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Date:      Sun, 26 Jul 2020 14:14:47 -0700
From:      John-Mark Gurney <jmg@funkthat.com>
To:        Ganbold Tsagaankhuu <ganbold@gmail.com>
Cc:        freebsd-net@freebsd.org, freebsd-current@freebsd.org
Subject:   Re: CFT: major update to if_ure
Message-ID:  <20200726211447.GQ4213@funkthat.com>
In-Reply-To: <CAGtf9xOdpzKqKBUfsDU9nTvN%2BXV4khWgUHCXB02hen_qbyQURw@mail.gmail.com>
References:  <20200725231318.GO4213@funkthat.com> <CAGtf9xOdpzKqKBUfsDU9nTvN%2BXV4khWgUHCXB02hen_qbyQURw@mail.gmail.com>

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Ganbold Tsagaankhuu wrote this message on Sun, Jul 26, 2020 at 11:05 +0800:
> On Sun, Jul 26, 2020 at 7:13 AM John-Mark Gurney <jmg@funkthat.com> wrote:
> 
> > Hello,
> >
> > I'd like people who have ure (RealTek) based USB devices to test
> > review D25809[0].
> >
> > This update adds support for:
> > - HW VLAN tagging
> > - HW checksum offload for IPv4 and IPv6
> > - tx and rx aggreegation (for full gige speeds)
> > - multiple transactions
> >
> > In my testing, I am able to get 900-950Mbps depending upon
> > TCP or UDP, which is a significant improvement over the previous
> > 91Mbps (~8kint/sec*1500bytes/packet*1packet/int).
> 
> Does performance improve for if_ure device on USB2?
> I will try to test it in a couple of days on NanoPI R1 and R1S boards.

Yes, it should.

I never tested the before driver on USB2, but I'm now able to get
211Mbps TX and 190Mbps RX TCP, and 227Mbps TX and 225Mbps RX UDP.

I believe it is likely that the same 91Mbps speed limit applied to
USB2 as well.

> > [0] https://reviews.freebsd.org/D25809

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."



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