From 392b6b76fd3940ba9978ecd8fe30d9ed979d3bf7 Mon Sep 17 00:00:00 2001 From: Harshitha Prem Date: Mon, 20 Mar 2023 14:34:00 +0530 Subject: [PATCH] wifi: ath12k: fix incorrect handling of AMSDU frames When a data traffic with size greater than 1500 is initiated, say size 65500, it is sent as a set of AMSDUs (3 MSDUs) in a MPDU. These AMSDUs are incorrectly classified as multicast and peer id gets changed, except for first msdu, because of mcast_bcast bit derived from rx_desc for every msdu received. The mcast_bcast bit in rx_desc is only valid for first msdu. Hence, add changes to derive mcast_bcast only if it is a first msdu. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Harshitha Prem Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230320090400.30027-1-quic_hprem@quicinc.com --- drivers/net/wireless/ath/ath12k/dp_rx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index b368494..e78478a 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -196,7 +196,8 @@ static void ath12k_dp_rxdesc_set_msdu_len(struct ath12k_base *ab, static bool ath12k_dp_rx_h_is_mcbc(struct ath12k_base *ab, struct hal_rx_desc *desc) { - return ab->hw_params->hal_ops->rx_desc_is_mcbc(desc); + return (ath12k_dp_rx_h_first_msdu(ab, desc) && + ab->hw_params->hal_ops->rx_desc_is_mcbc(desc)); } static bool ath12k_dp_rxdesc_mac_addr2_valid(struct ath12k_base *ab, -- 2.7.4