From: Rafal Kozik <r...@semihalf.com>
Before sending next packet, check if calling doorbell is needed.
Signed-off-by: Rafal Kozik <r...@semihalf.com>
Acked-by: Michal Krawczyk <m...@semihalf.com>
---
drivers/net/ena/ena_ethdev.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index f83552377..5f7dec086 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2363,7 +2363,16 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct
rte_mbuf **tx_pkts,
ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
- /* Write data to device */
+ if (ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
+ &ena_tx_ctx)) {
+ RTE_LOG(DEBUG, PMD, "llq tx max burst size of queue %d"
+ " achieved, writing doorbell to send burst\n",
+ tx_ring->id);
+ rte_wmb();
+ ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+ }
+
+ /* prepare the packet's descriptors to dma engine */
rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq,
&ena_tx_ctx, &nb_hw_desc);
if (unlikely(rc))
--
2.14.1
