linux-kernel - Re: [PATCH net 3/3] net: hns3: store rx VLAN tag offload state for VF

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Message-ID: <20250402140155.GR214849@horms.kernel.org>
Date: Wed, 2 Apr 2025 15:01:55 +0100
From: Simon Horman <horms@...nel.org>
To: Jijie Shao <shaojijie@...wei.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, andrew+netdev@...n.ch, shenjian15@...wei.com,
	wangpeiyang1@...wei.com, liuyonglong@...wei.com,
	chenhao418@...wei.com, jonathan.cameron@...wei.com,
	shameerali.kolothum.thodi@...wei.com, salil.mehta@...wei.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 3/3] net: hns3: store rx VLAN tag offload state for VF

On Wed, Apr 02, 2025 at 08:10:01PM +0800, Jijie Shao wrote:
> From: Jian Shen <shenjian15@...wei.com>
> 
> The VF driver missed to store the rx VLAN tag strip state when
> user change the rx VLAN tag offload state. And it will default
> to enable the rx vlan tag strip when re-init VF device after
> reset. So if user disable rx VLAN tag offload, and trig reset,
> then the HW will still strip the VLAN tag from packet nad fill
> into RX BD, but the VF driver will ignore it for rx VLAN tag
> offload disabled. It may cause the rx VLAN tag dropped.
> 
> Fixes: b2641e2ad456 ("net: hns3: Add support of hardware rx-vlan-offload to HNS3 VF driver")
> Signed-off-by: Jian Shen <shenjian15@...wei.com>
> Signed-off-by: Jijie Shao <shaojijie@...wei.com>

Overall this looks good to me.

Reviewed-by: Simon Horman <horms@...nel.org>

...

> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
> index cccef3228461..1e452b14b04e 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
> @@ -252,7 +252,8 @@ struct hclgevf_dev {
>  	u16 *vector_status;
>  	int *vector_irq;
>  
> -	bool gro_en;
> +	u32 gro_en :1;
> +	u32 rxvtag_strip_en :1;

FWIIW, as there is space I would have used two bools here.

>  
>  	unsigned long vlan_del_fail_bmap[BITS_TO_LONGS(VLAN_N_VID)];
>  
> -- 
> 2.33.0
>