[dpdk-dev] [PATCH v4 18/19] net/hinic: optimize RX performance

[Xiaoyun wang]

This patch optimizes receive packets performance
on arm platform.

Signed-off-by: Xiaoyun wang <cloud.wangxiaoyun at huawei.com>
---
 drivers/net/hinic/hinic_pmd_rx.c | 5 +----
 drivers/net/hinic/hinic_pmd_rx.h | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/hinic/hinic_pmd_rx.c b/drivers/net/hinic/hinic_pmd_rx.c
index a9f3962..743bae9 100644
--- a/drivers/net/hinic/hinic_pmd_rx.c
+++ b/drivers/net/hinic/hinic_pmd_rx.c
@@ -971,13 +971,10 @@ u16 hinic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, u16 nb_pkts)
 	while (pkts < nb_pkts) {
 		 /* 2. current ci is done */
 		rx_cqe = &rxq->rx_cqe[sw_ci];
-		status = rx_cqe->status;
+		status = __atomic_load_n(&rx_cqe->status, __ATOMIC_ACQUIRE);
 		if (!HINIC_GET_RX_DONE_BE(status))
 			break;
 
-		/* read other cqe member after status */
-		rte_rmb();
-
 		/* convert cqe and get packet length */
 		hinic_rq_cqe_be_to_cpu32(&cqe, (volatile void *)rx_cqe);
 		vlan_len = cqe.vlan_len;
diff --git a/drivers/net/hinic/hinic_pmd_rx.h b/drivers/net/hinic/hinic_pmd_rx.h
index 5cd17ec..1a80f95 100644
--- a/drivers/net/hinic/hinic_pmd_rx.h
+++ b/drivers/net/hinic/hinic_pmd_rx.h
@@ -35,7 +35,7 @@ struct hinic_rq_cqe {
 	u32 rss_hash;
 
 	u32 rsvd[4];
-};
+} __rte_cache_aligned;
 
 struct hinic_rq_cqe_sect {
 	struct hinic_sge	sge;
-- 
1.8.3.1