diff options
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 45155803c875..531b526a10db 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1188,6 +1188,8 @@ enum mac80211_rx_encoding { * HT or VHT is used (%RX_FLAG_HT/%RX_FLAG_VHT) * @nss: number of streams (VHT and HE only) * @flag: %RX_FLAG_\* + * @airtime: Duration of frame in usec. See @IEEE80211_HW_AIRTIME_ACCOUNTING for + * how to use this. * @encoding: &enum mac80211_rx_encoding * @bw: &enum rate_info_bw * @enc_flags: uses bits from &enum mac80211_rx_encoding_flags @@ -1202,6 +1204,7 @@ struct ieee80211_rx_status { u32 device_timestamp; u32 ampdu_reference; u32 flag; + u16 airtime; u16 freq; u8 enc_flags; u8 encoding:2, bw:3; @@ -2066,6 +2069,26 @@ struct ieee80211_txq { * @IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA: Hardware supports buffer STA on * TDLS links. * + * @IEEE80211_HW_AIRTIME_ACCOUNTING: Hardware supports accounting the airtime + * usage of other stations and reports it in the @tx_time and/or @airtime + * fields of the TX/RX status structs. + * When setting this flag, the driver should ensure that the respective + * fields in the TX and RX status structs are always either zero or + * contains a valid duration for the frame in usec. The driver can choose + * to report either or both of TX and RX airtime, but it is recommended to + * report both. + * The reported airtime should as a minimum include all time that is spent + * transmitting to the remote station, including overhead and padding, but + * not including time spent waiting for a TXOP. If the time is not reported + * by the hardware it can in some cases be calculated from the rate and + * known frame composition. When possible, the time should include any + * failed transmission attempts. + * For aggregated frames, there are two possible strategies to report the + * airtime: Either include the airtime of the entire aggregate in the first + * (or last) frame and leave the others at zero. Alternatively, include the + * overhead of the full aggregate in the first or last frame and report the + * time of each frame + padding not including the full aggregate overhead. + * * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays */ enum ieee80211_hw_flags { @@ -2109,6 +2132,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_REPORTS_LOW_ACK, IEEE80211_HW_SUPPORTS_TX_FRAG, IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA, + IEEE80211_HW_AIRTIME_ACCOUNTING, /* keep last, obviously */ NUM_IEEE80211_HW_FLAGS |