LXR linux/drivers/staging/wfx/data

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Datapath implementation.
   4 *
   5 * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
   6 * Copyright (c) 2010, ST-Ericsson
   7 */
   8#ifndef WFX_DATA_TX_H
   9#define WFX_DATA_TX_H
  10
  11#include <linux/list.h>
  12#include <net/mac80211.h>
  13
  14#include "hif_api_cmd.h"
  15#include "hif_api_mib.h"
  16
  17struct wfx_tx_priv;
  18struct wfx_dev;
  19struct wfx_vif;
  20
  21struct tx_policy {
  22        struct list_head link;
  23        int usage_count;
  24        u8 rates[12];
  25        bool uploaded;
  26};
  27
  28struct tx_policy_cache {
  29        struct tx_policy cache[HIF_TX_RETRY_POLICY_MAX];
  30        // FIXME: use a trees and drop hash from tx_policy
  31        struct list_head used;
  32        struct list_head free;
  33        spinlock_t lock;
  34};
  35
  36struct wfx_tx_priv {
  37        ktime_t xmit_timestamp;
  38        unsigned char icv_size;
  39};
  40
  41void wfx_tx_policy_init(struct wfx_vif *wvif);
  42void wfx_tx_policy_upload_work(struct work_struct *work);
  43
  44void wfx_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
  45            struct sk_buff *skb);
  46void wfx_tx_confirm_cb(struct wfx_dev *wdev, const struct hif_cnf_tx *arg);
  47void wfx_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
  48               u32 queues, bool drop);
  49
  50static inline struct wfx_tx_priv *wfx_skb_tx_priv(struct sk_buff *skb)
  51{
  52        struct ieee80211_tx_info *tx_info;
  53
  54        if (!skb)
  55                return NULL;
  56        tx_info = IEEE80211_SKB_CB(skb);
  57        return (struct wfx_tx_priv *)tx_info->rate_driver_data;
  58}
  59
  60static inline struct hif_req_tx *wfx_skb_txreq(struct sk_buff *skb)
  61{
  62        struct hif_msg *hif = (struct hif_msg *)skb->data;
  63        struct hif_req_tx *req = (struct hif_req_tx *)hif->body;
  64
  65        return req;
  66}
  67
  68#endif /* WFX_DATA_TX_H */
  69