On Thu, Jul 02, 2026 at 08:23:26PM +0530, Siddaraju DH wrote:

Add comment to clarify the physical media 10000baseCR follows.

10000baseCR does not correspond to any IEEE 802.3 *base-CR PMD.
It has no autonegotiation, no link training, and no mandatory FEC.
The industry standard for this media type is SFF-8431 Appendix-E
Direct Attach cable, also known as 10G_SFI_DA.

This change follows the conversation from netdev mail thread with
subject: "the confusing 10000base_CR. Shouldn't it be 10000_SFI_DA?"

Please add a link to lore, it makes it a lot easier to get to the
discussion.

Link: https://lore.kernel.org/r/[Message-ID]

    Andrew

---
pw-bot: cr