1/*- 2 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 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 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: stable/11/sys/dev/mvs/mvs.c 315812 2017-03-23 06:40:20Z mav $"); 29 30#include <sys/param.h> 31#include <sys/module.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/ata.h> 35#include <sys/bus.h> 36#include <sys/conf.h> 37#include <sys/endian.h> 38#include <sys/malloc.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <vm/uma.h> 42#include <machine/stdarg.h> 43#include <machine/resource.h> 44#include <machine/bus.h> 45#include <sys/rman.h> 46#include <dev/pci/pcivar.h> 47#include "mvs.h" 48 49#include <cam/cam.h> 50#include <cam/cam_ccb.h> 51#include <cam/cam_sim.h> 52#include <cam/cam_xpt_sim.h> 53#include <cam/cam_debug.h> 54 55/* local prototypes */ 56static int mvs_ch_init(device_t dev); 57static int mvs_ch_deinit(device_t dev); 58static int mvs_ch_suspend(device_t dev); 59static int mvs_ch_resume(device_t dev); 60static void mvs_dmainit(device_t dev); 61static void mvs_dmasetupc_cb(void *xsc, 62 bus_dma_segment_t *segs, int nsegs, int error); 63static void mvs_dmafini(device_t dev); 64static void mvs_slotsalloc(device_t dev); 65static void mvs_slotsfree(device_t dev); 66static void mvs_setup_edma_queues(device_t dev); 67static void mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode); 68static void mvs_ch_pm(void *arg); 69static void mvs_ch_intr_locked(void *data); 70static void mvs_ch_intr(void *data); 71static void mvs_reset(device_t dev); 72static void mvs_softreset(device_t dev, union ccb *ccb); 73 74static int mvs_sata_connect(struct mvs_channel *ch); 75static int mvs_sata_phy_reset(device_t dev); 76static int mvs_wait(device_t dev, u_int s, u_int c, int t); 77static void mvs_tfd_read(device_t dev, union ccb *ccb); 78static void mvs_tfd_write(device_t dev, union ccb *ccb); 79static void mvs_legacy_intr(device_t dev, int poll); 80static void mvs_crbq_intr(device_t dev); 81static void mvs_begin_transaction(device_t dev, union ccb *ccb); 82static void mvs_legacy_execute_transaction(struct mvs_slot *slot); 83static void mvs_timeout(struct mvs_slot *slot); 84static void mvs_dmasetprd(void *arg, 85 bus_dma_segment_t *segs, int nsegs, int error); 86static void mvs_requeue_frozen(device_t dev); 87static void mvs_execute_transaction(struct mvs_slot *slot); 88static void mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et); 89 90static void mvs_issue_recovery(device_t dev); 91static void mvs_process_read_log(device_t dev, union ccb *ccb); 92static void mvs_process_request_sense(device_t dev, union ccb *ccb); 93 94static void mvsaction(struct cam_sim *sim, union ccb *ccb); 95static void mvspoll(struct cam_sim *sim); 96 97static MALLOC_DEFINE(M_MVS, "MVS driver", "MVS driver data buffers"); 98 99#define recovery_type spriv_field0 100#define RECOVERY_NONE 0 101#define RECOVERY_READ_LOG 1 102#define RECOVERY_REQUEST_SENSE 2 103#define recovery_slot spriv_field1 104 105static int 106mvs_ch_probe(device_t dev) 107{ 108 109 device_set_desc_copy(dev, "Marvell SATA channel"); 110 return (BUS_PROBE_DEFAULT); 111} 112 113static int 114mvs_ch_attach(device_t dev) 115{ 116 struct mvs_controller *ctlr = device_get_softc(device_get_parent(dev)); 117 struct mvs_channel *ch = device_get_softc(dev); 118 struct cam_devq *devq; 119 int rid, error, i, sata_rev = 0; 120 121 ch->dev = dev; 122 ch->unit = (intptr_t)device_get_ivars(dev); 123 ch->quirks = ctlr->quirks; 124 mtx_init(&ch->mtx, "MVS channel lock", NULL, MTX_DEF); 125 ch->pm_level = 0; 126 resource_int_value(device_get_name(dev), 127 device_get_unit(dev), "pm_level", &ch->pm_level); 128 if (ch->pm_level > 3) 129 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 130 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 131 resource_int_value(device_get_name(dev), 132 device_get_unit(dev), "sata_rev", &sata_rev); 133 for (i = 0; i < 16; i++) { 134 ch->user[i].revision = sata_rev; 135 ch->user[i].mode = 0; 136 ch->user[i].bytecount = (ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048; 137 ch->user[i].tags = MVS_MAX_SLOTS; 138 ch->curr[i] = ch->user[i]; 139 if (ch->pm_level) { 140 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 141 CTS_SATA_CAPS_H_APST | 142 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 143 } 144 ch->user[i].caps |= CTS_SATA_CAPS_H_AN; 145 } 146 rid = ch->unit; 147 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 148 &rid, RF_ACTIVE))) 149 return (ENXIO); 150 mvs_dmainit(dev); 151 mvs_slotsalloc(dev); 152 mvs_ch_init(dev); 153 mtx_lock(&ch->mtx); 154 rid = ATA_IRQ_RID; 155 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 156 &rid, RF_SHAREABLE | RF_ACTIVE))) { 157 device_printf(dev, "Unable to map interrupt\n"); 158 error = ENXIO; 159 goto err0; 160 } 161 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 162 mvs_ch_intr_locked, dev, &ch->ih))) { 163 device_printf(dev, "Unable to setup interrupt\n"); 164 error = ENXIO; 165 goto err1; 166 } 167 /* Create the device queue for our SIM. */ 168 devq = cam_simq_alloc(MVS_MAX_SLOTS - 1); 169 if (devq == NULL) { 170 device_printf(dev, "Unable to allocate simq\n"); 171 error = ENOMEM; 172 goto err1; 173 } 174 /* Construct SIM entry */ 175 ch->sim = cam_sim_alloc(mvsaction, mvspoll, "mvsch", ch, 176 device_get_unit(dev), &ch->mtx, 177 2, (ch->quirks & MVS_Q_GENI) ? 0 : MVS_MAX_SLOTS - 1, 178 devq); 179 if (ch->sim == NULL) { 180 cam_simq_free(devq); 181 device_printf(dev, "unable to allocate sim\n"); 182 error = ENOMEM; 183 goto err1; 184 } 185 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 186 device_printf(dev, "unable to register xpt bus\n"); 187 error = ENXIO; 188 goto err2; 189 } 190 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 191 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 192 device_printf(dev, "unable to create path\n"); 193 error = ENXIO; 194 goto err3; 195 } 196 if (ch->pm_level > 3) { 197 callout_reset(&ch->pm_timer, 198 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 199 mvs_ch_pm, dev); 200 } 201 mtx_unlock(&ch->mtx); 202 return (0); 203 204err3: 205 xpt_bus_deregister(cam_sim_path(ch->sim)); 206err2: 207 cam_sim_free(ch->sim, /*free_devq*/TRUE); 208err1: 209 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 210err0: 211 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 212 mtx_unlock(&ch->mtx); 213 mtx_destroy(&ch->mtx); 214 return (error); 215} 216 217static int 218mvs_ch_detach(device_t dev) 219{ 220 struct mvs_channel *ch = device_get_softc(dev); 221 222 mtx_lock(&ch->mtx); 223 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 224 /* Forget about reset. */ 225 if (ch->resetting) { 226 ch->resetting = 0; 227 xpt_release_simq(ch->sim, TRUE); 228 } 229 xpt_free_path(ch->path); 230 xpt_bus_deregister(cam_sim_path(ch->sim)); 231 cam_sim_free(ch->sim, /*free_devq*/TRUE); 232 mtx_unlock(&ch->mtx); 233 234 if (ch->pm_level > 3) 235 callout_drain(&ch->pm_timer); 236 callout_drain(&ch->reset_timer); 237 bus_teardown_intr(dev, ch->r_irq, ch->ih); 238 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 239 240 mvs_ch_deinit(dev); 241 mvs_slotsfree(dev); 242 mvs_dmafini(dev); 243 244 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 245 mtx_destroy(&ch->mtx); 246 return (0); 247} 248 249static int 250mvs_ch_init(device_t dev) 251{ 252 struct mvs_channel *ch = device_get_softc(dev); 253 uint32_t reg; 254 255 /* Disable port interrupts */ 256 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 257 /* Stop EDMA */ 258 ch->curr_mode = MVS_EDMA_UNKNOWN; 259 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 260 /* Clear and configure FIS interrupts. */ 261 ATA_OUTL(ch->r_mem, SATA_FISIC, 0); 262 reg = ATA_INL(ch->r_mem, SATA_FISC); 263 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 264 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 265 reg = ATA_INL(ch->r_mem, SATA_FISIM); 266 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 267 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 268 /* Clear SATA error register. */ 269 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 270 /* Clear any outstanding error interrupts. */ 271 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 272 /* Unmask all error interrupts */ 273 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 274 return (0); 275} 276 277static int 278mvs_ch_deinit(device_t dev) 279{ 280 struct mvs_channel *ch = device_get_softc(dev); 281 282 /* Stop EDMA */ 283 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 284 /* Disable port interrupts. */ 285 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 286 return (0); 287} 288 289static int 290mvs_ch_suspend(device_t dev) 291{ 292 struct mvs_channel *ch = device_get_softc(dev); 293 294 mtx_lock(&ch->mtx); 295 xpt_freeze_simq(ch->sim, 1); 296 while (ch->oslots) 297 msleep(ch, &ch->mtx, PRIBIO, "mvssusp", hz/100); 298 /* Forget about reset. */ 299 if (ch->resetting) { 300 ch->resetting = 0; 301 callout_stop(&ch->reset_timer); 302 xpt_release_simq(ch->sim, TRUE); 303 } 304 mvs_ch_deinit(dev); 305 mtx_unlock(&ch->mtx); 306 return (0); 307} 308 309static int 310mvs_ch_resume(device_t dev) 311{ 312 struct mvs_channel *ch = device_get_softc(dev); 313 314 mtx_lock(&ch->mtx); 315 mvs_ch_init(dev); 316 mvs_reset(dev); 317 xpt_release_simq(ch->sim, TRUE); 318 mtx_unlock(&ch->mtx); 319 return (0); 320} 321 322struct mvs_dc_cb_args { 323 bus_addr_t maddr; 324 int error; 325}; 326 327static void 328mvs_dmainit(device_t dev) 329{ 330 struct mvs_channel *ch = device_get_softc(dev); 331 struct mvs_dc_cb_args dcba; 332 333 /* EDMA command request area. */ 334 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 335 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 336 NULL, NULL, MVS_WORKRQ_SIZE, 1, MVS_WORKRQ_SIZE, 337 0, NULL, NULL, &ch->dma.workrq_tag)) 338 goto error; 339 if (bus_dmamem_alloc(ch->dma.workrq_tag, (void **)&ch->dma.workrq, 0, 340 &ch->dma.workrq_map)) 341 goto error; 342 if (bus_dmamap_load(ch->dma.workrq_tag, ch->dma.workrq_map, 343 ch->dma.workrq, MVS_WORKRQ_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 344 dcba.error) { 345 bus_dmamem_free(ch->dma.workrq_tag, 346 ch->dma.workrq, ch->dma.workrq_map); 347 goto error; 348 } 349 ch->dma.workrq_bus = dcba.maddr; 350 /* EDMA command response area. */ 351 if (bus_dma_tag_create(bus_get_dma_tag(dev), 256, 0, 352 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 353 NULL, NULL, MVS_WORKRP_SIZE, 1, MVS_WORKRP_SIZE, 354 0, NULL, NULL, &ch->dma.workrp_tag)) 355 goto error; 356 if (bus_dmamem_alloc(ch->dma.workrp_tag, (void **)&ch->dma.workrp, 0, 357 &ch->dma.workrp_map)) 358 goto error; 359 if (bus_dmamap_load(ch->dma.workrp_tag, ch->dma.workrp_map, 360 ch->dma.workrp, MVS_WORKRP_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 361 dcba.error) { 362 bus_dmamem_free(ch->dma.workrp_tag, 363 ch->dma.workrp, ch->dma.workrp_map); 364 goto error; 365 } 366 ch->dma.workrp_bus = dcba.maddr; 367 /* Data area. */ 368 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, MVS_EPRD_MAX, 369 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 370 NULL, NULL, 371 MVS_SG_ENTRIES * PAGE_SIZE * MVS_MAX_SLOTS, 372 MVS_SG_ENTRIES, MVS_EPRD_MAX, 373 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 374 goto error; 375 } 376 return; 377 378error: 379 device_printf(dev, "WARNING - DMA initialization failed\n"); 380 mvs_dmafini(dev); 381} 382 383static void 384mvs_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 385{ 386 struct mvs_dc_cb_args *dcba = (struct mvs_dc_cb_args *)xsc; 387 388 if (!(dcba->error = error)) 389 dcba->maddr = segs[0].ds_addr; 390} 391 392static void 393mvs_dmafini(device_t dev) 394{ 395 struct mvs_channel *ch = device_get_softc(dev); 396 397 if (ch->dma.data_tag) { 398 bus_dma_tag_destroy(ch->dma.data_tag); 399 ch->dma.data_tag = NULL; 400 } 401 if (ch->dma.workrp_bus) { 402 bus_dmamap_unload(ch->dma.workrp_tag, ch->dma.workrp_map); 403 bus_dmamem_free(ch->dma.workrp_tag, 404 ch->dma.workrp, ch->dma.workrp_map); 405 ch->dma.workrp_bus = 0; 406 ch->dma.workrp = NULL; 407 } 408 if (ch->dma.workrp_tag) { 409 bus_dma_tag_destroy(ch->dma.workrp_tag); 410 ch->dma.workrp_tag = NULL; 411 } 412 if (ch->dma.workrq_bus) { 413 bus_dmamap_unload(ch->dma.workrq_tag, ch->dma.workrq_map); 414 bus_dmamem_free(ch->dma.workrq_tag, 415 ch->dma.workrq, ch->dma.workrq_map); 416 ch->dma.workrq_bus = 0; 417 ch->dma.workrq = NULL; 418 } 419 if (ch->dma.workrq_tag) { 420 bus_dma_tag_destroy(ch->dma.workrq_tag); 421 ch->dma.workrq_tag = NULL; 422 } 423} 424 425static void 426mvs_slotsalloc(device_t dev) 427{ 428 struct mvs_channel *ch = device_get_softc(dev); 429 int i; 430 431 /* Alloc and setup command/dma slots */ 432 bzero(ch->slot, sizeof(ch->slot)); 433 for (i = 0; i < MVS_MAX_SLOTS; i++) { 434 struct mvs_slot *slot = &ch->slot[i]; 435 436 slot->dev = dev; 437 slot->slot = i; 438 slot->state = MVS_SLOT_EMPTY; 439 slot->ccb = NULL; 440 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 441 442 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 443 device_printf(ch->dev, "FAILURE - create data_map\n"); 444 } 445} 446 447static void 448mvs_slotsfree(device_t dev) 449{ 450 struct mvs_channel *ch = device_get_softc(dev); 451 int i; 452 453 /* Free all dma slots */ 454 for (i = 0; i < MVS_MAX_SLOTS; i++) { 455 struct mvs_slot *slot = &ch->slot[i]; 456 457 callout_drain(&slot->timeout); 458 if (slot->dma.data_map) { 459 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 460 slot->dma.data_map = NULL; 461 } 462 } 463} 464 465static void 466mvs_setup_edma_queues(device_t dev) 467{ 468 struct mvs_channel *ch = device_get_softc(dev); 469 uint64_t work; 470 471 /* Requests queue. */ 472 work = ch->dma.workrq_bus; 473 ATA_OUTL(ch->r_mem, EDMA_REQQBAH, work >> 32); 474 ATA_OUTL(ch->r_mem, EDMA_REQQIP, work & 0xffffffff); 475 ATA_OUTL(ch->r_mem, EDMA_REQQOP, work & 0xffffffff); 476 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 477 BUS_DMASYNC_PREWRITE); 478 /* Responses queue. */ 479 memset(ch->dma.workrp, 0xff, MVS_WORKRP_SIZE); 480 work = ch->dma.workrp_bus; 481 ATA_OUTL(ch->r_mem, EDMA_RESQBAH, work >> 32); 482 ATA_OUTL(ch->r_mem, EDMA_RESQIP, work & 0xffffffff); 483 ATA_OUTL(ch->r_mem, EDMA_RESQOP, work & 0xffffffff); 484 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 485 BUS_DMASYNC_PREREAD); 486 ch->out_idx = 0; 487 ch->in_idx = 0; 488} 489 490static void 491mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode) 492{ 493 struct mvs_channel *ch = device_get_softc(dev); 494 int timeout; 495 uint32_t ecfg, fcfg, hc, ltm, unkn; 496 497 if (mode == ch->curr_mode) 498 return; 499 /* If we are running, we should stop first. */ 500 if (ch->curr_mode != MVS_EDMA_OFF) { 501 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EDSEDMA); 502 timeout = 0; 503 while (ATA_INL(ch->r_mem, EDMA_CMD) & EDMA_CMD_EENEDMA) { 504 DELAY(1000); 505 if (timeout++ > 1000) { 506 device_printf(dev, "stopping EDMA engine failed\n"); 507 break; 508 } 509 } 510 } 511 ch->curr_mode = mode; 512 ch->fbs_enabled = 0; 513 ch->fake_busy = 0; 514 /* Report mode to controller. Needed for correct CCC operation. */ 515 MVS_EDMA(device_get_parent(dev), dev, mode); 516 /* Configure new mode. */ 517 ecfg = EDMA_CFG_RESERVED | EDMA_CFG_RESERVED2 | EDMA_CFG_EHOSTQUEUECACHEEN; 518 if (ch->pm_present) { 519 ecfg |= EDMA_CFG_EMASKRXPM; 520 if (ch->quirks & MVS_Q_GENIIE) { 521 ecfg |= EDMA_CFG_EEDMAFBS; 522 ch->fbs_enabled = 1; 523 } 524 } 525 if (ch->quirks & MVS_Q_GENI) 526 ecfg |= EDMA_CFG_ERDBSZ; 527 else if (ch->quirks & MVS_Q_GENII) 528 ecfg |= EDMA_CFG_ERDBSZEXT | EDMA_CFG_EWRBUFFERLEN; 529 if (ch->quirks & MVS_Q_CT) 530 ecfg |= EDMA_CFG_ECUTTHROUGHEN; 531 if (mode != MVS_EDMA_OFF) 532 ecfg |= EDMA_CFG_EEARLYCOMPLETIONEN; 533 if (mode == MVS_EDMA_QUEUED) 534 ecfg |= EDMA_CFG_EQUE; 535 else if (mode == MVS_EDMA_NCQ) 536 ecfg |= EDMA_CFG_ESATANATVCMDQUE; 537 ATA_OUTL(ch->r_mem, EDMA_CFG, ecfg); 538 mvs_setup_edma_queues(dev); 539 if (ch->quirks & MVS_Q_GENIIE) { 540 /* Configure FBS-related registers */ 541 fcfg = ATA_INL(ch->r_mem, SATA_FISC); 542 ltm = ATA_INL(ch->r_mem, SATA_LTM); 543 hc = ATA_INL(ch->r_mem, EDMA_HC); 544 if (ch->fbs_enabled) { 545 fcfg |= SATA_FISC_FISDMAACTIVATESYNCRESP; 546 if (mode == MVS_EDMA_NCQ) { 547 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 548 hc &= ~EDMA_IE_EDEVERR; 549 } else { 550 fcfg |= SATA_FISC_FISWAIT4HOSTRDYEN_B0; 551 hc |= EDMA_IE_EDEVERR; 552 } 553 ltm |= (1 << 8); 554 } else { 555 fcfg &= ~SATA_FISC_FISDMAACTIVATESYNCRESP; 556 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 557 hc |= EDMA_IE_EDEVERR; 558 ltm &= ~(1 << 8); 559 } 560 ATA_OUTL(ch->r_mem, SATA_FISC, fcfg); 561 ATA_OUTL(ch->r_mem, SATA_LTM, ltm); 562 ATA_OUTL(ch->r_mem, EDMA_HC, hc); 563 /* This is some magic, required to handle several DRQs 564 * with basic DMA. */ 565 unkn = ATA_INL(ch->r_mem, EDMA_UNKN_RESD); 566 if (mode == MVS_EDMA_OFF) 567 unkn |= 1; 568 else 569 unkn &= ~1; 570 ATA_OUTL(ch->r_mem, EDMA_UNKN_RESD, unkn); 571 } 572 /* Run EDMA. */ 573 if (mode != MVS_EDMA_OFF) 574 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EENEDMA); 575} 576 577devclass_t mvs_devclass; 578devclass_t mvsch_devclass; 579static device_method_t mvsch_methods[] = { 580 DEVMETHOD(device_probe, mvs_ch_probe), 581 DEVMETHOD(device_attach, mvs_ch_attach), 582 DEVMETHOD(device_detach, mvs_ch_detach), 583 DEVMETHOD(device_suspend, mvs_ch_suspend), 584 DEVMETHOD(device_resume, mvs_ch_resume), 585 { 0, 0 } 586}; 587static driver_t mvsch_driver = { 588 "mvsch", 589 mvsch_methods, 590 sizeof(struct mvs_channel) 591}; 592DRIVER_MODULE(mvsch, mvs, mvsch_driver, mvsch_devclass, 0, 0); 593DRIVER_MODULE(mvsch, sata, mvsch_driver, mvsch_devclass, 0, 0); 594 595static void 596mvs_phy_check_events(device_t dev, u_int32_t serr) 597{ 598 struct mvs_channel *ch = device_get_softc(dev); 599 600 if (ch->pm_level == 0) { 601 u_int32_t status = ATA_INL(ch->r_mem, SATA_SS); 602 union ccb *ccb; 603 604 if (bootverbose) { 605 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 606 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 607 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) { 608 device_printf(dev, "CONNECT requested\n"); 609 } else 610 device_printf(dev, "DISCONNECT requested\n"); 611 } 612 mvs_reset(dev); 613 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 614 return; 615 if (xpt_create_path(&ccb->ccb_h.path, NULL, 616 cam_sim_path(ch->sim), 617 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 618 xpt_free_ccb(ccb); 619 return; 620 } 621 xpt_rescan(ccb); 622 } 623} 624 625static void 626mvs_notify_events(device_t dev) 627{ 628 struct mvs_channel *ch = device_get_softc(dev); 629 struct cam_path *dpath; 630 uint32_t fis; 631 int d; 632 633 /* Try to read PMP field from SDB FIS. Present only for Gen-IIe. */ 634 fis = ATA_INL(ch->r_mem, SATA_FISDW0); 635 if ((fis & 0x80ff) == 0x80a1) 636 d = (fis & 0x0f00) >> 8; 637 else 638 d = ch->pm_present ? 15 : 0; 639 if (bootverbose) 640 device_printf(dev, "SNTF %d\n", d); 641 if (xpt_create_path(&dpath, NULL, 642 xpt_path_path_id(ch->path), d, 0) == CAM_REQ_CMP) { 643 xpt_async(AC_SCSI_AEN, dpath, NULL); 644 xpt_free_path(dpath); 645 } 646} 647 648static void 649mvs_ch_intr_locked(void *data) 650{ 651 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 652 device_t dev = (device_t)arg->arg; 653 struct mvs_channel *ch = device_get_softc(dev); 654 655 mtx_lock(&ch->mtx); 656 mvs_ch_intr(data); 657 mtx_unlock(&ch->mtx); 658} 659 660static void 661mvs_ch_pm(void *arg) 662{ 663 device_t dev = (device_t)arg; 664 struct mvs_channel *ch = device_get_softc(dev); 665 uint32_t work; 666 667 if (ch->numrslots != 0) 668 return; 669 /* If we are idle - request power state transition. */ 670 work = ATA_INL(ch->r_mem, SATA_SC); 671 work &= ~SATA_SC_SPM_MASK; 672 if (ch->pm_level == 4) 673 work |= SATA_SC_SPM_PARTIAL; 674 else 675 work |= SATA_SC_SPM_SLUMBER; 676 ATA_OUTL(ch->r_mem, SATA_SC, work); 677} 678 679static void 680mvs_ch_pm_wake(device_t dev) 681{ 682 struct mvs_channel *ch = device_get_softc(dev); 683 uint32_t work; 684 int timeout = 0; 685 686 work = ATA_INL(ch->r_mem, SATA_SS); 687 if (work & SATA_SS_IPM_ACTIVE) 688 return; 689 /* If we are not in active state - request power state transition. */ 690 work = ATA_INL(ch->r_mem, SATA_SC); 691 work &= ~SATA_SC_SPM_MASK; 692 work |= SATA_SC_SPM_ACTIVE; 693 ATA_OUTL(ch->r_mem, SATA_SC, work); 694 /* Wait for transition to happen. */ 695 while ((ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_IPM_ACTIVE) == 0 && 696 timeout++ < 100) { 697 DELAY(100); 698 } 699} 700 701static void 702mvs_ch_intr(void *data) 703{ 704 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 705 device_t dev = (device_t)arg->arg; 706 struct mvs_channel *ch = device_get_softc(dev); 707 uint32_t iec, serr = 0, fisic = 0; 708 enum mvs_err_type et; 709 int i, ccs, port = -1, selfdis = 0; 710 int edma = (ch->numtslots != 0 || ch->numdslots != 0); 711 712 /* New item in response queue. */ 713 if ((arg->cause & 2) && edma) 714 mvs_crbq_intr(dev); 715 /* Some error or special event. */ 716 if (arg->cause & 1) { 717 iec = ATA_INL(ch->r_mem, EDMA_IEC); 718 if (iec & EDMA_IE_SERRINT) { 719 serr = ATA_INL(ch->r_mem, SATA_SE); 720 ATA_OUTL(ch->r_mem, SATA_SE, serr); 721 } 722 /* EDMA self-disabled due to error. */ 723 if (iec & EDMA_IE_ESELFDIS) 724 selfdis = 1; 725 /* Transport interrupt. */ 726 if (iec & EDMA_IE_ETRANSINT) { 727 /* For Gen-I this bit means self-disable. */ 728 if (ch->quirks & MVS_Q_GENI) 729 selfdis = 1; 730 /* For Gen-II this bit means SDB-N. */ 731 else if (ch->quirks & MVS_Q_GENII) 732 fisic = SATA_FISC_FISWAIT4HOSTRDYEN_B1; 733 else /* For Gen-IIe - read FIS interrupt cause. */ 734 fisic = ATA_INL(ch->r_mem, SATA_FISIC); 735 } 736 if (selfdis) 737 ch->curr_mode = MVS_EDMA_UNKNOWN; 738 ATA_OUTL(ch->r_mem, EDMA_IEC, ~iec); 739 /* Interface errors or Device error. */ 740 if (iec & (0xfc1e9000 | EDMA_IE_EDEVERR)) { 741 port = -1; 742 if (ch->numpslots != 0) { 743 ccs = 0; 744 } else { 745 if (ch->quirks & MVS_Q_GENIIE) 746 ccs = EDMA_S_EIOID(ATA_INL(ch->r_mem, EDMA_S)); 747 else 748 ccs = EDMA_S_EDEVQUETAG(ATA_INL(ch->r_mem, EDMA_S)); 749 /* Check if error is one-PMP-port-specific, */ 750 if (ch->fbs_enabled) { 751 /* Which ports were active. */ 752 for (i = 0; i < 16; i++) { 753 if (ch->numrslotspd[i] == 0) 754 continue; 755 if (port == -1) 756 port = i; 757 else if (port != i) { 758 port = -2; 759 break; 760 } 761 } 762 /* If several ports were active and EDMA still enabled - 763 * other ports are probably unaffected and may continue. 764 */ 765 if (port == -2 && !selfdis) { 766 uint16_t p = ATA_INL(ch->r_mem, SATA_SATAITC) >> 16; 767 port = ffs(p) - 1; 768 if (port != (fls(p) - 1)) 769 port = -2; 770 } 771 } 772 } 773 mvs_requeue_frozen(dev); 774 for (i = 0; i < MVS_MAX_SLOTS; i++) { 775 /* XXX: reqests in loading state. */ 776 if (((ch->rslots >> i) & 1) == 0) 777 continue; 778 if (port >= 0 && 779 ch->slot[i].ccb->ccb_h.target_id != port) 780 continue; 781 if (iec & EDMA_IE_EDEVERR) { /* Device error. */ 782 if (port != -2) { 783 if (ch->numtslots == 0) { 784 /* Untagged operation. */ 785 if (i == ccs) 786 et = MVS_ERR_TFE; 787 else 788 et = MVS_ERR_INNOCENT; 789 } else { 790 /* Tagged operation. */ 791 et = MVS_ERR_NCQ; 792 } 793 } else { 794 et = MVS_ERR_TFE; 795 ch->fatalerr = 1; 796 } 797 } else if (iec & 0xfc1e9000) { 798 if (ch->numtslots == 0 && 799 i != ccs && port != -2) 800 et = MVS_ERR_INNOCENT; 801 else 802 et = MVS_ERR_SATA; 803 } else 804 et = MVS_ERR_INVALID; 805 mvs_end_transaction(&ch->slot[i], et); 806 } 807 } 808 /* Process SDB-N. */ 809 if (fisic & SATA_FISC_FISWAIT4HOSTRDYEN_B1) 810 mvs_notify_events(dev); 811 if (fisic) 812 ATA_OUTL(ch->r_mem, SATA_FISIC, ~fisic); 813 /* Process hot-plug. */ 814 if ((iec & (EDMA_IE_EDEVDIS | EDMA_IE_EDEVCON)) || 815 (serr & SATA_SE_PHY_CHANGED)) 816 mvs_phy_check_events(dev, serr); 817 } 818 /* Legacy mode device interrupt. */ 819 if ((arg->cause & 2) && !edma) 820 mvs_legacy_intr(dev, arg->cause & 4); 821} 822 823static uint8_t 824mvs_getstatus(device_t dev, int clear) 825{ 826 struct mvs_channel *ch = device_get_softc(dev); 827 uint8_t status = ATA_INB(ch->r_mem, clear ? ATA_STATUS : ATA_ALTSTAT); 828 829 if (ch->fake_busy) { 830 if (status & (ATA_S_BUSY | ATA_S_DRQ | ATA_S_ERROR)) 831 ch->fake_busy = 0; 832 else 833 status |= ATA_S_BUSY; 834 } 835 return (status); 836} 837 838static void 839mvs_legacy_intr(device_t dev, int poll) 840{ 841 struct mvs_channel *ch = device_get_softc(dev); 842 struct mvs_slot *slot = &ch->slot[0]; /* PIO is always in slot 0. */ 843 union ccb *ccb = slot->ccb; 844 enum mvs_err_type et = MVS_ERR_NONE; 845 int port; 846 u_int length, resid, size; 847 uint8_t buf[2]; 848 uint8_t status, ireason; 849 850 /* Clear interrupt and get status. */ 851 status = mvs_getstatus(dev, 1); 852 if (slot->state < MVS_SLOT_RUNNING) 853 return; 854 port = ccb->ccb_h.target_id & 0x0f; 855 /* Wait a bit for late !BUSY status update. */ 856 if (status & ATA_S_BUSY) { 857 if (poll) 858 return; 859 DELAY(100); 860 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) { 861 DELAY(1000); 862 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) 863 return; 864 } 865 } 866 /* If we got an error, we are done. */ 867 if (status & ATA_S_ERROR) { 868 et = MVS_ERR_TFE; 869 goto end_finished; 870 } 871 if (ccb->ccb_h.func_code == XPT_ATA_IO) { /* ATA PIO */ 872 ccb->ataio.res.status = status; 873 /* Are we moving data? */ 874 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 875 /* If data read command - get them. */ 876 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 877 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 878 device_printf(dev, "timeout waiting for read DRQ\n"); 879 et = MVS_ERR_TIMEOUT; 880 xpt_freeze_simq(ch->sim, 1); 881 ch->toslots |= (1 << slot->slot); 882 goto end_finished; 883 } 884 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 885 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 886 ch->transfersize / 2); 887 } 888 /* Update how far we've gotten. */ 889 ch->donecount += ch->transfersize; 890 /* Do we need more? */ 891 if (ccb->ataio.dxfer_len > ch->donecount) { 892 /* Set this transfer size according to HW capabilities */ 893 ch->transfersize = min(ccb->ataio.dxfer_len - ch->donecount, 894 ch->transfersize); 895 /* If data write command - put them */ 896 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 897 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 898 device_printf(dev, 899 "timeout waiting for write DRQ\n"); 900 et = MVS_ERR_TIMEOUT; 901 xpt_freeze_simq(ch->sim, 1); 902 ch->toslots |= (1 << slot->slot); 903 goto end_finished; 904 } 905 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 906 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 907 ch->transfersize / 2); 908 return; 909 } 910 /* If data read command, return & wait for interrupt */ 911 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 912 return; 913 } 914 } 915 } else if (ch->basic_dma) { /* ATAPI DMA */ 916 if (status & ATA_S_DWF) 917 et = MVS_ERR_TFE; 918 else if (ATA_INL(ch->r_mem, DMA_S) & DMA_S_ERR) 919 et = MVS_ERR_TFE; 920 /* Stop basic DMA. */ 921 ATA_OUTL(ch->r_mem, DMA_C, 0); 922 goto end_finished; 923 } else { /* ATAPI PIO */ 924 length = ATA_INB(ch->r_mem,ATA_CYL_LSB) | 925 (ATA_INB(ch->r_mem,ATA_CYL_MSB) << 8); 926 size = min(ch->transfersize, length); 927 ireason = ATA_INB(ch->r_mem,ATA_IREASON); 928 switch ((ireason & (ATA_I_CMD | ATA_I_IN)) | 929 (status & ATA_S_DRQ)) { 930 931 case ATAPI_P_CMDOUT: 932 device_printf(dev, "ATAPI CMDOUT\n"); 933 /* Return wait for interrupt */ 934 return; 935 936 case ATAPI_P_WRITE: 937 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 938 device_printf(dev, "trying to write on read buffer\n"); 939 et = MVS_ERR_TFE; 940 goto end_finished; 941 break; 942 } 943 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 944 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 945 (size + 1) / 2); 946 for (resid = ch->transfersize + (size & 1); 947 resid < length; resid += sizeof(int16_t)) 948 ATA_OUTW(ch->r_mem, ATA_DATA, 0); 949 ch->donecount += length; 950 /* Set next transfer size according to HW capabilities */ 951 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 952 ch->curr[ccb->ccb_h.target_id].bytecount); 953 /* Return wait for interrupt */ 954 return; 955 956 case ATAPI_P_READ: 957 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 958 device_printf(dev, "trying to read on write buffer\n"); 959 et = MVS_ERR_TFE; 960 goto end_finished; 961 } 962 if (size >= 2) { 963 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 964 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 965 size / 2); 966 } 967 if (size & 1) { 968 ATA_INSW_STRM(ch->r_mem, ATA_DATA, (void*)buf, 1); 969 ((uint8_t *)ccb->csio.data_ptr + ch->donecount + 970 (size & ~1))[0] = buf[0]; 971 } 972 for (resid = ch->transfersize + (size & 1); 973 resid < length; resid += sizeof(int16_t)) 974 ATA_INW(ch->r_mem, ATA_DATA); 975 ch->donecount += length; 976 /* Set next transfer size according to HW capabilities */ 977 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 978 ch->curr[ccb->ccb_h.target_id].bytecount); 979 /* Return wait for interrupt */ 980 return; 981 982 case ATAPI_P_DONEDRQ: 983 device_printf(dev, 984 "WARNING - DONEDRQ non conformant device\n"); 985 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 986 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 987 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 988 length / 2); 989 ch->donecount += length; 990 } 991 else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 992 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 993 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 994 length / 2); 995 ch->donecount += length; 996 } 997 else 998 et = MVS_ERR_TFE; 999 /* FALLTHROUGH */ 1000 1001 case ATAPI_P_ABORT: 1002 case ATAPI_P_DONE: 1003 if (status & (ATA_S_ERROR | ATA_S_DWF)) 1004 et = MVS_ERR_TFE; 1005 goto end_finished; 1006 1007 default: 1008 device_printf(dev, "unknown transfer phase" 1009 " (status %02x, ireason %02x)\n", 1010 status, ireason); 1011 et = MVS_ERR_TFE; 1012 } 1013 } 1014 1015end_finished: 1016 mvs_end_transaction(slot, et); 1017} 1018 1019static void 1020mvs_crbq_intr(device_t dev) 1021{ 1022 struct mvs_channel *ch = device_get_softc(dev); 1023 struct mvs_crpb *crpb; 1024 union ccb *ccb; 1025 int in_idx, fin_idx, cin_idx, slot; 1026 uint32_t val; 1027 uint16_t flags; 1028 1029 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1030 if (val == 0) 1031 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1032 in_idx = (val & EDMA_RESQP_ERPQP_MASK) >> 1033 EDMA_RESQP_ERPQP_SHIFT; 1034 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1035 BUS_DMASYNC_POSTREAD); 1036 fin_idx = cin_idx = ch->in_idx; 1037 ch->in_idx = in_idx; 1038 while (in_idx != cin_idx) { 1039 crpb = (struct mvs_crpb *) 1040 (ch->dma.workrp + MVS_CRPB_OFFSET + 1041 (MVS_CRPB_SIZE * cin_idx)); 1042 slot = le16toh(crpb->id) & MVS_CRPB_TAG_MASK; 1043 flags = le16toh(crpb->rspflg); 1044 /* 1045 * Handle only successful completions here. 1046 * Errors will be handled by main intr handler. 1047 */ 1048#if defined(__i386__) || defined(__amd64__) 1049 if (crpb->id == 0xffff && crpb->rspflg == 0xffff) { 1050 device_printf(dev, "Unfilled CRPB " 1051 "%d (%d->%d) tag %d flags %04x rs %08x\n", 1052 cin_idx, fin_idx, in_idx, slot, flags, ch->rslots); 1053 } else 1054#endif 1055 if (ch->numtslots != 0 || 1056 (flags & EDMA_IE_EDEVERR) == 0) { 1057#if defined(__i386__) || defined(__amd64__) 1058 crpb->id = 0xffff; 1059 crpb->rspflg = 0xffff; 1060#endif 1061 if (ch->slot[slot].state >= MVS_SLOT_RUNNING) { 1062 ccb = ch->slot[slot].ccb; 1063 ccb->ataio.res.status = 1064 (flags & MVS_CRPB_ATASTS_MASK) >> 1065 MVS_CRPB_ATASTS_SHIFT; 1066 mvs_end_transaction(&ch->slot[slot], MVS_ERR_NONE); 1067 } else { 1068 device_printf(dev, "Unused tag in CRPB " 1069 "%d (%d->%d) tag %d flags %04x rs %08x\n", 1070 cin_idx, fin_idx, in_idx, slot, flags, 1071 ch->rslots); 1072 } 1073 } else { 1074 device_printf(dev, 1075 "CRPB with error %d tag %d flags %04x\n", 1076 cin_idx, slot, flags); 1077 } 1078 cin_idx = (cin_idx + 1) & (MVS_MAX_SLOTS - 1); 1079 } 1080 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1081 BUS_DMASYNC_PREREAD); 1082 if (cin_idx == ch->in_idx) { 1083 ATA_OUTL(ch->r_mem, EDMA_RESQOP, 1084 ch->dma.workrp_bus | (cin_idx << EDMA_RESQP_ERPQP_SHIFT)); 1085 } 1086} 1087 1088/* Must be called with channel locked. */ 1089static int 1090mvs_check_collision(device_t dev, union ccb *ccb) 1091{ 1092 struct mvs_channel *ch = device_get_softc(dev); 1093 1094 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1095 /* NCQ DMA */ 1096 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1097 /* Can't mix NCQ and non-NCQ DMA commands. */ 1098 if (ch->numdslots != 0) 1099 return (1); 1100 /* Can't mix NCQ and PIO commands. */ 1101 if (ch->numpslots != 0) 1102 return (1); 1103 /* If we have no FBS */ 1104 if (!ch->fbs_enabled) { 1105 /* Tagged command while tagged to other target is active. */ 1106 if (ch->numtslots != 0 && 1107 ch->taggedtarget != ccb->ccb_h.target_id) 1108 return (1); 1109 } 1110 /* Non-NCQ DMA */ 1111 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1112 /* Can't mix non-NCQ DMA and NCQ commands. */ 1113 if (ch->numtslots != 0) 1114 return (1); 1115 /* Can't mix non-NCQ DMA and PIO commands. */ 1116 if (ch->numpslots != 0) 1117 return (1); 1118 /* PIO */ 1119 } else { 1120 /* Can't mix PIO with anything. */ 1121 if (ch->numrslots != 0) 1122 return (1); 1123 } 1124 if (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1125 /* Atomic command while anything active. */ 1126 if (ch->numrslots != 0) 1127 return (1); 1128 } 1129 } else { /* ATAPI */ 1130 /* ATAPI goes without EDMA, so can't mix it with anything. */ 1131 if (ch->numrslots != 0) 1132 return (1); 1133 } 1134 /* We have some atomic command running. */ 1135 if (ch->aslots != 0) 1136 return (1); 1137 return (0); 1138} 1139 1140static void 1141mvs_tfd_read(device_t dev, union ccb *ccb) 1142{ 1143 struct mvs_channel *ch = device_get_softc(dev); 1144 struct ata_res *res = &ccb->ataio.res; 1145 1146 res->status = ATA_INB(ch->r_mem, ATA_ALTSTAT); 1147 res->error = ATA_INB(ch->r_mem, ATA_ERROR); 1148 res->device = ATA_INB(ch->r_mem, ATA_DRIVE); 1149 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_HOB); 1150 res->sector_count_exp = ATA_INB(ch->r_mem, ATA_COUNT); 1151 res->lba_low_exp = ATA_INB(ch->r_mem, ATA_SECTOR); 1152 res->lba_mid_exp = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1153 res->lba_high_exp = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1154 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 1155 res->sector_count = ATA_INB(ch->r_mem, ATA_COUNT); 1156 res->lba_low = ATA_INB(ch->r_mem, ATA_SECTOR); 1157 res->lba_mid = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1158 res->lba_high = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1159} 1160 1161static void 1162mvs_tfd_write(device_t dev, union ccb *ccb) 1163{ 1164 struct mvs_channel *ch = device_get_softc(dev); 1165 struct ata_cmd *cmd = &ccb->ataio.cmd; 1166 1167 ATA_OUTB(ch->r_mem, ATA_DRIVE, cmd->device); 1168 ATA_OUTB(ch->r_mem, ATA_CONTROL, cmd->control); 1169 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features_exp); 1170 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features); 1171 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count_exp); 1172 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count); 1173 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low_exp); 1174 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low); 1175 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid_exp); 1176 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid); 1177 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high_exp); 1178 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high); 1179 ATA_OUTB(ch->r_mem, ATA_COMMAND, cmd->command); 1180} 1181 1182 1183/* Must be called with channel locked. */ 1184static void 1185mvs_begin_transaction(device_t dev, union ccb *ccb) 1186{ 1187 struct mvs_channel *ch = device_get_softc(dev); 1188 struct mvs_slot *slot; 1189 int slotn, tag; 1190 1191 if (ch->pm_level > 0) 1192 mvs_ch_pm_wake(dev); 1193 /* Softreset is a special case. */ 1194 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1195 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1196 mvs_softreset(dev, ccb); 1197 return; 1198 } 1199 /* Choose empty slot. */ 1200 slotn = ffs(~ch->oslots) - 1; 1201 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1202 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1203 if (ch->quirks & MVS_Q_GENIIE) 1204 tag = ffs(~ch->otagspd[ccb->ccb_h.target_id]) - 1; 1205 else 1206 tag = slotn; 1207 } else 1208 tag = 0; 1209 /* Occupy chosen slot. */ 1210 slot = &ch->slot[slotn]; 1211 slot->ccb = ccb; 1212 slot->tag = tag; 1213 /* Stop PM timer. */ 1214 if (ch->numrslots == 0 && ch->pm_level > 3) 1215 callout_stop(&ch->pm_timer); 1216 /* Update channel stats. */ 1217 ch->oslots |= (1 << slot->slot); 1218 ch->numrslots++; 1219 ch->numrslotspd[ccb->ccb_h.target_id]++; 1220 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1221 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1222 ch->otagspd[ccb->ccb_h.target_id] |= (1 << slot->tag); 1223 ch->numtslots++; 1224 ch->numtslotspd[ccb->ccb_h.target_id]++; 1225 ch->taggedtarget = ccb->ccb_h.target_id; 1226 mvs_set_edma_mode(dev, MVS_EDMA_NCQ); 1227 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1228 ch->numdslots++; 1229 mvs_set_edma_mode(dev, MVS_EDMA_ON); 1230 } else { 1231 ch->numpslots++; 1232 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1233 } 1234 if (ccb->ataio.cmd.flags & 1235 (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1236 ch->aslots |= (1 << slot->slot); 1237 } 1238 } else { 1239 uint8_t *cdb = (ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1240 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes; 1241 ch->numpslots++; 1242 /* Use ATAPI DMA only for commands without under-/overruns. */ 1243 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1244 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA && 1245 (ch->quirks & MVS_Q_SOC) == 0 && 1246 (cdb[0] == 0x08 || 1247 cdb[0] == 0x0a || 1248 cdb[0] == 0x28 || 1249 cdb[0] == 0x2a || 1250 cdb[0] == 0x88 || 1251 cdb[0] == 0x8a || 1252 cdb[0] == 0xa8 || 1253 cdb[0] == 0xaa || 1254 cdb[0] == 0xbe)) { 1255 ch->basic_dma = 1; 1256 } 1257 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1258 } 1259 if (ch->numpslots == 0 || ch->basic_dma) { 1260 slot->state = MVS_SLOT_LOADING; 1261 bus_dmamap_load_ccb(ch->dma.data_tag, slot->dma.data_map, 1262 ccb, mvs_dmasetprd, slot, 0); 1263 } else 1264 mvs_legacy_execute_transaction(slot); 1265} 1266 1267/* Locked by busdma engine. */ 1268static void 1269mvs_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1270{ 1271 struct mvs_slot *slot = arg; 1272 struct mvs_channel *ch = device_get_softc(slot->dev); 1273 struct mvs_eprd *eprd; 1274 int i; 1275 1276 if (error) { 1277 device_printf(slot->dev, "DMA load error\n"); 1278 mvs_end_transaction(slot, MVS_ERR_INVALID); 1279 return; 1280 } 1281 KASSERT(nsegs <= MVS_SG_ENTRIES, ("too many DMA segment entries\n")); 1282 /* If there is only one segment - no need to use S/G table on Gen-IIe. */ 1283 if (nsegs == 1 && ch->basic_dma == 0 && (ch->quirks & MVS_Q_GENIIE)) { 1284 slot->dma.addr = segs[0].ds_addr; 1285 slot->dma.len = segs[0].ds_len; 1286 } else { 1287 slot->dma.addr = 0; 1288 /* Get a piece of the workspace for this EPRD */ 1289 eprd = (struct mvs_eprd *) 1290 (ch->dma.workrq + MVS_EPRD_OFFSET + (MVS_EPRD_SIZE * slot->slot)); 1291 /* Fill S/G table */ 1292 for (i = 0; i < nsegs; i++) { 1293 eprd[i].prdbal = htole32(segs[i].ds_addr); 1294 eprd[i].bytecount = htole32(segs[i].ds_len & MVS_EPRD_MASK); 1295 eprd[i].prdbah = htole32((segs[i].ds_addr >> 16) >> 16); 1296 } 1297 eprd[i - 1].bytecount |= htole32(MVS_EPRD_EOF); 1298 } 1299 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1300 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1301 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1302 if (ch->basic_dma) 1303 mvs_legacy_execute_transaction(slot); 1304 else 1305 mvs_execute_transaction(slot); 1306} 1307 1308static void 1309mvs_legacy_execute_transaction(struct mvs_slot *slot) 1310{ 1311 device_t dev = slot->dev; 1312 struct mvs_channel *ch = device_get_softc(dev); 1313 bus_addr_t eprd; 1314 union ccb *ccb = slot->ccb; 1315 int port = ccb->ccb_h.target_id & 0x0f; 1316 int timeout; 1317 1318 slot->state = MVS_SLOT_RUNNING; 1319 ch->rslots |= (1 << slot->slot); 1320 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 1321 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1322 mvs_tfd_write(dev, ccb); 1323 /* Device reset doesn't interrupt. */ 1324 if (ccb->ataio.cmd.command == ATA_DEVICE_RESET) { 1325 int timeout = 1000000; 1326 do { 1327 DELAY(10); 1328 ccb->ataio.res.status = ATA_INB(ch->r_mem, ATA_STATUS); 1329 } while (ccb->ataio.res.status & ATA_S_BUSY && timeout--); 1330 mvs_legacy_intr(dev, 1); 1331 return; 1332 } 1333 ch->donecount = 0; 1334 if (ccb->ataio.cmd.command == ATA_READ_MUL || 1335 ccb->ataio.cmd.command == ATA_READ_MUL48 || 1336 ccb->ataio.cmd.command == ATA_WRITE_MUL || 1337 ccb->ataio.cmd.command == ATA_WRITE_MUL48) { 1338 ch->transfersize = min(ccb->ataio.dxfer_len, 1339 ch->curr[port].bytecount); 1340 } else 1341 ch->transfersize = min(ccb->ataio.dxfer_len, 512); 1342 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 1343 ch->fake_busy = 1; 1344 /* If data write command - output the data */ 1345 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1346 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 1347 device_printf(dev, 1348 "timeout waiting for write DRQ\n"); 1349 xpt_freeze_simq(ch->sim, 1); 1350 ch->toslots |= (1 << slot->slot); 1351 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1352 return; 1353 } 1354 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 1355 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 1356 ch->transfersize / 2); 1357 } 1358 } else { 1359 ch->donecount = 0; 1360 ch->transfersize = min(ccb->csio.dxfer_len, 1361 ch->curr[port].bytecount); 1362 /* Write ATA PACKET command. */ 1363 if (ch->basic_dma) { 1364 ATA_OUTB(ch->r_mem, ATA_FEATURE, ATA_F_DMA); 1365 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, 0); 1366 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, 0); 1367 } else { 1368 ATA_OUTB(ch->r_mem, ATA_FEATURE, 0); 1369 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, ch->transfersize); 1370 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, ch->transfersize >> 8); 1371 } 1372 ATA_OUTB(ch->r_mem, ATA_COMMAND, ATA_PACKET_CMD); 1373 ch->fake_busy = 1; 1374 /* Wait for ready to write ATAPI command block */ 1375 if (mvs_wait(dev, 0, ATA_S_BUSY, 1000) < 0) { 1376 device_printf(dev, "timeout waiting for ATAPI !BUSY\n"); 1377 xpt_freeze_simq(ch->sim, 1); 1378 ch->toslots |= (1 << slot->slot); 1379 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1380 return; 1381 } 1382 timeout = 5000; 1383 while (timeout--) { 1384 int reason = ATA_INB(ch->r_mem, ATA_IREASON); 1385 int status = ATA_INB(ch->r_mem, ATA_STATUS); 1386 1387 if (((reason & (ATA_I_CMD | ATA_I_IN)) | 1388 (status & (ATA_S_DRQ | ATA_S_BUSY))) == ATAPI_P_CMDOUT) 1389 break; 1390 DELAY(20); 1391 } 1392 if (timeout <= 0) { 1393 device_printf(dev, 1394 "timeout waiting for ATAPI command ready\n"); 1395 xpt_freeze_simq(ch->sim, 1); 1396 ch->toslots |= (1 << slot->slot); 1397 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1398 return; 1399 } 1400 /* Write ATAPI command. */ 1401 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 1402 (uint16_t *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1403 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes), 1404 ch->curr[port].atapi / 2); 1405 DELAY(10); 1406 if (ch->basic_dma) { 1407 /* Start basic DMA. */ 1408 eprd = ch->dma.workrq_bus + MVS_EPRD_OFFSET + 1409 (MVS_EPRD_SIZE * slot->slot); 1410 ATA_OUTL(ch->r_mem, DMA_DTLBA, eprd); 1411 ATA_OUTL(ch->r_mem, DMA_DTHBA, (eprd >> 16) >> 16); 1412 ATA_OUTL(ch->r_mem, DMA_C, DMA_C_START | 1413 (((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) ? 1414 DMA_C_READ : 0)); 1415 } 1416 } 1417 /* Start command execution timeout */ 1418 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0, 1419 (timeout_t*)mvs_timeout, slot, 0); 1420} 1421 1422/* Must be called with channel locked. */ 1423static void 1424mvs_execute_transaction(struct mvs_slot *slot) 1425{ 1426 device_t dev = slot->dev; 1427 struct mvs_channel *ch = device_get_softc(dev); 1428 bus_addr_t eprd; 1429 struct mvs_crqb *crqb; 1430 struct mvs_crqb_gen2e *crqb2e; 1431 union ccb *ccb = slot->ccb; 1432 int port = ccb->ccb_h.target_id & 0x0f; 1433 int i; 1434 1435 /* Get address of the prepared EPRD */ 1436 eprd = ch->dma.workrq_bus + MVS_EPRD_OFFSET + (MVS_EPRD_SIZE * slot->slot); 1437 /* Prepare CRQB. Gen IIe uses different CRQB format. */ 1438 if (ch->quirks & MVS_Q_GENIIE) { 1439 crqb2e = (struct mvs_crqb_gen2e *) 1440 (ch->dma.workrq + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1441 crqb2e->ctrlflg = htole32( 1442 ((ccb->ccb_h.flags & CAM_DIR_IN) ? MVS_CRQB2E_READ : 0) | 1443 (slot->tag << MVS_CRQB2E_DTAG_SHIFT) | 1444 (port << MVS_CRQB2E_PMP_SHIFT) | 1445 (slot->slot << MVS_CRQB2E_HTAG_SHIFT)); 1446 /* If there is only one segment - no need to use S/G table. */ 1447 if (slot->dma.addr != 0) { 1448 eprd = slot->dma.addr; 1449 crqb2e->ctrlflg |= htole32(MVS_CRQB2E_CPRD); 1450 crqb2e->drbc = slot->dma.len; 1451 } 1452 crqb2e->cprdbl = htole32(eprd); 1453 crqb2e->cprdbh = htole32((eprd >> 16) >> 16); 1454 crqb2e->cmd[0] = 0; 1455 crqb2e->cmd[1] = 0; 1456 crqb2e->cmd[2] = ccb->ataio.cmd.command; 1457 crqb2e->cmd[3] = ccb->ataio.cmd.features; 1458 crqb2e->cmd[4] = ccb->ataio.cmd.lba_low; 1459 crqb2e->cmd[5] = ccb->ataio.cmd.lba_mid; 1460 crqb2e->cmd[6] = ccb->ataio.cmd.lba_high; 1461 crqb2e->cmd[7] = ccb->ataio.cmd.device; 1462 crqb2e->cmd[8] = ccb->ataio.cmd.lba_low_exp; 1463 crqb2e->cmd[9] = ccb->ataio.cmd.lba_mid_exp; 1464 crqb2e->cmd[10] = ccb->ataio.cmd.lba_high_exp; 1465 crqb2e->cmd[11] = ccb->ataio.cmd.features_exp; 1466 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1467 crqb2e->cmd[12] = slot->tag << 3; 1468 crqb2e->cmd[13] = 0; 1469 } else { 1470 crqb2e->cmd[12] = ccb->ataio.cmd.sector_count; 1471 crqb2e->cmd[13] = ccb->ataio.cmd.sector_count_exp; 1472 } 1473 crqb2e->cmd[14] = 0; 1474 crqb2e->cmd[15] = 0; 1475 } else { 1476 crqb = (struct mvs_crqb *) 1477 (ch->dma.workrq + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1478 crqb->cprdbl = htole32(eprd); 1479 crqb->cprdbh = htole32((eprd >> 16) >> 16); 1480 crqb->ctrlflg = htole16( 1481 ((ccb->ccb_h.flags & CAM_DIR_IN) ? MVS_CRQB_READ : 0) | 1482 (slot->slot << MVS_CRQB_TAG_SHIFT) | 1483 (port << MVS_CRQB_PMP_SHIFT)); 1484 i = 0; 1485 /* 1486 * Controller can handle only 11 of 12 ATA registers, 1487 * so we have to choose which one to skip. 1488 */ 1489 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1490 crqb->cmd[i++] = ccb->ataio.cmd.features_exp; 1491 crqb->cmd[i++] = 0x11; 1492 } 1493 crqb->cmd[i++] = ccb->ataio.cmd.features; 1494 crqb->cmd[i++] = 0x11; 1495 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1496 crqb->cmd[i++] = slot->tag << 3; 1497 crqb->cmd[i++] = 0x12; 1498 } else { 1499 crqb->cmd[i++] = ccb->ataio.cmd.sector_count_exp; 1500 crqb->cmd[i++] = 0x12; 1501 crqb->cmd[i++] = ccb->ataio.cmd.sector_count; 1502 crqb->cmd[i++] = 0x12; 1503 } 1504 crqb->cmd[i++] = ccb->ataio.cmd.lba_low_exp; 1505 crqb->cmd[i++] = 0x13; 1506 crqb->cmd[i++] = ccb->ataio.cmd.lba_low; 1507 crqb->cmd[i++] = 0x13; 1508 crqb->cmd[i++] = ccb->ataio.cmd.lba_mid_exp; 1509 crqb->cmd[i++] = 0x14; 1510 crqb->cmd[i++] = ccb->ataio.cmd.lba_mid; 1511 crqb->cmd[i++] = 0x14; 1512 crqb->cmd[i++] = ccb->ataio.cmd.lba_high_exp; 1513 crqb->cmd[i++] = 0x15; 1514 crqb->cmd[i++] = ccb->ataio.cmd.lba_high; 1515 crqb->cmd[i++] = 0x15; 1516 crqb->cmd[i++] = ccb->ataio.cmd.device; 1517 crqb->cmd[i++] = 0x16; 1518 crqb->cmd[i++] = ccb->ataio.cmd.command; 1519 crqb->cmd[i++] = 0x97; 1520 } 1521 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 1522 BUS_DMASYNC_PREWRITE); 1523 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1524 BUS_DMASYNC_PREREAD); 1525 slot->state = MVS_SLOT_RUNNING; 1526 ch->rslots |= (1 << slot->slot); 1527 /* Issue command to the controller. */ 1528 ch->out_idx = (ch->out_idx + 1) & (MVS_MAX_SLOTS - 1); 1529 ATA_OUTL(ch->r_mem, EDMA_REQQIP, 1530 ch->dma.workrq_bus + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1531 /* Start command execution timeout */ 1532 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0, 1533 (timeout_t*)mvs_timeout, slot, 0); 1534 return; 1535} 1536 1537/* Must be called with channel locked. */ 1538static void 1539mvs_process_timeout(device_t dev) 1540{ 1541 struct mvs_channel *ch = device_get_softc(dev); 1542 int i; 1543 1544 mtx_assert(&ch->mtx, MA_OWNED); 1545 /* Handle the rest of commands. */ 1546 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1547 /* Do we have a running request on slot? */ 1548 if (ch->slot[i].state < MVS_SLOT_RUNNING) 1549 continue; 1550 mvs_end_transaction(&ch->slot[i], MVS_ERR_TIMEOUT); 1551 } 1552} 1553 1554/* Must be called with channel locked. */ 1555static void 1556mvs_rearm_timeout(device_t dev) 1557{ 1558 struct mvs_channel *ch = device_get_softc(dev); 1559 int i; 1560 1561 mtx_assert(&ch->mtx, MA_OWNED); 1562 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1563 struct mvs_slot *slot = &ch->slot[i]; 1564 1565 /* Do we have a running request on slot? */ 1566 if (slot->state < MVS_SLOT_RUNNING) 1567 continue; 1568 if ((ch->toslots & (1 << i)) == 0) 1569 continue; 1570 callout_reset_sbt(&slot->timeout, 1571 SBT_1MS * slot->ccb->ccb_h.timeout / 2, 0, 1572 (timeout_t*)mvs_timeout, slot, 0); 1573 } 1574} 1575 1576/* Locked by callout mechanism. */ 1577static void 1578mvs_timeout(struct mvs_slot *slot) 1579{ 1580 device_t dev = slot->dev; 1581 struct mvs_channel *ch = device_get_softc(dev); 1582 1583 /* Check for stale timeout. */ 1584 if (slot->state < MVS_SLOT_RUNNING) 1585 return; 1586 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1587 device_printf(dev, "iec %08x sstat %08x serr %08x edma_s %08x " 1588 "dma_c %08x dma_s %08x rs %08x status %02x\n", 1589 ATA_INL(ch->r_mem, EDMA_IEC), 1590 ATA_INL(ch->r_mem, SATA_SS), ATA_INL(ch->r_mem, SATA_SE), 1591 ATA_INL(ch->r_mem, EDMA_S), ATA_INL(ch->r_mem, DMA_C), 1592 ATA_INL(ch->r_mem, DMA_S), ch->rslots, 1593 ATA_INB(ch->r_mem, ATA_ALTSTAT)); 1594 /* Handle frozen command. */ 1595 mvs_requeue_frozen(dev); 1596 /* We wait for other commands timeout and pray. */ 1597 if (ch->toslots == 0) 1598 xpt_freeze_simq(ch->sim, 1); 1599 ch->toslots |= (1 << slot->slot); 1600 if ((ch->rslots & ~ch->toslots) == 0) 1601 mvs_process_timeout(dev); 1602 else 1603 device_printf(dev, " ... waiting for slots %08x\n", 1604 ch->rslots & ~ch->toslots); 1605} 1606 1607/* Must be called with channel locked. */ 1608static void 1609mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et) 1610{ 1611 device_t dev = slot->dev; 1612 struct mvs_channel *ch = device_get_softc(dev); 1613 union ccb *ccb = slot->ccb; 1614 int lastto; 1615 1616 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 1617 BUS_DMASYNC_POSTWRITE); 1618 /* Read result registers to the result struct 1619 * May be incorrect if several commands finished same time, 1620 * so read only when sure or have to. 1621 */ 1622 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1623 struct ata_res *res = &ccb->ataio.res; 1624 1625 if ((et == MVS_ERR_TFE) || 1626 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1627 mvs_tfd_read(dev, ccb); 1628 } else 1629 bzero(res, sizeof(*res)); 1630 } else { 1631 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1632 ch->basic_dma == 0) 1633 ccb->csio.resid = ccb->csio.dxfer_len - ch->donecount; 1634 } 1635 if (ch->numpslots == 0 || ch->basic_dma) { 1636 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1637 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1638 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1639 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1640 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1641 } 1642 } 1643 if (et != MVS_ERR_NONE) 1644 ch->eslots |= (1 << slot->slot); 1645 /* In case of error, freeze device for proper recovery. */ 1646 if ((et != MVS_ERR_NONE) && (!ch->recoverycmd) && 1647 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1648 xpt_freeze_devq(ccb->ccb_h.path, 1); 1649 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1650 } 1651 /* Set proper result status. */ 1652 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1653 switch (et) { 1654 case MVS_ERR_NONE: 1655 ccb->ccb_h.status |= CAM_REQ_CMP; 1656 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1657 ccb->csio.scsi_status = SCSI_STATUS_OK; 1658 break; 1659 case MVS_ERR_INVALID: 1660 ch->fatalerr = 1; 1661 ccb->ccb_h.status |= CAM_REQ_INVALID; 1662 break; 1663 case MVS_ERR_INNOCENT: 1664 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1665 break; 1666 case MVS_ERR_TFE: 1667 case MVS_ERR_NCQ: 1668 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1669 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1670 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1671 } else { 1672 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1673 } 1674 break; 1675 case MVS_ERR_SATA: 1676 ch->fatalerr = 1; 1677 if (!ch->recoverycmd) { 1678 xpt_freeze_simq(ch->sim, 1); 1679 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1680 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1681 } 1682 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1683 break; 1684 case MVS_ERR_TIMEOUT: 1685 if (!ch->recoverycmd) { 1686 xpt_freeze_simq(ch->sim, 1); 1687 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1688 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1689 } 1690 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1691 break; 1692 default: 1693 ch->fatalerr = 1; 1694 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1695 } 1696 /* Free slot. */ 1697 ch->oslots &= ~(1 << slot->slot); 1698 ch->rslots &= ~(1 << slot->slot); 1699 ch->aslots &= ~(1 << slot->slot); 1700 slot->state = MVS_SLOT_EMPTY; 1701 slot->ccb = NULL; 1702 /* Update channel stats. */ 1703 ch->numrslots--; 1704 ch->numrslotspd[ccb->ccb_h.target_id]--; 1705 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1706 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1707 ch->otagspd[ccb->ccb_h.target_id] &= ~(1 << slot->tag); 1708 ch->numtslots--; 1709 ch->numtslotspd[ccb->ccb_h.target_id]--; 1710 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1711 ch->numdslots--; 1712 } else { 1713 ch->numpslots--; 1714 } 1715 } else { 1716 ch->numpslots--; 1717 ch->basic_dma = 0; 1718 } 1719 /* Cancel timeout state if request completed normally. */ 1720 if (et != MVS_ERR_TIMEOUT) { 1721 lastto = (ch->toslots == (1 << slot->slot)); 1722 ch->toslots &= ~(1 << slot->slot); 1723 if (lastto) 1724 xpt_release_simq(ch->sim, TRUE); 1725 } 1726 /* If it was our READ LOG command - process it. */ 1727 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 1728 mvs_process_read_log(dev, ccb); 1729 /* If it was our REQUEST SENSE command - process it. */ 1730 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 1731 mvs_process_request_sense(dev, ccb); 1732 /* If it was NCQ or ATAPI command error, put result on hold. */ 1733 } else if (et == MVS_ERR_NCQ || 1734 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 1735 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 1736 ch->hold[slot->slot] = ccb; 1737 ch->holdtag[slot->slot] = slot->tag; 1738 ch->numhslots++; 1739 } else 1740 xpt_done(ccb); 1741 /* If we have no other active commands, ... */ 1742 if (ch->rslots == 0) { 1743 /* if there was fatal error - reset port. */ 1744 if (ch->toslots != 0 || ch->fatalerr) { 1745 mvs_reset(dev); 1746 } else { 1747 /* if we have slots in error, we can reinit port. */ 1748 if (ch->eslots != 0) { 1749 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1750 ch->eslots = 0; 1751 } 1752 /* if there commands on hold, we can do READ LOG. */ 1753 if (!ch->recoverycmd && ch->numhslots) 1754 mvs_issue_recovery(dev); 1755 } 1756 /* If all the rest of commands are in timeout - give them chance. */ 1757 } else if ((ch->rslots & ~ch->toslots) == 0 && 1758 et != MVS_ERR_TIMEOUT) 1759 mvs_rearm_timeout(dev); 1760 /* Unfreeze frozen command. */ 1761 if (ch->frozen && !mvs_check_collision(dev, ch->frozen)) { 1762 union ccb *fccb = ch->frozen; 1763 ch->frozen = NULL; 1764 mvs_begin_transaction(dev, fccb); 1765 xpt_release_simq(ch->sim, TRUE); 1766 } 1767 /* Start PM timer. */ 1768 if (ch->numrslots == 0 && ch->pm_level > 3 && 1769 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 1770 callout_schedule(&ch->pm_timer, 1771 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 1772 } 1773} 1774 1775static void 1776mvs_issue_recovery(device_t dev) 1777{ 1778 struct mvs_channel *ch = device_get_softc(dev); 1779 union ccb *ccb; 1780 struct ccb_ataio *ataio; 1781 struct ccb_scsiio *csio; 1782 int i; 1783 1784 /* Find some held command. */ 1785 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1786 if (ch->hold[i]) 1787 break; 1788 } 1789 ccb = xpt_alloc_ccb_nowait(); 1790 if (ccb == NULL) { 1791 device_printf(dev, "Unable to allocate recovery command\n"); 1792completeall: 1793 /* We can't do anything -- complete held commands. */ 1794 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1795 if (ch->hold[i] == NULL) 1796 continue; 1797 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1798 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 1799 xpt_done(ch->hold[i]); 1800 ch->hold[i] = NULL; 1801 ch->numhslots--; 1802 } 1803 mvs_reset(dev); 1804 return; 1805 } 1806 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 1807 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1808 /* READ LOG */ 1809 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 1810 ccb->ccb_h.func_code = XPT_ATA_IO; 1811 ccb->ccb_h.flags = CAM_DIR_IN; 1812 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1813 ataio = &ccb->ataio; 1814 ataio->data_ptr = malloc(512, M_MVS, M_NOWAIT); 1815 if (ataio->data_ptr == NULL) { 1816 xpt_free_ccb(ccb); 1817 device_printf(dev, 1818 "Unable to allocate memory for READ LOG command\n"); 1819 goto completeall; 1820 } 1821 ataio->dxfer_len = 512; 1822 bzero(&ataio->cmd, sizeof(ataio->cmd)); 1823 ataio->cmd.flags = CAM_ATAIO_48BIT; 1824 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 1825 ataio->cmd.sector_count = 1; 1826 ataio->cmd.sector_count_exp = 0; 1827 ataio->cmd.lba_low = 0x10; 1828 ataio->cmd.lba_mid = 0; 1829 ataio->cmd.lba_mid_exp = 0; 1830 } else { 1831 /* REQUEST SENSE */ 1832 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 1833 ccb->ccb_h.recovery_slot = i; 1834 ccb->ccb_h.func_code = XPT_SCSI_IO; 1835 ccb->ccb_h.flags = CAM_DIR_IN; 1836 ccb->ccb_h.status = 0; 1837 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1838 csio = &ccb->csio; 1839 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 1840 csio->dxfer_len = ch->hold[i]->csio.sense_len; 1841 csio->cdb_len = 6; 1842 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 1843 csio->cdb_io.cdb_bytes[0] = 0x03; 1844 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 1845 } 1846 /* Freeze SIM while doing recovery. */ 1847 ch->recoverycmd = 1; 1848 xpt_freeze_simq(ch->sim, 1); 1849 mvs_begin_transaction(dev, ccb); 1850} 1851 1852static void 1853mvs_process_read_log(device_t dev, union ccb *ccb) 1854{ 1855 struct mvs_channel *ch = device_get_softc(dev); 1856 uint8_t *data; 1857 struct ata_res *res; 1858 int i; 1859 1860 ch->recoverycmd = 0; 1861 1862 data = ccb->ataio.data_ptr; 1863 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1864 (data[0] & 0x80) == 0) { 1865 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1866 if (!ch->hold[i]) 1867 continue; 1868 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1869 continue; 1870 if ((data[0] & 0x1F) == ch->holdtag[i]) { 1871 res = &ch->hold[i]->ataio.res; 1872 res->status = data[2]; 1873 res->error = data[3]; 1874 res->lba_low = data[4]; 1875 res->lba_mid = data[5]; 1876 res->lba_high = data[6]; 1877 res->device = data[7]; 1878 res->lba_low_exp = data[8]; 1879 res->lba_mid_exp = data[9]; 1880 res->lba_high_exp = data[10]; 1881 res->sector_count = data[12]; 1882 res->sector_count_exp = data[13]; 1883 } else { 1884 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1885 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 1886 } 1887 xpt_done(ch->hold[i]); 1888 ch->hold[i] = NULL; 1889 ch->numhslots--; 1890 } 1891 } else { 1892 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1893 device_printf(dev, "Error while READ LOG EXT\n"); 1894 else if ((data[0] & 0x80) == 0) { 1895 device_printf(dev, 1896 "Non-queued command error in READ LOG EXT\n"); 1897 } 1898 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1899 if (!ch->hold[i]) 1900 continue; 1901 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1902 continue; 1903 xpt_done(ch->hold[i]); 1904 ch->hold[i] = NULL; 1905 ch->numhslots--; 1906 } 1907 } 1908 free(ccb->ataio.data_ptr, M_MVS); 1909 xpt_free_ccb(ccb); 1910 xpt_release_simq(ch->sim, TRUE); 1911} 1912 1913static void 1914mvs_process_request_sense(device_t dev, union ccb *ccb) 1915{ 1916 struct mvs_channel *ch = device_get_softc(dev); 1917 int i; 1918 1919 ch->recoverycmd = 0; 1920 1921 i = ccb->ccb_h.recovery_slot; 1922 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1923 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 1924 } else { 1925 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1926 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 1927 } 1928 xpt_done(ch->hold[i]); 1929 ch->hold[i] = NULL; 1930 ch->numhslots--; 1931 xpt_free_ccb(ccb); 1932 xpt_release_simq(ch->sim, TRUE); 1933} 1934 1935static int 1936mvs_wait(device_t dev, u_int s, u_int c, int t) 1937{ 1938 int timeout = 0; 1939 uint8_t st; 1940 1941 while (((st = mvs_getstatus(dev, 0)) & (s | c)) != s) { 1942 if (timeout >= t) { 1943 if (t != 0) 1944 device_printf(dev, "Wait status %02x\n", st); 1945 return (-1); 1946 } 1947 DELAY(1000); 1948 timeout++; 1949 } 1950 return (timeout); 1951} 1952 1953static void 1954mvs_requeue_frozen(device_t dev) 1955{ 1956 struct mvs_channel *ch = device_get_softc(dev); 1957 union ccb *fccb = ch->frozen; 1958 1959 if (fccb) { 1960 ch->frozen = NULL; 1961 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1962 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1963 xpt_freeze_devq(fccb->ccb_h.path, 1); 1964 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1965 } 1966 xpt_done(fccb); 1967 } 1968} 1969 1970static void 1971mvs_reset_to(void *arg) 1972{ 1973 device_t dev = arg; 1974 struct mvs_channel *ch = device_get_softc(dev); 1975 int t; 1976 1977 if (ch->resetting == 0) 1978 return; 1979 ch->resetting--; 1980 if ((t = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, 0)) >= 0) { 1981 if (bootverbose) { 1982 device_printf(dev, 1983 "MVS reset: device ready after %dms\n", 1984 (310 - ch->resetting) * 100); 1985 } 1986 ch->resetting = 0; 1987 xpt_release_simq(ch->sim, TRUE); 1988 return; 1989 } 1990 if (ch->resetting == 0) { 1991 device_printf(dev, 1992 "MVS reset: device not ready after 31000ms\n"); 1993 xpt_release_simq(ch->sim, TRUE); 1994 return; 1995 } 1996 callout_schedule(&ch->reset_timer, hz / 10); 1997} 1998 1999static void 2000mvs_errata(device_t dev) 2001{ 2002 struct mvs_channel *ch = device_get_softc(dev); 2003 uint32_t val; 2004 2005 if (ch->quirks & MVS_Q_SOC65) { 2006 val = ATA_INL(ch->r_mem, SATA_PHYM3); 2007 val &= ~(0x3 << 27); /* SELMUPF = 1 */ 2008 val |= (0x1 << 27); 2009 val &= ~(0x3 << 29); /* SELMUPI = 1 */ 2010 val |= (0x1 << 29); 2011 ATA_OUTL(ch->r_mem, SATA_PHYM3, val); 2012 2013 val = ATA_INL(ch->r_mem, SATA_PHYM4); 2014 val &= ~0x1; /* SATU_OD8 = 0 */ 2015 val |= (0x1 << 16); /* reserved bit 16 = 1 */ 2016 ATA_OUTL(ch->r_mem, SATA_PHYM4, val); 2017 2018 val = ATA_INL(ch->r_mem, SATA_PHYM9_GEN2); 2019 val &= ~0xf; /* TXAMP[3:0] = 8 */ 2020 val |= 0x8; 2021 val &= ~(0x1 << 14); /* TXAMP[4] = 0 */ 2022 ATA_OUTL(ch->r_mem, SATA_PHYM9_GEN2, val); 2023 2024 val = ATA_INL(ch->r_mem, SATA_PHYM9_GEN1); 2025 val &= ~0xf; /* TXAMP[3:0] = 8 */ 2026 val |= 0x8; 2027 val &= ~(0x1 << 14); /* TXAMP[4] = 0 */ 2028 ATA_OUTL(ch->r_mem, SATA_PHYM9_GEN1, val); 2029 } 2030} 2031 2032static void 2033mvs_reset(device_t dev) 2034{ 2035 struct mvs_channel *ch = device_get_softc(dev); 2036 int i; 2037 2038 xpt_freeze_simq(ch->sim, 1); 2039 if (bootverbose) 2040 device_printf(dev, "MVS reset...\n"); 2041 /* Forget about previous reset. */ 2042 if (ch->resetting) { 2043 ch->resetting = 0; 2044 callout_stop(&ch->reset_timer); 2045 xpt_release_simq(ch->sim, TRUE); 2046 } 2047 /* Requeue freezed command. */ 2048 mvs_requeue_frozen(dev); 2049 /* Kill the engine and requeue all running commands. */ 2050 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2051 ATA_OUTL(ch->r_mem, DMA_C, 0); 2052 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2053 /* Do we have a running request on slot? */ 2054 if (ch->slot[i].state < MVS_SLOT_RUNNING) 2055 continue; 2056 /* XXX; Commands in loading state. */ 2057 mvs_end_transaction(&ch->slot[i], MVS_ERR_INNOCENT); 2058 } 2059 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2060 if (!ch->hold[i]) 2061 continue; 2062 xpt_done(ch->hold[i]); 2063 ch->hold[i] = NULL; 2064 ch->numhslots--; 2065 } 2066 if (ch->toslots != 0) 2067 xpt_release_simq(ch->sim, TRUE); 2068 ch->eslots = 0; 2069 ch->toslots = 0; 2070 ch->fatalerr = 0; 2071 ch->fake_busy = 0; 2072 /* Tell the XPT about the event */ 2073 xpt_async(AC_BUS_RESET, ch->path, NULL); 2074 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 2075 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EATARST); 2076 DELAY(25); 2077 ATA_OUTL(ch->r_mem, EDMA_CMD, 0); 2078 mvs_errata(dev); 2079 /* Reset and reconnect PHY, */ 2080 if (!mvs_sata_phy_reset(dev)) { 2081 if (bootverbose) 2082 device_printf(dev, "MVS reset: device not found\n"); 2083 ch->devices = 0; 2084 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2085 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2086 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2087 xpt_release_simq(ch->sim, TRUE); 2088 return; 2089 } 2090 if (bootverbose) 2091 device_printf(dev, "MVS reset: device found\n"); 2092 /* Wait for clearing busy status. */ 2093 if ((i = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, 2094 dumping ? 31000 : 0)) < 0) { 2095 if (dumping) { 2096 device_printf(dev, 2097 "MVS reset: device not ready after 31000ms\n"); 2098 } else 2099 ch->resetting = 310; 2100 } else if (bootverbose) 2101 device_printf(dev, "MVS reset: device ready after %dms\n", i); 2102 ch->devices = 1; 2103 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2104 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2105 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2106 if (ch->resetting) 2107 callout_reset(&ch->reset_timer, hz / 10, mvs_reset_to, dev); 2108 else 2109 xpt_release_simq(ch->sim, TRUE); 2110} 2111 2112static void 2113mvs_softreset(device_t dev, union ccb *ccb) 2114{ 2115 struct mvs_channel *ch = device_get_softc(dev); 2116 int port = ccb->ccb_h.target_id & 0x0f; 2117 int i, stuck; 2118 uint8_t status; 2119 2120 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2121 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 2122 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2123 DELAY(10000); 2124 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2125 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2126 /* Wait for clearing busy status. */ 2127 if ((i = mvs_wait(dev, 0, ATA_S_BUSY, ccb->ccb_h.timeout)) < 0) { 2128 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2129 stuck = 1; 2130 } else { 2131 status = mvs_getstatus(dev, 0); 2132 if (status & ATA_S_ERROR) 2133 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2134 else 2135 ccb->ccb_h.status |= CAM_REQ_CMP; 2136 if (status & ATA_S_DRQ) 2137 stuck = 1; 2138 else 2139 stuck = 0; 2140 } 2141 mvs_tfd_read(dev, ccb); 2142 2143 /* 2144 * XXX: If some device on PMP failed to soft-reset, 2145 * try to recover by sending dummy soft-reset to PMP. 2146 */ 2147 if (stuck && ch->pm_present && port != 15) { 2148 ATA_OUTB(ch->r_mem, SATA_SATAICTL, 2149 15 << SATA_SATAICTL_PMPTX_SHIFT); 2150 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2151 DELAY(10000); 2152 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2153 mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, ccb->ccb_h.timeout); 2154 } 2155 2156 xpt_done(ccb); 2157} 2158 2159static int 2160mvs_sata_connect(struct mvs_channel *ch) 2161{ 2162 u_int32_t status; 2163 int timeout, found = 0; 2164 2165 /* Wait up to 100ms for "connect well" */ 2166 for (timeout = 0; timeout < 1000 ; timeout++) { 2167 status = ATA_INL(ch->r_mem, SATA_SS); 2168 if ((status & SATA_SS_DET_MASK) != SATA_SS_DET_NO_DEVICE) 2169 found = 1; 2170 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 2171 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 2172 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) 2173 break; 2174 if ((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_OFFLINE) { 2175 if (bootverbose) { 2176 device_printf(ch->dev, "SATA offline status=%08x\n", 2177 status); 2178 } 2179 return (0); 2180 } 2181 if (found == 0 && timeout >= 100) 2182 break; 2183 DELAY(100); 2184 } 2185 if (timeout >= 1000 || !found) { 2186 if (bootverbose) { 2187 device_printf(ch->dev, 2188 "SATA connect timeout time=%dus status=%08x\n", 2189 timeout * 100, status); 2190 } 2191 return (0); 2192 } 2193 if (bootverbose) { 2194 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2195 timeout * 100, status); 2196 } 2197 /* Clear SATA error register */ 2198 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2199 return (1); 2200} 2201 2202static int 2203mvs_sata_phy_reset(device_t dev) 2204{ 2205 struct mvs_channel *ch = device_get_softc(dev); 2206 int sata_rev; 2207 uint32_t val; 2208 2209 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2210 if (sata_rev == 1) 2211 val = SATA_SC_SPD_SPEED_GEN1; 2212 else if (sata_rev == 2) 2213 val = SATA_SC_SPD_SPEED_GEN2; 2214 else if (sata_rev == 3) 2215 val = SATA_SC_SPD_SPEED_GEN3; 2216 else 2217 val = 0; 2218 ATA_OUTL(ch->r_mem, SATA_SC, 2219 SATA_SC_DET_RESET | val | 2220 SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER); 2221 DELAY(1000); 2222 ATA_OUTL(ch->r_mem, SATA_SC, 2223 SATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2224 (SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER))); 2225 if (!mvs_sata_connect(ch)) { 2226 if (ch->pm_level > 0) 2227 ATA_OUTL(ch->r_mem, SATA_SC, SATA_SC_DET_DISABLE); 2228 return (0); 2229 } 2230 return (1); 2231} 2232 2233static int 2234mvs_check_ids(device_t dev, union ccb *ccb) 2235{ 2236 struct mvs_channel *ch = device_get_softc(dev); 2237 2238 if (ccb->ccb_h.target_id > ((ch->quirks & MVS_Q_GENI) ? 0 : 15)) { 2239 ccb->ccb_h.status = CAM_TID_INVALID; 2240 xpt_done(ccb); 2241 return (-1); 2242 } 2243 if (ccb->ccb_h.target_lun != 0) { 2244 ccb->ccb_h.status = CAM_LUN_INVALID; 2245 xpt_done(ccb); 2246 return (-1); 2247 } 2248 /* 2249 * It's a programming error to see AUXILIARY register requests. 2250 */ 2251 KASSERT(ccb->ccb_h.func_code != XPT_ATA_IO || 2252 ((ccb->ataio.ata_flags & ATA_FLAG_AUX) == 0), 2253 ("AUX register unsupported")); 2254 return (0); 2255} 2256 2257static void 2258mvsaction(struct cam_sim *sim, union ccb *ccb) 2259{ 2260 device_t dev, parent; 2261 struct mvs_channel *ch; 2262 2263 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mvsaction func_code=%x\n", 2264 ccb->ccb_h.func_code)); 2265 2266 ch = (struct mvs_channel *)cam_sim_softc(sim); 2267 dev = ch->dev; 2268 switch (ccb->ccb_h.func_code) { 2269 /* Common cases first */ 2270 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2271 case XPT_SCSI_IO: 2272 if (mvs_check_ids(dev, ccb)) 2273 return; 2274 if (ch->devices == 0 || 2275 (ch->pm_present == 0 && 2276 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2277 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2278 break; 2279 } 2280 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2281 /* Check for command collision. */ 2282 if (mvs_check_collision(dev, ccb)) { 2283 /* Freeze command. */ 2284 ch->frozen = ccb; 2285 /* We have only one frozen slot, so freeze simq also. */ 2286 xpt_freeze_simq(ch->sim, 1); 2287 return; 2288 } 2289 mvs_begin_transaction(dev, ccb); 2290 return; 2291 case XPT_ABORT: /* Abort the specified CCB */ 2292 /* XXX Implement */ 2293 ccb->ccb_h.status = CAM_REQ_INVALID; 2294 break; 2295 case XPT_SET_TRAN_SETTINGS: 2296 { 2297 struct ccb_trans_settings *cts = &ccb->cts; 2298 struct mvs_device *d; 2299 2300 if (mvs_check_ids(dev, ccb)) 2301 return; 2302 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2303 d = &ch->curr[ccb->ccb_h.target_id]; 2304 else 2305 d = &ch->user[ccb->ccb_h.target_id]; 2306 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2307 d->revision = cts->xport_specific.sata.revision; 2308 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2309 d->mode = cts->xport_specific.sata.mode; 2310 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) { 2311 d->bytecount = min((ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048, 2312 cts->xport_specific.sata.bytecount); 2313 } 2314 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2315 d->tags = min(MVS_MAX_SLOTS, cts->xport_specific.sata.tags); 2316 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2317 ch->pm_present = cts->xport_specific.sata.pm_present; 2318 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2319 d->atapi = cts->xport_specific.sata.atapi; 2320 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2321 d->caps = cts->xport_specific.sata.caps; 2322 ccb->ccb_h.status = CAM_REQ_CMP; 2323 break; 2324 } 2325 case XPT_GET_TRAN_SETTINGS: 2326 /* Get default/user set transfer settings for the target */ 2327 { 2328 struct ccb_trans_settings *cts = &ccb->cts; 2329 struct mvs_device *d; 2330 uint32_t status; 2331 2332 if (mvs_check_ids(dev, ccb)) 2333 return; 2334 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2335 d = &ch->curr[ccb->ccb_h.target_id]; 2336 else 2337 d = &ch->user[ccb->ccb_h.target_id]; 2338 cts->protocol = PROTO_UNSPECIFIED; 2339 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2340 cts->transport = XPORT_SATA; 2341 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2342 cts->proto_specific.valid = 0; 2343 cts->xport_specific.sata.valid = 0; 2344 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2345 (ccb->ccb_h.target_id == 15 || 2346 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2347 status = ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_SPD_MASK; 2348 if (status & 0x0f0) { 2349 cts->xport_specific.sata.revision = 2350 (status & 0x0f0) >> 4; 2351 cts->xport_specific.sata.valid |= 2352 CTS_SATA_VALID_REVISION; 2353 } 2354 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2355// if (ch->pm_level) 2356// cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2357 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2358 cts->xport_specific.sata.caps &= 2359 ch->user[ccb->ccb_h.target_id].caps; 2360 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2361 } else { 2362 cts->xport_specific.sata.revision = d->revision; 2363 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2364 cts->xport_specific.sata.caps = d->caps; 2365 if (cts->type == CTS_TYPE_CURRENT_SETTINGS/* && 2366 (ch->quirks & MVS_Q_GENIIE) == 0*/) 2367 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN; 2368 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2369 } 2370 cts->xport_specific.sata.mode = d->mode; 2371 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2372 cts->xport_specific.sata.bytecount = d->bytecount; 2373 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2374 cts->xport_specific.sata.pm_present = ch->pm_present; 2375 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2376 cts->xport_specific.sata.tags = d->tags; 2377 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2378 cts->xport_specific.sata.atapi = d->atapi; 2379 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2380 ccb->ccb_h.status = CAM_REQ_CMP; 2381 break; 2382 } 2383 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2384 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2385 mvs_reset(dev); 2386 ccb->ccb_h.status = CAM_REQ_CMP; 2387 break; 2388 case XPT_TERM_IO: /* Terminate the I/O process */ 2389 /* XXX Implement */ 2390 ccb->ccb_h.status = CAM_REQ_INVALID; 2391 break; 2392 case XPT_PATH_INQ: /* Path routing inquiry */ 2393 { 2394 struct ccb_pathinq *cpi = &ccb->cpi; 2395 2396 parent = device_get_parent(dev); 2397 cpi->version_num = 1; /* XXX??? */ 2398 cpi->hba_inquiry = PI_SDTR_ABLE; 2399 if (!(ch->quirks & MVS_Q_GENI)) { 2400 cpi->hba_inquiry |= PI_SATAPM; 2401 /* Gen-II is extremely slow with NCQ on PMP. */ 2402 if ((ch->quirks & MVS_Q_GENIIE) || ch->pm_present == 0) 2403 cpi->hba_inquiry |= PI_TAG_ABLE; 2404 } 2405 cpi->target_sprt = 0; 2406 cpi->hba_misc = PIM_SEQSCAN; 2407 cpi->hba_eng_cnt = 0; 2408 if (!(ch->quirks & MVS_Q_GENI)) 2409 cpi->max_target = 15; 2410 else 2411 cpi->max_target = 0; 2412 cpi->max_lun = 0; 2413 cpi->initiator_id = 0; 2414 cpi->bus_id = cam_sim_bus(sim); 2415 cpi->base_transfer_speed = 150000; 2416 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2417 strlcpy(cpi->hba_vid, "Marvell", HBA_IDLEN); 2418 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2419 cpi->unit_number = cam_sim_unit(sim); 2420 cpi->transport = XPORT_SATA; 2421 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2422 cpi->protocol = PROTO_ATA; 2423 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2424 cpi->maxio = MAXPHYS; 2425 if ((ch->quirks & MVS_Q_SOC) == 0) { 2426 cpi->hba_vendor = pci_get_vendor(parent); 2427 cpi->hba_device = pci_get_device(parent); 2428 cpi->hba_subvendor = pci_get_subvendor(parent); 2429 cpi->hba_subdevice = pci_get_subdevice(parent); 2430 } 2431 cpi->ccb_h.status = CAM_REQ_CMP; 2432 break; 2433 } 2434 default: 2435 ccb->ccb_h.status = CAM_REQ_INVALID; 2436 break; 2437 } 2438 xpt_done(ccb); 2439} 2440 2441static void 2442mvspoll(struct cam_sim *sim) 2443{ 2444 struct mvs_channel *ch = (struct mvs_channel *)cam_sim_softc(sim); 2445 struct mvs_intr_arg arg; 2446 2447 arg.arg = ch->dev; 2448 arg.cause = 2 | 4; /* XXX */ 2449 mvs_ch_intr(&arg); 2450 if (ch->resetting != 0 && 2451 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2452 ch->resetpolldiv = 1000; 2453 mvs_reset_to(ch->dev); 2454 } 2455} 2456 2457