CTX_SIG_EVENTS_ACTIVE
qat_hal_rd_ae_csr(handle, ae, CTX_SIG_EVENTS_ACTIVE, &act_sig);
qat_hal_wr_ae_csr(handle, ae, CTX_SIG_EVENTS_ACTIVE, 0);
qat_hal_wr_ae_csr(handle, ae, CTX_SIG_EVENTS_ACTIVE, act_sig);
qat_hal_wr_ae_csr(handle, ae, CTX_SIG_EVENTS_ACTIVE, 0);
qat_ae_write_4(sc, ae, CTX_SIG_EVENTS_ACTIVE, 0);
qat_ae_read_4(sc, ae, CTX_SIG_EVENTS_ACTIVE, &active_sig);
qat_ae_write_4(sc, ae, CTX_SIG_EVENTS_ACTIVE, 0);
qat_ae_write_4(sc, ae, CTX_SIG_EVENTS_ACTIVE, active_sig);