diff options
author | Johannes Berg <johannes.berg@intel.com> | 2015-01-15 18:14:02 +0300 |
---|---|---|
committer | Johannes Berg <johannes.berg@intel.com> | 2015-01-16 00:41:32 +0300 |
commit | b51f3beecfbbfc946749a91fb444cb8917cf444f (patch) | |
tree | 68ecd024ca26b392b48599dc3725e4416d053d1f /include | |
parent | 97d910d0aaa619ca530d08e2b1125b8014ccb030 (diff) | |
download | linux-b51f3beecfbbfc946749a91fb444cb8917cf444f.tar.xz |
cfg80211: change bandwidth reporting to explicit field
For some reason, we made the bandwidth separate flags, which
is rather confusing - a single rate cannot have different
bandwidths at the same time.
Change this to no longer be flags but use a separate field
for the bandwidth ('bw') instead.
While at it, add support for 5 and 10 MHz rates - these are
reported as regular legacy rates with their real bitrate,
but tagged as 5/10 now to make it easier to distinguish them.
In the nl80211 API, the flags are preserved, but the code
now can also clearly only set a single one of the flags.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/net/cfg80211.h | 33 | ||||
-rw-r--r-- | include/uapi/linux/nl80211.h | 8 |
2 files changed, 33 insertions, 8 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 0322048fddab..7b44ba0a7632 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -873,20 +873,35 @@ int cfg80211_check_station_change(struct wiphy *wiphy, * * @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_160_MHZ_WIDTH: 160 MHz width transmission * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval * @RATE_INFO_FLAGS_60G: 60GHz MCS */ enum rate_info_flags { 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_160_MHZ_WIDTH = BIT(4), - RATE_INFO_FLAGS_SHORT_GI = BIT(5), - RATE_INFO_FLAGS_60G = BIT(6), + RATE_INFO_FLAGS_SHORT_GI = BIT(2), + RATE_INFO_FLAGS_60G = BIT(3), +}; + +/** + * enum rate_info_bw - rate bandwidth information + * + * Used by the driver to indicate the rate bandwidth. + * + * @RATE_INFO_BW_5: 5 MHz bandwidth + * @RATE_INFO_BW_10: 10 MHz bandwidth + * @RATE_INFO_BW_20: 20 MHz bandwidth + * @RATE_INFO_BW_40: 40 MHz bandwidth + * @RATE_INFO_BW_80: 80 MHz bandwidth + * @RATE_INFO_BW_160: 160 MHz bandwidth + */ +enum rate_info_bw { + RATE_INFO_BW_5, + RATE_INFO_BW_10, + RATE_INFO_BW_20, + RATE_INFO_BW_40, + RATE_INFO_BW_80, + RATE_INFO_BW_160, }; /** @@ -898,12 +913,14 @@ 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) + * @bw: bandwidth (from &enum rate_info_bw) */ struct rate_info { u8 flags; u8 mcs; u16 legacy; u8 nss; + u8 bw; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 11cdb85ac646..f52797a90816 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2281,6 +2281,12 @@ struct nl80211_sta_flag_update { * @NL80211_RATE_INFO_80P80_MHZ_WIDTH: unused - 80+80 is treated the * same as 160 for purposes of the bitrates * @NL80211_RATE_INFO_160_MHZ_WIDTH: 160 MHz VHT rate + * @NL80211_RATE_INFO_10_MHZ_WIDTH: 10 MHz width - note that this is + * a legacy rate and will be reported as the actual bitrate, i.e. + * half the base (20 MHz) rate + * @NL80211_RATE_INFO_5_MHZ_WIDTH: 5 MHz width - note that this is + * a legacy rate and will be reported as the actual bitrate, i.e. + * a quarter of the base (20 MHz) rate * @__NL80211_RATE_INFO_AFTER_LAST: internal use */ enum nl80211_rate_info { @@ -2295,6 +2301,8 @@ enum nl80211_rate_info { NL80211_RATE_INFO_80_MHZ_WIDTH, NL80211_RATE_INFO_80P80_MHZ_WIDTH, NL80211_RATE_INFO_160_MHZ_WIDTH, + NL80211_RATE_INFO_10_MHZ_WIDTH, + NL80211_RATE_INFO_5_MHZ_WIDTH, /* keep last */ __NL80211_RATE_INFO_AFTER_LAST, |