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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Datapath implementation.
*
* Copyright (c) 2017-2019, Silicon Laboratories, Inc.
* Copyright (c) 2010, ST-Ericsson
*/
#ifndef WFX_DATA_TX_H
#define WFX_DATA_TX_H
#include <linux/list.h>
#include <net/mac80211.h>
#include "hif_api_cmd.h"
#include "hif_api_mib.h"
// FIXME: use IEEE80211_NUM_TIDS
#define WFX_MAX_TID 8
struct wfx_tx_priv;
struct wfx_dev;
struct wfx_vif;
enum wfx_link_status {
WFX_LINK_OFF,
WFX_LINK_RESERVE,
WFX_LINK_SOFT,
WFX_LINK_HARD,
};
struct wfx_link_entry {
unsigned long timestamp;
enum wfx_link_status status;
u8 mac[ETH_ALEN];
u8 old_mac[ETH_ALEN];
u8 buffered[WFX_MAX_TID];
struct sk_buff_head rx_queue;
};
struct tx_policy {
struct list_head link;
int usage_count;
u8 rates[12];
bool uploaded;
};
struct tx_policy_cache {
struct tx_policy cache[HIF_MIB_NUM_TX_RATE_RETRY_POLICIES];
// FIXME: use a trees and drop hash from tx_policy
struct list_head used;
struct list_head free;
spinlock_t lock;
};
struct wfx_tx_priv {
ktime_t xmit_timestamp;
struct ieee80211_key_conf *hw_key;
u8 link_id;
u8 raw_link_id;
u8 tid;
} __packed;
void wfx_tx_policy_init(struct wfx_vif *wvif);
void wfx_tx_policy_upload_work(struct work_struct *work);
void wfx_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
struct sk_buff *skb);
void wfx_tx_confirm_cb(struct wfx_vif *wvif, struct hif_cnf_tx *arg);
void wfx_skb_dtor(struct wfx_dev *wdev, struct sk_buff *skb);
int wfx_unmap_link(struct wfx_vif *wvif, int link_id);
void wfx_link_id_work(struct work_struct *work);
void wfx_link_id_gc_work(struct work_struct *work);
int wfx_find_link_id(struct wfx_vif *wvif, const u8 *mac);
static inline struct wfx_tx_priv *wfx_skb_tx_priv(struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info;
if (!skb)
return NULL;
tx_info = IEEE80211_SKB_CB(skb);
return (struct wfx_tx_priv *)tx_info->rate_driver_data;
}
static inline struct hif_req_tx *wfx_skb_txreq(struct sk_buff *skb)
{
struct hif_msg *hif = (struct hif_msg *)skb->data;
struct hif_req_tx *req = (struct hif_req_tx *) hif->body;
return req;
}
#endif /* WFX_DATA_TX_H */
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