wifi: ath12k: Report proper tx completion status to mac80211

[ Upstream commit d2d9c9b8de725e1006d3aa3d18678a732f5d3584 ]

Currently Tx completion for few exception packets are received from
firmware and the tx status updated to mac80211. The tx status values of
HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP and HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL
are considered as tx failure and reported as tx failure to mac80211.
But these failure status is due to internal firmware tx drop and these
packets were not tried to transmit in the air.
In case of mesh this invalid tx status report might trigger mpath broken
issue due to increase in mpath fail average.
So do not report these tx status as tx failure instead free the skb
by calling ieee80211_free_txskb(), and that will be accounted as dropped
frame.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

Signed-off-by: Vinith Kumar R <quic_vinithku@quicinc.com>
Signed-off-by: Tamizh Chelvam Raja <quic_tamizhr@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241122173432.2064858-1-quic_tamizhr@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.c b/drivers/net/wireless/ath/ath12k/dp_tx.c
index 1fffabaca527a4f7a8f709290b765d443f899ad1..75608ae027afe0d22600f2e5a75eac81018a1e43 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.c
@@ -560,13 +560,13 @@ ath12k_dp_tx_process_htt_tx_complete(struct ath12k_base *ab,
 
        switch (wbm_status) {
        case HAL_WBM_REL_HTT_TX_COMP_STATUS_OK:
-       case HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP:
-       case HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL:
                ts.acked = (wbm_status == HAL_WBM_REL_HTT_TX_COMP_STATUS_OK);
                ts.ack_rssi = le32_get_bits(status_desc->info2,
                                            HTT_TX_WBM_COMP_INFO2_ACK_RSSI);
                ath12k_dp_tx_htt_tx_complete_buf(ab, msdu, tx_ring, &ts);
                break;
+       case HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP:
+       case HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL:
        case HAL_WBM_REL_HTT_TX_COMP_STATUS_REINJ:
        case HAL_WBM_REL_HTT_TX_COMP_STATUS_INSPECT:
                ath12k_dp_tx_free_txbuf(ab, msdu, mac_id, tx_ring);