mac80211: optimize minstrel_ewma

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Use powers of two in ewma of minstrel.
This changes :
- EWMA_DIV   from 100 to 2^7
- EWMA_LEVEL from 75 (/EWMA_DIV=100) to 2^6 + 2^5 (/EWMA_DIV=128)

Note that this changes EWMA_DIV - EWMA_LEVEL from 25 to 2^5 and keeps
EWMA_LEVEL / EWMA_DIV == 0.75.

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

...

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Karl Beldan 2013-04-17 13:43:22 +02:00 • committed by Johannes Berg

parent e1c3b15dd3

commit eea85999ec

1 changed files with 3 additions and 2 deletions

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net/mac80211/rc80211_minstrel.h

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