sys/dev/aac/aac_pci.c

   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 int aac_enable_msi = 1;
  64 SYSCTL_INT(_hw_aac, OID_AUTO, enable_msi, CTLFLAG_RDTUN, &aac_enable_msi, 0,
  65     "Enable MSI interrupts");
  66
  67 static device_method_t aac_methods[] = {
  68         /* Device interface */
  69         DEVMETHOD(device_probe,         aac_pci_probe),
  70         DEVMETHOD(device_attach,        aac_pci_attach),
  71         DEVMETHOD(device_detach,        aac_detach),
  72         DEVMETHOD(device_suspend,       aac_suspend),
  73         DEVMETHOD(device_resume,        aac_resume),
  74
  75         DEVMETHOD_END
  76 };
  77
  78 static driver_t aac_pci_driver = {
  79         "aac",
  80         aac_methods,
  81         sizeof(struct aac_softc)
  82 };
  83
  84 static devclass_t       aac_devclass;
  85
  86 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, NULL, NULL);
  87 MODULE_DEPEND(aac, pci, 1, 1, 1);
  88
  89 static const struct aac_ident
  90 {
  91         u_int16_t               vendor;
  92         u_int16_t               device;
  93         u_int16_t               subvendor;
  94         u_int16_t               subdevice;
  95         int                     hwif;
  96         int                     quirks;
  97         const char              *desc;
  98 } aac_identifiers[] = {
  99         {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
 100         "Dell PERC 2/Si"},
 101         {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
 102         "Dell PERC 3/Di"},
 103         {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
 104         "Dell PERC 3/Si"},
 105         {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
 106         "Dell PERC 3/Si"},
 107         {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
 108         "Dell PERC 3/Di"},
 109         {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
 110         "Dell PERC 3/Di"},
 111         {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
 112         "Dell PERC 3/Di"},
 113         {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
 114         "Dell PERC 3/Di"},
 115         {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
 116         "Dell PERC 3/Di"},
 117         {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
 118         "Adaptec AAC-364"},
 119         {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM,
 120          AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"},
 121         {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
 122          "Dell PERC 2/QC"},
 123         {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
 124          "HP NetRaid-4M"},
 125         {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 126          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
 127         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 128          AAC_FLAGS_256FIBS, "Dell PERC 320/DC"},
 129         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 130          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"},
 131         {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 132          "Adaptec SATA RAID 2410SA"},
 133         {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 134          "Dell CERC SATA RAID 2"},
 135         {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 136          "Adaptec SATA RAID 2810SA"},
 137         {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 138          "Adaptec SATA RAID 21610SA"},
 139         {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 140          "HP ML110 G2 (Adaptec 2610SA)"},
 141         {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, AAC_FLAGS_NOMSI,
 142          "Adaptec SCSI RAID 2230S"},
 143         {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0,
 144          "Adaptec SCSI RAID 2130S"},
 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, AAC_FLAGS_NOMSI,
 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, 0x9005, 0x0296, AAC_HWIF_I960RX, 0,
 172          "Adaptec SCSI RAID 2240S"},
 173         {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0,
 174          "Adaptec SAS RAID 4005SAS"},
 175         {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0,
 176          "IBM ServeRAID 8i"},
 177         {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0,
 178          "IBM ServeRAID 8i"},
 179         {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0,
 180          "Adaptec RAID 4000"},
 181         {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0,
 182          "Adaptec SAS RAID 4800SAS"},
 183         {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0,
 184          "Adaptec SAS RAID 4805SAS"},
 185         {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0,
 186          "Adaptec SATA RAID 2020SA ZCR"},
 187         {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0,
 188          "Adaptec SATA RAID 2025SA ZCR"},
 189         {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0,
 190          "ICP ICP9085LI SAS RAID"},
 191         {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0,
 192          "ICP ICP5085BR SAS RAID"},
 193         {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0,
 194          "ICP ICP9047MA SATA RAID"},
 195         {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0,
 196          "ICP ICP9087MA SATA RAID"},
 197         {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0,
 198          "ICP9067MA SATA RAID"},
 199         {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0,
 200          "Adaptec RAID 5445"},
 201         {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0,
 202          "Adaptec RAID 5805"},
 203         {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0,
 204          "Adaptec RAID 5085"},
 205         {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0,
 206          "ICP RAID ICP5445SL"},
 207         {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0,
 208          "ICP RAID ICP5085SL"},
 209         {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0,
 210          "ICP RAID ICP5805SL"},
 211         {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0,
 212          "Adaptec RAID 3405"},
 213         {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0,
 214          "Adaptec RAID 3805"},
 215         {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0,
 216          "Adaptec RAID 31205"},
 217         {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0,
 218          "Adaptec RAID 31605"},
 219         {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0,
 220          "ICP RAID ICP5045BL"},
 221         {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0,
 222          "ICP RAID ICP5085BL"},
 223         {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0,
 224          "ICP RAID ICP5125BR"},
 225         {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0,
 226          "ICP RAID ICP5165BR"},
 227         {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0,
 228          "Adaptec RAID 51205"},
 229         {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0,
 230          "Adaptec RAID 51605"},
 231         {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0,
 232          "ICP RAID ICP5125SL"},
 233         {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0,
 234          "ICP RAID ICP5165SL"},
 235         {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0,
 236          "Adaptec RAID 3085"},
 237         {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0,
 238          "ICP RAID ICP5805BL"},
 239         {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0,
 240          "Adaptec RAID 51245"},
 241         {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0,
 242          "Adaptec RAID 51645"},
 243         {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0,
 244          "Adaptec RAID 52445"},
 245         {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0,
 246          "Adaptec RAID 5405"},
 247         {0x9005, 0x0285, 0x9005, 0x02d4, AAC_HWIF_I960RX, 0,
 248          "Adaptec RAID 2045"},
 249         {0x9005, 0x0285, 0x9005, 0x02d5, AAC_HWIF_I960RX, 0,
 250          "Adaptec RAID 2405"},
 251         {0x9005, 0x0285, 0x9005, 0x02d6, AAC_HWIF_I960RX, 0,
 252          "Adaptec RAID 2445"},
 253         {0x9005, 0x0285, 0x9005, 0x02d7, AAC_HWIF_I960RX, 0,
 254          "Adaptec RAID 2805"},
 255         {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0,
 256          "IBM ServeRAID-8k"},
 257         {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0,
 258          "IBM ServeRAID 8s"},
 259         {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0,
 260          "Sun STK RAID REM"},
 261         {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0,
 262          "Sun STK RAID EM"},
 263         {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0,
 264          "SG-XPCIESAS-R-IN"},
 265         {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0,
 266          "SG-XPCIESAS-R-EX"},
 267         {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0,
 268          "AOC-USAS-S4i"},
 269         {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0,
 270          "AOC-USAS-S8i"},
 271         {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0,
 272          "AOC-USAS-S4iR"},
 273         {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0,
 274          "AOC-USAS-S8iR"},
 275         {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0,
 276          "AOC-USAS-S8i-LP"},
 277         {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0,
 278          "AOC-USAS-S8iR-LP"},
 279         {0, 0, 0, 0, 0, 0, 0}
 280 };
 281
 282 static const struct aac_ident
 283 aac_family_identifiers[] = {
 284         {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0,
 285          "Adaptec RAID Controller"},
 286         {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0,
 287          "Adaptec RAID Controller"},
 288         {0, 0, 0, 0, 0, 0, 0}
 289 };
 290
 291 static const struct aac_ident *
 292 aac_find_ident(device_t dev)
 293 {
 294         const struct aac_ident *m;
 295         u_int16_t vendid, devid, sub_vendid, sub_devid;
 296
 297         vendid = pci_get_vendor(dev);
 298         devid = pci_get_device(dev);
 299         sub_vendid = pci_get_subvendor(dev);
 300         sub_devid = pci_get_subdevice(dev);
 301
 302         for (m = aac_identifiers; m->vendor != 0; m++) {
 303                 if ((m->vendor == vendid) && (m->device == devid) &&
 304                     (m->subvendor == sub_vendid) &&
 305                     (m->subdevice == sub_devid))
 306                         return (m);
 307         }
 308
 309         for (m = aac_family_identifiers; m->vendor != 0; m++) {
 310                 if ((m->vendor == vendid) && (m->device == devid))
 311                         return (m);
 312         }
 313         return (NULL);
 314 }
 315
 316 /*
 317  * Determine whether this is one of our supported adapters.
 318  */
 319 static int
 320 aac_pci_probe(device_t dev)
 321 {
 322         const struct aac_ident *id;
 323
 324         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 325
 326         if ((id = aac_find_ident(dev)) != NULL) {
 327                 device_set_desc(dev, id->desc);
 328                 return(BUS_PROBE_DEFAULT);
 329         }
 330         return(ENXIO);
 331 }
 332
 333 /*
 334  * Allocate resources for our device, set up the bus interface.
 335  */
 336 static int
 337 aac_pci_attach(device_t dev)
 338 {
 339         struct aac_softc *sc;
 340         const struct aac_ident *id;
 341         int count, error, rid;
 342
 343         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 344
 345         /*
 346          * Initialise softc.
 347          */
 348         sc = device_get_softc(dev);
 349         sc->aac_dev = dev;
 350
 351         /* assume failure is 'not configured' */
 352         error = ENXIO;
 353
 354         /*
 355          * Verify that the adapter is correctly set up in PCI space.
 356          */
 357         pci_enable_busmaster(dev);
 358         if (!(pci_read_config(dev, PCIR_COMMAND, 2) & PCIM_CMD_BUSMASTEREN)) {
 359                 device_printf(dev, "can't enable bus-master feature\n");
 360                 goto out;
 361         }
 362
 363         /*
 364          * Detect the hardware interface version, set up the bus interface
 365          * indirection.
 366          */
 367         id = aac_find_ident(dev);
 368         sc->aac_hwif = id->hwif;
 369         switch(sc->aac_hwif) {
 370         case AAC_HWIF_I960RX:
 371         case AAC_HWIF_NARK:
 372                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
 373                     "set hardware up for i960Rx/NARK");
 374                 sc->aac_if = &aac_rx_interface;
 375                 break;
 376         case AAC_HWIF_STRONGARM:
 377                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
 378                     "set hardware up for StrongARM");
 379                 sc->aac_if = &aac_sa_interface;
 380                 break;
 381         case AAC_HWIF_RKT:
 382                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B,
 383                     "set hardware up for Rocket/MIPS");
 384                 sc->aac_if = &aac_rkt_interface;
 385                 break;
 386         default:
 387                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 388                 device_printf(dev, "unknown hardware type\n");
 389                 goto out;
 390         }
 391
 392         /* Set up quirks */
 393         sc->flags = id->quirks;
 394
 395         /*
 396          * Allocate the PCI register window(s).
 397          */
 398         rid = PCIR_BAR(0);
 399         if ((sc->aac_regs_res0 = bus_alloc_resource_any(dev,
 400             SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) {
 401                 device_printf(dev, "can't allocate register window 0\n");
 402                 goto out;
 403         }
 404         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 405         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 406
 407         if (sc->aac_hwif == AAC_HWIF_NARK) {
 408                 rid = PCIR_BAR(1);
 409                 if ((sc->aac_regs_res1 = bus_alloc_resource_any(dev,
 410                     SYS_RES_MEMORY, &rid, RF_ACTIVE)) == NULL) {
 411                         device_printf(dev,
 412                             "can't allocate register window 1\n");
 413                         goto out;
 414                 }
 415                 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 416                 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 417         } else {
 418                 sc->aac_regs_res1 = sc->aac_regs_res0;
 419                 sc->aac_btag1 = sc->aac_btag0;
 420                 sc->aac_bhandle1 = sc->aac_bhandle0;
 421         }
 422
 423         /*
 424          * Allocate the interrupt.
 425          */
 426         rid = 0;
 427         if (aac_enable_msi != 0 && (sc->flags & AAC_FLAGS_NOMSI) == 0) {
 428                 count = 1;
 429                 if (pci_alloc_msi(dev, &count) == 0)
 430                         rid = 1;
 431         }
 432         if ((sc->aac_irq = bus_alloc_resource_any(sc->aac_dev, SYS_RES_IRQ,
 433             &rid, RF_ACTIVE | (rid != 0 ? 0 : RF_SHAREABLE))) == NULL) {
 434                 device_printf(dev, "can't allocate interrupt\n");
 435                 goto out;
 436         }
 437
 438         /*
 439          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 440          *
 441          * Note that some of these controllers are 64-bit capable.
 442          */
 443         if (bus_dma_tag_create(bus_get_dma_tag(dev),    /* parent */
 444                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 445                                BUS_SPACE_MAXADDR,       /* lowaddr */
 446                                BUS_SPACE_MAXADDR,       /* highaddr */
 447                                NULL, NULL,              /* filter, filterarg */
 448                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 449                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 450                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 451                                0,                       /* flags */
 452                                NULL, NULL,              /* No locking needed */
 453                                &sc->aac_parent_dmat)) {
 454                 device_printf(dev, "can't allocate parent DMA tag\n");
 455                 goto out;
 456         }
 457
 458         /*
 459          * Do bus-independent initialisation.
 460          */
 461         error = aac_attach(sc);
 462
 463 out:
 464         if (error)
 465                 aac_free(sc);
 466         return(error);
 467 }
 468
 469 /*
 470  * Do nothing driver that will attach to the SCSI channels of a Dell PERC
 471  * controller.  This is needed to keep the power management subsystem from
 472  * trying to power down these devices.
 473  */
 474 static int aacch_probe(device_t dev);
 475 static int aacch_attach(device_t dev);
 476 static int aacch_detach(device_t dev);
 477
 478 static device_method_t aacch_methods[] = {
 479         /* Device interface */
 480         DEVMETHOD(device_probe,         aacch_probe),
 481         DEVMETHOD(device_attach,        aacch_attach),
 482         DEVMETHOD(device_detach,        aacch_detach),
 483         DEVMETHOD_END
 484 };
 485
 486 static driver_t aacch_driver = {
 487         "aacch",
 488         aacch_methods,
 489         1       /* no softc */
 490 };
 491
 492 static devclass_t       aacch_devclass;
 493 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, NULL, NULL);
 494
 495 static int
 496 aacch_probe(device_t dev)
 497 {
 498
 499         if ((pci_get_vendor(dev) != 0x9005) ||
 500             (pci_get_device(dev) != 0x00c5))
 501                 return (ENXIO);
 502
 503         device_set_desc(dev, "AAC RAID Channel");
 504         return (-10);
 505 }
 506
 507 static int
 508 aacch_attach(device_t dev __unused)
 509 {
 510
 511         return (0);
 512 }
 513
 514 static int
 515 aacch_detach(device_t dev __unused)
 516 {
 517
 518         return (0);
 519 }