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Koen Vandeputte dd4b8a24a1 ath9k: backport dynack improvements
Close cooperation with Lorenzo Bianconi resulted
in these patches which fix all remaining seen issues
when using dynack.

Fix link losses when:
- Late Ack's are not seen or not present
- switching from too low static coverage class to dynack on a live link

These are fixed by setting the Ack Timeout/Slottime to
the max possible value for the currently used channel width when
a new station has been discovered.

When traffic flows, dynack is able to adjust to optimal values
within a few packets received (typically < 1 second)

These changes have been thoroughly tested on ~60 offshore devices
all interconnected using mesh over IBSS and dynack enabled on all.

Distances between devices varied from <100m up to ~35km

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
(cherry picked from commit f6e8ba0238fe349b7529357793e2fb18635819ed)
5 years ago
..
ath ath9k: backport dynack improvements 5 years ago
brcm mac80211: Update to version 4.19.57 5 years ago
build mac80211: update to version 4.19.32-1 5 years ago
mwl mac80211: Update to version 4.19.57 5 years ago
rt2x00 mac80211: Update to version 4.19.57 5 years ago
subsys mac80211: backport support for the IEEE80211_KEY_FLAG_GENERATE_MMIE flag 5 years ago