When the STA is in Dynamic SMPS mode, tell
minstrel_ht to use RTS_CTS for frames which
are transmitted using more than 1 spatial
streams.
Signed-off-by: Chaitanya T K <chaitanya.mgit@xxxxxxxxx>
---
net/mac80211/rc80211_minstrel_ht.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index c1b5b73..a1095d3 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -925,10 +925,17 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
sta->bandwidth < IEEE80211_STA_RX_BW_40)
continue;
- /* Mark MCS > 7 as unsupported if STA is in static SMPS mode */
- if (sta->smps_mode == IEEE80211_SMPS_STATIC &&
- minstrel_mcs_groups[i].streams > 1)
+ /* Handle STA's SMPS State
+ * a. Use RTS_CTS, if Nss>1 and if STA is in Dynamic SMPS Mode
+ * b. Mark Nss>1 as unsupported, if STA is in static SMPS mode
+ */
+ if (sta->smps_mode == IEEE80211_SMPS_DYNAMIC &&
+ minstrel_mcs_groups[i].streams > 1) {
+ mi->tx_flags |= IEEE80211_TX_RC_USE_RTS_CTS;
+ } else if (sta->smps_mode == IEEE80211_SMPS_STATIC &&
+ minstrel_mcs_groups[i].streams > 1) {
continue;
+ }
mi->groups[i].supported =
mcs->rx_mask[minstrel_mcs_groups[i].streams - 1];
--
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