netdev - Re: [PATCH net-next 1/4] vlan: Add MACsec offload operations for VLAN interface

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Date:   Mon, 27 Mar 2023 09:43:35 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Emeel Hakim <ehakim@...dia.com>
Cc:     <davem@...emloft.net>, <pabeni@...hat.com>, <edumazet@...gle.com>,
        <sd@...asysnail.net>, <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/4] vlan: Add MACsec offload operations for
 VLAN interface

On Sun, 26 Mar 2023 10:26:33 +0300 Emeel Hakim wrote:
> @@ -572,6 +573,9 @@ static int vlan_dev_init(struct net_device *dev)
>  			   NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC |
>  			   NETIF_F_ALL_FCOE;
>  
> +	if (real_dev->features & NETIF_F_HW_MACSEC)
> +		dev->hw_features |= NETIF_F_HW_MACSEC;
> +
>  	dev->features |= dev->hw_features | NETIF_F_LLTX;
>  	netif_inherit_tso_max(dev, real_dev);
>  	if (dev->features & NETIF_F_VLAN_FEATURES)
> @@ -660,6 +664,9 @@ static netdev_features_t vlan_dev_fix_features(struct net_device *dev,
>  	features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE);
>  	features |= NETIF_F_LLTX;
>  
> +	if (real_dev->features & NETIF_F_HW_MACSEC)
> +		features |= NETIF_F_HW_MACSEC;
> +
>  	return features;
>  }

Shouldn't vlan_features be consulted somehow?

> @@ -803,6 +810,49 @@ static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx,
>  	return 0;
>  }
>  
> +#if IS_ENABLED(CONFIG_MACSEC)
> +#define VLAN_MACSEC_MDO(mdo) \
> +static int vlan_macsec_ ## mdo(struct macsec_context *ctx) \
> +{ \
> +	const struct macsec_ops *ops; \
> +	ops =  vlan_dev_priv(ctx->netdev)->real_dev->macsec_ops; \
> +	return ops ? ops->mdo_ ## mdo(ctx) : -EOPNOTSUPP; \
> +}
> +
> +#define VLAN_MACSEC_DECLARE_MDO(mdo) vlan_macsec_ ## mdo
> +
> +VLAN_MACSEC_MDO(add_txsa);
> +VLAN_MACSEC_MDO(upd_txsa);
> +VLAN_MACSEC_MDO(del_txsa);
> +
> +VLAN_MACSEC_MDO(add_rxsa);
> +VLAN_MACSEC_MDO(upd_rxsa);
> +VLAN_MACSEC_MDO(del_rxsa);
> +
> +VLAN_MACSEC_MDO(add_rxsc);
> +VLAN_MACSEC_MDO(upd_rxsc);
> +VLAN_MACSEC_MDO(del_rxsc);
> +
> +VLAN_MACSEC_MDO(add_secy);
> +VLAN_MACSEC_MDO(upd_secy);
> +VLAN_MACSEC_MDO(del_secy);

-1

impossible to grep for the functions :( but maybe others don't care