PCI_MSI_MME_SHIFT
msi_ctrl |= ((highbit(count) -1) << PCI_MSI_MME_SHIFT);
msi_ctrl |= ((highbit(navail) -1) << PCI_MSI_MME_SHIFT);
msi_ctrl |= ((highbit(count) - 1) << PCI_MSI_MME_SHIFT);
msi_ctrl |= ((highbit(count) -1) << PCI_MSI_MME_SHIFT);
msi_ctrl |= ((highbit(count) -1) << PCI_MSI_MME_SHIFT);