|author||David S. Miller <email@example.com>||2018-04-17 10:50:30 -0400|
|committer||David S. Miller <firstname.lastname@example.org>||2018-04-17 11:17:58 -0400|
|parent||liquidio: Enhanced ethtool stats (diff)|
|parent||xdp: avoid leaking info stored in frame data on page reuse (diff)|
Merge branch 'XDP-redirect-memory-return-API'
Jesper Dangaard Brouer says: ==================== XDP redirect memory return API Submitted against net-next, as it contains NIC driver changes. This patchset works towards supporting different XDP RX-ring memory allocators. As this will be needed by the AF_XDP zero-copy mode. The patchset uses mlx5 as the sample driver, which gets implemented XDP_REDIRECT RX-mode, but not ndo_xdp_xmit (as this API is subject to change thought the patchset). A new struct xdp_frame is introduced (modeled after cpumap xdp_pkt). And both ndo_xdp_xmit and the new xdp_return_frame end-up using this. Support for a driver supplied allocator is implemented, and a refurbished version of page_pool is the first return allocator type introduced. This will be a integration point for AF_XDP zero-copy. The mlx5 driver evolve into using the page_pool, and see a performance increase (with ndo_xdp_xmit out ixgbe driver) from 6Mpps to 12Mpps. The patchset stop at 16 patches (one over limit), but more API changes are planned. Specifically extending ndo_xdp_xmit and xdp_return_frame APIs to support bulking. As this will address some known limits. V2: Updated according to Tariq's feedback V3: Updated based on feedback from Jason Wang and Alex Duyck V4: Updated based on feedback from Tariq and Jason V5: Fix SPDX license, add Tariq's reviews, improve patch desc for perf test V6: Updated based on feedback from Eric Dumazet and Alex Duyck V7: Adapt to i40e that got XDP_REDIRECT support in-between V8: Updated based on feedback kbuild test robot, and adjust for mlx5 changes page_pool only compiled into kernel when drivers Kconfig 'select' feature V9: Remove some inline statements, let compiler decide what to inline Fix return value in virtio_net driver Adjust for mlx5 changes in-between submissions V10: Minor adjust for mlx5 requested by Tariq Resubmit against net-next V11: avoid leaking info stored in frame data on page reuse ==================== Acked-by: Alexei Starovoitov <email@example.com> Signed-off-by: David S. Miller <firstname.lastname@example.org>
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