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 #define CISS_BOARD_SIMPLE (1<<5) 286 287 static struct 288 { 289 u_int16_t subvendor; 290 u_int16_t subdevice; 291 int flags; 292 char *desc; 293 } ciss_vendor_data[] = { 294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 295 "Compaq Smart Array 5300" }, 296 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 297 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 298 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 299 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 300 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 301 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 302 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 303 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 304 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 306 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 309 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 312 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 313 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 318 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 319 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 321 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 326 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 327 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 328 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 329 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 330 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 331 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 332 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 333 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 334 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 335 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 336 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 337 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 338 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 339 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 340 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 341 { 0, 0, 0, NULL } 342 }; 343 344 /************************************************************************ 345 * Find a match for the device in our list of known adapters. 346 */ 347 static int 348 ciss_lookup(device_t dev) 349 { 350 int i; 351 352 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 353 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 354 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 355 return(i); 356 } 357 return(-1); 358 } 359 360 /************************************************************************ 361 * Match a known CISS adapter. 362 */ 363 static int 364 ciss_probe(device_t dev) 365 { 366 int i; 367 368 i = ciss_lookup(dev); 369 if (i != -1) { 370 device_set_desc(dev, ciss_vendor_data[i].desc); 371 return(BUS_PROBE_DEFAULT); 372 } 373 return(ENOENT); 374 } 375 376 /************************************************************************ 377 * Attach the driver to this adapter. 378 */ 379 static int 380 ciss_attach(device_t dev) 381 { 382 struct ciss_softc *sc; 383 int error; 384 385 debug_called(1); 386 387 #ifdef CISS_DEBUG 388 /* print structure/union sizes */ 389 debug_struct(ciss_command); 390 debug_struct(ciss_header); 391 debug_union(ciss_device_address); 392 debug_struct(ciss_cdb); 393 debug_struct(ciss_report_cdb); 394 debug_struct(ciss_notify_cdb); 395 debug_struct(ciss_notify); 396 debug_struct(ciss_message_cdb); 397 debug_struct(ciss_error_info_pointer); 398 debug_struct(ciss_error_info); 399 debug_struct(ciss_sg_entry); 400 debug_struct(ciss_config_table); 401 debug_struct(ciss_bmic_cdb); 402 debug_struct(ciss_bmic_id_ldrive); 403 debug_struct(ciss_bmic_id_lstatus); 404 debug_struct(ciss_bmic_id_table); 405 debug_struct(ciss_bmic_id_pdrive); 406 debug_struct(ciss_bmic_blink_pdrive); 407 debug_struct(ciss_bmic_flush_cache); 408 debug_const(CISS_MAX_REQUESTS); 409 debug_const(CISS_MAX_LOGICAL); 410 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 411 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 412 debug_const(CISS_COMMAND_ALLOC_SIZE); 413 debug_const(CISS_COMMAND_SG_LENGTH); 414 415 debug_type(cciss_pci_info_struct); 416 debug_type(cciss_coalint_struct); 417 debug_type(cciss_coalint_struct); 418 debug_type(NodeName_type); 419 debug_type(NodeName_type); 420 debug_type(Heartbeat_type); 421 debug_type(BusTypes_type); 422 debug_type(FirmwareVer_type); 423 debug_type(DriverVer_type); 424 debug_type(IOCTL_Command_struct); 425 #endif 426 427 sc = device_get_softc(dev); 428 sc->ciss_dev = dev; 429 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 430 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 431 432 /* 433 * Do PCI-specific init. 434 */ 435 if ((error = ciss_init_pci(sc)) != 0) 436 goto out; 437 438 /* 439 * Initialise driver queues. 440 */ 441 ciss_initq_free(sc); 442 ciss_initq_notify(sc); 443 444 /* 445 * Initalize device sysctls. 446 */ 447 ciss_init_sysctl(sc); 448 449 /* 450 * Initialise command/request pool. 451 */ 452 if ((error = ciss_init_requests(sc)) != 0) 453 goto out; 454 455 /* 456 * Get adapter information. 457 */ 458 if ((error = ciss_identify_adapter(sc)) != 0) 459 goto out; 460 461 /* 462 * Find all the physical devices. 463 */ 464 if ((error = ciss_init_physical(sc)) != 0) 465 goto out; 466 467 /* 468 * Build our private table of logical devices. 469 */ 470 if ((error = ciss_init_logical(sc)) != 0) 471 goto out; 472 473 /* 474 * Enable interrupts so that the CAM scan can complete. 475 */ 476 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 477 478 /* 479 * Initialise the CAM interface. 480 */ 481 if ((error = ciss_cam_init(sc)) != 0) 482 goto out; 483 484 /* 485 * Start the heartbeat routine and event chain. 486 */ 487 ciss_periodic(sc); 488 489 /* 490 * Create the control device. 491 */ 492 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 493 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 494 "ciss%d", device_get_unit(sc->ciss_dev)); 495 sc->ciss_dev_t->si_drv1 = sc; 496 497 /* 498 * The adapter is running; synchronous commands can now sleep 499 * waiting for an interrupt to signal completion. 500 */ 501 sc->ciss_flags |= CISS_FLAG_RUNNING; 502 503 ciss_spawn_notify_thread(sc); 504 505 error = 0; 506 out: 507 if (error != 0) { 508 /* ciss_free() expects the mutex to be held */ 509 mtx_lock(&sc->ciss_mtx); 510 ciss_free(sc); 511 } 512 return(error); 513 } 514 515 /************************************************************************ 516 * Detach the driver from this adapter. 517 */ 518 static int 519 ciss_detach(device_t dev) 520 { 521 struct ciss_softc *sc = device_get_softc(dev); 522 523 debug_called(1); 524 525 mtx_lock(&sc->ciss_mtx); 526 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 527 mtx_unlock(&sc->ciss_mtx); 528 return (EBUSY); 529 } 530 531 /* flush adapter cache */ 532 ciss_flush_adapter(sc); 533 534 /* release all resources. The mutex is released and freed here too. */ 535 ciss_free(sc); 536 537 return(0); 538 } 539 540 /************************************************************************ 541 * Prepare adapter for system shutdown. 542 */ 543 static int 544 ciss_shutdown(device_t dev) 545 { 546 struct ciss_softc *sc = device_get_softc(dev); 547 548 debug_called(1); 549 550 mtx_lock(&sc->ciss_mtx); 551 /* flush adapter cache */ 552 ciss_flush_adapter(sc); 553 554 if (sc->ciss_soft_reset) 555 ciss_soft_reset(sc); 556 mtx_unlock(&sc->ciss_mtx); 557 558 return(0); 559 } 560 561 static void 562 ciss_init_sysctl(struct ciss_softc *sc) 563 { 564 565 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 566 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 567 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 568 } 569 570 /************************************************************************ 571 * Perform PCI-specific attachment actions. 572 */ 573 static int 574 ciss_init_pci(struct ciss_softc *sc) 575 { 576 uintptr_t cbase, csize, cofs; 577 uint32_t method, supported_methods; 578 int error, sqmask, i; 579 void *intr; 580 581 debug_called(1); 582 583 /* 584 * Work out adapter type. 585 */ 586 i = ciss_lookup(sc->ciss_dev); 587 if (i < 0) { 588 ciss_printf(sc, "unknown adapter type\n"); 589 return (ENXIO); 590 } 591 592 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 593 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 594 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 595 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 596 } else { 597 /* 598 * XXX Big hammer, masks/unmasks all possible interrupts. This should 599 * work on all hardware variants. Need to add code to handle the 600 * "controller crashed" interupt bit that this unmasks. 601 */ 602 sqmask = ~0; 603 } 604 605 /* 606 * Allocate register window first (we need this to find the config 607 * struct). 608 */ 609 error = ENXIO; 610 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 611 if ((sc->ciss_regs_resource = 612 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 613 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 614 ciss_printf(sc, "can't allocate register window\n"); 615 return(ENXIO); 616 } 617 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 618 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 619 620 /* 621 * Find the BAR holding the config structure. If it's not the one 622 * we already mapped for registers, map it too. 623 */ 624 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 625 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 626 if ((sc->ciss_cfg_resource = 627 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 628 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 629 ciss_printf(sc, "can't allocate config window\n"); 630 return(ENXIO); 631 } 632 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 633 csize = rman_get_end(sc->ciss_cfg_resource) - 634 rman_get_start(sc->ciss_cfg_resource) + 1; 635 } else { 636 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 637 csize = rman_get_end(sc->ciss_regs_resource) - 638 rman_get_start(sc->ciss_regs_resource) + 1; 639 } 640 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 641 642 /* 643 * Use the base/size/offset values we just calculated to 644 * sanity-check the config structure. If it's OK, point to it. 645 */ 646 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 647 ciss_printf(sc, "config table outside window\n"); 648 return(ENXIO); 649 } 650 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 651 debug(1, "config struct at %p", sc->ciss_cfg); 652 653 /* 654 * Calculate the number of request structures/commands we are 655 * going to provide for this adapter. 656 */ 657 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 658 659 /* 660 * Validate the config structure. If we supported other transport 661 * methods, we could select amongst them at this point in time. 662 */ 663 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 664 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 665 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 666 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 667 return(ENXIO); 668 } 669 670 /* 671 * Select the mode of operation, prefer Performant. 672 */ 673 if (!(sc->ciss_cfg->supported_methods & 674 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 675 ciss_printf(sc, "No supported transport layers: 0x%x\n", 676 sc->ciss_cfg->supported_methods); 677 } 678 679 switch (ciss_force_transport) { 680 case 1: 681 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 682 break; 683 case 2: 684 supported_methods = CISS_TRANSPORT_METHOD_PERF; 685 break; 686 default: 687 /* 688 * Override the capabilities of the BOARD and specify SIMPLE 689 * MODE 690 */ 691 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 692 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 693 else 694 supported_methods = sc->ciss_cfg->supported_methods; 695 break; 696 } 697 698 setup: 699 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 700 method = CISS_TRANSPORT_METHOD_PERF; 701 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 702 sc->ciss_cfg->transport_offset); 703 if (ciss_init_perf(sc)) { 704 supported_methods &= ~method; 705 goto setup; 706 } 707 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 708 method = CISS_TRANSPORT_METHOD_SIMPLE; 709 } else { 710 ciss_printf(sc, "No supported transport methods: 0x%x\n", 711 sc->ciss_cfg->supported_methods); 712 return(ENXIO); 713 } 714 715 /* 716 * Tell it we're using the low 4GB of RAM. Set the default interrupt 717 * coalescing options. 718 */ 719 sc->ciss_cfg->requested_method = method; 720 sc->ciss_cfg->command_physlimit = 0; 721 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 722 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 723 724 #ifdef __i386__ 725 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 726 #endif 727 728 if (ciss_update_config(sc)) { 729 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 730 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 731 return(ENXIO); 732 } 733 if ((sc->ciss_cfg->active_method & method) == 0) { 734 supported_methods &= ~method; 735 if (supported_methods == 0) { 736 ciss_printf(sc, "adapter refuses to go into available transports " 737 "mode (0x%x, 0x%x)\n", supported_methods, 738 sc->ciss_cfg->active_method); 739 return(ENXIO); 740 } else 741 goto setup; 742 } 743 744 /* 745 * Wait for the adapter to come ready. 746 */ 747 if ((error = ciss_wait_adapter(sc)) != 0) 748 return(error); 749 750 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 751 * interrupts have a rid of 0, this will be overridden if MSIX is used. 752 */ 753 sc->ciss_irq_rid[0] = 0; 754 if (method == CISS_TRANSPORT_METHOD_PERF) { 755 ciss_printf(sc, "PERFORMANT Transport\n"); 756 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 757 intr = ciss_perf_msi_intr; 758 } else { 759 intr = ciss_perf_intr; 760 } 761 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 762 * Unfortunately, there is no good way to know if this is a SAS 763 * controller. Hopefully enabling this bit universally will work OK. 764 * It seems to work fine for SA6i controllers. 765 */ 766 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 767 768 } else { 769 ciss_printf(sc, "SIMPLE Transport\n"); 770 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 771 if (ciss_force_interrupt == 2) 772 /* If this fails, we automatically revert to INTx */ 773 ciss_setup_msix(sc); 774 sc->ciss_perf = NULL; 775 intr = ciss_intr; 776 sc->ciss_interrupt_mask = sqmask; 777 } 778 779 /* 780 * Turn off interrupts before we go routing anything. 781 */ 782 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 783 784 /* 785 * Allocate and set up our interrupt. 786 */ 787 if ((sc->ciss_irq_resource = 788 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 789 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 790 ciss_printf(sc, "can't allocate interrupt\n"); 791 return(ENXIO); 792 } 793 794 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 795 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 796 &sc->ciss_intr)) { 797 ciss_printf(sc, "can't set up interrupt\n"); 798 return(ENXIO); 799 } 800 801 /* 802 * Allocate the parent bus DMA tag appropriate for our PCI 803 * interface. 804 * 805 * Note that "simple" adapters can only address within a 32-bit 806 * span. 807 */ 808 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 809 1, 0, /* alignment, boundary */ 810 BUS_SPACE_MAXADDR, /* lowaddr */ 811 BUS_SPACE_MAXADDR, /* highaddr */ 812 NULL, NULL, /* filter, filterarg */ 813 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 814 CISS_MAX_SG_ELEMENTS, /* nsegments */ 815 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 816 0, /* flags */ 817 NULL, NULL, /* lockfunc, lockarg */ 818 &sc->ciss_parent_dmat)) { 819 ciss_printf(sc, "can't allocate parent DMA tag\n"); 820 return(ENOMEM); 821 } 822 823 /* 824 * Create DMA tag for mapping buffers into adapter-addressable 825 * space. 826 */ 827 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 828 1, 0, /* alignment, boundary */ 829 BUS_SPACE_MAXADDR, /* lowaddr */ 830 BUS_SPACE_MAXADDR, /* highaddr */ 831 NULL, NULL, /* filter, filterarg */ 832 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 833 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 834 BUS_DMA_ALLOCNOW, /* flags */ 835 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 836 &sc->ciss_buffer_dmat)) { 837 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 838 return(ENOMEM); 839 } 840 return(0); 841 } 842 843 /************************************************************************ 844 * Setup MSI/MSIX operation (Performant only) 845 * Four interrupts are available, but we only use 1 right now. If MSI-X 846 * isn't avaialble, try using MSI instead. 847 */ 848 static int 849 ciss_setup_msix(struct ciss_softc *sc) 850 { 851 int val, i; 852 853 /* Weed out devices that don't actually support MSI */ 854 i = ciss_lookup(sc->ciss_dev); 855 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 856 return (EINVAL); 857 858 /* 859 * Only need to use the minimum number of MSI vectors, as the driver 860 * doesn't support directed MSIX interrupts. 861 */ 862 val = pci_msix_count(sc->ciss_dev); 863 if (val < CISS_MSI_COUNT) { 864 val = pci_msi_count(sc->ciss_dev); 865 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 866 if (val < CISS_MSI_COUNT) 867 return (EINVAL); 868 } 869 val = MIN(val, CISS_MSI_COUNT); 870 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 871 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 872 return (EINVAL); 873 } 874 875 sc->ciss_msi = val; 876 if (bootverbose) 877 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 878 (val != 1) ? "s" : ""); 879 880 for (i = 0; i < val; i++) 881 sc->ciss_irq_rid[i] = i + 1; 882 883 return (0); 884 885 } 886 887 /************************************************************************ 888 * Setup the Performant structures. 889 */ 890 static int 891 ciss_init_perf(struct ciss_softc *sc) 892 { 893 struct ciss_perf_config *pc = sc->ciss_perf; 894 int reply_size; 895 896 /* 897 * Create the DMA tag for the reply queue. 898 */ 899 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 900 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 901 1, 0, /* alignment, boundary */ 902 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 903 BUS_SPACE_MAXADDR, /* highaddr */ 904 NULL, NULL, /* filter, filterarg */ 905 reply_size, 1, /* maxsize, nsegments */ 906 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 907 0, /* flags */ 908 NULL, NULL, /* lockfunc, lockarg */ 909 &sc->ciss_reply_dmat)) { 910 ciss_printf(sc, "can't allocate reply DMA tag\n"); 911 return(ENOMEM); 912 } 913 /* 914 * Allocate memory and make it available for DMA. 915 */ 916 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 917 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 918 ciss_printf(sc, "can't allocate reply memory\n"); 919 return(ENOMEM); 920 } 921 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 922 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 923 bzero(sc->ciss_reply, reply_size); 924 925 sc->ciss_cycle = 0x1; 926 sc->ciss_rqidx = 0; 927 928 /* 929 * Preload the fetch table with common command sizes. This allows the 930 * hardware to not waste bus cycles for typical i/o commands, but also not 931 * tax the driver to be too exact in choosing sizes. The table is optimized 932 * for page-aligned i/o's, but since most i/o comes from the various pagers, 933 * it's a reasonable assumption to make. 934 */ 935 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 936 pc->fetch_count[CISS_SG_FETCH_1] = 937 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 938 pc->fetch_count[CISS_SG_FETCH_2] = 939 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 940 pc->fetch_count[CISS_SG_FETCH_4] = 941 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 942 pc->fetch_count[CISS_SG_FETCH_8] = 943 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 944 pc->fetch_count[CISS_SG_FETCH_16] = 945 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 946 pc->fetch_count[CISS_SG_FETCH_32] = 947 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 948 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 949 950 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 951 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 952 pc->rq_bank_hi = 0; 953 pc->rq_bank_lo = 0; 954 pc->rq[0].rq_addr_hi = 0x0; 955 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 956 957 return(0); 958 } 959 960 /************************************************************************ 961 * Wait for the adapter to come ready. 962 */ 963 static int 964 ciss_wait_adapter(struct ciss_softc *sc) 965 { 966 int i; 967 968 debug_called(1); 969 970 /* 971 * Wait for the adapter to come ready. 972 */ 973 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 974 ciss_printf(sc, "waiting for adapter to come ready...\n"); 975 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 976 DELAY(1000000); /* one second */ 977 if (i > 30) { 978 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 979 return(EIO); 980 } 981 } 982 } 983 return(0); 984 } 985 986 /************************************************************************ 987 * Flush the adapter cache. 988 */ 989 static int 990 ciss_flush_adapter(struct ciss_softc *sc) 991 { 992 struct ciss_request *cr; 993 struct ciss_bmic_flush_cache *cbfc; 994 int error, command_status; 995 996 debug_called(1); 997 998 cr = NULL; 999 cbfc = NULL; 1000 1001 /* 1002 * Build a BMIC request to flush the cache. We don't disable 1003 * it, as we may be going to do more I/O (eg. we are emulating 1004 * the Synchronise Cache command). 1005 */ 1006 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1007 error = ENOMEM; 1008 goto out; 1009 } 1010 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1011 (void **)&cbfc, sizeof(*cbfc))) != 0) 1012 goto out; 1013 1014 /* 1015 * Submit the request and wait for it to complete. 1016 */ 1017 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1018 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1019 goto out; 1020 } 1021 1022 /* 1023 * Check response. 1024 */ 1025 ciss_report_request(cr, &command_status, NULL); 1026 switch(command_status) { 1027 case CISS_CMD_STATUS_SUCCESS: 1028 break; 1029 default: 1030 ciss_printf(sc, "error flushing cache (%s)\n", 1031 ciss_name_command_status(command_status)); 1032 error = EIO; 1033 goto out; 1034 } 1035 1036 out: 1037 if (cbfc != NULL) 1038 free(cbfc, CISS_MALLOC_CLASS); 1039 if (cr != NULL) 1040 ciss_release_request(cr); 1041 return(error); 1042 } 1043 1044 static void 1045 ciss_soft_reset(struct ciss_softc *sc) 1046 { 1047 struct ciss_request *cr = NULL; 1048 struct ciss_command *cc; 1049 int i, error = 0; 1050 1051 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1052 /* only reset proxy controllers */ 1053 if (sc->ciss_controllers[i].physical.bus == 0) 1054 continue; 1055 1056 if ((error = ciss_get_request(sc, &cr)) != 0) 1057 break; 1058 1059 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1060 NULL, 0)) != 0) 1061 break; 1062 1063 cc = cr->cr_cc; 1064 cc->header.address = sc->ciss_controllers[i]; 1065 1066 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1067 break; 1068 1069 ciss_release_request(cr); 1070 } 1071 1072 if (error) 1073 ciss_printf(sc, "error resetting controller (%d)\n", error); 1074 1075 if (cr != NULL) 1076 ciss_release_request(cr); 1077 } 1078 1079 /************************************************************************ 1080 * Allocate memory for the adapter command structures, initialise 1081 * the request structures. 1082 * 1083 * Note that the entire set of commands are allocated in a single 1084 * contiguous slab. 1085 */ 1086 static int 1087 ciss_init_requests(struct ciss_softc *sc) 1088 { 1089 struct ciss_request *cr; 1090 int i; 1091 1092 debug_called(1); 1093 1094 if (bootverbose) 1095 ciss_printf(sc, "using %d of %d available commands\n", 1096 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1097 1098 /* 1099 * Create the DMA tag for commands. 1100 */ 1101 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1102 32, 0, /* alignment, boundary */ 1103 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1104 BUS_SPACE_MAXADDR, /* highaddr */ 1105 NULL, NULL, /* filter, filterarg */ 1106 CISS_COMMAND_ALLOC_SIZE * 1107 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1108 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1109 0, /* flags */ 1110 NULL, NULL, /* lockfunc, lockarg */ 1111 &sc->ciss_command_dmat)) { 1112 ciss_printf(sc, "can't allocate command DMA tag\n"); 1113 return(ENOMEM); 1114 } 1115 /* 1116 * Allocate memory and make it available for DMA. 1117 */ 1118 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1119 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1120 ciss_printf(sc, "can't allocate command memory\n"); 1121 return(ENOMEM); 1122 } 1123 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1124 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1125 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1126 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1127 1128 /* 1129 * Set up the request and command structures, push requests onto 1130 * the free queue. 1131 */ 1132 for (i = 1; i < sc->ciss_max_requests; i++) { 1133 cr = &sc->ciss_request[i]; 1134 cr->cr_sc = sc; 1135 cr->cr_tag = i; 1136 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1137 CISS_COMMAND_ALLOC_SIZE * i); 1138 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1139 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1140 ciss_enqueue_free(cr); 1141 } 1142 return(0); 1143 } 1144 1145 static void 1146 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1147 { 1148 uint32_t *addr; 1149 1150 addr = arg; 1151 *addr = segs[0].ds_addr; 1152 } 1153 1154 /************************************************************************ 1155 * Identify the adapter, print some information about it. 1156 */ 1157 static int 1158 ciss_identify_adapter(struct ciss_softc *sc) 1159 { 1160 struct ciss_request *cr; 1161 int error, command_status; 1162 1163 debug_called(1); 1164 1165 cr = NULL; 1166 1167 /* 1168 * Get a request, allocate storage for the adapter data. 1169 */ 1170 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1171 (void **)&sc->ciss_id, 1172 sizeof(*sc->ciss_id))) != 0) 1173 goto out; 1174 1175 /* 1176 * Submit the request and wait for it to complete. 1177 */ 1178 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1179 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1180 goto out; 1181 } 1182 1183 /* 1184 * Check response. 1185 */ 1186 ciss_report_request(cr, &command_status, NULL); 1187 switch(command_status) { 1188 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1189 break; 1190 case CISS_CMD_STATUS_DATA_UNDERRUN: 1191 case CISS_CMD_STATUS_DATA_OVERRUN: 1192 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1193 default: 1194 ciss_printf(sc, "error reading adapter information (%s)\n", 1195 ciss_name_command_status(command_status)); 1196 error = EIO; 1197 goto out; 1198 } 1199 1200 /* sanity-check reply */ 1201 if (!sc->ciss_id->big_map_supported) { 1202 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1203 error = ENXIO; 1204 goto out; 1205 } 1206 1207 #if 0 1208 /* XXX later revisions may not need this */ 1209 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1210 #endif 1211 1212 /* XXX only really required for old 5300 adapters? */ 1213 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1214 1215 /* 1216 * Earlier controller specs do not contain these config 1217 * entries, so assume that a 0 means its old and assign 1218 * these values to the defaults that were established 1219 * when this driver was developed for them 1220 */ 1221 if (sc->ciss_cfg->max_logical_supported == 0) 1222 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1223 if (sc->ciss_cfg->max_physical_supported == 0) 1224 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1225 /* print information */ 1226 if (bootverbose) { 1227 ciss_printf(sc, " %d logical drive%s configured\n", 1228 sc->ciss_id->configured_logical_drives, 1229 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1230 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1231 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1232 1233 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1234 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1235 ciss_printf(sc, " supported I/O methods 0x%b\n", 1236 sc->ciss_cfg->supported_methods, 1237 "\20\1READY\2simple\3performant\4MEMQ\n"); 1238 ciss_printf(sc, " active I/O method 0x%b\n", 1239 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1240 ciss_printf(sc, " 4G page base 0x%08x\n", 1241 sc->ciss_cfg->command_physlimit); 1242 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1243 sc->ciss_cfg->interrupt_coalesce_delay); 1244 ciss_printf(sc, " interrupt coalesce count %d\n", 1245 sc->ciss_cfg->interrupt_coalesce_count); 1246 ciss_printf(sc, " max outstanding commands %d\n", 1247 sc->ciss_cfg->max_outstanding_commands); 1248 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1249 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1250 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1251 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1252 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1253 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1254 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1255 } 1256 1257 out: 1258 if (error) { 1259 if (sc->ciss_id != NULL) { 1260 free(sc->ciss_id, CISS_MALLOC_CLASS); 1261 sc->ciss_id = NULL; 1262 } 1263 } 1264 if (cr != NULL) 1265 ciss_release_request(cr); 1266 return(error); 1267 } 1268 1269 /************************************************************************ 1270 * Helper routine for generating a list of logical and physical luns. 1271 */ 1272 static struct ciss_lun_report * 1273 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1274 { 1275 struct ciss_request *cr; 1276 struct ciss_command *cc; 1277 struct ciss_report_cdb *crc; 1278 struct ciss_lun_report *cll; 1279 int command_status; 1280 int report_size; 1281 int error = 0; 1282 1283 debug_called(1); 1284 1285 cr = NULL; 1286 cll = NULL; 1287 1288 /* 1289 * Get a request, allocate storage for the address list. 1290 */ 1291 if ((error = ciss_get_request(sc, &cr)) != 0) 1292 goto out; 1293 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1294 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1295 ciss_printf(sc, "can't allocate memory for lun report\n"); 1296 error = ENOMEM; 1297 goto out; 1298 } 1299 1300 /* 1301 * Build the Report Logical/Physical LUNs command. 1302 */ 1303 cc = cr->cr_cc; 1304 cr->cr_data = cll; 1305 cr->cr_length = report_size; 1306 cr->cr_flags = CISS_REQ_DATAIN; 1307 1308 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1309 cc->header.address.physical.bus = 0; 1310 cc->header.address.physical.target = 0; 1311 cc->cdb.cdb_length = sizeof(*crc); 1312 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1313 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1314 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1315 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1316 1317 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1318 bzero(crc, sizeof(*crc)); 1319 crc->opcode = opcode; 1320 crc->length = htonl(report_size); /* big-endian field */ 1321 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1322 1323 /* 1324 * Submit the request and wait for it to complete. (timeout 1325 * here should be much greater than above) 1326 */ 1327 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1328 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1329 goto out; 1330 } 1331 1332 /* 1333 * Check response. Note that data over/underrun is OK. 1334 */ 1335 ciss_report_request(cr, &command_status, NULL); 1336 switch(command_status) { 1337 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1338 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1339 break; 1340 case CISS_CMD_STATUS_DATA_OVERRUN: 1341 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1342 sc->ciss_cfg->max_logical_supported); 1343 break; 1344 default: 1345 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1346 ciss_name_command_status(command_status)); 1347 error = EIO; 1348 goto out; 1349 } 1350 ciss_release_request(cr); 1351 cr = NULL; 1352 1353 out: 1354 if (cr != NULL) 1355 ciss_release_request(cr); 1356 if (error && cll != NULL) { 1357 free(cll, CISS_MALLOC_CLASS); 1358 cll = NULL; 1359 } 1360 return(cll); 1361 } 1362 1363 /************************************************************************ 1364 * Find logical drives on the adapter. 1365 */ 1366 static int 1367 ciss_init_logical(struct ciss_softc *sc) 1368 { 1369 struct ciss_lun_report *cll; 1370 int error = 0, i, j; 1371 int ndrives; 1372 1373 debug_called(1); 1374 1375 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1376 sc->ciss_cfg->max_logical_supported); 1377 if (cll == NULL) { 1378 error = ENXIO; 1379 goto out; 1380 } 1381 1382 /* sanity-check reply */ 1383 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1384 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1385 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1386 ndrives, sc->ciss_cfg->max_logical_supported); 1387 error = ENXIO; 1388 goto out; 1389 } 1390 1391 /* 1392 * Save logical drive information. 1393 */ 1394 if (bootverbose) { 1395 ciss_printf(sc, "%d logical drive%s\n", 1396 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1397 } 1398 1399 sc->ciss_logical = 1400 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1401 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1402 if (sc->ciss_logical == NULL) { 1403 error = ENXIO; 1404 goto out; 1405 } 1406 1407 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1408 sc->ciss_logical[i] = 1409 malloc(sc->ciss_cfg->max_logical_supported * 1410 sizeof(struct ciss_ldrive), 1411 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1412 if (sc->ciss_logical[i] == NULL) { 1413 error = ENXIO; 1414 goto out; 1415 } 1416 1417 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1418 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1419 } 1420 1421 1422 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1423 if (i < ndrives) { 1424 struct ciss_ldrive *ld; 1425 int bus, target; 1426 1427 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1428 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1429 ld = &sc->ciss_logical[bus][target]; 1430 1431 ld->cl_address = cll->lun[i]; 1432 ld->cl_controller = &sc->ciss_controllers[bus]; 1433 if (ciss_identify_logical(sc, ld) != 0) 1434 continue; 1435 /* 1436 * If the drive has had media exchanged, we should bring it online. 1437 */ 1438 if (ld->cl_lstatus->media_exchanged) 1439 ciss_accept_media(sc, ld); 1440 1441 } 1442 } 1443 1444 out: 1445 if (cll != NULL) 1446 free(cll, CISS_MALLOC_CLASS); 1447 return(error); 1448 } 1449 1450 static int 1451 ciss_init_physical(struct ciss_softc *sc) 1452 { 1453 struct ciss_lun_report *cll; 1454 int error = 0, i; 1455 int nphys; 1456 int bus, target; 1457 1458 debug_called(1); 1459 1460 bus = 0; 1461 target = 0; 1462 1463 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1464 sc->ciss_cfg->max_physical_supported); 1465 if (cll == NULL) { 1466 error = ENXIO; 1467 goto out; 1468 } 1469 1470 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1471 1472 if (bootverbose) { 1473 ciss_printf(sc, "%d physical device%s\n", 1474 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1475 } 1476 1477 /* 1478 * Figure out the bus mapping. 1479 * Logical buses include both the local logical bus for local arrays and 1480 * proxy buses for remote arrays. Physical buses are numbered by the 1481 * controller and represent physical buses that hold physical devices. 1482 * We shift these bus numbers so that everything fits into a single flat 1483 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1484 * numbers, and the physical bus numbers are shifted to be above that. 1485 * This results in the various driver arrays being indexed as follows: 1486 * 1487 * ciss_controllers[] - indexed by logical bus 1488 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1489 * being shifted by 32. 1490 * ciss_logical[][] - indexed by logical bus 1491 * ciss_physical[][] - indexed by physical bus 1492 * 1493 * XXX This is getting more and more hackish. CISS really doesn't play 1494 * well with a standard SCSI model; devices are addressed via magic 1495 * cookies, not via b/t/l addresses. Since there is no way to store 1496 * the cookie in the CAM device object, we have to keep these lookup 1497 * tables handy so that the devices can be found quickly at the cost 1498 * of wasting memory and having a convoluted lookup scheme. This 1499 * driver should probably be converted to block interface. 1500 */ 1501 /* 1502 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1503 * controller. A proxy controller is another physical controller 1504 * behind the primary PCI controller. We need to know about this 1505 * so that BMIC commands can be properly targeted. There can be 1506 * proxy controllers attached to a single PCI controller, so 1507 * find the highest numbered one so the array can be properly 1508 * sized. 1509 */ 1510 sc->ciss_max_logical_bus = 1; 1511 for (i = 0; i < nphys; i++) { 1512 if (cll->lun[i].physical.extra_address == 0) { 1513 bus = cll->lun[i].physical.bus; 1514 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1515 } else { 1516 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1517 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1518 } 1519 } 1520 1521 sc->ciss_controllers = 1522 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1523 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1524 1525 if (sc->ciss_controllers == NULL) { 1526 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1527 error = ENOMEM; 1528 goto out; 1529 } 1530 1531 /* setup a map of controller addresses */ 1532 for (i = 0; i < nphys; i++) { 1533 if (cll->lun[i].physical.extra_address == 0) { 1534 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1535 } 1536 } 1537 1538 sc->ciss_physical = 1539 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1540 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1541 if (sc->ciss_physical == NULL) { 1542 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1543 error = ENOMEM; 1544 goto out; 1545 } 1546 1547 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1548 sc->ciss_physical[i] = 1549 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1550 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1551 if (sc->ciss_physical[i] == NULL) { 1552 ciss_printf(sc, "Could not allocate memory for target map\n"); 1553 error = ENOMEM; 1554 goto out; 1555 } 1556 } 1557 1558 ciss_filter_physical(sc, cll); 1559 1560 out: 1561 if (cll != NULL) 1562 free(cll, CISS_MALLOC_CLASS); 1563 1564 return(error); 1565 } 1566 1567 static int 1568 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1569 { 1570 u_int32_t ea; 1571 int i, nphys; 1572 int bus, target; 1573 1574 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1575 for (i = 0; i < nphys; i++) { 1576 if (cll->lun[i].physical.extra_address == 0) 1577 continue; 1578 1579 /* 1580 * Filter out devices that we don't want. Level 3 LUNs could 1581 * probably be supported, but the docs don't give enough of a 1582 * hint to know how. 1583 * 1584 * The mode field of the physical address is likely set to have 1585 * hard disks masked out. Honor it unless the user has overridden 1586 * us with the tunable. We also munge the inquiry data for these 1587 * disks so that they only show up as passthrough devices. Keeping 1588 * them visible in this fashion is useful for doing things like 1589 * flashing firmware. 1590 */ 1591 ea = cll->lun[i].physical.extra_address; 1592 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1593 (CISS_EXTRA_MODE2(ea) == 0x3)) 1594 continue; 1595 if ((ciss_expose_hidden_physical == 0) && 1596 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1597 continue; 1598 1599 /* 1600 * Note: CISS firmware numbers physical busses starting at '1', not 1601 * '0'. This numbering is internal to the firmware and is only 1602 * used as a hint here. 1603 */ 1604 bus = CISS_EXTRA_BUS2(ea) - 1; 1605 target = CISS_EXTRA_TARGET2(ea); 1606 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1607 sc->ciss_physical[bus][target].cp_online = 1; 1608 } 1609 1610 return (0); 1611 } 1612 1613 static int 1614 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1615 { 1616 struct ciss_request *cr; 1617 struct ciss_command *cc; 1618 struct scsi_inquiry *inq; 1619 int error; 1620 int command_status; 1621 1622 cr = NULL; 1623 1624 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1625 1626 if ((error = ciss_get_request(sc, &cr)) != 0) 1627 goto out; 1628 1629 cc = cr->cr_cc; 1630 cr->cr_data = &ld->cl_geometry; 1631 cr->cr_length = sizeof(ld->cl_geometry); 1632 cr->cr_flags = CISS_REQ_DATAIN; 1633 1634 cc->header.address = ld->cl_address; 1635 cc->cdb.cdb_length = 6; 1636 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1637 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1638 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1639 cc->cdb.timeout = 30; 1640 1641 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1642 inq->opcode = INQUIRY; 1643 inq->byte2 = SI_EVPD; 1644 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1645 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1646 1647 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1648 ciss_printf(sc, "error getting geometry (%d)\n", error); 1649 goto out; 1650 } 1651 1652 ciss_report_request(cr, &command_status, NULL); 1653 switch(command_status) { 1654 case CISS_CMD_STATUS_SUCCESS: 1655 case CISS_CMD_STATUS_DATA_UNDERRUN: 1656 break; 1657 case CISS_CMD_STATUS_DATA_OVERRUN: 1658 ciss_printf(sc, "WARNING: Data overrun\n"); 1659 break; 1660 default: 1661 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1662 ciss_name_command_status(command_status)); 1663 break; 1664 } 1665 1666 out: 1667 if (cr != NULL) 1668 ciss_release_request(cr); 1669 return(error); 1670 } 1671 /************************************************************************ 1672 * Identify a logical drive, initialise state related to it. 1673 */ 1674 static int 1675 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1676 { 1677 struct ciss_request *cr; 1678 struct ciss_command *cc; 1679 struct ciss_bmic_cdb *cbc; 1680 int error, command_status; 1681 1682 debug_called(1); 1683 1684 cr = NULL; 1685 1686 /* 1687 * Build a BMIC request to fetch the drive ID. 1688 */ 1689 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1690 (void **)&ld->cl_ldrive, 1691 sizeof(*ld->cl_ldrive))) != 0) 1692 goto out; 1693 cc = cr->cr_cc; 1694 cc->header.address = *ld->cl_controller; /* target controller */ 1695 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1696 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1697 1698 /* 1699 * Submit the request and wait for it to complete. 1700 */ 1701 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1702 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1703 goto out; 1704 } 1705 1706 /* 1707 * Check response. 1708 */ 1709 ciss_report_request(cr, &command_status, NULL); 1710 switch(command_status) { 1711 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1712 break; 1713 case CISS_CMD_STATUS_DATA_UNDERRUN: 1714 case CISS_CMD_STATUS_DATA_OVERRUN: 1715 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1716 default: 1717 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1718 ciss_name_command_status(command_status)); 1719 error = EIO; 1720 goto out; 1721 } 1722 ciss_release_request(cr); 1723 cr = NULL; 1724 1725 /* 1726 * Build a CISS BMIC command to get the logical drive status. 1727 */ 1728 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1729 goto out; 1730 1731 /* 1732 * Get the logical drive geometry. 1733 */ 1734 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1735 goto out; 1736 1737 /* 1738 * Print the drive's basic characteristics. 1739 */ 1740 if (bootverbose) { 1741 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1742 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1743 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1744 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1745 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1746 ld->cl_ldrive->block_size)); 1747 1748 ciss_print_ldrive(sc, ld); 1749 } 1750 out: 1751 if (error != 0) { 1752 /* make the drive not-exist */ 1753 ld->cl_status = CISS_LD_NONEXISTENT; 1754 if (ld->cl_ldrive != NULL) { 1755 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1756 ld->cl_ldrive = NULL; 1757 } 1758 if (ld->cl_lstatus != NULL) { 1759 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1760 ld->cl_lstatus = NULL; 1761 } 1762 } 1763 if (cr != NULL) 1764 ciss_release_request(cr); 1765 1766 return(error); 1767 } 1768 1769 /************************************************************************ 1770 * Get status for a logical drive. 1771 * 1772 * XXX should we also do this in response to Test Unit Ready? 1773 */ 1774 static int 1775 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1776 { 1777 struct ciss_request *cr; 1778 struct ciss_command *cc; 1779 struct ciss_bmic_cdb *cbc; 1780 int error, command_status; 1781 1782 /* 1783 * Build a CISS BMIC command to get the logical drive status. 1784 */ 1785 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1786 (void **)&ld->cl_lstatus, 1787 sizeof(*ld->cl_lstatus))) != 0) 1788 goto out; 1789 cc = cr->cr_cc; 1790 cc->header.address = *ld->cl_controller; /* target controller */ 1791 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1792 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1793 1794 /* 1795 * Submit the request and wait for it to complete. 1796 */ 1797 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1798 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1799 goto out; 1800 } 1801 1802 /* 1803 * Check response. 1804 */ 1805 ciss_report_request(cr, &command_status, NULL); 1806 switch(command_status) { 1807 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1808 break; 1809 case CISS_CMD_STATUS_DATA_UNDERRUN: 1810 case CISS_CMD_STATUS_DATA_OVERRUN: 1811 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1812 default: 1813 ciss_printf(sc, "error reading logical drive status (%s)\n", 1814 ciss_name_command_status(command_status)); 1815 error = EIO; 1816 goto out; 1817 } 1818 1819 /* 1820 * Set the drive's summary status based on the returned status. 1821 * 1822 * XXX testing shows that a failed JBOD drive comes back at next 1823 * boot in "queued for expansion" mode. WTF? 1824 */ 1825 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1826 1827 out: 1828 if (cr != NULL) 1829 ciss_release_request(cr); 1830 return(error); 1831 } 1832 1833 /************************************************************************ 1834 * Notify the adapter of a config update. 1835 */ 1836 static int 1837 ciss_update_config(struct ciss_softc *sc) 1838 { 1839 int i; 1840 1841 debug_called(1); 1842 1843 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1844 for (i = 0; i < 1000; i++) { 1845 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1846 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1847 return(0); 1848 } 1849 DELAY(1000); 1850 } 1851 return(1); 1852 } 1853 1854 /************************************************************************ 1855 * Accept new media into a logical drive. 1856 * 1857 * XXX The drive has previously been offline; it would be good if we 1858 * could make sure it's not open right now. 1859 */ 1860 static int 1861 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1862 { 1863 struct ciss_request *cr; 1864 struct ciss_command *cc; 1865 struct ciss_bmic_cdb *cbc; 1866 int command_status; 1867 int error = 0, ldrive; 1868 1869 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1870 1871 debug(0, "bringing logical drive %d back online", ldrive); 1872 1873 /* 1874 * Build a CISS BMIC command to bring the drive back online. 1875 */ 1876 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1877 NULL, 0)) != 0) 1878 goto out; 1879 cc = cr->cr_cc; 1880 cc->header.address = *ld->cl_controller; /* target controller */ 1881 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1882 cbc->log_drive = ldrive; 1883 1884 /* 1885 * Submit the request and wait for it to complete. 1886 */ 1887 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1888 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1889 goto out; 1890 } 1891 1892 /* 1893 * Check response. 1894 */ 1895 ciss_report_request(cr, &command_status, NULL); 1896 switch(command_status) { 1897 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1898 /* we should get a logical drive status changed event here */ 1899 break; 1900 default: 1901 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1902 ciss_name_command_status(command_status)); 1903 break; 1904 } 1905 1906 out: 1907 if (cr != NULL) 1908 ciss_release_request(cr); 1909 return(error); 1910 } 1911 1912 /************************************************************************ 1913 * Release adapter resources. 1914 */ 1915 static void 1916 ciss_free(struct ciss_softc *sc) 1917 { 1918 struct ciss_request *cr; 1919 int i, j; 1920 1921 debug_called(1); 1922 1923 /* we're going away */ 1924 sc->ciss_flags |= CISS_FLAG_ABORTING; 1925 1926 /* terminate the periodic heartbeat routine */ 1927 callout_stop(&sc->ciss_periodic); 1928 1929 /* cancel the Event Notify chain */ 1930 ciss_notify_abort(sc); 1931 1932 ciss_kill_notify_thread(sc); 1933 1934 /* disconnect from CAM */ 1935 if (sc->ciss_cam_sim) { 1936 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1937 if (sc->ciss_cam_sim[i]) { 1938 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1939 cam_sim_free(sc->ciss_cam_sim[i], 0); 1940 } 1941 } 1942 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1943 CISS_PHYSICAL_BASE; i++) { 1944 if (sc->ciss_cam_sim[i]) { 1945 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1946 cam_sim_free(sc->ciss_cam_sim[i], 0); 1947 } 1948 } 1949 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1950 } 1951 if (sc->ciss_cam_devq) 1952 cam_simq_free(sc->ciss_cam_devq); 1953 1954 /* remove the control device */ 1955 mtx_unlock(&sc->ciss_mtx); 1956 if (sc->ciss_dev_t != NULL) 1957 destroy_dev(sc->ciss_dev_t); 1958 1959 /* Final cleanup of the callout. */ 1960 callout_drain(&sc->ciss_periodic); 1961 mtx_destroy(&sc->ciss_mtx); 1962 1963 /* free the controller data */ 1964 if (sc->ciss_id != NULL) 1965 free(sc->ciss_id, CISS_MALLOC_CLASS); 1966 1967 /* release I/O resources */ 1968 if (sc->ciss_regs_resource != NULL) 1969 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1970 sc->ciss_regs_rid, sc->ciss_regs_resource); 1971 if (sc->ciss_cfg_resource != NULL) 1972 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1973 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1974 if (sc->ciss_intr != NULL) 1975 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1976 if (sc->ciss_irq_resource != NULL) 1977 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1978 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1979 if (sc->ciss_msi) 1980 pci_release_msi(sc->ciss_dev); 1981 1982 while ((cr = ciss_dequeue_free(sc)) != NULL) 1983 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1984 if (sc->ciss_buffer_dmat) 1985 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1986 1987 /* destroy command memory and DMA tag */ 1988 if (sc->ciss_command != NULL) { 1989 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1990 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1991 } 1992 if (sc->ciss_command_dmat) 1993 bus_dma_tag_destroy(sc->ciss_command_dmat); 1994 1995 if (sc->ciss_reply) { 1996 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1997 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1998 } 1999 if (sc->ciss_reply_dmat) 2000 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2001 2002 /* destroy DMA tags */ 2003 if (sc->ciss_parent_dmat) 2004 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2005 if (sc->ciss_logical) { 2006 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 2007 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2008 if (sc->ciss_logical[i][j].cl_ldrive) 2009 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2010 if (sc->ciss_logical[i][j].cl_lstatus) 2011 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2012 } 2013 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2014 } 2015 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2016 } 2017 2018 if (sc->ciss_physical) { 2019 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2020 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2021 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2022 } 2023 2024 if (sc->ciss_controllers) 2025 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2026 2027 } 2028 2029 /************************************************************************ 2030 * Give a command to the adapter. 2031 * 2032 * Note that this uses the simple transport layer directly. If we 2033 * want to add support for other layers, we'll need a switch of some 2034 * sort. 2035 * 2036 * Note that the simple transport layer has no way of refusing a 2037 * command; we only have as many request structures as the adapter 2038 * supports commands, so we don't have to check (this presumes that 2039 * the adapter can handle commands as fast as we throw them at it). 2040 */ 2041 static int 2042 ciss_start(struct ciss_request *cr) 2043 { 2044 struct ciss_command *cc; /* XXX debugging only */ 2045 int error; 2046 2047 cc = cr->cr_cc; 2048 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2049 2050 /* 2051 * Map the request's data. 2052 */ 2053 if ((error = ciss_map_request(cr))) 2054 return(error); 2055 2056 #if 0 2057 ciss_print_request(cr); 2058 #endif 2059 2060 return(0); 2061 } 2062 2063 /************************************************************************ 2064 * Fetch completed request(s) from the adapter, queue them for 2065 * completion handling. 2066 * 2067 * Note that this uses the simple transport layer directly. If we 2068 * want to add support for other layers, we'll need a switch of some 2069 * sort. 2070 * 2071 * Note that the simple transport mechanism does not require any 2072 * reentrancy protection; the OPQ read is atomic. If there is a 2073 * chance of a race with something else that might move the request 2074 * off the busy list, then we will have to lock against that 2075 * (eg. timeouts, etc.) 2076 */ 2077 static void 2078 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2079 { 2080 struct ciss_request *cr; 2081 struct ciss_command *cc; 2082 u_int32_t tag, index; 2083 2084 debug_called(3); 2085 2086 /* 2087 * Loop quickly taking requests from the adapter and moving them 2088 * to the completed queue. 2089 */ 2090 for (;;) { 2091 2092 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2093 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2094 break; 2095 index = tag >> 2; 2096 debug(2, "completed command %d%s", index, 2097 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2098 if (index >= sc->ciss_max_requests) { 2099 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2100 continue; 2101 } 2102 cr = &(sc->ciss_request[index]); 2103 cc = cr->cr_cc; 2104 cc->header.host_tag = tag; /* not updated by adapter */ 2105 ciss_enqueue_complete(cr, qh); 2106 } 2107 2108 } 2109 2110 static void 2111 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2112 { 2113 struct ciss_request *cr; 2114 struct ciss_command *cc; 2115 u_int32_t tag, index; 2116 2117 debug_called(3); 2118 2119 /* 2120 * Loop quickly taking requests from the adapter and moving them 2121 * to the completed queue. 2122 */ 2123 for (;;) { 2124 tag = sc->ciss_reply[sc->ciss_rqidx]; 2125 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2126 break; 2127 index = tag >> 2; 2128 debug(2, "completed command %d%s\n", index, 2129 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2130 if (index < sc->ciss_max_requests) { 2131 cr = &(sc->ciss_request[index]); 2132 cc = cr->cr_cc; 2133 cc->header.host_tag = tag; /* not updated by adapter */ 2134 ciss_enqueue_complete(cr, qh); 2135 } else { 2136 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2137 } 2138 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2139 sc->ciss_rqidx = 0; 2140 sc->ciss_cycle ^= 1; 2141 } 2142 } 2143 2144 } 2145 2146 /************************************************************************ 2147 * Take an interrupt from the adapter. 2148 */ 2149 static void 2150 ciss_intr(void *arg) 2151 { 2152 cr_qhead_t qh; 2153 struct ciss_softc *sc = (struct ciss_softc *)arg; 2154 2155 /* 2156 * The only interrupt we recognise indicates that there are 2157 * entries in the outbound post queue. 2158 */ 2159 STAILQ_INIT(&qh); 2160 ciss_done(sc, &qh); 2161 mtx_lock(&sc->ciss_mtx); 2162 ciss_complete(sc, &qh); 2163 mtx_unlock(&sc->ciss_mtx); 2164 } 2165 2166 static void 2167 ciss_perf_intr(void *arg) 2168 { 2169 struct ciss_softc *sc = (struct ciss_softc *)arg; 2170 2171 /* Clear the interrupt and flush the bridges. Docs say that the flush 2172 * needs to be done twice, which doesn't seem right. 2173 */ 2174 CISS_TL_PERF_CLEAR_INT(sc); 2175 CISS_TL_PERF_FLUSH_INT(sc); 2176 2177 ciss_perf_msi_intr(sc); 2178 } 2179 2180 static void 2181 ciss_perf_msi_intr(void *arg) 2182 { 2183 cr_qhead_t qh; 2184 struct ciss_softc *sc = (struct ciss_softc *)arg; 2185 2186 STAILQ_INIT(&qh); 2187 ciss_perf_done(sc, &qh); 2188 mtx_lock(&sc->ciss_mtx); 2189 ciss_complete(sc, &qh); 2190 mtx_unlock(&sc->ciss_mtx); 2191 } 2192 2193 2194 /************************************************************************ 2195 * Process completed requests. 2196 * 2197 * Requests can be completed in three fashions: 2198 * 2199 * - by invoking a callback function (cr_complete is non-null) 2200 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2201 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2202 */ 2203 static void 2204 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2205 { 2206 struct ciss_request *cr; 2207 2208 debug_called(2); 2209 2210 /* 2211 * Loop taking requests off the completed queue and performing 2212 * completion processing on them. 2213 */ 2214 for (;;) { 2215 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2216 break; 2217 ciss_unmap_request(cr); 2218 2219 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2220 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2221 cr->cr_flags &= ~CISS_REQ_BUSY; 2222 2223 /* 2224 * If the request has a callback, invoke it. 2225 */ 2226 if (cr->cr_complete != NULL) { 2227 cr->cr_complete(cr); 2228 continue; 2229 } 2230 2231 /* 2232 * If someone is sleeping on this request, wake them up. 2233 */ 2234 if (cr->cr_flags & CISS_REQ_SLEEP) { 2235 cr->cr_flags &= ~CISS_REQ_SLEEP; 2236 wakeup(cr); 2237 continue; 2238 } 2239 2240 /* 2241 * If someone is polling this request for completion, signal. 2242 */ 2243 if (cr->cr_flags & CISS_REQ_POLL) { 2244 cr->cr_flags &= ~CISS_REQ_POLL; 2245 continue; 2246 } 2247 2248 /* 2249 * Give up and throw the request back on the free queue. This 2250 * should never happen; resources will probably be lost. 2251 */ 2252 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2253 ciss_enqueue_free(cr); 2254 } 2255 } 2256 2257 /************************************************************************ 2258 * Report on the completion status of a request, and pass back SCSI 2259 * and command status values. 2260 */ 2261 static int 2262 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2263 { 2264 struct ciss_command *cc; 2265 struct ciss_error_info *ce; 2266 2267 debug_called(2); 2268 2269 cc = cr->cr_cc; 2270 ce = (struct ciss_error_info *)&(cc->sg[0]); 2271 2272 /* 2273 * We don't consider data under/overrun an error for the Report 2274 * Logical/Physical LUNs commands. 2275 */ 2276 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2277 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2278 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2279 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2280 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2281 (cc->cdb.cdb[0] == INQUIRY))) { 2282 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2283 debug(2, "ignoring irrelevant under/overrun error"); 2284 } 2285 2286 /* 2287 * Check the command's error bit, if clear, there's no status and 2288 * everything is OK. 2289 */ 2290 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2291 if (scsi_status != NULL) 2292 *scsi_status = SCSI_STATUS_OK; 2293 if (command_status != NULL) 2294 *command_status = CISS_CMD_STATUS_SUCCESS; 2295 return(0); 2296 } else { 2297 if (command_status != NULL) 2298 *command_status = ce->command_status; 2299 if (scsi_status != NULL) { 2300 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2301 *scsi_status = ce->scsi_status; 2302 } else { 2303 *scsi_status = -1; 2304 } 2305 } 2306 if (bootverbose) 2307 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2308 ce->command_status, ciss_name_command_status(ce->command_status), 2309 ce->scsi_status); 2310 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2311 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2312 ce->additional_error_info.invalid_command.offense_size, 2313 ce->additional_error_info.invalid_command.offense_offset, 2314 ce->additional_error_info.invalid_command.offense_value, 2315 func); 2316 } 2317 } 2318 #if 0 2319 ciss_print_request(cr); 2320 #endif 2321 return(1); 2322 } 2323 2324 /************************************************************************ 2325 * Issue a request and don't return until it's completed. 2326 * 2327 * Depending on adapter status, we may poll or sleep waiting for 2328 * completion. 2329 */ 2330 static int 2331 ciss_synch_request(struct ciss_request *cr, int timeout) 2332 { 2333 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2334 return(ciss_wait_request(cr, timeout)); 2335 } else { 2336 return(ciss_poll_request(cr, timeout)); 2337 } 2338 } 2339 2340 /************************************************************************ 2341 * Issue a request and poll for completion. 2342 * 2343 * Timeout in milliseconds. 2344 */ 2345 static int 2346 ciss_poll_request(struct ciss_request *cr, int timeout) 2347 { 2348 cr_qhead_t qh; 2349 struct ciss_softc *sc; 2350 int error; 2351 2352 debug_called(2); 2353 2354 STAILQ_INIT(&qh); 2355 sc = cr->cr_sc; 2356 cr->cr_flags |= CISS_REQ_POLL; 2357 if ((error = ciss_start(cr)) != 0) 2358 return(error); 2359 2360 do { 2361 if (sc->ciss_perf) 2362 ciss_perf_done(sc, &qh); 2363 else 2364 ciss_done(sc, &qh); 2365 ciss_complete(sc, &qh); 2366 if (!(cr->cr_flags & CISS_REQ_POLL)) 2367 return(0); 2368 DELAY(1000); 2369 } while (timeout-- >= 0); 2370 return(EWOULDBLOCK); 2371 } 2372 2373 /************************************************************************ 2374 * Issue a request and sleep waiting for completion. 2375 * 2376 * Timeout in milliseconds. Note that a spurious wakeup will reset 2377 * the timeout. 2378 */ 2379 static int 2380 ciss_wait_request(struct ciss_request *cr, int timeout) 2381 { 2382 int error; 2383 2384 debug_called(2); 2385 2386 cr->cr_flags |= CISS_REQ_SLEEP; 2387 if ((error = ciss_start(cr)) != 0) 2388 return(error); 2389 2390 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2391 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2392 } 2393 return(error); 2394 } 2395 2396 #if 0 2397 /************************************************************************ 2398 * Abort a request. Note that a potential exists here to race the 2399 * request being completed; the caller must deal with this. 2400 */ 2401 static int 2402 ciss_abort_request(struct ciss_request *ar) 2403 { 2404 struct ciss_request *cr; 2405 struct ciss_command *cc; 2406 struct ciss_message_cdb *cmc; 2407 int error; 2408 2409 debug_called(1); 2410 2411 /* get a request */ 2412 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2413 return(error); 2414 2415 /* build the abort command */ 2416 cc = cr->cr_cc; 2417 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2418 cc->header.address.physical.target = 0; 2419 cc->header.address.physical.bus = 0; 2420 cc->cdb.cdb_length = sizeof(*cmc); 2421 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2422 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2423 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2424 cc->cdb.timeout = 30; 2425 2426 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2427 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2428 cmc->type = CISS_MESSAGE_ABORT_TASK; 2429 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2430 2431 /* 2432 * Send the request and wait for a response. If we believe we 2433 * aborted the request OK, clear the flag that indicates it's 2434 * running. 2435 */ 2436 error = ciss_synch_request(cr, 35 * 1000); 2437 if (!error) 2438 error = ciss_report_request(cr, NULL, NULL); 2439 ciss_release_request(cr); 2440 2441 return(error); 2442 } 2443 #endif 2444 2445 2446 /************************************************************************ 2447 * Fetch and initialise a request 2448 */ 2449 static int 2450 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2451 { 2452 struct ciss_request *cr; 2453 2454 debug_called(2); 2455 2456 /* 2457 * Get a request and clean it up. 2458 */ 2459 if ((cr = ciss_dequeue_free(sc)) == NULL) 2460 return(ENOMEM); 2461 2462 cr->cr_data = NULL; 2463 cr->cr_flags = 0; 2464 cr->cr_complete = NULL; 2465 cr->cr_private = NULL; 2466 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2467 2468 ciss_preen_command(cr); 2469 *crp = cr; 2470 return(0); 2471 } 2472 2473 static void 2474 ciss_preen_command(struct ciss_request *cr) 2475 { 2476 struct ciss_command *cc; 2477 u_int32_t cmdphys; 2478 2479 /* 2480 * Clean up the command structure. 2481 * 2482 * Note that we set up the error_info structure here, since the 2483 * length can be overwritten by any command. 2484 */ 2485 cc = cr->cr_cc; 2486 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2487 cc->header.sg_total = 0; 2488 cc->header.host_tag = cr->cr_tag << 2; 2489 cc->header.host_tag_zeroes = 0; 2490 cmdphys = cr->cr_ccphys; 2491 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2492 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2493 } 2494 2495 /************************************************************************ 2496 * Release a request to the free list. 2497 */ 2498 static void 2499 ciss_release_request(struct ciss_request *cr) 2500 { 2501 struct ciss_softc *sc; 2502 2503 debug_called(2); 2504 2505 sc = cr->cr_sc; 2506 2507 /* release the request to the free queue */ 2508 ciss_requeue_free(cr); 2509 } 2510 2511 /************************************************************************ 2512 * Allocate a request that will be used to send a BMIC command. Do some 2513 * of the common setup here to avoid duplicating it everywhere else. 2514 */ 2515 static int 2516 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2517 int opcode, void **bufp, size_t bufsize) 2518 { 2519 struct ciss_request *cr; 2520 struct ciss_command *cc; 2521 struct ciss_bmic_cdb *cbc; 2522 void *buf; 2523 int error; 2524 int dataout; 2525 2526 debug_called(2); 2527 2528 cr = NULL; 2529 buf = NULL; 2530 2531 /* 2532 * Get a request. 2533 */ 2534 if ((error = ciss_get_request(sc, &cr)) != 0) 2535 goto out; 2536 2537 /* 2538 * Allocate data storage if requested, determine the data direction. 2539 */ 2540 dataout = 0; 2541 if ((bufsize > 0) && (bufp != NULL)) { 2542 if (*bufp == NULL) { 2543 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2544 error = ENOMEM; 2545 goto out; 2546 } 2547 } else { 2548 buf = *bufp; 2549 dataout = 1; /* we are given a buffer, so we are writing */ 2550 } 2551 } 2552 2553 /* 2554 * Build a CISS BMIC command to get the logical drive ID. 2555 */ 2556 cr->cr_data = buf; 2557 cr->cr_length = bufsize; 2558 if (!dataout) 2559 cr->cr_flags = CISS_REQ_DATAIN; 2560 2561 cc = cr->cr_cc; 2562 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2563 cc->header.address.physical.bus = 0; 2564 cc->header.address.physical.target = 0; 2565 cc->cdb.cdb_length = sizeof(*cbc); 2566 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2567 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2568 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2569 cc->cdb.timeout = 0; 2570 2571 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2572 bzero(cbc, sizeof(*cbc)); 2573 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2574 cbc->bmic_opcode = opcode; 2575 cbc->size = htons((u_int16_t)bufsize); 2576 2577 out: 2578 if (error) { 2579 if (cr != NULL) 2580 ciss_release_request(cr); 2581 } else { 2582 *crp = cr; 2583 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2584 *bufp = buf; 2585 } 2586 return(error); 2587 } 2588 2589 /************************************************************************ 2590 * Handle a command passed in from userspace. 2591 */ 2592 static int 2593 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2594 { 2595 struct ciss_request *cr; 2596 struct ciss_command *cc; 2597 struct ciss_error_info *ce; 2598 int error = 0; 2599 2600 debug_called(1); 2601 2602 cr = NULL; 2603 2604 /* 2605 * Get a request. 2606 */ 2607 while (ciss_get_request(sc, &cr) != 0) 2608 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2609 cc = cr->cr_cc; 2610 2611 /* 2612 * Allocate an in-kernel databuffer if required, copy in user data. 2613 */ 2614 mtx_unlock(&sc->ciss_mtx); 2615 cr->cr_length = ioc->buf_size; 2616 if (ioc->buf_size > 0) { 2617 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2618 error = ENOMEM; 2619 goto out_unlocked; 2620 } 2621 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2622 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2623 goto out_unlocked; 2624 } 2625 } 2626 2627 /* 2628 * Build the request based on the user command. 2629 */ 2630 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2631 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2632 2633 /* XXX anything else to populate here? */ 2634 mtx_lock(&sc->ciss_mtx); 2635 2636 /* 2637 * Run the command. 2638 */ 2639 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2640 debug(0, "request failed - %d", error); 2641 goto out; 2642 } 2643 2644 /* 2645 * Check to see if the command succeeded. 2646 */ 2647 ce = (struct ciss_error_info *)&(cc->sg[0]); 2648 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2649 bzero(ce, sizeof(*ce)); 2650 2651 /* 2652 * Copy the results back to the user. 2653 */ 2654 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2655 mtx_unlock(&sc->ciss_mtx); 2656 if ((ioc->buf_size > 0) && 2657 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2658 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2659 goto out_unlocked; 2660 } 2661 2662 /* done OK */ 2663 error = 0; 2664 2665 out_unlocked: 2666 mtx_lock(&sc->ciss_mtx); 2667 2668 out: 2669 if ((cr != NULL) && (cr->cr_data != NULL)) 2670 free(cr->cr_data, CISS_MALLOC_CLASS); 2671 if (cr != NULL) 2672 ciss_release_request(cr); 2673 return(error); 2674 } 2675 2676 /************************************************************************ 2677 * Map a request into bus-visible space, initialise the scatter/gather 2678 * list. 2679 */ 2680 static int 2681 ciss_map_request(struct ciss_request *cr) 2682 { 2683 struct ciss_softc *sc; 2684 int error = 0; 2685 2686 debug_called(2); 2687 2688 sc = cr->cr_sc; 2689 2690 /* check that mapping is necessary */ 2691 if (cr->cr_flags & CISS_REQ_MAPPED) 2692 return(0); 2693 2694 cr->cr_flags |= CISS_REQ_MAPPED; 2695 2696 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2697 BUS_DMASYNC_PREWRITE); 2698 2699 if (cr->cr_data != NULL) { 2700 if (cr->cr_flags & CISS_REQ_CCB) 2701 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2702 cr->cr_datamap, cr->cr_data, 2703 ciss_request_map_helper, cr, 0); 2704 else 2705 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2706 cr->cr_data, cr->cr_length, 2707 ciss_request_map_helper, cr, 0); 2708 if (error != 0) 2709 return (error); 2710 } else { 2711 /* 2712 * Post the command to the adapter. 2713 */ 2714 cr->cr_sg_tag = CISS_SG_NONE; 2715 cr->cr_flags |= CISS_REQ_BUSY; 2716 if (sc->ciss_perf) 2717 CISS_TL_PERF_POST_CMD(sc, cr); 2718 else 2719 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2720 } 2721 2722 return(0); 2723 } 2724 2725 static void 2726 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2727 { 2728 struct ciss_command *cc; 2729 struct ciss_request *cr; 2730 struct ciss_softc *sc; 2731 int i; 2732 2733 debug_called(2); 2734 2735 cr = (struct ciss_request *)arg; 2736 sc = cr->cr_sc; 2737 cc = cr->cr_cc; 2738 2739 for (i = 0; i < nseg; i++) { 2740 cc->sg[i].address = segs[i].ds_addr; 2741 cc->sg[i].length = segs[i].ds_len; 2742 cc->sg[i].extension = 0; 2743 } 2744 /* we leave the s/g table entirely within the command */ 2745 cc->header.sg_in_list = nseg; 2746 cc->header.sg_total = nseg; 2747 2748 if (cr->cr_flags & CISS_REQ_DATAIN) 2749 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2750 if (cr->cr_flags & CISS_REQ_DATAOUT) 2751 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2752 2753 if (nseg == 0) 2754 cr->cr_sg_tag = CISS_SG_NONE; 2755 else if (nseg == 1) 2756 cr->cr_sg_tag = CISS_SG_1; 2757 else if (nseg == 2) 2758 cr->cr_sg_tag = CISS_SG_2; 2759 else if (nseg <= 4) 2760 cr->cr_sg_tag = CISS_SG_4; 2761 else if (nseg <= 8) 2762 cr->cr_sg_tag = CISS_SG_8; 2763 else if (nseg <= 16) 2764 cr->cr_sg_tag = CISS_SG_16; 2765 else if (nseg <= 32) 2766 cr->cr_sg_tag = CISS_SG_32; 2767 else 2768 cr->cr_sg_tag = CISS_SG_MAX; 2769 2770 /* 2771 * Post the command to the adapter. 2772 */ 2773 cr->cr_flags |= CISS_REQ_BUSY; 2774 if (sc->ciss_perf) 2775 CISS_TL_PERF_POST_CMD(sc, cr); 2776 else 2777 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2778 } 2779 2780 /************************************************************************ 2781 * Unmap a request from bus-visible space. 2782 */ 2783 static void 2784 ciss_unmap_request(struct ciss_request *cr) 2785 { 2786 struct ciss_softc *sc; 2787 2788 debug_called(2); 2789 2790 sc = cr->cr_sc; 2791 2792 /* check that unmapping is necessary */ 2793 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2794 return; 2795 2796 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2797 BUS_DMASYNC_POSTWRITE); 2798 2799 if (cr->cr_data == NULL) 2800 goto out; 2801 2802 if (cr->cr_flags & CISS_REQ_DATAIN) 2803 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2804 if (cr->cr_flags & CISS_REQ_DATAOUT) 2805 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2806 2807 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2808 out: 2809 cr->cr_flags &= ~CISS_REQ_MAPPED; 2810 } 2811 2812 /************************************************************************ 2813 * Attach the driver to CAM. 2814 * 2815 * We put all the logical drives on a single SCSI bus. 2816 */ 2817 static int 2818 ciss_cam_init(struct ciss_softc *sc) 2819 { 2820 int i, maxbus; 2821 2822 debug_called(1); 2823 2824 /* 2825 * Allocate a devq. We can reuse this for the masked physical 2826 * devices if we decide to export these as well. 2827 */ 2828 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2829 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2830 return(ENOMEM); 2831 } 2832 2833 /* 2834 * Create a SIM. 2835 * 2836 * This naturally wastes a bit of memory. The alternative is to allocate 2837 * and register each bus as it is found, and then track them on a linked 2838 * list. Unfortunately, the driver has a few places where it needs to 2839 * look up the SIM based solely on bus number, and it's unclear whether 2840 * a list traversal would work for these situations. 2841 */ 2842 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2843 CISS_PHYSICAL_BASE); 2844 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2845 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2846 if (sc->ciss_cam_sim == NULL) { 2847 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2848 return(ENOMEM); 2849 } 2850 2851 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2852 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2853 "ciss", sc, 2854 device_get_unit(sc->ciss_dev), 2855 &sc->ciss_mtx, 2856 2, 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 /* 2864 * Register bus with this SIM. 2865 */ 2866 mtx_lock(&sc->ciss_mtx); 2867 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2868 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2869 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2870 mtx_unlock(&sc->ciss_mtx); 2871 return (ENXIO); 2872 } 2873 } 2874 mtx_unlock(&sc->ciss_mtx); 2875 } 2876 2877 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2878 CISS_PHYSICAL_BASE; i++) { 2879 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2880 "ciss", sc, 2881 device_get_unit(sc->ciss_dev), 2882 &sc->ciss_mtx, 1, 2883 sc->ciss_max_requests - 2, 2884 sc->ciss_cam_devq)) == NULL) { 2885 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2886 return (ENOMEM); 2887 } 2888 2889 mtx_lock(&sc->ciss_mtx); 2890 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2891 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2892 mtx_unlock(&sc->ciss_mtx); 2893 return (ENXIO); 2894 } 2895 mtx_unlock(&sc->ciss_mtx); 2896 } 2897 2898 return(0); 2899 } 2900 2901 /************************************************************************ 2902 * Initiate a rescan of the 'logical devices' SIM 2903 */ 2904 static void 2905 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2906 { 2907 union ccb *ccb; 2908 2909 debug_called(1); 2910 2911 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2912 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2913 return; 2914 } 2915 2916 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2917 cam_sim_path(sc->ciss_cam_sim[bus]), 2918 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2919 ciss_printf(sc, "rescan failed (can't create path)\n"); 2920 xpt_free_ccb(ccb); 2921 return; 2922 } 2923 xpt_rescan(ccb); 2924 /* scan is now in progress */ 2925 } 2926 2927 /************************************************************************ 2928 * Handle requests coming from CAM 2929 */ 2930 static void 2931 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2932 { 2933 struct ciss_softc *sc; 2934 struct ccb_scsiio *csio; 2935 int bus, target; 2936 int physical; 2937 2938 sc = cam_sim_softc(sim); 2939 bus = cam_sim_bus(sim); 2940 csio = (struct ccb_scsiio *)&ccb->csio; 2941 target = csio->ccb_h.target_id; 2942 physical = CISS_IS_PHYSICAL(bus); 2943 2944 switch (ccb->ccb_h.func_code) { 2945 2946 /* perform SCSI I/O */ 2947 case XPT_SCSI_IO: 2948 if (!ciss_cam_action_io(sim, csio)) 2949 return; 2950 break; 2951 2952 /* perform geometry calculations */ 2953 case XPT_CALC_GEOMETRY: 2954 { 2955 struct ccb_calc_geometry *ccg = &ccb->ccg; 2956 struct ciss_ldrive *ld; 2957 2958 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2959 2960 ld = NULL; 2961 if (!physical) 2962 ld = &sc->ciss_logical[bus][target]; 2963 2964 /* 2965 * Use the cached geometry settings unless the fault tolerance 2966 * is invalid. 2967 */ 2968 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2969 u_int32_t secs_per_cylinder; 2970 2971 ccg->heads = 255; 2972 ccg->secs_per_track = 32; 2973 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2974 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2975 } else { 2976 ccg->heads = ld->cl_geometry.heads; 2977 ccg->secs_per_track = ld->cl_geometry.sectors; 2978 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2979 } 2980 ccb->ccb_h.status = CAM_REQ_CMP; 2981 break; 2982 } 2983 2984 /* handle path attribute inquiry */ 2985 case XPT_PATH_INQ: 2986 { 2987 struct ccb_pathinq *cpi = &ccb->cpi; 2988 2989 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2990 2991 cpi->version_num = 1; 2992 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2993 cpi->target_sprt = 0; 2994 cpi->hba_misc = 0; 2995 cpi->max_target = sc->ciss_cfg->max_logical_supported; 2996 cpi->max_lun = 0; /* 'logical drive' channel only */ 2997 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 2998 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2999 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3000 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3001 cpi->unit_number = cam_sim_unit(sim); 3002 cpi->bus_id = cam_sim_bus(sim); 3003 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3004 cpi->transport = XPORT_SPI; 3005 cpi->transport_version = 2; 3006 cpi->protocol = PROTO_SCSI; 3007 cpi->protocol_version = SCSI_REV_2; 3008 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 3009 ccb->ccb_h.status = CAM_REQ_CMP; 3010 break; 3011 } 3012 3013 case XPT_GET_TRAN_SETTINGS: 3014 { 3015 struct ccb_trans_settings *cts = &ccb->cts; 3016 int bus, target; 3017 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3018 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3019 3020 bus = cam_sim_bus(sim); 3021 target = cts->ccb_h.target_id; 3022 3023 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3024 /* disconnect always OK */ 3025 cts->protocol = PROTO_SCSI; 3026 cts->protocol_version = SCSI_REV_2; 3027 cts->transport = XPORT_SPI; 3028 cts->transport_version = 2; 3029 3030 spi->valid = CTS_SPI_VALID_DISC; 3031 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3032 3033 scsi->valid = CTS_SCSI_VALID_TQ; 3034 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3035 3036 cts->ccb_h.status = CAM_REQ_CMP; 3037 break; 3038 } 3039 3040 default: /* we can't do this */ 3041 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3042 ccb->ccb_h.status = CAM_REQ_INVALID; 3043 break; 3044 } 3045 3046 xpt_done(ccb); 3047 } 3048 3049 /************************************************************************ 3050 * Handle a CAM SCSI I/O request. 3051 */ 3052 static int 3053 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3054 { 3055 struct ciss_softc *sc; 3056 int bus, target; 3057 struct ciss_request *cr; 3058 struct ciss_command *cc; 3059 int error; 3060 3061 sc = cam_sim_softc(sim); 3062 bus = cam_sim_bus(sim); 3063 target = csio->ccb_h.target_id; 3064 3065 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3066 3067 /* check that the CDB pointer is not to a physical address */ 3068 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3069 debug(3, " CDB pointer is to physical address"); 3070 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3071 } 3072 3073 /* abandon aborted ccbs or those that have failed validation */ 3074 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3075 debug(3, "abandoning CCB due to abort/validation failure"); 3076 return(EINVAL); 3077 } 3078 3079 /* handle emulation of some SCSI commands ourself */ 3080 if (ciss_cam_emulate(sc, csio)) 3081 return(0); 3082 3083 /* 3084 * Get a request to manage this command. If we can't, return the 3085 * ccb, freeze the queue and flag so that we unfreeze it when a 3086 * request completes. 3087 */ 3088 if ((error = ciss_get_request(sc, &cr)) != 0) { 3089 xpt_freeze_simq(sim, 1); 3090 sc->ciss_flags |= CISS_FLAG_BUSY; 3091 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3092 return(error); 3093 } 3094 3095 /* 3096 * Build the command. 3097 */ 3098 cc = cr->cr_cc; 3099 cr->cr_data = csio; 3100 cr->cr_length = csio->dxfer_len; 3101 cr->cr_complete = ciss_cam_complete; 3102 cr->cr_private = csio; 3103 3104 /* 3105 * Target the right logical volume. 3106 */ 3107 if (CISS_IS_PHYSICAL(bus)) 3108 cc->header.address = 3109 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3110 else 3111 cc->header.address = 3112 sc->ciss_logical[bus][target].cl_address; 3113 cc->cdb.cdb_length = csio->cdb_len; 3114 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3115 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3116 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3117 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3118 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3119 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3120 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3121 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3122 } else { 3123 cr->cr_data = NULL; 3124 cr->cr_flags = 0; 3125 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3126 } 3127 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3128 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3129 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3130 } else { 3131 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3132 } 3133 3134 /* 3135 * Submit the request to the adapter. 3136 * 3137 * Note that this may fail if we're unable to map the request (and 3138 * if we ever learn a transport layer other than simple, may fail 3139 * if the adapter rejects the command). 3140 */ 3141 if ((error = ciss_start(cr)) != 0) { 3142 xpt_freeze_simq(sim, 1); 3143 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3144 if (error == EINPROGRESS) { 3145 error = 0; 3146 } else { 3147 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3148 ciss_release_request(cr); 3149 } 3150 return(error); 3151 } 3152 3153 return(0); 3154 } 3155 3156 /************************************************************************ 3157 * Emulate SCSI commands the adapter doesn't handle as we might like. 3158 */ 3159 static int 3160 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3161 { 3162 int bus, target; 3163 u_int8_t opcode; 3164 3165 target = csio->ccb_h.target_id; 3166 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3167 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3168 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3169 3170 if (CISS_IS_PHYSICAL(bus)) { 3171 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3172 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3173 xpt_done((union ccb *)csio); 3174 return(1); 3175 } else 3176 return(0); 3177 } 3178 3179 /* 3180 * Handle requests for volumes that don't exist or are not online. 3181 * A selection timeout is slightly better than an illegal request. 3182 * Other errors might be better. 3183 */ 3184 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3185 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3186 xpt_done((union ccb *)csio); 3187 return(1); 3188 } 3189 3190 /* if we have to fake Synchronise Cache */ 3191 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3192 /* 3193 * If this is a Synchronise Cache command, typically issued when 3194 * a device is closed, flush the adapter and complete now. 3195 */ 3196 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3197 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3198 ciss_flush_adapter(sc); 3199 csio->ccb_h.status |= CAM_REQ_CMP; 3200 xpt_done((union ccb *)csio); 3201 return(1); 3202 } 3203 } 3204 3205 return(0); 3206 } 3207 3208 /************************************************************************ 3209 * Check for possibly-completed commands. 3210 */ 3211 static void 3212 ciss_cam_poll(struct cam_sim *sim) 3213 { 3214 cr_qhead_t qh; 3215 struct ciss_softc *sc = cam_sim_softc(sim); 3216 3217 debug_called(2); 3218 3219 STAILQ_INIT(&qh); 3220 if (sc->ciss_perf) 3221 ciss_perf_done(sc, &qh); 3222 else 3223 ciss_done(sc, &qh); 3224 ciss_complete(sc, &qh); 3225 } 3226 3227 /************************************************************************ 3228 * Handle completion of a command - pass results back through the CCB 3229 */ 3230 static void 3231 ciss_cam_complete(struct ciss_request *cr) 3232 { 3233 struct ciss_softc *sc; 3234 struct ciss_command *cc; 3235 struct ciss_error_info *ce; 3236 struct ccb_scsiio *csio; 3237 int scsi_status; 3238 int command_status; 3239 3240 debug_called(2); 3241 3242 sc = cr->cr_sc; 3243 cc = cr->cr_cc; 3244 ce = (struct ciss_error_info *)&(cc->sg[0]); 3245 csio = (struct ccb_scsiio *)cr->cr_private; 3246 3247 /* 3248 * Extract status values from request. 3249 */ 3250 ciss_report_request(cr, &command_status, &scsi_status); 3251 csio->scsi_status = scsi_status; 3252 3253 /* 3254 * Handle specific SCSI status values. 3255 */ 3256 switch(scsi_status) { 3257 /* no status due to adapter error */ 3258 case -1: 3259 debug(0, "adapter error"); 3260 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3261 break; 3262 3263 /* no status due to command completed OK */ 3264 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3265 debug(2, "SCSI_STATUS_OK"); 3266 csio->ccb_h.status |= CAM_REQ_CMP; 3267 break; 3268 3269 /* check condition, sense data included */ 3270 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3271 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3272 ce->sense_length, ce->residual_count); 3273 bzero(&csio->sense_data, SSD_FULL_SIZE); 3274 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3275 if (csio->sense_len > ce->sense_length) 3276 csio->sense_resid = csio->sense_len - ce->sense_length; 3277 else 3278 csio->sense_resid = 0; 3279 csio->resid = ce->residual_count; 3280 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3281 #ifdef CISS_DEBUG 3282 { 3283 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3284 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3285 csio->sense_resid, /*show_errors*/ 1)); 3286 } 3287 #endif 3288 break; 3289 3290 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3291 debug(0, "SCSI_STATUS_BUSY"); 3292 csio->ccb_h.status |= CAM_SCSI_BUSY; 3293 break; 3294 3295 default: 3296 debug(0, "unknown status 0x%x", csio->scsi_status); 3297 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3298 break; 3299 } 3300 3301 /* handle post-command fixup */ 3302 ciss_cam_complete_fixup(sc, csio); 3303 3304 ciss_release_request(cr); 3305 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3306 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3307 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3308 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3309 else 3310 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3311 } 3312 xpt_done((union ccb *)csio); 3313 } 3314 3315 /******************************************************************************** 3316 * Fix up the result of some commands here. 3317 */ 3318 static void 3319 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3320 { 3321 struct scsi_inquiry_data *inq; 3322 struct ciss_ldrive *cl; 3323 uint8_t *cdb; 3324 int bus, target; 3325 3326 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3327 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3328 if (cdb[0] == INQUIRY && 3329 (cdb[1] & SI_EVPD) == 0 && 3330 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3331 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3332 3333 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3334 target = csio->ccb_h.target_id; 3335 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3336 3337 /* 3338 * Don't let hard drives be seen by the DA driver. They will still be 3339 * attached by the PASS driver. 3340 */ 3341 if (CISS_IS_PHYSICAL(bus)) { 3342 if (SID_TYPE(inq) == T_DIRECT) 3343 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3344 return; 3345 } 3346 3347 cl = &sc->ciss_logical[bus][target]; 3348 3349 padstr(inq->vendor, "COMPAQ", 3350 SID_VENDOR_SIZE); 3351 padstr(inq->product, 3352 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3353 SID_PRODUCT_SIZE); 3354 padstr(inq->revision, 3355 ciss_name_ldrive_status(cl->cl_lstatus->status), 3356 SID_REVISION_SIZE); 3357 } 3358 } 3359 3360 3361 /******************************************************************************** 3362 * Find a peripheral attached at (target) 3363 */ 3364 static struct cam_periph * 3365 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3366 { 3367 struct cam_periph *periph; 3368 struct cam_path *path; 3369 int status; 3370 3371 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3372 target, 0); 3373 if (status == CAM_REQ_CMP) { 3374 periph = cam_periph_find(path, NULL); 3375 xpt_free_path(path); 3376 } else { 3377 periph = NULL; 3378 } 3379 return(periph); 3380 } 3381 3382 /******************************************************************************** 3383 * Name the device at (target) 3384 * 3385 * XXX is this strictly correct? 3386 */ 3387 static int 3388 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3389 { 3390 struct cam_periph *periph; 3391 3392 if (CISS_IS_PHYSICAL(bus)) 3393 return (0); 3394 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3395 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3396 periph->periph_name, periph->unit_number); 3397 return(0); 3398 } 3399 sc->ciss_logical[bus][target].cl_name[0] = 0; 3400 return(ENOENT); 3401 } 3402 3403 /************************************************************************ 3404 * Periodic status monitoring. 3405 */ 3406 static void 3407 ciss_periodic(void *arg) 3408 { 3409 struct ciss_softc *sc; 3410 struct ciss_request *cr = NULL; 3411 struct ciss_command *cc = NULL; 3412 int error = 0; 3413 3414 debug_called(1); 3415 3416 sc = (struct ciss_softc *)arg; 3417 3418 /* 3419 * Check the adapter heartbeat. 3420 */ 3421 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3422 sc->ciss_heart_attack++; 3423 debug(0, "adapter heart attack in progress 0x%x/%d", 3424 sc->ciss_heartbeat, sc->ciss_heart_attack); 3425 if (sc->ciss_heart_attack == 3) { 3426 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3427 ciss_disable_adapter(sc); 3428 return; 3429 } 3430 } else { 3431 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3432 sc->ciss_heart_attack = 0; 3433 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3434 } 3435 3436 /* 3437 * Send the NOP message and wait for a response. 3438 */ 3439 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3440 cc = cr->cr_cc; 3441 cr->cr_complete = ciss_nop_complete; 3442 cc->cdb.cdb_length = 1; 3443 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3444 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3445 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3446 cc->cdb.timeout = 0; 3447 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3448 3449 if ((error = ciss_start(cr)) != 0) { 3450 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3451 } 3452 } 3453 3454 /* 3455 * If the notify event request has died for some reason, or has 3456 * not started yet, restart it. 3457 */ 3458 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3459 debug(0, "(re)starting Event Notify chain"); 3460 ciss_notify_event(sc); 3461 } 3462 3463 /* 3464 * Reschedule. 3465 */ 3466 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3467 } 3468 3469 static void 3470 ciss_nop_complete(struct ciss_request *cr) 3471 { 3472 struct ciss_softc *sc; 3473 static int first_time = 1; 3474 3475 sc = cr->cr_sc; 3476 if (ciss_report_request(cr, NULL, NULL) != 0) { 3477 if (first_time == 1) { 3478 first_time = 0; 3479 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3480 } 3481 } 3482 3483 ciss_release_request(cr); 3484 } 3485 3486 /************************************************************************ 3487 * Disable the adapter. 3488 * 3489 * The all requests in completed queue is failed with hardware error. 3490 * This will cause failover in a multipath configuration. 3491 */ 3492 static void 3493 ciss_disable_adapter(struct ciss_softc *sc) 3494 { 3495 cr_qhead_t qh; 3496 struct ciss_request *cr; 3497 struct ciss_command *cc; 3498 struct ciss_error_info *ce; 3499 int i; 3500 3501 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3502 pci_disable_busmaster(sc->ciss_dev); 3503 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3504 3505 for (i = 1; i < sc->ciss_max_requests; i++) { 3506 cr = &sc->ciss_request[i]; 3507 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3508 continue; 3509 3510 cc = cr->cr_cc; 3511 ce = (struct ciss_error_info *)&(cc->sg[0]); 3512 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3513 ciss_enqueue_complete(cr, &qh); 3514 } 3515 3516 for (;;) { 3517 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3518 break; 3519 3520 /* 3521 * If the request has a callback, invoke it. 3522 */ 3523 if (cr->cr_complete != NULL) { 3524 cr->cr_complete(cr); 3525 continue; 3526 } 3527 3528 /* 3529 * If someone is sleeping on this request, wake them up. 3530 */ 3531 if (cr->cr_flags & CISS_REQ_SLEEP) { 3532 cr->cr_flags &= ~CISS_REQ_SLEEP; 3533 wakeup(cr); 3534 continue; 3535 } 3536 } 3537 } 3538 3539 /************************************************************************ 3540 * Request a notification response from the adapter. 3541 * 3542 * If (cr) is NULL, this is the first request of the adapter, so 3543 * reset the adapter's message pointer and start with the oldest 3544 * message available. 3545 */ 3546 static void 3547 ciss_notify_event(struct ciss_softc *sc) 3548 { 3549 struct ciss_request *cr; 3550 struct ciss_command *cc; 3551 struct ciss_notify_cdb *cnc; 3552 int error; 3553 3554 debug_called(1); 3555 3556 cr = sc->ciss_periodic_notify; 3557 3558 /* get a request if we don't already have one */ 3559 if (cr == NULL) { 3560 if ((error = ciss_get_request(sc, &cr)) != 0) { 3561 debug(0, "can't get notify event request"); 3562 goto out; 3563 } 3564 sc->ciss_periodic_notify = cr; 3565 cr->cr_complete = ciss_notify_complete; 3566 debug(1, "acquired request %d", cr->cr_tag); 3567 } 3568 3569 /* 3570 * Get a databuffer if we don't already have one, note that the 3571 * adapter command wants a larger buffer than the actual 3572 * structure. 3573 */ 3574 if (cr->cr_data == NULL) { 3575 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3576 debug(0, "can't get notify event request buffer"); 3577 error = ENOMEM; 3578 goto out; 3579 } 3580 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3581 } 3582 3583 /* re-setup the request's command (since we never release it) XXX overkill*/ 3584 ciss_preen_command(cr); 3585 3586 /* (re)build the notify event command */ 3587 cc = cr->cr_cc; 3588 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3589 cc->header.address.physical.bus = 0; 3590 cc->header.address.physical.target = 0; 3591 3592 cc->cdb.cdb_length = sizeof(*cnc); 3593 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3594 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3595 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3596 cc->cdb.timeout = 0; /* no timeout, we hope */ 3597 3598 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3599 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3600 cnc->opcode = CISS_OPCODE_READ; 3601 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3602 cnc->timeout = 0; /* no timeout, we hope */ 3603 cnc->synchronous = 0; 3604 cnc->ordered = 0; 3605 cnc->seek_to_oldest = 0; 3606 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3607 cnc->new_only = 1; 3608 else 3609 cnc->new_only = 0; 3610 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3611 3612 /* submit the request */ 3613 error = ciss_start(cr); 3614 3615 out: 3616 if (error) { 3617 if (cr != NULL) { 3618 if (cr->cr_data != NULL) 3619 free(cr->cr_data, CISS_MALLOC_CLASS); 3620 ciss_release_request(cr); 3621 } 3622 sc->ciss_periodic_notify = NULL; 3623 debug(0, "can't submit notify event request"); 3624 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3625 } else { 3626 debug(1, "notify event submitted"); 3627 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3628 } 3629 } 3630 3631 static void 3632 ciss_notify_complete(struct ciss_request *cr) 3633 { 3634 struct ciss_command *cc; 3635 struct ciss_notify *cn; 3636 struct ciss_softc *sc; 3637 int scsi_status; 3638 int command_status; 3639 debug_called(1); 3640 3641 cc = cr->cr_cc; 3642 cn = (struct ciss_notify *)cr->cr_data; 3643 sc = cr->cr_sc; 3644 3645 /* 3646 * Report request results, decode status. 3647 */ 3648 ciss_report_request(cr, &command_status, &scsi_status); 3649 3650 /* 3651 * Abort the chain on a fatal error. 3652 * 3653 * XXX which of these are actually errors? 3654 */ 3655 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3656 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3657 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3658 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3659 ciss_name_command_status(command_status)); 3660 ciss_release_request(cr); 3661 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3662 return; 3663 } 3664 3665 /* 3666 * If the adapter gave us a text message, print it. 3667 */ 3668 if (cn->message[0] != 0) 3669 ciss_printf(sc, "*** %.80s\n", cn->message); 3670 3671 debug(0, "notify event class %d subclass %d detail %d", 3672 cn->class, cn->subclass, cn->detail); 3673 3674 /* 3675 * If the response indicates that the notifier has been aborted, 3676 * release the notifier command. 3677 */ 3678 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3679 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3680 (cn->detail == 1)) { 3681 debug(0, "notifier exiting"); 3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3683 ciss_release_request(cr); 3684 sc->ciss_periodic_notify = NULL; 3685 wakeup(&sc->ciss_periodic_notify); 3686 } else { 3687 /* Handle notify events in a kernel thread */ 3688 ciss_enqueue_notify(cr); 3689 sc->ciss_periodic_notify = NULL; 3690 wakeup(&sc->ciss_periodic_notify); 3691 wakeup(&sc->ciss_notify); 3692 } 3693 /* 3694 * Send a new notify event command, if we're not aborting. 3695 */ 3696 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3697 ciss_notify_event(sc); 3698 } 3699 } 3700 3701 /************************************************************************ 3702 * Abort the Notify Event chain. 3703 * 3704 * Note that we can't just abort the command in progress; we have to 3705 * explicitly issue an Abort Notify Event command in order for the 3706 * adapter to clean up correctly. 3707 * 3708 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3709 * the chain will not restart itself. 3710 */ 3711 static int 3712 ciss_notify_abort(struct ciss_softc *sc) 3713 { 3714 struct ciss_request *cr; 3715 struct ciss_command *cc; 3716 struct ciss_notify_cdb *cnc; 3717 int error, command_status, scsi_status; 3718 3719 debug_called(1); 3720 3721 cr = NULL; 3722 error = 0; 3723 3724 /* verify that there's an outstanding command */ 3725 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3726 goto out; 3727 3728 /* get a command to issue the abort with */ 3729 if ((error = ciss_get_request(sc, &cr))) 3730 goto out; 3731 3732 /* get a buffer for the result */ 3733 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3734 debug(0, "can't get notify event request buffer"); 3735 error = ENOMEM; 3736 goto out; 3737 } 3738 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3739 3740 /* build the CDB */ 3741 cc = cr->cr_cc; 3742 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3743 cc->header.address.physical.bus = 0; 3744 cc->header.address.physical.target = 0; 3745 cc->cdb.cdb_length = sizeof(*cnc); 3746 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3747 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3748 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3749 cc->cdb.timeout = 0; /* no timeout, we hope */ 3750 3751 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3752 bzero(cnc, sizeof(*cnc)); 3753 cnc->opcode = CISS_OPCODE_WRITE; 3754 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3755 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3756 3757 ciss_print_request(cr); 3758 3759 /* 3760 * Submit the request and wait for it to complete. 3761 */ 3762 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3763 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3764 goto out; 3765 } 3766 3767 /* 3768 * Check response. 3769 */ 3770 ciss_report_request(cr, &command_status, &scsi_status); 3771 switch(command_status) { 3772 case CISS_CMD_STATUS_SUCCESS: 3773 break; 3774 case CISS_CMD_STATUS_INVALID_COMMAND: 3775 /* 3776 * Some older adapters don't support the CISS version of this 3777 * command. Fall back to using the BMIC version. 3778 */ 3779 error = ciss_notify_abort_bmic(sc); 3780 if (error != 0) 3781 goto out; 3782 break; 3783 3784 case CISS_CMD_STATUS_TARGET_STATUS: 3785 /* 3786 * This can happen if the adapter thinks there wasn't an outstanding 3787 * Notify Event command but we did. We clean up here. 3788 */ 3789 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3790 if (sc->ciss_periodic_notify != NULL) 3791 ciss_release_request(sc->ciss_periodic_notify); 3792 error = 0; 3793 goto out; 3794 } 3795 /* FALLTHROUGH */ 3796 3797 default: 3798 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3799 ciss_name_command_status(command_status)); 3800 error = EIO; 3801 goto out; 3802 } 3803 3804 /* 3805 * Sleep waiting for the notifier command to complete. Note 3806 * that if it doesn't, we may end up in a bad situation, since 3807 * the adapter may deliver it later. Also note that the adapter 3808 * requires the Notify Event command to be cancelled in order to 3809 * maintain internal bookkeeping. 3810 */ 3811 while (sc->ciss_periodic_notify != NULL) { 3812 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3813 if (error == EWOULDBLOCK) { 3814 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3815 break; 3816 } 3817 } 3818 3819 out: 3820 /* release the cancel request */ 3821 if (cr != NULL) { 3822 if (cr->cr_data != NULL) 3823 free(cr->cr_data, CISS_MALLOC_CLASS); 3824 ciss_release_request(cr); 3825 } 3826 if (error == 0) 3827 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3828 return(error); 3829 } 3830 3831 /************************************************************************ 3832 * Abort the Notify Event chain using a BMIC command. 3833 */ 3834 static int 3835 ciss_notify_abort_bmic(struct ciss_softc *sc) 3836 { 3837 struct ciss_request *cr; 3838 int error, command_status; 3839 3840 debug_called(1); 3841 3842 cr = NULL; 3843 error = 0; 3844 3845 /* verify that there's an outstanding command */ 3846 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3847 goto out; 3848 3849 /* 3850 * Build a BMIC command to cancel the Notify on Event command. 3851 * 3852 * Note that we are sending a CISS opcode here. Odd. 3853 */ 3854 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3855 NULL, 0)) != 0) 3856 goto out; 3857 3858 /* 3859 * Submit the request and wait for it to complete. 3860 */ 3861 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3862 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3863 goto out; 3864 } 3865 3866 /* 3867 * Check response. 3868 */ 3869 ciss_report_request(cr, &command_status, NULL); 3870 switch(command_status) { 3871 case CISS_CMD_STATUS_SUCCESS: 3872 break; 3873 default: 3874 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3875 ciss_name_command_status(command_status)); 3876 error = EIO; 3877 goto out; 3878 } 3879 3880 out: 3881 if (cr != NULL) 3882 ciss_release_request(cr); 3883 return(error); 3884 } 3885 3886 /************************************************************************ 3887 * Handle rescanning all the logical volumes when a notify event 3888 * causes the drives to come online or offline. 3889 */ 3890 static void 3891 ciss_notify_rescan_logical(struct ciss_softc *sc) 3892 { 3893 struct ciss_lun_report *cll; 3894 struct ciss_ldrive *ld; 3895 int i, j, ndrives; 3896 3897 /* 3898 * We must rescan all logical volumes to get the right logical 3899 * drive address. 3900 */ 3901 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3902 sc->ciss_cfg->max_logical_supported); 3903 if (cll == NULL) 3904 return; 3905 3906 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3907 3908 /* 3909 * Delete any of the drives which were destroyed by the 3910 * firmware. 3911 */ 3912 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3913 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3914 ld = &sc->ciss_logical[i][j]; 3915 3916 if (ld->cl_update == 0) 3917 continue; 3918 3919 if (ld->cl_status != CISS_LD_ONLINE) { 3920 ciss_cam_rescan_target(sc, i, j); 3921 ld->cl_update = 0; 3922 if (ld->cl_ldrive) 3923 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3924 if (ld->cl_lstatus) 3925 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3926 3927 ld->cl_ldrive = NULL; 3928 ld->cl_lstatus = NULL; 3929 } 3930 } 3931 } 3932 3933 /* 3934 * Scan for new drives. 3935 */ 3936 for (i = 0; i < ndrives; i++) { 3937 int bus, target; 3938 3939 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3940 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3941 ld = &sc->ciss_logical[bus][target]; 3942 3943 if (ld->cl_update == 0) 3944 continue; 3945 3946 ld->cl_update = 0; 3947 ld->cl_address = cll->lun[i]; 3948 ld->cl_controller = &sc->ciss_controllers[bus]; 3949 if (ciss_identify_logical(sc, ld) == 0) { 3950 ciss_cam_rescan_target(sc, bus, target); 3951 } 3952 } 3953 free(cll, CISS_MALLOC_CLASS); 3954 } 3955 3956 /************************************************************************ 3957 * Handle a notify event relating to the status of a logical drive. 3958 * 3959 * XXX need to be able to defer some of these to properly handle 3960 * calling the "ID Physical drive" command, unless the 'extended' 3961 * drive IDs are always in BIG_MAP format. 3962 */ 3963 static void 3964 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3965 { 3966 struct ciss_ldrive *ld; 3967 int bus, target; 3968 int rescan_ld; 3969 3970 debug_called(2); 3971 3972 bus = cn->device.physical.bus; 3973 target = cn->data.logical_status.logical_drive; 3974 ld = &sc->ciss_logical[bus][target]; 3975 3976 switch (cn->subclass) { 3977 case CISS_NOTIFY_LOGICAL_STATUS: 3978 switch (cn->detail) { 3979 case 0: 3980 ciss_name_device(sc, bus, target); 3981 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3982 cn->data.logical_status.logical_drive, ld->cl_name, 3983 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3984 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3985 cn->data.logical_status.spare_state, 3986 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3987 3988 /* 3989 * Update our idea of the drive's status. 3990 */ 3991 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3992 if (ld->cl_lstatus != NULL) 3993 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3994 3995 /* 3996 * Have CAM rescan the drive if its status has changed. 3997 */ 3998 rescan_ld = (cn->data.logical_status.previous_state != 3999 cn->data.logical_status.new_state) ? 1 : 0; 4000 if (rescan_ld) { 4001 ld->cl_update = 1; 4002 ciss_notify_rescan_logical(sc); 4003 } 4004 4005 break; 4006 4007 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4008 ciss_name_device(sc, bus, target); 4009 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4010 cn->data.logical_status.logical_drive, ld->cl_name); 4011 ciss_accept_media(sc, ld); 4012 4013 ld->cl_update = 1; 4014 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4015 ciss_notify_rescan_logical(sc); 4016 break; 4017 4018 case 2: 4019 case 3: 4020 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4021 cn->data.rebuild_aborted.logical_drive, 4022 ld->cl_name, 4023 (cn->detail == 2) ? "read" : "write"); 4024 break; 4025 } 4026 break; 4027 4028 case CISS_NOTIFY_LOGICAL_ERROR: 4029 if (cn->detail == 0) { 4030 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4031 cn->data.io_error.logical_drive, 4032 ld->cl_name, 4033 cn->data.io_error.failure_bus, 4034 cn->data.io_error.failure_drive); 4035 /* XXX should we take the drive down at this point, or will we be told? */ 4036 } 4037 break; 4038 4039 case CISS_NOTIFY_LOGICAL_SURFACE: 4040 if (cn->detail == 0) 4041 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4042 cn->data.consistency_completed.logical_drive, 4043 ld->cl_name); 4044 break; 4045 } 4046 } 4047 4048 /************************************************************************ 4049 * Handle a notify event relating to the status of a physical drive. 4050 */ 4051 static void 4052 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4053 { 4054 } 4055 4056 /************************************************************************ 4057 * Handle a notify event relating to the status of a physical drive. 4058 */ 4059 static void 4060 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4061 { 4062 struct ciss_lun_report *cll = NULL; 4063 int bus, target; 4064 4065 switch (cn->subclass) { 4066 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4067 case CISS_NOTIFY_HOTPLUG_NONDISK: 4068 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4069 target = 4070 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4071 4072 if (cn->detail == 0) { 4073 /* 4074 * Mark the device offline so that it'll start producing selection 4075 * timeouts to the upper layer. 4076 */ 4077 if ((bus >= 0) && (target >= 0)) 4078 sc->ciss_physical[bus][target].cp_online = 0; 4079 } else { 4080 /* 4081 * Rescan the physical lun list for new items 4082 */ 4083 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4084 sc->ciss_cfg->max_physical_supported); 4085 if (cll == NULL) { 4086 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4087 break; 4088 } 4089 ciss_filter_physical(sc, cll); 4090 } 4091 break; 4092 4093 default: 4094 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4095 return; 4096 } 4097 4098 if (cll != NULL) 4099 free(cll, CISS_MALLOC_CLASS); 4100 } 4101 4102 /************************************************************************ 4103 * Handle deferred processing of notify events. Notify events may need 4104 * sleep which is unsafe during an interrupt. 4105 */ 4106 static void 4107 ciss_notify_thread(void *arg) 4108 { 4109 struct ciss_softc *sc; 4110 struct ciss_request *cr; 4111 struct ciss_notify *cn; 4112 4113 sc = (struct ciss_softc *)arg; 4114 #if __FreeBSD_version >= 500000 4115 mtx_lock(&sc->ciss_mtx); 4116 #endif 4117 4118 for (;;) { 4119 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4120 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4121 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4122 } 4123 4124 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4125 break; 4126 4127 cr = ciss_dequeue_notify(sc); 4128 4129 if (cr == NULL) 4130 panic("cr null"); 4131 cn = (struct ciss_notify *)cr->cr_data; 4132 4133 switch (cn->class) { 4134 case CISS_NOTIFY_HOTPLUG: 4135 ciss_notify_hotplug(sc, cn); 4136 break; 4137 case CISS_NOTIFY_LOGICAL: 4138 ciss_notify_logical(sc, cn); 4139 break; 4140 case CISS_NOTIFY_PHYSICAL: 4141 ciss_notify_physical(sc, cn); 4142 break; 4143 } 4144 4145 ciss_release_request(cr); 4146 4147 } 4148 sc->ciss_notify_thread = NULL; 4149 wakeup(&sc->ciss_notify_thread); 4150 4151 #if __FreeBSD_version >= 500000 4152 mtx_unlock(&sc->ciss_mtx); 4153 #endif 4154 kproc_exit(0); 4155 } 4156 4157 /************************************************************************ 4158 * Start the notification kernel thread. 4159 */ 4160 static void 4161 ciss_spawn_notify_thread(struct ciss_softc *sc) 4162 { 4163 4164 #if __FreeBSD_version > 500005 4165 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4166 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4167 device_get_unit(sc->ciss_dev))) 4168 #else 4169 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4170 &sc->ciss_notify_thread, "ciss_notify%d", 4171 device_get_unit(sc->ciss_dev))) 4172 #endif 4173 panic("Could not create notify thread\n"); 4174 } 4175 4176 /************************************************************************ 4177 * Kill the notification kernel thread. 4178 */ 4179 static void 4180 ciss_kill_notify_thread(struct ciss_softc *sc) 4181 { 4182 4183 if (sc->ciss_notify_thread == NULL) 4184 return; 4185 4186 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4187 wakeup(&sc->ciss_notify); 4188 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4189 } 4190 4191 /************************************************************************ 4192 * Print a request. 4193 */ 4194 static void 4195 ciss_print_request(struct ciss_request *cr) 4196 { 4197 struct ciss_softc *sc; 4198 struct ciss_command *cc; 4199 int i; 4200 4201 sc = cr->cr_sc; 4202 cc = cr->cr_cc; 4203 4204 ciss_printf(sc, "REQUEST @ %p\n", cr); 4205 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4206 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4207 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4208 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4209 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4210 switch(cc->header.address.mode.mode) { 4211 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4212 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4213 ciss_printf(sc, " physical bus %d target %d\n", 4214 cc->header.address.physical.bus, cc->header.address.physical.target); 4215 break; 4216 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4217 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4218 break; 4219 } 4220 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4221 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4222 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4223 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4224 cc->cdb.cdb_length, 4225 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4226 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4227 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4228 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4229 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4230 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4231 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4232 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4233 4234 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4235 /* XXX print error info */ 4236 } else { 4237 /* since we don't use chained s/g, don't support it here */ 4238 for (i = 0; i < cc->header.sg_in_list; i++) { 4239 if ((i % 4) == 0) 4240 ciss_printf(sc, " "); 4241 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4242 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4243 printf("\n"); 4244 } 4245 } 4246 } 4247 4248 /************************************************************************ 4249 * Print information about the status of a logical drive. 4250 */ 4251 static void 4252 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4253 { 4254 int bus, target, i; 4255 4256 if (ld->cl_lstatus == NULL) { 4257 printf("does not exist\n"); 4258 return; 4259 } 4260 4261 /* print drive status */ 4262 switch(ld->cl_lstatus->status) { 4263 case CISS_LSTATUS_OK: 4264 printf("online\n"); 4265 break; 4266 case CISS_LSTATUS_INTERIM_RECOVERY: 4267 printf("in interim recovery mode\n"); 4268 break; 4269 case CISS_LSTATUS_READY_RECOVERY: 4270 printf("ready to begin recovery\n"); 4271 break; 4272 case CISS_LSTATUS_RECOVERING: 4273 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4274 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4275 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4276 bus, target, ld->cl_lstatus->blocks_to_recover); 4277 break; 4278 case CISS_LSTATUS_EXPANDING: 4279 printf("being expanded, %u blocks remaining\n", 4280 ld->cl_lstatus->blocks_to_recover); 4281 break; 4282 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4283 printf("queued for expansion\n"); 4284 break; 4285 case CISS_LSTATUS_FAILED: 4286 printf("queued for expansion\n"); 4287 break; 4288 case CISS_LSTATUS_WRONG_PDRIVE: 4289 printf("wrong physical drive inserted\n"); 4290 break; 4291 case CISS_LSTATUS_MISSING_PDRIVE: 4292 printf("missing a needed physical drive\n"); 4293 break; 4294 case CISS_LSTATUS_BECOMING_READY: 4295 printf("becoming ready\n"); 4296 break; 4297 } 4298 4299 /* print failed physical drives */ 4300 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4301 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4302 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4303 if (bus == -1) 4304 continue; 4305 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4306 ld->cl_lstatus->drive_failure_map[i]); 4307 } 4308 } 4309 4310 #ifdef CISS_DEBUG 4311 #include "opt_ddb.h" 4312 #ifdef DDB 4313 #include <ddb/ddb.h> 4314 /************************************************************************ 4315 * Print information about the controller/driver. 4316 */ 4317 static void 4318 ciss_print_adapter(struct ciss_softc *sc) 4319 { 4320 int i, j; 4321 4322 ciss_printf(sc, "ADAPTER:\n"); 4323 for (i = 0; i < CISSQ_COUNT; i++) { 4324 ciss_printf(sc, "%s %d/%d\n", 4325 i == 0 ? "free" : 4326 i == 1 ? "busy" : "complete", 4327 sc->ciss_qstat[i].q_length, 4328 sc->ciss_qstat[i].q_max); 4329 } 4330 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4331 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4332 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4333 4334 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4335 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4336 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4337 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4338 } 4339 } 4340 4341 /* XXX Should physical drives be printed out here? */ 4342 4343 for (i = 1; i < sc->ciss_max_requests; i++) 4344 ciss_print_request(sc->ciss_request + i); 4345 } 4346 4347 /* DDB hook */ 4348 DB_COMMAND(ciss_prt, db_ciss_prt) 4349 { 4350 struct ciss_softc *sc; 4351 4352 sc = devclass_get_softc(devclass_find("ciss"), 0); 4353 if (sc == NULL) { 4354 printf("no ciss controllers\n"); 4355 } else { 4356 ciss_print_adapter(sc); 4357 } 4358 } 4359 #endif 4360 #endif 4361 4362 /************************************************************************ 4363 * Return a name for a logical drive status value. 4364 */ 4365 static const char * 4366 ciss_name_ldrive_status(int status) 4367 { 4368 switch (status) { 4369 case CISS_LSTATUS_OK: 4370 return("OK"); 4371 case CISS_LSTATUS_FAILED: 4372 return("failed"); 4373 case CISS_LSTATUS_NOT_CONFIGURED: 4374 return("not configured"); 4375 case CISS_LSTATUS_INTERIM_RECOVERY: 4376 return("interim recovery"); 4377 case CISS_LSTATUS_READY_RECOVERY: 4378 return("ready for recovery"); 4379 case CISS_LSTATUS_RECOVERING: 4380 return("recovering"); 4381 case CISS_LSTATUS_WRONG_PDRIVE: 4382 return("wrong physical drive inserted"); 4383 case CISS_LSTATUS_MISSING_PDRIVE: 4384 return("missing physical drive"); 4385 case CISS_LSTATUS_EXPANDING: 4386 return("expanding"); 4387 case CISS_LSTATUS_BECOMING_READY: 4388 return("becoming ready"); 4389 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4390 return("queued for expansion"); 4391 } 4392 return("unknown status"); 4393 } 4394 4395 /************************************************************************ 4396 * Return an online/offline/nonexistent value for a logical drive 4397 * status value. 4398 */ 4399 static int 4400 ciss_decode_ldrive_status(int status) 4401 { 4402 switch(status) { 4403 case CISS_LSTATUS_NOT_CONFIGURED: 4404 return(CISS_LD_NONEXISTENT); 4405 4406 case CISS_LSTATUS_OK: 4407 case CISS_LSTATUS_INTERIM_RECOVERY: 4408 case CISS_LSTATUS_READY_RECOVERY: 4409 case CISS_LSTATUS_RECOVERING: 4410 case CISS_LSTATUS_EXPANDING: 4411 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4412 return(CISS_LD_ONLINE); 4413 4414 case CISS_LSTATUS_FAILED: 4415 case CISS_LSTATUS_WRONG_PDRIVE: 4416 case CISS_LSTATUS_MISSING_PDRIVE: 4417 case CISS_LSTATUS_BECOMING_READY: 4418 default: 4419 return(CISS_LD_OFFLINE); 4420 } 4421 } 4422 4423 4424 /************************************************************************ 4425 * Return a name for a logical drive's organisation. 4426 */ 4427 static const char * 4428 ciss_name_ldrive_org(int org) 4429 { 4430 switch(org) { 4431 case CISS_LDRIVE_RAID0: 4432 return("RAID 0"); 4433 case CISS_LDRIVE_RAID1: 4434 return("RAID 1(1+0)"); 4435 case CISS_LDRIVE_RAID4: 4436 return("RAID 4"); 4437 case CISS_LDRIVE_RAID5: 4438 return("RAID 5"); 4439 case CISS_LDRIVE_RAID51: 4440 return("RAID 5+1"); 4441 case CISS_LDRIVE_RAIDADG: 4442 return("RAID ADG"); 4443 } 4444 return("unkown"); 4445 } 4446 4447 /************************************************************************ 4448 * Return a name for a command status value. 4449 */ 4450 static const char * 4451 ciss_name_command_status(int status) 4452 { 4453 switch(status) { 4454 case CISS_CMD_STATUS_SUCCESS: 4455 return("success"); 4456 case CISS_CMD_STATUS_TARGET_STATUS: 4457 return("target status"); 4458 case CISS_CMD_STATUS_DATA_UNDERRUN: 4459 return("data underrun"); 4460 case CISS_CMD_STATUS_DATA_OVERRUN: 4461 return("data overrun"); 4462 case CISS_CMD_STATUS_INVALID_COMMAND: 4463 return("invalid command"); 4464 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4465 return("protocol error"); 4466 case CISS_CMD_STATUS_HARDWARE_ERROR: 4467 return("hardware error"); 4468 case CISS_CMD_STATUS_CONNECTION_LOST: 4469 return("connection lost"); 4470 case CISS_CMD_STATUS_ABORTED: 4471 return("aborted"); 4472 case CISS_CMD_STATUS_ABORT_FAILED: 4473 return("abort failed"); 4474 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4475 return("unsolicited abort"); 4476 case CISS_CMD_STATUS_TIMEOUT: 4477 return("timeout"); 4478 case CISS_CMD_STATUS_UNABORTABLE: 4479 return("unabortable"); 4480 } 4481 return("unknown status"); 4482 } 4483 4484 /************************************************************************ 4485 * Handle an open on the control device. 4486 */ 4487 static int 4488 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4489 { 4490 struct ciss_softc *sc; 4491 4492 debug_called(1); 4493 4494 sc = (struct ciss_softc *)dev->si_drv1; 4495 4496 /* we might want to veto if someone already has us open */ 4497 4498 mtx_lock(&sc->ciss_mtx); 4499 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4500 mtx_unlock(&sc->ciss_mtx); 4501 return(0); 4502 } 4503 4504 /************************************************************************ 4505 * Handle the last close on the control device. 4506 */ 4507 static int 4508 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4509 { 4510 struct ciss_softc *sc; 4511 4512 debug_called(1); 4513 4514 sc = (struct ciss_softc *)dev->si_drv1; 4515 4516 mtx_lock(&sc->ciss_mtx); 4517 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4518 mtx_unlock(&sc->ciss_mtx); 4519 return (0); 4520 } 4521 4522 /******************************************************************************** 4523 * Handle adapter-specific control operations. 4524 * 4525 * Note that the API here is compatible with the Linux driver, in order to 4526 * simplify the porting of Compaq's userland tools. 4527 */ 4528 static int 4529 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4530 { 4531 struct ciss_softc *sc; 4532 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4533 #ifdef __amd64__ 4534 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4535 IOCTL_Command_struct ioc_swab; 4536 #endif 4537 int error; 4538 4539 debug_called(1); 4540 4541 sc = (struct ciss_softc *)dev->si_drv1; 4542 error = 0; 4543 mtx_lock(&sc->ciss_mtx); 4544 4545 switch(cmd) { 4546 case CCISS_GETQSTATS: 4547 { 4548 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4549 4550 switch (cr->cs_item) { 4551 case CISSQ_FREE: 4552 case CISSQ_NOTIFY: 4553 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4554 sizeof(struct ciss_qstat)); 4555 break; 4556 default: 4557 error = ENOIOCTL; 4558 break; 4559 } 4560 4561 break; 4562 } 4563 4564 case CCISS_GETPCIINFO: 4565 { 4566 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4567 4568 pis->bus = pci_get_bus(sc->ciss_dev); 4569 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4570 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4571 pci_get_subdevice(sc->ciss_dev); 4572 4573 break; 4574 } 4575 4576 case CCISS_GETINTINFO: 4577 { 4578 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4579 4580 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4581 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4582 4583 break; 4584 } 4585 4586 case CCISS_SETINTINFO: 4587 { 4588 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4589 4590 if ((cis->delay == 0) && (cis->count == 0)) { 4591 error = EINVAL; 4592 break; 4593 } 4594 4595 /* 4596 * XXX apparently this is only safe if the controller is idle, 4597 * we should suspend it before doing this. 4598 */ 4599 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4600 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4601 4602 if (ciss_update_config(sc)) 4603 error = EIO; 4604 4605 /* XXX resume the controller here */ 4606 break; 4607 } 4608 4609 case CCISS_GETNODENAME: 4610 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4611 sizeof(NodeName_type)); 4612 break; 4613 4614 case CCISS_SETNODENAME: 4615 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4616 sizeof(NodeName_type)); 4617 if (ciss_update_config(sc)) 4618 error = EIO; 4619 break; 4620 4621 case CCISS_GETHEARTBEAT: 4622 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4623 break; 4624 4625 case CCISS_GETBUSTYPES: 4626 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4627 break; 4628 4629 case CCISS_GETFIRMVER: 4630 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4631 sizeof(FirmwareVer_type)); 4632 break; 4633 4634 case CCISS_GETDRIVERVER: 4635 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4636 break; 4637 4638 case CCISS_REVALIDVOLS: 4639 /* 4640 * This is a bit ugly; to do it "right" we really need 4641 * to find any disks that have changed, kick CAM off them, 4642 * then rescan only these disks. It'd be nice if they 4643 * a) told us which disk(s) they were going to play with, 4644 * and b) which ones had arrived. 8( 4645 */ 4646 break; 4647 4648 #ifdef __amd64__ 4649 case CCISS_PASSTHRU32: 4650 ioc_swab.LUN_info = ioc32->LUN_info; 4651 ioc_swab.Request = ioc32->Request; 4652 ioc_swab.error_info = ioc32->error_info; 4653 ioc_swab.buf_size = ioc32->buf_size; 4654 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4655 ioc = &ioc_swab; 4656 /* FALLTHROUGH */ 4657 #endif 4658 4659 case CCISS_PASSTHRU: 4660 error = ciss_user_command(sc, ioc); 4661 break; 4662 4663 default: 4664 debug(0, "unknown ioctl 0x%lx", cmd); 4665 4666 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4667 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4668 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4669 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4670 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4671 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4672 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4673 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4674 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4675 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4676 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4677 4678 error = ENOIOCTL; 4679 break; 4680 } 4681 4682 mtx_unlock(&sc->ciss_mtx); 4683 return(error); 4684 } 4685