This is similar to a recent change in iwm, but it only affects 11n mode
in this driver.
The condition being removed below was added by me before the RTS threshold
was enabled in net80211. So now we should not need it anymore and removing
it might actually improve things by removing RTS overhead for small frames.
Please test.
Index: if_iwn.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_iwn.c,v
retrieving revision 1.174
diff -u -p -r1.174 if_iwn.c
--- if_iwn.c 8 Oct 2016 14:44:36 -0000 1.174
+++ if_iwn.c 24 Oct 2016 09:13:36 -0000
@@ -2959,8 +2959,6 @@ iwn_tx(struct iwn_softc *sc, struct mbuf
else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
flags |= IWN_TX_NEED_RTS;
}
- else if (ni->ni_flags & IEEE80211_NODE_HT)
- flags |= IWN_TX_NEED_RTS;
if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) {
if (sc->hw_type != IWN_HW_REV_TYPE_4965) {
