = sc->ciss_perf; 885 int reply_size; 886 887 /* 888 * Create the DMA tag for the reply queue. 889 */ 890 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 891 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 892 1, 0, /* alignment, boundary */ 893 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 894 BUS_SPACE_MAXADDR, /* highaddr */ 895 NULL, NULL, /* filter, filterarg */ 896 reply_size, 1, /* maxsize, nsegments */ 897 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 898 0, /* flags */ 899 NULL, NULL, /* lockfunc, lockarg */ 900 &sc->ciss_reply_dmat)) { 901 ciss_printf(sc, "can't allocate reply DMA tag\n"); 902 return(ENOMEM); 903 } 904 /* 905 * Allocate memory and make it available for DMA. 906 */ 907 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 908 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 909 ciss_printf(sc, "can't allocate reply memory\n"); 910 return(ENOMEM); 911 } 912 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 913 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 914 bzero(sc->ciss_reply, reply_size); 915 916 sc->ciss_cycle = 0x1; 917 sc->ciss_rqidx = 0; 918 919 /* 920 * Preload the fetch table with common command sizes. This allows the 921 * hardware to not waste bus cycles for typical i/o commands, but also not 922 * tax the driver to be too exact in choosing sizes. The table is optimized 923 * for page-aligned i/o's, but since most i/o comes from the various pagers, 924 * it's a reasonable assumption to make. 925 */ 926 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 927 pc->fetch_count[CISS_SG_FETCH_1] = 928 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 929 pc->fetch_count[CISS_SG_FETCH_2] = 930 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 931 pc->fetch_count[CISS_SG_FETCH_4] = 932 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 933 pc->fetch_count[CISS_SG_FETCH_8] = 934 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 935 pc->fetch_count[CISS_SG_FETCH_16] = 936 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 937 pc->fetch_count[CISS_SG_FETCH_32] = 938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 939 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 940 941 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 942 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 943 pc->rq_bank_hi = 0; 944 pc->rq_bank_lo = 0; 945 pc->rq[0].rq_addr_hi = 0x0; 946 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 947 948 return(0); 949 } 950 951 /************************************************************************ 952 * Wait for the adapter to come ready. 953 */ 954 static int 955 ciss_wait_adapter(struct ciss_softc *sc) 956 { 957 int i; 958 959 debug_called(1); 960 961 /* 962 * Wait for the adapter to come ready. 963 */ 964 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 965 ciss_printf(sc, "waiting for adapter to come ready...\n"); 966 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 967 DELAY(1000000); /* one second */ 968 if (i > 30) { 969 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 970 return(EIO); 971 } 972 } 973 } 974 return(0); 975 } 976 977 /************************************************************************ 978 * Flush the adapter cache. 979 */ 980 static int 981 ciss_flush_adapter(struct ciss_softc *sc) 982 { 983 struct ciss_request *cr; 984 struct ciss_bmic_flush_cache *cbfc; 985 int error, command_status; 986 987 debug_called(1); 988 989 cr = NULL; 990 cbfc = NULL; 991 992 /* 993 * Build a BMIC request to flush the cache. We don't disable 994 * it, as we may be going to do more I/O (eg. we are emulating 995 * the Synchronise Cache command). 996 */ 997 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 998 error = ENOMEM; 999 goto out; 1000 } 1001 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1002 (void **)&cbfc, sizeof(*cbfc))) != 0) 1003 goto out; 1004 1005 /* 1006 * Submit the request and wait for it to complete. 1007 */ 1008 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1009 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1010 goto out; 1011 } 1012 1013 /* 1014 * Check response. 1015 */ 1016 ciss_report_request(cr, &command_status, NULL); 1017 switch(command_status) { 1018 case CISS_CMD_STATUS_SUCCESS: 1019 break; 1020 default: 1021 ciss_printf(sc, "error flushing cache (%s)\n", 1022 ciss_name_command_status(command_status)); 1023 error = EIO; 1024 goto out; 1025 } 1026 1027 out: 1028 if (cbfc != NULL) 1029 free(cbfc, CISS_MALLOC_CLASS); 1030 if (cr != NULL) 1031 ciss_release_request(cr); 1032 return(error); 1033 } 1034 1035 static void 1036 ciss_soft_reset(struct ciss_softc *sc) 1037 { 1038 struct ciss_request *cr = NULL; 1039 struct ciss_command *cc; 1040 int i, error = 0; 1041 1042 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1043 /* only reset proxy controllers */ 1044 if (sc->ciss_controllers[i].physical.bus == 0) 1045 continue; 1046 1047 if ((error = ciss_get_request(sc, &cr)) != 0) 1048 break; 1049 1050 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1051 NULL, 0)) != 0) 1052 break; 1053 1054 cc = cr->cr_cc; 1055 cc->header.address = sc->ciss_controllers[i]; 1056 1057 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1058 break; 1059 1060 ciss_release_request(cr); 1061 } 1062 1063 if (error) 1064 ciss_printf(sc, "error resetting controller (%d)\n", error); 1065 1066 if (cr != NULL) 1067 ciss_release_request(cr); 1068 } 1069 1070 /************************************************************************ 1071 * Allocate memory for the adapter command structures, initialise 1072 * the request structures. 1073 * 1074 * Note that the entire set of commands are allocated in a single 1075 * contiguous slab. 1076 */ 1077 static int 1078 ciss_init_requests(struct ciss_softc *sc) 1079 { 1080 struct ciss_request *cr; 1081 int i; 1082 1083 debug_called(1); 1084 1085 if (bootverbose) 1086 ciss_printf(sc, "using %d of %d available commands\n", 1087 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1088 1089 /* 1090 * Create the DMA tag for commands. 1091 */ 1092 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1093 32, 0, /* alignment, boundary */ 1094 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1095 BUS_SPACE_MAXADDR, /* highaddr */ 1096 NULL, NULL, /* filter, filterarg */ 1097 CISS_COMMAND_ALLOC_SIZE * 1098 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1099 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1100 0, /* flags */ 1101 NULL, NULL, /* lockfunc, lockarg */ 1102 &sc->ciss_command_dmat)) { 1103 ciss_printf(sc, "can't allocate command DMA tag\n"); 1104 return(ENOMEM); 1105 } 1106 /* 1107 * Allocate memory and make it available for DMA. 1108 */ 1109 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1110 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1111 ciss_printf(sc, "can't allocate command memory\n"); 1112 return(ENOMEM); 1113 } 1114 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1115 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1116 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1117 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1118 1119 /* 1120 * Set up the request and command structures, push requests onto 1121 * the free queue. 1122 */ 1123 for (i = 1; i < sc->ciss_max_requests; i++) { 1124 cr = &sc->ciss_request[i]; 1125 cr->cr_sc = sc; 1126 cr->cr_tag = i; 1127 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1128 CISS_COMMAND_ALLOC_SIZE * i); 1129 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1130 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1131 ciss_enqueue_free(cr); 1132 } 1133 return(0); 1134 } 1135 1136 static void 1137 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1138 { 1139 uint32_t *addr; 1140 1141 addr = arg; 1142 *addr = segs[0].ds_addr; 1143 } 1144 1145 /************************************************************************ 1146 * Identify the adapter, print some information about it. 1147 */ 1148 static int 1149 ciss_identify_adapter(struct ciss_softc *sc) 1150 { 1151 struct ciss_request *cr; 1152 int error, command_status; 1153 1154 debug_called(1); 1155 1156 cr = NULL; 1157 1158 /* 1159 * Get a request, allocate storage for the adapter data. 1160 */ 1161 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1162 (void **)&sc->ciss_id, 1163 sizeof(*sc->ciss_id))) != 0) 1164 goto out; 1165 1166 /* 1167 * Submit the request and wait for it to complete. 1168 */ 1169 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1170 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1171 goto out; 1172 } 1173 1174 /* 1175 * Check response. 1176 */ 1177 ciss_report_request(cr, &command_status, NULL); 1178 switch(command_status) { 1179 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1180 break; 1181 case CISS_CMD_STATUS_DATA_UNDERRUN: 1182 case CISS_CMD_STATUS_DATA_OVERRUN: 1183 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1184 default: 1185 ciss_printf(sc, "error reading adapter information (%s)\n", 1186 ciss_name_command_status(command_status)); 1187 error = EIO; 1188 goto out; 1189 } 1190 1191 /* sanity-check reply */ 1192 if (!sc->ciss_id->big_map_supported) { 1193 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1194 error = ENXIO; 1195 goto out; 1196 } 1197 1198 #if 0 1199 /* XXX later revisions may not need this */ 1200 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1201 #endif 1202 1203 /* XXX only really required for old 5300 adapters? */ 1204 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1205 1206 /* print information */ 1207 if (bootverbose) { 1208 #if 0 /* XXX proxy volumes??? */ 1209 ciss_printf(sc, " %d logical drive%s configured\n", 1210 sc->ciss_id->configured_logical_drives, 1211 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1212 #endif 1213 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1214 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1215 1216 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1217 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1218 ciss_printf(sc, " supported I/O methods 0x%b\n", 1219 sc->ciss_cfg->supported_methods, 1220 "\20\1READY\2simple\3performant\4MEMQ\n"); 1221 ciss_printf(sc, " active I/O method 0x%b\n", 1222 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1223 ciss_printf(sc, " 4G page base 0x%08x\n", 1224 sc->ciss_cfg->command_physlimit); 1225 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1226 sc->ciss_cfg->interrupt_coalesce_delay); 1227 ciss_printf(sc, " interrupt coalesce count %d\n", 1228 sc->ciss_cfg->interrupt_coalesce_count); 1229 ciss_printf(sc, " max outstanding commands %d\n", 1230 sc->ciss_cfg->max_outstanding_commands); 1231 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1232 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1233 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1234 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1235 } 1236 1237 out: 1238 if (error) { 1239 if (sc->ciss_id != NULL) { 1240 free(sc->ciss_id, CISS_MALLOC_CLASS); 1241 sc->ciss_id = NULL; 1242 } 1243 } 1244 if (cr != NULL) 1245 ciss_release_request(cr); 1246 return(error); 1247 } 1248 1249 /************************************************************************ 1250 * Helper routine for generating a list of logical and physical luns. 1251 */ 1252 static struct ciss_lun_report * 1253 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1254 { 1255 struct ciss_request *cr; 1256 struct ciss_command *cc; 1257 struct ciss_report_cdb *crc; 1258 struct ciss_lun_report *cll; 1259 int command_status; 1260 int report_size; 1261 int error = 0; 1262 1263 debug_called(1); 1264 1265 cr = NULL; 1266 cll = NULL; 1267 1268 /* 1269 * Get a request, allocate storage for the address list. 1270 */ 1271 if ((error = ciss_get_request(sc, &cr)) != 0) 1272 goto out; 1273 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1274 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1275 ciss_printf(sc, "can't allocate memory for lun report\n"); 1276 error = ENOMEM; 1277 goto out; 1278 } 1279 1280 /* 1281 * Build the Report Logical/Physical LUNs command. 1282 */ 1283 cc = cr->cr_cc; 1284 cr->cr_data = cll; 1285 cr->cr_length = report_size; 1286 cr->cr_flags = CISS_REQ_DATAIN; 1287 1288 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1289 cc->header.address.physical.bus = 0; 1290 cc->header.address.physical.target = 0; 1291 cc->cdb.cdb_length = sizeof(*crc); 1292 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1293 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1294 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1295 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1296 1297 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1298 bzero(crc, sizeof(*crc)); 1299 crc->opcode = opcode; 1300 crc->length = htonl(report_size); /* big-endian field */ 1301 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1302 1303 /* 1304 * Submit the request and wait for it to complete. (timeout 1305 * here should be much greater than above) 1306 */ 1307 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1308 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1309 goto out; 1310 } 1311 1312 /* 1313 * Check response. Note that data over/underrun is OK. 1314 */ 1315 ciss_report_request(cr, &command_status, NULL); 1316 switch(command_status) { 1317 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1318 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1319 break; 1320 case CISS_CMD_STATUS_DATA_OVERRUN: 1321 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1322 CISS_MAX_LOGICAL); 1323 break; 1324 default: 1325 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1326 ciss_name_command_status(command_status)); 1327 error = EIO; 1328 goto out; 1329 } 1330 ciss_release_request(cr); 1331 cr = NULL; 1332 1333 out: 1334 if (cr != NULL) 1335 ciss_release_request(cr); 1336 if (error && cll != NULL) { 1337 free(cll, CISS_MALLOC_CLASS); 1338 cll = NULL; 1339 } 1340 return(cll); 1341 } 1342 1343 /************************************************************************ 1344 * Find logical drives on the adapter. 1345 */ 1346 static int 1347 ciss_init_logical(struct ciss_softc *sc) 1348 { 1349 struct ciss_lun_report *cll; 1350 int error = 0, i, j; 1351 int ndrives; 1352 1353 debug_called(1); 1354 1355 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1356 CISS_MAX_LOGICAL); 1357 if (cll == NULL) { 1358 error = ENXIO; 1359 goto out; 1360 } 1361 1362 /* sanity-check reply */ 1363 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1364 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1365 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1366 ndrives, CISS_MAX_LOGICAL); 1367 error = ENXIO; 1368 goto out; 1369 } 1370 1371 /* 1372 * Save logical drive information. 1373 */ 1374 if (bootverbose) { 1375 ciss_printf(sc, "%d logical drive%s\n", 1376 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1377 } 1378 1379 sc->ciss_logical = 1380 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1381 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1382 if (sc->ciss_logical == NULL) { 1383 error = ENXIO; 1384 goto out; 1385 } 1386 1387 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1388 sc->ciss_logical[i] = 1389 malloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1390 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1391 if (sc->ciss_logical[i] == NULL) { 1392 error = ENXIO; 1393 goto out; 1394 } 1395 1396 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1397 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1398 } 1399 1400 1401 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1402 if (i < ndrives) { 1403 struct ciss_ldrive *ld; 1404 int bus, target; 1405 1406 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1407 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1408 ld = &sc->ciss_logical[bus][target]; 1409 1410 ld->cl_address = cll->lun[i]; 1411 ld->cl_controller = &sc->ciss_controllers[bus]; 1412 if (ciss_identify_logical(sc, ld) != 0) 1413 continue; 1414 /* 1415 * If the drive has had media exchanged, we should bring it online. 1416 */ 1417 if (ld->cl_lstatus->media_exchanged) 1418 ciss_accept_media(sc, ld); 1419 1420 } 1421 } 1422 1423 out: 1424 if (cll != NULL) 1425 free(cll, CISS_MALLOC_CLASS); 1426 return(error); 1427 } 1428 1429 static int 1430 ciss_init_physical(struct ciss_softc *sc) 1431 { 1432 struct ciss_lun_report *cll; 1433 int error = 0, i; 1434 int nphys; 1435 int bus, target; 1436 1437 debug_called(1); 1438 1439 bus = 0; 1440 target = 0; 1441 1442 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1443 CISS_MAX_PHYSICAL); 1444 if (cll == NULL) { 1445 error = ENXIO; 1446 goto out; 1447 } 1448 1449 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1450 1451 if (bootverbose) { 1452 ciss_printf(sc, "%d physical device%s\n", 1453 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1454 } 1455 1456 /* 1457 * Figure out the bus mapping. 1458 * Logical buses include both the local logical bus for local arrays and 1459 * proxy buses for remote arrays. Physical buses are numbered by the 1460 * controller and represent physical buses that hold physical devices. 1461 * We shift these bus numbers so that everything fits into a single flat 1462 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1463 * numbers, and the physical bus numbers are shifted to be above that. 1464 * This results in the various driver arrays being indexed as follows: 1465 * 1466 * ciss_controllers[] - indexed by logical bus 1467 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1468 * being shifted by 32. 1469 * ciss_logical[][] - indexed by logical bus 1470 * ciss_physical[][] - indexed by physical bus 1471 * 1472 * XXX This is getting more and more hackish. CISS really doesn't play 1473 * well with a standard SCSI model; devices are addressed via magic 1474 * cookies, not via b/t/l addresses. Since there is no way to store 1475 * the cookie in the CAM device object, we have to keep these lookup 1476 * tables handy so that the devices can be found quickly at the cost 1477 * of wasting memory and having a convoluted lookup scheme. This 1478 * driver should probably be converted to block interface. 1479 */ 1480 /* 1481 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1482 * controller. A proxy controller is another physical controller 1483 * behind the primary PCI controller. We need to know about this 1484 * so that BMIC commands can be properly targeted. There can be 1485 * proxy controllers attached to a single PCI controller, so 1486 * find the highest numbered one so the array can be properly 1487 * sized. 1488 */ 1489 sc->ciss_max_logical_bus = 1; 1490 for (i = 0; i < nphys; i++) { 1491 if (cll->lun[i].physical.extra_address == 0) { 1492 bus = cll->lun[i].physical.bus; 1493 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1494 } else { 1495 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1496 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1497 } 1498 } 1499 1500 sc->ciss_controllers = 1501 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1502 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1503 1504 if (sc->ciss_controllers == NULL) { 1505 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1506 error = ENOMEM; 1507 goto out; 1508 } 1509 1510 /* setup a map of controller addresses */ 1511 for (i = 0; i < nphys; i++) { 1512 if (cll->lun[i].physical.extra_address == 0) { 1513 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1514 } 1515 } 1516 1517 sc->ciss_physical = 1518 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1519 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1520 if (sc->ciss_physical == NULL) { 1521 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1522 error = ENOMEM; 1523 goto out; 1524 } 1525 1526 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1527 sc->ciss_physical[i] = 1528 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1529 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1530 if (sc->ciss_physical[i] == NULL) { 1531 ciss_printf(sc, "Could not allocate memory for target map\n"); 1532 error = ENOMEM; 1533 goto out; 1534 } 1535 } 1536 1537 ciss_filter_physical(sc, cll); 1538 1539 out: 1540 if (cll != NULL) 1541 free(cll, CISS_MALLOC_CLASS); 1542 1543 return(error); 1544 } 1545 1546 static int 1547 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1548 { 1549 u_int32_t ea; 1550 int i, nphys; 1551 int bus, target; 1552 1553 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1554 for (i = 0; i < nphys; i++) { 1555 if (cll->lun[i].physical.extra_address == 0) 1556 continue; 1557 1558 /* 1559 * Filter out devices that we don't want. Level 3 LUNs could 1560 * probably be supported, but the docs don't give enough of a 1561 * hint to know how. 1562 * 1563 * The mode field of the physical address is likely set to have 1564 * hard disks masked out. Honor it unless the user has overridden 1565 * us with the tunable. We also munge the inquiry data for these 1566 * disks so that they only show up as passthrough devices. Keeping 1567 * them visible in this fashion is useful for doing things like 1568 * flashing firmware. 1569 */ 1570 ea = cll->lun[i].physical.extra_address; 1571 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1572 (CISS_EXTRA_MODE2(ea) == 0x3)) 1573 continue; 1574 if ((ciss_expose_hidden_physical == 0) && 1575 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1576 continue; 1577 1578 /* 1579 * Note: CISS firmware numbers physical busses starting at '1', not 1580 * '0'. This numbering is internal to the firmware and is only 1581 * used as a hint here. 1582 */ 1583 bus = CISS_EXTRA_BUS2(ea) - 1; 1584 target = CISS_EXTRA_TARGET2(ea); 1585 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1586 sc->ciss_physical[bus][target].cp_online = 1; 1587 } 1588 1589 return (0); 1590 } 1591 1592 static int 1593 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1594 { 1595 struct ciss_request *cr; 1596 struct ciss_command *cc; 1597 struct scsi_inquiry *inq; 1598 int error; 1599 int command_status; 1600 1601 cr = NULL; 1602 1603 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1604 1605 if ((error = ciss_get_request(sc, &cr)) != 0) 1606 goto out; 1607 1608 cc = cr->cr_cc; 1609 cr->cr_data = &ld->cl_geometry; 1610 cr->cr_length = sizeof(ld->cl_geometry); 1611 cr->cr_flags = CISS_REQ_DATAIN; 1612 1613 cc->header.address = ld->cl_address; 1614 cc->cdb.cdb_length = 6; 1615 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1616 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1617 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1618 cc->cdb.timeout = 30; 1619 1620 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1621 inq->opcode = INQUIRY; 1622 inq->byte2 = SI_EVPD; 1623 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1624 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1625 1626 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1627 ciss_printf(sc, "error getting geometry (%d)\n", error); 1628 goto out; 1629 } 1630 1631 ciss_report_request(cr, &command_status, NULL); 1632 switch(command_status) { 1633 case CISS_CMD_STATUS_SUCCESS: 1634 case CISS_CMD_STATUS_DATA_UNDERRUN: 1635 break; 1636 case CISS_CMD_STATUS_DATA_OVERRUN: 1637 ciss_printf(sc, "WARNING: Data overrun\n"); 1638 break; 1639 default: 1640 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1641 ciss_name_command_status(command_status)); 1642 break; 1643 } 1644 1645 out: 1646 if (cr != NULL) 1647 ciss_release_request(cr); 1648 return(error); 1649 } 1650 /************************************************************************ 1651 * Identify a logical drive, initialise state related to it. 1652 */ 1653 static int 1654 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1655 { 1656 struct ciss_request *cr; 1657 struct ciss_command *cc; 1658 struct ciss_bmic_cdb *cbc; 1659 int error, command_status; 1660 1661 debug_called(1); 1662 1663 cr = NULL; 1664 1665 /* 1666 * Build a BMIC request to fetch the drive ID. 1667 */ 1668 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1669 (void **)&ld->cl_ldrive, 1670 sizeof(*ld->cl_ldrive))) != 0) 1671 goto out; 1672 cc = cr->cr_cc; 1673 cc->header.address = *ld->cl_controller; /* target controller */ 1674 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1675 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1676 1677 /* 1678 * Submit the request and wait for it to complete. 1679 */ 1680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1681 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1682 goto out; 1683 } 1684 1685 /* 1686 * Check response. 1687 */ 1688 ciss_report_request(cr, &command_status, NULL); 1689 switch(command_status) { 1690 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1691 break; 1692 case CISS_CMD_STATUS_DATA_UNDERRUN: 1693 case CISS_CMD_STATUS_DATA_OVERRUN: 1694 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1695 default: 1696 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1697 ciss_name_command_status(command_status)); 1698 error = EIO; 1699 goto out; 1700 } 1701 ciss_release_request(cr); 1702 cr = NULL; 1703 1704 /* 1705 * Build a CISS BMIC command to get the logical drive status. 1706 */ 1707 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1708 goto out; 1709 1710 /* 1711 * Get the logical drive geometry. 1712 */ 1713 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1714 goto out; 1715 1716 /* 1717 * Print the drive's basic characteristics. 1718 */ 1719 if (bootverbose) { 1720 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1721 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1722 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1723 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1724 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1725 ld->cl_ldrive->block_size)); 1726 1727 ciss_print_ldrive(sc, ld); 1728 } 1729 out: 1730 if (error != 0) { 1731 /* make the drive not-exist */ 1732 ld->cl_status = CISS_LD_NONEXISTENT; 1733 if (ld->cl_ldrive != NULL) { 1734 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1735 ld->cl_ldrive = NULL; 1736 } 1737 if (ld->cl_lstatus != NULL) { 1738 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1739 ld->cl_lstatus = NULL; 1740 } 1741 } 1742 if (cr != NULL) 1743 ciss_release_request(cr); 1744 1745 return(error); 1746 } 1747 1748 /************************************************************************ 1749 * Get status for a logical drive. 1750 * 1751 * XXX should we also do this in response to Test Unit Ready? 1752 */ 1753 static int 1754 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1755 { 1756 struct ciss_request *cr; 1757 struct ciss_command *cc; 1758 struct ciss_bmic_cdb *cbc; 1759 int error, command_status; 1760 1761 /* 1762 * Build a CISS BMIC command to get the logical drive status. 1763 */ 1764 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1765 (void **)&ld->cl_lstatus, 1766 sizeof(*ld->cl_lstatus))) != 0) 1767 goto out; 1768 cc = cr->cr_cc; 1769 cc->header.address = *ld->cl_controller; /* target controller */ 1770 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1771 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1772 1773 /* 1774 * Submit the request and wait for it to complete. 1775 */ 1776 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1777 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1778 goto out; 1779 } 1780 1781 /* 1782 * Check response. 1783 */ 1784 ciss_report_request(cr, &command_status, NULL); 1785 switch(command_status) { 1786 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1787 break; 1788 case CISS_CMD_STATUS_DATA_UNDERRUN: 1789 case CISS_CMD_STATUS_DATA_OVERRUN: 1790 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1791 default: 1792 ciss_printf(sc, "error reading logical drive status (%s)\n", 1793 ciss_name_command_status(command_status)); 1794 error = EIO; 1795 goto out; 1796 } 1797 1798 /* 1799 * Set the drive's summary status based on the returned status. 1800 * 1801 * XXX testing shows that a failed JBOD drive comes back at next 1802 * boot in "queued for expansion" mode. WTF? 1803 */ 1804 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1805 1806 out: 1807 if (cr != NULL) 1808 ciss_release_request(cr); 1809 return(error); 1810 } 1811 1812 /************************************************************************ 1813 * Notify the adapter of a config update. 1814 */ 1815 static int 1816 ciss_update_config(struct ciss_softc *sc) 1817 { 1818 int i; 1819 1820 debug_called(1); 1821 1822 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1823 for (i = 0; i < 1000; i++) { 1824 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1825 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1826 return(0); 1827 } 1828 DELAY(1000); 1829 } 1830 return(1); 1831 } 1832 1833 /************************************************************************ 1834 * Accept new media into a logical drive. 1835 * 1836 * XXX The drive has previously been offline; it would be good if we 1837 * could make sure it's not open right now. 1838 */ 1839 static int 1840 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1841 { 1842 struct ciss_request *cr; 1843 struct ciss_command *cc; 1844 struct ciss_bmic_cdb *cbc; 1845 int command_status; 1846 int error = 0, ldrive; 1847 1848 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1849 1850 debug(0, "bringing logical drive %d back online"); 1851 1852 /* 1853 * Build a CISS BMIC command to bring the drive back online. 1854 */ 1855 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1856 NULL, 0)) != 0) 1857 goto out; 1858 cc = cr->cr_cc; 1859 cc->header.address = *ld->cl_controller; /* target controller */ 1860 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1861 cbc->log_drive = ldrive; 1862 1863 /* 1864 * Submit the request and wait for it to complete. 1865 */ 1866 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1867 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1868 goto out; 1869 } 1870 1871 /* 1872 * Check response. 1873 */ 1874 ciss_report_request(cr, &command_status, NULL); 1875 switch(command_status) { 1876 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1877 /* we should get a logical drive status changed event here */ 1878 break; 1879 default: 1880 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1881 ciss_name_command_status(command_status)); 1882 break; 1883 } 1884 1885 out: 1886 if (cr != NULL) 1887 ciss_release_request(cr); 1888 return(error); 1889 } 1890 1891 /************************************************************************ 1892 * Release adapter resources. 1893 */ 1894 static void 1895 ciss_free(struct ciss_softc *sc) 1896 { 1897 struct ciss_request *cr; 1898 int i, j; 1899 1900 debug_called(1); 1901 1902 /* we're going away */ 1903 sc->ciss_flags |= CISS_FLAG_ABORTING; 1904 1905 /* terminate the periodic heartbeat routine */ 1906 callout_stop(&sc->ciss_periodic); 1907 1908 /* cancel the Event Notify chain */ 1909 ciss_notify_abort(sc); 1910 1911 ciss_kill_notify_thread(sc); 1912 1913 /* disconnect from CAM */ 1914 if (sc->ciss_cam_sim) { 1915 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1916 if (sc->ciss_cam_sim[i]) { 1917 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1918 cam_sim_free(sc->ciss_cam_sim[i], 0); 1919 } 1920 } 1921 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1922 CISS_PHYSICAL_BASE; i++) { 1923 if (sc->ciss_cam_sim[i]) { 1924 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1925 cam_sim_free(sc->ciss_cam_sim[i], 0); 1926 } 1927 } 1928 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1929 } 1930 if (sc->ciss_cam_devq) 1931 cam_simq_free(sc->ciss_cam_devq); 1932 1933 /* remove the control device */ 1934 mtx_unlock(&sc->ciss_mtx); 1935 if (sc->ciss_dev_t != NULL) 1936 destroy_dev(sc->ciss_dev_t); 1937 1938 /* Final cleanup of the callout. */ 1939 callout_drain(&sc->ciss_periodic); 1940 mtx_destroy(&sc->ciss_mtx); 1941 1942 /* free the controller data */ 1943 if (sc->ciss_id != NULL) 1944 free(sc->ciss_id, CISS_MALLOC_CLASS); 1945 1946 /* release I/O resources */ 1947 if (sc->ciss_regs_resource != NULL) 1948 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1949 sc->ciss_regs_rid, sc->ciss_regs_resource); 1950 if (sc->ciss_cfg_resource != NULL) 1951 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1952 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1953 if (sc->ciss_intr != NULL) 1954 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1955 if (sc->ciss_irq_resource != NULL) 1956 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1957 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1958 if (sc->ciss_msi) 1959 pci_release_msi(sc->ciss_dev); 1960 1961 while ((cr = ciss_dequeue_free(sc)) != NULL) 1962 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1963 if (sc->ciss_buffer_dmat) 1964 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1965 1966 /* destroy command memory and DMA tag */ 1967 if (sc->ciss_command != NULL) { 1968 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1969 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1970 } 1971 if (sc->ciss_command_dmat) 1972 bus_dma_tag_destroy(sc->ciss_command_dmat); 1973 1974 if (sc->ciss_reply) { 1975 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1976 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1977 } 1978 if (sc->ciss_reply_dmat) 1979 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1980 1981 /* destroy DMA tags */ 1982 if (sc->ciss_parent_dmat) 1983 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1984 if (sc->ciss_logical) { 1985 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1986 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1987 if (sc->ciss_logical[i][j].cl_ldrive) 1988 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1989 if (sc->ciss_logical[i][j].cl_lstatus) 1990 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1991 } 1992 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1993 } 1994 free(sc->ciss_logical, CISS_MALLOC_CLASS); 1995 } 1996 1997 if (sc->ciss_physical) { 1998 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1999 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2000 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2001 } 2002 2003 if (sc->ciss_controllers) 2004 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2005 2006 } 2007 2008 /************************************************************************ 2009 * Give a command to the adapter. 2010 * 2011 * Note that this uses the simple transport layer directly. If we 2012 * want to add support for other layers, we'll need a switch of some 2013 * sort. 2014 * 2015 * Note that the simple transport layer has no way of refusing a 2016 * command; we only have as many request structures as the adapter 2017 * supports commands, so we don't have to check (this presumes that 2018 * the adapter can handle commands as fast as we throw them at it). 2019 */ 2020 static int 2021 ciss_start(struct ciss_request *cr) 2022 { 2023 struct ciss_command *cc; /* XXX debugging only */ 2024 int error; 2025 2026 cc = cr->cr_cc; 2027 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2028 2029 /* 2030 * Map the request's data. 2031 */ 2032 if ((error = ciss_map_request(cr))) 2033 return(error); 2034 2035 #if 0 2036 ciss_print_request(cr); 2037 #endif 2038 2039 return(0); 2040 } 2041 2042 /************************************************************************ 2043 * Fetch completed request(s) from the adapter, queue them for 2044 * completion handling. 2045 * 2046 * Note that this uses the simple transport layer directly. If we 2047 * want to add support for other layers, we'll need a switch of some 2048 * sort. 2049 * 2050 * Note that the simple transport mechanism does not require any 2051 * reentrancy protection; the OPQ read is atomic. If there is a 2052 * chance of a race with something else that might move the request 2053 * off the busy list, then we will have to lock against that 2054 * (eg. timeouts, etc.) 2055 */ 2056 static void 2057 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2058 { 2059 struct ciss_request *cr; 2060 struct ciss_command *cc; 2061 u_int32_t tag, index; 2062 2063 debug_called(3); 2064 2065 /* 2066 * Loop quickly taking requests from the adapter and moving them 2067 * to the completed queue. 2068 */ 2069 for (;;) { 2070 2071 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2072 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2073 break; 2074 index = tag >> 2; 2075 debug(2, "completed command %d%s", index, 2076 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2077 if (index >= sc->ciss_max_requests) { 2078 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2079 continue; 2080 } 2081 cr = &(sc->ciss_request[index]); 2082 cc = cr->cr_cc; 2083 cc->header.host_tag = tag; /* not updated by adapter */ 2084 ciss_enqueue_complete(cr, qh); 2085 } 2086 2087 } 2088 2089 static void 2090 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2091 { 2092 struct ciss_request *cr; 2093 struct ciss_command *cc; 2094 u_int32_t tag, index; 2095 2096 debug_called(3); 2097 2098 /* 2099 * Loop quickly taking requests from the adapter and moving them 2100 * to the completed queue. 2101 */ 2102 for (;;) { 2103 tag = sc->ciss_reply[sc->ciss_rqidx]; 2104 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2105 break; 2106 index = tag >> 2; 2107 debug(2, "completed command %d%s\n", index, 2108 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2109 if (index < sc->ciss_max_requests) { 2110 cr = &(sc->ciss_request[index]); 2111 cc = cr->cr_cc; 2112 cc->header.host_tag = tag; /* not updated by adapter */ 2113 ciss_enqueue_complete(cr, qh); 2114 } else { 2115 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2116 } 2117 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2118 sc->ciss_rqidx = 0; 2119 sc->ciss_cycle ^= 1; 2120 } 2121 } 2122 2123 } 2124 2125 /************************************************************************ 2126 * Take an interrupt from the adapter. 2127 */ 2128 static void 2129 ciss_intr(void *arg) 2130 { 2131 cr_qhead_t qh; 2132 struct ciss_softc *sc = (struct ciss_softc *)arg; 2133 2134 /* 2135 * The only interrupt we recognise indicates that there are 2136 * entries in the outbound post queue. 2137 */ 2138 STAILQ_INIT(&qh); 2139 ciss_done(sc, &qh); 2140 mtx_lock(&sc->ciss_mtx); 2141 ciss_complete(sc, &qh); 2142 mtx_unlock(&sc->ciss_mtx); 2143 } 2144 2145 static void 2146 ciss_perf_intr(void *arg) 2147 { 2148 struct ciss_softc *sc = (struct ciss_softc *)arg; 2149 2150 /* Clear the interrupt and flush the bridges. Docs say that the flush 2151 * needs to be done twice, which doesn't seem right. 2152 */ 2153 CISS_TL_PERF_CLEAR_INT(sc); 2154 CISS_TL_PERF_FLUSH_INT(sc); 2155 2156 ciss_perf_msi_intr(sc); 2157 } 2158 2159 static void 2160 ciss_perf_msi_intr(void *arg) 2161 { 2162 cr_qhead_t qh; 2163 struct ciss_softc *sc = (struct ciss_softc *)arg; 2164 2165 STAILQ_INIT(&qh); 2166 ciss_perf_done(sc, &qh); 2167 mtx_lock(&sc->ciss_mtx); 2168 ciss_complete(sc, &qh); 2169 mtx_unlock(&sc->ciss_mtx); 2170 } 2171 2172 2173 /************************************************************************ 2174 * Process completed requests. 2175 * 2176 * Requests can be completed in three fashions: 2177 * 2178 * - by invoking a callback function (cr_complete is non-null) 2179 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2180 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2181 */ 2182 static void 2183 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2184 { 2185 struct ciss_request *cr; 2186 2187 debug_called(2); 2188 2189 /* 2190 * Loop taking requests off the completed queue and performing 2191 * completion processing on them. 2192 */ 2193 for (;;) { 2194 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2195 break; 2196 ciss_unmap_request(cr); 2197 2198 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2199 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2200 cr->cr_flags &= ~CISS_REQ_BUSY; 2201 2202 /* 2203 * If the request has a callback, invoke it. 2204 */ 2205 if (cr->cr_complete != NULL) { 2206 cr->cr_complete(cr); 2207 continue; 2208 } 2209 2210 /* 2211 * If someone is sleeping on this request, wake them up. 2212 */ 2213 if (cr->cr_flags & CISS_REQ_SLEEP) { 2214 cr->cr_flags &= ~CISS_REQ_SLEEP; 2215 wakeup(cr); 2216 continue; 2217 } 2218 2219 /* 2220 * If someone is polling this request for completion, signal. 2221 */ 2222 if (cr->cr_flags & CISS_REQ_POLL) { 2223 cr->cr_flags &= ~CISS_REQ_POLL; 2224 continue; 2225 } 2226 2227 /* 2228 * Give up and throw the request back on the free queue. This 2229 * should never happen; resources will probably be lost. 2230 */ 2231 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2232 ciss_enqueue_free(cr); 2233 } 2234 } 2235 2236 /************************************************************************ 2237 * Report on the completion status of a request, and pass back SCSI 2238 * and command status values. 2239 */ 2240 static int 2241 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2242 { 2243 struct ciss_command *cc; 2244 struct ciss_error_info *ce; 2245 2246 debug_called(2); 2247 2248 cc = cr->cr_cc; 2249 ce = (struct ciss_error_info *)&(cc->sg[0]); 2250 2251 /* 2252 * We don't consider data under/overrun an error for the Report 2253 * Logical/Physical LUNs commands. 2254 */ 2255 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2256 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2257 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2258 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2259 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2260 (cc->cdb.cdb[0] == INQUIRY))) { 2261 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2262 debug(2, "ignoring irrelevant under/overrun error"); 2263 } 2264 2265 /* 2266 * Check the command's error bit, if clear, there's no status and 2267 * everything is OK. 2268 */ 2269 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2270 if (scsi_status != NULL) 2271 *scsi_status = SCSI_STATUS_OK; 2272 if (command_status != NULL) 2273 *command_status = CISS_CMD_STATUS_SUCCESS; 2274 return(0); 2275 } else { 2276 if (command_status != NULL) 2277 *command_status = ce->command_status; 2278 if (scsi_status != NULL) { 2279 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2280 *scsi_status = ce->scsi_status; 2281 } else { 2282 *scsi_status = -1; 2283 } 2284 } 2285 if (bootverbose) 2286 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2287 ce->command_status, ciss_name_command_status(ce->command_status), 2288 ce->scsi_status); 2289 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2290 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2291 ce->additional_error_info.invalid_command.offense_size, 2292 ce->additional_error_info.invalid_command.offense_offset, 2293 ce->additional_error_info.invalid_command.offense_value, 2294 func); 2295 } 2296 } 2297 #if 0 2298 ciss_print_request(cr); 2299 #endif 2300 return(1); 2301 } 2302 2303 /************************************************************************ 2304 * Issue a request and don't return until it's completed. 2305 * 2306 * Depending on adapter status, we may poll or sleep waiting for 2307 * completion. 2308 */ 2309 static int 2310 ciss_synch_request(struct ciss_request *cr, int timeout) 2311 { 2312 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2313 return(ciss_wait_request(cr, timeout)); 2314 } else { 2315 return(ciss_poll_request(cr, timeout)); 2316 } 2317 } 2318 2319 /************************************************************************ 2320 * Issue a request and poll for completion. 2321 * 2322 * Timeout in milliseconds. 2323 */ 2324 static int 2325 ciss_poll_request(struct ciss_request *cr, int timeout) 2326 { 2327 cr_qhead_t qh; 2328 struct ciss_softc *sc; 2329 int error; 2330 2331 debug_called(2); 2332 2333 STAILQ_INIT(&qh); 2334 sc = cr->cr_sc; 2335 cr->cr_flags |= CISS_REQ_POLL; 2336 if ((error = ciss_start(cr)) != 0) 2337 return(error); 2338 2339 do { 2340 if (sc->ciss_perf) 2341 ciss_perf_done(sc, &qh); 2342 else 2343 ciss_done(sc, &qh); 2344 ciss_complete(sc, &qh); 2345 if (!(cr->cr_flags & CISS_REQ_POLL)) 2346 return(0); 2347 DELAY(1000); 2348 } while (timeout-- >= 0); 2349 return(EWOULDBLOCK); 2350 } 2351 2352 /************************************************************************ 2353 * Issue a request and sleep waiting for completion. 2354 * 2355 * Timeout in milliseconds. Note that a spurious wakeup will reset 2356 * the timeout. 2357 */ 2358 static int 2359 ciss_wait_request(struct ciss_request *cr, int timeout) 2360 { 2361 int error; 2362 2363 debug_called(2); 2364 2365 cr->cr_flags |= CISS_REQ_SLEEP; 2366 if ((error = ciss_start(cr)) != 0) 2367 return(error); 2368 2369 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2370 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2371 } 2372 return(error); 2373 } 2374 2375 #if 0 2376 /************************************************************************ 2377 * Abort a request. Note that a potential exists here to race the 2378 * request being completed; the caller must deal with this. 2379 */ 2380 static int 2381 ciss_abort_request(struct ciss_request *ar) 2382 { 2383 struct ciss_request *cr; 2384 struct ciss_command *cc; 2385 struct ciss_message_cdb *cmc; 2386 int error; 2387 2388 debug_called(1); 2389 2390 /* get a request */ 2391 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2392 return(error); 2393 2394 /* build the abort command */ 2395 cc = cr->cr_cc; 2396 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2397 cc->header.address.physical.target = 0; 2398 cc->header.address.physical.bus = 0; 2399 cc->cdb.cdb_length = sizeof(*cmc); 2400 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2401 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2402 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2403 cc->cdb.timeout = 30; 2404 2405 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2406 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2407 cmc->type = CISS_MESSAGE_ABORT_TASK; 2408 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2409 2410 /* 2411 * Send the request and wait for a response. If we believe we 2412 * aborted the request OK, clear the flag that indicates it's 2413 * running. 2414 */ 2415 error = ciss_synch_request(cr, 35 * 1000); 2416 if (!error) 2417 error = ciss_report_request(cr, NULL, NULL); 2418 ciss_release_request(cr); 2419 2420 return(error); 2421 } 2422 #endif 2423 2424 2425 /************************************************************************ 2426 * Fetch and initialise a request 2427 */ 2428 static int 2429 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2430 { 2431 struct ciss_request *cr; 2432 2433 debug_called(2); 2434 2435 /* 2436 * Get a request and clean it up. 2437 */ 2438 if ((cr = ciss_dequeue_free(sc)) == NULL) 2439 return(ENOMEM); 2440 2441 cr->cr_data = NULL; 2442 cr->cr_flags = 0; 2443 cr->cr_complete = NULL; 2444 cr->cr_private = NULL; 2445 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2446 2447 ciss_preen_command(cr); 2448 *crp = cr; 2449 return(0); 2450 } 2451 2452 static void 2453 ciss_preen_command(struct ciss_request *cr) 2454 { 2455 struct ciss_command *cc; 2456 u_int32_t cmdphys; 2457 2458 /* 2459 * Clean up the command structure. 2460 * 2461 * Note that we set up the error_info structure here, since the 2462 * length can be overwritten by any command. 2463 */ 2464 cc = cr->cr_cc; 2465 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2466 cc->header.sg_total = 0; 2467 cc->header.host_tag = cr->cr_tag << 2; 2468 cc->header.host_tag_zeroes = 0; 2469 cmdphys = cr->cr_ccphys; 2470 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2471 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2472 } 2473 2474 /************************************************************************ 2475 * Release a request to the free list. 2476 */ 2477 static void 2478 ciss_release_request(struct ciss_request *cr) 2479 { 2480 struct ciss_softc *sc; 2481 2482 debug_called(2); 2483 2484 sc = cr->cr_sc; 2485 2486 /* release the request to the free queue */ 2487 ciss_requeue_free(cr); 2488 } 2489 2490 /************************************************************************ 2491 * Allocate a request that will be used to send a BMIC command. Do some 2492 * of the common setup here to avoid duplicating it everywhere else. 2493 */ 2494 static int 2495 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2496 int opcode, void **bufp, size_t bufsize) 2497 { 2498 struct ciss_request *cr; 2499 struct ciss_command *cc; 2500 struct ciss_bmic_cdb *cbc; 2501 void *buf; 2502 int error; 2503 int dataout; 2504 2505 debug_called(2); 2506 2507 cr = NULL; 2508 buf = NULL; 2509 2510 /* 2511 * Get a request. 2512 */ 2513 if ((error = ciss_get_request(sc, &cr)) != 0) 2514 goto out; 2515 2516 /* 2517 * Allocate data storage if requested, determine the data direction. 2518 */ 2519 dataout = 0; 2520 if ((bufsize > 0) && (bufp != NULL)) { 2521 if (*bufp == NULL) { 2522 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2523 error = ENOMEM; 2524 goto out; 2525 } 2526 } else { 2527 buf = *bufp; 2528 dataout = 1; /* we are given a buffer, so we are writing */ 2529 } 2530 } 2531 2532 /* 2533 * Build a CISS BMIC command to get the logical drive ID. 2534 */ 2535 cr->cr_data = buf; 2536 cr->cr_length = bufsize; 2537 if (!dataout) 2538 cr->cr_flags = CISS_REQ_DATAIN; 2539 2540 cc = cr->cr_cc; 2541 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2542 cc->header.address.physical.bus = 0; 2543 cc->header.address.physical.target = 0; 2544 cc->cdb.cdb_length = sizeof(*cbc); 2545 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2546 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2547 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2548 cc->cdb.timeout = 0; 2549 2550 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2551 bzero(cbc, sizeof(*cbc)); 2552 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2553 cbc->bmic_opcode = opcode; 2554 cbc->size = htons((u_int16_t)bufsize); 2555 2556 out: 2557 if (error) { 2558 if (cr != NULL) 2559 ciss_release_request(cr); 2560 } else { 2561 *crp = cr; 2562 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2563 *bufp = buf; 2564 } 2565 return(error); 2566 } 2567 2568 /************************************************************************ 2569 * Handle a command passed in from userspace. 2570 */ 2571 static int 2572 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2573 { 2574 struct ciss_request *cr; 2575 struct ciss_command *cc; 2576 struct ciss_error_info *ce; 2577 int error = 0; 2578 2579 debug_called(1); 2580 2581 cr = NULL; 2582 2583 /* 2584 * Get a request. 2585 */ 2586 while (ciss_get_request(sc, &cr) != 0) 2587 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2588 cc = cr->cr_cc; 2589 2590 /* 2591 * Allocate an in-kernel databuffer if required, copy in user data. 2592 */ 2593 mtx_unlock(&sc->ciss_mtx); 2594 cr->cr_length = ioc->buf_size; 2595 if (ioc->buf_size > 0) { 2596 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2597 error = ENOMEM; 2598 goto out_unlocked; 2599 } 2600 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2601 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2602 goto out_unlocked; 2603 } 2604 } 2605 2606 /* 2607 * Build the request based on the user command. 2608 */ 2609 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2610 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2611 2612 /* XXX anything else to populate here? */ 2613 mtx_lock(&sc->ciss_mtx); 2614 2615 /* 2616 * Run the command. 2617 */ 2618 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2619 debug(0, "request failed - %d", error); 2620 goto out; 2621 } 2622 2623 /* 2624 * Check to see if the command succeeded. 2625 */ 2626 ce = (struct ciss_error_info *)&(cc->sg[0]); 2627 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2628 bzero(ce, sizeof(*ce)); 2629 2630 /* 2631 * Copy the results back to the user. 2632 */ 2633 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2634 mtx_unlock(&sc->ciss_mtx); 2635 if ((ioc->buf_size > 0) && 2636 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2637 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2638 goto out_unlocked; 2639 } 2640 2641 /* done OK */ 2642 error = 0; 2643 2644 out_unlocked: 2645 mtx_lock(&sc->ciss_mtx); 2646 2647 out: 2648 if ((cr != NULL) && (cr->cr_data != NULL)) 2649 free(cr->cr_data, CISS_MALLOC_CLASS); 2650 if (cr != NULL) 2651 ciss_release_request(cr); 2652 return(error); 2653 } 2654 2655 /************************************************************************ 2656 * Map a request into bus-visible space, initialise the scatter/gather 2657 * list. 2658 */ 2659 static int 2660 ciss_map_request(struct ciss_request *cr) 2661 { 2662 struct ciss_softc *sc; 2663 int error = 0; 2664 2665 debug_called(2); 2666 2667 sc = cr->cr_sc; 2668 2669 /* check that mapping is necessary */ 2670 if (cr->cr_flags & CISS_REQ_MAPPED) 2671 return(0); 2672 2673 cr->cr_flags |= CISS_REQ_MAPPED; 2674 2675 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2676 BUS_DMASYNC_PREWRITE); 2677 2678 if (cr->cr_data != NULL) { 2679 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2680 cr->cr_data, cr->cr_length, 2681 ciss_request_map_helper, cr, 0); 2682 if (error != 0) 2683 return (error); 2684 } else { 2685 /* 2686 * Post the command to the adapter. 2687 */ 2688 cr->cr_sg_tag = CISS_SG_NONE; 2689 cr->cr_flags |= CISS_REQ_BUSY; 2690 if (sc->ciss_perf) 2691 CISS_TL_PERF_POST_CMD(sc, cr); 2692 else 2693 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2694 } 2695 2696 return(0); 2697 } 2698 2699 static void 2700 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2701 { 2702 struct ciss_command *cc; 2703 struct ciss_request *cr; 2704 struct ciss_softc *sc; 2705 int i; 2706 2707 debug_called(2); 2708 2709 cr = (struct ciss_request *)arg; 2710 sc = cr->cr_sc; 2711 cc = cr->cr_cc; 2712 2713 for (i = 0; i < nseg; i++) { 2714 cc->sg[i].address = segs[i].ds_addr; 2715 cc->sg[i].length = segs[i].ds_len; 2716 cc->sg[i].extension = 0; 2717 } 2718 /* we leave the s/g table entirely within the command */ 2719 cc->header.sg_in_list = nseg; 2720 cc->header.sg_total = nseg; 2721 2722 if (cr->cr_flags & CISS_REQ_DATAIN) 2723 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2724 if (cr->cr_flags & CISS_REQ_DATAOUT) 2725 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2726 2727 if (nseg == 0) 2728 cr->cr_sg_tag = CISS_SG_NONE; 2729 else if (nseg == 1) 2730 cr->cr_sg_tag = CISS_SG_1; 2731 else if (nseg == 2) 2732 cr->cr_sg_tag = CISS_SG_2; 2733 else if (nseg <= 4) 2734 cr->cr_sg_tag = CISS_SG_4; 2735 else if (nseg <= 8) 2736 cr->cr_sg_tag = CISS_SG_8; 2737 else if (nseg <= 16) 2738 cr->cr_sg_tag = CISS_SG_16; 2739 else if (nseg <= 32) 2740 cr->cr_sg_tag = CISS_SG_32; 2741 else 2742 cr->cr_sg_tag = CISS_SG_MAX; 2743 2744 /* 2745 * Post the command to the adapter. 2746 */ 2747 cr->cr_flags |= CISS_REQ_BUSY; 2748 if (sc->ciss_perf) 2749 CISS_TL_PERF_POST_CMD(sc, cr); 2750 else 2751 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2752 } 2753 2754 /************************************************************************ 2755 * Unmap a request from bus-visible space. 2756 */ 2757 static void 2758 ciss_unmap_request(struct ciss_request *cr) 2759 { 2760 struct ciss_softc *sc; 2761 2762 debug_called(2); 2763 2764 sc = cr->cr_sc; 2765 2766 /* check that unmapping is necessary */ 2767 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2768 return; 2769 2770 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2771 BUS_DMASYNC_POSTWRITE); 2772 2773 if (cr->cr_data == NULL) 2774 goto out; 2775 2776 if (cr->cr_flags & CISS_REQ_DATAIN) 2777 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2778 if (cr->cr_flags & CISS_REQ_DATAOUT) 2779 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2780 2781 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2782 out: 2783 cr->cr_flags &= ~CISS_REQ_MAPPED; 2784 } 2785 2786 /************************************************************************ 2787 * Attach the driver to CAM. 2788 * 2789 * We put all the logical drives on a single SCSI bus. 2790 */ 2791 static int 2792 ciss_cam_init(struct ciss_softc *sc) 2793 { 2794 int i, maxbus; 2795 2796 debug_called(1); 2797 2798 /* 2799 * Allocate a devq. We can reuse this for the masked physical 2800 * devices if we decide to export these as well. 2801 */ 2802 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2803 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2804 return(ENOMEM); 2805 } 2806 2807 /* 2808 * Create a SIM. 2809 * 2810 * This naturally wastes a bit of memory. The alternative is to allocate 2811 * and register each bus as it is found, and then track them on a linked 2812 * list. Unfortunately, the driver has a few places where it needs to 2813 * look up the SIM based solely on bus number, and it's unclear whether 2814 * a list traversal would work for these situations. 2815 */ 2816 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2817 CISS_PHYSICAL_BASE); 2818 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2819 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2820 if (sc->ciss_cam_sim == NULL) { 2821 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2822 return(ENOMEM); 2823 } 2824 2825 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2826 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2827 "ciss", sc, 2828 device_get_unit(sc->ciss_dev), 2829 &sc->ciss_mtx, 2830 2, 2831 sc->ciss_max_requests - 2, 2832 sc->ciss_cam_devq)) == NULL) { 2833 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2834 return(ENOMEM); 2835 } 2836 2837 /* 2838 * Register bus with this SIM. 2839 */ 2840 mtx_lock(&sc->ciss_mtx); 2841 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2842 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2843 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2844 mtx_unlock(&sc->ciss_mtx); 2845 return (ENXIO); 2846 } 2847 } 2848 mtx_unlock(&sc->ciss_mtx); 2849 } 2850 2851 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2852 CISS_PHYSICAL_BASE; i++) { 2853 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2854 "ciss", sc, 2855 device_get_unit(sc->ciss_dev), 2856 &sc->ciss_mtx, 1, 2857 sc->ciss_max_requests - 2, 2858 sc->ciss_cam_devq)) == NULL) { 2859 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2860 return (ENOMEM); 2861 } 2862 2863 mtx_lock(&sc->ciss_mtx); 2864 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2865 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2866 mtx_unlock(&sc->ciss_mtx); 2867 return (ENXIO); 2868 } 2869 mtx_unlock(&sc->ciss_mtx); 2870 } 2871 2872 return(0); 2873 } 2874 2875 /************************************************************************ 2876 * Initiate a rescan of the 'logical devices' SIM 2877 */ 2878 static void 2879 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2880 { 2881 union ccb *ccb; 2882 2883 debug_called(1); 2884 2885 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2886 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2887 return; 2888 } 2889 2890 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2891 cam_sim_path(sc->ciss_cam_sim[bus]), 2892 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2893 ciss_printf(sc, "rescan failed (can't create path)\n"); 2894 xpt_free_ccb(ccb); 2895 return; 2896 } 2897 xpt_rescan(ccb); 2898 /* scan is now in progress */ 2899 } 2900 2901 /************************************************************************ 2902 * Handle requests coming from CAM 2903 */ 2904 static void 2905 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2906 { 2907 struct ciss_softc *sc; 2908 struct ccb_scsiio *csio; 2909 int bus, target; 2910 int physical; 2911 2912 sc = cam_sim_softc(sim); 2913 bus = cam_sim_bus(sim); 2914 csio = (struct ccb_scsiio *)&ccb->csio; 2915 target = csio->ccb_h.target_id; 2916 physical = CISS_IS_PHYSICAL(bus); 2917 2918 switch (ccb->ccb_h.func_code) { 2919 2920 /* perform SCSI I/O */ 2921 case XPT_SCSI_IO: 2922 if (!ciss_cam_action_io(sim, csio)) 2923 return; 2924 break; 2925 2926 /* perform geometry calculations */ 2927 case XPT_CALC_GEOMETRY: 2928 { 2929 struct ccb_calc_geometry *ccg = &ccb->ccg; 2930 struct ciss_ldrive *ld; 2931 2932 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2933 2934 ld = NULL; 2935 if (!physical) 2936 ld = &sc->ciss_logical[bus][target]; 2937 2938 /* 2939 * Use the cached geometry settings unless the fault tolerance 2940 * is invalid. 2941 */ 2942 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2943 u_int32_t secs_per_cylinder; 2944 2945 ccg->heads = 255; 2946 ccg->secs_per_track = 32; 2947 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2948 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2949 } else { 2950 ccg->heads = ld->cl_geometry.heads; 2951 ccg->secs_per_track = ld->cl_geometry.sectors; 2952 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2953 } 2954 ccb->ccb_h.status = CAM_REQ_CMP; 2955 break; 2956 } 2957 2958 /* handle path attribute inquiry */ 2959 case XPT_PATH_INQ: 2960 { 2961 struct ccb_pathinq *cpi = &ccb->cpi; 2962 2963 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2964 2965 cpi->version_num = 1; 2966 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2967 cpi->target_sprt = 0; 2968 cpi->hba_misc = 0; 2969 cpi->max_target = CISS_MAX_LOGICAL; 2970 cpi->max_lun = 0; /* 'logical drive' channel only */ 2971 cpi->initiator_id = CISS_MAX_LOGICAL; 2972 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2973 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2974 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2975 cpi->unit_number = cam_sim_unit(sim); 2976 cpi->bus_id = cam_sim_bus(sim); 2977 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2978 cpi->transport = XPORT_SPI; 2979 cpi->transport_version = 2; 2980 cpi->protocol = PROTO_SCSI; 2981 cpi->protocol_version = SCSI_REV_2; 2982 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2983 ccb->ccb_h.status = CAM_REQ_CMP; 2984 break; 2985 } 2986 2987 case XPT_GET_TRAN_SETTINGS: 2988 { 2989 struct ccb_trans_settings *cts = &ccb->cts; 2990 int bus, target; 2991 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2992 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2993 2994 bus = cam_sim_bus(sim); 2995 target = cts->ccb_h.target_id; 2996 2997 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2998 /* disconnect always OK */ 2999 cts->protocol = PROTO_SCSI; 3000 cts->protocol_version = SCSI_REV_2; 3001 cts->transport = XPORT_SPI; 3002 cts->transport_version = 2; 3003 3004 spi->valid = CTS_SPI_VALID_DISC; 3005 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3006 3007 scsi->valid = CTS_SCSI_VALID_TQ; 3008 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3009 3010 cts->ccb_h.status = CAM_REQ_CMP; 3011 break; 3012 } 3013 3014 default: /* we can't do this */ 3015 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3016 ccb->ccb_h.status = CAM_REQ_INVALID; 3017 break; 3018 } 3019 3020 xpt_done(ccb); 3021 } 3022 3023 /************************************************************************ 3024 * Handle a CAM SCSI I/O request. 3025 */ 3026 static int 3027 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3028 { 3029 struct ciss_softc *sc; 3030 int bus, target; 3031 struct ciss_request *cr; 3032 struct ciss_command *cc; 3033 int error; 3034 3035 sc = cam_sim_softc(sim); 3036 bus = cam_sim_bus(sim); 3037 target = csio->ccb_h.target_id; 3038 3039 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3040 3041 /* check that the CDB pointer is not to a physical address */ 3042 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3043 debug(3, " CDB pointer is to physical address"); 3044 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3045 } 3046 3047 /* if there is data transfer, it must be to/from a virtual address */ 3048 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3049 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3050 debug(3, " data pointer is to physical address"); 3051 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3052 } 3053 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3054 debug(3, " data has premature s/g setup"); 3055 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3056 } 3057 } 3058 3059 /* abandon aborted ccbs or those that have failed validation */ 3060 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3061 debug(3, "abandoning CCB due to abort/validation failure"); 3062 return(EINVAL); 3063 } 3064 3065 /* handle emulation of some SCSI commands ourself */ 3066 if (ciss_cam_emulate(sc, csio)) 3067 return(0); 3068 3069 /* 3070 * Get a request to manage this command. If we can't, return the 3071 * ccb, freeze the queue and flag so that we unfreeze it when a 3072 * request completes. 3073 */ 3074 if ((error = ciss_get_request(sc, &cr)) != 0) { 3075 xpt_freeze_simq(sim, 1); 3076 sc->ciss_flags |= CISS_FLAG_BUSY; 3077 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3078 return(error); 3079 } 3080 3081 /* 3082 * Build the command. 3083 */ 3084 cc = cr->cr_cc; 3085 cr->cr_data = csio->data_ptr; 3086 cr->cr_length = csio->dxfer_len; 3087 cr->cr_complete = ciss_cam_complete; 3088 cr->cr_private = csio; 3089 3090 /* 3091 * Target the right logical volume. 3092 */ 3093 if (CISS_IS_PHYSICAL(bus)) 3094 cc->header.address = 3095 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3096 else 3097 cc->header.address = 3098 sc->ciss_logical[bus][target].cl_address; 3099 cc->cdb.cdb_length = csio->cdb_len; 3100 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3101 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3102 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3103 cr->cr_flags = CISS_REQ_DATAOUT; 3104 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3105 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3106 cr->cr_flags = CISS_REQ_DATAIN; 3107 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3108 } else { 3109 cr->cr_flags = 0; 3110 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3111 } 3112 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3113 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3114 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3115 } else { 3116 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3117 } 3118 3119 /* 3120 * Submit the request to the adapter. 3121 * 3122 * Note that this may fail if we're unable to map the request (and 3123 * if we ever learn a transport layer other than simple, may fail 3124 * if the adapter rejects the command). 3125 */ 3126 if ((error = ciss_start(cr)) != 0) { 3127 xpt_freeze_simq(sim, 1); 3128 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3129 if (error == EINPROGRESS) { 3130 error = 0; 3131 } else { 3132 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3133 ciss_release_request(cr); 3134 } 3135 return(error); 3136 } 3137 3138 return(0); 3139 } 3140 3141 /************************************************************************ 3142 * Emulate SCSI commands the adapter doesn't handle as we might like. 3143 */ 3144 static int 3145 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3146 { 3147 int bus, target; 3148 u_int8_t opcode; 3149 3150 target = csio->ccb_h.target_id; 3151 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3152 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3153 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3154 3155 if (CISS_IS_PHYSICAL(bus)) { 3156 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3157 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3158 xpt_done((union ccb *)csio); 3159 return(1); 3160 } else 3161 return(0); 3162 } 3163 3164 /* 3165 * Handle requests for volumes that don't exist or are not online. 3166 * A selection timeout is slightly better than an illegal request. 3167 * Other errors might be better. 3168 */ 3169 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3170 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3171 xpt_done((union ccb *)csio); 3172 return(1); 3173 } 3174 3175 /* if we have to fake Synchronise Cache */ 3176 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3177 /* 3178 * If this is a Synchronise Cache command, typically issued when 3179 * a device is closed, flush the adapter and complete now. 3180 */ 3181 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3182 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3183 ciss_flush_adapter(sc); 3184 csio->ccb_h.status |= CAM_REQ_CMP; 3185 xpt_done((union ccb *)csio); 3186 return(1); 3187 } 3188 } 3189 3190 return(0); 3191 } 3192 3193 /************************************************************************ 3194 * Check for possibly-completed commands. 3195 */ 3196 static void 3197 ciss_cam_poll(struct cam_sim *sim) 3198 { 3199 cr_qhead_t qh; 3200 struct ciss_softc *sc = cam_sim_softc(sim); 3201 3202 debug_called(2); 3203 3204 STAILQ_INIT(&qh); 3205 if (sc->ciss_perf) 3206 ciss_perf_done(sc, &qh); 3207 else 3208 ciss_done(sc, &qh); 3209 ciss_complete(sc, &qh); 3210 } 3211 3212 /************************************************************************ 3213 * Handle completion of a command - pass results back through the CCB 3214 */ 3215 static void 3216 ciss_cam_complete(struct ciss_request *cr) 3217 { 3218 struct ciss_softc *sc; 3219 struct ciss_command *cc; 3220 struct ciss_error_info *ce; 3221 struct ccb_scsiio *csio; 3222 int scsi_status; 3223 int command_status; 3224 3225 debug_called(2); 3226 3227 sc = cr->cr_sc; 3228 cc = cr->cr_cc; 3229 ce = (struct ciss_error_info *)&(cc->sg[0]); 3230 csio = (struct ccb_scsiio *)cr->cr_private; 3231 3232 /* 3233 * Extract status values from request. 3234 */ 3235 ciss_report_request(cr, &command_status, &scsi_status); 3236 csio->scsi_status = scsi_status; 3237 3238 /* 3239 * Handle specific SCSI status values. 3240 */ 3241 switch(scsi_status) { 3242 /* no status due to adapter error */ 3243 case -1: 3244 debug(0, "adapter error"); 3245 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3246 break; 3247 3248 /* no status due to command completed OK */ 3249 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3250 debug(2, "SCSI_STATUS_OK"); 3251 csio->ccb_h.status |= CAM_REQ_CMP; 3252 break; 3253 3254 /* check condition, sense data included */ 3255 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3256 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3257 ce->sense_length, ce->residual_count); 3258 bzero(&csio->sense_data, SSD_FULL_SIZE); 3259 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3260 if (csio->sense_len > ce->sense_length) 3261 csio->sense_resid = csio->sense_len - ce->sense_length; 3262 else 3263 csio->sense_resid = 0; 3264 csio->resid = ce->residual_count; 3265 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3266 #ifdef CISS_DEBUG 3267 { 3268 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3269 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3270 csio->sense_resid, /*show_errors*/ 1)); 3271 } 3272 #endif 3273 break; 3274 3275 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3276 debug(0, "SCSI_STATUS_BUSY"); 3277 csio->ccb_h.status |= CAM_SCSI_BUSY; 3278 break; 3279 3280 default: 3281 debug(0, "unknown status 0x%x", csio->scsi_status); 3282 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3283 break; 3284 } 3285 3286 /* handle post-command fixup */ 3287 ciss_cam_complete_fixup(sc, csio); 3288 3289 ciss_release_request(cr); 3290 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3291 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3292 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3293 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3294 else 3295 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3296 } 3297 xpt_done((union ccb *)csio); 3298 } 3299 3300 /******************************************************************************** 3301 * Fix up the result of some commands here. 3302 */ 3303 static void 3304 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3305 { 3306 struct scsi_inquiry_data *inq; 3307 struct ciss_ldrive *cl; 3308 uint8_t *cdb; 3309 int bus, target; 3310 3311 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3312 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3313 if (cdb[0] == INQUIRY && 3314 (cdb[1] & SI_EVPD) == 0 && 3315 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3316 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3317 3318 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3319 target = csio->ccb_h.target_id; 3320 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3321 3322 /* 3323 * Don't let hard drives be seen by the DA driver. They will still be 3324 * attached by the PASS driver. 3325 */ 3326 if (CISS_IS_PHYSICAL(bus)) { 3327 if (SID_TYPE(inq) == T_DIRECT) 3328 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3329 return; 3330 } 3331 3332 cl = &sc->ciss_logical[bus][target]; 3333 3334 padstr(inq->vendor, "COMPAQ", 8); 3335 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3336 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3337 } 3338 } 3339 3340 3341 /******************************************************************************** 3342 * Find a peripheral attached at (target) 3343 */ 3344 static struct cam_periph * 3345 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3346 { 3347 struct cam_periph *periph; 3348 struct cam_path *path; 3349 int status; 3350 3351 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3352 target, 0); 3353 if (status == CAM_REQ_CMP) { 3354 periph = cam_periph_find(path, NULL); 3355 xpt_free_path(path); 3356 } else { 3357 periph = NULL; 3358 } 3359 return(periph); 3360 } 3361 3362 /******************************************************************************** 3363 * Name the device at (target) 3364 * 3365 * XXX is this strictly correct? 3366 */ 3367 static int 3368 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3369 { 3370 struct cam_periph *periph; 3371 3372 if (CISS_IS_PHYSICAL(bus)) 3373 return (0); 3374 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3375 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3376 periph->periph_name, periph->unit_number); 3377 return(0); 3378 } 3379 sc->ciss_logical[bus][target].cl_name[0] = 0; 3380 return(ENOENT); 3381 } 3382 3383 /************************************************************************ 3384 * Periodic status monitoring. 3385 */ 3386 static void 3387 ciss_periodic(void *arg) 3388 { 3389 struct ciss_softc *sc; 3390 struct ciss_request *cr = NULL; 3391 struct ciss_command *cc = NULL; 3392 int error = 0; 3393 3394 debug_called(1); 3395 3396 sc = (struct ciss_softc *)arg; 3397 3398 /* 3399 * Check the adapter heartbeat. 3400 */ 3401 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3402 sc->ciss_heart_attack++; 3403 debug(0, "adapter heart attack in progress 0x%x/%d", 3404 sc->ciss_heartbeat, sc->ciss_heart_attack); 3405 if (sc->ciss_heart_attack == 3) { 3406 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3407 ciss_disable_adapter(sc); 3408 return; 3409 } 3410 } else { 3411 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3412 sc->ciss_heart_attack = 0; 3413 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3414 } 3415 3416 /* 3417 * Send the NOP message and wait for a response. 3418 */ 3419 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3420 cc = cr->cr_cc; 3421 cr->cr_complete = ciss_nop_complete; 3422 cc->cdb.cdb_length = 1; 3423 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3424 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3425 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3426 cc->cdb.timeout = 0; 3427 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3428 3429 if ((error = ciss_start(cr)) != 0) { 3430 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3431 } 3432 } 3433 3434 /* 3435 * If the notify event request has died for some reason, or has 3436 * not started yet, restart it. 3437 */ 3438 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3439 debug(0, "(re)starting Event Notify chain"); 3440 ciss_notify_event(sc); 3441 } 3442 3443 /* 3444 * Reschedule. 3445 */ 3446 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3447 } 3448 3449 static void 3450 ciss_nop_complete(struct ciss_request *cr) 3451 { 3452 struct ciss_softc *sc; 3453 static int first_time = 1; 3454 3455 sc = cr->cr_sc; 3456 if (ciss_report_request(cr, NULL, NULL) != 0) { 3457 if (first_time == 1) { 3458 first_time = 0; 3459 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3460 } 3461 } 3462 3463 ciss_release_request(cr); 3464 } 3465 3466 /************************************************************************ 3467 * Disable the adapter. 3468 * 3469 * The all requests in completed queue is failed with hardware error. 3470 * This will cause failover in a multipath configuration. 3471 */ 3472 static void 3473 ciss_disable_adapter(struct ciss_softc *sc) 3474 { 3475 cr_qhead_t qh; 3476 struct ciss_request *cr; 3477 struct ciss_command *cc; 3478 struct ciss_error_info *ce; 3479 int i; 3480 3481 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3482 pci_disable_busmaster(sc->ciss_dev); 3483 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3484 3485 for (i = 1; i < sc->ciss_max_requests; i++) { 3486 cr = &sc->ciss_request[i]; 3487 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3488 continue; 3489 3490 cc = cr->cr_cc; 3491 ce = (struct ciss_error_info *)&(cc->sg[0]); 3492 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3493 ciss_enqueue_complete(cr, &qh); 3494 } 3495 3496 for (;;) { 3497 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3498 break; 3499 3500 /* 3501 * If the request has a callback, invoke it. 3502 */ 3503 if (cr->cr_complete != NULL) { 3504 cr->cr_complete(cr); 3505 continue; 3506 } 3507 3508 /* 3509 * If someone is sleeping on this request, wake them up. 3510 */ 3511 if (cr->cr_flags & CISS_REQ_SLEEP) { 3512 cr->cr_flags &= ~CISS_REQ_SLEEP; 3513 wakeup(cr); 3514 continue; 3515 } 3516 } 3517 } 3518 3519 /************************************************************************ 3520 * Request a notification response from the adapter. 3521 * 3522 * If (cr) is NULL, this is the first request of the adapter, so 3523 * reset the adapter's message pointer and start with the oldest 3524 * message available. 3525 */ 3526 static void 3527 ciss_notify_event(struct ciss_softc *sc) 3528 { 3529 struct ciss_request *cr; 3530 struct ciss_command *cc; 3531 struct ciss_notify_cdb *cnc; 3532 int error; 3533 3534 debug_called(1); 3535 3536 cr = sc->ciss_periodic_notify; 3537 3538 /* get a request if we don't already have one */ 3539 if (cr == NULL) { 3540 if ((error = ciss_get_request(sc, &cr)) != 0) { 3541 debug(0, "can't get notify event request"); 3542 goto out; 3543 } 3544 sc->ciss_periodic_notify = cr; 3545 cr->cr_complete = ciss_notify_complete; 3546 debug(1, "acquired request %d", cr->cr_tag); 3547 } 3548 3549 /* 3550 * Get a databuffer if we don't already have one, note that the 3551 * adapter command wants a larger buffer than the actual 3552 * structure. 3553 */ 3554 if (cr->cr_data == NULL) { 3555 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3556 debug(0, "can't get notify event request buffer"); 3557 error = ENOMEM; 3558 goto out; 3559 } 3560 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3561 } 3562 3563 /* re-setup the request's command (since we never release it) XXX overkill*/ 3564 ciss_preen_command(cr); 3565 3566 /* (re)build the notify event command */ 3567 cc = cr->cr_cc; 3568 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3569 cc->header.address.physical.bus = 0; 3570 cc->header.address.physical.target = 0; 3571 3572 cc->cdb.cdb_length = sizeof(*cnc); 3573 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3574 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3575 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3576 cc->cdb.timeout = 0; /* no timeout, we hope */ 3577 3578 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3579 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3580 cnc->opcode = CISS_OPCODE_READ; 3581 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3582 cnc->timeout = 0; /* no timeout, we hope */ 3583 cnc->synchronous = 0; 3584 cnc->ordered = 0; 3585 cnc->seek_to_oldest = 0; 3586 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3587 cnc->new_only = 1; 3588 else 3589 cnc->new_only = 0; 3590 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3591 3592 /* submit the request */ 3593 error = ciss_start(cr); 3594 3595 out: 3596 if (error) { 3597 if (cr != NULL) { 3598 if (cr->cr_data != NULL) 3599 free(cr->cr_data, CISS_MALLOC_CLASS); 3600 ciss_release_request(cr); 3601 } 3602 sc->ciss_periodic_notify = NULL; 3603 debug(0, "can't submit notify event request"); 3604 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3605 } else { 3606 debug(1, "notify event submitted"); 3607 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3608 } 3609 } 3610 3611 static void 3612 ciss_notify_complete(struct ciss_request *cr) 3613 { 3614 struct ciss_command *cc; 3615 struct ciss_notify *cn; 3616 struct ciss_softc *sc; 3617 int scsi_status; 3618 int command_status; 3619 debug_called(1); 3620 3621 cc = cr->cr_cc; 3622 cn = (struct ciss_notify *)cr->cr_data; 3623 sc = cr->cr_sc; 3624 3625 /* 3626 * Report request results, decode status. 3627 */ 3628 ciss_report_request(cr, &command_status, &scsi_status); 3629 3630 /* 3631 * Abort the chain on a fatal error. 3632 * 3633 * XXX which of these are actually errors? 3634 */ 3635 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3636 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3637 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3638 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3639 ciss_name_command_status(command_status)); 3640 ciss_release_request(cr); 3641 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3642 return; 3643 } 3644 3645 /* 3646 * If the adapter gave us a text message, print it. 3647 */ 3648 if (cn->message[0] != 0) 3649 ciss_printf(sc, "*** %.80s\n", cn->message); 3650 3651 debug(0, "notify event class %d subclass %d detail %d", 3652 cn->class, cn->subclass, cn->detail); 3653 3654 /* 3655 * If the response indicates that the notifier has been aborted, 3656 * release the notifier command. 3657 */ 3658 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3659 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3660 (cn->detail == 1)) { 3661 debug(0, "notifier exiting"); 3662 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3663 ciss_release_request(cr); 3664 sc->ciss_periodic_notify = NULL; 3665 wakeup(&sc->ciss_periodic_notify); 3666 } else { 3667 /* Handle notify events in a kernel thread */ 3668 ciss_enqueue_notify(cr); 3669 sc->ciss_periodic_notify = NULL; 3670 wakeup(&sc->ciss_periodic_notify); 3671 wakeup(&sc->ciss_notify); 3672 } 3673 /* 3674 * Send a new notify event command, if we're not aborting. 3675 */ 3676 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3677 ciss_notify_event(sc); 3678 } 3679 } 3680 3681 /************************************************************************ 3682 * Abort the Notify Event chain. 3683 * 3684 * Note that we can't just abort the command in progress; we have to 3685 * explicitly issue an Abort Notify Event command in order for the 3686 * adapter to clean up correctly. 3687 * 3688 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3689 * the chain will not restart itself. 3690 */ 3691 static int 3692 ciss_notify_abort(struct ciss_softc *sc) 3693 { 3694 struct ciss_request *cr; 3695 struct ciss_command *cc; 3696 struct ciss_notify_cdb *cnc; 3697 int error, command_status, scsi_status; 3698 3699 debug_called(1); 3700 3701 cr = NULL; 3702 error = 0; 3703 3704 /* verify that there's an outstanding command */ 3705 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3706 goto out; 3707 3708 /* get a command to issue the abort with */ 3709 if ((error = ciss_get_request(sc, &cr))) 3710 goto out; 3711 3712 /* get a buffer for the result */ 3713 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3714 debug(0, "can't get notify event request buffer"); 3715 error = ENOMEM; 3716 goto out; 3717 } 3718 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3719 3720 /* build the CDB */ 3721 cc = cr->cr_cc; 3722 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3723 cc->header.address.physical.bus = 0; 3724 cc->header.address.physical.target = 0; 3725 cc->cdb.cdb_length = sizeof(*cnc); 3726 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3727 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3728 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3729 cc->cdb.timeout = 0; /* no timeout, we hope */ 3730 3731 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3732 bzero(cnc, sizeof(*cnc)); 3733 cnc->opcode = CISS_OPCODE_WRITE; 3734 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3735 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3736 3737 ciss_print_request(cr); 3738 3739 /* 3740 * Submit the request and wait for it to complete. 3741 */ 3742 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3743 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3744 goto out; 3745 } 3746 3747 /* 3748 * Check response. 3749 */ 3750 ciss_report_request(cr, &command_status, &scsi_status); 3751 switch(command_status) { 3752 case CISS_CMD_STATUS_SUCCESS: 3753 break; 3754 case CISS_CMD_STATUS_INVALID_COMMAND: 3755 /* 3756 * Some older adapters don't support the CISS version of this 3757 * command. Fall back to using the BMIC version. 3758 */ 3759 error = ciss_notify_abort_bmic(sc); 3760 if (error != 0) 3761 goto out; 3762 break; 3763 3764 case CISS_CMD_STATUS_TARGET_STATUS: 3765 /* 3766 * This can happen if the adapter thinks there wasn't an outstanding 3767 * Notify Event command but we did. We clean up here. 3768 */ 3769 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3770 if (sc->ciss_periodic_notify != NULL) 3771 ciss_release_request(sc->ciss_periodic_notify); 3772 error = 0; 3773 goto out; 3774 } 3775 /* FALLTHROUGH */ 3776 3777 default: 3778 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3779 ciss_name_command_status(command_status)); 3780 error = EIO; 3781 goto out; 3782 } 3783 3784 /* 3785 * Sleep waiting for the notifier command to complete. Note 3786 * that if it doesn't, we may end up in a bad situation, since 3787 * the adapter may deliver it later. Also note that the adapter 3788 * requires the Notify Event command to be cancelled in order to 3789 * maintain internal bookkeeping. 3790 */ 3791 while (sc->ciss_periodic_notify != NULL) { 3792 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3793 if (error == EWOULDBLOCK) { 3794 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3795 break; 3796 } 3797 } 3798 3799 out: 3800 /* release the cancel request */ 3801 if (cr != NULL) { 3802 if (cr->cr_data != NULL) 3803 free(cr->cr_data, CISS_MALLOC_CLASS); 3804 ciss_release_request(cr); 3805 } 3806 if (error == 0) 3807 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3808 return(error); 3809 } 3810 3811 /************************************************************************ 3812 * Abort the Notify Event chain using a BMIC command. 3813 */ 3814 static int 3815 ciss_notify_abort_bmic(struct ciss_softc *sc) 3816 { 3817 struct ciss_request *cr; 3818 int error, command_status; 3819 3820 debug_called(1); 3821 3822 cr = NULL; 3823 error = 0; 3824 3825 /* verify that there's an outstanding command */ 3826 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3827 goto out; 3828 3829 /* 3830 * Build a BMIC command to cancel the Notify on Event command. 3831 * 3832 * Note that we are sending a CISS opcode here. Odd. 3833 */ 3834 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3835 NULL, 0)) != 0) 3836 goto out; 3837 3838 /* 3839 * Submit the request and wait for it to complete. 3840 */ 3841 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3842 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3843 goto out; 3844 } 3845 3846 /* 3847 * Check response. 3848 */ 3849 ciss_report_request(cr, &command_status, NULL); 3850 switch(command_status) { 3851 case CISS_CMD_STATUS_SUCCESS: 3852 break; 3853 default: 3854 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3855 ciss_name_command_status(command_status)); 3856 error = EIO; 3857 goto out; 3858 } 3859 3860 out: 3861 if (cr != NULL) 3862 ciss_release_request(cr); 3863 return(error); 3864 } 3865 3866 /************************************************************************ 3867 * Handle rescanning all the logical volumes when a notify event 3868 * causes the drives to come online or offline. 3869 */ 3870 static void 3871 ciss_notify_rescan_logical(struct ciss_softc *sc) 3872 { 3873 struct ciss_lun_report *cll; 3874 struct ciss_ldrive *ld; 3875 int i, j, ndrives; 3876 3877 /* 3878 * We must rescan all logical volumes to get the right logical 3879 * drive address. 3880 */ 3881 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3882 CISS_MAX_LOGICAL); 3883 if (cll == NULL) 3884 return; 3885 3886 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3887 3888 /* 3889 * Delete any of the drives which were destroyed by the 3890 * firmware. 3891 */ 3892 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3893 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3894 ld = &sc->ciss_logical[i][j]; 3895 3896 if (ld->cl_update == 0) 3897 continue; 3898 3899 if (ld->cl_status != CISS_LD_ONLINE) { 3900 ciss_cam_rescan_target(sc, i, j); 3901 ld->cl_update = 0; 3902 if (ld->cl_ldrive) 3903 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3904 if (ld->cl_lstatus) 3905 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3906 3907 ld->cl_ldrive = NULL; 3908 ld->cl_lstatus = NULL; 3909 } 3910 } 3911 } 3912 3913 /* 3914 * Scan for new drives. 3915 */ 3916 for (i = 0; i < ndrives; i++) { 3917 int bus, target; 3918 3919 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3920 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3921 ld = &sc->ciss_logical[bus][target]; 3922 3923 if (ld->cl_update == 0) 3924 continue; 3925 3926 ld->cl_update = 0; 3927 ld->cl_address = cll->lun[i]; 3928 ld->cl_controller = &sc->ciss_controllers[bus]; 3929 if (ciss_identify_logical(sc, ld) == 0) { 3930 ciss_cam_rescan_target(sc, bus, target); 3931 } 3932 } 3933 free(cll, CISS_MALLOC_CLASS); 3934 } 3935 3936 /************************************************************************ 3937 * Handle a notify event relating to the status of a logical drive. 3938 * 3939 * XXX need to be able to defer some of these to properly handle 3940 * calling the "ID Physical drive" command, unless the 'extended' 3941 * drive IDs are always in BIG_MAP format. 3942 */ 3943 static void 3944 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3945 { 3946 struct ciss_ldrive *ld; 3947 int ostatus, bus, target; 3948 3949 debug_called(2); 3950 3951 bus = cn->device.physical.bus; 3952 target = cn->data.logical_status.logical_drive; 3953 ld = &sc->ciss_logical[bus][target]; 3954 3955 switch (cn->subclass) { 3956 case CISS_NOTIFY_LOGICAL_STATUS: 3957 switch (cn->detail) { 3958 case 0: 3959 ciss_name_device(sc, bus, target); 3960 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3961 cn->data.logical_status.logical_drive, ld->cl_name, 3962 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3963 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3964 cn->data.logical_status.spare_state, 3965 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3966 3967 /* 3968 * Update our idea of the drive's status. 3969 */ 3970 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3971 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3972 if (ld->cl_lstatus != NULL) 3973 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3974 3975 /* 3976 * Have CAM rescan the drive if its status has changed. 3977 */ 3978 if (ostatus != ld->cl_status) { 3979 ld->cl_update = 1; 3980 ciss_notify_rescan_logical(sc); 3981 } 3982 3983 break; 3984 3985 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3986 ciss_name_device(sc, bus, target); 3987 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3988 cn->data.logical_status.logical_drive, ld->cl_name); 3989 ciss_accept_media(sc, ld); 3990 3991 ld->cl_update = 1; 3992 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3993 ciss_notify_rescan_logical(sc); 3994 break; 3995 3996 case 2: 3997 case 3: 3998 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3999 cn->data.rebuild_aborted.logical_drive, 4000 ld->cl_name, 4001 (cn->detail == 2) ? "read" : "write"); 4002 break; 4003 } 4004 break; 4005 4006 case CISS_NOTIFY_LOGICAL_ERROR: 4007 if (cn->detail == 0) { 4008 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4009 cn->data.io_error.logical_drive, 4010 ld->cl_name, 4011 cn->data.io_error.failure_bus, 4012 cn->data.io_error.failure_drive); 4013 /* XXX should we take the drive down at this point, or will we be told? */ 4014 } 4015 break; 4016 4017 case CISS_NOTIFY_LOGICAL_SURFACE: 4018 if (cn->detail == 0) 4019 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4020 cn->data.consistency_completed.logical_drive, 4021 ld->cl_name); 4022 break; 4023 } 4024 } 4025 4026 /************************************************************************ 4027 * Handle a notify event relating to the status of a physical drive. 4028 */ 4029 static void 4030 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4031 { 4032 } 4033 4034 /************************************************************************ 4035 * Handle a notify event relating to the status of a physical drive. 4036 */ 4037 static void 4038 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4039 { 4040 struct ciss_lun_report *cll = NULL; 4041 int bus, target; 4042 4043 switch (cn->subclass) { 4044 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4045 case CISS_NOTIFY_HOTPLUG_NONDISK: 4046 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4047 target = 4048 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4049 4050 if (cn->detail == 0) { 4051 /* 4052 * Mark the device offline so that it'll start producing selection 4053 * timeouts to the upper layer. 4054 */ 4055 if ((bus >= 0) && (target >= 0)) 4056 sc->ciss_physical[bus][target].cp_online = 0; 4057 } else { 4058 /* 4059 * Rescan the physical lun list for new items 4060 */ 4061 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4062 CISS_MAX_PHYSICAL); 4063 if (cll == NULL) { 4064 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4065 break; 4066 } 4067 ciss_filter_physical(sc, cll); 4068 } 4069 break; 4070 4071 default: 4072 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4073 return; 4074 } 4075 4076 if (cll != NULL) 4077 free(cll, CISS_MALLOC_CLASS); 4078 } 4079 4080 /************************************************************************ 4081 * Handle deferred processing of notify events. Notify events may need 4082 * sleep which is unsafe during an interrupt. 4083 */ 4084 static void 4085 ciss_notify_thread(void *arg) 4086 { 4087 struct ciss_softc *sc; 4088 struct ciss_request *cr; 4089 struct ciss_notify *cn; 4090 4091 sc = (struct ciss_softc *)arg; 4092 #if __FreeBSD_version >= 500000 4093 mtx_lock(&sc->ciss_mtx); 4094 #endif 4095 4096 for (;;) { 4097 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4098 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4099 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4100 } 4101 4102 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4103 break; 4104 4105 cr = ciss_dequeue_notify(sc); 4106 4107 if (cr == NULL) 4108 panic("cr null"); 4109 cn = (struct ciss_notify *)cr->cr_data; 4110 4111 switch (cn->class) { 4112 case CISS_NOTIFY_HOTPLUG: 4113 ciss_notify_hotplug(sc, cn); 4114 break; 4115 case CISS_NOTIFY_LOGICAL: 4116 ciss_notify_logical(sc, cn); 4117 break; 4118 case CISS_NOTIFY_PHYSICAL: 4119 ciss_notify_physical(sc, cn); 4120 break; 4121 } 4122 4123 ciss_release_request(cr); 4124 4125 } 4126 sc->ciss_notify_thread = NULL; 4127 wakeup(&sc->ciss_notify_thread); 4128 4129 #if __FreeBSD_version >= 500000 4130 mtx_unlock(&sc->ciss_mtx); 4131 #endif 4132 kproc_exit(0); 4133 } 4134 4135 /************************************************************************ 4136 * Start the notification kernel thread. 4137 */ 4138 static void 4139 ciss_spawn_notify_thread(struct ciss_softc *sc) 4140 { 4141 4142 #if __FreeBSD_version > 500005 4143 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4144 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4145 device_get_unit(sc->ciss_dev))) 4146 #else 4147 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4148 &sc->ciss_notify_thread, "ciss_notify%d", 4149 device_get_unit(sc->ciss_dev))) 4150 #endif 4151 panic("Could not create notify thread\n"); 4152 } 4153 4154 /************************************************************************ 4155 * Kill the notification kernel thread. 4156 */ 4157 static void 4158 ciss_kill_notify_thread(struct ciss_softc *sc) 4159 { 4160 4161 if (sc->ciss_notify_thread == NULL) 4162 return; 4163 4164 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4165 wakeup(&sc->ciss_notify); 4166 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4167 } 4168 4169 /************************************************************************ 4170 * Print a request. 4171 */ 4172 static void 4173 ciss_print_request(struct ciss_request *cr) 4174 { 4175 struct ciss_softc *sc; 4176 struct ciss_command *cc; 4177 int i; 4178 4179 sc = cr->cr_sc; 4180 cc = cr->cr_cc; 4181 4182 ciss_printf(sc, "REQUEST @ %p\n", cr); 4183 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4184 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4185 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4186 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4187 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4188 switch(cc->header.address.mode.mode) { 4189 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4190 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4191 ciss_printf(sc, " physical bus %d target %d\n", 4192 cc->header.address.physical.bus, cc->header.address.physical.target); 4193 break; 4194 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4195 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4196 break; 4197 } 4198 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4199 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4200 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4201 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4202 cc->cdb.cdb_length, 4203 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4204 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4205 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4206 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4207 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4208 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4209 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4210 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4211 4212 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4213 /* XXX print error info */ 4214 } else { 4215 /* since we don't use chained s/g, don't support it here */ 4216 for (i = 0; i < cc->header.sg_in_list; i++) { 4217 if ((i % 4) == 0) 4218 ciss_printf(sc, " "); 4219 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4220 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4221 printf("\n"); 4222 } 4223 } 4224 } 4225 4226 /************************************************************************ 4227 * Print information about the status of a logical drive. 4228 */ 4229 static void 4230 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4231 { 4232 int bus, target, i; 4233 4234 if (ld->cl_lstatus == NULL) { 4235 printf("does not exist\n"); 4236 return; 4237 } 4238 4239 /* print drive status */ 4240 switch(ld->cl_lstatus->status) { 4241 case CISS_LSTATUS_OK: 4242 printf("online\n"); 4243 break; 4244 case CISS_LSTATUS_INTERIM_RECOVERY: 4245 printf("in interim recovery mode\n"); 4246 break; 4247 case CISS_LSTATUS_READY_RECOVERY: 4248 printf("ready to begin recovery\n"); 4249 break; 4250 case CISS_LSTATUS_RECOVERING: 4251 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4252 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4253 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4254 bus, target, ld->cl_lstatus->blocks_to_recover); 4255 break; 4256 case CISS_LSTATUS_EXPANDING: 4257 printf("being expanded, %u blocks remaining\n", 4258 ld->cl_lstatus->blocks_to_recover); 4259 break; 4260 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4261 printf("queued for expansion\n"); 4262 break; 4263 case CISS_LSTATUS_FAILED: 4264 printf("queued for expansion\n"); 4265 break; 4266 case CISS_LSTATUS_WRONG_PDRIVE: 4267 printf("wrong physical drive inserted\n"); 4268 break; 4269 case CISS_LSTATUS_MISSING_PDRIVE: 4270 printf("missing a needed physical drive\n"); 4271 break; 4272 case CISS_LSTATUS_BECOMING_READY: 4273 printf("becoming ready\n"); 4274 break; 4275 } 4276 4277 /* print failed physical drives */ 4278 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4279 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4280 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4281 if (bus == -1) 4282 continue; 4283 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4284 ld->cl_lstatus->drive_failure_map[i]); 4285 } 4286 } 4287 4288 #ifdef CISS_DEBUG 4289 /************************************************************************ 4290 * Print information about the controller/driver. 4291 */ 4292 static void 4293 ciss_print_adapter(struct ciss_softc *sc) 4294 { 4295 int i, j; 4296 4297 ciss_printf(sc, "ADAPTER:\n"); 4298 for (i = 0; i < CISSQ_COUNT; i++) { 4299 ciss_printf(sc, "%s %d/%d\n", 4300 i == 0 ? "free" : 4301 i == 1 ? "busy" : "complete", 4302 sc->ciss_qstat[i].q_length, 4303 sc->ciss_qstat[i].q_max); 4304 } 4305 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4306 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4307 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4308 4309 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4310 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4311 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4312 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4313 } 4314 } 4315 4316 /* XXX Should physical drives be printed out here? */ 4317 4318 for (i = 1; i < sc->ciss_max_requests; i++) 4319 ciss_print_request(sc->ciss_request + i); 4320 } 4321 4322 /* DDB hook */ 4323 static void 4324 ciss_print0(void) 4325 { 4326 struct ciss_softc *sc; 4327 4328 sc = devclass_get_softc(devclass_find("ciss"), 0); 4329 if (sc == NULL) { 4330 printf("no ciss controllers\n"); 4331 } else { 4332 ciss_print_adapter(sc); 4333 } 4334 } 4335 #endif 4336 4337 /************************************************************************ 4338 * Return a name for a logical drive status value. 4339 */ 4340 static const char * 4341 ciss_name_ldrive_status(int status) 4342 { 4343 switch (status) { 4344 case CISS_LSTATUS_OK: 4345 return("OK"); 4346 case CISS_LSTATUS_FAILED: 4347 return("failed"); 4348 case CISS_LSTATUS_NOT_CONFIGURED: 4349 return("not configured"); 4350 case CISS_LSTATUS_INTERIM_RECOVERY: 4351 return("interim recovery"); 4352 case CISS_LSTATUS_READY_RECOVERY: 4353 return("ready for recovery"); 4354 case CISS_LSTATUS_RECOVERING: 4355 return("recovering"); 4356 case CISS_LSTATUS_WRONG_PDRIVE: 4357 return("wrong physical drive inserted"); 4358 case CISS_LSTATUS_MISSING_PDRIVE: 4359 return("missing physical drive"); 4360 case CISS_LSTATUS_EXPANDING: 4361 return("expanding"); 4362 case CISS_LSTATUS_BECOMING_READY: 4363 return("becoming ready"); 4364 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4365 return("queued for expansion"); 4366 } 4367 return("unknown status"); 4368 } 4369 4370 /************************************************************************ 4371 * Return an online/offline/nonexistent value for a logical drive 4372 * status value. 4373 */ 4374 static int 4375 ciss_decode_ldrive_status(int status) 4376 { 4377 switch(status) { 4378 case CISS_LSTATUS_NOT_CONFIGURED: 4379 return(CISS_LD_NONEXISTENT); 4380 4381 case CISS_LSTATUS_OK: 4382 case CISS_LSTATUS_INTERIM_RECOVERY: 4383 case CISS_LSTATUS_READY_RECOVERY: 4384 case CISS_LSTATUS_RECOVERING: 4385 case CISS_LSTATUS_EXPANDING: 4386 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4387 return(CISS_LD_ONLINE); 4388 4389 case CISS_LSTATUS_FAILED: 4390 case CISS_LSTATUS_WRONG_PDRIVE: 4391 case CISS_LSTATUS_MISSING_PDRIVE: 4392 case CISS_LSTATUS_BECOMING_READY: 4393 default: 4394 return(CISS_LD_OFFLINE); 4395 } 4396 } 4397 4398 4399 /************************************************************************ 4400 * Return a name for a logical drive's organisation. 4401 */ 4402 static const char * 4403 ciss_name_ldrive_org(int org) 4404 { 4405 switch(org) { 4406 case CISS_LDRIVE_RAID0: 4407 return("RAID 0"); 4408 case CISS_LDRIVE_RAID1: 4409 return("RAID 1(1+0)"); 4410 case CISS_LDRIVE_RAID4: 4411 return("RAID 4"); 4412 case CISS_LDRIVE_RAID5: 4413 return("RAID 5"); 4414 case CISS_LDRIVE_RAID51: 4415 return("RAID 5+1"); 4416 case CISS_LDRIVE_RAIDADG: 4417 return("RAID ADG"); 4418 } 4419 return("unkown"); 4420 } 4421 4422 /************************************************************************ 4423 * Return a name for a command status value. 4424 */ 4425 static const char * 4426 ciss_name_command_status(int status) 4427 { 4428 switch(status) { 4429 case CISS_CMD_STATUS_SUCCESS: 4430 return("success"); 4431 case CISS_CMD_STATUS_TARGET_STATUS: 4432 return("target status"); 4433 case CISS_CMD_STATUS_DATA_UNDERRUN: 4434 return("data underrun"); 4435 case CISS_CMD_STATUS_DATA_OVERRUN: 4436 return("data overrun"); 4437 case CISS_CMD_STATUS_INVALID_COMMAND: 4438 return("invalid command"); 4439 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4440 return("protocol error"); 4441 case CISS_CMD_STATUS_HARDWARE_ERROR: 4442 return("hardware error"); 4443 case CISS_CMD_STATUS_CONNECTION_LOST: 4444 return("connection lost"); 4445 case CISS_CMD_STATUS_ABORTED: 4446 return("aborted"); 4447 case CISS_CMD_STATUS_ABORT_FAILED: 4448 return("abort failed"); 4449 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4450 return("unsolicited abort"); 4451 case CISS_CMD_STATUS_TIMEOUT: 4452 return("timeout"); 4453 case CISS_CMD_STATUS_UNABORTABLE: 4454 return("unabortable"); 4455 } 4456 return("unknown status"); 4457 } 4458 4459 /************************************************************************ 4460 * Handle an open on the control device. 4461 */ 4462 static int 4463 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4464 { 4465 struct ciss_softc *sc; 4466 4467 debug_called(1); 4468 4469 sc = (struct ciss_softc *)dev->si_drv1; 4470 4471 /* we might want to veto if someone already has us open */ 4472 4473 mtx_lock(&sc->ciss_mtx); 4474 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4475 mtx_unlock(&sc->ciss_mtx); 4476 return(0); 4477 } 4478 4479 /************************************************************************ 4480 * Handle the last close on the control device. 4481 */ 4482 static int 4483 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4484 { 4485 struct ciss_softc *sc; 4486 4487 debug_called(1); 4488 4489 sc = (struct ciss_softc *)dev->si_drv1; 4490 4491 mtx_lock(&sc->ciss_mtx); 4492 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4493 mtx_unlock(&sc->ciss_mtx); 4494 return (0); 4495 } 4496 4497 /******************************************************************************** 4498 * Handle adapter-specific control operations. 4499 * 4500 * Note that the API here is compatible with the Linux driver, in order to 4501 * simplify the porting of Compaq's userland tools. 4502 */ 4503 static int 4504 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4505 { 4506 struct ciss_softc *sc; 4507 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4508 #ifdef __amd64__ 4509 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4510 IOCTL_Command_struct ioc_swab; 4511 #endif 4512 int error; 4513 4514 debug_called(1); 4515 4516 sc = (struct ciss_softc *)dev->si_drv1; 4517 error = 0; 4518 mtx_lock(&sc->ciss_mtx); 4519 4520 switch(cmd) { 4521 case CCISS_GETQSTATS: 4522 { 4523 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4524 4525 switch (cr->cs_item) { 4526 case CISSQ_FREE: 4527 case CISSQ_NOTIFY: 4528 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4529 sizeof(struct ciss_qstat)); 4530 break; 4531 default: 4532 error = ENOIOCTL; 4533 break; 4534 } 4535 4536 break; 4537 } 4538 4539 case CCISS_GETPCIINFO: 4540 { 4541 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4542 4543 pis->bus = pci_get_bus(sc->ciss_dev); 4544 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4545 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4546 pci_get_subdevice(sc->ciss_dev); 4547 4548 break; 4549 } 4550 4551 case CCISS_GETINTINFO: 4552 { 4553 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4554 4555 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4556 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4557 4558 break; 4559 } 4560 4561 case CCISS_SETINTINFO: 4562 { 4563 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4564 4565 if ((cis->delay == 0) && (cis->count == 0)) { 4566 error = EINVAL; 4567 break; 4568 } 4569 4570 /* 4571 * XXX apparently this is only safe if the controller is idle, 4572 * we should suspend it before doing this. 4573 */ 4574 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4575 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4576 4577 if (ciss_update_config(sc)) 4578 error = EIO; 4579 4580 /* XXX resume the controller here */ 4581 break; 4582 } 4583 4584 case CCISS_GETNODENAME: 4585 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4586 sizeof(NodeName_type)); 4587 break; 4588 4589 case CCISS_SETNODENAME: 4590 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4591 sizeof(NodeName_type)); 4592 if (ciss_update_config(sc)) 4593 error = EIO; 4594 break; 4595 4596 case CCISS_GETHEARTBEAT: 4597 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4598 break; 4599 4600 case CCISS_GETBUSTYPES: 4601 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4602 break; 4603 4604 case CCISS_GETFIRMVER: 4605 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4606 sizeof(FirmwareVer_type)); 4607 break; 4608 4609 case CCISS_GETDRIVERVER: 4610 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4611 break; 4612 4613 case CCISS_REVALIDVOLS: 4614 /* 4615 * This is a bit ugly; to do it "right" we really need 4616 * to find any disks that have changed, kick CAM off them, 4617 * then rescan only these disks. It'd be nice if they 4618 * a) told us which disk(s) they were going to play with, 4619 * and b) which ones had arrived. 8( 4620 */ 4621 break; 4622 4623 #ifdef __amd64__ 4624 case CCISS_PASSTHRU32: 4625 ioc_swab.LUN_info = ioc32->LUN_info; 4626 ioc_swab.Request = ioc32->Request; 4627 ioc_swab.error_info = ioc32->error_info; 4628 ioc_swab.buf_size = ioc32->buf_size; 4629 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4630 ioc = &ioc_swab; 4631 /* FALLTHROUGH */ 4632 #endif 4633 4634 case CCISS_PASSTHRU: 4635 error = ciss_user_command(sc, ioc); 4636 break; 4637 4638 default: 4639 debug(0, "unknown ioctl 0x%lx", cmd); 4640 4641 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4642 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4643 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4644 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4645 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4646 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4647 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4648 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4649 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4650 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4651 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4652 4653 error = ENOIOCTL; 4654 break; 4655 } 4656 4657 mtx_unlock(&sc->ciss_mtx); 4658 return(error); 4659 } 4660