cassini: Only use chip checksum for ipv4 packets. (b1443e2f) · Commits · 戴 / test

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>

drivers/net/cassini.c

+7 −4

Original line number	Original line	Diff line number	Diff line
	@@ -142,8 +142,8 @@

	#define DRV_MODULE_NAME "cassini"		#define DRV_MODULE_NAME "cassini"
	#define PFX DRV_MODULE_NAME ": "		#define PFX DRV_MODULE_NAME ": "
	#define DRV_MODULE_VERSION "1.5"		#define DRV_MODULE_VERSION "1.6"
	#define DRV_MODULE_RELDATE "4 Jan 2008"		#define DRV_MODULE_RELDATE "21 May 2008"

	#define CAS_DEF_MSG_ENABLE \		#define CAS_DEF_MSG_ENABLE \
	(NETIF_MSG_DRV \| \		(NETIF_MSG_DRV \| \
	@@ -2136,9 +2136,12 @@ end_copy_pkt:
	if (addr)		if (addr)
	cas_page_unmap(addr);		cas_page_unmap(addr);
	}		}
			skb->protocol = eth_type_trans(skb, cp->dev);
			if (skb->protocol == htons(ETH_P_IP)) {
	skb->csum = csum_unfold(~csum);		skb->csum = csum_unfold(~csum);
	skb->ip_summed = CHECKSUM_COMPLETE;		skb->ip_summed = CHECKSUM_COMPLETE;
	skb->protocol = eth_type_trans(skb, cp->dev);		} else
			skb->ip_summed = CHECKSUM_NONE;
	return len;		return len;
	}		}

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