netdev - [PATCH net-next 00/18] mlxsw: spectrum_router: Add GRE tunnel support for Spectrum-2

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Message-ID: <20190120065007.21352-1-idosch@mellanox.com>
Date:   Sun, 20 Jan 2019 06:50:38 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>, Nir Dotan <nird@...lanox.com>,
        mlxsw <mlxsw@...lanox.com>, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 00/18] mlxsw: spectrum_router: Add GRE tunnel support
 for Spectrum-2

Nir says:

In Spectrum-2, HW implementation of layer 3 tunnels differs from
Spectrum-1 when it comes to the underlay routing table selection.
Spectrum-2 uses a dedicated RIF that points to the virtual router used
for forwarding the encapsulated packets, while Spectrum-1 explicitly
specifies the virtual router itself.

Patches #1 and #2 add additional fields in RITR - Router interface table
register and RTDP - Routing tunnel decap properties respectively, the
fields are required for the new underlay RIF needed for Spectrum-2.

Patches #3-4 allow different set of RIF operations per ASIC type. The
first patch splits the operations and the following patch sets RIF ops
according to ASIC type.

Patches #5-9 introduce small changes to existing code to allow existence
of a dedicated underlay RIF along with the underlay virtual router, and
to support that new type of RIF that has no device.

Patch #10 takes care of updating the tunnel decap properties egress
underlay RIF required for Spectrum-2.

Patch #11 adds the implementation of Spectrum-2 specific RIF operations
and essentially enables layer 3 GRE tunnels on Spectrum-2.

Finally patches #12-18 add tests for GRE IP-in-IP tunnels, both in flat
and hierarchical topologies.

Ido Schimmel (1):
  mlxsw: reg: Add underlay egress RIF field in RTDP register

Nir Dotan (17):
  mlxsw: reg: Add fields to RITR - Router Interface Table Register
  mlxsw: spectrum_router: Split RIF ops array for Spectrum-2 support
  mlxsw: spectrum: Set RIF ops per ASIC type
  mlxsw: spectrum_router: Adjust loopback RIF configuration
  mlxsw: spectrum_router: Mark RIF index as taken before creation
  mlxsw: spectrum_router: Add underlay RIF ID support
  mlxsw: spectrum_router: Change mlxsw_sp_ipip_lb_ul_vr_id()
  mlxsw: spectrum_router: Support RIF without device
  mlxsw: spectrum_router: Update tunnel decap properties
  mlxsw: spectrum_router: Add GRE tunnel support for Spectrum-2
  selftests: forwarding: Add IP tunneling lib
  selftests: forwarding: Add IP-in-IP GRE flat topology test
  selftests: forwarding: Add IP-in-IP GRE flat topology with key test
  selftests: forwarding: Add IP-in-IP GRE flat topology with keys test
  selftests: forwarding: Add IP-in-IP GRE hierarchical topology test
  selftests: forwarding: Add IP-in-IP GRE hierarchical topology with key
    test
  selftests: forwarding: Add IP-in-IP GRE hierarchical topology with
    keys test

 drivers/net/ethernet/mellanox/mlxsw/reg.h     |  23 +-
 .../net/ethernet/mellanox/mlxsw/spectrum.c    |   2 +
 .../net/ethernet/mellanox/mlxsw/spectrum.h    |   6 +
 .../ethernet/mellanox/mlxsw/spectrum_dpipe.c  |   2 +-
 .../ethernet/mellanox/mlxsw/spectrum_ipip.c   |   2 +
 .../ethernet/mellanox/mlxsw/spectrum_router.c | 221 +++++++++--
 .../ethernet/mellanox/mlxsw/spectrum_router.h |   1 +
 .../selftests/net/forwarding/ipip_flat_gre.sh |  63 ++++
 .../net/forwarding/ipip_flat_gre_key.sh       |  63 ++++
 .../net/forwarding/ipip_flat_gre_keys.sh      |  63 ++++
 .../selftests/net/forwarding/ipip_hier_gre.sh |  63 ++++
 .../net/forwarding/ipip_hier_gre_key.sh       |  63 ++++
 .../net/forwarding/ipip_hier_gre_keys.sh      |  63 ++++
 .../selftests/net/forwarding/ipip_lib.sh      | 349 ++++++++++++++++++
 14 files changed, 954 insertions(+), 30 deletions(-)
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_flat_gre.sh
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_hier_gre.sh
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh
 create mode 100755 tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh
 create mode 100644 tools/testing/selftests/net/forwarding/ipip_lib.sh

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2.20.1