netdev - Re: [PATCH net-next 2/4] net: ti: icssg-prueth: Add VLAN support in EMAC mode

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Message-ID: <Z2PE5m8R5lM4/YRT@mev-dev.igk.intel.com>
Date: Thu, 19 Dec 2024 08:02:10 +0100
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: MD Danish Anwar <danishanwar@...com>
Cc: aleksander.lobakin@...el.com, lukma@...x.de, m-malladi@...com,
	diogo.ivo@...mens.com, rdunlap@...radead.org,
	schnelle@...ux.ibm.com, vladimir.oltean@....com, horms@...nel.org,
	rogerq@...nel.org, pabeni@...hat.com, kuba@...nel.org,
	edumazet@...gle.com, davem@...emloft.net, andrew+netdev@...n.ch,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, srk@...com,
	Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH net-next 2/4] net: ti: icssg-prueth: Add VLAN support in
 EMAC mode

On Mon, Dec 16, 2024 at 03:30:42PM +0530, MD Danish Anwar wrote:
> Add support for vlan filtering in dual EMAC mode.
> 
> Signed-off-by: MD Danish Anwar <danishanwar@...com>
> ---
>  drivers/net/ethernet/ti/icssg/icssg_prueth.c | 29 +++++++++-----------
>  1 file changed, 13 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
> index c568c84a032b..e031bccf31dc 100644
> --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
> +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
> @@ -822,19 +822,18 @@ static int emac_ndo_vlan_rx_add_vid(struct net_device *ndev,
>  {
>  	struct prueth_emac *emac = netdev_priv(ndev);
>  	struct prueth *prueth = emac->prueth;
> +	int port_mask = BIT(emac->port_id);
>  	int untag_mask = 0;
> -	int port_mask;
>  
> -	if (prueth->is_hsr_offload_mode) {
> -		port_mask = BIT(PRUETH_PORT_HOST) | BIT(emac->port_id);
> -		untag_mask = 0;
> +	if (prueth->is_hsr_offload_mode)
> +		port_mask |= BIT(PRUETH_PORT_HOST);
>  
> -		netdev_dbg(emac->ndev, "VID add vid:%u port_mask:%X untag_mask %X\n",
> -			   vid, port_mask, untag_mask);
> +	netdev_err(emac->ndev, "VID add vid:%u port_mask:%X untag_mask %X\n",
> +		   vid, port_mask, untag_mask);
> +
> +	icssg_vtbl_modify(emac, vid, port_mask, untag_mask, true);
> +	icssg_set_pvid(emac->prueth, vid, emac->port_id);
>  
> -		icssg_vtbl_modify(emac, vid, port_mask, untag_mask, true);
> -		icssg_set_pvid(emac->prueth, vid, emac->port_id);
> -	}
>  	return 0;
>  }
>  
> @@ -843,18 +842,16 @@ static int emac_ndo_vlan_rx_del_vid(struct net_device *ndev,
>  {
>  	struct prueth_emac *emac = netdev_priv(ndev);
>  	struct prueth *prueth = emac->prueth;
> +	int port_mask = BIT(emac->port_id);
>  	int untag_mask = 0;
> -	int port_mask;
>  
> -	if (prueth->is_hsr_offload_mode) {
> +	if (prueth->is_hsr_offload_mode)
>  		port_mask = BIT(PRUETH_PORT_HOST);
> -		untag_mask = 0;
>  
> -		netdev_dbg(emac->ndev, "VID del vid:%u port_mask:%X untag_mask  %X\n",
> -			   vid, port_mask, untag_mask);
> +	netdev_err(emac->ndev, "VID del vid:%u port_mask:%X untag_mask  %X\n",
> +		   vid, port_mask, untag_mask);
Why error? It doesn't look like error path, previously there was
netdev_dbg (made more sense in my opinion)

> +	icssg_vtbl_modify(emac, vid, port_mask, untag_mask, false);
>  
> -		icssg_vtbl_modify(emac, vid, port_mask, untag_mask, false);
> -	}
>  	return 0;
>  }
>  
> -- 
> 2.34.1