LXR linux/drivers/net/wireless/marvell/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
  23enum 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
  29enum 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
  34static 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 */
  41static 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 */
  54static inline int
  55mwifiex_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 */
  70static inline int
  71mwifiex_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 */
  85static inline u8
  86mwifiex_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
 100void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 101                                 struct sk_buff *skb);
 102void mwifiex_wmm_add_buf_bypass_txqueue(struct mwifiex_private *priv,
 103                                        struct sk_buff *skb);
 104void mwifiex_ralist_add(struct mwifiex_private *priv, const u8 *ra);
 105void mwifiex_rotate_priolists(struct mwifiex_private *priv,
 106                              struct mwifiex_ra_list_tbl *ra, int tid);
 107
 108int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);
 109int mwifiex_bypass_txlist_empty(struct mwifiex_adapter *adapter);
 110void mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter);
 111void mwifiex_process_bypass_tx(struct mwifiex_adapter *adapter);
 112int mwifiex_is_ralist_valid(struct mwifiex_private *priv,
 113                            struct mwifiex_ra_list_tbl *ra_list, int tid);
 114
 115u8 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
 116                                     const struct sk_buff *skb);
 117void mwifiex_wmm_init(struct mwifiex_adapter *adapter);
 118
 119u32 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
 124void mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
 125                                        struct ieee_types_wmm_parameter *wmm_ie);
 126void mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv);
 127int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 128                               const struct host_cmd_ds_command *resp);
 129struct mwifiex_ra_list_tbl *
 130mwifiex_wmm_get_queue_raptr(struct mwifiex_private *priv, u8 tid,
 131                            const u8 *ra_addr);
 132u8 mwifiex_wmm_downgrade_tid(struct mwifiex_private *priv, u32 tid);
 133void mwifiex_update_ralist_tx_pause(struct mwifiex_private *priv, u8 *mac,
 134                                    u8 tx_pause);
 135void mwifiex_update_ralist_tx_pause_in_tdls_cs(struct mwifiex_private *priv,
 136                                               u8 *mac, u8 tx_pause);
 137
 138struct 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_ */
 141