From: Siddaraju DH <redacted>

Annotate the 10000baseCR entry in the advertise mask table so users
understand what physical media this mode it actually represents.

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?"

Signed-off-by: Siddaraju DH <redacted>
---
 ethtool.8.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ethtool.8.in b/ethtool.8.in
index 3173287..604de9e 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in

@@ -937,7 +937,7 @@ lB	l	lB.
 0x40000	10000baseKX4 Full
 0x80000	10000baseKR Full
 0x100000	10000baseR_FEC
-0x40000000000	10000baseCR Full
+0x40000000000	10000baseCR Full	(a.k.a 10G_SFI_DA, SFF-8431 Appendix-E)
 0x80000000000	10000baseSR Full
 0x100000000000	10000baseLR Full
 0x200000000000	10000baseLRM Full

-- 
2.25.1