diff options
| author | Song Yoong Siang <[email protected]> | 2025-07-16 15:48:46 +0000 |
|---|---|---|
| committer | Martin KaFai Lau <[email protected]> | 2025-07-16 23:36:11 +0000 |
| commit | ef57dc6f52e4949527f82a456cb9a637a55209ea (patch) | |
| tree | 19e70c1d5c1bf672a007af16f2155e9946257ecc /net/ipv4/tcp_ipv4.c | |
| parent | Merge branch 'bpf-tcp-exactly-once-socket-iteration' (diff) | |
| download | kernel-ef57dc6f52e4949527f82a456cb9a637a55209ea.tar.gz kernel-ef57dc6f52e4949527f82a456cb9a637a55209ea.zip | |
doc: xdp: Clarify driver implementation for XDP Rx metadata
Clarify that drivers must remove device-reserved metadata from the
data_meta area before passing frames to XDP programs.
Additionally, expand the explanation of how userspace and BPF programs
should coordinate the use of METADATA_SIZE, and add a detailed diagram
to illustrate pointer adjustments and metadata layout.
Also describe the requirements and constraints enforced by
bpf_xdp_adjust_meta().
Signed-off-by: Song Yoong Siang <[email protected]>
Signed-off-by: Martin KaFai Lau <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
0 files changed, 0 insertions, 0 deletions