[PATCH v3] net/iavf: fix VLAN offload strip flag

[Amiya Ranjan Mohakud]

Sure Ciara. Thanks.

I will raise a fresh new patch for bug Id: 1735. That would be better.

Thanks
Amiya


On Thu, 3 Jul 2025 at 13:48, Loftus, Ciara <ciara.loftus at intel.com> wrote:

> > Subject: [PATCH v3] net/iavf: fix VLAN offload strip flag
> >
> > For i40e kernel drivers which support either vlan(v1) or vlan(v2)
> > VIRTCHNL OP,it will set strip on when setting filter on. But dpdk
> > side will not change strip flag. To be consistent with dpdk side,
> > explicitly disable strip again.
> >
> > Bugzilla ID:1725
> > Cc: stable at dpdk.org
> >
> > v3:
> > - Fixed the vlan(v2) scenario by calling appropriate api
> > - Addresses Bugzilla ID: 1735
> > v2:
> > - Fixed indentation in commit message
> >
> > Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud at gmail.com>
>
> Hi Amiya,
>
> Thanks for the patch.
> Since your first patch was already merged into the main branch, this patch
> is considered a new patch (v1).
> If you submit another revision, it should be labelled v2.
>
> Since it's a new patch, it needs a new commit message. Something like:
>
> net/iavf: fix VLAN strip disabling for v2 capability
>
> Ensure the correct virtchnl op is called for disabling vlan stripping by
> checking if the device supports either v1 or v2 vlan capability and
> choosing the op accordingly.
>
> You should include the below line in the commit message which indicates it
> is a fix for the first patch:
> Fixes: 3bfad066f9b4 ("net/iavf: fix VLAN strip setting after enabling
> filter")
>
> Thanks,
> Ciara
>
> > ---
> >  drivers/net/intel/iavf/iavf_ethdev.c | 6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/intel/iavf/iavf_ethdev.c
> > b/drivers/net/intel/iavf/iavf_ethdev.c
> > index c33fdd9069..335a8126c4 100644
> > --- a/drivers/net/intel/iavf/iavf_ethdev.c
> > +++ b/drivers/net/intel/iavf/iavf_ethdev.c
> > @@ -1388,6 +1388,7 @@ iavf_disable_vlan_strip_ex(struct rte_eth_dev
> > *dev, int on)
> >        */
> >       struct iavf_adapter *adapter =
> >               IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
> > +     struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter);
> >       struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
> >       int err;
> >
> > @@ -1395,7 +1396,10 @@ iavf_disable_vlan_strip_ex(struct rte_eth_dev
> > *dev, int on)
> >           adapter->hw.mac.type == IAVF_MAC_VF ||
> >           adapter->hw.mac.type == IAVF_MAC_X722_VF) {
> >               if (on && !(dev_conf->rxmode.offloads &
> > RTE_ETH_RX_OFFLOAD_VLAN_STRIP)) {
> > -                     err = iavf_disable_vlan_strip(adapter);
> > +                     if (vf->vf_res->vf_cap_flags &
> > VIRTCHNL_VF_OFFLOAD_VLAN_V2)
> > +                             err = iavf_config_vlan_strip_v2(adapter,
> false);
> > +                     else
> > +                             err = iavf_disable_vlan_strip(adapter);
> >                       if (err)
> >                               return -EIO;
> >               }
> > --
> > 2.39.5 (Apple Git-154)
>
>
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