diff options
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmveth.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmveth.h | 1 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index 33ffd349fb05..29bbb628d712 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -101,6 +101,7 @@ struct ibmveth_stat ibmveth_stats[] = { { "fw_enabled_ipv4_csum", IBMVETH_STAT_OFF(fw_ipv4_csum_support) }, { "fw_enabled_ipv6_csum", IBMVETH_STAT_OFF(fw_ipv6_csum_support) }, { "tx_large_packets", IBMVETH_STAT_OFF(tx_large_packets) }, + { "rx_large_packets", IBMVETH_STAT_OFF(rx_large_packets) } }; /* simple methods of getting data from the current rxq entry */ @@ -1094,6 +1095,7 @@ static int ibmveth_poll(struct napi_struct *napi, int budget) struct net_device *netdev = adapter->netdev; int frames_processed = 0; unsigned long lpar_rc; + struct iphdr *iph; restart_poll: while (frames_processed < budget) { @@ -1136,8 +1138,21 @@ restart_poll: skb_put(skb, length); skb->protocol = eth_type_trans(skb, netdev); - if (csum_good) + if (csum_good) { skb->ip_summed = CHECKSUM_UNNECESSARY; + if (be16_to_cpu(skb->protocol) == ETH_P_IP) { + iph = (struct iphdr *)skb->data; + + /* If the IP checksum is not offloaded and if the packet + * is large send, the checksum must be rebuilt. + */ + if (iph->check == 0xffff) { + iph->check = 0; + iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); + adapter->rx_large_packets++; + } + } + } napi_gro_receive(napi, skb); /* send it up */ diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h index 56d1e22bd1d3..41dedb1fb2ae 100644 --- a/drivers/net/ethernet/ibm/ibmveth.h +++ b/drivers/net/ethernet/ibm/ibmveth.h @@ -162,6 +162,7 @@ struct ibmveth_adapter { u64 tx_map_failed; u64 tx_send_failed; u64 tx_large_packets; + u64 rx_large_packets; }; /* |