1 files changed, 24 insertions, 0 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 6a8f002b8ed3..7f5c9ee42f96 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -70,6 +70,29 @@ enum {
         MLX4_MFUNC_EQE_MASK     = (MLX4_MFUNC_MAX_EQES - 1)
 };
 
+/* Driver supports 2 diffrent device methods to manage traffic steering:
+ *      - B0 steering mode - Common low level API for ib and (if supported) eth.
+ *      - A0 steering mode - Limited low level API for eth. In case of IB,
+ *                           B0 mode is in use.
+ */
+enum {
+        MLX4_STEERING_MODE_A0,
+        MLX4_STEERING_MODE_B0
+};
+
+static inline const char *mlx4_steering_mode_str(int steering_mode)
+{
+        switch (steering_mode) {
+        case MLX4_STEERING_MODE_A0:
+                return "A0 steering";
+
+        case MLX4_STEERING_MODE_B0:
+                return "B0 steering";
+        default:
+                return "Unrecognize steering mode";
+        }
+}
+
 enum {
         MLX4_DEV_CAP_FLAG_RC            = 1LL <<  0,
         MLX4_DEV_CAP_FLAG_UC            = 1LL <<  1,
@@ -295,6 +318,7 @@ struct mlx4_caps {
         int                     num_amgms;
         int                     reserved_mcgs;
         int                     num_qp_per_mgm;
+        int                     steering_mode;
         int                     num_pds;
         int                     reserved_pds;
         int                     max_xrcds;