netdev - [PATCH net-next 0/4][pull request] Support rx-fcs on/off for VFs

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Message-Id: <20230913180334.2116162-1-anthony.l.nguyen@intel.com>
Date: Wed, 13 Sep 2023 11:03:30 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>,
	ahmed.zaki@...el.com
Subject: [PATCH net-next 0/4][pull request] Support rx-fcs on/off for VFs

Ahmed Zaki says:

Allow the user to turn on/off the CRC/FCS stripping through ethtool. We
first add the CRC offload capability in the virtchannel, then the feature
is enabled in ice and iavf drivers.

We make sure that the netdev features are fixed such that CRC stripping
cannot be disabled if VLAN rx offload (VLAN strip) is enabled. Also, VLAN
stripping cannot be enabled unless CRC stripping is ON.

Testing was done using tcpdump to make sure that the CRC is included in
the frame after:

    # ethtool -K <interface> rx-fcs on

and is not included when it is back "off". Also, ethtool should return an
error for the above command if "rx-vlan-offload" is already on and at least
one VLAN interface/filter exists on the VF.

The following are changes since commit ca5ab9638e925613f73b575041801a7b2fd26bd4:
  Merge branch 'selftests-classid'
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue 40GbE

Haiyue Wang (2):
  ice: Support FCS/CRC strip disable for VF
  ice: Check CRC strip requirement for VLAN strip

Norbert Zulinski (1):
  iavf: Add ability to turn off CRC stripping for VF

Paul M Stillwell Jr (1):
  virtchnl: Add CRC stripping capability

 drivers/net/ethernet/intel/iavf/iavf.h        |  2 +
 drivers/net/ethernet/intel/iavf/iavf_main.c   | 59 +++++++++++++++-
 .../net/ethernet/intel/iavf/iavf_virtchnl.c   |  4 ++
 drivers/net/ethernet/intel/ice/ice_vf_lib.h   |  3 +
 drivers/net/ethernet/intel/ice/ice_virtchnl.c | 69 +++++++++++++++++--
 include/linux/avf/virtchnl.h                  | 11 ++-
 6 files changed, 141 insertions(+), 7 deletions(-)

-- 
2.38.1