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| author | Mubashir Adnan Qureshi <mubashirq@google.com> | 2022-10-26 16:51:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-10-28 12:47:42 +0300 |
| commit | 29c1c44646aec5d5134f2365259a84becc1ee7d3 (patch) | |
| tree | eb2cc7ced4d5711d1a6c36441585198172ea8957 /mm | |
| parent | c30f8e0b048087ffbf20e51a4be160f7ec279ff6 (diff) | |
| download | linux-29c1c44646aec5d5134f2365259a84becc1ee7d3.tar.xz | |
tcp: add u32 counter in tcp_sock and an SNMP counter for PLB
A u32 counter is added to tcp_sock for counting the number of PLB
triggered rehashes for a TCP connection. An SNMP counter is also
added to count overall PLB triggered rehash events for a host. These
counters are hooked up to PLB implementation for DCTCP.
TCP_NLA_REHASH is added to SCM_TIMESTAMPING_OPT_STATS that reports
the rehash attempts triggered due to PLB or timeouts. This gives
a historical view of sustained congestion or timeouts experienced
by the TCP connection.
Signed-off-by: Mubashir Adnan Qureshi <mubashirq@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions