2 * Marvell Wireless LAN device driver: WMM
4 * Copyright (C) 2011-2014, 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 /* Maximum value FW can accept for driver delay in packet transmission */
30 #define DRV_PKT_DELAY_TO_FW_MAX 512
33 #define WMM_QUEUED_PACKET_LOWER_LIMIT 180
35 #define WMM_QUEUED_PACKET_UPPER_LIMIT 200
37 /* Offset for TOS field in the IP header */
38 #define IPTOS_OFFSET 5
40 static bool disable_tx_amsdu
;
41 module_param(disable_tx_amsdu
, bool, 0644);
43 /* WMM information IE */
44 static const u8 wmm_info_ie
[] = { WLAN_EID_VENDOR_SPECIFIC
, 0x07,
45 0x00, 0x50, 0xf2, 0x02,
49 static const u8 wmm_aci_to_qidx_map
[] = { WMM_AC_BE
,
55 static u8 tos_to_tid
[] = {
56 /* TID DSCP_P2 DSCP_P1 DSCP_P0 WMM_AC */
57 0x01, /* 0 1 0 AC_BK */
58 0x02, /* 0 0 0 AC_BK */
59 0x00, /* 0 0 1 AC_BE */
60 0x03, /* 0 1 1 AC_BE */
61 0x04, /* 1 0 0 AC_VI */
62 0x05, /* 1 0 1 AC_VI */
63 0x06, /* 1 1 0 AC_VO */
64 0x07 /* 1 1 1 AC_VO */
67 static u8 ac_to_tid
[4][2] = { {1, 2}, {0, 3}, {4, 5}, {6, 7} };
70 * This function debug prints the priority parameters for a WMM AC.
73 mwifiex_wmm_ac_debug_print(const struct ieee_types_wmm_ac_parameters
*ac_param
)
75 const char *ac_str
[] = { "BK", "BE", "VI", "VO" };
77 pr_debug("info: WMM AC_%s: ACI=%d, ACM=%d, Aifsn=%d, "
78 "EcwMin=%d, EcwMax=%d, TxopLimit=%d\n",
79 ac_str
[wmm_aci_to_qidx_map
[(ac_param
->aci_aifsn_bitmap
80 & MWIFIEX_ACI
) >> 5]],
81 (ac_param
->aci_aifsn_bitmap
& MWIFIEX_ACI
) >> 5,
82 (ac_param
->aci_aifsn_bitmap
& MWIFIEX_ACM
) >> 4,
83 ac_param
->aci_aifsn_bitmap
& MWIFIEX_AIFSN
,
84 ac_param
->ecw_bitmap
& MWIFIEX_ECW_MIN
,
85 (ac_param
->ecw_bitmap
& MWIFIEX_ECW_MAX
) >> 4,
86 le16_to_cpu(ac_param
->tx_op_limit
));
90 * This function allocates a route address list.
92 * The function also initializes the list with the provided RA.
94 static struct mwifiex_ra_list_tbl
*
95 mwifiex_wmm_allocate_ralist_node(struct mwifiex_adapter
*adapter
, const u8
*ra
)
97 struct mwifiex_ra_list_tbl
*ra_list
;
99 ra_list
= kzalloc(sizeof(struct mwifiex_ra_list_tbl
), GFP_ATOMIC
);
103 INIT_LIST_HEAD(&ra_list
->list
);
104 skb_queue_head_init(&ra_list
->skb_head
);
106 memcpy(ra_list
->ra
, ra
, ETH_ALEN
);
108 ra_list
->total_pkt_count
= 0;
110 mwifiex_dbg(adapter
, INFO
, "info: allocated ra_list %p\n", ra_list
);
115 /* This function returns random no between 16 and 32 to be used as threshold
116 * for no of packets after which BA setup is initiated.
118 static u8
mwifiex_get_random_ba_threshold(void)
121 struct timeval ba_tstamp
;
124 /* setup ba_packet_threshold here random number between
125 * [BA_SETUP_PACKET_OFFSET,
126 * BA_SETUP_PACKET_OFFSET+BA_SETUP_MAX_PACKET_THRESHOLD-1]
129 do_gettimeofday(&ba_tstamp
);
130 sec
= (ba_tstamp
.tv_sec
& 0xFFFF) + (ba_tstamp
.tv_sec
>> 16);
131 usec
= (ba_tstamp
.tv_usec
& 0xFFFF) + (ba_tstamp
.tv_usec
>> 16);
132 ba_threshold
= (((sec
<< 16) + usec
) % BA_SETUP_MAX_PACKET_THRESHOLD
)
133 + BA_SETUP_PACKET_OFFSET
;
139 * This function allocates and adds a RA list for all TIDs
142 void mwifiex_ralist_add(struct mwifiex_private
*priv
, const u8
*ra
)
145 struct mwifiex_ra_list_tbl
*ra_list
;
146 struct mwifiex_adapter
*adapter
= priv
->adapter
;
147 struct mwifiex_sta_node
*node
;
151 for (i
= 0; i
< MAX_NUM_TID
; ++i
) {
152 ra_list
= mwifiex_wmm_allocate_ralist_node(adapter
, ra
);
153 mwifiex_dbg(adapter
, INFO
,
154 "info: created ra_list %p\n", ra_list
);
159 ra_list
->is_11n_enabled
= 0;
160 ra_list
->tdls_link
= false;
161 ra_list
->ba_status
= BA_SETUP_NONE
;
162 ra_list
->amsdu_in_ampdu
= false;
163 if (!mwifiex_queuing_ra_based(priv
)) {
164 if (mwifiex_get_tdls_link_status(priv
, ra
) ==
165 TDLS_SETUP_COMPLETE
) {
166 ra_list
->tdls_link
= true;
167 ra_list
->is_11n_enabled
=
168 mwifiex_tdls_peer_11n_enabled(priv
, ra
);
170 ra_list
->is_11n_enabled
= IS_11N_ENABLED(priv
);
173 spin_lock_irqsave(&priv
->sta_list_spinlock
, flags
);
174 node
= mwifiex_get_sta_entry(priv
, ra
);
175 ra_list
->is_11n_enabled
=
176 mwifiex_is_sta_11n_enabled(priv
, node
);
177 if (ra_list
->is_11n_enabled
)
178 ra_list
->max_amsdu
= node
->max_amsdu
;
179 spin_unlock_irqrestore(&priv
->sta_list_spinlock
, flags
);
182 mwifiex_dbg(adapter
, DATA
, "data: ralist %p: is_11n_enabled=%d\n",
183 ra_list
, ra_list
->is_11n_enabled
);
185 if (ra_list
->is_11n_enabled
) {
186 ra_list
->ba_pkt_count
= 0;
187 ra_list
->ba_packet_thr
=
188 mwifiex_get_random_ba_threshold();
190 list_add_tail(&ra_list
->list
,
191 &priv
->wmm
.tid_tbl_ptr
[i
].ra_list
);
196 * This function sets the WMM queue priorities to their default values.
198 static void mwifiex_wmm_default_queue_priorities(struct mwifiex_private
*priv
)
200 /* Default queue priorities: VO->VI->BE->BK */
201 priv
->wmm
.queue_priority
[0] = WMM_AC_VO
;
202 priv
->wmm
.queue_priority
[1] = WMM_AC_VI
;
203 priv
->wmm
.queue_priority
[2] = WMM_AC_BE
;
204 priv
->wmm
.queue_priority
[3] = WMM_AC_BK
;
208 * This function map ACs to TIDs.
211 mwifiex_wmm_queue_priorities_tid(struct mwifiex_private
*priv
)
213 struct mwifiex_wmm_desc
*wmm
= &priv
->wmm
;
214 u8
*queue_priority
= wmm
->queue_priority
;
217 for (i
= 0; i
< 4; ++i
) {
218 tos_to_tid
[7 - (i
* 2)] = ac_to_tid
[queue_priority
[i
]][1];
219 tos_to_tid
[6 - (i
* 2)] = ac_to_tid
[queue_priority
[i
]][0];
222 for (i
= 0; i
< MAX_NUM_TID
; ++i
)
223 priv
->tos_to_tid_inv
[tos_to_tid
[i
]] = (u8
)i
;
225 atomic_set(&wmm
->highest_queued_prio
, HIGH_PRIO_TID
);
229 * This function initializes WMM priority queues.
232 mwifiex_wmm_setup_queue_priorities(struct mwifiex_private
*priv
,
233 struct ieee_types_wmm_parameter
*wmm_ie
)
235 u16 cw_min
, avg_back_off
, tmp
[4];
239 if (!wmm_ie
|| !priv
->wmm_enabled
) {
240 /* WMM is not enabled, just set the defaults and return */
241 mwifiex_wmm_default_queue_priorities(priv
);
245 mwifiex_dbg(priv
->adapter
, INFO
,
246 "info: WMM Parameter IE: version=%d,\t"
247 "qos_info Parameter Set Count=%d, Reserved=%#x\n",
248 wmm_ie
->vend_hdr
.version
, wmm_ie
->qos_info_bitmap
&
249 IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK
,
252 for (num_ac
= 0; num_ac
< ARRAY_SIZE(wmm_ie
->ac_params
); num_ac
++) {
253 u8 ecw
= wmm_ie
->ac_params
[num_ac
].ecw_bitmap
;
254 u8 aci_aifsn
= wmm_ie
->ac_params
[num_ac
].aci_aifsn_bitmap
;
255 cw_min
= (1 << (ecw
& MWIFIEX_ECW_MIN
)) - 1;
256 avg_back_off
= (cw_min
>> 1) + (aci_aifsn
& MWIFIEX_AIFSN
);
258 ac_idx
= wmm_aci_to_qidx_map
[(aci_aifsn
& MWIFIEX_ACI
) >> 5];
259 priv
->wmm
.queue_priority
[ac_idx
] = ac_idx
;
260 tmp
[ac_idx
] = avg_back_off
;
262 mwifiex_dbg(priv
->adapter
, INFO
,
263 "info: WMM: CWmax=%d CWmin=%d Avg Back-off=%d\n",
264 (1 << ((ecw
& MWIFIEX_ECW_MAX
) >> 4)) - 1,
265 cw_min
, avg_back_off
);
266 mwifiex_wmm_ac_debug_print(&wmm_ie
->ac_params
[num_ac
]);
270 for (i
= 0; i
< num_ac
; i
++) {
271 for (j
= 1; j
< num_ac
- i
; j
++) {
272 if (tmp
[j
- 1] > tmp
[j
]) {
273 swap(tmp
[j
- 1], tmp
[j
]);
274 swap(priv
->wmm
.queue_priority
[j
- 1],
275 priv
->wmm
.queue_priority
[j
]);
276 } else if (tmp
[j
- 1] == tmp
[j
]) {
277 if (priv
->wmm
.queue_priority
[j
- 1]
278 < priv
->wmm
.queue_priority
[j
])
279 swap(priv
->wmm
.queue_priority
[j
- 1],
280 priv
->wmm
.queue_priority
[j
]);
285 mwifiex_wmm_queue_priorities_tid(priv
);
289 * This function evaluates whether or not an AC is to be downgraded.
291 * In case the AC is not enabled, the highest AC is returned that is
292 * enabled and does not require admission control.
294 static enum mwifiex_wmm_ac_e
295 mwifiex_wmm_eval_downgrade_ac(struct mwifiex_private
*priv
,
296 enum mwifiex_wmm_ac_e eval_ac
)
299 enum mwifiex_wmm_ac_e ret_ac
;
300 struct mwifiex_wmm_ac_status
*ac_status
;
302 ac_status
= &priv
->wmm
.ac_status
[eval_ac
];
304 if (!ac_status
->disabled
)
305 /* Okay to use this AC, its enabled */
308 /* Setup a default return value of the lowest priority */
312 * Find the highest AC that is enabled and does not require
313 * admission control. The spec disallows downgrading to an AC,
314 * which is enabled due to a completed admission control.
315 * Unadmitted traffic is not to be sent on an AC with admitted
318 for (down_ac
= WMM_AC_BK
; down_ac
< eval_ac
; down_ac
++) {
319 ac_status
= &priv
->wmm
.ac_status
[down_ac
];
321 if (!ac_status
->disabled
&& !ac_status
->flow_required
)
322 /* AC is enabled and does not require admission
324 ret_ac
= (enum mwifiex_wmm_ac_e
) down_ac
;
331 * This function downgrades WMM priority queue.
334 mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private
*priv
)
338 mwifiex_dbg(priv
->adapter
, INFO
, "info: WMM: AC Priorities:\t"
339 "BK(0), BE(1), VI(2), VO(3)\n");
341 if (!priv
->wmm_enabled
) {
342 /* WMM is not enabled, default priorities */
343 for (ac_val
= WMM_AC_BK
; ac_val
<= WMM_AC_VO
; ac_val
++)
344 priv
->wmm
.ac_down_graded_vals
[ac_val
] =
345 (enum mwifiex_wmm_ac_e
) ac_val
;
347 for (ac_val
= WMM_AC_BK
; ac_val
<= WMM_AC_VO
; ac_val
++) {
348 priv
->wmm
.ac_down_graded_vals
[ac_val
]
349 = mwifiex_wmm_eval_downgrade_ac(priv
,
350 (enum mwifiex_wmm_ac_e
) ac_val
);
351 mwifiex_dbg(priv
->adapter
, INFO
,
352 "info: WMM: AC PRIO %d maps to %d\n",
354 priv
->wmm
.ac_down_graded_vals
[ac_val
]);
360 * This function converts the IP TOS field to an WMM AC
363 static enum mwifiex_wmm_ac_e
364 mwifiex_wmm_convert_tos_to_ac(struct mwifiex_adapter
*adapter
, u32 tos
)
366 /* Map of TOS UP values to WMM AC */
367 const enum mwifiex_wmm_ac_e tos_to_ac
[] = { WMM_AC_BE
,
377 if (tos
>= ARRAY_SIZE(tos_to_ac
))
380 return tos_to_ac
[tos
];
384 * This function evaluates a given TID and downgrades it to a lower
385 * TID if the WMM Parameter IE received from the AP indicates that the
386 * AP is disabled (due to call admission control (ACM bit). Mapping
387 * of TID to AC is taken care of internally.
389 u8
mwifiex_wmm_downgrade_tid(struct mwifiex_private
*priv
, u32 tid
)
391 enum mwifiex_wmm_ac_e ac
, ac_down
;
394 ac
= mwifiex_wmm_convert_tos_to_ac(priv
->adapter
, tid
);
395 ac_down
= priv
->wmm
.ac_down_graded_vals
[ac
];
397 /* Send the index to tid array, picking from the array will be
398 * taken care by dequeuing function
400 new_tid
= ac_to_tid
[ac_down
][tid
% 2];
406 * This function initializes the WMM state information and the
407 * WMM data path queues.
410 mwifiex_wmm_init(struct mwifiex_adapter
*adapter
)
413 struct mwifiex_private
*priv
;
415 for (j
= 0; j
< adapter
->priv_num
; ++j
) {
416 priv
= adapter
->priv
[j
];
420 for (i
= 0; i
< MAX_NUM_TID
; ++i
) {
421 if (!disable_tx_amsdu
&&
422 adapter
->tx_buf_size
> MWIFIEX_TX_DATA_BUF_SIZE_2K
)
423 priv
->aggr_prio_tbl
[i
].amsdu
=
424 priv
->tos_to_tid_inv
[i
];
426 priv
->aggr_prio_tbl
[i
].amsdu
=
427 BA_STREAM_NOT_ALLOWED
;
428 priv
->aggr_prio_tbl
[i
].ampdu_ap
=
429 priv
->tos_to_tid_inv
[i
];
430 priv
->aggr_prio_tbl
[i
].ampdu_user
=
431 priv
->tos_to_tid_inv
[i
];
434 priv
->aggr_prio_tbl
[6].amsdu
435 = priv
->aggr_prio_tbl
[6].ampdu_ap
436 = priv
->aggr_prio_tbl
[6].ampdu_user
437 = BA_STREAM_NOT_ALLOWED
;
439 priv
->aggr_prio_tbl
[7].amsdu
= priv
->aggr_prio_tbl
[7].ampdu_ap
440 = priv
->aggr_prio_tbl
[7].ampdu_user
441 = BA_STREAM_NOT_ALLOWED
;
443 mwifiex_set_ba_params(priv
);
444 mwifiex_reset_11n_rx_seq_num(priv
);
446 atomic_set(&priv
->wmm
.tx_pkts_queued
, 0);
447 atomic_set(&priv
->wmm
.highest_queued_prio
, HIGH_PRIO_TID
);
452 * This function checks if WMM Tx queue is empty.
455 mwifiex_wmm_lists_empty(struct mwifiex_adapter
*adapter
)
458 struct mwifiex_private
*priv
;
460 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
461 priv
= adapter
->priv
[i
];
462 if (priv
&& atomic_read(&priv
->wmm
.tx_pkts_queued
))
470 * This function deletes all packets in an RA list node.
472 * The packet sent completion callback handler are called with
473 * status failure, after they are dequeued to ensure proper
474 * cleanup. The RA list node itself is freed at the end.
477 mwifiex_wmm_del_pkts_in_ralist_node(struct mwifiex_private
*priv
,
478 struct mwifiex_ra_list_tbl
*ra_list
)
480 struct mwifiex_adapter
*adapter
= priv
->adapter
;
481 struct sk_buff
*skb
, *tmp
;
483 skb_queue_walk_safe(&ra_list
->skb_head
, skb
, tmp
)
484 mwifiex_write_data_complete(adapter
, skb
, 0, -1);
488 * This function deletes all packets in an RA list.
490 * Each nodes in the RA list are freed individually first, and then
491 * the RA list itself is freed.
494 mwifiex_wmm_del_pkts_in_ralist(struct mwifiex_private
*priv
,
495 struct list_head
*ra_list_head
)
497 struct mwifiex_ra_list_tbl
*ra_list
;
499 list_for_each_entry(ra_list
, ra_list_head
, list
)
500 mwifiex_wmm_del_pkts_in_ralist_node(priv
, ra_list
);
504 * This function deletes all packets in all RA lists.
506 static void mwifiex_wmm_cleanup_queues(struct mwifiex_private
*priv
)
510 for (i
= 0; i
< MAX_NUM_TID
; i
++)
511 mwifiex_wmm_del_pkts_in_ralist(priv
, &priv
->wmm
.tid_tbl_ptr
[i
].
514 atomic_set(&priv
->wmm
.tx_pkts_queued
, 0);
515 atomic_set(&priv
->wmm
.highest_queued_prio
, HIGH_PRIO_TID
);
519 * This function deletes all route addresses from all RA lists.
521 static void mwifiex_wmm_delete_all_ralist(struct mwifiex_private
*priv
)
523 struct mwifiex_ra_list_tbl
*ra_list
, *tmp_node
;
526 for (i
= 0; i
< MAX_NUM_TID
; ++i
) {
527 mwifiex_dbg(priv
->adapter
, INFO
,
528 "info: ra_list: freeing buf for tid %d\n", i
);
529 list_for_each_entry_safe(ra_list
, tmp_node
,
530 &priv
->wmm
.tid_tbl_ptr
[i
].ra_list
,
532 list_del(&ra_list
->list
);
536 INIT_LIST_HEAD(&priv
->wmm
.tid_tbl_ptr
[i
].ra_list
);
540 static int mwifiex_free_ack_frame(int id
, void *p
, void *data
)
542 pr_warn("Have pending ack frames!\n");
548 * This function cleans up the Tx and Rx queues.
551 * - All packets in RA lists
552 * - All entries in Rx reorder table
553 * - All entries in Tx BA stream table
554 * - MPA buffer (if required)
558 mwifiex_clean_txrx(struct mwifiex_private
*priv
)
561 struct sk_buff
*skb
, *tmp
;
563 mwifiex_11n_cleanup_reorder_tbl(priv
);
564 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, flags
);
566 mwifiex_wmm_cleanup_queues(priv
);
567 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv
);
569 if (priv
->adapter
->if_ops
.cleanup_mpa_buf
)
570 priv
->adapter
->if_ops
.cleanup_mpa_buf(priv
->adapter
);
572 mwifiex_wmm_delete_all_ralist(priv
);
573 memcpy(tos_to_tid
, ac_to_tid
, sizeof(tos_to_tid
));
575 if (priv
->adapter
->if_ops
.clean_pcie_ring
&&
576 !priv
->adapter
->surprise_removed
)
577 priv
->adapter
->if_ops
.clean_pcie_ring(priv
->adapter
);
578 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
580 skb_queue_walk_safe(&priv
->tdls_txq
, skb
, tmp
)
581 mwifiex_write_data_complete(priv
->adapter
, skb
, 0, -1);
583 idr_for_each(&priv
->ack_status_frames
, mwifiex_free_ack_frame
, NULL
);
584 idr_destroy(&priv
->ack_status_frames
);
588 * This function retrieves a particular RA list node, matching with the
589 * given TID and RA address.
591 struct mwifiex_ra_list_tbl
*
592 mwifiex_wmm_get_ralist_node(struct mwifiex_private
*priv
, u8 tid
,
595 struct mwifiex_ra_list_tbl
*ra_list
;
597 list_for_each_entry(ra_list
, &priv
->wmm
.tid_tbl_ptr
[tid
].ra_list
,
599 if (!memcmp(ra_list
->ra
, ra_addr
, ETH_ALEN
))
607 * This function retrieves an RA list node for a given TID and
610 * If no such node is found, a new node is added first and then
613 struct mwifiex_ra_list_tbl
*
614 mwifiex_wmm_get_queue_raptr(struct mwifiex_private
*priv
, u8 tid
,
617 struct mwifiex_ra_list_tbl
*ra_list
;
619 ra_list
= mwifiex_wmm_get_ralist_node(priv
, tid
, ra_addr
);
622 mwifiex_ralist_add(priv
, ra_addr
);
624 return mwifiex_wmm_get_ralist_node(priv
, tid
, ra_addr
);
628 * This function deletes RA list nodes for given mac for all TIDs.
629 * Function also decrements TX pending count accordingly.
632 mwifiex_wmm_del_peer_ra_list(struct mwifiex_private
*priv
, const u8
*ra_addr
)
634 struct mwifiex_ra_list_tbl
*ra_list
;
638 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, flags
);
640 for (i
= 0; i
< MAX_NUM_TID
; ++i
) {
641 ra_list
= mwifiex_wmm_get_ralist_node(priv
, i
, ra_addr
);
645 mwifiex_wmm_del_pkts_in_ralist_node(priv
, ra_list
);
646 atomic_sub(ra_list
->total_pkt_count
, &priv
->wmm
.tx_pkts_queued
);
647 list_del(&ra_list
->list
);
650 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
654 * This function checks if a particular RA list node exists in a given TID
658 mwifiex_is_ralist_valid(struct mwifiex_private
*priv
,
659 struct mwifiex_ra_list_tbl
*ra_list
, int ptr_index
)
661 struct mwifiex_ra_list_tbl
*rlist
;
663 list_for_each_entry(rlist
, &priv
->wmm
.tid_tbl_ptr
[ptr_index
].ra_list
,
665 if (rlist
== ra_list
)
673 * This function adds a packet to WMM queue.
675 * In disconnected state the packet is immediately dropped and the
676 * packet send completion callback is called with status failure.
678 * Otherwise, the correct RA list node is located and the packet
679 * is queued at the list tail.
682 mwifiex_wmm_add_buf_txqueue(struct mwifiex_private
*priv
,
685 struct mwifiex_adapter
*adapter
= priv
->adapter
;
687 struct mwifiex_ra_list_tbl
*ra_list
;
688 u8 ra
[ETH_ALEN
], tid_down
;
690 struct list_head list_head
;
691 int tdls_status
= TDLS_NOT_SETUP
;
692 struct ethhdr
*eth_hdr
= (struct ethhdr
*)skb
->data
;
693 struct mwifiex_txinfo
*tx_info
= MWIFIEX_SKB_TXCB(skb
);
695 memcpy(ra
, eth_hdr
->h_dest
, ETH_ALEN
);
697 if (GET_BSS_ROLE(priv
) == MWIFIEX_BSS_ROLE_STA
&&
698 ISSUPP_TDLS_ENABLED(adapter
->fw_cap_info
)) {
699 if (ntohs(eth_hdr
->h_proto
) == ETH_P_TDLS
)
700 mwifiex_dbg(adapter
, DATA
,
701 "TDLS setup packet for %pM.\t"
702 "Don't block\n", ra
);
703 else if (memcmp(priv
->cfg_bssid
, ra
, ETH_ALEN
))
704 tdls_status
= mwifiex_get_tdls_link_status(priv
, ra
);
707 if (!priv
->media_connected
&& !mwifiex_is_skb_mgmt_frame(skb
)) {
708 mwifiex_dbg(adapter
, DATA
, "data: drop packet in disconnect\n");
709 mwifiex_write_data_complete(adapter
, skb
, 0, -1);
715 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, flags
);
717 tid_down
= mwifiex_wmm_downgrade_tid(priv
, tid
);
719 /* In case of infra as we have already created the list during
720 association we just don't have to call get_queue_raptr, we will
721 have only 1 raptr for a tid in case of infra */
722 if (!mwifiex_queuing_ra_based(priv
) &&
723 !mwifiex_is_skb_mgmt_frame(skb
)) {
724 switch (tdls_status
) {
725 case TDLS_SETUP_COMPLETE
:
726 ra_list
= mwifiex_wmm_get_queue_raptr(priv
, tid_down
,
728 tx_info
->flags
|= MWIFIEX_BUF_FLAG_TDLS_PKT
;
730 case TDLS_SETUP_INPROGRESS
:
731 skb_queue_tail(&priv
->tdls_txq
, skb
);
732 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
736 list_head
= priv
->wmm
.tid_tbl_ptr
[tid_down
].ra_list
;
737 if (!list_empty(&list_head
))
738 ra_list
= list_first_entry(
739 &list_head
, struct mwifiex_ra_list_tbl
,
746 memcpy(ra
, skb
->data
, ETH_ALEN
);
747 if (ra
[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb
))
748 eth_broadcast_addr(ra
);
749 ra_list
= mwifiex_wmm_get_queue_raptr(priv
, tid_down
, ra
);
753 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
754 mwifiex_write_data_complete(adapter
, skb
, 0, -1);
758 skb_queue_tail(&ra_list
->skb_head
, skb
);
760 ra_list
->ba_pkt_count
++;
761 ra_list
->total_pkt_count
++;
763 if (atomic_read(&priv
->wmm
.highest_queued_prio
) <
764 priv
->tos_to_tid_inv
[tid_down
])
765 atomic_set(&priv
->wmm
.highest_queued_prio
,
766 priv
->tos_to_tid_inv
[tid_down
]);
768 atomic_inc(&priv
->wmm
.tx_pkts_queued
);
770 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
774 * This function processes the get WMM status command response from firmware.
776 * The response may contain multiple TLVs -
777 * - AC Queue status TLVs
778 * - Current WMM Parameter IE TLV
779 * - Admission Control action frame TLVs
781 * This function parses the TLVs and then calls further specific functions
782 * to process any changes in the queue prioritize or state.
784 int mwifiex_ret_wmm_get_status(struct mwifiex_private
*priv
,
785 const struct host_cmd_ds_command
*resp
)
787 u8
*curr
= (u8
*) &resp
->params
.get_wmm_status
;
788 uint16_t resp_len
= le16_to_cpu(resp
->size
), tlv_len
;
789 int mask
= IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK
;
792 struct mwifiex_ie_types_data
*tlv_hdr
;
793 struct mwifiex_ie_types_wmm_queue_status
*tlv_wmm_qstatus
;
794 struct ieee_types_wmm_parameter
*wmm_param_ie
= NULL
;
795 struct mwifiex_wmm_ac_status
*ac_status
;
797 mwifiex_dbg(priv
->adapter
, INFO
,
798 "info: WMM: WMM_GET_STATUS cmdresp received: %d\n",
801 while ((resp_len
>= sizeof(tlv_hdr
->header
)) && valid
) {
802 tlv_hdr
= (struct mwifiex_ie_types_data
*) curr
;
803 tlv_len
= le16_to_cpu(tlv_hdr
->header
.len
);
805 if (resp_len
< tlv_len
+ sizeof(tlv_hdr
->header
))
808 switch (le16_to_cpu(tlv_hdr
->header
.type
)) {
809 case TLV_TYPE_WMMQSTATUS
:
811 (struct mwifiex_ie_types_wmm_queue_status
*)
813 mwifiex_dbg(priv
->adapter
, CMD
,
814 "info: CMD_RESP: WMM_GET_STATUS:\t"
815 "QSTATUS TLV: %d, %d, %d\n",
816 tlv_wmm_qstatus
->queue_index
,
817 tlv_wmm_qstatus
->flow_required
,
818 tlv_wmm_qstatus
->disabled
);
820 ac_status
= &priv
->wmm
.ac_status
[tlv_wmm_qstatus
->
822 ac_status
->disabled
= tlv_wmm_qstatus
->disabled
;
823 ac_status
->flow_required
=
824 tlv_wmm_qstatus
->flow_required
;
825 ac_status
->flow_created
= tlv_wmm_qstatus
->flow_created
;
828 case WLAN_EID_VENDOR_SPECIFIC
:
830 * Point the regular IEEE IE 2 bytes into the Marvell IE
831 * and setup the IEEE IE type and length byte fields
835 (struct ieee_types_wmm_parameter
*) (curr
+
837 wmm_param_ie
->vend_hdr
.len
= (u8
) tlv_len
;
838 wmm_param_ie
->vend_hdr
.element_id
=
839 WLAN_EID_VENDOR_SPECIFIC
;
841 mwifiex_dbg(priv
->adapter
, CMD
,
842 "info: CMD_RESP: WMM_GET_STATUS:\t"
843 "WMM Parameter Set Count: %d\n",
844 wmm_param_ie
->qos_info_bitmap
& mask
);
846 memcpy((u8
*) &priv
->curr_bss_params
.bss_descriptor
.
847 wmm_ie
, wmm_param_ie
,
848 wmm_param_ie
->vend_hdr
.len
+ 2);
857 curr
+= (tlv_len
+ sizeof(tlv_hdr
->header
));
858 resp_len
-= (tlv_len
+ sizeof(tlv_hdr
->header
));
861 mwifiex_wmm_setup_queue_priorities(priv
, wmm_param_ie
);
862 mwifiex_wmm_setup_ac_downgrade(priv
);
868 * Callback handler from the command module to allow insertion of a WMM TLV.
870 * If the BSS we are associating to supports WMM, this function adds the
871 * required WMM Information IE to the association request command buffer in
872 * the form of a Marvell extended IEEE IE.
875 mwifiex_wmm_process_association_req(struct mwifiex_private
*priv
,
877 struct ieee_types_wmm_parameter
*wmm_ie
,
878 struct ieee80211_ht_cap
*ht_cap
)
880 struct mwifiex_ie_types_wmm_param_set
*wmm_tlv
;
892 mwifiex_dbg(priv
->adapter
, INFO
,
893 "info: WMM: process assoc req: bss->wmm_ie=%#x\n",
894 wmm_ie
->vend_hdr
.element_id
);
896 if ((priv
->wmm_required
||
897 (ht_cap
&& (priv
->adapter
->config_bands
& BAND_GN
||
898 priv
->adapter
->config_bands
& BAND_AN
))) &&
899 wmm_ie
->vend_hdr
.element_id
== WLAN_EID_VENDOR_SPECIFIC
) {
900 wmm_tlv
= (struct mwifiex_ie_types_wmm_param_set
*) *assoc_buf
;
901 wmm_tlv
->header
.type
= cpu_to_le16((u16
) wmm_info_ie
[0]);
902 wmm_tlv
->header
.len
= cpu_to_le16((u16
) wmm_info_ie
[1]);
903 memcpy(wmm_tlv
->wmm_ie
, &wmm_info_ie
[2],
904 le16_to_cpu(wmm_tlv
->header
.len
));
905 if (wmm_ie
->qos_info_bitmap
& IEEE80211_WMM_IE_AP_QOSINFO_UAPSD
)
906 memcpy((u8
*) (wmm_tlv
->wmm_ie
907 + le16_to_cpu(wmm_tlv
->header
.len
)
908 - sizeof(priv
->wmm_qosinfo
)),
909 &priv
->wmm_qosinfo
, sizeof(priv
->wmm_qosinfo
));
911 ret_len
= sizeof(wmm_tlv
->header
)
912 + le16_to_cpu(wmm_tlv
->header
.len
);
914 *assoc_buf
+= ret_len
;
921 * This function computes the time delay in the driver queues for a
924 * When the packet is received at the OS/Driver interface, the current
925 * time is set in the packet structure. The difference between the present
926 * time and that received time is computed in this function and limited
927 * based on pre-compiled limits in the driver.
930 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private
*priv
,
931 const struct sk_buff
*skb
)
933 u32 queue_delay
= ktime_to_ms(net_timedelta(skb
->tstamp
));
937 * Queue delay is passed as a uint8 in units of 2ms (ms shifted
938 * by 1). Min value (other than 0) is therefore 2ms, max is 510ms.
940 * Pass max value if queue_delay is beyond the uint8 range
942 ret_val
= (u8
) (min(queue_delay
, priv
->wmm
.drv_pkt_delay_max
) >> 1);
944 mwifiex_dbg(priv
->adapter
, DATA
, "data: WMM: Pkt Delay: %d ms,\t"
945 "%d ms sent to FW\n", queue_delay
, ret_val
);
951 * This function retrieves the highest priority RA list table pointer.
953 static struct mwifiex_ra_list_tbl
*
954 mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter
*adapter
,
955 struct mwifiex_private
**priv
, int *tid
)
957 struct mwifiex_private
*priv_tmp
;
958 struct mwifiex_ra_list_tbl
*ptr
;
959 struct mwifiex_tid_tbl
*tid_ptr
;
961 unsigned long flags_ra
;
964 /* check the BSS with highest priority first */
965 for (j
= adapter
->priv_num
- 1; j
>= 0; --j
) {
966 /* iterate over BSS with the equal priority */
967 list_for_each_entry(adapter
->bss_prio_tbl
[j
].bss_prio_cur
,
968 &adapter
->bss_prio_tbl
[j
].bss_prio_head
,
971 priv_tmp
= adapter
->bss_prio_tbl
[j
].bss_prio_cur
->priv
;
973 if (atomic_read(&priv_tmp
->wmm
.tx_pkts_queued
) == 0)
976 /* iterate over the WMM queues of the BSS */
977 hqp
= &priv_tmp
->wmm
.highest_queued_prio
;
978 for (i
= atomic_read(hqp
); i
>= LOW_PRIO_TID
; --i
) {
980 spin_lock_irqsave(&priv_tmp
->wmm
.
981 ra_list_spinlock
, flags_ra
);
983 tid_ptr
= &(priv_tmp
)->wmm
.
984 tid_tbl_ptr
[tos_to_tid
[i
]];
986 /* iterate over receiver addresses */
987 list_for_each_entry(ptr
, &tid_ptr
->ra_list
,
990 if (!skb_queue_empty(&ptr
->skb_head
))
991 /* holds both locks */
995 spin_unlock_irqrestore(&priv_tmp
->wmm
.
1006 /* holds ra_list_spinlock */
1007 if (atomic_read(hqp
) > i
)
1009 spin_unlock_irqrestore(&priv_tmp
->wmm
.ra_list_spinlock
, flags_ra
);
1012 *tid
= tos_to_tid
[i
];
1017 /* This functions rotates ra and bss lists so packets are picked round robin.
1019 * After a packet is successfully transmitted, rotate the ra list, so the ra
1020 * next to the one transmitted, will come first in the list. This way we pick
1021 * the ra' in a round robin fashion. Same applies to bss nodes of equal
1024 * Function also increments wmm.packets_out counter.
1026 void mwifiex_rotate_priolists(struct mwifiex_private
*priv
,
1027 struct mwifiex_ra_list_tbl
*ra
,
1030 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1031 struct mwifiex_bss_prio_tbl
*tbl
= adapter
->bss_prio_tbl
;
1032 struct mwifiex_tid_tbl
*tid_ptr
= &priv
->wmm
.tid_tbl_ptr
[tid
];
1033 unsigned long flags
;
1035 spin_lock_irqsave(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
1037 * dirty trick: we remove 'head' temporarily and reinsert it after
1038 * curr bss node. imagine list to stay fixed while head is moved
1040 list_move(&tbl
[priv
->bss_priority
].bss_prio_head
,
1041 &tbl
[priv
->bss_priority
].bss_prio_cur
->list
);
1042 spin_unlock_irqrestore(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
1044 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, flags
);
1045 if (mwifiex_is_ralist_valid(priv
, ra
, tid
)) {
1046 priv
->wmm
.packets_out
[tid
]++;
1048 list_move(&tid_ptr
->ra_list
, &ra
->list
);
1050 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
1054 * This function checks if 11n aggregation is possible.
1057 mwifiex_is_11n_aggragation_possible(struct mwifiex_private
*priv
,
1058 struct mwifiex_ra_list_tbl
*ptr
,
1061 int count
= 0, total_size
= 0;
1062 struct sk_buff
*skb
, *tmp
;
1065 if (priv
->bss_role
== MWIFIEX_BSS_ROLE_UAP
&& priv
->ap_11n_enabled
&&
1066 ptr
->is_11n_enabled
)
1067 max_amsdu_size
= min_t(int, ptr
->max_amsdu
, max_buf_size
);
1069 max_amsdu_size
= max_buf_size
;
1071 skb_queue_walk_safe(&ptr
->skb_head
, skb
, tmp
) {
1072 total_size
+= skb
->len
;
1073 if (total_size
>= max_amsdu_size
)
1075 if (++count
>= MIN_NUM_AMSDU
)
1083 * This function sends a single packet to firmware for transmission.
1086 mwifiex_send_single_packet(struct mwifiex_private
*priv
,
1087 struct mwifiex_ra_list_tbl
*ptr
, int ptr_index
,
1088 unsigned long ra_list_flags
)
1089 __releases(&priv
->wmm
.ra_list_spinlock
)
1091 struct sk_buff
*skb
, *skb_next
;
1092 struct mwifiex_tx_param tx_param
;
1093 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1094 struct mwifiex_txinfo
*tx_info
;
1096 if (skb_queue_empty(&ptr
->skb_head
)) {
1097 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1099 mwifiex_dbg(adapter
, DATA
, "data: nothing to send\n");
1103 skb
= skb_dequeue(&ptr
->skb_head
);
1105 tx_info
= MWIFIEX_SKB_TXCB(skb
);
1106 mwifiex_dbg(adapter
, DATA
,
1107 "data: dequeuing the packet %p %p\n", ptr
, skb
);
1109 ptr
->total_pkt_count
--;
1111 if (!skb_queue_empty(&ptr
->skb_head
))
1112 skb_next
= skb_peek(&ptr
->skb_head
);
1116 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, ra_list_flags
);
1118 tx_param
.next_pkt_len
= ((skb_next
) ? skb_next
->len
+
1119 sizeof(struct txpd
) : 0);
1121 if (mwifiex_process_tx(priv
, skb
, &tx_param
) == -EBUSY
) {
1122 /* Queue the packet back at the head */
1123 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, ra_list_flags
);
1125 if (!mwifiex_is_ralist_valid(priv
, ptr
, ptr_index
)) {
1126 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1128 mwifiex_write_data_complete(adapter
, skb
, 0, -1);
1132 skb_queue_tail(&ptr
->skb_head
, skb
);
1134 ptr
->total_pkt_count
++;
1135 ptr
->ba_pkt_count
++;
1136 tx_info
->flags
|= MWIFIEX_BUF_FLAG_REQUEUED_PKT
;
1137 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1140 mwifiex_rotate_priolists(priv
, ptr
, ptr_index
);
1141 atomic_dec(&priv
->wmm
.tx_pkts_queued
);
1146 * This function checks if the first packet in the given RA list
1147 * is already processed or not.
1150 mwifiex_is_ptr_processed(struct mwifiex_private
*priv
,
1151 struct mwifiex_ra_list_tbl
*ptr
)
1153 struct sk_buff
*skb
;
1154 struct mwifiex_txinfo
*tx_info
;
1156 if (skb_queue_empty(&ptr
->skb_head
))
1159 skb
= skb_peek(&ptr
->skb_head
);
1161 tx_info
= MWIFIEX_SKB_TXCB(skb
);
1162 if (tx_info
->flags
& MWIFIEX_BUF_FLAG_REQUEUED_PKT
)
1169 * This function sends a single processed packet to firmware for
1173 mwifiex_send_processed_packet(struct mwifiex_private
*priv
,
1174 struct mwifiex_ra_list_tbl
*ptr
, int ptr_index
,
1175 unsigned long ra_list_flags
)
1176 __releases(&priv
->wmm
.ra_list_spinlock
)
1178 struct mwifiex_tx_param tx_param
;
1179 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1181 struct sk_buff
*skb
, *skb_next
;
1182 struct mwifiex_txinfo
*tx_info
;
1184 if (skb_queue_empty(&ptr
->skb_head
)) {
1185 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1190 skb
= skb_dequeue(&ptr
->skb_head
);
1192 if (adapter
->data_sent
|| adapter
->tx_lock_flag
) {
1193 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1195 skb_queue_tail(&adapter
->tx_data_q
, skb
);
1196 atomic_inc(&adapter
->tx_queued
);
1200 if (!skb_queue_empty(&ptr
->skb_head
))
1201 skb_next
= skb_peek(&ptr
->skb_head
);
1205 tx_info
= MWIFIEX_SKB_TXCB(skb
);
1207 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, ra_list_flags
);
1209 if (adapter
->iface_type
== MWIFIEX_USB
) {
1210 adapter
->data_sent
= true;
1211 ret
= adapter
->if_ops
.host_to_card(adapter
, MWIFIEX_USB_EP_DATA
,
1214 tx_param
.next_pkt_len
=
1215 ((skb_next
) ? skb_next
->len
+
1216 sizeof(struct txpd
) : 0);
1217 ret
= adapter
->if_ops
.host_to_card(adapter
, MWIFIEX_TYPE_DATA
,
1223 mwifiex_dbg(adapter
, ERROR
, "data: -EBUSY is returned\n");
1224 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, ra_list_flags
);
1226 if (!mwifiex_is_ralist_valid(priv
, ptr
, ptr_index
)) {
1227 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1229 mwifiex_write_data_complete(adapter
, skb
, 0, -1);
1233 skb_queue_tail(&ptr
->skb_head
, skb
);
1235 tx_info
->flags
|= MWIFIEX_BUF_FLAG_REQUEUED_PKT
;
1236 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
,
1240 if (adapter
->iface_type
!= MWIFIEX_PCIE
)
1241 adapter
->data_sent
= false;
1242 mwifiex_dbg(adapter
, ERROR
, "host_to_card failed: %#x\n", ret
);
1243 adapter
->dbg
.num_tx_host_to_card_failure
++;
1244 mwifiex_write_data_complete(adapter
, skb
, 0, ret
);
1247 if (adapter
->iface_type
!= MWIFIEX_PCIE
)
1248 adapter
->data_sent
= false;
1251 mwifiex_write_data_complete(adapter
, skb
, 0, ret
);
1255 if (ret
!= -EBUSY
) {
1256 mwifiex_rotate_priolists(priv
, ptr
, ptr_index
);
1257 atomic_dec(&priv
->wmm
.tx_pkts_queued
);
1262 * This function dequeues a packet from the highest priority list
1266 mwifiex_dequeue_tx_packet(struct mwifiex_adapter
*adapter
)
1268 struct mwifiex_ra_list_tbl
*ptr
;
1269 struct mwifiex_private
*priv
= NULL
;
1272 int tid_del
= 0, tid
= 0;
1273 unsigned long flags
;
1275 ptr
= mwifiex_wmm_get_highest_priolist_ptr(adapter
, &priv
, &ptr_index
);
1279 tid
= mwifiex_get_tid(ptr
);
1281 mwifiex_dbg(adapter
, DATA
, "data: tid=%d\n", tid
);
1283 spin_lock_irqsave(&priv
->wmm
.ra_list_spinlock
, flags
);
1284 if (!mwifiex_is_ralist_valid(priv
, ptr
, ptr_index
)) {
1285 spin_unlock_irqrestore(&priv
->wmm
.ra_list_spinlock
, flags
);
1289 if (mwifiex_is_ptr_processed(priv
, ptr
)) {
1290 mwifiex_send_processed_packet(priv
, ptr
, ptr_index
, flags
);
1291 /* ra_list_spinlock has been freed in
1292 mwifiex_send_processed_packet() */
1296 if (!ptr
->is_11n_enabled
||
1298 priv
->wps
.session_enable
) {
1299 if (ptr
->is_11n_enabled
&&
1301 ptr
->amsdu_in_ampdu
&&
1302 mwifiex_is_amsdu_allowed(priv
, tid
) &&
1303 mwifiex_is_11n_aggragation_possible(priv
, ptr
,
1304 adapter
->tx_buf_size
))
1305 mwifiex_11n_aggregate_pkt(priv
, ptr
, ptr_index
, flags
);
1306 /* ra_list_spinlock has been freed in
1307 * mwifiex_11n_aggregate_pkt()
1310 mwifiex_send_single_packet(priv
, ptr
, ptr_index
, flags
);
1311 /* ra_list_spinlock has been freed in
1312 * mwifiex_send_single_packet()
1315 if (mwifiex_is_ampdu_allowed(priv
, ptr
, tid
) &&
1316 ptr
->ba_pkt_count
> ptr
->ba_packet_thr
) {
1317 if (mwifiex_space_avail_for_new_ba_stream(adapter
)) {
1318 mwifiex_create_ba_tbl(priv
, ptr
->ra
, tid
,
1319 BA_SETUP_INPROGRESS
);
1320 mwifiex_send_addba(priv
, tid
, ptr
->ra
);
1321 } else if (mwifiex_find_stream_to_delete
1322 (priv
, tid
, &tid_del
, ra
)) {
1323 mwifiex_create_ba_tbl(priv
, ptr
->ra
, tid
,
1324 BA_SETUP_INPROGRESS
);
1325 mwifiex_send_delba(priv
, tid_del
, ra
, 1);
1328 if (mwifiex_is_amsdu_allowed(priv
, tid
) &&
1329 mwifiex_is_11n_aggragation_possible(priv
, ptr
,
1330 adapter
->tx_buf_size
))
1331 mwifiex_11n_aggregate_pkt(priv
, ptr
, ptr_index
, flags
);
1332 /* ra_list_spinlock has been freed in
1333 mwifiex_11n_aggregate_pkt() */
1335 mwifiex_send_single_packet(priv
, ptr
, ptr_index
, flags
);
1336 /* ra_list_spinlock has been freed in
1337 mwifiex_send_single_packet() */
1343 * This function transmits the highest priority packet awaiting in the
1347 mwifiex_wmm_process_tx(struct mwifiex_adapter
*adapter
)
1350 if (mwifiex_dequeue_tx_packet(adapter
))
1352 if (adapter
->iface_type
!= MWIFIEX_SDIO
) {
1353 if (adapter
->data_sent
||
1354 adapter
->tx_lock_flag
)
1357 if (atomic_read(&adapter
->tx_queued
) >=
1358 MWIFIEX_MAX_PKTS_TXQ
)
1361 } while (!mwifiex_wmm_lists_empty(adapter
));