netdev - RE: [EXT] [PATCH RFC net-next 10/15] net: prestera: update PCS driver to use neg

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Date: Tue, 13 Jun 2023 16:17:10 +0000
From: Elad Nachman <enachman@...vell.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        Andrew Lunn
	<andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>
CC: Alexander Couzens <lynxis@...0.eu>,
        AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>,
        Alexander Couzens
	<lynxis@...0.eu>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Daniel Golle
	<daniel@...rotopia.org>,
        Daniel Machon <daniel.machon@...rochip.com>,
        "David
 S. Miller" <davem@...emloft.net>,
        DENG Qingfang <dqfext@...il.com>, Eric
 Dumazet <edumazet@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Ioana Ciornei
	<ioana.ciornei@....com>,
        Jakub Kicinski <kuba@...nel.org>,
        Jose Abreu
	<Jose.Abreu@...opsys.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Lars
 Povlsen <lars.povlsen@...rochip.com>,
        "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>,
        "linux-mediatek@...ts.infradead.org"
	<linux-mediatek@...ts.infradead.org>,
        Madalin Bucur <madalin.bucur@....com>, Marcin Wojtas <mw@...ihalf.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Michal Simek <michal.simek@....com>,
        "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Paolo
 Abeni <pabeni@...hat.com>,
        Radhey Shyam Pandey
	<radhey.shyam.pandey@...inx.com>,
        Sean Anderson <sean.anderson@...o.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Steen Hegelund
	<Steen.Hegelund@...rochip.com>,
        Taras Chornyi <taras.chornyi@...ision.eu>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        Vladimir
 Oltean <olteanv@...il.com>
Subject: RE: [EXT] [PATCH RFC net-next 10/15] net: prestera: update PCS driver
 to use neg_mode



> -----Original Message-----
> From: Russell King <rmk@...linux.org.uk> On Behalf Of Russell King (Oracle)
> Sent: Tuesday, June 13, 2023 5:38 PM
> To: Andrew Lunn <andrew@...n.ch>; Heiner Kallweit
> <hkallweit1@...il.com>
> Cc: Alexander Couzens <lynxis@...0.eu>; AngeloGioacchino Del Regno
> <angelogioacchino.delregno@...labora.com>; Alexander Couzens
> <lynxis@...0.eu>; Claudiu Beznea <claudiu.beznea@...rochip.com>; Daniel
> Golle <daniel@...rotopia.org>; Daniel Machon
> <daniel.machon@...rochip.com>; David S. Miller <davem@...emloft.net>;
> DENG Qingfang <dqfext@...il.com>; Eric Dumazet
> <edumazet@...gle.com>; Florian Fainelli <f.fainelli@...il.com>; Horatiu
> Vultur <horatiu.vultur@...rochip.com>; Ioana Ciornei
> <ioana.ciornei@....com>; Jakub Kicinski <kuba@...nel.org>; Jose Abreu
> <Jose.Abreu@...opsys.com>; Landen Chao <Landen.Chao@...iatek.com>;
> Lars Povlsen <lars.povlsen@...rochip.com>; linux-arm-
> kernel@...ts.infradead.org; linux-mediatek@...ts.infradead.org; Madalin
> Bucur <madalin.bucur@....com>; Marcin Wojtas <mw@...ihalf.com>;
> Matthias Brugger <matthias.bgg@...il.com>; Michal Simek
> <michal.simek@....com>; netdev@...r.kernel.org; Nicolas Ferre
> <nicolas.ferre@...rochip.com>; Paolo Abeni <pabeni@...hat.com>;
> Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>; Sean Anderson
> <sean.anderson@...o.com>; Sean Wang <sean.wang@...iatek.com>;
> Steen Hegelund <Steen.Hegelund@...rochip.com>; Taras Chornyi
> <taras.chornyi@...ision.eu>; Thomas Petazzoni
> <thomas.petazzoni@...tlin.com>; UNGLinuxDriver@...rochip.com;
> Vladimir Oltean <olteanv@...il.com>
> Subject: [EXT] [PATCH RFC net-next 10/15] net: prestera: update PCS driver to
> use neg_mode
> 
> External Email
> 
> ----------------------------------------------------------------------
> Update prestera's embedded PCS driver to use neg_mode rather than the
> mode argument. As there is no pcs_link_up() method, this only affects the
> pcs_config() method.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> ---
>  drivers/net/ethernet/marvell/prestera/prestera_main.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c
> b/drivers/net/ethernet/marvell/prestera/prestera_main.c
> index 9d504142e51a..4fb886c57cd7 100644
> --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
> +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
> @@ -300,8 +300,7 @@ static void prestera_pcs_get_state(struct phylink_pcs
> *pcs,
>  	}
>  }
> 
> -static int prestera_pcs_config(struct phylink_pcs *pcs,
> -			       unsigned int mode,
> +static int prestera_pcs_config(struct phylink_pcs *pcs, unsigned int
> +neg_mode,
>  			       phy_interface_t interface,
>  			       const unsigned long *advertising,
>  			       bool permit_pause_to_mac)
> @@ -316,30 +315,25 @@ static int prestera_pcs_config(struct phylink_pcs
> *pcs,
> 
>  	cfg_mac.admin = true;
>  	cfg_mac.fec = PRESTERA_PORT_FEC_OFF;
> +	cfg_mac.inband = neg_mode ==
> PHYLINK_PCS_NEG_INBAND_ENABLED;
> 
>  	switch (interface) {
>  	case PHY_INTERFACE_MODE_10GBASER:
>  		cfg_mac.speed = SPEED_10000;
> -		cfg_mac.inband = 0;
>  		cfg_mac.mode = PRESTERA_MAC_MODE_SR_LR;
>  		break;
>  	case PHY_INTERFACE_MODE_2500BASEX:
>  		cfg_mac.speed = SPEED_2500;
>  		cfg_mac.duplex = DUPLEX_FULL;
> -		cfg_mac.inband =
> test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
> -					  advertising);
>  		cfg_mac.mode = PRESTERA_MAC_MODE_SGMII;
>  		break;
>  	case PHY_INTERFACE_MODE_SGMII:
> -		cfg_mac.inband = 1;
>  		cfg_mac.mode = PRESTERA_MAC_MODE_SGMII;
>  		break;
>  	case PHY_INTERFACE_MODE_1000BASEX:
>  	default:
>  		cfg_mac.speed = SPEED_1000;
>  		cfg_mac.duplex = DUPLEX_FULL;
> -		cfg_mac.inband =
> test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
> -					  advertising);
>  		cfg_mac.mode = PRESTERA_MAC_MODE_1000BASE_X;
>  		break;
>  	}
> @@ -401,6 +395,7 @@ static int prestera_port_sfp_bind(struct
> prestera_port *port)
>  			continue;
> 
>  		port->phylink_pcs.ops = &prestera_pcs_ops;
> +		port->phylink_pcs.neg_mode = true;
> 
>  		port->phy_config.dev = &port->dev->dev;
>  		port->phy_config.type = PHYLINK_NETDEV;
> --
> 2.30.2
> 

Acked-by: Elad Nachman <enachman@...vell.com>