cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

util.h (2960B)

      1/*
      2 * NXP Wireless LAN device driver: utility functions
      3 *
      4 * Copyright 2011-2020 NXP
      5 *
      6 * This software file (the "File") is distributed by NXP
      7 * 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.
     13 *
     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.
     18 */
     19
     20#ifndef _MWIFIEX_UTIL_H_
     21#define _MWIFIEX_UTIL_H_
     22
     23struct mwifiex_private;
     24
     25struct mwifiex_dma_mapping {
     26	dma_addr_t addr;
     27	size_t len;
     28};
     29
     30struct mwifiex_cb {
     31	struct mwifiex_dma_mapping dma_mapping;
     32	union {
     33		struct mwifiex_rxinfo rx_info;
     34		struct mwifiex_txinfo tx_info;
     35	};
     36};
     37
     38/* size/addr for mwifiex_debug_info */
     39#define item_size(n)		(sizeof_field(struct mwifiex_debug_info, n))
     40#define item_addr(n)		(offsetof(struct mwifiex_debug_info, n))
     41
     42/* size/addr for struct mwifiex_adapter */
     43#define adapter_item_size(n)	(sizeof_field(struct mwifiex_adapter, n))
     44#define adapter_item_addr(n)	(offsetof(struct mwifiex_adapter, n))
     45
     46struct mwifiex_debug_data {
     47	char name[32];		/* variable/array name */
     48	u32 size;		/* size of the variable/array */
     49	size_t addr;		/* address of the variable/array */
     50	int num;		/* number of variables in an array */
     51};
     52
     53static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb)
     54{
     55	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
     56
     57	BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb));
     58	return &cb->rx_info;
     59}
     60
     61static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb)
     62{
     63	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
     64
     65	return &cb->tx_info;
     66}
     67
     68static inline void mwifiex_store_mapping(struct sk_buff *skb,
     69					 struct mwifiex_dma_mapping *mapping)
     70{
     71	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
     72
     73	memcpy(&cb->dma_mapping, mapping, sizeof(*mapping));
     74}
     75
     76static inline void mwifiex_get_mapping(struct sk_buff *skb,
     77				       struct mwifiex_dma_mapping *mapping)
     78{
     79	struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
     80
     81	memcpy(mapping, &cb->dma_mapping, sizeof(*mapping));
     82}
     83
     84static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb)
     85{
     86	struct mwifiex_dma_mapping mapping;
     87
     88	mwifiex_get_mapping(skb, &mapping);
     89
     90	return mapping.addr;
     91}
     92
     93int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
     94				 struct mwifiex_debug_info *info);
     95
     96static inline void le16_unaligned_add_cpu(__le16 *var, u16 val)
     97{
     98	put_unaligned_le16(get_unaligned_le16(var) + val, var);
     99}
    100
    101#endif /* !_MWIFIEX_UTIL_H_ */