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net: rtnetlink: add pacing_offload attribute to net_device

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Add a new flag to administratively control pacing offload.

The feature is disabled by default. That does not cause regressions, as no
driver advertises max_pacing_offload_horizon yet.

Also add NLA_REJECT for max_pacing_offload_horizon, in line with
other such read-only members of link-attrs.

Both fields can be read with

    ynl --family rt-link --do getlink \
        --json '{"ifname": "eth0"}' | grep pacing

And pacing offload enabled with

    ynl --family rt-link --do setlink \
        --json '{"ifname": "eth0", "pacing-offload": 1}'

Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260910171131.2532487-2-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Willem de Bruijn 2026-09-10 13:10:20 -04:00 • committed by Jakub Kicinski
commit f2109e90a5
5 changed files with 31 additions and 0 deletions
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