include/linux/dcbnl.h

   1 /*
   2  * Copyright (c) 2008-2011, 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 /* IEEE 802.1Qaz std supported values */
  26 #define IEEE_8021QAZ_MAX_TCS    8
  27
  28 #define IEEE_8021QAZ_TSA_STRICT         0
  29 #define IEEE_8021QAZ_TSA_CB_SHAPER      1
  30 #define IEEE_8021QAZ_TSA_ETS            2
  31 #define IEEE_8021QAZ_TSA_VENDOR         255
  32
  33 /* This structure contains the IEEE 802.1Qaz ETS managed object
  34  *
  35  * @willing: willing bit in ETS configuration TLV
  36  * @ets_cap: indicates supported capacity of ets feature
  37  * @cbs: credit based shaper ets algorithm supported
  38  * @tc_tx_bw: tc tx bandwidth indexed by traffic class
  39  * @tc_rx_bw: tc rx bandwidth indexed by traffic class
  40  * @tc_tsa: TSA Assignment table, indexed by traffic class
  41  * @prio_tc: priority assignment table mapping 8021Qp to traffic class
  42  * @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV
  43  * @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV
  44  * @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV
  45  *
  46  * Recommended values are used to set fields in the ETS recommendation TLV
  47  * with hardware offloaded LLDP.
  48  *
  49  * ----
  50  *  TSA Assignment 8 bit identifiers
  51  *      0       strict priority
  52  *      1       credit-based shaper
  53  *      2       enhanced transmission selection
  54  *      3-254   reserved
  55  *      255     vendor specific
  56  */
  57 struct ieee_ets {
  58         __u8    willing;
  59         __u8    ets_cap;
  60         __u8    cbs;
  61         __u8    tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
  62         __u8    tc_rx_bw[IEEE_8021QAZ_MAX_TCS];
  63         __u8    tc_tsa[IEEE_8021QAZ_MAX_TCS];
  64         __u8    prio_tc[IEEE_8021QAZ_MAX_TCS];
  65         __u8    tc_reco_bw[IEEE_8021QAZ_MAX_TCS];
  66         __u8    tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];
  67         __u8    reco_prio_tc[IEEE_8021QAZ_MAX_TCS];
  68 };
  69
  70 /* This structure contains the IEEE 802.1Qaz PFC managed object
  71  *
  72  * @pfc_cap: Indicates the number of traffic classes on the local device
  73  *           that may simultaneously have PFC enabled.
  74  * @pfc_en: bitmap indicating pfc enabled traffic classes
  75  * @mbc: enable macsec bypass capability
  76  * @delay: the allowance made for a round-trip propagation delay of the
  77  *         link in bits.
  78  * @requests: count of the sent pfc frames
  79  * @indications: count of the received pfc frames
  80  */
  81 struct ieee_pfc {
  82         __u8    pfc_cap;
  83         __u8    pfc_en;
  84         __u8    mbc;
  85         __u16   delay;
  86         __u64   requests[IEEE_8021QAZ_MAX_TCS];
  87         __u64   indications[IEEE_8021QAZ_MAX_TCS];
  88 };
  89
  90 /* CEE DCBX std supported values */
  91 #define CEE_DCBX_MAX_PGS        8
  92 #define CEE_DCBX_MAX_PRIO       8
  93
  94 /**
  95  * struct cee_pg - CEE Priority-Group managed object
  96  *
  97  * @willing: willing bit in the PG tlv
  98  * @error: error bit in the PG tlv
  99  * @pg_en: enable bit of the PG feature
 100  * @tcs_supported: number of traffic classes supported
 101  * @pg_bw: bandwidth percentage for each priority group
 102  * @prio_pg: priority to PG mapping indexed by priority
 103  */
 104 struct cee_pg {
 105         __u8    willing;
 106         __u8    error;
 107         __u8    pg_en;
 108         __u8    tcs_supported;
 109         __u8    pg_bw[CEE_DCBX_MAX_PGS];
 110         __u8    prio_pg[CEE_DCBX_MAX_PGS];
 111 };
 112
 113 /**
 114  * struct cee_pfc - CEE PFC managed object
 115  *
 116  * @willing: willing bit in the PFC tlv
 117  * @error: error bit in the PFC tlv
 118  * @pfc_en: bitmap indicating pfc enabled traffic classes
 119  * @tcs_supported: number of traffic classes supported
 120  */
 121 struct cee_pfc {
 122         __u8    willing;
 123         __u8    error;
 124         __u8    pfc_en;
 125         __u8    tcs_supported;
 126 };
 127
 128 /* IEEE 802.1Qaz std supported values */
 129 #define IEEE_8021QAZ_APP_SEL_ETHERTYPE  1
 130 #define IEEE_8021QAZ_APP_SEL_STREAM     2
 131 #define IEEE_8021QAZ_APP_SEL_DGRAM      3
 132 #define IEEE_8021QAZ_APP_SEL_ANY        4
 133
 134 /* This structure contains the IEEE 802.1Qaz APP managed object. This
 135  * object is also used for the CEE std as well. There is no difference
 136  * between the objects.
 137  *
 138  * @selector: protocol identifier type
 139  * @protocol: protocol of type indicated
 140  * @priority: 3-bit unsigned integer indicating priority
 141  *
 142  * ----
 143  *  Selector field values
 144  *      0       Reserved
 145  *      1       Ethertype
 146  *      2       Well known port number over TCP or SCTP
 147  *      3       Well known port number over UDP or DCCP
 148  *      4       Well known port number over TCP, SCTP, UDP, or DCCP
 149  *      5-7     Reserved
 150  */
 151 struct dcb_app {
 152         __u8    selector;
 153         __u8    priority;
 154         __u16   protocol;
 155 };
 156
 157 /**
 158  * struct dcb_peer_app_info - APP feature information sent by the peer
 159  *
 160  * @willing: willing bit in the peer APP tlv
 161  * @error: error bit in the peer APP tlv
 162  *
 163  * In addition to this information the full peer APP tlv also contains
 164  * a table of 'app_count' APP objects defined above.
 165  */
 166 struct dcb_peer_app_info {
 167         __u8    willing;
 168         __u8    error;
 169 };
 170
 171 struct dcbmsg {
 172         __u8               dcb_family;
 173         __u8               cmd;
 174         __u16              dcb_pad;
 175 };
 176
 177 /**
 178  * enum dcbnl_commands - supported DCB commands
 179  *
 180  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
 181  * @DCB_CMD_GSTATE: request the state of DCB in the device
 182  * @DCB_CMD_SSTATE: set the state of DCB in the device
 183  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
 184  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
 185  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
 186  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
 187  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
 188  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
 189  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
 190  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
 191  *                        device.  Only useful when using bonding.
 192  * @DCB_CMD_GCAP: request the DCB capabilities of the device
 193  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
 194  * @DCB_CMD_SNUMTCS: set the number of traffic classes
 195  * @DCB_CMD_GBCN: set backward congestion notification configuration
 196  * @DCB_CMD_SBCN: get backward congestion notification configration.
 197  * @DCB_CMD_GAPP: get application protocol configuration
 198  * @DCB_CMD_SAPP: set application protocol configuration
 199  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
 200  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
 201  * @DCB_CMD_GDCBX: get DCBX engine configuration
 202  * @DCB_CMD_SDCBX: set DCBX engine configuration
 203  * @DCB_CMD_GFEATCFG: get DCBX features flags
 204  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
 205  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
 206  */
 207 enum dcbnl_commands {
 208         DCB_CMD_UNDEFINED,
 209
 210         DCB_CMD_GSTATE,
 211         DCB_CMD_SSTATE,
 212
 213         DCB_CMD_PGTX_GCFG,
 214         DCB_CMD_PGTX_SCFG,
 215         DCB_CMD_PGRX_GCFG,
 216         DCB_CMD_PGRX_SCFG,
 217
 218         DCB_CMD_PFC_GCFG,
 219         DCB_CMD_PFC_SCFG,
 220
 221         DCB_CMD_SET_ALL,
 222
 223         DCB_CMD_GPERM_HWADDR,
 224
 225         DCB_CMD_GCAP,
 226
 227         DCB_CMD_GNUMTCS,
 228         DCB_CMD_SNUMTCS,
 229
 230         DCB_CMD_PFC_GSTATE,
 231         DCB_CMD_PFC_SSTATE,
 232
 233         DCB_CMD_BCN_GCFG,
 234         DCB_CMD_BCN_SCFG,
 235
 236         DCB_CMD_GAPP,
 237         DCB_CMD_SAPP,
 238
 239         DCB_CMD_IEEE_SET,
 240         DCB_CMD_IEEE_GET,
 241
 242         DCB_CMD_GDCBX,
 243         DCB_CMD_SDCBX,
 244
 245         DCB_CMD_GFEATCFG,
 246         DCB_CMD_SFEATCFG,
 247
 248         DCB_CMD_CEE_GET,
 249
 250         __DCB_CMD_ENUM_MAX,
 251         DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
 252 };
 253
 254 /**
 255  * enum dcbnl_attrs - DCB top-level netlink attributes
 256  *
 257  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
 258  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
 259  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
 260  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
 261  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
 262  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
 263  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
 264  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
 265  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
 266  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
 267  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
 268  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
 269  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
 270  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
 271  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
 272  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
 273  */
 274 enum dcbnl_attrs {
 275         DCB_ATTR_UNDEFINED,
 276
 277         DCB_ATTR_IFNAME,
 278         DCB_ATTR_STATE,
 279         DCB_ATTR_PFC_STATE,
 280         DCB_ATTR_PFC_CFG,
 281         DCB_ATTR_NUM_TC,
 282         DCB_ATTR_PG_CFG,
 283         DCB_ATTR_SET_ALL,
 284         DCB_ATTR_PERM_HWADDR,
 285         DCB_ATTR_CAP,
 286         DCB_ATTR_NUMTCS,
 287         DCB_ATTR_BCN,
 288         DCB_ATTR_APP,
 289
 290         /* IEEE std attributes */
 291         DCB_ATTR_IEEE,
 292
 293         DCB_ATTR_DCBX,
 294         DCB_ATTR_FEATCFG,
 295
 296         /* CEE nested attributes */
 297         DCB_ATTR_CEE,
 298
 299         __DCB_ATTR_ENUM_MAX,
 300         DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
 301 };
 302
 303 /**
 304  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
 305  *
 306  * @DCB_ATTR_IEEE_UNSPEC: unspecified
 307  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
 308  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
 309  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
 310  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
 311  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
 312  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
 313  */
 314 enum ieee_attrs {
 315         DCB_ATTR_IEEE_UNSPEC,
 316         DCB_ATTR_IEEE_ETS,
 317         DCB_ATTR_IEEE_PFC,
 318         DCB_ATTR_IEEE_APP_TABLE,
 319         DCB_ATTR_IEEE_PEER_ETS,
 320         DCB_ATTR_IEEE_PEER_PFC,
 321         DCB_ATTR_IEEE_PEER_APP,
 322         __DCB_ATTR_IEEE_MAX
 323 };
 324 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
 325
 326 enum ieee_attrs_app {
 327         DCB_ATTR_IEEE_APP_UNSPEC,
 328         DCB_ATTR_IEEE_APP,
 329         __DCB_ATTR_IEEE_APP_MAX
 330 };
 331 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
 332
 333 /**
 334  * enum cee_attrs - CEE DCBX get attributes
 335  *
 336  * @DCB_ATTR_CEE_UNSPEC: unspecified
 337  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
 338  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
 339  * @DCB_ATTR_CEE_PEER_APP: peer APP tlv - get only
 340  */
 341 enum cee_attrs {
 342         DCB_ATTR_CEE_UNSPEC,
 343         DCB_ATTR_CEE_PEER_PG,
 344         DCB_ATTR_CEE_PEER_PFC,
 345         DCB_ATTR_CEE_PEER_APP_TABLE,
 346         __DCB_ATTR_CEE_MAX
 347 };
 348 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
 349
 350 enum peer_app_attr {
 351         DCB_ATTR_CEE_PEER_APP_UNSPEC,
 352         DCB_ATTR_CEE_PEER_APP_INFO,
 353         DCB_ATTR_CEE_PEER_APP,
 354         __DCB_ATTR_CEE_PEER_APP_MAX
 355 };
 356 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
 357
 358 /**
 359  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
 360  *
 361  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
 362  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
 363  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
 364  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
 365  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
 366  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
 367  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
 368  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
 369  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
 370  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
 371  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
 372  *
 373  */
 374 enum dcbnl_pfc_up_attrs {
 375         DCB_PFC_UP_ATTR_UNDEFINED,
 376
 377         DCB_PFC_UP_ATTR_0,
 378         DCB_PFC_UP_ATTR_1,
 379         DCB_PFC_UP_ATTR_2,
 380         DCB_PFC_UP_ATTR_3,
 381         DCB_PFC_UP_ATTR_4,
 382         DCB_PFC_UP_ATTR_5,
 383         DCB_PFC_UP_ATTR_6,
 384         DCB_PFC_UP_ATTR_7,
 385         DCB_PFC_UP_ATTR_ALL,
 386
 387         __DCB_PFC_UP_ATTR_ENUM_MAX,
 388         DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
 389 };
 390
 391 /**
 392  * enum dcbnl_pg_attrs - DCB Priority Group attributes
 393  *
 394  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
 395  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
 396  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
 397  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
 398  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
 399  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
 400  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
 401  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
 402  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
 403  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
 404  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
 405  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
 406  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
 407  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
 408  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
 409  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
 410  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
 411  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
 412  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
 413  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
 414  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
 415  *
 416  */
 417 enum dcbnl_pg_attrs {
 418         DCB_PG_ATTR_UNDEFINED,
 419
 420         DCB_PG_ATTR_TC_0,
 421         DCB_PG_ATTR_TC_1,
 422         DCB_PG_ATTR_TC_2,
 423         DCB_PG_ATTR_TC_3,
 424         DCB_PG_ATTR_TC_4,
 425         DCB_PG_ATTR_TC_5,
 426         DCB_PG_ATTR_TC_6,
 427         DCB_PG_ATTR_TC_7,
 428         DCB_PG_ATTR_TC_MAX,
 429         DCB_PG_ATTR_TC_ALL,
 430
 431         DCB_PG_ATTR_BW_ID_0,
 432         DCB_PG_ATTR_BW_ID_1,
 433         DCB_PG_ATTR_BW_ID_2,
 434         DCB_PG_ATTR_BW_ID_3,
 435         DCB_PG_ATTR_BW_ID_4,
 436         DCB_PG_ATTR_BW_ID_5,
 437         DCB_PG_ATTR_BW_ID_6,
 438         DCB_PG_ATTR_BW_ID_7,
 439         DCB_PG_ATTR_BW_ID_MAX,
 440         DCB_PG_ATTR_BW_ID_ALL,
 441
 442         __DCB_PG_ATTR_ENUM_MAX,
 443         DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
 444 };
 445
 446 /**
 447  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
 448  *
 449  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
 450  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
 451  *                          Valid values are:  0-7
 452  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
 453  *                                Some devices may not support changing the
 454  *                                user priority map of a TC.
 455  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
 456  *                                 0 - none
 457  *                                 1 - group strict
 458  *                                 2 - link strict
 459  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
 460  *                            not configured to use link strict priority,
 461  *                            this is the percentage of bandwidth of the
 462  *                            priority group this traffic class belongs to
 463  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
 464  *
 465  */
 466 enum dcbnl_tc_attrs {
 467         DCB_TC_ATTR_PARAM_UNDEFINED,
 468
 469         DCB_TC_ATTR_PARAM_PGID,
 470         DCB_TC_ATTR_PARAM_UP_MAPPING,
 471         DCB_TC_ATTR_PARAM_STRICT_PRIO,
 472         DCB_TC_ATTR_PARAM_BW_PCT,
 473         DCB_TC_ATTR_PARAM_ALL,
 474
 475         __DCB_TC_ATTR_PARAM_ENUM_MAX,
 476         DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
 477 };
 478
 479 /**
 480  * enum dcbnl_cap_attrs - DCB Capability attributes
 481  *
 482  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
 483  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
 484  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
 485  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
 486  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
 487  *                               traffic class mapping
 488  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
 489  *                                number of traffic classes the device
 490  *                                can be configured to use for Priority Groups
 491  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
 492  *                                 number of traffic classes the device can be
 493  *                                 configured to use for Priority Flow Control
 494  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
 495  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
 496  *                             Notification
 497  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
 498  *
 499  */
 500 enum dcbnl_cap_attrs {
 501         DCB_CAP_ATTR_UNDEFINED,
 502         DCB_CAP_ATTR_ALL,
 503         DCB_CAP_ATTR_PG,
 504         DCB_CAP_ATTR_PFC,
 505         DCB_CAP_ATTR_UP2TC,
 506         DCB_CAP_ATTR_PG_TCS,
 507         DCB_CAP_ATTR_PFC_TCS,
 508         DCB_CAP_ATTR_GSP,
 509         DCB_CAP_ATTR_BCN,
 510         DCB_CAP_ATTR_DCBX,
 511
 512         __DCB_CAP_ATTR_ENUM_MAX,
 513         DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
 514 };
 515
 516 /**
 517  * DCBX capability flags
 518  *
 519  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
 520  *                     'set' routines are used to configure the device with
 521  *                     the negotiated parameters
 522  *
 523  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
 524  *                            by another entity
 525  *                            'get' routines are used to retrieve the
 526  *                            negotiated parameters
 527  *                            'set' routines can be used to set the initial
 528  *                            negotiation configuration
 529  *
 530  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
 531  *                        supports the CEE protocol flavor
 532  *
 533  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
 534  *                         supports the IEEE protocol flavor
 535  *
 536  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
 537  *                       supports static configuration (i.e no actual
 538  *                       negotiation is performed negotiated parameters equal
 539  *                       the initial configuration)
 540  *
 541  */
 542 #define DCB_CAP_DCBX_HOST               0x01
 543 #define DCB_CAP_DCBX_LLD_MANAGED        0x02
 544 #define DCB_CAP_DCBX_VER_CEE            0x04
 545 #define DCB_CAP_DCBX_VER_IEEE           0x08
 546 #define DCB_CAP_DCBX_STATIC             0x10
 547
 548 /**
 549  * enum dcbnl_numtcs_attrs - number of traffic classes
 550  *
 551  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
 552  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
 553  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
 554  *                               priority groups
 555  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
 556  *                                support priority flow control
 557  */
 558 enum dcbnl_numtcs_attrs {
 559         DCB_NUMTCS_ATTR_UNDEFINED,
 560         DCB_NUMTCS_ATTR_ALL,
 561         DCB_NUMTCS_ATTR_PG,
 562         DCB_NUMTCS_ATTR_PFC,
 563
 564         __DCB_NUMTCS_ATTR_ENUM_MAX,
 565         DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
 566 };
 567
 568 enum dcbnl_bcn_attrs{
 569         DCB_BCN_ATTR_UNDEFINED = 0,
 570
 571         DCB_BCN_ATTR_RP_0,
 572         DCB_BCN_ATTR_RP_1,
 573         DCB_BCN_ATTR_RP_2,
 574         DCB_BCN_ATTR_RP_3,
 575         DCB_BCN_ATTR_RP_4,
 576         DCB_BCN_ATTR_RP_5,
 577         DCB_BCN_ATTR_RP_6,
 578         DCB_BCN_ATTR_RP_7,
 579         DCB_BCN_ATTR_RP_ALL,
 580
 581         DCB_BCN_ATTR_BCNA_0,
 582         DCB_BCN_ATTR_BCNA_1,
 583         DCB_BCN_ATTR_ALPHA,
 584         DCB_BCN_ATTR_BETA,
 585         DCB_BCN_ATTR_GD,
 586         DCB_BCN_ATTR_GI,
 587         DCB_BCN_ATTR_TMAX,
 588         DCB_BCN_ATTR_TD,
 589         DCB_BCN_ATTR_RMIN,
 590         DCB_BCN_ATTR_W,
 591         DCB_BCN_ATTR_RD,
 592         DCB_BCN_ATTR_RU,
 593         DCB_BCN_ATTR_WRTT,
 594         DCB_BCN_ATTR_RI,
 595         DCB_BCN_ATTR_C,
 596         DCB_BCN_ATTR_ALL,
 597
 598         __DCB_BCN_ATTR_ENUM_MAX,
 599         DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
 600 };
 601
 602 /**
 603  * enum dcb_general_attr_values - general DCB attribute values
 604  *
 605  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
 606  *
 607  */
 608 enum dcb_general_attr_values {
 609         DCB_ATTR_VALUE_UNDEFINED = 0xff
 610 };
 611
 612 #define DCB_APP_IDTYPE_ETHTYPE  0x00
 613 #define DCB_APP_IDTYPE_PORTNUM  0x01
 614 enum dcbnl_app_attrs {
 615         DCB_APP_ATTR_UNDEFINED,
 616
 617         DCB_APP_ATTR_IDTYPE,
 618         DCB_APP_ATTR_ID,
 619         DCB_APP_ATTR_PRIORITY,
 620
 621         __DCB_APP_ATTR_ENUM_MAX,
 622         DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
 623 };
 624
 625 /**
 626  * enum dcbnl_featcfg_attrs - features conifiguration flags
 627  *
 628  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
 629  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
 630  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
 631  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
 632  *                                 flow control
 633  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
 634  *
 635  */
 636 #define DCB_FEATCFG_ERROR       0x01    /* error in feature resolution */
 637 #define DCB_FEATCFG_ENABLE      0x02    /* enable feature */
 638 #define DCB_FEATCFG_WILLING     0x04    /* feature is willing */
 639 #define DCB_FEATCFG_ADVERTISE   0x08    /* advertise feature */
 640 enum dcbnl_featcfg_attrs {
 641         DCB_FEATCFG_ATTR_UNDEFINED,
 642         DCB_FEATCFG_ATTR_ALL,
 643         DCB_FEATCFG_ATTR_PG,
 644         DCB_FEATCFG_ATTR_PFC,
 645         DCB_FEATCFG_ATTR_APP,
 646
 647         __DCB_FEATCFG_ATTR_ENUM_MAX,
 648         DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
 649 };
 650
 651 #endif /* __LINUX_DCBNL_H__ */