diff options
Diffstat (limited to 'include/haproxy/quic_loss-t.h')
-rw-r--r-- | include/haproxy/quic_loss-t.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/haproxy/quic_loss-t.h b/include/haproxy/quic_loss-t.h new file mode 100644 index 0000000..0f07ddc --- /dev/null +++ b/include/haproxy/quic_loss-t.h @@ -0,0 +1,62 @@ +/* + * include/types/quic_loss.h + * This file contains definitions for QUIC loss detection. + * + * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation, version 2.1 + * exclusively. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _TYPES_QUIC_LOSS_H +#define _TYPES_QUIC_LOSS_H +#ifdef USE_QUIC +#ifndef USE_OPENSSL +#error "Must define USE_OPENSSL" +#endif + +#include <inttypes.h> + +/* Maximum reordering in packets. */ +#define QUIC_LOSS_PACKET_THRESHOLD 3 +#define QUIC_TIMER_GRANULARITY 1U /* 1ms */ +#define QUIC_LOSS_INITIAL_RTT 333U /* 333ms */ + +/* QUIC loss time threshold expressed an RTT multiplier + * (QUIC_LOSS_TIME_THRESHOLD_MULTIPLICAND / QUIC_LOSS_TIME_THRESHOLD_DIVISOR) + */ +#define QUIC_LOSS_TIME_THRESHOLD_MULTIPLICAND 9 +#define QUIC_LOSS_TIME_THRESHOLD_DIVISOR 8 + +/* Note that all the unit of variables for QUIC LOSS detections + * is the tick. + */ + +struct quic_loss { + /* The most recent RTT measurement (ms) */ + unsigned int latest_rtt; + /* Smoothed RTT (ms) */ + unsigned int srtt; + /* RTT variation (ms) */ + unsigned int rtt_var; + /* Minimum RTT (ms) */ + unsigned int rtt_min; + /* Number of NACKed sent PTO. */ + unsigned int pto_count; + unsigned long nb_lost_pkt; + unsigned long nb_reordered_pkt; +}; + +#endif /* USE_QUIC */ +#endif /* _TYPES_QUIC_LOSS_H */ |