linux/drivers/net/wireless/ath/ath9k/dynack.h

/*
 * Copyright (c) 2014, Lorenzo Bianconi <[email protected]>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef DYNACK_H
#define DYNACK_H

#define ATH_DYN_BUF …

struct ath_hw;
struct ath_node;

/**
 * struct ath_dyn_rxbuf - ACK frame ring buffer
 * @h_rb: ring buffer head
 * @t_rb: ring buffer tail
 * @tstamp: ACK RX timestamp buffer
 */
struct ath_dyn_rxbuf { … };

struct ts_info { … };

struct haddr_pair { … };

/**
 * struct ath_dyn_txbuf - tx frame ring buffer
 * @h_rb: ring buffer head
 * @t_rb: ring buffer tail
 * @addr: dest/src address pair for a given TX frame
 * @ts: TX frame timestamp buffer
 */
struct ath_dyn_txbuf { … };

/**
 * struct ath_dynack - dynack processing info
 * @enabled: enable dyn ack processing
 * @ackto: current ACK timeout
 * @lto: last ACK timeout computation
 * @nodes: ath_node linked list
 * @qlock: ts queue spinlock
 * @ack_rbf: ACK ts ring buffer
 * @st_rbf: status ts ring buffer
 */
struct ath_dynack { … };

#if defined(CONFIG_ATH9K_DYNACK)
void ath_dynack_reset(struct ath_hw *ah);
void ath_dynack_node_init(struct ath_hw *ah, struct ath_node *an);
void ath_dynack_node_deinit(struct ath_hw *ah, struct ath_node *an);
void ath_dynack_init(struct ath_hw *ah);
void ath_dynack_sample_ack_ts(struct ath_hw *ah, struct sk_buff *skb, u32 ts);
void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
			     struct ath_tx_status *ts,
			     struct ieee80211_sta *sta);
#else
static inline void ath_dynack_init(struct ath_hw *ah) {}
static inline void ath_dynack_node_init(struct ath_hw *ah,
					struct ath_node *an) {}
static inline void ath_dynack_node_deinit(struct ath_hw *ah,
					  struct ath_node *an) {}
static inline void ath_dynack_sample_ack_ts(struct ath_hw *ah,
					    struct sk_buff *skb, u32 ts) {}
static inline void ath_dynack_sample_tx_ts(struct ath_hw *ah,
					   struct sk_buff *skb,
					   struct ath_tx_status *ts,
					   struct ieee80211_sta *sta) {}
#endif

#endif /* DYNACK_H */