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 1.3.2.19 2003/11/01 18:44:51 scottl Exp $
  30  *      $DragonFly: src/sys/dev/raid/aac/aac_pci.c,v 1.5 2004/04/21 03:28:07 hmp 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, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
 110         "Dell PERC 3/Di"},
 111         {0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
 112         "Dell PERC 3/Di"},
 113         {0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
 114         "Dell PERC 3/Di"},
 115         {0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
 116         "Adaptec AAC-364"},
 117         {0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 0,
 118         "Adaptec SCSI RAID 5400S"},
 119         {0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
 120         "Dell PERC 2/QC"},
 121         {0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
 122         "HP NetRaid-4M"},
 123         {0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 124         "Adaptec SCSI RAID 2200S"},
 125         {0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 126         "Dell PERC 320/DC"},
 127         {0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB,
 128         "Adaptec SCSI RAID 2120S"},
 129         {0, 0, 0, 0, 0, 0, 0}
 130 };
 131
 132 /*
 133  * Determine whether this is one of our supported adapters.
 134  */
 135 static int
 136 aac_pci_probe(device_t dev)
 137 {
 138         struct aac_ident *m;
 139
 140         debug_called(1);
 141
 142         for (m = aac_identifiers; m->vendor != 0; m++) {
 143                 if ((m->vendor == pci_get_vendor(dev)) &&
 144                     (m->device == pci_get_device(dev)) &&
 145                     ((m->subvendor == 0) || (m->subvendor ==
 146                                              pci_get_subvendor(dev))) &&
 147                     ((m->subdevice == 0) || ((m->subdevice ==
 148                                               pci_get_subdevice(dev))))) {
 149
 150                         device_set_desc(dev, m->desc);
 151                         return(-10);    /* allow room to be overridden */
 152                 }
 153         }
 154         return(ENXIO);
 155 }
 156
 157 /*
 158  * Allocate resources for our device, set up the bus interface.
 159  */
 160 static int
 161 aac_pci_attach(device_t dev)
 162 {
 163         struct aac_softc *sc;
 164         int i, error;
 165         u_int32_t command;
 166
 167         debug_called(1);
 168
 169         /*
 170          * Initialise softc.
 171          */
 172         sc = device_get_softc(dev);
 173         bzero(sc, sizeof(*sc));
 174         sc->aac_dev = dev;
 175
 176         /* assume failure is 'not configured' */
 177         error = ENXIO;
 178
 179         /*
 180          * Verify that the adapter is correctly set up in PCI space.
 181          */
 182         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 183         command |= PCIM_CMD_BUSMASTEREN;
 184         pci_write_config(dev, PCIR_COMMAND, command, 2);
 185         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 186         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 187                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 188                 goto out;
 189         }
 190         if ((command & PCIM_CMD_MEMEN) == 0) {
 191                 device_printf(sc->aac_dev, "memory window not available\n");
 192                 goto out;
 193         }
 194
 195         /*
 196          * Allocate the PCI register window.
 197          */
 198         sc->aac_regs_rid = 0x10;        /* first base address register */
 199         if ((sc->aac_regs_resource = bus_alloc_resource(sc->aac_dev,
 200                                                         SYS_RES_MEMORY,
 201                                                         &sc->aac_regs_rid,
 202                                                         0, ~0, 1,
 203                                                         RF_ACTIVE)) == NULL) {
 204                 device_printf(sc->aac_dev,
 205                               "couldn't allocate register window\n");
 206                 goto out;
 207         }
 208         sc->aac_btag = rman_get_bustag(sc->aac_regs_resource);
 209         sc->aac_bhandle = rman_get_bushandle(sc->aac_regs_resource);
 210
 211         /*
 212          * Allocate and connect our interrupt.
 213          */
 214         sc->aac_irq_rid = 0;
 215         if ((sc->aac_irq = bus_alloc_resource(sc->aac_dev, SYS_RES_IRQ,
 216                                               &sc->aac_irq_rid, 0, ~0, 1,
 217                                               RF_SHAREABLE |
 218                                               RF_ACTIVE)) == NULL) {
 219                 device_printf(sc->aac_dev, "can't allocate interrupt\n");
 220                 goto out;
 221         }
 222         if (bus_setup_intr(sc->aac_dev, sc->aac_irq, INTR_TYPE_BIO|INTR_ENTROPY,
 223                            aac_intr, sc, &sc->aac_intr)) {
 224                 device_printf(sc->aac_dev, "can't set up interrupt\n");
 225                 goto out;
 226         }
 227
 228         /* assume failure is 'out of memory' */
 229         error = ENOMEM;
 230
 231         /*
 232          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 233          *
 234          * Note that some of these controllers are 64-bit capable.
 235          */
 236         if (bus_dma_tag_create(NULL,                    /* parent */
 237                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 238                                BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
 239                                BUS_SPACE_MAXADDR,       /* highaddr */
 240                                NULL, NULL,              /* filter, filterarg */
 241                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 242                                AAC_MAXSGENTRIES,        /* nsegments */
 243                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 244                                0,                       /* flags */
 245                                &sc->aac_parent_dmat)) {
 246                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 247                 goto out;
 248         }
 249
 250         /*
 251          * Detect the hardware interface version, set up the bus interface
 252          * indirection.
 253          */
 254         sc->aac_hwif = AAC_HWIF_UNKNOWN;
 255         for (i = 0; aac_identifiers[i].vendor != 0; i++) {
 256                 if ((aac_identifiers[i].vendor == pci_get_vendor(dev)) &&
 257                     (aac_identifiers[i].device == pci_get_device(dev)) &&
 258                     (aac_identifiers[i].subvendor == pci_get_subvendor(dev)) &&
 259                     (aac_identifiers[i].subdevice == pci_get_subdevice(dev))) {
 260                         sc->aac_hwif = aac_identifiers[i].hwif;
 261                         switch(sc->aac_hwif) {
 262                         case AAC_HWIF_I960RX:
 263                                 debug(2, "set hardware up for i960Rx");
 264                                 sc->aac_if = aac_rx_interface;
 265                                 break;
 266
 267                         case AAC_HWIF_STRONGARM:
 268                                 debug(2, "set hardware up for StrongARM");
 269                                 sc->aac_if = aac_sa_interface;
 270                                 break;
 271                         case AAC_HWIF_FALCON:
 272                                 debug(2, "set hardware up for Falcon/PPC");
 273                                 sc->aac_if = aac_fa_interface;
 274                                 break;
 275                         }
 276
 277                         /* Set up quirks */
 278                         sc->flags = aac_identifiers[i].quirks;
 279
 280                         break;
 281                 }
 282         }
 283         if (sc->aac_hwif == AAC_HWIF_UNKNOWN) {
 284                 device_printf(sc->aac_dev, "unknown hardware type\n");
 285                 error = ENXIO;
 286                 goto out;
 287         }
 288
 289
 290         /*
 291          * Do bus-independent initialisation.
 292          */
 293         error = aac_attach(sc);
 294
 295 out:
 296         if (error)
 297                 aac_free(sc);
 298         return(error);
 299 }