Date: Tue, 25 Apr 2017 10:08:59 +0100 From: Joe Jones <joe@stream-technologies.com> To: Navdeep Parhar <np@FreeBSD.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: cxgbe netmap promiscuous mode? Message-ID: <58FF122B.1060605@stream-technologies.com> In-Reply-To: <2529e545-fdca-eb51-3290-d5ecbc81ffcb@FreeBSD.org> References: <58D3C6F4.6010500@stream-technologies.com> <CAPFoGT-F86Y-yxEK03rmmJkr0LbP4ocgq27pqw3g=yqkdud4=Q@mail.gmail.com> <58D521C0.1000804@stream-technologies.com> <CAPFoGT9EFNcjpjszMVyGhB7ktKG2ir-srG5noPziPK=4mbXj_g@mail.gmail.com> <58F0E683.7050806@stream-technologies.com> <20170414163215.GA9358@ox> <58F49246.801@stream-technologies.com> <20170419001836.GA4461@ox> <58F72DE2.40503@stream-technologies.com> <20170419143745.GB4461@ox> <58F782DA.6060007@stream-technologies.com> <2529e545-fdca-eb51-3290-d5ecbc81ffcb@FreeBSD.org>
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Thanks Navdeep,
I'll make sure we update firmware in future.
Joe Jones
On 25/04/17 00:55, Navdeep Parhar wrote:
> On 04/19/2017 08:31, Joe Jones wrote:
>> Hi Navdeep,
>>
>> I already got rid of the hw.cxgbe.num_vis line in loader.conf when I
>> rebooted this morning.
>>
>> dev.t5nex.0.firmware_version: 1.15.37.0
>
> I tried this exact firmware and was able to reproduce the problem.
> This appears to be a firmware bug that has already been fixed in the
> 1.16.x firmware available in 10-STABLE.
>
> Regards,
> Navdeep
>
>>
>>
>> On 19/04/17 15:37, Navdeep Parhar wrote:
>>> What is the firmware version?
>>>
>>> # sysctl dev.t5nex.0.firmware_version
>>>
>>> I'll try to repeat the experiment with a T520-SO with the firmware that
>>> you have on your card. Does the card behave this way if the extra VIs
>>> are not created? Can you please try without hw.cxgbe.num_vis in
>>> loader.conf?
>>>
>>> Regards,
>>> Navdeep
>>>
>>> On Wed, Apr 19, 2017 at 10:29:06AM +0100, Joe Jones wrote:
>>>> uname -a
>>>> FreeBSD goose2 11.0-RELEASE-p9 FreeBSD 11.0-RELEASE-p9 #0: Tue Apr 11
>>>> 08:48:40 UTC 2017
>>>> root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
>>>>
>>>> The card is a 'T520-SO Unified Wire Ethernet Controller'
>>>>
>>>> I ran the following with dtrace running in a separate window
>>>>
>>>> ifconfig cxl1 promisc up ( only see broadcast)
>>>> ifconfig cxl1 -promisc
>>>> ifconfig cxl1 promisc (now I see traffic)
>>>>
>>>> dtrace output was
>>>>
>>>> [root@goose2 /usr/home/joe]# dtrace -n 'fbt::t4_set_rxmode:entry
>>>> {trace(arg4)}'
>>>> dtrace: description 'fbt::t4_set_rxmode:entry ' matched 1 probe
>>>> CPU ID FUNCTION:NAME
>>>> 4 61078 t4_set_rxmode:entry 1
>>>> 7 61078 t4_set_rxmode:entry 0
>>>> 5 61078 t4_set_rxmode:entry 1
>>>>
>>>>
>>>> On 19/04/17 01:18, Navdeep Parhar wrote:
>>>>> On Mon, Apr 17, 2017 at 11:00:38AM +0100, Joe Jones wrote:
>>>>>> Hi Navdeep
>>>>>>
>>>>>> running "ifconfig up" and then "ifconfig promisc" works. Running
>>>>>> "ifconfig
>>>>>> promisc" and then "ifconfig up" does not work. Running "ifconfig
>>>>>> up promisc"
>>>>>> together does work. Running "ifconfig promisc up" does not work.
>>>>> What version of FreeBSD is this? I couldn't reproduce this on
>>>>> head with
>>>>> a T6 card. Can you please run this in parallel with your ifconfig
>>>>> commands, note what dtrace logs in response to what command(s),
>>>>> and send
>>>>> the output to me?
>>>>>
>>>>> # dtrace -n 'fbt::t4_set_rxmode:entry {trace(arg4)}'
>>>>>
>>>>>> The combination that does not work leaves the interface in a
>>>>>> state where it
>>>>>> reports it's self as being in promiscuous mode.
>>>>> In my experiments the interface did function in promiscuous mode
>>>>> whether
>>>>> I did "ifconfig cc0 promisc up" or "ifconfig cc0 up promisc".
>>>>>
>>>>> Regards,
>>>>> Navdeep
>>>> _______________________________________________
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>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-net
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>>
>
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