include/linux/dcbnl.h

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