/*
* Called from a taskqueue to drain queued transmit packets.
*/
void
ixl_deferred_mq_start(void *arg, int pending)
{
struct ixl_queue *que = arg;
struct tx_ring *txr = &que->txr;
struct ixl_vsi *vsi = que->vsi;
struct ifnet *ifp = vsi->ifp;
IXL_TX_LOCK(txr);
if (!drbr_empty(ifp, txr->br))
ixl_mq_start_locked(ifp, txr);
IXL_TX_UNLOCK(txr);
}
static void mlx4_en_destroy_rl_res(struct mlx4_en_priv *priv,
int ring_id)
{
struct mlx4_en_tx_ring *ring;
struct mlx4_en_dev *mdev = priv->mdev;
ring = priv->tx_ring[ring_id];
mutex_lock(&mdev->state_lock);
/* Index was validated, thus ring is not NULL */
spin_lock(&ring->tx_lock);
if (ring->rl_data.user_valid == false) {
en_err(priv, "ring %d doesn't exist\n", ring_id);
spin_unlock(&ring->tx_lock);
return;
} else {
ring->rl_data.user_valid = false;
}
if (!drbr_empty(priv->dev, ring->br)) {
struct mbuf *m;
while ((m = buf_ring_dequeue_sc(ring->br)) != NULL) {
m_freem(m);
}
}
spin_unlock(&ring->tx_lock);
atomic_subtract_int(&priv->rate_limits[ring->rl_data.rate_index].ref, 1);
/* Deactivate resources */
if (priv->port_up) {
mlx4_en_deactivate_tx_ring(priv, ring);
mlx4_en_deactivate_cq(priv, priv->tx_cq[ring_id]);
msleep(10);
mlx4_en_free_tx_buf(priv->dev, ring);
}
mutex_unlock(&mdev->state_lock);
/* clear statistics */
ring->bytes = 0;
ring->packets = 0;
sysctl_ctx_free(&ring->rl_data.rl_stats_ctx);
/* Add index to re-use list */
priv->rate_limit_tx_ring_num--;
mlx4_en_rl_reused_index_insert(priv, ring_id);
}
