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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2023 Marvell International Ltd.
*/
#include <arpa/inet.h>
#include <sys/socket.h>
#include <rte_ethdev.h>
#include <rte_ether.h>
#include <rte_graph.h>
#include <rte_graph_worker.h>
#include <rte_ip.h>
#include <rte_lpm.h>
#include <rte_hash.h>
#include <rte_fbk_hash.h>
#include <rte_jhash.h>
#include <rte_hash_crc.h>
#include "rte_node_ip4_api.h"
#include "node_private.h"
static uint16_t
ip4_local_node_process_scalar(struct rte_graph *graph, struct rte_node *node,
void **objs, uint16_t nb_objs)
{
void **to_next, **from;
uint16_t last_spec = 0;
rte_edge_t next_index;
struct rte_mbuf *mbuf;
uint16_t held = 0;
uint32_t l4;
int i;
/* Speculative next */
next_index = RTE_NODE_IP4_LOCAL_NEXT_UDP4_INPUT;
from = objs;
to_next = rte_node_next_stream_get(graph, node, next_index, nb_objs);
for (i = 0; i < nb_objs; i++) {
uint16_t next;
mbuf = (struct rte_mbuf *)objs[i];
l4 = mbuf->packet_type & RTE_PTYPE_L4_MASK;
next = (l4 == RTE_PTYPE_L4_UDP)
? next_index
: RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP;
if (unlikely(next_index != next)) {
/* Copy things successfully speculated till now */
rte_memcpy(to_next, from, last_spec * sizeof(from[0]));
from += last_spec;
to_next += last_spec;
held += last_spec;
last_spec = 0;
rte_node_enqueue_x1(graph, node, next, from[0]);
from += 1;
} else {
last_spec += 1;
}
}
/* !!! Home run !!! */
if (likely(last_spec == nb_objs)) {
rte_node_next_stream_move(graph, node, next_index);
return nb_objs;
}
held += last_spec;
rte_memcpy(to_next, from, last_spec * sizeof(from[0]));
rte_node_next_stream_put(graph, node, next_index, held);
return nb_objs;
}
static struct rte_node_register ip4_local_node = {
.process = ip4_local_node_process_scalar,
.name = "ip4_local",
.nb_edges = RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP + 1,
.next_nodes = {
[RTE_NODE_IP4_LOCAL_NEXT_UDP4_INPUT] = "udp4_input",
[RTE_NODE_IP4_LOCAL_NEXT_PKT_DROP] = "pkt_drop",
},
};
RTE_NODE_REGISTER(ip4_local_node);
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