From 5c1c9ddc6d50656beef56b03cf87510f1a01e5ef Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 May 2008 17:05:34 -0700 Subject: [PATCH] cassini: Only use chip checksum for ipv4 packets. [ upstream commit: b1443e2f6501f06930a162ff1ff08382a98bf23e ] According to David Monro, at least with Natsemi Saturn chips the cassini driver has some trouble with ipv6 checksums. Until we have more information about what's going on here, only use the chip checksums for ipv4. This workaround was suggested and tested by David. Update version and release date. Signed-off-by: David S. Miller Signed-off-by: Chris Wright --- drivers/net/cassini.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 14299f8063af1..863d7f3eb21e1 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -142,8 +142,8 @@ #define DRV_MODULE_NAME "cassini" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.5" -#define DRV_MODULE_RELDATE "4 Jan 2008" +#define DRV_MODULE_VERSION "1.6" +#define DRV_MODULE_RELDATE "21 May 2008" #define CAS_DEF_MSG_ENABLE \ (NETIF_MSG_DRV | \ @@ -2140,9 +2140,12 @@ end_copy_pkt: if (addr) cas_page_unmap(addr); } - skb->csum = csum_unfold(~csum); - skb->ip_summed = CHECKSUM_COMPLETE; skb->protocol = eth_type_trans(skb, cp->dev); + if (skb->protocol == htons(ETH_P_IP)) { + skb->csum = csum_unfold(~csum); + skb->ip_summed = CHECKSUM_COMPLETE; + } else + skb->ip_summed = CHECKSUM_NONE; return len; } -- 2.47.2