cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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txrx.h (3133B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
      4 *
      5 * Copyright (c) 2010, ST-Ericsson
      6 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
      7 */
      8
      9#ifndef CW1200_TXRX_H
     10#define CW1200_TXRX_H
     11
     12#include <linux/list.h>
     13
     14/* extern */ struct ieee80211_hw;
     15/* extern */ struct sk_buff;
     16/* extern */ struct wsm_tx;
     17/* extern */ struct wsm_rx;
     18/* extern */ struct wsm_tx_confirm;
     19/* extern */ struct cw1200_txpriv;
     20
     21struct tx_policy {
     22	union {
     23		__le32 tbl[3];
     24		u8 raw[12];
     25	};
     26	u8  defined;
     27	u8  usage_count;
     28	u8  retry_count;
     29	u8  uploaded;
     30};
     31
     32struct tx_policy_cache_entry {
     33	struct tx_policy policy;
     34	struct list_head link;
     35};
     36
     37#define TX_POLICY_CACHE_SIZE	(8)
     38struct tx_policy_cache {
     39	struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
     40	struct list_head used;
     41	struct list_head free;
     42	spinlock_t lock; /* Protect policy cache */
     43};
     44
     45/* ******************************************************************** */
     46/* TX policy cache							*/
     47/* Intention of TX policy cache is an overcomplicated WSM API.
     48 * Device does not accept per-PDU tx retry sequence.
     49 * It uses "tx retry policy id" instead, so driver code has to sync
     50 * linux tx retry sequences with a retry policy table in the device.
     51 */
     52void tx_policy_init(struct cw1200_common *priv);
     53void tx_policy_upload_work(struct work_struct *work);
     54void tx_policy_clean(struct cw1200_common *priv);
     55
     56/* ******************************************************************** */
     57/* TX implementation							*/
     58
     59u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
     60			       u32 rates);
     61void cw1200_tx(struct ieee80211_hw *dev,
     62	       struct ieee80211_tx_control *control,
     63	       struct sk_buff *skb);
     64void cw1200_skb_dtor(struct cw1200_common *priv,
     65		     struct sk_buff *skb,
     66		     const struct cw1200_txpriv *txpriv);
     67
     68/* ******************************************************************** */
     69/* WSM callbacks							*/
     70
     71void cw1200_tx_confirm_cb(struct cw1200_common *priv,
     72			  int link_id,
     73			  struct wsm_tx_confirm *arg);
     74void cw1200_rx_cb(struct cw1200_common *priv,
     75		  struct wsm_rx *arg,
     76		  int link_id,
     77		  struct sk_buff **skb_p);
     78
     79/* ******************************************************************** */
     80/* Timeout								*/
     81
     82void cw1200_tx_timeout(struct work_struct *work);
     83
     84/* ******************************************************************** */
     85/* Security								*/
     86int cw1200_alloc_key(struct cw1200_common *priv);
     87void cw1200_free_key(struct cw1200_common *priv, int idx);
     88void cw1200_free_keys(struct cw1200_common *priv);
     89int cw1200_upload_keys(struct cw1200_common *priv);
     90
     91/* ******************************************************************** */
     92/* Workaround for WFD test case 6.1.10					*/
     93void cw1200_link_id_reset(struct work_struct *work);
     94
     95#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
     96
     97int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
     98int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
     99void cw1200_link_id_work(struct work_struct *work);
    100void cw1200_link_id_gc_work(struct work_struct *work);
    101
    102
    103#endif /* CW1200_TXRX_H */