ath10k: use msdu headroom to store txfrag

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Instead of allocating sk_buff for a mere 16-byte
tx fragment list buffer use headroom of the
original msdu sk_buff.

This decreases CPU cache pressure and improves
performance.

Measured improvement on AP135 is 560mbps ->
590mbps of UDP TX briding traffic.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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This commit is contained in:

Michal Kazior 2013-09-18 14:43:22 +02:00 • committed by Kalle Valo

parent 2f3773bcaf

commit 1f8bb1518e

4 changed files with 53 additions and 53 deletions

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4

drivers/net/wireless/ath/ath10k/core.h

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82

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

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4

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

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16

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

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