diff mbox series

[18/20] net/ena: update completion queue after cleanup

Message ID 20181214131846.22439-19-mk@semihalf.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series net/ena: ENAv2 release | expand

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Michal Krawczyk Dec. 14, 2018, 1:18 p.m. UTC 
From: Rafal Kozik <rk@semihalf.com>

After Rx or Tx cleanup update completion queue head by calling
ena_com_update_dev_comp_head().

Fixes: 1daff5260ff8 ("net/ena: use unmasked head and tail")

Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
 drivers/net/ena/ena_ethdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 2b84cc79d..b336102ba 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2126,8 +2126,10 @@  static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 
 	desc_in_use = desc_in_use - completed + 1;
 	/* Burst refill to save doorbells, memory barriers, const interval */
-	if (ring_size - desc_in_use > ENA_RING_DESCS_RATIO(ring_size))
+	if (ring_size - desc_in_use > ENA_RING_DESCS_RATIO(ring_size)) {
+		ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
 		ena_populate_rx_queue(rx_ring, ring_size - desc_in_use);
+	}
 
 	return recv_idx;
 }
@@ -2438,8 +2440,9 @@  static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 
 	if (total_tx_descs > 0) {
 		/* acknowledge completion of sent packets */
-		ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
 		tx_ring->next_to_clean = next_to_clean;
+		ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
+		ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
 	}
 
 	tx_ring->tx_stats.tx_poll++;