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[PATCH] skge: handle VLAN checksum correctly on yukon rev 0

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If using UDP over VLAN, with the skge driver there is a possibility
of generating an incorrect checksum. This is a unlikely occurrence
because it is only an issue on Yukon revision 0, and that revision
doesn't seem to exist on any current hardware (probably early prototype).

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Stephen Hemminger 2005-11-28 11:38:50 -08:00 committed by Jeff Garzik
parent c08ad1e304
commit 1096e87174
1 changed files with 1 additions and 3 deletions
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4
drivers/net/skge.c
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@ -2300,14 +2300,12 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
td->dma_hi = map >> 32;
if (skb->ip_summed == CHECKSUM_HW) {
const struct iphdr *ip
= (const struct iphdr *) (skb->data + ETH_HLEN);
int offset = skb->h.raw - skb->data;
/* This seems backwards, but it is what the sk98lin
* does. Looks like hardware is wrong?
*/
if (ip->protocol == IPPROTO_UDP
if (skb->h.ipih->protocol == IPPROTO_UDP
&& hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
control = BMU_TCP_CHECK;
else