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_11n_get_tx_ba_stream_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 =
105 (struct host_cmd_ds_11n_delba *) &resp->params.del_ba;
106 uint16_t del_ba_param_set = le16_to_cpu(del_ba->del_ba_param_set);
108 tid = del_ba_param_set >> DELBA_TID_POS;
109 if (del_ba->del_result == BA_RESULT_SUCCESS) {
110 mwifiex_11n_delete_ba_stream_tbl(priv, tid,
111 del_ba->peer_mac_addr, TYPE_DELBA_SENT,
112 INITIATOR_BIT(del_ba_param_set));
114 tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_status(priv,
115 BA_STREAM_SETUP_INPROGRESS);
117 mwifiex_send_addba(priv, tx_ba_tbl->tid,
120 * In case of failure, recreate the deleted stream in case
121 * we initiated the ADDBA
123 if (INITIATOR_BIT(del_ba_param_set)) {
124 mwifiex_11n_create_tx_ba_stream_tbl(priv,
125 del_ba->peer_mac_addr, tid,
126 BA_STREAM_SETUP_INPROGRESS);
128 tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_status(priv,
129 BA_STREAM_SETUP_INPROGRESS);
131 mwifiex_11n_delete_ba_stream_tbl(priv,
132 tx_ba_tbl->tid, tx_ba_tbl->ra,
133 TYPE_DELBA_SENT, true);
141 * This function handles the command response of add a block
144 * Handling includes changing the header fields to CPU formats, checking
145 * the response success status and taking actions accordingly (delete the
146 * BA stream table in case of failure).
148 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
149 struct host_cmd_ds_command *resp)
152 struct host_cmd_ds_11n_addba_rsp *add_ba_rsp =
153 (struct host_cmd_ds_11n_addba_rsp *) &resp->params.add_ba_rsp;
154 struct mwifiex_tx_ba_stream_tbl *tx_ba_tbl;
156 add_ba_rsp->ssn = cpu_to_le16((le16_to_cpu(add_ba_rsp->ssn))
159 tid = (le16_to_cpu(add_ba_rsp->block_ack_param_set)
160 & IEEE80211_ADDBA_PARAM_TID_MASK)
161 >> BLOCKACKPARAM_TID_POS;
162 if (le16_to_cpu(add_ba_rsp->status_code) == BA_RESULT_SUCCESS) {
163 tx_ba_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid,
164 add_ba_rsp->peer_mac_addr);
166 dev_dbg(priv->adapter->dev, "info: BA stream complete\n");
167 tx_ba_tbl->ba_status = BA_STREAM_SETUP_COMPLETE;
169 dev_err(priv->adapter->dev, "BA stream not created\n");
172 mwifiex_11n_delete_ba_stream_tbl(priv, tid,
173 add_ba_rsp->peer_mac_addr,
174 TYPE_DELBA_SENT, true);
175 if (add_ba_rsp->add_rsp_result != BA_RESULT_TIMEOUT)
176 priv->aggr_prio_tbl[tid].ampdu_ap =
177 BA_STREAM_NOT_ALLOWED;
184 * This function handles the command response of 11n configuration request.
186 * Handling includes changing the header fields into CPU format.
188 int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp, void *data_buf)
190 struct mwifiex_ds_11n_tx_cfg *tx_cfg = NULL;
191 struct host_cmd_ds_11n_cfg *htcfg = &resp->params.htcfg;
194 tx_cfg = (struct mwifiex_ds_11n_tx_cfg *) data_buf;
195 tx_cfg->tx_htcap = le16_to_cpu(htcfg->ht_tx_cap);
196 tx_cfg->tx_htinfo = le16_to_cpu(htcfg->ht_tx_info);
202 * This function prepares command of reconfigure Tx buffer.
204 * Preparation includes -
205 * - Setting command ID, action and proper size
206 * - Setting Tx buffer size (for SET only)
207 * - Ensuring correct endian-ness
209 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
210 struct host_cmd_ds_command *cmd, int cmd_action,
213 struct host_cmd_ds_txbuf_cfg *tx_buf = &cmd->params.tx_buf;
214 u16 action = (u16) cmd_action;
215 u16 buf_size = *((u16 *) data_buf);
217 cmd->command = cpu_to_le16(HostCmd_CMD_RECONFIGURE_TX_BUFF);
219 cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg) + S_DS_GEN);
220 tx_buf->action = cpu_to_le16(action);
222 case HostCmd_ACT_GEN_SET:
223 dev_dbg(priv->adapter->dev, "cmd: set tx_buf=%d\n", buf_size);
224 tx_buf->buff_size = cpu_to_le16(buf_size);
226 case HostCmd_ACT_GEN_GET:
228 tx_buf->buff_size = 0;
235 * This function prepares command of AMSDU aggregation control.
237 * Preparation includes -
238 * - Setting command ID, action and proper size
239 * - Setting AMSDU control parameters (for SET only)
240 * - Ensuring correct endian-ness
242 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
243 int cmd_action, void *data_buf)
245 struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
246 &cmd->params.amsdu_aggr_ctrl;
247 u16 action = (u16) cmd_action;
248 struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl =
249 (struct mwifiex_ds_11n_amsdu_aggr_ctrl *) data_buf;
251 cmd->command = cpu_to_le16(HostCmd_CMD_AMSDU_AGGR_CTRL);
252 cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl)
254 amsdu_ctrl->action = cpu_to_le16(action);
256 case HostCmd_ACT_GEN_SET:
257 amsdu_ctrl->enable = cpu_to_le16(aa_ctrl->enable);
258 amsdu_ctrl->curr_buf_size = 0;
260 case HostCmd_ACT_GEN_GET:
262 amsdu_ctrl->curr_buf_size = 0;
269 * This function handles the command response of AMSDU aggregation
272 * Handling includes changing the header fields into CPU format.
274 int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
277 struct mwifiex_ds_11n_amsdu_aggr_ctrl *amsdu_aggr_ctrl = NULL;
278 struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
279 &resp->params.amsdu_aggr_ctrl;
283 (struct mwifiex_ds_11n_amsdu_aggr_ctrl *) data_buf;
284 amsdu_aggr_ctrl->enable = le16_to_cpu(amsdu_ctrl->enable);
285 amsdu_aggr_ctrl->curr_buf_size =
286 le16_to_cpu(amsdu_ctrl->curr_buf_size);
292 * This function prepares 11n configuration command.
294 * Preparation includes -
295 * - Setting command ID, action and proper size
296 * - Setting HT Tx capability and HT Tx information fields
297 * - Ensuring correct endian-ness
299 int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd,
300 u16 cmd_action, void *data_buf)
302 struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg;
303 struct mwifiex_ds_11n_tx_cfg *txcfg =
304 (struct mwifiex_ds_11n_tx_cfg *) data_buf;
306 cmd->command = cpu_to_le16(HostCmd_CMD_11N_CFG);
307 cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg) + S_DS_GEN);
308 htcfg->action = cpu_to_le16(cmd_action);
309 htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap);
310 htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo);
315 * This function appends an 11n TLV to a buffer.
317 * Buffer allocation is responsibility of the calling
318 * function. No size validation is made here.
320 * The function fills up the following sections, if applicable -
322 * - HT information IE (with channel list)
323 * - 20/40 BSS Coexistence IE
324 * - HT Extended Capabilities IE
327 mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
328 struct mwifiex_bssdescriptor *bss_desc,
331 struct mwifiex_ie_types_htcap *ht_cap;
332 struct mwifiex_ie_types_htinfo *ht_info;
333 struct mwifiex_ie_types_chan_list_param_set *chan_list;
334 struct mwifiex_ie_types_2040bssco *bss_co_2040;
335 struct mwifiex_ie_types_extcap *ext_cap;
337 struct ieee80211_supported_band *sband;
340 if (!buffer || !*buffer)
343 radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
344 sband = priv->wdev->wiphy->bands[radio_type];
346 if (bss_desc->bcn_ht_cap) {
347 ht_cap = (struct mwifiex_ie_types_htcap *) *buffer;
348 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
349 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
351 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
352 memcpy((u8 *) ht_cap + sizeof(struct mwifiex_ie_types_header),
353 (u8 *) bss_desc->bcn_ht_cap +
354 sizeof(struct ieee_types_header),
355 le16_to_cpu(ht_cap->header.len));
357 mwifiex_fill_cap_info(priv, radio_type, ht_cap);
359 *buffer += sizeof(struct mwifiex_ie_types_htcap);
360 ret_len += sizeof(struct mwifiex_ie_types_htcap);
363 if (bss_desc->bcn_ht_info) {
364 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
365 ht_info = (struct mwifiex_ie_types_htinfo *) *buffer;
367 sizeof(struct mwifiex_ie_types_htinfo));
368 ht_info->header.type =
369 cpu_to_le16(WLAN_EID_HT_INFORMATION);
370 ht_info->header.len =
371 cpu_to_le16(sizeof(struct ieee80211_ht_info));
373 memcpy((u8 *) ht_info +
374 sizeof(struct mwifiex_ie_types_header),
375 (u8 *) bss_desc->bcn_ht_info +
376 sizeof(struct ieee_types_header),
377 le16_to_cpu(ht_info->header.len));
379 if (!(sband->ht_cap.cap &
380 IEEE80211_HT_CAP_SUP_WIDTH_20_40))
381 ht_info->ht_info.ht_param &=
382 ~(IEEE80211_HT_PARAM_CHAN_WIDTH_ANY |
383 IEEE80211_HT_PARAM_CHA_SEC_OFFSET);
385 *buffer += sizeof(struct mwifiex_ie_types_htinfo);
386 ret_len += sizeof(struct mwifiex_ie_types_htinfo);
390 (struct mwifiex_ie_types_chan_list_param_set *) *buffer;
392 sizeof(struct mwifiex_ie_types_chan_list_param_set));
393 chan_list->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
394 chan_list->header.len = cpu_to_le16(
395 sizeof(struct mwifiex_ie_types_chan_list_param_set) -
396 sizeof(struct mwifiex_ie_types_header));
397 chan_list->chan_scan_param[0].chan_number =
398 bss_desc->bcn_ht_info->control_chan;
399 chan_list->chan_scan_param[0].radio_type =
400 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
402 if ((sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
403 && (bss_desc->bcn_ht_info->ht_param &
404 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
405 SET_SECONDARYCHAN(chan_list->chan_scan_param[0].
407 (bss_desc->bcn_ht_info->ht_param &
408 IEEE80211_HT_PARAM_CHA_SEC_OFFSET));
410 *buffer += sizeof(struct mwifiex_ie_types_chan_list_param_set);
411 ret_len += sizeof(struct mwifiex_ie_types_chan_list_param_set);
414 if (bss_desc->bcn_bss_co_2040) {
415 bss_co_2040 = (struct mwifiex_ie_types_2040bssco *) *buffer;
416 memset(bss_co_2040, 0,
417 sizeof(struct mwifiex_ie_types_2040bssco));
418 bss_co_2040->header.type = cpu_to_le16(WLAN_EID_BSS_COEX_2040);
419 bss_co_2040->header.len =
420 cpu_to_le16(sizeof(bss_co_2040->bss_co_2040));
422 memcpy((u8 *) bss_co_2040 +
423 sizeof(struct mwifiex_ie_types_header),
424 (u8 *) bss_desc->bcn_bss_co_2040 +
425 sizeof(struct ieee_types_header),
426 le16_to_cpu(bss_co_2040->header.len));
428 *buffer += sizeof(struct mwifiex_ie_types_2040bssco);
429 ret_len += sizeof(struct mwifiex_ie_types_2040bssco);
432 if (bss_desc->bcn_ext_cap) {
433 ext_cap = (struct mwifiex_ie_types_extcap *) *buffer;
434 memset(ext_cap, 0, sizeof(struct mwifiex_ie_types_extcap));
435 ext_cap->header.type = cpu_to_le16(WLAN_EID_EXT_CAPABILITY);
436 ext_cap->header.len = cpu_to_le16(sizeof(ext_cap->ext_cap));
438 memcpy((u8 *) ext_cap +
439 sizeof(struct mwifiex_ie_types_header),
440 (u8 *) bss_desc->bcn_ext_cap +
441 sizeof(struct ieee_types_header),
442 le16_to_cpu(ext_cap->header.len));
444 *buffer += sizeof(struct mwifiex_ie_types_extcap);
445 ret_len += sizeof(struct mwifiex_ie_types_extcap);
452 * This function reconfigures the Tx buffer size in firmware.
454 * This function prepares a firmware command and issues it, if
455 * the current Tx buffer size is different from the one requested.
456 * Maximum configurable Tx buffer size is limited by the HT capability
460 mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
461 struct mwifiex_bssdescriptor *bss_desc)
463 u16 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_2K;
465 u16 curr_tx_buf_size = 0;
467 if (bss_desc->bcn_ht_cap) {
468 if (le16_to_cpu(bss_desc->bcn_ht_cap->cap_info) &
469 IEEE80211_HT_CAP_MAX_AMSDU)
470 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_8K;
472 max_amsdu = MWIFIEX_TX_DATA_BUF_SIZE_4K;
475 tx_buf = min(priv->adapter->max_tx_buf_size, max_amsdu);
477 dev_dbg(priv->adapter->dev, "info: max_amsdu=%d, max_tx_buf=%d\n",
478 max_amsdu, priv->adapter->max_tx_buf_size);
480 if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_2K)
481 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
482 else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_4K)
483 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
484 else if (priv->adapter->curr_tx_buf_size <= MWIFIEX_TX_DATA_BUF_SIZE_8K)
485 curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_8K;
486 if (curr_tx_buf_size != tx_buf)
487 mwifiex_send_cmd_async(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF,
488 HostCmd_ACT_GEN_SET, 0, &tx_buf);
492 * This function checks if the given pointer is valid entry of
493 * Tx BA Stream table.
495 static int mwifiex_is_tx_ba_stream_ptr_valid(struct mwifiex_private *priv,
496 struct mwifiex_tx_ba_stream_tbl *tx_tbl_ptr)
498 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
500 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
501 if (tx_ba_tsr_tbl == tx_tbl_ptr)
509 * This function deletes the given entry in Tx BA Stream table.
511 * The function also performs a validity check on the supplied
512 * pointer before trying to delete.
514 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
515 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl)
517 if (!tx_ba_tsr_tbl &&
518 mwifiex_is_tx_ba_stream_ptr_valid(priv, tx_ba_tsr_tbl))
521 dev_dbg(priv->adapter->dev, "info: tx_ba_tsr_tbl %p\n", tx_ba_tsr_tbl);
523 list_del(&tx_ba_tsr_tbl->list);
525 kfree(tx_ba_tsr_tbl);
529 * This function deletes all the entries in Tx BA Stream table.
531 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv)
534 struct mwifiex_tx_ba_stream_tbl *del_tbl_ptr, *tmp_node;
537 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
538 list_for_each_entry_safe(del_tbl_ptr, tmp_node,
539 &priv->tx_ba_stream_tbl_ptr, list)
540 mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, del_tbl_ptr);
541 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
543 INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
545 for (i = 0; i < MAX_NUM_TID; ++i)
546 priv->aggr_prio_tbl[i].ampdu_ap =
547 priv->aggr_prio_tbl[i].ampdu_user;
551 * This function returns the pointer to an entry in BA Stream
552 * table which matches the given RA/TID pair.
554 struct mwifiex_tx_ba_stream_tbl *
555 mwifiex_11n_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
558 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
561 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
562 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
563 if ((!memcmp(tx_ba_tsr_tbl->ra, ra, ETH_ALEN))
564 && (tx_ba_tsr_tbl->tid == tid)) {
565 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock,
567 return tx_ba_tsr_tbl;
570 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
575 * This function creates an entry in Tx BA stream table for the
578 void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv,
580 enum mwifiex_ba_status ba_status)
582 struct mwifiex_tx_ba_stream_tbl *new_node;
585 if (!mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ra)) {
586 new_node = kzalloc(sizeof(struct mwifiex_tx_ba_stream_tbl),
589 dev_err(priv->adapter->dev,
590 "%s: failed to alloc new_node\n", __func__);
594 INIT_LIST_HEAD(&new_node->list);
597 new_node->ba_status = ba_status;
598 memcpy(new_node->ra, ra, ETH_ALEN);
600 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
601 list_add_tail(&new_node->list, &priv->tx_ba_stream_tbl_ptr);
602 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
607 * This function sends an add BA request to the given TID/RA pair.
609 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac)
611 struct host_cmd_ds_11n_addba_req add_ba_req;
612 static u8 dialog_tok;
615 dev_dbg(priv->adapter->dev, "cmd: %s: tid %d\n", __func__, tid);
617 add_ba_req.block_ack_param_set = cpu_to_le16(
618 (u16) ((tid << BLOCKACKPARAM_TID_POS) |
620 tx_win_size << BLOCKACKPARAM_WINSIZE_POS) |
621 IMMEDIATE_BLOCK_ACK));
622 add_ba_req.block_ack_tmo = cpu_to_le16((u16)priv->add_ba_param.timeout);
629 add_ba_req.dialog_token = dialog_tok;
630 memcpy(&add_ba_req.peer_mac_addr, peer_mac, ETH_ALEN);
632 /* We don't wait for the response of this command */
633 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_REQ,
640 * This function sends a delete BA request to the given TID/RA pair.
642 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
645 struct host_cmd_ds_11n_delba delba;
647 uint16_t del_ba_param_set;
649 memset(&delba, 0, sizeof(delba));
650 delba.del_ba_param_set = cpu_to_le16(tid << DELBA_TID_POS);
652 del_ba_param_set = le16_to_cpu(delba.del_ba_param_set);
654 del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK;
656 del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK;
658 memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN);
660 /* We don't wait for the response of this command */
661 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_DELBA,
662 HostCmd_ACT_GEN_SET, 0, &delba);
668 * This function handles the command response of a delete BA request.
670 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba)
672 struct host_cmd_ds_11n_delba *cmd_del_ba =
673 (struct host_cmd_ds_11n_delba *) del_ba;
674 uint16_t del_ba_param_set = le16_to_cpu(cmd_del_ba->del_ba_param_set);
677 tid = del_ba_param_set >> DELBA_TID_POS;
679 mwifiex_11n_delete_ba_stream_tbl(priv, tid, cmd_del_ba->peer_mac_addr,
681 INITIATOR_BIT(del_ba_param_set));
685 * This function retrieves the Rx reordering table.
687 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
688 struct mwifiex_ds_rx_reorder_tbl *buf)
691 struct mwifiex_ds_rx_reorder_tbl *rx_reo_tbl = buf;
692 struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr;
696 spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
697 list_for_each_entry(rx_reorder_tbl_ptr, &priv->rx_reorder_tbl_ptr,
699 rx_reo_tbl->tid = (u16) rx_reorder_tbl_ptr->tid;
700 memcpy(rx_reo_tbl->ta, rx_reorder_tbl_ptr->ta, ETH_ALEN);
701 rx_reo_tbl->start_win = rx_reorder_tbl_ptr->start_win;
702 rx_reo_tbl->win_size = rx_reorder_tbl_ptr->win_size;
703 for (i = 0; i < rx_reorder_tbl_ptr->win_size; ++i) {
704 if (rx_reorder_tbl_ptr->rx_reorder_ptr[i])
705 rx_reo_tbl->buffer[i] = true;
707 rx_reo_tbl->buffer[i] = false;
712 if (count >= MWIFIEX_MAX_RX_BASTREAM_SUPPORTED)
715 spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
721 * This function retrieves the Tx BA stream table.
723 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
724 struct mwifiex_ds_tx_ba_stream_tbl *buf)
726 struct mwifiex_tx_ba_stream_tbl *tx_ba_tsr_tbl;
727 struct mwifiex_ds_tx_ba_stream_tbl *rx_reo_tbl = buf;
731 spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
732 list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
733 rx_reo_tbl->tid = (u16) tx_ba_tsr_tbl->tid;
734 dev_dbg(priv->adapter->dev, "data: %s tid=%d\n",
735 __func__, rx_reo_tbl->tid);
736 memcpy(rx_reo_tbl->ra, tx_ba_tsr_tbl->ra, ETH_ALEN);
739 if (count >= MWIFIEX_MAX_TX_BASTREAM_SUPPORTED)
742 spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);