netdev - [PATCH net-next 9/9] net/mlx5: E-switch, Supporting setting devlink port function mac address

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Message-Id: <20200619033255.163-10-parav@mellanox.com>
Date:   Fri, 19 Jun 2020 03:32:55 +0000
From:   Parav Pandit <parav@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     saeedm@...lanox.com, davem@...emloft.net, kuba@...nel.org,
        jiri@...lanox.com, Parav Pandit <parav@...lanox.com>,
        Roi Dayan <roid@...lanox.com>
Subject: [PATCH net-next 9/9] net/mlx5: E-switch, Supporting setting devlink port function mac address

Enable user to set mac address of the PCI PF and VF port function.

Signed-off-by: Parav Pandit <parav@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/devlink.c |  1 +
 .../net/ethernet/mellanox/mlx5/core/eswitch.c | 36 +++++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/eswitch.h |  4 +++
 3 files changed, 41 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
index 3177d2458fa5..c709e9a385f6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -114,6 +114,7 @@ static const struct devlink_ops mlx5_devlink_ops = {
 	.eswitch_encap_mode_set = mlx5_devlink_eswitch_encap_mode_set,
 	.eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get,
 	.port_function_hw_addr_get = mlx5_devlink_port_function_hw_addr_get,
+	.port_function_hw_addr_set = mlx5_devlink_port_function_hw_addr_set,
 #endif
 	.flash_update = mlx5_devlink_flash_update,
 	.info_get = mlx5_devlink_info_get,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 2c08411e34ee..c656c9f081c1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1898,6 +1898,42 @@ int mlx5_devlink_port_function_hw_addr_get(struct devlink *devlink,
 	return err;
 }
 
+int mlx5_devlink_port_function_hw_addr_set(struct devlink *devlink,
+					   struct devlink_port *port,
+					   const u8 *hw_addr, int hw_addr_len,
+					   struct netlink_ext_ack *extack)
+{
+	struct mlx5_eswitch *esw;
+	struct mlx5_vport *vport;
+	int err = -EOPNOTSUPP;
+	u16 vport_num;
+
+	esw = mlx5_devlink_eswitch_get(devlink);
+	if (IS_ERR(esw)) {
+		NL_SET_ERR_MSG_MOD(extack, "Eswitch doesn't support set hw_addr");
+		return PTR_ERR(esw);
+	}
+
+	vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index);
+	if (!is_port_function_supported(esw, vport_num)) {
+		NL_SET_ERR_MSG_MOD(extack, "Port doesn't support set hw_addr");
+		return -EINVAL;
+	}
+	vport = mlx5_eswitch_get_vport(esw, vport_num);
+	if (IS_ERR(vport)) {
+		NL_SET_ERR_MSG_MOD(extack, "Invalid port");
+		return PTR_ERR(vport);
+	}
+
+	mutex_lock(&esw->state_lock);
+	if (vport->enabled)
+		err = mlx5_esw_set_vport_mac_locked(esw, vport, hw_addr);
+	else
+		NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
+	mutex_unlock(&esw->state_lock);
+	return err;
+}
+
 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
 				 u16 vport, int link_state)
 {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 19cd0af7afda..67e09902bd88 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -454,6 +454,10 @@ int mlx5_devlink_port_function_hw_addr_get(struct devlink *devlink,
 					   struct devlink_port *port,
 					   u8 *hw_addr, int *hw_addr_len,
 					   struct netlink_ext_ack *extack);
+int mlx5_devlink_port_function_hw_addr_set(struct devlink *devlink,
+					   struct devlink_port *port,
+					   const u8 *hw_addr, int hw_addr_len,
+					   struct netlink_ext_ack *extack);
 
 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
 
-- 
2.19.2