ahci_generic.c revision 208414
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 208414 2010-05-22 08:30:47Z 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_init(device_t dev); 64static int ahci_ch_deinit(device_t dev); 65static int ahci_ch_suspend(device_t dev); 66static int ahci_ch_resume(device_t dev); 67static void ahci_ch_pm(void *arg); 68static void ahci_ch_intr_locked(void *data); 69static void ahci_ch_intr(void *data); 70static int ahci_ctlr_reset(device_t dev); 71static int ahci_ctlr_setup(device_t dev); 72static void ahci_begin_transaction(device_t dev, union ccb *ccb); 73static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 74static void ahci_execute_transaction(struct ahci_slot *slot); 75static void ahci_timeout(struct ahci_slot *slot); 76static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 77static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 78static void ahci_dmainit(device_t dev); 79static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 80static void ahci_dmafini(device_t dev); 81static void ahci_slotsalloc(device_t dev); 82static void ahci_slotsfree(device_t dev); 83static void ahci_reset(device_t dev); 84static void ahci_start(device_t dev, int fbs); 85static void ahci_stop(device_t dev); 86static void ahci_clo(device_t dev); 87static void ahci_start_fr(device_t dev); 88static void ahci_stop_fr(device_t dev); 89 90static int ahci_sata_connect(struct ahci_channel *ch); 91static int ahci_sata_phy_reset(device_t dev); 92static int ahci_wait_ready(device_t dev, int t); 93 94static void ahci_issue_read_log(device_t dev); 95static void ahci_process_read_log(device_t dev, union ccb *ccb); 96 97static void ahciaction(struct cam_sim *sim, union ccb *ccb); 98static void ahcipoll(struct cam_sim *sim); 99 100MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 101 102static struct { 103 uint32_t id; 104 uint8_t rev; 105 const char *name; 106 int quirks; 107#define AHCI_Q_NOFORCE 1 108#define AHCI_Q_NOPMP 2 109#define AHCI_Q_NONCQ 4 110#define AHCI_Q_1CH 8 111#define AHCI_Q_2CH 16 112#define AHCI_Q_4CH 32 113#define AHCI_Q_EDGEIS 64 114#define AHCI_Q_SATA2 128 115#define AHCI_Q_NOBSYRES 256 116#define AHCI_Q_NOAA 512 117} ahci_ids[] = { 118 {0x43801002, 0x00, "ATI IXP600", 0}, 119 {0x43901002, 0x00, "ATI IXP700", 0}, 120 {0x43911002, 0x00, "ATI IXP700", 0}, 121 {0x43921002, 0x00, "ATI IXP700", 0}, 122 {0x43931002, 0x00, "ATI IXP700", 0}, 123 {0x43941002, 0x00, "ATI IXP800", 0}, 124 {0x43951002, 0x00, "ATI IXP800", 0}, 125 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 126 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 127 {0x26818086, 0x00, "Intel ESB2", 0}, 128 {0x26828086, 0x00, "Intel ESB2", 0}, 129 {0x26838086, 0x00, "Intel ESB2", 0}, 130 {0x27c18086, 0x00, "Intel ICH7", 0}, 131 {0x27c38086, 0x00, "Intel ICH7", 0}, 132 {0x27c58086, 0x00, "Intel ICH7M", 0}, 133 {0x27c68086, 0x00, "Intel ICH7M", 0}, 134 {0x28218086, 0x00, "Intel ICH8", 0}, 135 {0x28228086, 0x00, "Intel ICH8", 0}, 136 {0x28248086, 0x00, "Intel ICH8", 0}, 137 {0x28298086, 0x00, "Intel ICH8M", 0}, 138 {0x282a8086, 0x00, "Intel ICH8M", 0}, 139 {0x29228086, 0x00, "Intel ICH9", 0}, 140 {0x29238086, 0x00, "Intel ICH9", 0}, 141 {0x29248086, 0x00, "Intel ICH9", 0}, 142 {0x29258086, 0x00, "Intel ICH9", 0}, 143 {0x29278086, 0x00, "Intel ICH9", 0}, 144 {0x29298086, 0x00, "Intel ICH9M", 0}, 145 {0x292a8086, 0x00, "Intel ICH9M", 0}, 146 {0x292b8086, 0x00, "Intel ICH9M", 0}, 147 {0x292c8086, 0x00, "Intel ICH9M", 0}, 148 {0x292f8086, 0x00, "Intel ICH9M", 0}, 149 {0x294d8086, 0x00, "Intel ICH9", 0}, 150 {0x294e8086, 0x00, "Intel ICH9M", 0}, 151 {0x3a058086, 0x00, "Intel ICH10", 0}, 152 {0x3a228086, 0x00, "Intel ICH10", 0}, 153 {0x3a258086, 0x00, "Intel ICH10", 0}, 154 {0x3b228086, 0x00, "Intel PCH", 0}, 155 {0x3b238086, 0x00, "Intel PCH", 0}, 156 {0x3b248086, 0x00, "Intel PCH", 0}, 157 {0x3b258086, 0x00, "Intel PCH", 0}, 158 {0x3b298086, 0x00, "Intel PCH", 0}, 159 {0x3b2b8086, 0x00, "Intel PCH", 0}, 160 {0x3b2c8086, 0x00, "Intel PCH", 0}, 161 {0x3b2f8086, 0x00, "Intel PCH", 0}, 162 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 163 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 164 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 165 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 166 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 167 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE|AHCI_Q_1CH|AHCI_Q_EDGEIS}, 168 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE|AHCI_Q_2CH|AHCI_Q_EDGEIS}, 169 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 170 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 171 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES}, 172 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 173 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 174 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 175 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 176 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 177 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 178 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 179 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 180 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 181 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 182 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 183 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 184 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 185 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 186 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 187 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 188 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 189 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 190 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 191 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 192 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 193 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 194 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 195 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 196 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 197 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 198 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 199 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 200 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 201 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 202 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 203 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 204 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 205 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 206 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 207 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 208 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 209 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 210 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 211 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 212 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 213 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 214 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 215 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 216 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 217 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 218 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 219 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 220 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 221 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 222 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 223 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 224 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 225 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 226 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 227 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 228 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 229 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 230 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 231 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 232 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 233 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 234 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 235 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 236 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 237 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 238 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 239 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 240 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 241 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 242 {0x33491106, 0x00, "VIA VT8251", 0}, 243 {0x62871106, 0x00, "VIA VT8251", 0}, 244 {0x11841039, 0x00, "SiS 966", 0}, 245 {0x11851039, 0x00, "SiS 968", 0}, 246 {0x01861039, 0x00, "SiS 968", 0}, 247 {0x00000000, 0x00, NULL, 0} 248}; 249 250static int 251ahci_probe(device_t dev) 252{ 253 char buf[64]; 254 int i, valid = 0; 255 uint32_t devid = pci_get_devid(dev); 256 uint8_t revid = pci_get_revid(dev); 257 258 /* Is this a possible AHCI candidate? */ 259 if (pci_get_class(dev) == PCIC_STORAGE && 260 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 261 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 262 valid = 1; 263 /* Is this a known AHCI chip? */ 264 for (i = 0; ahci_ids[i].id != 0; i++) { 265 if (ahci_ids[i].id == devid && 266 ahci_ids[i].rev <= revid && 267 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 268 /* Do not attach JMicrons with single PCI function. */ 269 if (pci_get_vendor(dev) == 0x197b && 270 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 271 return (ENXIO); 272 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 273 ahci_ids[i].name); 274 device_set_desc_copy(dev, buf); 275 return (BUS_PROBE_VENDOR); 276 } 277 } 278 if (!valid) 279 return (ENXIO); 280 device_set_desc_copy(dev, "AHCI SATA controller"); 281 return (BUS_PROBE_VENDOR); 282} 283 284static int 285ahci_ata_probe(device_t dev) 286{ 287 char buf[64]; 288 int i; 289 uint32_t devid = pci_get_devid(dev); 290 uint8_t revid = pci_get_revid(dev); 291 292 if ((intptr_t)device_get_ivars(dev) >= 0) 293 return (ENXIO); 294 /* Is this a known AHCI chip? */ 295 for (i = 0; ahci_ids[i].id != 0; i++) { 296 if (ahci_ids[i].id == devid && 297 ahci_ids[i].rev <= revid) { 298 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 299 ahci_ids[i].name); 300 device_set_desc_copy(dev, buf); 301 return (BUS_PROBE_VENDOR); 302 } 303 } 304 device_set_desc_copy(dev, "AHCI SATA controller"); 305 return (BUS_PROBE_VENDOR); 306} 307 308static int 309ahci_attach(device_t dev) 310{ 311 struct ahci_controller *ctlr = device_get_softc(dev); 312 device_t child; 313 int error, unit, speed, i; 314 uint32_t devid = pci_get_devid(dev); 315 uint8_t revid = pci_get_revid(dev); 316 u_int32_t version; 317 318 ctlr->dev = dev; 319 i = 0; 320 while (ahci_ids[i].id != 0 && 321 (ahci_ids[i].id != devid || 322 ahci_ids[i].rev > revid)) 323 i++; 324 ctlr->quirks = ahci_ids[i].quirks; 325 resource_int_value(device_get_name(dev), 326 device_get_unit(dev), "ccc", &ctlr->ccc); 327 /* if we have a memory BAR(5) we are likely on an AHCI part */ 328 ctlr->r_rid = PCIR_BAR(5); 329 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 330 &ctlr->r_rid, RF_ACTIVE))) 331 return ENXIO; 332 /* Setup our own memory management for channels. */ 333 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 334 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 335 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 336 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 337 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 338 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 339 return (error); 340 } 341 if ((error = rman_manage_region(&ctlr->sc_iomem, 342 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 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 pci_enable_busmaster(dev); 348 /* Reset controller */ 349 if ((error = ahci_ctlr_reset(dev)) != 0) { 350 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 351 rman_fini(&ctlr->sc_iomem); 352 return (error); 353 }; 354 /* Get the HW capabilities */ 355 version = ATA_INL(ctlr->r_mem, AHCI_VS); 356 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 357 if (version >= 0x00010020) 358 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 359 if (ctlr->caps & AHCI_CAP_EMS) 360 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 361 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 362 if (ctlr->quirks & AHCI_Q_1CH) { 363 ctlr->caps &= ~AHCI_CAP_NPMASK; 364 ctlr->ichannels &= 0x01; 365 } 366 if (ctlr->quirks & AHCI_Q_2CH) { 367 ctlr->caps &= ~AHCI_CAP_NPMASK; 368 ctlr->caps |= 1; 369 ctlr->ichannels &= 0x03; 370 } 371 if (ctlr->quirks & AHCI_Q_4CH) { 372 ctlr->caps &= ~AHCI_CAP_NPMASK; 373 ctlr->caps |= 3; 374 ctlr->ichannels &= 0x0f; 375 } 376 ctlr->channels = MAX(flsl(ctlr->ichannels), 377 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 378 if (ctlr->quirks & AHCI_Q_NOPMP) 379 ctlr->caps &= ~AHCI_CAP_SPM; 380 if (ctlr->quirks & AHCI_Q_NONCQ) 381 ctlr->caps &= ~AHCI_CAP_SNCQ; 382 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 383 ctlr->ccc = 0; 384 ahci_ctlr_setup(dev); 385 /* Setup interrupts. */ 386 if (ahci_setup_interrupt(dev)) { 387 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 388 rman_fini(&ctlr->sc_iomem); 389 return ENXIO; 390 } 391 /* Announce HW capabilities. */ 392 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 393 device_printf(dev, 394 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 395 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 396 ((version >> 4) & 0xf0) + (version & 0x0f), 397 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 398 ((speed == 1) ? "1.5":((speed == 2) ? "3": 399 ((speed == 3) ? "6":"?"))), 400 (ctlr->caps & AHCI_CAP_SPM) ? 401 "supported" : "not supported", 402 (ctlr->caps & AHCI_CAP_FBSS) ? 403 " with FBS" : ""); 404 if (bootverbose) { 405 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 406 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 407 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 408 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 409 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 410 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 411 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 412 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 413 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 414 ((speed == 1) ? "1.5":((speed == 2) ? "3": 415 ((speed == 3) ? "6":"?")))); 416 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 417 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 418 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 419 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 420 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 421 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 422 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 423 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 424 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 425 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 426 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 427 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 428 } 429 if (bootverbose && version >= 0x00010020) { 430 device_printf(dev, "Caps2:%s%s%s\n", 431 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 432 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 433 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 434 } 435 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 436 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 437 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 438 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 439 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 440 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 441 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 442 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 443 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 444 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 445 } 446 /* Attach all channels on this controller */ 447 for (unit = 0; unit < ctlr->channels; unit++) { 448 if ((ctlr->ichannels & (1 << unit)) == 0) 449 continue; 450 child = device_add_child(dev, "ahcich", -1); 451 if (child == NULL) 452 device_printf(dev, "failed to add channel device\n"); 453 else 454 device_set_ivars(child, (void *)(intptr_t)unit); 455 } 456 bus_generic_attach(dev); 457 return 0; 458} 459 460static int 461ahci_detach(device_t dev) 462{ 463 struct ahci_controller *ctlr = device_get_softc(dev); 464 device_t *children; 465 int nchildren, i; 466 467 /* Detach & delete all children */ 468 if (!device_get_children(dev, &children, &nchildren)) { 469 for (i = 0; i < nchildren; i++) 470 device_delete_child(dev, children[i]); 471 free(children, M_TEMP); 472 } 473 /* Free interrupts. */ 474 for (i = 0; i < ctlr->numirqs; i++) { 475 if (ctlr->irqs[i].r_irq) { 476 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 477 ctlr->irqs[i].handle); 478 bus_release_resource(dev, SYS_RES_IRQ, 479 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 480 } 481 } 482 pci_release_msi(dev); 483 /* Free memory. */ 484 rman_fini(&ctlr->sc_iomem); 485 if (ctlr->r_mem) 486 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 487 return (0); 488} 489 490static int 491ahci_ctlr_reset(device_t dev) 492{ 493 struct ahci_controller *ctlr = device_get_softc(dev); 494 int timeout; 495 496 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 497 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 498 pci_write_config(dev, 0x92, 0x01, 1); 499 /* Enable AHCI mode */ 500 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 501 /* Reset AHCI controller */ 502 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 503 for (timeout = 1000; timeout > 0; timeout--) { 504 DELAY(1000); 505 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 506 break; 507 } 508 if (timeout == 0) { 509 device_printf(dev, "AHCI controller reset failure\n"); 510 return ENXIO; 511 } 512 /* Reenable AHCI mode */ 513 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 514 return (0); 515} 516 517static int 518ahci_ctlr_setup(device_t dev) 519{ 520 struct ahci_controller *ctlr = device_get_softc(dev); 521 /* Clear interrupts */ 522 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 523 /* Configure CCC */ 524 if (ctlr->ccc) { 525 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 526 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 527 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 528 (4 << AHCI_CCCC_CC_SHIFT) | 529 AHCI_CCCC_EN); 530 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 531 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 532 if (bootverbose) { 533 device_printf(dev, 534 "CCC with %dms/4cmd enabled on vector %d\n", 535 ctlr->ccc, ctlr->cccv); 536 } 537 } 538 /* Enable AHCI interrupts */ 539 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 540 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 541 return (0); 542} 543 544static int 545ahci_suspend(device_t dev) 546{ 547 struct ahci_controller *ctlr = device_get_softc(dev); 548 549 bus_generic_suspend(dev); 550 /* Disable interupts, so the state change(s) doesn't trigger */ 551 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 552 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 553 return 0; 554} 555 556static int 557ahci_resume(device_t dev) 558{ 559 int res; 560 561 if ((res = ahci_ctlr_reset(dev)) != 0) 562 return (res); 563 ahci_ctlr_setup(dev); 564 return (bus_generic_resume(dev)); 565} 566 567static int 568ahci_setup_interrupt(device_t dev) 569{ 570 struct ahci_controller *ctlr = device_get_softc(dev); 571 int i, msi = 1; 572 573 /* Process hints. */ 574 resource_int_value(device_get_name(dev), 575 device_get_unit(dev), "msi", &msi); 576 if (msi < 0) 577 msi = 0; 578 else if (msi == 1) 579 msi = min(1, pci_msi_count(dev)); 580 else if (msi > 1) 581 msi = pci_msi_count(dev); 582 /* Allocate MSI if needed/present. */ 583 if (msi && pci_alloc_msi(dev, &msi) == 0) { 584 ctlr->numirqs = msi; 585 } else { 586 msi = 0; 587 ctlr->numirqs = 1; 588 } 589 /* Check for single MSI vector fallback. */ 590 if (ctlr->numirqs > 1 && 591 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 592 device_printf(dev, "Falling back to one MSI\n"); 593 ctlr->numirqs = 1; 594 } 595 /* Allocate all IRQs. */ 596 for (i = 0; i < ctlr->numirqs; i++) { 597 ctlr->irqs[i].ctlr = ctlr; 598 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 599 if (ctlr->numirqs == 1 || i >= ctlr->channels || 600 (ctlr->ccc && i == ctlr->cccv)) 601 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 602 else if (i == ctlr->numirqs - 1) 603 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 604 else 605 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 606 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 607 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 608 device_printf(dev, "unable to map interrupt\n"); 609 return ENXIO; 610 } 611 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 612 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 613 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 614 /* SOS XXX release r_irq */ 615 device_printf(dev, "unable to setup interrupt\n"); 616 return ENXIO; 617 } 618 if (ctlr->numirqs > 1) { 619 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 620 ctlr->irqs[i].handle, 621 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 622 "ch%d" : "%d", i); 623 } 624 } 625 return (0); 626} 627 628/* 629 * Common case interrupt handler. 630 */ 631static void 632ahci_intr(void *data) 633{ 634 struct ahci_controller_irq *irq = data; 635 struct ahci_controller *ctlr = irq->ctlr; 636 u_int32_t is, ise = 0; 637 void *arg; 638 int unit; 639 640 if (irq->mode == AHCI_IRQ_MODE_ALL) { 641 unit = 0; 642 if (ctlr->ccc) 643 is = ctlr->ichannels; 644 else 645 is = ATA_INL(ctlr->r_mem, AHCI_IS); 646 } else { /* AHCI_IRQ_MODE_AFTER */ 647 unit = irq->r_irq_rid - 1; 648 is = ATA_INL(ctlr->r_mem, AHCI_IS); 649 } 650 /* CCC interrupt is edge triggered. */ 651 if (ctlr->ccc) 652 ise = 1 << ctlr->cccv; 653 /* Some controllers have edge triggered IS. */ 654 if (ctlr->quirks & AHCI_Q_EDGEIS) 655 ise |= is; 656 if (ise != 0) 657 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 658 for (; unit < ctlr->channels; unit++) { 659 if ((is & (1 << unit)) != 0 && 660 (arg = ctlr->interrupt[unit].argument)) { 661 ctlr->interrupt[unit].function(arg); 662 } 663 } 664 /* AHCI declares level triggered IS. */ 665 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 666 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 667} 668 669/* 670 * Simplified interrupt handler for multivector MSI mode. 671 */ 672static void 673ahci_intr_one(void *data) 674{ 675 struct ahci_controller_irq *irq = data; 676 struct ahci_controller *ctlr = irq->ctlr; 677 void *arg; 678 int unit; 679 680 unit = irq->r_irq_rid - 1; 681 /* Some controllers have edge triggered IS. */ 682 if (ctlr->quirks & AHCI_Q_EDGEIS) 683 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 684 if ((arg = ctlr->interrupt[unit].argument)) 685 ctlr->interrupt[unit].function(arg); 686 /* AHCI declares level triggered IS. */ 687 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 688 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 689} 690 691static struct resource * 692ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 693 u_long start, u_long end, u_long count, u_int flags) 694{ 695 struct ahci_controller *ctlr = device_get_softc(dev); 696 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 697 struct resource *res = NULL; 698 int offset = AHCI_OFFSET + (unit << 7); 699 long st; 700 701 switch (type) { 702 case SYS_RES_MEMORY: 703 st = rman_get_start(ctlr->r_mem); 704 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 705 st + offset + 127, 128, RF_ACTIVE, child); 706 if (res) { 707 bus_space_handle_t bsh; 708 bus_space_tag_t bst; 709 bsh = rman_get_bushandle(ctlr->r_mem); 710 bst = rman_get_bustag(ctlr->r_mem); 711 bus_space_subregion(bst, bsh, offset, 128, &bsh); 712 rman_set_bushandle(res, bsh); 713 rman_set_bustag(res, bst); 714 } 715 break; 716 case SYS_RES_IRQ: 717 if (*rid == ATA_IRQ_RID) 718 res = ctlr->irqs[0].r_irq; 719 break; 720 } 721 return (res); 722} 723 724static int 725ahci_release_resource(device_t dev, device_t child, int type, int rid, 726 struct resource *r) 727{ 728 729 switch (type) { 730 case SYS_RES_MEMORY: 731 rman_release_resource(r); 732 return (0); 733 case SYS_RES_IRQ: 734 if (rid != ATA_IRQ_RID) 735 return ENOENT; 736 return (0); 737 } 738 return (EINVAL); 739} 740 741static int 742ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 743 int flags, driver_filter_t *filter, driver_intr_t *function, 744 void *argument, void **cookiep) 745{ 746 struct ahci_controller *ctlr = device_get_softc(dev); 747 int unit = (intptr_t)device_get_ivars(child); 748 749 if (filter != NULL) { 750 printf("ahci.c: we cannot use a filter here\n"); 751 return (EINVAL); 752 } 753 ctlr->interrupt[unit].function = function; 754 ctlr->interrupt[unit].argument = argument; 755 return (0); 756} 757 758static int 759ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 760 void *cookie) 761{ 762 struct ahci_controller *ctlr = device_get_softc(dev); 763 int unit = (intptr_t)device_get_ivars(child); 764 765 ctlr->interrupt[unit].function = NULL; 766 ctlr->interrupt[unit].argument = NULL; 767 return (0); 768} 769 770static int 771ahci_print_child(device_t dev, device_t child) 772{ 773 int retval; 774 775 retval = bus_print_child_header(dev, child); 776 retval += printf(" at channel %d", 777 (int)(intptr_t)device_get_ivars(child)); 778 retval += bus_print_child_footer(dev, child); 779 780 return (retval); 781} 782 783static int 784ahci_child_location_str(device_t dev, device_t child, char *buf, 785 size_t buflen) 786{ 787 788 snprintf(buf, buflen, "channel=%d", 789 (int)(intptr_t)device_get_ivars(child)); 790 return (0); 791} 792 793devclass_t ahci_devclass; 794static device_method_t ahci_methods[] = { 795 DEVMETHOD(device_probe, ahci_probe), 796 DEVMETHOD(device_attach, ahci_attach), 797 DEVMETHOD(device_detach, ahci_detach), 798 DEVMETHOD(device_suspend, ahci_suspend), 799 DEVMETHOD(device_resume, ahci_resume), 800 DEVMETHOD(bus_print_child, ahci_print_child), 801 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 802 DEVMETHOD(bus_release_resource, ahci_release_resource), 803 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 804 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 805 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 806 { 0, 0 } 807}; 808static driver_t ahci_driver = { 809 "ahci", 810 ahci_methods, 811 sizeof(struct ahci_controller) 812}; 813DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 814static device_method_t ahci_ata_methods[] = { 815 DEVMETHOD(device_probe, ahci_ata_probe), 816 DEVMETHOD(device_attach, ahci_attach), 817 DEVMETHOD(device_detach, ahci_detach), 818 DEVMETHOD(device_suspend, ahci_suspend), 819 DEVMETHOD(device_resume, ahci_resume), 820 DEVMETHOD(bus_print_child, ahci_print_child), 821 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 822 DEVMETHOD(bus_release_resource, ahci_release_resource), 823 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 824 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 825 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 826 { 0, 0 } 827}; 828static driver_t ahci_ata_driver = { 829 "ahci", 830 ahci_ata_methods, 831 sizeof(struct ahci_controller) 832}; 833DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 834MODULE_VERSION(ahci, 1); 835MODULE_DEPEND(ahci, cam, 1, 1, 1); 836 837static int 838ahci_ch_probe(device_t dev) 839{ 840 841 device_set_desc_copy(dev, "AHCI channel"); 842 return (0); 843} 844 845static int 846ahci_ch_attach(device_t dev) 847{ 848 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 849 struct ahci_channel *ch = device_get_softc(dev); 850 struct cam_devq *devq; 851 int rid, error, i, sata_rev = 0; 852 u_int32_t version; 853 854 ch->dev = dev; 855 ch->unit = (intptr_t)device_get_ivars(dev); 856 ch->caps = ctlr->caps; 857 ch->caps2 = ctlr->caps2; 858 ch->quirks = ctlr->quirks; 859 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 860 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 861 resource_int_value(device_get_name(dev), 862 device_get_unit(dev), "pm_level", &ch->pm_level); 863 if (ch->pm_level > 3) 864 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 865 /* Limit speed for my onboard JMicron external port. 866 * It is not eSATA really. */ 867 if (pci_get_devid(ctlr->dev) == 0x2363197b && 868 pci_get_subvendor(ctlr->dev) == 0x1043 && 869 pci_get_subdevice(ctlr->dev) == 0x81e4 && 870 ch->unit == 0) 871 sata_rev = 1; 872 if (ch->quirks & AHCI_Q_SATA2) 873 sata_rev = 2; 874 resource_int_value(device_get_name(dev), 875 device_get_unit(dev), "sata_rev", &sata_rev); 876 for (i = 0; i < 16; i++) { 877 ch->user[i].revision = sata_rev; 878 ch->user[i].mode = 0; 879 ch->user[i].bytecount = 8192; 880 ch->user[i].tags = ch->numslots; 881 ch->user[i].caps = 0; 882 ch->curr[i] = ch->user[i]; 883 if (ch->pm_level) { 884 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 885 CTS_SATA_CAPS_H_APST | 886 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 887 } 888 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA; 889 } 890 rid = ch->unit; 891 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 892 &rid, RF_ACTIVE))) 893 return (ENXIO); 894 ahci_dmainit(dev); 895 ahci_slotsalloc(dev); 896 ahci_ch_init(dev); 897 mtx_lock(&ch->mtx); 898 rid = ATA_IRQ_RID; 899 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 900 &rid, RF_SHAREABLE | RF_ACTIVE))) { 901 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 902 device_printf(dev, "Unable to map interrupt\n"); 903 return (ENXIO); 904 } 905 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 906 ahci_ch_intr_locked, dev, &ch->ih))) { 907 device_printf(dev, "Unable to setup interrupt\n"); 908 error = ENXIO; 909 goto err1; 910 } 911 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 912 version = ATA_INL(ctlr->r_mem, AHCI_VS); 913 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 914 ch->chcaps |= AHCI_P_CMD_FBSCP; 915 if (bootverbose) { 916 device_printf(dev, "Caps:%s%s%s%s%s\n", 917 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 918 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 919 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 920 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 921 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 922 } 923 /* Create the device queue for our SIM. */ 924 devq = cam_simq_alloc(ch->numslots); 925 if (devq == NULL) { 926 device_printf(dev, "Unable to allocate simq\n"); 927 error = ENOMEM; 928 goto err1; 929 } 930 /* Construct SIM entry */ 931 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 932 device_get_unit(dev), &ch->mtx, 933 min(2, ch->numslots), 934 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 935 devq); 936 if (ch->sim == NULL) { 937 device_printf(dev, "unable to allocate sim\n"); 938 error = ENOMEM; 939 goto err2; 940 } 941 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 942 device_printf(dev, "unable to register xpt bus\n"); 943 error = ENXIO; 944 goto err2; 945 } 946 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 947 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 948 device_printf(dev, "unable to create path\n"); 949 error = ENXIO; 950 goto err3; 951 } 952 if (ch->pm_level > 3) { 953 callout_reset(&ch->pm_timer, 954 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 955 ahci_ch_pm, dev); 956 } 957 mtx_unlock(&ch->mtx); 958 return (0); 959 960err3: 961 xpt_bus_deregister(cam_sim_path(ch->sim)); 962err2: 963 cam_sim_free(ch->sim, /*free_devq*/TRUE); 964err1: 965 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 966 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 967 mtx_unlock(&ch->mtx); 968 return (error); 969} 970 971static int 972ahci_ch_detach(device_t dev) 973{ 974 struct ahci_channel *ch = device_get_softc(dev); 975 976 mtx_lock(&ch->mtx); 977 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 978 xpt_free_path(ch->path); 979 xpt_bus_deregister(cam_sim_path(ch->sim)); 980 cam_sim_free(ch->sim, /*free_devq*/TRUE); 981 mtx_unlock(&ch->mtx); 982 983 if (ch->pm_level > 3) 984 callout_drain(&ch->pm_timer); 985 bus_teardown_intr(dev, ch->r_irq, ch->ih); 986 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 987 988 ahci_ch_deinit(dev); 989 ahci_slotsfree(dev); 990 ahci_dmafini(dev); 991 992 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 993 mtx_destroy(&ch->mtx); 994 return (0); 995} 996 997static int 998ahci_ch_init(device_t dev) 999{ 1000 struct ahci_channel *ch = device_get_softc(dev); 1001 uint64_t work; 1002 1003 /* Disable port interrupts */ 1004 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1005 /* Setup work areas */ 1006 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1007 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1008 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1009 work = ch->dma.rfis_bus; 1010 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1011 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1012 /* Activate the channel and power/spin up device */ 1013 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1014 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1015 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1016 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1017 ahci_start_fr(dev); 1018 ahci_start(dev, 1); 1019 return (0); 1020} 1021 1022static int 1023ahci_ch_deinit(device_t dev) 1024{ 1025 struct ahci_channel *ch = device_get_softc(dev); 1026 1027 /* Disable port interrupts. */ 1028 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1029 /* Reset command register. */ 1030 ahci_stop(dev); 1031 ahci_stop_fr(dev); 1032 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1033 /* Allow everything, including partial and slumber modes. */ 1034 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1035 /* Request slumber mode transition and give some time to get there. */ 1036 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1037 DELAY(100); 1038 /* Disable PHY. */ 1039 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1040 return (0); 1041} 1042 1043static int 1044ahci_ch_suspend(device_t dev) 1045{ 1046 struct ahci_channel *ch = device_get_softc(dev); 1047 1048 mtx_lock(&ch->mtx); 1049 xpt_freeze_simq(ch->sim, 1); 1050 while (ch->oslots) 1051 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1052 ahci_ch_deinit(dev); 1053 mtx_unlock(&ch->mtx); 1054 return (0); 1055} 1056 1057static int 1058ahci_ch_resume(device_t dev) 1059{ 1060 struct ahci_channel *ch = device_get_softc(dev); 1061 1062 mtx_lock(&ch->mtx); 1063 ahci_ch_init(dev); 1064 ahci_reset(dev); 1065 xpt_release_simq(ch->sim, TRUE); 1066 mtx_unlock(&ch->mtx); 1067 return (0); 1068} 1069 1070devclass_t ahcich_devclass; 1071static device_method_t ahcich_methods[] = { 1072 DEVMETHOD(device_probe, ahci_ch_probe), 1073 DEVMETHOD(device_attach, ahci_ch_attach), 1074 DEVMETHOD(device_detach, ahci_ch_detach), 1075 DEVMETHOD(device_suspend, ahci_ch_suspend), 1076 DEVMETHOD(device_resume, ahci_ch_resume), 1077 { 0, 0 } 1078}; 1079static driver_t ahcich_driver = { 1080 "ahcich", 1081 ahcich_methods, 1082 sizeof(struct ahci_channel) 1083}; 1084DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1085 1086struct ahci_dc_cb_args { 1087 bus_addr_t maddr; 1088 int error; 1089}; 1090 1091static void 1092ahci_dmainit(device_t dev) 1093{ 1094 struct ahci_channel *ch = device_get_softc(dev); 1095 struct ahci_dc_cb_args dcba; 1096 size_t rfsize; 1097 1098 if (ch->caps & AHCI_CAP_64BIT) 1099 ch->dma.max_address = BUS_SPACE_MAXADDR; 1100 else 1101 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1102 /* Command area. */ 1103 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1104 ch->dma.max_address, BUS_SPACE_MAXADDR, 1105 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1106 0, NULL, NULL, &ch->dma.work_tag)) 1107 goto error; 1108 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1109 &ch->dma.work_map)) 1110 goto error; 1111 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1112 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1113 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1114 goto error; 1115 } 1116 ch->dma.work_bus = dcba.maddr; 1117 /* FIS receive area. */ 1118 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1119 rfsize = 4096; 1120 else 1121 rfsize = 256; 1122 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1123 ch->dma.max_address, BUS_SPACE_MAXADDR, 1124 NULL, NULL, rfsize, 1, rfsize, 1125 0, NULL, NULL, &ch->dma.rfis_tag)) 1126 goto error; 1127 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1128 &ch->dma.rfis_map)) 1129 goto error; 1130 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1131 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1132 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1133 goto error; 1134 } 1135 ch->dma.rfis_bus = dcba.maddr; 1136 /* Data area. */ 1137 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1138 ch->dma.max_address, BUS_SPACE_MAXADDR, 1139 NULL, NULL, 1140 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1141 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1142 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1143 goto error; 1144 } 1145 return; 1146 1147error: 1148 device_printf(dev, "WARNING - DMA initialization failed\n"); 1149 ahci_dmafini(dev); 1150} 1151 1152static void 1153ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1154{ 1155 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1156 1157 if (!(dcba->error = error)) 1158 dcba->maddr = segs[0].ds_addr; 1159} 1160 1161static void 1162ahci_dmafini(device_t dev) 1163{ 1164 struct ahci_channel *ch = device_get_softc(dev); 1165 1166 if (ch->dma.data_tag) { 1167 bus_dma_tag_destroy(ch->dma.data_tag); 1168 ch->dma.data_tag = NULL; 1169 } 1170 if (ch->dma.rfis_bus) { 1171 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1172 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1173 ch->dma.rfis_bus = 0; 1174 ch->dma.rfis_map = NULL; 1175 ch->dma.rfis = NULL; 1176 } 1177 if (ch->dma.work_bus) { 1178 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1179 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1180 ch->dma.work_bus = 0; 1181 ch->dma.work_map = NULL; 1182 ch->dma.work = NULL; 1183 } 1184 if (ch->dma.work_tag) { 1185 bus_dma_tag_destroy(ch->dma.work_tag); 1186 ch->dma.work_tag = NULL; 1187 } 1188} 1189 1190static void 1191ahci_slotsalloc(device_t dev) 1192{ 1193 struct ahci_channel *ch = device_get_softc(dev); 1194 int i; 1195 1196 /* Alloc and setup command/dma slots */ 1197 bzero(ch->slot, sizeof(ch->slot)); 1198 for (i = 0; i < ch->numslots; i++) { 1199 struct ahci_slot *slot = &ch->slot[i]; 1200 1201 slot->dev = dev; 1202 slot->slot = i; 1203 slot->state = AHCI_SLOT_EMPTY; 1204 slot->ccb = NULL; 1205 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1206 1207 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1208 device_printf(ch->dev, "FAILURE - create data_map\n"); 1209 } 1210} 1211 1212static void 1213ahci_slotsfree(device_t dev) 1214{ 1215 struct ahci_channel *ch = device_get_softc(dev); 1216 int i; 1217 1218 /* Free all dma slots */ 1219 for (i = 0; i < ch->numslots; i++) { 1220 struct ahci_slot *slot = &ch->slot[i]; 1221 1222 callout_drain(&slot->timeout); 1223 if (slot->dma.data_map) { 1224 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1225 slot->dma.data_map = NULL; 1226 } 1227 } 1228} 1229 1230static void 1231ahci_phy_check_events(device_t dev, u_int32_t serr) 1232{ 1233 struct ahci_channel *ch = device_get_softc(dev); 1234 1235 if ((serr & ATA_SE_PHY_CHANGED) && (ch->pm_level == 0)) { 1236 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1237 union ccb *ccb; 1238 1239 if (bootverbose) { 1240 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1241 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1242 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 1243 device_printf(dev, "CONNECT requested\n"); 1244 } else 1245 device_printf(dev, "DISCONNECT requested\n"); 1246 } 1247 ahci_reset(dev); 1248 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1249 return; 1250 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1251 cam_sim_path(ch->sim), 1252 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1253 xpt_free_ccb(ccb); 1254 return; 1255 } 1256 xpt_rescan(ccb); 1257 } 1258} 1259 1260static void 1261ahci_notify_events(device_t dev, u_int32_t status) 1262{ 1263 struct ahci_channel *ch = device_get_softc(dev); 1264 struct cam_path *dpath; 1265 int i; 1266 1267 if (ch->caps & AHCI_CAP_SSNTF) 1268 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1269 if (bootverbose) 1270 device_printf(dev, "SNTF 0x%04x\n", status); 1271 for (i = 0; i < 16; i++) { 1272 if ((status & (1 << i)) == 0) 1273 continue; 1274 if (xpt_create_path(&dpath, NULL, 1275 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1276 xpt_async(AC_SCSI_AEN, dpath, NULL); 1277 xpt_free_path(dpath); 1278 } 1279 } 1280} 1281 1282static void 1283ahci_ch_intr_locked(void *data) 1284{ 1285 device_t dev = (device_t)data; 1286 struct ahci_channel *ch = device_get_softc(dev); 1287 1288 mtx_lock(&ch->mtx); 1289 ahci_ch_intr(data); 1290 mtx_unlock(&ch->mtx); 1291} 1292 1293static void 1294ahci_ch_pm(void *arg) 1295{ 1296 device_t dev = (device_t)arg; 1297 struct ahci_channel *ch = device_get_softc(dev); 1298 uint32_t work; 1299 1300 if (ch->numrslots != 0) 1301 return; 1302 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1303 if (ch->pm_level == 4) 1304 work |= AHCI_P_CMD_PARTIAL; 1305 else 1306 work |= AHCI_P_CMD_SLUMBER; 1307 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1308} 1309 1310static void 1311ahci_ch_intr(void *data) 1312{ 1313 device_t dev = (device_t)data; 1314 struct ahci_channel *ch = device_get_softc(dev); 1315 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1316 enum ahci_err_type et; 1317 int i, ccs, port; 1318 1319 /* Read and clear interrupt statuses. */ 1320 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1321 if (istatus == 0) 1322 return; 1323 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1324 /* Read command statuses. */ 1325 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1326 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1327 if (istatus & AHCI_P_IX_SDB) { 1328 if (ch->caps & AHCI_CAP_SSNTF) 1329 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1330 else if (ch->fbs_enabled) { 1331 u_int8_t *fis = ch->dma.rfis + 0x58; 1332 1333 for (i = 0; i < 16; i++) { 1334 if (fis[1] & 0x80) { 1335 fis[1] &= 0x7f; 1336 sntf |= 1 << i; 1337 } 1338 fis += 256; 1339 } 1340 } else { 1341 u_int8_t *fis = ch->dma.rfis + 0x58; 1342 1343 if (fis[1] & 0x80) 1344 sntf = (1 << (fis[1] & 0x0f)); 1345 } 1346 } 1347 /* Process PHY events */ 1348 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1349 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1350 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1351 if (serr) { 1352 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1353 ahci_phy_check_events(dev, serr); 1354 } 1355 } 1356 /* Process command errors */ 1357 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1358 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1359 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1360 >> AHCI_P_CMD_CCS_SHIFT; 1361//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1362// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1363// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1364 port = -1; 1365 if (ch->fbs_enabled) { 1366 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1367 if (fbs & AHCI_P_FBS_SDE) { 1368 port = (fbs & AHCI_P_FBS_DWE) 1369 >> AHCI_P_FBS_DWE_SHIFT; 1370 } else { 1371 for (i = 0; i < 16; i++) { 1372 if (ch->numrslotspd[i] == 0) 1373 continue; 1374 if (port == -1) 1375 port = i; 1376 else if (port != i) { 1377 port = -2; 1378 break; 1379 } 1380 } 1381 } 1382 } 1383 err = ch->rslots & (cstatus | sstatus); 1384 } else { 1385 ccs = 0; 1386 err = 0; 1387 port = -1; 1388 } 1389 /* Complete all successfull commands. */ 1390 ok = ch->rslots & ~(cstatus | sstatus); 1391 for (i = 0; i < ch->numslots; i++) { 1392 if ((ok >> i) & 1) 1393 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1394 } 1395 /* On error, complete the rest of commands with error statuses. */ 1396 if (err) { 1397 if (ch->frozen) { 1398 union ccb *fccb = ch->frozen; 1399 ch->frozen = NULL; 1400 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1401 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1402 xpt_freeze_devq(fccb->ccb_h.path, 1); 1403 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1404 } 1405 xpt_done(fccb); 1406 } 1407 for (i = 0; i < ch->numslots; i++) { 1408 /* XXX: reqests in loading state. */ 1409 if (((err >> i) & 1) == 0) 1410 continue; 1411 if (port >= 0 && 1412 ch->slot[i].ccb->ccb_h.target_id != port) 1413 continue; 1414 if (istatus & AHCI_P_IX_TFE) { 1415 if (port != -2) { 1416 /* Task File Error */ 1417 if (ch->numtslotspd[ 1418 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1419 /* Untagged operation. */ 1420 if (i == ccs) 1421 et = AHCI_ERR_TFE; 1422 else 1423 et = AHCI_ERR_INNOCENT; 1424 } else { 1425 /* Tagged operation. */ 1426 et = AHCI_ERR_NCQ; 1427 } 1428 } else { 1429 et = AHCI_ERR_TFE; 1430 ch->fatalerr = 1; 1431 } 1432 } else if (istatus & AHCI_P_IX_IF) { 1433 if (ch->numtslots == 0 && i != ccs && port != -2) 1434 et = AHCI_ERR_INNOCENT; 1435 else 1436 et = AHCI_ERR_SATA; 1437 } else 1438 et = AHCI_ERR_INVALID; 1439 ahci_end_transaction(&ch->slot[i], et); 1440 } 1441 /* 1442 * We can't reinit port if there are some other 1443 * commands active, use resume to complete them. 1444 */ 1445 if (ch->rslots != 0) 1446 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1447 } 1448 /* Process NOTIFY events */ 1449 if (sntf) 1450 ahci_notify_events(dev, sntf); 1451} 1452 1453/* Must be called with channel locked. */ 1454static int 1455ahci_check_collision(device_t dev, union ccb *ccb) 1456{ 1457 struct ahci_channel *ch = device_get_softc(dev); 1458 int t = ccb->ccb_h.target_id; 1459 1460 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1461 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1462 /* Tagged command while we have no supported tag free. */ 1463 if (((~ch->oslots) & (0xffffffff >> (32 - 1464 ch->curr[t].tags))) == 0) 1465 return (1); 1466 /* If we have FBS */ 1467 if (ch->fbs_enabled) { 1468 /* Tagged command while untagged are active. */ 1469 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1470 return (1); 1471 } else { 1472 /* Tagged command while untagged are active. */ 1473 if (ch->numrslots != 0 && ch->numtslots == 0) 1474 return (1); 1475 /* Tagged command while tagged to other target is active. */ 1476 if (ch->numtslots != 0 && 1477 ch->taggedtarget != ccb->ccb_h.target_id) 1478 return (1); 1479 } 1480 } else { 1481 /* If we have FBS */ 1482 if (ch->fbs_enabled) { 1483 /* Untagged command while tagged are active. */ 1484 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1485 return (1); 1486 } else { 1487 /* Untagged command while tagged are active. */ 1488 if (ch->numrslots != 0 && ch->numtslots != 0) 1489 return (1); 1490 } 1491 } 1492 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1493 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1494 /* Atomic command while anything active. */ 1495 if (ch->numrslots != 0) 1496 return (1); 1497 } 1498 /* We have some atomic command running. */ 1499 if (ch->aslots != 0) 1500 return (1); 1501 return (0); 1502} 1503 1504/* Must be called with channel locked. */ 1505static void 1506ahci_begin_transaction(device_t dev, union ccb *ccb) 1507{ 1508 struct ahci_channel *ch = device_get_softc(dev); 1509 struct ahci_slot *slot; 1510 int tag, tags; 1511 1512 /* Choose empty slot. */ 1513 tags = ch->numslots; 1514 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1515 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1516 tags = ch->curr[ccb->ccb_h.target_id].tags; 1517 tag = ch->lastslot; 1518 while (1) { 1519 if (tag >= tags) 1520 tag = 0; 1521 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1522 break; 1523 tag++; 1524 }; 1525 ch->lastslot = tag; 1526 /* Occupy chosen slot. */ 1527 slot = &ch->slot[tag]; 1528 slot->ccb = ccb; 1529 /* Stop PM timer. */ 1530 if (ch->numrslots == 0 && ch->pm_level > 3) 1531 callout_stop(&ch->pm_timer); 1532 /* Update channel stats. */ 1533 ch->oslots |= (1 << slot->slot); 1534 ch->numrslots++; 1535 ch->numrslotspd[ccb->ccb_h.target_id]++; 1536 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1537 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1538 ch->numtslots++; 1539 ch->numtslotspd[ccb->ccb_h.target_id]++; 1540 ch->taggedtarget = ccb->ccb_h.target_id; 1541 } 1542 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1543 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1544 ch->aslots |= (1 << slot->slot); 1545 slot->dma.nsegs = 0; 1546 /* If request moves data, setup and load SG list */ 1547 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1548 void *buf; 1549 bus_size_t size; 1550 1551 slot->state = AHCI_SLOT_LOADING; 1552 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1553 buf = ccb->ataio.data_ptr; 1554 size = ccb->ataio.dxfer_len; 1555 } else { 1556 buf = ccb->csio.data_ptr; 1557 size = ccb->csio.dxfer_len; 1558 } 1559 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1560 buf, size, ahci_dmasetprd, slot, 0); 1561 } else 1562 ahci_execute_transaction(slot); 1563} 1564 1565/* Locked by busdma engine. */ 1566static void 1567ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1568{ 1569 struct ahci_slot *slot = arg; 1570 struct ahci_channel *ch = device_get_softc(slot->dev); 1571 struct ahci_cmd_tab *ctp; 1572 struct ahci_dma_prd *prd; 1573 int i; 1574 1575 if (error) { 1576 device_printf(slot->dev, "DMA load error\n"); 1577 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1578 return; 1579 } 1580 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1581 /* Get a piece of the workspace for this request */ 1582 ctp = (struct ahci_cmd_tab *) 1583 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1584 /* Fill S/G table */ 1585 prd = &ctp->prd_tab[0]; 1586 for (i = 0; i < nsegs; i++) { 1587 prd[i].dba = htole64(segs[i].ds_addr); 1588 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1589 } 1590 slot->dma.nsegs = nsegs; 1591 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1592 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1593 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1594 ahci_execute_transaction(slot); 1595} 1596 1597/* Must be called with channel locked. */ 1598static void 1599ahci_execute_transaction(struct ahci_slot *slot) 1600{ 1601 device_t dev = slot->dev; 1602 struct ahci_channel *ch = device_get_softc(dev); 1603 struct ahci_cmd_tab *ctp; 1604 struct ahci_cmd_list *clp; 1605 union ccb *ccb = slot->ccb; 1606 int port = ccb->ccb_h.target_id & 0x0f; 1607 int fis_size, i; 1608 uint8_t *fis = ch->dma.rfis + 0x40; 1609 uint8_t val; 1610 1611 /* Get a piece of the workspace for this request */ 1612 ctp = (struct ahci_cmd_tab *) 1613 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1614 /* Setup the FIS for this request */ 1615 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1616 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1617 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1618 return; 1619 } 1620 /* Setup the command list entry */ 1621 clp = (struct ahci_cmd_list *) 1622 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1623 clp->prd_length = slot->dma.nsegs; 1624 clp->cmd_flags = (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1625 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1626 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1627 (fis_size / sizeof(u_int32_t)) | 1628 (port << 12); 1629 /* Special handling for Soft Reset command. */ 1630 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1631 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1632 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1633 /* Kick controller into sane state */ 1634 ahci_stop(dev); 1635 ahci_clo(dev); 1636 ahci_start(dev, 0); 1637 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1638 } else { 1639 /* Prepare FIS receive area for check. */ 1640 for (i = 0; i < 20; i++) 1641 fis[i] = 0xff; 1642 } 1643 } 1644 clp->bytecount = 0; 1645 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1646 (AHCI_CT_SIZE * slot->slot)); 1647 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1648 BUS_DMASYNC_PREWRITE); 1649 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1650 BUS_DMASYNC_PREREAD); 1651 /* Set ACTIVE bit for NCQ commands. */ 1652 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1653 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1654 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1655 } 1656 /* If FBS is enabled, set PMP port. */ 1657 if (ch->fbs_enabled) { 1658 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1659 (port << AHCI_P_FBS_DEV_SHIFT)); 1660 } 1661 /* Issue command to the controller. */ 1662 slot->state = AHCI_SLOT_RUNNING; 1663 ch->rslots |= (1 << slot->slot); 1664 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1665 /* Device reset commands doesn't interrupt. Poll them. */ 1666 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1667 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || 1668 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL))) { 1669 int count, timeout = ccb->ccb_h.timeout; 1670 enum ahci_err_type et = AHCI_ERR_NONE; 1671 1672 for (count = 0; count < timeout; count++) { 1673 DELAY(1000); 1674 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1675 break; 1676 if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) { 1677 device_printf(ch->dev, 1678 "Poll error on slot %d, TFD: %04x\n", 1679 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1680 et = AHCI_ERR_TFE; 1681 break; 1682 } 1683 /* Workaround for ATI SB600/SB700 chipsets. */ 1684 if (ccb->ccb_h.target_id == 15 && 1685 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1686 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1687 et = AHCI_ERR_TIMEOUT; 1688 break; 1689 } 1690 } 1691 if (timeout && (count >= timeout)) { 1692 device_printf(ch->dev, 1693 "Poll timeout on slot %d\n", slot->slot); 1694 device_printf(dev, "is %08x cs %08x ss %08x " 1695 "rs %08x tfd %02x serr %08x\n", 1696 ATA_INL(ch->r_mem, AHCI_P_IS), 1697 ATA_INL(ch->r_mem, AHCI_P_CI), 1698 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1699 ATA_INL(ch->r_mem, AHCI_P_TFD), 1700 ATA_INL(ch->r_mem, AHCI_P_SERR)); 1701 et = AHCI_ERR_TIMEOUT; 1702 } 1703 /* Marvell controllers do not wait for readyness. */ 1704 if ((ch->quirks & AHCI_Q_NOBSYRES) && 1705 (ccb->ccb_h.func_code == XPT_ATA_IO) && 1706 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1707 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1708 while ((val = fis[2]) & (ATA_S_BUSY | ATA_S_DRQ)) { 1709 DELAY(1000); 1710 if (count++ >= timeout) { 1711 device_printf(dev, "device is not " 1712 "ready after soft-reset: " 1713 "tfd = %08x\n", val); 1714 et = AHCI_ERR_TIMEOUT; 1715 break; 1716 } 1717 } 1718 } 1719 ahci_end_transaction(slot, et); 1720 /* Kick controller into sane state and enable FBS. */ 1721 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1722 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1723 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1724 ahci_stop(ch->dev); 1725 ahci_start(ch->dev, 1); 1726 } 1727 return; 1728 } 1729 /* Start command execution timeout */ 1730 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1731 (timeout_t*)ahci_timeout, slot); 1732 return; 1733} 1734 1735/* Must be called with channel locked. */ 1736static void 1737ahci_process_timeout(device_t dev) 1738{ 1739 struct ahci_channel *ch = device_get_softc(dev); 1740 int i; 1741 1742 mtx_assert(&ch->mtx, MA_OWNED); 1743 /* Handle the rest of commands. */ 1744 for (i = 0; i < ch->numslots; i++) { 1745 /* Do we have a running request on slot? */ 1746 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1747 continue; 1748 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1749 } 1750} 1751 1752/* Must be called with channel locked. */ 1753static void 1754ahci_rearm_timeout(device_t dev) 1755{ 1756 struct ahci_channel *ch = device_get_softc(dev); 1757 int i; 1758 1759 mtx_assert(&ch->mtx, MA_OWNED); 1760 for (i = 0; i < ch->numslots; i++) { 1761 struct ahci_slot *slot = &ch->slot[i]; 1762 1763 /* Do we have a running request on slot? */ 1764 if (slot->state < AHCI_SLOT_RUNNING) 1765 continue; 1766 if ((ch->toslots & (1 << i)) == 0) 1767 continue; 1768 callout_reset(&slot->timeout, 1769 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1770 (timeout_t*)ahci_timeout, slot); 1771 } 1772} 1773 1774/* Locked by callout mechanism. */ 1775static void 1776ahci_timeout(struct ahci_slot *slot) 1777{ 1778 device_t dev = slot->dev; 1779 struct ahci_channel *ch = device_get_softc(dev); 1780 uint32_t sstatus; 1781 int ccs; 1782 int i; 1783 1784 /* Check for stale timeout. */ 1785 if (slot->state < AHCI_SLOT_RUNNING) 1786 return; 1787 1788 /* Check if slot was not being executed last time we checked. */ 1789 if (slot->state < AHCI_SLOT_EXECUTING) { 1790 /* Check if slot started executing. */ 1791 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1792 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1793 >> AHCI_P_CMD_CCS_SHIFT; 1794 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1795 ch->fbs_enabled) 1796 slot->state = AHCI_SLOT_EXECUTING; 1797 1798 callout_reset(&slot->timeout, 1799 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1800 (timeout_t*)ahci_timeout, slot); 1801 return; 1802 } 1803 1804 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1805 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x\n", 1806 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1807 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1808 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR)); 1809 1810 /* Handle frozen command. */ 1811 if (ch->frozen) { 1812 union ccb *fccb = ch->frozen; 1813 ch->frozen = NULL; 1814 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1815 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1816 xpt_freeze_devq(fccb->ccb_h.path, 1); 1817 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1818 } 1819 xpt_done(fccb); 1820 } 1821 if (!ch->fbs_enabled) { 1822 /* Without FBS we know real timeout source. */ 1823 ch->fatalerr = 1; 1824 /* Handle command with timeout. */ 1825 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1826 /* Handle the rest of commands. */ 1827 for (i = 0; i < ch->numslots; i++) { 1828 /* Do we have a running request on slot? */ 1829 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1830 continue; 1831 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1832 } 1833 } else { 1834 /* With FBS we wait for other commands timeout and pray. */ 1835 if (ch->toslots == 0) 1836 xpt_freeze_simq(ch->sim, 1); 1837 ch->toslots |= (1 << slot->slot); 1838 if ((ch->rslots & ~ch->toslots) == 0) 1839 ahci_process_timeout(dev); 1840 else 1841 device_printf(dev, " ... waiting for slots %08x\n", 1842 ch->rslots & ~ch->toslots); 1843 } 1844} 1845 1846/* Must be called with channel locked. */ 1847static void 1848ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1849{ 1850 device_t dev = slot->dev; 1851 struct ahci_channel *ch = device_get_softc(dev); 1852 union ccb *ccb = slot->ccb; 1853 1854 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1855 BUS_DMASYNC_POSTWRITE); 1856 /* Read result registers to the result struct 1857 * May be incorrect if several commands finished same time, 1858 * so read only when sure or have to. 1859 */ 1860 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1861 struct ata_res *res = &ccb->ataio.res; 1862 1863 if ((et == AHCI_ERR_TFE) || 1864 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1865 u_int8_t *fis = ch->dma.rfis + 0x40; 1866 1867 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1868 BUS_DMASYNC_POSTREAD); 1869 if (ch->fbs_enabled) { 1870 fis += ccb->ccb_h.target_id * 256; 1871 res->status = fis[2]; 1872 res->error = fis[3]; 1873 } else { 1874 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 1875 1876 res->status = tfd; 1877 res->error = tfd >> 8; 1878 } 1879 res->lba_low = fis[4]; 1880 res->lba_mid = fis[5]; 1881 res->lba_high = fis[6]; 1882 res->device = fis[7]; 1883 res->lba_low_exp = fis[8]; 1884 res->lba_mid_exp = fis[9]; 1885 res->lba_high_exp = fis[10]; 1886 res->sector_count = fis[12]; 1887 res->sector_count_exp = fis[13]; 1888 } else 1889 bzero(res, sizeof(*res)); 1890 } 1891 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1892 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1893 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1894 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1895 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1896 } 1897 if (et != AHCI_ERR_NONE) 1898 ch->eslots |= (1 << slot->slot); 1899 /* In case of error, freeze device for proper recovery. */ 1900 if ((et != AHCI_ERR_NONE) && (!ch->readlog) && 1901 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1902 xpt_freeze_devq(ccb->ccb_h.path, 1); 1903 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1904 } 1905 /* Set proper result status. */ 1906 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1907 switch (et) { 1908 case AHCI_ERR_NONE: 1909 ccb->ccb_h.status |= CAM_REQ_CMP; 1910 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1911 ccb->csio.scsi_status = SCSI_STATUS_OK; 1912 break; 1913 case AHCI_ERR_INVALID: 1914 ch->fatalerr = 1; 1915 ccb->ccb_h.status |= CAM_REQ_INVALID; 1916 break; 1917 case AHCI_ERR_INNOCENT: 1918 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1919 break; 1920 case AHCI_ERR_TFE: 1921 case AHCI_ERR_NCQ: 1922 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1923 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1924 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1925 } else { 1926 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1927 } 1928 break; 1929 case AHCI_ERR_SATA: 1930 ch->fatalerr = 1; 1931 if (!ch->readlog) { 1932 xpt_freeze_simq(ch->sim, 1); 1933 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1934 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1935 } 1936 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1937 break; 1938 case AHCI_ERR_TIMEOUT: 1939 if (!ch->readlog) { 1940 xpt_freeze_simq(ch->sim, 1); 1941 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1942 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1943 } 1944 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1945 break; 1946 default: 1947 ch->fatalerr = 1; 1948 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1949 } 1950 /* Free slot. */ 1951 ch->oslots &= ~(1 << slot->slot); 1952 ch->rslots &= ~(1 << slot->slot); 1953 ch->aslots &= ~(1 << slot->slot); 1954 if (et != AHCI_ERR_TIMEOUT) { 1955 if (ch->toslots == (1 << slot->slot)) 1956 xpt_release_simq(ch->sim, TRUE); 1957 ch->toslots &= ~(1 << slot->slot); 1958 } 1959 slot->state = AHCI_SLOT_EMPTY; 1960 slot->ccb = NULL; 1961 /* Update channel stats. */ 1962 ch->numrslots--; 1963 ch->numrslotspd[ccb->ccb_h.target_id]--; 1964 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1965 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1966 ch->numtslots--; 1967 ch->numtslotspd[ccb->ccb_h.target_id]--; 1968 } 1969 /* If it was first request of reset sequence and there is no error, 1970 * proceed to second request. */ 1971 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1972 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1973 (ccb->ataio.cmd.control & ATA_A_RESET) && 1974 et == AHCI_ERR_NONE) { 1975 ccb->ataio.cmd.control &= ~ATA_A_RESET; 1976 ahci_begin_transaction(dev, ccb); 1977 return; 1978 } 1979 /* If it was our READ LOG command - process it. */ 1980 if (ch->readlog) { 1981 ahci_process_read_log(dev, ccb); 1982 /* If it was NCQ command error, put result on hold. */ 1983 } else if (et == AHCI_ERR_NCQ) { 1984 ch->hold[slot->slot] = ccb; 1985 ch->numhslots++; 1986 } else 1987 xpt_done(ccb); 1988 /* Unfreeze frozen command. */ 1989 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 1990 union ccb *fccb = ch->frozen; 1991 ch->frozen = NULL; 1992 ahci_begin_transaction(dev, fccb); 1993 xpt_release_simq(ch->sim, TRUE); 1994 } 1995 /* If we have no other active commands, ... */ 1996 if (ch->rslots == 0) { 1997 /* if there was fatal error - reset port. */ 1998 if (ch->toslots != 0 || ch->fatalerr) { 1999 ahci_reset(dev); 2000 } else { 2001 /* if we have slots in error, we can reinit port. */ 2002 if (ch->eslots != 0) { 2003 ahci_stop(dev); 2004 ahci_start(dev, 1); 2005 } 2006 /* if there commands on hold, we can do READ LOG. */ 2007 if (!ch->readlog && ch->numhslots) 2008 ahci_issue_read_log(dev); 2009 } 2010 /* If all the rest of commands are in timeout - give them chance. */ 2011 } else if ((ch->rslots & ~ch->toslots) == 0 && 2012 et != AHCI_ERR_TIMEOUT) 2013 ahci_rearm_timeout(dev); 2014 /* Start PM timer. */ 2015 if (ch->numrslots == 0 && ch->pm_level > 3 && 2016 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2017 callout_schedule(&ch->pm_timer, 2018 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2019 } 2020} 2021 2022static void 2023ahci_issue_read_log(device_t dev) 2024{ 2025 struct ahci_channel *ch = device_get_softc(dev); 2026 union ccb *ccb; 2027 struct ccb_ataio *ataio; 2028 int i; 2029 2030 ch->readlog = 1; 2031 /* Find some holden command. */ 2032 for (i = 0; i < ch->numslots; i++) { 2033 if (ch->hold[i]) 2034 break; 2035 } 2036 ccb = xpt_alloc_ccb_nowait(); 2037 if (ccb == NULL) { 2038 device_printf(dev, "Unable allocate READ LOG command"); 2039 return; /* XXX */ 2040 } 2041 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2042 ccb->ccb_h.func_code = XPT_ATA_IO; 2043 ccb->ccb_h.flags = CAM_DIR_IN; 2044 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2045 ataio = &ccb->ataio; 2046 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2047 if (ataio->data_ptr == NULL) { 2048 device_printf(dev, "Unable allocate memory for READ LOG command"); 2049 return; /* XXX */ 2050 } 2051 ataio->dxfer_len = 512; 2052 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2053 ataio->cmd.flags = CAM_ATAIO_48BIT; 2054 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2055 ataio->cmd.sector_count = 1; 2056 ataio->cmd.sector_count_exp = 0; 2057 ataio->cmd.lba_low = 0x10; 2058 ataio->cmd.lba_mid = 0; 2059 ataio->cmd.lba_mid_exp = 0; 2060 /* Freeze SIM while doing READ LOG EXT. */ 2061 xpt_freeze_simq(ch->sim, 1); 2062 ahci_begin_transaction(dev, ccb); 2063} 2064 2065static void 2066ahci_process_read_log(device_t dev, union ccb *ccb) 2067{ 2068 struct ahci_channel *ch = device_get_softc(dev); 2069 uint8_t *data; 2070 struct ata_res *res; 2071 int i; 2072 2073 ch->readlog = 0; 2074 2075 data = ccb->ataio.data_ptr; 2076 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2077 (data[0] & 0x80) == 0) { 2078 for (i = 0; i < ch->numslots; i++) { 2079 if (!ch->hold[i]) 2080 continue; 2081 if ((data[0] & 0x1F) == i) { 2082 res = &ch->hold[i]->ataio.res; 2083 res->status = data[2]; 2084 res->error = data[3]; 2085 res->lba_low = data[4]; 2086 res->lba_mid = data[5]; 2087 res->lba_high = data[6]; 2088 res->device = data[7]; 2089 res->lba_low_exp = data[8]; 2090 res->lba_mid_exp = data[9]; 2091 res->lba_high_exp = data[10]; 2092 res->sector_count = data[12]; 2093 res->sector_count_exp = data[13]; 2094 } else { 2095 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2096 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2097 } 2098 xpt_done(ch->hold[i]); 2099 ch->hold[i] = NULL; 2100 ch->numhslots--; 2101 } 2102 } else { 2103 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2104 device_printf(dev, "Error while READ LOG EXT\n"); 2105 else if ((data[0] & 0x80) == 0) { 2106 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2107 } 2108 for (i = 0; i < ch->numslots; i++) { 2109 if (!ch->hold[i]) 2110 continue; 2111 xpt_done(ch->hold[i]); 2112 ch->hold[i] = NULL; 2113 ch->numhslots--; 2114 } 2115 } 2116 free(ccb->ataio.data_ptr, M_AHCI); 2117 xpt_free_ccb(ccb); 2118 xpt_release_simq(ch->sim, TRUE); 2119} 2120 2121static void 2122ahci_start(device_t dev, int fbs) 2123{ 2124 struct ahci_channel *ch = device_get_softc(dev); 2125 u_int32_t cmd; 2126 2127 /* Clear SATA error register */ 2128 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2129 /* Clear any interrupts pending on this channel */ 2130 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2131 /* Configure FIS-based switching if supported. */ 2132 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2133 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2134 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2135 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2136 } 2137 /* Start operations on this channel */ 2138 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2139 cmd &= ~AHCI_P_CMD_PMA; 2140 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2141 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2142} 2143 2144static void 2145ahci_stop(device_t dev) 2146{ 2147 struct ahci_channel *ch = device_get_softc(dev); 2148 u_int32_t cmd; 2149 int timeout; 2150 2151 /* Kill all activity on this channel */ 2152 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2153 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2154 /* Wait for activity stop. */ 2155 timeout = 0; 2156 do { 2157 DELAY(1000); 2158 if (timeout++ > 1000) { 2159 device_printf(dev, "stopping AHCI engine failed\n"); 2160 break; 2161 } 2162 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2163 ch->eslots = 0; 2164} 2165 2166static void 2167ahci_clo(device_t dev) 2168{ 2169 struct ahci_channel *ch = device_get_softc(dev); 2170 u_int32_t cmd; 2171 int timeout; 2172 2173 /* Issue Command List Override if supported */ 2174 if (ch->caps & AHCI_CAP_SCLO) { 2175 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2176 cmd |= AHCI_P_CMD_CLO; 2177 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2178 timeout = 0; 2179 do { 2180 DELAY(1000); 2181 if (timeout++ > 1000) { 2182 device_printf(dev, "executing CLO failed\n"); 2183 break; 2184 } 2185 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2186 } 2187} 2188 2189static void 2190ahci_stop_fr(device_t dev) 2191{ 2192 struct ahci_channel *ch = device_get_softc(dev); 2193 u_int32_t cmd; 2194 int timeout; 2195 2196 /* Kill all FIS reception on this channel */ 2197 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2198 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2199 /* Wait for FIS reception stop. */ 2200 timeout = 0; 2201 do { 2202 DELAY(1000); 2203 if (timeout++ > 1000) { 2204 device_printf(dev, "stopping AHCI FR engine failed\n"); 2205 break; 2206 } 2207 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2208} 2209 2210static void 2211ahci_start_fr(device_t dev) 2212{ 2213 struct ahci_channel *ch = device_get_softc(dev); 2214 u_int32_t cmd; 2215 2216 /* Start FIS reception on this channel */ 2217 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2218 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2219} 2220 2221static int 2222ahci_wait_ready(device_t dev, int t) 2223{ 2224 struct ahci_channel *ch = device_get_softc(dev); 2225 int timeout = 0; 2226 uint32_t val; 2227 2228 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2229 (ATA_S_BUSY | ATA_S_DRQ)) { 2230 DELAY(1000); 2231 if (timeout++ > t) { 2232 device_printf(dev, "device is not ready (timeout %dms) " 2233 "tfd = %08x\n", t, val); 2234 return (EBUSY); 2235 } 2236 } 2237 if (bootverbose) 2238 device_printf(dev, "ready wait time=%dms\n", timeout); 2239 return (0); 2240} 2241 2242static void 2243ahci_reset(device_t dev) 2244{ 2245 struct ahci_channel *ch = device_get_softc(dev); 2246 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2247 int i; 2248 2249 xpt_freeze_simq(ch->sim, 1); 2250 if (bootverbose) 2251 device_printf(dev, "AHCI reset...\n"); 2252 /* Requeue freezed command. */ 2253 if (ch->frozen) { 2254 union ccb *fccb = ch->frozen; 2255 ch->frozen = NULL; 2256 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2257 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2258 xpt_freeze_devq(fccb->ccb_h.path, 1); 2259 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2260 } 2261 xpt_done(fccb); 2262 } 2263 /* Kill the engine and requeue all running commands. */ 2264 ahci_stop(dev); 2265 for (i = 0; i < ch->numslots; i++) { 2266 /* Do we have a running request on slot? */ 2267 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2268 continue; 2269 /* XXX; Commands in loading state. */ 2270 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2271 } 2272 for (i = 0; i < ch->numslots; i++) { 2273 if (!ch->hold[i]) 2274 continue; 2275 xpt_done(ch->hold[i]); 2276 ch->hold[i] = NULL; 2277 ch->numhslots--; 2278 } 2279 if (ch->toslots != 0) 2280 xpt_release_simq(ch->sim, TRUE); 2281 ch->eslots = 0; 2282 ch->toslots = 0; 2283 ch->fatalerr = 0; 2284 /* Tell the XPT about the event */ 2285 xpt_async(AC_BUS_RESET, ch->path, NULL); 2286 /* Disable port interrupts */ 2287 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2288 /* Reset and reconnect PHY, */ 2289 if (!ahci_sata_phy_reset(dev)) { 2290 if (bootverbose) 2291 device_printf(dev, 2292 "AHCI reset done: phy reset found no device\n"); 2293 ch->devices = 0; 2294 /* Enable wanted port interrupts */ 2295 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2296 (AHCI_P_IX_CPD | AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2297 xpt_release_simq(ch->sim, TRUE); 2298 return; 2299 } 2300 /* Wait for clearing busy status. */ 2301 if (ahci_wait_ready(dev, 15000)) 2302 ahci_clo(dev); 2303 ahci_start(dev, 1); 2304 ch->devices = 1; 2305 /* Enable wanted port interrupts */ 2306 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2307 (AHCI_P_IX_CPD | AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2308 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2309 ((ch->pm_level == 0) ? AHCI_P_IX_PRC | AHCI_P_IX_PC : 0) | 2310 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2311 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2312 if (bootverbose) 2313 device_printf(dev, "AHCI reset done: device found\n"); 2314 xpt_release_simq(ch->sim, TRUE); 2315} 2316 2317static int 2318ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2319{ 2320 struct ahci_channel *ch = device_get_softc(dev); 2321 u_int8_t *fis = &ctp->cfis[0]; 2322 2323 bzero(ctp->cfis, 64); 2324 fis[0] = 0x27; /* host to device */ 2325 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2326 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2327 fis[1] |= 0x80; 2328 fis[2] = ATA_PACKET_CMD; 2329 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2330 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2331 fis[3] = ATA_F_DMA; 2332 else { 2333 fis[5] = ccb->csio.dxfer_len; 2334 fis[6] = ccb->csio.dxfer_len >> 8; 2335 } 2336 fis[7] = ATA_D_LBA; 2337 fis[15] = ATA_A_4BIT; 2338 bzero(ctp->acmd, 32); 2339 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2340 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2341 ctp->acmd, ccb->csio.cdb_len); 2342 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2343 fis[1] |= 0x80; 2344 fis[2] = ccb->ataio.cmd.command; 2345 fis[3] = ccb->ataio.cmd.features; 2346 fis[4] = ccb->ataio.cmd.lba_low; 2347 fis[5] = ccb->ataio.cmd.lba_mid; 2348 fis[6] = ccb->ataio.cmd.lba_high; 2349 fis[7] = ccb->ataio.cmd.device; 2350 fis[8] = ccb->ataio.cmd.lba_low_exp; 2351 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2352 fis[10] = ccb->ataio.cmd.lba_high_exp; 2353 fis[11] = ccb->ataio.cmd.features_exp; 2354 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2355 fis[12] = tag << 3; 2356 fis[13] = 0; 2357 } else { 2358 fis[12] = ccb->ataio.cmd.sector_count; 2359 fis[13] = ccb->ataio.cmd.sector_count_exp; 2360 } 2361 fis[15] = ATA_A_4BIT; 2362 } else { 2363 fis[15] = ccb->ataio.cmd.control; 2364 } 2365 return (20); 2366} 2367 2368static int 2369ahci_sata_connect(struct ahci_channel *ch) 2370{ 2371 u_int32_t status; 2372 int timeout; 2373 2374 /* Wait up to 100ms for "connect well" */ 2375 for (timeout = 0; timeout < 100 ; timeout++) { 2376 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2377 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2378 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2379 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2380 break; 2381 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2382 if (bootverbose) { 2383 device_printf(ch->dev, "SATA offline status=%08x\n", 2384 status); 2385 } 2386 return (0); 2387 } 2388 DELAY(1000); 2389 } 2390 if (timeout >= 100) { 2391 if (bootverbose) { 2392 device_printf(ch->dev, "SATA connect timeout status=%08x\n", 2393 status); 2394 } 2395 return (0); 2396 } 2397 if (bootverbose) { 2398 device_printf(ch->dev, "SATA connect time=%dms status=%08x\n", 2399 timeout, status); 2400 } 2401 /* Clear SATA error register */ 2402 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2403 return (1); 2404} 2405 2406static int 2407ahci_sata_phy_reset(device_t dev) 2408{ 2409 struct ahci_channel *ch = device_get_softc(dev); 2410 int sata_rev; 2411 uint32_t val; 2412 2413 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2414 if (sata_rev == 1) 2415 val = ATA_SC_SPD_SPEED_GEN1; 2416 else if (sata_rev == 2) 2417 val = ATA_SC_SPD_SPEED_GEN2; 2418 else if (sata_rev == 3) 2419 val = ATA_SC_SPD_SPEED_GEN3; 2420 else 2421 val = 0; 2422 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2423 ATA_SC_DET_RESET | val | 2424 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2425 DELAY(5000); 2426 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2427 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2428 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2429 DELAY(5000); 2430 if (!ahci_sata_connect(ch)) { 2431 if (ch->pm_level > 0) 2432 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2433 return (0); 2434 } 2435 return (1); 2436} 2437 2438static int 2439ahci_check_ids(device_t dev, union ccb *ccb) 2440{ 2441 struct ahci_channel *ch = device_get_softc(dev); 2442 2443 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2444 ccb->ccb_h.status = CAM_TID_INVALID; 2445 xpt_done(ccb); 2446 return (-1); 2447 } 2448 if (ccb->ccb_h.target_lun != 0) { 2449 ccb->ccb_h.status = CAM_LUN_INVALID; 2450 xpt_done(ccb); 2451 return (-1); 2452 } 2453 return (0); 2454} 2455 2456static void 2457ahciaction(struct cam_sim *sim, union ccb *ccb) 2458{ 2459 device_t dev; 2460 struct ahci_channel *ch; 2461 2462 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2463 ccb->ccb_h.func_code)); 2464 2465 ch = (struct ahci_channel *)cam_sim_softc(sim); 2466 dev = ch->dev; 2467 switch (ccb->ccb_h.func_code) { 2468 /* Common cases first */ 2469 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2470 case XPT_SCSI_IO: 2471 if (ahci_check_ids(dev, ccb)) 2472 return; 2473 if (ch->devices == 0 || 2474 (ch->pm_present == 0 && 2475 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2476 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2477 break; 2478 } 2479 /* Check for command collision. */ 2480 if (ahci_check_collision(dev, ccb)) { 2481 /* Freeze command. */ 2482 ch->frozen = ccb; 2483 /* We have only one frozen slot, so freeze simq also. */ 2484 xpt_freeze_simq(ch->sim, 1); 2485 return; 2486 } 2487 ahci_begin_transaction(dev, ccb); 2488 return; 2489 case XPT_EN_LUN: /* Enable LUN as a target */ 2490 case XPT_TARGET_IO: /* Execute target I/O request */ 2491 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2492 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2493 case XPT_ABORT: /* Abort the specified CCB */ 2494 /* XXX Implement */ 2495 ccb->ccb_h.status = CAM_REQ_INVALID; 2496 break; 2497 case XPT_SET_TRAN_SETTINGS: 2498 { 2499 struct ccb_trans_settings *cts = &ccb->cts; 2500 struct ahci_device *d; 2501 2502 if (ahci_check_ids(dev, ccb)) 2503 return; 2504 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2505 d = &ch->curr[ccb->ccb_h.target_id]; 2506 else 2507 d = &ch->user[ccb->ccb_h.target_id]; 2508 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2509 d->revision = cts->xport_specific.sata.revision; 2510 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2511 d->mode = cts->xport_specific.sata.mode; 2512 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2513 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2514 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2515 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2516 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2517 ch->pm_present = cts->xport_specific.sata.pm_present; 2518 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2519 d->atapi = cts->xport_specific.sata.atapi; 2520 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2521 d->caps = cts->xport_specific.sata.caps; 2522 ccb->ccb_h.status = CAM_REQ_CMP; 2523 break; 2524 } 2525 case XPT_GET_TRAN_SETTINGS: 2526 /* Get default/user set transfer settings for the target */ 2527 { 2528 struct ccb_trans_settings *cts = &ccb->cts; 2529 struct ahci_device *d; 2530 uint32_t status; 2531 2532 if (ahci_check_ids(dev, ccb)) 2533 return; 2534 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2535 d = &ch->curr[ccb->ccb_h.target_id]; 2536 else 2537 d = &ch->user[ccb->ccb_h.target_id]; 2538 cts->protocol = PROTO_ATA; 2539 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2540 cts->transport = XPORT_SATA; 2541 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2542 cts->proto_specific.valid = 0; 2543 cts->xport_specific.sata.valid = 0; 2544 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2545 (ccb->ccb_h.target_id == 15 || 2546 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2547 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2548 if (status & 0x0f0) { 2549 cts->xport_specific.sata.revision = 2550 (status & 0x0f0) >> 4; 2551 cts->xport_specific.sata.valid |= 2552 CTS_SATA_VALID_REVISION; 2553 } 2554 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2555 if (ch->pm_level) { 2556 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2557 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2558 if (ch->caps2 & AHCI_CAP2_APST) 2559 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2560 } 2561 if ((ch->caps & AHCI_CAP_SNCQ) && 2562 (ch->quirks & AHCI_Q_NOAA) == 0) 2563 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2564 cts->xport_specific.sata.caps &= 2565 ch->user[ccb->ccb_h.target_id].caps; 2566 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2567 } else { 2568 cts->xport_specific.sata.revision = d->revision; 2569 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2570 cts->xport_specific.sata.caps = d->caps; 2571 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2572 } 2573 cts->xport_specific.sata.mode = d->mode; 2574 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2575 cts->xport_specific.sata.bytecount = d->bytecount; 2576 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2577 cts->xport_specific.sata.pm_present = ch->pm_present; 2578 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2579 cts->xport_specific.sata.tags = d->tags; 2580 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2581 cts->xport_specific.sata.atapi = d->atapi; 2582 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2583 ccb->ccb_h.status = CAM_REQ_CMP; 2584 break; 2585 } 2586 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2587 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2588 ahci_reset(dev); 2589 ccb->ccb_h.status = CAM_REQ_CMP; 2590 break; 2591 case XPT_TERM_IO: /* Terminate the I/O process */ 2592 /* XXX Implement */ 2593 ccb->ccb_h.status = CAM_REQ_INVALID; 2594 break; 2595 case XPT_PATH_INQ: /* Path routing inquiry */ 2596 { 2597 struct ccb_pathinq *cpi = &ccb->cpi; 2598 2599 cpi->version_num = 1; /* XXX??? */ 2600 cpi->hba_inquiry = PI_SDTR_ABLE; 2601 if (ch->caps & AHCI_CAP_SNCQ) 2602 cpi->hba_inquiry |= PI_TAG_ABLE; 2603 if (ch->caps & AHCI_CAP_SPM) 2604 cpi->hba_inquiry |= PI_SATAPM; 2605 cpi->target_sprt = 0; 2606 cpi->hba_misc = PIM_SEQSCAN; 2607 cpi->hba_eng_cnt = 0; 2608 if (ch->caps & AHCI_CAP_SPM) 2609 cpi->max_target = 15; 2610 else 2611 cpi->max_target = 0; 2612 cpi->max_lun = 0; 2613 cpi->initiator_id = 0; 2614 cpi->bus_id = cam_sim_bus(sim); 2615 cpi->base_transfer_speed = 150000; 2616 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2617 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2618 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2619 cpi->unit_number = cam_sim_unit(sim); 2620 cpi->transport = XPORT_SATA; 2621 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2622 cpi->protocol = PROTO_ATA; 2623 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2624 cpi->maxio = MAXPHYS; 2625 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2626 if (pci_get_devid(device_get_parent(dev)) == 0x43801002) 2627 cpi->maxio = min(cpi->maxio, 128 * 512); 2628 cpi->ccb_h.status = CAM_REQ_CMP; 2629 break; 2630 } 2631 default: 2632 ccb->ccb_h.status = CAM_REQ_INVALID; 2633 break; 2634 } 2635 xpt_done(ccb); 2636} 2637 2638static void 2639ahcipoll(struct cam_sim *sim) 2640{ 2641 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2642 2643 ahci_ch_intr(ch->dev); 2644} 2645