[dpdk-dev] [PATCH v2 2/4] net/ixgbevf: set the inter-interrupt interval for EITR.
xiangxia.m.yue at gmail.com
xiangxia.m.yue at gmail.com
Thu Oct 26 16:04:59 CEST 2017
From: Tonghao Zhang <zhangtonghao at 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 <zhangtonghao at 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
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