linux-kernel - RE: [RFC net-next 1/5] net: stmmac: introduce IEEE 802.1Qbv configuration functionalities

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Date:   Thu, 27 Jun 2019 23:08:21 +0000
From:   "Ong, Boon Leong" <boon.leong.ong@...el.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>,
        "Voon, Weifeng" <weifeng.voon@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Maxime Coquelin" <mcoquelin.stm32@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Giuseppe Cavallaro" <peppe.cavallaro@...com>,
        Andrew Lunn <andrew@...n.ch>,
        "Florian Fainelli" <f.fainelli@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        "Gomes, Vinicius" <vinicius.gomes@...el.com>
Subject: RE: [RFC net-next 1/5] net: stmmac: introduce IEEE 802.1Qbv
 configuration functionalities

>-----Original Message-----
>From: Jose Abreu [mailto:Jose.Abreu@...opsys.com]
>>From: Voon Weifeng <weifeng.voon@...el.com>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/dw_tsn_lib.c
>b/drivers/net/ethernet/stmicro/stmmac/dw_tsn_lib.c
>> new file mode 100644
>> index 000000000000..cba27c604cb1
>> --- /dev/null
>> +++ b/drivers/net/ethernet/stmicro/stmmac/dw_tsn_lib.c
>
>XGMAC also supports TSN features so I think more abstraction is needed
>on this because the XGMAC implementation is very similar (only reg
>offsets and bitfields changes).
>
>I would rather:
>	- Implement HW specific handling in dwmac4_core.c / dwmac4_dma.c
>and
>add the callbacks in hwif table;
>	- Let TSN logic in this file but call it stmmac_tsn.c.
OK. Thanks for above feedback.
>
>> @@ -3621,6 +3622,8 @@ static int stmmac_set_features(struct net_device
>*netdev,
>>  	 */
>>  	stmmac_rx_ipc(priv, priv->hw);
>>
>> +	netdev->features = features;
>
>Isn't this a fix ?
Yup. We will split this out as a patch and send separately.