From: David S. Miller Date: Fri, 4 Nov 2016 18:56:17 +0000 (-0400) Subject: Merge branch 'nfp-ring-reconfig-and-xdp-support' X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95ae31a9a95c1c27f4a260152e7b42e2254f26b5;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git Merge branch 'nfp-ring-reconfig-and-xdp-support' Jakub Kicinski says: ==================== ring reconfiguration and XDP support This set adds support for ethtool channel API and XDP. I kick off with ethtool get_channels() implementation. set_channels() needs some preparations to get right. I follow the prepare/commit paradigm and allocate all resources before stopping the device. It has already been done for ndo_change_mtu and ethtool set_ringparam(), it makes sense now to consolidate all the required logic in one place. XDP support requires splitting TX rings into two classes - for the stack and for XDP. The ring structures are identical. The differences are in how they are connected to IRQ vector structs and how the completion/cleanup works. When XDP is enabled I switch from the frag allocator to page-per-packet and map buffers BIDIRECTIONALly. Last but not least XDP offload is added (the patch just takes care of the small formal differences between cls_bpf and XDP). There is a tiny & trivial DebugFS patch in the mix, I hope it can be taken via net-next provided we have the right Acks. Resending with improved commit message and CCing more people on patch 10. ==================== Signed-off-by: David S. Miller --- 95ae31a9a95c1c27f4a260152e7b42e2254f26b5