[dpdk-dev] [PATCH 2/5] net/ixgbevf: set the inter-interrupt interval for EITR.

[Tonghao Zhang]

Set EITR interval as default. This patch can improve the performance
when we enable the rx-intrrupt to process the packets because we hope
rx-intrrupt reduce CPU.

The 200us value of EITR makes the performance better with the low CPU.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue at gmail.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index e67389f..b20cab9 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5780,6 +5780,9 @@ static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev, bool on)
 		if (vector_idx < base + intr_handle->nb_efd - 1)
 			vector_idx++;
 	}
+
+	IXGBE_WRITE_REG(hw, IXGBE_VTEITR(IXGBE_MISC_VEC_ID),
+			IXGBE_EITR_INTERVAL_US(200) | IXGBE_EITR_CNT_WDIS);
 }
 
 /**
-- 
1.8.3.1