netdev - Re: [PATCH net-next] net-next/hinic: Fix MTU limitation

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Date:   Thu, 24 Aug 2017 17:19:58 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Aviad Krawczyk <aviad.krawczyk@...wei.com>
Cc:     davem@...emloft.net, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, zhaochen6@...wei.com
Subject: Re: [PATCH net-next] net-next/hinic: Fix MTU limitation

On Thu, Aug 24, 2017 at 09:21:25PM +0800, Aviad Krawczyk wrote:
> Fix the hw MTU limitation by setting min/max_mtu
> 
> Signed-off-by: Aviad Krawczyk <aviad.krawczyk@...wei.com>
> Signed-off-by: Zhao Chen <zhaochen6@...wei.com>
> ---
>  drivers/net/ethernet/huawei/hinic/hinic_main.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c
> index ae7ad48..7a14963 100644
> --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
> +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
> @@ -980,6 +980,9 @@ static int nic_dev_init(struct pci_dev *pdev)
>  	hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
>  				nic_dev, link_status_event_handler);
>  
> +	netdev->min_mtu = ETH_MIN_MTU;

You don't need to set the min_mtu. See:

http://elixir.free-electrons.com/linux/latest/source/net/ethernet/eth.c#L354

	Andrew