Re: pcie Realtek 8168G issues (re driver)

Hi,
thanks you all for the replies.

Unfortunately, the network chip is still not working and I updated the
PR (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197535) with the
last tests.
It seems that received packets are not transferred to mbuf or they are
transferred, but later, after the mbuf is already freed; moreover, the
ring entries are written without looping, overwriting and messing up
the whole kernel memory. It looks like a DMA issues, but

Apparently it seems a hardware error, but using a Linux distro, it works :(

Has someone maybe any other ideas? In the meanwhile I'll get another
board with the same chip :O

Best regards,
Luca


On Tue, Feb 17, 2015 at 7:31 PM, O. Hartmann
<[email protected]> wrote:
> Am Tue, 17 Feb 2015 18:32:22 +0100
> Luca Pizzamiglio <[email protected]> schrieb:
>
>> Hi Ben,
>> thanks for the tip! tso was already disabled.
>> I tried anyway and unfortunately it crashes as before.
>>
>> I filled a bug report
>> (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197535) and marius@
>> is giving me a big help on it.
>>
>> Best regards,
>> Luca
>>
>> On Fri, Feb 13, 2015 at 7:34 PM, Ben Perrault <[email protected]> wrote:
>> > 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 && ifconfig re0 -tso &&
>> > ifconfig re0 up ). This also seems to stop the panics under current.
>> >
>> > I'm not sure it will work for you - but it has on everyone of those interfaces I've
>> > dealt with.
>> >
>> > Good luck,
>> > -bp
>> >
>> >> On Feb 13, 2015, at 8:06 AM, Luca Pizzamiglio <[email protected]> wrote:
>> >>
>> >> Hi, I'm Luca,
>> >>
>> >> I've some issues using a PCIe Realtek Ethernet board:
>> >> re0@pci0:3:0:0: class=0x020000 card=0x012310ec chip=0x816810ec rev=0x0c hdr=0x00
>> >>    vendor     = 'Realtek Semiconductor Co., Ltd.'
>> >>    device     = 'RTL8111/8168B PCI Express Gigabit Ethernet controller'
>> >>    class      = network
>> >>    subclass   = ethernet
>> >>    bar   [10] = type I/O Port, range 32, base 0x1000, size 256, enabled
>> >>    bar   [18] = type Memory, range 64, base 0x90500000, size 4096, enabled
>> >>    bar   [20] = type Prefetchable Memory, range 64, base 0x90400000,
>> >> size 16384, enabled
>> >>    cap 01[40] = powerspec 3  supports D0 D1 D2 D3  current D0
>> >>    cap 05[50] = MSI supports 1 message, 64 bit
>> >>    cap 10[70] = PCI-Express 2 endpoint IRQ 1 max data 128(128) link x1(x1)
>> >>                 speed 2.5(2.5) ASPM disabled(L0s/L1)
>> >>    cap 11[b0] = MSI-X supports 4 messages
>> >>                 Table in map 0x20[0x0], PBA in map 0x20[0x800]
>> >>    cap 03[d0] = VPD
>> >>    ecap 0001[100] = AER 1 0 fatal 0 non-fatal 0 corrected
>> >>    ecap 0002[140] = VC 1 max VC0
>> >>    ecap 0003[160] = Serial 1 01000000684ce000
>> >>    ecap 0018[170] = LTR 1
>> >>
>> >> 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.
>> >>
>> >> I filled a bug report with more infos:
>> >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197535
>> >>
>> >> could someone kindly pointing some ideas?
>> >>
>> >> Best regards,
>> >> Luca
>> >> _______________________________________________
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>
> In September 2014 I filed allready a bug acoording to strange behaviour with a Lenovo
> ThinkPad E540 with a Realtek chip:
>
>
>  Bug 193743 - RTL8111/8168B PCI Express Gigabit Ethernet
> controller: doesn't work properly, problems getting UP automatically
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