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| author |  Menglong Dong <imagedong@tencent.com>
| 2022-02-20 15:06:36 +0800 |
|---|---|---|
| committer |  David S. Miller <davem@davemloft.net>
| 2022-02-20 13:55:31 +0000 |
| commit | a7ec381049c0d1f03e342063d75f5c3b314d0ec2 (patch) | |
| tree | 3da55283aa998066521ac9367364d162a49d7cdd /include/linux/skbuff.h | |
| parent | net: tcp: use tcp_drop_reason() for tcp_rcv_established() (diff) | |
| download | linux-a7ec381049c0d1f03e342063d75f5c3b314d0ec2.tar.gz linux-a7ec381049c0d1f03e342063d75f5c3b314d0ec2.tar.bz2 linux-a7ec381049c0d1f03e342063d75f5c3b314d0ec2.zip | |
net: tcp: use tcp_drop_reason() for tcp_data_queue()
Replace tcp_drop() used in tcp_data_queue() with tcp_drop_reason().
Following drop reasons are introduced:
SKB_DROP_REASON_TCP_ZEROWINDOW
SKB_DROP_REASON_TCP_OLD_DATA
SKB_DROP_REASON_TCP_OVERWINDOW
SKB_DROP_REASON_TCP_OLD_DATA is used for the case that end_seq of skb
less than the left edges of receive window. (Maybe there is a better
name?)
Reviewed-by: Mengen Sun <mengensun@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 671db9f49efe..554ef2c848ee 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -363,6 +363,19 @@ enum skb_drop_reason { * LINUX_MIB_TCPBACKLOGDROP) */ SKB_DROP_REASON_TCP_FLAGS, /* TCP flags invalid */ + SKB_DROP_REASON_TCP_ZEROWINDOW, /* TCP receive window size is zero, + * see LINUX_MIB_TCPZEROWINDOWDROP + */ + SKB_DROP_REASON_TCP_OLD_DATA, /* the TCP data reveived is already + * received before (spurious retrans + * may happened), see + * LINUX_MIB_DELAYEDACKLOST + */ + SKB_DROP_REASON_TCP_OVERWINDOW, /* the TCP data is out of window, + * the seq of the first byte exceed + * the right edges of receive + * window + */ SKB_DROP_REASON_MAX, }; |