drivers/net/wireless/mwifiex/wmm.h

   1 /*
   2  * Marvell Wireless LAN device driver: WMM
   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_WMM_H_
  21 #define _MWIFIEX_WMM_H_
  22
  23 enum ieee_types_wmm_aciaifsn_bitmasks {
  24         MWIFIEX_AIFSN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
  25         MWIFIEX_ACM = BIT(4),
  26         MWIFIEX_ACI = (BIT(5) | BIT(6)),
  27 };
  28
  29 enum ieee_types_wmm_ecw_bitmasks {
  30         MWIFIEX_ECW_MIN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
  31         MWIFIEX_ECW_MAX = (BIT(4) | BIT(5) | BIT(6) | BIT(7)),
  32 };
  33
  34 static const u16 mwifiex_1d_to_wmm_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
  35
  36 /*
  37  * This table inverses the tos_to_tid operation to get a priority
  38  * which is in sequential order, and can be compared.
  39  * Use this to compare the priority of two different TIDs.
  40  */
  41 static const u8 tos_to_tid_inv[] = {
  42         0x02,  /* from tos_to_tid[2] = 0 */
  43         0x00,  /* from tos_to_tid[0] = 1 */
  44         0x01,  /* from tos_to_tid[1] = 2 */
  45         0x03,
  46         0x04,
  47         0x05,
  48         0x06,
  49         0x07};
  50
  51 /*
  52  * This function retrieves the TID of the given RA list.
  53  */
  54 static inline int
  55 mwifiex_get_tid(struct mwifiex_ra_list_tbl *ptr)
  56 {
  57         struct sk_buff *skb;
  58
  59         if (skb_queue_empty(&ptr->skb_head))
  60                 return 0;
  61
  62         skb = skb_peek(&ptr->skb_head);
  63
  64         return skb->priority;
  65 }
  66
  67 /*
  68  * This function gets the length of a list.
  69  */
  70 static inline int
  71 mwifiex_wmm_list_len(struct list_head *head)
  72 {
  73         struct list_head *pos;
  74         int count = 0;
  75
  76         list_for_each(pos, head)
  77                 ++count;
  78
  79         return count;
  80 }
  81
  82 /*
  83  * This function checks if a RA list is empty or not.
  84  */
  85 static inline u8
  86 mwifiex_wmm_is_ra_list_empty(struct list_head *ra_list_hhead)
  87 {
  88         struct mwifiex_ra_list_tbl *ra_list;
  89         int is_list_empty;
  90
  91         list_for_each_entry(ra_list, ra_list_hhead, list) {
  92                 is_list_empty = skb_queue_empty(&ra_list->skb_head);
  93                 if (!is_list_empty)
  94                         return false;
  95         }
  96
  97         return true;
  98 }
  99
 100 void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 101                                  struct sk_buff *skb);
 102 void mwifiex_wmm_add_buf_bypass_txqueue(struct mwifiex_private *priv,
 103                                         struct sk_buff *skb);
 104 void mwifiex_ralist_add(struct mwifiex_private *priv, const u8 *ra);
 105 void mwifiex_rotate_priolists(struct mwifiex_private *priv,
 106                               struct mwifiex_ra_list_tbl *ra, int tid);
 107
 108 int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);
 109 int mwifiex_bypass_txlist_empty(struct mwifiex_adapter *adapter);
 110 void mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter);
 111 void mwifiex_process_bypass_tx(struct mwifiex_adapter *adapter);
 112 int mwifiex_is_ralist_valid(struct mwifiex_private *priv,
 113                             struct mwifiex_ra_list_tbl *ra_list, int tid);
 114
 115 u8 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
 116                                      const struct sk_buff *skb);
 117 void mwifiex_wmm_init(struct mwifiex_adapter *adapter);
 118
 119 u32 mwifiex_wmm_process_association_req(struct mwifiex_private *priv,
 120                                         u8 **assoc_buf,
 121                                         struct ieee_types_wmm_parameter *wmmie,
 122                                         struct ieee80211_ht_cap *htcap);
 123
 124 void mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
 125                                         struct ieee_types_wmm_parameter *wmm_ie);
 126 void mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv);
 127 int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 128                                const struct host_cmd_ds_command *resp);
 129 struct mwifiex_ra_list_tbl *
 130 mwifiex_wmm_get_queue_raptr(struct mwifiex_private *priv, u8 tid,
 131                             const u8 *ra_addr);
 132 u8 mwifiex_wmm_downgrade_tid(struct mwifiex_private *priv, u32 tid);
 133 void mwifiex_update_ralist_tx_pause(struct mwifiex_private *priv, u8 *mac,
 134                                     u8 tx_pause);
 135 void mwifiex_update_ralist_tx_pause_in_tdls_cs(struct mwifiex_private *priv,
 136                                                u8 *mac, u8 tx_pause);
 137
 138 struct mwifiex_ra_list_tbl *mwifiex_wmm_get_ralist_node(struct mwifiex_private
 139                                         *priv, u8 tid, const u8 *ra_addr);
 140 #endif /* !_MWIFIEX_WMM_H_ */