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 prepares command of reconfigure Tx buffer.
181 * Preparation includes -
182 * - Setting command ID, action and proper size
183 * - Setting Tx buffer size (for SET only)
184 * - Ensuring correct endian-ness
186 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private
*priv
,
187 struct host_cmd_ds_command
*cmd
, int cmd_action
,
190 struct host_cmd_ds_txbuf_cfg
*tx_buf
= &cmd
->params
.tx_buf
;
191 u16 action
= (u16
) cmd_action
;
193 cmd
->command
= cpu_to_le16(HostCmd_CMD_RECONFIGURE_TX_BUFF
);
195 cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg
) + S_DS_GEN
);
196 tx_buf
->action
= cpu_to_le16(action
);
198 case HostCmd_ACT_GEN_SET
:
199 dev_dbg(priv
->adapter
->dev
, "cmd: set tx_buf=%d\n", *buf_size
);
200 tx_buf
->buff_size
= cpu_to_le16(*buf_size
);
202 case HostCmd_ACT_GEN_GET
:
204 tx_buf
->buff_size
= 0;
211 * This function prepares command of AMSDU aggregation control.
213 * Preparation includes -
214 * - Setting command ID, action and proper size
215 * - Setting AMSDU control parameters (for SET only)
216 * - Ensuring correct endian-ness
218 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command
*cmd
,
220 struct mwifiex_ds_11n_amsdu_aggr_ctrl
*aa_ctrl
)
222 struct host_cmd_ds_amsdu_aggr_ctrl
*amsdu_ctrl
=
223 &cmd
->params
.amsdu_aggr_ctrl
;
224 u16 action
= (u16
) cmd_action
;
226 cmd
->command
= cpu_to_le16(HostCmd_CMD_AMSDU_AGGR_CTRL
);
227 cmd
->size
= cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl
)
229 amsdu_ctrl
->action
= cpu_to_le16(action
);
231 case HostCmd_ACT_GEN_SET
:
232 amsdu_ctrl
->enable
= cpu_to_le16(aa_ctrl
->enable
);
233 amsdu_ctrl
->curr_buf_size
= 0;
235 case HostCmd_ACT_GEN_GET
:
237 amsdu_ctrl
->curr_buf_size
= 0;
244 * This function prepares 11n configuration command.
246 * Preparation includes -
247 * - Setting command ID, action and proper size
248 * - Setting HT Tx capability and HT Tx information fields
249 * - Ensuring correct endian-ness
251 int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command
*cmd
, u16 cmd_action
,
252 struct mwifiex_ds_11n_tx_cfg
*txcfg
)
254 struct host_cmd_ds_11n_cfg
*htcfg
= &cmd
->params
.htcfg
;
256 cmd
->command
= cpu_to_le16(HostCmd_CMD_11N_CFG
);
257 cmd
->size
= cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg
) + S_DS_GEN
);
258 htcfg
->action
= cpu_to_le16(cmd_action
);
259 htcfg
->ht_tx_cap
= cpu_to_le16(txcfg
->tx_htcap
);
260 htcfg
->ht_tx_info
= cpu_to_le16(txcfg
->tx_htinfo
);
265 * This function appends an 11n TLV to a buffer.
267 * Buffer allocation is responsibility of the calling
268 * function. No size validation is made here.
270 * The function fills up the following sections, if applicable -
272 * - HT information IE (with channel list)
273 * - 20/40 BSS Coexistence IE
274 * - HT Extended Capabilities IE
277 mwifiex_cmd_append_11n_tlv(struct mwifiex_private
*priv
,
278 struct mwifiex_bssdescriptor
*bss_desc
,
281 struct mwifiex_ie_types_htcap
*ht_cap
;
282 struct mwifiex_ie_types_htinfo
*ht_info
;
283 struct mwifiex_ie_types_chan_list_param_set
*chan_list
;
284 struct mwifiex_ie_types_2040bssco
*bss_co_2040
;
285 struct mwifiex_ie_types_extcap
*ext_cap
;
287 struct ieee80211_supported_band
*sband
;
290 if (!buffer
|| !*buffer
)
293 radio_type
= mwifiex_band_to_radio_type((u8
) bss_desc
->bss_band
);
294 sband
= priv
->wdev
->wiphy
->bands
[radio_type
];
296 if (bss_desc
->bcn_ht_cap
) {
297 ht_cap
= (struct mwifiex_ie_types_htcap
*) *buffer
;
298 memset(ht_cap
, 0, sizeof(struct mwifiex_ie_types_htcap
));
299 ht_cap
->header
.type
= cpu_to_le16(WLAN_EID_HT_CAPABILITY
);
301 cpu_to_le16(sizeof(struct ieee80211_ht_cap
));
302 memcpy((u8
*) ht_cap
+ sizeof(struct mwifiex_ie_types_header
),
303 (u8
*) bss_desc
->bcn_ht_cap
+
304 sizeof(struct ieee_types_header
),
305 le16_to_cpu(ht_cap
->header
.len
));
307 mwifiex_fill_cap_info(priv
, radio_type
, ht_cap
);
309 *buffer
+= sizeof(struct mwifiex_ie_types_htcap
);
310 ret_len
+= sizeof(struct mwifiex_ie_types_htcap
);
313 if (bss_desc
->bcn_ht_oper
) {
314 if (priv
->bss_mode
== NL80211_IFTYPE_ADHOC
) {
315 ht_info
= (struct mwifiex_ie_types_htinfo
*) *buffer
;
317 sizeof(struct mwifiex_ie_types_htinfo
));
318 ht_info
->header
.type
=
319 cpu_to_le16(WLAN_EID_HT_OPERATION
);
320 ht_info
->header
.len
=
322 sizeof(struct ieee80211_ht_operation
));
324 memcpy((u8
*) ht_info
+
325 sizeof(struct mwifiex_ie_types_header
),
326 (u8
*) bss_desc
->bcn_ht_oper
+
327 sizeof(struct ieee_types_header
),
328 le16_to_cpu(ht_info
->header
.len
));
330 if (!(sband
->ht_cap
.cap
&
331 IEEE80211_HT_CAP_SUP_WIDTH_20_40
))
332 ht_info
->ht_oper
.ht_param
&=
333 ~(IEEE80211_HT_PARAM_CHAN_WIDTH_ANY
|
334 IEEE80211_HT_PARAM_CHA_SEC_OFFSET
);
336 *buffer
+= sizeof(struct mwifiex_ie_types_htinfo
);
337 ret_len
+= sizeof(struct mwifiex_ie_types_htinfo
);
341 (struct mwifiex_ie_types_chan_list_param_set
*) *buffer
;
343 sizeof(struct mwifiex_ie_types_chan_list_param_set
));
344 chan_list
->header
.type
= cpu_to_le16(TLV_TYPE_CHANLIST
);
345 chan_list
->header
.len
= cpu_to_le16(
346 sizeof(struct mwifiex_ie_types_chan_list_param_set
) -
347 sizeof(struct mwifiex_ie_types_header
));
348 chan_list
->chan_scan_param
[0].chan_number
=
349 bss_desc
->bcn_ht_oper
->primary_chan
;
350 chan_list
->chan_scan_param
[0].radio_type
=
351 mwifiex_band_to_radio_type((u8
) bss_desc
->bss_band
);
353 if (sband
->ht_cap
.cap
& IEEE80211_HT_CAP_SUP_WIDTH_20_40
&&
354 bss_desc
->bcn_ht_oper
->ht_param
&
355 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY
)
356 SET_SECONDARYCHAN(chan_list
->chan_scan_param
[0].
358 (bss_desc
->bcn_ht_oper
->ht_param
&
359 IEEE80211_HT_PARAM_CHA_SEC_OFFSET
));
361 *buffer
+= sizeof(struct mwifiex_ie_types_chan_list_param_set
);
362 ret_len
+= sizeof(struct mwifiex_ie_types_chan_list_param_set
);
365 if (bss_desc
->bcn_bss_co_2040
) {
366 bss_co_2040
= (struct mwifiex_ie_types_2040bssco
*) *buffer
;
367 memset(bss_co_2040
, 0,
368 sizeof(struct mwifiex_ie_types_2040bssco
));
369 bss_co_2040
->header
.type
= cpu_to_le16(WLAN_EID_BSS_COEX_2040
);
370 bss_co_2040
->header
.len
=
371 cpu_to_le16(sizeof(bss_co_2040
->bss_co_2040
));
373 memcpy((u8
*) bss_co_2040
+
374 sizeof(struct mwifiex_ie_types_header
),
375 bss_desc
->bcn_bss_co_2040
+
376 sizeof(struct ieee_types_header
),
377 le16_to_cpu(bss_co_2040
->header
.len
));
379 *buffer
+= sizeof(struct mwifiex_ie_types_2040bssco
);
380 ret_len
+= sizeof(struct mwifiex_ie_types_2040bssco
);
383 if (bss_desc
->bcn_ext_cap
) {
384 ext_cap
= (struct mwifiex_ie_types_extcap
*) *buffer
;
385 memset(ext_cap
, 0, sizeof(struct mwifiex_ie_types_extcap
));
386 ext_cap
->header
.type
= cpu_to_le16(WLAN_EID_EXT_CAPABILITY
);
387 ext_cap
->header
.len
= cpu_to_le16(sizeof(ext_cap
->ext_cap
));
389 memcpy((u8
*)ext_cap
+ sizeof(struct mwifiex_ie_types_header
),
390 bss_desc
->bcn_ext_cap
+ sizeof(struct ieee_types_header
),
391 le16_to_cpu(ext_cap
->header
.len
));
393 *buffer
+= sizeof(struct mwifiex_ie_types_extcap
);
394 ret_len
+= sizeof(struct mwifiex_ie_types_extcap
);
401 * This function reconfigures the Tx buffer size in firmware.
403 * This function prepares a firmware command and issues it, if
404 * the current Tx buffer size is different from the one requested.
405 * Maximum configurable Tx buffer size is limited by the HT capability
409 mwifiex_cfg_tx_buf(struct mwifiex_private
*priv
,
410 struct mwifiex_bssdescriptor
*bss_desc
)
412 u16 max_amsdu
= MWIFIEX_TX_DATA_BUF_SIZE_2K
;
413 u16 tx_buf
, curr_tx_buf_size
= 0;
415 if (bss_desc
->bcn_ht_cap
) {
416 if (le16_to_cpu(bss_desc
->bcn_ht_cap
->cap_info
) &
417 IEEE80211_HT_CAP_MAX_AMSDU
)
418 max_amsdu
= MWIFIEX_TX_DATA_BUF_SIZE_8K
;
420 max_amsdu
= MWIFIEX_TX_DATA_BUF_SIZE_4K
;
423 tx_buf
= min(priv
->adapter
->max_tx_buf_size
, max_amsdu
);
425 dev_dbg(priv
->adapter
->dev
, "info: max_amsdu=%d, max_tx_buf=%d\n",
426 max_amsdu
, priv
->adapter
->max_tx_buf_size
);
428 if (priv
->adapter
->curr_tx_buf_size
<= MWIFIEX_TX_DATA_BUF_SIZE_2K
)
429 curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_2K
;
430 else if (priv
->adapter
->curr_tx_buf_size
<= MWIFIEX_TX_DATA_BUF_SIZE_4K
)
431 curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_4K
;
432 else if (priv
->adapter
->curr_tx_buf_size
<= MWIFIEX_TX_DATA_BUF_SIZE_8K
)
433 curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_8K
;
434 if (curr_tx_buf_size
!= tx_buf
)
435 mwifiex_send_cmd_async(priv
, HostCmd_CMD_RECONFIGURE_TX_BUFF
,
436 HostCmd_ACT_GEN_SET
, 0, &tx_buf
);
440 * This function checks if the given pointer is valid entry of
441 * Tx BA Stream table.
443 static int mwifiex_is_tx_ba_stream_ptr_valid(struct mwifiex_private
*priv
,
444 struct mwifiex_tx_ba_stream_tbl
*tx_tbl_ptr
)
446 struct mwifiex_tx_ba_stream_tbl
*tx_ba_tsr_tbl
;
448 list_for_each_entry(tx_ba_tsr_tbl
, &priv
->tx_ba_stream_tbl_ptr
, list
) {
449 if (tx_ba_tsr_tbl
== tx_tbl_ptr
)
457 * This function deletes the given entry in Tx BA Stream table.
459 * The function also performs a validity check on the supplied
460 * pointer before trying to delete.
462 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private
*priv
,
463 struct mwifiex_tx_ba_stream_tbl
*tx_ba_tsr_tbl
)
465 if (!tx_ba_tsr_tbl
&&
466 mwifiex_is_tx_ba_stream_ptr_valid(priv
, tx_ba_tsr_tbl
))
469 dev_dbg(priv
->adapter
->dev
, "info: tx_ba_tsr_tbl %p\n", tx_ba_tsr_tbl
);
471 list_del(&tx_ba_tsr_tbl
->list
);
473 kfree(tx_ba_tsr_tbl
);
477 * This function deletes all the entries in Tx BA Stream table.
479 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private
*priv
)
482 struct mwifiex_tx_ba_stream_tbl
*del_tbl_ptr
, *tmp_node
;
485 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
486 list_for_each_entry_safe(del_tbl_ptr
, tmp_node
,
487 &priv
->tx_ba_stream_tbl_ptr
, list
)
488 mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv
, del_tbl_ptr
);
489 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
, flags
);
491 INIT_LIST_HEAD(&priv
->tx_ba_stream_tbl_ptr
);
493 for (i
= 0; i
< MAX_NUM_TID
; ++i
)
494 priv
->aggr_prio_tbl
[i
].ampdu_ap
=
495 priv
->aggr_prio_tbl
[i
].ampdu_user
;
499 * This function returns the pointer to an entry in BA Stream
500 * table which matches the given RA/TID pair.
502 struct mwifiex_tx_ba_stream_tbl
*
503 mwifiex_get_ba_tbl(struct mwifiex_private
*priv
, int tid
, u8
*ra
)
505 struct mwifiex_tx_ba_stream_tbl
*tx_ba_tsr_tbl
;
508 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
509 list_for_each_entry(tx_ba_tsr_tbl
, &priv
->tx_ba_stream_tbl_ptr
, list
) {
510 if (!memcmp(tx_ba_tsr_tbl
->ra
, ra
, ETH_ALEN
) &&
511 tx_ba_tsr_tbl
->tid
== tid
) {
512 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
,
514 return tx_ba_tsr_tbl
;
517 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
, flags
);
522 * This function creates an entry in Tx BA stream table for the
525 void mwifiex_create_ba_tbl(struct mwifiex_private
*priv
, u8
*ra
, int tid
,
526 enum mwifiex_ba_status ba_status
)
528 struct mwifiex_tx_ba_stream_tbl
*new_node
;
531 if (!mwifiex_get_ba_tbl(priv
, tid
, ra
)) {
532 new_node
= kzalloc(sizeof(struct mwifiex_tx_ba_stream_tbl
),
535 dev_err(priv
->adapter
->dev
,
536 "%s: failed to alloc new_node\n", __func__
);
540 INIT_LIST_HEAD(&new_node
->list
);
543 new_node
->ba_status
= ba_status
;
544 memcpy(new_node
->ra
, ra
, ETH_ALEN
);
546 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
547 list_add_tail(&new_node
->list
, &priv
->tx_ba_stream_tbl_ptr
);
548 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
, flags
);
553 * This function sends an add BA request to the given TID/RA pair.
555 int mwifiex_send_addba(struct mwifiex_private
*priv
, int tid
, u8
*peer_mac
)
557 struct host_cmd_ds_11n_addba_req add_ba_req
;
558 static u8 dialog_tok
;
561 dev_dbg(priv
->adapter
->dev
, "cmd: %s: tid %d\n", __func__
, tid
);
563 add_ba_req
.block_ack_param_set
= cpu_to_le16(
564 (u16
) ((tid
<< BLOCKACKPARAM_TID_POS
) |
566 tx_win_size
<< BLOCKACKPARAM_WINSIZE_POS
) |
567 IMMEDIATE_BLOCK_ACK
));
568 add_ba_req
.block_ack_tmo
= cpu_to_le16((u16
)priv
->add_ba_param
.timeout
);
575 add_ba_req
.dialog_token
= dialog_tok
;
576 memcpy(&add_ba_req
.peer_mac_addr
, peer_mac
, ETH_ALEN
);
578 /* We don't wait for the response of this command */
579 ret
= mwifiex_send_cmd_async(priv
, HostCmd_CMD_11N_ADDBA_REQ
,
586 * This function sends a delete BA request to the given TID/RA pair.
588 int mwifiex_send_delba(struct mwifiex_private
*priv
, int tid
, u8
*peer_mac
,
591 struct host_cmd_ds_11n_delba delba
;
593 uint16_t del_ba_param_set
;
595 memset(&delba
, 0, sizeof(delba
));
596 delba
.del_ba_param_set
= cpu_to_le16(tid
<< DELBA_TID_POS
);
598 del_ba_param_set
= le16_to_cpu(delba
.del_ba_param_set
);
600 del_ba_param_set
|= IEEE80211_DELBA_PARAM_INITIATOR_MASK
;
602 del_ba_param_set
&= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK
;
604 memcpy(&delba
.peer_mac_addr
, peer_mac
, ETH_ALEN
);
606 /* We don't wait for the response of this command */
607 ret
= mwifiex_send_cmd_async(priv
, HostCmd_CMD_11N_DELBA
,
608 HostCmd_ACT_GEN_SET
, 0, &delba
);
614 * This function handles the command response of a delete BA request.
616 void mwifiex_11n_delete_ba_stream(struct mwifiex_private
*priv
, u8
*del_ba
)
618 struct host_cmd_ds_11n_delba
*cmd_del_ba
=
619 (struct host_cmd_ds_11n_delba
*) del_ba
;
620 uint16_t del_ba_param_set
= le16_to_cpu(cmd_del_ba
->del_ba_param_set
);
623 tid
= del_ba_param_set
>> DELBA_TID_POS
;
625 mwifiex_del_ba_tbl(priv
, tid
, cmd_del_ba
->peer_mac_addr
,
626 TYPE_DELBA_RECEIVE
, INITIATOR_BIT(del_ba_param_set
));
630 * This function retrieves the Rx reordering table.
632 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private
*priv
,
633 struct mwifiex_ds_rx_reorder_tbl
*buf
)
636 struct mwifiex_ds_rx_reorder_tbl
*rx_reo_tbl
= buf
;
637 struct mwifiex_rx_reorder_tbl
*rx_reorder_tbl_ptr
;
641 spin_lock_irqsave(&priv
->rx_reorder_tbl_lock
, flags
);
642 list_for_each_entry(rx_reorder_tbl_ptr
, &priv
->rx_reorder_tbl_ptr
,
644 rx_reo_tbl
->tid
= (u16
) rx_reorder_tbl_ptr
->tid
;
645 memcpy(rx_reo_tbl
->ta
, rx_reorder_tbl_ptr
->ta
, ETH_ALEN
);
646 rx_reo_tbl
->start_win
= rx_reorder_tbl_ptr
->start_win
;
647 rx_reo_tbl
->win_size
= rx_reorder_tbl_ptr
->win_size
;
648 for (i
= 0; i
< rx_reorder_tbl_ptr
->win_size
; ++i
) {
649 if (rx_reorder_tbl_ptr
->rx_reorder_ptr
[i
])
650 rx_reo_tbl
->buffer
[i
] = true;
652 rx_reo_tbl
->buffer
[i
] = false;
657 if (count
>= MWIFIEX_MAX_RX_BASTREAM_SUPPORTED
)
660 spin_unlock_irqrestore(&priv
->rx_reorder_tbl_lock
, flags
);
666 * This function retrieves the Tx BA stream table.
668 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private
*priv
,
669 struct mwifiex_ds_tx_ba_stream_tbl
*buf
)
671 struct mwifiex_tx_ba_stream_tbl
*tx_ba_tsr_tbl
;
672 struct mwifiex_ds_tx_ba_stream_tbl
*rx_reo_tbl
= buf
;
676 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
677 list_for_each_entry(tx_ba_tsr_tbl
, &priv
->tx_ba_stream_tbl_ptr
, list
) {
678 rx_reo_tbl
->tid
= (u16
) tx_ba_tsr_tbl
->tid
;
679 dev_dbg(priv
->adapter
->dev
, "data: %s tid=%d\n",
680 __func__
, rx_reo_tbl
->tid
);
681 memcpy(rx_reo_tbl
->ra
, tx_ba_tsr_tbl
->ra
, ETH_ALEN
);
684 if (count
>= MWIFIEX_MAX_TX_BASTREAM_SUPPORTED
)
687 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
, flags
);
693 * This function retrieves the entry for specific tx BA stream table by RA and
696 void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private
*priv
, u8
*ra
)
698 struct mwifiex_tx_ba_stream_tbl
*tbl
, *tmp
;
704 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
705 list_for_each_entry_safe(tbl
, tmp
, &priv
->tx_ba_stream_tbl_ptr
, list
) {
706 if (!memcmp(tbl
->ra
, ra
, ETH_ALEN
)) {
707 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
,
709 mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv
, tbl
);
710 spin_lock_irqsave(&priv
->tx_ba_stream_tbl_lock
, flags
);
713 spin_unlock_irqrestore(&priv
->tx_ba_stream_tbl_lock
, flags
);