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Date:      Fri, 13 Feb 2015 10:34:49 -0800
From:      Ben Perrault <ben.perrault@gmail.com>
To:        Luca Pizzamiglio <luca.pizzamiglio@gmail.com>
Cc:        FreeBSD Hackers <freebsd-hackers@freebsd.org>, "freebsd-network@freebsd.org" <freebsd-network@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>, "freebsd-hardware@freebsd.org" <freebsd-hardware@freebsd.org>
Subject:   Re: pcie Realtek 8168G issues (re driver)
Message-ID:  <4E4BF84E-F6FD-4D25-8B2C-2B443894697B@gmail.com>
In-Reply-To: <CAB88xy9oCbq8s99bkWOAGptkH4vr2omsQqyLHrMNHAhtZDH-5g@mail.gmail.com>
References:  <CAB88xy9oCbq8s99bkWOAGptkH4vr2omsQqyLHrMNHAhtZDH-5g@mail.gmail.com>

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Luca,

I've had the same issue with this interface on both PCIe boards and embedded=
 in a handful of Lenovo products. The one, fairly ugly workaround I've found=
 that makes it work well enough is disable tso ( i.e. ifconfig re0 down && i=
fconfig re0 -tso && ifconfig re0 up ). This also seems to stop the panics un=
der current.

I'm not sure it will work for you - but it has on everyone of those interfac=
es I've dealt with.=20

Good luck,
-bp

> On Feb 13, 2015, at 8:06 AM, Luca Pizzamiglio <luca.pizzamiglio@gmail.com>=
 wrote:
>=20
> Hi, I'm Luca,
>=20
> I've some issues using a PCIe Realtek Ethernet board:
> re0@pci0:3:0:0: class=3D0x020000 card=3D0x012310ec chip=3D0x816810ec rev=3D=
0x0c hdr=3D0x00
>    vendor     =3D 'Realtek Semiconductor Co., Ltd.'
>    device     =3D 'RTL8111/8168B PCI Express Gigabit Ethernet controller'
>    class      =3D network
>    subclass   =3D ethernet
>    bar   [10] =3D type I/O Port, range 32, base 0x1000, size 256, enabled
>    bar   [18] =3D type Memory, range 64, base 0x90500000, size 4096, enabl=
ed
>    bar   [20] =3D type Prefetchable Memory, range 64, base 0x90400000,
> size 16384, enabled
>    cap 01[40] =3D powerspec 3  supports D0 D1 D2 D3  current D0
>    cap 05[50] =3D MSI supports 1 message, 64 bit
>    cap 10[70] =3D PCI-Express 2 endpoint IRQ 1 max data 128(128) link x1(x=
1)
>                 speed 2.5(2.5) ASPM disabled(L0s/L1)
>    cap 11[b0] =3D MSI-X supports 4 messages
>                 Table in map 0x20[0x0], PBA in map 0x20[0x800]
>    cap 03[d0] =3D VPD
>    ecap 0001[100] =3D AER 1 0 fatal 0 non-fatal 0 corrected
>    ecap 0002[140] =3D VC 1 max VC0
>    ecap 0003[160] =3D Serial 1 01000000684ce000
>    ecap 0018[170] =3D LTR 1
>=20
> Rx and Tx don't work. After some minutes the interface is activated I
> get kernel panic.
> I've already tried to disable MSIx and MSI.
> It seems a DMA problem, rx fill the 256 descriptors and the nothing
> else until the panic. netstat -s shows now new packets.
>=20
> I filled a bug report with more infos:
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D197535
>=20
> could someone kindly pointing some ideas?
>=20
> Best regards,
> Luca
> _______________________________________________
> freebsd-current@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"=




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