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 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, 0, 0);
  83 MODULE_DEPEND(aac, pci, 1, 1, 1);
  84
  85
  86 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         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, 0,
 139          "Adaptec SCSI RAID 2230S"},
 140         {0x9005, 0x0286, 0x9005, 0x028d, AAC_HWIF_RKT, 0,
 141          "Adaptec SCSI RAID 2130S"},
 142
 143         {0x9005, 0x0285, 0x9005, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 144          AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
 145         {0x9005, 0x0285, 0x17aa, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 146          AAC_FLAGS_256FIBS, "Legend S220"},
 147         {0x9005, 0x0285, 0x17aa, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
 148          AAC_FLAGS_256FIBS, "Legend S230"},
 149         {0x9005, 0x0285, 0x9005, 0x0288, AAC_HWIF_I960RX, 0,
 150          "Adaptec SCSI RAID 3230S"},
 151         {0x9005, 0x0285, 0x9005, 0x0289, AAC_HWIF_I960RX, 0,
 152          "Adaptec SCSI RAID 3240S"},
 153         {0x9005, 0x0285, 0x9005, 0x028a, AAC_HWIF_I960RX, 0,
 154          "Adaptec SCSI RAID 2020ZCR"},
 155         {0x9005, 0x0285, 0x9005, 0x028b, AAC_HWIF_I960RX, 0,
 156          "Adaptec SCSI RAID 2025ZCR"},
 157         {0x9005, 0x0286, 0x9005, 0x029b, AAC_HWIF_RKT, 0,
 158          "Adaptec SATA RAID 2820SA"},
 159         {0x9005, 0x0286, 0x9005, 0x029c, AAC_HWIF_RKT, 0,
 160          "Adaptec SATA RAID 2620SA"},
 161         {0x9005, 0x0286, 0x9005, 0x029d, AAC_HWIF_RKT, 0,
 162          "Adaptec SATA RAID 2420SA"},
 163         {0x9005, 0x0286, 0x9005, 0x029e, AAC_HWIF_RKT, 0,
 164          "ICP ICP9024RO SCSI RAID"},
 165         {0x9005, 0x0286, 0x9005, 0x029f, AAC_HWIF_RKT, 0,
 166          "ICP ICP9014RO SCSI RAID"},
 167         {0x9005, 0x0285, 0x9005, 0x0294, AAC_HWIF_I960RX, 0,
 168          "Adaptec SATA RAID 2026ZCR"},
 169         {0x9005, 0x0285, 0x9005, 0x0296, AAC_HWIF_I960RX, 0,
 170          "Adaptec SCSI RAID 2240S"},
 171         {0x9005, 0x0285, 0x9005, 0x0297, AAC_HWIF_I960RX, 0,
 172          "Adaptec SAS RAID 4005SAS"},
 173         {0x9005, 0x0285, 0x1014, 0x02f2, AAC_HWIF_I960RX, 0,
 174          "IBM ServeRAID 8i"},
 175         {0x9005, 0x0285, 0x1014, 0x0312, AAC_HWIF_I960RX, 0,
 176          "IBM ServeRAID 8i"},
 177         {0x9005, 0x0285, 0x9005, 0x0298, AAC_HWIF_I960RX, 0,
 178          "Adaptec RAID 4000"},
 179         {0x9005, 0x0285, 0x9005, 0x0299, AAC_HWIF_I960RX, 0,
 180          "Adaptec SAS RAID 4800SAS"},
 181         {0x9005, 0x0285, 0x9005, 0x029a, AAC_HWIF_I960RX, 0,
 182          "Adaptec SAS RAID 4805SAS"},
 183         {0x9005, 0x0285, 0x9005, 0x028e, AAC_HWIF_I960RX, 0,
 184          "Adaptec SATA RAID 2020SA ZCR"},
 185         {0x9005, 0x0285, 0x9005, 0x028f, AAC_HWIF_I960RX, 0,
 186          "Adaptec SATA RAID 2025SA ZCR"},
 187         {0x9005, 0x0285, 0x9005, 0x02a4, AAC_HWIF_I960RX, 0,
 188          "ICP ICP9085LI SAS RAID"},
 189         {0x9005, 0x0285, 0x9005, 0x02a5, AAC_HWIF_I960RX, 0,
 190          "ICP ICP5085BR SAS RAID"},
 191         {0x9005, 0x0286, 0x9005, 0x02a0, AAC_HWIF_RKT, 0,
 192          "ICP ICP9047MA SATA RAID"},
 193         {0x9005, 0x0286, 0x9005, 0x02a1, AAC_HWIF_RKT, 0,
 194          "ICP ICP9087MA SATA RAID"},
 195         {0x9005, 0x0286, 0x9005, 0x02a6, AAC_HWIF_RKT, 0,
 196          "ICP9067MA SATA RAID"},
 197         {0x9005, 0x0285, 0x9005, 0x02b5, AAC_HWIF_I960RX, 0,
 198          "Adaptec RAID 5445"},
 199         {0x9005, 0x0285, 0x9005, 0x02b6, AAC_HWIF_I960RX, 0,
 200          "Adaptec RAID 5805"},
 201         {0x9005, 0x0285, 0x9005, 0x02b7, AAC_HWIF_I960RX, 0,
 202          "Adaptec RAID 5085"},
 203         {0x9005, 0x0285, 0x9005, 0x02b8, AAC_HWIF_I960RX, 0,
 204          "ICP RAID ICP5445SL"},
 205         {0x9005, 0x0285, 0x9005, 0x02b9, AAC_HWIF_I960RX, 0,
 206          "ICP RAID ICP5085SL"},
 207         {0x9005, 0x0285, 0x9005, 0x02ba, AAC_HWIF_I960RX, 0,
 208          "ICP RAID ICP5805SL"},
 209         {0x9005, 0x0285, 0x9005, 0x02bb, AAC_HWIF_I960RX, 0,
 210          "Adaptec RAID 3405"},
 211         {0x9005, 0x0285, 0x9005, 0x02bc, AAC_HWIF_I960RX, 0,
 212          "Adaptec RAID 3805"},
 213         {0x9005, 0x0285, 0x9005, 0x02bd, AAC_HWIF_I960RX, 0,
 214          "Adaptec RAID 31205"},
 215         {0x9005, 0x0285, 0x9005, 0x02be, AAC_HWIF_I960RX, 0,
 216          "Adaptec RAID 31605"},
 217         {0x9005, 0x0285, 0x9005, 0x02bf, AAC_HWIF_I960RX, 0,
 218          "ICP RAID ICP5045BL"},
 219         {0x9005, 0x0285, 0x9005, 0x02c0, AAC_HWIF_I960RX, 0,
 220          "ICP RAID ICP5085BL"},
 221         {0x9005, 0x0285, 0x9005, 0x02c1, AAC_HWIF_I960RX, 0,
 222          "ICP RAID ICP5125BR"},
 223         {0x9005, 0x0285, 0x9005, 0x02c2, AAC_HWIF_I960RX, 0,
 224          "ICP RAID ICP5165BR"},
 225         {0x9005, 0x0285, 0x9005, 0x02c3, AAC_HWIF_I960RX, 0,
 226          "Adaptec RAID 51205"},
 227         {0x9005, 0x0285, 0x9005, 0x02c4, AAC_HWIF_I960RX, 0,
 228          "Adaptec RAID 51605"},
 229         {0x9005, 0x0285, 0x9005, 0x02c5, AAC_HWIF_I960RX, 0,
 230          "ICP RAID ICP5125SL"},
 231         {0x9005, 0x0285, 0x9005, 0x02c6, AAC_HWIF_I960RX, 0,
 232          "ICP RAID ICP5165SL"},
 233         {0x9005, 0x0285, 0x9005, 0x02c7, AAC_HWIF_I960RX, 0,
 234          "Adaptec RAID 3085"},
 235         {0x9005, 0x0285, 0x9005, 0x02c8, AAC_HWIF_I960RX, 0,
 236          "ICP RAID ICP5805BL"},
 237         {0x9005, 0x0285, 0x9005, 0x02ce, AAC_HWIF_I960RX, 0,
 238          "Adaptec RAID 51245"},
 239         {0x9005, 0x0285, 0x9005, 0x02cf, AAC_HWIF_I960RX, 0,
 240          "Adaptec RAID 51645"},
 241         {0x9005, 0x0285, 0x9005, 0x02d0, AAC_HWIF_I960RX, 0,
 242          "Adaptec RAID 52445"},
 243         {0x9005, 0x0285, 0x9005, 0x02d1, AAC_HWIF_I960RX, 0,
 244          "Adaptec RAID 5405"},
 245         {0x9005, 0x0285, 0x9005, 0x02d4, AAC_HWIF_I960RX, 0,
 246          "Adaptec RAID 2045"},
 247         {0x9005, 0x0285, 0x9005, 0x02d5, AAC_HWIF_I960RX, 0,
 248          "Adaptec RAID 2405"},
 249         {0x9005, 0x0285, 0x9005, 0x02d6, AAC_HWIF_I960RX, 0,
 250          "Adaptec RAID 2445"},
 251         {0x9005, 0x0285, 0x9005, 0x02d7, AAC_HWIF_I960RX, 0,
 252          "Adaptec RAID 2805"},
 253         {0x9005, 0x0286, 0x1014, 0x9580, AAC_HWIF_RKT, 0,
 254          "IBM ServeRAID-8k"},
 255         {0x9005, 0x0285, 0x1014, 0x034d, AAC_HWIF_I960RX, 0,
 256          "IBM ServeRAID 8s"},
 257         {0x9005, 0x0285, 0x108e, 0x7aac, AAC_HWIF_I960RX, 0,
 258          "Sun STK RAID REM"},
 259         {0x9005, 0x0285, 0x108e, 0x7aae, AAC_HWIF_I960RX, 0,
 260          "Sun STK RAID EM"},
 261         {0x9005, 0x0285, 0x108e, 0x286, AAC_HWIF_I960RX, 0,
 262          "SG-XPCIESAS-R-IN"},
 263         {0x9005, 0x0285, 0x108e, 0x287, AAC_HWIF_I960RX, 0,
 264          "SG-XPCIESAS-R-EX"},
 265         {0x9005, 0x0285, 0x15d9, 0x2b5, AAC_HWIF_I960RX, 0,
 266          "AOC-USAS-S4i"},
 267         {0x9005, 0x0285, 0x15d9, 0x2b6, AAC_HWIF_I960RX, 0,
 268          "AOC-USAS-S8i"},
 269         {0x9005, 0x0285, 0x15d9, 0x2c9, AAC_HWIF_I960RX, 0,
 270          "AOC-USAS-S4iR"},
 271         {0x9005, 0x0285, 0x15d9, 0x2ca, AAC_HWIF_I960RX, 0,
 272          "AOC-USAS-S8iR"},
 273         {0x9005, 0x0285, 0x15d9, 0x2d2, AAC_HWIF_I960RX, 0,
 274          "AOC-USAS-S8i-LP"},
 275         {0x9005, 0x0285, 0x15d9, 0x2d3, AAC_HWIF_I960RX, 0,
 276          "AOC-USAS-S8iR-LP"},
 277         {0, 0, 0, 0, 0, 0, 0}
 278 };
 279 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 struct aac_ident *
 289 aac_find_ident(device_t dev)
 290 {
 291         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
 311         return (NULL);
 312 }
 313
 314 /*
 315  * Determine whether this is one of our supported adapters.
 316  */
 317 static int
 318 aac_pci_probe(device_t dev)
 319 {
 320         struct aac_ident *id;
 321
 322         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 323
 324         if ((id = aac_find_ident(dev)) != NULL) {
 325                 device_set_desc(dev, id->desc);
 326                 return(BUS_PROBE_DEFAULT);
 327         }
 328         return(ENXIO);
 329 }
 330
 331 /*
 332  * Allocate resources for our device, set up the bus interface.
 333  */
 334 static int
 335 aac_pci_attach(device_t dev)
 336 {
 337         struct aac_softc *sc;
 338         struct aac_ident *id;
 339         int error;
 340         u_int32_t command;
 341
 342         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 343
 344         /*
 345          * Initialise softc.
 346          */
 347         sc = device_get_softc(dev);
 348         bzero(sc, sizeof(*sc));
 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         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 358         command |= PCIM_CMD_BUSMASTEREN;
 359         pci_write_config(dev, PCIR_COMMAND, command, 2);
 360         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 361         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 362                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 363                 goto out;
 364         }
 365         if ((command & PCIM_CMD_MEMEN) == 0) {
 366                 device_printf(sc->aac_dev, "memory window not available\n");
 367                 goto out;
 368         }
 369
 370         /*
 371          * Allocate the PCI register window.
 372          */
 373         sc->aac_regs_rid0 = PCIR_BAR(0);
 374         if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
 375             SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
 376                 device_printf(sc->aac_dev,
 377                     "couldn't allocate register window 0\n");
 378                 goto out;
 379         }
 380         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 381         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 382
 383         if (sc->aac_hwif == AAC_HWIF_NARK) {
 384                 sc->aac_regs_rid1 = PCIR_BAR(1);
 385                 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
 386                     SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
 387                         device_printf(sc->aac_dev,
 388                             "couldn't allocate register window 1\n");
 389                         goto out;
 390                 }
 391                 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 392                 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 393         } else {
 394                 sc->aac_regs_res1 = sc->aac_regs_res0;
 395                 sc->aac_regs_rid1 = sc->aac_regs_rid0;
 396                 sc->aac_btag1 = sc->aac_btag0;
 397                 sc->aac_bhandle1 = sc->aac_bhandle0;
 398         }
 399
 400         /*
 401          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 402          *
 403          * Note that some of these controllers are 64-bit capable.
 404          */
 405         if (bus_dma_tag_create(bus_get_dma_tag(sc->aac_dev), /* parent */
 406                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 407                                BUS_SPACE_MAXADDR,       /* lowaddr */
 408                                BUS_SPACE_MAXADDR,       /* highaddr */
 409                                NULL, NULL,              /* filter, filterarg */
 410                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 411                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 412                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 413                                0,                       /* flags */
 414                                NULL, NULL,              /* No locking needed */
 415                                &sc->aac_parent_dmat)) {
 416                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 417                 goto out;
 418         }
 419
 420         /*
 421          * Detect the hardware interface version, set up the bus interface
 422          * indirection.
 423          */
 424         id = aac_find_ident(dev);
 425         sc->aac_hwif = id->hwif;
 426         switch(sc->aac_hwif) {
 427         case AAC_HWIF_I960RX:
 428         case AAC_HWIF_NARK:
 429                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for i960Rx/NARK");
 430                 sc->aac_if = aac_rx_interface;
 431                 break;
 432         case AAC_HWIF_STRONGARM:
 433                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for StrongARM");
 434                 sc->aac_if = aac_sa_interface;
 435                 break;
 436         case AAC_HWIF_RKT:
 437                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for Rocket/MIPS");
 438                 sc->aac_if = aac_rkt_interface;
 439                 break;
 440         default:
 441                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 442                 device_printf(sc->aac_dev, "unknown hardware type\n");
 443                 error = ENXIO;
 444                 goto out;
 445         }
 446
 447         /* Set up quirks */
 448         sc->flags = id->quirks;
 449
 450         /*
 451          * Do bus-independent initialisation.
 452          */
 453         error = aac_attach(sc);
 454
 455 out:
 456         if (error)
 457                 aac_free(sc);
 458         return(error);
 459 }
 460
 461 /*
 462  * Do nothing driver that will attach to the SCSI channels of a Dell PERC
 463  * controller.  This is needed to keep the power management subsystem from
 464  * trying to power down these devices.
 465  */
 466 static int aacch_probe(device_t dev);
 467 static int aacch_attach(device_t dev);
 468 static int aacch_detach(device_t dev);
 469
 470 static device_method_t aacch_methods[] = {
 471         /* Device interface */
 472         DEVMETHOD(device_probe,         aacch_probe),
 473         DEVMETHOD(device_attach,        aacch_attach),
 474         DEVMETHOD(device_detach,        aacch_detach),
 475         { 0, 0 }
 476 };
 477
 478 struct aacch_softc {
 479         device_t        dev;
 480 };
 481
 482 static driver_t aacch_driver = {
 483         "aacch",
 484         aacch_methods,
 485         sizeof(struct aacch_softc)
 486 };
 487
 488 static devclass_t       aacch_devclass;
 489 DRIVER_MODULE(aacch, pci, aacch_driver, aacch_devclass, 0, 0);
 490
 491 static int
 492 aacch_probe(device_t dev)
 493 {
 494
 495         if ((pci_get_vendor(dev) != 0x9005) ||
 496             (pci_get_device(dev) != 0x00c5))
 497                 return (ENXIO);
 498
 499         device_set_desc(dev, "AAC RAID Channel");
 500         return (-10);
 501 }
 502
 503 static int
 504 aacch_attach(device_t dev)
 505 {
 506         struct aacch_softc *sc;
 507
 508         sc = device_get_softc(dev);
 509
 510         sc->dev = dev;
 511
 512         return (0);
 513 }
 514
 515 static int
 516 aacch_detach(device_t dev)
 517 {
 518
 519         return (0);
 520 }