From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Charles Perry <charles.perry@microchip.com>
Cc: netdev@vger.kernel.org, Sean Anderson <sean.anderson@linux.dev>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Claudiu Beznea <claudiu.beznea@tuxon.dev>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 2/2] net: macb: add support for reporting SGMII inband link status
Date: Thu, 19 Feb 2026 17:15:46 +0000 [thread overview]
Message-ID: <aZdFQu0VkVlWZOAw@shell.armlinux.org.uk> (raw)
In-Reply-To: <20260219170113.1774090-2-charles.perry@microchip.com>
On Thu, Feb 19, 2026 at 09:01:12AM -0800, Charles Perry wrote:
> This makes it possible to use in-band autonegotiation with
> SGMII.
>
> If using a device tree, this can be done by adding the managed =
> "in-band-status" property to the gem node.
>
> Signed-off-by: Charles Perry <charles.perry@microchip.com>
...
> root@p64h:~# ifconfig eth1 up 10.180.59.33
> macb 40004184000.ethernet eth1: PHY 4000c21e000.mdio-mdio:02 doesn't supply possible interfaces
> macb 40004184000.ethernet eth1: PHY [4000c21e000.mdio-mdio:02] driver [Microsemi GE VSC8574 SyncE] (irq=POLL)
> macb 40004184000.ethernet eth1: phy: sgmii setting supported 00000000,00000000,00000000,000042ff advertising 00000000,00000000,00000000,000042ff
> macb 40004184000.ethernet eth1: configuring for inband/sgmii link mode
> macb 40004184000.ethernet eth1: major config, requested inband/sgmii
> macb 40004184000.ethernet eth1: interface sgmii inband modes: pcs=00 phy=03
As your PCS is now configurable, please implement the .pcs_inband_caps
method (which will make the above pcs != 0.)
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2026-02-19 17:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-19 17:01 [PATCH net-next 1/2] net: macb: fix SGMII with inband aneg disabled Charles Perry
2026-02-19 17:01 ` [PATCH net-next 2/2] net: macb: add support for reporting SGMII inband link status Charles Perry
2026-02-19 17:15 ` Russell King (Oracle) [this message]
2026-02-19 17:13 ` [PATCH net-next 1/2] net: macb: fix SGMII with inband aneg disabled Russell King (Oracle)
2026-02-19 17:19 ` Russell King (Oracle)
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