cls_flower: Support multiple masks per priority

Browse source

Currently flower doesn't support inserting filters with different masks
on a single priority, even if the actual flows (key + mask) inserted
aren't overlapping, as with the use case of offloading openvswitch
datapath flows. Instead one must go up one level, and assign different
priorities for each mask, which will create a different flower
instances.

This patch opens flower to support more than one mask per priority,
and a single flower instance. It does so by adding another hash table
on top of the existing one which will store the different masks,
and the filters that share it.

The user is left with the responsibility of ensuring non overlapping
flows, otherwise precedence is not guaranteed.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Paul Blakey 2018-04-30 14:28:30 +03:00 • committed by David S. Miller

parent 9908b3630f

commit 05cd271fd6

1 changed files with 174 additions and 101 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

275

net/sched/cls_flower.c

View file