From: Siddaraju DH <siddaraju.dh@intel.com>
To: Michal Kubecek <mkubecek@suse.cz>, Andrew Lunn <andrew@lunn.ch>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
netdev@vger.kernel.org
Cc: Shubham Das <Shubham.Das@intel.com>,
Balaji Chintalapalle <balaji.chintalapalle@intel.com>,
Vijay Srinivasan <vijay.srinivasan@intel.com>,
Magnus Lindberg <magnus.k.lindberg@ericsson.com>,
Niklas Damberg <niklas.damberg@ericsson.com>,
Jonas Wirandi <jonas.wirandi@ericsson.com>,
Siddaraju DH <siddarajudh@gmail.com>,
Siddaraju DH <siddaraju.dh@intel.com>
Subject: [PATCH v2 ethtool] man: ethtool: link 10000baseCR to SFF-8431, Appendix-E SFP+ DA
Date: Fri, 3 Jul 2026 15:50:04 +0530 [thread overview]
Message-ID: <20260703102004.1111597-1-siddaraju.dh@intel.com> (raw)
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.
Link: https://lore.kernel.org/r/SN7PR11MB69003D33489DB1D6B17EF72A9AF52@SN7PR11MB6900.namprd11.prod.outlook.com
Signed-off-by: Siddaraju DH <siddaraju.dh@intel.com>
---
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
next reply other threads:[~2026-07-03 10:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-03 10:20 Siddaraju DH [this message]
2026-07-03 13:41 ` [PATCH v2 ethtool] man: ethtool: link 10000baseCR to SFF-8431, Appendix-E SFP+ DA Maxime Chevallier
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