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Message-Id: <201001281334.51123.alex@wildpark.net> Date: Thu, 28 Jan 2010 13:34:50 +0200 From: Alexander Lapidus <alex@...dpark.net> To: netdev@...r.kernel.org Subject: Intel 82598, RSS and PPPoE 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 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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