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   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
  27 struct 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  */
  54 enum 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  */
 103 enum 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  */
 138 enum 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  */
 181 enum 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  */
 230 enum 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  */
 262 enum 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  */
 287 enum 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
 297 enum 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  */
 337 enum dcb_general_attr_values {
 338         DCB_ATTR_VALUE_UNDEFINED = 0xff
 339 };
 340
 341
 342 #endif /* __LINUX_DCBNL_H__ */