aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/tcp/tcp.h
diff options
context:
space:
mode:
authorFlorin Coras <fcoras@cisco.com>2018-11-05 11:06:53 -0800
committerMarco Varlese <marco.varlese@suse.de>2018-11-06 08:10:22 +0000
commit9ece3c03133309dda1f7f7f292bd071fa1ccb0f1 (patch)
treed976d958c8ccba43506194c31ce65bd388902666 /src/vnet/tcp/tcp.h
parent87ee947d0b053b33571c5e33617b138236bada59 (diff)
tcp: dequeue acked only once per burst
Avoid dequeuing acked bytes more than once per burst for a connection. Although the fifos do not use locks, size decrements are atomic, so they rely on locked instructions. Change-Id: Id65f4ea40b2c10057461402dfd0393034e6472d5 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.h')
-rw-r--r--src/vnet/tcp/tcp.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index bd5e4f71bdb..480b924c882 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -122,6 +122,7 @@ extern timer_expiration_handler tcp_timer_retransmit_syn_handler;
_(FINPNDG, "FIN pending") \
_(FRXT_PENDING, "Fast-retransmit pending") \
_(FRXT_FIRST, "Fast-retransmit first again") \
+ _(DEQ_PENDING, "Pending dequeue acked") \
typedef enum _tcp_connection_flag_bits
{
@@ -308,6 +309,7 @@ typedef struct _tcp_connection
u32 prev_ssthresh; /**< ssthresh before congestion */
u32 prev_cwnd; /**< ssthresh before congestion */
u32 bytes_acked; /**< Bytes acknowledged by current segment */
+ u32 burst_acked; /**< Bytes acknowledged in current burst */
u32 snd_rxt_bytes; /**< Retransmitted bytes */
u32 snd_rxt_ts; /**< Timestamp when first packet is retransmitted */
u32 tsecr_last_ack; /**< Timestamp echoed to us in last healthy ACK */
@@ -392,6 +394,7 @@ typedef struct tcp_worker_ctx_
now doing fast rxt */
u32 *postponed_fast_rxt; /**< vector of connections
that will do fast rxt */
+ u32 *pending_deq_acked;
vlib_main_t *vm; /**< pointer to vm */
CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);