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SubjectRe: [RFC net-next v2 5/5] net: phy: nxp-c45-tja11xx: implement mdo_insert_tx_tag
2023-09-01, 14:58:12 +0300, Radu Pirea (OSS) wrote:
> On 01.09.2023 13:07, Sabrina Dubroca wrote:
> > > (the interface was up before)
> > > [root@alarm ~]# ip link add link end0 macsec0 type macsec encrypt on
> > > offload phy
> > > [root@alarm ~]# ip link set end0 down
> > > [root@alarm ~]# ip macsec add macsec0 rx port 1 address
> > > 00:01:be:be:ef:33
> > > RTNETLINK answers: Operation not supported
> >
> > Where does that EOPNOTSUPP come from? nxp_c45_mdo_add_rxsc from this
> > version of the code can't return that, and macsec_add_rxsc also
> > shouldn't at this point.
>
> This is the source of -EOPNOTSUPP
> https://elixir.bootlin.com/linux/latest/source/drivers/net/macsec.c#L1928

Could you check which part of macsec_get_ops is failing? Since
macsec_newlink with "offload phy" worked, macsec_check_offload
shouldn't fail, so why does macsec_get_ops return NULL?
real_dev->phydev was NULL'ed?

--
Sabrina

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