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 1.13 2005/08/09 16:23:13 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         void (*ips_poll_cmd)(ips_command_t *);
  44 } ips_pci_products[] = {
  45         { IPS_VENDOR_ID, IPS_MORPHEUS_DEVICE_ID, "IBM ServeRAID Adapter",
  46           ips_morpheus_reinit, ips_morpheus_intr, ips_issue_morpheus_cmd,
  47           ips_morpheus_poll },
  48         { IPS_VENDOR_ID, IPS_COPPERHEAD_DEVICE_ID, "IBM ServeRAID Adapter",
  49           ips_copperhead_reinit, ips_copperhead_intr, ips_issue_copperhead_cmd,
  50           ips_copperhead_poll },
  51         { IPS_VENDOR_ID_ADAPTEC, IPS_MARCO_DEVICE_ID,
  52           "Adaptec ServeRAID Adapter", ips_morpheus_reinit, ips_morpheus_intr,
  53           ips_issue_morpheus_cmd, ips_morpheus_poll },
  54         { 0, 0, NULL }
  55 };
  56
  57 static int
  58 ips_pci_probe(device_t dev)
  59 {
  60         uint16_t vendor = pci_get_vendor(dev);
  61         uint16_t device = pci_get_device(dev);
  62         struct ips_pci_product *pp;
  63         ips_softc_t *sc;
  64
  65         for (pp = ips_pci_products; pp->vendor; pp++) {
  66                 if (vendor == pp->vendor && device == pp->device) {
  67                         sc = (ips_softc_t *)device_get_softc(dev);
  68                         sc->ips_adapter_reinit = pp->ips_adapter_reinit;
  69                         sc->ips_adapter_intr = pp->ips_adapter_intr;
  70                         sc->ips_issue_cmd = pp->ips_issue_cmd;
  71                         sc->ips_poll_cmd = pp->ips_poll_cmd;
  72                         device_set_desc(dev, pp->desc);
  73                         return (0);
  74                 }
  75         }
  76         return (ENXIO);
  77 }
  78
  79 static int
  80 ips_pci_attach(device_t dev)
  81 {
  82         u_int32_t command;
  83         ips_softc_t *sc;
  84         int error;
  85
  86         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  87                 device_printf(dev, "device is disabled\n");
  88                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  89                 return (0);
  90         }
  91         DEVICE_PRINTF(1, dev, "in attach.\n");
  92         sc = (ips_softc_t *)device_get_softc(dev);
  93         sc->dev = dev;
  94         /* make sure busmastering is on */
  95         pci_enable_busmaster(dev);
  96         command = pci_read_config(dev, PCIR_COMMAND, 1);
  97         /* seting up io space */
  98         sc->iores = NULL;
  99         if (command & PCIM_CMD_MEMEN) {
 100                 PRINTF(10, "trying MEMIO\n");
 101                 if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
 102                         sc->rid = PCIR_BAR(1);
 103                 else
 104                         sc->rid = PCIR_BAR(0);
 105                 sc->iotype = SYS_RES_MEMORY;
 106                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 107                     &sc->rid, RF_ACTIVE);
 108         }
 109         if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
 110                 PRINTF(10, "trying PORTIO\n");
 111                 sc->rid = PCIR_BAR(0);
 112                 sc->iotype = SYS_RES_IOPORT;
 113                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 114                     &sc->rid, RF_ACTIVE);
 115         }
 116         if (sc->iores == NULL) {
 117                 device_printf(dev, "resource allocation failed\n");
 118                 return (ENXIO);
 119         }
 120         sc->bustag = rman_get_bustag(sc->iores);
 121         sc->bushandle = rman_get_bushandle(sc->iores);
 122         /*
 123          * allocate an interrupt. when does the irq become active?
 124          * after leaving attach?
 125          */
 126         sc->irqrid = 0;
 127         if ((sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 128             &sc->irqrid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
 129                 device_printf(dev, "irq allocation failed\n");
 130                 goto error;
 131         }
 132         error = bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO,
 133                                sc->ips_adapter_intr, sc,
 134                                &sc->irqcookie, NULL);
 135         if (error) {
 136                 device_printf(dev, "irq setup failed\n");
 137                 goto error;
 138         }
 139         if (bus_dma_tag_create( /* parent    */ NULL,
 140                                 /* alignemnt */ 1,
 141                                 /* boundary  */ 0,
 142                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 143                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 144                                 /* filter    */ NULL,
 145                                 /* filterarg */ NULL,
 146                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 147                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
 148                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
 149                                 /* flags     */ 0,
 150                                 &sc->adapter_dmatag) != 0) {
 151                 printf("IPS can't alloc dma tag\n");
 152                 goto error;
 153         }
 154         sc->ips_ich.ich_func = ips_intrhook;
 155         sc->ips_ich.ich_arg = sc;
 156         sc->ips_ich.ich_desc = "ips";
 157         lwkt_rwlock_init(&sc->queue_lock);
 158         bufq_init(&sc->queue);
 159         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 160                 printf("IPS can't establish configuration hook\n");
 161                 goto error;
 162         }
 163         return 0;
 164 error:
 165         ips_pci_free(sc);
 166         return (ENXIO);
 167 }
 168
 169 static void
 170 ips_intrhook(void *arg)
 171 {
 172         struct ips_softc *sc = arg;
 173
 174         config_intrhook_disestablish(&sc->ips_ich);
 175         if (ips_adapter_init(sc))
 176                 ips_pci_free(sc);
 177         else
 178                 sc->configured = 1;
 179 }
 180
 181 static int
 182 ips_pci_free(ips_softc_t *sc)
 183 {
 184
 185         if (sc->adapter_dmatag)
 186                 bus_dma_tag_destroy(sc->adapter_dmatag);
 187         if (sc->irqcookie)
 188                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 189         if (sc->irqres)
 190                 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid,
 191                     sc->irqres);
 192         if (sc->iores)
 193                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 194         sc->configured = 0;
 195         return 0;
 196 }
 197
 198 static int
 199 ips_pci_detach(device_t dev)
 200 {
 201         ips_softc_t *sc;
 202
 203         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 204         sc = (ips_softc_t *)device_get_softc(dev);
 205         if (sc->configured) {
 206                 sc->configured = 0;
 207                 ips_flush_cache(sc);
 208                 if (ips_adapter_free(sc))
 209                         return EBUSY;
 210                 ips_pci_free(sc);
 211         }
 212         return 0;
 213 }
 214
 215 static int
 216 ips_pci_shutdown(device_t dev)
 217 {
 218         ips_softc_t *sc;
 219
 220         sc = (ips_softc_t *)device_get_softc(dev);
 221         if (sc->configured)
 222                 ips_flush_cache(sc);
 223         return 0;
 224 }
 225
 226 static device_method_t ips_driver_methods[] = {
 227         DEVMETHOD(device_probe, ips_pci_probe),
 228         DEVMETHOD(device_attach, ips_pci_attach),
 229         DEVMETHOD(device_detach, ips_pci_detach),
 230         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 231         { 0, 0 }
 232 };
 233
 234 static driver_t ips_pci_driver = {
 235         "ips",
 236         ips_driver_methods,
 237         sizeof(ips_softc_t),
 238 };
 239
 240 static devclass_t ips_devclass;
 241 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);