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cfg80211: export expected throughput through get_station()

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Users may need information about the expected throughput
towards a given peer.
This value is supposed to consider the size overhead
generated by the 802.11 header.

This value is exported in kbps through the get_station() API
by including it into the station_info object.
Moreover, it is sent to user space when replying to the
nl80211 GET_STATION command.

This information will be useful to the batman-adv module
which will use it for its new metric computation.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Antonio Quartulli 2014-05-19 21:53:19 +02:00 • committed by Johannes Berg
commit 867d849fc8
3 changed files with 41 additions and 28 deletions
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3
include/uapi/linux/nl80211.h
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@ -2199,6 +2199,8 @@ enum nl80211_sta_bss_param {
* Contains a nested array of signal strength attributes (u8, dBm)
* @NL80211_STA_INFO_CHAIN_SIGNAL_AVG: per-chain signal strength average
* Same format as NL80211_STA_INFO_CHAIN_SIGNAL.
* @NL80211_STA_EXPECTED_THROUGHPUT: expected throughput considering also the
* 802.11 header (u32, kbps)
* @__NL80211_STA_INFO_AFTER_LAST: internal
* @NL80211_STA_INFO_MAX: highest possible station info attribute
*/
@ -2230,6 +2232,7 @@ enum nl80211_sta_info {
NL80211_STA_INFO_TX_BYTES64,
NL80211_STA_INFO_CHAIN_SIGNAL,
NL80211_STA_INFO_CHAIN_SIGNAL_AVG,
NL80211_STA_INFO_EXPECTED_THROUGHPUT,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,