ahci_pci.c revision 221789
1/*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/dev/ahci/ahci.c 221789 2011-05-11 20:31:27Z jfv $"); 29 30#include <sys/param.h> 31#include <sys/module.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/ata.h> 35#include <sys/bus.h> 36#include <sys/conf.h> 37#include <sys/endian.h> 38#include <sys/malloc.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/sema.h> 42#include <sys/taskqueue.h> 43#include <vm/uma.h> 44#include <machine/stdarg.h> 45#include <machine/resource.h> 46#include <machine/bus.h> 47#include <sys/rman.h> 48#include <dev/pci/pcivar.h> 49#include <dev/pci/pcireg.h> 50#include "ahci.h" 51 52#include <cam/cam.h> 53#include <cam/cam_ccb.h> 54#include <cam/cam_sim.h> 55#include <cam/cam_xpt_sim.h> 56#include <cam/cam_debug.h> 57 58/* local prototypes */ 59static int ahci_setup_interrupt(device_t dev); 60static void ahci_intr(void *data); 61static void ahci_intr_one(void *data); 62static int ahci_suspend(device_t dev); 63static int ahci_resume(device_t dev); 64static int ahci_ch_init(device_t dev); 65static int ahci_ch_deinit(device_t dev); 66static int ahci_ch_suspend(device_t dev); 67static int ahci_ch_resume(device_t dev); 68static void ahci_ch_pm(void *arg); 69static void ahci_ch_intr_locked(void *data); 70static void ahci_ch_intr(void *data); 71static int ahci_ctlr_reset(device_t dev); 72static int ahci_ctlr_setup(device_t dev); 73static void ahci_begin_transaction(device_t dev, union ccb *ccb); 74static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 75static void ahci_execute_transaction(struct ahci_slot *slot); 76static void ahci_timeout(struct ahci_slot *slot); 77static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 78static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 79static void ahci_dmainit(device_t dev); 80static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 81static void ahci_dmafini(device_t dev); 82static void ahci_slotsalloc(device_t dev); 83static void ahci_slotsfree(device_t dev); 84static void ahci_reset(device_t dev); 85static void ahci_start(device_t dev, int fbs); 86static void ahci_stop(device_t dev); 87static void ahci_clo(device_t dev); 88static void ahci_start_fr(device_t dev); 89static void ahci_stop_fr(device_t dev); 90 91static int ahci_sata_connect(struct ahci_channel *ch); 92static int ahci_sata_phy_reset(device_t dev); 93static int ahci_wait_ready(device_t dev, int t, int t0); 94 95static void ahci_issue_recovery(device_t dev); 96static void ahci_process_read_log(device_t dev, union ccb *ccb); 97static void ahci_process_request_sense(device_t dev, union ccb *ccb); 98 99static void ahciaction(struct cam_sim *sim, union ccb *ccb); 100static void ahcipoll(struct cam_sim *sim); 101 102MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 103 104static struct { 105 uint32_t id; 106 uint8_t rev; 107 const char *name; 108 int quirks; 109#define AHCI_Q_NOFORCE 1 110#define AHCI_Q_NOPMP 2 111#define AHCI_Q_NONCQ 4 112#define AHCI_Q_1CH 8 113#define AHCI_Q_2CH 16 114#define AHCI_Q_4CH 32 115#define AHCI_Q_EDGEIS 64 116#define AHCI_Q_SATA2 128 117#define AHCI_Q_NOBSYRES 256 118#define AHCI_Q_NOAA 512 119#define AHCI_Q_NOCOUNT 1024 120} ahci_ids[] = { 121 {0x43801002, 0x00, "ATI IXP600", 0}, 122 {0x43901002, 0x00, "ATI IXP700", 0}, 123 {0x43911002, 0x00, "ATI IXP700", 0}, 124 {0x43921002, 0x00, "ATI IXP700", 0}, 125 {0x43931002, 0x00, "ATI IXP700", 0}, 126 {0x43941002, 0x00, "ATI IXP800", 0}, 127 {0x43951002, 0x00, "ATI IXP800", 0}, 128 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 129 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 130 {0x26818086, 0x00, "Intel ESB2", 0}, 131 {0x26828086, 0x00, "Intel ESB2", 0}, 132 {0x26838086, 0x00, "Intel ESB2", 0}, 133 {0x27c18086, 0x00, "Intel ICH7", 0}, 134 {0x27c38086, 0x00, "Intel ICH7", 0}, 135 {0x27c58086, 0x00, "Intel ICH7M", 0}, 136 {0x27c68086, 0x00, "Intel ICH7M", 0}, 137 {0x28218086, 0x00, "Intel ICH8", 0}, 138 {0x28228086, 0x00, "Intel ICH8", 0}, 139 {0x28248086, 0x00, "Intel ICH8", 0}, 140 {0x28298086, 0x00, "Intel ICH8M", 0}, 141 {0x282a8086, 0x00, "Intel ICH8M", 0}, 142 {0x29228086, 0x00, "Intel ICH9", 0}, 143 {0x29238086, 0x00, "Intel ICH9", 0}, 144 {0x29248086, 0x00, "Intel ICH9", 0}, 145 {0x29258086, 0x00, "Intel ICH9", 0}, 146 {0x29278086, 0x00, "Intel ICH9", 0}, 147 {0x29298086, 0x00, "Intel ICH9M", 0}, 148 {0x292a8086, 0x00, "Intel ICH9M", 0}, 149 {0x292b8086, 0x00, "Intel ICH9M", 0}, 150 {0x292c8086, 0x00, "Intel ICH9M", 0}, 151 {0x292f8086, 0x00, "Intel ICH9M", 0}, 152 {0x294d8086, 0x00, "Intel ICH9", 0}, 153 {0x294e8086, 0x00, "Intel ICH9M", 0}, 154 {0x3a058086, 0x00, "Intel ICH10", 0}, 155 {0x3a228086, 0x00, "Intel ICH10", 0}, 156 {0x3a258086, 0x00, "Intel ICH10", 0}, 157 {0x3b228086, 0x00, "Intel 5 Series/3400 Series", 0}, 158 {0x3b238086, 0x00, "Intel 5 Series/3400 Series", 0}, 159 {0x3b258086, 0x00, "Intel 5 Series/3400 Series", 0}, 160 {0x3b298086, 0x00, "Intel 5 Series/3400 Series", 0}, 161 {0x3b2c8086, 0x00, "Intel 5 Series/3400 Series", 0}, 162 {0x3b2f8086, 0x00, "Intel 5 Series/3400 Series", 0}, 163 {0x1c028086, 0x00, "Intel Cougar Point", 0}, 164 {0x1c038086, 0x00, "Intel Cougar Point", 0}, 165 {0x1c048086, 0x00, "Intel Cougar Point", 0}, 166 {0x1c058086, 0x00, "Intel Cougar Point", 0}, 167 {0x1d028086, 0x00, "Intel Patsburg", 0}, 168 {0x1d048086, 0x00, "Intel Patsburg", 0}, 169 {0x1d068086, 0x00, "Intel Patsburg", 0}, 170 {0x1e028086, 0x00, "Intel Panther Point", 0}, 171 {0x1e038086, 0x00, "Intel Panther Point", 0}, 172 {0x1e048086, 0x00, "Intel Panther Point", 0}, 173 {0x1e058086, 0x00, "Intel Panther Point", 0}, 174 {0x1e068086, 0x00, "Intel Panther Point", 0}, 175 {0x1e078086, 0x00, "Intel Panther Point", 0}, 176 {0x1e0e8086, 0x00, "Intel Panther Point", 0}, 177 {0x1e0f8086, 0x00, "Intel Panther Point", 0}, 178 {0x23238086, 0x00, "Intel DH89xxCC", 0}, 179 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 180 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 181 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 182 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 183 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 184 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE | AHCI_Q_1CH | 185 AHCI_Q_EDGEIS}, 186 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE | AHCI_Q_2CH | 187 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 188 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE | AHCI_Q_4CH | 189 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 190 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE | AHCI_Q_4CH | 191 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 192 {0x91201b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_NOBSYRES}, 193 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES}, 194 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 195 {0x91821b4b, 0x00, "Marvell 88SE9182", AHCI_Q_NOBSYRES}, 196 {0x06201103, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 197 {0x06201b4b, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 198 {0x06221103, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 199 {0x06221b4b, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 200 {0x06401103, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 201 {0x06401b4b, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 202 {0x06441103, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 203 {0x06441b4b, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 204 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 205 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 206 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 207 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 208 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 209 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 210 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 211 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 212 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 213 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 214 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 215 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 216 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 217 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 218 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 219 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 220 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 221 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 222 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 223 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 224 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 225 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 226 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 227 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 228 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 229 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 230 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 231 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 232 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 233 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 234 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 235 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 236 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 237 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 238 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 239 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 240 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 241 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 242 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 243 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 244 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 245 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 246 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 247 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 248 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 249 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 250 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 251 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 252 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 253 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 254 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 255 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 256 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 257 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 258 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 259 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 260 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 261 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 262 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 263 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 264 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 265 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 266 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 267 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 268 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 269 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 270 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 271 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 272 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 273 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 274 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 275 {0x11841039, 0x00, "SiS 966", 0}, 276 {0x11851039, 0x00, "SiS 968", 0}, 277 {0x01861039, 0x00, "SiS 968", 0}, 278 {0x00000000, 0x00, NULL, 0} 279}; 280 281#define recovery_type spriv_field0 282#define RECOVERY_NONE 0 283#define RECOVERY_READ_LOG 1 284#define RECOVERY_REQUEST_SENSE 2 285#define recovery_slot spriv_field1 286 287static int 288ahci_probe(device_t dev) 289{ 290 char buf[64]; 291 int i, valid = 0; 292 uint32_t devid = pci_get_devid(dev); 293 uint8_t revid = pci_get_revid(dev); 294 295 /* Is this a possible AHCI candidate? */ 296 if (pci_get_class(dev) == PCIC_STORAGE && 297 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 298 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 299 valid = 1; 300 /* Is this a known AHCI chip? */ 301 for (i = 0; ahci_ids[i].id != 0; i++) { 302 if (ahci_ids[i].id == devid && 303 ahci_ids[i].rev <= revid && 304 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 305 /* Do not attach JMicrons with single PCI function. */ 306 if (pci_get_vendor(dev) == 0x197b && 307 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 308 return (ENXIO); 309 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 310 ahci_ids[i].name); 311 device_set_desc_copy(dev, buf); 312 return (BUS_PROBE_VENDOR); 313 } 314 } 315 if (!valid) 316 return (ENXIO); 317 device_set_desc_copy(dev, "AHCI SATA controller"); 318 return (BUS_PROBE_VENDOR); 319} 320 321static int 322ahci_ata_probe(device_t dev) 323{ 324 char buf[64]; 325 int i; 326 uint32_t devid = pci_get_devid(dev); 327 uint8_t revid = pci_get_revid(dev); 328 329 if ((intptr_t)device_get_ivars(dev) >= 0) 330 return (ENXIO); 331 /* Is this a known AHCI chip? */ 332 for (i = 0; ahci_ids[i].id != 0; i++) { 333 if (ahci_ids[i].id == devid && 334 ahci_ids[i].rev <= revid) { 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 device_set_desc_copy(dev, "AHCI SATA controller"); 342 return (BUS_PROBE_VENDOR); 343} 344 345static int 346ahci_attach(device_t dev) 347{ 348 struct ahci_controller *ctlr = device_get_softc(dev); 349 device_t child; 350 int error, unit, speed, i; 351 uint32_t devid = pci_get_devid(dev); 352 uint8_t revid = pci_get_revid(dev); 353 u_int32_t version; 354 355 ctlr->dev = dev; 356 i = 0; 357 while (ahci_ids[i].id != 0 && 358 (ahci_ids[i].id != devid || 359 ahci_ids[i].rev > revid)) 360 i++; 361 ctlr->quirks = ahci_ids[i].quirks; 362 resource_int_value(device_get_name(dev), 363 device_get_unit(dev), "ccc", &ctlr->ccc); 364 /* if we have a memory BAR(5) we are likely on an AHCI part */ 365 ctlr->r_rid = PCIR_BAR(5); 366 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 367 &ctlr->r_rid, RF_ACTIVE))) 368 return ENXIO; 369 /* Setup our own memory management for channels. */ 370 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 371 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 372 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 373 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 374 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 375 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 376 return (error); 377 } 378 if ((error = rman_manage_region(&ctlr->sc_iomem, 379 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 380 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 381 rman_fini(&ctlr->sc_iomem); 382 return (error); 383 } 384 pci_enable_busmaster(dev); 385 /* Reset controller */ 386 if ((error = ahci_ctlr_reset(dev)) != 0) { 387 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 388 rman_fini(&ctlr->sc_iomem); 389 return (error); 390 }; 391 /* Get the HW capabilities */ 392 version = ATA_INL(ctlr->r_mem, AHCI_VS); 393 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 394 if (version >= 0x00010020) 395 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 396 if (ctlr->caps & AHCI_CAP_EMS) 397 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 398 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 399 if (ctlr->quirks & AHCI_Q_1CH) { 400 ctlr->caps &= ~AHCI_CAP_NPMASK; 401 ctlr->ichannels &= 0x01; 402 } 403 if (ctlr->quirks & AHCI_Q_2CH) { 404 ctlr->caps &= ~AHCI_CAP_NPMASK; 405 ctlr->caps |= 1; 406 ctlr->ichannels &= 0x03; 407 } 408 if (ctlr->quirks & AHCI_Q_4CH) { 409 ctlr->caps &= ~AHCI_CAP_NPMASK; 410 ctlr->caps |= 3; 411 ctlr->ichannels &= 0x0f; 412 } 413 ctlr->channels = MAX(flsl(ctlr->ichannels), 414 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 415 if (ctlr->quirks & AHCI_Q_NOPMP) 416 ctlr->caps &= ~AHCI_CAP_SPM; 417 if (ctlr->quirks & AHCI_Q_NONCQ) 418 ctlr->caps &= ~AHCI_CAP_SNCQ; 419 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 420 ctlr->ccc = 0; 421 ahci_ctlr_setup(dev); 422 /* Setup interrupts. */ 423 if (ahci_setup_interrupt(dev)) { 424 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 425 rman_fini(&ctlr->sc_iomem); 426 return ENXIO; 427 } 428 /* Announce HW capabilities. */ 429 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 430 device_printf(dev, 431 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 432 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 433 ((version >> 4) & 0xf0) + (version & 0x0f), 434 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 435 ((speed == 1) ? "1.5":((speed == 2) ? "3": 436 ((speed == 3) ? "6":"?"))), 437 (ctlr->caps & AHCI_CAP_SPM) ? 438 "supported" : "not supported", 439 (ctlr->caps & AHCI_CAP_FBSS) ? 440 " with FBS" : ""); 441 if (bootverbose) { 442 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 443 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 444 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 445 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 446 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 447 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 448 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 449 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 450 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 451 ((speed == 1) ? "1.5":((speed == 2) ? "3": 452 ((speed == 3) ? "6":"?")))); 453 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 454 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 455 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 456 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 457 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 458 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 459 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 460 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 461 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 462 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 463 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 464 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 465 } 466 if (bootverbose && version >= 0x00010020) { 467 device_printf(dev, "Caps2:%s%s%s\n", 468 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 469 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 470 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 471 } 472 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 473 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 474 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 475 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 476 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 477 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 478 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 479 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 480 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 481 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 482 } 483 /* Attach all channels on this controller */ 484 for (unit = 0; unit < ctlr->channels; unit++) { 485 if ((ctlr->ichannels & (1 << unit)) == 0) 486 continue; 487 child = device_add_child(dev, "ahcich", -1); 488 if (child == NULL) 489 device_printf(dev, "failed to add channel device\n"); 490 else 491 device_set_ivars(child, (void *)(intptr_t)unit); 492 } 493 bus_generic_attach(dev); 494 return 0; 495} 496 497static int 498ahci_detach(device_t dev) 499{ 500 struct ahci_controller *ctlr = device_get_softc(dev); 501 device_t *children; 502 int nchildren, i; 503 504 /* Detach & delete all children */ 505 if (!device_get_children(dev, &children, &nchildren)) { 506 for (i = 0; i < nchildren; i++) 507 device_delete_child(dev, children[i]); 508 free(children, M_TEMP); 509 } 510 /* Free interrupts. */ 511 for (i = 0; i < ctlr->numirqs; i++) { 512 if (ctlr->irqs[i].r_irq) { 513 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 514 ctlr->irqs[i].handle); 515 bus_release_resource(dev, SYS_RES_IRQ, 516 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 517 } 518 } 519 pci_release_msi(dev); 520 /* Free memory. */ 521 rman_fini(&ctlr->sc_iomem); 522 if (ctlr->r_mem) 523 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 524 return (0); 525} 526 527static int 528ahci_ctlr_reset(device_t dev) 529{ 530 struct ahci_controller *ctlr = device_get_softc(dev); 531 int timeout; 532 533 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 534 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 535 pci_write_config(dev, 0x92, 0x01, 1); 536 /* Enable AHCI mode */ 537 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 538 /* Reset AHCI controller */ 539 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 540 for (timeout = 1000; timeout > 0; timeout--) { 541 DELAY(1000); 542 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 543 break; 544 } 545 if (timeout == 0) { 546 device_printf(dev, "AHCI controller reset failure\n"); 547 return ENXIO; 548 } 549 /* Reenable AHCI mode */ 550 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 551 return (0); 552} 553 554static int 555ahci_ctlr_setup(device_t dev) 556{ 557 struct ahci_controller *ctlr = device_get_softc(dev); 558 /* Clear interrupts */ 559 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 560 /* Configure CCC */ 561 if (ctlr->ccc) { 562 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 563 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 564 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 565 (4 << AHCI_CCCC_CC_SHIFT) | 566 AHCI_CCCC_EN); 567 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 568 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 569 if (bootverbose) { 570 device_printf(dev, 571 "CCC with %dms/4cmd enabled on vector %d\n", 572 ctlr->ccc, ctlr->cccv); 573 } 574 } 575 /* Enable AHCI interrupts */ 576 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 577 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 578 return (0); 579} 580 581static int 582ahci_suspend(device_t dev) 583{ 584 struct ahci_controller *ctlr = device_get_softc(dev); 585 586 bus_generic_suspend(dev); 587 /* Disable interupts, so the state change(s) doesn't trigger */ 588 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 589 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 590 return 0; 591} 592 593static int 594ahci_resume(device_t dev) 595{ 596 int res; 597 598 if ((res = ahci_ctlr_reset(dev)) != 0) 599 return (res); 600 ahci_ctlr_setup(dev); 601 return (bus_generic_resume(dev)); 602} 603 604static int 605ahci_setup_interrupt(device_t dev) 606{ 607 struct ahci_controller *ctlr = device_get_softc(dev); 608 int i, msi = 1; 609 610 /* Process hints. */ 611 resource_int_value(device_get_name(dev), 612 device_get_unit(dev), "msi", &msi); 613 if (msi < 0) 614 msi = 0; 615 else if (msi == 1) 616 msi = min(1, pci_msi_count(dev)); 617 else if (msi > 1) 618 msi = pci_msi_count(dev); 619 /* Allocate MSI if needed/present. */ 620 if (msi && pci_alloc_msi(dev, &msi) == 0) { 621 ctlr->numirqs = msi; 622 } else { 623 msi = 0; 624 ctlr->numirqs = 1; 625 } 626 /* Check for single MSI vector fallback. */ 627 if (ctlr->numirqs > 1 && 628 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 629 device_printf(dev, "Falling back to one MSI\n"); 630 ctlr->numirqs = 1; 631 } 632 /* Allocate all IRQs. */ 633 for (i = 0; i < ctlr->numirqs; i++) { 634 ctlr->irqs[i].ctlr = ctlr; 635 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 636 if (ctlr->numirqs == 1 || i >= ctlr->channels || 637 (ctlr->ccc && i == ctlr->cccv)) 638 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 639 else if (i == ctlr->numirqs - 1) 640 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 641 else 642 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 643 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 644 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 645 device_printf(dev, "unable to map interrupt\n"); 646 return ENXIO; 647 } 648 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 649 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 650 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 651 /* SOS XXX release r_irq */ 652 device_printf(dev, "unable to setup interrupt\n"); 653 return ENXIO; 654 } 655 if (ctlr->numirqs > 1) { 656 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 657 ctlr->irqs[i].handle, 658 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 659 "ch%d" : "%d", i); 660 } 661 } 662 return (0); 663} 664 665/* 666 * Common case interrupt handler. 667 */ 668static void 669ahci_intr(void *data) 670{ 671 struct ahci_controller_irq *irq = data; 672 struct ahci_controller *ctlr = irq->ctlr; 673 u_int32_t is, ise = 0; 674 void *arg; 675 int unit; 676 677 if (irq->mode == AHCI_IRQ_MODE_ALL) { 678 unit = 0; 679 if (ctlr->ccc) 680 is = ctlr->ichannels; 681 else 682 is = ATA_INL(ctlr->r_mem, AHCI_IS); 683 } else { /* AHCI_IRQ_MODE_AFTER */ 684 unit = irq->r_irq_rid - 1; 685 is = ATA_INL(ctlr->r_mem, AHCI_IS); 686 } 687 /* CCC interrupt is edge triggered. */ 688 if (ctlr->ccc) 689 ise = 1 << ctlr->cccv; 690 /* Some controllers have edge triggered IS. */ 691 if (ctlr->quirks & AHCI_Q_EDGEIS) 692 ise |= is; 693 if (ise != 0) 694 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 695 for (; unit < ctlr->channels; unit++) { 696 if ((is & (1 << unit)) != 0 && 697 (arg = ctlr->interrupt[unit].argument)) { 698 ctlr->interrupt[unit].function(arg); 699 } 700 } 701 /* AHCI declares level triggered IS. */ 702 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 703 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 704} 705 706/* 707 * Simplified interrupt handler for multivector MSI mode. 708 */ 709static void 710ahci_intr_one(void *data) 711{ 712 struct ahci_controller_irq *irq = data; 713 struct ahci_controller *ctlr = irq->ctlr; 714 void *arg; 715 int unit; 716 717 unit = irq->r_irq_rid - 1; 718 /* Some controllers have edge triggered IS. */ 719 if (ctlr->quirks & AHCI_Q_EDGEIS) 720 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 721 if ((arg = ctlr->interrupt[unit].argument)) 722 ctlr->interrupt[unit].function(arg); 723 /* AHCI declares level triggered IS. */ 724 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 725 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 726} 727 728static struct resource * 729ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 730 u_long start, u_long end, u_long count, u_int flags) 731{ 732 struct ahci_controller *ctlr = device_get_softc(dev); 733 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 734 struct resource *res = NULL; 735 int offset = AHCI_OFFSET + (unit << 7); 736 long st; 737 738 switch (type) { 739 case SYS_RES_MEMORY: 740 st = rman_get_start(ctlr->r_mem); 741 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 742 st + offset + 127, 128, RF_ACTIVE, child); 743 if (res) { 744 bus_space_handle_t bsh; 745 bus_space_tag_t bst; 746 bsh = rman_get_bushandle(ctlr->r_mem); 747 bst = rman_get_bustag(ctlr->r_mem); 748 bus_space_subregion(bst, bsh, offset, 128, &bsh); 749 rman_set_bushandle(res, bsh); 750 rman_set_bustag(res, bst); 751 } 752 break; 753 case SYS_RES_IRQ: 754 if (*rid == ATA_IRQ_RID) 755 res = ctlr->irqs[0].r_irq; 756 break; 757 } 758 return (res); 759} 760 761static int 762ahci_release_resource(device_t dev, device_t child, int type, int rid, 763 struct resource *r) 764{ 765 766 switch (type) { 767 case SYS_RES_MEMORY: 768 rman_release_resource(r); 769 return (0); 770 case SYS_RES_IRQ: 771 if (rid != ATA_IRQ_RID) 772 return ENOENT; 773 return (0); 774 } 775 return (EINVAL); 776} 777 778static int 779ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 780 int flags, driver_filter_t *filter, driver_intr_t *function, 781 void *argument, void **cookiep) 782{ 783 struct ahci_controller *ctlr = device_get_softc(dev); 784 int unit = (intptr_t)device_get_ivars(child); 785 786 if (filter != NULL) { 787 printf("ahci.c: we cannot use a filter here\n"); 788 return (EINVAL); 789 } 790 ctlr->interrupt[unit].function = function; 791 ctlr->interrupt[unit].argument = argument; 792 return (0); 793} 794 795static int 796ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 797 void *cookie) 798{ 799 struct ahci_controller *ctlr = device_get_softc(dev); 800 int unit = (intptr_t)device_get_ivars(child); 801 802 ctlr->interrupt[unit].function = NULL; 803 ctlr->interrupt[unit].argument = NULL; 804 return (0); 805} 806 807static int 808ahci_print_child(device_t dev, device_t child) 809{ 810 int retval; 811 812 retval = bus_print_child_header(dev, child); 813 retval += printf(" at channel %d", 814 (int)(intptr_t)device_get_ivars(child)); 815 retval += bus_print_child_footer(dev, child); 816 817 return (retval); 818} 819 820static int 821ahci_child_location_str(device_t dev, device_t child, char *buf, 822 size_t buflen) 823{ 824 825 snprintf(buf, buflen, "channel=%d", 826 (int)(intptr_t)device_get_ivars(child)); 827 return (0); 828} 829 830devclass_t ahci_devclass; 831static device_method_t ahci_methods[] = { 832 DEVMETHOD(device_probe, ahci_probe), 833 DEVMETHOD(device_attach, ahci_attach), 834 DEVMETHOD(device_detach, ahci_detach), 835 DEVMETHOD(device_suspend, ahci_suspend), 836 DEVMETHOD(device_resume, ahci_resume), 837 DEVMETHOD(bus_print_child, ahci_print_child), 838 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 839 DEVMETHOD(bus_release_resource, ahci_release_resource), 840 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 841 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 842 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 843 { 0, 0 } 844}; 845static driver_t ahci_driver = { 846 "ahci", 847 ahci_methods, 848 sizeof(struct ahci_controller) 849}; 850DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 851static device_method_t ahci_ata_methods[] = { 852 DEVMETHOD(device_probe, ahci_ata_probe), 853 DEVMETHOD(device_attach, ahci_attach), 854 DEVMETHOD(device_detach, ahci_detach), 855 DEVMETHOD(device_suspend, ahci_suspend), 856 DEVMETHOD(device_resume, ahci_resume), 857 DEVMETHOD(bus_print_child, ahci_print_child), 858 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 859 DEVMETHOD(bus_release_resource, ahci_release_resource), 860 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 861 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 862 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 863 { 0, 0 } 864}; 865static driver_t ahci_ata_driver = { 866 "ahci", 867 ahci_ata_methods, 868 sizeof(struct ahci_controller) 869}; 870DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 871MODULE_VERSION(ahci, 1); 872MODULE_DEPEND(ahci, cam, 1, 1, 1); 873 874static int 875ahci_ch_probe(device_t dev) 876{ 877 878 device_set_desc_copy(dev, "AHCI channel"); 879 return (0); 880} 881 882static int 883ahci_ch_attach(device_t dev) 884{ 885 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 886 struct ahci_channel *ch = device_get_softc(dev); 887 struct cam_devq *devq; 888 int rid, error, i, sata_rev = 0; 889 u_int32_t version; 890 891 ch->dev = dev; 892 ch->unit = (intptr_t)device_get_ivars(dev); 893 ch->caps = ctlr->caps; 894 ch->caps2 = ctlr->caps2; 895 ch->quirks = ctlr->quirks; 896 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1; 897 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 898 resource_int_value(device_get_name(dev), 899 device_get_unit(dev), "pm_level", &ch->pm_level); 900 if (ch->pm_level > 3) 901 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 902 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 903 /* Limit speed for my onboard JMicron external port. 904 * It is not eSATA really. */ 905 if (pci_get_devid(ctlr->dev) == 0x2363197b && 906 pci_get_subvendor(ctlr->dev) == 0x1043 && 907 pci_get_subdevice(ctlr->dev) == 0x81e4 && 908 ch->unit == 0) 909 sata_rev = 1; 910 if (ch->quirks & AHCI_Q_SATA2) 911 sata_rev = 2; 912 resource_int_value(device_get_name(dev), 913 device_get_unit(dev), "sata_rev", &sata_rev); 914 for (i = 0; i < 16; i++) { 915 ch->user[i].revision = sata_rev; 916 ch->user[i].mode = 0; 917 ch->user[i].bytecount = 8192; 918 ch->user[i].tags = ch->numslots; 919 ch->user[i].caps = 0; 920 ch->curr[i] = ch->user[i]; 921 if (ch->pm_level) { 922 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 923 CTS_SATA_CAPS_H_APST | 924 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 925 } 926 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA | 927 CTS_SATA_CAPS_H_AN; 928 } 929 rid = ch->unit; 930 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 931 &rid, RF_ACTIVE))) 932 return (ENXIO); 933 ahci_dmainit(dev); 934 ahci_slotsalloc(dev); 935 ahci_ch_init(dev); 936 mtx_lock(&ch->mtx); 937 rid = ATA_IRQ_RID; 938 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 939 &rid, RF_SHAREABLE | RF_ACTIVE))) { 940 device_printf(dev, "Unable to map interrupt\n"); 941 error = ENXIO; 942 goto err0; 943 } 944 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 945 ahci_ch_intr_locked, dev, &ch->ih))) { 946 device_printf(dev, "Unable to setup interrupt\n"); 947 error = ENXIO; 948 goto err1; 949 } 950 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 951 version = ATA_INL(ctlr->r_mem, AHCI_VS); 952 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 953 ch->chcaps |= AHCI_P_CMD_FBSCP; 954 if (bootverbose) { 955 device_printf(dev, "Caps:%s%s%s%s%s\n", 956 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 957 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 958 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 959 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 960 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 961 } 962 /* Create the device queue for our SIM. */ 963 devq = cam_simq_alloc(ch->numslots); 964 if (devq == NULL) { 965 device_printf(dev, "Unable to allocate simq\n"); 966 error = ENOMEM; 967 goto err1; 968 } 969 /* Construct SIM entry */ 970 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 971 device_get_unit(dev), &ch->mtx, 972 min(2, ch->numslots), 973 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 974 devq); 975 if (ch->sim == NULL) { 976 cam_simq_free(devq); 977 device_printf(dev, "unable to allocate sim\n"); 978 error = ENOMEM; 979 goto err1; 980 } 981 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 982 device_printf(dev, "unable to register xpt bus\n"); 983 error = ENXIO; 984 goto err2; 985 } 986 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 987 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 988 device_printf(dev, "unable to create path\n"); 989 error = ENXIO; 990 goto err3; 991 } 992 if (ch->pm_level > 3) { 993 callout_reset(&ch->pm_timer, 994 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 995 ahci_ch_pm, dev); 996 } 997 mtx_unlock(&ch->mtx); 998 return (0); 999 1000err3: 1001 xpt_bus_deregister(cam_sim_path(ch->sim)); 1002err2: 1003 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1004err1: 1005 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1006err0: 1007 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1008 mtx_unlock(&ch->mtx); 1009 mtx_destroy(&ch->mtx); 1010 return (error); 1011} 1012 1013static int 1014ahci_ch_detach(device_t dev) 1015{ 1016 struct ahci_channel *ch = device_get_softc(dev); 1017 1018 mtx_lock(&ch->mtx); 1019 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 1020 /* Forget about reset. */ 1021 if (ch->resetting) { 1022 ch->resetting = 0; 1023 xpt_release_simq(ch->sim, TRUE); 1024 } 1025 xpt_free_path(ch->path); 1026 xpt_bus_deregister(cam_sim_path(ch->sim)); 1027 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1028 mtx_unlock(&ch->mtx); 1029 1030 if (ch->pm_level > 3) 1031 callout_drain(&ch->pm_timer); 1032 callout_drain(&ch->reset_timer); 1033 bus_teardown_intr(dev, ch->r_irq, ch->ih); 1034 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1035 1036 ahci_ch_deinit(dev); 1037 ahci_slotsfree(dev); 1038 ahci_dmafini(dev); 1039 1040 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1041 mtx_destroy(&ch->mtx); 1042 return (0); 1043} 1044 1045static int 1046ahci_ch_init(device_t dev) 1047{ 1048 struct ahci_channel *ch = device_get_softc(dev); 1049 uint64_t work; 1050 1051 /* Disable port interrupts */ 1052 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1053 /* Setup work areas */ 1054 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1055 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1056 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1057 work = ch->dma.rfis_bus; 1058 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1059 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1060 /* Activate the channel and power/spin up device */ 1061 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1062 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1063 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1064 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1065 ahci_start_fr(dev); 1066 ahci_start(dev, 1); 1067 return (0); 1068} 1069 1070static int 1071ahci_ch_deinit(device_t dev) 1072{ 1073 struct ahci_channel *ch = device_get_softc(dev); 1074 1075 /* Disable port interrupts. */ 1076 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1077 /* Reset command register. */ 1078 ahci_stop(dev); 1079 ahci_stop_fr(dev); 1080 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1081 /* Allow everything, including partial and slumber modes. */ 1082 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1083 /* Request slumber mode transition and give some time to get there. */ 1084 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1085 DELAY(100); 1086 /* Disable PHY. */ 1087 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1088 return (0); 1089} 1090 1091static int 1092ahci_ch_suspend(device_t dev) 1093{ 1094 struct ahci_channel *ch = device_get_softc(dev); 1095 1096 mtx_lock(&ch->mtx); 1097 xpt_freeze_simq(ch->sim, 1); 1098 /* Forget about reset. */ 1099 if (ch->resetting) { 1100 ch->resetting = 0; 1101 callout_stop(&ch->reset_timer); 1102 xpt_release_simq(ch->sim, TRUE); 1103 } 1104 while (ch->oslots) 1105 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1106 ahci_ch_deinit(dev); 1107 mtx_unlock(&ch->mtx); 1108 return (0); 1109} 1110 1111static int 1112ahci_ch_resume(device_t dev) 1113{ 1114 struct ahci_channel *ch = device_get_softc(dev); 1115 1116 mtx_lock(&ch->mtx); 1117 ahci_ch_init(dev); 1118 ahci_reset(dev); 1119 xpt_release_simq(ch->sim, TRUE); 1120 mtx_unlock(&ch->mtx); 1121 return (0); 1122} 1123 1124devclass_t ahcich_devclass; 1125static device_method_t ahcich_methods[] = { 1126 DEVMETHOD(device_probe, ahci_ch_probe), 1127 DEVMETHOD(device_attach, ahci_ch_attach), 1128 DEVMETHOD(device_detach, ahci_ch_detach), 1129 DEVMETHOD(device_suspend, ahci_ch_suspend), 1130 DEVMETHOD(device_resume, ahci_ch_resume), 1131 { 0, 0 } 1132}; 1133static driver_t ahcich_driver = { 1134 "ahcich", 1135 ahcich_methods, 1136 sizeof(struct ahci_channel) 1137}; 1138DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1139 1140struct ahci_dc_cb_args { 1141 bus_addr_t maddr; 1142 int error; 1143}; 1144 1145static void 1146ahci_dmainit(device_t dev) 1147{ 1148 struct ahci_channel *ch = device_get_softc(dev); 1149 struct ahci_dc_cb_args dcba; 1150 size_t rfsize; 1151 1152 if (ch->caps & AHCI_CAP_64BIT) 1153 ch->dma.max_address = BUS_SPACE_MAXADDR; 1154 else 1155 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1156 /* Command area. */ 1157 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1158 ch->dma.max_address, BUS_SPACE_MAXADDR, 1159 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1160 0, NULL, NULL, &ch->dma.work_tag)) 1161 goto error; 1162 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1163 &ch->dma.work_map)) 1164 goto error; 1165 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1166 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1167 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1168 goto error; 1169 } 1170 ch->dma.work_bus = dcba.maddr; 1171 /* FIS receive area. */ 1172 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1173 rfsize = 4096; 1174 else 1175 rfsize = 256; 1176 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1177 ch->dma.max_address, BUS_SPACE_MAXADDR, 1178 NULL, NULL, rfsize, 1, rfsize, 1179 0, NULL, NULL, &ch->dma.rfis_tag)) 1180 goto error; 1181 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1182 &ch->dma.rfis_map)) 1183 goto error; 1184 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1185 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1186 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1187 goto error; 1188 } 1189 ch->dma.rfis_bus = dcba.maddr; 1190 /* Data area. */ 1191 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1192 ch->dma.max_address, BUS_SPACE_MAXADDR, 1193 NULL, NULL, 1194 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1195 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1196 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1197 goto error; 1198 } 1199 return; 1200 1201error: 1202 device_printf(dev, "WARNING - DMA initialization failed\n"); 1203 ahci_dmafini(dev); 1204} 1205 1206static void 1207ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1208{ 1209 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1210 1211 if (!(dcba->error = error)) 1212 dcba->maddr = segs[0].ds_addr; 1213} 1214 1215static void 1216ahci_dmafini(device_t dev) 1217{ 1218 struct ahci_channel *ch = device_get_softc(dev); 1219 1220 if (ch->dma.data_tag) { 1221 bus_dma_tag_destroy(ch->dma.data_tag); 1222 ch->dma.data_tag = NULL; 1223 } 1224 if (ch->dma.rfis_bus) { 1225 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1226 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1227 ch->dma.rfis_bus = 0; 1228 ch->dma.rfis_map = NULL; 1229 ch->dma.rfis = NULL; 1230 } 1231 if (ch->dma.work_bus) { 1232 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1233 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1234 ch->dma.work_bus = 0; 1235 ch->dma.work_map = NULL; 1236 ch->dma.work = NULL; 1237 } 1238 if (ch->dma.work_tag) { 1239 bus_dma_tag_destroy(ch->dma.work_tag); 1240 ch->dma.work_tag = NULL; 1241 } 1242} 1243 1244static void 1245ahci_slotsalloc(device_t dev) 1246{ 1247 struct ahci_channel *ch = device_get_softc(dev); 1248 int i; 1249 1250 /* Alloc and setup command/dma slots */ 1251 bzero(ch->slot, sizeof(ch->slot)); 1252 for (i = 0; i < ch->numslots; i++) { 1253 struct ahci_slot *slot = &ch->slot[i]; 1254 1255 slot->dev = dev; 1256 slot->slot = i; 1257 slot->state = AHCI_SLOT_EMPTY; 1258 slot->ccb = NULL; 1259 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1260 1261 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1262 device_printf(ch->dev, "FAILURE - create data_map\n"); 1263 } 1264} 1265 1266static void 1267ahci_slotsfree(device_t dev) 1268{ 1269 struct ahci_channel *ch = device_get_softc(dev); 1270 int i; 1271 1272 /* Free all dma slots */ 1273 for (i = 0; i < ch->numslots; i++) { 1274 struct ahci_slot *slot = &ch->slot[i]; 1275 1276 callout_drain(&slot->timeout); 1277 if (slot->dma.data_map) { 1278 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1279 slot->dma.data_map = NULL; 1280 } 1281 } 1282} 1283 1284static int 1285ahci_phy_check_events(device_t dev, u_int32_t serr) 1286{ 1287 struct ahci_channel *ch = device_get_softc(dev); 1288 1289 if (((ch->pm_level == 0) && (serr & ATA_SE_PHY_CHANGED)) || 1290 ((ch->pm_level != 0 || ch->listening) && (serr & ATA_SE_EXCHANGED))) { 1291 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1292 union ccb *ccb; 1293 1294 if (bootverbose) { 1295 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1296 device_printf(dev, "CONNECT requested\n"); 1297 else 1298 device_printf(dev, "DISCONNECT requested\n"); 1299 } 1300 ahci_reset(dev); 1301 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1302 return (0); 1303 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1304 cam_sim_path(ch->sim), 1305 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1306 xpt_free_ccb(ccb); 1307 return (0); 1308 } 1309 xpt_rescan(ccb); 1310 return (1); 1311 } 1312 return (0); 1313} 1314 1315static void 1316ahci_cpd_check_events(device_t dev) 1317{ 1318 struct ahci_channel *ch = device_get_softc(dev); 1319 u_int32_t status; 1320 union ccb *ccb; 1321 1322 if (ch->pm_level == 0) 1323 return; 1324 1325 status = ATA_INL(ch->r_mem, AHCI_P_CMD); 1326 if ((status & AHCI_P_CMD_CPD) == 0) 1327 return; 1328 1329 if (bootverbose) { 1330 if (status & AHCI_P_CMD_CPS) { 1331 device_printf(dev, "COLD CONNECT requested\n"); 1332 } else 1333 device_printf(dev, "COLD DISCONNECT requested\n"); 1334 } 1335 ahci_reset(dev); 1336 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1337 return; 1338 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(ch->sim), 1339 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1340 xpt_free_ccb(ccb); 1341 return; 1342 } 1343 xpt_rescan(ccb); 1344} 1345 1346static void 1347ahci_notify_events(device_t dev, u_int32_t status) 1348{ 1349 struct ahci_channel *ch = device_get_softc(dev); 1350 struct cam_path *dpath; 1351 int i; 1352 1353 if (ch->caps & AHCI_CAP_SSNTF) 1354 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1355 if (bootverbose) 1356 device_printf(dev, "SNTF 0x%04x\n", status); 1357 for (i = 0; i < 16; i++) { 1358 if ((status & (1 << i)) == 0) 1359 continue; 1360 if (xpt_create_path(&dpath, NULL, 1361 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1362 xpt_async(AC_SCSI_AEN, dpath, NULL); 1363 xpt_free_path(dpath); 1364 } 1365 } 1366} 1367 1368static void 1369ahci_ch_intr_locked(void *data) 1370{ 1371 device_t dev = (device_t)data; 1372 struct ahci_channel *ch = device_get_softc(dev); 1373 1374 mtx_lock(&ch->mtx); 1375 ahci_ch_intr(data); 1376 mtx_unlock(&ch->mtx); 1377} 1378 1379static void 1380ahci_ch_pm(void *arg) 1381{ 1382 device_t dev = (device_t)arg; 1383 struct ahci_channel *ch = device_get_softc(dev); 1384 uint32_t work; 1385 1386 if (ch->numrslots != 0) 1387 return; 1388 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1389 if (ch->pm_level == 4) 1390 work |= AHCI_P_CMD_PARTIAL; 1391 else 1392 work |= AHCI_P_CMD_SLUMBER; 1393 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1394} 1395 1396static void 1397ahci_ch_intr(void *data) 1398{ 1399 device_t dev = (device_t)data; 1400 struct ahci_channel *ch = device_get_softc(dev); 1401 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1402 enum ahci_err_type et; 1403 int i, ccs, port, reset = 0; 1404 1405 /* Read and clear interrupt statuses. */ 1406 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1407 if (istatus == 0) 1408 return; 1409 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1410 /* Read command statuses. */ 1411 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1412 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1413 if (istatus & AHCI_P_IX_SDB) { 1414 if (ch->caps & AHCI_CAP_SSNTF) 1415 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1416 else if (ch->fbs_enabled) { 1417 u_int8_t *fis = ch->dma.rfis + 0x58; 1418 1419 for (i = 0; i < 16; i++) { 1420 if (fis[1] & 0x80) { 1421 fis[1] &= 0x7f; 1422 sntf |= 1 << i; 1423 } 1424 fis += 256; 1425 } 1426 } else { 1427 u_int8_t *fis = ch->dma.rfis + 0x58; 1428 1429 if (fis[1] & 0x80) 1430 sntf = (1 << (fis[1] & 0x0f)); 1431 } 1432 } 1433 /* Process PHY events */ 1434 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1435 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1436 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1437 if (serr) { 1438 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1439 reset = ahci_phy_check_events(dev, serr); 1440 } 1441 } 1442 /* Process cold presence detection events */ 1443 if ((istatus & AHCI_P_IX_CPD) && !reset) 1444 ahci_cpd_check_events(dev); 1445 /* Process command errors */ 1446 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1447 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1448 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1449 >> AHCI_P_CMD_CCS_SHIFT; 1450//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1451// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1452// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1453 port = -1; 1454 if (ch->fbs_enabled) { 1455 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1456 if (fbs & AHCI_P_FBS_SDE) { 1457 port = (fbs & AHCI_P_FBS_DWE) 1458 >> AHCI_P_FBS_DWE_SHIFT; 1459 } else { 1460 for (i = 0; i < 16; i++) { 1461 if (ch->numrslotspd[i] == 0) 1462 continue; 1463 if (port == -1) 1464 port = i; 1465 else if (port != i) { 1466 port = -2; 1467 break; 1468 } 1469 } 1470 } 1471 } 1472 err = ch->rslots & (cstatus | sstatus); 1473 } else { 1474 ccs = 0; 1475 err = 0; 1476 port = -1; 1477 } 1478 /* Complete all successfull commands. */ 1479 ok = ch->rslots & ~(cstatus | sstatus); 1480 for (i = 0; i < ch->numslots; i++) { 1481 if ((ok >> i) & 1) 1482 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1483 } 1484 /* On error, complete the rest of commands with error statuses. */ 1485 if (err) { 1486 if (ch->frozen) { 1487 union ccb *fccb = ch->frozen; 1488 ch->frozen = NULL; 1489 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1490 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1491 xpt_freeze_devq(fccb->ccb_h.path, 1); 1492 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1493 } 1494 xpt_done(fccb); 1495 } 1496 for (i = 0; i < ch->numslots; i++) { 1497 /* XXX: reqests in loading state. */ 1498 if (((err >> i) & 1) == 0) 1499 continue; 1500 if (port >= 0 && 1501 ch->slot[i].ccb->ccb_h.target_id != port) 1502 continue; 1503 if (istatus & AHCI_P_IX_TFE) { 1504 if (port != -2) { 1505 /* Task File Error */ 1506 if (ch->numtslotspd[ 1507 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1508 /* Untagged operation. */ 1509 if (i == ccs) 1510 et = AHCI_ERR_TFE; 1511 else 1512 et = AHCI_ERR_INNOCENT; 1513 } else { 1514 /* Tagged operation. */ 1515 et = AHCI_ERR_NCQ; 1516 } 1517 } else { 1518 et = AHCI_ERR_TFE; 1519 ch->fatalerr = 1; 1520 } 1521 } else if (istatus & AHCI_P_IX_IF) { 1522 if (ch->numtslots == 0 && i != ccs && port != -2) 1523 et = AHCI_ERR_INNOCENT; 1524 else 1525 et = AHCI_ERR_SATA; 1526 } else 1527 et = AHCI_ERR_INVALID; 1528 ahci_end_transaction(&ch->slot[i], et); 1529 } 1530 /* 1531 * We can't reinit port if there are some other 1532 * commands active, use resume to complete them. 1533 */ 1534 if (ch->rslots != 0 && !ch->recoverycmd) 1535 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1536 } 1537 /* Process NOTIFY events */ 1538 if (sntf) 1539 ahci_notify_events(dev, sntf); 1540} 1541 1542/* Must be called with channel locked. */ 1543static int 1544ahci_check_collision(device_t dev, union ccb *ccb) 1545{ 1546 struct ahci_channel *ch = device_get_softc(dev); 1547 int t = ccb->ccb_h.target_id; 1548 1549 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1550 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1551 /* Tagged command while we have no supported tag free. */ 1552 if (((~ch->oslots) & (0xffffffff >> (32 - 1553 ch->curr[t].tags))) == 0) 1554 return (1); 1555 /* If we have FBS */ 1556 if (ch->fbs_enabled) { 1557 /* Tagged command while untagged are active. */ 1558 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1559 return (1); 1560 } else { 1561 /* Tagged command while untagged are active. */ 1562 if (ch->numrslots != 0 && ch->numtslots == 0) 1563 return (1); 1564 /* Tagged command while tagged to other target is active. */ 1565 if (ch->numtslots != 0 && 1566 ch->taggedtarget != ccb->ccb_h.target_id) 1567 return (1); 1568 } 1569 } else { 1570 /* If we have FBS */ 1571 if (ch->fbs_enabled) { 1572 /* Untagged command while tagged are active. */ 1573 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1574 return (1); 1575 } else { 1576 /* Untagged command while tagged are active. */ 1577 if (ch->numrslots != 0 && ch->numtslots != 0) 1578 return (1); 1579 } 1580 } 1581 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1582 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1583 /* Atomic command while anything active. */ 1584 if (ch->numrslots != 0) 1585 return (1); 1586 } 1587 /* We have some atomic command running. */ 1588 if (ch->aslots != 0) 1589 return (1); 1590 return (0); 1591} 1592 1593/* Must be called with channel locked. */ 1594static void 1595ahci_begin_transaction(device_t dev, union ccb *ccb) 1596{ 1597 struct ahci_channel *ch = device_get_softc(dev); 1598 struct ahci_slot *slot; 1599 int tag, tags; 1600 1601 /* Choose empty slot. */ 1602 tags = ch->numslots; 1603 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1604 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1605 tags = ch->curr[ccb->ccb_h.target_id].tags; 1606 tag = ch->lastslot; 1607 while (1) { 1608 if (tag >= tags) 1609 tag = 0; 1610 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1611 break; 1612 tag++; 1613 }; 1614 ch->lastslot = tag; 1615 /* Occupy chosen slot. */ 1616 slot = &ch->slot[tag]; 1617 slot->ccb = ccb; 1618 /* Stop PM timer. */ 1619 if (ch->numrslots == 0 && ch->pm_level > 3) 1620 callout_stop(&ch->pm_timer); 1621 /* Update channel stats. */ 1622 ch->oslots |= (1 << slot->slot); 1623 ch->numrslots++; 1624 ch->numrslotspd[ccb->ccb_h.target_id]++; 1625 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1626 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1627 ch->numtslots++; 1628 ch->numtslotspd[ccb->ccb_h.target_id]++; 1629 ch->taggedtarget = ccb->ccb_h.target_id; 1630 } 1631 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1632 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1633 ch->aslots |= (1 << slot->slot); 1634 slot->dma.nsegs = 0; 1635 /* If request moves data, setup and load SG list */ 1636 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1637 void *buf; 1638 bus_size_t size; 1639 1640 slot->state = AHCI_SLOT_LOADING; 1641 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1642 buf = ccb->ataio.data_ptr; 1643 size = ccb->ataio.dxfer_len; 1644 } else { 1645 buf = ccb->csio.data_ptr; 1646 size = ccb->csio.dxfer_len; 1647 } 1648 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1649 buf, size, ahci_dmasetprd, slot, 0); 1650 } else 1651 ahci_execute_transaction(slot); 1652} 1653 1654/* Locked by busdma engine. */ 1655static void 1656ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1657{ 1658 struct ahci_slot *slot = arg; 1659 struct ahci_channel *ch = device_get_softc(slot->dev); 1660 struct ahci_cmd_tab *ctp; 1661 struct ahci_dma_prd *prd; 1662 int i; 1663 1664 if (error) { 1665 device_printf(slot->dev, "DMA load error\n"); 1666 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1667 return; 1668 } 1669 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1670 /* Get a piece of the workspace for this request */ 1671 ctp = (struct ahci_cmd_tab *) 1672 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1673 /* Fill S/G table */ 1674 prd = &ctp->prd_tab[0]; 1675 for (i = 0; i < nsegs; i++) { 1676 prd[i].dba = htole64(segs[i].ds_addr); 1677 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1678 } 1679 slot->dma.nsegs = nsegs; 1680 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1681 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1682 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1683 ahci_execute_transaction(slot); 1684} 1685 1686/* Must be called with channel locked. */ 1687static void 1688ahci_execute_transaction(struct ahci_slot *slot) 1689{ 1690 device_t dev = slot->dev; 1691 struct ahci_channel *ch = device_get_softc(dev); 1692 struct ahci_cmd_tab *ctp; 1693 struct ahci_cmd_list *clp; 1694 union ccb *ccb = slot->ccb; 1695 int port = ccb->ccb_h.target_id & 0x0f; 1696 int fis_size, i; 1697 uint8_t *fis = ch->dma.rfis + 0x40; 1698 uint8_t val; 1699 1700 /* Get a piece of the workspace for this request */ 1701 ctp = (struct ahci_cmd_tab *) 1702 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1703 /* Setup the FIS for this request */ 1704 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1705 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1706 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1707 return; 1708 } 1709 /* Setup the command list entry */ 1710 clp = (struct ahci_cmd_list *) 1711 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1712 clp->cmd_flags = htole16( 1713 (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1714 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1715 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1716 (fis_size / sizeof(u_int32_t)) | 1717 (port << 12)); 1718 clp->prd_length = htole16(slot->dma.nsegs); 1719 /* Special handling for Soft Reset command. */ 1720 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1721 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1722 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1723 /* Kick controller into sane state */ 1724 ahci_stop(dev); 1725 ahci_clo(dev); 1726 ahci_start(dev, 0); 1727 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1728 } else { 1729 /* Prepare FIS receive area for check. */ 1730 for (i = 0; i < 20; i++) 1731 fis[i] = 0xff; 1732 } 1733 } 1734 clp->bytecount = 0; 1735 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1736 (AHCI_CT_SIZE * slot->slot)); 1737 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1738 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1739 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1740 BUS_DMASYNC_PREREAD); 1741 /* Set ACTIVE bit for NCQ commands. */ 1742 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1743 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1744 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1745 } 1746 /* If FBS is enabled, set PMP port. */ 1747 if (ch->fbs_enabled) { 1748 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1749 (port << AHCI_P_FBS_DEV_SHIFT)); 1750 } 1751 /* Issue command to the controller. */ 1752 slot->state = AHCI_SLOT_RUNNING; 1753 ch->rslots |= (1 << slot->slot); 1754 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1755 /* Device reset commands doesn't interrupt. Poll them. */ 1756 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1757 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || 1758 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL))) { 1759 int count, timeout = ccb->ccb_h.timeout * 100; 1760 enum ahci_err_type et = AHCI_ERR_NONE; 1761 1762 for (count = 0; count < timeout; count++) { 1763 DELAY(10); 1764 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1765 break; 1766 if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) { 1767 device_printf(ch->dev, 1768 "Poll error on slot %d, TFD: %04x\n", 1769 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1770 et = AHCI_ERR_TFE; 1771 break; 1772 } 1773 /* Workaround for ATI SB600/SB700 chipsets. */ 1774 if (ccb->ccb_h.target_id == 15 && 1775 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1776 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1777 et = AHCI_ERR_TIMEOUT; 1778 break; 1779 } 1780 } 1781 if (timeout && (count >= timeout)) { 1782 device_printf(ch->dev, 1783 "Poll timeout on slot %d\n", slot->slot); 1784 device_printf(dev, "is %08x cs %08x ss %08x " 1785 "rs %08x tfd %02x serr %08x\n", 1786 ATA_INL(ch->r_mem, AHCI_P_IS), 1787 ATA_INL(ch->r_mem, AHCI_P_CI), 1788 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1789 ATA_INL(ch->r_mem, AHCI_P_TFD), 1790 ATA_INL(ch->r_mem, AHCI_P_SERR)); 1791 et = AHCI_ERR_TIMEOUT; 1792 } 1793 /* Marvell controllers do not wait for readyness. */ 1794 if ((ch->quirks & AHCI_Q_NOBSYRES) && 1795 (ccb->ccb_h.func_code == XPT_ATA_IO) && 1796 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1797 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1798 while ((val = fis[2]) & (ATA_S_BUSY | ATA_S_DRQ)) { 1799 DELAY(10); 1800 if (count++ >= timeout) { 1801 device_printf(dev, "device is not " 1802 "ready after soft-reset: " 1803 "tfd = %08x\n", val); 1804 et = AHCI_ERR_TIMEOUT; 1805 break; 1806 } 1807 } 1808 } 1809 ahci_end_transaction(slot, et); 1810 /* Kick controller into sane state and enable FBS. */ 1811 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1812 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1813 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1814 ahci_stop(ch->dev); 1815 ahci_start(ch->dev, 1); 1816 } 1817 return; 1818 } 1819 /* Start command execution timeout */ 1820 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1821 (timeout_t*)ahci_timeout, slot); 1822 return; 1823} 1824 1825/* Must be called with channel locked. */ 1826static void 1827ahci_process_timeout(device_t dev) 1828{ 1829 struct ahci_channel *ch = device_get_softc(dev); 1830 int i; 1831 1832 mtx_assert(&ch->mtx, MA_OWNED); 1833 /* Handle the rest of commands. */ 1834 for (i = 0; i < ch->numslots; i++) { 1835 /* Do we have a running request on slot? */ 1836 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1837 continue; 1838 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1839 } 1840} 1841 1842/* Must be called with channel locked. */ 1843static void 1844ahci_rearm_timeout(device_t dev) 1845{ 1846 struct ahci_channel *ch = device_get_softc(dev); 1847 int i; 1848 1849 mtx_assert(&ch->mtx, MA_OWNED); 1850 for (i = 0; i < ch->numslots; i++) { 1851 struct ahci_slot *slot = &ch->slot[i]; 1852 1853 /* Do we have a running request on slot? */ 1854 if (slot->state < AHCI_SLOT_RUNNING) 1855 continue; 1856 if ((ch->toslots & (1 << i)) == 0) 1857 continue; 1858 callout_reset(&slot->timeout, 1859 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1860 (timeout_t*)ahci_timeout, slot); 1861 } 1862} 1863 1864/* Locked by callout mechanism. */ 1865static void 1866ahci_timeout(struct ahci_slot *slot) 1867{ 1868 device_t dev = slot->dev; 1869 struct ahci_channel *ch = device_get_softc(dev); 1870 uint32_t sstatus; 1871 int ccs; 1872 int i; 1873 1874 /* Check for stale timeout. */ 1875 if (slot->state < AHCI_SLOT_RUNNING) 1876 return; 1877 1878 /* Check if slot was not being executed last time we checked. */ 1879 if (slot->state < AHCI_SLOT_EXECUTING) { 1880 /* Check if slot started executing. */ 1881 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1882 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1883 >> AHCI_P_CMD_CCS_SHIFT; 1884 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1885 ch->fbs_enabled) 1886 slot->state = AHCI_SLOT_EXECUTING; 1887 1888 callout_reset(&slot->timeout, 1889 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1890 (timeout_t*)ahci_timeout, slot); 1891 return; 1892 } 1893 1894 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1895 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x\n", 1896 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1897 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1898 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR)); 1899 1900 /* Handle frozen command. */ 1901 if (ch->frozen) { 1902 union ccb *fccb = ch->frozen; 1903 ch->frozen = NULL; 1904 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1905 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1906 xpt_freeze_devq(fccb->ccb_h.path, 1); 1907 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1908 } 1909 xpt_done(fccb); 1910 } 1911 if (!ch->fbs_enabled) { 1912 /* Without FBS we know real timeout source. */ 1913 ch->fatalerr = 1; 1914 /* Handle command with timeout. */ 1915 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1916 /* Handle the rest of commands. */ 1917 for (i = 0; i < ch->numslots; i++) { 1918 /* Do we have a running request on slot? */ 1919 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1920 continue; 1921 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1922 } 1923 } else { 1924 /* With FBS we wait for other commands timeout and pray. */ 1925 if (ch->toslots == 0) 1926 xpt_freeze_simq(ch->sim, 1); 1927 ch->toslots |= (1 << slot->slot); 1928 if ((ch->rslots & ~ch->toslots) == 0) 1929 ahci_process_timeout(dev); 1930 else 1931 device_printf(dev, " ... waiting for slots %08x\n", 1932 ch->rslots & ~ch->toslots); 1933 } 1934} 1935 1936/* Must be called with channel locked. */ 1937static void 1938ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1939{ 1940 device_t dev = slot->dev; 1941 struct ahci_channel *ch = device_get_softc(dev); 1942 union ccb *ccb = slot->ccb; 1943 struct ahci_cmd_list *clp; 1944 int lastto; 1945 1946 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1947 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1948 clp = (struct ahci_cmd_list *) 1949 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1950 /* Read result registers to the result struct 1951 * May be incorrect if several commands finished same time, 1952 * so read only when sure or have to. 1953 */ 1954 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1955 struct ata_res *res = &ccb->ataio.res; 1956 1957 if ((et == AHCI_ERR_TFE) || 1958 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1959 u_int8_t *fis = ch->dma.rfis + 0x40; 1960 1961 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1962 BUS_DMASYNC_POSTREAD); 1963 if (ch->fbs_enabled) { 1964 fis += ccb->ccb_h.target_id * 256; 1965 res->status = fis[2]; 1966 res->error = fis[3]; 1967 } else { 1968 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 1969 1970 res->status = tfd; 1971 res->error = tfd >> 8; 1972 } 1973 res->lba_low = fis[4]; 1974 res->lba_mid = fis[5]; 1975 res->lba_high = fis[6]; 1976 res->device = fis[7]; 1977 res->lba_low_exp = fis[8]; 1978 res->lba_mid_exp = fis[9]; 1979 res->lba_high_exp = fis[10]; 1980 res->sector_count = fis[12]; 1981 res->sector_count_exp = fis[13]; 1982 } else 1983 bzero(res, sizeof(*res)); 1984 if ((ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) == 0 && 1985 (ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1986 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 1987 ccb->ataio.resid = 1988 ccb->ataio.dxfer_len - le32toh(clp->bytecount); 1989 } 1990 } else { 1991 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 1992 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 1993 ccb->csio.resid = 1994 ccb->csio.dxfer_len - le32toh(clp->bytecount); 1995 } 1996 } 1997 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1998 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1999 (ccb->ccb_h.flags & CAM_DIR_IN) ? 2000 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2001 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 2002 } 2003 if (et != AHCI_ERR_NONE) 2004 ch->eslots |= (1 << slot->slot); 2005 /* In case of error, freeze device for proper recovery. */ 2006 if ((et != AHCI_ERR_NONE) && (!ch->recoverycmd) && 2007 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 2008 xpt_freeze_devq(ccb->ccb_h.path, 1); 2009 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2010 } 2011 /* Set proper result status. */ 2012 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2013 switch (et) { 2014 case AHCI_ERR_NONE: 2015 ccb->ccb_h.status |= CAM_REQ_CMP; 2016 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 2017 ccb->csio.scsi_status = SCSI_STATUS_OK; 2018 break; 2019 case AHCI_ERR_INVALID: 2020 ch->fatalerr = 1; 2021 ccb->ccb_h.status |= CAM_REQ_INVALID; 2022 break; 2023 case AHCI_ERR_INNOCENT: 2024 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 2025 break; 2026 case AHCI_ERR_TFE: 2027 case AHCI_ERR_NCQ: 2028 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2029 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 2030 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 2031 } else { 2032 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2033 } 2034 break; 2035 case AHCI_ERR_SATA: 2036 ch->fatalerr = 1; 2037 if (!ch->recoverycmd) { 2038 xpt_freeze_simq(ch->sim, 1); 2039 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2040 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2041 } 2042 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 2043 break; 2044 case AHCI_ERR_TIMEOUT: 2045 if (!ch->recoverycmd) { 2046 xpt_freeze_simq(ch->sim, 1); 2047 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2048 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2049 } 2050 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2051 break; 2052 default: 2053 ch->fatalerr = 1; 2054 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 2055 } 2056 /* Free slot. */ 2057 ch->oslots &= ~(1 << slot->slot); 2058 ch->rslots &= ~(1 << slot->slot); 2059 ch->aslots &= ~(1 << slot->slot); 2060 slot->state = AHCI_SLOT_EMPTY; 2061 slot->ccb = NULL; 2062 /* Update channel stats. */ 2063 ch->numrslots--; 2064 ch->numrslotspd[ccb->ccb_h.target_id]--; 2065 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2066 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 2067 ch->numtslots--; 2068 ch->numtslotspd[ccb->ccb_h.target_id]--; 2069 } 2070 /* Cancel timeout state if request completed normally. */ 2071 if (et != AHCI_ERR_TIMEOUT) { 2072 lastto = (ch->toslots == (1 << slot->slot)); 2073 ch->toslots &= ~(1 << slot->slot); 2074 if (lastto) 2075 xpt_release_simq(ch->sim, TRUE); 2076 } 2077 /* If it was first request of reset sequence and there is no error, 2078 * proceed to second request. */ 2079 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2080 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2081 (ccb->ataio.cmd.control & ATA_A_RESET) && 2082 et == AHCI_ERR_NONE) { 2083 ccb->ataio.cmd.control &= ~ATA_A_RESET; 2084 ahci_begin_transaction(dev, ccb); 2085 return; 2086 } 2087 /* If it was our READ LOG command - process it. */ 2088 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 2089 ahci_process_read_log(dev, ccb); 2090 /* If it was our REQUEST SENSE command - process it. */ 2091 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 2092 ahci_process_request_sense(dev, ccb); 2093 /* If it was NCQ or ATAPI command error, put result on hold. */ 2094 } else if (et == AHCI_ERR_NCQ || 2095 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 2096 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 2097 ch->hold[slot->slot] = ccb; 2098 ch->numhslots++; 2099 } else 2100 xpt_done(ccb); 2101 /* Unfreeze frozen command. */ 2102 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 2103 union ccb *fccb = ch->frozen; 2104 ch->frozen = NULL; 2105 ahci_begin_transaction(dev, fccb); 2106 xpt_release_simq(ch->sim, TRUE); 2107 } 2108 /* If we have no other active commands, ... */ 2109 if (ch->rslots == 0) { 2110 /* if there was fatal error - reset port. */ 2111 if (ch->toslots != 0 || ch->fatalerr) { 2112 ahci_reset(dev); 2113 } else { 2114 /* if we have slots in error, we can reinit port. */ 2115 if (ch->eslots != 0) { 2116 ahci_stop(dev); 2117 ahci_start(dev, 1); 2118 } 2119 /* if there commands on hold, we can do READ LOG. */ 2120 if (!ch->recoverycmd && ch->numhslots) 2121 ahci_issue_recovery(dev); 2122 } 2123 /* If all the rest of commands are in timeout - give them chance. */ 2124 } else if ((ch->rslots & ~ch->toslots) == 0 && 2125 et != AHCI_ERR_TIMEOUT) 2126 ahci_rearm_timeout(dev); 2127 /* Start PM timer. */ 2128 if (ch->numrslots == 0 && ch->pm_level > 3 && 2129 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2130 callout_schedule(&ch->pm_timer, 2131 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2132 } 2133} 2134 2135static void 2136ahci_issue_recovery(device_t dev) 2137{ 2138 struct ahci_channel *ch = device_get_softc(dev); 2139 union ccb *ccb; 2140 struct ccb_ataio *ataio; 2141 struct ccb_scsiio *csio; 2142 int i; 2143 2144 /* Find some held command. */ 2145 for (i = 0; i < ch->numslots; i++) { 2146 if (ch->hold[i]) 2147 break; 2148 } 2149 ccb = xpt_alloc_ccb_nowait(); 2150 if (ccb == NULL) { 2151 device_printf(dev, "Unable to allocate recovery command\n"); 2152completeall: 2153 /* We can't do anything -- complete held commands. */ 2154 for (i = 0; i < ch->numslots; i++) { 2155 if (ch->hold[i] == NULL) 2156 continue; 2157 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2158 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 2159 xpt_done(ch->hold[i]); 2160 ch->hold[i] = NULL; 2161 ch->numhslots--; 2162 } 2163 ahci_reset(dev); 2164 return; 2165 } 2166 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2167 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2168 /* READ LOG */ 2169 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 2170 ccb->ccb_h.func_code = XPT_ATA_IO; 2171 ccb->ccb_h.flags = CAM_DIR_IN; 2172 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2173 ataio = &ccb->ataio; 2174 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2175 if (ataio->data_ptr == NULL) { 2176 xpt_free_ccb(ccb); 2177 device_printf(dev, 2178 "Unable to allocate memory for READ LOG command\n"); 2179 goto completeall; 2180 } 2181 ataio->dxfer_len = 512; 2182 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2183 ataio->cmd.flags = CAM_ATAIO_48BIT; 2184 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2185 ataio->cmd.sector_count = 1; 2186 ataio->cmd.sector_count_exp = 0; 2187 ataio->cmd.lba_low = 0x10; 2188 ataio->cmd.lba_mid = 0; 2189 ataio->cmd.lba_mid_exp = 0; 2190 } else { 2191 /* REQUEST SENSE */ 2192 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 2193 ccb->ccb_h.recovery_slot = i; 2194 ccb->ccb_h.func_code = XPT_SCSI_IO; 2195 ccb->ccb_h.flags = CAM_DIR_IN; 2196 ccb->ccb_h.status = 0; 2197 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2198 csio = &ccb->csio; 2199 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 2200 csio->dxfer_len = ch->hold[i]->csio.sense_len; 2201 csio->cdb_len = 6; 2202 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 2203 csio->cdb_io.cdb_bytes[0] = 0x03; 2204 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 2205 } 2206 /* Freeze SIM while doing recovery. */ 2207 ch->recoverycmd = 1; 2208 xpt_freeze_simq(ch->sim, 1); 2209 ahci_begin_transaction(dev, ccb); 2210} 2211 2212static void 2213ahci_process_read_log(device_t dev, union ccb *ccb) 2214{ 2215 struct ahci_channel *ch = device_get_softc(dev); 2216 uint8_t *data; 2217 struct ata_res *res; 2218 int i; 2219 2220 ch->recoverycmd = 0; 2221 2222 data = ccb->ataio.data_ptr; 2223 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2224 (data[0] & 0x80) == 0) { 2225 for (i = 0; i < ch->numslots; i++) { 2226 if (!ch->hold[i]) 2227 continue; 2228 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2229 continue; 2230 if ((data[0] & 0x1F) == i) { 2231 res = &ch->hold[i]->ataio.res; 2232 res->status = data[2]; 2233 res->error = data[3]; 2234 res->lba_low = data[4]; 2235 res->lba_mid = data[5]; 2236 res->lba_high = data[6]; 2237 res->device = data[7]; 2238 res->lba_low_exp = data[8]; 2239 res->lba_mid_exp = data[9]; 2240 res->lba_high_exp = data[10]; 2241 res->sector_count = data[12]; 2242 res->sector_count_exp = data[13]; 2243 } else { 2244 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2245 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2246 } 2247 xpt_done(ch->hold[i]); 2248 ch->hold[i] = NULL; 2249 ch->numhslots--; 2250 } 2251 } else { 2252 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2253 device_printf(dev, "Error while READ LOG EXT\n"); 2254 else if ((data[0] & 0x80) == 0) { 2255 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2256 } 2257 for (i = 0; i < ch->numslots; i++) { 2258 if (!ch->hold[i]) 2259 continue; 2260 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2261 continue; 2262 xpt_done(ch->hold[i]); 2263 ch->hold[i] = NULL; 2264 ch->numhslots--; 2265 } 2266 } 2267 free(ccb->ataio.data_ptr, M_AHCI); 2268 xpt_free_ccb(ccb); 2269 xpt_release_simq(ch->sim, TRUE); 2270} 2271 2272static void 2273ahci_process_request_sense(device_t dev, union ccb *ccb) 2274{ 2275 struct ahci_channel *ch = device_get_softc(dev); 2276 int i; 2277 2278 ch->recoverycmd = 0; 2279 2280 i = ccb->ccb_h.recovery_slot; 2281 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 2282 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 2283 } else { 2284 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2285 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 2286 } 2287 xpt_done(ch->hold[i]); 2288 ch->hold[i] = NULL; 2289 ch->numhslots--; 2290 xpt_free_ccb(ccb); 2291 xpt_release_simq(ch->sim, TRUE); 2292} 2293 2294static void 2295ahci_start(device_t dev, int fbs) 2296{ 2297 struct ahci_channel *ch = device_get_softc(dev); 2298 u_int32_t cmd; 2299 2300 /* Clear SATA error register */ 2301 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2302 /* Clear any interrupts pending on this channel */ 2303 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2304 /* Configure FIS-based switching if supported. */ 2305 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2306 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2307 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2308 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2309 } 2310 /* Start operations on this channel */ 2311 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2312 cmd &= ~AHCI_P_CMD_PMA; 2313 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2314 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2315} 2316 2317static void 2318ahci_stop(device_t dev) 2319{ 2320 struct ahci_channel *ch = device_get_softc(dev); 2321 u_int32_t cmd; 2322 int timeout; 2323 2324 /* Kill all activity on this channel */ 2325 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2326 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2327 /* Wait for activity stop. */ 2328 timeout = 0; 2329 do { 2330 DELAY(10); 2331 if (timeout++ > 50000) { 2332 device_printf(dev, "stopping AHCI engine failed\n"); 2333 break; 2334 } 2335 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2336 ch->eslots = 0; 2337} 2338 2339static void 2340ahci_clo(device_t dev) 2341{ 2342 struct ahci_channel *ch = device_get_softc(dev); 2343 u_int32_t cmd; 2344 int timeout; 2345 2346 /* Issue Command List Override if supported */ 2347 if (ch->caps & AHCI_CAP_SCLO) { 2348 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2349 cmd |= AHCI_P_CMD_CLO; 2350 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2351 timeout = 0; 2352 do { 2353 DELAY(10); 2354 if (timeout++ > 50000) { 2355 device_printf(dev, "executing CLO failed\n"); 2356 break; 2357 } 2358 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2359 } 2360} 2361 2362static void 2363ahci_stop_fr(device_t dev) 2364{ 2365 struct ahci_channel *ch = device_get_softc(dev); 2366 u_int32_t cmd; 2367 int timeout; 2368 2369 /* Kill all FIS reception on this channel */ 2370 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2371 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2372 /* Wait for FIS reception stop. */ 2373 timeout = 0; 2374 do { 2375 DELAY(10); 2376 if (timeout++ > 50000) { 2377 device_printf(dev, "stopping AHCI FR engine failed\n"); 2378 break; 2379 } 2380 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2381} 2382 2383static void 2384ahci_start_fr(device_t dev) 2385{ 2386 struct ahci_channel *ch = device_get_softc(dev); 2387 u_int32_t cmd; 2388 2389 /* Start FIS reception on this channel */ 2390 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2391 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2392} 2393 2394static int 2395ahci_wait_ready(device_t dev, int t, int t0) 2396{ 2397 struct ahci_channel *ch = device_get_softc(dev); 2398 int timeout = 0; 2399 uint32_t val; 2400 2401 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2402 (ATA_S_BUSY | ATA_S_DRQ)) { 2403 if (timeout > t) { 2404 if (t != 0) { 2405 device_printf(dev, 2406 "AHCI reset: device not ready after %dms " 2407 "(tfd = %08x)\n", 2408 MAX(t, 0) + t0, val); 2409 } 2410 return (EBUSY); 2411 } 2412 DELAY(1000); 2413 timeout++; 2414 } 2415 if (bootverbose) 2416 device_printf(dev, "AHCI reset: device ready after %dms\n", 2417 timeout + t0); 2418 return (0); 2419} 2420 2421static void 2422ahci_reset_to(void *arg) 2423{ 2424 device_t dev = arg; 2425 struct ahci_channel *ch = device_get_softc(dev); 2426 2427 if (ch->resetting == 0) 2428 return; 2429 ch->resetting--; 2430 if (ahci_wait_ready(dev, ch->resetting == 0 ? -1 : 0, 2431 (310 - ch->resetting) * 100) == 0) { 2432 ch->resetting = 0; 2433 ahci_start(dev, 1); 2434 xpt_release_simq(ch->sim, TRUE); 2435 return; 2436 } 2437 if (ch->resetting == 0) { 2438 ahci_clo(dev); 2439 ahci_start(dev, 1); 2440 xpt_release_simq(ch->sim, TRUE); 2441 return; 2442 } 2443 callout_schedule(&ch->reset_timer, hz / 10); 2444} 2445 2446static void 2447ahci_reset(device_t dev) 2448{ 2449 struct ahci_channel *ch = device_get_softc(dev); 2450 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2451 int i; 2452 2453 xpt_freeze_simq(ch->sim, 1); 2454 if (bootverbose) 2455 device_printf(dev, "AHCI reset...\n"); 2456 /* Forget about previous reset. */ 2457 if (ch->resetting) { 2458 ch->resetting = 0; 2459 callout_stop(&ch->reset_timer); 2460 xpt_release_simq(ch->sim, TRUE); 2461 } 2462 /* Requeue freezed command. */ 2463 if (ch->frozen) { 2464 union ccb *fccb = ch->frozen; 2465 ch->frozen = NULL; 2466 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2467 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2468 xpt_freeze_devq(fccb->ccb_h.path, 1); 2469 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2470 } 2471 xpt_done(fccb); 2472 } 2473 /* Kill the engine and requeue all running commands. */ 2474 ahci_stop(dev); 2475 for (i = 0; i < ch->numslots; i++) { 2476 /* Do we have a running request on slot? */ 2477 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2478 continue; 2479 /* XXX; Commands in loading state. */ 2480 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2481 } 2482 for (i = 0; i < ch->numslots; i++) { 2483 if (!ch->hold[i]) 2484 continue; 2485 xpt_done(ch->hold[i]); 2486 ch->hold[i] = NULL; 2487 ch->numhslots--; 2488 } 2489 if (ch->toslots != 0) 2490 xpt_release_simq(ch->sim, TRUE); 2491 ch->eslots = 0; 2492 ch->toslots = 0; 2493 ch->fatalerr = 0; 2494 /* Tell the XPT about the event */ 2495 xpt_async(AC_BUS_RESET, ch->path, NULL); 2496 /* Disable port interrupts */ 2497 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2498 /* Reset and reconnect PHY, */ 2499 if (!ahci_sata_phy_reset(dev)) { 2500 if (bootverbose) 2501 device_printf(dev, 2502 "AHCI reset: device not found\n"); 2503 ch->devices = 0; 2504 /* Enable wanted port interrupts */ 2505 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2506 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2507 AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2508 xpt_release_simq(ch->sim, TRUE); 2509 return; 2510 } 2511 if (bootverbose) 2512 device_printf(dev, "AHCI reset: device found\n"); 2513 /* Wait for clearing busy status. */ 2514 if (ahci_wait_ready(dev, dumping ? 31000 : 0, 0)) { 2515 if (dumping) 2516 ahci_clo(dev); 2517 else 2518 ch->resetting = 310; 2519 } 2520 ch->devices = 1; 2521 /* Enable wanted port interrupts */ 2522 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2523 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2524 AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2525 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2526 ((ch->pm_level == 0) ? AHCI_P_IX_PRC : 0) | AHCI_P_IX_PC | 2527 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2528 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2529 if (ch->resetting) 2530 callout_reset(&ch->reset_timer, hz / 10, ahci_reset_to, dev); 2531 else { 2532 ahci_start(dev, 1); 2533 xpt_release_simq(ch->sim, TRUE); 2534 } 2535} 2536 2537static int 2538ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2539{ 2540 struct ahci_channel *ch = device_get_softc(dev); 2541 u_int8_t *fis = &ctp->cfis[0]; 2542 2543 bzero(ctp->cfis, 64); 2544 fis[0] = 0x27; /* host to device */ 2545 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2546 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2547 fis[1] |= 0x80; 2548 fis[2] = ATA_PACKET_CMD; 2549 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2550 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2551 fis[3] = ATA_F_DMA; 2552 else { 2553 fis[5] = ccb->csio.dxfer_len; 2554 fis[6] = ccb->csio.dxfer_len >> 8; 2555 } 2556 fis[7] = ATA_D_LBA; 2557 fis[15] = ATA_A_4BIT; 2558 bzero(ctp->acmd, 32); 2559 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2560 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2561 ctp->acmd, ccb->csio.cdb_len); 2562 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2563 fis[1] |= 0x80; 2564 fis[2] = ccb->ataio.cmd.command; 2565 fis[3] = ccb->ataio.cmd.features; 2566 fis[4] = ccb->ataio.cmd.lba_low; 2567 fis[5] = ccb->ataio.cmd.lba_mid; 2568 fis[6] = ccb->ataio.cmd.lba_high; 2569 fis[7] = ccb->ataio.cmd.device; 2570 fis[8] = ccb->ataio.cmd.lba_low_exp; 2571 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2572 fis[10] = ccb->ataio.cmd.lba_high_exp; 2573 fis[11] = ccb->ataio.cmd.features_exp; 2574 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2575 fis[12] = tag << 3; 2576 fis[13] = 0; 2577 } else { 2578 fis[12] = ccb->ataio.cmd.sector_count; 2579 fis[13] = ccb->ataio.cmd.sector_count_exp; 2580 } 2581 fis[15] = ATA_A_4BIT; 2582 } else { 2583 fis[15] = ccb->ataio.cmd.control; 2584 } 2585 return (20); 2586} 2587 2588static int 2589ahci_sata_connect(struct ahci_channel *ch) 2590{ 2591 u_int32_t status; 2592 int timeout, found = 0; 2593 2594 /* Wait up to 100ms for "connect well" */ 2595 for (timeout = 0; timeout < 1000 ; timeout++) { 2596 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2597 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 2598 found = 1; 2599 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2600 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2601 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2602 break; 2603 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2604 if (bootverbose) { 2605 device_printf(ch->dev, "SATA offline status=%08x\n", 2606 status); 2607 } 2608 return (0); 2609 } 2610 if (found == 0 && timeout >= 100) 2611 break; 2612 DELAY(100); 2613 } 2614 if (timeout >= 1000 || !found) { 2615 if (bootverbose) { 2616 device_printf(ch->dev, 2617 "SATA connect timeout time=%dus status=%08x\n", 2618 timeout * 100, status); 2619 } 2620 return (0); 2621 } 2622 if (bootverbose) { 2623 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2624 timeout * 100, status); 2625 } 2626 /* Clear SATA error register */ 2627 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2628 return (1); 2629} 2630 2631static int 2632ahci_sata_phy_reset(device_t dev) 2633{ 2634 struct ahci_channel *ch = device_get_softc(dev); 2635 int sata_rev; 2636 uint32_t val; 2637 2638 if (ch->listening) { 2639 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2640 val |= AHCI_P_CMD_SUD; 2641 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2642 ch->listening = 0; 2643 } 2644 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2645 if (sata_rev == 1) 2646 val = ATA_SC_SPD_SPEED_GEN1; 2647 else if (sata_rev == 2) 2648 val = ATA_SC_SPD_SPEED_GEN2; 2649 else if (sata_rev == 3) 2650 val = ATA_SC_SPD_SPEED_GEN3; 2651 else 2652 val = 0; 2653 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2654 ATA_SC_DET_RESET | val | 2655 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2656 DELAY(1000); 2657 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2658 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2659 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2660 if (!ahci_sata_connect(ch)) { 2661 if (ch->caps & AHCI_CAP_SSS) { 2662 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2663 val &= ~AHCI_P_CMD_SUD; 2664 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2665 ch->listening = 1; 2666 } else if (ch->pm_level > 0) 2667 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2668 return (0); 2669 } 2670 return (1); 2671} 2672 2673static int 2674ahci_check_ids(device_t dev, union ccb *ccb) 2675{ 2676 struct ahci_channel *ch = device_get_softc(dev); 2677 2678 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2679 ccb->ccb_h.status = CAM_TID_INVALID; 2680 xpt_done(ccb); 2681 return (-1); 2682 } 2683 if (ccb->ccb_h.target_lun != 0) { 2684 ccb->ccb_h.status = CAM_LUN_INVALID; 2685 xpt_done(ccb); 2686 return (-1); 2687 } 2688 return (0); 2689} 2690 2691static void 2692ahciaction(struct cam_sim *sim, union ccb *ccb) 2693{ 2694 device_t dev, parent; 2695 struct ahci_channel *ch; 2696 2697 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2698 ccb->ccb_h.func_code)); 2699 2700 ch = (struct ahci_channel *)cam_sim_softc(sim); 2701 dev = ch->dev; 2702 switch (ccb->ccb_h.func_code) { 2703 /* Common cases first */ 2704 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2705 case XPT_SCSI_IO: 2706 if (ahci_check_ids(dev, ccb)) 2707 return; 2708 if (ch->devices == 0 || 2709 (ch->pm_present == 0 && 2710 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2711 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2712 break; 2713 } 2714 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2715 /* Check for command collision. */ 2716 if (ahci_check_collision(dev, ccb)) { 2717 /* Freeze command. */ 2718 ch->frozen = ccb; 2719 /* We have only one frozen slot, so freeze simq also. */ 2720 xpt_freeze_simq(ch->sim, 1); 2721 return; 2722 } 2723 ahci_begin_transaction(dev, ccb); 2724 return; 2725 case XPT_EN_LUN: /* Enable LUN as a target */ 2726 case XPT_TARGET_IO: /* Execute target I/O request */ 2727 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2728 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2729 case XPT_ABORT: /* Abort the specified CCB */ 2730 /* XXX Implement */ 2731 ccb->ccb_h.status = CAM_REQ_INVALID; 2732 break; 2733 case XPT_SET_TRAN_SETTINGS: 2734 { 2735 struct ccb_trans_settings *cts = &ccb->cts; 2736 struct ahci_device *d; 2737 2738 if (ahci_check_ids(dev, ccb)) 2739 return; 2740 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2741 d = &ch->curr[ccb->ccb_h.target_id]; 2742 else 2743 d = &ch->user[ccb->ccb_h.target_id]; 2744 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2745 d->revision = cts->xport_specific.sata.revision; 2746 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2747 d->mode = cts->xport_specific.sata.mode; 2748 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2749 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2750 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2751 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2752 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2753 ch->pm_present = cts->xport_specific.sata.pm_present; 2754 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2755 d->atapi = cts->xport_specific.sata.atapi; 2756 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2757 d->caps = cts->xport_specific.sata.caps; 2758 ccb->ccb_h.status = CAM_REQ_CMP; 2759 break; 2760 } 2761 case XPT_GET_TRAN_SETTINGS: 2762 /* Get default/user set transfer settings for the target */ 2763 { 2764 struct ccb_trans_settings *cts = &ccb->cts; 2765 struct ahci_device *d; 2766 uint32_t status; 2767 2768 if (ahci_check_ids(dev, ccb)) 2769 return; 2770 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2771 d = &ch->curr[ccb->ccb_h.target_id]; 2772 else 2773 d = &ch->user[ccb->ccb_h.target_id]; 2774 cts->protocol = PROTO_ATA; 2775 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2776 cts->transport = XPORT_SATA; 2777 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2778 cts->proto_specific.valid = 0; 2779 cts->xport_specific.sata.valid = 0; 2780 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2781 (ccb->ccb_h.target_id == 15 || 2782 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2783 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2784 if (status & 0x0f0) { 2785 cts->xport_specific.sata.revision = 2786 (status & 0x0f0) >> 4; 2787 cts->xport_specific.sata.valid |= 2788 CTS_SATA_VALID_REVISION; 2789 } 2790 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2791 if (ch->pm_level) { 2792 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2793 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2794 if (ch->caps2 & AHCI_CAP2_APST) 2795 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2796 } 2797 if ((ch->caps & AHCI_CAP_SNCQ) && 2798 (ch->quirks & AHCI_Q_NOAA) == 0) 2799 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2800 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2801 cts->xport_specific.sata.caps &= 2802 ch->user[ccb->ccb_h.target_id].caps; 2803 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2804 } else { 2805 cts->xport_specific.sata.revision = d->revision; 2806 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2807 cts->xport_specific.sata.caps = d->caps; 2808 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2809 } 2810 cts->xport_specific.sata.mode = d->mode; 2811 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2812 cts->xport_specific.sata.bytecount = d->bytecount; 2813 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2814 cts->xport_specific.sata.pm_present = ch->pm_present; 2815 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2816 cts->xport_specific.sata.tags = d->tags; 2817 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2818 cts->xport_specific.sata.atapi = d->atapi; 2819 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2820 ccb->ccb_h.status = CAM_REQ_CMP; 2821 break; 2822 } 2823 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2824 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2825 ahci_reset(dev); 2826 ccb->ccb_h.status = CAM_REQ_CMP; 2827 break; 2828 case XPT_TERM_IO: /* Terminate the I/O process */ 2829 /* XXX Implement */ 2830 ccb->ccb_h.status = CAM_REQ_INVALID; 2831 break; 2832 case XPT_PATH_INQ: /* Path routing inquiry */ 2833 { 2834 struct ccb_pathinq *cpi = &ccb->cpi; 2835 2836 parent = device_get_parent(dev); 2837 cpi->version_num = 1; /* XXX??? */ 2838 cpi->hba_inquiry = PI_SDTR_ABLE; 2839 if (ch->caps & AHCI_CAP_SNCQ) 2840 cpi->hba_inquiry |= PI_TAG_ABLE; 2841 if (ch->caps & AHCI_CAP_SPM) 2842 cpi->hba_inquiry |= PI_SATAPM; 2843 cpi->target_sprt = 0; 2844 cpi->hba_misc = PIM_SEQSCAN; 2845 cpi->hba_eng_cnt = 0; 2846 if (ch->caps & AHCI_CAP_SPM) 2847 cpi->max_target = 15; 2848 else 2849 cpi->max_target = 0; 2850 cpi->max_lun = 0; 2851 cpi->initiator_id = 0; 2852 cpi->bus_id = cam_sim_bus(sim); 2853 cpi->base_transfer_speed = 150000; 2854 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2855 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2856 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2857 cpi->unit_number = cam_sim_unit(sim); 2858 cpi->transport = XPORT_SATA; 2859 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2860 cpi->protocol = PROTO_ATA; 2861 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2862 cpi->maxio = MAXPHYS; 2863 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2864 if (pci_get_devid(parent) == 0x43801002) 2865 cpi->maxio = min(cpi->maxio, 128 * 512); 2866 cpi->hba_vendor = pci_get_vendor(parent); 2867 cpi->hba_device = pci_get_device(parent); 2868 cpi->hba_subvendor = pci_get_subvendor(parent); 2869 cpi->hba_subdevice = pci_get_subdevice(parent); 2870 cpi->ccb_h.status = CAM_REQ_CMP; 2871 break; 2872 } 2873 default: 2874 ccb->ccb_h.status = CAM_REQ_INVALID; 2875 break; 2876 } 2877 xpt_done(ccb); 2878} 2879 2880static void 2881ahcipoll(struct cam_sim *sim) 2882{ 2883 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2884 2885 ahci_ch_intr(ch->dev); 2886 if (ch->resetting != 0 && 2887 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 2888 ch->resetpolldiv = 1000; 2889 ahci_reset_to(ch->dev); 2890 } 2891} 2892