ips_pci.c revision 119418
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: head/sys/dev/ips/ips_pci.c 119418 2003-08-24 17:55:58Z obrien $"); 31 32#include <dev/ips/ips.h> 33 34static int ips_pci_free(ips_softc_t *sc); 35 36static int ips_pci_probe(device_t dev) 37{ 38 39 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 40 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) { 41 device_set_desc(dev, "IBM ServeRAID Adapter"); 42 return 0; 43 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) && 44 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) { 45 device_set_desc(dev, "IBM ServeRAID Adapter"); 46 return (0); 47 } 48 return(ENXIO); 49} 50 51static int ips_pci_attach(device_t dev) 52{ 53 u_int32_t command; 54 ips_softc_t *sc; 55 56 57 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) { 58 device_printf(dev, "device is disabled\n"); 59 /* but return 0 so the !$)$)*!$*) unit isn't reused */ 60 return (0); 61 } 62 DEVICE_PRINTF(1, dev, "in attach.\n"); 63 sc = (ips_softc_t *)device_get_softc(dev); 64 if(!sc){ 65 printf("how is sc NULL?!\n"); 66 return (ENXIO); 67 } 68 bzero(sc, sizeof(ips_softc_t)); 69 sc->dev = dev; 70 71 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){ 72 sc->ips_adapter_reinit = ips_morpheus_reinit; 73 sc->ips_adapter_intr = ips_morpheus_intr; 74 sc->ips_issue_cmd = ips_issue_morpheus_cmd; 75 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){ 76 sc->ips_adapter_reinit = ips_copperhead_reinit; 77 sc->ips_adapter_intr = ips_copperhead_intr; 78 sc->ips_issue_cmd = ips_issue_copperhead_cmd; 79 } else 80 goto error; 81 /* make sure busmastering is on */ 82 command = pci_read_config(dev, PCIR_COMMAND, 1); 83 command |= PCIM_CMD_BUSMASTEREN; 84 pci_write_config(dev, PCIR_COMMAND, command, 1); 85 /* seting up io space */ 86 sc->iores = NULL; 87 if(command & PCIM_CMD_MEMEN){ 88 PRINTF(10, "trying MEMIO\n"); 89 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID) 90 sc->rid = PCIR_MAPS; 91 else 92 sc->rid = PCIR_MAPS + 4; 93 sc->iotype = SYS_RES_MEMORY; 94 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE); 95 } 96 if(!sc->iores && command & PCIM_CMD_PORTEN){ 97 PRINTF(10, "trying PORTIO\n"); 98 sc->rid = PCIR_MAPS; 99 sc->iotype = SYS_RES_IOPORT; 100 sc->iores = bus_alloc_resource(dev, sc->iotype, &sc->rid, 0, ~0, 1, RF_ACTIVE); 101 } 102 if(sc->iores == NULL){ 103 device_printf(dev, "resource allocation failed\n"); 104 return (ENXIO); 105 } 106 sc->bustag = rman_get_bustag(sc->iores); 107 sc->bushandle = rman_get_bushandle(sc->iores); 108 /*allocate an interrupt. when does the irq become active? after leaving attach? */ 109 sc->irqrid = 0; 110 if(!(sc->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqrid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE))){ 111 device_printf(dev, "irq allocation failed\n"); 112 goto error; 113 } 114 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){ 115 device_printf(dev, "irq setup failed\n"); 116 goto error; 117 } 118 if (bus_dma_tag_create( /* parent */ NULL, 119 /* alignemnt */ 1, 120 /* boundary */ 0, 121 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 122 /* highaddr */ BUS_SPACE_MAXADDR, 123 /* filter */ NULL, 124 /* filterarg */ NULL, 125 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT, 126 /* numsegs */ IPS_MAX_SG_ELEMENTS, 127 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT, 128 /* flags */ 0, 129 /* lockfunc */ busdma_lock_mutex, 130 /* lockarg */ &Giant, 131 &sc->adapter_dmatag) != 0) { 132 printf("IPS can't alloc dma tag\n"); 133 goto error; 134 } 135 if(ips_adapter_init(sc)) 136 goto error; 137 sc->configured = 1; 138 return 0; 139error: 140 ips_pci_free(sc); 141 return (ENXIO); 142} 143 144static int ips_pci_free(ips_softc_t *sc) 145{ 146 if(sc->adapter_dmatag) 147 bus_dma_tag_destroy(sc->adapter_dmatag); 148 if(sc->irqcookie) 149 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie); 150 if(sc->irqres) 151 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres); 152 if(sc->iores) 153 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores); 154 sc->configured = 0; 155 return 0; 156} 157 158static int ips_pci_detach(device_t dev) 159{ 160 ips_softc_t *sc; 161 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n"); 162 sc = (ips_softc_t *) device_get_softc(dev); 163 if (sc->configured) { 164 sc->configured = 0; 165 ips_flush_cache(sc); 166 if(ips_adapter_free(sc)) 167 return EBUSY; 168 ips_pci_free(sc); 169 mtx_destroy(&sc->cmd_mtx); 170 } 171 return 0; 172} 173 174static int ips_pci_shutdown(device_t dev) 175{ 176 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev); 177 if (sc->configured) { 178 ips_flush_cache(sc); 179 } 180 return 0; 181} 182 183static device_method_t ips_driver_methods[] = { 184 DEVMETHOD(device_probe, ips_pci_probe), 185 DEVMETHOD(device_attach, ips_pci_attach), 186 DEVMETHOD(device_detach, ips_pci_detach), 187 DEVMETHOD(device_shutdown, ips_pci_shutdown), 188 {0,0} 189}; 190 191static driver_t ips_pci_driver = { 192 "ips", 193 ips_driver_methods, 194 sizeof(ips_softc_t), 195}; 196 197static devclass_t ips_devclass; 198DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0); 199