diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-07-24 06:22:59 +0200 |
|---|---|---|
| committer | Lennert Buytenhek <buytenh@marvell.com> | 2008-07-24 06:22:59 +0200 |
| commit | e32b66175072d75bde1ddca4227a6723ca17e0af (patch) | |
| tree | bdbd3342dd0575976f15114759a95c6ff07e95d2 /arch/arm | |
| parent | 2f7eb47a7b9f703d4f7dfdab358df6ff1f2a2204 (diff) | |
mv643xx_eth: enable hardware TX checksumming with vlan tags
Although mv643xx_eth has no hardware support for inserting a vlan
tag by twiddling some bits in the TX descriptor, it does support
hardware TX checksumming on packets where the IP header starts {a
limited set of values other than 14} bytes into the packet.
This patch sets mv643xx_eth's ->vlan_features to NETIF_F_SG |
NETIF_F_IP_CSUM, which prevents the stack from checksumming vlan'ed
packets in software, and if vlan tags are present on a transmitted
packet, notifies the hardware of this fact by toggling the right
bits in the TX descriptor.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Diffstat (limited to 'arch/arm')
0 files changed, 0 insertions, 0 deletions