sys/dev/aacraid/aacraid_pci.c

   1 /*-
   2  * Copyright (c) 2000 Michael Smith
   3  * Copyright (c) 2001 Scott Long
   4  * Copyright (c) 2000 BSDi
   5  * Copyright (c) 2001-2010 Adaptec, Inc.
   6  * Copyright (c) 2010-2012 PMC-Sierra, Inc.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __FBSDID("$FreeBSD$");
  33
  34 /*
  35  * PCI bus interface and resource allocation.
  36  */
  37
  38 #include "opt_aacraid.h"
  39
  40 #include <sys/param.h>
  41 #include <sys/systm.h>
  42 #include <sys/kernel.h>
  43 #include <sys/module.h>
  44
  45 #include <sys/bio.h>
  46 #include <sys/bus.h>
  47 #include <sys/conf.h>
  48 #include <sys/disk.h>
  49
  50 #include <machine/bus.h>
  51 #include <machine/resource.h>
  52 #include <sys/rman.h>
  53
  54 #include <dev/pci/pcireg.h>
  55 #include <dev/pci/pcivar.h>
  56
  57 #include <dev/aacraid/aacraid_reg.h>
  58 #include <sys/aac_ioctl.h>
  59 #include <dev/aacraid/aacraid_debug.h>
  60 #include <dev/aacraid/aacraid_var.h>
  61
  62 static int      aacraid_pci_probe(device_t dev);
  63 static int      aacraid_pci_attach(device_t dev);
  64
  65 static device_method_t aacraid_methods[] = {
  66         /* Device interface */
  67         DEVMETHOD(device_probe,         aacraid_pci_probe),
  68         DEVMETHOD(device_attach,        aacraid_pci_attach),
  69         DEVMETHOD(device_detach,        aacraid_detach),
  70         DEVMETHOD(device_suspend,       aacraid_suspend),
  71         DEVMETHOD(device_resume,        aacraid_resume),
  72
  73         DEVMETHOD(bus_print_child,      bus_generic_print_child),
  74         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
  75         { 0, 0 }
  76 };
  77
  78 static driver_t aacraid_pci_driver = {
  79         "aacraid",
  80         aacraid_methods,
  81         sizeof(struct aac_softc)
  82 };
  83
  84 static devclass_t       aacraid_devclass;
  85
  86 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, aacraid_devclass, 0, 0);
  87 MODULE_DEPEND(aacraid, pci, 1, 1, 1);
  88
  89 struct aac_ident
  90 {
  91         u_int16_t               vendor;
  92         u_int16_t               device;
  93         u_int16_t               subvendor;
  94         u_int16_t               subdevice;
  95         int                     hwif;
  96         int                     quirks;
  97         char                    *desc;
  98 } aacraid_family_identifiers[] = {
  99         {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0,
 100          "Adaptec RAID Controller"},
 101         {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0,
 102          "Adaptec RAID Controller"},
 103         {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0,
 104          "Adaptec RAID Controller"},
 105         {0, 0, 0, 0, 0, 0, 0}
 106 };
 107
 108 static struct aac_ident *
 109 aac_find_ident(device_t dev)
 110 {
 111         struct aac_ident *m;
 112         u_int16_t vendid, devid;
 113
 114         vendid = pci_get_vendor(dev);
 115         devid = pci_get_device(dev);
 116
 117         for (m = aacraid_family_identifiers; m->vendor != 0; m++) {
 118                 if ((m->vendor == vendid) && (m->device == devid))
 119                         return (m);
 120         }
 121
 122         return (NULL);
 123 }
 124
 125 /*
 126  * Determine whether this is one of our supported adapters.
 127  */
 128 static int
 129 aacraid_pci_probe(device_t dev)
 130 {
 131         struct aac_ident *id;
 132
 133         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 134
 135         if ((id = aac_find_ident(dev)) != NULL) {
 136                 device_set_desc(dev, id->desc);
 137                 return(BUS_PROBE_DEFAULT);
 138         }
 139         return(ENXIO);
 140 }
 141
 142 /*
 143  * Allocate resources for our device, set up the bus interface.
 144  */
 145 static int
 146 aacraid_pci_attach(device_t dev)
 147 {
 148         struct aac_softc *sc;
 149         struct aac_ident *id;
 150         int error;
 151         u_int32_t command;
 152
 153         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 154
 155         /*
 156          * Initialise softc.
 157          */
 158         sc = device_get_softc(dev);
 159         bzero(sc, sizeof(*sc));
 160         sc->aac_dev = dev;
 161
 162         /* assume failure is 'not configured' */
 163         error = ENXIO;
 164
 165         /*
 166          * Verify that the adapter is correctly set up in PCI space.
 167          */
 168         pci_enable_busmaster(dev);
 169         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 170         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 171                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 172                 goto out;
 173         }
 174
 175         /*
 176          * Detect the hardware interface version, set up the bus interface
 177          * indirection.
 178          */
 179         id = aac_find_ident(dev);
 180         sc->aac_hwif = id->hwif;
 181         switch(sc->aac_hwif) {
 182         case AAC_HWIF_SRC:
 183                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC");
 184                 sc->aac_if = aacraid_src_interface;
 185                 break;
 186         case AAC_HWIF_SRCV:
 187                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv");
 188                 sc->aac_if = aacraid_srcv_interface;
 189                 break;
 190         default:
 191                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 192                 device_printf(sc->aac_dev, "unknown hardware type\n");
 193                 error = ENXIO;
 194                 goto out;
 195         }
 196
 197         /* assume failure is 'out of memory' */
 198         error = ENOMEM;
 199
 200         /*
 201          * Allocate the PCI register window.
 202          */
 203         sc->aac_regs_rid0 = PCIR_BAR(0);
 204         if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
 205             SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
 206                 device_printf(sc->aac_dev,
 207                     "couldn't allocate register window 0\n");
 208                 goto out;
 209         }
 210         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 211         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 212
 213         sc->aac_regs_rid1 = PCIR_BAR(2);
 214         if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
 215             SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
 216                 device_printf(sc->aac_dev,
 217                     "couldn't allocate register window 1\n");
 218                 goto out;
 219         }
 220         sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 221         sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 222
 223         /*
 224          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 225          *
 226          * Note that some of these controllers are 64-bit capable.
 227          */
 228         if (bus_dma_tag_create(bus_get_dma_tag(dev),    /* parent */
 229                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 230                                BUS_SPACE_MAXADDR,       /* lowaddr */
 231                                BUS_SPACE_MAXADDR,       /* highaddr */
 232                                NULL, NULL,              /* filter, filterarg */
 233                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 234                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 235                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 236                                0,                       /* flags */
 237                                NULL, NULL,              /* No locking needed */
 238                                &sc->aac_parent_dmat)) {
 239                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 240                 goto out;
 241         }
 242
 243         /* Set up quirks */
 244         sc->flags = id->quirks;
 245
 246         /*
 247          * Do bus-independent initialisation.
 248          */
 249         error = aacraid_attach(sc);
 250
 251 out:
 252         if (error)
 253                 aacraid_free(sc);
 254         return(error);
 255 }