ahci_generic.c revision 245875
1/*- 2 * Copyright (c) 2009-2012 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 245875 2013-01-24 09:33:43Z mav $"); 29 30#include <sys/param.h> 31#include <sys/module.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/bus.h> 35#include <sys/conf.h> 36#include <sys/endian.h> 37#include <sys/malloc.h> 38#include <sys/lock.h> 39#include <sys/mutex.h> 40#include <machine/stdarg.h> 41#include <machine/resource.h> 42#include <machine/bus.h> 43#include <sys/rman.h> 44#include <dev/pci/pcivar.h> 45#include <dev/pci/pcireg.h> 46#include "ahci.h" 47 48#include <cam/cam.h> 49#include <cam/cam_ccb.h> 50#include <cam/cam_sim.h> 51#include <cam/cam_xpt_sim.h> 52#include <cam/cam_debug.h> 53 54/* local prototypes */ 55static int ahci_setup_interrupt(device_t dev); 56static void ahci_intr(void *data); 57static void ahci_intr_one(void *data); 58static int ahci_suspend(device_t dev); 59static int ahci_resume(device_t dev); 60static int ahci_ch_init(device_t dev); 61static int ahci_ch_deinit(device_t dev); 62static int ahci_ch_suspend(device_t dev); 63static int ahci_ch_resume(device_t dev); 64static void ahci_ch_pm(void *arg); 65static void ahci_ch_intr_locked(void *data); 66static void ahci_ch_intr(void *data); 67static int ahci_ctlr_reset(device_t dev); 68static int ahci_ctlr_setup(device_t dev); 69static void ahci_begin_transaction(device_t dev, union ccb *ccb); 70static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 71static void ahci_execute_transaction(struct ahci_slot *slot); 72static void ahci_timeout(struct ahci_slot *slot); 73static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 74static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 75static void ahci_dmainit(device_t dev); 76static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 77static void ahci_dmafini(device_t dev); 78static void ahci_slotsalloc(device_t dev); 79static void ahci_slotsfree(device_t dev); 80static void ahci_reset(device_t dev); 81static void ahci_start(device_t dev, int fbs); 82static void ahci_stop(device_t dev); 83static void ahci_clo(device_t dev); 84static void ahci_start_fr(device_t dev); 85static void ahci_stop_fr(device_t dev); 86 87static int ahci_sata_connect(struct ahci_channel *ch); 88static int ahci_sata_phy_reset(device_t dev); 89static int ahci_wait_ready(device_t dev, int t, int t0); 90 91static void ahci_issue_recovery(device_t dev); 92static void ahci_process_read_log(device_t dev, union ccb *ccb); 93static void ahci_process_request_sense(device_t dev, union ccb *ccb); 94 95static void ahciaction(struct cam_sim *sim, union ccb *ccb); 96static void ahcipoll(struct cam_sim *sim); 97 98static MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 99 100static struct { 101 uint32_t id; 102 uint8_t rev; 103 const char *name; 104 int quirks; 105#define AHCI_Q_NOFORCE 1 106#define AHCI_Q_NOPMP 2 107#define AHCI_Q_NONCQ 4 108#define AHCI_Q_1CH 8 109#define AHCI_Q_2CH 16 110#define AHCI_Q_4CH 32 111#define AHCI_Q_EDGEIS 64 112#define AHCI_Q_SATA2 128 113#define AHCI_Q_NOBSYRES 256 114#define AHCI_Q_NOAA 512 115#define AHCI_Q_NOCOUNT 1024 116#define AHCI_Q_ALTSIG 2048 117#define AHCI_Q_NOMSI 4096 118} ahci_ids[] = { 119 {0x43801002, 0x00, "ATI IXP600", AHCI_Q_NOMSI}, 120 {0x43901002, 0x00, "ATI IXP700", 0}, 121 {0x43911002, 0x00, "ATI IXP700", 0}, 122 {0x43921002, 0x00, "ATI IXP700", 0}, 123 {0x43931002, 0x00, "ATI IXP700", 0}, 124 {0x43941002, 0x00, "ATI IXP800", 0}, 125 {0x43951002, 0x00, "ATI IXP800", 0}, 126 {0x78001022, 0x00, "AMD Hudson-2", 0}, 127 {0x78011022, 0x00, "AMD Hudson-2", 0}, 128 {0x78021022, 0x00, "AMD Hudson-2", 0}, 129 {0x78031022, 0x00, "AMD Hudson-2", 0}, 130 {0x78041022, 0x00, "AMD Hudson-2", 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 {0x28268086, 0x00, "Intel Patsburg (RAID)", 0}, 175 {0x1e028086, 0x00, "Intel Panther Point", 0}, 176 {0x1e038086, 0x00, "Intel Panther Point", 0}, 177 {0x1e048086, 0x00, "Intel Panther Point", 0}, 178 {0x1e058086, 0x00, "Intel Panther Point", 0}, 179 {0x1e068086, 0x00, "Intel Panther Point", 0}, 180 {0x1e078086, 0x00, "Intel Panther Point", 0}, 181 {0x1e0e8086, 0x00, "Intel Panther Point", 0}, 182 {0x1e0f8086, 0x00, "Intel Panther Point", 0}, 183 {0x8c028086, 0x00, "Intel Lynx Point", 0}, 184 {0x8c038086, 0x00, "Intel Lynx Point", 0}, 185 {0x8c048086, 0x00, "Intel Lynx Point", 0}, 186 {0x8c058086, 0x00, "Intel Lynx Point", 0}, 187 {0x8c068086, 0x00, "Intel Lynx Point", 0}, 188 {0x8c078086, 0x00, "Intel Lynx Point", 0}, 189 {0x8c0e8086, 0x00, "Intel Lynx Point", 0}, 190 {0x8c0f8086, 0x00, "Intel Lynx Point", 0}, 191 {0x23238086, 0x00, "Intel DH89xxCC", 0}, 192 {0x2360197b, 0x00, "JMicron JMB360", 0}, 193 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 194 {0x2362197b, 0x00, "JMicron JMB362", 0}, 195 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 196 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 197 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 198 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 199 {0x611111ab, 0x00, "Marvell 88SE6111", AHCI_Q_NOFORCE | AHCI_Q_1CH | 200 AHCI_Q_EDGEIS}, 201 {0x612111ab, 0x00, "Marvell 88SE6121", AHCI_Q_NOFORCE | AHCI_Q_2CH | 202 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 203 {0x614111ab, 0x00, "Marvell 88SE6141", AHCI_Q_NOFORCE | AHCI_Q_4CH | 204 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 205 {0x614511ab, 0x00, "Marvell 88SE6145", AHCI_Q_NOFORCE | AHCI_Q_4CH | 206 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 207 {0x91201b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_NOBSYRES}, 208 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 209 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 210 {0x91251b4b, 0x00, "Marvell 88SE9125", AHCI_Q_NOBSYRES}, 211 {0x91281b4b, 0x00, "Marvell 88SE9128", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 212 {0x91301b4b, 0x00, "Marvell 88SE9130", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 213 {0x91721b4b, 0x00, "Marvell 88SE9172", AHCI_Q_NOBSYRES}, 214 {0x91821b4b, 0x00, "Marvell 88SE9182", AHCI_Q_NOBSYRES}, 215 {0x92201b4b, 0x00, "Marvell 88SE9220", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 216 {0x92301b4b, 0x00, "Marvell 88SE9230", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 217 {0x92351b4b, 0x00, "Marvell 88SE9235", AHCI_Q_NOBSYRES}, 218 {0x06201103, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 219 {0x06201b4b, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 220 {0x06221103, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 221 {0x06221b4b, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 222 {0x06401103, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 223 {0x06401b4b, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 224 {0x06441103, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 225 {0x06441b4b, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 226 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 227 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 228 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 229 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 230 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 231 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 232 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 233 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 234 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 235 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 236 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 237 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 238 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 239 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 240 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 241 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 242 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 243 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 244 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 245 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 246 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 247 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 248 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 249 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 250 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 251 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 252 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 253 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 254 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 255 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 256 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 257 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 258 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 259 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 260 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 261 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 262 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 263 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 264 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 265 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 266 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 267 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 268 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 269 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 270 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 271 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 272 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 273 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 274 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 275 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 276 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 277 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 278 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 279 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 280 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 281 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 282 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 283 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 284 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOFORCE|AHCI_Q_NOAA}, 285 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 286 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 287 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 288 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 289 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 290 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 291 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 292 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 293 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 294 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 295 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 296 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 297 {0x11841039, 0x00, "SiS 966", 0}, 298 {0x11851039, 0x00, "SiS 968", 0}, 299 {0x01861039, 0x00, "SiS 968", 0}, 300 {0x00000000, 0x00, NULL, 0} 301}; 302 303#define recovery_type spriv_field0 304#define RECOVERY_NONE 0 305#define RECOVERY_READ_LOG 1 306#define RECOVERY_REQUEST_SENSE 2 307#define recovery_slot spriv_field1 308 309static int force_ahci = 1; 310TUNABLE_INT("hw.ahci.force", &force_ahci); 311 312static int 313ahci_probe(device_t dev) 314{ 315 char buf[64]; 316 int i, valid = 0; 317 uint32_t devid = pci_get_devid(dev); 318 uint8_t revid = pci_get_revid(dev); 319 320 /* Is this a possible AHCI candidate? */ 321 if (pci_get_class(dev) == PCIC_STORAGE && 322 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 323 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 324 valid = 1; 325 /* Is this a known AHCI chip? */ 326 for (i = 0; ahci_ids[i].id != 0; i++) { 327 if (ahci_ids[i].id == devid && 328 ahci_ids[i].rev <= revid && 329 (valid || (force_ahci == 1 && 330 !(ahci_ids[i].quirks & AHCI_Q_NOFORCE)))) { 331 /* Do not attach JMicrons with single PCI function. */ 332 if (pci_get_vendor(dev) == 0x197b && 333 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 334 return (ENXIO); 335 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 336 ahci_ids[i].name); 337 device_set_desc_copy(dev, buf); 338 return (BUS_PROBE_VENDOR); 339 } 340 } 341 if (!valid) 342 return (ENXIO); 343 device_set_desc_copy(dev, "AHCI SATA controller"); 344 return (BUS_PROBE_VENDOR); 345} 346 347static int 348ahci_ata_probe(device_t dev) 349{ 350 char buf[64]; 351 int i; 352 uint32_t devid = pci_get_devid(dev); 353 uint8_t revid = pci_get_revid(dev); 354 355 if ((intptr_t)device_get_ivars(dev) >= 0) 356 return (ENXIO); 357 /* Is this a known AHCI chip? */ 358 for (i = 0; ahci_ids[i].id != 0; i++) { 359 if (ahci_ids[i].id == devid && 360 ahci_ids[i].rev <= revid) { 361 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 362 ahci_ids[i].name); 363 device_set_desc_copy(dev, buf); 364 return (BUS_PROBE_VENDOR); 365 } 366 } 367 device_set_desc_copy(dev, "AHCI SATA controller"); 368 return (BUS_PROBE_VENDOR); 369} 370 371static int 372ahci_attach(device_t dev) 373{ 374 struct ahci_controller *ctlr = device_get_softc(dev); 375 device_t child; 376 int error, unit, speed, i; 377 uint32_t devid = pci_get_devid(dev); 378 uint8_t revid = pci_get_revid(dev); 379 u_int32_t version; 380 381 ctlr->dev = dev; 382 i = 0; 383 while (ahci_ids[i].id != 0 && 384 (ahci_ids[i].id != devid || 385 ahci_ids[i].rev > revid)) 386 i++; 387 ctlr->quirks = ahci_ids[i].quirks; 388 resource_int_value(device_get_name(dev), 389 device_get_unit(dev), "ccc", &ctlr->ccc); 390 /* if we have a memory BAR(5) we are likely on an AHCI part */ 391 ctlr->r_rid = PCIR_BAR(5); 392 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 393 &ctlr->r_rid, RF_ACTIVE))) 394 return ENXIO; 395 /* Setup our own memory management for channels. */ 396 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 397 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 398 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 399 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 400 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 401 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 402 return (error); 403 } 404 if ((error = rman_manage_region(&ctlr->sc_iomem, 405 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 406 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 407 rman_fini(&ctlr->sc_iomem); 408 return (error); 409 } 410 pci_enable_busmaster(dev); 411 /* Reset controller */ 412 if ((error = ahci_ctlr_reset(dev)) != 0) { 413 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 414 rman_fini(&ctlr->sc_iomem); 415 return (error); 416 }; 417 /* Get the HW capabilities */ 418 version = ATA_INL(ctlr->r_mem, AHCI_VS); 419 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 420 if (version >= 0x00010200) 421 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 422 if (ctlr->caps & AHCI_CAP_EMS) 423 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 424 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 425 426 /* Identify and set separate quirks for HBA and RAID f/w Marvells. */ 427 if ((ctlr->quirks & AHCI_Q_NOBSYRES) && 428 (ctlr->quirks & AHCI_Q_ALTSIG) && 429 (ctlr->caps & AHCI_CAP_SPM) == 0) 430 ctlr->quirks &= ~AHCI_Q_NOBSYRES; 431 432 if (ctlr->quirks & AHCI_Q_1CH) { 433 ctlr->caps &= ~AHCI_CAP_NPMASK; 434 ctlr->ichannels &= 0x01; 435 } 436 if (ctlr->quirks & AHCI_Q_2CH) { 437 ctlr->caps &= ~AHCI_CAP_NPMASK; 438 ctlr->caps |= 1; 439 ctlr->ichannels &= 0x03; 440 } 441 if (ctlr->quirks & AHCI_Q_4CH) { 442 ctlr->caps &= ~AHCI_CAP_NPMASK; 443 ctlr->caps |= 3; 444 ctlr->ichannels &= 0x0f; 445 } 446 ctlr->channels = MAX(flsl(ctlr->ichannels), 447 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 448 if (ctlr->quirks & AHCI_Q_NOPMP) 449 ctlr->caps &= ~AHCI_CAP_SPM; 450 if (ctlr->quirks & AHCI_Q_NONCQ) 451 ctlr->caps &= ~AHCI_CAP_SNCQ; 452 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 453 ctlr->ccc = 0; 454 ctlr->emloc = ATA_INL(ctlr->r_mem, AHCI_EM_LOC); 455 ahci_ctlr_setup(dev); 456 /* Setup interrupts. */ 457 if (ahci_setup_interrupt(dev)) { 458 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 459 rman_fini(&ctlr->sc_iomem); 460 return ENXIO; 461 } 462 /* Announce HW capabilities. */ 463 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 464 device_printf(dev, 465 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 466 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 467 ((version >> 4) & 0xf0) + (version & 0x0f), 468 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 469 ((speed == 1) ? "1.5":((speed == 2) ? "3": 470 ((speed == 3) ? "6":"?"))), 471 (ctlr->caps & AHCI_CAP_SPM) ? 472 "supported" : "not supported", 473 (ctlr->caps & AHCI_CAP_FBSS) ? 474 " with FBS" : ""); 475 if (bootverbose) { 476 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 477 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 478 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 479 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 480 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 481 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 482 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 483 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 484 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 485 ((speed == 1) ? "1.5":((speed == 2) ? "3": 486 ((speed == 3) ? "6":"?")))); 487 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 488 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 489 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 490 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 491 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 492 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 493 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 494 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 495 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 496 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 497 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 498 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 499 } 500 if (bootverbose && version >= 0x00010200) { 501 device_printf(dev, "Caps2:%s%s%s\n", 502 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 503 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 504 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 505 } 506 /* Attach all channels on this controller */ 507 for (unit = 0; unit < ctlr->channels; unit++) { 508 child = device_add_child(dev, "ahcich", -1); 509 if (child == NULL) { 510 device_printf(dev, "failed to add channel device\n"); 511 continue; 512 } 513 device_set_ivars(child, (void *)(intptr_t)unit); 514 if ((ctlr->ichannels & (1 << unit)) == 0) 515 device_disable(child); 516 } 517 if (ctlr->caps & AHCI_CAP_EMS) { 518 child = device_add_child(dev, "ahciem", -1); 519 if (child == NULL) 520 device_printf(dev, "failed to add enclosure device\n"); 521 else 522 device_set_ivars(child, (void *)(intptr_t)-1); 523 } 524 bus_generic_attach(dev); 525 return 0; 526} 527 528static int 529ahci_detach(device_t dev) 530{ 531 struct ahci_controller *ctlr = device_get_softc(dev); 532 int i; 533 534 /* Detach & delete all children */ 535 device_delete_children(dev); 536 537 /* Free interrupts. */ 538 for (i = 0; i < ctlr->numirqs; i++) { 539 if (ctlr->irqs[i].r_irq) { 540 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 541 ctlr->irqs[i].handle); 542 bus_release_resource(dev, SYS_RES_IRQ, 543 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 544 } 545 } 546 pci_release_msi(dev); 547 /* Free memory. */ 548 rman_fini(&ctlr->sc_iomem); 549 if (ctlr->r_mem) 550 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 551 return (0); 552} 553 554static int 555ahci_ctlr_reset(device_t dev) 556{ 557 struct ahci_controller *ctlr = device_get_softc(dev); 558 int timeout; 559 560 if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == 0x28298086 && 561 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 562 pci_write_config(dev, 0x92, 0x01, 1); 563 /* Enable AHCI mode */ 564 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 565 /* Reset AHCI controller */ 566 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 567 for (timeout = 1000; timeout > 0; timeout--) { 568 DELAY(1000); 569 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 570 break; 571 } 572 if (timeout == 0) { 573 device_printf(dev, "AHCI controller reset failure\n"); 574 return ENXIO; 575 } 576 /* Reenable AHCI mode */ 577 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 578 return (0); 579} 580 581static int 582ahci_ctlr_setup(device_t dev) 583{ 584 struct ahci_controller *ctlr = device_get_softc(dev); 585 /* Clear interrupts */ 586 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 587 /* Configure CCC */ 588 if (ctlr->ccc) { 589 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 590 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 591 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 592 (4 << AHCI_CCCC_CC_SHIFT) | 593 AHCI_CCCC_EN); 594 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 595 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 596 if (bootverbose) { 597 device_printf(dev, 598 "CCC with %dms/4cmd enabled on vector %d\n", 599 ctlr->ccc, ctlr->cccv); 600 } 601 } 602 /* Enable AHCI interrupts */ 603 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 604 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 605 return (0); 606} 607 608static int 609ahci_suspend(device_t dev) 610{ 611 struct ahci_controller *ctlr = device_get_softc(dev); 612 613 bus_generic_suspend(dev); 614 /* Disable interupts, so the state change(s) doesn't trigger */ 615 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 616 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 617 return 0; 618} 619 620static int 621ahci_resume(device_t dev) 622{ 623 int res; 624 625 if ((res = ahci_ctlr_reset(dev)) != 0) 626 return (res); 627 ahci_ctlr_setup(dev); 628 return (bus_generic_resume(dev)); 629} 630 631static int 632ahci_setup_interrupt(device_t dev) 633{ 634 struct ahci_controller *ctlr = device_get_softc(dev); 635 int i, msi = 1; 636 637 /* Process hints. */ 638 if (ctlr->quirks & AHCI_Q_NOMSI) 639 msi = 0; 640 resource_int_value(device_get_name(dev), 641 device_get_unit(dev), "msi", &msi); 642 if (msi < 0) 643 msi = 0; 644 else if (msi == 1) 645 msi = min(1, pci_msi_count(dev)); 646 else if (msi > 1) 647 msi = pci_msi_count(dev); 648 /* Allocate MSI if needed/present. */ 649 if (msi && pci_alloc_msi(dev, &msi) == 0) { 650 ctlr->numirqs = msi; 651 } else { 652 msi = 0; 653 ctlr->numirqs = 1; 654 } 655 /* Check for single MSI vector fallback. */ 656 if (ctlr->numirqs > 1 && 657 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 658 device_printf(dev, "Falling back to one MSI\n"); 659 ctlr->numirqs = 1; 660 } 661 /* Allocate all IRQs. */ 662 for (i = 0; i < ctlr->numirqs; i++) { 663 ctlr->irqs[i].ctlr = ctlr; 664 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 665 if (ctlr->numirqs == 1 || i >= ctlr->channels || 666 (ctlr->ccc && i == ctlr->cccv)) 667 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 668 else if (i == ctlr->numirqs - 1) 669 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 670 else 671 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 672 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 673 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 674 device_printf(dev, "unable to map interrupt\n"); 675 return ENXIO; 676 } 677 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 678 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 679 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 680 /* SOS XXX release r_irq */ 681 device_printf(dev, "unable to setup interrupt\n"); 682 return ENXIO; 683 } 684 if (ctlr->numirqs > 1) { 685 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 686 ctlr->irqs[i].handle, 687 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 688 "ch%d" : "%d", i); 689 } 690 } 691 return (0); 692} 693 694/* 695 * Common case interrupt handler. 696 */ 697static void 698ahci_intr(void *data) 699{ 700 struct ahci_controller_irq *irq = data; 701 struct ahci_controller *ctlr = irq->ctlr; 702 u_int32_t is, ise = 0; 703 void *arg; 704 int unit; 705 706 if (irq->mode == AHCI_IRQ_MODE_ALL) { 707 unit = 0; 708 if (ctlr->ccc) 709 is = ctlr->ichannels; 710 else 711 is = ATA_INL(ctlr->r_mem, AHCI_IS); 712 } else { /* AHCI_IRQ_MODE_AFTER */ 713 unit = irq->r_irq_rid - 1; 714 is = ATA_INL(ctlr->r_mem, AHCI_IS); 715 } 716 /* CCC interrupt is edge triggered. */ 717 if (ctlr->ccc) 718 ise = 1 << ctlr->cccv; 719 /* Some controllers have edge triggered IS. */ 720 if (ctlr->quirks & AHCI_Q_EDGEIS) 721 ise |= is; 722 if (ise != 0) 723 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 724 for (; unit < ctlr->channels; unit++) { 725 if ((is & (1 << unit)) != 0 && 726 (arg = ctlr->interrupt[unit].argument)) { 727 ctlr->interrupt[unit].function(arg); 728 } 729 } 730 /* AHCI declares level triggered IS. */ 731 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 732 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 733} 734 735/* 736 * Simplified interrupt handler for multivector MSI mode. 737 */ 738static void 739ahci_intr_one(void *data) 740{ 741 struct ahci_controller_irq *irq = data; 742 struct ahci_controller *ctlr = irq->ctlr; 743 void *arg; 744 int unit; 745 746 unit = irq->r_irq_rid - 1; 747 /* Some controllers have edge triggered IS. */ 748 if (ctlr->quirks & AHCI_Q_EDGEIS) 749 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 750 if ((arg = ctlr->interrupt[unit].argument)) 751 ctlr->interrupt[unit].function(arg); 752 /* AHCI declares level triggered IS. */ 753 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 754 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 755} 756 757static struct resource * 758ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 759 u_long start, u_long end, u_long count, u_int flags) 760{ 761 struct ahci_controller *ctlr = device_get_softc(dev); 762 struct resource *res; 763 long st; 764 int offset, size, unit; 765 766 unit = (intptr_t)device_get_ivars(child); 767 res = NULL; 768 switch (type) { 769 case SYS_RES_MEMORY: 770 if (unit >= 0) { 771 offset = AHCI_OFFSET + (unit << 7); 772 size = 128; 773 } else if (*rid == 0) { 774 offset = AHCI_EM_CTL; 775 size = 4; 776 } else { 777 offset = (ctlr->emloc & 0xffff0000) >> 14; 778 size = (ctlr->emloc & 0x0000ffff) << 2; 779 if (*rid != 1) { 780 if (*rid == 2 && (ctlr->capsem & 781 (AHCI_EM_XMT | AHCI_EM_SMB)) == 0) 782 offset += size; 783 else 784 break; 785 } 786 } 787 st = rman_get_start(ctlr->r_mem); 788 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 789 st + offset + size - 1, size, RF_ACTIVE, child); 790 if (res) { 791 bus_space_handle_t bsh; 792 bus_space_tag_t bst; 793 bsh = rman_get_bushandle(ctlr->r_mem); 794 bst = rman_get_bustag(ctlr->r_mem); 795 bus_space_subregion(bst, bsh, offset, 128, &bsh); 796 rman_set_bushandle(res, bsh); 797 rman_set_bustag(res, bst); 798 } 799 break; 800 case SYS_RES_IRQ: 801 if (*rid == ATA_IRQ_RID) 802 res = ctlr->irqs[0].r_irq; 803 break; 804 } 805 return (res); 806} 807 808static int 809ahci_release_resource(device_t dev, device_t child, int type, int rid, 810 struct resource *r) 811{ 812 813 switch (type) { 814 case SYS_RES_MEMORY: 815 rman_release_resource(r); 816 return (0); 817 case SYS_RES_IRQ: 818 if (rid != ATA_IRQ_RID) 819 return ENOENT; 820 return (0); 821 } 822 return (EINVAL); 823} 824 825static int 826ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 827 int flags, driver_filter_t *filter, driver_intr_t *function, 828 void *argument, void **cookiep) 829{ 830 struct ahci_controller *ctlr = device_get_softc(dev); 831 int unit = (intptr_t)device_get_ivars(child); 832 833 if (filter != NULL) { 834 printf("ahci.c: we cannot use a filter here\n"); 835 return (EINVAL); 836 } 837 ctlr->interrupt[unit].function = function; 838 ctlr->interrupt[unit].argument = argument; 839 return (0); 840} 841 842static int 843ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 844 void *cookie) 845{ 846 struct ahci_controller *ctlr = device_get_softc(dev); 847 int unit = (intptr_t)device_get_ivars(child); 848 849 ctlr->interrupt[unit].function = NULL; 850 ctlr->interrupt[unit].argument = NULL; 851 return (0); 852} 853 854static int 855ahci_print_child(device_t dev, device_t child) 856{ 857 int retval, channel; 858 859 retval = bus_print_child_header(dev, child); 860 channel = (int)(intptr_t)device_get_ivars(child); 861 if (channel >= 0) 862 retval += printf(" at channel %d", channel); 863 retval += bus_print_child_footer(dev, child); 864 return (retval); 865} 866 867static int 868ahci_child_location_str(device_t dev, device_t child, char *buf, 869 size_t buflen) 870{ 871 int channel; 872 873 channel = (int)(intptr_t)device_get_ivars(child); 874 if (channel >= 0) 875 snprintf(buf, buflen, "channel=%d", channel); 876 return (0); 877} 878 879devclass_t ahci_devclass; 880static device_method_t ahci_methods[] = { 881 DEVMETHOD(device_probe, ahci_probe), 882 DEVMETHOD(device_attach, ahci_attach), 883 DEVMETHOD(device_detach, ahci_detach), 884 DEVMETHOD(device_suspend, ahci_suspend), 885 DEVMETHOD(device_resume, ahci_resume), 886 DEVMETHOD(bus_print_child, ahci_print_child), 887 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 888 DEVMETHOD(bus_release_resource, ahci_release_resource), 889 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 890 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 891 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 892 { 0, 0 } 893}; 894static driver_t ahci_driver = { 895 "ahci", 896 ahci_methods, 897 sizeof(struct ahci_controller) 898}; 899DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 900static device_method_t ahci_ata_methods[] = { 901 DEVMETHOD(device_probe, ahci_ata_probe), 902 DEVMETHOD(device_attach, ahci_attach), 903 DEVMETHOD(device_detach, ahci_detach), 904 DEVMETHOD(device_suspend, ahci_suspend), 905 DEVMETHOD(device_resume, ahci_resume), 906 DEVMETHOD(bus_print_child, ahci_print_child), 907 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 908 DEVMETHOD(bus_release_resource, ahci_release_resource), 909 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 910 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 911 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 912 { 0, 0 } 913}; 914static driver_t ahci_ata_driver = { 915 "ahci", 916 ahci_ata_methods, 917 sizeof(struct ahci_controller) 918}; 919DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 920MODULE_VERSION(ahci, 1); 921MODULE_DEPEND(ahci, cam, 1, 1, 1); 922 923static int 924ahci_ch_probe(device_t dev) 925{ 926 927 device_set_desc_copy(dev, "AHCI channel"); 928 return (0); 929} 930 931static int 932ahci_ch_attach(device_t dev) 933{ 934 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 935 struct ahci_channel *ch = device_get_softc(dev); 936 struct cam_devq *devq; 937 int rid, error, i, sata_rev = 0; 938 u_int32_t version; 939 940 ch->dev = dev; 941 ch->unit = (intptr_t)device_get_ivars(dev); 942 ch->caps = ctlr->caps; 943 ch->caps2 = ctlr->caps2; 944 ch->quirks = ctlr->quirks; 945 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1; 946 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 947 resource_int_value(device_get_name(dev), 948 device_get_unit(dev), "pm_level", &ch->pm_level); 949 if (ch->pm_level > 3) 950 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 951 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 952 /* Limit speed for my onboard JMicron external port. 953 * It is not eSATA really. */ 954 if (pci_get_devid(ctlr->dev) == 0x2363197b && 955 pci_get_subvendor(ctlr->dev) == 0x1043 && 956 pci_get_subdevice(ctlr->dev) == 0x81e4 && 957 ch->unit == 0) 958 sata_rev = 1; 959 if (ch->quirks & AHCI_Q_SATA2) 960 sata_rev = 2; 961 resource_int_value(device_get_name(dev), 962 device_get_unit(dev), "sata_rev", &sata_rev); 963 for (i = 0; i < 16; i++) { 964 ch->user[i].revision = sata_rev; 965 ch->user[i].mode = 0; 966 ch->user[i].bytecount = 8192; 967 ch->user[i].tags = ch->numslots; 968 ch->user[i].caps = 0; 969 ch->curr[i] = ch->user[i]; 970 if (ch->pm_level) { 971 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 972 CTS_SATA_CAPS_H_APST | 973 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 974 } 975 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA | 976 CTS_SATA_CAPS_H_AN; 977 } 978 rid = 0; 979 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 980 &rid, RF_ACTIVE))) 981 return (ENXIO); 982 ahci_dmainit(dev); 983 ahci_slotsalloc(dev); 984 ahci_ch_init(dev); 985 mtx_lock(&ch->mtx); 986 rid = ATA_IRQ_RID; 987 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 988 &rid, RF_SHAREABLE | RF_ACTIVE))) { 989 device_printf(dev, "Unable to map interrupt\n"); 990 error = ENXIO; 991 goto err0; 992 } 993 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 994 ahci_ch_intr_locked, dev, &ch->ih))) { 995 device_printf(dev, "Unable to setup interrupt\n"); 996 error = ENXIO; 997 goto err1; 998 } 999 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 1000 version = ATA_INL(ctlr->r_mem, AHCI_VS); 1001 if (version < 0x00010200 && (ctlr->caps & AHCI_CAP_FBSS)) 1002 ch->chcaps |= AHCI_P_CMD_FBSCP; 1003 if (bootverbose) { 1004 device_printf(dev, "Caps:%s%s%s%s%s\n", 1005 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 1006 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 1007 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 1008 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 1009 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 1010 } 1011 /* Create the device queue for our SIM. */ 1012 devq = cam_simq_alloc(ch->numslots); 1013 if (devq == NULL) { 1014 device_printf(dev, "Unable to allocate simq\n"); 1015 error = ENOMEM; 1016 goto err1; 1017 } 1018 /* Construct SIM entry */ 1019 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 1020 device_get_unit(dev), &ch->mtx, 1021 min(2, ch->numslots), 1022 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 1023 devq); 1024 if (ch->sim == NULL) { 1025 cam_simq_free(devq); 1026 device_printf(dev, "unable to allocate sim\n"); 1027 error = ENOMEM; 1028 goto err1; 1029 } 1030 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 1031 device_printf(dev, "unable to register xpt bus\n"); 1032 error = ENXIO; 1033 goto err2; 1034 } 1035 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 1036 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1037 device_printf(dev, "unable to create path\n"); 1038 error = ENXIO; 1039 goto err3; 1040 } 1041 if (ch->pm_level > 3) { 1042 callout_reset(&ch->pm_timer, 1043 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 1044 ahci_ch_pm, dev); 1045 } 1046 mtx_unlock(&ch->mtx); 1047 return (0); 1048 1049err3: 1050 xpt_bus_deregister(cam_sim_path(ch->sim)); 1051err2: 1052 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1053err1: 1054 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1055err0: 1056 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1057 mtx_unlock(&ch->mtx); 1058 mtx_destroy(&ch->mtx); 1059 return (error); 1060} 1061 1062static int 1063ahci_ch_detach(device_t dev) 1064{ 1065 struct ahci_channel *ch = device_get_softc(dev); 1066 1067 mtx_lock(&ch->mtx); 1068 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 1069 /* Forget about reset. */ 1070 if (ch->resetting) { 1071 ch->resetting = 0; 1072 xpt_release_simq(ch->sim, TRUE); 1073 } 1074 xpt_free_path(ch->path); 1075 xpt_bus_deregister(cam_sim_path(ch->sim)); 1076 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1077 mtx_unlock(&ch->mtx); 1078 1079 if (ch->pm_level > 3) 1080 callout_drain(&ch->pm_timer); 1081 callout_drain(&ch->reset_timer); 1082 bus_teardown_intr(dev, ch->r_irq, ch->ih); 1083 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1084 1085 ahci_ch_deinit(dev); 1086 ahci_slotsfree(dev); 1087 ahci_dmafini(dev); 1088 1089 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1090 mtx_destroy(&ch->mtx); 1091 return (0); 1092} 1093 1094static int 1095ahci_ch_init(device_t dev) 1096{ 1097 struct ahci_channel *ch = device_get_softc(dev); 1098 uint64_t work; 1099 1100 /* Disable port interrupts */ 1101 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1102 /* Setup work areas */ 1103 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1104 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1105 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1106 work = ch->dma.rfis_bus; 1107 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1108 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1109 /* Activate the channel and power/spin up device */ 1110 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1111 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1112 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1113 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1114 ahci_start_fr(dev); 1115 ahci_start(dev, 1); 1116 return (0); 1117} 1118 1119static int 1120ahci_ch_deinit(device_t dev) 1121{ 1122 struct ahci_channel *ch = device_get_softc(dev); 1123 1124 /* Disable port interrupts. */ 1125 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1126 /* Reset command register. */ 1127 ahci_stop(dev); 1128 ahci_stop_fr(dev); 1129 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1130 /* Allow everything, including partial and slumber modes. */ 1131 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1132 /* Request slumber mode transition and give some time to get there. */ 1133 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1134 DELAY(100); 1135 /* Disable PHY. */ 1136 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1137 return (0); 1138} 1139 1140static int 1141ahci_ch_suspend(device_t dev) 1142{ 1143 struct ahci_channel *ch = device_get_softc(dev); 1144 1145 mtx_lock(&ch->mtx); 1146 xpt_freeze_simq(ch->sim, 1); 1147 /* Forget about reset. */ 1148 if (ch->resetting) { 1149 ch->resetting = 0; 1150 callout_stop(&ch->reset_timer); 1151 xpt_release_simq(ch->sim, TRUE); 1152 } 1153 while (ch->oslots) 1154 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1155 ahci_ch_deinit(dev); 1156 mtx_unlock(&ch->mtx); 1157 return (0); 1158} 1159 1160static int 1161ahci_ch_resume(device_t dev) 1162{ 1163 struct ahci_channel *ch = device_get_softc(dev); 1164 1165 mtx_lock(&ch->mtx); 1166 ahci_ch_init(dev); 1167 ahci_reset(dev); 1168 xpt_release_simq(ch->sim, TRUE); 1169 mtx_unlock(&ch->mtx); 1170 return (0); 1171} 1172 1173devclass_t ahcich_devclass; 1174static device_method_t ahcich_methods[] = { 1175 DEVMETHOD(device_probe, ahci_ch_probe), 1176 DEVMETHOD(device_attach, ahci_ch_attach), 1177 DEVMETHOD(device_detach, ahci_ch_detach), 1178 DEVMETHOD(device_suspend, ahci_ch_suspend), 1179 DEVMETHOD(device_resume, ahci_ch_resume), 1180 { 0, 0 } 1181}; 1182static driver_t ahcich_driver = { 1183 "ahcich", 1184 ahcich_methods, 1185 sizeof(struct ahci_channel) 1186}; 1187DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1188 1189struct ahci_dc_cb_args { 1190 bus_addr_t maddr; 1191 int error; 1192}; 1193 1194static void 1195ahci_dmainit(device_t dev) 1196{ 1197 struct ahci_channel *ch = device_get_softc(dev); 1198 struct ahci_dc_cb_args dcba; 1199 size_t rfsize; 1200 1201 if (ch->caps & AHCI_CAP_64BIT) 1202 ch->dma.max_address = BUS_SPACE_MAXADDR; 1203 else 1204 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1205 /* Command area. */ 1206 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1207 ch->dma.max_address, BUS_SPACE_MAXADDR, 1208 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1209 0, NULL, NULL, &ch->dma.work_tag)) 1210 goto error; 1211 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1212 &ch->dma.work_map)) 1213 goto error; 1214 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1215 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1216 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1217 goto error; 1218 } 1219 ch->dma.work_bus = dcba.maddr; 1220 /* FIS receive area. */ 1221 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1222 rfsize = 4096; 1223 else 1224 rfsize = 256; 1225 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1226 ch->dma.max_address, BUS_SPACE_MAXADDR, 1227 NULL, NULL, rfsize, 1, rfsize, 1228 0, NULL, NULL, &ch->dma.rfis_tag)) 1229 goto error; 1230 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1231 &ch->dma.rfis_map)) 1232 goto error; 1233 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1234 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1235 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1236 goto error; 1237 } 1238 ch->dma.rfis_bus = dcba.maddr; 1239 /* Data area. */ 1240 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1241 ch->dma.max_address, BUS_SPACE_MAXADDR, 1242 NULL, NULL, 1243 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1244 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1245 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1246 goto error; 1247 } 1248 return; 1249 1250error: 1251 device_printf(dev, "WARNING - DMA initialization failed\n"); 1252 ahci_dmafini(dev); 1253} 1254 1255static void 1256ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1257{ 1258 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1259 1260 if (!(dcba->error = error)) 1261 dcba->maddr = segs[0].ds_addr; 1262} 1263 1264static void 1265ahci_dmafini(device_t dev) 1266{ 1267 struct ahci_channel *ch = device_get_softc(dev); 1268 1269 if (ch->dma.data_tag) { 1270 bus_dma_tag_destroy(ch->dma.data_tag); 1271 ch->dma.data_tag = NULL; 1272 } 1273 if (ch->dma.rfis_bus) { 1274 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1275 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1276 ch->dma.rfis_bus = 0; 1277 ch->dma.rfis_map = NULL; 1278 ch->dma.rfis = NULL; 1279 } 1280 if (ch->dma.work_bus) { 1281 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1282 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1283 ch->dma.work_bus = 0; 1284 ch->dma.work_map = NULL; 1285 ch->dma.work = NULL; 1286 } 1287 if (ch->dma.work_tag) { 1288 bus_dma_tag_destroy(ch->dma.work_tag); 1289 ch->dma.work_tag = NULL; 1290 } 1291} 1292 1293static void 1294ahci_slotsalloc(device_t dev) 1295{ 1296 struct ahci_channel *ch = device_get_softc(dev); 1297 int i; 1298 1299 /* Alloc and setup command/dma slots */ 1300 bzero(ch->slot, sizeof(ch->slot)); 1301 for (i = 0; i < ch->numslots; i++) { 1302 struct ahci_slot *slot = &ch->slot[i]; 1303 1304 slot->dev = dev; 1305 slot->slot = i; 1306 slot->state = AHCI_SLOT_EMPTY; 1307 slot->ccb = NULL; 1308 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1309 1310 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1311 device_printf(ch->dev, "FAILURE - create data_map\n"); 1312 } 1313} 1314 1315static void 1316ahci_slotsfree(device_t dev) 1317{ 1318 struct ahci_channel *ch = device_get_softc(dev); 1319 int i; 1320 1321 /* Free all dma slots */ 1322 for (i = 0; i < ch->numslots; i++) { 1323 struct ahci_slot *slot = &ch->slot[i]; 1324 1325 callout_drain(&slot->timeout); 1326 if (slot->dma.data_map) { 1327 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1328 slot->dma.data_map = NULL; 1329 } 1330 } 1331} 1332 1333static int 1334ahci_phy_check_events(device_t dev, u_int32_t serr) 1335{ 1336 struct ahci_channel *ch = device_get_softc(dev); 1337 1338 if (((ch->pm_level == 0) && (serr & ATA_SE_PHY_CHANGED)) || 1339 ((ch->pm_level != 0 || ch->listening) && (serr & ATA_SE_EXCHANGED))) { 1340 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1341 union ccb *ccb; 1342 1343 if (bootverbose) { 1344 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1345 device_printf(dev, "CONNECT requested\n"); 1346 else 1347 device_printf(dev, "DISCONNECT requested\n"); 1348 } 1349 ahci_reset(dev); 1350 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1351 return (0); 1352 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1353 cam_sim_path(ch->sim), 1354 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1355 xpt_free_ccb(ccb); 1356 return (0); 1357 } 1358 xpt_rescan(ccb); 1359 return (1); 1360 } 1361 return (0); 1362} 1363 1364static void 1365ahci_cpd_check_events(device_t dev) 1366{ 1367 struct ahci_channel *ch = device_get_softc(dev); 1368 u_int32_t status; 1369 union ccb *ccb; 1370 1371 if (ch->pm_level == 0) 1372 return; 1373 1374 status = ATA_INL(ch->r_mem, AHCI_P_CMD); 1375 if ((status & AHCI_P_CMD_CPD) == 0) 1376 return; 1377 1378 if (bootverbose) { 1379 if (status & AHCI_P_CMD_CPS) { 1380 device_printf(dev, "COLD CONNECT requested\n"); 1381 } else 1382 device_printf(dev, "COLD DISCONNECT requested\n"); 1383 } 1384 ahci_reset(dev); 1385 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1386 return; 1387 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(ch->sim), 1388 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1389 xpt_free_ccb(ccb); 1390 return; 1391 } 1392 xpt_rescan(ccb); 1393} 1394 1395static void 1396ahci_notify_events(device_t dev, u_int32_t status) 1397{ 1398 struct ahci_channel *ch = device_get_softc(dev); 1399 struct cam_path *dpath; 1400 int i; 1401 1402 if (ch->caps & AHCI_CAP_SSNTF) 1403 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1404 if (bootverbose) 1405 device_printf(dev, "SNTF 0x%04x\n", status); 1406 for (i = 0; i < 16; i++) { 1407 if ((status & (1 << i)) == 0) 1408 continue; 1409 if (xpt_create_path(&dpath, NULL, 1410 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1411 xpt_async(AC_SCSI_AEN, dpath, NULL); 1412 xpt_free_path(dpath); 1413 } 1414 } 1415} 1416 1417static void 1418ahci_ch_intr_locked(void *data) 1419{ 1420 device_t dev = (device_t)data; 1421 struct ahci_channel *ch = device_get_softc(dev); 1422 1423 mtx_lock(&ch->mtx); 1424 xpt_batch_start(ch->sim); 1425 ahci_ch_intr(data); 1426 xpt_batch_done(ch->sim); 1427 mtx_unlock(&ch->mtx); 1428} 1429 1430static void 1431ahci_ch_pm(void *arg) 1432{ 1433 device_t dev = (device_t)arg; 1434 struct ahci_channel *ch = device_get_softc(dev); 1435 uint32_t work; 1436 1437 if (ch->numrslots != 0) 1438 return; 1439 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1440 if (ch->pm_level == 4) 1441 work |= AHCI_P_CMD_PARTIAL; 1442 else 1443 work |= AHCI_P_CMD_SLUMBER; 1444 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1445} 1446 1447static void 1448ahci_ch_intr(void *data) 1449{ 1450 device_t dev = (device_t)data; 1451 struct ahci_channel *ch = device_get_softc(dev); 1452 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1453 enum ahci_err_type et; 1454 int i, ccs, port, reset = 0; 1455 1456 /* Read and clear interrupt statuses. */ 1457 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1458 if (istatus == 0) 1459 return; 1460 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1461 /* Read command statuses. */ 1462 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1463 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1464 if (istatus & AHCI_P_IX_SDB) { 1465 if (ch->caps & AHCI_CAP_SSNTF) 1466 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1467 else if (ch->fbs_enabled) { 1468 u_int8_t *fis = ch->dma.rfis + 0x58; 1469 1470 for (i = 0; i < 16; i++) { 1471 if (fis[1] & 0x80) { 1472 fis[1] &= 0x7f; 1473 sntf |= 1 << i; 1474 } 1475 fis += 256; 1476 } 1477 } else { 1478 u_int8_t *fis = ch->dma.rfis + 0x58; 1479 1480 if (fis[1] & 0x80) 1481 sntf = (1 << (fis[1] & 0x0f)); 1482 } 1483 } 1484 /* Process PHY events */ 1485 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1486 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1487 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1488 if (serr) { 1489 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1490 reset = ahci_phy_check_events(dev, serr); 1491 } 1492 } 1493 /* Process cold presence detection events */ 1494 if ((istatus & AHCI_P_IX_CPD) && !reset) 1495 ahci_cpd_check_events(dev); 1496 /* Process command errors */ 1497 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1498 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1499 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1500 >> AHCI_P_CMD_CCS_SHIFT; 1501//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1502// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1503// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1504 port = -1; 1505 if (ch->fbs_enabled) { 1506 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1507 if (fbs & AHCI_P_FBS_SDE) { 1508 port = (fbs & AHCI_P_FBS_DWE) 1509 >> AHCI_P_FBS_DWE_SHIFT; 1510 } else { 1511 for (i = 0; i < 16; i++) { 1512 if (ch->numrslotspd[i] == 0) 1513 continue; 1514 if (port == -1) 1515 port = i; 1516 else if (port != i) { 1517 port = -2; 1518 break; 1519 } 1520 } 1521 } 1522 } 1523 err = ch->rslots & (cstatus | sstatus); 1524 } else { 1525 ccs = 0; 1526 err = 0; 1527 port = -1; 1528 } 1529 /* Complete all successfull commands. */ 1530 ok = ch->rslots & ~(cstatus | sstatus); 1531 for (i = 0; i < ch->numslots; i++) { 1532 if ((ok >> i) & 1) 1533 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1534 } 1535 /* On error, complete the rest of commands with error statuses. */ 1536 if (err) { 1537 if (ch->frozen) { 1538 union ccb *fccb = ch->frozen; 1539 ch->frozen = NULL; 1540 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1541 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1542 xpt_freeze_devq(fccb->ccb_h.path, 1); 1543 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1544 } 1545 xpt_done(fccb); 1546 } 1547 for (i = 0; i < ch->numslots; i++) { 1548 /* XXX: reqests in loading state. */ 1549 if (((err >> i) & 1) == 0) 1550 continue; 1551 if (port >= 0 && 1552 ch->slot[i].ccb->ccb_h.target_id != port) 1553 continue; 1554 if (istatus & AHCI_P_IX_TFE) { 1555 if (port != -2) { 1556 /* Task File Error */ 1557 if (ch->numtslotspd[ 1558 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1559 /* Untagged operation. */ 1560 if (i == ccs) 1561 et = AHCI_ERR_TFE; 1562 else 1563 et = AHCI_ERR_INNOCENT; 1564 } else { 1565 /* Tagged operation. */ 1566 et = AHCI_ERR_NCQ; 1567 } 1568 } else { 1569 et = AHCI_ERR_TFE; 1570 ch->fatalerr = 1; 1571 } 1572 } else if (istatus & AHCI_P_IX_IF) { 1573 if (ch->numtslots == 0 && i != ccs && port != -2) 1574 et = AHCI_ERR_INNOCENT; 1575 else 1576 et = AHCI_ERR_SATA; 1577 } else 1578 et = AHCI_ERR_INVALID; 1579 ahci_end_transaction(&ch->slot[i], et); 1580 } 1581 /* 1582 * We can't reinit port if there are some other 1583 * commands active, use resume to complete them. 1584 */ 1585 if (ch->rslots != 0 && !ch->recoverycmd) 1586 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1587 } 1588 /* Process NOTIFY events */ 1589 if (sntf) 1590 ahci_notify_events(dev, sntf); 1591} 1592 1593/* Must be called with channel locked. */ 1594static int 1595ahci_check_collision(device_t dev, union ccb *ccb) 1596{ 1597 struct ahci_channel *ch = device_get_softc(dev); 1598 int t = ccb->ccb_h.target_id; 1599 1600 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1601 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1602 /* Tagged command while we have no supported tag free. */ 1603 if (((~ch->oslots) & (0xffffffff >> (32 - 1604 ch->curr[t].tags))) == 0) 1605 return (1); 1606 /* If we have FBS */ 1607 if (ch->fbs_enabled) { 1608 /* Tagged command while untagged are active. */ 1609 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1610 return (1); 1611 } else { 1612 /* Tagged command while untagged are active. */ 1613 if (ch->numrslots != 0 && ch->numtslots == 0) 1614 return (1); 1615 /* Tagged command while tagged to other target is active. */ 1616 if (ch->numtslots != 0 && 1617 ch->taggedtarget != ccb->ccb_h.target_id) 1618 return (1); 1619 } 1620 } else { 1621 /* If we have FBS */ 1622 if (ch->fbs_enabled) { 1623 /* Untagged command while tagged are active. */ 1624 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1625 return (1); 1626 } else { 1627 /* Untagged command while tagged are active. */ 1628 if (ch->numrslots != 0 && ch->numtslots != 0) 1629 return (1); 1630 } 1631 } 1632 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1633 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1634 /* Atomic command while anything active. */ 1635 if (ch->numrslots != 0) 1636 return (1); 1637 } 1638 /* We have some atomic command running. */ 1639 if (ch->aslots != 0) 1640 return (1); 1641 return (0); 1642} 1643 1644/* Must be called with channel locked. */ 1645static void 1646ahci_begin_transaction(device_t dev, union ccb *ccb) 1647{ 1648 struct ahci_channel *ch = device_get_softc(dev); 1649 struct ahci_slot *slot; 1650 int tag, tags; 1651 1652 /* Choose empty slot. */ 1653 tags = ch->numslots; 1654 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1655 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1656 tags = ch->curr[ccb->ccb_h.target_id].tags; 1657 tag = ch->lastslot; 1658 while (1) { 1659 if (tag >= tags) 1660 tag = 0; 1661 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1662 break; 1663 tag++; 1664 }; 1665 ch->lastslot = tag; 1666 /* Occupy chosen slot. */ 1667 slot = &ch->slot[tag]; 1668 slot->ccb = ccb; 1669 /* Stop PM timer. */ 1670 if (ch->numrslots == 0 && ch->pm_level > 3) 1671 callout_stop(&ch->pm_timer); 1672 /* Update channel stats. */ 1673 ch->oslots |= (1 << slot->slot); 1674 ch->numrslots++; 1675 ch->numrslotspd[ccb->ccb_h.target_id]++; 1676 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1677 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1678 ch->numtslots++; 1679 ch->numtslotspd[ccb->ccb_h.target_id]++; 1680 ch->taggedtarget = ccb->ccb_h.target_id; 1681 } 1682 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1683 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1684 ch->aslots |= (1 << slot->slot); 1685 slot->dma.nsegs = 0; 1686 /* If request moves data, setup and load SG list */ 1687 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1688 void *buf; 1689 bus_size_t size; 1690 1691 slot->state = AHCI_SLOT_LOADING; 1692 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1693 buf = ccb->ataio.data_ptr; 1694 size = ccb->ataio.dxfer_len; 1695 } else { 1696 buf = ccb->csio.data_ptr; 1697 size = ccb->csio.dxfer_len; 1698 } 1699 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1700 buf, size, ahci_dmasetprd, slot, 0); 1701 } else 1702 ahci_execute_transaction(slot); 1703} 1704 1705/* Locked by busdma engine. */ 1706static void 1707ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1708{ 1709 struct ahci_slot *slot = arg; 1710 struct ahci_channel *ch = device_get_softc(slot->dev); 1711 struct ahci_cmd_tab *ctp; 1712 struct ahci_dma_prd *prd; 1713 int i; 1714 1715 if (error) { 1716 device_printf(slot->dev, "DMA load error\n"); 1717 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1718 return; 1719 } 1720 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1721 /* Get a piece of the workspace for this request */ 1722 ctp = (struct ahci_cmd_tab *) 1723 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1724 /* Fill S/G table */ 1725 prd = &ctp->prd_tab[0]; 1726 for (i = 0; i < nsegs; i++) { 1727 prd[i].dba = htole64(segs[i].ds_addr); 1728 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1729 } 1730 slot->dma.nsegs = nsegs; 1731 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1732 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1733 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1734 ahci_execute_transaction(slot); 1735} 1736 1737/* Must be called with channel locked. */ 1738static void 1739ahci_execute_transaction(struct ahci_slot *slot) 1740{ 1741 device_t dev = slot->dev; 1742 struct ahci_channel *ch = device_get_softc(dev); 1743 struct ahci_cmd_tab *ctp; 1744 struct ahci_cmd_list *clp; 1745 union ccb *ccb = slot->ccb; 1746 int port = ccb->ccb_h.target_id & 0x0f; 1747 int fis_size, i, softreset; 1748 uint8_t *fis = ch->dma.rfis + 0x40; 1749 uint8_t val; 1750 1751 /* Get a piece of the workspace for this request */ 1752 ctp = (struct ahci_cmd_tab *) 1753 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1754 /* Setup the FIS for this request */ 1755 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1756 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1757 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1758 return; 1759 } 1760 /* Setup the command list entry */ 1761 clp = (struct ahci_cmd_list *) 1762 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1763 clp->cmd_flags = htole16( 1764 (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1765 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1766 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1767 (fis_size / sizeof(u_int32_t)) | 1768 (port << 12)); 1769 clp->prd_length = htole16(slot->dma.nsegs); 1770 /* Special handling for Soft Reset command. */ 1771 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1772 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1773 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1774 softreset = 1; 1775 /* Kick controller into sane state */ 1776 ahci_stop(dev); 1777 ahci_clo(dev); 1778 ahci_start(dev, 0); 1779 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1780 } else { 1781 softreset = 2; 1782 /* Prepare FIS receive area for check. */ 1783 for (i = 0; i < 20; i++) 1784 fis[i] = 0xff; 1785 } 1786 } else 1787 softreset = 0; 1788 clp->bytecount = 0; 1789 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1790 (AHCI_CT_SIZE * slot->slot)); 1791 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1792 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1793 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1794 BUS_DMASYNC_PREREAD); 1795 /* Set ACTIVE bit for NCQ commands. */ 1796 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1797 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1798 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1799 } 1800 /* If FBS is enabled, set PMP port. */ 1801 if (ch->fbs_enabled) { 1802 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1803 (port << AHCI_P_FBS_DEV_SHIFT)); 1804 } 1805 /* Issue command to the controller. */ 1806 slot->state = AHCI_SLOT_RUNNING; 1807 ch->rslots |= (1 << slot->slot); 1808 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1809 /* Device reset commands doesn't interrupt. Poll them. */ 1810 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1811 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || softreset)) { 1812 int count, timeout = ccb->ccb_h.timeout * 100; 1813 enum ahci_err_type et = AHCI_ERR_NONE; 1814 1815 for (count = 0; count < timeout; count++) { 1816 DELAY(10); 1817 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1818 break; 1819 if ((ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) && 1820 softreset != 1) { 1821#if 0 1822 device_printf(ch->dev, 1823 "Poll error on slot %d, TFD: %04x\n", 1824 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1825#endif 1826 et = AHCI_ERR_TFE; 1827 break; 1828 } 1829 /* Workaround for ATI SB600/SB700 chipsets. */ 1830 if (ccb->ccb_h.target_id == 15 && 1831 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1832 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1833 et = AHCI_ERR_TIMEOUT; 1834 break; 1835 } 1836 } 1837 1838 /* Marvell controllers do not wait for readyness. */ 1839 if ((ch->quirks & AHCI_Q_NOBSYRES) && softreset == 2 && 1840 et == AHCI_ERR_NONE) { 1841 while ((val = fis[2]) & ATA_S_BUSY) { 1842 DELAY(10); 1843 if (count++ >= timeout) 1844 break; 1845 } 1846 } 1847 1848 if (timeout && (count >= timeout)) { 1849 device_printf(dev, "Poll timeout on slot %d port %d\n", 1850 slot->slot, port); 1851 device_printf(dev, "is %08x cs %08x ss %08x " 1852 "rs %08x tfd %02x serr %08x cmd %08x\n", 1853 ATA_INL(ch->r_mem, AHCI_P_IS), 1854 ATA_INL(ch->r_mem, AHCI_P_CI), 1855 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1856 ATA_INL(ch->r_mem, AHCI_P_TFD), 1857 ATA_INL(ch->r_mem, AHCI_P_SERR), 1858 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1859 et = AHCI_ERR_TIMEOUT; 1860 } 1861 1862 /* Kick controller into sane state and enable FBS. */ 1863 if (softreset == 2) 1864 ch->eslots |= (1 << slot->slot); 1865 ahci_end_transaction(slot, et); 1866 return; 1867 } 1868 /* Start command execution timeout */ 1869 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1870 (timeout_t*)ahci_timeout, slot); 1871 return; 1872} 1873 1874/* Must be called with channel locked. */ 1875static void 1876ahci_process_timeout(device_t dev) 1877{ 1878 struct ahci_channel *ch = device_get_softc(dev); 1879 int i; 1880 1881 mtx_assert(&ch->mtx, MA_OWNED); 1882 /* Handle the rest of commands. */ 1883 for (i = 0; i < ch->numslots; i++) { 1884 /* Do we have a running request on slot? */ 1885 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1886 continue; 1887 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1888 } 1889} 1890 1891/* Must be called with channel locked. */ 1892static void 1893ahci_rearm_timeout(device_t dev) 1894{ 1895 struct ahci_channel *ch = device_get_softc(dev); 1896 int i; 1897 1898 mtx_assert(&ch->mtx, MA_OWNED); 1899 for (i = 0; i < ch->numslots; i++) { 1900 struct ahci_slot *slot = &ch->slot[i]; 1901 1902 /* Do we have a running request on slot? */ 1903 if (slot->state < AHCI_SLOT_RUNNING) 1904 continue; 1905 if ((ch->toslots & (1 << i)) == 0) 1906 continue; 1907 callout_reset(&slot->timeout, 1908 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1909 (timeout_t*)ahci_timeout, slot); 1910 } 1911} 1912 1913/* Locked by callout mechanism. */ 1914static void 1915ahci_timeout(struct ahci_slot *slot) 1916{ 1917 device_t dev = slot->dev; 1918 struct ahci_channel *ch = device_get_softc(dev); 1919 uint32_t sstatus; 1920 int ccs; 1921 int i; 1922 1923 /* Check for stale timeout. */ 1924 if (slot->state < AHCI_SLOT_RUNNING) 1925 return; 1926 1927 /* Check if slot was not being executed last time we checked. */ 1928 if (slot->state < AHCI_SLOT_EXECUTING) { 1929 /* Check if slot started executing. */ 1930 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1931 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1932 >> AHCI_P_CMD_CCS_SHIFT; 1933 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1934 ch->fbs_enabled || ch->wrongccs) 1935 slot->state = AHCI_SLOT_EXECUTING; 1936 else if ((ch->rslots & (1 << ccs)) == 0) { 1937 ch->wrongccs = 1; 1938 slot->state = AHCI_SLOT_EXECUTING; 1939 } 1940 1941 callout_reset(&slot->timeout, 1942 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1943 (timeout_t*)ahci_timeout, slot); 1944 return; 1945 } 1946 1947 device_printf(dev, "Timeout on slot %d port %d\n", 1948 slot->slot, slot->ccb->ccb_h.target_id & 0x0f); 1949 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x " 1950 "serr %08x cmd %08x\n", 1951 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1952 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1953 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR), 1954 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1955 1956 /* Handle frozen command. */ 1957 if (ch->frozen) { 1958 union ccb *fccb = ch->frozen; 1959 ch->frozen = NULL; 1960 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1961 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1962 xpt_freeze_devq(fccb->ccb_h.path, 1); 1963 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1964 } 1965 xpt_done(fccb); 1966 } 1967 if (!ch->fbs_enabled && !ch->wrongccs) { 1968 /* Without FBS we know real timeout source. */ 1969 ch->fatalerr = 1; 1970 /* Handle command with timeout. */ 1971 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1972 /* Handle the rest of commands. */ 1973 for (i = 0; i < ch->numslots; i++) { 1974 /* Do we have a running request on slot? */ 1975 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1976 continue; 1977 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1978 } 1979 } else { 1980 /* With FBS we wait for other commands timeout and pray. */ 1981 if (ch->toslots == 0) 1982 xpt_freeze_simq(ch->sim, 1); 1983 ch->toslots |= (1 << slot->slot); 1984 if ((ch->rslots & ~ch->toslots) == 0) 1985 ahci_process_timeout(dev); 1986 else 1987 device_printf(dev, " ... waiting for slots %08x\n", 1988 ch->rslots & ~ch->toslots); 1989 } 1990} 1991 1992/* Must be called with channel locked. */ 1993static void 1994ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1995{ 1996 device_t dev = slot->dev; 1997 struct ahci_channel *ch = device_get_softc(dev); 1998 union ccb *ccb = slot->ccb; 1999 struct ahci_cmd_list *clp; 2000 int lastto; 2001 uint32_t sig; 2002 2003 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 2004 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2005 clp = (struct ahci_cmd_list *) 2006 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 2007 /* Read result registers to the result struct 2008 * May be incorrect if several commands finished same time, 2009 * so read only when sure or have to. 2010 */ 2011 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2012 struct ata_res *res = &ccb->ataio.res; 2013 2014 if ((et == AHCI_ERR_TFE) || 2015 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 2016 u_int8_t *fis = ch->dma.rfis + 0x40; 2017 2018 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 2019 BUS_DMASYNC_POSTREAD); 2020 if (ch->fbs_enabled) { 2021 fis += ccb->ccb_h.target_id * 256; 2022 res->status = fis[2]; 2023 res->error = fis[3]; 2024 } else { 2025 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 2026 2027 res->status = tfd; 2028 res->error = tfd >> 8; 2029 } 2030 res->lba_low = fis[4]; 2031 res->lba_mid = fis[5]; 2032 res->lba_high = fis[6]; 2033 res->device = fis[7]; 2034 res->lba_low_exp = fis[8]; 2035 res->lba_mid_exp = fis[9]; 2036 res->lba_high_exp = fis[10]; 2037 res->sector_count = fis[12]; 2038 res->sector_count_exp = fis[13]; 2039 2040 /* 2041 * Some weird controllers do not return signature in 2042 * FIS receive area. Read it from PxSIG register. 2043 */ 2044 if ((ch->quirks & AHCI_Q_ALTSIG) && 2045 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2046 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 2047 sig = ATA_INL(ch->r_mem, AHCI_P_SIG); 2048 res->lba_high = sig >> 24; 2049 res->lba_mid = sig >> 16; 2050 res->lba_low = sig >> 8; 2051 res->sector_count = sig; 2052 } 2053 } else 2054 bzero(res, sizeof(*res)); 2055 if ((ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) == 0 && 2056 (ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2057 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2058 ccb->ataio.resid = 2059 ccb->ataio.dxfer_len - le32toh(clp->bytecount); 2060 } 2061 } else { 2062 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2063 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2064 ccb->csio.resid = 2065 ccb->csio.dxfer_len - le32toh(clp->bytecount); 2066 } 2067 } 2068 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2069 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 2070 (ccb->ccb_h.flags & CAM_DIR_IN) ? 2071 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2072 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 2073 } 2074 if (et != AHCI_ERR_NONE) 2075 ch->eslots |= (1 << slot->slot); 2076 /* In case of error, freeze device for proper recovery. */ 2077 if ((et != AHCI_ERR_NONE) && (!ch->recoverycmd) && 2078 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 2079 xpt_freeze_devq(ccb->ccb_h.path, 1); 2080 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2081 } 2082 /* Set proper result status. */ 2083 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2084 switch (et) { 2085 case AHCI_ERR_NONE: 2086 ccb->ccb_h.status |= CAM_REQ_CMP; 2087 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 2088 ccb->csio.scsi_status = SCSI_STATUS_OK; 2089 break; 2090 case AHCI_ERR_INVALID: 2091 ch->fatalerr = 1; 2092 ccb->ccb_h.status |= CAM_REQ_INVALID; 2093 break; 2094 case AHCI_ERR_INNOCENT: 2095 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 2096 break; 2097 case AHCI_ERR_TFE: 2098 case AHCI_ERR_NCQ: 2099 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2100 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 2101 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 2102 } else { 2103 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2104 } 2105 break; 2106 case AHCI_ERR_SATA: 2107 ch->fatalerr = 1; 2108 if (!ch->recoverycmd) { 2109 xpt_freeze_simq(ch->sim, 1); 2110 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2111 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2112 } 2113 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 2114 break; 2115 case AHCI_ERR_TIMEOUT: 2116 if (!ch->recoverycmd) { 2117 xpt_freeze_simq(ch->sim, 1); 2118 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2119 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2120 } 2121 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2122 break; 2123 default: 2124 ch->fatalerr = 1; 2125 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 2126 } 2127 /* Free slot. */ 2128 ch->oslots &= ~(1 << slot->slot); 2129 ch->rslots &= ~(1 << slot->slot); 2130 ch->aslots &= ~(1 << slot->slot); 2131 slot->state = AHCI_SLOT_EMPTY; 2132 slot->ccb = NULL; 2133 /* Update channel stats. */ 2134 ch->numrslots--; 2135 ch->numrslotspd[ccb->ccb_h.target_id]--; 2136 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2137 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 2138 ch->numtslots--; 2139 ch->numtslotspd[ccb->ccb_h.target_id]--; 2140 } 2141 /* Cancel timeout state if request completed normally. */ 2142 if (et != AHCI_ERR_TIMEOUT) { 2143 lastto = (ch->toslots == (1 << slot->slot)); 2144 ch->toslots &= ~(1 << slot->slot); 2145 if (lastto) 2146 xpt_release_simq(ch->sim, TRUE); 2147 } 2148 /* If it was first request of reset sequence and there is no error, 2149 * proceed to second request. */ 2150 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2151 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2152 (ccb->ataio.cmd.control & ATA_A_RESET) && 2153 et == AHCI_ERR_NONE) { 2154 ccb->ataio.cmd.control &= ~ATA_A_RESET; 2155 ahci_begin_transaction(dev, ccb); 2156 return; 2157 } 2158 /* If it was our READ LOG command - process it. */ 2159 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 2160 ahci_process_read_log(dev, ccb); 2161 /* If it was our REQUEST SENSE command - process it. */ 2162 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 2163 ahci_process_request_sense(dev, ccb); 2164 /* If it was NCQ or ATAPI command error, put result on hold. */ 2165 } else if (et == AHCI_ERR_NCQ || 2166 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 2167 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 2168 ch->hold[slot->slot] = ccb; 2169 ch->numhslots++; 2170 } else 2171 xpt_done(ccb); 2172 /* If we have no other active commands, ... */ 2173 if (ch->rslots == 0) { 2174 /* if there was fatal error - reset port. */ 2175 if (ch->toslots != 0 || ch->fatalerr) { 2176 ahci_reset(dev); 2177 } else { 2178 /* if we have slots in error, we can reinit port. */ 2179 if (ch->eslots != 0) { 2180 ahci_stop(dev); 2181 ahci_clo(dev); 2182 ahci_start(dev, 1); 2183 } 2184 /* if there commands on hold, we can do READ LOG. */ 2185 if (!ch->recoverycmd && ch->numhslots) 2186 ahci_issue_recovery(dev); 2187 } 2188 /* If all the rest of commands are in timeout - give them chance. */ 2189 } else if ((ch->rslots & ~ch->toslots) == 0 && 2190 et != AHCI_ERR_TIMEOUT) 2191 ahci_rearm_timeout(dev); 2192 /* Unfreeze frozen command. */ 2193 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 2194 union ccb *fccb = ch->frozen; 2195 ch->frozen = NULL; 2196 ahci_begin_transaction(dev, fccb); 2197 xpt_release_simq(ch->sim, TRUE); 2198 } 2199 /* Start PM timer. */ 2200 if (ch->numrslots == 0 && ch->pm_level > 3 && 2201 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2202 callout_schedule(&ch->pm_timer, 2203 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2204 } 2205} 2206 2207static void 2208ahci_issue_recovery(device_t dev) 2209{ 2210 struct ahci_channel *ch = device_get_softc(dev); 2211 union ccb *ccb; 2212 struct ccb_ataio *ataio; 2213 struct ccb_scsiio *csio; 2214 int i; 2215 2216 /* Find some held command. */ 2217 for (i = 0; i < ch->numslots; i++) { 2218 if (ch->hold[i]) 2219 break; 2220 } 2221 ccb = xpt_alloc_ccb_nowait(); 2222 if (ccb == NULL) { 2223 device_printf(dev, "Unable to allocate recovery command\n"); 2224completeall: 2225 /* We can't do anything -- complete held commands. */ 2226 for (i = 0; i < ch->numslots; i++) { 2227 if (ch->hold[i] == NULL) 2228 continue; 2229 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2230 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 2231 xpt_done(ch->hold[i]); 2232 ch->hold[i] = NULL; 2233 ch->numhslots--; 2234 } 2235 ahci_reset(dev); 2236 return; 2237 } 2238 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2239 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2240 /* READ LOG */ 2241 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 2242 ccb->ccb_h.func_code = XPT_ATA_IO; 2243 ccb->ccb_h.flags = CAM_DIR_IN; 2244 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2245 ataio = &ccb->ataio; 2246 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2247 if (ataio->data_ptr == NULL) { 2248 xpt_free_ccb(ccb); 2249 device_printf(dev, 2250 "Unable to allocate memory for READ LOG command\n"); 2251 goto completeall; 2252 } 2253 ataio->dxfer_len = 512; 2254 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2255 ataio->cmd.flags = CAM_ATAIO_48BIT; 2256 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2257 ataio->cmd.sector_count = 1; 2258 ataio->cmd.sector_count_exp = 0; 2259 ataio->cmd.lba_low = 0x10; 2260 ataio->cmd.lba_mid = 0; 2261 ataio->cmd.lba_mid_exp = 0; 2262 } else { 2263 /* REQUEST SENSE */ 2264 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 2265 ccb->ccb_h.recovery_slot = i; 2266 ccb->ccb_h.func_code = XPT_SCSI_IO; 2267 ccb->ccb_h.flags = CAM_DIR_IN; 2268 ccb->ccb_h.status = 0; 2269 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2270 csio = &ccb->csio; 2271 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 2272 csio->dxfer_len = ch->hold[i]->csio.sense_len; 2273 csio->cdb_len = 6; 2274 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 2275 csio->cdb_io.cdb_bytes[0] = 0x03; 2276 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 2277 } 2278 /* Freeze SIM while doing recovery. */ 2279 ch->recoverycmd = 1; 2280 xpt_freeze_simq(ch->sim, 1); 2281 ahci_begin_transaction(dev, ccb); 2282} 2283 2284static void 2285ahci_process_read_log(device_t dev, union ccb *ccb) 2286{ 2287 struct ahci_channel *ch = device_get_softc(dev); 2288 uint8_t *data; 2289 struct ata_res *res; 2290 int i; 2291 2292 ch->recoverycmd = 0; 2293 2294 data = ccb->ataio.data_ptr; 2295 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2296 (data[0] & 0x80) == 0) { 2297 for (i = 0; i < ch->numslots; i++) { 2298 if (!ch->hold[i]) 2299 continue; 2300 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2301 continue; 2302 if ((data[0] & 0x1F) == i) { 2303 res = &ch->hold[i]->ataio.res; 2304 res->status = data[2]; 2305 res->error = data[3]; 2306 res->lba_low = data[4]; 2307 res->lba_mid = data[5]; 2308 res->lba_high = data[6]; 2309 res->device = data[7]; 2310 res->lba_low_exp = data[8]; 2311 res->lba_mid_exp = data[9]; 2312 res->lba_high_exp = data[10]; 2313 res->sector_count = data[12]; 2314 res->sector_count_exp = data[13]; 2315 } else { 2316 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2317 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2318 } 2319 xpt_done(ch->hold[i]); 2320 ch->hold[i] = NULL; 2321 ch->numhslots--; 2322 } 2323 } else { 2324 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2325 device_printf(dev, "Error while READ LOG EXT\n"); 2326 else if ((data[0] & 0x80) == 0) { 2327 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2328 } 2329 for (i = 0; i < ch->numslots; i++) { 2330 if (!ch->hold[i]) 2331 continue; 2332 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2333 continue; 2334 xpt_done(ch->hold[i]); 2335 ch->hold[i] = NULL; 2336 ch->numhslots--; 2337 } 2338 } 2339 free(ccb->ataio.data_ptr, M_AHCI); 2340 xpt_free_ccb(ccb); 2341 xpt_release_simq(ch->sim, TRUE); 2342} 2343 2344static void 2345ahci_process_request_sense(device_t dev, union ccb *ccb) 2346{ 2347 struct ahci_channel *ch = device_get_softc(dev); 2348 int i; 2349 2350 ch->recoverycmd = 0; 2351 2352 i = ccb->ccb_h.recovery_slot; 2353 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 2354 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 2355 } else { 2356 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2357 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 2358 } 2359 xpt_done(ch->hold[i]); 2360 ch->hold[i] = NULL; 2361 ch->numhslots--; 2362 xpt_free_ccb(ccb); 2363 xpt_release_simq(ch->sim, TRUE); 2364} 2365 2366static void 2367ahci_start(device_t dev, int fbs) 2368{ 2369 struct ahci_channel *ch = device_get_softc(dev); 2370 u_int32_t cmd; 2371 2372 /* Clear SATA error register */ 2373 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2374 /* Clear any interrupts pending on this channel */ 2375 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2376 /* Configure FIS-based switching if supported. */ 2377 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2378 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2379 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2380 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2381 } 2382 /* Start operations on this channel */ 2383 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2384 cmd &= ~AHCI_P_CMD_PMA; 2385 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2386 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2387} 2388 2389static void 2390ahci_stop(device_t dev) 2391{ 2392 struct ahci_channel *ch = device_get_softc(dev); 2393 u_int32_t cmd; 2394 int timeout; 2395 2396 /* Kill all activity on this channel */ 2397 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2398 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2399 /* Wait for activity stop. */ 2400 timeout = 0; 2401 do { 2402 DELAY(10); 2403 if (timeout++ > 50000) { 2404 device_printf(dev, "stopping AHCI engine failed\n"); 2405 break; 2406 } 2407 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2408 ch->eslots = 0; 2409} 2410 2411static void 2412ahci_clo(device_t dev) 2413{ 2414 struct ahci_channel *ch = device_get_softc(dev); 2415 u_int32_t cmd; 2416 int timeout; 2417 2418 /* Issue Command List Override if supported */ 2419 if (ch->caps & AHCI_CAP_SCLO) { 2420 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2421 cmd |= AHCI_P_CMD_CLO; 2422 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2423 timeout = 0; 2424 do { 2425 DELAY(10); 2426 if (timeout++ > 50000) { 2427 device_printf(dev, "executing CLO failed\n"); 2428 break; 2429 } 2430 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2431 } 2432} 2433 2434static void 2435ahci_stop_fr(device_t dev) 2436{ 2437 struct ahci_channel *ch = device_get_softc(dev); 2438 u_int32_t cmd; 2439 int timeout; 2440 2441 /* Kill all FIS reception on this channel */ 2442 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2443 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2444 /* Wait for FIS reception stop. */ 2445 timeout = 0; 2446 do { 2447 DELAY(10); 2448 if (timeout++ > 50000) { 2449 device_printf(dev, "stopping AHCI FR engine failed\n"); 2450 break; 2451 } 2452 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2453} 2454 2455static void 2456ahci_start_fr(device_t dev) 2457{ 2458 struct ahci_channel *ch = device_get_softc(dev); 2459 u_int32_t cmd; 2460 2461 /* Start FIS reception on this channel */ 2462 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2463 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2464} 2465 2466static int 2467ahci_wait_ready(device_t dev, int t, int t0) 2468{ 2469 struct ahci_channel *ch = device_get_softc(dev); 2470 int timeout = 0; 2471 uint32_t val; 2472 2473 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2474 (ATA_S_BUSY | ATA_S_DRQ)) { 2475 if (timeout > t) { 2476 if (t != 0) { 2477 device_printf(dev, 2478 "AHCI reset: device not ready after %dms " 2479 "(tfd = %08x)\n", 2480 MAX(t, 0) + t0, val); 2481 } 2482 return (EBUSY); 2483 } 2484 DELAY(1000); 2485 timeout++; 2486 } 2487 if (bootverbose) 2488 device_printf(dev, "AHCI reset: device ready after %dms\n", 2489 timeout + t0); 2490 return (0); 2491} 2492 2493static void 2494ahci_reset_to(void *arg) 2495{ 2496 device_t dev = arg; 2497 struct ahci_channel *ch = device_get_softc(dev); 2498 2499 if (ch->resetting == 0) 2500 return; 2501 ch->resetting--; 2502 if (ahci_wait_ready(dev, ch->resetting == 0 ? -1 : 0, 2503 (310 - ch->resetting) * 100) == 0) { 2504 ch->resetting = 0; 2505 ahci_start(dev, 1); 2506 xpt_release_simq(ch->sim, TRUE); 2507 return; 2508 } 2509 if (ch->resetting == 0) { 2510 ahci_clo(dev); 2511 ahci_start(dev, 1); 2512 xpt_release_simq(ch->sim, TRUE); 2513 return; 2514 } 2515 callout_schedule(&ch->reset_timer, hz / 10); 2516} 2517 2518static void 2519ahci_reset(device_t dev) 2520{ 2521 struct ahci_channel *ch = device_get_softc(dev); 2522 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2523 int i; 2524 2525 xpt_freeze_simq(ch->sim, 1); 2526 if (bootverbose) 2527 device_printf(dev, "AHCI reset...\n"); 2528 /* Forget about previous reset. */ 2529 if (ch->resetting) { 2530 ch->resetting = 0; 2531 callout_stop(&ch->reset_timer); 2532 xpt_release_simq(ch->sim, TRUE); 2533 } 2534 /* Requeue freezed command. */ 2535 if (ch->frozen) { 2536 union ccb *fccb = ch->frozen; 2537 ch->frozen = NULL; 2538 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2539 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2540 xpt_freeze_devq(fccb->ccb_h.path, 1); 2541 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2542 } 2543 xpt_done(fccb); 2544 } 2545 /* Kill the engine and requeue all running commands. */ 2546 ahci_stop(dev); 2547 for (i = 0; i < ch->numslots; i++) { 2548 /* Do we have a running request on slot? */ 2549 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2550 continue; 2551 /* XXX; Commands in loading state. */ 2552 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2553 } 2554 for (i = 0; i < ch->numslots; i++) { 2555 if (!ch->hold[i]) 2556 continue; 2557 xpt_done(ch->hold[i]); 2558 ch->hold[i] = NULL; 2559 ch->numhslots--; 2560 } 2561 if (ch->toslots != 0) 2562 xpt_release_simq(ch->sim, TRUE); 2563 ch->eslots = 0; 2564 ch->toslots = 0; 2565 ch->wrongccs = 0; 2566 ch->fatalerr = 0; 2567 /* Tell the XPT about the event */ 2568 xpt_async(AC_BUS_RESET, ch->path, NULL); 2569 /* Disable port interrupts */ 2570 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2571 /* Reset and reconnect PHY, */ 2572 if (!ahci_sata_phy_reset(dev)) { 2573 if (bootverbose) 2574 device_printf(dev, 2575 "AHCI reset: device not found\n"); 2576 ch->devices = 0; 2577 /* Enable wanted port interrupts */ 2578 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2579 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2580 AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2581 xpt_release_simq(ch->sim, TRUE); 2582 return; 2583 } 2584 if (bootverbose) 2585 device_printf(dev, "AHCI reset: device found\n"); 2586 /* Wait for clearing busy status. */ 2587 if (ahci_wait_ready(dev, dumping ? 31000 : 0, 0)) { 2588 if (dumping) 2589 ahci_clo(dev); 2590 else 2591 ch->resetting = 310; 2592 } 2593 ch->devices = 1; 2594 /* Enable wanted port interrupts */ 2595 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2596 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2597 AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2598 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2599 ((ch->pm_level == 0) ? AHCI_P_IX_PRC : 0) | AHCI_P_IX_PC | 2600 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2601 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2602 if (ch->resetting) 2603 callout_reset(&ch->reset_timer, hz / 10, ahci_reset_to, dev); 2604 else { 2605 ahci_start(dev, 1); 2606 xpt_release_simq(ch->sim, TRUE); 2607 } 2608} 2609 2610static int 2611ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2612{ 2613 struct ahci_channel *ch = device_get_softc(dev); 2614 u_int8_t *fis = &ctp->cfis[0]; 2615 2616 bzero(ctp->cfis, 64); 2617 fis[0] = 0x27; /* host to device */ 2618 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2619 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2620 fis[1] |= 0x80; 2621 fis[2] = ATA_PACKET_CMD; 2622 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2623 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2624 fis[3] = ATA_F_DMA; 2625 else { 2626 fis[5] = ccb->csio.dxfer_len; 2627 fis[6] = ccb->csio.dxfer_len >> 8; 2628 } 2629 fis[7] = ATA_D_LBA; 2630 fis[15] = ATA_A_4BIT; 2631 bzero(ctp->acmd, 32); 2632 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2633 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2634 ctp->acmd, ccb->csio.cdb_len); 2635 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2636 fis[1] |= 0x80; 2637 fis[2] = ccb->ataio.cmd.command; 2638 fis[3] = ccb->ataio.cmd.features; 2639 fis[4] = ccb->ataio.cmd.lba_low; 2640 fis[5] = ccb->ataio.cmd.lba_mid; 2641 fis[6] = ccb->ataio.cmd.lba_high; 2642 fis[7] = ccb->ataio.cmd.device; 2643 fis[8] = ccb->ataio.cmd.lba_low_exp; 2644 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2645 fis[10] = ccb->ataio.cmd.lba_high_exp; 2646 fis[11] = ccb->ataio.cmd.features_exp; 2647 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2648 fis[12] = tag << 3; 2649 fis[13] = 0; 2650 } else { 2651 fis[12] = ccb->ataio.cmd.sector_count; 2652 fis[13] = ccb->ataio.cmd.sector_count_exp; 2653 } 2654 fis[15] = ATA_A_4BIT; 2655 } else { 2656 fis[15] = ccb->ataio.cmd.control; 2657 } 2658 return (20); 2659} 2660 2661static int 2662ahci_sata_connect(struct ahci_channel *ch) 2663{ 2664 u_int32_t status; 2665 int timeout, found = 0; 2666 2667 /* Wait up to 100ms for "connect well" */ 2668 for (timeout = 0; timeout < 1000 ; timeout++) { 2669 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2670 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 2671 found = 1; 2672 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2673 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2674 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2675 break; 2676 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2677 if (bootverbose) { 2678 device_printf(ch->dev, "SATA offline status=%08x\n", 2679 status); 2680 } 2681 return (0); 2682 } 2683 if (found == 0 && timeout >= 100) 2684 break; 2685 DELAY(100); 2686 } 2687 if (timeout >= 1000 || !found) { 2688 if (bootverbose) { 2689 device_printf(ch->dev, 2690 "SATA connect timeout time=%dus status=%08x\n", 2691 timeout * 100, status); 2692 } 2693 return (0); 2694 } 2695 if (bootverbose) { 2696 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2697 timeout * 100, status); 2698 } 2699 /* Clear SATA error register */ 2700 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2701 return (1); 2702} 2703 2704static int 2705ahci_sata_phy_reset(device_t dev) 2706{ 2707 struct ahci_channel *ch = device_get_softc(dev); 2708 int sata_rev; 2709 uint32_t val; 2710 2711 if (ch->listening) { 2712 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2713 val |= AHCI_P_CMD_SUD; 2714 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2715 ch->listening = 0; 2716 } 2717 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2718 if (sata_rev == 1) 2719 val = ATA_SC_SPD_SPEED_GEN1; 2720 else if (sata_rev == 2) 2721 val = ATA_SC_SPD_SPEED_GEN2; 2722 else if (sata_rev == 3) 2723 val = ATA_SC_SPD_SPEED_GEN3; 2724 else 2725 val = 0; 2726 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2727 ATA_SC_DET_RESET | val | 2728 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2729 DELAY(1000); 2730 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2731 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2732 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2733 if (!ahci_sata_connect(ch)) { 2734 if (ch->caps & AHCI_CAP_SSS) { 2735 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2736 val &= ~AHCI_P_CMD_SUD; 2737 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2738 ch->listening = 1; 2739 } else if (ch->pm_level > 0) 2740 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2741 return (0); 2742 } 2743 return (1); 2744} 2745 2746static int 2747ahci_check_ids(device_t dev, union ccb *ccb) 2748{ 2749 struct ahci_channel *ch = device_get_softc(dev); 2750 2751 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2752 ccb->ccb_h.status = CAM_TID_INVALID; 2753 xpt_done(ccb); 2754 return (-1); 2755 } 2756 if (ccb->ccb_h.target_lun != 0) { 2757 ccb->ccb_h.status = CAM_LUN_INVALID; 2758 xpt_done(ccb); 2759 return (-1); 2760 } 2761 return (0); 2762} 2763 2764static void 2765ahciaction(struct cam_sim *sim, union ccb *ccb) 2766{ 2767 device_t dev, parent; 2768 struct ahci_channel *ch; 2769 2770 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2771 ccb->ccb_h.func_code)); 2772 2773 ch = (struct ahci_channel *)cam_sim_softc(sim); 2774 dev = ch->dev; 2775 switch (ccb->ccb_h.func_code) { 2776 /* Common cases first */ 2777 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2778 case XPT_SCSI_IO: 2779 if (ahci_check_ids(dev, ccb)) 2780 return; 2781 if (ch->devices == 0 || 2782 (ch->pm_present == 0 && 2783 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2784 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2785 break; 2786 } 2787 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2788 /* Check for command collision. */ 2789 if (ahci_check_collision(dev, ccb)) { 2790 /* Freeze command. */ 2791 ch->frozen = ccb; 2792 /* We have only one frozen slot, so freeze simq also. */ 2793 xpt_freeze_simq(ch->sim, 1); 2794 return; 2795 } 2796 ahci_begin_transaction(dev, ccb); 2797 return; 2798 case XPT_EN_LUN: /* Enable LUN as a target */ 2799 case XPT_TARGET_IO: /* Execute target I/O request */ 2800 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2801 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2802 case XPT_ABORT: /* Abort the specified CCB */ 2803 /* XXX Implement */ 2804 ccb->ccb_h.status = CAM_REQ_INVALID; 2805 break; 2806 case XPT_SET_TRAN_SETTINGS: 2807 { 2808 struct ccb_trans_settings *cts = &ccb->cts; 2809 struct ahci_device *d; 2810 2811 if (ahci_check_ids(dev, ccb)) 2812 return; 2813 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2814 d = &ch->curr[ccb->ccb_h.target_id]; 2815 else 2816 d = &ch->user[ccb->ccb_h.target_id]; 2817 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2818 d->revision = cts->xport_specific.sata.revision; 2819 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2820 d->mode = cts->xport_specific.sata.mode; 2821 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2822 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2823 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2824 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2825 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2826 ch->pm_present = cts->xport_specific.sata.pm_present; 2827 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2828 d->atapi = cts->xport_specific.sata.atapi; 2829 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2830 d->caps = cts->xport_specific.sata.caps; 2831 ccb->ccb_h.status = CAM_REQ_CMP; 2832 break; 2833 } 2834 case XPT_GET_TRAN_SETTINGS: 2835 /* Get default/user set transfer settings for the target */ 2836 { 2837 struct ccb_trans_settings *cts = &ccb->cts; 2838 struct ahci_device *d; 2839 uint32_t status; 2840 2841 if (ahci_check_ids(dev, ccb)) 2842 return; 2843 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2844 d = &ch->curr[ccb->ccb_h.target_id]; 2845 else 2846 d = &ch->user[ccb->ccb_h.target_id]; 2847 cts->protocol = PROTO_UNSPECIFIED; 2848 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2849 cts->transport = XPORT_SATA; 2850 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2851 cts->proto_specific.valid = 0; 2852 cts->xport_specific.sata.valid = 0; 2853 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2854 (ccb->ccb_h.target_id == 15 || 2855 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2856 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2857 if (status & 0x0f0) { 2858 cts->xport_specific.sata.revision = 2859 (status & 0x0f0) >> 4; 2860 cts->xport_specific.sata.valid |= 2861 CTS_SATA_VALID_REVISION; 2862 } 2863 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2864 if (ch->pm_level) { 2865 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2866 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2867 if (ch->caps2 & AHCI_CAP2_APST) 2868 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2869 } 2870 if ((ch->caps & AHCI_CAP_SNCQ) && 2871 (ch->quirks & AHCI_Q_NOAA) == 0) 2872 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2873 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2874 cts->xport_specific.sata.caps &= 2875 ch->user[ccb->ccb_h.target_id].caps; 2876 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2877 } else { 2878 cts->xport_specific.sata.revision = d->revision; 2879 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2880 cts->xport_specific.sata.caps = d->caps; 2881 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2882 } 2883 cts->xport_specific.sata.mode = d->mode; 2884 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2885 cts->xport_specific.sata.bytecount = d->bytecount; 2886 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2887 cts->xport_specific.sata.pm_present = ch->pm_present; 2888 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2889 cts->xport_specific.sata.tags = d->tags; 2890 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2891 cts->xport_specific.sata.atapi = d->atapi; 2892 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2893 ccb->ccb_h.status = CAM_REQ_CMP; 2894 break; 2895 } 2896 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2897 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2898 ahci_reset(dev); 2899 ccb->ccb_h.status = CAM_REQ_CMP; 2900 break; 2901 case XPT_TERM_IO: /* Terminate the I/O process */ 2902 /* XXX Implement */ 2903 ccb->ccb_h.status = CAM_REQ_INVALID; 2904 break; 2905 case XPT_PATH_INQ: /* Path routing inquiry */ 2906 { 2907 struct ccb_pathinq *cpi = &ccb->cpi; 2908 2909 parent = device_get_parent(dev); 2910 cpi->version_num = 1; /* XXX??? */ 2911 cpi->hba_inquiry = PI_SDTR_ABLE; 2912 if (ch->caps & AHCI_CAP_SNCQ) 2913 cpi->hba_inquiry |= PI_TAG_ABLE; 2914 if (ch->caps & AHCI_CAP_SPM) 2915 cpi->hba_inquiry |= PI_SATAPM; 2916 cpi->target_sprt = 0; 2917 cpi->hba_misc = PIM_SEQSCAN; 2918 cpi->hba_eng_cnt = 0; 2919 if (ch->caps & AHCI_CAP_SPM) 2920 cpi->max_target = 15; 2921 else 2922 cpi->max_target = 0; 2923 cpi->max_lun = 0; 2924 cpi->initiator_id = 0; 2925 cpi->bus_id = cam_sim_bus(sim); 2926 cpi->base_transfer_speed = 150000; 2927 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2928 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2929 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2930 cpi->unit_number = cam_sim_unit(sim); 2931 cpi->transport = XPORT_SATA; 2932 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2933 cpi->protocol = PROTO_ATA; 2934 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2935 cpi->maxio = MAXPHYS; 2936 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2937 if (pci_get_devid(parent) == 0x43801002) 2938 cpi->maxio = min(cpi->maxio, 128 * 512); 2939 cpi->hba_vendor = pci_get_vendor(parent); 2940 cpi->hba_device = pci_get_device(parent); 2941 cpi->hba_subvendor = pci_get_subvendor(parent); 2942 cpi->hba_subdevice = pci_get_subdevice(parent); 2943 cpi->ccb_h.status = CAM_REQ_CMP; 2944 break; 2945 } 2946 default: 2947 ccb->ccb_h.status = CAM_REQ_INVALID; 2948 break; 2949 } 2950 xpt_done(ccb); 2951} 2952 2953static void 2954ahcipoll(struct cam_sim *sim) 2955{ 2956 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2957 2958 ahci_ch_intr(ch->dev); 2959 if (ch->resetting != 0 && 2960 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2961 ch->resetpolldiv = 1000; 2962 ahci_reset_to(ch->dev); 2963 } 2964} 2965