net_sched: sch_sfq: handle bigger packets

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SFQ has an assumption on dealing with packets smaller than 64KB.

Even before BIG TCP, TCA_STAB can provide arbitrary big values
in qdisc_pkt_len(skb)

It is time to switch (struct sfq_slot)->allot to a 32bit field.

sizeof(struct sfq_slot) is now 64 bytes, giving better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20241008111603.653140-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Eric Dumazet 2024-10-08 11:16:03 +00:00 • committed by Jakub Kicinski

parent 0a316b16a6

commit e4650d7ae4

1 changed files with 13 additions and 26 deletions

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net/sched/sch_sfq.c

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