s2io_msix_fifo_handle(int irq, void *dev_id, struct pt_regs *regs);
static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs);
static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag);
s2io_msix_fifo_handle(int irq, void *dev_id, struct pt_regs *regs);
static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs);
static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag);