diff options
author | 2017-07-13 01:24:57 -0400 | |
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committer | 2017-07-15 17:43:40 +0000 | |
commit | 3eb5062b40feb3002de09a3caff86232d6e1adea (patch) | |
tree | 70eaa2d3c021a7b4bf067557a0d62c55dc447320 /src/vnet/tcp/tcp.h | |
parent | 213b5aae860c2a9d5de8d4d070d0d2091af699f5 (diff) |
Fixes and improved tcp/session debugging
- Fix rx sack option parsing
- Add session sack scoreboard tracing and replaying
- Add svm fifo tracing and replaying
- Scoreboard/svm fifo ooo segment reception fixes
- Improved overall debugging
Change-Id: Ieae07eba355e66f5935253232bb00f2dfb7ece00
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.h')
-rw-r--r-- | src/vnet/tcp/tcp.h | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index 37b10fd4..fd0d02b9 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -62,6 +62,7 @@ typedef enum _tcp_state format_function_t format_tcp_state; format_function_t format_tcp_flags; format_function_t format_tcp_sacks; +format_function_t format_tcp_rcv_sacks; /** TCP timers */ #define foreach_tcp_timer \ @@ -151,9 +152,19 @@ enum #undef _ }; +#define TCP_SCOREBOARD_TRACE (0) #define TCP_MAX_SACK_BLOCKS 15 /**< Max number of SACK blocks stored */ #define TCP_INVALID_SACK_HOLE_INDEX ((u32)~0) +typedef struct _scoreboard_trace_elt +{ + u32 start; + u32 end; + u32 ack; + u32 snd_una_max; + u32 group; +} scoreboard_trace_elt_t; + typedef struct _sack_scoreboard_hole { u32 next; /**< Index for next entry in linked list */ @@ -177,8 +188,38 @@ typedef struct _sack_scoreboard u32 rescue_rxt; /**< Rescue sequence number */ u32 lost_bytes; /**< Bytes lost as per RFC6675 */ u32 cur_rxt_hole; /**< Retransmitting from this hole */ + +#if TCP_SCOREBOARD_TRACE + scoreboard_trace_elt_t *trace; +#endif + } sack_scoreboard_t; +#if TCP_SCOREBOARD_TRACE +#define tcp_scoreboard_trace_add(_tc, _ack) \ +{ \ + static u64 _group = 0; \ + sack_scoreboard_t *_sb = &_tc->sack_sb; \ + sack_block_t *_sack, *_sacks; \ + scoreboard_trace_elt_t *_elt; \ + int i; \ + _group++; \ + _sacks = _tc->rcv_opts.sacks; \ + for (i = 0; i < vec_len (_sacks); i++) \ + { \ + _sack = &_sacks[i]; \ + vec_add2 (_sb->trace, _elt, 1); \ + _elt->start = _sack->start; \ + _elt->end = _sack->end; \ + _elt->ack = _elt->end == _ack ? _ack : 0; \ + _elt->snd_una_max = _elt->end == _ack ? _tc->snd_una_max : 0; \ + _elt->group = _group; \ + } \ +} +#else +#define tcp_scoreboard_trace_add(_tc, _ack) +#endif + typedef enum _tcp_cc_algorithm_type { TCP_CC_NEWRENO, @@ -405,6 +446,12 @@ tcp_connection_get_if_valid (u32 conn_index, u32 thread_index) return pool_elt_at_index (tcp_main.connections[thread_index], conn_index); } +always_inline tcp_connection_t * +tcp_get_connection_from_transport (transport_connection_t * tconn) +{ + return (tcp_connection_t *) tconn; +} + void tcp_connection_close (tcp_connection_t * tc); void tcp_connection_cleanup (tcp_connection_t * tc); void tcp_connection_del (tcp_connection_t * tc); @@ -414,6 +461,8 @@ u8 *format_tcp_connection_id (u8 * s, va_list * args); u8 *format_tcp_connection (u8 * s, va_list * args); u8 *format_tcp_scoreboard (u8 * s, va_list * args); +u8 *tcp_scoreboard_replay (u8 * s, tcp_connection_t * tc, u8 verbose); + always_inline tcp_connection_t * tcp_listener_get (u32 tli) { @@ -689,7 +738,7 @@ sack_scoreboard_hole_t *scoreboard_next_rxt_hole (sack_scoreboard_t * sb, start, u8 have_sent_1_smss, u8 * can_rescue, u8 * snd_limited); -void scoreboard_init_high_rxt (sack_scoreboard_t * sb); +void scoreboard_init_high_rxt (sack_scoreboard_t * sb, u32 seq); always_inline sack_scoreboard_hole_t * scoreboard_get_hole (sack_scoreboard_t * sb, u32 index) @@ -740,6 +789,7 @@ scoreboard_clear (sack_scoreboard_t * sb) scoreboard_remove_hole (sb, hole); } ASSERT (sb->head == sb->tail && sb->head == TCP_INVALID_SACK_HOLE_INDEX); + ASSERT (pool_elts (sb->holes) == 0); sb->sacked_bytes = 0; sb->last_sacked_bytes = 0; sb->last_bytes_delivered = 0; @@ -759,6 +809,7 @@ scoreboard_hole_bytes (sack_scoreboard_hole_t * hole) always_inline u32 scoreboard_hole_index (sack_scoreboard_t * sb, sack_scoreboard_hole_t * hole) { + ASSERT (!pool_is_free_index (sb->holes, hole - sb->holes)); return hole - sb->holes; } |