MLX4_TX_BOUNCE_BUFFER_SIZE
ring->bounce_buf = kmalloc_node(MLX4_TX_BOUNCE_BUFFER_SIZE,
ring->bounce_buf = kmalloc(MLX4_TX_BOUNCE_BUFFER_SIZE,
#define MLX4_MAX_DESC_TXBBS (MLX4_TX_BOUNCE_BUFFER_SIZE / TXBB_SIZE)