1/*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001-2010 Adaptec, Inc. 6 * Copyright (c) 2010-2012 PMC-Sierra, Inc. 7 * All rights reserved. 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/* 35 * PCI bus interface and resource allocation. 36 */ 37 38#include "opt_aacraid.h" 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/module.h> 44 45#include <sys/bio.h> 46#include <sys/bus.h> 47#include <sys/conf.h> 48#include <sys/disk.h> 49 50#include <machine/bus.h> 51#include <machine/resource.h> 52#include <sys/rman.h> 53 54#include <dev/pci/pcireg.h> 55#include <dev/pci/pcivar.h> 56 57#include <dev/aacraid/aacraid_reg.h> 58#include <sys/aac_ioctl.h> 59#include <dev/aacraid/aacraid_debug.h> 60#include <dev/aacraid/aacraid_var.h> 61 62static int aacraid_pci_probe(device_t dev); 63static int aacraid_pci_attach(device_t dev); 64 65static device_method_t aacraid_methods[] = { 66 /* Device interface */ 67 DEVMETHOD(device_probe, aacraid_pci_probe), 68 DEVMETHOD(device_attach, aacraid_pci_attach), 69 DEVMETHOD(device_detach, aacraid_detach), 70 DEVMETHOD(device_suspend, aacraid_suspend), 71 DEVMETHOD(device_resume, aacraid_resume), 72 73 DEVMETHOD(bus_print_child, bus_generic_print_child), 74 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 75 { 0, 0 } 76}; 77 78static driver_t aacraid_pci_driver = { 79 "aacraid", 80 aacraid_methods, 81 sizeof(struct aac_softc) 82}; 83 84static devclass_t aacraid_devclass; 85 86DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, aacraid_devclass, 0, 0); 87MODULE_DEPEND(aacraid, pci, 1, 1, 1); 88 89struct aac_ident 90{ 91 u_int16_t vendor; 92 u_int16_t device; 93 u_int16_t subvendor; 94 u_int16_t subdevice; 95 int hwif; 96 int quirks; 97 char *desc; 98} aacraid_family_identifiers[] = { 99 {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0, 100 "Adaptec RAID Controller"}, 101 {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0, 102 "Adaptec RAID Controller"}, 103 {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0, 104 "Adaptec RAID Controller"}, 105 {0x9005, 0x028f, 0, 0, AAC_HWIF_SRCV, 0, 106 "Adaptec RAID Controller"}, 107 {0, 0, 0, 0, 0, 0, 0} 108}; 109 110static struct aac_ident * 111aac_find_ident(device_t dev) 112{ 113 struct aac_ident *m; 114 u_int16_t vendid, devid, sub_vendid, sub_devid; 115 116 vendid = pci_get_vendor(dev); 117 devid = pci_get_device(dev); 118 sub_vendid = pci_get_subvendor(dev); 119 sub_devid = pci_get_subdevice(dev); 120 121 for (m = aacraid_family_identifiers; m->vendor != 0; m++) { 122 if ((m->vendor == vendid) && (m->device == devid)) 123 return (m); 124 } 125 126 return (NULL); 127} 128 129/* 130 * Determine whether this is one of our supported adapters. 131 */ 132static int 133aacraid_pci_probe(device_t dev) 134{ 135 struct aac_ident *id; 136 137 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 138 139 if ((id = aac_find_ident(dev)) != NULL) { 140 device_set_desc(dev, id->desc); 141 return(BUS_PROBE_DEFAULT); 142 } 143 return(ENXIO); 144} 145 146/* 147 * Allocate resources for our device, set up the bus interface. 148 */ 149static int 150aacraid_pci_attach(device_t dev) 151{ 152 struct aac_softc *sc; 153 struct aac_ident *id; 154 int error; 155 u_int32_t command; 156 157 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 158 159 /* 160 * Initialise softc. 161 */ 162 sc = device_get_softc(dev); 163 bzero(sc, sizeof(*sc)); 164 sc->aac_dev = dev; 165 166 /* assume failure is 'not configured' */ 167 error = ENXIO; 168 169 /* 170 * Verify that the adapter is correctly set up in PCI space. 171 */ 172 pci_enable_busmaster(dev); 173 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2); 174 if (!(command & PCIM_CMD_BUSMASTEREN)) { 175 device_printf(sc->aac_dev, "can't enable bus-master feature\n"); 176 goto out; 177 } 178 179 /* 180 * Detect the hardware interface version, set up the bus interface 181 * indirection. 182 */ 183 id = aac_find_ident(dev); 184 sc->aac_hwif = id->hwif; 185 switch(sc->aac_hwif) { 186 case AAC_HWIF_SRC: 187 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC"); 188 sc->aac_if = aacraid_src_interface; 189 break; 190 case AAC_HWIF_SRCV: 191 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv"); 192 sc->aac_if = aacraid_srcv_interface; 193 break; 194 default: 195 sc->aac_hwif = AAC_HWIF_UNKNOWN; 196 device_printf(sc->aac_dev, "unknown hardware type\n"); 197 error = ENXIO; 198 goto out; 199 } 200 201 /* assume failure is 'out of memory' */ 202 error = ENOMEM; 203 204 /* 205 * Allocate the PCI register window. 206 */ 207 sc->aac_regs_rid0 = PCIR_BAR(0); 208 if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev, 209 SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) { 210 device_printf(sc->aac_dev, 211 "couldn't allocate register window 0\n"); 212 goto out; 213 } 214 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0); 215 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0); 216 217 sc->aac_regs_rid1 = PCIR_BAR(2); 218 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev, 219 SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) { 220 device_printf(sc->aac_dev, 221 "couldn't allocate register window 1\n"); 222 goto out; 223 } 224 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1); 225 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1); 226 227 /* 228 * Allocate the parent bus DMA tag appropriate for our PCI interface. 229 * 230 * Note that some of these controllers are 64-bit capable. 231 */ 232 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 233 PAGE_SIZE, 0, /* algnmnt, boundary */ 234 BUS_SPACE_MAXADDR, /* lowaddr */ 235 BUS_SPACE_MAXADDR, /* highaddr */ 236 NULL, NULL, /* filter, filterarg */ 237 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 238 BUS_SPACE_UNRESTRICTED, /* nsegments */ 239 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 240 0, /* flags */ 241 NULL, NULL, /* No locking needed */ 242 &sc->aac_parent_dmat)) { 243 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n"); 244 goto out; 245 } 246 247 /* Set up quirks */ 248 sc->flags = id->quirks; 249 250 /* 251 * Do bus-independent initialisation. 252 */ 253 error = aacraid_attach(sc); 254 255out: 256 if (error) 257 aacraid_free(sc); 258 return(error); 259} 260