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Date:      Mon, 23 Apr 2018 09:59:48 +0200
From:      Borja Marcos <borjam@sarenet.es>
To:        Allan Jude <allanjude@freebsd.org>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Realtek re(4) driver
Message-ID:  <214C069B-940F-41B4-A417-5AF5CC3F7E09@sarenet.es>
In-Reply-To: <054b8c2c-7cd4-fdc2-d02c-d9d8e0ca3c20@freebsd.org>
References:  <CAA3ZYrCdBWi%2BXSge%2BYfDH73a5QpaK0oOVTABb2k16NA5xUx%2BdA@mail.gmail.com> <054b8c2c-7cd4-fdc2-d02c-d9d8e0ca3c20@freebsd.org>

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> On 11 Apr 2018, at 19:34, Allan Jude <allanjude@freebsd.org> wrote:
>=20
> I think it would be useful to collect the 'pciconf -lv' output of the
> re(4) devices that have issues, so they can be differentiated from the
> ones that work fine.

There we go. The machine is an Intel NUC6CAYB. Yep, sounds stupid. Intel =
using Realtek Ethernet chips. Sigh.

re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port =
0xe000-0xe
0ff mem 0x91104000-0x91104fff,0x91100000-0x91103fff at device 0.0 on =
pci3
re0: Using 1 MSI-X message
re0: turning off MSI enable bit.
re0: Chip rev. 0x54000000
re0: MAC rev. 0x00100000
miibus0: <MII bus> on re0
rgephy0: <RTL8251 1000BASE-T media interface> PHY 1 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
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 94:c6:91::

re0@pci0:3:0:0:	class=3D0x020000 card=3D0x20678086 chip=3D0x816810ec =
rev=3D0x15 hdr=3D0x00
    vendor     =3D 'Realtek Semiconductor Co., Ltd.'
    device     =3D 'RTL8111/8168/8411 PCI Express Gigabit Ethernet =
Controller'
    class      =3D network
    subclass   =3D ethernet


What I=E2=80=99ve observed is crazy packet loss and round trip times =
especially when running an iSCSI initiator with a lot
of filesystem activity.







Borja.


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