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")
Cc: qi.z.zh...@intel.com
Cc: sta...@dpdk.org
Signed-off-by: Yongseok Koh <ys...@mellanox.com>
---
app/test-pmd/macswap_sse.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/app/test-pmd/macswap_sse.h b/app/test-pmd/macswap_sse.h
index 7d268bfbb0..662fe79cf9 100644
--- a/app/test-pmd/macswap_sse.h
+++ b/app/test-pmd/macswap_sse.h
@@ -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);
--
2.11.0
