mac80211: minstrel_ht: add support for rates with 4 spatial streams

This is needed for the upcoming driver for MT7615 4x4 802.11ac chipsets
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/rc80211_minstrel_ht.c

@@ -157,44 +157,54 @@ const struct mcs_group minstrel_mcs_groups[] = {
 	MCS_GROUP(1, 0, BW_20, 5),
 	MCS_GROUP(2, 0, BW_20, 4),
 	MCS_GROUP(3, 0, BW_20, 4),
+	MCS_GROUP(4, 0, BW_20, 4),
 
 	MCS_GROUP(1, 1, BW_20, 5),
 	MCS_GROUP(2, 1, BW_20, 4),
 	MCS_GROUP(3, 1, BW_20, 4),
+	MCS_GROUP(4, 1, BW_20, 4),
 
 	MCS_GROUP(1, 0, BW_40, 4),
 	MCS_GROUP(2, 0, BW_40, 4),
 	MCS_GROUP(3, 0, BW_40, 4),
+	MCS_GROUP(4, 0, BW_40, 4),
 
 	MCS_GROUP(1, 1, BW_40, 4),
 	MCS_GROUP(2, 1, BW_40, 4),
 	MCS_GROUP(3, 1, BW_40, 4),
+	MCS_GROUP(4, 1, BW_40, 4),
 
 	CCK_GROUP(8),
 
 	VHT_GROUP(1, 0, BW_20, 5),
 	VHT_GROUP(2, 0, BW_20, 4),
 	VHT_GROUP(3, 0, BW_20, 4),
+	VHT_GROUP(4, 0, BW_20, 4),
 
 	VHT_GROUP(1, 1, BW_20, 5),
 	VHT_GROUP(2, 1, BW_20, 4),
 	VHT_GROUP(3, 1, BW_20, 4),
+	VHT_GROUP(4, 1, BW_20, 4),
 
 	VHT_GROUP(1, 0, BW_40, 4),
 	VHT_GROUP(2, 0, BW_40, 4),
 	VHT_GROUP(3, 0, BW_40, 4),
+	VHT_GROUP(4, 0, BW_40, 3),
 
 	VHT_GROUP(1, 1, BW_40, 4),
 	VHT_GROUP(2, 1, BW_40, 4),
 	VHT_GROUP(3, 1, BW_40, 4),
+	VHT_GROUP(4, 1, BW_40, 3),
 
 	VHT_GROUP(1, 0, BW_80, 4),
 	VHT_GROUP(2, 0, BW_80, 4),
 	VHT_GROUP(3, 0, BW_80, 4),
+	VHT_GROUP(4, 0, BW_80, 2),
 
 	VHT_GROUP(1, 1, BW_80, 4),
 	VHT_GROUP(2, 1, BW_80, 4),
 	VHT_GROUP(3, 1, BW_80, 4),
+	VHT_GROUP(4, 1, BW_80, 2),
 };
 
 static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] __read_mostly;

net/mac80211/rc80211_minstrel_ht.h

@@ -13,7 +13,7 @@
  * The number of streams can be changed to 2 to reduce code
  * size and memory footprint.
  */
-#define MINSTREL_MAX_STREAMS		3
+#define MINSTREL_MAX_STREAMS		4
 #define MINSTREL_HT_STREAM_GROUPS	4 /* BW(=2) * SGI(=2) */
 #define MINSTREL_VHT_STREAM_GROUPS	6 /* BW(=3) * SGI(=2) */