Date: Wed, 19 Apr 2017 10:29:06 +0100 From: Joe Jones <joe@stream-technologies.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: cxgbe netmap promiscuous mode? Message-ID: <58F72DE2.40503@stream-technologies.com> In-Reply-To: <20170419001836.GA4461@ox> 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>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?58F72DE2.40503>