sys/dev/aacraid/aacraid_pci.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2000 Michael Smith
   5  * Copyright (c) 2001 Scott Long
   6  * Copyright (c) 2000 BSDi
   7  * Copyright (c) 2001-2010 Adaptec, Inc.
   8  * Copyright (c) 2010-2012 PMC-Sierra, Inc.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  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 struct aac_ident
  85 {
  86         u_int16_t               vendor;
  87         u_int16_t               device;
  88         u_int16_t               subvendor;
  89         u_int16_t               subdevice;
  90         int                     hwif;
  91         int                     quirks;
  92         char                    *desc;
  93 } aacraid_family_identifiers[] = {
  94         {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0,
  95          "Adaptec RAID Controller"},
  96         {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0,
  97          "Adaptec RAID Controller"},
  98         {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0,
  99          "Adaptec RAID Controller"},
 100         {0, 0, 0, 0, 0, 0, 0}
 101 };
 102
 103 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, 0, 0);
 104 MODULE_PNP_INFO("U16:vendor;U16:device", pci, aacraid,
 105     aacraid_family_identifiers,
 106     nitems(aacraid_family_identifiers) - 1);
 107 MODULE_DEPEND(aacraid, pci, 1, 1, 1);
 108
 109 static struct aac_ident *
 110 aac_find_ident(device_t dev)
 111 {
 112         struct aac_ident *m;
 113         u_int16_t vendid, devid;
 114
 115         vendid = pci_get_vendor(dev);
 116         devid = pci_get_device(dev);
 117
 118         for (m = aacraid_family_identifiers; m->vendor != 0; m++) {
 119                 if ((m->vendor == vendid) && (m->device == devid))
 120                         return (m);
 121         }
 122
 123         return (NULL);
 124 }
 125
 126 /*
 127  * Determine whether this is one of our supported adapters.
 128  */
 129 static int
 130 aacraid_pci_probe(device_t dev)
 131 {
 132         struct aac_ident *id;
 133
 134         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 135
 136         if ((id = aac_find_ident(dev)) != NULL) {
 137                 device_set_desc(dev, id->desc);
 138                 return(BUS_PROBE_DEFAULT);
 139         }
 140         return(ENXIO);
 141 }
 142
 143 /*
 144  * Allocate resources for our device, set up the bus interface.
 145  */
 146 static int
 147 aacraid_pci_attach(device_t dev)
 148 {
 149         struct aac_softc *sc;
 150         struct aac_ident *id;
 151         int error;
 152         u_int32_t command;
 153
 154         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 155
 156         /*
 157          * Initialise softc.
 158          */
 159         sc = device_get_softc(dev);
 160         bzero(sc, sizeof(*sc));
 161         sc->aac_dev = dev;
 162
 163         /* assume failure is 'not configured' */
 164         error = ENXIO;
 165
 166         /*
 167          * Verify that the adapter is correctly set up in PCI space.
 168          */
 169         pci_enable_busmaster(dev);
 170         command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
 171         if (!(command & PCIM_CMD_BUSMASTEREN)) {
 172                 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
 173                 goto out;
 174         }
 175
 176         /*
 177          * Detect the hardware interface version, set up the bus interface
 178          * indirection.
 179          */
 180         id = aac_find_ident(dev);
 181         sc->aac_hwif = id->hwif;
 182         switch(sc->aac_hwif) {
 183         case AAC_HWIF_SRC:
 184                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC");
 185                 sc->aac_if = aacraid_src_interface;
 186                 break;
 187         case AAC_HWIF_SRCV:
 188                 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv");
 189                 sc->aac_if = aacraid_srcv_interface;
 190                 break;
 191         default:
 192                 sc->aac_hwif = AAC_HWIF_UNKNOWN;
 193                 device_printf(sc->aac_dev, "unknown hardware type\n");
 194                 error = ENXIO;
 195                 goto out;
 196         }
 197
 198         /* assume failure is 'out of memory' */
 199         error = ENOMEM;
 200
 201         /*
 202          * Allocate the PCI register window.
 203          */
 204         sc->aac_regs_rid0 = PCIR_BAR(0);
 205         if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
 206             SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
 207                 device_printf(sc->aac_dev,
 208                     "couldn't allocate register window 0\n");
 209                 goto out;
 210         }
 211         sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
 212         sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
 213
 214         sc->aac_regs_rid1 = PCIR_BAR(2);
 215         if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
 216             SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
 217                 device_printf(sc->aac_dev,
 218                     "couldn't allocate register window 1\n");
 219                 goto out;
 220         }
 221         sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
 222         sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
 223
 224         /*
 225          * Allocate the parent bus DMA tag appropriate for our PCI interface.
 226          *
 227          * Note that some of these controllers are 64-bit capable.
 228          */
 229         if (bus_dma_tag_create(bus_get_dma_tag(dev),    /* parent */
 230                                PAGE_SIZE, 0,            /* algnmnt, boundary */
 231                                BUS_SPACE_MAXADDR,       /* lowaddr */
 232                                BUS_SPACE_MAXADDR,       /* highaddr */
 233                                NULL, NULL,              /* filter, filterarg */
 234                                BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
 235                                BUS_SPACE_UNRESTRICTED,  /* nsegments */
 236                                BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
 237                                0,                       /* flags */
 238                                NULL, NULL,              /* No locking needed */
 239                                &sc->aac_parent_dmat)) {
 240                 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 241                 goto out;
 242         }
 243
 244         /* Set up quirks */
 245         sc->flags = id->quirks;
 246
 247         /*
 248          * Do bus-independent initialisation.
 249          */
 250         error = aacraid_attach(sc);
 251
 252 out:
 253         if (error)
 254                 aacraid_free(sc);
 255         return(error);
 256 }