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tcp: limit persist segment size if window available

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Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ie1ae401d5105aa42761d3cac5dfbe523f3995c87
This commit is contained in:
Florin Coras
2022-03-15 14:24:59 -07:00
committed by Damjan Marion
parent 679c0de84e
commit c792b9f5e9
1 changed files with 3 additions and 1 deletions
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4
src/vnet/tcp/tcp_output.c
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@ -1565,8 +1565,10 @@ tcp_timer_persist_handler (tcp_connection_t * tc)
tcp_validate_txf_size (tc, offset);
tc->snd_opts_len = tcp_make_options (tc, &tc->snd_opts, tc->state);
max_snd_bytes = clib_min (tc->snd_mss,
max_snd_bytes = clib_min (clib_min (tc->snd_mss, available_bytes),
tm->bytes_per_buffer - TRANSPORT_MAX_HDRS_LEN);
if (tc->snd_wnd > 0)
max_snd_bytes = clib_min (tc->snd_wnd, max_snd_bytes);
n_bytes = session_tx_fifo_peek_bytes (&tc->connection, data, offset,
max_snd_bytes);
b->current_length = n_bytes;