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mac80211: set beamforming bit in radiotap

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Add a bit in rx_status.vht_flags to let the low level driver
notify mac80211 about a beamformed packet. Propagate this
to the radiotap header.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-03-04 10:35:25 +02:00 • committed by Johannes Berg
parent 3afc2167f6
commit fb378c231d
2 changed files with 4 additions and 0 deletions
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2
include/net/mac80211.h
View file

@ -877,11 +877,13 @@ enum mac80211_rx_flags {
* @RX_VHT_FLAG_80MHZ: 80 MHz was used * @RX_VHT_FLAG_80MHZ: 80 MHz was used
* @RX_VHT_FLAG_80P80MHZ: 80+80 MHz was used * @RX_VHT_FLAG_80P80MHZ: 80+80 MHz was used
* @RX_VHT_FLAG_160MHZ: 160 MHz was used * @RX_VHT_FLAG_160MHZ: 160 MHz was used
* @RX_VHT_FLAG_BF: packet was beamformed
*/ */
enum mac80211_rx_vht_flags { enum mac80211_rx_vht_flags {
RX_VHT_FLAG_80MHZ = BIT(0), RX_VHT_FLAG_80MHZ = BIT(0),
RX_VHT_FLAG_80P80MHZ = BIT(1), RX_VHT_FLAG_80P80MHZ = BIT(1),
RX_VHT_FLAG_160MHZ = BIT(2), RX_VHT_FLAG_160MHZ = BIT(2),
RX_VHT_FLAG_BF = BIT(3),
}; };
/** /**

2
net/mac80211/rx.c
View file

@ -333,6 +333,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* in VHT, STBC is binary */ /* in VHT, STBC is binary */
if (status->flag & RX_FLAG_STBC_MASK) if (status->flag & RX_FLAG_STBC_MASK)
*pos |= IEEE80211_RADIOTAP_VHT_FLAG_STBC; *pos |= IEEE80211_RADIOTAP_VHT_FLAG_STBC;
if (status->vht_flag & RX_VHT_FLAG_BF)
*pos |= IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED;
pos++; pos++;
/* bandwidth */ /* bandwidth */
if (status->vht_flag & RX_VHT_FLAG_80MHZ) if (status->vht_flag & RX_VHT_FLAG_80MHZ)