net/mlx5: Add LAG flow steering namespace

This namespace is used for LAG demux flowtable.

The idea is to position the LAG demux ft between
bypass and kernel flowtables, allowing raw-eth
traffic from both ports to be received by the PF0
IB device.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index eabd734..ac414b7 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -96,6 +96,10 @@
 #define OFFLOADS_NUM_PRIOS 1
 #define OFFLOADS_MIN_LEVEL (ANCHOR_MIN_LEVEL + 1)
 
+#define LAG_PRIO_NUM_LEVELS 1
+#define LAG_NUM_PRIOS 1
+#define LAG_MIN_LEVEL (OFFLOADS_MIN_LEVEL + 1)
+
 struct node_caps {
        size_t  arr_sz;
        long    *caps;
@@ -111,12 +115,16 @@ static struct init_tree_node {
        int num_levels;
 } root_fs = {
        .type = FS_TYPE_NAMESPACE,
-       .ar_size = 6,
+       .ar_size = 7,
        .children = (struct init_tree_node[]) {
                ADD_PRIO(0, BY_PASS_MIN_LEVEL, 0,
                         FS_CHAINING_CAPS,
                         ADD_NS(ADD_MULTIPLE_PRIO(MLX5_BY_PASS_NUM_PRIOS,
                                                  BY_PASS_PRIO_NUM_LEVELS))),
+               ADD_PRIO(0, LAG_MIN_LEVEL, 0,
+                        FS_CHAINING_CAPS,
+                        ADD_NS(ADD_MULTIPLE_PRIO(LAG_NUM_PRIOS,
+                                                 LAG_PRIO_NUM_LEVELS))),
                ADD_PRIO(0, OFFLOADS_MIN_LEVEL, 0, {},
                         ADD_NS(ADD_MULTIPLE_PRIO(OFFLOADS_NUM_PRIOS, OFFLOADS_MAX_FT))),
                ADD_PRIO(0, ETHTOOL_MIN_LEVEL, 0,
@@ -1396,6 +1404,7 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 
        switch (type) {
        case MLX5_FLOW_NAMESPACE_BYPASS:
+       case MLX5_FLOW_NAMESPACE_LAG:
        case MLX5_FLOW_NAMESPACE_OFFLOADS:
        case MLX5_FLOW_NAMESPACE_ETHTOOL:
        case MLX5_FLOW_NAMESPACE_KERNEL:

diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h
index 7edfe0b..8803212 100644 (file)
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -54,6 +54,7 @@ static inline void build_leftovers_ft_param(int *priority,
 
 enum mlx5_flow_namespace_type {
        MLX5_FLOW_NAMESPACE_BYPASS,
+       MLX5_FLOW_NAMESPACE_LAG,
        MLX5_FLOW_NAMESPACE_OFFLOADS,
        MLX5_FLOW_NAMESPACE_ETHTOOL,
        MLX5_FLOW_NAMESPACE_KERNEL,