mvs.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: stable/11/sys/dev/mvs/mvs.c 330897 2018-03-14 03:19:51Z eadler $"); 31 32#include <sys/param.h> 33#include <sys/module.h> 34#include <sys/systm.h> 35#include <sys/kernel.h> 36#include <sys/ata.h> 37#include <sys/bus.h> 38#include <sys/conf.h> 39#include <sys/endian.h> 40#include <sys/malloc.h> 41#include <sys/lock.h> 42#include <sys/mutex.h> 43#include <vm/uma.h> 44#include <machine/stdarg.h> 45#include <machine/resource.h> 46#include <machine/bus.h> 47#include <sys/rman.h> 48#include <dev/pci/pcivar.h> 49#include "mvs.h" 50 51#include <cam/cam.h> 52#include <cam/cam_ccb.h> 53#include <cam/cam_sim.h> 54#include <cam/cam_xpt_sim.h> 55#include <cam/cam_debug.h> 56 57/* local prototypes */ 58static int mvs_ch_init(device_t dev); 59static int mvs_ch_deinit(device_t dev); 60static int mvs_ch_suspend(device_t dev); 61static int mvs_ch_resume(device_t dev); 62static void mvs_dmainit(device_t dev); 63static void mvs_dmasetupc_cb(void *xsc, 64 bus_dma_segment_t *segs, int nsegs, int error); 65static void mvs_dmafini(device_t dev); 66static void mvs_slotsalloc(device_t dev); 67static void mvs_slotsfree(device_t dev); 68static void mvs_setup_edma_queues(device_t dev); 69static void mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode); 70static void mvs_ch_pm(void *arg); 71static void mvs_ch_intr_locked(void *data); 72static void mvs_ch_intr(void *data); 73static void mvs_reset(device_t dev); 74static void mvs_softreset(device_t dev, union ccb *ccb); 75 76static int mvs_sata_connect(struct mvs_channel *ch); 77static int mvs_sata_phy_reset(device_t dev); 78static int mvs_wait(device_t dev, u_int s, u_int c, int t); 79static void mvs_tfd_read(device_t dev, union ccb *ccb); 80static void mvs_tfd_write(device_t dev, union ccb *ccb); 81static void mvs_legacy_intr(device_t dev, int poll); 82static void mvs_crbq_intr(device_t dev); 83static void mvs_begin_transaction(device_t dev, union ccb *ccb); 84static void mvs_legacy_execute_transaction(struct mvs_slot *slot); 85static void mvs_timeout(struct mvs_slot *slot); 86static void mvs_dmasetprd(void *arg, 87 bus_dma_segment_t *segs, int nsegs, int error); 88static void mvs_requeue_frozen(device_t dev); 89static void mvs_execute_transaction(struct mvs_slot *slot); 90static void mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et); 91 92static void mvs_issue_recovery(device_t dev); 93static void mvs_process_read_log(device_t dev, union ccb *ccb); 94static void mvs_process_request_sense(device_t dev, union ccb *ccb); 95 96static void mvsaction(struct cam_sim *sim, union ccb *ccb); 97static void mvspoll(struct cam_sim *sim); 98 99static MALLOC_DEFINE(M_MVS, "MVS driver", "MVS driver data buffers"); 100 101#define recovery_type spriv_field0 102#define RECOVERY_NONE 0 103#define RECOVERY_READ_LOG 1 104#define RECOVERY_REQUEST_SENSE 2 105#define recovery_slot spriv_field1 106 107static int 108mvs_ch_probe(device_t dev) 109{ 110 111 device_set_desc_copy(dev, "Marvell SATA channel"); 112 return (BUS_PROBE_DEFAULT); 113} 114 115static int 116mvs_ch_attach(device_t dev) 117{ 118 struct mvs_controller *ctlr = device_get_softc(device_get_parent(dev)); 119 struct mvs_channel *ch = device_get_softc(dev); 120 struct cam_devq *devq; 121 int rid, error, i, sata_rev = 0; 122 123 ch->dev = dev; 124 ch->unit = (intptr_t)device_get_ivars(dev); 125 ch->quirks = ctlr->quirks; 126 mtx_init(&ch->mtx, "MVS channel lock", NULL, MTX_DEF); 127 ch->pm_level = 0; 128 resource_int_value(device_get_name(dev), 129 device_get_unit(dev), "pm_level", &ch->pm_level); 130 if (ch->pm_level > 3) 131 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 132 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 133 resource_int_value(device_get_name(dev), 134 device_get_unit(dev), "sata_rev", &sata_rev); 135 for (i = 0; i < 16; i++) { 136 ch->user[i].revision = sata_rev; 137 ch->user[i].mode = 0; 138 ch->user[i].bytecount = (ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048; 139 ch->user[i].tags = MVS_MAX_SLOTS; 140 ch->curr[i] = ch->user[i]; 141 if (ch->pm_level) { 142 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 143 CTS_SATA_CAPS_H_APST | 144 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 145 } 146 ch->user[i].caps |= CTS_SATA_CAPS_H_AN; 147 } 148 rid = ch->unit; 149 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 150 &rid, RF_ACTIVE))) 151 return (ENXIO); 152 mvs_dmainit(dev); 153 mvs_slotsalloc(dev); 154 mvs_ch_init(dev); 155 mtx_lock(&ch->mtx); 156 rid = ATA_IRQ_RID; 157 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 158 &rid, RF_SHAREABLE | RF_ACTIVE))) { 159 device_printf(dev, "Unable to map interrupt\n"); 160 error = ENXIO; 161 goto err0; 162 } 163 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 164 mvs_ch_intr_locked, dev, &ch->ih))) { 165 device_printf(dev, "Unable to setup interrupt\n"); 166 error = ENXIO; 167 goto err1; 168 } 169 /* Create the device queue for our SIM. */ 170 devq = cam_simq_alloc(MVS_MAX_SLOTS - 1); 171 if (devq == NULL) { 172 device_printf(dev, "Unable to allocate simq\n"); 173 error = ENOMEM; 174 goto err1; 175 } 176 /* Construct SIM entry */ 177 ch->sim = cam_sim_alloc(mvsaction, mvspoll, "mvsch", ch, 178 device_get_unit(dev), &ch->mtx, 179 2, (ch->quirks & MVS_Q_GENI) ? 0 : MVS_MAX_SLOTS - 1, 180 devq); 181 if (ch->sim == NULL) { 182 cam_simq_free(devq); 183 device_printf(dev, "unable to allocate sim\n"); 184 error = ENOMEM; 185 goto err1; 186 } 187 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 188 device_printf(dev, "unable to register xpt bus\n"); 189 error = ENXIO; 190 goto err2; 191 } 192 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 193 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 194 device_printf(dev, "unable to create path\n"); 195 error = ENXIO; 196 goto err3; 197 } 198 if (ch->pm_level > 3) { 199 callout_reset(&ch->pm_timer, 200 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 201 mvs_ch_pm, dev); 202 } 203 mtx_unlock(&ch->mtx); 204 return (0); 205 206err3: 207 xpt_bus_deregister(cam_sim_path(ch->sim)); 208err2: 209 cam_sim_free(ch->sim, /*free_devq*/TRUE); 210err1: 211 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 212err0: 213 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 214 mtx_unlock(&ch->mtx); 215 mtx_destroy(&ch->mtx); 216 return (error); 217} 218 219static int 220mvs_ch_detach(device_t dev) 221{ 222 struct mvs_channel *ch = device_get_softc(dev); 223 224 mtx_lock(&ch->mtx); 225 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 226 /* Forget about reset. */ 227 if (ch->resetting) { 228 ch->resetting = 0; 229 xpt_release_simq(ch->sim, TRUE); 230 } 231 xpt_free_path(ch->path); 232 xpt_bus_deregister(cam_sim_path(ch->sim)); 233 cam_sim_free(ch->sim, /*free_devq*/TRUE); 234 mtx_unlock(&ch->mtx); 235 236 if (ch->pm_level > 3) 237 callout_drain(&ch->pm_timer); 238 callout_drain(&ch->reset_timer); 239 bus_teardown_intr(dev, ch->r_irq, ch->ih); 240 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 241 242 mvs_ch_deinit(dev); 243 mvs_slotsfree(dev); 244 mvs_dmafini(dev); 245 246 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 247 mtx_destroy(&ch->mtx); 248 return (0); 249} 250 251static int 252mvs_ch_init(device_t dev) 253{ 254 struct mvs_channel *ch = device_get_softc(dev); 255 uint32_t reg; 256 257 /* Disable port interrupts */ 258 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 259 /* Stop EDMA */ 260 ch->curr_mode = MVS_EDMA_UNKNOWN; 261 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 262 /* Clear and configure FIS interrupts. */ 263 ATA_OUTL(ch->r_mem, SATA_FISIC, 0); 264 reg = ATA_INL(ch->r_mem, SATA_FISC); 265 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 266 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 267 reg = ATA_INL(ch->r_mem, SATA_FISIM); 268 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 269 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 270 /* Clear SATA error register. */ 271 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 272 /* Clear any outstanding error interrupts. */ 273 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 274 /* Unmask all error interrupts */ 275 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 276 return (0); 277} 278 279static int 280mvs_ch_deinit(device_t dev) 281{ 282 struct mvs_channel *ch = device_get_softc(dev); 283 284 /* Stop EDMA */ 285 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 286 /* Disable port interrupts. */ 287 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 288 return (0); 289} 290 291static int 292mvs_ch_suspend(device_t dev) 293{ 294 struct mvs_channel *ch = device_get_softc(dev); 295 296 mtx_lock(&ch->mtx); 297 xpt_freeze_simq(ch->sim, 1); 298 while (ch->oslots) 299 msleep(ch, &ch->mtx, PRIBIO, "mvssusp", hz/100); 300 /* Forget about reset. */ 301 if (ch->resetting) { 302 ch->resetting = 0; 303 callout_stop(&ch->reset_timer); 304 xpt_release_simq(ch->sim, TRUE); 305 } 306 mvs_ch_deinit(dev); 307 mtx_unlock(&ch->mtx); 308 return (0); 309} 310 311static int 312mvs_ch_resume(device_t dev) 313{ 314 struct mvs_channel *ch = device_get_softc(dev); 315 316 mtx_lock(&ch->mtx); 317 mvs_ch_init(dev); 318 mvs_reset(dev); 319 xpt_release_simq(ch->sim, TRUE); 320 mtx_unlock(&ch->mtx); 321 return (0); 322} 323 324struct mvs_dc_cb_args { 325 bus_addr_t maddr; 326 int error; 327}; 328 329static void 330mvs_dmainit(device_t dev) 331{ 332 struct mvs_channel *ch = device_get_softc(dev); 333 struct mvs_dc_cb_args dcba; 334 335 /* EDMA command request area. */ 336 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 337 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 338 NULL, NULL, MVS_WORKRQ_SIZE, 1, MVS_WORKRQ_SIZE, 339 0, NULL, NULL, &ch->dma.workrq_tag)) 340 goto error; 341 if (bus_dmamem_alloc(ch->dma.workrq_tag, (void **)&ch->dma.workrq, 0, 342 &ch->dma.workrq_map)) 343 goto error; 344 if (bus_dmamap_load(ch->dma.workrq_tag, ch->dma.workrq_map, 345 ch->dma.workrq, MVS_WORKRQ_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 346 dcba.error) { 347 bus_dmamem_free(ch->dma.workrq_tag, 348 ch->dma.workrq, ch->dma.workrq_map); 349 goto error; 350 } 351 ch->dma.workrq_bus = dcba.maddr; 352 /* EDMA command response area. */ 353 if (bus_dma_tag_create(bus_get_dma_tag(dev), 256, 0, 354 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 355 NULL, NULL, MVS_WORKRP_SIZE, 1, MVS_WORKRP_SIZE, 356 0, NULL, NULL, &ch->dma.workrp_tag)) 357 goto error; 358 if (bus_dmamem_alloc(ch->dma.workrp_tag, (void **)&ch->dma.workrp, 0, 359 &ch->dma.workrp_map)) 360 goto error; 361 if (bus_dmamap_load(ch->dma.workrp_tag, ch->dma.workrp_map, 362 ch->dma.workrp, MVS_WORKRP_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 363 dcba.error) { 364 bus_dmamem_free(ch->dma.workrp_tag, 365 ch->dma.workrp, ch->dma.workrp_map); 366 goto error; 367 } 368 ch->dma.workrp_bus = dcba.maddr; 369 /* Data area. */ 370 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, MVS_EPRD_MAX, 371 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 372 NULL, NULL, 373 MVS_SG_ENTRIES * PAGE_SIZE * MVS_MAX_SLOTS, 374 MVS_SG_ENTRIES, MVS_EPRD_MAX, 375 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 376 goto error; 377 } 378 return; 379 380error: 381 device_printf(dev, "WARNING - DMA initialization failed\n"); 382 mvs_dmafini(dev); 383} 384 385static void 386mvs_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 387{ 388 struct mvs_dc_cb_args *dcba = (struct mvs_dc_cb_args *)xsc; 389 390 if (!(dcba->error = error)) 391 dcba->maddr = segs[0].ds_addr; 392} 393 394static void 395mvs_dmafini(device_t dev) 396{ 397 struct mvs_channel *ch = device_get_softc(dev); 398 399 if (ch->dma.data_tag) { 400 bus_dma_tag_destroy(ch->dma.data_tag); 401 ch->dma.data_tag = NULL; 402 } 403 if (ch->dma.workrp_bus) { 404 bus_dmamap_unload(ch->dma.workrp_tag, ch->dma.workrp_map); 405 bus_dmamem_free(ch->dma.workrp_tag, 406 ch->dma.workrp, ch->dma.workrp_map); 407 ch->dma.workrp_bus = 0; 408 ch->dma.workrp = NULL; 409 } 410 if (ch->dma.workrp_tag) { 411 bus_dma_tag_destroy(ch->dma.workrp_tag); 412 ch->dma.workrp_tag = NULL; 413 } 414 if (ch->dma.workrq_bus) { 415 bus_dmamap_unload(ch->dma.workrq_tag, ch->dma.workrq_map); 416 bus_dmamem_free(ch->dma.workrq_tag, 417 ch->dma.workrq, ch->dma.workrq_map); 418 ch->dma.workrq_bus = 0; 419 ch->dma.workrq = NULL; 420 } 421 if (ch->dma.workrq_tag) { 422 bus_dma_tag_destroy(ch->dma.workrq_tag); 423 ch->dma.workrq_tag = NULL; 424 } 425} 426 427static void 428mvs_slotsalloc(device_t dev) 429{ 430 struct mvs_channel *ch = device_get_softc(dev); 431 int i; 432 433 /* Alloc and setup command/dma slots */ 434 bzero(ch->slot, sizeof(ch->slot)); 435 for (i = 0; i < MVS_MAX_SLOTS; i++) { 436 struct mvs_slot *slot = &ch->slot[i]; 437 438 slot->dev = dev; 439 slot->slot = i; 440 slot->state = MVS_SLOT_EMPTY; 441 slot->ccb = NULL; 442 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 443 444 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 445 device_printf(ch->dev, "FAILURE - create data_map\n"); 446 } 447} 448 449static void 450mvs_slotsfree(device_t dev) 451{ 452 struct mvs_channel *ch = device_get_softc(dev); 453 int i; 454 455 /* Free all dma slots */ 456 for (i = 0; i < MVS_MAX_SLOTS; i++) { 457 struct mvs_slot *slot = &ch->slot[i]; 458 459 callout_drain(&slot->timeout); 460 if (slot->dma.data_map) { 461 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 462 slot->dma.data_map = NULL; 463 } 464 } 465} 466 467static void 468mvs_setup_edma_queues(device_t dev) 469{ 470 struct mvs_channel *ch = device_get_softc(dev); 471 uint64_t work; 472 473 /* Requests queue. */ 474 work = ch->dma.workrq_bus; 475 ATA_OUTL(ch->r_mem, EDMA_REQQBAH, work >> 32); 476 ATA_OUTL(ch->r_mem, EDMA_REQQIP, work & 0xffffffff); 477 ATA_OUTL(ch->r_mem, EDMA_REQQOP, work & 0xffffffff); 478 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 479 BUS_DMASYNC_PREWRITE); 480 /* Responses queue. */ 481 memset(ch->dma.workrp, 0xff, MVS_WORKRP_SIZE); 482 work = ch->dma.workrp_bus; 483 ATA_OUTL(ch->r_mem, EDMA_RESQBAH, work >> 32); 484 ATA_OUTL(ch->r_mem, EDMA_RESQIP, work & 0xffffffff); 485 ATA_OUTL(ch->r_mem, EDMA_RESQOP, work & 0xffffffff); 486 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 487 BUS_DMASYNC_PREREAD); 488 ch->out_idx = 0; 489 ch->in_idx = 0; 490} 491 492static void 493mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode) 494{ 495 struct mvs_channel *ch = device_get_softc(dev); 496 int timeout; 497 uint32_t ecfg, fcfg, hc, ltm, unkn; 498 499 if (mode == ch->curr_mode) 500 return; 501 /* If we are running, we should stop first. */ 502 if (ch->curr_mode != MVS_EDMA_OFF) { 503 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EDSEDMA); 504 timeout = 0; 505 while (ATA_INL(ch->r_mem, EDMA_CMD) & EDMA_CMD_EENEDMA) { 506 DELAY(1000); 507 if (timeout++ > 1000) { 508 device_printf(dev, "stopping EDMA engine failed\n"); 509 break; 510 } 511 } 512 } 513 ch->curr_mode = mode; 514 ch->fbs_enabled = 0; 515 ch->fake_busy = 0; 516 /* Report mode to controller. Needed for correct CCC operation. */ 517 MVS_EDMA(device_get_parent(dev), dev, mode); 518 /* Configure new mode. */ 519 ecfg = EDMA_CFG_RESERVED | EDMA_CFG_RESERVED2 | EDMA_CFG_EHOSTQUEUECACHEEN; 520 if (ch->pm_present) { 521 ecfg |= EDMA_CFG_EMASKRXPM; 522 if (ch->quirks & MVS_Q_GENIIE) { 523 ecfg |= EDMA_CFG_EEDMAFBS; 524 ch->fbs_enabled = 1; 525 } 526 } 527 if (ch->quirks & MVS_Q_GENI) 528 ecfg |= EDMA_CFG_ERDBSZ; 529 else if (ch->quirks & MVS_Q_GENII) 530 ecfg |= EDMA_CFG_ERDBSZEXT | EDMA_CFG_EWRBUFFERLEN; 531 if (ch->quirks & MVS_Q_CT) 532 ecfg |= EDMA_CFG_ECUTTHROUGHEN; 533 if (mode != MVS_EDMA_OFF) 534 ecfg |= EDMA_CFG_EEARLYCOMPLETIONEN; 535 if (mode == MVS_EDMA_QUEUED) 536 ecfg |= EDMA_CFG_EQUE; 537 else if (mode == MVS_EDMA_NCQ) 538 ecfg |= EDMA_CFG_ESATANATVCMDQUE; 539 ATA_OUTL(ch->r_mem, EDMA_CFG, ecfg); 540 mvs_setup_edma_queues(dev); 541 if (ch->quirks & MVS_Q_GENIIE) { 542 /* Configure FBS-related registers */ 543 fcfg = ATA_INL(ch->r_mem, SATA_FISC); 544 ltm = ATA_INL(ch->r_mem, SATA_LTM); 545 hc = ATA_INL(ch->r_mem, EDMA_HC); 546 if (ch->fbs_enabled) { 547 fcfg |= SATA_FISC_FISDMAACTIVATESYNCRESP; 548 if (mode == MVS_EDMA_NCQ) { 549 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 550 hc &= ~EDMA_IE_EDEVERR; 551 } else { 552 fcfg |= SATA_FISC_FISWAIT4HOSTRDYEN_B0; 553 hc |= EDMA_IE_EDEVERR; 554 } 555 ltm |= (1 << 8); 556 } else { 557 fcfg &= ~SATA_FISC_FISDMAACTIVATESYNCRESP; 558 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 559 hc |= EDMA_IE_EDEVERR; 560 ltm &= ~(1 << 8); 561 } 562 ATA_OUTL(ch->r_mem, SATA_FISC, fcfg); 563 ATA_OUTL(ch->r_mem, SATA_LTM, ltm); 564 ATA_OUTL(ch->r_mem, EDMA_HC, hc); 565 /* This is some magic, required to handle several DRQs 566 * with basic DMA. */ 567 unkn = ATA_INL(ch->r_mem, EDMA_UNKN_RESD); 568 if (mode == MVS_EDMA_OFF) 569 unkn |= 1; 570 else 571 unkn &= ~1; 572 ATA_OUTL(ch->r_mem, EDMA_UNKN_RESD, unkn); 573 } 574 /* Run EDMA. */ 575 if (mode != MVS_EDMA_OFF) 576 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EENEDMA); 577} 578 579devclass_t mvs_devclass; 580devclass_t mvsch_devclass; 581static device_method_t mvsch_methods[] = { 582 DEVMETHOD(device_probe, mvs_ch_probe), 583 DEVMETHOD(device_attach, mvs_ch_attach), 584 DEVMETHOD(device_detach, mvs_ch_detach), 585 DEVMETHOD(device_suspend, mvs_ch_suspend), 586 DEVMETHOD(device_resume, mvs_ch_resume), 587 { 0, 0 } 588}; 589static driver_t mvsch_driver = { 590 "mvsch", 591 mvsch_methods, 592 sizeof(struct mvs_channel) 593}; 594DRIVER_MODULE(mvsch, mvs, mvsch_driver, mvsch_devclass, 0, 0); 595DRIVER_MODULE(mvsch, sata, mvsch_driver, mvsch_devclass, 0, 0); 596 597static void 598mvs_phy_check_events(device_t dev, u_int32_t serr) 599{ 600 struct mvs_channel *ch = device_get_softc(dev); 601 602 if (ch->pm_level == 0) { 603 u_int32_t status = ATA_INL(ch->r_mem, SATA_SS); 604 union ccb *ccb; 605 606 if (bootverbose) { 607 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 608 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 609 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) { 610 device_printf(dev, "CONNECT requested\n"); 611 } else 612 device_printf(dev, "DISCONNECT requested\n"); 613 } 614 mvs_reset(dev); 615 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 616 return; 617 if (xpt_create_path(&ccb->ccb_h.path, NULL, 618 cam_sim_path(ch->sim), 619 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 620 xpt_free_ccb(ccb); 621 return; 622 } 623 xpt_rescan(ccb); 624 } 625} 626 627static void 628mvs_notify_events(device_t dev) 629{ 630 struct mvs_channel *ch = device_get_softc(dev); 631 struct cam_path *dpath; 632 uint32_t fis; 633 int d; 634 635 /* Try to read PMP field from SDB FIS. Present only for Gen-IIe. */ 636 fis = ATA_INL(ch->r_mem, SATA_FISDW0); 637 if ((fis & 0x80ff) == 0x80a1) 638 d = (fis & 0x0f00) >> 8; 639 else 640 d = ch->pm_present ? 15 : 0; 641 if (bootverbose) 642 device_printf(dev, "SNTF %d\n", d); 643 if (xpt_create_path(&dpath, NULL, 644 xpt_path_path_id(ch->path), d, 0) == CAM_REQ_CMP) { 645 xpt_async(AC_SCSI_AEN, dpath, NULL); 646 xpt_free_path(dpath); 647 } 648} 649 650static void 651mvs_ch_intr_locked(void *data) 652{ 653 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 654 device_t dev = (device_t)arg->arg; 655 struct mvs_channel *ch = device_get_softc(dev); 656 657 mtx_lock(&ch->mtx); 658 mvs_ch_intr(data); 659 mtx_unlock(&ch->mtx); 660} 661 662static void 663mvs_ch_pm(void *arg) 664{ 665 device_t dev = (device_t)arg; 666 struct mvs_channel *ch = device_get_softc(dev); 667 uint32_t work; 668 669 if (ch->numrslots != 0) 670 return; 671 /* If we are idle - request power state transition. */ 672 work = ATA_INL(ch->r_mem, SATA_SC); 673 work &= ~SATA_SC_SPM_MASK; 674 if (ch->pm_level == 4) 675 work |= SATA_SC_SPM_PARTIAL; 676 else 677 work |= SATA_SC_SPM_SLUMBER; 678 ATA_OUTL(ch->r_mem, SATA_SC, work); 679} 680 681static void 682mvs_ch_pm_wake(device_t dev) 683{ 684 struct mvs_channel *ch = device_get_softc(dev); 685 uint32_t work; 686 int timeout = 0; 687 688 work = ATA_INL(ch->r_mem, SATA_SS); 689 if (work & SATA_SS_IPM_ACTIVE) 690 return; 691 /* If we are not in active state - request power state transition. */ 692 work = ATA_INL(ch->r_mem, SATA_SC); 693 work &= ~SATA_SC_SPM_MASK; 694 work |= SATA_SC_SPM_ACTIVE; 695 ATA_OUTL(ch->r_mem, SATA_SC, work); 696 /* Wait for transition to happen. */ 697 while ((ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_IPM_ACTIVE) == 0 && 698 timeout++ < 100) { 699 DELAY(100); 700 } 701} 702 703static void 704mvs_ch_intr(void *data) 705{ 706 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 707 device_t dev = (device_t)arg->arg; 708 struct mvs_channel *ch = device_get_softc(dev); 709 uint32_t iec, serr = 0, fisic = 0; 710 enum mvs_err_type et; 711 int i, ccs, port = -1, selfdis = 0; 712 int edma = (ch->numtslots != 0 || ch->numdslots != 0); 713 714 /* New item in response queue. */ 715 if ((arg->cause & 2) && edma) 716 mvs_crbq_intr(dev); 717 /* Some error or special event. */ 718 if (arg->cause & 1) { 719 iec = ATA_INL(ch->r_mem, EDMA_IEC); 720 if (iec & EDMA_IE_SERRINT) { 721 serr = ATA_INL(ch->r_mem, SATA_SE); 722 ATA_OUTL(ch->r_mem, SATA_SE, serr); 723 } 724 /* EDMA self-disabled due to error. */ 725 if (iec & EDMA_IE_ESELFDIS) 726 selfdis = 1; 727 /* Transport interrupt. */ 728 if (iec & EDMA_IE_ETRANSINT) { 729 /* For Gen-I this bit means self-disable. */ 730 if (ch->quirks & MVS_Q_GENI) 731 selfdis = 1; 732 /* For Gen-II this bit means SDB-N. */ 733 else if (ch->quirks & MVS_Q_GENII) 734 fisic = SATA_FISC_FISWAIT4HOSTRDYEN_B1; 735 else /* For Gen-IIe - read FIS interrupt cause. */ 736 fisic = ATA_INL(ch->r_mem, SATA_FISIC); 737 } 738 if (selfdis) 739 ch->curr_mode = MVS_EDMA_UNKNOWN; 740 ATA_OUTL(ch->r_mem, EDMA_IEC, ~iec); 741 /* Interface errors or Device error. */ 742 if (iec & (0xfc1e9000 | EDMA_IE_EDEVERR)) { 743 port = -1; 744 if (ch->numpslots != 0) { 745 ccs = 0; 746 } else { 747 if (ch->quirks & MVS_Q_GENIIE) 748 ccs = EDMA_S_EIOID(ATA_INL(ch->r_mem, EDMA_S)); 749 else 750 ccs = EDMA_S_EDEVQUETAG(ATA_INL(ch->r_mem, EDMA_S)); 751 /* Check if error is one-PMP-port-specific, */ 752 if (ch->fbs_enabled) { 753 /* Which ports were active. */ 754 for (i = 0; i < 16; i++) { 755 if (ch->numrslotspd[i] == 0) 756 continue; 757 if (port == -1) 758 port = i; 759 else if (port != i) { 760 port = -2; 761 break; 762 } 763 } 764 /* If several ports were active and EDMA still enabled - 765 * other ports are probably unaffected and may continue. 766 */ 767 if (port == -2 && !selfdis) { 768 uint16_t p = ATA_INL(ch->r_mem, SATA_SATAITC) >> 16; 769 port = ffs(p) - 1; 770 if (port != (fls(p) - 1)) 771 port = -2; 772 } 773 } 774 } 775 mvs_requeue_frozen(dev); 776 for (i = 0; i < MVS_MAX_SLOTS; i++) { 777 /* XXX: reqests in loading state. */ 778 if (((ch->rslots >> i) & 1) == 0) 779 continue; 780 if (port >= 0 && 781 ch->slot[i].ccb->ccb_h.target_id != port) 782 continue; 783 if (iec & EDMA_IE_EDEVERR) { /* Device error. */ 784 if (port != -2) { 785 if (ch->numtslots == 0) { 786 /* Untagged operation. */ 787 if (i == ccs) 788 et = MVS_ERR_TFE; 789 else 790 et = MVS_ERR_INNOCENT; 791 } else { 792 /* Tagged operation. */ 793 et = MVS_ERR_NCQ; 794 } 795 } else { 796 et = MVS_ERR_TFE; 797 ch->fatalerr = 1; 798 } 799 } else if (iec & 0xfc1e9000) { 800 if (ch->numtslots == 0 && 801 i != ccs && port != -2) 802 et = MVS_ERR_INNOCENT; 803 else 804 et = MVS_ERR_SATA; 805 } else 806 et = MVS_ERR_INVALID; 807 mvs_end_transaction(&ch->slot[i], et); 808 } 809 } 810 /* Process SDB-N. */ 811 if (fisic & SATA_FISC_FISWAIT4HOSTRDYEN_B1) 812 mvs_notify_events(dev); 813 if (fisic) 814 ATA_OUTL(ch->r_mem, SATA_FISIC, ~fisic); 815 /* Process hot-plug. */ 816 if ((iec & (EDMA_IE_EDEVDIS | EDMA_IE_EDEVCON)) || 817 (serr & SATA_SE_PHY_CHANGED)) 818 mvs_phy_check_events(dev, serr); 819 } 820 /* Legacy mode device interrupt. */ 821 if ((arg->cause & 2) && !edma) 822 mvs_legacy_intr(dev, arg->cause & 4); 823} 824 825static uint8_t 826mvs_getstatus(device_t dev, int clear) 827{ 828 struct mvs_channel *ch = device_get_softc(dev); 829 uint8_t status = ATA_INB(ch->r_mem, clear ? ATA_STATUS : ATA_ALTSTAT); 830 831 if (ch->fake_busy) { 832 if (status & (ATA_S_BUSY | ATA_S_DRQ | ATA_S_ERROR)) 833 ch->fake_busy = 0; 834 else 835 status |= ATA_S_BUSY; 836 } 837 return (status); 838} 839 840static void 841mvs_legacy_intr(device_t dev, int poll) 842{ 843 struct mvs_channel *ch = device_get_softc(dev); 844 struct mvs_slot *slot = &ch->slot[0]; /* PIO is always in slot 0. */ 845 union ccb *ccb = slot->ccb; 846 enum mvs_err_type et = MVS_ERR_NONE; 847 int port; 848 u_int length, resid, size; 849 uint8_t buf[2]; 850 uint8_t status, ireason; 851 852 /* Clear interrupt and get status. */ 853 status = mvs_getstatus(dev, 1); 854 if (slot->state < MVS_SLOT_RUNNING) 855 return; 856 port = ccb->ccb_h.target_id & 0x0f; 857 /* Wait a bit for late !BUSY status update. */ 858 if (status & ATA_S_BUSY) { 859 if (poll) 860 return; 861 DELAY(100); 862 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) { 863 DELAY(1000); 864 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) 865 return; 866 } 867 } 868 /* If we got an error, we are done. */ 869 if (status & ATA_S_ERROR) { 870 et = MVS_ERR_TFE; 871 goto end_finished; 872 } 873 if (ccb->ccb_h.func_code == XPT_ATA_IO) { /* ATA PIO */ 874 ccb->ataio.res.status = status; 875 /* Are we moving data? */ 876 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 877 /* If data read command - get them. */ 878 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 879 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 880 device_printf(dev, "timeout waiting for read DRQ\n"); 881 et = MVS_ERR_TIMEOUT; 882 xpt_freeze_simq(ch->sim, 1); 883 ch->toslots |= (1 << slot->slot); 884 goto end_finished; 885 } 886 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 887 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 888 ch->transfersize / 2); 889 } 890 /* Update how far we've gotten. */ 891 ch->donecount += ch->transfersize; 892 /* Do we need more? */ 893 if (ccb->ataio.dxfer_len > ch->donecount) { 894 /* Set this transfer size according to HW capabilities */ 895 ch->transfersize = min(ccb->ataio.dxfer_len - ch->donecount, 896 ch->transfersize); 897 /* If data write command - put them */ 898 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 899 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 900 device_printf(dev, 901 "timeout waiting for write DRQ\n"); 902 et = MVS_ERR_TIMEOUT; 903 xpt_freeze_simq(ch->sim, 1); 904 ch->toslots |= (1 << slot->slot); 905 goto end_finished; 906 } 907 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 908 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 909 ch->transfersize / 2); 910 return; 911 } 912 /* If data read command, return & wait for interrupt */ 913 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 914 return; 915 } 916 } 917 } else if (ch->basic_dma) { /* ATAPI DMA */ 918 if (status & ATA_S_DWF) 919 et = MVS_ERR_TFE; 920 else if (ATA_INL(ch->r_mem, DMA_S) & DMA_S_ERR) 921 et = MVS_ERR_TFE; 922 /* Stop basic DMA. */ 923 ATA_OUTL(ch->r_mem, DMA_C, 0); 924 goto end_finished; 925 } else { /* ATAPI PIO */ 926 length = ATA_INB(ch->r_mem,ATA_CYL_LSB) | 927 (ATA_INB(ch->r_mem,ATA_CYL_MSB) << 8); 928 size = min(ch->transfersize, length); 929 ireason = ATA_INB(ch->r_mem,ATA_IREASON); 930 switch ((ireason & (ATA_I_CMD | ATA_I_IN)) | 931 (status & ATA_S_DRQ)) { 932 933 case ATAPI_P_CMDOUT: 934 device_printf(dev, "ATAPI CMDOUT\n"); 935 /* Return wait for interrupt */ 936 return; 937 938 case ATAPI_P_WRITE: 939 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 940 device_printf(dev, "trying to write on read buffer\n"); 941 et = MVS_ERR_TFE; 942 goto end_finished; 943 break; 944 } 945 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 946 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 947 (size + 1) / 2); 948 for (resid = ch->transfersize + (size & 1); 949 resid < length; resid += sizeof(int16_t)) 950 ATA_OUTW(ch->r_mem, ATA_DATA, 0); 951 ch->donecount += length; 952 /* Set next transfer size according to HW capabilities */ 953 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 954 ch->curr[ccb->ccb_h.target_id].bytecount); 955 /* Return wait for interrupt */ 956 return; 957 958 case ATAPI_P_READ: 959 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 960 device_printf(dev, "trying to read on write buffer\n"); 961 et = MVS_ERR_TFE; 962 goto end_finished; 963 } 964 if (size >= 2) { 965 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 966 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 967 size / 2); 968 } 969 if (size & 1) { 970 ATA_INSW_STRM(ch->r_mem, ATA_DATA, (void*)buf, 1); 971 ((uint8_t *)ccb->csio.data_ptr + ch->donecount + 972 (size & ~1))[0] = buf[0]; 973 } 974 for (resid = ch->transfersize + (size & 1); 975 resid < length; resid += sizeof(int16_t)) 976 ATA_INW(ch->r_mem, ATA_DATA); 977 ch->donecount += length; 978 /* Set next transfer size according to HW capabilities */ 979 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 980 ch->curr[ccb->ccb_h.target_id].bytecount); 981 /* Return wait for interrupt */ 982 return; 983 984 case ATAPI_P_DONEDRQ: 985 device_printf(dev, 986 "WARNING - DONEDRQ non conformant device\n"); 987 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 988 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 989 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 990 length / 2); 991 ch->donecount += length; 992 } 993 else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 994 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 995 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 996 length / 2); 997 ch->donecount += length; 998 } 999 else 1000 et = MVS_ERR_TFE; 1001 /* FALLTHROUGH */ 1002 1003 case ATAPI_P_ABORT: 1004 case ATAPI_P_DONE: 1005 if (status & (ATA_S_ERROR | ATA_S_DWF)) 1006 et = MVS_ERR_TFE; 1007 goto end_finished; 1008 1009 default: 1010 device_printf(dev, "unknown transfer phase" 1011 " (status %02x, ireason %02x)\n", 1012 status, ireason); 1013 et = MVS_ERR_TFE; 1014 } 1015 } 1016 1017end_finished: 1018 mvs_end_transaction(slot, et); 1019} 1020 1021static void 1022mvs_crbq_intr(device_t dev) 1023{ 1024 struct mvs_channel *ch = device_get_softc(dev); 1025 struct mvs_crpb *crpb; 1026 union ccb *ccb; 1027 int in_idx, fin_idx, cin_idx, slot; 1028 uint32_t val; 1029 uint16_t flags; 1030 1031 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1032 if (val == 0) 1033 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1034 in_idx = (val & EDMA_RESQP_ERPQP_MASK) >> 1035 EDMA_RESQP_ERPQP_SHIFT; 1036 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1037 BUS_DMASYNC_POSTREAD); 1038 fin_idx = cin_idx = ch->in_idx; 1039 ch->in_idx = in_idx; 1040 while (in_idx != cin_idx) { 1041 crpb = (struct mvs_crpb *) 1042 (ch->dma.workrp + MVS_CRPB_OFFSET + 1043 (MVS_CRPB_SIZE * cin_idx)); 1044 slot = le16toh(crpb->id) & MVS_CRPB_TAG_MASK; 1045 flags = le16toh(crpb->rspflg); 1046 /* 1047 * Handle only successful completions here. 1048 * Errors will be handled by main intr handler. 1049 */ 1050#if defined(__i386__) || defined(__amd64__) 1051 if (crpb->id == 0xffff && crpb->rspflg == 0xffff) { 1052 device_printf(dev, "Unfilled CRPB " 1053 "%d (%d->%d) tag %d flags %04x rs %08x\n", 1054 cin_idx, fin_idx, in_idx, slot, flags, ch->rslots); 1055 } else 1056#endif 1057 if (ch->numtslots != 0 || 1058 (flags & EDMA_IE_EDEVERR) == 0) { 1059#if defined(__i386__) || defined(__amd64__) 1060 crpb->id = 0xffff; 1061 crpb->rspflg = 0xffff; 1062#endif 1063 if (ch->slot[slot].state >= MVS_SLOT_RUNNING) { 1064 ccb = ch->slot[slot].ccb; 1065 ccb->ataio.res.status = 1066 (flags & MVS_CRPB_ATASTS_MASK) >> 1067 MVS_CRPB_ATASTS_SHIFT; 1068 mvs_end_transaction(&ch->slot[slot], MVS_ERR_NONE); 1069 } else { 1070 device_printf(dev, "Unused tag in CRPB " 1071 "%d (%d->%d) tag %d flags %04x rs %08x\n", 1072 cin_idx, fin_idx, in_idx, slot, flags, 1073 ch->rslots); 1074 } 1075 } else { 1076 device_printf(dev, 1077 "CRPB with error %d tag %d flags %04x\n", 1078 cin_idx, slot, flags); 1079 } 1080 cin_idx = (cin_idx + 1) & (MVS_MAX_SLOTS - 1); 1081 } 1082 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1083 BUS_DMASYNC_PREREAD); 1084 if (cin_idx == ch->in_idx) { 1085 ATA_OUTL(ch->r_mem, EDMA_RESQOP, 1086 ch->dma.workrp_bus | (cin_idx << EDMA_RESQP_ERPQP_SHIFT)); 1087 } 1088} 1089 1090/* Must be called with channel locked. */ 1091static int 1092mvs_check_collision(device_t dev, union ccb *ccb) 1093{ 1094 struct mvs_channel *ch = device_get_softc(dev); 1095 1096 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1097 /* NCQ DMA */ 1098 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1099 /* Can't mix NCQ and non-NCQ DMA commands. */ 1100 if (ch->numdslots != 0) 1101 return (1); 1102 /* Can't mix NCQ and PIO commands. */ 1103 if (ch->numpslots != 0) 1104 return (1); 1105 /* If we have no FBS */ 1106 if (!ch->fbs_enabled) { 1107 /* Tagged command while tagged to other target is active. */ 1108 if (ch->numtslots != 0 && 1109 ch->taggedtarget != ccb->ccb_h.target_id) 1110 return (1); 1111 } 1112 /* Non-NCQ DMA */ 1113 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1114 /* Can't mix non-NCQ DMA and NCQ commands. */ 1115 if (ch->numtslots != 0) 1116 return (1); 1117 /* Can't mix non-NCQ DMA and PIO commands. */ 1118 if (ch->numpslots != 0) 1119 return (1); 1120 /* PIO */ 1121 } else { 1122 /* Can't mix PIO with anything. */ 1123 if (ch->numrslots != 0) 1124 return (1); 1125 } 1126 if (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1127 /* Atomic command while anything active. */ 1128 if (ch->numrslots != 0) 1129 return (1); 1130 } 1131 } else { /* ATAPI */ 1132 /* ATAPI goes without EDMA, so can't mix it with anything. */ 1133 if (ch->numrslots != 0) 1134 return (1); 1135 } 1136 /* We have some atomic command running. */ 1137 if (ch->aslots != 0) 1138 return (1); 1139 return (0); 1140} 1141 1142static void 1143mvs_tfd_read(device_t dev, union ccb *ccb) 1144{ 1145 struct mvs_channel *ch = device_get_softc(dev); 1146 struct ata_res *res = &ccb->ataio.res; 1147 1148 res->status = ATA_INB(ch->r_mem, ATA_ALTSTAT); 1149 res->error = ATA_INB(ch->r_mem, ATA_ERROR); 1150 res->device = ATA_INB(ch->r_mem, ATA_DRIVE); 1151 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_HOB); 1152 res->sector_count_exp = ATA_INB(ch->r_mem, ATA_COUNT); 1153 res->lba_low_exp = ATA_INB(ch->r_mem, ATA_SECTOR); 1154 res->lba_mid_exp = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1155 res->lba_high_exp = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1156 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 1157 res->sector_count = ATA_INB(ch->r_mem, ATA_COUNT); 1158 res->lba_low = ATA_INB(ch->r_mem, ATA_SECTOR); 1159 res->lba_mid = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1160 res->lba_high = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1161} 1162 1163static void 1164mvs_tfd_write(device_t dev, union ccb *ccb) 1165{ 1166 struct mvs_channel *ch = device_get_softc(dev); 1167 struct ata_cmd *cmd = &ccb->ataio.cmd; 1168 1169 ATA_OUTB(ch->r_mem, ATA_DRIVE, cmd->device); 1170 ATA_OUTB(ch->r_mem, ATA_CONTROL, cmd->control); 1171 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features_exp); 1172 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features); 1173 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count_exp); 1174 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count); 1175 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low_exp); 1176 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low); 1177 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid_exp); 1178 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid); 1179 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high_exp); 1180 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high); 1181 ATA_OUTB(ch->r_mem, ATA_COMMAND, cmd->command); 1182} 1183 1184 1185/* Must be called with channel locked. */ 1186static void 1187mvs_begin_transaction(device_t dev, union ccb *ccb) 1188{ 1189 struct mvs_channel *ch = device_get_softc(dev); 1190 struct mvs_slot *slot; 1191 int slotn, tag; 1192 1193 if (ch->pm_level > 0) 1194 mvs_ch_pm_wake(dev); 1195 /* Softreset is a special case. */ 1196 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1197 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1198 mvs_softreset(dev, ccb); 1199 return; 1200 } 1201 /* Choose empty slot. */ 1202 slotn = ffs(~ch->oslots) - 1; 1203 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1204 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1205 if (ch->quirks & MVS_Q_GENIIE) 1206 tag = ffs(~ch->otagspd[ccb->ccb_h.target_id]) - 1; 1207 else 1208 tag = slotn; 1209 } else 1210 tag = 0; 1211 /* Occupy chosen slot. */ 1212 slot = &ch->slot[slotn]; 1213 slot->ccb = ccb; 1214 slot->tag = tag; 1215 /* Stop PM timer. */ 1216 if (ch->numrslots == 0 && ch->pm_level > 3) 1217 callout_stop(&ch->pm_timer); 1218 /* Update channel stats. */ 1219 ch->oslots |= (1 << slot->slot); 1220 ch->numrslots++; 1221 ch->numrslotspd[ccb->ccb_h.target_id]++; 1222 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1223 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1224 ch->otagspd[ccb->ccb_h.target_id] |= (1 << slot->tag); 1225 ch->numtslots++; 1226 ch->numtslotspd[ccb->ccb_h.target_id]++; 1227 ch->taggedtarget = ccb->ccb_h.target_id; 1228 mvs_set_edma_mode(dev, MVS_EDMA_NCQ); 1229 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1230 ch->numdslots++; 1231 mvs_set_edma_mode(dev, MVS_EDMA_ON); 1232 } else { 1233 ch->numpslots++; 1234 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1235 } 1236 if (ccb->ataio.cmd.flags & 1237 (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1238 ch->aslots |= (1 << slot->slot); 1239 } 1240 } else { 1241 uint8_t *cdb = (ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1242 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes; 1243 ch->numpslots++; 1244 /* Use ATAPI DMA only for commands without under-/overruns. */ 1245 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1246 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA && 1247 (ch->quirks & MVS_Q_SOC) == 0 && 1248 (cdb[0] == 0x08 || 1249 cdb[0] == 0x0a || 1250 cdb[0] == 0x28 || 1251 cdb[0] == 0x2a || 1252 cdb[0] == 0x88 || 1253 cdb[0] == 0x8a || 1254 cdb[0] == 0xa8 || 1255 cdb[0] == 0xaa || 1256 cdb[0] == 0xbe)) { 1257 ch->basic_dma = 1; 1258 } 1259 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1260 } 1261 if (ch->numpslots == 0 || ch->basic_dma) { 1262 slot->state = MVS_SLOT_LOADING; 1263 bus_dmamap_load_ccb(ch->dma.data_tag, slot->dma.data_map, 1264 ccb, mvs_dmasetprd, slot, 0); 1265 } else 1266 mvs_legacy_execute_transaction(slot); 1267} 1268 1269/* Locked by busdma engine. */ 1270static void 1271mvs_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1272{ 1273 struct mvs_slot *slot = arg; 1274 struct mvs_channel *ch = device_get_softc(slot->dev); 1275 struct mvs_eprd *eprd; 1276 int i; 1277 1278 if (error) { 1279 device_printf(slot->dev, "DMA load error\n"); 1280 mvs_end_transaction(slot, MVS_ERR_INVALID); 1281 return; 1282 } 1283 KASSERT(nsegs <= MVS_SG_ENTRIES, ("too many DMA segment entries\n")); 1284 /* If there is only one segment - no need to use S/G table on Gen-IIe. */ 1285 if (nsegs == 1 && ch->basic_dma == 0 && (ch->quirks & MVS_Q_GENIIE)) { 1286 slot->dma.addr = segs[0].ds_addr; 1287 slot->dma.len = segs[0].ds_len; 1288 } else { 1289 slot->dma.addr = 0; 1290 /* Get a piece of the workspace for this EPRD */ 1291 eprd = (struct mvs_eprd *) 1292 (ch->dma.workrq + MVS_EPRD_OFFSET + (MVS_EPRD_SIZE * slot->slot)); 1293 /* Fill S/G table */ 1294 for (i = 0; i < nsegs; i++) { 1295 eprd[i].prdbal = htole32(segs[i].ds_addr); 1296 eprd[i].bytecount = htole32(segs[i].ds_len & MVS_EPRD_MASK); 1297 eprd[i].prdbah = htole32((segs[i].ds_addr >> 16) >> 16); 1298 } 1299 eprd[i - 1].bytecount |= htole32(MVS_EPRD_EOF); 1300 } 1301 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1302 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1303 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1304 if (ch->basic_dma) 1305 mvs_legacy_execute_transaction(slot); 1306 else 1307 mvs_execute_transaction(slot); 1308} 1309 1310static void 1311mvs_legacy_execute_transaction(struct mvs_slot *slot) 1312{ 1313 device_t dev = slot->dev; 1314 struct mvs_channel *ch = device_get_softc(dev); 1315 bus_addr_t eprd; 1316 union ccb *ccb = slot->ccb; 1317 int port = ccb->ccb_h.target_id & 0x0f; 1318 int timeout; 1319 1320 slot->state = MVS_SLOT_RUNNING; 1321 ch->rslots |= (1 << slot->slot); 1322 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 1323 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1324 mvs_tfd_write(dev, ccb); 1325 /* Device reset doesn't interrupt. */ 1326 if (ccb->ataio.cmd.command == ATA_DEVICE_RESET) { 1327 int timeout = 1000000; 1328 do { 1329 DELAY(10); 1330 ccb->ataio.res.status = ATA_INB(ch->r_mem, ATA_STATUS); 1331 } while (ccb->ataio.res.status & ATA_S_BUSY && timeout--); 1332 mvs_legacy_intr(dev, 1); 1333 return; 1334 } 1335 ch->donecount = 0; 1336 if (ccb->ataio.cmd.command == ATA_READ_MUL || 1337 ccb->ataio.cmd.command == ATA_READ_MUL48 || 1338 ccb->ataio.cmd.command == ATA_WRITE_MUL || 1339 ccb->ataio.cmd.command == ATA_WRITE_MUL48) { 1340 ch->transfersize = min(ccb->ataio.dxfer_len, 1341 ch->curr[port].bytecount); 1342 } else 1343 ch->transfersize = min(ccb->ataio.dxfer_len, 512); 1344 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 1345 ch->fake_busy = 1; 1346 /* If data write command - output the data */ 1347 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1348 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 1349 device_printf(dev, 1350 "timeout waiting for write DRQ\n"); 1351 xpt_freeze_simq(ch->sim, 1); 1352 ch->toslots |= (1 << slot->slot); 1353 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1354 return; 1355 } 1356 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 1357 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 1358 ch->transfersize / 2); 1359 } 1360 } else { 1361 ch->donecount = 0; 1362 ch->transfersize = min(ccb->csio.dxfer_len, 1363 ch->curr[port].bytecount); 1364 /* Write ATA PACKET command. */ 1365 if (ch->basic_dma) { 1366 ATA_OUTB(ch->r_mem, ATA_FEATURE, ATA_F_DMA); 1367 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, 0); 1368 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, 0); 1369 } else { 1370 ATA_OUTB(ch->r_mem, ATA_FEATURE, 0); 1371 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, ch->transfersize); 1372 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, ch->transfersize >> 8); 1373 } 1374 ATA_OUTB(ch->r_mem, ATA_COMMAND, ATA_PACKET_CMD); 1375 ch->fake_busy = 1; 1376 /* Wait for ready to write ATAPI command block */ 1377 if (mvs_wait(dev, 0, ATA_S_BUSY, 1000) < 0) { 1378 device_printf(dev, "timeout waiting for ATAPI !BUSY\n"); 1379 xpt_freeze_simq(ch->sim, 1); 1380 ch->toslots |= (1 << slot->slot); 1381 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1382 return; 1383 } 1384 timeout = 5000; 1385 while (timeout--) { 1386 int reason = ATA_INB(ch->r_mem, ATA_IREASON); 1387 int status = ATA_INB(ch->r_mem, ATA_STATUS); 1388 1389 if (((reason & (ATA_I_CMD | ATA_I_IN)) | 1390 (status & (ATA_S_DRQ | ATA_S_BUSY))) == ATAPI_P_CMDOUT) 1391 break; 1392 DELAY(20); 1393 } 1394 if (timeout <= 0) { 1395 device_printf(dev, 1396 "timeout waiting for ATAPI command ready\n"); 1397 xpt_freeze_simq(ch->sim, 1); 1398 ch->toslots |= (1 << slot->slot); 1399 mvs_end_transaction(slot, MVS_ERR_TIMEOUT); 1400 return; 1401 } 1402 /* Write ATAPI command. */ 1403 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 1404 (uint16_t *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1405 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes), 1406 ch->curr[port].atapi / 2); 1407 DELAY(10); 1408 if (ch->basic_dma) { 1409 /* Start basic DMA. */ 1410 eprd = ch->dma.workrq_bus + MVS_EPRD_OFFSET + 1411 (MVS_EPRD_SIZE * slot->slot); 1412 ATA_OUTL(ch->r_mem, DMA_DTLBA, eprd); 1413 ATA_OUTL(ch->r_mem, DMA_DTHBA, (eprd >> 16) >> 16); 1414 ATA_OUTL(ch->r_mem, DMA_C, DMA_C_START | 1415 (((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) ? 1416 DMA_C_READ : 0)); 1417 } 1418 } 1419 /* Start command execution timeout */ 1420 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0, 1421 (timeout_t*)mvs_timeout, slot, 0); 1422} 1423 1424/* Must be called with channel locked. */ 1425static void 1426mvs_execute_transaction(struct mvs_slot *slot) 1427{ 1428 device_t dev = slot->dev; 1429 struct mvs_channel *ch = device_get_softc(dev); 1430 bus_addr_t eprd; 1431 struct mvs_crqb *crqb; 1432 struct mvs_crqb_gen2e *crqb2e; 1433 union ccb *ccb = slot->ccb; 1434 int port = ccb->ccb_h.target_id & 0x0f; 1435 int i; 1436 1437 /* Get address of the prepared EPRD */ 1438 eprd = ch->dma.workrq_bus + MVS_EPRD_OFFSET + (MVS_EPRD_SIZE * slot->slot); 1439 /* Prepare CRQB. Gen IIe uses different CRQB format. */ 1440 if (ch->quirks & MVS_Q_GENIIE) { 1441 crqb2e = (struct mvs_crqb_gen2e *) 1442 (ch->dma.workrq + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1443 crqb2e->ctrlflg = htole32( 1444 ((ccb->ccb_h.flags & CAM_DIR_IN) ? MVS_CRQB2E_READ : 0) | 1445 (slot->tag << MVS_CRQB2E_DTAG_SHIFT) | 1446 (port << MVS_CRQB2E_PMP_SHIFT) | 1447 (slot->slot << MVS_CRQB2E_HTAG_SHIFT)); 1448 /* If there is only one segment - no need to use S/G table. */ 1449 if (slot->dma.addr != 0) { 1450 eprd = slot->dma.addr; 1451 crqb2e->ctrlflg |= htole32(MVS_CRQB2E_CPRD); 1452 crqb2e->drbc = slot->dma.len; 1453 } 1454 crqb2e->cprdbl = htole32(eprd); 1455 crqb2e->cprdbh = htole32((eprd >> 16) >> 16); 1456 crqb2e->cmd[0] = 0; 1457 crqb2e->cmd[1] = 0; 1458 crqb2e->cmd[2] = ccb->ataio.cmd.command; 1459 crqb2e->cmd[3] = ccb->ataio.cmd.features; 1460 crqb2e->cmd[4] = ccb->ataio.cmd.lba_low; 1461 crqb2e->cmd[5] = ccb->ataio.cmd.lba_mid; 1462 crqb2e->cmd[6] = ccb->ataio.cmd.lba_high; 1463 crqb2e->cmd[7] = ccb->ataio.cmd.device; 1464 crqb2e->cmd[8] = ccb->ataio.cmd.lba_low_exp; 1465 crqb2e->cmd[9] = ccb->ataio.cmd.lba_mid_exp; 1466 crqb2e->cmd[10] = ccb->ataio.cmd.lba_high_exp; 1467 crqb2e->cmd[11] = ccb->ataio.cmd.features_exp; 1468 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1469 crqb2e->cmd[12] = slot->tag << 3; 1470 crqb2e->cmd[13] = 0; 1471 } else { 1472 crqb2e->cmd[12] = ccb->ataio.cmd.sector_count; 1473 crqb2e->cmd[13] = ccb->ataio.cmd.sector_count_exp; 1474 } 1475 crqb2e->cmd[14] = 0; 1476 crqb2e->cmd[15] = 0; 1477 } else { 1478 crqb = (struct mvs_crqb *) 1479 (ch->dma.workrq + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1480 crqb->cprdbl = htole32(eprd); 1481 crqb->cprdbh = htole32((eprd >> 16) >> 16); 1482 crqb->ctrlflg = htole16( 1483 ((ccb->ccb_h.flags & CAM_DIR_IN) ? MVS_CRQB_READ : 0) | 1484 (slot->slot << MVS_CRQB_TAG_SHIFT) | 1485 (port << MVS_CRQB_PMP_SHIFT)); 1486 i = 0; 1487 /* 1488 * Controller can handle only 11 of 12 ATA registers, 1489 * so we have to choose which one to skip. 1490 */ 1491 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1492 crqb->cmd[i++] = ccb->ataio.cmd.features_exp; 1493 crqb->cmd[i++] = 0x11; 1494 } 1495 crqb->cmd[i++] = ccb->ataio.cmd.features; 1496 crqb->cmd[i++] = 0x11; 1497 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1498 crqb->cmd[i++] = slot->tag << 3; 1499 crqb->cmd[i++] = 0x12; 1500 } else { 1501 crqb->cmd[i++] = ccb->ataio.cmd.sector_count_exp; 1502 crqb->cmd[i++] = 0x12; 1503 crqb->cmd[i++] = ccb->ataio.cmd.sector_count; 1504 crqb->cmd[i++] = 0x12; 1505 } 1506 crqb->cmd[i++] = ccb->ataio.cmd.lba_low_exp; 1507 crqb->cmd[i++] = 0x13; 1508 crqb->cmd[i++] = ccb->ataio.cmd.lba_low; 1509 crqb->cmd[i++] = 0x13; 1510 crqb->cmd[i++] = ccb->ataio.cmd.lba_mid_exp; 1511 crqb->cmd[i++] = 0x14; 1512 crqb->cmd[i++] = ccb->ataio.cmd.lba_mid; 1513 crqb->cmd[i++] = 0x14; 1514 crqb->cmd[i++] = ccb->ataio.cmd.lba_high_exp; 1515 crqb->cmd[i++] = 0x15; 1516 crqb->cmd[i++] = ccb->ataio.cmd.lba_high; 1517 crqb->cmd[i++] = 0x15; 1518 crqb->cmd[i++] = ccb->ataio.cmd.device; 1519 crqb->cmd[i++] = 0x16; 1520 crqb->cmd[i++] = ccb->ataio.cmd.command; 1521 crqb->cmd[i++] = 0x97; 1522 } 1523 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 1524 BUS_DMASYNC_PREWRITE); 1525 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1526 BUS_DMASYNC_PREREAD); 1527 slot->state = MVS_SLOT_RUNNING; 1528 ch->rslots |= (1 << slot->slot); 1529 /* Issue command to the controller. */ 1530 ch->out_idx = (ch->out_idx + 1) & (MVS_MAX_SLOTS - 1); 1531 ATA_OUTL(ch->r_mem, EDMA_REQQIP, 1532 ch->dma.workrq_bus + MVS_CRQB_OFFSET + (MVS_CRQB_SIZE * ch->out_idx)); 1533 /* Start command execution timeout */ 1534 callout_reset_sbt(&slot->timeout, SBT_1MS * ccb->ccb_h.timeout, 0, 1535 (timeout_t*)mvs_timeout, slot, 0); 1536 return; 1537} 1538 1539/* Must be called with channel locked. */ 1540static void 1541mvs_process_timeout(device_t dev) 1542{ 1543 struct mvs_channel *ch = device_get_softc(dev); 1544 int i; 1545 1546 mtx_assert(&ch->mtx, MA_OWNED); 1547 /* Handle the rest of commands. */ 1548 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1549 /* Do we have a running request on slot? */ 1550 if (ch->slot[i].state < MVS_SLOT_RUNNING) 1551 continue; 1552 mvs_end_transaction(&ch->slot[i], MVS_ERR_TIMEOUT); 1553 } 1554} 1555 1556/* Must be called with channel locked. */ 1557static void 1558mvs_rearm_timeout(device_t dev) 1559{ 1560 struct mvs_channel *ch = device_get_softc(dev); 1561 int i; 1562 1563 mtx_assert(&ch->mtx, MA_OWNED); 1564 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1565 struct mvs_slot *slot = &ch->slot[i]; 1566 1567 /* Do we have a running request on slot? */ 1568 if (slot->state < MVS_SLOT_RUNNING) 1569 continue; 1570 if ((ch->toslots & (1 << i)) == 0) 1571 continue; 1572 callout_reset_sbt(&slot->timeout, 1573 SBT_1MS * slot->ccb->ccb_h.timeout / 2, 0, 1574 (timeout_t*)mvs_timeout, slot, 0); 1575 } 1576} 1577 1578/* Locked by callout mechanism. */ 1579static void 1580mvs_timeout(struct mvs_slot *slot) 1581{ 1582 device_t dev = slot->dev; 1583 struct mvs_channel *ch = device_get_softc(dev); 1584 1585 /* Check for stale timeout. */ 1586 if (slot->state < MVS_SLOT_RUNNING) 1587 return; 1588 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1589 device_printf(dev, "iec %08x sstat %08x serr %08x edma_s %08x " 1590 "dma_c %08x dma_s %08x rs %08x status %02x\n", 1591 ATA_INL(ch->r_mem, EDMA_IEC), 1592 ATA_INL(ch->r_mem, SATA_SS), ATA_INL(ch->r_mem, SATA_SE), 1593 ATA_INL(ch->r_mem, EDMA_S), ATA_INL(ch->r_mem, DMA_C), 1594 ATA_INL(ch->r_mem, DMA_S), ch->rslots, 1595 ATA_INB(ch->r_mem, ATA_ALTSTAT)); 1596 /* Handle frozen command. */ 1597 mvs_requeue_frozen(dev); 1598 /* We wait for other commands timeout and pray. */ 1599 if (ch->toslots == 0) 1600 xpt_freeze_simq(ch->sim, 1); 1601 ch->toslots |= (1 << slot->slot); 1602 if ((ch->rslots & ~ch->toslots) == 0) 1603 mvs_process_timeout(dev); 1604 else 1605 device_printf(dev, " ... waiting for slots %08x\n", 1606 ch->rslots & ~ch->toslots); 1607} 1608 1609/* Must be called with channel locked. */ 1610static void 1611mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et) 1612{ 1613 device_t dev = slot->dev; 1614 struct mvs_channel *ch = device_get_softc(dev); 1615 union ccb *ccb = slot->ccb; 1616 int lastto; 1617 1618 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 1619 BUS_DMASYNC_POSTWRITE); 1620 /* Read result registers to the result struct 1621 * May be incorrect if several commands finished same time, 1622 * so read only when sure or have to. 1623 */ 1624 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1625 struct ata_res *res = &ccb->ataio.res; 1626 1627 if ((et == MVS_ERR_TFE) || 1628 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1629 mvs_tfd_read(dev, ccb); 1630 } else 1631 bzero(res, sizeof(*res)); 1632 } else { 1633 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1634 ch->basic_dma == 0) 1635 ccb->csio.resid = ccb->csio.dxfer_len - ch->donecount; 1636 } 1637 if (ch->numpslots == 0 || ch->basic_dma) { 1638 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1639 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1640 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1641 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1642 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1643 } 1644 } 1645 if (et != MVS_ERR_NONE) 1646 ch->eslots |= (1 << slot->slot); 1647 /* In case of error, freeze device for proper recovery. */ 1648 if ((et != MVS_ERR_NONE) && (!ch->recoverycmd) && 1649 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1650 xpt_freeze_devq(ccb->ccb_h.path, 1); 1651 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1652 } 1653 /* Set proper result status. */ 1654 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1655 switch (et) { 1656 case MVS_ERR_NONE: 1657 ccb->ccb_h.status |= CAM_REQ_CMP; 1658 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1659 ccb->csio.scsi_status = SCSI_STATUS_OK; 1660 break; 1661 case MVS_ERR_INVALID: 1662 ch->fatalerr = 1; 1663 ccb->ccb_h.status |= CAM_REQ_INVALID; 1664 break; 1665 case MVS_ERR_INNOCENT: 1666 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1667 break; 1668 case MVS_ERR_TFE: 1669 case MVS_ERR_NCQ: 1670 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1671 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1672 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1673 } else { 1674 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1675 } 1676 break; 1677 case MVS_ERR_SATA: 1678 ch->fatalerr = 1; 1679 if (!ch->recoverycmd) { 1680 xpt_freeze_simq(ch->sim, 1); 1681 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1682 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1683 } 1684 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1685 break; 1686 case MVS_ERR_TIMEOUT: 1687 if (!ch->recoverycmd) { 1688 xpt_freeze_simq(ch->sim, 1); 1689 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1690 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1691 } 1692 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1693 break; 1694 default: 1695 ch->fatalerr = 1; 1696 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1697 } 1698 /* Free slot. */ 1699 ch->oslots &= ~(1 << slot->slot); 1700 ch->rslots &= ~(1 << slot->slot); 1701 ch->aslots &= ~(1 << slot->slot); 1702 slot->state = MVS_SLOT_EMPTY; 1703 slot->ccb = NULL; 1704 /* Update channel stats. */ 1705 ch->numrslots--; 1706 ch->numrslotspd[ccb->ccb_h.target_id]--; 1707 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1708 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1709 ch->otagspd[ccb->ccb_h.target_id] &= ~(1 << slot->tag); 1710 ch->numtslots--; 1711 ch->numtslotspd[ccb->ccb_h.target_id]--; 1712 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1713 ch->numdslots--; 1714 } else { 1715 ch->numpslots--; 1716 } 1717 } else { 1718 ch->numpslots--; 1719 ch->basic_dma = 0; 1720 } 1721 /* Cancel timeout state if request completed normally. */ 1722 if (et != MVS_ERR_TIMEOUT) { 1723 lastto = (ch->toslots == (1 << slot->slot)); 1724 ch->toslots &= ~(1 << slot->slot); 1725 if (lastto) 1726 xpt_release_simq(ch->sim, TRUE); 1727 } 1728 /* If it was our READ LOG command - process it. */ 1729 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 1730 mvs_process_read_log(dev, ccb); 1731 /* If it was our REQUEST SENSE command - process it. */ 1732 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 1733 mvs_process_request_sense(dev, ccb); 1734 /* If it was NCQ or ATAPI command error, put result on hold. */ 1735 } else if (et == MVS_ERR_NCQ || 1736 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 1737 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 1738 ch->hold[slot->slot] = ccb; 1739 ch->holdtag[slot->slot] = slot->tag; 1740 ch->numhslots++; 1741 } else 1742 xpt_done(ccb); 1743 /* If we have no other active commands, ... */ 1744 if (ch->rslots == 0) { 1745 /* if there was fatal error - reset port. */ 1746 if (ch->toslots != 0 || ch->fatalerr) { 1747 mvs_reset(dev); 1748 } else { 1749 /* if we have slots in error, we can reinit port. */ 1750 if (ch->eslots != 0) { 1751 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1752 ch->eslots = 0; 1753 } 1754 /* if there commands on hold, we can do READ LOG. */ 1755 if (!ch->recoverycmd && ch->numhslots) 1756 mvs_issue_recovery(dev); 1757 } 1758 /* If all the rest of commands are in timeout - give them chance. */ 1759 } else if ((ch->rslots & ~ch->toslots) == 0 && 1760 et != MVS_ERR_TIMEOUT) 1761 mvs_rearm_timeout(dev); 1762 /* Unfreeze frozen command. */ 1763 if (ch->frozen && !mvs_check_collision(dev, ch->frozen)) { 1764 union ccb *fccb = ch->frozen; 1765 ch->frozen = NULL; 1766 mvs_begin_transaction(dev, fccb); 1767 xpt_release_simq(ch->sim, TRUE); 1768 } 1769 /* Start PM timer. */ 1770 if (ch->numrslots == 0 && ch->pm_level > 3 && 1771 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 1772 callout_schedule(&ch->pm_timer, 1773 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 1774 } 1775} 1776 1777static void 1778mvs_issue_recovery(device_t dev) 1779{ 1780 struct mvs_channel *ch = device_get_softc(dev); 1781 union ccb *ccb; 1782 struct ccb_ataio *ataio; 1783 struct ccb_scsiio *csio; 1784 int i; 1785 1786 /* Find some held command. */ 1787 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1788 if (ch->hold[i]) 1789 break; 1790 } 1791 ccb = xpt_alloc_ccb_nowait(); 1792 if (ccb == NULL) { 1793 device_printf(dev, "Unable to allocate recovery command\n"); 1794completeall: 1795 /* We can't do anything -- complete held commands. */ 1796 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1797 if (ch->hold[i] == NULL) 1798 continue; 1799 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1800 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 1801 xpt_done(ch->hold[i]); 1802 ch->hold[i] = NULL; 1803 ch->numhslots--; 1804 } 1805 mvs_reset(dev); 1806 return; 1807 } 1808 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 1809 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1810 /* READ LOG */ 1811 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 1812 ccb->ccb_h.func_code = XPT_ATA_IO; 1813 ccb->ccb_h.flags = CAM_DIR_IN; 1814 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1815 ataio = &ccb->ataio; 1816 ataio->data_ptr = malloc(512, M_MVS, M_NOWAIT); 1817 if (ataio->data_ptr == NULL) { 1818 xpt_free_ccb(ccb); 1819 device_printf(dev, 1820 "Unable to allocate memory for READ LOG command\n"); 1821 goto completeall; 1822 } 1823 ataio->dxfer_len = 512; 1824 bzero(&ataio->cmd, sizeof(ataio->cmd)); 1825 ataio->cmd.flags = CAM_ATAIO_48BIT; 1826 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 1827 ataio->cmd.sector_count = 1; 1828 ataio->cmd.sector_count_exp = 0; 1829 ataio->cmd.lba_low = 0x10; 1830 ataio->cmd.lba_mid = 0; 1831 ataio->cmd.lba_mid_exp = 0; 1832 } else { 1833 /* REQUEST SENSE */ 1834 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 1835 ccb->ccb_h.recovery_slot = i; 1836 ccb->ccb_h.func_code = XPT_SCSI_IO; 1837 ccb->ccb_h.flags = CAM_DIR_IN; 1838 ccb->ccb_h.status = 0; 1839 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1840 csio = &ccb->csio; 1841 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 1842 csio->dxfer_len = ch->hold[i]->csio.sense_len; 1843 csio->cdb_len = 6; 1844 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 1845 csio->cdb_io.cdb_bytes[0] = 0x03; 1846 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 1847 } 1848 /* Freeze SIM while doing recovery. */ 1849 ch->recoverycmd = 1; 1850 xpt_freeze_simq(ch->sim, 1); 1851 mvs_begin_transaction(dev, ccb); 1852} 1853 1854static void 1855mvs_process_read_log(device_t dev, union ccb *ccb) 1856{ 1857 struct mvs_channel *ch = device_get_softc(dev); 1858 uint8_t *data; 1859 struct ata_res *res; 1860 int i; 1861 1862 ch->recoverycmd = 0; 1863 1864 data = ccb->ataio.data_ptr; 1865 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1866 (data[0] & 0x80) == 0) { 1867 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1868 if (!ch->hold[i]) 1869 continue; 1870 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1871 continue; 1872 if ((data[0] & 0x1F) == ch->holdtag[i]) { 1873 res = &ch->hold[i]->ataio.res; 1874 res->status = data[2]; 1875 res->error = data[3]; 1876 res->lba_low = data[4]; 1877 res->lba_mid = data[5]; 1878 res->lba_high = data[6]; 1879 res->device = data[7]; 1880 res->lba_low_exp = data[8]; 1881 res->lba_mid_exp = data[9]; 1882 res->lba_high_exp = data[10]; 1883 res->sector_count = data[12]; 1884 res->sector_count_exp = data[13]; 1885 } else { 1886 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1887 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 1888 } 1889 xpt_done(ch->hold[i]); 1890 ch->hold[i] = NULL; 1891 ch->numhslots--; 1892 } 1893 } else { 1894 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1895 device_printf(dev, "Error while READ LOG EXT\n"); 1896 else if ((data[0] & 0x80) == 0) { 1897 device_printf(dev, 1898 "Non-queued command error in READ LOG EXT\n"); 1899 } 1900 for (i = 0; i < MVS_MAX_SLOTS; i++) { 1901 if (!ch->hold[i]) 1902 continue; 1903 if (ch->hold[i]->ccb_h.target_id != ccb->ccb_h.target_id) 1904 continue; 1905 xpt_done(ch->hold[i]); 1906 ch->hold[i] = NULL; 1907 ch->numhslots--; 1908 } 1909 } 1910 free(ccb->ataio.data_ptr, M_MVS); 1911 xpt_free_ccb(ccb); 1912 xpt_release_simq(ch->sim, TRUE); 1913} 1914 1915static void 1916mvs_process_request_sense(device_t dev, union ccb *ccb) 1917{ 1918 struct mvs_channel *ch = device_get_softc(dev); 1919 int i; 1920 1921 ch->recoverycmd = 0; 1922 1923 i = ccb->ccb_h.recovery_slot; 1924 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1925 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 1926 } else { 1927 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1928 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 1929 } 1930 xpt_done(ch->hold[i]); 1931 ch->hold[i] = NULL; 1932 ch->numhslots--; 1933 xpt_free_ccb(ccb); 1934 xpt_release_simq(ch->sim, TRUE); 1935} 1936 1937static int 1938mvs_wait(device_t dev, u_int s, u_int c, int t) 1939{ 1940 int timeout = 0; 1941 uint8_t st; 1942 1943 while (((st = mvs_getstatus(dev, 0)) & (s | c)) != s) { 1944 if (timeout >= t) { 1945 if (t != 0) 1946 device_printf(dev, "Wait status %02x\n", st); 1947 return (-1); 1948 } 1949 DELAY(1000); 1950 timeout++; 1951 } 1952 return (timeout); 1953} 1954 1955static void 1956mvs_requeue_frozen(device_t dev) 1957{ 1958 struct mvs_channel *ch = device_get_softc(dev); 1959 union ccb *fccb = ch->frozen; 1960 1961 if (fccb) { 1962 ch->frozen = NULL; 1963 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1964 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1965 xpt_freeze_devq(fccb->ccb_h.path, 1); 1966 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1967 } 1968 xpt_done(fccb); 1969 } 1970} 1971 1972static void 1973mvs_reset_to(void *arg) 1974{ 1975 device_t dev = arg; 1976 struct mvs_channel *ch = device_get_softc(dev); 1977 int t; 1978 1979 if (ch->resetting == 0) 1980 return; 1981 ch->resetting--; 1982 if ((t = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, 0)) >= 0) { 1983 if (bootverbose) { 1984 device_printf(dev, 1985 "MVS reset: device ready after %dms\n", 1986 (310 - ch->resetting) * 100); 1987 } 1988 ch->resetting = 0; 1989 xpt_release_simq(ch->sim, TRUE); 1990 return; 1991 } 1992 if (ch->resetting == 0) { 1993 device_printf(dev, 1994 "MVS reset: device not ready after 31000ms\n"); 1995 xpt_release_simq(ch->sim, TRUE); 1996 return; 1997 } 1998 callout_schedule(&ch->reset_timer, hz / 10); 1999} 2000 2001static void 2002mvs_errata(device_t dev) 2003{ 2004 struct mvs_channel *ch = device_get_softc(dev); 2005 uint32_t val; 2006 2007 if (ch->quirks & MVS_Q_SOC65) { 2008 val = ATA_INL(ch->r_mem, SATA_PHYM3); 2009 val &= ~(0x3 << 27); /* SELMUPF = 1 */ 2010 val |= (0x1 << 27); 2011 val &= ~(0x3 << 29); /* SELMUPI = 1 */ 2012 val |= (0x1 << 29); 2013 ATA_OUTL(ch->r_mem, SATA_PHYM3, val); 2014 2015 val = ATA_INL(ch->r_mem, SATA_PHYM4); 2016 val &= ~0x1; /* SATU_OD8 = 0 */ 2017 val |= (0x1 << 16); /* reserved bit 16 = 1 */ 2018 ATA_OUTL(ch->r_mem, SATA_PHYM4, val); 2019 2020 val = ATA_INL(ch->r_mem, SATA_PHYM9_GEN2); 2021 val &= ~0xf; /* TXAMP[3:0] = 8 */ 2022 val |= 0x8; 2023 val &= ~(0x1 << 14); /* TXAMP[4] = 0 */ 2024 ATA_OUTL(ch->r_mem, SATA_PHYM9_GEN2, val); 2025 2026 val = ATA_INL(ch->r_mem, SATA_PHYM9_GEN1); 2027 val &= ~0xf; /* TXAMP[3:0] = 8 */ 2028 val |= 0x8; 2029 val &= ~(0x1 << 14); /* TXAMP[4] = 0 */ 2030 ATA_OUTL(ch->r_mem, SATA_PHYM9_GEN1, val); 2031 } 2032} 2033 2034static void 2035mvs_reset(device_t dev) 2036{ 2037 struct mvs_channel *ch = device_get_softc(dev); 2038 int i; 2039 2040 xpt_freeze_simq(ch->sim, 1); 2041 if (bootverbose) 2042 device_printf(dev, "MVS reset...\n"); 2043 /* Forget about previous reset. */ 2044 if (ch->resetting) { 2045 ch->resetting = 0; 2046 callout_stop(&ch->reset_timer); 2047 xpt_release_simq(ch->sim, TRUE); 2048 } 2049 /* Requeue freezed command. */ 2050 mvs_requeue_frozen(dev); 2051 /* Kill the engine and requeue all running commands. */ 2052 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2053 ATA_OUTL(ch->r_mem, DMA_C, 0); 2054 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2055 /* Do we have a running request on slot? */ 2056 if (ch->slot[i].state < MVS_SLOT_RUNNING) 2057 continue; 2058 /* XXX; Commands in loading state. */ 2059 mvs_end_transaction(&ch->slot[i], MVS_ERR_INNOCENT); 2060 } 2061 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2062 if (!ch->hold[i]) 2063 continue; 2064 xpt_done(ch->hold[i]); 2065 ch->hold[i] = NULL; 2066 ch->numhslots--; 2067 } 2068 if (ch->toslots != 0) 2069 xpt_release_simq(ch->sim, TRUE); 2070 ch->eslots = 0; 2071 ch->toslots = 0; 2072 ch->fatalerr = 0; 2073 ch->fake_busy = 0; 2074 /* Tell the XPT about the event */ 2075 xpt_async(AC_BUS_RESET, ch->path, NULL); 2076 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 2077 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EATARST); 2078 DELAY(25); 2079 ATA_OUTL(ch->r_mem, EDMA_CMD, 0); 2080 mvs_errata(dev); 2081 /* Reset and reconnect PHY, */ 2082 if (!mvs_sata_phy_reset(dev)) { 2083 if (bootverbose) 2084 device_printf(dev, "MVS reset: device not found\n"); 2085 ch->devices = 0; 2086 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2087 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2088 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2089 xpt_release_simq(ch->sim, TRUE); 2090 return; 2091 } 2092 if (bootverbose) 2093 device_printf(dev, "MVS reset: device found\n"); 2094 /* Wait for clearing busy status. */ 2095 if ((i = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, 2096 dumping ? 31000 : 0)) < 0) { 2097 if (dumping) { 2098 device_printf(dev, 2099 "MVS reset: device not ready after 31000ms\n"); 2100 } else 2101 ch->resetting = 310; 2102 } else if (bootverbose) 2103 device_printf(dev, "MVS reset: device ready after %dms\n", i); 2104 ch->devices = 1; 2105 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2106 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2107 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2108 if (ch->resetting) 2109 callout_reset(&ch->reset_timer, hz / 10, mvs_reset_to, dev); 2110 else 2111 xpt_release_simq(ch->sim, TRUE); 2112} 2113 2114static void 2115mvs_softreset(device_t dev, union ccb *ccb) 2116{ 2117 struct mvs_channel *ch = device_get_softc(dev); 2118 int port = ccb->ccb_h.target_id & 0x0f; 2119 int i, stuck; 2120 uint8_t status; 2121 2122 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2123 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 2124 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2125 DELAY(10000); 2126 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2127 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2128 /* Wait for clearing busy status. */ 2129 if ((i = mvs_wait(dev, 0, ATA_S_BUSY, ccb->ccb_h.timeout)) < 0) { 2130 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2131 stuck = 1; 2132 } else { 2133 status = mvs_getstatus(dev, 0); 2134 if (status & ATA_S_ERROR) 2135 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2136 else 2137 ccb->ccb_h.status |= CAM_REQ_CMP; 2138 if (status & ATA_S_DRQ) 2139 stuck = 1; 2140 else 2141 stuck = 0; 2142 } 2143 mvs_tfd_read(dev, ccb); 2144 2145 /* 2146 * XXX: If some device on PMP failed to soft-reset, 2147 * try to recover by sending dummy soft-reset to PMP. 2148 */ 2149 if (stuck && ch->pm_present && port != 15) { 2150 ATA_OUTB(ch->r_mem, SATA_SATAICTL, 2151 15 << SATA_SATAICTL_PMPTX_SHIFT); 2152 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2153 DELAY(10000); 2154 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2155 mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, ccb->ccb_h.timeout); 2156 } 2157 2158 xpt_done(ccb); 2159} 2160 2161static int 2162mvs_sata_connect(struct mvs_channel *ch) 2163{ 2164 u_int32_t status; 2165 int timeout, found = 0; 2166 2167 /* Wait up to 100ms for "connect well" */ 2168 for (timeout = 0; timeout < 1000 ; timeout++) { 2169 status = ATA_INL(ch->r_mem, SATA_SS); 2170 if ((status & SATA_SS_DET_MASK) != SATA_SS_DET_NO_DEVICE) 2171 found = 1; 2172 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 2173 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 2174 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) 2175 break; 2176 if ((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_OFFLINE) { 2177 if (bootverbose) { 2178 device_printf(ch->dev, "SATA offline status=%08x\n", 2179 status); 2180 } 2181 return (0); 2182 } 2183 if (found == 0 && timeout >= 100) 2184 break; 2185 DELAY(100); 2186 } 2187 if (timeout >= 1000 || !found) { 2188 if (bootverbose) { 2189 device_printf(ch->dev, 2190 "SATA connect timeout time=%dus status=%08x\n", 2191 timeout * 100, status); 2192 } 2193 return (0); 2194 } 2195 if (bootverbose) { 2196 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2197 timeout * 100, status); 2198 } 2199 /* Clear SATA error register */ 2200 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2201 return (1); 2202} 2203 2204static int 2205mvs_sata_phy_reset(device_t dev) 2206{ 2207 struct mvs_channel *ch = device_get_softc(dev); 2208 int sata_rev; 2209 uint32_t val; 2210 2211 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2212 if (sata_rev == 1) 2213 val = SATA_SC_SPD_SPEED_GEN1; 2214 else if (sata_rev == 2) 2215 val = SATA_SC_SPD_SPEED_GEN2; 2216 else if (sata_rev == 3) 2217 val = SATA_SC_SPD_SPEED_GEN3; 2218 else 2219 val = 0; 2220 ATA_OUTL(ch->r_mem, SATA_SC, 2221 SATA_SC_DET_RESET | val | 2222 SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER); 2223 DELAY(1000); 2224 ATA_OUTL(ch->r_mem, SATA_SC, 2225 SATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2226 (SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER))); 2227 if (!mvs_sata_connect(ch)) { 2228 if (ch->pm_level > 0) 2229 ATA_OUTL(ch->r_mem, SATA_SC, SATA_SC_DET_DISABLE); 2230 return (0); 2231 } 2232 return (1); 2233} 2234 2235static int 2236mvs_check_ids(device_t dev, union ccb *ccb) 2237{ 2238 struct mvs_channel *ch = device_get_softc(dev); 2239 2240 if (ccb->ccb_h.target_id > ((ch->quirks & MVS_Q_GENI) ? 0 : 15)) { 2241 ccb->ccb_h.status = CAM_TID_INVALID; 2242 xpt_done(ccb); 2243 return (-1); 2244 } 2245 if (ccb->ccb_h.target_lun != 0) { 2246 ccb->ccb_h.status = CAM_LUN_INVALID; 2247 xpt_done(ccb); 2248 return (-1); 2249 } 2250 /* 2251 * It's a programming error to see AUXILIARY register requests. 2252 */ 2253 KASSERT(ccb->ccb_h.func_code != XPT_ATA_IO || 2254 ((ccb->ataio.ata_flags & ATA_FLAG_AUX) == 0), 2255 ("AUX register unsupported")); 2256 return (0); 2257} 2258 2259static void 2260mvsaction(struct cam_sim *sim, union ccb *ccb) 2261{ 2262 device_t dev, parent; 2263 struct mvs_channel *ch; 2264 2265 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mvsaction func_code=%x\n", 2266 ccb->ccb_h.func_code)); 2267 2268 ch = (struct mvs_channel *)cam_sim_softc(sim); 2269 dev = ch->dev; 2270 switch (ccb->ccb_h.func_code) { 2271 /* Common cases first */ 2272 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2273 case XPT_SCSI_IO: 2274 if (mvs_check_ids(dev, ccb)) 2275 return; 2276 if (ch->devices == 0 || 2277 (ch->pm_present == 0 && 2278 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2279 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2280 break; 2281 } 2282 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2283 /* Check for command collision. */ 2284 if (mvs_check_collision(dev, ccb)) { 2285 /* Freeze command. */ 2286 ch->frozen = ccb; 2287 /* We have only one frozen slot, so freeze simq also. */ 2288 xpt_freeze_simq(ch->sim, 1); 2289 return; 2290 } 2291 mvs_begin_transaction(dev, ccb); 2292 return; 2293 case XPT_ABORT: /* Abort the specified CCB */ 2294 /* XXX Implement */ 2295 ccb->ccb_h.status = CAM_REQ_INVALID; 2296 break; 2297 case XPT_SET_TRAN_SETTINGS: 2298 { 2299 struct ccb_trans_settings *cts = &ccb->cts; 2300 struct mvs_device *d; 2301 2302 if (mvs_check_ids(dev, ccb)) 2303 return; 2304 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2305 d = &ch->curr[ccb->ccb_h.target_id]; 2306 else 2307 d = &ch->user[ccb->ccb_h.target_id]; 2308 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2309 d->revision = cts->xport_specific.sata.revision; 2310 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2311 d->mode = cts->xport_specific.sata.mode; 2312 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) { 2313 d->bytecount = min((ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048, 2314 cts->xport_specific.sata.bytecount); 2315 } 2316 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2317 d->tags = min(MVS_MAX_SLOTS, cts->xport_specific.sata.tags); 2318 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2319 ch->pm_present = cts->xport_specific.sata.pm_present; 2320 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2321 d->atapi = cts->xport_specific.sata.atapi; 2322 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2323 d->caps = cts->xport_specific.sata.caps; 2324 ccb->ccb_h.status = CAM_REQ_CMP; 2325 break; 2326 } 2327 case XPT_GET_TRAN_SETTINGS: 2328 /* Get default/user set transfer settings for the target */ 2329 { 2330 struct ccb_trans_settings *cts = &ccb->cts; 2331 struct mvs_device *d; 2332 uint32_t status; 2333 2334 if (mvs_check_ids(dev, ccb)) 2335 return; 2336 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2337 d = &ch->curr[ccb->ccb_h.target_id]; 2338 else 2339 d = &ch->user[ccb->ccb_h.target_id]; 2340 cts->protocol = PROTO_UNSPECIFIED; 2341 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2342 cts->transport = XPORT_SATA; 2343 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2344 cts->proto_specific.valid = 0; 2345 cts->xport_specific.sata.valid = 0; 2346 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2347 (ccb->ccb_h.target_id == 15 || 2348 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2349 status = ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_SPD_MASK; 2350 if (status & 0x0f0) { 2351 cts->xport_specific.sata.revision = 2352 (status & 0x0f0) >> 4; 2353 cts->xport_specific.sata.valid |= 2354 CTS_SATA_VALID_REVISION; 2355 } 2356 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2357// if (ch->pm_level) 2358// cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2359 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2360 cts->xport_specific.sata.caps &= 2361 ch->user[ccb->ccb_h.target_id].caps; 2362 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2363 } else { 2364 cts->xport_specific.sata.revision = d->revision; 2365 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2366 cts->xport_specific.sata.caps = d->caps; 2367 if (cts->type == CTS_TYPE_CURRENT_SETTINGS/* && 2368 (ch->quirks & MVS_Q_GENIIE) == 0*/) 2369 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN; 2370 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2371 } 2372 cts->xport_specific.sata.mode = d->mode; 2373 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2374 cts->xport_specific.sata.bytecount = d->bytecount; 2375 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2376 cts->xport_specific.sata.pm_present = ch->pm_present; 2377 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2378 cts->xport_specific.sata.tags = d->tags; 2379 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2380 cts->xport_specific.sata.atapi = d->atapi; 2381 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2382 ccb->ccb_h.status = CAM_REQ_CMP; 2383 break; 2384 } 2385 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2386 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2387 mvs_reset(dev); 2388 ccb->ccb_h.status = CAM_REQ_CMP; 2389 break; 2390 case XPT_TERM_IO: /* Terminate the I/O process */ 2391 /* XXX Implement */ 2392 ccb->ccb_h.status = CAM_REQ_INVALID; 2393 break; 2394 case XPT_PATH_INQ: /* Path routing inquiry */ 2395 { 2396 struct ccb_pathinq *cpi = &ccb->cpi; 2397 2398 parent = device_get_parent(dev); 2399 cpi->version_num = 1; /* XXX??? */ 2400 cpi->hba_inquiry = PI_SDTR_ABLE; 2401 if (!(ch->quirks & MVS_Q_GENI)) { 2402 cpi->hba_inquiry |= PI_SATAPM; 2403 /* Gen-II is extremely slow with NCQ on PMP. */ 2404 if ((ch->quirks & MVS_Q_GENIIE) || ch->pm_present == 0) 2405 cpi->hba_inquiry |= PI_TAG_ABLE; 2406 } 2407 cpi->target_sprt = 0; 2408 cpi->hba_misc = PIM_SEQSCAN; 2409 cpi->hba_eng_cnt = 0; 2410 if (!(ch->quirks & MVS_Q_GENI)) 2411 cpi->max_target = 15; 2412 else 2413 cpi->max_target = 0; 2414 cpi->max_lun = 0; 2415 cpi->initiator_id = 0; 2416 cpi->bus_id = cam_sim_bus(sim); 2417 cpi->base_transfer_speed = 150000; 2418 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2419 strlcpy(cpi->hba_vid, "Marvell", HBA_IDLEN); 2420 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2421 cpi->unit_number = cam_sim_unit(sim); 2422 cpi->transport = XPORT_SATA; 2423 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2424 cpi->protocol = PROTO_ATA; 2425 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2426 cpi->maxio = MAXPHYS; 2427 if ((ch->quirks & MVS_Q_SOC) == 0) { 2428 cpi->hba_vendor = pci_get_vendor(parent); 2429 cpi->hba_device = pci_get_device(parent); 2430 cpi->hba_subvendor = pci_get_subvendor(parent); 2431 cpi->hba_subdevice = pci_get_subdevice(parent); 2432 } 2433 cpi->ccb_h.status = CAM_REQ_CMP; 2434 break; 2435 } 2436 default: 2437 ccb->ccb_h.status = CAM_REQ_INVALID; 2438 break; 2439 } 2440 xpt_done(ccb); 2441} 2442 2443static void 2444mvspoll(struct cam_sim *sim) 2445{ 2446 struct mvs_channel *ch = (struct mvs_channel *)cam_sim_softc(sim); 2447 struct mvs_intr_arg arg; 2448 2449 arg.arg = ch->dev; 2450 arg.cause = 2 | 4; /* XXX */ 2451 mvs_ch_intr(&arg); 2452 if (ch->resetting != 0 && 2453 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2454 ch->resetpolldiv = 1000; 2455 mvs_reset_to(ch->dev); 2456 } 2457} 2458 2459