From: Alexander Lapidus <alex@wildpark.net>
To: netdev@vger.kernel.org
Subject: Intel 82598, RSS and PPPoE
Date: Thu, 28 Jan 2010 13:34:50 +0200 [thread overview]
Message-ID: <201001281334.51123.alex@wildpark.net> (raw)
Hello, everybody!
Help is needed in such case. We have a linux-box, running under CentOS 5.4
with a latest kernel. Intel 10 Gigabit AF DA Dual Port Server Adapter (based
on Intel 82598EB) is used for routing purposes. Linux-box is dual CPU Xeon
E5530 server. Interface eth0 is an uplink to the network core with pure IPv4
trafic on it. Interface eth1 is an downlink to customers. We have 3000 802.1q
VLANs on it. PPPoE server daemon is running on all VLAN interfaces. So we have
ethernet frames with 802.1q VLAN tag and PPPoE header incapsulated. Our
problem is with RX packet distribution between rx-queues on this interface.
All those packets are coming to RX-queue-0. As i understood from Intel
specification on 82598 chipset, problem is with RSS, which can't decode PPPoE
header, so packet is going only to queue 0. My question is how to force such
packets to spread between different queues. May be it's possible to use VMDq
in this configuration, or any other solution?
P.S. We tried this configuration with in-kernel driver and with latest driver
from Intel (ixgbe-2.0.44.14). Situation is the same.
--
Thanks a lot,
Alexander Lapidus
AL546-RIPE
WildPark ISP,
Nikolaev, UA
next reply other threads:[~2010-01-28 11:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 11:34 Alexander Lapidus [this message]
2010-01-28 15:59 ` Intel 82598, RSS and PPPoE Eric Dumazet
2010-01-28 19:32 ` Brandeburg, Jesse
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