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| author | Yong Zhang <yong.zhang0@gmail.com> | 2009-08-07 16:36:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-09 21:45:40 -0700 |
| commit | 75c4885924f01aed1f887886a49dfa89960de240 (patch) | |
| tree | dc7e1c6ea8f5400041c2670c518a9372cc6e8e21 /drivers/net/gianfar.c | |
| parent | 148675a7b2061b5a5eb194530b7c4d8de1f2887e (diff) | |
| download | kernel_samsung_tuna-75c4885924f01aed1f887886a49dfa89960de240.zip kernel_samsung_tuna-75c4885924f01aed1f887886a49dfa89960de240.tar.gz kernel_samsung_tuna-75c4885924f01aed1f887886a49dfa89960de240.tar.bz2 | |
gianfar: keep vlan related state when restart
If vlan has been enabled. ifdown followed by ifup will lost hardware
related state.
Also remove duplicated operation in gfar_vlan_rx_register().
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/gianfar.c')
| -rw-r--r-- | drivers/net/gianfar.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index f8ffcbf..e212f2c 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -936,6 +936,7 @@ int startup_gfar(struct net_device *dev) struct gfar __iomem *regs = priv->regs; int err = 0; u32 rctrl = 0; + u32 tctrl = 0; u32 attrs = 0; gfar_write(®s->imask, IMASK_INIT_CLEAR); @@ -1111,11 +1112,19 @@ int startup_gfar(struct net_device *dev) rctrl |= RCTRL_PADDING(priv->padding); } + /* keep vlan related bits if it's enabled */ + if (priv->vlgrp) { + rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT; + tctrl |= TCTRL_VLINS; + } + /* Init rctrl based on our settings */ gfar_write(&priv->regs->rctrl, rctrl); if (dev->features & NETIF_F_IP_CSUM) - gfar_write(&priv->regs->tctrl, TCTRL_INIT_CSUM); + tctrl |= TCTRL_INIT_CSUM; + + gfar_write(&priv->regs->tctrl, tctrl); /* Set the extraction length and index */ attrs = ATTRELI_EL(priv->rx_stash_size) | @@ -1450,7 +1459,6 @@ static void gfar_vlan_rx_register(struct net_device *dev, /* Enable VLAN tag extraction */ tempval = gfar_read(&priv->regs->rctrl); - tempval |= RCTRL_VLEX; tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT); gfar_write(&priv->regs->rctrl, tempval); } else { |