Date: Fri, 16 Mar 2018 18:48:30 -0400 From: Joe Buehler <aspam@cox.net> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: netmap ixgbevf mtu Message-ID: <5AAC49BE.3030508@cox.net>
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I am having difficulties with netmap over top of ixgbevf when attempting to use a large MTU (say 9000 bytes). Does the ixgbevf driver use 2048 byte buffers for RX regardless of the MTU or netmap buffer size? I can send large frames just fine but inbound frames are passed via netmap as 2048 bytes max. It is possible that netmap is passing frames in multiple pieces I suppose, I haven't checked that yet -- my code is looking at the frame headers only at the moment so would toss trailing pieces. Joe Buehler
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