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Diffstat (limited to 'net/mac80211/rc80211_minstrel_ht.c')
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c124
1 files changed, 80 insertions, 44 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index ccaf951e4e31..8b168724c5e7 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -51,8 +51,13 @@
MINSTREL_MAX_STREAMS * _sgi + \
_streams - 1
+#define _MAX(a, b) (((a)>(b))?(a):(b))
+
+#define GROUP_SHIFT(duration) \
+ _MAX(0, 16 - __builtin_clz(duration))
+
/* MCS rate information for an MCS group */
-#define MCS_GROUP(_streams, _sgi, _ht40, _s) \
+#define __MCS_GROUP(_streams, _sgi, _ht40, _s) \
[GROUP_IDX(_streams, _sgi, _ht40)] = { \
.streams = _streams, \
.shift = _s, \
@@ -72,6 +77,13 @@
} \
}
+#define MCS_GROUP_SHIFT(_streams, _sgi, _ht40) \
+ GROUP_SHIFT(MCS_DURATION(_streams, _sgi, _ht40 ? 54 : 26))
+
+#define MCS_GROUP(_streams, _sgi, _ht40) \
+ __MCS_GROUP(_streams, _sgi, _ht40, \
+ MCS_GROUP_SHIFT(_streams, _sgi, _ht40))
+
#define VHT_GROUP_IDX(_streams, _sgi, _bw) \
(MINSTREL_VHT_GROUP_0 + \
MINSTREL_MAX_STREAMS * 2 * (_bw) + \
@@ -81,7 +93,7 @@
#define BW2VBPS(_bw, r3, r2, r1) \
(_bw == BW_80 ? r3 : _bw == BW_40 ? r2 : r1)
-#define VHT_GROUP(_streams, _sgi, _bw, _s) \
+#define __VHT_GROUP(_streams, _sgi, _bw, _s) \
[VHT_GROUP_IDX(_streams, _sgi, _bw)] = { \
.streams = _streams, \
.shift = _s, \
@@ -114,6 +126,14 @@
} \
}
+#define VHT_GROUP_SHIFT(_streams, _sgi, _bw) \
+ GROUP_SHIFT(MCS_DURATION(_streams, _sgi, \
+ BW2VBPS(_bw, 117, 54, 26)))
+
+#define VHT_GROUP(_streams, _sgi, _bw) \
+ __VHT_GROUP(_streams, _sgi, _bw, \
+ VHT_GROUP_SHIFT(_streams, _sgi, _bw))
+
#define CCK_DURATION(_bitrate, _short, _len) \
(1000 * (10 /* SIFS */ + \
(_short ? 72 + 24 : 144 + 48) + \
@@ -129,7 +149,7 @@
CCK_ACK_DURATION(55, _short) >> _s, \
CCK_ACK_DURATION(110, _short) >> _s
-#define CCK_GROUP(_s) \
+#define __CCK_GROUP(_s) \
[MINSTREL_CCK_GROUP] = { \
.streams = 1, \
.flags = 0, \
@@ -140,6 +160,12 @@
} \
}
+#define CCK_GROUP_SHIFT \
+ GROUP_SHIFT(CCK_ACK_DURATION(10, false))
+
+#define CCK_GROUP __CCK_GROUP(CCK_GROUP_SHIFT)
+
+
static bool minstrel_vht_only = true;
module_param(minstrel_vht_only, bool, 0644);
MODULE_PARM_DESC(minstrel_vht_only,
@@ -154,47 +180,57 @@ MODULE_PARM_DESC(minstrel_vht_only,
* BW -> SGI -> #streams
*/
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(1, 1, BW_20, 5),
- MCS_GROUP(2, 1, BW_20, 4),
- MCS_GROUP(3, 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(1, 1, BW_40, 4),
- MCS_GROUP(2, 1, BW_40, 4),
- MCS_GROUP(3, 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(1, 1, BW_20, 5),
- VHT_GROUP(2, 1, BW_20, 4),
- VHT_GROUP(3, 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(1, 1, BW_40, 4),
- VHT_GROUP(2, 1, BW_40, 4),
- VHT_GROUP(3, 1, BW_40, 4),
-
- VHT_GROUP(1, 0, BW_80, 4),
- VHT_GROUP(2, 0, BW_80, 4),
- VHT_GROUP(3, 0, BW_80, 4),
-
- VHT_GROUP(1, 1, BW_80, 4),
- VHT_GROUP(2, 1, BW_80, 4),
- VHT_GROUP(3, 1, BW_80, 4),
+ MCS_GROUP(1, 0, BW_20),
+ MCS_GROUP(2, 0, BW_20),
+ MCS_GROUP(3, 0, BW_20),
+ MCS_GROUP(4, 0, BW_20),
+
+ MCS_GROUP(1, 1, BW_20),
+ MCS_GROUP(2, 1, BW_20),
+ MCS_GROUP(3, 1, BW_20),
+ MCS_GROUP(4, 1, BW_20),
+
+ MCS_GROUP(1, 0, BW_40),
+ MCS_GROUP(2, 0, BW_40),
+ MCS_GROUP(3, 0, BW_40),
+ MCS_GROUP(4, 0, BW_40),
+
+ MCS_GROUP(1, 1, BW_40),
+ MCS_GROUP(2, 1, BW_40),
+ MCS_GROUP(3, 1, BW_40),
+ MCS_GROUP(4, 1, BW_40),
+
+ CCK_GROUP,
+
+ VHT_GROUP(1, 0, BW_20),
+ VHT_GROUP(2, 0, BW_20),
+ VHT_GROUP(3, 0, BW_20),
+ VHT_GROUP(4, 0, BW_20),
+
+ VHT_GROUP(1, 1, BW_20),
+ VHT_GROUP(2, 1, BW_20),
+ VHT_GROUP(3, 1, BW_20),
+ VHT_GROUP(4, 1, BW_20),
+
+ VHT_GROUP(1, 0, BW_40),
+ VHT_GROUP(2, 0, BW_40),
+ VHT_GROUP(3, 0, BW_40),
+ VHT_GROUP(4, 0, BW_40),
+
+ VHT_GROUP(1, 1, BW_40),
+ VHT_GROUP(2, 1, BW_40),
+ VHT_GROUP(3, 1, BW_40),
+ VHT_GROUP(4, 1, BW_40),
+
+ VHT_GROUP(1, 0, BW_80),
+ VHT_GROUP(2, 0, BW_80),
+ VHT_GROUP(3, 0, BW_80),
+ VHT_GROUP(4, 0, BW_80),
+
+ VHT_GROUP(1, 1, BW_80),
+ VHT_GROUP(2, 1, BW_80),
+ VHT_GROUP(3, 1, BW_80),
+ VHT_GROUP(4, 1, BW_80),
};
static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] __read_mostly;