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| author | Felix Fietkau <nbd@openwrt.org> | 2010-01-15 07:39:35 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2010-01-15 07:39:35 +0000 |
| commit | 7c6b51f9e286204cc9db1d1f5f6b57013b15b123 (patch) | |
| tree | 69c1ebbd65c55c56a69a0622c8f9d5ee27851200 | |
| parent | 87226cbdc619874fec78cef8f24674db0d9fc25f (diff) | |
| download | upstream-7c6b51f9e286204cc9db1d1f5f6b57013b15b123.tar.gz upstream-7c6b51f9e286204cc9db1d1f5f6b57013b15b123.tar.bz2 upstream-7c6b51f9e286204cc9db1d1f5f6b57013b15b123.zip | |
ath9k: fix rts/cts handling
SVN-Revision: 19147
| -rw-r--r-- | package/mac80211/patches/570-ath9k_fix_rts_cts.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/package/mac80211/patches/570-ath9k_fix_rts_cts.patch b/package/mac80211/patches/570-ath9k_fix_rts_cts.patch new file mode 100644 index 0000000000..789623c674 --- /dev/null +++ b/package/mac80211/patches/570-ath9k_fix_rts_cts.patch @@ -0,0 +1,61 @@ +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -1498,26 +1498,6 @@ static void ath_buf_set_rate(struct ath_ + if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) + ctsrate |= rate->hw_value_short; + +- /* +- * ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. +- * Check the first rate in the series to decide whether RTS/CTS +- * or CTS-to-self has to be used. +- */ +- if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) +- flags = ATH9K_TXDESC_CTSENA; +- else if (rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) +- flags = ATH9K_TXDESC_RTSENA; +- +- /* FIXME: Handle aggregation protection */ +- if (sc->config.ath_aggr_prot && +- (!bf_isaggr(bf) || (bf_isaggr(bf) && bf->bf_al < 8192))) { +- flags = ATH9K_TXDESC_RTSENA; +- } +- +- /* For AR5416 - RTS cannot be followed by a frame larger than 8K */ +- if (bf_isaggr(bf) && (bf->bf_al > sc->sc_ah->caps.rts_aggr_limit)) +- flags &= ~(ATH9K_TXDESC_RTSENA); +- + for (i = 0; i < 4; i++) { + bool is_40, is_sgi, is_sp; + int phy; +@@ -1529,8 +1509,15 @@ static void ath_buf_set_rate(struct ath_ + series[i].Tries = rates[i].count; + series[i].ChSel = common->tx_chainmask; + +- if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) ++ if ((sc->config.ath_aggr_prot && bf_isaggr(bf)) || ++ (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS)) { + series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS; ++ flags |= ATH9K_TXDESC_RTSENA; ++ } else if (rates[i].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { ++ series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS; ++ flags |= ATH9K_TXDESC_CTSENA; ++ } ++ + if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + series[i].RateFlags |= ATH9K_RATESERIES_2040; + if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI) +@@ -1568,6 +1555,14 @@ static void ath_buf_set_rate(struct ath_ + phy, rate->bitrate * 100, bf->bf_frmlen, rix, is_sp); + } + ++ /* For AR5416 - RTS cannot be followed by a frame larger than 8K */ ++ if (bf_isaggr(bf) && (bf->bf_al > sc->sc_ah->caps.rts_aggr_limit)) ++ flags &= ~ATH9K_TXDESC_RTSENA; ++ ++ /* ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. */ ++ if (flags & ATH9K_TXDESC_RTSENA) ++ flags &= ~ATH9K_TXDESC_CTSENA; ++ + /* set dur_update_en for l-sig computation except for PS-Poll frames */ + ath9k_hw_set11n_ratescenario(sc->sc_ah, bf->bf_desc, + bf->bf_lastbf->bf_desc, |