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, D_MPSAFE }, 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_mp(&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_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 563 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 564 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 565 } 566 567 /************************************************************************ 568 * Perform PCI-specific attachment actions. 569 */ 570 static int 571 ciss_init_pci(struct ciss_softc *sc) 572 { 573 uintptr_t cbase, csize, cofs; 574 uint32_t method, supported_methods; 575 int error, sqmask, i; 576 void *intr; 577 int use_msi; 578 u_int irq_flags; 579 580 debug_called(1); 581 582 /* 583 * Work out adapter type. 584 */ 585 i = ciss_lookup(sc->ciss_dev); 586 if (i < 0) { 587 ciss_printf(sc, "unknown adapter type\n"); 588 return (ENXIO); 589 } 590 591 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 592 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 593 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 594 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 595 } else { 596 /* 597 * XXX Big hammer, masks/unmasks all possible interrupts. This should 598 * work on all hardware variants. Need to add code to handle the 599 * "controller crashed" interupt bit that this unmasks. 600 */ 601 sqmask = ~0; 602 } 603 604 /* 605 * Allocate register window first (we need this to find the config 606 * struct). 607 */ 608 error = ENXIO; 609 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 610 if ((sc->ciss_regs_resource = 611 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 612 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 613 ciss_printf(sc, "can't allocate register window\n"); 614 return(ENXIO); 615 } 616 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 617 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 618 619 /* 620 * Find the BAR holding the config structure. If it's not the one 621 * we already mapped for registers, map it too. 622 */ 623 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 624 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 625 if ((sc->ciss_cfg_resource = 626 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 627 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 628 ciss_printf(sc, "can't allocate config window\n"); 629 return(ENXIO); 630 } 631 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 632 csize = rman_get_end(sc->ciss_cfg_resource) - 633 rman_get_start(sc->ciss_cfg_resource) + 1; 634 } else { 635 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 636 csize = rman_get_end(sc->ciss_regs_resource) - 637 rman_get_start(sc->ciss_regs_resource) + 1; 638 } 639 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 640 641 /* 642 * Use the base/size/offset values we just calculated to 643 * sanity-check the config structure. If it's OK, point to it. 644 */ 645 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 646 ciss_printf(sc, "config table outside window\n"); 647 return(ENXIO); 648 } 649 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 650 debug(1, "config struct at %p", sc->ciss_cfg); 651 652 /* 653 * Calculate the number of request structures/commands we are 654 * going to provide for this adapter. 655 */ 656 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 657 658 /* 659 * Validate the config structure. If we supported other transport 660 * methods, we could select amongst them at this point in time. 661 */ 662 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 663 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 664 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 665 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 666 return(ENXIO); 667 } 668 669 /* 670 * Select the mode of operation, prefer Performant. 671 */ 672 if (!(sc->ciss_cfg->supported_methods & 673 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 674 ciss_printf(sc, "No supported transport layers: 0x%x\n", 675 sc->ciss_cfg->supported_methods); 676 } 677 678 switch (ciss_force_transport) { 679 case 1: 680 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 681 break; 682 case 2: 683 supported_methods = CISS_TRANSPORT_METHOD_PERF; 684 break; 685 default: 686 supported_methods = sc->ciss_cfg->supported_methods; 687 break; 688 } 689 690 setup: 691 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 692 method = CISS_TRANSPORT_METHOD_PERF; 693 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 694 sc->ciss_cfg->transport_offset); 695 if (ciss_init_perf(sc)) { 696 supported_methods &= ~method; 697 goto setup; 698 } 699 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 700 method = CISS_TRANSPORT_METHOD_SIMPLE; 701 } else { 702 ciss_printf(sc, "No supported transport methods: 0x%x\n", 703 sc->ciss_cfg->supported_methods); 704 return(ENXIO); 705 } 706 707 /* 708 * Tell it we're using the low 4GB of RAM. Set the default interrupt 709 * coalescing options. 710 */ 711 sc->ciss_cfg->requested_method = method; 712 sc->ciss_cfg->command_physlimit = 0; 713 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 714 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 715 716 #ifdef __i386__ 717 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 718 #endif 719 720 if (ciss_update_config(sc)) { 721 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 722 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 723 return(ENXIO); 724 } 725 if ((sc->ciss_cfg->active_method & method) == 0) { 726 supported_methods &= ~method; 727 if (supported_methods == 0) { 728 ciss_printf(sc, "adapter refuses to go into available transports " 729 "mode (0x%x, 0x%x)\n", supported_methods, 730 sc->ciss_cfg->active_method); 731 return(ENXIO); 732 } else 733 goto setup; 734 } 735 736 /* 737 * Wait for the adapter to come ready. 738 */ 739 if ((error = ciss_wait_adapter(sc)) != 0) 740 return(error); 741 742 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 743 * interrupts have a rid of 0, this will be overridden if MSIX is used. 744 */ 745 sc->ciss_irq_rid[0] = 0; 746 if (method == CISS_TRANSPORT_METHOD_PERF) { 747 ciss_printf(sc, "PERFORMANT Transport\n"); 748 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 749 intr = ciss_perf_msi_intr; 750 } else { 751 intr = ciss_perf_intr; 752 } 753 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 754 * Unfortunately, there is no good way to know if this is a SAS 755 * controller. Hopefully enabling this bit universally will work OK. 756 * It seems to work fine for SA6i controllers. 757 */ 758 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 759 760 } else { 761 ciss_printf(sc, "SIMPLE Transport\n"); 762 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 763 if (ciss_force_interrupt == 2) 764 /* If this fails, we automatically revert to INTx */ 765 ciss_setup_msix(sc); 766 sc->ciss_perf = NULL; 767 intr = ciss_intr; 768 sc->ciss_interrupt_mask = sqmask; 769 } 770 /* 771 * Turn off interrupts before we go routing anything. 772 */ 773 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 774 775 /* 776 * Allocate and set up our interrupt. 777 */ 778 #ifdef __DragonFly__ /* DragonFly specific MSI setup */ 779 use_msi = (intr == ciss_perf_msi_intr); 780 #endif 781 sc->ciss_irq_rid[0] = 0; 782 sc->ciss_irq_type = pci_alloc_1intr(sc->ciss_dev, use_msi, 783 &sc->ciss_irq_rid[0], &irq_flags); 784 if ((sc->ciss_irq_resource = 785 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 786 irq_flags)) == NULL) { 787 ciss_printf(sc, "can't allocate interrupt\n"); 788 return(ENXIO); 789 } 790 791 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 792 INTR_MPSAFE, intr, sc, 793 &sc->ciss_intr, NULL)) { 794 ciss_printf(sc, "can't set up interrupt\n"); 795 return(ENXIO); 796 } 797 798 /* 799 * Allocate the parent bus DMA tag appropriate for our PCI 800 * interface. 801 * 802 * Note that "simple" adapters can only address within a 32-bit 803 * span. 804 */ 805 if (bus_dma_tag_create(NULL, /* PCI parent */ 806 1, 0, /* alignment, boundary */ 807 BUS_SPACE_MAXADDR, /* lowaddr */ 808 BUS_SPACE_MAXADDR, /* highaddr */ 809 NULL, NULL, /* filter, filterarg */ 810 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 811 CISS_MAX_SG_ELEMENTS, /* nsegments */ 812 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 813 0, /* flags */ 814 &sc->ciss_parent_dmat)) { 815 ciss_printf(sc, "can't allocate parent DMA tag\n"); 816 return(ENOMEM); 817 } 818 819 /* 820 * Create DMA tag for mapping buffers into adapter-addressable 821 * space. 822 */ 823 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 824 1, 0, /* alignment, boundary */ 825 BUS_SPACE_MAXADDR, /* lowaddr */ 826 BUS_SPACE_MAXADDR, /* highaddr */ 827 NULL, NULL, /* filter, filterarg */ 828 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 829 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 830 BUS_DMA_ALLOCNOW, /* flags */ 831 &sc->ciss_buffer_dmat)) { 832 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 833 return(ENOMEM); 834 } 835 return(0); 836 } 837 838 /************************************************************************ 839 * Setup MSI/MSIX operation (Performant only) 840 * Four interrupts are available, but we only use 1 right now. If MSI-X 841 * isn't avaialble, try using MSI instead. 842 */ 843 static int 844 ciss_setup_msix(struct ciss_softc *sc) 845 { 846 int val, i; 847 848 /* Weed out devices that don't actually support MSI */ 849 i = ciss_lookup(sc->ciss_dev); 850 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 851 return (EINVAL); 852 853 #if 0 /* XXX swildner */ 854 /* 855 * Only need to use the minimum number of MSI vectors, as the driver 856 * doesn't support directed MSIX interrupts. 857 */ 858 val = pci_msix_count(sc->ciss_dev); 859 if (val < CISS_MSI_COUNT) { 860 val = pci_msi_count(sc->ciss_dev); 861 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 862 if (val < CISS_MSI_COUNT) 863 return (EINVAL); 864 } 865 val = MIN(val, CISS_MSI_COUNT); 866 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 867 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 868 return (EINVAL); 869 } 870 #endif 871 872 val = 1; 873 sc->ciss_msi = val; 874 if (bootverbose) 875 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 876 (val != 1) ? "s" : ""); 877 878 for (i = 0; i < val; i++) 879 sc->ciss_irq_rid[i] = i + 1; 880 881 return (0); 882 883 } 884 885 /************************************************************************ 886 * Setup the Performant structures. 887 */ 888 static int 889 ciss_init_perf(struct ciss_softc *sc) 890 { 891 struct ciss_perf_config *pc = sc->ciss_perf; 892 int reply_size; 893 894 /* 895 * Create the DMA tag for the reply queue. 896 */ 897 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 898 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 899 1, 0, /* alignment, boundary */ 900 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 901 BUS_SPACE_MAXADDR, /* highaddr */ 902 NULL, NULL, /* filter, filterarg */ 903 reply_size, 1, /* maxsize, nsegments */ 904 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 905 0, /* flags */ 906 &sc->ciss_reply_dmat)) { 907 ciss_printf(sc, "can't allocate reply DMA tag\n"); 908 return(ENOMEM); 909 } 910 /* 911 * Allocate memory and make it available for DMA. 912 */ 913 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 914 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 915 ciss_printf(sc, "can't allocate reply memory\n"); 916 return(ENOMEM); 917 } 918 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 919 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 920 bzero(sc->ciss_reply, reply_size); 921 922 sc->ciss_cycle = 0x1; 923 sc->ciss_rqidx = 0; 924 925 /* 926 * Preload the fetch table with common command sizes. This allows the 927 * hardware to not waste bus cycles for typical i/o commands, but also not 928 * tax the driver to be too exact in choosing sizes. The table is optimized 929 * for page-aligned i/o's, but since most i/o comes from the various pagers, 930 * it's a reasonable assumption to make. 931 */ 932 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 933 pc->fetch_count[CISS_SG_FETCH_1] = 934 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 935 pc->fetch_count[CISS_SG_FETCH_2] = 936 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 937 pc->fetch_count[CISS_SG_FETCH_4] = 938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 939 pc->fetch_count[CISS_SG_FETCH_8] = 940 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 941 pc->fetch_count[CISS_SG_FETCH_16] = 942 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 943 pc->fetch_count[CISS_SG_FETCH_32] = 944 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 945 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 946 947 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 948 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 949 pc->rq_bank_hi = 0; 950 pc->rq_bank_lo = 0; 951 pc->rq[0].rq_addr_hi = 0x0; 952 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 953 954 return(0); 955 } 956 957 /************************************************************************ 958 * Wait for the adapter to come ready. 959 */ 960 static int 961 ciss_wait_adapter(struct ciss_softc *sc) 962 { 963 int i; 964 965 debug_called(1); 966 967 /* 968 * Wait for the adapter to come ready. 969 */ 970 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 971 ciss_printf(sc, "waiting for adapter to come ready...\n"); 972 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 973 DELAY(1000000); /* one second */ 974 if (i > 30) { 975 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 976 return(EIO); 977 } 978 } 979 } 980 return(0); 981 } 982 983 /************************************************************************ 984 * Flush the adapter cache. 985 */ 986 static int 987 ciss_flush_adapter(struct ciss_softc *sc) 988 { 989 struct ciss_request *cr; 990 struct ciss_bmic_flush_cache *cbfc; 991 int error, command_status; 992 993 debug_called(1); 994 995 cr = NULL; 996 cbfc = NULL; 997 998 /* 999 * Build a BMIC request to flush the cache. We don't disable 1000 * it, as we may be going to do more I/O (eg. we are emulating 1001 * the Synchronise Cache command). 1002 */ 1003 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1004 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1005 (void **)&cbfc, sizeof(*cbfc))) != 0) 1006 goto out; 1007 1008 /* 1009 * Submit the request and wait for it to complete. 1010 */ 1011 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1012 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1013 goto out; 1014 } 1015 1016 /* 1017 * Check response. 1018 */ 1019 ciss_report_request(cr, &command_status, NULL); 1020 switch(command_status) { 1021 case CISS_CMD_STATUS_SUCCESS: 1022 break; 1023 default: 1024 ciss_printf(sc, "error flushing cache (%s)\n", 1025 ciss_name_command_status(command_status)); 1026 error = EIO; 1027 goto out; 1028 } 1029 1030 out: 1031 if (cbfc != NULL) 1032 kfree(cbfc, CISS_MALLOC_CLASS); 1033 if (cr != NULL) 1034 ciss_release_request(cr); 1035 return(error); 1036 } 1037 1038 static void 1039 ciss_soft_reset(struct ciss_softc *sc) 1040 { 1041 struct ciss_request *cr = NULL; 1042 struct ciss_command *cc; 1043 int i, error = 0; 1044 1045 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1046 /* only reset proxy controllers */ 1047 if (sc->ciss_controllers[i].physical.bus == 0) 1048 continue; 1049 1050 if ((error = ciss_get_request(sc, &cr)) != 0) 1051 break; 1052 1053 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1054 NULL, 0)) != 0) 1055 break; 1056 1057 cc = cr->cr_cc; 1058 cc->header.address = sc->ciss_controllers[i]; 1059 1060 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1061 break; 1062 1063 ciss_release_request(cr); 1064 } 1065 1066 if (error) 1067 ciss_printf(sc, "error resetting controller (%d)\n", error); 1068 1069 if (cr != NULL) 1070 ciss_release_request(cr); 1071 } 1072 1073 /************************************************************************ 1074 * Allocate memory for the adapter command structures, initialise 1075 * the request structures. 1076 * 1077 * Note that the entire set of commands are allocated in a single 1078 * contiguous slab. 1079 */ 1080 static int 1081 ciss_init_requests(struct ciss_softc *sc) 1082 { 1083 struct ciss_request *cr; 1084 int i; 1085 1086 debug_called(1); 1087 1088 if (bootverbose) 1089 ciss_printf(sc, "using %d of %d available commands\n", 1090 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1091 1092 /* 1093 * Create the DMA tag for commands. 1094 */ 1095 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1096 32, 0, /* alignment, boundary */ 1097 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1098 BUS_SPACE_MAXADDR, /* highaddr */ 1099 NULL, NULL, /* filter, filterarg */ 1100 CISS_COMMAND_ALLOC_SIZE * 1101 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1102 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1103 0, /* flags */ 1104 &sc->ciss_command_dmat)) { 1105 ciss_printf(sc, "can't allocate command DMA tag\n"); 1106 return(ENOMEM); 1107 } 1108 /* 1109 * Allocate memory and make it available for DMA. 1110 */ 1111 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1112 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1113 ciss_printf(sc, "can't allocate command memory\n"); 1114 return(ENOMEM); 1115 } 1116 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1117 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1118 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1119 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1120 1121 /* 1122 * Set up the request and command structures, push requests onto 1123 * the free queue. 1124 */ 1125 for (i = 1; i < sc->ciss_max_requests; i++) { 1126 cr = &sc->ciss_request[i]; 1127 cr->cr_sc = sc; 1128 cr->cr_tag = i; 1129 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1130 CISS_COMMAND_ALLOC_SIZE * i); 1131 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1132 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1133 ciss_enqueue_free(cr); 1134 } 1135 return(0); 1136 } 1137 1138 static void 1139 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1140 { 1141 uint32_t *addr; 1142 1143 addr = arg; 1144 *addr = segs[0].ds_addr; 1145 } 1146 1147 /************************************************************************ 1148 * Identify the adapter, print some information about it. 1149 */ 1150 static int 1151 ciss_identify_adapter(struct ciss_softc *sc) 1152 { 1153 struct ciss_request *cr; 1154 int error, command_status; 1155 1156 debug_called(1); 1157 1158 cr = NULL; 1159 1160 /* 1161 * Get a request, allocate storage for the adapter data. 1162 */ 1163 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1164 (void **)&sc->ciss_id, 1165 sizeof(*sc->ciss_id))) != 0) 1166 goto out; 1167 1168 /* 1169 * Submit the request and wait for it to complete. 1170 */ 1171 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1172 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1173 goto out; 1174 } 1175 1176 /* 1177 * Check response. 1178 */ 1179 ciss_report_request(cr, &command_status, NULL); 1180 switch(command_status) { 1181 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1182 break; 1183 case CISS_CMD_STATUS_DATA_UNDERRUN: 1184 case CISS_CMD_STATUS_DATA_OVERRUN: 1185 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1186 default: 1187 ciss_printf(sc, "error reading adapter information (%s)\n", 1188 ciss_name_command_status(command_status)); 1189 error = EIO; 1190 goto out; 1191 } 1192 1193 /* sanity-check reply */ 1194 if (!sc->ciss_id->big_map_supported) { 1195 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1196 error = ENXIO; 1197 goto out; 1198 } 1199 1200 #if 0 1201 /* XXX later revisions may not need this */ 1202 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1203 #endif 1204 1205 /* XXX only really required for old 5300 adapters? */ 1206 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1207 1208 /* print information */ 1209 if (bootverbose) { 1210 #if 0 /* XXX proxy volumes??? */ 1211 ciss_printf(sc, " %d logical drive%s configured\n", 1212 sc->ciss_id->configured_logical_drives, 1213 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1214 #endif 1215 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1216 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1217 1218 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1219 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1220 ciss_printf(sc, " supported I/O methods 0x%b\n", 1221 sc->ciss_cfg->supported_methods, 1222 "\20\1READY\2simple\3performant\4MEMQ\n"); 1223 ciss_printf(sc, " active I/O method 0x%b\n", 1224 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1225 ciss_printf(sc, " 4G page base 0x%08x\n", 1226 sc->ciss_cfg->command_physlimit); 1227 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1228 sc->ciss_cfg->interrupt_coalesce_delay); 1229 ciss_printf(sc, " interrupt coalesce count %d\n", 1230 sc->ciss_cfg->interrupt_coalesce_count); 1231 ciss_printf(sc, " max outstanding commands %d\n", 1232 sc->ciss_cfg->max_outstanding_commands); 1233 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1234 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1235 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1236 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1237 } 1238 1239 out: 1240 if (error) { 1241 if (sc->ciss_id != NULL) { 1242 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1243 sc->ciss_id = NULL; 1244 } 1245 } 1246 if (cr != NULL) 1247 ciss_release_request(cr); 1248 return(error); 1249 } 1250 1251 /************************************************************************ 1252 * Helper routine for generating a list of logical and physical luns. 1253 */ 1254 static struct ciss_lun_report * 1255 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1256 { 1257 struct ciss_request *cr; 1258 struct ciss_command *cc; 1259 struct ciss_report_cdb *crc; 1260 struct ciss_lun_report *cll; 1261 int command_status; 1262 int report_size; 1263 int error = 0; 1264 1265 debug_called(1); 1266 1267 cr = NULL; 1268 cll = NULL; 1269 1270 /* 1271 * Get a request, allocate storage for the address list. 1272 */ 1273 if ((error = ciss_get_request(sc, &cr)) != 0) 1274 goto out; 1275 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1276 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1277 1278 /* 1279 * Build the Report Logical/Physical LUNs command. 1280 */ 1281 cc = cr->cr_cc; 1282 cr->cr_data = cll; 1283 cr->cr_length = report_size; 1284 cr->cr_flags = CISS_REQ_DATAIN; 1285 1286 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1287 cc->header.address.physical.bus = 0; 1288 cc->header.address.physical.target = 0; 1289 cc->cdb.cdb_length = sizeof(*crc); 1290 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1291 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1292 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1293 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1294 1295 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1296 bzero(crc, sizeof(*crc)); 1297 crc->opcode = opcode; 1298 crc->length = htonl(report_size); /* big-endian field */ 1299 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1300 1301 /* 1302 * Submit the request and wait for it to complete. (timeout 1303 * here should be much greater than above) 1304 */ 1305 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1306 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1307 goto out; 1308 } 1309 1310 /* 1311 * Check response. Note that data over/underrun is OK. 1312 */ 1313 ciss_report_request(cr, &command_status, NULL); 1314 switch(command_status) { 1315 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1316 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1317 break; 1318 case CISS_CMD_STATUS_DATA_OVERRUN: 1319 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1320 CISS_MAX_LOGICAL); 1321 break; 1322 default: 1323 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1324 ciss_name_command_status(command_status)); 1325 error = EIO; 1326 goto out; 1327 } 1328 ciss_release_request(cr); 1329 cr = NULL; 1330 1331 out: 1332 if (cr != NULL) 1333 ciss_release_request(cr); 1334 if (error && cll != NULL) { 1335 kfree(cll, CISS_MALLOC_CLASS); 1336 cll = NULL; 1337 } 1338 return(cll); 1339 } 1340 1341 /************************************************************************ 1342 * Find logical drives on the adapter. 1343 */ 1344 static int 1345 ciss_init_logical(struct ciss_softc *sc) 1346 { 1347 struct ciss_lun_report *cll; 1348 int error = 0, i, j; 1349 int ndrives; 1350 1351 debug_called(1); 1352 1353 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1354 CISS_MAX_LOGICAL); 1355 if (cll == NULL) { 1356 error = ENXIO; 1357 goto out; 1358 } 1359 1360 /* sanity-check reply */ 1361 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1362 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1363 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1364 ndrives, CISS_MAX_LOGICAL); 1365 error = ENXIO; 1366 goto out; 1367 } 1368 1369 /* 1370 * Save logical drive information. 1371 */ 1372 if (bootverbose) { 1373 ciss_printf(sc, "%d logical drive%s\n", 1374 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1375 } 1376 1377 sc->ciss_logical = 1378 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1379 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1380 1381 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1382 sc->ciss_logical[i] = 1383 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1384 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1385 1386 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1387 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1388 } 1389 1390 1391 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1392 if (i < ndrives) { 1393 struct ciss_ldrive *ld; 1394 int bus, target; 1395 1396 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1397 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1398 ld = &sc->ciss_logical[bus][target]; 1399 1400 ld->cl_address = cll->lun[i]; 1401 ld->cl_controller = &sc->ciss_controllers[bus]; 1402 if (ciss_identify_logical(sc, ld) != 0) 1403 continue; 1404 /* 1405 * If the drive has had media exchanged, we should bring it online. 1406 */ 1407 if (ld->cl_lstatus->media_exchanged) 1408 ciss_accept_media(sc, ld); 1409 1410 } 1411 } 1412 1413 out: 1414 if (cll != NULL) 1415 kfree(cll, CISS_MALLOC_CLASS); 1416 return(error); 1417 } 1418 1419 static int 1420 ciss_init_physical(struct ciss_softc *sc) 1421 { 1422 struct ciss_lun_report *cll; 1423 int error = 0, i; 1424 int nphys; 1425 int bus; 1426 1427 debug_called(1); 1428 1429 bus = 0; 1430 1431 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1432 CISS_MAX_PHYSICAL); 1433 if (cll == NULL) { 1434 error = ENXIO; 1435 goto out; 1436 } 1437 1438 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1439 1440 if (bootverbose) { 1441 ciss_printf(sc, "%d physical device%s\n", 1442 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1443 } 1444 1445 /* 1446 * Figure out the bus mapping. 1447 * Logical buses include both the local logical bus for local arrays and 1448 * proxy buses for remote arrays. Physical buses are numbered by the 1449 * controller and represent physical buses that hold physical devices. 1450 * We shift these bus numbers so that everything fits into a single flat 1451 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1452 * numbers, and the physical bus numbers are shifted to be above that. 1453 * This results in the various driver arrays being indexed as follows: 1454 * 1455 * ciss_controllers[] - indexed by logical bus 1456 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1457 * being shifted by 32. 1458 * ciss_logical[][] - indexed by logical bus 1459 * ciss_physical[][] - indexed by physical bus 1460 * 1461 * XXX This is getting more and more hackish. CISS really doesn't play 1462 * well with a standard SCSI model; devices are addressed via magic 1463 * cookies, not via b/t/l addresses. Since there is no way to store 1464 * the cookie in the CAM device object, we have to keep these lookup 1465 * tables handy so that the devices can be found quickly at the cost 1466 * of wasting memory and having a convoluted lookup scheme. This 1467 * driver should probably be converted to block interface. 1468 */ 1469 /* 1470 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1471 * controller. A proxy controller is another physical controller 1472 * behind the primary PCI controller. We need to know about this 1473 * so that BMIC commands can be properly targeted. There can be 1474 * proxy controllers attached to a single PCI controller, so 1475 * find the highest numbered one so the array can be properly 1476 * sized. 1477 */ 1478 sc->ciss_max_logical_bus = 1; 1479 for (i = 0; i < nphys; i++) { 1480 if (cll->lun[i].physical.extra_address == 0) { 1481 bus = cll->lun[i].physical.bus; 1482 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1483 } else { 1484 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1485 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1486 } 1487 } 1488 1489 sc->ciss_controllers = 1490 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1491 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1492 1493 /* setup a map of controller addresses */ 1494 for (i = 0; i < nphys; i++) { 1495 if (cll->lun[i].physical.extra_address == 0) { 1496 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1497 } 1498 } 1499 1500 sc->ciss_physical = 1501 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1502 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1503 1504 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1505 sc->ciss_physical[i] = 1506 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1507 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1508 } 1509 1510 ciss_filter_physical(sc, cll); 1511 1512 out: 1513 if (cll != NULL) 1514 kfree(cll, CISS_MALLOC_CLASS); 1515 1516 return(error); 1517 } 1518 1519 static int 1520 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1521 { 1522 u_int32_t ea; 1523 int i, nphys; 1524 int bus, target; 1525 1526 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1527 for (i = 0; i < nphys; i++) { 1528 if (cll->lun[i].physical.extra_address == 0) 1529 continue; 1530 1531 /* 1532 * Filter out devices that we don't want. Level 3 LUNs could 1533 * probably be supported, but the docs don't give enough of a 1534 * hint to know how. 1535 * 1536 * The mode field of the physical address is likely set to have 1537 * hard disks masked out. Honor it unless the user has overridden 1538 * us with the tunable. We also munge the inquiry data for these 1539 * disks so that they only show up as passthrough devices. Keeping 1540 * them visible in this fashion is useful for doing things like 1541 * flashing firmware. 1542 */ 1543 ea = cll->lun[i].physical.extra_address; 1544 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1545 (CISS_EXTRA_MODE2(ea) == 0x3)) 1546 continue; 1547 if ((ciss_expose_hidden_physical == 0) && 1548 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1549 continue; 1550 1551 /* 1552 * Note: CISS firmware numbers physical busses starting at '1', not 1553 * '0'. This numbering is internal to the firmware and is only 1554 * used as a hint here. 1555 */ 1556 bus = CISS_EXTRA_BUS2(ea) - 1; 1557 target = CISS_EXTRA_TARGET2(ea); 1558 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1559 sc->ciss_physical[bus][target].cp_online = 1; 1560 } 1561 1562 return (0); 1563 } 1564 1565 static int 1566 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1567 { 1568 struct ciss_request *cr; 1569 struct ciss_command *cc; 1570 struct scsi_inquiry *inq; 1571 int error; 1572 int command_status; 1573 1574 cr = NULL; 1575 1576 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1577 1578 if ((error = ciss_get_request(sc, &cr)) != 0) 1579 goto out; 1580 1581 cc = cr->cr_cc; 1582 cr->cr_data = &ld->cl_geometry; 1583 cr->cr_length = sizeof(ld->cl_geometry); 1584 cr->cr_flags = CISS_REQ_DATAIN; 1585 1586 cc->header.address = ld->cl_address; 1587 cc->cdb.cdb_length = 6; 1588 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1589 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1590 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1591 cc->cdb.timeout = 30; 1592 1593 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1594 inq->opcode = INQUIRY; 1595 inq->byte2 = SI_EVPD; 1596 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1597 inq->length = sizeof(ld->cl_geometry); 1598 1599 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1600 ciss_printf(sc, "error getting geometry (%d)\n", error); 1601 goto out; 1602 } 1603 1604 ciss_report_request(cr, &command_status, NULL); 1605 switch(command_status) { 1606 case CISS_CMD_STATUS_SUCCESS: 1607 case CISS_CMD_STATUS_DATA_UNDERRUN: 1608 break; 1609 case CISS_CMD_STATUS_DATA_OVERRUN: 1610 ciss_printf(sc, "WARNING: Data overrun\n"); 1611 break; 1612 default: 1613 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1614 ciss_name_command_status(command_status)); 1615 break; 1616 } 1617 1618 out: 1619 if (cr != NULL) 1620 ciss_release_request(cr); 1621 return(error); 1622 } 1623 /************************************************************************ 1624 * Identify a logical drive, initialise state related to it. 1625 */ 1626 static int 1627 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1628 { 1629 struct ciss_request *cr; 1630 struct ciss_command *cc; 1631 struct ciss_bmic_cdb *cbc; 1632 int error, command_status; 1633 1634 debug_called(1); 1635 1636 cr = NULL; 1637 1638 /* 1639 * Build a BMIC request to fetch the drive ID. 1640 */ 1641 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1642 (void **)&ld->cl_ldrive, 1643 sizeof(*ld->cl_ldrive))) != 0) 1644 goto out; 1645 cc = cr->cr_cc; 1646 cc->header.address = *ld->cl_controller; /* target controller */ 1647 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1648 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1649 1650 /* 1651 * Submit the request and wait for it to complete. 1652 */ 1653 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1654 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1655 goto out; 1656 } 1657 1658 /* 1659 * Check response. 1660 */ 1661 ciss_report_request(cr, &command_status, NULL); 1662 switch(command_status) { 1663 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1664 break; 1665 case CISS_CMD_STATUS_DATA_UNDERRUN: 1666 case CISS_CMD_STATUS_DATA_OVERRUN: 1667 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1668 default: 1669 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1670 ciss_name_command_status(command_status)); 1671 error = EIO; 1672 goto out; 1673 } 1674 ciss_release_request(cr); 1675 cr = NULL; 1676 1677 /* 1678 * Build a CISS BMIC command to get the logical drive status. 1679 */ 1680 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1681 goto out; 1682 1683 /* 1684 * Get the logical drive geometry. 1685 */ 1686 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1687 goto out; 1688 1689 /* 1690 * Print the drive's basic characteristics. 1691 */ 1692 if (bootverbose) { 1693 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1694 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1695 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1696 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1697 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1698 ld->cl_ldrive->block_size)); 1699 1700 ciss_print_ldrive(sc, ld); 1701 } 1702 out: 1703 if (error != 0) { 1704 /* make the drive not-exist */ 1705 ld->cl_status = CISS_LD_NONEXISTENT; 1706 if (ld->cl_ldrive != NULL) { 1707 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1708 ld->cl_ldrive = NULL; 1709 } 1710 if (ld->cl_lstatus != NULL) { 1711 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1712 ld->cl_lstatus = NULL; 1713 } 1714 } 1715 if (cr != NULL) 1716 ciss_release_request(cr); 1717 1718 return(error); 1719 } 1720 1721 /************************************************************************ 1722 * Get status for a logical drive. 1723 * 1724 * XXX should we also do this in response to Test Unit Ready? 1725 */ 1726 static int 1727 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1728 { 1729 struct ciss_request *cr; 1730 struct ciss_command *cc; 1731 struct ciss_bmic_cdb *cbc; 1732 int error, command_status; 1733 1734 /* 1735 * Build a CISS BMIC command to get the logical drive status. 1736 */ 1737 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1738 (void **)&ld->cl_lstatus, 1739 sizeof(*ld->cl_lstatus))) != 0) 1740 goto out; 1741 cc = cr->cr_cc; 1742 cc->header.address = *ld->cl_controller; /* target controller */ 1743 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1744 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1745 1746 /* 1747 * Submit the request and wait for it to complete. 1748 */ 1749 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1750 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1751 goto out; 1752 } 1753 1754 /* 1755 * Check response. 1756 */ 1757 ciss_report_request(cr, &command_status, NULL); 1758 switch(command_status) { 1759 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1760 break; 1761 case CISS_CMD_STATUS_DATA_UNDERRUN: 1762 case CISS_CMD_STATUS_DATA_OVERRUN: 1763 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1764 default: 1765 ciss_printf(sc, "error reading logical drive status (%s)\n", 1766 ciss_name_command_status(command_status)); 1767 error = EIO; 1768 goto out; 1769 } 1770 1771 /* 1772 * Set the drive's summary status based on the returned status. 1773 * 1774 * XXX testing shows that a failed JBOD drive comes back at next 1775 * boot in "queued for expansion" mode. WTF? 1776 */ 1777 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1778 1779 out: 1780 if (cr != NULL) 1781 ciss_release_request(cr); 1782 return(error); 1783 } 1784 1785 /************************************************************************ 1786 * Notify the adapter of a config update. 1787 */ 1788 static int 1789 ciss_update_config(struct ciss_softc *sc) 1790 { 1791 int i; 1792 1793 debug_called(1); 1794 1795 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1796 for (i = 0; i < 1000; i++) { 1797 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1798 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1799 return(0); 1800 } 1801 DELAY(1000); 1802 } 1803 return(1); 1804 } 1805 1806 /************************************************************************ 1807 * Accept new media into a logical drive. 1808 * 1809 * XXX The drive has previously been offline; it would be good if we 1810 * could make sure it's not open right now. 1811 */ 1812 static int 1813 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1814 { 1815 struct ciss_request *cr; 1816 struct ciss_command *cc; 1817 struct ciss_bmic_cdb *cbc; 1818 int command_status; 1819 int error = 0, ldrive; 1820 1821 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1822 1823 debug(0, "bringing logical drive %d back online", ldrive); 1824 1825 /* 1826 * Build a CISS BMIC command to bring the drive back online. 1827 */ 1828 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1829 NULL, 0)) != 0) 1830 goto out; 1831 cc = cr->cr_cc; 1832 cc->header.address = *ld->cl_controller; /* target controller */ 1833 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1834 cbc->log_drive = ldrive; 1835 1836 /* 1837 * Submit the request and wait for it to complete. 1838 */ 1839 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1840 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1841 goto out; 1842 } 1843 1844 /* 1845 * Check response. 1846 */ 1847 ciss_report_request(cr, &command_status, NULL); 1848 switch(command_status) { 1849 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1850 /* we should get a logical drive status changed event here */ 1851 break; 1852 default: 1853 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1854 ciss_name_command_status(command_status)); 1855 break; 1856 } 1857 1858 out: 1859 if (cr != NULL) 1860 ciss_release_request(cr); 1861 return(error); 1862 } 1863 1864 /************************************************************************ 1865 * Release adapter resources. 1866 */ 1867 static void 1868 ciss_free(struct ciss_softc *sc) 1869 { 1870 struct ciss_request *cr; 1871 int i, j; 1872 1873 debug_called(1); 1874 1875 /* we're going away */ 1876 sc->ciss_flags |= CISS_FLAG_ABORTING; 1877 1878 /* terminate the periodic heartbeat routine */ 1879 callout_stop(&sc->ciss_periodic); 1880 1881 /* cancel the Event Notify chain */ 1882 ciss_notify_abort(sc); 1883 1884 ciss_kill_notify_thread(sc); 1885 1886 /* disconnect from CAM */ 1887 if (sc->ciss_cam_sim) { 1888 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1889 if (sc->ciss_cam_sim[i]) { 1890 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1891 cam_sim_free(sc->ciss_cam_sim[i]); 1892 } 1893 } 1894 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1895 CISS_PHYSICAL_BASE; i++) { 1896 if (sc->ciss_cam_sim[i]) { 1897 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1898 cam_sim_free(sc->ciss_cam_sim[i]); 1899 } 1900 } 1901 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1902 } 1903 if (sc->ciss_cam_devq) 1904 cam_simq_release(sc->ciss_cam_devq); 1905 1906 /* remove the control device */ 1907 lockmgr(&sc->ciss_lock, LK_RELEASE); 1908 if (sc->ciss_dev_t != NULL) 1909 destroy_dev(sc->ciss_dev_t); 1910 1911 /* Final cleanup of the callout. */ 1912 callout_stop_sync(&sc->ciss_periodic); 1913 lockuninit(&sc->ciss_lock); 1914 1915 /* free the controller data */ 1916 if (sc->ciss_id != NULL) 1917 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1918 1919 /* release I/O resources */ 1920 if (sc->ciss_regs_resource != NULL) 1921 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1922 sc->ciss_regs_rid, sc->ciss_regs_resource); 1923 if (sc->ciss_cfg_resource != NULL) 1924 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1925 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1926 if (sc->ciss_intr != NULL) 1927 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1928 if (sc->ciss_irq_resource != NULL) 1929 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1930 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1931 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI) 1932 pci_release_msi(sc->ciss_dev); 1933 1934 while ((cr = ciss_dequeue_free(sc)) != NULL) 1935 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1936 if (sc->ciss_buffer_dmat) 1937 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1938 1939 /* destroy command memory and DMA tag */ 1940 if (sc->ciss_command != NULL) { 1941 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1942 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1943 } 1944 if (sc->ciss_command_dmat) 1945 bus_dma_tag_destroy(sc->ciss_command_dmat); 1946 1947 if (sc->ciss_reply) { 1948 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1949 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1950 } 1951 if (sc->ciss_reply_dmat) 1952 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1953 1954 /* destroy DMA tags */ 1955 if (sc->ciss_parent_dmat) 1956 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1957 if (sc->ciss_logical) { 1958 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1959 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1960 if (sc->ciss_logical[i][j].cl_ldrive) 1961 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1962 if (sc->ciss_logical[i][j].cl_lstatus) 1963 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1964 } 1965 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1966 } 1967 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1968 } 1969 1970 if (sc->ciss_physical) { 1971 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1972 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1973 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1974 } 1975 1976 if (sc->ciss_controllers) 1977 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1978 } 1979 1980 /************************************************************************ 1981 * Give a command to the adapter. 1982 * 1983 * Note that this uses the simple transport layer directly. If we 1984 * want to add support for other layers, we'll need a switch of some 1985 * sort. 1986 * 1987 * Note that the simple transport layer has no way of refusing a 1988 * command; we only have as many request structures as the adapter 1989 * supports commands, so we don't have to check (this presumes that 1990 * the adapter can handle commands as fast as we throw them at it). 1991 */ 1992 static int 1993 ciss_start(struct ciss_request *cr) 1994 { 1995 #ifdef CISS_DEBUG 1996 struct ciss_command *cc; 1997 #endif 1998 int error; 1999 2000 #ifdef CISS_DEBUG 2001 cc = cr->cr_cc; 2002 #endif 2003 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2004 2005 /* 2006 * Map the request's data. 2007 */ 2008 if ((error = ciss_map_request(cr))) 2009 return(error); 2010 2011 #if 0 2012 ciss_print_request(cr); 2013 #endif 2014 2015 return(0); 2016 } 2017 2018 /************************************************************************ 2019 * Fetch completed request(s) from the adapter, queue them for 2020 * completion handling. 2021 * 2022 * Note that this uses the simple transport layer directly. If we 2023 * want to add support for other layers, we'll need a switch of some 2024 * sort. 2025 * 2026 * Note that the simple transport mechanism does not require any 2027 * reentrancy protection; the OPQ read is atomic. If there is a 2028 * chance of a race with something else that might move the request 2029 * off the busy list, then we will have to lock against that 2030 * (eg. timeouts, etc.) 2031 */ 2032 static void 2033 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2034 { 2035 struct ciss_request *cr; 2036 struct ciss_command *cc; 2037 u_int32_t tag, index; 2038 2039 debug_called(3); 2040 2041 /* 2042 * Loop quickly taking requests from the adapter and moving them 2043 * to the completed queue. 2044 */ 2045 for (;;) { 2046 2047 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2048 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2049 break; 2050 index = tag >> 2; 2051 debug(2, "completed command %d%s", index, 2052 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2053 if (index >= sc->ciss_max_requests) { 2054 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2055 continue; 2056 } 2057 cr = &(sc->ciss_request[index]); 2058 cc = cr->cr_cc; 2059 cc->header.host_tag = tag; /* not updated by adapter */ 2060 ciss_enqueue_complete(cr, qh); 2061 } 2062 2063 } 2064 2065 static void 2066 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2067 { 2068 struct ciss_request *cr; 2069 struct ciss_command *cc; 2070 u_int32_t tag, index; 2071 2072 debug_called(3); 2073 2074 /* 2075 * Loop quickly taking requests from the adapter and moving them 2076 * to the completed queue. 2077 */ 2078 for (;;) { 2079 tag = sc->ciss_reply[sc->ciss_rqidx]; 2080 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2081 break; 2082 index = tag >> 2; 2083 debug(2, "completed command %d%s\n", index, 2084 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2085 if (index < sc->ciss_max_requests) { 2086 cr = &(sc->ciss_request[index]); 2087 cc = cr->cr_cc; 2088 cc->header.host_tag = tag; /* not updated by adapter */ 2089 ciss_enqueue_complete(cr, qh); 2090 } else { 2091 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2092 } 2093 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2094 sc->ciss_rqidx = 0; 2095 sc->ciss_cycle ^= 1; 2096 } 2097 } 2098 2099 } 2100 2101 /************************************************************************ 2102 * Take an interrupt from the adapter. 2103 */ 2104 static void 2105 ciss_intr(void *arg) 2106 { 2107 cr_qhead_t qh; 2108 struct ciss_softc *sc = (struct ciss_softc *)arg; 2109 2110 /* 2111 * The only interrupt we recognise indicates that there are 2112 * entries in the outbound post queue. 2113 */ 2114 STAILQ_INIT(&qh); 2115 ciss_done(sc, &qh); 2116 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2117 ciss_complete(sc, &qh); 2118 lockmgr(&sc->ciss_lock, LK_RELEASE); 2119 } 2120 2121 static void 2122 ciss_perf_intr(void *arg) 2123 { 2124 struct ciss_softc *sc = (struct ciss_softc *)arg; 2125 2126 /* Clear the interrupt and flush the bridges. Docs say that the flush 2127 * needs to be done twice, which doesn't seem right. 2128 */ 2129 CISS_TL_PERF_CLEAR_INT(sc); 2130 CISS_TL_PERF_FLUSH_INT(sc); 2131 2132 ciss_perf_msi_intr(sc); 2133 } 2134 2135 static void 2136 ciss_perf_msi_intr(void *arg) 2137 { 2138 cr_qhead_t qh; 2139 struct ciss_softc *sc = (struct ciss_softc *)arg; 2140 2141 STAILQ_INIT(&qh); 2142 ciss_perf_done(sc, &qh); 2143 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2144 ciss_complete(sc, &qh); 2145 lockmgr(&sc->ciss_lock, LK_RELEASE); 2146 } 2147 2148 2149 /************************************************************************ 2150 * Process completed requests. 2151 * 2152 * Requests can be completed in three fashions: 2153 * 2154 * - by invoking a callback function (cr_complete is non-null) 2155 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2156 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2157 */ 2158 static void 2159 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2160 { 2161 struct ciss_request *cr; 2162 2163 debug_called(2); 2164 2165 /* 2166 * Loop taking requests off the completed queue and performing 2167 * completion processing on them. 2168 */ 2169 for (;;) { 2170 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2171 break; 2172 ciss_unmap_request(cr); 2173 2174 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2175 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2176 cr->cr_flags &= ~CISS_REQ_BUSY; 2177 2178 /* 2179 * If the request has a callback, invoke it. 2180 */ 2181 if (cr->cr_complete != NULL) { 2182 cr->cr_complete(cr); 2183 continue; 2184 } 2185 2186 /* 2187 * If someone is sleeping on this request, wake them up. 2188 */ 2189 if (cr->cr_flags & CISS_REQ_SLEEP) { 2190 cr->cr_flags &= ~CISS_REQ_SLEEP; 2191 wakeup(cr); 2192 continue; 2193 } 2194 2195 /* 2196 * If someone is polling this request for completion, signal. 2197 */ 2198 if (cr->cr_flags & CISS_REQ_POLL) { 2199 cr->cr_flags &= ~CISS_REQ_POLL; 2200 continue; 2201 } 2202 2203 /* 2204 * Give up and throw the request back on the free queue. This 2205 * should never happen; resources will probably be lost. 2206 */ 2207 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2208 ciss_enqueue_free(cr); 2209 } 2210 } 2211 2212 /************************************************************************ 2213 * Report on the completion status of a request, and pass back SCSI 2214 * and command status values. 2215 */ 2216 static int 2217 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2218 { 2219 struct ciss_command *cc; 2220 struct ciss_error_info *ce; 2221 2222 debug_called(2); 2223 2224 cc = cr->cr_cc; 2225 ce = (struct ciss_error_info *)&(cc->sg[0]); 2226 2227 /* 2228 * We don't consider data under/overrun an error for the Report 2229 * Logical/Physical LUNs commands. 2230 */ 2231 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2232 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2233 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2234 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2235 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2236 (cc->cdb.cdb[0] == INQUIRY))) { 2237 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2238 debug(2, "ignoring irrelevant under/overrun error"); 2239 } 2240 2241 /* 2242 * Check the command's error bit, if clear, there's no status and 2243 * everything is OK. 2244 */ 2245 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2246 if (scsi_status != NULL) 2247 *scsi_status = SCSI_STATUS_OK; 2248 if (command_status != NULL) 2249 *command_status = CISS_CMD_STATUS_SUCCESS; 2250 return(0); 2251 } else { 2252 if (command_status != NULL) 2253 *command_status = ce->command_status; 2254 if (scsi_status != NULL) { 2255 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2256 *scsi_status = ce->scsi_status; 2257 } else { 2258 *scsi_status = -1; 2259 } 2260 } 2261 if (bootverbose) 2262 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2263 ce->command_status, ciss_name_command_status(ce->command_status), 2264 ce->scsi_status); 2265 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2266 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2267 ce->additional_error_info.invalid_command.offense_size, 2268 ce->additional_error_info.invalid_command.offense_offset, 2269 ce->additional_error_info.invalid_command.offense_value, 2270 func); 2271 } 2272 } 2273 #if 0 2274 ciss_print_request(cr); 2275 #endif 2276 return(1); 2277 } 2278 2279 /************************************************************************ 2280 * Issue a request and don't return until it's completed. 2281 * 2282 * Depending on adapter status, we may poll or sleep waiting for 2283 * completion. 2284 */ 2285 static int 2286 ciss_synch_request(struct ciss_request *cr, int timeout) 2287 { 2288 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2289 return(ciss_wait_request(cr, timeout)); 2290 } else { 2291 return(ciss_poll_request(cr, timeout)); 2292 } 2293 } 2294 2295 /************************************************************************ 2296 * Issue a request and poll for completion. 2297 * 2298 * Timeout in milliseconds. 2299 */ 2300 static int 2301 ciss_poll_request(struct ciss_request *cr, int timeout) 2302 { 2303 cr_qhead_t qh; 2304 struct ciss_softc *sc; 2305 int error; 2306 2307 debug_called(2); 2308 2309 STAILQ_INIT(&qh); 2310 sc = cr->cr_sc; 2311 cr->cr_flags |= CISS_REQ_POLL; 2312 if ((error = ciss_start(cr)) != 0) 2313 return(error); 2314 2315 do { 2316 if (sc->ciss_perf) 2317 ciss_perf_done(sc, &qh); 2318 else 2319 ciss_done(sc, &qh); 2320 ciss_complete(sc, &qh); 2321 if (!(cr->cr_flags & CISS_REQ_POLL)) 2322 return(0); 2323 DELAY(1000); 2324 } while (timeout-- >= 0); 2325 return(EWOULDBLOCK); 2326 } 2327 2328 /************************************************************************ 2329 * Issue a request and sleep waiting for completion. 2330 * 2331 * Timeout in milliseconds. Note that a spurious wakeup will reset 2332 * the timeout. 2333 */ 2334 static int 2335 ciss_wait_request(struct ciss_request *cr, int timeout) 2336 { 2337 int error; 2338 2339 debug_called(2); 2340 2341 cr->cr_flags |= CISS_REQ_SLEEP; 2342 if ((error = ciss_start(cr)) != 0) 2343 return(error); 2344 2345 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2346 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000); 2347 } 2348 return(error); 2349 } 2350 2351 #if 0 2352 /************************************************************************ 2353 * Abort a request. Note that a potential exists here to race the 2354 * request being completed; the caller must deal with this. 2355 */ 2356 static int 2357 ciss_abort_request(struct ciss_request *ar) 2358 { 2359 struct ciss_request *cr; 2360 struct ciss_command *cc; 2361 struct ciss_message_cdb *cmc; 2362 int error; 2363 2364 debug_called(1); 2365 2366 /* get a request */ 2367 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2368 return(error); 2369 2370 /* build the abort command */ 2371 cc = cr->cr_cc; 2372 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2373 cc->header.address.physical.target = 0; 2374 cc->header.address.physical.bus = 0; 2375 cc->cdb.cdb_length = sizeof(*cmc); 2376 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2377 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2378 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2379 cc->cdb.timeout = 30; 2380 2381 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2382 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2383 cmc->type = CISS_MESSAGE_ABORT_TASK; 2384 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2385 2386 /* 2387 * Send the request and wait for a response. If we believe we 2388 * aborted the request OK, clear the flag that indicates it's 2389 * running. 2390 */ 2391 error = ciss_synch_request(cr, 35 * 1000); 2392 if (!error) 2393 error = ciss_report_request(cr, NULL, NULL); 2394 ciss_release_request(cr); 2395 2396 return(error); 2397 } 2398 #endif 2399 2400 2401 /************************************************************************ 2402 * Fetch and initialise a request 2403 */ 2404 static int 2405 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2406 { 2407 struct ciss_request *cr; 2408 2409 debug_called(2); 2410 2411 /* 2412 * Get a request and clean it up. 2413 */ 2414 if ((cr = ciss_dequeue_free(sc)) == NULL) 2415 return(ENOMEM); 2416 2417 cr->cr_data = NULL; 2418 cr->cr_flags = 0; 2419 cr->cr_complete = NULL; 2420 cr->cr_private = NULL; 2421 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2422 2423 ciss_preen_command(cr); 2424 *crp = cr; 2425 return(0); 2426 } 2427 2428 static void 2429 ciss_preen_command(struct ciss_request *cr) 2430 { 2431 struct ciss_command *cc; 2432 u_int32_t cmdphys; 2433 2434 /* 2435 * Clean up the command structure. 2436 * 2437 * Note that we set up the error_info structure here, since the 2438 * length can be overwritten by any command. 2439 */ 2440 cc = cr->cr_cc; 2441 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2442 cc->header.sg_total = 0; 2443 cc->header.host_tag = cr->cr_tag << 2; 2444 cc->header.host_tag_zeroes = 0; 2445 cmdphys = cr->cr_ccphys; 2446 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2447 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2448 } 2449 2450 /************************************************************************ 2451 * Release a request to the free list. 2452 */ 2453 static void 2454 ciss_release_request(struct ciss_request *cr) 2455 { 2456 debug_called(2); 2457 2458 /* release the request to the free queue */ 2459 ciss_requeue_free(cr); 2460 } 2461 2462 /************************************************************************ 2463 * Allocate a request that will be used to send a BMIC command. Do some 2464 * of the common setup here to avoid duplicating it everywhere else. 2465 */ 2466 static int 2467 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2468 int opcode, void **bufp, size_t bufsize) 2469 { 2470 struct ciss_request *cr; 2471 struct ciss_command *cc; 2472 struct ciss_bmic_cdb *cbc; 2473 void *buf; 2474 int error; 2475 int dataout; 2476 2477 debug_called(2); 2478 2479 cr = NULL; 2480 buf = NULL; 2481 2482 /* 2483 * Get a request. 2484 */ 2485 if ((error = ciss_get_request(sc, &cr)) != 0) 2486 goto out; 2487 2488 /* 2489 * Allocate data storage if requested, determine the data direction. 2490 */ 2491 dataout = 0; 2492 if ((bufsize > 0) && (bufp != NULL)) { 2493 if (*bufp == NULL) { 2494 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2495 } else { 2496 buf = *bufp; 2497 dataout = 1; /* we are given a buffer, so we are writing */ 2498 } 2499 } 2500 2501 /* 2502 * Build a CISS BMIC command to get the logical drive ID. 2503 */ 2504 cr->cr_data = buf; 2505 cr->cr_length = bufsize; 2506 if (!dataout) 2507 cr->cr_flags = CISS_REQ_DATAIN; 2508 2509 cc = cr->cr_cc; 2510 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2511 cc->header.address.physical.bus = 0; 2512 cc->header.address.physical.target = 0; 2513 cc->cdb.cdb_length = sizeof(*cbc); 2514 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2515 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2516 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2517 cc->cdb.timeout = 0; 2518 2519 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2520 bzero(cbc, sizeof(*cbc)); 2521 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2522 cbc->bmic_opcode = opcode; 2523 cbc->size = htons((u_int16_t)bufsize); 2524 2525 out: 2526 if (error) { 2527 if (cr != NULL) 2528 ciss_release_request(cr); 2529 } else { 2530 *crp = cr; 2531 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2532 *bufp = buf; 2533 } 2534 return(error); 2535 } 2536 2537 /************************************************************************ 2538 * Handle a command passed in from userspace. 2539 */ 2540 static int 2541 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2542 { 2543 struct ciss_request *cr; 2544 struct ciss_command *cc; 2545 struct ciss_error_info *ce; 2546 int error = 0; 2547 2548 debug_called(1); 2549 2550 cr = NULL; 2551 2552 /* 2553 * Get a request. 2554 */ 2555 while (ciss_get_request(sc, &cr) != 0) 2556 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz); 2557 cc = cr->cr_cc; 2558 2559 /* 2560 * Allocate an in-kernel databuffer if required, copy in user data. 2561 */ 2562 lockmgr(&sc->ciss_lock, LK_RELEASE); 2563 cr->cr_length = ioc->buf_size; 2564 if (ioc->buf_size > 0) { 2565 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2566 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2567 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2568 goto out_unlocked; 2569 } 2570 } 2571 2572 /* 2573 * Build the request based on the user command. 2574 */ 2575 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2576 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2577 2578 /* XXX anything else to populate here? */ 2579 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2580 2581 /* 2582 * Run the command. 2583 */ 2584 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2585 debug(0, "request failed - %d", error); 2586 goto out; 2587 } 2588 2589 /* 2590 * Check to see if the command succeeded. 2591 */ 2592 ce = (struct ciss_error_info *)&(cc->sg[0]); 2593 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2594 bzero(ce, sizeof(*ce)); 2595 2596 /* 2597 * Copy the results back to the user. 2598 */ 2599 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2600 lockmgr(&sc->ciss_lock, LK_RELEASE); 2601 if ((ioc->buf_size > 0) && 2602 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2603 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2604 goto out_unlocked; 2605 } 2606 2607 /* done OK */ 2608 error = 0; 2609 2610 out_unlocked: 2611 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2612 2613 out: 2614 if ((cr != NULL) && (cr->cr_data != NULL)) 2615 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2616 if (cr != NULL) 2617 ciss_release_request(cr); 2618 return(error); 2619 } 2620 2621 /************************************************************************ 2622 * Map a request into bus-visible space, initialise the scatter/gather 2623 * list. 2624 */ 2625 static int 2626 ciss_map_request(struct ciss_request *cr) 2627 { 2628 struct ciss_softc *sc; 2629 int error = 0; 2630 2631 debug_called(2); 2632 2633 sc = cr->cr_sc; 2634 2635 /* check that mapping is necessary */ 2636 if (cr->cr_flags & CISS_REQ_MAPPED) 2637 return(0); 2638 2639 cr->cr_flags |= CISS_REQ_MAPPED; 2640 2641 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2642 BUS_DMASYNC_PREWRITE); 2643 2644 if (cr->cr_data != NULL) { 2645 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2646 cr->cr_data, cr->cr_length, 2647 ciss_request_map_helper, cr, 0); 2648 if (error != 0) 2649 return (error); 2650 } else { 2651 /* 2652 * Post the command to the adapter. 2653 */ 2654 cr->cr_sg_tag = CISS_SG_NONE; 2655 cr->cr_flags |= CISS_REQ_BUSY; 2656 if (sc->ciss_perf) 2657 CISS_TL_PERF_POST_CMD(sc, cr); 2658 else 2659 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2660 } 2661 2662 return(0); 2663 } 2664 2665 static void 2666 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2667 { 2668 struct ciss_command *cc; 2669 struct ciss_request *cr; 2670 struct ciss_softc *sc; 2671 int i; 2672 2673 debug_called(2); 2674 2675 cr = (struct ciss_request *)arg; 2676 sc = cr->cr_sc; 2677 cc = cr->cr_cc; 2678 2679 for (i = 0; i < nseg; i++) { 2680 cc->sg[i].address = segs[i].ds_addr; 2681 cc->sg[i].length = segs[i].ds_len; 2682 cc->sg[i].extension = 0; 2683 } 2684 /* we leave the s/g table entirely within the command */ 2685 cc->header.sg_in_list = nseg; 2686 cc->header.sg_total = nseg; 2687 2688 if (cr->cr_flags & CISS_REQ_DATAIN) 2689 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2690 if (cr->cr_flags & CISS_REQ_DATAOUT) 2691 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2692 2693 if (nseg == 0) 2694 cr->cr_sg_tag = CISS_SG_NONE; 2695 else if (nseg == 1) 2696 cr->cr_sg_tag = CISS_SG_1; 2697 else if (nseg == 2) 2698 cr->cr_sg_tag = CISS_SG_2; 2699 else if (nseg <= 4) 2700 cr->cr_sg_tag = CISS_SG_4; 2701 else if (nseg <= 8) 2702 cr->cr_sg_tag = CISS_SG_8; 2703 else if (nseg <= 16) 2704 cr->cr_sg_tag = CISS_SG_16; 2705 else if (nseg <= 32) 2706 cr->cr_sg_tag = CISS_SG_32; 2707 else 2708 cr->cr_sg_tag = CISS_SG_MAX; 2709 2710 /* 2711 * Post the command to the adapter. 2712 */ 2713 cr->cr_flags |= CISS_REQ_BUSY; 2714 if (sc->ciss_perf) 2715 CISS_TL_PERF_POST_CMD(sc, cr); 2716 else 2717 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2718 } 2719 2720 /************************************************************************ 2721 * Unmap a request from bus-visible space. 2722 */ 2723 static void 2724 ciss_unmap_request(struct ciss_request *cr) 2725 { 2726 struct ciss_softc *sc; 2727 2728 debug_called(2); 2729 2730 sc = cr->cr_sc; 2731 2732 /* check that unmapping is necessary */ 2733 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2734 return; 2735 2736 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2737 BUS_DMASYNC_POSTWRITE); 2738 2739 if (cr->cr_data == NULL) 2740 goto out; 2741 2742 if (cr->cr_flags & CISS_REQ_DATAIN) 2743 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2744 if (cr->cr_flags & CISS_REQ_DATAOUT) 2745 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2746 2747 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2748 out: 2749 cr->cr_flags &= ~CISS_REQ_MAPPED; 2750 } 2751 2752 /************************************************************************ 2753 * Attach the driver to CAM. 2754 * 2755 * We put all the logical drives on a single SCSI bus. 2756 */ 2757 static int 2758 ciss_cam_init(struct ciss_softc *sc) 2759 { 2760 int i, maxbus; 2761 2762 debug_called(1); 2763 2764 /* 2765 * Allocate a devq. We can reuse this for the masked physical 2766 * devices if we decide to export these as well. 2767 */ 2768 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2769 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2770 return(ENOMEM); 2771 } 2772 2773 /* 2774 * Create a SIM. 2775 * 2776 * This naturally wastes a bit of memory. The alternative is to allocate 2777 * and register each bus as it is found, and then track them on a linked 2778 * list. Unfortunately, the driver has a few places where it needs to 2779 * look up the SIM based solely on bus number, and it's unclear whether 2780 * a list traversal would work for these situations. 2781 */ 2782 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2783 CISS_PHYSICAL_BASE); 2784 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2785 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2786 2787 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2788 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2789 "ciss", sc, 2790 device_get_unit(sc->ciss_dev), 2791 &sc->ciss_lock, 2792 2, 2793 sc->ciss_max_requests - 2, 2794 sc->ciss_cam_devq)) == NULL) { 2795 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2796 return(ENOMEM); 2797 } 2798 2799 /* 2800 * Register bus with this SIM. 2801 */ 2802 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2803 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2804 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2805 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2806 lockmgr(&sc->ciss_lock, LK_RELEASE); 2807 return (ENXIO); 2808 } 2809 } 2810 lockmgr(&sc->ciss_lock, LK_RELEASE); 2811 } 2812 2813 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2814 CISS_PHYSICAL_BASE; i++) { 2815 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2816 "ciss", sc, 2817 device_get_unit(sc->ciss_dev), 2818 &sc->ciss_lock, 1, 2819 sc->ciss_max_requests - 2, 2820 sc->ciss_cam_devq)) == NULL) { 2821 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2822 return (ENOMEM); 2823 } 2824 2825 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2826 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2827 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2828 lockmgr(&sc->ciss_lock, LK_RELEASE); 2829 return (ENXIO); 2830 } 2831 lockmgr(&sc->ciss_lock, LK_RELEASE); 2832 } 2833 2834 /* 2835 * Initiate a rescan of the bus. 2836 */ 2837 ciss_cam_rescan_all(sc); 2838 2839 return(0); 2840 } 2841 2842 /************************************************************************ 2843 * Initiate a rescan of the 'logical devices' SIM 2844 */ 2845 static void 2846 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2847 { 2848 union ccb *ccb; 2849 2850 debug_called(1); 2851 2852 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2853 2854 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2855 cam_sim_path(sc->ciss_cam_sim[bus]), 2856 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2857 ciss_printf(sc, "rescan failed (can't create path)\n"); 2858 kfree(ccb, M_TEMP); 2859 return; 2860 } 2861 2862 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 2863 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2864 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2865 ccb->crcn.flags = CAM_FLAG_NONE; 2866 xpt_action(ccb); 2867 2868 /* scan is now in progress */ 2869 } 2870 2871 static void 2872 ciss_cam_rescan_all(struct ciss_softc *sc) 2873 { 2874 int i; 2875 2876 /* Rescan the logical buses */ 2877 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2878 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2879 /* Rescan the physical buses */ 2880 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2881 CISS_PHYSICAL_BASE; i++) 2882 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2883 } 2884 2885 static void 2886 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2887 { 2888 xpt_free_path(ccb->ccb_h.path); 2889 kfree(ccb, M_TEMP); 2890 } 2891 2892 /************************************************************************ 2893 * Handle requests coming from CAM 2894 */ 2895 static void 2896 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2897 { 2898 struct ciss_softc *sc; 2899 struct ccb_scsiio *csio; 2900 int bus, target; 2901 int physical; 2902 2903 sc = cam_sim_softc(sim); 2904 bus = cam_sim_bus(sim); 2905 csio = (struct ccb_scsiio *)&ccb->csio; 2906 target = csio->ccb_h.target_id; 2907 physical = CISS_IS_PHYSICAL(bus); 2908 2909 switch (ccb->ccb_h.func_code) { 2910 2911 /* perform SCSI I/O */ 2912 case XPT_SCSI_IO: 2913 if (!ciss_cam_action_io(sim, csio)) 2914 return; 2915 break; 2916 2917 /* perform geometry calculations */ 2918 case XPT_CALC_GEOMETRY: 2919 { 2920 struct ccb_calc_geometry *ccg = &ccb->ccg; 2921 struct ciss_ldrive *ld; 2922 2923 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2924 2925 ld = NULL; 2926 if (!physical) 2927 ld = &sc->ciss_logical[bus][target]; 2928 2929 /* 2930 * Use the cached geometry settings unless the fault tolerance 2931 * is invalid. 2932 */ 2933 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2934 u_int32_t secs_per_cylinder; 2935 2936 ccg->heads = 255; 2937 ccg->secs_per_track = 32; 2938 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2939 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2940 } else { 2941 ccg->heads = ld->cl_geometry.heads; 2942 ccg->secs_per_track = ld->cl_geometry.sectors; 2943 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2944 } 2945 ccb->ccb_h.status = CAM_REQ_CMP; 2946 break; 2947 } 2948 2949 /* handle path attribute inquiry */ 2950 case XPT_PATH_INQ: 2951 { 2952 struct ccb_pathinq *cpi = &ccb->cpi; 2953 2954 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2955 2956 cpi->version_num = 1; 2957 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2958 cpi->target_sprt = 0; 2959 cpi->hba_misc = 0; 2960 cpi->max_target = CISS_MAX_LOGICAL; 2961 cpi->max_lun = 0; /* 'logical drive' channel only */ 2962 cpi->initiator_id = CISS_MAX_LOGICAL; 2963 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2964 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2965 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2966 cpi->unit_number = cam_sim_unit(sim); 2967 cpi->bus_id = cam_sim_bus(sim); 2968 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2969 cpi->transport = XPORT_SPI; 2970 cpi->transport_version = 2; 2971 cpi->protocol = PROTO_SCSI; 2972 cpi->protocol_version = SCSI_REV_2; 2973 #if 0 /* XXX swildner */ 2974 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2975 #endif 2976 ccb->ccb_h.status = CAM_REQ_CMP; 2977 break; 2978 } 2979 2980 case XPT_GET_TRAN_SETTINGS: 2981 { 2982 struct ccb_trans_settings *cts = &ccb->cts; 2983 #ifdef CISS_DEBUG 2984 int bus, target; 2985 #endif 2986 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2987 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2988 2989 #ifdef CISS_DEBUG 2990 bus = cam_sim_bus(sim); 2991 target = cts->ccb_h.target_id; 2992 #endif 2993 2994 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2995 /* disconnect always OK */ 2996 cts->protocol = PROTO_SCSI; 2997 cts->protocol_version = SCSI_REV_2; 2998 cts->transport = XPORT_SPI; 2999 cts->transport_version = 2; 3000 3001 spi->valid = CTS_SPI_VALID_DISC; 3002 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3003 3004 scsi->valid = CTS_SCSI_VALID_TQ; 3005 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3006 3007 cts->ccb_h.status = CAM_REQ_CMP; 3008 break; 3009 } 3010 3011 default: /* we can't do this */ 3012 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3013 ccb->ccb_h.status = CAM_REQ_INVALID; 3014 break; 3015 } 3016 3017 xpt_done(ccb); 3018 } 3019 3020 /************************************************************************ 3021 * Handle a CAM SCSI I/O request. 3022 */ 3023 static int 3024 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3025 { 3026 struct ciss_softc *sc; 3027 int bus, target; 3028 struct ciss_request *cr; 3029 struct ciss_command *cc; 3030 int error; 3031 3032 sc = cam_sim_softc(sim); 3033 bus = cam_sim_bus(sim); 3034 target = csio->ccb_h.target_id; 3035 3036 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3037 3038 /* check that the CDB pointer is not to a physical address */ 3039 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3040 debug(3, " CDB pointer is to physical address"); 3041 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3042 } 3043 3044 /* if there is data transfer, it must be to/from a virtual address */ 3045 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3046 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3047 debug(3, " data pointer is to physical address"); 3048 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3049 } 3050 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3051 debug(3, " data has premature s/g setup"); 3052 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3053 } 3054 } 3055 3056 /* abandon aborted ccbs or those that have failed validation */ 3057 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3058 debug(3, "abandoning CCB due to abort/validation failure"); 3059 return(EINVAL); 3060 } 3061 3062 /* handle emulation of some SCSI commands ourself */ 3063 if (ciss_cam_emulate(sc, csio)) 3064 return(0); 3065 3066 /* 3067 * Get a request to manage this command. If we can't, return the 3068 * ccb, freeze the queue and flag so that we unfreeze it when a 3069 * request completes. 3070 */ 3071 if ((error = ciss_get_request(sc, &cr)) != 0) { 3072 xpt_freeze_simq(sim, 1); 3073 sc->ciss_flags |= CISS_FLAG_BUSY; 3074 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3075 return(error); 3076 } 3077 3078 /* 3079 * Build the command. 3080 */ 3081 cc = cr->cr_cc; 3082 cr->cr_data = csio->data_ptr; 3083 cr->cr_length = csio->dxfer_len; 3084 cr->cr_complete = ciss_cam_complete; 3085 cr->cr_private = csio; 3086 3087 /* 3088 * Target the right logical volume. 3089 */ 3090 if (CISS_IS_PHYSICAL(bus)) 3091 cc->header.address = 3092 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3093 else 3094 cc->header.address = 3095 sc->ciss_logical[bus][target].cl_address; 3096 cc->cdb.cdb_length = csio->cdb_len; 3097 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3098 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3099 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3100 cr->cr_flags = CISS_REQ_DATAOUT; 3101 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3102 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3103 cr->cr_flags = CISS_REQ_DATAIN; 3104 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3105 } else { 3106 cr->cr_flags = 0; 3107 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3108 } 3109 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3110 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3111 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3112 } else { 3113 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3114 } 3115 3116 /* 3117 * Submit the request to the adapter. 3118 * 3119 * Note that this may fail if we're unable to map the request (and 3120 * if we ever learn a transport layer other than simple, may fail 3121 * if the adapter rejects the command). 3122 */ 3123 if ((error = ciss_start(cr)) != 0) { 3124 xpt_freeze_simq(sim, 1); 3125 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3126 if (error == EINPROGRESS) { 3127 error = 0; 3128 } else { 3129 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3130 ciss_release_request(cr); 3131 } 3132 return(error); 3133 } 3134 3135 return(0); 3136 } 3137 3138 /************************************************************************ 3139 * Emulate SCSI commands the adapter doesn't handle as we might like. 3140 */ 3141 static int 3142 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3143 { 3144 int bus, target; 3145 3146 target = csio->ccb_h.target_id; 3147 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3148 3149 if (CISS_IS_PHYSICAL(bus)) { 3150 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3151 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3152 xpt_done((union ccb *)csio); 3153 return(1); 3154 } else 3155 return(0); 3156 } 3157 3158 /* 3159 * Handle requests for volumes that don't exist or are not online. 3160 * A selection timeout is slightly better than an illegal request. 3161 * Other errors might be better. 3162 */ 3163 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3164 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3165 xpt_done((union ccb *)csio); 3166 return(1); 3167 } 3168 3169 /* if we have to fake Synchronise Cache */ 3170 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3171 /* 3172 * If this is a Synchronise Cache command, typically issued when 3173 * a device is closed, flush the adapter and complete now. 3174 */ 3175 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3176 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3177 ciss_flush_adapter(sc); 3178 csio->ccb_h.status |= CAM_REQ_CMP; 3179 xpt_done((union ccb *)csio); 3180 return(1); 3181 } 3182 } 3183 3184 return(0); 3185 } 3186 3187 /************************************************************************ 3188 * Check for possibly-completed commands. 3189 */ 3190 static void 3191 ciss_cam_poll(struct cam_sim *sim) 3192 { 3193 cr_qhead_t qh; 3194 struct ciss_softc *sc = cam_sim_softc(sim); 3195 3196 debug_called(2); 3197 3198 STAILQ_INIT(&qh); 3199 if (sc->ciss_perf) 3200 ciss_perf_done(sc, &qh); 3201 else 3202 ciss_done(sc, &qh); 3203 ciss_complete(sc, &qh); 3204 } 3205 3206 /************************************************************************ 3207 * Handle completion of a command - pass results back through the CCB 3208 */ 3209 static void 3210 ciss_cam_complete(struct ciss_request *cr) 3211 { 3212 struct ciss_softc *sc; 3213 struct ciss_command *cc; 3214 struct ciss_error_info *ce; 3215 struct ccb_scsiio *csio; 3216 int scsi_status; 3217 int command_status; 3218 3219 debug_called(2); 3220 3221 sc = cr->cr_sc; 3222 cc = cr->cr_cc; 3223 ce = (struct ciss_error_info *)&(cc->sg[0]); 3224 csio = (struct ccb_scsiio *)cr->cr_private; 3225 3226 /* 3227 * Extract status values from request. 3228 */ 3229 ciss_report_request(cr, &command_status, &scsi_status); 3230 csio->scsi_status = scsi_status; 3231 3232 /* 3233 * Handle specific SCSI status values. 3234 */ 3235 switch(scsi_status) { 3236 /* no status due to adapter error */ 3237 case -1: 3238 debug(0, "adapter error"); 3239 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3240 break; 3241 3242 /* no status due to command completed OK */ 3243 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3244 debug(2, "SCSI_STATUS_OK"); 3245 csio->ccb_h.status |= CAM_REQ_CMP; 3246 break; 3247 3248 /* check condition, sense data included */ 3249 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3250 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3251 ce->sense_length, ce->residual_count); 3252 bzero(&csio->sense_data, SSD_FULL_SIZE); 3253 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3254 if (csio->sense_len > ce->sense_length) 3255 csio->sense_resid = csio->sense_len - ce->sense_length; 3256 else 3257 csio->sense_resid = 0; 3258 csio->resid = ce->residual_count; 3259 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3260 #ifdef CISS_DEBUG 3261 { 3262 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3263 debug(0, "sense key %x", sns->flags & SSD_KEY); 3264 } 3265 #endif 3266 break; 3267 3268 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3269 debug(0, "SCSI_STATUS_BUSY"); 3270 csio->ccb_h.status |= CAM_SCSI_BUSY; 3271 break; 3272 3273 default: 3274 debug(0, "unknown status 0x%x", csio->scsi_status); 3275 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3276 break; 3277 } 3278 3279 /* handle post-command fixup */ 3280 ciss_cam_complete_fixup(sc, csio); 3281 3282 ciss_release_request(cr); 3283 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3284 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3285 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3286 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3287 else 3288 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3289 } 3290 xpt_done((union ccb *)csio); 3291 } 3292 3293 /******************************************************************************** 3294 * Fix up the result of some commands here. 3295 */ 3296 static void 3297 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3298 { 3299 struct scsi_inquiry_data *inq; 3300 struct ciss_ldrive *cl; 3301 uint8_t *cdb; 3302 int bus, target; 3303 3304 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3305 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3306 if (cdb[0] == INQUIRY && 3307 (cdb[1] & SI_EVPD) == 0 && 3308 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3309 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3310 3311 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3312 target = csio->ccb_h.target_id; 3313 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3314 3315 /* 3316 * Don't let hard drives be seen by the DA driver. They will still be 3317 * attached by the PASS driver. 3318 */ 3319 if (CISS_IS_PHYSICAL(bus)) { 3320 if (SID_TYPE(inq) == T_DIRECT) 3321 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3322 return; 3323 } 3324 3325 cl = &sc->ciss_logical[bus][target]; 3326 3327 padstr(inq->vendor, "COMPAQ", 8); 3328 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3329 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3330 } 3331 } 3332 3333 3334 /******************************************************************************** 3335 * Find a peripheral attached at (target) 3336 */ 3337 static struct cam_periph * 3338 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3339 { 3340 struct cam_periph *periph; 3341 struct cam_path *path; 3342 int status; 3343 3344 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3345 target, 0); 3346 if (status == CAM_REQ_CMP) { 3347 periph = cam_periph_find(path, NULL); 3348 xpt_free_path(path); 3349 } else { 3350 periph = NULL; 3351 } 3352 return(periph); 3353 } 3354 3355 /******************************************************************************** 3356 * Name the device at (target) 3357 * 3358 * XXX is this strictly correct? 3359 */ 3360 static int 3361 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3362 { 3363 struct cam_periph *periph; 3364 3365 if (CISS_IS_PHYSICAL(bus)) 3366 return (0); 3367 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3368 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3369 periph->periph_name, periph->unit_number); 3370 return(0); 3371 } 3372 sc->ciss_logical[bus][target].cl_name[0] = 0; 3373 return(ENOENT); 3374 } 3375 3376 /************************************************************************ 3377 * Periodic status monitoring. 3378 */ 3379 static void 3380 ciss_periodic(void *arg) 3381 { 3382 struct ciss_softc *sc = (struct ciss_softc *)arg; 3383 struct ciss_request *cr = NULL; 3384 struct ciss_command *cc = NULL; 3385 int error = 0; 3386 3387 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 3388 debug_called(1); 3389 3390 /* 3391 * Check the adapter heartbeat. 3392 */ 3393 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3394 sc->ciss_heart_attack++; 3395 debug(0, "adapter heart attack in progress 0x%x/%d", 3396 sc->ciss_heartbeat, sc->ciss_heart_attack); 3397 if (sc->ciss_heart_attack == 3) { 3398 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3399 ciss_disable_adapter(sc); 3400 lockmgr(&sc->ciss_lock, LK_RELEASE); 3401 return; 3402 } 3403 } else { 3404 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3405 sc->ciss_heart_attack = 0; 3406 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3407 } 3408 3409 /* 3410 * Send the NOP message and wait for a response. 3411 */ 3412 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3413 cc = cr->cr_cc; 3414 cr->cr_complete = ciss_nop_complete; 3415 cc->cdb.cdb_length = 1; 3416 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3417 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3418 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3419 cc->cdb.timeout = 0; 3420 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3421 3422 if ((error = ciss_start(cr)) != 0) { 3423 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3424 } 3425 } 3426 3427 /* 3428 * If the notify event request has died for some reason, or has 3429 * not started yet, restart it. 3430 */ 3431 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3432 debug(0, "(re)starting Event Notify chain"); 3433 ciss_notify_event(sc); 3434 } 3435 lockmgr(&sc->ciss_lock, LK_RELEASE); 3436 3437 /* 3438 * Reschedule. 3439 */ 3440 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3441 } 3442 3443 static void 3444 ciss_nop_complete(struct ciss_request *cr) 3445 { 3446 struct ciss_softc *sc; 3447 static int first_time = 1; 3448 3449 sc = cr->cr_sc; 3450 if (ciss_report_request(cr, NULL, NULL) != 0) { 3451 if (first_time == 1) { 3452 first_time = 0; 3453 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3454 } 3455 } 3456 3457 ciss_release_request(cr); 3458 } 3459 3460 /************************************************************************ 3461 * Disable the adapter. 3462 * 3463 * The all requests in completed queue is failed with hardware error. 3464 * This will cause failover in a multipath configuration. 3465 */ 3466 static void 3467 ciss_disable_adapter(struct ciss_softc *sc) 3468 { 3469 cr_qhead_t qh; 3470 struct ciss_request *cr; 3471 struct ciss_command *cc; 3472 struct ciss_error_info *ce; 3473 int i; 3474 3475 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3476 pci_disable_busmaster(sc->ciss_dev); 3477 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3478 3479 for (i = 1; i < sc->ciss_max_requests; i++) { 3480 cr = &sc->ciss_request[i]; 3481 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3482 continue; 3483 3484 cc = cr->cr_cc; 3485 ce = (struct ciss_error_info *)&(cc->sg[0]); 3486 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3487 ciss_enqueue_complete(cr, &qh); 3488 } 3489 3490 for (;;) { 3491 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3492 break; 3493 3494 /* 3495 * If the request has a callback, invoke it. 3496 */ 3497 if (cr->cr_complete != NULL) { 3498 cr->cr_complete(cr); 3499 continue; 3500 } 3501 3502 /* 3503 * If someone is sleeping on this request, wake them up. 3504 */ 3505 if (cr->cr_flags & CISS_REQ_SLEEP) { 3506 cr->cr_flags &= ~CISS_REQ_SLEEP; 3507 wakeup(cr); 3508 continue; 3509 } 3510 } 3511 } 3512 3513 /************************************************************************ 3514 * Request a notification response from the adapter. 3515 * 3516 * If (cr) is NULL, this is the first request of the adapter, so 3517 * reset the adapter's message pointer and start with the oldest 3518 * message available. 3519 */ 3520 static void 3521 ciss_notify_event(struct ciss_softc *sc) 3522 { 3523 struct ciss_request *cr; 3524 struct ciss_command *cc; 3525 struct ciss_notify_cdb *cnc; 3526 int error; 3527 3528 debug_called(1); 3529 3530 cr = sc->ciss_periodic_notify; 3531 3532 /* get a request if we don't already have one */ 3533 if (cr == NULL) { 3534 if ((error = ciss_get_request(sc, &cr)) != 0) { 3535 debug(0, "can't get notify event request"); 3536 goto out; 3537 } 3538 sc->ciss_periodic_notify = cr; 3539 cr->cr_complete = ciss_notify_complete; 3540 debug(1, "acquired request %d", cr->cr_tag); 3541 } 3542 3543 /* 3544 * Get a databuffer if we don't already have one, note that the 3545 * adapter command wants a larger buffer than the actual 3546 * structure. 3547 */ 3548 if (cr->cr_data == NULL) { 3549 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3550 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3551 } 3552 3553 /* re-setup the request's command (since we never release it) XXX overkill*/ 3554 ciss_preen_command(cr); 3555 3556 /* (re)build the notify event command */ 3557 cc = cr->cr_cc; 3558 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3559 cc->header.address.physical.bus = 0; 3560 cc->header.address.physical.target = 0; 3561 3562 cc->cdb.cdb_length = sizeof(*cnc); 3563 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3564 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3565 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3566 cc->cdb.timeout = 0; /* no timeout, we hope */ 3567 3568 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3569 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3570 cnc->opcode = CISS_OPCODE_READ; 3571 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3572 cnc->timeout = 0; /* no timeout, we hope */ 3573 cnc->synchronous = 0; 3574 cnc->ordered = 0; 3575 cnc->seek_to_oldest = 0; 3576 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3577 cnc->new_only = 1; 3578 else 3579 cnc->new_only = 0; 3580 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3581 3582 /* submit the request */ 3583 error = ciss_start(cr); 3584 3585 out: 3586 if (error) { 3587 if (cr != NULL) { 3588 if (cr->cr_data != NULL) 3589 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3590 ciss_release_request(cr); 3591 } 3592 sc->ciss_periodic_notify = NULL; 3593 debug(0, "can't submit notify event request"); 3594 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3595 } else { 3596 debug(1, "notify event submitted"); 3597 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3598 } 3599 } 3600 3601 static void 3602 ciss_notify_complete(struct ciss_request *cr) 3603 { 3604 struct ciss_notify *cn; 3605 struct ciss_softc *sc; 3606 int scsi_status; 3607 int command_status; 3608 debug_called(1); 3609 3610 cn = (struct ciss_notify *)cr->cr_data; 3611 sc = cr->cr_sc; 3612 3613 /* 3614 * Report request results, decode status. 3615 */ 3616 ciss_report_request(cr, &command_status, &scsi_status); 3617 3618 /* 3619 * Abort the chain on a fatal error. 3620 * 3621 * XXX which of these are actually errors? 3622 */ 3623 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3624 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3625 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3626 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3627 ciss_name_command_status(command_status)); 3628 ciss_release_request(cr); 3629 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3630 return; 3631 } 3632 3633 /* 3634 * If the adapter gave us a text message, print it. 3635 */ 3636 if (cn->message[0] != 0) 3637 ciss_printf(sc, "*** %.80s\n", cn->message); 3638 3639 debug(0, "notify event class %d subclass %d detail %d", 3640 cn->class, cn->subclass, cn->detail); 3641 3642 /* 3643 * If the response indicates that the notifier has been aborted, 3644 * release the notifier command. 3645 */ 3646 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3647 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3648 (cn->detail == 1)) { 3649 debug(0, "notifier exiting"); 3650 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3651 ciss_release_request(cr); 3652 sc->ciss_periodic_notify = NULL; 3653 wakeup(&sc->ciss_periodic_notify); 3654 } else { 3655 /* Handle notify events in a kernel thread */ 3656 ciss_enqueue_notify(cr); 3657 sc->ciss_periodic_notify = NULL; 3658 wakeup(&sc->ciss_periodic_notify); 3659 wakeup(&sc->ciss_notify); 3660 } 3661 /* 3662 * Send a new notify event command, if we're not aborting. 3663 */ 3664 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3665 ciss_notify_event(sc); 3666 } 3667 } 3668 3669 /************************************************************************ 3670 * Abort the Notify Event chain. 3671 * 3672 * Note that we can't just abort the command in progress; we have to 3673 * explicitly issue an Abort Notify Event command in order for the 3674 * adapter to clean up correctly. 3675 * 3676 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3677 * the chain will not restart itself. 3678 */ 3679 static int 3680 ciss_notify_abort(struct ciss_softc *sc) 3681 { 3682 struct ciss_request *cr; 3683 struct ciss_command *cc; 3684 struct ciss_notify_cdb *cnc; 3685 int error, command_status, scsi_status; 3686 3687 debug_called(1); 3688 3689 cr = NULL; 3690 error = 0; 3691 3692 /* verify that there's an outstanding command */ 3693 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3694 goto out; 3695 3696 /* get a command to issue the abort with */ 3697 if ((error = ciss_get_request(sc, &cr))) 3698 goto out; 3699 3700 /* get a buffer for the result */ 3701 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3702 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3703 3704 /* build the CDB */ 3705 cc = cr->cr_cc; 3706 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3707 cc->header.address.physical.bus = 0; 3708 cc->header.address.physical.target = 0; 3709 cc->cdb.cdb_length = sizeof(*cnc); 3710 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3711 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3712 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3713 cc->cdb.timeout = 0; /* no timeout, we hope */ 3714 3715 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3716 bzero(cnc, sizeof(*cnc)); 3717 cnc->opcode = CISS_OPCODE_WRITE; 3718 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3719 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3720 3721 ciss_print_request(cr); 3722 3723 /* 3724 * Submit the request and wait for it to complete. 3725 */ 3726 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3727 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3728 goto out; 3729 } 3730 3731 /* 3732 * Check response. 3733 */ 3734 ciss_report_request(cr, &command_status, &scsi_status); 3735 switch(command_status) { 3736 case CISS_CMD_STATUS_SUCCESS: 3737 break; 3738 case CISS_CMD_STATUS_INVALID_COMMAND: 3739 /* 3740 * Some older adapters don't support the CISS version of this 3741 * command. Fall back to using the BMIC version. 3742 */ 3743 error = ciss_notify_abort_bmic(sc); 3744 if (error != 0) 3745 goto out; 3746 break; 3747 3748 case CISS_CMD_STATUS_TARGET_STATUS: 3749 /* 3750 * This can happen if the adapter thinks there wasn't an outstanding 3751 * Notify Event command but we did. We clean up here. 3752 */ 3753 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3754 if (sc->ciss_periodic_notify != NULL) 3755 ciss_release_request(sc->ciss_periodic_notify); 3756 error = 0; 3757 goto out; 3758 } 3759 /* FALLTHROUGH */ 3760 3761 default: 3762 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3763 ciss_name_command_status(command_status)); 3764 error = EIO; 3765 goto out; 3766 } 3767 3768 /* 3769 * Sleep waiting for the notifier command to complete. Note 3770 * that if it doesn't, we may end up in a bad situation, since 3771 * the adapter may deliver it later. Also note that the adapter 3772 * requires the Notify Event command to be cancelled in order to 3773 * maintain internal bookkeeping. 3774 */ 3775 while (sc->ciss_periodic_notify != NULL) { 3776 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5); 3777 if (error == EWOULDBLOCK) { 3778 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3779 break; 3780 } 3781 } 3782 3783 out: 3784 /* release the cancel request */ 3785 if (cr != NULL) { 3786 if (cr->cr_data != NULL) 3787 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3788 ciss_release_request(cr); 3789 } 3790 if (error == 0) 3791 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3792 return(error); 3793 } 3794 3795 /************************************************************************ 3796 * Abort the Notify Event chain using a BMIC command. 3797 */ 3798 static int 3799 ciss_notify_abort_bmic(struct ciss_softc *sc) 3800 { 3801 struct ciss_request *cr; 3802 int error, command_status; 3803 3804 debug_called(1); 3805 3806 cr = NULL; 3807 error = 0; 3808 3809 /* verify that there's an outstanding command */ 3810 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3811 goto out; 3812 3813 /* 3814 * Build a BMIC command to cancel the Notify on Event command. 3815 * 3816 * Note that we are sending a CISS opcode here. Odd. 3817 */ 3818 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3819 NULL, 0)) != 0) 3820 goto out; 3821 3822 /* 3823 * Submit the request and wait for it to complete. 3824 */ 3825 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3826 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3827 goto out; 3828 } 3829 3830 /* 3831 * Check response. 3832 */ 3833 ciss_report_request(cr, &command_status, NULL); 3834 switch(command_status) { 3835 case CISS_CMD_STATUS_SUCCESS: 3836 break; 3837 default: 3838 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3839 ciss_name_command_status(command_status)); 3840 error = EIO; 3841 goto out; 3842 } 3843 3844 out: 3845 if (cr != NULL) 3846 ciss_release_request(cr); 3847 return(error); 3848 } 3849 3850 /************************************************************************ 3851 * Handle rescanning all the logical volumes when a notify event 3852 * causes the drives to come online or offline. 3853 */ 3854 static void 3855 ciss_notify_rescan_logical(struct ciss_softc *sc) 3856 { 3857 struct ciss_lun_report *cll; 3858 struct ciss_ldrive *ld; 3859 int i, j, ndrives; 3860 3861 /* 3862 * We must rescan all logical volumes to get the right logical 3863 * drive address. 3864 */ 3865 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3866 CISS_MAX_LOGICAL); 3867 if (cll == NULL) 3868 return; 3869 3870 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3871 3872 /* 3873 * Delete any of the drives which were destroyed by the 3874 * firmware. 3875 */ 3876 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3877 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3878 ld = &sc->ciss_logical[i][j]; 3879 3880 if (ld->cl_update == 0) 3881 continue; 3882 3883 if (ld->cl_status != CISS_LD_ONLINE) { 3884 ciss_cam_rescan_target(sc, i, j); 3885 ld->cl_update = 0; 3886 if (ld->cl_ldrive) 3887 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3888 if (ld->cl_lstatus) 3889 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3890 3891 ld->cl_ldrive = NULL; 3892 ld->cl_lstatus = NULL; 3893 } 3894 } 3895 } 3896 3897 /* 3898 * Scan for new drives. 3899 */ 3900 for (i = 0; i < ndrives; i++) { 3901 int bus, target; 3902 3903 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3904 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3905 ld = &sc->ciss_logical[bus][target]; 3906 3907 if (ld->cl_update == 0) 3908 continue; 3909 3910 ld->cl_update = 0; 3911 ld->cl_address = cll->lun[i]; 3912 ld->cl_controller = &sc->ciss_controllers[bus]; 3913 if (ciss_identify_logical(sc, ld) == 0) { 3914 ciss_cam_rescan_target(sc, bus, target); 3915 } 3916 } 3917 kfree(cll, CISS_MALLOC_CLASS); 3918 } 3919 3920 /************************************************************************ 3921 * Handle a notify event relating to the status of a logical drive. 3922 * 3923 * XXX need to be able to defer some of these to properly handle 3924 * calling the "ID Physical drive" command, unless the 'extended' 3925 * drive IDs are always in BIG_MAP format. 3926 */ 3927 static void 3928 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3929 { 3930 struct ciss_ldrive *ld; 3931 int ostatus, bus, target; 3932 3933 debug_called(2); 3934 3935 bus = cn->device.physical.bus; 3936 target = cn->data.logical_status.logical_drive; 3937 ld = &sc->ciss_logical[bus][target]; 3938 3939 switch (cn->subclass) { 3940 case CISS_NOTIFY_LOGICAL_STATUS: 3941 switch (cn->detail) { 3942 case 0: 3943 ciss_name_device(sc, bus, target); 3944 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3945 cn->data.logical_status.logical_drive, ld->cl_name, 3946 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3947 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3948 cn->data.logical_status.spare_state, 3949 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3950 3951 /* 3952 * Update our idea of the drive's status. 3953 */ 3954 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3955 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3956 if (ld->cl_lstatus != NULL) 3957 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3958 3959 /* 3960 * Have CAM rescan the drive if its status has changed. 3961 */ 3962 if (ostatus != ld->cl_status) { 3963 ld->cl_update = 1; 3964 ciss_notify_rescan_logical(sc); 3965 } 3966 3967 break; 3968 3969 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3970 ciss_name_device(sc, bus, target); 3971 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3972 cn->data.logical_status.logical_drive, ld->cl_name); 3973 ciss_accept_media(sc, ld); 3974 3975 ld->cl_update = 1; 3976 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3977 ciss_notify_rescan_logical(sc); 3978 break; 3979 3980 case 2: 3981 case 3: 3982 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3983 cn->data.rebuild_aborted.logical_drive, 3984 ld->cl_name, 3985 (cn->detail == 2) ? "read" : "write"); 3986 break; 3987 } 3988 break; 3989 3990 case CISS_NOTIFY_LOGICAL_ERROR: 3991 if (cn->detail == 0) { 3992 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3993 cn->data.io_error.logical_drive, 3994 ld->cl_name, 3995 cn->data.io_error.failure_bus, 3996 cn->data.io_error.failure_drive); 3997 /* XXX should we take the drive down at this point, or will we be told? */ 3998 } 3999 break; 4000 4001 case CISS_NOTIFY_LOGICAL_SURFACE: 4002 if (cn->detail == 0) 4003 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4004 cn->data.consistency_completed.logical_drive, 4005 ld->cl_name); 4006 break; 4007 } 4008 } 4009 4010 /************************************************************************ 4011 * Handle a notify event relating to the status of a physical drive. 4012 */ 4013 static void 4014 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4015 { 4016 } 4017 4018 /************************************************************************ 4019 * Handle a notify event relating to the status of a physical drive. 4020 */ 4021 static void 4022 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4023 { 4024 struct ciss_lun_report *cll = NULL; 4025 int bus, target; 4026 4027 switch (cn->subclass) { 4028 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4029 case CISS_NOTIFY_HOTPLUG_NONDISK: 4030 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4031 target = 4032 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4033 4034 if (cn->detail == 0) { 4035 /* 4036 * Mark the device offline so that it'll start producing selection 4037 * timeouts to the upper layer. 4038 */ 4039 if ((bus >= 0) && (target >= 0)) 4040 sc->ciss_physical[bus][target].cp_online = 0; 4041 } else { 4042 /* 4043 * Rescan the physical lun list for new items 4044 */ 4045 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4046 CISS_MAX_PHYSICAL); 4047 if (cll == NULL) { 4048 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4049 break; 4050 } 4051 ciss_filter_physical(sc, cll); 4052 } 4053 break; 4054 4055 default: 4056 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4057 return; 4058 } 4059 4060 if (cll != NULL) 4061 kfree(cll, CISS_MALLOC_CLASS); 4062 } 4063 4064 /************************************************************************ 4065 * Handle deferred processing of notify events. Notify events may need 4066 * sleep which is unsafe during an interrupt. 4067 */ 4068 static void 4069 ciss_notify_thread(void *arg) 4070 { 4071 struct ciss_softc *sc; 4072 struct ciss_request *cr; 4073 struct ciss_notify *cn; 4074 4075 sc = (struct ciss_softc *)arg; 4076 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4077 4078 for (;;) { 4079 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4080 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4081 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0); 4082 } 4083 4084 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4085 break; 4086 4087 cr = ciss_dequeue_notify(sc); 4088 4089 if (cr == NULL) 4090 panic("cr null"); 4091 cn = (struct ciss_notify *)cr->cr_data; 4092 4093 switch (cn->class) { 4094 case CISS_NOTIFY_HOTPLUG: 4095 ciss_notify_hotplug(sc, cn); 4096 break; 4097 case CISS_NOTIFY_LOGICAL: 4098 ciss_notify_logical(sc, cn); 4099 break; 4100 case CISS_NOTIFY_PHYSICAL: 4101 ciss_notify_physical(sc, cn); 4102 break; 4103 } 4104 4105 ciss_release_request(cr); 4106 4107 } 4108 sc->ciss_notify_thread = NULL; 4109 wakeup(&sc->ciss_notify_thread); 4110 4111 lockmgr(&sc->ciss_lock, LK_RELEASE); 4112 kthread_exit(); 4113 } 4114 4115 /************************************************************************ 4116 * Start the notification kernel thread. 4117 */ 4118 static void 4119 ciss_spawn_notify_thread(struct ciss_softc *sc) 4120 { 4121 4122 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 4123 &sc->ciss_notify_thread, "ciss_notify%d", 4124 device_get_unit(sc->ciss_dev))) 4125 panic("Could not create notify thread\n"); 4126 } 4127 4128 /************************************************************************ 4129 * Kill the notification kernel thread. 4130 */ 4131 static void 4132 ciss_kill_notify_thread(struct ciss_softc *sc) 4133 { 4134 4135 if (sc->ciss_notify_thread == NULL) 4136 return; 4137 4138 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4139 wakeup(&sc->ciss_notify); 4140 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0); 4141 } 4142 4143 /************************************************************************ 4144 * Print a request. 4145 */ 4146 static void 4147 ciss_print_request(struct ciss_request *cr) 4148 { 4149 struct ciss_softc *sc; 4150 struct ciss_command *cc; 4151 int i; 4152 char hexstr[HEX_NCPYLEN(CISS_CDB_BUFFER_SIZE)]; 4153 4154 sc = cr->cr_sc; 4155 cc = cr->cr_cc; 4156 4157 ciss_printf(sc, "REQUEST @ %p\n", cr); 4158 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4159 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4160 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4161 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4162 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4163 switch(cc->header.address.mode.mode) { 4164 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4165 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4166 ciss_printf(sc, " physical bus %d target %d\n", 4167 cc->header.address.physical.bus, cc->header.address.physical.target); 4168 break; 4169 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4170 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4171 break; 4172 } 4173 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4174 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4175 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4176 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4177 cc->cdb.cdb_length, 4178 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4179 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4180 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4181 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4182 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4183 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4184 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4185 ciss_printf(sc, " %s\n", hexncpy(&cc->cdb.cdb[0], cc->cdb.cdb_length, 4186 hexstr, HEX_NCPYLEN(cc->cdb.cdb_length), " ")); 4187 4188 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4189 /* XXX print error info */ 4190 } else { 4191 /* since we don't use chained s/g, don't support it here */ 4192 for (i = 0; i < cc->header.sg_in_list; i++) { 4193 if ((i % 4) == 0) 4194 ciss_printf(sc, " "); 4195 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4196 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4197 kprintf("\n"); 4198 } 4199 } 4200 } 4201 4202 /************************************************************************ 4203 * Print information about the status of a logical drive. 4204 */ 4205 static void 4206 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4207 { 4208 int bus, target, i; 4209 4210 if (ld->cl_lstatus == NULL) { 4211 kprintf("does not exist\n"); 4212 return; 4213 } 4214 4215 /* print drive status */ 4216 switch(ld->cl_lstatus->status) { 4217 case CISS_LSTATUS_OK: 4218 kprintf("online\n"); 4219 break; 4220 case CISS_LSTATUS_INTERIM_RECOVERY: 4221 kprintf("in interim recovery mode\n"); 4222 break; 4223 case CISS_LSTATUS_READY_RECOVERY: 4224 kprintf("ready to begin recovery\n"); 4225 break; 4226 case CISS_LSTATUS_RECOVERING: 4227 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4228 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4229 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4230 bus, target, ld->cl_lstatus->blocks_to_recover); 4231 break; 4232 case CISS_LSTATUS_EXPANDING: 4233 kprintf("being expanded, %u blocks remaining\n", 4234 ld->cl_lstatus->blocks_to_recover); 4235 break; 4236 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4237 kprintf("queued for expansion\n"); 4238 break; 4239 case CISS_LSTATUS_FAILED: 4240 kprintf("queued for expansion\n"); 4241 break; 4242 case CISS_LSTATUS_WRONG_PDRIVE: 4243 kprintf("wrong physical drive inserted\n"); 4244 break; 4245 case CISS_LSTATUS_MISSING_PDRIVE: 4246 kprintf("missing a needed physical drive\n"); 4247 break; 4248 case CISS_LSTATUS_BECOMING_READY: 4249 kprintf("becoming ready\n"); 4250 break; 4251 } 4252 4253 /* print failed physical drives */ 4254 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4255 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4256 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4257 if (bus == -1) 4258 continue; 4259 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4260 ld->cl_lstatus->drive_failure_map[i]); 4261 } 4262 } 4263 4264 #ifdef CISS_DEBUG 4265 #include "opt_ddb.h" 4266 #ifdef DDB 4267 #include <ddb/ddb.h> 4268 /************************************************************************ 4269 * Print information about the controller/driver. 4270 */ 4271 static void 4272 ciss_print_adapter(struct ciss_softc *sc) 4273 { 4274 int i, j; 4275 4276 ciss_printf(sc, "ADAPTER:\n"); 4277 for (i = 0; i < CISSQ_COUNT; i++) { 4278 ciss_printf(sc, "%s %d/%d\n", 4279 i == 0 ? "free" : 4280 i == 1 ? "busy" : "complete", 4281 sc->ciss_qstat[i].q_length, 4282 sc->ciss_qstat[i].q_max); 4283 } 4284 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4285 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4286 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4287 4288 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4289 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4290 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4291 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4292 } 4293 } 4294 4295 /* XXX Should physical drives be printed out here? */ 4296 4297 for (i = 1; i < sc->ciss_max_requests; i++) 4298 ciss_print_request(sc->ciss_request + i); 4299 } 4300 4301 /* DDB hook */ 4302 DB_COMMAND(ciss_prt, db_ciss_prt) 4303 { 4304 struct ciss_softc *sc; 4305 4306 sc = devclass_get_softc(devclass_find("ciss"), 0); 4307 if (sc == NULL) { 4308 kprintf("no ciss controllers\n"); 4309 } else { 4310 ciss_print_adapter(sc); 4311 } 4312 } 4313 #endif 4314 #endif 4315 4316 /************************************************************************ 4317 * Return a name for a logical drive status value. 4318 */ 4319 static const char * 4320 ciss_name_ldrive_status(int status) 4321 { 4322 switch (status) { 4323 case CISS_LSTATUS_OK: 4324 return("OK"); 4325 case CISS_LSTATUS_FAILED: 4326 return("failed"); 4327 case CISS_LSTATUS_NOT_CONFIGURED: 4328 return("not configured"); 4329 case CISS_LSTATUS_INTERIM_RECOVERY: 4330 return("interim recovery"); 4331 case CISS_LSTATUS_READY_RECOVERY: 4332 return("ready for recovery"); 4333 case CISS_LSTATUS_RECOVERING: 4334 return("recovering"); 4335 case CISS_LSTATUS_WRONG_PDRIVE: 4336 return("wrong physical drive inserted"); 4337 case CISS_LSTATUS_MISSING_PDRIVE: 4338 return("missing physical drive"); 4339 case CISS_LSTATUS_EXPANDING: 4340 return("expanding"); 4341 case CISS_LSTATUS_BECOMING_READY: 4342 return("becoming ready"); 4343 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4344 return("queued for expansion"); 4345 } 4346 return("unknown status"); 4347 } 4348 4349 /************************************************************************ 4350 * Return an online/offline/nonexistent value for a logical drive 4351 * status value. 4352 */ 4353 static int 4354 ciss_decode_ldrive_status(int status) 4355 { 4356 switch(status) { 4357 case CISS_LSTATUS_NOT_CONFIGURED: 4358 return(CISS_LD_NONEXISTENT); 4359 4360 case CISS_LSTATUS_OK: 4361 case CISS_LSTATUS_INTERIM_RECOVERY: 4362 case CISS_LSTATUS_READY_RECOVERY: 4363 case CISS_LSTATUS_RECOVERING: 4364 case CISS_LSTATUS_EXPANDING: 4365 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4366 return(CISS_LD_ONLINE); 4367 4368 case CISS_LSTATUS_FAILED: 4369 case CISS_LSTATUS_WRONG_PDRIVE: 4370 case CISS_LSTATUS_MISSING_PDRIVE: 4371 case CISS_LSTATUS_BECOMING_READY: 4372 default: 4373 return(CISS_LD_OFFLINE); 4374 } 4375 } 4376 4377 4378 /************************************************************************ 4379 * Return a name for a logical drive's organisation. 4380 */ 4381 static const char * 4382 ciss_name_ldrive_org(int org) 4383 { 4384 switch(org) { 4385 case CISS_LDRIVE_RAID0: 4386 return("RAID 0"); 4387 case CISS_LDRIVE_RAID1: 4388 return("RAID 1(1+0)"); 4389 case CISS_LDRIVE_RAID4: 4390 return("RAID 4"); 4391 case CISS_LDRIVE_RAID5: 4392 return("RAID 5"); 4393 case CISS_LDRIVE_RAID51: 4394 return("RAID 5+1"); 4395 case CISS_LDRIVE_RAIDADG: 4396 return("RAID ADG"); 4397 } 4398 return("unknown"); 4399 } 4400 4401 /************************************************************************ 4402 * Return a name for a command status value. 4403 */ 4404 static const char * 4405 ciss_name_command_status(int status) 4406 { 4407 switch(status) { 4408 case CISS_CMD_STATUS_SUCCESS: 4409 return("success"); 4410 case CISS_CMD_STATUS_TARGET_STATUS: 4411 return("target status"); 4412 case CISS_CMD_STATUS_DATA_UNDERRUN: 4413 return("data underrun"); 4414 case CISS_CMD_STATUS_DATA_OVERRUN: 4415 return("data overrun"); 4416 case CISS_CMD_STATUS_INVALID_COMMAND: 4417 return("invalid command"); 4418 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4419 return("protocol error"); 4420 case CISS_CMD_STATUS_HARDWARE_ERROR: 4421 return("hardware error"); 4422 case CISS_CMD_STATUS_CONNECTION_LOST: 4423 return("connection lost"); 4424 case CISS_CMD_STATUS_ABORTED: 4425 return("aborted"); 4426 case CISS_CMD_STATUS_ABORT_FAILED: 4427 return("abort failed"); 4428 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4429 return("unsolicited abort"); 4430 case CISS_CMD_STATUS_TIMEOUT: 4431 return("timeout"); 4432 case CISS_CMD_STATUS_UNABORTABLE: 4433 return("unabortable"); 4434 } 4435 return("unknown status"); 4436 } 4437 4438 /************************************************************************ 4439 * Handle an open on the control device. 4440 */ 4441 static int 4442 ciss_open(struct dev_open_args *ap) 4443 { 4444 cdev_t dev = ap->a_head.a_dev; 4445 struct ciss_softc *sc; 4446 4447 debug_called(1); 4448 4449 sc = (struct ciss_softc *)dev->si_drv1; 4450 4451 /* we might want to veto if someone already has us open */ 4452 4453 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4454 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4455 lockmgr(&sc->ciss_lock, LK_RELEASE); 4456 return(0); 4457 } 4458 4459 /************************************************************************ 4460 * Handle the last close on the control device. 4461 */ 4462 static int 4463 ciss_close(struct dev_close_args *ap) 4464 { 4465 cdev_t dev = ap->a_head.a_dev; 4466 struct ciss_softc *sc; 4467 4468 debug_called(1); 4469 4470 sc = (struct ciss_softc *)dev->si_drv1; 4471 4472 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4473 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4474 lockmgr(&sc->ciss_lock, LK_RELEASE); 4475 return (0); 4476 } 4477 4478 /******************************************************************************** 4479 * Handle adapter-specific control operations. 4480 * 4481 * Note that the API here is compatible with the Linux driver, in order to 4482 * simplify the porting of Compaq's userland tools. 4483 */ 4484 static int 4485 ciss_ioctl(struct dev_ioctl_args *ap) 4486 { 4487 caddr_t addr = ap->a_data; 4488 cdev_t dev = ap->a_head.a_dev; 4489 u_long cmd = ap->a_cmd; 4490 struct ciss_softc *sc; 4491 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4492 #ifdef __x86_64__ 4493 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4494 IOCTL_Command_struct ioc_swab; 4495 #endif 4496 int error; 4497 4498 debug_called(1); 4499 4500 sc = (struct ciss_softc *)dev->si_drv1; 4501 error = 0; 4502 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4503 4504 switch(cmd) { 4505 case CCISS_GETQSTATS: 4506 { 4507 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4508 4509 switch (cr->cs_item) { 4510 case CISSQ_FREE: 4511 case CISSQ_NOTIFY: 4512 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4513 sizeof(struct ciss_qstat)); 4514 break; 4515 default: 4516 error = ENOIOCTL; 4517 break; 4518 } 4519 4520 break; 4521 } 4522 4523 case CCISS_GETPCIINFO: 4524 { 4525 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4526 4527 pis->bus = pci_get_bus(sc->ciss_dev); 4528 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4529 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4530 pci_get_subdevice(sc->ciss_dev); 4531 4532 break; 4533 } 4534 4535 case CCISS_GETINTINFO: 4536 { 4537 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4538 4539 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4540 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4541 4542 break; 4543 } 4544 4545 case CCISS_SETINTINFO: 4546 { 4547 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4548 4549 if ((cis->delay == 0) && (cis->count == 0)) { 4550 error = EINVAL; 4551 break; 4552 } 4553 4554 /* 4555 * XXX apparently this is only safe if the controller is idle, 4556 * we should suspend it before doing this. 4557 */ 4558 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4559 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4560 4561 if (ciss_update_config(sc)) 4562 error = EIO; 4563 4564 /* XXX resume the controller here */ 4565 break; 4566 } 4567 4568 case CCISS_GETNODENAME: 4569 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4570 sizeof(NodeName_type)); 4571 break; 4572 4573 case CCISS_SETNODENAME: 4574 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4575 sizeof(NodeName_type)); 4576 if (ciss_update_config(sc)) 4577 error = EIO; 4578 break; 4579 4580 case CCISS_GETHEARTBEAT: 4581 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4582 break; 4583 4584 case CCISS_GETBUSTYPES: 4585 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4586 break; 4587 4588 case CCISS_GETFIRMVER: 4589 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4590 sizeof(FirmwareVer_type)); 4591 break; 4592 4593 case CCISS_GETDRIVERVER: 4594 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4595 break; 4596 4597 case CCISS_REVALIDVOLS: 4598 /* 4599 * This is a bit ugly; to do it "right" we really need 4600 * to find any disks that have changed, kick CAM off them, 4601 * then rescan only these disks. It'd be nice if they 4602 * a) told us which disk(s) they were going to play with, 4603 * and b) which ones had arrived. 8( 4604 */ 4605 break; 4606 4607 #ifdef __x86_64__ 4608 case CCISS_PASSTHRU32: 4609 ioc_swab.LUN_info = ioc32->LUN_info; 4610 ioc_swab.Request = ioc32->Request; 4611 ioc_swab.error_info = ioc32->error_info; 4612 ioc_swab.buf_size = ioc32->buf_size; 4613 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4614 ioc = &ioc_swab; 4615 /* FALLTHROUGH */ 4616 #endif 4617 4618 case CCISS_PASSTHRU: 4619 error = ciss_user_command(sc, ioc); 4620 break; 4621 4622 default: 4623 debug(0, "unknown ioctl 0x%lx", cmd); 4624 4625 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4626 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4627 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4628 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4629 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4630 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4631 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4632 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4633 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4634 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4635 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4636 4637 error = ENOIOCTL; 4638 break; 4639 } 4640 4641 lockmgr(&sc->ciss_lock, LK_RELEASE); 4642 return(error); 4643 } 4644