Write combining (WC) increases NIC performance by making better
utilization of PCI bus. ENA PMD may make usage of this feature.
To enable it load igb_uio driver with wc_activate set to 1.
Signed-off-by: Rafal Kozik <r...@semihalf.com>
Acked-by: Bruce Richardson <bruce.richard...@intel.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 9ae73e3..1870edf 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -2210,7 +2210,8 @@ 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 | RTE_PCI_DRV_INTR_LSC,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
+ RTE_PCI_DRV_WC_ACTIVATE,
.probe = eth_ena_pci_probe,
.remove = eth_ena_pci_remove,
};
--
2.7.4
