diff options
Diffstat (limited to 'package/mac80211/patches/544-ath9k_defer_buffer_setup.patch')
| -rw-r--r-- | package/mac80211/patches/544-ath9k_defer_buffer_setup.patch | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/package/mac80211/patches/544-ath9k_defer_buffer_setup.patch b/package/mac80211/patches/544-ath9k_defer_buffer_setup.patch deleted file mode 100644 index d91ced0c5..000000000 --- a/package/mac80211/patches/544-ath9k_defer_buffer_setup.patch +++ /dev/null @@ -1,264 +0,0 @@ ---- a/drivers/net/wireless/ath/ath9k/xmit.c -+++ b/drivers/net/wireless/ath/ath9k/xmit.c -@@ -48,8 +48,9 @@ static u16 bits_per_symbol[][2] = { - #define IS_HT_RATE(_rate) ((_rate) & 0x80) - - static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq, -- struct ath_atx_tid *tid, -- struct list_head *bf_head); -+ struct ath_atx_tid *tid, struct sk_buff *skb); -+static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, -+ int tx_flags, struct ath_txq *txq); - static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf, - struct ath_txq *txq, struct list_head *bf_q, - struct ath_tx_status *ts, int txok, int sendbar); -@@ -61,6 +62,10 @@ static void ath_tx_rc_status(struct ath_ - int txok, bool update_rc); - static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid, - int seqno); -+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); - - enum { - MCS_HT20, -@@ -164,14 +169,13 @@ static void ath_tx_flush_tid(struct ath_ - fi = get_frame_info(skb); - bf = fi->bf; - -- list_add_tail(&bf->list, &bf_head); -- - spin_unlock_bh(&txq->axq_lock); -- if (fi->retries) { -+ if (bf && fi->retries) { -+ list_add_tail(&bf->list, &bf_head); - ath_tx_update_baw(sc, tid, bf->bf_state.seqno); - ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 1); - } else { -- ath_tx_send_normal(sc, txq, NULL, &bf_head); -+ ath_tx_send_normal(sc, txq, NULL, skb); - } - spin_lock_bh(&txq->axq_lock); - } -@@ -234,6 +238,13 @@ static void ath_tid_drain(struct ath_sof - fi = get_frame_info(skb); - bf = fi->bf; - -+ if (!bf) { -+ spin_unlock(&txq->axq_lock); -+ ath_tx_complete(sc, skb, ATH_TX_ERROR, txq); -+ spin_lock(&txq->axq_lock); -+ continue; -+ } -+ - list_add_tail(&bf->list, &bf_head); - - if (fi->retries) -@@ -760,8 +771,14 @@ static enum ATH_AGGR_STATUS ath_tx_form_ - skb = skb_peek(&tid->buf_q); - fi = get_frame_info(skb); - bf = fi->bf; -- seqno = bf->bf_state.seqno; -+ if (!fi->bf) -+ bf = ath_tx_setup_buffer(sc, txq, tid, skb); - -+ if (!bf) -+ continue; -+ -+ bf->bf_state.bf_type |= BUF_AMPDU; -+ seqno = bf->bf_state.seqno; - if (!bf_first) - bf_first = bf; - -@@ -1434,13 +1451,11 @@ static void ath_tx_txqaddbuf(struct ath_ - } - - static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid, -- struct ath_buf *bf, struct ath_tx_control *txctl) -+ struct sk_buff *skb, struct ath_tx_control *txctl) - { -- struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu); -+ struct ath_frame_info *fi = get_frame_info(skb); - struct list_head bf_head; -- u16 seqno = bf->bf_state.seqno; -- -- bf->bf_state.bf_type |= BUF_AMPDU; -+ struct ath_buf *bf; - - /* - * Do not queue to h/w when any of the following conditions is true: -@@ -1450,25 +1465,29 @@ static void ath_tx_send_ampdu(struct ath - * - h/w queue depth exceeds low water mark - */ - if (!skb_queue_empty(&tid->buf_q) || tid->paused || -- !BAW_WITHIN(tid->seq_start, tid->baw_size, seqno) || -+ !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) || - txctl->txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) { - /* - * Add this frame to software queue for scheduling later - * for aggregation. - */ - TX_STAT_INC(txctl->txq->axq_qnum, a_queued_sw); -- __skb_queue_tail(&tid->buf_q, bf->bf_mpdu); -+ __skb_queue_tail(&tid->buf_q, skb); - if (!txctl->an || !txctl->an->sleeping) - ath_tx_queue_tid(txctl->txq, tid); - return; - } - -+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb); -+ if (!bf) -+ return; -+ -+ bf->bf_state.bf_type |= BUF_AMPDU; - INIT_LIST_HEAD(&bf_head); - list_add(&bf->list, &bf_head); - - /* Add sub-frame to BAW */ -- if (!fi->retries) -- ath_tx_addto_baw(sc, tid, seqno); -+ ath_tx_addto_baw(sc, tid, bf->bf_state.seqno); - - /* Queue to h/w without aggregation */ - TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw); -@@ -1478,13 +1497,21 @@ static void ath_tx_send_ampdu(struct ath - } - - static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq, -- struct ath_atx_tid *tid, -- struct list_head *bf_head) -+ struct ath_atx_tid *tid, struct sk_buff *skb) - { -- struct ath_frame_info *fi; -+ struct ath_frame_info *fi = get_frame_info(skb); -+ struct list_head bf_head; - struct ath_buf *bf; - -- bf = list_first_entry(bf_head, struct ath_buf, list); -+ bf = fi->bf; -+ if (!bf) -+ bf = ath_tx_setup_buffer(sc, txq, tid, skb); -+ -+ if (!bf) -+ return; -+ -+ INIT_LIST_HEAD(&bf_head); -+ list_add_tail(&bf->list, &bf_head); - bf->bf_state.bf_type &= ~BUF_AMPDU; - - /* update starting sequence number for subsequent ADDBA request */ -@@ -1492,9 +1519,8 @@ static void ath_tx_send_normal(struct at - INCR(tid->seq_start, IEEE80211_SEQ_MAX); - - bf->bf_lastbf = bf; -- fi = get_frame_info(bf->bf_mpdu); - ath_buf_set_rate(sc, bf, fi->framelen); -- ath_tx_txqaddbuf(sc, txq, bf_head, false); -+ ath_tx_txqaddbuf(sc, txq, &bf_head, false); - TX_STAT_INC(txq->axq_qnum, queued); - } - -@@ -1717,6 +1743,10 @@ static void ath_buf_set_rate(struct ath_ - - } - -+/* -+ * Assign a descriptor (and sequence number if necessary, -+ * and map buffer for DMA. Frees skb on error -+ */ - static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, - struct ath_txq *txq, - struct ath_atx_tid *tid, -@@ -1734,7 +1764,7 @@ static struct ath_buf *ath_tx_setup_buff - bf = ath_tx_get_buffer(sc); - if (!bf) { - ath_dbg(common, ATH_DBG_XMIT, "TX buffers are full\n"); -- return NULL; -+ goto error; - } - - ATH_TXBUF_RESET(bf); -@@ -1757,7 +1787,7 @@ static struct ath_buf *ath_tx_setup_buff - ath_err(ath9k_hw_common(sc->sc_ah), - "dma_mapping_error() on TX\n"); - ath_tx_return_buffer(sc, bf); -- return NULL; -+ goto error; - } - - frm_type = get_hw_packet_type(skb); -@@ -1779,18 +1809,20 @@ static struct ath_buf *ath_tx_setup_buff - fi->bf = bf; - - return bf; -+ -+error: -+ dev_kfree_skb_any(skb); -+ return NULL; - } - - /* FIXME: tx power */ --static int ath_tx_start_dma(struct ath_softc *sc, struct sk_buff *skb, -+static void ath_tx_start_dma(struct ath_softc *sc, struct sk_buff *skb, - struct ath_tx_control *txctl) - { - 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; - struct ath_buf *bf; -- int ret = 0; - u8 tidno; - - spin_lock_bh(&txctl->txq->axq_lock); -@@ -1803,21 +1835,16 @@ static int ath_tx_start_dma(struct ath_s - 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 - * and the destination is HT capable. - */ -- ath_tx_send_ampdu(sc, tid, bf, txctl); -+ ath_tx_send_ampdu(sc, tid, skb, txctl); - } else { -- INIT_LIST_HEAD(&bf_head); -- list_add_tail(&bf->list, &bf_head); -+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb); -+ if (!bf) -+ goto out; - - bf->bf_state.bfs_paprd = txctl->paprd; - -@@ -1831,12 +1858,11 @@ static int ath_tx_start_dma(struct ath_s - if (tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) - ath9k_hw_set_clrdmask(sc->sc_ah, bf->bf_desc, true); - -- ath_tx_send_normal(sc, txctl->txq, tid, &bf_head); -+ ath_tx_send_normal(sc, txctl->txq, tid, skb); - } - - out: - spin_unlock_bh(&txctl->txq->axq_lock); -- return ret; - } - - /* Upon failure caller should free skb */ -@@ -1904,7 +1930,8 @@ int ath_tx_start(struct ieee80211_hw *hw - } - spin_unlock_bh(&txq->axq_lock); - -- return ath_tx_start_dma(sc, skb, txctl); -+ ath_tx_start_dma(sc, skb, txctl); -+ return 0; - } - - /*****************/ |