linux-kernel - [PATCH net-next 0/4] net: dsa: add master interface

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Date:   Thu, 31 Aug 2017 14:37:42 -0400
From:   Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [PATCH net-next 0/4] net: dsa: add master interface

Currently the SoC network interface (called master) to which a switch
fabric hangs, has its dsa_ptr pointing to a dsa_switch_tree instance.

This is not quite correct, because this interface is physically wired to
one of the switch ports (called CPU port), and because in a switch
fabric with multiple CPU ports, several master interfaces will point to
several CPU ports of the same dsa_switch_tree.

This patchset adds a new dsa_master structure to represent the pipe
between the SoC master interface and its switch CPU port. This structure
will store specific data such as the master ethtool_ops copy and the
tagging protocol used to pass frames with the associated slave ports.
The dsa_ptr is changed to a dsa_master instance, and each DSA slave now
has a pointer to a master port.

This is a step forward better control over the CPU conduit and support
for multiple CPU ports.

Vivien Didelot (4):
  net: dsa: introduce dsa_master
  net: dsa: move master ethtool ops in dsa_master
  net: dsa: change dsa_ptr for a dsa_master
  net: dsa: assign a master to slave ports

 drivers/net/dsa/b53/b53_common.c |   4 +-
 drivers/net/dsa/bcm_sf2.c        |   8 +--
 drivers/net/dsa/mt7530.c         |   4 +-
 drivers/net/dsa/mv88e6060.c      |   2 +-
 drivers/net/dsa/qca8k.c          |   2 +-
 include/linux/netdevice.h        |   4 +-
 include/net/dsa.h                |  42 +++++------
 net/dsa/Makefile                 |   2 +-
 net/dsa/dsa.c                    |  34 +--------
 net/dsa/dsa2.c                   |  38 +++++-----
 net/dsa/dsa_priv.h               |  24 +++----
 net/dsa/legacy.c                 |  34 +++++----
 net/dsa/master.c                 | 149 +++++++++++++++++++++++++++++++++++++++
 net/dsa/slave.c                  | 117 +++++-------------------------
 net/dsa/tag_brcm.c               |   5 +-
 net/dsa/tag_dsa.c                |   3 +-
 net/dsa/tag_edsa.c               |   3 +-
 net/dsa/tag_ksz.c                |   5 +-
 net/dsa/tag_lan9303.c            |   6 +-
 net/dsa/tag_mtk.c                |  12 +---
 net/dsa/tag_qca.c                |  12 +---
 net/dsa/tag_trailer.c            |   5 +-
 22 files changed, 265 insertions(+), 250 deletions(-)
 create mode 100644 net/dsa/master.c

-- 
2.14.1