diff options
| author |   Jiri Pirko <jiri@mellanox.com> | 2017-05-17 11:07:55 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-05-17 15:22:13 -0400 |
| commit | 6529eaba33f0465fc6d228e1d05b1745f7d0e8c9 (patch) | |
| tree | d0caf42e125d3554262bd7c2fb66f232a5a7c90a /net/sched/sch_dsmark.c | |
| parent | net: sched: move tc_classify function to cls_api.c (diff) | |
| download | linux-dev-6529eaba33f0465fc6d228e1d05b1745f7d0e8c9.tar.xz linux-dev-6529eaba33f0465fc6d228e1d05b1745f7d0e8c9.zip | |
net: sched: introduce tcf block infractructure
Currently, the filter chains are direcly put into the private structures
of qdiscs. In order to be able to have multiple chains per qdisc and to
allow filter chains sharing among qdiscs, there is a need for common
object that would hold the chains. This introduces such object and calls
it "tcf_block".
Helpers to get and put the blocks are provided to be called from
individual qdisc code. Also, the original filter_list pointers are left
in qdisc privs to allow the entry into tcf_block processing without any
added overhead of possible multiple pointer dereference on fast path.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_dsmark.c')
| -rw-r--r-- | net/sched/sch_dsmark.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index 7bc638d2e67f..ba45102cff94 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -44,6 +44,7 @@ struct mask_value { struct dsmark_qdisc_data { struct Qdisc *q; struct tcf_proto __rcu *filter_list; + struct tcf_block *block; struct mask_value *mv; u16 indices; u8 set_tc_index; @@ -183,11 +184,11 @@ ignore: } } -static inline struct tcf_proto __rcu **dsmark_find_tcf(struct Qdisc *sch, - unsigned long cl) +static struct tcf_block *dsmark_tcf_block(struct Qdisc *sch, unsigned long cl) { struct dsmark_qdisc_data *p = qdisc_priv(sch); - return &p->filter_list; + + return p->block; } /* --------------------------- Qdisc operations ---------------------------- */ @@ -332,7 +333,7 @@ static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) { struct dsmark_qdisc_data *p = qdisc_priv(sch); struct nlattr *tb[TCA_DSMARK_MAX + 1]; - int err = -EINVAL; + int err; u32 default_index = NO_DEFAULT_INDEX; u16 indices; int i; @@ -342,6 +343,10 @@ static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) if (!opt) goto errout; + err = tcf_block_get(&p->block, &p->filter_list); + if (err) + return err; + err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy, NULL); if (err < 0) goto errout; @@ -400,7 +405,7 @@ static void dsmark_destroy(struct Qdisc *sch) pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); - tcf_destroy_chain(&p->filter_list); + tcf_block_put(p->block); qdisc_destroy(p->q); if (p->mv != p->embedded) kfree(p->mv); @@ -468,7 +473,7 @@ static const struct Qdisc_class_ops dsmark_class_ops = { .change = dsmark_change, .delete = dsmark_delete, .walk = dsmark_walk, - .tcf_chain = dsmark_find_tcf, + .tcf_block = dsmark_tcf_block, .bind_tcf = dsmark_bind_filter, .unbind_tcf = dsmark_put, .dump = dsmark_dump_class, |