diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.co.jp> | 2021-06-23 02:35:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-23 22:56:08 +0300 |
| commit | 55d444b310c64b084dcc62ba3e4dc3862269fb96 (patch) | |
| tree | 48678971ce4b31dbfaf01d105104bebf37f7d7e7 /include/uapi | |
| parent | 7525de2516fba8661bdea409718708c711c5d5e1 (diff) | |
| download | linux-55d444b310c64b084dcc62ba3e4dc3862269fb96.tar.xz | |
tcp: Add stats for socket migration.
This commit adds two stats for the socket migration feature to evaluate the
effectiveness: LINUX_MIB_TCPMIGRATEREQ(SUCCESS|FAILURE).
If the migration fails because of the own_req race in receiving ACK and
sending SYN+ACK paths, we do not increment the failure stat. Then another
CPU is responsible for the req.
Link: https://lore.kernel.org/bpf/CAK6E8=cgFKuGecTzSCSQ8z3YJ_163C0uwO9yRvfDSE7vOe9mJA@mail.gmail.com/
Suggested-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/snmp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index 26fc60ce9298..904909d020e2 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -290,6 +290,8 @@ enum LINUX_MIB_TCPDUPLICATEDATAREHASH, /* TCPDuplicateDataRehash */ LINUX_MIB_TCPDSACKRECVSEGS, /* TCPDSACKRecvSegs */ LINUX_MIB_TCPDSACKIGNOREDDUBIOUS, /* TCPDSACKIgnoredDubious */ + LINUX_MIB_TCPMIGRATEREQSUCCESS, /* TCPMigrateReqSuccess */ + LINUX_MIB_TCPMIGRATEREQFAILURE, /* TCPMigrateReqFailure */ __LINUX_MIB_MAX }; |