netdev - [PATCH net-next v2 0/7] ethtool: allow dumping policies to user space

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Message-Id: <20201005220739.2581920-1-kuba@kernel.org>
Date:   Mon,  5 Oct 2020 15:07:32 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kernel-team@...com,
        johannes@...solutions.net, jiri@...nulli.us, andrew@...n.ch,
        mkubecek@...e.cz, Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 0/7] ethtool: allow dumping policies to user space

Hi!

This series wires up ethtool policies to ops, so they can be
dumped to user space for feature discovery.

First patch wires up GET commands, and second patch wires up SETs.

The policy tables are trimmed to save space and LoC.

Next - take care of linking up nested policies for the header
(which is the policy what we actually care about). And once header
policy is linked make sure that attribute range validation for flags
is done by policy, not a conditions in the code. New type of policy
is needed to validate masks (patch 6).

Netlink as always staying a step ahead of all the other kernel
API interfaces :)

v2:
 - merge patches 1 & 2 -> 1
 - add patch 3 & 5
 - remove .max_attr from struct ethnl_request_ops

Jakub Kicinski (7):
  ethtool: wire up get policies to ops
  ethtool: wire up set policies to ops
  ethtool: trim policy tables
  ethtool: link up ethnl_header_policy as a nested policy
  netlink: create helpers for checking type is an int
  netlink: add mask validation
  ethtool: specify which header flags are supported per command

 include/net/netlink.h        |  27 +++++---
 include/uapi/linux/netlink.h |   2 +
 lib/nlattr.c                 |  36 ++++++++++
 net/ethtool/bitset.c         |  26 ++++----
 net/ethtool/cabletest.c      |  41 ++++--------
 net/ethtool/channels.c       |  35 ++--------
 net/ethtool/coalesce.c       |  45 ++-----------
 net/ethtool/debug.c          |  24 ++-----
 net/ethtool/eee.c            |  32 +++------
 net/ethtool/features.c       |  30 ++-------
 net/ethtool/linkinfo.c       |  30 ++-------
 net/ethtool/linkmodes.c      |  32 ++-------
 net/ethtool/linkstate.c      |  14 +---
 net/ethtool/netlink.c        | 124 +++++++++++++++++++++++++----------
 net/ethtool/netlink.h        |  35 ++++++++--
 net/ethtool/pause.c          |  27 ++------
 net/ethtool/privflags.c      |  24 ++-----
 net/ethtool/rings.c          |  35 ++--------
 net/ethtool/strset.c         |  25 +++----
 net/ethtool/tsinfo.c         |  13 +---
 net/ethtool/tunnels.c        |  42 ++++--------
 net/ethtool/wol.c            |  24 ++-----
 net/netlink/policy.c         |   8 +++
 23 files changed, 317 insertions(+), 414 deletions(-)

-- 
2.26.2