netdev - [PATCH net-next 00/13] mlxsw: Unified bridge conversion

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Date:   Thu, 30 Jun 2022 11:22:44 +0300
From:   Ido Schimmel <idosch@...dia.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, petrm@...dia.com, amcohen@...dia.com,
        mlxsw@...dia.com, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 00/13] mlxsw: Unified bridge conversion - part 6/6

This is the sixth and final part of the conversion of mlxsw to the
unified bridge model. It transitions the last bits of functionality that
were under firmware's responsibility in the legacy model to the driver.
The last patches flip the driver to the unified bridge model and clean
up code that was used to make the conversion easier to review.

Patchset overview:

Patch #1 sets the egress VID for known unicast packets. For multicast
packets, the egress VID is configured using the MPE table. See commit
8c2da081c8b8 ("mlxsw: spectrum_fid: Configure egress VID classification
for multicast").

Patch #2 configures the VNI to FID classification that is used during
decapsulation.

Patch #3 configures ingress router interface (RIF) in FID classification
records, so that when a packet reaches the router block, its ingress RIF
is known. Care is taken to configure this in all the different flows
(e.g., RIF set on a FID, {Port, VID} joins a FID that already has a RIF
etc.).

Patch #4 configures the egress VID for routed packets. For such packets,
the egress VID is not set by the MPE table or by an FDB record at the
egress bridge, but instead by a dedicated table that maps {Egress RIF,
Egress port} to a VID.

Patch #5 removes VID configuration from RIF creation as in the unified
bridge model firmware no longer needs it.

Patch #6 sets the egress FID to use in RIF configuration so that the
device knows using which FID to bridge the packet after routing.

Patches #7-#9 add a new 802.1Q family and associated VLAN RIFs. In the
unified bridge model, we no longer need to emulate 802.1Q FIDs using
802.1D FIDs as VNI can be associated with both.

Patches #10-#11 finally flip the driver to the unified bridge model.

Patches #12-#13 clean up code that was used to make the conversion
easier to review.

Amit Cohen (13):
  mlxsw: Configure egress VID for unicast FDB entries
  mlxsw: spectrum_fid: Configure VNI to FID classification
  mlxsw: Configure ingress RIF classification
  mlxsw: spectrum_fid: Configure layer 3 egress VID classification
  mlxsw: spectrum_router: Do not configure VID for sub-port RIFs
  mlxsw: Configure egress FID classification after routing
  mlxsw: Add support for VLAN RIFs
  mlxsw: Add new FID families for unified bridge model
  mlxsw: Add support for 802.1Q FID family
  mlxsw: Add ubridge to config profile
  mlxsw: Enable unified bridge model
  mlxsw: spectrum_fid: Remove flood_index() from FID operation structure
  mlxsw: spectrum_fid: Remove '_ub_' indication from structures and
    defines

 drivers/net/ethernet/mellanox/mlxsw/cmd.h     |  13 +
 drivers/net/ethernet/mellanox/mlxsw/core.h    |   2 +
 drivers/net/ethernet/mellanox/mlxsw/pci.c     |   5 +
 drivers/net/ethernet/mellanox/mlxsw/reg.h     |  30 +-
 .../net/ethernet/mellanox/mlxsw/spectrum.c    |  29 +-
 .../net/ethernet/mellanox/mlxsw/spectrum.h    |   8 +-
 .../ethernet/mellanox/mlxsw/spectrum_fid.c    | 780 ++++++++++++++----
 .../ethernet/mellanox/mlxsw/spectrum_pgt.c    |  21 +-
 .../ethernet/mellanox/mlxsw/spectrum_router.c | 147 +++-
 .../ethernet/mellanox/mlxsw/spectrum_router.h |   1 -
 .../mellanox/mlxsw/spectrum_switchdev.c       |  24 +-
 11 files changed, 827 insertions(+), 233 deletions(-)

-- 
2.36.1