Messages in this thread | | | Subject | Re: [PATCH net-next 1/3] ethtool: Add 100base-FX link mode entries | From | Dan Murphy <> | Date | Tue, 15 Sep 2020 18:26:34 -0500 |
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Andrew
On 9/15/20 3:10 PM, Andrew Lunn wrote: > On Tue, Sep 15, 2020 at 01:17:06PM -0500, Dan Murphy wrote: >> @@ -160,6 +160,8 @@ static const struct phy_setting settings[] = { >> PHY_SETTING( 100, FULL, 100baseT_Full ), >> PHY_SETTING( 100, FULL, 100baseT1_Full ), >> PHY_SETTING( 100, HALF, 100baseT_Half ), >> + PHY_SETTING( 100, HALF, 100baseFX_Half ), >> + PHY_SETTING( 100, FULL, 100baseFX_Full ), > Hi Dan > > Does 100baseFX_Half make an sense? My understanding of 802.3 section > 26 is that it is always a pair, not a single fibre where you might > need CSMA/CD?
I actually questioned that too and looked it up
I found these and thought they could be viable
http://www.certiology.com/tech-terms/network/100base-fx.html
"The 100Base-FX can be used in a maximum length of 412 meters if being used in
half-duplex connections or as 2 kilometer lengths in the case of full-duplex transmissions over optical fiber."
https://www.cnet.com/products/half-duplex-100basefx-interface-pb7/
Of course I never have seen one myself
Dan
> Andrew
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