From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 5 Jun 2015 08:59:48 +0000 (+0000)
Subject: ramips: change ethernet napi interrupt sequence
X-Git-Tag: reboot~2858
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2a66c9886ff039587169e50014f1d6e95af1d3ae;p=openwrt%2Fstaging%2Fxback.git

ramips: change ethernet napi interrupt sequence

when open device. first ready napi software rx.
then enable hardware interrupt.
final start software tx queue to send data.

Signed-off-by: michael lee <igvtee@gmail.com>

SVN-Revision: 45894
---

diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
index 60c3c91246..bef715b40c 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
@@ -1153,7 +1153,6 @@ static int fe_open(struct net_device *dev)
 		goto err_out;
 
 	spin_lock_irqsave(&priv->page_lock, flags);
-	napi_enable(&priv->rx_napi);
 
 	val = FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN;
 	if (priv->flags & FE_FLAG_RX_2B_OFFSET)
@@ -1169,8 +1168,9 @@ static int fe_open(struct net_device *dev)
 	if (priv->soc->has_carrier && priv->soc->has_carrier(priv))
 		netif_carrier_on(dev);
 
-	netif_start_queue(dev);
+	napi_enable(&priv->rx_napi);
 	fe_int_enable(priv->soc->tx_int | priv->soc->rx_int);
+	netif_start_queue(dev);
 
 	return 0;
 
@@ -1185,15 +1185,14 @@ static int fe_stop(struct net_device *dev)
 	unsigned long flags;
 	int i;
 
-	fe_int_disable(priv->soc->tx_int | priv->soc->rx_int);
-
 	netif_tx_disable(dev);
+	fe_int_disable(priv->soc->tx_int | priv->soc->rx_int);
+	napi_disable(&priv->rx_napi);
 
 	if (priv->phy)
 		priv->phy->stop(priv);
 
 	spin_lock_irqsave(&priv->page_lock, flags);
-	napi_disable(&priv->rx_napi);
 
 	fe_reg_w32(fe_reg_r32(FE_REG_PDMA_GLO_CFG) &
 		     ~(FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN),