mirror of https://github.com/hak5/openwrt.git
385 lines
10 KiB
Diff
385 lines
10 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/xmit.c
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+++ b/drivers/net/wireless/ath/ath9k/xmit.c
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@@ -672,7 +672,7 @@ static void ath_tx_process_buffer(struct
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} else
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ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
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- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) && !flush)
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+ if (!flush)
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ath_txq_schedule(sc, txq);
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}
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@@ -848,6 +848,7 @@ static struct ath_buf *
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ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
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struct ath_atx_tid *tid, struct sk_buff_head **q)
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{
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+ struct ieee80211_tx_info *tx_info;
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struct ath_frame_info *fi;
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struct sk_buff *skb;
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struct ath_buf *bf;
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@@ -874,6 +875,16 @@ ath_tx_get_tid_subframe(struct ath_softc
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continue;
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}
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+ bf->bf_next = NULL;
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+ bf->bf_lastbf = bf;
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+
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+ tx_info = IEEE80211_SKB_CB(skb);
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+ tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
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+ if (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
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+ bf->bf_state.bf_type = 0;
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+ return bf;
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+ }
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+
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bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
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seqno = bf->bf_state.seqno;
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@@ -893,58 +904,45 @@ ath_tx_get_tid_subframe(struct ath_softc
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continue;
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}
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- bf->bf_next = NULL;
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- bf->bf_lastbf = bf;
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return bf;
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}
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return NULL;
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}
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-static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
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- struct ath_txq *txq,
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- struct ath_atx_tid *tid,
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- struct list_head *bf_q,
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- int *aggr_len)
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+static bool
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+ath_tx_form_aggr(struct ath_softc *sc, struct ath_txq *txq,
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+ struct ath_atx_tid *tid, struct list_head *bf_q,
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+ struct ath_buf *bf_first, struct sk_buff_head *tid_q,
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+ int *aggr_len)
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{
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#define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
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- struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
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+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
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int nframes = 0, ndelim;
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u16 aggr_limit = 0, al = 0, bpad = 0,
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al_delta, h_baw = tid->baw_size / 2;
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- enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
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struct ieee80211_tx_info *tx_info;
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struct ath_frame_info *fi;
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struct sk_buff *skb;
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- struct sk_buff_head *tid_q;
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+ bool closed = false;
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- do {
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- bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
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- if (!bf) {
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- status = ATH_AGGR_BAW_CLOSED;
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- break;
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- }
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+ bf = bf_first;
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+ aggr_limit = ath_lookup_rate(sc, bf, tid);
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+ do {
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skb = bf->bf_mpdu;
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fi = get_frame_info(skb);
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- if (!bf_first) {
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- bf_first = bf;
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- ath_set_rates(tid->an->vif, tid->an->sta, bf);
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- aggr_limit = ath_lookup_rate(sc, bf, tid);
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- }
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-
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/* do not exceed aggregation limit */
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al_delta = ATH_AGGR_DELIM_SZ + fi->framelen;
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if (nframes) {
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if (aggr_limit < al + bpad + al_delta ||
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- ath_lookup_legacy(bf) || nframes >= h_baw) {
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- status = ATH_AGGR_LIMITED;
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+ ath_lookup_legacy(bf) || nframes >= h_baw)
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break;
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- }
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tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
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- if (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
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+ if ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
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+ !(tx_info->flags & IEEE80211_TX_CTL_AMPDU))
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break;
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}
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@@ -974,11 +972,26 @@ static enum ATH_AGGR_STATUS ath_tx_form_
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bf_prev = bf;
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+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
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+ if (!bf) {
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+ closed = true;
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+ break;
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+ }
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} while (ath_tid_has_buffered(tid));
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+ bf = bf_first;
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+ bf->bf_lastbf = bf_prev;
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+
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+ if (bf == bf_prev) {
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+ al = get_frame_info(bf->bf_mpdu)->framelen;
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+ bf->bf_state.bf_type = BUF_AMPDU;
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+ } else {
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+ TX_STAT_INC(txq->axq_qnum, a_aggr);
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+ }
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+
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*aggr_len = al;
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- return status;
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+ return closed;
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#undef PADBYTES
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}
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@@ -1239,14 +1252,45 @@ static void ath_tx_fill_desc(struct ath_
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}
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}
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+static void
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+ath_tx_form_burst(struct ath_softc *sc, struct ath_txq *txq,
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+ struct ath_atx_tid *tid, struct list_head *bf_q,
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+ struct ath_buf *bf_first, struct sk_buff_head *tid_q)
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+{
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+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
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+ struct sk_buff *skb;
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+ int nframes = 0;
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+
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+ do {
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+ skb = bf->bf_mpdu;
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+
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+ nframes++;
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+ __skb_unlink(skb, tid_q);
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+ list_add_tail(&bf->list, bf_q);
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+ if (bf_prev)
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+ bf_prev->bf_next = bf;
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+ bf_prev = bf;
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+
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+ if (nframes >= 2)
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+ break;
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+
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+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
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+ if (!bf)
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+ break;
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+
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+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
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+ } while (1);
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+}
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+
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static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
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struct ath_atx_tid *tid)
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{
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struct ath_buf *bf;
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- enum ATH_AGGR_STATUS status;
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struct ieee80211_tx_info *tx_info;
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+ struct sk_buff_head *tid_q;
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struct list_head bf_q;
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- int aggr_len;
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+ int aggr_len = 0;
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+ bool aggr, last = true;
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do {
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if (!ath_tid_has_buffered(tid))
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@@ -1254,38 +1298,31 @@ static void ath_tx_sched_aggr(struct ath
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INIT_LIST_HEAD(&bf_q);
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- status = ath_tx_form_aggr(sc, txq, tid, &bf_q, &aggr_len);
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-
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- /*
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- * no frames picked up to be aggregated;
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- * block-ack window is not open.
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- */
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- if (list_empty(&bf_q))
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+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
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+ if (!bf)
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break;
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- bf = list_first_entry(&bf_q, struct ath_buf, list);
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- bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);
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tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
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+ aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
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+ if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
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+ (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH))
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+ break;
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+
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+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
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+ if (aggr)
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+ last = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf,
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+ tid_q, &aggr_len);
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+ else
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+ ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q);
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if (tid->ac->clear_ps_filter) {
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tid->ac->clear_ps_filter = false;
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tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
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- } else {
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- tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
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- }
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-
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- /* if only one frame, send as non-aggregate */
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- if (bf == bf->bf_lastbf) {
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- aggr_len = get_frame_info(bf->bf_mpdu)->framelen;
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- bf->bf_state.bf_type = BUF_AMPDU;
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- } else {
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- TX_STAT_INC(txq->axq_qnum, a_aggr);
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}
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ath_tx_fill_desc(sc, bf, txq, aggr_len);
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ath_tx_txqaddbuf(sc, txq, &bf_q, false);
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- } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
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- status != ATH_AGGR_BAW_CLOSED);
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+ } while (!last);
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}
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int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
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@@ -1844,58 +1881,6 @@ static void ath_tx_txqaddbuf(struct ath_
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}
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}
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-static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_txq *txq,
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- struct ath_atx_tid *tid, struct sk_buff *skb,
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- struct ath_tx_control *txctl)
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-{
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- struct ath_frame_info *fi = get_frame_info(skb);
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- struct list_head bf_head;
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- struct ath_buf *bf;
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-
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- /*
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- * Do not queue to h/w when any of the following conditions is true:
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- * - there are pending frames in software queue
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- * - the TID is currently paused for ADDBA/BAR request
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- * - seqno is not within block-ack window
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- * - h/w queue depth exceeds low water mark
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- */
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- if ((ath_tid_has_buffered(tid) || tid->paused ||
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- !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
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- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
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- txq != sc->tx.uapsdq) {
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- /*
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- * Add this frame to software queue for scheduling later
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- * for aggregation.
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- */
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- TX_STAT_INC(txq->axq_qnum, a_queued_sw);
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- __skb_queue_tail(&tid->buf_q, skb);
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- if (!txctl->an || !txctl->an->sleeping)
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- ath_tx_queue_tid(txq, tid);
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- return;
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- }
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-
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- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
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- if (!bf) {
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- ath_txq_skb_done(sc, txq, skb);
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- ieee80211_free_txskb(sc->hw, skb);
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- return;
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- }
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-
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- ath_set_rates(tid->an->vif, tid->an->sta, bf);
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- bf->bf_state.bf_type = BUF_AMPDU;
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- INIT_LIST_HEAD(&bf_head);
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- list_add(&bf->list, &bf_head);
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-
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- /* Add sub-frame to BAW */
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- ath_tx_addto_baw(sc, tid, bf);
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-
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- /* Queue to h/w without aggregation */
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- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
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- bf->bf_lastbf = bf;
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- ath_tx_fill_desc(sc, bf, txq, fi->framelen);
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- ath_tx_txqaddbuf(sc, txq, &bf_head, false);
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-}
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-
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static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
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struct ath_atx_tid *tid, struct sk_buff *skb)
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{
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@@ -2121,20 +2106,25 @@ int ath_tx_start(struct ieee80211_hw *hw
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ath_txq_unlock(sc, txq);
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txq = sc->tx.uapsdq;
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ath_txq_lock(sc, txq);
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- }
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-
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- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
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+ } else if (txctl->an &&
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+ ieee80211_is_data_present(hdr->frame_control)) {
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tid = ath_get_skb_tid(sc, txctl->an, skb);
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WARN_ON(tid->ac->txq != txctl->txq);
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- }
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- if ((info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
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+ if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
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+ tid->ac->clear_ps_filter = true;
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+
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/*
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- * Try aggregation if it's a unicast data frame
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- * and the destination is HT capable.
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+ * Add this frame to software queue for scheduling later
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+ * for aggregation.
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*/
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- ath_tx_send_ampdu(sc, txq, tid, skb, txctl);
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+ TX_STAT_INC(txq->axq_qnum, a_queued_sw);
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+ __skb_queue_tail(&tid->buf_q, skb);
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+ if (!txctl->an->sleeping)
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+ ath_tx_queue_tid(txq, tid);
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+
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+ ath_txq_schedule(sc, txq);
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goto out;
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}
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@@ -2397,8 +2387,7 @@ static void ath_tx_processq(struct ath_s
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if (list_empty(&txq->axq_q)) {
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txq->axq_link = NULL;
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- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
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- ath_txq_schedule(sc, txq);
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+ ath_txq_schedule(sc, txq);
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break;
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}
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bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
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@@ -2628,6 +2617,7 @@ void ath_tx_node_init(struct ath_softc *
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for (acno = 0, ac = &an->ac[acno];
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acno < IEEE80211_NUM_ACS; acno++, ac++) {
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ac->sched = false;
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+ ac->clear_ps_filter = true;
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ac->txq = sc->tx.txq_map[acno];
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INIT_LIST_HEAD(&ac->tid_q);
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}
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--- a/drivers/net/wireless/ath/ath9k/ath9k.h
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+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -137,6 +137,8 @@ int ath_descdma_setup(struct ath_softc *
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#define ATH_AGGR_ENCRYPTDELIM 10
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/* minimum h/w qdepth to be sustained to maximize aggregation */
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#define ATH_AGGR_MIN_QDEPTH 2
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+/* minimum h/w qdepth for non-aggregated traffic */
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+#define ATH_NON_AGGR_MIN_QDEPTH 8
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#define IEEE80211_SEQ_SEQ_SHIFT 4
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#define IEEE80211_SEQ_MAX 4096
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@@ -173,12 +175,6 @@ int ath_descdma_setup(struct ath_softc *
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#define ATH_TX_COMPLETE_POLL_INT 1000
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-enum ATH_AGGR_STATUS {
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- ATH_AGGR_DONE,
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- ATH_AGGR_BAW_CLOSED,
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- ATH_AGGR_LIMITED,
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-};
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-
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#define ATH_TXFIFO_DEPTH 8
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struct ath_txq {
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int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -1403,9 +1403,6 @@ static void ath9k_sta_notify(struct ieee
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struct ath_softc *sc = hw->priv;
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struct ath_node *an = (struct ath_node *) sta->drv_priv;
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- if (!sta->ht_cap.ht_supported)
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- return;
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-
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switch (cmd) {
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case STA_NOTIFY_SLEEP:
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an->sleeping = true;
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