diff options
Diffstat (limited to 'drivers/net/xen-netback/netback.c')
| -rw-r--r-- | drivers/net/xen-netback/netback.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 773b731e3e52..611aebee4583 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1043,10 +1043,7 @@ static int xenvif_set_skb_gso(struct xenvif *vif, } skb_shinfo(skb)->gso_size = gso->u.gso.size; - - /* Header must be checked, and gso_segs computed. */ - skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY; - skb_shinfo(skb)->gso_segs = 0; + /* gso_segs will be calculated later */ return 0; } @@ -1581,6 +1578,20 @@ static int xenvif_tx_submit(struct xenvif *vif) skb_probe_transport_header(skb, 0); + /* If the packet is GSO then we will have just set up the + * transport header offset in checksum_setup so it's now + * straightforward to calculate gso_segs. + */ + if (skb_is_gso(skb)) { + int mss = skb_shinfo(skb)->gso_size; + int hdrlen = skb_transport_header(skb) - + skb_mac_header(skb) + + tcp_hdrlen(skb); + + skb_shinfo(skb)->gso_segs = + DIV_ROUND_UP(skb->len - hdrlen, mss); + } + vif->dev->stats.rx_bytes += skb->len; vif->dev->stats.rx_packets++; |