1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com> 5 * All rights reserved. 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("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 #include <sys/condvar.h> 36 #include <sys/eventhandler.h> 37 #include <sys/kernel.h> 38 #include <sys/module.h> 39 #include <sys/rman.h> 40 #include <sys/selinfo.h> 41 #include <sys/efi.h> 42 43 #include <dev/pci/pcireg.h> 44 #include <dev/pci/pcivar.h> 45 46 #ifdef LOCAL_MODULE 47 #include <ipmivars.h> 48 #else 49 #include <dev/ipmi/ipmivars.h> 50 #endif 51 52 static int ipmi_pci_probe(device_t dev); 53 static int ipmi_pci_attach(device_t dev); 54 55 static struct ipmi_ident 56 { 57 u_int16_t vendor; 58 u_int16_t device; 59 char *desc; 60 } ipmi_identifiers[] = { 61 {0x1028, 0x000d, "Dell PE2650 SMIC interface"}, 62 {0, 0, 0} 63 }; 64 65 const char * 66 ipmi_pci_match(uint16_t vendor, uint16_t device) 67 { 68 struct ipmi_ident *m; 69 70 for (m = ipmi_identifiers; m->vendor != 0; m++) 71 if (m->vendor == vendor && m->device == device) 72 return (m->desc); 73 return (NULL); 74 } 75 76 static int 77 ipmi_pci_probe(device_t dev) 78 { 79 const char *desc; 80 81 if (ipmi_attached) 82 return (ENXIO); 83 84 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev)); 85 if (desc != NULL) { 86 device_set_desc(dev, desc); 87 return (BUS_PROBE_DEFAULT); 88 } 89 90 return (ENXIO); 91 } 92 93 static int 94 ipmi_pci_attach(device_t dev) 95 { 96 struct ipmi_softc *sc = device_get_softc(dev); 97 struct ipmi_get_info info; 98 const char *mode; 99 int error, type; 100 101 /* Look for an IPMI entry in the SMBIOS table. */ 102 if (!ipmi_smbios_identify(&info)) 103 return (ENXIO); 104 105 sc->ipmi_dev = dev; 106 107 switch (info.iface_type) { 108 case KCS_MODE: 109 mode = "KCS"; 110 break; 111 case SMIC_MODE: 112 mode = "SMIC"; 113 break; 114 case BT_MODE: 115 device_printf(dev, "BT mode is unsupported\n"); 116 return (ENXIO); 117 default: 118 device_printf(dev, "No IPMI interface found\n"); 119 return (ENXIO); 120 } 121 122 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n", 123 mode, info.io_mode ? "io" : "mem", 124 (uintmax_t)info.address, info.offset, 125 device_get_name(device_get_parent(dev))); 126 if (info.io_mode) 127 type = SYS_RES_IOPORT; 128 else 129 type = SYS_RES_MEMORY; 130 131 sc->ipmi_io_rid = PCIR_BAR(0); 132 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 133 &sc->ipmi_io_rid, RF_ACTIVE); 134 sc->ipmi_io_type = type; 135 sc->ipmi_io_spacing = info.offset; 136 137 if (sc->ipmi_io_res[0] == NULL) { 138 device_printf(dev, "couldn't configure pci io res\n"); 139 return (ENXIO); 140 } 141 142 sc->ipmi_irq_rid = 0; 143 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 144 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 145 146 switch (info.iface_type) { 147 case KCS_MODE: 148 error = ipmi_kcs_attach(sc); 149 if (error) 150 goto bad; 151 break; 152 case SMIC_MODE: 153 error = ipmi_smic_attach(sc); 154 if (error) 155 goto bad; 156 break; 157 } 158 error = ipmi_attach(dev); 159 if (error) 160 goto bad; 161 162 return (0); 163 bad: 164 ipmi_release_resources(dev); 165 return (error); 166 } 167 168 static device_method_t ipmi_methods[] = { 169 /* Device interface */ 170 DEVMETHOD(device_probe, ipmi_pci_probe), 171 DEVMETHOD(device_attach, ipmi_pci_attach), 172 DEVMETHOD(device_detach, ipmi_detach), 173 { 0, 0 } 174 }; 175 176 static driver_t ipmi_pci_driver = { 177 "ipmi", 178 ipmi_methods, 179 sizeof(struct ipmi_softc) 180 }; 181 182 DRIVER_MODULE(ipmi_pci, pci, ipmi_pci_driver, 0, 0); 183 184 /* Native IPMI on PCI driver. */ 185 186 static int 187 ipmi2_pci_probe(device_t dev) 188 { 189 190 if (pci_get_class(dev) == PCIC_SERIALBUS && 191 pci_get_subclass(dev) == PCIS_SERIALBUS_IPMI) { 192 device_set_desc(dev, "IPMI System Interface"); 193 return (BUS_PROBE_GENERIC); 194 } 195 196 return (ENXIO); 197 } 198 199 static int 200 ipmi2_pci_attach(device_t dev) 201 { 202 struct ipmi_softc *sc; 203 int error, iface, type; 204 205 sc = device_get_softc(dev); 206 sc->ipmi_dev = dev; 207 208 /* Interface is determined by progif. */ 209 switch (pci_get_progif(dev)) { 210 case PCIP_SERIALBUS_IPMI_SMIC: 211 iface = SMIC_MODE; 212 break; 213 case PCIP_SERIALBUS_IPMI_KCS: 214 iface = KCS_MODE; 215 break; 216 case PCIP_SERIALBUS_IPMI_BT: 217 iface = BT_MODE; 218 device_printf(dev, "BT interface unsupported\n"); 219 return (ENXIO); 220 default: 221 device_printf(dev, "Unsupported interface: %d\n", 222 pci_get_progif(dev)); 223 return (ENXIO); 224 } 225 226 /* Check the BAR to determine our resource type. */ 227 sc->ipmi_io_rid = PCIR_BAR(0); 228 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4))) 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, 0, 0); 296 #ifdef ARCH_MAY_USE_EFI 297 MODULE_DEPEND(ipmi2_pci, efirt, 1, 1, 1); 298 #endif 299