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 #if 0 /* XXX swildner callout_drain */ 1917 callout_drain(&sc->ciss_periodic); 1918 #else 1919 callout_stop(&sc->ciss_periodic); 1920 #endif 1921 lockuninit(&sc->ciss_lock); 1922 1923 /* free the controller data */ 1924 if (sc->ciss_id != NULL) 1925 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1926 1927 /* release I/O resources */ 1928 if (sc->ciss_regs_resource != NULL) 1929 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1930 sc->ciss_regs_rid, sc->ciss_regs_resource); 1931 if (sc->ciss_cfg_resource != NULL) 1932 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1933 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1934 if (sc->ciss_intr != NULL) 1935 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1936 if (sc->ciss_irq_resource != NULL) 1937 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1938 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1939 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI) 1940 pci_release_msi(sc->ciss_dev); 1941 1942 while ((cr = ciss_dequeue_free(sc)) != NULL) 1943 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1944 if (sc->ciss_buffer_dmat) 1945 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1946 1947 /* destroy command memory and DMA tag */ 1948 if (sc->ciss_command != NULL) { 1949 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1950 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1951 } 1952 if (sc->ciss_command_dmat) 1953 bus_dma_tag_destroy(sc->ciss_command_dmat); 1954 1955 if (sc->ciss_reply) { 1956 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1957 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1958 } 1959 if (sc->ciss_reply_dmat) 1960 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1961 1962 /* destroy DMA tags */ 1963 if (sc->ciss_parent_dmat) 1964 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1965 if (sc->ciss_logical) { 1966 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1967 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1968 if (sc->ciss_logical[i][j].cl_ldrive) 1969 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1970 if (sc->ciss_logical[i][j].cl_lstatus) 1971 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1972 } 1973 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1974 } 1975 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1976 } 1977 1978 if (sc->ciss_physical) { 1979 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1980 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1981 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1982 } 1983 1984 if (sc->ciss_controllers) 1985 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1986 1987 sysctl_ctx_free(&sc->ciss_sysctl_ctx); 1988 } 1989 1990 /************************************************************************ 1991 * Give a command to the adapter. 1992 * 1993 * Note that this uses the simple transport layer directly. If we 1994 * want to add support for other layers, we'll need a switch of some 1995 * sort. 1996 * 1997 * Note that the simple transport layer has no way of refusing a 1998 * command; we only have as many request structures as the adapter 1999 * supports commands, so we don't have to check (this presumes that 2000 * the adapter can handle commands as fast as we throw them at it). 2001 */ 2002 static int 2003 ciss_start(struct ciss_request *cr) 2004 { 2005 #ifdef CISS_DEBUG 2006 struct ciss_command *cc; 2007 #endif 2008 int error; 2009 2010 #ifdef CISS_DEBUG 2011 cc = cr->cr_cc; 2012 #endif 2013 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2014 2015 /* 2016 * Map the request's data. 2017 */ 2018 if ((error = ciss_map_request(cr))) 2019 return(error); 2020 2021 #if 0 2022 ciss_print_request(cr); 2023 #endif 2024 2025 return(0); 2026 } 2027 2028 /************************************************************************ 2029 * Fetch completed request(s) from the adapter, queue them for 2030 * completion handling. 2031 * 2032 * Note that this uses the simple transport layer directly. If we 2033 * want to add support for other layers, we'll need a switch of some 2034 * sort. 2035 * 2036 * Note that the simple transport mechanism does not require any 2037 * reentrancy protection; the OPQ read is atomic. If there is a 2038 * chance of a race with something else that might move the request 2039 * off the busy list, then we will have to lock against that 2040 * (eg. timeouts, etc.) 2041 */ 2042 static void 2043 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2044 { 2045 struct ciss_request *cr; 2046 struct ciss_command *cc; 2047 u_int32_t tag, index; 2048 2049 debug_called(3); 2050 2051 /* 2052 * Loop quickly taking requests from the adapter and moving them 2053 * to the completed queue. 2054 */ 2055 for (;;) { 2056 2057 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2058 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2059 break; 2060 index = tag >> 2; 2061 debug(2, "completed command %d%s", index, 2062 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2063 if (index >= sc->ciss_max_requests) { 2064 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2065 continue; 2066 } 2067 cr = &(sc->ciss_request[index]); 2068 cc = cr->cr_cc; 2069 cc->header.host_tag = tag; /* not updated by adapter */ 2070 ciss_enqueue_complete(cr, qh); 2071 } 2072 2073 } 2074 2075 static void 2076 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2077 { 2078 struct ciss_request *cr; 2079 struct ciss_command *cc; 2080 u_int32_t tag, index; 2081 2082 debug_called(3); 2083 2084 /* 2085 * Loop quickly taking requests from the adapter and moving them 2086 * to the completed queue. 2087 */ 2088 for (;;) { 2089 tag = sc->ciss_reply[sc->ciss_rqidx]; 2090 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2091 break; 2092 index = tag >> 2; 2093 debug(2, "completed command %d%s\n", index, 2094 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2095 if (index < sc->ciss_max_requests) { 2096 cr = &(sc->ciss_request[index]); 2097 cc = cr->cr_cc; 2098 cc->header.host_tag = tag; /* not updated by adapter */ 2099 ciss_enqueue_complete(cr, qh); 2100 } else { 2101 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2102 } 2103 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2104 sc->ciss_rqidx = 0; 2105 sc->ciss_cycle ^= 1; 2106 } 2107 } 2108 2109 } 2110 2111 /************************************************************************ 2112 * Take an interrupt from the adapter. 2113 */ 2114 static void 2115 ciss_intr(void *arg) 2116 { 2117 cr_qhead_t qh; 2118 struct ciss_softc *sc = (struct ciss_softc *)arg; 2119 2120 /* 2121 * The only interrupt we recognise indicates that there are 2122 * entries in the outbound post queue. 2123 */ 2124 STAILQ_INIT(&qh); 2125 ciss_done(sc, &qh); 2126 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2127 ciss_complete(sc, &qh); 2128 lockmgr(&sc->ciss_lock, LK_RELEASE); 2129 } 2130 2131 static void 2132 ciss_perf_intr(void *arg) 2133 { 2134 struct ciss_softc *sc = (struct ciss_softc *)arg; 2135 2136 /* Clear the interrupt and flush the bridges. Docs say that the flush 2137 * needs to be done twice, which doesn't seem right. 2138 */ 2139 CISS_TL_PERF_CLEAR_INT(sc); 2140 CISS_TL_PERF_FLUSH_INT(sc); 2141 2142 ciss_perf_msi_intr(sc); 2143 } 2144 2145 static void 2146 ciss_perf_msi_intr(void *arg) 2147 { 2148 cr_qhead_t qh; 2149 struct ciss_softc *sc = (struct ciss_softc *)arg; 2150 2151 STAILQ_INIT(&qh); 2152 ciss_perf_done(sc, &qh); 2153 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2154 ciss_complete(sc, &qh); 2155 lockmgr(&sc->ciss_lock, LK_RELEASE); 2156 } 2157 2158 2159 /************************************************************************ 2160 * Process completed requests. 2161 * 2162 * Requests can be completed in three fashions: 2163 * 2164 * - by invoking a callback function (cr_complete is non-null) 2165 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2166 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2167 */ 2168 static void 2169 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2170 { 2171 struct ciss_request *cr; 2172 2173 debug_called(2); 2174 2175 /* 2176 * Loop taking requests off the completed queue and performing 2177 * completion processing on them. 2178 */ 2179 for (;;) { 2180 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2181 break; 2182 ciss_unmap_request(cr); 2183 2184 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2185 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2186 cr->cr_flags &= ~CISS_REQ_BUSY; 2187 2188 /* 2189 * If the request has a callback, invoke it. 2190 */ 2191 if (cr->cr_complete != NULL) { 2192 cr->cr_complete(cr); 2193 continue; 2194 } 2195 2196 /* 2197 * If someone is sleeping on this request, wake them up. 2198 */ 2199 if (cr->cr_flags & CISS_REQ_SLEEP) { 2200 cr->cr_flags &= ~CISS_REQ_SLEEP; 2201 wakeup(cr); 2202 continue; 2203 } 2204 2205 /* 2206 * If someone is polling this request for completion, signal. 2207 */ 2208 if (cr->cr_flags & CISS_REQ_POLL) { 2209 cr->cr_flags &= ~CISS_REQ_POLL; 2210 continue; 2211 } 2212 2213 /* 2214 * Give up and throw the request back on the free queue. This 2215 * should never happen; resources will probably be lost. 2216 */ 2217 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2218 ciss_enqueue_free(cr); 2219 } 2220 } 2221 2222 /************************************************************************ 2223 * Report on the completion status of a request, and pass back SCSI 2224 * and command status values. 2225 */ 2226 static int 2227 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2228 { 2229 struct ciss_command *cc; 2230 struct ciss_error_info *ce; 2231 2232 debug_called(2); 2233 2234 cc = cr->cr_cc; 2235 ce = (struct ciss_error_info *)&(cc->sg[0]); 2236 2237 /* 2238 * We don't consider data under/overrun an error for the Report 2239 * Logical/Physical LUNs commands. 2240 */ 2241 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2242 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2243 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2244 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2245 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2246 (cc->cdb.cdb[0] == INQUIRY))) { 2247 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2248 debug(2, "ignoring irrelevant under/overrun error"); 2249 } 2250 2251 /* 2252 * Check the command's error bit, if clear, there's no status and 2253 * everything is OK. 2254 */ 2255 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2256 if (scsi_status != NULL) 2257 *scsi_status = SCSI_STATUS_OK; 2258 if (command_status != NULL) 2259 *command_status = CISS_CMD_STATUS_SUCCESS; 2260 return(0); 2261 } else { 2262 if (command_status != NULL) 2263 *command_status = ce->command_status; 2264 if (scsi_status != NULL) { 2265 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2266 *scsi_status = ce->scsi_status; 2267 } else { 2268 *scsi_status = -1; 2269 } 2270 } 2271 if (bootverbose) 2272 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2273 ce->command_status, ciss_name_command_status(ce->command_status), 2274 ce->scsi_status); 2275 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2276 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2277 ce->additional_error_info.invalid_command.offense_size, 2278 ce->additional_error_info.invalid_command.offense_offset, 2279 ce->additional_error_info.invalid_command.offense_value, 2280 func); 2281 } 2282 } 2283 #if 0 2284 ciss_print_request(cr); 2285 #endif 2286 return(1); 2287 } 2288 2289 /************************************************************************ 2290 * Issue a request and don't return until it's completed. 2291 * 2292 * Depending on adapter status, we may poll or sleep waiting for 2293 * completion. 2294 */ 2295 static int 2296 ciss_synch_request(struct ciss_request *cr, int timeout) 2297 { 2298 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2299 return(ciss_wait_request(cr, timeout)); 2300 } else { 2301 return(ciss_poll_request(cr, timeout)); 2302 } 2303 } 2304 2305 /************************************************************************ 2306 * Issue a request and poll for completion. 2307 * 2308 * Timeout in milliseconds. 2309 */ 2310 static int 2311 ciss_poll_request(struct ciss_request *cr, int timeout) 2312 { 2313 cr_qhead_t qh; 2314 struct ciss_softc *sc; 2315 int error; 2316 2317 debug_called(2); 2318 2319 STAILQ_INIT(&qh); 2320 sc = cr->cr_sc; 2321 cr->cr_flags |= CISS_REQ_POLL; 2322 if ((error = ciss_start(cr)) != 0) 2323 return(error); 2324 2325 do { 2326 if (sc->ciss_perf) 2327 ciss_perf_done(sc, &qh); 2328 else 2329 ciss_done(sc, &qh); 2330 ciss_complete(sc, &qh); 2331 if (!(cr->cr_flags & CISS_REQ_POLL)) 2332 return(0); 2333 DELAY(1000); 2334 } while (timeout-- >= 0); 2335 return(EWOULDBLOCK); 2336 } 2337 2338 /************************************************************************ 2339 * Issue a request and sleep waiting for completion. 2340 * 2341 * Timeout in milliseconds. Note that a spurious wakeup will reset 2342 * the timeout. 2343 */ 2344 static int 2345 ciss_wait_request(struct ciss_request *cr, int timeout) 2346 { 2347 int error; 2348 2349 debug_called(2); 2350 2351 cr->cr_flags |= CISS_REQ_SLEEP; 2352 if ((error = ciss_start(cr)) != 0) 2353 return(error); 2354 2355 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2356 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000); 2357 } 2358 return(error); 2359 } 2360 2361 #if 0 2362 /************************************************************************ 2363 * Abort a request. Note that a potential exists here to race the 2364 * request being completed; the caller must deal with this. 2365 */ 2366 static int 2367 ciss_abort_request(struct ciss_request *ar) 2368 { 2369 struct ciss_request *cr; 2370 struct ciss_command *cc; 2371 struct ciss_message_cdb *cmc; 2372 int error; 2373 2374 debug_called(1); 2375 2376 /* get a request */ 2377 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2378 return(error); 2379 2380 /* build the abort command */ 2381 cc = cr->cr_cc; 2382 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2383 cc->header.address.physical.target = 0; 2384 cc->header.address.physical.bus = 0; 2385 cc->cdb.cdb_length = sizeof(*cmc); 2386 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2387 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2388 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2389 cc->cdb.timeout = 30; 2390 2391 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2392 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2393 cmc->type = CISS_MESSAGE_ABORT_TASK; 2394 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2395 2396 /* 2397 * Send the request and wait for a response. If we believe we 2398 * aborted the request OK, clear the flag that indicates it's 2399 * running. 2400 */ 2401 error = ciss_synch_request(cr, 35 * 1000); 2402 if (!error) 2403 error = ciss_report_request(cr, NULL, NULL); 2404 ciss_release_request(cr); 2405 2406 return(error); 2407 } 2408 #endif 2409 2410 2411 /************************************************************************ 2412 * Fetch and initialise a request 2413 */ 2414 static int 2415 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2416 { 2417 struct ciss_request *cr; 2418 2419 debug_called(2); 2420 2421 /* 2422 * Get a request and clean it up. 2423 */ 2424 if ((cr = ciss_dequeue_free(sc)) == NULL) 2425 return(ENOMEM); 2426 2427 cr->cr_data = NULL; 2428 cr->cr_flags = 0; 2429 cr->cr_complete = NULL; 2430 cr->cr_private = NULL; 2431 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2432 2433 ciss_preen_command(cr); 2434 *crp = cr; 2435 return(0); 2436 } 2437 2438 static void 2439 ciss_preen_command(struct ciss_request *cr) 2440 { 2441 struct ciss_command *cc; 2442 u_int32_t cmdphys; 2443 2444 /* 2445 * Clean up the command structure. 2446 * 2447 * Note that we set up the error_info structure here, since the 2448 * length can be overwritten by any command. 2449 */ 2450 cc = cr->cr_cc; 2451 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2452 cc->header.sg_total = 0; 2453 cc->header.host_tag = cr->cr_tag << 2; 2454 cc->header.host_tag_zeroes = 0; 2455 cmdphys = cr->cr_ccphys; 2456 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2457 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2458 } 2459 2460 /************************************************************************ 2461 * Release a request to the free list. 2462 */ 2463 static void 2464 ciss_release_request(struct ciss_request *cr) 2465 { 2466 debug_called(2); 2467 2468 /* release the request to the free queue */ 2469 ciss_requeue_free(cr); 2470 } 2471 2472 /************************************************************************ 2473 * Allocate a request that will be used to send a BMIC command. Do some 2474 * of the common setup here to avoid duplicating it everywhere else. 2475 */ 2476 static int 2477 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2478 int opcode, void **bufp, size_t bufsize) 2479 { 2480 struct ciss_request *cr; 2481 struct ciss_command *cc; 2482 struct ciss_bmic_cdb *cbc; 2483 void *buf; 2484 int error; 2485 int dataout; 2486 2487 debug_called(2); 2488 2489 cr = NULL; 2490 buf = NULL; 2491 2492 /* 2493 * Get a request. 2494 */ 2495 if ((error = ciss_get_request(sc, &cr)) != 0) 2496 goto out; 2497 2498 /* 2499 * Allocate data storage if requested, determine the data direction. 2500 */ 2501 dataout = 0; 2502 if ((bufsize > 0) && (bufp != NULL)) { 2503 if (*bufp == NULL) { 2504 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2505 } else { 2506 buf = *bufp; 2507 dataout = 1; /* we are given a buffer, so we are writing */ 2508 } 2509 } 2510 2511 /* 2512 * Build a CISS BMIC command to get the logical drive ID. 2513 */ 2514 cr->cr_data = buf; 2515 cr->cr_length = bufsize; 2516 if (!dataout) 2517 cr->cr_flags = CISS_REQ_DATAIN; 2518 2519 cc = cr->cr_cc; 2520 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2521 cc->header.address.physical.bus = 0; 2522 cc->header.address.physical.target = 0; 2523 cc->cdb.cdb_length = sizeof(*cbc); 2524 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2525 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2526 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2527 cc->cdb.timeout = 0; 2528 2529 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2530 bzero(cbc, sizeof(*cbc)); 2531 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2532 cbc->bmic_opcode = opcode; 2533 cbc->size = htons((u_int16_t)bufsize); 2534 2535 out: 2536 if (error) { 2537 if (cr != NULL) 2538 ciss_release_request(cr); 2539 } else { 2540 *crp = cr; 2541 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2542 *bufp = buf; 2543 } 2544 return(error); 2545 } 2546 2547 /************************************************************************ 2548 * Handle a command passed in from userspace. 2549 */ 2550 static int 2551 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2552 { 2553 struct ciss_request *cr; 2554 struct ciss_command *cc; 2555 struct ciss_error_info *ce; 2556 int error = 0; 2557 2558 debug_called(1); 2559 2560 cr = NULL; 2561 2562 /* 2563 * Get a request. 2564 */ 2565 while (ciss_get_request(sc, &cr) != 0) 2566 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz); 2567 cc = cr->cr_cc; 2568 2569 /* 2570 * Allocate an in-kernel databuffer if required, copy in user data. 2571 */ 2572 lockmgr(&sc->ciss_lock, LK_RELEASE); 2573 cr->cr_length = ioc->buf_size; 2574 if (ioc->buf_size > 0) { 2575 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2576 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2577 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2578 goto out_unlocked; 2579 } 2580 } 2581 2582 /* 2583 * Build the request based on the user command. 2584 */ 2585 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2586 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2587 2588 /* XXX anything else to populate here? */ 2589 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2590 2591 /* 2592 * Run the command. 2593 */ 2594 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2595 debug(0, "request failed - %d", error); 2596 goto out; 2597 } 2598 2599 /* 2600 * Check to see if the command succeeded. 2601 */ 2602 ce = (struct ciss_error_info *)&(cc->sg[0]); 2603 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2604 bzero(ce, sizeof(*ce)); 2605 2606 /* 2607 * Copy the results back to the user. 2608 */ 2609 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2610 lockmgr(&sc->ciss_lock, LK_RELEASE); 2611 if ((ioc->buf_size > 0) && 2612 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2613 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2614 goto out_unlocked; 2615 } 2616 2617 /* done OK */ 2618 error = 0; 2619 2620 out_unlocked: 2621 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2622 2623 out: 2624 if ((cr != NULL) && (cr->cr_data != NULL)) 2625 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2626 if (cr != NULL) 2627 ciss_release_request(cr); 2628 return(error); 2629 } 2630 2631 /************************************************************************ 2632 * Map a request into bus-visible space, initialise the scatter/gather 2633 * list. 2634 */ 2635 static int 2636 ciss_map_request(struct ciss_request *cr) 2637 { 2638 struct ciss_softc *sc; 2639 int error = 0; 2640 2641 debug_called(2); 2642 2643 sc = cr->cr_sc; 2644 2645 /* check that mapping is necessary */ 2646 if (cr->cr_flags & CISS_REQ_MAPPED) 2647 return(0); 2648 2649 cr->cr_flags |= CISS_REQ_MAPPED; 2650 2651 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2652 BUS_DMASYNC_PREWRITE); 2653 2654 if (cr->cr_data != NULL) { 2655 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2656 cr->cr_data, cr->cr_length, 2657 ciss_request_map_helper, cr, 0); 2658 if (error != 0) 2659 return (error); 2660 } else { 2661 /* 2662 * Post the command to the adapter. 2663 */ 2664 cr->cr_sg_tag = CISS_SG_NONE; 2665 cr->cr_flags |= CISS_REQ_BUSY; 2666 if (sc->ciss_perf) 2667 CISS_TL_PERF_POST_CMD(sc, cr); 2668 else 2669 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2670 } 2671 2672 return(0); 2673 } 2674 2675 static void 2676 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2677 { 2678 struct ciss_command *cc; 2679 struct ciss_request *cr; 2680 struct ciss_softc *sc; 2681 int i; 2682 2683 debug_called(2); 2684 2685 cr = (struct ciss_request *)arg; 2686 sc = cr->cr_sc; 2687 cc = cr->cr_cc; 2688 2689 for (i = 0; i < nseg; i++) { 2690 cc->sg[i].address = segs[i].ds_addr; 2691 cc->sg[i].length = segs[i].ds_len; 2692 cc->sg[i].extension = 0; 2693 } 2694 /* we leave the s/g table entirely within the command */ 2695 cc->header.sg_in_list = nseg; 2696 cc->header.sg_total = nseg; 2697 2698 if (cr->cr_flags & CISS_REQ_DATAIN) 2699 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2700 if (cr->cr_flags & CISS_REQ_DATAOUT) 2701 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2702 2703 if (nseg == 0) 2704 cr->cr_sg_tag = CISS_SG_NONE; 2705 else if (nseg == 1) 2706 cr->cr_sg_tag = CISS_SG_1; 2707 else if (nseg == 2) 2708 cr->cr_sg_tag = CISS_SG_2; 2709 else if (nseg <= 4) 2710 cr->cr_sg_tag = CISS_SG_4; 2711 else if (nseg <= 8) 2712 cr->cr_sg_tag = CISS_SG_8; 2713 else if (nseg <= 16) 2714 cr->cr_sg_tag = CISS_SG_16; 2715 else if (nseg <= 32) 2716 cr->cr_sg_tag = CISS_SG_32; 2717 else 2718 cr->cr_sg_tag = CISS_SG_MAX; 2719 2720 /* 2721 * Post the command to the adapter. 2722 */ 2723 cr->cr_flags |= CISS_REQ_BUSY; 2724 if (sc->ciss_perf) 2725 CISS_TL_PERF_POST_CMD(sc, cr); 2726 else 2727 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2728 } 2729 2730 /************************************************************************ 2731 * Unmap a request from bus-visible space. 2732 */ 2733 static void 2734 ciss_unmap_request(struct ciss_request *cr) 2735 { 2736 struct ciss_softc *sc; 2737 2738 debug_called(2); 2739 2740 sc = cr->cr_sc; 2741 2742 /* check that unmapping is necessary */ 2743 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2744 return; 2745 2746 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2747 BUS_DMASYNC_POSTWRITE); 2748 2749 if (cr->cr_data == NULL) 2750 goto out; 2751 2752 if (cr->cr_flags & CISS_REQ_DATAIN) 2753 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2754 if (cr->cr_flags & CISS_REQ_DATAOUT) 2755 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2756 2757 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2758 out: 2759 cr->cr_flags &= ~CISS_REQ_MAPPED; 2760 } 2761 2762 /************************************************************************ 2763 * Attach the driver to CAM. 2764 * 2765 * We put all the logical drives on a single SCSI bus. 2766 */ 2767 static int 2768 ciss_cam_init(struct ciss_softc *sc) 2769 { 2770 int i, maxbus; 2771 2772 debug_called(1); 2773 2774 /* 2775 * Allocate a devq. We can reuse this for the masked physical 2776 * devices if we decide to export these as well. 2777 */ 2778 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2779 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2780 return(ENOMEM); 2781 } 2782 2783 /* 2784 * Create a SIM. 2785 * 2786 * This naturally wastes a bit of memory. The alternative is to allocate 2787 * and register each bus as it is found, and then track them on a linked 2788 * list. Unfortunately, the driver has a few places where it needs to 2789 * look up the SIM based solely on bus number, and it's unclear whether 2790 * a list traversal would work for these situations. 2791 */ 2792 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2793 CISS_PHYSICAL_BASE); 2794 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2795 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2796 2797 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2798 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2799 "ciss", sc, 2800 device_get_unit(sc->ciss_dev), 2801 &sc->ciss_lock, 2802 2, 2803 sc->ciss_max_requests - 2, 2804 sc->ciss_cam_devq)) == NULL) { 2805 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2806 return(ENOMEM); 2807 } 2808 2809 /* 2810 * Register bus with this SIM. 2811 */ 2812 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2813 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2814 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2815 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2816 lockmgr(&sc->ciss_lock, LK_RELEASE); 2817 return (ENXIO); 2818 } 2819 } 2820 lockmgr(&sc->ciss_lock, LK_RELEASE); 2821 } 2822 2823 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2824 CISS_PHYSICAL_BASE; i++) { 2825 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2826 "ciss", sc, 2827 device_get_unit(sc->ciss_dev), 2828 &sc->ciss_lock, 1, 2829 sc->ciss_max_requests - 2, 2830 sc->ciss_cam_devq)) == NULL) { 2831 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2832 return (ENOMEM); 2833 } 2834 2835 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2836 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2837 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2838 lockmgr(&sc->ciss_lock, LK_RELEASE); 2839 return (ENXIO); 2840 } 2841 lockmgr(&sc->ciss_lock, LK_RELEASE); 2842 } 2843 2844 /* 2845 * Initiate a rescan of the bus. 2846 */ 2847 ciss_cam_rescan_all(sc); 2848 2849 return(0); 2850 } 2851 2852 /************************************************************************ 2853 * Initiate a rescan of the 'logical devices' SIM 2854 */ 2855 static void 2856 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2857 { 2858 union ccb *ccb; 2859 2860 debug_called(1); 2861 2862 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2863 2864 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2865 cam_sim_path(sc->ciss_cam_sim[bus]), 2866 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2867 ciss_printf(sc, "rescan failed (can't create path)\n"); 2868 kfree(ccb, M_TEMP); 2869 return; 2870 } 2871 2872 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 2873 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2874 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2875 ccb->crcn.flags = CAM_FLAG_NONE; 2876 xpt_action(ccb); 2877 2878 /* scan is now in progress */ 2879 } 2880 2881 static void 2882 ciss_cam_rescan_all(struct ciss_softc *sc) 2883 { 2884 int i; 2885 2886 /* Rescan the logical buses */ 2887 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2888 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2889 /* Rescan the physical buses */ 2890 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2891 CISS_PHYSICAL_BASE; i++) 2892 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2893 } 2894 2895 static void 2896 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2897 { 2898 xpt_free_path(ccb->ccb_h.path); 2899 kfree(ccb, M_TEMP); 2900 } 2901 2902 /************************************************************************ 2903 * Handle requests coming from CAM 2904 */ 2905 static void 2906 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2907 { 2908 struct ciss_softc *sc; 2909 struct ccb_scsiio *csio; 2910 int bus, target; 2911 int physical; 2912 2913 sc = cam_sim_softc(sim); 2914 bus = cam_sim_bus(sim); 2915 csio = (struct ccb_scsiio *)&ccb->csio; 2916 target = csio->ccb_h.target_id; 2917 physical = CISS_IS_PHYSICAL(bus); 2918 2919 switch (ccb->ccb_h.func_code) { 2920 2921 /* perform SCSI I/O */ 2922 case XPT_SCSI_IO: 2923 if (!ciss_cam_action_io(sim, csio)) 2924 return; 2925 break; 2926 2927 /* perform geometry calculations */ 2928 case XPT_CALC_GEOMETRY: 2929 { 2930 struct ccb_calc_geometry *ccg = &ccb->ccg; 2931 struct ciss_ldrive *ld; 2932 2933 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2934 2935 ld = NULL; 2936 if (!physical) 2937 ld = &sc->ciss_logical[bus][target]; 2938 2939 /* 2940 * Use the cached geometry settings unless the fault tolerance 2941 * is invalid. 2942 */ 2943 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2944 u_int32_t secs_per_cylinder; 2945 2946 ccg->heads = 255; 2947 ccg->secs_per_track = 32; 2948 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2949 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2950 } else { 2951 ccg->heads = ld->cl_geometry.heads; 2952 ccg->secs_per_track = ld->cl_geometry.sectors; 2953 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2954 } 2955 ccb->ccb_h.status = CAM_REQ_CMP; 2956 break; 2957 } 2958 2959 /* handle path attribute inquiry */ 2960 case XPT_PATH_INQ: 2961 { 2962 struct ccb_pathinq *cpi = &ccb->cpi; 2963 2964 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2965 2966 cpi->version_num = 1; 2967 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2968 cpi->target_sprt = 0; 2969 cpi->hba_misc = 0; 2970 cpi->max_target = CISS_MAX_LOGICAL; 2971 cpi->max_lun = 0; /* 'logical drive' channel only */ 2972 cpi->initiator_id = CISS_MAX_LOGICAL; 2973 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2974 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2975 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2976 cpi->unit_number = cam_sim_unit(sim); 2977 cpi->bus_id = cam_sim_bus(sim); 2978 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2979 cpi->transport = XPORT_SPI; 2980 cpi->transport_version = 2; 2981 cpi->protocol = PROTO_SCSI; 2982 cpi->protocol_version = SCSI_REV_2; 2983 #if 0 /* XXX swildner */ 2984 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2985 #endif 2986 ccb->ccb_h.status = CAM_REQ_CMP; 2987 break; 2988 } 2989 2990 case XPT_GET_TRAN_SETTINGS: 2991 { 2992 struct ccb_trans_settings *cts = &ccb->cts; 2993 #ifdef CISS_DEBUG 2994 int bus, target; 2995 #endif 2996 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2997 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2998 2999 #ifdef CISS_DEBUG 3000 bus = cam_sim_bus(sim); 3001 target = cts->ccb_h.target_id; 3002 #endif 3003 3004 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3005 /* disconnect always OK */ 3006 cts->protocol = PROTO_SCSI; 3007 cts->protocol_version = SCSI_REV_2; 3008 cts->transport = XPORT_SPI; 3009 cts->transport_version = 2; 3010 3011 spi->valid = CTS_SPI_VALID_DISC; 3012 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3013 3014 scsi->valid = CTS_SCSI_VALID_TQ; 3015 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3016 3017 cts->ccb_h.status = CAM_REQ_CMP; 3018 break; 3019 } 3020 3021 default: /* we can't do this */ 3022 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3023 ccb->ccb_h.status = CAM_REQ_INVALID; 3024 break; 3025 } 3026 3027 xpt_done(ccb); 3028 } 3029 3030 /************************************************************************ 3031 * Handle a CAM SCSI I/O request. 3032 */ 3033 static int 3034 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3035 { 3036 struct ciss_softc *sc; 3037 int bus, target; 3038 struct ciss_request *cr; 3039 struct ciss_command *cc; 3040 int error; 3041 3042 sc = cam_sim_softc(sim); 3043 bus = cam_sim_bus(sim); 3044 target = csio->ccb_h.target_id; 3045 3046 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3047 3048 /* check that the CDB pointer is not to a physical address */ 3049 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3050 debug(3, " CDB pointer is to physical address"); 3051 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3052 } 3053 3054 /* if there is data transfer, it must be to/from a virtual address */ 3055 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3056 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3057 debug(3, " data pointer is to physical address"); 3058 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3059 } 3060 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3061 debug(3, " data has premature s/g setup"); 3062 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3063 } 3064 } 3065 3066 /* abandon aborted ccbs or those that have failed validation */ 3067 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3068 debug(3, "abandoning CCB due to abort/validation failure"); 3069 return(EINVAL); 3070 } 3071 3072 /* handle emulation of some SCSI commands ourself */ 3073 if (ciss_cam_emulate(sc, csio)) 3074 return(0); 3075 3076 /* 3077 * Get a request to manage this command. If we can't, return the 3078 * ccb, freeze the queue and flag so that we unfreeze it when a 3079 * request completes. 3080 */ 3081 if ((error = ciss_get_request(sc, &cr)) != 0) { 3082 xpt_freeze_simq(sim, 1); 3083 sc->ciss_flags |= CISS_FLAG_BUSY; 3084 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3085 return(error); 3086 } 3087 3088 /* 3089 * Build the command. 3090 */ 3091 cc = cr->cr_cc; 3092 cr->cr_data = csio->data_ptr; 3093 cr->cr_length = csio->dxfer_len; 3094 cr->cr_complete = ciss_cam_complete; 3095 cr->cr_private = csio; 3096 3097 /* 3098 * Target the right logical volume. 3099 */ 3100 if (CISS_IS_PHYSICAL(bus)) 3101 cc->header.address = 3102 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3103 else 3104 cc->header.address = 3105 sc->ciss_logical[bus][target].cl_address; 3106 cc->cdb.cdb_length = csio->cdb_len; 3107 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3108 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3109 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3110 cr->cr_flags = CISS_REQ_DATAOUT; 3111 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3112 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3113 cr->cr_flags = CISS_REQ_DATAIN; 3114 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3115 } else { 3116 cr->cr_flags = 0; 3117 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3118 } 3119 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3120 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3121 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3122 } else { 3123 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3124 } 3125 3126 /* 3127 * Submit the request to the adapter. 3128 * 3129 * Note that this may fail if we're unable to map the request (and 3130 * if we ever learn a transport layer other than simple, may fail 3131 * if the adapter rejects the command). 3132 */ 3133 if ((error = ciss_start(cr)) != 0) { 3134 xpt_freeze_simq(sim, 1); 3135 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3136 if (error == EINPROGRESS) { 3137 error = 0; 3138 } else { 3139 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3140 ciss_release_request(cr); 3141 } 3142 return(error); 3143 } 3144 3145 return(0); 3146 } 3147 3148 /************************************************************************ 3149 * Emulate SCSI commands the adapter doesn't handle as we might like. 3150 */ 3151 static int 3152 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3153 { 3154 int bus, target; 3155 3156 target = csio->ccb_h.target_id; 3157 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3158 3159 if (CISS_IS_PHYSICAL(bus)) { 3160 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3161 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3162 xpt_done((union ccb *)csio); 3163 return(1); 3164 } else 3165 return(0); 3166 } 3167 3168 /* 3169 * Handle requests for volumes that don't exist or are not online. 3170 * A selection timeout is slightly better than an illegal request. 3171 * Other errors might be better. 3172 */ 3173 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3174 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3175 xpt_done((union ccb *)csio); 3176 return(1); 3177 } 3178 3179 /* if we have to fake Synchronise Cache */ 3180 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3181 /* 3182 * If this is a Synchronise Cache command, typically issued when 3183 * a device is closed, flush the adapter and complete now. 3184 */ 3185 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3186 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3187 ciss_flush_adapter(sc); 3188 csio->ccb_h.status |= CAM_REQ_CMP; 3189 xpt_done((union ccb *)csio); 3190 return(1); 3191 } 3192 } 3193 3194 return(0); 3195 } 3196 3197 /************************************************************************ 3198 * Check for possibly-completed commands. 3199 */ 3200 static void 3201 ciss_cam_poll(struct cam_sim *sim) 3202 { 3203 cr_qhead_t qh; 3204 struct ciss_softc *sc = cam_sim_softc(sim); 3205 3206 debug_called(2); 3207 3208 STAILQ_INIT(&qh); 3209 if (sc->ciss_perf) 3210 ciss_perf_done(sc, &qh); 3211 else 3212 ciss_done(sc, &qh); 3213 ciss_complete(sc, &qh); 3214 } 3215 3216 /************************************************************************ 3217 * Handle completion of a command - pass results back through the CCB 3218 */ 3219 static void 3220 ciss_cam_complete(struct ciss_request *cr) 3221 { 3222 struct ciss_softc *sc; 3223 struct ciss_command *cc; 3224 struct ciss_error_info *ce; 3225 struct ccb_scsiio *csio; 3226 int scsi_status; 3227 int command_status; 3228 3229 debug_called(2); 3230 3231 sc = cr->cr_sc; 3232 cc = cr->cr_cc; 3233 ce = (struct ciss_error_info *)&(cc->sg[0]); 3234 csio = (struct ccb_scsiio *)cr->cr_private; 3235 3236 /* 3237 * Extract status values from request. 3238 */ 3239 ciss_report_request(cr, &command_status, &scsi_status); 3240 csio->scsi_status = scsi_status; 3241 3242 /* 3243 * Handle specific SCSI status values. 3244 */ 3245 switch(scsi_status) { 3246 /* no status due to adapter error */ 3247 case -1: 3248 debug(0, "adapter error"); 3249 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3250 break; 3251 3252 /* no status due to command completed OK */ 3253 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3254 debug(2, "SCSI_STATUS_OK"); 3255 csio->ccb_h.status |= CAM_REQ_CMP; 3256 break; 3257 3258 /* check condition, sense data included */ 3259 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3260 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3261 ce->sense_length, ce->residual_count); 3262 bzero(&csio->sense_data, SSD_FULL_SIZE); 3263 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3264 if (csio->sense_len > ce->sense_length) 3265 csio->sense_resid = csio->sense_len - ce->sense_length; 3266 else 3267 csio->sense_resid = 0; 3268 csio->resid = ce->residual_count; 3269 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3270 #ifdef CISS_DEBUG 3271 { 3272 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3273 debug(0, "sense key %x", sns->flags & SSD_KEY); 3274 } 3275 #endif 3276 break; 3277 3278 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3279 debug(0, "SCSI_STATUS_BUSY"); 3280 csio->ccb_h.status |= CAM_SCSI_BUSY; 3281 break; 3282 3283 default: 3284 debug(0, "unknown status 0x%x", csio->scsi_status); 3285 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3286 break; 3287 } 3288 3289 /* handle post-command fixup */ 3290 ciss_cam_complete_fixup(sc, csio); 3291 3292 ciss_release_request(cr); 3293 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3294 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3295 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3296 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3297 else 3298 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3299 } 3300 xpt_done((union ccb *)csio); 3301 } 3302 3303 /******************************************************************************** 3304 * Fix up the result of some commands here. 3305 */ 3306 static void 3307 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3308 { 3309 struct scsi_inquiry_data *inq; 3310 struct ciss_ldrive *cl; 3311 uint8_t *cdb; 3312 int bus, target; 3313 3314 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3315 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3316 if (cdb[0] == INQUIRY && 3317 (cdb[1] & SI_EVPD) == 0 && 3318 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3319 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3320 3321 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3322 target = csio->ccb_h.target_id; 3323 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3324 3325 /* 3326 * Don't let hard drives be seen by the DA driver. They will still be 3327 * attached by the PASS driver. 3328 */ 3329 if (CISS_IS_PHYSICAL(bus)) { 3330 if (SID_TYPE(inq) == T_DIRECT) 3331 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3332 return; 3333 } 3334 3335 cl = &sc->ciss_logical[bus][target]; 3336 3337 padstr(inq->vendor, "COMPAQ", 8); 3338 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3339 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3340 } 3341 } 3342 3343 3344 /******************************************************************************** 3345 * Find a peripheral attached at (target) 3346 */ 3347 static struct cam_periph * 3348 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3349 { 3350 struct cam_periph *periph; 3351 struct cam_path *path; 3352 int status; 3353 3354 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3355 target, 0); 3356 if (status == CAM_REQ_CMP) { 3357 periph = cam_periph_find(path, NULL); 3358 xpt_free_path(path); 3359 } else { 3360 periph = NULL; 3361 } 3362 return(periph); 3363 } 3364 3365 /******************************************************************************** 3366 * Name the device at (target) 3367 * 3368 * XXX is this strictly correct? 3369 */ 3370 static int 3371 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3372 { 3373 struct cam_periph *periph; 3374 3375 if (CISS_IS_PHYSICAL(bus)) 3376 return (0); 3377 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3378 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3379 periph->periph_name, periph->unit_number); 3380 return(0); 3381 } 3382 sc->ciss_logical[bus][target].cl_name[0] = 0; 3383 return(ENOENT); 3384 } 3385 3386 /************************************************************************ 3387 * Periodic status monitoring. 3388 */ 3389 static void 3390 ciss_periodic(void *arg) 3391 { 3392 struct ciss_softc *sc = (struct ciss_softc *)arg; 3393 struct ciss_request *cr = NULL; 3394 struct ciss_command *cc = NULL; 3395 int error = 0; 3396 3397 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 3398 debug_called(1); 3399 3400 /* 3401 * Check the adapter heartbeat. 3402 */ 3403 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3404 sc->ciss_heart_attack++; 3405 debug(0, "adapter heart attack in progress 0x%x/%d", 3406 sc->ciss_heartbeat, sc->ciss_heart_attack); 3407 if (sc->ciss_heart_attack == 3) { 3408 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3409 ciss_disable_adapter(sc); 3410 lockmgr(&sc->ciss_lock, LK_RELEASE); 3411 return; 3412 } 3413 } else { 3414 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3415 sc->ciss_heart_attack = 0; 3416 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3417 } 3418 3419 /* 3420 * Send the NOP message and wait for a response. 3421 */ 3422 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3423 cc = cr->cr_cc; 3424 cr->cr_complete = ciss_nop_complete; 3425 cc->cdb.cdb_length = 1; 3426 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3427 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3428 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3429 cc->cdb.timeout = 0; 3430 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3431 3432 if ((error = ciss_start(cr)) != 0) { 3433 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3434 } 3435 } 3436 3437 /* 3438 * If the notify event request has died for some reason, or has 3439 * not started yet, restart it. 3440 */ 3441 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3442 debug(0, "(re)starting Event Notify chain"); 3443 ciss_notify_event(sc); 3444 } 3445 lockmgr(&sc->ciss_lock, LK_RELEASE); 3446 3447 /* 3448 * Reschedule. 3449 */ 3450 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3451 } 3452 3453 static void 3454 ciss_nop_complete(struct ciss_request *cr) 3455 { 3456 struct ciss_softc *sc; 3457 static int first_time = 1; 3458 3459 sc = cr->cr_sc; 3460 if (ciss_report_request(cr, NULL, NULL) != 0) { 3461 if (first_time == 1) { 3462 first_time = 0; 3463 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3464 } 3465 } 3466 3467 ciss_release_request(cr); 3468 } 3469 3470 /************************************************************************ 3471 * Disable the adapter. 3472 * 3473 * The all requests in completed queue is failed with hardware error. 3474 * This will cause failover in a multipath configuration. 3475 */ 3476 static void 3477 ciss_disable_adapter(struct ciss_softc *sc) 3478 { 3479 cr_qhead_t qh; 3480 struct ciss_request *cr; 3481 struct ciss_command *cc; 3482 struct ciss_error_info *ce; 3483 int i; 3484 3485 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3486 pci_disable_busmaster(sc->ciss_dev); 3487 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3488 3489 for (i = 1; i < sc->ciss_max_requests; i++) { 3490 cr = &sc->ciss_request[i]; 3491 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3492 continue; 3493 3494 cc = cr->cr_cc; 3495 ce = (struct ciss_error_info *)&(cc->sg[0]); 3496 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3497 ciss_enqueue_complete(cr, &qh); 3498 } 3499 3500 for (;;) { 3501 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3502 break; 3503 3504 /* 3505 * If the request has a callback, invoke it. 3506 */ 3507 if (cr->cr_complete != NULL) { 3508 cr->cr_complete(cr); 3509 continue; 3510 } 3511 3512 /* 3513 * If someone is sleeping on this request, wake them up. 3514 */ 3515 if (cr->cr_flags & CISS_REQ_SLEEP) { 3516 cr->cr_flags &= ~CISS_REQ_SLEEP; 3517 wakeup(cr); 3518 continue; 3519 } 3520 } 3521 } 3522 3523 /************************************************************************ 3524 * Request a notification response from the adapter. 3525 * 3526 * If (cr) is NULL, this is the first request of the adapter, so 3527 * reset the adapter's message pointer and start with the oldest 3528 * message available. 3529 */ 3530 static void 3531 ciss_notify_event(struct ciss_softc *sc) 3532 { 3533 struct ciss_request *cr; 3534 struct ciss_command *cc; 3535 struct ciss_notify_cdb *cnc; 3536 int error; 3537 3538 debug_called(1); 3539 3540 cr = sc->ciss_periodic_notify; 3541 3542 /* get a request if we don't already have one */ 3543 if (cr == NULL) { 3544 if ((error = ciss_get_request(sc, &cr)) != 0) { 3545 debug(0, "can't get notify event request"); 3546 goto out; 3547 } 3548 sc->ciss_periodic_notify = cr; 3549 cr->cr_complete = ciss_notify_complete; 3550 debug(1, "acquired request %d", cr->cr_tag); 3551 } 3552 3553 /* 3554 * Get a databuffer if we don't already have one, note that the 3555 * adapter command wants a larger buffer than the actual 3556 * structure. 3557 */ 3558 if (cr->cr_data == NULL) { 3559 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3560 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3561 } 3562 3563 /* re-setup the request's command (since we never release it) XXX overkill*/ 3564 ciss_preen_command(cr); 3565 3566 /* (re)build the notify event command */ 3567 cc = cr->cr_cc; 3568 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3569 cc->header.address.physical.bus = 0; 3570 cc->header.address.physical.target = 0; 3571 3572 cc->cdb.cdb_length = sizeof(*cnc); 3573 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3574 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3575 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3576 cc->cdb.timeout = 0; /* no timeout, we hope */ 3577 3578 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3579 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3580 cnc->opcode = CISS_OPCODE_READ; 3581 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3582 cnc->timeout = 0; /* no timeout, we hope */ 3583 cnc->synchronous = 0; 3584 cnc->ordered = 0; 3585 cnc->seek_to_oldest = 0; 3586 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3587 cnc->new_only = 1; 3588 else 3589 cnc->new_only = 0; 3590 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3591 3592 /* submit the request */ 3593 error = ciss_start(cr); 3594 3595 out: 3596 if (error) { 3597 if (cr != NULL) { 3598 if (cr->cr_data != NULL) 3599 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3600 ciss_release_request(cr); 3601 } 3602 sc->ciss_periodic_notify = NULL; 3603 debug(0, "can't submit notify event request"); 3604 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3605 } else { 3606 debug(1, "notify event submitted"); 3607 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3608 } 3609 } 3610 3611 static void 3612 ciss_notify_complete(struct ciss_request *cr) 3613 { 3614 struct ciss_notify *cn; 3615 struct ciss_softc *sc; 3616 int scsi_status; 3617 int command_status; 3618 debug_called(1); 3619 3620 cn = (struct ciss_notify *)cr->cr_data; 3621 sc = cr->cr_sc; 3622 3623 /* 3624 * Report request results, decode status. 3625 */ 3626 ciss_report_request(cr, &command_status, &scsi_status); 3627 3628 /* 3629 * Abort the chain on a fatal error. 3630 * 3631 * XXX which of these are actually errors? 3632 */ 3633 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3634 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3635 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3636 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3637 ciss_name_command_status(command_status)); 3638 ciss_release_request(cr); 3639 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3640 return; 3641 } 3642 3643 /* 3644 * If the adapter gave us a text message, print it. 3645 */ 3646 if (cn->message[0] != 0) 3647 ciss_printf(sc, "*** %.80s\n", cn->message); 3648 3649 debug(0, "notify event class %d subclass %d detail %d", 3650 cn->class, cn->subclass, cn->detail); 3651 3652 /* 3653 * If the response indicates that the notifier has been aborted, 3654 * release the notifier command. 3655 */ 3656 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3657 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3658 (cn->detail == 1)) { 3659 debug(0, "notifier exiting"); 3660 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3661 ciss_release_request(cr); 3662 sc->ciss_periodic_notify = NULL; 3663 wakeup(&sc->ciss_periodic_notify); 3664 } else { 3665 /* Handle notify events in a kernel thread */ 3666 ciss_enqueue_notify(cr); 3667 sc->ciss_periodic_notify = NULL; 3668 wakeup(&sc->ciss_periodic_notify); 3669 wakeup(&sc->ciss_notify); 3670 } 3671 /* 3672 * Send a new notify event command, if we're not aborting. 3673 */ 3674 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3675 ciss_notify_event(sc); 3676 } 3677 } 3678 3679 /************************************************************************ 3680 * Abort the Notify Event chain. 3681 * 3682 * Note that we can't just abort the command in progress; we have to 3683 * explicitly issue an Abort Notify Event command in order for the 3684 * adapter to clean up correctly. 3685 * 3686 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3687 * the chain will not restart itself. 3688 */ 3689 static int 3690 ciss_notify_abort(struct ciss_softc *sc) 3691 { 3692 struct ciss_request *cr; 3693 struct ciss_command *cc; 3694 struct ciss_notify_cdb *cnc; 3695 int error, command_status, scsi_status; 3696 3697 debug_called(1); 3698 3699 cr = NULL; 3700 error = 0; 3701 3702 /* verify that there's an outstanding command */ 3703 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3704 goto out; 3705 3706 /* get a command to issue the abort with */ 3707 if ((error = ciss_get_request(sc, &cr))) 3708 goto out; 3709 3710 /* get a buffer for the result */ 3711 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3712 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3713 3714 /* build the CDB */ 3715 cc = cr->cr_cc; 3716 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3717 cc->header.address.physical.bus = 0; 3718 cc->header.address.physical.target = 0; 3719 cc->cdb.cdb_length = sizeof(*cnc); 3720 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3721 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3722 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3723 cc->cdb.timeout = 0; /* no timeout, we hope */ 3724 3725 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3726 bzero(cnc, sizeof(*cnc)); 3727 cnc->opcode = CISS_OPCODE_WRITE; 3728 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3729 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3730 3731 ciss_print_request(cr); 3732 3733 /* 3734 * Submit the request and wait for it to complete. 3735 */ 3736 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3737 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3738 goto out; 3739 } 3740 3741 /* 3742 * Check response. 3743 */ 3744 ciss_report_request(cr, &command_status, &scsi_status); 3745 switch(command_status) { 3746 case CISS_CMD_STATUS_SUCCESS: 3747 break; 3748 case CISS_CMD_STATUS_INVALID_COMMAND: 3749 /* 3750 * Some older adapters don't support the CISS version of this 3751 * command. Fall back to using the BMIC version. 3752 */ 3753 error = ciss_notify_abort_bmic(sc); 3754 if (error != 0) 3755 goto out; 3756 break; 3757 3758 case CISS_CMD_STATUS_TARGET_STATUS: 3759 /* 3760 * This can happen if the adapter thinks there wasn't an outstanding 3761 * Notify Event command but we did. We clean up here. 3762 */ 3763 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3764 if (sc->ciss_periodic_notify != NULL) 3765 ciss_release_request(sc->ciss_periodic_notify); 3766 error = 0; 3767 goto out; 3768 } 3769 /* FALLTHROUGH */ 3770 3771 default: 3772 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3773 ciss_name_command_status(command_status)); 3774 error = EIO; 3775 goto out; 3776 } 3777 3778 /* 3779 * Sleep waiting for the notifier command to complete. Note 3780 * that if it doesn't, we may end up in a bad situation, since 3781 * the adapter may deliver it later. Also note that the adapter 3782 * requires the Notify Event command to be cancelled in order to 3783 * maintain internal bookkeeping. 3784 */ 3785 while (sc->ciss_periodic_notify != NULL) { 3786 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5); 3787 if (error == EWOULDBLOCK) { 3788 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3789 break; 3790 } 3791 } 3792 3793 out: 3794 /* release the cancel request */ 3795 if (cr != NULL) { 3796 if (cr->cr_data != NULL) 3797 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3798 ciss_release_request(cr); 3799 } 3800 if (error == 0) 3801 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3802 return(error); 3803 } 3804 3805 /************************************************************************ 3806 * Abort the Notify Event chain using a BMIC command. 3807 */ 3808 static int 3809 ciss_notify_abort_bmic(struct ciss_softc *sc) 3810 { 3811 struct ciss_request *cr; 3812 int error, command_status; 3813 3814 debug_called(1); 3815 3816 cr = NULL; 3817 error = 0; 3818 3819 /* verify that there's an outstanding command */ 3820 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3821 goto out; 3822 3823 /* 3824 * Build a BMIC command to cancel the Notify on Event command. 3825 * 3826 * Note that we are sending a CISS opcode here. Odd. 3827 */ 3828 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3829 NULL, 0)) != 0) 3830 goto out; 3831 3832 /* 3833 * Submit the request and wait for it to complete. 3834 */ 3835 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3836 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3837 goto out; 3838 } 3839 3840 /* 3841 * Check response. 3842 */ 3843 ciss_report_request(cr, &command_status, NULL); 3844 switch(command_status) { 3845 case CISS_CMD_STATUS_SUCCESS: 3846 break; 3847 default: 3848 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3849 ciss_name_command_status(command_status)); 3850 error = EIO; 3851 goto out; 3852 } 3853 3854 out: 3855 if (cr != NULL) 3856 ciss_release_request(cr); 3857 return(error); 3858 } 3859 3860 /************************************************************************ 3861 * Handle rescanning all the logical volumes when a notify event 3862 * causes the drives to come online or offline. 3863 */ 3864 static void 3865 ciss_notify_rescan_logical(struct ciss_softc *sc) 3866 { 3867 struct ciss_lun_report *cll; 3868 struct ciss_ldrive *ld; 3869 int i, j, ndrives; 3870 3871 /* 3872 * We must rescan all logical volumes to get the right logical 3873 * drive address. 3874 */ 3875 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3876 CISS_MAX_LOGICAL); 3877 if (cll == NULL) 3878 return; 3879 3880 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3881 3882 /* 3883 * Delete any of the drives which were destroyed by the 3884 * firmware. 3885 */ 3886 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3887 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3888 ld = &sc->ciss_logical[i][j]; 3889 3890 if (ld->cl_update == 0) 3891 continue; 3892 3893 if (ld->cl_status != CISS_LD_ONLINE) { 3894 ciss_cam_rescan_target(sc, i, j); 3895 ld->cl_update = 0; 3896 if (ld->cl_ldrive) 3897 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3898 if (ld->cl_lstatus) 3899 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3900 3901 ld->cl_ldrive = NULL; 3902 ld->cl_lstatus = NULL; 3903 } 3904 } 3905 } 3906 3907 /* 3908 * Scan for new drives. 3909 */ 3910 for (i = 0; i < ndrives; i++) { 3911 int bus, target; 3912 3913 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3914 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3915 ld = &sc->ciss_logical[bus][target]; 3916 3917 if (ld->cl_update == 0) 3918 continue; 3919 3920 ld->cl_update = 0; 3921 ld->cl_address = cll->lun[i]; 3922 ld->cl_controller = &sc->ciss_controllers[bus]; 3923 if (ciss_identify_logical(sc, ld) == 0) { 3924 ciss_cam_rescan_target(sc, bus, target); 3925 } 3926 } 3927 kfree(cll, CISS_MALLOC_CLASS); 3928 } 3929 3930 /************************************************************************ 3931 * Handle a notify event relating to the status of a logical drive. 3932 * 3933 * XXX need to be able to defer some of these to properly handle 3934 * calling the "ID Physical drive" command, unless the 'extended' 3935 * drive IDs are always in BIG_MAP format. 3936 */ 3937 static void 3938 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3939 { 3940 struct ciss_ldrive *ld; 3941 int ostatus, bus, target; 3942 3943 debug_called(2); 3944 3945 bus = cn->device.physical.bus; 3946 target = cn->data.logical_status.logical_drive; 3947 ld = &sc->ciss_logical[bus][target]; 3948 3949 switch (cn->subclass) { 3950 case CISS_NOTIFY_LOGICAL_STATUS: 3951 switch (cn->detail) { 3952 case 0: 3953 ciss_name_device(sc, bus, target); 3954 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3955 cn->data.logical_status.logical_drive, ld->cl_name, 3956 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3957 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3958 cn->data.logical_status.spare_state, 3959 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3960 3961 /* 3962 * Update our idea of the drive's status. 3963 */ 3964 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3965 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3966 if (ld->cl_lstatus != NULL) 3967 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3968 3969 /* 3970 * Have CAM rescan the drive if its status has changed. 3971 */ 3972 if (ostatus != ld->cl_status) { 3973 ld->cl_update = 1; 3974 ciss_notify_rescan_logical(sc); 3975 } 3976 3977 break; 3978 3979 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3980 ciss_name_device(sc, bus, target); 3981 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3982 cn->data.logical_status.logical_drive, ld->cl_name); 3983 ciss_accept_media(sc, ld); 3984 3985 ld->cl_update = 1; 3986 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3987 ciss_notify_rescan_logical(sc); 3988 break; 3989 3990 case 2: 3991 case 3: 3992 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3993 cn->data.rebuild_aborted.logical_drive, 3994 ld->cl_name, 3995 (cn->detail == 2) ? "read" : "write"); 3996 break; 3997 } 3998 break; 3999 4000 case CISS_NOTIFY_LOGICAL_ERROR: 4001 if (cn->detail == 0) { 4002 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4003 cn->data.io_error.logical_drive, 4004 ld->cl_name, 4005 cn->data.io_error.failure_bus, 4006 cn->data.io_error.failure_drive); 4007 /* XXX should we take the drive down at this point, or will we be told? */ 4008 } 4009 break; 4010 4011 case CISS_NOTIFY_LOGICAL_SURFACE: 4012 if (cn->detail == 0) 4013 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4014 cn->data.consistency_completed.logical_drive, 4015 ld->cl_name); 4016 break; 4017 } 4018 } 4019 4020 /************************************************************************ 4021 * Handle a notify event relating to the status of a physical drive. 4022 */ 4023 static void 4024 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4025 { 4026 } 4027 4028 /************************************************************************ 4029 * Handle a notify event relating to the status of a physical drive. 4030 */ 4031 static void 4032 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4033 { 4034 struct ciss_lun_report *cll = NULL; 4035 int bus, target; 4036 4037 switch (cn->subclass) { 4038 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4039 case CISS_NOTIFY_HOTPLUG_NONDISK: 4040 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4041 target = 4042 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4043 4044 if (cn->detail == 0) { 4045 /* 4046 * Mark the device offline so that it'll start producing selection 4047 * timeouts to the upper layer. 4048 */ 4049 if ((bus >= 0) && (target >= 0)) 4050 sc->ciss_physical[bus][target].cp_online = 0; 4051 } else { 4052 /* 4053 * Rescan the physical lun list for new items 4054 */ 4055 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4056 CISS_MAX_PHYSICAL); 4057 if (cll == NULL) { 4058 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4059 break; 4060 } 4061 ciss_filter_physical(sc, cll); 4062 } 4063 break; 4064 4065 default: 4066 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4067 return; 4068 } 4069 4070 if (cll != NULL) 4071 kfree(cll, CISS_MALLOC_CLASS); 4072 } 4073 4074 /************************************************************************ 4075 * Handle deferred processing of notify events. Notify events may need 4076 * sleep which is unsafe during an interrupt. 4077 */ 4078 static void 4079 ciss_notify_thread(void *arg) 4080 { 4081 struct ciss_softc *sc; 4082 struct ciss_request *cr; 4083 struct ciss_notify *cn; 4084 4085 sc = (struct ciss_softc *)arg; 4086 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4087 4088 for (;;) { 4089 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4090 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4091 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0); 4092 } 4093 4094 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4095 break; 4096 4097 cr = ciss_dequeue_notify(sc); 4098 4099 if (cr == NULL) 4100 panic("cr null"); 4101 cn = (struct ciss_notify *)cr->cr_data; 4102 4103 switch (cn->class) { 4104 case CISS_NOTIFY_HOTPLUG: 4105 ciss_notify_hotplug(sc, cn); 4106 break; 4107 case CISS_NOTIFY_LOGICAL: 4108 ciss_notify_logical(sc, cn); 4109 break; 4110 case CISS_NOTIFY_PHYSICAL: 4111 ciss_notify_physical(sc, cn); 4112 break; 4113 } 4114 4115 ciss_release_request(cr); 4116 4117 } 4118 sc->ciss_notify_thread = NULL; 4119 wakeup(&sc->ciss_notify_thread); 4120 4121 lockmgr(&sc->ciss_lock, LK_RELEASE); 4122 kthread_exit(); 4123 } 4124 4125 /************************************************************************ 4126 * Start the notification kernel thread. 4127 */ 4128 static void 4129 ciss_spawn_notify_thread(struct ciss_softc *sc) 4130 { 4131 4132 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 4133 &sc->ciss_notify_thread, "ciss_notify%d", 4134 device_get_unit(sc->ciss_dev))) 4135 panic("Could not create notify thread\n"); 4136 } 4137 4138 /************************************************************************ 4139 * Kill the notification kernel thread. 4140 */ 4141 static void 4142 ciss_kill_notify_thread(struct ciss_softc *sc) 4143 { 4144 4145 if (sc->ciss_notify_thread == NULL) 4146 return; 4147 4148 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4149 wakeup(&sc->ciss_notify); 4150 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0); 4151 } 4152 4153 /************************************************************************ 4154 * Print a request. 4155 */ 4156 static void 4157 ciss_print_request(struct ciss_request *cr) 4158 { 4159 struct ciss_softc *sc; 4160 struct ciss_command *cc; 4161 int i; 4162 char hexstr[HEX_NCPYLEN(CISS_CDB_BUFFER_SIZE)]; 4163 4164 sc = cr->cr_sc; 4165 cc = cr->cr_cc; 4166 4167 ciss_printf(sc, "REQUEST @ %p\n", cr); 4168 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4169 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4170 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4171 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4172 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4173 switch(cc->header.address.mode.mode) { 4174 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4175 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4176 ciss_printf(sc, " physical bus %d target %d\n", 4177 cc->header.address.physical.bus, cc->header.address.physical.target); 4178 break; 4179 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4180 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4181 break; 4182 } 4183 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4184 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4185 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4186 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4187 cc->cdb.cdb_length, 4188 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4189 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4190 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4191 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4192 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4193 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4194 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4195 ciss_printf(sc, " %s\n", hexncpy(&cc->cdb.cdb[0], cc->cdb.cdb_length, 4196 hexstr, HEX_NCPYLEN(cc->cdb.cdb_length), " ")); 4197 4198 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4199 /* XXX print error info */ 4200 } else { 4201 /* since we don't use chained s/g, don't support it here */ 4202 for (i = 0; i < cc->header.sg_in_list; i++) { 4203 if ((i % 4) == 0) 4204 ciss_printf(sc, " "); 4205 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4206 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4207 kprintf("\n"); 4208 } 4209 } 4210 } 4211 4212 /************************************************************************ 4213 * Print information about the status of a logical drive. 4214 */ 4215 static void 4216 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4217 { 4218 int bus, target, i; 4219 4220 if (ld->cl_lstatus == NULL) { 4221 kprintf("does not exist\n"); 4222 return; 4223 } 4224 4225 /* print drive status */ 4226 switch(ld->cl_lstatus->status) { 4227 case CISS_LSTATUS_OK: 4228 kprintf("online\n"); 4229 break; 4230 case CISS_LSTATUS_INTERIM_RECOVERY: 4231 kprintf("in interim recovery mode\n"); 4232 break; 4233 case CISS_LSTATUS_READY_RECOVERY: 4234 kprintf("ready to begin recovery\n"); 4235 break; 4236 case CISS_LSTATUS_RECOVERING: 4237 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4238 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4239 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4240 bus, target, ld->cl_lstatus->blocks_to_recover); 4241 break; 4242 case CISS_LSTATUS_EXPANDING: 4243 kprintf("being expanded, %u blocks remaining\n", 4244 ld->cl_lstatus->blocks_to_recover); 4245 break; 4246 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4247 kprintf("queued for expansion\n"); 4248 break; 4249 case CISS_LSTATUS_FAILED: 4250 kprintf("queued for expansion\n"); 4251 break; 4252 case CISS_LSTATUS_WRONG_PDRIVE: 4253 kprintf("wrong physical drive inserted\n"); 4254 break; 4255 case CISS_LSTATUS_MISSING_PDRIVE: 4256 kprintf("missing a needed physical drive\n"); 4257 break; 4258 case CISS_LSTATUS_BECOMING_READY: 4259 kprintf("becoming ready\n"); 4260 break; 4261 } 4262 4263 /* print failed physical drives */ 4264 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4265 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4266 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4267 if (bus == -1) 4268 continue; 4269 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4270 ld->cl_lstatus->drive_failure_map[i]); 4271 } 4272 } 4273 4274 #ifdef CISS_DEBUG 4275 #include "opt_ddb.h" 4276 #ifdef DDB 4277 #include <ddb/ddb.h> 4278 /************************************************************************ 4279 * Print information about the controller/driver. 4280 */ 4281 static void 4282 ciss_print_adapter(struct ciss_softc *sc) 4283 { 4284 int i, j; 4285 4286 ciss_printf(sc, "ADAPTER:\n"); 4287 for (i = 0; i < CISSQ_COUNT; i++) { 4288 ciss_printf(sc, "%s %d/%d\n", 4289 i == 0 ? "free" : 4290 i == 1 ? "busy" : "complete", 4291 sc->ciss_qstat[i].q_length, 4292 sc->ciss_qstat[i].q_max); 4293 } 4294 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4295 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4296 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4297 4298 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4299 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4300 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4301 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4302 } 4303 } 4304 4305 /* XXX Should physical drives be printed out here? */ 4306 4307 for (i = 1; i < sc->ciss_max_requests; i++) 4308 ciss_print_request(sc->ciss_request + i); 4309 } 4310 4311 /* DDB hook */ 4312 DB_COMMAND(ciss_prt, db_ciss_prt) 4313 { 4314 struct ciss_softc *sc; 4315 4316 sc = devclass_get_softc(devclass_find("ciss"), 0); 4317 if (sc == NULL) { 4318 kprintf("no ciss controllers\n"); 4319 } else { 4320 ciss_print_adapter(sc); 4321 } 4322 } 4323 #endif 4324 #endif 4325 4326 /************************************************************************ 4327 * Return a name for a logical drive status value. 4328 */ 4329 static const char * 4330 ciss_name_ldrive_status(int status) 4331 { 4332 switch (status) { 4333 case CISS_LSTATUS_OK: 4334 return("OK"); 4335 case CISS_LSTATUS_FAILED: 4336 return("failed"); 4337 case CISS_LSTATUS_NOT_CONFIGURED: 4338 return("not configured"); 4339 case CISS_LSTATUS_INTERIM_RECOVERY: 4340 return("interim recovery"); 4341 case CISS_LSTATUS_READY_RECOVERY: 4342 return("ready for recovery"); 4343 case CISS_LSTATUS_RECOVERING: 4344 return("recovering"); 4345 case CISS_LSTATUS_WRONG_PDRIVE: 4346 return("wrong physical drive inserted"); 4347 case CISS_LSTATUS_MISSING_PDRIVE: 4348 return("missing physical drive"); 4349 case CISS_LSTATUS_EXPANDING: 4350 return("expanding"); 4351 case CISS_LSTATUS_BECOMING_READY: 4352 return("becoming ready"); 4353 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4354 return("queued for expansion"); 4355 } 4356 return("unknown status"); 4357 } 4358 4359 /************************************************************************ 4360 * Return an online/offline/nonexistent value for a logical drive 4361 * status value. 4362 */ 4363 static int 4364 ciss_decode_ldrive_status(int status) 4365 { 4366 switch(status) { 4367 case CISS_LSTATUS_NOT_CONFIGURED: 4368 return(CISS_LD_NONEXISTENT); 4369 4370 case CISS_LSTATUS_OK: 4371 case CISS_LSTATUS_INTERIM_RECOVERY: 4372 case CISS_LSTATUS_READY_RECOVERY: 4373 case CISS_LSTATUS_RECOVERING: 4374 case CISS_LSTATUS_EXPANDING: 4375 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4376 return(CISS_LD_ONLINE); 4377 4378 case CISS_LSTATUS_FAILED: 4379 case CISS_LSTATUS_WRONG_PDRIVE: 4380 case CISS_LSTATUS_MISSING_PDRIVE: 4381 case CISS_LSTATUS_BECOMING_READY: 4382 default: 4383 return(CISS_LD_OFFLINE); 4384 } 4385 } 4386 4387 4388 /************************************************************************ 4389 * Return a name for a logical drive's organisation. 4390 */ 4391 static const char * 4392 ciss_name_ldrive_org(int org) 4393 { 4394 switch(org) { 4395 case CISS_LDRIVE_RAID0: 4396 return("RAID 0"); 4397 case CISS_LDRIVE_RAID1: 4398 return("RAID 1(1+0)"); 4399 case CISS_LDRIVE_RAID4: 4400 return("RAID 4"); 4401 case CISS_LDRIVE_RAID5: 4402 return("RAID 5"); 4403 case CISS_LDRIVE_RAID51: 4404 return("RAID 5+1"); 4405 case CISS_LDRIVE_RAIDADG: 4406 return("RAID ADG"); 4407 } 4408 return("unknown"); 4409 } 4410 4411 /************************************************************************ 4412 * Return a name for a command status value. 4413 */ 4414 static const char * 4415 ciss_name_command_status(int status) 4416 { 4417 switch(status) { 4418 case CISS_CMD_STATUS_SUCCESS: 4419 return("success"); 4420 case CISS_CMD_STATUS_TARGET_STATUS: 4421 return("target status"); 4422 case CISS_CMD_STATUS_DATA_UNDERRUN: 4423 return("data underrun"); 4424 case CISS_CMD_STATUS_DATA_OVERRUN: 4425 return("data overrun"); 4426 case CISS_CMD_STATUS_INVALID_COMMAND: 4427 return("invalid command"); 4428 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4429 return("protocol error"); 4430 case CISS_CMD_STATUS_HARDWARE_ERROR: 4431 return("hardware error"); 4432 case CISS_CMD_STATUS_CONNECTION_LOST: 4433 return("connection lost"); 4434 case CISS_CMD_STATUS_ABORTED: 4435 return("aborted"); 4436 case CISS_CMD_STATUS_ABORT_FAILED: 4437 return("abort failed"); 4438 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4439 return("unsolicited abort"); 4440 case CISS_CMD_STATUS_TIMEOUT: 4441 return("timeout"); 4442 case CISS_CMD_STATUS_UNABORTABLE: 4443 return("unabortable"); 4444 } 4445 return("unknown status"); 4446 } 4447 4448 /************************************************************************ 4449 * Handle an open on the control device. 4450 */ 4451 static int 4452 ciss_open(struct dev_open_args *ap) 4453 { 4454 cdev_t dev = ap->a_head.a_dev; 4455 struct ciss_softc *sc; 4456 4457 debug_called(1); 4458 4459 sc = (struct ciss_softc *)dev->si_drv1; 4460 4461 /* we might want to veto if someone already has us open */ 4462 4463 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4464 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4465 lockmgr(&sc->ciss_lock, LK_RELEASE); 4466 return(0); 4467 } 4468 4469 /************************************************************************ 4470 * Handle the last close on the control device. 4471 */ 4472 static int 4473 ciss_close(struct dev_close_args *ap) 4474 { 4475 cdev_t dev = ap->a_head.a_dev; 4476 struct ciss_softc *sc; 4477 4478 debug_called(1); 4479 4480 sc = (struct ciss_softc *)dev->si_drv1; 4481 4482 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4483 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4484 lockmgr(&sc->ciss_lock, LK_RELEASE); 4485 return (0); 4486 } 4487 4488 /******************************************************************************** 4489 * Handle adapter-specific control operations. 4490 * 4491 * Note that the API here is compatible with the Linux driver, in order to 4492 * simplify the porting of Compaq's userland tools. 4493 */ 4494 static int 4495 ciss_ioctl(struct dev_ioctl_args *ap) 4496 { 4497 caddr_t addr = ap->a_data; 4498 cdev_t dev = ap->a_head.a_dev; 4499 u_long cmd = ap->a_cmd; 4500 struct ciss_softc *sc; 4501 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4502 #ifdef __x86_64__ 4503 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4504 IOCTL_Command_struct ioc_swab; 4505 #endif 4506 int error; 4507 4508 debug_called(1); 4509 4510 sc = (struct ciss_softc *)dev->si_drv1; 4511 error = 0; 4512 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4513 4514 switch(cmd) { 4515 case CCISS_GETQSTATS: 4516 { 4517 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4518 4519 switch (cr->cs_item) { 4520 case CISSQ_FREE: 4521 case CISSQ_NOTIFY: 4522 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4523 sizeof(struct ciss_qstat)); 4524 break; 4525 default: 4526 error = ENOIOCTL; 4527 break; 4528 } 4529 4530 break; 4531 } 4532 4533 case CCISS_GETPCIINFO: 4534 { 4535 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4536 4537 pis->bus = pci_get_bus(sc->ciss_dev); 4538 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4539 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4540 pci_get_subdevice(sc->ciss_dev); 4541 4542 break; 4543 } 4544 4545 case CCISS_GETINTINFO: 4546 { 4547 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4548 4549 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4550 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4551 4552 break; 4553 } 4554 4555 case CCISS_SETINTINFO: 4556 { 4557 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4558 4559 if ((cis->delay == 0) && (cis->count == 0)) { 4560 error = EINVAL; 4561 break; 4562 } 4563 4564 /* 4565 * XXX apparently this is only safe if the controller is idle, 4566 * we should suspend it before doing this. 4567 */ 4568 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4569 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4570 4571 if (ciss_update_config(sc)) 4572 error = EIO; 4573 4574 /* XXX resume the controller here */ 4575 break; 4576 } 4577 4578 case CCISS_GETNODENAME: 4579 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4580 sizeof(NodeName_type)); 4581 break; 4582 4583 case CCISS_SETNODENAME: 4584 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4585 sizeof(NodeName_type)); 4586 if (ciss_update_config(sc)) 4587 error = EIO; 4588 break; 4589 4590 case CCISS_GETHEARTBEAT: 4591 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4592 break; 4593 4594 case CCISS_GETBUSTYPES: 4595 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4596 break; 4597 4598 case CCISS_GETFIRMVER: 4599 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4600 sizeof(FirmwareVer_type)); 4601 break; 4602 4603 case CCISS_GETDRIVERVER: 4604 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4605 break; 4606 4607 case CCISS_REVALIDVOLS: 4608 /* 4609 * This is a bit ugly; to do it "right" we really need 4610 * to find any disks that have changed, kick CAM off them, 4611 * then rescan only these disks. It'd be nice if they 4612 * a) told us which disk(s) they were going to play with, 4613 * and b) which ones had arrived. 8( 4614 */ 4615 break; 4616 4617 #ifdef __x86_64__ 4618 case CCISS_PASSTHRU32: 4619 ioc_swab.LUN_info = ioc32->LUN_info; 4620 ioc_swab.Request = ioc32->Request; 4621 ioc_swab.error_info = ioc32->error_info; 4622 ioc_swab.buf_size = ioc32->buf_size; 4623 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4624 ioc = &ioc_swab; 4625 /* FALLTHROUGH */ 4626 #endif 4627 4628 case CCISS_PASSTHRU: 4629 error = ciss_user_command(sc, ioc); 4630 break; 4631 4632 default: 4633 debug(0, "unknown ioctl 0x%lx", cmd); 4634 4635 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4636 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4637 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4638 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4639 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4640 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4641 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4642 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4643 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4644 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4645 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4646 4647 error = ENOIOCTL; 4648 break; 4649 } 4650 4651 lockmgr(&sc->ciss_lock, LK_RELEASE); 4652 return(error); 4653 } 4654