MLX4_EN_MAX_RX_BYTES
#ifndef MLX4_EN_MAX_RX_BYTES
mb_head->m_pkthdr.len += MLX4_EN_MAX_RX_BYTES;
mb = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MLX4_EN_MAX_RX_BYTES);
mb->m_len = MLX4_EN_MAX_RX_BYTES;
mb->m_pkthdr.len = MLX4_EN_MAX_RX_BYTES;
mb = (mb->m_next = m_getjcl(M_NOWAIT, MT_DATA, 0, MLX4_EN_MAX_RX_BYTES));
mb->m_len = MLX4_EN_MAX_RX_BYTES;