drivers/net/wireless/mwifiex/11n_rxreorder.h

   1 /*
   2  * Marvell Wireless LAN device driver: 802.11n RX Re-ordering
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. 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_11N_RXREORDER_H_
  21 #define _MWIFIEX_11N_RXREORDER_H_
  22
  23 #define MIN_FLUSH_TIMER_MS              50
  24 #define MIN_FLUSH_TIMER_15_MS           15
  25 #define MWIFIEX_BA_WIN_SIZE_32          32
  26
  27 #define PKT_TYPE_BAR 0xE7
  28 #define MAX_TID_VALUE                   (2 << 11)
  29 #define TWOPOW11                        (2 << 10)
  30
  31 #define BLOCKACKPARAM_TID_POS           2
  32 #define BLOCKACKPARAM_AMSDU_SUPP_MASK   0x1
  33 #define BLOCKACKPARAM_WINSIZE_POS       6
  34 #define DELBA_TID_POS                   12
  35 #define DELBA_INITIATOR_POS             11
  36 #define TYPE_DELBA_SENT                 1
  37 #define TYPE_DELBA_RECEIVE              2
  38 #define IMMEDIATE_BLOCK_ACK             0x2
  39
  40 #define ADDBA_RSP_STATUS_ACCEPT 0
  41
  42 #define MWIFIEX_DEF_11N_RX_SEQ_NUM      0xffff
  43 #define BA_SETUP_MAX_PACKET_THRESHOLD   16
  44 #define BA_SETUP_PACKET_OFFSET          16
  45
  46 enum mwifiex_rxreor_flags {
  47         RXREOR_FORCE_NO_DROP            = 1<<0,
  48         RXREOR_INIT_WINDOW_SHIFT        = 1<<1,
  49 };
  50
  51 static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv)
  52 {
  53         memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq));
  54 }
  55
  56 int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *,
  57                                u16 seqNum,
  58                                u16 tid, u8 *ta,
  59                                u8 pkttype, void *payload);
  60 void mwifiex_del_ba_tbl(struct mwifiex_private *priv, int Tid,
  61                         u8 *PeerMACAddr, u8 type, int initiator);
  62 void mwifiex_11n_ba_stream_timeout(struct mwifiex_private *priv,
  63                                    struct host_cmd_ds_11n_batimeout *event);
  64 int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv,
  65                                struct host_cmd_ds_command
  66                                *resp);
  67 int mwifiex_cmd_11n_delba(struct host_cmd_ds_command *cmd,
  68                           void *data_buf);
  69 int mwifiex_cmd_11n_addba_rsp_gen(struct mwifiex_private *priv,
  70                                   struct host_cmd_ds_command *cmd,
  71                                   struct host_cmd_ds_11n_addba_req
  72                                   *cmd_addba_req);
  73 int mwifiex_cmd_11n_addba_req(struct host_cmd_ds_command *cmd,
  74                               void *data_buf);
  75 void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv);
  76 struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct
  77                                                            mwifiex_private
  78                                                            *priv, int tid,
  79                                                            u8 *ta);
  80 struct mwifiex_rx_reorder_tbl *
  81 mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta);
  82 void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta);
  83 void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags);
  84
  85 #endif /* _MWIFIEX_11N_RXREORDER_H_ */