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Date: Wed, 21 Mar 2018 08:50:59 -0400
From: Joe Buehler <aspam@cox.net>
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To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject: netmap ixgbevf max frame size
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I am unable to send frames larger than 9216 bytes (destination MAC through trailing CRC inclusive) using ixgbevf hardware with latest netmap code (LINUX).

What is the source of this limitation?  From the chip datasheet it appears that much larger frames are supported.

There is mention of 9216 in some of the driver source files but as an MTU, the max frame size is larger.

Joe Buehler