path: root/net/sched/act_skbedit.c
diff options
authorChris Mi <chrism@mellanox.com>2017-08-30 02:31:59 -0400
committerDavid S. Miller <davem@davemloft.net>2017-08-30 14:38:51 -0700
commit65a206c01e8e7ffe971477a36419422099216eff (patch)
treeea72c10c42996dc7d070968d45d86880fde71fac /net/sched/act_skbedit.c
parentnet/sched: Change cls_flower to use IDR (diff)
net/sched: Change act_api and act_xxx modules to use IDR
Typically, each TC filter has its own action. All the actions of the same type are saved in its hash table. But the hash buckets are too small that it degrades to a list. And the performance is greatly affected. For example, it takes about 0m11.914s to insert 64K rules. If we convert the hash table to IDR, it only takes about 0m1.500s. The improvement is huge. But please note that the test result is based on previous patch that cls_flower uses IDR. Signed-off-by: Chris Mi <chrism@mellanox.com> 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/act_skbedit.c')
1 files changed, 8 insertions, 10 deletions
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 6b3e65d7de0c..59949d61f20d 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -27,8 +27,6 @@
#include <linux/tc_act/tc_skbedit.h>
#include <net/tc_act/tc_skbedit.h>
-#define SKBEDIT_TAB_MASK 15
static unsigned int skbedit_net_id;
static struct tc_action_ops act_skbedit_ops;
@@ -118,18 +116,18 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
parm = nla_data(tb[TCA_SKBEDIT_PARMS]);
- exists = tcf_hash_check(tn, parm->index, a, bind);
+ exists = tcf_idr_check(tn, parm->index, a, bind);
if (exists && bind)
return 0;
if (!flags) {
- tcf_hash_release(*a, bind);
+ tcf_idr_release(*a, bind);
return -EINVAL;
if (!exists) {
- ret = tcf_hash_create(tn, parm->index, est, a,
- &act_skbedit_ops, bind, false);
+ ret = tcf_idr_create(tn, parm->index, est, a,
+ &act_skbedit_ops, bind, false);
if (ret)
return ret;
@@ -137,7 +135,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
} else {
d = to_skbedit(*a);
- tcf_hash_release(*a, bind);
+ tcf_idr_release(*a, bind);
if (!ovr)
return -EEXIST;
@@ -163,7 +161,7 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
if (ret == ACT_P_CREATED)
- tcf_hash_insert(tn, *a);
+ tcf_idr_insert(tn, *a);
return ret;
@@ -221,7 +219,7 @@ static int tcf_skbedit_search(struct net *net, struct tc_action **a, u32 index)
struct tc_action_net *tn = net_generic(net, skbedit_net_id);
- return tcf_hash_search(tn, a, index);
+ return tcf_idr_search(tn, a, index);
static struct tc_action_ops act_skbedit_ops = {
@@ -240,7 +238,7 @@ static __net_init int skbedit_init_net(struct net *net)
struct tc_action_net *tn = net_generic(net, skbedit_net_id);
- return tc_action_net_init(tn, &act_skbedit_ops, SKBEDIT_TAB_MASK);
+ return tc_action_net_init(tn, &act_skbedit_ops);
static void __net_exit skbedit_exit_net(struct net *net)