* [ath9k-devel] SW queuing stopped during transmissions
@ 2013-07-19 6:59 shinnazar
2013-07-19 15:56 ` shinnazar
0 siblings, 1 reply; 2+ messages in thread
From: shinnazar @ 2013-07-19 6:59 UTC (permalink / raw)
To: ath9k-devel
Hi all,
I want to keep the TX software queue always filled with frames.
But, according to my observations mac80211 stops queuing frames into SW
queue during the transmission.
However I couldn't find the point where should I dig in order to manipulate
the SW queuing for my purpose.
Any ideas?
Warm regards,
Shinnazar.
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* [ath9k-devel] SW queuing stopped during transmissions
2013-07-19 6:59 [ath9k-devel] SW queuing stopped during transmissions shinnazar
@ 2013-07-19 15:56 ` shinnazar
0 siblings, 0 replies; 2+ messages in thread
From: shinnazar @ 2013-07-19 15:56 UTC (permalink / raw)
To: ath9k-devel
More details on these,
ieee80211_subif_start_xmit() function isn't receiving any frame from kernel
while the transmission is going on. This continues until block ack will be
received i.e., until ATH9K_INT_TX interrupt will be released. Because of
this, SW queue sometimes cannot provide the HW queue with necessary number
of frames. I didn't understand what was the logic behind such a method for
implementation, but this feature causes significant performance degradation
under usual channel conditions.
From: shinnazar [mailto:seytnazarovsho at ynu.ac.kr]
Sent: Friday, July 19, 2013 3:59 PM
To: ath9k-devel at lists.ath9k.org
Subject: [ath9k-devel] SW queuing stopped during transmissions
Hi all,
I want to keep the TX software queue always filled with frames.
But, according to my observations mac80211 stops queuing frames into SW
queue during the transmission.
However I couldn't find the point where should I dig in order to manipulate
the SW queuing for my purpose.
Any ideas?
Warm regards,
Shinnazar.
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2013-07-19 6:59 [ath9k-devel] SW queuing stopped during transmissions shinnazar
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