From: Eric Dumazet <eric.dumazet@gmail.com>
To: "Lynch, Jonathan" <jonathan.lynch@thenowfactory.com>
Cc: netdev@vger.kernel.org
Subject: Re: Fwd: pktgen with vlan packets
Date: Fri, 20 May 2011 17:20:37 +0200 [thread overview]
Message-ID: <1305904837.3173.20.camel@edumazet-laptop> (raw)
In-Reply-To: <BANLkTinBGkApfasGywg888wDXZBYPOpQDQ@mail.gmail.com>
Le vendredi 20 mai 2011 à 16:03 +0100, Lynch, Jonathan a écrit :
> Hi,
>
> Im running 2.6.35 kernel with an Intel 82599 NIC.
> I want to send packets using pktgen via a number of vlan interfaces (1
> physical interface) created via vconfig but I get an OOPs when I try
> and send via the vlan interface. See attached log file for the oops.
> Im not using the pgset "vlan_id 77" params because I want to send
> packets with more than 1 VLAN tag to one interface. (If it was
> possible to send packets with different vlan tags over the one
> interface with pktgen I would use it)
>
> my config is as follows:
> ifconfig eth4 up
> modprobe 8021q
> vconfig add eth4 256
> ifconfig eth4.256 up
>
> My pktgen config is the exact same as
> ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/examples/pktgen.conf-1-1
> except that instead of eth1, I have eth4.256.
>
> Any ideas as to how I can send packets with multiple VLAN tags over
> the same interface with pktgen?
I am afraid you cant yet.
About the crash, you can either :
1) delete qdisc on eth4
ifconfig eth4 txqueuelen 0
tc qdisc add dev eth0 root sfq
tc qdisc del dev eth0 root
2) use clone_skb 0 only
(Or else, same skb can be queued several time on eth4 qdisc) -> crash
next prev parent reply other threads:[~2011-05-20 15:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BANLkTinybQHjqXe-0SOU4wHTJg0M=QX=ow@mail.gmail.com>
2011-05-20 15:03 ` Fwd: pktgen with vlan packets Lynch, Jonathan
2011-05-20 15:20 ` Eric Dumazet [this message]
2011-05-20 16:30 ` Lynch, Jonathan
2011-05-20 16:43 ` Eric Dumazet
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