netdev - [PATCH net-next 06/15] mlxsw: reg: Add Switch Port FDB Security Register

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Message-ID: <acba123f510d401a7eda4536caa33218767b75d9.1667902754.git.petrm@nvidia.com>
Date:   Tue, 8 Nov 2022 11:47:12 +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 06/15] mlxsw: reg: Add Switch Port FDB Security Register

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

Add the Switch Port FDB Security Register (SPFSR) that allows enabling
and disabling security checks on a given local port. In Linux terms, it
allows locking / unlocking a port.

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/reg.h | 34 +++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 7240af45ade5..f2d6f8654e04 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -2046,6 +2046,39 @@ static inline void mlxsw_reg_spvmlr_pack(char *payload, u16 local_port,
 	}
 }
 
+/* SPFSR - Switch Port FDB Security Register
+ * -----------------------------------------
+ * Configures the security mode per port.
+ */
+#define MLXSW_REG_SPFSR_ID 0x2023
+#define MLXSW_REG_SPFSR_LEN 0x08
+
+MLXSW_REG_DEFINE(spfsr, MLXSW_REG_SPFSR_ID, MLXSW_REG_SPFSR_LEN);
+
+/* reg_spfsr_local_port
+ * Local port.
+ * Access: Index
+ *
+ * Note: not supported for CPU port.
+ */
+MLXSW_ITEM32_LP(reg, spfsr, 0x00, 16, 0x00, 12);
+
+/* reg_spfsr_security
+ * Security checks.
+ * 0: disabled (default)
+ * 1: enabled
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, spfsr, security, 0x04, 31, 1);
+
+static inline void mlxsw_reg_spfsr_pack(char *payload, u16 local_port,
+					bool security)
+{
+	MLXSW_REG_ZERO(spfsr, payload);
+	mlxsw_reg_spfsr_local_port_set(payload, local_port);
+	mlxsw_reg_spfsr_security_set(payload, security);
+}
+
 /* SPVC - Switch Port VLAN Classification Register
  * -----------------------------------------------
  * Configures the port to identify packets as untagged / single tagged /
@@ -12762,6 +12795,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(svpe),
 	MLXSW_REG(sfmr),
 	MLXSW_REG(spvmlr),
+	MLXSW_REG(spfsr),
 	MLXSW_REG(spvc),
 	MLXSW_REG(spevet),
 	MLXSW_REG(smpe),
-- 
2.35.3