NIC_VF_PF_MAILBOX_0_1
NIC_VF_PF_MAILBOX_0_1 | (mbox << 3));
nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 0, msg[0]);
nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 8, msg[1]);
mbx_addr = NIC_VF_PF_MAILBOX_0_1;