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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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* This program is free software; you can redistribute it and/or modify it

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* under the terms and conditions of the GNU General Public License,

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* version 2, as published by the Free Software Foundation.

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* This program is distributed in the hope it will be useful, but WITHOUT

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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for

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* more details.

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* You should have received a copy of the GNU General Public License along with

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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple

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* Place - Suite 330, Boston, MA 02111-1307 USA.

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* Author: Lucy Liu <lucy.liu@intel.com>

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#ifndef __LINUX_DCBNL_H__

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#define __LINUX_DCBNL_H__

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#include <linux/types.h>

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/* IEEE 802.1Qaz std supported values */

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#define IEEE_8021QAZ_MAX_TCS 8

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#define IEEE_8021QAZ_TSA_STRICT 0

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#define IEEE_8021QAZ_TSA_CB_SHAPER 1

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#define IEEE_8021QAZ_TSA_ETS 2

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#define IEEE_8021QAZ_TSA_VENDOR 255

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/* This structure contains the IEEE 802.1Qaz ETS managed object

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* @willing: willing bit in ETS configuration TLV

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* @ets_cap: indicates supported capacity of ets feature

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* @cbs: credit based shaper ets algorithm supported

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* @tc_tx_bw: tc tx bandwidth indexed by traffic class

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* @tc_rx_bw: tc rx bandwidth indexed by traffic class

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* @tc_tsa: TSA Assignment table, indexed by traffic class

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* @prio_tc: priority assignment table mapping 8021Qp to traffic class

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* @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV

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* @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV

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* @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV

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* Recommended values are used to set fields in the ETS recommendation TLV

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* with hardware offloaded LLDP.

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* ----

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* TSA Assignment 8 bit identifiers

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* 0 strict priority

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* 1 credit-based shaper

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* 2 enhanced transmission selection

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* 3-254 reserved

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* 255 vendor specific

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struct ieee_ets {

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__u8 willing;

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__u8 ets_cap;

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__u8 cbs;

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__u8 tc_tx_bw[IEEE_8021QAZ_MAX_TCS];

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__u8 tc_rx_bw[IEEE_8021QAZ_MAX_TCS];

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__u8 tc_tsa[IEEE_8021QAZ_MAX_TCS];

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__u8 prio_tc[IEEE_8021QAZ_MAX_TCS];

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__u8 tc_reco_bw[IEEE_8021QAZ_MAX_TCS];

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__u8 tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];

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__u8 reco_prio_tc[IEEE_8021QAZ_MAX_TCS];

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};

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/* This structure contains rate limit extension to the IEEE 802.1Qaz ETS

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* managed object.

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* Values are 64 bits long and specified in Kbps to enable usage over both

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* slow and very fast networks.

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* @tc_maxrate: maximal tc tx bandwidth indexed by traffic class

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struct ieee_maxrate {

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__u64 tc_maxrate[IEEE_8021QAZ_MAX_TCS];

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};

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enum dcbnl_cndd_states {

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DCB_CNDD_RESET = 0,

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DCB_CNDD_EDGE,

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DCB_CNDD_INTERIOR,

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DCB_CNDD_INTERIOR_READY,

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};

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/* This structure contains the IEEE 802.1Qau QCN managed object.

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*@rpg_enable: enable QCN RP

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*@rppp_max_rps: maximum number of RPs allowed for this CNPV on this port

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*@rpg_time_reset: time between rate increases if no CNMs received.

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* given in u-seconds

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*@rpg_byte_reset: transmitted data between rate increases if no CNMs received.

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* given in Bytes

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*@rpg_threshold: The number of times rpByteStage or rpTimeStage can count

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* before RP rate control state machine advances states

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*@rpg_max_rate: the maxinun rate, in Mbits per second,

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* at which an RP can transmit

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*@rpg_ai_rate: The rate, in Mbits per second,

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* used to increase rpTargetRate in the RPR_ACTIVE_INCREASE

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*@rpg_hai_rate: The rate, in Mbits per second,

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* used to increase rpTargetRate in the RPR_HYPER_INCREASE state

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*@rpg_gd: Upon CNM receive, flow rate is limited to (Fb/Gd)*CurrentRate.

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* rpgGd is given as log2(Gd), where Gd may only be powers of 2

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*@rpg_min_dec_fac: The minimum factor by which the current transmit rate

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* can be changed by reception of a CNM.

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* value is given as percentage (1-100)

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*@rpg_min_rate: The minimum value, in bits per second, for rate to limit

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*@cndd_state_machine: The state of the congestion notification domain

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* defense state machine, as defined by IEEE 802.3Qau

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* section 32.1.1. In the interior ready state,

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* the QCN capable hardware may add CN-TAG TLV to the

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* outgoing traffic, to specifically identify outgoing

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* flows.

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struct ieee_qcn {

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__u8 rpg_enable[IEEE_8021QAZ_MAX_TCS];

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__u32 rppp_max_rps[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_time_reset[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_byte_reset[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_threshold[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_max_rate[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_ai_rate[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_hai_rate[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_gd[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_min_dec_fac[IEEE_8021QAZ_MAX_TCS];

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__u32 rpg_min_rate[IEEE_8021QAZ_MAX_TCS];

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__u32 cndd_state_machine[IEEE_8021QAZ_MAX_TCS];

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};

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/* This structure contains the IEEE 802.1Qau QCN statistics.

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*@rppp_rp_centiseconds: the number of RP-centiseconds accumulated

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* by RPs at this priority level on this Port

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*@rppp_created_rps: number of active RPs(flows) that react to CNMs

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struct ieee_qcn_stats {

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__u64 rppp_rp_centiseconds[IEEE_8021QAZ_MAX_TCS];

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__u32 rppp_created_rps[IEEE_8021QAZ_MAX_TCS];

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};

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/* This structure contains the IEEE 802.1Qaz PFC managed object

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* @pfc_cap: Indicates the number of traffic classes on the local device

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* that may simultaneously have PFC enabled.

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* @pfc_en: bitmap indicating pfc enabled traffic classes

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* @mbc: enable macsec bypass capability

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* @delay: the allowance made for a round-trip propagation delay of the

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* link in bits.

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* @requests: count of the sent pfc frames

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* @indications: count of the received pfc frames

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struct ieee_pfc {

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__u8 pfc_cap;

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__u8 pfc_en;

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__u8 mbc;

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__u16 delay;

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__u64 requests[IEEE_8021QAZ_MAX_TCS];

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__u64 indications[IEEE_8021QAZ_MAX_TCS];

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};

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#define IEEE_8021Q_MAX_PRIORITIES 8

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#define DCBX_MAX_BUFFERS 8

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struct dcbnl_buffer {

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/* priority to buffer mapping */

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__u8 prio2buffer[IEEE_8021Q_MAX_PRIORITIES];

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/* buffer size in Bytes */

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__u32 buffer_size[DCBX_MAX_BUFFERS];

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__u32 total_size;

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};

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/* CEE DCBX std supported values */

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#define CEE_DCBX_MAX_PGS 8

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#define CEE_DCBX_MAX_PRIO 8

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/**

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* struct cee_pg - CEE Priority-Group managed object

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* @willing: willing bit in the PG tlv

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* @error: error bit in the PG tlv

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* @pg_en: enable bit of the PG feature

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* @tcs_supported: number of traffic classes supported

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* @pg_bw: bandwidth percentage for each priority group

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* @prio_pg: priority to PG mapping indexed by priority

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struct cee_pg {

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__u8 willing;

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__u8 error;

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__u8 pg_en;

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__u8 tcs_supported;

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__u8 pg_bw[CEE_DCBX_MAX_PGS];

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__u8 prio_pg[CEE_DCBX_MAX_PGS];

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};

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/**

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* struct cee_pfc - CEE PFC managed object

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* @willing: willing bit in the PFC tlv

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* @error: error bit in the PFC tlv

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* @pfc_en: bitmap indicating pfc enabled traffic classes

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* @tcs_supported: number of traffic classes supported

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struct cee_pfc {

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__u8 willing;

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__u8 error;

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__u8 pfc_en;

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__u8 tcs_supported;

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};

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/* IEEE 802.1Qaz std supported values */

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#define IEEE_8021QAZ_APP_SEL_ETHERTYPE 1

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#define IEEE_8021QAZ_APP_SEL_STREAM 2

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#define IEEE_8021QAZ_APP_SEL_DGRAM 3

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#define IEEE_8021QAZ_APP_SEL_ANY 4

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#define IEEE_8021QAZ_APP_SEL_DSCP 5

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/* This structure contains the IEEE 802.1Qaz APP managed object. This

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* object is also used for the CEE std as well.

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* @selector: protocol identifier type

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* @protocol: protocol of type indicated

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* @priority: 3-bit unsigned integer indicating priority for IEEE

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* 8-bit 802.1p user priority bitmap for CEE

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* ----

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* Selector field values for IEEE 802.1Qaz

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* 0 Reserved

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* 1 Ethertype

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* 2 Well known port number over TCP or SCTP

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* 3 Well known port number over UDP or DCCP

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* 4 Well known port number over TCP, SCTP, UDP, or DCCP

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* 5-7 Reserved

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* Selector field values for CEE

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* 0 Ethertype

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* 1 Well known port number over TCP or UDP

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* 2-3 Reserved

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struct dcb_app {

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__u8 selector;

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__u8 priority;

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__u16 protocol;

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};

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/**

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* struct dcb_peer_app_info - APP feature information sent by the peer

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* @willing: willing bit in the peer APP tlv

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* @error: error bit in the peer APP tlv

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* In addition to this information the full peer APP tlv also contains

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* a table of 'app_count' APP objects defined above.

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struct dcb_peer_app_info {

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__u8 willing;

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__u8 error;

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};

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struct dcbmsg {

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__u8 dcb_family;

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__u8 cmd;

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__u16 dcb_pad;

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};

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/**

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* enum dcbnl_commands - supported DCB commands

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* @DCB_CMD_UNDEFINED: unspecified command to catch errors

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* @DCB_CMD_GSTATE: request the state of DCB in the device

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* @DCB_CMD_SSTATE: set the state of DCB in the device

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* @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx

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* @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx

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* @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx

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* @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx

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* @DCB_CMD_PFC_GCFG: request the priority flow control configuration

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* @DCB_CMD_PFC_SCFG: set the priority flow control configuration

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* @DCB_CMD_SET_ALL: apply all changes to the underlying device

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* @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying

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* device. Only useful when using bonding.

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* @DCB_CMD_GCAP: request the DCB capabilities of the device

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* @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported

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* @DCB_CMD_SNUMTCS: set the number of traffic classes

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* @DCB_CMD_GBCN: set backward congestion notification configuration

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* @DCB_CMD_SBCN: get backward congestion notification configration.

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* @DCB_CMD_GAPP: get application protocol configuration

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* @DCB_CMD_SAPP: set application protocol configuration

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* @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration

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* @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration

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* @DCB_CMD_GDCBX: get DCBX engine configuration

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* @DCB_CMD_SDCBX: set DCBX engine configuration

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* @DCB_CMD_GFEATCFG: get DCBX features flags

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* @DCB_CMD_SFEATCFG: set DCBX features negotiation flags

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* @DCB_CMD_CEE_GET: get CEE aggregated configuration

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* @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration

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enum dcbnl_commands {

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DCB_CMD_UNDEFINED,

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DCB_CMD_GSTATE,

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DCB_CMD_SSTATE,

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DCB_CMD_PGTX_GCFG,

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DCB_CMD_PGTX_SCFG,

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DCB_CMD_PGRX_GCFG,

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DCB_CMD_PGRX_SCFG,

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DCB_CMD_PFC_GCFG,

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DCB_CMD_PFC_SCFG,

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DCB_CMD_SET_ALL,

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DCB_CMD_GPERM_HWADDR,

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DCB_CMD_GCAP,

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DCB_CMD_GNUMTCS,

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DCB_CMD_SNUMTCS,

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DCB_CMD_PFC_GSTATE,

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DCB_CMD_PFC_SSTATE,

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DCB_CMD_BCN_GCFG,

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DCB_CMD_BCN_SCFG,

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DCB_CMD_GAPP,

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DCB_CMD_SAPP,

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DCB_CMD_IEEE_SET,

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DCB_CMD_IEEE_GET,

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DCB_CMD_GDCBX,

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DCB_CMD_SDCBX,

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DCB_CMD_GFEATCFG,

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DCB_CMD_SFEATCFG,

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DCB_CMD_CEE_GET,

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DCB_CMD_IEEE_DEL,

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__DCB_CMD_ENUM_MAX,

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DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,

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};

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/**

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* enum dcbnl_attrs - DCB top-level netlink attributes

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* @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors

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* @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)

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* @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)

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* @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)

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* @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)

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* @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)

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* @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)

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* @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)

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* @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)

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* @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)

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* @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)

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* @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)

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* @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)

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* @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)

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* @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)

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* @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)

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enum dcbnl_attrs {

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DCB_ATTR_UNDEFINED,

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DCB_ATTR_IFNAME,

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DCB_ATTR_STATE,

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DCB_ATTR_PFC_STATE,

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DCB_ATTR_PFC_CFG,

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DCB_ATTR_NUM_TC,

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DCB_ATTR_PG_CFG,

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DCB_ATTR_SET_ALL,

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DCB_ATTR_PERM_HWADDR,

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DCB_ATTR_CAP,

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DCB_ATTR_NUMTCS,

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DCB_ATTR_BCN,

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DCB_ATTR_APP,

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/* IEEE std attributes */

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DCB_ATTR_IEEE,

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DCB_ATTR_DCBX,

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DCB_ATTR_FEATCFG,

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/* CEE nested attributes */

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DCB_ATTR_CEE,

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__DCB_ATTR_ENUM_MAX,

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DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,

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};

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/**

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* enum ieee_attrs - IEEE 802.1Qaz get/set attributes

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* @DCB_ATTR_IEEE_UNSPEC: unspecified

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* @DCB_ATTR_IEEE_ETS: negotiated ETS configuration

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* @DCB_ATTR_IEEE_PFC: negotiated PFC configuration

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* @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration

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* @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only

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* @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only

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* @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only

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enum ieee_attrs {

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DCB_ATTR_IEEE_UNSPEC,

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DCB_ATTR_IEEE_ETS,

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DCB_ATTR_IEEE_PFC,

[410] Fix | Delete

DCB_ATTR_IEEE_APP_TABLE,

[411] Fix | Delete

DCB_ATTR_IEEE_PEER_ETS,

[412] Fix | Delete

DCB_ATTR_IEEE_PEER_PFC,

[413] Fix | Delete

DCB_ATTR_IEEE_PEER_APP,

[414] Fix | Delete

DCB_ATTR_IEEE_MAXRATE,

[415] Fix | Delete

DCB_ATTR_IEEE_QCN,

[416] Fix | Delete

DCB_ATTR_IEEE_QCN_STATS,

[417] Fix | Delete

DCB_ATTR_DCB_BUFFER,

[418] Fix | Delete

__DCB_ATTR_IEEE_MAX

[419] Fix | Delete

};

[420] Fix | Delete

#define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)

[421] Fix | Delete

[422] Fix | Delete

enum ieee_attrs_app {

[423] Fix | Delete

DCB_ATTR_IEEE_APP_UNSPEC,

[424] Fix | Delete

DCB_ATTR_IEEE_APP,

[425] Fix | Delete

__DCB_ATTR_IEEE_APP_MAX

[426] Fix | Delete

};

[427] Fix | Delete

#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)

[428] Fix | Delete

[429] Fix | Delete

/**

[430] Fix | Delete

* enum cee_attrs - CEE DCBX get attributes.

[431] Fix | Delete

[432] Fix | Delete

* @DCB_ATTR_CEE_UNSPEC: unspecified

[433] Fix | Delete

* @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only

[434] Fix | Delete

* @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only

[435] Fix | Delete

* @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only

[436] Fix | Delete

* @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)

[437] Fix | Delete

* @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)

[438] Fix | Delete

* @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)

[439] Fix | Delete

* @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)

[440] Fix | Delete

* @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)

[441] Fix | Delete

[442] Fix | Delete

* An aggregated collection of the cee std negotiated parameters.

[443] Fix | Delete

[444] Fix | Delete

enum cee_attrs {

[445] Fix | Delete

DCB_ATTR_CEE_UNSPEC,

[446] Fix | Delete

DCB_ATTR_CEE_PEER_PG,

[447] Fix | Delete

DCB_ATTR_CEE_PEER_PFC,

[448] Fix | Delete

DCB_ATTR_CEE_PEER_APP_TABLE,

[449] Fix | Delete

DCB_ATTR_CEE_TX_PG,

[450] Fix | Delete

DCB_ATTR_CEE_RX_PG,

[451] Fix | Delete

DCB_ATTR_CEE_PFC,

[452] Fix | Delete

DCB_ATTR_CEE_APP_TABLE,

[453] Fix | Delete

DCB_ATTR_CEE_FEAT,

[454] Fix | Delete

__DCB_ATTR_CEE_MAX

[455] Fix | Delete

};

[456] Fix | Delete

#define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)

[457] Fix | Delete

[458] Fix | Delete

enum peer_app_attr {

[459] Fix | Delete

DCB_ATTR_CEE_PEER_APP_UNSPEC,

[460] Fix | Delete

DCB_ATTR_CEE_PEER_APP_INFO,

[461] Fix | Delete

DCB_ATTR_CEE_PEER_APP,

[462] Fix | Delete

__DCB_ATTR_CEE_PEER_APP_MAX

[463] Fix | Delete

};

[464] Fix | Delete

#define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)

[465] Fix | Delete

[466] Fix | Delete

enum cee_attrs_app {

[467] Fix | Delete

DCB_ATTR_CEE_APP_UNSPEC,

[468] Fix | Delete

DCB_ATTR_CEE_APP,

[469] Fix | Delete

__DCB_ATTR_CEE_APP_MAX

[470] Fix | Delete

};

[471] Fix | Delete

#define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)

[472] Fix | Delete

[473] Fix | Delete

/**

[474] Fix | Delete

* enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs

[475] Fix | Delete

[476] Fix | Delete

* @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors

[477] Fix | Delete

* @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)

[478] Fix | Delete

* @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)

[479] Fix | Delete

* @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)

[480] Fix | Delete

* @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)

[481] Fix | Delete

* @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)

[482] Fix | Delete

* @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)

[483] Fix | Delete

* @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)

[484] Fix | Delete

* @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)

[485] Fix | Delete

* @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined

[486] Fix | Delete

* @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)

[487] Fix | Delete

[488] Fix | Delete

[489] Fix | Delete

enum dcbnl_pfc_up_attrs {

[490] Fix | Delete

DCB_PFC_UP_ATTR_UNDEFINED,

[491] Fix | Delete

[492] Fix | Delete

DCB_PFC_UP_ATTR_0,

[493] Fix | Delete

DCB_PFC_UP_ATTR_1,

[494] Fix | Delete

DCB_PFC_UP_ATTR_2,

[495] Fix | Delete

DCB_PFC_UP_ATTR_3,

[496] Fix | Delete

DCB_PFC_UP_ATTR_4,

[497] Fix | Delete

DCB_PFC_UP_ATTR_5,

[498] Fix | Delete

DCB_PFC_UP_ATTR_6,

[499] Fix | Delete