diff options
Diffstat (limited to 'package/mac80211/patches/543-ath9k_move_seqno_alloc.patch')
| -rw-r--r-- | package/mac80211/patches/543-ath9k_move_seqno_alloc.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/package/mac80211/patches/543-ath9k_move_seqno_alloc.patch b/package/mac80211/patches/543-ath9k_move_seqno_alloc.patch new file mode 100644 index 000000000..8de5fd27a --- /dev/null +++ b/package/mac80211/patches/543-ath9k_move_seqno_alloc.patch @@ -0,0 +1,119 @@ +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -1717,17 +1717,19 @@ static void ath_buf_set_rate(struct ath_ + + } + +-static struct ath_buf *ath_tx_setup_buffer(struct ieee80211_hw *hw, ++static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, + struct ath_txq *txq, ++ struct ath_atx_tid *tid, + struct sk_buff *skb) + { +- struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_frame_info *fi = get_frame_info(skb); ++ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ath_buf *bf; + struct ath_desc *ds; + int frm_type; ++ u16 seqno; + + bf = ath_tx_get_buffer(sc); + if (!bf) { +@@ -1737,6 +1739,13 @@ static struct ath_buf *ath_tx_setup_buff + + ATH_TXBUF_RESET(bf); + ++ if (tid) { ++ seqno = tid->seq_next; ++ hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT); ++ INCR(tid->seq_next, IEEE80211_SEQ_MAX); ++ bf->bf_state.seqno = seqno; ++ } ++ + bf->bf_flags = setup_tx_flags(skb); + bf->bf_mpdu = skb; + +@@ -1773,15 +1782,15 @@ static struct ath_buf *ath_tx_setup_buff + } + + /* FIXME: tx power */ +-static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, ++static int ath_tx_start_dma(struct ath_softc *sc, struct sk_buff *skb, + struct ath_tx_control *txctl) + { +- struct sk_buff *skb = bf->bf_mpdu; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct list_head bf_head; + struct ath_atx_tid *tid = NULL; +- u16 seqno; ++ struct ath_buf *bf; ++ int ret = 0; + u8 tidno; + + spin_lock_bh(&txctl->txq->axq_lock); +@@ -1791,15 +1800,15 @@ static void ath_tx_start_dma(struct ath_ + IEEE80211_QOS_CTL_TID_MASK; + tid = ATH_AN_2_TID(txctl->an, tidno); + +- seqno = tid->seq_next; +- hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT); +- INCR(tid->seq_next, IEEE80211_SEQ_MAX); +- +- bf->bf_state.seqno = seqno; +- + WARN_ON(tid->ac->txq != txctl->txq); + } + ++ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb); ++ if (unlikely(!bf)) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ + if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && tid) { + /* + * Try aggregation if it's a unicast data frame +@@ -1825,7 +1834,9 @@ static void ath_tx_start_dma(struct ath_ + ath_tx_send_normal(sc, txctl->txq, tid, &bf_head); + } + ++out: + spin_unlock_bh(&txctl->txq->axq_lock); ++ return ret; + } + + /* Upon failure caller should free skb */ +@@ -1838,7 +1849,6 @@ int ath_tx_start(struct ieee80211_hw *hw + struct ieee80211_vif *vif = info->control.vif; + struct ath_softc *sc = hw->priv; + struct ath_txq *txq = txctl->txq; +- struct ath_buf *bf; + int padpos, padsize; + int frmlen = skb->len + FCS_LEN; + int q; +@@ -1885,10 +1895,6 @@ int ath_tx_start(struct ieee80211_hw *hw + * info are no longer valid (overwritten by the ath_frame_info data. + */ + +- bf = ath_tx_setup_buffer(hw, txctl->txq, skb); +- if (unlikely(!bf)) +- return -ENOMEM; +- + q = skb_get_queue_mapping(skb); + spin_lock_bh(&txq->axq_lock); + if (txq == sc->tx.txq_map[q] && +@@ -1898,9 +1904,7 @@ int ath_tx_start(struct ieee80211_hw *hw + } + spin_unlock_bh(&txq->axq_lock); + +- ath_tx_start_dma(sc, bf, txctl); +- +- return 0; ++ return ath_tx_start_dma(sc, skb, txctl); + } + + /*****************/ |