net: mvneta: update frags bit before passing the xdp buffer to eBPF layer

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Update frags bit (XDP_FLAGS_HAS_FRAGS) in xdp_buff to notify
XDP/eBPF layer and XDP remote drivers if this is a "non-linear"
XDP buffer. Access skb_shared_info only if XDP_FLAGS_HAS_FRAGS flag
is set in order to avoid possible cache-misses.

Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c00a73097f8a35860d50dae4a36e6cc9ef7e172f.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Lorenzo Bianconi 2022-01-21 11:09:46 +01:00 • committed by Alexei Starovoitov

parent 2e88d4ff03

commit 76a676947b

1 changed files with 18 additions and 5 deletions

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drivers/net/ethernet/marvell/mvneta.c

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