netdev - [PATCH net-next 07/15] mlxsw: spectrum: Add an API to configure security checks

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Date:   Tue, 8 Nov 2022 11:47:13 +0100
From:   Petr Machata <petrm@...dia.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Ivan Vecera <ivecera@...hat.com>, <netdev@...r.kernel.org>
CC:     Nikolay Aleksandrov <razor@...ckwall.org>,
        Roopa Prabhu <roopa@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        <bridge@...ts.linux-foundation.org>,
        Ido Schimmel <idosch@...dia.com>,
        "Hans J . Schultz" <netdev@...io-technology.com>,
        <mlxsw@...dia.com>
Subject: [PATCH net-next 07/15] mlxsw: spectrum: Add an API to configure security checks

From: Ido Schimmel <idosch@...dia.com>

Add an API to enable or disable security checks on a local port. It will
be used by subsequent patches when the 'BR_PORT_LOCKED' flag is toggled.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Signed-off-by: Petr Machata <petrm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 18 ++++++++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum.h |  5 ++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 04dc79da6024..b34366521914 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -466,6 +466,24 @@ int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
 	return err;
 }
 
+int mlxsw_sp_port_security_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable)
+{
+	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
+	char spfsr_pl[MLXSW_REG_SPFSR_LEN];
+	int err;
+
+	if (mlxsw_sp_port->security == enable)
+		return 0;
+
+	mlxsw_reg_spfsr_pack(spfsr_pl, mlxsw_sp_port->local_port, enable);
+	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spfsr), spfsr_pl);
+	if (err)
+		return err;
+
+	mlxsw_sp_port->security = enable;
+	return 0;
+}
+
 int mlxsw_sp_ethtype_to_sver_type(u16 ethtype, u8 *p_sver_type)
 {
 	switch (ethtype) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index c8ff2a6d7e90..bbc73324451d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -321,7 +321,8 @@ struct mlxsw_sp_port {
 	struct mlxsw_sp *mlxsw_sp;
 	u16 local_port;
 	u8 lagged:1,
-	   split:1;
+	   split:1,
+	   security:1;
 	u16 pvid;
 	u16 lag_id;
 	struct {
@@ -687,6 +688,8 @@ int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
 int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable);
 int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
 				   bool learn_enable);
+int mlxsw_sp_port_security_set(struct mlxsw_sp_port *mlxsw_sp_port,
+			       bool enable);
 int mlxsw_sp_ethtype_to_sver_type(u16 ethtype, u8 *p_sver_type);
 int mlxsw_sp_port_egress_ethtype_set(struct mlxsw_sp_port *mlxsw_sp_port,
 				     u16 ethtype);
-- 
2.35.3