nl80211/cfg80211: add VHT MCS support

Add support for reporting and calculating VHT MCSes.

Note that I'm not completely sure that the bitrate
calculations are correct, nor that they can't be
simplified.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 17 insertions, 7 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 977da58fb7ea..e78db2cf3d1b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -662,16 +662,24 @@ enum station_info_flags {
  * Used by the driver to indicate the specific rate transmission
  * type for 802.11n transmissions.
  *
- * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
- * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
+ * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS
+ * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
+ * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
+ * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
+ * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
+ * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
  * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
- * @RATE_INFO_FLAGS_60G: 60gHz MCS
+ * @RATE_INFO_FLAGS_60G: 60GHz MCS
  */
 enum rate_info_flags {
-        RATE_INFO_FLAGS_MCS             = 1<<0,
-        RATE_INFO_FLAGS_40_MHZ_WIDTH    = 1<<1,
-        RATE_INFO_FLAGS_SHORT_GI        = 1<<2,
-        RATE_INFO_FLAGS_60G             = 1<<3,
+        RATE_INFO_FLAGS_MCS                     = BIT(0),
+        RATE_INFO_FLAGS_VHT_MCS                 = BIT(1),
+        RATE_INFO_FLAGS_40_MHZ_WIDTH            = BIT(2),
+        RATE_INFO_FLAGS_80_MHZ_WIDTH            = BIT(3),
+        RATE_INFO_FLAGS_80P80_MHZ_WIDTH         = BIT(4),
+        RATE_INFO_FLAGS_160_MHZ_WIDTH           = BIT(5),
+        RATE_INFO_FLAGS_SHORT_GI                = BIT(6),
+        RATE_INFO_FLAGS_60G                     = BIT(7),
 };
 
 /**
@@ -682,11 +690,13 @@ enum rate_info_flags {
  * @flags: bitflag of flags from &enum rate_info_flags
  * @mcs: mcs index if struct describes a 802.11n bitrate
  * @legacy: bitrate in 100kbit/s for 802.11abg
+ * @nss: number of streams (VHT only)
  */
 struct rate_info {
         u8 flags;
         u8 mcs;
         u16 legacy;
+        u8 nss;
 };
 
 /**