ahcisata_core.c revision 1.99
1 /* $NetBSD: ahcisata_core.c,v 1.99 2021/06/23 00:56:41 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: ahcisata_core.c,v 1.99 2021/06/23 00:56:41 mrg Exp $"); 30 31 #include <sys/types.h> 32 #include <sys/malloc.h> 33 #include <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/systm.h> 36 #include <sys/disklabel.h> 37 #include <sys/proc.h> 38 #include <sys/buf.h> 39 40 #include <dev/ata/atareg.h> 41 #include <dev/ata/satavar.h> 42 #include <dev/ata/satareg.h> 43 #include <dev/ata/satafisvar.h> 44 #include <dev/ata/satafisreg.h> 45 #include <dev/ata/satapmpreg.h> 46 #include <dev/ic/ahcisatavar.h> 47 #include <dev/ic/wdcreg.h> 48 49 #include <dev/scsipi/scsi_all.h> /* for SCSI status */ 50 51 #include "atapibus.h" 52 53 #ifdef AHCI_DEBUG 54 int ahcidebug_mask = 0; 55 #endif 56 57 static void ahci_probe_drive(struct ata_channel *); 58 static void ahci_setup_channel(struct ata_channel *); 59 60 static void ahci_ata_bio(struct ata_drive_datas *, struct ata_xfer *); 61 static int ahci_do_reset_drive(struct ata_channel *, int, int, uint32_t *, 62 uint8_t); 63 static void ahci_reset_drive(struct ata_drive_datas *, int, uint32_t *); 64 static void ahci_reset_channel(struct ata_channel *, int); 65 static void ahci_exec_command(struct ata_drive_datas *, struct ata_xfer *); 66 static int ahci_ata_addref(struct ata_drive_datas *); 67 static void ahci_ata_delref(struct ata_drive_datas *); 68 static void ahci_killpending(struct ata_drive_datas *); 69 70 static int ahci_cmd_start(struct ata_channel *, struct ata_xfer *); 71 static int ahci_cmd_complete(struct ata_channel *, struct ata_xfer *, int); 72 static void ahci_cmd_poll(struct ata_channel *, struct ata_xfer *); 73 static void ahci_cmd_abort(struct ata_channel *, struct ata_xfer *); 74 static void ahci_cmd_done(struct ata_channel *, struct ata_xfer *); 75 static void ahci_cmd_done_end(struct ata_channel *, struct ata_xfer *); 76 static void ahci_cmd_kill_xfer(struct ata_channel *, struct ata_xfer *, int); 77 static int ahci_bio_start(struct ata_channel *, struct ata_xfer *); 78 static void ahci_bio_poll(struct ata_channel *, struct ata_xfer *); 79 static void ahci_bio_abort(struct ata_channel *, struct ata_xfer *); 80 static int ahci_bio_complete(struct ata_channel *, struct ata_xfer *, int); 81 static void ahci_bio_kill_xfer(struct ata_channel *, struct ata_xfer *, int) ; 82 static void ahci_channel_stop(struct ahci_softc *, struct ata_channel *, int); 83 static void ahci_channel_start(struct ahci_softc *, struct ata_channel *, 84 int, int); 85 static void ahci_channel_recover(struct ata_channel *, int, uint32_t); 86 static int ahci_dma_setup(struct ata_channel *, int, void *, size_t, int); 87 static int ahci_intr_port_common(struct ata_channel *); 88 89 #if NATAPIBUS > 0 90 static void ahci_atapibus_attach(struct atabus_softc *); 91 static void ahci_atapi_kill_pending(struct scsipi_periph *); 92 static void ahci_atapi_minphys(struct buf *); 93 static void ahci_atapi_scsipi_request(struct scsipi_channel *, 94 scsipi_adapter_req_t, void *); 95 static int ahci_atapi_start(struct ata_channel *, struct ata_xfer *); 96 static void ahci_atapi_poll(struct ata_channel *, struct ata_xfer *); 97 static void ahci_atapi_abort(struct ata_channel *, struct ata_xfer *); 98 static int ahci_atapi_complete(struct ata_channel *, struct ata_xfer *, int); 99 static void ahci_atapi_kill_xfer(struct ata_channel *, struct ata_xfer *, int); 100 static void ahci_atapi_probe_device(struct atapibus_softc *, int); 101 102 static const struct scsipi_bustype ahci_atapi_bustype = { 103 .bustype_type = SCSIPI_BUSTYPE_ATAPI, 104 .bustype_cmd = atapi_scsipi_cmd, 105 .bustype_interpret_sense = atapi_interpret_sense, 106 .bustype_printaddr = atapi_print_addr, 107 .bustype_kill_pending = ahci_atapi_kill_pending, 108 .bustype_async_event_xfer_mode = NULL, 109 }; 110 #endif /* NATAPIBUS */ 111 112 #define ATA_DELAY 10000 /* 10s for a drive I/O */ 113 #define ATA_RESET_DELAY 31000 /* 31s for a drive reset */ 114 #define AHCI_RST_WAIT (ATA_RESET_DELAY / 10) 115 116 const struct ata_bustype ahci_ata_bustype = { 117 .bustype_type = SCSIPI_BUSTYPE_ATA, 118 .ata_bio = ahci_ata_bio, 119 .ata_reset_drive = ahci_reset_drive, 120 .ata_reset_channel = ahci_reset_channel, 121 .ata_exec_command = ahci_exec_command, 122 .ata_get_params = ata_get_params, 123 .ata_addref = ahci_ata_addref, 124 .ata_delref = ahci_ata_delref, 125 .ata_killpending = ahci_killpending, 126 .ata_recovery = ahci_channel_recover, 127 }; 128 129 static void ahci_setup_port(struct ahci_softc *sc, int i); 130 131 static void 132 ahci_enable(struct ahci_softc *sc) 133 { 134 uint32_t ghc; 135 136 ghc = AHCI_READ(sc, AHCI_GHC); 137 if (!(ghc & AHCI_GHC_AE)) { 138 ghc |= AHCI_GHC_AE; 139 AHCI_WRITE(sc, AHCI_GHC, ghc); 140 } 141 } 142 143 static int 144 ahci_reset(struct ahci_softc *sc) 145 { 146 int i; 147 uint32_t timeout_ms = 1000; /* default to 1s timeout */ 148 prop_dictionary_t dict; 149 150 /* reset controller */ 151 AHCI_WRITE(sc, AHCI_GHC, AHCI_GHC_HR); 152 153 /* some systems (rockchip rk3399) need extra reset time for ahcisata. */ 154 dict = device_properties(sc->sc_atac.atac_dev); 155 if (dict) 156 prop_dictionary_get_uint32(dict, "ahci-reset-ms", &timeout_ms); 157 158 /* wait for reset to complete */ 159 for (i = 0; i < timeout_ms; i++) { 160 delay(1000); 161 if ((AHCI_READ(sc, AHCI_GHC) & AHCI_GHC_HR) == 0) 162 break; 163 } 164 if ((AHCI_READ(sc, AHCI_GHC) & AHCI_GHC_HR) != 0) { 165 aprint_error_dev(sc->sc_atac.atac_dev, "reset failed\n"); 166 return -1; 167 } 168 if (i > 1000) { 169 aprint_normal_dev(sc->sc_atac.atac_dev, 170 "reset took %d milliseconds\n", i); 171 } 172 /* enable ahci mode */ 173 ahci_enable(sc); 174 175 if (sc->sc_save_init_data) { 176 AHCI_WRITE(sc, AHCI_CAP, sc->sc_init_data.cap); 177 if (sc->sc_init_data.cap2) 178 AHCI_WRITE(sc, AHCI_CAP2, sc->sc_init_data.cap2); 179 AHCI_WRITE(sc, AHCI_PI, sc->sc_init_data.ports); 180 } 181 182 /* Check if hardware reverted to single message MSI */ 183 sc->sc_ghc_mrsm = ISSET(AHCI_READ(sc, AHCI_GHC), AHCI_GHC_MRSM); 184 185 return 0; 186 } 187 188 static void 189 ahci_setup_ports(struct ahci_softc *sc) 190 { 191 int i, port; 192 193 for (i = 0, port = 0; i < AHCI_MAX_PORTS; i++) { 194 if ((sc->sc_ahci_ports & (1U << i)) == 0) 195 continue; 196 if (port >= sc->sc_atac.atac_nchannels) { 197 aprint_error("%s: more ports than announced\n", 198 AHCINAME(sc)); 199 break; 200 } 201 ahci_setup_port(sc, i); 202 port++; 203 } 204 } 205 206 static void 207 ahci_reprobe_drives(struct ahci_softc *sc) 208 { 209 int i, port; 210 struct ahci_channel *achp; 211 struct ata_channel *chp; 212 213 for (i = 0, port = 0; i < AHCI_MAX_PORTS; i++) { 214 if ((sc->sc_ahci_ports & (1U << i)) == 0) 215 continue; 216 if (port >= sc->sc_atac.atac_nchannels) { 217 aprint_error("%s: more ports than announced\n", 218 AHCINAME(sc)); 219 break; 220 } 221 achp = &sc->sc_channels[i]; 222 chp = &achp->ata_channel; 223 224 ahci_probe_drive(chp); 225 port++; 226 } 227 } 228 229 static void 230 ahci_setup_port(struct ahci_softc *sc, int i) 231 { 232 struct ahci_channel *achp; 233 234 achp = &sc->sc_channels[i]; 235 236 AHCI_WRITE(sc, AHCI_P_CLB(i), BUS_ADDR_LO32(achp->ahcic_bus_cmdh)); 237 AHCI_WRITE(sc, AHCI_P_CLBU(i), BUS_ADDR_HI32(achp->ahcic_bus_cmdh)); 238 AHCI_WRITE(sc, AHCI_P_FB(i), BUS_ADDR_LO32(achp->ahcic_bus_rfis)); 239 AHCI_WRITE(sc, AHCI_P_FBU(i), BUS_ADDR_HI32(achp->ahcic_bus_rfis)); 240 } 241 242 static void 243 ahci_enable_intrs(struct ahci_softc *sc) 244 { 245 246 /* clear interrupts */ 247 AHCI_WRITE(sc, AHCI_IS, AHCI_READ(sc, AHCI_IS)); 248 /* enable interrupts */ 249 AHCI_WRITE(sc, AHCI_GHC, AHCI_READ(sc, AHCI_GHC) | AHCI_GHC_IE); 250 } 251 252 void 253 ahci_attach(struct ahci_softc *sc) 254 { 255 uint32_t ahci_rev; 256 int i, j, port; 257 struct ahci_channel *achp; 258 struct ata_channel *chp; 259 int error; 260 int dmasize; 261 char buf[128]; 262 void *cmdhp; 263 void *cmdtblp; 264 265 if (sc->sc_save_init_data) { 266 ahci_enable(sc); 267 268 sc->sc_init_data.cap = AHCI_READ(sc, AHCI_CAP); 269 sc->sc_init_data.ports = AHCI_READ(sc, AHCI_PI); 270 271 ahci_rev = AHCI_READ(sc, AHCI_VS); 272 if (AHCI_VS_MJR(ahci_rev) > 1 || 273 (AHCI_VS_MJR(ahci_rev) == 1 && AHCI_VS_MNR(ahci_rev) >= 20)) { 274 sc->sc_init_data.cap2 = AHCI_READ(sc, AHCI_CAP2); 275 } else { 276 sc->sc_init_data.cap2 = 0; 277 } 278 if (sc->sc_init_data.ports == 0) { 279 sc->sc_init_data.ports = sc->sc_ahci_ports; 280 } 281 } 282 283 if (ahci_reset(sc) != 0) 284 return; 285 286 sc->sc_ahci_cap = AHCI_READ(sc, AHCI_CAP); 287 if (sc->sc_ahci_quirks & AHCI_QUIRK_BADPMP) { 288 aprint_verbose_dev(sc->sc_atac.atac_dev, 289 "ignoring broken port multiplier support\n"); 290 sc->sc_ahci_cap &= ~AHCI_CAP_SPM; 291 } 292 if (sc->sc_ahci_quirks & AHCI_QUIRK_BADNCQ) { 293 aprint_verbose_dev(sc->sc_atac.atac_dev, 294 "ignoring broken NCQ support\n"); 295 sc->sc_ahci_cap &= ~AHCI_CAP_NCQ; 296 } 297 sc->sc_atac.atac_nchannels = (sc->sc_ahci_cap & AHCI_CAP_NPMASK) + 1; 298 sc->sc_ncmds = ((sc->sc_ahci_cap & AHCI_CAP_NCS) >> 8) + 1; 299 ahci_rev = AHCI_READ(sc, AHCI_VS); 300 snprintb(buf, sizeof(buf), "\177\020" 301 /* "f\000\005NP\0" */ 302 "b\005SXS\0" 303 "b\006EMS\0" 304 "b\007CCCS\0" 305 /* "f\010\005NCS\0" */ 306 "b\015PSC\0" 307 "b\016SSC\0" 308 "b\017PMD\0" 309 "b\020FBSS\0" 310 "b\021SPM\0" 311 "b\022SAM\0" 312 "b\023SNZO\0" 313 "f\024\003ISS\0" 314 "=\001Gen1\0" 315 "=\002Gen2\0" 316 "=\003Gen3\0" 317 "b\030SCLO\0" 318 "b\031SAL\0" 319 "b\032SALP\0" 320 "b\033SSS\0" 321 "b\034SMPS\0" 322 "b\035SSNTF\0" 323 "b\036SNCQ\0" 324 "b\037S64A\0" 325 "\0", sc->sc_ahci_cap); 326 aprint_normal_dev(sc->sc_atac.atac_dev, "AHCI revision %u.%u" 327 ", %d port%s, %d slot%s, CAP %s\n", 328 AHCI_VS_MJR(ahci_rev), AHCI_VS_MNR(ahci_rev), 329 sc->sc_atac.atac_nchannels, 330 (sc->sc_atac.atac_nchannels == 1 ? "" : "s"), 331 sc->sc_ncmds, (sc->sc_ncmds == 1 ? "" : "s"), buf); 332 333 sc->sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DMA | ATAC_CAP_UDMA 334 | ((sc->sc_ahci_cap & AHCI_CAP_NCQ) ? ATAC_CAP_NCQ : 0); 335 sc->sc_atac.atac_cap |= sc->sc_atac_capflags; 336 sc->sc_atac.atac_pio_cap = 4; 337 sc->sc_atac.atac_dma_cap = 2; 338 sc->sc_atac.atac_udma_cap = 6; 339 sc->sc_atac.atac_channels = sc->sc_chanarray; 340 sc->sc_atac.atac_probe = ahci_probe_drive; 341 sc->sc_atac.atac_bustype_ata = &ahci_ata_bustype; 342 sc->sc_atac.atac_set_modes = ahci_setup_channel; 343 #if NATAPIBUS > 0 344 sc->sc_atac.atac_atapibus_attach = ahci_atapibus_attach; 345 #endif 346 347 dmasize = 348 (AHCI_RFIS_SIZE + AHCI_CMDH_SIZE) * sc->sc_atac.atac_nchannels; 349 error = bus_dmamem_alloc(sc->sc_dmat, dmasize, PAGE_SIZE, 0, 350 &sc->sc_cmd_hdr_seg, 1, &sc->sc_cmd_hdr_nseg, BUS_DMA_NOWAIT); 351 if (error) { 352 aprint_error("%s: unable to allocate command header memory" 353 ", error=%d\n", AHCINAME(sc), error); 354 return; 355 } 356 error = bus_dmamem_map(sc->sc_dmat, &sc->sc_cmd_hdr_seg, 357 sc->sc_cmd_hdr_nseg, dmasize, 358 &cmdhp, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 359 if (error) { 360 aprint_error("%s: unable to map command header memory" 361 ", error=%d\n", AHCINAME(sc), error); 362 return; 363 } 364 error = bus_dmamap_create(sc->sc_dmat, dmasize, 1, dmasize, 0, 365 BUS_DMA_NOWAIT, &sc->sc_cmd_hdrd); 366 if (error) { 367 aprint_error("%s: unable to create command header map" 368 ", error=%d\n", AHCINAME(sc), error); 369 return; 370 } 371 error = bus_dmamap_load(sc->sc_dmat, sc->sc_cmd_hdrd, 372 cmdhp, dmasize, NULL, BUS_DMA_NOWAIT); 373 if (error) { 374 aprint_error("%s: unable to load command header map" 375 ", error=%d\n", AHCINAME(sc), error); 376 return; 377 } 378 sc->sc_cmd_hdr = cmdhp; 379 memset(cmdhp, 0, dmasize); 380 bus_dmamap_sync(sc->sc_dmat, sc->sc_cmd_hdrd, 0, dmasize, 381 BUS_DMASYNC_PREWRITE); 382 383 ahci_enable_intrs(sc); 384 385 if (sc->sc_ahci_ports == 0) { 386 sc->sc_ahci_ports = AHCI_READ(sc, AHCI_PI); 387 AHCIDEBUG_PRINT(("active ports %#x\n", sc->sc_ahci_ports), 388 DEBUG_PROBE); 389 } 390 for (i = 0, port = 0; i < AHCI_MAX_PORTS; i++) { 391 if ((sc->sc_ahci_ports & (1U << i)) == 0) 392 continue; 393 if (port >= sc->sc_atac.atac_nchannels) { 394 aprint_error("%s: more ports than announced\n", 395 AHCINAME(sc)); 396 break; 397 } 398 399 /* Optional intr establish per active port */ 400 if (sc->sc_intr_establish && sc->sc_intr_establish(sc, i) != 0){ 401 aprint_error("%s: intr establish hook failed\n", 402 AHCINAME(sc)); 403 break; 404 } 405 406 achp = &sc->sc_channels[i]; 407 chp = &achp->ata_channel; 408 sc->sc_chanarray[i] = chp; 409 chp->ch_channel = i; 410 chp->ch_atac = &sc->sc_atac; 411 chp->ch_queue = ata_queue_alloc(sc->sc_ncmds); 412 if (chp->ch_queue == NULL) { 413 aprint_error("%s port %d: can't allocate memory for " 414 "command queue", AHCINAME(sc), i); 415 break; 416 } 417 dmasize = AHCI_CMDTBL_SIZE * sc->sc_ncmds; 418 error = bus_dmamem_alloc(sc->sc_dmat, dmasize, PAGE_SIZE, 0, 419 &achp->ahcic_cmd_tbl_seg, 1, &achp->ahcic_cmd_tbl_nseg, 420 BUS_DMA_NOWAIT); 421 if (error) { 422 aprint_error("%s: unable to allocate command table " 423 "memory, error=%d\n", AHCINAME(sc), error); 424 break; 425 } 426 error = bus_dmamem_map(sc->sc_dmat, &achp->ahcic_cmd_tbl_seg, 427 achp->ahcic_cmd_tbl_nseg, dmasize, 428 &cmdtblp, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 429 if (error) { 430 aprint_error("%s: unable to map command table memory" 431 ", error=%d\n", AHCINAME(sc), error); 432 break; 433 } 434 error = bus_dmamap_create(sc->sc_dmat, dmasize, 1, dmasize, 0, 435 BUS_DMA_NOWAIT, &achp->ahcic_cmd_tbld); 436 if (error) { 437 aprint_error("%s: unable to create command table map" 438 ", error=%d\n", AHCINAME(sc), error); 439 break; 440 } 441 error = bus_dmamap_load(sc->sc_dmat, achp->ahcic_cmd_tbld, 442 cmdtblp, dmasize, NULL, BUS_DMA_NOWAIT); 443 if (error) { 444 aprint_error("%s: unable to load command table map" 445 ", error=%d\n", AHCINAME(sc), error); 446 break; 447 } 448 memset(cmdtblp, 0, dmasize); 449 bus_dmamap_sync(sc->sc_dmat, achp->ahcic_cmd_tbld, 0, 450 dmasize, BUS_DMASYNC_PREWRITE); 451 achp->ahcic_cmdh = (struct ahci_cmd_header *) 452 ((char *)cmdhp + AHCI_CMDH_SIZE * port); 453 achp->ahcic_bus_cmdh = sc->sc_cmd_hdrd->dm_segs[0].ds_addr + 454 AHCI_CMDH_SIZE * port; 455 achp->ahcic_rfis = (struct ahci_r_fis *) 456 ((char *)cmdhp + 457 AHCI_CMDH_SIZE * sc->sc_atac.atac_nchannels + 458 AHCI_RFIS_SIZE * port); 459 achp->ahcic_bus_rfis = sc->sc_cmd_hdrd->dm_segs[0].ds_addr + 460 AHCI_CMDH_SIZE * sc->sc_atac.atac_nchannels + 461 AHCI_RFIS_SIZE * port; 462 AHCIDEBUG_PRINT(("port %d cmdh %p (0x%" PRIx64 ") " 463 "rfis %p (0x%" PRIx64 ")\n", i, 464 achp->ahcic_cmdh, (uint64_t)achp->ahcic_bus_cmdh, 465 achp->ahcic_rfis, (uint64_t)achp->ahcic_bus_rfis), 466 DEBUG_PROBE); 467 468 for (j = 0; j < sc->sc_ncmds; j++) { 469 achp->ahcic_cmd_tbl[j] = (struct ahci_cmd_tbl *) 470 ((char *)cmdtblp + AHCI_CMDTBL_SIZE * j); 471 achp->ahcic_bus_cmd_tbl[j] = 472 achp->ahcic_cmd_tbld->dm_segs[0].ds_addr + 473 AHCI_CMDTBL_SIZE * j; 474 achp->ahcic_cmdh[j].cmdh_cmdtba = 475 htole64(achp->ahcic_bus_cmd_tbl[j]); 476 AHCIDEBUG_PRINT(("port %d/%d tbl %p (0x%" PRIx64 ")\n", i, j, 477 achp->ahcic_cmd_tbl[j], 478 (uint64_t)achp->ahcic_bus_cmd_tbl[j]), DEBUG_PROBE); 479 /* The xfer DMA map */ 480 error = bus_dmamap_create(sc->sc_dmat, MAXPHYS, 481 AHCI_NPRD, 0x400000 /* 4MB */, 0, 482 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 483 &achp->ahcic_datad[j]); 484 if (error) { 485 aprint_error("%s: couldn't alloc xfer DMA map, " 486 "error=%d\n", AHCINAME(sc), error); 487 goto end; 488 } 489 } 490 ahci_setup_port(sc, i); 491 if (bus_space_subregion(sc->sc_ahcit, sc->sc_ahcih, 492 AHCI_P_SSTS(i), 4, &achp->ahcic_sstatus) != 0) { 493 aprint_error("%s: couldn't map port %d " 494 "sata_status regs\n", AHCINAME(sc), i); 495 break; 496 } 497 if (bus_space_subregion(sc->sc_ahcit, sc->sc_ahcih, 498 AHCI_P_SCTL(i), 4, &achp->ahcic_scontrol) != 0) { 499 aprint_error("%s: couldn't map port %d " 500 "sata_control regs\n", AHCINAME(sc), i); 501 break; 502 } 503 if (bus_space_subregion(sc->sc_ahcit, sc->sc_ahcih, 504 AHCI_P_SERR(i), 4, &achp->ahcic_serror) != 0) { 505 aprint_error("%s: couldn't map port %d " 506 "sata_error regs\n", AHCINAME(sc), i); 507 break; 508 } 509 ata_channel_attach(chp); 510 port++; 511 end: 512 continue; 513 } 514 } 515 516 void 517 ahci_childdetached(struct ahci_softc *sc, device_t child) 518 { 519 struct ahci_channel *achp; 520 struct ata_channel *chp; 521 522 for (int i = 0; i < AHCI_MAX_PORTS; i++) { 523 achp = &sc->sc_channels[i]; 524 chp = &achp->ata_channel; 525 526 if ((sc->sc_ahci_ports & (1U << i)) == 0) 527 continue; 528 529 if (child == chp->atabus) 530 chp->atabus = NULL; 531 } 532 } 533 534 int 535 ahci_detach(struct ahci_softc *sc, int flags) 536 { 537 struct atac_softc *atac; 538 struct ahci_channel *achp; 539 struct ata_channel *chp; 540 struct scsipi_adapter *adapt; 541 int i, j, port; 542 int error; 543 544 atac = &sc->sc_atac; 545 adapt = &atac->atac_atapi_adapter._generic; 546 547 for (i = 0, port = 0; i < AHCI_MAX_PORTS; i++) { 548 achp = &sc->sc_channels[i]; 549 chp = &achp->ata_channel; 550 551 if ((sc->sc_ahci_ports & (1U << i)) == 0) 552 continue; 553 if (port >= sc->sc_atac.atac_nchannels) { 554 aprint_error("%s: more ports than announced\n", 555 AHCINAME(sc)); 556 break; 557 } 558 559 if (chp->atabus != NULL) { 560 if ((error = config_detach(chp->atabus, flags)) != 0) 561 return error; 562 563 KASSERT(chp->atabus == NULL); 564 } 565 566 if (chp->ch_flags & ATACH_DETACHED) 567 continue; 568 569 for (j = 0; j < sc->sc_ncmds; j++) 570 bus_dmamap_destroy(sc->sc_dmat, achp->ahcic_datad[j]); 571 572 bus_dmamap_unload(sc->sc_dmat, achp->ahcic_cmd_tbld); 573 bus_dmamap_destroy(sc->sc_dmat, achp->ahcic_cmd_tbld); 574 bus_dmamem_unmap(sc->sc_dmat, achp->ahcic_cmd_tbl[0], 575 AHCI_CMDTBL_SIZE * sc->sc_ncmds); 576 bus_dmamem_free(sc->sc_dmat, &achp->ahcic_cmd_tbl_seg, 577 achp->ahcic_cmd_tbl_nseg); 578 579 ata_channel_detach(chp); 580 port++; 581 } 582 583 bus_dmamap_unload(sc->sc_dmat, sc->sc_cmd_hdrd); 584 bus_dmamap_destroy(sc->sc_dmat, sc->sc_cmd_hdrd); 585 bus_dmamem_unmap(sc->sc_dmat, sc->sc_cmd_hdr, 586 (AHCI_RFIS_SIZE + AHCI_CMDH_SIZE) * sc->sc_atac.atac_nchannels); 587 bus_dmamem_free(sc->sc_dmat, &sc->sc_cmd_hdr_seg, sc->sc_cmd_hdr_nseg); 588 589 if (adapt->adapt_refcnt != 0) 590 return EBUSY; 591 592 return 0; 593 } 594 595 void 596 ahci_resume(struct ahci_softc *sc) 597 { 598 ahci_reset(sc); 599 ahci_setup_ports(sc); 600 ahci_reprobe_drives(sc); 601 ahci_enable_intrs(sc); 602 } 603 604 int 605 ahci_intr(void *v) 606 { 607 struct ahci_softc *sc = v; 608 uint32_t is, ports; 609 int bit, r = 0; 610 611 while ((is = AHCI_READ(sc, AHCI_IS))) { 612 AHCIDEBUG_PRINT(("%s ahci_intr 0x%x\n", AHCINAME(sc), is), 613 DEBUG_INTR); 614 r = 1; 615 ports = is; 616 while ((bit = ffs(ports)) != 0) { 617 bit--; 618 ahci_intr_port_common(&sc->sc_channels[bit].ata_channel); 619 ports &= ~__BIT(bit); 620 } 621 AHCI_WRITE(sc, AHCI_IS, is); 622 } 623 624 return r; 625 } 626 627 int 628 ahci_intr_port(void *v) 629 { 630 struct ahci_channel *achp = v; 631 struct ata_channel *chp = &achp->ata_channel; 632 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 633 int ret; 634 635 ret = ahci_intr_port_common(chp); 636 if (ret) { 637 AHCI_WRITE(sc, AHCI_IS, 1U << chp->ch_channel); 638 } 639 640 return ret; 641 } 642 643 static int 644 ahci_intr_port_common(struct ata_channel *chp) 645 { 646 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 647 uint32_t is, tfd, sact; 648 struct ata_xfer *xfer; 649 int slot = -1; 650 bool recover = false; 651 uint32_t aslots; 652 653 is = AHCI_READ(sc, AHCI_P_IS(chp->ch_channel)); 654 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), is); 655 656 AHCIDEBUG_PRINT(("ahci_intr_port_common %s port %d " 657 "is 0x%x CI 0x%x SACT 0x%x TFD 0x%x\n", 658 AHCINAME(sc), 659 chp->ch_channel, is, 660 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel)), 661 AHCI_READ(sc, AHCI_P_SACT(chp->ch_channel)), 662 AHCI_READ(sc, AHCI_P_TFD(chp->ch_channel))), 663 DEBUG_INTR); 664 665 if ((chp->ch_flags & ATACH_NCQ) == 0) { 666 /* Non-NCQ operation */ 667 sact = AHCI_READ(sc, AHCI_P_CI(chp->ch_channel)); 668 } else { 669 /* NCQ operation */ 670 sact = AHCI_READ(sc, AHCI_P_SACT(chp->ch_channel)); 671 } 672 673 /* Handle errors */ 674 if (is & (AHCI_P_IX_TFES | AHCI_P_IX_HBFS | AHCI_P_IX_HBDS | 675 AHCI_P_IX_IFS | AHCI_P_IX_OFS | AHCI_P_IX_UFS)) { 676 /* Fatal errors */ 677 if (is & AHCI_P_IX_TFES) { 678 tfd = AHCI_READ(sc, AHCI_P_TFD(chp->ch_channel)); 679 680 if ((chp->ch_flags & ATACH_NCQ) == 0) { 681 /* Slot valid only for Non-NCQ operation */ 682 slot = (AHCI_READ(sc, 683 AHCI_P_CMD(chp->ch_channel)) 684 & AHCI_P_CMD_CCS_MASK) 685 >> AHCI_P_CMD_CCS_SHIFT; 686 } 687 688 AHCIDEBUG_PRINT(( 689 "%s port %d: TFE: sact 0x%x is 0x%x tfd 0x%x\n", 690 AHCINAME(sc), chp->ch_channel, sact, is, tfd), 691 DEBUG_INTR); 692 } else { 693 /* mark an error, and set BSY */ 694 tfd = (WDCE_ABRT << AHCI_P_TFD_ERR_SHIFT) | 695 WDCS_ERR | WDCS_BSY; 696 } 697 698 if (is & AHCI_P_IX_IFS) { 699 AHCIDEBUG_PRINT(("%s port %d: SERR 0x%x\n", 700 AHCINAME(sc), chp->ch_channel, 701 AHCI_READ(sc, AHCI_P_SERR(chp->ch_channel))), 702 DEBUG_INTR); 703 } 704 705 if (!ISSET(chp->ch_flags, ATACH_RECOVERING)) 706 recover = true; 707 } else if (is & (AHCI_P_IX_DHRS|AHCI_P_IX_SDBS)) { 708 tfd = AHCI_READ(sc, AHCI_P_TFD(chp->ch_channel)); 709 710 /* D2H Register FIS or Set Device Bits */ 711 if ((tfd & WDCS_ERR) != 0) { 712 if (!ISSET(chp->ch_flags, ATACH_RECOVERING)) 713 recover = true; 714 715 AHCIDEBUG_PRINT(("%s port %d: transfer aborted 0x%x\n", 716 AHCINAME(sc), chp->ch_channel, tfd), DEBUG_INTR); 717 } 718 } else { 719 tfd = 0; 720 } 721 722 if (__predict_false(recover)) 723 ata_channel_freeze(chp); 724 725 aslots = ata_queue_active(chp); 726 727 if (slot >= 0) { 728 if ((aslots & __BIT(slot)) != 0 && 729 (sact & __BIT(slot)) == 0) { 730 xfer = ata_queue_hwslot_to_xfer(chp, slot); 731 xfer->ops->c_intr(chp, xfer, tfd); 732 } 733 } else { 734 /* 735 * For NCQ, HBA halts processing when error is notified, 736 * and any further D2H FISes are ignored until the error 737 * condition is cleared. Hence if a command is inactive, 738 * it means it actually already finished successfully. 739 * Note: active slots can change as c_intr() callback 740 * can activate another command(s), so must only process 741 * commands active before we start processing. 742 */ 743 744 for (slot = 0; slot < sc->sc_ncmds; slot++) { 745 if ((aslots & __BIT(slot)) != 0 && 746 (sact & __BIT(slot)) == 0) { 747 xfer = ata_queue_hwslot_to_xfer(chp, slot); 748 xfer->ops->c_intr(chp, xfer, tfd); 749 } 750 } 751 } 752 753 if (__predict_false(recover)) { 754 ata_channel_lock(chp); 755 ata_channel_thaw_locked(chp); 756 ata_thread_run(chp, 0, ATACH_TH_RECOVERY, tfd); 757 ata_channel_unlock(chp); 758 } 759 760 return 1; 761 } 762 763 static void 764 ahci_reset_drive(struct ata_drive_datas *drvp, int flags, uint32_t *sigp) 765 { 766 struct ata_channel *chp = drvp->chnl_softc; 767 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 768 uint8_t c_slot; 769 770 ata_channel_lock_owned(chp); 771 772 /* get a slot for running the command on */ 773 if (!ata_queue_alloc_slot(chp, &c_slot, ATA_MAX_OPENINGS)) { 774 panic("%s: %s: failed to get xfer for reset, port %d\n", 775 device_xname(sc->sc_atac.atac_dev), 776 __func__, chp->ch_channel); 777 /* NOTREACHED */ 778 } 779 780 AHCI_WRITE(sc, AHCI_GHC, 781 AHCI_READ(sc, AHCI_GHC) & ~AHCI_GHC_IE); 782 ahci_channel_stop(sc, chp, flags); 783 ahci_do_reset_drive(chp, drvp->drive, flags, sigp, c_slot); 784 AHCI_WRITE(sc, AHCI_GHC, AHCI_READ(sc, AHCI_GHC) | AHCI_GHC_IE); 785 786 ata_queue_free_slot(chp, c_slot); 787 } 788 789 /* return error code from ata_bio */ 790 static int 791 ahci_exec_fis(struct ata_channel *chp, int timeout, int flags, int slot) 792 { 793 struct ahci_channel *achp = (struct ahci_channel *)chp; 794 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 795 int i; 796 uint32_t is; 797 798 /* 799 * Base timeout is specified in ms. Delay for 10ms 800 * on each round. 801 */ 802 timeout = timeout / 10; 803 804 AHCI_CMDTBL_SYNC(sc, achp, slot, BUS_DMASYNC_PREWRITE); 805 AHCI_CMDH_SYNC(sc, achp, slot, 806 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 807 /* start command */ 808 AHCI_WRITE(sc, AHCI_P_CI(chp->ch_channel), 1U << slot); 809 for (i = 0; i < timeout; i++) { 810 if ((AHCI_READ(sc, AHCI_P_CI(chp->ch_channel)) & (1U << slot)) == 811 0) 812 return 0; 813 is = AHCI_READ(sc, AHCI_P_IS(chp->ch_channel)); 814 if (is & (AHCI_P_IX_TFES | AHCI_P_IX_HBFS | AHCI_P_IX_HBDS | 815 AHCI_P_IX_IFS | 816 AHCI_P_IX_OFS | AHCI_P_IX_UFS)) { 817 if ((is & (AHCI_P_IX_DHRS|AHCI_P_IX_TFES)) == 818 (AHCI_P_IX_DHRS|AHCI_P_IX_TFES)) { 819 /* 820 * we got the D2H FIS anyway, 821 * assume sig is valid. 822 * channel is restarted later 823 */ 824 return ERROR; 825 } 826 aprint_debug("%s port %d: error 0x%x sending FIS\n", 827 AHCINAME(sc), chp->ch_channel, is); 828 return ERR_DF; 829 } 830 ata_delay(chp, 10, "ahcifis", flags); 831 } 832 833 aprint_debug("%s port %d: timeout sending FIS\n", 834 AHCINAME(sc), chp->ch_channel); 835 return TIMEOUT; 836 } 837 838 static int 839 ahci_do_reset_drive(struct ata_channel *chp, int drive, int flags, 840 uint32_t *sigp, uint8_t c_slot) 841 { 842 struct ahci_channel *achp = (struct ahci_channel *)chp; 843 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 844 struct ahci_cmd_tbl *cmd_tbl; 845 struct ahci_cmd_header *cmd_h; 846 int i, error = 0; 847 uint32_t sig, cmd; 848 int noclo_retry = 0, retry; 849 850 ata_channel_lock_owned(chp); 851 852 again: 853 /* clear port interrupt register */ 854 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), 0xffffffff); 855 /* clear SErrors and start operations */ 856 if ((sc->sc_ahci_cap & AHCI_CAP_CLO) == AHCI_CAP_CLO) { 857 /* 858 * issue a command list override to clear BSY. 859 * This is needed if there's a PMP with no drive 860 * on port 0 861 */ 862 ahci_channel_start(sc, chp, flags, 1); 863 } else { 864 /* Can't handle command still running without CLO */ 865 cmd = AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)); 866 if ((cmd & AHCI_P_CMD_CR) != 0) { 867 ahci_channel_stop(sc, chp, flags); 868 cmd = AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)); 869 if ((cmd & AHCI_P_CMD_CR) != 0) { 870 aprint_error("%s port %d: DMA engine busy " 871 "for drive %d\n", AHCINAME(sc), 872 chp->ch_channel, drive); 873 error = EBUSY; 874 goto end; 875 } 876 } 877 878 KASSERT((AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & AHCI_P_CMD_CR) == 0); 879 880 ahci_channel_start(sc, chp, flags, 0); 881 } 882 if (drive > 0) { 883 KASSERT(sc->sc_ahci_cap & AHCI_CAP_SPM); 884 } 885 886 /* polled command, assume interrupts are disabled */ 887 888 cmd_h = &achp->ahcic_cmdh[c_slot]; 889 cmd_tbl = achp->ahcic_cmd_tbl[c_slot]; 890 cmd_h->cmdh_flags = htole16(AHCI_CMDH_F_RST | AHCI_CMDH_F_CBSY | 891 RHD_FISLEN / 4 | (drive << AHCI_CMDH_F_PMP_SHIFT)); 892 cmd_h->cmdh_prdtl = 0; 893 cmd_h->cmdh_prdbc = 0; 894 memset(cmd_tbl->cmdt_cfis, 0, 64); 895 cmd_tbl->cmdt_cfis[fis_type] = RHD_FISTYPE; 896 cmd_tbl->cmdt_cfis[rhd_c] = drive; 897 cmd_tbl->cmdt_cfis[rhd_control] = WDCTL_RST | WDCTL_4BIT; 898 switch (ahci_exec_fis(chp, 100, flags, c_slot)) { 899 case ERR_DF: 900 case TIMEOUT: 901 /* 902 * without CLO we can't make sure a software reset will 903 * success, as the drive may still have BSY or DRQ set. 904 * in this case, reset the whole channel and retry the 905 * drive reset. The channel reset should clear BSY and DRQ 906 */ 907 if ((sc->sc_ahci_cap & AHCI_CAP_CLO) == 0 && noclo_retry == 0) { 908 noclo_retry++; 909 ahci_reset_channel(chp, flags); 910 goto again; 911 } 912 aprint_error("%s port %d: setting WDCTL_RST failed " 913 "for drive %d\n", AHCINAME(sc), chp->ch_channel, drive); 914 error = EBUSY; 915 goto end; 916 default: 917 break; 918 } 919 920 /* 921 * SATA specification has toggle period for SRST bit of 5 usec. Some 922 * controllers fail to process the SRST clear operation unless 923 * we wait for at least this period between the set and clear commands. 924 */ 925 ata_delay(chp, 10, "ahcirstw", flags); 926 927 /* 928 * Try to clear WDCTL_RST a few times before giving up. 929 */ 930 for (error = EBUSY, retry = 0; error != 0 && retry < 5; retry++) { 931 cmd_h->cmdh_flags = htole16(RHD_FISLEN / 4 | 932 (drive << AHCI_CMDH_F_PMP_SHIFT)); 933 cmd_h->cmdh_prdbc = 0; 934 memset(cmd_tbl->cmdt_cfis, 0, 64); 935 cmd_tbl->cmdt_cfis[fis_type] = RHD_FISTYPE; 936 cmd_tbl->cmdt_cfis[rhd_c] = drive; 937 cmd_tbl->cmdt_cfis[rhd_control] = WDCTL_4BIT; 938 switch (ahci_exec_fis(chp, 310, flags, c_slot)) { 939 case ERR_DF: 940 case TIMEOUT: 941 error = EBUSY; 942 break; 943 default: 944 error = 0; 945 break; 946 } 947 if (error == 0) { 948 break; 949 } 950 } 951 if (error == EBUSY) { 952 aprint_error("%s port %d: clearing WDCTL_RST failed " 953 "for drive %d\n", AHCINAME(sc), chp->ch_channel, drive); 954 goto end; 955 } 956 957 /* 958 * wait 31s for BSY to clear 959 * This should not be needed, but some controllers clear the 960 * command slot before receiving the D2H FIS ... 961 */ 962 for (i = 0; i < AHCI_RST_WAIT; i++) { 963 sig = AHCI_READ(sc, AHCI_P_TFD(chp->ch_channel)); 964 if ((__SHIFTOUT(sig, AHCI_P_TFD_ST) & WDCS_BSY) == 0) 965 break; 966 ata_delay(chp, 10, "ahcid2h", flags); 967 } 968 if (i == AHCI_RST_WAIT) { 969 aprint_error("%s: BSY never cleared, TD 0x%x\n", 970 AHCINAME(sc), sig); 971 goto end; 972 } 973 AHCIDEBUG_PRINT(("%s: BSY took %d ms\n", AHCINAME(sc), i * 10), 974 DEBUG_PROBE); 975 sig = AHCI_READ(sc, AHCI_P_SIG(chp->ch_channel)); 976 if (sigp) 977 *sigp = sig; 978 AHCIDEBUG_PRINT(("%s: port %d: sig=0x%x CMD=0x%x\n", 979 AHCINAME(sc), chp->ch_channel, sig, 980 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel))), DEBUG_PROBE); 981 end: 982 ahci_channel_stop(sc, chp, flags); 983 ata_delay(chp, 500, "ahcirst", flags); 984 /* clear port interrupt register */ 985 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), 0xffffffff); 986 ahci_channel_start(sc, chp, flags, 987 (sc->sc_ahci_cap & AHCI_CAP_CLO) ? 1 : 0); 988 return error; 989 } 990 991 static void 992 ahci_reset_channel(struct ata_channel *chp, int flags) 993 { 994 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 995 struct ahci_channel *achp = (struct ahci_channel *)chp; 996 int i, tfd; 997 998 ata_channel_lock_owned(chp); 999 1000 ahci_channel_stop(sc, chp, flags); 1001 if (sata_reset_interface(chp, sc->sc_ahcit, achp->ahcic_scontrol, 1002 achp->ahcic_sstatus, flags) != SStatus_DET_DEV) { 1003 printf("%s: port %d reset failed\n", AHCINAME(sc), chp->ch_channel); 1004 /* XXX and then ? */ 1005 } 1006 ata_kill_active(chp, KILL_RESET, flags); 1007 ata_delay(chp, 500, "ahcirst", flags); 1008 /* clear port interrupt register */ 1009 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), 0xffffffff); 1010 /* clear SErrors and start operations */ 1011 ahci_channel_start(sc, chp, flags, 1012 (sc->sc_ahci_cap & AHCI_CAP_CLO) ? 1 : 0); 1013 /* wait 31s for BSY to clear */ 1014 for (i = 0; i < AHCI_RST_WAIT; i++) { 1015 tfd = AHCI_READ(sc, AHCI_P_TFD(chp->ch_channel)); 1016 if ((AHCI_TFD_ST(tfd) & WDCS_BSY) == 0) 1017 break; 1018 ata_delay(chp, 10, "ahcid2h", flags); 1019 } 1020 if ((AHCI_TFD_ST(tfd) & WDCS_BSY) != 0) 1021 aprint_error("%s: BSY never cleared, TD 0x%x\n", 1022 AHCINAME(sc), tfd); 1023 AHCIDEBUG_PRINT(("%s: BSY took %d ms\n", AHCINAME(sc), i * 10), 1024 DEBUG_PROBE); 1025 /* clear port interrupt register */ 1026 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), 0xffffffff); 1027 1028 return; 1029 } 1030 1031 static int 1032 ahci_ata_addref(struct ata_drive_datas *drvp) 1033 { 1034 return 0; 1035 } 1036 1037 static void 1038 ahci_ata_delref(struct ata_drive_datas *drvp) 1039 { 1040 return; 1041 } 1042 1043 static void 1044 ahci_killpending(struct ata_drive_datas *drvp) 1045 { 1046 return; 1047 } 1048 1049 static void 1050 ahci_probe_drive(struct ata_channel *chp) 1051 { 1052 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1053 struct ahci_channel *achp = (struct ahci_channel *)chp; 1054 uint32_t sig; 1055 uint8_t c_slot; 1056 int error; 1057 1058 ata_channel_lock(chp); 1059 1060 /* get a slot for running the command on */ 1061 if (!ata_queue_alloc_slot(chp, &c_slot, ATA_MAX_OPENINGS)) { 1062 aprint_error_dev(sc->sc_atac.atac_dev, 1063 "%s: failed to get xfer port %d\n", 1064 __func__, chp->ch_channel); 1065 ata_channel_unlock(chp); 1066 return; 1067 } 1068 1069 /* bring interface up, accept FISs, power up and spin up device */ 1070 AHCI_WRITE(sc, AHCI_P_CMD(chp->ch_channel), 1071 AHCI_P_CMD_ICC_AC | AHCI_P_CMD_FRE | 1072 AHCI_P_CMD_POD | AHCI_P_CMD_SUD); 1073 /* reset the PHY and bring online */ 1074 switch (sata_reset_interface(chp, sc->sc_ahcit, achp->ahcic_scontrol, 1075 achp->ahcic_sstatus, AT_WAIT)) { 1076 case SStatus_DET_DEV: 1077 ata_delay(chp, 500, "ahcidv", AT_WAIT); 1078 1079 /* Initial value, used in case the soft reset fails */ 1080 sig = AHCI_READ(sc, AHCI_P_SIG(chp->ch_channel)); 1081 1082 if (sc->sc_ahci_cap & AHCI_CAP_SPM) { 1083 error = ahci_do_reset_drive(chp, PMP_PORT_CTL, AT_WAIT, 1084 &sig, c_slot); 1085 1086 /* If probe for PMP failed, just fallback to drive 0 */ 1087 if (error) { 1088 aprint_error("%s port %d: drive %d reset " 1089 "failed, disabling PMP\n", 1090 AHCINAME(sc), chp->ch_channel, 1091 PMP_PORT_CTL); 1092 1093 sc->sc_ahci_cap &= ~AHCI_CAP_SPM; 1094 ahci_reset_channel(chp, AT_WAIT); 1095 } 1096 } else { 1097 ahci_do_reset_drive(chp, 0, AT_WAIT, &sig, c_slot); 1098 } 1099 sata_interpret_sig(chp, 0, sig); 1100 /* if we have a PMP attached, inform the controller */ 1101 if (chp->ch_ndrives > PMP_PORT_CTL && 1102 chp->ch_drive[PMP_PORT_CTL].drive_type == ATA_DRIVET_PM) { 1103 AHCI_WRITE(sc, AHCI_P_CMD(chp->ch_channel), 1104 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) | 1105 AHCI_P_CMD_PMA); 1106 } 1107 /* clear port interrupt register */ 1108 AHCI_WRITE(sc, AHCI_P_IS(chp->ch_channel), 0xffffffff); 1109 1110 /* and enable interrupts */ 1111 AHCI_WRITE(sc, AHCI_P_IE(chp->ch_channel), 1112 AHCI_P_IX_TFES | AHCI_P_IX_HBFS | AHCI_P_IX_HBDS | 1113 AHCI_P_IX_IFS | 1114 AHCI_P_IX_OFS | AHCI_P_IX_DPS | AHCI_P_IX_UFS | 1115 AHCI_P_IX_PSS | AHCI_P_IX_DHRS | AHCI_P_IX_SDBS); 1116 /* wait 500ms before actually starting operations */ 1117 ata_delay(chp, 500, "ahciprb", AT_WAIT); 1118 break; 1119 1120 default: 1121 break; 1122 } 1123 1124 ata_queue_free_slot(chp, c_slot); 1125 1126 ata_channel_unlock(chp); 1127 } 1128 1129 static void 1130 ahci_setup_channel(struct ata_channel *chp) 1131 { 1132 return; 1133 } 1134 1135 static const struct ata_xfer_ops ahci_cmd_xfer_ops = { 1136 .c_start = ahci_cmd_start, 1137 .c_poll = ahci_cmd_poll, 1138 .c_abort = ahci_cmd_abort, 1139 .c_intr = ahci_cmd_complete, 1140 .c_kill_xfer = ahci_cmd_kill_xfer, 1141 }; 1142 1143 static void 1144 ahci_exec_command(struct ata_drive_datas *drvp, struct ata_xfer *xfer) 1145 { 1146 struct ata_channel *chp = drvp->chnl_softc; 1147 struct ata_command *ata_c = &xfer->c_ata_c; 1148 1149 AHCIDEBUG_PRINT(("ahci_exec_command port %d CI 0x%x\n", 1150 chp->ch_channel, 1151 AHCI_READ(AHCI_CH2SC(chp), AHCI_P_CI(chp->ch_channel))), 1152 DEBUG_XFERS); 1153 if (ata_c->flags & AT_POLL) 1154 xfer->c_flags |= C_POLL; 1155 if (ata_c->flags & AT_WAIT) 1156 xfer->c_flags |= C_WAIT; 1157 xfer->c_drive = drvp->drive; 1158 xfer->c_databuf = ata_c->data; 1159 xfer->c_bcount = ata_c->bcount; 1160 xfer->ops = &ahci_cmd_xfer_ops; 1161 1162 ata_exec_xfer(chp, xfer); 1163 } 1164 1165 static int 1166 ahci_cmd_start(struct ata_channel *chp, struct ata_xfer *xfer) 1167 { 1168 struct ahci_softc *sc = AHCI_CH2SC(chp); 1169 struct ahci_channel *achp = (struct ahci_channel *)chp; 1170 struct ata_command *ata_c = &xfer->c_ata_c; 1171 int slot = xfer->c_slot; 1172 struct ahci_cmd_tbl *cmd_tbl; 1173 struct ahci_cmd_header *cmd_h; 1174 1175 AHCIDEBUG_PRINT(("ahci_cmd_start CI 0x%x timo %d\n slot %d", 1176 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel)), 1177 ata_c->timeout, slot), 1178 DEBUG_XFERS); 1179 1180 ata_channel_lock_owned(chp); 1181 1182 cmd_tbl = achp->ahcic_cmd_tbl[slot]; 1183 AHCIDEBUG_PRINT(("%s port %d tbl %p\n", AHCINAME(sc), chp->ch_channel, 1184 cmd_tbl), DEBUG_XFERS); 1185 1186 satafis_rhd_construct_cmd(ata_c, cmd_tbl->cmdt_cfis); 1187 cmd_tbl->cmdt_cfis[rhd_c] |= xfer->c_drive; 1188 1189 cmd_h = &achp->ahcic_cmdh[slot]; 1190 AHCIDEBUG_PRINT(("%s port %d header %p\n", AHCINAME(sc), 1191 chp->ch_channel, cmd_h), DEBUG_XFERS); 1192 if (ahci_dma_setup(chp, slot, 1193 (ata_c->flags & (AT_READ|AT_WRITE) && ata_c->bcount > 0) ? 1194 ata_c->data : NULL, 1195 ata_c->bcount, 1196 (ata_c->flags & AT_READ) ? BUS_DMA_READ : BUS_DMA_WRITE)) { 1197 ata_c->flags |= AT_DF; 1198 return ATASTART_ABORT; 1199 } 1200 cmd_h->cmdh_flags = htole16( 1201 ((ata_c->flags & AT_WRITE) ? AHCI_CMDH_F_WR : 0) | 1202 RHD_FISLEN / 4 | (xfer->c_drive << AHCI_CMDH_F_PMP_SHIFT)); 1203 cmd_h->cmdh_prdbc = 0; 1204 AHCI_CMDH_SYNC(sc, achp, slot, 1205 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1206 1207 if (ata_c->flags & AT_POLL) { 1208 /* polled command, disable interrupts */ 1209 AHCI_WRITE(sc, AHCI_GHC, 1210 AHCI_READ(sc, AHCI_GHC) & ~AHCI_GHC_IE); 1211 } 1212 /* start command */ 1213 AHCI_WRITE(sc, AHCI_P_CI(chp->ch_channel), 1U << slot); 1214 1215 if ((ata_c->flags & AT_POLL) == 0) { 1216 callout_reset(&chp->c_timo_callout, mstohz(ata_c->timeout), 1217 ata_timeout, chp); 1218 return ATASTART_STARTED; 1219 } else 1220 return ATASTART_POLL; 1221 } 1222 1223 static void 1224 ahci_cmd_poll(struct ata_channel *chp, struct ata_xfer *xfer) 1225 { 1226 struct ahci_softc *sc = AHCI_CH2SC(chp); 1227 struct ahci_channel *achp = (struct ahci_channel *)chp; 1228 1229 ata_channel_lock(chp); 1230 1231 /* 1232 * Polled command. 1233 */ 1234 for (int i = 0; i < xfer->c_ata_c.timeout / 10; i++) { 1235 if (xfer->c_ata_c.flags & AT_DONE) 1236 break; 1237 ata_channel_unlock(chp); 1238 ahci_intr_port(achp); 1239 ata_channel_lock(chp); 1240 ata_delay(chp, 10, "ahcipl", xfer->c_ata_c.flags); 1241 } 1242 AHCIDEBUG_PRINT(("%s port %d poll end GHC 0x%x IS 0x%x list 0x%x%x fis 0x%x%x CMD 0x%x CI 0x%x\n", AHCINAME(sc), chp->ch_channel, 1243 AHCI_READ(sc, AHCI_GHC), AHCI_READ(sc, AHCI_IS), 1244 AHCI_READ(sc, AHCI_P_CLBU(chp->ch_channel)), 1245 AHCI_READ(sc, AHCI_P_CLB(chp->ch_channel)), 1246 AHCI_READ(sc, AHCI_P_FBU(chp->ch_channel)), 1247 AHCI_READ(sc, AHCI_P_FB(chp->ch_channel)), 1248 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)), 1249 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel))), 1250 DEBUG_XFERS); 1251 1252 ata_channel_unlock(chp); 1253 1254 if ((xfer->c_ata_c.flags & AT_DONE) == 0) { 1255 xfer->c_ata_c.flags |= AT_TIMEOU; 1256 xfer->ops->c_intr(chp, xfer, 0); 1257 } 1258 /* reenable interrupts */ 1259 AHCI_WRITE(sc, AHCI_GHC, AHCI_READ(sc, AHCI_GHC) | AHCI_GHC_IE); 1260 } 1261 1262 static void 1263 ahci_cmd_abort(struct ata_channel *chp, struct ata_xfer *xfer) 1264 { 1265 ahci_cmd_complete(chp, xfer, 0); 1266 } 1267 1268 static void 1269 ahci_cmd_kill_xfer(struct ata_channel *chp, struct ata_xfer *xfer, int reason) 1270 { 1271 struct ata_command *ata_c = &xfer->c_ata_c; 1272 bool deactivate = true; 1273 1274 AHCIDEBUG_PRINT(("ahci_cmd_kill_xfer port %d\n", chp->ch_channel), 1275 DEBUG_FUNCS); 1276 1277 switch (reason) { 1278 case KILL_GONE_INACTIVE: 1279 deactivate = false; 1280 /* FALLTHROUGH */ 1281 case KILL_GONE: 1282 ata_c->flags |= AT_GONE; 1283 break; 1284 case KILL_RESET: 1285 ata_c->flags |= AT_RESET; 1286 break; 1287 case KILL_REQUEUE: 1288 panic("%s: not supposed to be requeued\n", __func__); 1289 break; 1290 default: 1291 printf("ahci_cmd_kill_xfer: unknown reason %d\n", reason); 1292 panic("ahci_cmd_kill_xfer"); 1293 } 1294 1295 ahci_cmd_done_end(chp, xfer); 1296 1297 if (deactivate) 1298 ata_deactivate_xfer(chp, xfer); 1299 } 1300 1301 static int 1302 ahci_cmd_complete(struct ata_channel *chp, struct ata_xfer *xfer, int tfd) 1303 { 1304 struct ata_command *ata_c = &xfer->c_ata_c; 1305 struct ahci_channel *achp = (struct ahci_channel *)chp; 1306 struct ahci_softc *sc = AHCI_CH2SC(chp); 1307 1308 AHCIDEBUG_PRINT(("ahci_cmd_complete port %d CMD 0x%x CI 0x%x\n", 1309 chp->ch_channel, 1310 AHCI_READ(AHCI_CH2SC(chp), AHCI_P_CMD(chp->ch_channel)), 1311 AHCI_READ(AHCI_CH2SC(chp), AHCI_P_CI(chp->ch_channel))), 1312 DEBUG_FUNCS); 1313 1314 if (ata_waitdrain_xfer_check(chp, xfer)) 1315 return 0; 1316 1317 if (xfer->c_flags & C_TIMEOU) { 1318 ata_c->flags |= AT_TIMEOU; 1319 } 1320 1321 if (AHCI_TFD_ST(tfd) & WDCS_BSY) { 1322 ata_c->flags |= AT_TIMEOU; 1323 } else if (AHCI_TFD_ST(tfd) & WDCS_ERR) { 1324 ata_c->r_error = AHCI_TFD_ERR(tfd); 1325 ata_c->flags |= AT_ERROR; 1326 } 1327 1328 if (ata_c->flags & AT_READREG) { 1329 AHCI_RFIS_SYNC(sc, achp, BUS_DMASYNC_POSTREAD); 1330 satafis_rdh_cmd_readreg(ata_c, achp->ahcic_rfis->rfis_rfis); 1331 } 1332 1333 ahci_cmd_done(chp, xfer); 1334 1335 ata_deactivate_xfer(chp, xfer); 1336 1337 if ((ata_c->flags & (AT_TIMEOU|AT_ERROR)) == 0) 1338 atastart(chp); 1339 1340 return 0; 1341 } 1342 1343 static void 1344 ahci_cmd_done(struct ata_channel *chp, struct ata_xfer *xfer) 1345 { 1346 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1347 struct ahci_channel *achp = (struct ahci_channel *)chp; 1348 struct ata_command *ata_c = &xfer->c_ata_c; 1349 uint16_t *idwordbuf; 1350 int i; 1351 1352 AHCIDEBUG_PRINT(("ahci_cmd_done port %d flags %#x/%#x\n", 1353 chp->ch_channel, xfer->c_flags, ata_c->flags), DEBUG_FUNCS); 1354 1355 if (ata_c->flags & (AT_READ|AT_WRITE) && ata_c->bcount > 0) { 1356 bus_dmamap_t map = achp->ahcic_datad[xfer->c_slot]; 1357 bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize, 1358 (ata_c->flags & AT_READ) ? BUS_DMASYNC_POSTREAD : 1359 BUS_DMASYNC_POSTWRITE); 1360 bus_dmamap_unload(sc->sc_dmat, map); 1361 } 1362 1363 AHCI_CMDH_SYNC(sc, achp, xfer->c_slot, 1364 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1365 1366 /* ata(4) expects IDENTIFY data to be in host endianess */ 1367 if (ata_c->r_command == WDCC_IDENTIFY || 1368 ata_c->r_command == ATAPI_IDENTIFY_DEVICE) { 1369 idwordbuf = xfer->c_databuf; 1370 for (i = 0; i < (xfer->c_bcount / sizeof(*idwordbuf)); i++) { 1371 idwordbuf[i] = le16toh(idwordbuf[i]); 1372 } 1373 } 1374 1375 if (achp->ahcic_cmdh[xfer->c_slot].cmdh_prdbc) 1376 ata_c->flags |= AT_XFDONE; 1377 1378 ahci_cmd_done_end(chp, xfer); 1379 } 1380 1381 static void 1382 ahci_cmd_done_end(struct ata_channel *chp, struct ata_xfer *xfer) 1383 { 1384 struct ata_command *ata_c = &xfer->c_ata_c; 1385 1386 ata_c->flags |= AT_DONE; 1387 } 1388 1389 static const struct ata_xfer_ops ahci_bio_xfer_ops = { 1390 .c_start = ahci_bio_start, 1391 .c_poll = ahci_bio_poll, 1392 .c_abort = ahci_bio_abort, 1393 .c_intr = ahci_bio_complete, 1394 .c_kill_xfer = ahci_bio_kill_xfer, 1395 }; 1396 1397 static void 1398 ahci_ata_bio(struct ata_drive_datas *drvp, struct ata_xfer *xfer) 1399 { 1400 struct ata_channel *chp = drvp->chnl_softc; 1401 struct ata_bio *ata_bio = &xfer->c_bio; 1402 1403 AHCIDEBUG_PRINT(("ahci_ata_bio port %d CI 0x%x\n", 1404 chp->ch_channel, 1405 AHCI_READ(AHCI_CH2SC(chp), AHCI_P_CI(chp->ch_channel))), 1406 DEBUG_XFERS); 1407 if (ata_bio->flags & ATA_POLL) 1408 xfer->c_flags |= C_POLL; 1409 xfer->c_drive = drvp->drive; 1410 xfer->c_databuf = ata_bio->databuf; 1411 xfer->c_bcount = ata_bio->bcount; 1412 xfer->ops = &ahci_bio_xfer_ops; 1413 ata_exec_xfer(chp, xfer); 1414 } 1415 1416 static int 1417 ahci_bio_start(struct ata_channel *chp, struct ata_xfer *xfer) 1418 { 1419 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1420 struct ahci_channel *achp = (struct ahci_channel *)chp; 1421 struct ata_bio *ata_bio = &xfer->c_bio; 1422 struct ahci_cmd_tbl *cmd_tbl; 1423 struct ahci_cmd_header *cmd_h; 1424 1425 AHCIDEBUG_PRINT(("ahci_bio_start CI 0x%x\n", 1426 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel))), DEBUG_XFERS); 1427 1428 ata_channel_lock_owned(chp); 1429 1430 cmd_tbl = achp->ahcic_cmd_tbl[xfer->c_slot]; 1431 AHCIDEBUG_PRINT(("%s port %d tbl %p\n", AHCINAME(sc), chp->ch_channel, 1432 cmd_tbl), DEBUG_XFERS); 1433 1434 satafis_rhd_construct_bio(xfer, cmd_tbl->cmdt_cfis); 1435 cmd_tbl->cmdt_cfis[rhd_c] |= xfer->c_drive; 1436 1437 cmd_h = &achp->ahcic_cmdh[xfer->c_slot]; 1438 AHCIDEBUG_PRINT(("%s port %d header %p\n", AHCINAME(sc), 1439 chp->ch_channel, cmd_h), DEBUG_XFERS); 1440 if (ahci_dma_setup(chp, xfer->c_slot, ata_bio->databuf, ata_bio->bcount, 1441 (ata_bio->flags & ATA_READ) ? BUS_DMA_READ : BUS_DMA_WRITE)) { 1442 ata_bio->error = ERR_DMA; 1443 ata_bio->r_error = 0; 1444 return ATASTART_ABORT; 1445 } 1446 cmd_h->cmdh_flags = htole16( 1447 ((ata_bio->flags & ATA_READ) ? 0 : AHCI_CMDH_F_WR) | 1448 RHD_FISLEN / 4 | (xfer->c_drive << AHCI_CMDH_F_PMP_SHIFT)); 1449 cmd_h->cmdh_prdbc = 0; 1450 AHCI_CMDH_SYNC(sc, achp, xfer->c_slot, 1451 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1452 1453 if (xfer->c_flags & C_POLL) { 1454 /* polled command, disable interrupts */ 1455 AHCI_WRITE(sc, AHCI_GHC, 1456 AHCI_READ(sc, AHCI_GHC) & ~AHCI_GHC_IE); 1457 } 1458 if (xfer->c_flags & C_NCQ) 1459 AHCI_WRITE(sc, AHCI_P_SACT(chp->ch_channel), 1U << xfer->c_slot); 1460 /* start command */ 1461 AHCI_WRITE(sc, AHCI_P_CI(chp->ch_channel), 1U << xfer->c_slot); 1462 1463 if ((xfer->c_flags & C_POLL) == 0) { 1464 callout_reset(&chp->c_timo_callout, mstohz(ATA_DELAY), 1465 ata_timeout, chp); 1466 return ATASTART_STARTED; 1467 } else 1468 return ATASTART_POLL; 1469 } 1470 1471 static void 1472 ahci_bio_poll(struct ata_channel *chp, struct ata_xfer *xfer) 1473 { 1474 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1475 struct ahci_channel *achp = (struct ahci_channel *)chp; 1476 1477 /* 1478 * Polled command. 1479 */ 1480 for (int i = 0; i < ATA_DELAY * 10; i++) { 1481 if (xfer->c_bio.flags & ATA_ITSDONE) 1482 break; 1483 ahci_intr_port(achp); 1484 delay(100); 1485 } 1486 AHCIDEBUG_PRINT(("%s port %d poll end GHC 0x%x IS 0x%x list 0x%x%x fis 0x%x%x CMD 0x%x CI 0x%x\n", AHCINAME(sc), chp->ch_channel, 1487 AHCI_READ(sc, AHCI_GHC), AHCI_READ(sc, AHCI_IS), 1488 AHCI_READ(sc, AHCI_P_CLBU(chp->ch_channel)), 1489 AHCI_READ(sc, AHCI_P_CLB(chp->ch_channel)), 1490 AHCI_READ(sc, AHCI_P_FBU(chp->ch_channel)), 1491 AHCI_READ(sc, AHCI_P_FB(chp->ch_channel)), 1492 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)), 1493 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel))), 1494 DEBUG_XFERS); 1495 if ((xfer->c_bio.flags & ATA_ITSDONE) == 0) { 1496 xfer->c_bio.error = TIMEOUT; 1497 xfer->ops->c_intr(chp, xfer, 0); 1498 } 1499 /* reenable interrupts */ 1500 AHCI_WRITE(sc, AHCI_GHC, AHCI_READ(sc, AHCI_GHC) | AHCI_GHC_IE); 1501 } 1502 1503 static void 1504 ahci_bio_abort(struct ata_channel *chp, struct ata_xfer *xfer) 1505 { 1506 ahci_bio_complete(chp, xfer, 0); 1507 } 1508 1509 static void 1510 ahci_bio_kill_xfer(struct ata_channel *chp, struct ata_xfer *xfer, int reason) 1511 { 1512 int drive = xfer->c_drive; 1513 struct ata_bio *ata_bio = &xfer->c_bio; 1514 bool deactivate = true; 1515 1516 AHCIDEBUG_PRINT(("ahci_bio_kill_xfer port %d\n", chp->ch_channel), 1517 DEBUG_FUNCS); 1518 1519 ata_bio->flags |= ATA_ITSDONE; 1520 switch (reason) { 1521 case KILL_GONE_INACTIVE: 1522 deactivate = false; 1523 /* FALLTHROUGH */ 1524 case KILL_GONE: 1525 ata_bio->error = ERR_NODEV; 1526 break; 1527 case KILL_RESET: 1528 ata_bio->error = ERR_RESET; 1529 break; 1530 case KILL_REQUEUE: 1531 ata_bio->error = REQUEUE; 1532 break; 1533 default: 1534 printf("ahci_bio_kill_xfer: unknown reason %d\n", reason); 1535 panic("ahci_bio_kill_xfer"); 1536 } 1537 ata_bio->r_error = WDCE_ABRT; 1538 1539 if (deactivate) 1540 ata_deactivate_xfer(chp, xfer); 1541 1542 (*chp->ch_drive[drive].drv_done)(chp->ch_drive[drive].drv_softc, xfer); 1543 } 1544 1545 static int 1546 ahci_bio_complete(struct ata_channel *chp, struct ata_xfer *xfer, int tfd) 1547 { 1548 struct ata_bio *ata_bio = &xfer->c_bio; 1549 int drive = xfer->c_drive; 1550 struct ahci_channel *achp = (struct ahci_channel *)chp; 1551 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1552 1553 AHCIDEBUG_PRINT(("ahci_bio_complete port %d\n", chp->ch_channel), 1554 DEBUG_FUNCS); 1555 1556 if (ata_waitdrain_xfer_check(chp, xfer)) 1557 return 0; 1558 1559 if (xfer->c_flags & C_TIMEOU) { 1560 ata_bio->error = TIMEOUT; 1561 } 1562 1563 bus_dmamap_sync(sc->sc_dmat, achp->ahcic_datad[xfer->c_slot], 0, 1564 achp->ahcic_datad[xfer->c_slot]->dm_mapsize, 1565 (ata_bio->flags & ATA_READ) ? BUS_DMASYNC_POSTREAD : 1566 BUS_DMASYNC_POSTWRITE); 1567 bus_dmamap_unload(sc->sc_dmat, achp->ahcic_datad[xfer->c_slot]); 1568 1569 ata_bio->flags |= ATA_ITSDONE; 1570 if (AHCI_TFD_ERR(tfd) & WDCS_DWF) { 1571 ata_bio->error = ERR_DF; 1572 } else if (AHCI_TFD_ST(tfd) & WDCS_ERR) { 1573 ata_bio->error = ERROR; 1574 ata_bio->r_error = AHCI_TFD_ERR(tfd); 1575 } else if (AHCI_TFD_ST(tfd) & WDCS_CORR) 1576 ata_bio->flags |= ATA_CORR; 1577 1578 AHCI_CMDH_SYNC(sc, achp, xfer->c_slot, 1579 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1580 AHCIDEBUG_PRINT(("ahci_bio_complete bcount %ld", 1581 ata_bio->bcount), DEBUG_XFERS); 1582 /* 1583 * If it was a write, complete data buffer may have been transferred 1584 * before error detection; in this case don't use cmdh_prdbc 1585 * as it won't reflect what was written to media. Assume nothing 1586 * was transferred and leave bcount as-is. 1587 * For queued commands, PRD Byte Count should not be used, and is 1588 * not required to be valid; in that case underflow is always illegal. 1589 */ 1590 if ((xfer->c_flags & C_NCQ) != 0) { 1591 if (ata_bio->error == NOERROR) 1592 ata_bio->bcount = 0; 1593 } else { 1594 if ((ata_bio->flags & ATA_READ) || ata_bio->error == NOERROR) 1595 ata_bio->bcount -= 1596 le32toh(achp->ahcic_cmdh[xfer->c_slot].cmdh_prdbc); 1597 } 1598 AHCIDEBUG_PRINT((" now %ld\n", ata_bio->bcount), DEBUG_XFERS); 1599 1600 ata_deactivate_xfer(chp, xfer); 1601 1602 (*chp->ch_drive[drive].drv_done)(chp->ch_drive[drive].drv_softc, xfer); 1603 if ((AHCI_TFD_ST(tfd) & WDCS_ERR) == 0) 1604 atastart(chp); 1605 return 0; 1606 } 1607 1608 static void 1609 ahci_channel_stop(struct ahci_softc *sc, struct ata_channel *chp, int flags) 1610 { 1611 int i; 1612 /* stop channel */ 1613 AHCI_WRITE(sc, AHCI_P_CMD(chp->ch_channel), 1614 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & ~AHCI_P_CMD_ST); 1615 /* wait 1s for channel to stop */ 1616 for (i = 0; i <100; i++) { 1617 if ((AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & AHCI_P_CMD_CR) 1618 == 0) 1619 break; 1620 ata_delay(chp, 10, "ahcistop", flags); 1621 } 1622 if (AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & AHCI_P_CMD_CR) { 1623 printf("%s: channel wouldn't stop\n", AHCINAME(sc)); 1624 /* XXX controller reset ? */ 1625 return; 1626 } 1627 1628 if (sc->sc_channel_stop) 1629 sc->sc_channel_stop(sc, chp); 1630 } 1631 1632 static void 1633 ahci_channel_start(struct ahci_softc *sc, struct ata_channel *chp, 1634 int flags, int clo) 1635 { 1636 int i; 1637 uint32_t p_cmd; 1638 /* clear error */ 1639 AHCI_WRITE(sc, AHCI_P_SERR(chp->ch_channel), 1640 AHCI_READ(sc, AHCI_P_SERR(chp->ch_channel))); 1641 1642 if (clo) { 1643 /* issue command list override */ 1644 KASSERT(sc->sc_ahci_cap & AHCI_CAP_CLO); 1645 AHCI_WRITE(sc, AHCI_P_CMD(chp->ch_channel), 1646 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) | AHCI_P_CMD_CLO); 1647 /* wait 1s for AHCI_CAP_CLO to clear */ 1648 for (i = 0; i <100; i++) { 1649 if ((AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & 1650 AHCI_P_CMD_CLO) == 0) 1651 break; 1652 ata_delay(chp, 10, "ahciclo", flags); 1653 } 1654 if (AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)) & AHCI_P_CMD_CLO) { 1655 printf("%s: channel wouldn't CLO\n", AHCINAME(sc)); 1656 /* XXX controller reset ? */ 1657 return; 1658 } 1659 } 1660 1661 if (sc->sc_channel_start) 1662 sc->sc_channel_start(sc, chp); 1663 1664 /* and start controller */ 1665 p_cmd = AHCI_P_CMD_ICC_AC | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1666 AHCI_P_CMD_FRE | AHCI_P_CMD_ST; 1667 if (chp->ch_ndrives > PMP_PORT_CTL && 1668 chp->ch_drive[PMP_PORT_CTL].drive_type == ATA_DRIVET_PM) { 1669 p_cmd |= AHCI_P_CMD_PMA; 1670 } 1671 AHCI_WRITE(sc, AHCI_P_CMD(chp->ch_channel), p_cmd); 1672 } 1673 1674 /* Recover channel after command failure */ 1675 static void 1676 ahci_channel_recover(struct ata_channel *chp, int flags, uint32_t tfd) 1677 { 1678 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1679 int drive = ATACH_NODRIVE; 1680 bool reset = false; 1681 1682 ata_channel_lock_owned(chp); 1683 1684 /* 1685 * Read FBS to get the drive which caused the error, if PM is in use. 1686 * According to AHCI 1.3 spec, this register is available regardless 1687 * if FIS-based switching (FBSS) feature is supported, or disabled. 1688 * If FIS-based switching is not in use, it merely maintains single 1689 * pair of DRQ/BSY state, but it is enough since in that case we 1690 * never issue commands for more than one device at the time anyway. 1691 * XXX untested 1692 */ 1693 if (chp->ch_ndrives > PMP_PORT_CTL) { 1694 uint32_t fbs = AHCI_READ(sc, AHCI_P_FBS(chp->ch_channel)); 1695 if (fbs & AHCI_P_FBS_SDE) { 1696 drive = (fbs & AHCI_P_FBS_DWE) >> AHCI_P_FBS_DWE_SHIFT; 1697 1698 /* 1699 * Tell HBA to reset PM port X (value in DWE) state, 1700 * and resume processing commands for other ports. 1701 */ 1702 fbs |= AHCI_P_FBS_DEC; 1703 AHCI_WRITE(sc, AHCI_P_FBS(chp->ch_channel), fbs); 1704 for (int i = 0; i < 1000; i++) { 1705 fbs = AHCI_READ(sc, 1706 AHCI_P_FBS(chp->ch_channel)); 1707 if ((fbs & AHCI_P_FBS_DEC) == 0) 1708 break; 1709 DELAY(1000); 1710 } 1711 if ((fbs & AHCI_P_FBS_DEC) != 0) { 1712 /* follow non-device specific recovery */ 1713 drive = ATACH_NODRIVE; 1714 reset = true; 1715 } 1716 } else { 1717 /* not device specific, reset channel */ 1718 drive = ATACH_NODRIVE; 1719 reset = true; 1720 } 1721 } else 1722 drive = 0; 1723 1724 /* 1725 * If BSY or DRQ bits are set, must execute COMRESET to return 1726 * device to idle state. If drive is idle, it's enough to just 1727 * reset CMD.ST, it's not necessary to do software reset. 1728 * After resetting CMD.ST, need to execute READ LOG EXT for NCQ 1729 * to unblock device processing if COMRESET was not done. 1730 */ 1731 if (reset || (AHCI_TFD_ST(tfd) & (WDCS_BSY|WDCS_DRQ)) != 0) { 1732 ahci_reset_channel(chp, flags); 1733 goto out; 1734 } 1735 1736 KASSERT(drive != ATACH_NODRIVE && drive >= 0); 1737 ahci_channel_stop(sc, chp, flags); 1738 ahci_channel_start(sc, chp, flags, 1739 (sc->sc_ahci_cap & AHCI_CAP_CLO) ? 1 : 0); 1740 1741 ata_recovery_resume(chp, drive, tfd, flags); 1742 1743 out: 1744 /* Drive unblocked, back to normal operation */ 1745 return; 1746 } 1747 1748 static int 1749 ahci_dma_setup(struct ata_channel *chp, int slot, void *data, 1750 size_t count, int op) 1751 { 1752 int error, seg; 1753 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1754 struct ahci_channel *achp = (struct ahci_channel *)chp; 1755 struct ahci_cmd_tbl *cmd_tbl; 1756 struct ahci_cmd_header *cmd_h; 1757 1758 cmd_h = &achp->ahcic_cmdh[slot]; 1759 cmd_tbl = achp->ahcic_cmd_tbl[slot]; 1760 1761 if (data == NULL) { 1762 cmd_h->cmdh_prdtl = 0; 1763 goto end; 1764 } 1765 1766 error = bus_dmamap_load(sc->sc_dmat, achp->ahcic_datad[slot], 1767 data, count, NULL, 1768 BUS_DMA_NOWAIT | BUS_DMA_STREAMING | op); 1769 if (error) { 1770 printf("%s port %d: failed to load xfer: %d\n", 1771 AHCINAME(sc), chp->ch_channel, error); 1772 return error; 1773 } 1774 bus_dmamap_sync(sc->sc_dmat, achp->ahcic_datad[slot], 0, 1775 achp->ahcic_datad[slot]->dm_mapsize, 1776 (op == BUS_DMA_READ) ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 1777 for (seg = 0; seg < achp->ahcic_datad[slot]->dm_nsegs; seg++) { 1778 cmd_tbl->cmdt_prd[seg].prd_dba = htole64( 1779 achp->ahcic_datad[slot]->dm_segs[seg].ds_addr); 1780 cmd_tbl->cmdt_prd[seg].prd_dbc = htole32( 1781 achp->ahcic_datad[slot]->dm_segs[seg].ds_len - 1); 1782 } 1783 cmd_tbl->cmdt_prd[seg - 1].prd_dbc |= htole32(AHCI_PRD_DBC_IPC); 1784 cmd_h->cmdh_prdtl = htole16(achp->ahcic_datad[slot]->dm_nsegs); 1785 end: 1786 AHCI_CMDTBL_SYNC(sc, achp, slot, BUS_DMASYNC_PREWRITE); 1787 return 0; 1788 } 1789 1790 #if NATAPIBUS > 0 1791 static void 1792 ahci_atapibus_attach(struct atabus_softc * ata_sc) 1793 { 1794 struct ata_channel *chp = ata_sc->sc_chan; 1795 struct atac_softc *atac = chp->ch_atac; 1796 struct scsipi_adapter *adapt = &atac->atac_atapi_adapter._generic; 1797 struct scsipi_channel *chan = &chp->ch_atapi_channel; 1798 /* 1799 * Fill in the scsipi_adapter. 1800 */ 1801 adapt->adapt_dev = atac->atac_dev; 1802 adapt->adapt_nchannels = atac->atac_nchannels; 1803 adapt->adapt_request = ahci_atapi_scsipi_request; 1804 adapt->adapt_minphys = ahci_atapi_minphys; 1805 atac->atac_atapi_adapter.atapi_probe_device = ahci_atapi_probe_device; 1806 1807 /* 1808 * Fill in the scsipi_channel. 1809 */ 1810 memset(chan, 0, sizeof(*chan)); 1811 chan->chan_adapter = adapt; 1812 chan->chan_bustype = &ahci_atapi_bustype; 1813 chan->chan_channel = chp->ch_channel; 1814 chan->chan_flags = SCSIPI_CHAN_OPENINGS; 1815 chan->chan_openings = 1; 1816 chan->chan_max_periph = 1; 1817 chan->chan_ntargets = 1; 1818 chan->chan_nluns = 1; 1819 chp->atapibus = config_found(ata_sc->sc_dev, chan, atapiprint, 1820 CFARG_IATTR, "atapi", 1821 CFARG_EOL); 1822 } 1823 1824 static void 1825 ahci_atapi_minphys(struct buf *bp) 1826 { 1827 if (bp->b_bcount > MAXPHYS) 1828 bp->b_bcount = MAXPHYS; 1829 minphys(bp); 1830 } 1831 1832 /* 1833 * Kill off all pending xfers for a periph. 1834 * 1835 * Must be called at splbio(). 1836 */ 1837 static void 1838 ahci_atapi_kill_pending(struct scsipi_periph *periph) 1839 { 1840 struct atac_softc *atac = 1841 device_private(periph->periph_channel->chan_adapter->adapt_dev); 1842 struct ata_channel *chp = 1843 atac->atac_channels[periph->periph_channel->chan_channel]; 1844 1845 ata_kill_pending(&chp->ch_drive[periph->periph_target]); 1846 } 1847 1848 static const struct ata_xfer_ops ahci_atapi_xfer_ops = { 1849 .c_start = ahci_atapi_start, 1850 .c_poll = ahci_atapi_poll, 1851 .c_abort = ahci_atapi_abort, 1852 .c_intr = ahci_atapi_complete, 1853 .c_kill_xfer = ahci_atapi_kill_xfer, 1854 }; 1855 1856 static void 1857 ahci_atapi_scsipi_request(struct scsipi_channel *chan, 1858 scsipi_adapter_req_t req, void *arg) 1859 { 1860 struct scsipi_adapter *adapt = chan->chan_adapter; 1861 struct scsipi_periph *periph; 1862 struct scsipi_xfer *sc_xfer; 1863 struct ahci_softc *sc = device_private(adapt->adapt_dev); 1864 struct atac_softc *atac = &sc->sc_atac; 1865 struct ata_xfer *xfer; 1866 int channel = chan->chan_channel; 1867 int drive, s; 1868 1869 switch (req) { 1870 case ADAPTER_REQ_RUN_XFER: 1871 sc_xfer = arg; 1872 periph = sc_xfer->xs_periph; 1873 drive = periph->periph_target; 1874 if (!device_is_active(atac->atac_dev)) { 1875 sc_xfer->error = XS_DRIVER_STUFFUP; 1876 scsipi_done(sc_xfer); 1877 return; 1878 } 1879 xfer = ata_get_xfer(atac->atac_channels[channel], false); 1880 if (xfer == NULL) { 1881 sc_xfer->error = XS_RESOURCE_SHORTAGE; 1882 scsipi_done(sc_xfer); 1883 return; 1884 } 1885 1886 if (sc_xfer->xs_control & XS_CTL_POLL) 1887 xfer->c_flags |= C_POLL; 1888 xfer->c_drive = drive; 1889 xfer->c_flags |= C_ATAPI; 1890 xfer->c_databuf = sc_xfer->data; 1891 xfer->c_bcount = sc_xfer->datalen; 1892 xfer->ops = &ahci_atapi_xfer_ops; 1893 xfer->c_scsipi = sc_xfer; 1894 xfer->c_atapi.c_dscpoll = 0; 1895 s = splbio(); 1896 ata_exec_xfer(atac->atac_channels[channel], xfer); 1897 #ifdef DIAGNOSTIC 1898 if ((sc_xfer->xs_control & XS_CTL_POLL) != 0 && 1899 (sc_xfer->xs_status & XS_STS_DONE) == 0) 1900 panic("ahci_atapi_scsipi_request: polled command " 1901 "not done"); 1902 #endif 1903 splx(s); 1904 return; 1905 default: 1906 /* Not supported, nothing to do. */ 1907 ; 1908 } 1909 } 1910 1911 static int 1912 ahci_atapi_start(struct ata_channel *chp, struct ata_xfer *xfer) 1913 { 1914 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1915 struct ahci_channel *achp = (struct ahci_channel *)chp; 1916 struct scsipi_xfer *sc_xfer = xfer->c_scsipi; 1917 struct ahci_cmd_tbl *cmd_tbl; 1918 struct ahci_cmd_header *cmd_h; 1919 1920 AHCIDEBUG_PRINT(("ahci_atapi_start CI 0x%x\n", 1921 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel))), DEBUG_XFERS); 1922 1923 ata_channel_lock_owned(chp); 1924 1925 cmd_tbl = achp->ahcic_cmd_tbl[xfer->c_slot]; 1926 AHCIDEBUG_PRINT(("%s port %d tbl %p\n", AHCINAME(sc), chp->ch_channel, 1927 cmd_tbl), DEBUG_XFERS); 1928 1929 satafis_rhd_construct_atapi(xfer, cmd_tbl->cmdt_cfis); 1930 cmd_tbl->cmdt_cfis[rhd_c] |= xfer->c_drive; 1931 memset(&cmd_tbl->cmdt_acmd, 0, sizeof(cmd_tbl->cmdt_acmd)); 1932 memcpy(cmd_tbl->cmdt_acmd, sc_xfer->cmd, sc_xfer->cmdlen); 1933 1934 cmd_h = &achp->ahcic_cmdh[xfer->c_slot]; 1935 AHCIDEBUG_PRINT(("%s port %d header %p\n", AHCINAME(sc), 1936 chp->ch_channel, cmd_h), DEBUG_XFERS); 1937 if (ahci_dma_setup(chp, xfer->c_slot, 1938 sc_xfer->datalen ? sc_xfer->data : NULL, 1939 sc_xfer->datalen, 1940 (sc_xfer->xs_control & XS_CTL_DATA_IN) ? 1941 BUS_DMA_READ : BUS_DMA_WRITE)) { 1942 sc_xfer->error = XS_DRIVER_STUFFUP; 1943 return ATASTART_ABORT; 1944 } 1945 cmd_h->cmdh_flags = htole16( 1946 ((sc_xfer->xs_control & XS_CTL_DATA_OUT) ? AHCI_CMDH_F_WR : 0) | 1947 RHD_FISLEN / 4 | AHCI_CMDH_F_A | 1948 (xfer->c_drive << AHCI_CMDH_F_PMP_SHIFT)); 1949 cmd_h->cmdh_prdbc = 0; 1950 AHCI_CMDH_SYNC(sc, achp, xfer->c_slot, 1951 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1952 1953 if (xfer->c_flags & C_POLL) { 1954 /* polled command, disable interrupts */ 1955 AHCI_WRITE(sc, AHCI_GHC, 1956 AHCI_READ(sc, AHCI_GHC) & ~AHCI_GHC_IE); 1957 } 1958 /* start command */ 1959 AHCI_WRITE(sc, AHCI_P_CI(chp->ch_channel), 1U << xfer->c_slot); 1960 1961 if ((xfer->c_flags & C_POLL) == 0) { 1962 callout_reset(&chp->c_timo_callout, mstohz(sc_xfer->timeout), 1963 ata_timeout, chp); 1964 return ATASTART_STARTED; 1965 } else 1966 return ATASTART_POLL; 1967 } 1968 1969 static void 1970 ahci_atapi_poll(struct ata_channel *chp, struct ata_xfer *xfer) 1971 { 1972 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 1973 struct ahci_channel *achp = (struct ahci_channel *)chp; 1974 1975 /* 1976 * Polled command. 1977 */ 1978 for (int i = 0; i < ATA_DELAY / 10; i++) { 1979 if (xfer->c_scsipi->xs_status & XS_STS_DONE) 1980 break; 1981 ahci_intr_port(achp); 1982 delay(10000); 1983 } 1984 AHCIDEBUG_PRINT(("%s port %d poll end GHC 0x%x IS 0x%x list 0x%x%x fis 0x%x%x CMD 0x%x CI 0x%x\n", AHCINAME(sc), chp->ch_channel, 1985 AHCI_READ(sc, AHCI_GHC), AHCI_READ(sc, AHCI_IS), 1986 AHCI_READ(sc, AHCI_P_CLBU(chp->ch_channel)), 1987 AHCI_READ(sc, AHCI_P_CLB(chp->ch_channel)), 1988 AHCI_READ(sc, AHCI_P_FBU(chp->ch_channel)), 1989 AHCI_READ(sc, AHCI_P_FB(chp->ch_channel)), 1990 AHCI_READ(sc, AHCI_P_CMD(chp->ch_channel)), 1991 AHCI_READ(sc, AHCI_P_CI(chp->ch_channel))), 1992 DEBUG_XFERS); 1993 if ((xfer->c_scsipi->xs_status & XS_STS_DONE) == 0) { 1994 xfer->c_scsipi->error = XS_TIMEOUT; 1995 xfer->ops->c_intr(chp, xfer, 0); 1996 } 1997 /* reenable interrupts */ 1998 AHCI_WRITE(sc, AHCI_GHC, AHCI_READ(sc, AHCI_GHC) | AHCI_GHC_IE); 1999 } 2000 2001 static void 2002 ahci_atapi_abort(struct ata_channel *chp, struct ata_xfer *xfer) 2003 { 2004 ahci_atapi_complete(chp, xfer, 0); 2005 } 2006 2007 static int 2008 ahci_atapi_complete(struct ata_channel *chp, struct ata_xfer *xfer, int tfd) 2009 { 2010 struct scsipi_xfer *sc_xfer = xfer->c_scsipi; 2011 struct ahci_channel *achp = (struct ahci_channel *)chp; 2012 struct ahci_softc *sc = (struct ahci_softc *)chp->ch_atac; 2013 2014 AHCIDEBUG_PRINT(("ahci_atapi_complete port %d\n", chp->ch_channel), 2015 DEBUG_FUNCS); 2016 2017 if (ata_waitdrain_xfer_check(chp, xfer)) 2018 return 0; 2019 2020 if (xfer->c_flags & C_TIMEOU) { 2021 sc_xfer->error = XS_TIMEOUT; 2022 } 2023 2024 if (xfer->c_bcount > 0) { 2025 bus_dmamap_sync(sc->sc_dmat, achp->ahcic_datad[xfer->c_slot], 0, 2026 achp->ahcic_datad[xfer->c_slot]->dm_mapsize, 2027 (sc_xfer->xs_control & XS_CTL_DATA_IN) ? 2028 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2029 bus_dmamap_unload(sc->sc_dmat, achp->ahcic_datad[xfer->c_slot]); 2030 } 2031 2032 AHCI_CMDH_SYNC(sc, achp, xfer->c_slot, 2033 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2034 sc_xfer->resid = sc_xfer->datalen; 2035 sc_xfer->resid -= le32toh(achp->ahcic_cmdh[xfer->c_slot].cmdh_prdbc); 2036 AHCIDEBUG_PRINT(("ahci_atapi_complete datalen %d resid %d\n", 2037 sc_xfer->datalen, sc_xfer->resid), DEBUG_XFERS); 2038 if (AHCI_TFD_ST(tfd) & WDCS_ERR && 2039 ((sc_xfer->xs_control & XS_CTL_REQSENSE) == 0 || 2040 sc_xfer->resid == sc_xfer->datalen)) { 2041 sc_xfer->error = XS_SHORTSENSE; 2042 sc_xfer->sense.atapi_sense = AHCI_TFD_ERR(tfd); 2043 if ((sc_xfer->xs_periph->periph_quirks & 2044 PQUIRK_NOSENSE) == 0) { 2045 /* ask scsipi to send a REQUEST_SENSE */ 2046 sc_xfer->error = XS_BUSY; 2047 sc_xfer->status = SCSI_CHECK; 2048 } 2049 } 2050 2051 ata_deactivate_xfer(chp, xfer); 2052 2053 ata_free_xfer(chp, xfer); 2054 scsipi_done(sc_xfer); 2055 if ((AHCI_TFD_ST(tfd) & WDCS_ERR) == 0) 2056 atastart(chp); 2057 return 0; 2058 } 2059 2060 static void 2061 ahci_atapi_kill_xfer(struct ata_channel *chp, struct ata_xfer *xfer, int reason) 2062 { 2063 struct scsipi_xfer *sc_xfer = xfer->c_scsipi; 2064 bool deactivate = true; 2065 2066 /* remove this command from xfer queue */ 2067 switch (reason) { 2068 case KILL_GONE_INACTIVE: 2069 deactivate = false; 2070 /* FALLTHROUGH */ 2071 case KILL_GONE: 2072 sc_xfer->error = XS_DRIVER_STUFFUP; 2073 break; 2074 case KILL_RESET: 2075 sc_xfer->error = XS_RESET; 2076 break; 2077 case KILL_REQUEUE: 2078 sc_xfer->error = XS_REQUEUE; 2079 break; 2080 default: 2081 printf("ahci_ata_atapi_kill_xfer: unknown reason %d\n", reason); 2082 panic("ahci_ata_atapi_kill_xfer"); 2083 } 2084 2085 if (deactivate) 2086 ata_deactivate_xfer(chp, xfer); 2087 2088 ata_free_xfer(chp, xfer); 2089 scsipi_done(sc_xfer); 2090 } 2091 2092 static void 2093 ahci_atapi_probe_device(struct atapibus_softc *sc, int target) 2094 { 2095 struct scsipi_channel *chan = sc->sc_channel; 2096 struct scsipi_periph *periph; 2097 struct ataparams ids; 2098 struct ataparams *id = &ids; 2099 struct ahci_softc *ahcic = 2100 device_private(chan->chan_adapter->adapt_dev); 2101 struct atac_softc *atac = &ahcic->sc_atac; 2102 struct ata_channel *chp = atac->atac_channels[chan->chan_channel]; 2103 struct ata_drive_datas *drvp = &chp->ch_drive[target]; 2104 struct scsipibus_attach_args sa; 2105 char serial_number[21], model[41], firmware_revision[9]; 2106 int s; 2107 2108 /* skip if already attached */ 2109 if (scsipi_lookup_periph(chan, target, 0) != NULL) 2110 return; 2111 2112 /* if no ATAPI device detected at attach time, skip */ 2113 if (drvp->drive_type != ATA_DRIVET_ATAPI) { 2114 AHCIDEBUG_PRINT(("ahci_atapi_probe_device: drive %d " 2115 "not present\n", target), DEBUG_PROBE); 2116 return; 2117 } 2118 2119 /* Some ATAPI devices need a bit more time after software reset. */ 2120 delay(5000); 2121 if (ata_get_params(drvp, AT_WAIT, id) == 0) { 2122 #ifdef ATAPI_DEBUG_PROBE 2123 printf("%s drive %d: cmdsz 0x%x drqtype 0x%x\n", 2124 AHCINAME(ahcic), target, 2125 id->atap_config & ATAPI_CFG_CMD_MASK, 2126 id->atap_config & ATAPI_CFG_DRQ_MASK); 2127 #endif 2128 periph = scsipi_alloc_periph(M_NOWAIT); 2129 if (periph == NULL) { 2130 aprint_error_dev(sc->sc_dev, 2131 "unable to allocate periph for drive %d\n", 2132 target); 2133 return; 2134 } 2135 periph->periph_dev = NULL; 2136 periph->periph_channel = chan; 2137 periph->periph_switch = &atapi_probe_periphsw; 2138 periph->periph_target = target; 2139 periph->periph_lun = 0; 2140 periph->periph_quirks = PQUIRK_ONLYBIG; 2141 2142 #ifdef SCSIPI_DEBUG 2143 if (SCSIPI_DEBUG_TYPE == SCSIPI_BUSTYPE_ATAPI && 2144 SCSIPI_DEBUG_TARGET == target) 2145 periph->periph_dbflags |= SCSIPI_DEBUG_FLAGS; 2146 #endif 2147 periph->periph_type = ATAPI_CFG_TYPE(id->atap_config); 2148 if (id->atap_config & ATAPI_CFG_REMOV) 2149 periph->periph_flags |= PERIPH_REMOVABLE; 2150 if (periph->periph_type == T_SEQUENTIAL) { 2151 s = splbio(); 2152 drvp->drive_flags |= ATA_DRIVE_ATAPIDSCW; 2153 splx(s); 2154 } 2155 2156 sa.sa_periph = periph; 2157 sa.sa_inqbuf.type = ATAPI_CFG_TYPE(id->atap_config); 2158 sa.sa_inqbuf.removable = id->atap_config & ATAPI_CFG_REMOV ? 2159 T_REMOV : T_FIXED; 2160 strnvisx(model, sizeof(model), id->atap_model, 40, 2161 VIS_TRIM|VIS_SAFE|VIS_OCTAL); 2162 strnvisx(serial_number, sizeof(serial_number), id->atap_serial, 2163 20, VIS_TRIM|VIS_SAFE|VIS_OCTAL); 2164 strnvisx(firmware_revision, sizeof(firmware_revision), 2165 id->atap_revision, 8, VIS_TRIM|VIS_SAFE|VIS_OCTAL); 2166 sa.sa_inqbuf.vendor = model; 2167 sa.sa_inqbuf.product = serial_number; 2168 sa.sa_inqbuf.revision = firmware_revision; 2169 2170 /* 2171 * Determine the operating mode capabilities of the device. 2172 */ 2173 if ((id->atap_config & ATAPI_CFG_CMD_MASK) == ATAPI_CFG_CMD_16) 2174 periph->periph_cap |= PERIPH_CAP_CMD16; 2175 /* XXX This is gross. */ 2176 periph->periph_cap |= (id->atap_config & ATAPI_CFG_DRQ_MASK); 2177 2178 drvp->drv_softc = atapi_probe_device(sc, target, periph, &sa); 2179 2180 if (drvp->drv_softc) 2181 ata_probe_caps(drvp); 2182 else { 2183 s = splbio(); 2184 drvp->drive_type = ATA_DRIVET_NONE; 2185 splx(s); 2186 } 2187 } else { 2188 AHCIDEBUG_PRINT(("ahci_atapi_get_params: ATAPI_IDENTIFY_DEVICE " 2189 "failed for drive %s:%d:%d\n", 2190 AHCINAME(ahcic), chp->ch_channel, target), DEBUG_PROBE); 2191 s = splbio(); 2192 drvp->drive_type = ATA_DRIVET_NONE; 2193 splx(s); 2194 } 2195 } 2196 #endif /* NATAPIBUS */ 2197
Indexes created Fri Oct 17 00:09:41 GMT 2025