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(parent: e9229ff) | patch
net: ethernet: mtk_eth_soc: cache HW pointer of last freed TX descriptor
authorFelix Fietkau <nbd@nbd.name>
Fri, 23 Apr 2021 05:21:03 +0000 (22:21 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 23 Apr 2021 20:31:58 +0000 (13:31 -0700)
commit4e6bf609569c59b6bd6acf4a607c096cbd820d79
treed7b6e993b68b1a25fbd2b952d0d9cea1f424356ftree | snapshot
parente9229ffd550b2d8c4997c67a501dbc3919fd4e26commit | diff
net: ethernet: mtk_eth_soc: cache HW pointer of last freed TX descriptor

The value is only updated by the CPU, so it is cheaper to access from the
ring data structure than from a hardware register.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mediatek/mtk_eth_soc.c diff | blob | history
drivers/net/ethernet/mediatek/mtk_eth_soc.h diff | blob | history
Domain: System / Kernel;