Author: adrian
Date: Tue Apr 26 01:34:21 2016
New Revision: 298607
URL: https://svnweb.freebsd.org/changeset/base/298607
Log:
[ath] obey the STBC flag setting in iv_flags_ht
Add support for the FHT_STBC_TX flag in iv_flags_ht, so it'll now obey
the per-vap ifconfig stbctx flag.
This means that we can do STBC TX on one vap and not another VAP.
(As well as STBC RX on said vap; that changes the HTCAP announcement.)
Modified:
head/sys/dev/ath/if_ath_tx_ht.c
Modified: head/sys/dev/ath/if_ath_tx_ht.c
==============================================================================
--- head/sys/dev/ath/if_ath_tx_ht.c Tue Apr 26 01:30:29 2016
(r298606)
+++ head/sys/dev/ath/if_ath_tx_ht.c Tue Apr 26 01:34:21 2016
(r298607)
@@ -272,8 +272,11 @@ ath_tx_rate_fill_rcflags(struct ath_soft
* can receive (at least) 1 stream STBC, AND it's
* MCS 0-7, AND we have at least two chains enabled,
* enable STBC.
+ *
+ * XXX TODO: .. and the rate is an 11n rate?
*/
if (ic->ic_htcaps & IEEE80211_HTCAP_TXSTBC &&
+ ni->ni_vap->iv_flags_ht & IEEE80211_FHT_STBC_TX &&
ni->ni_htcap & IEEE80211_HTCAP_RXSTBC_1STREAM &&
(sc->sc_cur_txchainmask > 1) &&
HT_RC_2_STREAMS(rate) == 1) {
@@ -281,10 +284,6 @@ ath_tx_rate_fill_rcflags(struct ath_soft
}
/*
- * XXX TODO: LDPC
- */
-
- /*
* Dual / Triple stream rate?
*/
if (HT_RC_2_STREAMS(rate) == 2)
@@ -565,6 +564,12 @@ ath_rateseries_setup(struct ath_softc *s
}
/*
+ * TODO: If we're all doing 11n rates then we can set LDPC.
+ * If we've been asked to /do/ LDPC but we are handed a
+ * legacy rate, then we should complain. Loudly.
+ */
+
+ /*
* PktDuration doesn't include slot, ACK, RTS, etc timing -
* it's just the packet duration
*/
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