diff options
| author | Jiri Pirko <jiri@mellanox.com> | 2018-01-17 13:46:46 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-17 22:53:56 +0300 |
| commit | 4861738775d70e0165d04fe014f32b41bcb5414a (patch) | |
| tree | 496b129c4d9aee0385f924d1e20fc1b0ea854795 /include/net/pkt_cls.h | |
| parent | a9b19443edbaac97c5c094f3cc903c1f1548b3f5 (diff) | |
| download | linux-4861738775d70e0165d04fe014f32b41bcb5414a.tar.xz | |
net: sched: introduce shared filter blocks infrastructure
Allow qdiscs to share filter blocks among them. Each qdisc type has to
use block get/put extended modifications that enable sharing.
Shared blocks are tracked within each net namespace and identified
by u32 index. This index is passed from user during the qdisc creation.
If user passes index that is not used by any other qdisc, new block
is created. If user passes index that is already used, the existing
block will be re-used.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/pkt_cls.h')
| -rw-r--r-- | include/net/pkt_cls.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index cc23c041a6d7..c40d60e6a883 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -29,6 +29,7 @@ struct tcf_block_ext_info { enum tcf_block_binder_type binder_type; tcf_chain_head_change_t *chain_head_change; void *chain_head_change_priv; + u32 block_index; }; struct tcf_block_cb; @@ -48,8 +49,14 @@ void tcf_block_put(struct tcf_block *block); void tcf_block_put_ext(struct tcf_block *block, struct Qdisc *q, struct tcf_block_ext_info *ei); +static inline bool tcf_block_shared(struct tcf_block *block) +{ + return block->index; +} + static inline struct Qdisc *tcf_block_q(struct tcf_block *block) { + WARN_ON(tcf_block_shared(block)); return block->q; } |