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path: root/drivers/net/ethernet/mellanox/mlx4/en_tx.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_tx.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_tx.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 2b799f4f1c37..6771b69f40d5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -630,10 +630,15 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
ring->tx_csum++;
}
- /* Copy dst mac address to wqe */
- ethh = (struct ethhdr *)skb->data;
- tx_desc->ctrl.srcrb_flags16[0] = get_unaligned((__be16 *)ethh->h_dest);
- tx_desc->ctrl.imm = get_unaligned((__be32 *)(ethh->h_dest + 2));
+ if (mlx4_is_mfunc(mdev->dev) || priv->validate_loopback) {
+ /* Copy dst mac address to wqe. This allows loopback in eSwitch,
+ * so that VFs and PF can communicate with each other
+ */
+ ethh = (struct ethhdr *)skb->data;
+ tx_desc->ctrl.srcrb_flags16[0] = get_unaligned((__be16 *)ethh->h_dest);
+ tx_desc->ctrl.imm = get_unaligned((__be32 *)(ethh->h_dest + 2));
+ }
+
/* Handle LSO (TSO) packets */
if (lso_header_size) {
/* Mark opcode as LSO */