Re: usb3 to ethernet adapter on rpi4

From: Mark Millard via freebsd-arm <freebsd-arm_at_freebsd.org>
Date: Mon, 24 May 2021 12:16:07 -0700
On 2021-May-24, at 04:00, tech-lists <tech-lists_at_zyxst.net> wrote:

> Does anyone here use a usb3 <> ethernet adapter on rpi3 or 4? Something
> like
> https://www.amazon.co.uk/ATOLLA-Ethernet-Adapter-Compatible-Nintendo/dp/B0886B1S5J
> 
> If so, what version of freebsd? What does the interface come up as?

I've used the below over the time frame of using a RPi4B: Genet was
not initially supported in a context I was experimenting with. Other
than some testing, no other RPi3 use. The RPi3 has fundamental USB2
speed limitations as I remember (even for USB2). Part of the issue
being that all USB shares one internal hub with limitations shared,
if I remember right: ultimately single channel.


Several "CableCreation(tm)" "Gigabit" devices
(no model number on outside, separate materials if
I remember right):

ugen2.2: <Realtek USB 10/100/1000 LAN> at usbus2
ure0 on uhub1
ure0: <Realtek USB 10/100/1000 LAN, class 0/0, rev 3.00/30.00, addr 1> on usbus2
miibus0: <MII bus> on ure0
rgephy0: <RTL8251/8153 1000BASE-T media interface> PHY 0 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto

These are generally the fastest of the few types that
I have used. I helped test when the speedup was done
for a range of Realtek's that spanned these. I could
look up when that was if desired. The update got
to more like NetBSD speeds. (I did some
compare/contrast activity during testing.)

I've shown that genet0 has problems for non-debug
FreeBSD builds in my context, problems that have not
repeated with the use of these instead.

I also use one of these on a MACCHIATObin Double Shot.
(FreeBSD does not support any of the built-in Ethernet
hardware, last I knew.) Sometimes used via the USB3
port, sometimes via a USB2 port (via a USB2 header).

I also use one of these on an old PowerMac G5 that has
a problematical built-in Ethernet. In that context,
they are not as fast but were somewhat faster than the
others that I later list.

It has been a while since I've used the others in any
system. As I remember they all seemed to work. I still
have them all around and so testing is possible.



A "j5create" "USB 3.0 Gigabit Ethernet" Model No. JUE130 :

ugen2.2: <ASIX Elec. AX88179> at usbus2
axge0 on uhub1
axge0: <NetworkInterface> on usbus2
miibus0: <MII bus> on axge0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 3 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow


A "plugable" "USB3.0 Gigabit Ethernet Adapter" Model USB3-E1000 :

ugen2.2: <ASIX Elec. Corp. AX88179> at usbus2
axge0 on uhub1
axge0: <NetworkInterface> on usbus2
miibus0: <MII bus> on axge0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 3 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow

(Yep: essentially the same as the j5create, other than
"Corp.".)



If I remember right, the NetBSD speeds were faster for
these than the FreeBSD speeds for them. There are probably
notes about such in the old messages from when I was
testing.


I hope this helps.

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
Received on Mon May 24 2021 - 19:16:07 UTC

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