bonding: support xfrm state update

The patch add xfrm statistics update for bonding IPsec offload.

Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a6628b1f33a7bc7e572b743499f23a8eea1bc5af..47ab4ccd6fc10b1a8e7801617d4abde64efaa123 100644 (file)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -718,12 +718,37 @@ out:
        rcu_read_unlock();
 }
 
+/**
+ * bond_xfrm_update_stats - Update xfrm state
+ * @xs: pointer to transformer state struct
+ **/
+static void bond_xfrm_update_stats(struct xfrm_state *xs)
+{
+       struct net_device *real_dev;
+
+       rcu_read_lock();
+       real_dev = bond_ipsec_dev(xs);
+       if (!real_dev)
+               goto out;
+
+       if (!real_dev->xfrmdev_ops ||
+           !real_dev->xfrmdev_ops->xdo_dev_state_update_stats) {
+               pr_warn_ratelimited("%s: %s doesn't support xdo_dev_state_update_stats\n", __func__, real_dev->name);
+               goto out;
+       }
+
+       real_dev->xfrmdev_ops->xdo_dev_state_update_stats(xs);
+out:
+       rcu_read_unlock();
+}
+
 static const struct xfrmdev_ops bond_xfrmdev_ops = {
        .xdo_dev_state_add = bond_ipsec_add_sa,
        .xdo_dev_state_delete = bond_ipsec_del_sa,
        .xdo_dev_state_free = bond_ipsec_free_sa,
        .xdo_dev_offload_ok = bond_ipsec_offload_ok,
        .xdo_dev_state_advance_esn = bond_advance_esn_state,
+       .xdo_dev_state_update_stats = bond_xfrm_update_stats,
 };
 #endif /* CONFIG_XFRM_OFFLOAD */