Added prefetch of first packet payload cacheline in i40e_rx_scan_hw_ring Added prefetch of second mbuf cacheline in i40e_rx_alloc_bufs
Signed-off-by: Vladyslav Buslov <vladyslav.buslov at harmonicinc.com> --- drivers/net/i40e/i40e_rxtx.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index d3cfb98..e493fb4 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -1003,6 +1003,7 @@ i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq) /* Translate descriptor info to mbuf parameters */ for (j = 0; j < nb_dd; j++) { mb = rxep[j].mbuf; + rte_prefetch0(RTE_PTR_ADD(mb->buf_addr, RTE_PKTMBUF_HEADROOM)); qword1 = rte_le_to_cpu_64(\ rxdp[j].wb.qword1.status_error_len); pkt_len = ((qword1 & I40E_RXD_QW1_LENGTH_PBUF_MASK) >> @@ -1086,9 +1087,11 @@ i40e_rx_alloc_bufs(struct i40e_rx_queue *rxq) rxdp = &rxq->rx_ring[alloc_idx]; for (i = 0; i < rxq->rx_free_thresh; i++) { - if (likely(i < (rxq->rx_free_thresh - 1))) + if (likely(i < (rxq->rx_free_thresh - 1))) { /* Prefetch next mbuf */ - rte_prefetch0(rxep[i + 1].mbuf); + rte_prefetch0(&rxep[i + 1].mbuf->cacheline0); + rte_prefetch0(&rxep[i + 1].mbuf->cacheline1); + } mb = rxep[i].mbuf; rte_mbuf_refcnt_set(mb, 1); -- 2.8.3