diff options
| author | John Crispin <john@openwrt.org> | 2014-04-22 08:07:53 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2014-04-22 08:07:53 +0000 |
| commit | cdc53e2ec90b017e5a21e3a8b36536c523367de9 (patch) | |
| tree | 220b82e3ce8b17eb8fb34d7ddaa55e52e5c748f5 | |
| parent | 248678fccd8b3db8858a796fd8d3cb75da07cc28 (diff) | |
| download | upstream-cdc53e2ec90b017e5a21e3a8b36536c523367de9.tar.gz upstream-cdc53e2ec90b017e5a21e3a8b36536c523367de9.tar.bz2 upstream-cdc53e2ec90b017e5a21e3a8b36536c523367de9.zip | |
lantiq: fix maximum ethernet header length
The total ethernet frame length should be written to the hardware
register LTQ_ETOP_IGPLEN instead of just the value of the MTU. This
patch fixes network issues on various Danube boards, especially when
VLAN tagging is enabled.
Signed-off-by: Matti Laakso <malaakso at elisanet.fi>
SVN-Revision: 40541
| -rw-r--r-- | target/linux/lantiq/patches-3.10/0207-NET-fix-etop-igplen.patch | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.10/0207-NET-fix-etop-igplen.patch b/target/linux/lantiq/patches-3.10/0207-NET-fix-etop-igplen.patch new file mode 100644 index 0000000000..59bdcbf33b --- /dev/null +++ b/target/linux/lantiq/patches-3.10/0207-NET-fix-etop-igplen.patch @@ -0,0 +1,22 @@ +--- a/drivers/net/ethernet/lantiq_etop.c ++++ b/drivers/net/ethernet/lantiq_etop.c +@@ -31,6 +31,7 @@ + #include <linux/mm.h> + #include <linux/platform_device.h> + #include <linux/ethtool.h> ++#include <linux/if_vlan.h> + #include <linux/init.h> + #include <linux/delay.h> + #include <linux/io.h> +@@ -764,8 +765,10 @@ ltq_etop_change_mtu(struct net_device *d + struct ltq_etop_priv *priv = netdev_priv(dev); + unsigned long flags; + ++ int max = ETH_HLEN + VLAN_HLEN + new_mtu + ETH_FCS_LEN; ++ + spin_lock_irqsave(&priv->lock, flags); +- ltq_etop_w32((ETOP_PLEN_UNDER << 16) | new_mtu, ++ ltq_etop_w32((ETOP_PLEN_UNDER << 16) | max, + LTQ_ETOP_IGPLEN); + spin_unlock_irqrestore(&priv->lock, flags); + } |