1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/ciss/ciss.c,v 1.113 2012/03/12 08:03:51 scottl Exp $ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 #include <sys/device.h> 88 89 #include <bus/cam/cam.h> 90 #include <bus/cam/cam_ccb.h> 91 #include <bus/cam/cam_periph.h> 92 #include <bus/cam/cam_sim.h> 93 #include <bus/cam/cam_xpt_sim.h> 94 #include <bus/cam/scsi/scsi_all.h> 95 #include <bus/cam/scsi/scsi_message.h> 96 97 #include <machine/endian.h> 98 #include <sys/rman.h> 99 100 #include <bus/pci/pcireg.h> 101 #include <bus/pci/pcivar.h> 102 103 #include <dev/raid/ciss/cissreg.h> 104 #include <dev/raid/ciss/cissio.h> 105 #include <dev/raid/ciss/cissvar.h> 106 107 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 108 "ciss internal data buffers"); 109 110 /* pci interface */ 111 static int ciss_lookup(device_t dev); 112 static int ciss_probe(device_t dev); 113 static int ciss_attach(device_t dev); 114 static int ciss_detach(device_t dev); 115 static int ciss_shutdown(device_t dev); 116 117 /* (de)initialisation functions, control wrappers */ 118 static int ciss_init_pci(struct ciss_softc *sc); 119 static int ciss_setup_msix(struct ciss_softc *sc); 120 static int ciss_init_perf(struct ciss_softc *sc); 121 static int ciss_wait_adapter(struct ciss_softc *sc); 122 static int ciss_flush_adapter(struct ciss_softc *sc); 123 static int ciss_init_requests(struct ciss_softc *sc); 124 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 125 int nseg, int error); 126 static int ciss_identify_adapter(struct ciss_softc *sc); 127 static int ciss_init_logical(struct ciss_softc *sc); 128 static int ciss_init_physical(struct ciss_softc *sc); 129 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 130 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 131 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_update_config(struct ciss_softc *sc); 133 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static void ciss_init_sysctl(struct ciss_softc *sc); 135 static void ciss_soft_reset(struct ciss_softc *sc); 136 static void ciss_free(struct ciss_softc *sc); 137 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 138 static void ciss_kill_notify_thread(struct ciss_softc *sc); 139 140 /* request submission/completion */ 141 static int ciss_start(struct ciss_request *cr); 142 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 143 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_intr(void *arg); 145 static void ciss_perf_intr(void *arg); 146 static void ciss_perf_msi_intr(void *arg); 147 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 148 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 149 static int ciss_synch_request(struct ciss_request *cr, int timeout); 150 static int ciss_poll_request(struct ciss_request *cr, int timeout); 151 static int ciss_wait_request(struct ciss_request *cr, int timeout); 152 #if 0 153 static int ciss_abort_request(struct ciss_request *cr); 154 #endif 155 156 /* request queueing */ 157 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 158 static void ciss_preen_command(struct ciss_request *cr); 159 static void ciss_release_request(struct ciss_request *cr); 160 161 /* request helpers */ 162 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 163 int opcode, void **bufp, size_t bufsize); 164 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 165 166 /* DMA map/unmap */ 167 static int ciss_map_request(struct ciss_request *cr); 168 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 169 int nseg, int error); 170 static void ciss_unmap_request(struct ciss_request *cr); 171 172 /* CAM interface */ 173 static int ciss_cam_init(struct ciss_softc *sc); 174 static void ciss_cam_rescan_target(struct ciss_softc *sc, 175 int bus, int target); 176 static void ciss_cam_rescan_all(struct ciss_softc *sc); 177 static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb); 178 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 179 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 180 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 181 static void ciss_cam_poll(struct cam_sim *sim); 182 static void ciss_cam_complete(struct ciss_request *cr); 183 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, 185 int bus, int target); 186 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 187 188 /* periodic status monitoring */ 189 static void ciss_periodic(void *arg); 190 static void ciss_nop_complete(struct ciss_request *cr); 191 static void ciss_disable_adapter(struct ciss_softc *sc); 192 static void ciss_notify_event(struct ciss_softc *sc); 193 static void ciss_notify_complete(struct ciss_request *cr); 194 static int ciss_notify_abort(struct ciss_softc *sc); 195 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 196 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 199 200 /* debugging output */ 201 static void ciss_print_request(struct ciss_request *cr); 202 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 203 static const char *ciss_name_ldrive_status(int status); 204 static int ciss_decode_ldrive_status(int status); 205 static const char *ciss_name_ldrive_org(int org); 206 static const char *ciss_name_command_status(int status); 207 208 /* 209 * PCI bus interface. 210 */ 211 static device_method_t ciss_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, ciss_probe), 214 DEVMETHOD(device_attach, ciss_attach), 215 DEVMETHOD(device_detach, ciss_detach), 216 DEVMETHOD(device_shutdown, ciss_shutdown), 217 DEVMETHOD_END 218 }; 219 220 static driver_t ciss_pci_driver = { 221 "ciss", 222 ciss_methods, 223 sizeof(struct ciss_softc) 224 }; 225 226 static devclass_t ciss_devclass; 227 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, NULL, NULL); 228 MODULE_VERSION(ciss, 1); 229 MODULE_DEPEND(ciss, cam, 1, 1, 1); 230 MODULE_DEPEND(ciss, pci, 1, 1, 1); 231 232 /* 233 * Control device interface. 234 */ 235 static d_open_t ciss_open; 236 static d_close_t ciss_close; 237 static d_ioctl_t ciss_ioctl; 238 239 static struct dev_ops ciss_ops = { 240 { "ciss", 0, D_MPSAFE }, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 286 static struct 287 { 288 u_int16_t subvendor; 289 u_int16_t subdevice; 290 int flags; 291 char *desc; 292 } ciss_vendor_data[] = { 293 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI, "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 339 { 0, 0, 0, NULL } 340 }; 341 342 /************************************************************************ 343 * Find a match for the device in our list of known adapters. 344 */ 345 static int 346 ciss_lookup(device_t dev) 347 { 348 int i; 349 350 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 351 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 352 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 353 return(i); 354 } 355 return(-1); 356 } 357 358 /************************************************************************ 359 * Match a known CISS adapter. 360 */ 361 static int 362 ciss_probe(device_t dev) 363 { 364 int i; 365 366 i = ciss_lookup(dev); 367 if (i != -1) { 368 device_set_desc(dev, ciss_vendor_data[i].desc); 369 return(BUS_PROBE_DEFAULT); 370 } 371 return(ENOENT); 372 } 373 374 /************************************************************************ 375 * Attach the driver to this adapter. 376 */ 377 static int 378 ciss_attach(device_t dev) 379 { 380 struct ciss_softc *sc; 381 int error; 382 383 debug_called(1); 384 385 #ifdef CISS_DEBUG 386 /* print structure/union sizes */ 387 debug_struct(ciss_command); 388 debug_struct(ciss_header); 389 debug_union(ciss_device_address); 390 debug_struct(ciss_cdb); 391 debug_struct(ciss_report_cdb); 392 debug_struct(ciss_notify_cdb); 393 debug_struct(ciss_notify); 394 debug_struct(ciss_message_cdb); 395 debug_struct(ciss_error_info_pointer); 396 debug_struct(ciss_error_info); 397 debug_struct(ciss_sg_entry); 398 debug_struct(ciss_config_table); 399 debug_struct(ciss_bmic_cdb); 400 debug_struct(ciss_bmic_id_ldrive); 401 debug_struct(ciss_bmic_id_lstatus); 402 debug_struct(ciss_bmic_id_table); 403 debug_struct(ciss_bmic_id_pdrive); 404 debug_struct(ciss_bmic_blink_pdrive); 405 debug_struct(ciss_bmic_flush_cache); 406 debug_const(CISS_MAX_REQUESTS); 407 debug_const(CISS_MAX_LOGICAL); 408 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 409 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 410 debug_const(CISS_COMMAND_ALLOC_SIZE); 411 debug_const(CISS_COMMAND_SG_LENGTH); 412 413 debug_type(cciss_pci_info_struct); 414 debug_type(cciss_coalint_struct); 415 debug_type(cciss_coalint_struct); 416 debug_type(NodeName_type); 417 debug_type(NodeName_type); 418 debug_type(Heartbeat_type); 419 debug_type(BusTypes_type); 420 debug_type(FirmwareVer_type); 421 debug_type(DriverVer_type); 422 debug_type(IOCTL_Command_struct); 423 #endif 424 425 sc = device_get_softc(dev); 426 sc->ciss_dev = dev; 427 lockinit(&sc->ciss_lock, "cissmtx", 0, LK_CANRECURSE); 428 callout_init_mp(&sc->ciss_periodic); 429 430 /* 431 * Do PCI-specific init. 432 */ 433 if ((error = ciss_init_pci(sc)) != 0) 434 goto out; 435 436 /* 437 * Initialise driver queues. 438 */ 439 ciss_initq_free(sc); 440 ciss_initq_notify(sc); 441 442 /* 443 * Initalize device sysctls. 444 */ 445 ciss_init_sysctl(sc); 446 447 /* 448 * Initialise command/request pool. 449 */ 450 if ((error = ciss_init_requests(sc)) != 0) 451 goto out; 452 453 /* 454 * Get adapter information. 455 */ 456 if ((error = ciss_identify_adapter(sc)) != 0) 457 goto out; 458 459 /* 460 * Find all the physical devices. 461 */ 462 if ((error = ciss_init_physical(sc)) != 0) 463 goto out; 464 465 /* 466 * Build our private table of logical devices. 467 */ 468 if ((error = ciss_init_logical(sc)) != 0) 469 goto out; 470 471 /* 472 * Enable interrupts so that the CAM scan can complete. 473 */ 474 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 475 476 /* 477 * Initialise the CAM interface. 478 */ 479 if ((error = ciss_cam_init(sc)) != 0) 480 goto out; 481 482 /* 483 * Start the heartbeat routine and event chain. 484 */ 485 ciss_periodic(sc); 486 487 /* 488 * Create the control device. 489 */ 490 sc->ciss_dev_t = make_dev(&ciss_ops, device_get_unit(sc->ciss_dev), 491 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 492 "ciss%d", device_get_unit(sc->ciss_dev)); 493 sc->ciss_dev_t->si_drv1 = sc; 494 495 /* 496 * The adapter is running; synchronous commands can now sleep 497 * waiting for an interrupt to signal completion. 498 */ 499 sc->ciss_flags |= CISS_FLAG_RUNNING; 500 501 ciss_spawn_notify_thread(sc); 502 503 error = 0; 504 out: 505 if (error != 0) { 506 /* ciss_free() expects the mutex to be held */ 507 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 508 ciss_free(sc); 509 } 510 return(error); 511 } 512 513 /************************************************************************ 514 * Detach the driver from this adapter. 515 */ 516 static int 517 ciss_detach(device_t dev) 518 { 519 struct ciss_softc *sc = device_get_softc(dev); 520 521 debug_called(1); 522 523 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 524 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 525 lockmgr(&sc->ciss_lock, LK_RELEASE); 526 return (EBUSY); 527 } 528 529 /* flush adapter cache */ 530 ciss_flush_adapter(sc); 531 532 /* release all resources. The mutex is released and freed here too. */ 533 ciss_free(sc); 534 535 return(0); 536 } 537 538 /************************************************************************ 539 * Prepare adapter for system shutdown. 540 */ 541 static int 542 ciss_shutdown(device_t dev) 543 { 544 struct ciss_softc *sc = device_get_softc(dev); 545 546 debug_called(1); 547 548 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 549 /* flush adapter cache */ 550 ciss_flush_adapter(sc); 551 552 if (sc->ciss_soft_reset) 553 ciss_soft_reset(sc); 554 lockmgr(&sc->ciss_lock, LK_RELEASE); 555 556 return(0); 557 } 558 559 static void 560 ciss_init_sysctl(struct ciss_softc *sc) 561 { 562 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 563 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 564 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 565 } 566 567 /************************************************************************ 568 * Perform PCI-specific attachment actions. 569 */ 570 static int 571 ciss_init_pci(struct ciss_softc *sc) 572 { 573 uintptr_t cbase, csize, cofs; 574 uint32_t method, supported_methods; 575 int error, sqmask, i; 576 void *intr; 577 int use_msi; 578 u_int irq_flags; 579 580 debug_called(1); 581 582 /* 583 * Work out adapter type. 584 */ 585 i = ciss_lookup(sc->ciss_dev); 586 if (i < 0) { 587 ciss_printf(sc, "unknown adapter type\n"); 588 return (ENXIO); 589 } 590 591 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 592 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 593 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 594 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 595 } else { 596 /* 597 * XXX Big hammer, masks/unmasks all possible interrupts. This should 598 * work on all hardware variants. Need to add code to handle the 599 * "controller crashed" interupt bit that this unmasks. 600 */ 601 sqmask = ~0; 602 } 603 604 /* 605 * Allocate register window first (we need this to find the config 606 * struct). 607 */ 608 error = ENXIO; 609 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 610 if ((sc->ciss_regs_resource = 611 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 612 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 613 ciss_printf(sc, "can't allocate register window\n"); 614 return(ENXIO); 615 } 616 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 617 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 618 619 /* 620 * Find the BAR holding the config structure. If it's not the one 621 * we already mapped for registers, map it too. 622 */ 623 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 624 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 625 if ((sc->ciss_cfg_resource = 626 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 627 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 628 ciss_printf(sc, "can't allocate config window\n"); 629 return(ENXIO); 630 } 631 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 632 csize = rman_get_end(sc->ciss_cfg_resource) - 633 rman_get_start(sc->ciss_cfg_resource) + 1; 634 } else { 635 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 636 csize = rman_get_end(sc->ciss_regs_resource) - 637 rman_get_start(sc->ciss_regs_resource) + 1; 638 } 639 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 640 641 /* 642 * Use the base/size/offset values we just calculated to 643 * sanity-check the config structure. If it's OK, point to it. 644 */ 645 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 646 ciss_printf(sc, "config table outside window\n"); 647 return(ENXIO); 648 } 649 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 650 debug(1, "config struct at %p", sc->ciss_cfg); 651 652 /* 653 * Calculate the number of request structures/commands we are 654 * going to provide for this adapter. 655 */ 656 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 657 658 /* 659 * Validate the config structure. If we supported other transport 660 * methods, we could select amongst them at this point in time. 661 */ 662 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 663 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 664 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 665 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 666 return(ENXIO); 667 } 668 669 /* 670 * Select the mode of operation, prefer Performant. 671 */ 672 if (!(sc->ciss_cfg->supported_methods & 673 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 674 ciss_printf(sc, "No supported transport layers: 0x%x\n", 675 sc->ciss_cfg->supported_methods); 676 } 677 678 switch (ciss_force_transport) { 679 case 1: 680 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 681 break; 682 case 2: 683 supported_methods = CISS_TRANSPORT_METHOD_PERF; 684 break; 685 default: 686 supported_methods = sc->ciss_cfg->supported_methods; 687 break; 688 } 689 690 setup: 691 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 692 method = CISS_TRANSPORT_METHOD_PERF; 693 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 694 sc->ciss_cfg->transport_offset); 695 if (ciss_init_perf(sc)) { 696 supported_methods &= ~method; 697 goto setup; 698 } 699 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 700 method = CISS_TRANSPORT_METHOD_SIMPLE; 701 } else { 702 ciss_printf(sc, "No supported transport methods: 0x%x\n", 703 sc->ciss_cfg->supported_methods); 704 return(ENXIO); 705 } 706 707 /* 708 * Tell it we're using the low 4GB of RAM. Set the default interrupt 709 * coalescing options. 710 */ 711 sc->ciss_cfg->requested_method = method; 712 sc->ciss_cfg->command_physlimit = 0; 713 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 714 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 715 716 if (ciss_update_config(sc)) { 717 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 718 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 719 return(ENXIO); 720 } 721 if ((sc->ciss_cfg->active_method & method) == 0) { 722 supported_methods &= ~method; 723 if (supported_methods == 0) { 724 ciss_printf(sc, "adapter refuses to go into available transports " 725 "mode (0x%x, 0x%x)\n", supported_methods, 726 sc->ciss_cfg->active_method); 727 return(ENXIO); 728 } else 729 goto setup; 730 } 731 732 /* 733 * Wait for the adapter to come ready. 734 */ 735 if ((error = ciss_wait_adapter(sc)) != 0) 736 return(error); 737 738 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 739 * interrupts have a rid of 0, this will be overridden if MSIX is used. 740 */ 741 sc->ciss_irq_rid[0] = 0; 742 if (method == CISS_TRANSPORT_METHOD_PERF) { 743 ciss_printf(sc, "PERFORMANT Transport\n"); 744 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 745 intr = ciss_perf_msi_intr; 746 } else { 747 intr = ciss_perf_intr; 748 } 749 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 750 * Unfortunately, there is no good way to know if this is a SAS 751 * controller. Hopefully enabling this bit universally will work OK. 752 * It seems to work fine for SA6i controllers. 753 */ 754 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 755 756 } else { 757 ciss_printf(sc, "SIMPLE Transport\n"); 758 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 759 if (ciss_force_interrupt == 2) 760 /* If this fails, we automatically revert to INTx */ 761 ciss_setup_msix(sc); 762 sc->ciss_perf = NULL; 763 intr = ciss_intr; 764 sc->ciss_interrupt_mask = sqmask; 765 } 766 /* 767 * Turn off interrupts before we go routing anything. 768 */ 769 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 770 771 /* 772 * Allocate and set up our interrupt. 773 */ 774 #ifdef __DragonFly__ /* DragonFly specific MSI setup */ 775 use_msi = (intr == ciss_perf_msi_intr); 776 #endif 777 sc->ciss_irq_rid[0] = 0; 778 sc->ciss_irq_type = pci_alloc_1intr(sc->ciss_dev, use_msi, 779 &sc->ciss_irq_rid[0], &irq_flags); 780 if ((sc->ciss_irq_resource = 781 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 782 irq_flags)) == NULL) { 783 ciss_printf(sc, "can't allocate interrupt\n"); 784 return(ENXIO); 785 } 786 787 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 788 INTR_MPSAFE, intr, sc, 789 &sc->ciss_intr, NULL)) { 790 ciss_printf(sc, "can't set up interrupt\n"); 791 return(ENXIO); 792 } 793 794 /* 795 * Allocate the parent bus DMA tag appropriate for our PCI 796 * interface. 797 * 798 * Note that "simple" adapters can only address within a 32-bit 799 * span. 800 */ 801 if (bus_dma_tag_create(NULL, /* PCI parent */ 802 1, 0, /* alignment, boundary */ 803 BUS_SPACE_MAXADDR, /* lowaddr */ 804 BUS_SPACE_MAXADDR, /* highaddr */ 805 NULL, NULL, /* filter, filterarg */ 806 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 807 CISS_MAX_SG_ELEMENTS, /* nsegments */ 808 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 809 0, /* flags */ 810 &sc->ciss_parent_dmat)) { 811 ciss_printf(sc, "can't allocate parent DMA tag\n"); 812 return(ENOMEM); 813 } 814 815 /* 816 * Create DMA tag for mapping buffers into adapter-addressable 817 * space. 818 */ 819 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 820 1, 0, /* alignment, boundary */ 821 BUS_SPACE_MAXADDR, /* lowaddr */ 822 BUS_SPACE_MAXADDR, /* highaddr */ 823 NULL, NULL, /* filter, filterarg */ 824 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 825 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 826 BUS_DMA_ALLOCNOW, /* flags */ 827 &sc->ciss_buffer_dmat)) { 828 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 829 return(ENOMEM); 830 } 831 return(0); 832 } 833 834 /************************************************************************ 835 * Setup MSI/MSIX operation (Performant only) 836 * Four interrupts are available, but we only use 1 right now. If MSI-X 837 * isn't avaialble, try using MSI instead. 838 */ 839 static int 840 ciss_setup_msix(struct ciss_softc *sc) 841 { 842 int val, i; 843 844 /* Weed out devices that don't actually support MSI */ 845 i = ciss_lookup(sc->ciss_dev); 846 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 847 return (EINVAL); 848 849 #if 0 /* XXX swildner */ 850 /* 851 * Only need to use the minimum number of MSI vectors, as the driver 852 * doesn't support directed MSIX interrupts. 853 */ 854 val = pci_msix_count(sc->ciss_dev); 855 if (val < CISS_MSI_COUNT) { 856 val = pci_msi_count(sc->ciss_dev); 857 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 858 if (val < CISS_MSI_COUNT) 859 return (EINVAL); 860 } 861 val = MIN(val, CISS_MSI_COUNT); 862 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 863 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 864 return (EINVAL); 865 } 866 #endif 867 868 val = 1; 869 sc->ciss_msi = val; 870 if (bootverbose) 871 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 872 (val != 1) ? "s" : ""); 873 874 for (i = 0; i < val; i++) 875 sc->ciss_irq_rid[i] = i + 1; 876 877 return (0); 878 879 } 880 881 /************************************************************************ 882 * Setup the Performant structures. 883 */ 884 static int 885 ciss_init_perf(struct ciss_softc *sc) 886 { 887 struct ciss_perf_config *pc = sc->ciss_perf; 888 int reply_size; 889 890 /* 891 * Create the DMA tag for the reply queue. 892 */ 893 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 894 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 895 1, 0, /* alignment, boundary */ 896 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 897 BUS_SPACE_MAXADDR, /* highaddr */ 898 NULL, NULL, /* filter, filterarg */ 899 reply_size, 1, /* maxsize, nsegments */ 900 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 901 0, /* flags */ 902 &sc->ciss_reply_dmat)) { 903 ciss_printf(sc, "can't allocate reply DMA tag\n"); 904 return(ENOMEM); 905 } 906 /* 907 * Allocate memory and make it available for DMA. 908 */ 909 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 910 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 911 ciss_printf(sc, "can't allocate reply memory\n"); 912 return(ENOMEM); 913 } 914 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 915 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 916 bzero(sc->ciss_reply, reply_size); 917 918 sc->ciss_cycle = 0x1; 919 sc->ciss_rqidx = 0; 920 921 /* 922 * Preload the fetch table with common command sizes. This allows the 923 * hardware to not waste bus cycles for typical i/o commands, but also not 924 * tax the driver to be too exact in choosing sizes. The table is optimized 925 * for page-aligned i/o's, but since most i/o comes from the various pagers, 926 * it's a reasonable assumption to make. 927 */ 928 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 929 pc->fetch_count[CISS_SG_FETCH_1] = 930 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 931 pc->fetch_count[CISS_SG_FETCH_2] = 932 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 933 pc->fetch_count[CISS_SG_FETCH_4] = 934 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 935 pc->fetch_count[CISS_SG_FETCH_8] = 936 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 937 pc->fetch_count[CISS_SG_FETCH_16] = 938 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 939 pc->fetch_count[CISS_SG_FETCH_32] = 940 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 941 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 942 943 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 944 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 945 pc->rq_bank_hi = 0; 946 pc->rq_bank_lo = 0; 947 pc->rq[0].rq_addr_hi = 0x0; 948 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 949 950 return(0); 951 } 952 953 /************************************************************************ 954 * Wait for the adapter to come ready. 955 */ 956 static int 957 ciss_wait_adapter(struct ciss_softc *sc) 958 { 959 int i; 960 961 debug_called(1); 962 963 /* 964 * Wait for the adapter to come ready. 965 */ 966 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 967 ciss_printf(sc, "waiting for adapter to come ready...\n"); 968 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 969 DELAY(1000000); /* one second */ 970 if (i > 30) { 971 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 972 return(EIO); 973 } 974 } 975 } 976 return(0); 977 } 978 979 /************************************************************************ 980 * Flush the adapter cache. 981 */ 982 static int 983 ciss_flush_adapter(struct ciss_softc *sc) 984 { 985 struct ciss_request *cr; 986 struct ciss_bmic_flush_cache *cbfc; 987 int error, command_status; 988 989 debug_called(1); 990 991 cr = NULL; 992 cbfc = NULL; 993 994 /* 995 * Build a BMIC request to flush the cache. We don't disable 996 * it, as we may be going to do more I/O (eg. we are emulating 997 * the Synchronise Cache command). 998 */ 999 cbfc = kmalloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1000 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1001 (void **)&cbfc, sizeof(*cbfc))) != 0) 1002 goto out; 1003 1004 /* 1005 * Submit the request and wait for it to complete. 1006 */ 1007 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1008 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1009 goto out; 1010 } 1011 1012 /* 1013 * Check response. 1014 */ 1015 ciss_report_request(cr, &command_status, NULL); 1016 switch(command_status) { 1017 case CISS_CMD_STATUS_SUCCESS: 1018 break; 1019 default: 1020 ciss_printf(sc, "error flushing cache (%s)\n", 1021 ciss_name_command_status(command_status)); 1022 error = EIO; 1023 goto out; 1024 } 1025 1026 out: 1027 if (cbfc != NULL) 1028 kfree(cbfc, CISS_MALLOC_CLASS); 1029 if (cr != NULL) 1030 ciss_release_request(cr); 1031 return(error); 1032 } 1033 1034 static void 1035 ciss_soft_reset(struct ciss_softc *sc) 1036 { 1037 struct ciss_request *cr = NULL; 1038 struct ciss_command *cc; 1039 int i, error = 0; 1040 1041 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1042 /* only reset proxy controllers */ 1043 if (sc->ciss_controllers[i].physical.bus == 0) 1044 continue; 1045 1046 if ((error = ciss_get_request(sc, &cr)) != 0) 1047 break; 1048 1049 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1050 NULL, 0)) != 0) 1051 break; 1052 1053 cc = cr->cr_cc; 1054 cc->header.address = sc->ciss_controllers[i]; 1055 1056 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1057 break; 1058 1059 ciss_release_request(cr); 1060 } 1061 1062 if (error) 1063 ciss_printf(sc, "error resetting controller (%d)\n", error); 1064 1065 if (cr != NULL) 1066 ciss_release_request(cr); 1067 } 1068 1069 /************************************************************************ 1070 * Allocate memory for the adapter command structures, initialise 1071 * the request structures. 1072 * 1073 * Note that the entire set of commands are allocated in a single 1074 * contiguous slab. 1075 */ 1076 static int 1077 ciss_init_requests(struct ciss_softc *sc) 1078 { 1079 struct ciss_request *cr; 1080 int i; 1081 1082 debug_called(1); 1083 1084 if (bootverbose) 1085 ciss_printf(sc, "using %d of %d available commands\n", 1086 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1087 1088 /* 1089 * Create the DMA tag for commands. 1090 */ 1091 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1092 32, 0, /* alignment, boundary */ 1093 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1094 BUS_SPACE_MAXADDR, /* highaddr */ 1095 NULL, NULL, /* filter, filterarg */ 1096 CISS_COMMAND_ALLOC_SIZE * 1097 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1098 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1099 0, /* flags */ 1100 &sc->ciss_command_dmat)) { 1101 ciss_printf(sc, "can't allocate command DMA tag\n"); 1102 return(ENOMEM); 1103 } 1104 /* 1105 * Allocate memory and make it available for DMA. 1106 */ 1107 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1108 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1109 ciss_printf(sc, "can't allocate command memory\n"); 1110 return(ENOMEM); 1111 } 1112 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1113 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1114 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1115 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1116 1117 /* 1118 * Set up the request and command structures, push requests onto 1119 * the free queue. 1120 */ 1121 for (i = 1; i < sc->ciss_max_requests; i++) { 1122 cr = &sc->ciss_request[i]; 1123 cr->cr_sc = sc; 1124 cr->cr_tag = i; 1125 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1126 CISS_COMMAND_ALLOC_SIZE * i); 1127 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1128 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1129 ciss_enqueue_free(cr); 1130 } 1131 return(0); 1132 } 1133 1134 static void 1135 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1136 { 1137 uint32_t *addr; 1138 1139 addr = arg; 1140 *addr = segs[0].ds_addr; 1141 } 1142 1143 /************************************************************************ 1144 * Identify the adapter, print some information about it. 1145 */ 1146 static int 1147 ciss_identify_adapter(struct ciss_softc *sc) 1148 { 1149 struct ciss_request *cr; 1150 int error, command_status; 1151 1152 debug_called(1); 1153 1154 cr = NULL; 1155 1156 /* 1157 * Get a request, allocate storage for the adapter data. 1158 */ 1159 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1160 (void **)&sc->ciss_id, 1161 sizeof(*sc->ciss_id))) != 0) 1162 goto out; 1163 1164 /* 1165 * Submit the request and wait for it to complete. 1166 */ 1167 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1168 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1169 goto out; 1170 } 1171 1172 /* 1173 * Check response. 1174 */ 1175 ciss_report_request(cr, &command_status, NULL); 1176 switch(command_status) { 1177 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1178 break; 1179 case CISS_CMD_STATUS_DATA_UNDERRUN: 1180 case CISS_CMD_STATUS_DATA_OVERRUN: 1181 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1182 default: 1183 ciss_printf(sc, "error reading adapter information (%s)\n", 1184 ciss_name_command_status(command_status)); 1185 error = EIO; 1186 goto out; 1187 } 1188 1189 /* sanity-check reply */ 1190 if (!sc->ciss_id->big_map_supported) { 1191 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1192 error = ENXIO; 1193 goto out; 1194 } 1195 1196 #if 0 1197 /* XXX later revisions may not need this */ 1198 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1199 #endif 1200 1201 /* XXX only really required for old 5300 adapters? */ 1202 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1203 1204 /* print information */ 1205 if (bootverbose) { 1206 #if 0 /* XXX proxy volumes??? */ 1207 ciss_printf(sc, " %d logical drive%s configured\n", 1208 sc->ciss_id->configured_logical_drives, 1209 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1210 #endif 1211 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1212 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count); 1213 1214 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1215 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1216 ciss_printf(sc, " supported I/O methods 0x%b\n", 1217 sc->ciss_cfg->supported_methods, 1218 "\20\1READY\2simple\3performant\4MEMQ\n"); 1219 ciss_printf(sc, " active I/O method 0x%b\n", 1220 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1221 ciss_printf(sc, " 4G page base 0x%08x\n", 1222 sc->ciss_cfg->command_physlimit); 1223 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1224 sc->ciss_cfg->interrupt_coalesce_delay); 1225 ciss_printf(sc, " interrupt coalesce count %d\n", 1226 sc->ciss_cfg->interrupt_coalesce_count); 1227 ciss_printf(sc, " max outstanding commands %d\n", 1228 sc->ciss_cfg->max_outstanding_commands); 1229 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1230 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1231 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1232 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1233 } 1234 1235 out: 1236 if (error) { 1237 if (sc->ciss_id != NULL) { 1238 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1239 sc->ciss_id = NULL; 1240 } 1241 } 1242 if (cr != NULL) 1243 ciss_release_request(cr); 1244 return(error); 1245 } 1246 1247 /************************************************************************ 1248 * Helper routine for generating a list of logical and physical luns. 1249 */ 1250 static struct ciss_lun_report * 1251 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1252 { 1253 struct ciss_request *cr; 1254 struct ciss_command *cc; 1255 struct ciss_report_cdb *crc; 1256 struct ciss_lun_report *cll; 1257 int command_status; 1258 int report_size; 1259 int error = 0; 1260 1261 debug_called(1); 1262 1263 cr = NULL; 1264 cll = NULL; 1265 1266 /* 1267 * Get a request, allocate storage for the address list. 1268 */ 1269 if ((error = ciss_get_request(sc, &cr)) != 0) 1270 goto out; 1271 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1272 cll = kmalloc(report_size, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1273 1274 /* 1275 * Build the Report Logical/Physical LUNs command. 1276 */ 1277 cc = cr->cr_cc; 1278 cr->cr_data = cll; 1279 cr->cr_length = report_size; 1280 cr->cr_flags = CISS_REQ_DATAIN; 1281 1282 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1283 cc->header.address.physical.bus = 0; 1284 cc->header.address.physical.target = 0; 1285 cc->cdb.cdb_length = sizeof(*crc); 1286 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1287 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1288 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1289 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1290 1291 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1292 bzero(crc, sizeof(*crc)); 1293 crc->opcode = opcode; 1294 crc->length = htonl(report_size); /* big-endian field */ 1295 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1296 1297 /* 1298 * Submit the request and wait for it to complete. (timeout 1299 * here should be much greater than above) 1300 */ 1301 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1302 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1303 goto out; 1304 } 1305 1306 /* 1307 * Check response. Note that data over/underrun is OK. 1308 */ 1309 ciss_report_request(cr, &command_status, NULL); 1310 switch(command_status) { 1311 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1312 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1313 break; 1314 case CISS_CMD_STATUS_DATA_OVERRUN: 1315 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1316 CISS_MAX_LOGICAL); 1317 break; 1318 default: 1319 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1320 ciss_name_command_status(command_status)); 1321 error = EIO; 1322 goto out; 1323 } 1324 ciss_release_request(cr); 1325 cr = NULL; 1326 1327 out: 1328 if (cr != NULL) 1329 ciss_release_request(cr); 1330 if (error && cll != NULL) { 1331 kfree(cll, CISS_MALLOC_CLASS); 1332 cll = NULL; 1333 } 1334 return(cll); 1335 } 1336 1337 /************************************************************************ 1338 * Find logical drives on the adapter. 1339 */ 1340 static int 1341 ciss_init_logical(struct ciss_softc *sc) 1342 { 1343 struct ciss_lun_report *cll; 1344 int error = 0, i, j; 1345 int ndrives; 1346 1347 debug_called(1); 1348 1349 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1350 CISS_MAX_LOGICAL); 1351 if (cll == NULL) { 1352 error = ENXIO; 1353 goto out; 1354 } 1355 1356 /* sanity-check reply */ 1357 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1358 if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) { 1359 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1360 ndrives, CISS_MAX_LOGICAL); 1361 error = ENXIO; 1362 goto out; 1363 } 1364 1365 /* 1366 * Save logical drive information. 1367 */ 1368 if (bootverbose) { 1369 ciss_printf(sc, "%d logical drive%s\n", 1370 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1371 } 1372 1373 sc->ciss_logical = 1374 kmalloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1375 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1376 1377 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1378 sc->ciss_logical[i] = 1379 kmalloc(CISS_MAX_LOGICAL * sizeof(struct ciss_ldrive), 1380 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1381 1382 for (j = 0; j < CISS_MAX_LOGICAL; j++) 1383 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1384 } 1385 1386 1387 for (i = 0; i < CISS_MAX_LOGICAL; i++) { 1388 if (i < ndrives) { 1389 struct ciss_ldrive *ld; 1390 int bus, target; 1391 1392 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1393 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1394 ld = &sc->ciss_logical[bus][target]; 1395 1396 ld->cl_address = cll->lun[i]; 1397 ld->cl_controller = &sc->ciss_controllers[bus]; 1398 if (ciss_identify_logical(sc, ld) != 0) 1399 continue; 1400 /* 1401 * If the drive has had media exchanged, we should bring it online. 1402 */ 1403 if (ld->cl_lstatus->media_exchanged) 1404 ciss_accept_media(sc, ld); 1405 1406 } 1407 } 1408 1409 out: 1410 if (cll != NULL) 1411 kfree(cll, CISS_MALLOC_CLASS); 1412 return(error); 1413 } 1414 1415 static int 1416 ciss_init_physical(struct ciss_softc *sc) 1417 { 1418 struct ciss_lun_report *cll; 1419 int error = 0, i; 1420 int nphys; 1421 int bus; 1422 1423 debug_called(1); 1424 1425 bus = 0; 1426 1427 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1428 CISS_MAX_PHYSICAL); 1429 if (cll == NULL) { 1430 error = ENXIO; 1431 goto out; 1432 } 1433 1434 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1435 1436 if (bootverbose) { 1437 ciss_printf(sc, "%d physical device%s\n", 1438 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1439 } 1440 1441 /* 1442 * Figure out the bus mapping. 1443 * Logical buses include both the local logical bus for local arrays and 1444 * proxy buses for remote arrays. Physical buses are numbered by the 1445 * controller and represent physical buses that hold physical devices. 1446 * We shift these bus numbers so that everything fits into a single flat 1447 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1448 * numbers, and the physical bus numbers are shifted to be above that. 1449 * This results in the various driver arrays being indexed as follows: 1450 * 1451 * ciss_controllers[] - indexed by logical bus 1452 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1453 * being shifted by 32. 1454 * ciss_logical[][] - indexed by logical bus 1455 * ciss_physical[][] - indexed by physical bus 1456 * 1457 * XXX This is getting more and more hackish. CISS really doesn't play 1458 * well with a standard SCSI model; devices are addressed via magic 1459 * cookies, not via b/t/l addresses. Since there is no way to store 1460 * the cookie in the CAM device object, we have to keep these lookup 1461 * tables handy so that the devices can be found quickly at the cost 1462 * of wasting memory and having a convoluted lookup scheme. This 1463 * driver should probably be converted to block interface. 1464 */ 1465 /* 1466 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1467 * controller. A proxy controller is another physical controller 1468 * behind the primary PCI controller. We need to know about this 1469 * so that BMIC commands can be properly targeted. There can be 1470 * proxy controllers attached to a single PCI controller, so 1471 * find the highest numbered one so the array can be properly 1472 * sized. 1473 */ 1474 sc->ciss_max_logical_bus = 1; 1475 for (i = 0; i < nphys; i++) { 1476 if (cll->lun[i].physical.extra_address == 0) { 1477 bus = cll->lun[i].physical.bus; 1478 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1479 } else { 1480 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1481 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1482 } 1483 } 1484 1485 sc->ciss_controllers = 1486 kmalloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1487 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1488 1489 /* setup a map of controller addresses */ 1490 for (i = 0; i < nphys; i++) { 1491 if (cll->lun[i].physical.extra_address == 0) { 1492 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1493 } 1494 } 1495 1496 sc->ciss_physical = 1497 kmalloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1498 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1499 1500 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1501 sc->ciss_physical[i] = 1502 kmalloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1503 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 1504 } 1505 1506 ciss_filter_physical(sc, cll); 1507 1508 out: 1509 if (cll != NULL) 1510 kfree(cll, CISS_MALLOC_CLASS); 1511 1512 return(error); 1513 } 1514 1515 static int 1516 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1517 { 1518 u_int32_t ea; 1519 int i, nphys; 1520 int bus, target; 1521 1522 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1523 for (i = 0; i < nphys; i++) { 1524 if (cll->lun[i].physical.extra_address == 0) 1525 continue; 1526 1527 /* 1528 * Filter out devices that we don't want. Level 3 LUNs could 1529 * probably be supported, but the docs don't give enough of a 1530 * hint to know how. 1531 * 1532 * The mode field of the physical address is likely set to have 1533 * hard disks masked out. Honor it unless the user has overridden 1534 * us with the tunable. We also munge the inquiry data for these 1535 * disks so that they only show up as passthrough devices. Keeping 1536 * them visible in this fashion is useful for doing things like 1537 * flashing firmware. 1538 */ 1539 ea = cll->lun[i].physical.extra_address; 1540 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1541 (CISS_EXTRA_MODE2(ea) == 0x3)) 1542 continue; 1543 if ((ciss_expose_hidden_physical == 0) && 1544 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1545 continue; 1546 1547 /* 1548 * Note: CISS firmware numbers physical busses starting at '1', not 1549 * '0'. This numbering is internal to the firmware and is only 1550 * used as a hint here. 1551 */ 1552 bus = CISS_EXTRA_BUS2(ea) - 1; 1553 target = CISS_EXTRA_TARGET2(ea); 1554 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1555 sc->ciss_physical[bus][target].cp_online = 1; 1556 } 1557 1558 return (0); 1559 } 1560 1561 static int 1562 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1563 { 1564 struct ciss_request *cr; 1565 struct ciss_command *cc; 1566 struct scsi_inquiry *inq; 1567 int error; 1568 int command_status; 1569 1570 cr = NULL; 1571 1572 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1573 1574 if ((error = ciss_get_request(sc, &cr)) != 0) 1575 goto out; 1576 1577 cc = cr->cr_cc; 1578 cr->cr_data = &ld->cl_geometry; 1579 cr->cr_length = sizeof(ld->cl_geometry); 1580 cr->cr_flags = CISS_REQ_DATAIN; 1581 1582 cc->header.address = ld->cl_address; 1583 cc->cdb.cdb_length = 6; 1584 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1585 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1586 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1587 cc->cdb.timeout = 30; 1588 1589 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1590 inq->opcode = INQUIRY; 1591 inq->byte2 = SI_EVPD; 1592 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1593 inq->length = sizeof(ld->cl_geometry); 1594 1595 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1596 ciss_printf(sc, "error getting geometry (%d)\n", error); 1597 goto out; 1598 } 1599 1600 ciss_report_request(cr, &command_status, NULL); 1601 switch(command_status) { 1602 case CISS_CMD_STATUS_SUCCESS: 1603 case CISS_CMD_STATUS_DATA_UNDERRUN: 1604 break; 1605 case CISS_CMD_STATUS_DATA_OVERRUN: 1606 ciss_printf(sc, "WARNING: Data overrun\n"); 1607 break; 1608 default: 1609 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1610 ciss_name_command_status(command_status)); 1611 break; 1612 } 1613 1614 out: 1615 if (cr != NULL) 1616 ciss_release_request(cr); 1617 return(error); 1618 } 1619 /************************************************************************ 1620 * Identify a logical drive, initialise state related to it. 1621 */ 1622 static int 1623 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1624 { 1625 struct ciss_request *cr; 1626 struct ciss_command *cc; 1627 struct ciss_bmic_cdb *cbc; 1628 int error, command_status; 1629 1630 debug_called(1); 1631 1632 cr = NULL; 1633 1634 /* 1635 * Build a BMIC request to fetch the drive ID. 1636 */ 1637 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1638 (void **)&ld->cl_ldrive, 1639 sizeof(*ld->cl_ldrive))) != 0) 1640 goto out; 1641 cc = cr->cr_cc; 1642 cc->header.address = *ld->cl_controller; /* target controller */ 1643 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1644 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1645 1646 /* 1647 * Submit the request and wait for it to complete. 1648 */ 1649 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1650 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1651 goto out; 1652 } 1653 1654 /* 1655 * Check response. 1656 */ 1657 ciss_report_request(cr, &command_status, NULL); 1658 switch(command_status) { 1659 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1660 break; 1661 case CISS_CMD_STATUS_DATA_UNDERRUN: 1662 case CISS_CMD_STATUS_DATA_OVERRUN: 1663 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1664 default: 1665 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1666 ciss_name_command_status(command_status)); 1667 error = EIO; 1668 goto out; 1669 } 1670 ciss_release_request(cr); 1671 cr = NULL; 1672 1673 /* 1674 * Build a CISS BMIC command to get the logical drive status. 1675 */ 1676 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1677 goto out; 1678 1679 /* 1680 * Get the logical drive geometry. 1681 */ 1682 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1683 goto out; 1684 1685 /* 1686 * Print the drive's basic characteristics. 1687 */ 1688 if (bootverbose) { 1689 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1690 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1691 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1692 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1693 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1694 ld->cl_ldrive->block_size)); 1695 1696 ciss_print_ldrive(sc, ld); 1697 } 1698 out: 1699 if (error != 0) { 1700 /* make the drive not-exist */ 1701 ld->cl_status = CISS_LD_NONEXISTENT; 1702 if (ld->cl_ldrive != NULL) { 1703 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 1704 ld->cl_ldrive = NULL; 1705 } 1706 if (ld->cl_lstatus != NULL) { 1707 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 1708 ld->cl_lstatus = NULL; 1709 } 1710 } 1711 if (cr != NULL) 1712 ciss_release_request(cr); 1713 1714 return(error); 1715 } 1716 1717 /************************************************************************ 1718 * Get status for a logical drive. 1719 * 1720 * XXX should we also do this in response to Test Unit Ready? 1721 */ 1722 static int 1723 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1724 { 1725 struct ciss_request *cr; 1726 struct ciss_command *cc; 1727 struct ciss_bmic_cdb *cbc; 1728 int error, command_status; 1729 1730 /* 1731 * Build a CISS BMIC command to get the logical drive status. 1732 */ 1733 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1734 (void **)&ld->cl_lstatus, 1735 sizeof(*ld->cl_lstatus))) != 0) 1736 goto out; 1737 cc = cr->cr_cc; 1738 cc->header.address = *ld->cl_controller; /* target controller */ 1739 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1740 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1741 1742 /* 1743 * Submit the request and wait for it to complete. 1744 */ 1745 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1746 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1747 goto out; 1748 } 1749 1750 /* 1751 * Check response. 1752 */ 1753 ciss_report_request(cr, &command_status, NULL); 1754 switch(command_status) { 1755 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1756 break; 1757 case CISS_CMD_STATUS_DATA_UNDERRUN: 1758 case CISS_CMD_STATUS_DATA_OVERRUN: 1759 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1760 default: 1761 ciss_printf(sc, "error reading logical drive status (%s)\n", 1762 ciss_name_command_status(command_status)); 1763 error = EIO; 1764 goto out; 1765 } 1766 1767 /* 1768 * Set the drive's summary status based on the returned status. 1769 * 1770 * XXX testing shows that a failed JBOD drive comes back at next 1771 * boot in "queued for expansion" mode. WTF? 1772 */ 1773 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1774 1775 out: 1776 if (cr != NULL) 1777 ciss_release_request(cr); 1778 return(error); 1779 } 1780 1781 /************************************************************************ 1782 * Notify the adapter of a config update. 1783 */ 1784 static int 1785 ciss_update_config(struct ciss_softc *sc) 1786 { 1787 int i; 1788 1789 debug_called(1); 1790 1791 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1792 for (i = 0; i < 1000; i++) { 1793 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1794 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1795 return(0); 1796 } 1797 DELAY(1000); 1798 } 1799 return(1); 1800 } 1801 1802 /************************************************************************ 1803 * Accept new media into a logical drive. 1804 * 1805 * XXX The drive has previously been offline; it would be good if we 1806 * could make sure it's not open right now. 1807 */ 1808 static int 1809 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1810 { 1811 struct ciss_request *cr; 1812 struct ciss_command *cc; 1813 struct ciss_bmic_cdb *cbc; 1814 int command_status; 1815 int error = 0, ldrive; 1816 1817 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1818 1819 debug(0, "bringing logical drive %d back online", ldrive); 1820 1821 /* 1822 * Build a CISS BMIC command to bring the drive back online. 1823 */ 1824 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1825 NULL, 0)) != 0) 1826 goto out; 1827 cc = cr->cr_cc; 1828 cc->header.address = *ld->cl_controller; /* target controller */ 1829 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1830 cbc->log_drive = ldrive; 1831 1832 /* 1833 * Submit the request and wait for it to complete. 1834 */ 1835 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1836 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1837 goto out; 1838 } 1839 1840 /* 1841 * Check response. 1842 */ 1843 ciss_report_request(cr, &command_status, NULL); 1844 switch(command_status) { 1845 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1846 /* we should get a logical drive status changed event here */ 1847 break; 1848 default: 1849 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1850 ciss_name_command_status(command_status)); 1851 break; 1852 } 1853 1854 out: 1855 if (cr != NULL) 1856 ciss_release_request(cr); 1857 return(error); 1858 } 1859 1860 /************************************************************************ 1861 * Release adapter resources. 1862 */ 1863 static void 1864 ciss_free(struct ciss_softc *sc) 1865 { 1866 struct ciss_request *cr; 1867 int i, j; 1868 1869 debug_called(1); 1870 1871 /* we're going away */ 1872 sc->ciss_flags |= CISS_FLAG_ABORTING; 1873 1874 /* terminate the periodic heartbeat routine */ 1875 callout_stop(&sc->ciss_periodic); 1876 1877 /* cancel the Event Notify chain */ 1878 ciss_notify_abort(sc); 1879 1880 ciss_kill_notify_thread(sc); 1881 1882 /* disconnect from CAM */ 1883 if (sc->ciss_cam_sim) { 1884 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1885 if (sc->ciss_cam_sim[i]) { 1886 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1887 cam_sim_free(sc->ciss_cam_sim[i]); 1888 } 1889 } 1890 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1891 CISS_PHYSICAL_BASE; i++) { 1892 if (sc->ciss_cam_sim[i]) { 1893 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1894 cam_sim_free(sc->ciss_cam_sim[i]); 1895 } 1896 } 1897 kfree(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1898 } 1899 if (sc->ciss_cam_devq) 1900 cam_simq_release(sc->ciss_cam_devq); 1901 1902 /* remove the control device */ 1903 lockmgr(&sc->ciss_lock, LK_RELEASE); 1904 if (sc->ciss_dev_t != NULL) 1905 destroy_dev(sc->ciss_dev_t); 1906 1907 /* Final cleanup of the callout. */ 1908 callout_stop_sync(&sc->ciss_periodic); 1909 lockuninit(&sc->ciss_lock); 1910 1911 /* free the controller data */ 1912 if (sc->ciss_id != NULL) 1913 kfree(sc->ciss_id, CISS_MALLOC_CLASS); 1914 1915 /* release I/O resources */ 1916 if (sc->ciss_regs_resource != NULL) 1917 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1918 sc->ciss_regs_rid, sc->ciss_regs_resource); 1919 if (sc->ciss_cfg_resource != NULL) 1920 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1921 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1922 if (sc->ciss_intr != NULL) 1923 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1924 if (sc->ciss_irq_resource != NULL) 1925 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 1926 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 1927 if (sc->ciss_irq_type == PCI_INTR_TYPE_MSI) 1928 pci_release_msi(sc->ciss_dev); 1929 1930 while ((cr = ciss_dequeue_free(sc)) != NULL) 1931 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 1932 if (sc->ciss_buffer_dmat) 1933 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 1934 1935 /* destroy command memory and DMA tag */ 1936 if (sc->ciss_command != NULL) { 1937 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 1938 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 1939 } 1940 if (sc->ciss_command_dmat) 1941 bus_dma_tag_destroy(sc->ciss_command_dmat); 1942 1943 if (sc->ciss_reply) { 1944 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 1945 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 1946 } 1947 if (sc->ciss_reply_dmat) 1948 bus_dma_tag_destroy(sc->ciss_reply_dmat); 1949 1950 /* destroy DMA tags */ 1951 if (sc->ciss_parent_dmat) 1952 bus_dma_tag_destroy(sc->ciss_parent_dmat); 1953 if (sc->ciss_logical) { 1954 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1955 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 1956 if (sc->ciss_logical[i][j].cl_ldrive) 1957 kfree(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 1958 if (sc->ciss_logical[i][j].cl_lstatus) 1959 kfree(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 1960 } 1961 kfree(sc->ciss_logical[i], CISS_MALLOC_CLASS); 1962 } 1963 kfree(sc->ciss_logical, CISS_MALLOC_CLASS); 1964 } 1965 1966 if (sc->ciss_physical) { 1967 for (i = 0; i < sc->ciss_max_physical_bus; i++) 1968 kfree(sc->ciss_physical[i], CISS_MALLOC_CLASS); 1969 kfree(sc->ciss_physical, CISS_MALLOC_CLASS); 1970 } 1971 1972 if (sc->ciss_controllers) 1973 kfree(sc->ciss_controllers, CISS_MALLOC_CLASS); 1974 } 1975 1976 /************************************************************************ 1977 * Give a command to the adapter. 1978 * 1979 * Note that this uses the simple transport layer directly. If we 1980 * want to add support for other layers, we'll need a switch of some 1981 * sort. 1982 * 1983 * Note that the simple transport layer has no way of refusing a 1984 * command; we only have as many request structures as the adapter 1985 * supports commands, so we don't have to check (this presumes that 1986 * the adapter can handle commands as fast as we throw them at it). 1987 */ 1988 static int 1989 ciss_start(struct ciss_request *cr) 1990 { 1991 #ifdef CISS_DEBUG 1992 struct ciss_command *cc; 1993 #endif 1994 int error; 1995 1996 #ifdef CISS_DEBUG 1997 cc = cr->cr_cc; 1998 #endif 1999 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2000 2001 /* 2002 * Map the request's data. 2003 */ 2004 if ((error = ciss_map_request(cr))) 2005 return(error); 2006 2007 #if 0 2008 ciss_print_request(cr); 2009 #endif 2010 2011 return(0); 2012 } 2013 2014 /************************************************************************ 2015 * Fetch completed request(s) from the adapter, queue them for 2016 * completion handling. 2017 * 2018 * Note that this uses the simple transport layer directly. If we 2019 * want to add support for other layers, we'll need a switch of some 2020 * sort. 2021 * 2022 * Note that the simple transport mechanism does not require any 2023 * reentrancy protection; the OPQ read is atomic. If there is a 2024 * chance of a race with something else that might move the request 2025 * off the busy list, then we will have to lock against that 2026 * (eg. timeouts, etc.) 2027 */ 2028 static void 2029 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2030 { 2031 struct ciss_request *cr; 2032 struct ciss_command *cc; 2033 u_int32_t tag, index; 2034 2035 debug_called(3); 2036 2037 /* 2038 * Loop quickly taking requests from the adapter and moving them 2039 * to the completed queue. 2040 */ 2041 for (;;) { 2042 2043 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2044 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2045 break; 2046 index = tag >> 2; 2047 debug(2, "completed command %d%s", index, 2048 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2049 if (index >= sc->ciss_max_requests) { 2050 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2051 continue; 2052 } 2053 cr = &(sc->ciss_request[index]); 2054 cc = cr->cr_cc; 2055 cc->header.host_tag = tag; /* not updated by adapter */ 2056 ciss_enqueue_complete(cr, qh); 2057 } 2058 2059 } 2060 2061 static void 2062 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2063 { 2064 struct ciss_request *cr; 2065 struct ciss_command *cc; 2066 u_int32_t tag, index; 2067 2068 debug_called(3); 2069 2070 /* 2071 * Loop quickly taking requests from the adapter and moving them 2072 * to the completed queue. 2073 */ 2074 for (;;) { 2075 tag = sc->ciss_reply[sc->ciss_rqidx]; 2076 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2077 break; 2078 index = tag >> 2; 2079 debug(2, "completed command %d%s\n", index, 2080 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2081 if (index < sc->ciss_max_requests) { 2082 cr = &(sc->ciss_request[index]); 2083 cc = cr->cr_cc; 2084 cc->header.host_tag = tag; /* not updated by adapter */ 2085 ciss_enqueue_complete(cr, qh); 2086 } else { 2087 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2088 } 2089 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2090 sc->ciss_rqidx = 0; 2091 sc->ciss_cycle ^= 1; 2092 } 2093 } 2094 2095 } 2096 2097 /************************************************************************ 2098 * Take an interrupt from the adapter. 2099 */ 2100 static void 2101 ciss_intr(void *arg) 2102 { 2103 cr_qhead_t qh; 2104 struct ciss_softc *sc = (struct ciss_softc *)arg; 2105 2106 /* 2107 * The only interrupt we recognise indicates that there are 2108 * entries in the outbound post queue. 2109 */ 2110 STAILQ_INIT(&qh); 2111 ciss_done(sc, &qh); 2112 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2113 ciss_complete(sc, &qh); 2114 lockmgr(&sc->ciss_lock, LK_RELEASE); 2115 } 2116 2117 static void 2118 ciss_perf_intr(void *arg) 2119 { 2120 struct ciss_softc *sc = (struct ciss_softc *)arg; 2121 2122 /* Clear the interrupt and flush the bridges. Docs say that the flush 2123 * needs to be done twice, which doesn't seem right. 2124 */ 2125 CISS_TL_PERF_CLEAR_INT(sc); 2126 CISS_TL_PERF_FLUSH_INT(sc); 2127 2128 ciss_perf_msi_intr(sc); 2129 } 2130 2131 static void 2132 ciss_perf_msi_intr(void *arg) 2133 { 2134 cr_qhead_t qh; 2135 struct ciss_softc *sc = (struct ciss_softc *)arg; 2136 2137 STAILQ_INIT(&qh); 2138 ciss_perf_done(sc, &qh); 2139 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2140 ciss_complete(sc, &qh); 2141 lockmgr(&sc->ciss_lock, LK_RELEASE); 2142 } 2143 2144 2145 /************************************************************************ 2146 * Process completed requests. 2147 * 2148 * Requests can be completed in three fashions: 2149 * 2150 * - by invoking a callback function (cr_complete is non-null) 2151 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2152 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2153 */ 2154 static void 2155 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2156 { 2157 struct ciss_request *cr; 2158 2159 debug_called(2); 2160 2161 /* 2162 * Loop taking requests off the completed queue and performing 2163 * completion processing on them. 2164 */ 2165 for (;;) { 2166 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2167 break; 2168 ciss_unmap_request(cr); 2169 2170 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2171 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2172 cr->cr_flags &= ~CISS_REQ_BUSY; 2173 2174 /* 2175 * If the request has a callback, invoke it. 2176 */ 2177 if (cr->cr_complete != NULL) { 2178 cr->cr_complete(cr); 2179 continue; 2180 } 2181 2182 /* 2183 * If someone is sleeping on this request, wake them up. 2184 */ 2185 if (cr->cr_flags & CISS_REQ_SLEEP) { 2186 cr->cr_flags &= ~CISS_REQ_SLEEP; 2187 wakeup(cr); 2188 continue; 2189 } 2190 2191 /* 2192 * If someone is polling this request for completion, signal. 2193 */ 2194 if (cr->cr_flags & CISS_REQ_POLL) { 2195 cr->cr_flags &= ~CISS_REQ_POLL; 2196 continue; 2197 } 2198 2199 /* 2200 * Give up and throw the request back on the free queue. This 2201 * should never happen; resources will probably be lost. 2202 */ 2203 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2204 ciss_enqueue_free(cr); 2205 } 2206 } 2207 2208 /************************************************************************ 2209 * Report on the completion status of a request, and pass back SCSI 2210 * and command status values. 2211 */ 2212 static int 2213 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2214 { 2215 struct ciss_command *cc; 2216 struct ciss_error_info *ce; 2217 2218 debug_called(2); 2219 2220 cc = cr->cr_cc; 2221 ce = (struct ciss_error_info *)&(cc->sg[0]); 2222 2223 /* 2224 * We don't consider data under/overrun an error for the Report 2225 * Logical/Physical LUNs commands. 2226 */ 2227 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2228 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2229 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2230 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2231 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2232 (cc->cdb.cdb[0] == INQUIRY))) { 2233 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2234 debug(2, "ignoring irrelevant under/overrun error"); 2235 } 2236 2237 /* 2238 * Check the command's error bit, if clear, there's no status and 2239 * everything is OK. 2240 */ 2241 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2242 if (scsi_status != NULL) 2243 *scsi_status = SCSI_STATUS_OK; 2244 if (command_status != NULL) 2245 *command_status = CISS_CMD_STATUS_SUCCESS; 2246 return(0); 2247 } else { 2248 if (command_status != NULL) 2249 *command_status = ce->command_status; 2250 if (scsi_status != NULL) { 2251 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2252 *scsi_status = ce->scsi_status; 2253 } else { 2254 *scsi_status = -1; 2255 } 2256 } 2257 if (bootverbose) 2258 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2259 ce->command_status, ciss_name_command_status(ce->command_status), 2260 ce->scsi_status); 2261 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2262 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2263 ce->additional_error_info.invalid_command.offense_size, 2264 ce->additional_error_info.invalid_command.offense_offset, 2265 ce->additional_error_info.invalid_command.offense_value, 2266 func); 2267 } 2268 } 2269 #if 0 2270 ciss_print_request(cr); 2271 #endif 2272 return(1); 2273 } 2274 2275 /************************************************************************ 2276 * Issue a request and don't return until it's completed. 2277 * 2278 * Depending on adapter status, we may poll or sleep waiting for 2279 * completion. 2280 */ 2281 static int 2282 ciss_synch_request(struct ciss_request *cr, int timeout) 2283 { 2284 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2285 return(ciss_wait_request(cr, timeout)); 2286 } else { 2287 return(ciss_poll_request(cr, timeout)); 2288 } 2289 } 2290 2291 /************************************************************************ 2292 * Issue a request and poll for completion. 2293 * 2294 * Timeout in milliseconds. 2295 */ 2296 static int 2297 ciss_poll_request(struct ciss_request *cr, int timeout) 2298 { 2299 cr_qhead_t qh; 2300 struct ciss_softc *sc; 2301 int error; 2302 2303 debug_called(2); 2304 2305 STAILQ_INIT(&qh); 2306 sc = cr->cr_sc; 2307 cr->cr_flags |= CISS_REQ_POLL; 2308 if ((error = ciss_start(cr)) != 0) 2309 return(error); 2310 2311 do { 2312 if (sc->ciss_perf) 2313 ciss_perf_done(sc, &qh); 2314 else 2315 ciss_done(sc, &qh); 2316 ciss_complete(sc, &qh); 2317 if (!(cr->cr_flags & CISS_REQ_POLL)) 2318 return(0); 2319 DELAY(1000); 2320 } while (timeout-- >= 0); 2321 return(EWOULDBLOCK); 2322 } 2323 2324 /************************************************************************ 2325 * Issue a request and sleep waiting for completion. 2326 * 2327 * Timeout in milliseconds. Note that a spurious wakeup will reset 2328 * the timeout. 2329 */ 2330 static int 2331 ciss_wait_request(struct ciss_request *cr, int timeout) 2332 { 2333 int error; 2334 2335 debug_called(2); 2336 2337 cr->cr_flags |= CISS_REQ_SLEEP; 2338 if ((error = ciss_start(cr)) != 0) 2339 return(error); 2340 2341 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2342 error = lksleep(cr, &cr->cr_sc->ciss_lock, 0, "cissREQ", (timeout * hz) / 1000); 2343 } 2344 return(error); 2345 } 2346 2347 #if 0 2348 /************************************************************************ 2349 * Abort a request. Note that a potential exists here to race the 2350 * request being completed; the caller must deal with this. 2351 */ 2352 static int 2353 ciss_abort_request(struct ciss_request *ar) 2354 { 2355 struct ciss_request *cr; 2356 struct ciss_command *cc; 2357 struct ciss_message_cdb *cmc; 2358 int error; 2359 2360 debug_called(1); 2361 2362 /* get a request */ 2363 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2364 return(error); 2365 2366 /* build the abort command */ 2367 cc = cr->cr_cc; 2368 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2369 cc->header.address.physical.target = 0; 2370 cc->header.address.physical.bus = 0; 2371 cc->cdb.cdb_length = sizeof(*cmc); 2372 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2373 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2374 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2375 cc->cdb.timeout = 30; 2376 2377 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2378 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2379 cmc->type = CISS_MESSAGE_ABORT_TASK; 2380 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2381 2382 /* 2383 * Send the request and wait for a response. If we believe we 2384 * aborted the request OK, clear the flag that indicates it's 2385 * running. 2386 */ 2387 error = ciss_synch_request(cr, 35 * 1000); 2388 if (!error) 2389 error = ciss_report_request(cr, NULL, NULL); 2390 ciss_release_request(cr); 2391 2392 return(error); 2393 } 2394 #endif 2395 2396 2397 /************************************************************************ 2398 * Fetch and initialise a request 2399 */ 2400 static int 2401 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2402 { 2403 struct ciss_request *cr; 2404 2405 debug_called(2); 2406 2407 /* 2408 * Get a request and clean it up. 2409 */ 2410 if ((cr = ciss_dequeue_free(sc)) == NULL) 2411 return(ENOMEM); 2412 2413 cr->cr_data = NULL; 2414 cr->cr_flags = 0; 2415 cr->cr_complete = NULL; 2416 cr->cr_private = NULL; 2417 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2418 2419 ciss_preen_command(cr); 2420 *crp = cr; 2421 return(0); 2422 } 2423 2424 static void 2425 ciss_preen_command(struct ciss_request *cr) 2426 { 2427 struct ciss_command *cc; 2428 u_int32_t cmdphys; 2429 2430 /* 2431 * Clean up the command structure. 2432 * 2433 * Note that we set up the error_info structure here, since the 2434 * length can be overwritten by any command. 2435 */ 2436 cc = cr->cr_cc; 2437 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2438 cc->header.sg_total = 0; 2439 cc->header.host_tag = cr->cr_tag << 2; 2440 cc->header.host_tag_zeroes = 0; 2441 cmdphys = cr->cr_ccphys; 2442 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2443 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2444 } 2445 2446 /************************************************************************ 2447 * Release a request to the free list. 2448 */ 2449 static void 2450 ciss_release_request(struct ciss_request *cr) 2451 { 2452 debug_called(2); 2453 2454 /* release the request to the free queue */ 2455 ciss_requeue_free(cr); 2456 } 2457 2458 /************************************************************************ 2459 * Allocate a request that will be used to send a BMIC command. Do some 2460 * of the common setup here to avoid duplicating it everywhere else. 2461 */ 2462 static int 2463 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2464 int opcode, void **bufp, size_t bufsize) 2465 { 2466 struct ciss_request *cr; 2467 struct ciss_command *cc; 2468 struct ciss_bmic_cdb *cbc; 2469 void *buf; 2470 int error; 2471 int dataout; 2472 2473 debug_called(2); 2474 2475 cr = NULL; 2476 buf = NULL; 2477 2478 /* 2479 * Get a request. 2480 */ 2481 if ((error = ciss_get_request(sc, &cr)) != 0) 2482 goto out; 2483 2484 /* 2485 * Allocate data storage if requested, determine the data direction. 2486 */ 2487 dataout = 0; 2488 if ((bufsize > 0) && (bufp != NULL)) { 2489 if (*bufp == NULL) { 2490 buf = kmalloc(bufsize, CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2491 } else { 2492 buf = *bufp; 2493 dataout = 1; /* we are given a buffer, so we are writing */ 2494 } 2495 } 2496 2497 /* 2498 * Build a CISS BMIC command to get the logical drive ID. 2499 */ 2500 cr->cr_data = buf; 2501 cr->cr_length = bufsize; 2502 if (!dataout) 2503 cr->cr_flags = CISS_REQ_DATAIN; 2504 2505 cc = cr->cr_cc; 2506 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2507 cc->header.address.physical.bus = 0; 2508 cc->header.address.physical.target = 0; 2509 cc->cdb.cdb_length = sizeof(*cbc); 2510 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2511 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2512 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2513 cc->cdb.timeout = 0; 2514 2515 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2516 bzero(cbc, sizeof(*cbc)); 2517 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2518 cbc->bmic_opcode = opcode; 2519 cbc->size = htons((u_int16_t)bufsize); 2520 2521 out: 2522 if (error) { 2523 if (cr != NULL) 2524 ciss_release_request(cr); 2525 } else { 2526 *crp = cr; 2527 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2528 *bufp = buf; 2529 } 2530 return(error); 2531 } 2532 2533 /************************************************************************ 2534 * Handle a command passed in from userspace. 2535 */ 2536 static int 2537 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2538 { 2539 struct ciss_request *cr; 2540 struct ciss_command *cc; 2541 struct ciss_error_info *ce; 2542 int error = 0; 2543 2544 debug_called(1); 2545 2546 cr = NULL; 2547 2548 /* 2549 * Get a request. 2550 */ 2551 while (ciss_get_request(sc, &cr) != 0) 2552 lksleep(sc, &sc->ciss_lock, 0, "cissREQ", hz); 2553 cc = cr->cr_cc; 2554 2555 /* 2556 * Allocate an in-kernel databuffer if required, copy in user data. 2557 */ 2558 lockmgr(&sc->ciss_lock, LK_RELEASE); 2559 cr->cr_length = ioc->buf_size; 2560 if (ioc->buf_size > 0) { 2561 cr->cr_data = kmalloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK); 2562 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2563 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2564 goto out_unlocked; 2565 } 2566 } 2567 2568 /* 2569 * Build the request based on the user command. 2570 */ 2571 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2572 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2573 2574 /* XXX anything else to populate here? */ 2575 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2576 2577 /* 2578 * Run the command. 2579 */ 2580 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2581 debug(0, "request failed - %d", error); 2582 goto out; 2583 } 2584 2585 /* 2586 * Check to see if the command succeeded. 2587 */ 2588 ce = (struct ciss_error_info *)&(cc->sg[0]); 2589 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2590 bzero(ce, sizeof(*ce)); 2591 2592 /* 2593 * Copy the results back to the user. 2594 */ 2595 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2596 lockmgr(&sc->ciss_lock, LK_RELEASE); 2597 if ((ioc->buf_size > 0) && 2598 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2599 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2600 goto out_unlocked; 2601 } 2602 2603 /* done OK */ 2604 error = 0; 2605 2606 out_unlocked: 2607 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2608 2609 out: 2610 if ((cr != NULL) && (cr->cr_data != NULL)) 2611 kfree(cr->cr_data, CISS_MALLOC_CLASS); 2612 if (cr != NULL) 2613 ciss_release_request(cr); 2614 return(error); 2615 } 2616 2617 /************************************************************************ 2618 * Map a request into bus-visible space, initialise the scatter/gather 2619 * list. 2620 */ 2621 static int 2622 ciss_map_request(struct ciss_request *cr) 2623 { 2624 struct ciss_softc *sc; 2625 int error = 0; 2626 2627 debug_called(2); 2628 2629 sc = cr->cr_sc; 2630 2631 /* check that mapping is necessary */ 2632 if (cr->cr_flags & CISS_REQ_MAPPED) 2633 return(0); 2634 2635 cr->cr_flags |= CISS_REQ_MAPPED; 2636 2637 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2638 BUS_DMASYNC_PREWRITE); 2639 2640 if (cr->cr_data != NULL) { 2641 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2642 cr->cr_data, cr->cr_length, 2643 ciss_request_map_helper, cr, 0); 2644 if (error != 0) 2645 return (error); 2646 } else { 2647 /* 2648 * Post the command to the adapter. 2649 */ 2650 cr->cr_sg_tag = CISS_SG_NONE; 2651 cr->cr_flags |= CISS_REQ_BUSY; 2652 if (sc->ciss_perf) 2653 CISS_TL_PERF_POST_CMD(sc, cr); 2654 else 2655 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2656 } 2657 2658 return(0); 2659 } 2660 2661 static void 2662 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2663 { 2664 struct ciss_command *cc; 2665 struct ciss_request *cr; 2666 struct ciss_softc *sc; 2667 int i; 2668 2669 debug_called(2); 2670 2671 cr = (struct ciss_request *)arg; 2672 sc = cr->cr_sc; 2673 cc = cr->cr_cc; 2674 2675 for (i = 0; i < nseg; i++) { 2676 cc->sg[i].address = segs[i].ds_addr; 2677 cc->sg[i].length = segs[i].ds_len; 2678 cc->sg[i].extension = 0; 2679 } 2680 /* we leave the s/g table entirely within the command */ 2681 cc->header.sg_in_list = nseg; 2682 cc->header.sg_total = nseg; 2683 2684 if (cr->cr_flags & CISS_REQ_DATAIN) 2685 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2686 if (cr->cr_flags & CISS_REQ_DATAOUT) 2687 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2688 2689 if (nseg == 0) 2690 cr->cr_sg_tag = CISS_SG_NONE; 2691 else if (nseg == 1) 2692 cr->cr_sg_tag = CISS_SG_1; 2693 else if (nseg == 2) 2694 cr->cr_sg_tag = CISS_SG_2; 2695 else if (nseg <= 4) 2696 cr->cr_sg_tag = CISS_SG_4; 2697 else if (nseg <= 8) 2698 cr->cr_sg_tag = CISS_SG_8; 2699 else if (nseg <= 16) 2700 cr->cr_sg_tag = CISS_SG_16; 2701 else if (nseg <= 32) 2702 cr->cr_sg_tag = CISS_SG_32; 2703 else 2704 cr->cr_sg_tag = CISS_SG_MAX; 2705 2706 /* 2707 * Post the command to the adapter. 2708 */ 2709 cr->cr_flags |= CISS_REQ_BUSY; 2710 if (sc->ciss_perf) 2711 CISS_TL_PERF_POST_CMD(sc, cr); 2712 else 2713 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2714 } 2715 2716 /************************************************************************ 2717 * Unmap a request from bus-visible space. 2718 */ 2719 static void 2720 ciss_unmap_request(struct ciss_request *cr) 2721 { 2722 struct ciss_softc *sc; 2723 2724 debug_called(2); 2725 2726 sc = cr->cr_sc; 2727 2728 /* check that unmapping is necessary */ 2729 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2730 return; 2731 2732 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2733 BUS_DMASYNC_POSTWRITE); 2734 2735 if (cr->cr_data == NULL) 2736 goto out; 2737 2738 if (cr->cr_flags & CISS_REQ_DATAIN) 2739 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2740 if (cr->cr_flags & CISS_REQ_DATAOUT) 2741 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2742 2743 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2744 out: 2745 cr->cr_flags &= ~CISS_REQ_MAPPED; 2746 } 2747 2748 /************************************************************************ 2749 * Attach the driver to CAM. 2750 * 2751 * We put all the logical drives on a single SCSI bus. 2752 */ 2753 static int 2754 ciss_cam_init(struct ciss_softc *sc) 2755 { 2756 int i, maxbus; 2757 2758 debug_called(1); 2759 2760 /* 2761 * Allocate a devq. We can reuse this for the masked physical 2762 * devices if we decide to export these as well. 2763 */ 2764 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2765 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2766 return(ENOMEM); 2767 } 2768 2769 /* 2770 * Create a SIM. 2771 * 2772 * This naturally wastes a bit of memory. The alternative is to allocate 2773 * and register each bus as it is found, and then track them on a linked 2774 * list. Unfortunately, the driver has a few places where it needs to 2775 * look up the SIM based solely on bus number, and it's unclear whether 2776 * a list traversal would work for these situations. 2777 */ 2778 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2779 CISS_PHYSICAL_BASE); 2780 sc->ciss_cam_sim = kmalloc(maxbus * sizeof(struct cam_sim*), 2781 CISS_MALLOC_CLASS, M_INTWAIT | M_ZERO); 2782 2783 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2784 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2785 "ciss", sc, 2786 device_get_unit(sc->ciss_dev), 2787 &sc->ciss_lock, 2788 2, 2789 sc->ciss_max_requests - 2, 2790 sc->ciss_cam_devq)) == NULL) { 2791 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2792 return(ENOMEM); 2793 } 2794 2795 /* 2796 * Register bus with this SIM. 2797 */ 2798 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2799 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2800 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2801 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2802 lockmgr(&sc->ciss_lock, LK_RELEASE); 2803 return (ENXIO); 2804 } 2805 } 2806 lockmgr(&sc->ciss_lock, LK_RELEASE); 2807 } 2808 2809 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2810 CISS_PHYSICAL_BASE; i++) { 2811 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2812 "ciss", sc, 2813 device_get_unit(sc->ciss_dev), 2814 &sc->ciss_lock, 1, 2815 sc->ciss_max_requests - 2, 2816 sc->ciss_cam_devq)) == NULL) { 2817 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2818 return (ENOMEM); 2819 } 2820 2821 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 2822 if (xpt_bus_register(sc->ciss_cam_sim[i], i) != 0) { 2823 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2824 lockmgr(&sc->ciss_lock, LK_RELEASE); 2825 return (ENXIO); 2826 } 2827 lockmgr(&sc->ciss_lock, LK_RELEASE); 2828 } 2829 2830 /* 2831 * Initiate a rescan of the bus. 2832 */ 2833 ciss_cam_rescan_all(sc); 2834 2835 return(0); 2836 } 2837 2838 /************************************************************************ 2839 * Initiate a rescan of the 'logical devices' SIM 2840 */ 2841 static void 2842 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2843 { 2844 union ccb *ccb; 2845 2846 debug_called(1); 2847 2848 ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 2849 2850 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 2851 cam_sim_path(sc->ciss_cam_sim[bus]), 2852 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2853 ciss_printf(sc, "rescan failed (can't create path)\n"); 2854 kfree(ccb, M_TEMP); 2855 return; 2856 } 2857 2858 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 2859 ccb->ccb_h.func_code = XPT_SCAN_BUS; 2860 ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback; 2861 ccb->crcn.flags = CAM_FLAG_NONE; 2862 xpt_action(ccb); 2863 2864 /* scan is now in progress */ 2865 } 2866 2867 static void 2868 ciss_cam_rescan_all(struct ciss_softc *sc) 2869 { 2870 int i; 2871 2872 /* Rescan the logical buses */ 2873 for (i = 0; i < sc->ciss_max_logical_bus; i++) 2874 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2875 /* Rescan the physical buses */ 2876 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2877 CISS_PHYSICAL_BASE; i++) 2878 ciss_cam_rescan_target(sc, i, CAM_TARGET_WILDCARD); 2879 } 2880 2881 static void 2882 ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 2883 { 2884 xpt_free_path(ccb->ccb_h.path); 2885 kfree(ccb, M_TEMP); 2886 } 2887 2888 /************************************************************************ 2889 * Handle requests coming from CAM 2890 */ 2891 static void 2892 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2893 { 2894 struct ciss_softc *sc; 2895 struct ccb_scsiio *csio; 2896 int bus, target; 2897 int physical; 2898 2899 sc = cam_sim_softc(sim); 2900 bus = cam_sim_bus(sim); 2901 csio = (struct ccb_scsiio *)&ccb->csio; 2902 target = csio->ccb_h.target_id; 2903 physical = CISS_IS_PHYSICAL(bus); 2904 2905 switch (ccb->ccb_h.func_code) { 2906 2907 /* perform SCSI I/O */ 2908 case XPT_SCSI_IO: 2909 if (!ciss_cam_action_io(sim, csio)) 2910 return; 2911 break; 2912 2913 /* perform geometry calculations */ 2914 case XPT_CALC_GEOMETRY: 2915 { 2916 struct ccb_calc_geometry *ccg = &ccb->ccg; 2917 struct ciss_ldrive *ld; 2918 2919 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2920 2921 ld = NULL; 2922 if (!physical) 2923 ld = &sc->ciss_logical[bus][target]; 2924 2925 /* 2926 * Use the cached geometry settings unless the fault tolerance 2927 * is invalid. 2928 */ 2929 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2930 u_int32_t secs_per_cylinder; 2931 2932 ccg->heads = 255; 2933 ccg->secs_per_track = 32; 2934 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2935 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2936 } else { 2937 ccg->heads = ld->cl_geometry.heads; 2938 ccg->secs_per_track = ld->cl_geometry.sectors; 2939 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 2940 } 2941 ccb->ccb_h.status = CAM_REQ_CMP; 2942 break; 2943 } 2944 2945 /* handle path attribute inquiry */ 2946 case XPT_PATH_INQ: 2947 { 2948 struct ccb_pathinq *cpi = &ccb->cpi; 2949 2950 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2951 2952 cpi->version_num = 1; 2953 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 2954 cpi->target_sprt = 0; 2955 cpi->hba_misc = 0; 2956 cpi->max_target = CISS_MAX_LOGICAL; 2957 cpi->max_lun = 0; /* 'logical drive' channel only */ 2958 cpi->initiator_id = CISS_MAX_LOGICAL; 2959 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2960 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 2961 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2962 cpi->unit_number = cam_sim_unit(sim); 2963 cpi->bus_id = cam_sim_bus(sim); 2964 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 2965 cpi->transport = XPORT_SPI; 2966 cpi->transport_version = 2; 2967 cpi->protocol = PROTO_SCSI; 2968 cpi->protocol_version = SCSI_REV_2; 2969 #if 0 /* XXX swildner */ 2970 cpi->maxio = (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE; 2971 #endif 2972 ccb->ccb_h.status = CAM_REQ_CMP; 2973 break; 2974 } 2975 2976 case XPT_GET_TRAN_SETTINGS: 2977 { 2978 struct ccb_trans_settings *cts = &ccb->cts; 2979 #ifdef CISS_DEBUG 2980 int bus, target; 2981 #endif 2982 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 2983 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2984 2985 #ifdef CISS_DEBUG 2986 bus = cam_sim_bus(sim); 2987 target = cts->ccb_h.target_id; 2988 #endif 2989 2990 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 2991 /* disconnect always OK */ 2992 cts->protocol = PROTO_SCSI; 2993 cts->protocol_version = SCSI_REV_2; 2994 cts->transport = XPORT_SPI; 2995 cts->transport_version = 2; 2996 2997 spi->valid = CTS_SPI_VALID_DISC; 2998 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2999 3000 scsi->valid = CTS_SCSI_VALID_TQ; 3001 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3002 3003 cts->ccb_h.status = CAM_REQ_CMP; 3004 break; 3005 } 3006 3007 default: /* we can't do this */ 3008 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3009 ccb->ccb_h.status = CAM_REQ_INVALID; 3010 break; 3011 } 3012 3013 xpt_done(ccb); 3014 } 3015 3016 /************************************************************************ 3017 * Handle a CAM SCSI I/O request. 3018 */ 3019 static int 3020 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3021 { 3022 struct ciss_softc *sc; 3023 int bus, target; 3024 struct ciss_request *cr; 3025 struct ciss_command *cc; 3026 int error; 3027 3028 sc = cam_sim_softc(sim); 3029 bus = cam_sim_bus(sim); 3030 target = csio->ccb_h.target_id; 3031 3032 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3033 3034 /* check that the CDB pointer is not to a physical address */ 3035 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3036 debug(3, " CDB pointer is to physical address"); 3037 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3038 } 3039 3040 /* if there is data transfer, it must be to/from a virtual address */ 3041 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 3042 if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */ 3043 debug(3, " data pointer is to physical address"); 3044 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3045 } 3046 if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */ 3047 debug(3, " data has premature s/g setup"); 3048 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3049 } 3050 } 3051 3052 /* abandon aborted ccbs or those that have failed validation */ 3053 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3054 debug(3, "abandoning CCB due to abort/validation failure"); 3055 return(EINVAL); 3056 } 3057 3058 /* handle emulation of some SCSI commands ourself */ 3059 if (ciss_cam_emulate(sc, csio)) 3060 return(0); 3061 3062 /* 3063 * Get a request to manage this command. If we can't, return the 3064 * ccb, freeze the queue and flag so that we unfreeze it when a 3065 * request completes. 3066 */ 3067 if ((error = ciss_get_request(sc, &cr)) != 0) { 3068 xpt_freeze_simq(sim, 1); 3069 sc->ciss_flags |= CISS_FLAG_BUSY; 3070 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3071 return(error); 3072 } 3073 3074 /* 3075 * Build the command. 3076 */ 3077 cc = cr->cr_cc; 3078 cr->cr_data = csio->data_ptr; 3079 cr->cr_length = csio->dxfer_len; 3080 cr->cr_complete = ciss_cam_complete; 3081 cr->cr_private = csio; 3082 3083 /* 3084 * Target the right logical volume. 3085 */ 3086 if (CISS_IS_PHYSICAL(bus)) 3087 cc->header.address = 3088 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3089 else 3090 cc->header.address = 3091 sc->ciss_logical[bus][target].cl_address; 3092 cc->cdb.cdb_length = csio->cdb_len; 3093 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3094 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3095 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3096 cr->cr_flags = CISS_REQ_DATAOUT; 3097 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3098 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3099 cr->cr_flags = CISS_REQ_DATAIN; 3100 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3101 } else { 3102 cr->cr_flags = 0; 3103 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3104 } 3105 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3106 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3107 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3108 } else { 3109 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3110 } 3111 3112 /* 3113 * Submit the request to the adapter. 3114 * 3115 * Note that this may fail if we're unable to map the request (and 3116 * if we ever learn a transport layer other than simple, may fail 3117 * if the adapter rejects the command). 3118 */ 3119 if ((error = ciss_start(cr)) != 0) { 3120 xpt_freeze_simq(sim, 1); 3121 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3122 if (error == EINPROGRESS) { 3123 error = 0; 3124 } else { 3125 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3126 ciss_release_request(cr); 3127 } 3128 return(error); 3129 } 3130 3131 return(0); 3132 } 3133 3134 /************************************************************************ 3135 * Emulate SCSI commands the adapter doesn't handle as we might like. 3136 */ 3137 static int 3138 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3139 { 3140 int bus, target; 3141 3142 target = csio->ccb_h.target_id; 3143 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3144 3145 if (CISS_IS_PHYSICAL(bus)) { 3146 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3147 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3148 xpt_done((union ccb *)csio); 3149 return(1); 3150 } else 3151 return(0); 3152 } 3153 3154 /* 3155 * Handle requests for volumes that don't exist or are not online. 3156 * A selection timeout is slightly better than an illegal request. 3157 * Other errors might be better. 3158 */ 3159 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3160 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3161 xpt_done((union ccb *)csio); 3162 return(1); 3163 } 3164 3165 /* if we have to fake Synchronise Cache */ 3166 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3167 /* 3168 * If this is a Synchronise Cache command, typically issued when 3169 * a device is closed, flush the adapter and complete now. 3170 */ 3171 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3172 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3173 ciss_flush_adapter(sc); 3174 csio->ccb_h.status |= CAM_REQ_CMP; 3175 xpt_done((union ccb *)csio); 3176 return(1); 3177 } 3178 } 3179 3180 return(0); 3181 } 3182 3183 /************************************************************************ 3184 * Check for possibly-completed commands. 3185 */ 3186 static void 3187 ciss_cam_poll(struct cam_sim *sim) 3188 { 3189 cr_qhead_t qh; 3190 struct ciss_softc *sc = cam_sim_softc(sim); 3191 3192 debug_called(2); 3193 3194 STAILQ_INIT(&qh); 3195 if (sc->ciss_perf) 3196 ciss_perf_done(sc, &qh); 3197 else 3198 ciss_done(sc, &qh); 3199 ciss_complete(sc, &qh); 3200 } 3201 3202 /************************************************************************ 3203 * Handle completion of a command - pass results back through the CCB 3204 */ 3205 static void 3206 ciss_cam_complete(struct ciss_request *cr) 3207 { 3208 struct ciss_softc *sc; 3209 struct ciss_command *cc; 3210 struct ciss_error_info *ce; 3211 struct ccb_scsiio *csio; 3212 int scsi_status; 3213 int command_status; 3214 3215 debug_called(2); 3216 3217 sc = cr->cr_sc; 3218 cc = cr->cr_cc; 3219 ce = (struct ciss_error_info *)&(cc->sg[0]); 3220 csio = (struct ccb_scsiio *)cr->cr_private; 3221 3222 /* 3223 * Extract status values from request. 3224 */ 3225 ciss_report_request(cr, &command_status, &scsi_status); 3226 csio->scsi_status = scsi_status; 3227 3228 /* 3229 * Handle specific SCSI status values. 3230 */ 3231 switch(scsi_status) { 3232 /* no status due to adapter error */ 3233 case -1: 3234 debug(0, "adapter error"); 3235 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3236 break; 3237 3238 /* no status due to command completed OK */ 3239 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3240 debug(2, "SCSI_STATUS_OK"); 3241 csio->ccb_h.status |= CAM_REQ_CMP; 3242 break; 3243 3244 /* check condition, sense data included */ 3245 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3246 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3247 ce->sense_length, ce->residual_count); 3248 bzero(&csio->sense_data, SSD_FULL_SIZE); 3249 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3250 if (csio->sense_len > ce->sense_length) 3251 csio->sense_resid = csio->sense_len - ce->sense_length; 3252 else 3253 csio->sense_resid = 0; 3254 csio->resid = ce->residual_count; 3255 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3256 #ifdef CISS_DEBUG 3257 { 3258 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3259 debug(0, "sense key %x", sns->flags & SSD_KEY); 3260 } 3261 #endif 3262 break; 3263 3264 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3265 debug(0, "SCSI_STATUS_BUSY"); 3266 csio->ccb_h.status |= CAM_SCSI_BUSY; 3267 break; 3268 3269 default: 3270 debug(0, "unknown status 0x%x", csio->scsi_status); 3271 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3272 break; 3273 } 3274 3275 /* handle post-command fixup */ 3276 ciss_cam_complete_fixup(sc, csio); 3277 3278 ciss_release_request(cr); 3279 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3280 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3281 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3282 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3283 else 3284 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3285 } 3286 xpt_done((union ccb *)csio); 3287 } 3288 3289 /******************************************************************************** 3290 * Fix up the result of some commands here. 3291 */ 3292 static void 3293 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3294 { 3295 struct scsi_inquiry_data *inq; 3296 struct ciss_ldrive *cl; 3297 uint8_t *cdb; 3298 int bus, target; 3299 3300 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3301 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3302 if (cdb[0] == INQUIRY && 3303 (cdb[1] & SI_EVPD) == 0 && 3304 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3305 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3306 3307 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3308 target = csio->ccb_h.target_id; 3309 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3310 3311 /* 3312 * Don't let hard drives be seen by the DA driver. They will still be 3313 * attached by the PASS driver. 3314 */ 3315 if (CISS_IS_PHYSICAL(bus)) { 3316 if (SID_TYPE(inq) == T_DIRECT) 3317 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3318 return; 3319 } 3320 3321 cl = &sc->ciss_logical[bus][target]; 3322 3323 padstr(inq->vendor, "COMPAQ", 8); 3324 padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8); 3325 padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16); 3326 } 3327 } 3328 3329 3330 /******************************************************************************** 3331 * Find a peripheral attached at (target) 3332 */ 3333 static struct cam_periph * 3334 ciss_find_periph(struct ciss_softc *sc, int bus, int target) 3335 { 3336 struct cam_periph *periph; 3337 struct cam_path *path; 3338 int status; 3339 3340 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3341 target, 0); 3342 if (status == CAM_REQ_CMP) { 3343 periph = cam_periph_find(path, NULL); 3344 xpt_free_path(path); 3345 } else { 3346 periph = NULL; 3347 } 3348 return(periph); 3349 } 3350 3351 /******************************************************************************** 3352 * Name the device at (target) 3353 * 3354 * XXX is this strictly correct? 3355 */ 3356 static int 3357 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3358 { 3359 struct cam_periph *periph; 3360 3361 if (CISS_IS_PHYSICAL(bus)) 3362 return (0); 3363 if ((periph = ciss_find_periph(sc, bus, target)) != NULL) { 3364 ksprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3365 periph->periph_name, periph->unit_number); 3366 return(0); 3367 } 3368 sc->ciss_logical[bus][target].cl_name[0] = 0; 3369 return(ENOENT); 3370 } 3371 3372 /************************************************************************ 3373 * Periodic status monitoring. 3374 */ 3375 static void 3376 ciss_periodic(void *arg) 3377 { 3378 struct ciss_softc *sc = (struct ciss_softc *)arg; 3379 struct ciss_request *cr = NULL; 3380 struct ciss_command *cc = NULL; 3381 int error = 0; 3382 3383 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 3384 debug_called(1); 3385 3386 /* 3387 * Check the adapter heartbeat. 3388 */ 3389 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3390 sc->ciss_heart_attack++; 3391 debug(0, "adapter heart attack in progress 0x%x/%d", 3392 sc->ciss_heartbeat, sc->ciss_heart_attack); 3393 if (sc->ciss_heart_attack == 3) { 3394 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3395 ciss_disable_adapter(sc); 3396 lockmgr(&sc->ciss_lock, LK_RELEASE); 3397 return; 3398 } 3399 } else { 3400 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3401 sc->ciss_heart_attack = 0; 3402 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3403 } 3404 3405 /* 3406 * Send the NOP message and wait for a response. 3407 */ 3408 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3409 cc = cr->cr_cc; 3410 cr->cr_complete = ciss_nop_complete; 3411 cc->cdb.cdb_length = 1; 3412 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3413 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3414 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3415 cc->cdb.timeout = 0; 3416 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3417 3418 if ((error = ciss_start(cr)) != 0) { 3419 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3420 } 3421 } 3422 3423 /* 3424 * If the notify event request has died for some reason, or has 3425 * not started yet, restart it. 3426 */ 3427 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3428 debug(0, "(re)starting Event Notify chain"); 3429 ciss_notify_event(sc); 3430 } 3431 lockmgr(&sc->ciss_lock, LK_RELEASE); 3432 3433 /* 3434 * Reschedule. 3435 */ 3436 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3437 } 3438 3439 static void 3440 ciss_nop_complete(struct ciss_request *cr) 3441 { 3442 struct ciss_softc *sc; 3443 static int first_time = 1; 3444 3445 sc = cr->cr_sc; 3446 if (ciss_report_request(cr, NULL, NULL) != 0) { 3447 if (first_time == 1) { 3448 first_time = 0; 3449 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3450 } 3451 } 3452 3453 ciss_release_request(cr); 3454 } 3455 3456 /************************************************************************ 3457 * Disable the adapter. 3458 * 3459 * The all requests in completed queue is failed with hardware error. 3460 * This will cause failover in a multipath configuration. 3461 */ 3462 static void 3463 ciss_disable_adapter(struct ciss_softc *sc) 3464 { 3465 cr_qhead_t qh; 3466 struct ciss_request *cr; 3467 struct ciss_command *cc; 3468 struct ciss_error_info *ce; 3469 int i; 3470 3471 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3472 pci_disable_busmaster(sc->ciss_dev); 3473 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3474 3475 for (i = 1; i < sc->ciss_max_requests; i++) { 3476 cr = &sc->ciss_request[i]; 3477 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3478 continue; 3479 3480 cc = cr->cr_cc; 3481 ce = (struct ciss_error_info *)&(cc->sg[0]); 3482 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3483 ciss_enqueue_complete(cr, &qh); 3484 } 3485 3486 for (;;) { 3487 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3488 break; 3489 3490 /* 3491 * If the request has a callback, invoke it. 3492 */ 3493 if (cr->cr_complete != NULL) { 3494 cr->cr_complete(cr); 3495 continue; 3496 } 3497 3498 /* 3499 * If someone is sleeping on this request, wake them up. 3500 */ 3501 if (cr->cr_flags & CISS_REQ_SLEEP) { 3502 cr->cr_flags &= ~CISS_REQ_SLEEP; 3503 wakeup(cr); 3504 continue; 3505 } 3506 } 3507 } 3508 3509 /************************************************************************ 3510 * Request a notification response from the adapter. 3511 * 3512 * If (cr) is NULL, this is the first request of the adapter, so 3513 * reset the adapter's message pointer and start with the oldest 3514 * message available. 3515 */ 3516 static void 3517 ciss_notify_event(struct ciss_softc *sc) 3518 { 3519 struct ciss_request *cr; 3520 struct ciss_command *cc; 3521 struct ciss_notify_cdb *cnc; 3522 int error; 3523 3524 debug_called(1); 3525 3526 cr = sc->ciss_periodic_notify; 3527 3528 /* get a request if we don't already have one */ 3529 if (cr == NULL) { 3530 if ((error = ciss_get_request(sc, &cr)) != 0) { 3531 debug(0, "can't get notify event request"); 3532 goto out; 3533 } 3534 sc->ciss_periodic_notify = cr; 3535 cr->cr_complete = ciss_notify_complete; 3536 debug(1, "acquired request %d", cr->cr_tag); 3537 } 3538 3539 /* 3540 * Get a databuffer if we don't already have one, note that the 3541 * adapter command wants a larger buffer than the actual 3542 * structure. 3543 */ 3544 if (cr->cr_data == NULL) { 3545 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3546 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3547 } 3548 3549 /* re-setup the request's command (since we never release it) XXX overkill*/ 3550 ciss_preen_command(cr); 3551 3552 /* (re)build the notify event command */ 3553 cc = cr->cr_cc; 3554 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3555 cc->header.address.physical.bus = 0; 3556 cc->header.address.physical.target = 0; 3557 3558 cc->cdb.cdb_length = sizeof(*cnc); 3559 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3560 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3561 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3562 cc->cdb.timeout = 0; /* no timeout, we hope */ 3563 3564 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3565 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3566 cnc->opcode = CISS_OPCODE_READ; 3567 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3568 cnc->timeout = 0; /* no timeout, we hope */ 3569 cnc->synchronous = 0; 3570 cnc->ordered = 0; 3571 cnc->seek_to_oldest = 0; 3572 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3573 cnc->new_only = 1; 3574 else 3575 cnc->new_only = 0; 3576 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3577 3578 /* submit the request */ 3579 error = ciss_start(cr); 3580 3581 out: 3582 if (error) { 3583 if (cr != NULL) { 3584 if (cr->cr_data != NULL) 3585 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3586 ciss_release_request(cr); 3587 } 3588 sc->ciss_periodic_notify = NULL; 3589 debug(0, "can't submit notify event request"); 3590 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3591 } else { 3592 debug(1, "notify event submitted"); 3593 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3594 } 3595 } 3596 3597 static void 3598 ciss_notify_complete(struct ciss_request *cr) 3599 { 3600 struct ciss_notify *cn; 3601 struct ciss_softc *sc; 3602 int scsi_status; 3603 int command_status; 3604 debug_called(1); 3605 3606 cn = (struct ciss_notify *)cr->cr_data; 3607 sc = cr->cr_sc; 3608 3609 /* 3610 * Report request results, decode status. 3611 */ 3612 ciss_report_request(cr, &command_status, &scsi_status); 3613 3614 /* 3615 * Abort the chain on a fatal error. 3616 * 3617 * XXX which of these are actually errors? 3618 */ 3619 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3620 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3621 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3622 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3623 ciss_name_command_status(command_status)); 3624 ciss_release_request(cr); 3625 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3626 return; 3627 } 3628 3629 /* 3630 * If the adapter gave us a text message, print it. 3631 */ 3632 if (cn->message[0] != 0) 3633 ciss_printf(sc, "*** %.80s\n", cn->message); 3634 3635 debug(0, "notify event class %d subclass %d detail %d", 3636 cn->class, cn->subclass, cn->detail); 3637 3638 /* 3639 * If the response indicates that the notifier has been aborted, 3640 * release the notifier command. 3641 */ 3642 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3643 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3644 (cn->detail == 1)) { 3645 debug(0, "notifier exiting"); 3646 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3647 ciss_release_request(cr); 3648 sc->ciss_periodic_notify = NULL; 3649 wakeup(&sc->ciss_periodic_notify); 3650 } else { 3651 /* Handle notify events in a kernel thread */ 3652 ciss_enqueue_notify(cr); 3653 sc->ciss_periodic_notify = NULL; 3654 wakeup(&sc->ciss_periodic_notify); 3655 wakeup(&sc->ciss_notify); 3656 } 3657 /* 3658 * Send a new notify event command, if we're not aborting. 3659 */ 3660 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3661 ciss_notify_event(sc); 3662 } 3663 } 3664 3665 /************************************************************************ 3666 * Abort the Notify Event chain. 3667 * 3668 * Note that we can't just abort the command in progress; we have to 3669 * explicitly issue an Abort Notify Event command in order for the 3670 * adapter to clean up correctly. 3671 * 3672 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3673 * the chain will not restart itself. 3674 */ 3675 static int 3676 ciss_notify_abort(struct ciss_softc *sc) 3677 { 3678 struct ciss_request *cr; 3679 struct ciss_command *cc; 3680 struct ciss_notify_cdb *cnc; 3681 int error, command_status, scsi_status; 3682 3683 debug_called(1); 3684 3685 cr = NULL; 3686 error = 0; 3687 3688 /* verify that there's an outstanding command */ 3689 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3690 goto out; 3691 3692 /* get a command to issue the abort with */ 3693 if ((error = ciss_get_request(sc, &cr))) 3694 goto out; 3695 3696 /* get a buffer for the result */ 3697 cr->cr_data = kmalloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_INTWAIT); 3698 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3699 3700 /* build the CDB */ 3701 cc = cr->cr_cc; 3702 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3703 cc->header.address.physical.bus = 0; 3704 cc->header.address.physical.target = 0; 3705 cc->cdb.cdb_length = sizeof(*cnc); 3706 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3707 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3708 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3709 cc->cdb.timeout = 0; /* no timeout, we hope */ 3710 3711 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3712 bzero(cnc, sizeof(*cnc)); 3713 cnc->opcode = CISS_OPCODE_WRITE; 3714 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3715 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3716 3717 ciss_print_request(cr); 3718 3719 /* 3720 * Submit the request and wait for it to complete. 3721 */ 3722 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3723 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3724 goto out; 3725 } 3726 3727 /* 3728 * Check response. 3729 */ 3730 ciss_report_request(cr, &command_status, &scsi_status); 3731 switch(command_status) { 3732 case CISS_CMD_STATUS_SUCCESS: 3733 break; 3734 case CISS_CMD_STATUS_INVALID_COMMAND: 3735 /* 3736 * Some older adapters don't support the CISS version of this 3737 * command. Fall back to using the BMIC version. 3738 */ 3739 error = ciss_notify_abort_bmic(sc); 3740 if (error != 0) 3741 goto out; 3742 break; 3743 3744 case CISS_CMD_STATUS_TARGET_STATUS: 3745 /* 3746 * This can happen if the adapter thinks there wasn't an outstanding 3747 * Notify Event command but we did. We clean up here. 3748 */ 3749 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3750 if (sc->ciss_periodic_notify != NULL) 3751 ciss_release_request(sc->ciss_periodic_notify); 3752 error = 0; 3753 goto out; 3754 } 3755 /* FALLTHROUGH */ 3756 3757 default: 3758 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3759 ciss_name_command_status(command_status)); 3760 error = EIO; 3761 goto out; 3762 } 3763 3764 /* 3765 * Sleep waiting for the notifier command to complete. Note 3766 * that if it doesn't, we may end up in a bad situation, since 3767 * the adapter may deliver it later. Also note that the adapter 3768 * requires the Notify Event command to be cancelled in order to 3769 * maintain internal bookkeeping. 3770 */ 3771 while (sc->ciss_periodic_notify != NULL) { 3772 error = lksleep(&sc->ciss_periodic_notify, &sc->ciss_lock, 0, "cissNEA", hz * 5); 3773 if (error == EWOULDBLOCK) { 3774 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3775 break; 3776 } 3777 } 3778 3779 out: 3780 /* release the cancel request */ 3781 if (cr != NULL) { 3782 if (cr->cr_data != NULL) 3783 kfree(cr->cr_data, CISS_MALLOC_CLASS); 3784 ciss_release_request(cr); 3785 } 3786 if (error == 0) 3787 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3788 return(error); 3789 } 3790 3791 /************************************************************************ 3792 * Abort the Notify Event chain using a BMIC command. 3793 */ 3794 static int 3795 ciss_notify_abort_bmic(struct ciss_softc *sc) 3796 { 3797 struct ciss_request *cr; 3798 int error, command_status; 3799 3800 debug_called(1); 3801 3802 cr = NULL; 3803 error = 0; 3804 3805 /* verify that there's an outstanding command */ 3806 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3807 goto out; 3808 3809 /* 3810 * Build a BMIC command to cancel the Notify on Event command. 3811 * 3812 * Note that we are sending a CISS opcode here. Odd. 3813 */ 3814 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3815 NULL, 0)) != 0) 3816 goto out; 3817 3818 /* 3819 * Submit the request and wait for it to complete. 3820 */ 3821 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3822 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3823 goto out; 3824 } 3825 3826 /* 3827 * Check response. 3828 */ 3829 ciss_report_request(cr, &command_status, NULL); 3830 switch(command_status) { 3831 case CISS_CMD_STATUS_SUCCESS: 3832 break; 3833 default: 3834 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3835 ciss_name_command_status(command_status)); 3836 error = EIO; 3837 goto out; 3838 } 3839 3840 out: 3841 if (cr != NULL) 3842 ciss_release_request(cr); 3843 return(error); 3844 } 3845 3846 /************************************************************************ 3847 * Handle rescanning all the logical volumes when a notify event 3848 * causes the drives to come online or offline. 3849 */ 3850 static void 3851 ciss_notify_rescan_logical(struct ciss_softc *sc) 3852 { 3853 struct ciss_lun_report *cll; 3854 struct ciss_ldrive *ld; 3855 int i, j, ndrives; 3856 3857 /* 3858 * We must rescan all logical volumes to get the right logical 3859 * drive address. 3860 */ 3861 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3862 CISS_MAX_LOGICAL); 3863 if (cll == NULL) 3864 return; 3865 3866 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3867 3868 /* 3869 * Delete any of the drives which were destroyed by the 3870 * firmware. 3871 */ 3872 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3873 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 3874 ld = &sc->ciss_logical[i][j]; 3875 3876 if (ld->cl_update == 0) 3877 continue; 3878 3879 if (ld->cl_status != CISS_LD_ONLINE) { 3880 ciss_cam_rescan_target(sc, i, j); 3881 ld->cl_update = 0; 3882 if (ld->cl_ldrive) 3883 kfree(ld->cl_ldrive, CISS_MALLOC_CLASS); 3884 if (ld->cl_lstatus) 3885 kfree(ld->cl_lstatus, CISS_MALLOC_CLASS); 3886 3887 ld->cl_ldrive = NULL; 3888 ld->cl_lstatus = NULL; 3889 } 3890 } 3891 } 3892 3893 /* 3894 * Scan for new drives. 3895 */ 3896 for (i = 0; i < ndrives; i++) { 3897 int bus, target; 3898 3899 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3900 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3901 ld = &sc->ciss_logical[bus][target]; 3902 3903 if (ld->cl_update == 0) 3904 continue; 3905 3906 ld->cl_update = 0; 3907 ld->cl_address = cll->lun[i]; 3908 ld->cl_controller = &sc->ciss_controllers[bus]; 3909 if (ciss_identify_logical(sc, ld) == 0) { 3910 ciss_cam_rescan_target(sc, bus, target); 3911 } 3912 } 3913 kfree(cll, CISS_MALLOC_CLASS); 3914 } 3915 3916 /************************************************************************ 3917 * Handle a notify event relating to the status of a logical drive. 3918 * 3919 * XXX need to be able to defer some of these to properly handle 3920 * calling the "ID Physical drive" command, unless the 'extended' 3921 * drive IDs are always in BIG_MAP format. 3922 */ 3923 static void 3924 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3925 { 3926 struct ciss_ldrive *ld; 3927 int ostatus, bus, target; 3928 3929 debug_called(2); 3930 3931 bus = cn->device.physical.bus; 3932 target = cn->data.logical_status.logical_drive; 3933 ld = &sc->ciss_logical[bus][target]; 3934 3935 switch (cn->subclass) { 3936 case CISS_NOTIFY_LOGICAL_STATUS: 3937 switch (cn->detail) { 3938 case 0: 3939 ciss_name_device(sc, bus, target); 3940 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 3941 cn->data.logical_status.logical_drive, ld->cl_name, 3942 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 3943 ciss_name_ldrive_status(cn->data.logical_status.new_state), 3944 cn->data.logical_status.spare_state, 3945 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 3946 3947 /* 3948 * Update our idea of the drive's status. 3949 */ 3950 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 3951 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3952 if (ld->cl_lstatus != NULL) 3953 ld->cl_lstatus->status = cn->data.logical_status.new_state; 3954 3955 /* 3956 * Have CAM rescan the drive if its status has changed. 3957 */ 3958 if (ostatus != ld->cl_status) { 3959 ld->cl_update = 1; 3960 ciss_notify_rescan_logical(sc); 3961 } 3962 3963 break; 3964 3965 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 3966 ciss_name_device(sc, bus, target); 3967 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 3968 cn->data.logical_status.logical_drive, ld->cl_name); 3969 ciss_accept_media(sc, ld); 3970 3971 ld->cl_update = 1; 3972 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 3973 ciss_notify_rescan_logical(sc); 3974 break; 3975 3976 case 2: 3977 case 3: 3978 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 3979 cn->data.rebuild_aborted.logical_drive, 3980 ld->cl_name, 3981 (cn->detail == 2) ? "read" : "write"); 3982 break; 3983 } 3984 break; 3985 3986 case CISS_NOTIFY_LOGICAL_ERROR: 3987 if (cn->detail == 0) { 3988 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 3989 cn->data.io_error.logical_drive, 3990 ld->cl_name, 3991 cn->data.io_error.failure_bus, 3992 cn->data.io_error.failure_drive); 3993 /* XXX should we take the drive down at this point, or will we be told? */ 3994 } 3995 break; 3996 3997 case CISS_NOTIFY_LOGICAL_SURFACE: 3998 if (cn->detail == 0) 3999 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4000 cn->data.consistency_completed.logical_drive, 4001 ld->cl_name); 4002 break; 4003 } 4004 } 4005 4006 /************************************************************************ 4007 * Handle a notify event relating to the status of a physical drive. 4008 */ 4009 static void 4010 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4011 { 4012 } 4013 4014 /************************************************************************ 4015 * Handle a notify event relating to the status of a physical drive. 4016 */ 4017 static void 4018 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4019 { 4020 struct ciss_lun_report *cll = NULL; 4021 int bus, target; 4022 4023 switch (cn->subclass) { 4024 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4025 case CISS_NOTIFY_HOTPLUG_NONDISK: 4026 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4027 target = 4028 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4029 4030 if (cn->detail == 0) { 4031 /* 4032 * Mark the device offline so that it'll start producing selection 4033 * timeouts to the upper layer. 4034 */ 4035 if ((bus >= 0) && (target >= 0)) 4036 sc->ciss_physical[bus][target].cp_online = 0; 4037 } else { 4038 /* 4039 * Rescan the physical lun list for new items 4040 */ 4041 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4042 CISS_MAX_PHYSICAL); 4043 if (cll == NULL) { 4044 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4045 break; 4046 } 4047 ciss_filter_physical(sc, cll); 4048 } 4049 break; 4050 4051 default: 4052 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4053 return; 4054 } 4055 4056 if (cll != NULL) 4057 kfree(cll, CISS_MALLOC_CLASS); 4058 } 4059 4060 /************************************************************************ 4061 * Handle deferred processing of notify events. Notify events may need 4062 * sleep which is unsafe during an interrupt. 4063 */ 4064 static void 4065 ciss_notify_thread(void *arg) 4066 { 4067 struct ciss_softc *sc; 4068 struct ciss_request *cr; 4069 struct ciss_notify *cn; 4070 4071 sc = (struct ciss_softc *)arg; 4072 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4073 4074 for (;;) { 4075 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4076 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4077 lksleep(&sc->ciss_notify, &sc->ciss_lock, 0, "idle", 0); 4078 } 4079 4080 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4081 break; 4082 4083 cr = ciss_dequeue_notify(sc); 4084 4085 if (cr == NULL) 4086 panic("cr null"); 4087 cn = (struct ciss_notify *)cr->cr_data; 4088 4089 switch (cn->class) { 4090 case CISS_NOTIFY_HOTPLUG: 4091 ciss_notify_hotplug(sc, cn); 4092 break; 4093 case CISS_NOTIFY_LOGICAL: 4094 ciss_notify_logical(sc, cn); 4095 break; 4096 case CISS_NOTIFY_PHYSICAL: 4097 ciss_notify_physical(sc, cn); 4098 break; 4099 } 4100 4101 ciss_release_request(cr); 4102 4103 } 4104 sc->ciss_notify_thread = NULL; 4105 wakeup(&sc->ciss_notify_thread); 4106 4107 lockmgr(&sc->ciss_lock, LK_RELEASE); 4108 kthread_exit(); 4109 } 4110 4111 /************************************************************************ 4112 * Start the notification kernel thread. 4113 */ 4114 static void 4115 ciss_spawn_notify_thread(struct ciss_softc *sc) 4116 { 4117 4118 if (kthread_create((void(*)(void *))ciss_notify_thread, sc, 4119 &sc->ciss_notify_thread, "ciss_notify%d", 4120 device_get_unit(sc->ciss_dev))) 4121 panic("Could not create notify thread\n"); 4122 } 4123 4124 /************************************************************************ 4125 * Kill the notification kernel thread. 4126 */ 4127 static void 4128 ciss_kill_notify_thread(struct ciss_softc *sc) 4129 { 4130 4131 if (sc->ciss_notify_thread == NULL) 4132 return; 4133 4134 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4135 wakeup(&sc->ciss_notify); 4136 lksleep(&sc->ciss_notify_thread, &sc->ciss_lock, 0, "thtrm", 0); 4137 } 4138 4139 /************************************************************************ 4140 * Print a request. 4141 */ 4142 static void 4143 ciss_print_request(struct ciss_request *cr) 4144 { 4145 struct ciss_softc *sc; 4146 struct ciss_command *cc; 4147 int i; 4148 char hexstr[HEX_NCPYLEN(CISS_CDB_BUFFER_SIZE)]; 4149 4150 sc = cr->cr_sc; 4151 cc = cr->cr_cc; 4152 4153 ciss_printf(sc, "REQUEST @ %p\n", cr); 4154 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4155 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4156 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4157 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4158 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4159 switch(cc->header.address.mode.mode) { 4160 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4161 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4162 ciss_printf(sc, " physical bus %d target %d\n", 4163 cc->header.address.physical.bus, cc->header.address.physical.target); 4164 break; 4165 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4166 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4167 break; 4168 } 4169 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4170 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4171 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4172 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4173 cc->cdb.cdb_length, 4174 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4175 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4176 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4177 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4178 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4179 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4180 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4181 ciss_printf(sc, " %s\n", hexncpy(&cc->cdb.cdb[0], cc->cdb.cdb_length, 4182 hexstr, HEX_NCPYLEN(cc->cdb.cdb_length), " ")); 4183 4184 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4185 /* XXX print error info */ 4186 } else { 4187 /* since we don't use chained s/g, don't support it here */ 4188 for (i = 0; i < cc->header.sg_in_list; i++) { 4189 if ((i % 4) == 0) 4190 ciss_printf(sc, " "); 4191 kprintf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4192 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4193 kprintf("\n"); 4194 } 4195 } 4196 } 4197 4198 /************************************************************************ 4199 * Print information about the status of a logical drive. 4200 */ 4201 static void 4202 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4203 { 4204 int bus, target, i; 4205 4206 if (ld->cl_lstatus == NULL) { 4207 kprintf("does not exist\n"); 4208 return; 4209 } 4210 4211 /* print drive status */ 4212 switch(ld->cl_lstatus->status) { 4213 case CISS_LSTATUS_OK: 4214 kprintf("online\n"); 4215 break; 4216 case CISS_LSTATUS_INTERIM_RECOVERY: 4217 kprintf("in interim recovery mode\n"); 4218 break; 4219 case CISS_LSTATUS_READY_RECOVERY: 4220 kprintf("ready to begin recovery\n"); 4221 break; 4222 case CISS_LSTATUS_RECOVERING: 4223 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4224 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4225 kprintf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4226 bus, target, ld->cl_lstatus->blocks_to_recover); 4227 break; 4228 case CISS_LSTATUS_EXPANDING: 4229 kprintf("being expanded, %u blocks remaining\n", 4230 ld->cl_lstatus->blocks_to_recover); 4231 break; 4232 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4233 kprintf("queued for expansion\n"); 4234 break; 4235 case CISS_LSTATUS_FAILED: 4236 kprintf("queued for expansion\n"); 4237 break; 4238 case CISS_LSTATUS_WRONG_PDRIVE: 4239 kprintf("wrong physical drive inserted\n"); 4240 break; 4241 case CISS_LSTATUS_MISSING_PDRIVE: 4242 kprintf("missing a needed physical drive\n"); 4243 break; 4244 case CISS_LSTATUS_BECOMING_READY: 4245 kprintf("becoming ready\n"); 4246 break; 4247 } 4248 4249 /* print failed physical drives */ 4250 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4251 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4252 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4253 if (bus == -1) 4254 continue; 4255 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4256 ld->cl_lstatus->drive_failure_map[i]); 4257 } 4258 } 4259 4260 #ifdef CISS_DEBUG 4261 #include "opt_ddb.h" 4262 #ifdef DDB 4263 #include <ddb/ddb.h> 4264 /************************************************************************ 4265 * Print information about the controller/driver. 4266 */ 4267 static void 4268 ciss_print_adapter(struct ciss_softc *sc) 4269 { 4270 int i, j; 4271 4272 ciss_printf(sc, "ADAPTER:\n"); 4273 for (i = 0; i < CISSQ_COUNT; i++) { 4274 ciss_printf(sc, "%s %d/%d\n", 4275 i == 0 ? "free" : 4276 i == 1 ? "busy" : "complete", 4277 sc->ciss_qstat[i].q_length, 4278 sc->ciss_qstat[i].q_max); 4279 } 4280 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4281 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4282 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4283 4284 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4285 for (j = 0; j < CISS_MAX_LOGICAL; j++) { 4286 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4287 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4288 } 4289 } 4290 4291 /* XXX Should physical drives be printed out here? */ 4292 4293 for (i = 1; i < sc->ciss_max_requests; i++) 4294 ciss_print_request(sc->ciss_request + i); 4295 } 4296 4297 /* DDB hook */ 4298 DB_COMMAND(ciss_prt, db_ciss_prt) 4299 { 4300 struct ciss_softc *sc; 4301 4302 sc = devclass_get_softc(devclass_find("ciss"), 0); 4303 if (sc == NULL) { 4304 kprintf("no ciss controllers\n"); 4305 } else { 4306 ciss_print_adapter(sc); 4307 } 4308 } 4309 #endif 4310 #endif 4311 4312 /************************************************************************ 4313 * Return a name for a logical drive status value. 4314 */ 4315 static const char * 4316 ciss_name_ldrive_status(int status) 4317 { 4318 switch (status) { 4319 case CISS_LSTATUS_OK: 4320 return("OK"); 4321 case CISS_LSTATUS_FAILED: 4322 return("failed"); 4323 case CISS_LSTATUS_NOT_CONFIGURED: 4324 return("not configured"); 4325 case CISS_LSTATUS_INTERIM_RECOVERY: 4326 return("interim recovery"); 4327 case CISS_LSTATUS_READY_RECOVERY: 4328 return("ready for recovery"); 4329 case CISS_LSTATUS_RECOVERING: 4330 return("recovering"); 4331 case CISS_LSTATUS_WRONG_PDRIVE: 4332 return("wrong physical drive inserted"); 4333 case CISS_LSTATUS_MISSING_PDRIVE: 4334 return("missing physical drive"); 4335 case CISS_LSTATUS_EXPANDING: 4336 return("expanding"); 4337 case CISS_LSTATUS_BECOMING_READY: 4338 return("becoming ready"); 4339 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4340 return("queued for expansion"); 4341 } 4342 return("unknown status"); 4343 } 4344 4345 /************************************************************************ 4346 * Return an online/offline/nonexistent value for a logical drive 4347 * status value. 4348 */ 4349 static int 4350 ciss_decode_ldrive_status(int status) 4351 { 4352 switch(status) { 4353 case CISS_LSTATUS_NOT_CONFIGURED: 4354 return(CISS_LD_NONEXISTENT); 4355 4356 case CISS_LSTATUS_OK: 4357 case CISS_LSTATUS_INTERIM_RECOVERY: 4358 case CISS_LSTATUS_READY_RECOVERY: 4359 case CISS_LSTATUS_RECOVERING: 4360 case CISS_LSTATUS_EXPANDING: 4361 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4362 return(CISS_LD_ONLINE); 4363 4364 case CISS_LSTATUS_FAILED: 4365 case CISS_LSTATUS_WRONG_PDRIVE: 4366 case CISS_LSTATUS_MISSING_PDRIVE: 4367 case CISS_LSTATUS_BECOMING_READY: 4368 default: 4369 return(CISS_LD_OFFLINE); 4370 } 4371 } 4372 4373 4374 /************************************************************************ 4375 * Return a name for a logical drive's organisation. 4376 */ 4377 static const char * 4378 ciss_name_ldrive_org(int org) 4379 { 4380 switch(org) { 4381 case CISS_LDRIVE_RAID0: 4382 return("RAID 0"); 4383 case CISS_LDRIVE_RAID1: 4384 return("RAID 1(1+0)"); 4385 case CISS_LDRIVE_RAID4: 4386 return("RAID 4"); 4387 case CISS_LDRIVE_RAID5: 4388 return("RAID 5"); 4389 case CISS_LDRIVE_RAID51: 4390 return("RAID 5+1"); 4391 case CISS_LDRIVE_RAIDADG: 4392 return("RAID ADG"); 4393 } 4394 return("unknown"); 4395 } 4396 4397 /************************************************************************ 4398 * Return a name for a command status value. 4399 */ 4400 static const char * 4401 ciss_name_command_status(int status) 4402 { 4403 switch(status) { 4404 case CISS_CMD_STATUS_SUCCESS: 4405 return("success"); 4406 case CISS_CMD_STATUS_TARGET_STATUS: 4407 return("target status"); 4408 case CISS_CMD_STATUS_DATA_UNDERRUN: 4409 return("data underrun"); 4410 case CISS_CMD_STATUS_DATA_OVERRUN: 4411 return("data overrun"); 4412 case CISS_CMD_STATUS_INVALID_COMMAND: 4413 return("invalid command"); 4414 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4415 return("protocol error"); 4416 case CISS_CMD_STATUS_HARDWARE_ERROR: 4417 return("hardware error"); 4418 case CISS_CMD_STATUS_CONNECTION_LOST: 4419 return("connection lost"); 4420 case CISS_CMD_STATUS_ABORTED: 4421 return("aborted"); 4422 case CISS_CMD_STATUS_ABORT_FAILED: 4423 return("abort failed"); 4424 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4425 return("unsolicited abort"); 4426 case CISS_CMD_STATUS_TIMEOUT: 4427 return("timeout"); 4428 case CISS_CMD_STATUS_UNABORTABLE: 4429 return("unabortable"); 4430 } 4431 return("unknown status"); 4432 } 4433 4434 /************************************************************************ 4435 * Handle an open on the control device. 4436 */ 4437 static int 4438 ciss_open(struct dev_open_args *ap) 4439 { 4440 cdev_t dev = ap->a_head.a_dev; 4441 struct ciss_softc *sc; 4442 4443 debug_called(1); 4444 4445 sc = (struct ciss_softc *)dev->si_drv1; 4446 4447 /* we might want to veto if someone already has us open */ 4448 4449 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4450 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4451 lockmgr(&sc->ciss_lock, LK_RELEASE); 4452 return(0); 4453 } 4454 4455 /************************************************************************ 4456 * Handle the last close on the control device. 4457 */ 4458 static int 4459 ciss_close(struct dev_close_args *ap) 4460 { 4461 cdev_t dev = ap->a_head.a_dev; 4462 struct ciss_softc *sc; 4463 4464 debug_called(1); 4465 4466 sc = (struct ciss_softc *)dev->si_drv1; 4467 4468 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4469 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4470 lockmgr(&sc->ciss_lock, LK_RELEASE); 4471 return (0); 4472 } 4473 4474 /******************************************************************************** 4475 * Handle adapter-specific control operations. 4476 * 4477 * Note that the API here is compatible with the Linux driver, in order to 4478 * simplify the porting of Compaq's userland tools. 4479 */ 4480 static int 4481 ciss_ioctl(struct dev_ioctl_args *ap) 4482 { 4483 caddr_t addr = ap->a_data; 4484 cdev_t dev = ap->a_head.a_dev; 4485 u_long cmd = ap->a_cmd; 4486 struct ciss_softc *sc; 4487 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4488 #ifdef __x86_64__ 4489 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4490 IOCTL_Command_struct ioc_swab; 4491 #endif 4492 int error; 4493 4494 debug_called(1); 4495 4496 sc = (struct ciss_softc *)dev->si_drv1; 4497 error = 0; 4498 lockmgr(&sc->ciss_lock, LK_EXCLUSIVE); 4499 4500 switch(cmd) { 4501 case CCISS_GETQSTATS: 4502 { 4503 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4504 4505 switch (cr->cs_item) { 4506 case CISSQ_FREE: 4507 case CISSQ_NOTIFY: 4508 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4509 sizeof(struct ciss_qstat)); 4510 break; 4511 default: 4512 error = ENOIOCTL; 4513 break; 4514 } 4515 4516 break; 4517 } 4518 4519 case CCISS_GETPCIINFO: 4520 { 4521 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4522 4523 pis->bus = pci_get_bus(sc->ciss_dev); 4524 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4525 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4526 pci_get_subdevice(sc->ciss_dev); 4527 4528 break; 4529 } 4530 4531 case CCISS_GETINTINFO: 4532 { 4533 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4534 4535 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4536 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4537 4538 break; 4539 } 4540 4541 case CCISS_SETINTINFO: 4542 { 4543 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4544 4545 if ((cis->delay == 0) && (cis->count == 0)) { 4546 error = EINVAL; 4547 break; 4548 } 4549 4550 /* 4551 * XXX apparently this is only safe if the controller is idle, 4552 * we should suspend it before doing this. 4553 */ 4554 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4555 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4556 4557 if (ciss_update_config(sc)) 4558 error = EIO; 4559 4560 /* XXX resume the controller here */ 4561 break; 4562 } 4563 4564 case CCISS_GETNODENAME: 4565 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4566 sizeof(NodeName_type)); 4567 break; 4568 4569 case CCISS_SETNODENAME: 4570 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4571 sizeof(NodeName_type)); 4572 if (ciss_update_config(sc)) 4573 error = EIO; 4574 break; 4575 4576 case CCISS_GETHEARTBEAT: 4577 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4578 break; 4579 4580 case CCISS_GETBUSTYPES: 4581 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4582 break; 4583 4584 case CCISS_GETFIRMVER: 4585 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4586 sizeof(FirmwareVer_type)); 4587 break; 4588 4589 case CCISS_GETDRIVERVER: 4590 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4591 break; 4592 4593 case CCISS_REVALIDVOLS: 4594 /* 4595 * This is a bit ugly; to do it "right" we really need 4596 * to find any disks that have changed, kick CAM off them, 4597 * then rescan only these disks. It'd be nice if they 4598 * a) told us which disk(s) they were going to play with, 4599 * and b) which ones had arrived. 8( 4600 */ 4601 break; 4602 4603 #ifdef __x86_64__ 4604 case CCISS_PASSTHRU32: 4605 ioc_swab.LUN_info = ioc32->LUN_info; 4606 ioc_swab.Request = ioc32->Request; 4607 ioc_swab.error_info = ioc32->error_info; 4608 ioc_swab.buf_size = ioc32->buf_size; 4609 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4610 ioc = &ioc_swab; 4611 /* FALLTHROUGH */ 4612 #endif 4613 4614 case CCISS_PASSTHRU: 4615 error = ciss_user_command(sc, ioc); 4616 break; 4617 4618 default: 4619 debug(0, "unknown ioctl 0x%lx", cmd); 4620 4621 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4622 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4623 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4624 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4625 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4626 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4627 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4628 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4629 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4630 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4631 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4632 4633 error = ENOIOCTL; 4634 break; 4635 } 4636 4637 lockmgr(&sc->ciss_lock, LK_RELEASE); 4638 return(error); 4639 } 4640