On Wed, 8 Jul 2020 17:24:44 +0200 Christoph Hellwig <h...@lst.de> wrote:
> Note that as-is this breaks the XSK buffer pool, which unfortunately > poked directly into DMA internals. A fix for that is already queued > up in the netdev tree. > > Jesper and XDP gang: this should not regress any performance as > the dma-direct calls are now inlined into the out of line DMA mapping > calls. But if you can verify the performance numbers that would be > greatly appreciated. From a superficial review of the patches, they look okay to me. I don't have time to run a performance benchmark (before I go on vacation). I hoped Björn could test/benchmark this(?), given (as mentioned) this also affect XSK / AF_XDP performance. -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
