[v9,09/12] app/graph: support ethdev Rx command line interfaces

diff --git a/app/graph/cli.c b/app/graph/cli.c
index f564362da1..ad7d7deadf 100644
--- a/app/graph/cli.c
+++ b/app/graph/cli.c
@@ -30,6 +30,8 @@  cmdline_parse_ctx_t modules_ctx[] = {
 	(cmdline_parse_inst_t *)&ethdev_ip6_cmd_ctx,
 	(cmdline_parse_inst_t *)&ethdev_cmd_ctx,
 	(cmdline_parse_inst_t *)&ethdev_help_cmd_ctx,
+	(cmdline_parse_inst_t *)&ethdev_rx_cmd_ctx,
+	(cmdline_parse_inst_t *)&ethdev_rx_help_cmd_ctx,
 	(cmdline_parse_inst_t *)&ipv4_lookup_cmd_ctx,
 	(cmdline_parse_inst_t *)&ipv4_lookup_help_cmd_ctx,
 	(cmdline_parse_inst_t *)&ipv6_lookup_cmd_ctx,
diff --git a/app/graph/ethdev_rx.c b/app/graph/ethdev_rx.c
new file mode 100644
index 0000000000..f2cb8cf9a5
--- /dev/null
+++ b/app/graph/ethdev_rx.c
@@ -0,0 +1,165 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Marvell.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <cmdline_parse.h>
+#include <cmdline_parse_num.h>
+#include <cmdline_parse_string.h>
+#include <cmdline_socket.h>
+#include <rte_ethdev.h>
+
+#include "ethdev_rx_priv.h"
+#include "module_api.h"
+
+static const char
+cmd_ethdev_rx_help[] = "ethdev_rx map port <ethdev_name> queue <q_num> core <core_id>";
+
+static struct lcore_params lcore_params_array[ETHDEV_RX_LCORE_PARAMS_MAX];
+struct rte_node_ethdev_config ethdev_conf[RTE_MAX_ETHPORTS];
+struct lcore_params *lcore_params = lcore_params_array;
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+uint16_t nb_lcore_params;
+
+static void
+rx_map_configure(uint8_t port_id, uint32_t queue, uint32_t core)
+{
+	uint8_t n_rx_queue;
+
+	n_rx_queue = lcore_conf[core].n_rx_queue;
+	lcore_conf[core].rx_queue_list[n_rx_queue].port_id = port_id;
+	lcore_conf[core].rx_queue_list[n_rx_queue].queue_id = queue;
+	lcore_conf[core].n_rx_queue++;
+}
+
+uint8_t
+ethdev_rx_num_rx_queues_get(uint16_t port)
+{
+	int queue = -1;
+	uint16_t i;
+
+	for (i = 0; i < nb_lcore_params; ++i) {
+		if (lcore_params[i].port_id == port) {
+			if (lcore_params[i].queue_id == queue + 1)
+				queue = lcore_params[i].queue_id;
+			else
+				rte_exit(EXIT_FAILURE,
+					 "Queue ids of the port %d must be"
+					 " in sequence and must start with 0\n",
+					 lcore_params[i].port_id);
+		}
+	}
+
+	return (uint8_t)(++queue);
+}
+
+static int
+ethdev_rx_map_add(char *name, uint32_t queue, uint32_t core)
+{
+	uint64_t coremask;
+	uint16_t port_id;
+	int rc;
+
+	if (nb_lcore_params >= ETHDEV_RX_LCORE_PARAMS_MAX)
+		return -EINVAL;
+
+	rc = rte_eth_dev_get_port_by_name(name, &port_id);
+	if (rc)
+		return -EINVAL;
+
+	coremask = 0xff; /* FIXME: Read from graph configuration */
+
+	if (!(coremask & (1 << core)))
+		return -EINVAL;
+
+	rx_map_configure(port_id, queue, core);
+
+	lcore_params_array[nb_lcore_params].port_id = port_id;
+	lcore_params_array[nb_lcore_params].queue_id = queue;
+	lcore_params_array[nb_lcore_params].lcore_id = core;
+	nb_lcore_params++;
+	return 0;
+}
+
+static void
+cli_ethdev_rx_help(__rte_unused void *parsed_result, __rte_unused struct cmdline *cl,
+		   __rte_unused void *data)
+{
+	size_t len;
+
+	len = strlen(conn->msg_out);
+	conn->msg_out += len;
+	snprintf(conn->msg_out, conn->msg_out_len_max, "\n%s\n%s\n",
+		 "----------------------------- ethdev_rx command help -----------------------------",
+		 cmd_ethdev_rx_help);
+
+	len = strlen(conn->msg_out);
+	conn->msg_out_len_max -= len;
+}
+
+static void
+cli_ethdev_rx(void *parsed_result, __rte_unused struct cmdline *cl, void *data __rte_unused)
+{
+	struct ethdev_rx_cmd_tokens *res = parsed_result;
+	int rc = -EINVAL;
+
+	rc = ethdev_rx_map_add(res->dev, res->qid, res->core_id);
+	if (rc < 0) {
+		cli_exit();
+		printf(MSG_CMD_FAIL, res->cmd);
+		rte_exit(EXIT_FAILURE, "input core is Invalid\n");
+	}
+
+}
+
+cmdline_parse_token_string_t ethdev_rx_cmd =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, cmd, "ethdev_rx");
+cmdline_parse_token_string_t ethdev_rx_map =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, map, "map");
+cmdline_parse_token_string_t ethdev_rx_port =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, port, "port");
+cmdline_parse_token_string_t ethdev_rx_dev =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, dev, NULL);
+cmdline_parse_token_string_t ethdev_rx_queue =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, queue, "queue");
+cmdline_parse_token_num_t ethdev_rx_qid =
+	TOKEN_NUM_INITIALIZER(struct ethdev_rx_cmd_tokens, qid, RTE_UINT32);
+cmdline_parse_token_string_t ethdev_rx_core =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_cmd_tokens, core, "core");
+cmdline_parse_token_num_t ethdev_rx_core_id =
+	TOKEN_NUM_INITIALIZER(struct ethdev_rx_cmd_tokens, core_id, RTE_UINT32);
+
+cmdline_parse_inst_t ethdev_rx_cmd_ctx = {
+	.f = cli_ethdev_rx,
+	.data = NULL,
+	.help_str = cmd_ethdev_rx_help,
+	.tokens = {
+		(void *)&ethdev_rx_cmd,
+		(void *)&ethdev_rx_map,
+		(void *)&ethdev_rx_port,
+		(void *)&ethdev_rx_dev,
+		(void *)&ethdev_rx_queue,
+		(void *)&ethdev_rx_qid,
+		(void *)&ethdev_rx_core,
+		(void *)&ethdev_rx_core_id,
+		NULL,
+	},
+};
+
+cmdline_parse_token_string_t ethdev_rx_help_cmd =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_help_cmd_tokens, cmd, "help");
+cmdline_parse_token_string_t ethdev_rx_help_module =
+	TOKEN_STRING_INITIALIZER(struct ethdev_rx_help_cmd_tokens, module, "ethdev_rx");
+
+cmdline_parse_inst_t ethdev_rx_help_cmd_ctx = {
+	.f = cli_ethdev_rx_help,
+	.data = NULL,
+	.help_str = "",
+	.tokens = {
+		(void *)&ethdev_rx_help_cmd,
+		(void *)&ethdev_rx_help_module,
+		NULL,
+	},
+};
diff --git a/app/graph/ethdev_rx.h b/app/graph/ethdev_rx.h
new file mode 100644
index 0000000000..8e7b31448c
--- /dev/null
+++ b/app/graph/ethdev_rx.h
@@ -0,0 +1,37 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Marvell.
+ */
+
+#ifndef APP_GRAPH_ETHDEV_RX_H
+#define APP_GRAPH_ETHDEV_RX_H
+
+#include <rte_graph.h>
+#include <rte_node_eth_api.h>
+
+#define ETHDEV_RX_LCORE_PARAMS_MAX 1024
+#define ETHDEV_RX_QUEUE_PER_LCORE_MAX 16
+
+struct lcore_rx_queue {
+	uint16_t port_id;
+	uint8_t queue_id;
+	char node_name[RTE_NODE_NAMESIZE];
+};
+
+struct lcore_conf {
+	uint16_t n_rx_queue;
+	struct lcore_rx_queue rx_queue_list[ETHDEV_RX_QUEUE_PER_LCORE_MAX];
+	struct rte_graph *graph;
+	char name[RTE_GRAPH_NAMESIZE];
+	rte_graph_t graph_id;
+} __rte_cache_aligned;
+
+uint8_t ethdev_rx_num_rx_queues_get(uint16_t port);
+
+extern struct rte_node_ethdev_config ethdev_conf[RTE_MAX_ETHPORTS];
+extern struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+extern cmdline_parse_inst_t ethdev_rx_help_cmd_ctx;
+extern cmdline_parse_inst_t ethdev_rx_cmd_ctx;
+extern struct lcore_params *lcore_params;
+extern uint16_t nb_lcore_params;
+
+#endif
diff --git a/app/graph/ethdev_rx_priv.h b/app/graph/ethdev_rx_priv.h
new file mode 100644
index 0000000000..5d155be043
--- /dev/null
+++ b/app/graph/ethdev_rx_priv.h
@@ -0,0 +1,39 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Marvell.
+ */
+
+#ifndef APP_GRAPH_ETHDEV_RX_PRIV_H
+#define APP_GRAPH_ETHDEV_RX_PRIV_H
+
+#include <stdint.h>
+
+#include <rte_graph.h>
+#include <rte_node_eth_api.h>
+
+#define MAX_RX_QUEUE_PER_PORT 128
+#define MAX_JUMBO_PKT_LEN  9600
+#define NB_SOCKETS 8
+
+struct ethdev_rx_cmd_tokens {
+	cmdline_fixed_string_t cmd;
+	cmdline_fixed_string_t map;
+	cmdline_fixed_string_t port;
+	cmdline_fixed_string_t dev;
+	cmdline_fixed_string_t queue;
+	cmdline_fixed_string_t core;
+	uint32_t core_id;
+	uint32_t qid;
+};
+
+struct ethdev_rx_help_cmd_tokens {
+	cmdline_fixed_string_t cmd;
+	cmdline_fixed_string_t module;
+};
+
+struct lcore_params {
+	uint16_t port_id;
+	uint8_t queue_id;
+	uint8_t lcore_id;
+} __rte_cache_aligned;
+
+#endif
diff --git a/app/graph/meson.build b/app/graph/meson.build
index 8fa9d605b9..d8391d5cae 100644
--- a/app/graph/meson.build
+++ b/app/graph/meson.build
@@ -12,6 +12,7 @@  deps += ['graph', 'eal', 'lpm', 'ethdev', 'node', 'cmdline']
 sources = files(
         'cli.c',
         'conn.c',
+        'ethdev_rx.c',
         'ethdev.c',
         'ip4_route.c',
         'ip6_route.c',
diff --git a/app/graph/module_api.h b/app/graph/module_api.h
index e9e42da7cc..56b7c94ecc 100644
--- a/app/graph/module_api.h
+++ b/app/graph/module_api.h
@@ -11,6 +11,7 @@ 
 #include "cli.h"
 #include "conn.h"
 #include "ethdev.h"
+#include "ethdev_rx.h"
 #include "mempool.h"
 #include "neigh.h"
 #include "route.h"
diff --git a/doc/guides/tools/graph.rst b/doc/guides/tools/graph.rst
index 65aa42f500..cf738b7a39 100644
--- a/doc/guides/tools/graph.rst
+++ b/doc/guides/tools/graph.rst
@@ -152,6 +152,16 @@  file to express the requested use case configuration.
      - Command to dump neigh help message
      - Yes
      - Yes
+   * - ethdev_rx map port <ethdev_name> queue <q_num> core <core_id>
+     - Command to add port-queue-core mapping to ``ethdev_rx`` node. ``ethdev_rx``
+       node instance will be pinned on given core and will poll on requested
+       port/queue pair.
+     - No
+     - No
+   * - help ethdev_rx
+     - Command to dump ethdev_rx help message
+     - Yes
+     - Yes
 
 Runtime configuration
 ---------------------