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authorDavid S. Miller <davem@davemloft.net>2008-05-21 17:05:34 -0700
committerDavid S. Miller <davem@davemloft.net>2008-05-21 17:05:34 -0700
commitb1443e2f6501f06930a162ff1ff08382a98bf23e (patch)
treeae711be064ae8aa65f92ec6e81e155e66ba56513
parent7d227cd235c809c36c847d6a597956ad9e9d2bae (diff)
cassini: Only use chip checksum for ipv4 packets.
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 <davem@davemloft.net>
-rw-r--r--drivers/net/cassini.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 93e13636f8d..83768df2780 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 | \
@@ -2136,9 +2136,12 @@ 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;
}