ath10k: Improve performance by reducing tx_lock contention

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During tx completion, tx_lock is held for longer than required, preventing
efficient refill of htt->pending_tx. Refactor the code so that only MSDU
related operations are protected by the lock.

Improves downstream performance on a dual-core ARM Freescale LS1024A
(f.k.a. Mindspeed Comcerto 2000) AP with a 3x3 client from 495 to 580 Mbps.
Other CPU bound multicore systems may also benefit.

Signed-off-by: Denton Gentry <dgentry@google.com>
Signed-off-by: Avery Pennarun <apenwarr@google.com>
[mfaltesek@google.com: removed conflicting code for tracking msdu_ids.]
Signed-off-by: Marty Faltesek <mfaltesek@google.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

...

This commit is contained in:

Qi Zhou 2015-07-22 16:38:24 -04:00 • committed by Kalle Valo

parent 3413e97dbb

commit 005fb16131

3 changed files with 12 additions and 25 deletions

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12

drivers/net/wireless/ath/ath10k/htt_rx.c

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8

drivers/net/wireless/ath/ath10k/htt_tx.c

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17

drivers/net/wireless/ath/ath10k/txrx.c

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