X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Fnet%2Fethernet%2Fbroadcom%2Fbcmsysport.c;h=9ae36979bdee010aa2e8a276dc17611593e3383c;hb=6b0490816671b2f4126a99998c9bf3c8c0472de2;hp=d9b9170ed2fc329d5d5c8522fdc3803ec90cb49b;hpb=87d7bcee4f5973a593b0d50134364cfe5652ff33;p=cascardo%2Flinux.git

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index d9b9170ed2fc..9ae36979bdee 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -139,6 +139,15 @@ static int bcm_sysport_set_rx_csum(struct net_device *dev,
 	else
 		reg &= ~RXCHK_SKIP_FCS;
 
+	/* If Broadcom tags are enabled (e.g: using a switch), make
+	 * sure we tell the RXCHK hardware to expect a 4-bytes Broadcom
+	 * tag after the Ethernet MAC Source Address.
+	 */
+	if (netdev_uses_dsa(dev))
+		reg |= RXCHK_BRCM_TAG_EN;
+	else
+		reg &= ~RXCHK_BRCM_TAG_EN;
+
 	rxchk_writel(priv, reg, RXCHK_CONTROL);
 
 	return 0;
@@ -427,7 +436,8 @@ static int bcm_sysport_set_wol(struct net_device *dev,
 	/* Flag the device and relevant IRQ as wakeup capable */
 	if (wol->wolopts) {
 		device_set_wakeup_enable(kdev, 1);
-		enable_irq_wake(priv->wol_irq);
+		if (priv->wol_irq_disabled)
+			enable_irq_wake(priv->wol_irq);
 		priv->wol_irq_disabled = 0;
 	} else {
 		device_set_wakeup_enable(kdev, 0);
@@ -848,7 +858,8 @@ static irqreturn_t bcm_sysport_wol_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
+static struct sk_buff *bcm_sysport_insert_tsb(struct sk_buff *skb,
+					      struct net_device *dev)
 {
 	struct sk_buff *nskb;
 	struct bcm_tsb *tsb;
@@ -864,7 +875,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
 		if (!nskb) {
 			dev->stats.tx_errors++;
 			dev->stats.tx_dropped++;
-			return -ENOMEM;
+			return NULL;
 		}
 		skb = nskb;
 	}
@@ -883,7 +894,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
 			ip_proto = ipv6_hdr(skb)->nexthdr;
 			break;
 		default:
-			return 0;
+			return skb;
 		}
 
 		/* Get the checksum offset and the L4 (transport) offset */
@@ -902,7 +913,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
 		tsb->l4_ptr_dest_map = csum_info;
 	}
 
-	return 0;
+	return skb;
 }
 
 static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
@@ -936,8 +947,8 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 
 	/* Insert TSB and checksum infos */
 	if (priv->tsb_en) {
-		ret = bcm_sysport_insert_tsb(skb, dev);
-		if (ret) {
+		skb = bcm_sysport_insert_tsb(skb, dev);
+		if (!skb) {
 			ret = NETDEV_TX_OK;
 			goto out;
 		}
@@ -1069,16 +1080,19 @@ static void bcm_sysport_adj_link(struct net_device *dev)
 	if (!phydev->pause)
 		cmd_bits |= CMD_RX_PAUSE_IGNORE | CMD_TX_PAUSE_IGNORE;
 
-	if (changed) {
+	if (!changed)
+		return;
+
+	if (phydev->link) {
 		reg = umac_readl(priv, UMAC_CMD);
 		reg &= ~((CMD_SPEED_MASK << CMD_SPEED_SHIFT) |
 			CMD_HD_EN | CMD_RX_PAUSE_IGNORE |
 			CMD_TX_PAUSE_IGNORE);
 		reg |= cmd_bits;
 		umac_writel(priv, reg, UMAC_CMD);
-
-		phy_print_status(priv->phydev);
 	}
+
+	phy_print_status(priv->phydev);
 }
 
 static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,