Exemplo n.º 1
0
/* Set no of Tx, Rx queues to be used */
static int nicvf_set_channels(struct net_device *dev,
			      struct ethtool_channels *channel)
{
	struct nicvf *nic = netdev_priv(dev);
	int err = 0;
	bool if_up = netif_running(dev);

	if (!channel->rx_count || !channel->tx_count)
		return -EINVAL;
	if (channel->rx_count > MAX_RCV_QUEUES_PER_QS)
		return -EINVAL;
	if (channel->tx_count > MAX_SND_QUEUES_PER_QS)
		return -EINVAL;

	if (if_up)
		nicvf_stop(dev);

	nic->qs->rq_cnt = channel->rx_count;
	nic->qs->sq_cnt = channel->tx_count;
	nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);

	err = nicvf_set_real_num_queues(dev, nic->qs->sq_cnt, nic->qs->rq_cnt);
	if (err)
		return err;

	if (if_up)
		nicvf_open(dev);

	netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
		    nic->qs->sq_cnt, nic->qs->rq_cnt);

	return err;
}
Exemplo n.º 2
0
/* Set no of Tx, Rx queues to be used */
static int nicvf_set_channels(struct net_device *dev,
			      struct ethtool_channels *channel)
{
	struct nicvf *nic = netdev_priv(dev);
	int err = 0;
	bool if_up = netif_running(dev);
	u8 cqcount, txq_count;

	if (!channel->rx_count || !channel->tx_count)
		return -EINVAL;
	if (channel->rx_count > nic->max_queues)
		return -EINVAL;
	if (channel->tx_count > nic->max_queues)
		return -EINVAL;

	if (nic->xdp_prog &&
	    ((channel->tx_count + channel->rx_count) > nic->max_queues)) {
		netdev_err(nic->netdev,
			   "XDP mode, RXQs + TXQs > Max %d\n",
			   nic->max_queues);
		return -EINVAL;
	}

	if (if_up)
		nicvf_stop(dev);

	nic->rx_queues = channel->rx_count;
	nic->tx_queues = channel->tx_count;
	if (!nic->xdp_prog)
		nic->xdp_tx_queues = 0;
	else
		nic->xdp_tx_queues = channel->rx_count;

	txq_count = nic->xdp_tx_queues + nic->tx_queues;
	cqcount = max(nic->rx_queues, txq_count);

	if (cqcount > MAX_CMP_QUEUES_PER_QS) {
		nic->sqs_count = roundup(cqcount, MAX_CMP_QUEUES_PER_QS);
		nic->sqs_count = (nic->sqs_count / MAX_CMP_QUEUES_PER_QS) - 1;
	} else {
		nic->sqs_count = 0;
	}

	nic->qs->rq_cnt = min_t(u8, nic->rx_queues, MAX_RCV_QUEUES_PER_QS);
	nic->qs->sq_cnt = min_t(u8, txq_count, MAX_SND_QUEUES_PER_QS);
	nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);

	err = nicvf_set_real_num_queues(dev, nic->tx_queues, nic->rx_queues);
	if (err)
		return err;

	if (if_up)
		nicvf_open(dev);

	netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
		    nic->tx_queues, nic->rx_queues);

	return err;
}
Exemplo n.º 3
0
/* Set no of Tx, Rx queues to be used */
static int nicvf_set_channels(struct net_device *dev,
			      struct ethtool_channels *channel)
{
	struct nicvf *nic = netdev_priv(dev);
	int err = 0;
	bool if_up = netif_running(dev);
	int cqcount;

	if (!channel->rx_count || !channel->tx_count)
		return -EINVAL;
	if (channel->rx_count > nic->max_queues)
		return -EINVAL;
	if (channel->tx_count > nic->max_queues)
		return -EINVAL;

	if (if_up)
		nicvf_stop(dev);

	cqcount = max(channel->rx_count, channel->tx_count);

	if (cqcount > MAX_CMP_QUEUES_PER_QS) {
		nic->sqs_count = roundup(cqcount, MAX_CMP_QUEUES_PER_QS);
		nic->sqs_count = (nic->sqs_count / MAX_CMP_QUEUES_PER_QS) - 1;
	} else {
		nic->sqs_count = 0;
	}

	nic->qs->rq_cnt = min_t(u32, channel->rx_count, MAX_RCV_QUEUES_PER_QS);
	nic->qs->sq_cnt = min_t(u32, channel->tx_count, MAX_SND_QUEUES_PER_QS);
	nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);

	nic->rx_queues = channel->rx_count;
	nic->tx_queues = channel->tx_count;
	err = nicvf_set_real_num_queues(dev, nic->tx_queues, nic->rx_queues);
	if (err)
		return err;

	if (if_up)
		nicvf_open(dev);

	netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
		    nic->tx_queues, nic->rx_queues);

	return err;
}