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>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 977da58..e78db2c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -662,16 +662,24 @@
* 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 @@
* @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;
};
/**