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         {0x9005, 0x028f, 0, 0, AAC_HWIF_SRCV, 0,
 106          "Adaptec RAID Controller"},
 107         {0, 0, 0, 0, 0, 0, 0}
 108 };
 109
 110 static struct aac_ident *
 111 aac_find_ident(device_t dev)
 112 {
 113         struct aac_ident *m;
 114         u_int16_t vendid, devid, sub_vendid, sub_devid;
 115
 116         vendid = pci_get_vendor(dev);
 117         devid = pci_get_device(dev);
 118         sub_vendid = pci_get_subvendor(dev);
 119         sub_devid = pci_get_subdevice(dev);
 120
 121         for (m = aacraid_family_identifiers; m->vendor != 0; m++) {
 122                 if ((m->vendor == vendid) && (m->device == devid))
 123                         return (m);
 124         }
 125
 126         return (NULL);
 127 }
 128
 129 /*
 130  * Determine whether this is one of our supported adapters.
 131  */
 132 static int
 133 aacraid_pci_probe(device_t dev)
 134 {
 135         struct aac_ident *id;
 136
 137         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 138
 139         if ((id = aac_find_ident(dev)) != NULL) {
 140                 device_set_desc(dev, id->desc);
 141                 return(BUS_PROBE_DEFAULT);
 142         }
 143         return(ENXIO);
 144 }
 145
 146 /*
 147  * Allocate resources for our device, set up the bus interface.
 148  */
 149 static int
 150 aacraid_pci_attach(device_t dev)
 151 {
 152         struct aac_softc *sc;
 153         struct aac_ident *id;
 154         int error;
 155         u_int32_t command;
 156
 157         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 158
 159         /*
 160          * Initialise softc.
 161          */
 162         sc = device_get_softc(dev);
 163         bzero(sc, sizeof(*sc));
 164         sc->aac_dev = dev;
 165
 166         /* assume failure is 'not configured' */
 167         error = ENXIO;
 168
 169         /*
 170          * Verify that the adapter is correctly set up in PCI space.
 171          */
 172         pci_enable_busmaster(dev);
 173         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 174         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 175                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 176                 goto out;
 177         }
 178
 179         /*
 180          * Detect the hardware interface version, set up the bus interface
 181          * indirection.
 182          */
 183         id = aac_find_ident(dev);
 184         sc->aac_hwif = id->hwif;
 185         switch(sc->aac_hwif) {
 186         case AAC_HWIF_SRC:
 187                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC");
 188                 sc->aac_if = aacraid_src_interface;
 189                 break;
 190         case AAC_HWIF_SRCV:
 191                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv");
 192                 sc->aac_if = aacraid_srcv_interface;
 193                 break;
 194         default:
 195                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 196                 device_printf(sc->aac_dev, "unknown hardware type\n");
 197                 error = ENXIO;
 198                 goto out;
 199         }
 200
 201         /* assume failure is 'out of memory' */
 202         error = ENOMEM;
 203
 204         /*
 205          * Allocate the PCI register window.
 206          */
 207         sc->aac_regs_rid0 = PCIR_BAR(0);
 208         if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
 209             SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
 210                 device_printf(sc->aac_dev,
 211                     "couldn't allocate register window 0\n");
 212                 goto out;
 213         }
 214         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 215         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 216
 217         sc->aac_regs_rid1 = PCIR_BAR(2);
 218         if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
 219             SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
 220                 device_printf(sc->aac_dev,
 221                     "couldn't allocate register window 1\n");
 222                 goto out;
 223         }
 224         sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 225         sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 226
 227         /*
 228          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 229          *
 230          * Note that some of these controllers are 64-bit capable.
 231          */
 232         if (bus_dma_tag_create(bus_get_dma_tag(dev),    /* parent */
 233                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 234                                BUS_SPACE_MAXADDR,       /* lowaddr */
 235                                BUS_SPACE_MAXADDR,       /* highaddr */
 236                                NULL, NULL,              /* filter, filterarg */
 237                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 238                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 239                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 240                                0,                       /* flags */
 241                                NULL, NULL,              /* No locking needed */
 242                                &sc->aac_parent_dmat)) {
 243                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 244                 goto out;
 245         }
 246
 247         /* Set up quirks */
 248         sc->flags = id->quirks;
 249
 250         /*
 251          * Do bus-independent initialisation.
 252          */
 253         error = aacraid_attach(sc);
 254
 255 out:
 256         if (error)
 257                 aacraid_free(sc);
 258         return(error);
 259 }