[PATCH v3 4/4] net/ena: enable WC
From: Rafal Kozik <hidden>
Date: 2018-06-29 10:24:45
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> Acked-by: Bruce Richardson <redacted> --- 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