1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/ciss/ciss.c,v 1.113 2012/03/12 08:03:51 scottl Exp $ 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 #include <sys/device.h> 88 89 #include <bus/cam/cam.h> 90 #include <bus/cam/cam_ccb.h> 91 #include <bus/cam/cam_periph.h> 92 #include <bus/cam/cam_sim.h> 93 #include <bus/cam/cam_xpt_sim.h> 94 #include <bus/cam/scsi/scsi_all.h> 95 #include <bus/cam/scsi/scsi_message.h> 96 97 #include <machine/endian.h> 98 #include <sys/rman.h> 99 100 #include <bus/pci/pcireg.h> 101 #include <bus/pci/pcivar.h> 102 103 #include <dev/raid/ciss/cissreg.h> 104 #include <dev/raid/ciss/cissio.h> 105 #include <dev/raid/ciss/cissvar.h> 106 107 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 108 "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_setup_msix(struct ciss_softc *sc); 120 static int ciss_init_perf(struct ciss_softc *sc); 121 static int ciss_wait_adapter(struct ciss_softc *sc); 122 static int ciss_flush_adapter(struct ciss_softc *sc); 123 static int ciss_init_requests(struct ciss_softc *sc); 124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126 static int ciss_identify_adapter(struct ciss_softc *sc); 127 static int ciss_init_logical(struct ciss_softc *sc); 128 static int ciss_init_physical(struct ciss_softc *sc); 129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_update_config(struct ciss_softc *sc); 133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static void ciss_init_sysctl(struct ciss_softc *sc); 135 static void ciss_soft_reset(struct ciss_softc *sc); 136 static void ciss_free(struct ciss_softc *sc); 137 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138 static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140 /* request submission/completion */ 141 static int ciss_start(struct ciss_request *cr); 142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_intr(void *arg); 145 static void ciss_perf_intr(void *arg); 146 static void ciss_perf_msi_intr(void *arg); 147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149 static int ciss_synch_request(struct ciss_request *cr, int timeout); 150 static int ciss_poll_request(struct ciss_request *cr, int timeout); 151 static int ciss_wait_request(struct ciss_request *cr, int timeout); 152 #if 0 153 static int ciss_abort_request(struct ciss_request *cr); 154 #endif 155 156 /* request queueing */ 157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158 static void ciss_preen_command(struct ciss_request *cr); 159 static void ciss_release_request(struct ciss_request *cr); 160 161 /* request helpers */ 162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166 /* DMA map/unmap */ 167 static int ciss_map_request(struct ciss_request *cr); 168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170 static void ciss_unmap_request(struct ciss_request *cr); 171 172 /* CAM interface */ 173 static int ciss_cam_init(struct ciss_softc *sc); 174 static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176 static void ciss_cam_rescan_all(struct ciss_softc *sc); 177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static void ciss_cam_poll(struct cam_sim *sim); 182 static void ciss_cam_complete(struct ciss_request *cr); 183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188 /* periodic status monitoring */ 189 static void ciss_periodic(void *arg); 190 static void ciss_nop_complete(struct ciss_request *cr); 191 static void ciss_disable_adapter(struct ciss_softc *sc); 192 static void ciss_notify_event(struct ciss_softc *sc); 193 static void ciss_notify_complete(struct ciss_request *cr); 194 static int ciss_notify_abort(struct ciss_softc *sc); 195 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200 /* debugging output */ 201 static void ciss_print_request(struct ciss_request *cr); 202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203 static const char *ciss_name_ldrive_status(int status); 204 static int ciss_decode_ldrive_status(int status); 205 static const char *ciss_name_ldrive_org(int org); 206 static const char *ciss_name_command_status(int status); 207 208 /* 209 * PCI bus interface. 210 */ 211 static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 DEVMETHOD_END 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, NULL, NULL); 228 MODULE_VERSION(ciss, 1); 229 MODULE_DEPEND(ciss, cam, 1, 1, 1); 230 MODULE_DEPEND(ciss, pci, 1, 1, 1); 231 232 /* 233 * Control device interface. 234 */ 235 static d_open_t ciss_open; 236 static d_close_t ciss_close; 237 static d_ioctl_t ciss_ioctl; 238 239 static struct dev_ops ciss_ops = { 240 { "ciss", 0, 0 }, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 286 static struct 287 { 288 u_int16_t subvendor; 289 u_int16_t subdevice; 290 int flags; 291 char *desc; 292 } ciss_vendor_data[] = { 293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 339 { 0, 0, 0, NULL } 340 }; 341 342 /************************************************************************ 343 * Find a match for the device in our list of known adapters. 344 */ 345 static int 346 ciss_lookup(device_t dev) 347 { 348 int i; 349 350 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 351 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 352 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 353 return(i); 354 } 355 return(-1); 356 } 357 358 /************************************************************************ 359 * Match a known CISS adapter. 360 */ 361 static int 362 ciss_probe(device_t dev) 363 { 364 int i; 365 366 i = ciss_lookup(dev); 367 if (i != -1) { 368 device_set_desc(dev, ciss_vendor_data[i].desc); 369 return(BUS_PROBE_DEFAULT); 370 } 371 return(ENOENT); 372 } 373 374 /************************************************************************ 375 * Attach the driver to this adapter. 376 */ 377 static int 378 ciss_attach(device_t dev) 379 { 380 struct ciss_softc *sc; 381 int error; 382 383 debug_called(1); 384 385 #ifdef CISS_DEBUG 386 /* print structure/union sizes */ 387 debug_struct(ciss_command); 388 debug_struct(ciss_header); 389 debug_union(ciss_device_address); 390 debug_struct(ciss_cdb); 391 debug_struct(ciss_report_cdb); 392 debug_struct(ciss_notify_cdb); 393 debug_struct(ciss_notify); 394 debug_struct(ciss_message_cdb); 395 debug_struct(ciss_error_info_pointer); 396 debug_struct(ciss_error_info); 397 debug_struct(ciss_sg_entry); 398 debug_struct(ciss_config_table); 399 debug_struct(ciss_bmic_cdb); 400 debug_struct(ciss_bmic_id_ldrive); 401 debug_struct(ciss_bmic_id_lstatus); 402 debug_struct(ciss_bmic_id_table); 403 debug_struct(ciss_bmic_id_pdrive); 404 debug_struct(ciss_bmic_blink_pdrive); 405 debug_struct(ciss_bmic_flush_cache); 406 debug_const(CISS_MAX_REQUESTS); 407 debug_const(CISS_MAX_LOGICAL); 408 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 409 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 410 debug_const(CISS_COMMAND_ALLOC_SIZE); 411 debug_const(CISS_COMMAND_SG_LENGTH); 412 413 debug_type(cciss_pci_info_struct); 414 debug_type(cciss_coalint_struct); 415 debug_type(cciss_coalint_struct); 416 debug_type(NodeName_type); 417 debug_type(NodeName_type); 418 debug_type(Heartbeat_type); 419 debug_type(BusTypes_type); 420 debug_type(FirmwareVer_type); 421 debug_type(DriverVer_type); 422 debug_type(IOCTL_Command_struct); 423 #endif 424 425 sc = device_get_softc(dev); 426 sc->ciss_dev = dev; 427 lockinit(&sc->ciss_lock, "cissmtx", 0, LK_CANRECURSE); 428 callout_init(&sc->ciss_periodic); 429 430 /* 431 * Do PCI-specific init. 432 */ 433 if ((error = ciss_init_pci(sc)) != 0) 434 goto out; 435 436 /* 437 * Initialise driver queues. 438 */ 439 ciss_initq_free(sc); 440 ciss_initq_notify(sc); 441 442 /* 443 * Initalize device sysctls. 444 */ 445 ciss_init_sysctl(sc); 446 447 /* 448 * Initialise command/request pool. 449 */ 450 if ((error = ciss_init_requests(sc)) != 0) 451 goto out; 452 453 /* 454 * Get adapter information. 455 */ 456 if ((error = ciss_identify_adapter(sc)) != 0) 457 goto out; 458 459 /* 460 * Find all the physical devices. 461 */ 462 if ((error = ciss_init_physical(sc)) != 0) 463 goto out; 464 465 /* 466 * Build our private table of logical devices. 467 */ 468 if ((error = ciss_init_logical(sc)) != 0) 469 goto out; 470 471 /* 472 * Enable interrupts so that the CAM scan can complete. 473 */ 474 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 475 476 /* 477 * Initialise the CAM interface. 478 */ 479 if ((error = ciss_cam_init(sc)) != 0) 480 goto out; 481 482 /* 483 * Start the heartbeat routine and event chain. 484 */ 485 ciss_periodic(sc); 486 487 /* 488 * Create the control device. 489 */ 490 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 491 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 492 "ciss%d", device_get_unit(sc->ciss_dev)); 493 sc->ciss_dev_t->si_drv1 = sc; 494 495 /* 496 * The adapter is running; synchronous commands can now sleep 497 * waiting for an interrupt to signal completion. 498 */ 499 sc->ciss_flags |= CISS_FLAG_RUNNING; 500 501 ciss_spawn_notify_thread(sc); 502 503 error = 0; 504 out: 505 if (error != 0) { 506 /* ciss_free() expects the mutex to be held */ 507 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 508 ciss_free(sc); 509 } 510 return(error); 511 } 512 513 /************************************************************************ 514 * Detach the driver from this adapter. 515 */ 516 static int 517 ciss_detach(device_t dev) 518 { 519 struct ciss_softc *sc = device_get_softc(dev); 520 521 debug_called(1); 522 523 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 524 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 525 lockmgr(&sc->ciss_lock, LK_RELEASE); 526 return (EBUSY); 527 } 528 529 /* flush adapter cache */ 530 ciss_flush_adapter(sc); 531 532 /* release all resources. The mutex is released and freed here too. */ 533 ciss_free(sc); 534 535 return(0); 536 } 537 538 /************************************************************************ 539 * Prepare adapter for system shutdown. 540 */ 541 static int 542 ciss_shutdown(device_t dev) 543 { 544 struct ciss_softc *sc = device_get_softc(dev); 545 546 debug_called(1); 547 548 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 549 /* flush adapter cache */ 550 ciss_flush_adapter(sc); 551 552 if (sc->ciss_soft_reset) 553 ciss_soft_reset(sc); 554 lockmgr(&sc->ciss_lock, LK_RELEASE); 555 556 return(0); 557 } 558 559 static void 560 ciss_init_sysctl(struct ciss_softc *sc) 561 { 562 sysctl_ctx_init(&sc->ciss_sysctl_ctx); 563 sc->ciss_sysctl_tree = SYSCTL_ADD_NODE(&sc->ciss_sysctl_ctx, 564 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 565 device_get_nameunit(sc->ciss_dev), CTLFLAG_RD, 0, ""); 566 SYSCTL_ADD_INT(&sc->ciss_sysctl_ctx, 567 SYSCTL_CHILDREN(sc->ciss_sysctl_tree), 568 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 569 } 570 571 /************************************************************************ 572 * Perform PCI-specific attachment actions. 573 */ 574 static int 575 ciss_init_pci(struct ciss_softc *sc) 576 { 577 uintptr_t cbase, csize, cofs; 578 uint32_t method, supported_methods; 579 int error, sqmask, i; 580 void *intr; 581 int use_msi; 582 u_int irq_flags; 583 584 debug_called(1); 585 586 /* 587 * Work out adapter type. 588 */ 589 i = ciss_lookup(sc->ciss_dev); 590 if (i < 0) { 591 ciss_printf(sc, "unknown adapter type\n"); 592 return (ENXIO); 593 } 594 595 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 596 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 597 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 598 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 599 } else { 600 /* 601 * XXX Big hammer, masks/unmasks all possible interrupts. This should 602 * work on all hardware variants. Need to add code to handle the 603 * "controller crashed" interupt bit that this unmasks. 604 */ 605 sqmask = ~0; 606 } 607 608 /* 609 * Allocate register window first (we need this to find the config 610 * struct). 611 */ 612 error = ENXIO; 613 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 614 if ((sc->ciss_regs_resource = 615 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 616 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 617 ciss_printf(sc, "can't allocate register window\n"); 618 return(ENXIO); 619 } 620 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 621 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 622 623 /* 624 * Find the BAR holding the config structure. If it's not the one 625 * we already mapped for registers, map it too. 626 */ 627 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 628 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 629 if ((sc->ciss_cfg_resource = 630 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 631 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 632 ciss_printf(sc, "can't allocate config window\n"); 633 return(ENXIO); 634 } 635 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 636 csize = rman_get_end(sc->ciss_cfg_resource) - 637 rman_get_start(sc->ciss_cfg_resource) + 1; 638 } else { 639 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 640 csize = rman_get_end(sc->ciss_regs_resource) - 641 rman_get_start(sc->ciss_regs_resource) + 1; 642 } 643 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 644 645 /* 646 * Use the base/size/offset values we just calculated to 647 * sanity-check the config structure. If it's OK, point to it. 648 */ 649 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 650 ciss_printf(sc, "config table outside window\n"); 651 return(ENXIO); 652 } 653 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 654 debug(1, "config struct at %p", sc->ciss_cfg); 655 656 /* 657 * Calculate the number of request structures/commands we are 658 * going to provide for this adapter. 659 */ 660 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 661 662 /* 663 * Validate the config structure. If we supported other transport 664 * methods, we could select amongst them at this point in time. 665 */ 666 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 667 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 668 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 669 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 670 return(ENXIO); 671 } 672 673 /* 674 * Select the mode of operation, prefer Performant. 675 */ 676 if (!(sc->ciss_cfg->supported_methods & 677 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 678 ciss_printf(sc, "No supported transport layers: 0x%x\n", 679 sc->ciss_cfg->supported_methods); 680 } 681 682 switch (ciss_force_transport) { 683 case 1: 684 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 685 break; 686 case 2: 687 supported_methods = CISS_TRANSPORT_METHOD_PERF; 688 break; 689 default: 690 supported_methods = sc->ciss_cfg->supported_methods; 691 break; 692 } 693 694 setup: 695 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 696 method = CISS_TRANSPORT_METHOD_PERF; 697 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 698 sc->ciss_cfg->transport_offset); 699 if (ciss_init_perf(sc)) { 700 supported_methods &= ~method; 701 goto setup; 702 } 703 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 704 method = CISS_TRANSPORT_METHOD_SIMPLE; 705 } else { 706 ciss_printf(sc, "No supported transport methods: 0x%x\n", 707 sc->ciss_cfg->supported_methods); 708 return(ENXIO); 709 } 710 711 /* 712 * Tell it we're using the low 4GB of RAM. Set the default interrupt 713 * coalescing options. 714 */ 715 sc->ciss_cfg->requested_method = method; 716 sc->ciss_cfg->command_physlimit = 0; 717 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 718 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 719 720 #ifdef __i386__ 721 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 722 #endif 723 724 if (ciss_update_config(sc)) { 725 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 726 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 727 return(ENXIO); 728 } 729 if ((sc->ciss_cfg->active_method & method) == 0) { 730 supported_methods &= ~method; 731 if (supported_methods == 0) { 732 ciss_printf(sc, "adapter refuses to go into available transports " 733 "mode (0x%x, 0x%x)\n", supported_methods, 734 sc->ciss_cfg->active_method); 735 return(ENXIO); 736 } else 737 goto setup; 738 } 739 740 /* 741 * Wait for the adapter to come ready. 742 */ 743 if ((error = ciss_wait_adapter(sc)) != 0) 744 return(error); 745 746 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 747 * interrupts have a rid of 0, this will be overridden if MSIX is used. 748 */ 749 sc->ciss_irq_rid[0] = 0; 750 if (method == CISS_TRANSPORT_METHOD_PERF) { 751 ciss_printf(sc, "PERFORMANT Transport\n"); 752 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 753 intr = ciss_perf_msi_intr; 754 } else { 755 intr = ciss_perf_intr; 756 } 757 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 758 * Unfortunately, there is no good way to know if this is a SAS 759 * controller. Hopefully enabling this bit universally will work OK. 760 * It seems to work fine for SA6i controllers. 761 */ 762 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 763 764 } else { 765 ciss_printf(sc, "SIMPLE Transport\n"); 766 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 767 if (ciss_force_interrupt == 2) 768 /* If this fails, we automatically revert to INTx */ 769 ciss_setup_msix(sc); 770 sc->ciss_perf = NULL; 771 intr = ciss_intr; 772 sc->ciss_interrupt_mask = sqmask; 773 } 774 /* 775 * Turn off interrupts before we go routing anything. 776 */ 777 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 778 779 /* 780 * Allocate and set up our interrupt. 781 */ 782 #ifdef __DragonFly__ /* DragonFly specific MSI setup */ 783 use_msi = (intr == ciss_perf_msi_intr); 784 #endif 785 sc->ciss_irq_rid[0] = 0; 786 sc->ciss_irq_type = pci_alloc_1intr(sc->ciss_dev, use_msi, 787 &sc->ciss_irq_rid[0], &irq_flags); 788 if ((sc->ciss_irq_resource = 789 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 790 irq_flags)) == NULL) { 791 ciss_printf(sc, "can't allocate interrupt\n"); 792 return(ENXIO); 793 } 794 795 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 796 INTR_MPSAFE, intr, sc, 797 &sc->ciss_intr, NULL)) { 798 ciss_printf(sc, "can't set up interrupt\n"); 799 return(ENXIO); 800 } 801 802 /* 803 * Allocate the parent bus DMA tag appropriate for our PCI 804 * interface. 805 * 806 * Note that "simple" adapters can only address within a 32-bit 807 * span. 808 */ 809 if (bus_dma_tag_create(NULL, /* PCI parent */ 810 1, 0, /* alignment, boundary */ 811 BUS_SPACE_MAXADDR, /* lowaddr */ 812 BUS_SPACE_MAXADDR, /* highaddr */ 813 NULL, NULL, /* filter, filterarg */ 814 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 815 CISS_MAX_SG_ELEMENTS, /* nsegments */ 816 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 817 0, /* flags */ 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 &sc->ciss_buffer_dmat)) { 836 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 837 return(ENOMEM); 838 } 839 return(0); 840 } 841 842 /************************************************************************ 843 * Setup MSI/MSIX operation (Performant only) 844 * Four interrupts are available, but we only use 1 right now. If MSI-X 845 * isn't avaialble, try using MSI instead. 846 */ 847 static int 848 ciss_setup_msix(struct ciss_softc *sc) 849 { 850 int val, i; 851 852 /* Weed out devices that don't actually support MSI */ 853 i = ciss_lookup(sc->ciss_dev); 854 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 855 return (EINVAL); 856 857 #if 0 /* XXX swildner */ 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 #endif 875 876 val = 1; 877 sc->ciss_msi = val; 878 if (bootverbose) 879 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 880 (val != 1) ? "s" : ""); 881 882 for (i = 0; i < val; i++) 883 sc->ciss_irq_rid[i] = i + 1; 884 885 return (0); 886 887 } 888 889 /************************************************************************ 890 * Setup the Performant structures. 891 */ 892 static int 893 ciss_init_perf(struct ciss_softc *sc) 894 { 895 struct ciss_perf_config *pc = sc->ciss_perf; 896 int reply_size; 897 898 /* 899 * Create the DMA tag for the reply queue. 900 */ 901 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 902 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 903 1, 0, /* alignment, boundary */ 904 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 905 BUS_SPACE_MAXADDR, /* highaddr */ 906 NULL, NULL, /* filter, filterarg */ 907 reply_size, 1, /* maxsize, nsegments */ 908 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 909 0, /* flags */ 910 &sc->ciss_reply_dmat)) { 911 ciss_printf(sc, "can't allocate reply DMA tag\n"); 912 return(ENOMEM); 913 } 914 /* 915 * Allocate memory and make it available for DMA. 916 */ 917 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 918 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 919 ciss_printf(sc, "can't allocate reply memory\n"); 920 return(ENOMEM); 921 } 922 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 923 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 924 bzero(sc->ciss_reply, reply_size); 925 926 sc->ciss_cycle = 0x1; 927 sc->ciss_rqidx = 0; 928 929 /* 930 * Preload the fetch table with common command sizes. This allows the 931 * hardware to not waste bus cycles for typical i/o commands, but also not 932 * tax the driver to be too exact in choosing sizes. The table is optimized 933 * for page-aligned i/o's, but since most i/o comes from the various pagers, 934 * it's a reasonable assumption to make. 935 */ 936 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 937 pc->fetch_count[CISS_SG_FETCH_1] = 938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 939 pc->fetch_count[CISS_SG_FETCH_2] = 940 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 941 pc->fetch_count[CISS_SG_FETCH_4] = 942 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 943 pc->fetch_count[CISS_SG_FETCH_8] = 944 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 945 pc->fetch_count[CISS_SG_FETCH_16] = 946 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 947 pc->fetch_count[CISS_SG_FETCH_32] = 948 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 949 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 950 951 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 952 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 953 pc->rq_bank_hi = 0; 954 pc->rq_bank_lo = 0; 955 pc->rq[0].rq_addr_hi = 0x0; 956 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 957 958 return(0); 959 } 960 961 /************************************************************************ 962 * Wait for the adapter to come ready. 963 */ 964 static int 965 ciss_wait_adapter(struct ciss_softc *sc) 966 { 967 int i; 968 969 debug_called(1); 970 971 /* 972 * Wait for the adapter to come ready. 973 */ 974 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 975 ciss_printf(sc, "waiting for adapter to come ready...\n"); 976 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 977 DELAY(1000000); /* one second */ 978 if (i > 30) { 979 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 980 return(EIO); 981 } 982 } 983 } 984 return(0); 985 } 986 987 /************************************************************************ 988 * Flush the adapter cache. 989 */ 990 static int 991 ciss_flush_adapter(struct ciss_softc *sc) 992 { 993 struct ciss_request *cr; 994 struct ciss_bmic_flush_cache *cbfc; 995 int error, command_status; 996 997 debug_called(1); 998 999 cr = NULL; 1000 cbfc = NULL; 1001 1002 /* 1003 * Build a BMIC request to flush the cache. We don't disable 1004 * it, as we may be going to do more I/O (eg. we are emulating 1005 * the Synchronise Cache command). 1006 */ 1007 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1008 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1009 (void **)&cbfc, sizeof(*cbfc))) != 0) 1010 goto out; 1011 1012 /* 1013 * Submit the request and wait for it to complete. 1014 */ 1015 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1016 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1017 goto out; 1018 } 1019 1020 /* 1021 * Check response. 1022 */ 1023 ciss_report_request(cr, &command_status, NULL); 1024 switch(command_status) { 1025 case CISS_CMD_STATUS_SUCCESS: 1026 break; 1027 default: 1028 ciss_printf(sc, "error flushing cache (%s)\n", 1029 ciss_name_command_status(command_status)); 1030 error = EIO; 1031 goto out; 1032 } 1033 1034 out: 1035 if (cbfc != NULL) 1036 kfree(cbfc, CISS_MALLOC_CLASS); 1037 if (cr != NULL) 1038 ciss_release_request(cr); 1039 return(error); 1040 } 1041 1042 static void 1043 ciss_soft_reset(struct ciss_softc *sc) 1044 { 1045 struct ciss_request *cr = NULL; 1046 struct ciss_command *cc; 1047 int i, error = 0; 1048 1049 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1050 /* only reset proxy controllers */ 1051 if (sc->ciss_controllers[i].physical.bus == 0) 1052 continue; 1053 1054 if ((error = ciss_get_request(sc, &cr)) != 0) 1055 break; 1056 1057 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1058 NULL, 0)) != 0) 1059 break; 1060 1061 cc = cr->cr_cc; 1062 cc->header.address = sc->ciss_controllers[i]; 1063 1064 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1065 break; 1066 1067 ciss_release_request(cr); 1068 } 1069 1070 if (error) 1071 ciss_printf(sc, "error resetting controller (%d)\n", error); 1072 1073 if (cr != NULL) 1074 ciss_release_request(cr); 1075 } 1076 1077 /************************************************************************ 1078 * Allocate memory for the adapter command structures, initialise 1079 * the request structures. 1080 * 1081 * Note that the entire set of commands are allocated in a single 1082 * contiguous slab. 1083 */ 1084 static int 1085 ciss_init_requests(struct ciss_softc *sc) 1086 { 1087 struct ciss_request *cr; 1088 int i; 1089 1090 debug_called(1); 1091 1092 if (bootverbose) 1093 ciss_printf(sc, "using %d of %d available commands\n", 1094 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1095 1096 /* 1097 * Create the DMA tag for commands. 1098 */ 1099 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1100 32, 0, /* alignment, boundary */ 1101 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1102 BUS_SPACE_MAXADDR, /* highaddr */ 1103 NULL, NULL, /* filter, filterarg */ 1104 CISS_COMMAND_ALLOC_SIZE * 1105 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1106 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1107 0, /* flags */ 1108 &sc->ciss_command_dmat)) { 1109 ciss_printf(sc, "can't allocate command DMA tag\n"); 1110 return(ENOMEM); 1111 } 1112 /* 1113 * Allocate memory and make it available for DMA. 1114 */ 1115 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1116 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1117 ciss_printf(sc, "can't allocate command memory\n"); 1118 return(ENOMEM); 1119 } 1120 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1121 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1122 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1123 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1124 1125 /* 1126 * Set up the request and command structures, push requests onto 1127 * the free queue. 1128 */ 1129 for (i = 1; i < sc->ciss_max_requests; i++) { 1130 cr = &sc->ciss_request[i]; 1131 cr->cr_sc = sc; 1132 cr->cr_tag = i; 1133 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1134 CISS_COMMAND_ALLOC_SIZE * i); 1135 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1136 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1137 ciss_enqueue_free(cr); 1138 } 1139 return(0); 1140 } 1141 1142 static void 1143 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1144 { 1145 uint32_t *addr; 1146 1147 addr = arg; 1148 *addr = segs[0].ds_addr; 1149 } 1150 1151 /************************************************************************ 1152 * Identify the adapter, print some information about it. 1153 */ 1154 static int 1155 ciss_identify_adapter(struct ciss_softc *sc) 1156 { 1157 struct ciss_request *cr; 1158 int error, command_status; 1159 1160 debug_called(1); 1161 1162 cr = NULL; 1163 1164 /* 1165 * Get a request, allocate storage for the adapter data. 1166 */ 1167 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1168 (void **)&sc->ciss_id, 1169 sizeof(*sc->ciss_id))) != 0) 1170 goto out; 1171 1172 /* 1173 * Submit the request and wait for it to complete. 1174 */ 1175 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1176 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1177 goto out; 1178 } 1179 1180 /* 1181 * Check response. 1182 */ 1183 ciss_report_request(cr, &command_status, NULL); 1184 switch(command_status) { 1185 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1186 break; 1187 case CISS_CMD_STATUS_DATA_UNDERRUN: 1188 case CISS_CMD_STATUS_DATA_OVERRUN: 1189 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1190 default: 1191 ciss_printf(sc, "error reading adapter information (%s)\n", 1192 ciss_name_command_status(command_status)); 1193 error = EIO; 1194 goto out; 1195 } 1196 1197 /* sanity-check reply */ 1198 if (!sc->ciss_id->big_map_supported) { 1199 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1200 error = ENXIO; 1201 goto out; 1202 } 1203 1204 #if 0 1205 /* XXX later revisions may not need this */ 1206 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1207 #endif 1208 1209 /* XXX only really required for old 5300 adapters? */ 1210 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1211 1212 /* print information */ 1213 if (bootverbose) { 1214 #if 0 /* XXX proxy volumes??? */ 1215 ciss_printf(sc, " %d logical drive%s configured\n", 1216 sc->ciss_id->configured_logical_drives, 1217 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1218 #endif 1219 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1220 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1221 1222 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1223 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1224 ciss_printf(sc, " supported I/O methods 0x%b\n", 1225 sc->ciss_cfg->supported_methods, 1226 "\20\1READY\2simple\3performant\4MEMQ\n"); 1227 ciss_printf(sc, " active I/O method 0x%b\n", 1228 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1229 ciss_printf(sc, " 4G page base 0x%08x\n", 1230 sc->ciss_cfg->command_physlimit); 1231 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1232 sc->ciss_cfg->interrupt_coalesce_delay); 1233 ciss_printf(sc, " interrupt coalesce count %d\n", 1234 sc->ciss_cfg->interrupt_coalesce_count); 1235 ciss_printf(sc, " max outstanding commands %d\n", 1236 sc->ciss_cfg->max_outstanding_commands); 1237 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1238 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1239 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1240 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1241 } 1242 1243 out: 1244 if (error) { 1245 if (sc->ciss_id != NULL) { 1246 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1247 sc->ciss_id = NULL; 1248 } 1249 } 1250 if (cr != NULL) 1251 ciss_release_request(cr); 1252 return(error); 1253 } 1254 1255 /************************************************************************ 1256 * Helper routine for generating a list of logical and physical luns. 1257 */ 1258 static struct ciss_lun_report * 1259 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1260 { 1261 struct ciss_request *cr; 1262 struct ciss_command *cc; 1263 struct ciss_report_cdb *crc; 1264 struct ciss_lun_report *cll; 1265 int command_status; 1266 int report_size; 1267 int error = 0; 1268 1269 debug_called(1); 1270 1271 cr = NULL; 1272 cll = NULL; 1273 1274 /* 1275 * Get a request, allocate storage for the address list. 1276 */ 1277 if ((error = ciss_get_request(sc, &cr)) != 0) 1278 goto out; 1279 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1280 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1281 1282 /* 1283 * Build the Report Logical/Physical LUNs command. 1284 */ 1285 cc = cr->cr_cc; 1286 cr->cr_data = cll; 1287 cr->cr_length = report_size; 1288 cr->cr_flags = CISS_REQ_DATAIN; 1289 1290 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1291 cc->header.address.physical.bus = 0; 1292 cc->header.address.physical.target = 0; 1293 cc->cdb.cdb_length = sizeof(*crc); 1294 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1295 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1296 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1297 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1298 1299 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1300 bzero(crc, sizeof(*crc)); 1301 crc->opcode = opcode; 1302 crc->length = htonl(report_size); /* big-endian field */ 1303 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1304 1305 /* 1306 * Submit the request and wait for it to complete. (timeout 1307 * here should be much greater than above) 1308 */ 1309 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1310 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1311 goto out; 1312 } 1313 1314 /* 1315 * Check response. Note that data over/underrun is OK. 1316 */ 1317 ciss_report_request(cr, &command_status, NULL); 1318 switch(command_status) { 1319 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1320 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1321 break; 1322 case CISS_CMD_STATUS_DATA_OVERRUN: 1323 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1324 CISS_MAX_LOGICAL); 1325 break; 1326 default: 1327 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1328 ciss_name_command_status(command_status)); 1329 error = EIO; 1330 goto out; 1331 } 1332 ciss_release_request(cr); 1333 cr = NULL; 1334 1335 out: 1336 if (cr != NULL) 1337 ciss_release_request(cr); 1338 if (error && cll != NULL) { 1339 kfree(cll, CISS_MALLOC_CLASS); 1340 cll = NULL; 1341 } 1342 return(cll); 1343 } 1344 1345 /************************************************************************ 1346 * Find logical drives on the adapter. 1347 */ 1348 static int 1349 ciss_init_logical(struct ciss_softc *sc) 1350 { 1351 struct ciss_lun_report *cll; 1352 int error = 0, i, j; 1353 int ndrives; 1354 1355 debug_called(1); 1356 1357 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1358 CISS_MAX_LOGICAL); 1359 if (cll == NULL) { 1360 error = ENXIO; 1361 goto out; 1362 } 1363 1364 /* sanity-check reply */ 1365 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1366 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1367 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1368 ndrives, CISS_MAX_LOGICAL); 1369 error = ENXIO; 1370 goto out; 1371 } 1372 1373 /* 1374 * Save logical drive information. 1375 */ 1376 if (bootverbose) { 1377 ciss_printf(sc, "%d logical drive%s\n", 1378 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1379 } 1380 1381 sc->ciss_logical = 1382 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1383 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1384 1385 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1386 sc->ciss_logical[i] = 1387 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1388 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1389 1390 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1391 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1392 } 1393 1394 1395 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1396 if (i < ndrives) { 1397 struct ciss_ldrive *ld; 1398 int bus, target; 1399 1400 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1401 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1402 ld = &sc->ciss_logical[bus][target]; 1403 1404 ld->cl_address = cll->lun[i]; 1405 ld->cl_controller = &sc->ciss_controllers[bus]; 1406 if (ciss_identify_logical(sc, ld) != 0) 1407 continue; 1408 /* 1409 * If the drive has had media exchanged, we should bring it online. 1410 */ 1411 if (ld->cl_lstatus->media_exchanged) 1412 ciss_accept_media(sc, ld); 1413 1414 } 1415 } 1416 1417 out: 1418 if (cll != NULL) 1419 kfree(cll, CISS_MALLOC_CLASS); 1420 return(error); 1421 } 1422 1423 static int 1424 ciss_init_physical(struct ciss_softc *sc) 1425 { 1426 struct ciss_lun_report *cll; 1427 int error = 0, i; 1428 int nphys; 1429 int bus; 1430 1431 debug_called(1); 1432 1433 bus = 0; 1434 1435 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1436 CISS_MAX_PHYSICAL); 1437 if (cll == NULL) { 1438 error = ENXIO; 1439 goto out; 1440 } 1441 1442 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1443 1444 if (bootverbose) { 1445 ciss_printf(sc, "%d physical device%s\n", 1446 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1447 } 1448 1449 /* 1450 * Figure out the bus mapping. 1451 * Logical buses include both the local logical bus for local arrays and 1452 * proxy buses for remote arrays. Physical buses are numbered by the 1453 * controller and represent physical buses that hold physical devices. 1454 * We shift these bus numbers so that everything fits into a single flat 1455 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1456 * numbers, and the physical bus numbers are shifted to be above that. 1457 * This results in the various driver arrays being indexed as follows: 1458 * 1459 * ciss_controllers[] - indexed by logical bus 1460 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1461 * being shifted by 32. 1462 * ciss_logical[][] - indexed by logical bus 1463 * ciss_physical[][] - indexed by physical bus 1464 * 1465 * XXX This is getting more and more hackish. CISS really doesn't play 1466 * well with a standard SCSI model; devices are addressed via magic 1467 * cookies, not via b/t/l addresses. Since there is no way to store 1468 * the cookie in the CAM device object, we have to keep these lookup 1469 * tables handy so that the devices can be found quickly at the cost 1470 * of wasting memory and having a convoluted lookup scheme. This 1471 * driver should probably be converted to block interface. 1472 */ 1473 /* 1474 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1475 * controller. A proxy controller is another physical controller 1476 * behind the primary PCI controller. We need to know about this 1477 * so that BMIC commands can be properly targeted. There can be 1478 * proxy controllers attached to a single PCI controller, so 1479 * find the highest numbered one so the array can be properly 1480 * sized. 1481 */ 1482 sc->ciss_max_logical_bus = 1; 1483 for (i = 0; i < nphys; i++) { 1484 if (cll->lun[i].physical.extra_address == 0) { 1485 bus = cll->lun[i].physical.bus; 1486 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1487 } else { 1488 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1489 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1490 } 1491 } 1492 1493 sc->ciss_controllers = 1494 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1495 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1496 1497 /* setup a map of controller addresses */ 1498 for (i = 0; i < nphys; i++) { 1499 if (cll->lun[i].physical.extra_address == 0) { 1500 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1501 } 1502 } 1503 1504 sc->ciss_physical = 1505 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1506 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1507 1508 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1509 sc->ciss_physical[i] = 1510 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1511 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1512 } 1513 1514 ciss_filter_physical(sc, cll); 1515 1516 out: 1517 if (cll != NULL) 1518 kfree(cll, CISS_MALLOC_CLASS); 1519 1520 return(error); 1521 } 1522 1523 static int 1524 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1525 { 1526 u_int32_t ea; 1527 int i, nphys; 1528 int bus, target; 1529 1530 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1531 for (i = 0; i < nphys; i++) { 1532 if (cll->lun[i].physical.extra_address == 0) 1533 continue; 1534 1535 /* 1536 * Filter out devices that we don't want. Level 3 LUNs could 1537 * probably be supported, but the docs don't give enough of a 1538 * hint to know how. 1539 * 1540 * The mode field of the physical address is likely set to have 1541 * hard disks masked out. Honor it unless the user has overridden 1542 * us with the tunable. We also munge the inquiry data for these 1543 * disks so that they only show up as passthrough devices. Keeping 1544 * them visible in this fashion is useful for doing things like 1545 * flashing firmware. 1546 */ 1547 ea = cll->lun[i].physical.extra_address; 1548 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1549 (CISS_EXTRA_MODE2(ea) == 0x3)) 1550 continue; 1551 if ((ciss_expose_hidden_physical == 0) && 1552 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1553 continue; 1554 1555 /* 1556 * Note: CISS firmware numbers physical busses starting at '1', not 1557 * '0'. This numbering is internal to the firmware and is only 1558 * used as a hint here. 1559 */ 1560 bus = CISS_EXTRA_BUS2(ea) - 1; 1561 target = CISS_EXTRA_TARGET2(ea); 1562 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1563 sc->ciss_physical[bus][target].cp_online = 1; 1564 } 1565 1566 return (0); 1567 } 1568 1569 static int 1570 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1571 { 1572 struct ciss_request *cr; 1573 struct ciss_command *cc; 1574 struct scsi_inquiry *inq; 1575 int error; 1576 int command_status; 1577 1578 cr = NULL; 1579 1580 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1581 1582 if ((error = ciss_get_request(sc, &cr)) != 0) 1583 goto out; 1584 1585 cc = cr->cr_cc; 1586 cr->cr_data = &ld->cl_geometry; 1587 cr->cr_length = sizeof(ld->cl_geometry); 1588 cr->cr_flags = CISS_REQ_DATAIN; 1589 1590 cc->header.address = ld->cl_address; 1591 cc->cdb.cdb_length = 6; 1592 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1593 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1594 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1595 cc->cdb.timeout = 30; 1596 1597 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1598 inq->opcode = INQUIRY; 1599 inq->byte2 = SI_EVPD; 1600 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1601 inq->length = sizeof(ld->cl_geometry); 1602 1603 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1604 ciss_printf(sc, "error getting geometry (%d)\n", error); 1605 goto out; 1606 } 1607 1608 ciss_report_request(cr, &command_status, NULL); 1609 switch(command_status) { 1610 case CISS_CMD_STATUS_SUCCESS: 1611 case CISS_CMD_STATUS_DATA_UNDERRUN: 1612 break; 1613 case CISS_CMD_STATUS_DATA_OVERRUN: 1614 ciss_printf(sc, "WARNING: Data overrun\n"); 1615 break; 1616 default: 1617 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1618 ciss_name_command_status(command_status)); 1619 break; 1620 } 1621 1622 out: 1623 if (cr != NULL) 1624 ciss_release_request(cr); 1625 return(error); 1626 } 1627 /************************************************************************ 1628 * Identify a logical drive, initialise state related to it. 1629 */ 1630 static int 1631 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1632 { 1633 struct ciss_request *cr; 1634 struct ciss_command *cc; 1635 struct ciss_bmic_cdb *cbc; 1636 int error, command_status; 1637 1638 debug_called(1); 1639 1640 cr = NULL; 1641 1642 /* 1643 * Build a BMIC request to fetch the drive ID. 1644 */ 1645 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1646 (void **)&ld->cl_ldrive, 1647 sizeof(*ld->cl_ldrive))) != 0) 1648 goto out; 1649 cc = cr->cr_cc; 1650 cc->header.address = *ld->cl_controller; /* target controller */ 1651 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1652 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1653 1654 /* 1655 * Submit the request and wait for it to complete. 1656 */ 1657 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1658 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1659 goto out; 1660 } 1661 1662 /* 1663 * Check response. 1664 */ 1665 ciss_report_request(cr, &command_status, NULL); 1666 switch(command_status) { 1667 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1668 break; 1669 case CISS_CMD_STATUS_DATA_UNDERRUN: 1670 case CISS_CMD_STATUS_DATA_OVERRUN: 1671 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1672 default: 1673 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1674 ciss_name_command_status(command_status)); 1675 error = EIO; 1676 goto out; 1677 } 1678 ciss_release_request(cr); 1679 cr = NULL; 1680 1681 /* 1682 * Build a CISS BMIC command to get the logical drive status. 1683 */ 1684 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1685 goto out; 1686 1687 /* 1688 * Get the logical drive geometry. 1689 */ 1690 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1691 goto out; 1692 1693 /* 1694 * Print the drive's basic characteristics. 1695 */ 1696 if (bootverbose) { 1697 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1698 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1699 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1700 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1701 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1702 ld->cl_ldrive->block_size)); 1703 1704 ciss_print_ldrive(sc, ld); 1705 } 1706 out: 1707 if (error != 0) { 1708 /* make the drive not-exist */ 1709 ld->cl_status = CISS_LD_NONEXISTENT; 1710 if (ld->cl_ldrive != NULL) { 1711 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1712 ld->cl_ldrive = NULL; 1713 } 1714 if (ld->cl_lstatus != NULL) { 1715 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1716 ld->cl_lstatus = NULL; 1717 } 1718 } 1719 if (cr != NULL) 1720 ciss_release_request(cr); 1721 1722 return(error); 1723 } 1724 1725 /************************************************************************ 1726 * Get status for a logical drive. 1727 * 1728 * XXX should we also do this in response to Test Unit Ready? 1729 */ 1730 static int 1731 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1732 { 1733 struct ciss_request *cr; 1734 struct ciss_command *cc; 1735 struct ciss_bmic_cdb *cbc; 1736 int error, command_status; 1737 1738 /* 1739 * Build a CISS BMIC command to get the logical drive status. 1740 */ 1741 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1742 (void **)&ld->cl_lstatus, 1743 sizeof(*ld->cl_lstatus))) != 0) 1744 goto out; 1745 cc = cr->cr_cc; 1746 cc->header.address = *ld->cl_controller; /* target controller */ 1747 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1748 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1749 1750 /* 1751 * Submit the request and wait for it to complete. 1752 */ 1753 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1754 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1755 goto out; 1756 } 1757 1758 /* 1759 * Check response. 1760 */ 1761 ciss_report_request(cr, &command_status, NULL); 1762 switch(command_status) { 1763 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1764 break; 1765 case CISS_CMD_STATUS_DATA_UNDERRUN: 1766 case CISS_CMD_STATUS_DATA_OVERRUN: 1767 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1768 default: 1769 ciss_printf(sc, "error reading logical drive status (%s)\n", 1770 ciss_name_command_status(command_status)); 1771 error = EIO; 1772 goto out; 1773 } 1774 1775 /* 1776 * Set the drive's summary status based on the returned status. 1777 * 1778 * XXX testing shows that a failed JBOD drive comes back at next 1779 * boot in "queued for expansion" mode. WTF? 1780 */ 1781 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1782 1783 out: 1784 if (cr != NULL) 1785 ciss_release_request(cr); 1786 return(error); 1787 } 1788 1789 /************************************************************************ 1790 * Notify the adapter of a config update. 1791 */ 1792 static int 1793 ciss_update_config(struct ciss_softc *sc) 1794 { 1795 int i; 1796 1797 debug_called(1); 1798 1799 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1800 for (i = 0; i < 1000; i++) { 1801 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1802 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1803 return(0); 1804 } 1805 DELAY(1000); 1806 } 1807 return(1); 1808 } 1809 1810 /************************************************************************ 1811 * Accept new media into a logical drive. 1812 * 1813 * XXX The drive has previously been offline; it would be good if we 1814 * could make sure it's not open right now. 1815 */ 1816 static int 1817 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1818 { 1819 struct ciss_request *cr; 1820 struct ciss_command *cc; 1821 struct ciss_bmic_cdb *cbc; 1822 int command_status; 1823 int error = 0, ldrive; 1824 1825 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1826 1827 debug(0, "bringing logical drive %d back online", ldrive); 1828 1829 /* 1830 * Build a CISS BMIC command to bring the drive back online. 1831 */ 1832 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1833 NULL, 0)) != 0) 1834 goto out; 1835 cc = cr->cr_cc; 1836 cc->header.address = *ld->cl_controller; /* target controller */ 1837 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1838 cbc->log_drive = ldrive; 1839 1840 /* 1841 * Submit the request and wait for it to complete. 1842 */ 1843 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1844 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1845 goto out; 1846 } 1847 1848 /* 1849 * Check response. 1850 */ 1851 ciss_report_request(cr, &command_status, NULL); 1852 switch(command_status) { 1853 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1854 /* we should get a logical drive status changed event here */ 1855 break; 1856 default: 1857 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1858 ciss_name_command_status(command_status)); 1859 break; 1860 } 1861 1862 out: 1863 if (cr != NULL) 1864 ciss_release_request(cr); 1865 return(error); 1866 } 1867 1868 /************************************************************************ 1869 * Release adapter resources. 1870 */ 1871 static void 1872 ciss_free(struct ciss_softc *sc) 1873 { 1874 struct ciss_request *cr; 1875 int i, j; 1876 1877 debug_called(1); 1878 1879 /* we're going away */ 1880 sc->ciss_flags |= CISS_FLAG_ABORTING; 1881 1882 /* terminate the periodic heartbeat routine */ 1883 callout_stop(&sc->ciss_periodic); 1884 1885 /* cancel the Event Notify chain */ 1886 ciss_notify_abort(sc); 1887 1888 ciss_kill_notify_thread(sc); 1889 1890 /* disconnect from CAM */ 1891 if (sc->ciss_cam_sim) { 1892 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1893 if (sc->ciss_cam_sim[i]) { 1894 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1895 cam_sim_free(sc->ciss_cam_sim[i]); 1896 } 1897 } 1898 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1899 CISS_PHYSICAL_BASE; i++) { 1900 if (sc->ciss_cam_sim[i]) { 1901 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1902 cam_sim_free(sc->ciss_cam_sim[i]); 1903 } 1904 } 1905 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1906 } 1907 if (sc->ciss_cam_devq) 1908 cam_simq_release(sc->ciss_cam_devq); 1909 1910 /* remove the control device */ 1911 lockmgr(&sc->ciss_lock, LK_RELEASE); 1912 if (sc->ciss_dev_t != NULL) 1913 destroy_dev(sc->ciss_dev_t); 1914 1915 /* Final cleanup of the callout. */ 1916 callout_stop_sync(&sc->ciss_periodic); 1917 lockuninit(&sc->ciss_lock); 1918 1919 /* free the controller data */ 1920 if (sc->ciss_id != NULL) 1921 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1922 1923 /* release I/O resources */ 1924 if (sc->ciss_regs_resource != NULL) 1925 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1926 sc->ciss_regs_rid, sc->ciss_regs_resource); 1927 if (sc->ciss_cfg_resource != NULL) 1928 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1929 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1930 if (sc->ciss_intr != NULL) 1931 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1932 if (sc->ciss_irq_resource != NULL) 1933 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1934 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1935 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI) 1936 pci_release_msi(sc->ciss_dev); 1937 1938 while ((cr = ciss_dequeue_free(sc)) != NULL) 1939 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1940 if (sc->ciss_buffer_dmat) 1941 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1942 1943 /* destroy command memory and DMA tag */ 1944 if (sc->ciss_command != NULL) { 1945 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1946 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1947 } 1948 if (sc->ciss_command_dmat) 1949 bus_dma_tag_destroy(sc->ciss_command_dmat); 1950 1951 if (sc->ciss_reply) { 1952 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1953 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1954 } 1955 if (sc->ciss_reply_dmat) 1956 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1957 1958 /* destroy DMA tags */ 1959 if (sc->ciss_parent_dmat) 1960 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1961 if (sc->ciss_logical) { 1962 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1963 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1964 if (sc->ciss_logical[i][j].cl_ldrive) 1965 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1966 if (sc->ciss_logical[i][j].cl_lstatus) 1967 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1968 } 1969 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1970 } 1971 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1972 } 1973 1974 if (sc->ciss_physical) { 1975 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1976 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1977 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1978 } 1979 1980 if (sc->ciss_controllers) 1981 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1982 1983 sysctl_ctx_free(&sc->ciss_sysctl_ctx); 1984 } 1985 1986 /************************************************************************ 1987 * Give a command to the adapter. 1988 * 1989 * Note that this uses the simple transport layer directly. If we 1990 * want to add support for other layers, we'll need a switch of some 1991 * sort. 1992 * 1993 * Note that the simple transport layer has no way of refusing a 1994 * command; we only have as many request structures as the adapter 1995 * supports commands, so we don't have to check (this presumes that 1996 * the adapter can handle commands as fast as we throw them at it). 1997 */ 1998 static int 1999 ciss_start(struct ciss_request *cr) 2000 { 2001 #ifdef CISS_DEBUG 2002 struct ciss_command *cc; 2003 #endif 2004 int error; 2005 2006 #ifdef CISS_DEBUG 2007 cc = cr->cr_cc; 2008 #endif 2009 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2010 2011 /* 2012 * Map the request's data. 2013 */ 2014 if ((error = ciss_map_request(cr))) 2015 return(error); 2016 2017 #if 0 2018 ciss_print_request(cr); 2019 #endif 2020 2021 return(0); 2022 } 2023 2024 /************************************************************************ 2025 * Fetch completed request(s) from the adapter, queue them for 2026 * completion handling. 2027 * 2028 * Note that this uses the simple transport layer directly. If we 2029 * want to add support for other layers, we'll need a switch of some 2030 * sort. 2031 * 2032 * Note that the simple transport mechanism does not require any 2033 * reentrancy protection; the OPQ read is atomic. If there is a 2034 * chance of a race with something else that might move the request 2035 * off the busy list, then we will have to lock against that 2036 * (eg. timeouts, etc.) 2037 */ 2038 static void 2039 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2040 { 2041 struct ciss_request *cr; 2042 struct ciss_command *cc; 2043 u_int32_t tag, index; 2044 2045 debug_called(3); 2046 2047 /* 2048 * Loop quickly taking requests from the adapter and moving them 2049 * to the completed queue. 2050 */ 2051 for (;;) { 2052 2053 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2054 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2055 break; 2056 index = tag >> 2; 2057 debug(2, "completed command %d%s", index, 2058 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2059 if (index >= sc->ciss_max_requests) { 2060 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2061 continue; 2062 } 2063 cr = &(sc->ciss_request[index]); 2064 cc = cr->cr_cc; 2065 cc->header.host_tag = tag; /* not updated by adapter */ 2066 ciss_enqueue_complete(cr, qh); 2067 } 2068 2069 } 2070 2071 static void 2072 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2073 { 2074 struct ciss_request *cr; 2075 struct ciss_command *cc; 2076 u_int32_t tag, index; 2077 2078 debug_called(3); 2079 2080 /* 2081 * Loop quickly taking requests from the adapter and moving them 2082 * to the completed queue. 2083 */ 2084 for (;;) { 2085 tag = sc->ciss_reply[sc->ciss_rqidx]; 2086 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2087 break; 2088 index = tag >> 2; 2089 debug(2, "completed command %d%s\n", index, 2090 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2091 if (index < sc->ciss_max_requests) { 2092 cr = &(sc->ciss_request[index]); 2093 cc = cr->cr_cc; 2094 cc->header.host_tag = tag; /* not updated by adapter */ 2095 ciss_enqueue_complete(cr, qh); 2096 } else { 2097 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2098 } 2099 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2100 sc->ciss_rqidx = 0; 2101 sc->ciss_cycle ^= 1; 2102 } 2103 } 2104 2105 } 2106 2107 /************************************************************************ 2108 * Take an interrupt from the adapter. 2109 */ 2110 static void 2111 ciss_intr(void *arg) 2112 { 2113 cr_qhead_t qh; 2114 struct ciss_softc *sc = (struct ciss_softc *)arg; 2115 2116 /* 2117 * The only interrupt we recognise indicates that there are 2118 * entries in the outbound post queue. 2119 */ 2120 STAILQ_INIT(&qh); 2121 ciss_done(sc, &qh); 2122 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2123 ciss_complete(sc, &qh); 2124 lockmgr(&sc->ciss_lock, LK_RELEASE); 2125 } 2126 2127 static void 2128 ciss_perf_intr(void *arg) 2129 { 2130 struct ciss_softc *sc = (struct ciss_softc *)arg; 2131 2132 /* Clear the interrupt and flush the bridges. Docs say that the flush 2133 * needs to be done twice, which doesn't seem right. 2134 */ 2135 CISS_TL_PERF_CLEAR_INT(sc); 2136 CISS_TL_PERF_FLUSH_INT(sc); 2137 2138 ciss_perf_msi_intr(sc); 2139 } 2140 2141 static void 2142 ciss_perf_msi_intr(void *arg) 2143 { 2144 cr_qhead_t qh; 2145 struct ciss_softc *sc = (struct ciss_softc *)arg; 2146 2147 STAILQ_INIT(&qh); 2148 ciss_perf_done(sc, &qh); 2149 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2150 ciss_complete(sc, &qh); 2151 lockmgr(&sc->ciss_lock, LK_RELEASE); 2152 } 2153 2154 2155 /************************************************************************ 2156 * Process completed requests. 2157 * 2158 * Requests can be completed in three fashions: 2159 * 2160 * - by invoking a callback function (cr_complete is non-null) 2161 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2162 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2163 */ 2164 static void 2165 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2166 { 2167 struct ciss_request *cr; 2168 2169 debug_called(2); 2170 2171 /* 2172 * Loop taking requests off the completed queue and performing 2173 * completion processing on them. 2174 */ 2175 for (;;) { 2176 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2177 break; 2178 ciss_unmap_request(cr); 2179 2180 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2181 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2182 cr->cr_flags &= ~CISS_REQ_BUSY; 2183 2184 /* 2185 * If the request has a callback, invoke it. 2186 */ 2187 if (cr->cr_complete != NULL) { 2188 cr->cr_complete(cr); 2189 continue; 2190 } 2191 2192 /* 2193 * If someone is sleeping on this request, wake them up. 2194 */ 2195 if (cr->cr_flags & CISS_REQ_SLEEP) { 2196 cr->cr_flags &= ~CISS_REQ_SLEEP; 2197 wakeup(cr); 2198 continue; 2199 } 2200 2201 /* 2202 * If someone is polling this request for completion, signal. 2203 */ 2204 if (cr->cr_flags & CISS_REQ_POLL) { 2205 cr->cr_flags &= ~CISS_REQ_POLL; 2206 continue; 2207 } 2208 2209 /* 2210 * Give up and throw the request back on the free queue. This 2211 * should never happen; resources will probably be lost. 2212 */ 2213 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2214 ciss_enqueue_free(cr); 2215 } 2216 } 2217 2218 /************************************************************************ 2219 * Report on the completion status of a request, and pass back SCSI 2220 * and command status values. 2221 */ 2222 static int 2223 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2224 { 2225 struct ciss_command *cc; 2226 struct ciss_error_info *ce; 2227 2228 debug_called(2); 2229 2230 cc = cr->cr_cc; 2231 ce = (struct ciss_error_info *)&(cc->sg[0]); 2232 2233 /* 2234 * We don't consider data under/overrun an error for the Report 2235 * Logical/Physical LUNs commands. 2236 */ 2237 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2238 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2239 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2240 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2241 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2242 (cc->cdb.cdb[0] == INQUIRY))) { 2243 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2244 debug(2, "ignoring irrelevant under/overrun error"); 2245 } 2246 2247 /* 2248 * Check the command's error bit, if clear, there's no status and 2249 * everything is OK. 2250 */ 2251 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2252 if (scsi_status != NULL) 2253 *scsi_status = SCSI_STATUS_OK; 2254 if (command_status != NULL) 2255 *command_status = CISS_CMD_STATUS_SUCCESS; 2256 return(0); 2257 } else { 2258 if (command_status != NULL) 2259 *command_status = ce->command_status; 2260 if (scsi_status != NULL) { 2261 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2262 *scsi_status = ce->scsi_status; 2263 } else { 2264 *scsi_status = -1; 2265 } 2266 } 2267 if (bootverbose) 2268 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2269 ce->command_status, ciss_name_command_status(ce->command_status), 2270 ce->scsi_status); 2271 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2272 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2273 ce->additional_error_info.invalid_command.offense_size, 2274 ce->additional_error_info.invalid_command.offense_offset, 2275 ce->additional_error_info.invalid_command.offense_value, 2276 func); 2277 } 2278 } 2279 #if 0 2280 ciss_print_request(cr); 2281 #endif 2282 return(1); 2283 } 2284 2285 /************************************************************************ 2286 * Issue a request and don't return until it's completed. 2287 * 2288 * Depending on adapter status, we may poll or sleep waiting for 2289 * completion. 2290 */ 2291 static int 2292 ciss_synch_request(struct ciss_request *cr, int timeout) 2293 { 2294 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2295 return(ciss_wait_request(cr, timeout)); 2296 } else { 2297 return(ciss_poll_request(cr, timeout)); 2298 } 2299 } 2300 2301 /************************************************************************ 2302 * Issue a request and poll for completion. 2303 * 2304 * Timeout in milliseconds. 2305 */ 2306 static int 2307 ciss_poll_request(struct ciss_request *cr, int timeout) 2308 { 2309 cr_qhead_t qh; 2310 struct ciss_softc *sc; 2311 int error; 2312 2313 debug_called(2); 2314 2315 STAILQ_INIT(&qh); 2316 sc = cr->cr_sc; 2317 cr->cr_flags |= CISS_REQ_POLL; 2318 if ((error = ciss_start(cr)) != 0) 2319 return(error); 2320 2321 do { 2322 if (sc->ciss_perf) 2323 ciss_perf_done(sc, &qh); 2324 else 2325 ciss_done(sc, &qh); 2326 ciss_complete(sc, &qh); 2327 if (!(cr->cr_flags & CISS_REQ_POLL)) 2328 return(0); 2329 DELAY(1000); 2330 } while (timeout-- >= 0); 2331 return(EWOULDBLOCK); 2332 } 2333 2334 /************************************************************************ 2335 * Issue a request and sleep waiting for completion. 2336 * 2337 * Timeout in milliseconds. Note that a spurious wakeup will reset 2338 * the timeout. 2339 */ 2340 static int 2341 ciss_wait_request(struct ciss_request *cr, int timeout) 2342 { 2343 int error; 2344 2345 debug_called(2); 2346 2347 cr->cr_flags |= CISS_REQ_SLEEP; 2348 if ((error = ciss_start(cr)) != 0) 2349 return(error); 2350 2351 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2352 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000); 2353 } 2354 return(error); 2355 } 2356 2357 #if 0 2358 /************************************************************************ 2359 * Abort a request. Note that a potential exists here to race the 2360 * request being completed; the caller must deal with this. 2361 */ 2362 static int 2363 ciss_abort_request(struct ciss_request *ar) 2364 { 2365 struct ciss_request *cr; 2366 struct ciss_command *cc; 2367 struct ciss_message_cdb *cmc; 2368 int error; 2369 2370 debug_called(1); 2371 2372 /* get a request */ 2373 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2374 return(error); 2375 2376 /* build the abort command */ 2377 cc = cr->cr_cc; 2378 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2379 cc->header.address.physical.target = 0; 2380 cc->header.address.physical.bus = 0; 2381 cc->cdb.cdb_length = sizeof(*cmc); 2382 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2383 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2384 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2385 cc->cdb.timeout = 30; 2386 2387 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2388 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2389 cmc->type = CISS_MESSAGE_ABORT_TASK; 2390 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2391 2392 /* 2393 * Send the request and wait for a response. If we believe we 2394 * aborted the request OK, clear the flag that indicates it's 2395 * running. 2396 */ 2397 error = ciss_synch_request(cr, 35 * 1000); 2398 if (!error) 2399 error = ciss_report_request(cr, NULL, NULL); 2400 ciss_release_request(cr); 2401 2402 return(error); 2403 } 2404 #endif 2405 2406 2407 /************************************************************************ 2408 * Fetch and initialise a request 2409 */ 2410 static int 2411 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2412 { 2413 struct ciss_request *cr; 2414 2415 debug_called(2); 2416 2417 /* 2418 * Get a request and clean it up. 2419 */ 2420 if ((cr = ciss_dequeue_free(sc)) == NULL) 2421 return(ENOMEM); 2422 2423 cr->cr_data = NULL; 2424 cr->cr_flags = 0; 2425 cr->cr_complete = NULL; 2426 cr->cr_private = NULL; 2427 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2428 2429 ciss_preen_command(cr); 2430 *crp = cr; 2431 return(0); 2432 } 2433 2434 static void 2435 ciss_preen_command(struct ciss_request *cr) 2436 { 2437 struct ciss_command *cc; 2438 u_int32_t cmdphys; 2439 2440 /* 2441 * Clean up the command structure. 2442 * 2443 * Note that we set up the error_info structure here, since the 2444 * length can be overwritten by any command. 2445 */ 2446 cc = cr->cr_cc; 2447 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2448 cc->header.sg_total = 0; 2449 cc->header.host_tag = cr->cr_tag << 2; 2450 cc->header.host_tag_zeroes = 0; 2451 cmdphys = cr->cr_ccphys; 2452 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2453 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2454 } 2455 2456 /************************************************************************ 2457 * Release a request to the free list. 2458 */ 2459 static void 2460 ciss_release_request(struct ciss_request *cr) 2461 { 2462 debug_called(2); 2463 2464 /* release the request to the free queue */ 2465 ciss_requeue_free(cr); 2466 } 2467 2468 /************************************************************************ 2469 * Allocate a request that will be used to send a BMIC command. Do some 2470 * of the common setup here to avoid duplicating it everywhere else. 2471 */ 2472 static int 2473 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2474 int opcode, void **bufp, size_t bufsize) 2475 { 2476 struct ciss_request *cr; 2477 struct ciss_command *cc; 2478 struct ciss_bmic_cdb *cbc; 2479 void *buf; 2480 int error; 2481 int dataout; 2482 2483 debug_called(2); 2484 2485 cr = NULL; 2486 buf = NULL; 2487 2488 /* 2489 * Get a request. 2490 */ 2491 if ((error = ciss_get_request(sc, &cr)) != 0) 2492 goto out; 2493 2494 /* 2495 * Allocate data storage if requested, determine the data direction. 2496 */ 2497 dataout = 0; 2498 if ((bufsize > 0) && (bufp != NULL)) { 2499 if (*bufp == NULL) { 2500 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2501 } else { 2502 buf = *bufp; 2503 dataout = 1; /* we are given a buffer, so we are writing */ 2504 } 2505 } 2506 2507 /* 2508 * Build a CISS BMIC command to get the logical drive ID. 2509 */ 2510 cr->cr_data = buf; 2511 cr->cr_length = bufsize; 2512 if (!dataout) 2513 cr->cr_flags = CISS_REQ_DATAIN; 2514 2515 cc = cr->cr_cc; 2516 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2517 cc->header.address.physical.bus = 0; 2518 cc->header.address.physical.target = 0; 2519 cc->cdb.cdb_length = sizeof(*cbc); 2520 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2521 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2522 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2523 cc->cdb.timeout = 0; 2524 2525 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2526 bzero(cbc, sizeof(*cbc)); 2527 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2528 cbc->bmic_opcode = opcode; 2529 cbc->size = htons((u_int16_t)bufsize); 2530 2531 out: 2532 if (error) { 2533 if (cr != NULL) 2534 ciss_release_request(cr); 2535 } else { 2536 *crp = cr; 2537 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2538 *bufp = buf; 2539 } 2540 return(error); 2541 } 2542 2543 /************************************************************************ 2544 * Handle a command passed in from userspace. 2545 */ 2546 static int 2547 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2548 { 2549 struct ciss_request *cr; 2550 struct ciss_command *cc; 2551 struct ciss_error_info *ce; 2552 int error = 0; 2553 2554 debug_called(1); 2555 2556 cr = NULL; 2557 2558 /* 2559 * Get a request. 2560 */ 2561 while (ciss_get_request(sc, &cr) != 0) 2562 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz); 2563 cc = cr->cr_cc; 2564 2565 /* 2566 * Allocate an in-kernel databuffer if required, copy in user data. 2567 */ 2568 lockmgr(&sc->ciss_lock, LK_RELEASE); 2569 cr->cr_length = ioc->buf_size; 2570 if (ioc->buf_size > 0) { 2571 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2572 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2573 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2574 goto out_unlocked; 2575 } 2576 } 2577 2578 /* 2579 * Build the request based on the user command. 2580 */ 2581 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2582 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2583 2584 /* XXX anything else to populate here? */ 2585 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2586 2587 /* 2588 * Run the command. 2589 */ 2590 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2591 debug(0, "request failed - %d", error); 2592 goto out; 2593 } 2594 2595 /* 2596 * Check to see if the command succeeded. 2597 */ 2598 ce = (struct ciss_error_info *)&(cc->sg[0]); 2599 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2600 bzero(ce, sizeof(*ce)); 2601 2602 /* 2603 * Copy the results back to the user. 2604 */ 2605 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2606 lockmgr(&sc->ciss_lock, LK_RELEASE); 2607 if ((ioc->buf_size > 0) && 2608 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2609 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2610 goto out_unlocked; 2611 } 2612 2613 /* done OK */ 2614 error = 0; 2615 2616 out_unlocked: 2617 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2618 2619 out: 2620 if ((cr != NULL) && (cr->cr_data != NULL)) 2621 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2622 if (cr != NULL) 2623 ciss_release_request(cr); 2624 return(error); 2625 } 2626 2627 /************************************************************************ 2628 * Map a request into bus-visible space, initialise the scatter/gather 2629 * list. 2630 */ 2631 static int 2632 ciss_map_request(struct ciss_request *cr) 2633 { 2634 struct ciss_softc *sc; 2635 int error = 0; 2636 2637 debug_called(2); 2638 2639 sc = cr->cr_sc; 2640 2641 /* check that mapping is necessary */ 2642 if (cr->cr_flags & CISS_REQ_MAPPED) 2643 return(0); 2644 2645 cr->cr_flags |= CISS_REQ_MAPPED; 2646 2647 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2648 BUS_DMASYNC_PREWRITE); 2649 2650 if (cr->cr_data != NULL) { 2651 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2652 cr->cr_data, cr->cr_length, 2653 ciss_request_map_helper, cr, 0); 2654 if (error != 0) 2655 return (error); 2656 } else { 2657 /* 2658 * Post the command to the adapter. 2659 */ 2660 cr->cr_sg_tag = CISS_SG_NONE; 2661 cr->cr_flags |= CISS_REQ_BUSY; 2662 if (sc->ciss_perf) 2663 CISS_TL_PERF_POST_CMD(sc, cr); 2664 else 2665 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2666 } 2667 2668 return(0); 2669 } 2670 2671 static void 2672 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2673 { 2674 struct ciss_command *cc; 2675 struct ciss_request *cr; 2676 struct ciss_softc *sc; 2677 int i; 2678 2679 debug_called(2); 2680 2681 cr = (struct ciss_request *)arg; 2682 sc = cr->cr_sc; 2683 cc = cr->cr_cc; 2684 2685 for (i = 0; i < nseg; i++) { 2686 cc->sg[i].address = segs[i].ds_addr; 2687 cc->sg[i].length = segs[i].ds_len; 2688 cc->sg[i].extension = 0; 2689 } 2690 /* we leave the s/g table entirely within the command */ 2691 cc->header.sg_in_list = nseg; 2692 cc->header.sg_total = nseg; 2693 2694 if (cr->cr_flags & CISS_REQ_DATAIN) 2695 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2696 if (cr->cr_flags & CISS_REQ_DATAOUT) 2697 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2698 2699 if (nseg == 0) 2700 cr->cr_sg_tag = CISS_SG_NONE; 2701 else if (nseg == 1) 2702 cr->cr_sg_tag = CISS_SG_1; 2703 else if (nseg == 2) 2704 cr->cr_sg_tag = CISS_SG_2; 2705 else if (nseg <= 4) 2706 cr->cr_sg_tag = CISS_SG_4; 2707 else if (nseg <= 8) 2708 cr->cr_sg_tag = CISS_SG_8; 2709 else if (nseg <= 16) 2710 cr->cr_sg_tag = CISS_SG_16; 2711 else if (nseg <= 32) 2712 cr->cr_sg_tag = CISS_SG_32; 2713 else 2714 cr->cr_sg_tag = CISS_SG_MAX; 2715 2716 /* 2717 * Post the command to the adapter. 2718 */ 2719 cr->cr_flags |= CISS_REQ_BUSY; 2720 if (sc->ciss_perf) 2721 CISS_TL_PERF_POST_CMD(sc, cr); 2722 else 2723 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2724 } 2725 2726 /************************************************************************ 2727 * Unmap a request from bus-visible space. 2728 */ 2729 static void 2730 ciss_unmap_request(struct ciss_request *cr) 2731 { 2732 struct ciss_softc *sc; 2733 2734 debug_called(2); 2735 2736 sc = cr->cr_sc; 2737 2738 /* check that unmapping is necessary */ 2739 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2740 return; 2741 2742 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2743 BUS_DMASYNC_POSTWRITE); 2744 2745 if (cr->cr_data == NULL) 2746 goto out; 2747 2748 if (cr->cr_flags & CISS_REQ_DATAIN) 2749 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2750 if (cr->cr_flags & CISS_REQ_DATAOUT) 2751 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2752 2753 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2754 out: 2755 cr->cr_flags &= ~CISS_REQ_MAPPED; 2756 } 2757 2758 /************************************************************************ 2759 * Attach the driver to CAM. 2760 * 2761 * We put all the logical drives on a single SCSI bus. 2762 */ 2763 static int 2764 ciss_cam_init(struct ciss_softc *sc) 2765 { 2766 int i, maxbus; 2767 2768 debug_called(1); 2769 2770 /* 2771 * Allocate a devq. We can reuse this for the masked physical 2772 * devices if we decide to export these as well. 2773 */ 2774 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2775 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2776 return(ENOMEM); 2777 } 2778 2779 /* 2780 * Create a SIM. 2781 * 2782 * This naturally wastes a bit of memory. The alternative is to allocate 2783 * and register each bus as it is found, and then track them on a linked 2784 * list. Unfortunately, the driver has a few places where it needs to 2785 * look up the SIM based solely on bus number, and it's unclear whether 2786 * a list traversal would work for these situations. 2787 */ 2788 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2789 CISS_PHYSICAL_BASE); 2790 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2791 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2792 2793 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2794 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2795 "ciss", sc, 2796 device_get_unit(sc->ciss_dev), 2797 &sc->ciss_lock, 2798 2, 2799 sc->ciss_max_requests - 2, 2800 sc->ciss_cam_devq)) == NULL) { 2801 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2802 return(ENOMEM); 2803 } 2804 2805 /* 2806 * Register bus with this SIM. 2807 */ 2808 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2809 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2810 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2811 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2812 lockmgr(&sc->ciss_lock, LK_RELEASE); 2813 return (ENXIO); 2814 } 2815 } 2816 lockmgr(&sc->ciss_lock, LK_RELEASE); 2817 } 2818 2819 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2820 CISS_PHYSICAL_BASE; i++) { 2821 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2822 "ciss", sc, 2823 device_get_unit(sc->ciss_dev), 2824 &sc->ciss_lock, 1, 2825 sc->ciss_max_requests - 2, 2826 sc->ciss_cam_devq)) == NULL) { 2827 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2828 return (ENOMEM); 2829 } 2830 2831 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2832 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2833 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2834 lockmgr(&sc->ciss_lock, LK_RELEASE); 2835 return (ENXIO); 2836 } 2837 lockmgr(&sc->ciss_lock, LK_RELEASE); 2838 } 2839 2840 /* 2841 * Initiate a rescan of the bus. 2842 */ 2843 ciss_cam_rescan_all(sc); 2844 2845 return(0); 2846 } 2847 2848 /************************************************************************ 2849 * Initiate a rescan of the 'logical devices' SIM 2850 */ 2851 static void 2852 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2853 { 2854 union ccb *ccb; 2855 2856 debug_called(1); 2857 2858 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2859 2860 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2861 cam_sim_path(sc->ciss_cam_sim[bus]), 2862 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2863 ciss_printf(sc, "rescan failed (can't create path)\n"); 2864 kfree(ccb, M_TEMP); 2865 return; 2866 } 2867 2868 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 2869 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2870 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2871 ccb->crcn.flags = CAM_FLAG_NONE; 2872 xpt_action(ccb); 2873 2874 /* scan is now in progress */ 2875 } 2876 2877 static void 2878 ciss_cam_rescan_all(struct ciss_softc *sc) 2879 { 2880 int i; 2881 2882 /* Rescan the logical buses */ 2883 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2884 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2885 /* Rescan the physical buses */ 2886 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2887 CISS_PHYSICAL_BASE; i++) 2888 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2889 } 2890 2891 static void 2892 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2893 { 2894 xpt_free_path(ccb->ccb_h.path); 2895 kfree(ccb, M_TEMP); 2896 } 2897 2898 /************************************************************************ 2899 * Handle requests coming from CAM 2900 */ 2901 static void 2902 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2903 { 2904 struct ciss_softc *sc; 2905 struct ccb_scsiio *csio; 2906 int bus, target; 2907 int physical; 2908 2909 sc = cam_sim_softc(sim); 2910 bus = cam_sim_bus(sim); 2911 csio = (struct ccb_scsiio *)&ccb->csio; 2912 target = csio->ccb_h.target_id; 2913 physical = CISS_IS_PHYSICAL(bus); 2914 2915 switch (ccb->ccb_h.func_code) { 2916 2917 /* perform SCSI I/O */ 2918 case XPT_SCSI_IO: 2919 if (!ciss_cam_action_io(sim, csio)) 2920 return; 2921 break; 2922 2923 /* perform geometry calculations */ 2924 case XPT_CALC_GEOMETRY: 2925 { 2926 struct ccb_calc_geometry *ccg = &ccb->ccg; 2927 struct ciss_ldrive *ld; 2928 2929 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2930 2931 ld = NULL; 2932 if (!physical) 2933 ld = &sc->ciss_logical[bus][target]; 2934 2935 /* 2936 * Use the cached geometry settings unless the fault tolerance 2937 * is invalid. 2938 */ 2939 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2940 u_int32_t secs_per_cylinder; 2941 2942 ccg->heads = 255; 2943 ccg->secs_per_track = 32; 2944 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2945 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2946 } else { 2947 ccg->heads = ld->cl_geometry.heads; 2948 ccg->secs_per_track = ld->cl_geometry.sectors; 2949 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2950 } 2951 ccb->ccb_h.status = CAM_REQ_CMP; 2952 break; 2953 } 2954 2955 /* handle path attribute inquiry */ 2956 case XPT_PATH_INQ: 2957 { 2958 struct ccb_pathinq *cpi = &ccb->cpi; 2959 2960 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2961 2962 cpi->version_num = 1; 2963 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2964 cpi->target_sprt = 0; 2965 cpi->hba_misc = 0; 2966 cpi->max_target = CISS_MAX_LOGICAL; 2967 cpi->max_lun = 0; /* 'logical drive' channel only */ 2968 cpi->initiator_id = CISS_MAX_LOGICAL; 2969 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2970 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2971 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2972 cpi->unit_number = cam_sim_unit(sim); 2973 cpi->bus_id = cam_sim_bus(sim); 2974 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2975 cpi->transport = XPORT_SPI; 2976 cpi->transport_version = 2; 2977 cpi->protocol = PROTO_SCSI; 2978 cpi->protocol_version = SCSI_REV_2; 2979 #if 0 /* XXX swildner */ 2980 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2981 #endif 2982 ccb->ccb_h.status = CAM_REQ_CMP; 2983 break; 2984 } 2985 2986 case XPT_GET_TRAN_SETTINGS: 2987 { 2988 struct ccb_trans_settings *cts = &ccb->cts; 2989 #ifdef CISS_DEBUG 2990 int bus, target; 2991 #endif 2992 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2993 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2994 2995 #ifdef CISS_DEBUG 2996 bus = cam_sim_bus(sim); 2997 target = cts->ccb_h.target_id; 2998 #endif 2999 3000 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3001 /* disconnect always OK */ 3002 cts->protocol = PROTO_SCSI; 3003 cts->protocol_version = SCSI_REV_2; 3004 cts->transport = XPORT_SPI; 3005 cts->transport_version = 2; 3006 3007 spi->valid = CTS_SPI_VALID_DISC; 3008 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3009 3010 scsi->valid = CTS_SCSI_VALID_TQ; 3011 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3012 3013 cts->ccb_h.status = CAM_REQ_CMP; 3014 break; 3015 } 3016 3017 default: /* we can't do this */ 3018 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3019 ccb->ccb_h.status = CAM_REQ_INVALID; 3020 break; 3021 } 3022 3023 xpt_done(ccb); 3024 } 3025 3026 /************************************************************************ 3027 * Handle a CAM SCSI I/O request. 3028 */ 3029 static int 3030 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3031 { 3032 struct ciss_softc *sc; 3033 int bus, target; 3034 struct ciss_request *cr; 3035 struct ciss_command *cc; 3036 int error; 3037 3038 sc = cam_sim_softc(sim); 3039 bus = cam_sim_bus(sim); 3040 target = csio->ccb_h.target_id; 3041 3042 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3043 3044 /* check that the CDB pointer is not to a physical address */ 3045 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3046 debug(3, " CDB pointer is to physical address"); 3047 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3048 } 3049 3050 /* if there is data transfer, it must be to/from a virtual address */ 3051 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3052 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3053 debug(3, " data pointer is to physical address"); 3054 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3055 } 3056 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3057 debug(3, " data has premature s/g setup"); 3058 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3059 } 3060 } 3061 3062 /* abandon aborted ccbs or those that have failed validation */ 3063 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3064 debug(3, "abandoning CCB due to abort/validation failure"); 3065 return(EINVAL); 3066 } 3067 3068 /* handle emulation of some SCSI commands ourself */ 3069 if (ciss_cam_emulate(sc, csio)) 3070 return(0); 3071 3072 /* 3073 * Get a request to manage this command. If we can't, return the 3074 * ccb, freeze the queue and flag so that we unfreeze it when a 3075 * request completes. 3076 */ 3077 if ((error = ciss_get_request(sc, &cr)) != 0) { 3078 xpt_freeze_simq(sim, 1); 3079 sc->ciss_flags |= CISS_FLAG_BUSY; 3080 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3081 return(error); 3082 } 3083 3084 /* 3085 * Build the command. 3086 */ 3087 cc = cr->cr_cc; 3088 cr->cr_data = csio->data_ptr; 3089 cr->cr_length = csio->dxfer_len; 3090 cr->cr_complete = ciss_cam_complete; 3091 cr->cr_private = csio; 3092 3093 /* 3094 * Target the right logical volume. 3095 */ 3096 if (CISS_IS_PHYSICAL(bus)) 3097 cc->header.address = 3098 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3099 else 3100 cc->header.address = 3101 sc->ciss_logical[bus][target].cl_address; 3102 cc->cdb.cdb_length = csio->cdb_len; 3103 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3104 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3105 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3106 cr->cr_flags = CISS_REQ_DATAOUT; 3107 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3108 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3109 cr->cr_flags = CISS_REQ_DATAIN; 3110 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3111 } else { 3112 cr->cr_flags = 0; 3113 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3114 } 3115 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3116 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3117 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3118 } else { 3119 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3120 } 3121 3122 /* 3123 * Submit the request to the adapter. 3124 * 3125 * Note that this may fail if we're unable to map the request (and 3126 * if we ever learn a transport layer other than simple, may fail 3127 * if the adapter rejects the command). 3128 */ 3129 if ((error = ciss_start(cr)) != 0) { 3130 xpt_freeze_simq(sim, 1); 3131 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3132 if (error == EINPROGRESS) { 3133 error = 0; 3134 } else { 3135 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3136 ciss_release_request(cr); 3137 } 3138 return(error); 3139 } 3140 3141 return(0); 3142 } 3143 3144 /************************************************************************ 3145 * Emulate SCSI commands the adapter doesn't handle as we might like. 3146 */ 3147 static int 3148 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3149 { 3150 int bus, target; 3151 3152 target = csio->ccb_h.target_id; 3153 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3154 3155 if (CISS_IS_PHYSICAL(bus)) { 3156 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3157 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3158 xpt_done((union ccb *)csio); 3159 return(1); 3160 } else 3161 return(0); 3162 } 3163 3164 /* 3165 * Handle requests for volumes that don't exist or are not online. 3166 * A selection timeout is slightly better than an illegal request. 3167 * Other errors might be better. 3168 */ 3169 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3170 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3171 xpt_done((union ccb *)csio); 3172 return(1); 3173 } 3174 3175 /* if we have to fake Synchronise Cache */ 3176 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3177 /* 3178 * If this is a Synchronise Cache command, typically issued when 3179 * a device is closed, flush the adapter and complete now. 3180 */ 3181 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3182 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3183 ciss_flush_adapter(sc); 3184 csio->ccb_h.status |= CAM_REQ_CMP; 3185 xpt_done((union ccb *)csio); 3186 return(1); 3187 } 3188 } 3189 3190 return(0); 3191 } 3192 3193 /************************************************************************ 3194 * Check for possibly-completed commands. 3195 */ 3196 static void 3197 ciss_cam_poll(struct cam_sim *sim) 3198 { 3199 cr_qhead_t qh; 3200 struct ciss_softc *sc = cam_sim_softc(sim); 3201 3202 debug_called(2); 3203 3204 STAILQ_INIT(&qh); 3205 if (sc->ciss_perf) 3206 ciss_perf_done(sc, &qh); 3207 else 3208 ciss_done(sc, &qh); 3209 ciss_complete(sc, &qh); 3210 } 3211 3212 /************************************************************************ 3213 * Handle completion of a command - pass results back through the CCB 3214 */ 3215 static void 3216 ciss_cam_complete(struct ciss_request *cr) 3217 { 3218 struct ciss_softc *sc; 3219 struct ciss_command *cc; 3220 struct ciss_error_info *ce; 3221 struct ccb_scsiio *csio; 3222 int scsi_status; 3223 int command_status; 3224 3225 debug_called(2); 3226 3227 sc = cr->cr_sc; 3228 cc = cr->cr_cc; 3229 ce = (struct ciss_error_info *)&(cc->sg[0]); 3230 csio = (struct ccb_scsiio *)cr->cr_private; 3231 3232 /* 3233 * Extract status values from request. 3234 */ 3235 ciss_report_request(cr, &command_status, &scsi_status); 3236 csio->scsi_status = scsi_status; 3237 3238 /* 3239 * Handle specific SCSI status values. 3240 */ 3241 switch(scsi_status) { 3242 /* no status due to adapter error */ 3243 case -1: 3244 debug(0, "adapter error"); 3245 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3246 break; 3247 3248 /* no status due to command completed OK */ 3249 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3250 debug(2, "SCSI_STATUS_OK"); 3251 csio->ccb_h.status |= CAM_REQ_CMP; 3252 break; 3253 3254 /* check condition, sense data included */ 3255 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3256 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3257 ce->sense_length, ce->residual_count); 3258 bzero(&csio->sense_data, SSD_FULL_SIZE); 3259 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3260 if (csio->sense_len > ce->sense_length) 3261 csio->sense_resid = csio->sense_len - ce->sense_length; 3262 else 3263 csio->sense_resid = 0; 3264 csio->resid = ce->residual_count; 3265 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3266 #ifdef CISS_DEBUG 3267 { 3268 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3269 debug(0, "sense key %x", sns->flags & SSD_KEY); 3270 } 3271 #endif 3272 break; 3273 3274 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3275 debug(0, "SCSI_STATUS_BUSY"); 3276 csio->ccb_h.status |= CAM_SCSI_BUSY; 3277 break; 3278 3279 default: 3280 debug(0, "unknown status 0x%x", csio->scsi_status); 3281 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3282 break; 3283 } 3284 3285 /* handle post-command fixup */ 3286 ciss_cam_complete_fixup(sc, csio); 3287 3288 ciss_release_request(cr); 3289 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3290 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3291 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3292 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3293 else 3294 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3295 } 3296 xpt_done((union ccb *)csio); 3297 } 3298 3299 /******************************************************************************** 3300 * Fix up the result of some commands here. 3301 */ 3302 static void 3303 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3304 { 3305 struct scsi_inquiry_data *inq; 3306 struct ciss_ldrive *cl; 3307 uint8_t *cdb; 3308 int bus, target; 3309 3310 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3311 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3312 if (cdb[0] == INQUIRY && 3313 (cdb[1] & SI_EVPD) == 0 && 3314 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3315 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3316 3317 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3318 target = csio->ccb_h.target_id; 3319 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3320 3321 /* 3322 * Don't let hard drives be seen by the DA driver. They will still be 3323 * attached by the PASS driver. 3324 */ 3325 if (CISS_IS_PHYSICAL(bus)) { 3326 if (SID_TYPE(inq) == T_DIRECT) 3327 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3328 return; 3329 } 3330 3331 cl = &sc->ciss_logical[bus][target]; 3332 3333 padstr(inq->vendor, "COMPAQ", 8); 3334 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3335 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3336 } 3337 } 3338 3339 3340 /******************************************************************************** 3341 * Find a peripheral attached at (target) 3342 */ 3343 static struct cam_periph * 3344 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3345 { 3346 struct cam_periph *periph; 3347 struct cam_path *path; 3348 int status; 3349 3350 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3351 target, 0); 3352 if (status == CAM_REQ_CMP) { 3353 periph = cam_periph_find(path, NULL); 3354 xpt_free_path(path); 3355 } else { 3356 periph = NULL; 3357 } 3358 return(periph); 3359 } 3360 3361 /******************************************************************************** 3362 * Name the device at (target) 3363 * 3364 * XXX is this strictly correct? 3365 */ 3366 static int 3367 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3368 { 3369 struct cam_periph *periph; 3370 3371 if (CISS_IS_PHYSICAL(bus)) 3372 return (0); 3373 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3374 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3375 periph->periph_name, periph->unit_number); 3376 return(0); 3377 } 3378 sc->ciss_logical[bus][target].cl_name[0] = 0; 3379 return(ENOENT); 3380 } 3381 3382 /************************************************************************ 3383 * Periodic status monitoring. 3384 */ 3385 static void 3386 ciss_periodic(void *arg) 3387 { 3388 struct ciss_softc *sc = (struct ciss_softc *)arg; 3389 struct ciss_request *cr = NULL; 3390 struct ciss_command *cc = NULL; 3391 int error = 0; 3392 3393 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 3394 debug_called(1); 3395 3396 /* 3397 * Check the adapter heartbeat. 3398 */ 3399 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3400 sc->ciss_heart_attack++; 3401 debug(0, "adapter heart attack in progress 0x%x/%d", 3402 sc->ciss_heartbeat, sc->ciss_heart_attack); 3403 if (sc->ciss_heart_attack == 3) { 3404 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3405 ciss_disable_adapter(sc); 3406 lockmgr(&sc->ciss_lock, LK_RELEASE); 3407 return; 3408 } 3409 } else { 3410 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3411 sc->ciss_heart_attack = 0; 3412 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3413 } 3414 3415 /* 3416 * Send the NOP message and wait for a response. 3417 */ 3418 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3419 cc = cr->cr_cc; 3420 cr->cr_complete = ciss_nop_complete; 3421 cc->cdb.cdb_length = 1; 3422 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3423 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3424 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3425 cc->cdb.timeout = 0; 3426 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3427 3428 if ((error = ciss_start(cr)) != 0) { 3429 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3430 } 3431 } 3432 3433 /* 3434 * If the notify event request has died for some reason, or has 3435 * not started yet, restart it. 3436 */ 3437 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3438 debug(0, "(re)starting Event Notify chain"); 3439 ciss_notify_event(sc); 3440 } 3441 lockmgr(&sc->ciss_lock, LK_RELEASE); 3442 3443 /* 3444 * Reschedule. 3445 */ 3446 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3447 } 3448 3449 static void 3450 ciss_nop_complete(struct ciss_request *cr) 3451 { 3452 struct ciss_softc *sc; 3453 static int first_time = 1; 3454 3455 sc = cr->cr_sc; 3456 if (ciss_report_request(cr, NULL, NULL) != 0) { 3457 if (first_time == 1) { 3458 first_time = 0; 3459 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3460 } 3461 } 3462 3463 ciss_release_request(cr); 3464 } 3465 3466 /************************************************************************ 3467 * Disable the adapter. 3468 * 3469 * The all requests in completed queue is failed with hardware error. 3470 * This will cause failover in a multipath configuration. 3471 */ 3472 static void 3473 ciss_disable_adapter(struct ciss_softc *sc) 3474 { 3475 cr_qhead_t qh; 3476 struct ciss_request *cr; 3477 struct ciss_command *cc; 3478 struct ciss_error_info *ce; 3479 int i; 3480 3481 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3482 pci_disable_busmaster(sc->ciss_dev); 3483 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3484 3485 for (i = 1; i < sc->ciss_max_requests; i++) { 3486 cr = &sc->ciss_request[i]; 3487 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3488 continue; 3489 3490 cc = cr->cr_cc; 3491 ce = (struct ciss_error_info *)&(cc->sg[0]); 3492 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3493 ciss_enqueue_complete(cr, &qh); 3494 } 3495 3496 for (;;) { 3497 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3498 break; 3499 3500 /* 3501 * If the request has a callback, invoke it. 3502 */ 3503 if (cr->cr_complete != NULL) { 3504 cr->cr_complete(cr); 3505 continue; 3506 } 3507 3508 /* 3509 * If someone is sleeping on this request, wake them up. 3510 */ 3511 if (cr->cr_flags & CISS_REQ_SLEEP) { 3512 cr->cr_flags &= ~CISS_REQ_SLEEP; 3513 wakeup(cr); 3514 continue; 3515 } 3516 } 3517 } 3518 3519 /************************************************************************ 3520 * Request a notification response from the adapter. 3521 * 3522 * If (cr) is NULL, this is the first request of the adapter, so 3523 * reset the adapter's message pointer and start with the oldest 3524 * message available. 3525 */ 3526 static void 3527 ciss_notify_event(struct ciss_softc *sc) 3528 { 3529 struct ciss_request *cr; 3530 struct ciss_command *cc; 3531 struct ciss_notify_cdb *cnc; 3532 int error; 3533 3534 debug_called(1); 3535 3536 cr = sc->ciss_periodic_notify; 3537 3538 /* get a request if we don't already have one */ 3539 if (cr == NULL) { 3540 if ((error = ciss_get_request(sc, &cr)) != 0) { 3541 debug(0, "can't get notify event request"); 3542 goto out; 3543 } 3544 sc->ciss_periodic_notify = cr; 3545 cr->cr_complete = ciss_notify_complete; 3546 debug(1, "acquired request %d", cr->cr_tag); 3547 } 3548 3549 /* 3550 * Get a databuffer if we don't already have one, note that the 3551 * adapter command wants a larger buffer than the actual 3552 * structure. 3553 */ 3554 if (cr->cr_data == NULL) { 3555 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3556 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3557 } 3558 3559 /* re-setup the request's command (since we never release it) XXX overkill*/ 3560 ciss_preen_command(cr); 3561 3562 /* (re)build the notify event command */ 3563 cc = cr->cr_cc; 3564 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3565 cc->header.address.physical.bus = 0; 3566 cc->header.address.physical.target = 0; 3567 3568 cc->cdb.cdb_length = sizeof(*cnc); 3569 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3570 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3571 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3572 cc->cdb.timeout = 0; /* no timeout, we hope */ 3573 3574 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3575 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3576 cnc->opcode = CISS_OPCODE_READ; 3577 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3578 cnc->timeout = 0; /* no timeout, we hope */ 3579 cnc->synchronous = 0; 3580 cnc->ordered = 0; 3581 cnc->seek_to_oldest = 0; 3582 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3583 cnc->new_only = 1; 3584 else 3585 cnc->new_only = 0; 3586 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3587 3588 /* submit the request */ 3589 error = ciss_start(cr); 3590 3591 out: 3592 if (error) { 3593 if (cr != NULL) { 3594 if (cr->cr_data != NULL) 3595 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3596 ciss_release_request(cr); 3597 } 3598 sc->ciss_periodic_notify = NULL; 3599 debug(0, "can't submit notify event request"); 3600 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3601 } else { 3602 debug(1, "notify event submitted"); 3603 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3604 } 3605 } 3606 3607 static void 3608 ciss_notify_complete(struct ciss_request *cr) 3609 { 3610 struct ciss_notify *cn; 3611 struct ciss_softc *sc; 3612 int scsi_status; 3613 int command_status; 3614 debug_called(1); 3615 3616 cn = (struct ciss_notify *)cr->cr_data; 3617 sc = cr->cr_sc; 3618 3619 /* 3620 * Report request results, decode status. 3621 */ 3622 ciss_report_request(cr, &command_status, &scsi_status); 3623 3624 /* 3625 * Abort the chain on a fatal error. 3626 * 3627 * XXX which of these are actually errors? 3628 */ 3629 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3630 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3631 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3632 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3633 ciss_name_command_status(command_status)); 3634 ciss_release_request(cr); 3635 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3636 return; 3637 } 3638 3639 /* 3640 * If the adapter gave us a text message, print it. 3641 */ 3642 if (cn->message[0] != 0) 3643 ciss_printf(sc, "*** %.80s\n", cn->message); 3644 3645 debug(0, "notify event class %d subclass %d detail %d", 3646 cn->class, cn->subclass, cn->detail); 3647 3648 /* 3649 * If the response indicates that the notifier has been aborted, 3650 * release the notifier command. 3651 */ 3652 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3653 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3654 (cn->detail == 1)) { 3655 debug(0, "notifier exiting"); 3656 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3657 ciss_release_request(cr); 3658 sc->ciss_periodic_notify = NULL; 3659 wakeup(&sc->ciss_periodic_notify); 3660 } else { 3661 /* Handle notify events in a kernel thread */ 3662 ciss_enqueue_notify(cr); 3663 sc->ciss_periodic_notify = NULL; 3664 wakeup(&sc->ciss_periodic_notify); 3665 wakeup(&sc->ciss_notify); 3666 } 3667 /* 3668 * Send a new notify event command, if we're not aborting. 3669 */ 3670 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3671 ciss_notify_event(sc); 3672 } 3673 } 3674 3675 /************************************************************************ 3676 * Abort the Notify Event chain. 3677 * 3678 * Note that we can't just abort the command in progress; we have to 3679 * explicitly issue an Abort Notify Event command in order for the 3680 * adapter to clean up correctly. 3681 * 3682 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3683 * the chain will not restart itself. 3684 */ 3685 static int 3686 ciss_notify_abort(struct ciss_softc *sc) 3687 { 3688 struct ciss_request *cr; 3689 struct ciss_command *cc; 3690 struct ciss_notify_cdb *cnc; 3691 int error, command_status, scsi_status; 3692 3693 debug_called(1); 3694 3695 cr = NULL; 3696 error = 0; 3697 3698 /* verify that there's an outstanding command */ 3699 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3700 goto out; 3701 3702 /* get a command to issue the abort with */ 3703 if ((error = ciss_get_request(sc, &cr))) 3704 goto out; 3705 3706 /* get a buffer for the result */ 3707 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3708 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3709 3710 /* build the CDB */ 3711 cc = cr->cr_cc; 3712 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3713 cc->header.address.physical.bus = 0; 3714 cc->header.address.physical.target = 0; 3715 cc->cdb.cdb_length = sizeof(*cnc); 3716 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3717 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3718 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3719 cc->cdb.timeout = 0; /* no timeout, we hope */ 3720 3721 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3722 bzero(cnc, sizeof(*cnc)); 3723 cnc->opcode = CISS_OPCODE_WRITE; 3724 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3725 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3726 3727 ciss_print_request(cr); 3728 3729 /* 3730 * Submit the request and wait for it to complete. 3731 */ 3732 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3733 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3734 goto out; 3735 } 3736 3737 /* 3738 * Check response. 3739 */ 3740 ciss_report_request(cr, &command_status, &scsi_status); 3741 switch(command_status) { 3742 case CISS_CMD_STATUS_SUCCESS: 3743 break; 3744 case CISS_CMD_STATUS_INVALID_COMMAND: 3745 /* 3746 * Some older adapters don't support the CISS version of this 3747 * command. Fall back to using the BMIC version. 3748 */ 3749 error = ciss_notify_abort_bmic(sc); 3750 if (error != 0) 3751 goto out; 3752 break; 3753 3754 case CISS_CMD_STATUS_TARGET_STATUS: 3755 /* 3756 * This can happen if the adapter thinks there wasn't an outstanding 3757 * Notify Event command but we did. We clean up here. 3758 */ 3759 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3760 if (sc->ciss_periodic_notify != NULL) 3761 ciss_release_request(sc->ciss_periodic_notify); 3762 error = 0; 3763 goto out; 3764 } 3765 /* FALLTHROUGH */ 3766 3767 default: 3768 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3769 ciss_name_command_status(command_status)); 3770 error = EIO; 3771 goto out; 3772 } 3773 3774 /* 3775 * Sleep waiting for the notifier command to complete. Note 3776 * that if it doesn't, we may end up in a bad situation, since 3777 * the adapter may deliver it later. Also note that the adapter 3778 * requires the Notify Event command to be cancelled in order to 3779 * maintain internal bookkeeping. 3780 */ 3781 while (sc->ciss_periodic_notify != NULL) { 3782 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5); 3783 if (error == EWOULDBLOCK) { 3784 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3785 break; 3786 } 3787 } 3788 3789 out: 3790 /* release the cancel request */ 3791 if (cr != NULL) { 3792 if (cr->cr_data != NULL) 3793 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3794 ciss_release_request(cr); 3795 } 3796 if (error == 0) 3797 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3798 return(error); 3799 } 3800 3801 /************************************************************************ 3802 * Abort the Notify Event chain using a BMIC command. 3803 */ 3804 static int 3805 ciss_notify_abort_bmic(struct ciss_softc *sc) 3806 { 3807 struct ciss_request *cr; 3808 int error, command_status; 3809 3810 debug_called(1); 3811 3812 cr = NULL; 3813 error = 0; 3814 3815 /* verify that there's an outstanding command */ 3816 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3817 goto out; 3818 3819 /* 3820 * Build a BMIC command to cancel the Notify on Event command. 3821 * 3822 * Note that we are sending a CISS opcode here. Odd. 3823 */ 3824 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3825 NULL, 0)) != 0) 3826 goto out; 3827 3828 /* 3829 * Submit the request and wait for it to complete. 3830 */ 3831 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3832 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3833 goto out; 3834 } 3835 3836 /* 3837 * Check response. 3838 */ 3839 ciss_report_request(cr, &command_status, NULL); 3840 switch(command_status) { 3841 case CISS_CMD_STATUS_SUCCESS: 3842 break; 3843 default: 3844 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3845 ciss_name_command_status(command_status)); 3846 error = EIO; 3847 goto out; 3848 } 3849 3850 out: 3851 if (cr != NULL) 3852 ciss_release_request(cr); 3853 return(error); 3854 } 3855 3856 /************************************************************************ 3857 * Handle rescanning all the logical volumes when a notify event 3858 * causes the drives to come online or offline. 3859 */ 3860 static void 3861 ciss_notify_rescan_logical(struct ciss_softc *sc) 3862 { 3863 struct ciss_lun_report *cll; 3864 struct ciss_ldrive *ld; 3865 int i, j, ndrives; 3866 3867 /* 3868 * We must rescan all logical volumes to get the right logical 3869 * drive address. 3870 */ 3871 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3872 CISS_MAX_LOGICAL); 3873 if (cll == NULL) 3874 return; 3875 3876 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3877 3878 /* 3879 * Delete any of the drives which were destroyed by the 3880 * firmware. 3881 */ 3882 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3883 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3884 ld = &sc->ciss_logical[i][j]; 3885 3886 if (ld->cl_update == 0) 3887 continue; 3888 3889 if (ld->cl_status != CISS_LD_ONLINE) { 3890 ciss_cam_rescan_target(sc, i, j); 3891 ld->cl_update = 0; 3892 if (ld->cl_ldrive) 3893 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3894 if (ld->cl_lstatus) 3895 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3896 3897 ld->cl_ldrive = NULL; 3898 ld->cl_lstatus = NULL; 3899 } 3900 } 3901 } 3902 3903 /* 3904 * Scan for new drives. 3905 */ 3906 for (i = 0; i < ndrives; i++) { 3907 int bus, target; 3908 3909 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3910 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3911 ld = &sc->ciss_logical[bus][target]; 3912 3913 if (ld->cl_update == 0) 3914 continue; 3915 3916 ld->cl_update = 0; 3917 ld->cl_address = cll->lun[i]; 3918 ld->cl_controller = &sc->ciss_controllers[bus]; 3919 if (ciss_identify_logical(sc, ld) == 0) { 3920 ciss_cam_rescan_target(sc, bus, target); 3921 } 3922 } 3923 kfree(cll, CISS_MALLOC_CLASS); 3924 } 3925 3926 /************************************************************************ 3927 * Handle a notify event relating to the status of a logical drive. 3928 * 3929 * XXX need to be able to defer some of these to properly handle 3930 * calling the "ID Physical drive" command, unless the 'extended' 3931 * drive IDs are always in BIG_MAP format. 3932 */ 3933 static void 3934 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3935 { 3936 struct ciss_ldrive *ld; 3937 int ostatus, bus, target; 3938 3939 debug_called(2); 3940 3941 bus = cn->device.physical.bus; 3942 target = cn->data.logical_status.logical_drive; 3943 ld = &sc->ciss_logical[bus][target]; 3944 3945 switch (cn->subclass) { 3946 case CISS_NOTIFY_LOGICAL_STATUS: 3947 switch (cn->detail) { 3948 case 0: 3949 ciss_name_device(sc, bus, target); 3950 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3951 cn->data.logical_status.logical_drive, ld->cl_name, 3952 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3953 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3954 cn->data.logical_status.spare_state, 3955 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3956 3957 /* 3958 * Update our idea of the drive's status. 3959 */ 3960 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3961 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3962 if (ld->cl_lstatus != NULL) 3963 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3964 3965 /* 3966 * Have CAM rescan the drive if its status has changed. 3967 */ 3968 if (ostatus != ld->cl_status) { 3969 ld->cl_update = 1; 3970 ciss_notify_rescan_logical(sc); 3971 } 3972 3973 break; 3974 3975 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3976 ciss_name_device(sc, bus, target); 3977 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3978 cn->data.logical_status.logical_drive, ld->cl_name); 3979 ciss_accept_media(sc, ld); 3980 3981 ld->cl_update = 1; 3982 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3983 ciss_notify_rescan_logical(sc); 3984 break; 3985 3986 case 2: 3987 case 3: 3988 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3989 cn->data.rebuild_aborted.logical_drive, 3990 ld->cl_name, 3991 (cn->detail == 2) ? "read" : "write"); 3992 break; 3993 } 3994 break; 3995 3996 case CISS_NOTIFY_LOGICAL_ERROR: 3997 if (cn->detail == 0) { 3998 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3999 cn->data.io_error.logical_drive, 4000 ld->cl_name, 4001 cn->data.io_error.failure_bus, 4002 cn->data.io_error.failure_drive); 4003 /* XXX should we take the drive down at this point, or will we be told? */ 4004 } 4005 break; 4006 4007 case CISS_NOTIFY_LOGICAL_SURFACE: 4008 if (cn->detail == 0) 4009 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4010 cn->data.consistency_completed.logical_drive, 4011 ld->cl_name); 4012 break; 4013 } 4014 } 4015 4016 /************************************************************************ 4017 * Handle a notify event relating to the status of a physical drive. 4018 */ 4019 static void 4020 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4021 { 4022 } 4023 4024 /************************************************************************ 4025 * Handle a notify event relating to the status of a physical drive. 4026 */ 4027 static void 4028 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4029 { 4030 struct ciss_lun_report *cll = NULL; 4031 int bus, target; 4032 4033 switch (cn->subclass) { 4034 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4035 case CISS_NOTIFY_HOTPLUG_NONDISK: 4036 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4037 target = 4038 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4039 4040 if (cn->detail == 0) { 4041 /* 4042 * Mark the device offline so that it'll start producing selection 4043 * timeouts to the upper layer. 4044 */ 4045 if ((bus >= 0) && (target >= 0)) 4046 sc->ciss_physical[bus][target].cp_online = 0; 4047 } else { 4048 /* 4049 * Rescan the physical lun list for new items 4050 */ 4051 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4052 CISS_MAX_PHYSICAL); 4053 if (cll == NULL) { 4054 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4055 break; 4056 } 4057 ciss_filter_physical(sc, cll); 4058 } 4059 break; 4060 4061 default: 4062 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4063 return; 4064 } 4065 4066 if (cll != NULL) 4067 kfree(cll, CISS_MALLOC_CLASS); 4068 } 4069 4070 /************************************************************************ 4071 * Handle deferred processing of notify events. Notify events may need 4072 * sleep which is unsafe during an interrupt. 4073 */ 4074 static void 4075 ciss_notify_thread(void *arg) 4076 { 4077 struct ciss_softc *sc; 4078 struct ciss_request *cr; 4079 struct ciss_notify *cn; 4080 4081 sc = (struct ciss_softc *)arg; 4082 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4083 4084 for (;;) { 4085 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4086 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4087 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0); 4088 } 4089 4090 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4091 break; 4092 4093 cr = ciss_dequeue_notify(sc); 4094 4095 if (cr == NULL) 4096 panic("cr null"); 4097 cn = (struct ciss_notify *)cr->cr_data; 4098 4099 switch (cn->class) { 4100 case CISS_NOTIFY_HOTPLUG: 4101 ciss_notify_hotplug(sc, cn); 4102 break; 4103 case CISS_NOTIFY_LOGICAL: 4104 ciss_notify_logical(sc, cn); 4105 break; 4106 case CISS_NOTIFY_PHYSICAL: 4107 ciss_notify_physical(sc, cn); 4108 break; 4109 } 4110 4111 ciss_release_request(cr); 4112 4113 } 4114 sc->ciss_notify_thread = NULL; 4115 wakeup(&sc->ciss_notify_thread); 4116 4117 lockmgr(&sc->ciss_lock, LK_RELEASE); 4118 kthread_exit(); 4119 } 4120 4121 /************************************************************************ 4122 * Start the notification kernel thread. 4123 */ 4124 static void 4125 ciss_spawn_notify_thread(struct ciss_softc *sc) 4126 { 4127 4128 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 4129 &sc->ciss_notify_thread, "ciss_notify%d", 4130 device_get_unit(sc->ciss_dev))) 4131 panic("Could not create notify thread\n"); 4132 } 4133 4134 /************************************************************************ 4135 * Kill the notification kernel thread. 4136 */ 4137 static void 4138 ciss_kill_notify_thread(struct ciss_softc *sc) 4139 { 4140 4141 if (sc->ciss_notify_thread == NULL) 4142 return; 4143 4144 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4145 wakeup(&sc->ciss_notify); 4146 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0); 4147 } 4148 4149 /************************************************************************ 4150 * Print a request. 4151 */ 4152 static void 4153 ciss_print_request(struct ciss_request *cr) 4154 { 4155 struct ciss_softc *sc; 4156 struct ciss_command *cc; 4157 int i; 4158 char hexstr[HEX_NCPYLEN(CISS_CDB_BUFFER_SIZE)]; 4159 4160 sc = cr->cr_sc; 4161 cc = cr->cr_cc; 4162 4163 ciss_printf(sc, "REQUEST @ %p\n", cr); 4164 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4165 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4166 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4167 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4168 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4169 switch(cc->header.address.mode.mode) { 4170 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4171 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4172 ciss_printf(sc, " physical bus %d target %d\n", 4173 cc->header.address.physical.bus, cc->header.address.physical.target); 4174 break; 4175 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4176 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4177 break; 4178 } 4179 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4180 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4181 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4182 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4183 cc->cdb.cdb_length, 4184 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4185 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4186 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4187 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4188 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4189 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4190 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4191 ciss_printf(sc, " %s\n", hexncpy(&cc->cdb.cdb[0], cc->cdb.cdb_length, 4192 hexstr, HEX_NCPYLEN(cc->cdb.cdb_length), " ")); 4193 4194 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4195 /* XXX print error info */ 4196 } else { 4197 /* since we don't use chained s/g, don't support it here */ 4198 for (i = 0; i < cc->header.sg_in_list; i++) { 4199 if ((i % 4) == 0) 4200 ciss_printf(sc, " "); 4201 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4202 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4203 kprintf("\n"); 4204 } 4205 } 4206 } 4207 4208 /************************************************************************ 4209 * Print information about the status of a logical drive. 4210 */ 4211 static void 4212 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4213 { 4214 int bus, target, i; 4215 4216 if (ld->cl_lstatus == NULL) { 4217 kprintf("does not exist\n"); 4218 return; 4219 } 4220 4221 /* print drive status */ 4222 switch(ld->cl_lstatus->status) { 4223 case CISS_LSTATUS_OK: 4224 kprintf("online\n"); 4225 break; 4226 case CISS_LSTATUS_INTERIM_RECOVERY: 4227 kprintf("in interim recovery mode\n"); 4228 break; 4229 case CISS_LSTATUS_READY_RECOVERY: 4230 kprintf("ready to begin recovery\n"); 4231 break; 4232 case CISS_LSTATUS_RECOVERING: 4233 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4234 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4235 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4236 bus, target, ld->cl_lstatus->blocks_to_recover); 4237 break; 4238 case CISS_LSTATUS_EXPANDING: 4239 kprintf("being expanded, %u blocks remaining\n", 4240 ld->cl_lstatus->blocks_to_recover); 4241 break; 4242 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4243 kprintf("queued for expansion\n"); 4244 break; 4245 case CISS_LSTATUS_FAILED: 4246 kprintf("queued for expansion\n"); 4247 break; 4248 case CISS_LSTATUS_WRONG_PDRIVE: 4249 kprintf("wrong physical drive inserted\n"); 4250 break; 4251 case CISS_LSTATUS_MISSING_PDRIVE: 4252 kprintf("missing a needed physical drive\n"); 4253 break; 4254 case CISS_LSTATUS_BECOMING_READY: 4255 kprintf("becoming ready\n"); 4256 break; 4257 } 4258 4259 /* print failed physical drives */ 4260 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4261 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4262 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4263 if (bus == -1) 4264 continue; 4265 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4266 ld->cl_lstatus->drive_failure_map[i]); 4267 } 4268 } 4269 4270 #ifdef CISS_DEBUG 4271 #include "opt_ddb.h" 4272 #ifdef DDB 4273 #include <ddb/ddb.h> 4274 /************************************************************************ 4275 * Print information about the controller/driver. 4276 */ 4277 static void 4278 ciss_print_adapter(struct ciss_softc *sc) 4279 { 4280 int i, j; 4281 4282 ciss_printf(sc, "ADAPTER:\n"); 4283 for (i = 0; i < CISSQ_COUNT; i++) { 4284 ciss_printf(sc, "%s %d/%d\n", 4285 i == 0 ? "free" : 4286 i == 1 ? "busy" : "complete", 4287 sc->ciss_qstat[i].q_length, 4288 sc->ciss_qstat[i].q_max); 4289 } 4290 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4291 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4292 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4293 4294 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4295 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4296 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4297 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4298 } 4299 } 4300 4301 /* XXX Should physical drives be printed out here? */ 4302 4303 for (i = 1; i < sc->ciss_max_requests; i++) 4304 ciss_print_request(sc->ciss_request + i); 4305 } 4306 4307 /* DDB hook */ 4308 DB_COMMAND(ciss_prt, db_ciss_prt) 4309 { 4310 struct ciss_softc *sc; 4311 4312 sc = devclass_get_softc(devclass_find("ciss"), 0); 4313 if (sc == NULL) { 4314 kprintf("no ciss controllers\n"); 4315 } else { 4316 ciss_print_adapter(sc); 4317 } 4318 } 4319 #endif 4320 #endif 4321 4322 /************************************************************************ 4323 * Return a name for a logical drive status value. 4324 */ 4325 static const char * 4326 ciss_name_ldrive_status(int status) 4327 { 4328 switch (status) { 4329 case CISS_LSTATUS_OK: 4330 return("OK"); 4331 case CISS_LSTATUS_FAILED: 4332 return("failed"); 4333 case CISS_LSTATUS_NOT_CONFIGURED: 4334 return("not configured"); 4335 case CISS_LSTATUS_INTERIM_RECOVERY: 4336 return("interim recovery"); 4337 case CISS_LSTATUS_READY_RECOVERY: 4338 return("ready for recovery"); 4339 case CISS_LSTATUS_RECOVERING: 4340 return("recovering"); 4341 case CISS_LSTATUS_WRONG_PDRIVE: 4342 return("wrong physical drive inserted"); 4343 case CISS_LSTATUS_MISSING_PDRIVE: 4344 return("missing physical drive"); 4345 case CISS_LSTATUS_EXPANDING: 4346 return("expanding"); 4347 case CISS_LSTATUS_BECOMING_READY: 4348 return("becoming ready"); 4349 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4350 return("queued for expansion"); 4351 } 4352 return("unknown status"); 4353 } 4354 4355 /************************************************************************ 4356 * Return an online/offline/nonexistent value for a logical drive 4357 * status value. 4358 */ 4359 static int 4360 ciss_decode_ldrive_status(int status) 4361 { 4362 switch(status) { 4363 case CISS_LSTATUS_NOT_CONFIGURED: 4364 return(CISS_LD_NONEXISTENT); 4365 4366 case CISS_LSTATUS_OK: 4367 case CISS_LSTATUS_INTERIM_RECOVERY: 4368 case CISS_LSTATUS_READY_RECOVERY: 4369 case CISS_LSTATUS_RECOVERING: 4370 case CISS_LSTATUS_EXPANDING: 4371 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4372 return(CISS_LD_ONLINE); 4373 4374 case CISS_LSTATUS_FAILED: 4375 case CISS_LSTATUS_WRONG_PDRIVE: 4376 case CISS_LSTATUS_MISSING_PDRIVE: 4377 case CISS_LSTATUS_BECOMING_READY: 4378 default: 4379 return(CISS_LD_OFFLINE); 4380 } 4381 } 4382 4383 4384 /************************************************************************ 4385 * Return a name for a logical drive's organisation. 4386 */ 4387 static const char * 4388 ciss_name_ldrive_org(int org) 4389 { 4390 switch(org) { 4391 case CISS_LDRIVE_RAID0: 4392 return("RAID 0"); 4393 case CISS_LDRIVE_RAID1: 4394 return("RAID 1(1+0)"); 4395 case CISS_LDRIVE_RAID4: 4396 return("RAID 4"); 4397 case CISS_LDRIVE_RAID5: 4398 return("RAID 5"); 4399 case CISS_LDRIVE_RAID51: 4400 return("RAID 5+1"); 4401 case CISS_LDRIVE_RAIDADG: 4402 return("RAID ADG"); 4403 } 4404 return("unknown"); 4405 } 4406 4407 /************************************************************************ 4408 * Return a name for a command status value. 4409 */ 4410 static const char * 4411 ciss_name_command_status(int status) 4412 { 4413 switch(status) { 4414 case CISS_CMD_STATUS_SUCCESS: 4415 return("success"); 4416 case CISS_CMD_STATUS_TARGET_STATUS: 4417 return("target status"); 4418 case CISS_CMD_STATUS_DATA_UNDERRUN: 4419 return("data underrun"); 4420 case CISS_CMD_STATUS_DATA_OVERRUN: 4421 return("data overrun"); 4422 case CISS_CMD_STATUS_INVALID_COMMAND: 4423 return("invalid command"); 4424 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4425 return("protocol error"); 4426 case CISS_CMD_STATUS_HARDWARE_ERROR: 4427 return("hardware error"); 4428 case CISS_CMD_STATUS_CONNECTION_LOST: 4429 return("connection lost"); 4430 case CISS_CMD_STATUS_ABORTED: 4431 return("aborted"); 4432 case CISS_CMD_STATUS_ABORT_FAILED: 4433 return("abort failed"); 4434 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4435 return("unsolicited abort"); 4436 case CISS_CMD_STATUS_TIMEOUT: 4437 return("timeout"); 4438 case CISS_CMD_STATUS_UNABORTABLE: 4439 return("unabortable"); 4440 } 4441 return("unknown status"); 4442 } 4443 4444 /************************************************************************ 4445 * Handle an open on the control device. 4446 */ 4447 static int 4448 ciss_open(struct dev_open_args *ap) 4449 { 4450 cdev_t dev = ap->a_head.a_dev; 4451 struct ciss_softc *sc; 4452 4453 debug_called(1); 4454 4455 sc = (struct ciss_softc *)dev->si_drv1; 4456 4457 /* we might want to veto if someone already has us open */ 4458 4459 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4460 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4461 lockmgr(&sc->ciss_lock, LK_RELEASE); 4462 return(0); 4463 } 4464 4465 /************************************************************************ 4466 * Handle the last close on the control device. 4467 */ 4468 static int 4469 ciss_close(struct dev_close_args *ap) 4470 { 4471 cdev_t dev = ap->a_head.a_dev; 4472 struct ciss_softc *sc; 4473 4474 debug_called(1); 4475 4476 sc = (struct ciss_softc *)dev->si_drv1; 4477 4478 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4479 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4480 lockmgr(&sc->ciss_lock, LK_RELEASE); 4481 return (0); 4482 } 4483 4484 /******************************************************************************** 4485 * Handle adapter-specific control operations. 4486 * 4487 * Note that the API here is compatible with the Linux driver, in order to 4488 * simplify the porting of Compaq's userland tools. 4489 */ 4490 static int 4491 ciss_ioctl(struct dev_ioctl_args *ap) 4492 { 4493 caddr_t addr = ap->a_data; 4494 cdev_t dev = ap->a_head.a_dev; 4495 u_long cmd = ap->a_cmd; 4496 struct ciss_softc *sc; 4497 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4498 #ifdef __x86_64__ 4499 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4500 IOCTL_Command_struct ioc_swab; 4501 #endif 4502 int error; 4503 4504 debug_called(1); 4505 4506 sc = (struct ciss_softc *)dev->si_drv1; 4507 error = 0; 4508 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4509 4510 switch(cmd) { 4511 case CCISS_GETQSTATS: 4512 { 4513 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4514 4515 switch (cr->cs_item) { 4516 case CISSQ_FREE: 4517 case CISSQ_NOTIFY: 4518 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4519 sizeof(struct ciss_qstat)); 4520 break; 4521 default: 4522 error = ENOIOCTL; 4523 break; 4524 } 4525 4526 break; 4527 } 4528 4529 case CCISS_GETPCIINFO: 4530 { 4531 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4532 4533 pis->bus = pci_get_bus(sc->ciss_dev); 4534 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4535 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4536 pci_get_subdevice(sc->ciss_dev); 4537 4538 break; 4539 } 4540 4541 case CCISS_GETINTINFO: 4542 { 4543 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4544 4545 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4546 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4547 4548 break; 4549 } 4550 4551 case CCISS_SETINTINFO: 4552 { 4553 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4554 4555 if ((cis->delay == 0) && (cis->count == 0)) { 4556 error = EINVAL; 4557 break; 4558 } 4559 4560 /* 4561 * XXX apparently this is only safe if the controller is idle, 4562 * we should suspend it before doing this. 4563 */ 4564 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4565 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4566 4567 if (ciss_update_config(sc)) 4568 error = EIO; 4569 4570 /* XXX resume the controller here */ 4571 break; 4572 } 4573 4574 case CCISS_GETNODENAME: 4575 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4576 sizeof(NodeName_type)); 4577 break; 4578 4579 case CCISS_SETNODENAME: 4580 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4581 sizeof(NodeName_type)); 4582 if (ciss_update_config(sc)) 4583 error = EIO; 4584 break; 4585 4586 case CCISS_GETHEARTBEAT: 4587 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4588 break; 4589 4590 case CCISS_GETBUSTYPES: 4591 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4592 break; 4593 4594 case CCISS_GETFIRMVER: 4595 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4596 sizeof(FirmwareVer_type)); 4597 break; 4598 4599 case CCISS_GETDRIVERVER: 4600 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4601 break; 4602 4603 case CCISS_REVALIDVOLS: 4604 /* 4605 * This is a bit ugly; to do it "right" we really need 4606 * to find any disks that have changed, kick CAM off them, 4607 * then rescan only these disks. It'd be nice if they 4608 * a) told us which disk(s) they were going to play with, 4609 * and b) which ones had arrived. 8( 4610 */ 4611 break; 4612 4613 #ifdef __x86_64__ 4614 case CCISS_PASSTHRU32: 4615 ioc_swab.LUN_info = ioc32->LUN_info; 4616 ioc_swab.Request = ioc32->Request; 4617 ioc_swab.error_info = ioc32->error_info; 4618 ioc_swab.buf_size = ioc32->buf_size; 4619 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4620 ioc = &ioc_swab; 4621 /* FALLTHROUGH */ 4622 #endif 4623 4624 case CCISS_PASSTHRU: 4625 error = ciss_user_command(sc, ioc); 4626 break; 4627 4628 default: 4629 debug(0, "unknown ioctl 0x%lx", cmd); 4630 4631 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4632 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4633 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4634 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4635 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4636 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4637 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4638 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4639 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4640 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4641 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4642 4643 error = ENOIOCTL; 4644 break; 4645 } 4646 4647 lockmgr(&sc->ciss_lock, LK_RELEASE); 4648 return(error); 4649 } 4650