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sys/dev/mfi/mfi.c
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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("$FreeBSD$"); 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 83 static int mfi_alloc_commands(struct mfi_softc *); 84 static int mfi_comms_init(struct mfi_softc *); 85 static int mfi_wait_command(struct mfi_softc *, struct mfi_command *); 86 static int mfi_get_controller_info(struct mfi_softc *); 87 static int mfi_get_log_state(struct mfi_softc *, 88 struct mfi_evt_log_state **); 89 static int mfi_parse_entries(struct mfi_softc *, int, int); 90 static int mfi_dcmd_command(struct mfi_softc *, struct mfi_command **, 91 uint32_t, void **, size_t); 92 static void mfi_data_cb(void *, bus_dma_segment_t *, int, int); 93 static void mfi_startup(void *arg); 94 static void mfi_intr(void *arg); 95 static void mfi_ldprobe(struct mfi_softc *sc); 96 static int mfi_aen_register(struct mfi_softc *sc, int seq, int locale); 97 static void mfi_aen_complete(struct mfi_command *); 98 static int mfi_aen_setup(struct mfi_softc *, uint32_t); 99 static int mfi_add_ld(struct mfi_softc *sc, int); 100 static void mfi_add_ld_complete(struct mfi_command *); 101 static struct mfi_command * mfi_bio_command(struct mfi_softc *); 102 static void mfi_bio_complete(struct mfi_command *); 103 static int mfi_mapcmd(struct mfi_softc *, struct mfi_command *); 104 static int mfi_send_frame(struct mfi_softc *, struct mfi_command *); 105 static void mfi_complete(struct mfi_softc *, struct mfi_command *); 106 static int mfi_abort(struct mfi_softc *, struct mfi_command *); 107 static int mfi_linux_ioctl_int(struct cdev *, u_long, caddr_t, int, d_thread_t *); 108 static void mfi_timeout(void *); 109 static int mfi_user_command(struct mfi_softc *, 110 struct mfi_ioc_passthru *); 111 static void mfi_enable_intr_xscale(struct mfi_softc *sc); 112 static void mfi_enable_intr_ppc(struct mfi_softc *sc); 113 static int32_t mfi_read_fw_status_xscale(struct mfi_softc *sc); 114 static int32_t mfi_read_fw_status_ppc(struct mfi_softc *sc); 115 static int mfi_check_clear_intr_xscale(struct mfi_softc *sc); 116 static int mfi_check_clear_intr_ppc(struct mfi_softc *sc); 117 static void mfi_issue_cmd_xscale(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt); 118 static void mfi_issue_cmd_ppc(struct mfi_softc *sc,uint32_t bus_add,uint32_t frame_cnt); 119 120 SYSCTL_NODE(_hw, OID_AUTO, mfi, CTLFLAG_RD, 0, "MFI driver parameters"); 121 static int mfi_event_locale = MFI_EVT_LOCALE_ALL; 122 TUNABLE_INT("hw.mfi.event_locale", &mfi_event_locale); 123 SYSCTL_INT(_hw_mfi, OID_AUTO, event_locale, CTLFLAG_RW, &mfi_event_locale, 124 0, "event message locale"); 125 126 static int mfi_event_class = MFI_EVT_CLASS_INFO; 127 TUNABLE_INT("hw.mfi.event_class", &mfi_event_class); 128 SYSCTL_INT(_hw_mfi, OID_AUTO, event_class, CTLFLAG_RW, &mfi_event_class, 129 0, "event message class"); 130 131 static int mfi_max_cmds = 128; 132 TUNABLE_INT("hw.mfi.max_cmds", &mfi_max_cmds); 133 SYSCTL_INT(_hw_mfi, OID_AUTO, max_cmds, CTLFLAG_RD, &mfi_max_cmds, 134 0, "Max commands"); 135 136 /* Management interface */ 137 static d_open_t mfi_open; 138 static d_close_t mfi_close; 139 static d_ioctl_t mfi_ioctl; 140 static d_poll_t mfi_poll; 141 142 static 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 }; 151 152 MALLOC_DEFINE(M_MFIBUF, "mfibuf", "Buffers for the MFI driver"); 153 154 #define MFI_INQ_LENGTH SHORT_INQUIRY_LENGTH 155 156 static void 157 mfi_enable_intr_xscale(struct mfi_softc *sc) 158 { 159 MFI_WRITE4(sc, MFI_OMSK, 0x01); 160 } 161 162 static void 163 mfi_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 } 172 173 static int32_t 174 mfi_read_fw_status_xscale(struct mfi_softc *sc) 175 { 176 return MFI_READ4(sc, MFI_OMSG0); 177 } 178 179 static int32_t 180 mfi_read_fw_status_ppc(struct mfi_softc *sc) 181 { 182 return MFI_READ4(sc, MFI_OSP0); 183 } 184 185 static int 186 mfi_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 } 197 198 static int 199 mfi_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 } 217 218 static void 219 mfi_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 } 223 224 static void 225 mfi_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 } 229 230 static int 231 mfi_transition_firmware(struct mfi_softc *sc) 232 { 233 int32_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 } 283 284 static void 285 mfi_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 } 292 293 int 294 mfi_attach(struct mfi_softc *sc) 295 { 296 uint32_t status; 297 int error, commsz, framessz, sensesz; 298 int frames, unit, max_fw_sge; 299 device_printf(sc->mfi_dev, "Megaraid SAS driver Ver 2.00 \n"); 300 301 mtx_init(&sc->mfi_io_lock, "MFI I/O lock", NULL, MTX_DEF); 302 sx_init(&sc->mfi_config_lock, "MFI config"); 303 TAILQ_INIT(&sc->mfi_ld_tqh); 304 TAILQ_INIT(&sc->mfi_aen_pids); 305 TAILQ_INIT(&sc->mfi_cam_ccbq); 306 307 mfi_initq_free(sc); 308 mfi_initq_ready(sc); 309 mfi_initq_busy(sc); 310 mfi_initq_bio(sc); 311 312 if (sc->mfi_flags & MFI_FLAGS_1064R) { 313 sc->mfi_enable_intr = mfi_enable_intr_xscale; 314 sc->mfi_read_fw_status = mfi_read_fw_status_xscale; 315 sc->mfi_check_clear_intr = mfi_check_clear_intr_xscale; 316 sc->mfi_issue_cmd = mfi_issue_cmd_xscale; 317 } 318 else { 319 sc->mfi_enable_intr = mfi_enable_intr_ppc; 320 sc->mfi_read_fw_status = mfi_read_fw_status_ppc; 321 sc->mfi_check_clear_intr = mfi_check_clear_intr_ppc; 322 sc->mfi_issue_cmd = mfi_issue_cmd_ppc; 323 } 324 325 326 /* Before we get too far, see if the firmware is working */ 327 if ((error = mfi_transition_firmware(sc)) != 0) { 328 device_printf(sc->mfi_dev, "Firmware not in READY state, " 329 "error %d\n", error); 330 return (ENXIO); 331 } 332 333 /* 334 * Get information needed for sizing the contiguous memory for the 335 * frame pool. Size down the sgl parameter since we know that 336 * we will never need more than what's required for MAXPHYS. 337 * It would be nice if these constants were available at runtime 338 * instead of compile time. 339 */ 340 status = sc->mfi_read_fw_status(sc); 341 sc->mfi_max_fw_cmds = status & MFI_FWSTATE_MAXCMD_MASK; 342 max_fw_sge = (status & MFI_FWSTATE_MAXSGL_MASK) >> 16; 343 sc->mfi_max_sge = min(max_fw_sge, ((MAXPHYS / PAGE_SIZE) + 1)); 344 345 /* 346 * Create the dma tag for data buffers. Used both for block I/O 347 * and for various internal data queries. 348 */ 349 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 350 1, 0, /* algnmnt, boundary */ 351 BUS_SPACE_MAXADDR, /* lowaddr */ 352 BUS_SPACE_MAXADDR, /* highaddr */ 353 NULL, NULL, /* filter, filterarg */ 354 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 355 sc->mfi_max_sge, /* nsegments */ 356 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 357 BUS_DMA_ALLOCNOW, /* flags */ 358 busdma_lock_mutex, /* lockfunc */ 359 &sc->mfi_io_lock, /* lockfuncarg */ 360 &sc->mfi_buffer_dmat)) { 361 device_printf(sc->mfi_dev, "Cannot allocate buffer DMA tag\n"); 362 return (ENOMEM); 363 } 364 365 /* 366 * Allocate DMA memory for the comms queues. Keep it under 4GB for 367 * efficiency. The mfi_hwcomms struct includes space for 1 reply queue 368 * entry, so the calculated size here will be will be 1 more than 369 * mfi_max_fw_cmds. This is apparently a requirement of the hardware. 370 */ 371 commsz = (sizeof(uint32_t) * sc->mfi_max_fw_cmds) + 372 sizeof(struct mfi_hwcomms); 373 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 374 1, 0, /* algnmnt, boundary */ 375 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 376 BUS_SPACE_MAXADDR, /* highaddr */ 377 NULL, NULL, /* filter, filterarg */ 378 commsz, /* maxsize */ 379 1, /* msegments */ 380 commsz, /* maxsegsize */ 381 0, /* flags */ 382 NULL, NULL, /* lockfunc, lockarg */ 383 &sc->mfi_comms_dmat)) { 384 device_printf(sc->mfi_dev, "Cannot allocate comms DMA tag\n"); 385 return (ENOMEM); 386 } 387 if (bus_dmamem_alloc(sc->mfi_comms_dmat, (void **)&sc->mfi_comms, 388 BUS_DMA_NOWAIT, &sc->mfi_comms_dmamap)) { 389 device_printf(sc->mfi_dev, "Cannot allocate comms memory\n"); 390 return (ENOMEM); 391 } 392 bzero(sc->mfi_comms, commsz); 393 bus_dmamap_load(sc->mfi_comms_dmat, sc->mfi_comms_dmamap, 394 sc->mfi_comms, commsz, mfi_addr32_cb, &sc->mfi_comms_busaddr, 0); 395 396 /* 397 * Allocate DMA memory for the command frames. Keep them in the 398 * lower 4GB for efficiency. Calculate the size of the commands at 399 * the same time; each command is one 64 byte frame plus a set of 400 * additional frames for holding sg lists or other data. 401 * The assumption here is that the SG list will start at the second 402 * frame and not use the unused bytes in the first frame. While this 403 * isn't technically correct, it simplifies the calculation and allows 404 * for command frames that might be larger than an mfi_io_frame. 405 */ 406 if (sizeof(bus_addr_t) == 8) { 407 sc->mfi_sge_size = sizeof(struct mfi_sg64); 408 sc->mfi_flags |= MFI_FLAGS_SG64; 409 } else { 410 sc->mfi_sge_size = sizeof(struct mfi_sg32); 411 } 412 frames = (sc->mfi_sge_size * sc->mfi_max_sge - 1) / MFI_FRAME_SIZE + 2; 413 sc->mfi_cmd_size = frames * MFI_FRAME_SIZE; 414 framessz = sc->mfi_cmd_size * sc->mfi_max_fw_cmds; 415 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 416 64, 0, /* algnmnt, boundary */ 417 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 418 BUS_SPACE_MAXADDR, /* highaddr */ 419 NULL, NULL, /* filter, filterarg */ 420 framessz, /* maxsize */ 421 1, /* nsegments */ 422 framessz, /* maxsegsize */ 423 0, /* flags */ 424 NULL, NULL, /* lockfunc, lockarg */ 425 &sc->mfi_frames_dmat)) { 426 device_printf(sc->mfi_dev, "Cannot allocate frame DMA tag\n"); 427 return (ENOMEM); 428 } 429 if (bus_dmamem_alloc(sc->mfi_frames_dmat, (void **)&sc->mfi_frames, 430 BUS_DMA_NOWAIT, &sc->mfi_frames_dmamap)) { 431 device_printf(sc->mfi_dev, "Cannot allocate frames memory\n"); 432 return (ENOMEM); 433 } 434 bzero(sc->mfi_frames, framessz); 435 bus_dmamap_load(sc->mfi_frames_dmat, sc->mfi_frames_dmamap, 436 sc->mfi_frames, framessz, mfi_addr32_cb, &sc->mfi_frames_busaddr,0); 437 438 /* 439 * Allocate DMA memory for the frame sense data. Keep them in the 440 * lower 4GB for efficiency 441 */ 442 sensesz = sc->mfi_max_fw_cmds * MFI_SENSE_LEN; 443 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 444 4, 0, /* algnmnt, boundary */ 445 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 446 BUS_SPACE_MAXADDR, /* highaddr */ 447 NULL, NULL, /* filter, filterarg */ 448 sensesz, /* maxsize */ 449 1, /* nsegments */ 450 sensesz, /* maxsegsize */ 451 0, /* flags */ 452 NULL, NULL, /* lockfunc, lockarg */ 453 &sc->mfi_sense_dmat)) { 454 device_printf(sc->mfi_dev, "Cannot allocate sense DMA tag\n"); 455 return (ENOMEM); 456 } 457 if (bus_dmamem_alloc(sc->mfi_sense_dmat, (void **)&sc->mfi_sense, 458 BUS_DMA_NOWAIT, &sc->mfi_sense_dmamap)) { 459 device_printf(sc->mfi_dev, "Cannot allocate sense memory\n"); 460 return (ENOMEM); 461 } 462 bus_dmamap_load(sc->mfi_sense_dmat, sc->mfi_sense_dmamap, 463 sc->mfi_sense, sensesz, mfi_addr32_cb, &sc->mfi_sense_busaddr, 0); 464 465 if ((error = mfi_alloc_commands(sc)) != 0) 466 return (error); 467 468 if ((error = mfi_comms_init(sc)) != 0) 469 return (error); 470 471 if ((error = mfi_get_controller_info(sc)) != 0) 472 return (error); 473 474 mtx_lock(&sc->mfi_io_lock); 475 if ((error = mfi_aen_setup(sc, 0), 0) != 0) { 476 mtx_unlock(&sc->mfi_io_lock); 477 return (error); 478 } 479 mtx_unlock(&sc->mfi_io_lock); 480 481 /* 482 * Set up the interrupt handler. XXX This should happen in 483 * mfi_pci.c 484 */ 485 sc->mfi_irq_rid = 0; 486 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 487 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 488 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 489 return (EINVAL); 490 } 491 if (bus_setup_intr(sc->mfi_dev, sc->mfi_irq, INTR_MPSAFE|INTR_TYPE_BIO, 492 mfi_intr, sc, &sc->mfi_intr)) { 493 device_printf(sc->mfi_dev, "Cannot set up interrupt\n"); 494 return (EINVAL); 495 } 496 497 /* Register a config hook to probe the bus for arrays */ 498 sc->mfi_ich.ich_func = mfi_startup; 499 sc->mfi_ich.ich_arg = sc; 500 if (config_intrhook_establish(&sc->mfi_ich) != 0) { 501 device_printf(sc->mfi_dev, "Cannot establish configuration " 502 "hook\n"); 503 return (EINVAL); 504 } 505 506 /* 507 * Register a shutdown handler. 508 */ 509 if ((sc->mfi_eh = EVENTHANDLER_REGISTER(shutdown_final, mfi_shutdown, 510 sc, SHUTDOWN_PRI_DEFAULT)) == NULL) { 511 device_printf(sc->mfi_dev, "Warning: shutdown event " 512 "registration failed\n"); 513 } 514 515 /* 516 * Create the control device for doing management 517 */ 518 unit = device_get_unit(sc->mfi_dev); 519 sc->mfi_cdev = make_dev(&mfi_cdevsw, unit, UID_ROOT, GID_OPERATOR, 520 0640, "mfi%d", unit); 521 if (unit == 0) 522 make_dev_alias(sc->mfi_cdev, "megaraid_sas_ioctl_node"); 523 if (sc->mfi_cdev != NULL) 524 sc->mfi_cdev->si_drv1 = sc; 525 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 526 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 527 OID_AUTO, "delete_busy_volumes", CTLFLAG_RW, 528 &sc->mfi_delete_busy_volumes, 0, "Allow removal of busy volumes"); 529 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->mfi_dev), 530 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->mfi_dev)), 531 OID_AUTO, "keep_deleted_volumes", CTLFLAG_RW, 532 &sc->mfi_keep_deleted_volumes, 0, 533 "Don't detach the mfid device for a busy volume that is deleted"); 534 535 device_add_child(sc->mfi_dev, "mfip", -1); 536 bus_generic_attach(sc->mfi_dev); 537 538 /* Start the timeout watchdog */ 539 callout_init(&sc->mfi_watchdog_callout, CALLOUT_MPSAFE); 540 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 541 mfi_timeout, sc); 542 543 return (0); 544 } 545 546 static int 547 mfi_alloc_commands(struct mfi_softc *sc) 548 { 549 struct mfi_command *cm; 550 int i, ncmds; 551 552 /* 553 * XXX Should we allocate all the commands up front, or allocate on 554 * demand later like 'aac' does? 555 */ 556 ncmds = MIN(mfi_max_cmds, sc->mfi_max_fw_cmds); 557 if (bootverbose) 558 device_printf(sc->mfi_dev, "Max fw cmds= %d, sizing driver " 559 "pool to %d\n", sc->mfi_max_fw_cmds, ncmds); 560 561 sc->mfi_commands = malloc(sizeof(struct mfi_command) * ncmds, M_MFIBUF, 562 M_WAITOK | M_ZERO); 563 564 for (i = 0; i < ncmds; i++) { 565 cm = &sc->mfi_commands[i]; 566 cm->cm_frame = (union mfi_frame *)((uintptr_t)sc->mfi_frames + 567 sc->mfi_cmd_size * i); 568 cm->cm_frame_busaddr = sc->mfi_frames_busaddr + 569 sc->mfi_cmd_size * i; 570 cm->cm_frame->header.context = i; 571 cm->cm_sense = &sc->mfi_sense[i]; 572 cm->cm_sense_busaddr= sc->mfi_sense_busaddr + MFI_SENSE_LEN * i; 573 cm->cm_sc = sc; 574 cm->cm_index = i; 575 if (bus_dmamap_create(sc->mfi_buffer_dmat, 0, 576 &cm->cm_dmamap) == 0) 577 mfi_release_command(cm); 578 else 579 break; 580 sc->mfi_total_cmds++; 581 } 582 583 return (0); 584 } 585 586 void 587 mfi_release_command(struct mfi_command *cm) 588 { 589 struct mfi_frame_header *hdr; 590 uint32_t *hdr_data; 591 592 /* 593 * Zero out the important fields of the frame, but make sure the 594 * context field is preserved. For efficiency, handle the fields 595 * as 32 bit words. Clear out the first S/G entry too for safety. 596 */ 597 hdr = &cm->cm_frame->header; 598 if (cm->cm_data != NULL && hdr->sg_count) { 599 cm->cm_sg->sg32[0].len = 0; 600 cm->cm_sg->sg32[0].addr = 0; 601 } 602 603 hdr_data = (uint32_t *)cm->cm_frame; 604 hdr_data[0] = 0; /* cmd, sense_len, cmd_status, scsi_status */ 605 hdr_data[1] = 0; /* target_id, lun_id, cdb_len, sg_count */ 606 hdr_data[4] = 0; /* flags, timeout */ 607 hdr_data[5] = 0; /* data_len */ 608 609 cm->cm_extra_frames = 0; 610 cm->cm_flags = 0; 611 cm->cm_complete = NULL; 612 cm->cm_private = NULL; 613 cm->cm_data = NULL; 614 cm->cm_sg = 0; 615 cm->cm_total_frame_size = 0; 616 617 mfi_enqueue_free(cm); 618 } 619 620 static int 621 mfi_dcmd_command(struct mfi_softc *sc, struct mfi_command **cmp, uint32_t opcode, 622 void **bufp, size_t bufsize) 623 { 624 struct mfi_command *cm; 625 struct mfi_dcmd_frame *dcmd; 626 void *buf = NULL; 627 628 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 629 630 cm = mfi_dequeue_free(sc); 631 if (cm == NULL) 632 return (EBUSY); 633 634 if ((bufsize > 0) && (bufp != NULL)) { 635 if (*bufp == NULL) { 636 buf = malloc(bufsize, M_MFIBUF, M_NOWAIT|M_ZERO); 637 if (buf == NULL) { 638 mfi_release_command(cm); 639 return (ENOMEM); 640 } 641 *bufp = buf; 642 } else { 643 buf = *bufp; 644 } 645 } 646 647 dcmd = &cm->cm_frame->dcmd; 648 bzero(dcmd->mbox, MFI_MBOX_SIZE); 649 dcmd->header.cmd = MFI_CMD_DCMD; 650 dcmd->header.timeout = 0; 651 dcmd->header.flags = 0; 652 dcmd->header.data_len = bufsize; 653 dcmd->opcode = opcode; 654 cm->cm_sg = &dcmd->sgl; 655 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 656 cm->cm_flags = 0; 657 cm->cm_data = buf; 658 cm->cm_private = buf; 659 cm->cm_len = bufsize; 660 661 *cmp = cm; 662 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 663 *bufp = buf; 664 return (0); 665 } 666 667 static int 668 mfi_comms_init(struct mfi_softc *sc) 669 { 670 struct mfi_command *cm; 671 struct mfi_init_frame *init; 672 struct mfi_init_qinfo *qinfo; 673 int error; 674 675 mtx_lock(&sc->mfi_io_lock); 676 if ((cm = mfi_dequeue_free(sc)) == NULL) 677 return (EBUSY); 678 679 /* 680 * Abuse the SG list area of the frame to hold the init_qinfo 681 * object; 682 */ 683 init = &cm->cm_frame->init; 684 qinfo = (struct mfi_init_qinfo *)((uintptr_t)init + MFI_FRAME_SIZE); 685 686 bzero(qinfo, sizeof(struct mfi_init_qinfo)); 687 qinfo->rq_entries = sc->mfi_max_fw_cmds + 1; 688 qinfo->rq_addr_lo = sc->mfi_comms_busaddr + 689 offsetof(struct mfi_hwcomms, hw_reply_q); 690 qinfo->pi_addr_lo = sc->mfi_comms_busaddr + 691 offsetof(struct mfi_hwcomms, hw_pi); 692 qinfo->ci_addr_lo = sc->mfi_comms_busaddr + 693 offsetof(struct mfi_hwcomms, hw_ci); 694 695 init->header.cmd = MFI_CMD_INIT; 696 init->header.data_len = sizeof(struct mfi_init_qinfo); 697 init->qinfo_new_addr_lo = cm->cm_frame_busaddr + MFI_FRAME_SIZE; 698 cm->cm_data = NULL; 699 cm->cm_flags = MFI_CMD_POLLED; 700 701 if ((error = mfi_mapcmd(sc, cm)) != 0) { 702 device_printf(sc->mfi_dev, "failed to send init command\n"); 703 mtx_unlock(&sc->mfi_io_lock); 704 return (error); 705 } 706 mfi_release_command(cm); 707 mtx_unlock(&sc->mfi_io_lock); 708 709 return (0); 710 } 711 712 static int 713 mfi_get_controller_info(struct mfi_softc *sc) 714 { 715 struct mfi_command *cm = NULL; 716 struct mfi_ctrl_info *ci = NULL; 717 uint32_t max_sectors_1, max_sectors_2; 718 int error; 719 720 mtx_lock(&sc->mfi_io_lock); 721 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_GETINFO, 722 (void **)&ci, sizeof(*ci)); 723 if (error) 724 goto out; 725 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 726 727 if ((error = mfi_mapcmd(sc, cm)) != 0) { 728 device_printf(sc->mfi_dev, "Failed to get controller info\n"); 729 sc->mfi_max_io = (sc->mfi_max_sge - 1) * PAGE_SIZE / 730 MFI_SECTOR_LEN; 731 error = 0; 732 goto out; 733 } 734 735 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 736 BUS_DMASYNC_POSTREAD); 737 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 738 739 max_sectors_1 = (1 << ci->stripe_sz_ops.min) * ci->max_strips_per_io; 740 max_sectors_2 = ci->max_request_size; 741 sc->mfi_max_io = min(max_sectors_1, max_sectors_2); 742 743 out: 744 if (ci) 745 free(ci, M_MFIBUF); 746 if (cm) 747 mfi_release_command(cm); 748 mtx_unlock(&sc->mfi_io_lock); 749 return (error); 750 } 751 752 static int 753 mfi_get_log_state(struct mfi_softc *sc, struct mfi_evt_log_state **log_state) 754 { 755 struct mfi_command *cm = NULL; 756 int error; 757 758 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_GETINFO, 759 (void **)log_state, sizeof(**log_state)); 760 if (error) 761 goto out; 762 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 763 764 if ((error = mfi_mapcmd(sc, cm)) != 0) { 765 device_printf(sc->mfi_dev, "Failed to get log state\n"); 766 goto out; 767 } 768 769 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 770 BUS_DMASYNC_POSTREAD); 771 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 772 773 out: 774 if (cm) 775 mfi_release_command(cm); 776 777 return (error); 778 } 779 780 static int 781 mfi_aen_setup(struct mfi_softc *sc, uint32_t seq_start) 782 { 783 struct mfi_evt_log_state *log_state = NULL; 784 union mfi_evt class_locale; 785 int error = 0; 786 uint32_t seq; 787 788 class_locale.members.reserved = 0; 789 class_locale.members.locale = mfi_event_locale; 790 class_locale.members.class = mfi_event_class; 791 792 if (seq_start == 0) { 793 error = mfi_get_log_state(sc, &log_state); 794 if (error) { 795 if (log_state) 796 free(log_state, M_MFIBUF); 797 return (error); 798 } 799 800 /* 801 * Walk through any events that fired since the last 802 * shutdown. 803 */ 804 mfi_parse_entries(sc, log_state->shutdown_seq_num, 805 log_state->newest_seq_num); 806 seq = log_state->newest_seq_num; 807 } else 808 seq = seq_start; 809 mfi_aen_register(sc, seq, class_locale.word); 810 free(log_state, M_MFIBUF); 811 812 return 0; 813 } 814 815 static int 816 mfi_wait_command(struct mfi_softc *sc, struct mfi_command *cm) 817 { 818 819 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 820 cm->cm_complete = NULL; 821 822 823 /* 824 * MegaCli can issue a DCMD of 0. In this case do nothing 825 * and return 0 to it as status 826 */ 827 if (cm->cm_frame->dcmd.opcode == 0) { 828 cm->cm_frame->header.cmd_status = MFI_STAT_OK; 829 cm->cm_error = 0; 830 return (cm->cm_error); 831 } 832 mfi_enqueue_ready(cm); 833 mfi_startio(sc); 834 if ((cm->cm_flags & MFI_CMD_COMPLETED) == 0) 835 msleep(cm, &sc->mfi_io_lock, PRIBIO, "mfiwait", 0); 836 return (cm->cm_error); 837 } 838 839 void 840 mfi_free(struct mfi_softc *sc) 841 { 842 struct mfi_command *cm; 843 int i; 844 845 callout_drain(&sc->mfi_watchdog_callout); 846 847 if (sc->mfi_cdev != NULL) 848 destroy_dev(sc->mfi_cdev); 849 850 if (sc->mfi_total_cmds != 0) { 851 for (i = 0; i < sc->mfi_total_cmds; i++) { 852 cm = &sc->mfi_commands[i]; 853 bus_dmamap_destroy(sc->mfi_buffer_dmat, cm->cm_dmamap); 854 } 855 free(sc->mfi_commands, M_MFIBUF); 856 } 857 858 if (sc->mfi_intr) 859 bus_teardown_intr(sc->mfi_dev, sc->mfi_irq, sc->mfi_intr); 860 if (sc->mfi_irq != NULL) 861 bus_release_resource(sc->mfi_dev, SYS_RES_IRQ, sc->mfi_irq_rid, 862 sc->mfi_irq); 863 864 if (sc->mfi_sense_busaddr != 0) 865 bus_dmamap_unload(sc->mfi_sense_dmat, sc->mfi_sense_dmamap); 866 if (sc->mfi_sense != NULL) 867 bus_dmamem_free(sc->mfi_sense_dmat, sc->mfi_sense, 868 sc->mfi_sense_dmamap); 869 if (sc->mfi_sense_dmat != NULL) 870 bus_dma_tag_destroy(sc->mfi_sense_dmat); 871 872 if (sc->mfi_frames_busaddr != 0) 873 bus_dmamap_unload(sc->mfi_frames_dmat, sc->mfi_frames_dmamap); 874 if (sc->mfi_frames != NULL) 875 bus_dmamem_free(sc->mfi_frames_dmat, sc->mfi_frames, 876 sc->mfi_frames_dmamap); 877 if (sc->mfi_frames_dmat != NULL) 878 bus_dma_tag_destroy(sc->mfi_frames_dmat); 879 880 if (sc->mfi_comms_busaddr != 0) 881 bus_dmamap_unload(sc->mfi_comms_dmat, sc->mfi_comms_dmamap); 882 if (sc->mfi_comms != NULL) 883 bus_dmamem_free(sc->mfi_comms_dmat, sc->mfi_comms, 884 sc->mfi_comms_dmamap); 885 if (sc->mfi_comms_dmat != NULL) 886 bus_dma_tag_destroy(sc->mfi_comms_dmat); 887 888 if (sc->mfi_buffer_dmat != NULL) 889 bus_dma_tag_destroy(sc->mfi_buffer_dmat); 890 if (sc->mfi_parent_dmat != NULL) 891 bus_dma_tag_destroy(sc->mfi_parent_dmat); 892 893 if (mtx_initialized(&sc->mfi_io_lock)) { 894 mtx_destroy(&sc->mfi_io_lock); 895 sx_destroy(&sc->mfi_config_lock); 896 } 897 898 return; 899 } 900 901 static void 902 mfi_startup(void *arg) 903 { 904 struct mfi_softc *sc; 905 906 sc = (struct mfi_softc *)arg; 907 908 config_intrhook_disestablish(&sc->mfi_ich); 909 910 sc->mfi_enable_intr(sc); 911 sx_xlock(&sc->mfi_config_lock); 912 mtx_lock(&sc->mfi_io_lock); 913 mfi_ldprobe(sc); 914 mtx_unlock(&sc->mfi_io_lock); 915 sx_xunlock(&sc->mfi_config_lock); 916 } 917 918 static void 919 mfi_intr(void *arg) 920 { 921 struct mfi_softc *sc; 922 struct mfi_command *cm; 923 uint32_t pi, ci, context; 924 925 sc = (struct mfi_softc *)arg; 926 927 if (sc->mfi_check_clear_intr(sc)) 928 return; 929 930 pi = sc->mfi_comms->hw_pi; 931 ci = sc->mfi_comms->hw_ci; 932 mtx_lock(&sc->mfi_io_lock); 933 while (ci != pi) { 934 context = sc->mfi_comms->hw_reply_q[ci]; 935 if (context < sc->mfi_max_fw_cmds) { 936 cm = &sc->mfi_commands[context]; 937 mfi_remove_busy(cm); 938 cm->cm_error = 0; 939 mfi_complete(sc, cm); 940 } 941 if (++ci == (sc->mfi_max_fw_cmds + 1)) { 942 ci = 0; 943 } 944 } 945 946 sc->mfi_comms->hw_ci = ci; 947 948 /* Give defered I/O a chance to run */ 949 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 950 sc->mfi_flags &= ~MFI_FLAGS_QFRZN; 951 mfi_startio(sc); 952 mtx_unlock(&sc->mfi_io_lock); 953 954 return; 955 } 956 957 int 958 mfi_shutdown(struct mfi_softc *sc) 959 { 960 struct mfi_dcmd_frame *dcmd; 961 struct mfi_command *cm; 962 int error; 963 964 mtx_lock(&sc->mfi_io_lock); 965 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_SHUTDOWN, NULL, 0); 966 if (error) { 967 mtx_unlock(&sc->mfi_io_lock); 968 return (error); 969 } 970 971 if (sc->mfi_aen_cm != NULL) 972 mfi_abort(sc, sc->mfi_aen_cm); 973 974 dcmd = &cm->cm_frame->dcmd; 975 dcmd->header.flags = MFI_FRAME_DIR_NONE; 976 cm->cm_flags = MFI_CMD_POLLED; 977 cm->cm_data = NULL; 978 979 if ((error = mfi_mapcmd(sc, cm)) != 0) { 980 device_printf(sc->mfi_dev, "Failed to shutdown controller\n"); 981 } 982 983 mfi_release_command(cm); 984 mtx_unlock(&sc->mfi_io_lock); 985 return (error); 986 } 987 988 static void 989 mfi_ldprobe(struct mfi_softc *sc) 990 { 991 struct mfi_frame_header *hdr; 992 struct mfi_command *cm = NULL; 993 struct mfi_ld_list *list = NULL; 994 struct mfi_disk *ld; 995 int error, i; 996 997 sx_assert(&sc->mfi_config_lock, SA_XLOCKED); 998 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 999 1000 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_LIST, 1001 (void **)&list, sizeof(*list)); 1002 if (error) 1003 goto out; 1004 1005 cm->cm_flags = MFI_CMD_DATAIN; 1006 if (mfi_wait_command(sc, cm) != 0) { 1007 device_printf(sc->mfi_dev, "Failed to get device listing\n"); 1008 goto out; 1009 } 1010 1011 hdr = &cm->cm_frame->header; 1012 if (hdr->cmd_status != MFI_STAT_OK) { 1013 device_printf(sc->mfi_dev, "MFI_DCMD_LD_GET_LIST failed %x\n", 1014 hdr->cmd_status); 1015 goto out; 1016 } 1017 1018 for (i = 0; i < list->ld_count; i++) { 1019 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1020 if (ld->ld_id == list->ld_list[i].ld.v.target_id) 1021 goto skip_add; 1022 } 1023 mfi_add_ld(sc, list->ld_list[i].ld.v.target_id); 1024 skip_add:; 1025 } 1026 out: 1027 if (list) 1028 free(list, M_MFIBUF); 1029 if (cm) 1030 mfi_release_command(cm); 1031 1032 return; 1033 } 1034 1035 /* 1036 * The timestamp is the number of seconds since 00:00 Jan 1, 2000. If 1037 * the bits in 24-31 are all set, then it is the number of seconds since 1038 * boot. 1039 */ 1040 static const char * 1041 format_timestamp(uint32_t timestamp) 1042 { 1043 static char buffer[32]; 1044 1045 if ((timestamp & 0xff000000) == 0xff000000) 1046 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 1047 0x00ffffff); 1048 else 1049 snprintf(buffer, sizeof(buffer), "%us", timestamp); 1050 return (buffer); 1051 } 1052 1053 static const char * 1054 format_class(int8_t class) 1055 { 1056 static char buffer[6]; 1057 1058 switch (class) { 1059 case MFI_EVT_CLASS_DEBUG: 1060 return ("debug"); 1061 case MFI_EVT_CLASS_PROGRESS: 1062 return ("progress"); 1063 case MFI_EVT_CLASS_INFO: 1064 return ("info"); 1065 case MFI_EVT_CLASS_WARNING: 1066 return ("WARN"); 1067 case MFI_EVT_CLASS_CRITICAL: 1068 return ("CRIT"); 1069 case MFI_EVT_CLASS_FATAL: 1070 return ("FATAL"); 1071 case MFI_EVT_CLASS_DEAD: 1072 return ("DEAD"); 1073 default: 1074 snprintf(buffer, sizeof(buffer), "%d", class); 1075 return (buffer); 1076 } 1077 } 1078 1079 static void 1080 mfi_decode_evt(struct mfi_softc *sc, struct mfi_evt_detail *detail) 1081 { 1082 1083 device_printf(sc->mfi_dev, "%d (%s/0x%04x/%s) - %s\n", detail->seq, 1084 format_timestamp(detail->time), detail->class.members.locale, 1085 format_class(detail->class.members.class), detail->description); 1086 } 1087 1088 static int 1089 mfi_aen_register(struct mfi_softc *sc, int seq, int locale) 1090 { 1091 struct mfi_command *cm; 1092 struct mfi_dcmd_frame *dcmd; 1093 union mfi_evt current_aen, prior_aen; 1094 struct mfi_evt_detail *ed = NULL; 1095 int error = 0; 1096 1097 current_aen.word = locale; 1098 if (sc->mfi_aen_cm != NULL) { 1099 prior_aen.word = 1100 ((uint32_t *)&sc->mfi_aen_cm->cm_frame->dcmd.mbox)[1]; 1101 if (prior_aen.members.class <= current_aen.members.class && 1102 !((prior_aen.members.locale & current_aen.members.locale) 1103 ^current_aen.members.locale)) { 1104 return (0); 1105 } else { 1106 prior_aen.members.locale |= current_aen.members.locale; 1107 if (prior_aen.members.class 1108 < current_aen.members.class) 1109 current_aen.members.class = 1110 prior_aen.members.class; 1111 mfi_abort(sc, sc->mfi_aen_cm); 1112 } 1113 } 1114 1115 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_CTRL_EVENT_WAIT, 1116 (void **)&ed, sizeof(*ed)); 1117 if (error) { 1118 goto out; 1119 } 1120 1121 dcmd = &cm->cm_frame->dcmd; 1122 ((uint32_t *)&dcmd->mbox)[0] = seq; 1123 ((uint32_t *)&dcmd->mbox)[1] = locale; 1124 cm->cm_flags = MFI_CMD_DATAIN; 1125 cm->cm_complete = mfi_aen_complete; 1126 1127 sc->mfi_aen_cm = cm; 1128 1129 mfi_enqueue_ready(cm); 1130 mfi_startio(sc); 1131 1132 out: 1133 return (error); 1134 } 1135 1136 static void 1137 mfi_aen_complete(struct mfi_command *cm) 1138 { 1139 struct mfi_frame_header *hdr; 1140 struct mfi_softc *sc; 1141 struct mfi_evt_detail *detail; 1142 struct mfi_aen *mfi_aen_entry, *tmp; 1143 int seq = 0, aborted = 0; 1144 1145 sc = cm->cm_sc; 1146 hdr = &cm->cm_frame->header; 1147 1148 if (sc->mfi_aen_cm == NULL) 1149 return; 1150 1151 if (sc->mfi_aen_cm->cm_aen_abort || hdr->cmd_status == 0xff) { 1152 sc->mfi_aen_cm->cm_aen_abort = 0; 1153 aborted = 1; 1154 } else { 1155 sc->mfi_aen_triggered = 1; 1156 if (sc->mfi_poll_waiting) { 1157 sc->mfi_poll_waiting = 0; 1158 selwakeup(&sc->mfi_select); 1159 } 1160 detail = cm->cm_data; 1161 /* 1162 * XXX If this function is too expensive or is recursive, then 1163 * events should be put onto a queue and processed later. 1164 */ 1165 mfi_decode_evt(sc, detail); 1166 seq = detail->seq + 1; 1167 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1168 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1169 aen_link); 1170 PROC_LOCK(mfi_aen_entry->p); 1171 psignal(mfi_aen_entry->p, SIGIO); 1172 PROC_UNLOCK(mfi_aen_entry->p); 1173 free(mfi_aen_entry, M_MFIBUF); 1174 } 1175 } 1176 1177 free(cm->cm_data, M_MFIBUF); 1178 sc->mfi_aen_cm = NULL; 1179 wakeup(&sc->mfi_aen_cm); 1180 mfi_release_command(cm); 1181 1182 /* set it up again so the driver can catch more events */ 1183 if (!aborted) { 1184 mfi_aen_setup(sc, seq); 1185 } 1186 } 1187 1188 #define MAX_EVENTS 15 1189 1190 static int 1191 mfi_parse_entries(struct mfi_softc *sc, int start_seq, int stop_seq) 1192 { 1193 struct mfi_command *cm; 1194 struct mfi_dcmd_frame *dcmd; 1195 struct mfi_evt_list *el; 1196 union mfi_evt class_locale; 1197 int error, i, seq, size; 1198 1199 class_locale.members.reserved = 0; 1200 class_locale.members.locale = mfi_event_locale; 1201 class_locale.members.class = mfi_event_class; 1202 1203 size = sizeof(struct mfi_evt_list) + sizeof(struct mfi_evt_detail) 1204 * (MAX_EVENTS - 1); 1205 el = malloc(size, M_MFIBUF, M_NOWAIT | M_ZERO); 1206 if (el == NULL) 1207 return (ENOMEM); 1208 1209 for (seq = start_seq;;) { 1210 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1211 free(el, M_MFIBUF); 1212 return (EBUSY); 1213 } 1214 1215 dcmd = &cm->cm_frame->dcmd; 1216 bzero(dcmd->mbox, MFI_MBOX_SIZE); 1217 dcmd->header.cmd = MFI_CMD_DCMD; 1218 dcmd->header.timeout = 0; 1219 dcmd->header.data_len = size; 1220 dcmd->opcode = MFI_DCMD_CTRL_EVENT_GET; 1221 ((uint32_t *)&dcmd->mbox)[0] = seq; 1222 ((uint32_t *)&dcmd->mbox)[1] = class_locale.word; 1223 cm->cm_sg = &dcmd->sgl; 1224 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 1225 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 1226 cm->cm_data = el; 1227 cm->cm_len = size; 1228 1229 if ((error = mfi_mapcmd(sc, cm)) != 0) { 1230 device_printf(sc->mfi_dev, 1231 "Failed to get controller entries\n"); 1232 mfi_release_command(cm); 1233 break; 1234 } 1235 1236 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1237 BUS_DMASYNC_POSTREAD); 1238 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1239 1240 if (dcmd->header.cmd_status == MFI_STAT_NOT_FOUND) { 1241 mfi_release_command(cm); 1242 break; 1243 } 1244 if (dcmd->header.cmd_status != MFI_STAT_OK) { 1245 device_printf(sc->mfi_dev, 1246 "Error %d fetching controller entries\n", 1247 dcmd->header.cmd_status); 1248 mfi_release_command(cm); 1249 break; 1250 } 1251 mfi_release_command(cm); 1252 1253 for (i = 0; i < el->count; i++) { 1254 /* 1255 * If this event is newer than 'stop_seq' then 1256 * break out of the loop. Note that the log 1257 * is a circular buffer so we have to handle 1258 * the case that our stop point is earlier in 1259 * the buffer than our start point. 1260 */ 1261 if (el->event[i].seq >= stop_seq) { 1262 if (start_seq <= stop_seq) 1263 break; 1264 else if (el->event[i].seq < start_seq) 1265 break; 1266 } 1267 mfi_decode_evt(sc, &el->event[i]); 1268 } 1269 seq = el->event[el->count - 1].seq + 1; 1270 } 1271 1272 free(el, M_MFIBUF); 1273 return (0); 1274 } 1275 1276 static int 1277 mfi_add_ld(struct mfi_softc *sc, int id) 1278 { 1279 struct mfi_command *cm; 1280 struct mfi_dcmd_frame *dcmd = NULL; 1281 struct mfi_ld_info *ld_info = NULL; 1282 int error; 1283 1284 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1285 1286 error = mfi_dcmd_command(sc, &cm, MFI_DCMD_LD_GET_INFO, 1287 (void **)&ld_info, sizeof(*ld_info)); 1288 if (error) { 1289 device_printf(sc->mfi_dev, 1290 "Failed to allocate for MFI_DCMD_LD_GET_INFO %d\n", error); 1291 if (ld_info) 1292 free(ld_info, M_MFIBUF); 1293 return (error); 1294 } 1295 cm->cm_flags = MFI_CMD_DATAIN; 1296 dcmd = &cm->cm_frame->dcmd; 1297 dcmd->mbox[0] = id; 1298 if (mfi_wait_command(sc, cm) != 0) { 1299 device_printf(sc->mfi_dev, 1300 "Failed to get logical drive: %d\n", id); 1301 free(ld_info, M_MFIBUF); 1302 return (0); 1303 } 1304 1305 mfi_add_ld_complete(cm); 1306 return (0); 1307 } 1308 1309 static void 1310 mfi_add_ld_complete(struct mfi_command *cm) 1311 { 1312 struct mfi_frame_header *hdr; 1313 struct mfi_ld_info *ld_info; 1314 struct mfi_softc *sc; 1315 device_t child; 1316 1317 sc = cm->cm_sc; 1318 hdr = &cm->cm_frame->header; 1319 ld_info = cm->cm_private; 1320 1321 if (hdr->cmd_status != MFI_STAT_OK) { 1322 free(ld_info, M_MFIBUF); 1323 mfi_release_command(cm); 1324 return; 1325 } 1326 mfi_release_command(cm); 1327 1328 mtx_unlock(&sc->mfi_io_lock); 1329 mtx_lock(&Giant); 1330 if ((child = device_add_child(sc->mfi_dev, "mfid", -1)) == NULL) { 1331 device_printf(sc->mfi_dev, "Failed to add logical disk\n"); 1332 free(ld_info, M_MFIBUF); 1333 mtx_unlock(&Giant); 1334 mtx_lock(&sc->mfi_io_lock); 1335 return; 1336 } 1337 1338 device_set_ivars(child, ld_info); 1339 device_set_desc(child, "MFI Logical Disk"); 1340 bus_generic_attach(sc->mfi_dev); 1341 mtx_unlock(&Giant); 1342 mtx_lock(&sc->mfi_io_lock); 1343 } 1344 1345 static struct mfi_command * 1346 mfi_bio_command(struct mfi_softc *sc) 1347 { 1348 struct mfi_io_frame *io; 1349 struct mfi_command *cm; 1350 struct bio *bio; 1351 int flags, blkcount; 1352 1353 if ((cm = mfi_dequeue_free(sc)) == NULL) 1354 return (NULL); 1355 1356 if ((bio = mfi_dequeue_bio(sc)) == NULL) { 1357 mfi_release_command(cm); 1358 return (NULL); 1359 } 1360 1361 io = &cm->cm_frame->io; 1362 switch (bio->bio_cmd & 0x03) { 1363 case BIO_READ: 1364 io->header.cmd = MFI_CMD_LD_READ; 1365 flags = MFI_CMD_DATAIN; 1366 break; 1367 case BIO_WRITE: 1368 io->header.cmd = MFI_CMD_LD_WRITE; 1369 flags = MFI_CMD_DATAOUT; 1370 break; 1371 default: 1372 panic("Invalid bio command"); 1373 } 1374 1375 /* Cheat with the sector length to avoid a non-constant division */ 1376 blkcount = (bio->bio_bcount + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1377 io->header.target_id = (uintptr_t)bio->bio_driver1; 1378 io->header.timeout = 0; 1379 io->header.flags = 0; 1380 io->header.sense_len = MFI_SENSE_LEN; 1381 io->header.data_len = blkcount; 1382 io->sense_addr_lo = cm->cm_sense_busaddr; 1383 io->sense_addr_hi = 0; 1384 io->lba_hi = (bio->bio_pblkno & 0xffffffff00000000) >> 32; 1385 io->lba_lo = bio->bio_pblkno & 0xffffffff; 1386 cm->cm_complete = mfi_bio_complete; 1387 cm->cm_private = bio; 1388 cm->cm_data = bio->bio_data; 1389 cm->cm_len = bio->bio_bcount; 1390 cm->cm_sg = &io->sgl; 1391 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1392 cm->cm_flags = flags; 1393 return (cm); 1394 } 1395 1396 static void 1397 mfi_bio_complete(struct mfi_command *cm) 1398 { 1399 struct bio *bio; 1400 struct mfi_frame_header *hdr; 1401 struct mfi_softc *sc; 1402 1403 bio = cm->cm_private; 1404 hdr = &cm->cm_frame->header; 1405 sc = cm->cm_sc; 1406 1407 if ((hdr->cmd_status != 0) || (hdr->scsi_status != 0)) { 1408 bio->bio_flags |= BIO_ERROR; 1409 bio->bio_error = EIO; 1410 device_printf(sc->mfi_dev, "I/O error, status= %d " 1411 "scsi_status= %d\n", hdr->cmd_status, hdr->scsi_status); 1412 mfi_print_sense(cm->cm_sc, cm->cm_sense); 1413 } else if (cm->cm_error != 0) { 1414 bio->bio_flags |= BIO_ERROR; 1415 } 1416 1417 mfi_release_command(cm); 1418 mfi_disk_complete(bio); 1419 } 1420 1421 void 1422 mfi_startio(struct mfi_softc *sc) 1423 { 1424 struct mfi_command *cm; 1425 struct ccb_hdr *ccbh; 1426 1427 for (;;) { 1428 /* Don't bother if we're short on resources */ 1429 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 1430 break; 1431 1432 /* Try a command that has already been prepared */ 1433 cm = mfi_dequeue_ready(sc); 1434 1435 if (cm == NULL) { 1436 if ((ccbh = TAILQ_FIRST(&sc->mfi_cam_ccbq)) != NULL) 1437 cm = sc->mfi_cam_start(ccbh); 1438 } 1439 1440 /* Nope, so look for work on the bioq */ 1441 if (cm == NULL) 1442 cm = mfi_bio_command(sc); 1443 1444 /* No work available, so exit */ 1445 if (cm == NULL) 1446 break; 1447 1448 /* Send the command to the controller */ 1449 if (mfi_mapcmd(sc, cm) != 0) { 1450 mfi_requeue_ready(cm); 1451 break; 1452 } 1453 } 1454 } 1455 1456 static int 1457 mfi_mapcmd(struct mfi_softc *sc, struct mfi_command *cm) 1458 { 1459 int error, polled; 1460 1461 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1462 1463 if (cm->cm_data != NULL) { 1464 polled = (cm->cm_flags & MFI_CMD_POLLED) ? BUS_DMA_NOWAIT : 0; 1465 error = bus_dmamap_load(sc->mfi_buffer_dmat, cm->cm_dmamap, 1466 cm->cm_data, cm->cm_len, mfi_data_cb, cm, polled); 1467 if (error == EINPROGRESS) { 1468 sc->mfi_flags |= MFI_FLAGS_QFRZN; 1469 return (0); 1470 } 1471 } else { 1472 error = mfi_send_frame(sc, cm); 1473 } 1474 1475 return (error); 1476 } 1477 1478 static void 1479 mfi_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1480 { 1481 struct mfi_frame_header *hdr; 1482 struct mfi_command *cm; 1483 union mfi_sgl *sgl; 1484 struct mfi_softc *sc; 1485 int i, dir; 1486 1487 cm = (struct mfi_command *)arg; 1488 sc = cm->cm_sc; 1489 hdr = &cm->cm_frame->header; 1490 sgl = cm->cm_sg; 1491 1492 if (error) { 1493 printf("error %d in callback\n", error); 1494 cm->cm_error = error; 1495 mfi_complete(sc, cm); 1496 return; 1497 } 1498 1499 if ((sc->mfi_flags & MFI_FLAGS_SG64) == 0) { 1500 for (i = 0; i < nsegs; i++) { 1501 sgl->sg32[i].addr = segs[i].ds_addr; 1502 sgl->sg32[i].len = segs[i].ds_len; 1503 } 1504 } else { 1505 for (i = 0; i < nsegs; i++) { 1506 sgl->sg64[i].addr = segs[i].ds_addr; 1507 sgl->sg64[i].len = segs[i].ds_len; 1508 } 1509 hdr->flags |= MFI_FRAME_SGL64; 1510 } 1511 hdr->sg_count = nsegs; 1512 1513 dir = 0; 1514 if (cm->cm_flags & MFI_CMD_DATAIN) { 1515 dir |= BUS_DMASYNC_PREREAD; 1516 hdr->flags |= MFI_FRAME_DIR_READ; 1517 } 1518 if (cm->cm_flags & MFI_CMD_DATAOUT) { 1519 dir |= BUS_DMASYNC_PREWRITE; 1520 hdr->flags |= MFI_FRAME_DIR_WRITE; 1521 } 1522 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1523 cm->cm_flags |= MFI_CMD_MAPPED; 1524 1525 /* 1526 * Instead of calculating the total number of frames in the 1527 * compound frame, it's already assumed that there will be at 1528 * least 1 frame, so don't compensate for the modulo of the 1529 * following division. 1530 */ 1531 cm->cm_total_frame_size += (sc->mfi_sge_size * nsegs); 1532 cm->cm_extra_frames = (cm->cm_total_frame_size - 1) / MFI_FRAME_SIZE; 1533 1534 mfi_send_frame(sc, cm); 1535 1536 return; 1537 } 1538 1539 static int 1540 mfi_send_frame(struct mfi_softc *sc, struct mfi_command *cm) 1541 { 1542 struct mfi_frame_header *hdr; 1543 int tm = MFI_POLL_TIMEOUT_SECS * 1000; 1544 1545 hdr = &cm->cm_frame->header; 1546 1547 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) { 1548 cm->cm_timestamp = time_uptime; 1549 mfi_enqueue_busy(cm); 1550 } else { 1551 hdr->cmd_status = 0xff; 1552 hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; 1553 } 1554 1555 /* 1556 * The bus address of the command is aligned on a 64 byte boundary, 1557 * leaving the least 6 bits as zero. For whatever reason, the 1558 * hardware wants the address shifted right by three, leaving just 1559 * 3 zero bits. These three bits are then used as a prefetching 1560 * hint for the hardware to predict how many frames need to be 1561 * fetched across the bus. If a command has more than 8 frames 1562 * then the 3 bits are set to 0x7 and the firmware uses other 1563 * information in the command to determine the total amount to fetch. 1564 * However, FreeBSD doesn't support I/O larger than 128K, so 8 frames 1565 * is enough for both 32bit and 64bit systems. 1566 */ 1567 if (cm->cm_extra_frames > 7) 1568 cm->cm_extra_frames = 7; 1569 1570 sc->mfi_issue_cmd(sc,cm->cm_frame_busaddr,cm->cm_extra_frames); 1571 1572 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) 1573 return (0); 1574 1575 /* This is a polled command, so busy-wait for it to complete. */ 1576 while (hdr->cmd_status == 0xff) { 1577 DELAY(1000); 1578 tm -= 1; 1579 if (tm <= 0) 1580 break; 1581 } 1582 1583 if (hdr->cmd_status == 0xff) { 1584 device_printf(sc->mfi_dev, "Frame %p timed out " 1585 "command 0x%X\n", hdr, cm->cm_frame->dcmd.opcode); 1586 return (ETIMEDOUT); 1587 } 1588 1589 return (0); 1590 } 1591 1592 static void 1593 mfi_complete(struct mfi_softc *sc, struct mfi_command *cm) 1594 { 1595 int dir; 1596 1597 if ((cm->cm_flags & MFI_CMD_MAPPED) != 0) { 1598 dir = 0; 1599 if (cm->cm_flags & MFI_CMD_DATAIN) 1600 dir |= BUS_DMASYNC_POSTREAD; 1601 if (cm->cm_flags & MFI_CMD_DATAOUT) 1602 dir |= BUS_DMASYNC_POSTWRITE; 1603 1604 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1605 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1606 cm->cm_flags &= ~MFI_CMD_MAPPED; 1607 } 1608 1609 cm->cm_flags |= MFI_CMD_COMPLETED; 1610 1611 if (cm->cm_complete != NULL) 1612 cm->cm_complete(cm); 1613 else 1614 wakeup(cm); 1615 } 1616 1617 static int 1618 mfi_abort(struct mfi_softc *sc, struct mfi_command *cm_abort) 1619 { 1620 struct mfi_command *cm; 1621 struct mfi_abort_frame *abort; 1622 int i = 0; 1623 1624 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1625 1626 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1627 return (EBUSY); 1628 } 1629 1630 abort = &cm->cm_frame->abort; 1631 abort->header.cmd = MFI_CMD_ABORT; 1632 abort->header.flags = 0; 1633 abort->abort_context = cm_abort->cm_frame->header.context; 1634 abort->abort_mfi_addr_lo = cm_abort->cm_frame_busaddr; 1635 abort->abort_mfi_addr_hi = 0; 1636 cm->cm_data = NULL; 1637 cm->cm_flags = MFI_CMD_POLLED; 1638 1639 sc->mfi_aen_cm->cm_aen_abort = 1; 1640 mfi_mapcmd(sc, cm); 1641 mfi_release_command(cm); 1642 1643 while (i < 5 && sc->mfi_aen_cm != NULL) { 1644 msleep(&sc->mfi_aen_cm, &sc->mfi_io_lock, 0, "mfiabort", 5 * hz); 1645 i++; 1646 } 1647 1648 return (0); 1649 } 1650 1651 int 1652 mfi_dump_blocks(struct mfi_softc *sc, int id, uint64_t lba, void *virt, int len) 1653 { 1654 struct mfi_command *cm; 1655 struct mfi_io_frame *io; 1656 int error; 1657 1658 if ((cm = mfi_dequeue_free(sc)) == NULL) 1659 return (EBUSY); 1660 1661 io = &cm->cm_frame->io; 1662 io->header.cmd = MFI_CMD_LD_WRITE; 1663 io->header.target_id = id; 1664 io->header.timeout = 0; 1665 io->header.flags = 0; 1666 io->header.sense_len = MFI_SENSE_LEN; 1667 io->header.data_len = (len + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1668 io->sense_addr_lo = cm->cm_sense_busaddr; 1669 io->sense_addr_hi = 0; 1670 io->lba_hi = (lba & 0xffffffff00000000) >> 32; 1671 io->lba_lo = lba & 0xffffffff; 1672 cm->cm_data = virt; 1673 cm->cm_len = len; 1674 cm->cm_sg = &io->sgl; 1675 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1676 cm->cm_flags = MFI_CMD_POLLED | MFI_CMD_DATAOUT; 1677 1678 error = mfi_mapcmd(sc, cm); 1679 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1680 BUS_DMASYNC_POSTWRITE); 1681 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1682 mfi_release_command(cm); 1683 1684 return (error); 1685 } 1686 1687 static int 1688 mfi_open(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1689 { 1690 struct mfi_softc *sc; 1691 int error; 1692 1693 sc = dev->si_drv1; 1694 1695 mtx_lock(&sc->mfi_io_lock); 1696 if (sc->mfi_detaching) 1697 error = ENXIO; 1698 else { 1699 sc->mfi_flags |= MFI_FLAGS_OPEN; 1700 error = 0; 1701 } 1702 mtx_unlock(&sc->mfi_io_lock); 1703 1704 return (error); 1705 } 1706 1707 static int 1708 mfi_close(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1709 { 1710 struct mfi_softc *sc; 1711 struct mfi_aen *mfi_aen_entry, *tmp; 1712 1713 sc = dev->si_drv1; 1714 1715 mtx_lock(&sc->mfi_io_lock); 1716 sc->mfi_flags &= ~MFI_FLAGS_OPEN; 1717 1718 TAILQ_FOREACH_SAFE(mfi_aen_entry, &sc->mfi_aen_pids, aen_link, tmp) { 1719 if (mfi_aen_entry->p == curproc) { 1720 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 1721 aen_link); 1722 free(mfi_aen_entry, M_MFIBUF); 1723 } 1724 } 1725 mtx_unlock(&sc->mfi_io_lock); 1726 return (0); 1727 } 1728 1729 static int 1730 mfi_config_lock(struct mfi_softc *sc, uint32_t opcode) 1731 { 1732 1733 switch (opcode) { 1734 case MFI_DCMD_LD_DELETE: 1735 case MFI_DCMD_CFG_ADD: 1736 case MFI_DCMD_CFG_CLEAR: 1737 sx_xlock(&sc->mfi_config_lock); 1738 return (1); 1739 default: 1740 return (0); 1741 } 1742 } 1743 1744 static void 1745 mfi_config_unlock(struct mfi_softc *sc, int locked) 1746 { 1747 1748 if (locked) 1749 sx_xunlock(&sc->mfi_config_lock); 1750 } 1751 1752 /* Perform pre-issue checks on commands from userland and possibly veto them. */ 1753 static int 1754 mfi_check_command_pre(struct mfi_softc *sc, struct mfi_command *cm) 1755 { 1756 struct mfi_disk *ld, *ld2; 1757 int error; 1758 1759 mtx_assert(&sc->mfi_io_lock, MA_OWNED); 1760 error = 0; 1761 switch (cm->cm_frame->dcmd.opcode) { 1762 case MFI_DCMD_LD_DELETE: 1763 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1764 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1765 break; 1766 } 1767 if (ld == NULL) 1768 error = ENOENT; 1769 else 1770 error = mfi_disk_disable(ld); 1771 break; 1772 case MFI_DCMD_CFG_CLEAR: 1773 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1774 error = mfi_disk_disable(ld); 1775 if (error) 1776 break; 1777 } 1778 if (error) { 1779 TAILQ_FOREACH(ld2, &sc->mfi_ld_tqh, ld_link) { 1780 if (ld2 == ld) 1781 break; 1782 mfi_disk_enable(ld2); 1783 } 1784 } 1785 break; 1786 default: 1787 break; 1788 } 1789 return (error); 1790 } 1791 1792 /* Perform post-issue checks on commands from userland. */ 1793 static void 1794 mfi_check_command_post(struct mfi_softc *sc, struct mfi_command *cm) 1795 { 1796 struct mfi_disk *ld, *ldn; 1797 1798 switch (cm->cm_frame->dcmd.opcode) { 1799 case MFI_DCMD_LD_DELETE: 1800 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1801 if (ld->ld_id == cm->cm_frame->dcmd.mbox[0]) 1802 break; 1803 } 1804 KASSERT(ld != NULL, ("volume dissappeared")); 1805 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 1806 mtx_unlock(&sc->mfi_io_lock); 1807 mtx_lock(&Giant); 1808 device_delete_child(sc->mfi_dev, ld->ld_dev); 1809 mtx_unlock(&Giant); 1810 mtx_lock(&sc->mfi_io_lock); 1811 } else 1812 mfi_disk_enable(ld); 1813 break; 1814 case MFI_DCMD_CFG_CLEAR: 1815 if (cm->cm_frame->header.cmd_status == MFI_STAT_OK) { 1816 mtx_unlock(&sc->mfi_io_lock); 1817 mtx_lock(&Giant); 1818 TAILQ_FOREACH_SAFE(ld, &sc->mfi_ld_tqh, ld_link, ldn) { 1819 device_delete_child(sc->mfi_dev, ld->ld_dev); 1820 } 1821 mtx_unlock(&Giant); 1822 mtx_lock(&sc->mfi_io_lock); 1823 } else { 1824 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) 1825 mfi_disk_enable(ld); 1826 } 1827 break; 1828 case MFI_DCMD_CFG_ADD: 1829 mfi_ldprobe(sc); 1830 break; 1831 case MFI_DCMD_CFG_FOREIGN_IMPORT: 1832 mfi_ldprobe(sc); 1833 break; 1834 } 1835 } 1836 1837 static int 1838 mfi_user_command(struct mfi_softc *sc, struct mfi_ioc_passthru *ioc) 1839 { 1840 struct mfi_command *cm; 1841 struct mfi_dcmd_frame *dcmd; 1842 void *ioc_buf = NULL; 1843 uint32_t context; 1844 int error = 0, locked; 1845 1846 1847 if (ioc->buf_size > 0) { 1848 ioc_buf = malloc(ioc->buf_size, M_MFIBUF, M_WAITOK); 1849 if (ioc_buf == NULL) { 1850 return (ENOMEM); 1851 } 1852 error = copyin(ioc->buf, ioc_buf, ioc->buf_size); 1853 if (error) { 1854 device_printf(sc->mfi_dev, "failed to copyin\n"); 1855 free(ioc_buf, M_MFIBUF); 1856 return (error); 1857 } 1858 } 1859 1860 locked = mfi_config_lock(sc, ioc->ioc_frame.opcode); 1861 1862 mtx_lock(&sc->mfi_io_lock); 1863 while ((cm = mfi_dequeue_free(sc)) == NULL) 1864 msleep(mfi_user_command, &sc->mfi_io_lock, 0, "mfiioc", hz); 1865 1866 /* Save context for later */ 1867 context = cm->cm_frame->header.context; 1868 1869 dcmd = &cm->cm_frame->dcmd; 1870 bcopy(&ioc->ioc_frame, dcmd, sizeof(struct mfi_dcmd_frame)); 1871 1872 cm->cm_sg = &dcmd->sgl; 1873 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 1874 cm->cm_data = ioc_buf; 1875 cm->cm_len = ioc->buf_size; 1876 1877 /* restore context */ 1878 cm->cm_frame->header.context = context; 1879 1880 /* Cheat since we don't know if we're writing or reading */ 1881 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 1882 1883 error = mfi_check_command_pre(sc, cm); 1884 if (error) 1885 goto out; 1886 1887 error = mfi_wait_command(sc, cm); 1888 if (error) { 1889 device_printf(sc->mfi_dev, "ioctl failed %d\n", error); 1890 goto out; 1891 } 1892 bcopy(dcmd, &ioc->ioc_frame, sizeof(struct mfi_dcmd_frame)); 1893 mfi_check_command_post(sc, cm); 1894 out: 1895 mfi_release_command(cm); 1896 mtx_unlock(&sc->mfi_io_lock); 1897 mfi_config_unlock(sc, locked); 1898 if (ioc->buf_size > 0) 1899 error = copyout(ioc_buf, ioc->buf, ioc->buf_size); 1900 if (ioc_buf) 1901 free(ioc_buf, M_MFIBUF); 1902 return (error); 1903 } 1904 1905 #ifdef __amd64__ 1906 #define PTRIN(p) ((void *)(uintptr_t)(p)) 1907 #else 1908 #define PTRIN(p) (p) 1909 #endif 1910 1911 static int 1912 mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 1913 { 1914 struct mfi_softc *sc; 1915 union mfi_statrequest *ms; 1916 struct mfi_ioc_packet *ioc; 1917 #ifdef __amd64__ 1918 struct mfi_ioc_packet32 *ioc32; 1919 #endif 1920 struct mfi_ioc_aen *aen; 1921 struct mfi_command *cm = NULL; 1922 uint32_t context; 1923 union mfi_sense_ptr sense_ptr; 1924 uint8_t *data = NULL, *temp; 1925 int i; 1926 struct mfi_ioc_passthru *iop = (struct mfi_ioc_passthru *)arg; 1927 #ifdef __amd64__ 1928 struct mfi_ioc_passthru32 *iop32 = (struct mfi_ioc_passthru32 *)arg; 1929 struct mfi_ioc_passthru iop_swab; 1930 #endif 1931 int error, locked; 1932 1933 sc = dev->si_drv1; 1934 error = 0; 1935 1936 switch (cmd) { 1937 case MFIIO_STATS: 1938 ms = (union mfi_statrequest *)arg; 1939 switch (ms->ms_item) { 1940 case MFIQ_FREE: 1941 case MFIQ_BIO: 1942 case MFIQ_READY: 1943 case MFIQ_BUSY: 1944 bcopy(&sc->mfi_qstat[ms->ms_item], &ms->ms_qstat, 1945 sizeof(struct mfi_qstat)); 1946 break; 1947 default: 1948 error = ENOIOCTL; 1949 break; 1950 } 1951 break; 1952 case MFIIO_QUERY_DISK: 1953 { 1954 struct mfi_query_disk *qd; 1955 struct mfi_disk *ld; 1956 1957 qd = (struct mfi_query_disk *)arg; 1958 mtx_lock(&sc->mfi_io_lock); 1959 TAILQ_FOREACH(ld, &sc->mfi_ld_tqh, ld_link) { 1960 if (ld->ld_id == qd->array_id) 1961 break; 1962 } 1963 if (ld == NULL) { 1964 qd->present = 0; 1965 mtx_unlock(&sc->mfi_io_lock); 1966 return (0); 1967 } 1968 qd->present = 1; 1969 if (ld->ld_flags & MFI_DISK_FLAGS_OPEN) 1970 qd->open = 1; 1971 bzero(qd->devname, SPECNAMELEN + 1); 1972 snprintf(qd->devname, SPECNAMELEN, "mfid%d", ld->ld_unit); 1973 mtx_unlock(&sc->mfi_io_lock); 1974 break; 1975 } 1976 case MFI_CMD: 1977 #ifdef __amd64__ 1978 case MFI_CMD32: 1979 #endif 1980 { 1981 devclass_t devclass; 1982 ioc = (struct mfi_ioc_packet *)arg; 1983 int adapter; 1984 1985 adapter = ioc->mfi_adapter_no; 1986 if (device_get_unit(sc->mfi_dev) == 0 && adapter != 0) { 1987 devclass = devclass_find("mfi"); 1988 sc = devclass_get_softc(devclass, adapter); 1989 } 1990 mtx_lock(&sc->mfi_io_lock); 1991 if ((cm = mfi_dequeue_free(sc)) == NULL) { 1992 mtx_unlock(&sc->mfi_io_lock); 1993 return (EBUSY); 1994 } 1995 mtx_unlock(&sc->mfi_io_lock); 1996 locked = 0; 1997 1998 /* 1999 * save off original context since copying from user 2000 * will clobber some data 2001 */ 2002 context = cm->cm_frame->header.context; 2003 2004 bcopy(ioc->mfi_frame.raw, cm->cm_frame, 2005 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2006 cm->cm_total_frame_size = (sizeof(union mfi_sgl) 2007 * ioc->mfi_sge_count) + ioc->mfi_sgl_off; 2008 if (ioc->mfi_sge_count) { 2009 cm->cm_sg = 2010 (union mfi_sgl *)&cm->cm_frame->bytes[ioc->mfi_sgl_off]; 2011 } 2012 cm->cm_flags = 0; 2013 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2014 cm->cm_flags |= MFI_CMD_DATAIN; 2015 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2016 cm->cm_flags |= MFI_CMD_DATAOUT; 2017 /* Legacy app shim */ 2018 if (cm->cm_flags == 0) 2019 cm->cm_flags |= MFI_CMD_DATAIN | MFI_CMD_DATAOUT; 2020 cm->cm_len = cm->cm_frame->header.data_len; 2021 if (cm->cm_len && 2022 (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT))) { 2023 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2024 M_WAITOK | M_ZERO); 2025 if (cm->cm_data == NULL) { 2026 device_printf(sc->mfi_dev, "Malloc failed\n"); 2027 goto out; 2028 } 2029 } else { 2030 cm->cm_data = 0; 2031 } 2032 2033 /* restore header context */ 2034 cm->cm_frame->header.context = context; 2035 2036 temp = data; 2037 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2038 for (i = 0; i < ioc->mfi_sge_count; i++) { 2039 #ifdef __amd64__ 2040 if (cmd == MFI_CMD) { 2041 /* Native */ 2042 error = copyin(ioc->mfi_sgl[i].iov_base, 2043 temp, 2044 ioc->mfi_sgl[i].iov_len); 2045 } else { 2046 void *temp_convert; 2047 /* 32bit */ 2048 ioc32 = (struct mfi_ioc_packet32 *)ioc; 2049 temp_convert = 2050 PTRIN(ioc32->mfi_sgl[i].iov_base); 2051 error = copyin(temp_convert, 2052 temp, 2053 ioc32->mfi_sgl[i].iov_len); 2054 } 2055 #else 2056 error = copyin(ioc->mfi_sgl[i].iov_base, 2057 temp, 2058 ioc->mfi_sgl[i].iov_len); 2059 #endif 2060 if (error != 0) { 2061 device_printf(sc->mfi_dev, 2062 "Copy in failed\n"); 2063 goto out; 2064 } 2065 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2066 } 2067 } 2068 2069 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2070 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2071 2072 if (cm->cm_frame->header.cmd == MFI_CMD_PD_SCSI_IO) { 2073 cm->cm_frame->pass.sense_addr_lo = cm->cm_sense_busaddr; 2074 cm->cm_frame->pass.sense_addr_hi = 0; 2075 } 2076 2077 mtx_lock(&sc->mfi_io_lock); 2078 error = mfi_check_command_pre(sc, cm); 2079 if (error) { 2080 mtx_unlock(&sc->mfi_io_lock); 2081 goto out; 2082 } 2083 2084 if ((error = mfi_wait_command(sc, cm)) != 0) { 2085 device_printf(sc->mfi_dev, 2086 "Controller polled failed\n"); 2087 mtx_unlock(&sc->mfi_io_lock); 2088 goto out; 2089 } 2090 2091 mfi_check_command_post(sc, cm); 2092 mtx_unlock(&sc->mfi_io_lock); 2093 2094 temp = data; 2095 if (cm->cm_flags & MFI_CMD_DATAIN) { 2096 for (i = 0; i < ioc->mfi_sge_count; i++) { 2097 #ifdef __amd64__ 2098 if (cmd == MFI_CMD) { 2099 /* Native */ 2100 error = copyout(temp, 2101 ioc->mfi_sgl[i].iov_base, 2102 ioc->mfi_sgl[i].iov_len); 2103 } else { 2104 void *temp_convert; 2105 /* 32bit */ 2106 ioc32 = (struct mfi_ioc_packet32 *)ioc; 2107 temp_convert = 2108 PTRIN(ioc32->mfi_sgl[i].iov_base); 2109 error = copyout(temp, 2110 temp_convert, 2111 ioc32->mfi_sgl[i].iov_len); 2112 } 2113 #else 2114 error = copyout(temp, 2115 ioc->mfi_sgl[i].iov_base, 2116 ioc->mfi_sgl[i].iov_len); 2117 #endif 2118 if (error != 0) { 2119 device_printf(sc->mfi_dev, 2120 "Copy out failed\n"); 2121 goto out; 2122 } 2123 temp = &temp[ioc->mfi_sgl[i].iov_len]; 2124 } 2125 } 2126 2127 if (ioc->mfi_sense_len) { 2128 /* get user-space sense ptr then copy out sense */ 2129 bcopy(&((struct mfi_ioc_packet*)arg) 2130 ->mfi_frame.raw[ioc->mfi_sense_off], 2131 &sense_ptr.sense_ptr_data[0], 2132 sizeof(sense_ptr.sense_ptr_data)); 2133 #ifdef __amd64__ 2134 if (cmd != MFI_CMD) { 2135 /* 2136 * not 64bit native so zero out any address 2137 * over 32bit */ 2138 sense_ptr.addr.high = 0; 2139 } 2140 #endif 2141 error = copyout(cm->cm_sense, sense_ptr.user_space, 2142 ioc->mfi_sense_len); 2143 if (error != 0) { 2144 device_printf(sc->mfi_dev, 2145 "Copy out failed\n"); 2146 goto out; 2147 } 2148 } 2149 2150 ioc->mfi_frame.hdr.cmd_status = cm->cm_frame->header.cmd_status; 2151 out: 2152 mfi_config_unlock(sc, locked); 2153 if (data) 2154 free(data, M_MFIBUF); 2155 if (cm) { 2156 mtx_lock(&sc->mfi_io_lock); 2157 mfi_release_command(cm); 2158 mtx_unlock(&sc->mfi_io_lock); 2159 } 2160 2161 break; 2162 } 2163 case MFI_SET_AEN: 2164 aen = (struct mfi_ioc_aen *)arg; 2165 error = mfi_aen_register(sc, aen->aen_seq_num, 2166 aen->aen_class_locale); 2167 2168 break; 2169 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2170 { 2171 devclass_t devclass; 2172 struct mfi_linux_ioc_packet l_ioc; 2173 int adapter; 2174 2175 devclass = devclass_find("mfi"); 2176 if (devclass == NULL) 2177 return (ENOENT); 2178 2179 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2180 if (error) 2181 return (error); 2182 adapter = l_ioc.lioc_adapter_no; 2183 sc = devclass_get_softc(devclass, adapter); 2184 if (sc == NULL) 2185 return (ENOENT); 2186 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2187 cmd, arg, flag, td)); 2188 break; 2189 } 2190 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2191 { 2192 devclass_t devclass; 2193 struct mfi_linux_ioc_aen l_aen; 2194 int adapter; 2195 2196 devclass = devclass_find("mfi"); 2197 if (devclass == NULL) 2198 return (ENOENT); 2199 2200 error = copyin(arg, &l_aen, sizeof(l_aen)); 2201 if (error) 2202 return (error); 2203 adapter = l_aen.laen_adapter_no; 2204 sc = devclass_get_softc(devclass, adapter); 2205 if (sc == NULL) 2206 return (ENOENT); 2207 return (mfi_linux_ioctl_int(sc->mfi_cdev, 2208 cmd, arg, flag, td)); 2209 break; 2210 } 2211 #ifdef __amd64__ 2212 case MFIIO_PASSTHRU32: 2213 iop_swab.ioc_frame = iop32->ioc_frame; 2214 iop_swab.buf_size = iop32->buf_size; 2215 iop_swab.buf = PTRIN(iop32->buf); 2216 iop = &iop_swab; 2217 /* FALLTHROUGH */ 2218 #endif 2219 case MFIIO_PASSTHRU: 2220 error = mfi_user_command(sc, iop); 2221 #ifdef __amd64__ 2222 if (cmd == MFIIO_PASSTHRU32) 2223 iop32->ioc_frame = iop_swab.ioc_frame; 2224 #endif 2225 break; 2226 } 2227 2228 return (error); 2229 } 2230 2231 static int 2232 mfi_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2233 { 2234 struct mfi_softc *sc; 2235 struct mfi_linux_ioc_packet l_ioc; 2236 struct mfi_linux_ioc_aen l_aen; 2237 struct mfi_command *cm = NULL; 2238 struct mfi_aen *mfi_aen_entry; 2239 union mfi_sense_ptr sense_ptr; 2240 uint32_t context; 2241 uint8_t *data = NULL, *temp; 2242 int i; 2243 int error, locked; 2244 2245 sc = dev->si_drv1; 2246 error = 0; 2247 switch (cmd) { 2248 case MFI_LINUX_CMD_2: /* Firmware Linux ioctl shim */ 2249 error = copyin(arg, &l_ioc, sizeof(l_ioc)); 2250 if (error != 0) 2251 return (error); 2252 2253 if (l_ioc.lioc_sge_count > MAX_LINUX_IOCTL_SGE) { 2254 return (EINVAL); 2255 } 2256 2257 mtx_lock(&sc->mfi_io_lock); 2258 if ((cm = mfi_dequeue_free(sc)) == NULL) { 2259 mtx_unlock(&sc->mfi_io_lock); 2260 return (EBUSY); 2261 } 2262 mtx_unlock(&sc->mfi_io_lock); 2263 locked = 0; 2264 2265 /* 2266 * save off original context since copying from user 2267 * will clobber some data 2268 */ 2269 context = cm->cm_frame->header.context; 2270 2271 bcopy(l_ioc.lioc_frame.raw, cm->cm_frame, 2272 2 * MFI_DCMD_FRAME_SIZE); /* this isn't quite right */ 2273 cm->cm_total_frame_size = (sizeof(union mfi_sgl) 2274 * l_ioc.lioc_sge_count) + l_ioc.lioc_sgl_off; 2275 if (l_ioc.lioc_sge_count) 2276 cm->cm_sg = 2277 (union mfi_sgl *)&cm->cm_frame->bytes[l_ioc.lioc_sgl_off]; 2278 cm->cm_flags = 0; 2279 if (cm->cm_frame->header.flags & MFI_FRAME_DATAIN) 2280 cm->cm_flags |= MFI_CMD_DATAIN; 2281 if (cm->cm_frame->header.flags & MFI_FRAME_DATAOUT) 2282 cm->cm_flags |= MFI_CMD_DATAOUT; 2283 cm->cm_len = cm->cm_frame->header.data_len; 2284 if (cm->cm_len && 2285 (cm->cm_flags & (MFI_CMD_DATAIN | MFI_CMD_DATAOUT))) { 2286 cm->cm_data = data = malloc(cm->cm_len, M_MFIBUF, 2287 M_WAITOK | M_ZERO); 2288 if (cm->cm_data == NULL) { 2289 device_printf(sc->mfi_dev, "Malloc failed\n"); 2290 goto out; 2291 } 2292 } else { 2293 cm->cm_data = 0; 2294 } 2295 2296 /* restore header context */ 2297 cm->cm_frame->header.context = context; 2298 2299 temp = data; 2300 if (cm->cm_flags & MFI_CMD_DATAOUT) { 2301 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2302 error = copyin(PTRIN(l_ioc.lioc_sgl[i].iov_base), 2303 temp, 2304 l_ioc.lioc_sgl[i].iov_len); 2305 if (error != 0) { 2306 device_printf(sc->mfi_dev, 2307 "Copy in failed\n"); 2308 goto out; 2309 } 2310 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2311 } 2312 } 2313 2314 if (cm->cm_frame->header.cmd == MFI_CMD_DCMD) 2315 locked = mfi_config_lock(sc, cm->cm_frame->dcmd.opcode); 2316 2317 if (cm->cm_frame->header.cmd == MFI_CMD_PD_SCSI_IO) { 2318 cm->cm_frame->pass.sense_addr_lo = cm->cm_sense_busaddr; 2319 cm->cm_frame->pass.sense_addr_hi = 0; 2320 } 2321 2322 mtx_lock(&sc->mfi_io_lock); 2323 error = mfi_check_command_pre(sc, cm); 2324 if (error) { 2325 mtx_unlock(&sc->mfi_io_lock); 2326 goto out; 2327 } 2328 2329 if ((error = mfi_wait_command(sc, cm)) != 0) { 2330 device_printf(sc->mfi_dev, 2331 "Controller polled failed\n"); 2332 mtx_unlock(&sc->mfi_io_lock); 2333 goto out; 2334 } 2335 2336 mfi_check_command_post(sc, cm); 2337 mtx_unlock(&sc->mfi_io_lock); 2338 2339 temp = data; 2340 if (cm->cm_flags & MFI_CMD_DATAIN) { 2341 for (i = 0; i < l_ioc.lioc_sge_count; i++) { 2342 error = copyout(temp, 2343 PTRIN(l_ioc.lioc_sgl[i].iov_base), 2344 l_ioc.lioc_sgl[i].iov_len); 2345 if (error != 0) { 2346 device_printf(sc->mfi_dev, 2347 "Copy out failed\n"); 2348 goto out; 2349 } 2350 temp = &temp[l_ioc.lioc_sgl[i].iov_len]; 2351 } 2352 } 2353 2354 if (l_ioc.lioc_sense_len) { 2355 /* get user-space sense ptr then copy out sense */ 2356 bcopy(&((struct mfi_linux_ioc_packet*)arg) 2357 ->lioc_frame.raw[l_ioc.lioc_sense_off], 2358 &sense_ptr.sense_ptr_data[0], 2359 sizeof(sense_ptr.sense_ptr_data)); 2360 #ifdef __amd64__ 2361 /* 2362 * only 32bit Linux support so zero out any 2363 * address over 32bit 2364 */ 2365 sense_ptr.addr.high = 0; 2366 #endif 2367 error = copyout(cm->cm_sense, sense_ptr.user_space, 2368 l_ioc.lioc_sense_len); 2369 if (error != 0) { 2370 device_printf(sc->mfi_dev, 2371 "Copy out failed\n"); 2372 goto out; 2373 } 2374 } 2375 2376 error = copyout(&cm->cm_frame->header.cmd_status, 2377 &((struct mfi_linux_ioc_packet*)arg) 2378 ->lioc_frame.hdr.cmd_status, 2379 1); 2380 if (error != 0) { 2381 device_printf(sc->mfi_dev, 2382 "Copy out failed\n"); 2383 goto out; 2384 } 2385 2386 out: 2387 mfi_config_unlock(sc, locked); 2388 if (data) 2389 free(data, M_MFIBUF); 2390 if (cm) { 2391 mtx_lock(&sc->mfi_io_lock); 2392 mfi_release_command(cm); 2393 mtx_unlock(&sc->mfi_io_lock); 2394 } 2395 2396 return (error); 2397 case MFI_LINUX_SET_AEN_2: /* AEN Linux ioctl shim */ 2398 error = copyin(arg, &l_aen, sizeof(l_aen)); 2399 if (error != 0) 2400 return (error); 2401 printf("AEN IMPLEMENTED for pid %d\n", curproc->p_pid); 2402 mfi_aen_entry = malloc(sizeof(struct mfi_aen), M_MFIBUF, 2403 M_WAITOK); 2404 mtx_lock(&sc->mfi_io_lock); 2405 if (mfi_aen_entry != NULL) { 2406 mfi_aen_entry->p = curproc; 2407 TAILQ_INSERT_TAIL(&sc->mfi_aen_pids, mfi_aen_entry, 2408 aen_link); 2409 } 2410 error = mfi_aen_register(sc, l_aen.laen_seq_num, 2411 l_aen.laen_class_locale); 2412 2413 if (error != 0) { 2414 TAILQ_REMOVE(&sc->mfi_aen_pids, mfi_aen_entry, 2415 aen_link); 2416 free(mfi_aen_entry, M_MFIBUF); 2417 } 2418 mtx_unlock(&sc->mfi_io_lock); 2419 2420 return (error); 2421 default: 2422 device_printf(sc->mfi_dev, "IOCTL 0x%lx not handled\n", cmd); 2423 error = ENOENT; 2424 break; 2425 } 2426 2427 return (error); 2428 } 2429 2430 static int 2431 mfi_poll(struct cdev *dev, int poll_events, struct thread *td) 2432 { 2433 struct mfi_softc *sc; 2434 int revents = 0; 2435 2436 sc = dev->si_drv1; 2437 2438 if (poll_events & (POLLIN | POLLRDNORM)) { 2439 if (sc->mfi_aen_triggered != 0) { 2440 revents |= poll_events & (POLLIN | POLLRDNORM); 2441 sc->mfi_aen_triggered = 0; 2442 } 2443 if (sc->mfi_aen_triggered == 0 && sc->mfi_aen_cm == NULL) { 2444 revents |= POLLERR; 2445 } 2446 } 2447 2448 if (revents == 0) { 2449 if (poll_events & (POLLIN | POLLRDNORM)) { 2450 sc->mfi_poll_waiting = 1; 2451 selrecord(td, &sc->mfi_select); 2452 } 2453 } 2454 2455 return revents; 2456 } 2457 2458 2459 static void 2460 mfi_dump_all(void) 2461 { 2462 struct mfi_softc *sc; 2463 struct mfi_command *cm; 2464 devclass_t dc; 2465 time_t deadline; 2466 int timedout; 2467 int i; 2468 2469 dc = devclass_find("mfi"); 2470 if (dc == NULL) { 2471 printf("No mfi dev class\n"); 2472 return; 2473 } 2474 2475 for (i = 0; ; i++) { 2476 sc = devclass_get_softc(dc, i); 2477 if (sc == NULL) 2478 break; 2479 device_printf(sc->mfi_dev, "Dumping\n\n"); 2480 timedout = 0; 2481 deadline = time_uptime - MFI_CMD_TIMEOUT; 2482 mtx_lock(&sc->mfi_io_lock); 2483 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2484 if (cm->cm_timestamp < deadline) { 2485 device_printf(sc->mfi_dev, 2486 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2487 (int)(time_uptime - cm->cm_timestamp)); 2488 MFI_PRINT_CMD(cm); 2489 timedout++; 2490 } 2491 } 2492 2493 #if 0 2494 if (timedout) 2495 MFI_DUMP_CMDS(SC); 2496 #endif 2497 2498 mtx_unlock(&sc->mfi_io_lock); 2499 } 2500 2501 return; 2502 } 2503 2504 static void 2505 mfi_timeout(void *data) 2506 { 2507 struct mfi_softc *sc = (struct mfi_softc *)data; 2508 struct mfi_command *cm; 2509 time_t deadline; 2510 int timedout = 0; 2511 2512 deadline = time_uptime - MFI_CMD_TIMEOUT; 2513 mtx_lock(&sc->mfi_io_lock); 2514 TAILQ_FOREACH(cm, &sc->mfi_busy, cm_link) { 2515 if (sc->mfi_aen_cm == cm) 2516 continue; 2517 if ((sc->mfi_aen_cm != cm) && (cm->cm_timestamp < deadline)) { 2518 device_printf(sc->mfi_dev, 2519 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, 2520 (int)(time_uptime - cm->cm_timestamp)); 2521 MFI_PRINT_CMD(cm); 2522 MFI_VALIDATE_CMD(sc, cm); 2523 timedout++; 2524 } 2525 } 2526 2527 #if 0 2528 if (timedout) 2529 MFI_DUMP_CMDS(SC); 2530 #endif 2531 2532 mtx_unlock(&sc->mfi_io_lock); 2533 2534 callout_reset(&sc->mfi_watchdog_callout, MFI_CMD_TIMEOUT * hz, 2535 mfi_timeout, sc); 2536 2537 if (0) 2538 mfi_dump_all(); 2539 return; 2540 }
Cache object: bdf0e0d7127fd2aeb8ce60d2618687d7
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