ahci_generic.c revision 203376
1/*- 2 * Copyright (c) 2009 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: head/sys/dev/ahci/ahci.c 203376 2010-02-02 11:09:28Z mav $"); 29 30#include <sys/param.h> 31#include <sys/module.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/ata.h> 35#include <sys/bus.h> 36#include <sys/endian.h> 37#include <sys/malloc.h> 38#include <sys/lock.h> 39#include <sys/mutex.h> 40#include <sys/sema.h> 41#include <sys/taskqueue.h> 42#include <vm/uma.h> 43#include <machine/stdarg.h> 44#include <machine/resource.h> 45#include <machine/bus.h> 46#include <sys/rman.h> 47#include <dev/pci/pcivar.h> 48#include <dev/pci/pcireg.h> 49#include "ahci.h" 50 51#include <cam/cam.h> 52#include <cam/cam_ccb.h> 53#include <cam/cam_sim.h> 54#include <cam/cam_xpt_sim.h> 55#include <cam/cam_debug.h> 56 57/* local prototypes */ 58static int ahci_setup_interrupt(device_t dev); 59static void ahci_intr(void *data); 60static void ahci_intr_one(void *data); 61static int ahci_suspend(device_t dev); 62static int ahci_resume(device_t dev); 63static int ahci_ch_suspend(device_t dev); 64static int ahci_ch_resume(device_t dev); 65static void ahci_ch_pm(void *arg); 66static void ahci_ch_intr_locked(void *data); 67static void ahci_ch_intr(void *data); 68static int ahci_ctlr_reset(device_t dev); 69static void ahci_begin_transaction(device_t dev, union ccb *ccb); 70static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 71static void ahci_execute_transaction(struct ahci_slot *slot); 72static void ahci_timeout(struct ahci_slot *slot); 73static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 74static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 75static void ahci_dmainit(device_t dev); 76static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 77static void ahci_dmafini(device_t dev); 78static void ahci_slotsalloc(device_t dev); 79static void ahci_slotsfree(device_t dev); 80static void ahci_reset(device_t dev); 81static void ahci_start(device_t dev, int fbs); 82static void ahci_stop(device_t dev); 83static void ahci_clo(device_t dev); 84static void ahci_start_fr(device_t dev); 85static void ahci_stop_fr(device_t dev); 86 87static int ahci_sata_connect(struct ahci_channel *ch); 88static int ahci_sata_phy_reset(device_t dev); 89static int ahci_wait_ready(device_t dev, int t); 90 91static void ahci_issue_read_log(device_t dev); 92static void ahci_process_read_log(device_t dev, union ccb *ccb); 93 94static void ahciaction(struct cam_sim *sim, union ccb *ccb); 95static void ahcipoll(struct cam_sim *sim); 96 97MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 98 99static struct { 100 uint32_t id; 101 uint8_t rev; 102 const char *name; 103 int quirks; 104#define AHCI_Q_NOFORCE 1 105#define AHCI_Q_NOPMP 2 106#define AHCI_Q_NONCQ 4 107#define AHCI_Q_1CH 8 108#define AHCI_Q_2CH 16 109#define AHCI_Q_4CH 32 110#define AHCI_Q_EDGEIS 64 111#define AHCI_Q_SATA2 128 112#define AHCI_Q_NOBSYRES 256 113} ahci_ids[] = { 114 {0x43801002, 0x00, "ATI IXP600", 0}, 115 {0x43901002, 0x00, "ATI IXP700", 0}, 116 {0x43911002, 0x00, "ATI IXP700", 0}, 117 {0x43921002, 0x00, "ATI IXP700", 0}, 118 {0x43931002, 0x00, "ATI IXP700", 0}, 119 {0x43941002, 0x00, "ATI IXP800", 0}, 120 {0x43951002, 0x00, "ATI IXP800", 0}, 121 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 122 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 123 {0x26818086, 0x00, "Intel ESB2", 0}, 124 {0x26828086, 0x00, "Intel ESB2", 0}, 125 {0x26838086, 0x00, "Intel ESB2", 0}, 126 {0x27c18086, 0x00, "Intel ICH7", 0}, 127 {0x27c38086, 0x00, "Intel ICH7", 0}, 128 {0x27c58086, 0x00, "Intel ICH7M", 0}, 129 {0x27c68086, 0x00, "Intel ICH7M", 0}, 130 {0x28218086, 0x00, "Intel ICH8", 0}, 131 {0x28228086, 0x00, "Intel ICH8", 0}, 132 {0x28248086, 0x00, "Intel ICH8", 0}, 133 {0x28298086, 0x00, "Intel ICH8M", 0}, 134 {0x282a8086, 0x00, "Intel ICH8M", 0}, 135 {0x29228086, 0x00, "Intel ICH9", 0}, 136 {0x29238086, 0x00, "Intel ICH9", 0}, 137 {0x29248086, 0x00, "Intel ICH9", 0}, 138 {0x29258086, 0x00, "Intel ICH9", 0}, 139 {0x29278086, 0x00, "Intel ICH9", 0}, 140 {0x29298086, 0x00, "Intel ICH9M", 0}, 141 {0x292a8086, 0x00, "Intel ICH9M", 0}, 142 {0x292b8086, 0x00, "Intel ICH9M", 0}, 143 {0x292c8086, 0x00, "Intel ICH9M", 0}, 144 {0x292f8086, 0x00, "Intel ICH9M", 0}, 145 {0x294d8086, 0x00, "Intel ICH9", 0}, 146 {0x294e8086, 0x00, "Intel ICH9M", 0}, 147 {0x3a058086, 0x00, "Intel ICH10", 0}, 148 {0x3a228086, 0x00, "Intel ICH10", 0}, 149 {0x3a258086, 0x00, "Intel ICH10", 0}, 150 {0x3b228086, 0x00, "Intel PCH", 0}, 151 {0x3b238086, 0x00, "Intel PCH", 0}, 152 {0x3b248086, 0x00, "Intel PCH", 0}, 153 {0x3b258086, 0x00, "Intel PCH", 0}, 154 {0x3b298086, 0x00, "Intel PCH", 0}, 155 {0x3b2b8086, 0x00, "Intel PCH", 0}, 156 {0x3b2c8086, 0x00, "Intel PCH", 0}, 157 {0x3b2f8086, 0x00, "Intel PCH", 0}, 158 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 159 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 160 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 161 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 162 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 163 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE|AHCI_Q_1CH|AHCI_Q_EDGEIS}, 164 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE|AHCI_Q_2CH|AHCI_Q_EDGEIS}, 165 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 166 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 167 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES}, 168 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 169 {0x044c10de, 0x00, "NVIDIA MCP65", 0}, 170 {0x044d10de, 0x00, "NVIDIA MCP65", 0}, 171 {0x044e10de, 0x00, "NVIDIA MCP65", 0}, 172 {0x044f10de, 0x00, "NVIDIA MCP65", 0}, 173 {0x045c10de, 0x00, "NVIDIA MCP65", 0}, 174 {0x045d10de, 0x00, "NVIDIA MCP65", 0}, 175 {0x045e10de, 0x00, "NVIDIA MCP65", 0}, 176 {0x045f10de, 0x00, "NVIDIA MCP65", 0}, 177 {0x055010de, 0x00, "NVIDIA MCP67", 0}, 178 {0x055110de, 0x00, "NVIDIA MCP67", 0}, 179 {0x055210de, 0x00, "NVIDIA MCP67", 0}, 180 {0x055310de, 0x00, "NVIDIA MCP67", 0}, 181 {0x055410de, 0x00, "NVIDIA MCP67", 0}, 182 {0x055510de, 0x00, "NVIDIA MCP67", 0}, 183 {0x055610de, 0x00, "NVIDIA MCP67", 0}, 184 {0x055710de, 0x00, "NVIDIA MCP67", 0}, 185 {0x055810de, 0x00, "NVIDIA MCP67", 0}, 186 {0x055910de, 0x00, "NVIDIA MCP67", 0}, 187 {0x055A10de, 0x00, "NVIDIA MCP67", 0}, 188 {0x055B10de, 0x00, "NVIDIA MCP67", 0}, 189 {0x058410de, 0x00, "NVIDIA MCP67", 0}, 190 {0x07f010de, 0x00, "NVIDIA MCP73", 0}, 191 {0x07f110de, 0x00, "NVIDIA MCP73", 0}, 192 {0x07f210de, 0x00, "NVIDIA MCP73", 0}, 193 {0x07f310de, 0x00, "NVIDIA MCP73", 0}, 194 {0x07f410de, 0x00, "NVIDIA MCP73", 0}, 195 {0x07f510de, 0x00, "NVIDIA MCP73", 0}, 196 {0x07f610de, 0x00, "NVIDIA MCP73", 0}, 197 {0x07f710de, 0x00, "NVIDIA MCP73", 0}, 198 {0x07f810de, 0x00, "NVIDIA MCP73", 0}, 199 {0x07f910de, 0x00, "NVIDIA MCP73", 0}, 200 {0x07fa10de, 0x00, "NVIDIA MCP73", 0}, 201 {0x07fb10de, 0x00, "NVIDIA MCP73", 0}, 202 {0x0ad010de, 0x00, "NVIDIA MCP77", 0}, 203 {0x0ad110de, 0x00, "NVIDIA MCP77", 0}, 204 {0x0ad210de, 0x00, "NVIDIA MCP77", 0}, 205 {0x0ad310de, 0x00, "NVIDIA MCP77", 0}, 206 {0x0ad410de, 0x00, "NVIDIA MCP77", 0}, 207 {0x0ad510de, 0x00, "NVIDIA MCP77", 0}, 208 {0x0ad610de, 0x00, "NVIDIA MCP77", 0}, 209 {0x0ad710de, 0x00, "NVIDIA MCP77", 0}, 210 {0x0ad810de, 0x00, "NVIDIA MCP77", 0}, 211 {0x0ad910de, 0x00, "NVIDIA MCP77", 0}, 212 {0x0ada10de, 0x00, "NVIDIA MCP77", 0}, 213 {0x0adb10de, 0x00, "NVIDIA MCP77", 0}, 214 {0x0ab410de, 0x00, "NVIDIA MCP79", 0}, 215 {0x0ab510de, 0x00, "NVIDIA MCP79", 0}, 216 {0x0ab610de, 0x00, "NVIDIA MCP79", 0}, 217 {0x0ab710de, 0x00, "NVIDIA MCP79", 0}, 218 {0x0ab810de, 0x00, "NVIDIA MCP79", 0}, 219 {0x0ab910de, 0x00, "NVIDIA MCP79", 0}, 220 {0x0aba10de, 0x00, "NVIDIA MCP79", 0}, 221 {0x0abb10de, 0x00, "NVIDIA MCP79", 0}, 222 {0x0abc10de, 0x00, "NVIDIA MCP79", 0}, 223 {0x0abd10de, 0x00, "NVIDIA MCP79", 0}, 224 {0x0abe10de, 0x00, "NVIDIA MCP79", 0}, 225 {0x0abf10de, 0x00, "NVIDIA MCP79", 0}, 226 {0x0d8410de, 0x00, "NVIDIA MCP89", 0}, 227 {0x0d8510de, 0x00, "NVIDIA MCP89", 0}, 228 {0x0d8610de, 0x00, "NVIDIA MCP89", 0}, 229 {0x0d8710de, 0x00, "NVIDIA MCP89", 0}, 230 {0x0d8810de, 0x00, "NVIDIA MCP89", 0}, 231 {0x0d8910de, 0x00, "NVIDIA MCP89", 0}, 232 {0x0d8a10de, 0x00, "NVIDIA MCP89", 0}, 233 {0x0d8b10de, 0x00, "NVIDIA MCP89", 0}, 234 {0x0d8c10de, 0x00, "NVIDIA MCP89", 0}, 235 {0x0d8d10de, 0x00, "NVIDIA MCP89", 0}, 236 {0x0d8e10de, 0x00, "NVIDIA MCP89", 0}, 237 {0x0d8f10de, 0x00, "NVIDIA MCP89", 0}, 238 {0x33491106, 0x00, "VIA VT8251", 0}, 239 {0x62871106, 0x00, "VIA VT8251", 0}, 240 {0x11841039, 0x00, "SiS 966", 0}, 241 {0x11851039, 0x00, "SiS 968", 0}, 242 {0x01861039, 0x00, "SiS 968", 0}, 243 {0x00000000, 0x00, NULL, 0} 244}; 245 246static int 247ahci_probe(device_t dev) 248{ 249 char buf[64]; 250 int i, valid = 0; 251 uint32_t devid = pci_get_devid(dev); 252 uint8_t revid = pci_get_revid(dev); 253 254 /* Is this a possible AHCI candidate? */ 255 if (pci_get_class(dev) == PCIC_STORAGE && 256 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 257 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 258 valid = 1; 259 /* Is this a known AHCI chip? */ 260 for (i = 0; ahci_ids[i].id != 0; i++) { 261 if (ahci_ids[i].id == devid && 262 ahci_ids[i].rev <= revid && 263 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 264 /* Do not attach JMicrons with single PCI function. */ 265 if (pci_get_vendor(dev) == 0x197b && 266 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 267 return (ENXIO); 268 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 269 ahci_ids[i].name); 270 device_set_desc_copy(dev, buf); 271 return (BUS_PROBE_VENDOR); 272 } 273 } 274 if (!valid) 275 return (ENXIO); 276 device_set_desc_copy(dev, "AHCI SATA controller"); 277 return (BUS_PROBE_VENDOR); 278} 279 280static int 281ahci_ata_probe(device_t dev) 282{ 283 char buf[64]; 284 int i; 285 uint32_t devid = pci_get_devid(dev); 286 uint8_t revid = pci_get_revid(dev); 287 288 if ((intptr_t)device_get_ivars(dev) >= 0) 289 return (ENXIO); 290 /* Is this a known AHCI chip? */ 291 for (i = 0; ahci_ids[i].id != 0; i++) { 292 if (ahci_ids[i].id == devid && 293 ahci_ids[i].rev <= revid) { 294 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 295 ahci_ids[i].name); 296 device_set_desc_copy(dev, buf); 297 return (BUS_PROBE_VENDOR); 298 } 299 } 300 device_set_desc_copy(dev, "AHCI SATA controller"); 301 return (BUS_PROBE_VENDOR); 302} 303 304static int 305ahci_attach(device_t dev) 306{ 307 struct ahci_controller *ctlr = device_get_softc(dev); 308 device_t child; 309 int error, unit, speed, i; 310 uint32_t devid = pci_get_devid(dev); 311 uint8_t revid = pci_get_revid(dev); 312 u_int32_t version; 313 314 ctlr->dev = dev; 315 i = 0; 316 while (ahci_ids[i].id != 0 && 317 (ahci_ids[i].id != devid || 318 ahci_ids[i].rev > revid)) 319 i++; 320 ctlr->quirks = ahci_ids[i].quirks; 321 resource_int_value(device_get_name(dev), 322 device_get_unit(dev), "ccc", &ctlr->ccc); 323 /* if we have a memory BAR(5) we are likely on an AHCI part */ 324 ctlr->r_rid = PCIR_BAR(5); 325 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 326 &ctlr->r_rid, RF_ACTIVE))) 327 return ENXIO; 328 /* Setup our own memory management for channels. */ 329 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 330 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 331 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 332 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 333 return (error); 334 } 335 if ((error = rman_manage_region(&ctlr->sc_iomem, 336 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 337 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 338 rman_fini(&ctlr->sc_iomem); 339 return (error); 340 } 341 /* Reset controller */ 342 if ((error = ahci_ctlr_reset(dev)) != 0) { 343 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 344 rman_fini(&ctlr->sc_iomem); 345 return (error); 346 }; 347 /* Get the HW capabilities */ 348 version = ATA_INL(ctlr->r_mem, AHCI_VS); 349 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 350 if (version >= 0x00010020) 351 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 352 if (ctlr->caps & AHCI_CAP_EMS) 353 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 354 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 355 if (ctlr->quirks & AHCI_Q_1CH) { 356 ctlr->caps &= ~AHCI_CAP_NPMASK; 357 ctlr->ichannels &= 0x01; 358 } 359 if (ctlr->quirks & AHCI_Q_2CH) { 360 ctlr->caps &= ~AHCI_CAP_NPMASK; 361 ctlr->caps |= 1; 362 ctlr->ichannels &= 0x03; 363 } 364 if (ctlr->quirks & AHCI_Q_4CH) { 365 ctlr->caps &= ~AHCI_CAP_NPMASK; 366 ctlr->caps |= 3; 367 ctlr->ichannels &= 0x0f; 368 } 369 ctlr->channels = MAX(flsl(ctlr->ichannels), 370 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 371 if (ctlr->quirks & AHCI_Q_NOPMP) 372 ctlr->caps &= ~AHCI_CAP_SPM; 373 if (ctlr->quirks & AHCI_Q_NONCQ) 374 ctlr->caps &= ~AHCI_CAP_SNCQ; 375 /* Setup interrupts. */ 376 if (ahci_setup_interrupt(dev)) { 377 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 378 rman_fini(&ctlr->sc_iomem); 379 return ENXIO; 380 } 381 /* Announce HW capabilities. */ 382 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 383 device_printf(dev, 384 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 385 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 386 ((version >> 4) & 0xf0) + (version & 0x0f), 387 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 388 ((speed == 1) ? "1.5":((speed == 2) ? "3": 389 ((speed == 3) ? "6":"?"))), 390 (ctlr->caps & AHCI_CAP_SPM) ? 391 "supported" : "not supported", 392 (ctlr->caps & AHCI_CAP_FBSS) ? 393 " with FBS" : ""); 394 if (bootverbose) { 395 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 396 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 397 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 398 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 399 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 400 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 401 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 402 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 403 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 404 ((speed == 1) ? "1.5":((speed == 2) ? "3": 405 ((speed == 3) ? "6":"?")))); 406 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 407 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 408 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 409 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 410 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 411 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 412 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 413 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 414 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 415 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 416 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 417 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 418 } 419 if (bootverbose && version >= 0x00010020) { 420 device_printf(dev, "Caps2:%s%s%s\n", 421 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 422 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 423 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 424 } 425 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 426 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 427 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 428 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 429 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 430 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 431 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 432 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 433 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 434 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 435 } 436 /* Attach all channels on this controller */ 437 for (unit = 0; unit < ctlr->channels; unit++) { 438 if ((ctlr->ichannels & (1 << unit)) == 0) 439 continue; 440 child = device_add_child(dev, "ahcich", -1); 441 if (child == NULL) 442 device_printf(dev, "failed to add channel device\n"); 443 else 444 device_set_ivars(child, (void *)(intptr_t)unit); 445 } 446 bus_generic_attach(dev); 447 return 0; 448} 449 450static int 451ahci_detach(device_t dev) 452{ 453 struct ahci_controller *ctlr = device_get_softc(dev); 454 device_t *children; 455 int nchildren, i; 456 457 /* Detach & delete all children */ 458 if (!device_get_children(dev, &children, &nchildren)) { 459 for (i = 0; i < nchildren; i++) 460 device_delete_child(dev, children[i]); 461 free(children, M_TEMP); 462 } 463 /* Free interrupts. */ 464 for (i = 0; i < ctlr->numirqs; i++) { 465 if (ctlr->irqs[i].r_irq) { 466 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 467 ctlr->irqs[i].handle); 468 bus_release_resource(dev, SYS_RES_IRQ, 469 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 470 } 471 } 472 pci_release_msi(dev); 473 /* Free memory. */ 474 rman_fini(&ctlr->sc_iomem); 475 if (ctlr->r_mem) 476 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 477 return (0); 478} 479 480static int 481ahci_ctlr_reset(device_t dev) 482{ 483 struct ahci_controller *ctlr = device_get_softc(dev); 484 int timeout; 485 486 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 487 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 488 pci_write_config(dev, 0x92, 0x01, 1); 489 /* Enable AHCI mode */ 490 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 491 /* Reset AHCI controller */ 492 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 493 for (timeout = 1000; timeout > 0; timeout--) { 494 DELAY(1000); 495 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 496 break; 497 } 498 if (timeout == 0) { 499 device_printf(dev, "AHCI controller reset failure\n"); 500 return ENXIO; 501 } 502 /* Reenable AHCI mode */ 503 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 504 /* Clear interrupts */ 505 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 506 /* Configure CCC */ 507 if (ctlr->ccc) { 508 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 509 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 510 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 511 (4 << AHCI_CCCC_CC_SHIFT) | 512 AHCI_CCCC_EN); 513 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 514 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 515 if (bootverbose) { 516 device_printf(dev, 517 "CCC with %dms/4cmd enabled on vector %d\n", 518 ctlr->ccc, ctlr->cccv); 519 } 520 } 521 /* Enable AHCI interrupts */ 522 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 523 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 524 return (0); 525} 526 527static int 528ahci_suspend(device_t dev) 529{ 530 struct ahci_controller *ctlr = device_get_softc(dev); 531 532 bus_generic_suspend(dev); 533 /* Disable interupts, so the state change(s) doesn't trigger */ 534 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 535 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 536 return 0; 537} 538 539static int 540ahci_resume(device_t dev) 541{ 542 int res; 543 544 if ((res = ahci_ctlr_reset(dev)) != 0) 545 return (res); 546 return (bus_generic_resume(dev)); 547} 548 549static int 550ahci_setup_interrupt(device_t dev) 551{ 552 struct ahci_controller *ctlr = device_get_softc(dev); 553 int i, msi = 1; 554 555 /* Process hints. */ 556 resource_int_value(device_get_name(dev), 557 device_get_unit(dev), "msi", &msi); 558 if (msi < 0) 559 msi = 0; 560 else if (msi == 1) 561 msi = min(1, pci_msi_count(dev)); 562 else if (msi > 1) 563 msi = pci_msi_count(dev); 564 /* Allocate MSI if needed/present. */ 565 if (msi && pci_alloc_msi(dev, &msi) == 0) { 566 ctlr->numirqs = msi; 567 } else { 568 msi = 0; 569 ctlr->numirqs = 1; 570 } 571 /* Check for single MSI vector fallback. */ 572 if (ctlr->numirqs > 1 && 573 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 574 device_printf(dev, "Falling back to one MSI\n"); 575 ctlr->numirqs = 1; 576 } 577 /* Allocate all IRQs. */ 578 for (i = 0; i < ctlr->numirqs; i++) { 579 ctlr->irqs[i].ctlr = ctlr; 580 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 581 if (ctlr->numirqs == 1 || i >= ctlr->channels || 582 (ctlr->ccc && i == ctlr->cccv)) 583 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 584 else if (i == ctlr->numirqs - 1) 585 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 586 else 587 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 588 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 589 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 590 device_printf(dev, "unable to map interrupt\n"); 591 return ENXIO; 592 } 593 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 594 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 595 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 596 /* SOS XXX release r_irq */ 597 device_printf(dev, "unable to setup interrupt\n"); 598 return ENXIO; 599 } 600 if (ctlr->numirqs > 1) { 601 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 602 ctlr->irqs[i].handle, 603 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 604 "ch%d" : "%d", i); 605 } 606 } 607 return (0); 608} 609 610/* 611 * Common case interrupt handler. 612 */ 613static void 614ahci_intr(void *data) 615{ 616 struct ahci_controller_irq *irq = data; 617 struct ahci_controller *ctlr = irq->ctlr; 618 u_int32_t is; 619 void *arg; 620 int unit; 621 622 if (irq->mode == AHCI_IRQ_MODE_ALL) { 623 unit = 0; 624 if (ctlr->ccc) 625 is = ctlr->ichannels; 626 else 627 is = ATA_INL(ctlr->r_mem, AHCI_IS); 628 } else { /* AHCI_IRQ_MODE_AFTER */ 629 unit = irq->r_irq_rid - 1; 630 is = ATA_INL(ctlr->r_mem, AHCI_IS); 631 } 632 /* Some controllers have edge triggered IS. */ 633 if (ctlr->quirks & AHCI_Q_EDGEIS) 634 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 635 for (; unit < ctlr->channels; unit++) { 636 if ((is & (1 << unit)) != 0 && 637 (arg = ctlr->interrupt[unit].argument)) { 638 ctlr->interrupt[unit].function(arg); 639 } 640 } 641 /* AHCI declares level triggered IS. */ 642 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 643 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 644} 645 646/* 647 * Simplified interrupt handler for multivector MSI mode. 648 */ 649static void 650ahci_intr_one(void *data) 651{ 652 struct ahci_controller_irq *irq = data; 653 struct ahci_controller *ctlr = irq->ctlr; 654 void *arg; 655 int unit; 656 657 unit = irq->r_irq_rid - 1; 658 /* Some controllers have edge triggered IS. */ 659 if (ctlr->quirks & AHCI_Q_EDGEIS) 660 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 661 if ((arg = ctlr->interrupt[unit].argument)) 662 ctlr->interrupt[unit].function(arg); 663 /* AHCI declares level triggered IS. */ 664 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 665 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 666} 667 668static struct resource * 669ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 670 u_long start, u_long end, u_long count, u_int flags) 671{ 672 struct ahci_controller *ctlr = device_get_softc(dev); 673 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 674 struct resource *res = NULL; 675 int offset = AHCI_OFFSET + (unit << 7); 676 long st; 677 678 switch (type) { 679 case SYS_RES_MEMORY: 680 st = rman_get_start(ctlr->r_mem); 681 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 682 st + offset + 127, 128, RF_ACTIVE, child); 683 if (res) { 684 bus_space_handle_t bsh; 685 bus_space_tag_t bst; 686 bsh = rman_get_bushandle(ctlr->r_mem); 687 bst = rman_get_bustag(ctlr->r_mem); 688 bus_space_subregion(bst, bsh, offset, 128, &bsh); 689 rman_set_bushandle(res, bsh); 690 rman_set_bustag(res, bst); 691 } 692 break; 693 case SYS_RES_IRQ: 694 if (*rid == ATA_IRQ_RID) 695 res = ctlr->irqs[0].r_irq; 696 break; 697 } 698 return (res); 699} 700 701static int 702ahci_release_resource(device_t dev, device_t child, int type, int rid, 703 struct resource *r) 704{ 705 706 switch (type) { 707 case SYS_RES_MEMORY: 708 rman_release_resource(r); 709 return (0); 710 case SYS_RES_IRQ: 711 if (rid != ATA_IRQ_RID) 712 return ENOENT; 713 return (0); 714 } 715 return (EINVAL); 716} 717 718static int 719ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 720 int flags, driver_filter_t *filter, driver_intr_t *function, 721 void *argument, void **cookiep) 722{ 723 struct ahci_controller *ctlr = device_get_softc(dev); 724 int unit = (intptr_t)device_get_ivars(child); 725 726 if (filter != NULL) { 727 printf("ahci.c: we cannot use a filter here\n"); 728 return (EINVAL); 729 } 730 ctlr->interrupt[unit].function = function; 731 ctlr->interrupt[unit].argument = argument; 732 return (0); 733} 734 735static int 736ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 737 void *cookie) 738{ 739 struct ahci_controller *ctlr = device_get_softc(dev); 740 int unit = (intptr_t)device_get_ivars(child); 741 742 ctlr->interrupt[unit].function = NULL; 743 ctlr->interrupt[unit].argument = NULL; 744 return (0); 745} 746 747static int 748ahci_print_child(device_t dev, device_t child) 749{ 750 int retval; 751 752 retval = bus_print_child_header(dev, child); 753 retval += printf(" at channel %d", 754 (int)(intptr_t)device_get_ivars(child)); 755 retval += bus_print_child_footer(dev, child); 756 757 return (retval); 758} 759 760devclass_t ahci_devclass; 761static device_method_t ahci_methods[] = { 762 DEVMETHOD(device_probe, ahci_probe), 763 DEVMETHOD(device_attach, ahci_attach), 764 DEVMETHOD(device_detach, ahci_detach), 765 DEVMETHOD(device_suspend, ahci_suspend), 766 DEVMETHOD(device_resume, ahci_resume), 767 DEVMETHOD(bus_print_child, ahci_print_child), 768 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 769 DEVMETHOD(bus_release_resource, ahci_release_resource), 770 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 771 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 772 { 0, 0 } 773}; 774static driver_t ahci_driver = { 775 "ahci", 776 ahci_methods, 777 sizeof(struct ahci_controller) 778}; 779DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 780static device_method_t ahci_ata_methods[] = { 781 DEVMETHOD(device_probe, ahci_ata_probe), 782 DEVMETHOD(device_attach, ahci_attach), 783 DEVMETHOD(device_detach, ahci_detach), 784 DEVMETHOD(device_suspend, ahci_suspend), 785 DEVMETHOD(device_resume, ahci_resume), 786 DEVMETHOD(bus_print_child, ahci_print_child), 787 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 788 DEVMETHOD(bus_release_resource, ahci_release_resource), 789 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 790 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 791 { 0, 0 } 792}; 793static driver_t ahci_ata_driver = { 794 "ahci", 795 ahci_ata_methods, 796 sizeof(struct ahci_controller) 797}; 798DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 799MODULE_VERSION(ahci, 1); 800MODULE_DEPEND(ahci, cam, 1, 1, 1); 801 802static int 803ahci_ch_probe(device_t dev) 804{ 805 806 device_set_desc_copy(dev, "AHCI channel"); 807 return (0); 808} 809 810static int 811ahci_ch_attach(device_t dev) 812{ 813 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 814 struct ahci_channel *ch = device_get_softc(dev); 815 struct cam_devq *devq; 816 int rid, error, i, sata_rev = 0; 817 u_int32_t version; 818 819 ch->dev = dev; 820 ch->unit = (intptr_t)device_get_ivars(dev); 821 ch->caps = ctlr->caps; 822 ch->caps2 = ctlr->caps2; 823 ch->quirks = ctlr->quirks; 824 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 825 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 826 resource_int_value(device_get_name(dev), 827 device_get_unit(dev), "pm_level", &ch->pm_level); 828 if (ch->pm_level > 3) 829 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 830 /* Limit speed for my onboard JMicron external port. 831 * It is not eSATA really. */ 832 if (pci_get_devid(ctlr->dev) == 0x2363197b && 833 pci_get_subvendor(ctlr->dev) == 0x1043 && 834 pci_get_subdevice(ctlr->dev) == 0x81e4 && 835 ch->unit == 0) 836 sata_rev = 1; 837 if (ch->quirks & AHCI_Q_SATA2) 838 sata_rev = 2; 839 resource_int_value(device_get_name(dev), 840 device_get_unit(dev), "sata_rev", &sata_rev); 841 for (i = 0; i < 16; i++) { 842 ch->user[i].revision = sata_rev; 843 ch->user[i].mode = 0; 844 ch->user[i].bytecount = 8192; 845 ch->user[i].tags = ch->numslots; 846 ch->curr[i] = ch->user[i]; 847 } 848 rid = ch->unit; 849 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 850 &rid, RF_ACTIVE))) 851 return (ENXIO); 852 ahci_dmainit(dev); 853 ahci_slotsalloc(dev); 854 ahci_ch_resume(dev); 855 mtx_lock(&ch->mtx); 856 rid = ATA_IRQ_RID; 857 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 858 &rid, RF_SHAREABLE | RF_ACTIVE))) { 859 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 860 device_printf(dev, "Unable to map interrupt\n"); 861 return (ENXIO); 862 } 863 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 864 ahci_ch_intr_locked, dev, &ch->ih))) { 865 device_printf(dev, "Unable to setup interrupt\n"); 866 error = ENXIO; 867 goto err1; 868 } 869 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 870 version = ATA_INL(ctlr->r_mem, AHCI_VS); 871 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 872 ch->chcaps |= AHCI_P_CMD_FBSCP; 873 if (bootverbose) { 874 device_printf(dev, "Caps:%s%s%s%s%s\n", 875 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 876 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 877 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 878 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 879 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 880 } 881 /* Create the device queue for our SIM. */ 882 devq = cam_simq_alloc(ch->numslots); 883 if (devq == NULL) { 884 device_printf(dev, "Unable to allocate simq\n"); 885 error = ENOMEM; 886 goto err1; 887 } 888 /* Construct SIM entry */ 889 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 890 device_get_unit(dev), &ch->mtx, 891 min(2, ch->numslots), 892 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 893 devq); 894 if (ch->sim == NULL) { 895 device_printf(dev, "unable to allocate sim\n"); 896 error = ENOMEM; 897 goto err2; 898 } 899 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 900 device_printf(dev, "unable to register xpt bus\n"); 901 error = ENXIO; 902 goto err2; 903 } 904 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 905 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 906 device_printf(dev, "unable to create path\n"); 907 error = ENXIO; 908 goto err3; 909 } 910 if (ch->pm_level > 3) { 911 callout_reset(&ch->pm_timer, 912 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 913 ahci_ch_pm, dev); 914 } 915 mtx_unlock(&ch->mtx); 916 return (0); 917 918err3: 919 xpt_bus_deregister(cam_sim_path(ch->sim)); 920err2: 921 cam_sim_free(ch->sim, /*free_devq*/TRUE); 922err1: 923 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 924 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 925 mtx_unlock(&ch->mtx); 926 return (error); 927} 928 929static int 930ahci_ch_detach(device_t dev) 931{ 932 struct ahci_channel *ch = device_get_softc(dev); 933 934 mtx_lock(&ch->mtx); 935 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 936 xpt_free_path(ch->path); 937 xpt_bus_deregister(cam_sim_path(ch->sim)); 938 cam_sim_free(ch->sim, /*free_devq*/TRUE); 939 mtx_unlock(&ch->mtx); 940 941 if (ch->pm_level > 3) 942 callout_drain(&ch->pm_timer); 943 bus_teardown_intr(dev, ch->r_irq, ch->ih); 944 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 945 946 ahci_ch_suspend(dev); 947 ahci_slotsfree(dev); 948 ahci_dmafini(dev); 949 950 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 951 mtx_destroy(&ch->mtx); 952 return (0); 953} 954 955static int 956ahci_ch_suspend(device_t dev) 957{ 958 struct ahci_channel *ch = device_get_softc(dev); 959 960 /* Disable port interrupts. */ 961 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 962 /* Reset command register. */ 963 ahci_stop(dev); 964 ahci_stop_fr(dev); 965 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 966 /* Allow everything, including partial and slumber modes. */ 967 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 968 /* Request slumber mode transition and give some time to get there. */ 969 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 970 DELAY(100); 971 /* Disable PHY. */ 972 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 973 return (0); 974} 975 976static int 977ahci_ch_resume(device_t dev) 978{ 979 struct ahci_channel *ch = device_get_softc(dev); 980 uint64_t work; 981 982 /* Disable port interrupts */ 983 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 984 /* Setup work areas */ 985 work = ch->dma.work_bus + AHCI_CL_OFFSET; 986 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 987 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 988 work = ch->dma.rfis_bus; 989 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 990 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 991 /* Activate the channel and power/spin up device */ 992 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 993 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 994 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 995 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 996 ahci_start_fr(dev); 997 ahci_start(dev, 1); 998 return (0); 999} 1000 1001devclass_t ahcich_devclass; 1002static device_method_t ahcich_methods[] = { 1003 DEVMETHOD(device_probe, ahci_ch_probe), 1004 DEVMETHOD(device_attach, ahci_ch_attach), 1005 DEVMETHOD(device_detach, ahci_ch_detach), 1006 DEVMETHOD(device_suspend, ahci_ch_suspend), 1007 DEVMETHOD(device_resume, ahci_ch_resume), 1008 { 0, 0 } 1009}; 1010static driver_t ahcich_driver = { 1011 "ahcich", 1012 ahcich_methods, 1013 sizeof(struct ahci_channel) 1014}; 1015DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1016 1017struct ahci_dc_cb_args { 1018 bus_addr_t maddr; 1019 int error; 1020}; 1021 1022static void 1023ahci_dmainit(device_t dev) 1024{ 1025 struct ahci_channel *ch = device_get_softc(dev); 1026 struct ahci_dc_cb_args dcba; 1027 size_t rfsize; 1028 1029 if (ch->caps & AHCI_CAP_64BIT) 1030 ch->dma.max_address = BUS_SPACE_MAXADDR; 1031 else 1032 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1033 /* Command area. */ 1034 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1035 ch->dma.max_address, BUS_SPACE_MAXADDR, 1036 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1037 0, NULL, NULL, &ch->dma.work_tag)) 1038 goto error; 1039 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1040 &ch->dma.work_map)) 1041 goto error; 1042 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1043 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1044 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1045 goto error; 1046 } 1047 ch->dma.work_bus = dcba.maddr; 1048 /* FIS receive area. */ 1049 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1050 rfsize = 4096; 1051 else 1052 rfsize = 256; 1053 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1054 ch->dma.max_address, BUS_SPACE_MAXADDR, 1055 NULL, NULL, rfsize, 1, rfsize, 1056 0, NULL, NULL, &ch->dma.rfis_tag)) 1057 goto error; 1058 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1059 &ch->dma.rfis_map)) 1060 goto error; 1061 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1062 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1063 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1064 goto error; 1065 } 1066 ch->dma.rfis_bus = dcba.maddr; 1067 /* Data area. */ 1068 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1069 ch->dma.max_address, BUS_SPACE_MAXADDR, 1070 NULL, NULL, 1071 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1072 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1073 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1074 goto error; 1075 } 1076 return; 1077 1078error: 1079 device_printf(dev, "WARNING - DMA initialization failed\n"); 1080 ahci_dmafini(dev); 1081} 1082 1083static void 1084ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1085{ 1086 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1087 1088 if (!(dcba->error = error)) 1089 dcba->maddr = segs[0].ds_addr; 1090} 1091 1092static void 1093ahci_dmafini(device_t dev) 1094{ 1095 struct ahci_channel *ch = device_get_softc(dev); 1096 1097 if (ch->dma.data_tag) { 1098 bus_dma_tag_destroy(ch->dma.data_tag); 1099 ch->dma.data_tag = NULL; 1100 } 1101 if (ch->dma.rfis_bus) { 1102 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1103 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1104 ch->dma.rfis_bus = 0; 1105 ch->dma.rfis_map = NULL; 1106 ch->dma.rfis = NULL; 1107 } 1108 if (ch->dma.work_bus) { 1109 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1110 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1111 ch->dma.work_bus = 0; 1112 ch->dma.work_map = NULL; 1113 ch->dma.work = NULL; 1114 } 1115 if (ch->dma.work_tag) { 1116 bus_dma_tag_destroy(ch->dma.work_tag); 1117 ch->dma.work_tag = NULL; 1118 } 1119} 1120 1121static void 1122ahci_slotsalloc(device_t dev) 1123{ 1124 struct ahci_channel *ch = device_get_softc(dev); 1125 int i; 1126 1127 /* Alloc and setup command/dma slots */ 1128 bzero(ch->slot, sizeof(ch->slot)); 1129 for (i = 0; i < ch->numslots; i++) { 1130 struct ahci_slot *slot = &ch->slot[i]; 1131 1132 slot->dev = dev; 1133 slot->slot = i; 1134 slot->state = AHCI_SLOT_EMPTY; 1135 slot->ccb = NULL; 1136 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1137 1138 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1139 device_printf(ch->dev, "FAILURE - create data_map\n"); 1140 } 1141} 1142 1143static void 1144ahci_slotsfree(device_t dev) 1145{ 1146 struct ahci_channel *ch = device_get_softc(dev); 1147 int i; 1148 1149 /* Free all dma slots */ 1150 for (i = 0; i < ch->numslots; i++) { 1151 struct ahci_slot *slot = &ch->slot[i]; 1152 1153 callout_drain(&slot->timeout); 1154 if (slot->dma.data_map) { 1155 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1156 slot->dma.data_map = NULL; 1157 } 1158 } 1159} 1160 1161static void 1162ahci_phy_check_events(device_t dev, u_int32_t serr) 1163{ 1164 struct ahci_channel *ch = device_get_softc(dev); 1165 1166 if ((serr & ATA_SE_PHY_CHANGED) && (ch->pm_level == 0)) { 1167 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1168 union ccb *ccb; 1169 1170 if (bootverbose) { 1171 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1172 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1173 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 1174 device_printf(dev, "CONNECT requested\n"); 1175 } else 1176 device_printf(dev, "DISCONNECT requested\n"); 1177 } 1178 ahci_reset(dev); 1179 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1180 return; 1181 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1182 cam_sim_path(ch->sim), 1183 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1184 xpt_free_ccb(ccb); 1185 return; 1186 } 1187 xpt_rescan(ccb); 1188 } 1189} 1190 1191static void 1192ahci_notify_events(device_t dev, u_int32_t status) 1193{ 1194 struct ahci_channel *ch = device_get_softc(dev); 1195 struct cam_path *dpath; 1196 int i; 1197 1198 if (ch->caps & AHCI_CAP_SSNTF) 1199 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1200 if (bootverbose) 1201 device_printf(dev, "SNTF 0x%04x\n", status); 1202 for (i = 0; i < 16; i++) { 1203 if ((status & (1 << i)) == 0) 1204 continue; 1205 if (xpt_create_path(&dpath, NULL, 1206 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1207 xpt_async(AC_SCSI_AEN, dpath, NULL); 1208 xpt_free_path(dpath); 1209 } 1210 } 1211} 1212 1213static void 1214ahci_ch_intr_locked(void *data) 1215{ 1216 device_t dev = (device_t)data; 1217 struct ahci_channel *ch = device_get_softc(dev); 1218 1219 mtx_lock(&ch->mtx); 1220 ahci_ch_intr(data); 1221 mtx_unlock(&ch->mtx); 1222} 1223 1224static void 1225ahci_ch_pm(void *arg) 1226{ 1227 device_t dev = (device_t)arg; 1228 struct ahci_channel *ch = device_get_softc(dev); 1229 uint32_t work; 1230 1231 if (ch->numrslots != 0) 1232 return; 1233 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1234 if (ch->pm_level == 4) 1235 work |= AHCI_P_CMD_PARTIAL; 1236 else 1237 work |= AHCI_P_CMD_SLUMBER; 1238 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1239} 1240 1241static void 1242ahci_ch_intr(void *data) 1243{ 1244 device_t dev = (device_t)data; 1245 struct ahci_channel *ch = device_get_softc(dev); 1246 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1247 enum ahci_err_type et; 1248 int i, ccs, port; 1249 1250 /* Read and clear interrupt statuses. */ 1251 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1252 if (istatus == 0) 1253 return; 1254 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1255 /* Read command statuses. */ 1256 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1257 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1258 if (istatus & AHCI_P_IX_SDB) { 1259 if (ch->caps & AHCI_CAP_SSNTF) 1260 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1261 else if (ch->fbs_enabled) { 1262 u_int8_t *fis = ch->dma.rfis + 0x58; 1263 1264 for (i = 0; i < 16; i++) { 1265 if (fis[1] & 0x80) { 1266 fis[1] &= 0x7f; 1267 sntf |= 1 << i; 1268 } 1269 fis += 256; 1270 } 1271 } else { 1272 u_int8_t *fis = ch->dma.rfis + 0x58; 1273 1274 if (fis[1] & 0x80) 1275 sntf = (1 << (fis[1] & 0x0f)); 1276 } 1277 } 1278 /* Process PHY events */ 1279 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1280 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1281 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1282 if (serr) { 1283 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1284 ahci_phy_check_events(dev, serr); 1285 } 1286 } 1287 /* Process command errors */ 1288 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1289 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1290 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1291 >> AHCI_P_CMD_CCS_SHIFT; 1292//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1293// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1294// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1295 port = -1; 1296 if (ch->fbs_enabled) { 1297 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1298 if (fbs & AHCI_P_FBS_SDE) { 1299 port = (fbs & AHCI_P_FBS_DWE) 1300 >> AHCI_P_FBS_DWE_SHIFT; 1301 } else { 1302 for (i = 0; i < 16; i++) { 1303 if (ch->numrslotspd[i] == 0) 1304 continue; 1305 if (port == -1) 1306 port = i; 1307 else if (port != i) { 1308 port = -2; 1309 break; 1310 } 1311 } 1312 } 1313 } 1314 err = ch->rslots & (cstatus | sstatus); 1315 } else { 1316 ccs = 0; 1317 err = 0; 1318 port = -1; 1319 } 1320 /* Complete all successfull commands. */ 1321 ok = ch->rslots & ~(cstatus | sstatus); 1322 for (i = 0; i < ch->numslots; i++) { 1323 if ((ok >> i) & 1) 1324 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1325 } 1326 /* On error, complete the rest of commands with error statuses. */ 1327 if (err) { 1328 if (ch->frozen) { 1329 union ccb *fccb = ch->frozen; 1330 ch->frozen = NULL; 1331 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1332 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1333 xpt_freeze_devq(fccb->ccb_h.path, 1); 1334 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1335 } 1336 xpt_done(fccb); 1337 } 1338 for (i = 0; i < ch->numslots; i++) { 1339 /* XXX: reqests in loading state. */ 1340 if (((err >> i) & 1) == 0) 1341 continue; 1342 if (port >= 0 && 1343 ch->slot[i].ccb->ccb_h.target_id != port) 1344 continue; 1345 if (istatus & AHCI_P_IX_TFE) { 1346 if (port != -2) { 1347 /* Task File Error */ 1348 if (ch->numtslotspd[ 1349 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1350 /* Untagged operation. */ 1351 if (i == ccs) 1352 et = AHCI_ERR_TFE; 1353 else 1354 et = AHCI_ERR_INNOCENT; 1355 } else { 1356 /* Tagged operation. */ 1357 et = AHCI_ERR_NCQ; 1358 } 1359 } else { 1360 et = AHCI_ERR_TFE; 1361 ch->fatalerr = 1; 1362 } 1363 } else if (istatus & AHCI_P_IX_IF) { 1364 if (ch->numtslots == 0 && i != ccs && port != -2) 1365 et = AHCI_ERR_INNOCENT; 1366 else 1367 et = AHCI_ERR_SATA; 1368 } else 1369 et = AHCI_ERR_INVALID; 1370 ahci_end_transaction(&ch->slot[i], et); 1371 } 1372 /* 1373 * We can't reinit port if there are some other 1374 * commands active, use resume to complete them. 1375 */ 1376 if (ch->rslots != 0) 1377 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1378 } 1379 /* Process NOTIFY events */ 1380 if (sntf) 1381 ahci_notify_events(dev, sntf); 1382} 1383 1384/* Must be called with channel locked. */ 1385static int 1386ahci_check_collision(device_t dev, union ccb *ccb) 1387{ 1388 struct ahci_channel *ch = device_get_softc(dev); 1389 int t = ccb->ccb_h.target_id; 1390 1391 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1392 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1393 /* Tagged command while we have no supported tag free. */ 1394 if (((~ch->oslots) & (0xffffffff >> (32 - 1395 ch->curr[t].tags))) == 0) 1396 return (1); 1397 /* If we have FBS */ 1398 if (ch->fbs_enabled) { 1399 /* Tagged command while untagged are active. */ 1400 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1401 return (1); 1402 } else { 1403 /* Tagged command while untagged are active. */ 1404 if (ch->numrslots != 0 && ch->numtslots == 0) 1405 return (1); 1406 /* Tagged command while tagged to other target is active. */ 1407 if (ch->numtslots != 0 && 1408 ch->taggedtarget != ccb->ccb_h.target_id) 1409 return (1); 1410 } 1411 } else { 1412 /* If we have FBS */ 1413 if (ch->fbs_enabled) { 1414 /* Untagged command while tagged are active. */ 1415 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1416 return (1); 1417 } else { 1418 /* Untagged command while tagged are active. */ 1419 if (ch->numrslots != 0 && ch->numtslots != 0) 1420 return (1); 1421 } 1422 } 1423 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1424 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1425 /* Atomic command while anything active. */ 1426 if (ch->numrslots != 0) 1427 return (1); 1428 } 1429 /* We have some atomic command running. */ 1430 if (ch->aslots != 0) 1431 return (1); 1432 return (0); 1433} 1434 1435/* Must be called with channel locked. */ 1436static void 1437ahci_begin_transaction(device_t dev, union ccb *ccb) 1438{ 1439 struct ahci_channel *ch = device_get_softc(dev); 1440 struct ahci_slot *slot; 1441 int tag, tags; 1442 1443 /* Choose empty slot. */ 1444 tags = ch->numslots; 1445 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1446 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1447 tags = ch->curr[ccb->ccb_h.target_id].tags; 1448 tag = ch->lastslot; 1449 while (1) { 1450 if (tag >= tags) 1451 tag = 0; 1452 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1453 break; 1454 tag++; 1455 }; 1456 ch->lastslot = tag; 1457 /* Occupy chosen slot. */ 1458 slot = &ch->slot[tag]; 1459 slot->ccb = ccb; 1460 /* Stop PM timer. */ 1461 if (ch->numrslots == 0 && ch->pm_level > 3) 1462 callout_stop(&ch->pm_timer); 1463 /* Update channel stats. */ 1464 ch->oslots |= (1 << slot->slot); 1465 ch->numrslots++; 1466 ch->numrslotspd[ccb->ccb_h.target_id]++; 1467 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1468 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1469 ch->numtslots++; 1470 ch->numtslotspd[ccb->ccb_h.target_id]++; 1471 ch->taggedtarget = ccb->ccb_h.target_id; 1472 } 1473 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1474 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1475 ch->aslots |= (1 << slot->slot); 1476 slot->dma.nsegs = 0; 1477 /* If request moves data, setup and load SG list */ 1478 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1479 void *buf; 1480 bus_size_t size; 1481 1482 slot->state = AHCI_SLOT_LOADING; 1483 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1484 buf = ccb->ataio.data_ptr; 1485 size = ccb->ataio.dxfer_len; 1486 } else { 1487 buf = ccb->csio.data_ptr; 1488 size = ccb->csio.dxfer_len; 1489 } 1490 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1491 buf, size, ahci_dmasetprd, slot, 0); 1492 } else 1493 ahci_execute_transaction(slot); 1494} 1495 1496/* Locked by busdma engine. */ 1497static void 1498ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1499{ 1500 struct ahci_slot *slot = arg; 1501 struct ahci_channel *ch = device_get_softc(slot->dev); 1502 struct ahci_cmd_tab *ctp; 1503 struct ahci_dma_prd *prd; 1504 int i; 1505 1506 if (error) { 1507 device_printf(slot->dev, "DMA load error\n"); 1508 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1509 return; 1510 } 1511 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1512 /* Get a piece of the workspace for this request */ 1513 ctp = (struct ahci_cmd_tab *) 1514 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1515 /* Fill S/G table */ 1516 prd = &ctp->prd_tab[0]; 1517 for (i = 0; i < nsegs; i++) { 1518 prd[i].dba = htole64(segs[i].ds_addr); 1519 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1520 } 1521 slot->dma.nsegs = nsegs; 1522 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1523 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1524 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1525 ahci_execute_transaction(slot); 1526} 1527 1528/* Must be called with channel locked. */ 1529static void 1530ahci_execute_transaction(struct ahci_slot *slot) 1531{ 1532 device_t dev = slot->dev; 1533 struct ahci_channel *ch = device_get_softc(dev); 1534 struct ahci_cmd_tab *ctp; 1535 struct ahci_cmd_list *clp; 1536 union ccb *ccb = slot->ccb; 1537 int port = ccb->ccb_h.target_id & 0x0f; 1538 int fis_size, i; 1539 uint8_t *fis = ch->dma.rfis + 0x40; 1540 uint8_t val; 1541 1542 /* Get a piece of the workspace for this request */ 1543 ctp = (struct ahci_cmd_tab *) 1544 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1545 /* Setup the FIS for this request */ 1546 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1547 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1548 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1549 return; 1550 } 1551 /* Setup the command list entry */ 1552 clp = (struct ahci_cmd_list *) 1553 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1554 clp->prd_length = slot->dma.nsegs; 1555 clp->cmd_flags = (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1556 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1557 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1558 (fis_size / sizeof(u_int32_t)) | 1559 (port << 12); 1560 /* Special handling for Soft Reset command. */ 1561 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1562 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1563 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1564 /* Kick controller into sane state */ 1565 ahci_stop(dev); 1566 ahci_clo(dev); 1567 ahci_start(dev, 0); 1568 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1569 } else { 1570 /* Prepare FIS receive area for check. */ 1571 for (i = 0; i < 20; i++) 1572 fis[i] = 0xff; 1573 } 1574 } 1575 clp->bytecount = 0; 1576 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1577 (AHCI_CT_SIZE * slot->slot)); 1578 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1579 BUS_DMASYNC_PREWRITE); 1580 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1581 BUS_DMASYNC_PREREAD); 1582 /* Set ACTIVE bit for NCQ commands. */ 1583 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1584 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1585 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1586 } 1587 /* If FBS is enabled, set PMP port. */ 1588 if (ch->fbs_enabled) { 1589 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1590 (port << AHCI_P_FBS_DEV_SHIFT)); 1591 } 1592 /* Issue command to the controller. */ 1593 slot->state = AHCI_SLOT_RUNNING; 1594 ch->rslots |= (1 << slot->slot); 1595 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1596 /* Device reset commands doesn't interrupt. Poll them. */ 1597 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1598 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || 1599 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL))) { 1600 int count, timeout = ccb->ccb_h.timeout; 1601 enum ahci_err_type et = AHCI_ERR_NONE; 1602 1603 for (count = 0; count < timeout; count++) { 1604 DELAY(1000); 1605 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1606 break; 1607 if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) { 1608 device_printf(ch->dev, 1609 "Poll error on slot %d, TFD: %04x\n", 1610 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1611 et = AHCI_ERR_TFE; 1612 break; 1613 } 1614 /* Workaround for ATI SB600/SB700 chipsets. */ 1615 if (ccb->ccb_h.target_id == 15 && 1616 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1617 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1618 et = AHCI_ERR_TIMEOUT; 1619 break; 1620 } 1621 } 1622 if (timeout && (count >= timeout)) { 1623 device_printf(ch->dev, 1624 "Poll timeout on slot %d\n", slot->slot); 1625 device_printf(dev, "is %08x cs %08x ss %08x " 1626 "rs %08x tfd %02x serr %08x\n", 1627 ATA_INL(ch->r_mem, AHCI_P_IS), 1628 ATA_INL(ch->r_mem, AHCI_P_CI), 1629 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1630 ATA_INL(ch->r_mem, AHCI_P_TFD), 1631 ATA_INL(ch->r_mem, AHCI_P_SERR)); 1632 et = AHCI_ERR_TIMEOUT; 1633 } 1634 /* Marvell controllers do not wait for readyness. */ 1635 if ((ch->quirks & AHCI_Q_NOBSYRES) && 1636 (ccb->ccb_h.func_code == XPT_ATA_IO) && 1637 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1638 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1639 while ((val = fis[2]) & (ATA_S_BUSY | ATA_S_DRQ)) { 1640 DELAY(1000); 1641 if (count++ >= timeout) { 1642 device_printf(dev, "device is not " 1643 "ready after soft-reset: " 1644 "tfd = %08x\n", val); 1645 et = AHCI_ERR_TIMEOUT; 1646 break; 1647 } 1648 } 1649 } 1650 ahci_end_transaction(slot, et); 1651 /* Kick controller into sane state and enable FBS. */ 1652 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1653 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1654 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1655 ahci_stop(ch->dev); 1656 ahci_start(ch->dev, 1); 1657 } 1658 return; 1659 } 1660 /* Start command execution timeout */ 1661 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1662 (timeout_t*)ahci_timeout, slot); 1663 return; 1664} 1665 1666/* Locked by callout mechanism. */ 1667static void 1668ahci_timeout(struct ahci_slot *slot) 1669{ 1670 device_t dev = slot->dev; 1671 struct ahci_channel *ch = device_get_softc(dev); 1672 uint32_t sstatus; 1673 int ccs; 1674 int i; 1675 1676 /* Check for stale timeout. */ 1677 if (slot->state < AHCI_SLOT_RUNNING) 1678 return; 1679 1680 /* Check if slot was not being executed last time we checked. */ 1681 if (slot->state < AHCI_SLOT_EXECUTING) { 1682 /* Check if slot started executing. */ 1683 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1684 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1685 >> AHCI_P_CMD_CCS_SHIFT; 1686 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1687 ch->fbs_enabled) 1688 slot->state = AHCI_SLOT_EXECUTING; 1689 1690 callout_reset(&slot->timeout, 1691 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1692 (timeout_t*)ahci_timeout, slot); 1693 return; 1694 } 1695 1696 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1697 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x\n", 1698 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1699 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1700 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR)); 1701 1702 ch->fatalerr = 1; 1703 /* Handle frozen command. */ 1704 if (ch->frozen) { 1705 union ccb *fccb = ch->frozen; 1706 ch->frozen = NULL; 1707 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1708 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1709 xpt_freeze_devq(fccb->ccb_h.path, 1); 1710 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1711 } 1712 xpt_done(fccb); 1713 } 1714 /* Handle command with timeout. */ 1715 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1716 /* Handle the rest of commands. */ 1717 for (i = 0; i < ch->numslots; i++) { 1718 /* Do we have a running request on slot? */ 1719 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1720 continue; 1721 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1722 } 1723} 1724 1725/* Must be called with channel locked. */ 1726static void 1727ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1728{ 1729 device_t dev = slot->dev; 1730 struct ahci_channel *ch = device_get_softc(dev); 1731 union ccb *ccb = slot->ccb; 1732 1733 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1734 BUS_DMASYNC_POSTWRITE); 1735 /* Read result registers to the result struct 1736 * May be incorrect if several commands finished same time, 1737 * so read only when sure or have to. 1738 */ 1739 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1740 struct ata_res *res = &ccb->ataio.res; 1741 1742 if ((et == AHCI_ERR_TFE) || 1743 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1744 u_int8_t *fis = ch->dma.rfis + 0x40; 1745 1746 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1747 BUS_DMASYNC_POSTREAD); 1748 if (ch->fbs_enabled) { 1749 fis += ccb->ccb_h.target_id * 256; 1750 res->status = fis[2]; 1751 res->error = fis[3]; 1752 } else { 1753 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 1754 1755 res->status = tfd; 1756 res->error = tfd >> 8; 1757 } 1758 res->lba_low = fis[4]; 1759 res->lba_mid = fis[5]; 1760 res->lba_high = fis[6]; 1761 res->device = fis[7]; 1762 res->lba_low_exp = fis[8]; 1763 res->lba_mid_exp = fis[9]; 1764 res->lba_high_exp = fis[10]; 1765 res->sector_count = fis[12]; 1766 res->sector_count_exp = fis[13]; 1767 } else 1768 bzero(res, sizeof(*res)); 1769 } 1770 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1771 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1772 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1773 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1774 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1775 } 1776 if (et != AHCI_ERR_NONE) 1777 ch->eslots |= (1 << slot->slot); 1778 /* In case of error, freeze device for proper recovery. */ 1779 if ((et != AHCI_ERR_NONE) && (!ch->readlog) && 1780 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1781 xpt_freeze_devq(ccb->ccb_h.path, 1); 1782 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1783 } 1784 /* Set proper result status. */ 1785 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1786 switch (et) { 1787 case AHCI_ERR_NONE: 1788 ccb->ccb_h.status |= CAM_REQ_CMP; 1789 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1790 ccb->csio.scsi_status = SCSI_STATUS_OK; 1791 break; 1792 case AHCI_ERR_INVALID: 1793 ch->fatalerr = 1; 1794 ccb->ccb_h.status |= CAM_REQ_INVALID; 1795 break; 1796 case AHCI_ERR_INNOCENT: 1797 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1798 break; 1799 case AHCI_ERR_TFE: 1800 case AHCI_ERR_NCQ: 1801 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1802 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1803 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1804 } else { 1805 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1806 } 1807 break; 1808 case AHCI_ERR_SATA: 1809 ch->fatalerr = 1; 1810 if (!ch->readlog) { 1811 xpt_freeze_simq(ch->sim, 1); 1812 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1813 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1814 } 1815 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1816 break; 1817 case AHCI_ERR_TIMEOUT: 1818 /* Do no treat soft-reset timeout as fatal here. */ 1819 if (ccb->ccb_h.func_code != XPT_ATA_IO || 1820 !(ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) 1821 ch->fatalerr = 1; 1822 if (!ch->readlog) { 1823 xpt_freeze_simq(ch->sim, 1); 1824 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1825 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1826 } 1827 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1828 break; 1829 default: 1830 ch->fatalerr = 1; 1831 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1832 } 1833 /* Free slot. */ 1834 ch->oslots &= ~(1 << slot->slot); 1835 ch->rslots &= ~(1 << slot->slot); 1836 ch->aslots &= ~(1 << slot->slot); 1837 slot->state = AHCI_SLOT_EMPTY; 1838 slot->ccb = NULL; 1839 /* Update channel stats. */ 1840 ch->numrslots--; 1841 ch->numrslotspd[ccb->ccb_h.target_id]--; 1842 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1843 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1844 ch->numtslots--; 1845 ch->numtslotspd[ccb->ccb_h.target_id]--; 1846 } 1847 /* If it was first request of reset sequence and there is no error, 1848 * proceed to second request. */ 1849 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1850 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1851 (ccb->ataio.cmd.control & ATA_A_RESET) && 1852 et == AHCI_ERR_NONE) { 1853 ccb->ataio.cmd.control &= ~ATA_A_RESET; 1854 ahci_begin_transaction(dev, ccb); 1855 return; 1856 } 1857 /* If it was our READ LOG command - process it. */ 1858 if (ch->readlog) { 1859 ahci_process_read_log(dev, ccb); 1860 /* If it was NCQ command error, put result on hold. */ 1861 } else if (et == AHCI_ERR_NCQ) { 1862 ch->hold[slot->slot] = ccb; 1863 ch->numhslots++; 1864 } else 1865 xpt_done(ccb); 1866 /* Unfreeze frozen command. */ 1867 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 1868 union ccb *fccb = ch->frozen; 1869 ch->frozen = NULL; 1870 ahci_begin_transaction(dev, fccb); 1871 xpt_release_simq(ch->sim, TRUE); 1872 } 1873 /* If we have no other active commands, ... */ 1874 if (ch->rslots == 0) { 1875 /* if there was fatal error - reset port. */ 1876 if (ch->fatalerr) { 1877 ahci_reset(dev); 1878 } else { 1879 /* if we have slots in error, we can reinit port. */ 1880 if (ch->eslots != 0) { 1881 ahci_stop(dev); 1882 ahci_start(dev, 1); 1883 } 1884 /* if there commands on hold, we can do READ LOG. */ 1885 if (!ch->readlog && ch->numhslots) 1886 ahci_issue_read_log(dev); 1887 } 1888 } 1889 /* Start PM timer. */ 1890 if (ch->numrslots == 0 && ch->pm_level > 3) { 1891 callout_schedule(&ch->pm_timer, 1892 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 1893 } 1894} 1895 1896static void 1897ahci_issue_read_log(device_t dev) 1898{ 1899 struct ahci_channel *ch = device_get_softc(dev); 1900 union ccb *ccb; 1901 struct ccb_ataio *ataio; 1902 int i; 1903 1904 ch->readlog = 1; 1905 /* Find some holden command. */ 1906 for (i = 0; i < ch->numslots; i++) { 1907 if (ch->hold[i]) 1908 break; 1909 } 1910 ccb = xpt_alloc_ccb_nowait(); 1911 if (ccb == NULL) { 1912 device_printf(dev, "Unable allocate READ LOG command"); 1913 return; /* XXX */ 1914 } 1915 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 1916 ccb->ccb_h.func_code = XPT_ATA_IO; 1917 ccb->ccb_h.flags = CAM_DIR_IN; 1918 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 1919 ataio = &ccb->ataio; 1920 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 1921 if (ataio->data_ptr == NULL) { 1922 device_printf(dev, "Unable allocate memory for READ LOG command"); 1923 return; /* XXX */ 1924 } 1925 ataio->dxfer_len = 512; 1926 bzero(&ataio->cmd, sizeof(ataio->cmd)); 1927 ataio->cmd.flags = CAM_ATAIO_48BIT; 1928 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 1929 ataio->cmd.sector_count = 1; 1930 ataio->cmd.sector_count_exp = 0; 1931 ataio->cmd.lba_low = 0x10; 1932 ataio->cmd.lba_mid = 0; 1933 ataio->cmd.lba_mid_exp = 0; 1934 /* Freeze SIM while doing READ LOG EXT. */ 1935 xpt_freeze_simq(ch->sim, 1); 1936 ahci_begin_transaction(dev, ccb); 1937} 1938 1939static void 1940ahci_process_read_log(device_t dev, union ccb *ccb) 1941{ 1942 struct ahci_channel *ch = device_get_softc(dev); 1943 uint8_t *data; 1944 struct ata_res *res; 1945 int i; 1946 1947 ch->readlog = 0; 1948 1949 data = ccb->ataio.data_ptr; 1950 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 1951 (data[0] & 0x80) == 0) { 1952 for (i = 0; i < ch->numslots; i++) { 1953 if (!ch->hold[i]) 1954 continue; 1955 if ((data[0] & 0x1F) == i) { 1956 res = &ch->hold[i]->ataio.res; 1957 res->status = data[2]; 1958 res->error = data[3]; 1959 res->lba_low = data[4]; 1960 res->lba_mid = data[5]; 1961 res->lba_high = data[6]; 1962 res->device = data[7]; 1963 res->lba_low_exp = data[8]; 1964 res->lba_mid_exp = data[9]; 1965 res->lba_high_exp = data[10]; 1966 res->sector_count = data[12]; 1967 res->sector_count_exp = data[13]; 1968 } else { 1969 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 1970 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 1971 } 1972 xpt_done(ch->hold[i]); 1973 ch->hold[i] = NULL; 1974 ch->numhslots--; 1975 } 1976 } else { 1977 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1978 device_printf(dev, "Error while READ LOG EXT\n"); 1979 else if ((data[0] & 0x80) == 0) { 1980 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 1981 } 1982 for (i = 0; i < ch->numslots; i++) { 1983 if (!ch->hold[i]) 1984 continue; 1985 xpt_done(ch->hold[i]); 1986 ch->hold[i] = NULL; 1987 ch->numhslots--; 1988 } 1989 } 1990 free(ccb->ataio.data_ptr, M_AHCI); 1991 xpt_free_ccb(ccb); 1992 xpt_release_simq(ch->sim, TRUE); 1993} 1994 1995static void 1996ahci_start(device_t dev, int fbs) 1997{ 1998 struct ahci_channel *ch = device_get_softc(dev); 1999 u_int32_t cmd; 2000 2001 /* Clear SATA error register */ 2002 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2003 /* Clear any interrupts pending on this channel */ 2004 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2005 /* Configure FIS-based switching if supported. */ 2006 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2007 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2008 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2009 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2010 } 2011 /* Start operations on this channel */ 2012 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2013 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2014 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2015} 2016 2017static void 2018ahci_stop(device_t dev) 2019{ 2020 struct ahci_channel *ch = device_get_softc(dev); 2021 u_int32_t cmd; 2022 int timeout; 2023 2024 /* Kill all activity on this channel */ 2025 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2026 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2027 /* Wait for activity stop. */ 2028 timeout = 0; 2029 do { 2030 DELAY(1000); 2031 if (timeout++ > 1000) { 2032 device_printf(dev, "stopping AHCI engine failed\n"); 2033 break; 2034 } 2035 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2036 ch->eslots = 0; 2037} 2038 2039static void 2040ahci_clo(device_t dev) 2041{ 2042 struct ahci_channel *ch = device_get_softc(dev); 2043 u_int32_t cmd; 2044 int timeout; 2045 2046 /* Issue Command List Override if supported */ 2047 if (ch->caps & AHCI_CAP_SCLO) { 2048 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2049 cmd |= AHCI_P_CMD_CLO; 2050 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2051 timeout = 0; 2052 do { 2053 DELAY(1000); 2054 if (timeout++ > 1000) { 2055 device_printf(dev, "executing CLO failed\n"); 2056 break; 2057 } 2058 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2059 } 2060} 2061 2062static void 2063ahci_stop_fr(device_t dev) 2064{ 2065 struct ahci_channel *ch = device_get_softc(dev); 2066 u_int32_t cmd; 2067 int timeout; 2068 2069 /* Kill all FIS reception on this channel */ 2070 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2071 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2072 /* Wait for FIS reception stop. */ 2073 timeout = 0; 2074 do { 2075 DELAY(1000); 2076 if (timeout++ > 1000) { 2077 device_printf(dev, "stopping AHCI FR engine failed\n"); 2078 break; 2079 } 2080 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2081} 2082 2083static void 2084ahci_start_fr(device_t dev) 2085{ 2086 struct ahci_channel *ch = device_get_softc(dev); 2087 u_int32_t cmd; 2088 2089 /* Start FIS reception on this channel */ 2090 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2091 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2092} 2093 2094static int 2095ahci_wait_ready(device_t dev, int t) 2096{ 2097 struct ahci_channel *ch = device_get_softc(dev); 2098 int timeout = 0; 2099 uint32_t val; 2100 2101 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2102 (ATA_S_BUSY | ATA_S_DRQ)) { 2103 DELAY(1000); 2104 if (timeout++ > t) { 2105 device_printf(dev, "device is not ready (timeout %dms) " 2106 "tfd = %08x\n", t, val); 2107 return (EBUSY); 2108 } 2109 } 2110 if (bootverbose) 2111 device_printf(dev, "ready wait time=%dms\n", timeout); 2112 return (0); 2113} 2114 2115static void 2116ahci_reset(device_t dev) 2117{ 2118 struct ahci_channel *ch = device_get_softc(dev); 2119 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2120 int i; 2121 2122 xpt_freeze_simq(ch->sim, 1); 2123 if (bootverbose) 2124 device_printf(dev, "AHCI reset...\n"); 2125 /* Requeue freezed command. */ 2126 if (ch->frozen) { 2127 union ccb *fccb = ch->frozen; 2128 ch->frozen = NULL; 2129 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2130 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2131 xpt_freeze_devq(fccb->ccb_h.path, 1); 2132 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2133 } 2134 xpt_done(fccb); 2135 } 2136 /* Kill the engine and requeue all running commands. */ 2137 ahci_stop(dev); 2138 for (i = 0; i < ch->numslots; i++) { 2139 /* Do we have a running request on slot? */ 2140 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2141 continue; 2142 /* XXX; Commands in loading state. */ 2143 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2144 } 2145 for (i = 0; i < ch->numslots; i++) { 2146 if (!ch->hold[i]) 2147 continue; 2148 xpt_done(ch->hold[i]); 2149 ch->hold[i] = NULL; 2150 ch->numhslots--; 2151 } 2152 ch->eslots = 0; 2153 ch->fatalerr = 0; 2154 /* Tell the XPT about the event */ 2155 xpt_async(AC_BUS_RESET, ch->path, NULL); 2156 /* Disable port interrupts */ 2157 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2158 /* Reset and reconnect PHY, */ 2159 if (!ahci_sata_phy_reset(dev)) { 2160 if (bootverbose) 2161 device_printf(dev, 2162 "AHCI reset done: phy reset found no device\n"); 2163 ch->devices = 0; 2164 /* Enable wanted port interrupts */ 2165 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2166 (AHCI_P_IX_CPD | AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2167 xpt_release_simq(ch->sim, TRUE); 2168 return; 2169 } 2170 /* Wait for clearing busy status. */ 2171 if (ahci_wait_ready(dev, 15000)) 2172 ahci_clo(dev); 2173 ahci_start(dev, 1); 2174 ch->devices = 1; 2175 /* Enable wanted port interrupts */ 2176 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2177 (AHCI_P_IX_CPD | AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2178 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2179 ((ch->pm_level == 0) ? AHCI_P_IX_PRC | AHCI_P_IX_PC : 0) | 2180 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2181 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2182 if (bootverbose) 2183 device_printf(dev, "AHCI reset done: device found\n"); 2184 xpt_release_simq(ch->sim, TRUE); 2185} 2186 2187static int 2188ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2189{ 2190 struct ahci_channel *ch = device_get_softc(dev); 2191 u_int8_t *fis = &ctp->cfis[0]; 2192 2193 bzero(ctp->cfis, 64); 2194 fis[0] = 0x27; /* host to device */ 2195 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2196 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2197 fis[1] |= 0x80; 2198 fis[2] = ATA_PACKET_CMD; 2199 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2200 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2201 fis[3] = ATA_F_DMA; 2202 else { 2203 fis[5] = ccb->csio.dxfer_len; 2204 fis[6] = ccb->csio.dxfer_len >> 8; 2205 } 2206 fis[7] = ATA_D_LBA; 2207 fis[15] = ATA_A_4BIT; 2208 bzero(ctp->acmd, 32); 2209 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2210 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2211 ctp->acmd, ccb->csio.cdb_len); 2212 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2213 fis[1] |= 0x80; 2214 fis[2] = ccb->ataio.cmd.command; 2215 fis[3] = ccb->ataio.cmd.features; 2216 fis[4] = ccb->ataio.cmd.lba_low; 2217 fis[5] = ccb->ataio.cmd.lba_mid; 2218 fis[6] = ccb->ataio.cmd.lba_high; 2219 fis[7] = ccb->ataio.cmd.device; 2220 fis[8] = ccb->ataio.cmd.lba_low_exp; 2221 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2222 fis[10] = ccb->ataio.cmd.lba_high_exp; 2223 fis[11] = ccb->ataio.cmd.features_exp; 2224 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2225 fis[12] = tag << 3; 2226 fis[13] = 0; 2227 } else { 2228 fis[12] = ccb->ataio.cmd.sector_count; 2229 fis[13] = ccb->ataio.cmd.sector_count_exp; 2230 } 2231 fis[15] = ATA_A_4BIT; 2232 } else { 2233 fis[15] = ccb->ataio.cmd.control; 2234 } 2235 return (20); 2236} 2237 2238static int 2239ahci_sata_connect(struct ahci_channel *ch) 2240{ 2241 u_int32_t status; 2242 int timeout; 2243 2244 /* Wait up to 100ms for "connect well" */ 2245 for (timeout = 0; timeout < 100 ; timeout++) { 2246 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2247 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2248 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2249 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2250 break; 2251 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2252 if (bootverbose) { 2253 device_printf(ch->dev, "SATA offline status=%08x\n", 2254 status); 2255 } 2256 return (0); 2257 } 2258 DELAY(1000); 2259 } 2260 if (timeout >= 100) { 2261 if (bootverbose) { 2262 device_printf(ch->dev, "SATA connect timeout status=%08x\n", 2263 status); 2264 } 2265 return (0); 2266 } 2267 if (bootverbose) { 2268 device_printf(ch->dev, "SATA connect time=%dms status=%08x\n", 2269 timeout, status); 2270 } 2271 /* Clear SATA error register */ 2272 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2273 return (1); 2274} 2275 2276static int 2277ahci_sata_phy_reset(device_t dev) 2278{ 2279 struct ahci_channel *ch = device_get_softc(dev); 2280 int sata_rev; 2281 uint32_t val; 2282 2283 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2284 if (sata_rev == 1) 2285 val = ATA_SC_SPD_SPEED_GEN1; 2286 else if (sata_rev == 2) 2287 val = ATA_SC_SPD_SPEED_GEN2; 2288 else if (sata_rev == 3) 2289 val = ATA_SC_SPD_SPEED_GEN3; 2290 else 2291 val = 0; 2292 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2293 ATA_SC_DET_RESET | val | 2294 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2295 DELAY(5000); 2296 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2297 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2298 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2299 DELAY(5000); 2300 return (ahci_sata_connect(ch)); 2301} 2302 2303static void 2304ahciaction(struct cam_sim *sim, union ccb *ccb) 2305{ 2306 device_t dev; 2307 struct ahci_channel *ch; 2308 2309 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2310 ccb->ccb_h.func_code)); 2311 2312 ch = (struct ahci_channel *)cam_sim_softc(sim); 2313 dev = ch->dev; 2314 switch (ccb->ccb_h.func_code) { 2315 /* Common cases first */ 2316 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2317 case XPT_SCSI_IO: 2318 if (ch->devices == 0) { 2319 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2320 xpt_done(ccb); 2321 break; 2322 } 2323 /* Check for command collision. */ 2324 if (ahci_check_collision(dev, ccb)) { 2325 /* Freeze command. */ 2326 ch->frozen = ccb; 2327 /* We have only one frozen slot, so freeze simq also. */ 2328 xpt_freeze_simq(ch->sim, 1); 2329 return; 2330 } 2331 ahci_begin_transaction(dev, ccb); 2332 break; 2333 case XPT_EN_LUN: /* Enable LUN as a target */ 2334 case XPT_TARGET_IO: /* Execute target I/O request */ 2335 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2336 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2337 case XPT_ABORT: /* Abort the specified CCB */ 2338 /* XXX Implement */ 2339 ccb->ccb_h.status = CAM_REQ_INVALID; 2340 xpt_done(ccb); 2341 break; 2342 case XPT_SET_TRAN_SETTINGS: 2343 { 2344 struct ccb_trans_settings *cts = &ccb->cts; 2345 struct ahci_device *d; 2346 2347 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2348 d = &ch->curr[ccb->ccb_h.target_id]; 2349 else 2350 d = &ch->user[ccb->ccb_h.target_id]; 2351 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2352 d->revision = cts->xport_specific.sata.revision; 2353 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2354 d->mode = cts->xport_specific.sata.mode; 2355 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2356 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2357 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2358 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2359 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2360 ch->pm_present = cts->xport_specific.sata.pm_present; 2361 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2362 d->atapi = cts->xport_specific.sata.atapi; 2363 ccb->ccb_h.status = CAM_REQ_CMP; 2364 xpt_done(ccb); 2365 break; 2366 } 2367 case XPT_GET_TRAN_SETTINGS: 2368 /* Get default/user set transfer settings for the target */ 2369 { 2370 struct ccb_trans_settings *cts = &ccb->cts; 2371 struct ahci_device *d; 2372 uint32_t status; 2373 2374 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2375 d = &ch->curr[ccb->ccb_h.target_id]; 2376 else 2377 d = &ch->user[ccb->ccb_h.target_id]; 2378 cts->protocol = PROTO_ATA; 2379 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2380 cts->transport = XPORT_SATA; 2381 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2382 cts->proto_specific.valid = 0; 2383 cts->xport_specific.sata.valid = 0; 2384 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2385 (ccb->ccb_h.target_id == 15 || 2386 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2387 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2388 if (status & 0x0f0) { 2389 cts->xport_specific.sata.revision = 2390 (status & 0x0f0) >> 4; 2391 cts->xport_specific.sata.valid |= 2392 CTS_SATA_VALID_REVISION; 2393 } 2394 } else { 2395 cts->xport_specific.sata.revision = d->revision; 2396 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2397 } 2398 cts->xport_specific.sata.mode = d->mode; 2399 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2400 cts->xport_specific.sata.bytecount = d->bytecount; 2401 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2402 cts->xport_specific.sata.pm_present = ch->pm_present; 2403 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2404 cts->xport_specific.sata.tags = d->tags; 2405 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2406 cts->xport_specific.sata.atapi = d->atapi; 2407 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2408 ccb->ccb_h.status = CAM_REQ_CMP; 2409 xpt_done(ccb); 2410 break; 2411 } 2412#if 0 2413 case XPT_CALC_GEOMETRY: 2414 { 2415 struct ccb_calc_geometry *ccg; 2416 uint32_t size_mb; 2417 uint32_t secs_per_cylinder; 2418 2419 ccg = &ccb->ccg; 2420 size_mb = ccg->volume_size 2421 / ((1024L * 1024L) / ccg->block_size); 2422 if (size_mb >= 1024 && (aha->extended_trans != 0)) { 2423 if (size_mb >= 2048) { 2424 ccg->heads = 255; 2425 ccg->secs_per_track = 63; 2426 } else { 2427 ccg->heads = 128; 2428 ccg->secs_per_track = 32; 2429 } 2430 } else { 2431 ccg->heads = 64; 2432 ccg->secs_per_track = 32; 2433 } 2434 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2435 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2436 ccb->ccb_h.status = CAM_REQ_CMP; 2437 xpt_done(ccb); 2438 break; 2439 } 2440#endif 2441 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2442 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2443 ahci_reset(dev); 2444 ccb->ccb_h.status = CAM_REQ_CMP; 2445 xpt_done(ccb); 2446 break; 2447 case XPT_TERM_IO: /* Terminate the I/O process */ 2448 /* XXX Implement */ 2449 ccb->ccb_h.status = CAM_REQ_INVALID; 2450 xpt_done(ccb); 2451 break; 2452 case XPT_PATH_INQ: /* Path routing inquiry */ 2453 { 2454 struct ccb_pathinq *cpi = &ccb->cpi; 2455 2456 cpi->version_num = 1; /* XXX??? */ 2457 cpi->hba_inquiry = PI_SDTR_ABLE; 2458 if (ch->caps & AHCI_CAP_SNCQ) 2459 cpi->hba_inquiry |= PI_TAG_ABLE; 2460 if (ch->caps & AHCI_CAP_SPM) 2461 cpi->hba_inquiry |= PI_SATAPM; 2462 cpi->target_sprt = 0; 2463 cpi->hba_misc = PIM_SEQSCAN; 2464 cpi->hba_eng_cnt = 0; 2465 if (ch->caps & AHCI_CAP_SPM) 2466 cpi->max_target = 15; 2467 else 2468 cpi->max_target = 0; 2469 cpi->max_lun = 0; 2470 cpi->initiator_id = 0; 2471 cpi->bus_id = cam_sim_bus(sim); 2472 cpi->base_transfer_speed = 150000; 2473 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2474 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2475 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2476 cpi->unit_number = cam_sim_unit(sim); 2477 cpi->transport = XPORT_SATA; 2478 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2479 cpi->protocol = PROTO_ATA; 2480 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2481 cpi->maxio = MAXPHYS; 2482 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2483 if (pci_get_devid(device_get_parent(dev)) == 0x43801002) 2484 cpi->maxio = min(cpi->maxio, 128 * 512); 2485 cpi->ccb_h.status = CAM_REQ_CMP; 2486 xpt_done(ccb); 2487 break; 2488 } 2489 default: 2490 ccb->ccb_h.status = CAM_REQ_INVALID; 2491 xpt_done(ccb); 2492 break; 2493 } 2494} 2495 2496static void 2497ahcipoll(struct cam_sim *sim) 2498{ 2499 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2500 2501 ahci_ch_intr(ch->dev); 2502} 2503