sys/dev/ips/ips_pci.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2002 Adaptec Inc.
   5  * All rights reserved.
   6  *
   7  * Written by: David Jeffery
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __FBSDID("$FreeBSD$");
  33
  34 #include <dev/ips/ipsreg.h>
  35 #include <dev/ips/ips.h>
  36
  37 #include <dev/pci/pcireg.h>
  38 #include <dev/pci/pcivar.h>
  39
  40 static int ips_pci_free(ips_softc_t *sc);
  41 static void ips_intrhook(void *arg);
  42
  43 static int ips_pci_probe(device_t dev)
  44 {
  45
  46         if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  47             (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
  48                 device_set_desc(dev, "IBM ServeRAID Adapter");
  49                 return (BUS_PROBE_DEFAULT);
  50         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
  51             (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
  52                 device_set_desc(dev, "IBM ServeRAID Adapter");
  53                 return (BUS_PROBE_DEFAULT);
  54         } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
  55             (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
  56                 device_set_desc(dev, "Adaptec ServeRAID Adapter");
  57                 return (BUS_PROBE_DEFAULT);
  58         }
  59         return(ENXIO);
  60 }
  61
  62 static int ips_pci_attach(device_t dev)
  63 {
  64         ips_softc_t *sc;
  65
  66         DEVICE_PRINTF(1, dev, "in attach.\n");
  67         sc = (ips_softc_t *)device_get_softc(dev);
  68         sc->dev = dev;
  69         mtx_init(&sc->queue_mtx, "IPS bioqueue lock", NULL, MTX_DEF);
  70         sema_init(&sc->cmd_sema, 0, "IPS Command Semaphore");
  71         callout_init_mtx(&sc->timer, &sc->queue_mtx, 0);
  72
  73         if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
  74                 sc->ips_adapter_reinit = ips_morpheus_reinit;
  75                 sc->ips_adapter_intr = ips_morpheus_intr;
  76                 sc->ips_issue_cmd    = ips_issue_morpheus_cmd;
  77                 sc->ips_poll_cmd     = ips_morpheus_poll;
  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                 sc->ips_poll_cmd     = ips_copperhead_poll;
  83         } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
  84                 sc->ips_adapter_reinit = ips_morpheus_reinit;
  85                 sc->ips_adapter_intr = ips_morpheus_intr;
  86                 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
  87                 sc->ips_poll_cmd     = ips_morpheus_poll;
  88         } else
  89                 goto error;
  90         /* make sure busmastering is on */
  91         pci_enable_busmaster(dev);
  92         /* setting up io space */
  93         sc->iores = NULL;
  94         PRINTF(10, "trying MEMIO\n");
  95         if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
  96                 sc->rid = PCIR_BAR(1);
  97         else
  98                 sc->rid = PCIR_BAR(0);
  99         sc->iotype = SYS_RES_MEMORY;
 100         sc->iores = bus_alloc_resource_any(dev, sc->iotype, &sc->rid,
 101             RF_ACTIVE);
 102         if(!sc->iores){
 103                 PRINTF(10, "trying PORTIO\n");
 104                 sc->rid = PCIR_BAR(0);
 105                 sc->iotype = SYS_RES_IOPORT;
 106                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 107                         &sc->rid, RF_ACTIVE);
 108         }
 109         if(sc->iores == NULL){
 110                 device_printf(dev, "resource allocation failed\n");
 111                 return (ENXIO);
 112         }
 113         /*allocate an interrupt. when does the irq become active? after leaving attach? */
 114         sc->irqrid = 0;
 115         if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 116                 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
 117                 device_printf(dev, "irq allocation failed\n");
 118                 goto error;
 119         }
 120         if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO|INTR_MPSAFE, NULL,
 121             sc->ips_adapter_intr, sc, &sc->irqcookie)){
 122                 device_printf(dev, "irq setup failed\n");
 123                 goto error;
 124         }
 125         if (bus_dma_tag_create( /* PCI parent */bus_get_dma_tag(dev),
 126                                 /* alignemnt */ 1,
 127                                 /* boundary  */ 0,
 128                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 129                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 130                                 /* filter    */ NULL,
 131                                 /* filterarg */ NULL,
 132                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 133                                 /* numsegs   */ IPS_MAX_SG_ELEMENTS,
 134                                 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
 135                                 /* flags     */ 0,
 136                                 /* lockfunc  */ NULL,
 137                                 /* lockarg   */ NULL,
 138                                 &sc->adapter_dmatag) != 0) {
 139                 device_printf(dev, "can't alloc dma tag\n");
 140                 goto error;
 141         }
 142         sc->ips_ich.ich_func = ips_intrhook;
 143         sc->ips_ich.ich_arg = sc;
 144         bioq_init(&sc->queue);
 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 = (struct ips_softc *)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 ips_pci_free(ips_softc_t *sc)
 168 {
 169         if(sc->adapter_dmatag)
 170                 bus_dma_tag_destroy(sc->adapter_dmatag);
 171         if(sc->irqcookie)
 172                 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
 173         if(sc->irqres)
 174                bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
 175         if(sc->iores)
 176                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 177         sc->configured = 0;
 178         mtx_destroy(&sc->queue_mtx);
 179         sema_destroy(&sc->cmd_sema);
 180         return 0;
 181 }
 182
 183 static int ips_pci_detach(device_t dev)
 184 {
 185         ips_softc_t *sc;
 186         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 187         sc = (ips_softc_t *) device_get_softc(dev);
 188         if (sc->configured) {
 189                 sc->configured = 0;
 190                 ips_flush_cache(sc);
 191                 if(ips_adapter_free(sc))
 192                         return EBUSY;
 193                 ips_pci_free(sc);
 194                 bioq_flush(&sc->queue, NULL, ENXIO);
 195         }
 196         return 0;
 197 }
 198
 199 static int ips_pci_shutdown(device_t dev)
 200 {
 201         ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
 202         if (sc->configured) {
 203                 ips_flush_cache(sc);
 204         }
 205         return 0;
 206 }
 207
 208 static device_method_t ips_driver_methods[] = {
 209         DEVMETHOD(device_probe, ips_pci_probe),
 210         DEVMETHOD(device_attach, ips_pci_attach),
 211         DEVMETHOD(device_detach, ips_pci_detach),
 212         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 213         {0,0}
 214 };
 215
 216 static driver_t ips_pci_driver = {
 217         "ips",
 218         ips_driver_methods,
 219         sizeof(ips_softc_t),
 220 };
 221
 222 static devclass_t ips_devclass;
 223 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);