linux-kernel - Re: [PATCH net-next 3/7] net: hibmcge: Add rx checksum offload supported in this module

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Message-ID: <9d55d0a8-7a85-4caf-8358-7e04621813cc@huawei.com>
Date: Tue, 18 Feb 2025 16:27:28 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@...adcom.com>
CC: <shaojijie@...wei.com>, Simon Horman <horms@...nel.org>,
	<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>,
	<sudongming1@...wei.com>, <xujunsheng@...wei.com>, <shiyongbang@...wei.com>,
	<libaihan@...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-next 3/7] net: hibmcge: Add rx checksum offload
 supported in this module


on 2025/2/18 10:46, Kalesh Anakkur Purayil wrote:
> On Tue, Feb 18, 2025 at 7:47 AM Jijie Shao <shaojijie@...wei.com> wrote:
>>
>> on 2025/2/17 23:40, Simon Horman wrote:
>>> On Thu, Feb 13, 2025 at 11:55:25AM +0800, Jijie Shao wrote:
>>>> This patch implements the rx checksum offload feature
>>>> including NETIF_F_IP_CSUM NETIF_F_IPV6_CSUM and NETIF_F_RXCSUM
>>>>
>>>> Signed-off-by: Jijie Shao <shaojijie@...wei.com>
>>> ...
>>>
>>>> diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
>>>> index 8c631a9bcb6b..aa1d128a863b 100644
>>>> --- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
>>>> +++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_txrx.c
>>>> @@ -202,8 +202,11 @@ static int hbg_napi_tx_recycle(struct napi_struct *napi, int budget)
>>>>    }
>>>>
>>>>    static bool hbg_rx_check_l3l4_error(struct hbg_priv *priv,
>>>> -                                struct hbg_rx_desc *desc)
>>>> +                                struct hbg_rx_desc *desc,
>>>> +                                struct sk_buff *skb)
>>>>    {
>>>> +    bool rx_checksum_offload = priv->netdev->features & NETIF_F_RXCSUM;
>>> nit: I think this would be better expressed in a way that
>>>        rx_checksum_offload is assigned a boolean value (completely untested).
>>>
>>>        bool rx_checksum_offload = !!(priv->netdev->features & NETIF_F_RXCSUM);
>> Okay, I'll modify it in v2.
> Maybe you can remove " in this module" from the patch title as it is
> implicit. This comment/suggestion applies to all patches in this
> series.

Sorry this may not have any bad effect,
so I don't plan to change it in V2.
If anyone else thinks it should be modified,
I will modify it.

Thanks a lot
Jijie Shao

>> Thanks
>> Jijie Shao
>>
>>>> +
>>>>       if (likely(!FIELD_GET(HBG_RX_DESC_W4_L3_ERR_CODE_M, desc->word4) &&
>>>>                  !FIELD_GET(HBG_RX_DESC_W4_L4_ERR_CODE_M, desc->word4)))
>>>>               return true;
>