linux-kernel - RE: [Intel-wired-lan] [PATCH net v2] i40e: Fix I40E_FLAG_VF_VLAN

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Message-ID: <BL0PR11MB31226A0095D6A906D12C6C31BDDBA@BL0PR11MB3122.namprd11.prod.outlook.com>
Date:   Fri, 20 Oct 2023 05:44:11 +0000
From:   "Pucha, HimasekharX Reddy" <himasekharx.reddy.pucha@...el.com>
To:     ivecera <ivecera@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Przemyslaw Patynowski <przemyslawx.patynowski@...el.com>,
        "Palczewski, Mateusz" <mateusz.palczewski@...el.com>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        open list <linux-kernel@...r.kernel.org>,
        "Eric Dumazet" <edumazet@...gle.com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        Simon Horman <horms@...nel.org>,
        "Sylwester Dziedziuch" <sylwesterx.dziedziuch@...el.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        "moderated list:INTEL ETHERNET DRIVERS" 
        <intel-wired-lan@...ts.osuosl.org>
Subject: RE: [Intel-wired-lan] [PATCH net v2] i40e: Fix
 I40E_FLAG_VF_VLAN_PRUNING value

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Ivan Vecera
> Sent: Thursday, October 19, 2023 10:07 PM
> To: netdev@...r.kernel.org
> Cc: Przemyslaw Patynowski <przemyslawx.patynowski@...el.com>; Palczewski, Mateusz <mateusz.palczewski@...el.com>; Brandeburg, Jesse <jesse.brandeburg@...el.com>; open list <linux-kernel@...r.kernel.org>; Eric Dumazet <edumazet@...gle.com>; Nguyen, Anthony L <anthony.l.nguyen@...el.com>; Simon Horman <horms@...nel.org>; Sylwester Dziedziuch <sylwesterx.dziedziuch@...el.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; David S. Miller <davem@...emloft.net>; moderated list:INTEL ETHERNET DRIVERS <intel-wired-lan@...ts.osuosl.org>
> Subject: [Intel-wired-lan] [PATCH net v2] i40e: Fix I40E_FLAG_VF_VLAN_PRUNING value
>
> Commit c87c938f62d8f1 ("i40e: Add VF VLAN pruning") added new
> PF flag I40E_FLAG_VF_VLAN_PRUNING but its value collides with
> existing I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED flag.
>
> Move the affected flag at the end of the flags and fix its value.
>
> Reproducer:
> [root@...-03 ~]# ethtool --set-priv-flags enp2s0f0np0 link-down-on-close on
> [root@...-03 ~]# ethtool --set-priv-flags enp2s0f0np0 vf-vlan-pruning on
> [root@...-03 ~]# ethtool --set-priv-flags enp2s0f0np0 link-down-on-close off
> [ 6323.142585] i40e 0000:02:00.0: Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)
> netlink error: Operation not supported
> [root@...-03 ~]# ethtool --set-priv-flags enp2s0f0np0 vf-vlan-pruning off
> [root@...-03 ~]# ethtool --set-priv-flags enp2s0f0np0 link-down-on-close off
>
> The link-down-on-close flag cannot be modified after setting vf-vlan-pruning
> because vf-vlan-pruning shares the same bit with total-port-shutdown flag
> that prevents any modification of link-down-on-close flag.
>
> Fixes: c87c938f62d8 ("i40e: Add VF VLAN pruning")
> Cc: Mateusz Palczewski <mateusz.palczewski@...el.com>
> Cc: Simon Horman <horms@...nel.org>
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>

Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)