This is a note to let you know that I've just added the patch titled
wifi: ath11k: fix tx status reporting in encap offload mode
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-ath11k-fix-tx-status-reporting-in-encap-offload.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9bbadbf7eb4631b635935bc15b3868a93e287505
Author: Pradeep Kumar Chitrapu <quic_pradeepc@xxxxxxxxxxx>
Date: Mon Apr 17 13:35:02 2023 +0300
wifi: ath11k: fix tx status reporting in encap offload mode
[ Upstream commit 6257c702264c44d74c6b71f0c62a7665da2dc356 ]
ieee80211_tx_status() treats packets in 802.11 frame format and
tries to extract sta address from packet header. When tx encap
offload is enabled, this becomes invalid operation. Hence, switch
to using ieee80211_tx_status_ext() after filling in station
address for handling both 802.11 and 802.3 frames.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230403195738.25367-2-quic_pradeepc@xxxxxxxxxxx
Stable-dep-of: 29d15589f084 ("wifi: ath11k: Cleanup mac80211 references on failure during tx_complete")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ath/ath11k/dp.h b/drivers/net/wireless/ath/ath11k/dp.h
index be9eafc872b3b..232fd2e638bf6 100644
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -303,12 +303,16 @@ struct ath11k_dp {
#define HTT_TX_WBM_COMP_STATUS_OFFSET 8
+#define HTT_INVALID_PEER_ID 0xffff
+
/* HTT tx completion is overlaid in wbm_release_ring */
#define HTT_TX_WBM_COMP_INFO0_STATUS GENMASK(12, 9)
#define HTT_TX_WBM_COMP_INFO0_REINJECT_REASON GENMASK(16, 13)
#define HTT_TX_WBM_COMP_INFO0_REINJECT_REASON GENMASK(16, 13)
#define HTT_TX_WBM_COMP_INFO1_ACK_RSSI GENMASK(31, 24)
+#define HTT_TX_WBM_COMP_INFO2_SW_PEER_ID GENMASK(15, 0)
+#define HTT_TX_WBM_COMP_INFO2_VALID BIT(21)
struct htt_tx_wbm_completion {
u32 info0;
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 8afbba2369354..08a28464eb7a9 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -316,10 +316,12 @@ ath11k_dp_tx_htt_tx_complete_buf(struct ath11k_base *ab,
struct dp_tx_ring *tx_ring,
struct ath11k_dp_htt_wbm_tx_status *ts)
{
+ struct ieee80211_tx_status status = { 0 };
struct sk_buff *msdu;
struct ieee80211_tx_info *info;
struct ath11k_skb_cb *skb_cb;
struct ath11k *ar;
+ struct ath11k_peer *peer;
spin_lock(&tx_ring->tx_idr_lock);
msdu = idr_remove(&tx_ring->txbuf_idr, ts->msdu_id);
@@ -341,6 +343,11 @@ ath11k_dp_tx_htt_tx_complete_buf(struct ath11k_base *ab,
dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
+ if (!skb_cb->vif) {
+ dev_kfree_skb_any(msdu);
+ return;
+ }
+
memset(&info->status, 0, sizeof(info->status));
if (ts->acked) {
@@ -355,7 +362,23 @@ ath11k_dp_tx_htt_tx_complete_buf(struct ath11k_base *ab,
}
}
- ieee80211_tx_status(ar->hw, msdu);
+ spin_lock_bh(&ab->base_lock);
+ peer = ath11k_peer_find_by_id(ab, ts->peer_id);
+ if (!peer || !peer->sta) {
+ ath11k_dbg(ab, ATH11K_DBG_DATA,
+ "dp_tx: failed to find the peer with peer_id %d\n",
+ ts->peer_id);
+ spin_unlock_bh(&ab->base_lock);
+ dev_kfree_skb_any(msdu);
+ return;
+ }
+ spin_unlock_bh(&ab->base_lock);
+
+ status.sta = peer->sta;
+ status.info = info;
+ status.skb = msdu;
+
+ ieee80211_tx_status_ext(ar->hw, &status);
}
static void
@@ -379,7 +402,15 @@ ath11k_dp_tx_process_htt_tx_complete(struct ath11k_base *ab,
ts.msdu_id = msdu_id;
ts.ack_rssi = FIELD_GET(HTT_TX_WBM_COMP_INFO1_ACK_RSSI,
status_desc->info1);
+
+ if (FIELD_GET(HTT_TX_WBM_COMP_INFO2_VALID, status_desc->info2))
+ ts.peer_id = FIELD_GET(HTT_TX_WBM_COMP_INFO2_SW_PEER_ID,
+ status_desc->info2);
+ else
+ ts.peer_id = HTT_INVALID_PEER_ID;
+
ath11k_dp_tx_htt_tx_complete_buf(ab, tx_ring, &ts);
+
break;
case HAL_WBM_REL_HTT_TX_COMP_STATUS_REINJ:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_INSPECT:
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.h b/drivers/net/wireless/ath/ath11k/dp_tx.h
index e87d65bfbf06e..68a21ea9b9346 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.h
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.h
@@ -13,6 +13,7 @@ struct ath11k_dp_htt_wbm_tx_status {
u32 msdu_id;
bool acked;
int ack_rssi;
+ u16 peer_id;
};
void ath11k_dp_tx_update_txcompl(struct ath11k *ar, struct hal_tx_status *ts);
