sys/dev/raid/ips/ips_pci.c

   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: src/sys/dev/ips/ips_pci.c,v 1.10 2004/03/19 17:36:47 scottl Exp $
  29  * $DragonFly: src/sys/dev/raid/ips/ips_pci.c,v 1.12 2005/05/24 20:59:04 dillon Exp $
  30  */
  31
  32 #include <dev/raid/ips/ips.h>
  33
  34 static int ips_pci_free(ips_softc_t *sc);
  35 static void ips_intrhook(void *arg);
  36
  37 static struct ips_pci_product {
  38         uint16_t vendor, device;
  39         const char *desc;
  40         int (*ips_adapter_reinit)(struct ips_softc *, int);
  41         void (*ips_adapter_intr)(void *);
  42         void (*ips_issue_cmd)(ips_command_t *);
  43 } ips_pci_products[] = {
  44         { IPS_VENDOR_ID, IPS_MORPHEUS_DEVICE_ID, "IBM ServeRAID Adapter",
  45           ips_morpheus_reinit, ips_morpheus_intr, ips_issue_morpheus_cmd },
  46         { IPS_VENDOR_ID, IPS_COPPERHEAD_DEVICE_ID, "IBM ServeRAID Adapter",
  47           ips_copperhead_reinit, ips_copperhead_intr,
  48           ips_issue_copperhead_cmd },
  49         { IPS_VENDOR_ID_ADAPTEC, IPS_MARCO_DEVICE_ID,
  50           "Adaptec ServeRAID Adapter", ips_morpheus_reinit, ips_morpheus_intr,
  51           ips_issue_morpheus_cmd },
  52         { 0, 0, NULL }
  53 };
  54
  55 static int
  56 ips_pci_probe(device_t dev)
  57 {
  58         uint16_t vendor = pci_get_vendor(dev);
  59         uint16_t device = pci_get_device(dev);
  60         struct ips_pci_product *pp;
  61         ips_softc_t *sc;
  62
  63         for (pp = ips_pci_products; pp->vendor; pp++) {
  64                 if (vendor == pp->vendor && device == pp->device) {
  65                         sc = (ips_softc_t *)device_get_softc(dev);
  66                         sc->ips_adapter_reinit = pp->ips_adapter_reinit;
  67                         sc->ips_adapter_intr = pp->ips_adapter_intr;
  68                         sc->ips_issue_cmd = pp->ips_issue_cmd;
  69                         device_set_desc(dev, pp->desc);
  70                         return (0);
  71                 }
  72         }
  73         return (ENXIO);
  74 }
  75
  76 static int
  77 ips_pci_attach(device_t dev)
  78 {
  79         u_int32_t command;
  80         ips_softc_t *sc;
  81         int error;
  82
  83         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  84                 device_printf(dev, "device is disabled\n");
  85                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  86                 return (0);
  87         }
  88         DEVICE_PRINTF(1, dev, "in attach.\n");
  89         sc = (ips_softc_t *)device_get_softc(dev);
  90         sc->dev = dev;
  91         /* make sure busmastering is on */
  92         pci_enable_busmaster(dev);
  93         command = pci_read_config(dev, PCIR_COMMAND, 1);
  94         /* seting up io space */
  95         sc->iores = NULL;
  96         if (command & PCIM_CMD_MEMEN) {
  97                 PRINTF(10, "trying MEMIO\n");
  98                 if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
  99                         sc->rid = PCIR_BAR(1);
 100                 else
 101                         sc->rid = PCIR_BAR(0);
 102                 sc->iotype = SYS_RES_MEMORY;
 103                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 104                     &sc->rid, RF_ACTIVE);
 105         }
 106         if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
 107                 PRINTF(10, "trying PORTIO\n");
 108                 sc->rid = PCIR_BAR(0);
 109                 sc->iotype = SYS_RES_IOPORT;
 110                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 111                     &sc->rid, RF_ACTIVE);
 112         }
 113         if (sc->iores == NULL) {
 114                 device_printf(dev, "resource allocation failed\n");
 115                 return (ENXIO);
 116         }
 117         sc->bustag = rman_get_bustag(sc->iores);
 118         sc->bushandle = rman_get_bushandle(sc->iores);
 119         /*
 120          * allocate an interrupt. when does the irq become active?
 121          * after leaving attach?
 122          */
 123         sc->irqrid = 0;
 124         if ((sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 125             &sc->irqrid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
 126                 device_printf(dev, "irq allocation failed\n");
 127                 goto error;
 128         }
 129         error = bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO,
 130                                sc->ips_adapter_intr, sc,
 131                                &sc->irqcookie, NULL);
 132         if (error) {
 133                 device_printf(dev, "irq setup failed\n");
 134                 goto error;
 135         }
 136         if (bus_dma_tag_create( /* parent    */ NULL,
 137                                 /* alignemnt */ 1,
 138                                 /* boundary  */ 0,
 139                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 140                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 141                                 /* filter    */ NULL,
 142                                 /* filterarg */ NULL,
 143                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 144                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
 145                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
 146                                 /* flags     */ 0,
 147                                 &sc->adapter_dmatag) != 0) {
 148                 printf("IPS can't alloc dma tag\n");
 149                 goto error;
 150         }
 151         sc->ips_ich.ich_func = ips_intrhook;
 152         sc->ips_ich.ich_arg = sc;
 153         sc->ips_ich.ich_desc = "ips";
 154         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 155                 printf("IPS can't establish configuration hook\n");
 156                 goto error;
 157         }
 158         return 0;
 159 error:
 160         ips_pci_free(sc);
 161         return (ENXIO);
 162 }
 163
 164 static void
 165 ips_intrhook(void *arg)
 166 {
 167         struct ips_softc *sc = arg;
 168
 169         config_intrhook_disestablish(&sc->ips_ich);
 170         if (ips_adapter_init(sc))
 171                 ips_pci_free(sc);
 172         else
 173                 sc->configured = 1;
 174 }
 175
 176 static int
 177 ips_pci_free(ips_softc_t *sc)
 178 {
 179
 180         if (sc->adapter_dmatag)
 181                 bus_dma_tag_destroy(sc->adapter_dmatag);
 182         if (sc->irqcookie)
 183                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 184         if (sc->irqres)
 185                 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid,
 186                     sc->irqres);
 187         if (sc->iores)
 188                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 189         sc->configured = 0;
 190         return 0;
 191 }
 192
 193 static int
 194 ips_pci_detach(device_t dev)
 195 {
 196         ips_softc_t *sc;
 197
 198         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 199         sc = (ips_softc_t *)device_get_softc(dev);
 200         if (sc->configured) {
 201                 sc->configured = 0;
 202                 ips_flush_cache(sc);
 203                 if (ips_adapter_free(sc))
 204                         return EBUSY;
 205                 ips_pci_free(sc);
 206         }
 207         return 0;
 208 }
 209
 210 static int
 211 ips_pci_shutdown(device_t dev)
 212 {
 213         ips_softc_t *sc;
 214
 215         sc = (ips_softc_t *)device_get_softc(dev);
 216         if (sc->configured)
 217                 ips_flush_cache(sc);
 218         return 0;
 219 }
 220
 221 static device_method_t ips_driver_methods[] = {
 222         DEVMETHOD(device_probe, ips_pci_probe),
 223         DEVMETHOD(device_attach, ips_pci_attach),
 224         DEVMETHOD(device_detach, ips_pci_detach),
 225         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 226         { 0, 0 }
 227 };
 228
 229 static driver_t ips_pci_driver = {
 230         "ips",
 231         ips_driver_methods,
 232         sizeof(ips_softc_t),
 233 };
 234
 235 static devclass_t ips_devclass;
 236 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);