/**
* @skb_list can be invalid after the function call, don't try to use it.
*/
static void
ss_do_send(struct sock *sk, SsSkbList *skb_list)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
int size, mss = tcp_send_mss(sk, &size, MSG_DONTWAIT);
SS_DBG("%s: cpu=%d sk=%p queue_empty=%d send_head=%p"
" sk_state=%d mss=%d size=%d\n", __func__,
smp_processor_id(), sk, tcp_write_queue_empty(sk),
tcp_send_head(sk), sk->sk_state, mss, size);
if (unlikely(!ss_sock_active(sk)))
return;
ss_sock_cpu_check(sk);
while ((skb = ss_skb_dequeue(skb_list))) {
skb->ip_summed = CHECKSUM_PARTIAL;
skb_shinfo(skb)->gso_segs = 0;
/*
* TODO Mark all data with PUSH to force receiver to consume
* the data. Currently we do this for debugging purposes.
* We need to do this only for complete messages/skbs.
* Actually tcp_push() already does it for the last skb.
* MSG_MORE should be used, probably by connection layer.
*/
tcp_mark_push(tp, skb);
SS_DBG("%s: entail skb=%p data_len=%u len=%u\n",
__func__, skb, skb->data_len, skb->len);
ss_skb_entail(sk, skb);
tp->write_seq += skb->len;
TCP_SKB_CB(skb)->end_seq += skb->len;
}
SS_DBG("%s: sk=%p send_head=%p sk_state=%d\n", __func__,
sk, tcp_send_head(sk), sk->sk_state);
tcp_push(sk, MSG_DONTWAIT, mss, TCP_NAGLE_OFF|TCP_NAGLE_PUSH, size);
}
void rtl_tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb)
{
tcp_mark_push(tp, skb);
}