NR_TX_DESC
for (i=0; i<NR_TX_DESC; i++) {
memset(dev->tx_descs, 0, NR_TX_DESC * DESC_SIZE * 4);
nr_free = (tx_done_idx + NR_TX_DESC-2 - free_idx) % NR_TX_DESC;
dev->tx_intr_idx = (dev->tx_intr_idx + NR_TX_DESC/4) % NR_TX_DESC;
free_idx = (free_idx + 1) % NR_TX_DESC;
if (dev->tx_idx >= NR_TX_DESC) {
memset(dev->tx_descs, 0, 4 * NR_TX_DESC * DESC_SIZE);
for (i=0; i<NR_TX_DESC; i++) {
+ ((i+1) % NR_TX_DESC) * DESC_SIZE * 4);
4 * DESC_SIZE * NR_TX_DESC,
dma_free_coherent(&pci_dev->dev, 4 * DESC_SIZE * NR_TX_DESC,
dma_free_coherent(&dev->pci_dev->dev, 4 * DESC_SIZE * NR_TX_DESC,
struct sk_buff *tx_skbs[NR_TX_DESC];
(((NR_TX_DESC-2 + dev->tx_done_idx - dev->tx_free_idx) % NR_TX_DESC) > MIN_TX_DESC_FREE)
tx_done_idx = (tx_done_idx + 1) % NR_TX_DESC;