MAX_RX_AVAIL
rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp);
ering->rx_max_pending = MAX_RX_AVAIL;
ering->rx_pending = MAX_RX_AVAIL / BNX2X_NUM_RX_QUEUES(bp);
ering->rx_pending = MAX_RX_AVAIL;
if ((ering->rx_pending > MAX_RX_AVAIL) ||
bp->rx_ring_size = MAX_RX_AVAIL;