1 /*- 2 * Copyright (c) 2009-2012 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/conf.h> 36 #include <sys/endian.h> 37 #include <sys/malloc.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <machine/stdarg.h> 41 #include <machine/resource.h> 42 #include <machine/bus.h> 43 #include <sys/rman.h> 44 #include <dev/pci/pcivar.h> 45 #include <dev/pci/pcireg.h> 46 #include "ahci.h" 47 48 #include <cam/cam.h> 49 #include <cam/cam_ccb.h> 50 #include <cam/cam_sim.h> 51 #include <cam/cam_xpt_sim.h> 52 #include <cam/cam_debug.h> 53 54 /* local prototypes */ 55 static int ahci_setup_interrupt(device_t dev); 56 static void ahci_intr(void *data); 57 static void ahci_intr_one(void *data); 58 static int ahci_suspend(device_t dev); 59 static int ahci_resume(device_t dev); 60 static int ahci_ch_init(device_t dev); 61 static int ahci_ch_deinit(device_t dev); 62 static int ahci_ch_suspend(device_t dev); 63 static int ahci_ch_resume(device_t dev); 64 static void ahci_ch_pm(void *arg); 65 static void ahci_ch_intr_locked(void *data); 66 static void ahci_ch_intr(void *data); 67 static int ahci_ctlr_reset(device_t dev); 68 static int ahci_ctlr_setup(device_t dev); 69 static void ahci_begin_transaction(device_t dev, union ccb *ccb); 70 static void ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error); 71 static void ahci_execute_transaction(struct ahci_slot *slot); 72 static void ahci_timeout(struct ahci_slot *slot); 73 static void ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et); 74 static int ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag); 75 static void ahci_dmainit(device_t dev); 76 static void ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 77 static void ahci_dmafini(device_t dev); 78 static void ahci_slotsalloc(device_t dev); 79 static void ahci_slotsfree(device_t dev); 80 static void ahci_reset(device_t dev); 81 static void ahci_start(device_t dev, int fbs); 82 static void ahci_stop(device_t dev); 83 static void ahci_clo(device_t dev); 84 static void ahci_start_fr(device_t dev); 85 static void ahci_stop_fr(device_t dev); 86 87 static int ahci_sata_connect(struct ahci_channel *ch); 88 static int ahci_sata_phy_reset(device_t dev); 89 static int ahci_wait_ready(device_t dev, int t, int t0); 90 91 static void ahci_issue_recovery(device_t dev); 92 static void ahci_process_read_log(device_t dev, union ccb *ccb); 93 static void ahci_process_request_sense(device_t dev, union ccb *ccb); 94 95 static void ahciaction(struct cam_sim *sim, union ccb *ccb); 96 static void ahcipoll(struct cam_sim *sim); 97 98 static MALLOC_DEFINE(M_AHCI, "AHCI driver", "AHCI driver data buffers"); 99 100 static struct { 101 uint32_t id; 102 uint8_t rev; 103 const char *name; 104 int quirks; 105 #define AHCI_Q_NOFORCE 1 106 #define AHCI_Q_NOPMP 2 107 #define AHCI_Q_NONCQ 4 108 #define AHCI_Q_1CH 8 109 #define AHCI_Q_2CH 16 110 #define AHCI_Q_4CH 32 111 #define AHCI_Q_EDGEIS 64 112 #define AHCI_Q_SATA2 128 113 #define AHCI_Q_NOBSYRES 256 114 #define AHCI_Q_NOAA 512 115 #define AHCI_Q_NOCOUNT 1024 116 #define AHCI_Q_ALTSIG 2048 117 #define AHCI_Q_NOMSI 4096 118 119 #define AHCI_Q_BIT_STRING \ 120 "\020" \ 121 "\001NOFORCE" \ 122 "\002NOPMP" \ 123 "\003NONCQ" \ 124 "\0041CH" \ 125 "\0052CH" \ 126 "\0064CH" \ 127 "\007EDGEIS" \ 128 "\010SATA2" \ 129 "\011NOBSYRES" \ 130 "\012NOAA" \ 131 "\013NOCOUNT" \ 132 "\014ALTSIG" \ 133 "\015NOMSI" 134 } ahci_ids[] = { 135 {0x43801002, 0x00, "ATI IXP600", AHCI_Q_NOMSI}, 136 {0x43901002, 0x00, "ATI IXP700", 0}, 137 {0x43911002, 0x00, "ATI IXP700", 0}, 138 {0x43921002, 0x00, "ATI IXP700", 0}, 139 {0x43931002, 0x00, "ATI IXP700", 0}, 140 {0x43941002, 0x00, "ATI IXP800", 0}, 141 {0x43951002, 0x00, "ATI IXP800", 0}, 142 {0x78001022, 0x00, "AMD Hudson-2", 0}, 143 {0x78011022, 0x00, "AMD Hudson-2", 0}, 144 {0x78021022, 0x00, "AMD Hudson-2", 0}, 145 {0x78031022, 0x00, "AMD Hudson-2", 0}, 146 {0x78041022, 0x00, "AMD Hudson-2", 0}, 147 {0x06121b21, 0x00, "ASMedia ASM1061", 0}, 148 {0x26528086, 0x00, "Intel ICH6", AHCI_Q_NOFORCE}, 149 {0x26538086, 0x00, "Intel ICH6M", AHCI_Q_NOFORCE}, 150 {0x26818086, 0x00, "Intel ESB2", 0}, 151 {0x26828086, 0x00, "Intel ESB2", 0}, 152 {0x26838086, 0x00, "Intel ESB2", 0}, 153 {0x27c18086, 0x00, "Intel ICH7", 0}, 154 {0x27c38086, 0x00, "Intel ICH7", 0}, 155 {0x27c58086, 0x00, "Intel ICH7M", 0}, 156 {0x27c68086, 0x00, "Intel ICH7M", 0}, 157 {0x28218086, 0x00, "Intel ICH8", 0}, 158 {0x28228086, 0x00, "Intel ICH8", 0}, 159 {0x28248086, 0x00, "Intel ICH8", 0}, 160 {0x28298086, 0x00, "Intel ICH8M", 0}, 161 {0x282a8086, 0x00, "Intel ICH8M", 0}, 162 {0x29228086, 0x00, "Intel ICH9", 0}, 163 {0x29238086, 0x00, "Intel ICH9", 0}, 164 {0x29248086, 0x00, "Intel ICH9", 0}, 165 {0x29258086, 0x00, "Intel ICH9", 0}, 166 {0x29278086, 0x00, "Intel ICH9", 0}, 167 {0x29298086, 0x00, "Intel ICH9M", 0}, 168 {0x292a8086, 0x00, "Intel ICH9M", 0}, 169 {0x292b8086, 0x00, "Intel ICH9M", 0}, 170 {0x292c8086, 0x00, "Intel ICH9M", 0}, 171 {0x292f8086, 0x00, "Intel ICH9M", 0}, 172 {0x294d8086, 0x00, "Intel ICH9", 0}, 173 {0x294e8086, 0x00, "Intel ICH9M", 0}, 174 {0x3a058086, 0x00, "Intel ICH10", 0}, 175 {0x3a228086, 0x00, "Intel ICH10", 0}, 176 {0x3a258086, 0x00, "Intel ICH10", 0}, 177 {0x3b228086, 0x00, "Intel 5 Series/3400 Series", 0}, 178 {0x3b238086, 0x00, "Intel 5 Series/3400 Series", 0}, 179 {0x3b258086, 0x00, "Intel 5 Series/3400 Series", 0}, 180 {0x3b298086, 0x00, "Intel 5 Series/3400 Series", 0}, 181 {0x3b2c8086, 0x00, "Intel 5 Series/3400 Series", 0}, 182 {0x3b2f8086, 0x00, "Intel 5 Series/3400 Series", 0}, 183 {0x1c028086, 0x00, "Intel Cougar Point", 0}, 184 {0x1c038086, 0x00, "Intel Cougar Point", 0}, 185 {0x1c048086, 0x00, "Intel Cougar Point", 0}, 186 {0x1c058086, 0x00, "Intel Cougar Point", 0}, 187 {0x1d028086, 0x00, "Intel Patsburg", 0}, 188 {0x1d048086, 0x00, "Intel Patsburg", 0}, 189 {0x1d068086, 0x00, "Intel Patsburg", 0}, 190 {0x28268086, 0x00, "Intel Patsburg (RAID)", 0}, 191 {0x1e028086, 0x00, "Intel Panther Point", 0}, 192 {0x1e038086, 0x00, "Intel Panther Point", 0}, 193 {0x1e048086, 0x00, "Intel Panther Point", 0}, 194 {0x1e058086, 0x00, "Intel Panther Point", 0}, 195 {0x1e068086, 0x00, "Intel Panther Point", 0}, 196 {0x1e078086, 0x00, "Intel Panther Point", 0}, 197 {0x1e0e8086, 0x00, "Intel Panther Point", 0}, 198 {0x1e0f8086, 0x00, "Intel Panther Point", 0}, 199 {0x23a38086, 0x00, "Intel Coleto Creek", 0}, 200 {0x8c028086, 0x00, "Intel Lynx Point", 0}, 201 {0x8c038086, 0x00, "Intel Lynx Point", 0}, 202 {0x8c048086, 0x00, "Intel Lynx Point", 0}, 203 {0x8c058086, 0x00, "Intel Lynx Point", 0}, 204 {0x8c068086, 0x00, "Intel Lynx Point", 0}, 205 {0x8c078086, 0x00, "Intel Lynx Point", 0}, 206 {0x8c0e8086, 0x00, "Intel Lynx Point", 0}, 207 {0x8c0f8086, 0x00, "Intel Lynx Point", 0}, 208 {0x23238086, 0x00, "Intel DH89xxCC", 0}, 209 {0x2360197b, 0x00, "JMicron JMB360", 0}, 210 {0x2361197b, 0x00, "JMicron JMB361", AHCI_Q_NOFORCE}, 211 {0x2362197b, 0x00, "JMicron JMB362", 0}, 212 {0x2363197b, 0x00, "JMicron JMB363", AHCI_Q_NOFORCE}, 213 {0x2365197b, 0x00, "JMicron JMB365", AHCI_Q_NOFORCE}, 214 {0x2366197b, 0x00, "JMicron JMB366", AHCI_Q_NOFORCE}, 215 {0x2368197b, 0x00, "JMicron JMB368", AHCI_Q_NOFORCE}, 216 {0x611111ab, 0x00, "Marvell 88SE6111", AHCI_Q_NOFORCE | AHCI_Q_1CH | 217 AHCI_Q_EDGEIS}, 218 {0x612111ab, 0x00, "Marvell 88SE6121", AHCI_Q_NOFORCE | AHCI_Q_2CH | 219 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 220 {0x614111ab, 0x00, "Marvell 88SE6141", AHCI_Q_NOFORCE | AHCI_Q_4CH | 221 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 222 {0x614511ab, 0x00, "Marvell 88SE6145", AHCI_Q_NOFORCE | AHCI_Q_4CH | 223 AHCI_Q_EDGEIS | AHCI_Q_NONCQ | AHCI_Q_NOCOUNT}, 224 {0x91201b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_NOBSYRES}, 225 {0x91231b4b, 0x11, "Marvell 88SE912x", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 226 {0x91231b4b, 0x00, "Marvell 88SE912x", AHCI_Q_EDGEIS|AHCI_Q_SATA2|AHCI_Q_NOBSYRES}, 227 {0x91251b4b, 0x00, "Marvell 88SE9125", AHCI_Q_NOBSYRES}, 228 {0x91281b4b, 0x00, "Marvell 88SE9128", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 229 {0x91301b4b, 0x00, "Marvell 88SE9130", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 230 {0x91721b4b, 0x00, "Marvell 88SE9172", AHCI_Q_NOBSYRES}, 231 {0x91821b4b, 0x00, "Marvell 88SE9182", AHCI_Q_NOBSYRES}, 232 {0x91a01b4b, 0x00, "Marvell 88SE91Ax", AHCI_Q_NOBSYRES}, 233 {0x92151b4b, 0x00, "Marvell 88SE9215", AHCI_Q_NOBSYRES}, 234 {0x92201b4b, 0x00, "Marvell 88SE9220", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 235 {0x92301b4b, 0x00, "Marvell 88SE9230", AHCI_Q_NOBSYRES|AHCI_Q_ALTSIG}, 236 {0x92351b4b, 0x00, "Marvell 88SE9235", AHCI_Q_NOBSYRES}, 237 {0x06201103, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 238 {0x06201b4b, 0x00, "HighPoint RocketRAID 620", AHCI_Q_NOBSYRES}, 239 {0x06221103, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 240 {0x06221b4b, 0x00, "HighPoint RocketRAID 622", AHCI_Q_NOBSYRES}, 241 {0x06401103, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 242 {0x06401b4b, 0x00, "HighPoint RocketRAID 640", AHCI_Q_NOBSYRES}, 243 {0x06441103, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 244 {0x06441b4b, 0x00, "HighPoint RocketRAID 644", AHCI_Q_NOBSYRES}, 245 {0x06411103, 0x00, "HighPoint RocketRAID 640L", AHCI_Q_NOBSYRES}, 246 {0x06421103, 0x00, "HighPoint RocketRAID 642L", AHCI_Q_NOBSYRES}, 247 {0x06451103, 0x00, "HighPoint RocketRAID 644L", AHCI_Q_NOBSYRES}, 248 {0x044c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 249 {0x044d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 250 {0x044e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 251 {0x044f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 252 {0x045c10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 253 {0x045d10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 254 {0x045e10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 255 {0x045f10de, 0x00, "NVIDIA MCP65", AHCI_Q_NOAA}, 256 {0x055010de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 257 {0x055110de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 258 {0x055210de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 259 {0x055310de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 260 {0x055410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 261 {0x055510de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 262 {0x055610de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 263 {0x055710de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 264 {0x055810de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 265 {0x055910de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 266 {0x055A10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 267 {0x055B10de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 268 {0x058410de, 0x00, "NVIDIA MCP67", AHCI_Q_NOAA}, 269 {0x07f010de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 270 {0x07f110de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 271 {0x07f210de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 272 {0x07f310de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 273 {0x07f410de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 274 {0x07f510de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 275 {0x07f610de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 276 {0x07f710de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 277 {0x07f810de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 278 {0x07f910de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 279 {0x07fa10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 280 {0x07fb10de, 0x00, "NVIDIA MCP73", AHCI_Q_NOAA}, 281 {0x0ad010de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 282 {0x0ad110de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 283 {0x0ad210de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 284 {0x0ad310de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 285 {0x0ad410de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 286 {0x0ad510de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 287 {0x0ad610de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 288 {0x0ad710de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 289 {0x0ad810de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 290 {0x0ad910de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 291 {0x0ada10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 292 {0x0adb10de, 0x00, "NVIDIA MCP77", AHCI_Q_NOAA}, 293 {0x0ab410de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 294 {0x0ab510de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 295 {0x0ab610de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 296 {0x0ab710de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 297 {0x0ab810de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 298 {0x0ab910de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 299 {0x0aba10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 300 {0x0abb10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 301 {0x0abc10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 302 {0x0abd10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 303 {0x0abe10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 304 {0x0abf10de, 0x00, "NVIDIA MCP79", AHCI_Q_NOAA}, 305 {0x0d8410de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 306 {0x0d8510de, 0x00, "NVIDIA MCP89", AHCI_Q_NOFORCE|AHCI_Q_NOAA}, 307 {0x0d8610de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 308 {0x0d8710de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 309 {0x0d8810de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 310 {0x0d8910de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 311 {0x0d8a10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 312 {0x0d8b10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 313 {0x0d8c10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 314 {0x0d8d10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 315 {0x0d8e10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 316 {0x0d8f10de, 0x00, "NVIDIA MCP89", AHCI_Q_NOAA}, 317 {0x33491106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 318 {0x62871106, 0x00, "VIA VT8251", AHCI_Q_NOPMP|AHCI_Q_NONCQ}, 319 {0x11841039, 0x00, "SiS 966", 0}, 320 {0x11851039, 0x00, "SiS 968", 0}, 321 {0x01861039, 0x00, "SiS 968", 0}, 322 {0x00000000, 0x00, NULL, 0} 323 }; 324 325 #define recovery_type spriv_field0 326 #define RECOVERY_NONE 0 327 #define RECOVERY_READ_LOG 1 328 #define RECOVERY_REQUEST_SENSE 2 329 #define recovery_slot spriv_field1 330 331 static int force_ahci = 1; 332 TUNABLE_INT("hw.ahci.force", &force_ahci); 333 334 static int 335 ahci_probe(device_t dev) 336 { 337 char buf[64]; 338 int i, valid = 0; 339 uint32_t devid = pci_get_devid(dev); 340 uint8_t revid = pci_get_revid(dev); 341 342 /* Is this a possible AHCI candidate? */ 343 if (pci_get_class(dev) == PCIC_STORAGE && 344 pci_get_subclass(dev) == PCIS_STORAGE_SATA && 345 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) 346 valid = 1; 347 /* Is this a known AHCI chip? */ 348 for (i = 0; ahci_ids[i].id != 0; i++) { 349 if (ahci_ids[i].id == devid && 350 ahci_ids[i].rev <= revid && 351 (valid || (force_ahci == 1 && 352 !(ahci_ids[i].quirks & AHCI_Q_NOFORCE)))) { 353 /* Do not attach JMicrons with single PCI function. */ 354 if (pci_get_vendor(dev) == 0x197b && 355 (pci_read_config(dev, 0xdf, 1) & 0x40) == 0) 356 return (ENXIO); 357 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 358 ahci_ids[i].name); 359 device_set_desc_copy(dev, buf); 360 return (BUS_PROBE_VENDOR); 361 } 362 } 363 if (!valid) 364 return (ENXIO); 365 device_set_desc_copy(dev, "AHCI SATA controller"); 366 return (BUS_PROBE_VENDOR); 367 } 368 369 static int 370 ahci_ata_probe(device_t dev) 371 { 372 char buf[64]; 373 int i; 374 uint32_t devid = pci_get_devid(dev); 375 uint8_t revid = pci_get_revid(dev); 376 377 if ((intptr_t)device_get_ivars(dev) >= 0) 378 return (ENXIO); 379 /* Is this a known AHCI chip? */ 380 for (i = 0; ahci_ids[i].id != 0; i++) { 381 if (ahci_ids[i].id == devid && 382 ahci_ids[i].rev <= revid) { 383 snprintf(buf, sizeof(buf), "%s AHCI SATA controller", 384 ahci_ids[i].name); 385 device_set_desc_copy(dev, buf); 386 return (BUS_PROBE_VENDOR); 387 } 388 } 389 device_set_desc_copy(dev, "AHCI SATA controller"); 390 return (BUS_PROBE_VENDOR); 391 } 392 393 static int 394 ahci_attach(device_t dev) 395 { 396 struct ahci_controller *ctlr = device_get_softc(dev); 397 device_t child; 398 int error, unit, speed, i; 399 uint32_t devid = pci_get_devid(dev); 400 uint8_t revid = pci_get_revid(dev); 401 u_int32_t version; 402 403 ctlr->dev = dev; 404 i = 0; 405 while (ahci_ids[i].id != 0 && 406 (ahci_ids[i].id != devid || 407 ahci_ids[i].rev > revid)) 408 i++; 409 ctlr->quirks = ahci_ids[i].quirks; 410 resource_int_value(device_get_name(dev), 411 device_get_unit(dev), "ccc", &ctlr->ccc); 412 /* if we have a memory BAR(5) we are likely on an AHCI part */ 413 ctlr->r_rid = PCIR_BAR(5); 414 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 415 &ctlr->r_rid, RF_ACTIVE))) 416 return ENXIO; 417 /* Setup our own memory management for channels. */ 418 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem); 419 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem); 420 ctlr->sc_iomem.rm_type = RMAN_ARRAY; 421 ctlr->sc_iomem.rm_descr = "I/O memory addresses"; 422 if ((error = rman_init(&ctlr->sc_iomem)) != 0) { 423 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 424 return (error); 425 } 426 if ((error = rman_manage_region(&ctlr->sc_iomem, 427 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) { 428 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 429 rman_fini(&ctlr->sc_iomem); 430 return (error); 431 } 432 pci_enable_busmaster(dev); 433 /* Reset controller */ 434 if ((error = ahci_ctlr_reset(dev)) != 0) { 435 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 436 rman_fini(&ctlr->sc_iomem); 437 return (error); 438 }; 439 /* Get the HW capabilities */ 440 version = ATA_INL(ctlr->r_mem, AHCI_VS); 441 ctlr->caps = ATA_INL(ctlr->r_mem, AHCI_CAP); 442 if (version >= 0x00010200) 443 ctlr->caps2 = ATA_INL(ctlr->r_mem, AHCI_CAP2); 444 if (ctlr->caps & AHCI_CAP_EMS) 445 ctlr->capsem = ATA_INL(ctlr->r_mem, AHCI_EM_CTL); 446 ctlr->ichannels = ATA_INL(ctlr->r_mem, AHCI_PI); 447 448 /* Identify and set separate quirks for HBA and RAID f/w Marvells. */ 449 if ((ctlr->quirks & AHCI_Q_NOBSYRES) && 450 (ctlr->quirks & AHCI_Q_ALTSIG) && 451 (ctlr->caps & AHCI_CAP_SPM) == 0) 452 ctlr->quirks &= ~AHCI_Q_NOBSYRES; 453 454 if (ctlr->quirks & AHCI_Q_1CH) { 455 ctlr->caps &= ~AHCI_CAP_NPMASK; 456 ctlr->ichannels &= 0x01; 457 } 458 if (ctlr->quirks & AHCI_Q_2CH) { 459 ctlr->caps &= ~AHCI_CAP_NPMASK; 460 ctlr->caps |= 1; 461 ctlr->ichannels &= 0x03; 462 } 463 if (ctlr->quirks & AHCI_Q_4CH) { 464 ctlr->caps &= ~AHCI_CAP_NPMASK; 465 ctlr->caps |= 3; 466 ctlr->ichannels &= 0x0f; 467 } 468 ctlr->channels = MAX(flsl(ctlr->ichannels), 469 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 470 if (ctlr->quirks & AHCI_Q_NOPMP) 471 ctlr->caps &= ~AHCI_CAP_SPM; 472 if (ctlr->quirks & AHCI_Q_NONCQ) 473 ctlr->caps &= ~AHCI_CAP_SNCQ; 474 if ((ctlr->caps & AHCI_CAP_CCCS) == 0) 475 ctlr->ccc = 0; 476 ctlr->emloc = ATA_INL(ctlr->r_mem, AHCI_EM_LOC); 477 478 /* Create controller-wide DMA tag. */ 479 if (bus_dma_tag_create(bus_get_dma_tag(dev), 0, 0, 480 (ctlr->caps & AHCI_CAP_64BIT) ? BUS_SPACE_MAXADDR : 481 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 482 BUS_SPACE_MAXSIZE, BUS_SPACE_UNRESTRICTED, BUS_SPACE_MAXSIZE, 483 0, NULL, NULL, &ctlr->dma_tag)) { 484 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, 485 ctlr->r_mem); 486 rman_fini(&ctlr->sc_iomem); 487 return ENXIO; 488 } 489 490 ahci_ctlr_setup(dev); 491 /* Setup interrupts. */ 492 if (ahci_setup_interrupt(dev)) { 493 bus_dma_tag_destroy(ctlr->dma_tag); 494 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 495 rman_fini(&ctlr->sc_iomem); 496 return ENXIO; 497 } 498 /* Announce HW capabilities. */ 499 speed = (ctlr->caps & AHCI_CAP_ISS) >> AHCI_CAP_ISS_SHIFT; 500 device_printf(dev, 501 "AHCI v%x.%02x with %d %sGbps ports, Port Multiplier %s%s\n", 502 ((version >> 20) & 0xf0) + ((version >> 16) & 0x0f), 503 ((version >> 4) & 0xf0) + (version & 0x0f), 504 (ctlr->caps & AHCI_CAP_NPMASK) + 1, 505 ((speed == 1) ? "1.5":((speed == 2) ? "3": 506 ((speed == 3) ? "6":"?"))), 507 (ctlr->caps & AHCI_CAP_SPM) ? 508 "supported" : "not supported", 509 (ctlr->caps & AHCI_CAP_FBSS) ? 510 " with FBS" : ""); 511 if (ctlr->quirks != 0) { 512 device_printf(dev, "quirks=0x%b\n", ctlr->quirks, 513 AHCI_Q_BIT_STRING); 514 } 515 if (bootverbose) { 516 device_printf(dev, "Caps:%s%s%s%s%s%s%s%s %sGbps", 517 (ctlr->caps & AHCI_CAP_64BIT) ? " 64bit":"", 518 (ctlr->caps & AHCI_CAP_SNCQ) ? " NCQ":"", 519 (ctlr->caps & AHCI_CAP_SSNTF) ? " SNTF":"", 520 (ctlr->caps & AHCI_CAP_SMPS) ? " MPS":"", 521 (ctlr->caps & AHCI_CAP_SSS) ? " SS":"", 522 (ctlr->caps & AHCI_CAP_SALP) ? " ALP":"", 523 (ctlr->caps & AHCI_CAP_SAL) ? " AL":"", 524 (ctlr->caps & AHCI_CAP_SCLO) ? " CLO":"", 525 ((speed == 1) ? "1.5":((speed == 2) ? "3": 526 ((speed == 3) ? "6":"?")))); 527 printf("%s%s%s%s%s%s %dcmd%s%s%s %dports\n", 528 (ctlr->caps & AHCI_CAP_SAM) ? " AM":"", 529 (ctlr->caps & AHCI_CAP_SPM) ? " PM":"", 530 (ctlr->caps & AHCI_CAP_FBSS) ? " FBS":"", 531 (ctlr->caps & AHCI_CAP_PMD) ? " PMD":"", 532 (ctlr->caps & AHCI_CAP_SSC) ? " SSC":"", 533 (ctlr->caps & AHCI_CAP_PSC) ? " PSC":"", 534 ((ctlr->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1, 535 (ctlr->caps & AHCI_CAP_CCCS) ? " CCC":"", 536 (ctlr->caps & AHCI_CAP_EMS) ? " EM":"", 537 (ctlr->caps & AHCI_CAP_SXS) ? " eSATA":"", 538 (ctlr->caps & AHCI_CAP_NPMASK) + 1); 539 } 540 if (bootverbose && version >= 0x00010200) { 541 device_printf(dev, "Caps2:%s%s%s%s%s%s\n", 542 (ctlr->caps2 & AHCI_CAP2_DESO) ? " DESO":"", 543 (ctlr->caps2 & AHCI_CAP2_SADM) ? " SADM":"", 544 (ctlr->caps2 & AHCI_CAP2_SDS) ? " SDS":"", 545 (ctlr->caps2 & AHCI_CAP2_APST) ? " APST":"", 546 (ctlr->caps2 & AHCI_CAP2_NVMP) ? " NVMP":"", 547 (ctlr->caps2 & AHCI_CAP2_BOH) ? " BOH":""); 548 } 549 /* Attach all channels on this controller */ 550 for (unit = 0; unit < ctlr->channels; unit++) { 551 child = device_add_child(dev, "ahcich", -1); 552 if (child == NULL) { 553 device_printf(dev, "failed to add channel device\n"); 554 continue; 555 } 556 device_set_ivars(child, (void *)(intptr_t)unit); 557 if ((ctlr->ichannels & (1 << unit)) == 0) 558 device_disable(child); 559 } 560 if (ctlr->caps & AHCI_CAP_EMS) { 561 child = device_add_child(dev, "ahciem", -1); 562 if (child == NULL) 563 device_printf(dev, "failed to add enclosure device\n"); 564 else 565 device_set_ivars(child, (void *)(intptr_t)-1); 566 } 567 bus_generic_attach(dev); 568 return 0; 569 } 570 571 static int 572 ahci_detach(device_t dev) 573 { 574 struct ahci_controller *ctlr = device_get_softc(dev); 575 int i; 576 577 /* Detach & delete all children */ 578 device_delete_children(dev); 579 580 /* Free interrupts. */ 581 for (i = 0; i < ctlr->numirqs; i++) { 582 if (ctlr->irqs[i].r_irq) { 583 bus_teardown_intr(dev, ctlr->irqs[i].r_irq, 584 ctlr->irqs[i].handle); 585 bus_release_resource(dev, SYS_RES_IRQ, 586 ctlr->irqs[i].r_irq_rid, ctlr->irqs[i].r_irq); 587 } 588 } 589 pci_release_msi(dev); 590 bus_dma_tag_destroy(ctlr->dma_tag); 591 /* Free memory. */ 592 rman_fini(&ctlr->sc_iomem); 593 if (ctlr->r_mem) 594 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); 595 return (0); 596 } 597 598 static int 599 ahci_ctlr_reset(device_t dev) 600 { 601 struct ahci_controller *ctlr = device_get_softc(dev); 602 int timeout; 603 604 if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == 0x28298086 && 605 (pci_read_config(dev, 0x92, 1) & 0xfe) == 0x04) 606 pci_write_config(dev, 0x92, 0x01, 1); 607 /* Enable AHCI mode */ 608 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 609 /* Reset AHCI controller */ 610 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE|AHCI_GHC_HR); 611 for (timeout = 1000; timeout > 0; timeout--) { 612 DELAY(1000); 613 if ((ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_HR) == 0) 614 break; 615 } 616 if (timeout == 0) { 617 device_printf(dev, "AHCI controller reset failure\n"); 618 return ENXIO; 619 } 620 /* Reenable AHCI mode */ 621 ATA_OUTL(ctlr->r_mem, AHCI_GHC, AHCI_GHC_AE); 622 return (0); 623 } 624 625 static int 626 ahci_ctlr_setup(device_t dev) 627 { 628 struct ahci_controller *ctlr = device_get_softc(dev); 629 /* Clear interrupts */ 630 ATA_OUTL(ctlr->r_mem, AHCI_IS, ATA_INL(ctlr->r_mem, AHCI_IS)); 631 /* Configure CCC */ 632 if (ctlr->ccc) { 633 ATA_OUTL(ctlr->r_mem, AHCI_CCCP, ATA_INL(ctlr->r_mem, AHCI_PI)); 634 ATA_OUTL(ctlr->r_mem, AHCI_CCCC, 635 (ctlr->ccc << AHCI_CCCC_TV_SHIFT) | 636 (4 << AHCI_CCCC_CC_SHIFT) | 637 AHCI_CCCC_EN); 638 ctlr->cccv = (ATA_INL(ctlr->r_mem, AHCI_CCCC) & 639 AHCI_CCCC_INT_MASK) >> AHCI_CCCC_INT_SHIFT; 640 if (bootverbose) { 641 device_printf(dev, 642 "CCC with %dms/4cmd enabled on vector %d\n", 643 ctlr->ccc, ctlr->cccv); 644 } 645 } 646 /* Enable AHCI interrupts */ 647 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 648 ATA_INL(ctlr->r_mem, AHCI_GHC) | AHCI_GHC_IE); 649 return (0); 650 } 651 652 static int 653 ahci_suspend(device_t dev) 654 { 655 struct ahci_controller *ctlr = device_get_softc(dev); 656 657 bus_generic_suspend(dev); 658 /* Disable interupts, so the state change(s) doesn't trigger */ 659 ATA_OUTL(ctlr->r_mem, AHCI_GHC, 660 ATA_INL(ctlr->r_mem, AHCI_GHC) & (~AHCI_GHC_IE)); 661 return 0; 662 } 663 664 static int 665 ahci_resume(device_t dev) 666 { 667 int res; 668 669 if ((res = ahci_ctlr_reset(dev)) != 0) 670 return (res); 671 ahci_ctlr_setup(dev); 672 return (bus_generic_resume(dev)); 673 } 674 675 static int 676 ahci_setup_interrupt(device_t dev) 677 { 678 struct ahci_controller *ctlr = device_get_softc(dev); 679 int i, msi = 1; 680 681 /* Process hints. */ 682 if (ctlr->quirks & AHCI_Q_NOMSI) 683 msi = 0; 684 resource_int_value(device_get_name(dev), 685 device_get_unit(dev), "msi", &msi); 686 if (msi < 0) 687 msi = 0; 688 else if (msi == 1) 689 msi = min(1, pci_msi_count(dev)); 690 else if (msi > 1) 691 msi = pci_msi_count(dev); 692 /* Allocate MSI if needed/present. */ 693 if (msi && pci_alloc_msi(dev, &msi) == 0) { 694 ctlr->numirqs = msi; 695 } else { 696 msi = 0; 697 ctlr->numirqs = 1; 698 } 699 /* Check for single MSI vector fallback. */ 700 if (ctlr->numirqs > 1 && 701 (ATA_INL(ctlr->r_mem, AHCI_GHC) & AHCI_GHC_MRSM) != 0) { 702 device_printf(dev, "Falling back to one MSI\n"); 703 ctlr->numirqs = 1; 704 } 705 /* Allocate all IRQs. */ 706 for (i = 0; i < ctlr->numirqs; i++) { 707 ctlr->irqs[i].ctlr = ctlr; 708 ctlr->irqs[i].r_irq_rid = i + (msi ? 1 : 0); 709 if (ctlr->numirqs == 1 || i >= ctlr->channels || 710 (ctlr->ccc && i == ctlr->cccv)) 711 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ALL; 712 else if (i == ctlr->numirqs - 1) 713 ctlr->irqs[i].mode = AHCI_IRQ_MODE_AFTER; 714 else 715 ctlr->irqs[i].mode = AHCI_IRQ_MODE_ONE; 716 if (!(ctlr->irqs[i].r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 717 &ctlr->irqs[i].r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 718 device_printf(dev, "unable to map interrupt\n"); 719 return ENXIO; 720 } 721 if ((bus_setup_intr(dev, ctlr->irqs[i].r_irq, ATA_INTR_FLAGS, NULL, 722 (ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE) ? ahci_intr_one : ahci_intr, 723 &ctlr->irqs[i], &ctlr->irqs[i].handle))) { 724 /* SOS XXX release r_irq */ 725 device_printf(dev, "unable to setup interrupt\n"); 726 return ENXIO; 727 } 728 if (ctlr->numirqs > 1) { 729 bus_describe_intr(dev, ctlr->irqs[i].r_irq, 730 ctlr->irqs[i].handle, 731 ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? 732 "ch%d" : "%d", i); 733 } 734 } 735 return (0); 736 } 737 738 /* 739 * Common case interrupt handler. 740 */ 741 static void 742 ahci_intr(void *data) 743 { 744 struct ahci_controller_irq *irq = data; 745 struct ahci_controller *ctlr = irq->ctlr; 746 u_int32_t is, ise = 0; 747 void *arg; 748 int unit; 749 750 if (irq->mode == AHCI_IRQ_MODE_ALL) { 751 unit = 0; 752 if (ctlr->ccc) 753 is = ctlr->ichannels; 754 else 755 is = ATA_INL(ctlr->r_mem, AHCI_IS); 756 } else { /* AHCI_IRQ_MODE_AFTER */ 757 unit = irq->r_irq_rid - 1; 758 is = ATA_INL(ctlr->r_mem, AHCI_IS); 759 } 760 /* CCC interrupt is edge triggered. */ 761 if (ctlr->ccc) 762 ise = 1 << ctlr->cccv; 763 /* Some controllers have edge triggered IS. */ 764 if (ctlr->quirks & AHCI_Q_EDGEIS) 765 ise |= is; 766 if (ise != 0) 767 ATA_OUTL(ctlr->r_mem, AHCI_IS, ise); 768 for (; unit < ctlr->channels; unit++) { 769 if ((is & (1 << unit)) != 0 && 770 (arg = ctlr->interrupt[unit].argument)) { 771 ctlr->interrupt[unit].function(arg); 772 } 773 } 774 /* AHCI declares level triggered IS. */ 775 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 776 ATA_OUTL(ctlr->r_mem, AHCI_IS, is); 777 } 778 779 /* 780 * Simplified interrupt handler for multivector MSI mode. 781 */ 782 static void 783 ahci_intr_one(void *data) 784 { 785 struct ahci_controller_irq *irq = data; 786 struct ahci_controller *ctlr = irq->ctlr; 787 void *arg; 788 int unit; 789 790 unit = irq->r_irq_rid - 1; 791 /* Some controllers have edge triggered IS. */ 792 if (ctlr->quirks & AHCI_Q_EDGEIS) 793 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 794 if ((arg = ctlr->interrupt[unit].argument)) 795 ctlr->interrupt[unit].function(arg); 796 /* AHCI declares level triggered IS. */ 797 if (!(ctlr->quirks & AHCI_Q_EDGEIS)) 798 ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); 799 } 800 801 static struct resource * 802 ahci_alloc_resource(device_t dev, device_t child, int type, int *rid, 803 u_long start, u_long end, u_long count, u_int flags) 804 { 805 struct ahci_controller *ctlr = device_get_softc(dev); 806 struct resource *res; 807 long st; 808 int offset, size, unit; 809 810 unit = (intptr_t)device_get_ivars(child); 811 res = NULL; 812 switch (type) { 813 case SYS_RES_MEMORY: 814 if (unit >= 0) { 815 offset = AHCI_OFFSET + (unit << 7); 816 size = 128; 817 } else if (*rid == 0) { 818 offset = AHCI_EM_CTL; 819 size = 4; 820 } else { 821 offset = (ctlr->emloc & 0xffff0000) >> 14; 822 size = (ctlr->emloc & 0x0000ffff) << 2; 823 if (*rid != 1) { 824 if (*rid == 2 && (ctlr->capsem & 825 (AHCI_EM_XMT | AHCI_EM_SMB)) == 0) 826 offset += size; 827 else 828 break; 829 } 830 } 831 st = rman_get_start(ctlr->r_mem); 832 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset, 833 st + offset + size - 1, size, RF_ACTIVE, child); 834 if (res) { 835 bus_space_handle_t bsh; 836 bus_space_tag_t bst; 837 bsh = rman_get_bushandle(ctlr->r_mem); 838 bst = rman_get_bustag(ctlr->r_mem); 839 bus_space_subregion(bst, bsh, offset, 128, &bsh); 840 rman_set_bushandle(res, bsh); 841 rman_set_bustag(res, bst); 842 } 843 break; 844 case SYS_RES_IRQ: 845 if (*rid == ATA_IRQ_RID) 846 res = ctlr->irqs[0].r_irq; 847 break; 848 } 849 return (res); 850 } 851 852 static int 853 ahci_release_resource(device_t dev, device_t child, int type, int rid, 854 struct resource *r) 855 { 856 857 switch (type) { 858 case SYS_RES_MEMORY: 859 rman_release_resource(r); 860 return (0); 861 case SYS_RES_IRQ: 862 if (rid != ATA_IRQ_RID) 863 return ENOENT; 864 return (0); 865 } 866 return (EINVAL); 867 } 868 869 static int 870 ahci_setup_intr(device_t dev, device_t child, struct resource *irq, 871 int flags, driver_filter_t *filter, driver_intr_t *function, 872 void *argument, void **cookiep) 873 { 874 struct ahci_controller *ctlr = device_get_softc(dev); 875 int unit = (intptr_t)device_get_ivars(child); 876 877 if (filter != NULL) { 878 printf("ahci.c: we cannot use a filter here\n"); 879 return (EINVAL); 880 } 881 ctlr->interrupt[unit].function = function; 882 ctlr->interrupt[unit].argument = argument; 883 return (0); 884 } 885 886 static int 887 ahci_teardown_intr(device_t dev, device_t child, struct resource *irq, 888 void *cookie) 889 { 890 struct ahci_controller *ctlr = device_get_softc(dev); 891 int unit = (intptr_t)device_get_ivars(child); 892 893 ctlr->interrupt[unit].function = NULL; 894 ctlr->interrupt[unit].argument = NULL; 895 return (0); 896 } 897 898 static int 899 ahci_print_child(device_t dev, device_t child) 900 { 901 int retval, channel; 902 903 retval = bus_print_child_header(dev, child); 904 channel = (int)(intptr_t)device_get_ivars(child); 905 if (channel >= 0) 906 retval += printf(" at channel %d", channel); 907 retval += bus_print_child_footer(dev, child); 908 return (retval); 909 } 910 911 static int 912 ahci_child_location_str(device_t dev, device_t child, char *buf, 913 size_t buflen) 914 { 915 int channel; 916 917 channel = (int)(intptr_t)device_get_ivars(child); 918 if (channel >= 0) 919 snprintf(buf, buflen, "channel=%d", channel); 920 return (0); 921 } 922 923 static bus_dma_tag_t 924 ahci_get_dma_tag(device_t dev, device_t child) 925 { 926 struct ahci_controller *ctlr = device_get_softc(dev); 927 928 return (ctlr->dma_tag); 929 } 930 931 devclass_t ahci_devclass; 932 static device_method_t ahci_methods[] = { 933 DEVMETHOD(device_probe, ahci_probe), 934 DEVMETHOD(device_attach, ahci_attach), 935 DEVMETHOD(device_detach, ahci_detach), 936 DEVMETHOD(device_suspend, ahci_suspend), 937 DEVMETHOD(device_resume, ahci_resume), 938 DEVMETHOD(bus_print_child, ahci_print_child), 939 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 940 DEVMETHOD(bus_release_resource, ahci_release_resource), 941 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 942 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 943 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 944 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), 945 { 0, 0 } 946 }; 947 static driver_t ahci_driver = { 948 "ahci", 949 ahci_methods, 950 sizeof(struct ahci_controller) 951 }; 952 DRIVER_MODULE(ahci, pci, ahci_driver, ahci_devclass, 0, 0); 953 static device_method_t ahci_ata_methods[] = { 954 DEVMETHOD(device_probe, ahci_ata_probe), 955 DEVMETHOD(device_attach, ahci_attach), 956 DEVMETHOD(device_detach, ahci_detach), 957 DEVMETHOD(device_suspend, ahci_suspend), 958 DEVMETHOD(device_resume, ahci_resume), 959 DEVMETHOD(bus_print_child, ahci_print_child), 960 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), 961 DEVMETHOD(bus_release_resource, ahci_release_resource), 962 DEVMETHOD(bus_setup_intr, ahci_setup_intr), 963 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr), 964 DEVMETHOD(bus_child_location_str, ahci_child_location_str), 965 { 0, 0 } 966 }; 967 static driver_t ahci_ata_driver = { 968 "ahci", 969 ahci_ata_methods, 970 sizeof(struct ahci_controller) 971 }; 972 DRIVER_MODULE(ahci, atapci, ahci_ata_driver, ahci_devclass, 0, 0); 973 MODULE_VERSION(ahci, 1); 974 MODULE_DEPEND(ahci, cam, 1, 1, 1); 975 976 static int 977 ahci_ch_probe(device_t dev) 978 { 979 980 device_set_desc_copy(dev, "AHCI channel"); 981 return (0); 982 } 983 984 static int 985 ahci_ch_attach(device_t dev) 986 { 987 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 988 struct ahci_channel *ch = device_get_softc(dev); 989 struct cam_devq *devq; 990 int rid, error, i, sata_rev = 0; 991 u_int32_t version; 992 993 ch->dev = dev; 994 ch->unit = (intptr_t)device_get_ivars(dev); 995 ch->caps = ctlr->caps; 996 ch->caps2 = ctlr->caps2; 997 ch->quirks = ctlr->quirks; 998 ch->numslots = ((ch->caps & AHCI_CAP_NCS) >> AHCI_CAP_NCS_SHIFT) + 1; 999 mtx_init(&ch->mtx, "AHCI channel lock", NULL, MTX_DEF); 1000 resource_int_value(device_get_name(dev), 1001 device_get_unit(dev), "pm_level", &ch->pm_level); 1002 if (ch->pm_level > 3) 1003 callout_init_mtx(&ch->pm_timer, &ch->mtx, 0); 1004 callout_init_mtx(&ch->reset_timer, &ch->mtx, 0); 1005 /* Limit speed for my onboard JMicron external port. 1006 * It is not eSATA really. */ 1007 if (pci_get_devid(ctlr->dev) == 0x2363197b && 1008 pci_get_subvendor(ctlr->dev) == 0x1043 && 1009 pci_get_subdevice(ctlr->dev) == 0x81e4 && 1010 ch->unit == 0) 1011 sata_rev = 1; 1012 if (ch->quirks & AHCI_Q_SATA2) 1013 sata_rev = 2; 1014 resource_int_value(device_get_name(dev), 1015 device_get_unit(dev), "sata_rev", &sata_rev); 1016 for (i = 0; i < 16; i++) { 1017 ch->user[i].revision = sata_rev; 1018 ch->user[i].mode = 0; 1019 ch->user[i].bytecount = 8192; 1020 ch->user[i].tags = ch->numslots; 1021 ch->user[i].caps = 0; 1022 ch->curr[i] = ch->user[i]; 1023 if (ch->pm_level) { 1024 ch->user[i].caps = CTS_SATA_CAPS_H_PMREQ | 1025 CTS_SATA_CAPS_H_APST | 1026 CTS_SATA_CAPS_D_PMREQ | CTS_SATA_CAPS_D_APST; 1027 } 1028 ch->user[i].caps |= CTS_SATA_CAPS_H_DMAAA | 1029 CTS_SATA_CAPS_H_AN; 1030 } 1031 rid = 0; 1032 if (!(ch->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 1033 &rid, RF_ACTIVE))) 1034 return (ENXIO); 1035 ahci_dmainit(dev); 1036 ahci_slotsalloc(dev); 1037 ahci_ch_init(dev); 1038 mtx_lock(&ch->mtx); 1039 rid = ATA_IRQ_RID; 1040 if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 1041 &rid, RF_SHAREABLE | RF_ACTIVE))) { 1042 device_printf(dev, "Unable to map interrupt\n"); 1043 error = ENXIO; 1044 goto err0; 1045 } 1046 if ((bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 1047 ahci_ch_intr_locked, dev, &ch->ih))) { 1048 device_printf(dev, "Unable to setup interrupt\n"); 1049 error = ENXIO; 1050 goto err1; 1051 } 1052 ch->chcaps = ATA_INL(ch->r_mem, AHCI_P_CMD); 1053 version = ATA_INL(ctlr->r_mem, AHCI_VS); 1054 if (version < 0x00010200 && (ctlr->caps & AHCI_CAP_FBSS)) 1055 ch->chcaps |= AHCI_P_CMD_FBSCP; 1056 if (bootverbose) { 1057 device_printf(dev, "Caps:%s%s%s%s%s\n", 1058 (ch->chcaps & AHCI_P_CMD_HPCP) ? " HPCP":"", 1059 (ch->chcaps & AHCI_P_CMD_MPSP) ? " MPSP":"", 1060 (ch->chcaps & AHCI_P_CMD_CPD) ? " CPD":"", 1061 (ch->chcaps & AHCI_P_CMD_ESP) ? " ESP":"", 1062 (ch->chcaps & AHCI_P_CMD_FBSCP) ? " FBSCP":""); 1063 } 1064 /* Create the device queue for our SIM. */ 1065 devq = cam_simq_alloc(ch->numslots); 1066 if (devq == NULL) { 1067 device_printf(dev, "Unable to allocate simq\n"); 1068 error = ENOMEM; 1069 goto err1; 1070 } 1071 /* Construct SIM entry */ 1072 ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch, 1073 device_get_unit(dev), &ch->mtx, 1074 min(2, ch->numslots), 1075 (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0, 1076 devq); 1077 if (ch->sim == NULL) { 1078 cam_simq_free(devq); 1079 device_printf(dev, "unable to allocate sim\n"); 1080 error = ENOMEM; 1081 goto err1; 1082 } 1083 if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) { 1084 device_printf(dev, "unable to register xpt bus\n"); 1085 error = ENXIO; 1086 goto err2; 1087 } 1088 if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim), 1089 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1090 device_printf(dev, "unable to create path\n"); 1091 error = ENXIO; 1092 goto err3; 1093 } 1094 if (ch->pm_level > 3) { 1095 callout_reset(&ch->pm_timer, 1096 (ch->pm_level == 4) ? hz / 1000 : hz / 8, 1097 ahci_ch_pm, dev); 1098 } 1099 mtx_unlock(&ch->mtx); 1100 return (0); 1101 1102 err3: 1103 xpt_bus_deregister(cam_sim_path(ch->sim)); 1104 err2: 1105 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1106 err1: 1107 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1108 err0: 1109 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1110 mtx_unlock(&ch->mtx); 1111 mtx_destroy(&ch->mtx); 1112 return (error); 1113 } 1114 1115 static int 1116 ahci_ch_detach(device_t dev) 1117 { 1118 struct ahci_channel *ch = device_get_softc(dev); 1119 1120 mtx_lock(&ch->mtx); 1121 xpt_async(AC_LOST_DEVICE, ch->path, NULL); 1122 /* Forget about reset. */ 1123 if (ch->resetting) { 1124 ch->resetting = 0; 1125 xpt_release_simq(ch->sim, TRUE); 1126 } 1127 xpt_free_path(ch->path); 1128 xpt_bus_deregister(cam_sim_path(ch->sim)); 1129 cam_sim_free(ch->sim, /*free_devq*/TRUE); 1130 mtx_unlock(&ch->mtx); 1131 1132 if (ch->pm_level > 3) 1133 callout_drain(&ch->pm_timer); 1134 callout_drain(&ch->reset_timer); 1135 bus_teardown_intr(dev, ch->r_irq, ch->ih); 1136 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 1137 1138 ahci_ch_deinit(dev); 1139 ahci_slotsfree(dev); 1140 ahci_dmafini(dev); 1141 1142 bus_release_resource(dev, SYS_RES_MEMORY, ch->unit, ch->r_mem); 1143 mtx_destroy(&ch->mtx); 1144 return (0); 1145 } 1146 1147 static int 1148 ahci_ch_init(device_t dev) 1149 { 1150 struct ahci_channel *ch = device_get_softc(dev); 1151 uint64_t work; 1152 1153 /* Disable port interrupts */ 1154 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1155 /* Setup work areas */ 1156 work = ch->dma.work_bus + AHCI_CL_OFFSET; 1157 ATA_OUTL(ch->r_mem, AHCI_P_CLB, work & 0xffffffff); 1158 ATA_OUTL(ch->r_mem, AHCI_P_CLBU, work >> 32); 1159 work = ch->dma.rfis_bus; 1160 ATA_OUTL(ch->r_mem, AHCI_P_FB, work & 0xffffffff); 1161 ATA_OUTL(ch->r_mem, AHCI_P_FBU, work >> 32); 1162 /* Activate the channel and power/spin up device */ 1163 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 1164 (AHCI_P_CMD_ACTIVE | AHCI_P_CMD_POD | AHCI_P_CMD_SUD | 1165 ((ch->pm_level == 2 || ch->pm_level == 3) ? AHCI_P_CMD_ALPE : 0) | 1166 ((ch->pm_level > 2) ? AHCI_P_CMD_ASP : 0 ))); 1167 ahci_start_fr(dev); 1168 ahci_start(dev, 1); 1169 return (0); 1170 } 1171 1172 static int 1173 ahci_ch_deinit(device_t dev) 1174 { 1175 struct ahci_channel *ch = device_get_softc(dev); 1176 1177 /* Disable port interrupts. */ 1178 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 1179 /* Reset command register. */ 1180 ahci_stop(dev); 1181 ahci_stop_fr(dev); 1182 ATA_OUTL(ch->r_mem, AHCI_P_CMD, 0); 1183 /* Allow everything, including partial and slumber modes. */ 1184 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 0); 1185 /* Request slumber mode transition and give some time to get there. */ 1186 ATA_OUTL(ch->r_mem, AHCI_P_CMD, AHCI_P_CMD_SLUMBER); 1187 DELAY(100); 1188 /* Disable PHY. */ 1189 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 1190 return (0); 1191 } 1192 1193 static int 1194 ahci_ch_suspend(device_t dev) 1195 { 1196 struct ahci_channel *ch = device_get_softc(dev); 1197 1198 mtx_lock(&ch->mtx); 1199 xpt_freeze_simq(ch->sim, 1); 1200 /* Forget about reset. */ 1201 if (ch->resetting) { 1202 ch->resetting = 0; 1203 callout_stop(&ch->reset_timer); 1204 xpt_release_simq(ch->sim, TRUE); 1205 } 1206 while (ch->oslots) 1207 msleep(ch, &ch->mtx, PRIBIO, "ahcisusp", hz/100); 1208 ahci_ch_deinit(dev); 1209 mtx_unlock(&ch->mtx); 1210 return (0); 1211 } 1212 1213 static int 1214 ahci_ch_resume(device_t dev) 1215 { 1216 struct ahci_channel *ch = device_get_softc(dev); 1217 1218 mtx_lock(&ch->mtx); 1219 ahci_ch_init(dev); 1220 ahci_reset(dev); 1221 xpt_release_simq(ch->sim, TRUE); 1222 mtx_unlock(&ch->mtx); 1223 return (0); 1224 } 1225 1226 devclass_t ahcich_devclass; 1227 static device_method_t ahcich_methods[] = { 1228 DEVMETHOD(device_probe, ahci_ch_probe), 1229 DEVMETHOD(device_attach, ahci_ch_attach), 1230 DEVMETHOD(device_detach, ahci_ch_detach), 1231 DEVMETHOD(device_suspend, ahci_ch_suspend), 1232 DEVMETHOD(device_resume, ahci_ch_resume), 1233 { 0, 0 } 1234 }; 1235 static driver_t ahcich_driver = { 1236 "ahcich", 1237 ahcich_methods, 1238 sizeof(struct ahci_channel) 1239 }; 1240 DRIVER_MODULE(ahcich, ahci, ahcich_driver, ahcich_devclass, 0, 0); 1241 1242 struct ahci_dc_cb_args { 1243 bus_addr_t maddr; 1244 int error; 1245 }; 1246 1247 static void 1248 ahci_dmainit(device_t dev) 1249 { 1250 struct ahci_channel *ch = device_get_softc(dev); 1251 struct ahci_dc_cb_args dcba; 1252 size_t rfsize; 1253 1254 /* Command area. */ 1255 if (bus_dma_tag_create(bus_get_dma_tag(dev), 1024, 0, 1256 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 1257 NULL, NULL, AHCI_WORK_SIZE, 1, AHCI_WORK_SIZE, 1258 0, NULL, NULL, &ch->dma.work_tag)) 1259 goto error; 1260 if (bus_dmamem_alloc(ch->dma.work_tag, (void **)&ch->dma.work, 1261 BUS_DMA_ZERO, &ch->dma.work_map)) 1262 goto error; 1263 if (bus_dmamap_load(ch->dma.work_tag, ch->dma.work_map, ch->dma.work, 1264 AHCI_WORK_SIZE, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1265 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1266 goto error; 1267 } 1268 ch->dma.work_bus = dcba.maddr; 1269 /* FIS receive area. */ 1270 if (ch->chcaps & AHCI_P_CMD_FBSCP) 1271 rfsize = 4096; 1272 else 1273 rfsize = 256; 1274 if (bus_dma_tag_create(bus_get_dma_tag(dev), rfsize, 0, 1275 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 1276 NULL, NULL, rfsize, 1, rfsize, 1277 0, NULL, NULL, &ch->dma.rfis_tag)) 1278 goto error; 1279 if (bus_dmamem_alloc(ch->dma.rfis_tag, (void **)&ch->dma.rfis, 0, 1280 &ch->dma.rfis_map)) 1281 goto error; 1282 if (bus_dmamap_load(ch->dma.rfis_tag, ch->dma.rfis_map, ch->dma.rfis, 1283 rfsize, ahci_dmasetupc_cb, &dcba, 0) || dcba.error) { 1284 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1285 goto error; 1286 } 1287 ch->dma.rfis_bus = dcba.maddr; 1288 /* Data area. */ 1289 if (bus_dma_tag_create(bus_get_dma_tag(dev), 2, 0, 1290 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 1291 NULL, NULL, 1292 AHCI_SG_ENTRIES * PAGE_SIZE * ch->numslots, 1293 AHCI_SG_ENTRIES, AHCI_PRD_MAX, 1294 0, busdma_lock_mutex, &ch->mtx, &ch->dma.data_tag)) { 1295 goto error; 1296 } 1297 return; 1298 1299 error: 1300 device_printf(dev, "WARNING - DMA initialization failed\n"); 1301 ahci_dmafini(dev); 1302 } 1303 1304 static void 1305 ahci_dmasetupc_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) 1306 { 1307 struct ahci_dc_cb_args *dcba = (struct ahci_dc_cb_args *)xsc; 1308 1309 if (!(dcba->error = error)) 1310 dcba->maddr = segs[0].ds_addr; 1311 } 1312 1313 static void 1314 ahci_dmafini(device_t dev) 1315 { 1316 struct ahci_channel *ch = device_get_softc(dev); 1317 1318 if (ch->dma.data_tag) { 1319 bus_dma_tag_destroy(ch->dma.data_tag); 1320 ch->dma.data_tag = NULL; 1321 } 1322 if (ch->dma.rfis_bus) { 1323 bus_dmamap_unload(ch->dma.rfis_tag, ch->dma.rfis_map); 1324 bus_dmamem_free(ch->dma.rfis_tag, ch->dma.rfis, ch->dma.rfis_map); 1325 ch->dma.rfis_bus = 0; 1326 ch->dma.rfis_map = NULL; 1327 ch->dma.rfis = NULL; 1328 } 1329 if (ch->dma.work_bus) { 1330 bus_dmamap_unload(ch->dma.work_tag, ch->dma.work_map); 1331 bus_dmamem_free(ch->dma.work_tag, ch->dma.work, ch->dma.work_map); 1332 ch->dma.work_bus = 0; 1333 ch->dma.work_map = NULL; 1334 ch->dma.work = NULL; 1335 } 1336 if (ch->dma.work_tag) { 1337 bus_dma_tag_destroy(ch->dma.work_tag); 1338 ch->dma.work_tag = NULL; 1339 } 1340 } 1341 1342 static void 1343 ahci_slotsalloc(device_t dev) 1344 { 1345 struct ahci_channel *ch = device_get_softc(dev); 1346 int i; 1347 1348 /* Alloc and setup command/dma slots */ 1349 bzero(ch->slot, sizeof(ch->slot)); 1350 for (i = 0; i < ch->numslots; i++) { 1351 struct ahci_slot *slot = &ch->slot[i]; 1352 1353 slot->dev = dev; 1354 slot->slot = i; 1355 slot->state = AHCI_SLOT_EMPTY; 1356 slot->ccb = NULL; 1357 callout_init_mtx(&slot->timeout, &ch->mtx, 0); 1358 1359 if (bus_dmamap_create(ch->dma.data_tag, 0, &slot->dma.data_map)) 1360 device_printf(ch->dev, "FAILURE - create data_map\n"); 1361 } 1362 } 1363 1364 static void 1365 ahci_slotsfree(device_t dev) 1366 { 1367 struct ahci_channel *ch = device_get_softc(dev); 1368 int i; 1369 1370 /* Free all dma slots */ 1371 for (i = 0; i < ch->numslots; i++) { 1372 struct ahci_slot *slot = &ch->slot[i]; 1373 1374 callout_drain(&slot->timeout); 1375 if (slot->dma.data_map) { 1376 bus_dmamap_destroy(ch->dma.data_tag, slot->dma.data_map); 1377 slot->dma.data_map = NULL; 1378 } 1379 } 1380 } 1381 1382 static int 1383 ahci_phy_check_events(device_t dev, u_int32_t serr) 1384 { 1385 struct ahci_channel *ch = device_get_softc(dev); 1386 1387 if (((ch->pm_level == 0) && (serr & ATA_SE_PHY_CHANGED)) || 1388 ((ch->pm_level != 0 || ch->listening) && (serr & ATA_SE_EXCHANGED))) { 1389 u_int32_t status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 1390 union ccb *ccb; 1391 1392 if (bootverbose) { 1393 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 1394 device_printf(dev, "CONNECT requested\n"); 1395 else 1396 device_printf(dev, "DISCONNECT requested\n"); 1397 } 1398 ahci_reset(dev); 1399 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1400 return (0); 1401 if (xpt_create_path(&ccb->ccb_h.path, NULL, 1402 cam_sim_path(ch->sim), 1403 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1404 xpt_free_ccb(ccb); 1405 return (0); 1406 } 1407 xpt_rescan(ccb); 1408 return (1); 1409 } 1410 return (0); 1411 } 1412 1413 static void 1414 ahci_cpd_check_events(device_t dev) 1415 { 1416 struct ahci_channel *ch = device_get_softc(dev); 1417 u_int32_t status; 1418 union ccb *ccb; 1419 1420 if (ch->pm_level == 0) 1421 return; 1422 1423 status = ATA_INL(ch->r_mem, AHCI_P_CMD); 1424 if ((status & AHCI_P_CMD_CPD) == 0) 1425 return; 1426 1427 if (bootverbose) { 1428 if (status & AHCI_P_CMD_CPS) { 1429 device_printf(dev, "COLD CONNECT requested\n"); 1430 } else 1431 device_printf(dev, "COLD DISCONNECT requested\n"); 1432 } 1433 ahci_reset(dev); 1434 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) 1435 return; 1436 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(ch->sim), 1437 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1438 xpt_free_ccb(ccb); 1439 return; 1440 } 1441 xpt_rescan(ccb); 1442 } 1443 1444 static void 1445 ahci_notify_events(device_t dev, u_int32_t status) 1446 { 1447 struct ahci_channel *ch = device_get_softc(dev); 1448 struct cam_path *dpath; 1449 int i; 1450 1451 if (ch->caps & AHCI_CAP_SSNTF) 1452 ATA_OUTL(ch->r_mem, AHCI_P_SNTF, status); 1453 if (bootverbose) 1454 device_printf(dev, "SNTF 0x%04x\n", status); 1455 for (i = 0; i < 16; i++) { 1456 if ((status & (1 << i)) == 0) 1457 continue; 1458 if (xpt_create_path(&dpath, NULL, 1459 xpt_path_path_id(ch->path), i, 0) == CAM_REQ_CMP) { 1460 xpt_async(AC_SCSI_AEN, dpath, NULL); 1461 xpt_free_path(dpath); 1462 } 1463 } 1464 } 1465 1466 static void 1467 ahci_ch_intr_locked(void *data) 1468 { 1469 device_t dev = (device_t)data; 1470 struct ahci_channel *ch = device_get_softc(dev); 1471 1472 mtx_lock(&ch->mtx); 1473 xpt_batch_start(ch->sim); 1474 ahci_ch_intr(data); 1475 xpt_batch_done(ch->sim); 1476 mtx_unlock(&ch->mtx); 1477 } 1478 1479 static void 1480 ahci_ch_pm(void *arg) 1481 { 1482 device_t dev = (device_t)arg; 1483 struct ahci_channel *ch = device_get_softc(dev); 1484 uint32_t work; 1485 1486 if (ch->numrslots != 0) 1487 return; 1488 work = ATA_INL(ch->r_mem, AHCI_P_CMD); 1489 if (ch->pm_level == 4) 1490 work |= AHCI_P_CMD_PARTIAL; 1491 else 1492 work |= AHCI_P_CMD_SLUMBER; 1493 ATA_OUTL(ch->r_mem, AHCI_P_CMD, work); 1494 } 1495 1496 static void 1497 ahci_ch_intr(void *data) 1498 { 1499 device_t dev = (device_t)data; 1500 struct ahci_channel *ch = device_get_softc(dev); 1501 uint32_t istatus, cstatus, serr = 0, sntf = 0, ok, err; 1502 enum ahci_err_type et; 1503 int i, ccs, port, reset = 0; 1504 1505 /* Read and clear interrupt statuses. */ 1506 istatus = ATA_INL(ch->r_mem, AHCI_P_IS); 1507 if (istatus == 0) 1508 return; 1509 ATA_OUTL(ch->r_mem, AHCI_P_IS, istatus); 1510 /* Read command statuses. */ 1511 if (ch->numtslots != 0) 1512 cstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1513 else 1514 cstatus = 0; 1515 if (ch->numrslots != ch->numtslots) 1516 cstatus |= ATA_INL(ch->r_mem, AHCI_P_CI); 1517 /* Read SNTF in one of possible ways. */ 1518 if ((istatus & AHCI_P_IX_SDB) && 1519 (ch->pm_present || ch->curr[0].atapi != 0)) { 1520 if (ch->caps & AHCI_CAP_SSNTF) 1521 sntf = ATA_INL(ch->r_mem, AHCI_P_SNTF); 1522 else if (ch->fbs_enabled) { 1523 u_int8_t *fis = ch->dma.rfis + 0x58; 1524 1525 for (i = 0; i < 16; i++) { 1526 if (fis[1] & 0x80) { 1527 fis[1] &= 0x7f; 1528 sntf |= 1 << i; 1529 } 1530 fis += 256; 1531 } 1532 } else { 1533 u_int8_t *fis = ch->dma.rfis + 0x58; 1534 1535 if (fis[1] & 0x80) 1536 sntf = (1 << (fis[1] & 0x0f)); 1537 } 1538 } 1539 /* Process PHY events */ 1540 if (istatus & (AHCI_P_IX_PC | AHCI_P_IX_PRC | AHCI_P_IX_OF | 1541 AHCI_P_IX_IF | AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1542 serr = ATA_INL(ch->r_mem, AHCI_P_SERR); 1543 if (serr) { 1544 ATA_OUTL(ch->r_mem, AHCI_P_SERR, serr); 1545 reset = ahci_phy_check_events(dev, serr); 1546 } 1547 } 1548 /* Process cold presence detection events */ 1549 if ((istatus & AHCI_P_IX_CPD) && !reset) 1550 ahci_cpd_check_events(dev); 1551 /* Process command errors */ 1552 if (istatus & (AHCI_P_IX_OF | AHCI_P_IX_IF | 1553 AHCI_P_IX_HBD | AHCI_P_IX_HBF | AHCI_P_IX_TFE)) { 1554 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1555 >> AHCI_P_CMD_CCS_SHIFT; 1556 //device_printf(dev, "%s ERROR is %08x cs %08x ss %08x rs %08x tfd %02x serr %08x fbs %08x ccs %d\n", 1557 // __func__, istatus, cstatus, sstatus, ch->rslots, ATA_INL(ch->r_mem, AHCI_P_TFD), 1558 // serr, ATA_INL(ch->r_mem, AHCI_P_FBS), ccs); 1559 port = -1; 1560 if (ch->fbs_enabled) { 1561 uint32_t fbs = ATA_INL(ch->r_mem, AHCI_P_FBS); 1562 if (fbs & AHCI_P_FBS_SDE) { 1563 port = (fbs & AHCI_P_FBS_DWE) 1564 >> AHCI_P_FBS_DWE_SHIFT; 1565 } else { 1566 for (i = 0; i < 16; i++) { 1567 if (ch->numrslotspd[i] == 0) 1568 continue; 1569 if (port == -1) 1570 port = i; 1571 else if (port != i) { 1572 port = -2; 1573 break; 1574 } 1575 } 1576 } 1577 } 1578 err = ch->rslots & cstatus; 1579 } else { 1580 ccs = 0; 1581 err = 0; 1582 port = -1; 1583 } 1584 /* Complete all successfull commands. */ 1585 ok = ch->rslots & ~cstatus; 1586 for (i = 0; i < ch->numslots; i++) { 1587 if ((ok >> i) & 1) 1588 ahci_end_transaction(&ch->slot[i], AHCI_ERR_NONE); 1589 } 1590 /* On error, complete the rest of commands with error statuses. */ 1591 if (err) { 1592 if (ch->frozen) { 1593 union ccb *fccb = ch->frozen; 1594 ch->frozen = NULL; 1595 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 1596 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 1597 xpt_freeze_devq(fccb->ccb_h.path, 1); 1598 fccb->ccb_h.status |= CAM_DEV_QFRZN; 1599 } 1600 xpt_done(fccb); 1601 } 1602 for (i = 0; i < ch->numslots; i++) { 1603 /* XXX: reqests in loading state. */ 1604 if (((err >> i) & 1) == 0) 1605 continue; 1606 if (port >= 0 && 1607 ch->slot[i].ccb->ccb_h.target_id != port) 1608 continue; 1609 if (istatus & AHCI_P_IX_TFE) { 1610 if (port != -2) { 1611 /* Task File Error */ 1612 if (ch->numtslotspd[ 1613 ch->slot[i].ccb->ccb_h.target_id] == 0) { 1614 /* Untagged operation. */ 1615 if (i == ccs) 1616 et = AHCI_ERR_TFE; 1617 else 1618 et = AHCI_ERR_INNOCENT; 1619 } else { 1620 /* Tagged operation. */ 1621 et = AHCI_ERR_NCQ; 1622 } 1623 } else { 1624 et = AHCI_ERR_TFE; 1625 ch->fatalerr = 1; 1626 } 1627 } else if (istatus & AHCI_P_IX_IF) { 1628 if (ch->numtslots == 0 && i != ccs && port != -2) 1629 et = AHCI_ERR_INNOCENT; 1630 else 1631 et = AHCI_ERR_SATA; 1632 } else 1633 et = AHCI_ERR_INVALID; 1634 ahci_end_transaction(&ch->slot[i], et); 1635 } 1636 /* 1637 * We can't reinit port if there are some other 1638 * commands active, use resume to complete them. 1639 */ 1640 if (ch->rslots != 0 && !ch->recoverycmd) 1641 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | AHCI_P_FBS_DEC); 1642 } 1643 /* Process NOTIFY events */ 1644 if (sntf) 1645 ahci_notify_events(dev, sntf); 1646 } 1647 1648 /* Must be called with channel locked. */ 1649 static int 1650 ahci_check_collision(device_t dev, union ccb *ccb) 1651 { 1652 struct ahci_channel *ch = device_get_softc(dev); 1653 int t = ccb->ccb_h.target_id; 1654 1655 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1656 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1657 /* Tagged command while we have no supported tag free. */ 1658 if (((~ch->oslots) & (0xffffffff >> (32 - 1659 ch->curr[t].tags))) == 0) 1660 return (1); 1661 /* If we have FBS */ 1662 if (ch->fbs_enabled) { 1663 /* Tagged command while untagged are active. */ 1664 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] == 0) 1665 return (1); 1666 } else { 1667 /* Tagged command while untagged are active. */ 1668 if (ch->numrslots != 0 && ch->numtslots == 0) 1669 return (1); 1670 /* Tagged command while tagged to other target is active. */ 1671 if (ch->numtslots != 0 && 1672 ch->taggedtarget != ccb->ccb_h.target_id) 1673 return (1); 1674 } 1675 } else { 1676 /* If we have FBS */ 1677 if (ch->fbs_enabled) { 1678 /* Untagged command while tagged are active. */ 1679 if (ch->numrslotspd[t] != 0 && ch->numtslotspd[t] != 0) 1680 return (1); 1681 } else { 1682 /* Untagged command while tagged are active. */ 1683 if (ch->numrslots != 0 && ch->numtslots != 0) 1684 return (1); 1685 } 1686 } 1687 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1688 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) { 1689 /* Atomic command while anything active. */ 1690 if (ch->numrslots != 0) 1691 return (1); 1692 } 1693 /* We have some atomic command running. */ 1694 if (ch->aslots != 0) 1695 return (1); 1696 return (0); 1697 } 1698 1699 /* Must be called with channel locked. */ 1700 static void 1701 ahci_begin_transaction(device_t dev, union ccb *ccb) 1702 { 1703 struct ahci_channel *ch = device_get_softc(dev); 1704 struct ahci_slot *slot; 1705 int tag, tags; 1706 1707 /* Choose empty slot. */ 1708 tags = ch->numslots; 1709 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1710 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) 1711 tags = ch->curr[ccb->ccb_h.target_id].tags; 1712 tag = ch->lastslot; 1713 while (1) { 1714 if (tag >= tags) 1715 tag = 0; 1716 if (ch->slot[tag].state == AHCI_SLOT_EMPTY) 1717 break; 1718 tag++; 1719 }; 1720 ch->lastslot = tag; 1721 /* Occupy chosen slot. */ 1722 slot = &ch->slot[tag]; 1723 slot->ccb = ccb; 1724 /* Stop PM timer. */ 1725 if (ch->numrslots == 0 && ch->pm_level > 3) 1726 callout_stop(&ch->pm_timer); 1727 /* Update channel stats. */ 1728 ch->oslots |= (1 << slot->slot); 1729 ch->numrslots++; 1730 ch->numrslotspd[ccb->ccb_h.target_id]++; 1731 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1732 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1733 ch->numtslots++; 1734 ch->numtslotspd[ccb->ccb_h.target_id]++; 1735 ch->taggedtarget = ccb->ccb_h.target_id; 1736 } 1737 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1738 (ccb->ataio.cmd.flags & (CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT))) 1739 ch->aslots |= (1 << slot->slot); 1740 slot->dma.nsegs = 0; 1741 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1742 slot->state = AHCI_SLOT_LOADING; 1743 bus_dmamap_load_ccb(ch->dma.data_tag, slot->dma.data_map, ccb, 1744 ahci_dmasetprd, slot, 0); 1745 } else 1746 ahci_execute_transaction(slot); 1747 } 1748 1749 /* Locked by busdma engine. */ 1750 static void 1751 ahci_dmasetprd(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1752 { 1753 struct ahci_slot *slot = arg; 1754 struct ahci_channel *ch = device_get_softc(slot->dev); 1755 struct ahci_cmd_tab *ctp; 1756 struct ahci_dma_prd *prd; 1757 int i; 1758 1759 if (error) { 1760 device_printf(slot->dev, "DMA load error\n"); 1761 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1762 return; 1763 } 1764 KASSERT(nsegs <= AHCI_SG_ENTRIES, ("too many DMA segment entries\n")); 1765 /* Get a piece of the workspace for this request */ 1766 ctp = (struct ahci_cmd_tab *) 1767 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1768 /* Fill S/G table */ 1769 prd = &ctp->prd_tab[0]; 1770 for (i = 0; i < nsegs; i++) { 1771 prd[i].dba = htole64(segs[i].ds_addr); 1772 prd[i].dbc = htole32((segs[i].ds_len - 1) & AHCI_PRD_MASK); 1773 } 1774 slot->dma.nsegs = nsegs; 1775 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 1776 ((slot->ccb->ccb_h.flags & CAM_DIR_IN) ? 1777 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE)); 1778 ahci_execute_transaction(slot); 1779 } 1780 1781 /* Must be called with channel locked. */ 1782 static void 1783 ahci_execute_transaction(struct ahci_slot *slot) 1784 { 1785 device_t dev = slot->dev; 1786 struct ahci_channel *ch = device_get_softc(dev); 1787 struct ahci_cmd_tab *ctp; 1788 struct ahci_cmd_list *clp; 1789 union ccb *ccb = slot->ccb; 1790 int port = ccb->ccb_h.target_id & 0x0f; 1791 int fis_size, i, softreset; 1792 uint8_t *fis = ch->dma.rfis + 0x40; 1793 uint8_t val; 1794 1795 /* Get a piece of the workspace for this request */ 1796 ctp = (struct ahci_cmd_tab *) 1797 (ch->dma.work + AHCI_CT_OFFSET + (AHCI_CT_SIZE * slot->slot)); 1798 /* Setup the FIS for this request */ 1799 if (!(fis_size = ahci_setup_fis(dev, ctp, ccb, slot->slot))) { 1800 device_printf(ch->dev, "Setting up SATA FIS failed\n"); 1801 ahci_end_transaction(slot, AHCI_ERR_INVALID); 1802 return; 1803 } 1804 /* Setup the command list entry */ 1805 clp = (struct ahci_cmd_list *) 1806 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 1807 clp->cmd_flags = htole16( 1808 (ccb->ccb_h.flags & CAM_DIR_OUT ? AHCI_CMD_WRITE : 0) | 1809 (ccb->ccb_h.func_code == XPT_SCSI_IO ? 1810 (AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH) : 0) | 1811 (fis_size / sizeof(u_int32_t)) | 1812 (port << 12)); 1813 clp->prd_length = htole16(slot->dma.nsegs); 1814 /* Special handling for Soft Reset command. */ 1815 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1816 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL)) { 1817 if (ccb->ataio.cmd.control & ATA_A_RESET) { 1818 softreset = 1; 1819 /* Kick controller into sane state */ 1820 ahci_stop(dev); 1821 ahci_clo(dev); 1822 ahci_start(dev, 0); 1823 clp->cmd_flags |= AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY; 1824 } else { 1825 softreset = 2; 1826 /* Prepare FIS receive area for check. */ 1827 for (i = 0; i < 20; i++) 1828 fis[i] = 0xff; 1829 } 1830 } else 1831 softreset = 0; 1832 clp->bytecount = 0; 1833 clp->cmd_table_phys = htole64(ch->dma.work_bus + AHCI_CT_OFFSET + 1834 (AHCI_CT_SIZE * slot->slot)); 1835 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 1836 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1837 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 1838 BUS_DMASYNC_PREREAD); 1839 /* Set ACTIVE bit for NCQ commands. */ 1840 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 1841 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 1842 ATA_OUTL(ch->r_mem, AHCI_P_SACT, 1 << slot->slot); 1843 } 1844 /* If FBS is enabled, set PMP port. */ 1845 if (ch->fbs_enabled) { 1846 ATA_OUTL(ch->r_mem, AHCI_P_FBS, AHCI_P_FBS_EN | 1847 (port << AHCI_P_FBS_DEV_SHIFT)); 1848 } 1849 /* Issue command to the controller. */ 1850 slot->state = AHCI_SLOT_RUNNING; 1851 ch->rslots |= (1 << slot->slot); 1852 ATA_OUTL(ch->r_mem, AHCI_P_CI, (1 << slot->slot)); 1853 /* Device reset commands doesn't interrupt. Poll them. */ 1854 if (ccb->ccb_h.func_code == XPT_ATA_IO && 1855 (ccb->ataio.cmd.command == ATA_DEVICE_RESET || softreset)) { 1856 int count, timeout = ccb->ccb_h.timeout * 100; 1857 enum ahci_err_type et = AHCI_ERR_NONE; 1858 1859 for (count = 0; count < timeout; count++) { 1860 DELAY(10); 1861 if (!(ATA_INL(ch->r_mem, AHCI_P_CI) & (1 << slot->slot))) 1862 break; 1863 if ((ATA_INL(ch->r_mem, AHCI_P_TFD) & ATA_S_ERROR) && 1864 softreset != 1) { 1865 #if 0 1866 device_printf(ch->dev, 1867 "Poll error on slot %d, TFD: %04x\n", 1868 slot->slot, ATA_INL(ch->r_mem, AHCI_P_TFD)); 1869 #endif 1870 et = AHCI_ERR_TFE; 1871 break; 1872 } 1873 /* Workaround for ATI SB600/SB700 chipsets. */ 1874 if (ccb->ccb_h.target_id == 15 && 1875 pci_get_vendor(device_get_parent(dev)) == 0x1002 && 1876 (ATA_INL(ch->r_mem, AHCI_P_IS) & AHCI_P_IX_IPM)) { 1877 et = AHCI_ERR_TIMEOUT; 1878 break; 1879 } 1880 } 1881 1882 /* Marvell controllers do not wait for readyness. */ 1883 if ((ch->quirks & AHCI_Q_NOBSYRES) && softreset == 2 && 1884 et == AHCI_ERR_NONE) { 1885 while ((val = fis[2]) & ATA_S_BUSY) { 1886 DELAY(10); 1887 if (count++ >= timeout) 1888 break; 1889 } 1890 } 1891 1892 if (timeout && (count >= timeout)) { 1893 device_printf(dev, "Poll timeout on slot %d port %d\n", 1894 slot->slot, port); 1895 device_printf(dev, "is %08x cs %08x ss %08x " 1896 "rs %08x tfd %02x serr %08x cmd %08x\n", 1897 ATA_INL(ch->r_mem, AHCI_P_IS), 1898 ATA_INL(ch->r_mem, AHCI_P_CI), 1899 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1900 ATA_INL(ch->r_mem, AHCI_P_TFD), 1901 ATA_INL(ch->r_mem, AHCI_P_SERR), 1902 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1903 et = AHCI_ERR_TIMEOUT; 1904 } 1905 1906 /* Kick controller into sane state and enable FBS. */ 1907 if (softreset == 2) 1908 ch->eslots |= (1 << slot->slot); 1909 ahci_end_transaction(slot, et); 1910 return; 1911 } 1912 /* Start command execution timeout */ 1913 callout_reset(&slot->timeout, (int)ccb->ccb_h.timeout * hz / 2000, 1914 (timeout_t*)ahci_timeout, slot); 1915 return; 1916 } 1917 1918 /* Must be called with channel locked. */ 1919 static void 1920 ahci_process_timeout(device_t dev) 1921 { 1922 struct ahci_channel *ch = device_get_softc(dev); 1923 int i; 1924 1925 mtx_assert(&ch->mtx, MA_OWNED); 1926 /* Handle the rest of commands. */ 1927 for (i = 0; i < ch->numslots; i++) { 1928 /* Do we have a running request on slot? */ 1929 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 1930 continue; 1931 ahci_end_transaction(&ch->slot[i], AHCI_ERR_TIMEOUT); 1932 } 1933 } 1934 1935 /* Must be called with channel locked. */ 1936 static void 1937 ahci_rearm_timeout(device_t dev) 1938 { 1939 struct ahci_channel *ch = device_get_softc(dev); 1940 int i; 1941 1942 mtx_assert(&ch->mtx, MA_OWNED); 1943 for (i = 0; i < ch->numslots; i++) { 1944 struct ahci_slot *slot = &ch->slot[i]; 1945 1946 /* Do we have a running request on slot? */ 1947 if (slot->state < AHCI_SLOT_RUNNING) 1948 continue; 1949 if ((ch->toslots & (1 << i)) == 0) 1950 continue; 1951 callout_reset(&slot->timeout, 1952 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1953 (timeout_t*)ahci_timeout, slot); 1954 } 1955 } 1956 1957 /* Locked by callout mechanism. */ 1958 static void 1959 ahci_timeout(struct ahci_slot *slot) 1960 { 1961 device_t dev = slot->dev; 1962 struct ahci_channel *ch = device_get_softc(dev); 1963 uint32_t sstatus; 1964 int ccs; 1965 int i; 1966 1967 /* Check for stale timeout. */ 1968 if (slot->state < AHCI_SLOT_RUNNING) 1969 return; 1970 1971 /* Check if slot was not being executed last time we checked. */ 1972 if (slot->state < AHCI_SLOT_EXECUTING) { 1973 /* Check if slot started executing. */ 1974 sstatus = ATA_INL(ch->r_mem, AHCI_P_SACT); 1975 ccs = (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CCS_MASK) 1976 >> AHCI_P_CMD_CCS_SHIFT; 1977 if ((sstatus & (1 << slot->slot)) != 0 || ccs == slot->slot || 1978 ch->fbs_enabled || ch->wrongccs) 1979 slot->state = AHCI_SLOT_EXECUTING; 1980 else if ((ch->rslots & (1 << ccs)) == 0) { 1981 ch->wrongccs = 1; 1982 slot->state = AHCI_SLOT_EXECUTING; 1983 } 1984 1985 callout_reset(&slot->timeout, 1986 (int)slot->ccb->ccb_h.timeout * hz / 2000, 1987 (timeout_t*)ahci_timeout, slot); 1988 return; 1989 } 1990 1991 device_printf(dev, "Timeout on slot %d port %d\n", 1992 slot->slot, slot->ccb->ccb_h.target_id & 0x0f); 1993 device_printf(dev, "is %08x cs %08x ss %08x rs %08x tfd %02x " 1994 "serr %08x cmd %08x\n", 1995 ATA_INL(ch->r_mem, AHCI_P_IS), ATA_INL(ch->r_mem, AHCI_P_CI), 1996 ATA_INL(ch->r_mem, AHCI_P_SACT), ch->rslots, 1997 ATA_INL(ch->r_mem, AHCI_P_TFD), ATA_INL(ch->r_mem, AHCI_P_SERR), 1998 ATA_INL(ch->r_mem, AHCI_P_CMD)); 1999 2000 /* Handle frozen command. */ 2001 if (ch->frozen) { 2002 union ccb *fccb = ch->frozen; 2003 ch->frozen = NULL; 2004 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2005 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2006 xpt_freeze_devq(fccb->ccb_h.path, 1); 2007 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2008 } 2009 xpt_done(fccb); 2010 } 2011 if (!ch->fbs_enabled && !ch->wrongccs) { 2012 /* Without FBS we know real timeout source. */ 2013 ch->fatalerr = 1; 2014 /* Handle command with timeout. */ 2015 ahci_end_transaction(&ch->slot[slot->slot], AHCI_ERR_TIMEOUT); 2016 /* Handle the rest of commands. */ 2017 for (i = 0; i < ch->numslots; i++) { 2018 /* Do we have a running request on slot? */ 2019 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2020 continue; 2021 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2022 } 2023 } else { 2024 /* With FBS we wait for other commands timeout and pray. */ 2025 if (ch->toslots == 0) 2026 xpt_freeze_simq(ch->sim, 1); 2027 ch->toslots |= (1 << slot->slot); 2028 if ((ch->rslots & ~ch->toslots) == 0) 2029 ahci_process_timeout(dev); 2030 else 2031 device_printf(dev, " ... waiting for slots %08x\n", 2032 ch->rslots & ~ch->toslots); 2033 } 2034 } 2035 2036 /* Must be called with channel locked. */ 2037 static void 2038 ahci_end_transaction(struct ahci_slot *slot, enum ahci_err_type et) 2039 { 2040 device_t dev = slot->dev; 2041 struct ahci_channel *ch = device_get_softc(dev); 2042 union ccb *ccb = slot->ccb; 2043 struct ahci_cmd_list *clp; 2044 int lastto; 2045 uint32_t sig; 2046 2047 bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, 2048 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2049 clp = (struct ahci_cmd_list *) 2050 (ch->dma.work + AHCI_CL_OFFSET + (AHCI_CL_SIZE * slot->slot)); 2051 /* Read result registers to the result struct 2052 * May be incorrect if several commands finished same time, 2053 * so read only when sure or have to. 2054 */ 2055 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2056 struct ata_res *res = &ccb->ataio.res; 2057 2058 if ((et == AHCI_ERR_TFE) || 2059 (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)) { 2060 u_int8_t *fis = ch->dma.rfis + 0x40; 2061 2062 bus_dmamap_sync(ch->dma.rfis_tag, ch->dma.rfis_map, 2063 BUS_DMASYNC_POSTREAD); 2064 if (ch->fbs_enabled) { 2065 fis += ccb->ccb_h.target_id * 256; 2066 res->status = fis[2]; 2067 res->error = fis[3]; 2068 } else { 2069 uint16_t tfd = ATA_INL(ch->r_mem, AHCI_P_TFD); 2070 2071 res->status = tfd; 2072 res->error = tfd >> 8; 2073 } 2074 res->lba_low = fis[4]; 2075 res->lba_mid = fis[5]; 2076 res->lba_high = fis[6]; 2077 res->device = fis[7]; 2078 res->lba_low_exp = fis[8]; 2079 res->lba_mid_exp = fis[9]; 2080 res->lba_high_exp = fis[10]; 2081 res->sector_count = fis[12]; 2082 res->sector_count_exp = fis[13]; 2083 2084 /* 2085 * Some weird controllers do not return signature in 2086 * FIS receive area. Read it from PxSIG register. 2087 */ 2088 if ((ch->quirks & AHCI_Q_ALTSIG) && 2089 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2090 (ccb->ataio.cmd.control & ATA_A_RESET) == 0) { 2091 sig = ATA_INL(ch->r_mem, AHCI_P_SIG); 2092 res->lba_high = sig >> 24; 2093 res->lba_mid = sig >> 16; 2094 res->lba_low = sig >> 8; 2095 res->sector_count = sig; 2096 } 2097 } else 2098 bzero(res, sizeof(*res)); 2099 if ((ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) == 0 && 2100 (ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2101 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2102 ccb->ataio.resid = 2103 ccb->ataio.dxfer_len - le32toh(clp->bytecount); 2104 } 2105 } else { 2106 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2107 (ch->quirks & AHCI_Q_NOCOUNT) == 0) { 2108 ccb->csio.resid = 2109 ccb->csio.dxfer_len - le32toh(clp->bytecount); 2110 } 2111 } 2112 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 2113 bus_dmamap_sync(ch->dma.data_tag, slot->dma.data_map, 2114 (ccb->ccb_h.flags & CAM_DIR_IN) ? 2115 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2116 bus_dmamap_unload(ch->dma.data_tag, slot->dma.data_map); 2117 } 2118 if (et != AHCI_ERR_NONE) 2119 ch->eslots |= (1 << slot->slot); 2120 /* In case of error, freeze device for proper recovery. */ 2121 if ((et != AHCI_ERR_NONE) && (!ch->recoverycmd) && 2122 !(ccb->ccb_h.status & CAM_DEV_QFRZN)) { 2123 xpt_freeze_devq(ccb->ccb_h.path, 1); 2124 ccb->ccb_h.status |= CAM_DEV_QFRZN; 2125 } 2126 /* Set proper result status. */ 2127 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2128 switch (et) { 2129 case AHCI_ERR_NONE: 2130 ccb->ccb_h.status |= CAM_REQ_CMP; 2131 if (ccb->ccb_h.func_code == XPT_SCSI_IO) 2132 ccb->csio.scsi_status = SCSI_STATUS_OK; 2133 break; 2134 case AHCI_ERR_INVALID: 2135 ch->fatalerr = 1; 2136 ccb->ccb_h.status |= CAM_REQ_INVALID; 2137 break; 2138 case AHCI_ERR_INNOCENT: 2139 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 2140 break; 2141 case AHCI_ERR_TFE: 2142 case AHCI_ERR_NCQ: 2143 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2144 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 2145 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 2146 } else { 2147 ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR; 2148 } 2149 break; 2150 case AHCI_ERR_SATA: 2151 ch->fatalerr = 1; 2152 if (!ch->recoverycmd) { 2153 xpt_freeze_simq(ch->sim, 1); 2154 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2155 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2156 } 2157 ccb->ccb_h.status |= CAM_UNCOR_PARITY; 2158 break; 2159 case AHCI_ERR_TIMEOUT: 2160 if (!ch->recoverycmd) { 2161 xpt_freeze_simq(ch->sim, 1); 2162 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 2163 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 2164 } 2165 ccb->ccb_h.status |= CAM_CMD_TIMEOUT; 2166 break; 2167 default: 2168 ch->fatalerr = 1; 2169 ccb->ccb_h.status |= CAM_REQ_CMP_ERR; 2170 } 2171 /* Free slot. */ 2172 ch->oslots &= ~(1 << slot->slot); 2173 ch->rslots &= ~(1 << slot->slot); 2174 ch->aslots &= ~(1 << slot->slot); 2175 slot->state = AHCI_SLOT_EMPTY; 2176 slot->ccb = NULL; 2177 /* Update channel stats. */ 2178 ch->numrslots--; 2179 ch->numrslotspd[ccb->ccb_h.target_id]--; 2180 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2181 (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA)) { 2182 ch->numtslots--; 2183 ch->numtslotspd[ccb->ccb_h.target_id]--; 2184 } 2185 /* Cancel timeout state if request completed normally. */ 2186 if (et != AHCI_ERR_TIMEOUT) { 2187 lastto = (ch->toslots == (1 << slot->slot)); 2188 ch->toslots &= ~(1 << slot->slot); 2189 if (lastto) 2190 xpt_release_simq(ch->sim, TRUE); 2191 } 2192 /* If it was first request of reset sequence and there is no error, 2193 * proceed to second request. */ 2194 if ((ccb->ccb_h.func_code == XPT_ATA_IO) && 2195 (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) && 2196 (ccb->ataio.cmd.control & ATA_A_RESET) && 2197 et == AHCI_ERR_NONE) { 2198 ccb->ataio.cmd.control &= ~ATA_A_RESET; 2199 ahci_begin_transaction(dev, ccb); 2200 return; 2201 } 2202 /* If it was our READ LOG command - process it. */ 2203 if (ccb->ccb_h.recovery_type == RECOVERY_READ_LOG) { 2204 ahci_process_read_log(dev, ccb); 2205 /* If it was our REQUEST SENSE command - process it. */ 2206 } else if (ccb->ccb_h.recovery_type == RECOVERY_REQUEST_SENSE) { 2207 ahci_process_request_sense(dev, ccb); 2208 /* If it was NCQ or ATAPI command error, put result on hold. */ 2209 } else if (et == AHCI_ERR_NCQ || 2210 ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR && 2211 (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)) { 2212 ch->hold[slot->slot] = ccb; 2213 ch->numhslots++; 2214 } else 2215 xpt_done(ccb); 2216 /* If we have no other active commands, ... */ 2217 if (ch->rslots == 0) { 2218 /* if there was fatal error - reset port. */ 2219 if (ch->toslots != 0 || ch->fatalerr) { 2220 ahci_reset(dev); 2221 } else { 2222 /* if we have slots in error, we can reinit port. */ 2223 if (ch->eslots != 0) { 2224 ahci_stop(dev); 2225 ahci_clo(dev); 2226 ahci_start(dev, 1); 2227 } 2228 /* if there commands on hold, we can do READ LOG. */ 2229 if (!ch->recoverycmd && ch->numhslots) 2230 ahci_issue_recovery(dev); 2231 } 2232 /* If all the rest of commands are in timeout - give them chance. */ 2233 } else if ((ch->rslots & ~ch->toslots) == 0 && 2234 et != AHCI_ERR_TIMEOUT) 2235 ahci_rearm_timeout(dev); 2236 /* Unfreeze frozen command. */ 2237 if (ch->frozen && !ahci_check_collision(dev, ch->frozen)) { 2238 union ccb *fccb = ch->frozen; 2239 ch->frozen = NULL; 2240 ahci_begin_transaction(dev, fccb); 2241 xpt_release_simq(ch->sim, TRUE); 2242 } 2243 /* Start PM timer. */ 2244 if (ch->numrslots == 0 && ch->pm_level > 3 && 2245 (ch->curr[ch->pm_present ? 15 : 0].caps & CTS_SATA_CAPS_D_PMREQ)) { 2246 callout_schedule(&ch->pm_timer, 2247 (ch->pm_level == 4) ? hz / 1000 : hz / 8); 2248 } 2249 } 2250 2251 static void 2252 ahci_issue_recovery(device_t dev) 2253 { 2254 struct ahci_channel *ch = device_get_softc(dev); 2255 union ccb *ccb; 2256 struct ccb_ataio *ataio; 2257 struct ccb_scsiio *csio; 2258 int i; 2259 2260 /* Find some held command. */ 2261 for (i = 0; i < ch->numslots; i++) { 2262 if (ch->hold[i]) 2263 break; 2264 } 2265 ccb = xpt_alloc_ccb_nowait(); 2266 if (ccb == NULL) { 2267 device_printf(dev, "Unable to allocate recovery command\n"); 2268 completeall: 2269 /* We can't do anything -- complete held commands. */ 2270 for (i = 0; i < ch->numslots; i++) { 2271 if (ch->hold[i] == NULL) 2272 continue; 2273 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2274 ch->hold[i]->ccb_h.status |= CAM_RESRC_UNAVAIL; 2275 xpt_done(ch->hold[i]); 2276 ch->hold[i] = NULL; 2277 ch->numhslots--; 2278 } 2279 ahci_reset(dev); 2280 return; 2281 } 2282 ccb->ccb_h = ch->hold[i]->ccb_h; /* Reuse old header. */ 2283 if (ccb->ccb_h.func_code == XPT_ATA_IO) { 2284 /* READ LOG */ 2285 ccb->ccb_h.recovery_type = RECOVERY_READ_LOG; 2286 ccb->ccb_h.func_code = XPT_ATA_IO; 2287 ccb->ccb_h.flags = CAM_DIR_IN; 2288 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2289 ataio = &ccb->ataio; 2290 ataio->data_ptr = malloc(512, M_AHCI, M_NOWAIT); 2291 if (ataio->data_ptr == NULL) { 2292 xpt_free_ccb(ccb); 2293 device_printf(dev, 2294 "Unable to allocate memory for READ LOG command\n"); 2295 goto completeall; 2296 } 2297 ataio->dxfer_len = 512; 2298 bzero(&ataio->cmd, sizeof(ataio->cmd)); 2299 ataio->cmd.flags = CAM_ATAIO_48BIT; 2300 ataio->cmd.command = 0x2F; /* READ LOG EXT */ 2301 ataio->cmd.sector_count = 1; 2302 ataio->cmd.sector_count_exp = 0; 2303 ataio->cmd.lba_low = 0x10; 2304 ataio->cmd.lba_mid = 0; 2305 ataio->cmd.lba_mid_exp = 0; 2306 } else { 2307 /* REQUEST SENSE */ 2308 ccb->ccb_h.recovery_type = RECOVERY_REQUEST_SENSE; 2309 ccb->ccb_h.recovery_slot = i; 2310 ccb->ccb_h.func_code = XPT_SCSI_IO; 2311 ccb->ccb_h.flags = CAM_DIR_IN; 2312 ccb->ccb_h.status = 0; 2313 ccb->ccb_h.timeout = 1000; /* 1s should be enough. */ 2314 csio = &ccb->csio; 2315 csio->data_ptr = (void *)&ch->hold[i]->csio.sense_data; 2316 csio->dxfer_len = ch->hold[i]->csio.sense_len; 2317 csio->cdb_len = 6; 2318 bzero(&csio->cdb_io, sizeof(csio->cdb_io)); 2319 csio->cdb_io.cdb_bytes[0] = 0x03; 2320 csio->cdb_io.cdb_bytes[4] = csio->dxfer_len; 2321 } 2322 /* Freeze SIM while doing recovery. */ 2323 ch->recoverycmd = 1; 2324 xpt_freeze_simq(ch->sim, 1); 2325 ahci_begin_transaction(dev, ccb); 2326 } 2327 2328 static void 2329 ahci_process_read_log(device_t dev, union ccb *ccb) 2330 { 2331 struct ahci_channel *ch = device_get_softc(dev); 2332 uint8_t *data; 2333 struct ata_res *res; 2334 int i; 2335 2336 ch->recoverycmd = 0; 2337 2338 data = ccb->ataio.data_ptr; 2339 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && 2340 (data[0] & 0x80) == 0) { 2341 for (i = 0; i < ch->numslots; i++) { 2342 if (!ch->hold[i]) 2343 continue; 2344 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2345 continue; 2346 if ((data[0] & 0x1F) == i) { 2347 res = &ch->hold[i]->ataio.res; 2348 res->status = data[2]; 2349 res->error = data[3]; 2350 res->lba_low = data[4]; 2351 res->lba_mid = data[5]; 2352 res->lba_high = data[6]; 2353 res->device = data[7]; 2354 res->lba_low_exp = data[8]; 2355 res->lba_mid_exp = data[9]; 2356 res->lba_high_exp = data[10]; 2357 res->sector_count = data[12]; 2358 res->sector_count_exp = data[13]; 2359 } else { 2360 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2361 ch->hold[i]->ccb_h.status |= CAM_REQUEUE_REQ; 2362 } 2363 xpt_done(ch->hold[i]); 2364 ch->hold[i] = NULL; 2365 ch->numhslots--; 2366 } 2367 } else { 2368 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2369 device_printf(dev, "Error while READ LOG EXT\n"); 2370 else if ((data[0] & 0x80) == 0) { 2371 device_printf(dev, "Non-queued command error in READ LOG EXT\n"); 2372 } 2373 for (i = 0; i < ch->numslots; i++) { 2374 if (!ch->hold[i]) 2375 continue; 2376 if (ch->hold[i]->ccb_h.func_code != XPT_ATA_IO) 2377 continue; 2378 xpt_done(ch->hold[i]); 2379 ch->hold[i] = NULL; 2380 ch->numhslots--; 2381 } 2382 } 2383 free(ccb->ataio.data_ptr, M_AHCI); 2384 xpt_free_ccb(ccb); 2385 xpt_release_simq(ch->sim, TRUE); 2386 } 2387 2388 static void 2389 ahci_process_request_sense(device_t dev, union ccb *ccb) 2390 { 2391 struct ahci_channel *ch = device_get_softc(dev); 2392 int i; 2393 2394 ch->recoverycmd = 0; 2395 2396 i = ccb->ccb_h.recovery_slot; 2397 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 2398 ch->hold[i]->ccb_h.status |= CAM_AUTOSNS_VALID; 2399 } else { 2400 ch->hold[i]->ccb_h.status &= ~CAM_STATUS_MASK; 2401 ch->hold[i]->ccb_h.status |= CAM_AUTOSENSE_FAIL; 2402 } 2403 xpt_done(ch->hold[i]); 2404 ch->hold[i] = NULL; 2405 ch->numhslots--; 2406 xpt_free_ccb(ccb); 2407 xpt_release_simq(ch->sim, TRUE); 2408 } 2409 2410 static void 2411 ahci_start(device_t dev, int fbs) 2412 { 2413 struct ahci_channel *ch = device_get_softc(dev); 2414 u_int32_t cmd; 2415 2416 /* Clear SATA error register */ 2417 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xFFFFFFFF); 2418 /* Clear any interrupts pending on this channel */ 2419 ATA_OUTL(ch->r_mem, AHCI_P_IS, 0xFFFFFFFF); 2420 /* Configure FIS-based switching if supported. */ 2421 if (ch->chcaps & AHCI_P_CMD_FBSCP) { 2422 ch->fbs_enabled = (fbs && ch->pm_present) ? 1 : 0; 2423 ATA_OUTL(ch->r_mem, AHCI_P_FBS, 2424 ch->fbs_enabled ? AHCI_P_FBS_EN : 0); 2425 } 2426 /* Start operations on this channel */ 2427 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2428 cmd &= ~AHCI_P_CMD_PMA; 2429 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_ST | 2430 (ch->pm_present ? AHCI_P_CMD_PMA : 0)); 2431 } 2432 2433 static void 2434 ahci_stop(device_t dev) 2435 { 2436 struct ahci_channel *ch = device_get_softc(dev); 2437 u_int32_t cmd; 2438 int timeout; 2439 2440 /* Kill all activity on this channel */ 2441 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2442 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_ST); 2443 /* Wait for activity stop. */ 2444 timeout = 0; 2445 do { 2446 DELAY(10); 2447 if (timeout++ > 50000) { 2448 device_printf(dev, "stopping AHCI engine failed\n"); 2449 break; 2450 } 2451 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CR); 2452 ch->eslots = 0; 2453 } 2454 2455 static void 2456 ahci_clo(device_t dev) 2457 { 2458 struct ahci_channel *ch = device_get_softc(dev); 2459 u_int32_t cmd; 2460 int timeout; 2461 2462 /* Issue Command List Override if supported */ 2463 if (ch->caps & AHCI_CAP_SCLO) { 2464 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2465 cmd |= AHCI_P_CMD_CLO; 2466 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd); 2467 timeout = 0; 2468 do { 2469 DELAY(10); 2470 if (timeout++ > 50000) { 2471 device_printf(dev, "executing CLO failed\n"); 2472 break; 2473 } 2474 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_CLO); 2475 } 2476 } 2477 2478 static void 2479 ahci_stop_fr(device_t dev) 2480 { 2481 struct ahci_channel *ch = device_get_softc(dev); 2482 u_int32_t cmd; 2483 int timeout; 2484 2485 /* Kill all FIS reception on this channel */ 2486 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2487 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd & ~AHCI_P_CMD_FRE); 2488 /* Wait for FIS reception stop. */ 2489 timeout = 0; 2490 do { 2491 DELAY(10); 2492 if (timeout++ > 50000) { 2493 device_printf(dev, "stopping AHCI FR engine failed\n"); 2494 break; 2495 } 2496 } while (ATA_INL(ch->r_mem, AHCI_P_CMD) & AHCI_P_CMD_FR); 2497 } 2498 2499 static void 2500 ahci_start_fr(device_t dev) 2501 { 2502 struct ahci_channel *ch = device_get_softc(dev); 2503 u_int32_t cmd; 2504 2505 /* Start FIS reception on this channel */ 2506 cmd = ATA_INL(ch->r_mem, AHCI_P_CMD); 2507 ATA_OUTL(ch->r_mem, AHCI_P_CMD, cmd | AHCI_P_CMD_FRE); 2508 } 2509 2510 static int 2511 ahci_wait_ready(device_t dev, int t, int t0) 2512 { 2513 struct ahci_channel *ch = device_get_softc(dev); 2514 int timeout = 0; 2515 uint32_t val; 2516 2517 while ((val = ATA_INL(ch->r_mem, AHCI_P_TFD)) & 2518 (ATA_S_BUSY | ATA_S_DRQ)) { 2519 if (timeout > t) { 2520 if (t != 0) { 2521 device_printf(dev, 2522 "AHCI reset: device not ready after %dms " 2523 "(tfd = %08x)\n", 2524 MAX(t, 0) + t0, val); 2525 } 2526 return (EBUSY); 2527 } 2528 DELAY(1000); 2529 timeout++; 2530 } 2531 if (bootverbose) 2532 device_printf(dev, "AHCI reset: device ready after %dms\n", 2533 timeout + t0); 2534 return (0); 2535 } 2536 2537 static void 2538 ahci_reset_to(void *arg) 2539 { 2540 device_t dev = arg; 2541 struct ahci_channel *ch = device_get_softc(dev); 2542 2543 if (ch->resetting == 0) 2544 return; 2545 ch->resetting--; 2546 if (ahci_wait_ready(dev, ch->resetting == 0 ? -1 : 0, 2547 (310 - ch->resetting) * 100) == 0) { 2548 ch->resetting = 0; 2549 ahci_start(dev, 1); 2550 xpt_release_simq(ch->sim, TRUE); 2551 return; 2552 } 2553 if (ch->resetting == 0) { 2554 ahci_clo(dev); 2555 ahci_start(dev, 1); 2556 xpt_release_simq(ch->sim, TRUE); 2557 return; 2558 } 2559 callout_schedule(&ch->reset_timer, hz / 10); 2560 } 2561 2562 static void 2563 ahci_reset(device_t dev) 2564 { 2565 struct ahci_channel *ch = device_get_softc(dev); 2566 struct ahci_controller *ctlr = device_get_softc(device_get_parent(dev)); 2567 int i; 2568 2569 xpt_freeze_simq(ch->sim, 1); 2570 if (bootverbose) 2571 device_printf(dev, "AHCI reset...\n"); 2572 /* Forget about previous reset. */ 2573 if (ch->resetting) { 2574 ch->resetting = 0; 2575 callout_stop(&ch->reset_timer); 2576 xpt_release_simq(ch->sim, TRUE); 2577 } 2578 /* Requeue freezed command. */ 2579 if (ch->frozen) { 2580 union ccb *fccb = ch->frozen; 2581 ch->frozen = NULL; 2582 fccb->ccb_h.status = CAM_REQUEUE_REQ | CAM_RELEASE_SIMQ; 2583 if (!(fccb->ccb_h.status & CAM_DEV_QFRZN)) { 2584 xpt_freeze_devq(fccb->ccb_h.path, 1); 2585 fccb->ccb_h.status |= CAM_DEV_QFRZN; 2586 } 2587 xpt_done(fccb); 2588 } 2589 /* Kill the engine and requeue all running commands. */ 2590 ahci_stop(dev); 2591 for (i = 0; i < ch->numslots; i++) { 2592 /* Do we have a running request on slot? */ 2593 if (ch->slot[i].state < AHCI_SLOT_RUNNING) 2594 continue; 2595 /* XXX; Commands in loading state. */ 2596 ahci_end_transaction(&ch->slot[i], AHCI_ERR_INNOCENT); 2597 } 2598 for (i = 0; i < ch->numslots; i++) { 2599 if (!ch->hold[i]) 2600 continue; 2601 xpt_done(ch->hold[i]); 2602 ch->hold[i] = NULL; 2603 ch->numhslots--; 2604 } 2605 if (ch->toslots != 0) 2606 xpt_release_simq(ch->sim, TRUE); 2607 ch->eslots = 0; 2608 ch->toslots = 0; 2609 ch->wrongccs = 0; 2610 ch->fatalerr = 0; 2611 /* Tell the XPT about the event */ 2612 xpt_async(AC_BUS_RESET, ch->path, NULL); 2613 /* Disable port interrupts */ 2614 ATA_OUTL(ch->r_mem, AHCI_P_IE, 0); 2615 /* Reset and reconnect PHY, */ 2616 if (!ahci_sata_phy_reset(dev)) { 2617 if (bootverbose) 2618 device_printf(dev, 2619 "AHCI reset: device not found\n"); 2620 ch->devices = 0; 2621 /* Enable wanted port interrupts */ 2622 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2623 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2624 AHCI_P_IX_PRC | AHCI_P_IX_PC)); 2625 xpt_release_simq(ch->sim, TRUE); 2626 return; 2627 } 2628 if (bootverbose) 2629 device_printf(dev, "AHCI reset: device found\n"); 2630 /* Wait for clearing busy status. */ 2631 if (ahci_wait_ready(dev, dumping ? 31000 : 0, 0)) { 2632 if (dumping) 2633 ahci_clo(dev); 2634 else 2635 ch->resetting = 310; 2636 } 2637 ch->devices = 1; 2638 /* Enable wanted port interrupts */ 2639 ATA_OUTL(ch->r_mem, AHCI_P_IE, 2640 (((ch->pm_level != 0) ? AHCI_P_IX_CPD | AHCI_P_IX_MP : 0) | 2641 AHCI_P_IX_TFE | AHCI_P_IX_HBF | 2642 AHCI_P_IX_HBD | AHCI_P_IX_IF | AHCI_P_IX_OF | 2643 ((ch->pm_level == 0) ? AHCI_P_IX_PRC : 0) | AHCI_P_IX_PC | 2644 AHCI_P_IX_DP | AHCI_P_IX_UF | (ctlr->ccc ? 0 : AHCI_P_IX_SDB) | 2645 AHCI_P_IX_DS | AHCI_P_IX_PS | (ctlr->ccc ? 0 : AHCI_P_IX_DHR))); 2646 if (ch->resetting) 2647 callout_reset(&ch->reset_timer, hz / 10, ahci_reset_to, dev); 2648 else { 2649 ahci_start(dev, 1); 2650 xpt_release_simq(ch->sim, TRUE); 2651 } 2652 } 2653 2654 static int 2655 ahci_setup_fis(device_t dev, struct ahci_cmd_tab *ctp, union ccb *ccb, int tag) 2656 { 2657 struct ahci_channel *ch = device_get_softc(dev); 2658 u_int8_t *fis = &ctp->cfis[0]; 2659 2660 bzero(ctp->cfis, 16); 2661 fis[0] = 0x27; /* host to device */ 2662 fis[1] = (ccb->ccb_h.target_id & 0x0f); 2663 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 2664 fis[1] |= 0x80; 2665 fis[2] = ATA_PACKET_CMD; 2666 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE && 2667 ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA) 2668 fis[3] = ATA_F_DMA; 2669 else { 2670 fis[5] = ccb->csio.dxfer_len; 2671 fis[6] = ccb->csio.dxfer_len >> 8; 2672 } 2673 fis[7] = ATA_D_LBA; 2674 fis[15] = ATA_A_4BIT; 2675 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 2676 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes, 2677 ctp->acmd, ccb->csio.cdb_len); 2678 bzero(ctp->acmd + ccb->csio.cdb_len, 32 - ccb->csio.cdb_len); 2679 } else if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) == 0) { 2680 fis[1] |= 0x80; 2681 fis[2] = ccb->ataio.cmd.command; 2682 fis[3] = ccb->ataio.cmd.features; 2683 fis[4] = ccb->ataio.cmd.lba_low; 2684 fis[5] = ccb->ataio.cmd.lba_mid; 2685 fis[6] = ccb->ataio.cmd.lba_high; 2686 fis[7] = ccb->ataio.cmd.device; 2687 fis[8] = ccb->ataio.cmd.lba_low_exp; 2688 fis[9] = ccb->ataio.cmd.lba_mid_exp; 2689 fis[10] = ccb->ataio.cmd.lba_high_exp; 2690 fis[11] = ccb->ataio.cmd.features_exp; 2691 if (ccb->ataio.cmd.flags & CAM_ATAIO_FPDMA) { 2692 fis[12] = tag << 3; 2693 fis[13] = 0; 2694 } else { 2695 fis[12] = ccb->ataio.cmd.sector_count; 2696 fis[13] = ccb->ataio.cmd.sector_count_exp; 2697 } 2698 fis[15] = ATA_A_4BIT; 2699 } else { 2700 fis[15] = ccb->ataio.cmd.control; 2701 } 2702 return (20); 2703 } 2704 2705 static int 2706 ahci_sata_connect(struct ahci_channel *ch) 2707 { 2708 u_int32_t status; 2709 int timeout, found = 0; 2710 2711 /* Wait up to 100ms for "connect well" */ 2712 for (timeout = 0; timeout < 1000 ; timeout++) { 2713 status = ATA_INL(ch->r_mem, AHCI_P_SSTS); 2714 if ((status & ATA_SS_DET_MASK) != ATA_SS_DET_NO_DEVICE) 2715 found = 1; 2716 if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) && 2717 ((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) && 2718 ((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) 2719 break; 2720 if ((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_OFFLINE) { 2721 if (bootverbose) { 2722 device_printf(ch->dev, "SATA offline status=%08x\n", 2723 status); 2724 } 2725 return (0); 2726 } 2727 if (found == 0 && timeout >= 100) 2728 break; 2729 DELAY(100); 2730 } 2731 if (timeout >= 1000 || !found) { 2732 if (bootverbose) { 2733 device_printf(ch->dev, 2734 "SATA connect timeout time=%dus status=%08x\n", 2735 timeout * 100, status); 2736 } 2737 return (0); 2738 } 2739 if (bootverbose) { 2740 device_printf(ch->dev, "SATA connect time=%dus status=%08x\n", 2741 timeout * 100, status); 2742 } 2743 /* Clear SATA error register */ 2744 ATA_OUTL(ch->r_mem, AHCI_P_SERR, 0xffffffff); 2745 return (1); 2746 } 2747 2748 static int 2749 ahci_sata_phy_reset(device_t dev) 2750 { 2751 struct ahci_channel *ch = device_get_softc(dev); 2752 int sata_rev; 2753 uint32_t val; 2754 2755 if (ch->listening) { 2756 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2757 val |= AHCI_P_CMD_SUD; 2758 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2759 ch->listening = 0; 2760 } 2761 sata_rev = ch->user[ch->pm_present ? 15 : 0].revision; 2762 if (sata_rev == 1) 2763 val = ATA_SC_SPD_SPEED_GEN1; 2764 else if (sata_rev == 2) 2765 val = ATA_SC_SPD_SPEED_GEN2; 2766 else if (sata_rev == 3) 2767 val = ATA_SC_SPD_SPEED_GEN3; 2768 else 2769 val = 0; 2770 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2771 ATA_SC_DET_RESET | val | 2772 ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER); 2773 DELAY(1000); 2774 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, 2775 ATA_SC_DET_IDLE | val | ((ch->pm_level > 0) ? 0 : 2776 (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))); 2777 if (!ahci_sata_connect(ch)) { 2778 if (ch->caps & AHCI_CAP_SSS) { 2779 val = ATA_INL(ch->r_mem, AHCI_P_CMD); 2780 val &= ~AHCI_P_CMD_SUD; 2781 ATA_OUTL(ch->r_mem, AHCI_P_CMD, val); 2782 ch->listening = 1; 2783 } else if (ch->pm_level > 0) 2784 ATA_OUTL(ch->r_mem, AHCI_P_SCTL, ATA_SC_DET_DISABLE); 2785 return (0); 2786 } 2787 return (1); 2788 } 2789 2790 static int 2791 ahci_check_ids(device_t dev, union ccb *ccb) 2792 { 2793 struct ahci_channel *ch = device_get_softc(dev); 2794 2795 if (ccb->ccb_h.target_id > ((ch->caps & AHCI_CAP_SPM) ? 15 : 0)) { 2796 ccb->ccb_h.status = CAM_TID_INVALID; 2797 xpt_done(ccb); 2798 return (-1); 2799 } 2800 if (ccb->ccb_h.target_lun != 0) { 2801 ccb->ccb_h.status = CAM_LUN_INVALID; 2802 xpt_done(ccb); 2803 return (-1); 2804 } 2805 return (0); 2806 } 2807 2808 static void 2809 ahciaction(struct cam_sim *sim, union ccb *ccb) 2810 { 2811 device_t dev, parent; 2812 struct ahci_channel *ch; 2813 2814 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahciaction func_code=%x\n", 2815 ccb->ccb_h.func_code)); 2816 2817 ch = (struct ahci_channel *)cam_sim_softc(sim); 2818 dev = ch->dev; 2819 switch (ccb->ccb_h.func_code) { 2820 /* Common cases first */ 2821 case XPT_ATA_IO: /* Execute the requested I/O operation */ 2822 case XPT_SCSI_IO: 2823 if (ahci_check_ids(dev, ccb)) 2824 return; 2825 if (ch->devices == 0 || 2826 (ch->pm_present == 0 && 2827 ccb->ccb_h.target_id > 0 && ccb->ccb_h.target_id < 15)) { 2828 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 2829 break; 2830 } 2831 ccb->ccb_h.recovery_type = RECOVERY_NONE; 2832 /* Check for command collision. */ 2833 if (ahci_check_collision(dev, ccb)) { 2834 /* Freeze command. */ 2835 ch->frozen = ccb; 2836 /* We have only one frozen slot, so freeze simq also. */ 2837 xpt_freeze_simq(ch->sim, 1); 2838 return; 2839 } 2840 ahci_begin_transaction(dev, ccb); 2841 return; 2842 case XPT_EN_LUN: /* Enable LUN as a target */ 2843 case XPT_TARGET_IO: /* Execute target I/O request */ 2844 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 2845 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 2846 case XPT_ABORT: /* Abort the specified CCB */ 2847 /* XXX Implement */ 2848 ccb->ccb_h.status = CAM_REQ_INVALID; 2849 break; 2850 case XPT_SET_TRAN_SETTINGS: 2851 { 2852 struct ccb_trans_settings *cts = &ccb->cts; 2853 struct ahci_device *d; 2854 2855 if (ahci_check_ids(dev, ccb)) 2856 return; 2857 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2858 d = &ch->curr[ccb->ccb_h.target_id]; 2859 else 2860 d = &ch->user[ccb->ccb_h.target_id]; 2861 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION) 2862 d->revision = cts->xport_specific.sata.revision; 2863 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) 2864 d->mode = cts->xport_specific.sata.mode; 2865 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT) 2866 d->bytecount = min(8192, cts->xport_specific.sata.bytecount); 2867 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_TAGS) 2868 d->tags = min(ch->numslots, cts->xport_specific.sata.tags); 2869 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_PM) 2870 ch->pm_present = cts->xport_specific.sata.pm_present; 2871 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI) 2872 d->atapi = cts->xport_specific.sata.atapi; 2873 if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS) 2874 d->caps = cts->xport_specific.sata.caps; 2875 ccb->ccb_h.status = CAM_REQ_CMP; 2876 break; 2877 } 2878 case XPT_GET_TRAN_SETTINGS: 2879 /* Get default/user set transfer settings for the target */ 2880 { 2881 struct ccb_trans_settings *cts = &ccb->cts; 2882 struct ahci_device *d; 2883 uint32_t status; 2884 2885 if (ahci_check_ids(dev, ccb)) 2886 return; 2887 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 2888 d = &ch->curr[ccb->ccb_h.target_id]; 2889 else 2890 d = &ch->user[ccb->ccb_h.target_id]; 2891 cts->protocol = PROTO_UNSPECIFIED; 2892 cts->protocol_version = PROTO_VERSION_UNSPECIFIED; 2893 cts->transport = XPORT_SATA; 2894 cts->transport_version = XPORT_VERSION_UNSPECIFIED; 2895 cts->proto_specific.valid = 0; 2896 cts->xport_specific.sata.valid = 0; 2897 if (cts->type == CTS_TYPE_CURRENT_SETTINGS && 2898 (ccb->ccb_h.target_id == 15 || 2899 (ccb->ccb_h.target_id == 0 && !ch->pm_present))) { 2900 status = ATA_INL(ch->r_mem, AHCI_P_SSTS) & ATA_SS_SPD_MASK; 2901 if (status & 0x0f0) { 2902 cts->xport_specific.sata.revision = 2903 (status & 0x0f0) >> 4; 2904 cts->xport_specific.sata.valid |= 2905 CTS_SATA_VALID_REVISION; 2906 } 2907 cts->xport_specific.sata.caps = d->caps & CTS_SATA_CAPS_D; 2908 if (ch->pm_level) { 2909 if (ch->caps & (AHCI_CAP_PSC | AHCI_CAP_SSC)) 2910 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_PMREQ; 2911 if (ch->caps2 & AHCI_CAP2_APST) 2912 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_APST; 2913 } 2914 if ((ch->caps & AHCI_CAP_SNCQ) && 2915 (ch->quirks & AHCI_Q_NOAA) == 0) 2916 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_DMAAA; 2917 cts->xport_specific.sata.caps |= CTS_SATA_CAPS_H_AN; 2918 cts->xport_specific.sata.caps &= 2919 ch->user[ccb->ccb_h.target_id].caps; 2920 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2921 } else { 2922 cts->xport_specific.sata.revision = d->revision; 2923 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION; 2924 cts->xport_specific.sata.caps = d->caps; 2925 cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS; 2926 } 2927 cts->xport_specific.sata.mode = d->mode; 2928 cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE; 2929 cts->xport_specific.sata.bytecount = d->bytecount; 2930 cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT; 2931 cts->xport_specific.sata.pm_present = ch->pm_present; 2932 cts->xport_specific.sata.valid |= CTS_SATA_VALID_PM; 2933 cts->xport_specific.sata.tags = d->tags; 2934 cts->xport_specific.sata.valid |= CTS_SATA_VALID_TAGS; 2935 cts->xport_specific.sata.atapi = d->atapi; 2936 cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI; 2937 ccb->ccb_h.status = CAM_REQ_CMP; 2938 break; 2939 } 2940 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2941 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 2942 ahci_reset(dev); 2943 ccb->ccb_h.status = CAM_REQ_CMP; 2944 break; 2945 case XPT_TERM_IO: /* Terminate the I/O process */ 2946 /* XXX Implement */ 2947 ccb->ccb_h.status = CAM_REQ_INVALID; 2948 break; 2949 case XPT_PATH_INQ: /* Path routing inquiry */ 2950 { 2951 struct ccb_pathinq *cpi = &ccb->cpi; 2952 2953 parent = device_get_parent(dev); 2954 cpi->version_num = 1; /* XXX??? */ 2955 cpi->hba_inquiry = PI_SDTR_ABLE; 2956 if (ch->caps & AHCI_CAP_SNCQ) 2957 cpi->hba_inquiry |= PI_TAG_ABLE; 2958 if (ch->caps & AHCI_CAP_SPM) 2959 cpi->hba_inquiry |= PI_SATAPM; 2960 cpi->target_sprt = 0; 2961 cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED; 2962 cpi->hba_eng_cnt = 0; 2963 if (ch->caps & AHCI_CAP_SPM) 2964 cpi->max_target = 15; 2965 else 2966 cpi->max_target = 0; 2967 cpi->max_lun = 0; 2968 cpi->initiator_id = 0; 2969 cpi->bus_id = cam_sim_bus(sim); 2970 cpi->base_transfer_speed = 150000; 2971 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2972 strncpy(cpi->hba_vid, "AHCI", HBA_IDLEN); 2973 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2974 cpi->unit_number = cam_sim_unit(sim); 2975 cpi->transport = XPORT_SATA; 2976 cpi->transport_version = XPORT_VERSION_UNSPECIFIED; 2977 cpi->protocol = PROTO_ATA; 2978 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; 2979 cpi->maxio = MAXPHYS; 2980 /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ 2981 if (pci_get_devid(parent) == 0x43801002) 2982 cpi->maxio = min(cpi->maxio, 128 * 512); 2983 cpi->hba_vendor = pci_get_vendor(parent); 2984 cpi->hba_device = pci_get_device(parent); 2985 cpi->hba_subvendor = pci_get_subvendor(parent); 2986 cpi->hba_subdevice = pci_get_subdevice(parent); 2987 cpi->ccb_h.status = CAM_REQ_CMP; 2988 break; 2989 } 2990 default: 2991 ccb->ccb_h.status = CAM_REQ_INVALID; 2992 break; 2993 } 2994 xpt_done(ccb); 2995 } 2996 2997 static void 2998 ahcipoll(struct cam_sim *sim) 2999 { 3000 struct ahci_channel *ch = (struct ahci_channel *)cam_sim_softc(sim); 3001 3002 ahci_ch_intr(ch->dev); 3003 if (ch->resetting != 0 && 3004 (--ch->resetpolldiv <= 0 || !callout_pending(&ch->reset_timer))) { 3005 ch->resetpolldiv = 1000; 3006 ahci_reset_to(ch->dev); 3007 } 3008 } 3009