1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 #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 #include <sys/efi.h> 40 41 #include <dev/pci/pcireg.h> 42 #include <dev/pci/pcivar.h> 43 44 #ifdef LOCAL_MODULE 45 #include <ipmivars.h> 46 #else 47 #include <dev/ipmi/ipmivars.h> 48 #endif 49 50 static int ipmi_pci_probe(device_t dev); 51 static int ipmi_pci_attach(device_t dev); 52 53 static struct ipmi_ident 54 { 55 u_int16_t vendor; 56 u_int16_t device; 57 char *desc; 58 } ipmi_identifiers[] = { 59 {0x1028, 0x000d, "Dell PE2650 SMIC interface"}, 60 {0, 0, 0} 61 }; 62 63 const char * 64 ipmi_pci_match(uint16_t vendor, uint16_t device) 65 { 66 struct ipmi_ident *m; 67 68 for (m = ipmi_identifiers; m->vendor != 0; m++) 69 if (m->vendor == vendor && m->device == device) 70 return (m->desc); 71 return (NULL); 72 } 73 74 static int 75 ipmi_pci_probe(device_t dev) 76 { 77 const char *desc; 78 79 if (ipmi_attached) 80 return (ENXIO); 81 82 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev)); 83 if (desc != NULL) { 84 device_set_desc(dev, desc); 85 return (BUS_PROBE_DEFAULT); 86 } 87 88 return (ENXIO); 89 } 90 91 static int 92 ipmi_pci_attach(device_t dev) 93 { 94 struct ipmi_softc *sc = device_get_softc(dev); 95 struct ipmi_get_info info; 96 const char *mode; 97 int error, type; 98 99 /* Look for an IPMI entry in the SMBIOS table. */ 100 if (!ipmi_smbios_identify(&info)) 101 return (ENXIO); 102 103 sc->ipmi_dev = dev; 104 105 switch (info.iface_type) { 106 case KCS_MODE: 107 mode = "KCS"; 108 break; 109 case SMIC_MODE: 110 mode = "SMIC"; 111 break; 112 case BT_MODE: 113 mode = "BT"; 114 break; 115 default: 116 device_printf(dev, "No IPMI interface found\n"); 117 return (ENXIO); 118 } 119 120 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n", 121 mode, info.io_mode ? "io" : "mem", 122 (uintmax_t)info.address, info.offset, 123 device_get_name(device_get_parent(dev))); 124 if (info.io_mode) 125 type = SYS_RES_IOPORT; 126 else 127 type = SYS_RES_MEMORY; 128 129 sc->ipmi_io_rid = PCIR_BAR(0); 130 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 131 &sc->ipmi_io_rid, RF_ACTIVE); 132 sc->ipmi_io_type = type; 133 sc->ipmi_io_spacing = info.offset; 134 135 if (sc->ipmi_io_res[0] == NULL) { 136 device_printf(dev, "couldn't configure pci io res\n"); 137 return (ENXIO); 138 } 139 140 sc->ipmi_irq_rid = 0; 141 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 142 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 143 144 error = ENXIO; 145 switch (info.iface_type) { 146 case KCS_MODE: 147 error = ipmi_kcs_attach(sc); 148 break; 149 case SMIC_MODE: 150 error = ipmi_smic_attach(sc); 151 break; 152 case BT_MODE: 153 error = ipmi_bt_attach(sc); 154 break; 155 } 156 if (error) 157 goto bad; 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 break; 219 default: 220 device_printf(dev, "Unsupported interface: %d\n", 221 pci_get_progif(dev)); 222 return (ENXIO); 223 } 224 225 /* Check the BAR to determine our resource type. */ 226 sc->ipmi_io_rid = PCIR_BAR(0); 227 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4))) 228 type = SYS_RES_IOPORT; 229 else 230 type = SYS_RES_MEMORY; 231 sc->ipmi_io_type = type; 232 sc->ipmi_io_spacing = 1; 233 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type, 234 &sc->ipmi_io_rid, RF_ACTIVE); 235 if (sc->ipmi_io_res[0] == NULL) { 236 device_printf(dev, "couldn't map ports/memory\n"); 237 return (ENXIO); 238 } 239 240 sc->ipmi_irq_rid = 0; 241 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 242 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE); 243 244 error = ENXIO; 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 goto bad; 256 } 257 258 error = ipmi_kcs_attach(sc); 259 if (error) 260 goto bad; 261 break; 262 case SMIC_MODE: 263 device_printf(dev, "using SMIC interface\n"); 264 error = ipmi_smic_attach(sc); 265 break; 266 case BT_MODE: 267 device_printf(dev, "using BT interface\n"); 268 error = ipmi_bt_attach(sc); 269 break; 270 } 271 if (error) 272 goto bad; 273 error = ipmi_attach(dev); 274 if (error) 275 goto bad; 276 277 return (0); 278 bad: 279 ipmi_release_resources(dev); 280 return (error); 281 } 282 283 static device_method_t ipmi2_methods[] = { 284 /* Device interface */ 285 DEVMETHOD(device_probe, ipmi2_pci_probe), 286 DEVMETHOD(device_attach, ipmi2_pci_attach), 287 DEVMETHOD(device_detach, ipmi_detach), 288 { 0, 0 } 289 }; 290 291 static driver_t ipmi2_pci_driver = { 292 "ipmi", 293 ipmi2_methods, 294 sizeof(struct ipmi_softc) 295 }; 296 297 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, 0, 0); 298 #ifdef ARCH_MAY_USE_EFI 299 MODULE_DEPEND(ipmi2_pci, efirt, 1, 1, 1); 300 #endif 301