netdev - [PATCH net-next v3 0/4] add HSR offloading support for DSA switches

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Date:   Tue,  9 Feb 2021 19:02:09 -0600
From:   George McCollister <george.mccollister@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Jonathan Corbet <corbet@....net>, netdev@...r.kernel.org,
        George McCollister <george.mccollister@...il.com>
Subject: [PATCH net-next v3 0/4] add HSR offloading support for DSA switches

Add support for offloading HSR/PRP (IEC 62439-3) tag insertion, tag
removal, forwarding and duplication on DSA switches.
This series adds offloading to the xrs700x DSA driver.

Changes since RFC:
 * Split hsr and dsa patches. (Florian Fainelli)

Changes since v1:
 * Fixed some typos/wording. (Vladimir Oltean)
 * eliminate IFF_HSR and use is_hsr_master instead. (Vladimir Oltean)
 * Make hsr_handle_sup_frame handle skb_std as well (required when offloading)
 * Don't add hsr tag for HSR v0 supervisory frames.
 * Fixed tag insertion offloading for PRP.

Changes since v2:
 * Return -EOPNOTSUPP instead of 0 in dsa_switch_hsr_join and
   dsa_switch_hsr_leave. (Vladimir Oltean)
 * Only allow ports 1 and 2 to be HSR/PRP redundant ports. (Tobias Waldekranz)
 * Set and remove HSR features for both redundant ports. (Vladimir Oltean)
 * Change port_hsr_leave() to return int instead of void.
 * Remove hsr_init_skb() proto argument. (Vladimir Oltean)

George McCollister (4):
  net: hsr: generate supervision frame without HSR/PRP tag
  net: hsr: add offloading support
  net: dsa: add support for offloading HSR
  net: dsa: xrs700x: add HSR offloading support

 Documentation/networking/netdev-features.rst |  21 +++++
 drivers/net/dsa/xrs700x/xrs700x.c            | 121 +++++++++++++++++++++++++++
 drivers/net/dsa/xrs700x/xrs700x_reg.h        |   5 ++
 include/linux/if_hsr.h                       |  27 ++++++
 include/linux/netdev_features.h              |   9 ++
 include/net/dsa.h                            |  13 +++
 net/dsa/dsa_priv.h                           |  11 +++
 net/dsa/port.c                               |  34 ++++++++
 net/dsa/slave.c                              |  14 ++++
 net/dsa/switch.c                             |  24 ++++++
 net/dsa/tag_xrs700x.c                        |   7 +-
 net/ethtool/common.c                         |   4 +
 net/hsr/hsr_device.c                         |  53 +++---------
 net/hsr/hsr_device.h                         |   1 -
 net/hsr/hsr_forward.c                        |  35 +++++++-
 net/hsr/hsr_forward.h                        |   1 +
 net/hsr/hsr_framereg.c                       |   2 +
 net/hsr/hsr_main.c                           |  11 +++
 net/hsr/hsr_main.h                           |   8 +-
 net/hsr/hsr_slave.c                          |  10 ++-
 20 files changed, 351 insertions(+), 60 deletions(-)
 create mode 100644 include/linux/if_hsr.h

-- 
2.11.0