netdev - [PATCH net-next 6/9] net/mlx4_en: Save previous MAC address of the port so we can replace it later

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Message-Id: <1360063716-13415-7-git-send-email-amirv@mellanox.com>
Date:	Tue,  5 Feb 2013 13:28:33 +0200
From:	Amir Vadai <amirv@...lanox.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	Amir Vadai <amirv@...lanox.com>, netdev@...r.kernel.org,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Yan Burman <yanb@...lanox.com>
Subject: [PATCH net-next 6/9] net/mlx4_en: Save previous MAC address of the port so we can replace it later

From: Yan Burman <yanb@...lanox.com>

In preparation to having more than one unicast MAC per port, we need to keep track
of the previous MAC address in the flow of ndo_set_mac_address,
so that mlx4_en_replace_mac will know what to replace.

Signed-off-by: Yan Burman <yanb@...lanox.com>
Signed-off-by: Amir Vadai <amirv@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 80067d5..72a3fe5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -591,7 +591,7 @@ static void mlx4_en_put_qp(struct mlx4_en_priv *priv)
 }
 
 static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn,
-			       unsigned char *new_mac)
+			       unsigned char *new_mac, unsigned char *prev_mac)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct mlx4_dev *dev = mdev->dev;
@@ -657,7 +657,7 @@ static void mlx4_en_do_set_mac(struct work_struct *work)
 	if (priv->port_up) {
 		/* Remove old MAC and insert the new one */
 		err = mlx4_en_replace_mac(priv, priv->base_qpn,
-					  priv->dev->dev_addr);
+					  priv->dev->dev_addr, priv->prev_mac);
 		if (err)
 			en_err(priv, "Failed changing HW MAC address\n");
 		memcpy(priv->prev_mac, priv->dev->dev_addr,
-- 
1.7.6.4

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