ciss.c revision 275982
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: stable/10/sys/dev/ciss/ciss.c 275982 2014-12-21 03:06:11Z smh $ 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 88#include <cam/cam.h> 89#include <cam/cam_ccb.h> 90#include <cam/cam_periph.h> 91#include <cam/cam_sim.h> 92#include <cam/cam_xpt_sim.h> 93#include <cam/scsi/scsi_all.h> 94#include <cam/scsi/scsi_message.h> 95 96#include <machine/bus.h> 97#include <machine/endian.h> 98#include <machine/resource.h> 99#include <sys/rman.h> 100 101#include <dev/pci/pcireg.h> 102#include <dev/pci/pcivar.h> 103 104#include <dev/ciss/cissreg.h> 105#include <dev/ciss/cissio.h> 106#include <dev/ciss/cissvar.h> 107 108static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 109 "ciss internal data buffers"); 110 111/* pci interface */ 112static int ciss_lookup(device_t dev); 113static int ciss_probe(device_t dev); 114static int ciss_attach(device_t dev); 115static int ciss_detach(device_t dev); 116static int ciss_shutdown(device_t dev); 117 118/* (de)initialisation functions, control wrappers */ 119static int ciss_init_pci(struct ciss_softc *sc); 120static int ciss_setup_msix(struct ciss_softc *sc); 121static int ciss_init_perf(struct ciss_softc *sc); 122static int ciss_wait_adapter(struct ciss_softc *sc); 123static int ciss_flush_adapter(struct ciss_softc *sc); 124static int ciss_init_requests(struct ciss_softc *sc); 125static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 126 int nseg, int error); 127static int ciss_identify_adapter(struct ciss_softc *sc); 128static int ciss_init_logical(struct ciss_softc *sc); 129static int ciss_init_physical(struct ciss_softc *sc); 130static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 131static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 132static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 133static int ciss_update_config(struct ciss_softc *sc); 134static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 135static void ciss_init_sysctl(struct ciss_softc *sc); 136static void ciss_soft_reset(struct ciss_softc *sc); 137static void ciss_free(struct ciss_softc *sc); 138static void ciss_spawn_notify_thread(struct ciss_softc *sc); 139static void ciss_kill_notify_thread(struct ciss_softc *sc); 140 141/* request submission/completion */ 142static int ciss_start(struct ciss_request *cr); 143static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 144static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 145static void ciss_intr(void *arg); 146static void ciss_perf_intr(void *arg); 147static void ciss_perf_msi_intr(void *arg); 148static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 149static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 150static int ciss_synch_request(struct ciss_request *cr, int timeout); 151static int ciss_poll_request(struct ciss_request *cr, int timeout); 152static int ciss_wait_request(struct ciss_request *cr, int timeout); 153#if 0 154static int ciss_abort_request(struct ciss_request *cr); 155#endif 156 157/* request queueing */ 158static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 159static void ciss_preen_command(struct ciss_request *cr); 160static void ciss_release_request(struct ciss_request *cr); 161 162/* request helpers */ 163static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 164 int opcode, void **bufp, size_t bufsize); 165static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 166 167/* DMA map/unmap */ 168static int ciss_map_request(struct ciss_request *cr); 169static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 170 int nseg, int error); 171static void ciss_unmap_request(struct ciss_request *cr); 172 173/* CAM interface */ 174static int ciss_cam_init(struct ciss_softc *sc); 175static void ciss_cam_rescan_target(struct ciss_softc *sc, 176 int bus, int target); 177static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 178static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 179static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 180static void ciss_cam_poll(struct cam_sim *sim); 181static void ciss_cam_complete(struct ciss_request *cr); 182static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 183static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 184 185/* periodic status monitoring */ 186static void ciss_periodic(void *arg); 187static void ciss_nop_complete(struct ciss_request *cr); 188static void ciss_disable_adapter(struct ciss_softc *sc); 189static void ciss_notify_event(struct ciss_softc *sc); 190static void ciss_notify_complete(struct ciss_request *cr); 191static int ciss_notify_abort(struct ciss_softc *sc); 192static int ciss_notify_abort_bmic(struct ciss_softc *sc); 193static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 194static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 195static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 196 197/* debugging output */ 198static void ciss_print_request(struct ciss_request *cr); 199static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 200static const char *ciss_name_ldrive_status(int status); 201static int ciss_decode_ldrive_status(int status); 202static const char *ciss_name_ldrive_org(int org); 203static const char *ciss_name_command_status(int status); 204 205/* 206 * PCI bus interface. 207 */ 208static device_method_t ciss_methods[] = { 209 /* Device interface */ 210 DEVMETHOD(device_probe, ciss_probe), 211 DEVMETHOD(device_attach, ciss_attach), 212 DEVMETHOD(device_detach, ciss_detach), 213 DEVMETHOD(device_shutdown, ciss_shutdown), 214 { 0, 0 } 215}; 216 217static driver_t ciss_pci_driver = { 218 "ciss", 219 ciss_methods, 220 sizeof(struct ciss_softc) 221}; 222 223static devclass_t ciss_devclass; 224DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 225MODULE_DEPEND(ciss, cam, 1, 1, 1); 226MODULE_DEPEND(ciss, pci, 1, 1, 1); 227 228/* 229 * Control device interface. 230 */ 231static d_open_t ciss_open; 232static d_close_t ciss_close; 233static d_ioctl_t ciss_ioctl; 234 235static struct cdevsw ciss_cdevsw = { 236 .d_version = D_VERSION, 237 .d_flags = 0, 238 .d_open = ciss_open, 239 .d_close = ciss_close, 240 .d_ioctl = ciss_ioctl, 241 .d_name = "ciss", 242}; 243 244/* 245 * This tunable can be set at boot time and controls whether physical devices 246 * that are marked hidden by the firmware should be exposed anyways. 247 */ 248static unsigned int ciss_expose_hidden_physical = 0; 249TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 250 251static unsigned int ciss_nop_message_heartbeat = 0; 252TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 253 254/* 255 * This tunable can force a particular transport to be used: 256 * <= 0 : use default 257 * 1 : force simple 258 * 2 : force performant 259 */ 260static int ciss_force_transport = 0; 261TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 262 263/* 264 * This tunable can force a particular interrupt delivery method to be used: 265 * <= 0 : use default 266 * 1 : force INTx 267 * 2 : force MSIX 268 */ 269static int ciss_force_interrupt = 0; 270TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 271 272/************************************************************************ 273 * CISS adapters amazingly don't have a defined programming interface 274 * value. (One could say some very despairing things about PCI and 275 * people just not getting the general idea.) So we are forced to 276 * stick with matching against subvendor/subdevice, and thus have to 277 * be updated for every new CISS adapter that appears. 278 */ 279#define CISS_BOARD_UNKNWON 0 280#define CISS_BOARD_SA5 1 281#define CISS_BOARD_SA5B 2 282#define CISS_BOARD_NOMSI (1<<4) 283#define CISS_BOARD_SIMPLE (1<<5) 284 285static struct 286{ 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291} ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 293 "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 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 340 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 341 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 342 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 343 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 344 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 345 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 346 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 347 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 348 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array TBD" }, 349 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array TBD" }, 350 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array TBD" }, 351 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array TBD" }, 352 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array TBD" }, 353 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array TBD" }, 354 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array TBD" }, 355 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array TBD" }, 356 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array TBD" }, 357 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array TBD" }, 358 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array TBD" }, 359 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array TBD" }, 360 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array TBD" }, 361 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array TBD" }, 362 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array TBD" }, 363 { 0, 0, 0, NULL } 364}; 365 366/************************************************************************ 367 * Find a match for the device in our list of known adapters. 368 */ 369static int 370ciss_lookup(device_t dev) 371{ 372 int i; 373 374 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 375 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 376 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 377 return(i); 378 } 379 return(-1); 380} 381 382/************************************************************************ 383 * Match a known CISS adapter. 384 */ 385static int 386ciss_probe(device_t dev) 387{ 388 int i; 389 390 i = ciss_lookup(dev); 391 if (i != -1) { 392 device_set_desc(dev, ciss_vendor_data[i].desc); 393 return(BUS_PROBE_DEFAULT); 394 } 395 return(ENOENT); 396} 397 398/************************************************************************ 399 * Attach the driver to this adapter. 400 */ 401static int 402ciss_attach(device_t dev) 403{ 404 struct ciss_softc *sc; 405 int error; 406 407 debug_called(1); 408 409#ifdef CISS_DEBUG 410 /* print structure/union sizes */ 411 debug_struct(ciss_command); 412 debug_struct(ciss_header); 413 debug_union(ciss_device_address); 414 debug_struct(ciss_cdb); 415 debug_struct(ciss_report_cdb); 416 debug_struct(ciss_notify_cdb); 417 debug_struct(ciss_notify); 418 debug_struct(ciss_message_cdb); 419 debug_struct(ciss_error_info_pointer); 420 debug_struct(ciss_error_info); 421 debug_struct(ciss_sg_entry); 422 debug_struct(ciss_config_table); 423 debug_struct(ciss_bmic_cdb); 424 debug_struct(ciss_bmic_id_ldrive); 425 debug_struct(ciss_bmic_id_lstatus); 426 debug_struct(ciss_bmic_id_table); 427 debug_struct(ciss_bmic_id_pdrive); 428 debug_struct(ciss_bmic_blink_pdrive); 429 debug_struct(ciss_bmic_flush_cache); 430 debug_const(CISS_MAX_REQUESTS); 431 debug_const(CISS_MAX_LOGICAL); 432 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 433 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 434 debug_const(CISS_COMMAND_ALLOC_SIZE); 435 debug_const(CISS_COMMAND_SG_LENGTH); 436 437 debug_type(cciss_pci_info_struct); 438 debug_type(cciss_coalint_struct); 439 debug_type(cciss_coalint_struct); 440 debug_type(NodeName_type); 441 debug_type(NodeName_type); 442 debug_type(Heartbeat_type); 443 debug_type(BusTypes_type); 444 debug_type(FirmwareVer_type); 445 debug_type(DriverVer_type); 446 debug_type(IOCTL_Command_struct); 447#endif 448 449 sc = device_get_softc(dev); 450 sc->ciss_dev = dev; 451 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 452 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 453 454 /* 455 * Do PCI-specific init. 456 */ 457 if ((error = ciss_init_pci(sc)) != 0) 458 goto out; 459 460 /* 461 * Initialise driver queues. 462 */ 463 ciss_initq_free(sc); 464 ciss_initq_notify(sc); 465 466 /* 467 * Initalize device sysctls. 468 */ 469 ciss_init_sysctl(sc); 470 471 /* 472 * Initialise command/request pool. 473 */ 474 if ((error = ciss_init_requests(sc)) != 0) 475 goto out; 476 477 /* 478 * Get adapter information. 479 */ 480 if ((error = ciss_identify_adapter(sc)) != 0) 481 goto out; 482 483 /* 484 * Find all the physical devices. 485 */ 486 if ((error = ciss_init_physical(sc)) != 0) 487 goto out; 488 489 /* 490 * Build our private table of logical devices. 491 */ 492 if ((error = ciss_init_logical(sc)) != 0) 493 goto out; 494 495 /* 496 * Enable interrupts so that the CAM scan can complete. 497 */ 498 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 499 500 /* 501 * Initialise the CAM interface. 502 */ 503 if ((error = ciss_cam_init(sc)) != 0) 504 goto out; 505 506 /* 507 * Start the heartbeat routine and event chain. 508 */ 509 ciss_periodic(sc); 510 511 /* 512 * Create the control device. 513 */ 514 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 515 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 516 "ciss%d", device_get_unit(sc->ciss_dev)); 517 sc->ciss_dev_t->si_drv1 = sc; 518 519 /* 520 * The adapter is running; synchronous commands can now sleep 521 * waiting for an interrupt to signal completion. 522 */ 523 sc->ciss_flags |= CISS_FLAG_RUNNING; 524 525 ciss_spawn_notify_thread(sc); 526 527 error = 0; 528 out: 529 if (error != 0) { 530 /* ciss_free() expects the mutex to be held */ 531 mtx_lock(&sc->ciss_mtx); 532 ciss_free(sc); 533 } 534 return(error); 535} 536 537/************************************************************************ 538 * Detach the driver from this adapter. 539 */ 540static int 541ciss_detach(device_t dev) 542{ 543 struct ciss_softc *sc = device_get_softc(dev); 544 545 debug_called(1); 546 547 mtx_lock(&sc->ciss_mtx); 548 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 549 mtx_unlock(&sc->ciss_mtx); 550 return (EBUSY); 551 } 552 553 /* flush adapter cache */ 554 ciss_flush_adapter(sc); 555 556 /* release all resources. The mutex is released and freed here too. */ 557 ciss_free(sc); 558 559 return(0); 560} 561 562/************************************************************************ 563 * Prepare adapter for system shutdown. 564 */ 565static int 566ciss_shutdown(device_t dev) 567{ 568 struct ciss_softc *sc = device_get_softc(dev); 569 570 debug_called(1); 571 572 mtx_lock(&sc->ciss_mtx); 573 /* flush adapter cache */ 574 ciss_flush_adapter(sc); 575 576 if (sc->ciss_soft_reset) 577 ciss_soft_reset(sc); 578 mtx_unlock(&sc->ciss_mtx); 579 580 return(0); 581} 582 583static void 584ciss_init_sysctl(struct ciss_softc *sc) 585{ 586 587 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 588 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 589 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 590} 591 592/************************************************************************ 593 * Perform PCI-specific attachment actions. 594 */ 595static int 596ciss_init_pci(struct ciss_softc *sc) 597{ 598 uintptr_t cbase, csize, cofs; 599 uint32_t method, supported_methods; 600 int error, sqmask, i; 601 void *intr; 602 603 debug_called(1); 604 605 /* 606 * Work out adapter type. 607 */ 608 i = ciss_lookup(sc->ciss_dev); 609 if (i < 0) { 610 ciss_printf(sc, "unknown adapter type\n"); 611 return (ENXIO); 612 } 613 614 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 615 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 616 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 617 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 618 } else { 619 /* 620 * XXX Big hammer, masks/unmasks all possible interrupts. This should 621 * work on all hardware variants. Need to add code to handle the 622 * "controller crashed" interupt bit that this unmasks. 623 */ 624 sqmask = ~0; 625 } 626 627 /* 628 * Allocate register window first (we need this to find the config 629 * struct). 630 */ 631 error = ENXIO; 632 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 633 if ((sc->ciss_regs_resource = 634 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 635 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 636 ciss_printf(sc, "can't allocate register window\n"); 637 return(ENXIO); 638 } 639 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 640 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 641 642 /* 643 * Find the BAR holding the config structure. If it's not the one 644 * we already mapped for registers, map it too. 645 */ 646 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 647 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 648 if ((sc->ciss_cfg_resource = 649 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 650 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 651 ciss_printf(sc, "can't allocate config window\n"); 652 return(ENXIO); 653 } 654 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 655 csize = rman_get_end(sc->ciss_cfg_resource) - 656 rman_get_start(sc->ciss_cfg_resource) + 1; 657 } else { 658 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 659 csize = rman_get_end(sc->ciss_regs_resource) - 660 rman_get_start(sc->ciss_regs_resource) + 1; 661 } 662 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 663 664 /* 665 * Use the base/size/offset values we just calculated to 666 * sanity-check the config structure. If it's OK, point to it. 667 */ 668 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 669 ciss_printf(sc, "config table outside window\n"); 670 return(ENXIO); 671 } 672 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 673 debug(1, "config struct at %p", sc->ciss_cfg); 674 675 /* 676 * Calculate the number of request structures/commands we are 677 * going to provide for this adapter. 678 */ 679 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 680 681 /* 682 * Validate the config structure. If we supported other transport 683 * methods, we could select amongst them at this point in time. 684 */ 685 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 686 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 687 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 688 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 689 return(ENXIO); 690 } 691 692 /* 693 * Select the mode of operation, prefer Performant. 694 */ 695 if (!(sc->ciss_cfg->supported_methods & 696 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 697 ciss_printf(sc, "No supported transport layers: 0x%x\n", 698 sc->ciss_cfg->supported_methods); 699 } 700 701 switch (ciss_force_transport) { 702 case 1: 703 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 704 break; 705 case 2: 706 supported_methods = CISS_TRANSPORT_METHOD_PERF; 707 break; 708 default: 709 /* 710 * Override the capabilities of the BOARD and specify SIMPLE 711 * MODE 712 */ 713 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 714 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 715 else 716 supported_methods = sc->ciss_cfg->supported_methods; 717 break; 718 } 719 720setup: 721 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 722 method = CISS_TRANSPORT_METHOD_PERF; 723 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 724 sc->ciss_cfg->transport_offset); 725 if (ciss_init_perf(sc)) { 726 supported_methods &= ~method; 727 goto setup; 728 } 729 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 730 method = CISS_TRANSPORT_METHOD_SIMPLE; 731 } else { 732 ciss_printf(sc, "No supported transport methods: 0x%x\n", 733 sc->ciss_cfg->supported_methods); 734 return(ENXIO); 735 } 736 737 /* 738 * Tell it we're using the low 4GB of RAM. Set the default interrupt 739 * coalescing options. 740 */ 741 sc->ciss_cfg->requested_method = method; 742 sc->ciss_cfg->command_physlimit = 0; 743 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 744 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 745 746#ifdef __i386__ 747 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 748#endif 749 750 if (ciss_update_config(sc)) { 751 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 752 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 753 return(ENXIO); 754 } 755 if ((sc->ciss_cfg->active_method & method) == 0) { 756 supported_methods &= ~method; 757 if (supported_methods == 0) { 758 ciss_printf(sc, "adapter refuses to go into available transports " 759 "mode (0x%x, 0x%x)\n", supported_methods, 760 sc->ciss_cfg->active_method); 761 return(ENXIO); 762 } else 763 goto setup; 764 } 765 766 /* 767 * Wait for the adapter to come ready. 768 */ 769 if ((error = ciss_wait_adapter(sc)) != 0) 770 return(error); 771 772 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 773 * interrupts have a rid of 0, this will be overridden if MSIX is used. 774 */ 775 sc->ciss_irq_rid[0] = 0; 776 if (method == CISS_TRANSPORT_METHOD_PERF) { 777 ciss_printf(sc, "PERFORMANT Transport\n"); 778 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 779 intr = ciss_perf_msi_intr; 780 } else { 781 intr = ciss_perf_intr; 782 } 783 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 784 * Unfortunately, there is no good way to know if this is a SAS 785 * controller. Hopefully enabling this bit universally will work OK. 786 * It seems to work fine for SA6i controllers. 787 */ 788 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 789 790 } else { 791 ciss_printf(sc, "SIMPLE Transport\n"); 792 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 793 if (ciss_force_interrupt == 2) 794 /* If this fails, we automatically revert to INTx */ 795 ciss_setup_msix(sc); 796 sc->ciss_perf = NULL; 797 intr = ciss_intr; 798 sc->ciss_interrupt_mask = sqmask; 799 } 800 801 /* 802 * Turn off interrupts before we go routing anything. 803 */ 804 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 805 806 /* 807 * Allocate and set up our interrupt. 808 */ 809 if ((sc->ciss_irq_resource = 810 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 811 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 812 ciss_printf(sc, "can't allocate interrupt\n"); 813 return(ENXIO); 814 } 815 816 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 817 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 818 &sc->ciss_intr)) { 819 ciss_printf(sc, "can't set up interrupt\n"); 820 return(ENXIO); 821 } 822 823 /* 824 * Allocate the parent bus DMA tag appropriate for our PCI 825 * interface. 826 * 827 * Note that "simple" adapters can only address within a 32-bit 828 * span. 829 */ 830 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 831 1, 0, /* alignment, boundary */ 832 BUS_SPACE_MAXADDR, /* lowaddr */ 833 BUS_SPACE_MAXADDR, /* highaddr */ 834 NULL, NULL, /* filter, filterarg */ 835 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 836 CISS_MAX_SG_ELEMENTS, /* nsegments */ 837 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 838 0, /* flags */ 839 NULL, NULL, /* lockfunc, lockarg */ 840 &sc->ciss_parent_dmat)) { 841 ciss_printf(sc, "can't allocate parent DMA tag\n"); 842 return(ENOMEM); 843 } 844 845 /* 846 * Create DMA tag for mapping buffers into adapter-addressable 847 * space. 848 */ 849 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 850 1, 0, /* alignment, boundary */ 851 BUS_SPACE_MAXADDR, /* lowaddr */ 852 BUS_SPACE_MAXADDR, /* highaddr */ 853 NULL, NULL, /* filter, filterarg */ 854 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 855 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 856 BUS_DMA_ALLOCNOW, /* flags */ 857 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 858 &sc->ciss_buffer_dmat)) { 859 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 860 return(ENOMEM); 861 } 862 return(0); 863} 864 865/************************************************************************ 866 * Setup MSI/MSIX operation (Performant only) 867 * Four interrupts are available, but we only use 1 right now. If MSI-X 868 * isn't avaialble, try using MSI instead. 869 */ 870static int 871ciss_setup_msix(struct ciss_softc *sc) 872{ 873 int val, i; 874 875 /* Weed out devices that don't actually support MSI */ 876 i = ciss_lookup(sc->ciss_dev); 877 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 878 return (EINVAL); 879 880 /* 881 * Only need to use the minimum number of MSI vectors, as the driver 882 * doesn't support directed MSIX interrupts. 883 */ 884 val = pci_msix_count(sc->ciss_dev); 885 if (val < CISS_MSI_COUNT) { 886 val = pci_msi_count(sc->ciss_dev); 887 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 888 if (val < CISS_MSI_COUNT) 889 return (EINVAL); 890 } 891 val = MIN(val, CISS_MSI_COUNT); 892 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 893 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 894 return (EINVAL); 895 } 896 897 sc->ciss_msi = val; 898 if (bootverbose) 899 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 900 (val != 1) ? "s" : ""); 901 902 for (i = 0; i < val; i++) 903 sc->ciss_irq_rid[i] = i + 1; 904 905 return (0); 906 907} 908 909/************************************************************************ 910 * Setup the Performant structures. 911 */ 912static int 913ciss_init_perf(struct ciss_softc *sc) 914{ 915 struct ciss_perf_config *pc = sc->ciss_perf; 916 int reply_size; 917 918 /* 919 * Create the DMA tag for the reply queue. 920 */ 921 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 922 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 923 1, 0, /* alignment, boundary */ 924 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 925 BUS_SPACE_MAXADDR, /* highaddr */ 926 NULL, NULL, /* filter, filterarg */ 927 reply_size, 1, /* maxsize, nsegments */ 928 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 929 0, /* flags */ 930 NULL, NULL, /* lockfunc, lockarg */ 931 &sc->ciss_reply_dmat)) { 932 ciss_printf(sc, "can't allocate reply DMA tag\n"); 933 return(ENOMEM); 934 } 935 /* 936 * Allocate memory and make it available for DMA. 937 */ 938 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 939 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 940 ciss_printf(sc, "can't allocate reply memory\n"); 941 return(ENOMEM); 942 } 943 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 944 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 945 bzero(sc->ciss_reply, reply_size); 946 947 sc->ciss_cycle = 0x1; 948 sc->ciss_rqidx = 0; 949 950 /* 951 * Preload the fetch table with common command sizes. This allows the 952 * hardware to not waste bus cycles for typical i/o commands, but also not 953 * tax the driver to be too exact in choosing sizes. The table is optimized 954 * for page-aligned i/o's, but since most i/o comes from the various pagers, 955 * it's a reasonable assumption to make. 956 */ 957 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 958 pc->fetch_count[CISS_SG_FETCH_1] = 959 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 960 pc->fetch_count[CISS_SG_FETCH_2] = 961 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 962 pc->fetch_count[CISS_SG_FETCH_4] = 963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 964 pc->fetch_count[CISS_SG_FETCH_8] = 965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 966 pc->fetch_count[CISS_SG_FETCH_16] = 967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 968 pc->fetch_count[CISS_SG_FETCH_32] = 969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 971 972 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 973 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 974 pc->rq_bank_hi = 0; 975 pc->rq_bank_lo = 0; 976 pc->rq[0].rq_addr_hi = 0x0; 977 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 978 979 return(0); 980} 981 982/************************************************************************ 983 * Wait for the adapter to come ready. 984 */ 985static int 986ciss_wait_adapter(struct ciss_softc *sc) 987{ 988 int i; 989 990 debug_called(1); 991 992 /* 993 * Wait for the adapter to come ready. 994 */ 995 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 996 ciss_printf(sc, "waiting for adapter to come ready...\n"); 997 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 998 DELAY(1000000); /* one second */ 999 if (i > 30) { 1000 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1001 return(EIO); 1002 } 1003 } 1004 } 1005 return(0); 1006} 1007 1008/************************************************************************ 1009 * Flush the adapter cache. 1010 */ 1011static int 1012ciss_flush_adapter(struct ciss_softc *sc) 1013{ 1014 struct ciss_request *cr; 1015 struct ciss_bmic_flush_cache *cbfc; 1016 int error, command_status; 1017 1018 debug_called(1); 1019 1020 cr = NULL; 1021 cbfc = NULL; 1022 1023 /* 1024 * Build a BMIC request to flush the cache. We don't disable 1025 * it, as we may be going to do more I/O (eg. we are emulating 1026 * the Synchronise Cache command). 1027 */ 1028 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1029 error = ENOMEM; 1030 goto out; 1031 } 1032 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1033 (void **)&cbfc, sizeof(*cbfc))) != 0) 1034 goto out; 1035 1036 /* 1037 * Submit the request and wait for it to complete. 1038 */ 1039 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1040 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1041 goto out; 1042 } 1043 1044 /* 1045 * Check response. 1046 */ 1047 ciss_report_request(cr, &command_status, NULL); 1048 switch(command_status) { 1049 case CISS_CMD_STATUS_SUCCESS: 1050 break; 1051 default: 1052 ciss_printf(sc, "error flushing cache (%s)\n", 1053 ciss_name_command_status(command_status)); 1054 error = EIO; 1055 goto out; 1056 } 1057 1058out: 1059 if (cbfc != NULL) 1060 free(cbfc, CISS_MALLOC_CLASS); 1061 if (cr != NULL) 1062 ciss_release_request(cr); 1063 return(error); 1064} 1065 1066static void 1067ciss_soft_reset(struct ciss_softc *sc) 1068{ 1069 struct ciss_request *cr = NULL; 1070 struct ciss_command *cc; 1071 int i, error = 0; 1072 1073 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1074 /* only reset proxy controllers */ 1075 if (sc->ciss_controllers[i].physical.bus == 0) 1076 continue; 1077 1078 if ((error = ciss_get_request(sc, &cr)) != 0) 1079 break; 1080 1081 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1082 NULL, 0)) != 0) 1083 break; 1084 1085 cc = cr->cr_cc; 1086 cc->header.address = sc->ciss_controllers[i]; 1087 1088 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1089 break; 1090 1091 ciss_release_request(cr); 1092 } 1093 1094 if (error) 1095 ciss_printf(sc, "error resetting controller (%d)\n", error); 1096 1097 if (cr != NULL) 1098 ciss_release_request(cr); 1099} 1100 1101/************************************************************************ 1102 * Allocate memory for the adapter command structures, initialise 1103 * the request structures. 1104 * 1105 * Note that the entire set of commands are allocated in a single 1106 * contiguous slab. 1107 */ 1108static int 1109ciss_init_requests(struct ciss_softc *sc) 1110{ 1111 struct ciss_request *cr; 1112 int i; 1113 1114 debug_called(1); 1115 1116 if (bootverbose) 1117 ciss_printf(sc, "using %d of %d available commands\n", 1118 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1119 1120 /* 1121 * Create the DMA tag for commands. 1122 */ 1123 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1124 32, 0, /* alignment, boundary */ 1125 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1126 BUS_SPACE_MAXADDR, /* highaddr */ 1127 NULL, NULL, /* filter, filterarg */ 1128 CISS_COMMAND_ALLOC_SIZE * 1129 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1130 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1131 0, /* flags */ 1132 NULL, NULL, /* lockfunc, lockarg */ 1133 &sc->ciss_command_dmat)) { 1134 ciss_printf(sc, "can't allocate command DMA tag\n"); 1135 return(ENOMEM); 1136 } 1137 /* 1138 * Allocate memory and make it available for DMA. 1139 */ 1140 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1141 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1142 ciss_printf(sc, "can't allocate command memory\n"); 1143 return(ENOMEM); 1144 } 1145 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1146 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1147 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1148 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1149 1150 /* 1151 * Set up the request and command structures, push requests onto 1152 * the free queue. 1153 */ 1154 for (i = 1; i < sc->ciss_max_requests; i++) { 1155 cr = &sc->ciss_request[i]; 1156 cr->cr_sc = sc; 1157 cr->cr_tag = i; 1158 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1159 CISS_COMMAND_ALLOC_SIZE * i); 1160 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1161 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1162 ciss_enqueue_free(cr); 1163 } 1164 return(0); 1165} 1166 1167static void 1168ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1169{ 1170 uint32_t *addr; 1171 1172 addr = arg; 1173 *addr = segs[0].ds_addr; 1174} 1175 1176/************************************************************************ 1177 * Identify the adapter, print some information about it. 1178 */ 1179static int 1180ciss_identify_adapter(struct ciss_softc *sc) 1181{ 1182 struct ciss_request *cr; 1183 int error, command_status; 1184 1185 debug_called(1); 1186 1187 cr = NULL; 1188 1189 /* 1190 * Get a request, allocate storage for the adapter data. 1191 */ 1192 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1193 (void **)&sc->ciss_id, 1194 sizeof(*sc->ciss_id))) != 0) 1195 goto out; 1196 1197 /* 1198 * Submit the request and wait for it to complete. 1199 */ 1200 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1201 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1202 goto out; 1203 } 1204 1205 /* 1206 * Check response. 1207 */ 1208 ciss_report_request(cr, &command_status, NULL); 1209 switch(command_status) { 1210 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1211 break; 1212 case CISS_CMD_STATUS_DATA_UNDERRUN: 1213 case CISS_CMD_STATUS_DATA_OVERRUN: 1214 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1215 default: 1216 ciss_printf(sc, "error reading adapter information (%s)\n", 1217 ciss_name_command_status(command_status)); 1218 error = EIO; 1219 goto out; 1220 } 1221 1222 /* sanity-check reply */ 1223 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1224 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1225 error = ENXIO; 1226 goto out; 1227 } 1228 1229#if 0 1230 /* XXX later revisions may not need this */ 1231 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1232#endif 1233 1234 /* XXX only really required for old 5300 adapters? */ 1235 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1236 1237 /* 1238 * Earlier controller specs do not contain these config 1239 * entries, so assume that a 0 means its old and assign 1240 * these values to the defaults that were established 1241 * when this driver was developed for them 1242 */ 1243 if (sc->ciss_cfg->max_logical_supported == 0) 1244 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1245 if (sc->ciss_cfg->max_physical_supported == 0) 1246 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1247 /* print information */ 1248 if (bootverbose) { 1249 ciss_printf(sc, " %d logical drive%s configured\n", 1250 sc->ciss_id->configured_logical_drives, 1251 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1252 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1253 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1254 1255 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1256 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1257 ciss_printf(sc, " supported I/O methods 0x%b\n", 1258 sc->ciss_cfg->supported_methods, 1259 "\20\1READY\2simple\3performant\4MEMQ\n"); 1260 ciss_printf(sc, " active I/O method 0x%b\n", 1261 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1262 ciss_printf(sc, " 4G page base 0x%08x\n", 1263 sc->ciss_cfg->command_physlimit); 1264 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1265 sc->ciss_cfg->interrupt_coalesce_delay); 1266 ciss_printf(sc, " interrupt coalesce count %d\n", 1267 sc->ciss_cfg->interrupt_coalesce_count); 1268 ciss_printf(sc, " max outstanding commands %d\n", 1269 sc->ciss_cfg->max_outstanding_commands); 1270 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1271 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1272 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1273 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1274 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1275 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1276 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1277 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1278 "Available" : "Unavailable"); 1279 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1280 "Enabled" : "Disabled"); 1281 } 1282 1283out: 1284 if (error) { 1285 if (sc->ciss_id != NULL) { 1286 free(sc->ciss_id, CISS_MALLOC_CLASS); 1287 sc->ciss_id = NULL; 1288 } 1289 } 1290 if (cr != NULL) 1291 ciss_release_request(cr); 1292 return(error); 1293} 1294 1295/************************************************************************ 1296 * Helper routine for generating a list of logical and physical luns. 1297 */ 1298static struct ciss_lun_report * 1299ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1300{ 1301 struct ciss_request *cr; 1302 struct ciss_command *cc; 1303 struct ciss_report_cdb *crc; 1304 struct ciss_lun_report *cll; 1305 int command_status; 1306 int report_size; 1307 int error = 0; 1308 1309 debug_called(1); 1310 1311 cr = NULL; 1312 cll = NULL; 1313 1314 /* 1315 * Get a request, allocate storage for the address list. 1316 */ 1317 if ((error = ciss_get_request(sc, &cr)) != 0) 1318 goto out; 1319 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1320 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1321 ciss_printf(sc, "can't allocate memory for lun report\n"); 1322 error = ENOMEM; 1323 goto out; 1324 } 1325 1326 /* 1327 * Build the Report Logical/Physical LUNs command. 1328 */ 1329 cc = cr->cr_cc; 1330 cr->cr_data = cll; 1331 cr->cr_length = report_size; 1332 cr->cr_flags = CISS_REQ_DATAIN; 1333 1334 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1335 cc->header.address.physical.bus = 0; 1336 cc->header.address.physical.target = 0; 1337 cc->cdb.cdb_length = sizeof(*crc); 1338 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1339 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1340 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1341 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1342 1343 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1344 bzero(crc, sizeof(*crc)); 1345 crc->opcode = opcode; 1346 crc->length = htonl(report_size); /* big-endian field */ 1347 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1348 1349 /* 1350 * Submit the request and wait for it to complete. (timeout 1351 * here should be much greater than above) 1352 */ 1353 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1354 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1355 goto out; 1356 } 1357 1358 /* 1359 * Check response. Note that data over/underrun is OK. 1360 */ 1361 ciss_report_request(cr, &command_status, NULL); 1362 switch(command_status) { 1363 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1364 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1365 break; 1366 case CISS_CMD_STATUS_DATA_OVERRUN: 1367 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1368 sc->ciss_cfg->max_logical_supported); 1369 break; 1370 default: 1371 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1372 ciss_name_command_status(command_status)); 1373 error = EIO; 1374 goto out; 1375 } 1376 ciss_release_request(cr); 1377 cr = NULL; 1378 1379out: 1380 if (cr != NULL) 1381 ciss_release_request(cr); 1382 if (error && cll != NULL) { 1383 free(cll, CISS_MALLOC_CLASS); 1384 cll = NULL; 1385 } 1386 return(cll); 1387} 1388 1389/************************************************************************ 1390 * Find logical drives on the adapter. 1391 */ 1392static int 1393ciss_init_logical(struct ciss_softc *sc) 1394{ 1395 struct ciss_lun_report *cll; 1396 int error = 0, i, j; 1397 int ndrives; 1398 1399 debug_called(1); 1400 1401 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1402 sc->ciss_cfg->max_logical_supported); 1403 if (cll == NULL) { 1404 error = ENXIO; 1405 goto out; 1406 } 1407 1408 /* sanity-check reply */ 1409 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1410 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1411 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1412 ndrives, sc->ciss_cfg->max_logical_supported); 1413 error = ENXIO; 1414 goto out; 1415 } 1416 1417 /* 1418 * Save logical drive information. 1419 */ 1420 if (bootverbose) { 1421 ciss_printf(sc, "%d logical drive%s\n", 1422 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1423 } 1424 1425 sc->ciss_logical = 1426 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1427 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1428 if (sc->ciss_logical == NULL) { 1429 error = ENXIO; 1430 goto out; 1431 } 1432 1433 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1434 sc->ciss_logical[i] = 1435 malloc(sc->ciss_cfg->max_logical_supported * 1436 sizeof(struct ciss_ldrive), 1437 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1438 if (sc->ciss_logical[i] == NULL) { 1439 error = ENXIO; 1440 goto out; 1441 } 1442 1443 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1444 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1445 } 1446 1447 1448 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1449 if (i < ndrives) { 1450 struct ciss_ldrive *ld; 1451 int bus, target; 1452 1453 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1454 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1455 ld = &sc->ciss_logical[bus][target]; 1456 1457 ld->cl_address = cll->lun[i]; 1458 ld->cl_controller = &sc->ciss_controllers[bus]; 1459 if (ciss_identify_logical(sc, ld) != 0) 1460 continue; 1461 /* 1462 * If the drive has had media exchanged, we should bring it online. 1463 */ 1464 if (ld->cl_lstatus->media_exchanged) 1465 ciss_accept_media(sc, ld); 1466 1467 } 1468 } 1469 1470 out: 1471 if (cll != NULL) 1472 free(cll, CISS_MALLOC_CLASS); 1473 return(error); 1474} 1475 1476static int 1477ciss_init_physical(struct ciss_softc *sc) 1478{ 1479 struct ciss_lun_report *cll; 1480 int error = 0, i; 1481 int nphys; 1482 int bus, target; 1483 1484 debug_called(1); 1485 1486 bus = 0; 1487 target = 0; 1488 1489 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1490 sc->ciss_cfg->max_physical_supported); 1491 if (cll == NULL) { 1492 error = ENXIO; 1493 goto out; 1494 } 1495 1496 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1497 1498 if (bootverbose) { 1499 ciss_printf(sc, "%d physical device%s\n", 1500 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1501 } 1502 1503 /* 1504 * Figure out the bus mapping. 1505 * Logical buses include both the local logical bus for local arrays and 1506 * proxy buses for remote arrays. Physical buses are numbered by the 1507 * controller and represent physical buses that hold physical devices. 1508 * We shift these bus numbers so that everything fits into a single flat 1509 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1510 * numbers, and the physical bus numbers are shifted to be above that. 1511 * This results in the various driver arrays being indexed as follows: 1512 * 1513 * ciss_controllers[] - indexed by logical bus 1514 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1515 * being shifted by 32. 1516 * ciss_logical[][] - indexed by logical bus 1517 * ciss_physical[][] - indexed by physical bus 1518 * 1519 * XXX This is getting more and more hackish. CISS really doesn't play 1520 * well with a standard SCSI model; devices are addressed via magic 1521 * cookies, not via b/t/l addresses. Since there is no way to store 1522 * the cookie in the CAM device object, we have to keep these lookup 1523 * tables handy so that the devices can be found quickly at the cost 1524 * of wasting memory and having a convoluted lookup scheme. This 1525 * driver should probably be converted to block interface. 1526 */ 1527 /* 1528 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1529 * controller. A proxy controller is another physical controller 1530 * behind the primary PCI controller. We need to know about this 1531 * so that BMIC commands can be properly targeted. There can be 1532 * proxy controllers attached to a single PCI controller, so 1533 * find the highest numbered one so the array can be properly 1534 * sized. 1535 */ 1536 sc->ciss_max_logical_bus = 1; 1537 for (i = 0; i < nphys; i++) { 1538 if (cll->lun[i].physical.extra_address == 0) { 1539 bus = cll->lun[i].physical.bus; 1540 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1541 } else { 1542 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1543 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1544 } 1545 } 1546 1547 sc->ciss_controllers = 1548 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1549 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1550 1551 if (sc->ciss_controllers == NULL) { 1552 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1553 error = ENOMEM; 1554 goto out; 1555 } 1556 1557 /* setup a map of controller addresses */ 1558 for (i = 0; i < nphys; i++) { 1559 if (cll->lun[i].physical.extra_address == 0) { 1560 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1561 } 1562 } 1563 1564 sc->ciss_physical = 1565 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1566 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1567 if (sc->ciss_physical == NULL) { 1568 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1569 error = ENOMEM; 1570 goto out; 1571 } 1572 1573 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1574 sc->ciss_physical[i] = 1575 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1576 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1577 if (sc->ciss_physical[i] == NULL) { 1578 ciss_printf(sc, "Could not allocate memory for target map\n"); 1579 error = ENOMEM; 1580 goto out; 1581 } 1582 } 1583 1584 ciss_filter_physical(sc, cll); 1585 1586out: 1587 if (cll != NULL) 1588 free(cll, CISS_MALLOC_CLASS); 1589 1590 return(error); 1591} 1592 1593static int 1594ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1595{ 1596 u_int32_t ea; 1597 int i, nphys; 1598 int bus, target; 1599 1600 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1601 for (i = 0; i < nphys; i++) { 1602 if (cll->lun[i].physical.extra_address == 0) 1603 continue; 1604 1605 /* 1606 * Filter out devices that we don't want. Level 3 LUNs could 1607 * probably be supported, but the docs don't give enough of a 1608 * hint to know how. 1609 * 1610 * The mode field of the physical address is likely set to have 1611 * hard disks masked out. Honor it unless the user has overridden 1612 * us with the tunable. We also munge the inquiry data for these 1613 * disks so that they only show up as passthrough devices. Keeping 1614 * them visible in this fashion is useful for doing things like 1615 * flashing firmware. 1616 */ 1617 ea = cll->lun[i].physical.extra_address; 1618 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1619 (CISS_EXTRA_MODE2(ea) == 0x3)) 1620 continue; 1621 if ((ciss_expose_hidden_physical == 0) && 1622 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1623 continue; 1624 1625 /* 1626 * Note: CISS firmware numbers physical busses starting at '1', not 1627 * '0'. This numbering is internal to the firmware and is only 1628 * used as a hint here. 1629 */ 1630 bus = CISS_EXTRA_BUS2(ea) - 1; 1631 target = CISS_EXTRA_TARGET2(ea); 1632 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1633 sc->ciss_physical[bus][target].cp_online = 1; 1634 } 1635 1636 return (0); 1637} 1638 1639static int 1640ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1641{ 1642 struct ciss_request *cr; 1643 struct ciss_command *cc; 1644 struct scsi_inquiry *inq; 1645 int error; 1646 int command_status; 1647 1648 cr = NULL; 1649 1650 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1651 1652 if ((error = ciss_get_request(sc, &cr)) != 0) 1653 goto out; 1654 1655 cc = cr->cr_cc; 1656 cr->cr_data = &ld->cl_geometry; 1657 cr->cr_length = sizeof(ld->cl_geometry); 1658 cr->cr_flags = CISS_REQ_DATAIN; 1659 1660 cc->header.address = ld->cl_address; 1661 cc->cdb.cdb_length = 6; 1662 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1663 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1664 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1665 cc->cdb.timeout = 30; 1666 1667 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1668 inq->opcode = INQUIRY; 1669 inq->byte2 = SI_EVPD; 1670 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1671 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1672 1673 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1674 ciss_printf(sc, "error getting geometry (%d)\n", error); 1675 goto out; 1676 } 1677 1678 ciss_report_request(cr, &command_status, NULL); 1679 switch(command_status) { 1680 case CISS_CMD_STATUS_SUCCESS: 1681 case CISS_CMD_STATUS_DATA_UNDERRUN: 1682 break; 1683 case CISS_CMD_STATUS_DATA_OVERRUN: 1684 ciss_printf(sc, "WARNING: Data overrun\n"); 1685 break; 1686 default: 1687 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1688 ciss_name_command_status(command_status)); 1689 break; 1690 } 1691 1692out: 1693 if (cr != NULL) 1694 ciss_release_request(cr); 1695 return(error); 1696} 1697/************************************************************************ 1698 * Identify a logical drive, initialise state related to it. 1699 */ 1700static int 1701ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1702{ 1703 struct ciss_request *cr; 1704 struct ciss_command *cc; 1705 struct ciss_bmic_cdb *cbc; 1706 int error, command_status; 1707 1708 debug_called(1); 1709 1710 cr = NULL; 1711 1712 /* 1713 * Build a BMIC request to fetch the drive ID. 1714 */ 1715 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1716 (void **)&ld->cl_ldrive, 1717 sizeof(*ld->cl_ldrive))) != 0) 1718 goto out; 1719 cc = cr->cr_cc; 1720 cc->header.address = *ld->cl_controller; /* target controller */ 1721 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1722 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1723 1724 /* 1725 * Submit the request and wait for it to complete. 1726 */ 1727 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1728 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1729 goto out; 1730 } 1731 1732 /* 1733 * Check response. 1734 */ 1735 ciss_report_request(cr, &command_status, NULL); 1736 switch(command_status) { 1737 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1738 break; 1739 case CISS_CMD_STATUS_DATA_UNDERRUN: 1740 case CISS_CMD_STATUS_DATA_OVERRUN: 1741 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1742 default: 1743 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1744 ciss_name_command_status(command_status)); 1745 error = EIO; 1746 goto out; 1747 } 1748 ciss_release_request(cr); 1749 cr = NULL; 1750 1751 /* 1752 * Build a CISS BMIC command to get the logical drive status. 1753 */ 1754 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1755 goto out; 1756 1757 /* 1758 * Get the logical drive geometry. 1759 */ 1760 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1761 goto out; 1762 1763 /* 1764 * Print the drive's basic characteristics. 1765 */ 1766 if (bootverbose) { 1767 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1768 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1769 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1770 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1771 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1772 ld->cl_ldrive->block_size)); 1773 1774 ciss_print_ldrive(sc, ld); 1775 } 1776out: 1777 if (error != 0) { 1778 /* make the drive not-exist */ 1779 ld->cl_status = CISS_LD_NONEXISTENT; 1780 if (ld->cl_ldrive != NULL) { 1781 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1782 ld->cl_ldrive = NULL; 1783 } 1784 if (ld->cl_lstatus != NULL) { 1785 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1786 ld->cl_lstatus = NULL; 1787 } 1788 } 1789 if (cr != NULL) 1790 ciss_release_request(cr); 1791 1792 return(error); 1793} 1794 1795/************************************************************************ 1796 * Get status for a logical drive. 1797 * 1798 * XXX should we also do this in response to Test Unit Ready? 1799 */ 1800static int 1801ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1802{ 1803 struct ciss_request *cr; 1804 struct ciss_command *cc; 1805 struct ciss_bmic_cdb *cbc; 1806 int error, command_status; 1807 1808 /* 1809 * Build a CISS BMIC command to get the logical drive status. 1810 */ 1811 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1812 (void **)&ld->cl_lstatus, 1813 sizeof(*ld->cl_lstatus))) != 0) 1814 goto out; 1815 cc = cr->cr_cc; 1816 cc->header.address = *ld->cl_controller; /* target controller */ 1817 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1818 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1819 1820 /* 1821 * Submit the request and wait for it to complete. 1822 */ 1823 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1824 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1825 goto out; 1826 } 1827 1828 /* 1829 * Check response. 1830 */ 1831 ciss_report_request(cr, &command_status, NULL); 1832 switch(command_status) { 1833 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1834 break; 1835 case CISS_CMD_STATUS_DATA_UNDERRUN: 1836 case CISS_CMD_STATUS_DATA_OVERRUN: 1837 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1838 default: 1839 ciss_printf(sc, "error reading logical drive status (%s)\n", 1840 ciss_name_command_status(command_status)); 1841 error = EIO; 1842 goto out; 1843 } 1844 1845 /* 1846 * Set the drive's summary status based on the returned status. 1847 * 1848 * XXX testing shows that a failed JBOD drive comes back at next 1849 * boot in "queued for expansion" mode. WTF? 1850 */ 1851 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1852 1853out: 1854 if (cr != NULL) 1855 ciss_release_request(cr); 1856 return(error); 1857} 1858 1859/************************************************************************ 1860 * Notify the adapter of a config update. 1861 */ 1862static int 1863ciss_update_config(struct ciss_softc *sc) 1864{ 1865 int i; 1866 1867 debug_called(1); 1868 1869 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1870 for (i = 0; i < 1000; i++) { 1871 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1872 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1873 return(0); 1874 } 1875 DELAY(1000); 1876 } 1877 return(1); 1878} 1879 1880/************************************************************************ 1881 * Accept new media into a logical drive. 1882 * 1883 * XXX The drive has previously been offline; it would be good if we 1884 * could make sure it's not open right now. 1885 */ 1886static int 1887ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1888{ 1889 struct ciss_request *cr; 1890 struct ciss_command *cc; 1891 struct ciss_bmic_cdb *cbc; 1892 int command_status; 1893 int error = 0, ldrive; 1894 1895 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1896 1897 debug(0, "bringing logical drive %d back online", ldrive); 1898 1899 /* 1900 * Build a CISS BMIC command to bring the drive back online. 1901 */ 1902 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1903 NULL, 0)) != 0) 1904 goto out; 1905 cc = cr->cr_cc; 1906 cc->header.address = *ld->cl_controller; /* target controller */ 1907 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1908 cbc->log_drive = ldrive; 1909 1910 /* 1911 * Submit the request and wait for it to complete. 1912 */ 1913 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1914 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1915 goto out; 1916 } 1917 1918 /* 1919 * Check response. 1920 */ 1921 ciss_report_request(cr, &command_status, NULL); 1922 switch(command_status) { 1923 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1924 /* we should get a logical drive status changed event here */ 1925 break; 1926 default: 1927 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1928 ciss_name_command_status(command_status)); 1929 break; 1930 } 1931 1932out: 1933 if (cr != NULL) 1934 ciss_release_request(cr); 1935 return(error); 1936} 1937 1938/************************************************************************ 1939 * Release adapter resources. 1940 */ 1941static void 1942ciss_free(struct ciss_softc *sc) 1943{ 1944 struct ciss_request *cr; 1945 int i, j; 1946 1947 debug_called(1); 1948 1949 /* we're going away */ 1950 sc->ciss_flags |= CISS_FLAG_ABORTING; 1951 1952 /* terminate the periodic heartbeat routine */ 1953 callout_stop(&sc->ciss_periodic); 1954 1955 /* cancel the Event Notify chain */ 1956 ciss_notify_abort(sc); 1957 1958 ciss_kill_notify_thread(sc); 1959 1960 /* disconnect from CAM */ 1961 if (sc->ciss_cam_sim) { 1962 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1963 if (sc->ciss_cam_sim[i]) { 1964 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1965 cam_sim_free(sc->ciss_cam_sim[i], 0); 1966 } 1967 } 1968 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1969 CISS_PHYSICAL_BASE; i++) { 1970 if (sc->ciss_cam_sim[i]) { 1971 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1972 cam_sim_free(sc->ciss_cam_sim[i], 0); 1973 } 1974 } 1975 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1976 } 1977 if (sc->ciss_cam_devq) 1978 cam_simq_free(sc->ciss_cam_devq); 1979 1980 /* remove the control device */ 1981 mtx_unlock(&sc->ciss_mtx); 1982 if (sc->ciss_dev_t != NULL) 1983 destroy_dev(sc->ciss_dev_t); 1984 1985 /* Final cleanup of the callout. */ 1986 callout_drain(&sc->ciss_periodic); 1987 mtx_destroy(&sc->ciss_mtx); 1988 1989 /* free the controller data */ 1990 if (sc->ciss_id != NULL) 1991 free(sc->ciss_id, CISS_MALLOC_CLASS); 1992 1993 /* release I/O resources */ 1994 if (sc->ciss_regs_resource != NULL) 1995 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1996 sc->ciss_regs_rid, sc->ciss_regs_resource); 1997 if (sc->ciss_cfg_resource != NULL) 1998 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1999 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2000 if (sc->ciss_intr != NULL) 2001 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2002 if (sc->ciss_irq_resource != NULL) 2003 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2004 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2005 if (sc->ciss_msi) 2006 pci_release_msi(sc->ciss_dev); 2007 2008 while ((cr = ciss_dequeue_free(sc)) != NULL) 2009 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2010 if (sc->ciss_buffer_dmat) 2011 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2012 2013 /* destroy command memory and DMA tag */ 2014 if (sc->ciss_command != NULL) { 2015 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2016 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2017 } 2018 if (sc->ciss_command_dmat) 2019 bus_dma_tag_destroy(sc->ciss_command_dmat); 2020 2021 if (sc->ciss_reply) { 2022 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2023 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2024 } 2025 if (sc->ciss_reply_dmat) 2026 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2027 2028 /* destroy DMA tags */ 2029 if (sc->ciss_parent_dmat) 2030 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2031 if (sc->ciss_logical) { 2032 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 2033 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2034 if (sc->ciss_logical[i][j].cl_ldrive) 2035 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2036 if (sc->ciss_logical[i][j].cl_lstatus) 2037 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2038 } 2039 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2040 } 2041 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2042 } 2043 2044 if (sc->ciss_physical) { 2045 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2046 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2047 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2048 } 2049 2050 if (sc->ciss_controllers) 2051 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2052 2053} 2054 2055/************************************************************************ 2056 * Give a command to the adapter. 2057 * 2058 * Note that this uses the simple transport layer directly. If we 2059 * want to add support for other layers, we'll need a switch of some 2060 * sort. 2061 * 2062 * Note that the simple transport layer has no way of refusing a 2063 * command; we only have as many request structures as the adapter 2064 * supports commands, so we don't have to check (this presumes that 2065 * the adapter can handle commands as fast as we throw them at it). 2066 */ 2067static int 2068ciss_start(struct ciss_request *cr) 2069{ 2070 struct ciss_command *cc; /* XXX debugging only */ 2071 int error; 2072 2073 cc = cr->cr_cc; 2074 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2075 2076 /* 2077 * Map the request's data. 2078 */ 2079 if ((error = ciss_map_request(cr))) 2080 return(error); 2081 2082#if 0 2083 ciss_print_request(cr); 2084#endif 2085 2086 return(0); 2087} 2088 2089/************************************************************************ 2090 * Fetch completed request(s) from the adapter, queue them for 2091 * completion handling. 2092 * 2093 * Note that this uses the simple transport layer directly. If we 2094 * want to add support for other layers, we'll need a switch of some 2095 * sort. 2096 * 2097 * Note that the simple transport mechanism does not require any 2098 * reentrancy protection; the OPQ read is atomic. If there is a 2099 * chance of a race with something else that might move the request 2100 * off the busy list, then we will have to lock against that 2101 * (eg. timeouts, etc.) 2102 */ 2103static void 2104ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2105{ 2106 struct ciss_request *cr; 2107 struct ciss_command *cc; 2108 u_int32_t tag, index; 2109 2110 debug_called(3); 2111 2112 /* 2113 * Loop quickly taking requests from the adapter and moving them 2114 * to the completed queue. 2115 */ 2116 for (;;) { 2117 2118 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2119 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2120 break; 2121 index = tag >> 2; 2122 debug(2, "completed command %d%s", index, 2123 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2124 if (index >= sc->ciss_max_requests) { 2125 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2126 continue; 2127 } 2128 cr = &(sc->ciss_request[index]); 2129 cc = cr->cr_cc; 2130 cc->header.host_tag = tag; /* not updated by adapter */ 2131 ciss_enqueue_complete(cr, qh); 2132 } 2133 2134} 2135 2136static void 2137ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2138{ 2139 struct ciss_request *cr; 2140 struct ciss_command *cc; 2141 u_int32_t tag, index; 2142 2143 debug_called(3); 2144 2145 /* 2146 * Loop quickly taking requests from the adapter and moving them 2147 * to the completed queue. 2148 */ 2149 for (;;) { 2150 tag = sc->ciss_reply[sc->ciss_rqidx]; 2151 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2152 break; 2153 index = tag >> 2; 2154 debug(2, "completed command %d%s\n", index, 2155 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2156 if (index < sc->ciss_max_requests) { 2157 cr = &(sc->ciss_request[index]); 2158 cc = cr->cr_cc; 2159 cc->header.host_tag = tag; /* not updated by adapter */ 2160 ciss_enqueue_complete(cr, qh); 2161 } else { 2162 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2163 } 2164 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2165 sc->ciss_rqidx = 0; 2166 sc->ciss_cycle ^= 1; 2167 } 2168 } 2169 2170} 2171 2172/************************************************************************ 2173 * Take an interrupt from the adapter. 2174 */ 2175static void 2176ciss_intr(void *arg) 2177{ 2178 cr_qhead_t qh; 2179 struct ciss_softc *sc = (struct ciss_softc *)arg; 2180 2181 /* 2182 * The only interrupt we recognise indicates that there are 2183 * entries in the outbound post queue. 2184 */ 2185 STAILQ_INIT(&qh); 2186 ciss_done(sc, &qh); 2187 mtx_lock(&sc->ciss_mtx); 2188 ciss_complete(sc, &qh); 2189 mtx_unlock(&sc->ciss_mtx); 2190} 2191 2192static void 2193ciss_perf_intr(void *arg) 2194{ 2195 struct ciss_softc *sc = (struct ciss_softc *)arg; 2196 2197 /* Clear the interrupt and flush the bridges. Docs say that the flush 2198 * needs to be done twice, which doesn't seem right. 2199 */ 2200 CISS_TL_PERF_CLEAR_INT(sc); 2201 CISS_TL_PERF_FLUSH_INT(sc); 2202 2203 ciss_perf_msi_intr(sc); 2204} 2205 2206static void 2207ciss_perf_msi_intr(void *arg) 2208{ 2209 cr_qhead_t qh; 2210 struct ciss_softc *sc = (struct ciss_softc *)arg; 2211 2212 STAILQ_INIT(&qh); 2213 ciss_perf_done(sc, &qh); 2214 mtx_lock(&sc->ciss_mtx); 2215 ciss_complete(sc, &qh); 2216 mtx_unlock(&sc->ciss_mtx); 2217} 2218 2219 2220/************************************************************************ 2221 * Process completed requests. 2222 * 2223 * Requests can be completed in three fashions: 2224 * 2225 * - by invoking a callback function (cr_complete is non-null) 2226 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2227 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2228 */ 2229static void 2230ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2231{ 2232 struct ciss_request *cr; 2233 2234 debug_called(2); 2235 2236 /* 2237 * Loop taking requests off the completed queue and performing 2238 * completion processing on them. 2239 */ 2240 for (;;) { 2241 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2242 break; 2243 ciss_unmap_request(cr); 2244 2245 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2246 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2247 cr->cr_flags &= ~CISS_REQ_BUSY; 2248 2249 /* 2250 * If the request has a callback, invoke it. 2251 */ 2252 if (cr->cr_complete != NULL) { 2253 cr->cr_complete(cr); 2254 continue; 2255 } 2256 2257 /* 2258 * If someone is sleeping on this request, wake them up. 2259 */ 2260 if (cr->cr_flags & CISS_REQ_SLEEP) { 2261 cr->cr_flags &= ~CISS_REQ_SLEEP; 2262 wakeup(cr); 2263 continue; 2264 } 2265 2266 /* 2267 * If someone is polling this request for completion, signal. 2268 */ 2269 if (cr->cr_flags & CISS_REQ_POLL) { 2270 cr->cr_flags &= ~CISS_REQ_POLL; 2271 continue; 2272 } 2273 2274 /* 2275 * Give up and throw the request back on the free queue. This 2276 * should never happen; resources will probably be lost. 2277 */ 2278 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2279 ciss_enqueue_free(cr); 2280 } 2281} 2282 2283/************************************************************************ 2284 * Report on the completion status of a request, and pass back SCSI 2285 * and command status values. 2286 */ 2287static int 2288_ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2289{ 2290 struct ciss_command *cc; 2291 struct ciss_error_info *ce; 2292 2293 debug_called(2); 2294 2295 cc = cr->cr_cc; 2296 ce = (struct ciss_error_info *)&(cc->sg[0]); 2297 2298 /* 2299 * We don't consider data under/overrun an error for the Report 2300 * Logical/Physical LUNs commands. 2301 */ 2302 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2303 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2304 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2305 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2306 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2307 (cc->cdb.cdb[0] == INQUIRY))) { 2308 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2309 debug(2, "ignoring irrelevant under/overrun error"); 2310 } 2311 2312 /* 2313 * Check the command's error bit, if clear, there's no status and 2314 * everything is OK. 2315 */ 2316 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2317 if (scsi_status != NULL) 2318 *scsi_status = SCSI_STATUS_OK; 2319 if (command_status != NULL) 2320 *command_status = CISS_CMD_STATUS_SUCCESS; 2321 return(0); 2322 } else { 2323 if (command_status != NULL) 2324 *command_status = ce->command_status; 2325 if (scsi_status != NULL) { 2326 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2327 *scsi_status = ce->scsi_status; 2328 } else { 2329 *scsi_status = -1; 2330 } 2331 } 2332 if (bootverbose) 2333 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2334 ce->command_status, ciss_name_command_status(ce->command_status), 2335 ce->scsi_status); 2336 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2337 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2338 ce->additional_error_info.invalid_command.offense_size, 2339 ce->additional_error_info.invalid_command.offense_offset, 2340 ce->additional_error_info.invalid_command.offense_value, 2341 func); 2342 } 2343 } 2344#if 0 2345 ciss_print_request(cr); 2346#endif 2347 return(1); 2348} 2349 2350/************************************************************************ 2351 * Issue a request and don't return until it's completed. 2352 * 2353 * Depending on adapter status, we may poll or sleep waiting for 2354 * completion. 2355 */ 2356static int 2357ciss_synch_request(struct ciss_request *cr, int timeout) 2358{ 2359 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2360 return(ciss_wait_request(cr, timeout)); 2361 } else { 2362 return(ciss_poll_request(cr, timeout)); 2363 } 2364} 2365 2366/************************************************************************ 2367 * Issue a request and poll for completion. 2368 * 2369 * Timeout in milliseconds. 2370 */ 2371static int 2372ciss_poll_request(struct ciss_request *cr, int timeout) 2373{ 2374 cr_qhead_t qh; 2375 struct ciss_softc *sc; 2376 int error; 2377 2378 debug_called(2); 2379 2380 STAILQ_INIT(&qh); 2381 sc = cr->cr_sc; 2382 cr->cr_flags |= CISS_REQ_POLL; 2383 if ((error = ciss_start(cr)) != 0) 2384 return(error); 2385 2386 do { 2387 if (sc->ciss_perf) 2388 ciss_perf_done(sc, &qh); 2389 else 2390 ciss_done(sc, &qh); 2391 ciss_complete(sc, &qh); 2392 if (!(cr->cr_flags & CISS_REQ_POLL)) 2393 return(0); 2394 DELAY(1000); 2395 } while (timeout-- >= 0); 2396 return(EWOULDBLOCK); 2397} 2398 2399/************************************************************************ 2400 * Issue a request and sleep waiting for completion. 2401 * 2402 * Timeout in milliseconds. Note that a spurious wakeup will reset 2403 * the timeout. 2404 */ 2405static int 2406ciss_wait_request(struct ciss_request *cr, int timeout) 2407{ 2408 int error; 2409 2410 debug_called(2); 2411 2412 cr->cr_flags |= CISS_REQ_SLEEP; 2413 if ((error = ciss_start(cr)) != 0) 2414 return(error); 2415 2416 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2417 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2418 SBT_1MS * timeout, 0, 0); 2419 } 2420 return(error); 2421} 2422 2423#if 0 2424/************************************************************************ 2425 * Abort a request. Note that a potential exists here to race the 2426 * request being completed; the caller must deal with this. 2427 */ 2428static int 2429ciss_abort_request(struct ciss_request *ar) 2430{ 2431 struct ciss_request *cr; 2432 struct ciss_command *cc; 2433 struct ciss_message_cdb *cmc; 2434 int error; 2435 2436 debug_called(1); 2437 2438 /* get a request */ 2439 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2440 return(error); 2441 2442 /* build the abort command */ 2443 cc = cr->cr_cc; 2444 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2445 cc->header.address.physical.target = 0; 2446 cc->header.address.physical.bus = 0; 2447 cc->cdb.cdb_length = sizeof(*cmc); 2448 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2449 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2450 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2451 cc->cdb.timeout = 30; 2452 2453 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2454 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2455 cmc->type = CISS_MESSAGE_ABORT_TASK; 2456 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2457 2458 /* 2459 * Send the request and wait for a response. If we believe we 2460 * aborted the request OK, clear the flag that indicates it's 2461 * running. 2462 */ 2463 error = ciss_synch_request(cr, 35 * 1000); 2464 if (!error) 2465 error = ciss_report_request(cr, NULL, NULL); 2466 ciss_release_request(cr); 2467 2468 return(error); 2469} 2470#endif 2471 2472 2473/************************************************************************ 2474 * Fetch and initialise a request 2475 */ 2476static int 2477ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2478{ 2479 struct ciss_request *cr; 2480 2481 debug_called(2); 2482 2483 /* 2484 * Get a request and clean it up. 2485 */ 2486 if ((cr = ciss_dequeue_free(sc)) == NULL) 2487 return(ENOMEM); 2488 2489 cr->cr_data = NULL; 2490 cr->cr_flags = 0; 2491 cr->cr_complete = NULL; 2492 cr->cr_private = NULL; 2493 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2494 2495 ciss_preen_command(cr); 2496 *crp = cr; 2497 return(0); 2498} 2499 2500static void 2501ciss_preen_command(struct ciss_request *cr) 2502{ 2503 struct ciss_command *cc; 2504 u_int32_t cmdphys; 2505 2506 /* 2507 * Clean up the command structure. 2508 * 2509 * Note that we set up the error_info structure here, since the 2510 * length can be overwritten by any command. 2511 */ 2512 cc = cr->cr_cc; 2513 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2514 cc->header.sg_total = 0; 2515 cc->header.host_tag = cr->cr_tag << 2; 2516 cc->header.host_tag_zeroes = 0; 2517 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2518 cmdphys = cr->cr_ccphys; 2519 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2520 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2521} 2522 2523/************************************************************************ 2524 * Release a request to the free list. 2525 */ 2526static void 2527ciss_release_request(struct ciss_request *cr) 2528{ 2529 struct ciss_softc *sc; 2530 2531 debug_called(2); 2532 2533 sc = cr->cr_sc; 2534 2535 /* release the request to the free queue */ 2536 ciss_requeue_free(cr); 2537} 2538 2539/************************************************************************ 2540 * Allocate a request that will be used to send a BMIC command. Do some 2541 * of the common setup here to avoid duplicating it everywhere else. 2542 */ 2543static int 2544ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2545 int opcode, void **bufp, size_t bufsize) 2546{ 2547 struct ciss_request *cr; 2548 struct ciss_command *cc; 2549 struct ciss_bmic_cdb *cbc; 2550 void *buf; 2551 int error; 2552 int dataout; 2553 2554 debug_called(2); 2555 2556 cr = NULL; 2557 buf = NULL; 2558 2559 /* 2560 * Get a request. 2561 */ 2562 if ((error = ciss_get_request(sc, &cr)) != 0) 2563 goto out; 2564 2565 /* 2566 * Allocate data storage if requested, determine the data direction. 2567 */ 2568 dataout = 0; 2569 if ((bufsize > 0) && (bufp != NULL)) { 2570 if (*bufp == NULL) { 2571 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2572 error = ENOMEM; 2573 goto out; 2574 } 2575 } else { 2576 buf = *bufp; 2577 dataout = 1; /* we are given a buffer, so we are writing */ 2578 } 2579 } 2580 2581 /* 2582 * Build a CISS BMIC command to get the logical drive ID. 2583 */ 2584 cr->cr_data = buf; 2585 cr->cr_length = bufsize; 2586 if (!dataout) 2587 cr->cr_flags = CISS_REQ_DATAIN; 2588 2589 cc = cr->cr_cc; 2590 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2591 cc->header.address.physical.bus = 0; 2592 cc->header.address.physical.target = 0; 2593 cc->cdb.cdb_length = sizeof(*cbc); 2594 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2595 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2596 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2597 cc->cdb.timeout = 0; 2598 2599 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2600 bzero(cbc, sizeof(*cbc)); 2601 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2602 cbc->bmic_opcode = opcode; 2603 cbc->size = htons((u_int16_t)bufsize); 2604 2605out: 2606 if (error) { 2607 if (cr != NULL) 2608 ciss_release_request(cr); 2609 } else { 2610 *crp = cr; 2611 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2612 *bufp = buf; 2613 } 2614 return(error); 2615} 2616 2617/************************************************************************ 2618 * Handle a command passed in from userspace. 2619 */ 2620static int 2621ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2622{ 2623 struct ciss_request *cr; 2624 struct ciss_command *cc; 2625 struct ciss_error_info *ce; 2626 int error = 0; 2627 2628 debug_called(1); 2629 2630 cr = NULL; 2631 2632 /* 2633 * Get a request. 2634 */ 2635 while (ciss_get_request(sc, &cr) != 0) 2636 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2637 cc = cr->cr_cc; 2638 2639 /* 2640 * Allocate an in-kernel databuffer if required, copy in user data. 2641 */ 2642 mtx_unlock(&sc->ciss_mtx); 2643 cr->cr_length = ioc->buf_size; 2644 if (ioc->buf_size > 0) { 2645 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2646 error = ENOMEM; 2647 goto out_unlocked; 2648 } 2649 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2650 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2651 goto out_unlocked; 2652 } 2653 } 2654 2655 /* 2656 * Build the request based on the user command. 2657 */ 2658 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2659 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2660 2661 /* XXX anything else to populate here? */ 2662 mtx_lock(&sc->ciss_mtx); 2663 2664 /* 2665 * Run the command. 2666 */ 2667 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2668 debug(0, "request failed - %d", error); 2669 goto out; 2670 } 2671 2672 /* 2673 * Check to see if the command succeeded. 2674 */ 2675 ce = (struct ciss_error_info *)&(cc->sg[0]); 2676 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2677 bzero(ce, sizeof(*ce)); 2678 2679 /* 2680 * Copy the results back to the user. 2681 */ 2682 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2683 mtx_unlock(&sc->ciss_mtx); 2684 if ((ioc->buf_size > 0) && 2685 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2686 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2687 goto out_unlocked; 2688 } 2689 2690 /* done OK */ 2691 error = 0; 2692 2693out_unlocked: 2694 mtx_lock(&sc->ciss_mtx); 2695 2696out: 2697 if ((cr != NULL) && (cr->cr_data != NULL)) 2698 free(cr->cr_data, CISS_MALLOC_CLASS); 2699 if (cr != NULL) 2700 ciss_release_request(cr); 2701 return(error); 2702} 2703 2704/************************************************************************ 2705 * Map a request into bus-visible space, initialise the scatter/gather 2706 * list. 2707 */ 2708static int 2709ciss_map_request(struct ciss_request *cr) 2710{ 2711 struct ciss_softc *sc; 2712 int error = 0; 2713 2714 debug_called(2); 2715 2716 sc = cr->cr_sc; 2717 2718 /* check that mapping is necessary */ 2719 if (cr->cr_flags & CISS_REQ_MAPPED) 2720 return(0); 2721 2722 cr->cr_flags |= CISS_REQ_MAPPED; 2723 2724 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2725 BUS_DMASYNC_PREWRITE); 2726 2727 if (cr->cr_data != NULL) { 2728 if (cr->cr_flags & CISS_REQ_CCB) 2729 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2730 cr->cr_datamap, cr->cr_data, 2731 ciss_request_map_helper, cr, 0); 2732 else 2733 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2734 cr->cr_data, cr->cr_length, 2735 ciss_request_map_helper, cr, 0); 2736 if (error != 0) 2737 return (error); 2738 } else { 2739 /* 2740 * Post the command to the adapter. 2741 */ 2742 cr->cr_sg_tag = CISS_SG_NONE; 2743 cr->cr_flags |= CISS_REQ_BUSY; 2744 if (sc->ciss_perf) 2745 CISS_TL_PERF_POST_CMD(sc, cr); 2746 else 2747 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2748 } 2749 2750 return(0); 2751} 2752 2753static void 2754ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2755{ 2756 struct ciss_command *cc; 2757 struct ciss_request *cr; 2758 struct ciss_softc *sc; 2759 int i; 2760 2761 debug_called(2); 2762 2763 cr = (struct ciss_request *)arg; 2764 sc = cr->cr_sc; 2765 cc = cr->cr_cc; 2766 2767 for (i = 0; i < nseg; i++) { 2768 cc->sg[i].address = segs[i].ds_addr; 2769 cc->sg[i].length = segs[i].ds_len; 2770 cc->sg[i].extension = 0; 2771 } 2772 /* we leave the s/g table entirely within the command */ 2773 cc->header.sg_in_list = nseg; 2774 cc->header.sg_total = nseg; 2775 2776 if (cr->cr_flags & CISS_REQ_DATAIN) 2777 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2778 if (cr->cr_flags & CISS_REQ_DATAOUT) 2779 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2780 2781 if (nseg == 0) 2782 cr->cr_sg_tag = CISS_SG_NONE; 2783 else if (nseg == 1) 2784 cr->cr_sg_tag = CISS_SG_1; 2785 else if (nseg == 2) 2786 cr->cr_sg_tag = CISS_SG_2; 2787 else if (nseg <= 4) 2788 cr->cr_sg_tag = CISS_SG_4; 2789 else if (nseg <= 8) 2790 cr->cr_sg_tag = CISS_SG_8; 2791 else if (nseg <= 16) 2792 cr->cr_sg_tag = CISS_SG_16; 2793 else if (nseg <= 32) 2794 cr->cr_sg_tag = CISS_SG_32; 2795 else 2796 cr->cr_sg_tag = CISS_SG_MAX; 2797 2798 /* 2799 * Post the command to the adapter. 2800 */ 2801 cr->cr_flags |= CISS_REQ_BUSY; 2802 if (sc->ciss_perf) 2803 CISS_TL_PERF_POST_CMD(sc, cr); 2804 else 2805 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2806} 2807 2808/************************************************************************ 2809 * Unmap a request from bus-visible space. 2810 */ 2811static void 2812ciss_unmap_request(struct ciss_request *cr) 2813{ 2814 struct ciss_softc *sc; 2815 2816 debug_called(2); 2817 2818 sc = cr->cr_sc; 2819 2820 /* check that unmapping is necessary */ 2821 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2822 return; 2823 2824 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2825 BUS_DMASYNC_POSTWRITE); 2826 2827 if (cr->cr_data == NULL) 2828 goto out; 2829 2830 if (cr->cr_flags & CISS_REQ_DATAIN) 2831 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2832 if (cr->cr_flags & CISS_REQ_DATAOUT) 2833 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2834 2835 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2836out: 2837 cr->cr_flags &= ~CISS_REQ_MAPPED; 2838} 2839 2840/************************************************************************ 2841 * Attach the driver to CAM. 2842 * 2843 * We put all the logical drives on a single SCSI bus. 2844 */ 2845static int 2846ciss_cam_init(struct ciss_softc *sc) 2847{ 2848 int i, maxbus; 2849 2850 debug_called(1); 2851 2852 /* 2853 * Allocate a devq. We can reuse this for the masked physical 2854 * devices if we decide to export these as well. 2855 */ 2856 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2857 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2858 return(ENOMEM); 2859 } 2860 2861 /* 2862 * Create a SIM. 2863 * 2864 * This naturally wastes a bit of memory. The alternative is to allocate 2865 * and register each bus as it is found, and then track them on a linked 2866 * list. Unfortunately, the driver has a few places where it needs to 2867 * look up the SIM based solely on bus number, and it's unclear whether 2868 * a list traversal would work for these situations. 2869 */ 2870 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2871 CISS_PHYSICAL_BASE); 2872 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2873 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2874 if (sc->ciss_cam_sim == NULL) { 2875 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2876 return(ENOMEM); 2877 } 2878 2879 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2880 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2881 "ciss", sc, 2882 device_get_unit(sc->ciss_dev), 2883 &sc->ciss_mtx, 2884 2, 2885 sc->ciss_max_requests - 2, 2886 sc->ciss_cam_devq)) == NULL) { 2887 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2888 return(ENOMEM); 2889 } 2890 2891 /* 2892 * Register bus with this SIM. 2893 */ 2894 mtx_lock(&sc->ciss_mtx); 2895 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2896 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2897 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2898 mtx_unlock(&sc->ciss_mtx); 2899 return (ENXIO); 2900 } 2901 } 2902 mtx_unlock(&sc->ciss_mtx); 2903 } 2904 2905 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2906 CISS_PHYSICAL_BASE; i++) { 2907 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2908 "ciss", sc, 2909 device_get_unit(sc->ciss_dev), 2910 &sc->ciss_mtx, 1, 2911 sc->ciss_max_requests - 2, 2912 sc->ciss_cam_devq)) == NULL) { 2913 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2914 return (ENOMEM); 2915 } 2916 2917 mtx_lock(&sc->ciss_mtx); 2918 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2919 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2920 mtx_unlock(&sc->ciss_mtx); 2921 return (ENXIO); 2922 } 2923 mtx_unlock(&sc->ciss_mtx); 2924 } 2925 2926 return(0); 2927} 2928 2929/************************************************************************ 2930 * Initiate a rescan of the 'logical devices' SIM 2931 */ 2932static void 2933ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2934{ 2935 union ccb *ccb; 2936 2937 debug_called(1); 2938 2939 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2940 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2941 return; 2942 } 2943 2944 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2945 cam_sim_path(sc->ciss_cam_sim[bus]), 2946 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2947 ciss_printf(sc, "rescan failed (can't create path)\n"); 2948 xpt_free_ccb(ccb); 2949 return; 2950 } 2951 xpt_rescan(ccb); 2952 /* scan is now in progress */ 2953} 2954 2955/************************************************************************ 2956 * Handle requests coming from CAM 2957 */ 2958static void 2959ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2960{ 2961 struct ciss_softc *sc; 2962 struct ccb_scsiio *csio; 2963 int bus, target; 2964 int physical; 2965 2966 sc = cam_sim_softc(sim); 2967 bus = cam_sim_bus(sim); 2968 csio = (struct ccb_scsiio *)&ccb->csio; 2969 target = csio->ccb_h.target_id; 2970 physical = CISS_IS_PHYSICAL(bus); 2971 2972 switch (ccb->ccb_h.func_code) { 2973 2974 /* perform SCSI I/O */ 2975 case XPT_SCSI_IO: 2976 if (!ciss_cam_action_io(sim, csio)) 2977 return; 2978 break; 2979 2980 /* perform geometry calculations */ 2981 case XPT_CALC_GEOMETRY: 2982 { 2983 struct ccb_calc_geometry *ccg = &ccb->ccg; 2984 struct ciss_ldrive *ld; 2985 2986 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2987 2988 ld = NULL; 2989 if (!physical) 2990 ld = &sc->ciss_logical[bus][target]; 2991 2992 /* 2993 * Use the cached geometry settings unless the fault tolerance 2994 * is invalid. 2995 */ 2996 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2997 u_int32_t secs_per_cylinder; 2998 2999 ccg->heads = 255; 3000 ccg->secs_per_track = 32; 3001 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3002 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3003 } else { 3004 ccg->heads = ld->cl_geometry.heads; 3005 ccg->secs_per_track = ld->cl_geometry.sectors; 3006 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3007 } 3008 ccb->ccb_h.status = CAM_REQ_CMP; 3009 break; 3010 } 3011 3012 /* handle path attribute inquiry */ 3013 case XPT_PATH_INQ: 3014 { 3015 struct ccb_pathinq *cpi = &ccb->cpi; 3016 int sg_length; 3017 3018 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3019 3020 cpi->version_num = 1; 3021 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3022 cpi->target_sprt = 0; 3023 cpi->hba_misc = 0; 3024 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3025 cpi->max_lun = 0; /* 'logical drive' channel only */ 3026 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3027 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3028 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3029 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3030 cpi->unit_number = cam_sim_unit(sim); 3031 cpi->bus_id = cam_sim_bus(sim); 3032 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3033 cpi->transport = XPORT_SPI; 3034 cpi->transport_version = 2; 3035 cpi->protocol = PROTO_SCSI; 3036 cpi->protocol_version = SCSI_REV_2; 3037 if (sc->ciss_cfg->max_sg_length == 0) { 3038 sg_length = 17; 3039 } else { 3040 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3041 * Confusing bit here. max_sg_length is usually a power of 2. We always 3042 * need to subtract 1 to account for partial pages. Then we need to 3043 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3044 * Add 1 so we can then subtract it out in the assignment to maxio. 3045 * The reason for all these shenanigans is to create a maxio value that 3046 * creates IO operations to volumes that yield consistent operations 3047 * with good performance. 3048 */ 3049 sg_length = sc->ciss_cfg->max_sg_length - 1; 3050 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3051 } 3052 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3053 ccb->ccb_h.status = CAM_REQ_CMP; 3054 break; 3055 } 3056 3057 case XPT_GET_TRAN_SETTINGS: 3058 { 3059 struct ccb_trans_settings *cts = &ccb->cts; 3060 int bus, target; 3061 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3062 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3063 3064 bus = cam_sim_bus(sim); 3065 target = cts->ccb_h.target_id; 3066 3067 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3068 /* disconnect always OK */ 3069 cts->protocol = PROTO_SCSI; 3070 cts->protocol_version = SCSI_REV_2; 3071 cts->transport = XPORT_SPI; 3072 cts->transport_version = 2; 3073 3074 spi->valid = CTS_SPI_VALID_DISC; 3075 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3076 3077 scsi->valid = CTS_SCSI_VALID_TQ; 3078 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3079 3080 cts->ccb_h.status = CAM_REQ_CMP; 3081 break; 3082 } 3083 3084 default: /* we can't do this */ 3085 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3086 ccb->ccb_h.status = CAM_REQ_INVALID; 3087 break; 3088 } 3089 3090 xpt_done(ccb); 3091} 3092 3093/************************************************************************ 3094 * Handle a CAM SCSI I/O request. 3095 */ 3096static int 3097ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3098{ 3099 struct ciss_softc *sc; 3100 int bus, target; 3101 struct ciss_request *cr; 3102 struct ciss_command *cc; 3103 int error; 3104 3105 sc = cam_sim_softc(sim); 3106 bus = cam_sim_bus(sim); 3107 target = csio->ccb_h.target_id; 3108 3109 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3110 3111 /* check that the CDB pointer is not to a physical address */ 3112 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3113 debug(3, " CDB pointer is to physical address"); 3114 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3115 } 3116 3117 /* abandon aborted ccbs or those that have failed validation */ 3118 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3119 debug(3, "abandoning CCB due to abort/validation failure"); 3120 return(EINVAL); 3121 } 3122 3123 /* handle emulation of some SCSI commands ourself */ 3124 if (ciss_cam_emulate(sc, csio)) 3125 return(0); 3126 3127 /* 3128 * Get a request to manage this command. If we can't, return the 3129 * ccb, freeze the queue and flag so that we unfreeze it when a 3130 * request completes. 3131 */ 3132 if ((error = ciss_get_request(sc, &cr)) != 0) { 3133 xpt_freeze_simq(sim, 1); 3134 sc->ciss_flags |= CISS_FLAG_BUSY; 3135 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3136 return(error); 3137 } 3138 3139 /* 3140 * Build the command. 3141 */ 3142 cc = cr->cr_cc; 3143 cr->cr_data = csio; 3144 cr->cr_length = csio->dxfer_len; 3145 cr->cr_complete = ciss_cam_complete; 3146 cr->cr_private = csio; 3147 3148 /* 3149 * Target the right logical volume. 3150 */ 3151 if (CISS_IS_PHYSICAL(bus)) 3152 cc->header.address = 3153 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3154 else 3155 cc->header.address = 3156 sc->ciss_logical[bus][target].cl_address; 3157 cc->cdb.cdb_length = csio->cdb_len; 3158 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3159 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3160 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3161 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3162 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3163 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3164 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3165 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3166 } else { 3167 cr->cr_data = NULL; 3168 cr->cr_flags = 0; 3169 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3170 } 3171 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3172 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3173 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3174 } else { 3175 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3176 } 3177 3178 /* 3179 * Submit the request to the adapter. 3180 * 3181 * Note that this may fail if we're unable to map the request (and 3182 * if we ever learn a transport layer other than simple, may fail 3183 * if the adapter rejects the command). 3184 */ 3185 if ((error = ciss_start(cr)) != 0) { 3186 xpt_freeze_simq(sim, 1); 3187 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3188 if (error == EINPROGRESS) { 3189 error = 0; 3190 } else { 3191 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3192 ciss_release_request(cr); 3193 } 3194 return(error); 3195 } 3196 3197 return(0); 3198} 3199 3200/************************************************************************ 3201 * Emulate SCSI commands the adapter doesn't handle as we might like. 3202 */ 3203static int 3204ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3205{ 3206 int bus, target; 3207 u_int8_t opcode; 3208 3209 target = csio->ccb_h.target_id; 3210 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3211 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3212 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3213 3214 if (CISS_IS_PHYSICAL(bus)) { 3215 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3216 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3217 xpt_done((union ccb *)csio); 3218 return(1); 3219 } else 3220 return(0); 3221 } 3222 3223 /* 3224 * Handle requests for volumes that don't exist or are not online. 3225 * A selection timeout is slightly better than an illegal request. 3226 * Other errors might be better. 3227 */ 3228 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3229 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3230 xpt_done((union ccb *)csio); 3231 return(1); 3232 } 3233 3234 /* if we have to fake Synchronise Cache */ 3235 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3236 /* 3237 * If this is a Synchronise Cache command, typically issued when 3238 * a device is closed, flush the adapter and complete now. 3239 */ 3240 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3241 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3242 ciss_flush_adapter(sc); 3243 csio->ccb_h.status |= CAM_REQ_CMP; 3244 xpt_done((union ccb *)csio); 3245 return(1); 3246 } 3247 } 3248 3249 /* 3250 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3251 * at least one LUN field to be pre created for us, so snag it and fill in 3252 * the least significant byte indicating 1 LUN here. Emulate the command 3253 * return to shut up warning on console of a CDB error. swb 3254 */ 3255 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3256 csio->data_ptr[3] = 8; 3257 csio->ccb_h.status |= CAM_REQ_CMP; 3258 xpt_done((union ccb *)csio); 3259 return(1); 3260 } 3261 3262 return(0); 3263} 3264 3265/************************************************************************ 3266 * Check for possibly-completed commands. 3267 */ 3268static void 3269ciss_cam_poll(struct cam_sim *sim) 3270{ 3271 cr_qhead_t qh; 3272 struct ciss_softc *sc = cam_sim_softc(sim); 3273 3274 debug_called(2); 3275 3276 STAILQ_INIT(&qh); 3277 if (sc->ciss_perf) 3278 ciss_perf_done(sc, &qh); 3279 else 3280 ciss_done(sc, &qh); 3281 ciss_complete(sc, &qh); 3282} 3283 3284/************************************************************************ 3285 * Handle completion of a command - pass results back through the CCB 3286 */ 3287static void 3288ciss_cam_complete(struct ciss_request *cr) 3289{ 3290 struct ciss_softc *sc; 3291 struct ciss_command *cc; 3292 struct ciss_error_info *ce; 3293 struct ccb_scsiio *csio; 3294 int scsi_status; 3295 int command_status; 3296 3297 debug_called(2); 3298 3299 sc = cr->cr_sc; 3300 cc = cr->cr_cc; 3301 ce = (struct ciss_error_info *)&(cc->sg[0]); 3302 csio = (struct ccb_scsiio *)cr->cr_private; 3303 3304 /* 3305 * Extract status values from request. 3306 */ 3307 ciss_report_request(cr, &command_status, &scsi_status); 3308 csio->scsi_status = scsi_status; 3309 3310 /* 3311 * Handle specific SCSI status values. 3312 */ 3313 switch(scsi_status) { 3314 /* no status due to adapter error */ 3315 case -1: 3316 debug(0, "adapter error"); 3317 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3318 break; 3319 3320 /* no status due to command completed OK */ 3321 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3322 debug(2, "SCSI_STATUS_OK"); 3323 csio->ccb_h.status |= CAM_REQ_CMP; 3324 break; 3325 3326 /* check condition, sense data included */ 3327 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3328 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3329 ce->sense_length, ce->residual_count); 3330 bzero(&csio->sense_data, SSD_FULL_SIZE); 3331 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3332 if (csio->sense_len > ce->sense_length) 3333 csio->sense_resid = csio->sense_len - ce->sense_length; 3334 else 3335 csio->sense_resid = 0; 3336 csio->resid = ce->residual_count; 3337 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3338#ifdef CISS_DEBUG 3339 { 3340 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3341 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3342 csio->sense_resid, /*show_errors*/ 1)); 3343 } 3344#endif 3345 break; 3346 3347 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3348 debug(0, "SCSI_STATUS_BUSY"); 3349 csio->ccb_h.status |= CAM_SCSI_BUSY; 3350 break; 3351 3352 default: 3353 debug(0, "unknown status 0x%x", csio->scsi_status); 3354 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3355 break; 3356 } 3357 3358 /* handle post-command fixup */ 3359 ciss_cam_complete_fixup(sc, csio); 3360 3361 ciss_release_request(cr); 3362 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3363 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3364 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3365 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3366 else 3367 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3368 } 3369 xpt_done((union ccb *)csio); 3370} 3371 3372/******************************************************************************** 3373 * Fix up the result of some commands here. 3374 */ 3375static void 3376ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3377{ 3378 struct scsi_inquiry_data *inq; 3379 struct ciss_ldrive *cl; 3380 uint8_t *cdb; 3381 int bus, target; 3382 3383 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3384 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3385 if (cdb[0] == INQUIRY && 3386 (cdb[1] & SI_EVPD) == 0 && 3387 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3388 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3389 3390 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3391 target = csio->ccb_h.target_id; 3392 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3393 3394 /* 3395 * If the controller is in JBOD mode, there are no logical volumes. 3396 * Let the disks be probed and dealt with via CAM. Else, mask off 3397 * the physical disks and setup the parts of the inq structure for 3398 * the logical volume. swb 3399 */ 3400 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3401 if (CISS_IS_PHYSICAL(bus)) { 3402 if (SID_TYPE(inq) == T_DIRECT) 3403 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3404 return; 3405 } 3406 cl = &sc->ciss_logical[bus][target]; 3407 3408 padstr(inq->vendor, "HP", 3409 SID_VENDOR_SIZE); 3410 padstr(inq->product, 3411 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3412 SID_PRODUCT_SIZE); 3413 padstr(inq->revision, 3414 ciss_name_ldrive_status(cl->cl_lstatus->status), 3415 SID_REVISION_SIZE); 3416 } 3417 } 3418} 3419 3420 3421/******************************************************************************** 3422 * Name the device at (target) 3423 * 3424 * XXX is this strictly correct? 3425 */ 3426static int 3427ciss_name_device(struct ciss_softc *sc, int bus, int target) 3428{ 3429 struct cam_periph *periph; 3430 struct cam_path *path; 3431 int status; 3432 3433 if (CISS_IS_PHYSICAL(bus)) 3434 return (0); 3435 3436 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3437 target, 0); 3438 3439 if (status == CAM_REQ_CMP) { 3440 mtx_lock(&sc->ciss_mtx); 3441 xpt_path_lock(path); 3442 periph = cam_periph_find(path, NULL); 3443 xpt_path_unlock(path); 3444 mtx_unlock(&sc->ciss_mtx); 3445 xpt_free_path(path); 3446 if (periph != NULL) { 3447 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3448 periph->periph_name, periph->unit_number); 3449 return(0); 3450 } 3451 } 3452 sc->ciss_logical[bus][target].cl_name[0] = 0; 3453 return(ENOENT); 3454} 3455 3456/************************************************************************ 3457 * Periodic status monitoring. 3458 */ 3459static void 3460ciss_periodic(void *arg) 3461{ 3462 struct ciss_softc *sc; 3463 struct ciss_request *cr = NULL; 3464 struct ciss_command *cc = NULL; 3465 int error = 0; 3466 3467 debug_called(1); 3468 3469 sc = (struct ciss_softc *)arg; 3470 3471 /* 3472 * Check the adapter heartbeat. 3473 */ 3474 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3475 sc->ciss_heart_attack++; 3476 debug(0, "adapter heart attack in progress 0x%x/%d", 3477 sc->ciss_heartbeat, sc->ciss_heart_attack); 3478 if (sc->ciss_heart_attack == 3) { 3479 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3480 ciss_disable_adapter(sc); 3481 return; 3482 } 3483 } else { 3484 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3485 sc->ciss_heart_attack = 0; 3486 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3487 } 3488 3489 /* 3490 * Send the NOP message and wait for a response. 3491 */ 3492 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3493 cc = cr->cr_cc; 3494 cr->cr_complete = ciss_nop_complete; 3495 cc->cdb.cdb_length = 1; 3496 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3497 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3498 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3499 cc->cdb.timeout = 0; 3500 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3501 3502 if ((error = ciss_start(cr)) != 0) { 3503 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3504 } 3505 } 3506 3507 /* 3508 * If the notify event request has died for some reason, or has 3509 * not started yet, restart it. 3510 */ 3511 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3512 debug(0, "(re)starting Event Notify chain"); 3513 ciss_notify_event(sc); 3514 } 3515 3516 /* 3517 * Reschedule. 3518 */ 3519 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3520} 3521 3522static void 3523ciss_nop_complete(struct ciss_request *cr) 3524{ 3525 struct ciss_softc *sc; 3526 static int first_time = 1; 3527 3528 sc = cr->cr_sc; 3529 if (ciss_report_request(cr, NULL, NULL) != 0) { 3530 if (first_time == 1) { 3531 first_time = 0; 3532 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3533 } 3534 } 3535 3536 ciss_release_request(cr); 3537} 3538 3539/************************************************************************ 3540 * Disable the adapter. 3541 * 3542 * The all requests in completed queue is failed with hardware error. 3543 * This will cause failover in a multipath configuration. 3544 */ 3545static void 3546ciss_disable_adapter(struct ciss_softc *sc) 3547{ 3548 cr_qhead_t qh; 3549 struct ciss_request *cr; 3550 struct ciss_command *cc; 3551 struct ciss_error_info *ce; 3552 int i; 3553 3554 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3555 pci_disable_busmaster(sc->ciss_dev); 3556 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3557 3558 for (i = 1; i < sc->ciss_max_requests; i++) { 3559 cr = &sc->ciss_request[i]; 3560 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3561 continue; 3562 3563 cc = cr->cr_cc; 3564 ce = (struct ciss_error_info *)&(cc->sg[0]); 3565 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3566 ciss_enqueue_complete(cr, &qh); 3567 } 3568 3569 for (;;) { 3570 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3571 break; 3572 3573 /* 3574 * If the request has a callback, invoke it. 3575 */ 3576 if (cr->cr_complete != NULL) { 3577 cr->cr_complete(cr); 3578 continue; 3579 } 3580 3581 /* 3582 * If someone is sleeping on this request, wake them up. 3583 */ 3584 if (cr->cr_flags & CISS_REQ_SLEEP) { 3585 cr->cr_flags &= ~CISS_REQ_SLEEP; 3586 wakeup(cr); 3587 continue; 3588 } 3589 } 3590} 3591 3592/************************************************************************ 3593 * Request a notification response from the adapter. 3594 * 3595 * If (cr) is NULL, this is the first request of the adapter, so 3596 * reset the adapter's message pointer and start with the oldest 3597 * message available. 3598 */ 3599static void 3600ciss_notify_event(struct ciss_softc *sc) 3601{ 3602 struct ciss_request *cr; 3603 struct ciss_command *cc; 3604 struct ciss_notify_cdb *cnc; 3605 int error; 3606 3607 debug_called(1); 3608 3609 cr = sc->ciss_periodic_notify; 3610 3611 /* get a request if we don't already have one */ 3612 if (cr == NULL) { 3613 if ((error = ciss_get_request(sc, &cr)) != 0) { 3614 debug(0, "can't get notify event request"); 3615 goto out; 3616 } 3617 sc->ciss_periodic_notify = cr; 3618 cr->cr_complete = ciss_notify_complete; 3619 debug(1, "acquired request %d", cr->cr_tag); 3620 } 3621 3622 /* 3623 * Get a databuffer if we don't already have one, note that the 3624 * adapter command wants a larger buffer than the actual 3625 * structure. 3626 */ 3627 if (cr->cr_data == NULL) { 3628 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3629 debug(0, "can't get notify event request buffer"); 3630 error = ENOMEM; 3631 goto out; 3632 } 3633 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3634 } 3635 3636 /* re-setup the request's command (since we never release it) XXX overkill*/ 3637 ciss_preen_command(cr); 3638 3639 /* (re)build the notify event command */ 3640 cc = cr->cr_cc; 3641 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3642 cc->header.address.physical.bus = 0; 3643 cc->header.address.physical.target = 0; 3644 3645 cc->cdb.cdb_length = sizeof(*cnc); 3646 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3647 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3648 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3649 cc->cdb.timeout = 0; /* no timeout, we hope */ 3650 3651 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3652 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3653 cnc->opcode = CISS_OPCODE_READ; 3654 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3655 cnc->timeout = 0; /* no timeout, we hope */ 3656 cnc->synchronous = 0; 3657 cnc->ordered = 0; 3658 cnc->seek_to_oldest = 0; 3659 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3660 cnc->new_only = 1; 3661 else 3662 cnc->new_only = 0; 3663 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3664 3665 /* submit the request */ 3666 error = ciss_start(cr); 3667 3668 out: 3669 if (error) { 3670 if (cr != NULL) { 3671 if (cr->cr_data != NULL) 3672 free(cr->cr_data, CISS_MALLOC_CLASS); 3673 ciss_release_request(cr); 3674 } 3675 sc->ciss_periodic_notify = NULL; 3676 debug(0, "can't submit notify event request"); 3677 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3678 } else { 3679 debug(1, "notify event submitted"); 3680 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3681 } 3682} 3683 3684static void 3685ciss_notify_complete(struct ciss_request *cr) 3686{ 3687 struct ciss_command *cc; 3688 struct ciss_notify *cn; 3689 struct ciss_softc *sc; 3690 int scsi_status; 3691 int command_status; 3692 debug_called(1); 3693 3694 cc = cr->cr_cc; 3695 cn = (struct ciss_notify *)cr->cr_data; 3696 sc = cr->cr_sc; 3697 3698 /* 3699 * Report request results, decode status. 3700 */ 3701 ciss_report_request(cr, &command_status, &scsi_status); 3702 3703 /* 3704 * Abort the chain on a fatal error. 3705 * 3706 * XXX which of these are actually errors? 3707 */ 3708 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3709 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3710 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3711 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3712 ciss_name_command_status(command_status)); 3713 ciss_release_request(cr); 3714 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3715 return; 3716 } 3717 3718 /* 3719 * If the adapter gave us a text message, print it. 3720 */ 3721 if (cn->message[0] != 0) 3722 ciss_printf(sc, "*** %.80s\n", cn->message); 3723 3724 debug(0, "notify event class %d subclass %d detail %d", 3725 cn->class, cn->subclass, cn->detail); 3726 3727 /* 3728 * If the response indicates that the notifier has been aborted, 3729 * release the notifier command. 3730 */ 3731 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3732 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3733 (cn->detail == 1)) { 3734 debug(0, "notifier exiting"); 3735 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3736 ciss_release_request(cr); 3737 sc->ciss_periodic_notify = NULL; 3738 wakeup(&sc->ciss_periodic_notify); 3739 } else { 3740 /* Handle notify events in a kernel thread */ 3741 ciss_enqueue_notify(cr); 3742 sc->ciss_periodic_notify = NULL; 3743 wakeup(&sc->ciss_periodic_notify); 3744 wakeup(&sc->ciss_notify); 3745 } 3746 /* 3747 * Send a new notify event command, if we're not aborting. 3748 */ 3749 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3750 ciss_notify_event(sc); 3751 } 3752} 3753 3754/************************************************************************ 3755 * Abort the Notify Event chain. 3756 * 3757 * Note that we can't just abort the command in progress; we have to 3758 * explicitly issue an Abort Notify Event command in order for the 3759 * adapter to clean up correctly. 3760 * 3761 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3762 * the chain will not restart itself. 3763 */ 3764static int 3765ciss_notify_abort(struct ciss_softc *sc) 3766{ 3767 struct ciss_request *cr; 3768 struct ciss_command *cc; 3769 struct ciss_notify_cdb *cnc; 3770 int error, command_status, scsi_status; 3771 3772 debug_called(1); 3773 3774 cr = NULL; 3775 error = 0; 3776 3777 /* verify that there's an outstanding command */ 3778 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3779 goto out; 3780 3781 /* get a command to issue the abort with */ 3782 if ((error = ciss_get_request(sc, &cr))) 3783 goto out; 3784 3785 /* get a buffer for the result */ 3786 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3787 debug(0, "can't get notify event request buffer"); 3788 error = ENOMEM; 3789 goto out; 3790 } 3791 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3792 3793 /* build the CDB */ 3794 cc = cr->cr_cc; 3795 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3796 cc->header.address.physical.bus = 0; 3797 cc->header.address.physical.target = 0; 3798 cc->cdb.cdb_length = sizeof(*cnc); 3799 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3800 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3801 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3802 cc->cdb.timeout = 0; /* no timeout, we hope */ 3803 3804 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3805 bzero(cnc, sizeof(*cnc)); 3806 cnc->opcode = CISS_OPCODE_WRITE; 3807 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3808 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3809 3810 ciss_print_request(cr); 3811 3812 /* 3813 * Submit the request and wait for it to complete. 3814 */ 3815 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3816 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3817 goto out; 3818 } 3819 3820 /* 3821 * Check response. 3822 */ 3823 ciss_report_request(cr, &command_status, &scsi_status); 3824 switch(command_status) { 3825 case CISS_CMD_STATUS_SUCCESS: 3826 break; 3827 case CISS_CMD_STATUS_INVALID_COMMAND: 3828 /* 3829 * Some older adapters don't support the CISS version of this 3830 * command. Fall back to using the BMIC version. 3831 */ 3832 error = ciss_notify_abort_bmic(sc); 3833 if (error != 0) 3834 goto out; 3835 break; 3836 3837 case CISS_CMD_STATUS_TARGET_STATUS: 3838 /* 3839 * This can happen if the adapter thinks there wasn't an outstanding 3840 * Notify Event command but we did. We clean up here. 3841 */ 3842 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3843 if (sc->ciss_periodic_notify != NULL) 3844 ciss_release_request(sc->ciss_periodic_notify); 3845 error = 0; 3846 goto out; 3847 } 3848 /* FALLTHROUGH */ 3849 3850 default: 3851 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3852 ciss_name_command_status(command_status)); 3853 error = EIO; 3854 goto out; 3855 } 3856 3857 /* 3858 * Sleep waiting for the notifier command to complete. Note 3859 * that if it doesn't, we may end up in a bad situation, since 3860 * the adapter may deliver it later. Also note that the adapter 3861 * requires the Notify Event command to be cancelled in order to 3862 * maintain internal bookkeeping. 3863 */ 3864 while (sc->ciss_periodic_notify != NULL) { 3865 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3866 if (error == EWOULDBLOCK) { 3867 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3868 break; 3869 } 3870 } 3871 3872 out: 3873 /* release the cancel request */ 3874 if (cr != NULL) { 3875 if (cr->cr_data != NULL) 3876 free(cr->cr_data, CISS_MALLOC_CLASS); 3877 ciss_release_request(cr); 3878 } 3879 if (error == 0) 3880 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3881 return(error); 3882} 3883 3884/************************************************************************ 3885 * Abort the Notify Event chain using a BMIC command. 3886 */ 3887static int 3888ciss_notify_abort_bmic(struct ciss_softc *sc) 3889{ 3890 struct ciss_request *cr; 3891 int error, command_status; 3892 3893 debug_called(1); 3894 3895 cr = NULL; 3896 error = 0; 3897 3898 /* verify that there's an outstanding command */ 3899 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3900 goto out; 3901 3902 /* 3903 * Build a BMIC command to cancel the Notify on Event command. 3904 * 3905 * Note that we are sending a CISS opcode here. Odd. 3906 */ 3907 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3908 NULL, 0)) != 0) 3909 goto out; 3910 3911 /* 3912 * Submit the request and wait for it to complete. 3913 */ 3914 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3915 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3916 goto out; 3917 } 3918 3919 /* 3920 * Check response. 3921 */ 3922 ciss_report_request(cr, &command_status, NULL); 3923 switch(command_status) { 3924 case CISS_CMD_STATUS_SUCCESS: 3925 break; 3926 default: 3927 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3928 ciss_name_command_status(command_status)); 3929 error = EIO; 3930 goto out; 3931 } 3932 3933out: 3934 if (cr != NULL) 3935 ciss_release_request(cr); 3936 return(error); 3937} 3938 3939/************************************************************************ 3940 * Handle rescanning all the logical volumes when a notify event 3941 * causes the drives to come online or offline. 3942 */ 3943static void 3944ciss_notify_rescan_logical(struct ciss_softc *sc) 3945{ 3946 struct ciss_lun_report *cll; 3947 struct ciss_ldrive *ld; 3948 int i, j, ndrives; 3949 3950 /* 3951 * We must rescan all logical volumes to get the right logical 3952 * drive address. 3953 */ 3954 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3955 sc->ciss_cfg->max_logical_supported); 3956 if (cll == NULL) 3957 return; 3958 3959 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3960 3961 /* 3962 * Delete any of the drives which were destroyed by the 3963 * firmware. 3964 */ 3965 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3966 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3967 ld = &sc->ciss_logical[i][j]; 3968 3969 if (ld->cl_update == 0) 3970 continue; 3971 3972 if (ld->cl_status != CISS_LD_ONLINE) { 3973 ciss_cam_rescan_target(sc, i, j); 3974 ld->cl_update = 0; 3975 if (ld->cl_ldrive) 3976 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3977 if (ld->cl_lstatus) 3978 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3979 3980 ld->cl_ldrive = NULL; 3981 ld->cl_lstatus = NULL; 3982 } 3983 } 3984 } 3985 3986 /* 3987 * Scan for new drives. 3988 */ 3989 for (i = 0; i < ndrives; i++) { 3990 int bus, target; 3991 3992 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3993 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3994 ld = &sc->ciss_logical[bus][target]; 3995 3996 if (ld->cl_update == 0) 3997 continue; 3998 3999 ld->cl_update = 0; 4000 ld->cl_address = cll->lun[i]; 4001 ld->cl_controller = &sc->ciss_controllers[bus]; 4002 if (ciss_identify_logical(sc, ld) == 0) { 4003 ciss_cam_rescan_target(sc, bus, target); 4004 } 4005 } 4006 free(cll, CISS_MALLOC_CLASS); 4007} 4008 4009/************************************************************************ 4010 * Handle a notify event relating to the status of a logical drive. 4011 * 4012 * XXX need to be able to defer some of these to properly handle 4013 * calling the "ID Physical drive" command, unless the 'extended' 4014 * drive IDs are always in BIG_MAP format. 4015 */ 4016static void 4017ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4018{ 4019 struct ciss_ldrive *ld; 4020 int bus, target; 4021 int rescan_ld; 4022 4023 debug_called(2); 4024 4025 bus = cn->device.physical.bus; 4026 target = cn->data.logical_status.logical_drive; 4027 ld = &sc->ciss_logical[bus][target]; 4028 4029 switch (cn->subclass) { 4030 case CISS_NOTIFY_LOGICAL_STATUS: 4031 switch (cn->detail) { 4032 case 0: 4033 ciss_name_device(sc, bus, target); 4034 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4035 cn->data.logical_status.logical_drive, ld->cl_name, 4036 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4037 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4038 cn->data.logical_status.spare_state, 4039 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4040 4041 /* 4042 * Update our idea of the drive's status. 4043 */ 4044 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4045 if (ld->cl_lstatus != NULL) 4046 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4047 4048 /* 4049 * Have CAM rescan the drive if its status has changed. 4050 */ 4051 rescan_ld = (cn->data.logical_status.previous_state != 4052 cn->data.logical_status.new_state) ? 1 : 0; 4053 if (rescan_ld) { 4054 ld->cl_update = 1; 4055 ciss_notify_rescan_logical(sc); 4056 } 4057 4058 break; 4059 4060 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4061 ciss_name_device(sc, bus, target); 4062 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4063 cn->data.logical_status.logical_drive, ld->cl_name); 4064 ciss_accept_media(sc, ld); 4065 4066 ld->cl_update = 1; 4067 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4068 ciss_notify_rescan_logical(sc); 4069 break; 4070 4071 case 2: 4072 case 3: 4073 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4074 cn->data.rebuild_aborted.logical_drive, 4075 ld->cl_name, 4076 (cn->detail == 2) ? "read" : "write"); 4077 break; 4078 } 4079 break; 4080 4081 case CISS_NOTIFY_LOGICAL_ERROR: 4082 if (cn->detail == 0) { 4083 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4084 cn->data.io_error.logical_drive, 4085 ld->cl_name, 4086 cn->data.io_error.failure_bus, 4087 cn->data.io_error.failure_drive); 4088 /* XXX should we take the drive down at this point, or will we be told? */ 4089 } 4090 break; 4091 4092 case CISS_NOTIFY_LOGICAL_SURFACE: 4093 if (cn->detail == 0) 4094 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4095 cn->data.consistency_completed.logical_drive, 4096 ld->cl_name); 4097 break; 4098 } 4099} 4100 4101/************************************************************************ 4102 * Handle a notify event relating to the status of a physical drive. 4103 */ 4104static void 4105ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4106{ 4107} 4108 4109/************************************************************************ 4110 * Handle a notify event relating to the status of a physical drive. 4111 */ 4112static void 4113ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4114{ 4115 struct ciss_lun_report *cll = NULL; 4116 int bus, target; 4117 4118 switch (cn->subclass) { 4119 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4120 case CISS_NOTIFY_HOTPLUG_NONDISK: 4121 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4122 target = 4123 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4124 4125 if (cn->detail == 0) { 4126 /* 4127 * Mark the device offline so that it'll start producing selection 4128 * timeouts to the upper layer. 4129 */ 4130 if ((bus >= 0) && (target >= 0)) 4131 sc->ciss_physical[bus][target].cp_online = 0; 4132 } else { 4133 /* 4134 * Rescan the physical lun list for new items 4135 */ 4136 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4137 sc->ciss_cfg->max_physical_supported); 4138 if (cll == NULL) { 4139 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4140 break; 4141 } 4142 ciss_filter_physical(sc, cll); 4143 } 4144 break; 4145 4146 default: 4147 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4148 return; 4149 } 4150 4151 if (cll != NULL) 4152 free(cll, CISS_MALLOC_CLASS); 4153} 4154 4155/************************************************************************ 4156 * Handle deferred processing of notify events. Notify events may need 4157 * sleep which is unsafe during an interrupt. 4158 */ 4159static void 4160ciss_notify_thread(void *arg) 4161{ 4162 struct ciss_softc *sc; 4163 struct ciss_request *cr; 4164 struct ciss_notify *cn; 4165 4166 sc = (struct ciss_softc *)arg; 4167#if __FreeBSD_version >= 500000 4168 mtx_lock(&sc->ciss_mtx); 4169#endif 4170 4171 for (;;) { 4172 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4173 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4174 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4175 } 4176 4177 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4178 break; 4179 4180 cr = ciss_dequeue_notify(sc); 4181 4182 if (cr == NULL) 4183 panic("cr null"); 4184 cn = (struct ciss_notify *)cr->cr_data; 4185 4186 switch (cn->class) { 4187 case CISS_NOTIFY_HOTPLUG: 4188 ciss_notify_hotplug(sc, cn); 4189 break; 4190 case CISS_NOTIFY_LOGICAL: 4191 ciss_notify_logical(sc, cn); 4192 break; 4193 case CISS_NOTIFY_PHYSICAL: 4194 ciss_notify_physical(sc, cn); 4195 break; 4196 } 4197 4198 ciss_release_request(cr); 4199 4200 } 4201 sc->ciss_notify_thread = NULL; 4202 wakeup(&sc->ciss_notify_thread); 4203 4204#if __FreeBSD_version >= 500000 4205 mtx_unlock(&sc->ciss_mtx); 4206#endif 4207 kproc_exit(0); 4208} 4209 4210/************************************************************************ 4211 * Start the notification kernel thread. 4212 */ 4213static void 4214ciss_spawn_notify_thread(struct ciss_softc *sc) 4215{ 4216 4217#if __FreeBSD_version > 500005 4218 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4219 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4220 device_get_unit(sc->ciss_dev))) 4221#else 4222 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4223 &sc->ciss_notify_thread, "ciss_notify%d", 4224 device_get_unit(sc->ciss_dev))) 4225#endif 4226 panic("Could not create notify thread\n"); 4227} 4228 4229/************************************************************************ 4230 * Kill the notification kernel thread. 4231 */ 4232static void 4233ciss_kill_notify_thread(struct ciss_softc *sc) 4234{ 4235 4236 if (sc->ciss_notify_thread == NULL) 4237 return; 4238 4239 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4240 wakeup(&sc->ciss_notify); 4241 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4242} 4243 4244/************************************************************************ 4245 * Print a request. 4246 */ 4247static void 4248ciss_print_request(struct ciss_request *cr) 4249{ 4250 struct ciss_softc *sc; 4251 struct ciss_command *cc; 4252 int i; 4253 4254 sc = cr->cr_sc; 4255 cc = cr->cr_cc; 4256 4257 ciss_printf(sc, "REQUEST @ %p\n", cr); 4258 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4259 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4260 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4261 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4262 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4263 switch(cc->header.address.mode.mode) { 4264 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4265 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4266 ciss_printf(sc, " physical bus %d target %d\n", 4267 cc->header.address.physical.bus, cc->header.address.physical.target); 4268 break; 4269 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4270 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4271 break; 4272 } 4273 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4274 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4275 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4276 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4277 cc->cdb.cdb_length, 4278 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4279 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4280 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4281 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4282 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4283 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4284 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4285 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4286 4287 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4288 /* XXX print error info */ 4289 } else { 4290 /* since we don't use chained s/g, don't support it here */ 4291 for (i = 0; i < cc->header.sg_in_list; i++) { 4292 if ((i % 4) == 0) 4293 ciss_printf(sc, " "); 4294 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4295 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4296 printf("\n"); 4297 } 4298 } 4299} 4300 4301/************************************************************************ 4302 * Print information about the status of a logical drive. 4303 */ 4304static void 4305ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4306{ 4307 int bus, target, i; 4308 4309 if (ld->cl_lstatus == NULL) { 4310 printf("does not exist\n"); 4311 return; 4312 } 4313 4314 /* print drive status */ 4315 switch(ld->cl_lstatus->status) { 4316 case CISS_LSTATUS_OK: 4317 printf("online\n"); 4318 break; 4319 case CISS_LSTATUS_INTERIM_RECOVERY: 4320 printf("in interim recovery mode\n"); 4321 break; 4322 case CISS_LSTATUS_READY_RECOVERY: 4323 printf("ready to begin recovery\n"); 4324 break; 4325 case CISS_LSTATUS_RECOVERING: 4326 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4327 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4328 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4329 bus, target, ld->cl_lstatus->blocks_to_recover); 4330 break; 4331 case CISS_LSTATUS_EXPANDING: 4332 printf("being expanded, %u blocks remaining\n", 4333 ld->cl_lstatus->blocks_to_recover); 4334 break; 4335 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4336 printf("queued for expansion\n"); 4337 break; 4338 case CISS_LSTATUS_FAILED: 4339 printf("queued for expansion\n"); 4340 break; 4341 case CISS_LSTATUS_WRONG_PDRIVE: 4342 printf("wrong physical drive inserted\n"); 4343 break; 4344 case CISS_LSTATUS_MISSING_PDRIVE: 4345 printf("missing a needed physical drive\n"); 4346 break; 4347 case CISS_LSTATUS_BECOMING_READY: 4348 printf("becoming ready\n"); 4349 break; 4350 } 4351 4352 /* print failed physical drives */ 4353 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4354 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4355 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4356 if (bus == -1) 4357 continue; 4358 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4359 ld->cl_lstatus->drive_failure_map[i]); 4360 } 4361} 4362 4363#ifdef CISS_DEBUG 4364#include "opt_ddb.h" 4365#ifdef DDB 4366#include <ddb/ddb.h> 4367/************************************************************************ 4368 * Print information about the controller/driver. 4369 */ 4370static void 4371ciss_print_adapter(struct ciss_softc *sc) 4372{ 4373 int i, j; 4374 4375 ciss_printf(sc, "ADAPTER:\n"); 4376 for (i = 0; i < CISSQ_COUNT; i++) { 4377 ciss_printf(sc, "%s %d/%d\n", 4378 i == 0 ? "free" : 4379 i == 1 ? "busy" : "complete", 4380 sc->ciss_qstat[i].q_length, 4381 sc->ciss_qstat[i].q_max); 4382 } 4383 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4384 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4385 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4386 4387 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4388 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4389 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4390 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4391 } 4392 } 4393 4394 /* XXX Should physical drives be printed out here? */ 4395 4396 for (i = 1; i < sc->ciss_max_requests; i++) 4397 ciss_print_request(sc->ciss_request + i); 4398} 4399 4400/* DDB hook */ 4401DB_COMMAND(ciss_prt, db_ciss_prt) 4402{ 4403 struct ciss_softc *sc; 4404 devclass_t dc; 4405 int maxciss, i; 4406 4407 dc = devclass_find("ciss"); 4408 if ( dc == NULL ) { 4409 printf("%s: can't find devclass!\n", __func__); 4410 return; 4411 } 4412 maxciss = devclass_get_maxunit(dc); 4413 for (i = 0; i < maxciss; i++) { 4414 sc = devclass_get_softc(dc, i); 4415 ciss_print_adapter(sc); 4416 } 4417} 4418#endif 4419#endif 4420 4421/************************************************************************ 4422 * Return a name for a logical drive status value. 4423 */ 4424static const char * 4425ciss_name_ldrive_status(int status) 4426{ 4427 switch (status) { 4428 case CISS_LSTATUS_OK: 4429 return("OK"); 4430 case CISS_LSTATUS_FAILED: 4431 return("failed"); 4432 case CISS_LSTATUS_NOT_CONFIGURED: 4433 return("not configured"); 4434 case CISS_LSTATUS_INTERIM_RECOVERY: 4435 return("interim recovery"); 4436 case CISS_LSTATUS_READY_RECOVERY: 4437 return("ready for recovery"); 4438 case CISS_LSTATUS_RECOVERING: 4439 return("recovering"); 4440 case CISS_LSTATUS_WRONG_PDRIVE: 4441 return("wrong physical drive inserted"); 4442 case CISS_LSTATUS_MISSING_PDRIVE: 4443 return("missing physical drive"); 4444 case CISS_LSTATUS_EXPANDING: 4445 return("expanding"); 4446 case CISS_LSTATUS_BECOMING_READY: 4447 return("becoming ready"); 4448 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4449 return("queued for expansion"); 4450 } 4451 return("unknown status"); 4452} 4453 4454/************************************************************************ 4455 * Return an online/offline/nonexistent value for a logical drive 4456 * status value. 4457 */ 4458static int 4459ciss_decode_ldrive_status(int status) 4460{ 4461 switch(status) { 4462 case CISS_LSTATUS_NOT_CONFIGURED: 4463 return(CISS_LD_NONEXISTENT); 4464 4465 case CISS_LSTATUS_OK: 4466 case CISS_LSTATUS_INTERIM_RECOVERY: 4467 case CISS_LSTATUS_READY_RECOVERY: 4468 case CISS_LSTATUS_RECOVERING: 4469 case CISS_LSTATUS_EXPANDING: 4470 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4471 return(CISS_LD_ONLINE); 4472 4473 case CISS_LSTATUS_FAILED: 4474 case CISS_LSTATUS_WRONG_PDRIVE: 4475 case CISS_LSTATUS_MISSING_PDRIVE: 4476 case CISS_LSTATUS_BECOMING_READY: 4477 default: 4478 return(CISS_LD_OFFLINE); 4479 } 4480} 4481 4482 4483/************************************************************************ 4484 * Return a name for a logical drive's organisation. 4485 */ 4486static const char * 4487ciss_name_ldrive_org(int org) 4488{ 4489 switch(org) { 4490 case CISS_LDRIVE_RAID0: 4491 return("RAID 0"); 4492 case CISS_LDRIVE_RAID1: 4493 return("RAID 1(1+0)"); 4494 case CISS_LDRIVE_RAID4: 4495 return("RAID 4"); 4496 case CISS_LDRIVE_RAID5: 4497 return("RAID 5"); 4498 case CISS_LDRIVE_RAID51: 4499 return("RAID 5+1"); 4500 case CISS_LDRIVE_RAIDADG: 4501 return("RAID ADG"); 4502 } 4503 return("unkown"); 4504} 4505 4506/************************************************************************ 4507 * Return a name for a command status value. 4508 */ 4509static const char * 4510ciss_name_command_status(int status) 4511{ 4512 switch(status) { 4513 case CISS_CMD_STATUS_SUCCESS: 4514 return("success"); 4515 case CISS_CMD_STATUS_TARGET_STATUS: 4516 return("target status"); 4517 case CISS_CMD_STATUS_DATA_UNDERRUN: 4518 return("data underrun"); 4519 case CISS_CMD_STATUS_DATA_OVERRUN: 4520 return("data overrun"); 4521 case CISS_CMD_STATUS_INVALID_COMMAND: 4522 return("invalid command"); 4523 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4524 return("protocol error"); 4525 case CISS_CMD_STATUS_HARDWARE_ERROR: 4526 return("hardware error"); 4527 case CISS_CMD_STATUS_CONNECTION_LOST: 4528 return("connection lost"); 4529 case CISS_CMD_STATUS_ABORTED: 4530 return("aborted"); 4531 case CISS_CMD_STATUS_ABORT_FAILED: 4532 return("abort failed"); 4533 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4534 return("unsolicited abort"); 4535 case CISS_CMD_STATUS_TIMEOUT: 4536 return("timeout"); 4537 case CISS_CMD_STATUS_UNABORTABLE: 4538 return("unabortable"); 4539 } 4540 return("unknown status"); 4541} 4542 4543/************************************************************************ 4544 * Handle an open on the control device. 4545 */ 4546static int 4547ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4548{ 4549 struct ciss_softc *sc; 4550 4551 debug_called(1); 4552 4553 sc = (struct ciss_softc *)dev->si_drv1; 4554 4555 /* we might want to veto if someone already has us open */ 4556 4557 mtx_lock(&sc->ciss_mtx); 4558 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4559 mtx_unlock(&sc->ciss_mtx); 4560 return(0); 4561} 4562 4563/************************************************************************ 4564 * Handle the last close on the control device. 4565 */ 4566static int 4567ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4568{ 4569 struct ciss_softc *sc; 4570 4571 debug_called(1); 4572 4573 sc = (struct ciss_softc *)dev->si_drv1; 4574 4575 mtx_lock(&sc->ciss_mtx); 4576 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4577 mtx_unlock(&sc->ciss_mtx); 4578 return (0); 4579} 4580 4581/******************************************************************************** 4582 * Handle adapter-specific control operations. 4583 * 4584 * Note that the API here is compatible with the Linux driver, in order to 4585 * simplify the porting of Compaq's userland tools. 4586 */ 4587static int 4588ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4589{ 4590 struct ciss_softc *sc; 4591 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4592#ifdef __amd64__ 4593 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4594 IOCTL_Command_struct ioc_swab; 4595#endif 4596 int error; 4597 4598 debug_called(1); 4599 4600 sc = (struct ciss_softc *)dev->si_drv1; 4601 error = 0; 4602 mtx_lock(&sc->ciss_mtx); 4603 4604 switch(cmd) { 4605 case CCISS_GETQSTATS: 4606 { 4607 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4608 4609 switch (cr->cs_item) { 4610 case CISSQ_FREE: 4611 case CISSQ_NOTIFY: 4612 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4613 sizeof(struct ciss_qstat)); 4614 break; 4615 default: 4616 error = ENOIOCTL; 4617 break; 4618 } 4619 4620 break; 4621 } 4622 4623 case CCISS_GETPCIINFO: 4624 { 4625 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4626 4627 pis->bus = pci_get_bus(sc->ciss_dev); 4628 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4629 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4630 pci_get_subdevice(sc->ciss_dev); 4631 4632 break; 4633 } 4634 4635 case CCISS_GETINTINFO: 4636 { 4637 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4638 4639 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4640 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4641 4642 break; 4643 } 4644 4645 case CCISS_SETINTINFO: 4646 { 4647 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4648 4649 if ((cis->delay == 0) && (cis->count == 0)) { 4650 error = EINVAL; 4651 break; 4652 } 4653 4654 /* 4655 * XXX apparently this is only safe if the controller is idle, 4656 * we should suspend it before doing this. 4657 */ 4658 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4659 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4660 4661 if (ciss_update_config(sc)) 4662 error = EIO; 4663 4664 /* XXX resume the controller here */ 4665 break; 4666 } 4667 4668 case CCISS_GETNODENAME: 4669 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4670 sizeof(NodeName_type)); 4671 break; 4672 4673 case CCISS_SETNODENAME: 4674 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4675 sizeof(NodeName_type)); 4676 if (ciss_update_config(sc)) 4677 error = EIO; 4678 break; 4679 4680 case CCISS_GETHEARTBEAT: 4681 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4682 break; 4683 4684 case CCISS_GETBUSTYPES: 4685 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4686 break; 4687 4688 case CCISS_GETFIRMVER: 4689 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4690 sizeof(FirmwareVer_type)); 4691 break; 4692 4693 case CCISS_GETDRIVERVER: 4694 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4695 break; 4696 4697 case CCISS_REVALIDVOLS: 4698 /* 4699 * This is a bit ugly; to do it "right" we really need 4700 * to find any disks that have changed, kick CAM off them, 4701 * then rescan only these disks. It'd be nice if they 4702 * a) told us which disk(s) they were going to play with, 4703 * and b) which ones had arrived. 8( 4704 */ 4705 break; 4706 4707#ifdef __amd64__ 4708 case CCISS_PASSTHRU32: 4709 ioc_swab.LUN_info = ioc32->LUN_info; 4710 ioc_swab.Request = ioc32->Request; 4711 ioc_swab.error_info = ioc32->error_info; 4712 ioc_swab.buf_size = ioc32->buf_size; 4713 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4714 ioc = &ioc_swab; 4715 /* FALLTHROUGH */ 4716#endif 4717 4718 case CCISS_PASSTHRU: 4719 error = ciss_user_command(sc, ioc); 4720 break; 4721 4722 default: 4723 debug(0, "unknown ioctl 0x%lx", cmd); 4724 4725 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4726 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4727 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4728 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4729 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4730 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4731 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4732 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4733 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4734 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4735 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4736 4737 error = ENOIOCTL; 4738 break; 4739 } 4740 4741 mtx_unlock(&sc->ciss_mtx); 4742 return(error); 4743} 4744