mt76: mt76x02: remove a copy call for usb speedup

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This patch removes a mt76_wr_copy call from the beacon path to hw.
The skb which is used in this place gets therefore build with txwi
inside its data. For mt76 usb drivers, this saves one synchronuous
copy call over usb, which lets the beacon work complete faster.

In mmio case, there is not enough headroom to put the txwi into the
skb, it is therefore using an additional mt76_wr_copy, which is fast
over mmio. Thanks Stanislaw for pointing this out.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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Markus Theil 2019-12-18 17:07:52 +01:00 • committed by Felix Fietkau

parent 7d2886404e

commit 5c48e60e57

1 changed files with 15 additions and 4 deletions

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19

drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c

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