sys/dev/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
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <dev/ips/ipsreg.h>
  33 #include <dev/ips/ips.h>
  34
  35 #include <dev/pci/pcireg.h>
  36 #include <dev/pci/pcivar.h>
  37
  38 static int ips_pci_free(ips_softc_t *sc);
  39 static void ips_intrhook(void *arg);
  40
  41 static int ips_pci_probe(device_t dev)
  42 {
  43
  44         if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  45             (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
  46                 device_set_desc(dev, "IBM ServeRAID Adapter");
  47                 return (BUS_PROBE_DEFAULT);
  48         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  49             (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
  50                 device_set_desc(dev, "IBM ServeRAID Adapter");
  51                 return (BUS_PROBE_DEFAULT);
  52         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
  53             (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
  54                 device_set_desc(dev, "Adaptec ServeRAID Adapter");
  55                 return (BUS_PROBE_DEFAULT);
  56         }
  57         return(ENXIO);
  58 }
  59
  60 static int ips_pci_attach(device_t dev)
  61 {
  62         ips_softc_t *sc;
  63
  64
  65         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  66                 device_printf(dev, "device is disabled\n");
  67                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  68                 return (0);
  69         }
  70         DEVICE_PRINTF(1, dev, "in attach.\n");
  71         sc = (ips_softc_t *)device_get_softc(dev);
  72         if(!sc){
  73                 printf("how is sc NULL?!\n");
  74                 return (ENXIO);
  75         }
  76         bzero(sc, sizeof(ips_softc_t));
  77         sc->dev = dev;
  78
  79         if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
  80                 sc->ips_adapter_reinit = ips_morpheus_reinit;
  81                 sc->ips_adapter_intr = ips_morpheus_intr;
  82                 sc->ips_issue_cmd    = ips_issue_morpheus_cmd;
  83                 sc->ips_poll_cmd     = ips_morpheus_poll;
  84         } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
  85                 sc->ips_adapter_reinit = ips_copperhead_reinit;
  86                 sc->ips_adapter_intr = ips_copperhead_intr;
  87                 sc->ips_issue_cmd    = ips_issue_copperhead_cmd;
  88                 sc->ips_poll_cmd     = ips_copperhead_poll;
  89         } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
  90                 sc->ips_adapter_reinit = ips_morpheus_reinit;
  91                 sc->ips_adapter_intr = ips_morpheus_intr;
  92                 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
  93                 sc->ips_poll_cmd     = ips_morpheus_poll;
  94         } else
  95                 goto error;
  96         /* make sure busmastering is on */
  97         pci_enable_busmaster(dev);
  98         /* seting up io space */
  99         sc->iores = NULL;
 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, &sc->rid,
 107             RF_ACTIVE);
 108         if(!sc->iores){
 109                 PRINTF(10, "trying PORTIO\n");
 110                 sc->rid = PCIR_BAR(0);
 111                 sc->iotype = SYS_RES_IOPORT;
 112                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 113                         &sc->rid, RF_ACTIVE);
 114         }
 115         if(sc->iores == NULL){
 116                 device_printf(dev, "resource allocation failed\n");
 117                 return (ENXIO);
 118         }
 119         sc->bustag = rman_get_bustag(sc->iores);
 120         sc->bushandle = rman_get_bushandle(sc->iores);
 121         /*allocate an interrupt. when does the irq become active? after leaving attach? */
 122         sc->irqrid = 0;
 123         if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 124                 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
 125                 device_printf(dev, "irq allocation failed\n");
 126                 goto error;
 127         }
 128         if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO|INTR_MPSAFE, NULL,
 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( /* PCI parent */bus_get_dma_tag(dev),
 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                                 /* lockfunc  */ NULL,
 145                                 /* lockarg   */ NULL,
 146                                 &sc->adapter_dmatag) != 0) {
 147                 printf("IPS can't alloc dma tag\n");
 148                 goto error;
 149         }
 150         sc->ips_ich.ich_func = ips_intrhook;
 151         sc->ips_ich.ich_arg = sc;
 152         mtx_init(&sc->queue_mtx, "IPS bioqueue lock", NULL, MTX_DEF);
 153         sema_init(&sc->cmd_sema, 0, "IPS Command Semaphore");
 154         bioq_init(&sc->queue);
 155         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 156                 printf("IPS can't establish configuration hook\n");
 157                 goto error;
 158         }
 159         return 0;
 160 error:
 161         ips_pci_free(sc);
 162         return (ENXIO);
 163 }
 164
 165 static void
 166 ips_intrhook(void *arg)
 167 {
 168         struct ips_softc *sc = (struct ips_softc *)arg;
 169
 170         config_intrhook_disestablish(&sc->ips_ich);
 171         if (ips_adapter_init(sc))
 172                 ips_pci_free(sc);
 173         else
 174                 sc->configured = 1;
 175 }
 176
 177 static int ips_pci_free(ips_softc_t *sc)
 178 {
 179         if(sc->adapter_dmatag)
 180                 bus_dma_tag_destroy(sc->adapter_dmatag);
 181         if(sc->irqcookie)
 182                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 183         if(sc->irqres)
 184                bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
 185         if(sc->iores)
 186                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 187         sc->configured = 0;
 188         mtx_destroy(&sc->queue_mtx);
 189         sema_destroy(&sc->cmd_sema);
 190         return 0;
 191 }
 192
 193 static int ips_pci_detach(device_t dev)
 194 {
 195         ips_softc_t *sc;
 196         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 197         sc = (ips_softc_t *) device_get_softc(dev);
 198         if (sc->configured) {
 199                 sc->configured = 0;
 200                 ips_flush_cache(sc);
 201                 if(ips_adapter_free(sc))
 202                         return EBUSY;
 203                 ips_pci_free(sc);
 204                 bioq_flush(&sc->queue, NULL, ENXIO);
 205         }
 206         return 0;
 207 }
 208
 209 static int ips_pci_shutdown(device_t dev)
 210 {
 211         ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
 212         if (sc->configured) {
 213                 ips_flush_cache(sc);
 214         }
 215         return 0;
 216 }
 217
 218 static device_method_t ips_driver_methods[] = {
 219         DEVMETHOD(device_probe, ips_pci_probe),
 220         DEVMETHOD(device_attach, ips_pci_attach),
 221         DEVMETHOD(device_detach, ips_pci_detach),
 222         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 223         {0,0}
 224 };
 225
 226 static driver_t ips_pci_driver = {
 227         "ips",
 228         ips_driver_methods,
 229         sizeof(ips_softc_t),
 230 };
 231
 232 static devclass_t ips_devclass;
 233 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);