RE: [EXT] Re: [PATCH net-next v3 4/7] net: phy: add backplane kr driver support
From: Florinel Iordache <hidden>
Date: 2020-06-22 14:40:00
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-----Original Message----- From: Andrew Lunn <andrew@lunn.ch> Sent: Monday, June 22, 2020 5:25 PM To: Florinel Iordache <redacted> Cc: davem@davemloft.net; netdev@vger.kernel.org; f.fainelli@gmail.com; hkallweit1@gmail.com; linux@armlinux.org.uk; devicetree@vger.kernel.org; linux-doc@vger.kernel.org; robh+dt@kernel.org; mark.rutland@arm.com; kuba@kernel.org; corbet@lwn.net; shawnguo@kernel.org; Leo Li [off-list ref]; Madalin Bucur (OSS) [off-list ref]; Ioana Ciornei [off-list ref]; linux-kernel@vger.kernel.org Subject: [EXT] Re: [PATCH net-next v3 4/7] net: phy: add backplane kr driver support Caution: EXT Email On Mon, Jun 22, 2020 at 04:35:21PM +0300, Florinel Iordache wrote:quoted
Add support for backplane kr generic driver including link training (ieee802.3ap/ba) and fixed equalization algorithmHi Florinel This is still a PHY device. I don't remember any discussions which resolved the issues of if at the end of the backplane there is another PHY. It makes little sense to repost this code until we have this problem discussed and a way forward decided on. It fits into the discussion Russell and Ioana are having about representing PCS drivers. Please contribute to that. Andrew
Hi Andrew, Yes, you are right: we decided to send only support for DPAA1 using current approach as a PHY device (as mentioned in cover-letter), until PCS representation will be fully clarified. The entire DPAA2 support was removed for now, together with phylink changes. DPAA1 maintainer (Madalin Bucur) agrees with current representation as a PHY device for DPAA1. So we would like to have some discussions around this approach for DPAA1 only, as it seems suitable for us. Regards, Florinel.