[PATCH 4/7] batman-adv: ELP - use wifi tx bitrate as fallback throughput
From: Simon Wunderlich <sw@simonwunderlich.de>
Date: 2020-01-14 14:24:00
Also in:
batman
Subsystem:
batman advanced, the rest · Maintainers:
Marek Lindner, Simon Wunderlich, Antonio Quartulli, Sven Eckelmann, Linus Torvalds
From: René Treffer <redacted> Some wifi drivers (e.g. ath10k) provide per-station rx/tx values but no estimated throughput. Setting a better estimate than the default 1 MBit makes these devices work well with B.A.T.M.A.N. V. Signed-off-by: René Treffer <redacted> Signed-off-by: Marek Lindner <redacted> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> --- net/batman-adv/bat_v_elp.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index 2614a9caee00..6536e8cc53a0 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c@@ -107,10 +107,17 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh) } if (ret) goto default_throughput; - if (!(sinfo.filled & BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT))) - goto default_throughput; - return sinfo.expected_throughput / 100; + if (sinfo.filled & BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT)) + return sinfo.expected_throughput / 100; + + /* try to estimate the expected throughput based on reported tx + * rates + */ + if (sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)) + return cfg80211_calculate_bitrate(&sinfo.txrate) / 3; + + goto default_throughput; } /* if not a wifi interface, check if this device provides data via
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2.20.1