net/mlx5e: Support accept action
Support TC generic 'accept' action in mlx5 by introducing
MLX5_ESW_ATTR_FLAG_ACCEPT attribute flag. Flag has similar semantics to
existing MLX5_ESW_ATTR_FLAG_SLOW_PATH flag, however, dedicated flag is
required because existing 'slow path' flag can be flipped by tunneling
subsystem when neighbor changes state.
Introduce new helper function mlx5_esw_attr_flags_skip() to check whether
attribute flags for 'slow path' or 'accept' action are set and use it in
eswitch code instead of direct bit manipulation.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index dc21d28..d92ee2f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3810,6 +3810,11 @@
flow_action_for_each(i, act, flow_action) {
switch (act->id) {
+ case FLOW_ACTION_ACCEPT:
+ action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
+ MLX5_FLOW_CONTEXT_ACTION_COUNT;
+ attr->flags |= MLX5_ESW_ATTR_FLAG_ACCEPT;
+ break;
case FLOW_ACTION_DROP:
action |= MLX5_FLOW_CONTEXT_ACTION_DROP |
MLX5_FLOW_CONTEXT_ACTION_COUNT;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 2c74441..7461aaf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -447,8 +447,16 @@
MLX5_ESW_ATTR_FLAG_NO_IN_PORT = BIT(2),
MLX5_ESW_ATTR_FLAG_SRC_REWRITE = BIT(3),
MLX5_ESW_ATTR_FLAG_SAMPLE = BIT(4),
+ MLX5_ESW_ATTR_FLAG_ACCEPT = BIT(5),
};
+/* Returns true if any of the flags that require skipping further TC/NF processing are set. */
+static inline bool
+mlx5_esw_attr_flags_skip(u32 attr_flags)
+{
+ return attr_flags & (MLX5_ESW_ATTR_FLAG_SLOW_PATH | MLX5_ESW_ATTR_FLAG_ACCEPT);
+}
+
struct mlx5_esw_flow_attr {
struct mlx5_eswitch_rep *in_rep;
struct mlx5_core_dev *in_mdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 4e1628f..ca7e31a1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -440,7 +440,7 @@
} else if (attr->dest_ft) {
esw_setup_ft_dest(dest, flow_act, esw, attr, spec, *i);
(*i)++;
- } else if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH) {
+ } else if (mlx5_esw_attr_flags_skip(attr->flags)) {
esw_setup_slow_path_dest(dest, flow_act, chains, *i);
(*i)++;
} else if (attr->dest_chain) {
@@ -467,7 +467,7 @@
if (attr->dest_ft) {
esw_cleanup_decap_indir(esw, attr);
- } else if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH)) {
+ } else if (!mlx5_esw_attr_flags_skip(attr->flags)) {
if (attr->dest_chain)
esw_cleanup_chain_dest(chains, attr->dest_chain, 1, 0);
else if (esw_is_indir_table(esw, attr))
@@ -678,7 +678,7 @@
mlx5_del_flow_rules(rule);
- if (!(attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH)) {
+ if (!mlx5_esw_attr_flags_skip(attr->flags)) {
/* unref the term table */
for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) {
if (esw_attr->dests[i].termtbl)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
index b459549..879d78e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
@@ -219,7 +219,7 @@
if (!MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, termination_table) ||
!MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ignore_flow_level) ||
- attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH ||
+ mlx5_esw_attr_flags_skip(attr->flags) ||
!mlx5_eswitch_offload_is_uplink_port(esw, spec))
return false;
