Subject: Re: [PATCH V3 net-next 4/5] net:hns: Add support of ethtool TSO set
 option for Hip06 in HNS
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
        Salil Mehta <salil.mehta@huawei.com>, davem@davemloft.net,
        robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
        paul.gortmaker@windriver.com, ijc+devicetree@hellion.org.uk,
        galak@codeaurora.org, catalin.marinas@arm.com, will.deacon@arm.com,
        arnd@arndb.de, liguozhu@hisilicon.com, yisen.zhuang@huawei.com,
        dingtianhong@huawei.com, zhangfei.gao@linaro.org,
        huangdaode@hisilicon.com, kenneth-lee-2012@foxmail.com,
        xuwei5@hisilicon.com, lisheng011@huawei.com,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
        linuxarm@huawei.com
References: <1447966706-16219-1-git-send-email-salil.mehta@huawei.com>
 <1447966706-16219-5-git-send-email-salil.mehta@huawei.com>
 <564F2915.1090507@cogentembedded.com>
From: Salil Mehta <mehta.salil.lnk@gmail.com>
Message-ID: <565300F2.7030308@gmail.com>
Date: Mon, 23 Nov 2015 12:05:06 +0000
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On 20/11/15 14:07, Sergei Shtylyov wrote:
> On 11/19/2015 11:58 PM, Salil Mehta wrote:
>
>> From: Salil <salil.mehta@huawei.com>
>>
>> This patch adds the support of ethtool TSO option to V1 patch,
>> meant to add support of Hip06 SoC to HNS
>>
>> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
>> Signed-off-by: lisheng <lisheng011@huawei.com>
>> ---
>>   drivers/net/ethernet/hisilicon/hns/hns_enet.c |   47 
>> +++++++++++++++++++++++++
>>   1 file changed, 47 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c 
>> b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
>> index 055e14c..a0763ab 100644
>> --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
>> +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
>> @@ -1386,6 +1386,51 @@ static int hns_nic_change_mtu(struct 
>> net_device *ndev, int new_mtu)
>>       return ret;
>>   }
>>
>> +static int hns_nic_set_features(struct net_device *netdev,
>> +                netdev_features_t features)
>> +{
>> +    struct hns_nic_priv *priv = netdev_priv(netdev);
>> +    struct hnae_handle *h = priv->ae_handle;
>> +
>> +    switch (priv->enet_ver) {
>> +    case AE_VERSION_1:
>> +        if ((features & NETIF_F_TSO) || (features & NETIF_F_TSO6))
>
>         if ((features & (NETIF_F_TSO| NETIF_F_TSO6))
Thanks. changed in V4 PATCH.
>
>> +            netdev_info(netdev, "enet v1 do not support tso!\n");
>> +    break;
>
>    The *break* should have the same indentation level as *if*.
Thanks for pointing out. changed in V4 PATCH.
>
>> +    default:
>> +        if ((features & NETIF_F_TSO) || (features & NETIF_F_TSO6)) {
>
>     if ((features & (NETIF_F_TSO| NETIF_F_TSO6))
>
>> +            priv->ops.fill_desc = fill_tso_desc;
>> +            priv->ops.maybe_stop_tx = hns_nic_maybe_stop_tso;
>> +            /* The chip only support 7*4096 */
>> +            netif_set_gso_max_size(netdev, 7 * 4096);
>> +            h->dev->ops->set_tso_stats(h, 1);
>> +        } else {
>> +            priv->ops.fill_desc = fill_v2_desc;
>> +            priv->ops.maybe_stop_tx = hns_nic_maybe_stop_tx;
>> +            h->dev->ops->set_tso_stats(h, 0);
>> +        }
>> +    break;
>
>    Same here.
Thanks for pointing out. changed in V4 PATCH.
>
>> +    }
>> +    netdev->features = features;
>> +    return 0;
>> +}
>> +
>> +static netdev_features_t hns_nic_fix_features(
>> +        struct net_device *netdev, netdev_features_t features)
>> +{
>> +    struct hns_nic_priv *priv = netdev_priv(netdev);
>> +
>> +    switch (priv->enet_ver) {
>> +    case AE_VERSION_1:
>> +        features &= ~(NETIF_F_TSO | NETIF_F_TSO6 |
>> +                NETIF_F_HW_VLAN_CTAG_FILTER);
>> +        break;
>> +    default:
>> +        break;
>> +    }
>
>    Here it's indented correctly.
Got it, thanks!
>
>> +    return features;
>> +}
>> +
>>   /**
>>    * nic_set_multicast_list - set mutl mac address
>>    * @netdev: net device
> [...]
>
> MBR, Sergei
>

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