mfi.c revision 224039
1/*- 2 * Copyright (c) 2006 IronPort Systems 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26/*- 27 * Copyright (c) 2007 LSI Corp. 28 * Copyright (c) 2007 Rajesh Prabhakaran. 29 * All rights reserved. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 1. Redistributions of source code must retain the above copyright 35 * notice, this list of conditions and the following disclaimer. 36 * 2. Redistributions in binary form must reproduce the above copyright 37 * notice, this list of conditions and the following disclaimer in the 38 * documentation and/or other materials provided with the distribution. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 */ 52 53#include <sys/cdefs.h> 54__FBSDID("$FreeBSD: head/sys/dev/mfi/mfi.c 224039 2011-07-14 20:11:27Z jhb $"); 55 56#include "opt_mfi.h" 57 58#include <sys/param.h> 59#include <sys/systm.h> 60#include <sys/sysctl.h> 61#include <sys/malloc.h> 62#include <sys/kernel.h> 63#include <sys/poll.h> 64#include <sys/selinfo.h> 65#include <sys/bus.h> 66#include <sys/conf.h> 67#include <sys/eventhandler.h> 68#include <sys/rman.h> 69#include <sys/bus_dma.h> 70#include <sys/bio.h> 71#include <sys/ioccom.h> 72#include <sys/uio.h> 73#include <sys/proc.h> 74#include <sys/signalvar.h> 75 76#include <machine/bus.h> 77#include <machine/resource.h> 78 79#include <dev/mfi/mfireg.h> 80#include <dev/mfi/mfi_ioctl.h> 81#include <dev/mfi/mfivar.h> 82 83static int mfi_alloc_commands(struct mfi_softc *); 84static int mfi_comms_init(struct mfi_softc *); 85static int mfi_wait_command(struct mfi_softc *, struct mfi_command *); 86static int mfi_get_controller_info(struct mfi_softc *); 87static int mfi_get_log_state(struct mfi_softc *, 88 struct mfi_evt_log_state **); 89static int mfi_parse_entries(struct mfi_softc *, int, int); 90static int mfi_dcmd_command(struct mfi_softc *, struct mfi_command **, 91 uint32_t, void **, size_t); 92static void mfi_data_cb(void *, bus_dma_segment_t *, int, int); 93static void mfi_startup(void *arg); 94static void mfi_intr(void *arg); 95static void mfi_ldprobe(struct mfi_softc *sc); 96static int mfi_aen_register(struct mfi_softc *sc, int seq, int locale); 97static void mfi_aen_complete(struct mfi_command *); 98static int mfi_aen_setup(struct mfi_softc *, uint32_t); 99static int mfi_add_ld(struct mfi_softc *sc, int); 100static void mfi_add_ld_complete(struct mfi_command *); 101static struct mfi_command * mfi_bio_command(struct mfi_softc *); 102static void mfi_bio_complete(struct mfi_command *); 103static int mfi_mapcmd(struct mfi_softc *, struct mfi_command *); 104static int mfi_send_frame(struct mfi_softc *, struct mfi_command *); 105static void mfi_complete(struct mfi_softc *, struct mfi_command *); 106static int mfi_abort(struct mfi_softc *, struct mfi_command *); 107static int mfi_linux_ioctl_int(struct cdev *, u_long, caddr_t, int, struct thread *); 108static void mfi_timeout(void *); 109static int mfi_user_command(struct mfi_softc *, 110 struct mfi_ioc_passthru *); 111static void mfi_enable_intr_xscale(struct mfi_softc *sc); 112static void mfi_enable_intr_ppc(struct mfi_softc *sc); 113static int32_t mfi_read_fw_status_xscale(struct mfi_softc *sc); 114static int32_t mfi_read_fw_status_ppc(struct mfi_softc *sc); 115static int mfi_check_clear_intr_xscale(struct mfi_softc *sc); 116static int mfi_check_clear_intr_ppc(struct mfi_softc *sc); 117static void mfi_issue_cmd_xscale(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt); 118static void mfi_issue_cmd_ppc(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt); 119 120SYSCTL_NODE(_hw, OID_AUTO, mfi, CTLFLAG_RD, 0, "MFI driver parameters"); 121static int mfi_event_locale = MFI_EVT_LOCALE_ALL; 122TUNABLE_INT("hw.mfi.event_locale", &mfi_event_locale); 123SYSCTL_INT(_hw_mfi, OID_AUTO, event_locale, CTLFLAG_RW, &mfi_event_locale, 124 0, "event message locale"); 125 126static int mfi_event_class = MFI_EVT_CLASS_INFO; 127TUNABLE_INT("hw.mfi.event_class", &mfi_event_class); 128SYSCTL_INT(_hw_mfi, OID_AUTO, event_class, CTLFLAG_RW, &mfi_event_class, 129 0, "event message class"); 130 131static int mfi_max_cmds = 128; 132TUNABLE_INT("hw.mfi.max_cmds", &mfi_max_cmds); 133SYSCTL_INT(_hw_mfi, OID_AUTO, max_cmds, CTLFLAG_RD, &mfi_max_cmds, 134 0, "Max commands"); 135 136/* Management interface */ 137static d_open_t mfi_open; 138static d_close_t mfi_close; 139static d_ioctl_t mfi_ioctl; 140static d_poll_t mfi_poll; 141 142static struct cdevsw mfi_cdevsw = { 143 .d_version = D_VERSION, 144 .d_flags = 0, 145 .d_open = mfi_open, 146 .d_close = mfi_close, 147 .d_ioctl = mfi_ioctl, 148 .d_poll = mfi_poll, 149 .d_name = "mfi", 150}; 151 152MALLOC_DEFINE(M_MFIBUF, "mfibuf", "Buffers for the MFI driver"); 153 154#define MFI_INQ_LENGTH SHORT_INQUIRY_LENGTH 155 156static void 157mfi_enable_intr_xscale(struct mfi_softc *sc) 158{ 159 MFI_WRITE4(sc, MFI_OMSK, 0x01); 160} 161 162static void 163mfi_enable_intr_ppc(struct mfi_softc *sc) 164{ 165 MFI_WRITE4(sc, MFI_ODCR0, 0xFFFFFFFF); 166 if (sc->mfi_flags & MFI_FLAGS_1078) { 167 MFI_WRITE4(sc, MFI_OMSK, ~MFI_1078_EIM); 168 } else if (sc->mfi_flags & MFI_FLAGS_GEN2) { 169 MFI_WRITE4(sc, MFI_OMSK, ~MFI_GEN2_EIM); 170 } 171} 172 173static int32_t 174mfi_read_fw_status_xscale(struct mfi_softc *sc) 175{ 176 return MFI_READ4(sc, MFI_OMSG0); 177} 178 179static int32_t 180mfi_read_fw_status_ppc(struct mfi_softc *sc) 181{ 182 return MFI_READ4(sc, MFI_OSP0); 183} 184 185static int 186mfi_check_clear_intr_xscale(struct mfi_softc *sc) 187{ 188 int32_t status; 189 190 status = MFI_READ4(sc, MFI_OSTS); 191 if ((status & MFI_OSTS_INTR_VALID) == 0) 192 return 1; 193 194 MFI_WRITE4(sc, MFI_OSTS, status); 195 return 0; 196} 197 198static int 199mfi_check_clear_intr_ppc(struct mfi_softc *sc) 200{ 201 int32_t status; 202 203 status = MFI_READ4(sc, MFI_OSTS); 204 if (sc->mfi_flags & MFI_FLAGS_1078) { 205 if (!(status & MFI_1078_RM)) { 206 return 1; 207 } 208 } else if (sc->mfi_flags & MFI_FLAGS_GEN2) { 209 if (!(status & MFI_GEN2_RM)) { 210 return 1; 211 } 212 } 213 214 MFI_WRITE4(sc, MFI_ODCR0, status); 215 return 0; 216} 217 218static void 219mfi_issue_cmd_xscale(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt) 220{ 221 MFI_WRITE4(sc, MFI_IQP,(bus_add >>3)|frame_cnt); 222} 223 224static void 225mfi_issue_cmd_ppc(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt) 226{ 227 MFI_WRITE4(sc, MFI_IQP, (bus_add |frame_cnt <<1)|1 ); 228} 229 230static int 231mfi_transition_firmware(struct mfi_softc *sc) 232{ 233 uint32_t fw_state, cur_state; 234 int max_wait, i; 235 236 fw_state = sc->mfi_read_fw_status(sc)& MFI_FWSTATE_MASK; 237 while (fw_state != MFI_FWSTATE_READY) { 238 if (bootverbose) 239 device_printf(sc->mfi_dev, "Waiting for firmware to " 240 "become ready\n"); 241 cur_state = fw_state; 242 switch (fw_state) { 243 case MFI_FWSTATE_FAULT: 244 device_printf(sc->mfi_dev, "Firmware fault\n"); 245 return (ENXIO); 246 case MFI_FWSTATE_WAIT_HANDSHAKE: 247 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_CLEAR_HANDSHAKE); 248 max_wait = 2; 249 break; 250 case MFI_FWSTATE_OPERATIONAL: 251 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_READY); 252 max_wait = 10; 253 break; 254 case MFI_FWSTATE_UNDEFINED: 255 case MFI_FWSTATE_BB_INIT: 256 max_wait = 2; 257 break; 258 case MFI_FWSTATE_FW_INIT: 259 case MFI_FWSTATE_DEVICE_SCAN: 260 case MFI_FWSTATE_FLUSH_CACHE: 261 max_wait = 20; 262 break; 263 default: 264 device_printf(sc->mfi_dev,"Unknown firmware state %d\n", 265 fw_state); 266 return (ENXIO); 267 } 268 for (i = 0; i < (max_wait * 10); i++) { 269 fw_state = sc->mfi_read_fw_status(sc) & MFI_FWSTATE_MASK; 270 if (fw_state == cur_state) 271 DELAY(100000); 272 else 273 break; 274 } 275 if (fw_state == cur_state) { 276 device_printf(sc->mfi_dev, "firmware stuck in state " 277 "%#x\n", fw_state); 278 return (ENXIO); 279 } 280 } 281 return (0); 282} 283 284static void 285mfi_addr32_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 286{ 287 uint32_t *addr; 288 289 addr = arg; 290 *addr = segs[0].ds_addr; 291} 292 293int 294mfi_attach(struct mfi_softc *sc) 295{ 296 uint32_t status; 297 int error, commsz, framessz, sensesz; 298 int frames, unit, max_fw_sge; 299 300 device_printf(sc->mfi_dev, "Megaraid SAS driver Ver 3.00 \n"); 301 302 mtx_init(&sc->mfi_io_lock, "MFI I/O lock", NULL, MTX_DEF); 303 sx_init(&sc->mfi_config_lock, "MFI config"); 304 TAILQ_INIT(&sc->mfi_ld_tqh); 305 TAILQ_INIT(&sc->mfi_aen_pids); 306 TAILQ_INIT(&sc->mfi_cam_ccbq); 307 308 mfi_initq_free(sc); 309 mfi_initq_ready(sc); 310 mfi_initq_busy(sc); 311 mfi_initq_bio(sc); 312 313 if (sc->mfi_flags & MFI_FLAGS_1064R) { 314 sc->mfi_enable_intr = mfi_enable_intr_xscale; 315 sc->mfi_read_fw_status = mfi_read_fw_status_xscale; 316 sc->mfi_check_clear_intr = mfi_check_clear_intr_xscale; 317 sc->mfi_issue_cmd = mfi_issue_cmd_xscale; 318 } 319 else { 320 sc->mfi_enable_intr = mfi_enable_intr_ppc; 321 sc->mfi_read_fw_status = mfi_read_fw_status_ppc; 322 sc->mfi_check_clear_intr = mfi_check_clear_intr_ppc; 323 sc->mfi_issue_cmd = mfi_issue_cmd_ppc; 324 } 325 326 327 /* Before we get too far, see if the firmware is working */ 328 if ((error = mfi_transition_firmware(sc)) != 0) { 329 device_printf(sc->mfi_dev, "Firmware not in READY state, " 330 "error %d\n", error); 331 return (ENXIO); 332 } 333 334 /* 335 * Get information needed for sizing the contiguous memory for the 336 * frame pool. Size down the sgl parameter since we know that 337 * we will never need more than what's required for MAXPHYS. 338 * It would be nice if these constants were available at runtime 339 * instead of compile time. 340 */ 341 status = sc->mfi_read_fw_status(sc); 342 sc->mfi_max_fw_cmds = status & MFI_FWSTATE_MAXCMD_MASK; 343 max_fw_sge = (status & MFI_FWSTATE_MAXSGL_MASK) >> 16; 344 sc->mfi_max_sge = min(max_fw_sge, ((MFI_MAXPHYS / PAGE_SIZE) + 1)); 345 346 /* 347 * Create the dma tag for data buffers. Used both for block I/O 348 * and for various internal data queries. 349 */ 350 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 351 1, 0, /* algnmnt, boundary */ 352 BUS_SPACE_MAXADDR, /* lowaddr */ 353 BUS_SPACE_MAXADDR, /* highaddr */ 354 NULL, NULL, /* filter, filterarg */ 355 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 356 sc->mfi_max_sge, /* nsegments */ 357 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 358 BUS_DMA_ALLOCNOW, /* flags */ 359 busdma_lock_mutex, /* lockfunc */ 360 &sc->mfi_io_lock, /* lockfuncarg */ 361 &sc->mfi_buffer_dmat)) { 362 device_printf(sc->mfi_dev, "Cannot allocate buffer DMA tag\n"); 363 return (ENOMEM); 364 } 365 366 /* 367 * Allocate DMA memory for the comms queues. Keep it under 4GB for 368 * efficiency. The mfi_hwcomms struct includes space for 1 reply queue 369 * entry, so the calculated size here will be will be 1 more than 370 * mfi_max_fw_cmds. This is apparently a requirement of the hardware. 371 */ 372 commsz = (sizeof(uint32_t) * sc->mfi_max_fw_cmds) + 373 sizeof(struct mfi_hwcomms); 374 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 375 1, 0, /* algnmnt, boundary */ 376 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 377 BUS_SPACE_MAXADDR, /* highaddr */ 378 NULL, NULL, /* filter, filterarg */ 379 commsz, /* maxsize */ 380 1, /* msegments */ 381 commsz, /* maxsegsize */ 382 0, /* flags */ 383 NULL, NULL, /* lockfunc, lockarg */ 384 &sc->mfi_comms_dmat)) { 385 device_printf(sc->mfi_dev, "Cannot allocate comms DMA tag\n"); 386 return (ENOMEM); 387 } 388 if (bus_dmamem_alloc(sc->mfi_comms_dmat, (void **)&sc->mfi_comms, 389 BUS_DMA_NOWAIT, &sc->mfi_comms_dmamap)) { 390 device_printf(sc->mfi_dev, "Cannot allocate comms memory\n"); 391 return (ENOMEM); 392 } 393 bzero(sc->mfi_comms, commsz); 394 bus_dmamap_load(sc->mfi_comms_dmat, sc->mfi_comms_dmamap, 395 sc->mfi_comms, commsz, mfi_addr32_cb, &sc->mfi_comms_busaddr, 0); 396 397 /* 398 * Allocate DMA memory for the command frames. Keep them in the 399 * lower 4GB for efficiency. Calculate the size of the commands at 400 * the same time; each command is one 64 byte frame plus a set of 401 * additional frames for holding sg lists or other data. 402 * The assumption here is that the SG list will start at the second 403 * frame and not use the unused bytes in the first frame. While this 404 * isn't technically correct, it simplifies the calculation and allows 405 * for command frames that might be larger than an mfi_io_frame. 406 */ 407 if (sizeof(bus_addr_t) == 8) { 408 sc->mfi_sge_size = sizeof(struct mfi_sg64); 409 sc->mfi_flags |= MFI_FLAGS_SG64; 410 } else { 411 sc->mfi_sge_size = sizeof(struct mfi_sg32); 412 } 413 frames = (sc->mfi_sge_size * sc->mfi_max_sge - 1) / MFI_FRAME_SIZE + 2; 414 sc->mfi_cmd_size = frames * MFI_FRAME_SIZE; 415 framessz = sc->mfi_cmd_size * sc->mfi_max_fw_cmds; 416 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 417 64, 0, /* algnmnt, boundary */ 418 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 419 BUS_SPACE_MAXADDR, /* highaddr */ 420 NULL, NULL, /* filter, filterarg */ 421 framessz, /* maxsize */ 422 1, /* nsegments */ 423 framessz, /* maxsegsize */ 424 0, /* flags */ 425 NULL, NULL, /* lockfunc, lockarg */ 426 &sc->mfi_frames_dmat)) { 427 device_printf(sc->mfi_dev, "Cannot allocate frame DMA tag\n"); 428 return (ENOMEM); 429 } 430 if (bus_dmamem_alloc(sc->mfi_frames_dmat, (void **)&sc->mfi_frames, 431 BUS_DMA_NOWAIT, &sc->mfi_frames_dmamap)) { 432 device_printf(sc->mfi_dev, "Cannot allocate frames memory\n"); 433 return (ENOMEM); 434 } 435 bzero(sc->mfi_frames, framessz); 436 bus_dmamap_load(sc->mfi_frames_dmat, sc->mfi_frames_dmamap, 437 sc->mfi_frames, framessz, mfi_addr32_cb, &sc->mfi_frames_busaddr,0); 438 439 /* 440 * Allocate DMA memory for the frame sense data. Keep them in the 441 * lower 4GB for efficiency 442 */ 443 sensesz = sc->mfi_max_fw_cmds * MFI_SENSE_LEN; 444 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 445 4, 0, /* algnmnt, boundary */ 446 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 447 BUS_SPACE_MAXADDR, /* highaddr */ 448 NULL, NULL, /* filter, filterarg */ 449 sensesz, /* maxsize */ 450 1, /* nsegments */ 451 sensesz, /* maxsegsize */ 452 0, /* flags */ 453 NULL, NULL, /* lockfunc, lockarg */ 454 &sc->mfi_sense_dmat)) { 455 device_printf(sc->mfi_dev, "Cannot allocate sense DMA tag\n"); 456 return (ENOMEM); 457 } 458 if (bus_dmamem_alloc(sc->mfi_sense_dmat, (void **)&sc->mfi_sense, 459 BUS_DMA_NOWAIT, &sc->mfi_sense_dmamap)) { 460 device_printf(sc->mfi_dev, "Cannot allocate sense memory\n"); 461 return (ENOMEM); 462 } 463 bus_dmamap_load(sc->mfi_sense_dmat, sc->mfi_sense_dmamap, 464 sc->mfi_sense, sensesz, mfi_addr32_cb, &sc->mfi_sense_busaddr, 0); 465 466 if ((error = mfi_alloc_commands(sc)) != 0) 467 return (error); 468 469 if ((error = mfi_comms_init(sc)) != 0) 470 return (error); 471 472 if ((error = mfi_get_controller_info(sc)) != 0) 473 return (error); 474 475 mtx_lock(&sc->mfi_io_lock); 476 if ((error = mfi_aen_setup(sc, 0), 0) != 0) { 477 mtx_unlock(&sc->mfi_io_lock); 478 return (error); 479 } 480 mtx_unlock(&sc->mfi_io_lock); 481 482 /* 483 * Set up the interrupt handler. XXX This should happen in 484 * mfi_pci.c 485 */ 486 sc->mfi_irq_rid = 0; 487 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 488 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 489 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 490 return (EINVAL); 491 } 492 if (bus_setup_intr(sc->mfi_dev, sc->mfi_irq, INTR_MPSAFE|INTR_TYPE_BIO, 493 NULL, mfi_intr, sc, &sc->mfi_intr)) { 494 device_printf(sc->mfi_dev, "Cannot set up interrupt\n"); 495 return (EINVAL); 496 } 497 498 /* Register a config hook to probe the bus for arrays */ 499 sc->mfi_ich.ich_func = mfi_startup; 500 sc->mfi_ich.ich_arg = sc; 501 if (config_intrhook_establish(&sc->mfi_ich) != 0) { 502 device_printf(sc->mfi_dev, "Cannot establish configuration " 503 "hook\n"); 504 return (EINVAL); 505 } 506 507 /* 508 * Register a shutdown handler. 509 */ 510 if ((sc->mfi_eh = EVENTHANDLER_REGISTER(shutdown_final, mfi_shutdown, 511 sc, SHUTDOWN_PRI_DEFAULT)) == NULL) { 512 device_printf(sc->mfi_dev, "Warning: shutdown event " 513 "registration failed\n"); 514 } 515 516 /* 517 * Create the control device for doing management 518 */ 519 unit = device_get_unit(sc->mfi_dev); 520 sc->mfi_cdev = make_dev(&mfi_cdevsw, unit, UID_ROOT, GID_OPERATOR, 521 0640, "mfi%d", unit); 522 if (unit == 0) 523 make_dev_alias(sc->mfi_cdev, "megaraid_sas_ioctl_node"); 524 if (sc->mfi_cdev != NULL) 525 sc->mfi_cdev->si_drv1 = sc; 526 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 527 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 528 OID_AUTO, "delete_busy_volumes", CTLFLAG_RW, 529 &sc->mfi_delete_busy_volumes, 0, "Allow removal of busy volumes"); 530 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 531 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 532 OID_AUTO, "keep_deleted_volumes", CTLFLAG_RW, 533 &sc->mfi_keep_deleted_volumes, 0, 534 "Don't detach the mfid device for a busy volume that is deleted"); 535 536 device_add_child(sc->mfi_dev, "mfip", -1); 537 bus_generic_attach(sc->mfi_dev); 538 539 /* Start the timeout watchdog */ 540 callout_init(&sc->mfi_watchdog_callout, CALLOUT_MPSAFE); 541 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 542 mfi_timeout, sc); 543 544 return (0); 545} 546 547static int 548mfi_alloc_commands(struct mfi_softc *sc) 549{ 550 struct mfi_command *cm; 551 int i, ncmds; 552 553 /* 554 * XXX Should we allocate all the commands up front, or allocate on 555 * demand later like 'aac' does? 556 */ 557 ncmds = MIN(mfi_max_cmds, sc->mfi_max_fw_cmds); 558 if (bootverbose) 559 device_printf(sc->mfi_dev, "Max fw cmds= %d, sizing driver " 560 "pool to %d\n", sc->mfi_max_fw_cmds, ncmds); 561 562 sc->mfi_commands = malloc(sizeof(struct mfi_command) * ncmds, M_MFIBUF, 563 M_WAITOK | M_ZERO); 564 565 for (i = 0; i < ncmds; i++) { 566 cm = &sc->mfi_commands[i]; 567 cm->cm_frame = (union mfi_frame *)((uintptr_t)sc->mfi_frames + 568 sc->mfi_cmd_size * i); 569 cm->cm_frame_busaddr = sc->mfi_frames_busaddr + 570 sc->mfi_cmd_size * i; 571 cm->cm_frame->header.context = i; 572 cm->cm_sense = &sc->mfi_sense[i]; 573 cm->cm_sense_busaddr= sc->mfi_sense_busaddr + MFI_SENSE_LEN * i; 574 cm->cm_sc = sc; 575 cm->cm_index = i; 576 if (bus_dmamap_create(sc->mfi_buffer_dmat, 0, 577 &cm->cm_dmamap) == 0) 578 mfi_release_command(cm); 579 else 580 break; 581 sc->mfi_total_cmds++; 582 } 583 584 return (0); 585} 586 587void 588mfi_release_command(struct mfi_command *cm) 589{ 590 struct mfi_frame_header *hdr; 591 uint32_t *hdr_data; 592 593 /* 594 * Zero out the important fields of the frame, but make sure the 595 * context field is preserved. For efficiency, handle the fields 596 * as 32 bit words. Clear out the first S/G entry too for safety. 597 */ 598 hdr = &cm->cm_frame->header; 599 if (cm->cm_data != NULL && hdr->sg_count) { 600 cm->cm_sg->sg32[0].len = 0; 601 cm->cm_sg->sg32[0].addr = 0; 602 } 603 604 hdr_data = (uint32_t *)cm->cm_frame; 605 hdr_data[0] = 0; /* cmd, sense_len, cmd_status, scsi_status */ 606 hdr_data[1] = 0; /* target_id, lun_id, cdb_len, sg_count */ 607 hdr_data[4] = 0; /* flags, timeout */ 608 hdr_data[5] = 0; /* data_len */ 609 610 cm->cm_extra_frames = 0; 611 cm->cm_flags = 0; 612 cm->cm_complete = NULL; 613 cm->cm_private = NULL; 614 cm->cm_data = NULL; 615 cm->cm_sg = 0; 616 cm->cm_total_frame_size = 0; 617 618 mfi_enqueue_free(cm); 619} 620 621static int 622mfi_dcmd_command(struct mfi_softc *sc, struct mfi_command **cmp, uint32_t opcode, 623 void **bufp, size_t bufsize) 624{ 625 struct mfi_command *cm; 626 struct mfi_dcmd_frame *dcmd; 627 void *buf = NULL; 628 629 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 630 631 cm = mfi_dequeue_free(sc); 632 if (cm == NULL) 633 return (EBUSY); 634 635 if ((bufsize > 0) && (bufp != NULL)) { 636 if (*bufp == NULL) { 637 buf = malloc(bufsize, M_MFIBUF, M_NOWAIT|M_ZERO); 638 if (buf == NULL) { 639 mfi_release_command(cm); 640 return (ENOMEM); 641 } 642 *bufp = buf; 643 } else { 644 buf = *bufp; 645 } 646 } 647 648 dcmd = &cm->cm_frame->dcmd; 649 bzero(dcmd->mbox, MFI_MBOX_SIZE); 650 dcmd->header.cmd = MFI_CMD_DCMD; 651 dcmd->header.timeout = 0; 652 dcmd->header.flags = 0; 653 dcmd->header.data_len = bufsize; 654 dcmd->opcode = opcode; 655 cm->cm_sg = &dcmd->sgl; 656 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 657 cm->cm_flags = 0; 658 cm->cm_data = buf; 659 cm->cm_private = buf; 660 cm->cm_len = bufsize; 661 662 *cmp = cm; 663 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 664 *bufp = buf; 665 return (0); 666} 667 668static int 669mfi_comms_init(struct mfi_softc *sc) 670{ 671 struct mfi_command *cm; 672 struct mfi_init_frame *init; 673 struct mfi_init_qinfo *qinfo; 674 int error; 675 676 mtx_lock(&sc->mfi_io_lock); 677 if ((cm = mfi_dequeue_free(sc)) == NULL) 678 return (EBUSY); 679 680 /* 681 * Abuse the SG list area of the frame to hold the init_qinfo 682 * object; 683 */ 684 init = &cm->cm_frame->init; 685 qinfo = (struct mfi_init_qinfo *)((uintptr_t)init + MFI_FRAME_SIZE); 686 687 bzero(qinfo, sizeof(struct mfi_init_qinfo)); 688 qinfo->rq_entries = sc->mfi_max_fw_cmds + 1; 689 qinfo->rq_addr_lo = sc->mfi_comms_busaddr + 690 offsetof(struct mfi_hwcomms, hw_reply_q); 691 qinfo->pi_addr_lo = sc->mfi_comms_busaddr + 692 offsetof(struct mfi_hwcomms, hw_pi); 693 qinfo->ci_addr_lo = sc->mfi_comms_busaddr + 694 offsetof(struct mfi_hwcomms, hw_ci); 695 696 init->header.cmd = MFI_CMD_INIT; 697 init->header.data_len = sizeof(struct mfi_init_qinfo); 698 init->qinfo_new_addr_lo = cm->cm_frame_busaddr + MFI_FRAME_SIZE; 699 cm->cm_data = NULL; 700 cm->cm_flags = MFI_CMD_POLLED; 701 702 if ((error = mfi_mapcmd(sc, cm)) != 0) { 703 device_printf(sc->mfi_dev, "failed to send init command\n"); 704 mtx_unlock(&sc->mfi_io_lock); 705 return (error); 706 } 707 mfi_release_command(cm); 708 mtx_unlock(&sc->mfi_io_lock); 709 710 return (0); 711} 712 713static int 714mfi_get_controller_info(struct mfi_softc *sc) 715{ 716 struct mfi_command *cm = NULL; 717 struct mfi_ctrl_info *ci = NULL; 718 uint32_t max_sectors_1, max_sectors_2; 719 int error; 720 721 mtx_lock(&sc->mfi_io_lock); 722 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_GETINFO, 723 (void **)&ci, sizeof(*ci)); 724 if (error) 725 goto out; 726 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 727 728 if ((error = mfi_mapcmd(sc, cm)) != 0) { 729 device_printf(sc->mfi_dev, "Failed to get controller info\n"); 730 sc->mfi_max_io = (sc->mfi_max_sge - 1) * PAGE_SIZE / 731 MFI_SECTOR_LEN; 732 error = 0; 733 goto out; 734 } 735 736 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 737 BUS_DMASYNC_POSTREAD); 738 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 739 740 max_sectors_1 = (1 << ci->stripe_sz_ops.min) * ci->max_strips_per_io; 741 max_sectors_2 = ci->max_request_size; 742 sc->mfi_max_io = min(max_sectors_1, max_sectors_2); 743 744out: 745 if (ci) 746 free(ci, M_MFIBUF); 747 if (cm) 748 mfi_release_command(cm); 749 mtx_unlock(&sc->mfi_io_lock); 750 return (error); 751} 752 753static int 754mfi_get_log_state(struct mfi_softc *sc, struct mfi_evt_log_state **log_state) 755{ 756 struct mfi_command *cm = NULL; 757 int error; 758 759 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_GETINFO, 760 (void **)log_state, sizeof(**log_state)); 761 if (error) 762 goto out; 763 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 764 765 if ((error = mfi_mapcmd(sc, cm)) != 0) { 766 device_printf(sc->mfi_dev, "Failed to get log state\n"); 767 goto out; 768 } 769 770 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 771 BUS_DMASYNC_POSTREAD); 772 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 773 774out: 775 if (cm) 776 mfi_release_command(cm); 777 778 return (error); 779} 780 781static int 782mfi_aen_setup(struct mfi_softc *sc, uint32_t seq_start) 783{ 784 struct mfi_evt_log_state *log_state = NULL; 785 union mfi_evt class_locale; 786 int error = 0; 787 uint32_t seq; 788 789 class_locale.members.reserved = 0; 790 class_locale.members.locale = mfi_event_locale; 791 class_locale.members.evt_class = mfi_event_class; 792 793 if (seq_start == 0) { 794 error = mfi_get_log_state(sc, &log_state); 795 if (error) { 796 if (log_state) 797 free(log_state, M_MFIBUF); 798 return (error); 799 } 800 801 /* 802 * Walk through any events that fired since the last 803 * shutdown. 804 */ 805 mfi_parse_entries(sc, log_state->shutdown_seq_num, 806 log_state->newest_seq_num); 807 seq = log_state->newest_seq_num; 808 } else 809 seq = seq_start; 810 mfi_aen_register(sc, seq, class_locale.word); 811 free(log_state, M_MFIBUF); 812 813 return 0; 814} 815 816static int 817mfi_wait_command(struct mfi_softc *sc, struct mfi_command *cm) 818{ 819 820 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 821 cm->cm_complete = NULL; 822 823 824 /* 825 * MegaCli can issue a DCMD of 0. In this case do nothing 826 * and return 0 to it as status 827 */ 828 if (cm->cm_frame->dcmd.opcode == 0) { 829 cm->cm_frame->header.cmd_status = MFI_STAT_OK; 830 cm->cm_error = 0; 831 return (cm->cm_error); 832 } 833 mfi_enqueue_ready(cm); 834 mfi_startio(sc); 835 if ((cm->cm_flags & MFI_CMD_COMPLETED) == 0) 836 msleep(cm, &sc->mfi_io_lock, PRIBIO, "mfiwait", 0); 837 return (cm->cm_error); 838} 839 840void 841mfi_free(struct mfi_softc *sc) 842{ 843 struct mfi_command *cm; 844 int i; 845 846 callout_drain(&sc->mfi_watchdog_callout); 847 848 if (sc->mfi_cdev != NULL) 849 destroy_dev(sc->mfi_cdev); 850 851 if (sc->mfi_total_cmds != 0) { 852 for (i = 0; i < sc->mfi_total_cmds; i++) { 853 cm = &sc->mfi_commands[i]; 854 bus_dmamap_destroy(sc->mfi_buffer_dmat, cm->cm_dmamap); 855 } 856 free(sc->mfi_commands, M_MFIBUF); 857 } 858 859 if (sc->mfi_intr) 860 bus_teardown_intr(sc->mfi_dev, sc->mfi_irq, sc->mfi_intr); 861 if (sc->mfi_irq != NULL) 862 bus_release_resource(sc->mfi_dev, SYS_RES_IRQ, sc->mfi_irq_rid, 863 sc->mfi_irq); 864 865 if (sc->mfi_sense_busaddr != 0) 866 bus_dmamap_unload(sc->mfi_sense_dmat, sc->mfi_sense_dmamap); 867 if (sc->mfi_sense != NULL) 868 bus_dmamem_free(sc->mfi_sense_dmat, sc->mfi_sense, 869 sc->mfi_sense_dmamap); 870 if (sc->mfi_sense_dmat != NULL) 871 bus_dma_tag_destroy(sc->mfi_sense_dmat); 872 873 if (sc->mfi_frames_busaddr != 0) 874 bus_dmamap_unload(sc->mfi_frames_dmat, sc->mfi_frames_dmamap); 875 if (sc->mfi_frames != NULL) 876 bus_dmamem_free(sc->mfi_frames_dmat, sc->mfi_frames, 877 sc->mfi_frames_dmamap); 878 if (sc->mfi_frames_dmat != NULL) 879 bus_dma_tag_destroy(sc->mfi_frames_dmat); 880 881 if (sc->mfi_comms_busaddr != 0) 882 bus_dmamap_unload(sc->mfi_comms_dmat, sc->mfi_comms_dmamap); 883 if (sc->mfi_comms != NULL) 884 bus_dmamem_free(sc->mfi_comms_dmat, sc->mfi_comms, 885 sc->mfi_comms_dmamap); 886 if (sc->mfi_comms_dmat != NULL) 887 bus_dma_tag_destroy(sc->mfi_comms_dmat); 888 889 if (sc->mfi_buffer_dmat != NULL) 890 bus_dma_tag_destroy(sc->mfi_buffer_dmat); 891 if (sc->mfi_parent_dmat != NULL) 892 bus_dma_tag_destroy(sc->mfi_parent_dmat); 893 894 if (mtx_initialized(&sc->mfi_io_lock)) { 895 mtx_destroy(&sc->mfi_io_lock); 896 sx_destroy(&sc->mfi_config_lock); 897 } 898 899 return; 900} 901 902static void 903mfi_startup(void *arg) 904{ 905 struct mfi_softc *sc; 906 907 sc = (struct mfi_softc *)arg; 908 909 config_intrhook_disestablish(&sc->mfi_ich); 910 911 sc->mfi_enable_intr(sc); 912 sx_xlock(&sc->mfi_config_lock); 913 mtx_lock(&sc->mfi_io_lock); 914 mfi_ldprobe(sc); 915 mtx_unlock(&sc->mfi_io_lock); 916 sx_xunlock(&sc->mfi_config_lock); 917} 918 919static void 920mfi_intr(void *arg) 921{ 922 struct mfi_softc *sc; 923 struct mfi_command *cm; 924 uint32_t pi, ci, context; 925 926 sc = (struct mfi_softc *)arg; 927 928 if (sc->mfi_check_clear_intr(sc)) 929 return; 930 931 pi = sc->mfi_comms->hw_pi; 932 ci = sc->mfi_comms->hw_ci; 933 mtx_lock(&sc->mfi_io_lock); 934 while (ci != pi) { 935 context = sc->mfi_comms->hw_reply_q[ci]; 936 if (context < sc->mfi_max_fw_cmds) { 937 cm = &sc->mfi_commands[context]; 938 mfi_remove_busy(cm); 939 cm->cm_error = 0; 940 mfi_complete(sc, cm); 941 } 942 if (++ci == (sc->mfi_max_fw_cmds + 1)) { 943 ci = 0; 944 } 945 } 946 947 sc->mfi_comms->hw_ci = ci; 948 949 /* Give defered I/O a chance to run */ 950 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 951 sc->mfi_flags &= ~MFI_FLAGS_QFRZN; 952 mfi_startio(sc); 953 mtx_unlock(&sc->mfi_io_lock); 954 955 return; 956} 957 958int 959mfi_shutdown(struct mfi_softc *sc) 960{ 961 struct mfi_dcmd_frame *dcmd; 962 struct mfi_command *cm; 963 int error; 964 965 mtx_lock(&sc->mfi_io_lock); 966 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_SHUTDOWN, NULL, 0); 967 if (error) { 968 mtx_unlock(&sc->mfi_io_lock); 969 return (error); 970 } 971 972 if (sc->mfi_aen_cm != NULL) 973 mfi_abort(sc, sc->mfi_aen_cm); 974 975 dcmd = &cm->cm_frame->dcmd; 976 dcmd->header.flags = MFI_FRAME_DIR_NONE; 977 cm->cm_flags = MFI_CMD_POLLED; 978 cm->cm_data = NULL; 979 980 if ((error = mfi_mapcmd(sc, cm)) != 0) { 981 device_printf(sc->mfi_dev, "Failed to shutdown controller\n"); 982 } 983 984 mfi_release_command(cm); 985 mtx_unlock(&sc->mfi_io_lock); 986 return (error); 987} 988 989static void 990mfi_ldprobe(struct mfi_softc *sc) 991{ 992 struct mfi_frame_header *hdr; 993 struct mfi_command *cm = NULL; 994 struct mfi_ld_list *list = NULL; 995 struct mfi_disk *ld; 996 int error, i; 997 998 sx_assert(&sc->mfi_config_lock, SA_XLOCKED); 999 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1000 1001 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_LIST, 1002 (void **)&list, sizeof(*list)); 1003 if (error) 1004 goto out; 1005 1006 cm->cm_flags = MFI_CMD_DATAIN; 1007 if (mfi_wait_command(sc, cm) != 0) { 1008 device_printf(sc->mfi_dev, "Failed to get device listing\n"); 1009 goto out; 1010 } 1011 1012 hdr = &cm->cm_frame->header; 1013 if (hdr->cmd_status != MFI_STAT_OK) { 1014 device_printf(sc->mfi_dev, "MFI_DCMD_LD_GET_LIST failed %x\n", 1015 hdr->cmd_status); 1016 goto out; 1017 } 1018 1019 for (i = 0; i < list->ld_count; i++) { 1020 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1021 if (ld->ld_id == list->ld_list[i].ld.v.target_id) 1022 goto skip_add; 1023 } 1024 mfi_add_ld(sc, list->ld_list[i].ld.v.target_id); 1025 skip_add:; 1026 } 1027out: 1028 if (list) 1029 free(list, M_MFIBUF); 1030 if (cm) 1031 mfi_release_command(cm); 1032 1033 return; 1034} 1035 1036/* 1037 * The timestamp is the number of seconds since 00:00 Jan 1, 2000. If 1038 * the bits in 24-31 are all set, then it is the number of seconds since 1039 * boot. 1040 */ 1041static const char * 1042format_timestamp(uint32_t timestamp) 1043{ 1044 static char buffer[32]; 1045 1046 if ((timestamp & 0xff000000) == 0xff000000) 1047 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 1048 0x00ffffff); 1049 else 1050 snprintf(buffer, sizeof(buffer), "%us", timestamp); 1051 return (buffer); 1052} 1053 1054static const char * 1055format_class(int8_t class) 1056{ 1057 static char buffer[6]; 1058 1059 switch (class) { 1060 case MFI_EVT_CLASS_DEBUG: 1061 return ("debug"); 1062 case MFI_EVT_CLASS_PROGRESS: 1063 return ("progress"); 1064 case MFI_EVT_CLASS_INFO: 1065 return ("info"); 1066 case MFI_EVT_CLASS_WARNING: 1067 return ("WARN"); 1068 case MFI_EVT_CLASS_CRITICAL: 1069 return ("CRIT"); 1070 case MFI_EVT_CLASS_FATAL: 1071 return ("FATAL"); 1072 case MFI_EVT_CLASS_DEAD: 1073 return ("DEAD"); 1074 default: 1075 snprintf(buffer, sizeof(buffer), "%d", class); 1076 return (buffer); 1077 } 1078} 1079 1080static void 1081mfi_decode_evt(struct mfi_softc *sc, struct mfi_evt_detail *detail) 1082{ 1083 1084 device_printf(sc->mfi_dev, "%d (%s/0x%04x/%s) - %s\n", detail->seq, 1085 format_timestamp(detail->time), detail->evt_class.members.locale, 1086 format_class(detail->evt_class.members.evt_class), detail->description); 1087} 1088 1089static int 1090mfi_aen_register(struct mfi_softc *sc, int seq, int locale) 1091{ 1092 struct mfi_command *cm; 1093 struct mfi_dcmd_frame *dcmd; 1094 union mfi_evt current_aen, prior_aen; 1095 struct mfi_evt_detail *ed = NULL; 1096 int error = 0; 1097 1098 current_aen.word = locale; 1099 if (sc->mfi_aen_cm != NULL) { 1100 prior_aen.word = 1101 ((uint32_t *)&sc->mfi_aen_cm->cm_frame->dcmd.mbox)[1]; 1102 if (prior_aen.members.evt_class <= current_aen.members.evt_class && 1103 !((prior_aen.members.locale & current_aen.members.locale) 1104 ^current_aen.members.locale)) { 1105 return (0); 1106 } else { 1107 prior_aen.members.locale |= current_aen.members.locale; 1108 if (prior_aen.members.evt_class 1109 < current_aen.members.evt_class) 1110 current_aen.members.evt_class = 1111 prior_aen.members.evt_class; 1112 mfi_abort(sc, sc->mfi_aen_cm); 1113 } 1114 } 1115 1116 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_WAIT, 1117 (void **)&ed, sizeof(*ed)); 1118 if (error) { 1119 goto out; 1120 } 1121 1122 dcmd = &cm->cm_frame->dcmd; 1123 ((uint32_t *)&dcmd->mbox)[0] = seq; 1124 ((uint32_t *)&dcmd->mbox)[1] = locale; 1125 cm->cm_flags = MFI_CMD_DATAIN; 1126 cm->cm_complete = mfi_aen_complete; 1127 1128 sc->mfi_aen_cm = cm; 1129 1130 mfi_enqueue_ready(cm); 1131 mfi_startio(sc); 1132 1133out: 1134 return (error); 1135} 1136 1137static void 1138mfi_aen_complete(struct mfi_command *cm) 1139{ 1140 struct mfi_frame_header *hdr; 1141 struct mfi_softc *sc; 1142 struct mfi_evt_detail *detail; 1143 struct mfi_aen *mfi_aen_entry, *tmp; 1144 int seq = 0, aborted = 0; 1145 1146 sc = cm->cm_sc; 1147 hdr = &cm->cm_frame->header; 1148 1149 if (sc->mfi_aen_cm == NULL) 1150 return; 1151 1152 if (sc->mfi_aen_cm->cm_aen_abort || 1153 hdr->cmd_status == MFI_STAT_INVALID_STATUS) { 1154 sc->mfi_aen_cm->cm_aen_abort = 0; 1155 aborted = 1; 1156 } else { 1157 sc->mfi_aen_triggered = 1; 1158 if (sc->mfi_poll_waiting) { 1159 sc->mfi_poll_waiting = 0; 1160 selwakeup(&sc->mfi_select); 1161 } 1162 detail = cm->cm_data; 1163 /* 1164 * XXX If this function is too expensive or is recursive, then 1165 * events should be put onto a queue and processed later. 1166 */ 1167 mfi_decode_evt(sc, detail); 1168 seq = detail->seq + 1; 1169 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1170 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1171 aen_link); 1172 PROC_LOCK(mfi_aen_entry->p); 1173 psignal(mfi_aen_entry->p, SIGIO); 1174 PROC_UNLOCK(mfi_aen_entry->p); 1175 free(mfi_aen_entry, M_MFIBUF); 1176 } 1177 } 1178 1179 free(cm->cm_data, M_MFIBUF); 1180 sc->mfi_aen_cm = NULL; 1181 wakeup(&sc->mfi_aen_cm); 1182 mfi_release_command(cm); 1183 1184 /* set it up again so the driver can catch more events */ 1185 if (!aborted) { 1186 mfi_aen_setup(sc, seq); 1187 } 1188} 1189 1190#define MAX_EVENTS 15 1191 1192static int 1193mfi_parse_entries(struct mfi_softc *sc, int start_seq, int stop_seq) 1194{ 1195 struct mfi_command *cm; 1196 struct mfi_dcmd_frame *dcmd; 1197 struct mfi_evt_list *el; 1198 union mfi_evt class_locale; 1199 int error, i, seq, size; 1200 1201 class_locale.members.reserved = 0; 1202 class_locale.members.locale = mfi_event_locale; 1203 class_locale.members.evt_class = mfi_event_class; 1204 1205 size = sizeof(struct mfi_evt_list) + sizeof(struct mfi_evt_detail) 1206 * (MAX_EVENTS - 1); 1207 el = malloc(size, M_MFIBUF, M_NOWAIT | M_ZERO); 1208 if (el == NULL) 1209 return (ENOMEM); 1210 1211 for (seq = start_seq;;) { 1212 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1213 free(el, M_MFIBUF); 1214 return (EBUSY); 1215 } 1216 1217 dcmd = &cm->cm_frame->dcmd; 1218 bzero(dcmd->mbox, MFI_MBOX_SIZE); 1219 dcmd->header.cmd = MFI_CMD_DCMD; 1220 dcmd->header.timeout = 0; 1221 dcmd->header.data_len = size; 1222 dcmd->opcode = MFI_DCMD_CTRL_EVENT_GET; 1223 ((uint32_t *)&dcmd->mbox)[0] = seq; 1224 ((uint32_t *)&dcmd->mbox)[1] = class_locale.word; 1225 cm->cm_sg = &dcmd->sgl; 1226 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 1227 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 1228 cm->cm_data = el; 1229 cm->cm_len = size; 1230 1231 if ((error = mfi_mapcmd(sc, cm)) != 0) { 1232 device_printf(sc->mfi_dev, 1233 "Failed to get controller entries\n"); 1234 mfi_release_command(cm); 1235 break; 1236 } 1237 1238 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1239 BUS_DMASYNC_POSTREAD); 1240 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1241 1242 if (dcmd->header.cmd_status == MFI_STAT_NOT_FOUND) { 1243 mfi_release_command(cm); 1244 break; 1245 } 1246 if (dcmd->header.cmd_status != MFI_STAT_OK) { 1247 device_printf(sc->mfi_dev, 1248 "Error %d fetching controller entries\n", 1249 dcmd->header.cmd_status); 1250 mfi_release_command(cm); 1251 break; 1252 } 1253 mfi_release_command(cm); 1254 1255 for (i = 0; i < el->count; i++) { 1256 /* 1257 * If this event is newer than 'stop_seq' then 1258 * break out of the loop. Note that the log 1259 * is a circular buffer so we have to handle 1260 * the case that our stop point is earlier in 1261 * the buffer than our start point. 1262 */ 1263 if (el->event[i].seq >= stop_seq) { 1264 if (start_seq <= stop_seq) 1265 break; 1266 else if (el->event[i].seq < start_seq) 1267 break; 1268 } 1269 mfi_decode_evt(sc, &el->event[i]); 1270 } 1271 seq = el->event[el->count - 1].seq + 1; 1272 } 1273 1274 free(el, M_MFIBUF); 1275 return (0); 1276} 1277 1278static int 1279mfi_add_ld(struct mfi_softc *sc, int id) 1280{ 1281 struct mfi_command *cm; 1282 struct mfi_dcmd_frame *dcmd = NULL; 1283 struct mfi_ld_info *ld_info = NULL; 1284 int error; 1285 1286 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1287 1288 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_INFO, 1289 (void **)&ld_info, sizeof(*ld_info)); 1290 if (error) { 1291 device_printf(sc->mfi_dev, 1292 "Failed to allocate for MFI_DCMD_LD_GET_INFO %d\n", error); 1293 if (ld_info) 1294 free(ld_info, M_MFIBUF); 1295 return (error); 1296 } 1297 cm->cm_flags = MFI_CMD_DATAIN; 1298 dcmd = &cm->cm_frame->dcmd; 1299 dcmd->mbox[0] = id; 1300 if (mfi_wait_command(sc, cm) != 0) { 1301 device_printf(sc->mfi_dev, 1302 "Failed to get logical drive: %d\n", id); 1303 free(ld_info, M_MFIBUF); 1304 return (0); 1305 } 1306 1307 mfi_add_ld_complete(cm); 1308 return (0); 1309} 1310 1311static void 1312mfi_add_ld_complete(struct mfi_command *cm) 1313{ 1314 struct mfi_frame_header *hdr; 1315 struct mfi_ld_info *ld_info; 1316 struct mfi_softc *sc; 1317 device_t child; 1318 1319 sc = cm->cm_sc; 1320 hdr = &cm->cm_frame->header; 1321 ld_info = cm->cm_private; 1322 1323 if (hdr->cmd_status != MFI_STAT_OK) { 1324 free(ld_info, M_MFIBUF); 1325 mfi_release_command(cm); 1326 return; 1327 } 1328 mfi_release_command(cm); 1329 1330 mtx_unlock(&sc->mfi_io_lock); 1331 mtx_lock(&Giant); 1332 if ((child = device_add_child(sc->mfi_dev, "mfid", -1)) == NULL) { 1333 device_printf(sc->mfi_dev, "Failed to add logical disk\n"); 1334 free(ld_info, M_MFIBUF); 1335 mtx_unlock(&Giant); 1336 mtx_lock(&sc->mfi_io_lock); 1337 return; 1338 } 1339 1340 device_set_ivars(child, ld_info); 1341 device_set_desc(child, "MFI Logical Disk"); 1342 bus_generic_attach(sc->mfi_dev); 1343 mtx_unlock(&Giant); 1344 mtx_lock(&sc->mfi_io_lock); 1345} 1346 1347static struct mfi_command * 1348mfi_bio_command(struct mfi_softc *sc) 1349{ 1350 struct mfi_io_frame *io; 1351 struct mfi_command *cm; 1352 struct bio *bio; 1353 int flags, blkcount; 1354 1355 if ((cm = mfi_dequeue_free(sc)) == NULL) 1356 return (NULL); 1357 1358 if ((bio = mfi_dequeue_bio(sc)) == NULL) { 1359 mfi_release_command(cm); 1360 return (NULL); 1361 } 1362 1363 io = &cm->cm_frame->io; 1364 switch (bio->bio_cmd & 0x03) { 1365 case BIO_READ: 1366 io->header.cmd = MFI_CMD_LD_READ; 1367 flags = MFI_CMD_DATAIN; 1368 break; 1369 case BIO_WRITE: 1370 io->header.cmd = MFI_CMD_LD_WRITE; 1371 flags = MFI_CMD_DATAOUT; 1372 break; 1373 default: 1374 panic("Invalid bio command"); 1375 } 1376 1377 /* Cheat with the sector length to avoid a non-constant division */ 1378 blkcount = (bio->bio_bcount + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1379 io->header.target_id = (uintptr_t)bio->bio_driver1; 1380 io->header.timeout = 0; 1381 io->header.flags = 0; 1382 io->header.sense_len = MFI_SENSE_LEN; 1383 io->header.data_len = blkcount; 1384 io->sense_addr_lo = cm->cm_sense_busaddr; 1385 io->sense_addr_hi = 0; 1386 io->lba_hi = (bio->bio_pblkno & 0xffffffff00000000) >> 32; 1387 io->lba_lo = bio->bio_pblkno & 0xffffffff; 1388 cm->cm_complete = mfi_bio_complete; 1389 cm->cm_private = bio; 1390 cm->cm_data = bio->bio_data; 1391 cm->cm_len = bio->bio_bcount; 1392 cm->cm_sg = &io->sgl; 1393 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1394 cm->cm_flags = flags; 1395 return (cm); 1396} 1397 1398static void 1399mfi_bio_complete(struct mfi_command *cm) 1400{ 1401 struct bio *bio; 1402 struct mfi_frame_header *hdr; 1403 struct mfi_softc *sc; 1404 1405 bio = cm->cm_private; 1406 hdr = &cm->cm_frame->header; 1407 sc = cm->cm_sc; 1408 1409 if ((hdr->cmd_status != MFI_STAT_OK) || (hdr->scsi_status != 0)) { 1410 bio->bio_flags |= BIO_ERROR; 1411 bio->bio_error = EIO; 1412 device_printf(sc->mfi_dev, "I/O error, status= %d " 1413 "scsi_status= %d\n", hdr->cmd_status, hdr->scsi_status); 1414 mfi_print_sense(cm->cm_sc, cm->cm_sense); 1415 } else if (cm->cm_error != 0) { 1416 bio->bio_flags |= BIO_ERROR; 1417 } 1418 1419 mfi_release_command(cm); 1420 mfi_disk_complete(bio); 1421} 1422 1423void 1424mfi_startio(struct mfi_softc *sc) 1425{ 1426 struct mfi_command *cm; 1427 struct ccb_hdr *ccbh; 1428 1429 for (;;) { 1430 /* Don't bother if we're short on resources */ 1431 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 1432 break; 1433 1434 /* Try a command that has already been prepared */ 1435 cm = mfi_dequeue_ready(sc); 1436 1437 if (cm == NULL) { 1438 if ((ccbh = TAILQ_FIRST(&sc->mfi_cam_ccbq)) != NULL) 1439 cm = sc->mfi_cam_start(ccbh); 1440 } 1441 1442 /* Nope, so look for work on the bioq */ 1443 if (cm == NULL) 1444 cm = mfi_bio_command(sc); 1445 1446 /* No work available, so exit */ 1447 if (cm == NULL) 1448 break; 1449 1450 /* Send the command to the controller */ 1451 if (mfi_mapcmd(sc, cm) != 0) { 1452 mfi_requeue_ready(cm); 1453 break; 1454 } 1455 } 1456} 1457 1458static int 1459mfi_mapcmd(struct mfi_softc *sc, struct mfi_command *cm) 1460{ 1461 int error, polled; 1462 1463 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1464 1465 if (cm->cm_data != NULL) { 1466 polled = (cm->cm_flags & MFI_CMD_POLLED) ? BUS_DMA_NOWAIT : 0; 1467 error = bus_dmamap_load(sc->mfi_buffer_dmat, cm->cm_dmamap, 1468 cm->cm_data, cm->cm_len, mfi_data_cb, cm, polled); 1469 if (error == EINPROGRESS) { 1470 sc->mfi_flags |= MFI_FLAGS_QFRZN; 1471 return (0); 1472 } 1473 } else { 1474 error = mfi_send_frame(sc, cm); 1475 } 1476 1477 return (error); 1478} 1479 1480static void 1481mfi_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1482{ 1483 struct mfi_frame_header *hdr; 1484 struct mfi_command *cm; 1485 union mfi_sgl *sgl; 1486 struct mfi_softc *sc; 1487 int i, dir; 1488 1489 cm = (struct mfi_command *)arg; 1490 sc = cm->cm_sc; 1491 hdr = &cm->cm_frame->header; 1492 sgl = cm->cm_sg; 1493 1494 if (error) { 1495 printf("error %d in callback\n", error); 1496 cm->cm_error = error; 1497 mfi_complete(sc, cm); 1498 return; 1499 } 1500 1501 if ((sc->mfi_flags & MFI_FLAGS_SG64) == 0) { 1502 for (i = 0; i < nsegs; i++) { 1503 sgl->sg32[i].addr = segs[i].ds_addr; 1504 sgl->sg32[i].len = segs[i].ds_len; 1505 } 1506 } else { 1507 for (i = 0; i < nsegs; i++) { 1508 sgl->sg64[i].addr = segs[i].ds_addr; 1509 sgl->sg64[i].len = segs[i].ds_len; 1510 } 1511 hdr->flags |= MFI_FRAME_SGL64; 1512 } 1513 hdr->sg_count = nsegs; 1514 1515 dir = 0; 1516 if (cm->cm_flags & MFI_CMD_DATAIN) { 1517 dir |= BUS_DMASYNC_PREREAD; 1518 hdr->flags |= MFI_FRAME_DIR_READ; 1519 } 1520 if (cm->cm_flags & MFI_CMD_DATAOUT) { 1521 dir |= BUS_DMASYNC_PREWRITE; 1522 hdr->flags |= MFI_FRAME_DIR_WRITE; 1523 } 1524 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1525 cm->cm_flags |= MFI_CMD_MAPPED; 1526 1527 /* 1528 * Instead of calculating the total number of frames in the 1529 * compound frame, it's already assumed that there will be at 1530 * least 1 frame, so don't compensate for the modulo of the 1531 * following division. 1532 */ 1533 cm->cm_total_frame_size += (sc->mfi_sge_size * nsegs); 1534 cm->cm_extra_frames = (cm->cm_total_frame_size - 1) / MFI_FRAME_SIZE; 1535 1536 mfi_send_frame(sc, cm); 1537 1538 return; 1539} 1540 1541static int 1542mfi_send_frame(struct mfi_softc *sc, struct mfi_command *cm) 1543{ 1544 struct mfi_frame_header *hdr; 1545 int tm = MFI_POLL_TIMEOUT_SECS * 1000; 1546 1547 hdr = &cm->cm_frame->header; 1548 1549 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) { 1550 cm->cm_timestamp = time_uptime; 1551 mfi_enqueue_busy(cm); 1552 } else { 1553 hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1554 hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; 1555 } 1556 1557 /* 1558 * The bus address of the command is aligned on a 64 byte boundary, 1559 * leaving the least 6 bits as zero. For whatever reason, the 1560 * hardware wants the address shifted right by three, leaving just 1561 * 3 zero bits. These three bits are then used as a prefetching 1562 * hint for the hardware to predict how many frames need to be 1563 * fetched across the bus. If a command has more than 8 frames 1564 * then the 3 bits are set to 0x7 and the firmware uses other 1565 * information in the command to determine the total amount to fetch. 1566 * However, FreeBSD doesn't support I/O larger than 128K, so 8 frames 1567 * is enough for both 32bit and 64bit systems. 1568 */ 1569 if (cm->cm_extra_frames > 7) 1570 cm->cm_extra_frames = 7; 1571 1572 sc->mfi_issue_cmd(sc,cm->cm_frame_busaddr,cm->cm_extra_frames); 1573 1574 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) 1575 return (0); 1576 1577 /* This is a polled command, so busy-wait for it to complete. */ 1578 while (hdr->cmd_status == MFI_STAT_INVALID_STATUS) { 1579 DELAY(1000); 1580 tm -= 1; 1581 if (tm <= 0) 1582 break; 1583 } 1584 1585 if (hdr->cmd_status == MFI_STAT_INVALID_STATUS) { 1586 device_printf(sc->mfi_dev, "Frame %p timed out " 1587 "command 0x%X\n", hdr, cm->cm_frame->dcmd.opcode); 1588 return (ETIMEDOUT); 1589 } 1590 1591 return (0); 1592} 1593 1594static void 1595mfi_complete(struct mfi_softc *sc, struct mfi_command *cm) 1596{ 1597 int dir; 1598 1599 if ((cm->cm_flags & MFI_CMD_MAPPED) != 0) { 1600 dir = 0; 1601 if (cm->cm_flags & MFI_CMD_DATAIN) 1602 dir |= BUS_DMASYNC_POSTREAD; 1603 if (cm->cm_flags & MFI_CMD_DATAOUT) 1604 dir |= BUS_DMASYNC_POSTWRITE; 1605 1606 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1607 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1608 cm->cm_flags &= ~MFI_CMD_MAPPED; 1609 } 1610 1611 cm->cm_flags |= MFI_CMD_COMPLETED; 1612 1613 if (cm->cm_complete != NULL) 1614 cm->cm_complete(cm); 1615 else 1616 wakeup(cm); 1617} 1618 1619static int 1620mfi_abort(struct mfi_softc *sc, struct mfi_command *cm_abort) 1621{ 1622 struct mfi_command *cm; 1623 struct mfi_abort_frame *abort; 1624 int i = 0; 1625 1626 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1627 1628 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1629 return (EBUSY); 1630 } 1631 1632 abort = &cm->cm_frame->abort; 1633 abort->header.cmd = MFI_CMD_ABORT; 1634 abort->header.flags = 0; 1635 abort->abort_context = cm_abort->cm_frame->header.context; 1636 abort->abort_mfi_addr_lo = cm_abort->cm_frame_busaddr; 1637 abort->abort_mfi_addr_hi = 0; 1638 cm->cm_data = NULL; 1639 cm->cm_flags = MFI_CMD_POLLED; 1640 1641 sc->mfi_aen_cm->cm_aen_abort = 1; 1642 mfi_mapcmd(sc, cm); 1643 mfi_release_command(cm); 1644 1645 while (i < 5 && sc->mfi_aen_cm != NULL) { 1646 msleep(&sc->mfi_aen_cm, &sc->mfi_io_lock, 0, "mfiabort", 5 * hz); 1647 i++; 1648 } 1649 1650 return (0); 1651} 1652 1653int 1654mfi_dump_blocks(struct mfi_softc *sc, int id, uint64_t lba, void *virt, int len) 1655{ 1656 struct mfi_command *cm; 1657 struct mfi_io_frame *io; 1658 int error; 1659 1660 if ((cm = mfi_dequeue_free(sc)) == NULL) 1661 return (EBUSY); 1662 1663 io = &cm->cm_frame->io; 1664 io->header.cmd = MFI_CMD_LD_WRITE; 1665 io->header.target_id = id; 1666 io->header.timeout = 0; 1667 io->header.flags = 0; 1668 io->header.sense_len = MFI_SENSE_LEN; 1669 io->header.data_len = (len + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1670 io->sense_addr_lo = cm->cm_sense_busaddr; 1671 io->sense_addr_hi = 0; 1672 io->lba_hi = (lba & 0xffffffff00000000) >> 32; 1673 io->lba_lo = lba & 0xffffffff; 1674 cm->cm_data = virt; 1675 cm->cm_len = len; 1676 cm->cm_sg = &io->sgl; 1677 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1678 cm->cm_flags = MFI_CMD_POLLED | MFI_CMD_DATAOUT; 1679 1680 error = mfi_mapcmd(sc, cm); 1681 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1682 BUS_DMASYNC_POSTWRITE); 1683 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1684 mfi_release_command(cm); 1685 1686 return (error); 1687} 1688 1689static int 1690mfi_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1691{ 1692 struct mfi_softc *sc; 1693 int error; 1694 1695 sc = dev->si_drv1; 1696 1697 mtx_lock(&sc->mfi_io_lock); 1698 if (sc->mfi_detaching) 1699 error = ENXIO; 1700 else { 1701 sc->mfi_flags |= MFI_FLAGS_OPEN; 1702 error = 0; 1703 } 1704 mtx_unlock(&sc->mfi_io_lock); 1705 1706 return (error); 1707} 1708 1709static int 1710mfi_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1711{ 1712 struct mfi_softc *sc; 1713 struct mfi_aen *mfi_aen_entry, *tmp; 1714 1715 sc = dev->si_drv1; 1716 1717 mtx_lock(&sc->mfi_io_lock); 1718 sc->mfi_flags &= ~MFI_FLAGS_OPEN; 1719 1720 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1721 if (mfi_aen_entry->p == curproc) { 1722 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1723 aen_link); 1724 free(mfi_aen_entry, M_MFIBUF); 1725 } 1726 } 1727 mtx_unlock(&sc->mfi_io_lock); 1728 return (0); 1729} 1730 1731static int 1732mfi_config_lock(struct mfi_softc *sc, uint32_t opcode) 1733{ 1734 1735 switch (opcode) { 1736 case MFI_DCMD_LD_DELETE: 1737 case MFI_DCMD_CFG_ADD: 1738 case MFI_DCMD_CFG_CLEAR: 1739 sx_xlock(&sc->mfi_config_lock); 1740 return (1); 1741 default: 1742 return (0); 1743 } 1744} 1745 1746static void 1747mfi_config_unlock(struct mfi_softc *sc, int locked) 1748{ 1749 1750 if (locked) 1751 sx_xunlock(&sc->mfi_config_lock); 1752} 1753 1754/* Perform pre-issue checks on commands from userland and possibly veto them. */ 1755static int 1756mfi_check_command_pre(struct mfi_softc *sc, struct mfi_command *cm) 1757{ 1758 struct mfi_disk *ld, *ld2; 1759 int error; 1760 1761 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1762 error = 0; 1763 switch (cm->cm_frame->dcmd.opcode) { 1764 case MFI_DCMD_LD_DELETE: 1765 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1766 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1767 break; 1768 } 1769 if (ld == NULL) 1770 error = ENOENT; 1771 else 1772 error = mfi_disk_disable(ld); 1773 break; 1774 case MFI_DCMD_CFG_CLEAR: 1775 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1776 error = mfi_disk_disable(ld); 1777 if (error) 1778 break; 1779 } 1780 if (error) { 1781 TAILQ_FOREACH(ld2, &sc->mfi_ld_tqh, ld_link) { 1782 if (ld2 == ld) 1783 break; 1784 mfi_disk_enable(ld2); 1785 } 1786 } 1787 break; 1788 default: 1789 break; 1790 } 1791 return (error); 1792} 1793 1794/* Perform post-issue checks on commands from userland. */ 1795static void 1796mfi_check_command_post(struct mfi_softc *sc, struct mfi_command *cm) 1797{ 1798 struct mfi_disk *ld, *ldn; 1799 1800 switch (cm->cm_frame->dcmd.opcode) { 1801 case MFI_DCMD_LD_DELETE: 1802 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1803 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1804 break; 1805 } 1806 KASSERT(ld != NULL, ("volume dissappeared")); 1807 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 1808 mtx_unlock(&sc->mfi_io_lock); 1809 mtx_lock(&Giant); 1810 device_delete_child(sc->mfi_dev, ld->ld_dev); 1811 mtx_unlock(&Giant); 1812 mtx_lock(&sc->mfi_io_lock); 1813 } else 1814 mfi_disk_enable(ld); 1815 break; 1816 case MFI_DCMD_CFG_CLEAR: 1817 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 1818 mtx_unlock(&sc->mfi_io_lock); 1819 mtx_lock(&Giant); 1820 TAILQ_FOREACH_SAFE(ld, &sc->mfi_ld_tqh, ld_link, ldn) { 1821 device_delete_child(sc->mfi_dev, ld->ld_dev); 1822 } 1823 mtx_unlock(&Giant); 1824 mtx_lock(&sc->mfi_io_lock); 1825 } else { 1826 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) 1827 mfi_disk_enable(ld); 1828 } 1829 break; 1830 case MFI_DCMD_CFG_ADD: 1831 mfi_ldprobe(sc); 1832 break; 1833 case MFI_DCMD_CFG_FOREIGN_IMPORT: 1834 mfi_ldprobe(sc); 1835 break; 1836 } 1837} 1838 1839static int 1840mfi_user_command(struct mfi_softc *sc, struct mfi_ioc_passthru *ioc) 1841{ 1842 struct mfi_command *cm; 1843 struct mfi_dcmd_frame *dcmd; 1844 void *ioc_buf = NULL; 1845 uint32_t context; 1846 int error = 0, locked; 1847 1848 1849 if (ioc->buf_size > 0) { 1850 ioc_buf = malloc(ioc->buf_size, M_MFIBUF, M_WAITOK); 1851 if (ioc_buf == NULL) { 1852 return (ENOMEM); 1853 } 1854 error = copyin(ioc->buf, ioc_buf, ioc->buf_size); 1855 if (error) { 1856 device_printf(sc->mfi_dev, "failed to copyin\n"); 1857 free(ioc_buf, M_MFIBUF); 1858 return (error); 1859 } 1860 } 1861 1862 locked = mfi_config_lock(sc, ioc->ioc_frame.opcode); 1863 1864 mtx_lock(&sc->mfi_io_lock); 1865 while ((cm = mfi_dequeue_free(sc)) == NULL) 1866 msleep(mfi_user_command, &sc->mfi_io_lock, 0, "mfiioc", hz); 1867 1868 /* Save context for later */ 1869 context = cm->cm_frame->header.context; 1870 1871 dcmd = &cm->cm_frame->dcmd; 1872 bcopy(&ioc->ioc_frame, dcmd, sizeof(struct mfi_dcmd_frame)); 1873 1874 cm->cm_sg = &dcmd->sgl; 1875 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 1876 cm->cm_data = ioc_buf; 1877 cm->cm_len = ioc->buf_size; 1878 1879 /* restore context */ 1880 cm->cm_frame->header.context = context; 1881 1882 /* Cheat since we don't know if we're writing or reading */ 1883 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 1884 1885 error = mfi_check_command_pre(sc, cm); 1886 if (error) 1887 goto out; 1888 1889 error = mfi_wait_command(sc, cm); 1890 if (error) { 1891 device_printf(sc->mfi_dev, "ioctl failed %d\n", error); 1892 goto out; 1893 } 1894 bcopy(dcmd, &ioc->ioc_frame, sizeof(struct mfi_dcmd_frame)); 1895 mfi_check_command_post(sc, cm); 1896out: 1897 mfi_release_command(cm); 1898 mtx_unlock(&sc->mfi_io_lock); 1899 mfi_config_unlock(sc, locked); 1900 if (ioc->buf_size > 0) 1901 error = copyout(ioc_buf, ioc->buf, ioc->buf_size); 1902 if (ioc_buf) 1903 free(ioc_buf, M_MFIBUF); 1904 return (error); 1905} 1906 1907#ifdef __amd64__ 1908#define PTRIN(p) ((void *)(uintptr_t)(p)) 1909#else 1910#define PTRIN(p) (p) 1911#endif 1912 1913static int 1914mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 1915{ 1916 struct mfi_softc *sc; 1917 union mfi_statrequest *ms; 1918 struct mfi_ioc_packet *ioc; 1919#ifdef __amd64__ 1920 struct mfi_ioc_packet32 *ioc32; 1921#endif 1922 struct mfi_ioc_aen *aen; 1923 struct mfi_command *cm = NULL; 1924 uint32_t context; 1925 union mfi_sense_ptr sense_ptr; 1926 uint8_t *data = NULL, *temp; 1927 int i; 1928 struct mfi_ioc_passthru *iop = (struct mfi_ioc_passthru *)arg; 1929#ifdef __amd64__ 1930 struct mfi_ioc_passthru32 *iop32 = (struct mfi_ioc_passthru32 *)arg; 1931 struct mfi_ioc_passthru iop_swab; 1932#endif 1933 int error, locked; 1934 1935 sc = dev->si_drv1; 1936 error = 0; 1937 1938 switch (cmd) { 1939 case MFIIO_STATS: 1940 ms = (union mfi_statrequest *)arg; 1941 switch (ms->ms_item) { 1942 case MFIQ_FREE: 1943 case MFIQ_BIO: 1944 case MFIQ_READY: 1945 case MFIQ_BUSY: 1946 bcopy(&sc->mfi_qstat[ms->ms_item], &ms->ms_qstat, 1947 sizeof(struct mfi_qstat)); 1948 break; 1949 default: 1950 error = ENOIOCTL; 1951 break; 1952 } 1953 break; 1954 case MFIIO_QUERY_DISK: 1955 { 1956 struct mfi_query_disk *qd; 1957 struct mfi_disk *ld; 1958 1959 qd = (struct mfi_query_disk *)arg; 1960 mtx_lock(&sc->mfi_io_lock); 1961 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1962 if (ld->ld_id == qd->array_id) 1963 break; 1964 } 1965 if (ld == NULL) { 1966 qd->present = 0; 1967 mtx_unlock(&sc->mfi_io_lock); 1968 return (0); 1969 } 1970 qd->present = 1; 1971 if (ld->ld_flags & MFI_DISK_FLAGS_OPEN) 1972 qd->open = 1; 1973 bzero(qd->devname, SPECNAMELEN + 1); 1974 snprintf(qd->devname, SPECNAMELEN, "mfid%d", ld->ld_unit); 1975 mtx_unlock(&sc->mfi_io_lock); 1976 break; 1977 } 1978 case MFI_CMD: 1979#ifdef __amd64__ 1980 case MFI_CMD32: 1981#endif 1982 { 1983 devclass_t devclass; 1984 ioc = (struct mfi_ioc_packet *)arg; 1985 int adapter; 1986 1987 adapter = ioc->mfi_adapter_no; 1988 if (device_get_unit(sc->mfi_dev) == 0 && adapter != 0) { 1989 devclass = devclass_find("mfi"); 1990 sc = devclass_get_softc(devclass, adapter); 1991 } 1992 mtx_lock(&sc->mfi_io_lock); 1993 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1994 mtx_unlock(&sc->mfi_io_lock); 1995 return (EBUSY); 1996 } 1997 mtx_unlock(&sc->mfi_io_lock); 1998 locked = 0; 1999 2000 /* 2001 * save off original context since copying from user 2002 * will clobber some data 2003 */ 2004 context = cm->cm_frame->header.context; 2005 2006 bcopy(ioc->mfi_frame.raw, cm->cm_frame, 2007 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2008 cm->cm_total_frame_size = (sizeof(union mfi_sgl) 2009 * ioc->mfi_sge_count) + ioc->mfi_sgl_off; 2010 if (ioc->mfi_sge_count) { 2011 cm->cm_sg = 2012 (union mfi_sgl *)&cm->cm_frame->bytes[ioc->mfi_sgl_off]; 2013 } 2014 cm->cm_flags = 0; 2015 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2016 cm->cm_flags |= MFI_CMD_DATAIN; 2017 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2018 cm->cm_flags |= MFI_CMD_DATAOUT; 2019 /* Legacy app shim */ 2020 if (cm->cm_flags == 0) 2021 cm->cm_flags |= MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 2022 cm->cm_len = cm->cm_frame->header.data_len; 2023 if (cm->cm_len && 2024 (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT))) { 2025 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2026 M_WAITOK | M_ZERO); 2027 if (cm->cm_data == NULL) { 2028 device_printf(sc->mfi_dev, "Malloc failed\n"); 2029 goto out; 2030 } 2031 } else { 2032 cm->cm_data = 0; 2033 } 2034 2035 /* restore header context */ 2036 cm->cm_frame->header.context = context; 2037 2038 temp = data; 2039 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2040 for (i = 0; i < ioc->mfi_sge_count; i++) { 2041#ifdef __amd64__ 2042 if (cmd == MFI_CMD) { 2043 /* Native */ 2044 error = copyin(ioc->mfi_sgl[i].iov_base, 2045 temp, 2046 ioc->mfi_sgl[i].iov_len); 2047 } else { 2048 void *temp_convert; 2049 /* 32bit */ 2050 ioc32 = (struct mfi_ioc_packet32 *)ioc; 2051 temp_convert = 2052 PTRIN(ioc32->mfi_sgl[i].iov_base); 2053 error = copyin(temp_convert, 2054 temp, 2055 ioc32->mfi_sgl[i].iov_len); 2056 } 2057#else 2058 error = copyin(ioc->mfi_sgl[i].iov_base, 2059 temp, 2060 ioc->mfi_sgl[i].iov_len); 2061#endif 2062 if (error != 0) { 2063 device_printf(sc->mfi_dev, 2064 "Copy in failed\n"); 2065 goto out; 2066 } 2067 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2068 } 2069 } 2070 2071 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2072 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2073 2074 if (cm->cm_frame->header.cmd == MFI_CMD_PD_SCSI_IO) { 2075 cm->cm_frame->pass.sense_addr_lo = cm->cm_sense_busaddr; 2076 cm->cm_frame->pass.sense_addr_hi = 0; 2077 } 2078 2079 mtx_lock(&sc->mfi_io_lock); 2080 error = mfi_check_command_pre(sc, cm); 2081 if (error) { 2082 mtx_unlock(&sc->mfi_io_lock); 2083 goto out; 2084 } 2085 2086 if ((error = mfi_wait_command(sc, cm)) != 0) { 2087 device_printf(sc->mfi_dev, 2088 "Controller polled failed\n"); 2089 mtx_unlock(&sc->mfi_io_lock); 2090 goto out; 2091 } 2092 2093 mfi_check_command_post(sc, cm); 2094 mtx_unlock(&sc->mfi_io_lock); 2095 2096 temp = data; 2097 if (cm->cm_flags & MFI_CMD_DATAIN) { 2098 for (i = 0; i < ioc->mfi_sge_count; i++) { 2099#ifdef __amd64__ 2100 if (cmd == MFI_CMD) { 2101 /* Native */ 2102 error = copyout(temp, 2103 ioc->mfi_sgl[i].iov_base, 2104 ioc->mfi_sgl[i].iov_len); 2105 } else { 2106 void *temp_convert; 2107 /* 32bit */ 2108 ioc32 = (struct mfi_ioc_packet32 *)ioc; 2109 temp_convert = 2110 PTRIN(ioc32->mfi_sgl[i].iov_base); 2111 error = copyout(temp, 2112 temp_convert, 2113 ioc32->mfi_sgl[i].iov_len); 2114 } 2115#else 2116 error = copyout(temp, 2117 ioc->mfi_sgl[i].iov_base, 2118 ioc->mfi_sgl[i].iov_len); 2119#endif 2120 if (error != 0) { 2121 device_printf(sc->mfi_dev, 2122 "Copy out failed\n"); 2123 goto out; 2124 } 2125 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2126 } 2127 } 2128 2129 if (ioc->mfi_sense_len) { 2130 /* get user-space sense ptr then copy out sense */ 2131 bcopy(&((struct mfi_ioc_packet*)arg) 2132 ->mfi_frame.raw[ioc->mfi_sense_off], 2133 &sense_ptr.sense_ptr_data[0], 2134 sizeof(sense_ptr.sense_ptr_data)); 2135#ifdef __amd64__ 2136 if (cmd != MFI_CMD) { 2137 /* 2138 * not 64bit native so zero out any address 2139 * over 32bit */ 2140 sense_ptr.addr.high = 0; 2141 } 2142#endif 2143 error = copyout(cm->cm_sense, sense_ptr.user_space, 2144 ioc->mfi_sense_len); 2145 if (error != 0) { 2146 device_printf(sc->mfi_dev, 2147 "Copy out failed\n"); 2148 goto out; 2149 } 2150 } 2151 2152 ioc->mfi_frame.hdr.cmd_status = cm->cm_frame->header.cmd_status; 2153out: 2154 mfi_config_unlock(sc, locked); 2155 if (data) 2156 free(data, M_MFIBUF); 2157 if (cm) { 2158 mtx_lock(&sc->mfi_io_lock); 2159 mfi_release_command(cm); 2160 mtx_unlock(&sc->mfi_io_lock); 2161 } 2162 2163 break; 2164 } 2165 case MFI_SET_AEN: 2166 aen = (struct mfi_ioc_aen *)arg; 2167 error = mfi_aen_register(sc, aen->aen_seq_num, 2168 aen->aen_class_locale); 2169 2170 break; 2171 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2172 { 2173 devclass_t devclass; 2174 struct mfi_linux_ioc_packet l_ioc; 2175 int adapter; 2176 2177 devclass = devclass_find("mfi"); 2178 if (devclass == NULL) 2179 return (ENOENT); 2180 2181 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2182 if (error) 2183 return (error); 2184 adapter = l_ioc.lioc_adapter_no; 2185 sc = devclass_get_softc(devclass, adapter); 2186 if (sc == NULL) 2187 return (ENOENT); 2188 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2189 cmd, arg, flag, td)); 2190 break; 2191 } 2192 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2193 { 2194 devclass_t devclass; 2195 struct mfi_linux_ioc_aen l_aen; 2196 int adapter; 2197 2198 devclass = devclass_find("mfi"); 2199 if (devclass == NULL) 2200 return (ENOENT); 2201 2202 error = copyin(arg, &l_aen, sizeof(l_aen)); 2203 if (error) 2204 return (error); 2205 adapter = l_aen.laen_adapter_no; 2206 sc = devclass_get_softc(devclass, adapter); 2207 if (sc == NULL) 2208 return (ENOENT); 2209 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2210 cmd, arg, flag, td)); 2211 break; 2212 } 2213#ifdef __amd64__ 2214 case MFIIO_PASSTHRU32: 2215 iop_swab.ioc_frame = iop32->ioc_frame; 2216 iop_swab.buf_size = iop32->buf_size; 2217 iop_swab.buf = PTRIN(iop32->buf); 2218 iop = &iop_swab; 2219 /* FALLTHROUGH */ 2220#endif 2221 case MFIIO_PASSTHRU: 2222 error = mfi_user_command(sc, iop); 2223#ifdef __amd64__ 2224 if (cmd == MFIIO_PASSTHRU32) 2225 iop32->ioc_frame = iop_swab.ioc_frame; 2226#endif 2227 break; 2228 default: 2229 device_printf(sc->mfi_dev, "IOCTL 0x%lx not handled\n", cmd); 2230 error = ENOENT; 2231 break; 2232 } 2233 2234 return (error); 2235} 2236 2237static int 2238mfi_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 2239{ 2240 struct mfi_softc *sc; 2241 struct mfi_linux_ioc_packet l_ioc; 2242 struct mfi_linux_ioc_aen l_aen; 2243 struct mfi_command *cm = NULL; 2244 struct mfi_aen *mfi_aen_entry; 2245 union mfi_sense_ptr sense_ptr; 2246 uint32_t context; 2247 uint8_t *data = NULL, *temp; 2248 int i; 2249 int error, locked; 2250 2251 sc = dev->si_drv1; 2252 error = 0; 2253 switch (cmd) { 2254 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2255 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2256 if (error != 0) 2257 return (error); 2258 2259 if (l_ioc.lioc_sge_count > MAX_LINUX_IOCTL_SGE) { 2260 return (EINVAL); 2261 } 2262 2263 mtx_lock(&sc->mfi_io_lock); 2264 if ((cm = mfi_dequeue_free(sc)) == NULL) { 2265 mtx_unlock(&sc->mfi_io_lock); 2266 return (EBUSY); 2267 } 2268 mtx_unlock(&sc->mfi_io_lock); 2269 locked = 0; 2270 2271 /* 2272 * save off original context since copying from user 2273 * will clobber some data 2274 */ 2275 context = cm->cm_frame->header.context; 2276 2277 bcopy(l_ioc.lioc_frame.raw, cm->cm_frame, 2278 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2279 cm->cm_total_frame_size = (sizeof(union mfi_sgl) 2280 * l_ioc.lioc_sge_count) + l_ioc.lioc_sgl_off; 2281 if (l_ioc.lioc_sge_count) 2282 cm->cm_sg = 2283 (union mfi_sgl *)&cm->cm_frame->bytes[l_ioc.lioc_sgl_off]; 2284 cm->cm_flags = 0; 2285 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2286 cm->cm_flags |= MFI_CMD_DATAIN; 2287 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2288 cm->cm_flags |= MFI_CMD_DATAOUT; 2289 cm->cm_len = cm->cm_frame->header.data_len; 2290 if (cm->cm_len && 2291 (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT))) { 2292 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2293 M_WAITOK | M_ZERO); 2294 if (cm->cm_data == NULL) { 2295 device_printf(sc->mfi_dev, "Malloc failed\n"); 2296 goto out; 2297 } 2298 } else { 2299 cm->cm_data = 0; 2300 } 2301 2302 /* restore header context */ 2303 cm->cm_frame->header.context = context; 2304 2305 temp = data; 2306 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2307 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2308 error = copyin(PTRIN(l_ioc.lioc_sgl[i].iov_base), 2309 temp, 2310 l_ioc.lioc_sgl[i].iov_len); 2311 if (error != 0) { 2312 device_printf(sc->mfi_dev, 2313 "Copy in failed\n"); 2314 goto out; 2315 } 2316 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2317 } 2318 } 2319 2320 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2321 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2322 2323 if (cm->cm_frame->header.cmd == MFI_CMD_PD_SCSI_IO) { 2324 cm->cm_frame->pass.sense_addr_lo = cm->cm_sense_busaddr; 2325 cm->cm_frame->pass.sense_addr_hi = 0; 2326 } 2327 2328 mtx_lock(&sc->mfi_io_lock); 2329 error = mfi_check_command_pre(sc, cm); 2330 if (error) { 2331 mtx_unlock(&sc->mfi_io_lock); 2332 goto out; 2333 } 2334 2335 if ((error = mfi_wait_command(sc, cm)) != 0) { 2336 device_printf(sc->mfi_dev, 2337 "Controller polled failed\n"); 2338 mtx_unlock(&sc->mfi_io_lock); 2339 goto out; 2340 } 2341 2342 mfi_check_command_post(sc, cm); 2343 mtx_unlock(&sc->mfi_io_lock); 2344 2345 temp = data; 2346 if (cm->cm_flags & MFI_CMD_DATAIN) { 2347 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2348 error = copyout(temp, 2349 PTRIN(l_ioc.lioc_sgl[i].iov_base), 2350 l_ioc.lioc_sgl[i].iov_len); 2351 if (error != 0) { 2352 device_printf(sc->mfi_dev, 2353 "Copy out failed\n"); 2354 goto out; 2355 } 2356 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2357 } 2358 } 2359 2360 if (l_ioc.lioc_sense_len) { 2361 /* get user-space sense ptr then copy out sense */ 2362 bcopy(&((struct mfi_linux_ioc_packet*)arg) 2363 ->lioc_frame.raw[l_ioc.lioc_sense_off], 2364 &sense_ptr.sense_ptr_data[0], 2365 sizeof(sense_ptr.sense_ptr_data)); 2366#ifdef __amd64__ 2367 /* 2368 * only 32bit Linux support so zero out any 2369 * address over 32bit 2370 */ 2371 sense_ptr.addr.high = 0; 2372#endif 2373 error = copyout(cm->cm_sense, sense_ptr.user_space, 2374 l_ioc.lioc_sense_len); 2375 if (error != 0) { 2376 device_printf(sc->mfi_dev, 2377 "Copy out failed\n"); 2378 goto out; 2379 } 2380 } 2381 2382 error = copyout(&cm->cm_frame->header.cmd_status, 2383 &((struct mfi_linux_ioc_packet*)arg) 2384 ->lioc_frame.hdr.cmd_status, 2385 1); 2386 if (error != 0) { 2387 device_printf(sc->mfi_dev, 2388 "Copy out failed\n"); 2389 goto out; 2390 } 2391 2392out: 2393 mfi_config_unlock(sc, locked); 2394 if (data) 2395 free(data, M_MFIBUF); 2396 if (cm) { 2397 mtx_lock(&sc->mfi_io_lock); 2398 mfi_release_command(cm); 2399 mtx_unlock(&sc->mfi_io_lock); 2400 } 2401 2402 return (error); 2403 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2404 error = copyin(arg, &l_aen, sizeof(l_aen)); 2405 if (error != 0) 2406 return (error); 2407 printf("AEN IMPLEMENTED for pid %d\n", curproc->p_pid); 2408 mfi_aen_entry = malloc(sizeof(struct mfi_aen), M_MFIBUF, 2409 M_WAITOK); 2410 mtx_lock(&sc->mfi_io_lock); 2411 if (mfi_aen_entry != NULL) { 2412 mfi_aen_entry->p = curproc; 2413 TAILQ_INSERT_TAIL(&sc->mfi_aen_pids, mfi_aen_entry, 2414 aen_link); 2415 } 2416 error = mfi_aen_register(sc, l_aen.laen_seq_num, 2417 l_aen.laen_class_locale); 2418 2419 if (error != 0) { 2420 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 2421 aen_link); 2422 free(mfi_aen_entry, M_MFIBUF); 2423 } 2424 mtx_unlock(&sc->mfi_io_lock); 2425 2426 return (error); 2427 default: 2428 device_printf(sc->mfi_dev, "IOCTL 0x%lx not handled\n", cmd); 2429 error = ENOENT; 2430 break; 2431 } 2432 2433 return (error); 2434} 2435 2436static int 2437mfi_poll(struct cdev *dev, int poll_events, struct thread *td) 2438{ 2439 struct mfi_softc *sc; 2440 int revents = 0; 2441 2442 sc = dev->si_drv1; 2443 2444 if (poll_events & (POLLIN | POLLRDNORM)) { 2445 if (sc->mfi_aen_triggered != 0) { 2446 revents |= poll_events & (POLLIN | POLLRDNORM); 2447 sc->mfi_aen_triggered = 0; 2448 } 2449 if (sc->mfi_aen_triggered == 0 && sc->mfi_aen_cm == NULL) { 2450 revents |= POLLERR; 2451 } 2452 } 2453 2454 if (revents == 0) { 2455 if (poll_events & (POLLIN | POLLRDNORM)) { 2456 sc->mfi_poll_waiting = 1; 2457 selrecord(td, &sc->mfi_select); 2458 } 2459 } 2460 2461 return revents; 2462} 2463 2464 2465static void 2466mfi_dump_all(void) 2467{ 2468 struct mfi_softc *sc; 2469 struct mfi_command *cm; 2470 devclass_t dc; 2471 time_t deadline; 2472 int timedout; 2473 int i; 2474 2475 dc = devclass_find("mfi"); 2476 if (dc == NULL) { 2477 printf("No mfi dev class\n"); 2478 return; 2479 } 2480 2481 for (i = 0; ; i++) { 2482 sc = devclass_get_softc(dc, i); 2483 if (sc == NULL) 2484 break; 2485 device_printf(sc->mfi_dev, "Dumping\n\n"); 2486 timedout = 0; 2487 deadline = time_uptime - MFI_CMD_TIMEOUT; 2488 mtx_lock(&sc->mfi_io_lock); 2489 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2490 if (cm->cm_timestamp < deadline) { 2491 device_printf(sc->mfi_dev, 2492 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2493 (int)(time_uptime - cm->cm_timestamp)); 2494 MFI_PRINT_CMD(cm); 2495 timedout++; 2496 } 2497 } 2498 2499#if 0 2500 if (timedout) 2501 MFI_DUMP_CMDS(SC); 2502#endif 2503 2504 mtx_unlock(&sc->mfi_io_lock); 2505 } 2506 2507 return; 2508} 2509 2510static void 2511mfi_timeout(void *data) 2512{ 2513 struct mfi_softc *sc = (struct mfi_softc *)data; 2514 struct mfi_command *cm; 2515 time_t deadline; 2516 int timedout = 0; 2517 2518 deadline = time_uptime - MFI_CMD_TIMEOUT; 2519 mtx_lock(&sc->mfi_io_lock); 2520 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2521 if (sc->mfi_aen_cm == cm) 2522 continue; 2523 if ((sc->mfi_aen_cm != cm) && (cm->cm_timestamp < deadline)) { 2524 device_printf(sc->mfi_dev, 2525 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2526 (int)(time_uptime - cm->cm_timestamp)); 2527 MFI_PRINT_CMD(cm); 2528 MFI_VALIDATE_CMD(sc, cm); 2529 timedout++; 2530 } 2531 } 2532 2533#if 0 2534 if (timedout) 2535 MFI_DUMP_CMDS(SC); 2536#endif 2537 2538 mtx_unlock(&sc->mfi_io_lock); 2539 2540 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 2541 mfi_timeout, sc); 2542 2543 if (0) 2544 mfi_dump_all(); 2545 return; 2546} 2547