netdev - Re: [PATCH net] net: stmmac: dwmac4: fix PCS duplex mode decode

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Message-ID: <c555f616-64a8-4453-bab4-a4589f428331@quicinc.com>
Date: Tue, 6 Aug 2024 09:15:21 -0700
From: "Abhishek Chauhan (ABC)" <quic_abchauha@...cinc.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        Serge Semin
	<fancer.lancer@...il.com>
CC: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
        Andrew Halaney <ahalaney@...hat.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S.
 Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub
 Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin
	<mcoquelin.stm32@...il.com>, <netdev@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH net] net: stmmac: dwmac4: fix PCS duplex mode decode



On 7/3/2024 5:24 AM, Russell King (Oracle) wrote:
> dwmac4 was decoding the duplex mode from the GMAC_PHYIF_CONTROL_STATUS
> register incorrectly, using GMAC_PHYIF_CTRLSTATUS_LNKMOD_MASK (value 1)
> rather than GMAC_PHYIF_CTRLSTATUS_LNKMOD (bit 16). Fix this.
> 
> Thanks to Abhishek Chauhan for providing a response on this issue.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> ---
>  drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
> index b25774d69195..26d837554a2d 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
> @@ -791,7 +791,7 @@ static void dwmac4_phystatus(void __iomem *ioaddr, struct stmmac_extra_stats *x)
>  		else
>  			x->pcs_speed = SPEED_10;
>  
> -		x->pcs_duplex = (status & GMAC_PHYIF_CTRLSTATUS_LNKMOD_MASK);
> +		x->pcs_duplex = (status & GMAC_PHYIF_CTRLSTATUS_LNKMOD);
>  
>  		pr_info("Link is Up - %d/%s\n", (int)x->pcs_speed,
>  			x->pcs_duplex ? "Full" : "Half");

Thanks Russell for taking care of this change. 

Can you please add my Reviewed-by: Abhishek Chauhan <quic_abchauha@...cinc.com> on the latest series. 

Thanks 
ABC