net: act_mirred: allow statistic updates from offloaded actions

Implement .stats_update() callback.  The implementation
is generic and can be reused by other simple actions if
needed.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 1c76387c5d9c5ecac30244860bb522e55b8ed978..667dc382df82bf1b7f884b7d60b0907826cc21a3 100644 (file)
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -204,6 +204,13 @@ out:
        return retval;
 }
 
+static void tcf_stats_update(struct tc_action *a, u64 bytes, u32 packets,
+                            u64 lastuse)
+{
+       tcf_lastuse_update(&a->tcfa_tm);
+       _bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
+}
+
 static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind,
                           int ref)
 {
@@ -281,6 +288,7 @@ static struct tc_action_ops act_mirred_ops = {
        .type           =       TCA_ACT_MIRRED,
        .owner          =       THIS_MODULE,
        .act            =       tcf_mirred,
+       .stats_update   =       tcf_stats_update,
        .dump           =       tcf_mirred_dump,
        .cleanup        =       tcf_mirred_release,
        .init           =       tcf_mirred_init,