| /* |
| * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., 59 |
| * Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| * |
| * The full GNU General Public License is included in this distribution in the |
| * file called COPYING. |
| */ |
| #ifndef NETDMA_H |
| #define NETDMA_H |
| #include <linux/config.h> |
| #ifdef CONFIG_NET_DMA |
| #include <linux/dmaengine.h> |
| |
| static inline struct dma_chan *get_softnet_dma(void) |
| { |
| struct dma_chan *chan; |
| rcu_read_lock(); |
| chan = rcu_dereference(__get_cpu_var(softnet_data.net_dma)); |
| if (chan) |
| dma_chan_get(chan); |
| rcu_read_unlock(); |
| return chan; |
| } |
| #endif /* CONFIG_NET_DMA */ |
| #endif /* NETDMA_H */ |
