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i40e: support for XDP

Daniel Borkmann intel-wired-lan 1 version New

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  1. v7 Latest0 of 2 patches 0 repliesNew

Patches in v7 No applies recorded yet

None of the 2 patches the cover letter announces are in this archive.

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Cover letter [Intel-wired-lan] [PATCH v7 0/2] i40e: support for XDP
Quoted 8 lines · Alexander Duyck

This series looks good to me.

Acked-by Alexander Duyck <[email protected]>
Quoted 3 lines · Bj?rn T?pel

From: Bj?rn T?pel <[email protected]>

This series adds XDP support for i40e-based NICs.

Awesome, very nice! Will these land this net-next cycle? :)

Quoted 16 lines
Quoted 16 lines

The first patch wires up ndo_xdp and implements XDP_DROP semantics for all actions. The second patch adds egress support via the XDP_TX action.

Performance numbers (40GbE port, 64B packets) for xdp1 and xdp2 programs, from samples/bpf/:

IOMMU | xdp1 | xdp2
---------------------------+-----------+-----------

  iommu=off                  | 29.7 Mpps | 17.1 Mpps
  iommu=pt intel_iommu=on    | 29.7 Mpps | 11.6 Mpps
  iommu=on intel_iommu=on    | 21.8 Mpps |  3.7 Mpps

Future improvements, not covered by the patches:
* Proper debugfs support.
* i40evf support.

Read the cover letter in its thread