bnx2x: Support PF <-> VF Bulletin Board
The PF <-> VF Bulletin Board is a simple interface between the PF and the VF. The main reason for the Bulletin Board is to allow the PF to be the initiator. The VF publishes at 'acquire' stage the GPA of a Bulletin Board structure it has allocated. The PF notes this GPA in the VF database. The VF samples the Bulletin Board periodically for new messages. The latest version of the BB is always used. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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