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Diffstat (limited to 'src/vnet/tcp/tcp_input.c')
-rw-r--r--src/vnet/tcp/tcp_input.c28
1 files changed, 0 insertions, 28 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index cc373f5b665..bdaa28ec3d0 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1263,26 +1263,6 @@ tcp_session_enqueue_ooo (tcp_connection_t * tc, vlib_buffer_t * b,
return TCP_ERROR_ENQUEUED_OOO;
}
-/**
- * Check if ACK could be delayed. If ack can be delayed, it should return
- * true for a full frame. If we're always acking return 0.
- */
-always_inline int
-tcp_can_delack (tcp_connection_t * tc)
-{
- /* Send ack if ... */
- if (TCP_ALWAYS_ACK
- /* just sent a rcv wnd 0
- || (tc->flags & TCP_CONN_SENT_RCV_WND0) != 0 */
- /* constrained to send ack */
- || (tc->flags & TCP_CONN_SNDACK) != 0
- /* we're almost out of tx wnd */
- || tcp_available_cc_snd_space (tc) < 4 * tc->snd_mss)
- return 0;
-
- return 1;
-}
-
static int
tcp_buffer_discard_bytes (vlib_buffer_t * b, u32 n_bytes_to_drop)
{
@@ -1371,14 +1351,6 @@ in_order:
/* In order data, enqueue. Fifo figures out by itself if any out-of-order
* segments can be enqueued after fifo tail offset changes. */
error = tcp_session_enqueue_data (tc, b, n_data_bytes);
- if (tcp_can_delack (tc))
- {
- if (!tcp_timer_is_active (tc, TCP_TIMER_DELACK))
- tcp_timer_set (&wrk->timer_wheel, tc, TCP_TIMER_DELACK,
- tcp_cfg.delack_time);
- goto done;
- }
-
tcp_program_ack (tc);
done: