• Yuval Mintz's avatar
    qed: Add VF->PF channel infrastructure · 37bff2b9
    Yuval Mintz authored
    Communication between VF and PF is based on a dedicated HW channel;
    VF will prepare a messge, and by signaling the HW the PF would get a
    notification of that message existance. The PF would then copy the
    message, process it and DMA an answer back to the VF as a response.
    
    The messages themselves are TLV-based - allowing easier backward/forward
    compatibility.
    
    This patch adds the infrastructure of the channel on the PF side -
    starting with the arrival of the notification and ending with DMAing
    the response back to the VF.
    
    It also adds a dummy-response as reference, as it only lays the
    groundwork of the communication; it doesn't really add support of any
    actual messages.
    Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@qlogic.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    37bff2b9
qed_spq.c 22.1 KB