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  */
  30
  31 #include <dev/raid/ips/ips.h>
  32
  33 static int ips_pci_free(ips_softc_t *sc);
  34 static void ips_intrhook(void *arg);
  35
  36 static struct ips_pci_product {
  37         uint16_t vendor, device;
  38         const char *desc;
  39         int (*ips_adapter_reinit)(struct ips_softc *, int);
  40         void (*ips_adapter_intr)(void *);
  41         void (*ips_issue_cmd)(ips_command_t *);
  42         void (*ips_poll_cmd)(ips_command_t *);
  43 } ips_pci_products[] = {
  44         { IPS_VENDOR_ID, IPS_MORPHEUS_DEVICE_ID, "IBM ServeRAID Adapter",
  45           ips_morpheus_reinit, ips_morpheus_intr, ips_issue_morpheus_cmd,
  46           ips_morpheus_poll },
  47         { IPS_VENDOR_ID, IPS_COPPERHEAD_DEVICE_ID, "IBM ServeRAID Adapter",
  48           ips_copperhead_reinit, ips_copperhead_intr, ips_issue_copperhead_cmd,
  49           ips_copperhead_poll },
  50         { IPS_VENDOR_ID_ADAPTEC, IPS_MARCO_DEVICE_ID,
  51           "Adaptec ServeRAID Adapter", ips_morpheus_reinit, ips_morpheus_intr,
  52           ips_issue_morpheus_cmd, ips_morpheus_poll },
  53         { 0, 0, NULL }
  54 };
  55
  56 static int
  57 ips_pci_probe(device_t dev)
  58 {
  59         uint16_t vendor = pci_get_vendor(dev);
  60         uint16_t device = pci_get_device(dev);
  61         struct ips_pci_product *pp;
  62         ips_softc_t *sc;
  63
  64         for (pp = ips_pci_products; pp->vendor; pp++) {
  65                 if (vendor == pp->vendor && device == pp->device) {
  66                         sc = (ips_softc_t *)device_get_softc(dev);
  67                         sc->ips_adapter_reinit = pp->ips_adapter_reinit;
  68                         sc->ips_adapter_intr = pp->ips_adapter_intr;
  69                         sc->ips_issue_cmd = pp->ips_issue_cmd;
  70                         sc->ips_poll_cmd = pp->ips_poll_cmd;
  71                         device_set_desc(dev, pp->desc);
  72                         return (0);
  73                 }
  74         }
  75         return (ENXIO);
  76 }
  77
  78 static int
  79 ips_pci_attach(device_t dev)
  80 {
  81         u_int32_t command;
  82         ips_softc_t *sc;
  83         int error;
  84
  85         if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
  86                 device_printf(dev, "device is disabled\n");
  87                 /* but return 0 so the !$)$)*!$*) unit isn't reused */
  88                 return (0);
  89         }
  90         DEVICE_PRINTF(1, dev, "in attach.\n");
  91         sc = (ips_softc_t *)device_get_softc(dev);
  92         sc->dev = dev;
  93         /* make sure busmastering is on */
  94         pci_enable_busmaster(dev);
  95         command = pci_read_config(dev, PCIR_COMMAND, 1);
  96         /* seting up io space */
  97         sc->iores = NULL;
  98         if (command & PCIM_CMD_MEMEN) {
  99                 PRINTF(10, "trying MEMIO\n");
 100                 if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
 101                         sc->rid = PCIR_BAR(1);
 102                 else
 103                         sc->rid = PCIR_BAR(0);
 104                 sc->iotype = SYS_RES_MEMORY;
 105                 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
 106                     &sc->rid, RF_ACTIVE);
 107         }
 108         if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
 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         /*
 122          * allocate an interrupt. when does the irq become active?
 123          * after leaving attach?
 124          */
 125         sc->irqrid = 0;
 126         if ((sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 127             &sc->irqrid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
 128                 device_printf(dev, "irq allocation failed\n");
 129                 goto error;
 130         }
 131         error = bus_setup_intr(dev, sc->irqres, 0,
 132                                sc->ips_adapter_intr, sc,
 133                                &sc->irqcookie, NULL);
 134         if (error) {
 135                 device_printf(dev, "irq setup failed\n");
 136                 goto error;
 137         }
 138         if (bus_dma_tag_create( /* parent    */ NULL,
 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                                 &sc->adapter_dmatag) != 0) {
 150                 kprintf("IPS can't alloc dma tag\n");
 151                 goto error;
 152         }
 153         sc->ips_ich.ich_func = ips_intrhook;
 154         sc->ips_ich.ich_arg = sc;
 155         sc->ips_ich.ich_desc = "ips";
 156         lockinit(&sc->queue_lock, "ipslk", 0, LK_CANRECURSE);
 157         bioq_init(&sc->bio_queue);
 158         if (config_intrhook_establish(&sc->ips_ich) != 0) {
 159                 kprintf("IPS can't establish configuration hook\n");
 160                 goto error;
 161         }
 162         return 0;
 163 error:
 164         ips_pci_free(sc);
 165         return (ENXIO);
 166 }
 167
 168 static void
 169 ips_intrhook(void *arg)
 170 {
 171         struct ips_softc *sc = arg;
 172
 173         config_intrhook_disestablish(&sc->ips_ich);
 174         if (ips_adapter_init(sc))
 175                 ips_pci_free(sc);
 176         else
 177                 sc->configured = 1;
 178 }
 179
 180 static int
 181 ips_pci_free(ips_softc_t *sc)
 182 {
 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,
 190                     sc->irqres);
 191         if (sc->iores)
 192                 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
 193         sc->configured = 0;
 194         return 0;
 195 }
 196
 197 static int
 198 ips_pci_detach(device_t dev)
 199 {
 200         ips_softc_t *sc;
 201
 202         DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
 203         sc = (ips_softc_t *)device_get_softc(dev);
 204         if (sc->configured) {
 205                 sc->configured = 0;
 206                 ips_flush_cache(sc);
 207                 if (ips_adapter_free(sc))
 208                         return EBUSY;
 209                 ips_pci_free(sc);
 210         }
 211         return 0;
 212 }
 213
 214 static int
 215 ips_pci_shutdown(device_t dev)
 216 {
 217         ips_softc_t *sc;
 218
 219         sc = (ips_softc_t *)device_get_softc(dev);
 220         if (sc->configured)
 221                 ips_flush_cache(sc);
 222         return 0;
 223 }
 224
 225 static device_method_t ips_driver_methods[] = {
 226         DEVMETHOD(device_probe, ips_pci_probe),
 227         DEVMETHOD(device_attach, ips_pci_attach),
 228         DEVMETHOD(device_detach, ips_pci_detach),
 229         DEVMETHOD(device_shutdown, ips_pci_shutdown),
 230         { 0, 0 }
 231 };
 232
 233 static driver_t ips_pci_driver = {
 234         "ips",
 235         ips_driver_methods,
 236         sizeof(ips_softc_t),
 237 };
 238
 239 static devclass_t ips_devclass;
 240 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, NULL, NULL);