netdev - [PATCH net-next 0/8] nfp: offload LAG for tc flower egress

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Date:   Wed, 23 May 2018 19:22:47 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>
Subject: [PATCH net-next 0/8] nfp: offload LAG for tc flower egress

Hi!

This series from John adds bond offload to the nfp driver.  Patch 5
exposes the hash type for NETDEV_LAG_TX_TYPE_HASH to make sure nfp
hashing matches that of the software LAG.  This may be unnecessarily
conservative, let's see what LAG maintainers think :)

John says:

This patchset sets up the infrastructure and offloads output actions for
when a TC flower rule attempts to egress a packet to a LAG port.

Firstly it adds some of the infrastructure required to the flower app and
to the nfp core. This includes the ability to change the MAC address of a
repr, a function for combining lookup and write to a FW symbol, and the
addition of private data to a repr on a per app basis.

Patch 6 continues by implementing notifiers that track Linux bonds and
communicates to the FW those which enslave reprs, along with the current
state of reprs within the bond.

Patch 7 ensures bonds are synchronised with FW by receiving and acting
upon cmsgs sent to the kernel. These may request that a bond message is
retransmitted when FW can process it, or may request a full sync of the
bonds defined in the kernel.

Patch 8 offloads a flower action when that action requires egressing to a
pre-defined Linux bond.

John Hurley (8):
  nfp: add ndo_set_mac_address for representors
  nfp: nfpcore: add rtsym writing function
  nfp: flower: check for/turn on LAG support in firmware
  nfp: flower: add per repr private data for LAG offload
  net: include hash policy in LAG changeupper info
  nfp: flower: monitor and offload LAG groups
  nfp: flower: implement host cmsg handler for LAG
  nfp: flower: compute link aggregation action

 drivers/net/bonding/bond_main.c               |  27 +-
 drivers/net/ethernet/netronome/nfp/Makefile   |   1 +
 .../ethernet/netronome/nfp/flower/action.c    | 131 +++-
 .../net/ethernet/netronome/nfp/flower/cmsg.c  |  11 +-
 .../net/ethernet/netronome/nfp/flower/cmsg.h  |  14 +
 .../ethernet/netronome/nfp/flower/lag_conf.c  | 726 ++++++++++++++++++
 .../net/ethernet/netronome/nfp/flower/main.c  |  61 ++
 .../net/ethernet/netronome/nfp/flower/main.h  |  52 +-
 .../ethernet/netronome/nfp/flower/offload.c   |   2 +-
 .../net/ethernet/netronome/nfp/nfp_net_repr.c |   1 +
 .../ethernet/netronome/nfp/nfpcore/nfp_nffw.h |   2 +
 .../netronome/nfp/nfpcore/nfp_rtsym.c         |  43 ++
 drivers/net/team/team.c                       |   1 +
 include/linux/netdevice.h                     |  11 +
 14 files changed, 1053 insertions(+), 30 deletions(-)
 create mode 100644 drivers/net/ethernet/netronome/nfp/flower/lag_conf.c

--- 
CC: Jiri Pirko <jiri@...nulli.us>
CC: Jay Vosburgh <j.vosburgh@...il.com>
CC: Veaceslav Falico <vfalico@...il.com>
CC: Andy Gospodarek <andy@...yhouse.net>
--
2.17.0