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From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Sean Anderson <sean.anderson@seco.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>,
	netdev@vger.kernel.org, "David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Claudiu Beznea <claudiu.beznea@microchip.com>,
	Antoine Tenart <atenart@kernel.org>
Subject: Re: [PATCH v4] net: macb: Fix several edge cases in validate
Date: Tue, 26 Oct 2021 18:46:52 +0100	[thread overview]
Message-ID: <YXg/DP2d1UM831+c@shell.armlinux.org.uk> (raw)
In-Reply-To: <61d9f92e-78d8-5d14-50d1-1ed886ec0e17@seco.com>

On Tue, Oct 26, 2021 at 01:28:15PM -0400, Sean Anderson wrote:
> Actually, according to the Zynq UltraScale+ Devices Register Reference
> [1], the PCS does not support 10/100. So should SGMII even fall through
> here?
> 
> [1] https://www.xilinx.com/html_docs/registers/ug1087/gem___pcs_control.html

Hmm. That brings with it fundamental question: if the PCS supports 1G
only, does it _actually_ support Cisco SGMII, or does it only support
1000base-X?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

  reply	other threads:[~2021-10-26 17:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-25 17:24 [PATCH v4] net: macb: Fix several edge cases in validate Sean Anderson
2021-10-25 21:19 ` Russell King (Oracle)
2021-10-25 21:35   ` Sean Anderson
2021-10-26 16:37     ` Nicolas Ferre
2021-10-26 17:04       ` Russell King (Oracle)
2021-10-26 17:28         ` Sean Anderson
2021-10-26 17:46           ` Russell King (Oracle) [this message]
2021-10-26 17:49             ` Sean Anderson
2021-10-26 18:28               ` Russell King (Oracle)
2021-10-26 18:52                 ` Sean Anderson
2021-10-27  7:02                   ` Nicolas.Ferre
2021-10-26  0:44 ` Jakub Kicinski
2021-10-26 15:30   ` Sean Anderson
2021-10-26 15:39     ` Jakub Kicinski
2021-10-26 16:32       ` Nicolas Ferre
2021-10-26 15:51     ` Russell King (Oracle)

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