dpdk: Prefetch correct size of rte_mbuf

sizeof(rte_mbuf) is 128 byte but 2* CLIB_CACHE_LINE_BYTES
is 256 byte for ThunderX/OCTEONTx targets.

Type: fix

Change-Id: If6893b168cf1c55c44bf4669a888ce858f2ef487
Signed-off-by: Nitin Saxena <nsaxena@marvell.com>

diff --git a/src/plugins/dpdk/device/device.c b/src/plugins/dpdk/device/device.c
index 270abe1..8778d71 100644 (file)
--- a/src/plugins/dpdk/device/device.c
+++ b/src/plugins/dpdk/device/device.c
@@ -214,7 +214,7 @@ static_always_inline void
 dpdk_prefetch_buffer (vlib_main_t * vm, struct rte_mbuf *mb)
 {
   vlib_buffer_t *b = vlib_buffer_from_rte_mbuf (mb);
-  CLIB_PREFETCH (mb, 2 * CLIB_CACHE_LINE_BYTES, STORE);
+  CLIB_PREFETCH (mb, sizeof (struct rte_mbuf), STORE);
   CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
 }