netdev - Re: [PATCH] net/mlx5e: restrict the real_dev of vlan device is the same as uplink device

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Date:   Sat, 18 May 2019 11:10:23 +0800
From:   wenxu <wenxu@...oud.cn>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Gavi Teitz <gavi@...lanox.com>, Roi Dayan <roid@...lanox.com>,
        Vlad Buslov <vladbu@...lanox.com>,
        Jianbo Liu <jianbol@...lanox.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] net/mlx5e: restrict the real_dev of vlan device is the
 same as uplink device

There will be multiple vlan device which maybe not belong to the uplink rep device, so wen can limit it

在 2019/5/18 4:30, Saeed Mahameed 写道:
> On Wed, 2019-05-15 at 17:25 +0800, wenxu@...oud.cn wrote:
>> From: wenxu <wenxu@...oud.cn>
>>
>> When register indr block for vlan device, it should check the
>> real_dev
>> of vlan device is same as uplink device. Or it will set offload rule
>> to mlx5e which will never hit.
>>
> I would improve the commit message, it is not really clear to me what
> is going on here.
>
> Anyway Roi and team, can you please provide feedback ..
>
>> Signed-off-by: wenxu <wenxu@...oud.cn>
>> ---
>>  drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
>> b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
>> index 91e24f1..a39fdac 100644
>> --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
>> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
>> @@ -796,7 +796,7 @@ static int mlx5e_nic_rep_netdevice_event(struct
>> notifier_block *nb,
>>  	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
>>  
>>  	if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
>> -	    !is_vlan_dev(netdev))
>> +	    !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) ==
>> rpriv->netdev))
>>  		return NOTIFY_OK;
>>  
>>  	switch (event) {