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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: 802.11n | |
3 | * | |
4 | * Copyright (C) 2011, 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 | #include "decl.h" | |
21 | #include "ioctl.h" | |
22 | #include "util.h" | |
23 | #include "fw.h" | |
24 | #include "main.h" | |
25 | #include "wmm.h" | |
26 | #include "11n.h" | |
27 | ||
28 | /* | |
29 | * Fills HT capability information field, AMPDU Parameters field, HT extended | |
30 | * capability field, and supported MCS set fields. | |
31 | * | |
a46b7b5c AK |
32 | * HT capability information field, AMPDU Parameters field, supported MCS set |
33 | * fields are retrieved from cfg80211 stack | |
5e6e3a92 | 34 | * |
a46b7b5c | 35 | * RD responder bit to set to clear in the extended capability header. |
5e6e3a92 BZ |
36 | */ |
37 | void | |
a46b7b5c | 38 | mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type, |
5e6e3a92 BZ |
39 | struct mwifiex_ie_types_htcap *ht_cap) |
40 | { | |
5e6e3a92 | 41 | uint16_t ht_ext_cap = le16_to_cpu(ht_cap->ht_cap.extended_ht_cap_info); |
a46b7b5c AK |
42 | struct ieee80211_supported_band *sband = |
43 | priv->wdev->wiphy->bands[radio_type]; | |
5e6e3a92 | 44 | |
a46b7b5c AK |
45 | ht_cap->ht_cap.ampdu_params_info = |
46 | (sband->ht_cap.ampdu_factor & | |
84266841 | 47 | IEEE80211_HT_AMPDU_PARM_FACTOR) | |
a46b7b5c AK |
48 | ((sband->ht_cap.ampdu_density << |
49 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT) & | |
50 | IEEE80211_HT_AMPDU_PARM_DENSITY); | |
5e6e3a92 | 51 | |
a46b7b5c | 52 | memcpy((u8 *) &ht_cap->ht_cap.mcs, &sband->ht_cap.mcs, |
84266841 | 53 | sizeof(sband->ht_cap.mcs)); |
5e6e3a92 | 54 | |
eecd8250 | 55 | if (priv->bss_mode == NL80211_IFTYPE_STATION || |
d35f1035 AK |
56 | (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
57 | (priv->adapter->sec_chan_offset != | |
58 | IEEE80211_HT_PARAM_CHA_SEC_NONE))) | |
5e6e3a92 BZ |
59 | /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ |
60 | SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask); | |
61 | ||
62 | /* Clear RD responder bit */ | |
a3731658 | 63 | ht_ext_cap &= ~IEEE80211_HT_EXT_CAP_RD_RESPONDER; |
5e6e3a92 | 64 | |
a46b7b5c | 65 | ht_cap->ht_cap.cap_info = cpu_to_le16(sband->ht_cap.cap); |
5e6e3a92 BZ |
66 | ht_cap->ht_cap.extended_ht_cap_info = cpu_to_le16(ht_ext_cap); |
67 | } | |
68 | ||
5e6e3a92 BZ |
69 | /* |
70 | * This function returns the pointer to an entry in BA Stream | |
71 | * table which matches the requested BA status. | |
72 | */ | |
73 | static struct mwifiex_tx_ba_stream_tbl * | |
3e822635 YAP |
74 | mwifiex_get_ba_status(struct mwifiex_private *priv, |
75 | enum mwifiex_ba_status ba_status) | |
5e6e3a92 BZ |
76 | { |
77 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; | |
78 | unsigned long flags; | |
79 | ||
80 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
81 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { | |
82 | if (tx_ba_tsr_tbl->ba_status == ba_status) { | |
83 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, | |
84 | flags); | |
85 | return tx_ba_tsr_tbl; | |
86 | } | |
87 | } | |
88 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
89 | return NULL; | |
90 | } | |
91 | ||
92 | /* | |
93 | * This function handles the command response of delete a block | |
94 | * ack request. | |
95 | * | |
96 | * The function checks the response success status and takes action | |
97 | * accordingly (send an add BA request in case of success, or recreate | |
98 | * the deleted stream in case of failure, if the add BA was also | |
99 | * initiated by us). | |
100 | */ | |
101 | int mwifiex_ret_11n_delba(struct mwifiex_private *priv, | |
102 | struct host_cmd_ds_command *resp) | |
103 | { | |
104 | int tid; | |
105 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl; | |
2c208890 | 106 | struct host_cmd_ds_11n_delba *del_ba = &resp->params.del_ba; |
5e6e3a92 BZ |
107 | uint16_t del_ba_param_set = le16_to_cpu(del_ba->del_ba_param_set); |
108 | ||
109 | tid = del_ba_param_set >> DELBA_TID_POS; | |
110 | if (del_ba->del_result == BA_RESULT_SUCCESS) { | |
3e822635 YAP |
111 | mwifiex_del_ba_tbl(priv, tid, del_ba->peer_mac_addr, |
112 | TYPE_DELBA_SENT, | |
113 | INITIATOR_BIT(del_ba_param_set)); | |
5e6e3a92 | 114 | |
3e822635 | 115 | tx_ba_tbl = mwifiex_get_ba_status(priv, BA_SETUP_INPROGRESS); |
5e6e3a92 BZ |
116 | if (tx_ba_tbl) |
117 | mwifiex_send_addba(priv, tx_ba_tbl->tid, | |
118 | tx_ba_tbl->ra); | |
119 | } else { /* | |
120 | * In case of failure, recreate the deleted stream in case | |
121 | * we initiated the ADDBA | |
122 | */ | |
3e822635 YAP |
123 | if (!INITIATOR_BIT(del_ba_param_set)) |
124 | return 0; | |
125 | ||
126 | mwifiex_create_ba_tbl(priv, del_ba->peer_mac_addr, tid, | |
127 | BA_SETUP_INPROGRESS); | |
128 | ||
129 | tx_ba_tbl = mwifiex_get_ba_status(priv, BA_SETUP_INPROGRESS); | |
130 | ||
131 | if (tx_ba_tbl) | |
132 | mwifiex_del_ba_tbl(priv, tx_ba_tbl->tid, tx_ba_tbl->ra, | |
133 | TYPE_DELBA_SENT, true); | |
5e6e3a92 BZ |
134 | } |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
139 | /* | |
140 | * This function handles the command response of add a block | |
141 | * ack request. | |
142 | * | |
143 | * Handling includes changing the header fields to CPU formats, checking | |
144 | * the response success status and taking actions accordingly (delete the | |
145 | * BA stream table in case of failure). | |
146 | */ | |
147 | int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv, | |
148 | struct host_cmd_ds_command *resp) | |
149 | { | |
150 | int tid; | |
2c208890 | 151 | struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = &resp->params.add_ba_rsp; |
5e6e3a92 BZ |
152 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl; |
153 | ||
154 | add_ba_rsp->ssn = cpu_to_le16((le16_to_cpu(add_ba_rsp->ssn)) | |
155 | & SSN_MASK); | |
156 | ||
157 | tid = (le16_to_cpu(add_ba_rsp->block_ack_param_set) | |
158 | & IEEE80211_ADDBA_PARAM_TID_MASK) | |
159 | >> BLOCKACKPARAM_TID_POS; | |
160 | if (le16_to_cpu(add_ba_rsp->status_code) == BA_RESULT_SUCCESS) { | |
3e822635 | 161 | tx_ba_tbl = mwifiex_get_ba_tbl(priv, tid, |
5e6e3a92 BZ |
162 | add_ba_rsp->peer_mac_addr); |
163 | if (tx_ba_tbl) { | |
164 | dev_dbg(priv->adapter->dev, "info: BA stream complete\n"); | |
3e822635 | 165 | tx_ba_tbl->ba_status = BA_SETUP_COMPLETE; |
5e6e3a92 BZ |
166 | } else { |
167 | dev_err(priv->adapter->dev, "BA stream not created\n"); | |
168 | } | |
169 | } else { | |
3e822635 YAP |
170 | mwifiex_del_ba_tbl(priv, tid, add_ba_rsp->peer_mac_addr, |
171 | TYPE_DELBA_SENT, true); | |
5e6e3a92 BZ |
172 | if (add_ba_rsp->add_rsp_result != BA_RESULT_TIMEOUT) |
173 | priv->aggr_prio_tbl[tid].ampdu_ap = | |
174 | BA_STREAM_NOT_ALLOWED; | |
175 | } | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
5e6e3a92 BZ |
180 | /* |
181 | * This function prepares command of reconfigure Tx buffer. | |
182 | * | |
183 | * Preparation includes - | |
184 | * - Setting command ID, action and proper size | |
185 | * - Setting Tx buffer size (for SET only) | |
186 | * - Ensuring correct endian-ness | |
187 | */ | |
188 | int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv, | |
189 | struct host_cmd_ds_command *cmd, int cmd_action, | |
a5ffddb7 | 190 | u16 *buf_size) |
5e6e3a92 BZ |
191 | { |
192 | struct host_cmd_ds_txbuf_cfg *tx_buf = &cmd->params.tx_buf; | |
193 | u16 action = (u16) cmd_action; | |
5e6e3a92 BZ |
194 | |
195 | cmd->command = cpu_to_le16(HostCmd_CMD_RECONFIGURE_TX_BUFF); | |
196 | cmd->size = | |
197 | cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg) + S_DS_GEN); | |
198 | tx_buf->action = cpu_to_le16(action); | |
199 | switch (action) { | |
200 | case HostCmd_ACT_GEN_SET: | |
a5ffddb7 AK |
201 | dev_dbg(priv->adapter->dev, "cmd: set tx_buf=%d\n", *buf_size); |
202 | tx_buf->buff_size = cpu_to_le16(*buf_size); | |
5e6e3a92 BZ |
203 | break; |
204 | case HostCmd_ACT_GEN_GET: | |
205 | default: | |
206 | tx_buf->buff_size = 0; | |
207 | break; | |
208 | } | |
209 | return 0; | |
210 | } | |
211 | ||
212 | /* | |
213 | * This function prepares command of AMSDU aggregation control. | |
214 | * | |
215 | * Preparation includes - | |
216 | * - Setting command ID, action and proper size | |
217 | * - Setting AMSDU control parameters (for SET only) | |
218 | * - Ensuring correct endian-ness | |
219 | */ | |
572e8f3e | 220 | int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd, |
a5ffddb7 AK |
221 | int cmd_action, |
222 | struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl) | |
5e6e3a92 BZ |
223 | { |
224 | struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl = | |
225 | &cmd->params.amsdu_aggr_ctrl; | |
226 | u16 action = (u16) cmd_action; | |
5e6e3a92 BZ |
227 | |
228 | cmd->command = cpu_to_le16(HostCmd_CMD_AMSDU_AGGR_CTRL); | |
229 | cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl) | |
230 | + S_DS_GEN); | |
231 | amsdu_ctrl->action = cpu_to_le16(action); | |
232 | switch (action) { | |
233 | case HostCmd_ACT_GEN_SET: | |
234 | amsdu_ctrl->enable = cpu_to_le16(aa_ctrl->enable); | |
235 | amsdu_ctrl->curr_buf_size = 0; | |
236 | break; | |
237 | case HostCmd_ACT_GEN_GET: | |
238 | default: | |
239 | amsdu_ctrl->curr_buf_size = 0; | |
240 | break; | |
241 | } | |
242 | return 0; | |
243 | } | |
244 | ||
5e6e3a92 BZ |
245 | /* |
246 | * This function prepares 11n configuration command. | |
247 | * | |
248 | * Preparation includes - | |
249 | * - Setting command ID, action and proper size | |
250 | * - Setting HT Tx capability and HT Tx information fields | |
251 | * - Ensuring correct endian-ness | |
252 | */ | |
a5f39056 YAP |
253 | int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv, |
254 | struct host_cmd_ds_command *cmd, u16 cmd_action, | |
a5ffddb7 | 255 | struct mwifiex_ds_11n_tx_cfg *txcfg) |
5e6e3a92 BZ |
256 | { |
257 | struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg; | |
5e6e3a92 BZ |
258 | |
259 | cmd->command = cpu_to_le16(HostCmd_CMD_11N_CFG); | |
260 | cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg) + S_DS_GEN); | |
261 | htcfg->action = cpu_to_le16(cmd_action); | |
262 | htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap); | |
263 | htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo); | |
a5f39056 YAP |
264 | |
265 | if (priv->adapter->is_hw_11ac_capable) | |
266 | htcfg->misc_config = cpu_to_le16(txcfg->misc_config); | |
267 | ||
5e6e3a92 BZ |
268 | return 0; |
269 | } | |
270 | ||
271 | /* | |
272 | * This function appends an 11n TLV to a buffer. | |
273 | * | |
274 | * Buffer allocation is responsibility of the calling | |
275 | * function. No size validation is made here. | |
276 | * | |
277 | * The function fills up the following sections, if applicable - | |
278 | * - HT capability IE | |
279 | * - HT information IE (with channel list) | |
280 | * - 20/40 BSS Coexistence IE | |
281 | * - HT Extended Capabilities IE | |
282 | */ | |
283 | int | |
284 | mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv, | |
285 | struct mwifiex_bssdescriptor *bss_desc, | |
286 | u8 **buffer) | |
287 | { | |
288 | struct mwifiex_ie_types_htcap *ht_cap; | |
289 | struct mwifiex_ie_types_htinfo *ht_info; | |
290 | struct mwifiex_ie_types_chan_list_param_set *chan_list; | |
291 | struct mwifiex_ie_types_2040bssco *bss_co_2040; | |
292 | struct mwifiex_ie_types_extcap *ext_cap; | |
293 | int ret_len = 0; | |
a46b7b5c AK |
294 | struct ieee80211_supported_band *sband; |
295 | u8 radio_type; | |
5e6e3a92 BZ |
296 | |
297 | if (!buffer || !*buffer) | |
298 | return ret_len; | |
299 | ||
a46b7b5c AK |
300 | radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band); |
301 | sband = priv->wdev->wiphy->bands[radio_type]; | |
302 | ||
5e6e3a92 BZ |
303 | if (bss_desc->bcn_ht_cap) { |
304 | ht_cap = (struct mwifiex_ie_types_htcap *) *buffer; | |
305 | memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap)); | |
306 | ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); | |
307 | ht_cap->header.len = | |
308 | cpu_to_le16(sizeof(struct ieee80211_ht_cap)); | |
309 | memcpy((u8 *) ht_cap + sizeof(struct mwifiex_ie_types_header), | |
310 | (u8 *) bss_desc->bcn_ht_cap + | |
311 | sizeof(struct ieee_types_header), | |
312 | le16_to_cpu(ht_cap->header.len)); | |
313 | ||
a46b7b5c | 314 | mwifiex_fill_cap_info(priv, radio_type, ht_cap); |
5e6e3a92 BZ |
315 | |
316 | *buffer += sizeof(struct mwifiex_ie_types_htcap); | |
317 | ret_len += sizeof(struct mwifiex_ie_types_htcap); | |
318 | } | |
319 | ||
074d46d1 | 320 | if (bss_desc->bcn_ht_oper) { |
eecd8250 | 321 | if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
322 | ht_info = (struct mwifiex_ie_types_htinfo *) *buffer; |
323 | memset(ht_info, 0, | |
324 | sizeof(struct mwifiex_ie_types_htinfo)); | |
325 | ht_info->header.type = | |
074d46d1 | 326 | cpu_to_le16(WLAN_EID_HT_OPERATION); |
5e6e3a92 | 327 | ht_info->header.len = |
074d46d1 JB |
328 | cpu_to_le16( |
329 | sizeof(struct ieee80211_ht_operation)); | |
5e6e3a92 BZ |
330 | |
331 | memcpy((u8 *) ht_info + | |
332 | sizeof(struct mwifiex_ie_types_header), | |
074d46d1 | 333 | (u8 *) bss_desc->bcn_ht_oper + |
5e6e3a92 BZ |
334 | sizeof(struct ieee_types_header), |
335 | le16_to_cpu(ht_info->header.len)); | |
336 | ||
a46b7b5c AK |
337 | if (!(sband->ht_cap.cap & |
338 | IEEE80211_HT_CAP_SUP_WIDTH_20_40)) | |
074d46d1 | 339 | ht_info->ht_oper.ht_param &= |
6d2bd916 MY |
340 | ~(IEEE80211_HT_PARAM_CHAN_WIDTH_ANY | |
341 | IEEE80211_HT_PARAM_CHA_SEC_OFFSET); | |
5e6e3a92 BZ |
342 | |
343 | *buffer += sizeof(struct mwifiex_ie_types_htinfo); | |
344 | ret_len += sizeof(struct mwifiex_ie_types_htinfo); | |
345 | } | |
346 | ||
347 | chan_list = | |
348 | (struct mwifiex_ie_types_chan_list_param_set *) *buffer; | |
349 | memset(chan_list, 0, | |
350 | sizeof(struct mwifiex_ie_types_chan_list_param_set)); | |
351 | chan_list->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); | |
352 | chan_list->header.len = cpu_to_le16( | |
353 | sizeof(struct mwifiex_ie_types_chan_list_param_set) - | |
354 | sizeof(struct mwifiex_ie_types_header)); | |
355 | chan_list->chan_scan_param[0].chan_number = | |
074d46d1 | 356 | bss_desc->bcn_ht_oper->primary_chan; |
5e6e3a92 BZ |
357 | chan_list->chan_scan_param[0].radio_type = |
358 | mwifiex_band_to_radio_type((u8) bss_desc->bss_band); | |
359 | ||
84266841 | 360 | if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
074d46d1 | 361 | bss_desc->bcn_ht_oper->ht_param & |
84266841 | 362 | IEEE80211_HT_PARAM_CHAN_WIDTH_ANY) |
5e6e3a92 BZ |
363 | SET_SECONDARYCHAN(chan_list->chan_scan_param[0]. |
364 | radio_type, | |
074d46d1 | 365 | (bss_desc->bcn_ht_oper->ht_param & |
6d2bd916 | 366 | IEEE80211_HT_PARAM_CHA_SEC_OFFSET)); |
5e6e3a92 BZ |
367 | |
368 | *buffer += sizeof(struct mwifiex_ie_types_chan_list_param_set); | |
369 | ret_len += sizeof(struct mwifiex_ie_types_chan_list_param_set); | |
370 | } | |
371 | ||
372 | if (bss_desc->bcn_bss_co_2040) { | |
373 | bss_co_2040 = (struct mwifiex_ie_types_2040bssco *) *buffer; | |
374 | memset(bss_co_2040, 0, | |
375 | sizeof(struct mwifiex_ie_types_2040bssco)); | |
376 | bss_co_2040->header.type = cpu_to_le16(WLAN_EID_BSS_COEX_2040); | |
377 | bss_co_2040->header.len = | |
378 | cpu_to_le16(sizeof(bss_co_2040->bss_co_2040)); | |
379 | ||
380 | memcpy((u8 *) bss_co_2040 + | |
381 | sizeof(struct mwifiex_ie_types_header), | |
2c208890 | 382 | bss_desc->bcn_bss_co_2040 + |
5e6e3a92 BZ |
383 | sizeof(struct ieee_types_header), |
384 | le16_to_cpu(bss_co_2040->header.len)); | |
385 | ||
386 | *buffer += sizeof(struct mwifiex_ie_types_2040bssco); | |
387 | ret_len += sizeof(struct mwifiex_ie_types_2040bssco); | |
388 | } | |
389 | ||
390 | if (bss_desc->bcn_ext_cap) { | |
391 | ext_cap = (struct mwifiex_ie_types_extcap *) *buffer; | |
392 | memset(ext_cap, 0, sizeof(struct mwifiex_ie_types_extcap)); | |
393 | ext_cap->header.type = cpu_to_le16(WLAN_EID_EXT_CAPABILITY); | |
394 | ext_cap->header.len = cpu_to_le16(sizeof(ext_cap->ext_cap)); | |
395 | ||
2c208890 JP |
396 | memcpy((u8 *)ext_cap + sizeof(struct mwifiex_ie_types_header), |
397 | bss_desc->bcn_ext_cap + sizeof(struct ieee_types_header), | |
5e6e3a92 BZ |
398 | le16_to_cpu(ext_cap->header.len)); |
399 | ||
400 | *buffer += sizeof(struct mwifiex_ie_types_extcap); | |
401 | ret_len += sizeof(struct mwifiex_ie_types_extcap); | |
402 | } | |
403 | ||
404 | return ret_len; | |
405 | } | |
406 | ||
5e6e3a92 BZ |
407 | /* |
408 | * This function checks if the given pointer is valid entry of | |
409 | * Tx BA Stream table. | |
410 | */ | |
411 | static int mwifiex_is_tx_ba_stream_ptr_valid(struct mwifiex_private *priv, | |
412 | struct mwifiex_tx_ba_stream_tbl *tx_tbl_ptr) | |
413 | { | |
414 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; | |
415 | ||
416 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { | |
417 | if (tx_ba_tsr_tbl == tx_tbl_ptr) | |
418 | return true; | |
419 | } | |
420 | ||
421 | return false; | |
422 | } | |
423 | ||
424 | /* | |
425 | * This function deletes the given entry in Tx BA Stream table. | |
426 | * | |
427 | * The function also performs a validity check on the supplied | |
428 | * pointer before trying to delete. | |
429 | */ | |
430 | void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv, | |
431 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl) | |
432 | { | |
433 | if (!tx_ba_tsr_tbl && | |
84266841 | 434 | mwifiex_is_tx_ba_stream_ptr_valid(priv, tx_ba_tsr_tbl)) |
5e6e3a92 BZ |
435 | return; |
436 | ||
437 | dev_dbg(priv->adapter->dev, "info: tx_ba_tsr_tbl %p\n", tx_ba_tsr_tbl); | |
438 | ||
439 | list_del(&tx_ba_tsr_tbl->list); | |
440 | ||
441 | kfree(tx_ba_tsr_tbl); | |
5e6e3a92 BZ |
442 | } |
443 | ||
444 | /* | |
445 | * This function deletes all the entries in Tx BA Stream table. | |
446 | */ | |
447 | void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv) | |
448 | { | |
449 | int i; | |
450 | struct mwifiex_tx_ba_stream_tbl *del_tbl_ptr, *tmp_node; | |
451 | unsigned long flags; | |
452 | ||
453 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
454 | list_for_each_entry_safe(del_tbl_ptr, tmp_node, | |
455 | &priv->tx_ba_stream_tbl_ptr, list) | |
456 | mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, del_tbl_ptr); | |
457 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
458 | ||
459 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); | |
460 | ||
461 | for (i = 0; i < MAX_NUM_TID; ++i) | |
462 | priv->aggr_prio_tbl[i].ampdu_ap = | |
463 | priv->aggr_prio_tbl[i].ampdu_user; | |
464 | } | |
465 | ||
466 | /* | |
467 | * This function returns the pointer to an entry in BA Stream | |
468 | * table which matches the given RA/TID pair. | |
469 | */ | |
470 | struct mwifiex_tx_ba_stream_tbl * | |
3e822635 | 471 | mwifiex_get_ba_tbl(struct mwifiex_private *priv, int tid, u8 *ra) |
5e6e3a92 BZ |
472 | { |
473 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; | |
474 | unsigned long flags; | |
475 | ||
476 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
477 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { | |
84266841 YAP |
478 | if (!memcmp(tx_ba_tsr_tbl->ra, ra, ETH_ALEN) && |
479 | tx_ba_tsr_tbl->tid == tid) { | |
5e6e3a92 BZ |
480 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, |
481 | flags); | |
482 | return tx_ba_tsr_tbl; | |
483 | } | |
484 | } | |
485 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
486 | return NULL; | |
487 | } | |
488 | ||
489 | /* | |
490 | * This function creates an entry in Tx BA stream table for the | |
491 | * given RA/TID pair. | |
492 | */ | |
3e822635 YAP |
493 | void mwifiex_create_ba_tbl(struct mwifiex_private *priv, u8 *ra, int tid, |
494 | enum mwifiex_ba_status ba_status) | |
5e6e3a92 BZ |
495 | { |
496 | struct mwifiex_tx_ba_stream_tbl *new_node; | |
497 | unsigned long flags; | |
498 | ||
3e822635 | 499 | if (!mwifiex_get_ba_tbl(priv, tid, ra)) { |
5e6e3a92 BZ |
500 | new_node = kzalloc(sizeof(struct mwifiex_tx_ba_stream_tbl), |
501 | GFP_ATOMIC); | |
0d2e7a5c | 502 | if (!new_node) |
5e6e3a92 | 503 | return; |
5e6e3a92 BZ |
504 | |
505 | INIT_LIST_HEAD(&new_node->list); | |
506 | ||
507 | new_node->tid = tid; | |
508 | new_node->ba_status = ba_status; | |
509 | memcpy(new_node->ra, ra, ETH_ALEN); | |
510 | ||
511 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
512 | list_add_tail(&new_node->list, &priv->tx_ba_stream_tbl_ptr); | |
513 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
514 | } | |
5e6e3a92 BZ |
515 | } |
516 | ||
517 | /* | |
518 | * This function sends an add BA request to the given TID/RA pair. | |
519 | */ | |
520 | int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac) | |
521 | { | |
522 | struct host_cmd_ds_11n_addba_req add_ba_req; | |
523 | static u8 dialog_tok; | |
524 | int ret; | |
525 | ||
526 | dev_dbg(priv->adapter->dev, "cmd: %s: tid %d\n", __func__, tid); | |
527 | ||
528 | add_ba_req.block_ack_param_set = cpu_to_le16( | |
529 | (u16) ((tid << BLOCKACKPARAM_TID_POS) | | |
530 | (priv->add_ba_param. | |
531 | tx_win_size << BLOCKACKPARAM_WINSIZE_POS) | | |
532 | IMMEDIATE_BLOCK_ACK)); | |
533 | add_ba_req.block_ack_tmo = cpu_to_le16((u16)priv->add_ba_param.timeout); | |
534 | ||
535 | ++dialog_tok; | |
536 | ||
537 | if (dialog_tok == 0) | |
538 | dialog_tok = 1; | |
539 | ||
540 | add_ba_req.dialog_token = dialog_tok; | |
541 | memcpy(&add_ba_req.peer_mac_addr, peer_mac, ETH_ALEN); | |
542 | ||
543 | /* We don't wait for the response of this command */ | |
600f5d90 AK |
544 | ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_REQ, |
545 | 0, 0, &add_ba_req); | |
5e6e3a92 BZ |
546 | |
547 | return ret; | |
548 | } | |
549 | ||
550 | /* | |
551 | * This function sends a delete BA request to the given TID/RA pair. | |
552 | */ | |
553 | int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac, | |
554 | int initiator) | |
555 | { | |
556 | struct host_cmd_ds_11n_delba delba; | |
557 | int ret; | |
558 | uint16_t del_ba_param_set; | |
559 | ||
560 | memset(&delba, 0, sizeof(delba)); | |
561 | delba.del_ba_param_set = cpu_to_le16(tid << DELBA_TID_POS); | |
562 | ||
563 | del_ba_param_set = le16_to_cpu(delba.del_ba_param_set); | |
564 | if (initiator) | |
565 | del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK; | |
566 | else | |
567 | del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK; | |
568 | ||
569 | memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN); | |
570 | ||
571 | /* We don't wait for the response of this command */ | |
600f5d90 AK |
572 | ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_DELBA, |
573 | HostCmd_ACT_GEN_SET, 0, &delba); | |
5e6e3a92 BZ |
574 | |
575 | return ret; | |
576 | } | |
577 | ||
578 | /* | |
579 | * This function handles the command response of a delete BA request. | |
580 | */ | |
581 | void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba) | |
582 | { | |
583 | struct host_cmd_ds_11n_delba *cmd_del_ba = | |
584 | (struct host_cmd_ds_11n_delba *) del_ba; | |
585 | uint16_t del_ba_param_set = le16_to_cpu(cmd_del_ba->del_ba_param_set); | |
586 | int tid; | |
587 | ||
588 | tid = del_ba_param_set >> DELBA_TID_POS; | |
589 | ||
3e822635 YAP |
590 | mwifiex_del_ba_tbl(priv, tid, cmd_del_ba->peer_mac_addr, |
591 | TYPE_DELBA_RECEIVE, INITIATOR_BIT(del_ba_param_set)); | |
5e6e3a92 BZ |
592 | } |
593 | ||
594 | /* | |
595 | * This function retrieves the Rx reordering table. | |
596 | */ | |
597 | int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv, | |
598 | struct mwifiex_ds_rx_reorder_tbl *buf) | |
599 | { | |
600 | int i; | |
601 | struct mwifiex_ds_rx_reorder_tbl *rx_reo_tbl = buf; | |
602 | struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr; | |
603 | int count = 0; | |
604 | unsigned long flags; | |
605 | ||
606 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
607 | list_for_each_entry(rx_reorder_tbl_ptr, &priv->rx_reorder_tbl_ptr, | |
608 | list) { | |
609 | rx_reo_tbl->tid = (u16) rx_reorder_tbl_ptr->tid; | |
610 | memcpy(rx_reo_tbl->ta, rx_reorder_tbl_ptr->ta, ETH_ALEN); | |
611 | rx_reo_tbl->start_win = rx_reorder_tbl_ptr->start_win; | |
612 | rx_reo_tbl->win_size = rx_reorder_tbl_ptr->win_size; | |
613 | for (i = 0; i < rx_reorder_tbl_ptr->win_size; ++i) { | |
614 | if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) | |
615 | rx_reo_tbl->buffer[i] = true; | |
616 | else | |
617 | rx_reo_tbl->buffer[i] = false; | |
618 | } | |
619 | rx_reo_tbl++; | |
620 | count++; | |
621 | ||
622 | if (count >= MWIFIEX_MAX_RX_BASTREAM_SUPPORTED) | |
623 | break; | |
624 | } | |
625 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
626 | ||
627 | return count; | |
628 | } | |
629 | ||
630 | /* | |
631 | * This function retrieves the Tx BA stream table. | |
632 | */ | |
633 | int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv, | |
634 | struct mwifiex_ds_tx_ba_stream_tbl *buf) | |
635 | { | |
636 | struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl; | |
637 | struct mwifiex_ds_tx_ba_stream_tbl *rx_reo_tbl = buf; | |
638 | int count = 0; | |
639 | unsigned long flags; | |
640 | ||
641 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
642 | list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) { | |
643 | rx_reo_tbl->tid = (u16) tx_ba_tsr_tbl->tid; | |
644 | dev_dbg(priv->adapter->dev, "data: %s tid=%d\n", | |
84266841 | 645 | __func__, rx_reo_tbl->tid); |
5e6e3a92 BZ |
646 | memcpy(rx_reo_tbl->ra, tx_ba_tsr_tbl->ra, ETH_ALEN); |
647 | rx_reo_tbl++; | |
648 | count++; | |
649 | if (count >= MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) | |
650 | break; | |
651 | } | |
652 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
653 | ||
654 | return count; | |
655 | } | |
3e238a11 AP |
656 | |
657 | /* | |
658 | * This function retrieves the entry for specific tx BA stream table by RA and | |
659 | * deletes it. | |
660 | */ | |
661 | void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra) | |
662 | { | |
663 | struct mwifiex_tx_ba_stream_tbl *tbl, *tmp; | |
664 | unsigned long flags; | |
665 | ||
666 | if (!ra) | |
667 | return; | |
668 | ||
669 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
670 | list_for_each_entry_safe(tbl, tmp, &priv->tx_ba_stream_tbl_ptr, list) { | |
671 | if (!memcmp(tbl->ra, ra, ETH_ALEN)) { | |
672 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, | |
673 | flags); | |
674 | mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, tbl); | |
675 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); | |
676 | } | |
677 | } | |
678 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
679 | ||
680 | return; | |
681 | } | |
04abc0a3 AP |
682 | |
683 | /* This function initializes the BlockACK setup information for given | |
684 | * mwifiex_private structure. | |
685 | */ | |
686 | void mwifiex_set_ba_params(struct mwifiex_private *priv) | |
687 | { | |
688 | priv->add_ba_param.timeout = MWIFIEX_DEFAULT_BLOCK_ACK_TIMEOUT; | |
689 | ||
690 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
691 | priv->add_ba_param.tx_win_size = | |
692 | MWIFIEX_UAP_AMPDU_DEF_TXWINSIZE; | |
693 | priv->add_ba_param.rx_win_size = | |
694 | MWIFIEX_UAP_AMPDU_DEF_RXWINSIZE; | |
695 | } else { | |
696 | priv->add_ba_param.tx_win_size = | |
697 | MWIFIEX_STA_AMPDU_DEF_TXWINSIZE; | |
698 | priv->add_ba_param.rx_win_size = | |
699 | MWIFIEX_STA_AMPDU_DEF_RXWINSIZE; | |
700 | } | |
701 | ||
702 | return; | |
703 | } |