ahci_pci.c revision 216309
174102Salex/*- 274102Salex * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 374102Salex * All rights reserved. 474102Salex * 574102Salex * Redistribution and use in source and binary forms, with or without 674102Salex * modification, are permitted provided that the following conditions 774102Salex * are met: 874102Salex * 1. Redistributions of source code must retain the above copyright 974102Salex * notice, this list of conditions and the following disclaimer, 1074102Salex * without modification, immediately at the beginning of the file. 1174102Salex * 2. Redistributions in binary form must reproduce the above copyright 1274102Salex * notice, this list of conditions and the following disclaimer in the 1374102Salex * documentation and/or other materials provided with the distribution. 1474102Salex * 1574102Salex * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1674102Salex * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1774102Salex * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1874102Salex * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 1974102Salex * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2074102Salex * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2174102Salex * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2274102Salex * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2374102Salex * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2474102Salex * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2574102Salex */ 2674102Salex 2774102Salex#include <sys/cdefs.h> 2874102Salex__FBSDID("$FreeBSD: head/sys/dev/ahci/ahci.c 216309 2010-12-08 20:35:20Z mav $"); 2974102Salex 3074102Salex#include <sys/param.h> 3174102Salex#include <sys/module.h> 3274102Salex#include <sys/systm.h> 3374102Salex#include <sys/kernel.h> 3474102Salex#include <sys/ata.h> 3574102Salex#include <sys/bus.h> 3674102Salex#include <sys/endian.h> 3774102Salex#include <sys/malloc.h> 3888509Sdavidc#include <sys/lock.h> 3984306Sru#include <sys/mutex.h> 4074102Salex#include <sys/sema.h> 4174102Salex#include <sys/taskqueue.h> 4274102Salex#include <vm/uma.h> 4374102Salex#include <machine/stdarg.h> 4474102Salex#include <machine/resource.h> 4574102Salex#include <machine/bus.h> 4674154Sru#include <sys/rman.h> 4774102Salex#include <dev/pci/pcivar.h> 4874102Salex#include <dev/pci/pcireg.h> 4974102Salex#include "ahci.h" 5074102Salex 5174102Salex#include <cam/cam.h> 5274102Salex#include <cam/cam_ccb.h> 5374102Salex#include <cam/cam_sim.h> 5479366Sru#include <cam/cam_xpt_sim.h> 5579366Sru#include <cam/cam_debug.h> 5674102Salex 5774102Salex/* local prototypes */ 5874102Salexstatic int ahci_setup_interrupt(device_t dev); 59267936Sbaptstatic void ahci_intr(void *data); 60static void ahci_intr_one(void *data); 61static int ahci_suspend(device_t dev); 62static int ahci_resume(device_t dev); 63static int ahci_ch_init(device_t dev); 64static int ahci_ch_deinit(device_t dev); 65static int ahci_ch_suspend(device_t dev); 66static int ahci_ch_resume(device_t dev); 67static void ahci_ch_pm(void *arg); 68static void ahci_ch_intr_locked(void *data); 69static void ahci_ch_intr(void *data); 70static int ahci_ctlr_reset(device_t dev); 71static int ahci_ctlr_setup(device_t dev); 72static void ahci_begin_transaction(device_t dev, union ccb *ccb); 73static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 74static void ahci_execute_transaction(struct ahci_slot *slot); 75static void ahci_timeout(struct ahci_slot *slot); 76static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 77static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 78static void ahci_dmainit(device_t dev); 79static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 80static void ahci_dmafini(device_t dev); 81static void ahci_slotsalloc(device_t dev); 82static void ahci_slotsfree(device_t dev); 83static void ahci_reset(device_t dev); 84static void ahci_start(device_t dev, int fbs); 85static void ahci_stop(device_t dev); 86static void ahci_clo(device_t dev); 87static void ahci_start_fr(device_t dev); 88static void ahci_stop_fr(device_t dev); 89 90static int ahci_sata_connect(struct ahci_channel *ch); 91static int ahci_sata_phy_reset(device_t dev); 92static int ahci_wait_ready(device_t dev, int t); 93 94static void ahci_issue_read_log(device_t dev); 95static void ahci_process_read_log(device_t dev, union ccb *ccb); 96 97static void ahciaction(struct cam_sim *sim, union ccb *ccb); 98static void ahcipoll(struct cam_sim *sim); 99 100MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 101 102static struct { 103 uint32_t id; 104 uint8_t rev; 105 const char *name; 106 int quirks; 107#define AHCI_Q_NOFORCE 1 108#define AHCI_Q_NOPMP 2 109#define AHCI_Q_NONCQ 4 110#define AHCI_Q_1CH 8 111#define AHCI_Q_2CH 16 112#define AHCI_Q_4CH 32 113#define AHCI_Q_EDGEIS 64 114#define AHCI_Q_SATA2 128 115#define AHCI_Q_NOBSYRES 256 116#define AHCI_Q_NOAA 512 117} ahci_ids[] = { 118 {0x43801002, 0x00, "ATI IXP600", 0}, 119 {0x43901002, 0x00, "ATI IXP700", 0}, 120 {0x43911002, 0x00, "ATI IXP700", 0}, 121 {0x43921002, 0x00, "ATI IXP700", 0}, 122 {0x43931002, 0x00, "ATI IXP700", 0}, 123 {0x43941002, 0x00, "ATI IXP800", 0}, 124 {0x43951002, 0x00, "ATI IXP800", 0}, 125 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 126 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 127 {0x26818086, 0x00, "Intel ESB2", 0}, 128 {0x26828086, 0x00, "Intel ESB2", 0}, 129 {0x26838086, 0x00, "Intel ESB2", 0}, 130 {0x27c18086, 0x00, "Intel ICH7", 0}, 131 {0x27c38086, 0x00, "Intel ICH7", 0}, 132 {0x27c58086, 0x00, "Intel ICH7M", 0}, 133 {0x27c68086, 0x00, "Intel ICH7M", 0}, 134 {0x28218086, 0x00, "Intel ICH8", 0}, 135 {0x28228086, 0x00, "Intel ICH8", 0}, 136 {0x28248086, 0x00, "Intel ICH8", 0}, 137 {0x28298086, 0x00, "Intel ICH8M", 0}, 138 {0x282a8086, 0x00, "Intel ICH8M", 0}, 139 {0x29228086, 0x00, "Intel ICH9", 0}, 140 {0x29238086, 0x00, "Intel ICH9", 0}, 141 {0x29248086, 0x00, "Intel ICH9", 0}, 142 {0x29258086, 0x00, "Intel ICH9", 0}, 143 {0x29278086, 0x00, "Intel ICH9", 0}, 144 {0x29298086, 0x00, "Intel ICH9M", 0}, 145 {0x292a8086, 0x00, "Intel ICH9M", 0}, 146 {0x292b8086, 0x00, "Intel ICH9M", 0}, 147 {0x292c8086, 0x00, "Intel ICH9M", 0}, 148 {0x292f8086, 0x00, "Intel ICH9M", 0}, 149 {0x294d8086, 0x00, "Intel ICH9", 0}, 150 {0x294e8086, 0x00, "Intel ICH9M", 0}, 151 {0x3a058086, 0x00, "Intel ICH10", 0}, 152 {0x3a228086, 0x00, "Intel ICH10", 0}, 153 {0x3a258086, 0x00, "Intel ICH10", 0}, 154 {0x3b228086, 0x00, "Intel 5 Series/3400 Series", 0}, 155 {0x3b238086, 0x00, "Intel 5 Series/3400 Series", 0}, 156 {0x3b258086, 0x00, "Intel 5 Series/3400 Series", 0}, 157 {0x3b298086, 0x00, "Intel 5 Series/3400 Series", 0}, 158 {0x3b2c8086, 0x00, "Intel 5 Series/3400 Series", 0}, 159 {0x3b2f8086, 0x00, "Intel 5 Series/3400 Series", 0}, 160 {0x1c028086, 0x00, "Intel Cougar Point", 0}, 161 {0x1c038086, 0x00, "Intel Cougar Point", 0}, 162 {0x1c048086, 0x00, "Intel Cougar Point", 0}, 163 {0x1c058086, 0x00, "Intel Cougar Point", 0}, 164 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 165 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 166 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 167 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 168 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 169 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE|AHCI_Q_1CH|AHCI_Q_EDGEIS}, 170 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE|AHCI_Q_2CH|AHCI_Q_EDGEIS}, 171 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 172 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 173 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES}, 174 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 175 {0x06201103, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 176 {0x06201b4b, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 177 {0x06221103, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 178 {0x06221b4b, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 179 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 180 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 181 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 182 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 183 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 184 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 185 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 186 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 187 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 188 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 189 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 190 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 191 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 192 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 193 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 194 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 195 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 196 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 197 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 198 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 199 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 200 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 201 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 202 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 203 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 204 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 205 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 206 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 207 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 208 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 209 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 210 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 211 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 212 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 213 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 214 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 215 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 216 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 217 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 218 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 219 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 220 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 221 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 222 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 223 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 224 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 225 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 226 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 227 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 228 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 229 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 230 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 231 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 232 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 233 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 234 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 235 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 236 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 237 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 238 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 239 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 240 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 241 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 242 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 243 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 244 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 245 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 246 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 247 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 248 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 249 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 250 {0x11841039, 0x00, "SiS 966", 0}, 251 {0x11851039, 0x00, "SiS 968", 0}, 252 {0x01861039, 0x00, "SiS 968", 0}, 253 {0x00000000, 0x00, NULL, 0} 254}; 255 256static int 257ahci_probe(device_t dev) 258{ 259 char buf[64]; 260 int i, valid = 0; 261 uint32_t devid = pci_get_devid(dev); 262 uint8_t revid = pci_get_revid(dev); 263 264 /* Is this a possible AHCI candidate? */ 265 if (pci_get_class(dev) == PCIC_STORAGE && 266 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 267 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 268 valid = 1; 269 /* Is this a known AHCI chip? */ 270 for (i = 0; ahci_ids[i].id != 0; i++) { 271 if (ahci_ids[i].id == devid && 272 ahci_ids[i].rev <= revid && 273 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 274 /* Do not attach JMicrons with single PCI function. */ 275 if (pci_get_vendor(dev) == 0x197b && 276 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 277 return (ENXIO); 278 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 279 ahci_ids[i].name); 280 device_set_desc_copy(dev, buf); 281 return (BUS_PROBE_VENDOR); 282 } 283 } 284 if (!valid) 285 return (ENXIO); 286 device_set_desc_copy(dev, "AHCI SATA controller"); 287 return (BUS_PROBE_VENDOR); 288} 289 290static int 291ahci_ata_probe(device_t dev) 292{ 293 char buf[64]; 294 int i; 295 uint32_t devid = pci_get_devid(dev); 296 uint8_t revid = pci_get_revid(dev); 297 298 if ((intptr_t)device_get_ivars(dev) >= 0) 299 return (ENXIO); 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 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 305 ahci_ids[i].name); 306 device_set_desc_copy(dev, buf); 307 return (BUS_PROBE_VENDOR); 308 } 309 } 310 device_set_desc_copy(dev, "AHCI SATA controller"); 311 return (BUS_PROBE_VENDOR); 312} 313 314static int 315ahci_attach(device_t dev) 316{ 317 struct ahci_controller *ctlr = device_get_softc(dev); 318 device_t child; 319 int error, unit, speed, i; 320 uint32_t devid = pci_get_devid(dev); 321 uint8_t revid = pci_get_revid(dev); 322 u_int32_t version; 323 324 ctlr->dev = dev; 325 i = 0; 326 while (ahci_ids[i].id != 0 && 327 (ahci_ids[i].id != devid || 328 ahci_ids[i].rev > revid)) 329 i++; 330 ctlr->quirks = ahci_ids[i].quirks; 331 resource_int_value(device_get_name(dev), 332 device_get_unit(dev), "ccc", &ctlr->ccc); 333 /* if we have a memory BAR(5) we are likely on an AHCI part */ 334 ctlr->r_rid = PCIR_BAR(5); 335 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 336 &ctlr->r_rid, RF_ACTIVE))) 337 return ENXIO; 338 /* Setup our own memory management for channels. */ 339 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 340 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 341 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 342 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 343 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 344 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 345 return (error); 346 } 347 if ((error = rman_manage_region(&ctlr->sc_iomem, 348 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 349 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 350 rman_fini(&ctlr->sc_iomem); 351 return (error); 352 } 353 pci_enable_busmaster(dev); 354 /* Reset controller */ 355 if ((error = ahci_ctlr_reset(dev)) != 0) { 356 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 357 rman_fini(&ctlr->sc_iomem); 358 return (error); 359 }; 360 /* Get the HW capabilities */ 361 version = ATA_INL(ctlr->r_mem, AHCI_VS); 362 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 363 if (version >= 0x00010020) 364 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 365 if (ctlr->caps & AHCI_CAP_EMS) 366 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 367 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 368 if (ctlr->quirks & AHCI_Q_1CH) { 369 ctlr->caps &= ~AHCI_CAP_NPMASK; 370 ctlr->ichannels &= 0x01; 371 } 372 if (ctlr->quirks & AHCI_Q_2CH) { 373 ctlr->caps &= ~AHCI_CAP_NPMASK; 374 ctlr->caps |= 1; 375 ctlr->ichannels &= 0x03; 376 } 377 if (ctlr->quirks & AHCI_Q_4CH) { 378 ctlr->caps &= ~AHCI_CAP_NPMASK; 379 ctlr->caps |= 3; 380 ctlr->ichannels &= 0x0f; 381 } 382 ctlr->channels = MAX(flsl(ctlr->ichannels), 383 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 384 if (ctlr->quirks & AHCI_Q_NOPMP) 385 ctlr->caps &= ~AHCI_CAP_SPM; 386 if (ctlr->quirks & AHCI_Q_NONCQ) 387 ctlr->caps &= ~AHCI_CAP_SNCQ; 388 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 389 ctlr->ccc = 0; 390 ahci_ctlr_setup(dev); 391 /* Setup interrupts. */ 392 if (ahci_setup_interrupt(dev)) { 393 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 394 rman_fini(&ctlr->sc_iomem); 395 return ENXIO; 396 } 397 /* Announce HW capabilities. */ 398 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 399 device_printf(dev, 400 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 401 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 402 ((version >> 4) & 0xf0) + (version & 0x0f), 403 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 404 ((speed == 1) ? "1.5":((speed == 2) ? "3": 405 ((speed == 3) ? "6":"?"))), 406 (ctlr->caps & AHCI_CAP_SPM) ? 407 "supported" : "not supported", 408 (ctlr->caps & AHCI_CAP_FBSS) ? 409 " with FBS" : ""); 410 if (bootverbose) { 411 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 412 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 413 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 414 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 415 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 416 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 417 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 418 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 419 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 420 ((speed == 1) ? "1.5":((speed == 2) ? "3": 421 ((speed == 3) ? "6":"?")))); 422 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 423 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 424 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 425 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 426 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 427 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 428 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 429 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 430 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 431 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 432 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 433 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 434 } 435 if (bootverbose && version >= 0x00010020) { 436 device_printf(dev, "Caps2:%s%s%s\n", 437 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 438 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 439 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 440 } 441 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 442 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 443 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 444 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 445 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 446 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 447 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 448 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 449 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 450 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 451 } 452 /* Attach all channels on this controller */ 453 for (unit = 0; unit < ctlr->channels; unit++) { 454 if ((ctlr->ichannels & (1 << unit)) == 0) 455 continue; 456 child = device_add_child(dev, "ahcich", -1); 457 if (child == NULL) 458 device_printf(dev, "failed to add channel device\n"); 459 else 460 device_set_ivars(child, (void *)(intptr_t)unit); 461 } 462 bus_generic_attach(dev); 463 return 0; 464} 465 466static int 467ahci_detach(device_t dev) 468{ 469 struct ahci_controller *ctlr = device_get_softc(dev); 470 device_t *children; 471 int nchildren, i; 472 473 /* Detach & delete all children */ 474 if (!device_get_children(dev, &children, &nchildren)) { 475 for (i = 0; i < nchildren; i++) 476 device_delete_child(dev, children[i]); 477 free(children, M_TEMP); 478 } 479 /* Free interrupts. */ 480 for (i = 0; i < ctlr->numirqs; i++) { 481 if (ctlr->irqs[i].r_irq) { 482 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 483 ctlr->irqs[i].handle); 484 bus_release_resource(dev, SYS_RES_IRQ, 485 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 486 } 487 } 488 pci_release_msi(dev); 489 /* Free memory. */ 490 rman_fini(&ctlr->sc_iomem); 491 if (ctlr->r_mem) 492 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 493 return (0); 494} 495 496static int 497ahci_ctlr_reset(device_t dev) 498{ 499 struct ahci_controller *ctlr = device_get_softc(dev); 500 int timeout; 501 502 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 503 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 504 pci_write_config(dev, 0x92, 0x01, 1); 505 /* Enable AHCI mode */ 506 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 507 /* Reset AHCI controller */ 508 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 509 for (timeout = 1000; timeout > 0; timeout--) { 510 DELAY(1000); 511 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 512 break; 513 } 514 if (timeout == 0) { 515 device_printf(dev, "AHCI controller reset failure\n"); 516 return ENXIO; 517 } 518 /* Reenable AHCI mode */ 519 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 520 return (0); 521} 522 523static int 524ahci_ctlr_setup(device_t dev) 525{ 526 struct ahci_controller *ctlr = device_get_softc(dev); 527 /* Clear interrupts */ 528 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 529 /* Configure CCC */ 530 if (ctlr->ccc) { 531 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 532 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 533 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 534 (4 << AHCI_CCCC_CC_SHIFT) | 535 AHCI_CCCC_EN); 536 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 537 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 538 if (bootverbose) { 539 device_printf(dev, 540 "CCC with %dms/4cmd enabled on vector %d\n", 541 ctlr->ccc, ctlr->cccv); 542 } 543 } 544 /* Enable AHCI interrupts */ 545 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 546 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 547 return (0); 548} 549 550static int 551ahci_suspend(device_t dev) 552{ 553 struct ahci_controller *ctlr = device_get_softc(dev); 554 555 bus_generic_suspend(dev); 556 /* Disable interupts, so the state change(s) doesn't trigger */ 557 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 558 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 559 return 0; 560} 561 562static int 563ahci_resume(device_t dev) 564{ 565 int res; 566 567 if ((res = ahci_ctlr_reset(dev)) != 0) 568 return (res); 569 ahci_ctlr_setup(dev); 570 return (bus_generic_resume(dev)); 571} 572 573static int 574ahci_setup_interrupt(device_t dev) 575{ 576 struct ahci_controller *ctlr = device_get_softc(dev); 577 int i, msi = 1; 578 579 /* Process hints. */ 580 resource_int_value(device_get_name(dev), 581 device_get_unit(dev), "msi", &msi); 582 if (msi < 0) 583 msi = 0; 584 else if (msi == 1) 585 msi = min(1, pci_msi_count(dev)); 586 else if (msi > 1) 587 msi = pci_msi_count(dev); 588 /* Allocate MSI if needed/present. */ 589 if (msi && pci_alloc_msi(dev, &msi) == 0) { 590 ctlr->numirqs = msi; 591 } else { 592 msi = 0; 593 ctlr->numirqs = 1; 594 } 595 /* Check for single MSI vector fallback. */ 596 if (ctlr->numirqs > 1 && 597 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 598 device_printf(dev, "Falling back to one MSI\n"); 599 ctlr->numirqs = 1; 600 } 601 /* Allocate all IRQs. */ 602 for (i = 0; i < ctlr->numirqs; i++) { 603 ctlr->irqs[i].ctlr = ctlr; 604 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 605 if (ctlr->numirqs == 1 || i >= ctlr->channels || 606 (ctlr->ccc && i == ctlr->cccv)) 607 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 608 else if (i == ctlr->numirqs - 1) 609 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 610 else 611 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 612 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 613 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 614 device_printf(dev, "unable to map interrupt\n"); 615 return ENXIO; 616 } 617 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 618 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 619 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 620 /* SOS XXX release r_irq */ 621 device_printf(dev, "unable to setup interrupt\n"); 622 return ENXIO; 623 } 624 if (ctlr->numirqs > 1) { 625 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 626 ctlr->irqs[i].handle, 627 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 628 "ch%d" : "%d", i); 629 } 630 } 631 return (0); 632} 633 634/* 635 * Common case interrupt handler. 636 */ 637static void 638ahci_intr(void *data) 639{ 640 struct ahci_controller_irq *irq = data; 641 struct ahci_controller *ctlr = irq->ctlr; 642 u_int32_t is, ise = 0; 643 void *arg; 644 int unit; 645 646 if (irq->mode == AHCI_IRQ_MODE_ALL) { 647 unit = 0; 648 if (ctlr->ccc) 649 is = ctlr->ichannels; 650 else 651 is = ATA_INL(ctlr->r_mem, AHCI_IS); 652 } else { /* AHCI_IRQ_MODE_AFTER */ 653 unit = irq->r_irq_rid - 1; 654 is = ATA_INL(ctlr->r_mem, AHCI_IS); 655 } 656 /* CCC interrupt is edge triggered. */ 657 if (ctlr->ccc) 658 ise = 1 << ctlr->cccv; 659 /* Some controllers have edge triggered IS. */ 660 if (ctlr->quirks & AHCI_Q_EDGEIS) 661 ise |= is; 662 if (ise != 0) 663 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 664 for (; unit < ctlr->channels; unit++) { 665 if ((is & (1 << unit)) != 0 && 666 (arg = ctlr->interrupt[unit].argument)) { 667 ctlr->interrupt[unit].function(arg); 668 } 669 } 670 /* AHCI declares level triggered IS. */ 671 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 672 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 673} 674 675/* 676 * Simplified interrupt handler for multivector MSI mode. 677 */ 678static void 679ahci_intr_one(void *data) 680{ 681 struct ahci_controller_irq *irq = data; 682 struct ahci_controller *ctlr = irq->ctlr; 683 void *arg; 684 int unit; 685 686 unit = irq->r_irq_rid - 1; 687 /* Some controllers have edge triggered IS. */ 688 if (ctlr->quirks & AHCI_Q_EDGEIS) 689 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 690 if ((arg = ctlr->interrupt[unit].argument)) 691 ctlr->interrupt[unit].function(arg); 692 /* AHCI declares level triggered IS. */ 693 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 694 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 695} 696 697static struct resource * 698ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 699 u_long start, u_long end, u_long count, u_int flags) 700{ 701 struct ahci_controller *ctlr = device_get_softc(dev); 702 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 703 struct resource *res = NULL; 704 int offset = AHCI_OFFSET + (unit << 7); 705 long st; 706 707 switch (type) { 708 case SYS_RES_MEMORY: 709 st = rman_get_start(ctlr->r_mem); 710 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 711 st + offset + 127, 128, RF_ACTIVE, child); 712 if (res) { 713 bus_space_handle_t bsh; 714 bus_space_tag_t bst; 715 bsh = rman_get_bushandle(ctlr->r_mem); 716 bst = rman_get_bustag(ctlr->r_mem); 717 bus_space_subregion(bst, bsh, offset, 128, &bsh); 718 rman_set_bushandle(res, bsh); 719 rman_set_bustag(res, bst); 720 } 721 break; 722 case SYS_RES_IRQ: 723 if (*rid == ATA_IRQ_RID) 724 res = ctlr->irqs[0].r_irq; 725 break; 726 } 727 return (res); 728} 729 730static int 731ahci_release_resource(device_t dev, device_t child, int type, int rid, 732 struct resource *r) 733{ 734 735 switch (type) { 736 case SYS_RES_MEMORY: 737 rman_release_resource(r); 738 return (0); 739 case SYS_RES_IRQ: 740 if (rid != ATA_IRQ_RID) 741 return ENOENT; 742 return (0); 743 } 744 return (EINVAL); 745} 746 747static int 748ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 749 int flags, driver_filter_t *filter, driver_intr_t *function, 750 void *argument, void **cookiep) 751{ 752 struct ahci_controller *ctlr = device_get_softc(dev); 753 int unit = (intptr_t)device_get_ivars(child); 754 755 if (filter != NULL) { 756 printf("ahci.c: we cannot use a filter here\n"); 757 return (EINVAL); 758 } 759 ctlr->interrupt[unit].function = function; 760 ctlr->interrupt[unit].argument = argument; 761 return (0); 762} 763 764static int 765ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 766 void *cookie) 767{ 768 struct ahci_controller *ctlr = device_get_softc(dev); 769 int unit = (intptr_t)device_get_ivars(child); 770 771 ctlr->interrupt[unit].function = NULL; 772 ctlr->interrupt[unit].argument = NULL; 773 return (0); 774} 775 776static int 777ahci_print_child(device_t dev, device_t child) 778{ 779 int retval; 780 781 retval = bus_print_child_header(dev, child); 782 retval += printf(" at channel %d", 783 (int)(intptr_t)device_get_ivars(child)); 784 retval += bus_print_child_footer(dev, child); 785 786 return (retval); 787} 788 789static int 790ahci_child_location_str(device_t dev, device_t child, char *buf, 791 size_t buflen) 792{ 793 794 snprintf(buf, buflen, "channel=%d", 795 (int)(intptr_t)device_get_ivars(child)); 796 return (0); 797} 798 799devclass_t ahci_devclass; 800static device_method_t ahci_methods[] = { 801 DEVMETHOD(device_probe, ahci_probe), 802 DEVMETHOD(device_attach, ahci_attach), 803 DEVMETHOD(device_detach, ahci_detach), 804 DEVMETHOD(device_suspend, ahci_suspend), 805 DEVMETHOD(device_resume, ahci_resume), 806 DEVMETHOD(bus_print_child, ahci_print_child), 807 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 808 DEVMETHOD(bus_release_resource, ahci_release_resource), 809 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 810 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 811 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 812 { 0, 0 } 813}; 814static driver_t ahci_driver = { 815 "ahci", 816 ahci_methods, 817 sizeof(struct ahci_controller) 818}; 819DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 820static device_method_t ahci_ata_methods[] = { 821 DEVMETHOD(device_probe, ahci_ata_probe), 822 DEVMETHOD(device_attach, ahci_attach), 823 DEVMETHOD(device_detach, ahci_detach), 824 DEVMETHOD(device_suspend, ahci_suspend), 825 DEVMETHOD(device_resume, ahci_resume), 826 DEVMETHOD(bus_print_child, ahci_print_child), 827 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 828 DEVMETHOD(bus_release_resource, ahci_release_resource), 829 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 830 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 831 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 832 { 0, 0 } 833}; 834static driver_t ahci_ata_driver = { 835 "ahci", 836 ahci_ata_methods, 837 sizeof(struct ahci_controller) 838}; 839DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 840MODULE_VERSION(ahci, 1); 841MODULE_DEPEND(ahci, cam, 1, 1, 1); 842 843static int 844ahci_ch_probe(device_t dev) 845{ 846 847 device_set_desc_copy(dev, "AHCI channel"); 848 return (0); 849} 850 851static int 852ahci_ch_attach(device_t dev) 853{ 854 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 855 struct ahci_channel *ch = device_get_softc(dev); 856 struct cam_devq *devq; 857 int rid, error, i, sata_rev = 0; 858 u_int32_t version; 859 860 ch->dev = dev; 861 ch->unit = (intptr_t)device_get_ivars(dev); 862 ch->caps = ctlr->caps; 863 ch->caps2 = ctlr->caps2; 864 ch->quirks = ctlr->quirks; 865 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1; 866 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 867 resource_int_value(device_get_name(dev), 868 device_get_unit(dev), "pm_level", &ch->pm_level); 869 if (ch->pm_level > 3) 870 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 871 /* Limit speed for my onboard JMicron external port. 872 * It is not eSATA really. */ 873 if (pci_get_devid(ctlr->dev) == 0x2363197b && 874 pci_get_subvendor(ctlr->dev) == 0x1043 && 875 pci_get_subdevice(ctlr->dev) == 0x81e4 && 876 ch->unit == 0) 877 sata_rev = 1; 878 if (ch->quirks & AHCI_Q_SATA2) 879 sata_rev = 2; 880 resource_int_value(device_get_name(dev), 881 device_get_unit(dev), "sata_rev", &sata_rev); 882 for (i = 0; i < 16; i++) { 883 ch->user[i].revision = sata_rev; 884 ch->user[i].mode = 0; 885 ch->user[i].bytecount = 8192; 886 ch->user[i].tags = ch->numslots; 887 ch->user[i].caps = 0; 888 ch->curr[i] = ch->user[i]; 889 if (ch->pm_level) { 890 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 891 CTS_SATA_CAPS_H_APST | 892 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 893 } 894 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA; 895 } 896 rid = ch->unit; 897 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 898 &rid, RF_ACTIVE))) 899 return (ENXIO); 900 ahci_dmainit(dev); 901 ahci_slotsalloc(dev); 902 ahci_ch_init(dev); 903 mtx_lock(&ch->mtx); 904 rid = ATA_IRQ_RID; 905 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 906 &rid, RF_SHAREABLE | RF_ACTIVE))) { 907 device_printf(dev, "Unable to map interrupt\n"); 908 error = ENXIO; 909 goto err0; 910 } 911 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 912 ahci_ch_intr_locked, dev, &ch->ih))) { 913 device_printf(dev, "Unable to setup interrupt\n"); 914 error = ENXIO; 915 goto err1; 916 } 917 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 918 version = ATA_INL(ctlr->r_mem, AHCI_VS); 919 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 920 ch->chcaps |= AHCI_P_CMD_FBSCP; 921 if (bootverbose) { 922 device_printf(dev, "Caps:%s%s%s%s%s\n", 923 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 924 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 925 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 926 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 927 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 928 } 929 /* Create the device queue for our SIM. */ 930 devq = cam_simq_alloc(ch->numslots); 931 if (devq == NULL) { 932 device_printf(dev, "Unable to allocate simq\n"); 933 error = ENOMEM; 934 goto err1; 935 } 936 /* Construct SIM entry */ 937 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 938 device_get_unit(dev), &ch->mtx, 939 min(2, ch->numslots), 940 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 941 devq); 942 if (ch->sim == NULL) { 943 cam_simq_free(devq); 944 device_printf(dev, "unable to allocate sim\n"); 945 error = ENOMEM; 946 goto err1; 947 } 948 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 949 device_printf(dev, "unable to register xpt bus\n"); 950 error = ENXIO; 951 goto err2; 952 } 953 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 954 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 955 device_printf(dev, "unable to create path\n"); 956 error = ENXIO; 957 goto err3; 958 } 959 if (ch->pm_level > 3) { 960 callout_reset(&ch->pm_timer, 961 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 962 ahci_ch_pm, dev); 963 } 964 mtx_unlock(&ch->mtx); 965 return (0); 966 967err3: 968 xpt_bus_deregister(cam_sim_path(ch->sim)); 969err2: 970 cam_sim_free(ch->sim, /*free_devq*/TRUE); 971err1: 972 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 973err0: 974 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 975 mtx_unlock(&ch->mtx); 976 mtx_destroy(&ch->mtx); 977 return (error); 978} 979 980static int 981ahci_ch_detach(device_t dev) 982{ 983 struct ahci_channel *ch = device_get_softc(dev); 984 985 mtx_lock(&ch->mtx); 986 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 987 xpt_free_path(ch->path); 988 xpt_bus_deregister(cam_sim_path(ch->sim)); 989 cam_sim_free(ch->sim, /*free_devq*/TRUE); 990 mtx_unlock(&ch->mtx); 991 992 if (ch->pm_level > 3) 993 callout_drain(&ch->pm_timer); 994 bus_teardown_intr(dev, ch->r_irq, ch->ih); 995 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 996 997 ahci_ch_deinit(dev); 998 ahci_slotsfree(dev); 999 ahci_dmafini(dev); 1000 1001 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1002 mtx_destroy(&ch->mtx); 1003 return (0); 1004} 1005 1006static int 1007ahci_ch_init(device_t dev) 1008{ 1009 struct ahci_channel *ch = device_get_softc(dev); 1010 uint64_t work; 1011 1012 /* Disable port interrupts */ 1013 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1014 /* Setup work areas */ 1015 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1016 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1017 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1018 work = ch->dma.rfis_bus; 1019 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1020 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1021 /* Activate the channel and power/spin up device */ 1022 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1023 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1024 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1025 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1026 ahci_start_fr(dev); 1027 ahci_start(dev, 1); 1028 return (0); 1029} 1030 1031static int 1032ahci_ch_deinit(device_t dev) 1033{ 1034 struct ahci_channel *ch = device_get_softc(dev); 1035 1036 /* Disable port interrupts. */ 1037 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1038 /* Reset command register. */ 1039 ahci_stop(dev); 1040 ahci_stop_fr(dev); 1041 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1042 /* Allow everything, including partial and slumber modes. */ 1043 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1044 /* Request slumber mode transition and give some time to get there. */ 1045 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1046 DELAY(100); 1047 /* Disable PHY. */ 1048 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1049 return (0); 1050} 1051 1052static int 1053ahci_ch_suspend(device_t dev) 1054{ 1055 struct ahci_channel *ch = device_get_softc(dev); 1056 1057 mtx_lock(&ch->mtx); 1058 xpt_freeze_simq(ch->sim, 1); 1059 while (ch->oslots) 1060 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1061 ahci_ch_deinit(dev); 1062 mtx_unlock(&ch->mtx); 1063 return (0); 1064} 1065 1066static int 1067ahci_ch_resume(device_t dev) 1068{ 1069 struct ahci_channel *ch = device_get_softc(dev); 1070 1071 mtx_lock(&ch->mtx); 1072 ahci_ch_init(dev); 1073 ahci_reset(dev); 1074 xpt_release_simq(ch->sim, TRUE); 1075 mtx_unlock(&ch->mtx); 1076 return (0); 1077} 1078 1079devclass_t ahcich_devclass; 1080static device_method_t ahcich_methods[] = { 1081 DEVMETHOD(device_probe, ahci_ch_probe), 1082 DEVMETHOD(device_attach, ahci_ch_attach), 1083 DEVMETHOD(device_detach, ahci_ch_detach), 1084 DEVMETHOD(device_suspend, ahci_ch_suspend), 1085 DEVMETHOD(device_resume, ahci_ch_resume), 1086 { 0, 0 } 1087}; 1088static driver_t ahcich_driver = { 1089 "ahcich", 1090 ahcich_methods, 1091 sizeof(struct ahci_channel) 1092}; 1093DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1094 1095struct ahci_dc_cb_args { 1096 bus_addr_t maddr; 1097 int error; 1098}; 1099 1100static void 1101ahci_dmainit(device_t dev) 1102{ 1103 struct ahci_channel *ch = device_get_softc(dev); 1104 struct ahci_dc_cb_args dcba; 1105 size_t rfsize; 1106 1107 if (ch->caps & AHCI_CAP_64BIT) 1108 ch->dma.max_address = BUS_SPACE_MAXADDR; 1109 else 1110 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1111 /* Command area. */ 1112 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1113 ch->dma.max_address, BUS_SPACE_MAXADDR, 1114 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1115 0, NULL, NULL, &ch->dma.work_tag)) 1116 goto error; 1117 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1118 &ch->dma.work_map)) 1119 goto error; 1120 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1121 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1122 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1123 goto error; 1124 } 1125 ch->dma.work_bus = dcba.maddr; 1126 /* FIS receive area. */ 1127 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1128 rfsize = 4096; 1129 else 1130 rfsize = 256; 1131 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1132 ch->dma.max_address, BUS_SPACE_MAXADDR, 1133 NULL, NULL, rfsize, 1, rfsize, 1134 0, NULL, NULL, &ch->dma.rfis_tag)) 1135 goto error; 1136 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1137 &ch->dma.rfis_map)) 1138 goto error; 1139 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1140 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1141 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1142 goto error; 1143 } 1144 ch->dma.rfis_bus = dcba.maddr; 1145 /* Data area. */ 1146 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1147 ch->dma.max_address, BUS_SPACE_MAXADDR, 1148 NULL, NULL, 1149 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1150 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1151 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1152 goto error; 1153 } 1154 return; 1155 1156error: 1157 device_printf(dev, "WARNING - DMA initialization failed\n"); 1158 ahci_dmafini(dev); 1159} 1160 1161static void 1162ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1163{ 1164 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1165 1166 if (!(dcba->error = error)) 1167 dcba->maddr = segs[0].ds_addr; 1168} 1169 1170static void 1171ahci_dmafini(device_t dev) 1172{ 1173 struct ahci_channel *ch = device_get_softc(dev); 1174 1175 if (ch->dma.data_tag) { 1176 bus_dma_tag_destroy(ch->dma.data_tag); 1177 ch->dma.data_tag = NULL; 1178 } 1179 if (ch->dma.rfis_bus) { 1180 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1181 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1182 ch->dma.rfis_bus = 0; 1183 ch->dma.rfis_map = NULL; 1184 ch->dma.rfis = NULL; 1185 } 1186 if (ch->dma.work_bus) { 1187 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1188 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1189 ch->dma.work_bus = 0; 1190 ch->dma.work_map = NULL; 1191 ch->dma.work = NULL; 1192 } 1193 if (ch->dma.work_tag) { 1194 bus_dma_tag_destroy(ch->dma.work_tag); 1195 ch->dma.work_tag = NULL; 1196 } 1197} 1198 1199static void 1200ahci_slotsalloc(device_t dev) 1201{ 1202 struct ahci_channel *ch = device_get_softc(dev); 1203 int i; 1204 1205 /* Alloc and setup command/dma slots */ 1206 bzero(ch->slot, sizeof(ch->slot)); 1207 for (i = 0; i < ch->numslots; i++) { 1208 struct ahci_slot *slot = &ch->slot[i]; 1209 1210 slot->dev = dev; 1211 slot->slot = i; 1212 slot->state = AHCI_SLOT_EMPTY; 1213 slot->ccb = NULL; 1214 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1215 1216 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1217 device_printf(ch->dev, "FAILURE - create data_map\n"); 1218 } 1219} 1220 1221static void 1222ahci_slotsfree(device_t dev) 1223{ 1224 struct ahci_channel *ch = device_get_softc(dev); 1225 int i; 1226 1227 /* Free all dma slots */ 1228 for (i = 0; i < ch->numslots; i++) { 1229 struct ahci_slot *slot = &ch->slot[i]; 1230 1231 callout_drain(&slot->timeout); 1232 if (slot->dma.data_map) { 1233 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1234 slot->dma.data_map = NULL; 1235 } 1236 } 1237} 1238 1239static void 1240ahci_phy_check_events(device_t dev, u_int32_t serr) 1241{ 1242 struct ahci_channel *ch = device_get_softc(dev); 1243 1244 if ((serr & ATA_SE_PHY_CHANGED) && (ch->pm_level == 0)) { 1245 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1246 union ccb *ccb; 1247 1248 if (bootverbose) { 1249 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1250 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1251 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 1252 device_printf(dev, "CONNECT requested\n"); 1253 } else 1254 device_printf(dev, "DISCONNECT requested\n"); 1255 } 1256 ahci_reset(dev); 1257 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1258 return; 1259 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1260 cam_sim_path(ch->sim), 1261 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1262 xpt_free_ccb(ccb); 1263 return; 1264 } 1265 xpt_rescan(ccb); 1266 } 1267} 1268 1269static void 1270ahci_notify_events(device_t dev, u_int32_t status) 1271{ 1272 struct ahci_channel *ch = device_get_softc(dev); 1273 struct cam_path *dpath; 1274 int i; 1275 1276 if (ch->caps & AHCI_CAP_SSNTF) 1277 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1278 if (bootverbose) 1279 device_printf(dev, "SNTF 0x%04x\n", status); 1280 for (i = 0; i < 16; i++) { 1281 if ((status & (1 << i)) == 0) 1282 continue; 1283 if (xpt_create_path(&dpath, NULL, 1284 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1285 xpt_async(AC_SCSI_AEN, dpath, NULL); 1286 xpt_free_path(dpath); 1287 } 1288 } 1289} 1290 1291static void 1292ahci_ch_intr_locked(void *data) 1293{ 1294 device_t dev = (device_t)data; 1295 struct ahci_channel *ch = device_get_softc(dev); 1296 1297 mtx_lock(&ch->mtx); 1298 ahci_ch_intr(data); 1299 mtx_unlock(&ch->mtx); 1300} 1301 1302static void 1303ahci_ch_pm(void *arg) 1304{ 1305 device_t dev = (device_t)arg; 1306 struct ahci_channel *ch = device_get_softc(dev); 1307 uint32_t work; 1308 1309 if (ch->numrslots != 0) 1310 return; 1311 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1312 if (ch->pm_level == 4) 1313 work |= AHCI_P_CMD_PARTIAL; 1314 else 1315 work |= AHCI_P_CMD_SLUMBER; 1316 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1317} 1318 1319static void 1320ahci_ch_intr(void *data) 1321{ 1322 device_t dev = (device_t)data; 1323 struct ahci_channel *ch = device_get_softc(dev); 1324 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1325 enum ahci_err_type et; 1326 int i, ccs, port; 1327 1328 /* Read and clear interrupt statuses. */ 1329 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1330 if (istatus == 0) 1331 return; 1332 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1333 /* Read command statuses. */ 1334 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1335 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1336 if (istatus & AHCI_P_IX_SDB) { 1337 if (ch->caps & AHCI_CAP_SSNTF) 1338 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1339 else if (ch->fbs_enabled) { 1340 u_int8_t *fis = ch->dma.rfis + 0x58; 1341 1342 for (i = 0; i < 16; i++) { 1343 if (fis[1] & 0x80) { 1344 fis[1] &= 0x7f; 1345 sntf |= 1 << i; 1346 } 1347 fis += 256; 1348 } 1349 } else { 1350 u_int8_t *fis = ch->dma.rfis + 0x58; 1351 1352 if (fis[1] & 0x80) 1353 sntf = (1 << (fis[1] & 0x0f)); 1354 } 1355 } 1356 /* Process PHY events */ 1357 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1358 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1359 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1360 if (serr) { 1361 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1362 ahci_phy_check_events(dev, serr); 1363 } 1364 } 1365 /* Process command errors */ 1366 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1367 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1368 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1369 >> AHCI_P_CMD_CCS_SHIFT; 1370//device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1371// __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1372// serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1373 port = -1; 1374 if (ch->fbs_enabled) { 1375 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1376 if (fbs & AHCI_P_FBS_SDE) { 1377 port = (fbs & AHCI_P_FBS_DWE) 1378 >> AHCI_P_FBS_DWE_SHIFT; 1379 } else { 1380 for (i = 0; i < 16; i++) { 1381 if (ch->numrslotspd[i] == 0) 1382 continue; 1383 if (port == -1) 1384 port = i; 1385 else if (port != i) { 1386 port = -2; 1387 break; 1388 } 1389 } 1390 } 1391 } 1392 err = ch->rslots & (cstatus | sstatus); 1393 } else { 1394 ccs = 0; 1395 err = 0; 1396 port = -1; 1397 } 1398 /* Complete all successfull commands. */ 1399 ok = ch->rslots & ~(cstatus | sstatus); 1400 for (i = 0; i < ch->numslots; i++) { 1401 if ((ok >> i) & 1) 1402 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1403 } 1404 /* On error, complete the rest of commands with error statuses. */ 1405 if (err) { 1406 if (ch->frozen) { 1407 union ccb *fccb = ch->frozen; 1408 ch->frozen = NULL; 1409 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1410 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1411 xpt_freeze_devq(fccb->ccb_h.path, 1); 1412 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1413 } 1414 xpt_done(fccb); 1415 } 1416 for (i = 0; i < ch->numslots; i++) { 1417 /* XXX: reqests in loading state. */ 1418 if (((err >> i) & 1) == 0) 1419 continue; 1420 if (port >= 0 && 1421 ch->slot[i].ccb->ccb_h.target_id != port) 1422 continue; 1423 if (istatus & AHCI_P_IX_TFE) { 1424 if (port != -2) { 1425 /* Task File Error */ 1426 if (ch->numtslotspd[ 1427 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1428 /* Untagged operation. */ 1429 if (i == ccs) 1430 et = AHCI_ERR_TFE; 1431 else 1432 et = AHCI_ERR_INNOCENT; 1433 } else { 1434 /* Tagged operation. */ 1435 et = AHCI_ERR_NCQ; 1436 } 1437 } else { 1438 et = AHCI_ERR_TFE; 1439 ch->fatalerr = 1; 1440 } 1441 } else if (istatus & AHCI_P_IX_IF) { 1442 if (ch->numtslots == 0 && i != ccs && port != -2) 1443 et = AHCI_ERR_INNOCENT; 1444 else 1445 et = AHCI_ERR_SATA; 1446 } else 1447 et = AHCI_ERR_INVALID; 1448 ahci_end_transaction(&ch->slot[i], et); 1449 } 1450 /* 1451 * We can't reinit port if there are some other 1452 * commands active, use resume to complete them. 1453 */ 1454 if (ch->rslots != 0) 1455 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1456 } 1457 /* Process NOTIFY events */ 1458 if (sntf) 1459 ahci_notify_events(dev, sntf); 1460} 1461 1462/* Must be called with channel locked. */ 1463static int 1464ahci_check_collision(device_t dev, union ccb *ccb) 1465{ 1466 struct ahci_channel *ch = device_get_softc(dev); 1467 int t = ccb->ccb_h.target_id; 1468 1469 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1470 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1471 /* Tagged command while we have no supported tag free. */ 1472 if (((~ch->oslots) & (0xffffffff >> (32 - 1473 ch->curr[t].tags))) == 0) 1474 return (1); 1475 /* If we have FBS */ 1476 if (ch->fbs_enabled) { 1477 /* Tagged command while untagged are active. */ 1478 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1479 return (1); 1480 } else { 1481 /* Tagged command while untagged are active. */ 1482 if (ch->numrslots != 0 && ch->numtslots == 0) 1483 return (1); 1484 /* Tagged command while tagged to other target is active. */ 1485 if (ch->numtslots != 0 && 1486 ch->taggedtarget != ccb->ccb_h.target_id) 1487 return (1); 1488 } 1489 } else { 1490 /* If we have FBS */ 1491 if (ch->fbs_enabled) { 1492 /* Untagged command while tagged are active. */ 1493 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1494 return (1); 1495 } else { 1496 /* Untagged command while tagged are active. */ 1497 if (ch->numrslots != 0 && ch->numtslots != 0) 1498 return (1); 1499 } 1500 } 1501 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1502 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1503 /* Atomic command while anything active. */ 1504 if (ch->numrslots != 0) 1505 return (1); 1506 } 1507 /* We have some atomic command running. */ 1508 if (ch->aslots != 0) 1509 return (1); 1510 return (0); 1511} 1512 1513/* Must be called with channel locked. */ 1514static void 1515ahci_begin_transaction(device_t dev, union ccb *ccb) 1516{ 1517 struct ahci_channel *ch = device_get_softc(dev); 1518 struct ahci_slot *slot; 1519 int tag, tags; 1520 1521 /* Choose empty slot. */ 1522 tags = ch->numslots; 1523 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1524 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1525 tags = ch->curr[ccb->ccb_h.target_id].tags; 1526 tag = ch->lastslot; 1527 while (1) { 1528 if (tag >= tags) 1529 tag = 0; 1530 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1531 break; 1532 tag++; 1533 }; 1534 ch->lastslot = tag; 1535 /* Occupy chosen slot. */ 1536 slot = &ch->slot[tag]; 1537 slot->ccb = ccb; 1538 /* Stop PM timer. */ 1539 if (ch->numrslots == 0 && ch->pm_level > 3) 1540 callout_stop(&ch->pm_timer); 1541 /* Update channel stats. */ 1542 ch->oslots |= (1 << slot->slot); 1543 ch->numrslots++; 1544 ch->numrslotspd[ccb->ccb_h.target_id]++; 1545 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1546 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1547 ch->numtslots++; 1548 ch->numtslotspd[ccb->ccb_h.target_id]++; 1549 ch->taggedtarget = ccb->ccb_h.target_id; 1550 } 1551 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1552 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1553 ch->aslots |= (1 << slot->slot); 1554 slot->dma.nsegs = 0; 1555 /* If request moves data, setup and load SG list */ 1556 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1557 void *buf; 1558 bus_size_t size; 1559 1560 slot->state = AHCI_SLOT_LOADING; 1561 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1562 buf = ccb->ataio.data_ptr; 1563 size = ccb->ataio.dxfer_len; 1564 } else { 1565 buf = ccb->csio.data_ptr; 1566 size = ccb->csio.dxfer_len; 1567 } 1568 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1569 buf, size, ahci_dmasetprd, slot, 0); 1570 } else 1571 ahci_execute_transaction(slot); 1572} 1573 1574/* Locked by busdma engine. */ 1575static void 1576ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1577{ 1578 struct ahci_slot *slot = arg; 1579 struct ahci_channel *ch = device_get_softc(slot->dev); 1580 struct ahci_cmd_tab *ctp; 1581 struct ahci_dma_prd *prd; 1582 int i; 1583 1584 if (error) { 1585 device_printf(slot->dev, "DMA load error\n"); 1586 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1587 return; 1588 } 1589 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1590 /* Get a piece of the workspace for this request */ 1591 ctp = (struct ahci_cmd_tab *) 1592 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1593 /* Fill S/G table */ 1594 prd = &ctp->prd_tab[0]; 1595 for (i = 0; i < nsegs; i++) { 1596 prd[i].dba = htole64(segs[i].ds_addr); 1597 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1598 } 1599 slot->dma.nsegs = nsegs; 1600 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1601 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1602 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1603 ahci_execute_transaction(slot); 1604} 1605 1606/* Must be called with channel locked. */ 1607static void 1608ahci_execute_transaction(struct ahci_slot *slot) 1609{ 1610 device_t dev = slot->dev; 1611 struct ahci_channel *ch = device_get_softc(dev); 1612 struct ahci_cmd_tab *ctp; 1613 struct ahci_cmd_list *clp; 1614 union ccb *ccb = slot->ccb; 1615 int port = ccb->ccb_h.target_id & 0x0f; 1616 int fis_size, i; 1617 uint8_t *fis = ch->dma.rfis + 0x40; 1618 uint8_t val; 1619 1620 /* Get a piece of the workspace for this request */ 1621 ctp = (struct ahci_cmd_tab *) 1622 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1623 /* Setup the FIS for this request */ 1624 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1625 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1626 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1627 return; 1628 } 1629 /* Setup the command list entry */ 1630 clp = (struct ahci_cmd_list *) 1631 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1632 clp->cmd_flags = htole16( 1633 (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1634 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1635 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1636 (fis_size / sizeof(u_int32_t)) | 1637 (port << 12)); 1638 clp->prd_length = htole16(slot->dma.nsegs); 1639 /* Special handling for Soft Reset command. */ 1640 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1641 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1642 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1643 /* Kick controller into sane state */ 1644 ahci_stop(dev); 1645 ahci_clo(dev); 1646 ahci_start(dev, 0); 1647 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1648 } else { 1649 /* Prepare FIS receive area for check. */ 1650 for (i = 0; i < 20; i++) 1651 fis[i] = 0xff; 1652 } 1653 } 1654 clp->bytecount = 0; 1655 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1656 (AHCI_CT_SIZE * slot->slot)); 1657 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1658 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1659 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1660 BUS_DMASYNC_PREREAD); 1661 /* Set ACTIVE bit for NCQ commands. */ 1662 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1663 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1664 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1665 } 1666 /* If FBS is enabled, set PMP port. */ 1667 if (ch->fbs_enabled) { 1668 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1669 (port << AHCI_P_FBS_DEV_SHIFT)); 1670 } 1671 /* Issue command to the controller. */ 1672 slot->state = AHCI_SLOT_RUNNING; 1673 ch->rslots |= (1 << slot->slot); 1674 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1675 /* Device reset commands doesn't interrupt. Poll them. */ 1676 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1677 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || 1678 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL))) { 1679 int count, timeout = ccb->ccb_h.timeout; 1680 enum ahci_err_type et = AHCI_ERR_NONE; 1681 1682 for (count = 0; count < timeout; count++) { 1683 DELAY(1000); 1684 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1685 break; 1686 if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) { 1687 device_printf(ch->dev, 1688 "Poll error on slot %d, TFD: %04x\n", 1689 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1690 et = AHCI_ERR_TFE; 1691 break; 1692 } 1693 /* Workaround for ATI SB600/SB700 chipsets. */ 1694 if (ccb->ccb_h.target_id == 15 && 1695 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1696 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1697 et = AHCI_ERR_TIMEOUT; 1698 break; 1699 } 1700 } 1701 if (timeout && (count >= timeout)) { 1702 device_printf(ch->dev, 1703 "Poll timeout on slot %d\n", slot->slot); 1704 device_printf(dev, "is %08x cs %08x ss %08x " 1705 "rs %08x tfd %02x serr %08x\n", 1706 ATA_INL(ch->r_mem, AHCI_P_IS), 1707 ATA_INL(ch->r_mem, AHCI_P_CI), 1708 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1709 ATA_INL(ch->r_mem, AHCI_P_TFD), 1710 ATA_INL(ch->r_mem, AHCI_P_SERR)); 1711 et = AHCI_ERR_TIMEOUT; 1712 } 1713 /* Marvell controllers do not wait for readyness. */ 1714 if ((ch->quirks & AHCI_Q_NOBSYRES) && 1715 (ccb->ccb_h.func_code == XPT_ATA_IO) && 1716 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1717 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1718 while ((val = fis[2]) & (ATA_S_BUSY | ATA_S_DRQ)) { 1719 DELAY(1000); 1720 if (count++ >= timeout) { 1721 device_printf(dev, "device is not " 1722 "ready after soft-reset: " 1723 "tfd = %08x\n", val); 1724 et = AHCI_ERR_TIMEOUT; 1725 break; 1726 } 1727 } 1728 } 1729 ahci_end_transaction(slot, et); 1730 /* Kick controller into sane state and enable FBS. */ 1731 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1732 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1733 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1734 ahci_stop(ch->dev); 1735 ahci_start(ch->dev, 1); 1736 } 1737 return; 1738 } 1739 /* Start command execution timeout */ 1740 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1741 (timeout_t*)ahci_timeout, slot); 1742 return; 1743} 1744 1745/* Must be called with channel locked. */ 1746static void 1747ahci_process_timeout(device_t dev) 1748{ 1749 struct ahci_channel *ch = device_get_softc(dev); 1750 int i; 1751 1752 mtx_assert(&ch->mtx, MA_OWNED); 1753 /* Handle the rest of commands. */ 1754 for (i = 0; i < ch->numslots; i++) { 1755 /* Do we have a running request on slot? */ 1756 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1757 continue; 1758 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1759 } 1760} 1761 1762/* Must be called with channel locked. */ 1763static void 1764ahci_rearm_timeout(device_t dev) 1765{ 1766 struct ahci_channel *ch = device_get_softc(dev); 1767 int i; 1768 1769 mtx_assert(&ch->mtx, MA_OWNED); 1770 for (i = 0; i < ch->numslots; i++) { 1771 struct ahci_slot *slot = &ch->slot[i]; 1772 1773 /* Do we have a running request on slot? */ 1774 if (slot->state < AHCI_SLOT_RUNNING) 1775 continue; 1776 if ((ch->toslots & (1 << i)) == 0) 1777 continue; 1778 callout_reset(&slot->timeout, 1779 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1780 (timeout_t*)ahci_timeout, slot); 1781 } 1782} 1783 1784/* Locked by callout mechanism. */ 1785static void 1786ahci_timeout(struct ahci_slot *slot) 1787{ 1788 device_t dev = slot->dev; 1789 struct ahci_channel *ch = device_get_softc(dev); 1790 uint32_t sstatus; 1791 int ccs; 1792 int i; 1793 1794 /* Check for stale timeout. */ 1795 if (slot->state < AHCI_SLOT_RUNNING) 1796 return; 1797 1798 /* Check if slot was not being executed last time we checked. */ 1799 if (slot->state < AHCI_SLOT_EXECUTING) { 1800 /* Check if slot started executing. */ 1801 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1802 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1803 >> AHCI_P_CMD_CCS_SHIFT; 1804 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1805 ch->fbs_enabled) 1806 slot->state = AHCI_SLOT_EXECUTING; 1807 1808 callout_reset(&slot->timeout, 1809 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1810 (timeout_t*)ahci_timeout, slot); 1811 return; 1812 } 1813 1814 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1815 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x\n", 1816 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1817 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1818 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR)); 1819 1820 /* Handle frozen command. */ 1821 if (ch->frozen) { 1822 union ccb *fccb = ch->frozen; 1823 ch->frozen = NULL; 1824 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1825 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1826 xpt_freeze_devq(fccb->ccb_h.path, 1); 1827 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1828 } 1829 xpt_done(fccb); 1830 } 1831 if (!ch->fbs_enabled) { 1832 /* Without FBS we know real timeout source. */ 1833 ch->fatalerr = 1; 1834 /* Handle command with timeout. */ 1835 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1836 /* Handle the rest of commands. */ 1837 for (i = 0; i < ch->numslots; i++) { 1838 /* Do we have a running request on slot? */ 1839 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1840 continue; 1841 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1842 } 1843 } else { 1844 /* With FBS we wait for other commands timeout and pray. */ 1845 if (ch->toslots == 0) 1846 xpt_freeze_simq(ch->sim, 1); 1847 ch->toslots |= (1 << slot->slot); 1848 if ((ch->rslots & ~ch->toslots) == 0) 1849 ahci_process_timeout(dev); 1850 else 1851 device_printf(dev, " ... waiting for slots %08x\n", 1852 ch->rslots & ~ch->toslots); 1853 } 1854} 1855 1856/* Must be called with channel locked. */ 1857static void 1858ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1859{ 1860 device_t dev = slot->dev; 1861 struct ahci_channel *ch = device_get_softc(dev); 1862 union ccb *ccb = slot->ccb; 1863 struct ahci_cmd_list *clp; 1864 int lastto; 1865 1866 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1867 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1868 clp = (struct ahci_cmd_list *) 1869 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1870 /* Read result registers to the result struct 1871 * May be incorrect if several commands finished same time, 1872 * so read only when sure or have to. 1873 */ 1874 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1875 struct ata_res *res = &ccb->ataio.res; 1876 1877 if ((et == AHCI_ERR_TFE) || 1878 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1879 u_int8_t *fis = ch->dma.rfis + 0x40; 1880 1881 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1882 BUS_DMASYNC_POSTREAD); 1883 if (ch->fbs_enabled) { 1884 fis += ccb->ccb_h.target_id * 256; 1885 res->status = fis[2]; 1886 res->error = fis[3]; 1887 } else { 1888 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 1889 1890 res->status = tfd; 1891 res->error = tfd >> 8; 1892 } 1893 res->lba_low = fis[4]; 1894 res->lba_mid = fis[5]; 1895 res->lba_high = fis[6]; 1896 res->device = fis[7]; 1897 res->lba_low_exp = fis[8]; 1898 res->lba_mid_exp = fis[9]; 1899 res->lba_high_exp = fis[10]; 1900 res->sector_count = fis[12]; 1901 res->sector_count_exp = fis[13]; 1902 } else 1903 bzero(res, sizeof(*res)); 1904 if ((ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) == 0 && 1905 (ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1906 ccb->ataio.resid = 1907 ccb->ataio.dxfer_len - le32toh(clp->bytecount); 1908 } 1909 } else { 1910 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1911 ccb->csio.resid = 1912 ccb->csio.dxfer_len - le32toh(clp->bytecount); 1913 } 1914 } 1915 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1916 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1917 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1918 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1919 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1920 } 1921 if (et != AHCI_ERR_NONE) 1922 ch->eslots |= (1 << slot->slot); 1923 /* In case of error, freeze device for proper recovery. */ 1924 if ((et != AHCI_ERR_NONE) && (!ch->readlog) && 1925 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1926 xpt_freeze_devq(ccb->ccb_h.path, 1); 1927 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1928 } 1929 /* Set proper result status. */ 1930 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1931 switch (et) { 1932 case AHCI_ERR_NONE: 1933 ccb->ccb_h.status |= CAM_REQ_CMP; 1934 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1935 ccb->csio.scsi_status = SCSI_STATUS_OK; 1936 break; 1937 case AHCI_ERR_INVALID: 1938 ch->fatalerr = 1; 1939 ccb->ccb_h.status |= CAM_REQ_INVALID; 1940 break; 1941 case AHCI_ERR_INNOCENT: 1942 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1943 break; 1944 case AHCI_ERR_TFE: 1945 case AHCI_ERR_NCQ: 1946 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1947 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1948 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1949 } else { 1950 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1951 } 1952 break; 1953 case AHCI_ERR_SATA: 1954 ch->fatalerr = 1; 1955 if (!ch->readlog) { 1956 xpt_freeze_simq(ch->sim, 1); 1957 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1958 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1959 } 1960 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1961 break; 1962 case AHCI_ERR_TIMEOUT: 1963 if (!ch->readlog) { 1964 xpt_freeze_simq(ch->sim, 1); 1965 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1966 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1967 } 1968 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1969 break; 1970 default: 1971 ch->fatalerr = 1; 1972 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1973 } 1974 /* Free slot. */ 1975 ch->oslots &= ~(1 << slot->slot); 1976 ch->rslots &= ~(1 << slot->slot); 1977 ch->aslots &= ~(1 << slot->slot); 1978 slot->state = AHCI_SLOT_EMPTY; 1979 slot->ccb = NULL; 1980 /* Update channel stats. */ 1981 ch->numrslots--; 1982 ch->numrslotspd[ccb->ccb_h.target_id]--; 1983 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1984 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1985 ch->numtslots--; 1986 ch->numtslotspd[ccb->ccb_h.target_id]--; 1987 } 1988 /* Cancel timeout state if request completed normally. */ 1989 if (et != AHCI_ERR_TIMEOUT) { 1990 lastto = (ch->toslots == (1 << slot->slot)); 1991 ch->toslots &= ~(1 << slot->slot); 1992 if (lastto) 1993 xpt_release_simq(ch->sim, TRUE); 1994 } 1995 /* If it was first request of reset sequence and there is no error, 1996 * proceed to second request. */ 1997 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1998 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1999 (ccb->ataio.cmd.control & ATA_A_RESET) && 2000 et == AHCI_ERR_NONE) { 2001 ccb->ataio.cmd.control &= ~ATA_A_RESET; 2002 ahci_begin_transaction(dev, ccb); 2003 return; 2004 } 2005 /* If it was our READ LOG command - process it. */ 2006 if (ch->readlog) { 2007 ahci_process_read_log(dev, ccb); 2008 /* If it was NCQ command error, put result on hold. */ 2009 } else if (et == AHCI_ERR_NCQ) { 2010 ch->hold[slot->slot] = ccb; 2011 ch->numhslots++; 2012 } else 2013 xpt_done(ccb); 2014 /* Unfreeze frozen command. */ 2015 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 2016 union ccb *fccb = ch->frozen; 2017 ch->frozen = NULL; 2018 ahci_begin_transaction(dev, fccb); 2019 xpt_release_simq(ch->sim, TRUE); 2020 } 2021 /* If we have no other active commands, ... */ 2022 if (ch->rslots == 0) { 2023 /* if there was fatal error - reset port. */ 2024 if (ch->toslots != 0 || ch->fatalerr) { 2025 ahci_reset(dev); 2026 } else { 2027 /* if we have slots in error, we can reinit port. */ 2028 if (ch->eslots != 0) { 2029 ahci_stop(dev); 2030 ahci_start(dev, 1); 2031 } 2032 /* if there commands on hold, we can do READ LOG. */ 2033 if (!ch->readlog && ch->numhslots) 2034 ahci_issue_read_log(dev); 2035 } 2036 /* If all the rest of commands are in timeout - give them chance. */ 2037 } else if ((ch->rslots & ~ch->toslots) == 0 && 2038 et != AHCI_ERR_TIMEOUT) 2039 ahci_rearm_timeout(dev); 2040 /* Start PM timer. */ 2041 if (ch->numrslots == 0 && ch->pm_level > 3 && 2042 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2043 callout_schedule(&ch->pm_timer, 2044 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2045 } 2046} 2047 2048static void 2049ahci_issue_read_log(device_t dev) 2050{ 2051 struct ahci_channel *ch = device_get_softc(dev); 2052 union ccb *ccb; 2053 struct ccb_ataio *ataio; 2054 int i; 2055 2056 ch->readlog = 1; 2057 /* Find some holden command. */ 2058 for (i = 0; i < ch->numslots; i++) { 2059 if (ch->hold[i]) 2060 break; 2061 } 2062 ccb = xpt_alloc_ccb_nowait(); 2063 if (ccb == NULL) { 2064 device_printf(dev, "Unable allocate READ LOG command"); 2065 return; /* XXX */ 2066 } 2067 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2068 ccb->ccb_h.func_code = XPT_ATA_IO; 2069 ccb->ccb_h.flags = CAM_DIR_IN; 2070 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2071 ataio = &ccb->ataio; 2072 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2073 if (ataio->data_ptr == NULL) { 2074 xpt_free_ccb(ccb); 2075 device_printf(dev, "Unable allocate memory for READ LOG command"); 2076 return; /* XXX */ 2077 } 2078 ataio->dxfer_len = 512; 2079 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2080 ataio->cmd.flags = CAM_ATAIO_48BIT; 2081 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2082 ataio->cmd.sector_count = 1; 2083 ataio->cmd.sector_count_exp = 0; 2084 ataio->cmd.lba_low = 0x10; 2085 ataio->cmd.lba_mid = 0; 2086 ataio->cmd.lba_mid_exp = 0; 2087 /* Freeze SIM while doing READ LOG EXT. */ 2088 xpt_freeze_simq(ch->sim, 1); 2089 ahci_begin_transaction(dev, ccb); 2090} 2091 2092static void 2093ahci_process_read_log(device_t dev, union ccb *ccb) 2094{ 2095 struct ahci_channel *ch = device_get_softc(dev); 2096 uint8_t *data; 2097 struct ata_res *res; 2098 int i; 2099 2100 ch->readlog = 0; 2101 2102 data = ccb->ataio.data_ptr; 2103 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2104 (data[0] & 0x80) == 0) { 2105 for (i = 0; i < ch->numslots; i++) { 2106 if (!ch->hold[i]) 2107 continue; 2108 if ((data[0] & 0x1F) == i) { 2109 res = &ch->hold[i]->ataio.res; 2110 res->status = data[2]; 2111 res->error = data[3]; 2112 res->lba_low = data[4]; 2113 res->lba_mid = data[5]; 2114 res->lba_high = data[6]; 2115 res->device = data[7]; 2116 res->lba_low_exp = data[8]; 2117 res->lba_mid_exp = data[9]; 2118 res->lba_high_exp = data[10]; 2119 res->sector_count = data[12]; 2120 res->sector_count_exp = data[13]; 2121 } else { 2122 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2123 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2124 } 2125 xpt_done(ch->hold[i]); 2126 ch->hold[i] = NULL; 2127 ch->numhslots--; 2128 } 2129 } else { 2130 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2131 device_printf(dev, "Error while READ LOG EXT\n"); 2132 else if ((data[0] & 0x80) == 0) { 2133 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2134 } 2135 for (i = 0; i < ch->numslots; i++) { 2136 if (!ch->hold[i]) 2137 continue; 2138 xpt_done(ch->hold[i]); 2139 ch->hold[i] = NULL; 2140 ch->numhslots--; 2141 } 2142 } 2143 free(ccb->ataio.data_ptr, M_AHCI); 2144 xpt_free_ccb(ccb); 2145 xpt_release_simq(ch->sim, TRUE); 2146} 2147 2148static void 2149ahci_start(device_t dev, int fbs) 2150{ 2151 struct ahci_channel *ch = device_get_softc(dev); 2152 u_int32_t cmd; 2153 2154 /* Clear SATA error register */ 2155 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2156 /* Clear any interrupts pending on this channel */ 2157 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2158 /* Configure FIS-based switching if supported. */ 2159 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2160 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2161 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2162 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2163 } 2164 /* Start operations on this channel */ 2165 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2166 cmd &= ~AHCI_P_CMD_PMA; 2167 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2168 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2169} 2170 2171static void 2172ahci_stop(device_t dev) 2173{ 2174 struct ahci_channel *ch = device_get_softc(dev); 2175 u_int32_t cmd; 2176 int timeout; 2177 2178 /* Kill all activity on this channel */ 2179 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2180 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2181 /* Wait for activity stop. */ 2182 timeout = 0; 2183 do { 2184 DELAY(1000); 2185 if (timeout++ > 1000) { 2186 device_printf(dev, "stopping AHCI engine failed\n"); 2187 break; 2188 } 2189 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2190 ch->eslots = 0; 2191} 2192 2193static void 2194ahci_clo(device_t dev) 2195{ 2196 struct ahci_channel *ch = device_get_softc(dev); 2197 u_int32_t cmd; 2198 int timeout; 2199 2200 /* Issue Command List Override if supported */ 2201 if (ch->caps & AHCI_CAP_SCLO) { 2202 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2203 cmd |= AHCI_P_CMD_CLO; 2204 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2205 timeout = 0; 2206 do { 2207 DELAY(1000); 2208 if (timeout++ > 1000) { 2209 device_printf(dev, "executing CLO failed\n"); 2210 break; 2211 } 2212 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2213 } 2214} 2215 2216static void 2217ahci_stop_fr(device_t dev) 2218{ 2219 struct ahci_channel *ch = device_get_softc(dev); 2220 u_int32_t cmd; 2221 int timeout; 2222 2223 /* Kill all FIS reception on this channel */ 2224 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2225 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2226 /* Wait for FIS reception stop. */ 2227 timeout = 0; 2228 do { 2229 DELAY(1000); 2230 if (timeout++ > 1000) { 2231 device_printf(dev, "stopping AHCI FR engine failed\n"); 2232 break; 2233 } 2234 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2235} 2236 2237static void 2238ahci_start_fr(device_t dev) 2239{ 2240 struct ahci_channel *ch = device_get_softc(dev); 2241 u_int32_t cmd; 2242 2243 /* Start FIS reception on this channel */ 2244 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2245 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2246} 2247 2248static int 2249ahci_wait_ready(device_t dev, int t) 2250{ 2251 struct ahci_channel *ch = device_get_softc(dev); 2252 int timeout = 0; 2253 uint32_t val; 2254 2255 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2256 (ATA_S_BUSY | ATA_S_DRQ)) { 2257 DELAY(1000); 2258 if (timeout++ > t) { 2259 device_printf(dev, "device is not ready (timeout %dms) " 2260 "tfd = %08x\n", t, val); 2261 return (EBUSY); 2262 } 2263 } 2264 if (bootverbose) 2265 device_printf(dev, "ready wait time=%dms\n", timeout); 2266 return (0); 2267} 2268 2269static void 2270ahci_reset(device_t dev) 2271{ 2272 struct ahci_channel *ch = device_get_softc(dev); 2273 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2274 int i; 2275 2276 xpt_freeze_simq(ch->sim, 1); 2277 if (bootverbose) 2278 device_printf(dev, "AHCI reset...\n"); 2279 /* Requeue freezed command. */ 2280 if (ch->frozen) { 2281 union ccb *fccb = ch->frozen; 2282 ch->frozen = NULL; 2283 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2284 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2285 xpt_freeze_devq(fccb->ccb_h.path, 1); 2286 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2287 } 2288 xpt_done(fccb); 2289 } 2290 /* Kill the engine and requeue all running commands. */ 2291 ahci_stop(dev); 2292 for (i = 0; i < ch->numslots; i++) { 2293 /* Do we have a running request on slot? */ 2294 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2295 continue; 2296 /* XXX; Commands in loading state. */ 2297 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2298 } 2299 for (i = 0; i < ch->numslots; i++) { 2300 if (!ch->hold[i]) 2301 continue; 2302 xpt_done(ch->hold[i]); 2303 ch->hold[i] = NULL; 2304 ch->numhslots--; 2305 } 2306 if (ch->toslots != 0) 2307 xpt_release_simq(ch->sim, TRUE); 2308 ch->eslots = 0; 2309 ch->toslots = 0; 2310 ch->fatalerr = 0; 2311 /* Tell the XPT about the event */ 2312 xpt_async(AC_BUS_RESET, ch->path, NULL); 2313 /* Disable port interrupts */ 2314 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2315 /* Reset and reconnect PHY, */ 2316 if (!ahci_sata_phy_reset(dev)) { 2317 if (bootverbose) 2318 device_printf(dev, 2319 "AHCI reset done: phy reset found no device\n"); 2320 ch->devices = 0; 2321 /* Enable wanted port interrupts */ 2322 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2323 (AHCI_P_IX_CPD | AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2324 xpt_release_simq(ch->sim, TRUE); 2325 return; 2326 } 2327 /* Wait for clearing busy status. */ 2328 if (ahci_wait_ready(dev, 15000)) 2329 ahci_clo(dev); 2330 ahci_start(dev, 1); 2331 ch->devices = 1; 2332 /* Enable wanted port interrupts */ 2333 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2334 (AHCI_P_IX_CPD | AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2335 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2336 ((ch->pm_level == 0) ? AHCI_P_IX_PRC | AHCI_P_IX_PC : 0) | 2337 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2338 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2339 if (bootverbose) 2340 device_printf(dev, "AHCI reset done: device found\n"); 2341 xpt_release_simq(ch->sim, TRUE); 2342} 2343 2344static int 2345ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2346{ 2347 struct ahci_channel *ch = device_get_softc(dev); 2348 u_int8_t *fis = &ctp->cfis[0]; 2349 2350 bzero(ctp->cfis, 64); 2351 fis[0] = 0x27; /* host to device */ 2352 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2353 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2354 fis[1] |= 0x80; 2355 fis[2] = ATA_PACKET_CMD; 2356 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2357 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2358 fis[3] = ATA_F_DMA; 2359 else { 2360 fis[5] = ccb->csio.dxfer_len; 2361 fis[6] = ccb->csio.dxfer_len >> 8; 2362 } 2363 fis[7] = ATA_D_LBA; 2364 fis[15] = ATA_A_4BIT; 2365 bzero(ctp->acmd, 32); 2366 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2367 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2368 ctp->acmd, ccb->csio.cdb_len); 2369 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2370 fis[1] |= 0x80; 2371 fis[2] = ccb->ataio.cmd.command; 2372 fis[3] = ccb->ataio.cmd.features; 2373 fis[4] = ccb->ataio.cmd.lba_low; 2374 fis[5] = ccb->ataio.cmd.lba_mid; 2375 fis[6] = ccb->ataio.cmd.lba_high; 2376 fis[7] = ccb->ataio.cmd.device; 2377 fis[8] = ccb->ataio.cmd.lba_low_exp; 2378 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2379 fis[10] = ccb->ataio.cmd.lba_high_exp; 2380 fis[11] = ccb->ataio.cmd.features_exp; 2381 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2382 fis[12] = tag << 3; 2383 fis[13] = 0; 2384 } else { 2385 fis[12] = ccb->ataio.cmd.sector_count; 2386 fis[13] = ccb->ataio.cmd.sector_count_exp; 2387 } 2388 fis[15] = ATA_A_4BIT; 2389 } else { 2390 fis[15] = ccb->ataio.cmd.control; 2391 } 2392 return (20); 2393} 2394 2395static int 2396ahci_sata_connect(struct ahci_channel *ch) 2397{ 2398 u_int32_t status; 2399 int timeout; 2400 2401 /* Wait up to 100ms for "connect well" */ 2402 for (timeout = 0; timeout < 100 ; timeout++) { 2403 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2404 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2405 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2406 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2407 break; 2408 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2409 if (bootverbose) { 2410 device_printf(ch->dev, "SATA offline status=%08x\n", 2411 status); 2412 } 2413 return (0); 2414 } 2415 DELAY(1000); 2416 } 2417 if (timeout >= 100) { 2418 if (bootverbose) { 2419 device_printf(ch->dev, "SATA connect timeout status=%08x\n", 2420 status); 2421 } 2422 return (0); 2423 } 2424 if (bootverbose) { 2425 device_printf(ch->dev, "SATA connect time=%dms status=%08x\n", 2426 timeout, status); 2427 } 2428 /* Clear SATA error register */ 2429 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2430 return (1); 2431} 2432 2433static int 2434ahci_sata_phy_reset(device_t dev) 2435{ 2436 struct ahci_channel *ch = device_get_softc(dev); 2437 int sata_rev; 2438 uint32_t val; 2439 2440 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2441 if (sata_rev == 1) 2442 val = ATA_SC_SPD_SPEED_GEN1; 2443 else if (sata_rev == 2) 2444 val = ATA_SC_SPD_SPEED_GEN2; 2445 else if (sata_rev == 3) 2446 val = ATA_SC_SPD_SPEED_GEN3; 2447 else 2448 val = 0; 2449 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2450 ATA_SC_DET_RESET | val | 2451 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2452 DELAY(5000); 2453 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2454 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2455 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2456 DELAY(5000); 2457 if (!ahci_sata_connect(ch)) { 2458 if (ch->pm_level > 0) 2459 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2460 return (0); 2461 } 2462 return (1); 2463} 2464 2465static int 2466ahci_check_ids(device_t dev, union ccb *ccb) 2467{ 2468 struct ahci_channel *ch = device_get_softc(dev); 2469 2470 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2471 ccb->ccb_h.status = CAM_TID_INVALID; 2472 xpt_done(ccb); 2473 return (-1); 2474 } 2475 if (ccb->ccb_h.target_lun != 0) { 2476 ccb->ccb_h.status = CAM_LUN_INVALID; 2477 xpt_done(ccb); 2478 return (-1); 2479 } 2480 return (0); 2481} 2482 2483static void 2484ahciaction(struct cam_sim *sim, union ccb *ccb) 2485{ 2486 device_t dev, parent; 2487 struct ahci_channel *ch; 2488 2489 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2490 ccb->ccb_h.func_code)); 2491 2492 ch = (struct ahci_channel *)cam_sim_softc(sim); 2493 dev = ch->dev; 2494 switch (ccb->ccb_h.func_code) { 2495 /* Common cases first */ 2496 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2497 case XPT_SCSI_IO: 2498 if (ahci_check_ids(dev, ccb)) 2499 return; 2500 if (ch->devices == 0 || 2501 (ch->pm_present == 0 && 2502 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2503 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2504 break; 2505 } 2506 /* Check for command collision. */ 2507 if (ahci_check_collision(dev, ccb)) { 2508 /* Freeze command. */ 2509 ch->frozen = ccb; 2510 /* We have only one frozen slot, so freeze simq also. */ 2511 xpt_freeze_simq(ch->sim, 1); 2512 return; 2513 } 2514 ahci_begin_transaction(dev, ccb); 2515 return; 2516 case XPT_EN_LUN: /* Enable LUN as a target */ 2517 case XPT_TARGET_IO: /* Execute target I/O request */ 2518 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2519 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2520 case XPT_ABORT: /* Abort the specified CCB */ 2521 /* XXX Implement */ 2522 ccb->ccb_h.status = CAM_REQ_INVALID; 2523 break; 2524 case XPT_SET_TRAN_SETTINGS: 2525 { 2526 struct ccb_trans_settings *cts = &ccb->cts; 2527 struct ahci_device *d; 2528 2529 if (ahci_check_ids(dev, ccb)) 2530 return; 2531 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2532 d = &ch->curr[ccb->ccb_h.target_id]; 2533 else 2534 d = &ch->user[ccb->ccb_h.target_id]; 2535 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2536 d->revision = cts->xport_specific.sata.revision; 2537 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2538 d->mode = cts->xport_specific.sata.mode; 2539 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2540 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2541 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2542 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2543 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2544 ch->pm_present = cts->xport_specific.sata.pm_present; 2545 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2546 d->atapi = cts->xport_specific.sata.atapi; 2547 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2548 d->caps = cts->xport_specific.sata.caps; 2549 ccb->ccb_h.status = CAM_REQ_CMP; 2550 break; 2551 } 2552 case XPT_GET_TRAN_SETTINGS: 2553 /* Get default/user set transfer settings for the target */ 2554 { 2555 struct ccb_trans_settings *cts = &ccb->cts; 2556 struct ahci_device *d; 2557 uint32_t status; 2558 2559 if (ahci_check_ids(dev, ccb)) 2560 return; 2561 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2562 d = &ch->curr[ccb->ccb_h.target_id]; 2563 else 2564 d = &ch->user[ccb->ccb_h.target_id]; 2565 cts->protocol = PROTO_ATA; 2566 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2567 cts->transport = XPORT_SATA; 2568 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2569 cts->proto_specific.valid = 0; 2570 cts->xport_specific.sata.valid = 0; 2571 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2572 (ccb->ccb_h.target_id == 15 || 2573 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2574 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2575 if (status & 0x0f0) { 2576 cts->xport_specific.sata.revision = 2577 (status & 0x0f0) >> 4; 2578 cts->xport_specific.sata.valid |= 2579 CTS_SATA_VALID_REVISION; 2580 } 2581 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2582 if (ch->pm_level) { 2583 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2584 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2585 if (ch->caps2 & AHCI_CAP2_APST) 2586 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2587 } 2588 if ((ch->caps & AHCI_CAP_SNCQ) && 2589 (ch->quirks & AHCI_Q_NOAA) == 0) 2590 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2591 cts->xport_specific.sata.caps &= 2592 ch->user[ccb->ccb_h.target_id].caps; 2593 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2594 } else { 2595 cts->xport_specific.sata.revision = d->revision; 2596 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2597 cts->xport_specific.sata.caps = d->caps; 2598 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2599 } 2600 cts->xport_specific.sata.mode = d->mode; 2601 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2602 cts->xport_specific.sata.bytecount = d->bytecount; 2603 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2604 cts->xport_specific.sata.pm_present = ch->pm_present; 2605 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2606 cts->xport_specific.sata.tags = d->tags; 2607 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2608 cts->xport_specific.sata.atapi = d->atapi; 2609 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2610 ccb->ccb_h.status = CAM_REQ_CMP; 2611 break; 2612 } 2613 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2614 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2615 ahci_reset(dev); 2616 ccb->ccb_h.status = CAM_REQ_CMP; 2617 break; 2618 case XPT_TERM_IO: /* Terminate the I/O process */ 2619 /* XXX Implement */ 2620 ccb->ccb_h.status = CAM_REQ_INVALID; 2621 break; 2622 case XPT_PATH_INQ: /* Path routing inquiry */ 2623 { 2624 struct ccb_pathinq *cpi = &ccb->cpi; 2625 2626 parent = device_get_parent(dev); 2627 cpi->version_num = 1; /* XXX??? */ 2628 cpi->hba_inquiry = PI_SDTR_ABLE; 2629 if (ch->caps & AHCI_CAP_SNCQ) 2630 cpi->hba_inquiry |= PI_TAG_ABLE; 2631 if (ch->caps & AHCI_CAP_SPM) 2632 cpi->hba_inquiry |= PI_SATAPM; 2633 cpi->target_sprt = 0; 2634 cpi->hba_misc = PIM_SEQSCAN; 2635 cpi->hba_eng_cnt = 0; 2636 if (ch->caps & AHCI_CAP_SPM) 2637 cpi->max_target = 15; 2638 else 2639 cpi->max_target = 0; 2640 cpi->max_lun = 0; 2641 cpi->initiator_id = 0; 2642 cpi->bus_id = cam_sim_bus(sim); 2643 cpi->base_transfer_speed = 150000; 2644 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2645 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2646 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2647 cpi->unit_number = cam_sim_unit(sim); 2648 cpi->transport = XPORT_SATA; 2649 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2650 cpi->protocol = PROTO_ATA; 2651 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2652 cpi->maxio = MAXPHYS; 2653 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2654 if (pci_get_devid(parent) == 0x43801002) 2655 cpi->maxio = min(cpi->maxio, 128 * 512); 2656 cpi->hba_vendor = pci_get_vendor(parent); 2657 cpi->hba_device = pci_get_device(parent); 2658 cpi->hba_subvendor = pci_get_subvendor(parent); 2659 cpi->hba_subdevice = pci_get_subdevice(parent); 2660 cpi->ccb_h.status = CAM_REQ_CMP; 2661 break; 2662 } 2663 default: 2664 ccb->ccb_h.status = CAM_REQ_INVALID; 2665 break; 2666 } 2667 xpt_done(ccb); 2668} 2669 2670static void 2671ahcipoll(struct cam_sim *sim) 2672{ 2673 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2674 2675 ahci_ch_intr(ch->dev); 2676} 2677