Hi Klaus,
> -----Original Message----- > From: Klaus Degner [mailto:kd at allegro-packets.com] > Sent: Friday, July 17, 2015 7:56 PM > To: Lu, Wenzhuo > Cc: dev at dpdk.org > Subject: jumbo frame support for 82583V > > 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 Sorry, I'm not sure about the history. According to the datasheet's update log, 82583v doesn't support jumbo frame at first. I think the reason is the e1000 code is not updated after the datasheet said the jumbo frame is supported. As I don?t have the NIC on hand, would you like to change the code and have a try. I mean just let " case e1000_82583" return 9K. Thanks.
