[dpdk-dev] [PATCH v5 31/41] pipeline: add SWX table update high level API

[Cristian Dumitrescu <cristian.dumitrescu@intel.com>]

High-level transaction-oriented API for SWX pipeline table updates. It
supports multi-table atomic updates, i.e. multiple tables can be
updated in a single step with only the before and after table set
visible to the packets. Uses the lower-level table update mechanisms.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
---
 lib/librte_pipeline/meson.build              |    3 +-
 lib/librte_pipeline/rte_pipeline_version.map |   15 +-
 lib/librte_pipeline/rte_swx_ctl.c            | 1552 ++++++++++++++++++
 lib/librte_pipeline/rte_swx_ctl.h            |  170 ++
 4 files changed, 1736 insertions(+), 4 deletions(-)
 create mode 100644 lib/librte_pipeline/rte_swx_ctl.c

diff --git a/lib/librte_pipeline/meson.build b/lib/librte_pipeline/meson.build
index d5f4d16e5..be1d9c3a4 100644
--- a/lib/librte_pipeline/meson.build
+++ b/lib/librte_pipeline/meson.build
@@ -4,7 +4,8 @@
 sources = files('rte_pipeline.c',
 	'rte_port_in_action.c',
 	'rte_table_action.c',
-	'rte_swx_pipeline.c',)
+	'rte_swx_pipeline.c',
+	'rte_swx_ctl.c',)
 headers = files('rte_pipeline.h',
 	'rte_port_in_action.h',
 	'rte_table_action.h',
diff --git a/lib/librte_pipeline/rte_pipeline_version.map b/lib/librte_pipeline/rte_pipeline_version.map
index 730e11a0c..ec38f0eef 100644
--- a/lib/librte_pipeline/rte_pipeline_version.map
+++ b/lib/librte_pipeline/rte_pipeline_version.map
@@ -1,4 +1,4 @@
-DPDK_21 {
+DPDK_20.0 {
 	global:
 
 	rte_pipeline_ah_packet_drop;
@@ -75,8 +75,6 @@ EXPERIMENTAL {
 	rte_swx_pipeline_free;
 	rte_swx_pipeline_run;
 	rte_swx_pipeline_flush;
-	rte_swx_pipeline_table_state_get;
-	rte_swx_pipeline_table_state_set;
 	rte_swx_ctl_pipeline_info_get;
 	rte_swx_ctl_pipeline_numa_node_get;
 	rte_swx_ctl_pipeline_port_in_stats_read;
@@ -87,4 +85,15 @@ EXPERIMENTAL {
 	rte_swx_ctl_table_match_field_info_get;
 	rte_swx_ctl_table_action_info_get;
 	rte_swx_ctl_table_ops_get;
+	rte_swx_pipeline_table_state_get;
+	rte_swx_pipeline_table_state_set;
+	rte_swx_ctl_pipeline_create;
+	rte_swx_ctl_pipeline_free;
+	rte_swx_ctl_pipeline_table_entry_add;
+	rte_swx_ctl_pipeline_table_default_entry_add;
+	rte_swx_ctl_pipeline_table_entry_delete;
+	rte_swx_ctl_pipeline_commit;
+	rte_swx_ctl_pipeline_abort;
+	rte_swx_ctl_pipeline_table_entry_read;
+	rte_swx_ctl_pipeline_table_fprintf;
 };
diff --git a/lib/librte_pipeline/rte_swx_ctl.c b/lib/librte_pipeline/rte_swx_ctl.c
new file mode 100644
index 000000000..576fb2bf3
--- /dev/null
+++ b/lib/librte_pipeline/rte_swx_ctl.c
@@ -0,0 +1,1552 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/queue.h>
+#include <unistd.h>
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+
+#include "rte_swx_ctl.h"
+
+#define CHECK(condition, err_code)                                             \
+do {                                                                           \
+	if (!(condition))                                                      \
+		return -(err_code);                                            \
+} while (0)
+
+#define ntoh64(x) rte_be_to_cpu_64(x)
+#define hton64(x) rte_cpu_to_be_64(x)
+
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+#define field_ntoh(val, n_bits) (ntoh64((val) << (64 - n_bits)))
+#define field_hton(val, n_bits) (hton64((val) << (64 - n_bits)))
+#else
+#define field_ntoh(val, n_bits) (val)
+#define field_hton(val, n_bits) (val)
+#endif
+
+struct action {
+	struct rte_swx_ctl_action_info info;
+	struct rte_swx_ctl_action_arg_info *args;
+	uint32_t data_size;
+};
+
+struct table {
+	struct rte_swx_ctl_table_info info;
+	struct rte_swx_ctl_table_match_field_info *mf;
+	struct rte_swx_ctl_table_action_info *actions;
+	struct rte_swx_table_ops ops;
+	struct rte_swx_table_params params;
+
+	struct rte_swx_table_entry_list entries;
+	struct rte_swx_table_entry_list pending_add;
+	struct rte_swx_table_entry_list pending_modify0;
+	struct rte_swx_table_entry_list pending_modify1;
+	struct rte_swx_table_entry_list pending_delete;
+	struct rte_swx_table_entry *pending_default;
+
+	int is_stub;
+	uint32_t n_add;
+	uint32_t n_modify;
+	uint32_t n_delete;
+};
+
+struct rte_swx_ctl_pipeline {
+	struct rte_swx_ctl_pipeline_info info;
+	struct rte_swx_pipeline *p;
+	struct action *actions;
+	struct table *tables;
+	struct rte_swx_table_state *ts;
+	struct rte_swx_table_state *ts_next;
+	int numa_node;
+};
+
+static struct action *
+action_find(struct rte_swx_ctl_pipeline *ctl, const char *action_name)
+{
+	uint32_t i;
+
+	for (i = 0; i < ctl->info.n_actions; i++) {
+		struct action *a = &ctl->actions[i];
+
+		if (!strcmp(action_name, a->info.name))
+			return a;
+	}
+
+	return NULL;
+}
+
+static void
+action_free(struct rte_swx_ctl_pipeline *ctl)
+{
+	uint32_t i;
+
+	if (!ctl->actions)
+		return;
+
+	for (i = 0; i < ctl->info.n_actions; i++) {
+		struct action *action = &ctl->actions[i];
+
+		free(action->args);
+	}
+
+	free(ctl->actions);
+	ctl->actions = NULL;
+}
+
+static struct table *
+table_find(struct rte_swx_ctl_pipeline *ctl, const char *table_name)
+{
+	uint32_t i;
+
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *table = &ctl->tables[i];
+
+		if (!strcmp(table_name, table->info.name))
+			return table;
+	}
+
+	return NULL;
+}
+
+static int
+table_params_get(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+	uint8_t *key_mask = NULL;
+	enum rte_swx_table_match_type match_type = RTE_SWX_TABLE_MATCH_WILDCARD;
+	uint32_t key_size = 0, key_offset = 0, action_data_size = 0, i;
+
+	if (table->info.n_match_fields) {
+		struct rte_swx_ctl_table_match_field_info *first, *last;
+		uint32_t i;
+
+		first = &table->mf[0];
+		last = &table->mf[table->info.n_match_fields - 1];
+
+		/* match_type. */
+		for (i = 0; i < table->info.n_match_fields; i++) {
+			struct rte_swx_ctl_table_match_field_info *f;
+
+			f = &table->mf[i];
+			if (f->match_type != RTE_SWX_TABLE_MATCH_EXACT)
+				break;
+		}
+
+		if (i == table->info.n_match_fields)
+			match_type = RTE_SWX_TABLE_MATCH_EXACT;
+		else if ((i == table->info.n_match_fields - 1) &&
+			 (last->match_type == RTE_SWX_TABLE_MATCH_LPM))
+			match_type = RTE_SWX_TABLE_MATCH_LPM;
+
+		/* key_offset. */
+		key_offset = first->offset / 8;
+
+		/* key_size. */
+		key_size = (last->offset + last->n_bits - first->offset) / 8;
+
+		/* key_mask. */
+		key_mask = calloc(1, key_size);
+		CHECK(key_mask, ENOMEM);
+
+		for (i = 0; i < table->info.n_match_fields; i++) {
+			struct rte_swx_ctl_table_match_field_info *f;
+			uint32_t start;
+			size_t size;
+
+			f = &table->mf[i];
+			start = (f->offset - first->offset) / 8;
+			size = f->n_bits / 8;
+
+			memset(&key_mask[start], 0xFF, size);
+		}
+	}
+
+	/* action_data_size. */
+	for (i = 0; i < table->info.n_actions; i++) {
+		uint32_t action_id = table->actions[i].action_id;
+		struct action *a = &ctl->actions[action_id];
+
+		if (a->data_size > action_data_size)
+			action_data_size = a->data_size;
+	}
+
+	/* Fill in. */
+	table->params.match_type = match_type;
+	table->params.key_size = key_size;
+	table->params.key_offset = key_offset;
+	table->params.key_mask0 = key_mask;
+	table->params.action_data_size = action_data_size;
+	table->params.n_keys_max = table->info.size;
+
+	return 0;
+}
+
+static void
+table_entry_free(struct rte_swx_table_entry *entry)
+{
+	if (!entry)
+		return;
+
+	free(entry->key);
+	free(entry->key_mask);
+	free(entry->action_data);
+	free(entry);
+}
+
+static struct rte_swx_table_entry *
+table_entry_alloc(struct table *table)
+{
+	struct rte_swx_table_entry *entry;
+
+	entry = calloc(1, sizeof(struct rte_swx_table_entry));
+	if (!entry)
+		goto error;
+
+	/* key, key_mask. */
+	if (!table->is_stub) {
+		entry->key = calloc(1, table->params.key_size);
+		if (!entry->key)
+			goto error;
+
+		if (table->params.match_type != RTE_SWX_TABLE_MATCH_EXACT) {
+			entry->key_mask = calloc(1, table->params.key_size);
+			if (!entry->key_mask)
+				goto error;
+		}
+	}
+
+	/* action_data. */
+	if (table->params.action_data_size) {
+		entry->action_data = calloc(1, table->params.action_data_size);
+		if (!entry->action_data)
+			goto error;
+	}
+
+	return entry;
+
+error:
+	table_entry_free(entry);
+	return NULL;
+}
+
+static int
+table_entry_check(struct rte_swx_ctl_pipeline *ctl,
+		  uint32_t table_id,
+		  struct rte_swx_table_entry *entry,
+		  int key_check,
+		  int data_check)
+{
+	struct table *table = &ctl->tables[table_id];
+
+	CHECK(entry, EINVAL);
+
+	if (key_check) {
+		if (table->is_stub) {
+			/* key. */
+			CHECK(!entry->key, EINVAL);
+
+			/* key_mask. */
+			CHECK(!entry->key_mask, EINVAL);
+		} else {
+			/* key. */
+			CHECK(entry->key, EINVAL);
+
+			/* key_mask. */
+			switch (table->params.match_type) {
+			case RTE_SWX_TABLE_MATCH_WILDCARD:
+				break;
+
+			case RTE_SWX_TABLE_MATCH_LPM:
+				/* TBD Check that key mask is prefix. */
+				break;
+
+			case RTE_SWX_TABLE_MATCH_EXACT:
+				CHECK(!entry->key_mask, EINVAL);
+				break;
+
+			default:
+				CHECK(0, EINVAL);
+			}
+		}
+	}
+
+	if (data_check) {
+		struct action *a;
+		uint32_t i;
+
+		/* action_id. */
+		for (i = 0; i < table->info.n_actions; i++)
+			if (entry->action_id == table->actions[i].action_id)
+				break;
+
+		CHECK(i < table->info.n_actions, EINVAL);
+
+		/* action_data. */
+		a = &ctl->actions[entry->action_id];
+		CHECK((a->data_size && entry->action_data) ||
+		      (!a->data_size && !entry->action_data), EINVAL);
+	}
+
+	return 0;
+}
+
+static struct rte_swx_table_entry *
+table_entry_duplicate(struct rte_swx_ctl_pipeline *ctl,
+		      uint32_t table_id,
+		      struct rte_swx_table_entry *entry,
+		      int key_duplicate,
+		      int data_duplicate)
+{
+	struct table *table = &ctl->tables[table_id];
+	struct rte_swx_table_entry *new_entry = NULL;
+
+	if (!entry)
+		goto error;
+
+	new_entry = calloc(1, sizeof(struct rte_swx_table_entry));
+	if (!new_entry)
+		goto error;
+
+	if (key_duplicate && !table->is_stub) {
+		/* key. */
+		if (!entry->key)
+			goto error;
+
+		new_entry->key = malloc(table->params.key_size);
+		if (!new_entry->key)
+			goto error;
+
+		memcpy(new_entry->key, entry->key, table->params.key_size);
+
+		/* key_signature. */
+		new_entry->key_signature = entry->key_signature;
+
+		/* key_mask. */
+		if (table->params.match_type != RTE_SWX_TABLE_MATCH_EXACT) {
+			if (!entry->key_mask)
+				goto error;
+
+			new_entry->key_mask = malloc(table->params.key_size);
+			if (!new_entry->key_mask)
+				goto error;
+
+			memcpy(new_entry->key_mask,
+			       entry->key_mask,
+			       table->params.key_size);
+		}
+	}
+
+	if (data_duplicate) {
+		struct action *a;
+		uint32_t i;
+
+		/* action_id. */
+		for (i = 0; i < table->info.n_actions; i++)
+			if (entry->action_id == table->actions[i].action_id)
+				break;
+
+		if (i >= table->info.n_actions)
+			goto error;
+
+		new_entry->action_id = entry->action_id;
+
+		/* action_data. */
+		a = &ctl->actions[entry->action_id];
+		if (a->data_size) {
+			if (!entry->action_data)
+				goto error;
+
+			new_entry->action_data = malloc(a->data_size);
+			if (!new_entry->action_data)
+				goto error;
+
+			memcpy(new_entry->action_data,
+			       entry->action_data,
+			       a->data_size);
+		}
+	}
+
+	return entry;
+
+error:
+	table_entry_free(new_entry);
+	return NULL;
+}
+
+static int
+entry_keycmp_em(struct rte_swx_table_entry *e0,
+		struct rte_swx_table_entry *e1,
+		uint32_t key_size)
+{
+	if (e0->key_signature != e1->key_signature)
+		return 1; /* Not equal. */
+
+	if (memcmp(e0->key, e1->key, key_size))
+		return 1; /* Not equal. */
+
+	return 0; /* Equal */
+}
+
+static int
+entry_keycmp_wm(struct rte_swx_table_entry *e0 __rte_unused,
+		struct rte_swx_table_entry *e1 __rte_unused,
+		uint32_t key_size __rte_unused)
+{
+	/* TBD */
+
+	return 1; /* Not equal */
+}
+
+static int
+entry_keycmp_lpm(struct rte_swx_table_entry *e0 __rte_unused,
+		 struct rte_swx_table_entry *e1 __rte_unused,
+		 uint32_t key_size __rte_unused)
+{
+	/* TBD */
+
+	return 1; /* Not equal */
+}
+
+static int
+table_entry_keycmp(struct table *table,
+		   struct rte_swx_table_entry *e0,
+		   struct rte_swx_table_entry *e1)
+{
+	switch (table->params.match_type) {
+	case RTE_SWX_TABLE_MATCH_EXACT:
+		return entry_keycmp_em(e0, e1, table->params.key_size);
+
+	case RTE_SWX_TABLE_MATCH_WILDCARD:
+		return entry_keycmp_wm(e0, e1, table->params.key_size);
+
+	case RTE_SWX_TABLE_MATCH_LPM:
+		return entry_keycmp_lpm(e0, e1, table->params.key_size);
+
+	default:
+		return 1; /* Not equal. */
+	}
+}
+
+static struct rte_swx_table_entry *
+table_entries_find(struct table *table, struct rte_swx_table_entry *entry)
+{
+	struct rte_swx_table_entry *e;
+
+	TAILQ_FOREACH(e, &table->entries, node)
+		if (!table_entry_keycmp(table, entry, e))
+			return e; /* Found. */
+
+	return NULL; /* Not found. */
+}
+
+static void
+table_entries_free(struct table *table)
+{
+	for ( ; ; ) {
+		struct rte_swx_table_entry *entry;
+
+		entry = TAILQ_FIRST(&table->entries);
+		if (!entry)
+			break;
+
+		TAILQ_REMOVE(&table->entries, entry, node);
+		table_entry_free(entry);
+	}
+}
+
+static struct rte_swx_table_entry *
+table_pending_add_find(struct table *table, struct rte_swx_table_entry *entry)
+{
+	struct rte_swx_table_entry *e;
+
+	TAILQ_FOREACH(e, &table->pending_add, node)
+		if (!table_entry_keycmp(table, entry, e))
+			return e; /* Found. */
+
+	return NULL; /* Not found. */
+}
+
+static void
+table_pending_add_admit(struct table *table)
+{
+	TAILQ_CONCAT(&table->entries, &table->pending_add, node);
+}
+
+static void
+table_pending_add_free(struct table *table)
+{
+	for ( ; ; ) {
+		struct rte_swx_table_entry *entry;
+
+		entry = TAILQ_FIRST(&table->pending_add);
+		if (!entry)
+			break;
+
+		TAILQ_REMOVE(&table->pending_add, entry, node);
+		table_entry_free(entry);
+	}
+}
+
+static struct rte_swx_table_entry *
+table_pending_modify0_find(struct table *table,
+			   struct rte_swx_table_entry *entry)
+{
+	struct rte_swx_table_entry *e;
+
+	TAILQ_FOREACH(e, &table->pending_modify0, node)
+		if (!table_entry_keycmp(table, entry, e))
+			return e; /* Found. */
+
+	return NULL; /* Not found. */
+}
+
+static void
+table_pending_modify0_admit(struct table *table)
+{
+	TAILQ_CONCAT(&table->entries, &table->pending_modify0, node);
+}
+
+static void
+table_pending_modify0_free(struct table *table)
+{
+	for ( ; ; ) {
+		struct rte_swx_table_entry *entry;
+
+		entry = TAILQ_FIRST(&table->pending_modify0);
+		if (!entry)
+			break;
+
+		TAILQ_REMOVE(&table->pending_modify0, entry, node);
+		table_entry_free(entry);
+	}
+}
+
+static struct rte_swx_table_entry *
+table_pending_modify1_find(struct table *table,
+			   struct rte_swx_table_entry *entry)
+{
+	struct rte_swx_table_entry *e;
+
+	TAILQ_FOREACH(e, &table->pending_modify1, node)
+		if (!table_entry_keycmp(table, entry, e))
+			return e; /* Found. */
+
+	return NULL; /* Not found. */
+}
+
+static void
+table_pending_modify1_admit(struct table *table)
+{
+	TAILQ_CONCAT(&table->entries, &table->pending_modify1, node);
+}
+
+static void
+table_pending_modify1_free(struct table *table)
+{
+	for ( ; ; ) {
+		struct rte_swx_table_entry *entry;
+
+		entry = TAILQ_FIRST(&table->pending_modify1);
+		if (!entry)
+			break;
+
+		TAILQ_REMOVE(&table->pending_modify1, entry, node);
+		table_entry_free(entry);
+	}
+}
+
+static struct rte_swx_table_entry *
+table_pending_delete_find(struct table *table,
+			  struct rte_swx_table_entry *entry)
+{
+	struct rte_swx_table_entry *e;
+
+	TAILQ_FOREACH(e, &table->pending_delete, node)
+		if (!table_entry_keycmp(table, entry, e))
+			return e; /* Found. */
+
+	return NULL; /* Not found. */
+}
+
+static void
+table_pending_delete_admit(struct table *table)
+{
+	TAILQ_CONCAT(&table->entries, &table->pending_delete, node);
+}
+
+static void
+table_pending_delete_free(struct table *table)
+{
+	for ( ; ; ) {
+		struct rte_swx_table_entry *entry;
+
+		entry = TAILQ_FIRST(&table->pending_delete);
+		if (!entry)
+			break;
+
+		TAILQ_REMOVE(&table->pending_delete, entry, node);
+		table_entry_free(entry);
+	}
+}
+
+static void
+table_pending_default_free(struct table *table)
+{
+	if (!table->pending_default)
+		return;
+
+	free(table->pending_default->action_data);
+	free(table->pending_default);
+	table->pending_default = NULL;
+}
+
+static void
+table_free(struct rte_swx_ctl_pipeline *ctl)
+{
+	uint32_t i;
+
+	if (!ctl->tables)
+		return;
+
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *table = &ctl->tables[i];
+
+		free(table->mf);
+		free(table->actions);
+		free(table->params.key_mask0);
+
+		table_entries_free(table);
+		table_pending_add_free(table);
+		table_pending_modify0_free(table);
+		table_pending_modify1_free(table);
+		table_pending_delete_free(table);
+		table_pending_default_free(table);
+	}
+
+	free(ctl->tables);
+	ctl->tables = NULL;
+}
+
+static void
+table_state_free(struct rte_swx_ctl_pipeline *ctl)
+{
+	uint32_t i;
+
+	if (!ctl->ts_next)
+		return;
+
+	/* For each table, free its table state. */
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *table = &ctl->tables[i];
+		struct rte_swx_table_state *ts = &ctl->ts_next[i];
+
+		/* Default action data. */
+		free(ts->default_action_data);
+
+		/* Table object. */
+		if (!table->is_stub && table->ops.free && ts->obj)
+			table->ops.free(ts->obj);
+	}
+
+	free(ctl->ts_next);
+	ctl->ts_next = NULL;
+}
+
+static int
+table_state_create(struct rte_swx_ctl_pipeline *ctl)
+{
+	int status = 0;
+	uint32_t i;
+
+	ctl->ts_next = calloc(ctl->info.n_tables,
+			      sizeof(struct rte_swx_table_state));
+	if (!ctl->ts_next) {
+		status = -ENOMEM;
+		goto error;
+	}
+
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *table = &ctl->tables[i];
+		struct rte_swx_table_state *ts = &ctl->ts[i];
+		struct rte_swx_table_state *ts_next = &ctl->ts_next[i];
+
+		/* Table object. */
+		if (!table->is_stub) {
+			ts_next->obj = table->ops.create(&table->params,
+							 &table->entries,
+							 table->info.args,
+							 ctl->numa_node);
+			if (!ts_next->obj) {
+				status = -ENODEV;
+				goto error;
+			}
+		}
+
+		/* Default action data: duplicate from current table state. */
+		ts_next->default_action_data =
+			malloc(table->params.action_data_size);
+		if (!ts_next->default_action_data) {
+			status = -ENOMEM;
+			goto error;
+		}
+
+		memcpy(ts_next->default_action_data,
+		       ts->default_action_data,
+		       table->params.action_data_size);
+
+		ts_next->default_action_id = ts->default_action_id;
+	}
+
+	return 0;
+
+error:
+	table_state_free(ctl);
+	return status;
+}
+
+void
+rte_swx_ctl_pipeline_free(struct rte_swx_ctl_pipeline *ctl)
+{
+	if (!ctl)
+		return;
+
+	action_free(ctl);
+
+	table_state_free(ctl);
+
+	table_free(ctl);
+
+	free(ctl);
+}
+
+struct rte_swx_ctl_pipeline *
+rte_swx_ctl_pipeline_create(struct rte_swx_pipeline *p)
+{
+	struct rte_swx_ctl_pipeline *ctl = NULL;
+	uint32_t i;
+	int status;
+
+	if (!p)
+		goto error;
+
+	ctl = calloc(1, sizeof(struct rte_swx_ctl_pipeline));
+	if (!ctl)
+		goto error;
+
+	/* info. */
+	status = rte_swx_ctl_pipeline_info_get(p, &ctl->info);
+	if (status)
+		goto error;
+
+	/* numa_node. */
+	status = rte_swx_ctl_pipeline_numa_node_get(p, &ctl->numa_node);
+	if (status)
+		goto error;
+
+	/* p. */
+	ctl->p = p;
+
+	/* actions. */
+	ctl->actions = calloc(ctl->info.n_actions, sizeof(struct action));
+	if (!ctl->actions)
+		goto error;
+
+	for (i = 0; i < ctl->info.n_actions; i++) {
+		struct action *a = &ctl->actions[i];
+		uint32_t j;
+
+		/* info. */
+		status = rte_swx_ctl_action_info_get(p, i, &a->info);
+		if (status)
+			goto error;
+
+		/* args. */
+		a->args = calloc(a->info.n_args,
+				 sizeof(struct rte_swx_ctl_action_arg_info));
+		if (!a->args)
+			goto error;
+
+		for (j = 0; j < a->info.n_args; j++) {
+			status = rte_swx_ctl_action_arg_info_get(p,
+								 i,
+								 j,
+								 &a->args[j]);
+			if (status)
+				goto error;
+		}
+
+		/* data_size. */
+		for (j = 0; j < a->info.n_args; j++) {
+			struct rte_swx_ctl_action_arg_info *info = &a->args[j];
+
+			a->data_size += info->n_bits;
+		}
+
+		a->data_size = (a->data_size + 7) / 8;
+	}
+
+	/* tables. */
+	ctl->tables = calloc(ctl->info.n_tables, sizeof(struct table));
+	if (!ctl->tables)
+		goto error;
+
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *t = &ctl->tables[i];
+
+		TAILQ_INIT(&t->entries);
+		TAILQ_INIT(&t->pending_add);
+		TAILQ_INIT(&t->pending_modify0);
+		TAILQ_INIT(&t->pending_modify1);
+		TAILQ_INIT(&t->pending_delete);
+	}
+
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		struct table *t = &ctl->tables[i];
+		uint32_t j;
+
+		/* info. */
+		status = rte_swx_ctl_table_info_get(p, i, &t->info);
+		if (status)
+			goto error;
+
+		/* mf. */
+		t->mf = calloc(t->info.n_match_fields,
+			sizeof(struct rte_swx_ctl_table_match_field_info));
+		if (!t->mf)
+			goto error;
+
+		for (j = 0; j < t->info.n_match_fields; j++) {
+			status = rte_swx_ctl_table_match_field_info_get(p,
+				i,
+				j,
+				&t->mf[j]);
+			if (status)
+				goto error;
+		}
+
+		/* actions. */
+		t->actions = calloc(t->info.n_actions,
+			sizeof(struct rte_swx_ctl_table_action_info));
+		if (!t->actions)
+			goto error;
+
+		for (j = 0; j < t->info.n_actions; j++) {
+			status = rte_swx_ctl_table_action_info_get(p,
+				i,
+				j,
+				&t->actions[j]);
+			if (status ||
+			    t->actions[j].action_id >= ctl->info.n_actions)
+				goto error;
+		}
+
+		/* ops, is_stub. */
+		status = rte_swx_ctl_table_ops_get(p, i, &t->ops, &t->is_stub);
+		if (status)
+			goto error;
+
+		if ((t->is_stub && t->info.n_match_fields) ||
+		    (!t->is_stub && !t->info.n_match_fields))
+			goto error;
+
+		/* params. */
+		status = table_params_get(ctl, i);
+		if (status)
+			goto error;
+	}
+
+	/* ts. */
+	status = rte_swx_pipeline_table_state_get(p, &ctl->ts);
+	if (status)
+		goto error;
+
+	/* ts_next. */
+	status = table_state_create(ctl);
+	if (status)
+		goto error;
+
+	return ctl;
+
+error:
+	rte_swx_ctl_pipeline_free(ctl);
+	return NULL;
+}
+
+int
+rte_swx_ctl_pipeline_table_entry_add(struct rte_swx_ctl_pipeline *ctl,
+				     const char *table_name,
+				     struct rte_swx_table_entry *entry)
+{
+	struct table *table;
+	struct rte_swx_table_entry *new_entry, *existing_entry;
+	uint32_t table_id;
+
+	CHECK(ctl, EINVAL);
+	CHECK(table_name && table_name[0], EINVAL);
+
+	table = table_find(ctl, table_name);
+	CHECK(table, EINVAL);
+	table_id = table - ctl->tables;
+
+	new_entry = table_entry_duplicate(ctl, table_id, entry, 1, 1);
+	CHECK(new_entry, ENOMEM);
+
+	/* The new entry is found in the table->entries list:
+	 * - Add the new entry to the table->pending_modify1 list;
+	 * - Move the existing entry from the table->entries list to the
+	 *   table->pending_modify0 list.
+	 */
+	existing_entry = table_entries_find(table, entry);
+	if (existing_entry) {
+		TAILQ_INSERT_TAIL(&table->pending_modify1,
+				  new_entry,
+				  node);
+
+		TAILQ_REMOVE(&table->entries,
+			     existing_entry,
+			     node);
+
+		TAILQ_INSERT_TAIL(&table->pending_modify0,
+				  existing_entry,
+				  node);
+
+		return 0;
+	}
+
+	/* The new entry is found in the table->pending_add list:
+	 * - Replace the entry in the table->pending_add list with the new entry
+	 *   (and free the replaced entry).
+	 */
+	existing_entry = table_pending_add_find(table, entry);
+	if (existing_entry) {
+		TAILQ_INSERT_AFTER(&table->pending_add,
+				   existing_entry,
+				   new_entry,
+				   node);
+
+		TAILQ_REMOVE(&table->pending_add,
+			     existing_entry,
+			     node);
+
+		table_entry_free(existing_entry);
+
+		return 0;
+	}
+
+	/* The new entry is found in the table->pending_modify1 list:
+	 * - Replace the entry in the table->pending_modify1 list with the new
+	 *   entry (and free the replaced entry).
+	 */
+	existing_entry = table_pending_modify1_find(table, entry);
+	if (existing_entry) {
+		TAILQ_INSERT_AFTER(&table->pending_modify1,
+				   existing_entry,
+				   new_entry,
+				   node);
+
+		TAILQ_REMOVE(&table->pending_modify1,
+			     existing_entry,
+			     node);
+
+		table_entry_free(existing_entry);
+
+		return 0;
+	}
+
+	/* The new entry is found in the table->pending_delete list:
+	 * - Add the new entry to the table->pending_modify1 list;
+	 * - Move the existing entry from the table->pending_delete list to the
+	 *   table->pending_modify0 list.
+	 */
+	existing_entry = table_pending_delete_find(table, entry);
+	if (existing_entry) {
+		TAILQ_INSERT_TAIL(&table->pending_modify1,
+				  new_entry,
+				  node);
+
+		TAILQ_REMOVE(&table->pending_delete,
+			     existing_entry,
+			     node);
+
+		TAILQ_INSERT_TAIL(&table->pending_modify0,
+				  existing_entry,
+				  node);
+
+		return 0;
+	}
+
+	/* The new entry is not found in any of the above lists:
+	 * - Add the new entry to the table->pending_add list.
+	 */
+	TAILQ_INSERT_TAIL(&table->pending_add, new_entry, node);
+
+	return 0;
+}
+
+int
+rte_swx_ctl_pipeline_table_entry_delete(struct rte_swx_ctl_pipeline *ctl,
+					const char *table_name,
+					struct rte_swx_table_entry *entry)
+{
+	struct table *table;
+	struct rte_swx_table_entry *existing_entry;
+	uint32_t table_id;
+
+	CHECK(ctl, EINVAL);
+
+	CHECK(table_name && table_name[0], EINVAL);
+	table = table_find(ctl, table_name);
+	CHECK(table, EINVAL);
+	table_id = table - ctl->tables;
+
+	CHECK(entry, EINVAL);
+	CHECK(!table_entry_check(ctl, table_id, entry, 1, 0), EINVAL);
+
+	/* The entry is found in the table->entries list:
+	 * - Move the existing entry from the table->entries list to to the
+	 *   table->pending_delete list.
+	 */
+	existing_entry = table_entries_find(table, entry);
+	if (existing_entry) {
+		TAILQ_REMOVE(&table->entries,
+			     existing_entry,
+			     node);
+
+		TAILQ_INSERT_TAIL(&table->pending_delete,
+				  existing_entry,
+				  node);
+
+		return 0;
+	}
+
+	/* The entry is found in the table->pending_add list:
+	 * - Remove the entry from the table->pending_add list and free it.
+	 */
+	existing_entry = table_pending_add_find(table, entry);
+	if (existing_entry) {
+		TAILQ_REMOVE(&table->pending_add,
+			     existing_entry,
+			     node);
+
+		table_entry_free(existing_entry);
+	}
+
+	/* The entry is found in the table->pending_modify1 list:
+	 * - Free the entry in the table->pending_modify1 list;
+	 * - Move the existing entry from the table->pending_modify0 list to the
+	 *   table->pending_delete list.
+	 */
+	existing_entry = table_pending_modify1_find(table, entry);
+	if (existing_entry) {
+		struct rte_swx_table_entry *real_existing_entry;
+
+		TAILQ_REMOVE(&table->pending_modify1,
+			     existing_entry,
+			     node);
+
+		table_entry_free(existing_entry);
+
+		real_existing_entry = table_pending_modify0_find(table, entry);
+		CHECK(real_existing_entry, EINVAL); /* Coverity. */
+
+		TAILQ_REMOVE(&table->pending_modify0,
+			     real_existing_entry,
+			     node);
+
+		TAILQ_INSERT_TAIL(&table->pending_delete,
+				  real_existing_entry,
+				  node);
+
+		return 0;
+	}
+
+	/* The entry is found in the table->pending_delete list:
+	 * - Do nothing: the existing entry is already in the
+	 *   table->pending_delete list, i.e. already marked for delete, so
+	 *   simply keep it there as it is.
+	 */
+
+	/* The entry is not found in any of the above lists:
+	 * - Do nothing: no existing entry to delete.
+	 */
+
+	return 0;
+}
+
+int
+rte_swx_ctl_pipeline_table_default_entry_add(struct rte_swx_ctl_pipeline *ctl,
+					     const char *table_name,
+					     struct rte_swx_table_entry *entry)
+{
+	struct table *table;
+	struct rte_swx_table_entry *new_entry;
+	uint32_t table_id;
+
+	CHECK(ctl, EINVAL);
+
+	CHECK(table_name && table_name[0], EINVAL);
+	table = table_find(ctl, table_name);
+	CHECK(table, EINVAL);
+	table_id = table - ctl->tables;
+	CHECK(!table->info.default_action_is_const, EINVAL);
+
+	new_entry = table_entry_duplicate(ctl, table_id, entry, 0, 1);
+	CHECK(new_entry, ENOMEM);
+
+	table_pending_default_free(table);
+
+	table->pending_default = new_entry;
+	return 0;
+}
+
+static int
+table_rollfwd0(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+	struct rte_swx_table_state *ts_next = &ctl->ts_next[table_id];
+	struct rte_swx_table_entry *entry;
+
+	/* Reset counters. */
+	table->n_add = 0;
+	table->n_modify = 0;
+	table->n_delete = 0;
+
+	/* Add pending rules. */
+	TAILQ_FOREACH(entry, &table->pending_add, node) {
+		int status;
+
+		status = table->ops.add(ts_next->obj, entry);
+		if (status)
+			return status;
+
+		table->n_add++;
+	}
+
+	/* Modify pending rules. */
+	TAILQ_FOREACH(entry, &table->pending_modify1, node) {
+		int status;
+
+		status = table->ops.add(ts_next->obj, entry);
+		if (status)
+			return status;
+
+		table->n_modify++;
+	}
+
+	/* Delete pending rules. */
+	TAILQ_FOREACH(entry, &table->pending_delete, node) {
+		int status;
+
+		status = table->ops.del(ts_next->obj, entry);
+		if (status)
+			return status;
+
+		table->n_delete++;
+	}
+
+	return 0;
+}
+
+static void
+table_rollfwd1(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+	struct rte_swx_table_state *ts_next = &ctl->ts_next[table_id];
+	struct action *a;
+	uint8_t *action_data;
+	uint64_t action_id;
+
+	/* Copy the pending default entry. */
+	if (!table->pending_default)
+		return;
+
+	action_id = table->pending_default->action_id;
+	action_data = table->pending_default->action_data;
+	a = &ctl->actions[action_id];
+
+	memcpy(ts_next->default_action_data,
+	       action_data,
+	       a->data_size);
+
+	ts_next->default_action_id = action_id;
+}
+
+static void
+table_rollfwd2(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+
+	/* Move all the pending add entries to the table, as they are now part
+	 * of the table.
+	 */
+	table_pending_add_admit(table);
+
+	/* Move all the pending modify1 entries to table, are they are now part
+	 * of the table. Free up all the pending modify0 entries, as they are no
+	 * longer part of the table.
+	 */
+	table_pending_modify1_admit(table);
+	table_pending_modify0_free(table);
+
+	/* Free up all the pending delete entries, as they are no longer part of
+	 * the table.
+	 */
+	table_pending_delete_free(table);
+
+	/* Free up the pending default entry, as it is now part of the table. */
+	table_pending_default_free(table);
+}
+
+static void
+table_rollback(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+	struct rte_swx_table_state *ts_next = &ctl->ts_next[table_id];
+	struct rte_swx_table_entry *entry;
+
+	/* Add back all the entries that were just deleted. */
+	TAILQ_FOREACH(entry, &table->pending_delete, node) {
+		if (!table->n_delete)
+			break;
+
+		table->ops.add(ts_next->obj, entry);
+		table->n_delete--;
+	}
+
+	/* Add back the old copy for all the entries that were just
+	 * modified.
+	 */
+	TAILQ_FOREACH(entry, &table->pending_modify0, node) {
+		if (!table->n_modify)
+			break;
+
+		table->ops.add(ts_next->obj, entry);
+		table->n_modify--;
+	}
+
+	/* Delete all the entries that were just added. */
+	TAILQ_FOREACH(entry, &table->pending_add, node) {
+		if (!table->n_add)
+			break;
+
+		table->ops.del(ts_next->obj, entry);
+		table->n_add--;
+	}
+}
+
+static void
+table_abort(struct rte_swx_ctl_pipeline *ctl, uint32_t table_id)
+{
+	struct table *table = &ctl->tables[table_id];
+
+	/* Free up all the pending add entries, as none of them is part of the
+	 * table.
+	 */
+	table_pending_add_free(table);
+
+	/* Free up all the pending modify1 entries, as none of them made it to
+	 * the table. Add back all the pending modify0 entries, as none of them
+	 * was deleted from the table.
+	 */
+	table_pending_modify1_free(table);
+	table_pending_modify0_admit(table);
+
+	/* Add back all the pending delete entries, as none of them was deleted
+	 * from the table.
+	 */
+	table_pending_delete_admit(table);
+
+	/* Free up the pending default entry, as it is no longer going to be
+	 * added to the table.
+	 */
+	table_pending_default_free(table);
+}
+
+int
+rte_swx_ctl_pipeline_commit(struct rte_swx_ctl_pipeline *ctl, int abort_on_fail)
+{
+	struct rte_swx_table_state *ts;
+	int status = 0;
+	uint32_t i;
+
+	CHECK(ctl, EINVAL);
+
+	/* Operate the changes on the current ts_next before it becomes the new
+	 * ts.
+	 */
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		status = table_rollfwd0(ctl, i);
+		if (status)
+			goto rollback;
+	}
+
+	for (i = 0; i < ctl->info.n_tables; i++)
+		table_rollfwd1(ctl, i);
+
+	/* Swap the table state for the data plane. The current ts and ts_next
+	 * become the new ts_next and ts, respectively.
+	 */
+	rte_swx_pipeline_table_state_set(ctl->p, ctl->ts_next);
+	usleep(100);
+	ts = ctl->ts;
+	ctl->ts = ctl->ts_next;
+	ctl->ts_next = ts;
+
+	/* Operate the changes on the current ts_next, which is the previous ts.
+	 */
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		table_rollfwd0(ctl, i);
+		table_rollfwd1(ctl, i);
+		table_rollfwd2(ctl, i);
+	}
+
+	return 0;
+
+rollback:
+	for (i = 0; i < ctl->info.n_tables; i++) {
+		table_rollback(ctl, i);
+		if (abort_on_fail)
+			table_abort(ctl, i);
+	}
+
+	return status;
+}
+
+void
+rte_swx_ctl_pipeline_abort(struct rte_swx_ctl_pipeline *ctl)
+{
+	uint32_t i;
+
+	if (!ctl)
+		return;
+
+	for (i = 0; i < ctl->info.n_tables; i++)
+		table_abort(ctl, i);
+}
+
+#define RTE_SWX_CTL_ENTRY_TOKENS_MAX 256
+
+struct rte_swx_table_entry *
+rte_swx_ctl_pipeline_table_entry_read(struct rte_swx_ctl_pipeline *ctl,
+				      const char *table_name,
+				      const char *string)
+{
+	char *tokens[RTE_SWX_CTL_ENTRY_TOKENS_MAX];
+	struct table *table;
+	struct action *action;
+	struct rte_swx_table_entry *entry = NULL;
+	char *s0 = NULL, *s;
+	uint32_t n_tokens = 0, arg_offset = 0, i;
+
+	/* Check input arguments. */
+	if (!ctl)
+		goto error;
+
+	if (!table_name || !table_name[0])
+		goto error;
+
+	table = table_find(ctl, table_name);
+	if (!table)
+		goto error;
+
+	if (!string || !string[0])
+		goto error;
+
+	/* Memory allocation. */
+	s0 = strdup(string);
+	if (!s0)
+		goto error;
+
+	entry = table_entry_alloc(table);
+	if (!entry)
+		goto error;
+
+	/* Parse the string into tokens. */
+	for (s = s0; ; ) {
+		char *token;
+
+		token = strtok_r(s, " \f\n\r\t\v", &s);
+		if (!token)
+			break;
+
+		if (n_tokens >= RTE_SWX_CTL_ENTRY_TOKENS_MAX)
+			goto error;
+
+		tokens[n_tokens] = token;
+		n_tokens++;
+	}
+
+	if ((n_tokens < 3 + table->info.n_match_fields) ||
+	    strcmp(tokens[0], "match") ||
+	    strcmp(tokens[1 + table->info.n_match_fields], "action"))
+		goto error;
+
+	action = action_find(ctl, tokens[2 + table->info.n_match_fields]);
+	if (!action)
+		goto error;
+
+	if (n_tokens != 3 + table->info.n_match_fields +
+	    action->info.n_args * 2)
+		goto error;
+
+	/*
+	 * Match.
+	 */
+	for (i = 0; i < table->info.n_match_fields; i++) {
+		struct rte_swx_ctl_table_match_field_info *mf = &table->mf[i];
+		char *mf_val = tokens[1 + i];
+		uint64_t val;
+
+		val = strtoull(mf_val, &mf_val, 0);
+		if (mf_val[0])
+			goto error;
+
+		/* Endianness conversion. */
+		if (mf->is_header)
+			val = field_hton(val, mf->n_bits);
+
+		/* Copy key and key_mask to entry. */
+		memcpy(&entry->key[(mf->offset - table->mf[0].offset) / 8],
+		       (uint8_t *)&val,
+		       mf->n_bits / 8);
+
+		/* TBD Set entry->key_mask for wildcard and LPM tables. */
+	}
+
+	/*
+	 * Action.
+	 */
+	/* action_id. */
+	entry->action_id = action - ctl->actions;
+
+	/* action_data. */
+	for (i = 0; i < action->info.n_args; i++) {
+		struct rte_swx_ctl_action_arg_info *arg = &action->args[i];
+		char *arg_name, *arg_val;
+		uint64_t val;
+		int is_nbo = 0;
+
+		arg_name = tokens[3 + table->info.n_match_fields + i * 2];
+		arg_val = tokens[3 + table->info.n_match_fields + i * 2 + 1];
+
+		if (strcmp(arg_name, arg->name) ||
+		    (strlen(arg_val) < 4) ||
+		    ((arg_val[0] != 'H') && (arg_val[0] != 'N')) ||
+		    (arg_val[1] != '(') ||
+		    (arg_val[strlen(arg_val) - 1] != ')'))
+			goto error;
+
+		if (arg_val[0] == 'N')
+			is_nbo = 1;
+
+		arg_val[strlen(arg_val) - 1] = 0; /* Remove the ')'. */
+		arg_val += 2; /* Remove the "H(" or "N(". */
+
+		val = strtoull(arg_val, &arg_val, 0);
+		if (arg_val[0])
+			goto error;
+
+		/* Endianness conversion. */
+		if (is_nbo)
+			val = field_hton(val, arg->n_bits);
+
+		/* Copy to entry. */
+		memcpy(&entry->action_data[arg_offset],
+		       (uint8_t *)&val,
+		       arg->n_bits / 8);
+
+		arg_offset += arg->n_bits / 8;
+	}
+
+	return entry;
+
+error:
+	table_entry_free(entry);
+	free(s0);
+	return NULL;
+}
+
+int
+rte_swx_ctl_pipeline_table_fprintf(FILE *f,
+				   struct rte_swx_ctl_pipeline *ctl,
+				   const char *table_name)
+{
+	struct table *table;
+	struct rte_swx_table_entry *entry;
+	uint32_t n_entries = 0, i;
+
+	if (!f || !ctl || !table_name || !table_name[0])
+		return -EINVAL;
+
+	table = table_find(ctl, table_name);
+	if (!table)
+		return -EINVAL;
+
+	/* Table. */
+	fprintf(f, "# Table %s: key size %u bytes, key offset %u, key mask [",
+		table->info.name,
+		table->params.key_size,
+		table->params.key_offset);
+
+	for (i = 0; i < table->params.key_size; i++)
+		fprintf(f, "%02x", table->params.key_mask0[i]);
+
+	fprintf(f, "], action data size %u bytes\n",
+		table->params.action_data_size);
+
+	/* Table entries. */
+	TAILQ_FOREACH(entry, &table->entries, node) {
+		struct action *action = &ctl->actions[entry->action_id];
+
+		fprintf(f, "match ");
+		for (i = 0; i < table->params.key_size; i++)
+			fprintf(f, "%02x", entry->key[i]);
+
+		fprintf(f, " action %s ", action->info.name);
+		for (i = 0; i < action->data_size; i++)
+			fprintf(f, "%02x", entry->action_data[i]);
+
+		fprintf(f, "\n");
+		n_entries++;
+	}
+
+	TAILQ_FOREACH(entry, &table->pending_modify0, node) {
+		struct action *action = &ctl->actions[entry->action_id];
+
+		fprintf(f, "match ");
+		for (i = 0; i < table->params.key_size; i++)
+			fprintf(f, "%02x", entry->key[i]);
+
+		fprintf(f, " action %s ", action->info.name);
+		for (i = 0; i < action->data_size; i++)
+			fprintf(f, "%02x", entry->action_data[i]);
+
+		fprintf(f, "\n");
+		n_entries++;
+	}
+
+	TAILQ_FOREACH(entry, &table->pending_delete, node) {
+		struct action *action = &ctl->actions[entry->action_id];
+
+		fprintf(f, "match ");
+		for (i = 0; i < table->params.key_size; i++)
+			fprintf(f, "%02x", entry->key[i]);
+
+		fprintf(f, " action %s ", action->info.name);
+		for (i = 0; i < action->data_size; i++)
+			fprintf(f, "%02x", entry->action_data[i]);
+
+		fprintf(f, "\n");
+		n_entries++;
+	}
+
+	fprintf(f, "# Table %s currently has %u entries.\n",
+		table_name,
+		n_entries);
+	return 0;
+}
diff --git a/lib/librte_pipeline/rte_swx_ctl.h b/lib/librte_pipeline/rte_swx_ctl.h
index 344c7c833..18b065834 100644
--- a/lib/librte_pipeline/rte_swx_ctl.h
+++ b/lib/librte_pipeline/rte_swx_ctl.h
@@ -391,6 +391,176 @@ int
 rte_swx_pipeline_table_state_set(struct rte_swx_pipeline *p,
 				 struct rte_swx_table_state *table_state);
 
+/*
+ * High Level Reference Table Update API.
+ */
+
+/** Pipeline control opaque data structure. */
+struct rte_swx_ctl_pipeline;
+
+/**
+ * Pipeline control create
+ *
+ * @param[in] p
+ *   Pipeline handle.
+ * @return
+ *   Pipeline control handle, on success, or NULL, on error.
+ */
+__rte_experimental
+struct rte_swx_ctl_pipeline *
+rte_swx_ctl_pipeline_create(struct rte_swx_pipeline *p);
+
+/**
+ * Pipeline table entry add
+ *
+ * Schedule entry for addition to table or update as part of the next commit
+ * operation.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] table_name
+ *   Table name.
+ * @param[in] entry
+ *   Entry to be added to the table.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+int
+rte_swx_ctl_pipeline_table_entry_add(struct rte_swx_ctl_pipeline *ctl,
+				     const char *table_name,
+				     struct rte_swx_table_entry *entry);
+
+/**
+ * Pipeline table default entry add
+ *
+ * Schedule table default entry update as part of the next commit operation.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] table_name
+ *   Table name.
+ * @param[in] entry
+ *   The new table default entry. The *key* and *key_mask* entry fields are
+ *   ignored.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+int
+rte_swx_ctl_pipeline_table_default_entry_add(struct rte_swx_ctl_pipeline *ctl,
+					     const char *table_name,
+					     struct rte_swx_table_entry *entry);
+
+/**
+ * Pipeline table entry delete
+ *
+ * Schedule entry for deletion from table as part of the next commit operation.
+ * Request is silently discarded if no such entry exists.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] table_name
+ *   Table name.
+ * @param[in] entry
+ *   Entry to be deleted from the table. The *action_id* and *action_data* entry
+ *   fields are ignored.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+int
+rte_swx_ctl_pipeline_table_entry_delete(struct rte_swx_ctl_pipeline *ctl,
+					const char *table_name,
+					struct rte_swx_table_entry *entry);
+
+/**
+ * Pipeline commit
+ *
+ * Perform all the scheduled table work.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] abort_on_fail
+ *   When non-zero (false), all the scheduled work is discarded after a failed
+ *   commit. Otherwise, the scheduled work is still kept pending for the next
+ *   commit.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+int
+rte_swx_ctl_pipeline_commit(struct rte_swx_ctl_pipeline *ctl,
+			    int abort_on_fail);
+
+/**
+ * Pipeline abort
+ *
+ * Discard all the scheduled table work.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ */
+__rte_experimental
+void
+rte_swx_ctl_pipeline_abort(struct rte_swx_ctl_pipeline *ctl);
+
+/**
+ * Pipeline table entry read
+ *
+ * Read table entry from string.
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] table_name
+ *   Table name.
+ * @param[in] string
+ *   String containing the table entry.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+struct rte_swx_table_entry *
+rte_swx_ctl_pipeline_table_entry_read(struct rte_swx_ctl_pipeline *ctl,
+				      const char *table_name,
+				      const char *string);
+
+/**
+ * Pipeline table print to file
+ *
+ * Print all the table entries to file.
+ *
+ * @param[in] f
+ *   Output file.
+ * @param[in] ctl
+ *   Pipeline control handle.
+ * @param[in] table_name
+ *   Table name.
+ * @return
+ *   0 on success or the following error codes otherwise:
+ *   -EINVAL: Invalid argument.
+ */
+__rte_experimental
+int
+rte_swx_ctl_pipeline_table_fprintf(FILE *f,
+				   struct rte_swx_ctl_pipeline *ctl,
+				   const char *table_name);
+
+/**
+ * Pipeline control free
+ *
+ * @param[in] ctl
+ *   Pipeline control handle.
+ */
+__rte_experimental
+void
+rte_swx_ctl_pipeline_free(struct rte_swx_ctl_pipeline *ctl);
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.17.1