1 files changed, 115 insertions, 0 deletions
diff --git a/src/spdk/dpdk/lib/librte_node/ethdev_ctrl.c b/src/spdk/dpdk/lib/librte_node/ethdev_ctrl.c
new file mode 100644
index 000000000..13b8b705f
--- /dev/null
+++ b/src/spdk/dpdk/lib/librte_node/ethdev_ctrl.c
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2020 Marvell International Ltd.
+ */
+
+#include <rte_debug.h>
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+#include <rte_graph.h>
+
+#include "rte_node_eth_api.h"
+
+#include "ethdev_rx_priv.h"
+#include "ethdev_tx_priv.h"
+#include "ip4_rewrite_priv.h"
+#include "node_private.h"
+
+static struct ethdev_ctrl {
+	uint16_t nb_graphs;
+} ctrl;
+
+int
+rte_node_eth_config(struct rte_node_ethdev_config *conf, uint16_t nb_confs,
+		    uint16_t nb_graphs)
+{
+	struct rte_node_register *ip4_rewrite_node;
+	struct ethdev_tx_node_main *tx_node_data;
+	uint16_t tx_q_used, rx_q_used, port_id;
+	struct rte_node_register *tx_node;
+	char name[RTE_NODE_NAMESIZE];
+	const char *next_nodes = name;
+	struct rte_mempool *mp;
+	int i, j, rc;
+	uint32_t id;
+
+	ip4_rewrite_node = ip4_rewrite_node_get();
+	tx_node_data = ethdev_tx_node_data_get();
+	tx_node = ethdev_tx_node_get();
+	for (i = 0; i < nb_confs; i++) {
+		port_id = conf[i].port_id;
+
+		if (!rte_eth_dev_is_valid_port(port_id))
+			return -EINVAL;
+
+		/* Check for mbuf minimum private size requirement */
+		for (j = 0; j < conf[i].mp_count; j++) {
+			mp = conf[i].mp[j];
+			if (!mp)
+				continue;
+			/* Check for minimum private space */
+			if (rte_pktmbuf_priv_size(mp) < NODE_MBUF_PRIV2_SIZE) {
+				node_err("ethdev",
+					 "Minimum mbuf priv size requirement not met by mp %s",
+					 mp->name);
+				return -EINVAL;
+			}
+		}
+
+		rx_q_used = conf[i].num_rx_queues;
+		tx_q_used = conf[i].num_tx_queues;
+		/* Check if we have a txq for each worker */
+		if (tx_q_used < nb_graphs)
+			return -EINVAL;
+
+		/* Create node for each rx port queue pair */
+		for (j = 0; j < rx_q_used; j++) {
+			struct ethdev_rx_node_main *rx_node_data;
+			struct rte_node_register *rx_node;
+			ethdev_rx_node_elem_t *elem;
+
+			rx_node_data = ethdev_rx_get_node_data_get();
+			rx_node = ethdev_rx_node_get();
+			snprintf(name, sizeof(name), "%u-%u", port_id, j);
+			/* Clone a new rx node with same edges as parent */
+			id = rte_node_clone(rx_node->id, name);
+			if (id == RTE_NODE_ID_INVALID)
+				return -EIO;
+
+			/* Add it to list of ethdev rx nodes for lookup */
+			elem = malloc(sizeof(ethdev_rx_node_elem_t));
+			memset(elem, 0, sizeof(ethdev_rx_node_elem_t));
+			elem->ctx.port_id = port_id;
+			elem->ctx.queue_id = j;
+			elem->nid = id;
+			elem->next = rx_node_data->head;
+			rx_node_data->head = elem;
+
+			node_dbg("ethdev", "Rx node %s-%s: is at %u",
+				 rx_node->name, name, id);
+		}
+
+		/* Create a per port tx node from base node */
+		snprintf(name, sizeof(name), "%u", port_id);
+		/* Clone a new node with same edges as parent */
+		id = rte_node_clone(tx_node->id, name);
+		tx_node_data->nodes[port_id] = id;
+
+		node_dbg("ethdev", "Tx node %s-%s: is at %u", tx_node->name,
+			 name, id);
+
+		/* Prepare the actual name of the cloned node */
+		snprintf(name, sizeof(name), "ethdev_tx-%u", port_id);
+
+		/* Add this tx port node as next to ip4_rewrite_node */
+		rte_node_edge_update(ip4_rewrite_node->id, RTE_EDGE_ID_INVALID,
+				     &next_nodes, 1);
+		/* Assuming edge id is the last one alloc'ed */
+		rc = ip4_rewrite_set_next(
+			port_id, rte_node_edge_count(ip4_rewrite_node->id) - 1);
+		if (rc < 0)
+			return rc;
+	}
+
+	ctrl.nb_graphs = nb_graphs;
+	return 0;
+}