aacraid_pci.c

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    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 }

Cache object: dcca2e5f3de284de50637f9c0c678659

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FreeBSD/Linux Kernel Cross Reference sys/dev/aacraid/aacraid_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/aacraid/aacraid_pci.c