/**
* Poll for available rx dma descriptors in ethernet operating mode
*/
static void poll_rx(struct ccat_eth_priv *const priv)
{
static const size_t overhead = CCAT_ETH_FRAME_HEAD_LEN - 4;
struct ccat_eth_dma_fifo *const fifo = &priv->rx_fifo;
/* TODO omit possible deadlock in situations with heavy traffic */
while (ccat_eth_frame_received(fifo->next)) {
const size_t len = le16_to_cpu(fifo->next->length) - overhead;
if (priv->ecdev) {
ecdev_receive(priv->ecdev, fifo->next->data, len);
} else {
ccat_eth_receive(priv->netdev, fifo->next->data, len);
}
ccat_eth_rx_fifo_add(fifo, fifo->next);
ccat_eth_fifo_inc(fifo);
}
}
static void ecdev_receive_eim(struct ccat_eth_priv *const priv, size_t len)
{
ecdev_receive(priv->ecdev, priv->rx_fifo.eim.next->data, len);
}
