linux-kernel - Re: [PATCH net] net: mvpp2: cls: Add missing NETIF_F

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Date:   Tue, 7 May 2019 10:28:03 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        thomas.petazzoni@...tlin.com, gregory.clement@...tlin.com,
        miquel.raynal@...tlin.com, nadavh@...vell.com, stefanc@...vell.com,
        mw@...ihalf.com, Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net] net: mvpp2: cls: Add missing NETIF_F_NTUPLE flag

On Tue,  7 May 2019 14:36:35 +0200, Maxime Chevallier wrote:
> Now that the mvpp2 driver supports classification offloading, we must
> add the NETIF_F_NTUPLE to the features list.
> 
> Fixes: 90b509b39ac9 ("net: mvpp2: cls: Add Classification offload support")
> Reported-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
> ---
> Hello David,
> 
> This patch applies on top of a commit 90b509b39ac9, which is in net-next
> but hasn't made it to -net yet.
> 
> Thanks,
> 
> Maxime
> 
>  drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> index 25fbed2b8d94..1f164c893936 100644
> --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> @@ -5040,8 +5040,10 @@ static int mvpp2_port_probe(struct platform_device *pdev,
>  	dev->hw_features |= features | NETIF_F_RXCSUM | NETIF_F_GRO |
>  			    NETIF_F_HW_VLAN_CTAG_FILTER;
>  
> -	if (mvpp22_rss_is_supported())
> +	if (mvpp22_rss_is_supported()) {
>  		dev->hw_features |= NETIF_F_RXHASH;
> +		dev->features |= NETIF_F_NTUPLE;

Hm, why not in hw_features?

> +	}
>  
>  	if (port->pool_long->id == MVPP2_BM_JUMBO && port->id != 0) {
>  		dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);