net/mlx5_core: Enable flow steering support for the IB driver

When the driver is loaded, we create flow steering namespace
for kernel bypass with nine priorities and another namespace
for leftovers(in order to catch packets that weren't matched).
Verbs applications will use these priorities.
we found nine as a number that balances the requirements from the
user and retains performance.

The bypass namespace is used by verbs applications that want to bypass
the kernel networking stack. The leftovers namespace is used by verbs
applications and the sniffer in order to catch packets that weren't
handled by any preceding rules.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index df2f79e..7be845e 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1258,4 +1258,6 @@
 	return MLX5_MIN_PKEY_TABLE_SIZE << pkey_sz;
 }
 
+#define MLX5_BY_PASS_NUM_PRIOS 9
+
 #endif /* MLX5_DEVICE_H */
diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 06ac6e8..a943412 100644
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -39,7 +39,9 @@
 #define MLX5_FS_DEFAULT_FLOW_TAG 0x0
 
 enum mlx5_flow_namespace_type {
+	MLX5_FLOW_NAMESPACE_BYPASS,
 	MLX5_FLOW_NAMESPACE_KERNEL,
+	MLX5_FLOW_NAMESPACE_LEFTOVERS,
 	MLX5_FLOW_NAMESPACE_FDB,
 };