-static void igb_free_queues(struct igb_adapter *adapter)
-{
- int i;
-
- for (i = 0; i < adapter->num_tx_queues; i++) {
- kfree(adapter->tx_ring[i]);
- adapter->tx_ring[i] = NULL;
- }
- for (i = 0; i < adapter->num_rx_queues; i++) {
- kfree(adapter->rx_ring[i]);
- adapter->rx_ring[i] = NULL;
- }
- adapter->num_rx_queues = 0;
- adapter->num_tx_queues = 0;
-}
-
-/**
- * igb_alloc_queues - Allocate memory for all rings
- * @adapter: board private structure to initialize
- *
- * We allocate one ring per queue at run-time since we don't know the
- * number of queues at compile-time.
- **/
-static int igb_alloc_queues(struct igb_adapter *adapter)
-{
- struct igb_ring *ring;
- int i;
-
- for (i = 0; i < adapter->num_tx_queues; i++) {
- ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
- if (!ring)
- goto err;
- ring->count = adapter->tx_ring_count;
- ring->queue_index = i;
- ring->dev = &adapter->pdev->dev;
- ring->netdev = adapter->netdev;
- /* For 82575, context index must be unique per ring. */
- if (adapter->hw.mac.type == e1000_82575)
- set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags);
- adapter->tx_ring[i] = ring;
- }
-
- for (i = 0; i < adapter->num_rx_queues; i++) {
- ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
- if (!ring)
- goto err;
- ring->count = adapter->rx_ring_count;
- ring->queue_index = i;
- ring->dev = &adapter->pdev->dev;
- ring->netdev = adapter->netdev;
- /* set flag indicating ring supports SCTP checksum offload */
- if (adapter->hw.mac.type >= e1000_82576)
- set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags);
-
- /*
- * On i350, i210, and i211, loopback VLAN packets
- * have the tag byte-swapped.
- * */
- if (adapter->hw.mac.type >= e1000_i350)
- set_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags);
-
- adapter->rx_ring[i] = ring;
- }
-
- igb_cache_ring_register(adapter);
-
- return 0;
-
-err:
- igb_free_queues(adapter);
-
- return -ENOMEM;
-}
-