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Message-ID: <Y+TNDFovmcjy+ctb@corigine.com>
Date:   Thu, 9 Feb 2023 11:38:04 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Clément Léger <clement.leger@...tlin.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Herve Codina <herve.codina@...tlin.com>,
        Miquèl Raynal <miquel.raynal@...tlin.com>,
        Milan Stevanovic <milan.stevanovic@...com>,
        Jimmy Lalande <jimmy.lalande@...com>,
        Pascal Eberhard <pascal.eberhard@...com>,
        Arun Ramadoss <Arun.Ramadoss@...rochip.com>,
        linux-renesas-soc@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] net: dsa: rzn1-a5psw: add vlan support

On Wed, Feb 08, 2023 at 05:04:53PM +0100, Clément Léger wrote:
> Add support for vlan operation (add, del, filtering) on the RZN1
> driver. The a5psw switch supports up to 32 VLAN IDs with filtering,
> tagged/untagged VLANs and PVID for each ports.
> 
> Signed-off-by: Clément Léger <clement.leger@...tlin.com>
> ---
>  drivers/net/dsa/rzn1_a5psw.c | 167 +++++++++++++++++++++++++++++++++++
>  drivers/net/dsa/rzn1_a5psw.h |   8 +-
>  2 files changed, 172 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c
> index 0ce3948952db..de6b18ec647d 100644
> --- a/drivers/net/dsa/rzn1_a5psw.c
> +++ b/drivers/net/dsa/rzn1_a5psw.c
> @@ -583,6 +583,147 @@ static int a5psw_port_fdb_dump(struct dsa_switch *ds, int port,
>  	return ret;
>  }
>  
> +static int a5psw_port_vlan_filtering(struct dsa_switch *ds, int port,
> +				     bool vlan_filtering,
> +				     struct netlink_ext_ack *extack)
> +{
> +	u32 mask = BIT(port + A5PSW_VLAN_VERI_SHIFT) |
> +		   BIT(port + A5PSW_VLAN_DISC_SHIFT);
> +	struct a5psw *a5psw = ds->priv;
> +	u32 val = 0;
> +
> +	if (vlan_filtering)
> +		val = BIT(port + A5PSW_VLAN_VERI_SHIFT) |
> +		      BIT(port + A5PSW_VLAN_DISC_SHIFT);

nit: could this be expressed as follows?

	val = vlan_filtering ? mask : 0 ?

> +
> +	a5psw_reg_rmw(a5psw, A5PSW_VLAN_VERIFY, mask, val);
> +
> +	return 0;
> +}

...

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