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

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Message-ID: <a5ee3798-1cd8-198d-ec85-da11444770f8@mellanox.com>
Date:   Sun, 19 May 2019 06:49:17 +0000
From:   Roi Dayan <roid@...lanox.com>
To:     wenxu <wenxu@...oud.cn>, Saeed Mahameed <saeedm@...lanox.com>,
        Gavi Teitz <gavi@...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



On 18/05/2019 06:10, wenxu wrote:
> 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) {

thanks!

you should add a fixes line
Fixes: 35a605db168c ("net/mlx5e: Offload TC e-switch rules with ingress VLAN device")

beside that all good.
Reviewed-by: Roi Dayan <roid@...lanox.com>