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("$FreeBSD$"); 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 */ 56 static int mvs_ch_init(device_t dev); 57 static int mvs_ch_deinit(device_t dev); 58 static int mvs_ch_suspend(device_t dev); 59 static int mvs_ch_resume(device_t dev); 60 static void mvs_dmainit(device_t dev); 61 static void mvs_dmasetupc_cb(void *xsc, 62 bus_dma_segment_t *segs, int nsegs, int error); 63 static void mvs_dmafini(device_t dev); 64 static void mvs_slotsalloc(device_t dev); 65 static void mvs_slotsfree(device_t dev); 66 static void mvs_setup_edma_queues(device_t dev); 67 static void mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode); 68 static void mvs_ch_pm(void *arg); 69 static void mvs_ch_intr_locked(void *data); 70 static void mvs_ch_intr(void *data); 71 static void mvs_reset(device_t dev); 72 static void mvs_softreset(device_t dev, union ccb *ccb); 73 74 static int mvs_sata_connect(struct mvs_channel *ch); 75 static int mvs_sata_phy_reset(device_t dev); 76 static int mvs_wait(device_t dev, u_int s, u_int c, int t); 77 static void mvs_tfd_read(device_t dev, union ccb *ccb); 78 static void mvs_tfd_write(device_t dev, union ccb *ccb); 79 static void mvs_legacy_intr(device_t dev, int poll); 80 static void mvs_crbq_intr(device_t dev); 81 static void mvs_begin_transaction(device_t dev, union ccb *ccb); 82 static void mvs_legacy_execute_transaction(struct mvs_slot *slot); 83 static void mvs_timeout(struct mvs_slot *slot); 84 static void mvs_dmasetprd(void *arg, 85 bus_dma_segment_t *segs, int nsegs, int error); 86 static void mvs_requeue_frozen(device_t dev); 87 static void mvs_execute_transaction(struct mvs_slot *slot); 88 static void mvs_end_transaction(struct mvs_slot *slot, enum mvs_err_type et); 89 90 static void mvs_issue_recovery(device_t dev); 91 static void mvs_process_read_log(device_t dev, union ccb *ccb); 92 static void mvs_process_request_sense(device_t dev, union ccb *ccb); 93 94 static void mvsaction(struct cam_sim *sim, union ccb *ccb); 95 static void mvspoll(struct cam_sim *sim); 96 97 static 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 104 105 static int 106 mvs_ch_probe(device_t dev) 107 { 108 109 device_set_desc_copy(dev, "Marvell SATA channel"); 110 return (0); 111 } 112 113 static int 114 mvs_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 resource_int_value(device_get_name(dev), 126 device_get_unit(dev), "pm_level", &ch->pm_level); 127 if (ch->pm_level > 3) 128 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 129 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 130 resource_int_value(device_get_name(dev), 131 device_get_unit(dev), "sata_rev", &sata_rev); 132 for (i = 0; i < 16; i++) { 133 ch->user[i].revision = sata_rev; 134 ch->user[i].mode = 0; 135 ch->user[i].bytecount = (ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048; 136 ch->user[i].tags = MVS_MAX_SLOTS; 137 ch->curr[i] = ch->user[i]; 138 if (ch->pm_level) { 139 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 140 CTS_SATA_CAPS_H_APST | 141 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 142 } 143 ch->user[i].caps |= CTS_SATA_CAPS_H_AN; 144 } 145 rid = ch->unit; 146 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 147 &rid, RF_ACTIVE))) 148 return (ENXIO); 149 mvs_dmainit(dev); 150 mvs_slotsalloc(dev); 151 mvs_ch_init(dev); 152 mtx_lock(&ch->mtx); 153 rid = ATA_IRQ_RID; 154 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 155 &rid, RF_SHAREABLE | RF_ACTIVE))) { 156 device_printf(dev, "Unable to map interrupt\n"); 157 error = ENXIO; 158 goto err0; 159 } 160 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 161 mvs_ch_intr_locked, dev, &ch->ih))) { 162 device_printf(dev, "Unable to setup interrupt\n"); 163 error = ENXIO; 164 goto err1; 165 } 166 /* Create the device queue for our SIM. */ 167 devq = cam_simq_alloc(MVS_MAX_SLOTS - 1); 168 if (devq == NULL) { 169 device_printf(dev, "Unable to allocate simq\n"); 170 error = ENOMEM; 171 goto err1; 172 } 173 /* Construct SIM entry */ 174 ch->sim = cam_sim_alloc(mvsaction, mvspoll, "mvsch", ch, 175 device_get_unit(dev), &ch->mtx, 176 2, (ch->quirks & MVS_Q_GENI) ? 0 : MVS_MAX_SLOTS - 1, 177 devq); 178 if (ch->sim == NULL) { 179 cam_simq_free(devq); 180 device_printf(dev, "unable to allocate sim\n"); 181 error = ENOMEM; 182 goto err1; 183 } 184 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 185 device_printf(dev, "unable to register xpt bus\n"); 186 error = ENXIO; 187 goto err2; 188 } 189 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 190 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 191 device_printf(dev, "unable to create path\n"); 192 error = ENXIO; 193 goto err3; 194 } 195 if (ch->pm_level > 3) { 196 callout_reset(&ch->pm_timer, 197 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 198 mvs_ch_pm, dev); 199 } 200 mtx_unlock(&ch->mtx); 201 return (0); 202 203 err3: 204 xpt_bus_deregister(cam_sim_path(ch->sim)); 205 err2: 206 cam_sim_free(ch->sim, /*free_devq*/TRUE); 207 err1: 208 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 209 err0: 210 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 211 mtx_unlock(&ch->mtx); 212 mtx_destroy(&ch->mtx); 213 return (error); 214 } 215 216 static int 217 mvs_ch_detach(device_t dev) 218 { 219 struct mvs_channel *ch = device_get_softc(dev); 220 221 mtx_lock(&ch->mtx); 222 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 223 /* Forget about reset. */ 224 if (ch->resetting) { 225 ch->resetting = 0; 226 xpt_release_simq(ch->sim, TRUE); 227 } 228 xpt_free_path(ch->path); 229 xpt_bus_deregister(cam_sim_path(ch->sim)); 230 cam_sim_free(ch->sim, /*free_devq*/TRUE); 231 mtx_unlock(&ch->mtx); 232 233 if (ch->pm_level > 3) 234 callout_drain(&ch->pm_timer); 235 callout_drain(&ch->reset_timer); 236 bus_teardown_intr(dev, ch->r_irq, ch->ih); 237 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 238 239 mvs_ch_deinit(dev); 240 mvs_slotsfree(dev); 241 mvs_dmafini(dev); 242 243 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 244 mtx_destroy(&ch->mtx); 245 return (0); 246 } 247 248 static int 249 mvs_ch_init(device_t dev) 250 { 251 struct mvs_channel *ch = device_get_softc(dev); 252 uint32_t reg; 253 254 /* Disable port interrupts */ 255 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 256 /* Stop EDMA */ 257 ch->curr_mode = MVS_EDMA_UNKNOWN; 258 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 259 /* Clear and configure FIS interrupts. */ 260 ATA_OUTL(ch->r_mem, SATA_FISIC, 0); 261 reg = ATA_INL(ch->r_mem, SATA_FISC); 262 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 263 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 264 reg = ATA_INL(ch->r_mem, SATA_FISIM); 265 reg |= SATA_FISC_FISWAIT4HOSTRDYEN_B1; 266 ATA_OUTL(ch->r_mem, SATA_FISC, reg); 267 /* Clear SATA error register. */ 268 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 269 /* Clear any outstanding error interrupts. */ 270 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 271 /* Unmask all error interrupts */ 272 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 273 return (0); 274 } 275 276 static int 277 mvs_ch_deinit(device_t dev) 278 { 279 struct mvs_channel *ch = device_get_softc(dev); 280 281 /* Stop EDMA */ 282 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 283 /* Disable port interrupts. */ 284 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 285 return (0); 286 } 287 288 static int 289 mvs_ch_suspend(device_t dev) 290 { 291 struct mvs_channel *ch = device_get_softc(dev); 292 293 mtx_lock(&ch->mtx); 294 xpt_freeze_simq(ch->sim, 1); 295 while (ch->oslots) 296 msleep(ch, &ch->mtx, PRIBIO, "mvssusp", hz/100); 297 /* Forget about reset. */ 298 if (ch->resetting) { 299 ch->resetting = 0; 300 callout_stop(&ch->reset_timer); 301 xpt_release_simq(ch->sim, TRUE); 302 } 303 mvs_ch_deinit(dev); 304 mtx_unlock(&ch->mtx); 305 return (0); 306 } 307 308 static int 309 mvs_ch_resume(device_t dev) 310 { 311 struct mvs_channel *ch = device_get_softc(dev); 312 313 mtx_lock(&ch->mtx); 314 mvs_ch_init(dev); 315 mvs_reset(dev); 316 xpt_release_simq(ch->sim, TRUE); 317 mtx_unlock(&ch->mtx); 318 return (0); 319 } 320 321 struct mvs_dc_cb_args { 322 bus_addr_t maddr; 323 int error; 324 }; 325 326 static void 327 mvs_dmainit(device_t dev) 328 { 329 struct mvs_channel *ch = device_get_softc(dev); 330 struct mvs_dc_cb_args dcba; 331 332 /* EDMA command request area. */ 333 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 334 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 335 NULL, NULL, MVS_WORKRQ_SIZE, 1, MVS_WORKRQ_SIZE, 336 0, NULL, NULL, &ch->dma.workrq_tag)) 337 goto error; 338 if (bus_dmamem_alloc(ch->dma.workrq_tag, (void **)&ch->dma.workrq, 0, 339 &ch->dma.workrq_map)) 340 goto error; 341 if (bus_dmamap_load(ch->dma.workrq_tag, ch->dma.workrq_map, 342 ch->dma.workrq, MVS_WORKRQ_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 343 dcba.error) { 344 bus_dmamem_free(ch->dma.workrq_tag, 345 ch->dma.workrq, ch->dma.workrq_map); 346 goto error; 347 } 348 ch->dma.workrq_bus = dcba.maddr; 349 /* EDMA command response area. */ 350 if (bus_dma_tag_create(bus_get_dma_tag(dev), 256, 0, 351 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 352 NULL, NULL, MVS_WORKRP_SIZE, 1, MVS_WORKRP_SIZE, 353 0, NULL, NULL, &ch->dma.workrp_tag)) 354 goto error; 355 if (bus_dmamem_alloc(ch->dma.workrp_tag, (void **)&ch->dma.workrp, 0, 356 &ch->dma.workrp_map)) 357 goto error; 358 if (bus_dmamap_load(ch->dma.workrp_tag, ch->dma.workrp_map, 359 ch->dma.workrp, MVS_WORKRP_SIZE, mvs_dmasetupc_cb, &dcba, 0) || 360 dcba.error) { 361 bus_dmamem_free(ch->dma.workrp_tag, 362 ch->dma.workrp, ch->dma.workrp_map); 363 goto error; 364 } 365 ch->dma.workrp_bus = dcba.maddr; 366 /* Data area. */ 367 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, MVS_EPRD_MAX, 368 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 369 NULL, NULL, 370 MVS_SG_ENTRIES * PAGE_SIZE * MVS_MAX_SLOTS, 371 MVS_SG_ENTRIES, MVS_EPRD_MAX, 372 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 373 goto error; 374 } 375 return; 376 377 error: 378 device_printf(dev, "WARNING - DMA initialization failed\n"); 379 mvs_dmafini(dev); 380 } 381 382 static void 383 mvs_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 384 { 385 struct mvs_dc_cb_args *dcba = (struct mvs_dc_cb_args *)xsc; 386 387 if (!(dcba->error = error)) 388 dcba->maddr = segs[0].ds_addr; 389 } 390 391 static void 392 mvs_dmafini(device_t dev) 393 { 394 struct mvs_channel *ch = device_get_softc(dev); 395 396 if (ch->dma.data_tag) { 397 bus_dma_tag_destroy(ch->dma.data_tag); 398 ch->dma.data_tag = NULL; 399 } 400 if (ch->dma.workrp_bus) { 401 bus_dmamap_unload(ch->dma.workrp_tag, ch->dma.workrp_map); 402 bus_dmamem_free(ch->dma.workrp_tag, 403 ch->dma.workrp, ch->dma.workrp_map); 404 ch->dma.workrp_bus = 0; 405 ch->dma.workrp_map = NULL; 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_map = NULL; 418 ch->dma.workrq = NULL; 419 } 420 if (ch->dma.workrq_tag) { 421 bus_dma_tag_destroy(ch->dma.workrq_tag); 422 ch->dma.workrq_tag = NULL; 423 } 424 } 425 426 static void 427 mvs_slotsalloc(device_t dev) 428 { 429 struct mvs_channel *ch = device_get_softc(dev); 430 int i; 431 432 /* Alloc and setup command/dma slots */ 433 bzero(ch->slot, sizeof(ch->slot)); 434 for (i = 0; i < MVS_MAX_SLOTS; i++) { 435 struct mvs_slot *slot = &ch->slot[i]; 436 437 slot->dev = dev; 438 slot->slot = i; 439 slot->state = MVS_SLOT_EMPTY; 440 slot->ccb = NULL; 441 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 442 443 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 444 device_printf(ch->dev, "FAILURE - create data_map\n"); 445 } 446 } 447 448 static void 449 mvs_slotsfree(device_t dev) 450 { 451 struct mvs_channel *ch = device_get_softc(dev); 452 int i; 453 454 /* Free all dma slots */ 455 for (i = 0; i < MVS_MAX_SLOTS; i++) { 456 struct mvs_slot *slot = &ch->slot[i]; 457 458 callout_drain(&slot->timeout); 459 if (slot->dma.data_map) { 460 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 461 slot->dma.data_map = NULL; 462 } 463 } 464 } 465 466 static void 467 mvs_setup_edma_queues(device_t dev) 468 { 469 struct mvs_channel *ch = device_get_softc(dev); 470 uint64_t work; 471 472 /* Requests queue. */ 473 work = ch->dma.workrq_bus; 474 ATA_OUTL(ch->r_mem, EDMA_REQQBAH, work >> 32); 475 ATA_OUTL(ch->r_mem, EDMA_REQQIP, work & 0xffffffff); 476 ATA_OUTL(ch->r_mem, EDMA_REQQOP, work & 0xffffffff); 477 bus_dmamap_sync(ch->dma.workrq_tag, ch->dma.workrq_map, 478 BUS_DMASYNC_PREWRITE); 479 /* Reponses queue. */ 480 memset(ch->dma.workrp, 0xff, MVS_WORKRP_SIZE); 481 work = ch->dma.workrp_bus; 482 ATA_OUTL(ch->r_mem, EDMA_RESQBAH, work >> 32); 483 ATA_OUTL(ch->r_mem, EDMA_RESQIP, work & 0xffffffff); 484 ATA_OUTL(ch->r_mem, EDMA_RESQOP, work & 0xffffffff); 485 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 486 BUS_DMASYNC_PREREAD); 487 ch->out_idx = 0; 488 ch->in_idx = 0; 489 } 490 491 static void 492 mvs_set_edma_mode(device_t dev, enum mvs_edma_mode mode) 493 { 494 struct mvs_channel *ch = device_get_softc(dev); 495 int timeout; 496 uint32_t ecfg, fcfg, hc, ltm, unkn; 497 498 if (mode == ch->curr_mode) 499 return; 500 /* If we are running, we should stop first. */ 501 if (ch->curr_mode != MVS_EDMA_OFF) { 502 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EDSEDMA); 503 timeout = 0; 504 while (ATA_INL(ch->r_mem, EDMA_CMD) & EDMA_CMD_EENEDMA) { 505 DELAY(1000); 506 if (timeout++ > 1000) { 507 device_printf(dev, "stopping EDMA engine failed\n"); 508 break; 509 } 510 }; 511 } 512 ch->curr_mode = mode; 513 ch->fbs_enabled = 0; 514 ch->fake_busy = 0; 515 /* Report mode to controller. Needed for correct CCC operation. */ 516 MVS_EDMA(device_get_parent(dev), dev, mode); 517 /* Configure new mode. */ 518 ecfg = EDMA_CFG_RESERVED | EDMA_CFG_RESERVED2 | EDMA_CFG_EHOSTQUEUECACHEEN; 519 if (ch->pm_present) { 520 ecfg |= EDMA_CFG_EMASKRXPM; 521 if (ch->quirks & MVS_Q_GENIIE) { 522 ecfg |= EDMA_CFG_EEDMAFBS; 523 ch->fbs_enabled = 1; 524 } 525 } 526 if (ch->quirks & MVS_Q_GENI) 527 ecfg |= EDMA_CFG_ERDBSZ; 528 else if (ch->quirks & MVS_Q_GENII) 529 ecfg |= EDMA_CFG_ERDBSZEXT | EDMA_CFG_EWRBUFFERLEN; 530 if (ch->quirks & MVS_Q_CT) 531 ecfg |= EDMA_CFG_ECUTTHROUGHEN; 532 if (mode != MVS_EDMA_OFF) 533 ecfg |= EDMA_CFG_EEARLYCOMPLETIONEN; 534 if (mode == MVS_EDMA_QUEUED) 535 ecfg |= EDMA_CFG_EQUE; 536 else if (mode == MVS_EDMA_NCQ) 537 ecfg |= EDMA_CFG_ESATANATVCMDQUE; 538 ATA_OUTL(ch->r_mem, EDMA_CFG, ecfg); 539 mvs_setup_edma_queues(dev); 540 if (ch->quirks & MVS_Q_GENIIE) { 541 /* Configure FBS-related registers */ 542 fcfg = ATA_INL(ch->r_mem, SATA_FISC); 543 ltm = ATA_INL(ch->r_mem, SATA_LTM); 544 hc = ATA_INL(ch->r_mem, EDMA_HC); 545 if (ch->fbs_enabled) { 546 fcfg |= SATA_FISC_FISDMAACTIVATESYNCRESP; 547 if (mode == MVS_EDMA_NCQ) { 548 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 549 hc &= ~EDMA_IE_EDEVERR; 550 } else { 551 fcfg |= SATA_FISC_FISWAIT4HOSTRDYEN_B0; 552 hc |= EDMA_IE_EDEVERR; 553 } 554 ltm |= (1 << 8); 555 } else { 556 fcfg &= ~SATA_FISC_FISDMAACTIVATESYNCRESP; 557 fcfg &= ~SATA_FISC_FISWAIT4HOSTRDYEN_B0; 558 hc |= EDMA_IE_EDEVERR; 559 ltm &= ~(1 << 8); 560 } 561 ATA_OUTL(ch->r_mem, SATA_FISC, fcfg); 562 ATA_OUTL(ch->r_mem, SATA_LTM, ltm); 563 ATA_OUTL(ch->r_mem, EDMA_HC, hc); 564 /* This is some magic, required to handle several DRQs 565 * with basic DMA. */ 566 unkn = ATA_INL(ch->r_mem, EDMA_UNKN_RESD); 567 if (mode == MVS_EDMA_OFF) 568 unkn |= 1; 569 else 570 unkn &= ~1; 571 ATA_OUTL(ch->r_mem, EDMA_UNKN_RESD, unkn); 572 } 573 /* Run EDMA. */ 574 if (mode != MVS_EDMA_OFF) 575 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EENEDMA); 576 } 577 578 devclass_t mvs_devclass; 579 devclass_t mvsch_devclass; 580 static device_method_t mvsch_methods[] = { 581 DEVMETHOD(device_probe, mvs_ch_probe), 582 DEVMETHOD(device_attach, mvs_ch_attach), 583 DEVMETHOD(device_detach, mvs_ch_detach), 584 DEVMETHOD(device_suspend, mvs_ch_suspend), 585 DEVMETHOD(device_resume, mvs_ch_resume), 586 { 0, 0 } 587 }; 588 static driver_t mvsch_driver = { 589 "mvsch", 590 mvsch_methods, 591 sizeof(struct mvs_channel) 592 }; 593 DRIVER_MODULE(mvsch, mvs, mvsch_driver, mvsch_devclass, 0, 0); 594 DRIVER_MODULE(mvsch, sata, mvsch_driver, mvsch_devclass, 0, 0); 595 596 static void 597 mvs_phy_check_events(device_t dev, u_int32_t serr) 598 { 599 struct mvs_channel *ch = device_get_softc(dev); 600 601 if (ch->pm_level == 0) { 602 u_int32_t status = ATA_INL(ch->r_mem, SATA_SS); 603 union ccb *ccb; 604 605 if (bootverbose) { 606 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 607 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 608 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) { 609 device_printf(dev, "CONNECT requested\n"); 610 } else 611 device_printf(dev, "DISCONNECT requested\n"); 612 } 613 mvs_reset(dev); 614 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 615 return; 616 if (xpt_create_path(&ccb->ccb_h.path, NULL, 617 cam_sim_path(ch->sim), 618 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 619 xpt_free_ccb(ccb); 620 return; 621 } 622 xpt_rescan(ccb); 623 } 624 } 625 626 static void 627 mvs_notify_events(device_t dev) 628 { 629 struct mvs_channel *ch = device_get_softc(dev); 630 struct cam_path *dpath; 631 uint32_t fis; 632 int d; 633 634 /* Try to read PMP field from SDB FIS. Present only for Gen-IIe. */ 635 fis = ATA_INL(ch->r_mem, SATA_FISDW0); 636 if ((fis & 0x80ff) == 0x80a1) 637 d = (fis & 0x0f00) >> 8; 638 else 639 d = ch->pm_present ? 15 : 0; 640 if (bootverbose) 641 device_printf(dev, "SNTF %d\n", d); 642 if (xpt_create_path(&dpath, NULL, 643 xpt_path_path_id(ch->path), d, 0) == CAM_REQ_CMP) { 644 xpt_async(AC_SCSI_AEN, dpath, NULL); 645 xpt_free_path(dpath); 646 } 647 } 648 649 static void 650 mvs_ch_intr_locked(void *data) 651 { 652 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 653 device_t dev = (device_t)arg->arg; 654 struct mvs_channel *ch = device_get_softc(dev); 655 656 mtx_lock(&ch->mtx); 657 xpt_batch_start(ch->sim); 658 mvs_ch_intr(data); 659 xpt_batch_done(ch->sim); 660 mtx_unlock(&ch->mtx); 661 } 662 663 static void 664 mvs_ch_pm(void *arg) 665 { 666 device_t dev = (device_t)arg; 667 struct mvs_channel *ch = device_get_softc(dev); 668 uint32_t work; 669 670 if (ch->numrslots != 0) 671 return; 672 /* If we are idle - request power state transition. */ 673 work = ATA_INL(ch->r_mem, SATA_SC); 674 work &= ~SATA_SC_SPM_MASK; 675 if (ch->pm_level == 4) 676 work |= SATA_SC_SPM_PARTIAL; 677 else 678 work |= SATA_SC_SPM_SLUMBER; 679 ATA_OUTL(ch->r_mem, SATA_SC, work); 680 } 681 682 static void 683 mvs_ch_pm_wake(device_t dev) 684 { 685 struct mvs_channel *ch = device_get_softc(dev); 686 uint32_t work; 687 int timeout = 0; 688 689 work = ATA_INL(ch->r_mem, SATA_SS); 690 if (work & SATA_SS_IPM_ACTIVE) 691 return; 692 /* If we are not in active state - request power state transition. */ 693 work = ATA_INL(ch->r_mem, SATA_SC); 694 work &= ~SATA_SC_SPM_MASK; 695 work |= SATA_SC_SPM_ACTIVE; 696 ATA_OUTL(ch->r_mem, SATA_SC, work); 697 /* Wait for transition to happen. */ 698 while ((ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_IPM_ACTIVE) == 0 && 699 timeout++ < 100) { 700 DELAY(100); 701 } 702 } 703 704 static void 705 mvs_ch_intr(void *data) 706 { 707 struct mvs_intr_arg *arg = (struct mvs_intr_arg *)data; 708 device_t dev = (device_t)arg->arg; 709 struct mvs_channel *ch = device_get_softc(dev); 710 uint32_t iec, serr = 0, fisic = 0; 711 enum mvs_err_type et; 712 int i, ccs, port = -1, selfdis = 0; 713 int edma = (ch->numtslots != 0 || ch->numdslots != 0); 714 715 /* New item in response queue. */ 716 if ((arg->cause & 2) && edma) 717 mvs_crbq_intr(dev); 718 /* Some error or special event. */ 719 if (arg->cause & 1) { 720 iec = ATA_INL(ch->r_mem, EDMA_IEC); 721 if (iec & EDMA_IE_SERRINT) { 722 serr = ATA_INL(ch->r_mem, SATA_SE); 723 ATA_OUTL(ch->r_mem, SATA_SE, serr); 724 } 725 /* EDMA self-disabled due to error. */ 726 if (iec & EDMA_IE_ESELFDIS) 727 selfdis = 1; 728 /* Transport interrupt. */ 729 if (iec & EDMA_IE_ETRANSINT) { 730 /* For Gen-I this bit means self-disable. */ 731 if (ch->quirks & MVS_Q_GENI) 732 selfdis = 1; 733 /* For Gen-II this bit means SDB-N. */ 734 else if (ch->quirks & MVS_Q_GENII) 735 fisic = SATA_FISC_FISWAIT4HOSTRDYEN_B1; 736 else /* For Gen-IIe - read FIS interrupt cause. */ 737 fisic = ATA_INL(ch->r_mem, SATA_FISIC); 738 } 739 if (selfdis) 740 ch->curr_mode = MVS_EDMA_UNKNOWN; 741 ATA_OUTL(ch->r_mem, EDMA_IEC, ~iec); 742 /* Interface errors or Device error. */ 743 if (iec & (0xfc1e9000 | EDMA_IE_EDEVERR)) { 744 port = -1; 745 if (ch->numpslots != 0) { 746 ccs = 0; 747 } else { 748 if (ch->quirks & MVS_Q_GENIIE) 749 ccs = EDMA_S_EIOID(ATA_INL(ch->r_mem, EDMA_S)); 750 else 751 ccs = EDMA_S_EDEVQUETAG(ATA_INL(ch->r_mem, EDMA_S)); 752 /* Check if error is one-PMP-port-specific, */ 753 if (ch->fbs_enabled) { 754 /* Which ports were active. */ 755 for (i = 0; i < 16; i++) { 756 if (ch->numrslotspd[i] == 0) 757 continue; 758 if (port == -1) 759 port = i; 760 else if (port != i) { 761 port = -2; 762 break; 763 } 764 } 765 /* If several ports were active and EDMA still enabled - 766 * other ports are probably unaffected and may continue. 767 */ 768 if (port == -2 && !selfdis) { 769 uint16_t p = ATA_INL(ch->r_mem, SATA_SATAITC) >> 16; 770 port = ffs(p) - 1; 771 if (port != (fls(p) - 1)) 772 port = -2; 773 } 774 } 775 } 776 mvs_requeue_frozen(dev); 777 for (i = 0; i < MVS_MAX_SLOTS; i++) { 778 /* XXX: reqests in loading state. */ 779 if (((ch->rslots >> i) & 1) == 0) 780 continue; 781 if (port >= 0 && 782 ch->slot[i].ccb->ccb_h.target_id != port) 783 continue; 784 if (iec & EDMA_IE_EDEVERR) { /* Device error. */ 785 if (port != -2) { 786 if (ch->numtslots == 0) { 787 /* Untagged operation. */ 788 if (i == ccs) 789 et = MVS_ERR_TFE; 790 else 791 et = MVS_ERR_INNOCENT; 792 } else { 793 /* Tagged operation. */ 794 et = MVS_ERR_NCQ; 795 } 796 } else { 797 et = MVS_ERR_TFE; 798 ch->fatalerr = 1; 799 } 800 } else if (iec & 0xfc1e9000) { 801 if (ch->numtslots == 0 && 802 i != ccs && port != -2) 803 et = MVS_ERR_INNOCENT; 804 else 805 et = MVS_ERR_SATA; 806 } else 807 et = MVS_ERR_INVALID; 808 mvs_end_transaction(&ch->slot[i], et); 809 } 810 } 811 /* Process SDB-N. */ 812 if (fisic & SATA_FISC_FISWAIT4HOSTRDYEN_B1) 813 mvs_notify_events(dev); 814 if (fisic) 815 ATA_OUTL(ch->r_mem, SATA_FISIC, ~fisic); 816 /* Process hot-plug. */ 817 if ((iec & (EDMA_IE_EDEVDIS | EDMA_IE_EDEVCON)) || 818 (serr & SATA_SE_PHY_CHANGED)) 819 mvs_phy_check_events(dev, serr); 820 } 821 /* Legacy mode device interrupt. */ 822 if ((arg->cause & 2) && !edma) 823 mvs_legacy_intr(dev, arg->cause & 4); 824 } 825 826 static uint8_t 827 mvs_getstatus(device_t dev, int clear) 828 { 829 struct mvs_channel *ch = device_get_softc(dev); 830 uint8_t status = ATA_INB(ch->r_mem, clear ? ATA_STATUS : ATA_ALTSTAT); 831 832 if (ch->fake_busy) { 833 if (status & (ATA_S_BUSY | ATA_S_DRQ | ATA_S_ERROR)) 834 ch->fake_busy = 0; 835 else 836 status |= ATA_S_BUSY; 837 } 838 return (status); 839 } 840 841 static void 842 mvs_legacy_intr(device_t dev, int poll) 843 { 844 struct mvs_channel *ch = device_get_softc(dev); 845 struct mvs_slot *slot = &ch->slot[0]; /* PIO is always in slot 0. */ 846 union ccb *ccb = slot->ccb; 847 enum mvs_err_type et = MVS_ERR_NONE; 848 int port; 849 u_int length, resid, size; 850 uint8_t buf[2]; 851 uint8_t status, ireason; 852 853 /* Clear interrupt and get status. */ 854 status = mvs_getstatus(dev, 1); 855 if (slot->state < MVS_SLOT_RUNNING) 856 return; 857 port = ccb->ccb_h.target_id & 0x0f; 858 /* Wait a bit for late !BUSY status update. */ 859 if (status & ATA_S_BUSY) { 860 if (poll) 861 return; 862 DELAY(100); 863 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) { 864 DELAY(1000); 865 if ((status = mvs_getstatus(dev, 1)) & ATA_S_BUSY) 866 return; 867 } 868 } 869 /* If we got an error, we are done. */ 870 if (status & ATA_S_ERROR) { 871 et = MVS_ERR_TFE; 872 goto end_finished; 873 } 874 if (ccb->ccb_h.func_code == XPT_ATA_IO) { /* ATA PIO */ 875 ccb->ataio.res.status = status; 876 /* Are we moving data? */ 877 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 878 /* If data read command - get them. */ 879 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 880 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 881 device_printf(dev, "timeout waiting for read DRQ\n"); 882 et = MVS_ERR_TIMEOUT; 883 xpt_freeze_simq(ch->sim, 1); 884 ch->toslots |= (1 << slot->slot); 885 goto end_finished; 886 } 887 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 888 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 889 ch->transfersize / 2); 890 } 891 /* Update how far we've gotten. */ 892 ch->donecount += ch->transfersize; 893 /* Do we need more? */ 894 if (ccb->ataio.dxfer_len > ch->donecount) { 895 /* Set this transfer size according to HW capabilities */ 896 ch->transfersize = min(ccb->ataio.dxfer_len - ch->donecount, 897 ch->curr[ccb->ccb_h.target_id].bytecount); 898 /* If data write command - put them */ 899 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 900 if (mvs_wait(dev, ATA_S_DRQ, ATA_S_BUSY, 1000) < 0) { 901 device_printf(dev, 902 "timeout waiting for write DRQ\n"); 903 et = MVS_ERR_TIMEOUT; 904 xpt_freeze_simq(ch->sim, 1); 905 ch->toslots |= (1 << slot->slot); 906 goto end_finished; 907 } 908 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 909 (uint16_t *)(ccb->ataio.data_ptr + ch->donecount), 910 ch->transfersize / 2); 911 return; 912 } 913 /* If data read command, return & wait for interrupt */ 914 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 915 return; 916 } 917 } 918 } else if (ch->basic_dma) { /* ATAPI DMA */ 919 if (status & ATA_S_DWF) 920 et = MVS_ERR_TFE; 921 else if (ATA_INL(ch->r_mem, DMA_S) & DMA_S_ERR) 922 et = MVS_ERR_TFE; 923 /* Stop basic DMA. */ 924 ATA_OUTL(ch->r_mem, DMA_C, 0); 925 goto end_finished; 926 } else { /* ATAPI PIO */ 927 length = ATA_INB(ch->r_mem,ATA_CYL_LSB) | 928 (ATA_INB(ch->r_mem,ATA_CYL_MSB) << 8); 929 size = min(ch->transfersize, length); 930 ireason = ATA_INB(ch->r_mem,ATA_IREASON); 931 switch ((ireason & (ATA_I_CMD | ATA_I_IN)) | 932 (status & ATA_S_DRQ)) { 933 934 case ATAPI_P_CMDOUT: 935 device_printf(dev, "ATAPI CMDOUT\n"); 936 /* Return wait for interrupt */ 937 return; 938 939 case ATAPI_P_WRITE: 940 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 941 device_printf(dev, "trying to write on read buffer\n"); 942 et = MVS_ERR_TFE; 943 goto end_finished; 944 break; 945 } 946 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 947 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 948 (size + 1) / 2); 949 for (resid = ch->transfersize + (size & 1); 950 resid < length; resid += sizeof(int16_t)) 951 ATA_OUTW(ch->r_mem, ATA_DATA, 0); 952 ch->donecount += length; 953 /* Set next transfer size according to HW capabilities */ 954 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 955 ch->curr[ccb->ccb_h.target_id].bytecount); 956 /* Return wait for interrupt */ 957 return; 958 959 case ATAPI_P_READ: 960 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 961 device_printf(dev, "trying to read on write buffer\n"); 962 et = MVS_ERR_TFE; 963 goto end_finished; 964 } 965 if (size >= 2) { 966 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 967 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 968 size / 2); 969 } 970 if (size & 1) { 971 ATA_INSW_STRM(ch->r_mem, ATA_DATA, (void*)buf, 1); 972 ((uint8_t *)ccb->csio.data_ptr + ch->donecount + 973 (size & ~1))[0] = buf[0]; 974 } 975 for (resid = ch->transfersize + (size & 1); 976 resid < length; resid += sizeof(int16_t)) 977 ATA_INW(ch->r_mem, ATA_DATA); 978 ch->donecount += length; 979 /* Set next transfer size according to HW capabilities */ 980 ch->transfersize = min(ccb->csio.dxfer_len - ch->donecount, 981 ch->curr[ccb->ccb_h.target_id].bytecount); 982 /* Return wait for interrupt */ 983 return; 984 985 case ATAPI_P_DONEDRQ: 986 device_printf(dev, 987 "WARNING - DONEDRQ non conformant device\n"); 988 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 989 ATA_INSW_STRM(ch->r_mem, ATA_DATA, 990 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 991 length / 2); 992 ch->donecount += length; 993 } 994 else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 995 ATA_OUTSW_STRM(ch->r_mem, ATA_DATA, 996 (uint16_t *)(ccb->csio.data_ptr + ch->donecount), 997 length / 2); 998 ch->donecount += length; 999 } 1000 else 1001 et = MVS_ERR_TFE; 1002 /* FALLTHROUGH */ 1003 1004 case ATAPI_P_ABORT: 1005 case ATAPI_P_DONE: 1006 if (status & (ATA_S_ERROR | ATA_S_DWF)) 1007 et = MVS_ERR_TFE; 1008 goto end_finished; 1009 1010 default: 1011 device_printf(dev, "unknown transfer phase" 1012 " (status %02x, ireason %02x)\n", 1013 status, ireason); 1014 et = MVS_ERR_TFE; 1015 } 1016 } 1017 1018 end_finished: 1019 mvs_end_transaction(slot, et); 1020 } 1021 1022 static void 1023 mvs_crbq_intr(device_t dev) 1024 { 1025 struct mvs_channel *ch = device_get_softc(dev); 1026 struct mvs_crpb *crpb; 1027 union ccb *ccb; 1028 int in_idx, fin_idx, cin_idx, slot; 1029 uint32_t val; 1030 uint16_t flags; 1031 1032 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1033 if (val == 0) 1034 val = ATA_INL(ch->r_mem, EDMA_RESQIP); 1035 in_idx = (val & EDMA_RESQP_ERPQP_MASK) >> 1036 EDMA_RESQP_ERPQP_SHIFT; 1037 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1038 BUS_DMASYNC_POSTREAD); 1039 fin_idx = cin_idx = ch->in_idx; 1040 ch->in_idx = in_idx; 1041 while (in_idx != cin_idx) { 1042 crpb = (struct mvs_crpb *) 1043 (ch->dma.workrp + MVS_CRPB_OFFSET + 1044 (MVS_CRPB_SIZE * cin_idx)); 1045 slot = le16toh(crpb->id) & MVS_CRPB_TAG_MASK; 1046 flags = le16toh(crpb->rspflg); 1047 /* 1048 * Handle only successfull completions here. 1049 * Errors will be handled by main intr handler. 1050 */ 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 if (ch->numtslots != 0 || 1056 (flags & EDMA_IE_EDEVERR) == 0) { 1057 crpb->id = 0xffff; 1058 crpb->rspflg = 0xffff; 1059 if (ch->slot[slot].state >= MVS_SLOT_RUNNING) { 1060 ccb = ch->slot[slot].ccb; 1061 ccb->ataio.res.status = 1062 (flags & MVS_CRPB_ATASTS_MASK) >> 1063 MVS_CRPB_ATASTS_SHIFT; 1064 mvs_end_transaction(&ch->slot[slot], MVS_ERR_NONE); 1065 } else { 1066 device_printf(dev, "Unused tag in CRPB " 1067 "%d (%d->%d) tag %d flags %04x rs %08x\n", 1068 cin_idx, fin_idx, in_idx, slot, flags, 1069 ch->rslots); 1070 } 1071 } else { 1072 device_printf(dev, 1073 "CRPB with error %d tag %d flags %04x\n", 1074 cin_idx, slot, flags); 1075 } 1076 cin_idx = (cin_idx + 1) & (MVS_MAX_SLOTS - 1); 1077 } 1078 bus_dmamap_sync(ch->dma.workrp_tag, ch->dma.workrp_map, 1079 BUS_DMASYNC_PREREAD); 1080 if (cin_idx == ch->in_idx) { 1081 ATA_OUTL(ch->r_mem, EDMA_RESQOP, 1082 ch->dma.workrp_bus | (cin_idx << EDMA_RESQP_ERPQP_SHIFT)); 1083 } 1084 } 1085 1086 /* Must be called with channel locked. */ 1087 static int 1088 mvs_check_collision(device_t dev, union ccb *ccb) 1089 { 1090 struct mvs_channel *ch = device_get_softc(dev); 1091 1092 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1093 /* NCQ DMA */ 1094 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1095 /* Can't mix NCQ and non-NCQ DMA commands. */ 1096 if (ch->numdslots != 0) 1097 return (1); 1098 /* Can't mix NCQ and PIO commands. */ 1099 if (ch->numpslots != 0) 1100 return (1); 1101 /* If we have no FBS */ 1102 if (!ch->fbs_enabled) { 1103 /* Tagged command while tagged to other target is active. */ 1104 if (ch->numtslots != 0 && 1105 ch->taggedtarget != ccb->ccb_h.target_id) 1106 return (1); 1107 } 1108 /* Non-NCQ DMA */ 1109 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1110 /* Can't mix non-NCQ DMA and NCQ commands. */ 1111 if (ch->numtslots != 0) 1112 return (1); 1113 /* Can't mix non-NCQ DMA and PIO commands. */ 1114 if (ch->numpslots != 0) 1115 return (1); 1116 /* PIO */ 1117 } else { 1118 /* Can't mix PIO with anything. */ 1119 if (ch->numrslots != 0) 1120 return (1); 1121 } 1122 if (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1123 /* Atomic command while anything active. */ 1124 if (ch->numrslots != 0) 1125 return (1); 1126 } 1127 } else { /* ATAPI */ 1128 /* ATAPI goes without EDMA, so can't mix it with anything. */ 1129 if (ch->numrslots != 0) 1130 return (1); 1131 } 1132 /* We have some atomic command running. */ 1133 if (ch->aslots != 0) 1134 return (1); 1135 return (0); 1136 } 1137 1138 static void 1139 mvs_tfd_read(device_t dev, union ccb *ccb) 1140 { 1141 struct mvs_channel *ch = device_get_softc(dev); 1142 struct ata_res *res = &ccb->ataio.res; 1143 1144 res->status = ATA_INB(ch->r_mem, ATA_ALTSTAT); 1145 res->error = ATA_INB(ch->r_mem, ATA_ERROR); 1146 res->device = ATA_INB(ch->r_mem, ATA_DRIVE); 1147 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_HOB); 1148 res->sector_count_exp = ATA_INB(ch->r_mem, ATA_COUNT); 1149 res->lba_low_exp = ATA_INB(ch->r_mem, ATA_SECTOR); 1150 res->lba_mid_exp = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1151 res->lba_high_exp = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1152 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 1153 res->sector_count = ATA_INB(ch->r_mem, ATA_COUNT); 1154 res->lba_low = ATA_INB(ch->r_mem, ATA_SECTOR); 1155 res->lba_mid = ATA_INB(ch->r_mem, ATA_CYL_LSB); 1156 res->lba_high = ATA_INB(ch->r_mem, ATA_CYL_MSB); 1157 } 1158 1159 static void 1160 mvs_tfd_write(device_t dev, union ccb *ccb) 1161 { 1162 struct mvs_channel *ch = device_get_softc(dev); 1163 struct ata_cmd *cmd = &ccb->ataio.cmd; 1164 1165 ATA_OUTB(ch->r_mem, ATA_DRIVE, cmd->device); 1166 ATA_OUTB(ch->r_mem, ATA_CONTROL, cmd->control); 1167 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features_exp); 1168 ATA_OUTB(ch->r_mem, ATA_FEATURE, cmd->features); 1169 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count_exp); 1170 ATA_OUTB(ch->r_mem, ATA_COUNT, cmd->sector_count); 1171 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low_exp); 1172 ATA_OUTB(ch->r_mem, ATA_SECTOR, cmd->lba_low); 1173 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid_exp); 1174 ATA_OUTB(ch->r_mem, ATA_CYL_LSB, cmd->lba_mid); 1175 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high_exp); 1176 ATA_OUTB(ch->r_mem, ATA_CYL_MSB, cmd->lba_high); 1177 ATA_OUTB(ch->r_mem, ATA_COMMAND, cmd->command); 1178 } 1179 1180 1181 /* Must be called with channel locked. */ 1182 static void 1183 mvs_begin_transaction(device_t dev, union ccb *ccb) 1184 { 1185 struct mvs_channel *ch = device_get_softc(dev); 1186 struct mvs_slot *slot; 1187 int slotn, tag; 1188 1189 if (ch->pm_level > 0) 1190 mvs_ch_pm_wake(dev); 1191 /* Softreset is a special case. */ 1192 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1193 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1194 mvs_softreset(dev, ccb); 1195 return; 1196 } 1197 /* Choose empty slot. */ 1198 slotn = ffs(~ch->oslots) - 1; 1199 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1200 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1201 if (ch->quirks & MVS_Q_GENIIE) 1202 tag = ffs(~ch->otagspd[ccb->ccb_h.target_id]) - 1; 1203 else 1204 tag = slotn; 1205 } else 1206 tag = 0; 1207 /* Occupy chosen slot. */ 1208 slot = &ch->slot[slotn]; 1209 slot->ccb = ccb; 1210 slot->tag = tag; 1211 /* Stop PM timer. */ 1212 if (ch->numrslots == 0 && ch->pm_level > 3) 1213 callout_stop(&ch->pm_timer); 1214 /* Update channel stats. */ 1215 ch->oslots |= (1 << slot->slot); 1216 ch->numrslots++; 1217 ch->numrslotspd[ccb->ccb_h.target_id]++; 1218 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1219 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 1220 ch->otagspd[ccb->ccb_h.target_id] |= (1 << slot->tag); 1221 ch->numtslots++; 1222 ch->numtslotspd[ccb->ccb_h.target_id]++; 1223 ch->taggedtarget = ccb->ccb_h.target_id; 1224 mvs_set_edma_mode(dev, MVS_EDMA_NCQ); 1225 } else if (ccb->ataio.cmd.flags & CAM_ATAIO_DMA) { 1226 ch->numdslots++; 1227 mvs_set_edma_mode(dev, MVS_EDMA_ON); 1228 } else { 1229 ch->numpslots++; 1230 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1231 } 1232 if (ccb->ataio.cmd.flags & 1233 (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT)) { 1234 ch->aslots |= (1 << slot->slot); 1235 } 1236 } else { 1237 uint8_t *cdb = (ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1238 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes; 1239 ch->numpslots++; 1240 /* Use ATAPI DMA only for commands without under-/overruns. */ 1241 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1242 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA && 1243 (ch->quirks & MVS_Q_SOC) == 0 && 1244 (cdb[0] == 0x08 || 1245 cdb[0] == 0x0a || 1246 cdb[0] == 0x28 || 1247 cdb[0] == 0x2a || 1248 cdb[0] == 0x88 || 1249 cdb[0] == 0x8a || 1250 cdb[0] == 0xa8 || 1251 cdb[0] == 0xaa || 1252 cdb[0] == 0xbe)) { 1253 ch->basic_dma = 1; 1254 } 1255 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 1256 } 1257 if (ch->numpslots == 0 || ch->basic_dma) { 1258 void *buf; 1259 bus_size_t size; 1260 1261 slot->state = MVS_SLOT_LOADING; 1262 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1263 buf = ccb->ataio.data_ptr; 1264 size = ccb->ataio.dxfer_len; 1265 } else { 1266 buf = ccb->csio.data_ptr; 1267 size = ccb->csio.dxfer_len; 1268 } 1269 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1270 buf, size, mvs_dmasetprd, slot, 0); 1271 } else 1272 mvs_legacy_execute_transaction(slot); 1273 } 1274 1275 /* Locked by busdma engine. */ 1276 static void 1277 mvs_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1278 { 1279 struct mvs_slot *slot = arg; 1280 struct mvs_channel *ch = device_get_softc(slot->dev); 1281 struct mvs_eprd *eprd; 1282 int i; 1283 1284 if (error) { 1285 device_printf(slot->dev, "DMA load error\n"); 1286 mvs_end_transaction(slot, MVS_ERR_INVALID); 1287 return; 1288 } 1289 KASSERT(nsegs <= MVS_SG_ENTRIES, ("too many DMA segment entries\n")); 1290 /* If there is only one segment - no need to use S/G table on Gen-IIe. */ 1291 if (nsegs == 1 && ch->basic_dma == 0 && (ch->quirks & MVS_Q_GENIIE)) { 1292 slot->dma.addr = segs[0].ds_addr; 1293 slot->dma.len = segs[0].ds_len; 1294 } else { 1295 slot->dma.addr = 0; 1296 /* Get a piece of the workspace for this EPRD */ 1297 eprd = (struct mvs_eprd *) 1298 (ch->dma.workrq + MVS_EPRD_OFFSET + (MVS_EPRD_SIZE * slot->slot)); 1299 /* Fill S/G table */ 1300 for (i = 0; i < nsegs; i++) { 1301 eprd[i].prdbal = htole32(segs[i].ds_addr); 1302 eprd[i].bytecount = htole32(segs[i].ds_len & MVS_EPRD_MASK); 1303 eprd[i].prdbah = htole32((segs[i].ds_addr >> 16) >> 16); 1304 } 1305 eprd[i - 1].bytecount |= htole32(MVS_EPRD_EOF); 1306 } 1307 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1308 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1309 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1310 if (ch->basic_dma) 1311 mvs_legacy_execute_transaction(slot); 1312 else 1313 mvs_execute_transaction(slot); 1314 } 1315 1316 static void 1317 mvs_legacy_execute_transaction(struct mvs_slot *slot) 1318 { 1319 device_t dev = slot->dev; 1320 struct mvs_channel *ch = device_get_softc(dev); 1321 bus_addr_t eprd; 1322 union ccb *ccb = slot->ccb; 1323 int port = ccb->ccb_h.target_id & 0x0f; 1324 int timeout; 1325 1326 slot->state = MVS_SLOT_RUNNING; 1327 ch->rslots |= (1 << slot->slot); 1328 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 1329 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1330 mvs_tfd_write(dev, ccb); 1331 /* Device reset doesn't interrupt. */ 1332 if (ccb->ataio.cmd.command == ATA_DEVICE_RESET) { 1333 int timeout = 1000000; 1334 do { 1335 DELAY(10); 1336 ccb->ataio.res.status = ATA_INB(ch->r_mem, ATA_STATUS); 1337 } while (ccb->ataio.res.status & ATA_S_BUSY && timeout--); 1338 mvs_legacy_intr(dev, 1); 1339 return; 1340 } 1341 ch->donecount = 0; 1342 ch->transfersize = min(ccb->ataio.dxfer_len, 1343 ch->curr[port].bytecount); 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(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 1000, 1421 (timeout_t*)mvs_timeout, slot); 1422 } 1423 1424 /* Must be called with channel locked. */ 1425 static void 1426 mvs_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(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 1000, 1535 (timeout_t*)mvs_timeout, slot); 1536 return; 1537 } 1538 1539 /* Must be called with channel locked. */ 1540 static void 1541 mvs_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. */ 1557 static void 1558 mvs_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(&slot->timeout, 1573 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1574 (timeout_t*)mvs_timeout, slot); 1575 } 1576 } 1577 1578 /* Locked by callout mechanism. */ 1579 static void 1580 mvs_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. */ 1610 static void 1611 mvs_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 1777 static void 1778 mvs_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"); 1794 completeall: 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 1854 static void 1855 mvs_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 1915 static void 1916 mvs_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 1937 static int 1938 mvs_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 1955 static void 1956 mvs_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 1972 static void 1973 mvs_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 2001 static void 2002 mvs_reset(device_t dev) 2003 { 2004 struct mvs_channel *ch = device_get_softc(dev); 2005 int i; 2006 2007 xpt_freeze_simq(ch->sim, 1); 2008 if (bootverbose) 2009 device_printf(dev, "MVS reset...\n"); 2010 /* Forget about previous reset. */ 2011 if (ch->resetting) { 2012 ch->resetting = 0; 2013 callout_stop(&ch->reset_timer); 2014 xpt_release_simq(ch->sim, TRUE); 2015 } 2016 /* Requeue freezed command. */ 2017 mvs_requeue_frozen(dev); 2018 /* Kill the engine and requeue all running commands. */ 2019 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2020 ATA_OUTL(ch->r_mem, DMA_C, 0); 2021 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2022 /* Do we have a running request on slot? */ 2023 if (ch->slot[i].state < MVS_SLOT_RUNNING) 2024 continue; 2025 /* XXX; Commands in loading state. */ 2026 mvs_end_transaction(&ch->slot[i], MVS_ERR_INNOCENT); 2027 } 2028 for (i = 0; i < MVS_MAX_SLOTS; i++) { 2029 if (!ch->hold[i]) 2030 continue; 2031 xpt_done(ch->hold[i]); 2032 ch->hold[i] = NULL; 2033 ch->numhslots--; 2034 } 2035 if (ch->toslots != 0) 2036 xpt_release_simq(ch->sim, TRUE); 2037 ch->eslots = 0; 2038 ch->toslots = 0; 2039 ch->fatalerr = 0; 2040 ch->fake_busy = 0; 2041 /* Tell the XPT about the event */ 2042 xpt_async(AC_BUS_RESET, ch->path, NULL); 2043 ATA_OUTL(ch->r_mem, EDMA_IEM, 0); 2044 ATA_OUTL(ch->r_mem, EDMA_CMD, EDMA_CMD_EATARST); 2045 DELAY(25); 2046 ATA_OUTL(ch->r_mem, EDMA_CMD, 0); 2047 /* Reset and reconnect PHY, */ 2048 if (!mvs_sata_phy_reset(dev)) { 2049 if (bootverbose) 2050 device_printf(dev, "MVS reset: device not found\n"); 2051 ch->devices = 0; 2052 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2053 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2054 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2055 xpt_release_simq(ch->sim, TRUE); 2056 return; 2057 } 2058 if (bootverbose) 2059 device_printf(dev, "MVS reset: device found\n"); 2060 /* Wait for clearing busy status. */ 2061 if ((i = mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, 2062 dumping ? 31000 : 0)) < 0) { 2063 if (dumping) { 2064 device_printf(dev, 2065 "MVS reset: device not ready after 31000ms\n"); 2066 } else 2067 ch->resetting = 310; 2068 } else if (bootverbose) 2069 device_printf(dev, "MVS reset: device ready after %dms\n", i); 2070 ch->devices = 1; 2071 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2072 ATA_OUTL(ch->r_mem, EDMA_IEC, 0); 2073 ATA_OUTL(ch->r_mem, EDMA_IEM, ~EDMA_IE_TRANSIENT); 2074 if (ch->resetting) 2075 callout_reset(&ch->reset_timer, hz / 10, mvs_reset_to, dev); 2076 else 2077 xpt_release_simq(ch->sim, TRUE); 2078 } 2079 2080 static void 2081 mvs_softreset(device_t dev, union ccb *ccb) 2082 { 2083 struct mvs_channel *ch = device_get_softc(dev); 2084 int port = ccb->ccb_h.target_id & 0x0f; 2085 int i, stuck; 2086 uint8_t status; 2087 2088 mvs_set_edma_mode(dev, MVS_EDMA_OFF); 2089 ATA_OUTB(ch->r_mem, SATA_SATAICTL, port << SATA_SATAICTL_PMPTX_SHIFT); 2090 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2091 DELAY(10000); 2092 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2093 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2094 /* Wait for clearing busy status. */ 2095 if ((i = mvs_wait(dev, 0, ATA_S_BUSY, ccb->ccb_h.timeout)) < 0) { 2096 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2097 stuck = 1; 2098 } else { 2099 status = mvs_getstatus(dev, 0); 2100 if (status & ATA_S_ERROR) 2101 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2102 else 2103 ccb->ccb_h.status |= CAM_REQ_CMP; 2104 if (status & ATA_S_DRQ) 2105 stuck = 1; 2106 else 2107 stuck = 0; 2108 } 2109 mvs_tfd_read(dev, ccb); 2110 2111 /* 2112 * XXX: If some device on PMP failed to soft-reset, 2113 * try to recover by sending dummy soft-reset to PMP. 2114 */ 2115 if (stuck && ch->pm_present && port != 15) { 2116 ATA_OUTB(ch->r_mem, SATA_SATAICTL, 2117 15 << SATA_SATAICTL_PMPTX_SHIFT); 2118 ATA_OUTB(ch->r_mem, ATA_CONTROL, ATA_A_RESET); 2119 DELAY(10000); 2120 ATA_OUTB(ch->r_mem, ATA_CONTROL, 0); 2121 mvs_wait(dev, 0, ATA_S_BUSY | ATA_S_DRQ, ccb->ccb_h.timeout); 2122 } 2123 2124 xpt_done(ccb); 2125 } 2126 2127 static int 2128 mvs_sata_connect(struct mvs_channel *ch) 2129 { 2130 u_int32_t status; 2131 int timeout, found = 0; 2132 2133 /* Wait up to 100ms for "connect well" */ 2134 for (timeout = 0; timeout < 1000 ; timeout++) { 2135 status = ATA_INL(ch->r_mem, SATA_SS); 2136 if ((status & SATA_SS_DET_MASK) != SATA_SS_DET_NO_DEVICE) 2137 found = 1; 2138 if (((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_ONLINE) && 2139 ((status & SATA_SS_SPD_MASK) != SATA_SS_SPD_NO_SPEED) && 2140 ((status & SATA_SS_IPM_MASK) == SATA_SS_IPM_ACTIVE)) 2141 break; 2142 if ((status & SATA_SS_DET_MASK) == SATA_SS_DET_PHY_OFFLINE) { 2143 if (bootverbose) { 2144 device_printf(ch->dev, "SATA offline status=%08x\n", 2145 status); 2146 } 2147 return (0); 2148 } 2149 if (found == 0 && timeout >= 100) 2150 break; 2151 DELAY(100); 2152 } 2153 if (timeout >= 1000 || !found) { 2154 if (bootverbose) { 2155 device_printf(ch->dev, 2156 "SATA connect timeout time=%dus status=%08x\n", 2157 timeout * 100, status); 2158 } 2159 return (0); 2160 } 2161 if (bootverbose) { 2162 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2163 timeout * 100, status); 2164 } 2165 /* Clear SATA error register */ 2166 ATA_OUTL(ch->r_mem, SATA_SE, 0xffffffff); 2167 return (1); 2168 } 2169 2170 static int 2171 mvs_sata_phy_reset(device_t dev) 2172 { 2173 struct mvs_channel *ch = device_get_softc(dev); 2174 int sata_rev; 2175 uint32_t val; 2176 2177 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2178 if (sata_rev == 1) 2179 val = SATA_SC_SPD_SPEED_GEN1; 2180 else if (sata_rev == 2) 2181 val = SATA_SC_SPD_SPEED_GEN2; 2182 else if (sata_rev == 3) 2183 val = SATA_SC_SPD_SPEED_GEN3; 2184 else 2185 val = 0; 2186 ATA_OUTL(ch->r_mem, SATA_SC, 2187 SATA_SC_DET_RESET | val | 2188 SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER); 2189 DELAY(1000); 2190 ATA_OUTL(ch->r_mem, SATA_SC, 2191 SATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2192 (SATA_SC_IPM_DIS_PARTIAL | SATA_SC_IPM_DIS_SLUMBER))); 2193 if (!mvs_sata_connect(ch)) { 2194 if (ch->pm_level > 0) 2195 ATA_OUTL(ch->r_mem, SATA_SC, SATA_SC_DET_DISABLE); 2196 return (0); 2197 } 2198 return (1); 2199 } 2200 2201 static int 2202 mvs_check_ids(device_t dev, union ccb *ccb) 2203 { 2204 struct mvs_channel *ch = device_get_softc(dev); 2205 2206 if (ccb->ccb_h.target_id > ((ch->quirks & MVS_Q_GENI) ? 0 : 15)) { 2207 ccb->ccb_h.status = CAM_TID_INVALID; 2208 xpt_done(ccb); 2209 return (-1); 2210 } 2211 if (ccb->ccb_h.target_lun != 0) { 2212 ccb->ccb_h.status = CAM_LUN_INVALID; 2213 xpt_done(ccb); 2214 return (-1); 2215 } 2216 return (0); 2217 } 2218 2219 static void 2220 mvsaction(struct cam_sim *sim, union ccb *ccb) 2221 { 2222 device_t dev, parent; 2223 struct mvs_channel *ch; 2224 2225 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mvsaction func_code=%x\n", 2226 ccb->ccb_h.func_code)); 2227 2228 ch = (struct mvs_channel *)cam_sim_softc(sim); 2229 dev = ch->dev; 2230 switch (ccb->ccb_h.func_code) { 2231 /* Common cases first */ 2232 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2233 case XPT_SCSI_IO: 2234 if (mvs_check_ids(dev, ccb)) 2235 return; 2236 if (ch->devices == 0 || 2237 (ch->pm_present == 0 && 2238 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2239 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2240 break; 2241 } 2242 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2243 /* Check for command collision. */ 2244 if (mvs_check_collision(dev, ccb)) { 2245 /* Freeze command. */ 2246 ch->frozen = ccb; 2247 /* We have only one frozen slot, so freeze simq also. */ 2248 xpt_freeze_simq(ch->sim, 1); 2249 return; 2250 } 2251 mvs_begin_transaction(dev, ccb); 2252 return; 2253 case XPT_EN_LUN: /* Enable LUN as a target */ 2254 case XPT_TARGET_IO: /* Execute target I/O request */ 2255 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2256 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2257 case XPT_ABORT: /* Abort the specified CCB */ 2258 /* XXX Implement */ 2259 ccb->ccb_h.status = CAM_REQ_INVALID; 2260 break; 2261 case XPT_SET_TRAN_SETTINGS: 2262 { 2263 struct ccb_trans_settings *cts = &ccb->cts; 2264 struct mvs_device *d; 2265 2266 if (mvs_check_ids(dev, ccb)) 2267 return; 2268 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2269 d = &ch->curr[ccb->ccb_h.target_id]; 2270 else 2271 d = &ch->user[ccb->ccb_h.target_id]; 2272 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2273 d->revision = cts->xport_specific.sata.revision; 2274 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2275 d->mode = cts->xport_specific.sata.mode; 2276 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) { 2277 d->bytecount = min((ch->quirks & MVS_Q_GENIIE) ? 8192 : 2048, 2278 cts->xport_specific.sata.bytecount); 2279 } 2280 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2281 d->tags = min(MVS_MAX_SLOTS, cts->xport_specific.sata.tags); 2282 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2283 ch->pm_present = cts->xport_specific.sata.pm_present; 2284 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2285 d->atapi = cts->xport_specific.sata.atapi; 2286 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2287 d->caps = cts->xport_specific.sata.caps; 2288 ccb->ccb_h.status = CAM_REQ_CMP; 2289 break; 2290 } 2291 case XPT_GET_TRAN_SETTINGS: 2292 /* Get default/user set transfer settings for the target */ 2293 { 2294 struct ccb_trans_settings *cts = &ccb->cts; 2295 struct mvs_device *d; 2296 uint32_t status; 2297 2298 if (mvs_check_ids(dev, ccb)) 2299 return; 2300 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2301 d = &ch->curr[ccb->ccb_h.target_id]; 2302 else 2303 d = &ch->user[ccb->ccb_h.target_id]; 2304 cts->protocol = PROTO_ATA; 2305 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2306 cts->transport = XPORT_SATA; 2307 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2308 cts->proto_specific.valid = 0; 2309 cts->xport_specific.sata.valid = 0; 2310 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2311 (ccb->ccb_h.target_id == 15 || 2312 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2313 status = ATA_INL(ch->r_mem, SATA_SS) & SATA_SS_SPD_MASK; 2314 if (status & 0x0f0) { 2315 cts->xport_specific.sata.revision = 2316 (status & 0x0f0) >> 4; 2317 cts->xport_specific.sata.valid |= 2318 CTS_SATA_VALID_REVISION; 2319 } 2320 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2321 // if (ch->pm_level) 2322 // cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2323 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2324 cts->xport_specific.sata.caps &= 2325 ch->user[ccb->ccb_h.target_id].caps; 2326 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2327 } else { 2328 cts->xport_specific.sata.revision = d->revision; 2329 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2330 cts->xport_specific.sata.caps = d->caps; 2331 if (cts->type == CTS_TYPE_CURRENT_SETTINGS/* && 2332 (ch->quirks & MVS_Q_GENIIE) == 0*/) 2333 cts->xport_specific.sata.caps &= ~CTS_SATA_CAPS_H_AN; 2334 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2335 } 2336 cts->xport_specific.sata.mode = d->mode; 2337 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2338 cts->xport_specific.sata.bytecount = d->bytecount; 2339 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2340 cts->xport_specific.sata.pm_present = ch->pm_present; 2341 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2342 cts->xport_specific.sata.tags = d->tags; 2343 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2344 cts->xport_specific.sata.atapi = d->atapi; 2345 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2346 ccb->ccb_h.status = CAM_REQ_CMP; 2347 break; 2348 } 2349 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2350 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2351 mvs_reset(dev); 2352 ccb->ccb_h.status = CAM_REQ_CMP; 2353 break; 2354 case XPT_TERM_IO: /* Terminate the I/O process */ 2355 /* XXX Implement */ 2356 ccb->ccb_h.status = CAM_REQ_INVALID; 2357 break; 2358 case XPT_PATH_INQ: /* Path routing inquiry */ 2359 { 2360 struct ccb_pathinq *cpi = &ccb->cpi; 2361 2362 parent = device_get_parent(dev); 2363 cpi->version_num = 1; /* XXX??? */ 2364 cpi->hba_inquiry = PI_SDTR_ABLE; 2365 if (!(ch->quirks & MVS_Q_GENI)) { 2366 cpi->hba_inquiry |= PI_SATAPM; 2367 /* Gen-II is extremely slow with NCQ on PMP. */ 2368 if ((ch->quirks & MVS_Q_GENIIE) || ch->pm_present == 0) 2369 cpi->hba_inquiry |= PI_TAG_ABLE; 2370 } 2371 cpi->target_sprt = 0; 2372 cpi->hba_misc = PIM_SEQSCAN; 2373 cpi->hba_eng_cnt = 0; 2374 if (!(ch->quirks & MVS_Q_GENI)) 2375 cpi->max_target = 15; 2376 else 2377 cpi->max_target = 0; 2378 cpi->max_lun = 0; 2379 cpi->initiator_id = 0; 2380 cpi->bus_id = cam_sim_bus(sim); 2381 cpi->base_transfer_speed = 150000; 2382 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2383 strncpy(cpi->hba_vid, "Marvell", HBA_IDLEN); 2384 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2385 cpi->unit_number = cam_sim_unit(sim); 2386 cpi->transport = XPORT_SATA; 2387 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2388 cpi->protocol = PROTO_ATA; 2389 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2390 cpi->maxio = MAXPHYS; 2391 if ((ch->quirks & MVS_Q_SOC) == 0) { 2392 cpi->hba_vendor = pci_get_vendor(parent); 2393 cpi->hba_device = pci_get_device(parent); 2394 cpi->hba_subvendor = pci_get_subvendor(parent); 2395 cpi->hba_subdevice = pci_get_subdevice(parent); 2396 } 2397 cpi->ccb_h.status = CAM_REQ_CMP; 2398 break; 2399 } 2400 default: 2401 ccb->ccb_h.status = CAM_REQ_INVALID; 2402 break; 2403 } 2404 xpt_done(ccb); 2405 } 2406 2407 static void 2408 mvspoll(struct cam_sim *sim) 2409 { 2410 struct mvs_channel *ch = (struct mvs_channel *)cam_sim_softc(sim); 2411 struct mvs_intr_arg arg; 2412 2413 arg.arg = ch->dev; 2414 arg.cause = 2 | 4; /* XXX */ 2415 mvs_ch_intr(&arg); 2416 if (ch->resetting != 0 && 2417 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2418 ch->resetpolldiv = 1000; 2419 mvs_reset_to(ch->dev); 2420 } 2421 } 2422 2423