bpf: allow self-xor operation
[dpdk.git] / app / test-pmd / macswap.h
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2018 Intel Corporation
3  */
4
5 #ifndef _MACSWAP_H_
6 #define _MACSWAP_H_
7
8 #include "macswap_common.h"
9
10 static inline void
11 do_macswap(struct rte_mbuf *pkts[], uint16_t nb,
12                 struct rte_port *txp)
13 {
14         struct rte_ether_hdr *eth_hdr;
15         struct rte_mbuf *mb;
16         struct rte_ether_addr addr;
17         uint64_t ol_flags;
18         int i;
19
20         ol_flags = ol_flags_init(txp->dev_conf.txmode.offloads);
21         vlan_qinq_set(pkts, nb, ol_flags,
22                         txp->tx_vlan_id, txp->tx_vlan_id_outer);
23
24         for (i = 0; i < nb; i++) {
25                 if (likely(i < nb - 1))
26                         rte_prefetch0(rte_pktmbuf_mtod(pkts[i+1], void *));
27                 mb = pkts[i];
28
29                 eth_hdr = rte_pktmbuf_mtod(mb, struct rte_ether_hdr *);
30
31                 /* Swap dest and src mac addresses. */
32                 rte_ether_addr_copy(&eth_hdr->dst_addr, &addr);
33                 rte_ether_addr_copy(&eth_hdr->src_addr, &eth_hdr->dst_addr);
34                 rte_ether_addr_copy(&addr, &eth_hdr->src_addr);
35
36                 mbuf_field_set(mb, ol_flags);
37         }
38 }
39
40 #endif /* _MACSWAP_H_ */