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 1.7 2003/09/11 23:30:28 ps 29 * $DragonFly: src/sys/dev/raid/ips/ips_pci.c,v 1.1 2004/01/15 15:41:23 drhodus Exp $ 30 */ 31 32 #include <sys/cdefs.h> 33 34 #include <dev/raid/ips/ips.h> 35 36 static int ips_pci_free(ips_softc_t *sc); 37 static void ips_intrhook(void *arg); 38 39 static int 40 ips_pci_probe(device_t dev) 41 { 42 43 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 44 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) { 45 device_set_desc(dev, "IBM ServeRAID Adapter"); 46 return 0; 47 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 48 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) { 49 device_set_desc(dev, "IBM ServeRAID Adapter"); 50 return (0); 51 } 52 return (ENXIO); 53 } 54 55 static int 56 resource_disabled(const char *name, int unit) 57 { 58 int error, value; 59 60 error = resource_int_value(name, unit, "disabled", &value); 61 if (error) 62 return (0); 63 return (value); 64 } 65 66 static int 67 ips_pci_attach(device_t dev) 68 { 69 u_int32_t command; 70 ips_softc_t *sc; 71 72 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) { 73 device_printf(dev, "device is disabled\n"); 74 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 75 return (0); 76 } 77 DEVICE_PRINTF(1, dev, "in attach.\n"); 78 sc = (ips_softc_t *)device_get_softc(dev); 79 if (sc == NULL) { 80 printf("how is sc NULL?!\n"); 81 return (ENXIO); 82 } 83 bzero(sc, sizeof(ips_softc_t)); 84 sc->dev = dev; 85 if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) { 86 sc->ips_adapter_reinit = ips_morpheus_reinit; 87 sc->ips_adapter_intr = ips_morpheus_intr; 88 sc->ips_issue_cmd = ips_issue_morpheus_cmd; 89 } else if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID) { 90 sc->ips_adapter_reinit = ips_copperhead_reinit; 91 sc->ips_adapter_intr = ips_copperhead_intr; 92 sc->ips_issue_cmd = ips_issue_copperhead_cmd; 93 } else 94 goto error; 95 /* make sure busmastering is on */ 96 command = pci_read_config(dev, PCIR_COMMAND, 1); 97 command |= PCIM_CMD_BUSMASTEREN; 98 pci_write_config(dev, PCIR_COMMAND, command, 1); 99 /* seting up io space */ 100 sc->iores = NULL; 101 if (command & PCIM_CMD_MEMEN) { 102 PRINTF(10, "trying MEMIO\n"); 103 if (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) 104 sc->rid = PCIR_BAR(0); 105 else 106 sc->rid = PCIR_BAR(1); 107 sc->iotype = SYS_RES_MEMORY; 108 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, 109 ~0, 1, RF_ACTIVE); 110 } 111 if (sc->iores == NULL && command & PCIM_CMD_PORTEN) { 112 PRINTF(10, "trying PORTIO\n"); 113 sc->rid = PCIR_BAR(0); 114 sc->iotype = SYS_RES_IOPORT; 115 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, 116 ~0, 1, RF_ACTIVE); 117 } 118 if (sc->iores == NULL) { 119 device_printf(dev, "resource allocation failed\n"); 120 return (ENXIO); 121 } 122 sc->bustag = rman_get_bustag(sc->iores); 123 sc->bushandle = rman_get_bushandle(sc->iores); 124 /* 125 * allocate an interrupt. when does the irq become active? 126 * after leaving attach? 127 */ 128 sc->irqrid = 0; 129 if ((sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 130 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) { 131 device_printf(dev, "irq allocation failed\n"); 132 goto error; 133 } 134 if (bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, 135 sc->ips_adapter_intr, sc, &sc->irqcookie)) { 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 if (config_intrhook_establish(&sc->ips_ich) != 0) { 157 printf("IPS can't establish configuration hook\n"); 158 goto error; 159 } 160 return 0; 161 error: 162 ips_pci_free(sc); 163 return (ENXIO); 164 } 165 166 static void 167 ips_intrhook(void *arg) 168 { 169 struct ips_softc *sc = arg; 170 171 config_intrhook_disestablish(&sc->ips_ich); 172 if (ips_adapter_init(sc)) 173 ips_pci_free(sc); 174 else 175 sc->configured = 1; 176 } 177 178 static int 179 ips_pci_free(ips_softc_t *sc) 180 { 181 182 if (sc->adapter_dmatag) 183 bus_dma_tag_destroy(sc->adapter_dmatag); 184 if (sc->irqcookie) 185 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie); 186 if (sc->irqres) 187 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, 188 sc->irqres); 189 if (sc->iores) 190 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores); 191 sc->configured = 0; 192 return 0; 193 } 194 195 static int 196 ips_pci_detach(device_t dev) 197 { 198 ips_softc_t *sc; 199 200 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n"); 201 sc = (ips_softc_t *)device_get_softc(dev); 202 if (sc->configured) { 203 sc->configured = 0; 204 ips_flush_cache(sc); 205 if (ips_adapter_free(sc)) 206 return EBUSY; 207 ips_pci_free(sc); 208 IPS_LOCK_FREE(sc); 209 } 210 return 0; 211 } 212 213 static int 214 ips_pci_shutdown(device_t dev) 215 { 216 ips_softc_t *sc; 217 218 sc = (ips_softc_t *)device_get_softc(dev); 219 if (sc->configured) 220 ips_flush_cache(sc); 221 return 0; 222 } 223 224 static device_method_t ips_driver_methods[] = { 225 DEVMETHOD(device_probe, ips_pci_probe), 226 DEVMETHOD(device_attach, ips_pci_attach), 227 DEVMETHOD(device_detach, ips_pci_detach), 228 DEVMETHOD(device_shutdown, ips_pci_shutdown), 229 { 0, 0 } 230 }; 231 232 static driver_t ips_pci_driver = { 233 "ips", 234 ips_driver_methods, 235 sizeof(ips_softc_t), 236 }; 237 238 static devclass_t ips_devclass; 239 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0); 240