[PATCH v2 4/8] net/mlx5: store original actions in template

[Dariusz Sosnowski <dsosnowski@nvidia.com>]

When actions template is created in mlx5 PMD, some actions will be
replaced with another or some actions will be added to implement
required template semantics on NVIDIA NICs. For example:

- RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID actions is replaced with
  modify field action.
- Modify field action is added for preserving metadata
  between FDB and NIC domains.
- Modify field action is added when quota action is used to amend
  ASO syndrome.

Types of actions and their order in flow rules based on some
actions template must match the original, not modified one.

This patch adds preserving of the original actions for actions template
to allow for easier validation of ordering and types on fast path.

Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  1 +
 drivers/net/mlx5/mlx5_flow_hw.c | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 5c2cc2b7c1..8e99e76e5d 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -1532,6 +1532,7 @@ struct rte_flow_actions_template {
 	/* Template attributes. */
 	struct rte_flow_actions_template_attr attr;
 	struct rte_flow_action *actions; /* Cached flow actions. */
+	struct rte_flow_action *orig_actions; /* Original flow actions. */
 	struct rte_flow_action *masks; /* Cached action masks.*/
 	struct mlx5dr_action_template *tmpl; /* mlx5dr action template. */
 	uint64_t action_flags; /* Bit-map of all valid action in template. */
diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index 0ddae54ed2..ddc9cf24d6 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -7745,6 +7745,7 @@ __flow_hw_actions_template_create(struct rte_eth_dev *dev,
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 	int len, act_len, mask_len;
+	int orig_act_len;
 	unsigned int act_num;
 	unsigned int i;
 	struct rte_flow_actions_template *at = NULL;
@@ -7862,6 +7863,10 @@ __flow_hw_actions_template_create(struct rte_eth_dev *dev,
 	len += RTE_ALIGN(mask_len, 16);
 	len += RTE_ALIGN(act_num * sizeof(*at->dr_off), 16);
 	len += RTE_ALIGN(act_num * sizeof(*at->src_off), 16);
+	orig_act_len = rte_flow_conv(RTE_FLOW_CONV_OP_ACTIONS, NULL, 0, actions, error);
+	if (orig_act_len <= 0)
+		return NULL;
+	len += RTE_ALIGN(orig_act_len, 16);
 	at = mlx5_malloc(MLX5_MEM_ZERO, len + sizeof(*at),
 			 RTE_CACHE_LINE_SIZE, rte_socket_id());
 	if (!at) {
@@ -7889,6 +7894,12 @@ __flow_hw_actions_template_create(struct rte_eth_dev *dev,
 	at->src_off = RTE_PTR_ADD(at->dr_off,
 				  RTE_ALIGN(act_num * sizeof(*at->dr_off), 16));
 	memcpy(at->src_off, src_off, act_num * sizeof(at->src_off[0]));
+	at->orig_actions = RTE_PTR_ADD(at->src_off,
+				       RTE_ALIGN(act_num * sizeof(*at->src_off), 16));
+	orig_act_len = rte_flow_conv(RTE_FLOW_CONV_OP_ACTIONS, at->orig_actions, orig_act_len,
+				     actions, error);
+	if (orig_act_len <= 0)
+		goto error;
 	at->actions_num = act_num;
 	for (i = 0; i < at->actions_num; ++i)
 		at->dr_off[i] = UINT16_MAX;
-- 
2.39.2