[PATCH v2 2/3] net/ionic: remove duplicate barriers

[Andrew Boyer]

These barriers are duplicated by the barriers inside
rte_write64(). Remove them to improve performance.

Signed-off-by: Neel Patel <neel.patel at amd.com>
Signed-off-by: Andrew Boyer <andrew.boyer at amd.com>
---
 drivers/net/ionic/ionic_main.c        | 1 -
 drivers/net/ionic/ionic_rxtx_sg.c     | 1 -
 drivers/net/ionic/ionic_rxtx_simple.c | 1 -
 3 files changed, 3 deletions(-)

diff --git a/drivers/net/ionic/ionic_main.c b/drivers/net/ionic/ionic_main.c
index 1f24f64a33..814bb3b8f4 100644
--- a/drivers/net/ionic/ionic_main.c
+++ b/drivers/net/ionic/ionic_main.c
@@ -223,7 +223,6 @@ ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
 	q->head_idx = Q_NEXT_TO_POST(q, 1);
 
 	/* Ring doorbell */
-	rte_wmb();
 	ionic_q_flush(q);
 
 err_out:
diff --git a/drivers/net/ionic/ionic_rxtx_sg.c b/drivers/net/ionic/ionic_rxtx_sg.c
index e8dec99c04..3820fd850f 100644
--- a/drivers/net/ionic/ionic_rxtx_sg.c
+++ b/drivers/net/ionic/ionic_rxtx_sg.c
@@ -218,7 +218,6 @@ ionic_xmit_pkts_sg(void *tx_queue, struct rte_mbuf **tx_pkts,
 	}
 
 	if (nb_tx > 0) {
-		rte_wmb();
 		ionic_txq_flush(q);
 
 		txq->last_wdog_cycles = rte_get_timer_cycles();
diff --git a/drivers/net/ionic/ionic_rxtx_simple.c b/drivers/net/ionic/ionic_rxtx_simple.c
index 9674b4d1df..4c9b9415ad 100644
--- a/drivers/net/ionic/ionic_rxtx_simple.c
+++ b/drivers/net/ionic/ionic_rxtx_simple.c
@@ -191,7 +191,6 @@ ionic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 	}
 
 	if (nb_tx > 0) {
-		rte_wmb();
 		ionic_txq_flush(q);
 
 		txq->last_wdog_cycles = rte_get_timer_cycles();
-- 
2.17.1