fl_cap
if (q->offset >= 0 && fl_cap(&rxq->fl) - rxq->fl.avail >= 16)
refill_fl(adap, fl, fl_cap(fl), GFP_KERNEL);
refill_fl(adap, fl, min(MAX_RX_REFILL, fl_cap(fl) - fl->avail),
fl_cap(&rxq->fl) - rxq->fl.avail >= 2*FL_PER_EQ_UNIT)
refill_fl(adapter, fl, fl_cap(fl), GFP_KERNEL);
min((unsigned int)MAX_RX_REFILL, fl_cap(fl) - fl->avail),