sys/dev/raid/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  * $FreeBSD: src/sys/dev/aac/aac_pci.c,v 1.74 2010/04/13 01:16:15 emaste Exp $
  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 device_method_t aac_methods[] = {
  61         /* Device interface */
  62         DEVMETHOD(device_probe,         aac_pci_probe),
  63         DEVMETHOD(device_attach,        aac_pci_attach),
  64         DEVMETHOD(device_detach,        aac_detach),
  65         DEVMETHOD(device_suspend,       aac_suspend),
  66         DEVMETHOD(device_resume,        aac_resume),
  67
  68         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  69         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
  70         { 0, 0 }
  71 };
  72
  73 static driver_t aac_pci_driver = {
  74         "aac",
  75         aac_methods,
  76         sizeof(struct aac_softc)
  77 };
  78
  79 static devclass_t       aac_devclass;
  80
  81 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
  82 MODULE_DEPEND(aac, pci, 1, 1, 1);
  83
  84
  85 struct aac_ident
  86 {
  87         u_int16_t               vendor;
  88         u_int16_t               device;
  89         u_int16_t               subvendor;
  90         u_int16_t               subdevice;
  91         int                     hwif;
  92         int                     quirks;
  93         char                    *desc;
  94 } aac_identifiers[] = {
  95         {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
  96         "Dell PERC 2/Si"},
  97         {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
  98         "Dell PERC 3/Di"},
  99         {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
 100         "Dell PERC 3/Si"},
 101         {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
 102         "Dell PERC 3/Si"},
 103         {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
 104         "Dell PERC 3/Di"},
 105         {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
 106         "Dell PERC 3/Di"},
 107         {0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
 108         "Dell PERC 3/Di"},
 109         {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
 110         "Dell PERC 3/Di"},
 111         {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
 112         "Dell PERC 3/Di"},
 113         {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
 114         "Adaptec AAC-364"},
 115         {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM,
 116          AAC_FLAGS_BROKEN_MEMMAP, "Adaptec SCSI RAID 5400S"},
 117         {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
 118          "Dell PERC 2/QC"},
 119         {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
 120          "HP NetRaid-4M"},
 121         {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 122          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
 123         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 124          AAC_FLAGS_256FIBS, "Dell PERC 320/DC"},
 125         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 126          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"},
 127         {0x9005, 0x0285, 0x9005, 0x0290, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 128          "Adaptec SATA RAID 2410SA"},
 129         {0x9005, 0x0285, 0x1028, 0x0291, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 130          "Dell CERC SATA RAID 2"},
 131         {0x9005, 0x0285, 0x9005, 0x0292, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 132          "Adaptec SATA RAID 2810SA"},
 133         {0x9005, 0x0285, 0x9005, 0x0293, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 134          "Adaptec SATA RAID 21610SA"},
 135         {0x9005, 0x0285, 0x103c, 0x3227, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 136          "HP ML110 G2 (Adaptec 2610SA)"},
 137         {0x9005, 0x0286, 0x9005, 0x028c, AAC_HWIF_RKT, 0,
 138          "Adaptec SCSI RAID 2230S"},
 139         {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0,
 140          "Adaptec SCSI RAID 2130S"},
 141
 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, 0,
 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 struct aac_ident
 279 aac_family_identifiers[] = {
 280         {0x9005, 0x0285, 0, 0, AAC_HWIF_I960RX, 0,
 281          "Adaptec RAID Controller"},
 282         {0x9005, 0x0286, 0, 0, AAC_HWIF_RKT, 0,
 283          "Adaptec RAID Controller"},
 284         {0, 0, 0, 0, 0, 0, 0}
 285 };
 286
 287 static struct aac_ident *
 288 aac_find_ident(device_t dev)
 289 {
 290         struct aac_ident *m;
 291         u_int16_t vendid, devid, sub_vendid, sub_devid;
 292
 293         vendid = pci_get_vendor(dev);
 294         devid = pci_get_device(dev);
 295         sub_vendid = pci_get_subvendor(dev);
 296         sub_devid = pci_get_subdevice(dev);
 297
 298         for (m = aac_identifiers; m->vendor != 0; m++) {
 299                 if ((m->vendor == vendid) && (m->device == devid) &&
 300                     (m->subvendor == sub_vendid) &&
 301                     (m->subdevice == sub_devid))
 302                         return (m);
 303         }
 304
 305         for (m = aac_family_identifiers; m->vendor != 0; m++) {
 306                 if ((m->vendor == vendid) && (m->device == devid))
 307                         return (m);
 308         }
 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         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         struct aac_ident *id;
 338         int error;
 339         u_int32_t command;
 340
 341         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 342
 343         /*
 344          * Initialise softc.
 345          */
 346         sc = device_get_softc(dev);
 347         bzero(sc, sizeof(*sc));
 348         sc->aac_dev = dev;
 349
 350         /* assume failure is 'not configured' */
 351         error = ENXIO;
 352
 353         /*
 354          * Verify that the adapter is correctly set up in PCI space.
 355          */
 356         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 357         command |= PCIM_CMD_BUSMASTEREN;
 358         pci_write_config(dev, PCIR_COMMAND, command, 2);
 359         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 360         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 361                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 362                 goto out;
 363         }
 364         if ((command & PCIM_CMD_MEMEN) == 0) {
 365                 device_printf(sc->aac_dev, "memory window not available\n");
 366                 goto out;
 367         }
 368
 369         /*
 370          * Allocate the PCI register window.
 371          */
 372         sc->aac_regs_rid0 = PCIR_BAR(0);
 373         if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
 374             SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
 375                 device_printf(sc->aac_dev,
 376                     "couldn't allocate register window 0\n");
 377                 goto out;
 378         }
 379         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 380         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 381
 382         if (sc->aac_hwif == AAC_HWIF_NARK) {
 383                 sc->aac_regs_rid1 = PCIR_BAR(1);
 384                 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
 385                     SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
 386                         device_printf(sc->aac_dev,
 387                             "couldn't allocate register window 1\n");
 388                         goto out;
 389                 }
 390                 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 391                 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 392         } else {
 393                 sc->aac_regs_res1 = sc->aac_regs_res0;
 394                 sc->aac_regs_rid1 = sc->aac_regs_rid0;
 395                 sc->aac_btag1 = sc->aac_btag0;
 396                 sc->aac_bhandle1 = sc->aac_bhandle0;
 397         }
 398
 399         /*
 400          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 401          *
 402          * Note that some of these controllers are 64-bit capable.
 403          */
 404         if (bus_dma_tag_create(NULL,                    /* parent */
 405                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 406                                BUS_SPACE_MAXADDR,       /* lowaddr */
 407                                BUS_SPACE_MAXADDR,       /* highaddr */
 408                                NULL, NULL,              /* filter, filterarg */
 409                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 410                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 411                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 412                                0,                       /* flags */
 413                                &sc->aac_parent_dmat)) {
 414                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 415                 goto out;
 416         }
 417
 418         /*
 419          * Detect the hardware interface version, set up the bus interface
 420          * indirection.
 421          */
 422         id = aac_find_ident(dev);
 423         sc->aac_hwif = id->hwif;
 424         switch(sc->aac_hwif) {
 425         case AAC_HWIF_I960RX:
 426         case AAC_HWIF_NARK:
 427                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for i960Rx/NARK");
 428                 sc->aac_if = aac_rx_interface;
 429                 break;
 430         case AAC_HWIF_STRONGARM:
 431                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for StrongARM");
 432                 sc->aac_if = aac_sa_interface;
 433                 break;
 434         case AAC_HWIF_RKT:
 435                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for Rocket/MIPS");
 436                 sc->aac_if = aac_rkt_interface;
 437                 break;
 438         default:
 439                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 440                 device_printf(sc->aac_dev, "unknown hardware type\n");
 441                 error = ENXIO;
 442                 goto out;
 443         }
 444
 445         /* Set up quirks */
 446         sc->flags = id->quirks;
 447
 448         /*
 449          * Do bus-independent initialisation.
 450          */
 451         error = aac_attach(sc);
 452
 453 out:
 454         if (error)
 455                 aac_free(sc);
 456         return(error);
 457 }
 458
 459 /*
 460  * Do nothing driver that will attach to the SCSI channels of a Dell PERC
 461  * controller.  This is needed to keep the power management subsystem from
 462  * trying to power down these devices.
 463  */
 464 static int aacch_probe(device_t dev);
 465 static int aacch_attach(device_t dev);
 466 static int aacch_detach(device_t dev);
 467
 468 static device_method_t aacch_methods[] = {
 469         /* Device interface */
 470         DEVMETHOD(device_probe,         aacch_probe),
 471         DEVMETHOD(device_attach,        aacch_attach),
 472         DEVMETHOD(device_detach,        aacch_detach),
 473         { 0, 0 }
 474 };
 475
 476 struct aacch_softc {
 477         device_t        dev;
 478 };
 479
 480 static driver_t aacch_driver = {
 481         "aacch",
 482         aacch_methods,
 483         sizeof(struct aacch_softc)
 484 };
 485
 486 static devclass_t       aacch_devclass;
 487 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, 0, 0);
 488
 489 static int
 490 aacch_probe(device_t dev)
 491 {
 492
 493         if ((pci_get_vendor(dev) != 0x9005) ||
 494             (pci_get_device(dev) != 0x00c5))
 495                 return (ENXIO);
 496
 497         device_set_desc(dev, "AAC RAID Channel");
 498         return (-10);
 499 }
 500
 501 static int
 502 aacch_attach(device_t dev)
 503 {
 504         struct aacch_softc *sc;
 505
 506         sc = device_get_softc(dev);
 507
 508         sc->dev = dev;
 509
 510         return (0);
 511 }
 512
 513 static int
 514 aacch_detach(device_t dev)
 515 {
 516
 517         return (0);
 518 }