- txq = fep->tx_queue[0];
- bdp = txq->tx_bd_base;
- for (i = 0; i < txq->tx_ring_size; i++) {
- kfree(txq->tx_bounce[i]);
- txq->tx_bounce[i] = NULL;
- skb = txq->tx_skbuff[i];
- txq->tx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
+static void fec_enet_free_queue(struct net_device *ndev)
+{
+ struct fec_enet_private *fep = netdev_priv(ndev);
+ int i;
+ struct fec_enet_priv_tx_q *txq;
+
+ for (i = 0; i < fep->num_tx_queues; i++)
+ if (fep->tx_queue[i] && fep->tx_queue[i]->tso_hdrs) {
+ txq = fep->tx_queue[i];
+ dma_free_coherent(NULL,
+ txq->tx_ring_size * TSO_HEADER_SIZE,
+ txq->tso_hdrs,
+ txq->tso_hdrs_dma);
+ }
+
+ for (i = 0; i < fep->num_rx_queues; i++)
+ if (fep->rx_queue[i])
+ kfree(fep->rx_queue[i]);
+
+ for (i = 0; i < fep->num_tx_queues; i++)
+ if (fep->tx_queue[i])
+ kfree(fep->tx_queue[i]);
+}
+
+static int fec_enet_alloc_queue(struct net_device *ndev)
+{
+ struct fec_enet_private *fep = netdev_priv(ndev);
+ int i;
+ int ret = 0;
+ struct fec_enet_priv_tx_q *txq;
+
+ for (i = 0; i < fep->num_tx_queues; i++) {
+ txq = kzalloc(sizeof(*txq), GFP_KERNEL);
+ if (!txq) {
+ ret = -ENOMEM;
+ goto alloc_failed;
+ }
+
+ fep->tx_queue[i] = txq;
+ txq->tx_ring_size = TX_RING_SIZE;
+ fep->total_tx_ring_size += fep->tx_queue[i]->tx_ring_size;
+
+ txq->tx_stop_threshold = FEC_MAX_SKB_DESCS;
+ txq->tx_wake_threshold =
+ (txq->tx_ring_size - txq->tx_stop_threshold) / 2;
+
+ txq->tso_hdrs = dma_alloc_coherent(NULL,
+ txq->tx_ring_size * TSO_HEADER_SIZE,
+ &txq->tso_hdrs_dma,
+ GFP_KERNEL);
+ if (!txq->tso_hdrs) {
+ ret = -ENOMEM;
+ goto alloc_failed;
+ }