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app/testpmd: fix pointer reference in macswap

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The pointer is misused and could set wrong MAC address. As a result, some
of packets can be dropped in receiver side due to MAC address mismatch.
This can be shown as performance degradation.

Bugzilla ID: 188
Fixes: 62b52877adbe ("app/testpmd: batch MAC swap for performance on x86")

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>
This commit is contained in:
Yongseok Koh 2019-01-14 02:00:21 -08:00 committed by Ferruh Yigit
parent 04df418f0f
commit cc28a6907b
1 changed files with 1 additions and 1 deletions
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app/test-pmd/macswap_sse.h
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@ -76,7 +76,7 @@ do_macswap(struct rte_mbuf *pkts[], uint16_t nb,
eth_hdr[0] = rte_pktmbuf_mtod(mb[0], struct ether_hdr *);
/* Swap dest and src mac addresses. */
addr0 = _mm_loadu_si128((__m128i *)eth_hdr);
addr0 = _mm_loadu_si128((__m128i *)eth_hdr[0]);
addr0 = _mm_shuffle_epi8(addr0, shfl_msk);
_mm_storeu_si128((__m128i *)eth_hdr[0], addr0);