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