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("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/ata.h> 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/malloc.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/sema.h> 41 #include <sys/taskqueue.h> 42 #include <vm/uma.h> 43 #include <machine/stdarg.h> 44 #include <machine/resource.h> 45 #include <machine/bus.h> 46 #include <sys/rman.h> 47 #include <dev/pci/pcivar.h> 48 #include <dev/pci/pcireg.h> 49 #include "ahci.h" 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_sim.h> 54 #include <cam/cam_xpt_sim.h> 55 #include <cam/cam_debug.h> 56 57 /* local prototypes */ 58 static int ahci_setup_interrupt(device_t dev); 59 static void ahci_intr(void *data); 60 static void ahci_intr_one(void *data); 61 static int ahci_suspend(device_t dev); 62 static int ahci_resume(device_t dev); 63 static int ahci_ch_init(device_t dev); 64 static int ahci_ch_deinit(device_t dev); 65 static int ahci_ch_suspend(device_t dev); 66 static int ahci_ch_resume(device_t dev); 67 static void ahci_ch_pm(void *arg); 68 static void ahci_ch_intr_locked(void *data); 69 static void ahci_ch_intr(void *data); 70 static int ahci_ctlr_reset(device_t dev); 71 static int ahci_ctlr_setup(device_t dev); 72 static void ahci_begin_transaction(device_t dev, union ccb *ccb); 73 static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 74 static void ahci_execute_transaction(struct ahci_slot *slot); 75 static void ahci_timeout(struct ahci_slot *slot); 76 static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 77 static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 78 static void ahci_dmainit(device_t dev); 79 static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 80 static void ahci_dmafini(device_t dev); 81 static void ahci_slotsalloc(device_t dev); 82 static void ahci_slotsfree(device_t dev); 83 static void ahci_reset(device_t dev); 84 static void ahci_start(device_t dev, int fbs); 85 static void ahci_stop(device_t dev); 86 static void ahci_clo(device_t dev); 87 static void ahci_start_fr(device_t dev); 88 static void ahci_stop_fr(device_t dev); 89 90 static int ahci_sata_connect(struct ahci_channel *ch); 91 static int ahci_sata_phy_reset(device_t dev); 92 static int ahci_wait_ready(device_t dev, int t); 93 94 static void ahci_issue_read_log(device_t dev); 95 static void ahci_process_read_log(device_t dev, union ccb *ccb); 96 97 static void ahciaction(struct cam_sim *sim, union ccb *ccb); 98 static void ahcipoll(struct cam_sim *sim); 99 100 MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 101 102 static struct { 103 uint32_t id; 104 uint8_t rev; 105 const char *name; 106 int quirks; 107 #define AHCI_Q_NOFORCE 1 108 #define AHCI_Q_NOPMP 2 109 #define AHCI_Q_NONCQ 4 110 #define AHCI_Q_1CH 8 111 #define AHCI_Q_2CH 16 112 #define AHCI_Q_4CH 32 113 #define AHCI_Q_EDGEIS 64 114 #define AHCI_Q_SATA2 128 115 #define AHCI_Q_NOBSYRES 256 116 #define AHCI_Q_NOAA 512 117 } ahci_ids[] = { 118 {0x43801002, 0x00, "ATI IXP600", 0}, 119 {0x43901002, 0x00, "ATI IXP700", 0}, 120 {0x43911002, 0x00, "ATI IXP700", 0}, 121 {0x43921002, 0x00, "ATI IXP700", 0}, 122 {0x43931002, 0x00, "ATI IXP700", 0}, 123 {0x43941002, 0x00, "ATI IXP800", 0}, 124 {0x43951002, 0x00, "ATI IXP800", 0}, 125 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 126 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 127 {0x26818086, 0x00, "Intel ESB2", 0}, 128 {0x26828086, 0x00, "Intel ESB2", 0}, 129 {0x26838086, 0x00, "Intel ESB2", 0}, 130 {0x27c18086, 0x00, "Intel ICH7", 0}, 131 {0x27c38086, 0x00, "Intel ICH7", 0}, 132 {0x27c58086, 0x00, "Intel ICH7M", 0}, 133 {0x27c68086, 0x00, "Intel ICH7M", 0}, 134 {0x28218086, 0x00, "Intel ICH8", 0}, 135 {0x28228086, 0x00, "Intel ICH8", 0}, 136 {0x28248086, 0x00, "Intel ICH8", 0}, 137 {0x28298086, 0x00, "Intel ICH8M", 0}, 138 {0x282a8086, 0x00, "Intel ICH8M", 0}, 139 {0x29228086, 0x00, "Intel ICH9", 0}, 140 {0x29238086, 0x00, "Intel ICH9", 0}, 141 {0x29248086, 0x00, "Intel ICH9", 0}, 142 {0x29258086, 0x00, "Intel ICH9", 0}, 143 {0x29278086, 0x00, "Intel ICH9", 0}, 144 {0x29298086, 0x00, "Intel ICH9M", 0}, 145 {0x292a8086, 0x00, "Intel ICH9M", 0}, 146 {0x292b8086, 0x00, "Intel ICH9M", 0}, 147 {0x292c8086, 0x00, "Intel ICH9M", 0}, 148 {0x292f8086, 0x00, "Intel ICH9M", 0}, 149 {0x294d8086, 0x00, "Intel ICH9", 0}, 150 {0x294e8086, 0x00, "Intel ICH9M", 0}, 151 {0x3a058086, 0x00, "Intel ICH10", 0}, 152 {0x3a228086, 0x00, "Intel ICH10", 0}, 153 {0x3a258086, 0x00, "Intel ICH10", 0}, 154 {0x3b228086, 0x00, "Intel PCH", 0}, 155 {0x3b238086, 0x00, "Intel PCH", 0}, 156 {0x3b248086, 0x00, "Intel PCH", 0}, 157 {0x3b258086, 0x00, "Intel PCH", 0}, 158 {0x3b298086, 0x00, "Intel PCH", 0}, 159 {0x3b2b8086, 0x00, "Intel PCH", 0}, 160 {0x3b2c8086, 0x00, "Intel PCH", 0}, 161 {0x3b2f8086, 0x00, "Intel PCH", 0}, 162 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 163 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 164 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 165 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 166 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 167 {0x611111ab, 0x00, "Marvell 88SX6111", AHCI_Q_NOFORCE|AHCI_Q_1CH|AHCI_Q_EDGEIS}, 168 {0x612111ab, 0x00, "Marvell 88SX6121", AHCI_Q_NOFORCE|AHCI_Q_2CH|AHCI_Q_EDGEIS}, 169 {0x614111ab, 0x00, "Marvell 88SX6141", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 170 {0x614511ab, 0x00, "Marvell 88SX6145", AHCI_Q_NOFORCE|AHCI_Q_4CH|AHCI_Q_EDGEIS}, 171 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES}, 172 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 173 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 174 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 175 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 176 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 177 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 178 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 179 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 180 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 181 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 182 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 183 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 184 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 185 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 186 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 187 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 188 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 189 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 190 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 191 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 192 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 193 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 194 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 195 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 196 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 197 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 198 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 199 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 200 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 201 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 202 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 203 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 204 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 205 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 206 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 207 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 208 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 209 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 210 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 211 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 212 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 213 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 214 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 215 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 216 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 217 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 218 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 219 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 220 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 221 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 222 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 223 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 224 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 225 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 226 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 227 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 228 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 229 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 230 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 231 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 232 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 233 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 234 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 235 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 236 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 237 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 238 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 239 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 240 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 241 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 242 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 243 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 244 {0x11841039, 0x00, "SiS 966", 0}, 245 {0x11851039, 0x00, "SiS 968", 0}, 246 {0x01861039, 0x00, "SiS 968", 0}, 247 {0x00000000, 0x00, NULL, 0} 248 }; 249 250 static int 251 ahci_probe(device_t dev) 252 { 253 char buf[64]; 254 int i, valid = 0; 255 uint32_t devid = pci_get_devid(dev); 256 uint8_t revid = pci_get_revid(dev); 257 258 /* Is this a possible AHCI candidate? */ 259 if (pci_get_class(dev) == PCIC_STORAGE && 260 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 261 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 262 valid = 1; 263 /* Is this a known AHCI chip? */ 264 for (i = 0; ahci_ids[i].id != 0; i++) { 265 if (ahci_ids[i].id == devid && 266 ahci_ids[i].rev <= revid && 267 (valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) { 268 /* Do not attach JMicrons with single PCI function. */ 269 if (pci_get_vendor(dev) == 0x197b && 270 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 271 return (ENXIO); 272 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 273 ahci_ids[i].name); 274 device_set_desc_copy(dev, buf); 275 return (BUS_PROBE_VENDOR); 276 } 277 } 278 if (!valid) 279 return (ENXIO); 280 device_set_desc_copy(dev, "AHCI SATA controller"); 281 return (BUS_PROBE_VENDOR); 282 } 283 284 static int 285 ahci_ata_probe(device_t dev) 286 { 287 char buf[64]; 288 int i; 289 uint32_t devid = pci_get_devid(dev); 290 uint8_t revid = pci_get_revid(dev); 291 292 if ((intptr_t)device_get_ivars(dev) >= 0) 293 return (ENXIO); 294 /* Is this a known AHCI chip? */ 295 for (i = 0; ahci_ids[i].id != 0; i++) { 296 if (ahci_ids[i].id == devid && 297 ahci_ids[i].rev <= revid) { 298 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 299 ahci_ids[i].name); 300 device_set_desc_copy(dev, buf); 301 return (BUS_PROBE_VENDOR); 302 } 303 } 304 device_set_desc_copy(dev, "AHCI SATA controller"); 305 return (BUS_PROBE_VENDOR); 306 } 307 308 static int 309 ahci_attach(device_t dev) 310 { 311 struct ahci_controller *ctlr = device_get_softc(dev); 312 device_t child; 313 int error, unit, speed, i; 314 uint32_t devid = pci_get_devid(dev); 315 uint8_t revid = pci_get_revid(dev); 316 u_int32_t version; 317 318 ctlr->dev = dev; 319 i = 0; 320 while (ahci_ids[i].id != 0 && 321 (ahci_ids[i].id != devid || 322 ahci_ids[i].rev > revid)) 323 i++; 324 ctlr->quirks = ahci_ids[i].quirks; 325 resource_int_value(device_get_name(dev), 326 device_get_unit(dev), "ccc", &ctlr->ccc); 327 /* if we have a memory BAR(5) we are likely on an AHCI part */ 328 ctlr->r_rid = PCIR_BAR(5); 329 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 330 &ctlr->r_rid, RF_ACTIVE))) 331 return ENXIO; 332 /* Setup our own memory management for channels. */ 333 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 334 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 335 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 336 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 337 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 338 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 339 return (error); 340 } 341 if ((error = rman_manage_region(&ctlr->sc_iomem, 342 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 343 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 344 rman_fini(&ctlr->sc_iomem); 345 return (error); 346 } 347 pci_enable_busmaster(dev); 348 /* Reset controller */ 349 if ((error = ahci_ctlr_reset(dev)) != 0) { 350 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 351 rman_fini(&ctlr->sc_iomem); 352 return (error); 353 }; 354 /* Get the HW capabilities */ 355 version = ATA_INL(ctlr->r_mem, AHCI_VS); 356 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 357 if (version >= 0x00010020) 358 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 359 if (ctlr->caps & AHCI_CAP_EMS) 360 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 361 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 362 if (ctlr->quirks & AHCI_Q_1CH) { 363 ctlr->caps &= ~AHCI_CAP_NPMASK; 364 ctlr->ichannels &= 0x01; 365 } 366 if (ctlr->quirks & AHCI_Q_2CH) { 367 ctlr->caps &= ~AHCI_CAP_NPMASK; 368 ctlr->caps |= 1; 369 ctlr->ichannels &= 0x03; 370 } 371 if (ctlr->quirks & AHCI_Q_4CH) { 372 ctlr->caps &= ~AHCI_CAP_NPMASK; 373 ctlr->caps |= 3; 374 ctlr->ichannels &= 0x0f; 375 } 376 ctlr->channels = MAX(flsl(ctlr->ichannels), 377 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 378 if (ctlr->quirks & AHCI_Q_NOPMP) 379 ctlr->caps &= ~AHCI_CAP_SPM; 380 if (ctlr->quirks & AHCI_Q_NONCQ) 381 ctlr->caps &= ~AHCI_CAP_SNCQ; 382 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 383 ctlr->ccc = 0; 384 ahci_ctlr_setup(dev); 385 /* Setup interrupts. */ 386 if (ahci_setup_interrupt(dev)) { 387 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 388 rman_fini(&ctlr->sc_iomem); 389 return ENXIO; 390 } 391 /* Announce HW capabilities. */ 392 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 393 device_printf(dev, 394 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 395 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 396 ((version >> 4) & 0xf0) + (version & 0x0f), 397 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 398 ((speed == 1) ? "1.5":((speed == 2) ? "3": 399 ((speed == 3) ? "6":"?"))), 400 (ctlr->caps & AHCI_CAP_SPM) ? 401 "supported" : "not supported", 402 (ctlr->caps & AHCI_CAP_FBSS) ? 403 " with FBS" : ""); 404 if (bootverbose) { 405 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 406 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 407 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 408 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 409 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 410 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 411 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 412 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 413 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 414 ((speed == 1) ? "1.5":((speed == 2) ? "3": 415 ((speed == 3) ? "6":"?")))); 416 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 417 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 418 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 419 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 420 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 421 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 422 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 423 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 424 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 425 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 426 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 427 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 428 } 429 if (bootverbose && version >= 0x00010020) { 430 device_printf(dev, "Caps2:%s%s%s\n", 431 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 432 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 433 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 434 } 435 if (bootverbose && (ctlr->caps & AHCI_CAP_EMS)) { 436 device_printf(dev, "EM Caps:%s%s%s%s%s%s%s%s\n", 437 (ctlr->capsem & AHCI_EM_PM) ? " PM":"", 438 (ctlr->capsem & AHCI_EM_ALHD) ? " ALHD":"", 439 (ctlr->capsem & AHCI_EM_XMT) ? " XMT":"", 440 (ctlr->capsem & AHCI_EM_SMB) ? " SMB":"", 441 (ctlr->capsem & AHCI_EM_SGPIO) ? " SGPIO":"", 442 (ctlr->capsem & AHCI_EM_SES2) ? " SES-2":"", 443 (ctlr->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"", 444 (ctlr->capsem & AHCI_EM_LED) ? " LED":""); 445 } 446 /* Attach all channels on this controller */ 447 for (unit = 0; unit < ctlr->channels; unit++) { 448 if ((ctlr->ichannels & (1 << unit)) == 0) 449 continue; 450 child = device_add_child(dev, "ahcich", -1); 451 if (child == NULL) 452 device_printf(dev, "failed to add channel device\n"); 453 else 454 device_set_ivars(child, (void *)(intptr_t)unit); 455 } 456 bus_generic_attach(dev); 457 return 0; 458 } 459 460 static int 461 ahci_detach(device_t dev) 462 { 463 struct ahci_controller *ctlr = device_get_softc(dev); 464 device_t *children; 465 int nchildren, i; 466 467 /* Detach & delete all children */ 468 if (!device_get_children(dev, &children, &nchildren)) { 469 for (i = 0; i < nchildren; i++) 470 device_delete_child(dev, children[i]); 471 free(children, M_TEMP); 472 } 473 /* Free interrupts. */ 474 for (i = 0; i < ctlr->numirqs; i++) { 475 if (ctlr->irqs[i].r_irq) { 476 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 477 ctlr->irqs[i].handle); 478 bus_release_resource(dev, SYS_RES_IRQ, 479 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 480 } 481 } 482 pci_release_msi(dev); 483 /* Free memory. */ 484 rman_fini(&ctlr->sc_iomem); 485 if (ctlr->r_mem) 486 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 487 return (0); 488 } 489 490 static int 491 ahci_ctlr_reset(device_t dev) 492 { 493 struct ahci_controller *ctlr = device_get_softc(dev); 494 int timeout; 495 496 if (pci_read_config(dev, 0x00, 4) == 0x28298086 && 497 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 498 pci_write_config(dev, 0x92, 0x01, 1); 499 /* Enable AHCI mode */ 500 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 501 /* Reset AHCI controller */ 502 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 503 for (timeout = 1000; timeout > 0; timeout--) { 504 DELAY(1000); 505 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 506 break; 507 } 508 if (timeout == 0) { 509 device_printf(dev, "AHCI controller reset failure\n"); 510 return ENXIO; 511 } 512 /* Reenable AHCI mode */ 513 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 514 return (0); 515 } 516 517 static int 518 ahci_ctlr_setup(device_t dev) 519 { 520 struct ahci_controller *ctlr = device_get_softc(dev); 521 /* Clear interrupts */ 522 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 523 /* Configure CCC */ 524 if (ctlr->ccc) { 525 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 526 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 527 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 528 (4 << AHCI_CCCC_CC_SHIFT) | 529 AHCI_CCCC_EN); 530 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 531 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 532 if (bootverbose) { 533 device_printf(dev, 534 "CCC with %dms/4cmd enabled on vector %d\n", 535 ctlr->ccc, ctlr->cccv); 536 } 537 } 538 /* Enable AHCI interrupts */ 539 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 540 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 541 return (0); 542 } 543 544 static int 545 ahci_suspend(device_t dev) 546 { 547 struct ahci_controller *ctlr = device_get_softc(dev); 548 549 bus_generic_suspend(dev); 550 /* Disable interupts, so the state change(s) doesn't trigger */ 551 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 552 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 553 return 0; 554 } 555 556 static int 557 ahci_resume(device_t dev) 558 { 559 int res; 560 561 if ((res = ahci_ctlr_reset(dev)) != 0) 562 return (res); 563 ahci_ctlr_setup(dev); 564 return (bus_generic_resume(dev)); 565 } 566 567 static int 568 ahci_setup_interrupt(device_t dev) 569 { 570 struct ahci_controller *ctlr = device_get_softc(dev); 571 int i, msi = 1; 572 573 /* Process hints. */ 574 resource_int_value(device_get_name(dev), 575 device_get_unit(dev), "msi", &msi); 576 if (msi < 0) 577 msi = 0; 578 else if (msi == 1) 579 msi = min(1, pci_msi_count(dev)); 580 else if (msi > 1) 581 msi = pci_msi_count(dev); 582 /* Allocate MSI if needed/present. */ 583 if (msi && pci_alloc_msi(dev, &msi) == 0) { 584 ctlr->numirqs = msi; 585 } else { 586 msi = 0; 587 ctlr->numirqs = 1; 588 } 589 /* Check for single MSI vector fallback. */ 590 if (ctlr->numirqs > 1 && 591 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 592 device_printf(dev, "Falling back to one MSI\n"); 593 ctlr->numirqs = 1; 594 } 595 /* Allocate all IRQs. */ 596 for (i = 0; i < ctlr->numirqs; i++) { 597 ctlr->irqs[i].ctlr = ctlr; 598 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 599 if (ctlr->numirqs == 1 || i >= ctlr->channels || 600 (ctlr->ccc && i == ctlr->cccv)) 601 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 602 else if (i == ctlr->numirqs - 1) 603 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 604 else 605 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 606 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 607 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 608 device_printf(dev, "unable to map interrupt\n"); 609 return ENXIO; 610 } 611 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 612 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 613 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 614 /* SOS XXX release r_irq */ 615 device_printf(dev, "unable to setup interrupt\n"); 616 return ENXIO; 617 } 618 if (ctlr->numirqs > 1) { 619 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 620 ctlr->irqs[i].handle, 621 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 622 "ch%d" : "%d", i); 623 } 624 } 625 return (0); 626 } 627 628 /* 629 * Common case interrupt handler. 630 */ 631 static void 632 ahci_intr(void *data) 633 { 634 struct ahci_controller_irq *irq = data; 635 struct ahci_controller *ctlr = irq->ctlr; 636 u_int32_t is, ise = 0; 637 void *arg; 638 int unit; 639 640 if (irq->mode == AHCI_IRQ_MODE_ALL) { 641 unit = 0; 642 if (ctlr->ccc) 643 is = ctlr->ichannels; 644 else 645 is = ATA_INL(ctlr->r_mem, AHCI_IS); 646 } else { /* AHCI_IRQ_MODE_AFTER */ 647 unit = irq->r_irq_rid - 1; 648 is = ATA_INL(ctlr->r_mem, AHCI_IS); 649 } 650 /* CCC interrupt is edge triggered. */ 651 if (ctlr->ccc) 652 ise = 1 << ctlr->cccv; 653 /* Some controllers have edge triggered IS. */ 654 if (ctlr->quirks & AHCI_Q_EDGEIS) 655 ise |= is; 656 if (ise != 0) 657 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 658 for (; unit < ctlr->channels; unit++) { 659 if ((is & (1 << unit)) != 0 && 660 (arg = ctlr->interrupt[unit].argument)) { 661 ctlr->interrupt[unit].function(arg); 662 } 663 } 664 /* AHCI declares level triggered IS. */ 665 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 666 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 667 } 668 669 /* 670 * Simplified interrupt handler for multivector MSI mode. 671 */ 672 static void 673 ahci_intr_one(void *data) 674 { 675 struct ahci_controller_irq *irq = data; 676 struct ahci_controller *ctlr = irq->ctlr; 677 void *arg; 678 int unit; 679 680 unit = irq->r_irq_rid - 1; 681 /* Some controllers have edge triggered IS. */ 682 if (ctlr->quirks & AHCI_Q_EDGEIS) 683 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 684 if ((arg = ctlr->interrupt[unit].argument)) 685 ctlr->interrupt[unit].function(arg); 686 /* AHCI declares level triggered IS. */ 687 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 688 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 689 } 690 691 static struct resource * 692 ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 693 u_long start, u_long end, u_long count, u_int flags) 694 { 695 struct ahci_controller *ctlr = device_get_softc(dev); 696 int unit = ((struct ahci_channel *)device_get_softc(child))->unit; 697 struct resource *res = NULL; 698 int offset = AHCI_OFFSET + (unit << 7); 699 long st; 700 701 switch (type) { 702 case SYS_RES_MEMORY: 703 st = rman_get_start(ctlr->r_mem); 704 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 705 st + offset + 127, 128, RF_ACTIVE, child); 706 if (res) { 707 bus_space_handle_t bsh; 708 bus_space_tag_t bst; 709 bsh = rman_get_bushandle(ctlr->r_mem); 710 bst = rman_get_bustag(ctlr->r_mem); 711 bus_space_subregion(bst, bsh, offset, 128, &bsh); 712 rman_set_bushandle(res, bsh); 713 rman_set_bustag(res, bst); 714 } 715 break; 716 case SYS_RES_IRQ: 717 if (*rid == ATA_IRQ_RID) 718 res = ctlr->irqs[0].r_irq; 719 break; 720 } 721 return (res); 722 } 723 724 static int 725 ahci_release_resource(device_t dev, device_t child, int type, int rid, 726 struct resource *r) 727 { 728 729 switch (type) { 730 case SYS_RES_MEMORY: 731 rman_release_resource(r); 732 return (0); 733 case SYS_RES_IRQ: 734 if (rid != ATA_IRQ_RID) 735 return ENOENT; 736 return (0); 737 } 738 return (EINVAL); 739 } 740 741 static int 742 ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 743 int flags, driver_filter_t *filter, driver_intr_t *function, 744 void *argument, void **cookiep) 745 { 746 struct ahci_controller *ctlr = device_get_softc(dev); 747 int unit = (intptr_t)device_get_ivars(child); 748 749 if (filter != NULL) { 750 printf("ahci.c: we cannot use a filter here\n"); 751 return (EINVAL); 752 } 753 ctlr->interrupt[unit].function = function; 754 ctlr->interrupt[unit].argument = argument; 755 return (0); 756 } 757 758 static int 759 ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 760 void *cookie) 761 { 762 struct ahci_controller *ctlr = device_get_softc(dev); 763 int unit = (intptr_t)device_get_ivars(child); 764 765 ctlr->interrupt[unit].function = NULL; 766 ctlr->interrupt[unit].argument = NULL; 767 return (0); 768 } 769 770 static int 771 ahci_print_child(device_t dev, device_t child) 772 { 773 int retval; 774 775 retval = bus_print_child_header(dev, child); 776 retval += printf(" at channel %d", 777 (int)(intptr_t)device_get_ivars(child)); 778 retval += bus_print_child_footer(dev, child); 779 780 return (retval); 781 } 782 783 static int 784 ahci_child_location_str(device_t dev, device_t child, char *buf, 785 size_t buflen) 786 { 787 788 snprintf(buf, buflen, "channel=%d", 789 (int)(intptr_t)device_get_ivars(child)); 790 return (0); 791 } 792 793 devclass_t ahci_devclass; 794 static device_method_t ahci_methods[] = { 795 DEVMETHOD(device_probe, ahci_probe), 796 DEVMETHOD(device_attach, ahci_attach), 797 DEVMETHOD(device_detach, ahci_detach), 798 DEVMETHOD(device_suspend, ahci_suspend), 799 DEVMETHOD(device_resume, ahci_resume), 800 DEVMETHOD(bus_print_child, ahci_print_child), 801 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 802 DEVMETHOD(bus_release_resource, ahci_release_resource), 803 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 804 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 805 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 806 { 0, 0 } 807 }; 808 static driver_t ahci_driver = { 809 "ahci", 810 ahci_methods, 811 sizeof(struct ahci_controller) 812 }; 813 DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 814 static device_method_t ahci_ata_methods[] = { 815 DEVMETHOD(device_probe, ahci_ata_probe), 816 DEVMETHOD(device_attach, ahci_attach), 817 DEVMETHOD(device_detach, ahci_detach), 818 DEVMETHOD(device_suspend, ahci_suspend), 819 DEVMETHOD(device_resume, ahci_resume), 820 DEVMETHOD(bus_print_child, ahci_print_child), 821 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 822 DEVMETHOD(bus_release_resource, ahci_release_resource), 823 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 824 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 825 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 826 { 0, 0 } 827 }; 828 static driver_t ahci_ata_driver = { 829 "ahci", 830 ahci_ata_methods, 831 sizeof(struct ahci_controller) 832 }; 833 DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 834 MODULE_VERSION(ahci, 1); 835 MODULE_DEPEND(ahci, cam, 1, 1, 1); 836 837 static int 838 ahci_ch_probe(device_t dev) 839 { 840 841 device_set_desc_copy(dev, "AHCI channel"); 842 return (0); 843 } 844 845 static int 846 ahci_ch_attach(device_t dev) 847 { 848 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 849 struct ahci_channel *ch = device_get_softc(dev); 850 struct cam_devq *devq; 851 int rid, error, i, sata_rev = 0; 852 u_int32_t version; 853 854 ch->dev = dev; 855 ch->unit = (intptr_t)device_get_ivars(dev); 856 ch->caps = ctlr->caps; 857 ch->caps2 = ctlr->caps2; 858 ch->quirks = ctlr->quirks; 859 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 860 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 861 resource_int_value(device_get_name(dev), 862 device_get_unit(dev), "pm_level", &ch->pm_level); 863 if (ch->pm_level > 3) 864 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 865 /* Limit speed for my onboard JMicron external port. 866 * It is not eSATA really. */ 867 if (pci_get_devid(ctlr->dev) == 0x2363197b && 868 pci_get_subvendor(ctlr->dev) == 0x1043 && 869 pci_get_subdevice(ctlr->dev) == 0x81e4 && 870 ch->unit == 0) 871 sata_rev = 1; 872 if (ch->quirks & AHCI_Q_SATA2) 873 sata_rev = 2; 874 resource_int_value(device_get_name(dev), 875 device_get_unit(dev), "sata_rev", &sata_rev); 876 for (i = 0; i < 16; i++) { 877 ch->user[i].revision = sata_rev; 878 ch->user[i].mode = 0; 879 ch->user[i].bytecount = 8192; 880 ch->user[i].tags = ch->numslots; 881 ch->user[i].caps = 0; 882 ch->curr[i] = ch->user[i]; 883 if (ch->pm_level) { 884 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 885 CTS_SATA_CAPS_H_APST | 886 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 887 } 888 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA; 889 } 890 rid = ch->unit; 891 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 892 &rid, RF_ACTIVE))) 893 return (ENXIO); 894 ahci_dmainit(dev); 895 ahci_slotsalloc(dev); 896 ahci_ch_init(dev); 897 mtx_lock(&ch->mtx); 898 rid = ATA_IRQ_RID; 899 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 900 &rid, RF_SHAREABLE | RF_ACTIVE))) { 901 device_printf(dev, "Unable to map interrupt\n"); 902 error = ENXIO; 903 goto err0; 904 } 905 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 906 ahci_ch_intr_locked, dev, &ch->ih))) { 907 device_printf(dev, "Unable to setup interrupt\n"); 908 error = ENXIO; 909 goto err1; 910 } 911 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 912 version = ATA_INL(ctlr->r_mem, AHCI_VS); 913 if (version < 0x00010020 && (ctlr->caps & AHCI_CAP_FBSS)) 914 ch->chcaps |= AHCI_P_CMD_FBSCP; 915 if (bootverbose) { 916 device_printf(dev, "Caps:%s%s%s%s%s\n", 917 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 918 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 919 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 920 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 921 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 922 } 923 /* Create the device queue for our SIM. */ 924 devq = cam_simq_alloc(ch->numslots); 925 if (devq == NULL) { 926 device_printf(dev, "Unable to allocate simq\n"); 927 error = ENOMEM; 928 goto err1; 929 } 930 /* Construct SIM entry */ 931 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 932 device_get_unit(dev), &ch->mtx, 933 min(2, ch->numslots), 934 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 935 devq); 936 if (ch->sim == NULL) { 937 cam_simq_free(devq); 938 device_printf(dev, "unable to allocate sim\n"); 939 error = ENOMEM; 940 goto err1; 941 } 942 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 943 device_printf(dev, "unable to register xpt bus\n"); 944 error = ENXIO; 945 goto err2; 946 } 947 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 948 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 949 device_printf(dev, "unable to create path\n"); 950 error = ENXIO; 951 goto err3; 952 } 953 if (ch->pm_level > 3) { 954 callout_reset(&ch->pm_timer, 955 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 956 ahci_ch_pm, dev); 957 } 958 mtx_unlock(&ch->mtx); 959 return (0); 960 961 err3: 962 xpt_bus_deregister(cam_sim_path(ch->sim)); 963 err2: 964 cam_sim_free(ch->sim, /*free_devq*/TRUE); 965 err1: 966 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 967 err0: 968 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 969 mtx_unlock(&ch->mtx); 970 return (error); 971 } 972 973 static int 974 ahci_ch_detach(device_t dev) 975 { 976 struct ahci_channel *ch = device_get_softc(dev); 977 978 mtx_lock(&ch->mtx); 979 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 980 xpt_free_path(ch->path); 981 xpt_bus_deregister(cam_sim_path(ch->sim)); 982 cam_sim_free(ch->sim, /*free_devq*/TRUE); 983 mtx_unlock(&ch->mtx); 984 985 if (ch->pm_level > 3) 986 callout_drain(&ch->pm_timer); 987 bus_teardown_intr(dev, ch->r_irq, ch->ih); 988 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 989 990 ahci_ch_deinit(dev); 991 ahci_slotsfree(dev); 992 ahci_dmafini(dev); 993 994 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 995 mtx_destroy(&ch->mtx); 996 return (0); 997 } 998 999 static int 1000 ahci_ch_init(device_t dev) 1001 { 1002 struct ahci_channel *ch = device_get_softc(dev); 1003 uint64_t work; 1004 1005 /* Disable port interrupts */ 1006 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1007 /* Setup work areas */ 1008 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1009 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1010 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1011 work = ch->dma.rfis_bus; 1012 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1013 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1014 /* Activate the channel and power/spin up device */ 1015 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1016 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1017 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1018 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1019 ahci_start_fr(dev); 1020 ahci_start(dev, 1); 1021 return (0); 1022 } 1023 1024 static int 1025 ahci_ch_deinit(device_t dev) 1026 { 1027 struct ahci_channel *ch = device_get_softc(dev); 1028 1029 /* Disable port interrupts. */ 1030 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1031 /* Reset command register. */ 1032 ahci_stop(dev); 1033 ahci_stop_fr(dev); 1034 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1035 /* Allow everything, including partial and slumber modes. */ 1036 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1037 /* Request slumber mode transition and give some time to get there. */ 1038 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1039 DELAY(100); 1040 /* Disable PHY. */ 1041 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1042 return (0); 1043 } 1044 1045 static int 1046 ahci_ch_suspend(device_t dev) 1047 { 1048 struct ahci_channel *ch = device_get_softc(dev); 1049 1050 mtx_lock(&ch->mtx); 1051 xpt_freeze_simq(ch->sim, 1); 1052 while (ch->oslots) 1053 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1054 ahci_ch_deinit(dev); 1055 mtx_unlock(&ch->mtx); 1056 return (0); 1057 } 1058 1059 static int 1060 ahci_ch_resume(device_t dev) 1061 { 1062 struct ahci_channel *ch = device_get_softc(dev); 1063 1064 mtx_lock(&ch->mtx); 1065 ahci_ch_init(dev); 1066 ahci_reset(dev); 1067 xpt_release_simq(ch->sim, TRUE); 1068 mtx_unlock(&ch->mtx); 1069 return (0); 1070 } 1071 1072 devclass_t ahcich_devclass; 1073 static device_method_t ahcich_methods[] = { 1074 DEVMETHOD(device_probe, ahci_ch_probe), 1075 DEVMETHOD(device_attach, ahci_ch_attach), 1076 DEVMETHOD(device_detach, ahci_ch_detach), 1077 DEVMETHOD(device_suspend, ahci_ch_suspend), 1078 DEVMETHOD(device_resume, ahci_ch_resume), 1079 { 0, 0 } 1080 }; 1081 static driver_t ahcich_driver = { 1082 "ahcich", 1083 ahcich_methods, 1084 sizeof(struct ahci_channel) 1085 }; 1086 DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1087 1088 struct ahci_dc_cb_args { 1089 bus_addr_t maddr; 1090 int error; 1091 }; 1092 1093 static void 1094 ahci_dmainit(device_t dev) 1095 { 1096 struct ahci_channel *ch = device_get_softc(dev); 1097 struct ahci_dc_cb_args dcba; 1098 size_t rfsize; 1099 1100 if (ch->caps & AHCI_CAP_64BIT) 1101 ch->dma.max_address = BUS_SPACE_MAXADDR; 1102 else 1103 ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT; 1104 /* Command area. */ 1105 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1106 ch->dma.max_address, BUS_SPACE_MAXADDR, 1107 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1108 0, NULL, NULL, &ch->dma.work_tag)) 1109 goto error; 1110 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 0, 1111 &ch->dma.work_map)) 1112 goto error; 1113 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1114 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1115 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1116 goto error; 1117 } 1118 ch->dma.work_bus = dcba.maddr; 1119 /* FIS receive area. */ 1120 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1121 rfsize = 4096; 1122 else 1123 rfsize = 256; 1124 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1125 ch->dma.max_address, BUS_SPACE_MAXADDR, 1126 NULL, NULL, rfsize, 1, rfsize, 1127 0, NULL, NULL, &ch->dma.rfis_tag)) 1128 goto error; 1129 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1130 &ch->dma.rfis_map)) 1131 goto error; 1132 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1133 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1134 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1135 goto error; 1136 } 1137 ch->dma.rfis_bus = dcba.maddr; 1138 /* Data area. */ 1139 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1140 ch->dma.max_address, BUS_SPACE_MAXADDR, 1141 NULL, NULL, 1142 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1143 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1144 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1145 goto error; 1146 } 1147 return; 1148 1149 error: 1150 device_printf(dev, "WARNING - DMA initialization failed\n"); 1151 ahci_dmafini(dev); 1152 } 1153 1154 static void 1155 ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1156 { 1157 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1158 1159 if (!(dcba->error = error)) 1160 dcba->maddr = segs[0].ds_addr; 1161 } 1162 1163 static void 1164 ahci_dmafini(device_t dev) 1165 { 1166 struct ahci_channel *ch = device_get_softc(dev); 1167 1168 if (ch->dma.data_tag) { 1169 bus_dma_tag_destroy(ch->dma.data_tag); 1170 ch->dma.data_tag = NULL; 1171 } 1172 if (ch->dma.rfis_bus) { 1173 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1174 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1175 ch->dma.rfis_bus = 0; 1176 ch->dma.rfis_map = NULL; 1177 ch->dma.rfis = NULL; 1178 } 1179 if (ch->dma.work_bus) { 1180 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1181 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1182 ch->dma.work_bus = 0; 1183 ch->dma.work_map = NULL; 1184 ch->dma.work = NULL; 1185 } 1186 if (ch->dma.work_tag) { 1187 bus_dma_tag_destroy(ch->dma.work_tag); 1188 ch->dma.work_tag = NULL; 1189 } 1190 } 1191 1192 static void 1193 ahci_slotsalloc(device_t dev) 1194 { 1195 struct ahci_channel *ch = device_get_softc(dev); 1196 int i; 1197 1198 /* Alloc and setup command/dma slots */ 1199 bzero(ch->slot, sizeof(ch->slot)); 1200 for (i = 0; i < ch->numslots; i++) { 1201 struct ahci_slot *slot = &ch->slot[i]; 1202 1203 slot->dev = dev; 1204 slot->slot = i; 1205 slot->state = AHCI_SLOT_EMPTY; 1206 slot->ccb = NULL; 1207 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1208 1209 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1210 device_printf(ch->dev, "FAILURE - create data_map\n"); 1211 } 1212 } 1213 1214 static void 1215 ahci_slotsfree(device_t dev) 1216 { 1217 struct ahci_channel *ch = device_get_softc(dev); 1218 int i; 1219 1220 /* Free all dma slots */ 1221 for (i = 0; i < ch->numslots; i++) { 1222 struct ahci_slot *slot = &ch->slot[i]; 1223 1224 callout_drain(&slot->timeout); 1225 if (slot->dma.data_map) { 1226 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1227 slot->dma.data_map = NULL; 1228 } 1229 } 1230 } 1231 1232 static void 1233 ahci_phy_check_events(device_t dev, u_int32_t serr) 1234 { 1235 struct ahci_channel *ch = device_get_softc(dev); 1236 1237 if ((serr & ATA_SE_PHY_CHANGED) && (ch->pm_level == 0)) { 1238 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1239 union ccb *ccb; 1240 1241 if (bootverbose) { 1242 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 1243 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 1244 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) { 1245 device_printf(dev, "CONNECT requested\n"); 1246 } else 1247 device_printf(dev, "DISCONNECT requested\n"); 1248 } 1249 ahci_reset(dev); 1250 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1251 return; 1252 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1253 cam_sim_path(ch->sim), 1254 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1255 xpt_free_ccb(ccb); 1256 return; 1257 } 1258 xpt_rescan(ccb); 1259 } 1260 } 1261 1262 static void 1263 ahci_notify_events(device_t dev, u_int32_t status) 1264 { 1265 struct ahci_channel *ch = device_get_softc(dev); 1266 struct cam_path *dpath; 1267 int i; 1268 1269 if (ch->caps & AHCI_CAP_SSNTF) 1270 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1271 if (bootverbose) 1272 device_printf(dev, "SNTF 0x%04x\n", status); 1273 for (i = 0; i < 16; i++) { 1274 if ((status & (1 << i)) == 0) 1275 continue; 1276 if (xpt_create_path(&dpath, NULL, 1277 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1278 xpt_async(AC_SCSI_AEN, dpath, NULL); 1279 xpt_free_path(dpath); 1280 } 1281 } 1282 } 1283 1284 static void 1285 ahci_ch_intr_locked(void *data) 1286 { 1287 device_t dev = (device_t)data; 1288 struct ahci_channel *ch = device_get_softc(dev); 1289 1290 mtx_lock(&ch->mtx); 1291 ahci_ch_intr(data); 1292 mtx_unlock(&ch->mtx); 1293 } 1294 1295 static void 1296 ahci_ch_pm(void *arg) 1297 { 1298 device_t dev = (device_t)arg; 1299 struct ahci_channel *ch = device_get_softc(dev); 1300 uint32_t work; 1301 1302 if (ch->numrslots != 0) 1303 return; 1304 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1305 if (ch->pm_level == 4) 1306 work |= AHCI_P_CMD_PARTIAL; 1307 else 1308 work |= AHCI_P_CMD_SLUMBER; 1309 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1310 } 1311 1312 static void 1313 ahci_ch_intr(void *data) 1314 { 1315 device_t dev = (device_t)data; 1316 struct ahci_channel *ch = device_get_softc(dev); 1317 uint32_t istatus, sstatus, cstatus, serr = 0, sntf = 0, ok, err; 1318 enum ahci_err_type et; 1319 int i, ccs, port; 1320 1321 /* Read and clear interrupt statuses. */ 1322 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1323 if (istatus == 0) 1324 return; 1325 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1326 /* Read command statuses. */ 1327 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1328 cstatus = ATA_INL(ch->r_mem, AHCI_P_CI); 1329 if (istatus & AHCI_P_IX_SDB) { 1330 if (ch->caps & AHCI_CAP_SSNTF) 1331 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1332 else if (ch->fbs_enabled) { 1333 u_int8_t *fis = ch->dma.rfis + 0x58; 1334 1335 for (i = 0; i < 16; i++) { 1336 if (fis[1] & 0x80) { 1337 fis[1] &= 0x7f; 1338 sntf |= 1 << i; 1339 } 1340 fis += 256; 1341 } 1342 } else { 1343 u_int8_t *fis = ch->dma.rfis + 0x58; 1344 1345 if (fis[1] & 0x80) 1346 sntf = (1 << (fis[1] & 0x0f)); 1347 } 1348 } 1349 /* Process PHY events */ 1350 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1351 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1352 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1353 if (serr) { 1354 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1355 ahci_phy_check_events(dev, serr); 1356 } 1357 } 1358 /* Process command errors */ 1359 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1360 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1361 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1362 >> AHCI_P_CMD_CCS_SHIFT; 1363 //device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1364 // __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1365 // serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1366 port = -1; 1367 if (ch->fbs_enabled) { 1368 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1369 if (fbs & AHCI_P_FBS_SDE) { 1370 port = (fbs & AHCI_P_FBS_DWE) 1371 >> AHCI_P_FBS_DWE_SHIFT; 1372 } else { 1373 for (i = 0; i < 16; i++) { 1374 if (ch->numrslotspd[i] == 0) 1375 continue; 1376 if (port == -1) 1377 port = i; 1378 else if (port != i) { 1379 port = -2; 1380 break; 1381 } 1382 } 1383 } 1384 } 1385 err = ch->rslots & (cstatus | sstatus); 1386 } else { 1387 ccs = 0; 1388 err = 0; 1389 port = -1; 1390 } 1391 /* Complete all successfull commands. */ 1392 ok = ch->rslots & ~(cstatus | sstatus); 1393 for (i = 0; i < ch->numslots; i++) { 1394 if ((ok >> i) & 1) 1395 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1396 } 1397 /* On error, complete the rest of commands with error statuses. */ 1398 if (err) { 1399 if (ch->frozen) { 1400 union ccb *fccb = ch->frozen; 1401 ch->frozen = NULL; 1402 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1403 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1404 xpt_freeze_devq(fccb->ccb_h.path, 1); 1405 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1406 } 1407 xpt_done(fccb); 1408 } 1409 for (i = 0; i < ch->numslots; i++) { 1410 /* XXX: reqests in loading state. */ 1411 if (((err >> i) & 1) == 0) 1412 continue; 1413 if (port >= 0 && 1414 ch->slot[i].ccb->ccb_h.target_id != port) 1415 continue; 1416 if (istatus & AHCI_P_IX_TFE) { 1417 if (port != -2) { 1418 /* Task File Error */ 1419 if (ch->numtslotspd[ 1420 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1421 /* Untagged operation. */ 1422 if (i == ccs) 1423 et = AHCI_ERR_TFE; 1424 else 1425 et = AHCI_ERR_INNOCENT; 1426 } else { 1427 /* Tagged operation. */ 1428 et = AHCI_ERR_NCQ; 1429 } 1430 } else { 1431 et = AHCI_ERR_TFE; 1432 ch->fatalerr = 1; 1433 } 1434 } else if (istatus & AHCI_P_IX_IF) { 1435 if (ch->numtslots == 0 && i != ccs && port != -2) 1436 et = AHCI_ERR_INNOCENT; 1437 else 1438 et = AHCI_ERR_SATA; 1439 } else 1440 et = AHCI_ERR_INVALID; 1441 ahci_end_transaction(&ch->slot[i], et); 1442 } 1443 /* 1444 * We can't reinit port if there are some other 1445 * commands active, use resume to complete them. 1446 */ 1447 if (ch->rslots != 0) 1448 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1449 } 1450 /* Process NOTIFY events */ 1451 if (sntf) 1452 ahci_notify_events(dev, sntf); 1453 } 1454 1455 /* Must be called with channel locked. */ 1456 static int 1457 ahci_check_collision(device_t dev, union ccb *ccb) 1458 { 1459 struct ahci_channel *ch = device_get_softc(dev); 1460 int t = ccb->ccb_h.target_id; 1461 1462 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1463 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1464 /* Tagged command while we have no supported tag free. */ 1465 if (((~ch->oslots) & (0xffffffff >> (32 - 1466 ch->curr[t].tags))) == 0) 1467 return (1); 1468 /* If we have FBS */ 1469 if (ch->fbs_enabled) { 1470 /* Tagged command while untagged are active. */ 1471 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1472 return (1); 1473 } else { 1474 /* Tagged command while untagged are active. */ 1475 if (ch->numrslots != 0 && ch->numtslots == 0) 1476 return (1); 1477 /* Tagged command while tagged to other target is active. */ 1478 if (ch->numtslots != 0 && 1479 ch->taggedtarget != ccb->ccb_h.target_id) 1480 return (1); 1481 } 1482 } else { 1483 /* If we have FBS */ 1484 if (ch->fbs_enabled) { 1485 /* Untagged command while tagged are active. */ 1486 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1487 return (1); 1488 } else { 1489 /* Untagged command while tagged are active. */ 1490 if (ch->numrslots != 0 && ch->numtslots != 0) 1491 return (1); 1492 } 1493 } 1494 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1495 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1496 /* Atomic command while anything active. */ 1497 if (ch->numrslots != 0) 1498 return (1); 1499 } 1500 /* We have some atomic command running. */ 1501 if (ch->aslots != 0) 1502 return (1); 1503 return (0); 1504 } 1505 1506 /* Must be called with channel locked. */ 1507 static void 1508 ahci_begin_transaction(device_t dev, union ccb *ccb) 1509 { 1510 struct ahci_channel *ch = device_get_softc(dev); 1511 struct ahci_slot *slot; 1512 int tag, tags; 1513 1514 /* Choose empty slot. */ 1515 tags = ch->numslots; 1516 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1517 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1518 tags = ch->curr[ccb->ccb_h.target_id].tags; 1519 tag = ch->lastslot; 1520 while (1) { 1521 if (tag >= tags) 1522 tag = 0; 1523 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1524 break; 1525 tag++; 1526 }; 1527 ch->lastslot = tag; 1528 /* Occupy chosen slot. */ 1529 slot = &ch->slot[tag]; 1530 slot->ccb = ccb; 1531 /* Stop PM timer. */ 1532 if (ch->numrslots == 0 && ch->pm_level > 3) 1533 callout_stop(&ch->pm_timer); 1534 /* Update channel stats. */ 1535 ch->oslots |= (1 << slot->slot); 1536 ch->numrslots++; 1537 ch->numrslotspd[ccb->ccb_h.target_id]++; 1538 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1539 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1540 ch->numtslots++; 1541 ch->numtslotspd[ccb->ccb_h.target_id]++; 1542 ch->taggedtarget = ccb->ccb_h.target_id; 1543 } 1544 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1545 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1546 ch->aslots |= (1 << slot->slot); 1547 slot->dma.nsegs = 0; 1548 /* If request moves data, setup and load SG list */ 1549 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1550 void *buf; 1551 bus_size_t size; 1552 1553 slot->state = AHCI_SLOT_LOADING; 1554 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1555 buf = ccb->ataio.data_ptr; 1556 size = ccb->ataio.dxfer_len; 1557 } else { 1558 buf = ccb->csio.data_ptr; 1559 size = ccb->csio.dxfer_len; 1560 } 1561 bus_dmamap_load(ch->dma.data_tag, slot->dma.data_map, 1562 buf, size, ahci_dmasetprd, slot, 0); 1563 } else 1564 ahci_execute_transaction(slot); 1565 } 1566 1567 /* Locked by busdma engine. */ 1568 static void 1569 ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1570 { 1571 struct ahci_slot *slot = arg; 1572 struct ahci_channel *ch = device_get_softc(slot->dev); 1573 struct ahci_cmd_tab *ctp; 1574 struct ahci_dma_prd *prd; 1575 int i; 1576 1577 if (error) { 1578 device_printf(slot->dev, "DMA load error\n"); 1579 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1580 return; 1581 } 1582 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1583 /* Get a piece of the workspace for this request */ 1584 ctp = (struct ahci_cmd_tab *) 1585 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1586 /* Fill S/G table */ 1587 prd = &ctp->prd_tab[0]; 1588 for (i = 0; i < nsegs; i++) { 1589 prd[i].dba = htole64(segs[i].ds_addr); 1590 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1591 } 1592 slot->dma.nsegs = nsegs; 1593 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1594 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1595 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1596 ahci_execute_transaction(slot); 1597 } 1598 1599 /* Must be called with channel locked. */ 1600 static void 1601 ahci_execute_transaction(struct ahci_slot *slot) 1602 { 1603 device_t dev = slot->dev; 1604 struct ahci_channel *ch = device_get_softc(dev); 1605 struct ahci_cmd_tab *ctp; 1606 struct ahci_cmd_list *clp; 1607 union ccb *ccb = slot->ccb; 1608 int port = ccb->ccb_h.target_id & 0x0f; 1609 int fis_size, i; 1610 uint8_t *fis = ch->dma.rfis + 0x40; 1611 uint8_t val; 1612 1613 /* Get a piece of the workspace for this request */ 1614 ctp = (struct ahci_cmd_tab *) 1615 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1616 /* Setup the FIS for this request */ 1617 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1618 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1619 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1620 return; 1621 } 1622 /* Setup the command list entry */ 1623 clp = (struct ahci_cmd_list *) 1624 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1625 clp->prd_length = slot->dma.nsegs; 1626 clp->cmd_flags = (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1627 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1628 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1629 (fis_size / sizeof(u_int32_t)) | 1630 (port << 12); 1631 /* Special handling for Soft Reset command. */ 1632 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1633 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1634 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1635 /* Kick controller into sane state */ 1636 ahci_stop(dev); 1637 ahci_clo(dev); 1638 ahci_start(dev, 0); 1639 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1640 } else { 1641 /* Prepare FIS receive area for check. */ 1642 for (i = 0; i < 20; i++) 1643 fis[i] = 0xff; 1644 } 1645 } 1646 clp->bytecount = 0; 1647 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1648 (AHCI_CT_SIZE * slot->slot)); 1649 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1650 BUS_DMASYNC_PREWRITE); 1651 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1652 BUS_DMASYNC_PREREAD); 1653 /* Set ACTIVE bit for NCQ commands. */ 1654 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1655 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1656 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1657 } 1658 /* If FBS is enabled, set PMP port. */ 1659 if (ch->fbs_enabled) { 1660 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1661 (port << AHCI_P_FBS_DEV_SHIFT)); 1662 } 1663 /* Issue command to the controller. */ 1664 slot->state = AHCI_SLOT_RUNNING; 1665 ch->rslots |= (1 << slot->slot); 1666 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1667 /* Device reset commands doesn't interrupt. Poll them. */ 1668 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1669 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || 1670 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL))) { 1671 int count, timeout = ccb->ccb_h.timeout; 1672 enum ahci_err_type et = AHCI_ERR_NONE; 1673 1674 for (count = 0; count < timeout; count++) { 1675 DELAY(1000); 1676 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1677 break; 1678 if (ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) { 1679 device_printf(ch->dev, 1680 "Poll error on slot %d, TFD: %04x\n", 1681 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1682 et = AHCI_ERR_TFE; 1683 break; 1684 } 1685 /* Workaround for ATI SB600/SB700 chipsets. */ 1686 if (ccb->ccb_h.target_id == 15 && 1687 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1688 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1689 et = AHCI_ERR_TIMEOUT; 1690 break; 1691 } 1692 } 1693 if (timeout && (count >= timeout)) { 1694 device_printf(ch->dev, 1695 "Poll timeout on slot %d\n", slot->slot); 1696 device_printf(dev, "is %08x cs %08x ss %08x " 1697 "rs %08x tfd %02x serr %08x\n", 1698 ATA_INL(ch->r_mem, AHCI_P_IS), 1699 ATA_INL(ch->r_mem, AHCI_P_CI), 1700 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1701 ATA_INL(ch->r_mem, AHCI_P_TFD), 1702 ATA_INL(ch->r_mem, AHCI_P_SERR)); 1703 et = AHCI_ERR_TIMEOUT; 1704 } 1705 /* Marvell controllers do not wait for readyness. */ 1706 if ((ch->quirks & AHCI_Q_NOBSYRES) && 1707 (ccb->ccb_h.func_code == XPT_ATA_IO) && 1708 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1709 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1710 while ((val = fis[2]) & (ATA_S_BUSY | ATA_S_DRQ)) { 1711 DELAY(1000); 1712 if (count++ >= timeout) { 1713 device_printf(dev, "device is not " 1714 "ready after soft-reset: " 1715 "tfd = %08x\n", val); 1716 et = AHCI_ERR_TIMEOUT; 1717 break; 1718 } 1719 } 1720 } 1721 ahci_end_transaction(slot, et); 1722 /* Kick controller into sane state and enable FBS. */ 1723 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1724 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1725 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 1726 ahci_stop(ch->dev); 1727 ahci_start(ch->dev, 1); 1728 } 1729 return; 1730 } 1731 /* Start command execution timeout */ 1732 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1733 (timeout_t*)ahci_timeout, slot); 1734 return; 1735 } 1736 1737 /* Must be called with channel locked. */ 1738 static void 1739 ahci_process_timeout(device_t dev) 1740 { 1741 struct ahci_channel *ch = device_get_softc(dev); 1742 int i; 1743 1744 mtx_assert(&ch->mtx, MA_OWNED); 1745 /* Handle the rest of commands. */ 1746 for (i = 0; i < ch->numslots; i++) { 1747 /* Do we have a running request on slot? */ 1748 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1749 continue; 1750 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1751 } 1752 } 1753 1754 /* Must be called with channel locked. */ 1755 static void 1756 ahci_rearm_timeout(device_t dev) 1757 { 1758 struct ahci_channel *ch = device_get_softc(dev); 1759 int i; 1760 1761 mtx_assert(&ch->mtx, MA_OWNED); 1762 for (i = 0; i < ch->numslots; i++) { 1763 struct ahci_slot *slot = &ch->slot[i]; 1764 1765 /* Do we have a running request on slot? */ 1766 if (slot->state < AHCI_SLOT_RUNNING) 1767 continue; 1768 if ((ch->toslots & (1 << i)) == 0) 1769 continue; 1770 callout_reset(&slot->timeout, 1771 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1772 (timeout_t*)ahci_timeout, slot); 1773 } 1774 } 1775 1776 /* Locked by callout mechanism. */ 1777 static void 1778 ahci_timeout(struct ahci_slot *slot) 1779 { 1780 device_t dev = slot->dev; 1781 struct ahci_channel *ch = device_get_softc(dev); 1782 uint32_t sstatus; 1783 int ccs; 1784 int i; 1785 1786 /* Check for stale timeout. */ 1787 if (slot->state < AHCI_SLOT_RUNNING) 1788 return; 1789 1790 /* Check if slot was not being executed last time we checked. */ 1791 if (slot->state < AHCI_SLOT_EXECUTING) { 1792 /* Check if slot started executing. */ 1793 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1794 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1795 >> AHCI_P_CMD_CCS_SHIFT; 1796 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1797 ch->fbs_enabled) 1798 slot->state = AHCI_SLOT_EXECUTING; 1799 1800 callout_reset(&slot->timeout, 1801 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1802 (timeout_t*)ahci_timeout, slot); 1803 return; 1804 } 1805 1806 device_printf(dev, "Timeout on slot %d\n", slot->slot); 1807 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x\n", 1808 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1809 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1810 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR)); 1811 1812 /* Handle frozen command. */ 1813 if (ch->frozen) { 1814 union ccb *fccb = ch->frozen; 1815 ch->frozen = NULL; 1816 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1817 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1818 xpt_freeze_devq(fccb->ccb_h.path, 1); 1819 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1820 } 1821 xpt_done(fccb); 1822 } 1823 if (!ch->fbs_enabled) { 1824 /* Without FBS we know real timeout source. */ 1825 ch->fatalerr = 1; 1826 /* Handle command with timeout. */ 1827 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 1828 /* Handle the rest of commands. */ 1829 for (i = 0; i < ch->numslots; i++) { 1830 /* Do we have a running request on slot? */ 1831 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1832 continue; 1833 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 1834 } 1835 } else { 1836 /* With FBS we wait for other commands timeout and pray. */ 1837 if (ch->toslots == 0) 1838 xpt_freeze_simq(ch->sim, 1); 1839 ch->toslots |= (1 << slot->slot); 1840 if ((ch->rslots & ~ch->toslots) == 0) 1841 ahci_process_timeout(dev); 1842 else 1843 device_printf(dev, " ... waiting for slots %08x\n", 1844 ch->rslots & ~ch->toslots); 1845 } 1846 } 1847 1848 /* Must be called with channel locked. */ 1849 static void 1850 ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 1851 { 1852 device_t dev = slot->dev; 1853 struct ahci_channel *ch = device_get_softc(dev); 1854 union ccb *ccb = slot->ccb; 1855 1856 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1857 BUS_DMASYNC_POSTWRITE); 1858 /* Read result registers to the result struct 1859 * May be incorrect if several commands finished same time, 1860 * so read only when sure or have to. 1861 */ 1862 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 1863 struct ata_res *res = &ccb->ataio.res; 1864 1865 if ((et == AHCI_ERR_TFE) || 1866 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 1867 u_int8_t *fis = ch->dma.rfis + 0x40; 1868 1869 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1870 BUS_DMASYNC_POSTREAD); 1871 if (ch->fbs_enabled) { 1872 fis += ccb->ccb_h.target_id * 256; 1873 res->status = fis[2]; 1874 res->error = fis[3]; 1875 } else { 1876 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 1877 1878 res->status = tfd; 1879 res->error = tfd >> 8; 1880 } 1881 res->lba_low = fis[4]; 1882 res->lba_mid = fis[5]; 1883 res->lba_high = fis[6]; 1884 res->device = fis[7]; 1885 res->lba_low_exp = fis[8]; 1886 res->lba_mid_exp = fis[9]; 1887 res->lba_high_exp = fis[10]; 1888 res->sector_count = fis[12]; 1889 res->sector_count_exp = fis[13]; 1890 } else 1891 bzero(res, sizeof(*res)); 1892 } 1893 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1894 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1895 (ccb->ccb_h.flags & CAM_DIR_IN) ? 1896 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1897 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 1898 } 1899 if (et != AHCI_ERR_NONE) 1900 ch->eslots |= (1 << slot->slot); 1901 /* In case of error, freeze device for proper recovery. */ 1902 if ((et != AHCI_ERR_NONE) && (!ch->readlog) && 1903 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 1904 xpt_freeze_devq(ccb->ccb_h.path, 1); 1905 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1906 } 1907 /* Set proper result status. */ 1908 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1909 switch (et) { 1910 case AHCI_ERR_NONE: 1911 ccb->ccb_h.status |= CAM_REQ_CMP; 1912 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 1913 ccb->csio.scsi_status = SCSI_STATUS_OK; 1914 break; 1915 case AHCI_ERR_INVALID: 1916 ch->fatalerr = 1; 1917 ccb->ccb_h.status |= CAM_REQ_INVALID; 1918 break; 1919 case AHCI_ERR_INNOCENT: 1920 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 1921 break; 1922 case AHCI_ERR_TFE: 1923 case AHCI_ERR_NCQ: 1924 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1925 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1926 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1927 } else { 1928 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 1929 } 1930 break; 1931 case AHCI_ERR_SATA: 1932 ch->fatalerr = 1; 1933 if (!ch->readlog) { 1934 xpt_freeze_simq(ch->sim, 1); 1935 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1936 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1937 } 1938 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 1939 break; 1940 case AHCI_ERR_TIMEOUT: 1941 if (!ch->readlog) { 1942 xpt_freeze_simq(ch->sim, 1); 1943 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1944 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1945 } 1946 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 1947 break; 1948 default: 1949 ch->fatalerr = 1; 1950 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 1951 } 1952 /* Free slot. */ 1953 ch->oslots &= ~(1 << slot->slot); 1954 ch->rslots &= ~(1 << slot->slot); 1955 ch->aslots &= ~(1 << slot->slot); 1956 if (et != AHCI_ERR_TIMEOUT) { 1957 if (ch->toslots == (1 << slot->slot)) 1958 xpt_release_simq(ch->sim, TRUE); 1959 ch->toslots &= ~(1 << slot->slot); 1960 } 1961 slot->state = AHCI_SLOT_EMPTY; 1962 slot->ccb = NULL; 1963 /* Update channel stats. */ 1964 ch->numrslots--; 1965 ch->numrslotspd[ccb->ccb_h.target_id]--; 1966 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1967 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1968 ch->numtslots--; 1969 ch->numtslotspd[ccb->ccb_h.target_id]--; 1970 } 1971 /* If it was first request of reset sequence and there is no error, 1972 * proceed to second request. */ 1973 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1974 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 1975 (ccb->ataio.cmd.control & ATA_A_RESET) && 1976 et == AHCI_ERR_NONE) { 1977 ccb->ataio.cmd.control &= ~ATA_A_RESET; 1978 ahci_begin_transaction(dev, ccb); 1979 return; 1980 } 1981 /* If it was our READ LOG command - process it. */ 1982 if (ch->readlog) { 1983 ahci_process_read_log(dev, ccb); 1984 /* If it was NCQ command error, put result on hold. */ 1985 } else if (et == AHCI_ERR_NCQ) { 1986 ch->hold[slot->slot] = ccb; 1987 ch->numhslots++; 1988 } else 1989 xpt_done(ccb); 1990 /* Unfreeze frozen command. */ 1991 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 1992 union ccb *fccb = ch->frozen; 1993 ch->frozen = NULL; 1994 ahci_begin_transaction(dev, fccb); 1995 xpt_release_simq(ch->sim, TRUE); 1996 } 1997 /* If we have no other active commands, ... */ 1998 if (ch->rslots == 0) { 1999 /* if there was fatal error - reset port. */ 2000 if (ch->toslots != 0 || ch->fatalerr) { 2001 ahci_reset(dev); 2002 } else { 2003 /* if we have slots in error, we can reinit port. */ 2004 if (ch->eslots != 0) { 2005 ahci_stop(dev); 2006 ahci_start(dev, 1); 2007 } 2008 /* if there commands on hold, we can do READ LOG. */ 2009 if (!ch->readlog && ch->numhslots) 2010 ahci_issue_read_log(dev); 2011 } 2012 /* If all the rest of commands are in timeout - give them chance. */ 2013 } else if ((ch->rslots & ~ch->toslots) == 0 && 2014 et != AHCI_ERR_TIMEOUT) 2015 ahci_rearm_timeout(dev); 2016 /* Start PM timer. */ 2017 if (ch->numrslots == 0 && ch->pm_level > 3 && 2018 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2019 callout_schedule(&ch->pm_timer, 2020 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2021 } 2022 } 2023 2024 static void 2025 ahci_issue_read_log(device_t dev) 2026 { 2027 struct ahci_channel *ch = device_get_softc(dev); 2028 union ccb *ccb; 2029 struct ccb_ataio *ataio; 2030 int i; 2031 2032 ch->readlog = 1; 2033 /* Find some holden command. */ 2034 for (i = 0; i < ch->numslots; i++) { 2035 if (ch->hold[i]) 2036 break; 2037 } 2038 ccb = xpt_alloc_ccb_nowait(); 2039 if (ccb == NULL) { 2040 device_printf(dev, "Unable allocate READ LOG command"); 2041 return; /* XXX */ 2042 } 2043 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2044 ccb->ccb_h.func_code = XPT_ATA_IO; 2045 ccb->ccb_h.flags = CAM_DIR_IN; 2046 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2047 ataio = &ccb->ataio; 2048 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2049 if (ataio->data_ptr == NULL) { 2050 xpt_free_ccb(ccb); 2051 device_printf(dev, "Unable allocate memory for READ LOG command"); 2052 return; /* XXX */ 2053 } 2054 ataio->dxfer_len = 512; 2055 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2056 ataio->cmd.flags = CAM_ATAIO_48BIT; 2057 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2058 ataio->cmd.sector_count = 1; 2059 ataio->cmd.sector_count_exp = 0; 2060 ataio->cmd.lba_low = 0x10; 2061 ataio->cmd.lba_mid = 0; 2062 ataio->cmd.lba_mid_exp = 0; 2063 /* Freeze SIM while doing READ LOG EXT. */ 2064 xpt_freeze_simq(ch->sim, 1); 2065 ahci_begin_transaction(dev, ccb); 2066 } 2067 2068 static void 2069 ahci_process_read_log(device_t dev, union ccb *ccb) 2070 { 2071 struct ahci_channel *ch = device_get_softc(dev); 2072 uint8_t *data; 2073 struct ata_res *res; 2074 int i; 2075 2076 ch->readlog = 0; 2077 2078 data = ccb->ataio.data_ptr; 2079 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2080 (data[0] & 0x80) == 0) { 2081 for (i = 0; i < ch->numslots; i++) { 2082 if (!ch->hold[i]) 2083 continue; 2084 if ((data[0] & 0x1F) == i) { 2085 res = &ch->hold[i]->ataio.res; 2086 res->status = data[2]; 2087 res->error = data[3]; 2088 res->lba_low = data[4]; 2089 res->lba_mid = data[5]; 2090 res->lba_high = data[6]; 2091 res->device = data[7]; 2092 res->lba_low_exp = data[8]; 2093 res->lba_mid_exp = data[9]; 2094 res->lba_high_exp = data[10]; 2095 res->sector_count = data[12]; 2096 res->sector_count_exp = data[13]; 2097 } else { 2098 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2099 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2100 } 2101 xpt_done(ch->hold[i]); 2102 ch->hold[i] = NULL; 2103 ch->numhslots--; 2104 } 2105 } else { 2106 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2107 device_printf(dev, "Error while READ LOG EXT\n"); 2108 else if ((data[0] & 0x80) == 0) { 2109 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2110 } 2111 for (i = 0; i < ch->numslots; i++) { 2112 if (!ch->hold[i]) 2113 continue; 2114 xpt_done(ch->hold[i]); 2115 ch->hold[i] = NULL; 2116 ch->numhslots--; 2117 } 2118 } 2119 free(ccb->ataio.data_ptr, M_AHCI); 2120 xpt_free_ccb(ccb); 2121 xpt_release_simq(ch->sim, TRUE); 2122 } 2123 2124 static void 2125 ahci_start(device_t dev, int fbs) 2126 { 2127 struct ahci_channel *ch = device_get_softc(dev); 2128 u_int32_t cmd; 2129 2130 /* Clear SATA error register */ 2131 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2132 /* Clear any interrupts pending on this channel */ 2133 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2134 /* Configure FIS-based switching if supported. */ 2135 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2136 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2137 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2138 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2139 } 2140 /* Start operations on this channel */ 2141 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2142 cmd &= ~AHCI_P_CMD_PMA; 2143 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2144 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2145 } 2146 2147 static void 2148 ahci_stop(device_t dev) 2149 { 2150 struct ahci_channel *ch = device_get_softc(dev); 2151 u_int32_t cmd; 2152 int timeout; 2153 2154 /* Kill all activity on this channel */ 2155 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2156 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2157 /* Wait for activity stop. */ 2158 timeout = 0; 2159 do { 2160 DELAY(1000); 2161 if (timeout++ > 1000) { 2162 device_printf(dev, "stopping AHCI engine failed\n"); 2163 break; 2164 } 2165 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2166 ch->eslots = 0; 2167 } 2168 2169 static void 2170 ahci_clo(device_t dev) 2171 { 2172 struct ahci_channel *ch = device_get_softc(dev); 2173 u_int32_t cmd; 2174 int timeout; 2175 2176 /* Issue Command List Override if supported */ 2177 if (ch->caps & AHCI_CAP_SCLO) { 2178 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2179 cmd |= AHCI_P_CMD_CLO; 2180 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2181 timeout = 0; 2182 do { 2183 DELAY(1000); 2184 if (timeout++ > 1000) { 2185 device_printf(dev, "executing CLO failed\n"); 2186 break; 2187 } 2188 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2189 } 2190 } 2191 2192 static void 2193 ahci_stop_fr(device_t dev) 2194 { 2195 struct ahci_channel *ch = device_get_softc(dev); 2196 u_int32_t cmd; 2197 int timeout; 2198 2199 /* Kill all FIS reception on this channel */ 2200 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2201 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2202 /* Wait for FIS reception stop. */ 2203 timeout = 0; 2204 do { 2205 DELAY(1000); 2206 if (timeout++ > 1000) { 2207 device_printf(dev, "stopping AHCI FR engine failed\n"); 2208 break; 2209 } 2210 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2211 } 2212 2213 static void 2214 ahci_start_fr(device_t dev) 2215 { 2216 struct ahci_channel *ch = device_get_softc(dev); 2217 u_int32_t cmd; 2218 2219 /* Start FIS reception on this channel */ 2220 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2221 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2222 } 2223 2224 static int 2225 ahci_wait_ready(device_t dev, int t) 2226 { 2227 struct ahci_channel *ch = device_get_softc(dev); 2228 int timeout = 0; 2229 uint32_t val; 2230 2231 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2232 (ATA_S_BUSY | ATA_S_DRQ)) { 2233 DELAY(1000); 2234 if (timeout++ > t) { 2235 device_printf(dev, "device is not ready (timeout %dms) " 2236 "tfd = %08x\n", t, val); 2237 return (EBUSY); 2238 } 2239 } 2240 if (bootverbose) 2241 device_printf(dev, "ready wait time=%dms\n", timeout); 2242 return (0); 2243 } 2244 2245 static void 2246 ahci_reset(device_t dev) 2247 { 2248 struct ahci_channel *ch = device_get_softc(dev); 2249 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2250 int i; 2251 2252 xpt_freeze_simq(ch->sim, 1); 2253 if (bootverbose) 2254 device_printf(dev, "AHCI reset...\n"); 2255 /* Requeue freezed command. */ 2256 if (ch->frozen) { 2257 union ccb *fccb = ch->frozen; 2258 ch->frozen = NULL; 2259 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2260 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2261 xpt_freeze_devq(fccb->ccb_h.path, 1); 2262 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2263 } 2264 xpt_done(fccb); 2265 } 2266 /* Kill the engine and requeue all running commands. */ 2267 ahci_stop(dev); 2268 for (i = 0; i < ch->numslots; i++) { 2269 /* Do we have a running request on slot? */ 2270 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2271 continue; 2272 /* XXX; Commands in loading state. */ 2273 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2274 } 2275 for (i = 0; i < ch->numslots; i++) { 2276 if (!ch->hold[i]) 2277 continue; 2278 xpt_done(ch->hold[i]); 2279 ch->hold[i] = NULL; 2280 ch->numhslots--; 2281 } 2282 if (ch->toslots != 0) 2283 xpt_release_simq(ch->sim, TRUE); 2284 ch->eslots = 0; 2285 ch->toslots = 0; 2286 ch->fatalerr = 0; 2287 /* Tell the XPT about the event */ 2288 xpt_async(AC_BUS_RESET, ch->path, NULL); 2289 /* Disable port interrupts */ 2290 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2291 /* Reset and reconnect PHY, */ 2292 if (!ahci_sata_phy_reset(dev)) { 2293 if (bootverbose) 2294 device_printf(dev, 2295 "AHCI reset done: phy reset found no device\n"); 2296 ch->devices = 0; 2297 /* Enable wanted port interrupts */ 2298 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2299 (AHCI_P_IX_CPD | AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2300 xpt_release_simq(ch->sim, TRUE); 2301 return; 2302 } 2303 /* Wait for clearing busy status. */ 2304 if (ahci_wait_ready(dev, 15000)) 2305 ahci_clo(dev); 2306 ahci_start(dev, 1); 2307 ch->devices = 1; 2308 /* Enable wanted port interrupts */ 2309 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2310 (AHCI_P_IX_CPD | AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2311 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2312 ((ch->pm_level == 0) ? AHCI_P_IX_PRC | AHCI_P_IX_PC : 0) | 2313 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2314 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2315 if (bootverbose) 2316 device_printf(dev, "AHCI reset done: device found\n"); 2317 xpt_release_simq(ch->sim, TRUE); 2318 } 2319 2320 static int 2321 ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2322 { 2323 struct ahci_channel *ch = device_get_softc(dev); 2324 u_int8_t *fis = &ctp->cfis[0]; 2325 2326 bzero(ctp->cfis, 64); 2327 fis[0] = 0x27; /* host to device */ 2328 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2329 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2330 fis[1] |= 0x80; 2331 fis[2] = ATA_PACKET_CMD; 2332 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2333 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2334 fis[3] = ATA_F_DMA; 2335 else { 2336 fis[5] = ccb->csio.dxfer_len; 2337 fis[6] = ccb->csio.dxfer_len >> 8; 2338 } 2339 fis[7] = ATA_D_LBA; 2340 fis[15] = ATA_A_4BIT; 2341 bzero(ctp->acmd, 32); 2342 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2343 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2344 ctp->acmd, ccb->csio.cdb_len); 2345 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2346 fis[1] |= 0x80; 2347 fis[2] = ccb->ataio.cmd.command; 2348 fis[3] = ccb->ataio.cmd.features; 2349 fis[4] = ccb->ataio.cmd.lba_low; 2350 fis[5] = ccb->ataio.cmd.lba_mid; 2351 fis[6] = ccb->ataio.cmd.lba_high; 2352 fis[7] = ccb->ataio.cmd.device; 2353 fis[8] = ccb->ataio.cmd.lba_low_exp; 2354 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2355 fis[10] = ccb->ataio.cmd.lba_high_exp; 2356 fis[11] = ccb->ataio.cmd.features_exp; 2357 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2358 fis[12] = tag << 3; 2359 fis[13] = 0; 2360 } else { 2361 fis[12] = ccb->ataio.cmd.sector_count; 2362 fis[13] = ccb->ataio.cmd.sector_count_exp; 2363 } 2364 fis[15] = ATA_A_4BIT; 2365 } else { 2366 fis[15] = ccb->ataio.cmd.control; 2367 } 2368 return (20); 2369 } 2370 2371 static int 2372 ahci_sata_connect(struct ahci_channel *ch) 2373 { 2374 u_int32_t status; 2375 int timeout; 2376 2377 /* Wait up to 100ms for "connect well" */ 2378 for (timeout = 0; timeout < 100 ; timeout++) { 2379 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2380 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2381 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2382 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2383 break; 2384 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2385 if (bootverbose) { 2386 device_printf(ch->dev, "SATA offline status=%08x\n", 2387 status); 2388 } 2389 return (0); 2390 } 2391 DELAY(1000); 2392 } 2393 if (timeout >= 100) { 2394 if (bootverbose) { 2395 device_printf(ch->dev, "SATA connect timeout status=%08x\n", 2396 status); 2397 } 2398 return (0); 2399 } 2400 if (bootverbose) { 2401 device_printf(ch->dev, "SATA connect time=%dms status=%08x\n", 2402 timeout, status); 2403 } 2404 /* Clear SATA error register */ 2405 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2406 return (1); 2407 } 2408 2409 static int 2410 ahci_sata_phy_reset(device_t dev) 2411 { 2412 struct ahci_channel *ch = device_get_softc(dev); 2413 int sata_rev; 2414 uint32_t val; 2415 2416 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2417 if (sata_rev == 1) 2418 val = ATA_SC_SPD_SPEED_GEN1; 2419 else if (sata_rev == 2) 2420 val = ATA_SC_SPD_SPEED_GEN2; 2421 else if (sata_rev == 3) 2422 val = ATA_SC_SPD_SPEED_GEN3; 2423 else 2424 val = 0; 2425 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2426 ATA_SC_DET_RESET | val | 2427 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2428 DELAY(5000); 2429 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2430 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2431 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2432 DELAY(5000); 2433 if (!ahci_sata_connect(ch)) { 2434 if (ch->pm_level > 0) 2435 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2436 return (0); 2437 } 2438 return (1); 2439 } 2440 2441 static int 2442 ahci_check_ids(device_t dev, union ccb *ccb) 2443 { 2444 struct ahci_channel *ch = device_get_softc(dev); 2445 2446 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2447 ccb->ccb_h.status = CAM_TID_INVALID; 2448 xpt_done(ccb); 2449 return (-1); 2450 } 2451 if (ccb->ccb_h.target_lun != 0) { 2452 ccb->ccb_h.status = CAM_LUN_INVALID; 2453 xpt_done(ccb); 2454 return (-1); 2455 } 2456 return (0); 2457 } 2458 2459 static void 2460 ahciaction(struct cam_sim *sim, union ccb *ccb) 2461 { 2462 device_t dev, parent; 2463 struct ahci_channel *ch; 2464 2465 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2466 ccb->ccb_h.func_code)); 2467 2468 ch = (struct ahci_channel *)cam_sim_softc(sim); 2469 dev = ch->dev; 2470 switch (ccb->ccb_h.func_code) { 2471 /* Common cases first */ 2472 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2473 case XPT_SCSI_IO: 2474 if (ahci_check_ids(dev, ccb)) 2475 return; 2476 if (ch->devices == 0 || 2477 (ch->pm_present == 0 && 2478 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2479 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2480 break; 2481 } 2482 /* Check for command collision. */ 2483 if (ahci_check_collision(dev, ccb)) { 2484 /* Freeze command. */ 2485 ch->frozen = ccb; 2486 /* We have only one frozen slot, so freeze simq also. */ 2487 xpt_freeze_simq(ch->sim, 1); 2488 return; 2489 } 2490 ahci_begin_transaction(dev, ccb); 2491 return; 2492 case XPT_EN_LUN: /* Enable LUN as a target */ 2493 case XPT_TARGET_IO: /* Execute target I/O request */ 2494 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2495 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2496 case XPT_ABORT: /* Abort the specified CCB */ 2497 /* XXX Implement */ 2498 ccb->ccb_h.status = CAM_REQ_INVALID; 2499 break; 2500 case XPT_SET_TRAN_SETTINGS: 2501 { 2502 struct ccb_trans_settings *cts = &ccb->cts; 2503 struct ahci_device *d; 2504 2505 if (ahci_check_ids(dev, ccb)) 2506 return; 2507 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2508 d = &ch->curr[ccb->ccb_h.target_id]; 2509 else 2510 d = &ch->user[ccb->ccb_h.target_id]; 2511 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2512 d->revision = cts->xport_specific.sata.revision; 2513 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2514 d->mode = cts->xport_specific.sata.mode; 2515 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2516 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2517 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2518 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2519 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2520 ch->pm_present = cts->xport_specific.sata.pm_present; 2521 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2522 d->atapi = cts->xport_specific.sata.atapi; 2523 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2524 d->caps = cts->xport_specific.sata.caps; 2525 ccb->ccb_h.status = CAM_REQ_CMP; 2526 break; 2527 } 2528 case XPT_GET_TRAN_SETTINGS: 2529 /* Get default/user set transfer settings for the target */ 2530 { 2531 struct ccb_trans_settings *cts = &ccb->cts; 2532 struct ahci_device *d; 2533 uint32_t status; 2534 2535 if (ahci_check_ids(dev, ccb)) 2536 return; 2537 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2538 d = &ch->curr[ccb->ccb_h.target_id]; 2539 else 2540 d = &ch->user[ccb->ccb_h.target_id]; 2541 cts->protocol = PROTO_ATA; 2542 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2543 cts->transport = XPORT_SATA; 2544 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2545 cts->proto_specific.valid = 0; 2546 cts->xport_specific.sata.valid = 0; 2547 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2548 (ccb->ccb_h.target_id == 15 || 2549 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2550 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2551 if (status & 0x0f0) { 2552 cts->xport_specific.sata.revision = 2553 (status & 0x0f0) >> 4; 2554 cts->xport_specific.sata.valid |= 2555 CTS_SATA_VALID_REVISION; 2556 } 2557 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2558 if (ch->pm_level) { 2559 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2560 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2561 if (ch->caps2 & AHCI_CAP2_APST) 2562 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2563 } 2564 if ((ch->caps & AHCI_CAP_SNCQ) && 2565 (ch->quirks & AHCI_Q_NOAA) == 0) 2566 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2567 cts->xport_specific.sata.caps &= 2568 ch->user[ccb->ccb_h.target_id].caps; 2569 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2570 } else { 2571 cts->xport_specific.sata.revision = d->revision; 2572 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2573 cts->xport_specific.sata.caps = d->caps; 2574 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2575 } 2576 cts->xport_specific.sata.mode = d->mode; 2577 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2578 cts->xport_specific.sata.bytecount = d->bytecount; 2579 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2580 cts->xport_specific.sata.pm_present = ch->pm_present; 2581 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2582 cts->xport_specific.sata.tags = d->tags; 2583 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2584 cts->xport_specific.sata.atapi = d->atapi; 2585 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2586 ccb->ccb_h.status = CAM_REQ_CMP; 2587 break; 2588 } 2589 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2590 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2591 ahci_reset(dev); 2592 ccb->ccb_h.status = CAM_REQ_CMP; 2593 break; 2594 case XPT_TERM_IO: /* Terminate the I/O process */ 2595 /* XXX Implement */ 2596 ccb->ccb_h.status = CAM_REQ_INVALID; 2597 break; 2598 case XPT_PATH_INQ: /* Path routing inquiry */ 2599 { 2600 struct ccb_pathinq *cpi = &ccb->cpi; 2601 2602 parent = device_get_parent(dev); 2603 cpi->version_num = 1; /* XXX??? */ 2604 cpi->hba_inquiry = PI_SDTR_ABLE; 2605 if (ch->caps & AHCI_CAP_SNCQ) 2606 cpi->hba_inquiry |= PI_TAG_ABLE; 2607 if (ch->caps & AHCI_CAP_SPM) 2608 cpi->hba_inquiry |= PI_SATAPM; 2609 cpi->target_sprt = 0; 2610 cpi->hba_misc = PIM_SEQSCAN; 2611 cpi->hba_eng_cnt = 0; 2612 if (ch->caps & AHCI_CAP_SPM) 2613 cpi->max_target = 15; 2614 else 2615 cpi->max_target = 0; 2616 cpi->max_lun = 0; 2617 cpi->initiator_id = 0; 2618 cpi->bus_id = cam_sim_bus(sim); 2619 cpi->base_transfer_speed = 150000; 2620 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2621 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2622 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2623 cpi->unit_number = cam_sim_unit(sim); 2624 cpi->transport = XPORT_SATA; 2625 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2626 cpi->protocol = PROTO_ATA; 2627 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2628 cpi->maxio = MAXPHYS; 2629 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2630 if (pci_get_devid(parent) == 0x43801002) 2631 cpi->maxio = min(cpi->maxio, 128 * 512); 2632 cpi->hba_vendor = pci_get_vendor(parent); 2633 cpi->hba_device = pci_get_device(parent); 2634 cpi->hba_subvendor = pci_get_subvendor(parent); 2635 cpi->hba_subdevice = pci_get_subdevice(parent); 2636 cpi->ccb_h.status = CAM_REQ_CMP; 2637 break; 2638 } 2639 default: 2640 ccb->ccb_h.status = CAM_REQ_INVALID; 2641 break; 2642 } 2643 xpt_done(ccb); 2644 } 2645 2646 static void 2647 ahcipoll(struct cam_sim *sim) 2648 { 2649 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 2650 2651 ahci_ch_intr(ch->dev); 2652 } 2653