[PATCH v4 02/14] net/mlx5: add HW steering low-level abstract code

[Suanming Mou <suanmingm@nvidia.com>]

The HW steering low-level implementation will be added later in another
patch series. To avoid the linkage issues the abstract stub replacement
is provided currently.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/meson.build |   1 +
 drivers/net/mlx5/mlx5_dr.c   | 383 +++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_dr.h   | 456 +++++++++++++++++++++++++++++++++++
 3 files changed, 840 insertions(+)
 create mode 100644 drivers/net/mlx5/mlx5_dr.c
 create mode 100644 drivers/net/mlx5/mlx5_dr.h

diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index 39a2b8c523..393b2c97ac 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -14,6 +14,7 @@ sources = files(
         'mlx5.c',
         'mlx5_ethdev.c',
         'mlx5_flow.c',
+	'mlx5_dr.c',
         'mlx5_flow_meter.c',
         'mlx5_flow_dv.c',
         'mlx5_flow_hw.c',
diff --git a/drivers/net/mlx5/mlx5_dr.c b/drivers/net/mlx5/mlx5_dr.c
new file mode 100644
index 0000000000..7218708986
--- /dev/null
+++ b/drivers/net/mlx5/mlx5_dr.c
@@ -0,0 +1,383 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved.
+ */
+#include <rte_flow.h>
+
+#include "mlx5_defs.h"
+#if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
+#include "mlx5_dr.h"
+
+/*
+ * The following null stubs are prepared in order not to break the linkage
+ * before the HW steering low-level implementation is added.
+ */
+
+/* Open a context used for direct rule insertion using hardware steering.
+ * Each context can contain multiple tables of different types.
+ *
+ * @param[in] ibv_ctx
+ *	The ibv context to used for HWS.
+ * @param[in] attr
+ *	Attributes used for context open.
+ * @return pointer to mlx5dr_context on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_context *
+mlx5dr_context_open(void *ibv_ctx,
+		    struct mlx5dr_context_attr *attr)
+{
+	(void)ibv_ctx;
+	(void)attr;
+	return NULL;
+}
+
+/* Close a context used for direct hardware steering.
+ *
+ * @param[in] ctx
+ *	mlx5dr context to close.
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_context_close(struct mlx5dr_context *ctx)
+{
+	(void)ctx;
+	return 0;
+}
+
+/* Create a new direct rule table. Each table can contain multiple matchers.
+ *
+ * @param[in] ctx
+ *	The context in which the new table will be opened.
+ * @param[in] attr
+ *	Attributes used for table creation.
+ * @return pointer to mlx5dr_table on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_table *
+mlx5dr_table_create(struct mlx5dr_context *ctx,
+		    struct mlx5dr_table_attr *attr)
+{
+	(void)ctx;
+	(void)attr;
+	return NULL;
+}
+
+/* Destroy direct rule table.
+ *
+ * @param[in] tbl
+ *	mlx5dr table to destroy.
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int mlx5dr_table_destroy(struct mlx5dr_table *tbl)
+{
+	(void)tbl;
+	return 0;
+}
+
+/* Create new match template based on items mask, the match template
+ * will be used for matcher creation.
+ *
+ * @param[in] items
+ *	Describe the mask for template creation
+ * @param[in] flags
+ *	Template creation flags
+ * @return pointer to mlx5dr_match_template on success NULL otherwise
+ */
+__rte_weak struct mlx5dr_match_template *
+mlx5dr_match_template_create(const struct rte_flow_item items[],
+			     enum mlx5dr_match_template_flags flags)
+{
+	(void)items;
+	(void)flags;
+	return NULL;
+}
+
+/* Destroy match template.
+ *
+ * @param[in] mt
+ *	Match template to destroy.
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_match_template_destroy(struct mlx5dr_match_template *mt)
+{
+	(void)mt;
+	return 0;
+}
+
+/* Create a new direct rule matcher. Each matcher can contain multiple rules.
+ * Matchers on the table will be processed by priority. Matching fields and
+ * mask are described by the match template. In some cases multiple match
+ * templates can be used on the same matcher.
+ *
+ * @param[in] table
+ *	The table in which the new matcher will be opened.
+ * @param[in] mt
+ *	Array of match templates to be used on matcher.
+ * @param[in] num_of_mt
+ *	Number of match templates in mt array.
+ * @param[in] attr
+ *	Attributes used for matcher creation.
+ * @return pointer to mlx5dr_matcher on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_matcher *
+mlx5dr_matcher_create(struct mlx5dr_table *table __rte_unused,
+		      struct mlx5dr_match_template *mt[] __rte_unused,
+		      uint8_t num_of_mt __rte_unused,
+		      struct mlx5dr_matcher_attr *attr __rte_unused)
+{
+	return NULL;
+}
+
+/* Destroy direct rule matcher.
+ *
+ * @param[in] matcher
+ *	Matcher to destroy.
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher __rte_unused)
+{
+	return 0;
+}
+
+/* Enqueue create rule operation.
+ *
+ * @param[in] matcher
+ *	The matcher in which the new rule will be created.
+ * @param[in] mt_idx
+ *	Match template index to create the rule with.
+ * @param[in] items
+ *	The items used for the value matching.
+ * @param[in] rule_actions
+ *	Rule action to be executed on match.
+ * @param[in] num_of_actions
+ *	Number of rule actions.
+ * @param[in] attr
+ *	Rule creation attributes.
+ * @param[in, out] rule_handle
+ *	A valid rule handle. The handle doesn't require any initialization.
+ * @return zero on successful enqueue non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_rule_create(struct mlx5dr_matcher *matcher __rte_unused,
+		   uint8_t mt_idx __rte_unused,
+		   const struct rte_flow_item items[] __rte_unused,
+		   struct mlx5dr_rule_action rule_actions[] __rte_unused,
+		   uint8_t num_of_actions __rte_unused,
+		   struct mlx5dr_rule_attr *attr __rte_unused,
+		   struct mlx5dr_rule *rule_handle __rte_unused)
+{
+	return 0;
+}
+
+/* Enqueue destroy rule operation.
+ *
+ * @param[in] rule
+ *	The rule destruction to enqueue.
+ * @param[in] attr
+ *	Rule destruction attributes.
+ * @return zero on successful enqueue non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_rule_destroy(struct mlx5dr_rule *rule __rte_unused,
+		    struct mlx5dr_rule_attr *attr __rte_unused)
+{
+	return 0;
+}
+
+/* Create direct rule drop action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_dest_drop(struct mlx5dr_context *ctx __rte_unused,
+			       uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/* Create direct rule default miss action.
+ * Defaults are RX: Drop TX: Wire.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_default_miss(struct mlx5dr_context *ctx __rte_unused,
+				  uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/* Create direct rule goto table action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] tbl
+ *	Destination table.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_dest_table(struct mlx5dr_context *ctx __rte_unused,
+				struct mlx5dr_table *tbl __rte_unused,
+				uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/*  Create direct rule goto TIR action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] obj
+ *	Direct rule TIR devx object.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_dest_tir(struct mlx5dr_context *ctx __rte_unused,
+			      struct mlx5dr_devx_obj *obj __rte_unused,
+			      uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/* Create direct rule TAG action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_tag(struct mlx5dr_context *ctx __rte_unused,
+			 uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/* Create direct rule counter action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] obj
+ *	Direct rule counter devx object.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_counter(struct mlx5dr_context *ctx,
+			     struct mlx5dr_devx_obj *obj,
+			     uint32_t flags);
+
+/* Create direct rule reformat action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] reformat_type
+ *	Type of reformat.
+ * @param[in] data_sz
+ *	Size in bytes of data.
+ * @param[in] inline_data
+ *	Header data array in case of inline action.
+ * @param[in] log_bulk_size
+ *	Number of unique values used with this pattern.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_reformat(struct mlx5dr_context *ctx __rte_unused,
+	      enum mlx5dr_action_reformat_type reformat_type __rte_unused,
+			      size_t data_sz __rte_unused,
+			      void *inline_data __rte_unused,
+			      uint32_t log_bulk_size __rte_unused,
+			      uint32_t flags __rte_unused)
+{
+	return NULL;
+}
+
+/* Create direct rule modify header action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] pattern_sz
+ *	Byte size of the pattern array.
+ * @param[in] pattern
+ *	PRM format modify pattern action array.
+ * @param[in] log_bulk_size
+ *	Number of unique values used with this pattern.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+__rte_weak struct mlx5dr_action *
+mlx5dr_action_create_modify_header(struct mlx5dr_context *ctx,
+				   size_t pattern_sz,
+				   rte_be64_t pattern[],
+				   uint32_t log_bulk_size,
+				   uint32_t flags);
+
+/* Destroy direct rule action.
+ *
+ * @param[in] action
+ *	The action to destroy.
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_action_destroy(struct mlx5dr_action *action __rte_unused)
+{
+	return 0;
+}
+
+/* Poll queue for rule creation and deletions completions.
+ *
+ * @param[in] ctx
+ *	The context to which the queue belong to.
+ * @param[in] queue_id
+ *	The id of the queue to poll.
+ * @param[in, out] res
+ *	Completion array.
+ * @param[in] res_nb
+ *	Maximum number of results to return.
+ * @return negative number on failure, the number of completions otherwise.
+ */
+__rte_weak int
+mlx5dr_send_queue_poll(struct mlx5dr_context *ctx __rte_unused,
+		       uint16_t queue_id __rte_unused,
+		       struct rte_flow_op_result res[] __rte_unused,
+		       uint32_t res_nb __rte_unused)
+{
+	return 0;
+}
+
+/* Perform an action on the queue
+ *
+ * @param[in] ctx
+ *	The context to which the queue belong to.
+ * @param[in] queue_id
+ *	The id of the queue to perform the action on.
+ * @param[in] actions
+ *	Actions to perform on the queue. (enum mlx5dr_send_queue_actions)
+ * @return zero on success non zero otherwise.
+ */
+__rte_weak int
+mlx5dr_send_queue_action(struct mlx5dr_context *ctx __rte_unused,
+			 uint16_t queue_id __rte_unused,
+			 uint32_t actions __rte_unused)
+{
+	return 0;
+}
+
+#endif
diff --git a/drivers/net/mlx5/mlx5_dr.h b/drivers/net/mlx5/mlx5_dr.h
new file mode 100644
index 0000000000..d0b2c15652
--- /dev/null
+++ b/drivers/net/mlx5/mlx5_dr.h
@@ -0,0 +1,456 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved.
+ */
+
+#ifndef MLX5_DR_H_
+#define MLX5_DR_H_
+
+#include <rte_flow.h>
+
+struct mlx5dr_context;
+struct mlx5dr_table;
+struct mlx5dr_matcher;
+struct mlx5dr_rule;
+
+enum mlx5dr_table_type {
+	MLX5DR_TABLE_TYPE_NIC_RX,
+	MLX5DR_TABLE_TYPE_NIC_TX,
+	MLX5DR_TABLE_TYPE_FDB,
+	MLX5DR_TABLE_TYPE_MAX,
+};
+
+enum mlx5dr_matcher_resource_mode {
+	/* Allocate resources based on number of rules with minimal failure probability */
+	MLX5DR_MATCHER_RESOURCE_MODE_RULE,
+	/* Allocate fixed size hash table based on given column and rows */
+	MLX5DR_MATCHER_RESOURCE_MODE_HTABLE,
+};
+
+enum mlx5dr_action_flags {
+	MLX5DR_ACTION_FLAG_ROOT_RX = 1 << 0,
+	MLX5DR_ACTION_FLAG_ROOT_TX = 1 << 1,
+	MLX5DR_ACTION_FLAG_ROOT_FDB = 1 << 2,
+	MLX5DR_ACTION_FLAG_HWS_RX = 1 << 3,
+	MLX5DR_ACTION_FLAG_HWS_TX = 1 << 4,
+	MLX5DR_ACTION_FLAG_HWS_FDB = 1 << 5,
+	MLX5DR_ACTION_FLAG_INLINE = 1 << 6,
+};
+
+enum mlx5dr_action_reformat_type {
+	MLX5DR_ACTION_REFORMAT_TYPE_TNL_L2_TO_L2,
+	MLX5DR_ACTION_REFORMAT_TYPE_L2_TO_TNL_L2,
+	MLX5DR_ACTION_REFORMAT_TYPE_TNL_L3_TO_L2,
+	MLX5DR_ACTION_REFORMAT_TYPE_L2_TO_TNL_L3,
+};
+
+enum mlx5dr_match_template_flags {
+	/* Allow relaxed matching by skipping derived dependent match fields. */
+	MLX5DR_MATCH_TEMPLATE_FLAG_RELAXED_MATCH = 1,
+};
+
+enum mlx5dr_send_queue_actions {
+	/* Start executing all pending queued rules and write to HW */
+	MLX5DR_SEND_QUEUE_ACTION_DRAIN = 1 << 0,
+};
+
+struct mlx5dr_context_attr {
+	uint16_t queues;
+	uint16_t queue_size;
+	size_t initial_log_ste_memory;
+	/* Optional PD used for allocating res ources */
+	struct ibv_pd *pd;
+};
+
+struct mlx5dr_table_attr {
+	enum mlx5dr_table_type type;
+	uint32_t level;
+};
+
+struct mlx5dr_matcher_attr {
+	uint32_t priority;
+	enum mlx5dr_matcher_resource_mode mode;
+	union {
+		struct {
+			uint8_t sz_row_log;
+			uint8_t sz_col_log;
+		} table;
+
+		struct {
+			uint8_t num_log;
+		} rule;
+	};
+};
+
+struct mlx5dr_rule_attr {
+	uint16_t queue_id;
+	void *user_data;
+	uint32_t burst:1;
+};
+
+struct mlx5dr_devx_obj {
+	struct mlx5dv_devx_obj *obj;
+	uint32_t id;
+};
+
+struct mlx5dr_rule_action {
+	struct mlx5dr_action *action;
+	union {
+		struct {
+			uint32_t value;
+		} tag;
+
+		struct {
+			uint32_t offset;
+		} counter;
+
+		struct {
+			uint32_t offset;
+			uint8_t *data;
+		} modify_header;
+
+		struct {
+			uint32_t offset;
+			uint8_t *data;
+		} reformat;
+
+		struct {
+			rte_be32_t vlan_hdr;
+		} push_vlan;
+	};
+};
+
+enum {
+	MLX5DR_MATCH_TAG_SZ = 32,
+	MLX5DR_JAMBO_TAG_SZ = 44,
+};
+
+enum mlx5dr_rule_status {
+	MLX5DR_RULE_STATUS_UNKNOWN,
+	MLX5DR_RULE_STATUS_CREATING,
+	MLX5DR_RULE_STATUS_CREATED,
+	MLX5DR_RULE_STATUS_DELETING,
+	MLX5DR_RULE_STATUS_DELETED,
+	MLX5DR_RULE_STATUS_FAILED,
+};
+
+struct mlx5dr_rule {
+	struct mlx5dr_matcher *matcher;
+	union {
+		uint8_t match_tag[MLX5DR_MATCH_TAG_SZ];
+		struct ibv_flow *flow;
+	};
+	enum mlx5dr_rule_status status;
+	uint32_t rtc_used; /* The RTC into which the STE was inserted */
+};
+
+/* Open a context used for direct rule insertion using hardware steering.
+ * Each context can contain multiple tables of different types.
+ *
+ * @param[in] ibv_ctx
+ *	The ibv context to used for HWS.
+ * @param[in] attr
+ *	Attributes used for context open.
+ * @return pointer to mlx5dr_context on success NULL otherwise.
+ */
+struct mlx5dr_context *
+mlx5dr_context_open(void *ibv_ctx,
+		    struct mlx5dr_context_attr *attr);
+
+/* Close a context used for direct hardware steering.
+ *
+ * @param[in] ctx
+ *	mlx5dr context to close.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_context_close(struct mlx5dr_context *ctx);
+
+/* Create a new direct rule table. Each table can contain multiple matchers.
+ *
+ * @param[in] ctx
+ *	The context in which the new table will be opened.
+ * @param[in] attr
+ *	Attributes used for table creation.
+ * @return pointer to mlx5dr_table on success NULL otherwise.
+ */
+struct mlx5dr_table *
+mlx5dr_table_create(struct mlx5dr_context *ctx,
+		    struct mlx5dr_table_attr *attr);
+
+/* Destroy direct rule table.
+ *
+ * @param[in] tbl
+ *	mlx5dr table to destroy.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_table_destroy(struct mlx5dr_table *tbl);
+
+/* Create new match template based on items mask, the match template
+ * will be used for matcher creation.
+ *
+ * @param[in] items
+ *	Describe the mask for template creation
+ * @param[in] flags
+ *	Template creation flags
+ * @return pointer to mlx5dr_match_template on success NULL otherwise
+ */
+struct mlx5dr_match_template *
+mlx5dr_match_template_create(const struct rte_flow_item items[],
+			     enum mlx5dr_match_template_flags flags);
+
+/* Destroy match template.
+ *
+ * @param[in] mt
+ *	Match template to destroy.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_match_template_destroy(struct mlx5dr_match_template *mt);
+
+/* Create a new direct rule matcher. Each matcher can contain multiple rules.
+ * Matchers on the table will be processed by priority. Matching fields and
+ * mask are described by the match template. In some cases multiple match
+ * templates can be used on the same matcher.
+ *
+ * @param[in] table
+ *	The table in which the new matcher will be opened.
+ * @param[in] mt
+ *	Array of match templates to be used on matcher.
+ * @param[in] num_of_mt
+ *	Number of match templates in mt array.
+ * @param[in] attr
+ *	Attributes used for matcher creation.
+ * @return pointer to mlx5dr_matcher on success NULL otherwise.
+ */
+struct mlx5dr_matcher *
+mlx5dr_matcher_create(struct mlx5dr_table *table,
+		      struct mlx5dr_match_template *mt[],
+		      uint8_t num_of_mt,
+		      struct mlx5dr_matcher_attr *attr);
+
+/* Destroy direct rule matcher.
+ *
+ * @param[in] matcher
+ *	Matcher to destroy.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher);
+
+/* Get the size of the rule handle (mlx5dr_rule) to be used on rule creation.
+ *
+ * @return size in bytes of rule handle struct.
+ */
+size_t mlx5dr_rule_get_handle_size(void);
+
+/* Enqueue create rule operation.
+ *
+ * @param[in] matcher
+ *	The matcher in which the new rule will be created.
+ * @param[in] mt_idx
+ *	Match template index to create the rule with.
+ * @param[in] items
+ *	The items used for the value matching.
+ * @param[in] rule_actions
+ *	Rule action to be executed on match.
+ * @param[in] num_of_actions
+ *	Number of rule actions.
+ * @param[in] attr
+ *	Rule creation attributes.
+ * @param[in, out] rule_handle
+ *	A valid rule handle. The handle doesn't require any initialization.
+ * @return zero on successful enqueue non zero otherwise.
+ */
+int mlx5dr_rule_create(struct mlx5dr_matcher *matcher,
+		       uint8_t mt_idx,
+		       const struct rte_flow_item items[],
+		       struct mlx5dr_rule_action rule_actions[],
+		       uint8_t num_of_actions,
+		       struct mlx5dr_rule_attr *attr,
+		       struct mlx5dr_rule *rule_handle);
+
+/* Enqueue destroy rule operation.
+ *
+ * @param[in] rule
+ *	The rule destruction to enqueue.
+ * @param[in] attr
+ *	Rule destruction attributes.
+ * @return zero on successful enqueue non zero otherwise.
+ */
+int mlx5dr_rule_destroy(struct mlx5dr_rule *rule,
+			struct mlx5dr_rule_attr *attr);
+
+/* Create direct rule drop action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_dest_drop(struct mlx5dr_context *ctx,
+			       uint32_t flags);
+
+/* Create direct rule default miss action.
+ * Defaults are RX: Drop TX: Wire.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_default_miss(struct mlx5dr_context *ctx,
+				  uint32_t flags);
+
+/* Create direct rule goto table action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] tbl
+ *	Destination table.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_dest_table(struct mlx5dr_context *ctx,
+				struct mlx5dr_table *tbl,
+				uint32_t flags);
+
+/*  Create direct rule goto TIR action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] obj
+ *	Direct rule TIR devx object.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_dest_tir(struct mlx5dr_context *ctx,
+			      struct mlx5dr_devx_obj *obj,
+			      uint32_t flags);
+
+/* Create direct rule TAG action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_tag(struct mlx5dr_context *ctx,
+			 uint32_t flags);
+
+/* Create direct rule counter action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] obj
+ *	Direct rule counter devx object.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_counter(struct mlx5dr_context *ctx,
+			     struct mlx5dr_devx_obj *obj,
+			     uint32_t flags);
+
+/* Create direct rule reformat action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] reformat_type
+ *	Type of reformat.
+ * @param[in] data_sz
+ *	Size in bytes of data.
+ * @param[in] inline_data
+ *	Header data array in case of inline action.
+ * @param[in] log_bulk_size
+ *	Number of unique values used with this pattern.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_reformat(struct mlx5dr_context *ctx,
+			      enum mlx5dr_action_reformat_type reformat_type,
+			      size_t data_sz,
+			      void *inline_data,
+			      uint32_t log_bulk_size,
+			      uint32_t flags);
+
+/* Create direct rule modify header action.
+ *
+ * @param[in] ctx
+ *	The context in which the new action will be created.
+ * @param[in] pattern_sz
+ *	Byte size of the pattern array.
+ * @param[in] pattern
+ *	PRM format modify pattern action array.
+ * @param[in] log_bulk_size
+ *	Number of unique values used with this pattern.
+ * @param[in] flags
+ *	Action creation flags. (enum mlx5dr_action_flags)
+ * @return pointer to mlx5dr_action on success NULL otherwise.
+ */
+struct mlx5dr_action *
+mlx5dr_action_create_modify_header(struct mlx5dr_context *ctx,
+				   size_t pattern_sz,
+				   rte_be64_t pattern[],
+				   uint32_t log_bulk_size,
+				   uint32_t flags);
+
+/* Destroy direct rule action.
+ *
+ * @param[in] action
+ *	The action to destroy.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_action_destroy(struct mlx5dr_action *action);
+
+/* Poll queue for rule creation and deletions completions.
+ *
+ * @param[in] ctx
+ *	The context to which the queue belong to.
+ * @param[in] queue_id
+ *	The id of the queue to poll.
+ * @param[in, out] res
+ *	Completion array.
+ * @param[in] res_nb
+ *	Maximum number of results to return.
+ * @return negative number on failure, the number of completions otherwise.
+ */
+int mlx5dr_send_queue_poll(struct mlx5dr_context *ctx,
+			   uint16_t queue_id,
+			   struct rte_flow_op_result res[],
+			   uint32_t res_nb);
+
+/* Perform an action on the queue
+ *
+ * @param[in] ctx
+ *	The context to which the queue belong to.
+ * @param[in] queue_id
+ *	The id of the queue to perform the action on.
+ * @param[in] actions
+ *	Actions to perform on the queue. (enum mlx5dr_send_queue_actions)
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_send_queue_action(struct mlx5dr_context *ctx,
+			     uint16_t queue_id,
+			     uint32_t actions);
+
+/* Dump HWS info
+ *
+ * @param[in] ctx
+ *	The context which to dump the info from.
+ * @param[in] f
+ *	The file to write the dump to.
+ * @return zero on success non zero otherwise.
+ */
+int mlx5dr_debug_dump(struct mlx5dr_context *ctx, FILE *f);
+
+#endif
-- 
2.25.1