From: Florin Coras Date: Tue, 22 Oct 2019 20:34:30 +0000 (-0700) Subject: tcp: track lost rxt segments in byte tracker X-Git-Tag: v20.05-rc0~486 X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=46ec6e018e95a10d46d018dbc15d90c309b5dccc;p=vpp.git tcp: track lost rxt segments in byte tracker Type: feature Change-Id: I18dfac9c3d2f539edf20dba64cd2b7b541154144 Signed-off-by: Florin Coras --- diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index 955b2dde8fe..7309e0ad109 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -256,6 +256,7 @@ typedef enum tcp_bts_flags_ TCP_BTS_IS_RXT = 1, TCP_BTS_IS_APP_LIMITED = 1 << 1, TCP_BTS_IS_SACKED = 1 << 2, + TCP_BTS_IS_RXT_LOST = 1 << 3, } __clib_packed tcp_bts_flags_t; typedef struct tcp_bt_sample_ diff --git a/src/vnet/tcp/tcp_bt.c b/src/vnet/tcp/tcp_bt.c index b3f4e6ab000..e8cf0680d4d 100644 --- a/src/vnet/tcp/tcp_bt.c +++ b/src/vnet/tcp/tcp_bt.c @@ -368,6 +368,8 @@ tcp_bt_track_rxt (tcp_connection_t * tc, u32 start, u32 end) cur = tcp_bt_alloc_tx_sample (tc, start, end); cur->flags |= TCP_BTS_IS_RXT; + if (bts->flags & TCP_BTS_IS_RXT) + cur->flags |= TCP_BTS_IS_RXT_LOST; cur->next = next_index; cur->prev = prev_index; @@ -408,6 +410,8 @@ tcp_bt_track_rxt (tcp_connection_t * tc, u32 start, u32 end) /* Have to split or tail overlap */ cur = tcp_bt_alloc_tx_sample (tc, start, end); cur->flags |= TCP_BTS_IS_RXT; + if (bts->flags & TCP_BTS_IS_RXT) + cur->flags |= TCP_BTS_IS_RXT_LOST; cur->prev = bts_index; cur_index = bt_sample_index (bt, cur);