Re: [PATCH net-next 1/2] net: phy: Add Speed downshift set driver for Microsemi PHYs.

On Fri, Oct 14, 2016 at 05:10:32PM +0530, Raju Lakkaraju wrote:

From: Raju Lakkaraju <redacted>

For operation in cabling environments that are incompatible with
1000BAST-T, VSC8531 device provides an automatic link speed
downshift operation. When enabled, the device automatically changes
its 1000BAST-T auto-negotiation to the next slower speed after
a configured number of failed attempts at 1000BAST-T.
This feature is useful in setting up in networks using older cable
installations that include only pairs A and B, and not pairs C and D.

Any reason not to just turn this on by default when auto-neg is
enabled?

	Andrew