what is the 'gso'?

["R.wen" <rwen2012@xxxxxxxxx>]

HI, all

whis is the 'gso' stand for ? Does it have some relationship with the 'tso' ?

Thanks.
       R.wen

unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
{
    struct tcp_sock *tp = tcp_sk(sk);
    struct dst_entry *dst = __sk_dst_get(sk);
    u32 mss_now;
    u16 xmit_size_goal;
    int doing_tso = 0;

    mss_now = tp->mss_cache;

   /**************** here  ******************* /
    if (large_allowed && sk_can_gso(sk) && !tp->urg_mode)
        doing_tso = 1;

       ......
}