125 lines
4.4 KiB
Diff
125 lines
4.4 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
@@ -298,6 +298,7 @@ struct ath_tx {
|
|
struct ath_descdma txdma;
|
|
struct ath_txq *txq_map[WME_NUM_AC];
|
|
u32 txq_max_pending[WME_NUM_AC];
|
|
+ u16 max_aggr_framelen[WME_NUM_AC][4][32];
|
|
};
|
|
|
|
struct ath_rx_edma {
|
|
@@ -342,6 +343,7 @@ int ath_tx_init(struct ath_softc *sc, in
|
|
void ath_tx_cleanup(struct ath_softc *sc);
|
|
int ath_txq_update(struct ath_softc *sc, int qnum,
|
|
struct ath9k_tx_queue_info *q);
|
|
+void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
|
|
int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
|
|
struct ath_tx_control *txctl);
|
|
void ath_tx_tasklet(struct ath_softc *sc);
|
|
--- a/drivers/net/wireless/ath/ath9k/xmit.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
|
|
@@ -29,6 +29,8 @@
|
|
#define HT_LTF(_ns) (4 * (_ns))
|
|
#define SYMBOL_TIME(_ns) ((_ns) << 2) /* ns * 4 us */
|
|
#define SYMBOL_TIME_HALFGI(_ns) (((_ns) * 18 + 4) / 5) /* ns * 3.6 us */
|
|
+#define TIME_SYMBOLS(t) ((t) >> 2)
|
|
+#define TIME_SYMBOLS_HALFGI(t) (((t) * 5 - 4) / 18)
|
|
#define NUM_SYMBOLS_PER_USEC(_usec) (_usec >> 2)
|
|
#define NUM_SYMBOLS_PER_USEC_HALFGI(_usec) (((_usec*5)-4)/18)
|
|
|
|
@@ -74,33 +76,6 @@ enum {
|
|
MCS_HT40_SGI,
|
|
};
|
|
|
|
-static int ath_max_4ms_framelen[4][32] = {
|
|
- [MCS_HT20] = {
|
|
- 3212, 6432, 9648, 12864, 19300, 25736, 28952, 32172,
|
|
- 6424, 12852, 19280, 25708, 38568, 51424, 57852, 64280,
|
|
- 9628, 19260, 28896, 38528, 57792, 65532, 65532, 65532,
|
|
- 12828, 25656, 38488, 51320, 65532, 65532, 65532, 65532,
|
|
- },
|
|
- [MCS_HT20_SGI] = {
|
|
- 3572, 7144, 10720, 14296, 21444, 28596, 32172, 35744,
|
|
- 7140, 14284, 21428, 28568, 42856, 57144, 64288, 65532,
|
|
- 10700, 21408, 32112, 42816, 64228, 65532, 65532, 65532,
|
|
- 14256, 28516, 42780, 57040, 65532, 65532, 65532, 65532,
|
|
- },
|
|
- [MCS_HT40] = {
|
|
- 6680, 13360, 20044, 26724, 40092, 53456, 60140, 65532,
|
|
- 13348, 26700, 40052, 53400, 65532, 65532, 65532, 65532,
|
|
- 20004, 40008, 60016, 65532, 65532, 65532, 65532, 65532,
|
|
- 26644, 53292, 65532, 65532, 65532, 65532, 65532, 65532,
|
|
- },
|
|
- [MCS_HT40_SGI] = {
|
|
- 7420, 14844, 22272, 29696, 44544, 59396, 65532, 65532,
|
|
- 14832, 29668, 44504, 59340, 65532, 65532, 65532, 65532,
|
|
- 22232, 44464, 65532, 65532, 65532, 65532, 65532, 65532,
|
|
- 29616, 59232, 65532, 65532, 65532, 65532, 65532, 65532,
|
|
- }
|
|
-};
|
|
-
|
|
/*********************/
|
|
/* Aggregation logic */
|
|
/*********************/
|
|
@@ -648,6 +623,7 @@ static u32 ath_lookup_rate(struct ath_so
|
|
struct ieee80211_tx_rate *rates;
|
|
u32 max_4ms_framelen, frmlen;
|
|
u16 aggr_limit, bt_aggr_limit, legacy = 0;
|
|
+ int q = tid->ac->txq->mac80211_qnum;
|
|
int i;
|
|
|
|
skb = bf->bf_mpdu;
|
|
@@ -680,7 +656,7 @@ static u32 ath_lookup_rate(struct ath_so
|
|
if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI)
|
|
modeidx++;
|
|
|
|
- frmlen = ath_max_4ms_framelen[modeidx][rates[i].idx];
|
|
+ frmlen = sc->tx.max_aggr_framelen[q][modeidx][rates[i].idx];
|
|
max_4ms_framelen = min(max_4ms_framelen, frmlen);
|
|
}
|
|
|
|
@@ -927,6 +903,44 @@ static u32 ath_pkt_duration(struct ath_s
|
|
return duration;
|
|
}
|
|
|
|
+static int ath_max_framelen(int usec, int mcs, bool ht40, bool sgi)
|
|
+{
|
|
+ int streams = HT_RC_2_STREAMS(mcs);
|
|
+ int symbols, bits;
|
|
+ int bytes = 0;
|
|
+
|
|
+ symbols = sgi ? TIME_SYMBOLS_HALFGI(usec) : TIME_SYMBOLS(usec);
|
|
+ bits = symbols * bits_per_symbol[mcs % 8][ht40] * streams;
|
|
+ bits -= OFDM_PLCP_BITS;
|
|
+ bytes = bits / 8;
|
|
+ bytes -= L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
|
|
+ if (bytes > 65532)
|
|
+ bytes = 65532;
|
|
+
|
|
+ return bytes;
|
|
+}
|
|
+
|
|
+void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop)
|
|
+{
|
|
+ u16 *cur_ht20, *cur_ht20_sgi, *cur_ht40, *cur_ht40_sgi;
|
|
+ int mcs;
|
|
+
|
|
+ /* 4ms is the default (and maximum) duration */
|
|
+ if (!txop || txop > 4096)
|
|
+ txop = 4096;
|
|
+
|
|
+ cur_ht20 = sc->tx.max_aggr_framelen[queue][MCS_HT20];
|
|
+ cur_ht20_sgi = sc->tx.max_aggr_framelen[queue][MCS_HT20_SGI];
|
|
+ cur_ht40 = sc->tx.max_aggr_framelen[queue][MCS_HT40];
|
|
+ cur_ht40_sgi = sc->tx.max_aggr_framelen[queue][MCS_HT40_SGI];
|
|
+ for (mcs = 0; mcs < 32; mcs++) {
|
|
+ cur_ht20[mcs] = ath_max_framelen(txop, mcs, false, false);
|
|
+ cur_ht20_sgi[mcs] = ath_max_framelen(txop, mcs, false, true);
|
|
+ cur_ht40[mcs] = ath_max_framelen(txop, mcs, true, false);
|
|
+ cur_ht40_sgi[mcs] = ath_max_framelen(txop, mcs, true, true);
|
|
+ }
|
|
+}
|
|
+
|
|
static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
|
|
struct ath_tx_info *info, int len)
|
|
{
|