mfi.c revision 178968
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 178968 2008-05-12 14:09:19Z scottl $"); 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_get_entry(struct mfi_softc *, 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, d_thread_t *); 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 MFI_WRITE4(sc, MFI_OMSK, ~MFI_1078_EIM); 167} 168 169static int32_t 170mfi_read_fw_status_xscale(struct mfi_softc *sc) 171{ 172 return MFI_READ4(sc, MFI_OMSG0); 173} 174 175static int32_t 176mfi_read_fw_status_ppc(struct mfi_softc *sc) 177{ 178 return MFI_READ4(sc, MFI_OSP0); 179} 180 181static int 182mfi_check_clear_intr_xscale(struct mfi_softc *sc) 183{ 184 int32_t status; 185 186 status = MFI_READ4(sc, MFI_OSTS); 187 if ((status & MFI_OSTS_INTR_VALID) == 0) 188 return 1; 189 190 MFI_WRITE4(sc, MFI_OSTS, status); 191 return 0; 192 } 193 194static int 195mfi_check_clear_intr_ppc(struct mfi_softc *sc) 196{ 197 int32_t status; 198 199 status = MFI_READ4(sc, MFI_OSTS); 200 if (!status) 201 return 1; 202 203 MFI_WRITE4(sc, MFI_ODCR0, status); 204 return 0; 205 } 206 207static void 208mfi_issue_cmd_xscale(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt) 209{ 210 MFI_WRITE4(sc, MFI_IQP,(bus_add >>3)|frame_cnt); 211} 212 213static void 214mfi_issue_cmd_ppc(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt) 215{ 216 MFI_WRITE4(sc, MFI_IQP, (bus_add |frame_cnt <<1)|1 ); 217} 218 219static int 220mfi_transition_firmware(struct mfi_softc *sc) 221{ 222 int32_t fw_state, cur_state; 223 int max_wait, i; 224 225 fw_state = sc->mfi_read_fw_status(sc)& MFI_FWSTATE_MASK; 226 while (fw_state != MFI_FWSTATE_READY) { 227 if (bootverbose) 228 device_printf(sc->mfi_dev, "Waiting for firmware to " 229 "become ready\n"); 230 cur_state = fw_state; 231 switch (fw_state) { 232 case MFI_FWSTATE_FAULT: 233 device_printf(sc->mfi_dev, "Firmware fault\n"); 234 return (ENXIO); 235 case MFI_FWSTATE_WAIT_HANDSHAKE: 236 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_CLEAR_HANDSHAKE); 237 max_wait = 2; 238 break; 239 case MFI_FWSTATE_OPERATIONAL: 240 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_READY); 241 max_wait = 10; 242 break; 243 case MFI_FWSTATE_UNDEFINED: 244 case MFI_FWSTATE_BB_INIT: 245 max_wait = 2; 246 break; 247 case MFI_FWSTATE_FW_INIT: 248 case MFI_FWSTATE_DEVICE_SCAN: 249 case MFI_FWSTATE_FLUSH_CACHE: 250 max_wait = 20; 251 break; 252 default: 253 device_printf(sc->mfi_dev,"Unknown firmware state %d\n", 254 fw_state); 255 return (ENXIO); 256 } 257 for (i = 0; i < (max_wait * 10); i++) { 258 fw_state = sc->mfi_read_fw_status(sc) & MFI_FWSTATE_MASK; 259 if (fw_state == cur_state) 260 DELAY(100000); 261 else 262 break; 263 } 264 if (fw_state == cur_state) { 265 device_printf(sc->mfi_dev, "firmware stuck in state " 266 "%#x\n", fw_state); 267 return (ENXIO); 268 } 269 } 270 return (0); 271} 272 273static void 274mfi_addr32_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 275{ 276 uint32_t *addr; 277 278 addr = arg; 279 *addr = segs[0].ds_addr; 280} 281 282int 283mfi_attach(struct mfi_softc *sc) 284{ 285 uint32_t status; 286 int error, commsz, framessz, sensesz; 287 int frames, unit, max_fw_sge; 288 device_printf(sc->mfi_dev, "Megaraid SAS driver Ver 2.00 \n"); 289 290 mtx_init(&sc->mfi_io_lock, "MFI I/O lock", NULL, MTX_DEF); 291 sx_init(&sc->mfi_config_lock, "MFI config"); 292 TAILQ_INIT(&sc->mfi_ld_tqh); 293 TAILQ_INIT(&sc->mfi_aen_pids); 294 TAILQ_INIT(&sc->mfi_cam_ccbq); 295 296 mfi_initq_free(sc); 297 mfi_initq_ready(sc); 298 mfi_initq_busy(sc); 299 mfi_initq_bio(sc); 300 301 if (sc->mfi_flags & MFI_FLAGS_1064R) { 302 sc->mfi_enable_intr = mfi_enable_intr_xscale; 303 sc->mfi_read_fw_status = mfi_read_fw_status_xscale; 304 sc->mfi_check_clear_intr = mfi_check_clear_intr_xscale; 305 sc->mfi_issue_cmd = mfi_issue_cmd_xscale; 306 } 307 else { 308 sc->mfi_enable_intr = mfi_enable_intr_ppc; 309 sc->mfi_read_fw_status = mfi_read_fw_status_ppc; 310 sc->mfi_check_clear_intr = mfi_check_clear_intr_ppc; 311 sc->mfi_issue_cmd = mfi_issue_cmd_ppc; 312 } 313 314 315 /* Before we get too far, see if the firmware is working */ 316 if ((error = mfi_transition_firmware(sc)) != 0) { 317 device_printf(sc->mfi_dev, "Firmware not in READY state, " 318 "error %d\n", error); 319 return (ENXIO); 320 } 321 322 /* 323 * Get information needed for sizing the contiguous memory for the 324 * frame pool. Size down the sgl parameter since we know that 325 * we will never need more than what's required for MAXPHYS. 326 * It would be nice if these constants were available at runtime 327 * instead of compile time. 328 */ 329 status = sc->mfi_read_fw_status(sc); 330 sc->mfi_max_fw_cmds = status & MFI_FWSTATE_MAXCMD_MASK; 331 max_fw_sge = (status & MFI_FWSTATE_MAXSGL_MASK) >> 16; 332 sc->mfi_max_sge = min(max_fw_sge, ((MAXPHYS / PAGE_SIZE) + 1)); 333 334 /* 335 * Create the dma tag for data buffers. Used both for block I/O 336 * and for various internal data queries. 337 */ 338 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 339 1, 0, /* algnmnt, boundary */ 340 BUS_SPACE_MAXADDR, /* lowaddr */ 341 BUS_SPACE_MAXADDR, /* highaddr */ 342 NULL, NULL, /* filter, filterarg */ 343 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 344 sc->mfi_max_sge, /* nsegments */ 345 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 346 BUS_DMA_ALLOCNOW, /* flags */ 347 busdma_lock_mutex, /* lockfunc */ 348 &sc->mfi_io_lock, /* lockfuncarg */ 349 &sc->mfi_buffer_dmat)) { 350 device_printf(sc->mfi_dev, "Cannot allocate buffer DMA tag\n"); 351 return (ENOMEM); 352 } 353 354 /* 355 * Allocate DMA memory for the comms queues. Keep it under 4GB for 356 * efficiency. The mfi_hwcomms struct includes space for 1 reply queue 357 * entry, so the calculated size here will be will be 1 more than 358 * mfi_max_fw_cmds. This is apparently a requirement of the hardware. 359 */ 360 commsz = (sizeof(uint32_t) * sc->mfi_max_fw_cmds) + 361 sizeof(struct mfi_hwcomms); 362 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 363 1, 0, /* algnmnt, boundary */ 364 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 365 BUS_SPACE_MAXADDR, /* highaddr */ 366 NULL, NULL, /* filter, filterarg */ 367 commsz, /* maxsize */ 368 1, /* msegments */ 369 commsz, /* maxsegsize */ 370 0, /* flags */ 371 NULL, NULL, /* lockfunc, lockarg */ 372 &sc->mfi_comms_dmat)) { 373 device_printf(sc->mfi_dev, "Cannot allocate comms DMA tag\n"); 374 return (ENOMEM); 375 } 376 if (bus_dmamem_alloc(sc->mfi_comms_dmat, (void **)&sc->mfi_comms, 377 BUS_DMA_NOWAIT, &sc->mfi_comms_dmamap)) { 378 device_printf(sc->mfi_dev, "Cannot allocate comms memory\n"); 379 return (ENOMEM); 380 } 381 bzero(sc->mfi_comms, commsz); 382 bus_dmamap_load(sc->mfi_comms_dmat, sc->mfi_comms_dmamap, 383 sc->mfi_comms, commsz, mfi_addr32_cb, &sc->mfi_comms_busaddr, 0); 384 385 /* 386 * Allocate DMA memory for the command frames. Keep them in the 387 * lower 4GB for efficiency. Calculate the size of the commands at 388 * the same time; each command is one 64 byte frame plus a set of 389 * additional frames for holding sg lists or other data. 390 * The assumption here is that the SG list will start at the second 391 * frame and not use the unused bytes in the first frame. While this 392 * isn't technically correct, it simplifies the calculation and allows 393 * for command frames that might be larger than an mfi_io_frame. 394 */ 395 if (sizeof(bus_addr_t) == 8) { 396 sc->mfi_sge_size = sizeof(struct mfi_sg64); 397 sc->mfi_flags |= MFI_FLAGS_SG64; 398 } else { 399 sc->mfi_sge_size = sizeof(struct mfi_sg32); 400 } 401 frames = (sc->mfi_sge_size * sc->mfi_max_sge - 1) / MFI_FRAME_SIZE + 2; 402 sc->mfi_cmd_size = frames * MFI_FRAME_SIZE; 403 framessz = sc->mfi_cmd_size * sc->mfi_max_fw_cmds; 404 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 405 64, 0, /* algnmnt, boundary */ 406 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 407 BUS_SPACE_MAXADDR, /* highaddr */ 408 NULL, NULL, /* filter, filterarg */ 409 framessz, /* maxsize */ 410 1, /* nsegments */ 411 framessz, /* maxsegsize */ 412 0, /* flags */ 413 NULL, NULL, /* lockfunc, lockarg */ 414 &sc->mfi_frames_dmat)) { 415 device_printf(sc->mfi_dev, "Cannot allocate frame DMA tag\n"); 416 return (ENOMEM); 417 } 418 if (bus_dmamem_alloc(sc->mfi_frames_dmat, (void **)&sc->mfi_frames, 419 BUS_DMA_NOWAIT, &sc->mfi_frames_dmamap)) { 420 device_printf(sc->mfi_dev, "Cannot allocate frames memory\n"); 421 return (ENOMEM); 422 } 423 bzero(sc->mfi_frames, framessz); 424 bus_dmamap_load(sc->mfi_frames_dmat, sc->mfi_frames_dmamap, 425 sc->mfi_frames, framessz, mfi_addr32_cb, &sc->mfi_frames_busaddr,0); 426 427 /* 428 * Allocate DMA memory for the frame sense data. Keep them in the 429 * lower 4GB for efficiency 430 */ 431 sensesz = sc->mfi_max_fw_cmds * MFI_SENSE_LEN; 432 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 433 4, 0, /* algnmnt, boundary */ 434 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 435 BUS_SPACE_MAXADDR, /* highaddr */ 436 NULL, NULL, /* filter, filterarg */ 437 sensesz, /* maxsize */ 438 1, /* nsegments */ 439 sensesz, /* maxsegsize */ 440 0, /* flags */ 441 NULL, NULL, /* lockfunc, lockarg */ 442 &sc->mfi_sense_dmat)) { 443 device_printf(sc->mfi_dev, "Cannot allocate sense DMA tag\n"); 444 return (ENOMEM); 445 } 446 if (bus_dmamem_alloc(sc->mfi_sense_dmat, (void **)&sc->mfi_sense, 447 BUS_DMA_NOWAIT, &sc->mfi_sense_dmamap)) { 448 device_printf(sc->mfi_dev, "Cannot allocate sense memory\n"); 449 return (ENOMEM); 450 } 451 bus_dmamap_load(sc->mfi_sense_dmat, sc->mfi_sense_dmamap, 452 sc->mfi_sense, sensesz, mfi_addr32_cb, &sc->mfi_sense_busaddr, 0); 453 454 if ((error = mfi_alloc_commands(sc)) != 0) 455 return (error); 456 457 if ((error = mfi_comms_init(sc)) != 0) 458 return (error); 459 460 if ((error = mfi_get_controller_info(sc)) != 0) 461 return (error); 462 463 mtx_lock(&sc->mfi_io_lock); 464 if ((error = mfi_aen_setup(sc, 0), 0) != 0) { 465 mtx_unlock(&sc->mfi_io_lock); 466 return (error); 467 } 468 mtx_unlock(&sc->mfi_io_lock); 469 470 /* 471 * Set up the interrupt handler. XXX This should happen in 472 * mfi_pci.c 473 */ 474 sc->mfi_irq_rid = 0; 475 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 476 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 477 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 478 return (EINVAL); 479 } 480 if (bus_setup_intr(sc->mfi_dev, sc->mfi_irq, INTR_MPSAFE|INTR_TYPE_BIO, 481 NULL, mfi_intr, sc, &sc->mfi_intr)) { 482 device_printf(sc->mfi_dev, "Cannot set up interrupt\n"); 483 return (EINVAL); 484 } 485 486 /* Register a config hook to probe the bus for arrays */ 487 sc->mfi_ich.ich_func = mfi_startup; 488 sc->mfi_ich.ich_arg = sc; 489 if (config_intrhook_establish(&sc->mfi_ich) != 0) { 490 device_printf(sc->mfi_dev, "Cannot establish configuration " 491 "hook\n"); 492 return (EINVAL); 493 } 494 495 /* 496 * Register a shutdown handler. 497 */ 498 if ((sc->mfi_eh = EVENTHANDLER_REGISTER(shutdown_final, mfi_shutdown, 499 sc, SHUTDOWN_PRI_DEFAULT)) == NULL) { 500 device_printf(sc->mfi_dev, "Warning: shutdown event " 501 "registration failed\n"); 502 } 503 504 /* 505 * Create the control device for doing management 506 */ 507 unit = device_get_unit(sc->mfi_dev); 508 sc->mfi_cdev = make_dev(&mfi_cdevsw, unit, UID_ROOT, GID_OPERATOR, 509 0640, "mfi%d", unit); 510 if (unit == 0) 511 make_dev_alias(sc->mfi_cdev, "megaraid_sas_ioctl_node"); 512 if (sc->mfi_cdev != NULL) 513 sc->mfi_cdev->si_drv1 = sc; 514 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 515 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 516 OID_AUTO, "delete_busy_volumes", CTLFLAG_RW, 517 &sc->mfi_delete_busy_volumes, 0, "Allow removal of busy volumes"); 518 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 519 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 520 OID_AUTO, "keep_deleted_volumes", CTLFLAG_RW, 521 &sc->mfi_keep_deleted_volumes, 0, 522 "Don't detach the mfid device for a busy volume that is deleted"); 523 524 device_add_child(sc->mfi_dev, "mfip", -1); 525 bus_generic_attach(sc->mfi_dev); 526 527 /* Start the timeout watchdog */ 528 callout_init(&sc->mfi_watchdog_callout, CALLOUT_MPSAFE); 529 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 530 mfi_timeout, sc); 531 532 return (0); 533} 534 535static int 536mfi_alloc_commands(struct mfi_softc *sc) 537{ 538 struct mfi_command *cm; 539 int i, ncmds; 540 541 /* 542 * XXX Should we allocate all the commands up front, or allocate on 543 * demand later like 'aac' does? 544 */ 545 ncmds = MIN(mfi_max_cmds, sc->mfi_max_fw_cmds); 546 if (bootverbose) 547 device_printf(sc->mfi_dev, "Max fw cmds= %d, sizing driver " 548 "pool to %d\n", sc->mfi_max_fw_cmds, ncmds); 549 550 sc->mfi_commands = malloc(sizeof(struct mfi_command) * ncmds, M_MFIBUF, 551 M_WAITOK | M_ZERO); 552 553 for (i = 0; i < ncmds; i++) { 554 cm = &sc->mfi_commands[i]; 555 cm->cm_frame = (union mfi_frame *)((uintptr_t)sc->mfi_frames + 556 sc->mfi_cmd_size * i); 557 cm->cm_frame_busaddr = sc->mfi_frames_busaddr + 558 sc->mfi_cmd_size * i; 559 cm->cm_frame->header.context = i; 560 cm->cm_sense = &sc->mfi_sense[i]; 561 cm->cm_sense_busaddr= sc->mfi_sense_busaddr + MFI_SENSE_LEN * i; 562 cm->cm_sc = sc; 563 cm->cm_index = i; 564 if (bus_dmamap_create(sc->mfi_buffer_dmat, 0, 565 &cm->cm_dmamap) == 0) 566 mfi_release_command(cm); 567 else 568 break; 569 sc->mfi_total_cmds++; 570 } 571 572 return (0); 573} 574 575void 576mfi_release_command(struct mfi_command *cm) 577{ 578 struct mfi_frame_header *hdr; 579 uint32_t *hdr_data; 580 581 /* 582 * Zero out the important fields of the frame, but make sure the 583 * context field is preserved. For efficiency, handle the fields 584 * as 32 bit words. Clear out the first S/G entry too for safety. 585 */ 586 hdr = &cm->cm_frame->header; 587 if (cm->cm_data != NULL && hdr->sg_count) { 588 cm->cm_sg->sg32[0].len = 0; 589 cm->cm_sg->sg32[0].addr = 0; 590 } 591 592 hdr_data = (uint32_t *)cm->cm_frame; 593 hdr_data[0] = 0; /* cmd, sense_len, cmd_status, scsi_status */ 594 hdr_data[1] = 0; /* target_id, lun_id, cdb_len, sg_count */ 595 hdr_data[4] = 0; /* flags, timeout */ 596 hdr_data[5] = 0; /* data_len */ 597 598 cm->cm_extra_frames = 0; 599 cm->cm_flags = 0; 600 cm->cm_complete = NULL; 601 cm->cm_private = NULL; 602 cm->cm_data = NULL; 603 cm->cm_sg = 0; 604 cm->cm_total_frame_size = 0; 605 606 mfi_enqueue_free(cm); 607} 608 609static int 610mfi_dcmd_command(struct mfi_softc *sc, struct mfi_command **cmp, uint32_t opcode, 611 void **bufp, size_t bufsize) 612{ 613 struct mfi_command *cm; 614 struct mfi_dcmd_frame *dcmd; 615 void *buf = NULL; 616 617 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 618 619 cm = mfi_dequeue_free(sc); 620 if (cm == NULL) 621 return (EBUSY); 622 623 if ((bufsize > 0) && (bufp != NULL)) { 624 if (*bufp == NULL) { 625 buf = malloc(bufsize, M_MFIBUF, M_NOWAIT|M_ZERO); 626 if (buf == NULL) { 627 mfi_release_command(cm); 628 return (ENOMEM); 629 } 630 *bufp = buf; 631 } else { 632 buf = *bufp; 633 } 634 } 635 636 dcmd = &cm->cm_frame->dcmd; 637 bzero(dcmd->mbox, MFI_MBOX_SIZE); 638 dcmd->header.cmd = MFI_CMD_DCMD; 639 dcmd->header.timeout = 0; 640 dcmd->header.flags = 0; 641 dcmd->header.data_len = bufsize; 642 dcmd->opcode = opcode; 643 cm->cm_sg = &dcmd->sgl; 644 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 645 cm->cm_flags = 0; 646 cm->cm_data = buf; 647 cm->cm_private = buf; 648 cm->cm_len = bufsize; 649 650 *cmp = cm; 651 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 652 *bufp = buf; 653 return (0); 654} 655 656static int 657mfi_comms_init(struct mfi_softc *sc) 658{ 659 struct mfi_command *cm; 660 struct mfi_init_frame *init; 661 struct mfi_init_qinfo *qinfo; 662 int error; 663 664 mtx_lock(&sc->mfi_io_lock); 665 if ((cm = mfi_dequeue_free(sc)) == NULL) 666 return (EBUSY); 667 668 /* 669 * Abuse the SG list area of the frame to hold the init_qinfo 670 * object; 671 */ 672 init = &cm->cm_frame->init; 673 qinfo = (struct mfi_init_qinfo *)((uintptr_t)init + MFI_FRAME_SIZE); 674 675 bzero(qinfo, sizeof(struct mfi_init_qinfo)); 676 qinfo->rq_entries = sc->mfi_max_fw_cmds + 1; 677 qinfo->rq_addr_lo = sc->mfi_comms_busaddr + 678 offsetof(struct mfi_hwcomms, hw_reply_q); 679 qinfo->pi_addr_lo = sc->mfi_comms_busaddr + 680 offsetof(struct mfi_hwcomms, hw_pi); 681 qinfo->ci_addr_lo = sc->mfi_comms_busaddr + 682 offsetof(struct mfi_hwcomms, hw_ci); 683 684 init->header.cmd = MFI_CMD_INIT; 685 init->header.data_len = sizeof(struct mfi_init_qinfo); 686 init->qinfo_new_addr_lo = cm->cm_frame_busaddr + MFI_FRAME_SIZE; 687 cm->cm_data = NULL; 688 cm->cm_flags = MFI_CMD_POLLED; 689 690 if ((error = mfi_mapcmd(sc, cm)) != 0) { 691 device_printf(sc->mfi_dev, "failed to send init command\n"); 692 mtx_unlock(&sc->mfi_io_lock); 693 return (error); 694 } 695 mfi_release_command(cm); 696 mtx_unlock(&sc->mfi_io_lock); 697 698 return (0); 699} 700 701static int 702mfi_get_controller_info(struct mfi_softc *sc) 703{ 704 struct mfi_command *cm = NULL; 705 struct mfi_ctrl_info *ci = NULL; 706 uint32_t max_sectors_1, max_sectors_2; 707 int error; 708 709 mtx_lock(&sc->mfi_io_lock); 710 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_GETINFO, 711 (void **)&ci, sizeof(*ci)); 712 if (error) 713 goto out; 714 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 715 716 if ((error = mfi_mapcmd(sc, cm)) != 0) { 717 device_printf(sc->mfi_dev, "Failed to get controller info\n"); 718 sc->mfi_max_io = (sc->mfi_max_sge - 1) * PAGE_SIZE / 719 MFI_SECTOR_LEN; 720 error = 0; 721 goto out; 722 } 723 724 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 725 BUS_DMASYNC_POSTREAD); 726 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 727 728 max_sectors_1 = (1 << ci->stripe_sz_ops.min) * ci->max_strips_per_io; 729 max_sectors_2 = ci->max_request_size; 730 sc->mfi_max_io = min(max_sectors_1, max_sectors_2); 731 732out: 733 if (ci) 734 free(ci, M_MFIBUF); 735 if (cm) 736 mfi_release_command(cm); 737 mtx_unlock(&sc->mfi_io_lock); 738 return (error); 739} 740 741static int 742mfi_get_log_state(struct mfi_softc *sc, struct mfi_evt_log_state **log_state) 743{ 744 struct mfi_command *cm = NULL; 745 int error; 746 747 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_GETINFO, 748 (void **)log_state, sizeof(**log_state)); 749 if (error) 750 goto out; 751 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 752 753 if ((error = mfi_mapcmd(sc, cm)) != 0) { 754 device_printf(sc->mfi_dev, "Failed to get log state\n"); 755 goto out; 756 } 757 758 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 759 BUS_DMASYNC_POSTREAD); 760 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 761 762out: 763 if (cm) 764 mfi_release_command(cm); 765 766 return (error); 767} 768 769static int 770mfi_aen_setup(struct mfi_softc *sc, uint32_t seq_start) 771{ 772 struct mfi_evt_log_state *log_state = NULL; 773 union mfi_evt class_locale; 774 int error = 0; 775 uint32_t seq; 776 777 class_locale.members.reserved = 0; 778 class_locale.members.locale = mfi_event_locale; 779 class_locale.members.class = mfi_event_class; 780 781 if (seq_start == 0) { 782 error = mfi_get_log_state(sc, &log_state); 783 if (error) { 784 if (log_state) 785 free(log_state, M_MFIBUF); 786 return (error); 787 } 788 /* The message log is a circular buffer */ 789 for (seq = log_state->shutdown_seq_num; 790 seq != log_state->newest_seq_num; seq++) { 791 mfi_get_entry(sc, seq); 792 } 793 mfi_get_entry(sc, seq); 794 } else 795 seq = seq_start; 796 mfi_aen_register(sc, seq, class_locale.word); 797 free(log_state, M_MFIBUF); 798 799 return 0; 800} 801 802static int 803mfi_wait_command(struct mfi_softc *sc, struct mfi_command *cm) 804{ 805 806 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 807 cm->cm_complete = NULL; 808 809 810 /* 811 * MegaCli can issue a DCMD of 0. In this case do nothing 812 * and return 0 to it as status 813 */ 814 if (cm->cm_frame->dcmd.opcode == 0) { 815 cm->cm_frame->header.cmd_status = MFI_STAT_OK; 816 cm->cm_error = 0; 817 return (cm->cm_error); 818 } 819 mfi_enqueue_ready(cm); 820 mfi_startio(sc); 821 if ((cm->cm_flags & MFI_CMD_COMPLETED) == 0) 822 msleep(cm, &sc->mfi_io_lock, PRIBIO, "mfiwait", 0); 823 return (cm->cm_error); 824} 825 826void 827mfi_free(struct mfi_softc *sc) 828{ 829 struct mfi_command *cm; 830 int i; 831 832 callout_drain(&sc->mfi_watchdog_callout); 833 834 if (sc->mfi_cdev != NULL) 835 destroy_dev(sc->mfi_cdev); 836 837 if (sc->mfi_total_cmds != 0) { 838 for (i = 0; i < sc->mfi_total_cmds; i++) { 839 cm = &sc->mfi_commands[i]; 840 bus_dmamap_destroy(sc->mfi_buffer_dmat, cm->cm_dmamap); 841 } 842 free(sc->mfi_commands, M_MFIBUF); 843 } 844 845 if (sc->mfi_intr) 846 bus_teardown_intr(sc->mfi_dev, sc->mfi_irq, sc->mfi_intr); 847 if (sc->mfi_irq != NULL) 848 bus_release_resource(sc->mfi_dev, SYS_RES_IRQ, sc->mfi_irq_rid, 849 sc->mfi_irq); 850 851 if (sc->mfi_sense_busaddr != 0) 852 bus_dmamap_unload(sc->mfi_sense_dmat, sc->mfi_sense_dmamap); 853 if (sc->mfi_sense != NULL) 854 bus_dmamem_free(sc->mfi_sense_dmat, sc->mfi_sense, 855 sc->mfi_sense_dmamap); 856 if (sc->mfi_sense_dmat != NULL) 857 bus_dma_tag_destroy(sc->mfi_sense_dmat); 858 859 if (sc->mfi_frames_busaddr != 0) 860 bus_dmamap_unload(sc->mfi_frames_dmat, sc->mfi_frames_dmamap); 861 if (sc->mfi_frames != NULL) 862 bus_dmamem_free(sc->mfi_frames_dmat, sc->mfi_frames, 863 sc->mfi_frames_dmamap); 864 if (sc->mfi_frames_dmat != NULL) 865 bus_dma_tag_destroy(sc->mfi_frames_dmat); 866 867 if (sc->mfi_comms_busaddr != 0) 868 bus_dmamap_unload(sc->mfi_comms_dmat, sc->mfi_comms_dmamap); 869 if (sc->mfi_comms != NULL) 870 bus_dmamem_free(sc->mfi_comms_dmat, sc->mfi_comms, 871 sc->mfi_comms_dmamap); 872 if (sc->mfi_comms_dmat != NULL) 873 bus_dma_tag_destroy(sc->mfi_comms_dmat); 874 875 if (sc->mfi_buffer_dmat != NULL) 876 bus_dma_tag_destroy(sc->mfi_buffer_dmat); 877 if (sc->mfi_parent_dmat != NULL) 878 bus_dma_tag_destroy(sc->mfi_parent_dmat); 879 880 if (mtx_initialized(&sc->mfi_io_lock)) { 881 mtx_destroy(&sc->mfi_io_lock); 882 sx_destroy(&sc->mfi_config_lock); 883 } 884 885 return; 886} 887 888static void 889mfi_startup(void *arg) 890{ 891 struct mfi_softc *sc; 892 893 sc = (struct mfi_softc *)arg; 894 895 config_intrhook_disestablish(&sc->mfi_ich); 896 897 sc->mfi_enable_intr(sc); 898 sx_xlock(&sc->mfi_config_lock); 899 mtx_lock(&sc->mfi_io_lock); 900 mfi_ldprobe(sc); 901 mtx_unlock(&sc->mfi_io_lock); 902 sx_xunlock(&sc->mfi_config_lock); 903} 904 905static void 906mfi_intr(void *arg) 907{ 908 struct mfi_softc *sc; 909 struct mfi_command *cm; 910 uint32_t pi, ci, context; 911 912 sc = (struct mfi_softc *)arg; 913 914 if (sc->mfi_check_clear_intr(sc)) 915 return; 916 917 pi = sc->mfi_comms->hw_pi; 918 ci = sc->mfi_comms->hw_ci; 919 mtx_lock(&sc->mfi_io_lock); 920 while (ci != pi) { 921 context = sc->mfi_comms->hw_reply_q[ci]; 922 if (context < sc->mfi_max_fw_cmds) { 923 cm = &sc->mfi_commands[context]; 924 mfi_remove_busy(cm); 925 cm->cm_error = 0; 926 mfi_complete(sc, cm); 927 } 928 if (++ci == (sc->mfi_max_fw_cmds + 1)) { 929 ci = 0; 930 } 931 } 932 933 sc->mfi_comms->hw_ci = ci; 934 935 /* Give defered I/O a chance to run */ 936 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 937 sc->mfi_flags &= ~MFI_FLAGS_QFRZN; 938 mfi_startio(sc); 939 mtx_unlock(&sc->mfi_io_lock); 940 941 return; 942} 943 944int 945mfi_shutdown(struct mfi_softc *sc) 946{ 947 struct mfi_dcmd_frame *dcmd; 948 struct mfi_command *cm; 949 int error; 950 951 mtx_lock(&sc->mfi_io_lock); 952 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_SHUTDOWN, NULL, 0); 953 if (error) { 954 mtx_unlock(&sc->mfi_io_lock); 955 return (error); 956 } 957 958 if (sc->mfi_aen_cm != NULL) 959 mfi_abort(sc, sc->mfi_aen_cm); 960 961 dcmd = &cm->cm_frame->dcmd; 962 dcmd->header.flags = MFI_FRAME_DIR_NONE; 963 cm->cm_flags = MFI_CMD_POLLED; 964 cm->cm_data = NULL; 965 966 if ((error = mfi_mapcmd(sc, cm)) != 0) { 967 device_printf(sc->mfi_dev, "Failed to shutdown controller\n"); 968 } 969 970 mfi_release_command(cm); 971 mtx_unlock(&sc->mfi_io_lock); 972 return (error); 973} 974 975static void 976mfi_ldprobe(struct mfi_softc *sc) 977{ 978 struct mfi_frame_header *hdr; 979 struct mfi_command *cm = NULL; 980 struct mfi_ld_list *list = NULL; 981 struct mfi_disk *ld; 982 int error, i; 983 984 sx_assert(&sc->mfi_config_lock, SA_XLOCKED); 985 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 986 987 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_LIST, 988 (void **)&list, sizeof(*list)); 989 if (error) 990 goto out; 991 992 cm->cm_flags = MFI_CMD_DATAIN; 993 if (mfi_wait_command(sc, cm) != 0) { 994 device_printf(sc->mfi_dev, "Failed to get device listing\n"); 995 goto out; 996 } 997 998 hdr = &cm->cm_frame->header; 999 if (hdr->cmd_status != MFI_STAT_OK) { 1000 device_printf(sc->mfi_dev, "MFI_DCMD_LD_GET_LIST failed %x\n", 1001 hdr->cmd_status); 1002 goto out; 1003 } 1004 1005 for (i = 0; i < list->ld_count; i++) { 1006 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1007 if (ld->ld_id == list->ld_list[i].ld.v.target_id) 1008 goto skip_add; 1009 } 1010 mfi_add_ld(sc, list->ld_list[i].ld.v.target_id); 1011 skip_add:; 1012 } 1013out: 1014 if (list) 1015 free(list, M_MFIBUF); 1016 if (cm) 1017 mfi_release_command(cm); 1018 1019 return; 1020} 1021 1022static void 1023mfi_decode_evt(struct mfi_softc *sc, struct mfi_evt_detail *detail) 1024{ 1025 switch (detail->arg_type) { 1026 case MR_EVT_ARGS_NONE: 1027 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - %s\n", 1028 detail->seq, 1029 detail->time, 1030 detail->class.members.locale, 1031 detail->class.members.class, 1032 detail->description 1033 ); 1034 break; 1035 case MR_EVT_ARGS_CDB_SENSE: 1036 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) CDB %*D" 1037 "Sense %*D\n: %s\n", 1038 detail->seq, 1039 detail->time, 1040 detail->class.members.locale, 1041 detail->class.members.class, 1042 detail->args.cdb_sense.pd.device_id, 1043 detail->args.cdb_sense.pd.enclosure_index, 1044 detail->args.cdb_sense.pd.slot_number, 1045 detail->args.cdb_sense.cdb_len, 1046 detail->args.cdb_sense.cdb, 1047 ":", 1048 detail->args.cdb_sense.sense_len, 1049 detail->args.cdb_sense.sense, 1050 ":", 1051 detail->description 1052 ); 1053 break; 1054 case MR_EVT_ARGS_LD: 1055 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1056 "event: %s\n", 1057 detail->seq, 1058 detail->time, 1059 detail->class.members.locale, 1060 detail->class.members.class, 1061 detail->args.ld.ld_index, 1062 detail->args.ld.target_id, 1063 detail->description 1064 ); 1065 break; 1066 case MR_EVT_ARGS_LD_COUNT: 1067 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1068 "count %lld: %s\n", 1069 detail->seq, 1070 detail->time, 1071 detail->class.members.locale, 1072 detail->class.members.class, 1073 detail->args.ld_count.ld.ld_index, 1074 detail->args.ld_count.ld.target_id, 1075 (long long)detail->args.ld_count.count, 1076 detail->description 1077 ); 1078 break; 1079 case MR_EVT_ARGS_LD_LBA: 1080 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1081 "lba %lld: %s\n", 1082 detail->seq, 1083 detail->time, 1084 detail->class.members.locale, 1085 detail->class.members.class, 1086 detail->args.ld_lba.ld.ld_index, 1087 detail->args.ld_lba.ld.target_id, 1088 (long long)detail->args.ld_lba.lba, 1089 detail->description 1090 ); 1091 break; 1092 case MR_EVT_ARGS_LD_OWNER: 1093 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1094 "owner changed: prior %d, new %d: %s\n", 1095 detail->seq, 1096 detail->time, 1097 detail->class.members.locale, 1098 detail->class.members.class, 1099 detail->args.ld_owner.ld.ld_index, 1100 detail->args.ld_owner.ld.target_id, 1101 detail->args.ld_owner.pre_owner, 1102 detail->args.ld_owner.new_owner, 1103 detail->description 1104 ); 1105 break; 1106 case MR_EVT_ARGS_LD_LBA_PD_LBA: 1107 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1108 "lba %lld, physical drive PD %02d(e%d/s%d) lba %lld: %s\n", 1109 detail->seq, 1110 detail->time, 1111 detail->class.members.locale, 1112 detail->class.members.class, 1113 detail->args.ld_lba_pd_lba.ld.ld_index, 1114 detail->args.ld_lba_pd_lba.ld.target_id, 1115 (long long)detail->args.ld_lba_pd_lba.ld_lba, 1116 detail->args.ld_lba_pd_lba.pd.device_id, 1117 detail->args.ld_lba_pd_lba.pd.enclosure_index, 1118 detail->args.ld_lba_pd_lba.pd.slot_number, 1119 (long long)detail->args.ld_lba_pd_lba.pd_lba, 1120 detail->description 1121 ); 1122 break; 1123 case MR_EVT_ARGS_LD_PROG: 1124 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1125 "progress %d%% in %ds: %s\n", 1126 detail->seq, 1127 detail->time, 1128 detail->class.members.locale, 1129 detail->class.members.class, 1130 detail->args.ld_prog.ld.ld_index, 1131 detail->args.ld_prog.ld.target_id, 1132 detail->args.ld_prog.prog.progress/655, 1133 detail->args.ld_prog.prog.elapsed_seconds, 1134 detail->description 1135 ); 1136 break; 1137 case MR_EVT_ARGS_LD_STATE: 1138 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1139 "state prior %d new %d: %s\n", 1140 detail->seq, 1141 detail->time, 1142 detail->class.members.locale, 1143 detail->class.members.class, 1144 detail->args.ld_state.ld.ld_index, 1145 detail->args.ld_state.ld.target_id, 1146 detail->args.ld_state.prev_state, 1147 detail->args.ld_state.new_state, 1148 detail->description 1149 ); 1150 break; 1151 case MR_EVT_ARGS_LD_STRIP: 1152 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - VD %02d/%d " 1153 "strip %lld: %s\n", 1154 detail->seq, 1155 detail->time, 1156 detail->class.members.locale, 1157 detail->class.members.class, 1158 detail->args.ld_strip.ld.ld_index, 1159 detail->args.ld_strip.ld.target_id, 1160 (long long)detail->args.ld_strip.strip, 1161 detail->description 1162 ); 1163 break; 1164 case MR_EVT_ARGS_PD: 1165 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1166 "event: %s\n", 1167 detail->seq, 1168 detail->time, 1169 detail->class.members.locale, 1170 detail->class.members.class, 1171 detail->args.pd.device_id, 1172 detail->args.pd.enclosure_index, 1173 detail->args.pd.slot_number, 1174 detail->description 1175 ); 1176 break; 1177 case MR_EVT_ARGS_PD_ERR: 1178 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1179 "err %d: %s\n", 1180 detail->seq, 1181 detail->time, 1182 detail->class.members.locale, 1183 detail->class.members.class, 1184 detail->args.pd_err.pd.device_id, 1185 detail->args.pd_err.pd.enclosure_index, 1186 detail->args.pd_err.pd.slot_number, 1187 detail->args.pd_err.err, 1188 detail->description 1189 ); 1190 break; 1191 case MR_EVT_ARGS_PD_LBA: 1192 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1193 "lba %lld: %s\n", 1194 detail->seq, 1195 detail->time, 1196 detail->class.members.locale, 1197 detail->class.members.class, 1198 detail->args.pd_lba.pd.device_id, 1199 detail->args.pd_lba.pd.enclosure_index, 1200 detail->args.pd_lba.pd.slot_number, 1201 (long long)detail->args.pd_lba.lba, 1202 detail->description 1203 ); 1204 break; 1205 case MR_EVT_ARGS_PD_LBA_LD: 1206 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1207 "lba %lld VD %02d/%d: %s\n", 1208 detail->seq, 1209 detail->time, 1210 detail->class.members.locale, 1211 detail->class.members.class, 1212 detail->args.pd_lba_ld.pd.device_id, 1213 detail->args.pd_lba_ld.pd.enclosure_index, 1214 detail->args.pd_lba_ld.pd.slot_number, 1215 (long long)detail->args.pd_lba.lba, 1216 detail->args.pd_lba_ld.ld.ld_index, 1217 detail->args.pd_lba_ld.ld.target_id, 1218 detail->description 1219 ); 1220 break; 1221 case MR_EVT_ARGS_PD_PROG: 1222 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1223 "progress %d%% seconds %ds: %s\n", 1224 detail->seq, 1225 detail->time, 1226 detail->class.members.locale, 1227 detail->class.members.class, 1228 detail->args.pd_prog.pd.device_id, 1229 detail->args.pd_prog.pd.enclosure_index, 1230 detail->args.pd_prog.pd.slot_number, 1231 detail->args.pd_prog.prog.progress/655, 1232 detail->args.pd_prog.prog.elapsed_seconds, 1233 detail->description 1234 ); 1235 break; 1236 case MR_EVT_ARGS_PD_STATE: 1237 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PD %02d(e%d/s%d) " 1238 "state prior %d new %d: %s\n", 1239 detail->seq, 1240 detail->time, 1241 detail->class.members.locale, 1242 detail->class.members.class, 1243 detail->args.pd_prog.pd.device_id, 1244 detail->args.pd_prog.pd.enclosure_index, 1245 detail->args.pd_prog.pd.slot_number, 1246 detail->args.pd_state.prev_state, 1247 detail->args.pd_state.new_state, 1248 detail->description 1249 ); 1250 break; 1251 case MR_EVT_ARGS_PCI: 1252 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - PCI 0x04%x 0x04%x " 1253 "0x04%x 0x04%x: %s\n", 1254 detail->seq, 1255 detail->time, 1256 detail->class.members.locale, 1257 detail->class.members.class, 1258 detail->args.pci.venderId, 1259 detail->args.pci.deviceId, 1260 detail->args.pci.subVenderId, 1261 detail->args.pci.subDeviceId, 1262 detail->description 1263 ); 1264 break; 1265 case MR_EVT_ARGS_RATE: 1266 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - Rebuild rate %d: %s\n", 1267 detail->seq, 1268 detail->time, 1269 detail->class.members.locale, 1270 detail->class.members.class, 1271 detail->args.rate, 1272 detail->description 1273 ); 1274 break; 1275 case MR_EVT_ARGS_TIME: 1276 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - Adapter ticks %d " 1277 "elapsed %ds: %s\n", 1278 detail->seq, 1279 detail->time, 1280 detail->class.members.locale, 1281 detail->class.members.class, 1282 detail->args.time.rtc, 1283 detail->args.time.elapsedSeconds, 1284 detail->description 1285 ); 1286 break; 1287 case MR_EVT_ARGS_ECC: 1288 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - Adapter ECC %x,%x: %s: %s\n", 1289 detail->seq, 1290 detail->time, 1291 detail->class.members.locale, 1292 detail->class.members.class, 1293 detail->args.ecc.ecar, 1294 detail->args.ecc.elog, 1295 detail->args.ecc.str, 1296 detail->description 1297 ); 1298 break; 1299 default: 1300 device_printf(sc->mfi_dev, "%d (%us/0x%04x/%d) - Type %d: %s\n", 1301 detail->seq, 1302 detail->time, 1303 detail->class.members.locale, 1304 detail->class.members.class, 1305 detail->arg_type, detail->description 1306 ); 1307 } 1308} 1309 1310static int 1311mfi_aen_register(struct mfi_softc *sc, int seq, int locale) 1312{ 1313 struct mfi_command *cm; 1314 struct mfi_dcmd_frame *dcmd; 1315 union mfi_evt current_aen, prior_aen; 1316 struct mfi_evt_detail *ed = NULL; 1317 int error = 0; 1318 1319 current_aen.word = locale; 1320 if (sc->mfi_aen_cm != NULL) { 1321 prior_aen.word = 1322 ((uint32_t *)&sc->mfi_aen_cm->cm_frame->dcmd.mbox)[1]; 1323 if (prior_aen.members.class <= current_aen.members.class && 1324 !((prior_aen.members.locale & current_aen.members.locale) 1325 ^current_aen.members.locale)) { 1326 return (0); 1327 } else { 1328 prior_aen.members.locale |= current_aen.members.locale; 1329 if (prior_aen.members.class 1330 < current_aen.members.class) 1331 current_aen.members.class = 1332 prior_aen.members.class; 1333 mfi_abort(sc, sc->mfi_aen_cm); 1334 } 1335 } 1336 1337 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_WAIT, 1338 (void **)&ed, sizeof(*ed)); 1339 if (error) { 1340 goto out; 1341 } 1342 1343 dcmd = &cm->cm_frame->dcmd; 1344 ((uint32_t *)&dcmd->mbox)[0] = seq; 1345 ((uint32_t *)&dcmd->mbox)[1] = locale; 1346 cm->cm_flags = MFI_CMD_DATAIN; 1347 cm->cm_complete = mfi_aen_complete; 1348 1349 sc->mfi_aen_cm = cm; 1350 1351 mfi_enqueue_ready(cm); 1352 mfi_startio(sc); 1353 1354out: 1355 return (error); 1356} 1357 1358static void 1359mfi_aen_complete(struct mfi_command *cm) 1360{ 1361 struct mfi_frame_header *hdr; 1362 struct mfi_softc *sc; 1363 struct mfi_evt_detail *detail; 1364 struct mfi_aen *mfi_aen_entry, *tmp; 1365 int seq = 0, aborted = 0; 1366 1367 sc = cm->cm_sc; 1368 hdr = &cm->cm_frame->header; 1369 1370 if (sc->mfi_aen_cm == NULL) 1371 return; 1372 1373 if (sc->mfi_aen_cm->cm_aen_abort || hdr->cmd_status == 0xff) { 1374 sc->mfi_aen_cm->cm_aen_abort = 0; 1375 aborted = 1; 1376 } else { 1377 sc->mfi_aen_triggered = 1; 1378 if (sc->mfi_poll_waiting) { 1379 sc->mfi_poll_waiting = 0; 1380 selwakeup(&sc->mfi_select); 1381 } 1382 detail = cm->cm_data; 1383 /* 1384 * XXX If this function is too expensive or is recursive, then 1385 * events should be put onto a queue and processed later. 1386 */ 1387 mtx_unlock(&sc->mfi_io_lock); 1388 mfi_decode_evt(sc, detail); 1389 mtx_lock(&sc->mfi_io_lock); 1390 seq = detail->seq + 1; 1391 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1392 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1393 aen_link); 1394 PROC_LOCK(mfi_aen_entry->p); 1395 psignal(mfi_aen_entry->p, SIGIO); 1396 PROC_UNLOCK(mfi_aen_entry->p); 1397 free(mfi_aen_entry, M_MFIBUF); 1398 } 1399 } 1400 1401 free(cm->cm_data, M_MFIBUF); 1402 sc->mfi_aen_cm = NULL; 1403 wakeup(&sc->mfi_aen_cm); 1404 mfi_release_command(cm); 1405 1406 /* set it up again so the driver can catch more events */ 1407 if (!aborted) { 1408 mfi_aen_setup(sc, seq); 1409 } 1410} 1411 1412/* Only do one event for now so we can easily iterate through them */ 1413#define MAX_EVENTS 1 1414static int 1415mfi_get_entry(struct mfi_softc *sc, int seq) 1416{ 1417 struct mfi_command *cm; 1418 struct mfi_dcmd_frame *dcmd; 1419 struct mfi_evt_list *el; 1420 int error; 1421 int i; 1422 int size; 1423 1424 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1425 return (EBUSY); 1426 } 1427 1428 size = sizeof(struct mfi_evt_list) + sizeof(struct mfi_evt_detail) 1429 * (MAX_EVENTS - 1); 1430 el = malloc(size, M_MFIBUF, M_NOWAIT | M_ZERO); 1431 if (el == NULL) { 1432 mfi_release_command(cm); 1433 return (ENOMEM); 1434 } 1435 1436 dcmd = &cm->cm_frame->dcmd; 1437 bzero(dcmd->mbox, MFI_MBOX_SIZE); 1438 dcmd->header.cmd = MFI_CMD_DCMD; 1439 dcmd->header.timeout = 0; 1440 dcmd->header.data_len = size; 1441 dcmd->opcode = MFI_DCMD_CTRL_EVENT_GET; 1442 ((uint32_t *)&dcmd->mbox)[0] = seq; 1443 ((uint32_t *)&dcmd->mbox)[1] = MFI_EVT_LOCALE_ALL; 1444 cm->cm_sg = &dcmd->sgl; 1445 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 1446 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 1447 cm->cm_data = el; 1448 cm->cm_len = size; 1449 1450 if ((error = mfi_mapcmd(sc, cm)) != 0) { 1451 device_printf(sc->mfi_dev, "Failed to get controller entry\n"); 1452 sc->mfi_max_io = (sc->mfi_max_sge - 1) * PAGE_SIZE / 1453 MFI_SECTOR_LEN; 1454 free(el, M_MFIBUF); 1455 mfi_release_command(cm); 1456 return (0); 1457 } 1458 1459 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1460 BUS_DMASYNC_POSTREAD); 1461 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1462 1463 if (dcmd->header.cmd_status != MFI_STAT_NOT_FOUND) { 1464 for (i = 0; i < el->count; i++) { 1465 if (seq + i == el->event[i].seq) 1466 mfi_decode_evt(sc, &el->event[i]); 1467 } 1468 } 1469 1470 free(cm->cm_data, M_MFIBUF); 1471 mfi_release_command(cm); 1472 return (0); 1473} 1474 1475static int 1476mfi_add_ld(struct mfi_softc *sc, int id) 1477{ 1478 struct mfi_command *cm; 1479 struct mfi_dcmd_frame *dcmd = NULL; 1480 struct mfi_ld_info *ld_info = NULL; 1481 int error; 1482 1483 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1484 1485 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_INFO, 1486 (void **)&ld_info, sizeof(*ld_info)); 1487 if (error) { 1488 device_printf(sc->mfi_dev, 1489 "Failed to allocate for MFI_DCMD_LD_GET_INFO %d\n", error); 1490 if (ld_info) 1491 free(ld_info, M_MFIBUF); 1492 return (error); 1493 } 1494 cm->cm_flags = MFI_CMD_DATAIN; 1495 dcmd = &cm->cm_frame->dcmd; 1496 dcmd->mbox[0] = id; 1497 if (mfi_wait_command(sc, cm) != 0) { 1498 device_printf(sc->mfi_dev, 1499 "Failed to get logical drive: %d\n", id); 1500 free(ld_info, M_MFIBUF); 1501 return (0); 1502 } 1503 1504 mfi_add_ld_complete(cm); 1505 return (0); 1506} 1507 1508static void 1509mfi_add_ld_complete(struct mfi_command *cm) 1510{ 1511 struct mfi_frame_header *hdr; 1512 struct mfi_ld_info *ld_info; 1513 struct mfi_softc *sc; 1514 device_t child; 1515 1516 sc = cm->cm_sc; 1517 hdr = &cm->cm_frame->header; 1518 ld_info = cm->cm_private; 1519 1520 if (hdr->cmd_status != MFI_STAT_OK) { 1521 free(ld_info, M_MFIBUF); 1522 mfi_release_command(cm); 1523 return; 1524 } 1525 mfi_release_command(cm); 1526 1527 mtx_unlock(&sc->mfi_io_lock); 1528 mtx_lock(&Giant); 1529 if ((child = device_add_child(sc->mfi_dev, "mfid", -1)) == NULL) { 1530 device_printf(sc->mfi_dev, "Failed to add logical disk\n"); 1531 free(ld_info, M_MFIBUF); 1532 mtx_unlock(&Giant); 1533 mtx_lock(&sc->mfi_io_lock); 1534 return; 1535 } 1536 1537 device_set_ivars(child, ld_info); 1538 device_set_desc(child, "MFI Logical Disk"); 1539 bus_generic_attach(sc->mfi_dev); 1540 mtx_unlock(&Giant); 1541 mtx_lock(&sc->mfi_io_lock); 1542} 1543 1544static struct mfi_command * 1545mfi_bio_command(struct mfi_softc *sc) 1546{ 1547 struct mfi_io_frame *io; 1548 struct mfi_command *cm; 1549 struct bio *bio; 1550 int flags, blkcount; 1551 1552 if ((cm = mfi_dequeue_free(sc)) == NULL) 1553 return (NULL); 1554 1555 if ((bio = mfi_dequeue_bio(sc)) == NULL) { 1556 mfi_release_command(cm); 1557 return (NULL); 1558 } 1559 1560 io = &cm->cm_frame->io; 1561 switch (bio->bio_cmd & 0x03) { 1562 case BIO_READ: 1563 io->header.cmd = MFI_CMD_LD_READ; 1564 flags = MFI_CMD_DATAIN; 1565 break; 1566 case BIO_WRITE: 1567 io->header.cmd = MFI_CMD_LD_WRITE; 1568 flags = MFI_CMD_DATAOUT; 1569 break; 1570 default: 1571 panic("Invalid bio command"); 1572 } 1573 1574 /* Cheat with the sector length to avoid a non-constant division */ 1575 blkcount = (bio->bio_bcount + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1576 io->header.target_id = (uintptr_t)bio->bio_driver1; 1577 io->header.timeout = 0; 1578 io->header.flags = 0; 1579 io->header.sense_len = MFI_SENSE_LEN; 1580 io->header.data_len = blkcount; 1581 io->sense_addr_lo = cm->cm_sense_busaddr; 1582 io->sense_addr_hi = 0; 1583 io->lba_hi = (bio->bio_pblkno & 0xffffffff00000000) >> 32; 1584 io->lba_lo = bio->bio_pblkno & 0xffffffff; 1585 cm->cm_complete = mfi_bio_complete; 1586 cm->cm_private = bio; 1587 cm->cm_data = bio->bio_data; 1588 cm->cm_len = bio->bio_bcount; 1589 cm->cm_sg = &io->sgl; 1590 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1591 cm->cm_flags = flags; 1592 return (cm); 1593} 1594 1595static void 1596mfi_bio_complete(struct mfi_command *cm) 1597{ 1598 struct bio *bio; 1599 struct mfi_frame_header *hdr; 1600 struct mfi_softc *sc; 1601 1602 bio = cm->cm_private; 1603 hdr = &cm->cm_frame->header; 1604 sc = cm->cm_sc; 1605 1606 if ((hdr->cmd_status != 0) || (hdr->scsi_status != 0)) { 1607 bio->bio_flags |= BIO_ERROR; 1608 bio->bio_error = EIO; 1609 device_printf(sc->mfi_dev, "I/O error, status= %d " 1610 "scsi_status= %d\n", hdr->cmd_status, hdr->scsi_status); 1611 mfi_print_sense(cm->cm_sc, cm->cm_sense); 1612 } 1613 1614 mfi_release_command(cm); 1615 mfi_disk_complete(bio); 1616} 1617 1618void 1619mfi_startio(struct mfi_softc *sc) 1620{ 1621 struct mfi_command *cm; 1622 struct ccb_hdr *ccbh; 1623 1624 for (;;) { 1625 /* Don't bother if we're short on resources */ 1626 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 1627 break; 1628 1629 /* Try a command that has already been prepared */ 1630 cm = mfi_dequeue_ready(sc); 1631 1632 if (cm == NULL) { 1633 if ((ccbh = TAILQ_FIRST(&sc->mfi_cam_ccbq)) != NULL) 1634 cm = sc->mfi_cam_start(ccbh); 1635 } 1636 1637 /* Nope, so look for work on the bioq */ 1638 if (cm == NULL) 1639 cm = mfi_bio_command(sc); 1640 1641 /* No work available, so exit */ 1642 if (cm == NULL) 1643 break; 1644 1645 /* Send the command to the controller */ 1646 if (mfi_mapcmd(sc, cm) != 0) { 1647 mfi_requeue_ready(cm); 1648 break; 1649 } 1650 } 1651} 1652 1653static int 1654mfi_mapcmd(struct mfi_softc *sc, struct mfi_command *cm) 1655{ 1656 int error, polled; 1657 1658 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1659 1660 if (cm->cm_data != NULL) { 1661 polled = (cm->cm_flags & MFI_CMD_POLLED) ? BUS_DMA_NOWAIT : 0; 1662 error = bus_dmamap_load(sc->mfi_buffer_dmat, cm->cm_dmamap, 1663 cm->cm_data, cm->cm_len, mfi_data_cb, cm, polled); 1664 if (error == EINPROGRESS) { 1665 sc->mfi_flags |= MFI_FLAGS_QFRZN; 1666 return (0); 1667 } 1668 } else { 1669 error = mfi_send_frame(sc, cm); 1670 } 1671 1672 return (error); 1673} 1674 1675static void 1676mfi_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1677{ 1678 struct mfi_frame_header *hdr; 1679 struct mfi_command *cm; 1680 union mfi_sgl *sgl; 1681 struct mfi_softc *sc; 1682 int i, dir; 1683 1684 cm = (struct mfi_command *)arg; 1685 sc = cm->cm_sc; 1686 hdr = &cm->cm_frame->header; 1687 sgl = cm->cm_sg; 1688 1689 if (error) { 1690 printf("error %d in callback\n", error); 1691 cm->cm_error = error; 1692 mfi_complete(sc, cm); 1693 return; 1694 } 1695 1696 if ((sc->mfi_flags & MFI_FLAGS_SG64) == 0) { 1697 for (i = 0; i < nsegs; i++) { 1698 sgl->sg32[i].addr = segs[i].ds_addr; 1699 sgl->sg32[i].len = segs[i].ds_len; 1700 } 1701 } else { 1702 for (i = 0; i < nsegs; i++) { 1703 sgl->sg64[i].addr = segs[i].ds_addr; 1704 sgl->sg64[i].len = segs[i].ds_len; 1705 } 1706 hdr->flags |= MFI_FRAME_SGL64; 1707 } 1708 hdr->sg_count = nsegs; 1709 1710 dir = 0; 1711 if (cm->cm_flags & MFI_CMD_DATAIN) { 1712 dir |= BUS_DMASYNC_PREREAD; 1713 hdr->flags |= MFI_FRAME_DIR_READ; 1714 } 1715 if (cm->cm_flags & MFI_CMD_DATAOUT) { 1716 dir |= BUS_DMASYNC_PREWRITE; 1717 hdr->flags |= MFI_FRAME_DIR_WRITE; 1718 } 1719 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1720 cm->cm_flags |= MFI_CMD_MAPPED; 1721 1722 /* 1723 * Instead of calculating the total number of frames in the 1724 * compound frame, it's already assumed that there will be at 1725 * least 1 frame, so don't compensate for the modulo of the 1726 * following division. 1727 */ 1728 cm->cm_total_frame_size += (sc->mfi_sge_size * nsegs); 1729 cm->cm_extra_frames = (cm->cm_total_frame_size - 1) / MFI_FRAME_SIZE; 1730 1731 mfi_send_frame(sc, cm); 1732 1733 return; 1734} 1735 1736static int 1737mfi_send_frame(struct mfi_softc *sc, struct mfi_command *cm) 1738{ 1739 struct mfi_frame_header *hdr; 1740 int tm = MFI_POLL_TIMEOUT_SECS * 1000; 1741 1742 hdr = &cm->cm_frame->header; 1743 1744 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) { 1745 cm->cm_timestamp = time_uptime; 1746 mfi_enqueue_busy(cm); 1747 } else { 1748 hdr->cmd_status = 0xff; 1749 hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; 1750 } 1751 1752 /* 1753 * The bus address of the command is aligned on a 64 byte boundary, 1754 * leaving the least 6 bits as zero. For whatever reason, the 1755 * hardware wants the address shifted right by three, leaving just 1756 * 3 zero bits. These three bits are then used as a prefetching 1757 * hint for the hardware to predict how many frames need to be 1758 * fetched across the bus. If a command has more than 8 frames 1759 * then the 3 bits are set to 0x7 and the firmware uses other 1760 * information in the command to determine the total amount to fetch. 1761 * However, FreeBSD doesn't support I/O larger than 128K, so 8 frames 1762 * is enough for both 32bit and 64bit systems. 1763 */ 1764 if (cm->cm_extra_frames > 7) 1765 cm->cm_extra_frames = 7; 1766 1767 sc->mfi_issue_cmd(sc,cm->cm_frame_busaddr,cm->cm_extra_frames); 1768 1769 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) 1770 return (0); 1771 1772 /* This is a polled command, so busy-wait for it to complete. */ 1773 while (hdr->cmd_status == 0xff) { 1774 DELAY(1000); 1775 tm -= 1; 1776 if (tm <= 0) 1777 break; 1778 } 1779 1780 if (hdr->cmd_status == 0xff) { 1781 device_printf(sc->mfi_dev, "Frame %p timed out " 1782 "command 0x%X\n", hdr, cm->cm_frame->dcmd.opcode); 1783 return (ETIMEDOUT); 1784 } 1785 1786 return (0); 1787} 1788 1789static void 1790mfi_complete(struct mfi_softc *sc, struct mfi_command *cm) 1791{ 1792 int dir; 1793 1794 if ((cm->cm_flags & MFI_CMD_MAPPED) != 0) { 1795 dir = 0; 1796 if (cm->cm_flags & MFI_CMD_DATAIN) 1797 dir |= BUS_DMASYNC_POSTREAD; 1798 if (cm->cm_flags & MFI_CMD_DATAOUT) 1799 dir |= BUS_DMASYNC_POSTWRITE; 1800 1801 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1802 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1803 cm->cm_flags &= ~MFI_CMD_MAPPED; 1804 } 1805 1806 cm->cm_flags |= MFI_CMD_COMPLETED; 1807 1808 if (cm->cm_complete != NULL) 1809 cm->cm_complete(cm); 1810 else 1811 wakeup(cm); 1812} 1813 1814static int 1815mfi_abort(struct mfi_softc *sc, struct mfi_command *cm_abort) 1816{ 1817 struct mfi_command *cm; 1818 struct mfi_abort_frame *abort; 1819 int i = 0; 1820 1821 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1822 1823 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1824 return (EBUSY); 1825 } 1826 1827 abort = &cm->cm_frame->abort; 1828 abort->header.cmd = MFI_CMD_ABORT; 1829 abort->header.flags = 0; 1830 abort->abort_context = cm_abort->cm_frame->header.context; 1831 abort->abort_mfi_addr_lo = cm_abort->cm_frame_busaddr; 1832 abort->abort_mfi_addr_hi = 0; 1833 cm->cm_data = NULL; 1834 cm->cm_flags = MFI_CMD_POLLED; 1835 1836 sc->mfi_aen_cm->cm_aen_abort = 1; 1837 mfi_mapcmd(sc, cm); 1838 mfi_release_command(cm); 1839 1840 while (i < 5 && sc->mfi_aen_cm != NULL) { 1841 msleep(&sc->mfi_aen_cm, &sc->mfi_io_lock, 0, "mfiabort", 5 * hz); 1842 i++; 1843 } 1844 1845 return (0); 1846} 1847 1848int 1849mfi_dump_blocks(struct mfi_softc *sc, int id, uint64_t lba, void *virt, int len) 1850{ 1851 struct mfi_command *cm; 1852 struct mfi_io_frame *io; 1853 int error; 1854 1855 if ((cm = mfi_dequeue_free(sc)) == NULL) 1856 return (EBUSY); 1857 1858 io = &cm->cm_frame->io; 1859 io->header.cmd = MFI_CMD_LD_WRITE; 1860 io->header.target_id = id; 1861 io->header.timeout = 0; 1862 io->header.flags = 0; 1863 io->header.sense_len = MFI_SENSE_LEN; 1864 io->header.data_len = (len + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1865 io->sense_addr_lo = cm->cm_sense_busaddr; 1866 io->sense_addr_hi = 0; 1867 io->lba_hi = (lba & 0xffffffff00000000) >> 32; 1868 io->lba_lo = lba & 0xffffffff; 1869 cm->cm_data = virt; 1870 cm->cm_len = len; 1871 cm->cm_sg = &io->sgl; 1872 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1873 cm->cm_flags = MFI_CMD_POLLED | MFI_CMD_DATAOUT; 1874 1875 error = mfi_mapcmd(sc, cm); 1876 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1877 BUS_DMASYNC_POSTWRITE); 1878 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1879 mfi_release_command(cm); 1880 1881 return (error); 1882} 1883 1884static int 1885mfi_open(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1886{ 1887 struct mfi_softc *sc; 1888 int error; 1889 1890 sc = dev->si_drv1; 1891 1892 mtx_lock(&sc->mfi_io_lock); 1893 if (sc->mfi_detaching) 1894 error = ENXIO; 1895 else { 1896 sc->mfi_flags |= MFI_FLAGS_OPEN; 1897 error = 0; 1898 } 1899 mtx_unlock(&sc->mfi_io_lock); 1900 1901 return (error); 1902} 1903 1904static int 1905mfi_close(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1906{ 1907 struct mfi_softc *sc; 1908 struct mfi_aen *mfi_aen_entry, *tmp; 1909 1910 sc = dev->si_drv1; 1911 1912 mtx_lock(&sc->mfi_io_lock); 1913 sc->mfi_flags &= ~MFI_FLAGS_OPEN; 1914 1915 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1916 if (mfi_aen_entry->p == curproc) { 1917 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1918 aen_link); 1919 free(mfi_aen_entry, M_MFIBUF); 1920 } 1921 } 1922 mtx_unlock(&sc->mfi_io_lock); 1923 return (0); 1924} 1925 1926static int 1927mfi_config_lock(struct mfi_softc *sc, uint32_t opcode) 1928{ 1929 1930 switch (opcode) { 1931 case MFI_DCMD_LD_DELETE: 1932 case MFI_DCMD_CFG_ADD: 1933 case MFI_DCMD_CFG_CLEAR: 1934 sx_xlock(&sc->mfi_config_lock); 1935 return (1); 1936 default: 1937 return (0); 1938 } 1939} 1940 1941static void 1942mfi_config_unlock(struct mfi_softc *sc, int locked) 1943{ 1944 1945 if (locked) 1946 sx_xunlock(&sc->mfi_config_lock); 1947} 1948 1949/* Perform pre-issue checks on commands from userland and possibly veto them. */ 1950static int 1951mfi_check_command_pre(struct mfi_softc *sc, struct mfi_command *cm) 1952{ 1953 struct mfi_disk *ld, *ld2; 1954 int error; 1955 1956 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1957 error = 0; 1958 switch (cm->cm_frame->dcmd.opcode) { 1959 case MFI_DCMD_LD_DELETE: 1960 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1961 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1962 break; 1963 } 1964 if (ld == NULL) 1965 error = ENOENT; 1966 else 1967 error = mfi_disk_disable(ld); 1968 break; 1969 case MFI_DCMD_CFG_CLEAR: 1970 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1971 error = mfi_disk_disable(ld); 1972 if (error) 1973 break; 1974 } 1975 if (error) { 1976 TAILQ_FOREACH(ld2, &sc->mfi_ld_tqh, ld_link) { 1977 if (ld2 == ld) 1978 break; 1979 mfi_disk_enable(ld2); 1980 } 1981 } 1982 break; 1983 default: 1984 break; 1985 } 1986 return (error); 1987} 1988 1989/* Perform post-issue checks on commands from userland. */ 1990static void 1991mfi_check_command_post(struct mfi_softc *sc, struct mfi_command *cm) 1992{ 1993 struct mfi_disk *ld, *ldn; 1994 1995 switch (cm->cm_frame->dcmd.opcode) { 1996 case MFI_DCMD_LD_DELETE: 1997 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1998 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1999 break; 2000 } 2001 KASSERT(ld != NULL, ("volume dissappeared")); 2002 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 2003 mtx_unlock(&sc->mfi_io_lock); 2004 mtx_lock(&Giant); 2005 device_delete_child(sc->mfi_dev, ld->ld_dev); 2006 mtx_unlock(&Giant); 2007 mtx_lock(&sc->mfi_io_lock); 2008 } else 2009 mfi_disk_enable(ld); 2010 break; 2011 case MFI_DCMD_CFG_CLEAR: 2012 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 2013 mtx_unlock(&sc->mfi_io_lock); 2014 mtx_lock(&Giant); 2015 TAILQ_FOREACH_SAFE(ld, &sc->mfi_ld_tqh, ld_link, ldn) { 2016 device_delete_child(sc->mfi_dev, ld->ld_dev); 2017 } 2018 mtx_unlock(&Giant); 2019 mtx_lock(&sc->mfi_io_lock); 2020 } else { 2021 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) 2022 mfi_disk_enable(ld); 2023 } 2024 break; 2025 case MFI_DCMD_CFG_ADD: 2026 mfi_ldprobe(sc); 2027 break; 2028 } 2029} 2030 2031static int 2032mfi_user_command(struct mfi_softc *sc, struct mfi_ioc_passthru *ioc) 2033{ 2034 struct mfi_command *cm; 2035 struct mfi_dcmd_frame *dcmd; 2036 void *ioc_buf = NULL; 2037 uint32_t context; 2038 int error = 0, locked; 2039 2040 2041 if (ioc->buf_size > 0) { 2042 ioc_buf = malloc(ioc->buf_size, M_MFIBUF, M_WAITOK); 2043 if (ioc_buf == NULL) { 2044 return (ENOMEM); 2045 } 2046 error = copyin(ioc->buf, ioc_buf, ioc->buf_size); 2047 if (error) { 2048 device_printf(sc->mfi_dev, "failed to copyin\n"); 2049 free(ioc_buf, M_MFIBUF); 2050 return (error); 2051 } 2052 } 2053 2054 locked = mfi_config_lock(sc, ioc->ioc_frame.opcode); 2055 2056 mtx_lock(&sc->mfi_io_lock); 2057 while ((cm = mfi_dequeue_free(sc)) == NULL) 2058 msleep(mfi_user_command, &sc->mfi_io_lock, 0, "mfiioc", hz); 2059 2060 /* Save context for later */ 2061 context = cm->cm_frame->header.context; 2062 2063 dcmd = &cm->cm_frame->dcmd; 2064 bcopy(&ioc->ioc_frame, dcmd, sizeof(struct mfi_dcmd_frame)); 2065 2066 cm->cm_sg = &dcmd->sgl; 2067 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 2068 cm->cm_data = ioc_buf; 2069 cm->cm_len = ioc->buf_size; 2070 2071 /* restore context */ 2072 cm->cm_frame->header.context = context; 2073 2074 /* Cheat since we don't know if we're writing or reading */ 2075 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 2076 2077 error = mfi_check_command_pre(sc, cm); 2078 if (error) 2079 goto out; 2080 2081 error = mfi_wait_command(sc, cm); 2082 if (error) { 2083 device_printf(sc->mfi_dev, "ioctl failed %d\n", error); 2084 goto out; 2085 } 2086 bcopy(dcmd, &ioc->ioc_frame, sizeof(struct mfi_dcmd_frame)); 2087 mfi_check_command_post(sc, cm); 2088out: 2089 mfi_release_command(cm); 2090 mtx_unlock(&sc->mfi_io_lock); 2091 mfi_config_unlock(sc, locked); 2092 if (ioc->buf_size > 0) 2093 error = copyout(ioc_buf, ioc->buf, ioc->buf_size); 2094 if (ioc_buf) 2095 free(ioc_buf, M_MFIBUF); 2096 return (error); 2097} 2098 2099#ifdef __amd64__ 2100#define PTRIN(p) ((void *)(uintptr_t)(p)) 2101#else 2102#define PTRIN(p) (p) 2103#endif 2104 2105static int 2106mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2107{ 2108 struct mfi_softc *sc; 2109 union mfi_statrequest *ms; 2110 struct mfi_ioc_packet *ioc; 2111 struct mfi_ioc_aen *aen; 2112 struct mfi_command *cm = NULL; 2113 uint32_t context; 2114 uint8_t *sense_ptr; 2115 uint8_t *data = NULL, *temp; 2116 int i; 2117 struct mfi_ioc_passthru *iop = (struct mfi_ioc_passthru *)arg; 2118#ifdef __amd64__ 2119 struct mfi_ioc_passthru32 *iop32 = (struct mfi_ioc_passthru32 *)arg; 2120 struct mfi_ioc_passthru iop_swab; 2121#endif 2122 int error, locked; 2123 2124 sc = dev->si_drv1; 2125 error = 0; 2126 2127 switch (cmd) { 2128 case MFIIO_STATS: 2129 ms = (union mfi_statrequest *)arg; 2130 switch (ms->ms_item) { 2131 case MFIQ_FREE: 2132 case MFIQ_BIO: 2133 case MFIQ_READY: 2134 case MFIQ_BUSY: 2135 bcopy(&sc->mfi_qstat[ms->ms_item], &ms->ms_qstat, 2136 sizeof(struct mfi_qstat)); 2137 break; 2138 default: 2139 error = ENOIOCTL; 2140 break; 2141 } 2142 break; 2143 case MFIIO_QUERY_DISK: 2144 { 2145 struct mfi_query_disk *qd; 2146 struct mfi_disk *ld; 2147 2148 qd = (struct mfi_query_disk *)arg; 2149 mtx_lock(&sc->mfi_io_lock); 2150 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 2151 if (ld->ld_id == qd->array_id) 2152 break; 2153 } 2154 if (ld == NULL) { 2155 qd->present = 0; 2156 mtx_unlock(&sc->mfi_io_lock); 2157 return (0); 2158 } 2159 qd->present = 1; 2160 if (ld->ld_flags & MFI_DISK_FLAGS_OPEN) 2161 qd->open = 1; 2162 bzero(qd->devname, SPECNAMELEN + 1); 2163 snprintf(qd->devname, SPECNAMELEN, "mfid%d", ld->ld_unit); 2164 mtx_unlock(&sc->mfi_io_lock); 2165 break; 2166 } 2167 case MFI_CMD: 2168 { 2169 devclass_t devclass; 2170 ioc = (struct mfi_ioc_packet *)arg; 2171 int adapter; 2172 2173 adapter = ioc->mfi_adapter_no; 2174 if (device_get_unit(sc->mfi_dev) == 0 && adapter != 0) { 2175 devclass = devclass_find("mfi"); 2176 sc = devclass_get_softc(devclass, adapter); 2177 } 2178 mtx_lock(&sc->mfi_io_lock); 2179 if ((cm = mfi_dequeue_free(sc)) == NULL) { 2180 mtx_unlock(&sc->mfi_io_lock); 2181 return (EBUSY); 2182 } 2183 mtx_unlock(&sc->mfi_io_lock); 2184 locked = 0; 2185 2186 /* 2187 * save off original context since copying from user 2188 * will clobber some data 2189 */ 2190 context = cm->cm_frame->header.context; 2191 2192 bcopy(ioc->mfi_frame.raw, cm->cm_frame, 2193 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2194 cm->cm_total_frame_size = (sizeof(union mfi_sgl) * ioc->mfi_sge_count) + ioc->mfi_sgl_off; 2195 if (ioc->mfi_sge_count) { 2196 cm->cm_sg = 2197 (union mfi_sgl *)&cm->cm_frame->bytes[ioc->mfi_sgl_off]; 2198 } 2199 cm->cm_flags = 0; 2200 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2201 cm->cm_flags |= MFI_CMD_DATAIN; 2202 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2203 cm->cm_flags |= MFI_CMD_DATAOUT; 2204 /* Legacy app shim */ 2205 if (cm->cm_flags == 0) 2206 cm->cm_flags |= MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 2207 cm->cm_len = cm->cm_frame->header.data_len; 2208 if (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT)) { 2209 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2210 M_WAITOK | M_ZERO); 2211 if (cm->cm_data == NULL) { 2212 device_printf(sc->mfi_dev, "Malloc failed\n"); 2213 goto out; 2214 } 2215 } else { 2216 cm->cm_data = 0; 2217 } 2218 2219 /* restore header context */ 2220 cm->cm_frame->header.context = context; 2221 2222 temp = data; 2223 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2224 for (i = 0; i < ioc->mfi_sge_count; i++) { 2225 error = copyin(ioc->mfi_sgl[i].iov_base, 2226 temp, 2227 ioc->mfi_sgl[i].iov_len); 2228 if (error != 0) { 2229 device_printf(sc->mfi_dev, 2230 "Copy in failed\n"); 2231 goto out; 2232 } 2233 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2234 } 2235 } 2236 2237 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2238 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2239 2240 mtx_lock(&sc->mfi_io_lock); 2241 error = mfi_check_command_pre(sc, cm); 2242 if (error) { 2243 mtx_unlock(&sc->mfi_io_lock); 2244 goto out; 2245 } 2246 2247 if ((error = mfi_wait_command(sc, cm)) != 0) { 2248 device_printf(sc->mfi_dev, 2249 "Controller polled failed\n"); 2250 mtx_unlock(&sc->mfi_io_lock); 2251 goto out; 2252 } 2253 2254 mfi_check_command_post(sc, cm); 2255 mtx_unlock(&sc->mfi_io_lock); 2256 2257 temp = data; 2258 if (cm->cm_flags & MFI_CMD_DATAIN) { 2259 for (i = 0; i < ioc->mfi_sge_count; i++) { 2260 error = copyout(temp, 2261 ioc->mfi_sgl[i].iov_base, 2262 ioc->mfi_sgl[i].iov_len); 2263 if (error != 0) { 2264 device_printf(sc->mfi_dev, 2265 "Copy out failed\n"); 2266 goto out; 2267 } 2268 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2269 } 2270 } 2271 2272 if (ioc->mfi_sense_len) { 2273 /* copy out sense */ 2274 sense_ptr = &((struct mfi_ioc_packet*)arg) 2275 ->mfi_frame.raw[0]; 2276 error = copyout(cm->cm_sense, sense_ptr, 2277 ioc->mfi_sense_len); 2278 if (error != 0) { 2279 device_printf(sc->mfi_dev, 2280 "Copy out failed\n"); 2281 goto out; 2282 } 2283 } 2284 2285 ioc->mfi_frame.hdr.cmd_status = cm->cm_frame->header.cmd_status; 2286out: 2287 mfi_config_unlock(sc, locked); 2288 if (data) 2289 free(data, M_MFIBUF); 2290 if (cm) { 2291 mtx_lock(&sc->mfi_io_lock); 2292 mfi_release_command(cm); 2293 mtx_unlock(&sc->mfi_io_lock); 2294 } 2295 2296 break; 2297 } 2298 case MFI_SET_AEN: 2299 aen = (struct mfi_ioc_aen *)arg; 2300 error = mfi_aen_register(sc, aen->aen_seq_num, 2301 aen->aen_class_locale); 2302 2303 break; 2304 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2305 { 2306 devclass_t devclass; 2307 struct mfi_linux_ioc_packet l_ioc; 2308 int adapter; 2309 2310 devclass = devclass_find("mfi"); 2311 if (devclass == NULL) 2312 return (ENOENT); 2313 2314 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2315 if (error) 2316 return (error); 2317 adapter = l_ioc.lioc_adapter_no; 2318 sc = devclass_get_softc(devclass, adapter); 2319 if (sc == NULL) 2320 return (ENOENT); 2321 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2322 cmd, arg, flag, td)); 2323 break; 2324 } 2325 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2326 { 2327 devclass_t devclass; 2328 struct mfi_linux_ioc_aen l_aen; 2329 int adapter; 2330 2331 devclass = devclass_find("mfi"); 2332 if (devclass == NULL) 2333 return (ENOENT); 2334 2335 error = copyin(arg, &l_aen, sizeof(l_aen)); 2336 if (error) 2337 return (error); 2338 adapter = l_aen.laen_adapter_no; 2339 sc = devclass_get_softc(devclass, adapter); 2340 if (sc == NULL) 2341 return (ENOENT); 2342 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2343 cmd, arg, flag, td)); 2344 break; 2345 } 2346#ifdef __amd64__ 2347 case MFIIO_PASSTHRU32: 2348 iop_swab.ioc_frame = iop32->ioc_frame; 2349 iop_swab.buf_size = iop32->buf_size; 2350 iop_swab.buf = PTRIN(iop32->buf); 2351 iop = &iop_swab; 2352 /* FALLTHROUGH */ 2353#endif 2354 case MFIIO_PASSTHRU: 2355 error = mfi_user_command(sc, iop); 2356#ifdef __amd64__ 2357 if (cmd == MFIIO_PASSTHRU32) 2358 iop32->ioc_frame = iop_swab.ioc_frame; 2359#endif 2360 break; 2361 default: 2362 device_printf(sc->mfi_dev, "IOCTL 0x%lx not handled\n", cmd); 2363 error = ENOENT; 2364 break; 2365 } 2366 2367 return (error); 2368} 2369 2370static int 2371mfi_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2372{ 2373 struct mfi_softc *sc; 2374 struct mfi_linux_ioc_packet l_ioc; 2375 struct mfi_linux_ioc_aen l_aen; 2376 struct mfi_command *cm = NULL; 2377 struct mfi_aen *mfi_aen_entry; 2378 uint8_t *sense_ptr; 2379 uint32_t context; 2380 uint8_t *data = NULL, *temp; 2381 int i; 2382 int error, locked; 2383 2384 sc = dev->si_drv1; 2385 error = 0; 2386 switch (cmd) { 2387 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2388 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2389 if (error != 0) 2390 return (error); 2391 2392 if (l_ioc.lioc_sge_count > MAX_LINUX_IOCTL_SGE) { 2393 return (EINVAL); 2394 } 2395 2396 mtx_lock(&sc->mfi_io_lock); 2397 if ((cm = mfi_dequeue_free(sc)) == NULL) { 2398 mtx_unlock(&sc->mfi_io_lock); 2399 return (EBUSY); 2400 } 2401 mtx_unlock(&sc->mfi_io_lock); 2402 locked = 0; 2403 2404 /* 2405 * save off original context since copying from user 2406 * will clobber some data 2407 */ 2408 context = cm->cm_frame->header.context; 2409 2410 bcopy(l_ioc.lioc_frame.raw, cm->cm_frame, 2411 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2412 cm->cm_total_frame_size = (sizeof(union mfi_sgl) * l_ioc.lioc_sge_count) + l_ioc.lioc_sgl_off; 2413 if (l_ioc.lioc_sge_count) 2414 cm->cm_sg = 2415 (union mfi_sgl *)&cm->cm_frame->bytes[l_ioc.lioc_sgl_off]; 2416 cm->cm_flags = 0; 2417 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2418 cm->cm_flags |= MFI_CMD_DATAIN; 2419 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2420 cm->cm_flags |= MFI_CMD_DATAOUT; 2421 cm->cm_len = cm->cm_frame->header.data_len; 2422 if (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT)) { 2423 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2424 M_WAITOK | M_ZERO); 2425 if (cm->cm_data == NULL) { 2426 device_printf(sc->mfi_dev, "Malloc failed\n"); 2427 goto out; 2428 } 2429 } else { 2430 cm->cm_data = 0; 2431 } 2432 2433 /* restore header context */ 2434 cm->cm_frame->header.context = context; 2435 2436 temp = data; 2437 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2438 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2439 error = copyin(PTRIN(l_ioc.lioc_sgl[i].iov_base), 2440 temp, 2441 l_ioc.lioc_sgl[i].iov_len); 2442 if (error != 0) { 2443 device_printf(sc->mfi_dev, 2444 "Copy in failed\n"); 2445 goto out; 2446 } 2447 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2448 } 2449 } 2450 2451 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2452 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2453 2454 mtx_lock(&sc->mfi_io_lock); 2455 error = mfi_check_command_pre(sc, cm); 2456 if (error) { 2457 mtx_unlock(&sc->mfi_io_lock); 2458 goto out; 2459 } 2460 2461 if ((error = mfi_wait_command(sc, cm)) != 0) { 2462 device_printf(sc->mfi_dev, 2463 "Controller polled failed\n"); 2464 mtx_unlock(&sc->mfi_io_lock); 2465 goto out; 2466 } 2467 2468 mfi_check_command_post(sc, cm); 2469 mtx_unlock(&sc->mfi_io_lock); 2470 2471 temp = data; 2472 if (cm->cm_flags & MFI_CMD_DATAIN) { 2473 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2474 error = copyout(temp, 2475 PTRIN(l_ioc.lioc_sgl[i].iov_base), 2476 l_ioc.lioc_sgl[i].iov_len); 2477 if (error != 0) { 2478 device_printf(sc->mfi_dev, 2479 "Copy out failed\n"); 2480 goto out; 2481 } 2482 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2483 } 2484 } 2485 2486 if (l_ioc.lioc_sense_len) { 2487 /* copy out sense */ 2488 sense_ptr = &((struct mfi_linux_ioc_packet*)arg) 2489 ->lioc_frame.raw[0]; 2490 error = copyout(cm->cm_sense, sense_ptr, 2491 l_ioc.lioc_sense_len); 2492 if (error != 0) { 2493 device_printf(sc->mfi_dev, 2494 "Copy out failed\n"); 2495 goto out; 2496 } 2497 } 2498 2499 error = copyout(&cm->cm_frame->header.cmd_status, 2500 &((struct mfi_linux_ioc_packet*)arg) 2501 ->lioc_frame.hdr.cmd_status, 2502 1); 2503 if (error != 0) { 2504 device_printf(sc->mfi_dev, 2505 "Copy out failed\n"); 2506 goto out; 2507 } 2508 2509out: 2510 mfi_config_unlock(sc, locked); 2511 if (data) 2512 free(data, M_MFIBUF); 2513 if (cm) { 2514 mtx_lock(&sc->mfi_io_lock); 2515 mfi_release_command(cm); 2516 mtx_unlock(&sc->mfi_io_lock); 2517 } 2518 2519 return (error); 2520 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2521 error = copyin(arg, &l_aen, sizeof(l_aen)); 2522 if (error != 0) 2523 return (error); 2524 printf("AEN IMPLEMENTED for pid %d\n", curproc->p_pid); 2525 mfi_aen_entry = malloc(sizeof(struct mfi_aen), M_MFIBUF, 2526 M_WAITOK); 2527 mtx_lock(&sc->mfi_io_lock); 2528 if (mfi_aen_entry != NULL) { 2529 mfi_aen_entry->p = curproc; 2530 TAILQ_INSERT_TAIL(&sc->mfi_aen_pids, mfi_aen_entry, 2531 aen_link); 2532 } 2533 error = mfi_aen_register(sc, l_aen.laen_seq_num, 2534 l_aen.laen_class_locale); 2535 2536 if (error != 0) { 2537 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 2538 aen_link); 2539 free(mfi_aen_entry, M_MFIBUF); 2540 } 2541 mtx_unlock(&sc->mfi_io_lock); 2542 2543 return (error); 2544 default: 2545 device_printf(sc->mfi_dev, "IOCTL 0x%lx not handled\n", cmd); 2546 error = ENOENT; 2547 break; 2548 } 2549 2550 return (error); 2551} 2552 2553static int 2554mfi_poll(struct cdev *dev, int poll_events, struct thread *td) 2555{ 2556 struct mfi_softc *sc; 2557 int revents = 0; 2558 2559 sc = dev->si_drv1; 2560 2561 if (poll_events & (POLLIN | POLLRDNORM)) { 2562 if (sc->mfi_aen_triggered != 0) { 2563 revents |= poll_events & (POLLIN | POLLRDNORM); 2564 sc->mfi_aen_triggered = 0; 2565 } 2566 if (sc->mfi_aen_triggered == 0 && sc->mfi_aen_cm == NULL) { 2567 revents |= POLLERR; 2568 } 2569 } 2570 2571 if (revents == 0) { 2572 if (poll_events & (POLLIN | POLLRDNORM)) { 2573 sc->mfi_poll_waiting = 1; 2574 selrecord(td, &sc->mfi_select); 2575 } 2576 } 2577 2578 return revents; 2579} 2580 2581 2582static void 2583mfi_dump_all(void) 2584{ 2585 struct mfi_softc *sc; 2586 struct mfi_command *cm; 2587 devclass_t dc; 2588 time_t deadline; 2589 int timedout; 2590 int i; 2591 2592 dc = devclass_find("mfi"); 2593 if (dc == NULL) { 2594 printf("No mfi dev class\n"); 2595 return; 2596 } 2597 2598 for (i = 0; ; i++) { 2599 sc = devclass_get_softc(dc, i); 2600 if (sc == NULL) 2601 break; 2602 device_printf(sc->mfi_dev, "Dumping\n\n"); 2603 timedout = 0; 2604 deadline = time_uptime - MFI_CMD_TIMEOUT; 2605 mtx_lock(&sc->mfi_io_lock); 2606 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2607 if (cm->cm_timestamp < deadline) { 2608 device_printf(sc->mfi_dev, 2609 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2610 (int)(time_uptime - cm->cm_timestamp)); 2611 MFI_PRINT_CMD(cm); 2612 timedout++; 2613 } 2614 } 2615 2616#if 0 2617 if (timedout) 2618 MFI_DUMP_CMDS(SC); 2619#endif 2620 2621 mtx_unlock(&sc->mfi_io_lock); 2622 } 2623 2624 return; 2625} 2626 2627static void 2628mfi_timeout(void *data) 2629{ 2630 struct mfi_softc *sc = (struct mfi_softc *)data; 2631 struct mfi_command *cm; 2632 time_t deadline; 2633 int timedout = 0; 2634 2635 deadline = time_uptime - MFI_CMD_TIMEOUT; 2636 mtx_lock(&sc->mfi_io_lock); 2637 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2638 if (sc->mfi_aen_cm == cm) 2639 continue; 2640 if ((sc->mfi_aen_cm != cm) && (cm->cm_timestamp < deadline)) { 2641 device_printf(sc->mfi_dev, 2642 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2643 (int)(time_uptime - cm->cm_timestamp)); 2644 MFI_PRINT_CMD(cm); 2645 MFI_VALIDATE_CMD(sc, cm); 2646 timedout++; 2647 } 2648 } 2649 2650#if 0 2651 if (timedout) 2652 MFI_DUMP_CMDS(SC); 2653#endif 2654 2655 mtx_unlock(&sc->mfi_io_lock); 2656 2657 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 2658 mfi_timeout, sc); 2659 2660 if (0) 2661 mfi_dump_all(); 2662 return; 2663} 2664