[Bug 205050] VLAN_MTU required by smsc driver
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Mon Dec 14 09:46:52 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205050
--- Comment #2 from commit-hook at freebsd.org ---
A commit references this bug:
Author: hselasky
Date: Mon Dec 14 09:46:47 UTC 2015
New revision: 292185
URL: https://svnweb.freebsd.org/changeset/base/292185
Log:
MFC r291953:
When setting up VLANs on a Raspberry Pi ethernet port, the MTU drops
from 1500 to 1496 bytes. The MTU should remain at 1500, extending the
frame size as per IEEE 802.3. Adding IFCAP_VLAN_MTU to the
if_capabilities field in the smsc driver solves the problem. The
datasheet for the LAN9512 chip, section 3.2.3 states that the chip
supports the extended frame.
Submitted by: rpp at ci.com.au
PR: 205050
Changes:
_U stable/10/
stable/10/sys/dev/usb/net/if_smsc.c
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