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 1.7 2003/09/11 23:30:28 ps
  29  * $DragonFly: src/sys/dev/raid/ips/ips_pci.c,v 1.2 2004/02/22 07:27:56 dillon Exp $
  30  */
  31
  32 #include <sys/cdefs.h>
  33
  34 #include <dev/raid/ips/ips.h>
  35
  36 static int ips_pci_free(ips_softc_t *sc);
  37 static void ips_intrhook(void *arg);
  38
  39 static int
  40 ips_pci_probe(device_t dev)
  41 {
  42
  43         if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  44             (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
  45                 device_set_desc(dev, "IBM ServeRAID Adapter");
  46                 return 0;
  47         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  48             (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
  49                 device_set_desc(dev, "IBM ServeRAID Adapter");
  50                 return (0);
  51         }
  52         return (ENXIO);
  53 }
  54
  55 static int
  56 ips_pci_attach(device_t dev)
  57 {
  58         u_int32_t command;
  59         ips_softc_t *sc;
  60
  61         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  62                 device_printf(dev, "device is disabled\n");
  63                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  64                 return (0);
  65         }
  66         DEVICE_PRINTF(1, dev, "in attach.\n");
  67         sc = (ips_softc_t *)device_get_softc(dev);
  68         if (sc == NULL) {
  69                 printf("how is sc NULL?!\n");
  70                 return (ENXIO);
  71         }
  72         bzero(sc, sizeof(ips_softc_t));
  73         sc->dev = dev;
  74         if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) {
  75                 sc->ips_adapter_reinit = ips_morpheus_reinit;
  76                 sc->ips_adapter_intr = ips_morpheus_intr;
  77                 sc->ips_issue_cmd    = ips_issue_morpheus_cmd;
  78         } else if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID) {
  79                 sc->ips_adapter_reinit = ips_copperhead_reinit;
  80                 sc->ips_adapter_intr = ips_copperhead_intr;
  81                 sc->ips_issue_cmd    = ips_issue_copperhead_cmd;
  82         } else
  83                 goto error;
  84         /* make sure busmastering is on */
  85         command = pci_read_config(dev, PCIR_COMMAND, 1);
  86         command |= PCIM_CMD_BUSMASTEREN;
  87         pci_write_config(dev, PCIR_COMMAND, command, 1);
  88         /* seting up io space */
  89         sc->iores = NULL;
  90         if (command & PCIM_CMD_MEMEN) {
  91                 PRINTF(10, "trying MEMIO\n");
  92                 if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)
  93                         sc->rid = PCIR_BAR(0);
  94                 else
  95                         sc->rid = PCIR_BAR(1);
  96                 sc->iotype = SYS_RES_MEMORY;
  97                 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0,
  98                     ~0, 1, RF_ACTIVE);
  99         }
 100         if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
 101                 PRINTF(10, "trying PORTIO\n");
 102                 sc->rid = PCIR_BAR(0);
 103                 sc->iotype = SYS_RES_IOPORT;
 104                 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0,
 105                     ~0, 1, RF_ACTIVE);
 106         }
 107         if (sc->iores == NULL) {
 108                 device_printf(dev, "resource allocation failed\n");
 109                 return (ENXIO);
 110         }
 111         sc->bustag = rman_get_bustag(sc->iores);
 112         sc->bushandle = rman_get_bushandle(sc->iores);
 113         /*
 114          * allocate an interrupt. when does the irq become active?
 115          * after leaving attach?
 116          */
 117         sc->irqrid = 0;
 118         if ((sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid,
 119             0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
 120                 device_printf(dev, "irq allocation failed\n");
 121                 goto error;
 122         }
 123         if (bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO,
 124             sc->ips_adapter_intr, sc, &sc->irqcookie)) {
 125                 device_printf(dev, "irq setup failed\n");
 126                 goto error;
 127         }
 128         if (bus_dma_tag_create( /* parent    */ NULL,
 129                                 /* alignemnt */ 1,
 130                                 /* boundary  */ 0,
 131                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 132                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 133                                 /* filter    */ NULL,
 134                                 /* filterarg */ NULL,
 135                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 136                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
 137                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
 138                                 /* flags     */ 0,
 139                                 &sc->adapter_dmatag) != 0) {
 140                 printf("IPS can't alloc dma tag\n");
 141                 goto error;
 142         }
 143         sc->ips_ich.ich_func = ips_intrhook;
 144         sc->ips_ich.ich_arg = sc;
 145         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 146                 printf("IPS can't establish configuration hook\n");
 147                 goto error;
 148         }
 149         return 0;
 150 error:
 151         ips_pci_free(sc);
 152         return (ENXIO);
 153 }
 154
 155 static void
 156 ips_intrhook(void *arg)
 157 {
 158         struct ips_softc *sc = arg;
 159
 160         config_intrhook_disestablish(&sc->ips_ich);
 161         if (ips_adapter_init(sc))
 162                 ips_pci_free(sc);
 163         else
 164                 sc->configured = 1;
 165 }
 166
 167 static int
 168 ips_pci_free(ips_softc_t *sc)
 169 {
 170
 171         if (sc->adapter_dmatag)
 172                 bus_dma_tag_destroy(sc->adapter_dmatag);
 173         if (sc->irqcookie)
 174                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 175         if (sc->irqres)
 176                 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid,
 177                     sc->irqres);
 178         if (sc->iores)
 179                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 180         sc->configured = 0;
 181         return 0;
 182 }
 183
 184 static int
 185 ips_pci_detach(device_t dev)
 186 {
 187         ips_softc_t *sc;
 188
 189         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 190         sc = (ips_softc_t *)device_get_softc(dev);
 191         if (sc->configured) {
 192                 sc->configured = 0;
 193                 ips_flush_cache(sc);
 194                 if (ips_adapter_free(sc))
 195                         return EBUSY;
 196                 ips_pci_free(sc);
 197                 IPS_LOCK_FREE(sc);
 198         }
 199         return 0;
 200 }
 201
 202 static int
 203 ips_pci_shutdown(device_t dev)
 204 {
 205         ips_softc_t *sc;
 206
 207         sc = (ips_softc_t *)device_get_softc(dev);
 208         if (sc->configured)
 209                 ips_flush_cache(sc);
 210         return 0;
 211 }
 212
 213 static device_method_t ips_driver_methods[] = {
 214         DEVMETHOD(device_probe, ips_pci_probe),
 215         DEVMETHOD(device_attach, ips_pci_attach),
 216         DEVMETHOD(device_detach, ips_pci_detach),
 217         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 218         { 0, 0 }
 219 };
 220
 221 static driver_t ips_pci_driver = {
 222         "ips",
 223         ips_driver_methods,
 224         sizeof(ips_softc_t),
 225 };
 226
 227 static devclass_t ips_devclass;
 228 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);