RE: [PATCH net-next v3 2/5] lan743x: sync only the received area of an rx ring buffer
From: <Bryan.Whitehead@microchip.com>
Date: 2021-02-16 20:51:28
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From: Sven Van Asbroeck <redacted> On cpu architectures w/o dma cache snooping, dma_unmap() is a is a very expensive operation, because its resulting sync needs to invalidate cpu caches. Increase efficiency/performance by syncing only those sections of the lan743x's rx ring buffers that are actually in use. Signed-off-by: Sven Van Asbroeck <redacted> ---
Looks Good, Thanks Sven Our testing is in progress, We will let you know our results soon. Reviewed-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>