1/* 2 * Copyright (c) 2008, Intel Corporation. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * You should have received a copy of the GNU General Public License along with 14 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple 15 * Place - Suite 330, Boston, MA 02111-1307 USA. 16 * 17 * Author: Lucy Liu <lucy.liu@intel.com> 18 */ 19 20#ifndef __LINUX_DCBNL_H__ 21#define __LINUX_DCBNL_H__ 22 23#include <linux/types.h> 24 25#define DCB_PROTO_VERSION 1 26 27struct dcbmsg { 28 __u8 dcb_family; 29 __u8 cmd; 30 __u16 dcb_pad; 31}; 32 33/** 34 * enum dcbnl_commands - supported DCB commands 35 * 36 * @DCB_CMD_UNDEFINED: unspecified command to catch errors 37 * @DCB_CMD_GSTATE: request the state of DCB in the device 38 * @DCB_CMD_SSTATE: set the state of DCB in the device 39 * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx 40 * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx 41 * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx 42 * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx 43 * @DCB_CMD_PFC_GCFG: request the priority flow control configuration 44 * @DCB_CMD_PFC_SCFG: set the priority flow control configuration 45 * @DCB_CMD_SET_ALL: apply all changes to the underlying device 46 * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying 47 * device. Only useful when using bonding. 48 * @DCB_CMD_GCAP: request the DCB capabilities of the device 49 * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported 50 * @DCB_CMD_SNUMTCS: set the number of traffic classes 51 * @DCB_CMD_GBCN: set backward congestion notification configuration 52 * @DCB_CMD_SBCN: get backward congestion notification configration. 53 */ 54enum dcbnl_commands { 55 DCB_CMD_UNDEFINED, 56 57 DCB_CMD_GSTATE, 58 DCB_CMD_SSTATE, 59 60 DCB_CMD_PGTX_GCFG, 61 DCB_CMD_PGTX_SCFG, 62 DCB_CMD_PGRX_GCFG, 63 DCB_CMD_PGRX_SCFG, 64 65 DCB_CMD_PFC_GCFG, 66 DCB_CMD_PFC_SCFG, 67 68 DCB_CMD_SET_ALL, 69 70 DCB_CMD_GPERM_HWADDR, 71 72 DCB_CMD_GCAP, 73 74 DCB_CMD_GNUMTCS, 75 DCB_CMD_SNUMTCS, 76 77 DCB_CMD_PFC_GSTATE, 78 DCB_CMD_PFC_SSTATE, 79 80 DCB_CMD_BCN_GCFG, 81 DCB_CMD_BCN_SCFG, 82 83 __DCB_CMD_ENUM_MAX, 84 DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1, 85}; 86 87/** 88 * enum dcbnl_attrs - DCB top-level netlink attributes 89 * 90 * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors 91 * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING) 92 * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8) 93 * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8) 94 * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED) 95 * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8) 96 * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED) 97 * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8) 98 * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED) 99 * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED) 100 * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED) 101 * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED) 102 */ 103enum dcbnl_attrs { 104 DCB_ATTR_UNDEFINED, 105 106 DCB_ATTR_IFNAME, 107 DCB_ATTR_STATE, 108 DCB_ATTR_PFC_STATE, 109 DCB_ATTR_PFC_CFG, 110 DCB_ATTR_NUM_TC, 111 DCB_ATTR_PG_CFG, 112 DCB_ATTR_SET_ALL, 113 DCB_ATTR_PERM_HWADDR, 114 DCB_ATTR_CAP, 115 DCB_ATTR_NUMTCS, 116 DCB_ATTR_BCN, 117 118 __DCB_ATTR_ENUM_MAX, 119 DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1, 120}; 121 122/** 123 * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs 124 * 125 * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors 126 * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8) 127 * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8) 128 * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8) 129 * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8) 130 * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8) 131 * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8) 132 * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8) 133 * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8) 134 * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined 135 * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG) 136 * 137 */ 138enum dcbnl_pfc_up_attrs { 139 DCB_PFC_UP_ATTR_UNDEFINED, 140 141 DCB_PFC_UP_ATTR_0, 142 DCB_PFC_UP_ATTR_1, 143 DCB_PFC_UP_ATTR_2, 144 DCB_PFC_UP_ATTR_3, 145 DCB_PFC_UP_ATTR_4, 146 DCB_PFC_UP_ATTR_5, 147 DCB_PFC_UP_ATTR_6, 148 DCB_PFC_UP_ATTR_7, 149 DCB_PFC_UP_ATTR_ALL, 150 151 __DCB_PFC_UP_ATTR_ENUM_MAX, 152 DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1, 153}; 154 155/** 156 * enum dcbnl_pg_attrs - DCB Priority Group attributes 157 * 158 * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors 159 * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED) 160 * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED) 161 * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED) 162 * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED) 163 * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED) 164 * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED) 165 * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED) 166 * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED) 167 * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined 168 * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED) 169 * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8) 170 * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8) 171 * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8) 172 * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8) 173 * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8) 174 * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8) 175 * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8) 176 * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8) 177 * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined 178 * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG) 179 * 180 */ 181enum dcbnl_pg_attrs { 182 DCB_PG_ATTR_UNDEFINED, 183 184 DCB_PG_ATTR_TC_0, 185 DCB_PG_ATTR_TC_1, 186 DCB_PG_ATTR_TC_2, 187 DCB_PG_ATTR_TC_3, 188 DCB_PG_ATTR_TC_4, 189 DCB_PG_ATTR_TC_5, 190 DCB_PG_ATTR_TC_6, 191 DCB_PG_ATTR_TC_7, 192 DCB_PG_ATTR_TC_MAX, 193 DCB_PG_ATTR_TC_ALL, 194 195 DCB_PG_ATTR_BW_ID_0, 196 DCB_PG_ATTR_BW_ID_1, 197 DCB_PG_ATTR_BW_ID_2, 198 DCB_PG_ATTR_BW_ID_3, 199 DCB_PG_ATTR_BW_ID_4, 200 DCB_PG_ATTR_BW_ID_5, 201 DCB_PG_ATTR_BW_ID_6, 202 DCB_PG_ATTR_BW_ID_7, 203 DCB_PG_ATTR_BW_ID_MAX, 204 DCB_PG_ATTR_BW_ID_ALL, 205 206 __DCB_PG_ATTR_ENUM_MAX, 207 DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1, 208}; 209 210/** 211 * enum dcbnl_tc_attrs - DCB Traffic Class attributes 212 * 213 * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors 214 * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to 215 * Valid values are: 0-7 216 * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map 217 * Some devices may not support changing the 218 * user priority map of a TC. 219 * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting 220 * 0 - none 221 * 1 - group strict 222 * 2 - link strict 223 * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and 224 * not configured to use link strict priority, 225 * this is the percentage of bandwidth of the 226 * priority group this traffic class belongs to 227 * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters 228 * 229 */ 230enum dcbnl_tc_attrs { 231 DCB_TC_ATTR_PARAM_UNDEFINED, 232 233 DCB_TC_ATTR_PARAM_PGID, 234 DCB_TC_ATTR_PARAM_UP_MAPPING, 235 DCB_TC_ATTR_PARAM_STRICT_PRIO, 236 DCB_TC_ATTR_PARAM_BW_PCT, 237 DCB_TC_ATTR_PARAM_ALL, 238 239 __DCB_TC_ATTR_PARAM_ENUM_MAX, 240 DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1, 241}; 242 243/** 244 * enum dcbnl_cap_attrs - DCB Capability attributes 245 * 246 * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors 247 * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters 248 * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups 249 * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control 250 * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to 251 * traffic class mapping 252 * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a 253 * number of traffic classes the device 254 * can be configured to use for Priority Groups 255 * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a 256 * number of traffic classes the device can be 257 * configured to use for Priority Flow Control 258 * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority 259 * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion 260 * Notification 261 */ 262enum dcbnl_cap_attrs { 263 DCB_CAP_ATTR_UNDEFINED, 264 DCB_CAP_ATTR_ALL, 265 DCB_CAP_ATTR_PG, 266 DCB_CAP_ATTR_PFC, 267 DCB_CAP_ATTR_UP2TC, 268 DCB_CAP_ATTR_PG_TCS, 269 DCB_CAP_ATTR_PFC_TCS, 270 DCB_CAP_ATTR_GSP, 271 DCB_CAP_ATTR_BCN, 272 273 __DCB_CAP_ATTR_ENUM_MAX, 274 DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1, 275}; 276 277/** 278 * enum dcbnl_numtcs_attrs - number of traffic classes 279 * 280 * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors 281 * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes 282 * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for 283 * priority groups 284 * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can 285 * support priority flow control 286 */ 287enum dcbnl_numtcs_attrs { 288 DCB_NUMTCS_ATTR_UNDEFINED, 289 DCB_NUMTCS_ATTR_ALL, 290 DCB_NUMTCS_ATTR_PG, 291 DCB_NUMTCS_ATTR_PFC, 292 293 __DCB_NUMTCS_ATTR_ENUM_MAX, 294 DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1, 295}; 296 297enum dcbnl_bcn_attrs{ 298 DCB_BCN_ATTR_UNDEFINED = 0, 299 300 DCB_BCN_ATTR_RP_0, 301 DCB_BCN_ATTR_RP_1, 302 DCB_BCN_ATTR_RP_2, 303 DCB_BCN_ATTR_RP_3, 304 DCB_BCN_ATTR_RP_4, 305 DCB_BCN_ATTR_RP_5, 306 DCB_BCN_ATTR_RP_6, 307 DCB_BCN_ATTR_RP_7, 308 DCB_BCN_ATTR_RP_ALL, 309 310 DCB_BCN_ATTR_BCNA_0, 311 DCB_BCN_ATTR_BCNA_1, 312 DCB_BCN_ATTR_ALPHA, 313 DCB_BCN_ATTR_BETA, 314 DCB_BCN_ATTR_GD, 315 DCB_BCN_ATTR_GI, 316 DCB_BCN_ATTR_TMAX, 317 DCB_BCN_ATTR_TD, 318 DCB_BCN_ATTR_RMIN, 319 DCB_BCN_ATTR_W, 320 DCB_BCN_ATTR_RD, 321 DCB_BCN_ATTR_RU, 322 DCB_BCN_ATTR_WRTT, 323 DCB_BCN_ATTR_RI, 324 DCB_BCN_ATTR_C, 325 DCB_BCN_ATTR_ALL, 326 327 __DCB_BCN_ATTR_ENUM_MAX, 328 DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1, 329}; 330 331/** 332 * enum dcb_general_attr_values - general DCB attribute values 333 * 334 * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported 335 * 336 */ 337enum dcb_general_attr_values { 338 DCB_ATTR_VALUE_UNDEFINED = 0xff 339}; 340 341 342#endif /* __LINUX_DCBNL_H__ */ 343