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From:   Alexander Lobakin <aleksander.lobakin@intel.com>
To:     "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>
Cc:     Alexander Lobakin <aleksander.lobakin@intel.com>,
        Michal Kubiak <michal.kubiak@intel.com>,
        Przemek Kitszel <przemyslaw.kitszel@intel.com>,
        Vladimir Oltean <vladimir.oltean@nxp.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Michal Kubecek <mkubecek@suse.cz>,
        Jiri Pirko <jiri@resnulli.us>,
        Paul Greenwalt <paul.greenwalt@intel.com>,
        Tony Nguyen <anthony.l.nguyen@intel.com>,
        intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH net-next 0/2] idpf: add get/set for Ethtool's header split ringparam
Date:   Tue, 12 Dec 2023 15:27:50 +0100
Message-ID: <20231212142752.935000-1-aleksander.lobakin@intel.com>
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Currently, the header split feature (putting headers in one smaller
buffer and then the data in a separate bigger one) is always enabled
in idpf when supported.
One may want to not have fragmented frames per each packet, for example,
to avoid XDP frags. To better optimize setups for particular workloads,
add ability to switch the header split state on and off via Ethtool's
ringparams, as well as to query the current status.
There's currently only GET in the Ethtool Netlink interface for now,
so add SET first. I suspect idpf is not the only one supporting this.

Alexander Lobakin (1):
  ethtool: add SET for TCP_DATA_SPLIT ringparam

Michal Kubiak (1):
  idpf: add get/set for Ethtool's header split ringparam

 drivers/net/ethernet/intel/idpf/idpf.h        |  7 +-
 .../net/ethernet/intel/idpf/idpf_ethtool.c    | 11 ++++
 drivers/net/ethernet/intel/idpf/idpf_lib.c    | 65 +++++++++++++++++++
 drivers/net/ethernet/intel/idpf/idpf_txrx.c   | 12 ++--
 .../net/ethernet/intel/idpf/idpf_virtchnl.c   |  2 +
 include/linux/ethtool.h                       |  2 +
 net/ethtool/rings.c                           | 12 ++++
 7 files changed, 104 insertions(+), 7 deletions(-)

-- 
2.43.0