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From: Klaus Degner <kd@allegro-packets.com>
To: Wenzhuo Lu <wenzhuo.lu@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: [dpdk-dev] jumbo frame support for 82583V
Date: Fri, 17 Jul 2015 13:56:03 +0200	[thread overview]
Message-ID: <55A8ED53.8080802@allegro-packets.com> (raw)

Hi Wenzhuo,

We are testing different Intel NICs for DPDK. We have tested the master
branch with the support for 82583V Intel chip.
It works very well except that we can only use up to 1518 bytes for
maximum packet capture.
We have debugged this and it is restricted in the initialization:

http://dpdk.org/browse/dpdk/tree/drivers/net/e1000/em_ethdev.c#n855

Without DPDK, the linux driver support and mtu up to 9k and ark.intel
reports that this chip is jumbo frame capable:

http://ark.intel.com/de/products/41676/Intel-82583V-Gigabit-Ethernet-Controller

Is there any specific reason why DPDK cannot use jumbo frames for this NIC ?

Thanks for help !

Klaus

             reply	other threads:[~2015-07-17 11:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-17 11:56 Klaus Degner [this message]
2015-07-20  3:14 ` Lu, Wenzhuo
2015-07-20  9:21   ` Klaus Degner
2015-07-21  0:40     ` Lu, Wenzhuo

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