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author | David S. Miller <davem@davemloft.net> | 2016-12-08 14:25:14 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2016-12-08 14:25:14 -0500 |
commit | 293bfa9b48614137c1514bd091dff8e2a894dad7 (patch) | |
tree | e772f55d041956a3e07a487b48b42df8a0b830bf /drivers/net/ethernet/chelsio/cxgb4vf | |
parent | Merge branch 'lan7801-mac-only' (diff) | |
parent | bpf: xdp: Add XDP example for head adjustment (diff) | |
download | linux-dev-293bfa9b48614137c1514bd091dff8e2a894dad7.tar.xz linux-dev-293bfa9b48614137c1514bd091dff8e2a894dad7.zip |
Merge branch 'xdp-head-adjustment'
Martin KaFai Lau says:
====================
Allow head adjustment in XDP prog
This series adds a helper to allow head adjusting in XDP prog. mlx4
driver has been modified to support this feature. An example is written
to encapsulate a packet with an IPv4/v6 header and then XDP_TX it
out.
v4:
1. Remove XDP_QUERY_FEATURES command. Instead, check
the prog->xdp_adjust_head bit inside the driver itself
during XDP_SETUP_PROG in patch 1of4.
Thanks for everybody's ideas.
2. Nit changes on sample code per Jesper
v3:
1. Check if the driver supports head adjustment before
setting the xdp_prog fd to the device in patch 1of4.
2. Remove the page alignment assumption on the data_hard_start.
Instead, add data_hard_start to the struct xdp_buff and the
driver has to fill it if it supports head adjustment.
3. Keep the wire MTU as before in mlx4
4. Set map0_byte_count to PAGE_SIZE in patch 3of4
v2:
1. Make a variable name change in bpf_xdp_adjust_head() in patch 1
2. Ensure no less than ETH_HLEN data in bpf_xdp_adjust_head() in patch 1
3. Some clarifications in commit log messages of patch 2 and 3
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4vf')
0 files changed, 0 insertions, 0 deletions