FBNIC_SIG_PCS_INTR_STS
u32 intr_mask = rd32(fbd, FBNIC_SIG_PCS_INTR_STS);
wr32(fbd, FBNIC_SIG_PCS_INTR_STS,
wr32(fbd, FBNIC_SIG_PCS_INTR_STS, ~0);