netdev - Re: [PATCH net-next v2 03/14] net: sfp: add more extended compliance codes

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Message-ID: <20191210172130.GX25745@shell.armlinux.org.uk>
Date:   Tue, 10 Dec 2019 17:21:31 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 03/14] net: sfp: add more extended compliance
 codes

On Tue, Dec 10, 2019 at 05:57:16PM +0100, Andrew Lunn wrote:
> On Mon, Dec 09, 2019 at 03:18:39PM +0000, Russell King wrote:
> > SFF-8024 is used to define various constants re-used in several SFF
> > SFP-related specifications.  Split these constants from the enum, and
> > rename them to indicate that they're defined by SFF-8024.
> > 
> > Add and use updated SFF-8024 extended compliance code definitions for
> > 10GBASE-T, 5GBASE-T and 2.5GBASE-T modules.
> > 
> > Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
> 
> > +	case SFF8024_CONNECTOR_SG: /* guess */
> 
> Does SFF8024 say anything about this, or is it still a guess?

SFF-8024 doesn't describe the connectors.  It just gives a table:

            09h        MU (Multiple Optical)
	    0Ah        SG
            0Bh        Optical Pigtail
	    0Ch        MPO 1x12 (Multifiber Parallel Optic)

Searching for "SFP SG connector" or "fiber SG connector" on google
doesn't provide anything useful.  So yes, it remains a guess until
someone can say what it actually is.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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