diff options
Diffstat (limited to 'drivers/net/ethernet/ibm/ibmveth.c')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmveth.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index fbece63395a8..a831f947ca8c 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -1181,7 +1181,9 @@ map_failed: static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt) { + struct tcphdr *tcph; int offset = 0; + int hdr_len; /* only TCP packets will be aggregated */ if (skb->protocol == htons(ETH_P_IP)) { @@ -1208,14 +1210,20 @@ static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt) /* if mss is not set through Large Packet bit/mss in rx buffer, * expect that the mss will be written to the tcp header checksum. */ + tcph = (struct tcphdr *)(skb->data + offset); if (lrg_pkt) { skb_shinfo(skb)->gso_size = mss; } else if (offset) { - struct tcphdr *tcph = (struct tcphdr *)(skb->data + offset); - skb_shinfo(skb)->gso_size = ntohs(tcph->check); tcph->check = 0; } + + if (skb_shinfo(skb)->gso_size) { + hdr_len = offset + tcph->doff * 4; + skb_shinfo(skb)->gso_segs = + DIV_ROUND_UP(skb->len - hdr_len, + skb_shinfo(skb)->gso_size); + } } static int ibmveth_poll(struct napi_struct *napi, int budget) |