TCP ooo reception fixes

- Improve svm fifo handling of out-of-order segments
- Ensure tsval_recent is updated only if rcv_las falls withing the
  segments's sequence space
- Avoid directly dropping old ACKs
- Improve debugging

Change-Id: I88dbe2394a0ad7eb389a4cc12d013a13733953aa
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/vnet/tcp/tcp_format.c b/src/vnet/tcp/tcp_format.c
index 3148fd406c9..4de99235934 100644
--- a/src/vnet/tcp/tcp_format.c
+++ b/src/vnet/tcp/tcp_format.c
@@ -131,11 +131,13 @@ format_tcp_header (u8 * s, va_list * args)
 u8 *
 format_tcp_sacks (u8 * s, va_list * args)
 {
-  sack_block_t *sacks = va_arg (*args, sack_block_t *);
+  tcp_connection_t *tc = va_arg (*args, tcp_connection_t *);
+  sack_block_t *sacks = tc->snd_sacks;
   sack_block_t *block;
   vec_foreach (block, sacks)
   {
-    s = format (s, " start %u end %u\n", block->start, block->end);
+    s = format (s, " start %u end %u\n", block->start - tc->irs,
+		block->end - tc->irs);
   }
   return s;
 }