+void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
+{
+ int ring;
+ struct qlcnic_host_tx_ring *tx_ring;
+
+ for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+ tx_ring = &adapter->tx_ring[ring];
+ if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
+ vfree(tx_ring->cmd_buf_arr);
+ tx_ring->cmd_buf_arr = NULL;
+ }
+ }
+ if (adapter->tx_ring != NULL)
+ kfree(adapter->tx_ring);
+}
+
+int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
+ struct net_device *netdev)
+{
+ int ring, size, vector, index;
+ struct qlcnic_host_tx_ring *tx_ring;
+ struct qlcnic_cmd_buffer *cmd_buf_arr;
+
+ size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
+ tx_ring = kzalloc(size, GFP_KERNEL);
+ if (tx_ring == NULL) {
+ dev_err(&netdev->dev, "failed to allocate tx rings\n");
+ return -ENOMEM;
+ }
+ adapter->tx_ring = tx_ring;
+
+ for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+ tx_ring = &adapter->tx_ring[ring];
+ tx_ring->num_desc = adapter->num_txd;
+ tx_ring->txq = netdev_get_tx_queue(netdev, ring);
+ cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
+ if (cmd_buf_arr == NULL) {
+ dev_err(&netdev->dev,
+ "failed to allocate cmd buffer ring\n");
+ qlcnic_free_tx_rings(adapter);
+ return -ENOMEM;
+ }
+ memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
+ tx_ring->cmd_buf_arr = cmd_buf_arr;
+ }
+
+ if (qlcnic_83xx_check(adapter)) {
+ for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+ tx_ring = &adapter->tx_ring[ring];
+ tx_ring->adapter = adapter;
+ if (adapter->flags & QLCNIC_MSIX_ENABLED) {
+ index = adapter->max_sds_rings + ring;
+ vector = adapter->msix_entries[index].vector;
+ tx_ring->irq = vector;
+ }
+ }
+ }
+ return 0;
+}
+