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Re: [PATCH 00/10] add support for ack timeout estimation in ath9k driver

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Hi Lorenzo,
Since friday I enable dynack on an AP who serve 35 sta (on 2 MIMO 2x2 5ghz wireless cards 12&23) in outdoor (up to 8 kms)
results are good. latency is good for all sta
I’ll take your new patches and make one for openwrt and, recompile 
Thanks;
Philippe




Le 20 juil. 2014 à 14:31, Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx> a écrit :

> This patchset adds support for estimation of the ack timeout (dynack) in ath9k
> driver. Ath9k dynack computes the ack timeout based on ack frame RX timestamp,
> TX frame timestamp and frame duration.
> 
> Ath9k dynack has been tested in indoor environment using AR9223/AR9280 chipset
> (running 3.16.0-rc5 kernel) and on 9Km PtoP link using AR9280 chipset
> (running OpenWRT trunk, compat-wireless-2014-05-22)
> 
> Changes since RFCv2:
> - disable dynack by default
> - add ath9k_enable_dynack() method to enable ack timeout estimation algorithm
> - remove dynack entry from ath9k debugfs
> 
> Changes since RFCv1:
> - use ISC license instead of GPLv2 one
> - use an inline method instead of a macro for EWMA calculation
> - use powers of two weights in EWMA calculation
> - fix typos
> - add ath_dynack_node_init/ath_dynack_node_deinit methods
> - use different logic to enable/disable dynack processing
> 
> Lorenzo Bianconi (10):
>  ath9k: export methods related to ack timeout estimation
>  ath9k: add duration field to ath_tx_status
>  ath9k: add dynamic ack timeout estimation
>  ath9k: add config for (en|dis)abling ack timeout estimation
>  ath9k: do not overwrite ack timeout estimation
>  ath9k: add sampling methods for (tx|rx) timestamp
>  ath9k: enable control frame reception
>  ath9k: add debugfs support for dynack
>  ath9k: add ath9k_enable_dynack() method
>  ath9k: initialize ath_node linked list
> 
> drivers/net/wireless/ath/ath.h              |   2 +
> drivers/net/wireless/ath/ath9k/Kconfig      |   7 +
> drivers/net/wireless/ath/ath9k/Makefile     |   3 +
> drivers/net/wireless/ath/ath9k/ar9002_mac.c |   7 +
> drivers/net/wireless/ath/ath9k/ar9003_mac.c |   9 +
> drivers/net/wireless/ath/ath9k/ath9k.h      |   3 +
> drivers/net/wireless/ath/ath9k/debug.c      |  28 +++
> drivers/net/wireless/ath/ath9k/dynack.c     | 345 ++++++++++++++++++++++++++++
> drivers/net/wireless/ath/ath9k/dynack.h     |  96 ++++++++
> drivers/net/wireless/ath/ath9k/hw.c         |  16 +-
> drivers/net/wireless/ath/ath9k/hw.h         |   7 +
> drivers/net/wireless/ath/ath9k/mac.h        |   1 +
> drivers/net/wireless/ath/ath9k/main.c       |  38 +++
> drivers/net/wireless/ath/ath9k/recv.c       |   7 +-
> drivers/net/wireless/ath/ath9k/xmit.c       |   5 +
> 15 files changed, 570 insertions(+), 4 deletions(-)
> create mode 100644 drivers/net/wireless/ath/ath9k/dynack.c
> create mode 100644 drivers/net/wireless/ath/ath9k/dynack.h
> 
> -- 
> 1.9.1
> 

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