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 { 0, 0 } 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, NULL, NULL); 228 MODULE_VERSION(ciss, 1); 229 MODULE_DEPEND(ciss, cam, 1, 1, 1); 230 MODULE_DEPEND(ciss, pci, 1, 1, 1); 231 232 /* 233 * Control device interface. 234 */ 235 static d_open_t ciss_open; 236 static d_close_t ciss_close; 237 static d_ioctl_t ciss_ioctl; 238 239 static struct dev_ops ciss_ops = { 240 { "ciss", 0, 0 }, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 286 static struct 287 { 288 u_int16_t subvendor; 289 u_int16_t subdevice; 290 int flags; 291 char *desc; 292 } ciss_vendor_data[] = { 293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 339 { 0, 0, 0, NULL } 340 }; 341 342 /************************************************************************ 343 * Find a match for the device in our list of known adapters. 344 */ 345 static int 346 ciss_lookup(device_t dev) 347 { 348 int i; 349 350 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 351 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 352 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 353 return(i); 354 } 355 return(-1); 356 } 357 358 /************************************************************************ 359 * Match a known CISS adapter. 360 */ 361 static int 362 ciss_probe(device_t dev) 363 { 364 int i; 365 366 i = ciss_lookup(dev); 367 if (i != -1) { 368 device_set_desc(dev, ciss_vendor_data[i].desc); 369 return(BUS_PROBE_DEFAULT); 370 } 371 return(ENOENT); 372 } 373 374 /************************************************************************ 375 * Attach the driver to this adapter. 376 */ 377 static int 378 ciss_attach(device_t dev) 379 { 380 struct ciss_softc *sc; 381 int error; 382 383 debug_called(1); 384 385 #ifdef CISS_DEBUG 386 /* print structure/union sizes */ 387 debug_struct(ciss_command); 388 debug_struct(ciss_header); 389 debug_union(ciss_device_address); 390 debug_struct(ciss_cdb); 391 debug_struct(ciss_report_cdb); 392 debug_struct(ciss_notify_cdb); 393 debug_struct(ciss_notify); 394 debug_struct(ciss_message_cdb); 395 debug_struct(ciss_error_info_pointer); 396 debug_struct(ciss_error_info); 397 debug_struct(ciss_sg_entry); 398 debug_struct(ciss_config_table); 399 debug_struct(ciss_bmic_cdb); 400 debug_struct(ciss_bmic_id_ldrive); 401 debug_struct(ciss_bmic_id_lstatus); 402 debug_struct(ciss_bmic_id_table); 403 debug_struct(ciss_bmic_id_pdrive); 404 debug_struct(ciss_bmic_blink_pdrive); 405 debug_struct(ciss_bmic_flush_cache); 406 debug_const(CISS_MAX_REQUESTS); 407 debug_const(CISS_MAX_LOGICAL); 408 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 409 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 410 debug_const(CISS_COMMAND_ALLOC_SIZE); 411 debug_const(CISS_COMMAND_SG_LENGTH); 412 413 debug_type(cciss_pci_info_struct); 414 debug_type(cciss_coalint_struct); 415 debug_type(cciss_coalint_struct); 416 debug_type(NodeName_type); 417 debug_type(NodeName_type); 418 debug_type(Heartbeat_type); 419 debug_type(BusTypes_type); 420 debug_type(FirmwareVer_type); 421 debug_type(DriverVer_type); 422 debug_type(IOCTL_Command_struct); 423 #endif 424 425 sc = device_get_softc(dev); 426 sc->ciss_dev = dev; 427 lockinit(&sc->ciss_lock, "cissmtx", 0, LK_CANRECURSE); 428 callout_init(&sc->ciss_periodic); 429 430 /* 431 * Do PCI-specific init. 432 */ 433 if ((error = ciss_init_pci(sc)) != 0) 434 goto out; 435 436 /* 437 * Initialise driver queues. 438 */ 439 ciss_initq_free(sc); 440 ciss_initq_notify(sc); 441 442 /* 443 * Initalize device sysctls. 444 */ 445 ciss_init_sysctl(sc); 446 447 /* 448 * Initialise command/request pool. 449 */ 450 if ((error = ciss_init_requests(sc)) != 0) 451 goto out; 452 453 /* 454 * Get adapter information. 455 */ 456 if ((error = ciss_identify_adapter(sc)) != 0) 457 goto out; 458 459 /* 460 * Find all the physical devices. 461 */ 462 if ((error = ciss_init_physical(sc)) != 0) 463 goto out; 464 465 /* 466 * Build our private table of logical devices. 467 */ 468 if ((error = ciss_init_logical(sc)) != 0) 469 goto out; 470 471 /* 472 * Enable interrupts so that the CAM scan can complete. 473 */ 474 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 475 476 /* 477 * Initialise the CAM interface. 478 */ 479 if ((error = ciss_cam_init(sc)) != 0) 480 goto out; 481 482 /* 483 * Start the heartbeat routine and event chain. 484 */ 485 ciss_periodic(sc); 486 487 /* 488 * Create the control device. 489 */ 490 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 491 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 492 "ciss%d", device_get_unit(sc->ciss_dev)); 493 sc->ciss_dev_t->si_drv1 = sc; 494 495 /* 496 * The adapter is running; synchronous commands can now sleep 497 * waiting for an interrupt to signal completion. 498 */ 499 sc->ciss_flags |= CISS_FLAG_RUNNING; 500 501 ciss_spawn_notify_thread(sc); 502 503 error = 0; 504 out: 505 if (error != 0) { 506 /* ciss_free() expects the mutex to be held */ 507 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 508 ciss_free(sc); 509 } 510 return(error); 511 } 512 513 /************************************************************************ 514 * Detach the driver from this adapter. 515 */ 516 static int 517 ciss_detach(device_t dev) 518 { 519 struct ciss_softc *sc = device_get_softc(dev); 520 521 debug_called(1); 522 523 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 524 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 525 lockmgr(&sc->ciss_lock, LK_RELEASE); 526 return (EBUSY); 527 } 528 529 /* flush adapter cache */ 530 ciss_flush_adapter(sc); 531 532 /* release all resources. The mutex is released and freed here too. */ 533 ciss_free(sc); 534 535 return(0); 536 } 537 538 /************************************************************************ 539 * Prepare adapter for system shutdown. 540 */ 541 static int 542 ciss_shutdown(device_t dev) 543 { 544 struct ciss_softc *sc = device_get_softc(dev); 545 546 debug_called(1); 547 548 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 549 /* flush adapter cache */ 550 ciss_flush_adapter(sc); 551 552 if (sc->ciss_soft_reset) 553 ciss_soft_reset(sc); 554 lockmgr(&sc->ciss_lock, LK_RELEASE); 555 556 return(0); 557 } 558 559 static void 560 ciss_init_sysctl(struct ciss_softc *sc) 561 { 562 sysctl_ctx_init(&sc->ciss_sysctl_ctx); 563 sc->ciss_sysctl_tree = SYSCTL_ADD_NODE(&sc->ciss_sysctl_ctx, 564 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 565 device_get_nameunit(sc->ciss_dev), CTLFLAG_RD, 0, ""); 566 SYSCTL_ADD_INT(&sc->ciss_sysctl_ctx, 567 SYSCTL_CHILDREN(sc->ciss_sysctl_tree), 568 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 569 } 570 571 /************************************************************************ 572 * Perform PCI-specific attachment actions. 573 */ 574 static int 575 ciss_init_pci(struct ciss_softc *sc) 576 { 577 uintptr_t cbase, csize, cofs; 578 uint32_t method, supported_methods; 579 int error, sqmask, i; 580 void *intr; 581 int use_msi; 582 u_int irq_flags; 583 584 debug_called(1); 585 586 /* 587 * Work out adapter type. 588 */ 589 i = ciss_lookup(sc->ciss_dev); 590 if (i < 0) { 591 ciss_printf(sc, "unknown adapter type\n"); 592 return (ENXIO); 593 } 594 595 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 596 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 597 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 598 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 599 } else { 600 /* 601 * XXX Big hammer, masks/unmasks all possible interrupts. This should 602 * work on all hardware variants. Need to add code to handle the 603 * "controller crashed" interupt bit that this unmasks. 604 */ 605 sqmask = ~0; 606 } 607 608 /* 609 * Allocate register window first (we need this to find the config 610 * struct). 611 */ 612 error = ENXIO; 613 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 614 if ((sc->ciss_regs_resource = 615 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 616 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 617 ciss_printf(sc, "can't allocate register window\n"); 618 return(ENXIO); 619 } 620 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 621 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 622 623 /* 624 * Find the BAR holding the config structure. If it's not the one 625 * we already mapped for registers, map it too. 626 */ 627 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 628 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 629 if ((sc->ciss_cfg_resource = 630 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 631 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 632 ciss_printf(sc, "can't allocate config window\n"); 633 return(ENXIO); 634 } 635 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 636 csize = rman_get_end(sc->ciss_cfg_resource) - 637 rman_get_start(sc->ciss_cfg_resource) + 1; 638 } else { 639 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 640 csize = rman_get_end(sc->ciss_regs_resource) - 641 rman_get_start(sc->ciss_regs_resource) + 1; 642 } 643 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 644 645 /* 646 * Use the base/size/offset values we just calculated to 647 * sanity-check the config structure. If it's OK, point to it. 648 */ 649 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 650 ciss_printf(sc, "config table outside window\n"); 651 return(ENXIO); 652 } 653 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 654 debug(1, "config struct at %p", sc->ciss_cfg); 655 656 /* 657 * Calculate the number of request structures/commands we are 658 * going to provide for this adapter. 659 */ 660 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 661 662 /* 663 * Validate the config structure. If we supported other transport 664 * methods, we could select amongst them at this point in time. 665 */ 666 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 667 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 668 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 669 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 670 return(ENXIO); 671 } 672 673 /* 674 * Select the mode of operation, prefer Performant. 675 */ 676 if (!(sc->ciss_cfg->supported_methods & 677 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 678 ciss_printf(sc, "No supported transport layers: 0x%x\n", 679 sc->ciss_cfg->supported_methods); 680 } 681 682 switch (ciss_force_transport) { 683 case 1: 684 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 685 break; 686 case 2: 687 supported_methods = CISS_TRANSPORT_METHOD_PERF; 688 break; 689 default: 690 supported_methods = sc->ciss_cfg->supported_methods; 691 break; 692 } 693 694 setup: 695 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 696 method = CISS_TRANSPORT_METHOD_PERF; 697 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 698 sc->ciss_cfg->transport_offset); 699 if (ciss_init_perf(sc)) { 700 supported_methods &= ~method; 701 goto setup; 702 } 703 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 704 method = CISS_TRANSPORT_METHOD_SIMPLE; 705 } else { 706 ciss_printf(sc, "No supported transport methods: 0x%x\n", 707 sc->ciss_cfg->supported_methods); 708 return(ENXIO); 709 } 710 711 /* 712 * Tell it we're using the low 4GB of RAM. Set the default interrupt 713 * coalescing options. 714 */ 715 sc->ciss_cfg->requested_method = method; 716 sc->ciss_cfg->command_physlimit = 0; 717 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 718 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 719 720 #ifdef __i386__ 721 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 722 #endif 723 724 if (ciss_update_config(sc)) { 725 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 726 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 727 return(ENXIO); 728 } 729 if ((sc->ciss_cfg->active_method & method) == 0) { 730 supported_methods &= ~method; 731 if (supported_methods == 0) { 732 ciss_printf(sc, "adapter refuses to go into available transports " 733 "mode (0x%x, 0x%x)\n", supported_methods, 734 sc->ciss_cfg->active_method); 735 return(ENXIO); 736 } else 737 goto setup; 738 } 739 740 /* 741 * Wait for the adapter to come ready. 742 */ 743 if ((error = ciss_wait_adapter(sc)) != 0) 744 return(error); 745 746 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 747 * interrupts have a rid of 0, this will be overridden if MSIX is used. 748 */ 749 sc->ciss_irq_rid[0] = 0; 750 if (method == CISS_TRANSPORT_METHOD_PERF) { 751 ciss_printf(sc, "PERFORMANT Transport\n"); 752 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 753 intr = ciss_perf_msi_intr; 754 } else { 755 intr = ciss_perf_intr; 756 } 757 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 758 * Unfortunately, there is no good way to know if this is a SAS 759 * controller. Hopefully enabling this bit universally will work OK. 760 * It seems to work fine for SA6i controllers. 761 */ 762 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 763 764 } else { 765 ciss_printf(sc, "SIMPLE Transport\n"); 766 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 767 if (ciss_force_interrupt == 2) 768 /* If this fails, we automatically revert to INTx */ 769 ciss_setup_msix(sc); 770 sc->ciss_perf = NULL; 771 intr = ciss_intr; 772 sc->ciss_interrupt_mask = sqmask; 773 } 774 /* 775 * Turn off interrupts before we go routing anything. 776 */ 777 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 778 779 /* 780 * Allocate and set up our interrupt. 781 */ 782 #ifdef __DragonFly__ /* DragonFly specific MSI setup */ 783 use_msi = (intr == ciss_perf_msi_intr); 784 #endif 785 sc->ciss_irq_rid[0] = 0; 786 sc->ciss_irq_type = pci_alloc_1intr(sc->ciss_dev, use_msi, 787 &sc->ciss_irq_rid[0], &irq_flags); 788 if ((sc->ciss_irq_resource = 789 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 790 irq_flags)) == NULL) { 791 ciss_printf(sc, "can't allocate interrupt\n"); 792 return(ENXIO); 793 } 794 795 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 796 INTR_MPSAFE, intr, sc, 797 &sc->ciss_intr, NULL)) { 798 ciss_printf(sc, "can't set up interrupt\n"); 799 return(ENXIO); 800 } 801 802 /* 803 * Allocate the parent bus DMA tag appropriate for our PCI 804 * interface. 805 * 806 * Note that "simple" adapters can only address within a 32-bit 807 * span. 808 */ 809 if (bus_dma_tag_create(NULL, /* PCI parent */ 810 1, 0, /* alignment, boundary */ 811 BUS_SPACE_MAXADDR, /* lowaddr */ 812 BUS_SPACE_MAXADDR, /* highaddr */ 813 NULL, NULL, /* filter, filterarg */ 814 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 815 CISS_MAX_SG_ELEMENTS, /* nsegments */ 816 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 817 0, /* flags */ 818 &sc->ciss_parent_dmat)) { 819 ciss_printf(sc, "can't allocate parent DMA tag\n"); 820 return(ENOMEM); 821 } 822 823 /* 824 * Create DMA tag for mapping buffers into adapter-addressable 825 * space. 826 */ 827 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 828 1, 0, /* alignment, boundary */ 829 BUS_SPACE_MAXADDR, /* lowaddr */ 830 BUS_SPACE_MAXADDR, /* highaddr */ 831 NULL, NULL, /* filter, filterarg */ 832 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 833 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 834 BUS_DMA_ALLOCNOW, /* flags */ 835 &sc->ciss_buffer_dmat)) { 836 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 837 return(ENOMEM); 838 } 839 return(0); 840 } 841 842 /************************************************************************ 843 * Setup MSI/MSIX operation (Performant only) 844 * Four interrupts are available, but we only use 1 right now. If MSI-X 845 * isn't avaialble, try using MSI instead. 846 */ 847 static int 848 ciss_setup_msix(struct ciss_softc *sc) 849 { 850 int val, i; 851 852 /* Weed out devices that don't actually support MSI */ 853 i = ciss_lookup(sc->ciss_dev); 854 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 855 return (EINVAL); 856 857 #if 0 /* XXX swildner */ 858 /* 859 * Only need to use the minimum number of MSI vectors, as the driver 860 * doesn't support directed MSIX interrupts. 861 */ 862 val = pci_msix_count(sc->ciss_dev); 863 if (val < CISS_MSI_COUNT) { 864 val = pci_msi_count(sc->ciss_dev); 865 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 866 if (val < CISS_MSI_COUNT) 867 return (EINVAL); 868 } 869 val = MIN(val, CISS_MSI_COUNT); 870 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 871 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 872 return (EINVAL); 873 } 874 #endif 875 876 val = 1; 877 sc->ciss_msi = val; 878 if (bootverbose) 879 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 880 (val != 1) ? "s" : ""); 881 882 for (i = 0; i < val; i++) 883 sc->ciss_irq_rid[i] = i + 1; 884 885 return (0); 886 887 } 888 889 /************************************************************************ 890 * Setup the Performant structures. 891 */ 892 static int 893 ciss_init_perf(struct ciss_softc *sc) 894 { 895 struct ciss_perf_config *pc = sc->ciss_perf; 896 int reply_size; 897 898 /* 899 * Create the DMA tag for the reply queue. 900 */ 901 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 902 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 903 1, 0, /* alignment, boundary */ 904 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 905 BUS_SPACE_MAXADDR, /* highaddr */ 906 NULL, NULL, /* filter, filterarg */ 907 reply_size, 1, /* maxsize, nsegments */ 908 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 909 0, /* flags */ 910 &sc->ciss_reply_dmat)) { 911 ciss_printf(sc, "can't allocate reply DMA tag\n"); 912 return(ENOMEM); 913 } 914 /* 915 * Allocate memory and make it available for DMA. 916 */ 917 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 918 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 919 ciss_printf(sc, "can't allocate reply memory\n"); 920 return(ENOMEM); 921 } 922 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 923 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 924 bzero(sc->ciss_reply, reply_size); 925 926 sc->ciss_cycle = 0x1; 927 sc->ciss_rqidx = 0; 928 929 /* 930 * Preload the fetch table with common command sizes. This allows the 931 * hardware to not waste bus cycles for typical i/o commands, but also not 932 * tax the driver to be too exact in choosing sizes. The table is optimized 933 * for page-aligned i/o's, but since most i/o comes from the various pagers, 934 * it's a reasonable assumption to make. 935 */ 936 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 937 pc->fetch_count[CISS_SG_FETCH_1] = 938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 939 pc->fetch_count[CISS_SG_FETCH_2] = 940 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 941 pc->fetch_count[CISS_SG_FETCH_4] = 942 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 943 pc->fetch_count[CISS_SG_FETCH_8] = 944 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 945 pc->fetch_count[CISS_SG_FETCH_16] = 946 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 947 pc->fetch_count[CISS_SG_FETCH_32] = 948 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 949 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 950 951 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 952 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 953 pc->rq_bank_hi = 0; 954 pc->rq_bank_lo = 0; 955 pc->rq[0].rq_addr_hi = 0x0; 956 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 957 958 return(0); 959 } 960 961 /************************************************************************ 962 * Wait for the adapter to come ready. 963 */ 964 static int 965 ciss_wait_adapter(struct ciss_softc *sc) 966 { 967 int i; 968 969 debug_called(1); 970 971 /* 972 * Wait for the adapter to come ready. 973 */ 974 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 975 ciss_printf(sc, "waiting for adapter to come ready...\n"); 976 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 977 DELAY(1000000); /* one second */ 978 if (i > 30) { 979 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 980 return(EIO); 981 } 982 } 983 } 984 return(0); 985 } 986 987 /************************************************************************ 988 * Flush the adapter cache. 989 */ 990 static int 991 ciss_flush_adapter(struct ciss_softc *sc) 992 { 993 struct ciss_request *cr; 994 struct ciss_bmic_flush_cache *cbfc; 995 int error, command_status; 996 997 debug_called(1); 998 999 cr = NULL; 1000 cbfc = NULL; 1001 1002 /* 1003 * Build a BMIC request to flush the cache. We don't disable 1004 * it, as we may be going to do more I/O (eg. we are emulating 1005 * the Synchronise Cache command). 1006 */ 1007 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1008 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1009 (void **)&cbfc, sizeof(*cbfc))) != 0) 1010 goto out; 1011 1012 /* 1013 * Submit the request and wait for it to complete. 1014 */ 1015 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1016 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1017 goto out; 1018 } 1019 1020 /* 1021 * Check response. 1022 */ 1023 ciss_report_request(cr, &command_status, NULL); 1024 switch(command_status) { 1025 case CISS_CMD_STATUS_SUCCESS: 1026 break; 1027 default: 1028 ciss_printf(sc, "error flushing cache (%s)\n", 1029 ciss_name_command_status(command_status)); 1030 error = EIO; 1031 goto out; 1032 } 1033 1034 out: 1035 if (cbfc != NULL) 1036 kfree(cbfc, CISS_MALLOC_CLASS); 1037 if (cr != NULL) 1038 ciss_release_request(cr); 1039 return(error); 1040 } 1041 1042 static void 1043 ciss_soft_reset(struct ciss_softc *sc) 1044 { 1045 struct ciss_request *cr = NULL; 1046 struct ciss_command *cc; 1047 int i, error = 0; 1048 1049 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1050 /* only reset proxy controllers */ 1051 if (sc->ciss_controllers[i].physical.bus == 0) 1052 continue; 1053 1054 if ((error = ciss_get_request(sc, &cr)) != 0) 1055 break; 1056 1057 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1058 NULL, 0)) != 0) 1059 break; 1060 1061 cc = cr->cr_cc; 1062 cc->header.address = sc->ciss_controllers[i]; 1063 1064 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1065 break; 1066 1067 ciss_release_request(cr); 1068 } 1069 1070 if (error) 1071 ciss_printf(sc, "error resetting controller (%d)\n", error); 1072 1073 if (cr != NULL) 1074 ciss_release_request(cr); 1075 } 1076 1077 /************************************************************************ 1078 * Allocate memory for the adapter command structures, initialise 1079 * the request structures. 1080 * 1081 * Note that the entire set of commands are allocated in a single 1082 * contiguous slab. 1083 */ 1084 static int 1085 ciss_init_requests(struct ciss_softc *sc) 1086 { 1087 struct ciss_request *cr; 1088 int i; 1089 1090 debug_called(1); 1091 1092 if (bootverbose) 1093 ciss_printf(sc, "using %d of %d available commands\n", 1094 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1095 1096 /* 1097 * Create the DMA tag for commands. 1098 */ 1099 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1100 32, 0, /* alignment, boundary */ 1101 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1102 BUS_SPACE_MAXADDR, /* highaddr */ 1103 NULL, NULL, /* filter, filterarg */ 1104 CISS_COMMAND_ALLOC_SIZE * 1105 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1106 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1107 0, /* flags */ 1108 &sc->ciss_command_dmat)) { 1109 ciss_printf(sc, "can't allocate command DMA tag\n"); 1110 return(ENOMEM); 1111 } 1112 /* 1113 * Allocate memory and make it available for DMA. 1114 */ 1115 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1116 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1117 ciss_printf(sc, "can't allocate command memory\n"); 1118 return(ENOMEM); 1119 } 1120 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1121 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1122 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1123 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1124 1125 /* 1126 * Set up the request and command structures, push requests onto 1127 * the free queue. 1128 */ 1129 for (i = 1; i < sc->ciss_max_requests; i++) { 1130 cr = &sc->ciss_request[i]; 1131 cr->cr_sc = sc; 1132 cr->cr_tag = i; 1133 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1134 CISS_COMMAND_ALLOC_SIZE * i); 1135 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1136 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1137 ciss_enqueue_free(cr); 1138 } 1139 return(0); 1140 } 1141 1142 static void 1143 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1144 { 1145 uint32_t *addr; 1146 1147 addr = arg; 1148 *addr = segs[0].ds_addr; 1149 } 1150 1151 /************************************************************************ 1152 * Identify the adapter, print some information about it. 1153 */ 1154 static int 1155 ciss_identify_adapter(struct ciss_softc *sc) 1156 { 1157 struct ciss_request *cr; 1158 int error, command_status; 1159 1160 debug_called(1); 1161 1162 cr = NULL; 1163 1164 /* 1165 * Get a request, allocate storage for the adapter data. 1166 */ 1167 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1168 (void **)&sc->ciss_id, 1169 sizeof(*sc->ciss_id))) != 0) 1170 goto out; 1171 1172 /* 1173 * Submit the request and wait for it to complete. 1174 */ 1175 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1176 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1177 goto out; 1178 } 1179 1180 /* 1181 * Check response. 1182 */ 1183 ciss_report_request(cr, &command_status, NULL); 1184 switch(command_status) { 1185 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1186 break; 1187 case CISS_CMD_STATUS_DATA_UNDERRUN: 1188 case CISS_CMD_STATUS_DATA_OVERRUN: 1189 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1190 default: 1191 ciss_printf(sc, "error reading adapter information (%s)\n", 1192 ciss_name_command_status(command_status)); 1193 error = EIO; 1194 goto out; 1195 } 1196 1197 /* sanity-check reply */ 1198 if (!sc->ciss_id->big_map_supported) { 1199 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1200 error = ENXIO; 1201 goto out; 1202 } 1203 1204 #if 0 1205 /* XXX later revisions may not need this */ 1206 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1207 #endif 1208 1209 /* XXX only really required for old 5300 adapters? */ 1210 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1211 1212 /* print information */ 1213 if (bootverbose) { 1214 #if 0 /* XXX proxy volumes??? */ 1215 ciss_printf(sc, " %d logical drive%s configured\n", 1216 sc->ciss_id->configured_logical_drives, 1217 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1218 #endif 1219 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1220 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1221 1222 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1223 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1224 ciss_printf(sc, " supported I/O methods 0x%b\n", 1225 sc->ciss_cfg->supported_methods, 1226 "\20\1READY\2simple\3performant\4MEMQ\n"); 1227 ciss_printf(sc, " active I/O method 0x%b\n", 1228 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1229 ciss_printf(sc, " 4G page base 0x%08x\n", 1230 sc->ciss_cfg->command_physlimit); 1231 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1232 sc->ciss_cfg->interrupt_coalesce_delay); 1233 ciss_printf(sc, " interrupt coalesce count %d\n", 1234 sc->ciss_cfg->interrupt_coalesce_count); 1235 ciss_printf(sc, " max outstanding commands %d\n", 1236 sc->ciss_cfg->max_outstanding_commands); 1237 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1238 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1239 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1240 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1241 } 1242 1243 out: 1244 if (error) { 1245 if (sc->ciss_id != NULL) { 1246 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1247 sc->ciss_id = NULL; 1248 } 1249 } 1250 if (cr != NULL) 1251 ciss_release_request(cr); 1252 return(error); 1253 } 1254 1255 /************************************************************************ 1256 * Helper routine for generating a list of logical and physical luns. 1257 */ 1258 static struct ciss_lun_report * 1259 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1260 { 1261 struct ciss_request *cr; 1262 struct ciss_command *cc; 1263 struct ciss_report_cdb *crc; 1264 struct ciss_lun_report *cll; 1265 int command_status; 1266 int report_size; 1267 int error = 0; 1268 1269 debug_called(1); 1270 1271 cr = NULL; 1272 cll = NULL; 1273 1274 /* 1275 * Get a request, allocate storage for the address list. 1276 */ 1277 if ((error = ciss_get_request(sc, &cr)) != 0) 1278 goto out; 1279 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1280 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1281 1282 /* 1283 * Build the Report Logical/Physical LUNs command. 1284 */ 1285 cc = cr->cr_cc; 1286 cr->cr_data = cll; 1287 cr->cr_length = report_size; 1288 cr->cr_flags = CISS_REQ_DATAIN; 1289 1290 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1291 cc->header.address.physical.bus = 0; 1292 cc->header.address.physical.target = 0; 1293 cc->cdb.cdb_length = sizeof(*crc); 1294 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1295 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1296 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1297 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1298 1299 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1300 bzero(crc, sizeof(*crc)); 1301 crc->opcode = opcode; 1302 crc->length = htonl(report_size); /* big-endian field */ 1303 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1304 1305 /* 1306 * Submit the request and wait for it to complete. (timeout 1307 * here should be much greater than above) 1308 */ 1309 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1310 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1311 goto out; 1312 } 1313 1314 /* 1315 * Check response. Note that data over/underrun is OK. 1316 */ 1317 ciss_report_request(cr, &command_status, NULL); 1318 switch(command_status) { 1319 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1320 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1321 break; 1322 case CISS_CMD_STATUS_DATA_OVERRUN: 1323 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1324 CISS_MAX_LOGICAL); 1325 break; 1326 default: 1327 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1328 ciss_name_command_status(command_status)); 1329 error = EIO; 1330 goto out; 1331 } 1332 ciss_release_request(cr); 1333 cr = NULL; 1334 1335 out: 1336 if (cr != NULL) 1337 ciss_release_request(cr); 1338 if (error && cll != NULL) { 1339 kfree(cll, CISS_MALLOC_CLASS); 1340 cll = NULL; 1341 } 1342 return(cll); 1343 } 1344 1345 /************************************************************************ 1346 * Find logical drives on the adapter. 1347 */ 1348 static int 1349 ciss_init_logical(struct ciss_softc *sc) 1350 { 1351 struct ciss_lun_report *cll; 1352 int error = 0, i, j; 1353 int ndrives; 1354 1355 debug_called(1); 1356 1357 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1358 CISS_MAX_LOGICAL); 1359 if (cll == NULL) { 1360 error = ENXIO; 1361 goto out; 1362 } 1363 1364 /* sanity-check reply */ 1365 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1366 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1367 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1368 ndrives, CISS_MAX_LOGICAL); 1369 error = ENXIO; 1370 goto out; 1371 } 1372 1373 /* 1374 * Save logical drive information. 1375 */ 1376 if (bootverbose) { 1377 ciss_printf(sc, "%d logical drive%s\n", 1378 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1379 } 1380 1381 sc->ciss_logical = 1382 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1383 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1384 1385 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1386 sc->ciss_logical[i] = 1387 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1388 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1389 1390 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1391 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1392 } 1393 1394 1395 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1396 if (i < ndrives) { 1397 struct ciss_ldrive *ld; 1398 int bus, target; 1399 1400 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1401 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1402 ld = &sc->ciss_logical[bus][target]; 1403 1404 ld->cl_address = cll->lun[i]; 1405 ld->cl_controller = &sc->ciss_controllers[bus]; 1406 if (ciss_identify_logical(sc, ld) != 0) 1407 continue; 1408 /* 1409 * If the drive has had media exchanged, we should bring it online. 1410 */ 1411 if (ld->cl_lstatus->media_exchanged) 1412 ciss_accept_media(sc, ld); 1413 1414 } 1415 } 1416 1417 out: 1418 if (cll != NULL) 1419 kfree(cll, CISS_MALLOC_CLASS); 1420 return(error); 1421 } 1422 1423 static int 1424 ciss_init_physical(struct ciss_softc *sc) 1425 { 1426 struct ciss_lun_report *cll; 1427 int error = 0, i; 1428 int nphys; 1429 int bus, target; 1430 1431 debug_called(1); 1432 1433 bus = 0; 1434 target = 0; 1435 1436 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1437 CISS_MAX_PHYSICAL); 1438 if (cll == NULL) { 1439 error = ENXIO; 1440 goto out; 1441 } 1442 1443 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1444 1445 if (bootverbose) { 1446 ciss_printf(sc, "%d physical device%s\n", 1447 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1448 } 1449 1450 /* 1451 * Figure out the bus mapping. 1452 * Logical buses include both the local logical bus for local arrays and 1453 * proxy buses for remote arrays. Physical buses are numbered by the 1454 * controller and represent physical buses that hold physical devices. 1455 * We shift these bus numbers so that everything fits into a single flat 1456 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1457 * numbers, and the physical bus numbers are shifted to be above that. 1458 * This results in the various driver arrays being indexed as follows: 1459 * 1460 * ciss_controllers[] - indexed by logical bus 1461 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1462 * being shifted by 32. 1463 * ciss_logical[][] - indexed by logical bus 1464 * ciss_physical[][] - indexed by physical bus 1465 * 1466 * XXX This is getting more and more hackish. CISS really doesn't play 1467 * well with a standard SCSI model; devices are addressed via magic 1468 * cookies, not via b/t/l addresses. Since there is no way to store 1469 * the cookie in the CAM device object, we have to keep these lookup 1470 * tables handy so that the devices can be found quickly at the cost 1471 * of wasting memory and having a convoluted lookup scheme. This 1472 * driver should probably be converted to block interface. 1473 */ 1474 /* 1475 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1476 * controller. A proxy controller is another physical controller 1477 * behind the primary PCI controller. We need to know about this 1478 * so that BMIC commands can be properly targeted. There can be 1479 * proxy controllers attached to a single PCI controller, so 1480 * find the highest numbered one so the array can be properly 1481 * sized. 1482 */ 1483 sc->ciss_max_logical_bus = 1; 1484 for (i = 0; i < nphys; i++) { 1485 if (cll->lun[i].physical.extra_address == 0) { 1486 bus = cll->lun[i].physical.bus; 1487 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1488 } else { 1489 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1490 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1491 } 1492 } 1493 1494 sc->ciss_controllers = 1495 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1496 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1497 1498 /* setup a map of controller addresses */ 1499 for (i = 0; i < nphys; i++) { 1500 if (cll->lun[i].physical.extra_address == 0) { 1501 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1502 } 1503 } 1504 1505 sc->ciss_physical = 1506 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1507 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1508 1509 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1510 sc->ciss_physical[i] = 1511 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1512 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1513 } 1514 1515 ciss_filter_physical(sc, cll); 1516 1517 out: 1518 if (cll != NULL) 1519 kfree(cll, CISS_MALLOC_CLASS); 1520 1521 return(error); 1522 } 1523 1524 static int 1525 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1526 { 1527 u_int32_t ea; 1528 int i, nphys; 1529 int bus, target; 1530 1531 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1532 for (i = 0; i < nphys; i++) { 1533 if (cll->lun[i].physical.extra_address == 0) 1534 continue; 1535 1536 /* 1537 * Filter out devices that we don't want. Level 3 LUNs could 1538 * probably be supported, but the docs don't give enough of a 1539 * hint to know how. 1540 * 1541 * The mode field of the physical address is likely set to have 1542 * hard disks masked out. Honor it unless the user has overridden 1543 * us with the tunable. We also munge the inquiry data for these 1544 * disks so that they only show up as passthrough devices. Keeping 1545 * them visible in this fashion is useful for doing things like 1546 * flashing firmware. 1547 */ 1548 ea = cll->lun[i].physical.extra_address; 1549 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1550 (CISS_EXTRA_MODE2(ea) == 0x3)) 1551 continue; 1552 if ((ciss_expose_hidden_physical == 0) && 1553 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1554 continue; 1555 1556 /* 1557 * Note: CISS firmware numbers physical busses starting at '1', not 1558 * '0'. This numbering is internal to the firmware and is only 1559 * used as a hint here. 1560 */ 1561 bus = CISS_EXTRA_BUS2(ea) - 1; 1562 target = CISS_EXTRA_TARGET2(ea); 1563 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1564 sc->ciss_physical[bus][target].cp_online = 1; 1565 } 1566 1567 return (0); 1568 } 1569 1570 static int 1571 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1572 { 1573 struct ciss_request *cr; 1574 struct ciss_command *cc; 1575 struct scsi_inquiry *inq; 1576 int error; 1577 int command_status; 1578 1579 cr = NULL; 1580 1581 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1582 1583 if ((error = ciss_get_request(sc, &cr)) != 0) 1584 goto out; 1585 1586 cc = cr->cr_cc; 1587 cr->cr_data = &ld->cl_geometry; 1588 cr->cr_length = sizeof(ld->cl_geometry); 1589 cr->cr_flags = CISS_REQ_DATAIN; 1590 1591 cc->header.address = ld->cl_address; 1592 cc->cdb.cdb_length = 6; 1593 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1594 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1595 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1596 cc->cdb.timeout = 30; 1597 1598 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1599 inq->opcode = INQUIRY; 1600 inq->byte2 = SI_EVPD; 1601 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1602 inq->length = sizeof(ld->cl_geometry); 1603 1604 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1605 ciss_printf(sc, "error getting geometry (%d)\n", error); 1606 goto out; 1607 } 1608 1609 ciss_report_request(cr, &command_status, NULL); 1610 switch(command_status) { 1611 case CISS_CMD_STATUS_SUCCESS: 1612 case CISS_CMD_STATUS_DATA_UNDERRUN: 1613 break; 1614 case CISS_CMD_STATUS_DATA_OVERRUN: 1615 ciss_printf(sc, "WARNING: Data overrun\n"); 1616 break; 1617 default: 1618 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1619 ciss_name_command_status(command_status)); 1620 break; 1621 } 1622 1623 out: 1624 if (cr != NULL) 1625 ciss_release_request(cr); 1626 return(error); 1627 } 1628 /************************************************************************ 1629 * Identify a logical drive, initialise state related to it. 1630 */ 1631 static int 1632 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1633 { 1634 struct ciss_request *cr; 1635 struct ciss_command *cc; 1636 struct ciss_bmic_cdb *cbc; 1637 int error, command_status; 1638 1639 debug_called(1); 1640 1641 cr = NULL; 1642 1643 /* 1644 * Build a BMIC request to fetch the drive ID. 1645 */ 1646 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1647 (void **)&ld->cl_ldrive, 1648 sizeof(*ld->cl_ldrive))) != 0) 1649 goto out; 1650 cc = cr->cr_cc; 1651 cc->header.address = *ld->cl_controller; /* target controller */ 1652 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1653 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1654 1655 /* 1656 * Submit the request and wait for it to complete. 1657 */ 1658 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1659 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1660 goto out; 1661 } 1662 1663 /* 1664 * Check response. 1665 */ 1666 ciss_report_request(cr, &command_status, NULL); 1667 switch(command_status) { 1668 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1669 break; 1670 case CISS_CMD_STATUS_DATA_UNDERRUN: 1671 case CISS_CMD_STATUS_DATA_OVERRUN: 1672 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1673 default: 1674 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1675 ciss_name_command_status(command_status)); 1676 error = EIO; 1677 goto out; 1678 } 1679 ciss_release_request(cr); 1680 cr = NULL; 1681 1682 /* 1683 * Build a CISS BMIC command to get the logical drive status. 1684 */ 1685 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1686 goto out; 1687 1688 /* 1689 * Get the logical drive geometry. 1690 */ 1691 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1692 goto out; 1693 1694 /* 1695 * Print the drive's basic characteristics. 1696 */ 1697 if (bootverbose) { 1698 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1699 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1700 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1701 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1702 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1703 ld->cl_ldrive->block_size)); 1704 1705 ciss_print_ldrive(sc, ld); 1706 } 1707 out: 1708 if (error != 0) { 1709 /* make the drive not-exist */ 1710 ld->cl_status = CISS_LD_NONEXISTENT; 1711 if (ld->cl_ldrive != NULL) { 1712 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1713 ld->cl_ldrive = NULL; 1714 } 1715 if (ld->cl_lstatus != NULL) { 1716 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1717 ld->cl_lstatus = NULL; 1718 } 1719 } 1720 if (cr != NULL) 1721 ciss_release_request(cr); 1722 1723 return(error); 1724 } 1725 1726 /************************************************************************ 1727 * Get status for a logical drive. 1728 * 1729 * XXX should we also do this in response to Test Unit Ready? 1730 */ 1731 static int 1732 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1733 { 1734 struct ciss_request *cr; 1735 struct ciss_command *cc; 1736 struct ciss_bmic_cdb *cbc; 1737 int error, command_status; 1738 1739 /* 1740 * Build a CISS BMIC command to get the logical drive status. 1741 */ 1742 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1743 (void **)&ld->cl_lstatus, 1744 sizeof(*ld->cl_lstatus))) != 0) 1745 goto out; 1746 cc = cr->cr_cc; 1747 cc->header.address = *ld->cl_controller; /* target controller */ 1748 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1749 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1750 1751 /* 1752 * Submit the request and wait for it to complete. 1753 */ 1754 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1755 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1756 goto out; 1757 } 1758 1759 /* 1760 * Check response. 1761 */ 1762 ciss_report_request(cr, &command_status, NULL); 1763 switch(command_status) { 1764 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1765 break; 1766 case CISS_CMD_STATUS_DATA_UNDERRUN: 1767 case CISS_CMD_STATUS_DATA_OVERRUN: 1768 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1769 default: 1770 ciss_printf(sc, "error reading logical drive status (%s)\n", 1771 ciss_name_command_status(command_status)); 1772 error = EIO; 1773 goto out; 1774 } 1775 1776 /* 1777 * Set the drive's summary status based on the returned status. 1778 * 1779 * XXX testing shows that a failed JBOD drive comes back at next 1780 * boot in "queued for expansion" mode. WTF? 1781 */ 1782 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1783 1784 out: 1785 if (cr != NULL) 1786 ciss_release_request(cr); 1787 return(error); 1788 } 1789 1790 /************************************************************************ 1791 * Notify the adapter of a config update. 1792 */ 1793 static int 1794 ciss_update_config(struct ciss_softc *sc) 1795 { 1796 int i; 1797 1798 debug_called(1); 1799 1800 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1801 for (i = 0; i < 1000; i++) { 1802 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1803 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1804 return(0); 1805 } 1806 DELAY(1000); 1807 } 1808 return(1); 1809 } 1810 1811 /************************************************************************ 1812 * Accept new media into a logical drive. 1813 * 1814 * XXX The drive has previously been offline; it would be good if we 1815 * could make sure it's not open right now. 1816 */ 1817 static int 1818 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1819 { 1820 struct ciss_request *cr; 1821 struct ciss_command *cc; 1822 struct ciss_bmic_cdb *cbc; 1823 int command_status; 1824 int error = 0, ldrive; 1825 1826 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1827 1828 debug(0, "bringing logical drive %d back online"); 1829 1830 /* 1831 * Build a CISS BMIC command to bring the drive back online. 1832 */ 1833 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1834 NULL, 0)) != 0) 1835 goto out; 1836 cc = cr->cr_cc; 1837 cc->header.address = *ld->cl_controller; /* target controller */ 1838 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1839 cbc->log_drive = ldrive; 1840 1841 /* 1842 * Submit the request and wait for it to complete. 1843 */ 1844 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1845 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1846 goto out; 1847 } 1848 1849 /* 1850 * Check response. 1851 */ 1852 ciss_report_request(cr, &command_status, NULL); 1853 switch(command_status) { 1854 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1855 /* we should get a logical drive status changed event here */ 1856 break; 1857 default: 1858 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1859 ciss_name_command_status(command_status)); 1860 break; 1861 } 1862 1863 out: 1864 if (cr != NULL) 1865 ciss_release_request(cr); 1866 return(error); 1867 } 1868 1869 /************************************************************************ 1870 * Release adapter resources. 1871 */ 1872 static void 1873 ciss_free(struct ciss_softc *sc) 1874 { 1875 struct ciss_request *cr; 1876 int i, j; 1877 1878 debug_called(1); 1879 1880 /* we're going away */ 1881 sc->ciss_flags |= CISS_FLAG_ABORTING; 1882 1883 /* terminate the periodic heartbeat routine */ 1884 callout_stop(&sc->ciss_periodic); 1885 1886 /* cancel the Event Notify chain */ 1887 ciss_notify_abort(sc); 1888 1889 ciss_kill_notify_thread(sc); 1890 1891 /* disconnect from CAM */ 1892 if (sc->ciss_cam_sim) { 1893 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1894 if (sc->ciss_cam_sim[i]) { 1895 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1896 cam_sim_free(sc->ciss_cam_sim[i]); 1897 } 1898 } 1899 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1900 CISS_PHYSICAL_BASE; i++) { 1901 if (sc->ciss_cam_sim[i]) { 1902 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1903 cam_sim_free(sc->ciss_cam_sim[i]); 1904 } 1905 } 1906 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1907 } 1908 if (sc->ciss_cam_devq) 1909 cam_simq_release(sc->ciss_cam_devq); 1910 1911 /* remove the control device */ 1912 lockmgr(&sc->ciss_lock, LK_RELEASE); 1913 if (sc->ciss_dev_t != NULL) 1914 destroy_dev(sc->ciss_dev_t); 1915 1916 /* Final cleanup of the callout. */ 1917 #if 0 /* XXX swildner callout_drain */ 1918 callout_drain(&sc->ciss_periodic); 1919 #else 1920 callout_stop(&sc->ciss_periodic); 1921 #endif 1922 lockuninit(&sc->ciss_lock); 1923 1924 /* free the controller data */ 1925 if (sc->ciss_id != NULL) 1926 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1927 1928 /* release I/O resources */ 1929 if (sc->ciss_regs_resource != NULL) 1930 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1931 sc->ciss_regs_rid, sc->ciss_regs_resource); 1932 if (sc->ciss_cfg_resource != NULL) 1933 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1934 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1935 if (sc->ciss_intr != NULL) 1936 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1937 if (sc->ciss_irq_resource != NULL) 1938 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1939 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1940 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI) 1941 pci_release_msi(sc->ciss_dev); 1942 1943 while ((cr = ciss_dequeue_free(sc)) != NULL) 1944 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1945 if (sc->ciss_buffer_dmat) 1946 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1947 1948 /* destroy command memory and DMA tag */ 1949 if (sc->ciss_command != NULL) { 1950 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1951 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1952 } 1953 if (sc->ciss_command_dmat) 1954 bus_dma_tag_destroy(sc->ciss_command_dmat); 1955 1956 if (sc->ciss_reply) { 1957 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1958 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1959 } 1960 if (sc->ciss_reply_dmat) 1961 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1962 1963 /* destroy DMA tags */ 1964 if (sc->ciss_parent_dmat) 1965 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1966 if (sc->ciss_logical) { 1967 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1968 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1969 if (sc->ciss_logical[i][j].cl_ldrive) 1970 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1971 if (sc->ciss_logical[i][j].cl_lstatus) 1972 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1973 } 1974 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1975 } 1976 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1977 } 1978 1979 if (sc->ciss_physical) { 1980 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1981 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1982 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1983 } 1984 1985 if (sc->ciss_controllers) 1986 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1987 1988 sysctl_ctx_free(&sc->ciss_sysctl_ctx); 1989 } 1990 1991 /************************************************************************ 1992 * Give a command to the adapter. 1993 * 1994 * Note that this uses the simple transport layer directly. If we 1995 * want to add support for other layers, we'll need a switch of some 1996 * sort. 1997 * 1998 * Note that the simple transport layer has no way of refusing a 1999 * command; we only have as many request structures as the adapter 2000 * supports commands, so we don't have to check (this presumes that 2001 * the adapter can handle commands as fast as we throw them at it). 2002 */ 2003 static int 2004 ciss_start(struct ciss_request *cr) 2005 { 2006 struct ciss_command *cc; /* XXX debugging only */ 2007 int error; 2008 2009 cc = cr->cr_cc; 2010 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2011 2012 /* 2013 * Map the request's data. 2014 */ 2015 if ((error = ciss_map_request(cr))) 2016 return(error); 2017 2018 #if 0 2019 ciss_print_request(cr); 2020 #endif 2021 2022 return(0); 2023 } 2024 2025 /************************************************************************ 2026 * Fetch completed request(s) from the adapter, queue them for 2027 * completion handling. 2028 * 2029 * Note that this uses the simple transport layer directly. If we 2030 * want to add support for other layers, we'll need a switch of some 2031 * sort. 2032 * 2033 * Note that the simple transport mechanism does not require any 2034 * reentrancy protection; the OPQ read is atomic. If there is a 2035 * chance of a race with something else that might move the request 2036 * off the busy list, then we will have to lock against that 2037 * (eg. timeouts, etc.) 2038 */ 2039 static void 2040 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2041 { 2042 struct ciss_request *cr; 2043 struct ciss_command *cc; 2044 u_int32_t tag, index; 2045 2046 debug_called(3); 2047 2048 /* 2049 * Loop quickly taking requests from the adapter and moving them 2050 * to the completed queue. 2051 */ 2052 for (;;) { 2053 2054 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2055 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2056 break; 2057 index = tag >> 2; 2058 debug(2, "completed command %d%s", index, 2059 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2060 if (index >= sc->ciss_max_requests) { 2061 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2062 continue; 2063 } 2064 cr = &(sc->ciss_request[index]); 2065 cc = cr->cr_cc; 2066 cc->header.host_tag = tag; /* not updated by adapter */ 2067 ciss_enqueue_complete(cr, qh); 2068 } 2069 2070 } 2071 2072 static void 2073 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2074 { 2075 struct ciss_request *cr; 2076 struct ciss_command *cc; 2077 u_int32_t tag, index; 2078 2079 debug_called(3); 2080 2081 /* 2082 * Loop quickly taking requests from the adapter and moving them 2083 * to the completed queue. 2084 */ 2085 for (;;) { 2086 tag = sc->ciss_reply[sc->ciss_rqidx]; 2087 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2088 break; 2089 index = tag >> 2; 2090 debug(2, "completed command %d%s\n", index, 2091 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2092 if (index < sc->ciss_max_requests) { 2093 cr = &(sc->ciss_request[index]); 2094 cc = cr->cr_cc; 2095 cc->header.host_tag = tag; /* not updated by adapter */ 2096 ciss_enqueue_complete(cr, qh); 2097 } else { 2098 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2099 } 2100 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2101 sc->ciss_rqidx = 0; 2102 sc->ciss_cycle ^= 1; 2103 } 2104 } 2105 2106 } 2107 2108 /************************************************************************ 2109 * Take an interrupt from the adapter. 2110 */ 2111 static void 2112 ciss_intr(void *arg) 2113 { 2114 cr_qhead_t qh; 2115 struct ciss_softc *sc = (struct ciss_softc *)arg; 2116 2117 /* 2118 * The only interrupt we recognise indicates that there are 2119 * entries in the outbound post queue. 2120 */ 2121 STAILQ_INIT(&qh); 2122 ciss_done(sc, &qh); 2123 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2124 ciss_complete(sc, &qh); 2125 lockmgr(&sc->ciss_lock, LK_RELEASE); 2126 } 2127 2128 static void 2129 ciss_perf_intr(void *arg) 2130 { 2131 struct ciss_softc *sc = (struct ciss_softc *)arg; 2132 2133 /* Clear the interrupt and flush the bridges. Docs say that the flush 2134 * needs to be done twice, which doesn't seem right. 2135 */ 2136 CISS_TL_PERF_CLEAR_INT(sc); 2137 CISS_TL_PERF_FLUSH_INT(sc); 2138 2139 ciss_perf_msi_intr(sc); 2140 } 2141 2142 static void 2143 ciss_perf_msi_intr(void *arg) 2144 { 2145 cr_qhead_t qh; 2146 struct ciss_softc *sc = (struct ciss_softc *)arg; 2147 2148 STAILQ_INIT(&qh); 2149 ciss_perf_done(sc, &qh); 2150 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2151 ciss_complete(sc, &qh); 2152 lockmgr(&sc->ciss_lock, LK_RELEASE); 2153 } 2154 2155 2156 /************************************************************************ 2157 * Process completed requests. 2158 * 2159 * Requests can be completed in three fashions: 2160 * 2161 * - by invoking a callback function (cr_complete is non-null) 2162 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2163 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2164 */ 2165 static void 2166 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2167 { 2168 struct ciss_request *cr; 2169 2170 debug_called(2); 2171 2172 /* 2173 * Loop taking requests off the completed queue and performing 2174 * completion processing on them. 2175 */ 2176 for (;;) { 2177 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2178 break; 2179 ciss_unmap_request(cr); 2180 2181 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2182 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2183 cr->cr_flags &= ~CISS_REQ_BUSY; 2184 2185 /* 2186 * If the request has a callback, invoke it. 2187 */ 2188 if (cr->cr_complete != NULL) { 2189 cr->cr_complete(cr); 2190 continue; 2191 } 2192 2193 /* 2194 * If someone is sleeping on this request, wake them up. 2195 */ 2196 if (cr->cr_flags & CISS_REQ_SLEEP) { 2197 cr->cr_flags &= ~CISS_REQ_SLEEP; 2198 wakeup(cr); 2199 continue; 2200 } 2201 2202 /* 2203 * If someone is polling this request for completion, signal. 2204 */ 2205 if (cr->cr_flags & CISS_REQ_POLL) { 2206 cr->cr_flags &= ~CISS_REQ_POLL; 2207 continue; 2208 } 2209 2210 /* 2211 * Give up and throw the request back on the free queue. This 2212 * should never happen; resources will probably be lost. 2213 */ 2214 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2215 ciss_enqueue_free(cr); 2216 } 2217 } 2218 2219 /************************************************************************ 2220 * Report on the completion status of a request, and pass back SCSI 2221 * and command status values. 2222 */ 2223 static int 2224 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2225 { 2226 struct ciss_command *cc; 2227 struct ciss_error_info *ce; 2228 2229 debug_called(2); 2230 2231 cc = cr->cr_cc; 2232 ce = (struct ciss_error_info *)&(cc->sg[0]); 2233 2234 /* 2235 * We don't consider data under/overrun an error for the Report 2236 * Logical/Physical LUNs commands. 2237 */ 2238 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2239 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2240 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2241 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2242 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2243 (cc->cdb.cdb[0] == INQUIRY))) { 2244 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2245 debug(2, "ignoring irrelevant under/overrun error"); 2246 } 2247 2248 /* 2249 * Check the command's error bit, if clear, there's no status and 2250 * everything is OK. 2251 */ 2252 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2253 if (scsi_status != NULL) 2254 *scsi_status = SCSI_STATUS_OK; 2255 if (command_status != NULL) 2256 *command_status = CISS_CMD_STATUS_SUCCESS; 2257 return(0); 2258 } else { 2259 if (command_status != NULL) 2260 *command_status = ce->command_status; 2261 if (scsi_status != NULL) { 2262 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2263 *scsi_status = ce->scsi_status; 2264 } else { 2265 *scsi_status = -1; 2266 } 2267 } 2268 if (bootverbose) 2269 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2270 ce->command_status, ciss_name_command_status(ce->command_status), 2271 ce->scsi_status); 2272 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2273 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2274 ce->additional_error_info.invalid_command.offense_size, 2275 ce->additional_error_info.invalid_command.offense_offset, 2276 ce->additional_error_info.invalid_command.offense_value, 2277 func); 2278 } 2279 } 2280 #if 0 2281 ciss_print_request(cr); 2282 #endif 2283 return(1); 2284 } 2285 2286 /************************************************************************ 2287 * Issue a request and don't return until it's completed. 2288 * 2289 * Depending on adapter status, we may poll or sleep waiting for 2290 * completion. 2291 */ 2292 static int 2293 ciss_synch_request(struct ciss_request *cr, int timeout) 2294 { 2295 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2296 return(ciss_wait_request(cr, timeout)); 2297 } else { 2298 return(ciss_poll_request(cr, timeout)); 2299 } 2300 } 2301 2302 /************************************************************************ 2303 * Issue a request and poll for completion. 2304 * 2305 * Timeout in milliseconds. 2306 */ 2307 static int 2308 ciss_poll_request(struct ciss_request *cr, int timeout) 2309 { 2310 cr_qhead_t qh; 2311 struct ciss_softc *sc; 2312 int error; 2313 2314 debug_called(2); 2315 2316 STAILQ_INIT(&qh); 2317 sc = cr->cr_sc; 2318 cr->cr_flags |= CISS_REQ_POLL; 2319 if ((error = ciss_start(cr)) != 0) 2320 return(error); 2321 2322 do { 2323 if (sc->ciss_perf) 2324 ciss_perf_done(sc, &qh); 2325 else 2326 ciss_done(sc, &qh); 2327 ciss_complete(sc, &qh); 2328 if (!(cr->cr_flags & CISS_REQ_POLL)) 2329 return(0); 2330 DELAY(1000); 2331 } while (timeout-- >= 0); 2332 return(EWOULDBLOCK); 2333 } 2334 2335 /************************************************************************ 2336 * Issue a request and sleep waiting for completion. 2337 * 2338 * Timeout in milliseconds. Note that a spurious wakeup will reset 2339 * the timeout. 2340 */ 2341 static int 2342 ciss_wait_request(struct ciss_request *cr, int timeout) 2343 { 2344 int error; 2345 2346 debug_called(2); 2347 2348 cr->cr_flags |= CISS_REQ_SLEEP; 2349 if ((error = ciss_start(cr)) != 0) 2350 return(error); 2351 2352 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2353 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000); 2354 } 2355 return(error); 2356 } 2357 2358 #if 0 2359 /************************************************************************ 2360 * Abort a request. Note that a potential exists here to race the 2361 * request being completed; the caller must deal with this. 2362 */ 2363 static int 2364 ciss_abort_request(struct ciss_request *ar) 2365 { 2366 struct ciss_request *cr; 2367 struct ciss_command *cc; 2368 struct ciss_message_cdb *cmc; 2369 int error; 2370 2371 debug_called(1); 2372 2373 /* get a request */ 2374 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2375 return(error); 2376 2377 /* build the abort command */ 2378 cc = cr->cr_cc; 2379 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2380 cc->header.address.physical.target = 0; 2381 cc->header.address.physical.bus = 0; 2382 cc->cdb.cdb_length = sizeof(*cmc); 2383 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2384 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2385 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2386 cc->cdb.timeout = 30; 2387 2388 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2389 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2390 cmc->type = CISS_MESSAGE_ABORT_TASK; 2391 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2392 2393 /* 2394 * Send the request and wait for a response. If we believe we 2395 * aborted the request OK, clear the flag that indicates it's 2396 * running. 2397 */ 2398 error = ciss_synch_request(cr, 35 * 1000); 2399 if (!error) 2400 error = ciss_report_request(cr, NULL, NULL); 2401 ciss_release_request(cr); 2402 2403 return(error); 2404 } 2405 #endif 2406 2407 2408 /************************************************************************ 2409 * Fetch and initialise a request 2410 */ 2411 static int 2412 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2413 { 2414 struct ciss_request *cr; 2415 2416 debug_called(2); 2417 2418 /* 2419 * Get a request and clean it up. 2420 */ 2421 if ((cr = ciss_dequeue_free(sc)) == NULL) 2422 return(ENOMEM); 2423 2424 cr->cr_data = NULL; 2425 cr->cr_flags = 0; 2426 cr->cr_complete = NULL; 2427 cr->cr_private = NULL; 2428 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2429 2430 ciss_preen_command(cr); 2431 *crp = cr; 2432 return(0); 2433 } 2434 2435 static void 2436 ciss_preen_command(struct ciss_request *cr) 2437 { 2438 struct ciss_command *cc; 2439 u_int32_t cmdphys; 2440 2441 /* 2442 * Clean up the command structure. 2443 * 2444 * Note that we set up the error_info structure here, since the 2445 * length can be overwritten by any command. 2446 */ 2447 cc = cr->cr_cc; 2448 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2449 cc->header.sg_total = 0; 2450 cc->header.host_tag = cr->cr_tag << 2; 2451 cc->header.host_tag_zeroes = 0; 2452 cmdphys = cr->cr_ccphys; 2453 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2454 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2455 } 2456 2457 /************************************************************************ 2458 * Release a request to the free list. 2459 */ 2460 static void 2461 ciss_release_request(struct ciss_request *cr) 2462 { 2463 struct ciss_softc *sc; 2464 2465 debug_called(2); 2466 2467 sc = cr->cr_sc; 2468 2469 /* release the request to the free queue */ 2470 ciss_requeue_free(cr); 2471 } 2472 2473 /************************************************************************ 2474 * Allocate a request that will be used to send a BMIC command. Do some 2475 * of the common setup here to avoid duplicating it everywhere else. 2476 */ 2477 static int 2478 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2479 int opcode, void **bufp, size_t bufsize) 2480 { 2481 struct ciss_request *cr; 2482 struct ciss_command *cc; 2483 struct ciss_bmic_cdb *cbc; 2484 void *buf; 2485 int error; 2486 int dataout; 2487 2488 debug_called(2); 2489 2490 cr = NULL; 2491 buf = NULL; 2492 2493 /* 2494 * Get a request. 2495 */ 2496 if ((error = ciss_get_request(sc, &cr)) != 0) 2497 goto out; 2498 2499 /* 2500 * Allocate data storage if requested, determine the data direction. 2501 */ 2502 dataout = 0; 2503 if ((bufsize > 0) && (bufp != NULL)) { 2504 if (*bufp == NULL) { 2505 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2506 } else { 2507 buf = *bufp; 2508 dataout = 1; /* we are given a buffer, so we are writing */ 2509 } 2510 } 2511 2512 /* 2513 * Build a CISS BMIC command to get the logical drive ID. 2514 */ 2515 cr->cr_data = buf; 2516 cr->cr_length = bufsize; 2517 if (!dataout) 2518 cr->cr_flags = CISS_REQ_DATAIN; 2519 2520 cc = cr->cr_cc; 2521 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2522 cc->header.address.physical.bus = 0; 2523 cc->header.address.physical.target = 0; 2524 cc->cdb.cdb_length = sizeof(*cbc); 2525 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2526 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2527 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2528 cc->cdb.timeout = 0; 2529 2530 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2531 bzero(cbc, sizeof(*cbc)); 2532 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2533 cbc->bmic_opcode = opcode; 2534 cbc->size = htons((u_int16_t)bufsize); 2535 2536 out: 2537 if (error) { 2538 if (cr != NULL) 2539 ciss_release_request(cr); 2540 } else { 2541 *crp = cr; 2542 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2543 *bufp = buf; 2544 } 2545 return(error); 2546 } 2547 2548 /************************************************************************ 2549 * Handle a command passed in from userspace. 2550 */ 2551 static int 2552 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2553 { 2554 struct ciss_request *cr; 2555 struct ciss_command *cc; 2556 struct ciss_error_info *ce; 2557 int error = 0; 2558 2559 debug_called(1); 2560 2561 cr = NULL; 2562 2563 /* 2564 * Get a request. 2565 */ 2566 while (ciss_get_request(sc, &cr) != 0) 2567 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz); 2568 cc = cr->cr_cc; 2569 2570 /* 2571 * Allocate an in-kernel databuffer if required, copy in user data. 2572 */ 2573 lockmgr(&sc->ciss_lock, LK_RELEASE); 2574 cr->cr_length = ioc->buf_size; 2575 if (ioc->buf_size > 0) { 2576 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2577 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2578 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2579 goto out_unlocked; 2580 } 2581 } 2582 2583 /* 2584 * Build the request based on the user command. 2585 */ 2586 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2587 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2588 2589 /* XXX anything else to populate here? */ 2590 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2591 2592 /* 2593 * Run the command. 2594 */ 2595 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2596 debug(0, "request failed - %d", error); 2597 goto out; 2598 } 2599 2600 /* 2601 * Check to see if the command succeeded. 2602 */ 2603 ce = (struct ciss_error_info *)&(cc->sg[0]); 2604 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2605 bzero(ce, sizeof(*ce)); 2606 2607 /* 2608 * Copy the results back to the user. 2609 */ 2610 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2611 lockmgr(&sc->ciss_lock, LK_RELEASE); 2612 if ((ioc->buf_size > 0) && 2613 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2614 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2615 goto out_unlocked; 2616 } 2617 2618 /* done OK */ 2619 error = 0; 2620 2621 out_unlocked: 2622 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2623 2624 out: 2625 if ((cr != NULL) && (cr->cr_data != NULL)) 2626 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2627 if (cr != NULL) 2628 ciss_release_request(cr); 2629 return(error); 2630 } 2631 2632 /************************************************************************ 2633 * Map a request into bus-visible space, initialise the scatter/gather 2634 * list. 2635 */ 2636 static int 2637 ciss_map_request(struct ciss_request *cr) 2638 { 2639 struct ciss_softc *sc; 2640 int error = 0; 2641 2642 debug_called(2); 2643 2644 sc = cr->cr_sc; 2645 2646 /* check that mapping is necessary */ 2647 if (cr->cr_flags & CISS_REQ_MAPPED) 2648 return(0); 2649 2650 cr->cr_flags |= CISS_REQ_MAPPED; 2651 2652 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2653 BUS_DMASYNC_PREWRITE); 2654 2655 if (cr->cr_data != NULL) { 2656 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2657 cr->cr_data, cr->cr_length, 2658 ciss_request_map_helper, cr, 0); 2659 if (error != 0) 2660 return (error); 2661 } else { 2662 /* 2663 * Post the command to the adapter. 2664 */ 2665 cr->cr_sg_tag = CISS_SG_NONE; 2666 cr->cr_flags |= CISS_REQ_BUSY; 2667 if (sc->ciss_perf) 2668 CISS_TL_PERF_POST_CMD(sc, cr); 2669 else 2670 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2671 } 2672 2673 return(0); 2674 } 2675 2676 static void 2677 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2678 { 2679 struct ciss_command *cc; 2680 struct ciss_request *cr; 2681 struct ciss_softc *sc; 2682 int i; 2683 2684 debug_called(2); 2685 2686 cr = (struct ciss_request *)arg; 2687 sc = cr->cr_sc; 2688 cc = cr->cr_cc; 2689 2690 for (i = 0; i < nseg; i++) { 2691 cc->sg[i].address = segs[i].ds_addr; 2692 cc->sg[i].length = segs[i].ds_len; 2693 cc->sg[i].extension = 0; 2694 } 2695 /* we leave the s/g table entirely within the command */ 2696 cc->header.sg_in_list = nseg; 2697 cc->header.sg_total = nseg; 2698 2699 if (cr->cr_flags & CISS_REQ_DATAIN) 2700 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2701 if (cr->cr_flags & CISS_REQ_DATAOUT) 2702 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2703 2704 if (nseg == 0) 2705 cr->cr_sg_tag = CISS_SG_NONE; 2706 else if (nseg == 1) 2707 cr->cr_sg_tag = CISS_SG_1; 2708 else if (nseg == 2) 2709 cr->cr_sg_tag = CISS_SG_2; 2710 else if (nseg <= 4) 2711 cr->cr_sg_tag = CISS_SG_4; 2712 else if (nseg <= 8) 2713 cr->cr_sg_tag = CISS_SG_8; 2714 else if (nseg <= 16) 2715 cr->cr_sg_tag = CISS_SG_16; 2716 else if (nseg <= 32) 2717 cr->cr_sg_tag = CISS_SG_32; 2718 else 2719 cr->cr_sg_tag = CISS_SG_MAX; 2720 2721 /* 2722 * Post the command to the adapter. 2723 */ 2724 cr->cr_flags |= CISS_REQ_BUSY; 2725 if (sc->ciss_perf) 2726 CISS_TL_PERF_POST_CMD(sc, cr); 2727 else 2728 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2729 } 2730 2731 /************************************************************************ 2732 * Unmap a request from bus-visible space. 2733 */ 2734 static void 2735 ciss_unmap_request(struct ciss_request *cr) 2736 { 2737 struct ciss_softc *sc; 2738 2739 debug_called(2); 2740 2741 sc = cr->cr_sc; 2742 2743 /* check that unmapping is necessary */ 2744 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2745 return; 2746 2747 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2748 BUS_DMASYNC_POSTWRITE); 2749 2750 if (cr->cr_data == NULL) 2751 goto out; 2752 2753 if (cr->cr_flags & CISS_REQ_DATAIN) 2754 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2755 if (cr->cr_flags & CISS_REQ_DATAOUT) 2756 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2757 2758 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2759 out: 2760 cr->cr_flags &= ~CISS_REQ_MAPPED; 2761 } 2762 2763 /************************************************************************ 2764 * Attach the driver to CAM. 2765 * 2766 * We put all the logical drives on a single SCSI bus. 2767 */ 2768 static int 2769 ciss_cam_init(struct ciss_softc *sc) 2770 { 2771 int i, maxbus; 2772 2773 debug_called(1); 2774 2775 /* 2776 * Allocate a devq. We can reuse this for the masked physical 2777 * devices if we decide to export these as well. 2778 */ 2779 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2780 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2781 return(ENOMEM); 2782 } 2783 2784 /* 2785 * Create a SIM. 2786 * 2787 * This naturally wastes a bit of memory. The alternative is to allocate 2788 * and register each bus as it is found, and then track them on a linked 2789 * list. Unfortunately, the driver has a few places where it needs to 2790 * look up the SIM based solely on bus number, and it's unclear whether 2791 * a list traversal would work for these situations. 2792 */ 2793 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2794 CISS_PHYSICAL_BASE); 2795 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2796 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2797 2798 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2799 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2800 "ciss", sc, 2801 device_get_unit(sc->ciss_dev), 2802 &sc->ciss_lock, 2803 2, 2804 sc->ciss_max_requests - 2, 2805 sc->ciss_cam_devq)) == NULL) { 2806 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2807 return(ENOMEM); 2808 } 2809 2810 /* 2811 * Register bus with this SIM. 2812 */ 2813 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2814 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2815 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2816 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2817 lockmgr(&sc->ciss_lock, LK_RELEASE); 2818 return (ENXIO); 2819 } 2820 } 2821 lockmgr(&sc->ciss_lock, LK_RELEASE); 2822 } 2823 2824 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2825 CISS_PHYSICAL_BASE; i++) { 2826 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2827 "ciss", sc, 2828 device_get_unit(sc->ciss_dev), 2829 &sc->ciss_lock, 1, 2830 sc->ciss_max_requests - 2, 2831 sc->ciss_cam_devq)) == NULL) { 2832 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2833 return (ENOMEM); 2834 } 2835 2836 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2837 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2838 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2839 lockmgr(&sc->ciss_lock, LK_RELEASE); 2840 return (ENXIO); 2841 } 2842 lockmgr(&sc->ciss_lock, LK_RELEASE); 2843 } 2844 2845 /* 2846 * Initiate a rescan of the bus. 2847 */ 2848 ciss_cam_rescan_all(sc); 2849 2850 return(0); 2851 } 2852 2853 /************************************************************************ 2854 * Initiate a rescan of the 'logical devices' SIM 2855 */ 2856 static void 2857 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2858 { 2859 union ccb *ccb; 2860 2861 debug_called(1); 2862 2863 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2864 2865 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2866 cam_sim_path(sc->ciss_cam_sim[bus]), 2867 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2868 ciss_printf(sc, "rescan failed (can't create path)\n"); 2869 kfree(ccb, M_TEMP); 2870 return; 2871 } 2872 2873 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 2874 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2875 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2876 ccb->crcn.flags = CAM_FLAG_NONE; 2877 xpt_action(ccb); 2878 2879 /* scan is now in progress */ 2880 } 2881 2882 static void 2883 ciss_cam_rescan_all(struct ciss_softc *sc) 2884 { 2885 int i; 2886 2887 /* Rescan the logical buses */ 2888 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2889 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2890 /* Rescan the physical buses */ 2891 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2892 CISS_PHYSICAL_BASE; i++) 2893 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2894 } 2895 2896 static void 2897 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2898 { 2899 xpt_free_path(ccb->ccb_h.path); 2900 kfree(ccb, M_TEMP); 2901 } 2902 2903 /************************************************************************ 2904 * Handle requests coming from CAM 2905 */ 2906 static void 2907 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2908 { 2909 struct ciss_softc *sc; 2910 struct ccb_scsiio *csio; 2911 int bus, target; 2912 int physical; 2913 2914 sc = cam_sim_softc(sim); 2915 bus = cam_sim_bus(sim); 2916 csio = (struct ccb_scsiio *)&ccb->csio; 2917 target = csio->ccb_h.target_id; 2918 physical = CISS_IS_PHYSICAL(bus); 2919 2920 switch (ccb->ccb_h.func_code) { 2921 2922 /* perform SCSI I/O */ 2923 case XPT_SCSI_IO: 2924 if (!ciss_cam_action_io(sim, csio)) 2925 return; 2926 break; 2927 2928 /* perform geometry calculations */ 2929 case XPT_CALC_GEOMETRY: 2930 { 2931 struct ccb_calc_geometry *ccg = &ccb->ccg; 2932 struct ciss_ldrive *ld; 2933 2934 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2935 2936 ld = NULL; 2937 if (!physical) 2938 ld = &sc->ciss_logical[bus][target]; 2939 2940 /* 2941 * Use the cached geometry settings unless the fault tolerance 2942 * is invalid. 2943 */ 2944 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2945 u_int32_t secs_per_cylinder; 2946 2947 ccg->heads = 255; 2948 ccg->secs_per_track = 32; 2949 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2950 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2951 } else { 2952 ccg->heads = ld->cl_geometry.heads; 2953 ccg->secs_per_track = ld->cl_geometry.sectors; 2954 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2955 } 2956 ccb->ccb_h.status = CAM_REQ_CMP; 2957 break; 2958 } 2959 2960 /* handle path attribute inquiry */ 2961 case XPT_PATH_INQ: 2962 { 2963 struct ccb_pathinq *cpi = &ccb->cpi; 2964 2965 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2966 2967 cpi->version_num = 1; 2968 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2969 cpi->target_sprt = 0; 2970 cpi->hba_misc = 0; 2971 cpi->max_target = CISS_MAX_LOGICAL; 2972 cpi->max_lun = 0; /* 'logical drive' channel only */ 2973 cpi->initiator_id = CISS_MAX_LOGICAL; 2974 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2975 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2976 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2977 cpi->unit_number = cam_sim_unit(sim); 2978 cpi->bus_id = cam_sim_bus(sim); 2979 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2980 cpi->transport = XPORT_SPI; 2981 cpi->transport_version = 2; 2982 cpi->protocol = PROTO_SCSI; 2983 cpi->protocol_version = SCSI_REV_2; 2984 #if 0 /* XXX swildner */ 2985 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2986 #endif 2987 ccb->ccb_h.status = CAM_REQ_CMP; 2988 break; 2989 } 2990 2991 case XPT_GET_TRAN_SETTINGS: 2992 { 2993 struct ccb_trans_settings *cts = &ccb->cts; 2994 int bus, target; 2995 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2996 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2997 2998 bus = cam_sim_bus(sim); 2999 target = cts->ccb_h.target_id; 3000 3001 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3002 /* disconnect always OK */ 3003 cts->protocol = PROTO_SCSI; 3004 cts->protocol_version = SCSI_REV_2; 3005 cts->transport = XPORT_SPI; 3006 cts->transport_version = 2; 3007 3008 spi->valid = CTS_SPI_VALID_DISC; 3009 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3010 3011 scsi->valid = CTS_SCSI_VALID_TQ; 3012 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3013 3014 cts->ccb_h.status = CAM_REQ_CMP; 3015 break; 3016 } 3017 3018 default: /* we can't do this */ 3019 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3020 ccb->ccb_h.status = CAM_REQ_INVALID; 3021 break; 3022 } 3023 3024 xpt_done(ccb); 3025 } 3026 3027 /************************************************************************ 3028 * Handle a CAM SCSI I/O request. 3029 */ 3030 static int 3031 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3032 { 3033 struct ciss_softc *sc; 3034 int bus, target; 3035 struct ciss_request *cr; 3036 struct ciss_command *cc; 3037 int error; 3038 3039 sc = cam_sim_softc(sim); 3040 bus = cam_sim_bus(sim); 3041 target = csio->ccb_h.target_id; 3042 3043 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3044 3045 /* check that the CDB pointer is not to a physical address */ 3046 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3047 debug(3, " CDB pointer is to physical address"); 3048 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3049 } 3050 3051 /* if there is data transfer, it must be to/from a virtual address */ 3052 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3053 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3054 debug(3, " data pointer is to physical address"); 3055 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3056 } 3057 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3058 debug(3, " data has premature s/g setup"); 3059 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3060 } 3061 } 3062 3063 /* abandon aborted ccbs or those that have failed validation */ 3064 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3065 debug(3, "abandoning CCB due to abort/validation failure"); 3066 return(EINVAL); 3067 } 3068 3069 /* handle emulation of some SCSI commands ourself */ 3070 if (ciss_cam_emulate(sc, csio)) 3071 return(0); 3072 3073 /* 3074 * Get a request to manage this command. If we can't, return the 3075 * ccb, freeze the queue and flag so that we unfreeze it when a 3076 * request completes. 3077 */ 3078 if ((error = ciss_get_request(sc, &cr)) != 0) { 3079 xpt_freeze_simq(sim, 1); 3080 sc->ciss_flags |= CISS_FLAG_BUSY; 3081 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3082 return(error); 3083 } 3084 3085 /* 3086 * Build the command. 3087 */ 3088 cc = cr->cr_cc; 3089 cr->cr_data = csio->data_ptr; 3090 cr->cr_length = csio->dxfer_len; 3091 cr->cr_complete = ciss_cam_complete; 3092 cr->cr_private = csio; 3093 3094 /* 3095 * Target the right logical volume. 3096 */ 3097 if (CISS_IS_PHYSICAL(bus)) 3098 cc->header.address = 3099 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3100 else 3101 cc->header.address = 3102 sc->ciss_logical[bus][target].cl_address; 3103 cc->cdb.cdb_length = csio->cdb_len; 3104 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3105 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3106 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3107 cr->cr_flags = CISS_REQ_DATAOUT; 3108 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3109 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3110 cr->cr_flags = CISS_REQ_DATAIN; 3111 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3112 } else { 3113 cr->cr_flags = 0; 3114 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3115 } 3116 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3117 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3118 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3119 } else { 3120 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3121 } 3122 3123 /* 3124 * Submit the request to the adapter. 3125 * 3126 * Note that this may fail if we're unable to map the request (and 3127 * if we ever learn a transport layer other than simple, may fail 3128 * if the adapter rejects the command). 3129 */ 3130 if ((error = ciss_start(cr)) != 0) { 3131 xpt_freeze_simq(sim, 1); 3132 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3133 if (error == EINPROGRESS) { 3134 error = 0; 3135 } else { 3136 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3137 ciss_release_request(cr); 3138 } 3139 return(error); 3140 } 3141 3142 return(0); 3143 } 3144 3145 /************************************************************************ 3146 * Emulate SCSI commands the adapter doesn't handle as we might like. 3147 */ 3148 static int 3149 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3150 { 3151 int bus, target; 3152 u_int8_t opcode; 3153 3154 target = csio->ccb_h.target_id; 3155 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3156 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3157 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3158 3159 if (CISS_IS_PHYSICAL(bus)) { 3160 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3161 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3162 xpt_done((union ccb *)csio); 3163 return(1); 3164 } else 3165 return(0); 3166 } 3167 3168 /* 3169 * Handle requests for volumes that don't exist or are not online. 3170 * A selection timeout is slightly better than an illegal request. 3171 * Other errors might be better. 3172 */ 3173 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3174 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3175 xpt_done((union ccb *)csio); 3176 return(1); 3177 } 3178 3179 /* if we have to fake Synchronise Cache */ 3180 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3181 /* 3182 * If this is a Synchronise Cache command, typically issued when 3183 * a device is closed, flush the adapter and complete now. 3184 */ 3185 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3186 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3187 ciss_flush_adapter(sc); 3188 csio->ccb_h.status |= CAM_REQ_CMP; 3189 xpt_done((union ccb *)csio); 3190 return(1); 3191 } 3192 } 3193 3194 return(0); 3195 } 3196 3197 /************************************************************************ 3198 * Check for possibly-completed commands. 3199 */ 3200 static void 3201 ciss_cam_poll(struct cam_sim *sim) 3202 { 3203 cr_qhead_t qh; 3204 struct ciss_softc *sc = cam_sim_softc(sim); 3205 3206 debug_called(2); 3207 3208 STAILQ_INIT(&qh); 3209 if (sc->ciss_perf) 3210 ciss_perf_done(sc, &qh); 3211 else 3212 ciss_done(sc, &qh); 3213 ciss_complete(sc, &qh); 3214 } 3215 3216 /************************************************************************ 3217 * Handle completion of a command - pass results back through the CCB 3218 */ 3219 static void 3220 ciss_cam_complete(struct ciss_request *cr) 3221 { 3222 struct ciss_softc *sc; 3223 struct ciss_command *cc; 3224 struct ciss_error_info *ce; 3225 struct ccb_scsiio *csio; 3226 int scsi_status; 3227 int command_status; 3228 3229 debug_called(2); 3230 3231 sc = cr->cr_sc; 3232 cc = cr->cr_cc; 3233 ce = (struct ciss_error_info *)&(cc->sg[0]); 3234 csio = (struct ccb_scsiio *)cr->cr_private; 3235 3236 /* 3237 * Extract status values from request. 3238 */ 3239 ciss_report_request(cr, &command_status, &scsi_status); 3240 csio->scsi_status = scsi_status; 3241 3242 /* 3243 * Handle specific SCSI status values. 3244 */ 3245 switch(scsi_status) { 3246 /* no status due to adapter error */ 3247 case -1: 3248 debug(0, "adapter error"); 3249 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3250 break; 3251 3252 /* no status due to command completed OK */ 3253 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3254 debug(2, "SCSI_STATUS_OK"); 3255 csio->ccb_h.status |= CAM_REQ_CMP; 3256 break; 3257 3258 /* check condition, sense data included */ 3259 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3260 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3261 ce->sense_length, ce->residual_count); 3262 bzero(&csio->sense_data, SSD_FULL_SIZE); 3263 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3264 if (csio->sense_len > ce->sense_length) 3265 csio->sense_resid = csio->sense_len - ce->sense_length; 3266 else 3267 csio->sense_resid = 0; 3268 csio->resid = ce->residual_count; 3269 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3270 #ifdef CISS_DEBUG 3271 { 3272 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3273 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3274 csio->sense_resid, /*show_errors*/ 1)); 3275 } 3276 #endif 3277 break; 3278 3279 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3280 debug(0, "SCSI_STATUS_BUSY"); 3281 csio->ccb_h.status |= CAM_SCSI_BUSY; 3282 break; 3283 3284 default: 3285 debug(0, "unknown status 0x%x", csio->scsi_status); 3286 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3287 break; 3288 } 3289 3290 /* handle post-command fixup */ 3291 ciss_cam_complete_fixup(sc, csio); 3292 3293 ciss_release_request(cr); 3294 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3295 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3296 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3297 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3298 else 3299 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3300 } 3301 xpt_done((union ccb *)csio); 3302 } 3303 3304 /******************************************************************************** 3305 * Fix up the result of some commands here. 3306 */ 3307 static void 3308 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3309 { 3310 struct scsi_inquiry_data *inq; 3311 struct ciss_ldrive *cl; 3312 uint8_t *cdb; 3313 int bus, target; 3314 3315 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3316 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3317 if (cdb[0] == INQUIRY && 3318 (cdb[1] & SI_EVPD) == 0 && 3319 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3320 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3321 3322 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3323 target = csio->ccb_h.target_id; 3324 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3325 3326 /* 3327 * Don't let hard drives be seen by the DA driver. They will still be 3328 * attached by the PASS driver. 3329 */ 3330 if (CISS_IS_PHYSICAL(bus)) { 3331 if (SID_TYPE(inq) == T_DIRECT) 3332 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3333 return; 3334 } 3335 3336 cl = &sc->ciss_logical[bus][target]; 3337 3338 padstr(inq->vendor, "COMPAQ", 8); 3339 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3340 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3341 } 3342 } 3343 3344 3345 /******************************************************************************** 3346 * Find a peripheral attached at (target) 3347 */ 3348 static struct cam_periph * 3349 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3350 { 3351 struct cam_periph *periph; 3352 struct cam_path *path; 3353 int status; 3354 3355 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3356 target, 0); 3357 if (status == CAM_REQ_CMP) { 3358 periph = cam_periph_find(path, NULL); 3359 xpt_free_path(path); 3360 } else { 3361 periph = NULL; 3362 } 3363 return(periph); 3364 } 3365 3366 /******************************************************************************** 3367 * Name the device at (target) 3368 * 3369 * XXX is this strictly correct? 3370 */ 3371 static int 3372 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3373 { 3374 struct cam_periph *periph; 3375 3376 if (CISS_IS_PHYSICAL(bus)) 3377 return (0); 3378 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3379 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3380 periph->periph_name, periph->unit_number); 3381 return(0); 3382 } 3383 sc->ciss_logical[bus][target].cl_name[0] = 0; 3384 return(ENOENT); 3385 } 3386 3387 /************************************************************************ 3388 * Periodic status monitoring. 3389 */ 3390 static void 3391 ciss_periodic(void *arg) 3392 { 3393 struct ciss_softc *sc = (struct ciss_softc *)arg; 3394 struct ciss_request *cr = NULL; 3395 struct ciss_command *cc = NULL; 3396 int error = 0; 3397 3398 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 3399 debug_called(1); 3400 3401 /* 3402 * Check the adapter heartbeat. 3403 */ 3404 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3405 sc->ciss_heart_attack++; 3406 debug(0, "adapter heart attack in progress 0x%x/%d", 3407 sc->ciss_heartbeat, sc->ciss_heart_attack); 3408 if (sc->ciss_heart_attack == 3) { 3409 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3410 ciss_disable_adapter(sc); 3411 lockmgr(&sc->ciss_lock, LK_RELEASE); 3412 return; 3413 } 3414 } else { 3415 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3416 sc->ciss_heart_attack = 0; 3417 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3418 } 3419 3420 /* 3421 * Send the NOP message and wait for a response. 3422 */ 3423 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3424 cc = cr->cr_cc; 3425 cr->cr_complete = ciss_nop_complete; 3426 cc->cdb.cdb_length = 1; 3427 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3428 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3429 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3430 cc->cdb.timeout = 0; 3431 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3432 3433 if ((error = ciss_start(cr)) != 0) { 3434 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3435 } 3436 } 3437 3438 /* 3439 * If the notify event request has died for some reason, or has 3440 * not started yet, restart it. 3441 */ 3442 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3443 debug(0, "(re)starting Event Notify chain"); 3444 ciss_notify_event(sc); 3445 } 3446 lockmgr(&sc->ciss_lock, LK_RELEASE); 3447 3448 /* 3449 * Reschedule. 3450 */ 3451 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3452 } 3453 3454 static void 3455 ciss_nop_complete(struct ciss_request *cr) 3456 { 3457 struct ciss_softc *sc; 3458 static int first_time = 1; 3459 3460 sc = cr->cr_sc; 3461 if (ciss_report_request(cr, NULL, NULL) != 0) { 3462 if (first_time == 1) { 3463 first_time = 0; 3464 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3465 } 3466 } 3467 3468 ciss_release_request(cr); 3469 } 3470 3471 /************************************************************************ 3472 * Disable the adapter. 3473 * 3474 * The all requests in completed queue is failed with hardware error. 3475 * This will cause failover in a multipath configuration. 3476 */ 3477 static void 3478 ciss_disable_adapter(struct ciss_softc *sc) 3479 { 3480 cr_qhead_t qh; 3481 struct ciss_request *cr; 3482 struct ciss_command *cc; 3483 struct ciss_error_info *ce; 3484 int i; 3485 3486 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3487 pci_disable_busmaster(sc->ciss_dev); 3488 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3489 3490 for (i = 1; i < sc->ciss_max_requests; i++) { 3491 cr = &sc->ciss_request[i]; 3492 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3493 continue; 3494 3495 cc = cr->cr_cc; 3496 ce = (struct ciss_error_info *)&(cc->sg[0]); 3497 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3498 ciss_enqueue_complete(cr, &qh); 3499 } 3500 3501 for (;;) { 3502 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3503 break; 3504 3505 /* 3506 * If the request has a callback, invoke it. 3507 */ 3508 if (cr->cr_complete != NULL) { 3509 cr->cr_complete(cr); 3510 continue; 3511 } 3512 3513 /* 3514 * If someone is sleeping on this request, wake them up. 3515 */ 3516 if (cr->cr_flags & CISS_REQ_SLEEP) { 3517 cr->cr_flags &= ~CISS_REQ_SLEEP; 3518 wakeup(cr); 3519 continue; 3520 } 3521 } 3522 } 3523 3524 /************************************************************************ 3525 * Request a notification response from the adapter. 3526 * 3527 * If (cr) is NULL, this is the first request of the adapter, so 3528 * reset the adapter's message pointer and start with the oldest 3529 * message available. 3530 */ 3531 static void 3532 ciss_notify_event(struct ciss_softc *sc) 3533 { 3534 struct ciss_request *cr; 3535 struct ciss_command *cc; 3536 struct ciss_notify_cdb *cnc; 3537 int error; 3538 3539 debug_called(1); 3540 3541 cr = sc->ciss_periodic_notify; 3542 3543 /* get a request if we don't already have one */ 3544 if (cr == NULL) { 3545 if ((error = ciss_get_request(sc, &cr)) != 0) { 3546 debug(0, "can't get notify event request"); 3547 goto out; 3548 } 3549 sc->ciss_periodic_notify = cr; 3550 cr->cr_complete = ciss_notify_complete; 3551 debug(1, "acquired request %d", cr->cr_tag); 3552 } 3553 3554 /* 3555 * Get a databuffer if we don't already have one, note that the 3556 * adapter command wants a larger buffer than the actual 3557 * structure. 3558 */ 3559 if (cr->cr_data == NULL) { 3560 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3561 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3562 } 3563 3564 /* re-setup the request's command (since we never release it) XXX overkill*/ 3565 ciss_preen_command(cr); 3566 3567 /* (re)build the notify event command */ 3568 cc = cr->cr_cc; 3569 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3570 cc->header.address.physical.bus = 0; 3571 cc->header.address.physical.target = 0; 3572 3573 cc->cdb.cdb_length = sizeof(*cnc); 3574 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3575 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3576 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3577 cc->cdb.timeout = 0; /* no timeout, we hope */ 3578 3579 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3580 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3581 cnc->opcode = CISS_OPCODE_READ; 3582 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3583 cnc->timeout = 0; /* no timeout, we hope */ 3584 cnc->synchronous = 0; 3585 cnc->ordered = 0; 3586 cnc->seek_to_oldest = 0; 3587 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3588 cnc->new_only = 1; 3589 else 3590 cnc->new_only = 0; 3591 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3592 3593 /* submit the request */ 3594 error = ciss_start(cr); 3595 3596 out: 3597 if (error) { 3598 if (cr != NULL) { 3599 if (cr->cr_data != NULL) 3600 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3601 ciss_release_request(cr); 3602 } 3603 sc->ciss_periodic_notify = NULL; 3604 debug(0, "can't submit notify event request"); 3605 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3606 } else { 3607 debug(1, "notify event submitted"); 3608 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3609 } 3610 } 3611 3612 static void 3613 ciss_notify_complete(struct ciss_request *cr) 3614 { 3615 struct ciss_command *cc; 3616 struct ciss_notify *cn; 3617 struct ciss_softc *sc; 3618 int scsi_status; 3619 int command_status; 3620 debug_called(1); 3621 3622 cc = cr->cr_cc; 3623 cn = (struct ciss_notify *)cr->cr_data; 3624 sc = cr->cr_sc; 3625 3626 /* 3627 * Report request results, decode status. 3628 */ 3629 ciss_report_request(cr, &command_status, &scsi_status); 3630 3631 /* 3632 * Abort the chain on a fatal error. 3633 * 3634 * XXX which of these are actually errors? 3635 */ 3636 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3637 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3638 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3639 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3640 ciss_name_command_status(command_status)); 3641 ciss_release_request(cr); 3642 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3643 return; 3644 } 3645 3646 /* 3647 * If the adapter gave us a text message, print it. 3648 */ 3649 if (cn->message[0] != 0) 3650 ciss_printf(sc, "*** %.80s\n", cn->message); 3651 3652 debug(0, "notify event class %d subclass %d detail %d", 3653 cn->class, cn->subclass, cn->detail); 3654 3655 /* 3656 * If the response indicates that the notifier has been aborted, 3657 * release the notifier command. 3658 */ 3659 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3660 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3661 (cn->detail == 1)) { 3662 debug(0, "notifier exiting"); 3663 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3664 ciss_release_request(cr); 3665 sc->ciss_periodic_notify = NULL; 3666 wakeup(&sc->ciss_periodic_notify); 3667 } else { 3668 /* Handle notify events in a kernel thread */ 3669 ciss_enqueue_notify(cr); 3670 sc->ciss_periodic_notify = NULL; 3671 wakeup(&sc->ciss_periodic_notify); 3672 wakeup(&sc->ciss_notify); 3673 } 3674 /* 3675 * Send a new notify event command, if we're not aborting. 3676 */ 3677 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3678 ciss_notify_event(sc); 3679 } 3680 } 3681 3682 /************************************************************************ 3683 * Abort the Notify Event chain. 3684 * 3685 * Note that we can't just abort the command in progress; we have to 3686 * explicitly issue an Abort Notify Event command in order for the 3687 * adapter to clean up correctly. 3688 * 3689 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3690 * the chain will not restart itself. 3691 */ 3692 static int 3693 ciss_notify_abort(struct ciss_softc *sc) 3694 { 3695 struct ciss_request *cr; 3696 struct ciss_command *cc; 3697 struct ciss_notify_cdb *cnc; 3698 int error, command_status, scsi_status; 3699 3700 debug_called(1); 3701 3702 cr = NULL; 3703 error = 0; 3704 3705 /* verify that there's an outstanding command */ 3706 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3707 goto out; 3708 3709 /* get a command to issue the abort with */ 3710 if ((error = ciss_get_request(sc, &cr))) 3711 goto out; 3712 3713 /* get a buffer for the result */ 3714 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3715 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3716 3717 /* build the CDB */ 3718 cc = cr->cr_cc; 3719 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3720 cc->header.address.physical.bus = 0; 3721 cc->header.address.physical.target = 0; 3722 cc->cdb.cdb_length = sizeof(*cnc); 3723 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3724 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3725 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3726 cc->cdb.timeout = 0; /* no timeout, we hope */ 3727 3728 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3729 bzero(cnc, sizeof(*cnc)); 3730 cnc->opcode = CISS_OPCODE_WRITE; 3731 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3732 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3733 3734 ciss_print_request(cr); 3735 3736 /* 3737 * Submit the request and wait for it to complete. 3738 */ 3739 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3740 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3741 goto out; 3742 } 3743 3744 /* 3745 * Check response. 3746 */ 3747 ciss_report_request(cr, &command_status, &scsi_status); 3748 switch(command_status) { 3749 case CISS_CMD_STATUS_SUCCESS: 3750 break; 3751 case CISS_CMD_STATUS_INVALID_COMMAND: 3752 /* 3753 * Some older adapters don't support the CISS version of this 3754 * command. Fall back to using the BMIC version. 3755 */ 3756 error = ciss_notify_abort_bmic(sc); 3757 if (error != 0) 3758 goto out; 3759 break; 3760 3761 case CISS_CMD_STATUS_TARGET_STATUS: 3762 /* 3763 * This can happen if the adapter thinks there wasn't an outstanding 3764 * Notify Event command but we did. We clean up here. 3765 */ 3766 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3767 if (sc->ciss_periodic_notify != NULL) 3768 ciss_release_request(sc->ciss_periodic_notify); 3769 error = 0; 3770 goto out; 3771 } 3772 /* FALLTHROUGH */ 3773 3774 default: 3775 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3776 ciss_name_command_status(command_status)); 3777 error = EIO; 3778 goto out; 3779 } 3780 3781 /* 3782 * Sleep waiting for the notifier command to complete. Note 3783 * that if it doesn't, we may end up in a bad situation, since 3784 * the adapter may deliver it later. Also note that the adapter 3785 * requires the Notify Event command to be cancelled in order to 3786 * maintain internal bookkeeping. 3787 */ 3788 while (sc->ciss_periodic_notify != NULL) { 3789 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5); 3790 if (error == EWOULDBLOCK) { 3791 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3792 break; 3793 } 3794 } 3795 3796 out: 3797 /* release the cancel request */ 3798 if (cr != NULL) { 3799 if (cr->cr_data != NULL) 3800 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3801 ciss_release_request(cr); 3802 } 3803 if (error == 0) 3804 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3805 return(error); 3806 } 3807 3808 /************************************************************************ 3809 * Abort the Notify Event chain using a BMIC command. 3810 */ 3811 static int 3812 ciss_notify_abort_bmic(struct ciss_softc *sc) 3813 { 3814 struct ciss_request *cr; 3815 int error, command_status; 3816 3817 debug_called(1); 3818 3819 cr = NULL; 3820 error = 0; 3821 3822 /* verify that there's an outstanding command */ 3823 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3824 goto out; 3825 3826 /* 3827 * Build a BMIC command to cancel the Notify on Event command. 3828 * 3829 * Note that we are sending a CISS opcode here. Odd. 3830 */ 3831 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3832 NULL, 0)) != 0) 3833 goto out; 3834 3835 /* 3836 * Submit the request and wait for it to complete. 3837 */ 3838 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3839 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3840 goto out; 3841 } 3842 3843 /* 3844 * Check response. 3845 */ 3846 ciss_report_request(cr, &command_status, NULL); 3847 switch(command_status) { 3848 case CISS_CMD_STATUS_SUCCESS: 3849 break; 3850 default: 3851 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3852 ciss_name_command_status(command_status)); 3853 error = EIO; 3854 goto out; 3855 } 3856 3857 out: 3858 if (cr != NULL) 3859 ciss_release_request(cr); 3860 return(error); 3861 } 3862 3863 /************************************************************************ 3864 * Handle rescanning all the logical volumes when a notify event 3865 * causes the drives to come online or offline. 3866 */ 3867 static void 3868 ciss_notify_rescan_logical(struct ciss_softc *sc) 3869 { 3870 struct ciss_lun_report *cll; 3871 struct ciss_ldrive *ld; 3872 int i, j, ndrives; 3873 3874 /* 3875 * We must rescan all logical volumes to get the right logical 3876 * drive address. 3877 */ 3878 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3879 CISS_MAX_LOGICAL); 3880 if (cll == NULL) 3881 return; 3882 3883 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3884 3885 /* 3886 * Delete any of the drives which were destroyed by the 3887 * firmware. 3888 */ 3889 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3890 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3891 ld = &sc->ciss_logical[i][j]; 3892 3893 if (ld->cl_update == 0) 3894 continue; 3895 3896 if (ld->cl_status != CISS_LD_ONLINE) { 3897 ciss_cam_rescan_target(sc, i, j); 3898 ld->cl_update = 0; 3899 if (ld->cl_ldrive) 3900 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3901 if (ld->cl_lstatus) 3902 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3903 3904 ld->cl_ldrive = NULL; 3905 ld->cl_lstatus = NULL; 3906 } 3907 } 3908 } 3909 3910 /* 3911 * Scan for new drives. 3912 */ 3913 for (i = 0; i < ndrives; i++) { 3914 int bus, target; 3915 3916 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3917 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3918 ld = &sc->ciss_logical[bus][target]; 3919 3920 if (ld->cl_update == 0) 3921 continue; 3922 3923 ld->cl_update = 0; 3924 ld->cl_address = cll->lun[i]; 3925 ld->cl_controller = &sc->ciss_controllers[bus]; 3926 if (ciss_identify_logical(sc, ld) == 0) { 3927 ciss_cam_rescan_target(sc, bus, target); 3928 } 3929 } 3930 kfree(cll, CISS_MALLOC_CLASS); 3931 } 3932 3933 /************************************************************************ 3934 * Handle a notify event relating to the status of a logical drive. 3935 * 3936 * XXX need to be able to defer some of these to properly handle 3937 * calling the "ID Physical drive" command, unless the 'extended' 3938 * drive IDs are always in BIG_MAP format. 3939 */ 3940 static void 3941 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3942 { 3943 struct ciss_ldrive *ld; 3944 int ostatus, bus, target; 3945 3946 debug_called(2); 3947 3948 bus = cn->device.physical.bus; 3949 target = cn->data.logical_status.logical_drive; 3950 ld = &sc->ciss_logical[bus][target]; 3951 3952 switch (cn->subclass) { 3953 case CISS_NOTIFY_LOGICAL_STATUS: 3954 switch (cn->detail) { 3955 case 0: 3956 ciss_name_device(sc, bus, target); 3957 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3958 cn->data.logical_status.logical_drive, ld->cl_name, 3959 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3960 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3961 cn->data.logical_status.spare_state, 3962 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3963 3964 /* 3965 * Update our idea of the drive's status. 3966 */ 3967 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3968 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3969 if (ld->cl_lstatus != NULL) 3970 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3971 3972 /* 3973 * Have CAM rescan the drive if its status has changed. 3974 */ 3975 if (ostatus != ld->cl_status) { 3976 ld->cl_update = 1; 3977 ciss_notify_rescan_logical(sc); 3978 } 3979 3980 break; 3981 3982 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3983 ciss_name_device(sc, bus, target); 3984 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3985 cn->data.logical_status.logical_drive, ld->cl_name); 3986 ciss_accept_media(sc, ld); 3987 3988 ld->cl_update = 1; 3989 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3990 ciss_notify_rescan_logical(sc); 3991 break; 3992 3993 case 2: 3994 case 3: 3995 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3996 cn->data.rebuild_aborted.logical_drive, 3997 ld->cl_name, 3998 (cn->detail == 2) ? "read" : "write"); 3999 break; 4000 } 4001 break; 4002 4003 case CISS_NOTIFY_LOGICAL_ERROR: 4004 if (cn->detail == 0) { 4005 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4006 cn->data.io_error.logical_drive, 4007 ld->cl_name, 4008 cn->data.io_error.failure_bus, 4009 cn->data.io_error.failure_drive); 4010 /* XXX should we take the drive down at this point, or will we be told? */ 4011 } 4012 break; 4013 4014 case CISS_NOTIFY_LOGICAL_SURFACE: 4015 if (cn->detail == 0) 4016 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4017 cn->data.consistency_completed.logical_drive, 4018 ld->cl_name); 4019 break; 4020 } 4021 } 4022 4023 /************************************************************************ 4024 * Handle a notify event relating to the status of a physical drive. 4025 */ 4026 static void 4027 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4028 { 4029 } 4030 4031 /************************************************************************ 4032 * Handle a notify event relating to the status of a physical drive. 4033 */ 4034 static void 4035 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4036 { 4037 struct ciss_lun_report *cll = NULL; 4038 int bus, target; 4039 4040 switch (cn->subclass) { 4041 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4042 case CISS_NOTIFY_HOTPLUG_NONDISK: 4043 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4044 target = 4045 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4046 4047 if (cn->detail == 0) { 4048 /* 4049 * Mark the device offline so that it'll start producing selection 4050 * timeouts to the upper layer. 4051 */ 4052 if ((bus >= 0) && (target >= 0)) 4053 sc->ciss_physical[bus][target].cp_online = 0; 4054 } else { 4055 /* 4056 * Rescan the physical lun list for new items 4057 */ 4058 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4059 CISS_MAX_PHYSICAL); 4060 if (cll == NULL) { 4061 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4062 break; 4063 } 4064 ciss_filter_physical(sc, cll); 4065 } 4066 break; 4067 4068 default: 4069 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4070 return; 4071 } 4072 4073 if (cll != NULL) 4074 kfree(cll, CISS_MALLOC_CLASS); 4075 } 4076 4077 /************************************************************************ 4078 * Handle deferred processing of notify events. Notify events may need 4079 * sleep which is unsafe during an interrupt. 4080 */ 4081 static void 4082 ciss_notify_thread(void *arg) 4083 { 4084 struct ciss_softc *sc; 4085 struct ciss_request *cr; 4086 struct ciss_notify *cn; 4087 4088 sc = (struct ciss_softc *)arg; 4089 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4090 4091 for (;;) { 4092 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4093 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4094 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0); 4095 } 4096 4097 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4098 break; 4099 4100 cr = ciss_dequeue_notify(sc); 4101 4102 if (cr == NULL) 4103 panic("cr null"); 4104 cn = (struct ciss_notify *)cr->cr_data; 4105 4106 switch (cn->class) { 4107 case CISS_NOTIFY_HOTPLUG: 4108 ciss_notify_hotplug(sc, cn); 4109 break; 4110 case CISS_NOTIFY_LOGICAL: 4111 ciss_notify_logical(sc, cn); 4112 break; 4113 case CISS_NOTIFY_PHYSICAL: 4114 ciss_notify_physical(sc, cn); 4115 break; 4116 } 4117 4118 ciss_release_request(cr); 4119 4120 } 4121 sc->ciss_notify_thread = NULL; 4122 wakeup(&sc->ciss_notify_thread); 4123 4124 lockmgr(&sc->ciss_lock, LK_RELEASE); 4125 kthread_exit(); 4126 } 4127 4128 /************************************************************************ 4129 * Start the notification kernel thread. 4130 */ 4131 static void 4132 ciss_spawn_notify_thread(struct ciss_softc *sc) 4133 { 4134 4135 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 4136 &sc->ciss_notify_thread, "ciss_notify%d", 4137 device_get_unit(sc->ciss_dev))) 4138 panic("Could not create notify thread\n"); 4139 } 4140 4141 /************************************************************************ 4142 * Kill the notification kernel thread. 4143 */ 4144 static void 4145 ciss_kill_notify_thread(struct ciss_softc *sc) 4146 { 4147 4148 if (sc->ciss_notify_thread == NULL) 4149 return; 4150 4151 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4152 wakeup(&sc->ciss_notify); 4153 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0); 4154 } 4155 4156 /************************************************************************ 4157 * Print a request. 4158 */ 4159 static void 4160 ciss_print_request(struct ciss_request *cr) 4161 { 4162 struct ciss_softc *sc; 4163 struct ciss_command *cc; 4164 int i; 4165 4166 sc = cr->cr_sc; 4167 cc = cr->cr_cc; 4168 4169 ciss_printf(sc, "REQUEST @ %p\n", cr); 4170 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4171 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4172 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4173 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4174 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4175 switch(cc->header.address.mode.mode) { 4176 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4177 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4178 ciss_printf(sc, " physical bus %d target %d\n", 4179 cc->header.address.physical.bus, cc->header.address.physical.target); 4180 break; 4181 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4182 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4183 break; 4184 } 4185 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4186 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4187 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4188 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4189 cc->cdb.cdb_length, 4190 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4191 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4192 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4193 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4194 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4195 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4196 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4197 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4198 4199 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4200 /* XXX print error info */ 4201 } else { 4202 /* since we don't use chained s/g, don't support it here */ 4203 for (i = 0; i < cc->header.sg_in_list; i++) { 4204 if ((i % 4) == 0) 4205 ciss_printf(sc, " "); 4206 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4207 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4208 kprintf("\n"); 4209 } 4210 } 4211 } 4212 4213 /************************************************************************ 4214 * Print information about the status of a logical drive. 4215 */ 4216 static void 4217 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4218 { 4219 int bus, target, i; 4220 4221 if (ld->cl_lstatus == NULL) { 4222 kprintf("does not exist\n"); 4223 return; 4224 } 4225 4226 /* print drive status */ 4227 switch(ld->cl_lstatus->status) { 4228 case CISS_LSTATUS_OK: 4229 kprintf("online\n"); 4230 break; 4231 case CISS_LSTATUS_INTERIM_RECOVERY: 4232 kprintf("in interim recovery mode\n"); 4233 break; 4234 case CISS_LSTATUS_READY_RECOVERY: 4235 kprintf("ready to begin recovery\n"); 4236 break; 4237 case CISS_LSTATUS_RECOVERING: 4238 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4239 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4240 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4241 bus, target, ld->cl_lstatus->blocks_to_recover); 4242 break; 4243 case CISS_LSTATUS_EXPANDING: 4244 kprintf("being expanded, %u blocks remaining\n", 4245 ld->cl_lstatus->blocks_to_recover); 4246 break; 4247 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4248 kprintf("queued for expansion\n"); 4249 break; 4250 case CISS_LSTATUS_FAILED: 4251 kprintf("queued for expansion\n"); 4252 break; 4253 case CISS_LSTATUS_WRONG_PDRIVE: 4254 kprintf("wrong physical drive inserted\n"); 4255 break; 4256 case CISS_LSTATUS_MISSING_PDRIVE: 4257 kprintf("missing a needed physical drive\n"); 4258 break; 4259 case CISS_LSTATUS_BECOMING_READY: 4260 kprintf("becoming ready\n"); 4261 break; 4262 } 4263 4264 /* print failed physical drives */ 4265 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4266 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4267 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4268 if (bus == -1) 4269 continue; 4270 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4271 ld->cl_lstatus->drive_failure_map[i]); 4272 } 4273 } 4274 4275 #ifdef CISS_DEBUG 4276 /************************************************************************ 4277 * Print information about the controller/driver. 4278 */ 4279 static void 4280 ciss_print_adapter(struct ciss_softc *sc) 4281 { 4282 int i, j; 4283 4284 ciss_printf(sc, "ADAPTER:\n"); 4285 for (i = 0; i < CISSQ_COUNT; i++) { 4286 ciss_printf(sc, "%s %d/%d\n", 4287 i == 0 ? "free" : 4288 i == 1 ? "busy" : "complete", 4289 sc->ciss_qstat[i].q_length, 4290 sc->ciss_qstat[i].q_max); 4291 } 4292 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4293 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4294 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4295 4296 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4297 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4298 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4299 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4300 } 4301 } 4302 4303 /* XXX Should physical drives be printed out here? */ 4304 4305 for (i = 1; i < sc->ciss_max_requests; i++) 4306 ciss_print_request(sc->ciss_request + i); 4307 } 4308 4309 /* DDB hook */ 4310 static void 4311 ciss_print0(void) 4312 { 4313 struct ciss_softc *sc; 4314 4315 sc = devclass_get_softc(devclass_find("ciss"), 0); 4316 if (sc == NULL) { 4317 kprintf("no ciss controllers\n"); 4318 } else { 4319 ciss_print_adapter(sc); 4320 } 4321 } 4322 #endif 4323 4324 /************************************************************************ 4325 * Return a name for a logical drive status value. 4326 */ 4327 static const char * 4328 ciss_name_ldrive_status(int status) 4329 { 4330 switch (status) { 4331 case CISS_LSTATUS_OK: 4332 return("OK"); 4333 case CISS_LSTATUS_FAILED: 4334 return("failed"); 4335 case CISS_LSTATUS_NOT_CONFIGURED: 4336 return("not configured"); 4337 case CISS_LSTATUS_INTERIM_RECOVERY: 4338 return("interim recovery"); 4339 case CISS_LSTATUS_READY_RECOVERY: 4340 return("ready for recovery"); 4341 case CISS_LSTATUS_RECOVERING: 4342 return("recovering"); 4343 case CISS_LSTATUS_WRONG_PDRIVE: 4344 return("wrong physical drive inserted"); 4345 case CISS_LSTATUS_MISSING_PDRIVE: 4346 return("missing physical drive"); 4347 case CISS_LSTATUS_EXPANDING: 4348 return("expanding"); 4349 case CISS_LSTATUS_BECOMING_READY: 4350 return("becoming ready"); 4351 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4352 return("queued for expansion"); 4353 } 4354 return("unknown status"); 4355 } 4356 4357 /************************************************************************ 4358 * Return an online/offline/nonexistent value for a logical drive 4359 * status value. 4360 */ 4361 static int 4362 ciss_decode_ldrive_status(int status) 4363 { 4364 switch(status) { 4365 case CISS_LSTATUS_NOT_CONFIGURED: 4366 return(CISS_LD_NONEXISTENT); 4367 4368 case CISS_LSTATUS_OK: 4369 case CISS_LSTATUS_INTERIM_RECOVERY: 4370 case CISS_LSTATUS_READY_RECOVERY: 4371 case CISS_LSTATUS_RECOVERING: 4372 case CISS_LSTATUS_EXPANDING: 4373 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4374 return(CISS_LD_ONLINE); 4375 4376 case CISS_LSTATUS_FAILED: 4377 case CISS_LSTATUS_WRONG_PDRIVE: 4378 case CISS_LSTATUS_MISSING_PDRIVE: 4379 case CISS_LSTATUS_BECOMING_READY: 4380 default: 4381 return(CISS_LD_OFFLINE); 4382 } 4383 } 4384 4385 4386 /************************************************************************ 4387 * Return a name for a logical drive's organisation. 4388 */ 4389 static const char * 4390 ciss_name_ldrive_org(int org) 4391 { 4392 switch(org) { 4393 case CISS_LDRIVE_RAID0: 4394 return("RAID 0"); 4395 case CISS_LDRIVE_RAID1: 4396 return("RAID 1(1+0)"); 4397 case CISS_LDRIVE_RAID4: 4398 return("RAID 4"); 4399 case CISS_LDRIVE_RAID5: 4400 return("RAID 5"); 4401 case CISS_LDRIVE_RAID51: 4402 return("RAID 5+1"); 4403 case CISS_LDRIVE_RAIDADG: 4404 return("RAID ADG"); 4405 } 4406 return("unknown"); 4407 } 4408 4409 /************************************************************************ 4410 * Return a name for a command status value. 4411 */ 4412 static const char * 4413 ciss_name_command_status(int status) 4414 { 4415 switch(status) { 4416 case CISS_CMD_STATUS_SUCCESS: 4417 return("success"); 4418 case CISS_CMD_STATUS_TARGET_STATUS: 4419 return("target status"); 4420 case CISS_CMD_STATUS_DATA_UNDERRUN: 4421 return("data underrun"); 4422 case CISS_CMD_STATUS_DATA_OVERRUN: 4423 return("data overrun"); 4424 case CISS_CMD_STATUS_INVALID_COMMAND: 4425 return("invalid command"); 4426 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4427 return("protocol error"); 4428 case CISS_CMD_STATUS_HARDWARE_ERROR: 4429 return("hardware error"); 4430 case CISS_CMD_STATUS_CONNECTION_LOST: 4431 return("connection lost"); 4432 case CISS_CMD_STATUS_ABORTED: 4433 return("aborted"); 4434 case CISS_CMD_STATUS_ABORT_FAILED: 4435 return("abort failed"); 4436 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4437 return("unsolicited abort"); 4438 case CISS_CMD_STATUS_TIMEOUT: 4439 return("timeout"); 4440 case CISS_CMD_STATUS_UNABORTABLE: 4441 return("unabortable"); 4442 } 4443 return("unknown status"); 4444 } 4445 4446 /************************************************************************ 4447 * Handle an open on the control device. 4448 */ 4449 static int 4450 ciss_open(struct dev_open_args *ap) 4451 { 4452 cdev_t dev = ap->a_head.a_dev; 4453 struct ciss_softc *sc; 4454 4455 debug_called(1); 4456 4457 sc = (struct ciss_softc *)dev->si_drv1; 4458 4459 /* we might want to veto if someone already has us open */ 4460 4461 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4462 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4463 lockmgr(&sc->ciss_lock, LK_RELEASE); 4464 return(0); 4465 } 4466 4467 /************************************************************************ 4468 * Handle the last close on the control device. 4469 */ 4470 static int 4471 ciss_close(struct dev_close_args *ap) 4472 { 4473 cdev_t dev = ap->a_head.a_dev; 4474 struct ciss_softc *sc; 4475 4476 debug_called(1); 4477 4478 sc = (struct ciss_softc *)dev->si_drv1; 4479 4480 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4481 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4482 lockmgr(&sc->ciss_lock, LK_RELEASE); 4483 return (0); 4484 } 4485 4486 /******************************************************************************** 4487 * Handle adapter-specific control operations. 4488 * 4489 * Note that the API here is compatible with the Linux driver, in order to 4490 * simplify the porting of Compaq's userland tools. 4491 */ 4492 static int 4493 ciss_ioctl(struct dev_ioctl_args *ap) 4494 { 4495 caddr_t addr = ap->a_data; 4496 cdev_t dev = ap->a_head.a_dev; 4497 u_long cmd = ap->a_cmd; 4498 struct ciss_softc *sc; 4499 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4500 #ifdef __amd64__ 4501 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4502 IOCTL_Command_struct ioc_swab; 4503 #endif 4504 int error; 4505 4506 debug_called(1); 4507 4508 sc = (struct ciss_softc *)dev->si_drv1; 4509 error = 0; 4510 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4511 4512 switch(cmd) { 4513 case CCISS_GETQSTATS: 4514 { 4515 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4516 4517 switch (cr->cs_item) { 4518 case CISSQ_FREE: 4519 case CISSQ_NOTIFY: 4520 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4521 sizeof(struct ciss_qstat)); 4522 break; 4523 default: 4524 error = ENOIOCTL; 4525 break; 4526 } 4527 4528 break; 4529 } 4530 4531 case CCISS_GETPCIINFO: 4532 { 4533 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4534 4535 pis->bus = pci_get_bus(sc->ciss_dev); 4536 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4537 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4538 pci_get_subdevice(sc->ciss_dev); 4539 4540 break; 4541 } 4542 4543 case CCISS_GETINTINFO: 4544 { 4545 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4546 4547 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4548 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4549 4550 break; 4551 } 4552 4553 case CCISS_SETINTINFO: 4554 { 4555 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4556 4557 if ((cis->delay == 0) && (cis->count == 0)) { 4558 error = EINVAL; 4559 break; 4560 } 4561 4562 /* 4563 * XXX apparently this is only safe if the controller is idle, 4564 * we should suspend it before doing this. 4565 */ 4566 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4567 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4568 4569 if (ciss_update_config(sc)) 4570 error = EIO; 4571 4572 /* XXX resume the controller here */ 4573 break; 4574 } 4575 4576 case CCISS_GETNODENAME: 4577 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4578 sizeof(NodeName_type)); 4579 break; 4580 4581 case CCISS_SETNODENAME: 4582 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4583 sizeof(NodeName_type)); 4584 if (ciss_update_config(sc)) 4585 error = EIO; 4586 break; 4587 4588 case CCISS_GETHEARTBEAT: 4589 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4590 break; 4591 4592 case CCISS_GETBUSTYPES: 4593 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4594 break; 4595 4596 case CCISS_GETFIRMVER: 4597 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4598 sizeof(FirmwareVer_type)); 4599 break; 4600 4601 case CCISS_GETDRIVERVER: 4602 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4603 break; 4604 4605 case CCISS_REVALIDVOLS: 4606 /* 4607 * This is a bit ugly; to do it "right" we really need 4608 * to find any disks that have changed, kick CAM off them, 4609 * then rescan only these disks. It'd be nice if they 4610 * a) told us which disk(s) they were going to play with, 4611 * and b) which ones had arrived. 8( 4612 */ 4613 break; 4614 4615 #ifdef __amd64__ 4616 case CCISS_PASSTHRU32: 4617 ioc_swab.LUN_info = ioc32->LUN_info; 4618 ioc_swab.Request = ioc32->Request; 4619 ioc_swab.error_info = ioc32->error_info; 4620 ioc_swab.buf_size = ioc32->buf_size; 4621 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4622 ioc = &ioc_swab; 4623 /* FALLTHROUGH */ 4624 #endif 4625 4626 case CCISS_PASSTHRU: 4627 error = ciss_user_command(sc, ioc); 4628 break; 4629 4630 default: 4631 debug(0, "unknown ioctl 0x%lx", cmd); 4632 4633 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4634 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4635 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4636 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4637 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4638 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4639 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4640 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4641 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4642 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4643 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4644 4645 error = ENOIOCTL; 4646 break; 4647 } 4648 4649 lockmgr(&sc->ciss_lock, LK_RELEASE); 4650 return(error); 4651 } 4652