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 1.9 2004/12/10 04:09:46 y0netan1 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
  82         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  83                 device_printf(dev, "device is disabled\n");
  84                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  85                 return (0);
  86         }
  87         DEVICE_PRINTF(1, dev, "in attach.\n");
  88         sc = (ips_softc_t *)device_get_softc(dev);
  89         sc->dev = dev;
  90         /* make sure busmastering is on */
  91         pci_enable_busmaster(dev);
  92         command = pci_read_config(dev, PCIR_COMMAND, 1);
  93         /* seting up io space */
  94         sc->iores = NULL;
  95         if (command & PCIM_CMD_MEMEN) {
  96                 PRINTF(10, "trying MEMIO\n");
  97                 if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
  98                         sc->rid = PCIR_BAR(1);
  99                 else
 100                         sc->rid = PCIR_BAR(0);
 101                 sc->iotype = SYS_RES_MEMORY;
 102                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 103                     &sc->rid, RF_ACTIVE);
 104         }
 105         if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
 106                 PRINTF(10, "trying PORTIO\n");
 107                 sc->rid = PCIR_BAR(0);
 108                 sc->iotype = SYS_RES_IOPORT;
 109                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 110                     &sc->rid, RF_ACTIVE);
 111         }
 112         if (sc->iores == NULL) {
 113                 device_printf(dev, "resource allocation failed\n");
 114                 return (ENXIO);
 115         }
 116         sc->bustag = rman_get_bustag(sc->iores);
 117         sc->bushandle = rman_get_bushandle(sc->iores);
 118         /*
 119          * allocate an interrupt. when does the irq become active?
 120          * after leaving attach?
 121          */
 122         sc->irqrid = 0;
 123         if ((sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 124             &sc->irqrid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
 125                 device_printf(dev, "irq allocation failed\n");
 126                 goto error;
 127         }
 128         if (bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO,
 129             sc->ips_adapter_intr, sc, &sc->irqcookie)) {
 130                 device_printf(dev, "irq setup failed\n");
 131                 goto error;
 132         }
 133         if (bus_dma_tag_create( /* parent    */ NULL,
 134                                 /* alignemnt */ 1,
 135                                 /* boundary  */ 0,
 136                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 137                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 138                                 /* filter    */ NULL,
 139                                 /* filterarg */ NULL,
 140                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 141                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
 142                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
 143                                 /* flags     */ 0,
 144                                 &sc->adapter_dmatag) != 0) {
 145                 printf("IPS can't alloc dma tag\n");
 146                 goto error;
 147         }
 148         sc->ips_ich.ich_func = ips_intrhook;
 149         sc->ips_ich.ich_arg = sc;
 150         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 151                 printf("IPS can't establish configuration hook\n");
 152                 goto error;
 153         }
 154         return 0;
 155 error:
 156         ips_pci_free(sc);
 157         return (ENXIO);
 158 }
 159
 160 static void
 161 ips_intrhook(void *arg)
 162 {
 163         struct ips_softc *sc = arg;
 164
 165         config_intrhook_disestablish(&sc->ips_ich);
 166         if (ips_adapter_init(sc))
 167                 ips_pci_free(sc);
 168         else
 169                 sc->configured = 1;
 170 }
 171
 172 static int
 173 ips_pci_free(ips_softc_t *sc)
 174 {
 175
 176         if (sc->adapter_dmatag)
 177                 bus_dma_tag_destroy(sc->adapter_dmatag);
 178         if (sc->irqcookie)
 179                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 180         if (sc->irqres)
 181                 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid,
 182                     sc->irqres);
 183         if (sc->iores)
 184                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 185         sc->configured = 0;
 186         return 0;
 187 }
 188
 189 static int
 190 ips_pci_detach(device_t dev)
 191 {
 192         ips_softc_t *sc;
 193
 194         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 195         sc = (ips_softc_t *)device_get_softc(dev);
 196         if (sc->configured) {
 197                 sc->configured = 0;
 198                 ips_flush_cache(sc);
 199                 if (ips_adapter_free(sc))
 200                         return EBUSY;
 201                 ips_pci_free(sc);
 202         }
 203         return 0;
 204 }
 205
 206 static int
 207 ips_pci_shutdown(device_t dev)
 208 {
 209         ips_softc_t *sc;
 210
 211         sc = (ips_softc_t *)device_get_softc(dev);
 212         if (sc->configured)
 213                 ips_flush_cache(sc);
 214         return 0;
 215 }
 216
 217 static device_method_t ips_driver_methods[] = {
 218         DEVMETHOD(device_probe, ips_pci_probe),
 219         DEVMETHOD(device_attach, ips_pci_attach),
 220         DEVMETHOD(device_detach, ips_pci_detach),
 221         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 222         { 0, 0 }
 223 };
 224
 225 static driver_t ips_pci_driver = {
 226         "ips",
 227         ips_driver_methods,
 228         sizeof(ips_softc_t),
 229 };
 230
 231 static devclass_t ips_devclass;
 232 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);