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  */
  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
  42 #include <dev/aac/aac_compat.h>
  43 #include <sys/bus.h>
  44 #include <sys/conf.h>
  45 #include <sys/devicestat.h>
  46 #include <sys/disk.h>
  47
  48 #include <machine/bus_memio.h>
  49 #include <machine/bus.h>
  50 #include <machine/resource.h>
  51 #include <sys/rman.h>
  52
  53 #include <pci/pcireg.h>
  54 #include <pci/pcivar.h>
  55
  56 #include <dev/aac/aacreg.h>
  57 #include <dev/aac/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 devclass_t      aac_devclass;
  83
  84 DRIVER_MODULE(aac, pci, aac_pci_driver, aac_devclass, 0, 0);
  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, 0x0008, 0x1028, 0x00cf, 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, 0,
 119         "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         "Adaptec SCSI RAID 2200S"},
 126         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 127         "Dell PERC 320/DC"},
 128         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 129         "Adaptec SCSI RAID 2120S"},
 130         {0, 0, 0, 0, 0, 0, 0}
 131 };
 132
 133 /*
 134  * Determine whether this is one of our supported adapters.
 135  */
 136 static int
 137 aac_pci_probe(device_t dev)
 138 {
 139         struct aac_ident *m;
 140
 141         debug_called(1);
 142
 143         for (m = aac_identifiers; m->vendor != 0; m++) {
 144                 if ((m->vendor == pci_get_vendor(dev)) &&
 145                     (m->device == pci_get_device(dev)) &&
 146                     ((m->subvendor == 0) || (m->subvendor ==
 147                                              pci_get_subvendor(dev))) &&
 148                     ((m->subdevice == 0) || ((m->subdevice ==
 149                                               pci_get_subdevice(dev))))) {
 150
 151                         device_set_desc(dev, m->desc);
 152                         return(-10);    /* allow room to be overridden */
 153                 }
 154         }
 155         return(ENXIO);
 156 }
 157
 158 /*
 159  * Allocate resources for our device, set up the bus interface.
 160  */
 161 static int
 162 aac_pci_attach(device_t dev)
 163 {
 164         struct aac_softc *sc;
 165         int i, error;
 166         u_int32_t command;
 167
 168         debug_called(1);
 169
 170         /*
 171          * Initialise softc.
 172          */
 173         sc = device_get_softc(dev);
 174         bzero(sc, sizeof(*sc));
 175         sc->aac_dev = dev;
 176
 177         /* assume failure is 'not configured' */
 178         error = ENXIO;
 179
 180         /*
 181          * Verify that the adapter is correctly set up in PCI space.
 182          */
 183         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 184         command |= PCIM_CMD_BUSMASTEREN;
 185         pci_write_config(dev, PCIR_COMMAND, command, 2);
 186         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 187         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 188                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 189                 goto out;
 190         }
 191         if ((command & PCIM_CMD_MEMEN) == 0) {
 192                 device_printf(sc->aac_dev, "memory window not available\n");
 193                 goto out;
 194         }
 195
 196         /*
 197          * Allocate the PCI register window.
 198          */
 199         sc->aac_regs_rid = 0x10;        /* first base address register */
 200         if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev,
 201                                                         SYS_RES_MEMORY,
 202                                                         &sc->aac_regs_rid,
 203                                                         0, ~0, 1,
 204                                                         RF_ACTIVE)) == NULL) {
 205                 device_printf(sc->aac_dev,
 206                               "couldn't allocate register window\n");
 207                 goto out;
 208         }
 209         sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
 210         sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
 211
 212         /*
 213          * Allocate and connect our interrupt.
 214          */
 215         sc->aac_irq_rid = 0;
 216         if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ,
 217                                               &sc->aac_irq_rid, 0, ~0, 1,
 218                                               RF_SHAREABLE |
 219                                               RF_ACTIVE)) == NULL) {
 220                 device_printf(sc->aac_dev, "can't allocate interrupt\n");
 221                 goto out;
 222         }
 223 #ifndef INTR_ENTROPY
 224 #define INTR_ENTROPY 0
 225 #endif
 226         if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY,
 227                            aac_intr, sc, &sc->aac_intr)) {
 228                 device_printf(sc->aac_dev, "can't set up interrupt\n");
 229                 goto out;
 230         }
 231
 232         /* assume failure is 'out of memory' */
 233         error = ENOMEM;
 234
 235         /*
 236          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 237          *
 238          * Note that some of these controllers are 64-bit capable.
 239          */
 240         if (bus_dma_tag_create(NULL,                    /* parent */
 241                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 242                                BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
 243                                BUS_SPACE_MAXADDR,       /* highaddr */
 244                                NULL, NULL,              /* filter, filterarg */
 245                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 246                                AAC_MAXSGENTRIES,        /* nsegments */
 247                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 248                                0,                       /* flags */
 249                                &sc->aac_parent_dmat)) {
 250                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 251                 goto out;
 252         }
 253
 254         /*
 255          * Detect the hardware interface version, set up the bus interface
 256          * indirection.
 257          */
 258         sc->aac_hwif = AAC_HWIF_UNKNOWN;
 259         for (i = 0; aac_identifiers[i].vendor != 0; i++) {
 260                 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
 261                     (aac_identifiers[i].device == pci_get_device(dev)) &&
 262                     (aac_identifiers[i].subvendor == pci_get_subvendor(dev)) &&
 263                     (aac_identifiers[i].subdevice == pci_get_subdevice(dev))) {
 264                         sc->aac_hwif = aac_identifiers[i].hwif;
 265                         switch(sc->aac_hwif) {
 266                         case AAC_HWIF_I960RX:
 267                                 debug(2, "set hardware up for i960Rx");
 268                                 sc->aac_if = aac_rx_interface;
 269                                 break;
 270
 271                         case AAC_HWIF_STRONGARM:
 272                                 debug(2, "set hardware up for StrongARM");
 273                                 sc->aac_if = aac_sa_interface;
 274                                 break;
 275                         case AAC_HWIF_FALCON:
 276                                 debug(2, "set hardware up for Falcon/PPC");
 277                                 sc->aac_if = aac_fa_interface;
 278                                 break;
 279                         }
 280
 281                         /* Set up quirks */
 282                         sc->flags = aac_identifiers[i].quirks;
 283
 284                         break;
 285                 }
 286         }
 287         if (sc->aac_hwif == AAC_HWIF_UNKNOWN) {
 288                 device_printf(sc->aac_dev, "unknown hardware type\n");
 289                 error = ENXIO;
 290                 goto out;
 291         }
 292
 293
 294         /*
 295          * Do bus-independent initialisation.
 296          */
 297         error = aac_attach(sc);
 298
 299 out:
 300         if (error)
 301                 aac_free(sc);
 302         return(error);
 303 }