kfree(tx_ring->tcb_ring);
}
+#define MAX_TX_DESC_PER_PKT 24
+
/* nic_send_packet - NIC specific send handler for version B silicon. */
static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)
{
u32 i;
- struct tx_desc desc[24];
+ struct tx_desc desc[MAX_TX_DESC_PER_PKT];
u32 frag = 0;
u32 thiscopy, remainder;
struct sk_buff *skb = tcb->skb;
* more than 5 fragments.
*/
- /* nr_frags should be no more than 18. */
- BUILD_BUG_ON(MAX_SKB_FRAGS + 1 > 23);
-
memset(desc, 0, sizeof(struct tx_desc) * (nr_frags + 1));
for (i = 0; i < nr_frags; i++) {
struct et131x_adapter *adapter = netdev_priv(netdev);
struct tx_ring *tx_ring = &adapter->tx_ring;
+ /* This driver does not support TSO, it is very unlikely
+ * this condition is true.
+ */
+ if (unlikely(skb_shinfo(skb)->nr_frags > MAX_TX_DESC_PER_PKT - 2)) {
+ if (skb_linearize(skb))
+ goto drop_err;
+ }
/* stop the queue if it's getting full */
if (tx_ring->used >= NUM_TCB - 1 && !netif_queue_stopped(netdev))
netif_stop_queue(netdev);