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 /* Non-std selector values */
 222 #define DCB_APP_SEL_PCP 255
 223
 224 /* This structure contains the IEEE 802.1Qaz APP managed object. This
 225  * object is also used for the CEE std as well.
 226  *
 227  * @selector: protocol identifier type
 228  * @protocol: protocol of type indicated
 229  * @priority: 3-bit unsigned integer indicating priority for IEEE
 230  *            8-bit 802.1p user priority bitmap for CEE
 231  *
 232  * ----
 233  *  Selector field values for IEEE 802.1Qaz
 234  *      0       Reserved
 235  *      1       Ethertype
 236  *      2       Well known port number over TCP or SCTP
 237  *      3       Well known port number over UDP or DCCP
 238  *      4       Well known port number over TCP, SCTP, UDP, or DCCP
 239  *      5       Differentiated Services Code Point (DSCP) value
 240  *      6-7     Reserved
 241  *
 242  *  Selector field values for CEE
 243  *      0       Ethertype
 244  *      1       Well known port number over TCP or UDP
 245  *      2-3     Reserved
 246  */
 247 struct dcb_app {
 248         __u8    selector;
 249         __u8    priority;
 250         __u16   protocol;
 251 };
 252
 253 #define IEEE_8021QAZ_APP_SEL_MAX 255
 254
 255 /**
 256  * struct dcb_peer_app_info - APP feature information sent by the peer
 257  *
 258  * @willing: willing bit in the peer APP tlv
 259  * @error: error bit in the peer APP tlv
 260  *
 261  * In addition to this information the full peer APP tlv also contains
 262  * a table of 'app_count' APP objects defined above.
 263  */
 264 struct dcb_peer_app_info {
 265         __u8    willing;
 266         __u8    error;
 267 };
 268
 269 struct dcbmsg {
 270         __u8               dcb_family;
 271         __u8               cmd;
 272         __u16              dcb_pad;
 273 };
 274
 275 /**
 276  * enum dcbnl_commands - supported DCB commands
 277  *
 278  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
 279  * @DCB_CMD_GSTATE: request the state of DCB in the device
 280  * @DCB_CMD_SSTATE: set the state of DCB in the device
 281  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
 282  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
 283  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
 284  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
 285  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
 286  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
 287  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
 288  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
 289  *                        device.  Only useful when using bonding.
 290  * @DCB_CMD_GCAP: request the DCB capabilities of the device
 291  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
 292  * @DCB_CMD_SNUMTCS: set the number of traffic classes
 293  * @DCB_CMD_GBCN: set backward congestion notification configuration
 294  * @DCB_CMD_SBCN: get backward congestion notification configuration.
 295  * @DCB_CMD_GAPP: get application protocol configuration
 296  * @DCB_CMD_SAPP: set application protocol configuration
 297  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
 298  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
 299  * @DCB_CMD_GDCBX: get DCBX engine configuration
 300  * @DCB_CMD_SDCBX: set DCBX engine configuration
 301  * @DCB_CMD_GFEATCFG: get DCBX features flags
 302  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
 303  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
 304  * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
 305  */
 306 enum dcbnl_commands {
 307         DCB_CMD_UNDEFINED,
 308
 309         DCB_CMD_GSTATE,
 310         DCB_CMD_SSTATE,
 311
 312         DCB_CMD_PGTX_GCFG,
 313         DCB_CMD_PGTX_SCFG,
 314         DCB_CMD_PGRX_GCFG,
 315         DCB_CMD_PGRX_SCFG,
 316
 317         DCB_CMD_PFC_GCFG,
 318         DCB_CMD_PFC_SCFG,
 319
 320         DCB_CMD_SET_ALL,
 321
 322         DCB_CMD_GPERM_HWADDR,
 323
 324         DCB_CMD_GCAP,
 325
 326         DCB_CMD_GNUMTCS,
 327         DCB_CMD_SNUMTCS,
 328
 329         DCB_CMD_PFC_GSTATE,
 330         DCB_CMD_PFC_SSTATE,
 331
 332         DCB_CMD_BCN_GCFG,
 333         DCB_CMD_BCN_SCFG,
 334
 335         DCB_CMD_GAPP,
 336         DCB_CMD_SAPP,
 337
 338         DCB_CMD_IEEE_SET,
 339         DCB_CMD_IEEE_GET,
 340
 341         DCB_CMD_GDCBX,
 342         DCB_CMD_SDCBX,
 343
 344         DCB_CMD_GFEATCFG,
 345         DCB_CMD_SFEATCFG,
 346
 347         DCB_CMD_CEE_GET,
 348         DCB_CMD_IEEE_DEL,
 349
 350         __DCB_CMD_ENUM_MAX,
 351         DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
 352 };
 353
 354 /**
 355  * enum dcbnl_attrs - DCB top-level netlink attributes
 356  *
 357  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
 358  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
 359  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
 360  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
 361  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
 362  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
 363  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
 364  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
 365  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
 366  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
 367  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
 368  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
 369  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
 370  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
 371  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
 372  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
 373  */
 374 enum dcbnl_attrs {
 375         DCB_ATTR_UNDEFINED,
 376
 377         DCB_ATTR_IFNAME,
 378         DCB_ATTR_STATE,
 379         DCB_ATTR_PFC_STATE,
 380         DCB_ATTR_PFC_CFG,
 381         DCB_ATTR_NUM_TC,
 382         DCB_ATTR_PG_CFG,
 383         DCB_ATTR_SET_ALL,
 384         DCB_ATTR_PERM_HWADDR,
 385         DCB_ATTR_CAP,
 386         DCB_ATTR_NUMTCS,
 387         DCB_ATTR_BCN,
 388         DCB_ATTR_APP,
 389
 390         /* IEEE std attributes */
 391         DCB_ATTR_IEEE,
 392
 393         DCB_ATTR_DCBX,
 394         DCB_ATTR_FEATCFG,
 395
 396         /* CEE nested attributes */
 397         DCB_ATTR_CEE,
 398
 399         __DCB_ATTR_ENUM_MAX,
 400         DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
 401 };
 402
 403 /**
 404  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
 405  *
 406  * @DCB_ATTR_IEEE_UNSPEC: unspecified
 407  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
 408  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
 409  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
 410  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
 411  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
 412  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
 413  * @DCB_ATTR_DCB_APP_TRUST_TABLE: selector trust table
 414  * @DCB_ATTR_DCB_REWR_TABLE: rewrite configuration
 415  */
 416 enum ieee_attrs {
 417         DCB_ATTR_IEEE_UNSPEC,
 418         DCB_ATTR_IEEE_ETS,
 419         DCB_ATTR_IEEE_PFC,
 420         DCB_ATTR_IEEE_APP_TABLE,
 421         DCB_ATTR_IEEE_PEER_ETS,
 422         DCB_ATTR_IEEE_PEER_PFC,
 423         DCB_ATTR_IEEE_PEER_APP,
 424         DCB_ATTR_IEEE_MAXRATE,
 425         DCB_ATTR_IEEE_QCN,
 426         DCB_ATTR_IEEE_QCN_STATS,
 427         DCB_ATTR_DCB_BUFFER,
 428         DCB_ATTR_DCB_APP_TRUST_TABLE,
 429         DCB_ATTR_DCB_REWR_TABLE,
 430         __DCB_ATTR_IEEE_MAX
 431 };
 432 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
 433
 434 enum ieee_attrs_app {
 435         DCB_ATTR_IEEE_APP_UNSPEC,
 436         DCB_ATTR_IEEE_APP,
 437         DCB_ATTR_DCB_APP,
 438         __DCB_ATTR_IEEE_APP_MAX
 439 };
 440 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
 441
 442 /**
 443  * enum cee_attrs - CEE DCBX get attributes.
 444  *
 445  * @DCB_ATTR_CEE_UNSPEC: unspecified
 446  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
 447  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
 448  * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
 449  * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
 450  * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
 451  * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
 452  * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
 453  * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
 454  *
 455  * An aggregated collection of the cee std negotiated parameters.
 456  */
 457 enum cee_attrs {
 458         DCB_ATTR_CEE_UNSPEC,
 459         DCB_ATTR_CEE_PEER_PG,
 460         DCB_ATTR_CEE_PEER_PFC,
 461         DCB_ATTR_CEE_PEER_APP_TABLE,
 462         DCB_ATTR_CEE_TX_PG,
 463         DCB_ATTR_CEE_RX_PG,
 464         DCB_ATTR_CEE_PFC,
 465         DCB_ATTR_CEE_APP_TABLE,
 466         DCB_ATTR_CEE_FEAT,
 467         __DCB_ATTR_CEE_MAX
 468 };
 469 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
 470
 471 enum peer_app_attr {
 472         DCB_ATTR_CEE_PEER_APP_UNSPEC,
 473         DCB_ATTR_CEE_PEER_APP_INFO,
 474         DCB_ATTR_CEE_PEER_APP,
 475         __DCB_ATTR_CEE_PEER_APP_MAX
 476 };
 477 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
 478
 479 enum cee_attrs_app {
 480         DCB_ATTR_CEE_APP_UNSPEC,
 481         DCB_ATTR_CEE_APP,
 482         __DCB_ATTR_CEE_APP_MAX
 483 };
 484 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
 485
 486 /**
 487  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
 488  *
 489  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
 490  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
 491  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
 492  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
 493  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
 494  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
 495  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
 496  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
 497  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
 498  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
 499  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
 500  *
 501  */
 502 enum dcbnl_pfc_up_attrs {
 503         DCB_PFC_UP_ATTR_UNDEFINED,
 504
 505         DCB_PFC_UP_ATTR_0,
 506         DCB_PFC_UP_ATTR_1,
 507         DCB_PFC_UP_ATTR_2,
 508         DCB_PFC_UP_ATTR_3,
 509         DCB_PFC_UP_ATTR_4,
 510         DCB_PFC_UP_ATTR_5,
 511         DCB_PFC_UP_ATTR_6,
 512         DCB_PFC_UP_ATTR_7,
 513         DCB_PFC_UP_ATTR_ALL,
 514
 515         __DCB_PFC_UP_ATTR_ENUM_MAX,
 516         DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
 517 };
 518
 519 /**
 520  * enum dcbnl_pg_attrs - DCB Priority Group attributes
 521  *
 522  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
 523  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
 524  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
 525  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
 526  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
 527  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
 528  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
 529  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
 530  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
 531  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
 532  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
 533  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
 534  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
 535  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
 536  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
 537  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
 538  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
 539  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
 540  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
 541  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
 542  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
 543  *
 544  */
 545 enum dcbnl_pg_attrs {
 546         DCB_PG_ATTR_UNDEFINED,
 547
 548         DCB_PG_ATTR_TC_0,
 549         DCB_PG_ATTR_TC_1,
 550         DCB_PG_ATTR_TC_2,
 551         DCB_PG_ATTR_TC_3,
 552         DCB_PG_ATTR_TC_4,
 553         DCB_PG_ATTR_TC_5,
 554         DCB_PG_ATTR_TC_6,
 555         DCB_PG_ATTR_TC_7,
 556         DCB_PG_ATTR_TC_MAX,
 557         DCB_PG_ATTR_TC_ALL,
 558
 559         DCB_PG_ATTR_BW_ID_0,
 560         DCB_PG_ATTR_BW_ID_1,
 561         DCB_PG_ATTR_BW_ID_2,
 562         DCB_PG_ATTR_BW_ID_3,
 563         DCB_PG_ATTR_BW_ID_4,
 564         DCB_PG_ATTR_BW_ID_5,
 565         DCB_PG_ATTR_BW_ID_6,
 566         DCB_PG_ATTR_BW_ID_7,
 567         DCB_PG_ATTR_BW_ID_MAX,
 568         DCB_PG_ATTR_BW_ID_ALL,
 569
 570         __DCB_PG_ATTR_ENUM_MAX,
 571         DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
 572 };
 573
 574 /**
 575  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
 576  *
 577  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
 578  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
 579  *                          Valid values are:  0-7
 580  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
 581  *                                Some devices may not support changing the
 582  *                                user priority map of a TC.
 583  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
 584  *                                 0 - none
 585  *                                 1 - group strict
 586  *                                 2 - link strict
 587  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
 588  *                            not configured to use link strict priority,
 589  *                            this is the percentage of bandwidth of the
 590  *                            priority group this traffic class belongs to
 591  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
 592  *
 593  */
 594 enum dcbnl_tc_attrs {
 595         DCB_TC_ATTR_PARAM_UNDEFINED,
 596
 597         DCB_TC_ATTR_PARAM_PGID,
 598         DCB_TC_ATTR_PARAM_UP_MAPPING,
 599         DCB_TC_ATTR_PARAM_STRICT_PRIO,
 600         DCB_TC_ATTR_PARAM_BW_PCT,
 601         DCB_TC_ATTR_PARAM_ALL,
 602
 603         __DCB_TC_ATTR_PARAM_ENUM_MAX,
 604         DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
 605 };
 606
 607 /**
 608  * enum dcbnl_cap_attrs - DCB Capability attributes
 609  *
 610  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
 611  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
 612  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
 613  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
 614  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
 615  *                               traffic class mapping
 616  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
 617  *                                number of traffic classes the device
 618  *                                can be configured to use for Priority Groups
 619  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
 620  *                                 number of traffic classes the device can be
 621  *                                 configured to use for Priority Flow Control
 622  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
 623  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
 624  *                             Notification
 625  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
 626  *
 627  */
 628 enum dcbnl_cap_attrs {
 629         DCB_CAP_ATTR_UNDEFINED,
 630         DCB_CAP_ATTR_ALL,
 631         DCB_CAP_ATTR_PG,
 632         DCB_CAP_ATTR_PFC,
 633         DCB_CAP_ATTR_UP2TC,
 634         DCB_CAP_ATTR_PG_TCS,
 635         DCB_CAP_ATTR_PFC_TCS,
 636         DCB_CAP_ATTR_GSP,
 637         DCB_CAP_ATTR_BCN,
 638         DCB_CAP_ATTR_DCBX,
 639
 640         __DCB_CAP_ATTR_ENUM_MAX,
 641         DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
 642 };
 643
 644 /**
 645  * DCBX capability flags
 646  *
 647  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
 648  *                     'set' routines are used to configure the device with
 649  *                     the negotiated parameters
 650  *
 651  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
 652  *                            by another entity
 653  *                            'get' routines are used to retrieve the
 654  *                            negotiated parameters
 655  *                            'set' routines can be used to set the initial
 656  *                            negotiation configuration
 657  *
 658  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
 659  *                        supports the CEE protocol flavor
 660  *
 661  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
 662  *                         supports the IEEE protocol flavor
 663  *
 664  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
 665  *                       supports static configuration (i.e no actual
 666  *                       negotiation is performed negotiated parameters equal
 667  *                       the initial configuration)
 668  *
 669  */
 670 #define DCB_CAP_DCBX_HOST               0x01
 671 #define DCB_CAP_DCBX_LLD_MANAGED        0x02
 672 #define DCB_CAP_DCBX_VER_CEE            0x04
 673 #define DCB_CAP_DCBX_VER_IEEE           0x08
 674 #define DCB_CAP_DCBX_STATIC             0x10
 675
 676 /**
 677  * enum dcbnl_numtcs_attrs - number of traffic classes
 678  *
 679  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
 680  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
 681  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
 682  *                               priority groups
 683  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
 684  *                                support priority flow control
 685  */
 686 enum dcbnl_numtcs_attrs {
 687         DCB_NUMTCS_ATTR_UNDEFINED,
 688         DCB_NUMTCS_ATTR_ALL,
 689         DCB_NUMTCS_ATTR_PG,
 690         DCB_NUMTCS_ATTR_PFC,
 691
 692         __DCB_NUMTCS_ATTR_ENUM_MAX,
 693         DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
 694 };
 695
 696 enum dcbnl_bcn_attrs{
 697         DCB_BCN_ATTR_UNDEFINED = 0,
 698
 699         DCB_BCN_ATTR_RP_0,
 700         DCB_BCN_ATTR_RP_1,
 701         DCB_BCN_ATTR_RP_2,
 702         DCB_BCN_ATTR_RP_3,
 703         DCB_BCN_ATTR_RP_4,
 704         DCB_BCN_ATTR_RP_5,
 705         DCB_BCN_ATTR_RP_6,
 706         DCB_BCN_ATTR_RP_7,
 707         DCB_BCN_ATTR_RP_ALL,
 708
 709         DCB_BCN_ATTR_BCNA_0,
 710         DCB_BCN_ATTR_BCNA_1,
 711         DCB_BCN_ATTR_ALPHA,
 712         DCB_BCN_ATTR_BETA,
 713         DCB_BCN_ATTR_GD,
 714         DCB_BCN_ATTR_GI,
 715         DCB_BCN_ATTR_TMAX,
 716         DCB_BCN_ATTR_TD,
 717         DCB_BCN_ATTR_RMIN,
 718         DCB_BCN_ATTR_W,
 719         DCB_BCN_ATTR_RD,
 720         DCB_BCN_ATTR_RU,
 721         DCB_BCN_ATTR_WRTT,
 722         DCB_BCN_ATTR_RI,
 723         DCB_BCN_ATTR_C,
 724         DCB_BCN_ATTR_ALL,
 725
 726         __DCB_BCN_ATTR_ENUM_MAX,
 727         DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
 728 };
 729
 730 /**
 731  * enum dcb_general_attr_values - general DCB attribute values
 732  *
 733  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
 734  *
 735  */
 736 enum dcb_general_attr_values {
 737         DCB_ATTR_VALUE_UNDEFINED = 0xff
 738 };
 739
 740 #define DCB_APP_IDTYPE_ETHTYPE  0x00
 741 #define DCB_APP_IDTYPE_PORTNUM  0x01
 742 enum dcbnl_app_attrs {
 743         DCB_APP_ATTR_UNDEFINED,
 744
 745         DCB_APP_ATTR_IDTYPE,
 746         DCB_APP_ATTR_ID,
 747         DCB_APP_ATTR_PRIORITY,
 748
 749         __DCB_APP_ATTR_ENUM_MAX,
 750         DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
 751 };
 752
 753 /**
 754  * enum dcbnl_featcfg_attrs - features conifiguration flags
 755  *
 756  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
 757  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
 758  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
 759  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
 760  *                                 flow control
 761  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
 762  *
 763  */
 764 #define DCB_FEATCFG_ERROR       0x01    /* error in feature resolution */
 765 #define DCB_FEATCFG_ENABLE      0x02    /* enable feature */
 766 #define DCB_FEATCFG_WILLING     0x04    /* feature is willing */
 767 #define DCB_FEATCFG_ADVERTISE   0x08    /* advertise feature */
 768 enum dcbnl_featcfg_attrs {
 769         DCB_FEATCFG_ATTR_UNDEFINED,
 770         DCB_FEATCFG_ATTR_ALL,
 771         DCB_FEATCFG_ATTR_PG,
 772         DCB_FEATCFG_ATTR_PFC,
 773         DCB_FEATCFG_ATTR_APP,
 774
 775         __DCB_FEATCFG_ATTR_ENUM_MAX,
 776         DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
 777 };
 778
 779 #endif /* __LINUX_DCBNL_H__ */