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      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 (at) 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.
    211  *
    212  * @selector: protocol identifier type
    213  * @protocol: protocol of type indicated
    214  * @priority: 3-bit unsigned integer indicating priority for IEEE
    215  *            8-bit 802.1p user priority bitmap for CEE
    216  *
    217  * ----
    218  *  Selector field values for IEEE 802.1Qaz
    219  *	0	Reserved
    220  *	1	Ethertype
    221  *	2	Well known port number over TCP or SCTP
    222  *	3	Well known port number over UDP or DCCP
    223  *	4	Well known port number over TCP, SCTP, UDP, or DCCP
    224  *	5-7	Reserved
    225  *
    226  *  Selector field values for CEE
    227  *	0	Ethertype
    228  *	1	Well known port number over TCP or UDP
    229  *	2-3	Reserved
    230  */
    231 struct dcb_app {
    232 	__u8	selector;
    233 	__u8	priority;
    234 	__u16	protocol;
    235 };
    236 
    237 /**
    238  * struct dcb_peer_app_info - APP feature information sent by the peer
    239  *
    240  * @willing: willing bit in the peer APP tlv
    241  * @error: error bit in the peer APP tlv
    242  *
    243  * In addition to this information the full peer APP tlv also contains
    244  * a table of 'app_count' APP objects defined above.
    245  */
    246 struct dcb_peer_app_info {
    247 	__u8	willing;
    248 	__u8	error;
    249 };
    250 
    251 struct dcbmsg {
    252 	__u8               dcb_family;
    253 	__u8               cmd;
    254 	__u16              dcb_pad;
    255 };
    256 
    257 /**
    258  * enum dcbnl_commands - supported DCB commands
    259  *
    260  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
    261  * @DCB_CMD_GSTATE: request the state of DCB in the device
    262  * @DCB_CMD_SSTATE: set the state of DCB in the device
    263  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
    264  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
    265  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
    266  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
    267  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
    268  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
    269  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
    270  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
    271  *                        device.  Only useful when using bonding.
    272  * @DCB_CMD_GCAP: request the DCB capabilities of the device
    273  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
    274  * @DCB_CMD_SNUMTCS: set the number of traffic classes
    275  * @DCB_CMD_GBCN: set backward congestion notification configuration
    276  * @DCB_CMD_SBCN: get backward congestion notification configration.
    277  * @DCB_CMD_GAPP: get application protocol configuration
    278  * @DCB_CMD_SAPP: set application protocol configuration
    279  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
    280  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
    281  * @DCB_CMD_GDCBX: get DCBX engine configuration
    282  * @DCB_CMD_SDCBX: set DCBX engine configuration
    283  * @DCB_CMD_GFEATCFG: get DCBX features flags
    284  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
    285  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
    286  * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
    287  */
    288 enum dcbnl_commands {
    289 	DCB_CMD_UNDEFINED,
    290 
    291 	DCB_CMD_GSTATE,
    292 	DCB_CMD_SSTATE,
    293 
    294 	DCB_CMD_PGTX_GCFG,
    295 	DCB_CMD_PGTX_SCFG,
    296 	DCB_CMD_PGRX_GCFG,
    297 	DCB_CMD_PGRX_SCFG,
    298 
    299 	DCB_CMD_PFC_GCFG,
    300 	DCB_CMD_PFC_SCFG,
    301 
    302 	DCB_CMD_SET_ALL,
    303 
    304 	DCB_CMD_GPERM_HWADDR,
    305 
    306 	DCB_CMD_GCAP,
    307 
    308 	DCB_CMD_GNUMTCS,
    309 	DCB_CMD_SNUMTCS,
    310 
    311 	DCB_CMD_PFC_GSTATE,
    312 	DCB_CMD_PFC_SSTATE,
    313 
    314 	DCB_CMD_BCN_GCFG,
    315 	DCB_CMD_BCN_SCFG,
    316 
    317 	DCB_CMD_GAPP,
    318 	DCB_CMD_SAPP,
    319 
    320 	DCB_CMD_IEEE_SET,
    321 	DCB_CMD_IEEE_GET,
    322 
    323 	DCB_CMD_GDCBX,
    324 	DCB_CMD_SDCBX,
    325 
    326 	DCB_CMD_GFEATCFG,
    327 	DCB_CMD_SFEATCFG,
    328 
    329 	DCB_CMD_CEE_GET,
    330 	DCB_CMD_IEEE_DEL,
    331 
    332 	__DCB_CMD_ENUM_MAX,
    333 	DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
    334 };
    335 
    336 /**
    337  * enum dcbnl_attrs - DCB top-level netlink attributes
    338  *
    339  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
    340  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
    341  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
    342  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
    343  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
    344  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
    345  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
    346  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
    347  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
    348  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
    349  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
    350  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
    351  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
    352  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
    353  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
    354  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
    355  */
    356 enum dcbnl_attrs {
    357 	DCB_ATTR_UNDEFINED,
    358 
    359 	DCB_ATTR_IFNAME,
    360 	DCB_ATTR_STATE,
    361 	DCB_ATTR_PFC_STATE,
    362 	DCB_ATTR_PFC_CFG,
    363 	DCB_ATTR_NUM_TC,
    364 	DCB_ATTR_PG_CFG,
    365 	DCB_ATTR_SET_ALL,
    366 	DCB_ATTR_PERM_HWADDR,
    367 	DCB_ATTR_CAP,
    368 	DCB_ATTR_NUMTCS,
    369 	DCB_ATTR_BCN,
    370 	DCB_ATTR_APP,
    371 
    372 	/* IEEE std attributes */
    373 	DCB_ATTR_IEEE,
    374 
    375 	DCB_ATTR_DCBX,
    376 	DCB_ATTR_FEATCFG,
    377 
    378 	/* CEE nested attributes */
    379 	DCB_ATTR_CEE,
    380 
    381 	__DCB_ATTR_ENUM_MAX,
    382 	DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
    383 };
    384 
    385 /**
    386  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
    387  *
    388  * @DCB_ATTR_IEEE_UNSPEC: unspecified
    389  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
    390  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
    391  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
    392  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
    393  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
    394  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
    395  */
    396 enum ieee_attrs {
    397 	DCB_ATTR_IEEE_UNSPEC,
    398 	DCB_ATTR_IEEE_ETS,
    399 	DCB_ATTR_IEEE_PFC,
    400 	DCB_ATTR_IEEE_APP_TABLE,
    401 	DCB_ATTR_IEEE_PEER_ETS,
    402 	DCB_ATTR_IEEE_PEER_PFC,
    403 	DCB_ATTR_IEEE_PEER_APP,
    404 	DCB_ATTR_IEEE_MAXRATE,
    405 	DCB_ATTR_IEEE_QCN,
    406 	DCB_ATTR_IEEE_QCN_STATS,
    407 	__DCB_ATTR_IEEE_MAX
    408 };
    409 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
    410 
    411 enum ieee_attrs_app {
    412 	DCB_ATTR_IEEE_APP_UNSPEC,
    413 	DCB_ATTR_IEEE_APP,
    414 	__DCB_ATTR_IEEE_APP_MAX
    415 };
    416 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
    417 
    418 /**
    419  * enum cee_attrs - CEE DCBX get attributes.
    420  *
    421  * @DCB_ATTR_CEE_UNSPEC: unspecified
    422  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
    423  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
    424  * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
    425  * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
    426  * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
    427  * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
    428  * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
    429  * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
    430  *
    431  * An aggregated collection of the cee std negotiated parameters.
    432  */
    433 enum cee_attrs {
    434 	DCB_ATTR_CEE_UNSPEC,
    435 	DCB_ATTR_CEE_PEER_PG,
    436 	DCB_ATTR_CEE_PEER_PFC,
    437 	DCB_ATTR_CEE_PEER_APP_TABLE,
    438 	DCB_ATTR_CEE_TX_PG,
    439 	DCB_ATTR_CEE_RX_PG,
    440 	DCB_ATTR_CEE_PFC,
    441 	DCB_ATTR_CEE_APP_TABLE,
    442 	DCB_ATTR_CEE_FEAT,
    443 	__DCB_ATTR_CEE_MAX
    444 };
    445 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
    446 
    447 enum peer_app_attr {
    448 	DCB_ATTR_CEE_PEER_APP_UNSPEC,
    449 	DCB_ATTR_CEE_PEER_APP_INFO,
    450 	DCB_ATTR_CEE_PEER_APP,
    451 	__DCB_ATTR_CEE_PEER_APP_MAX
    452 };
    453 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
    454 
    455 enum cee_attrs_app {
    456 	DCB_ATTR_CEE_APP_UNSPEC,
    457 	DCB_ATTR_CEE_APP,
    458 	__DCB_ATTR_CEE_APP_MAX
    459 };
    460 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
    461 
    462 /**
    463  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
    464  *
    465  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
    466  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
    467  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
    468  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
    469  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
    470  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
    471  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
    472  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
    473  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
    474  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
    475  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
    476  *
    477  */
    478 enum dcbnl_pfc_up_attrs {
    479 	DCB_PFC_UP_ATTR_UNDEFINED,
    480 
    481 	DCB_PFC_UP_ATTR_0,
    482 	DCB_PFC_UP_ATTR_1,
    483 	DCB_PFC_UP_ATTR_2,
    484 	DCB_PFC_UP_ATTR_3,
    485 	DCB_PFC_UP_ATTR_4,
    486 	DCB_PFC_UP_ATTR_5,
    487 	DCB_PFC_UP_ATTR_6,
    488 	DCB_PFC_UP_ATTR_7,
    489 	DCB_PFC_UP_ATTR_ALL,
    490 
    491 	__DCB_PFC_UP_ATTR_ENUM_MAX,
    492 	DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
    493 };
    494 
    495 /**
    496  * enum dcbnl_pg_attrs - DCB Priority Group attributes
    497  *
    498  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
    499  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
    500  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
    501  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
    502  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
    503  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
    504  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
    505  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
    506  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
    507  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
    508  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
    509  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
    510  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
    511  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
    512  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
    513  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
    514  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
    515  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
    516  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
    517  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
    518  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
    519  *
    520  */
    521 enum dcbnl_pg_attrs {
    522 	DCB_PG_ATTR_UNDEFINED,
    523 
    524 	DCB_PG_ATTR_TC_0,
    525 	DCB_PG_ATTR_TC_1,
    526 	DCB_PG_ATTR_TC_2,
    527 	DCB_PG_ATTR_TC_3,
    528 	DCB_PG_ATTR_TC_4,
    529 	DCB_PG_ATTR_TC_5,
    530 	DCB_PG_ATTR_TC_6,
    531 	DCB_PG_ATTR_TC_7,
    532 	DCB_PG_ATTR_TC_MAX,
    533 	DCB_PG_ATTR_TC_ALL,
    534 
    535 	DCB_PG_ATTR_BW_ID_0,
    536 	DCB_PG_ATTR_BW_ID_1,
    537 	DCB_PG_ATTR_BW_ID_2,
    538 	DCB_PG_ATTR_BW_ID_3,
    539 	DCB_PG_ATTR_BW_ID_4,
    540 	DCB_PG_ATTR_BW_ID_5,
    541 	DCB_PG_ATTR_BW_ID_6,
    542 	DCB_PG_ATTR_BW_ID_7,
    543 	DCB_PG_ATTR_BW_ID_MAX,
    544 	DCB_PG_ATTR_BW_ID_ALL,
    545 
    546 	__DCB_PG_ATTR_ENUM_MAX,
    547 	DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
    548 };
    549 
    550 /**
    551  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
    552  *
    553  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
    554  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
    555  *                          Valid values are:  0-7
    556  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
    557  *                                Some devices may not support changing the
    558  *                                user priority map of a TC.
    559  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
    560  *                                 0 - none
    561  *                                 1 - group strict
    562  *                                 2 - link strict
    563  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
    564  *                            not configured to use link strict priority,
    565  *                            this is the percentage of bandwidth of the
    566  *                            priority group this traffic class belongs to
    567  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
    568  *
    569  */
    570 enum dcbnl_tc_attrs {
    571 	DCB_TC_ATTR_PARAM_UNDEFINED,
    572 
    573 	DCB_TC_ATTR_PARAM_PGID,
    574 	DCB_TC_ATTR_PARAM_UP_MAPPING,
    575 	DCB_TC_ATTR_PARAM_STRICT_PRIO,
    576 	DCB_TC_ATTR_PARAM_BW_PCT,
    577 	DCB_TC_ATTR_PARAM_ALL,
    578 
    579 	__DCB_TC_ATTR_PARAM_ENUM_MAX,
    580 	DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
    581 };
    582 
    583 /**
    584  * enum dcbnl_cap_attrs - DCB Capability attributes
    585  *
    586  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
    587  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
    588  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
    589  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
    590  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
    591  *                               traffic class mapping
    592  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
    593  *                                number of traffic classes the device
    594  *                                can be configured to use for Priority Groups
    595  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
    596  *                                 number of traffic classes the device can be
    597  *                                 configured to use for Priority Flow Control
    598  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
    599  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
    600  *                             Notification
    601  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
    602  *
    603  */
    604 enum dcbnl_cap_attrs {
    605 	DCB_CAP_ATTR_UNDEFINED,
    606 	DCB_CAP_ATTR_ALL,
    607 	DCB_CAP_ATTR_PG,
    608 	DCB_CAP_ATTR_PFC,
    609 	DCB_CAP_ATTR_UP2TC,
    610 	DCB_CAP_ATTR_PG_TCS,
    611 	DCB_CAP_ATTR_PFC_TCS,
    612 	DCB_CAP_ATTR_GSP,
    613 	DCB_CAP_ATTR_BCN,
    614 	DCB_CAP_ATTR_DCBX,
    615 
    616 	__DCB_CAP_ATTR_ENUM_MAX,
    617 	DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
    618 };
    619 
    620 /**
    621  * DCBX capability flags
    622  *
    623  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
    624  *                     'set' routines are used to configure the device with
    625  *                     the negotiated parameters
    626  *
    627  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
    628  *                            by another entity
    629  *                            'get' routines are used to retrieve the
    630  *                            negotiated parameters
    631  *                            'set' routines can be used to set the initial
    632  *                            negotiation configuration
    633  *
    634  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
    635  *                        supports the CEE protocol flavor
    636  *
    637  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
    638  *                         supports the IEEE protocol flavor
    639  *
    640  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
    641  *                       supports static configuration (i.e no actual
    642  *                       negotiation is performed negotiated parameters equal
    643  *                       the initial configuration)
    644  *
    645  */
    646 #define DCB_CAP_DCBX_HOST		0x01
    647 #define DCB_CAP_DCBX_LLD_MANAGED	0x02
    648 #define DCB_CAP_DCBX_VER_CEE		0x04
    649 #define DCB_CAP_DCBX_VER_IEEE		0x08
    650 #define DCB_CAP_DCBX_STATIC		0x10
    651 
    652 /**
    653  * enum dcbnl_numtcs_attrs - number of traffic classes
    654  *
    655  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
    656  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
    657  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
    658  *                               priority groups
    659  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
    660  *                                support priority flow control
    661  */
    662 enum dcbnl_numtcs_attrs {
    663 	DCB_NUMTCS_ATTR_UNDEFINED,
    664 	DCB_NUMTCS_ATTR_ALL,
    665 	DCB_NUMTCS_ATTR_PG,
    666 	DCB_NUMTCS_ATTR_PFC,
    667 
    668 	__DCB_NUMTCS_ATTR_ENUM_MAX,
    669 	DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
    670 };
    671 
    672 enum dcbnl_bcn_attrs{
    673 	DCB_BCN_ATTR_UNDEFINED = 0,
    674 
    675 	DCB_BCN_ATTR_RP_0,
    676 	DCB_BCN_ATTR_RP_1,
    677 	DCB_BCN_ATTR_RP_2,
    678 	DCB_BCN_ATTR_RP_3,
    679 	DCB_BCN_ATTR_RP_4,
    680 	DCB_BCN_ATTR_RP_5,
    681 	DCB_BCN_ATTR_RP_6,
    682 	DCB_BCN_ATTR_RP_7,
    683 	DCB_BCN_ATTR_RP_ALL,
    684 
    685 	DCB_BCN_ATTR_BCNA_0,
    686 	DCB_BCN_ATTR_BCNA_1,
    687 	DCB_BCN_ATTR_ALPHA,
    688 	DCB_BCN_ATTR_BETA,
    689 	DCB_BCN_ATTR_GD,
    690 	DCB_BCN_ATTR_GI,
    691 	DCB_BCN_ATTR_TMAX,
    692 	DCB_BCN_ATTR_TD,
    693 	DCB_BCN_ATTR_RMIN,
    694 	DCB_BCN_ATTR_W,
    695 	DCB_BCN_ATTR_RD,
    696 	DCB_BCN_ATTR_RU,
    697 	DCB_BCN_ATTR_WRTT,
    698 	DCB_BCN_ATTR_RI,
    699 	DCB_BCN_ATTR_C,
    700 	DCB_BCN_ATTR_ALL,
    701 
    702 	__DCB_BCN_ATTR_ENUM_MAX,
    703 	DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
    704 };
    705 
    706 /**
    707  * enum dcb_general_attr_values - general DCB attribute values
    708  *
    709  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
    710  *
    711  */
    712 enum dcb_general_attr_values {
    713 	DCB_ATTR_VALUE_UNDEFINED = 0xff
    714 };
    715 
    716 #define DCB_APP_IDTYPE_ETHTYPE	0x00
    717 #define DCB_APP_IDTYPE_PORTNUM	0x01
    718 enum dcbnl_app_attrs {
    719 	DCB_APP_ATTR_UNDEFINED,
    720 
    721 	DCB_APP_ATTR_IDTYPE,
    722 	DCB_APP_ATTR_ID,
    723 	DCB_APP_ATTR_PRIORITY,
    724 
    725 	__DCB_APP_ATTR_ENUM_MAX,
    726 	DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
    727 };
    728 
    729 /**
    730  * enum dcbnl_featcfg_attrs - features conifiguration flags
    731  *
    732  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
    733  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
    734  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
    735  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
    736  *                                 flow control
    737  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
    738  *
    739  */
    740 #define DCB_FEATCFG_ERROR	0x01	/* error in feature resolution */
    741 #define DCB_FEATCFG_ENABLE	0x02	/* enable feature */
    742 #define DCB_FEATCFG_WILLING	0x04	/* feature is willing */
    743 #define DCB_FEATCFG_ADVERTISE	0x08	/* advertise feature */
    744 enum dcbnl_featcfg_attrs {
    745 	DCB_FEATCFG_ATTR_UNDEFINED,
    746 	DCB_FEATCFG_ATTR_ALL,
    747 	DCB_FEATCFG_ATTR_PG,
    748 	DCB_FEATCFG_ATTR_PFC,
    749 	DCB_FEATCFG_ATTR_APP,
    750 
    751 	__DCB_FEATCFG_ATTR_ENUM_MAX,
    752 	DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
    753 };
    754 
    755 #endif /* __LINUX_DCBNL_H__ */
    756