1 /*- 2 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/bus.h> 33 #include <sys/condvar.h> 34 #include <sys/eventhandler.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/rman.h> 38 #include <sys/selinfo.h> 39 40 #include <dev/pci/pcireg.h> 41 #include <dev/pci/pcivar.h> 42 43 #ifdef LOCAL_MODULE 44 #include <ipmivars.h> 45 #else 46 #include <dev/ipmi/ipmivars.h> 47 #endif 48 49 static int ipmi_pci_probe(device_t dev); 50 static int ipmi_pci_attach(device_t dev); 51 52 static struct ipmi_ident 53 { 54 u_int16_t vendor; 55 u_int16_t device; 56 char *desc; 57 } ipmi_identifiers[] = { 58 {0x1028, 0x000d, "Dell PE2650 SMIC interface"}, 59 {0, 0, 0} 60 }; 61 62 const char * 63 ipmi_pci_match(uint16_t vendor, uint16_t device) 64 { 65 struct ipmi_ident *m; 66 67 for (m = ipmi_identifiers; m->vendor != 0; m++) 68 if (m->vendor == vendor && m->device == device) 69 return (m->desc); 70 return (NULL); 71 } 72 73 static int 74 ipmi_pci_probe(device_t dev) 75 { 76 const char *desc; 77 78 if (ipmi_attached) 79 return (ENXIO); 80 81 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev)); 82 if (desc != NULL) { 83 device_set_desc(dev, desc); 84 return (BUS_PROBE_DEFAULT); 85 } 86 87 return (ENXIO); 88 } 89 90 static int 91 ipmi_pci_attach(device_t dev) 92 { 93 struct ipmi_softc *sc = device_get_softc(dev); 94 struct ipmi_get_info info; 95 const char *mode; 96 int error, type; 97 98 /* Look for an IPMI entry in the SMBIOS table. */ 99 if (!ipmi_smbios_identify(&info)) 100 return (ENXIO); 101 102 sc->ipmi_dev = dev; 103 104 switch (info.iface_type) { 105 case KCS_MODE: 106 mode = "KCS"; 107 break; 108 case SMIC_MODE: 109 mode = "SMIC"; 110 break; 111 case BT_MODE: 112 device_printf(dev, "BT mode is unsupported\n"); 113 return (ENXIO); 114 default: 115 device_printf(dev, "No IPMI interface found\n"); 116 return (ENXIO); 117 } 118 119 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n", 120 mode, info.io_mode ? "io" : "mem", 121 (uintmax_t)info.address, info.offset, 122 device_get_name(device_get_parent(dev))); 123 if (info.io_mode) 124 type = SYS_RES_IOPORT; 125 else 126 type = SYS_RES_MEMORY; 127 128 sc->ipmi_io_rid = PCIR_BAR(0); 129 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 130 &sc->ipmi_io_rid, RF_ACTIVE); 131 sc->ipmi_io_type = type; 132 sc->ipmi_io_spacing = info.offset; 133 134 if (sc->ipmi_io_res[0] == NULL) { 135 device_printf(dev, "couldn't configure pci io res\n"); 136 return (ENXIO); 137 } 138 139 sc->ipmi_irq_rid = 0; 140 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 141 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 142 143 switch (info.iface_type) { 144 case KCS_MODE: 145 error = ipmi_kcs_attach(sc); 146 if (error) 147 goto bad; 148 break; 149 case SMIC_MODE: 150 error = ipmi_smic_attach(sc); 151 if (error) 152 goto bad; 153 break; 154 } 155 error = ipmi_attach(dev); 156 if (error) 157 goto bad; 158 159 return (0); 160 bad: 161 ipmi_release_resources(dev); 162 return (error); 163 } 164 165 static device_method_t ipmi_methods[] = { 166 /* Device interface */ 167 DEVMETHOD(device_probe, ipmi_pci_probe), 168 DEVMETHOD(device_attach, ipmi_pci_attach), 169 DEVMETHOD(device_detach, ipmi_detach), 170 { 0, 0 } 171 }; 172 173 static driver_t ipmi_pci_driver = { 174 "ipmi", 175 ipmi_methods, 176 sizeof(struct ipmi_softc) 177 }; 178 179 DRIVER_MODULE(ipmi_pci, pci, ipmi_pci_driver, ipmi_devclass, 0, 0); 180 181 /* Native IPMI on PCI driver. */ 182 183 static int 184 ipmi2_pci_probe(device_t dev) 185 { 186 187 if (pci_get_class(dev) == PCIC_SERIALBUS && 188 pci_get_subclass(dev) == 0x07) { 189 device_set_desc(dev, "IPMI System Interface"); 190 return (BUS_PROBE_GENERIC); 191 } 192 193 return (ENXIO); 194 } 195 196 static int 197 ipmi2_pci_attach(device_t dev) 198 { 199 struct ipmi_softc *sc; 200 int error, iface, type; 201 202 sc = device_get_softc(dev); 203 sc->ipmi_dev = dev; 204 205 /* Interface is determined by progif. */ 206 switch (pci_get_progif(dev)) { 207 case 0: 208 iface = SMIC_MODE; 209 break; 210 case 1: 211 iface = KCS_MODE; 212 break; 213 case 2: 214 iface = BT_MODE; 215 device_printf(dev, "BT interface unsupported\n"); 216 return (ENXIO); 217 default: 218 device_printf(dev, "Unsupported interface: %d\n", 219 pci_get_progif(dev)); 220 return (ENXIO); 221 } 222 223 /* 224 * Bottom bit of bar indicates resouce type. There should be 225 * constants in pcireg.h for fields in a BAR. 226 */ 227 sc->ipmi_io_rid = PCIR_BAR(0); 228 if (pci_read_config(dev, PCIR_BAR(0), 4) & 0x1) 229 type = SYS_RES_IOPORT; 230 else 231 type = SYS_RES_MEMORY; 232 sc->ipmi_io_type = type; 233 sc->ipmi_io_spacing = 1; 234 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 235 &sc->ipmi_io_rid, RF_ACTIVE); 236 if (sc->ipmi_io_res[0] == NULL) { 237 device_printf(dev, "couldn't map ports/memory\n"); 238 return (ENXIO); 239 } 240 241 sc->ipmi_irq_rid = 0; 242 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 243 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 244 245 switch (iface) { 246 case KCS_MODE: 247 device_printf(dev, "using KSC interface\n"); 248 249 /* 250 * We have to examine the resource directly to determine the 251 * alignment. 252 */ 253 if (!ipmi_kcs_probe_align(sc)) { 254 device_printf(dev, "Unable to determine alignment\n"); 255 error = ENXIO; 256 goto bad; 257 } 258 259 error = ipmi_kcs_attach(sc); 260 if (error) 261 goto bad; 262 break; 263 case SMIC_MODE: 264 device_printf(dev, "using SMIC interface\n"); 265 266 error = ipmi_smic_attach(sc); 267 if (error) 268 goto bad; 269 break; 270 } 271 error = ipmi_attach(dev); 272 if (error) 273 goto bad; 274 275 return (0); 276 bad: 277 ipmi_release_resources(dev); 278 return (error); 279 } 280 281 static device_method_t ipmi2_methods[] = { 282 /* Device interface */ 283 DEVMETHOD(device_probe, ipmi2_pci_probe), 284 DEVMETHOD(device_attach, ipmi2_pci_attach), 285 DEVMETHOD(device_detach, ipmi_detach), 286 { 0, 0 } 287 }; 288 289 static driver_t ipmi2_pci_driver = { 290 "ipmi", 291 ipmi2_methods, 292 sizeof(struct ipmi_softc) 293 }; 294 295 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, ipmi_devclass, 0, 0); 296