MVXPE_TQC
reg = MVXPE_READ(sc, MVXPE_TQC) & MVXPE_TQC_EN_MASK;
MVXPE_WRITE(sc, MVXPE_TQC, reg);
reg = MVXPE_READ(sc, MVXPE_TQC);
MVXPE_WRITE(sc, MVXPE_TQC, MVXPE_TQC_ENQ(q));
MVXPE_WRITE(sc, MVXPE_TQC, MVXPE_TQC_ENQ(q));
DPRINTSC(sc, 2, "TQC: %#x\n", MVXPE_READ(sc, MVXPE_TQC));