Author: avos
Date: Wed Jan 16 12:11:29 2019
New Revision: 343092
URL: https://svnweb.freebsd.org/changeset/base/343092
Log:
rtwn(4): clear 'basic' rate bit before calculating RTS/CTS rate.
Rate tables have this bit set to indicate minimal set of basic rates;
however, it overlappes with MCS bit, so rate2ridx() will treat them as
an 11n rate.
Due to the current rates setup the issue can be reproduced only
in 5GHz band with 11n / protection enabled.
Tested with RTL8821AU, HOSTAP mode.
MFC after: 5 days
Modified:
head/sys/dev/rtwn/rtl8192c/r92c_tx.c
head/sys/dev/rtwn/rtl8812a/r12a_tx.c
Modified: head/sys/dev/rtwn/rtl8192c/r92c_tx.c
==============================================================================
--- head/sys/dev/rtwn/rtl8192c/r92c_tx.c Wed Jan 16 12:04:29 2019
(r343091)
+++ head/sys/dev/rtwn/rtl8192c/r92c_tx.c Wed Jan 16 12:11:29 2019
(r343092)
@@ -103,7 +103,7 @@ r92c_tx_protection(struct rtwn_softc *sc, struct r92c_
rate = rtwn_ctl_mcsrate(ic->ic_rt, ridx);
else
rate = ieee80211_ctl_rate(ic->ic_rt, ridx2rate[ridx]);
- ridx = rate2ridx(rate);
+ ridx = rate2ridx(IEEE80211_RV(rate));
txd->txdw4 |= htole32(SM(R92C_TXDW4_RTSRATE, ridx));
/* RTS rate fallback limit (max). */
Modified: head/sys/dev/rtwn/rtl8812a/r12a_tx.c
==============================================================================
--- head/sys/dev/rtwn/rtl8812a/r12a_tx.c Wed Jan 16 12:04:29 2019
(r343091)
+++ head/sys/dev/rtwn/rtl8812a/r12a_tx.c Wed Jan 16 12:11:29 2019
(r343092)
@@ -111,7 +111,7 @@ r12a_tx_protection(struct rtwn_softc *sc, struct r12a_
rate = rtwn_ctl_mcsrate(ic->ic_rt, ridx);
else
rate = ieee80211_ctl_rate(ic->ic_rt, ridx2rate[ridx]);
- ridx = rate2ridx(rate);
+ ridx = rate2ridx(IEEE80211_RV(rate));
txd->txdw4 |= htole32(SM(R12A_TXDW4_RTSRATE, ridx));
/* RTS rate fallback limit (max). */
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
