Thread (16 messages) 16 messages, 6 authors, 2025-09-04

Re: [PATCH net-next v4 0/2] net/mlx5: Avoid payload in skb's linear part for better GRO-processing

From: Saeed Mahameed <saeed@kernel.org>
Date: 2025-08-29 22:43:12
Also in: bpf, linux-rdma

On 28 Aug 20:36, Christoph Paasch via B4 Relay wrote:
When LRO is enabled on the MLX, mlx5e_skb_from_cqe_mpwrq_nonlinear
copies parts of the payload to the linear part of the skb.

This triggers suboptimal processing in GRO, causing slow throughput,...

This patch series addresses this by using eth_get_headlen to compute the
size of the protocol headers and only copy those bits. This results in
a significant throughput improvement (detailled results in the specific
patch).

Signed-off-by: Christoph Paasch <redacted>
LGTM, I would love to take this to net-next-mlx5 and submit it back to
netdev after regression testing if that's ok? Christoph? 
Anyway I will wait for Jakub to mark this as "awaiting-upstream" or if he
applies it directly then fine.

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