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