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From: xiangxia.m.yue@gmail.com
To: dev@dpdk.org
Cc: Tonghao Zhang <zhangtonghao@didichuxing.com>,
	Tonghao Zhang <xiangxia.m.yue@gmail.com>
Subject: [PATCH 2/4] net/ixgbevf: set the inter-interrupt interval for EITR.
Date: Thu, 26 Oct 2017 06:44:42 -0700	[thread overview]
Message-ID: <1509025484-15771-2-git-send-email-xiangxia.m.yue@gmail.com> (raw)
In-Reply-To: <1509025484-15771-1-git-send-email-xiangxia.m.yue@gmail.com>

From: Tonghao Zhang <zhangtonghao@didichuxing.com>

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.

Signed-off-by: Tonghao Zhang <zhangtonghao@didichuxing.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@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 5994e55..6eb90e4 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

  reply	other threads:[~2017-10-26 13:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-26 13:44 [PATCH 1/4] net/ixgbevf: unregister irq handler when other interrupts not allowed xiangxia.m.yue
2017-10-26 13:44 ` xiangxia.m.yue [this message]
2017-10-26 13:44 ` [PATCH 3/4] net/ixgbevf: save IXGBE_VTEIMS to intr->mask for performance xiangxia.m.yue
2017-10-26 13:44 ` [PATCH 4/4] net/ixgbevf: add check for rte_intr_enable xiangxia.m.yue

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