net/mlx5: Properly deal with flow counters when deleting rules

When deleting a flow counter, the modify mask should be the action and
the flow counter. Otherwise the flow counter is not deleted and we'll
get a firmware warning when deleting the remaining destinations on the
same FTE.

It only happens in the presence of flow counter and multiple vport
destinations. If there is only one vport destination, there is no
need to update the FTE when deleting the only vport destination,
we just delete the FTE.

Fixes: ae05831424ed ("net/mlx5: Add option to add fwd rule with counter")
Signed-off-by: Chris Mi <chrism@mellanox.com>
Signed-off-by: Jianbo Liu <jianbol@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 2595c67ea39e228b8ecfdfc711891e9a183bb48e..c39c1692e6744a6fe22c2b0742c5341d58c944e1 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -482,7 +482,8 @@ static void del_sw_hw_rule(struct fs_node *node)
 
        if (rule->dest_attr.type == MLX5_FLOW_DESTINATION_TYPE_COUNTER  &&
            --fte->dests_size) {
-               modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION);
+               modify_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION) |
+                             BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS);
                fte->action.action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT;
                update_fte = true;
                goto out;