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 1.3.2.18 2003/04/08 13:22:08 scottl Exp $
  30  *      $DragonFly: src/sys/dev/raid/aac/aac_pci.c,v 1.3 2003/08/07 21:17:07 dillon Exp $
  31  */
  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
  43 #include "aac_compat.h"
  44 #include <sys/bus.h>
  45 #include <sys/conf.h>
  46 #include <sys/devicestat.h>
  47 #include <sys/disk.h>
  48
  49 #include <machine/bus_memio.h>
  50 #include <machine/bus.h>
  51 #include <machine/resource.h>
  52 #include <sys/rman.h>
  53
  54 #include <bus/pci/pcireg.h>
  55 #include <bus/pci/pcivar.h>
  56
  57 #include "aacreg.h"
  58 #include "aac_ioctl.h"
  59 #include "aacvar.h"
  60
  61 static int      aac_pci_probe(device_t dev);
  62 static int      aac_pci_attach(device_t dev);
  63
  64 static device_method_t aac_methods[] = {
  65         /* Device interface */
  66         DEVMETHOD(device_probe,         aac_pci_probe),
  67         DEVMETHOD(device_attach,        aac_pci_attach),
  68         DEVMETHOD(device_detach,        aac_detach),
  69         DEVMETHOD(device_suspend,       aac_suspend),
  70         DEVMETHOD(device_resume,        aac_resume),
  71
  72         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  73         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
  74         { 0, 0 }
  75 };
  76
  77 static driver_t aac_pci_driver = {
  78         "aac",
  79         aac_methods,
  80         sizeof(struct aac_softc)
  81 };
  82
  83 devclass_t      aac_devclass;
  84
  85 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
  86
  87 struct aac_ident
  88 {
  89         u_int16_t               vendor;
  90         u_int16_t               device;
  91         u_int16_t               subvendor;
  92         u_int16_t               subdevice;
  93         int                     hwif;
  94         int                     quirks;
  95         char                    *desc;
  96 } aac_identifiers[] = {
  97         {0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
  98         "Dell PERC 2/Si"},
  99         {0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
 100         "Dell PERC 3/Di"},
 101         {0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
 102         "Dell PERC 3/Si"},
 103         {0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
 104         "Dell PERC 3/Si"},
 105         {0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
 106         "Dell PERC 3/Di"},
 107         {0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
 108         "Dell PERC 3/Di"},
 109         {0x1028, 0x0008, 0x1028, 0x00cf, 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, 0,
 120         "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         "Adaptec SCSI RAID 2200S"},
 127         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 128         "Dell PERC 320/DC"},
 129         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 130         "Adaptec SCSI RAID 2120S"},
 131         {0, 0, 0, 0, 0, 0, 0}
 132 };
 133
 134 /*
 135  * Determine whether this is one of our supported adapters.
 136  */
 137 static int
 138 aac_pci_probe(device_t dev)
 139 {
 140         struct aac_ident *m;
 141
 142         debug_called(1);
 143
 144         for (m = aac_identifiers; m->vendor != 0; m++) {
 145                 if ((m->vendor == pci_get_vendor(dev)) &&
 146                     (m->device == pci_get_device(dev)) &&
 147                     ((m->subvendor == 0) || (m->subvendor ==
 148                                              pci_get_subvendor(dev))) &&
 149                     ((m->subdevice == 0) || ((m->subdevice ==
 150                                               pci_get_subdevice(dev))))) {
 151
 152                         device_set_desc(dev, m->desc);
 153                         return(-10);    /* allow room to be overridden */
 154                 }
 155         }
 156         return(ENXIO);
 157 }
 158
 159 /*
 160  * Allocate resources for our device, set up the bus interface.
 161  */
 162 static int
 163 aac_pci_attach(device_t dev)
 164 {
 165         struct aac_softc *sc;
 166         int i, error;
 167         u_int32_t command;
 168
 169         debug_called(1);
 170
 171         /*
 172          * Initialise softc.
 173          */
 174         sc = device_get_softc(dev);
 175         bzero(sc, sizeof(*sc));
 176         sc->aac_dev = dev;
 177
 178         /* assume failure is 'not configured' */
 179         error = ENXIO;
 180
 181         /*
 182          * Verify that the adapter is correctly set up in PCI space.
 183          */
 184         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 185         command |= PCIM_CMD_BUSMASTEREN;
 186         pci_write_config(dev, PCIR_COMMAND, command, 2);
 187         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 188         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 189                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 190                 goto out;
 191         }
 192         if ((command & PCIM_CMD_MEMEN) == 0) {
 193                 device_printf(sc->aac_dev, "memory window not available\n");
 194                 goto out;
 195         }
 196
 197         /*
 198          * Allocate the PCI register window.
 199          */
 200         sc->aac_regs_rid = 0x10;        /* first base address register */
 201         if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev,
 202                                                         SYS_RES_MEMORY,
 203                                                         &sc->aac_regs_rid,
 204                                                         0, ~0, 1,
 205                                                         RF_ACTIVE)) == NULL) {
 206                 device_printf(sc->aac_dev,
 207                               "couldn't allocate register window\n");
 208                 goto out;
 209         }
 210         sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
 211         sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
 212
 213         /*
 214          * Allocate and connect our interrupt.
 215          */
 216         sc->aac_irq_rid = 0;
 217         if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ,
 218                                               &sc->aac_irq_rid, 0, ~0, 1,
 219                                               RF_SHAREABLE |
 220                                               RF_ACTIVE)) == NULL) {
 221                 device_printf(sc->aac_dev, "can't allocate interrupt\n");
 222                 goto out;
 223         }
 224 #ifndef INTR_ENTROPY
 225 #define INTR_ENTROPY 0
 226 #endif
 227         if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY,
 228                            aac_intr, sc, &sc->aac_intr)) {
 229                 device_printf(sc->aac_dev, "can't set up interrupt\n");
 230                 goto out;
 231         }
 232
 233         /* assume failure is 'out of memory' */
 234         error = ENOMEM;
 235
 236         /*
 237          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 238          *
 239          * Note that some of these controllers are 64-bit capable.
 240          */
 241         if (bus_dma_tag_create(NULL,                    /* parent */
 242                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 243                                BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
 244                                BUS_SPACE_MAXADDR,       /* highaddr */
 245                                NULL, NULL,              /* filter, filterarg */
 246                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 247                                AAC_MAXSGENTRIES,        /* nsegments */
 248                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 249                                0,                       /* flags */
 250                                &sc->aac_parent_dmat)) {
 251                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 252                 goto out;
 253         }
 254
 255         /*
 256          * Detect the hardware interface version, set up the bus interface
 257          * indirection.
 258          */
 259         sc->aac_hwif = AAC_HWIF_UNKNOWN;
 260         for (i = 0; aac_identifiers[i].vendor != 0; i++) {
 261                 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
 262                     (aac_identifiers[i].device == pci_get_device(dev)) &&
 263                     (aac_identifiers[i].subvendor == pci_get_subvendor(dev)) &&
 264                     (aac_identifiers[i].subdevice == pci_get_subdevice(dev))) {
 265                         sc->aac_hwif = aac_identifiers[i].hwif;
 266                         switch(sc->aac_hwif) {
 267                         case AAC_HWIF_I960RX:
 268                                 debug(2, "set hardware up for i960Rx");
 269                                 sc->aac_if = aac_rx_interface;
 270                                 break;
 271
 272                         case AAC_HWIF_STRONGARM:
 273                                 debug(2, "set hardware up for StrongARM");
 274                                 sc->aac_if = aac_sa_interface;
 275                                 break;
 276                         case AAC_HWIF_FALCON:
 277                                 debug(2, "set hardware up for Falcon/PPC");
 278                                 sc->aac_if = aac_fa_interface;
 279                                 break;
 280                         }
 281
 282                         /* Set up quirks */
 283                         sc->flags = aac_identifiers[i].quirks;
 284
 285                         break;
 286                 }
 287         }
 288         if (sc->aac_hwif == AAC_HWIF_UNKNOWN) {
 289                 device_printf(sc->aac_dev, "unknown hardware type\n");
 290                 error = ENXIO;
 291                 goto out;
 292         }
 293
 294
 295         /*
 296          * Do bus-independent initialisation.
 297          */
 298         error = aac_attach(sc);
 299
 300 out:
 301         if (error)
 302                 aac_free(sc);
 303         return(error);
 304 }