netdev - [PATCH net-next 2/2] bonding: support xfrm state update

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Message-ID: <20240816035518.203704-3-liuhangbin@gmail.com>
Date: Fri, 16 Aug 2024 11:55:18 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: Jay Vosburgh <j.vosburgh@...il.com>,
	"David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Tariq Toukan <tariqt@...dia.com>,
	Jianbo Liu <jianbol@...dia.com>,
	Sabrina Dubroca <sd@...asysnail.net>,
	Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCH net-next 2/2] bonding: support xfrm state update

The patch add xfrm statistics update for bonding IPsec offload.

Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 drivers/net/bonding/bond_main.c | 38 +++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4e3d7979fe01..9a7caf677c71 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -666,11 +666,49 @@ static void bond_advance_esn_state(struct xfrm_state *xs)
 	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 *bond_dev = xs->xso.dev;
+	struct bond_ipsec *ipsec;
+	struct bonding *bond;
+	struct slave *slave;
+
+	if (!bond_dev)
+		return;
+
+	rcu_read_lock();
+	bond = netdev_priv(bond_dev);
+	slave = rcu_dereference(bond->curr_active_slave);
+
+	if (!slave)
+		goto out;
+
+	if (!xs->xso.real_dev)
+		goto out;
+
+	WARN_ON(xs->xso.real_dev != slave->dev);
+
+	if (!slave->dev->xfrmdev_ops ||
+	    !slave->dev->xfrmdev_ops->xdo_dev_state_update_stats) {
+		slave_warn(bond_dev, slave->dev, "%s: no slave xdo_dev_state_update_stats\n", __func__);
+		goto out;
+	}
+
+	slave->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_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 */
 
-- 
2.45.0