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Commit f0bd8c22 authored by Mahesh KKV's avatar Mahesh KKV
Browse files

wifi: Add TID to link mapping support 

TID-to-link mapping, which is introduced in IEEE 802.11be standard
allows an Access Point and a Station to determine how uplink and
downlink QoS traffic corresponding to TID values between 0 and 7 will be
assigned to the setup multi links.

This commit adds an interface to TID-to-link mapping in existing MloLink
AIDL.

BUG: 247119055
Test: mm -j
Change-Id: I3ef6e37d9857606020a8e0580c82ca8ab1b8bf82
parent f3262f97

wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/MloLink.aidl

+2 −0
Original line number Diff line number Diff line
@@ -36,4 +36,6 @@ package android.hardware.wifi.supplicant; 
parcelable MloLink {

  byte linkId;

  byte[] staLinkMacAddress;

  byte tidsUplinkMap;

  byte tidsDownlinkMap;

}

wifi/supplicant/aidl/android/hardware/wifi/supplicant/MloLink.aidl

+28 −0
Original line number Diff line number Diff line
@@ -30,4 +30,32 @@ parcelable MloLink { 
     * STA Link MAC Address

     */

    byte[/* 6 */] staLinkMacAddress;

    /**

     * Bitset where each bit indicates TID mapped to this link in uplink and

     * downlink direction.

     *

     * Traffic Identifier (TID) is an identifier used to classify a packet. It

     * is represented as a four bit number identifying the QoS traffic within

     * MAC data service. There are 16 possible values for TID, out of only 8 are

     * practically used to identify differentiated services.

     *

     * A TID-to-link mapping indicates links on which frames belonging to each

     * TID can be exchanged. IEEE 802.11be draft 2.0 defines the mapping for TID

     * values between 0 to 7 only. Once associated, an MLO link state is

     * considered as active if at least one TID is mapped to the link. Link

     * state is considered as idle if no TID is mapped to the link.

     *

     * TIDs can be mapped to uplink, downlink or both directions.

     * e.g.

     *  - TID 4 is mapped to this link in uplink direction, if bit 4 in

     *    MloLink#tids_uplink_map is set.

     *  - TID 2 is mapped to both directions for this link, if bit 2 of both

     *    MloLink#tids_uplink_map and MloLink#tids_downlink_map are set.

     *

     * In case of default link mapping, tids_uplink_map and tids_downlink_map

     * is set to 0xFF for all the links.

     *

     */

    byte tidsUplinkMap;

    byte tidsDownlinkMap;

}