2 * Marvell Wireless LAN device driver: utility functions
4 * Copyright (C) 2011-2014, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
20 #ifndef _MWIFIEX_UTIL_H_
21 #define _MWIFIEX_UTIL_H_
23 struct mwifiex_dma_mapping {
29 struct mwifiex_dma_mapping dma_mapping;
31 struct mwifiex_rxinfo rx_info;
32 struct mwifiex_txinfo tx_info;
36 static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb)
38 struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
40 BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb));
44 static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb)
46 struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
51 static inline void mwifiex_store_mapping(struct sk_buff *skb,
52 struct mwifiex_dma_mapping *mapping)
54 struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
56 memcpy(&cb->dma_mapping, mapping, sizeof(*mapping));
59 static inline void mwifiex_get_mapping(struct sk_buff *skb,
60 struct mwifiex_dma_mapping *mapping)
62 struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
64 memcpy(mapping, &cb->dma_mapping, sizeof(*mapping));
67 static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb)
69 struct mwifiex_dma_mapping mapping;
71 mwifiex_get_mapping(skb, &mapping);
76 #endif /* !_MWIFIEX_UTIL_H_ */