netdev - [PATCH] net: ethernet: ave: enable Rx drop interrupt

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Message-Id: <1520576840-17566-1-git-send-email-hayashi.kunihiko@socionext.com>
Date:   Fri,  9 Mar 2018 15:27:20 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH] net: ethernet: ave: enable Rx drop interrupt

This enables AVE_GI_RXDROP interrupt factor. This factor indicates
depletion of Rx descriptors and the handler counts the number
of dropped packets.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
---
 drivers/net/ethernet/socionext/sni_ave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/socionext/sni_ave.c b/drivers/net/ethernet/socionext/sni_ave.c
index b247707..043eb55 100644
--- a/drivers/net/ethernet/socionext/sni_ave.c
+++ b/drivers/net/ethernet/socionext/sni_ave.c
@@ -1349,7 +1349,7 @@ static int ave_open(struct net_device *ndev)
 	val |= AVE_IIRQC_EN0 | (AVE_INTM_COUNT << 16);
 	writel(val, priv->base + AVE_IIRQC);
 
-	val = AVE_GI_RXIINT | AVE_GI_RXOVF | AVE_GI_TX;
+	val = AVE_GI_RXIINT | AVE_GI_RXOVF | AVE_GI_TX | AVE_GI_RXDROP;
 	ave_irq_restore(ndev, val);
 
 	napi_enable(&priv->napi_rx);
-- 
2.7.4