2 * Marvell Wireless LAN device driver: 802.11n
4 * Copyright (C) 2011, Marvell International Ltd.
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.
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.
29 * Fills HT capability information field, AMPDU Parameters field, HT extended
30 * capability field, and supported MCS set fields.
32 * HT capability information field, AMPDU Parameters field, supported MCS set
33 * fields are retrieved from cfg80211 stack
35 * RD responder bit to set to clear in the extended capability header.
38 mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type,
39 struct mwifiex_ie_types_htcap *ht_cap)
41 uint16_t ht_ext_cap = le16_to_cpu(ht_cap->ht_cap.extended_ht_cap_info);
42 struct ieee80211_supported_band *sband =
43 priv->wdev->wiphy->bands[radio_type];
45 ht_cap->ht_cap.ampdu_params_info =
46 (sband->ht_cap.ampdu_factor &
47 IEEE80211_HT_AMPDU_PARM_FACTOR) |
48 ((sband->ht_cap.ampdu_density <<
49 IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT) &
50 IEEE80211_HT_AMPDU_PARM_DENSITY);
52 memcpy((u8 *) &ht_cap->ht_cap.mcs, &sband->ht_cap.mcs,
53 sizeof(sband->ht_cap.mcs));
55 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
56 sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
57 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
58 SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask);
60 /* Clear RD responder bit */
61 ht_ext_cap &= ~IEEE80211_HT_EXT_CAP_RD_RESPONDER;
63 ht_cap->ht_cap.cap_info = cpu_to_le16(sband->ht_cap.cap);
64 ht_cap->ht_cap.extended_ht_cap_info = cpu_to_le16(ht_ext_cap);
68 * This function returns the pointer to an entry in BA Stream
69 * table which matches the requested BA status.
71 static struct mwifiex_tx_ba_stream_tbl *
72 mwifiex_get_ba_status(struct mwifiex_private *priv,
73 enum mwifiex_ba_status ba_status)
75 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
78 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
79 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
80 if (tx_ba_tsr_tbl->ba_status == ba_status) {
81 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock,
86 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
91 * This function handles the command response of delete a block
94 * The function checks the response success status and takes action
95 * accordingly (send an add BA request in case of success, or recreate
96 * the deleted stream in case of failure, if the add BA was also
99 int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
100 struct host_cmd_ds_command *resp)
103 struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl;
104 struct host_cmd_ds_11n_delba *del_ba = &resp->params.del_ba;
105 uint16_t del_ba_param_set = le16_to_cpu(del_ba->del_ba_param_set);
107 tid = del_ba_param_set >> DELBA_TID_POS;
108 if (del_ba->del_result == BA_RESULT_SUCCESS) {
109 mwifiex_del_ba_tbl(priv, tid, del_ba->peer_mac_addr,
111 INITIATOR_BIT(del_ba_param_set));
113 tx_ba_tbl = mwifiex_get_ba_status(priv, BA_SETUP_INPROGRESS);
115 mwifiex_send_addba(priv, tx_ba_tbl->tid,
118 * In case of failure, recreate the deleted stream in case
119 * we initiated the ADDBA
121 if (!INITIATOR_BIT(del_ba_param_set))
124 mwifiex_create_ba_tbl(priv, del_ba->peer_mac_addr, tid,
125 BA_SETUP_INPROGRESS);
127 tx_ba_tbl = mwifiex_get_ba_status(priv, BA_SETUP_INPROGRESS);
130 mwifiex_del_ba_tbl(priv, tx_ba_tbl->tid, tx_ba_tbl->ra,
131 TYPE_DELBA_SENT, true);
138 * This function handles the command response of add a block
141 * Handling includes changing the header fields to CPU formats, checking
142 * the response success status and taking actions accordingly (delete the
143 * BA stream table in case of failure).
145 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
146 struct host_cmd_ds_command *resp)
149 struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = &resp->params.add_ba_rsp;
150 struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl;
152 add_ba_rsp->ssn = cpu_to_le16((le16_to_cpu(add_ba_rsp->ssn))
155 tid = (le16_to_cpu(add_ba_rsp->block_ack_param_set)
156 & IEEE80211_ADDBA_PARAM_TID_MASK)
157 >> BLOCKACKPARAM_TID_POS;
158 if (le16_to_cpu(add_ba_rsp->status_code) == BA_RESULT_SUCCESS) {
159 tx_ba_tbl = mwifiex_get_ba_tbl(priv, tid,
160 add_ba_rsp->peer_mac_addr);
162 dev_dbg(priv->adapter->dev, "info: BA stream complete\n");
163 tx_ba_tbl->ba_status = BA_SETUP_COMPLETE;
165 dev_err(priv->adapter->dev, "BA stream not created\n");
168 mwifiex_del_ba_tbl(priv, tid, add_ba_rsp->peer_mac_addr,
169 TYPE_DELBA_SENT, true);
170 if (add_ba_rsp->add_rsp_result != BA_RESULT_TIMEOUT)
171 priv->aggr_prio_tbl[tid].ampdu_ap =
172 BA_STREAM_NOT_ALLOWED;
179 * This function handles the command response of 11n configuration request.
181 * Handling includes changing the header fields into CPU format.
183 int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp,
184 struct mwifiex_ds_11n_tx_cfg *tx_cfg)
186 struct host_cmd_ds_11n_cfg *htcfg = &resp->params.htcfg;
189 tx_cfg->tx_htcap = le16_to_cpu(htcfg->ht_tx_cap);
190 tx_cfg->tx_htinfo = le16_to_cpu(htcfg->ht_tx_info);
196 * This function prepares command of reconfigure Tx buffer.
198 * Preparation includes -
199 * - Setting command ID, action and proper size
200 * - Setting Tx buffer size (for SET only)
201 * - Ensuring correct endian-ness
203 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
204 struct host_cmd_ds_command *cmd, int cmd_action,
207 struct host_cmd_ds_txbuf_cfg *tx_buf = &cmd->params.tx_buf;
208 u16 action = (u16) cmd_action;
210 cmd->command = cpu_to_le16(HostCmd_CMD_RECONFIGURE_TX_BUFF);
212 cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg) + S_DS_GEN);
213 tx_buf->action = cpu_to_le16(action);
215 case HostCmd_ACT_GEN_SET:
216 dev_dbg(priv->adapter->dev, "cmd: set tx_buf=%d\n", *buf_size);
217 tx_buf->buff_size = cpu_to_le16(*buf_size);
219 case HostCmd_ACT_GEN_GET:
221 tx_buf->buff_size = 0;
228 * This function prepares command of AMSDU aggregation control.
230 * Preparation includes -
231 * - Setting command ID, action and proper size
232 * - Setting AMSDU control parameters (for SET only)
233 * - Ensuring correct endian-ness
235 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
237 struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl)
239 struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
240 &cmd->params.amsdu_aggr_ctrl;
241 u16 action = (u16) cmd_action;
243 cmd->command = cpu_to_le16(HostCmd_CMD_AMSDU_AGGR_CTRL);
244 cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl)
246 amsdu_ctrl->action = cpu_to_le16(action);
248 case HostCmd_ACT_GEN_SET:
249 amsdu_ctrl->enable = cpu_to_le16(aa_ctrl->enable);
250 amsdu_ctrl->curr_buf_size = 0;
252 case HostCmd_ACT_GEN_GET:
254 amsdu_ctrl->curr_buf_size = 0;
261 * This function handles the command response of AMSDU aggregation
264 * Handling includes changing the header fields into CPU format.
266 int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
267 struct mwifiex_ds_11n_amsdu_aggr_ctrl
270 struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
271 &resp->params.amsdu_aggr_ctrl;
273 if (amsdu_aggr_ctrl) {
274 amsdu_aggr_ctrl->enable = le16_to_cpu(amsdu_ctrl->enable);
275 amsdu_aggr_ctrl->curr_buf_size =
276 le16_to_cpu(amsdu_ctrl->curr_buf_size);
282 * This function prepares 11n configuration command.
284 * Preparation includes -
285 * - Setting command ID, action and proper size
286 * - Setting HT Tx capability and HT Tx information fields
287 * - Ensuring correct endian-ness
289 int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
290 struct mwifiex_ds_11n_tx_cfg *txcfg)
292 struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg;
294 cmd->command = cpu_to_le16(HostCmd_CMD_11N_CFG);
295 cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg) + S_DS_GEN);
296 htcfg->action = cpu_to_le16(cmd_action);
297 htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap);
298 htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo);
303 * This function appends an 11n TLV to a buffer.
305 * Buffer allocation is responsibility of the calling
306 * function. No size validation is made here.
308 * The function fills up the following sections, if applicable -
310 * - HT information IE (with channel list)
311 * - 20/40 BSS Coexistence IE
312 * - HT Extended Capabilities IE
315 mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
316 struct mwifiex_bssdescriptor *bss_desc,
319 struct mwifiex_ie_types_htcap *ht_cap;
320 struct mwifiex_ie_types_htinfo *ht_info;
321 struct mwifiex_ie_types_chan_list_param_set *chan_list;
322 struct mwifiex_ie_types_2040bssco *bss_co_2040;
323 struct mwifiex_ie_types_extcap *ext_cap;
325 struct ieee80211_supported_band *sband;
328 if (!buffer || !*buffer)
331 radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
332 sband = priv->wdev->wiphy->bands[radio_type];
334 if (bss_desc->bcn_ht_cap) {
335 ht_cap = (struct mwifiex_ie_types_htcap *) *buffer;
336 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
337 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
339 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
340 memcpy((u8 *) ht_cap + sizeof(struct mwifiex_ie_types_header),
341 (u8 *) bss_desc->bcn_ht_cap +
342 sizeof(struct ieee_types_header),
343 le16_to_cpu(ht_cap->header.len));
345 mwifiex_fill_cap_info(priv, radio_type, ht_cap);
347 *buffer += sizeof(struct mwifiex_ie_types_htcap);
348 ret_len += sizeof(struct mwifiex_ie_types_htcap);
351 if (bss_desc->bcn_ht_oper) {
352 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
353 ht_info = (struct mwifiex_ie_types_htinfo *) *buffer;
355 sizeof(struct mwifiex_ie_types_htinfo));
356 ht_info->header.type =
357 cpu_to_le16(WLAN_EID_HT_OPERATION);
358 ht_info->header.len =
360 sizeof(struct ieee80211_ht_operation));
362 memcpy((u8 *) ht_info +
363 sizeof(struct mwifiex_ie_types_header),
364 (u8 *) bss_desc->bcn_ht_oper +
365 sizeof(struct ieee_types_header),
366 le16_to_cpu(ht_info->header.len));
368 if (!(sband->ht_cap.cap &
369 IEEE80211_HT_CAP_SUP_WIDTH_20_40))
370 ht_info->ht_oper.ht_param &=
371 ~(IEEE80211_HT_PARAM_CHAN_WIDTH_ANY |
372 IEEE80211_HT_PARAM_CHA_SEC_OFFSET);
374 *buffer += sizeof(struct mwifiex_ie_types_htinfo);
375 ret_len += sizeof(struct mwifiex_ie_types_htinfo);
379 (struct mwifiex_ie_types_chan_list_param_set *) *buffer;
381 sizeof(struct mwifiex_ie_types_chan_list_param_set));
382 chan_list->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
383 chan_list->header.len = cpu_to_le16(
384 sizeof(struct mwifiex_ie_types_chan_list_param_set) -
385 sizeof(struct mwifiex_ie_types_header));
386 chan_list->chan_scan_param[0].chan_number =
387 bss_desc->bcn_ht_oper->primary_chan;
388 chan_list->chan_scan_param[0].radio_type =
389 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
391 if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
392 bss_desc->bcn_ht_oper->ht_param &
393 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)
394 SET_SECONDARYCHAN(chan_list->chan_scan_param[0].
396 (bss_desc->bcn_ht_oper->ht_param &
397 IEEE80211_HT_PARAM_CHA_SEC_OFFSET));
399 *buffer += sizeof(struct mwifiex_ie_types_chan_list_param_set);
400 ret_len += sizeof(struct mwifiex_ie_types_chan_list_param_set);
403 if (bss_desc->bcn_bss_co_2040) {
404 bss_co_2040 = (struct mwifiex_ie_types_2040bssco *) *buffer;
405 memset(bss_co_2040, 0,
406 sizeof(struct mwifiex_ie_types_2040bssco));
407 bss_co_2040->header.type = cpu_to_le16(WLAN_EID_BSS_COEX_2040);
408 bss_co_2040->header.len =
409 cpu_to_le16(sizeof(bss_co_2040->bss_co_2040));
411 memcpy((u8 *) bss_co_2040 +
412 sizeof(struct mwifiex_ie_types_header),
413 bss_desc->bcn_bss_co_2040 +
414 sizeof(struct ieee_types_header),
415 le16_to_cpu(bss_co_2040->header.len));
417 *buffer += sizeof(struct mwifiex_ie_types_2040bssco);
418 ret_len += sizeof(struct mwifiex_ie_types_2040bssco);
421 if (bss_desc->bcn_ext_cap) {
422 ext_cap = (struct mwifiex_ie_types_extcap *) *buffer;
423 memset(ext_cap, 0, sizeof(struct mwifiex_ie_types_extcap));
424 ext_cap->header.type = cpu_to_le16(WLAN_EID_EXT_CAPABILITY);
425 ext_cap->header.len = cpu_to_le16(sizeof(ext_cap->ext_cap));
427 memcpy((u8 *)ext_cap + sizeof(struct mwifiex_ie_types_header),
428 bss_desc->bcn_ext_cap + sizeof(struct ieee_types_header),
429 le16_to_cpu(ext_cap->header.len));
431 *buffer += sizeof(struct mwifiex_ie_types_extcap);
432 ret_len += sizeof(struct mwifiex_ie_types_extcap);
439 * This function reconfigures the Tx buffer size in firmware.
441 * This function prepares a firmware command and issues it, if
442 * the current Tx buffer size is different from the one requested.
443 * Maximum configurable Tx buffer size is limited by the HT capability
447 mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
448 struct mwifiex_bssdescriptor *bss_desc)
450 u16 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_2K;
451 u16 tx_buf, curr_tx_buf_size = 0;
453 if (bss_desc->bcn_ht_cap) {
454 if (le16_to_cpu(bss_desc->bcn_ht_cap->cap_info) &
455 IEEE80211_HT_CAP_MAX_AMSDU)
456 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_8K;
458 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_4K;
461 tx_buf = min(priv->adapter->max_tx_buf_size, max_amsdu);
463 dev_dbg(priv->adapter->dev, "info: max_amsdu=%d, max_tx_buf=%d\n",
464 max_amsdu, priv->adapter->max_tx_buf_size);
466 if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_2K)
467 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
468 else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_4K)
469 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
470 else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_8K)
471 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_8K;
472 if (curr_tx_buf_size != tx_buf)
473 mwifiex_send_cmd_async(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF,
474 HostCmd_ACT_GEN_SET, 0, &tx_buf);
478 * This function checks if the given pointer is valid entry of
479 * Tx BA Stream table.
481 static int mwifiex_is_tx_ba_stream_ptr_valid(struct mwifiex_private *priv,
482 struct mwifiex_tx_ba_stream_tbl *tx_tbl_ptr)
484 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
486 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
487 if (tx_ba_tsr_tbl == tx_tbl_ptr)
495 * This function deletes the given entry in Tx BA Stream table.
497 * The function also performs a validity check on the supplied
498 * pointer before trying to delete.
500 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
501 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl)
503 if (!tx_ba_tsr_tbl &&
504 mwifiex_is_tx_ba_stream_ptr_valid(priv, tx_ba_tsr_tbl))
507 dev_dbg(priv->adapter->dev, "info: tx_ba_tsr_tbl %p\n", tx_ba_tsr_tbl);
509 list_del(&tx_ba_tsr_tbl->list);
511 kfree(tx_ba_tsr_tbl);
515 * This function deletes all the entries in Tx BA Stream table.
517 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv)
520 struct mwifiex_tx_ba_stream_tbl *del_tbl_ptr, *tmp_node;
523 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
524 list_for_each_entry_safe(del_tbl_ptr, tmp_node,
525 &priv->tx_ba_stream_tbl_ptr, list)
526 mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, del_tbl_ptr);
527 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
529 INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
531 for (i = 0; i < MAX_NUM_TID; ++i)
532 priv->aggr_prio_tbl[i].ampdu_ap =
533 priv->aggr_prio_tbl[i].ampdu_user;
537 * This function returns the pointer to an entry in BA Stream
538 * table which matches the given RA/TID pair.
540 struct mwifiex_tx_ba_stream_tbl *
541 mwifiex_get_ba_tbl(struct mwifiex_private *priv, int tid, u8 *ra)
543 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
546 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
547 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
548 if (!memcmp(tx_ba_tsr_tbl->ra, ra, ETH_ALEN) &&
549 tx_ba_tsr_tbl->tid == tid) {
550 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock,
552 return tx_ba_tsr_tbl;
555 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
560 * This function creates an entry in Tx BA stream table for the
563 void mwifiex_create_ba_tbl(struct mwifiex_private *priv, u8 *ra, int tid,
564 enum mwifiex_ba_status ba_status)
566 struct mwifiex_tx_ba_stream_tbl *new_node;
569 if (!mwifiex_get_ba_tbl(priv, tid, ra)) {
570 new_node = kzalloc(sizeof(struct mwifiex_tx_ba_stream_tbl),
573 dev_err(priv->adapter->dev,
574 "%s: failed to alloc new_node\n", __func__);
578 INIT_LIST_HEAD(&new_node->list);
581 new_node->ba_status = ba_status;
582 memcpy(new_node->ra, ra, ETH_ALEN);
584 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
585 list_add_tail(&new_node->list, &priv->tx_ba_stream_tbl_ptr);
586 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
591 * This function sends an add BA request to the given TID/RA pair.
593 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac)
595 struct host_cmd_ds_11n_addba_req add_ba_req;
596 static u8 dialog_tok;
599 dev_dbg(priv->adapter->dev, "cmd: %s: tid %d\n", __func__, tid);
601 add_ba_req.block_ack_param_set = cpu_to_le16(
602 (u16) ((tid << BLOCKACKPARAM_TID_POS) |
604 tx_win_size << BLOCKACKPARAM_WINSIZE_POS) |
605 IMMEDIATE_BLOCK_ACK));
606 add_ba_req.block_ack_tmo = cpu_to_le16((u16)priv->add_ba_param.timeout);
613 add_ba_req.dialog_token = dialog_tok;
614 memcpy(&add_ba_req.peer_mac_addr, peer_mac, ETH_ALEN);
616 /* We don't wait for the response of this command */
617 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_REQ,
624 * This function sends a delete BA request to the given TID/RA pair.
626 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
629 struct host_cmd_ds_11n_delba delba;
631 uint16_t del_ba_param_set;
633 memset(&delba, 0, sizeof(delba));
634 delba.del_ba_param_set = cpu_to_le16(tid << DELBA_TID_POS);
636 del_ba_param_set = le16_to_cpu(delba.del_ba_param_set);
638 del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK;
640 del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK;
642 memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN);
644 /* We don't wait for the response of this command */
645 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_DELBA,
646 HostCmd_ACT_GEN_SET, 0, &delba);
652 * This function handles the command response of a delete BA request.
654 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba)
656 struct host_cmd_ds_11n_delba *cmd_del_ba =
657 (struct host_cmd_ds_11n_delba *) del_ba;
658 uint16_t del_ba_param_set = le16_to_cpu(cmd_del_ba->del_ba_param_set);
661 tid = del_ba_param_set >> DELBA_TID_POS;
663 mwifiex_del_ba_tbl(priv, tid, cmd_del_ba->peer_mac_addr,
664 TYPE_DELBA_RECEIVE, INITIATOR_BIT(del_ba_param_set));
668 * This function retrieves the Rx reordering table.
670 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
671 struct mwifiex_ds_rx_reorder_tbl *buf)
674 struct mwifiex_ds_rx_reorder_tbl *rx_reo_tbl = buf;
675 struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr;
679 spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
680 list_for_each_entry(rx_reorder_tbl_ptr, &priv->rx_reorder_tbl_ptr,
682 rx_reo_tbl->tid = (u16) rx_reorder_tbl_ptr->tid;
683 memcpy(rx_reo_tbl->ta, rx_reorder_tbl_ptr->ta, ETH_ALEN);
684 rx_reo_tbl->start_win = rx_reorder_tbl_ptr->start_win;
685 rx_reo_tbl->win_size = rx_reorder_tbl_ptr->win_size;
686 for (i = 0; i < rx_reorder_tbl_ptr->win_size; ++i) {
687 if (rx_reorder_tbl_ptr->rx_reorder_ptr[i])
688 rx_reo_tbl->buffer[i] = true;
690 rx_reo_tbl->buffer[i] = false;
695 if (count >= MWIFIEX_MAX_RX_BASTREAM_SUPPORTED)
698 spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
704 * This function retrieves the Tx BA stream table.
706 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
707 struct mwifiex_ds_tx_ba_stream_tbl *buf)
709 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
710 struct mwifiex_ds_tx_ba_stream_tbl *rx_reo_tbl = buf;
714 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
715 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
716 rx_reo_tbl->tid = (u16) tx_ba_tsr_tbl->tid;
717 dev_dbg(priv->adapter->dev, "data: %s tid=%d\n",
718 __func__, rx_reo_tbl->tid);
719 memcpy(rx_reo_tbl->ra, tx_ba_tsr_tbl->ra, ETH_ALEN);
722 if (count >= MWIFIEX_MAX_TX_BASTREAM_SUPPORTED)
725 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);