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From:   Lingbo Kong <quic_lingbok@quicinc.com>
To:     <ath12k@lists.infradead.org>
CC:     <linux-wireless@vger.kernel.org>, <lingbok@qti.qualcomm.com>
Subject: [PATCH] wifi: ath12k: fix the issue that the multicast/broadcast indicator is not read correctly for WCN7850
Date:   Sat, 18 Nov 2023 08:45:38 -0500
Message-ID: <20231118134538.19545-1-quic_lingbok@quicinc.com>
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We observe some packets are discarded in ieee80211_rx_handlers_result
function for WCN7850. This is because the way to get multicast/broadcast
indicator with RX_MSDU_END_INFO5_DA_IS_MCBC & info5 is incorrect. It should
use RX_MSDU_END_INFO13_MCAST_BCAST & info13 to get multicast/broadcast
indicator.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Lingbo Kong <quic_lingbok@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/hal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/hal.c b/drivers/net/wireless/ath/ath12k/hal.c
index eca86fc25a60..4966887e312b 100644
--- a/drivers/net/wireless/ath/ath12k/hal.c
+++ b/drivers/net/wireless/ath/ath12k/hal.c
@@ -889,8 +889,8 @@ static u8 *ath12k_hw_wcn7850_rx_desc_mpdu_start_addr2(struct hal_rx_desc *desc)
 
 static bool ath12k_hw_wcn7850_rx_desc_is_da_mcbc(struct hal_rx_desc *desc)
 {
-	return __le16_to_cpu(desc->u.wcn7850.msdu_end.info5) &
-	       RX_MSDU_END_INFO5_DA_IS_MCBC;
+	return __le16_to_cpu(desc->u.wcn7850.msdu_end.info13) &
+	       RX_MSDU_END_INFO13_MCAST_BCAST;
 }
 
 static void ath12k_hw_wcn7850_rx_desc_get_dot11_hdr(struct hal_rx_desc *desc,

base-commit: 23c5ea6737e45d5a6342c21884400e7697d7c342
-- 
2.34.1