RE: [PATCH net-next v3 2/5] lan743x: sync only the received area of an rx ring buffer

2021-02-16 Thread Bryan.Whitehead
> From: Sven Van Asbroeck > > 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

Re: [PATCH net-next v3 2/5] lan743x: sync only the received area of an rx ring buffer

2021-02-16 Thread Sven Van Asbroeck
Hi Bryan, On Tue, Feb 16, 2021 at 3:50 PM wrote: > > Looks Good, Thanks Sven > Our testing is in progress, We will let you know our results soon. > > Reviewed-by: Bryan Whitehead > Thank you Bryan, I really appreciate your help and expertise.

[PATCH net-next v3 2/5] lan743x: sync only the received area of an rx ring buffer

2021-02-15 Thread Sven Van Asbroeck
From: Sven Van Asbroeck 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