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 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 /* 34 * PCI bus interface and resource allocation. 35 */ 36 37 #include "opt_aac.h" 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/module.h> 43 44 #include <sys/bio.h> 45 #include <sys/bus.h> 46 #include <sys/conf.h> 47 #include <sys/disk.h> 48 49 #include <machine/bus.h> 50 #include <machine/resource.h> 51 #include <sys/rman.h> 52 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcivar.h> 55 56 #include <dev/aac/aacreg.h> 57 #include <sys/aac_ioctl.h> 58 #include <dev/aac/aacvar.h> 59 60 static int aac_pci_probe(device_t dev); 61 static int aac_pci_attach(device_t dev); 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(bus_print_child, bus_generic_print_child), 72 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 73 { 0, 0 } 74 }; 75 76 static driver_t aac_pci_driver = { 77 "aac", 78 aac_methods, 79 sizeof(struct aac_softc) 80 }; 81 82 static devclass_t aac_devclass; 83 84 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0); 85 MODULE_DEPEND(aac, pci, 1, 1, 1); 86 87 88 struct aac_ident 89 { 90 u_int16_t vendor; 91 u_int16_t device; 92 u_int16_t subvendor; 93 u_int16_t subdevice; 94 int hwif; 95 int quirks; 96 char *desc; 97 } aac_identifiers[] = { 98 {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0, 99 "Dell PERC 2/Si"}, 100 {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0, 101 "Dell PERC 3/Di"}, 102 {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0, 103 "Dell PERC 3/Si"}, 104 {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0, 105 "Dell PERC 3/Si"}, 106 {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0, 107 "Dell PERC 3/Di"}, 108 {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0, 109 "Dell PERC 3/Di"}, 110 {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0, 111 "Dell PERC 3/Di"}, 112 {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0, 113 "Dell PERC 3/Di"}, 114 {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0, 115 "Dell PERC 3/Di"}, 116 {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0, 117 "Adaptec AAC-364"}, 118 {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 119 AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"}, 120 {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC, 121 "Dell PERC 2/QC"}, 122 {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0, 123 "HP NetRaid-4M"}, 124 {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 125 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"}, 126 {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 127 AAC_FLAGS_256FIBS, "Dell PERC 320/DC"}, 128 {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 129 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"}, 130 {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 131 "Adaptec SATA RAID 2410SA"}, 132 {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 133 "Dell CERC SATA RAID 2"}, 134 {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 135 "Adaptec SATA RAID 2810SA"}, 136 {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 137 "Adaptec SATA RAID 21610SA"}, 138 {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB, 139 "HP ML110 G2 (Adaptec 2610SA)"}, 140 {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, 0, 141 "Adaptec SCSI RAID 2230S"}, 142 {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0, 143 "Adaptec SCSI RAID 2130S"}, 144 145 {0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 146 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"}, 147 {0x9005, 0x0285, 0x17aa, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 148 AAC_FLAGS_256FIBS, "Legend S220"}, 149 {0x9005, 0x0285, 0x17aa, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB | 150 AAC_FLAGS_256FIBS, "Legend S230"}, 151 {0x9005, 0x0285, 0x9005, 0x0288, AAC_HWIF_I960RX, 0, 152 "Adaptec SCSI RAID 3230S"}, 153 {0x9005, 0x0285, 0x9005, 0x0289, AAC_HWIF_I960RX, 0, 154 "Adaptec SCSI RAID 3240S"}, 155 {0x9005, 0x0285, 0x9005, 0x028a, AAC_HWIF_I960RX, 0, 156 "Adaptec SCSI RAID 2020ZCR"}, 157 {0x9005, 0x0285, 0x9005, 0x028b, AAC_HWIF_I960RX, 0, 158 "Adaptec SCSI RAID 2025ZCR"}, 159 {0x9005, 0x0286, 0x9005, 0x029b, AAC_HWIF_RKT, 0, 160 "Adaptec SATA RAID 2820SA"}, 161 {0x9005, 0x0286, 0x9005, 0x029c, AAC_HWIF_RKT, 0, 162 "Adaptec SATA RAID 2620SA"}, 163 {0x9005, 0x0286, 0x9005, 0x029d, AAC_HWIF_RKT, 0, 164 "Adaptec SATA RAID 2420SA"}, 165 {0x9005, 0x0286, 0x9005, 0x029e, AAC_HWIF_RKT, 0, 166 "ICP ICP9024RO SCSI RAID"}, 167 {0x9005, 0x0286, 0x9005, 0x029f, AAC_HWIF_RKT, 0, 168 "ICP ICP9014RO SCSI RAID"}, 169 {0x9005, 0x0285, 0x9005, 0x0294, AAC_HWIF_I960RX, 0, 170 "Adaptec SATA RAID 2026ZCR"}, 171 {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, 0, 172 "Adaptec SATA RAID 2610SA"}, 173 {0x9005, 0x0285, 0x9005, 0x0296, AAC_HWIF_I960RX, 0, 174 "Adaptec SCSI RAID 2240S"}, 175 {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0, 176 "Adaptec SAS RAID 4005SAS"}, 177 {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0, 178 "IBM ServeRAID 8i"}, 179 {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0, 180 "IBM ServeRAID 8i"}, 181 {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0, 182 "Adaptec SAS RAID 4000SAS"}, 183 {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0, 184 "Adaptec SAS RAID 4800SAS"}, 185 {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0, 186 "Adaptec SAS RAID 4805SAS"}, 187 {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0, 188 "Adaptec SATA RAID 2020SA ZCR"}, 189 {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0, 190 "Adaptec SATA RAID 2025SA ZCR"}, 191 {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0, 192 "ICP ICP9085LI SAS RAID"}, 193 {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0, 194 "ICP ICP5085BR SAS RAID"}, 195 {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0, 196 "ICP ICP9047MA SATA RAID"}, 197 {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0, 198 "ICP ICP9087MA SATA RAID"}, 199 {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0, 200 "ICP9067MA SATA RAID"}, 201 {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0, 202 "Adaptec RAID 5445"}, 203 {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0, 204 "Adaptec RAID 5805"}, 205 {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0, 206 "Adaptec RAID 5085"}, 207 {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0, 208 "ICP RAID ICP5445SL"}, 209 {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0, 210 "ICP RAID ICP5085SL"}, 211 {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0, 212 "ICP RAID ICP5805SL"}, 213 {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0, 214 "Adaptec RAID 3405"}, 215 {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0, 216 "Adaptec RAID 3805"}, 217 {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0, 218 "Adaptec RAID 31205"}, 219 {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0, 220 "Adaptec RAID 31605"}, 221 {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0, 222 "ICP RAID ICP5045BL"}, 223 {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0, 224 "ICP RAID ICP5085BL"}, 225 {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0, 226 "ICP RAID ICP5125BR"}, 227 {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0, 228 "ICP RAID ICP5165BR"}, 229 {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0, 230 "Adaptec RAID 51205"}, 231 {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0, 232 "Adaptec RAID 51605"}, 233 {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0, 234 "ICP RAID ICP5125SL"}, 235 {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0, 236 "ICP RAID ICP5165SL"}, 237 {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0, 238 "Adaptec RAID 3085"}, 239 {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0, 240 "ICP RAID ICP5805BL"}, 241 {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0, 242 "Adaptec RAID 51245"}, 243 {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0, 244 "Adaptec RAID 51645"}, 245 {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0, 246 "Adaptec RAID 52445"}, 247 {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0, 248 "Adaptec RAID 5405"}, 249 {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0, 250 "IBM ServeRAID-8k"}, 251 {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0, 252 "IBM ServeRAID 8s"}, 253 {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0, 254 "Sun STK RAID REM"}, 255 {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0, 256 "Sun STK RAID EM"}, 257 {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0, 258 "SG-XPCIESAS-R-IN"}, 259 {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0, 260 "SG-XPCIESAS-R-EX"}, 261 {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0, 262 "AOC-USAS-S4i"}, 263 {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0, 264 "AOC-USAS-S8i"}, 265 {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0, 266 "AOC-USAS-S4iR"}, 267 {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0, 268 "AOC-USAS-S8iR"}, 269 {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0, 270 "AOC-USAS-S8i-LP"}, 271 {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0, 272 "AOC-USAS-S8iR-LP"}, 273 {0, 0, 0, 0, 0, 0, 0} 274 }; 275 struct aac_ident 276 aac_family_identifiers[] = { 277 {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0, 278 "Adaptec RAID Controller"}, 279 {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0, 280 "Adaptec RAID Controller"}, 281 {0, 0, 0, 0, 0, 0, 0} 282 }; 283 284 static struct aac_ident * 285 aac_find_ident(device_t dev) 286 { 287 struct aac_ident *m; 288 u_int16_t vendid, devid, sub_vendid, sub_devid; 289 290 vendid = pci_get_vendor(dev); 291 devid = pci_get_device(dev); 292 sub_vendid = pci_get_subvendor(dev); 293 sub_devid = pci_get_subdevice(dev); 294 295 for (m = aac_identifiers; m->vendor != 0; m++) { 296 if ((m->vendor == vendid) && (m->device == devid) && 297 (m->subvendor == sub_vendid) && 298 (m->subdevice == sub_devid)) 299 return (m); 300 } 301 302 for (m = aac_family_identifiers; m->vendor != 0; m++) { 303 if ((m->vendor == vendid) && (m->device == devid)) 304 return (m); 305 } 306 307 return (NULL); 308 } 309 310 /* 311 * Determine whether this is one of our supported adapters. 312 */ 313 static int 314 aac_pci_probe(device_t dev) 315 { 316 struct aac_ident *id; 317 318 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 319 320 if ((id = aac_find_ident(dev)) != NULL) { 321 device_set_desc(dev, id->desc); 322 return(BUS_PROBE_DEFAULT); 323 } 324 return(ENXIO); 325 } 326 327 /* 328 * Allocate resources for our device, set up the bus interface. 329 */ 330 static int 331 aac_pci_attach(device_t dev) 332 { 333 struct aac_softc *sc; 334 struct aac_ident *id; 335 int error; 336 u_int32_t command; 337 338 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 339 340 /* 341 * Initialise softc. 342 */ 343 sc = device_get_softc(dev); 344 bzero(sc, sizeof(*sc)); 345 sc->aac_dev = dev; 346 347 /* assume failure is 'not configured' */ 348 error = ENXIO; 349 350 /* 351 * Verify that the adapter is correctly set up in PCI space. 352 */ 353 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 354 command |= PCIM_CMD_BUSMASTEREN; 355 pci_write_config(dev, PCIR_COMMAND, command, 2); 356 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 357 if (!(command & PCIM_CMD_BUSMASTEREN)) { 358 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 359 goto out; 360 } 361 if ((command & PCIM_CMD_MEMEN) == 0) { 362 device_printf(sc->aac_dev, "memory window not available\n"); 363 goto out; 364 } 365 366 /* 367 * Allocate the PCI register window. 368 */ 369 sc->aac_regs_rid = PCIR_BAR(0); 370 if ((sc->aac_regs_resource = bus_alloc_resource_any(sc->aac_dev, 371 SYS_RES_MEMORY, 372 &sc->aac_regs_rid, 373 RF_ACTIVE)) == 374 NULL) { 375 device_printf(sc->aac_dev, 376 "couldn't allocate register window\n"); 377 goto out; 378 } 379 sc->aac_btag = rman_get_bustag(sc->aac_regs_resource); 380 sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource); 381 382 /* assume failure is 'out of memory' */ 383 error = ENOMEM; 384 385 /* 386 * Allocate the parent bus DMA tag appropriate for our PCI interface. 387 * 388 * Note that some of these controllers are 64-bit capable. 389 */ 390 if (bus_dma_tag_create(NULL, /* parent */ 391 PAGE_SIZE, 0, /* algnmnt, boundary */ 392 BUS_SPACE_MAXADDR, /* lowaddr */ 393 BUS_SPACE_MAXADDR, /* highaddr */ 394 NULL, NULL, /* filter, filterarg */ 395 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 396 BUS_SPACE_UNRESTRICTED, /* nsegments */ 397 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 398 0, /* flags */ 399 NULL, NULL, /* No locking needed */ 400 &sc->aac_parent_dmat)) { 401 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 402 goto out; 403 } 404 405 /* 406 * Detect the hardware interface version, set up the bus interface 407 * indirection. 408 */ 409 id = aac_find_ident(dev); 410 sc->aac_hwif = id->hwif; 411 switch(sc->aac_hwif) { 412 case AAC_HWIF_I960RX: 413 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for i960Rx"); 414 sc->aac_if = aac_rx_interface; 415 break; 416 case AAC_HWIF_STRONGARM: 417 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for StrongARM"); 418 sc->aac_if = aac_sa_interface; 419 break; 420 case AAC_HWIF_FALCON: 421 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for Falcon/PPC"); 422 sc->aac_if = aac_fa_interface; 423 break; 424 case AAC_HWIF_RKT: 425 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for Rocket/MIPS"); 426 sc->aac_if = aac_rkt_interface; 427 break; 428 default: 429 sc->aac_hwif = AAC_HWIF_UNKNOWN; 430 device_printf(sc->aac_dev, "unknown hardware type\n"); 431 error = ENXIO; 432 goto out; 433 } 434 435 /* Set up quirks */ 436 sc->flags = id->quirks; 437 438 /* 439 * Do bus-independent initialisation. 440 */ 441 error = aac_attach(sc); 442 443 out: 444 if (error) 445 aac_free(sc); 446 return(error); 447 } 448 449 /* 450 * Do nothing driver that will attach to the SCSI channels of a Dell PERC 451 * controller. This is needed to keep the power management subsystem from 452 * trying to power down these devices. 453 */ 454 static int aacch_probe(device_t dev); 455 static int aacch_attach(device_t dev); 456 static int aacch_detach(device_t dev); 457 458 static device_method_t aacch_methods[] = { 459 /* Device interface */ 460 DEVMETHOD(device_probe, aacch_probe), 461 DEVMETHOD(device_attach, aacch_attach), 462 DEVMETHOD(device_detach, aacch_detach), 463 { 0, 0 } 464 }; 465 466 struct aacch_softc { 467 device_t dev; 468 }; 469 470 static driver_t aacch_driver = { 471 "aacch", 472 aacch_methods, 473 sizeof(struct aacch_softc) 474 }; 475 476 static devclass_t aacch_devclass; 477 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, 0, 0); 478 479 static int 480 aacch_probe(device_t dev) 481 { 482 483 if ((pci_get_vendor(dev) != 0x9005) || 484 (pci_get_device(dev) != 0x00c5)) 485 return (ENXIO); 486 487 device_set_desc(dev, "AAC RAID Channel"); 488 return (-10); 489 } 490 491 static int 492 aacch_attach(device_t dev) 493 { 494 struct aacch_softc *sc; 495 496 sc = device_get_softc(dev); 497 498 sc->dev = dev; 499 500 return (0); 501 } 502 503 static int 504 aacch_detach(device_t dev) 505 { 506 507 return (0); 508 } 509