tg3: Allow for recieve of full-size 8021AD frames

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[ Upstream commit 7d3083ee36 ]

When receiving a vlan-tagged frame that still contains
a vlan header, the length of the packet will be greater
then MTU+ETH_HLEN since it will account of the extra
vlan header.  TG3 checks this for the case for 802.1Q,
but not for 802.1ad.  As a result, full sized 802.1ad
frames get dropped by the card.

Add a check for 802.1ad protocol when receving full
sized frames.

Suggested-by: Prashant Sreedharan <prashant@broadcom.com>
CC: Prashant Sreedharan <prashant@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Vlad Yasevich 2014-09-30 19:39:36 -04:00 • committed by Greg Kroah-Hartman

parent f28909e6d5

commit 152fc44a11

1 changed files with 2 additions and 1 deletions

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drivers/net/ethernet/broadcom/tg3.c

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