As part of performance optimization excercise, tuning
the prefetch placement.
Signed-off-by: Hemant Agrawal <hemant.agra...@nxp.com>
---
drivers/net/dpaa/dpaa_rxtx.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index 2c57741..c4471c2 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -370,10 +370,6 @@ dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
if (unlikely(format == qm_fd_sg))
return dpaa_eth_sg_to_mbuf(fd, ifid);
- ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
-
- rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
-
offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
length = fd->opaque & DPAA_FD_LENGTH_MASK;
@@ -381,8 +377,11 @@ dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
/* Ignoring case when format != qm_fd_contig */
dpaa_display_frame(fd);
+ ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
+ /* Prefetch the Parse results and packet data to L1 */
+ rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
mbuf->data_off = offset;
mbuf->data_len = length;
--
2.7.4
