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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 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD: releng/6.1/sys/dev/mfi/mfi.c 157460 2006-04-04 03:24:49Z scottl $"); 29 30 #include "opt_mfi.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/malloc.h> 35 #include <sys/kernel.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 #include <sys/eventhandler.h> 39 #include <sys/rman.h> 40 #include <sys/bus_dma.h> 41 #include <sys/bio.h> 42 #include <sys/ioccom.h> 43 44 #include <machine/bus.h> 45 #include <machine/resource.h> 46 47 #include <dev/mfi/mfireg.h> 48 #include <dev/mfi/mfi_ioctl.h> 49 #include <dev/mfi/mfivar.h> 50 51 static int mfi_alloc_commands(struct mfi_softc *); 52 static void mfi_release_command(struct mfi_command *cm); 53 static int mfi_comms_init(struct mfi_softc *); 54 static int mfi_polled_command(struct mfi_softc *, struct mfi_command *); 55 static int mfi_get_controller_info(struct mfi_softc *); 56 static void mfi_data_cb(void *, bus_dma_segment_t *, int, int); 57 static void mfi_startup(void *arg); 58 static void mfi_intr(void *arg); 59 static void mfi_enable_intr(struct mfi_softc *sc); 60 static void mfi_ldprobe_inq(struct mfi_softc *sc); 61 static void mfi_ldprobe_inq_complete(struct mfi_command *); 62 static int mfi_ldprobe_capacity(struct mfi_softc *sc, int id); 63 static void mfi_ldprobe_capacity_complete(struct mfi_command *); 64 static int mfi_ldprobe_tur(struct mfi_softc *sc, int id); 65 static void mfi_ldprobe_tur_complete(struct mfi_command *); 66 static int mfi_add_ld(struct mfi_softc *sc, int id, uint64_t, uint32_t); 67 static struct mfi_command * mfi_bio_command(struct mfi_softc *); 68 static void mfi_bio_complete(struct mfi_command *); 69 static int mfi_mapcmd(struct mfi_softc *, struct mfi_command *); 70 static int mfi_send_frame(struct mfi_softc *, struct mfi_command *); 71 static void mfi_complete(struct mfi_softc *, struct mfi_command *); 72 73 /* Management interface */ 74 static d_open_t mfi_open; 75 static d_close_t mfi_close; 76 static d_ioctl_t mfi_ioctl; 77 78 static struct cdevsw mfi_cdevsw = { 79 .d_version = D_VERSION, 80 .d_flags = 0, 81 .d_open = mfi_open, 82 .d_close = mfi_close, 83 .d_ioctl = mfi_ioctl, 84 .d_name = "mfi", 85 }; 86 87 MALLOC_DEFINE(M_MFIBUF, "mfibuf", "Buffers for the MFI driver"); 88 89 #define MFI_INQ_LENGTH SHORT_INQUIRY_LENGTH 90 91 static int 92 mfi_transition_firmware(struct mfi_softc *sc) 93 { 94 int32_t fw_state, cur_state; 95 int max_wait, i; 96 97 fw_state = MFI_READ4(sc, MFI_OMSG0) & MFI_FWSTATE_MASK; 98 while (fw_state != MFI_FWSTATE_READY) { 99 if (bootverbose) 100 device_printf(sc->mfi_dev, "Waiting for firmware to " 101 "become ready\n"); 102 cur_state = fw_state; 103 switch (fw_state) { 104 case MFI_FWSTATE_FAULT: 105 device_printf(sc->mfi_dev, "Firmware fault\n"); 106 return (ENXIO); 107 case MFI_FWSTATE_WAIT_HANDSHAKE: 108 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_CLEAR_HANDSHAKE); 109 max_wait = 2; 110 break; 111 case MFI_FWSTATE_OPERATIONAL: 112 MFI_WRITE4(sc, MFI_IDB, MFI_FWINIT_READY); 113 max_wait = 10; 114 break; 115 case MFI_FWSTATE_UNDEFINED: 116 case MFI_FWSTATE_BB_INIT: 117 max_wait = 2; 118 break; 119 case MFI_FWSTATE_FW_INIT: 120 case MFI_FWSTATE_DEVICE_SCAN: 121 case MFI_FWSTATE_FLUSH_CACHE: 122 max_wait = 20; 123 break; 124 default: 125 device_printf(sc->mfi_dev,"Unknown firmware state %d\n", 126 fw_state); 127 return (ENXIO); 128 } 129 for (i = 0; i < (max_wait * 10); i++) { 130 fw_state = MFI_READ4(sc, MFI_OMSG0) & MFI_FWSTATE_MASK; 131 if (fw_state == cur_state) 132 DELAY(100000); 133 else 134 break; 135 } 136 if (fw_state == cur_state) { 137 device_printf(sc->mfi_dev, "firmware stuck in state " 138 "%#x\n", fw_state); 139 return (ENXIO); 140 } 141 } 142 return (0); 143 } 144 145 static void 146 mfi_addr32_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 147 { 148 uint32_t *addr; 149 150 addr = arg; 151 *addr = segs[0].ds_addr; 152 } 153 154 int 155 mfi_attach(struct mfi_softc *sc) 156 { 157 uint32_t status; 158 int error, commsz, framessz, sensesz; 159 int frames, unit; 160 161 mtx_init(&sc->mfi_io_lock, "MFI I/O lock", NULL, MTX_DEF); 162 TAILQ_INIT(&sc->mfi_ld_tqh); 163 164 mfi_initq_free(sc); 165 mfi_initq_ready(sc); 166 mfi_initq_busy(sc); 167 mfi_initq_bio(sc); 168 169 /* Before we get too far, see if the firmware is working */ 170 if ((error = mfi_transition_firmware(sc)) != 0) { 171 device_printf(sc->mfi_dev, "Firmware not in READY state, " 172 "error %d\n", error); 173 return (ENXIO); 174 } 175 176 /* 177 * Get information needed for sizing the contiguous memory for the 178 * frame pool. Size down the sgl parameter since we know that 179 * we will never need more than what's required for MAXPHYS. 180 * It would be nice if these constants were available at runtime 181 * instead of compile time. 182 */ 183 status = MFI_READ4(sc, MFI_OMSG0); 184 sc->mfi_max_fw_cmds = status & MFI_FWSTATE_MAXCMD_MASK; 185 sc->mfi_max_fw_sgl = (status & MFI_FWSTATE_MAXSGL_MASK) >> 16; 186 sc->mfi_total_sgl = min(sc->mfi_max_fw_sgl, ((MAXPHYS / PAGE_SIZE) +1)); 187 188 /* 189 * Create the dma tag for data buffers. Used both for block I/O 190 * and for various internal data queries. 191 */ 192 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 193 1, 0, /* algnmnt, boundary */ 194 BUS_SPACE_MAXADDR, /* lowaddr */ 195 BUS_SPACE_MAXADDR, /* highaddr */ 196 NULL, NULL, /* filter, filterarg */ 197 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 198 sc->mfi_total_sgl, /* nsegments */ 199 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 200 BUS_DMA_ALLOCNOW, /* flags */ 201 busdma_lock_mutex, /* lockfunc */ 202 &sc->mfi_io_lock, /* lockfuncarg */ 203 &sc->mfi_buffer_dmat)) { 204 device_printf(sc->mfi_dev, "Cannot allocate buffer DMA tag\n"); 205 return (ENOMEM); 206 } 207 208 /* 209 * Allocate DMA memory for the comms queues. Keep it under 4GB for 210 * efficiency. The mfi_hwcomms struct includes space for 1 reply queue 211 * entry, so the calculated size here will be will be 1 more than 212 * mfi_max_fw_cmds. This is apparently a requirement of the hardware. 213 */ 214 commsz = (sizeof(uint32_t) * sc->mfi_max_fw_cmds) + 215 sizeof(struct mfi_hwcomms); 216 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 217 1, 0, /* algnmnt, boundary */ 218 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 219 BUS_SPACE_MAXADDR, /* highaddr */ 220 NULL, NULL, /* filter, filterarg */ 221 commsz, /* maxsize */ 222 1, /* msegments */ 223 commsz, /* maxsegsize */ 224 0, /* flags */ 225 NULL, NULL, /* lockfunc, lockarg */ 226 &sc->mfi_comms_dmat)) { 227 device_printf(sc->mfi_dev, "Cannot allocate comms DMA tag\n"); 228 return (ENOMEM); 229 } 230 if (bus_dmamem_alloc(sc->mfi_comms_dmat, (void **)&sc->mfi_comms, 231 BUS_DMA_NOWAIT, &sc->mfi_comms_dmamap)) { 232 device_printf(sc->mfi_dev, "Cannot allocate comms memory\n"); 233 return (ENOMEM); 234 } 235 bzero(sc->mfi_comms, commsz); 236 bus_dmamap_load(sc->mfi_comms_dmat, sc->mfi_comms_dmamap, 237 sc->mfi_comms, commsz, mfi_addr32_cb, &sc->mfi_comms_busaddr, 0); 238 239 /* 240 * Allocate DMA memory for the command frames. Keep them in the 241 * lower 4GB for efficiency. Calculate the size of the frames at 242 * the same time; the frame is 64 bytes plus space for the SG lists. 243 * The assumption here is that the SG list will start at the second 244 * 64 byte segment of the frame and not use the unused bytes in the 245 * frame. While this might seem wasteful, apparently the frames must 246 * be 64 byte aligned, so any savings would be negated by the extra 247 * alignment padding. 248 */ 249 if (sizeof(bus_addr_t) == 8) { 250 sc->mfi_sgsize = sizeof(struct mfi_sg64); 251 sc->mfi_flags |= MFI_FLAGS_SG64; 252 } else { 253 sc->mfi_sgsize = sizeof(struct mfi_sg32); 254 } 255 frames = (sc->mfi_sgsize * sc->mfi_total_sgl + MFI_FRAME_SIZE - 1) / 256 MFI_FRAME_SIZE + 1; 257 sc->mfi_frame_size = frames * MFI_FRAME_SIZE; 258 framessz = sc->mfi_frame_size * sc->mfi_max_fw_cmds; 259 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 260 64, 0, /* algnmnt, boundary */ 261 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 262 BUS_SPACE_MAXADDR, /* highaddr */ 263 NULL, NULL, /* filter, filterarg */ 264 framessz, /* maxsize */ 265 1, /* nsegments */ 266 framessz, /* maxsegsize */ 267 0, /* flags */ 268 NULL, NULL, /* lockfunc, lockarg */ 269 &sc->mfi_frames_dmat)) { 270 device_printf(sc->mfi_dev, "Cannot allocate frame DMA tag\n"); 271 return (ENOMEM); 272 } 273 if (bus_dmamem_alloc(sc->mfi_frames_dmat, (void **)&sc->mfi_frames, 274 BUS_DMA_NOWAIT, &sc->mfi_frames_dmamap)) { 275 device_printf(sc->mfi_dev, "Cannot allocate frames memory\n"); 276 return (ENOMEM); 277 } 278 bzero(sc->mfi_frames, framessz); 279 bus_dmamap_load(sc->mfi_frames_dmat, sc->mfi_frames_dmamap, 280 sc->mfi_frames, framessz, mfi_addr32_cb, &sc->mfi_frames_busaddr,0); 281 282 /* 283 * Allocate DMA memory for the frame sense data. Keep them in the 284 * lower 4GB for efficiency 285 */ 286 sensesz = sc->mfi_max_fw_cmds * MFI_SENSE_LEN; 287 if (bus_dma_tag_create( sc->mfi_parent_dmat, /* parent */ 288 4, 0, /* algnmnt, boundary */ 289 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 290 BUS_SPACE_MAXADDR, /* highaddr */ 291 NULL, NULL, /* filter, filterarg */ 292 sensesz, /* maxsize */ 293 1, /* nsegments */ 294 sensesz, /* maxsegsize */ 295 0, /* flags */ 296 NULL, NULL, /* lockfunc, lockarg */ 297 &sc->mfi_sense_dmat)) { 298 device_printf(sc->mfi_dev, "Cannot allocate sense DMA tag\n"); 299 return (ENOMEM); 300 } 301 if (bus_dmamem_alloc(sc->mfi_sense_dmat, (void **)&sc->mfi_sense, 302 BUS_DMA_NOWAIT, &sc->mfi_sense_dmamap)) { 303 device_printf(sc->mfi_dev, "Cannot allocate sense memory\n"); 304 return (ENOMEM); 305 } 306 bus_dmamap_load(sc->mfi_sense_dmat, sc->mfi_sense_dmamap, 307 sc->mfi_sense, sensesz, mfi_addr32_cb, &sc->mfi_sense_busaddr, 0); 308 309 if ((error = mfi_alloc_commands(sc)) != 0) 310 return (error); 311 312 if ((error = mfi_comms_init(sc)) != 0) 313 return (error); 314 315 if ((error = mfi_get_controller_info(sc)) != 0) 316 return (error); 317 318 #if 0 319 if ((error = mfi_setup_aen(sc)) != 0) 320 return (error); 321 #endif 322 323 /* 324 * Set up the interrupt handler. XXX This should happen in 325 * mfi_pci.c 326 */ 327 sc->mfi_irq_rid = 0; 328 if ((sc->mfi_irq = bus_alloc_resource_any(sc->mfi_dev, SYS_RES_IRQ, 329 &sc->mfi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 330 device_printf(sc->mfi_dev, "Cannot allocate interrupt\n"); 331 return (EINVAL); 332 } 333 if (bus_setup_intr(sc->mfi_dev, sc->mfi_irq, INTR_MPSAFE|INTR_TYPE_BIO, 334 mfi_intr, sc, &sc->mfi_intr)) { 335 device_printf(sc->mfi_dev, "Cannot set up interrupt\n"); 336 return (EINVAL); 337 } 338 339 /* Register a config hook to probe the bus for arrays */ 340 sc->mfi_ich.ich_func = mfi_startup; 341 sc->mfi_ich.ich_arg = sc; 342 if (config_intrhook_establish(&sc->mfi_ich) != 0) { 343 device_printf(sc->mfi_dev, "Cannot establish configuration " 344 "hook\n"); 345 return (EINVAL); 346 } 347 348 /* 349 * Register a shutdown handler. 350 */ 351 if ((sc->mfi_eh = EVENTHANDLER_REGISTER(shutdown_final, mfi_shutdown, 352 sc, SHUTDOWN_PRI_DEFAULT)) == NULL) { 353 device_printf(sc->mfi_dev, "Warning: shutdown event " 354 "registration failed\n"); 355 } 356 357 /* 358 * Create the control device for doing management 359 */ 360 unit = device_get_unit(sc->mfi_dev); 361 sc->mfi_cdev = make_dev(&mfi_cdevsw, unit, UID_ROOT, GID_OPERATOR, 362 0640, "mfi%d", unit); 363 if (sc->mfi_cdev != NULL) 364 sc->mfi_cdev->si_drv1 = sc; 365 366 return (0); 367 } 368 369 static int 370 mfi_alloc_commands(struct mfi_softc *sc) 371 { 372 struct mfi_command *cm; 373 int i, ncmds; 374 375 /* 376 * XXX Should we allocate all the commands up front, or allocate on 377 * demand later like 'aac' does? 378 */ 379 ncmds = sc->mfi_max_fw_cmds; 380 sc->mfi_commands = malloc(sizeof(struct mfi_command) * ncmds, M_MFIBUF, 381 M_WAITOK | M_ZERO); 382 383 for (i = 0; i < ncmds; i++) { 384 cm = &sc->mfi_commands[i]; 385 cm->cm_frame = (union mfi_frame *)((uintptr_t)sc->mfi_frames + 386 sc->mfi_frame_size * i); 387 cm->cm_frame_busaddr = sc->mfi_frames_busaddr + 388 sc->mfi_frame_size * i; 389 cm->cm_frame->header.context = i; 390 cm->cm_sense = &sc->mfi_sense[i]; 391 cm->cm_sense_busaddr= sc->mfi_sense_busaddr + MFI_SENSE_LEN * i; 392 cm->cm_sc = sc; 393 if (bus_dmamap_create(sc->mfi_buffer_dmat, 0, 394 &cm->cm_dmamap) == 0) 395 mfi_release_command(cm); 396 else 397 break; 398 sc->mfi_total_cmds++; 399 } 400 401 return (0); 402 } 403 404 static void 405 mfi_release_command(struct mfi_command *cm) 406 { 407 uint32_t *hdr_data; 408 409 /* 410 * Zero out the important fields of the frame, but make sure the 411 * context field is preserved 412 */ 413 hdr_data = (uint32_t *)cm->cm_frame; 414 hdr_data[0] = 0; 415 hdr_data[1] = 0; 416 417 cm->cm_extra_frames = 0; 418 cm->cm_flags = 0; 419 cm->cm_complete = NULL; 420 cm->cm_private = NULL; 421 cm->cm_sg = 0; 422 cm->cm_total_frame_size = 0; 423 mfi_enqueue_free(cm); 424 } 425 426 static int 427 mfi_comms_init(struct mfi_softc *sc) 428 { 429 struct mfi_command *cm; 430 struct mfi_init_frame *init; 431 struct mfi_init_qinfo *qinfo; 432 int error; 433 434 if ((cm = mfi_dequeue_free(sc)) == NULL) 435 return (EBUSY); 436 437 /* 438 * Abuse the SG list area of the frame to hold the init_qinfo 439 * object; 440 */ 441 init = &cm->cm_frame->init; 442 qinfo = (struct mfi_init_qinfo *)((uintptr_t)init + MFI_FRAME_SIZE); 443 444 bzero(qinfo, sizeof(struct mfi_init_qinfo)); 445 qinfo->rq_entries = sc->mfi_max_fw_cmds + 1; 446 qinfo->rq_addr_lo = sc->mfi_comms_busaddr + 447 offsetof(struct mfi_hwcomms, hw_reply_q); 448 qinfo->pi_addr_lo = sc->mfi_comms_busaddr + 449 offsetof(struct mfi_hwcomms, hw_pi); 450 qinfo->ci_addr_lo = sc->mfi_comms_busaddr + 451 offsetof(struct mfi_hwcomms, hw_ci); 452 453 init->header.cmd = MFI_CMD_INIT; 454 init->header.data_len = sizeof(struct mfi_init_qinfo); 455 init->qinfo_new_addr_lo = cm->cm_frame_busaddr + MFI_FRAME_SIZE; 456 457 if ((error = mfi_polled_command(sc, cm)) != 0) { 458 device_printf(sc->mfi_dev, "failed to send init command\n"); 459 return (error); 460 } 461 mfi_release_command(cm); 462 463 return (0); 464 } 465 466 static int 467 mfi_get_controller_info(struct mfi_softc *sc) 468 { 469 struct mfi_command *cm; 470 struct mfi_dcmd_frame *dcmd; 471 struct mfi_ctrl_info *ci; 472 uint32_t max_sectors_1, max_sectors_2; 473 int error; 474 475 if ((cm = mfi_dequeue_free(sc)) == NULL) 476 return (EBUSY); 477 478 ci = malloc(sizeof(struct mfi_ctrl_info), M_MFIBUF, M_NOWAIT | M_ZERO); 479 if (ci == NULL) { 480 mfi_release_command(cm); 481 return (ENOMEM); 482 } 483 484 dcmd = &cm->cm_frame->dcmd; 485 bzero(dcmd->mbox, MFI_MBOX_SIZE); 486 dcmd->header.cmd = MFI_CMD_DCMD; 487 dcmd->header.timeout = 0; 488 dcmd->header.data_len = sizeof(struct mfi_ctrl_info); 489 dcmd->opcode = MFI_DCMD_CTRL_GETINFO; 490 cm->cm_sg = &dcmd->sgl; 491 cm->cm_total_frame_size = MFI_DCMD_FRAME_SIZE; 492 cm->cm_flags = MFI_CMD_DATAIN | MFI_CMD_POLLED; 493 cm->cm_data = ci; 494 cm->cm_len = sizeof(struct mfi_ctrl_info); 495 496 if ((error = mfi_mapcmd(sc, cm)) != 0) { 497 device_printf(sc->mfi_dev, "Controller info buffer map failed"); 498 free(ci, M_MFIBUF); 499 mfi_release_command(cm); 500 return (error); 501 } 502 503 /* It's ok if this fails, just use default info instead */ 504 if ((error = mfi_polled_command(sc, cm)) != 0) { 505 device_printf(sc->mfi_dev, "Failed to get controller info\n"); 506 sc->mfi_max_io = (sc->mfi_total_sgl - 1) * PAGE_SIZE / 507 MFI_SECTOR_LEN; 508 free(ci, M_MFIBUF); 509 mfi_release_command(cm); 510 return (0); 511 } 512 513 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 514 BUS_DMASYNC_POSTREAD); 515 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 516 517 max_sectors_1 = (1 << ci->stripe_sz_ops.min) * ci->max_strips_per_io; 518 max_sectors_2 = ci->max_request_size; 519 sc->mfi_max_io = min(max_sectors_1, max_sectors_2); 520 521 free(ci, M_MFIBUF); 522 mfi_release_command(cm); 523 524 return (error); 525 } 526 527 static int 528 mfi_polled_command(struct mfi_softc *sc, struct mfi_command *cm) 529 { 530 struct mfi_frame_header *hdr; 531 int tm = MFI_POLL_TIMEOUT_SECS * 1000000; 532 533 hdr = &cm->cm_frame->header; 534 hdr->cmd_status = 0xff; 535 hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; 536 537 mfi_send_frame(sc, cm); 538 539 while (hdr->cmd_status == 0xff) { 540 DELAY(1000); 541 tm -= 1000; 542 if (tm <= 0) 543 break; 544 } 545 546 if (hdr->cmd_status == 0xff) { 547 device_printf(sc->mfi_dev, "Frame %p timed out\n", hdr); 548 return (ETIMEDOUT); 549 } 550 551 return (0); 552 } 553 554 void 555 mfi_free(struct mfi_softc *sc) 556 { 557 struct mfi_command *cm; 558 int i; 559 560 if (sc->mfi_cdev != NULL) 561 destroy_dev(sc->mfi_cdev); 562 563 if (sc->mfi_total_cmds != 0) { 564 for (i = 0; i < sc->mfi_total_cmds; i++) { 565 cm = &sc->mfi_commands[i]; 566 bus_dmamap_destroy(sc->mfi_buffer_dmat, cm->cm_dmamap); 567 } 568 free(sc->mfi_commands, M_MFIBUF); 569 } 570 571 if (sc->mfi_intr) 572 bus_teardown_intr(sc->mfi_dev, sc->mfi_irq, sc->mfi_intr); 573 if (sc->mfi_irq != NULL) 574 bus_release_resource(sc->mfi_dev, SYS_RES_IRQ, sc->mfi_irq_rid, 575 sc->mfi_irq); 576 577 if (sc->mfi_sense_busaddr != 0) 578 bus_dmamap_unload(sc->mfi_sense_dmat, sc->mfi_sense_dmamap); 579 if (sc->mfi_sense != NULL) 580 bus_dmamem_free(sc->mfi_sense_dmat, sc->mfi_sense, 581 sc->mfi_sense_dmamap); 582 if (sc->mfi_sense_dmat != NULL) 583 bus_dma_tag_destroy(sc->mfi_sense_dmat); 584 585 if (sc->mfi_frames_busaddr != 0) 586 bus_dmamap_unload(sc->mfi_frames_dmat, sc->mfi_frames_dmamap); 587 if (sc->mfi_frames != NULL) 588 bus_dmamem_free(sc->mfi_frames_dmat, sc->mfi_frames, 589 sc->mfi_frames_dmamap); 590 if (sc->mfi_frames_dmat != NULL) 591 bus_dma_tag_destroy(sc->mfi_frames_dmat); 592 593 if (sc->mfi_comms_busaddr != 0) 594 bus_dmamap_unload(sc->mfi_comms_dmat, sc->mfi_comms_dmamap); 595 if (sc->mfi_comms != NULL) 596 bus_dmamem_free(sc->mfi_comms_dmat, sc->mfi_comms, 597 sc->mfi_comms_dmamap); 598 if (sc->mfi_comms_dmat != NULL) 599 bus_dma_tag_destroy(sc->mfi_comms_dmat); 600 601 if (sc->mfi_buffer_dmat != NULL) 602 bus_dma_tag_destroy(sc->mfi_buffer_dmat); 603 if (sc->mfi_parent_dmat != NULL) 604 bus_dma_tag_destroy(sc->mfi_parent_dmat); 605 606 if (mtx_initialized(&sc->mfi_io_lock)) 607 mtx_destroy(&sc->mfi_io_lock); 608 609 return; 610 } 611 612 static void 613 mfi_startup(void *arg) 614 { 615 struct mfi_softc *sc; 616 617 sc = (struct mfi_softc *)arg; 618 619 config_intrhook_disestablish(&sc->mfi_ich); 620 621 mfi_enable_intr(sc); 622 mfi_ldprobe_inq(sc); 623 } 624 625 static void 626 mfi_intr(void *arg) 627 { 628 struct mfi_softc *sc; 629 struct mfi_command *cm; 630 uint32_t status, pi, ci, context; 631 632 sc = (struct mfi_softc *)arg; 633 634 status = MFI_READ4(sc, MFI_OSTS); 635 if ((status & MFI_OSTS_INTR_VALID) == 0) 636 return; 637 MFI_WRITE4(sc, MFI_OSTS, status); 638 639 pi = sc->mfi_comms->hw_pi; 640 ci = sc->mfi_comms->hw_ci; 641 642 mtx_lock(&sc->mfi_io_lock); 643 while (ci != pi) { 644 context = sc->mfi_comms->hw_reply_q[ci]; 645 sc->mfi_comms->hw_reply_q[ci] = 0xffffffff; 646 if (context == 0xffffffff) { 647 device_printf(sc->mfi_dev, "mfi_intr: invalid context " 648 "pi= %d ci= %d\n", pi, ci); 649 } else { 650 cm = &sc->mfi_commands[context]; 651 mfi_remove_busy(cm); 652 mfi_complete(sc, cm); 653 } 654 ci++; 655 if (ci == (sc->mfi_max_fw_cmds + 1)) { 656 ci = 0; 657 } 658 } 659 mtx_unlock(&sc->mfi_io_lock); 660 661 sc->mfi_comms->hw_ci = ci; 662 663 return; 664 } 665 666 int 667 mfi_shutdown(struct mfi_softc *sc) 668 { 669 struct mfi_dcmd_frame *dcmd; 670 struct mfi_command *cm; 671 int error; 672 673 if ((cm = mfi_dequeue_free(sc)) == NULL) 674 return (EBUSY); 675 676 /* AEN? */ 677 678 dcmd = &cm->cm_frame->dcmd; 679 bzero(dcmd->mbox, MFI_MBOX_SIZE); 680 dcmd->header.cmd = MFI_CMD_DCMD; 681 dcmd->header.sg_count = 0; 682 dcmd->header.flags = MFI_FRAME_DIR_NONE; 683 dcmd->header.timeout = 0; 684 dcmd->header.data_len = 0; 685 dcmd->opcode = MFI_DCMD_CTRL_SHUTDOWN; 686 687 if ((error = mfi_polled_command(sc, cm)) != 0) { 688 device_printf(sc->mfi_dev, "Failed to shutdown controller\n"); 689 } 690 691 return (error); 692 } 693 694 static void 695 mfi_enable_intr(struct mfi_softc *sc) 696 { 697 698 MFI_WRITE4(sc, MFI_OMSK, 0x01); 699 } 700 701 static void 702 mfi_ldprobe_inq(struct mfi_softc *sc) 703 { 704 struct mfi_command *cm; 705 struct mfi_pass_frame *pass; 706 char *inq; 707 int i; 708 709 /* Probe all possible targets with a SCSI INQ command */ 710 mtx_lock(&sc->mfi_io_lock); 711 sc->mfi_probe_count = 0; 712 for (i = 0; i < MFI_MAX_CHANNEL_DEVS; i++) { 713 inq = malloc(MFI_INQ_LENGTH, M_MFIBUF, M_NOWAIT|M_ZERO); 714 if (inq == NULL) 715 break; 716 cm = mfi_dequeue_free(sc); 717 if (cm == NULL) { 718 tsleep(mfi_startup, 0, "mfistart", 5 * hz); 719 i--; 720 continue; 721 } 722 pass = &cm->cm_frame->pass; 723 pass->header.cmd = MFI_CMD_LD_SCSI_IO; 724 pass->header.target_id = i; 725 pass->header.lun_id = 0; 726 pass->header.cdb_len = 6; 727 pass->header.timeout = 0; 728 pass->header.data_len = MFI_INQ_LENGTH; 729 bzero(pass->cdb, 16); 730 pass->cdb[0] = INQUIRY; 731 pass->cdb[4] = MFI_INQ_LENGTH; 732 pass->header.sense_len = MFI_SENSE_LEN; 733 pass->sense_addr_lo = cm->cm_sense_busaddr; 734 pass->sense_addr_hi = 0; 735 cm->cm_complete = mfi_ldprobe_inq_complete; 736 cm->cm_private = inq; 737 cm->cm_sg = &pass->sgl; 738 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE; 739 cm->cm_flags |= MFI_CMD_DATAIN; 740 cm->cm_data = inq; 741 cm->cm_len = MFI_INQ_LENGTH; 742 sc->mfi_probe_count++; 743 mfi_enqueue_ready(cm); 744 mfi_startio(sc); 745 } 746 747 /* Sleep while the arrays are attaching */ 748 msleep(mfi_startup, &sc->mfi_io_lock, 0, "mfistart", 60 * hz); 749 mtx_unlock(&sc->mfi_io_lock); 750 751 return; 752 } 753 754 static void 755 mfi_ldprobe_inq_complete(struct mfi_command *cm) 756 { 757 struct mfi_frame_header *hdr; 758 struct mfi_softc *sc; 759 struct scsi_inquiry_data *inq; 760 761 sc = cm->cm_sc; 762 inq = cm->cm_private; 763 hdr = &cm->cm_frame->header; 764 765 if ((hdr->cmd_status != MFI_STAT_OK) || (hdr->scsi_status != 0x00) || 766 (SID_TYPE(inq) != T_DIRECT)) { 767 free(inq, M_MFIBUF); 768 mfi_release_command(cm); 769 if (--sc->mfi_probe_count <= 0) 770 wakeup(mfi_startup); 771 return; 772 } 773 774 free(inq, M_MFIBUF); 775 mfi_release_command(cm); 776 mfi_ldprobe_tur(sc, hdr->target_id); 777 } 778 779 static int 780 mfi_ldprobe_tur(struct mfi_softc *sc, int id) 781 { 782 struct mfi_command *cm; 783 struct mfi_pass_frame *pass; 784 785 cm = mfi_dequeue_free(sc); 786 if (cm == NULL) 787 return (EBUSY); 788 pass = &cm->cm_frame->pass; 789 pass->header.cmd = MFI_CMD_LD_SCSI_IO; 790 pass->header.target_id = id; 791 pass->header.lun_id = 0; 792 pass->header.cdb_len = 6; 793 pass->header.timeout = 0; 794 pass->header.data_len = 0; 795 bzero(pass->cdb, 16); 796 pass->cdb[0] = TEST_UNIT_READY; 797 pass->header.sense_len = MFI_SENSE_LEN; 798 pass->sense_addr_lo = cm->cm_sense_busaddr; 799 pass->sense_addr_hi = 0; 800 cm->cm_complete = mfi_ldprobe_tur_complete; 801 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE; 802 cm->cm_flags = 0; 803 mfi_enqueue_ready(cm); 804 mfi_startio(sc); 805 806 return (0); 807 } 808 809 static void 810 mfi_ldprobe_tur_complete(struct mfi_command *cm) 811 { 812 struct mfi_frame_header *hdr; 813 struct mfi_softc *sc; 814 815 sc = cm->cm_sc; 816 hdr = &cm->cm_frame->header; 817 818 if ((hdr->cmd_status != MFI_STAT_OK) || (hdr->scsi_status != 0x00)) { 819 device_printf(sc->mfi_dev, "Logical disk %d is not ready, " 820 "cmd_status= %d scsi_status= %d\n", hdr->target_id, 821 hdr->cmd_status, hdr->scsi_status); 822 mfi_print_sense(sc, cm->cm_sense); 823 mfi_release_command(cm); 824 if (--sc->mfi_probe_count <= 0) 825 wakeup(mfi_startup); 826 return; 827 } 828 mfi_release_command(cm); 829 mfi_ldprobe_capacity(sc, hdr->target_id); 830 } 831 832 static int 833 mfi_ldprobe_capacity(struct mfi_softc *sc, int id) 834 { 835 struct mfi_command *cm; 836 struct mfi_pass_frame *pass; 837 struct scsi_read_capacity_data_long *cap; 838 839 cap = malloc(sizeof(*cap), M_MFIBUF, M_NOWAIT|M_ZERO); 840 if (cap == NULL) 841 return (ENOMEM); 842 cm = mfi_dequeue_free(sc); 843 if (cm == NULL) 844 return (EBUSY); 845 pass = &cm->cm_frame->pass; 846 pass->header.cmd = MFI_CMD_LD_SCSI_IO; 847 pass->header.target_id = id; 848 pass->header.lun_id = 0; 849 pass->header.cdb_len = 6; 850 pass->header.timeout = 0; 851 pass->header.data_len = sizeof(*cap); 852 bzero(pass->cdb, 16); 853 pass->cdb[0] = 0x9e; /* READ CAPACITY 16 */ 854 pass->cdb[13] = sizeof(*cap); 855 pass->header.sense_len = MFI_SENSE_LEN; 856 pass->sense_addr_lo = cm->cm_sense_busaddr; 857 pass->sense_addr_hi = 0; 858 cm->cm_complete = mfi_ldprobe_capacity_complete; 859 cm->cm_private = cap; 860 cm->cm_sg = &pass->sgl; 861 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE; 862 cm->cm_flags |= MFI_CMD_DATAIN; 863 cm->cm_data = cap; 864 cm->cm_len = sizeof(*cap); 865 mfi_enqueue_ready(cm); 866 mfi_startio(sc); 867 868 return (0); 869 } 870 871 static void 872 mfi_ldprobe_capacity_complete(struct mfi_command *cm) 873 { 874 struct mfi_frame_header *hdr; 875 struct mfi_softc *sc; 876 struct scsi_read_capacity_data_long *cap; 877 uint64_t sectors; 878 uint32_t secsize; 879 int target; 880 881 sc = cm->cm_sc; 882 cap = cm->cm_private; 883 hdr = &cm->cm_frame->header; 884 885 if ((hdr->cmd_status != MFI_STAT_OK) || (hdr->scsi_status != 0x00)) { 886 device_printf(sc->mfi_dev, "Failed to read capacity for " 887 "logical disk\n"); 888 device_printf(sc->mfi_dev, "cmd_status= %d scsi_status= %d\n", 889 hdr->cmd_status, hdr->scsi_status); 890 free(cap, M_MFIBUF); 891 mfi_release_command(cm); 892 if (--sc->mfi_probe_count <= 0) 893 wakeup(mfi_startup); 894 return; 895 } 896 target = hdr->target_id; 897 sectors = scsi_8btou64(cap->addr); 898 secsize = scsi_4btoul(cap->length); 899 free(cap, M_MFIBUF); 900 mfi_release_command(cm); 901 mfi_add_ld(sc, target, sectors, secsize); 902 if (--sc->mfi_probe_count <= 0) 903 wakeup(mfi_startup); 904 905 return; 906 } 907 908 static int 909 mfi_add_ld(struct mfi_softc *sc, int id, uint64_t sectors, uint32_t secsize) 910 { 911 struct mfi_ld *ld; 912 device_t child; 913 914 if ((secsize == 0) || (sectors == 0)) { 915 device_printf(sc->mfi_dev, "Invalid capacity parameters for " 916 "logical disk %d\n", id); 917 return (EINVAL); 918 } 919 920 ld = malloc(sizeof(struct mfi_ld), M_MFIBUF, M_NOWAIT|M_ZERO); 921 if (ld == NULL) { 922 device_printf(sc->mfi_dev, "Cannot allocate ld\n"); 923 return (ENOMEM); 924 } 925 926 if ((child = device_add_child(sc->mfi_dev, "mfid", -1)) == NULL) { 927 device_printf(sc->mfi_dev, "Failed to add logical disk\n"); 928 return (EINVAL); 929 } 930 931 ld->ld_id = id; 932 ld->ld_disk = child; 933 ld->ld_secsize = secsize; 934 ld->ld_sectors = sectors; 935 936 device_set_ivars(child, ld); 937 device_set_desc(child, "MFI Logical Disk"); 938 mtx_unlock(&sc->mfi_io_lock); 939 mtx_lock(&Giant); 940 bus_generic_attach(sc->mfi_dev); 941 mtx_unlock(&Giant); 942 mtx_lock(&sc->mfi_io_lock); 943 944 return (0); 945 } 946 947 static struct mfi_command * 948 mfi_bio_command(struct mfi_softc *sc) 949 { 950 struct mfi_io_frame *io; 951 struct mfi_command *cm; 952 struct bio *bio; 953 int flags, blkcount;; 954 955 if ((cm = mfi_dequeue_free(sc)) == NULL) 956 return (NULL); 957 958 if ((bio = mfi_dequeue_bio(sc)) == NULL) { 959 mfi_release_command(cm); 960 return (NULL); 961 } 962 963 io = &cm->cm_frame->io; 964 switch (bio->bio_cmd & 0x03) { 965 case BIO_READ: 966 io->header.cmd = MFI_CMD_LD_READ; 967 flags = MFI_CMD_DATAIN; 968 break; 969 case BIO_WRITE: 970 io->header.cmd = MFI_CMD_LD_WRITE; 971 flags = MFI_CMD_DATAOUT; 972 break; 973 default: 974 panic("Invalid bio command"); 975 } 976 977 /* Cheat with the sector length to avoid a non-constant division */ 978 blkcount = (bio->bio_bcount + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 979 io->header.target_id = (uintptr_t)bio->bio_driver1; 980 io->header.timeout = 0; 981 io->header.flags = 0; 982 io->header.sense_len = MFI_SENSE_LEN; 983 io->header.data_len = blkcount; 984 io->sense_addr_lo = cm->cm_sense_busaddr; 985 io->sense_addr_hi = 0; 986 io->lba_hi = (bio->bio_pblkno & 0xffffffff00000000) >> 32; 987 io->lba_lo = bio->bio_pblkno & 0xffffffff; 988 cm->cm_complete = mfi_bio_complete; 989 cm->cm_private = bio; 990 cm->cm_data = bio->bio_data; 991 cm->cm_len = bio->bio_bcount; 992 cm->cm_sg = &io->sgl; 993 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 994 cm->cm_flags = flags; 995 996 return (cm); 997 } 998 999 static void 1000 mfi_bio_complete(struct mfi_command *cm) 1001 { 1002 struct bio *bio; 1003 struct mfi_frame_header *hdr; 1004 struct mfi_softc *sc; 1005 1006 bio = cm->cm_private; 1007 hdr = &cm->cm_frame->header; 1008 sc = cm->cm_sc; 1009 1010 if ((hdr->cmd_status != 0) || (hdr->scsi_status != 0)) { 1011 bio->bio_flags |= BIO_ERROR; 1012 bio->bio_error = EIO; 1013 device_printf(sc->mfi_dev, "I/O error, status= %d " 1014 "scsi_status= %d\n", hdr->cmd_status, hdr->scsi_status); 1015 mfi_print_sense(cm->cm_sc, cm->cm_sense); 1016 } 1017 1018 mfi_release_command(cm); 1019 mfi_disk_complete(bio); 1020 } 1021 1022 void 1023 mfi_startio(struct mfi_softc *sc) 1024 { 1025 struct mfi_command *cm; 1026 1027 for (;;) { 1028 /* Don't bother if we're short on resources */ 1029 if (sc->mfi_flags & MFI_FLAGS_QFRZN) 1030 break; 1031 1032 /* Try a command that has already been prepared */ 1033 cm = mfi_dequeue_ready(sc); 1034 1035 /* Nope, so look for work on the bioq */ 1036 if (cm == NULL) 1037 cm = mfi_bio_command(sc); 1038 1039 /* No work available, so exit */ 1040 if (cm == NULL) 1041 break; 1042 1043 /* Send the command to the controller */ 1044 if (mfi_mapcmd(sc, cm) != 0) { 1045 mfi_requeue_ready(cm); 1046 break; 1047 } 1048 } 1049 } 1050 1051 static int 1052 mfi_mapcmd(struct mfi_softc *sc, struct mfi_command *cm) 1053 { 1054 int error, polled; 1055 1056 if (cm->cm_data != NULL) { 1057 polled = (cm->cm_flags & MFI_CMD_POLLED) ? BUS_DMA_NOWAIT : 0; 1058 error = bus_dmamap_load(sc->mfi_buffer_dmat, cm->cm_dmamap, 1059 cm->cm_data, cm->cm_len, mfi_data_cb, cm, polled); 1060 if (error == EINPROGRESS) { 1061 sc->mfi_flags |= MFI_FLAGS_QFRZN; 1062 return (0); 1063 } 1064 } else { 1065 mfi_enqueue_busy(cm); 1066 error = mfi_send_frame(sc, cm); 1067 } 1068 1069 return (error); 1070 } 1071 1072 static void 1073 mfi_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1074 { 1075 struct mfi_frame_header *hdr; 1076 struct mfi_command *cm; 1077 union mfi_sgl *sgl; 1078 struct mfi_softc *sc; 1079 int i, dir; 1080 1081 if (error) 1082 return; 1083 1084 cm = (struct mfi_command *)arg; 1085 sc = cm->cm_sc; 1086 hdr = &cm->cm_frame->header; 1087 sgl = cm->cm_sg; 1088 1089 if ((sc->mfi_flags & MFI_FLAGS_SG64) == 0) { 1090 for (i = 0; i < nsegs; i++) { 1091 sgl->sg32[i].addr = segs[i].ds_addr; 1092 sgl->sg32[i].len = segs[i].ds_len; 1093 } 1094 } else { 1095 for (i = 0; i < nsegs; i++) { 1096 sgl->sg64[i].addr = segs[i].ds_addr; 1097 sgl->sg64[i].len = segs[i].ds_len; 1098 } 1099 hdr->flags |= MFI_FRAME_SGL64; 1100 } 1101 hdr->sg_count = nsegs; 1102 1103 dir = 0; 1104 if (cm->cm_flags & MFI_CMD_DATAIN) { 1105 dir |= BUS_DMASYNC_PREREAD; 1106 hdr->flags |= MFI_FRAME_DIR_READ; 1107 } 1108 if (cm->cm_flags & MFI_CMD_DATAOUT) { 1109 dir |= BUS_DMASYNC_PREWRITE; 1110 hdr->flags |= MFI_FRAME_DIR_WRITE; 1111 } 1112 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1113 cm->cm_flags |= MFI_CMD_MAPPED; 1114 1115 /* 1116 * Instead of calculating the total number of frames in the 1117 * compound frame, it's already assumed that there will be at 1118 * least 1 frame, so don't compensate for the modulo of the 1119 * following division. 1120 */ 1121 cm->cm_total_frame_size += (sc->mfi_sgsize * nsegs); 1122 cm->cm_extra_frames = (cm->cm_total_frame_size - 1) / MFI_FRAME_SIZE; 1123 1124 /* The caller will take care of delivering polled commands */ 1125 if ((cm->cm_flags & MFI_CMD_POLLED) == 0) { 1126 mfi_enqueue_busy(cm); 1127 mfi_send_frame(sc, cm); 1128 } 1129 1130 return; 1131 } 1132 1133 static int 1134 mfi_send_frame(struct mfi_softc *sc, struct mfi_command *cm) 1135 { 1136 1137 /* 1138 * The bus address of the command is aligned on a 64 byte boundary, 1139 * leaving the least 6 bits as zero. For whatever reason, the 1140 * hardware wants the address shifted right by three, leaving just 1141 * 3 zero bits. These three bits are then used to indicate how many 1142 * 64 byte frames beyond the first one are used in the command. The 1143 * extra frames are typically filled with S/G elements. The extra 1144 * frames must also be contiguous. Thus, a compound frame can be at 1145 * most 512 bytes long, allowing for up to 59 32-bit S/G elements or 1146 * 39 64-bit S/G elements for block I/O commands. This means that 1147 * I/O transfers of 256k and higher simply are not possible, which 1148 * is quite odd for such a modern adapter. 1149 */ 1150 MFI_WRITE4(sc, MFI_IQP, (cm->cm_frame_busaddr >> 3) | 1151 cm->cm_extra_frames); 1152 return (0); 1153 } 1154 1155 static void 1156 mfi_complete(struct mfi_softc *sc, struct mfi_command *cm) 1157 { 1158 int dir; 1159 1160 if ((cm->cm_flags & MFI_CMD_MAPPED) != 0) { 1161 dir = 0; 1162 if (cm->cm_flags & MFI_CMD_DATAIN) 1163 dir |= BUS_DMASYNC_POSTREAD; 1164 if (cm->cm_flags & MFI_CMD_DATAOUT) 1165 dir |= BUS_DMASYNC_POSTWRITE; 1166 1167 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, dir); 1168 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1169 cm->cm_flags &= ~MFI_CMD_MAPPED; 1170 } 1171 1172 if (cm->cm_complete != NULL) 1173 cm->cm_complete(cm); 1174 1175 sc->mfi_flags &= ~MFI_FLAGS_QFRZN; 1176 mfi_startio(sc); 1177 } 1178 1179 int 1180 mfi_dump_blocks(struct mfi_softc *sc, int id, uint64_t lba, void *virt, int len) 1181 { 1182 struct mfi_command *cm; 1183 struct mfi_io_frame *io; 1184 int error; 1185 1186 if ((cm = mfi_dequeue_free(sc)) == NULL) 1187 return (EBUSY); 1188 1189 io = &cm->cm_frame->io; 1190 io->header.cmd = MFI_CMD_LD_WRITE; 1191 io->header.target_id = id; 1192 io->header.timeout = 0; 1193 io->header.flags = 0; 1194 io->header.sense_len = MFI_SENSE_LEN; 1195 io->header.data_len = (len + MFI_SECTOR_LEN - 1) / MFI_SECTOR_LEN; 1196 io->sense_addr_lo = cm->cm_sense_busaddr; 1197 io->sense_addr_hi = 0; 1198 io->lba_hi = (lba & 0xffffffff00000000) >> 32; 1199 io->lba_lo = lba & 0xffffffff; 1200 cm->cm_data = virt; 1201 cm->cm_len = len; 1202 cm->cm_sg = &io->sgl; 1203 cm->cm_total_frame_size = MFI_IO_FRAME_SIZE; 1204 cm->cm_flags = MFI_CMD_POLLED | MFI_CMD_DATAOUT; 1205 1206 if ((error = mfi_mapcmd(sc, cm)) != 0) { 1207 mfi_release_command(cm); 1208 return (error); 1209 } 1210 1211 error = mfi_polled_command(sc, cm); 1212 bus_dmamap_sync(sc->mfi_buffer_dmat, cm->cm_dmamap, 1213 BUS_DMASYNC_POSTWRITE); 1214 bus_dmamap_unload(sc->mfi_buffer_dmat, cm->cm_dmamap); 1215 mfi_release_command(cm); 1216 1217 return (error); 1218 } 1219 1220 static int 1221 mfi_open(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1222 { 1223 struct mfi_softc *sc; 1224 1225 sc = dev->si_drv1; 1226 sc->mfi_flags |= MFI_FLAGS_OPEN; 1227 1228 return (0); 1229 } 1230 1231 static int 1232 mfi_close(struct cdev *dev, int flags, int fmt, d_thread_t *td) 1233 { 1234 struct mfi_softc *sc; 1235 1236 sc = dev->si_drv1; 1237 sc->mfi_flags &= ~MFI_FLAGS_OPEN; 1238 1239 return (0); 1240 } 1241 1242 static int 1243 mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 1244 { 1245 struct mfi_softc *sc; 1246 union mfi_statrequest *ms; 1247 int error; 1248 1249 sc = dev->si_drv1; 1250 error = 0; 1251 1252 switch (cmd) { 1253 case MFIIO_STATS: 1254 ms = (union mfi_statrequest *)arg; 1255 switch (ms->ms_item) { 1256 case MFIQ_FREE: 1257 case MFIQ_BIO: 1258 case MFIQ_READY: 1259 case MFIQ_BUSY: 1260 bcopy(&sc->mfi_qstat[ms->ms_item], &ms->ms_qstat, 1261 sizeof(struct mfi_qstat)); 1262 break; 1263 default: 1264 error = ENOENT; 1265 break; 1266 } 1267 break; 1268 default: 1269 error = ENOENT; 1270 break; 1271 } 1272 1273 return (error); 1274 }
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