netdev - Re: [PATCH 5/6] net: fsl/fman: add support for PHY_INTERFACE_MODE

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Message-ID: <20191219173016.GD25745@shell.armlinux.org.uk>
Date:   Thu, 19 Dec 2019 17:30:16 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     madalin.bucur@....com
Cc:     davem@...emloft.net, netdev@...r.kernel.org, andrew@...n.ch,
        f.fainelli@...il.com, hkallweit1@...il.com, shawnguo@...nel.org,
        devicetree@...r.kernel.org,
        Madalin Bucur <madalin.bucur@....nxp.com>
Subject: Re: [PATCH 5/6] net: fsl/fman: add support for PHY_INTERFACE_MODE_SFI

On Thu, Dec 19, 2019 at 05:21:20PM +0200, Madalin Bucur wrote:
> Add support for the SFI PHY interface mode.
> 
> Signed-off-by: Madalin Bucur <madalin.bucur@....nxp.com>
> ---
>  drivers/net/ethernet/freescale/fman/fman_memac.c | 2 ++
>  drivers/net/ethernet/freescale/fman/mac.c        | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
> index d0b12efadd6c..09fdec935bf2 100644
> --- a/drivers/net/ethernet/freescale/fman/fman_memac.c
> +++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
> @@ -440,6 +440,7 @@ static int init(struct memac_regs __iomem *regs, struct memac_cfg *cfg,
>  	tmp = 0;
>  	switch (phy_if) {
>  	case PHY_INTERFACE_MODE_XFI:
> +	case PHY_INTERFACE_MODE_SFI:

No difference between these two.

>  	case PHY_INTERFACE_MODE_XGMII:
>  		tmp |= IF_MODE_10G;
>  		break;
> @@ -456,6 +457,7 @@ static int init(struct memac_regs __iomem *regs, struct memac_cfg *cfg,
>  	/* TX_FIFO_SECTIONS */
>  	tmp = 0;
>  	if (phy_if == PHY_INTERFACE_MODE_XFI ||
> +	    phy_if == PHY_INTERFACE_MODE_SFI ||

Again, no difference between these two.

>  	    phy_if == PHY_INTERFACE_MODE_XGMII) {
>  		if (slow_10g_if) {
>  			tmp |= (TX_FIFO_SECTIONS_TX_AVAIL_SLOW_10G |
> diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
> index 2944188c19b3..5e6317742c38 100644
> --- a/drivers/net/ethernet/freescale/fman/mac.c
> +++ b/drivers/net/ethernet/freescale/fman/mac.c
> @@ -542,6 +542,7 @@ static const u16 phy2speed[] = {
>  	[PHY_INTERFACE_MODE_QSGMII]		= SPEED_1000,
>  	[PHY_INTERFACE_MODE_XGMII]		= SPEED_10000,
>  	[PHY_INTERFACE_MODE_XFI]		= SPEED_10000,
> +	[PHY_INTERFACE_MODE_SFI]		= SPEED_10000,

Again, no difference between these two.

>  };
>  
>  static struct platform_device *dpaa_eth_add_device(int fman_id,
> @@ -800,6 +801,7 @@ static int mac_probe(struct platform_device *_of_dev)
>  
>  	/* The 10G interface only supports one mode */
>  	if (mac_dev->phy_if == PHY_INTERFACE_MODE_XFI ||
> +	    mac_dev->phy_if == PHY_INTERFACE_MODE_SFI ||

Again, no difference between these two.

I just don't see the point of perpetuating the XFI and SFI names for
something that is just plain 10GBASE-R.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up