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From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Pawel Dembicki <paweldembicki@gmail.com>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/9] net: dsa: vsc73xx: fix phylink capabilities
Date: Tue, 30 Jul 2024 00:05:55 +0100	[thread overview]
Message-ID: <ZqggU9zWlvBh5fOb@shell.armlinux.org.uk> (raw)
In-Reply-To: <20240729210615.279952-2-paweldembicki@gmail.com>

On Mon, Jul 29, 2024 at 11:06:07PM +0200, Pawel Dembicki wrote:
> According datasheet, VSC73XX family switches supports symmetric and
> asymmetric pause and 1000BASE in FD only.

What about the configuration of the pause? I notice the mac_link_up()
method ignores tx_pause/rx_pause, and instead just does this:

        /* Flow control for the PHY facing ports:
         * Use a zero delay pause frame when pause condition is left
         * Obey pause control frames
         * When generating pause frames, use 0xff as pause value
         */
        vsc73xx_write(vsc, VSC73XX_BLOCK_MAC, port, VSC73XX_FCCONF,
                      VSC73XX_FCCONF_ZERO_PAUSE_EN |
                      VSC73XX_FCCONF_FLOW_CTRL_OBEY |
                      0xff);

which suggests only symmetric pause is supported by the driver _and_
it is always enabled irrespective of what was negotiated.

I think this needs to be fixed first, before changing the capabilities.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

  parent reply	other threads:[~2024-07-29 23:06 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-29 21:06 [PATCH net-next 0/9] net: dsa: vsc73xx: fix MDIO bus access and PHY operations Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 1/9] net: dsa: vsc73xx: fix phylink capabilities Pawel Dembicki
2024-07-29 22:54   ` Andrew Lunn
2024-07-29 23:05   ` Russell King (Oracle) [this message]
2024-07-29 21:06 ` [PATCH net-next 2/9] net: dsa: vsc73xx: fix port MAC configuration in full duplex mode Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 3/9] net: dsa: vsc73xx: pass value in phy_write operation Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 4/9] net: dsa: vsc73xx: use defined values in phy operations Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 5/9] net: dsa: vsc73xx: use mutex to mdio operations Pawel Dembicki
2024-07-29 23:07   ` Andrew Lunn
2024-07-29 21:06 ` [PATCH net-next 6/9] net: dsa: vsc73xx: speed up mdio bus to max allowed value Pawel Dembicki
2024-07-29 23:10   ` Andrew Lunn
2024-07-30 18:55     ` Paweł Dembicki
2024-07-30 20:23       ` Andrew Lunn
2024-07-29 21:06 ` [PATCH net-next 7/9] net: dsa: vsc73xx: allow phy resetting Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 8/9] net: phy: vitesse: repair vsc73xx autonegotiation Pawel Dembicki
2024-07-29 21:06 ` [PATCH net-next 9/9] net: phy: vitesse: implement downshift in vsc73xx phys Pawel Dembicki
2024-07-29 23:39   ` Russell King (Oracle)
2024-07-29 22:53 ` [PATCH net-next 0/9] net: dsa: vsc73xx: fix MDIO bus access and PHY operations Andrew Lunn

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