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