mbufq xmit hack
No One
Actions

Authored By

	gallatin
	Tue, Nov 11, 6:40 PM

Size

1 KB

Referenced Files

None

Subscribers

None

mbufq xmit hack
View Options

	static int
	mlx5e_xmit_locked(if_t ifp, struct mlx5e_sq sq, struct mbuf mb)
	{
	struct mbufq *mq;
	struct mbuf *m;
	int err = 0;

	if (unlikely((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0 \|\|
	READ_ONCE(sq->running) == 0)) {
	m_freem(mb);
	return (ENETDOWN);
	}

	/* Do transmit */
	if (mb->m_pkthdr.csum_flags & CSUM_EXTX) {
	mq = mb->m_pkthdr.ex_txq;
	mb->m_pkthdr.ex_txq = NULL;
	mb->m_pkthdr.csum_flags &= ~CSUM_EXTX;
	while (err == 0 && (m = mbufq_dequeue(mq)) != NULL) {
	err = mlx5e_sq_xmit(sq, &m);
	if (err != 0) {
	m_freem(m);
	err = ENOBUFS;
	}
	}
	} else {
	err = mlx5e_sq_xmit(sq, &mb);
	if (err != 0) {
	/* NOTE: m_freem() is NULL safe */
	m_freem(mb);
	err = ENOBUFS;
	}
	}

	/* Write the doorbell record, if any. */
	mlx5e_tx_notify_hw(sq, false);