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wifi: ath12k: correctly handle mcast packets for clients

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Currently, RX is_mcbc bit is set for packets sent from client as
destination address (DA) is multicast/broadcast address, but packets
are actually unicast as receiver address (RA) is not multicast address.
Hence, packets are not handled properly due to this is_mcbc bit.

Therefore, reset the is_mcbc bit if interface type is AP.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250411061523.859387-3-quic_sarishar@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Sarika Sharma 2025-04-11 11:45:23 +05:30 committed by Jeff Johnson
parent cb7433cc5c
commit 4541b0c8c3
3 changed files with 11 additions and 2 deletions
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5
drivers/net/wireless/ath/ath12k/dp_rx.c
View File

@ -2282,6 +2282,11 @@ static void ath12k_dp_rx_h_mpdu(struct ath12k *ar,
spin_lock_bh(&ar->ab->base_lock);
peer = ath12k_dp_rx_h_find_peer(ar->ab, msdu, rx_info);
if (peer) {
/* resetting mcbc bit because mcbc packets are unicast
* packets only for AP as STA sends unicast packets.
*/
rxcb->is_mcbc = rxcb->is_mcbc && !peer->ucast_ra_only;
if (rxcb->is_mcbc)
enctype = peer->sec_type_grp;
else

5
drivers/net/wireless/ath/ath12k/peer.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2022, 2024-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include "core.h"
@ -383,6 +383,9 @@ int ath12k_peer_create(struct ath12k *ar, struct ath12k_link_vif *arvif,
arvif->ast_idx = peer->hw_peer_id;
}
if (vif->type == NL80211_IFTYPE_AP)
peer->ucast_ra_only = true;
if (sta) {
ahsta = ath12k_sta_to_ahsta(sta);
arsta = wiphy_dereference(ath12k_ar_to_hw(ar)->wiphy,

3
drivers/net/wireless/ath/ath12k/peer.h
View File

@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef ATH12K_PEER_H
@ -62,6 +62,7 @@ struct ath12k_peer {
/* for reference to ath12k_link_sta */
u8 link_id;
bool ucast_ra_only;
};
struct ath12k_ml_peer {