ahci_generic.c revision 227701
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 227701 2011-11-19 10:11:50Z hselasky $"); 29 30#include <sys/param.h> 31#include <sys/module.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/ata.h> 35#include <sys/bus.h> 36#include <sys/conf.h> 37#include <sys/endian.h> 38#include <sys/malloc.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/sema.h> 42#include <sys/taskqueue.h> 43#include <vm/uma.h> 44#include <machine/stdarg.h> 45#include <machine/resource.h> 46#include <machine/bus.h> 47#include <sys/rman.h> 48#include <dev/led/led.h> 49#include <dev/pci/pcivar.h> 50#include <dev/pci/pcireg.h> 51#include "ahci.h" 52 53#include <cam/cam.h> 54#include <cam/cam_ccb.h> 55#include <cam/cam_sim.h> 56#include <cam/cam_xpt_sim.h> 57#include <cam/cam_debug.h> 58 59/* local prototypes */ 60static int ahci_setup_interrupt(device_t dev); 61static void ahci_intr(void *data); 62static void ahci_intr_one(void *data); 63static int ahci_suspend(device_t dev); 64static int ahci_resume(device_t dev); 65static int ahci_ch_init(device_t dev); 66static int ahci_ch_deinit(device_t dev); 67static int ahci_ch_suspend(device_t dev); 68static int ahci_ch_resume(device_t dev); 69static void ahci_ch_pm(void *arg); 70static void ahci_ch_intr_locked(void *data); 71static void ahci_ch_intr(void *data); 72static void ahci_ch_led(void *priv, int onoff); 73static int ahci_ctlr_reset(device_t dev); 74static int ahci_ctlr_setup(device_t dev); 75static void ahci_begin_transaction(device_t dev, union ccb *ccb); 76static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 77static void ahci_execute_transaction(struct ahci_slot *slot); 78static void ahci_timeout(struct ahci_slot *slot); 79static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 80static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 81static void ahci_dmainit(device_t dev); 82static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 83static void ahci_dmafini(device_t dev); 84static void ahci_slotsalloc(device_t dev); 85static void ahci_slotsfree(device_t dev); 86static void ahci_reset(device_t dev); 87static void ahci_start(device_t dev, int fbs); 88static void ahci_stop(device_t dev); 89static void ahci_clo(device_t dev); 90static void ahci_start_fr(device_t dev); 91static void ahci_stop_fr(device_t dev); 92 93static int ahci_sata_connect(struct ahci_channel *ch); 94static int ahci_sata_phy_reset(device_t dev); 95static int ahci_wait_ready(device_t dev, int t, int t0); 96 97static void ahci_issue_recovery(device_t dev); 98static void ahci_process_read_log(device_t dev, union ccb *ccb); 99static void ahci_process_request_sense(device_t dev, union ccb *ccb); 100 101static void ahciaction(struct cam_sim *sim, union ccb *ccb); 102static void ahcipoll(struct cam_sim *sim); 103 104static MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 105 106static struct { 107 uint32_t id; 108 uint8_t rev; 109 const char *name; 110 int quirks; 111#define AHCI_Q_NOFORCE 1 112#define AHCI_Q_NOPMP 2 113#define AHCI_Q_NONCQ 4 114#define AHCI_Q_1CH 8 115#define AHCI_Q_2CH 16 116#define AHCI_Q_4CH 32 117#define AHCI_Q_EDGEIS 64 118#define AHCI_Q_SATA2 128 119#define AHCI_Q_NOBSYRES 256 120#define AHCI_Q_NOAA 512 121#define AHCI_Q_NOCOUNT 1024 122#define AHCI_Q_ALTSIG 2048 123} ahci_ids[] = { 124 {0x43801002, 0x00, "ATI IXP600", 0}, 125 {0x43901002, 0x00, "ATI IXP700", 0}, 126 {0x43911002, 0x00, "ATI IXP700", 0}, 127 {0x43921002, 0x00, "ATI IXP700", 0}, 128 {0x43931002, 0x00, "ATI IXP700", 0}, 129 {0x43941002, 0x00, "ATI IXP800", 0}, 130 {0x43951002, 0x00, "ATI IXP800", 0}, 131 {0x06121b21, 0x00, "ASMedia ASM1061", 0}, 132 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 133 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 134 {0x26818086, 0x00, "Intel ESB2", 0}, 135 {0x26828086, 0x00, "Intel ESB2", 0}, 136 {0x26838086, 0x00, "Intel ESB2", 0}, 137 {0x27c18086, 0x00, "Intel ICH7", 0}, 138 {0x27c38086, 0x00, "Intel ICH7", 0}, 139 {0x27c58086, 0x00, "Intel ICH7M", 0}, 140 {0x27c68086, 0x00, "Intel ICH7M", 0}, 141 {0x28218086, 0x00, "Intel ICH8", 0}, 142 {0x28228086, 0x00, "Intel ICH8", 0}, 143 {0x28248086, 0x00, "Intel ICH8", 0}, 144 {0x28298086, 0x00, "Intel ICH8M", 0}, 145 {0x282a8086, 0x00, "Intel ICH8M", 0}, 146 {0x29228086, 0x00, "Intel ICH9", 0}, 147 {0x29238086, 0x00, "Intel ICH9", 0}, 148 {0x29248086, 0x00, "Intel ICH9", 0}, 149 {0x29258086, 0x00, "Intel ICH9", 0}, 150 {0x29278086, 0x00, "Intel ICH9", 0}, 151 {0x29298086, 0x00, "Intel ICH9M", 0}, 152 {0x292a8086, 0x00, "Intel ICH9M", 0}, 153 {0x292b8086, 0x00, "Intel ICH9M", 0}, 154 {0x292c8086, 0x00, "Intel ICH9M", 0}, 155 {0x292f8086, 0x00, "Intel ICH9M", 0}, 156 {0x294d8086, 0x00, "Intel ICH9", 0}, 157 {0x294e8086, 0x00, "Intel ICH9M", 0}, 158 {0x3a058086, 0x00, "Intel ICH10", 0}, 159 {0x3a228086, 0x00, "Intel ICH10", 0}, 160 {0x3a258086, 0x00, "Intel ICH10", 0}, 161 {0x3b228086, 0x00, "Intel 5 Series/3400 Series", 0}, 162 {0x3b238086, 0x00, "Intel 5 Series/3400 Series", 0}, 163 {0x3b258086, 0x00, "Intel 5 Series/3400 Series", 0}, 164 {0x3b298086, 0x00, "Intel 5 Series/3400 Series", 0}, 165 {0x3b2c8086, 0x00, "Intel 5 Series/3400 Series", 0}, 166 {0x3b2f8086, 0x00, "Intel 5 Series/3400 Series", 0}, 167 {0x1c028086, 0x00, "Intel Cougar Point", 0}, 168 {0x1c038086, 0x00, "Intel Cougar Point", 0}, 169 {0x1c048086, 0x00, "Intel Cougar Point", 0}, 170 {0x1c058086, 0x00, "Intel Cougar Point", 0}, 171 {0x1d028086, 0x00, "Intel Patsburg", 0}, 172 {0x1d048086, 0x00, "Intel Patsburg", 0}, 173 {0x1d068086, 0x00, "Intel Patsburg", 0}, 174 {0x1e028086, 0x00, "Intel Panther Point", 0}, 175 {0x1e038086, 0x00, "Intel Panther Point", 0}, 176 {0x1e048086, 0x00, "Intel Panther Point", 0}, 177 {0x1e058086, 0x00, "Intel Panther Point", 0}, 178 {0x1e068086, 0x00, "Intel Panther Point", 0}, 179 {0x1e078086, 0x00, "Intel Panther Point", 0}, 180 {0x1e0e8086, 0x00, "Intel Panther Point", 0}, 181 {0x1e0f8086, 0x00, "Intel Panther Point", 0}, 182 {0x23238086, 0x00, "Intel DH89xxCC", 0}, 183 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 184 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 185 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 186 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 187 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 188 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE | AHCI_Q_1CH | 189 AHCI_Q_EDGEIS}, 190 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE | AHCI_Q_2CH | 191 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 192 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE | AHCI_Q_4CH | 193 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 194 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE | AHCI_Q_4CH | 195 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 196 {0x91201b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_NOBSYRES}, 197 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 198 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 199 {0x91251b4b, 0x00, "Marvell 88SE9125", AHCI_Q_NOBSYRES}, 200 {0x91281b4b, 0x00, "Marvell 88SE9128", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 201 {0x91721b4b, 0x00, "Marvell 88SE9172", AHCI_Q_NOBSYRES}, 202 {0x91821b4b, 0x00, "Marvell 88SE9182", AHCI_Q_NOBSYRES}, 203 {0x06201103, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 204 {0x06201b4b, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 205 {0x06221103, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 206 {0x06221b4b, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 207 {0x06401103, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 208 {0x06401b4b, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 209 {0x06441103, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 210 {0x06441b4b, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 211 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 212 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 213 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 214 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 215 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 216 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 217 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 218 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 219 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 220 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 221 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 222 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 223 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 224 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 225 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 226 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 227 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 228 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 229 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 230 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 231 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 232 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 233 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 234 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 235 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 236 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 237 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 238 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 239 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 240 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 241 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 242 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 243 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 244 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 245 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 246 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 247 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 248 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 249 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 250 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 251 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 252 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 253 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 254 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 255 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 256 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 257 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 258 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 259 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 260 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 261 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 262 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 263 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 264 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 265 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 266 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 267 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 268 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 269 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOFORCE|AHCI_Q_NOAA}, 270 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 271 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 272 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 273 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 274 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 275 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 276 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 277 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 278 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 279 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 280 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 281 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 282 {0x11841039, 0x00, "SiS 966", 0}, 283 {0x11851039, 0x00, "SiS 968", 0}, 284 {0x01861039, 0x00, "SiS 968", 0}, 285 {0x00000000, 0x00, NULL, 0} 286}; 287 288#define recovery_type spriv_field0 289#define RECOVERY_NONE 0 290#define RECOVERY_READ_LOG 1 291#define RECOVERY_REQUEST_SENSE 2 292#define recovery_slot spriv_field1 293 294static int 295ahci_probe(device_t dev) 296{ 297 char buf[64]; 298 int i, valid = 0; 299 uint32_t devid = pci_get_devid(dev); 300 uint8_t revid = pci_get_revid(dev); 301 302 /* Is this a possible AHCI candidate? */ 303 if (pci_get_class(dev) == PCIC_STORAGE && 304 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 305 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 306 valid = 1; 307 /* Is this a known AHCI chip? */ 308 for (i = 0; ahci_ids[i].id != 0; i++) { 309 if (ahci_ids[i].id == devid && 310 ahci_ids[i].rev <= revid && 311 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 312 /* Do not attach JMicrons with single PCI function. */ 313 if (pci_get_vendor(dev) == 0x197b && 314 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 315 return (ENXIO); 316 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 317 ahci_ids[i].name); 318 device_set_desc_copy(dev, buf); 319 return (BUS_PROBE_VENDOR); 320 } 321 } 322 if (!valid) 323 return (ENXIO); 324 device_set_desc_copy(dev, "AHCI SATA controller"); 325 return (BUS_PROBE_VENDOR); 326} 327 328static int 329ahci_ata_probe(device_t dev) 330{ 331 char buf[64]; 332 int i; 333 uint32_t devid = pci_get_devid(dev); 334 uint8_t revid = pci_get_revid(dev); 335 336 if ((intptr_t)device_get_ivars(dev) >= 0) 337 return (ENXIO); 338 /* Is this a known AHCI chip? */ 339 for (i = 0; ahci_ids[i].id != 0; i++) { 340 if (ahci_ids[i].id == devid && 341 ahci_ids[i].rev <= revid) { 342 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 343 ahci_ids[i].name); 344 device_set_desc_copy(dev, buf); 345 return (BUS_PROBE_VENDOR); 346 } 347 } 348 device_set_desc_copy(dev, "AHCI SATA controller"); 349 return (BUS_PROBE_VENDOR); 350} 351 352static int 353ahci_attach(device_t dev) 354{ 355 struct ahci_controller *ctlr = device_get_softc(dev); 356 device_t child; 357 int error, unit, speed, i; 358 uint32_t devid = pci_get_devid(dev); 359 uint8_t revid = pci_get_revid(dev); 360 u_int32_t version; 361 362 ctlr->dev = dev; 363 i = 0; 364 while (ahci_ids[i].id != 0 && 365 (ahci_ids[i].id != devid || 366 ahci_ids[i].rev > revid)) 367 i++; 368 ctlr->quirks = ahci_ids[i].quirks; 369 resource_int_value(device_get_name(dev), 370 device_get_unit(dev), "ccc", &ctlr->ccc); 371 /* if we have a memory BAR(5) we are likely on an AHCI part */ 372 ctlr->r_rid = PCIR_BAR(5); 373 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 374 &ctlr->r_rid, RF_ACTIVE))) 375 return ENXIO; 376 /* Setup our own memory management for channels. */ 377 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 378 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 379 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 380 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 381 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 382 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 383 return (error); 384 } 385 if ((error = rman_manage_region(&ctlr->sc_iomem, 386 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 387 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 388 rman_fini(&ctlr->sc_iomem); 389 return (error); 390 } 391 pci_enable_busmaster(dev); 392 /* Reset controller */ 393 if ((error = ahci_ctlr_reset(dev)) != 0) { 394 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 395 rman_fini(&ctlr->sc_iomem); 396 return (error); 397 }; 398 /* Get the HW capabilities */ 399 version = ATA_INL(ctlr->r_mem, AHCI_VS); 400 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 401 if (version >= 0x00010020) 402 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 403 if (ctlr->caps & AHCI_CAP_EMS) 404 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 405 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 406 407 /* Identify and set separate quirks for HBA and RAID f/w Marvells. */ 408 if ((ctlr->quirks & AHCI_Q_NOBSYRES) && 409 (ctlr->quirks & AHCI_Q_ALTSIG) && 410 (ctlr->caps & AHCI_CAP_SPM) == 0) 411 ctlr->quirks &= ~AHCI_Q_NOBSYRES; 412 413 if (ctlr->quirks & AHCI_Q_1CH) { 414 ctlr->caps &= ~AHCI_CAP_NPMASK; 415 ctlr->ichannels &= 0x01; 416 } 417 if (ctlr->quirks & AHCI_Q_2CH) { 418 ctlr->caps &= ~AHCI_CAP_NPMASK; 419 ctlr->caps |= 1; 420 ctlr->ichannels &= 0x03; 421 } 422 if (ctlr->quirks & AHCI_Q_4CH) { 423 ctlr->caps &= ~AHCI_CAP_NPMASK; 424 ctlr->caps |= 3; 425 ctlr->ichannels &= 0x0f; 426 } 427 ctlr->channels = MAX(flsl(ctlr->ichannels), 428 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 429 if (ctlr->quirks & AHCI_Q_NOPMP) 430 ctlr->caps &= ~AHCI_CAP_SPM; 431 if (ctlr->quirks & AHCI_Q_NONCQ) 432 ctlr->caps &= ~AHCI_CAP_SNCQ; 433 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 434 ctlr->ccc = 0; 435 mtx_init(&ctlr->em_mtx, "AHCI EM lock", NULL, MTX_DEF); 436 ctlr->emloc = ATA_INL(ctlr->r_mem, AHCI_EM_LOC); 437 ahci_ctlr_setup(dev); 438 /* Setup interrupts. */ 439 if (ahci_setup_interrupt(dev)) { 440 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 441 rman_fini(&ctlr->sc_iomem); 442 return ENXIO; 443 } 444 /* Announce HW capabilities. */ 445 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 446 device_printf(dev, 447 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 448 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 449 ((version >> 4) & 0xf0) + (version & 0x0f), 450 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 451 ((speed == 1) ? "1.5":((speed == 2) ? "3": 452 ((speed == 3) ? "6":"?"))), 453 (ctlr->caps & AHCI_CAP_SPM) ? 454 "supported" : "not supported", 455 (ctlr->caps & AHCI_CAP_FBSS) ? 456 " with FBS" : ""); 457 if (bootverbose) { 458 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 459 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 460 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 461 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 462 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 463 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 464 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 465 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 466 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 467 ((speed == 1) ? "1.5":((speed == 2) ? "3": 468 ((speed == 3) ? "6":"?")))); 469 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 470 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 471 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 472 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 473 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 474 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 475 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 476 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 477 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 478 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 479 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 480 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 481 } 482 if (bootverbose && version >= 0x00010020) { 483 device_printf(dev, "Caps2:%s%s%s\n", 484 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 485 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 486 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 487 } 488 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 489 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 490 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 491 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 492 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 493 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 494 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 495 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 496 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 497 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 498 } 499 /* Attach all channels on this controller */ 500 for (unit = 0; unit < ctlr->channels; unit++) { 501 child = device_add_child(dev, "ahcich", -1); 502 if (child == NULL) { 503 device_printf(dev, "failed to add channel device\n"); 504 continue; 505 } 506 device_set_ivars(child, (void *)(intptr_t)unit); 507 if ((ctlr->ichannels & (1 << unit)) == 0) 508 device_disable(child); 509 } 510 bus_generic_attach(dev); 511 return 0; 512} 513 514static int 515ahci_detach(device_t dev) 516{ 517 struct ahci_controller *ctlr = device_get_softc(dev); 518 int i; 519 520 /* Detach & delete all children */ 521 device_delete_all_children(dev); 522 523 /* Free interrupts. */ 524 for (i = 0; i < ctlr->numirqs; i++) { 525 if (ctlr->irqs[i].r_irq) { 526 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 527 ctlr->irqs[i].handle); 528 bus_release_resource(dev, SYS_RES_IRQ, 529 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 530 } 531 } 532 pci_release_msi(dev); 533 /* Free memory. */ 534 rman_fini(&ctlr->sc_iomem); 535 if (ctlr->r_mem) 536 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 537 mtx_destroy(&ctlr->em_mtx); 538 return (0); 539} 540 541static int 542ahci_ctlr_reset(device_t dev) 543{ 544 struct ahci_controller *ctlr = device_get_softc(dev); 545 int timeout; 546 547 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 548 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 549 pci_write_config(dev, 0x92, 0x01, 1); 550 /* Enable AHCI mode */ 551 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 552 /* Reset AHCI controller */ 553 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 554 for (timeout = 1000; timeout > 0; timeout--) { 555 DELAY(1000); 556 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 557 break; 558 } 559 if (timeout == 0) { 560 device_printf(dev, "AHCI controller reset failure\n"); 561 return ENXIO; 562 } 563 /* Reenable AHCI mode */ 564 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 565 return (0); 566} 567 568static int 569ahci_ctlr_setup(device_t dev) 570{ 571 struct ahci_controller *ctlr = device_get_softc(dev); 572 /* Clear interrupts */ 573 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 574 /* Configure CCC */ 575 if (ctlr->ccc) { 576 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 577 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 578 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 579 (4 << AHCI_CCCC_CC_SHIFT) | 580 AHCI_CCCC_EN); 581 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 582 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 583 if (bootverbose) { 584 device_printf(dev, 585 "CCC with %dms/4cmd enabled on vector %d\n", 586 ctlr->ccc, ctlr->cccv); 587 } 588 } 589 /* Enable AHCI interrupts */ 590 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 591 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 592 return (0); 593} 594 595static int 596ahci_suspend(device_t dev) 597{ 598 struct ahci_controller *ctlr = device_get_softc(dev); 599 600 bus_generic_suspend(dev); 601 /* Disable interupts, so the state change(s) doesn't trigger */ 602 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 603 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 604 return 0; 605} 606 607static int 608ahci_resume(device_t dev) 609{ 610 int res; 611 612 if ((res = ahci_ctlr_reset(dev)) != 0) 613 return (res); 614 ahci_ctlr_setup(dev); 615 return (bus_generic_resume(dev)); 616} 617 618static int 619ahci_setup_interrupt(device_t dev) 620{ 621 struct ahci_controller *ctlr = device_get_softc(dev); 622 int i, msi = 1; 623 624 /* Process hints. */ 625 resource_int_value(device_get_name(dev), 626 device_get_unit(dev), "msi", &msi); 627 if (msi < 0) 628 msi = 0; 629 else if (msi == 1) 630 msi = min(1, pci_msi_count(dev)); 631 else if (msi > 1) 632 msi = pci_msi_count(dev); 633 /* Allocate MSI if needed/present. */ 634 if (msi && pci_alloc_msi(dev, &msi) == 0) { 635 ctlr->numirqs = msi; 636 } else { 637 msi = 0; 638 ctlr->numirqs = 1; 639 } 640 /* Check for single MSI vector fallback. */ 641 if (ctlr->numirqs > 1 && 642 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 643 device_printf(dev, "Falling back to one MSI\n"); 644 ctlr->numirqs = 1; 645 } 646 /* Allocate all IRQs. */ 647 for (i = 0; i < ctlr->numirqs; i++) { 648 ctlr->irqs[i].ctlr = ctlr; 649 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 650 if (ctlr->numirqs == 1 || i >= ctlr->channels || 651 (ctlr->ccc && i == ctlr->cccv)) 652 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 653 else if (i == ctlr->numirqs - 1) 654 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 655 else 656 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 657 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 658 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 659 device_printf(dev, "unable to map interrupt\n"); 660 return ENXIO; 661 } 662 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 663 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 664 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 665 /* SOS XXX release r_irq */ 666 device_printf(dev, "unable to setup interrupt\n"); 667 return ENXIO; 668 } 669 if (ctlr->numirqs > 1) { 670 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 671 ctlr->irqs[i].handle, 672 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 673 "ch%d" : "%d", i); 674 } 675 } 676 return (0); 677} 678 679/* 680 * Common case interrupt handler. 681 */ 682static void 683ahci_intr(void *data) 684{ 685 struct ahci_controller_irq *irq = data; 686 struct ahci_controller *ctlr = irq->ctlr; 687 u_int32_t is, ise = 0; 688 void *arg; 689 int unit; 690 691 if (irq->mode == AHCI_IRQ_MODE_ALL) { 692 unit = 0; 693 if (ctlr->ccc) 694 is = ctlr->ichannels; 695 else 696 is = ATA_INL(ctlr->r_mem, AHCI_IS); 697 } else { /* AHCI_IRQ_MODE_AFTER */ 698 unit = irq->r_irq_rid - 1; 699 is = ATA_INL(ctlr->r_mem, AHCI_IS); 700 } 701 /* CCC interrupt is edge triggered. */ 702 if (ctlr->ccc) 703 ise = 1 << ctlr->cccv; 704 /* Some controllers have edge triggered IS. */ 705 if (ctlr->quirks & AHCI_Q_EDGEIS) 706 ise |= is; 707 if (ise != 0) 708 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 709 for (; unit < ctlr->channels; unit++) { 710 if ((is & (1 << unit)) != 0 && 711 (arg = ctlr->interrupt[unit].argument)) { 712 ctlr->interrupt[unit].function(arg); 713 } 714 } 715 /* AHCI declares level triggered IS. */ 716 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 717 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 718} 719 720/* 721 * Simplified interrupt handler for multivector MSI mode. 722 */ 723static void 724ahci_intr_one(void *data) 725{ 726 struct ahci_controller_irq *irq = data; 727 struct ahci_controller *ctlr = irq->ctlr; 728 void *arg; 729 int unit; 730 731 unit = irq->r_irq_rid - 1; 732 /* Some controllers have edge triggered IS. */ 733 if (ctlr->quirks & AHCI_Q_EDGEIS) 734 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 735 if ((arg = ctlr->interrupt[unit].argument)) 736 ctlr->interrupt[unit].function(arg); 737 /* AHCI declares level triggered IS. */ 738 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 739 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 740} 741 742static struct resource * 743ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 744 u_long start, u_long end, u_long count, u_int flags) 745{ 746 struct ahci_controller *ctlr = device_get_softc(dev); 747 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 748 struct resource *res = NULL; 749 int offset = AHCI_OFFSET + (unit << 7); 750 long st; 751 752 switch (type) { 753 case SYS_RES_MEMORY: 754 st = rman_get_start(ctlr->r_mem); 755 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 756 st + offset + 127, 128, RF_ACTIVE, child); 757 if (res) { 758 bus_space_handle_t bsh; 759 bus_space_tag_t bst; 760 bsh = rman_get_bushandle(ctlr->r_mem); 761 bst = rman_get_bustag(ctlr->r_mem); 762 bus_space_subregion(bst, bsh, offset, 128, &bsh); 763 rman_set_bushandle(res, bsh); 764 rman_set_bustag(res, bst); 765 } 766 break; 767 case SYS_RES_IRQ: 768 if (*rid == ATA_IRQ_RID) 769 res = ctlr->irqs[0].r_irq; 770 break; 771 } 772 return (res); 773} 774 775static int 776ahci_release_resource(device_t dev, device_t child, int type, int rid, 777 struct resource *r) 778{ 779 780 switch (type) { 781 case SYS_RES_MEMORY: 782 rman_release_resource(r); 783 return (0); 784 case SYS_RES_IRQ: 785 if (rid != ATA_IRQ_RID) 786 return ENOENT; 787 return (0); 788 } 789 return (EINVAL); 790} 791 792static int 793ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 794 int flags, driver_filter_t *filter, driver_intr_t *function, 795 void *argument, void **cookiep) 796{ 797 struct ahci_controller *ctlr = device_get_softc(dev); 798 int unit = (intptr_t)device_get_ivars(child); 799 800 if (filter != NULL) { 801 printf("ahci.c: we cannot use a filter here\n"); 802 return (EINVAL); 803 } 804 ctlr->interrupt[unit].function = function; 805 ctlr->interrupt[unit].argument = argument; 806 return (0); 807} 808 809static int 810ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 811 void *cookie) 812{ 813 struct ahci_controller *ctlr = device_get_softc(dev); 814 int unit = (intptr_t)device_get_ivars(child); 815 816 ctlr->interrupt[unit].function = NULL; 817 ctlr->interrupt[unit].argument = NULL; 818 return (0); 819} 820 821static int 822ahci_print_child(device_t dev, device_t child) 823{ 824 int retval; 825 826 retval = bus_print_child_header(dev, child); 827 retval += printf(" at channel %d", 828 (int)(intptr_t)device_get_ivars(child)); 829 retval += bus_print_child_footer(dev, child); 830 831 return (retval); 832} 833 834static int 835ahci_child_location_str(device_t dev, device_t child, char *buf, 836 size_t buflen) 837{ 838 839 snprintf(buf, buflen, "channel=%d", 840 (int)(intptr_t)device_get_ivars(child)); 841 return (0); 842} 843 844devclass_t ahci_devclass; 845static device_method_t ahci_methods[] = { 846 DEVMETHOD(device_probe, ahci_probe), 847 DEVMETHOD(device_attach, ahci_attach), 848 DEVMETHOD(device_detach, ahci_detach), 849 DEVMETHOD(device_suspend, ahci_suspend), 850 DEVMETHOD(device_resume, ahci_resume), 851 DEVMETHOD(bus_print_child, ahci_print_child), 852 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 853 DEVMETHOD(bus_release_resource, ahci_release_resource), 854 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 855 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 856 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 857 { 0, 0 } 858}; 859static driver_t ahci_driver = { 860 "ahci", 861 ahci_methods, 862 sizeof(struct ahci_controller) 863}; 864DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 865static device_method_t ahci_ata_methods[] = { 866 DEVMETHOD(device_probe, ahci_ata_probe), 867 DEVMETHOD(device_attach, ahci_attach), 868 DEVMETHOD(device_detach, ahci_detach), 869 DEVMETHOD(device_suspend, ahci_suspend), 870 DEVMETHOD(device_resume, ahci_resume), 871 DEVMETHOD(bus_print_child, ahci_print_child), 872 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 873 DEVMETHOD(bus_release_resource, ahci_release_resource), 874 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 875 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 876 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 877 { 0, 0 } 878}; 879static driver_t ahci_ata_driver = { 880 "ahci", 881 ahci_ata_methods, 882 sizeof(struct ahci_controller) 883}; 884DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 885MODULE_VERSION(ahci, 1); 886MODULE_DEPEND(ahci, cam, 1, 1, 1); 887 888static int 889ahci_ch_probe(device_t dev) 890{ 891 892 device_set_desc_copy(dev, "AHCI channel"); 893 return (0); 894} 895 896static int 897ahci_ch_attach(device_t dev) 898{ 899 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 900 struct ahci_channel *ch = device_get_softc(dev); 901 struct cam_devq *devq; 902 int rid, error, i, sata_rev = 0; 903 u_int32_t version; 904 char buf[32]; 905 906 ch->dev = dev; 907 ch->unit = (intptr_t)device_get_ivars(dev); 908 ch->caps = ctlr->caps; 909 ch->caps2 = ctlr->caps2; 910 ch->quirks = ctlr->quirks; 911 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1; 912 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 913 resource_int_value(device_get_name(dev), 914 device_get_unit(dev), "pm_level", &ch->pm_level); 915 if (ch->pm_level > 3) 916 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 917 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 918 /* Limit speed for my onboard JMicron external port. 919 * It is not eSATA really. */ 920 if (pci_get_devid(ctlr->dev) == 0x2363197b && 921 pci_get_subvendor(ctlr->dev) == 0x1043 && 922 pci_get_subdevice(ctlr->dev) == 0x81e4 && 923 ch->unit == 0) 924 sata_rev = 1; 925 if (ch->quirks & AHCI_Q_SATA2) 926 sata_rev = 2; 927 resource_int_value(device_get_name(dev), 928 device_get_unit(dev), "sata_rev", &sata_rev); 929 for (i = 0; i < 16; i++) { 930 ch->user[i].revision = sata_rev; 931 ch->user[i].mode = 0; 932 ch->user[i].bytecount = 8192; 933 ch->user[i].tags = ch->numslots; 934 ch->user[i].caps = 0; 935 ch->curr[i] = ch->user[i]; 936 if (ch->pm_level) { 937 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 938 CTS_SATA_CAPS_H_APST | 939 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 940 } 941 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA | 942 CTS_SATA_CAPS_H_AN; 943 } 944 rid = ch->unit; 945 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 946 &rid, RF_ACTIVE))) 947 return (ENXIO); 948 ahci_dmainit(dev); 949 ahci_slotsalloc(dev); 950 ahci_ch_init(dev); 951 mtx_lock(&ch->mtx); 952 rid = ATA_IRQ_RID; 953 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 954 &rid, RF_SHAREABLE | RF_ACTIVE))) { 955 device_printf(dev, "Unable to map interrupt\n"); 956 error = ENXIO; 957 goto err0; 958 } 959 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 960 ahci_ch_intr_locked, dev, &ch->ih))) { 961 device_printf(dev, "Unable to setup interrupt\n"); 962 error = ENXIO; 963 goto err1; 964 } 965 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 966 version = ATA_INL(ctlr->r_mem, AHCI_VS); 967 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 968 ch->chcaps |= AHCI_P_CMD_FBSCP; 969 if (bootverbose) { 970 device_printf(dev, "Caps:%s%s%s%s%s\n", 971 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 972 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 973 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 974 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 975 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 976 } 977 /* Create the device queue for our SIM. */ 978 devq = cam_simq_alloc(ch->numslots); 979 if (devq == NULL) { 980 device_printf(dev, "Unable to allocate simq\n"); 981 error = ENOMEM; 982 goto err1; 983 } 984 /* Construct SIM entry */ 985 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 986 device_get_unit(dev), &ch->mtx, 987 min(2, ch->numslots), 988 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 989 devq); 990 if (ch->sim == NULL) { 991 cam_simq_free(devq); 992 device_printf(dev, "unable to allocate sim\n"); 993 error = ENOMEM; 994 goto err1; 995 } 996 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 997 device_printf(dev, "unable to register xpt bus\n"); 998 error = ENXIO; 999 goto err2; 1000 } 1001 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 1002 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1003 device_printf(dev, "unable to create path\n"); 1004 error = ENXIO; 1005 goto err3; 1006 } 1007 if (ch->pm_level > 3) { 1008 callout_reset(&ch->pm_timer, 1009 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 1010 ahci_ch_pm, dev); 1011 } 1012 mtx_unlock(&ch->mtx); 1013 if ((ch->caps & AHCI_CAP_EMS) && 1014 (ctlr->capsem & AHCI_EM_LED)) { 1015 for (i = 0; i < AHCI_NUM_LEDS; i++) { 1016 ch->leds[i].dev = dev; 1017 ch->leds[i].num = i; 1018 } 1019 if ((ctlr->capsem & AHCI_EM_ALHD) == 0) { 1020 snprintf(buf, sizeof(buf), "%s.act", 1021 device_get_nameunit(dev)); 1022 ch->leds[0].led = led_create(ahci_ch_led, 1023 &ch->leds[0], buf); 1024 } 1025 snprintf(buf, sizeof(buf), "%s.locate", 1026 device_get_nameunit(dev)); 1027 ch->leds[1].led = led_create(ahci_ch_led, &ch->leds[1], buf); 1028 snprintf(buf, sizeof(buf), "%s.fault", 1029 device_get_nameunit(dev)); 1030 ch->leds[2].led = led_create(ahci_ch_led, &ch->leds[2], buf); 1031 } 1032 return (0); 1033 1034err3: 1035 xpt_bus_deregister(cam_sim_path(ch->sim)); 1036err2: 1037 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1038err1: 1039 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1040err0: 1041 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1042 mtx_unlock(&ch->mtx); 1043 mtx_destroy(&ch->mtx); 1044 return (error); 1045} 1046 1047static int 1048ahci_ch_detach(device_t dev) 1049{ 1050 struct ahci_channel *ch = device_get_softc(dev); 1051 int i; 1052 1053 for (i = 0; i < AHCI_NUM_LEDS; i++) { 1054 if (ch->leds[i].led) 1055 led_destroy(ch->leds[i].led); 1056 } 1057 mtx_lock(&ch->mtx); 1058 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 1059 /* Forget about reset. */ 1060 if (ch->resetting) { 1061 ch->resetting = 0; 1062 xpt_release_simq(ch->sim, TRUE); 1063 } 1064 xpt_free_path(ch->path); 1065 xpt_bus_deregister(cam_sim_path(ch->sim)); 1066 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1067 mtx_unlock(&ch->mtx); 1068 1069 if (ch->pm_level > 3) 1070 callout_drain(&ch->pm_timer); 1071 callout_drain(&ch->reset_timer); 1072 bus_teardown_intr(dev, ch->r_irq, ch->ih); 1073 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1074 1075 ahci_ch_deinit(dev); 1076 ahci_slotsfree(dev); 1077 ahci_dmafini(dev); 1078 1079 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1080 mtx_destroy(&ch->mtx); 1081 return (0); 1082} 1083 1084static int 1085ahci_ch_init(device_t dev) 1086{ 1087 struct ahci_channel *ch = device_get_softc(dev); 1088 uint64_t work; 1089 1090 /* Disable port interrupts */ 1091 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1092 /* Setup work areas */ 1093 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1094 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1095 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1096 work = ch->dma.rfis_bus; 1097 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1098 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1099 /* Activate the channel and power/spin up device */ 1100 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1101 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1102 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1103 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1104 ahci_start_fr(dev); 1105 ahci_start(dev, 1); 1106 return (0); 1107} 1108 1109static int 1110ahci_ch_deinit(device_t dev) 1111{ 1112 struct ahci_channel *ch = device_get_softc(dev); 1113 1114 /* Disable port interrupts. */ 1115 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1116 /* Reset command register. */ 1117 ahci_stop(dev); 1118 ahci_stop_fr(dev); 1119 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1120 /* Allow everything, including partial and slumber modes. */ 1121 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1122 /* Request slumber mode transition and give some time to get there. */ 1123 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1124 DELAY(100); 1125 /* Disable PHY. */ 1126 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1127 return (0); 1128} 1129 1130static int 1131ahci_ch_suspend(device_t dev) 1132{ 1133 struct ahci_channel *ch = device_get_softc(dev); 1134 1135 mtx_lock(&ch->mtx); 1136 xpt_freeze_simq(ch->sim, 1); 1137 /* Forget about reset. */ 1138 if (ch->resetting) { 1139 ch->resetting = 0; 1140 callout_stop(&ch->reset_timer); 1141 xpt_release_simq(ch->sim, TRUE); 1142 } 1143 while (ch->oslots) 1144 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1145 ahci_ch_deinit(dev); 1146 mtx_unlock(&ch->mtx); 1147 return (0); 1148} 1149 1150static int 1151ahci_ch_resume(device_t dev) 1152{ 1153 struct ahci_channel *ch = device_get_softc(dev); 1154 1155 mtx_lock(&ch->mtx); 1156 ahci_ch_init(dev); 1157 ahci_reset(dev); 1158 xpt_release_simq(ch->sim, TRUE); 1159 mtx_unlock(&ch->mtx); 1160 return (0); 1161} 1162 1163devclass_t ahcich_devclass; 1164static device_method_t ahcich_methods[] = { 1165 DEVMETHOD(device_probe, ahci_ch_probe), 1166 DEVMETHOD(device_attach, ahci_ch_attach), 1167 DEVMETHOD(device_detach, ahci_ch_detach), 1168 DEVMETHOD(device_suspend, ahci_ch_suspend), 1169 DEVMETHOD(device_resume, ahci_ch_resume), 1170 { 0, 0 } 1171}; 1172static driver_t ahcich_driver = { 1173 "ahcich", 1174 ahcich_methods, 1175 sizeof(struct ahci_channel) 1176}; 1177DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1178 1179static void 1180ahci_ch_setleds(device_t dev) 1181{ 1182 struct ahci_channel *ch; 1183 struct ahci_controller *ctlr; 1184 size_t buf; 1185 int i, timeout; 1186 int16_t val; 1187 1188 ctlr = device_get_softc(device_get_parent(dev)); 1189 ch = device_get_softc(dev); 1190 1191 val = 0; 1192 for (i = 0; i < AHCI_NUM_LEDS; i++) 1193 val |= ch->leds[i].state << (i * 3); 1194 1195 buf = (ctlr->emloc & 0xffff0000) >> 14; 1196 mtx_lock(&ctlr->em_mtx); 1197 timeout = 1000; 1198 while (ATA_INL(ctlr->r_mem, AHCI_EM_CTL) & (AHCI_EM_TM | AHCI_EM_RST) && 1199 --timeout > 0) 1200 DELAY(1000); 1201 if (timeout == 0) 1202 device_printf(dev, "EM timeout\n"); 1203 ATA_OUTL(ctlr->r_mem, buf, (1 << 8) | (0 << 16) | (0 << 24)); 1204 ATA_OUTL(ctlr->r_mem, buf + 4, ch->unit | (val << 16)); 1205 ATA_OUTL(ctlr->r_mem, AHCI_EM_CTL, AHCI_EM_TM); 1206 mtx_unlock(&ctlr->em_mtx); 1207} 1208 1209static void 1210ahci_ch_led(void *priv, int onoff) 1211{ 1212 struct ahci_led *led; 1213 1214 led = (struct ahci_led *)priv; 1215 1216 led->state = onoff; 1217 ahci_ch_setleds(led->dev); 1218} 1219 1220struct ahci_dc_cb_args { 1221 bus_addr_t maddr; 1222 int error; 1223}; 1224 1225static void 1226ahci_dmainit(device_t dev) 1227{ 1228 struct ahci_channel *ch = device_get_softc(dev); 1229 struct ahci_dc_cb_args dcba; 1230 size_t rfsize; 1231 1232 if (ch->caps & AHCI_CAP_64BIT) 1233 ch->dma.max_address = BUS_SPACE_MAXADDR; 1234 else 1235 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1236 /* Command area. */ 1237 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1238 ch->dma.max_address, BUS_SPACE_MAXADDR, 1239 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1240 0, NULL, NULL, &ch->dma.work_tag)) 1241 goto error; 1242 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1243 &ch->dma.work_map)) 1244 goto error; 1245 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1246 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1247 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1248 goto error; 1249 } 1250 ch->dma.work_bus = dcba.maddr; 1251 /* FIS receive area. */ 1252 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1253 rfsize = 4096; 1254 else 1255 rfsize = 256; 1256 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1257 ch->dma.max_address, BUS_SPACE_MAXADDR, 1258 NULL, NULL, rfsize, 1, rfsize, 1259 0, NULL, NULL, &ch->dma.rfis_tag)) 1260 goto error; 1261 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1262 &ch->dma.rfis_map)) 1263 goto error; 1264 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1265 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1266 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1267 goto error; 1268 } 1269 ch->dma.rfis_bus = dcba.maddr; 1270 /* Data area. */ 1271 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1272 ch->dma.max_address, BUS_SPACE_MAXADDR, 1273 NULL, NULL, 1274 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1275 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1276 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1277 goto error; 1278 } 1279 return; 1280 1281error: 1282 device_printf(dev, "WARNING - DMA initialization failed\n"); 1283 ahci_dmafini(dev); 1284} 1285 1286static void 1287ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1288{ 1289 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1290 1291 if (!(dcba->error = error)) 1292 dcba->maddr = segs[0].ds_addr; 1293} 1294 1295static void 1296ahci_dmafini(device_t dev) 1297{ 1298 struct ahci_channel *ch = device_get_softc(dev); 1299 1300 if (ch->dma.data_tag) { 1301 bus_dma_tag_destroy(ch->dma.data_tag); 1302 ch->dma.data_tag = NULL; 1303 } 1304 if (ch->dma.rfis_bus) { 1305 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1306 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1307 ch->dma.rfis_bus = 0; 1308 ch->dma.rfis_map = NULL; 1309 ch->dma.rfis = NULL; 1310 } 1311 if (ch->dma.work_bus) { 1312 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1313 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1314 ch->dma.work_bus = 0; 1315 ch->dma.work_map = NULL; 1316 ch->dma.work = NULL; 1317 } 1318 if (ch->dma.work_tag) { 1319 bus_dma_tag_destroy(ch->dma.work_tag); 1320 ch->dma.work_tag = NULL; 1321 } 1322} 1323 1324static void 1325ahci_slotsalloc(device_t dev) 1326{ 1327 struct ahci_channel *ch = device_get_softc(dev); 1328 int i; 1329 1330 /* Alloc and setup command/dma slots */ 1331 bzero(ch->slot, sizeof(ch->slot)); 1332 for (i = 0; i < ch->numslots; i++) { 1333 struct ahci_slot *slot = &ch->slot[i]; 1334 1335 slot->dev = dev; 1336 slot->slot = i; 1337 slot->state = AHCI_SLOT_EMPTY; 1338 slot->ccb = NULL; 1339 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1340 1341 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1342 device_printf(ch->dev, "FAILURE - create data_map\n"); 1343 } 1344} 1345 1346static void 1347ahci_slotsfree(device_t dev) 1348{ 1349 struct ahci_channel *ch = device_get_softc(dev); 1350 int i; 1351 1352 /* Free all dma slots */ 1353 for (i = 0; i < ch->numslots; i++) { 1354 struct ahci_slot *slot = &ch->slot[i]; 1355 1356 callout_drain(&slot->timeout); 1357 if (slot->dma.data_map) { 1358 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1359 slot->dma.data_map = NULL; 1360 } 1361 } 1362} 1363 1364static int 1365ahci_phy_check_events(device_t dev, u_int32_t serr) 1366{ 1367 struct ahci_channel *ch = device_get_softc(dev); 1368 1369 if (((ch->pm_level == 0) && (serr & ATA_SE_PHY_CHANGED)) || 1370 ((ch->pm_level != 0 || ch->listening) && (serr & ATA_SE_EXCHANGED))) { 1371 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1372 union ccb *ccb; 1373 1374 if (bootverbose) { 1375 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1376 device_printf(dev, "CONNECT requested\n"); 1377 else 1378 device_printf(dev, "DISCONNECT requested\n"); 1379 } 1380 ahci_reset(dev); 1381 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1382 return (0); 1383 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1384 cam_sim_path(ch->sim), 1385 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1386 xpt_free_ccb(ccb); 1387 return (0); 1388 } 1389 xpt_rescan(ccb); 1390 return (1); 1391 } 1392 return (0); 1393} 1394 1395static void 1396ahci_cpd_check_events(device_t dev) 1397{ 1398 struct ahci_channel *ch = device_get_softc(dev); 1399 u_int32_t status; 1400 union ccb *ccb; 1401 1402 if (ch->pm_level == 0) 1403 return; 1404 1405 status = ATA_INL(ch->r_mem, AHCI_P_CMD); 1406 if ((status & AHCI_P_CMD_CPD) == 0) 1407 return; 1408 1409 if (bootverbose) { 1410 if (status & AHCI_P_CMD_CPS) { 1411 device_printf(dev, "COLD CONNECT requested\n"); 1412 } else 1413 device_printf(dev, "COLD DISCONNECT requested\n"); 1414 } 1415 ahci_reset(dev); 1416 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1417 return; 1418 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(ch->sim), 1419 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1420 xpt_free_ccb(ccb); 1421 return; 1422 } 1423 xpt_rescan(ccb); 1424} 1425 1426static void 1427ahci_notify_events(device_t dev, u_int32_t status) 1428{ 1429 struct ahci_channel *ch = device_get_softc(dev); 1430 struct cam_path *dpath; 1431 int i; 1432 1433 if (ch->caps & AHCI_CAP_SSNTF) 1434 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1435 if (bootverbose) 1436 device_printf(dev, "SNTF 0x%04x\n", status); 1437 for (i = 0; i < 16; i++) { 1438 if ((status & (1 << i)) == 0) 1439 continue; 1440 if (xpt_create_path(&dpath, NULL, 1441 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1442 xpt_async(AC_SCSI_AEN, dpath, NULL); 1443 xpt_free_path(dpath); 1444 } 1445 } 1446} 1447 1448static void 1449ahci_ch_intr_locked(void *data) 1450{ 1451 device_t dev = (device_t)data; 1452 struct ahci_channel *ch = device_get_softc(dev); 1453 1454 mtx_lock(&ch->mtx); 1455 ahci_ch_intr(data); 1456 mtx_unlock(&ch->mtx); 1457} 1458 1459static void 1460ahci_ch_pm(void *arg) 1461{ 1462 device_t dev = (device_t)arg; 1463 struct ahci_channel *ch = device_get_softc(dev); 1464 uint32_t work; 1465 1466 if (ch->numrslots != 0) 1467 return; 1468 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1469 if (ch->pm_level == 4) 1470 work |= AHCI_P_CMD_PARTIAL; 1471 else 1472 work |= AHCI_P_CMD_SLUMBER; 1473 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1474} 1475 1476static void 1477ahci_ch_intr(void *data) 1478{ 1479 device_t dev = (device_t)data; 1480 struct ahci_channel *ch = device_get_softc(dev); 1481 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1482 enum ahci_err_type et; 1483 int i, ccs, port, reset = 0; 1484 1485 /* Read and clear interrupt statuses. */ 1486 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1487 if (istatus == 0) 1488 return; 1489 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1490 /* Read command statuses. */ 1491 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1492 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1493 if (istatus & AHCI_P_IX_SDB) { 1494 if (ch->caps & AHCI_CAP_SSNTF) 1495 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1496 else if (ch->fbs_enabled) { 1497 u_int8_t *fis = ch->dma.rfis + 0x58; 1498 1499 for (i = 0; i < 16; i++) { 1500 if (fis[1] & 0x80) { 1501 fis[1] &= 0x7f; 1502 sntf |= 1 << i; 1503 } 1504 fis += 256; 1505 } 1506 } else { 1507 u_int8_t *fis = ch->dma.rfis + 0x58; 1508 1509 if (fis[1] & 0x80) 1510 sntf = (1 << (fis[1] & 0x0f)); 1511 } 1512 } 1513 /* Process PHY events */ 1514 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1515 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1516 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1517 if (serr) { 1518 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1519 reset = ahci_phy_check_events(dev, serr); 1520 } 1521 } 1522 /* Process cold presence detection events */ 1523 if ((istatus & AHCI_P_IX_CPD) && !reset) 1524 ahci_cpd_check_events(dev); 1525 /* Process command errors */ 1526 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1527 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1528 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1529 >> AHCI_P_CMD_CCS_SHIFT; 1530//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1531// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1532// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1533 port = -1; 1534 if (ch->fbs_enabled) { 1535 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1536 if (fbs & AHCI_P_FBS_SDE) { 1537 port = (fbs & AHCI_P_FBS_DWE) 1538 >> AHCI_P_FBS_DWE_SHIFT; 1539 } else { 1540 for (i = 0; i < 16; i++) { 1541 if (ch->numrslotspd[i] == 0) 1542 continue; 1543 if (port == -1) 1544 port = i; 1545 else if (port != i) { 1546 port = -2; 1547 break; 1548 } 1549 } 1550 } 1551 } 1552 err = ch->rslots & (cstatus | sstatus); 1553 } else { 1554 ccs = 0; 1555 err = 0; 1556 port = -1; 1557 } 1558 /* Complete all successfull commands. */ 1559 ok = ch->rslots & ~(cstatus | sstatus); 1560 for (i = 0; i < ch->numslots; i++) { 1561 if ((ok >> i) & 1) 1562 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1563 } 1564 /* On error, complete the rest of commands with error statuses. */ 1565 if (err) { 1566 if (ch->frozen) { 1567 union ccb *fccb = ch->frozen; 1568 ch->frozen = NULL; 1569 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1570 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1571 xpt_freeze_devq(fccb->ccb_h.path, 1); 1572 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1573 } 1574 xpt_done(fccb); 1575 } 1576 for (i = 0; i < ch->numslots; i++) { 1577 /* XXX: reqests in loading state. */ 1578 if (((err >> i) & 1) == 0) 1579 continue; 1580 if (port >= 0 && 1581 ch->slot[i].ccb->ccb_h.target_id != port) 1582 continue; 1583 if (istatus & AHCI_P_IX_TFE) { 1584 if (port != -2) { 1585 /* Task File Error */ 1586 if (ch->numtslotspd[ 1587 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1588 /* Untagged operation. */ 1589 if (i == ccs) 1590 et = AHCI_ERR_TFE; 1591 else 1592 et = AHCI_ERR_INNOCENT; 1593 } else { 1594 /* Tagged operation. */ 1595 et = AHCI_ERR_NCQ; 1596 } 1597 } else { 1598 et = AHCI_ERR_TFE; 1599 ch->fatalerr = 1; 1600 } 1601 } else if (istatus & AHCI_P_IX_IF) { 1602 if (ch->numtslots == 0 && i != ccs && port != -2) 1603 et = AHCI_ERR_INNOCENT; 1604 else 1605 et = AHCI_ERR_SATA; 1606 } else 1607 et = AHCI_ERR_INVALID; 1608 ahci_end_transaction(&ch->slot[i], et); 1609 } 1610 /* 1611 * We can't reinit port if there are some other 1612 * commands active, use resume to complete them. 1613 */ 1614 if (ch->rslots != 0 && !ch->recoverycmd) 1615 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1616 } 1617 /* Process NOTIFY events */ 1618 if (sntf) 1619 ahci_notify_events(dev, sntf); 1620} 1621 1622/* Must be called with channel locked. */ 1623static int 1624ahci_check_collision(device_t dev, union ccb *ccb) 1625{ 1626 struct ahci_channel *ch = device_get_softc(dev); 1627 int t = ccb->ccb_h.target_id; 1628 1629 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1630 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1631 /* Tagged command while we have no supported tag free. */ 1632 if (((~ch->oslots) & (0xffffffff >> (32 - 1633 ch->curr[t].tags))) == 0) 1634 return (1); 1635 /* If we have FBS */ 1636 if (ch->fbs_enabled) { 1637 /* Tagged command while untagged are active. */ 1638 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1639 return (1); 1640 } else { 1641 /* Tagged command while untagged are active. */ 1642 if (ch->numrslots != 0 && ch->numtslots == 0) 1643 return (1); 1644 /* Tagged command while tagged to other target is active. */ 1645 if (ch->numtslots != 0 && 1646 ch->taggedtarget != ccb->ccb_h.target_id) 1647 return (1); 1648 } 1649 } else { 1650 /* If we have FBS */ 1651 if (ch->fbs_enabled) { 1652 /* Untagged command while tagged are active. */ 1653 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1654 return (1); 1655 } else { 1656 /* Untagged command while tagged are active. */ 1657 if (ch->numrslots != 0 && ch->numtslots != 0) 1658 return (1); 1659 } 1660 } 1661 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1662 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1663 /* Atomic command while anything active. */ 1664 if (ch->numrslots != 0) 1665 return (1); 1666 } 1667 /* We have some atomic command running. */ 1668 if (ch->aslots != 0) 1669 return (1); 1670 return (0); 1671} 1672 1673/* Must be called with channel locked. */ 1674static void 1675ahci_begin_transaction(device_t dev, union ccb *ccb) 1676{ 1677 struct ahci_channel *ch = device_get_softc(dev); 1678 struct ahci_slot *slot; 1679 int tag, tags; 1680 1681 /* Choose empty slot. */ 1682 tags = ch->numslots; 1683 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1684 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1685 tags = ch->curr[ccb->ccb_h.target_id].tags; 1686 tag = ch->lastslot; 1687 while (1) { 1688 if (tag >= tags) 1689 tag = 0; 1690 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1691 break; 1692 tag++; 1693 }; 1694 ch->lastslot = tag; 1695 /* Occupy chosen slot. */ 1696 slot = &ch->slot[tag]; 1697 slot->ccb = ccb; 1698 /* Stop PM timer. */ 1699 if (ch->numrslots == 0 && ch->pm_level > 3) 1700 callout_stop(&ch->pm_timer); 1701 /* Update channel stats. */ 1702 ch->oslots |= (1 << slot->slot); 1703 ch->numrslots++; 1704 ch->numrslotspd[ccb->ccb_h.target_id]++; 1705 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1706 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1707 ch->numtslots++; 1708 ch->numtslotspd[ccb->ccb_h.target_id]++; 1709 ch->taggedtarget = ccb->ccb_h.target_id; 1710 } 1711 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1712 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1713 ch->aslots |= (1 << slot->slot); 1714 slot->dma.nsegs = 0; 1715 /* If request moves data, setup and load SG list */ 1716 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1717 void *buf; 1718 bus_size_t size; 1719 1720 slot->state = AHCI_SLOT_LOADING; 1721 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1722 buf = ccb->ataio.data_ptr; 1723 size = ccb->ataio.dxfer_len; 1724 } else { 1725 buf = ccb->csio.data_ptr; 1726 size = ccb->csio.dxfer_len; 1727 } 1728 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1729 buf, size, ahci_dmasetprd, slot, 0); 1730 } else 1731 ahci_execute_transaction(slot); 1732} 1733 1734/* Locked by busdma engine. */ 1735static void 1736ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1737{ 1738 struct ahci_slot *slot = arg; 1739 struct ahci_channel *ch = device_get_softc(slot->dev); 1740 struct ahci_cmd_tab *ctp; 1741 struct ahci_dma_prd *prd; 1742 int i; 1743 1744 if (error) { 1745 device_printf(slot->dev, "DMA load error\n"); 1746 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1747 return; 1748 } 1749 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1750 /* Get a piece of the workspace for this request */ 1751 ctp = (struct ahci_cmd_tab *) 1752 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1753 /* Fill S/G table */ 1754 prd = &ctp->prd_tab[0]; 1755 for (i = 0; i < nsegs; i++) { 1756 prd[i].dba = htole64(segs[i].ds_addr); 1757 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1758 } 1759 slot->dma.nsegs = nsegs; 1760 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1761 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1762 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1763 ahci_execute_transaction(slot); 1764} 1765 1766/* Must be called with channel locked. */ 1767static void 1768ahci_execute_transaction(struct ahci_slot *slot) 1769{ 1770 device_t dev = slot->dev; 1771 struct ahci_channel *ch = device_get_softc(dev); 1772 struct ahci_cmd_tab *ctp; 1773 struct ahci_cmd_list *clp; 1774 union ccb *ccb = slot->ccb; 1775 int port = ccb->ccb_h.target_id & 0x0f; 1776 int fis_size, i, softreset; 1777 uint8_t *fis = ch->dma.rfis + 0x40; 1778 uint8_t val; 1779 1780 /* Get a piece of the workspace for this request */ 1781 ctp = (struct ahci_cmd_tab *) 1782 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1783 /* Setup the FIS for this request */ 1784 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1785 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1786 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1787 return; 1788 } 1789 /* Setup the command list entry */ 1790 clp = (struct ahci_cmd_list *) 1791 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1792 clp->cmd_flags = htole16( 1793 (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1794 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1795 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1796 (fis_size / sizeof(u_int32_t)) | 1797 (port << 12)); 1798 clp->prd_length = htole16(slot->dma.nsegs); 1799 /* Special handling for Soft Reset command. */ 1800 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1801 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1802 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1803 softreset = 1; 1804 /* Kick controller into sane state */ 1805 ahci_stop(dev); 1806 ahci_clo(dev); 1807 ahci_start(dev, 0); 1808 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1809 } else { 1810 softreset = 2; 1811 /* Prepare FIS receive area for check. */ 1812 for (i = 0; i < 20; i++) 1813 fis[i] = 0xff; 1814 } 1815 } else 1816 softreset = 0; 1817 clp->bytecount = 0; 1818 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1819 (AHCI_CT_SIZE * slot->slot)); 1820 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1821 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1822 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1823 BUS_DMASYNC_PREREAD); 1824 /* Set ACTIVE bit for NCQ commands. */ 1825 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1826 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1827 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1828 } 1829 /* If FBS is enabled, set PMP port. */ 1830 if (ch->fbs_enabled) { 1831 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1832 (port << AHCI_P_FBS_DEV_SHIFT)); 1833 } 1834 /* Issue command to the controller. */ 1835 slot->state = AHCI_SLOT_RUNNING; 1836 ch->rslots |= (1 << slot->slot); 1837 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1838 /* Device reset commands doesn't interrupt. Poll them. */ 1839 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1840 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || softreset)) { 1841 int count, timeout = ccb->ccb_h.timeout * 100; 1842 enum ahci_err_type et = AHCI_ERR_NONE; 1843 1844 for (count = 0; count < timeout; count++) { 1845 DELAY(10); 1846 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1847 break; 1848 if ((ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) && 1849 softreset != 1) { 1850#if 0 1851 device_printf(ch->dev, 1852 "Poll error on slot %d, TFD: %04x\n", 1853 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1854#endif 1855 et = AHCI_ERR_TFE; 1856 break; 1857 } 1858 /* Workaround for ATI SB600/SB700 chipsets. */ 1859 if (ccb->ccb_h.target_id == 15 && 1860 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1861 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1862 et = AHCI_ERR_TIMEOUT; 1863 break; 1864 } 1865 } 1866 1867 /* Marvell controllers do not wait for readyness. */ 1868 if ((ch->quirks & AHCI_Q_NOBSYRES) && softreset == 2 && 1869 et == AHCI_ERR_NONE) { 1870 while ((val = fis[2]) & ATA_S_BUSY) { 1871 DELAY(10); 1872 if (count++ >= timeout) 1873 break; 1874 } 1875 } 1876 1877 if (timeout && (count >= timeout)) { 1878 device_printf(dev, "Poll timeout on slot %d port %d\n", 1879 slot->slot, port); 1880 device_printf(dev, "is %08x cs %08x ss %08x " 1881 "rs %08x tfd %02x serr %08x cmd %08x\n", 1882 ATA_INL(ch->r_mem, AHCI_P_IS), 1883 ATA_INL(ch->r_mem, AHCI_P_CI), 1884 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1885 ATA_INL(ch->r_mem, AHCI_P_TFD), 1886 ATA_INL(ch->r_mem, AHCI_P_SERR), 1887 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1888 et = AHCI_ERR_TIMEOUT; 1889 } 1890 1891 /* Kick controller into sane state and enable FBS. */ 1892 if (softreset == 2) 1893 ch->eslots |= (1 << slot->slot); 1894 ahci_end_transaction(slot, et); 1895 return; 1896 } 1897 /* Start command execution timeout */ 1898 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1899 (timeout_t*)ahci_timeout, slot); 1900 return; 1901} 1902 1903/* Must be called with channel locked. */ 1904static void 1905ahci_process_timeout(device_t dev) 1906{ 1907 struct ahci_channel *ch = device_get_softc(dev); 1908 int i; 1909 1910 mtx_assert(&ch->mtx, MA_OWNED); 1911 /* Handle the rest of commands. */ 1912 for (i = 0; i < ch->numslots; i++) { 1913 /* Do we have a running request on slot? */ 1914 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1915 continue; 1916 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1917 } 1918} 1919 1920/* Must be called with channel locked. */ 1921static void 1922ahci_rearm_timeout(device_t dev) 1923{ 1924 struct ahci_channel *ch = device_get_softc(dev); 1925 int i; 1926 1927 mtx_assert(&ch->mtx, MA_OWNED); 1928 for (i = 0; i < ch->numslots; i++) { 1929 struct ahci_slot *slot = &ch->slot[i]; 1930 1931 /* Do we have a running request on slot? */ 1932 if (slot->state < AHCI_SLOT_RUNNING) 1933 continue; 1934 if ((ch->toslots & (1 << i)) == 0) 1935 continue; 1936 callout_reset(&slot->timeout, 1937 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1938 (timeout_t*)ahci_timeout, slot); 1939 } 1940} 1941 1942/* Locked by callout mechanism. */ 1943static void 1944ahci_timeout(struct ahci_slot *slot) 1945{ 1946 device_t dev = slot->dev; 1947 struct ahci_channel *ch = device_get_softc(dev); 1948 uint32_t sstatus; 1949 int ccs; 1950 int i; 1951 1952 /* Check for stale timeout. */ 1953 if (slot->state < AHCI_SLOT_RUNNING) 1954 return; 1955 1956 /* Check if slot was not being executed last time we checked. */ 1957 if (slot->state < AHCI_SLOT_EXECUTING) { 1958 /* Check if slot started executing. */ 1959 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1960 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1961 >> AHCI_P_CMD_CCS_SHIFT; 1962 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1963 ch->fbs_enabled || ch->wrongccs) 1964 slot->state = AHCI_SLOT_EXECUTING; 1965 else if ((ch->rslots & (1 << ccs)) == 0) { 1966 ch->wrongccs = 1; 1967 slot->state = AHCI_SLOT_EXECUTING; 1968 } 1969 1970 callout_reset(&slot->timeout, 1971 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1972 (timeout_t*)ahci_timeout, slot); 1973 return; 1974 } 1975 1976 device_printf(dev, "Timeout on slot %d port %d\n", 1977 slot->slot, slot->ccb->ccb_h.target_id & 0x0f); 1978 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x " 1979 "serr %08x cmd %08x\n", 1980 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1981 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1982 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR), 1983 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1984 1985 /* Handle frozen command. */ 1986 if (ch->frozen) { 1987 union ccb *fccb = ch->frozen; 1988 ch->frozen = NULL; 1989 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1990 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1991 xpt_freeze_devq(fccb->ccb_h.path, 1); 1992 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1993 } 1994 xpt_done(fccb); 1995 } 1996 if (!ch->fbs_enabled && !ch->wrongccs) { 1997 /* Without FBS we know real timeout source. */ 1998 ch->fatalerr = 1; 1999 /* Handle command with timeout. */ 2000 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 2001 /* Handle the rest of commands. */ 2002 for (i = 0; i < ch->numslots; i++) { 2003 /* Do we have a running request on slot? */ 2004 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2005 continue; 2006 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2007 } 2008 } else { 2009 /* With FBS we wait for other commands timeout and pray. */ 2010 if (ch->toslots == 0) 2011 xpt_freeze_simq(ch->sim, 1); 2012 ch->toslots |= (1 << slot->slot); 2013 if ((ch->rslots & ~ch->toslots) == 0) 2014 ahci_process_timeout(dev); 2015 else 2016 device_printf(dev, " ... waiting for slots %08x\n", 2017 ch->rslots & ~ch->toslots); 2018 } 2019} 2020 2021/* Must be called with channel locked. */ 2022static void 2023ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 2024{ 2025 device_t dev = slot->dev; 2026 struct ahci_channel *ch = device_get_softc(dev); 2027 union ccb *ccb = slot->ccb; 2028 struct ahci_cmd_list *clp; 2029 int lastto; 2030 uint32_t sig; 2031 2032 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 2033 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2034 clp = (struct ahci_cmd_list *) 2035 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 2036 /* Read result registers to the result struct 2037 * May be incorrect if several commands finished same time, 2038 * so read only when sure or have to. 2039 */ 2040 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2041 struct ata_res *res = &ccb->ataio.res; 2042 2043 if ((et == AHCI_ERR_TFE) || 2044 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 2045 u_int8_t *fis = ch->dma.rfis + 0x40; 2046 2047 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 2048 BUS_DMASYNC_POSTREAD); 2049 if (ch->fbs_enabled) { 2050 fis += ccb->ccb_h.target_id * 256; 2051 res->status = fis[2]; 2052 res->error = fis[3]; 2053 } else { 2054 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 2055 2056 res->status = tfd; 2057 res->error = tfd >> 8; 2058 } 2059 res->lba_low = fis[4]; 2060 res->lba_mid = fis[5]; 2061 res->lba_high = fis[6]; 2062 res->device = fis[7]; 2063 res->lba_low_exp = fis[8]; 2064 res->lba_mid_exp = fis[9]; 2065 res->lba_high_exp = fis[10]; 2066 res->sector_count = fis[12]; 2067 res->sector_count_exp = fis[13]; 2068 2069 /* 2070 * Some weird controllers do not return signature in 2071 * FIS receive area. Read it from PxSIG register. 2072 */ 2073 if ((ch->quirks & AHCI_Q_ALTSIG) && 2074 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2075 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 2076 sig = ATA_INL(ch->r_mem, AHCI_P_SIG); 2077 res->lba_high = sig >> 24; 2078 res->lba_mid = sig >> 16; 2079 res->lba_low = sig >> 8; 2080 res->sector_count = sig; 2081 } 2082 } else 2083 bzero(res, sizeof(*res)); 2084 if ((ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) == 0 && 2085 (ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2086 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2087 ccb->ataio.resid = 2088 ccb->ataio.dxfer_len - le32toh(clp->bytecount); 2089 } 2090 } else { 2091 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2092 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2093 ccb->csio.resid = 2094 ccb->csio.dxfer_len - le32toh(clp->bytecount); 2095 } 2096 } 2097 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2098 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 2099 (ccb->ccb_h.flags & CAM_DIR_IN) ? 2100 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2101 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 2102 } 2103 if (et != AHCI_ERR_NONE) 2104 ch->eslots |= (1 << slot->slot); 2105 /* In case of error, freeze device for proper recovery. */ 2106 if ((et != AHCI_ERR_NONE) && (!ch->recoverycmd) && 2107 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 2108 xpt_freeze_devq(ccb->ccb_h.path, 1); 2109 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2110 } 2111 /* Set proper result status. */ 2112 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2113 switch (et) { 2114 case AHCI_ERR_NONE: 2115 ccb->ccb_h.status |= CAM_REQ_CMP; 2116 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 2117 ccb->csio.scsi_status = SCSI_STATUS_OK; 2118 break; 2119 case AHCI_ERR_INVALID: 2120 ch->fatalerr = 1; 2121 ccb->ccb_h.status |= CAM_REQ_INVALID; 2122 break; 2123 case AHCI_ERR_INNOCENT: 2124 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 2125 break; 2126 case AHCI_ERR_TFE: 2127 case AHCI_ERR_NCQ: 2128 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2129 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 2130 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 2131 } else { 2132 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2133 } 2134 break; 2135 case AHCI_ERR_SATA: 2136 ch->fatalerr = 1; 2137 if (!ch->recoverycmd) { 2138 xpt_freeze_simq(ch->sim, 1); 2139 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2140 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2141 } 2142 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 2143 break; 2144 case AHCI_ERR_TIMEOUT: 2145 if (!ch->recoverycmd) { 2146 xpt_freeze_simq(ch->sim, 1); 2147 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2148 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2149 } 2150 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2151 break; 2152 default: 2153 ch->fatalerr = 1; 2154 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 2155 } 2156 /* Free slot. */ 2157 ch->oslots &= ~(1 << slot->slot); 2158 ch->rslots &= ~(1 << slot->slot); 2159 ch->aslots &= ~(1 << slot->slot); 2160 slot->state = AHCI_SLOT_EMPTY; 2161 slot->ccb = NULL; 2162 /* Update channel stats. */ 2163 ch->numrslots--; 2164 ch->numrslotspd[ccb->ccb_h.target_id]--; 2165 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2166 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 2167 ch->numtslots--; 2168 ch->numtslotspd[ccb->ccb_h.target_id]--; 2169 } 2170 /* Cancel timeout state if request completed normally. */ 2171 if (et != AHCI_ERR_TIMEOUT) { 2172 lastto = (ch->toslots == (1 << slot->slot)); 2173 ch->toslots &= ~(1 << slot->slot); 2174 if (lastto) 2175 xpt_release_simq(ch->sim, TRUE); 2176 } 2177 /* If it was first request of reset sequence and there is no error, 2178 * proceed to second request. */ 2179 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2180 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2181 (ccb->ataio.cmd.control & ATA_A_RESET) && 2182 et == AHCI_ERR_NONE) { 2183 ccb->ataio.cmd.control &= ~ATA_A_RESET; 2184 ahci_begin_transaction(dev, ccb); 2185 return; 2186 } 2187 /* If it was our READ LOG command - process it. */ 2188 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 2189 ahci_process_read_log(dev, ccb); 2190 /* If it was our REQUEST SENSE command - process it. */ 2191 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 2192 ahci_process_request_sense(dev, ccb); 2193 /* If it was NCQ or ATAPI command error, put result on hold. */ 2194 } else if (et == AHCI_ERR_NCQ || 2195 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 2196 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 2197 ch->hold[slot->slot] = ccb; 2198 ch->numhslots++; 2199 } else 2200 xpt_done(ccb); 2201 /* If we have no other active commands, ... */ 2202 if (ch->rslots == 0) { 2203 /* if there was fatal error - reset port. */ 2204 if (ch->toslots != 0 || ch->fatalerr) { 2205 ahci_reset(dev); 2206 } else { 2207 /* if we have slots in error, we can reinit port. */ 2208 if (ch->eslots != 0) { 2209 ahci_stop(dev); 2210 ahci_clo(dev); 2211 ahci_start(dev, 1); 2212 } 2213 /* if there commands on hold, we can do READ LOG. */ 2214 if (!ch->recoverycmd && ch->numhslots) 2215 ahci_issue_recovery(dev); 2216 } 2217 /* If all the rest of commands are in timeout - give them chance. */ 2218 } else if ((ch->rslots & ~ch->toslots) == 0 && 2219 et != AHCI_ERR_TIMEOUT) 2220 ahci_rearm_timeout(dev); 2221 /* Unfreeze frozen command. */ 2222 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 2223 union ccb *fccb = ch->frozen; 2224 ch->frozen = NULL; 2225 ahci_begin_transaction(dev, fccb); 2226 xpt_release_simq(ch->sim, TRUE); 2227 } 2228 /* Start PM timer. */ 2229 if (ch->numrslots == 0 && ch->pm_level > 3 && 2230 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2231 callout_schedule(&ch->pm_timer, 2232 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2233 } 2234} 2235 2236static void 2237ahci_issue_recovery(device_t dev) 2238{ 2239 struct ahci_channel *ch = device_get_softc(dev); 2240 union ccb *ccb; 2241 struct ccb_ataio *ataio; 2242 struct ccb_scsiio *csio; 2243 int i; 2244 2245 /* Find some held command. */ 2246 for (i = 0; i < ch->numslots; i++) { 2247 if (ch->hold[i]) 2248 break; 2249 } 2250 ccb = xpt_alloc_ccb_nowait(); 2251 if (ccb == NULL) { 2252 device_printf(dev, "Unable to allocate recovery command\n"); 2253completeall: 2254 /* We can't do anything -- complete held commands. */ 2255 for (i = 0; i < ch->numslots; i++) { 2256 if (ch->hold[i] == NULL) 2257 continue; 2258 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2259 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 2260 xpt_done(ch->hold[i]); 2261 ch->hold[i] = NULL; 2262 ch->numhslots--; 2263 } 2264 ahci_reset(dev); 2265 return; 2266 } 2267 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2268 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2269 /* READ LOG */ 2270 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 2271 ccb->ccb_h.func_code = XPT_ATA_IO; 2272 ccb->ccb_h.flags = CAM_DIR_IN; 2273 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2274 ataio = &ccb->ataio; 2275 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2276 if (ataio->data_ptr == NULL) { 2277 xpt_free_ccb(ccb); 2278 device_printf(dev, 2279 "Unable to allocate memory for READ LOG command\n"); 2280 goto completeall; 2281 } 2282 ataio->dxfer_len = 512; 2283 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2284 ataio->cmd.flags = CAM_ATAIO_48BIT; 2285 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2286 ataio->cmd.sector_count = 1; 2287 ataio->cmd.sector_count_exp = 0; 2288 ataio->cmd.lba_low = 0x10; 2289 ataio->cmd.lba_mid = 0; 2290 ataio->cmd.lba_mid_exp = 0; 2291 } else { 2292 /* REQUEST SENSE */ 2293 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 2294 ccb->ccb_h.recovery_slot = i; 2295 ccb->ccb_h.func_code = XPT_SCSI_IO; 2296 ccb->ccb_h.flags = CAM_DIR_IN; 2297 ccb->ccb_h.status = 0; 2298 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2299 csio = &ccb->csio; 2300 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 2301 csio->dxfer_len = ch->hold[i]->csio.sense_len; 2302 csio->cdb_len = 6; 2303 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 2304 csio->cdb_io.cdb_bytes[0] = 0x03; 2305 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 2306 } 2307 /* Freeze SIM while doing recovery. */ 2308 ch->recoverycmd = 1; 2309 xpt_freeze_simq(ch->sim, 1); 2310 ahci_begin_transaction(dev, ccb); 2311} 2312 2313static void 2314ahci_process_read_log(device_t dev, union ccb *ccb) 2315{ 2316 struct ahci_channel *ch = device_get_softc(dev); 2317 uint8_t *data; 2318 struct ata_res *res; 2319 int i; 2320 2321 ch->recoverycmd = 0; 2322 2323 data = ccb->ataio.data_ptr; 2324 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2325 (data[0] & 0x80) == 0) { 2326 for (i = 0; i < ch->numslots; i++) { 2327 if (!ch->hold[i]) 2328 continue; 2329 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2330 continue; 2331 if ((data[0] & 0x1F) == i) { 2332 res = &ch->hold[i]->ataio.res; 2333 res->status = data[2]; 2334 res->error = data[3]; 2335 res->lba_low = data[4]; 2336 res->lba_mid = data[5]; 2337 res->lba_high = data[6]; 2338 res->device = data[7]; 2339 res->lba_low_exp = data[8]; 2340 res->lba_mid_exp = data[9]; 2341 res->lba_high_exp = data[10]; 2342 res->sector_count = data[12]; 2343 res->sector_count_exp = data[13]; 2344 } else { 2345 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2346 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2347 } 2348 xpt_done(ch->hold[i]); 2349 ch->hold[i] = NULL; 2350 ch->numhslots--; 2351 } 2352 } else { 2353 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2354 device_printf(dev, "Error while READ LOG EXT\n"); 2355 else if ((data[0] & 0x80) == 0) { 2356 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2357 } 2358 for (i = 0; i < ch->numslots; i++) { 2359 if (!ch->hold[i]) 2360 continue; 2361 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2362 continue; 2363 xpt_done(ch->hold[i]); 2364 ch->hold[i] = NULL; 2365 ch->numhslots--; 2366 } 2367 } 2368 free(ccb->ataio.data_ptr, M_AHCI); 2369 xpt_free_ccb(ccb); 2370 xpt_release_simq(ch->sim, TRUE); 2371} 2372 2373static void 2374ahci_process_request_sense(device_t dev, union ccb *ccb) 2375{ 2376 struct ahci_channel *ch = device_get_softc(dev); 2377 int i; 2378 2379 ch->recoverycmd = 0; 2380 2381 i = ccb->ccb_h.recovery_slot; 2382 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 2383 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 2384 } else { 2385 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2386 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 2387 } 2388 xpt_done(ch->hold[i]); 2389 ch->hold[i] = NULL; 2390 ch->numhslots--; 2391 xpt_free_ccb(ccb); 2392 xpt_release_simq(ch->sim, TRUE); 2393} 2394 2395static void 2396ahci_start(device_t dev, int fbs) 2397{ 2398 struct ahci_channel *ch = device_get_softc(dev); 2399 u_int32_t cmd; 2400 2401 /* Clear SATA error register */ 2402 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2403 /* Clear any interrupts pending on this channel */ 2404 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2405 /* Configure FIS-based switching if supported. */ 2406 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2407 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2408 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2409 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2410 } 2411 /* Start operations on this channel */ 2412 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2413 cmd &= ~AHCI_P_CMD_PMA; 2414 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2415 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2416} 2417 2418static void 2419ahci_stop(device_t dev) 2420{ 2421 struct ahci_channel *ch = device_get_softc(dev); 2422 u_int32_t cmd; 2423 int timeout; 2424 2425 /* Kill all activity on this channel */ 2426 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2427 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2428 /* Wait for activity stop. */ 2429 timeout = 0; 2430 do { 2431 DELAY(10); 2432 if (timeout++ > 50000) { 2433 device_printf(dev, "stopping AHCI engine failed\n"); 2434 break; 2435 } 2436 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2437 ch->eslots = 0; 2438} 2439 2440static void 2441ahci_clo(device_t dev) 2442{ 2443 struct ahci_channel *ch = device_get_softc(dev); 2444 u_int32_t cmd; 2445 int timeout; 2446 2447 /* Issue Command List Override if supported */ 2448 if (ch->caps & AHCI_CAP_SCLO) { 2449 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2450 cmd |= AHCI_P_CMD_CLO; 2451 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2452 timeout = 0; 2453 do { 2454 DELAY(10); 2455 if (timeout++ > 50000) { 2456 device_printf(dev, "executing CLO failed\n"); 2457 break; 2458 } 2459 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2460 } 2461} 2462 2463static void 2464ahci_stop_fr(device_t dev) 2465{ 2466 struct ahci_channel *ch = device_get_softc(dev); 2467 u_int32_t cmd; 2468 int timeout; 2469 2470 /* Kill all FIS reception on this channel */ 2471 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2472 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2473 /* Wait for FIS reception stop. */ 2474 timeout = 0; 2475 do { 2476 DELAY(10); 2477 if (timeout++ > 50000) { 2478 device_printf(dev, "stopping AHCI FR engine failed\n"); 2479 break; 2480 } 2481 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2482} 2483 2484static void 2485ahci_start_fr(device_t dev) 2486{ 2487 struct ahci_channel *ch = device_get_softc(dev); 2488 u_int32_t cmd; 2489 2490 /* Start FIS reception on this channel */ 2491 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2492 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2493} 2494 2495static int 2496ahci_wait_ready(device_t dev, int t, int t0) 2497{ 2498 struct ahci_channel *ch = device_get_softc(dev); 2499 int timeout = 0; 2500 uint32_t val; 2501 2502 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2503 (ATA_S_BUSY | ATA_S_DRQ)) { 2504 if (timeout > t) { 2505 if (t != 0) { 2506 device_printf(dev, 2507 "AHCI reset: device not ready after %dms " 2508 "(tfd = %08x)\n", 2509 MAX(t, 0) + t0, val); 2510 } 2511 return (EBUSY); 2512 } 2513 DELAY(1000); 2514 timeout++; 2515 } 2516 if (bootverbose) 2517 device_printf(dev, "AHCI reset: device ready after %dms\n", 2518 timeout + t0); 2519 return (0); 2520} 2521 2522static void 2523ahci_reset_to(void *arg) 2524{ 2525 device_t dev = arg; 2526 struct ahci_channel *ch = device_get_softc(dev); 2527 2528 if (ch->resetting == 0) 2529 return; 2530 ch->resetting--; 2531 if (ahci_wait_ready(dev, ch->resetting == 0 ? -1 : 0, 2532 (310 - ch->resetting) * 100) == 0) { 2533 ch->resetting = 0; 2534 ahci_start(dev, 1); 2535 xpt_release_simq(ch->sim, TRUE); 2536 return; 2537 } 2538 if (ch->resetting == 0) { 2539 ahci_clo(dev); 2540 ahci_start(dev, 1); 2541 xpt_release_simq(ch->sim, TRUE); 2542 return; 2543 } 2544 callout_schedule(&ch->reset_timer, hz / 10); 2545} 2546 2547static void 2548ahci_reset(device_t dev) 2549{ 2550 struct ahci_channel *ch = device_get_softc(dev); 2551 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2552 int i; 2553 2554 xpt_freeze_simq(ch->sim, 1); 2555 if (bootverbose) 2556 device_printf(dev, "AHCI reset...\n"); 2557 /* Forget about previous reset. */ 2558 if (ch->resetting) { 2559 ch->resetting = 0; 2560 callout_stop(&ch->reset_timer); 2561 xpt_release_simq(ch->sim, TRUE); 2562 } 2563 /* Requeue freezed command. */ 2564 if (ch->frozen) { 2565 union ccb *fccb = ch->frozen; 2566 ch->frozen = NULL; 2567 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2568 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2569 xpt_freeze_devq(fccb->ccb_h.path, 1); 2570 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2571 } 2572 xpt_done(fccb); 2573 } 2574 /* Kill the engine and requeue all running commands. */ 2575 ahci_stop(dev); 2576 for (i = 0; i < ch->numslots; i++) { 2577 /* Do we have a running request on slot? */ 2578 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2579 continue; 2580 /* XXX; Commands in loading state. */ 2581 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2582 } 2583 for (i = 0; i < ch->numslots; i++) { 2584 if (!ch->hold[i]) 2585 continue; 2586 xpt_done(ch->hold[i]); 2587 ch->hold[i] = NULL; 2588 ch->numhslots--; 2589 } 2590 if (ch->toslots != 0) 2591 xpt_release_simq(ch->sim, TRUE); 2592 ch->eslots = 0; 2593 ch->toslots = 0; 2594 ch->wrongccs = 0; 2595 ch->fatalerr = 0; 2596 /* Tell the XPT about the event */ 2597 xpt_async(AC_BUS_RESET, ch->path, NULL); 2598 /* Disable port interrupts */ 2599 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2600 /* Reset and reconnect PHY, */ 2601 if (!ahci_sata_phy_reset(dev)) { 2602 if (bootverbose) 2603 device_printf(dev, 2604 "AHCI reset: device not found\n"); 2605 ch->devices = 0; 2606 /* Enable wanted port interrupts */ 2607 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2608 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2609 AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2610 xpt_release_simq(ch->sim, TRUE); 2611 return; 2612 } 2613 if (bootverbose) 2614 device_printf(dev, "AHCI reset: device found\n"); 2615 /* Wait for clearing busy status. */ 2616 if (ahci_wait_ready(dev, dumping ? 31000 : 0, 0)) { 2617 if (dumping) 2618 ahci_clo(dev); 2619 else 2620 ch->resetting = 310; 2621 } 2622 ch->devices = 1; 2623 /* Enable wanted port interrupts */ 2624 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2625 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2626 AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2627 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2628 ((ch->pm_level == 0) ? AHCI_P_IX_PRC : 0) | AHCI_P_IX_PC | 2629 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2630 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2631 if (ch->resetting) 2632 callout_reset(&ch->reset_timer, hz / 10, ahci_reset_to, dev); 2633 else { 2634 ahci_start(dev, 1); 2635 xpt_release_simq(ch->sim, TRUE); 2636 } 2637} 2638 2639static int 2640ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2641{ 2642 struct ahci_channel *ch = device_get_softc(dev); 2643 u_int8_t *fis = &ctp->cfis[0]; 2644 2645 bzero(ctp->cfis, 64); 2646 fis[0] = 0x27; /* host to device */ 2647 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2648 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2649 fis[1] |= 0x80; 2650 fis[2] = ATA_PACKET_CMD; 2651 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2652 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2653 fis[3] = ATA_F_DMA; 2654 else { 2655 fis[5] = ccb->csio.dxfer_len; 2656 fis[6] = ccb->csio.dxfer_len >> 8; 2657 } 2658 fis[7] = ATA_D_LBA; 2659 fis[15] = ATA_A_4BIT; 2660 bzero(ctp->acmd, 32); 2661 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2662 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2663 ctp->acmd, ccb->csio.cdb_len); 2664 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2665 fis[1] |= 0x80; 2666 fis[2] = ccb->ataio.cmd.command; 2667 fis[3] = ccb->ataio.cmd.features; 2668 fis[4] = ccb->ataio.cmd.lba_low; 2669 fis[5] = ccb->ataio.cmd.lba_mid; 2670 fis[6] = ccb->ataio.cmd.lba_high; 2671 fis[7] = ccb->ataio.cmd.device; 2672 fis[8] = ccb->ataio.cmd.lba_low_exp; 2673 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2674 fis[10] = ccb->ataio.cmd.lba_high_exp; 2675 fis[11] = ccb->ataio.cmd.features_exp; 2676 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2677 fis[12] = tag << 3; 2678 fis[13] = 0; 2679 } else { 2680 fis[12] = ccb->ataio.cmd.sector_count; 2681 fis[13] = ccb->ataio.cmd.sector_count_exp; 2682 } 2683 fis[15] = ATA_A_4BIT; 2684 } else { 2685 fis[15] = ccb->ataio.cmd.control; 2686 } 2687 return (20); 2688} 2689 2690static int 2691ahci_sata_connect(struct ahci_channel *ch) 2692{ 2693 u_int32_t status; 2694 int timeout, found = 0; 2695 2696 /* Wait up to 100ms for "connect well" */ 2697 for (timeout = 0; timeout < 1000 ; timeout++) { 2698 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2699 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 2700 found = 1; 2701 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2702 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2703 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2704 break; 2705 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2706 if (bootverbose) { 2707 device_printf(ch->dev, "SATA offline status=%08x\n", 2708 status); 2709 } 2710 return (0); 2711 } 2712 if (found == 0 && timeout >= 100) 2713 break; 2714 DELAY(100); 2715 } 2716 if (timeout >= 1000 || !found) { 2717 if (bootverbose) { 2718 device_printf(ch->dev, 2719 "SATA connect timeout time=%dus status=%08x\n", 2720 timeout * 100, status); 2721 } 2722 return (0); 2723 } 2724 if (bootverbose) { 2725 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2726 timeout * 100, status); 2727 } 2728 /* Clear SATA error register */ 2729 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2730 return (1); 2731} 2732 2733static int 2734ahci_sata_phy_reset(device_t dev) 2735{ 2736 struct ahci_channel *ch = device_get_softc(dev); 2737 int sata_rev; 2738 uint32_t val; 2739 2740 if (ch->listening) { 2741 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2742 val |= AHCI_P_CMD_SUD; 2743 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2744 ch->listening = 0; 2745 } 2746 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2747 if (sata_rev == 1) 2748 val = ATA_SC_SPD_SPEED_GEN1; 2749 else if (sata_rev == 2) 2750 val = ATA_SC_SPD_SPEED_GEN2; 2751 else if (sata_rev == 3) 2752 val = ATA_SC_SPD_SPEED_GEN3; 2753 else 2754 val = 0; 2755 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2756 ATA_SC_DET_RESET | val | 2757 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2758 DELAY(1000); 2759 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2760 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2761 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2762 if (!ahci_sata_connect(ch)) { 2763 if (ch->caps & AHCI_CAP_SSS) { 2764 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2765 val &= ~AHCI_P_CMD_SUD; 2766 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2767 ch->listening = 1; 2768 } else if (ch->pm_level > 0) 2769 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2770 return (0); 2771 } 2772 return (1); 2773} 2774 2775static int 2776ahci_check_ids(device_t dev, union ccb *ccb) 2777{ 2778 struct ahci_channel *ch = device_get_softc(dev); 2779 2780 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2781 ccb->ccb_h.status = CAM_TID_INVALID; 2782 xpt_done(ccb); 2783 return (-1); 2784 } 2785 if (ccb->ccb_h.target_lun != 0) { 2786 ccb->ccb_h.status = CAM_LUN_INVALID; 2787 xpt_done(ccb); 2788 return (-1); 2789 } 2790 return (0); 2791} 2792 2793static void 2794ahciaction(struct cam_sim *sim, union ccb *ccb) 2795{ 2796 device_t dev, parent; 2797 struct ahci_channel *ch; 2798 2799 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2800 ccb->ccb_h.func_code)); 2801 2802 ch = (struct ahci_channel *)cam_sim_softc(sim); 2803 dev = ch->dev; 2804 switch (ccb->ccb_h.func_code) { 2805 /* Common cases first */ 2806 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2807 case XPT_SCSI_IO: 2808 if (ahci_check_ids(dev, ccb)) 2809 return; 2810 if (ch->devices == 0 || 2811 (ch->pm_present == 0 && 2812 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2813 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2814 break; 2815 } 2816 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2817 /* Check for command collision. */ 2818 if (ahci_check_collision(dev, ccb)) { 2819 /* Freeze command. */ 2820 ch->frozen = ccb; 2821 /* We have only one frozen slot, so freeze simq also. */ 2822 xpt_freeze_simq(ch->sim, 1); 2823 return; 2824 } 2825 ahci_begin_transaction(dev, ccb); 2826 return; 2827 case XPT_EN_LUN: /* Enable LUN as a target */ 2828 case XPT_TARGET_IO: /* Execute target I/O request */ 2829 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2830 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2831 case XPT_ABORT: /* Abort the specified CCB */ 2832 /* XXX Implement */ 2833 ccb->ccb_h.status = CAM_REQ_INVALID; 2834 break; 2835 case XPT_SET_TRAN_SETTINGS: 2836 { 2837 struct ccb_trans_settings *cts = &ccb->cts; 2838 struct ahci_device *d; 2839 2840 if (ahci_check_ids(dev, ccb)) 2841 return; 2842 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2843 d = &ch->curr[ccb->ccb_h.target_id]; 2844 else 2845 d = &ch->user[ccb->ccb_h.target_id]; 2846 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2847 d->revision = cts->xport_specific.sata.revision; 2848 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2849 d->mode = cts->xport_specific.sata.mode; 2850 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2851 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2852 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2853 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2854 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2855 ch->pm_present = cts->xport_specific.sata.pm_present; 2856 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2857 d->atapi = cts->xport_specific.sata.atapi; 2858 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2859 d->caps = cts->xport_specific.sata.caps; 2860 ccb->ccb_h.status = CAM_REQ_CMP; 2861 break; 2862 } 2863 case XPT_GET_TRAN_SETTINGS: 2864 /* Get default/user set transfer settings for the target */ 2865 { 2866 struct ccb_trans_settings *cts = &ccb->cts; 2867 struct ahci_device *d; 2868 uint32_t status; 2869 2870 if (ahci_check_ids(dev, ccb)) 2871 return; 2872 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2873 d = &ch->curr[ccb->ccb_h.target_id]; 2874 else 2875 d = &ch->user[ccb->ccb_h.target_id]; 2876 cts->protocol = PROTO_ATA; 2877 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2878 cts->transport = XPORT_SATA; 2879 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2880 cts->proto_specific.valid = 0; 2881 cts->xport_specific.sata.valid = 0; 2882 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2883 (ccb->ccb_h.target_id == 15 || 2884 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2885 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2886 if (status & 0x0f0) { 2887 cts->xport_specific.sata.revision = 2888 (status & 0x0f0) >> 4; 2889 cts->xport_specific.sata.valid |= 2890 CTS_SATA_VALID_REVISION; 2891 } 2892 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2893 if (ch->pm_level) { 2894 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2895 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2896 if (ch->caps2 & AHCI_CAP2_APST) 2897 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2898 } 2899 if ((ch->caps & AHCI_CAP_SNCQ) && 2900 (ch->quirks & AHCI_Q_NOAA) == 0) 2901 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2902 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2903 cts->xport_specific.sata.caps &= 2904 ch->user[ccb->ccb_h.target_id].caps; 2905 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2906 } else { 2907 cts->xport_specific.sata.revision = d->revision; 2908 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2909 cts->xport_specific.sata.caps = d->caps; 2910 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2911 } 2912 cts->xport_specific.sata.mode = d->mode; 2913 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2914 cts->xport_specific.sata.bytecount = d->bytecount; 2915 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2916 cts->xport_specific.sata.pm_present = ch->pm_present; 2917 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2918 cts->xport_specific.sata.tags = d->tags; 2919 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2920 cts->xport_specific.sata.atapi = d->atapi; 2921 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2922 ccb->ccb_h.status = CAM_REQ_CMP; 2923 break; 2924 } 2925 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2926 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2927 ahci_reset(dev); 2928 ccb->ccb_h.status = CAM_REQ_CMP; 2929 break; 2930 case XPT_TERM_IO: /* Terminate the I/O process */ 2931 /* XXX Implement */ 2932 ccb->ccb_h.status = CAM_REQ_INVALID; 2933 break; 2934 case XPT_PATH_INQ: /* Path routing inquiry */ 2935 { 2936 struct ccb_pathinq *cpi = &ccb->cpi; 2937 2938 parent = device_get_parent(dev); 2939 cpi->version_num = 1; /* XXX??? */ 2940 cpi->hba_inquiry = PI_SDTR_ABLE; 2941 if (ch->caps & AHCI_CAP_SNCQ) 2942 cpi->hba_inquiry |= PI_TAG_ABLE; 2943 if (ch->caps & AHCI_CAP_SPM) 2944 cpi->hba_inquiry |= PI_SATAPM; 2945 cpi->target_sprt = 0; 2946 cpi->hba_misc = PIM_SEQSCAN; 2947 cpi->hba_eng_cnt = 0; 2948 if (ch->caps & AHCI_CAP_SPM) 2949 cpi->max_target = 15; 2950 else 2951 cpi->max_target = 0; 2952 cpi->max_lun = 0; 2953 cpi->initiator_id = 0; 2954 cpi->bus_id = cam_sim_bus(sim); 2955 cpi->base_transfer_speed = 150000; 2956 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2957 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2958 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2959 cpi->unit_number = cam_sim_unit(sim); 2960 cpi->transport = XPORT_SATA; 2961 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2962 cpi->protocol = PROTO_ATA; 2963 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2964 cpi->maxio = MAXPHYS; 2965 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2966 if (pci_get_devid(parent) == 0x43801002) 2967 cpi->maxio = min(cpi->maxio, 128 * 512); 2968 cpi->hba_vendor = pci_get_vendor(parent); 2969 cpi->hba_device = pci_get_device(parent); 2970 cpi->hba_subvendor = pci_get_subvendor(parent); 2971 cpi->hba_subdevice = pci_get_subdevice(parent); 2972 cpi->ccb_h.status = CAM_REQ_CMP; 2973 break; 2974 } 2975 default: 2976 ccb->ccb_h.status = CAM_REQ_INVALID; 2977 break; 2978 } 2979 xpt_done(ccb); 2980} 2981 2982static void 2983ahcipoll(struct cam_sim *sim) 2984{ 2985 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2986 2987 ahci_ch_intr(ch->dev); 2988 if (ch->resetting != 0 && 2989 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2990 ch->resetpolldiv = 1000; 2991 ahci_reset_to(ch->dev); 2992 } 2993} 2994