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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_mirred.c
parentc15ab236d69dd6dad24541400f460c47853803f8 (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_mirred.c')
-rw-r--r--net/sched/act_mirred.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 1b5549ababd4..416627c66f08 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -28,7 +28,6 @@
#include <linux/tc_act/tc_mirred.h>
#include <net/tc_act/tc_mirred.h>
-#define MIRRED_TAB_MASK 7
static LIST_HEAD(mirred_list);
static DEFINE_SPINLOCK(mirred_list_lock);
@@ -94,7 +93,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
return -EINVAL;
parm = nla_data(tb[TCA_MIRRED_PARMS]);
- exists = tcf_hash_check(tn, parm->index, a, bind);
+ exists = tcf_idr_check(tn, parm->index, a, bind);
if (exists && bind)
return 0;
@@ -106,14 +105,14 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
break;
default:
if (exists)
- tcf_hash_release(*a, bind);
+ tcf_idr_release(*a, bind);
return -EINVAL;
}
if (parm->ifindex) {
dev = __dev_get_by_index(net, parm->ifindex);
if (dev == NULL) {
if (exists)
- tcf_hash_release(*a, bind);
+ tcf_idr_release(*a, bind);
return -ENODEV;
}
mac_header_xmit = dev_is_mac_header_xmit(dev);
@@ -124,13 +123,13 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
if (!exists) {
if (dev == NULL)
return -EINVAL;
- ret = tcf_hash_create(tn, parm->index, est, a,
- &act_mirred_ops, bind, true);
+ ret = tcf_idr_create(tn, parm->index, est, a,
+ &act_mirred_ops, bind, true);
if (ret)
return ret;
ret = ACT_P_CREATED;
} else {
- tcf_hash_release(*a, bind);
+ tcf_idr_release(*a, bind);
if (!ovr)
return -EEXIST;
}
@@ -152,7 +151,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
spin_lock_bh(&mirred_list_lock);
list_add(&m->tcfm_list, &mirred_list);
spin_unlock_bh(&mirred_list_lock);
- tcf_hash_insert(tn, *a);
+ tcf_idr_insert(tn, *a);
}
return ret;
@@ -283,7 +282,7 @@ static int tcf_mirred_search(struct net *net, struct tc_action **a, u32 index)
{
struct tc_action_net *tn = net_generic(net, mirred_net_id);
- return tcf_hash_search(tn, a, index);
+ return tcf_idr_search(tn, a, index);
}
static int mirred_device_event(struct notifier_block *unused,
@@ -344,7 +343,7 @@ static __net_init int mirred_init_net(struct net *net)
{
struct tc_action_net *tn = net_generic(net, mirred_net_id);
- return tc_action_net_init(tn, &act_mirred_ops, MIRRED_TAB_MASK);
+ return tc_action_net_init(tn, &act_mirred_ops);
}
static void __net_exit mirred_exit_net(struct net *net)