include/uapi/linux/dcbnl.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * Copyright (c) 2008-2011, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  16  * Place - Suite 330, Boston, MA 02111-1307 USA.
  17  *
  18  * Author: Lucy Liu <lucy.liu@intel.com>
  19  */
  20
  21 #ifndef __LINUX_DCBNL_H__
  22 #define __LINUX_DCBNL_H__
  23
  24 #include <linux/types.h>
  25
  26 /* IEEE 802.1Qaz std supported values */
  27 #define IEEE_8021QAZ_MAX_TCS    8
  28
  29 #define IEEE_8021QAZ_TSA_STRICT         0
  30 #define IEEE_8021QAZ_TSA_CB_SHAPER      1
  31 #define IEEE_8021QAZ_TSA_ETS            2
  32 #define IEEE_8021QAZ_TSA_VENDOR         255
  33
  34 /* This structure contains the IEEE 802.1Qaz ETS managed object
  35  *
  36  * @willing: willing bit in ETS configuration TLV
  37  * @ets_cap: indicates supported capacity of ets feature
  38  * @cbs: credit based shaper ets algorithm supported
  39  * @tc_tx_bw: tc tx bandwidth indexed by traffic class
  40  * @tc_rx_bw: tc rx bandwidth indexed by traffic class
  41  * @tc_tsa: TSA Assignment table, indexed by traffic class
  42  * @prio_tc: priority assignment table mapping 8021Qp to traffic class
  43  * @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV
  44  * @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV
  45  * @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV
  46  *
  47  * Recommended values are used to set fields in the ETS recommendation TLV
  48  * with hardware offloaded LLDP.
  49  *
  50  * ----
  51  *  TSA Assignment 8 bit identifiers
  52  *      0       strict priority
  53  *      1       credit-based shaper
  54  *      2       enhanced transmission selection
  55  *      3-254   reserved
  56  *      255     vendor specific
  57  */
  58 struct ieee_ets {
  59         __u8    willing;
  60         __u8    ets_cap;
  61         __u8    cbs;
  62         __u8    tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
  63         __u8    tc_rx_bw[IEEE_8021QAZ_MAX_TCS];
  64         __u8    tc_tsa[IEEE_8021QAZ_MAX_TCS];
  65         __u8    prio_tc[IEEE_8021QAZ_MAX_TCS];
  66         __u8    tc_reco_bw[IEEE_8021QAZ_MAX_TCS];
  67         __u8    tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];
  68         __u8    reco_prio_tc[IEEE_8021QAZ_MAX_TCS];
  69 };
  70
  71 /* This structure contains rate limit extension to the IEEE 802.1Qaz ETS
  72  * managed object.
  73  * Values are 64 bits long and specified in Kbps to enable usage over both
  74  * slow and very fast networks.
  75  *
  76  * @tc_maxrate: maximal tc tx bandwidth indexed by traffic class
  77  */
  78 struct ieee_maxrate {
  79         __u64   tc_maxrate[IEEE_8021QAZ_MAX_TCS];
  80 };
  81
  82 enum dcbnl_cndd_states {
  83         DCB_CNDD_RESET = 0,
  84         DCB_CNDD_EDGE,
  85         DCB_CNDD_INTERIOR,
  86         DCB_CNDD_INTERIOR_READY,
  87 };
  88
  89 /* This structure contains the IEEE 802.1Qau QCN managed object.
  90  *
  91  *@rpg_enable: enable QCN RP
  92  *@rppp_max_rps: maximum number of RPs allowed for this CNPV on this port
  93  *@rpg_time_reset: time between rate increases if no CNMs received.
  94  *                 given in u-seconds
  95  *@rpg_byte_reset: transmitted data between rate increases if no CNMs received.
  96  *                 given in Bytes
  97  *@rpg_threshold: The number of times rpByteStage or rpTimeStage can count
  98  *                 before RP rate control state machine advances states
  99  *@rpg_max_rate: the maxinun rate, in Mbits per second,
 100  *               at which an RP can transmit
 101  *@rpg_ai_rate: The rate, in Mbits per second,
 102  *              used to increase rpTargetRate in the RPR_ACTIVE_INCREASE
 103  *@rpg_hai_rate: The rate, in Mbits per second,
 104  *               used to increase rpTargetRate in the RPR_HYPER_INCREASE state
 105  *@rpg_gd: Upon CNM receive, flow rate is limited to (Fb/Gd)*CurrentRate.
 106  *         rpgGd is given as log2(Gd), where Gd may only be powers of 2
 107  *@rpg_min_dec_fac: The minimum factor by which the current transmit rate
 108  *                  can be changed by reception of a CNM.
 109  *                  value is given as percentage (1-100)
 110  *@rpg_min_rate: The minimum value, in bits per second, for rate to limit
 111  *@cndd_state_machine: The state of the congestion notification domain
 112  *                     defense state machine, as defined by IEEE 802.3Qau
 113  *                     section 32.1.1. In the interior ready state,
 114  *                     the QCN capable hardware may add CN-TAG TLV to the
 115  *                     outgoing traffic, to specifically identify outgoing
 116  *                     flows.
 117  */
 118
 119 struct ieee_qcn {
 120         __u8 rpg_enable[IEEE_8021QAZ_MAX_TCS];
 121         __u32 rppp_max_rps[IEEE_8021QAZ_MAX_TCS];
 122         __u32 rpg_time_reset[IEEE_8021QAZ_MAX_TCS];
 123         __u32 rpg_byte_reset[IEEE_8021QAZ_MAX_TCS];
 124         __u32 rpg_threshold[IEEE_8021QAZ_MAX_TCS];
 125         __u32 rpg_max_rate[IEEE_8021QAZ_MAX_TCS];
 126         __u32 rpg_ai_rate[IEEE_8021QAZ_MAX_TCS];
 127         __u32 rpg_hai_rate[IEEE_8021QAZ_MAX_TCS];
 128         __u32 rpg_gd[IEEE_8021QAZ_MAX_TCS];
 129         __u32 rpg_min_dec_fac[IEEE_8021QAZ_MAX_TCS];
 130         __u32 rpg_min_rate[IEEE_8021QAZ_MAX_TCS];
 131         __u32 cndd_state_machine[IEEE_8021QAZ_MAX_TCS];
 132 };
 133
 134 /* This structure contains the IEEE 802.1Qau QCN statistics.
 135  *
 136  *@rppp_rp_centiseconds: the number of RP-centiseconds accumulated
 137  *                       by RPs at this priority level on this Port
 138  *@rppp_created_rps: number of active RPs(flows) that react to CNMs
 139  */
 140
 141 struct ieee_qcn_stats {
 142         __u64 rppp_rp_centiseconds[IEEE_8021QAZ_MAX_TCS];
 143         __u32 rppp_created_rps[IEEE_8021QAZ_MAX_TCS];
 144 };
 145
 146 /* This structure contains the IEEE 802.1Qaz PFC managed object
 147  *
 148  * @pfc_cap: Indicates the number of traffic classes on the local device
 149  *           that may simultaneously have PFC enabled.
 150  * @pfc_en: bitmap indicating pfc enabled traffic classes
 151  * @mbc: enable macsec bypass capability
 152  * @delay: the allowance made for a round-trip propagation delay of the
 153  *         link in bits.
 154  * @requests: count of the sent pfc frames
 155  * @indications: count of the received pfc frames
 156  */
 157 struct ieee_pfc {
 158         __u8    pfc_cap;
 159         __u8    pfc_en;
 160         __u8    mbc;
 161         __u16   delay;
 162         __u64   requests[IEEE_8021QAZ_MAX_TCS];
 163         __u64   indications[IEEE_8021QAZ_MAX_TCS];
 164 };
 165
 166 #define IEEE_8021Q_MAX_PRIORITIES 8
 167 #define DCBX_MAX_BUFFERS  8
 168 struct dcbnl_buffer {
 169         /* priority to buffer mapping */
 170         __u8    prio2buffer[IEEE_8021Q_MAX_PRIORITIES];
 171         /* buffer size in Bytes */
 172         __u32   buffer_size[DCBX_MAX_BUFFERS];
 173         __u32   total_size;
 174 };
 175
 176 /* CEE DCBX std supported values */
 177 #define CEE_DCBX_MAX_PGS        8
 178 #define CEE_DCBX_MAX_PRIO       8
 179
 180 /**
 181  * struct cee_pg - CEE Priority-Group managed object
 182  *
 183  * @willing: willing bit in the PG tlv
 184  * @error: error bit in the PG tlv
 185  * @pg_en: enable bit of the PG feature
 186  * @tcs_supported: number of traffic classes supported
 187  * @pg_bw: bandwidth percentage for each priority group
 188  * @prio_pg: priority to PG mapping indexed by priority
 189  */
 190 struct cee_pg {
 191         __u8    willing;
 192         __u8    error;
 193         __u8    pg_en;
 194         __u8    tcs_supported;
 195         __u8    pg_bw[CEE_DCBX_MAX_PGS];
 196         __u8    prio_pg[CEE_DCBX_MAX_PGS];
 197 };
 198
 199 /**
 200  * struct cee_pfc - CEE PFC managed object
 201  *
 202  * @willing: willing bit in the PFC tlv
 203  * @error: error bit in the PFC tlv
 204  * @pfc_en: bitmap indicating pfc enabled traffic classes
 205  * @tcs_supported: number of traffic classes supported
 206  */
 207 struct cee_pfc {
 208         __u8    willing;
 209         __u8    error;
 210         __u8    pfc_en;
 211         __u8    tcs_supported;
 212 };
 213
 214 /* IEEE 802.1Qaz std supported values */
 215 #define IEEE_8021QAZ_APP_SEL_ETHERTYPE  1
 216 #define IEEE_8021QAZ_APP_SEL_STREAM     2
 217 #define IEEE_8021QAZ_APP_SEL_DGRAM      3
 218 #define IEEE_8021QAZ_APP_SEL_ANY        4
 219 #define IEEE_8021QAZ_APP_SEL_DSCP       5
 220
 221 /* This structure contains the IEEE 802.1Qaz APP managed object. This
 222  * object is also used for the CEE std as well.
 223  *
 224  * @selector: protocol identifier type
 225  * @protocol: protocol of type indicated
 226  * @priority: 3-bit unsigned integer indicating priority for IEEE
 227  *            8-bit 802.1p user priority bitmap for CEE
 228  *
 229  * ----
 230  *  Selector field values for IEEE 802.1Qaz
 231  *      0       Reserved
 232  *      1       Ethertype
 233  *      2       Well known port number over TCP or SCTP
 234  *      3       Well known port number over UDP or DCCP
 235  *      4       Well known port number over TCP, SCTP, UDP, or DCCP
 236  *      5       Differentiated Services Code Point (DSCP) value
 237  *      6-7     Reserved
 238  *
 239  *  Selector field values for CEE
 240  *      0       Ethertype
 241  *      1       Well known port number over TCP or UDP
 242  *      2-3     Reserved
 243  */
 244 struct dcb_app {
 245         __u8    selector;
 246         __u8    priority;
 247         __u16   protocol;
 248 };
 249
 250 /**
 251  * struct dcb_peer_app_info - APP feature information sent by the peer
 252  *
 253  * @willing: willing bit in the peer APP tlv
 254  * @error: error bit in the peer APP tlv
 255  *
 256  * In addition to this information the full peer APP tlv also contains
 257  * a table of 'app_count' APP objects defined above.
 258  */
 259 struct dcb_peer_app_info {
 260         __u8    willing;
 261         __u8    error;
 262 };
 263
 264 struct dcbmsg {
 265         __u8               dcb_family;
 266         __u8               cmd;
 267         __u16              dcb_pad;
 268 };
 269
 270 /**
 271  * enum dcbnl_commands - supported DCB commands
 272  *
 273  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
 274  * @DCB_CMD_GSTATE: request the state of DCB in the device
 275  * @DCB_CMD_SSTATE: set the state of DCB in the device
 276  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
 277  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
 278  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
 279  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
 280  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
 281  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
 282  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
 283  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
 284  *                        device.  Only useful when using bonding.
 285  * @DCB_CMD_GCAP: request the DCB capabilities of the device
 286  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
 287  * @DCB_CMD_SNUMTCS: set the number of traffic classes
 288  * @DCB_CMD_GBCN: set backward congestion notification configuration
 289  * @DCB_CMD_SBCN: get backward congestion notification configuration.
 290  * @DCB_CMD_GAPP: get application protocol configuration
 291  * @DCB_CMD_SAPP: set application protocol configuration
 292  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
 293  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
 294  * @DCB_CMD_GDCBX: get DCBX engine configuration
 295  * @DCB_CMD_SDCBX: set DCBX engine configuration
 296  * @DCB_CMD_GFEATCFG: get DCBX features flags
 297  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
 298  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
 299  * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
 300  */
 301 enum dcbnl_commands {
 302         DCB_CMD_UNDEFINED,
 303
 304         DCB_CMD_GSTATE,
 305         DCB_CMD_SSTATE,
 306
 307         DCB_CMD_PGTX_GCFG,
 308         DCB_CMD_PGTX_SCFG,
 309         DCB_CMD_PGRX_GCFG,
 310         DCB_CMD_PGRX_SCFG,
 311
 312         DCB_CMD_PFC_GCFG,
 313         DCB_CMD_PFC_SCFG,
 314
 315         DCB_CMD_SET_ALL,
 316
 317         DCB_CMD_GPERM_HWADDR,
 318
 319         DCB_CMD_GCAP,
 320
 321         DCB_CMD_GNUMTCS,
 322         DCB_CMD_SNUMTCS,
 323
 324         DCB_CMD_PFC_GSTATE,
 325         DCB_CMD_PFC_SSTATE,
 326
 327         DCB_CMD_BCN_GCFG,
 328         DCB_CMD_BCN_SCFG,
 329
 330         DCB_CMD_GAPP,
 331         DCB_CMD_SAPP,
 332
 333         DCB_CMD_IEEE_SET,
 334         DCB_CMD_IEEE_GET,
 335
 336         DCB_CMD_GDCBX,
 337         DCB_CMD_SDCBX,
 338
 339         DCB_CMD_GFEATCFG,
 340         DCB_CMD_SFEATCFG,
 341
 342         DCB_CMD_CEE_GET,
 343         DCB_CMD_IEEE_DEL,
 344
 345         __DCB_CMD_ENUM_MAX,
 346         DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
 347 };
 348
 349 /**
 350  * enum dcbnl_attrs - DCB top-level netlink attributes
 351  *
 352  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
 353  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
 354  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
 355  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
 356  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
 357  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
 358  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
 359  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
 360  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
 361  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
 362  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
 363  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
 364  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
 365  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
 366  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
 367  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
 368  */
 369 enum dcbnl_attrs {
 370         DCB_ATTR_UNDEFINED,
 371
 372         DCB_ATTR_IFNAME,
 373         DCB_ATTR_STATE,
 374         DCB_ATTR_PFC_STATE,
 375         DCB_ATTR_PFC_CFG,
 376         DCB_ATTR_NUM_TC,
 377         DCB_ATTR_PG_CFG,
 378         DCB_ATTR_SET_ALL,
 379         DCB_ATTR_PERM_HWADDR,
 380         DCB_ATTR_CAP,
 381         DCB_ATTR_NUMTCS,
 382         DCB_ATTR_BCN,
 383         DCB_ATTR_APP,
 384
 385         /* IEEE std attributes */
 386         DCB_ATTR_IEEE,
 387
 388         DCB_ATTR_DCBX,
 389         DCB_ATTR_FEATCFG,
 390
 391         /* CEE nested attributes */
 392         DCB_ATTR_CEE,
 393
 394         __DCB_ATTR_ENUM_MAX,
 395         DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
 396 };
 397
 398 /**
 399  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
 400  *
 401  * @DCB_ATTR_IEEE_UNSPEC: unspecified
 402  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
 403  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
 404  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
 405  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
 406  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
 407  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
 408  */
 409 enum ieee_attrs {
 410         DCB_ATTR_IEEE_UNSPEC,
 411         DCB_ATTR_IEEE_ETS,
 412         DCB_ATTR_IEEE_PFC,
 413         DCB_ATTR_IEEE_APP_TABLE,
 414         DCB_ATTR_IEEE_PEER_ETS,
 415         DCB_ATTR_IEEE_PEER_PFC,
 416         DCB_ATTR_IEEE_PEER_APP,
 417         DCB_ATTR_IEEE_MAXRATE,
 418         DCB_ATTR_IEEE_QCN,
 419         DCB_ATTR_IEEE_QCN_STATS,
 420         DCB_ATTR_DCB_BUFFER,
 421         __DCB_ATTR_IEEE_MAX
 422 };
 423 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
 424
 425 enum ieee_attrs_app {
 426         DCB_ATTR_IEEE_APP_UNSPEC,
 427         DCB_ATTR_IEEE_APP,
 428         __DCB_ATTR_IEEE_APP_MAX
 429 };
 430 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
 431
 432 /**
 433  * enum cee_attrs - CEE DCBX get attributes.
 434  *
 435  * @DCB_ATTR_CEE_UNSPEC: unspecified
 436  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
 437  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
 438  * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
 439  * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
 440  * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
 441  * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
 442  * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
 443  * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
 444  *
 445  * An aggregated collection of the cee std negotiated parameters.
 446  */
 447 enum cee_attrs {
 448         DCB_ATTR_CEE_UNSPEC,
 449         DCB_ATTR_CEE_PEER_PG,
 450         DCB_ATTR_CEE_PEER_PFC,
 451         DCB_ATTR_CEE_PEER_APP_TABLE,
 452         DCB_ATTR_CEE_TX_PG,
 453         DCB_ATTR_CEE_RX_PG,
 454         DCB_ATTR_CEE_PFC,
 455         DCB_ATTR_CEE_APP_TABLE,
 456         DCB_ATTR_CEE_FEAT,
 457         __DCB_ATTR_CEE_MAX
 458 };
 459 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
 460
 461 enum peer_app_attr {
 462         DCB_ATTR_CEE_PEER_APP_UNSPEC,
 463         DCB_ATTR_CEE_PEER_APP_INFO,
 464         DCB_ATTR_CEE_PEER_APP,
 465         __DCB_ATTR_CEE_PEER_APP_MAX
 466 };
 467 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
 468
 469 enum cee_attrs_app {
 470         DCB_ATTR_CEE_APP_UNSPEC,
 471         DCB_ATTR_CEE_APP,
 472         __DCB_ATTR_CEE_APP_MAX
 473 };
 474 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
 475
 476 /**
 477  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
 478  *
 479  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
 480  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
 481  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
 482  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
 483  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
 484  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
 485  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
 486  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
 487  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
 488  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
 489  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
 490  *
 491  */
 492 enum dcbnl_pfc_up_attrs {
 493         DCB_PFC_UP_ATTR_UNDEFINED,
 494
 495         DCB_PFC_UP_ATTR_0,
 496         DCB_PFC_UP_ATTR_1,
 497         DCB_PFC_UP_ATTR_2,
 498         DCB_PFC_UP_ATTR_3,
 499         DCB_PFC_UP_ATTR_4,
 500         DCB_PFC_UP_ATTR_5,
 501         DCB_PFC_UP_ATTR_6,
 502         DCB_PFC_UP_ATTR_7,
 503         DCB_PFC_UP_ATTR_ALL,
 504
 505         __DCB_PFC_UP_ATTR_ENUM_MAX,
 506         DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
 507 };
 508
 509 /**
 510  * enum dcbnl_pg_attrs - DCB Priority Group attributes
 511  *
 512  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
 513  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
 514  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
 515  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
 516  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
 517  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
 518  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
 519  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
 520  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
 521  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
 522  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
 523  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
 524  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
 525  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
 526  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
 527  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
 528  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
 529  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
 530  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
 531  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
 532  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
 533  *
 534  */
 535 enum dcbnl_pg_attrs {
 536         DCB_PG_ATTR_UNDEFINED,
 537
 538         DCB_PG_ATTR_TC_0,
 539         DCB_PG_ATTR_TC_1,
 540         DCB_PG_ATTR_TC_2,
 541         DCB_PG_ATTR_TC_3,
 542         DCB_PG_ATTR_TC_4,
 543         DCB_PG_ATTR_TC_5,
 544         DCB_PG_ATTR_TC_6,
 545         DCB_PG_ATTR_TC_7,
 546         DCB_PG_ATTR_TC_MAX,
 547         DCB_PG_ATTR_TC_ALL,
 548
 549         DCB_PG_ATTR_BW_ID_0,
 550         DCB_PG_ATTR_BW_ID_1,
 551         DCB_PG_ATTR_BW_ID_2,
 552         DCB_PG_ATTR_BW_ID_3,
 553         DCB_PG_ATTR_BW_ID_4,
 554         DCB_PG_ATTR_BW_ID_5,
 555         DCB_PG_ATTR_BW_ID_6,
 556         DCB_PG_ATTR_BW_ID_7,
 557         DCB_PG_ATTR_BW_ID_MAX,
 558         DCB_PG_ATTR_BW_ID_ALL,
 559
 560         __DCB_PG_ATTR_ENUM_MAX,
 561         DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
 562 };
 563
 564 /**
 565  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
 566  *
 567  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
 568  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
 569  *                          Valid values are:  0-7
 570  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
 571  *                                Some devices may not support changing the
 572  *                                user priority map of a TC.
 573  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
 574  *                                 0 - none
 575  *                                 1 - group strict
 576  *                                 2 - link strict
 577  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
 578  *                            not configured to use link strict priority,
 579  *                            this is the percentage of bandwidth of the
 580  *                            priority group this traffic class belongs to
 581  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
 582  *
 583  */
 584 enum dcbnl_tc_attrs {
 585         DCB_TC_ATTR_PARAM_UNDEFINED,
 586
 587         DCB_TC_ATTR_PARAM_PGID,
 588         DCB_TC_ATTR_PARAM_UP_MAPPING,
 589         DCB_TC_ATTR_PARAM_STRICT_PRIO,
 590         DCB_TC_ATTR_PARAM_BW_PCT,
 591         DCB_TC_ATTR_PARAM_ALL,
 592
 593         __DCB_TC_ATTR_PARAM_ENUM_MAX,
 594         DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
 595 };
 596
 597 /**
 598  * enum dcbnl_cap_attrs - DCB Capability attributes
 599  *
 600  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
 601  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
 602  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
 603  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
 604  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
 605  *                               traffic class mapping
 606  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
 607  *                                number of traffic classes the device
 608  *                                can be configured to use for Priority Groups
 609  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
 610  *                                 number of traffic classes the device can be
 611  *                                 configured to use for Priority Flow Control
 612  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
 613  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
 614  *                             Notification
 615  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
 616  *
 617  */
 618 enum dcbnl_cap_attrs {
 619         DCB_CAP_ATTR_UNDEFINED,
 620         DCB_CAP_ATTR_ALL,
 621         DCB_CAP_ATTR_PG,
 622         DCB_CAP_ATTR_PFC,
 623         DCB_CAP_ATTR_UP2TC,
 624         DCB_CAP_ATTR_PG_TCS,
 625         DCB_CAP_ATTR_PFC_TCS,
 626         DCB_CAP_ATTR_GSP,
 627         DCB_CAP_ATTR_BCN,
 628         DCB_CAP_ATTR_DCBX,
 629
 630         __DCB_CAP_ATTR_ENUM_MAX,
 631         DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
 632 };
 633
 634 /**
 635  * DCBX capability flags
 636  *
 637  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
 638  *                     'set' routines are used to configure the device with
 639  *                     the negotiated parameters
 640  *
 641  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
 642  *                            by another entity
 643  *                            'get' routines are used to retrieve the
 644  *                            negotiated parameters
 645  *                            'set' routines can be used to set the initial
 646  *                            negotiation configuration
 647  *
 648  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
 649  *                        supports the CEE protocol flavor
 650  *
 651  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
 652  *                         supports the IEEE protocol flavor
 653  *
 654  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
 655  *                       supports static configuration (i.e no actual
 656  *                       negotiation is performed negotiated parameters equal
 657  *                       the initial configuration)
 658  *
 659  */
 660 #define DCB_CAP_DCBX_HOST               0x01
 661 #define DCB_CAP_DCBX_LLD_MANAGED        0x02
 662 #define DCB_CAP_DCBX_VER_CEE            0x04
 663 #define DCB_CAP_DCBX_VER_IEEE           0x08
 664 #define DCB_CAP_DCBX_STATIC             0x10
 665
 666 /**
 667  * enum dcbnl_numtcs_attrs - number of traffic classes
 668  *
 669  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
 670  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
 671  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
 672  *                               priority groups
 673  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
 674  *                                support priority flow control
 675  */
 676 enum dcbnl_numtcs_attrs {
 677         DCB_NUMTCS_ATTR_UNDEFINED,
 678         DCB_NUMTCS_ATTR_ALL,
 679         DCB_NUMTCS_ATTR_PG,
 680         DCB_NUMTCS_ATTR_PFC,
 681
 682         __DCB_NUMTCS_ATTR_ENUM_MAX,
 683         DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
 684 };
 685
 686 enum dcbnl_bcn_attrs{
 687         DCB_BCN_ATTR_UNDEFINED = 0,
 688
 689         DCB_BCN_ATTR_RP_0,
 690         DCB_BCN_ATTR_RP_1,
 691         DCB_BCN_ATTR_RP_2,
 692         DCB_BCN_ATTR_RP_3,
 693         DCB_BCN_ATTR_RP_4,
 694         DCB_BCN_ATTR_RP_5,
 695         DCB_BCN_ATTR_RP_6,
 696         DCB_BCN_ATTR_RP_7,
 697         DCB_BCN_ATTR_RP_ALL,
 698
 699         DCB_BCN_ATTR_BCNA_0,
 700         DCB_BCN_ATTR_BCNA_1,
 701         DCB_BCN_ATTR_ALPHA,
 702         DCB_BCN_ATTR_BETA,
 703         DCB_BCN_ATTR_GD,
 704         DCB_BCN_ATTR_GI,
 705         DCB_BCN_ATTR_TMAX,
 706         DCB_BCN_ATTR_TD,
 707         DCB_BCN_ATTR_RMIN,
 708         DCB_BCN_ATTR_W,
 709         DCB_BCN_ATTR_RD,
 710         DCB_BCN_ATTR_RU,
 711         DCB_BCN_ATTR_WRTT,
 712         DCB_BCN_ATTR_RI,
 713         DCB_BCN_ATTR_C,
 714         DCB_BCN_ATTR_ALL,
 715
 716         __DCB_BCN_ATTR_ENUM_MAX,
 717         DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
 718 };
 719
 720 /**
 721  * enum dcb_general_attr_values - general DCB attribute values
 722  *
 723  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
 724  *
 725  */
 726 enum dcb_general_attr_values {
 727         DCB_ATTR_VALUE_UNDEFINED = 0xff
 728 };
 729
 730 #define DCB_APP_IDTYPE_ETHTYPE  0x00
 731 #define DCB_APP_IDTYPE_PORTNUM  0x01
 732 enum dcbnl_app_attrs {
 733         DCB_APP_ATTR_UNDEFINED,
 734
 735         DCB_APP_ATTR_IDTYPE,
 736         DCB_APP_ATTR_ID,
 737         DCB_APP_ATTR_PRIORITY,
 738
 739         __DCB_APP_ATTR_ENUM_MAX,
 740         DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
 741 };
 742
 743 /**
 744  * enum dcbnl_featcfg_attrs - features conifiguration flags
 745  *
 746  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
 747  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
 748  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
 749  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
 750  *                                 flow control
 751  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
 752  *
 753  */
 754 #define DCB_FEATCFG_ERROR       0x01    /* error in feature resolution */
 755 #define DCB_FEATCFG_ENABLE      0x02    /* enable feature */
 756 #define DCB_FEATCFG_WILLING     0x04    /* feature is willing */
 757 #define DCB_FEATCFG_ADVERTISE   0x08    /* advertise feature */
 758 enum dcbnl_featcfg_attrs {
 759         DCB_FEATCFG_ATTR_UNDEFINED,
 760         DCB_FEATCFG_ATTR_ALL,
 761         DCB_FEATCFG_ATTR_PG,
 762         DCB_FEATCFG_ATTR_PFC,
 763         DCB_FEATCFG_ATTR_APP,
 764
 765         __DCB_FEATCFG_ATTR_ENUM_MAX,
 766         DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
 767 };
 768
 769 #endif /* __LINUX_DCBNL_H__ */