netdev - Re: [PATCH RFC v1 7/7] net/faraday: Enable offload checksum according to device-tree

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Date:	Tue, 6 Oct 2015 17:19:10 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Gavin Shan <gwshan@...ux.vnet.ibm.com>, netdev@...r.kernel.org
Cc:	benh@...nel.crashing.org, davem@...emloft.net
Subject: Re: [PATCH RFC v1 7/7] net/faraday: Enable offload checksum according
 to device-tree

Hello.

On 10/6/2015 6:09 AM, Gavin Shan wrote:

> This enables IP/UDP/TCP offload checksum according to information
> passed on from bootloader through device-tree. The offload doesn't
> working properly when the interface works in NCSI mode.
>
> Signed-off-by: Gavin Shan <gwshan@...ux.vnet.ibm.com>
> ---
>   drivers/net/ethernet/faraday/ftgmac100.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
> index 1b13fd4..8caed35 100644
> --- a/drivers/net/ethernet/faraday/ftgmac100.c
> +++ b/drivers/net/ethernet/faraday/ftgmac100.c
> @@ -1377,7 +1377,11 @@ static int ftgmac100_probe(struct platform_device *pdev)
>
>   	netdev->ethtool_ops = &ftgmac100_ethtool_ops;
>   	netdev->netdev_ops = &ftgmac100_netdev_ops;
> -	netdev->features = NETIF_F_IP_CSUM | NETIF_F_GRO;
> +	if (pdev->dev.of_node &&
> +	    of_get_property(pdev->dev.of_node, "no-hw-checksum", NULL))

    Why not of_property_read_bool()?

> +		netdev->features = NETIF_F_GRO;
> +	else
> +		netdev->features = NETIF_F_IP_CSUM | NETIF_F_GRO;

    Why not set NETIF_F_GRO outside of *if*?

[...]

MBR, Sergei

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