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Message-ID: <PH0PR11MB5013958C9390750E1F98A92A961C2@PH0PR11MB5013.namprd11.prod.outlook.com>
Date: Mon, 6 May 2024 09:33:05 +0000
From: "Buvaneswaran, Sujai" <sujai.buvaneswaran@...el.com>
To: Asbjørn Sloth Tønnesen <ast@...erby.net>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Eric Dumazet
	<edumazet@...gle.com>, "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "David S.
 Miller" <davem@...emloft.net>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next] iavf: flower: validate control
 flags

Hi Asbjørn,

I have tried the above steps as well and still issue is seen while enabling HW offload on iavf interface.

[root@...-mariner ~]# ethtool -K ens5f0v0 hw-tc-offload on
Actual changes:
hw-tc-offload: off [requested on]
Could not change any device features
[root@...-mariner ~]# tc qdisc add dev ens5f0v0 ingress
[root@...-mariner ~]# tc filter add dev ens5f0v0 protocol ip parent ffff: prio 1 flower dst_mac 3c:fd:fe:a0:d6:70 ip_flags frag skip_sw hw_tc 1
Error: TC offload is disabled on net device.
We have an error talking to the kernel

Thanks,
Sujai B

> -----Original Message-----
> From: Asbjørn Sloth Tønnesen <ast@...erby.net>
> Sent: Monday, May 6, 2024 2:50 PM
> To: Buvaneswaran, Sujai <sujai.buvaneswaran@...el.com>; intel-wired-
> lan@...ts.osuosl.org
> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org; Eric Dumazet
> <edumazet@...gle.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Jakub Kicinski <kuba@...nel.org>; Paolo
> Abeni <pabeni@...hat.com>; David S. Miller <davem@...emloft.net>
> Subject: Re: [Intel-wired-lan] [PATCH iwl-next] iavf: flower: validate control
> flags
> 
> Hi Sujai,
> 
> Thank you for testing.
> 
> On 5/6/24 5:30 AM, Buvaneswaran, Sujai wrote:
> > HW offload is not directly supported on the iavf VF interface. VF traffic can
> be offloaded only through VF port representor device which uses ice driver.
> 
> Again, there is a awful lot of flower code in iavf_main.c, if it's not supported.
> 
> Try with:
> ethtool -K $iface hw-tc-offload on
> tc qdisc add dev $iface ingress
> tc filter add dev $iface protocol ip parent ffff: prio 1 flower dst_mac
> 3c:fd:fe:a0:d6:70 ip_flags frag skip_sw hw_tc 1
> 
> --
> Best regards
> Asbjørn Sloth Tønnesen
> Network Engineer
> Fiberby - AS42541

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