On Mon, 1 Feb 2021 16:14:05 -0800 Edwin Peer wrote: > > > Yes, there would be multiple link modes that map to the same speed and > > > lane combination, but that doesn't mean you need to accept them if the > > > media doesn't match what's plugged in also. In the above scenario, the > > > supported mask should not list SR because CR is physically plugged in. > > > That way, the user knows what options are legal and the kernel knows > > > what it can reject. > > > > If the modes depend on what's plugged in - what happens if cable gets > > removed? We (you, Danielle, I) can agree what we think is best, but > > history teaches us that doesn't matter in long run. We had a similar > > conversation when it comes to FEC. There simply is no way for upstream > > developers to review the behavior is correct. > > Given that supported is only defined in the context of autoneg today, > once could still specify. But again, you raise a fair concern. > > The asymmetry in interface is still ugly though, you get to decide > which ugly is worse. :P
Let's move with this series as is. We can see how prevalent the use of link_mode is on get side first.