[dpdk-dev] [PATCH 4/4] net/ena: enable WC

[Rafal Kozik]

Write combining (wc) increase NIC performenca by making better
utilization of PCI bus. ENA support this feature.

To enable it load igb driver with wc_activate set to 1.

Signed-off-by: Rafal Kozik <rk at semihalf.com>
---
 drivers/net/ena/ena_ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 34b2a8d..415d89d 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1889,7 +1889,8 @@ static int eth_ena_pci_remove(struct rte_pci_device *pci_dev)
 
 static struct rte_pci_driver rte_ena_pmd = {
 	.id_table = pci_id_ena_map,
-	.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+	.drv_flags = RTE_PCI_DRV_NEED_MAPPING |
+		     RTE_PCI_DRV_WC_ACTIVATE,
 	.probe = eth_ena_pci_probe,
 	.remove = eth_ena_pci_remove,
 };
-- 
2.7.4