[Intel-wired-lan] [next-queue v2] fm10k: Correct MTU for jumbo frames

Singh, Krishneil K krishneil.k.singh at intel.com
Wed Sep 30 18:55:23 UTC 2015


-----Original Message-----
From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On Behalf Of Jacob Keller
Sent: Tuesday, August 25, 2015 1:49 PM
To: Intel Wired LAN <intel-wired-lan at lists.osuosl.org>
Subject: [Intel-wired-lan] [next-queue v2] fm10k: Correct MTU for jumbo frames

Based on hardware testing, the host interface supports up to 15368 bytes as the maximum frame size. To determine the correct MTU, we subtract 8 for the internal switch tag, 14 for the L2 header, and 4 for the appended FCS header, resulting in 15342 bytes of payload for our maximum MTU on jumbo frames.

Signed-off-by: Matthew Vick <matthew.vick at intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
---
Tested-by: Krishneil Singh <krishneil.k.singh at intel.com>






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