linux-kernel - [PATCH net-next v2 0/5] net: mvpp2: add debugfs interface

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Message-Id: <20180714112928.14246-1-maxime.chevallier@bootlin.com>
Date:   Sat, 14 Jul 2018 13:29:23 +0200
From:   Maxime Chevallier <maxime.chevallier@...tlin.com>
To:     davem@...emloft.net
Cc:     Maxime Chevallier <maxime.chevallier@...tlin.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        thomas.petazzoni@...tlin.com, gregory.clement@...tlin.com,
        miquel.raynal@...tlin.com, nadavh@...vell.com, stefanc@...vell.com,
        ymarkman@...vell.com, mw@...ihalf.com
Subject: [PATCH net-next v2 0/5] net: mvpp2: add debugfs interface

The PPv2 Header Parser and Classifier are not straightforward to debug,
having easy access to some of the many lookup tables configuration is
helpful during development and debug.

This series adds a basic debugfs interface, allowing to read data from
the Header Parser and some of the Classifier tables.

For now, the interface is read-only, and contains only some basic info.

This was actually used during RSS development, and might be useful to
troubleshoot some issues we might find.

The first patch of the series converts the mvpp2 files to SPDX, which
eases adding the new debugfs dedicated file.

The second patch adds the interface, and exposes basic Header Parser data.

The 3rd patch adds a hit counter for the Header Parser TCAM.

The 4th patch exposes classifier info.

The 5th patch adds some hit counters for some of the classifier engines.

Changes since V1:
- Rebased on the lastest net-next
- Made cls_flow_get non static so that it can be used in mvpp2_debugfs

Antoine Tenart (1):
  net: mvpp2: switch to SPDX identifiers

Maxime Chevallier (4):
  net: mvpp2: add a debugfs interface for the Header Parser
  net: mvpp2: debugfs: add hit counter stats for Header Parser entries
  net: mvpp2: debugfs: add entries for classifier flows
  net: mvpp2: debugfs: add classifier hit counters

 drivers/net/ethernet/marvell/mvpp2/Makefile        |   2 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h         |  23 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c     |  54 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h     |  26 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c | 703 +++++++++++++++++++++
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c    |   9 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c     |  33 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h     |  16 +-
 8 files changed, 830 insertions(+), 36 deletions(-)
 create mode 100644 drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c

-- 
2.11.0