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