ECM_INT_DELAY_MASK
usecs &= ECM_INT_DELAY_MASK;
queue->irq_delay &= ~ECM_INT_DELAY_MASK;
usecs = (queue->irq_delay & ECM_INT_DELAY_MASK);
#define TSNEP_COALESCE_USECS_MAX ((ECM_INT_DELAY_MASK >> ECM_INT_DELAY_SHIFT) * \