net: sched: introduce terse dump flag

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Add new TCA_DUMP_FLAGS attribute and use it in cls API to request terse
filter output from classifiers with TCA_DUMP_FLAGS_TERSE flag. This option
is intended to be used to improve performance of TC filter dump when
userland only needs to obtain stats and not the whole classifier/action
data. Extend struct tcf_proto_ops with new terse_dump() callback that must
be defined by supporting classifier implementations.

Support of the options in specific classifiers and actions is
implemented in following patches in the series.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Vlad Buslov 2020-05-15 14:40:11 +03:00 • committed by David S. Miller

parent 2e186a2cf8

commit f8ab1807a9

3 changed files with 41 additions and 8 deletions

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4

include/net/sch_generic.h

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6

include/uapi/linux/rtnetlink.h

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39

net/sched/cls_api.c

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