tree 7db74a71be645a8fb774340bc3829d4492d5eb4d
parent ca9bdb9b279d3bffb7f8a0dc15686a2c23fa0c12
author Ariel Elior <ariele@broadcom.com> 1358911314 +0000
committer David S. Miller <davem@davemloft.net> 1358967510 -0500

bnx2x: SR-IOV version compatibility bugfix

When posting a message on the bulletin board, the PF calculates crc
over the message and places the result in the message. When the VF
samples the Bulletin Board it copies the message aside and validates
this crc. The length of the message is crucial here and must be the
same in both parties. Since the PF is running in the Hypervisor and
the VF is running in a Vm, they can possibly be of different versions.
As the Bulletin Board is designed to grow forward in future versions,
in the VF the length must not be the size of the message structure
but instead it should be a field in the message itself.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>