ips_pci.c revision 126364
1100969Siwasaki/*- 2100969Siwasaki * Copyright (c) 2002 Adaptec Inc. 3100969Siwasaki * All rights reserved. 4100969Siwasaki * 5100969Siwasaki * Written by: David Jeffery 6100969Siwasaki * 7100969Siwasaki * Redistribution and use in source and binary forms, with or without 8100969Siwasaki * modification, are permitted provided that the following conditions 9100969Siwasaki * are met: 10100969Siwasaki * 1. Redistributions of source code must retain the above copyright 11100969Siwasaki * notice, this list of conditions and the following disclaimer. 12100969Siwasaki * 2. Redistributions in binary form must reproduce the above copyright 13100969Siwasaki * notice, this list of conditions and the following disclaimer in the 14100969Siwasaki * documentation and/or other materials provided with the distribution. 15100969Siwasaki * 16100969Siwasaki * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17100969Siwasaki * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18100969Siwasaki * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19100969Siwasaki * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20100969Siwasaki * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21100969Siwasaki * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22100969Siwasaki * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23100969Siwasaki * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24100969Siwasaki * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25100969Siwasaki * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26100969Siwasaki * SUCH DAMAGE. 27100969Siwasaki */ 28100969Siwasaki 29100969Siwasaki#include <sys/cdefs.h> 30100969Siwasaki__FBSDID("$FreeBSD: head/sys/dev/ips/ips_pci.c 126364 2004-02-28 19:14:41Z scottl $"); 31100969Siwasaki 32100969Siwasaki#include <dev/ips/ips.h> 33100969Siwasaki 34100969Siwasakistatic int ips_pci_free(ips_softc_t *sc); 35100969Siwasakistatic void ips_intrhook(void *arg); 36100969Siwasaki 37167814Sjkimstatic int ips_pci_probe(device_t dev) 38100969Siwasaki{ 39100969Siwasaki 40100969Siwasaki if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 41100969Siwasaki (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) { 42100969Siwasaki device_set_desc(dev, "IBM ServeRAID Adapter"); 43100969Siwasaki return 0; 44100969Siwasaki } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 45100969Siwasaki (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) { 46100969Siwasaki device_set_desc(dev, "IBM ServeRAID Adapter"); 47100969Siwasaki return (0); 48100969Siwasaki } 49167814Sjkim return(ENXIO); 50167814Sjkim} 51167814Sjkim 52167814Sjkimstatic int ips_pci_attach(device_t dev) 53100969Siwasaki{ 54100969Siwasaki u_int32_t command; 55100969Siwasaki ips_softc_t *sc; 56167814Sjkim 57167814Sjkim 58205713Smarcel if (resource_disabled(device_get_name(dev), device_get_unit(dev))) { 59205713Smarcel device_printf(dev, "device is disabled\n"); 60100969Siwasaki /* but return 0 so the !$)$)*!$*) unit isn't reused */ 61167814Sjkim return (0); 62100969Siwasaki } 63254300Sjkim DEVICE_PRINTF(1, dev, "in attach.\n"); 64254300Sjkim sc = (ips_softc_t *)device_get_softc(dev); 65254300Sjkim if(!sc){ 66167814Sjkim printf("how is sc NULL?!\n"); 67167814Sjkim return (ENXIO); 68167814Sjkim } 69167814Sjkim bzero(sc, sizeof(ips_softc_t)); 70167814Sjkim sc->dev = dev; 71167814Sjkim 72100969Siwasaki if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){ 73252280Sjkim sc->ips_adapter_reinit = ips_morpheus_reinit; 74252280Sjkim sc->ips_adapter_intr = ips_morpheus_intr; 75100969Siwasaki sc->ips_issue_cmd = ips_issue_morpheus_cmd; 76100969Siwasaki } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){ 77100969Siwasaki sc->ips_adapter_reinit = ips_copperhead_reinit; 78 sc->ips_adapter_intr = ips_copperhead_intr; 79 sc->ips_issue_cmd = ips_issue_copperhead_cmd; 80 } else 81 goto error; 82 /* make sure busmastering is on */ 83 command = pci_read_config(dev, PCIR_COMMAND, 1); 84 command |= PCIM_CMD_BUSMASTEREN; 85 pci_write_config(dev, PCIR_COMMAND, command, 1); 86 /* seting up io space */ 87 sc->iores = NULL; 88 if(command & PCIM_CMD_MEMEN){ 89 PRINTF(10, "trying MEMIO\n"); 90 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) 91 sc->rid = PCIR_BAR(0); 92 else 93 sc->rid = PCIR_BAR(1); 94 sc->iotype = SYS_RES_MEMORY; 95 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE); 96 } 97 if(!sc->iores && command & PCIM_CMD_PORTEN){ 98 PRINTF(10, "trying PORTIO\n"); 99 sc->rid = PCIR_BAR(0); 100 sc->iotype = SYS_RES_IOPORT; 101 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE); 102 } 103 if(sc->iores == NULL){ 104 device_printf(dev, "resource allocation failed\n"); 105 return (ENXIO); 106 } 107 sc->bustag = rman_get_bustag(sc->iores); 108 sc->bushandle = rman_get_bushandle(sc->iores); 109 /*allocate an interrupt. when does the irq become active? after leaving attach? */ 110 sc->irqrid = 0; 111 if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){ 112 device_printf(dev, "irq allocation failed\n"); 113 goto error; 114 } 115 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){ 116 device_printf(dev, "irq setup failed\n"); 117 goto error; 118 } 119 if (bus_dma_tag_create( /* parent */ NULL, 120 /* alignemnt */ 1, 121 /* boundary */ 0, 122 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 123 /* highaddr */ BUS_SPACE_MAXADDR, 124 /* filter */ NULL, 125 /* filterarg */ NULL, 126 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 127 /* numsegs */ IPS_MAX_SG_ELEMENTS, 128 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT, 129 /* flags */ 0, 130 /* lockfunc */ busdma_lock_mutex, 131 /* lockarg */ &Giant, 132 &sc->adapter_dmatag) != 0) { 133 printf("IPS can't alloc dma tag\n"); 134 goto error; 135 } 136 sc->ips_ich.ich_func = ips_intrhook; 137 sc->ips_ich.ich_arg = sc; 138 mtx_init(&sc->queue_mtx, "IPS bioqueue lock", MTX_DEF, 0); 139 bioq_init(&sc->queue); 140 if (config_intrhook_establish(&sc->ips_ich) != 0) { 141 printf("IPS can't establish configuration hook\n"); 142 goto error; 143 } 144 return 0; 145error: 146 ips_pci_free(sc); 147 return (ENXIO); 148} 149 150static void 151ips_intrhook(void *arg) 152{ 153 struct ips_softc *sc = (struct ips_softc *)arg; 154 155 config_intrhook_disestablish(&sc->ips_ich); 156 if (ips_adapter_init(sc)) 157 ips_pci_free(sc); 158 else 159 sc->configured = 1; 160} 161 162static int ips_pci_free(ips_softc_t *sc) 163{ 164 if(sc->adapter_dmatag) 165 bus_dma_tag_destroy(sc->adapter_dmatag); 166 if(sc->irqcookie) 167 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie); 168 if(sc->irqres) 169 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres); 170 if(sc->iores) 171 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores); 172 sc->configured = 0; 173 return 0; 174} 175 176static int ips_pci_detach(device_t dev) 177{ 178 ips_softc_t *sc; 179 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n"); 180 sc = (ips_softc_t *) device_get_softc(dev); 181 if (sc->configured) { 182 sc->configured = 0; 183 ips_flush_cache(sc); 184 if(ips_adapter_free(sc)) 185 return EBUSY; 186 ips_pci_free(sc); 187 bioq_flush(&sc->queue, NULL, ENXIO); 188 } 189 return 0; 190} 191 192static int ips_pci_shutdown(device_t dev) 193{ 194 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev); 195 if (sc->configured) { 196 ips_flush_cache(sc); 197 } 198 return 0; 199} 200 201static device_method_t ips_driver_methods[] = { 202 DEVMETHOD(device_probe, ips_pci_probe), 203 DEVMETHOD(device_attach, ips_pci_attach), 204 DEVMETHOD(device_detach, ips_pci_detach), 205 DEVMETHOD(device_shutdown, ips_pci_shutdown), 206 {0,0} 207}; 208 209static driver_t ips_pci_driver = { 210 "ips", 211 ips_driver_methods, 212 sizeof(ips_softc_t), 213}; 214 215static devclass_t ips_devclass; 216DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0); 217