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| author | David S. Miller <davem@davemloft.net> | 2017-11-11 12:53:17 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-11 12:53:17 +0300 |
| commit | f31f54db94f086d69fa457f6e0d40783469a7512 (patch) | |
| tree | a95677bca04ad68e0c1a60fa343d59d24934e669 /include/linux | |
| parent | e4ec1384132ead18e972f1180e958aa0b69abd11 (diff) | |
| parent | 737ff314563ca27f044f9a3a041e9d42491ef7ce (diff) | |
| download | linux-f31f54db94f086d69fa457f6e0d40783469a7512.tar.xz | |
Merge branch 'FACK-loss-recovery-remove'
Yuchung Cheng says:
====================
remove FACK loss recovery
This patch set removes the forward-acknowledgment (FACK)
packet-based loss and reordering detection. This simplifies TCP
loss recovery since the SACK scoreboard no longer needs to track
the number of pending packets under highest SACKed sequence. FACK
is subsumed by the time-based RACK loss detection which is more
robust under reordering and second order losses.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/tcp.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 22f40c96a15b..df5d97a85e1a 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -85,7 +85,6 @@ struct tcp_sack_block { /*These are used to set the sack_ok field in struct tcp_options_received */ #define TCP_SACK_SEEN (1 << 0) /*1 = peer is SACK capable, */ -#define TCP_FACK_ENABLED (1 << 1) /*1 = FACK is enabled locally*/ #define TCP_DSACK_SEEN (1 << 2) /*1 = DSACK was received from peer*/ struct tcp_options_received { @@ -294,7 +293,6 @@ struct tcp_sock { u32 pushed_seq; /* Last pushed seq, required to talk to windows */ u32 lost_out; /* Lost packets */ u32 sacked_out; /* SACK'd packets */ - u32 fackets_out; /* FACK'd packets */ struct hrtimer pacing_timer; |