ibmvnic: Fix IPv6 packet descriptors

Packet descriptor generation for IPv6 is broken.
Properly set L3 and L4 protocol flags for IPv6 descriptors.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 0a3a844f6473673b709eaae406ee97b8e23e627b..ab2e1917cd04290eef52bf188f2f2def6ae389cc 100644 (file)
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1276,6 +1276,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
        unsigned char *dst;
        u64 *handle_array;
        int index = 0;
+       u8 proto = 0;
        int ret = 0;
 
        if (adapter->resetting) {
@@ -1364,17 +1365,18 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
        }
 
        if (skb->protocol == htons(ETH_P_IP)) {
-               if (ip_hdr(skb)->version == 4)
-                       tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_IPV4;
-               else if (ip_hdr(skb)->version == 6)
-                       tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_IPV6;
-
-               if (ip_hdr(skb)->protocol == IPPROTO_TCP)
-                       tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_TCP;
-               else if (ip_hdr(skb)->protocol != IPPROTO_TCP)
-                       tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_UDP;
+               tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_IPV4;
+               proto = ip_hdr(skb)->protocol;
+       } else if (skb->protocol == htons(ETH_P_IPV6)) {
+               tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_IPV6;
+               proto = ipv6_hdr(skb)->nexthdr;
        }
 
+       if (proto == IPPROTO_TCP)
+               tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_TCP;
+       else if (proto == IPPROTO_UDP)
+               tx_crq.v1.flags1 |= IBMVNIC_TX_PROT_UDP;
+
        if (skb->ip_summed == CHECKSUM_PARTIAL) {
                tx_crq.v1.flags1 |= IBMVNIC_TX_CHKSUM_OFFLOAD;
                hdrs += 2;