1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * NXP Wireless LAN device driver: 802.11n
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8 #ifndef _MWIFIEX_11N_H_
9 #define _MWIFIEX_11N_H_
10
11 #include "11n_aggr.h"
12 #include "11n_rxreorder.h"
13 #include "wmm.h"
14
15 int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
16 struct host_cmd_ds_command *resp);
17 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
18 struct host_cmd_ds_command *resp);
19 int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
20 struct host_cmd_ds_command *cmd, u16 cmd_action,
21 struct mwifiex_ds_11n_tx_cfg *txcfg);
22 int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
23 struct mwifiex_bssdescriptor *bss_desc,
24 u8 **buffer);
25 int mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
26 struct ieee80211_ht_cap *);
27 int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
28 u16 action, int *htcap_cfg);
29 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
30 struct mwifiex_tx_ba_stream_tbl
31 *tx_tbl);
32 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
33 struct mwifiex_tx_ba_stream_tbl *mwifiex_get_ba_tbl(struct
34 mwifiex_private
35 *priv, int tid,
36 u8 *ra);
37 void mwifiex_create_ba_tbl(struct mwifiex_private *priv, u8 *ra, int tid,
38 enum mwifiex_ba_status ba_status);
39 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
40 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
41 int initiator);
42 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
43 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
44 struct mwifiex_ds_rx_reorder_tbl *buf);
45 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
46 struct mwifiex_ds_tx_ba_stream_tbl *buf);
47 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
48 struct host_cmd_ds_command *cmd,
49 int cmd_action, u16 *buf_size);
50 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
51 int cmd_action,
52 struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
53 void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra);
54 u8 mwifiex_get_sec_chan_offset(int chan);
55
56 static inline u8
mwifiex_is_station_ampdu_allowed(struct mwifiex_private * priv,struct mwifiex_ra_list_tbl * ptr,int tid)57 mwifiex_is_station_ampdu_allowed(struct mwifiex_private *priv,
58 struct mwifiex_ra_list_tbl *ptr, int tid)
59 {
60 struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ptr->ra);
61
62 if (unlikely(!node))
63 return false;
64
65 return (node->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ? true : false;
66 }
67
68 /* This function checks whether AMPDU is allowed or not for a particular TID. */
69 static inline u8
mwifiex_is_ampdu_allowed(struct mwifiex_private * priv,struct mwifiex_ra_list_tbl * ptr,int tid)70 mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
71 struct mwifiex_ra_list_tbl *ptr, int tid)
72 {
73 if (is_broadcast_ether_addr(ptr->ra))
74 return false;
75 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
76 return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
77 } else {
78 if (ptr->tdls_link)
79 return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
80
81 return (priv->aggr_prio_tbl[tid].ampdu_ap !=
82 BA_STREAM_NOT_ALLOWED) ? true : false;
83 }
84 }
85
86 /*
87 * This function checks whether AMSDU is allowed or not for a particular TID.
88 */
89 static inline u8
mwifiex_is_amsdu_allowed(struct mwifiex_private * priv,int tid)90 mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
91 {
92 return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
93 (priv->is_data_rate_auto || !(priv->bitmap_rates[2] & 0x03)))
94 ? true : false);
95 }
96
97 /*
98 * This function checks whether a space is available for new BA stream or not.
99 */
mwifiex_space_avail_for_new_ba_stream(struct mwifiex_adapter * adapter)100 static inline u8 mwifiex_space_avail_for_new_ba_stream(
101 struct mwifiex_adapter *adapter)
102 {
103 struct mwifiex_private *priv;
104 u8 i;
105 size_t ba_stream_num = 0, ba_stream_max;
106
107 ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;
108
109 for (i = 0; i < adapter->priv_num; i++) {
110 priv = adapter->priv[i];
111 if (priv)
112 ba_stream_num += list_count_nodes(
113 &priv->tx_ba_stream_tbl_ptr);
114 }
115
116 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
117 ba_stream_max =
118 GETSUPP_TXBASTREAMS(adapter->hw_dot_11n_dev_cap);
119 if (!ba_stream_max)
120 ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;
121 }
122
123 return ((ba_stream_num < ba_stream_max) ? true : false);
124 }
125
126 /*
127 * This function finds the correct Tx BA stream to delete.
128 *
129 * Upon successfully locating, both the TID and the RA are returned.
130 */
131 static inline u8
mwifiex_find_stream_to_delete(struct mwifiex_private * priv,int ptr_tid,int * ptid,u8 * ra)132 mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
133 int *ptid, u8 *ra)
134 {
135 int tid;
136 u8 ret = false;
137 struct mwifiex_tx_ba_stream_tbl *tx_tbl;
138
139 tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
140
141 spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
142 list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
143 if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
144 tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
145 *ptid = tx_tbl->tid;
146 memcpy(ra, tx_tbl->ra, ETH_ALEN);
147 ret = true;
148 }
149 }
150 spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
151
152 return ret;
153 }
154
155 /*
156 * This function checks whether associated station is 11n enabled
157 */
mwifiex_is_sta_11n_enabled(struct mwifiex_private * priv,struct mwifiex_sta_node * node)158 static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
159 struct mwifiex_sta_node *node)
160 {
161 if (!node || ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP) &&
162 !priv->ap_11n_enabled) ||
163 ((priv->bss_mode == NL80211_IFTYPE_ADHOC) &&
164 !priv->adapter->adhoc_11n_enabled))
165 return 0;
166
167 return node->is_11n_enabled;
168 }
169
170 static inline u8
mwifiex_tdls_peer_11n_enabled(struct mwifiex_private * priv,const u8 * ra)171 mwifiex_tdls_peer_11n_enabled(struct mwifiex_private *priv, const u8 *ra)
172 {
173 struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ra);
174 if (node)
175 return node->is_11n_enabled;
176
177 return false;
178 }
179 #endif /* !_MWIFIEX_11N_H_ */
180
