Merge branch 'linus-4.14-rc4-acp-prereq' of git://people.freedesktop.org/~agd5f/linux...

[sfrench/cifs-2.6.git] / drivers / net / ethernet / mellanox / mlx5 / core / port.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 1975d4388d4f77d2380209ad6bd6bfd9733e402e..e07061f565d6432d1c6c88b78468e038f20572cc 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -677,6 +677,27 @@ int mlx5_set_port_tc_group(struct mlx5_core_dev *mdev, u8 *tc_group)
 }
 EXPORT_SYMBOL_GPL(mlx5_set_port_tc_group);
 
+int mlx5_query_port_tc_group(struct mlx5_core_dev *mdev,
+                            u8 tc, u8 *tc_group)
+{
+       u32 out[MLX5_ST_SZ_DW(qetc_reg)];
+       void *ets_tcn_conf;
+       int err;
+
+       err = mlx5_query_port_qetcr_reg(mdev, out, sizeof(out));
+       if (err)
+               return err;
+
+       ets_tcn_conf = MLX5_ADDR_OF(qetc_reg, out,
+                                   tc_configuration[tc]);
+
+       *tc_group = MLX5_GET(ets_tcn_config_reg, ets_tcn_conf,
+                            group);
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_port_tc_group);
+
 int mlx5_set_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 *tc_bw)
 {
        u32 in[MLX5_ST_SZ_DW(qetc_reg)] = {0};