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| author |   Martin KaFai Lau <kafai@fb.com> | 2016-12-07 15:53:12 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-12-08 14:25:13 -0500 |
| commit | b45f0674b997ee769907d6092dfa9ee8f59bb51d (patch) | |
| tree | 04e52255772e0556b7770147d4195bbdf969d711 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | bpf: xdp: Allow head adjustment in XDP prog (diff) | |
| download | linux-dev-b45f0674b997ee769907d6092dfa9ee8f59bb51d.tar.xz linux-dev-b45f0674b997ee769907d6092dfa9ee8f59bb51d.zip | |
mlx4: xdp: Allow raising MTU up to one page minus eth and vlan hdrs
When XDP is active in mlx4, mlx4 is using one page/pkt.
At the same time (i.e. when XDP is active), it is currently
limiting MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN)
which is 1514 in x86. AFAICT, we can at least raise the MTU
limit up to PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) which this
patch is doing. It will be useful in the next patch which
allows XDP program to extend the packet by adding new header(s).
Note: In the earlier XDP patches, there is already existing guard
to ensure the page/pkt scheme only applies when XDP is active
in mlx4.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions