[dpdk-dev] [PATCH v2 2/4] net/ixgbevf: set the inter-interrupt interval for EITR.

[xiangxia . m . yue]

From: Tonghao Zhang <zhangtong...@didichuxing.com>

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

Signed-off-by: Tonghao Zhang <zhangtong...@didichuxing.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 94d9df3..5d652d8 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -5801,6 +5801,9 @@ 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_MIN_INTER_INTERRUPT_INTERVAL_DEFAULT & 0xFFF);
 }
 
 /**
-- 
1.8.3.1