From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
This bug appears to have been added between 4.0 (which works for us),
and 4.4, which does not work.
I think this is because the tx-offchannel logic gets in a loop when
ath10k_mac_tx_frm_has_freq(ar) is false, so pkt is never actually
sent to the firmware for transmit.
This patch fixes the problem on 4.9 for me, and now HS20 clients
can work again with my firmware.
Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/mac.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index c45ca04..f0a7864 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4101,7 +4101,7 @@ static int ath10k_mac_tx(struct ath10k *ar,
struct ieee80211_sta *sta,
enum ath10k_hw_txrx_mode txmode,
enum ath10k_mac_tx_path txpath,
- struct sk_buff *skb)
+ struct sk_buff *skb, bool noque_offchan)
{
struct ieee80211_hw *hw = ar->hw;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -4134,10 +4134,10 @@ static int ath10k_mac_tx(struct ath10k *ar,
}
}
- if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
+ if ((!noque_offchan) && info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
if (!ath10k_mac_tx_frm_has_freq(ar)) {
- ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %pK\n",
- skb);
+ ath10k_dbg(ar, ATH10K_DBG_MAC, "no-tx-frm-has-freq: queued offchannel skb %pK, len: %d\n",
+ skb, skb->len);
skb_queue_tail(&ar->offchan_tx_queue, skb);
ieee80211_queue_work(hw, &ar->offchan_tx_work);
@@ -4198,8 +4198,8 @@ void ath10k_offchan_tx_work(struct work_struct *work)
mutex_lock(&ar->conf_mutex);
- ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %pK\n",
- skb);
+ ath10k_dbg(ar, ATH10K_DBG_MAC, "offchan-tx-work: mac offchannel skb %pK len: %d\n",
+ skb, skb->len);
hdr = (struct ieee80211_hdr *)skb->data;
peer_addr = ieee80211_get_DA(hdr);
@@ -4245,7 +4245,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
- ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
+ ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb, true);
if (ret) {
ath10k_warn(ar, "failed to transmit offchannel frame: %d\n",
ret);
@@ -4255,8 +4255,8 @@ void ath10k_offchan_tx_work(struct work_struct *work)
time_left =
wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
if (time_left == 0)
- ath10k_warn(ar, "timed out waiting for offchannel skb %pK\n",
- skb);
+ ath10k_warn(ar, "timed out waiting for offchannel skb %pK, len: %d\n",
+ skb, skb->len);
if (!peer && tmp_peer_created) {
ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
@@ -4513,7 +4513,7 @@ int ath10k_mac_tx_push_txq(struct ieee80211_hw *hw,
spin_unlock_bh(&ar->htt.tx_lock);
}
- ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
+ ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb, false);
if (unlikely(ret)) {
ath10k_warn(ar, "failed to push frame: %d\n", ret);
@@ -4802,7 +4802,7 @@ static void ath10k_mac_op_tx(struct ieee80211_hw *hw,
spin_unlock_bh(&ar->htt.tx_lock);
}
- ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
+ ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb, false);
if (ret) {
ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
if (is_htt) {
--
2.4.11
