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* [PATCH net-next v2 0/9] ethtool: add uAPI for reading standard stats
@ 2021-04-16 19:27 Jakub Kicinski
  2021-04-16 19:27 ` [PATCH net-next v2 1/9] docs: networking: extend the statistics documentation Jakub Kicinski
                   ` (8 more replies)
  0 siblings, 9 replies; 23+ messages in thread
From: Jakub Kicinski @ 2021-04-16 19:27 UTC (permalink / raw)
  To: netdev
  Cc: davem, andrew, mkubecek, idosch, saeedm, michael.chan, Jakub Kicinski

Continuing the effort of providing a unified access method
to standard stats, and explicitly tying the definitions to
the standards this series adds an API for general stats
which do no fit into more targeted control APIs.

There is nothing clever here, just a netlink API for dumping
statistics defined by standards and RFCs which today end up
in ethtool -S under infinite variations of names.

This series adds basic IEEE stats (for PHY, MAC, Ctrl frames)
and RMON stats. AFAICT other RFCs only duplicate the IEEE
stats.

This series does _not_ add a netlink API to read driver-defined
stats. There seems to be little to gain from moving that part
to netlink.

The netlink message format is very simple, and aims to allow
adding stats and groups with no changes to user tooling (which
IIUC is expected for ethtool).

On user space side we can re-use -S, and make it dump
standard stats if --groups are defined.

$ ethtool -S eth0 --groups eth-phy eth-mac eth-ctrl rmon
Stats for eth0:
eth-phy-SymbolErrorDuringCarrier: 0
eth-mac-FramesTransmittedOK: 0
eth-mac-FrameTooLongErrors: 0
eth-ctrl-MACControlFramesTransmitted: 0
eth-ctrl-MACControlFramesReceived: 1
eth-ctrl-UnsupportedOpcodesReceived: 0
rmon-etherStatsUndersizePkts: 0
rmon-etherStatsJabbers: 0
rmon-rx-etherStatsPkts64Octets: 1
rmon-rx-etherStatsPkts128to255Octets: 0
rmon-rx-etherStatsPkts1024toMaxOctets: 1
rmon-tx-etherStatsPkts64Octets: 1
rmon-tx-etherStatsPkts128to255Octets: 0
rmon-tx-etherStatsPkts1024toMaxOctets: 1

v1:

Driver support for mlxsw, mlx5 and bnxt included.

Compared to the RFC I went ahead with wrapping the stats into
a 1:1 nest. Now IDs of stats can start from 0, at a cost of
slightly "careful" u64 alignment handling.

v2:

Add missing kdoc in patch 5.

Jakub Kicinski (9):
  docs: networking: extend the statistics documentation
  docs: ethtool: document standard statistics
  ethtool: add a new command for reading standard stats
  ethtool: add interface to read standard MAC stats
  ethtool: add interface to read standard MAC Ctrl stats
  ethtool: add interface to read RMON stats
  mlxsw: implement ethtool standard stats
  bnxt: implement ethtool standard stats
  mlx5: implement ethtool standard stats

 Documentation/networking/ethtool-netlink.rst  |  82 ++++
 Documentation/networking/statistics.rst       |  44 +-
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 125 ++++++
 .../ethernet/mellanox/mlx5/core/en_ethtool.c  |  37 ++
 .../ethernet/mellanox/mlx5/core/en_stats.c    | 142 +++++-
 .../ethernet/mellanox/mlx5/core/en_stats.h    |  10 +
 .../mellanox/mlxsw/spectrum_ethtool.c         | 129 ++++++
 include/linux/ethtool.h                       |  96 ++++
 include/uapi/linux/ethtool.h                  |  10 +
 include/uapi/linux/ethtool_netlink.h          | 137 ++++++
 net/ethtool/Makefile                          |   2 +-
 net/ethtool/netlink.c                         |  10 +
 net/ethtool/netlink.h                         |   8 +
 net/ethtool/stats.c                           | 410 ++++++++++++++++++
 net/ethtool/strset.c                          |  25 ++
 15 files changed, 1257 insertions(+), 10 deletions(-)
 create mode 100644 net/ethtool/stats.c

-- 
2.30.2


^ permalink raw reply	[flat|nested] 23+ messages in thread

end of thread, other threads:[~2021-04-19 19:20 UTC | newest]

Thread overview: 23+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-16 19:27 [PATCH net-next v2 0/9] ethtool: add uAPI for reading standard stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 1/9] docs: networking: extend the statistics documentation Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 2/9] docs: ethtool: document standard statistics Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 3/9] ethtool: add a new command for reading standard stats Jakub Kicinski
2021-04-17 17:15   ` Ido Schimmel
2021-04-17 17:57     ` Jakub Kicinski
2021-04-17 18:13       ` Jakub Kicinski
2021-04-17 18:53         ` Ido Schimmel
2021-04-17 19:15           ` Jakub Kicinski
2021-04-17 19:18             ` Jakub Kicinski
2021-04-17 19:27               ` Ido Schimmel
2021-04-17 20:10               ` Michal Kubecek
2021-04-19 19:20                 ` Jakub Kicinski
2021-04-18  8:20   ` Ido Schimmel
2021-04-16 19:27 ` [PATCH net-next v2 4/9] ethtool: add interface to read standard MAC stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 5/9] ethtool: add interface to read standard MAC Ctrl stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 6/9] ethtool: add interface to read RMON stats Jakub Kicinski
2021-04-18  8:04   ` Ido Schimmel
2021-04-19 18:55     ` Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 7/9] mlxsw: implement ethtool standard stats Jakub Kicinski
2021-04-16 19:27 ` [PATCH net-next v2 8/9] bnxt: " Jakub Kicinski
2021-04-19  0:27   ` Michael Chan
2021-04-16 19:27 ` [PATCH net-next v2 9/9] mlx5: " Jakub Kicinski

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