9ab933ab2c
This patch adds application tlv handlers. Networking stacks
may use the application priority to set the skb priority of
their stack using the negoatiated dcbx priority.
This patch provides the dcb_{get|set}app() routines for the
stack to query these parameters. Notice lower layer drivers
can use the dcbnl_ops routines if additional handling is
needed. Perhaps in the firmware case for example
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
466 lines
15 KiB
C
466 lines
15 KiB
C
/*
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* Copyright (c) 2008, Intel Corporation.
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*
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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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*
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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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*
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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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*
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* Author: Lucy Liu <lucy.liu@intel.com>
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*/
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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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/* This structure contains the IEEE 802.1Qaz ETS managed object
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*
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* @willing: willing bit in ETS configuratin 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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*
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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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* ----
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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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*/
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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 the IEEE 802.1Qaz PFC managed object
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*
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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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*/
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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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/* 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. There is no difference
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* between the objects.
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*
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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
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*
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* ----
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* Selector field values
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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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*/
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struct dcb_app {
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__u8 selector;
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__u32 protocol;
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__u8 priority;
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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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*
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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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*/
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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_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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*
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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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*/
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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_ENUM_MAX,
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DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
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};
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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,
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DCB_ATTR_IEEE_APP_TABLE,
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__DCB_ATTR_IEEE_MAX
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};
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#define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
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enum ieee_attrs_app {
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DCB_ATTR_IEEE_APP_UNSPEC,
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DCB_ATTR_IEEE_APP,
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__DCB_ATTR_IEEE_APP_MAX
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};
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#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
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/**
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* enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
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*
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* @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
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* @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
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* @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
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* @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
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* @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
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* @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
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* @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
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* @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
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* @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
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* @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
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*
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*/
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enum dcbnl_pfc_up_attrs {
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DCB_PFC_UP_ATTR_UNDEFINED,
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DCB_PFC_UP_ATTR_0,
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DCB_PFC_UP_ATTR_1,
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DCB_PFC_UP_ATTR_2,
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DCB_PFC_UP_ATTR_3,
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DCB_PFC_UP_ATTR_4,
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DCB_PFC_UP_ATTR_5,
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DCB_PFC_UP_ATTR_6,
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DCB_PFC_UP_ATTR_7,
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DCB_PFC_UP_ATTR_ALL,
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__DCB_PFC_UP_ATTR_ENUM_MAX,
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DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_pg_attrs - DCB Priority Group attributes
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*
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* @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
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* @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
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* @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
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* @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
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*
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*/
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enum dcbnl_pg_attrs {
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DCB_PG_ATTR_UNDEFINED,
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DCB_PG_ATTR_TC_0,
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DCB_PG_ATTR_TC_1,
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DCB_PG_ATTR_TC_2,
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DCB_PG_ATTR_TC_3,
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DCB_PG_ATTR_TC_4,
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DCB_PG_ATTR_TC_5,
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DCB_PG_ATTR_TC_6,
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DCB_PG_ATTR_TC_7,
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DCB_PG_ATTR_TC_MAX,
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DCB_PG_ATTR_TC_ALL,
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DCB_PG_ATTR_BW_ID_0,
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DCB_PG_ATTR_BW_ID_1,
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DCB_PG_ATTR_BW_ID_2,
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DCB_PG_ATTR_BW_ID_3,
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DCB_PG_ATTR_BW_ID_4,
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DCB_PG_ATTR_BW_ID_5,
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DCB_PG_ATTR_BW_ID_6,
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DCB_PG_ATTR_BW_ID_7,
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DCB_PG_ATTR_BW_ID_MAX,
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DCB_PG_ATTR_BW_ID_ALL,
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__DCB_PG_ATTR_ENUM_MAX,
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DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_tc_attrs - DCB Traffic Class attributes
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*
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* @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
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* @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
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* Valid values are: 0-7
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* @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
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* Some devices may not support changing the
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* user priority map of a TC.
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* @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
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* 0 - none
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* 1 - group strict
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* 2 - link strict
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* @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
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* not configured to use link strict priority,
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* this is the percentage of bandwidth of the
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* priority group this traffic class belongs to
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* @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
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*
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*/
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enum dcbnl_tc_attrs {
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DCB_TC_ATTR_PARAM_UNDEFINED,
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DCB_TC_ATTR_PARAM_PGID,
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DCB_TC_ATTR_PARAM_UP_MAPPING,
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DCB_TC_ATTR_PARAM_STRICT_PRIO,
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DCB_TC_ATTR_PARAM_BW_PCT,
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DCB_TC_ATTR_PARAM_ALL,
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__DCB_TC_ATTR_PARAM_ENUM_MAX,
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DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_cap_attrs - DCB Capability attributes
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*
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* @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
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* @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
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* @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
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* @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
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* traffic class mapping
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* @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
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* number of traffic classes the device
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* can be configured to use for Priority Groups
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* @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
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* number of traffic classes the device can be
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* configured to use for Priority Flow Control
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* @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
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* @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
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* Notification
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*/
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enum dcbnl_cap_attrs {
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DCB_CAP_ATTR_UNDEFINED,
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DCB_CAP_ATTR_ALL,
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DCB_CAP_ATTR_PG,
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DCB_CAP_ATTR_PFC,
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DCB_CAP_ATTR_UP2TC,
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DCB_CAP_ATTR_PG_TCS,
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DCB_CAP_ATTR_PFC_TCS,
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DCB_CAP_ATTR_GSP,
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DCB_CAP_ATTR_BCN,
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__DCB_CAP_ATTR_ENUM_MAX,
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DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_numtcs_attrs - number of traffic classes
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*
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* @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
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* @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
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* priority groups
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* @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
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* support priority flow control
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*/
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enum dcbnl_numtcs_attrs {
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DCB_NUMTCS_ATTR_UNDEFINED,
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DCB_NUMTCS_ATTR_ALL,
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DCB_NUMTCS_ATTR_PG,
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DCB_NUMTCS_ATTR_PFC,
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__DCB_NUMTCS_ATTR_ENUM_MAX,
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DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
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};
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enum dcbnl_bcn_attrs{
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DCB_BCN_ATTR_UNDEFINED = 0,
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DCB_BCN_ATTR_RP_0,
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DCB_BCN_ATTR_RP_1,
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DCB_BCN_ATTR_RP_2,
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DCB_BCN_ATTR_RP_3,
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DCB_BCN_ATTR_RP_4,
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|
DCB_BCN_ATTR_RP_5,
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|
DCB_BCN_ATTR_RP_6,
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|
DCB_BCN_ATTR_RP_7,
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DCB_BCN_ATTR_RP_ALL,
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|
|
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DCB_BCN_ATTR_BCNA_0,
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|
DCB_BCN_ATTR_BCNA_1,
|
|
DCB_BCN_ATTR_ALPHA,
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|
DCB_BCN_ATTR_BETA,
|
|
DCB_BCN_ATTR_GD,
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|
DCB_BCN_ATTR_GI,
|
|
DCB_BCN_ATTR_TMAX,
|
|
DCB_BCN_ATTR_TD,
|
|
DCB_BCN_ATTR_RMIN,
|
|
DCB_BCN_ATTR_W,
|
|
DCB_BCN_ATTR_RD,
|
|
DCB_BCN_ATTR_RU,
|
|
DCB_BCN_ATTR_WRTT,
|
|
DCB_BCN_ATTR_RI,
|
|
DCB_BCN_ATTR_C,
|
|
DCB_BCN_ATTR_ALL,
|
|
|
|
__DCB_BCN_ATTR_ENUM_MAX,
|
|
DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
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|
};
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|
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|
/**
|
|
* enum dcb_general_attr_values - general DCB attribute values
|
|
*
|
|
* @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
|
|
*
|
|
*/
|
|
enum dcb_general_attr_values {
|
|
DCB_ATTR_VALUE_UNDEFINED = 0xff
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|
};
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|
|
|
#define DCB_APP_IDTYPE_ETHTYPE 0x00
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|
#define DCB_APP_IDTYPE_PORTNUM 0x01
|
|
enum dcbnl_app_attrs {
|
|
DCB_APP_ATTR_UNDEFINED,
|
|
|
|
DCB_APP_ATTR_IDTYPE,
|
|
DCB_APP_ATTR_ID,
|
|
DCB_APP_ATTR_PRIORITY,
|
|
|
|
__DCB_APP_ATTR_ENUM_MAX,
|
|
DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
|
|
};
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|
|
|
#endif /* __LINUX_DCBNL_H__ */
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