1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/aac/aac_pci.c 254005 2013-08-06 19:14:02Z marius $ 30 */ 31 32 /* 33 * PCI bus interface and resource allocation. 34 */ 35 36 #include "opt_aac.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/module.h> 42 43 #include <sys/bio.h> 44 #include <sys/bus.h> 45 #include <sys/conf.h> 46 #include <sys/disk.h> 47 48 #include <sys/rman.h> 49 50 #include <bus/pci/pcireg.h> 51 #include <bus/pci/pcivar.h> 52 53 #include <dev/raid/aac/aacreg.h> 54 #include <dev/raid/aac/aac_ioctl.h> 55 #include <dev/raid/aac/aacvar.h> 56 57 static int aac_pci_probe(device_t dev); 58 static int aac_pci_attach(device_t dev); 59 60 static int aac_msi_enable = 1; 61 TUNABLE_INT("hw.mfi.msi.enable", &aac_msi_enable); 62 63 static device_method_t aac_methods[] = { 64 /* Device interface */ 65 DEVMETHOD(device_probe, aac_pci_probe), 66 DEVMETHOD(device_attach, aac_pci_attach), 67 DEVMETHOD(device_detach, aac_detach), 68 DEVMETHOD(device_suspend, aac_suspend), 69 DEVMETHOD(device_resume, aac_resume), 70 71 DEVMETHOD_END 72 }; 73 74 static driver_t aac_pci_driver = { 75 "aac", 76 aac_methods, 77 sizeof(struct aac_softc) 78 }; 79 80 static devclass_t aac_devclass; 81 82 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, NULL, NULL); 83 MODULE_DEPEND(aac, pci, 1, 1, 1); 84 85 86 static const struct aac_ident 87 { 88 u_int16_t vendor; 89 u_int16_t device; 90 u_int16_t subvendor; 91 u_int16_t subdevice; 92 int hwif; 93 int quirks; 94 const char *desc; 95 } aac_identifiers[] = { 96 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0, 97 "Dell PERC 2/Si"}, 98 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0, 99 "Dell PERC 3/Di"}, 100 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0, 101 "Dell PERC 3/Si"}, 102 {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0, 103 "Dell PERC 3/Si"}, 104 {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0, 105 "Dell PERC 3/Di"}, 106 {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0, 107 "Dell PERC 3/Di"}, 108 {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0, 109 "Dell PERC 3/Di"}, 110 {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0, 111 "Dell PERC 3/Di"}, 112 {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0, 113 "Dell PERC 3/Di"}, 114 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0, 115 "Adaptec AAC-364"}, 116 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 117 AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"}, 118 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC, 119 "Dell PERC 2/QC"}, 120 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0, 121 "HP NetRaid-4M"}, 122 {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 123 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"}, 124 {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 125 AAC_FLAGS_256FIBS, "Dell PERC 320/DC"}, 126 {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 127 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"}, 128 {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 129 "Adaptec SATA RAID 2410SA"}, 130 {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 131 "Dell CERC SATA RAID 2"}, 132 {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 133 "Adaptec SATA RAID 2810SA"}, 134 {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 135 "Adaptec SATA RAID 21610SA"}, 136 {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 137 "HP ML110 G2 (Adaptec 2610SA)"}, 138 {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, AAC_FLAGS_NOMSI, 139 "Adaptec SCSI RAID 2230S"}, 140 {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0, 141 "Adaptec SCSI RAID 2130S"}, 142 {0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 143 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"}, 144 {0x9005, 0x0285, 0x17aa, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 145 AAC_FLAGS_256FIBS, "Legend S220"}, 146 {0x9005, 0x0285, 0x17aa, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 147 AAC_FLAGS_256FIBS, "Legend S230"}, 148 {0x9005, 0x0285, 0x9005, 0x0288, AAC_HWIF_I960RX, 0, 149 "Adaptec SCSI RAID 3230S"}, 150 {0x9005, 0x0285, 0x9005, 0x0289, AAC_HWIF_I960RX, 0, 151 "Adaptec SCSI RAID 3240S"}, 152 {0x9005, 0x0285, 0x9005, 0x028a, AAC_HWIF_I960RX, 0, 153 "Adaptec SCSI RAID 2020ZCR"}, 154 {0x9005, 0x0285, 0x9005, 0x028b, AAC_HWIF_I960RX, 0, 155 "Adaptec SCSI RAID 2025ZCR"}, 156 {0x9005, 0x0286, 0x9005, 0x029b, AAC_HWIF_RKT, AAC_FLAGS_NOMSI, 157 "Adaptec SATA RAID 2820SA"}, 158 {0x9005, 0x0286, 0x9005, 0x029c, AAC_HWIF_RKT, 0, 159 "Adaptec SATA RAID 2620SA"}, 160 {0x9005, 0x0286, 0x9005, 0x029d, AAC_HWIF_RKT, 0, 161 "Adaptec SATA RAID 2420SA"}, 162 {0x9005, 0x0286, 0x9005, 0x029e, AAC_HWIF_RKT, 0, 163 "ICP ICP9024RO SCSI RAID"}, 164 {0x9005, 0x0286, 0x9005, 0x029f, AAC_HWIF_RKT, 0, 165 "ICP ICP9014RO SCSI RAID"}, 166 {0x9005, 0x0285, 0x9005, 0x0294, AAC_HWIF_I960RX, 0, 167 "Adaptec SATA RAID 2026ZCR"}, 168 {0x9005, 0x0285, 0x9005, 0x0296, AAC_HWIF_I960RX, 0, 169 "Adaptec SCSI RAID 2240S"}, 170 {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0, 171 "Adaptec SAS RAID 4005SAS"}, 172 {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0, 173 "IBM ServeRAID 8i"}, 174 {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0, 175 "IBM ServeRAID 8i"}, 176 {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0, 177 "Adaptec RAID 4000"}, 178 {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0, 179 "Adaptec SAS RAID 4800SAS"}, 180 {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0, 181 "Adaptec SAS RAID 4805SAS"}, 182 {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0, 183 "Adaptec SATA RAID 2020SA ZCR"}, 184 {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0, 185 "Adaptec SATA RAID 2025SA ZCR"}, 186 {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0, 187 "ICP ICP9085LI SAS RAID"}, 188 {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0, 189 "ICP ICP5085BR SAS RAID"}, 190 {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0, 191 "ICP ICP9047MA SATA RAID"}, 192 {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0, 193 "ICP ICP9087MA SATA RAID"}, 194 {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0, 195 "ICP9067MA SATA RAID"}, 196 {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0, 197 "Adaptec RAID 5445"}, 198 {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0, 199 "Adaptec RAID 5805"}, 200 {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0, 201 "Adaptec RAID 5085"}, 202 {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0, 203 "ICP RAID ICP5445SL"}, 204 {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0, 205 "ICP RAID ICP5085SL"}, 206 {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0, 207 "ICP RAID ICP5805SL"}, 208 {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0, 209 "Adaptec RAID 3405"}, 210 {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0, 211 "Adaptec RAID 3805"}, 212 {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0, 213 "Adaptec RAID 31205"}, 214 {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0, 215 "Adaptec RAID 31605"}, 216 {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0, 217 "ICP RAID ICP5045BL"}, 218 {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0, 219 "ICP RAID ICP5085BL"}, 220 {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0, 221 "ICP RAID ICP5125BR"}, 222 {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0, 223 "ICP RAID ICP5165BR"}, 224 {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0, 225 "Adaptec RAID 51205"}, 226 {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0, 227 "Adaptec RAID 51605"}, 228 {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0, 229 "ICP RAID ICP5125SL"}, 230 {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0, 231 "ICP RAID ICP5165SL"}, 232 {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0, 233 "Adaptec RAID 3085"}, 234 {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0, 235 "ICP RAID ICP5805BL"}, 236 {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0, 237 "Adaptec RAID 51245"}, 238 {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0, 239 "Adaptec RAID 51645"}, 240 {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0, 241 "Adaptec RAID 52445"}, 242 {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0, 243 "Adaptec RAID 5405"}, 244 {0x9005, 0x0285, 0x9005, 0x02d4, AAC_HWIF_I960RX, 0, 245 "Adaptec RAID 2045"}, 246 {0x9005, 0x0285, 0x9005, 0x02d5, AAC_HWIF_I960RX, 0, 247 "Adaptec RAID 2405"}, 248 {0x9005, 0x0285, 0x9005, 0x02d6, AAC_HWIF_I960RX, 0, 249 "Adaptec RAID 2445"}, 250 {0x9005, 0x0285, 0x9005, 0x02d7, AAC_HWIF_I960RX, 0, 251 "Adaptec RAID 2805"}, 252 {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0, 253 "IBM ServeRAID-8k"}, 254 {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0, 255 "IBM ServeRAID 8s"}, 256 {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0, 257 "Sun STK RAID REM"}, 258 {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0, 259 "Sun STK RAID EM"}, 260 {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0, 261 "SG-XPCIESAS-R-IN"}, 262 {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0, 263 "SG-XPCIESAS-R-EX"}, 264 {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0, 265 "AOC-USAS-S4i"}, 266 {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0, 267 "AOC-USAS-S8i"}, 268 {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0, 269 "AOC-USAS-S4iR"}, 270 {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0, 271 "AOC-USAS-S8iR"}, 272 {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0, 273 "AOC-USAS-S8i-LP"}, 274 {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0, 275 "AOC-USAS-S8iR-LP"}, 276 {0, 0, 0, 0, 0, 0, 0} 277 }; 278 279 static const struct aac_ident 280 aac_family_identifiers[] = { 281 {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0, 282 "Adaptec RAID Controller"}, 283 {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0, 284 "Adaptec RAID Controller"}, 285 {0, 0, 0, 0, 0, 0, 0} 286 }; 287 288 static const struct aac_ident * 289 aac_find_ident(device_t dev) 290 { 291 const struct aac_ident *m; 292 u_int16_t vendid, devid, sub_vendid, sub_devid; 293 294 vendid = pci_get_vendor(dev); 295 devid = pci_get_device(dev); 296 sub_vendid = pci_get_subvendor(dev); 297 sub_devid = pci_get_subdevice(dev); 298 299 for (m = aac_identifiers; m->vendor != 0; m++) { 300 if ((m->vendor == vendid) && (m->device == devid) && 301 (m->subvendor == sub_vendid) && 302 (m->subdevice == sub_devid)) 303 return (m); 304 } 305 306 for (m = aac_family_identifiers; m->vendor != 0; m++) { 307 if ((m->vendor == vendid) && (m->device == devid)) 308 return (m); 309 } 310 return (NULL); 311 } 312 313 /* 314 * Determine whether this is one of our supported adapters. 315 */ 316 static int 317 aac_pci_probe(device_t dev) 318 { 319 const struct aac_ident *id; 320 321 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 322 323 if ((id = aac_find_ident(dev)) != NULL) { 324 device_set_desc(dev, id->desc); 325 return(BUS_PROBE_DEFAULT); 326 } 327 return(ENXIO); 328 } 329 330 /* 331 * Allocate resources for our device, set up the bus interface. 332 */ 333 static int 334 aac_pci_attach(device_t dev) 335 { 336 struct aac_softc *sc; 337 const struct aac_ident *id; 338 int error, rid; 339 u_int irq_flags; 340 341 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 342 343 /* 344 * Initialise softc. 345 */ 346 sc = device_get_softc(dev); 347 sc->aac_dev = dev; 348 349 /* assume failure is 'not configured' */ 350 error = ENXIO; 351 352 /* 353 * Verify that the adapter is correctly set up in PCI space. 354 */ 355 pci_enable_busmaster(dev); 356 if (!(pci_read_config(dev, PCIR_COMMAND, 2) & PCIM_CMD_BUSMASTEREN)) { 357 device_printf(dev, "can't enable bus-master feature\n"); 358 goto out; 359 } 360 361 /* 362 * Detect the hardware interface version, set up the bus interface 363 * indirection. 364 */ 365 id = aac_find_ident(dev); 366 sc->aac_hwif = id->hwif; 367 switch(sc->aac_hwif) { 368 case AAC_HWIF_I960RX: 369 case AAC_HWIF_NARK: 370 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, 371 "set hardware up for i960Rx/NARK"); 372 sc->aac_if = &aac_rx_interface; 373 break; 374 case AAC_HWIF_STRONGARM: 375 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, 376 "set hardware up for StrongARM"); 377 sc->aac_if = &aac_sa_interface; 378 break; 379 case AAC_HWIF_RKT: 380 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, 381 "set hardware up for Rocket/MIPS"); 382 sc->aac_if = &aac_rkt_interface; 383 break; 384 default: 385 sc->aac_hwif = AAC_HWIF_UNKNOWN; 386 device_printf(dev, "unknown hardware type\n"); 387 goto out; 388 } 389 390 /* Set up quirks */ 391 sc->flags = id->quirks; 392 393 /* 394 * Allocate the PCI register window(s). 395 */ 396 rid = PCIR_BAR(0); 397 if ((sc->aac_regs_res0 = bus_alloc_resource_any(dev, 398 SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) { 399 device_printf(dev, "can't allocate register window 0\n"); 400 goto out; 401 } 402 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); 403 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); 404 405 if (sc->aac_hwif == AAC_HWIF_NARK) { 406 rid = PCIR_BAR(1); 407 if ((sc->aac_regs_res1 = bus_alloc_resource_any(dev, 408 SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) { 409 device_printf(dev, 410 "can't allocate register window 1\n"); 411 goto out; 412 } 413 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); 414 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); 415 } else { 416 sc->aac_regs_res1 = sc->aac_regs_res0; 417 sc->aac_btag1 = sc->aac_btag0; 418 sc->aac_bhandle1 = sc->aac_bhandle0; 419 } 420 421 /* 422 * Allocate the interrupt. 423 */ 424 sc->aac_irq_rid = 0; 425 if ((sc->flags & AAC_FLAGS_NOMSI) != 0) 426 aac_msi_enable = 0; 427 sc->aac_irq_type = pci_alloc_1intr(sc->aac_dev, aac_msi_enable, 428 &sc->aac_irq_rid, &irq_flags); 429 if ((sc->aac_irq = bus_alloc_resource_any(sc->aac_dev, SYS_RES_IRQ, 430 &sc->aac_irq_rid, irq_flags)) == NULL) { 431 device_printf(dev, "can't allocate interrupt\n"); 432 goto out; 433 } 434 435 /* 436 * Allocate the parent bus DMA tag appropriate for our PCI interface. 437 * 438 * Note that some of these controllers are 64-bit capable. 439 */ 440 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 441 PAGE_SIZE, 0, /* algnmnt, boundary */ 442 BUS_SPACE_MAXADDR, /* lowaddr */ 443 BUS_SPACE_MAXADDR, /* highaddr */ 444 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 445 BUS_SPACE_UNRESTRICTED, /* nsegments */ 446 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 447 0, /* flags */ 448 &sc->aac_parent_dmat)) { 449 device_printf(dev, "can't allocate parent DMA tag\n"); 450 goto out; 451 } 452 453 /* 454 * Do bus-independent initialisation. 455 */ 456 error = aac_attach(sc); 457 458 out: 459 if (error) 460 aac_free(sc); 461 return(error); 462 } 463 464 /* 465 * Do nothing driver that will attach to the SCSI channels of a Dell PERC 466 * controller. This is needed to keep the power management subsystem from 467 * trying to power down these devices. 468 */ 469 static int aacch_probe(device_t dev); 470 static int aacch_attach(device_t dev); 471 static int aacch_detach(device_t dev); 472 473 static device_method_t aacch_methods[] = { 474 /* Device interface */ 475 DEVMETHOD(device_probe, aacch_probe), 476 DEVMETHOD(device_attach, aacch_attach), 477 DEVMETHOD(device_detach, aacch_detach), 478 DEVMETHOD_END 479 }; 480 481 struct aacch_softc { 482 device_t dev; 483 }; 484 485 static driver_t aacch_driver = { 486 "aacch", 487 aacch_methods, 488 sizeof(struct aacch_softc) 489 }; 490 491 static devclass_t aacch_devclass; 492 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, NULL, NULL); 493 494 static int 495 aacch_probe(device_t dev) 496 { 497 498 if ((pci_get_vendor(dev) != 0x9005) || 499 (pci_get_device(dev) != 0x00c5)) 500 return (ENXIO); 501 502 device_set_desc(dev, "AAC RAID Channel"); 503 return (-10); 504 } 505 506 static int 507 aacch_attach(device_t dev __unused) 508 { 509 510 return (0); 511 } 512 513 static int 514 aacch_detach(device_t dev __unused) 515 { 516 517 return (0); 518 } 519