The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips_pci.c

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    1 /*-
    2  * Copyright (c) 2002 Adaptec Inc.
    3  * All rights reserved.
    4  *
    5  * Written by: David Jeffery
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/5.1/sys/dev/ips/ips_pci.c 114902 2003-05-11 06:36:49Z scottl $
   29  */
   30 
   31 
   32 #include <dev/ips/ips.h>
   33 static int ips_pci_free(ips_softc_t *sc);
   34 
   35 static int ips_pci_probe(device_t dev)
   36 {
   37 
   38         if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
   39             (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
   40                 device_set_desc(dev, "IBM ServeRAID Adapter");
   41                 return 0;
   42         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
   43             (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
   44                 device_set_desc(dev, "IBM ServeRAID Adapter");
   45                 return (0);
   46         }
   47         return(ENXIO);
   48 }
   49 
   50 static int ips_pci_attach(device_t dev)
   51 {
   52         u_int32_t command;
   53         ips_softc_t *sc;
   54 
   55         DEVICE_PRINTF(1, dev, "in attach.\n");
   56         sc = (ips_softc_t *)device_get_softc(dev);
   57         if(!sc){
   58                 printf("how is sc NULL?!\n");
   59                 return (ENXIO);
   60         }
   61         bzero(sc, sizeof(ips_softc_t));
   62         sc->dev = dev;
   63 
   64         if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
   65                 sc->ips_adapter_reinit = ips_morpheus_reinit;
   66                 sc->ips_adapter_intr = ips_morpheus_intr;
   67                 sc->ips_issue_cmd    = ips_issue_morpheus_cmd;
   68         } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
   69                 sc->ips_adapter_reinit = ips_copperhead_reinit;
   70                 sc->ips_adapter_intr = ips_copperhead_intr;
   71                 sc->ips_issue_cmd    = ips_issue_copperhead_cmd;
   72         } else
   73                 goto error;
   74         /* make sure busmastering is on */
   75         command = pci_read_config(dev, PCIR_COMMAND, 1);
   76         command |= PCIM_CMD_BUSMASTEREN;
   77         pci_write_config(dev, PCIR_COMMAND, command, 1);
   78         /* seting up io space */
   79         sc->iores = NULL;
   80         if(command & PCIM_CMD_MEMEN){
   81                 PRINTF(10, "trying MEMIO\n");
   82                 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)
   83                         sc->rid = PCIR_MAPS;
   84                 else
   85                         sc->rid = PCIR_MAPS + 4;
   86                 sc->iotype = SYS_RES_MEMORY;
   87                 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
   88         }
   89         if(!sc->iores && command & PCIM_CMD_PORTEN){
   90                 PRINTF(10, "trying PORTIO\n");
   91                 sc->rid = PCIR_MAPS;
   92                 sc->iotype = SYS_RES_IOPORT;
   93                 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE);
   94         }
   95         if(sc->iores == NULL){
   96                 device_printf(dev, "resource allocation failed\n");
   97                 return (ENXIO);
   98         }
   99         sc->bustag = rman_get_bustag(sc->iores);
  100         sc->bushandle = rman_get_bushandle(sc->iores);
  101         /*allocate an interrupt. when does the irq become active? after leaving attach? */
  102         sc->irqrid = 0;
  103         if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){
  104                 device_printf(dev, "irq allocation failed\n");
  105                 goto error;
  106         }
  107         if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
  108                 device_printf(dev, "irq setup failed\n");
  109                 goto error;
  110         }
  111         if (bus_dma_tag_create( /* parent    */ NULL,
  112                                 /* alignemnt */ 1,
  113                                 /* boundary  */ 0,
  114                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
  115                                 /* highaddr  */ BUS_SPACE_MAXADDR,
  116                                 /* filter    */ NULL,
  117                                 /* filterarg */ NULL,
  118                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
  119                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
  120                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
  121                                 /* flags     */ 0,
  122                                 &sc->adapter_dmatag) != 0) {
  123                 printf("IPS can't alloc dma tag\n");
  124                 goto error;
  125         }
  126         if(ips_adapter_init(sc))
  127                 goto error;
  128         return 0;
  129 error:
  130         ips_pci_free(sc);
  131         return (ENXIO);
  132 }
  133 
  134 static int ips_pci_free(ips_softc_t *sc)
  135 {
  136         if(sc->adapter_dmatag)
  137                 bus_dma_tag_destroy(sc->adapter_dmatag);
  138         if(sc->irqcookie)
  139                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
  140         if(sc->irqres)
  141                bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
  142         if(sc->iores)
  143                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
  144         return 0;
  145 }
  146 
  147 static int ips_pci_detach(device_t dev)
  148 {
  149         ips_softc_t *sc;
  150         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
  151         sc = (ips_softc_t *) device_get_softc(dev);
  152         ips_flush_cache(sc);
  153         if(ips_adapter_free(sc))
  154                 return EBUSY;
  155         ips_pci_free(sc);
  156         mtx_destroy(&sc->cmd_mtx);
  157         return 0;
  158 }
  159 
  160 static int ips_pci_shutdown(device_t dev)
  161 {
  162         ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
  163         ips_flush_cache(sc);
  164         return 0;
  165 }
  166 
  167 static device_method_t ips_driver_methods[] = {
  168         DEVMETHOD(device_probe, ips_pci_probe),
  169         DEVMETHOD(device_attach, ips_pci_attach),
  170         DEVMETHOD(device_detach, ips_pci_detach),
  171         DEVMETHOD(device_shutdown, ips_pci_shutdown),
  172         {0,0}
  173 };
  174 
  175 static driver_t ips_pci_driver = {
  176         "ips",
  177         ips_driver_methods,
  178         sizeof(ips_softc_t),
  179 };
  180 
  181 static devclass_t ips_devclass;
  182 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);

Cache object: 0758cc92d57c8bd857bf9b10bad470c3


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