net/mlx5_core: Break down the vport mac address query function

Introduce a new function called mlx5_query_nic_vport_context().
This function gets all the NIC vport attributes from the device.

The MAC address is just one of the NIC vport attributes, so
mlx5_query_nic_vport_mac_address() is now just a wrapper function
above mlx5_query_nic_vport_context().

More NIC vport attributes will be used in following commits.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index b94177e..54ab63b 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -57,12 +57,25 @@ u8 mlx5_query_vport_state(struct mlx5_core_dev *mdev, u8 opmod)
 }
 EXPORT_SYMBOL(mlx5_query_vport_state);
 
+static int mlx5_query_nic_vport_context(struct mlx5_core_dev *mdev, u32 *out,
+                                       int outlen)
+{
+       u32 in[MLX5_ST_SZ_DW(query_nic_vport_context_in)];
+
+       memset(in, 0, sizeof(in));
+
+       MLX5_SET(query_nic_vport_context_in, in, opcode,
+                MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT);
+
+       return mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
+}
+
 void mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr)
 {
-       u32  in[MLX5_ST_SZ_DW(query_nic_vport_context_in)];
        u32 *out;
        int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
        u8 *out_addr;
+       int err;
 
        out = mlx5_vzalloc(outlen);
        if (!out)
@@ -71,15 +84,9 @@ void mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr)
        out_addr = MLX5_ADDR_OF(query_nic_vport_context_out, out,
                                nic_vport_context.permanent_address);
 
-       memset(in, 0, sizeof(in));
-
-       MLX5_SET(query_nic_vport_context_in, in, opcode,
-                MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT);
-
-       memset(out, 0, outlen);
-       mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
-
-       ether_addr_copy(addr, &out_addr[2]);
+       err = mlx5_query_nic_vport_context(mdev, out, outlen);
+       if (!err)
+               ether_addr_copy(addr, &out_addr[2]);
 
        kvfree(out);
 }