>From 3b74ad6134f8eccce9ee391fb02ff15863630c1b Mon Sep 17 00:00:00 2001 From: Zhu Yanjun Date: Thu, 3 Apr 2014 16:41:13 +0800 Subject: [PATCH 1/1] gianfar: disable TX vlan based on kernel 2.6.x 2.6.x kernels require a similar logic change as commit e1653c3e [gianfar: do vlan cleanup] and commit 51b8cbfc [gianfar: fix bug caused by e1653c3e] introduces for newer kernels. Since there is something wrong with tx vlan of gianfar nic driver, in kernel(3.1+), tx vlan is disabled. But in kernel 2.6.x, tx vlan is still enabled. Thus,gianfar nic driver can not support vlan packets and non-vlan packets at the same time. Signed-off-by: Zhu Yanjun --- drivers/net/gianfar.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 934a28f..8aa2cf6 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -365,7 +365,7 @@ static int gfar_probe(struct of_device *ofdev, priv->vlgrp = NULL; if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) - dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; + dev->features |= NETIF_F_HW_VLAN_RX; if (priv->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) { priv->extended_hash = 1; @@ -1451,12 +1451,6 @@ static void gfar_vlan_rx_register(struct net_device *dev, priv->vlgrp = grp; if (grp) { - /* Enable VLAN tag insertion */ - tempval = gfar_read(&priv->regs->tctrl); - tempval |= TCTRL_VLINS; - - gfar_write(&priv->regs->tctrl, tempval); - /* Enable VLAN tag extraction */ tempval = gfar_read(&priv->regs->rctrl); tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT); -- 1.7.9.5