WX_MAX_RXD
ring->rx_max_pending = WX_MAX_RXD;
if (ring->count == WX_MAX_RXD)
new_rx_count = clamp_t(u32, ring->rx_pending, WX_MIN_RXD, WX_MAX_RXD);
new_rx_count = clamp_t(u32, ring->rx_pending, WX_MIN_RXD, WX_MAX_RXD);