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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: WMM | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
5 | * |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "decl.h" | |
21 | #include "ioctl.h" | |
22 | #include "util.h" | |
23 | #include "fw.h" | |
24 | #include "main.h" | |
25 | #include "wmm.h" | |
26 | #include "11n.h" | |
27 | ||
28 | ||
29 | /* Maximum value FW can accept for driver delay in packet transmission */ | |
30 | #define DRV_PKT_DELAY_TO_FW_MAX 512 | |
31 | ||
32 | ||
33 | #define WMM_QUEUED_PACKET_LOWER_LIMIT 180 | |
34 | ||
35 | #define WMM_QUEUED_PACKET_UPPER_LIMIT 200 | |
36 | ||
37 | /* Offset for TOS field in the IP header */ | |
38 | #define IPTOS_OFFSET 5 | |
39 | ||
4c9f9fb2 AK |
40 | static bool disable_tx_amsdu; |
41 | module_param(disable_tx_amsdu, bool, 0644); | |
c9e2404c | 42 | |
5e6e3a92 BZ |
43 | /* WMM information IE */ |
44 | static const u8 wmm_info_ie[] = { WLAN_EID_VENDOR_SPECIFIC, 0x07, | |
45 | 0x00, 0x50, 0xf2, 0x02, | |
46 | 0x00, 0x01, 0x00 | |
47 | }; | |
48 | ||
49 | static const u8 wmm_aci_to_qidx_map[] = { WMM_AC_BE, | |
50 | WMM_AC_BK, | |
51 | WMM_AC_VI, | |
52 | WMM_AC_VO | |
53 | }; | |
54 | ||
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 */ | |
65 | }; | |
66 | ||
5e6e3a92 BZ |
67 | static u8 ac_to_tid[4][2] = { {1, 2}, {0, 3}, {4, 5}, {6, 7} }; |
68 | ||
69 | /* | |
70 | * This function debug prints the priority parameters for a WMM AC. | |
71 | */ | |
72 | static void | |
73 | mwifiex_wmm_ac_debug_print(const struct ieee_types_wmm_ac_parameters *ac_param) | |
74 | { | |
75 | const char *ac_str[] = { "BK", "BE", "VI", "VO" }; | |
76 | ||
77 | pr_debug("info: WMM AC_%s: ACI=%d, ACM=%d, Aifsn=%d, " | |
c65a30f3 YAP |
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)); | |
5e6e3a92 BZ |
87 | } |
88 | ||
89 | /* | |
90 | * This function allocates a route address list. | |
91 | * | |
92 | * The function also initializes the list with the provided RA. | |
93 | */ | |
94 | static struct mwifiex_ra_list_tbl * | |
3b3a0162 | 95 | mwifiex_wmm_allocate_ralist_node(struct mwifiex_adapter *adapter, const u8 *ra) |
5e6e3a92 BZ |
96 | { |
97 | struct mwifiex_ra_list_tbl *ra_list; | |
98 | ||
99 | ra_list = kzalloc(sizeof(struct mwifiex_ra_list_tbl), GFP_ATOMIC); | |
0d2e7a5c | 100 | if (!ra_list) |
5e6e3a92 | 101 | return NULL; |
0d2e7a5c | 102 | |
5e6e3a92 BZ |
103 | INIT_LIST_HEAD(&ra_list->list); |
104 | skb_queue_head_init(&ra_list->skb_head); | |
105 | ||
106 | memcpy(ra_list->ra, ra, ETH_ALEN); | |
107 | ||
c7d9ed9e | 108 | ra_list->total_pkt_count = 0; |
5e6e3a92 | 109 | |
acebe8c1 | 110 | mwifiex_dbg(adapter, INFO, "info: allocated ra_list %p\n", ra_list); |
5e6e3a92 BZ |
111 | |
112 | return ra_list; | |
113 | } | |
114 | ||
5a009adf AP |
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. | |
117 | */ | |
118 | static u8 mwifiex_get_random_ba_threshold(void) | |
119 | { | |
120 | u32 sec, usec; | |
121 | struct timeval ba_tstamp; | |
122 | u8 ba_threshold; | |
123 | ||
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] | |
127 | */ | |
128 | ||
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; | |
134 | ||
135 | return ba_threshold; | |
136 | } | |
137 | ||
5e6e3a92 BZ |
138 | /* |
139 | * This function allocates and adds a RA list for all TIDs | |
140 | * with the given RA. | |
141 | */ | |
3b3a0162 | 142 | void mwifiex_ralist_add(struct mwifiex_private *priv, const u8 *ra) |
5e6e3a92 BZ |
143 | { |
144 | int i; | |
145 | struct mwifiex_ra_list_tbl *ra_list; | |
146 | struct mwifiex_adapter *adapter = priv->adapter; | |
5a009adf AP |
147 | struct mwifiex_sta_node *node; |
148 | unsigned long flags; | |
149 | ||
5e6e3a92 BZ |
150 | |
151 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
152 | ra_list = mwifiex_wmm_allocate_ralist_node(adapter, ra); | |
acebe8c1 ZL |
153 | mwifiex_dbg(adapter, INFO, |
154 | "info: created ra_list %p\n", ra_list); | |
5e6e3a92 BZ |
155 | |
156 | if (!ra_list) | |
157 | break; | |
158 | ||
5a009adf | 159 | ra_list->is_11n_enabled = 0; |
daeb5bb4 | 160 | ra_list->tdls_link = false; |
39df5e82 ZL |
161 | ra_list->ba_status = BA_SETUP_NONE; |
162 | ra_list->amsdu_in_ampdu = false; | |
4e6ee91b | 163 | ra_list->tx_paused = false; |
5a009adf | 164 | if (!mwifiex_queuing_ra_based(priv)) { |
55a2c077 XH |
165 | if (mwifiex_is_tdls_link_setup |
166 | (mwifiex_get_tdls_link_status(priv, ra))) { | |
a983e48b | 167 | ra_list->tdls_link = true; |
daeb5bb4 AP |
168 | ra_list->is_11n_enabled = |
169 | mwifiex_tdls_peer_11n_enabled(priv, ra); | |
170 | } else { | |
171 | ra_list->is_11n_enabled = IS_11N_ENABLED(priv); | |
172 | } | |
5a009adf | 173 | } else { |
c11fb985 AP |
174 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); |
175 | node = mwifiex_get_sta_entry(priv, ra); | |
5a009adf AP |
176 | ra_list->is_11n_enabled = |
177 | mwifiex_is_sta_11n_enabled(priv, node); | |
178 | if (ra_list->is_11n_enabled) | |
179 | ra_list->max_amsdu = node->max_amsdu; | |
c11fb985 | 180 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); |
5a009adf | 181 | } |
5e6e3a92 | 182 | |
acebe8c1 ZL |
183 | mwifiex_dbg(adapter, DATA, "data: ralist %p: is_11n_enabled=%d\n", |
184 | ra_list, ra_list->is_11n_enabled); | |
5e6e3a92 | 185 | |
5a009adf | 186 | if (ra_list->is_11n_enabled) { |
f0cb84f8 | 187 | ra_list->ba_pkt_count = 0; |
5a009adf AP |
188 | ra_list->ba_packet_thr = |
189 | mwifiex_get_random_ba_threshold(); | |
190 | } | |
5e6e3a92 | 191 | list_add_tail(&ra_list->list, |
c65a30f3 | 192 | &priv->wmm.tid_tbl_ptr[i].ra_list); |
5e6e3a92 BZ |
193 | } |
194 | } | |
195 | ||
196 | /* | |
197 | * This function sets the WMM queue priorities to their default values. | |
198 | */ | |
199 | static void mwifiex_wmm_default_queue_priorities(struct mwifiex_private *priv) | |
200 | { | |
201 | /* Default queue priorities: VO->VI->BE->BK */ | |
202 | priv->wmm.queue_priority[0] = WMM_AC_VO; | |
203 | priv->wmm.queue_priority[1] = WMM_AC_VI; | |
204 | priv->wmm.queue_priority[2] = WMM_AC_BE; | |
205 | priv->wmm.queue_priority[3] = WMM_AC_BK; | |
206 | } | |
207 | ||
208 | /* | |
209 | * This function map ACs to TIDs. | |
210 | */ | |
211 | static void | |
41a24a29 | 212 | mwifiex_wmm_queue_priorities_tid(struct mwifiex_private *priv) |
5e6e3a92 | 213 | { |
41a24a29 | 214 | struct mwifiex_wmm_desc *wmm = &priv->wmm; |
49729ff6 | 215 | u8 *queue_priority = wmm->queue_priority; |
5e6e3a92 BZ |
216 | int i; |
217 | ||
218 | for (i = 0; i < 4; ++i) { | |
219 | tos_to_tid[7 - (i * 2)] = ac_to_tid[queue_priority[i]][1]; | |
220 | tos_to_tid[6 - (i * 2)] = ac_to_tid[queue_priority[i]][0]; | |
221 | } | |
49729ff6 MY |
222 | |
223 | for (i = 0; i < MAX_NUM_TID; ++i) | |
41a24a29 | 224 | priv->tos_to_tid_inv[tos_to_tid[i]] = (u8)i; |
49729ff6 MY |
225 | |
226 | atomic_set(&wmm->highest_queued_prio, HIGH_PRIO_TID); | |
5e6e3a92 BZ |
227 | } |
228 | ||
229 | /* | |
230 | * This function initializes WMM priority queues. | |
231 | */ | |
232 | void | |
233 | mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv, | |
234 | struct ieee_types_wmm_parameter *wmm_ie) | |
235 | { | |
236 | u16 cw_min, avg_back_off, tmp[4]; | |
237 | u32 i, j, num_ac; | |
238 | u8 ac_idx; | |
239 | ||
240 | if (!wmm_ie || !priv->wmm_enabled) { | |
241 | /* WMM is not enabled, just set the defaults and return */ | |
242 | mwifiex_wmm_default_queue_priorities(priv); | |
243 | return; | |
244 | } | |
245 | ||
acebe8c1 ZL |
246 | mwifiex_dbg(priv->adapter, INFO, |
247 | "info: WMM Parameter IE: version=%d,\t" | |
248 | "qos_info Parameter Set Count=%d, Reserved=%#x\n", | |
249 | wmm_ie->vend_hdr.version, wmm_ie->qos_info_bitmap & | |
250 | IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK, | |
251 | wmm_ie->reserved); | |
5e6e3a92 BZ |
252 | |
253 | for (num_ac = 0; num_ac < ARRAY_SIZE(wmm_ie->ac_params); num_ac++) { | |
c65a30f3 YAP |
254 | u8 ecw = wmm_ie->ac_params[num_ac].ecw_bitmap; |
255 | u8 aci_aifsn = wmm_ie->ac_params[num_ac].aci_aifsn_bitmap; | |
256 | cw_min = (1 << (ecw & MWIFIEX_ECW_MIN)) - 1; | |
257 | avg_back_off = (cw_min >> 1) + (aci_aifsn & MWIFIEX_AIFSN); | |
258 | ||
259 | ac_idx = wmm_aci_to_qidx_map[(aci_aifsn & MWIFIEX_ACI) >> 5]; | |
5e6e3a92 BZ |
260 | priv->wmm.queue_priority[ac_idx] = ac_idx; |
261 | tmp[ac_idx] = avg_back_off; | |
262 | ||
acebe8c1 ZL |
263 | mwifiex_dbg(priv->adapter, INFO, |
264 | "info: WMM: CWmax=%d CWmin=%d Avg Back-off=%d\n", | |
265 | (1 << ((ecw & MWIFIEX_ECW_MAX) >> 4)) - 1, | |
266 | cw_min, avg_back_off); | |
5e6e3a92 BZ |
267 | mwifiex_wmm_ac_debug_print(&wmm_ie->ac_params[num_ac]); |
268 | } | |
269 | ||
270 | /* Bubble sort */ | |
271 | for (i = 0; i < num_ac; i++) { | |
272 | for (j = 1; j < num_ac - i; j++) { | |
273 | if (tmp[j - 1] > tmp[j]) { | |
274 | swap(tmp[j - 1], tmp[j]); | |
275 | swap(priv->wmm.queue_priority[j - 1], | |
276 | priv->wmm.queue_priority[j]); | |
277 | } else if (tmp[j - 1] == tmp[j]) { | |
278 | if (priv->wmm.queue_priority[j - 1] | |
279 | < priv->wmm.queue_priority[j]) | |
280 | swap(priv->wmm.queue_priority[j - 1], | |
281 | priv->wmm.queue_priority[j]); | |
282 | } | |
283 | } | |
284 | } | |
285 | ||
41a24a29 | 286 | mwifiex_wmm_queue_priorities_tid(priv); |
5e6e3a92 BZ |
287 | } |
288 | ||
289 | /* | |
290 | * This function evaluates whether or not an AC is to be downgraded. | |
291 | * | |
292 | * In case the AC is not enabled, the highest AC is returned that is | |
293 | * enabled and does not require admission control. | |
294 | */ | |
295 | static enum mwifiex_wmm_ac_e | |
296 | mwifiex_wmm_eval_downgrade_ac(struct mwifiex_private *priv, | |
297 | enum mwifiex_wmm_ac_e eval_ac) | |
298 | { | |
299 | int down_ac; | |
300 | enum mwifiex_wmm_ac_e ret_ac; | |
301 | struct mwifiex_wmm_ac_status *ac_status; | |
302 | ||
303 | ac_status = &priv->wmm.ac_status[eval_ac]; | |
304 | ||
305 | if (!ac_status->disabled) | |
306 | /* Okay to use this AC, its enabled */ | |
307 | return eval_ac; | |
308 | ||
309 | /* Setup a default return value of the lowest priority */ | |
310 | ret_ac = WMM_AC_BK; | |
311 | ||
312 | /* | |
313 | * Find the highest AC that is enabled and does not require | |
314 | * admission control. The spec disallows downgrading to an AC, | |
315 | * which is enabled due to a completed admission control. | |
316 | * Unadmitted traffic is not to be sent on an AC with admitted | |
317 | * traffic. | |
318 | */ | |
319 | for (down_ac = WMM_AC_BK; down_ac < eval_ac; down_ac++) { | |
320 | ac_status = &priv->wmm.ac_status[down_ac]; | |
321 | ||
322 | if (!ac_status->disabled && !ac_status->flow_required) | |
323 | /* AC is enabled and does not require admission | |
324 | control */ | |
325 | ret_ac = (enum mwifiex_wmm_ac_e) down_ac; | |
326 | } | |
327 | ||
328 | return ret_ac; | |
329 | } | |
330 | ||
331 | /* | |
332 | * This function downgrades WMM priority queue. | |
333 | */ | |
334 | void | |
335 | mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv) | |
336 | { | |
337 | int ac_val; | |
338 | ||
acebe8c1 ZL |
339 | mwifiex_dbg(priv->adapter, INFO, "info: WMM: AC Priorities:\t" |
340 | "BK(0), BE(1), VI(2), VO(3)\n"); | |
5e6e3a92 BZ |
341 | |
342 | if (!priv->wmm_enabled) { | |
343 | /* WMM is not enabled, default priorities */ | |
344 | for (ac_val = WMM_AC_BK; ac_val <= WMM_AC_VO; ac_val++) | |
345 | priv->wmm.ac_down_graded_vals[ac_val] = | |
c65a30f3 | 346 | (enum mwifiex_wmm_ac_e) ac_val; |
5e6e3a92 BZ |
347 | } else { |
348 | for (ac_val = WMM_AC_BK; ac_val <= WMM_AC_VO; ac_val++) { | |
349 | priv->wmm.ac_down_graded_vals[ac_val] | |
350 | = mwifiex_wmm_eval_downgrade_ac(priv, | |
351 | (enum mwifiex_wmm_ac_e) ac_val); | |
acebe8c1 ZL |
352 | mwifiex_dbg(priv->adapter, INFO, |
353 | "info: WMM: AC PRIO %d maps to %d\n", | |
354 | ac_val, | |
355 | priv->wmm.ac_down_graded_vals[ac_val]); | |
5e6e3a92 BZ |
356 | } |
357 | } | |
358 | } | |
359 | ||
360 | /* | |
361 | * This function converts the IP TOS field to an WMM AC | |
362 | * Queue assignment. | |
363 | */ | |
364 | static enum mwifiex_wmm_ac_e | |
365 | mwifiex_wmm_convert_tos_to_ac(struct mwifiex_adapter *adapter, u32 tos) | |
366 | { | |
367 | /* Map of TOS UP values to WMM AC */ | |
368 | const enum mwifiex_wmm_ac_e tos_to_ac[] = { WMM_AC_BE, | |
369 | WMM_AC_BK, | |
370 | WMM_AC_BK, | |
371 | WMM_AC_BE, | |
372 | WMM_AC_VI, | |
373 | WMM_AC_VI, | |
374 | WMM_AC_VO, | |
375 | WMM_AC_VO | |
376 | }; | |
377 | ||
378 | if (tos >= ARRAY_SIZE(tos_to_ac)) | |
379 | return WMM_AC_BE; | |
380 | ||
381 | return tos_to_ac[tos]; | |
382 | } | |
383 | ||
384 | /* | |
385 | * This function evaluates a given TID and downgrades it to a lower | |
386 | * TID if the WMM Parameter IE received from the AP indicates that the | |
387 | * AP is disabled (due to call admission control (ACM bit). Mapping | |
388 | * of TID to AC is taken care of internally. | |
389 | */ | |
5f2caaf3 | 390 | u8 mwifiex_wmm_downgrade_tid(struct mwifiex_private *priv, u32 tid) |
5e6e3a92 BZ |
391 | { |
392 | enum mwifiex_wmm_ac_e ac, ac_down; | |
393 | u8 new_tid; | |
394 | ||
395 | ac = mwifiex_wmm_convert_tos_to_ac(priv->adapter, tid); | |
396 | ac_down = priv->wmm.ac_down_graded_vals[ac]; | |
397 | ||
398 | /* Send the index to tid array, picking from the array will be | |
399 | * taken care by dequeuing function | |
400 | */ | |
401 | new_tid = ac_to_tid[ac_down][tid % 2]; | |
402 | ||
403 | return new_tid; | |
404 | } | |
405 | ||
406 | /* | |
407 | * This function initializes the WMM state information and the | |
408 | * WMM data path queues. | |
409 | */ | |
410 | void | |
411 | mwifiex_wmm_init(struct mwifiex_adapter *adapter) | |
412 | { | |
413 | int i, j; | |
414 | struct mwifiex_private *priv; | |
415 | ||
416 | for (j = 0; j < adapter->priv_num; ++j) { | |
417 | priv = adapter->priv[j]; | |
418 | if (!priv) | |
419 | continue; | |
420 | ||
421 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
4c9f9fb2 AK |
422 | if (!disable_tx_amsdu && |
423 | adapter->tx_buf_size > MWIFIEX_TX_DATA_BUF_SIZE_2K) | |
424 | priv->aggr_prio_tbl[i].amsdu = | |
425 | priv->tos_to_tid_inv[i]; | |
426 | else | |
427 | priv->aggr_prio_tbl[i].amsdu = | |
428 | BA_STREAM_NOT_ALLOWED; | |
41a24a29 AP |
429 | priv->aggr_prio_tbl[i].ampdu_ap = |
430 | priv->tos_to_tid_inv[i]; | |
431 | priv->aggr_prio_tbl[i].ampdu_user = | |
432 | priv->tos_to_tid_inv[i]; | |
5e6e3a92 BZ |
433 | } |
434 | ||
31a09a5d AP |
435 | priv->aggr_prio_tbl[6].amsdu |
436 | = priv->aggr_prio_tbl[6].ampdu_ap | |
437 | = priv->aggr_prio_tbl[6].ampdu_user | |
438 | = BA_STREAM_NOT_ALLOWED; | |
439 | ||
440 | priv->aggr_prio_tbl[7].amsdu = priv->aggr_prio_tbl[7].ampdu_ap | |
441 | = priv->aggr_prio_tbl[7].ampdu_user | |
442 | = BA_STREAM_NOT_ALLOWED; | |
443 | ||
04abc0a3 | 444 | mwifiex_set_ba_params(priv); |
92583924 SP |
445 | mwifiex_reset_11n_rx_seq_num(priv); |
446 | ||
f699254c | 447 | atomic_set(&priv->wmm.tx_pkts_queued, 0); |
49729ff6 | 448 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); |
5e6e3a92 BZ |
449 | } |
450 | } | |
451 | ||
a1777327 AP |
452 | int mwifiex_bypass_txlist_empty(struct mwifiex_adapter *adapter) |
453 | { | |
454 | return atomic_read(&adapter->bypass_tx_pending) ? false : true; | |
455 | } | |
456 | ||
5e6e3a92 BZ |
457 | /* |
458 | * This function checks if WMM Tx queue is empty. | |
459 | */ | |
460 | int | |
461 | mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter) | |
462 | { | |
f699254c | 463 | int i; |
5e6e3a92 BZ |
464 | struct mwifiex_private *priv; |
465 | ||
f699254c MY |
466 | for (i = 0; i < adapter->priv_num; ++i) { |
467 | priv = adapter->priv[i]; | |
5c894633 AP |
468 | if (priv && !priv->port_open) |
469 | continue; | |
f699254c | 470 | if (priv && atomic_read(&priv->wmm.tx_pkts_queued)) |
a8aa69dc | 471 | return false; |
5e6e3a92 BZ |
472 | } |
473 | ||
474 | return true; | |
475 | } | |
476 | ||
477 | /* | |
478 | * This function deletes all packets in an RA list node. | |
479 | * | |
480 | * The packet sent completion callback handler are called with | |
481 | * status failure, after they are dequeued to ensure proper | |
482 | * cleanup. The RA list node itself is freed at the end. | |
483 | */ | |
484 | static void | |
485 | mwifiex_wmm_del_pkts_in_ralist_node(struct mwifiex_private *priv, | |
486 | struct mwifiex_ra_list_tbl *ra_list) | |
487 | { | |
488 | struct mwifiex_adapter *adapter = priv->adapter; | |
489 | struct sk_buff *skb, *tmp; | |
490 | ||
491 | skb_queue_walk_safe(&ra_list->skb_head, skb, tmp) | |
47411a06 | 492 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
493 | } |
494 | ||
495 | /* | |
496 | * This function deletes all packets in an RA list. | |
497 | * | |
498 | * Each nodes in the RA list are freed individually first, and then | |
499 | * the RA list itself is freed. | |
500 | */ | |
501 | static void | |
502 | mwifiex_wmm_del_pkts_in_ralist(struct mwifiex_private *priv, | |
503 | struct list_head *ra_list_head) | |
504 | { | |
505 | struct mwifiex_ra_list_tbl *ra_list; | |
506 | ||
507 | list_for_each_entry(ra_list, ra_list_head, list) | |
508 | mwifiex_wmm_del_pkts_in_ralist_node(priv, ra_list); | |
509 | } | |
510 | ||
511 | /* | |
512 | * This function deletes all packets in all RA lists. | |
513 | */ | |
514 | static void mwifiex_wmm_cleanup_queues(struct mwifiex_private *priv) | |
515 | { | |
516 | int i; | |
517 | ||
518 | for (i = 0; i < MAX_NUM_TID; i++) | |
519 | mwifiex_wmm_del_pkts_in_ralist(priv, &priv->wmm.tid_tbl_ptr[i]. | |
c65a30f3 | 520 | ra_list); |
f699254c MY |
521 | |
522 | atomic_set(&priv->wmm.tx_pkts_queued, 0); | |
49729ff6 | 523 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); |
5e6e3a92 BZ |
524 | } |
525 | ||
526 | /* | |
527 | * This function deletes all route addresses from all RA lists. | |
528 | */ | |
529 | static void mwifiex_wmm_delete_all_ralist(struct mwifiex_private *priv) | |
530 | { | |
531 | struct mwifiex_ra_list_tbl *ra_list, *tmp_node; | |
532 | int i; | |
533 | ||
534 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
acebe8c1 ZL |
535 | mwifiex_dbg(priv->adapter, INFO, |
536 | "info: ra_list: freeing buf for tid %d\n", i); | |
5e6e3a92 | 537 | list_for_each_entry_safe(ra_list, tmp_node, |
c65a30f3 YAP |
538 | &priv->wmm.tid_tbl_ptr[i].ra_list, |
539 | list) { | |
5e6e3a92 BZ |
540 | list_del(&ra_list->list); |
541 | kfree(ra_list); | |
542 | } | |
543 | ||
544 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[i].ra_list); | |
5e6e3a92 BZ |
545 | } |
546 | } | |
547 | ||
808bbebc AK |
548 | static int mwifiex_free_ack_frame(int id, void *p, void *data) |
549 | { | |
550 | pr_warn("Have pending ack frames!\n"); | |
551 | kfree_skb(p); | |
552 | return 0; | |
553 | } | |
554 | ||
5e6e3a92 BZ |
555 | /* |
556 | * This function cleans up the Tx and Rx queues. | |
557 | * | |
558 | * Cleanup includes - | |
559 | * - All packets in RA lists | |
560 | * - All entries in Rx reorder table | |
561 | * - All entries in Tx BA stream table | |
562 | * - MPA buffer (if required) | |
563 | * - All RA lists | |
564 | */ | |
565 | void | |
566 | mwifiex_clean_txrx(struct mwifiex_private *priv) | |
567 | { | |
568 | unsigned long flags; | |
56bd24a1 | 569 | struct sk_buff *skb, *tmp; |
5e6e3a92 BZ |
570 | |
571 | mwifiex_11n_cleanup_reorder_tbl(priv); | |
572 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
573 | ||
574 | mwifiex_wmm_cleanup_queues(priv); | |
575 | mwifiex_11n_delete_all_tx_ba_stream_tbl(priv); | |
576 | ||
577 | if (priv->adapter->if_ops.cleanup_mpa_buf) | |
578 | priv->adapter->if_ops.cleanup_mpa_buf(priv->adapter); | |
579 | ||
580 | mwifiex_wmm_delete_all_ralist(priv); | |
581 | memcpy(tos_to_tid, ac_to_tid, sizeof(tos_to_tid)); | |
582 | ||
4f7ba432 AP |
583 | if (priv->adapter->if_ops.clean_pcie_ring && |
584 | !priv->adapter->surprise_removed) | |
fbd7e7ac | 585 | priv->adapter->if_ops.clean_pcie_ring(priv->adapter); |
5e6e3a92 | 586 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); |
56bd24a1 AP |
587 | |
588 | skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) | |
589 | mwifiex_write_data_complete(priv->adapter, skb, 0, -1); | |
808bbebc | 590 | |
a1777327 AP |
591 | skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) |
592 | mwifiex_write_data_complete(priv->adapter, skb, 0, -1); | |
593 | atomic_set(&priv->adapter->bypass_tx_pending, 0); | |
594 | ||
808bbebc AK |
595 | idr_for_each(&priv->ack_status_frames, mwifiex_free_ack_frame, NULL); |
596 | idr_destroy(&priv->ack_status_frames); | |
5e6e3a92 BZ |
597 | } |
598 | ||
599 | /* | |
600 | * This function retrieves a particular RA list node, matching with the | |
601 | * given TID and RA address. | |
602 | */ | |
39df5e82 | 603 | struct mwifiex_ra_list_tbl * |
5e6e3a92 | 604 | mwifiex_wmm_get_ralist_node(struct mwifiex_private *priv, u8 tid, |
3b3a0162 | 605 | const u8 *ra_addr) |
5e6e3a92 BZ |
606 | { |
607 | struct mwifiex_ra_list_tbl *ra_list; | |
608 | ||
609 | list_for_each_entry(ra_list, &priv->wmm.tid_tbl_ptr[tid].ra_list, | |
610 | list) { | |
611 | if (!memcmp(ra_list->ra, ra_addr, ETH_ALEN)) | |
612 | return ra_list; | |
613 | } | |
614 | ||
615 | return NULL; | |
616 | } | |
617 | ||
4e6ee91b AP |
618 | void mwifiex_update_ralist_tx_pause(struct mwifiex_private *priv, u8 *mac, |
619 | u8 tx_pause) | |
620 | { | |
621 | struct mwifiex_ra_list_tbl *ra_list; | |
622 | u32 pkt_cnt = 0, tx_pkts_queued; | |
623 | unsigned long flags; | |
624 | int i; | |
625 | ||
626 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
627 | ||
628 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
629 | ra_list = mwifiex_wmm_get_ralist_node(priv, i, mac); | |
630 | if (ra_list && ra_list->tx_paused != tx_pause) { | |
631 | pkt_cnt += ra_list->total_pkt_count; | |
632 | ra_list->tx_paused = tx_pause; | |
633 | if (tx_pause) | |
634 | priv->wmm.pkts_paused[i] += | |
635 | ra_list->total_pkt_count; | |
636 | else | |
637 | priv->wmm.pkts_paused[i] -= | |
638 | ra_list->total_pkt_count; | |
639 | } | |
640 | } | |
641 | ||
f7669877 XH |
642 | if (pkt_cnt) { |
643 | tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); | |
644 | if (tx_pause) | |
645 | tx_pkts_queued -= pkt_cnt; | |
646 | else | |
647 | tx_pkts_queued += pkt_cnt; | |
648 | ||
649 | atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); | |
650 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); | |
651 | } | |
652 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
653 | } | |
654 | ||
655 | /* This function update non-tdls peer ralist tx_pause while | |
656 | * tdls channel swithing | |
657 | */ | |
658 | void mwifiex_update_ralist_tx_pause_in_tdls_cs(struct mwifiex_private *priv, | |
659 | u8 *mac, u8 tx_pause) | |
660 | { | |
661 | struct mwifiex_ra_list_tbl *ra_list; | |
662 | u32 pkt_cnt = 0, tx_pkts_queued; | |
663 | unsigned long flags; | |
664 | int i; | |
665 | ||
666 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
667 | ||
668 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
669 | list_for_each_entry(ra_list, &priv->wmm.tid_tbl_ptr[i].ra_list, | |
670 | list) { | |
671 | if (!memcmp(ra_list->ra, mac, ETH_ALEN)) | |
672 | continue; | |
673 | ||
674 | if (ra_list && ra_list->tx_paused != tx_pause) { | |
675 | pkt_cnt += ra_list->total_pkt_count; | |
676 | ra_list->tx_paused = tx_pause; | |
677 | if (tx_pause) | |
678 | priv->wmm.pkts_paused[i] += | |
679 | ra_list->total_pkt_count; | |
680 | else | |
681 | priv->wmm.pkts_paused[i] -= | |
682 | ra_list->total_pkt_count; | |
683 | } | |
684 | } | |
685 | } | |
686 | ||
4e6ee91b AP |
687 | if (pkt_cnt) { |
688 | tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); | |
689 | if (tx_pause) | |
690 | tx_pkts_queued -= pkt_cnt; | |
691 | else | |
692 | tx_pkts_queued += pkt_cnt; | |
693 | ||
694 | atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); | |
695 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); | |
696 | } | |
697 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
698 | } | |
699 | ||
5e6e3a92 BZ |
700 | /* |
701 | * This function retrieves an RA list node for a given TID and | |
702 | * RA address pair. | |
703 | * | |
704 | * If no such node is found, a new node is added first and then | |
705 | * retrieved. | |
706 | */ | |
5f2caaf3 | 707 | struct mwifiex_ra_list_tbl * |
3b3a0162 JB |
708 | mwifiex_wmm_get_queue_raptr(struct mwifiex_private *priv, u8 tid, |
709 | const u8 *ra_addr) | |
5e6e3a92 BZ |
710 | { |
711 | struct mwifiex_ra_list_tbl *ra_list; | |
712 | ||
713 | ra_list = mwifiex_wmm_get_ralist_node(priv, tid, ra_addr); | |
714 | if (ra_list) | |
715 | return ra_list; | |
716 | mwifiex_ralist_add(priv, ra_addr); | |
717 | ||
718 | return mwifiex_wmm_get_ralist_node(priv, tid, ra_addr); | |
719 | } | |
720 | ||
9817fffb AP |
721 | /* |
722 | * This function deletes RA list nodes for given mac for all TIDs. | |
723 | * Function also decrements TX pending count accordingly. | |
724 | */ | |
725 | void | |
726 | mwifiex_wmm_del_peer_ra_list(struct mwifiex_private *priv, const u8 *ra_addr) | |
727 | { | |
728 | struct mwifiex_ra_list_tbl *ra_list; | |
729 | unsigned long flags; | |
730 | int i; | |
731 | ||
732 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
733 | ||
734 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
735 | ra_list = mwifiex_wmm_get_ralist_node(priv, i, ra_addr); | |
736 | ||
737 | if (!ra_list) | |
738 | continue; | |
739 | mwifiex_wmm_del_pkts_in_ralist_node(priv, ra_list); | |
740 | atomic_sub(ra_list->total_pkt_count, &priv->wmm.tx_pkts_queued); | |
741 | list_del(&ra_list->list); | |
742 | kfree(ra_list); | |
743 | } | |
744 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
745 | } | |
746 | ||
5e6e3a92 BZ |
747 | /* |
748 | * This function checks if a particular RA list node exists in a given TID | |
749 | * table index. | |
750 | */ | |
751 | int | |
752 | mwifiex_is_ralist_valid(struct mwifiex_private *priv, | |
753 | struct mwifiex_ra_list_tbl *ra_list, int ptr_index) | |
754 | { | |
755 | struct mwifiex_ra_list_tbl *rlist; | |
756 | ||
757 | list_for_each_entry(rlist, &priv->wmm.tid_tbl_ptr[ptr_index].ra_list, | |
758 | list) { | |
759 | if (rlist == ra_list) | |
760 | return true; | |
761 | } | |
762 | ||
763 | return false; | |
764 | } | |
765 | ||
a1777327 AP |
766 | /* |
767 | * This function adds a packet to bypass TX queue. | |
768 | * This is special TX queue for packets which can be sent even when port_open | |
769 | * is false. | |
770 | */ | |
771 | void | |
772 | mwifiex_wmm_add_buf_bypass_txqueue(struct mwifiex_private *priv, | |
773 | struct sk_buff *skb) | |
774 | { | |
775 | skb_queue_tail(&priv->bypass_txq, skb); | |
776 | } | |
777 | ||
5e6e3a92 BZ |
778 | /* |
779 | * This function adds a packet to WMM queue. | |
780 | * | |
781 | * In disconnected state the packet is immediately dropped and the | |
782 | * packet send completion callback is called with status failure. | |
783 | * | |
784 | * Otherwise, the correct RA list node is located and the packet | |
785 | * is queued at the list tail. | |
786 | */ | |
787 | void | |
2690e1bb | 788 | mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, |
5e6e3a92 BZ |
789 | struct sk_buff *skb) |
790 | { | |
2690e1bb | 791 | struct mwifiex_adapter *adapter = priv->adapter; |
5e6e3a92 BZ |
792 | u32 tid; |
793 | struct mwifiex_ra_list_tbl *ra_list; | |
794 | u8 ra[ETH_ALEN], tid_down; | |
795 | unsigned long flags; | |
d63bf5e5 AP |
796 | struct list_head list_head; |
797 | int tdls_status = TDLS_NOT_SETUP; | |
798 | struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; | |
799 | struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb); | |
800 | ||
801 | memcpy(ra, eth_hdr->h_dest, ETH_ALEN); | |
802 | ||
803 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA && | |
804 | ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) { | |
805 | if (ntohs(eth_hdr->h_proto) == ETH_P_TDLS) | |
acebe8c1 ZL |
806 | mwifiex_dbg(adapter, DATA, |
807 | "TDLS setup packet for %pM.\t" | |
808 | "Don't block\n", ra); | |
16e8552a | 809 | else if (memcmp(priv->cfg_bssid, ra, ETH_ALEN)) |
d63bf5e5 AP |
810 | tdls_status = mwifiex_get_tdls_link_status(priv, ra); |
811 | } | |
5e6e3a92 | 812 | |
e39faa73 | 813 | if (!priv->media_connected && !mwifiex_is_skb_mgmt_frame(skb)) { |
acebe8c1 | 814 | mwifiex_dbg(adapter, DATA, "data: drop packet in disconnect\n"); |
47411a06 | 815 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
816 | return; |
817 | } | |
818 | ||
819 | tid = skb->priority; | |
820 | ||
821 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
822 | ||
823 | tid_down = mwifiex_wmm_downgrade_tid(priv, tid); | |
824 | ||
825 | /* In case of infra as we have already created the list during | |
826 | association we just don't have to call get_queue_raptr, we will | |
827 | have only 1 raptr for a tid in case of infra */ | |
e39faa73 SP |
828 | if (!mwifiex_queuing_ra_based(priv) && |
829 | !mwifiex_is_skb_mgmt_frame(skb)) { | |
d63bf5e5 AP |
830 | switch (tdls_status) { |
831 | case TDLS_SETUP_COMPLETE: | |
55a2c077 XH |
832 | case TDLS_CHAN_SWITCHING: |
833 | case TDLS_IN_BASE_CHAN: | |
834 | case TDLS_IN_OFF_CHAN: | |
d63bf5e5 AP |
835 | ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, |
836 | ra); | |
837 | tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT; | |
838 | break; | |
839 | case TDLS_SETUP_INPROGRESS: | |
840 | skb_queue_tail(&priv->tdls_txq, skb); | |
841 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
842 | flags); | |
843 | return; | |
844 | default: | |
845 | list_head = priv->wmm.tid_tbl_ptr[tid_down].ra_list; | |
846 | if (!list_empty(&list_head)) | |
847 | ra_list = list_first_entry( | |
848 | &list_head, struct mwifiex_ra_list_tbl, | |
849 | list); | |
850 | else | |
851 | ra_list = NULL; | |
852 | break; | |
853 | } | |
5e6e3a92 BZ |
854 | } else { |
855 | memcpy(ra, skb->data, ETH_ALEN); | |
e39faa73 | 856 | if (ra[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb)) |
93803b33 | 857 | eth_broadcast_addr(ra); |
5e6e3a92 BZ |
858 | ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra); |
859 | } | |
860 | ||
861 | if (!ra_list) { | |
862 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
47411a06 | 863 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
864 | return; |
865 | } | |
866 | ||
867 | skb_queue_tail(&ra_list->skb_head, skb); | |
868 | ||
f0cb84f8 | 869 | ra_list->ba_pkt_count++; |
c7d9ed9e | 870 | ra_list->total_pkt_count++; |
5e6e3a92 | 871 | |
49729ff6 | 872 | if (atomic_read(&priv->wmm.highest_queued_prio) < |
41a24a29 | 873 | priv->tos_to_tid_inv[tid_down]) |
49729ff6 | 874 | atomic_set(&priv->wmm.highest_queued_prio, |
41a24a29 | 875 | priv->tos_to_tid_inv[tid_down]); |
49729ff6 | 876 | |
9186a1f3 XH |
877 | if (ra_list->tx_paused) |
878 | priv->wmm.pkts_paused[tid_down]++; | |
879 | else | |
880 | atomic_inc(&priv->wmm.tx_pkts_queued); | |
2716fd7d | 881 | |
5e6e3a92 BZ |
882 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); |
883 | } | |
884 | ||
885 | /* | |
886 | * This function processes the get WMM status command response from firmware. | |
887 | * | |
888 | * The response may contain multiple TLVs - | |
889 | * - AC Queue status TLVs | |
890 | * - Current WMM Parameter IE TLV | |
891 | * - Admission Control action frame TLVs | |
892 | * | |
893 | * This function parses the TLVs and then calls further specific functions | |
894 | * to process any changes in the queue prioritize or state. | |
895 | */ | |
896 | int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv, | |
897 | const struct host_cmd_ds_command *resp) | |
898 | { | |
899 | u8 *curr = (u8 *) &resp->params.get_wmm_status; | |
900 | uint16_t resp_len = le16_to_cpu(resp->size), tlv_len; | |
acebe8c1 | 901 | int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK; |
c856197d | 902 | bool valid = true; |
5e6e3a92 BZ |
903 | |
904 | struct mwifiex_ie_types_data *tlv_hdr; | |
905 | struct mwifiex_ie_types_wmm_queue_status *tlv_wmm_qstatus; | |
906 | struct ieee_types_wmm_parameter *wmm_param_ie = NULL; | |
907 | struct mwifiex_wmm_ac_status *ac_status; | |
908 | ||
acebe8c1 ZL |
909 | mwifiex_dbg(priv->adapter, INFO, |
910 | "info: WMM: WMM_GET_STATUS cmdresp received: %d\n", | |
911 | resp_len); | |
5e6e3a92 BZ |
912 | |
913 | while ((resp_len >= sizeof(tlv_hdr->header)) && valid) { | |
914 | tlv_hdr = (struct mwifiex_ie_types_data *) curr; | |
915 | tlv_len = le16_to_cpu(tlv_hdr->header.len); | |
916 | ||
95edbc30 DC |
917 | if (resp_len < tlv_len + sizeof(tlv_hdr->header)) |
918 | break; | |
919 | ||
5e6e3a92 BZ |
920 | switch (le16_to_cpu(tlv_hdr->header.type)) { |
921 | case TLV_TYPE_WMMQSTATUS: | |
922 | tlv_wmm_qstatus = | |
923 | (struct mwifiex_ie_types_wmm_queue_status *) | |
924 | tlv_hdr; | |
acebe8c1 ZL |
925 | mwifiex_dbg(priv->adapter, CMD, |
926 | "info: CMD_RESP: WMM_GET_STATUS:\t" | |
927 | "QSTATUS TLV: %d, %d, %d\n", | |
928 | tlv_wmm_qstatus->queue_index, | |
929 | tlv_wmm_qstatus->flow_required, | |
930 | tlv_wmm_qstatus->disabled); | |
5e6e3a92 BZ |
931 | |
932 | ac_status = &priv->wmm.ac_status[tlv_wmm_qstatus-> | |
933 | queue_index]; | |
934 | ac_status->disabled = tlv_wmm_qstatus->disabled; | |
935 | ac_status->flow_required = | |
c65a30f3 | 936 | tlv_wmm_qstatus->flow_required; |
5e6e3a92 BZ |
937 | ac_status->flow_created = tlv_wmm_qstatus->flow_created; |
938 | break; | |
939 | ||
940 | case WLAN_EID_VENDOR_SPECIFIC: | |
941 | /* | |
942 | * Point the regular IEEE IE 2 bytes into the Marvell IE | |
943 | * and setup the IEEE IE type and length byte fields | |
944 | */ | |
945 | ||
946 | wmm_param_ie = | |
947 | (struct ieee_types_wmm_parameter *) (curr + | |
948 | 2); | |
949 | wmm_param_ie->vend_hdr.len = (u8) tlv_len; | |
950 | wmm_param_ie->vend_hdr.element_id = | |
951 | WLAN_EID_VENDOR_SPECIFIC; | |
952 | ||
acebe8c1 ZL |
953 | mwifiex_dbg(priv->adapter, CMD, |
954 | "info: CMD_RESP: WMM_GET_STATUS:\t" | |
955 | "WMM Parameter Set Count: %d\n", | |
956 | wmm_param_ie->qos_info_bitmap & mask); | |
5e6e3a92 BZ |
957 | |
958 | memcpy((u8 *) &priv->curr_bss_params.bss_descriptor. | |
959 | wmm_ie, wmm_param_ie, | |
960 | wmm_param_ie->vend_hdr.len + 2); | |
961 | ||
962 | break; | |
963 | ||
964 | default: | |
965 | valid = false; | |
966 | break; | |
967 | } | |
968 | ||
969 | curr += (tlv_len + sizeof(tlv_hdr->header)); | |
970 | resp_len -= (tlv_len + sizeof(tlv_hdr->header)); | |
971 | } | |
972 | ||
973 | mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie); | |
974 | mwifiex_wmm_setup_ac_downgrade(priv); | |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
979 | /* | |
980 | * Callback handler from the command module to allow insertion of a WMM TLV. | |
981 | * | |
982 | * If the BSS we are associating to supports WMM, this function adds the | |
983 | * required WMM Information IE to the association request command buffer in | |
984 | * the form of a Marvell extended IEEE IE. | |
985 | */ | |
986 | u32 | |
987 | mwifiex_wmm_process_association_req(struct mwifiex_private *priv, | |
988 | u8 **assoc_buf, | |
989 | struct ieee_types_wmm_parameter *wmm_ie, | |
990 | struct ieee80211_ht_cap *ht_cap) | |
991 | { | |
992 | struct mwifiex_ie_types_wmm_param_set *wmm_tlv; | |
993 | u32 ret_len = 0; | |
994 | ||
995 | /* Null checks */ | |
996 | if (!assoc_buf) | |
997 | return 0; | |
998 | if (!(*assoc_buf)) | |
999 | return 0; | |
1000 | ||
1001 | if (!wmm_ie) | |
1002 | return 0; | |
1003 | ||
acebe8c1 ZL |
1004 | mwifiex_dbg(priv->adapter, INFO, |
1005 | "info: WMM: process assoc req: bss->wmm_ie=%#x\n", | |
1006 | wmm_ie->vend_hdr.element_id); | |
5e6e3a92 | 1007 | |
c65a30f3 YAP |
1008 | if ((priv->wmm_required || |
1009 | (ht_cap && (priv->adapter->config_bands & BAND_GN || | |
1010 | priv->adapter->config_bands & BAND_AN))) && | |
1011 | wmm_ie->vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC) { | |
5e6e3a92 BZ |
1012 | wmm_tlv = (struct mwifiex_ie_types_wmm_param_set *) *assoc_buf; |
1013 | wmm_tlv->header.type = cpu_to_le16((u16) wmm_info_ie[0]); | |
1014 | wmm_tlv->header.len = cpu_to_le16((u16) wmm_info_ie[1]); | |
1015 | memcpy(wmm_tlv->wmm_ie, &wmm_info_ie[2], | |
c65a30f3 | 1016 | le16_to_cpu(wmm_tlv->header.len)); |
5e6e3a92 BZ |
1017 | if (wmm_ie->qos_info_bitmap & IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) |
1018 | memcpy((u8 *) (wmm_tlv->wmm_ie | |
c65a30f3 YAP |
1019 | + le16_to_cpu(wmm_tlv->header.len) |
1020 | - sizeof(priv->wmm_qosinfo)), | |
1021 | &priv->wmm_qosinfo, sizeof(priv->wmm_qosinfo)); | |
5e6e3a92 BZ |
1022 | |
1023 | ret_len = sizeof(wmm_tlv->header) | |
c65a30f3 | 1024 | + le16_to_cpu(wmm_tlv->header.len); |
5e6e3a92 BZ |
1025 | |
1026 | *assoc_buf += ret_len; | |
1027 | } | |
1028 | ||
1029 | return ret_len; | |
1030 | } | |
1031 | ||
1032 | /* | |
1033 | * This function computes the time delay in the driver queues for a | |
1034 | * given packet. | |
1035 | * | |
1036 | * When the packet is received at the OS/Driver interface, the current | |
1037 | * time is set in the packet structure. The difference between the present | |
1038 | * time and that received time is computed in this function and limited | |
1039 | * based on pre-compiled limits in the driver. | |
1040 | */ | |
1041 | u8 | |
1042 | mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv, | |
c65a30f3 | 1043 | const struct sk_buff *skb) |
5e6e3a92 | 1044 | { |
c64800e7 | 1045 | u32 queue_delay = ktime_to_ms(net_timedelta(skb->tstamp)); |
270e58e8 | 1046 | u8 ret_val; |
5e6e3a92 BZ |
1047 | |
1048 | /* | |
1049 | * Queue delay is passed as a uint8 in units of 2ms (ms shifted | |
1050 | * by 1). Min value (other than 0) is therefore 2ms, max is 510ms. | |
1051 | * | |
1052 | * Pass max value if queue_delay is beyond the uint8 range | |
1053 | */ | |
1054 | ret_val = (u8) (min(queue_delay, priv->wmm.drv_pkt_delay_max) >> 1); | |
1055 | ||
acebe8c1 ZL |
1056 | mwifiex_dbg(priv->adapter, DATA, "data: WMM: Pkt Delay: %d ms,\t" |
1057 | "%d ms sent to FW\n", queue_delay, ret_val); | |
5e6e3a92 BZ |
1058 | |
1059 | return ret_val; | |
1060 | } | |
1061 | ||
1062 | /* | |
1063 | * This function retrieves the highest priority RA list table pointer. | |
1064 | */ | |
1065 | static struct mwifiex_ra_list_tbl * | |
1066 | mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, | |
1067 | struct mwifiex_private **priv, int *tid) | |
1068 | { | |
1069 | struct mwifiex_private *priv_tmp; | |
2e237319 | 1070 | struct mwifiex_ra_list_tbl *ptr; |
5e6e3a92 | 1071 | struct mwifiex_tid_tbl *tid_ptr; |
bb7de2ba | 1072 | atomic_t *hqp; |
690e792c | 1073 | unsigned long flags_ra; |
5e6e3a92 BZ |
1074 | int i, j; |
1075 | ||
b006ed54 | 1076 | /* check the BSS with highest priority first */ |
5e6e3a92 | 1077 | for (j = adapter->priv_num - 1; j >= 0; --j) { |
b006ed54 AF |
1078 | /* iterate over BSS with the equal priority */ |
1079 | list_for_each_entry(adapter->bss_prio_tbl[j].bss_prio_cur, | |
1080 | &adapter->bss_prio_tbl[j].bss_prio_head, | |
1081 | list) { | |
16051b0e | 1082 | |
b006ed54 | 1083 | priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv; |
5e6e3a92 | 1084 | |
5c894633 AP |
1085 | if (!priv_tmp->port_open || |
1086 | (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0)) | |
b006ed54 | 1087 | continue; |
333f6b22 AF |
1088 | |
1089 | /* iterate over the WMM queues of the BSS */ | |
1090 | hqp = &priv_tmp->wmm.highest_queued_prio; | |
49729ff6 | 1091 | for (i = atomic_read(hqp); i >= LOW_PRIO_TID; --i) { |
5e6e3a92 | 1092 | |
2716fd7d AF |
1093 | spin_lock_irqsave(&priv_tmp->wmm. |
1094 | ra_list_spinlock, flags_ra); | |
1095 | ||
5e6e3a92 BZ |
1096 | tid_ptr = &(priv_tmp)->wmm. |
1097 | tid_tbl_ptr[tos_to_tid[i]]; | |
1098 | ||
2e237319 AF |
1099 | /* iterate over receiver addresses */ |
1100 | list_for_each_entry(ptr, &tid_ptr->ra_list, | |
1101 | list) { | |
5e6e3a92 | 1102 | |
b5b0f272 XH |
1103 | if (!ptr->tx_paused && |
1104 | !skb_queue_empty(&ptr->skb_head)) | |
2716fd7d | 1105 | /* holds both locks */ |
bb7de2ba | 1106 | goto found; |
2e237319 | 1107 | } |
bb7de2ba | 1108 | |
2716fd7d AF |
1109 | spin_unlock_irqrestore(&priv_tmp->wmm. |
1110 | ra_list_spinlock, | |
1111 | flags_ra); | |
5e6e3a92 | 1112 | } |
b006ed54 | 1113 | } |
5e6e3a92 | 1114 | |
5e6e3a92 | 1115 | } |
2716fd7d | 1116 | |
5e6e3a92 | 1117 | return NULL; |
bb7de2ba YAP |
1118 | |
1119 | found: | |
690e792c | 1120 | /* holds ra_list_spinlock */ |
bb7de2ba YAP |
1121 | if (atomic_read(hqp) > i) |
1122 | atomic_set(hqp, i); | |
2716fd7d | 1123 | spin_unlock_irqrestore(&priv_tmp->wmm.ra_list_spinlock, flags_ra); |
bb7de2ba YAP |
1124 | |
1125 | *priv = priv_tmp; | |
1126 | *tid = tos_to_tid[i]; | |
1127 | ||
1128 | return ptr; | |
5e6e3a92 BZ |
1129 | } |
1130 | ||
b006ed54 | 1131 | /* This functions rotates ra and bss lists so packets are picked round robin. |
2e237319 AF |
1132 | * |
1133 | * After a packet is successfully transmitted, rotate the ra list, so the ra | |
1134 | * next to the one transmitted, will come first in the list. This way we pick | |
b006ed54 AF |
1135 | * the ra' in a round robin fashion. Same applies to bss nodes of equal |
1136 | * priority. | |
2e237319 AF |
1137 | * |
1138 | * Function also increments wmm.packets_out counter. | |
1139 | */ | |
1140 | void mwifiex_rotate_priolists(struct mwifiex_private *priv, | |
1141 | struct mwifiex_ra_list_tbl *ra, | |
1142 | int tid) | |
1143 | { | |
b006ed54 AF |
1144 | struct mwifiex_adapter *adapter = priv->adapter; |
1145 | struct mwifiex_bss_prio_tbl *tbl = adapter->bss_prio_tbl; | |
2e237319 AF |
1146 | struct mwifiex_tid_tbl *tid_ptr = &priv->wmm.tid_tbl_ptr[tid]; |
1147 | unsigned long flags; | |
1148 | ||
b006ed54 AF |
1149 | spin_lock_irqsave(&tbl[priv->bss_priority].bss_prio_lock, flags); |
1150 | /* | |
1151 | * dirty trick: we remove 'head' temporarily and reinsert it after | |
1152 | * curr bss node. imagine list to stay fixed while head is moved | |
1153 | */ | |
1154 | list_move(&tbl[priv->bss_priority].bss_prio_head, | |
1155 | &tbl[priv->bss_priority].bss_prio_cur->list); | |
1156 | spin_unlock_irqrestore(&tbl[priv->bss_priority].bss_prio_lock, flags); | |
1157 | ||
2e237319 AF |
1158 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); |
1159 | if (mwifiex_is_ralist_valid(priv, ra, tid)) { | |
1160 | priv->wmm.packets_out[tid]++; | |
b006ed54 | 1161 | /* same as above */ |
2e237319 AF |
1162 | list_move(&tid_ptr->ra_list, &ra->list); |
1163 | } | |
1164 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
1165 | } | |
1166 | ||
d85c5fe4 AK |
1167 | /* |
1168 | * This function checks if 11n aggregation is possible. | |
1169 | */ | |
1170 | static int | |
1171 | mwifiex_is_11n_aggragation_possible(struct mwifiex_private *priv, | |
1172 | struct mwifiex_ra_list_tbl *ptr, | |
1173 | int max_buf_size) | |
1174 | { | |
1175 | int count = 0, total_size = 0; | |
1176 | struct sk_buff *skb, *tmp; | |
5a009adf AP |
1177 | int max_amsdu_size; |
1178 | ||
1179 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP && priv->ap_11n_enabled && | |
1180 | ptr->is_11n_enabled) | |
1181 | max_amsdu_size = min_t(int, ptr->max_amsdu, max_buf_size); | |
1182 | else | |
1183 | max_amsdu_size = max_buf_size; | |
d85c5fe4 AK |
1184 | |
1185 | skb_queue_walk_safe(&ptr->skb_head, skb, tmp) { | |
1186 | total_size += skb->len; | |
5a009adf | 1187 | if (total_size >= max_amsdu_size) |
d85c5fe4 AK |
1188 | break; |
1189 | if (++count >= MIN_NUM_AMSDU) | |
1190 | return true; | |
1191 | } | |
1192 | ||
1193 | return false; | |
1194 | } | |
1195 | ||
5e6e3a92 BZ |
1196 | /* |
1197 | * This function sends a single packet to firmware for transmission. | |
1198 | */ | |
1199 | static void | |
1200 | mwifiex_send_single_packet(struct mwifiex_private *priv, | |
1201 | struct mwifiex_ra_list_tbl *ptr, int ptr_index, | |
1202 | unsigned long ra_list_flags) | |
1203 | __releases(&priv->wmm.ra_list_spinlock) | |
1204 | { | |
1205 | struct sk_buff *skb, *skb_next; | |
1206 | struct mwifiex_tx_param tx_param; | |
1207 | struct mwifiex_adapter *adapter = priv->adapter; | |
5e6e3a92 BZ |
1208 | struct mwifiex_txinfo *tx_info; |
1209 | ||
1210 | if (skb_queue_empty(&ptr->skb_head)) { | |
1211 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1212 | ra_list_flags); | |
acebe8c1 | 1213 | mwifiex_dbg(adapter, DATA, "data: nothing to send\n"); |
5e6e3a92 BZ |
1214 | return; |
1215 | } | |
1216 | ||
1217 | skb = skb_dequeue(&ptr->skb_head); | |
1218 | ||
1219 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
acebe8c1 ZL |
1220 | mwifiex_dbg(adapter, DATA, |
1221 | "data: dequeuing the packet %p %p\n", ptr, skb); | |
5e6e3a92 | 1222 | |
c7d9ed9e | 1223 | ptr->total_pkt_count--; |
5e6e3a92 BZ |
1224 | |
1225 | if (!skb_queue_empty(&ptr->skb_head)) | |
1226 | skb_next = skb_peek(&ptr->skb_head); | |
1227 | else | |
1228 | skb_next = NULL; | |
1229 | ||
1230 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, ra_list_flags); | |
1231 | ||
1232 | tx_param.next_pkt_len = ((skb_next) ? skb_next->len + | |
1233 | sizeof(struct txpd) : 0); | |
1234 | ||
636c4598 | 1235 | if (mwifiex_process_tx(priv, skb, &tx_param) == -EBUSY) { |
5e6e3a92 BZ |
1236 | /* Queue the packet back at the head */ |
1237 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags); | |
1238 | ||
1239 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { | |
1240 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1241 | ra_list_flags); | |
47411a06 | 1242 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
1243 | return; |
1244 | } | |
1245 | ||
1246 | skb_queue_tail(&ptr->skb_head, skb); | |
1247 | ||
c7d9ed9e | 1248 | ptr->total_pkt_count++; |
f0cb84f8 | 1249 | ptr->ba_pkt_count++; |
5e6e3a92 BZ |
1250 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; |
1251 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1252 | ra_list_flags); | |
1253 | } else { | |
2e237319 | 1254 | mwifiex_rotate_priolists(priv, ptr, ptr_index); |
f699254c | 1255 | atomic_dec(&priv->wmm.tx_pkts_queued); |
5e6e3a92 BZ |
1256 | } |
1257 | } | |
1258 | ||
1259 | /* | |
1260 | * This function checks if the first packet in the given RA list | |
1261 | * is already processed or not. | |
1262 | */ | |
1263 | static int | |
1264 | mwifiex_is_ptr_processed(struct mwifiex_private *priv, | |
1265 | struct mwifiex_ra_list_tbl *ptr) | |
1266 | { | |
1267 | struct sk_buff *skb; | |
1268 | struct mwifiex_txinfo *tx_info; | |
1269 | ||
1270 | if (skb_queue_empty(&ptr->skb_head)) | |
1271 | return false; | |
1272 | ||
1273 | skb = skb_peek(&ptr->skb_head); | |
1274 | ||
1275 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1276 | if (tx_info->flags & MWIFIEX_BUF_FLAG_REQUEUED_PKT) | |
1277 | return true; | |
1278 | ||
1279 | return false; | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * This function sends a single processed packet to firmware for | |
1284 | * transmission. | |
1285 | */ | |
1286 | static void | |
1287 | mwifiex_send_processed_packet(struct mwifiex_private *priv, | |
1288 | struct mwifiex_ra_list_tbl *ptr, int ptr_index, | |
1289 | unsigned long ra_list_flags) | |
1290 | __releases(&priv->wmm.ra_list_spinlock) | |
1291 | { | |
1292 | struct mwifiex_tx_param tx_param; | |
1293 | struct mwifiex_adapter *adapter = priv->adapter; | |
1294 | int ret = -1; | |
1295 | struct sk_buff *skb, *skb_next; | |
1296 | struct mwifiex_txinfo *tx_info; | |
1297 | ||
1298 | if (skb_queue_empty(&ptr->skb_head)) { | |
1299 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1300 | ra_list_flags); | |
1301 | return; | |
1302 | } | |
1303 | ||
1304 | skb = skb_dequeue(&ptr->skb_head); | |
1305 | ||
e35000ea ZL |
1306 | if (adapter->data_sent || adapter->tx_lock_flag) { |
1307 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1308 | ra_list_flags); | |
1309 | skb_queue_tail(&adapter->tx_data_q, skb); | |
1310 | atomic_inc(&adapter->tx_queued); | |
1311 | return; | |
1312 | } | |
1313 | ||
5e6e3a92 BZ |
1314 | if (!skb_queue_empty(&ptr->skb_head)) |
1315 | skb_next = skb_peek(&ptr->skb_head); | |
1316 | else | |
1317 | skb_next = NULL; | |
1318 | ||
1319 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1320 | ||
1321 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, ra_list_flags); | |
4daffe35 AK |
1322 | |
1323 | if (adapter->iface_type == MWIFIEX_USB) { | |
1324 | adapter->data_sent = true; | |
1325 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_USB_EP_DATA, | |
1326 | skb, NULL); | |
1327 | } else { | |
1328 | tx_param.next_pkt_len = | |
1329 | ((skb_next) ? skb_next->len + | |
1330 | sizeof(struct txpd) : 0); | |
1331 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA, | |
1332 | skb, &tx_param); | |
1333 | } | |
1334 | ||
5e6e3a92 BZ |
1335 | switch (ret) { |
1336 | case -EBUSY: | |
acebe8c1 | 1337 | mwifiex_dbg(adapter, ERROR, "data: -EBUSY is returned\n"); |
5e6e3a92 BZ |
1338 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, ra_list_flags); |
1339 | ||
1340 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { | |
1341 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1342 | ra_list_flags); | |
47411a06 | 1343 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
1344 | return; |
1345 | } | |
1346 | ||
1347 | skb_queue_tail(&ptr->skb_head, skb); | |
1348 | ||
1349 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; | |
1350 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, | |
1351 | ra_list_flags); | |
1352 | break; | |
1353 | case -1: | |
e7f767a7 AP |
1354 | if (adapter->iface_type != MWIFIEX_PCIE) |
1355 | adapter->data_sent = false; | |
acebe8c1 | 1356 | mwifiex_dbg(adapter, ERROR, "host_to_card failed: %#x\n", ret); |
5e6e3a92 | 1357 | adapter->dbg.num_tx_host_to_card_failure++; |
47411a06 | 1358 | mwifiex_write_data_complete(adapter, skb, 0, ret); |
5e6e3a92 BZ |
1359 | break; |
1360 | case -EINPROGRESS: | |
e7f767a7 AP |
1361 | if (adapter->iface_type != MWIFIEX_PCIE) |
1362 | adapter->data_sent = false; | |
7a1f4e61 AK |
1363 | break; |
1364 | case 0: | |
1365 | mwifiex_write_data_complete(adapter, skb, 0, ret); | |
5e6e3a92 BZ |
1366 | default: |
1367 | break; | |
1368 | } | |
1369 | if (ret != -EBUSY) { | |
2e237319 | 1370 | mwifiex_rotate_priolists(priv, ptr, ptr_index); |
f699254c | 1371 | atomic_dec(&priv->wmm.tx_pkts_queued); |
5e6e3a92 BZ |
1372 | } |
1373 | } | |
1374 | ||
1375 | /* | |
1376 | * This function dequeues a packet from the highest priority list | |
1377 | * and transmits it. | |
1378 | */ | |
1379 | static int | |
1380 | mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) | |
1381 | { | |
1382 | struct mwifiex_ra_list_tbl *ptr; | |
1383 | struct mwifiex_private *priv = NULL; | |
1384 | int ptr_index = 0; | |
1385 | u8 ra[ETH_ALEN]; | |
1386 | int tid_del = 0, tid = 0; | |
1387 | unsigned long flags; | |
1388 | ||
1389 | ptr = mwifiex_wmm_get_highest_priolist_ptr(adapter, &priv, &ptr_index); | |
1390 | if (!ptr) | |
1391 | return -1; | |
1392 | ||
572e8f3e | 1393 | tid = mwifiex_get_tid(ptr); |
5e6e3a92 | 1394 | |
acebe8c1 | 1395 | mwifiex_dbg(adapter, DATA, "data: tid=%d\n", tid); |
5e6e3a92 BZ |
1396 | |
1397 | spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); | |
1398 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { | |
1399 | spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); | |
1400 | return -1; | |
1401 | } | |
1402 | ||
1403 | if (mwifiex_is_ptr_processed(priv, ptr)) { | |
1404 | mwifiex_send_processed_packet(priv, ptr, ptr_index, flags); | |
1405 | /* ra_list_spinlock has been freed in | |
1406 | mwifiex_send_processed_packet() */ | |
1407 | return 0; | |
1408 | } | |
1409 | ||
c65a30f3 | 1410 | if (!ptr->is_11n_enabled || |
39df5e82 ZL |
1411 | ptr->ba_status || |
1412 | priv->wps.session_enable) { | |
4c9f9fb2 | 1413 | if (ptr->is_11n_enabled && |
39df5e82 ZL |
1414 | ptr->ba_status && |
1415 | ptr->amsdu_in_ampdu && | |
1416 | mwifiex_is_amsdu_allowed(priv, tid) && | |
1417 | mwifiex_is_11n_aggragation_possible(priv, ptr, | |
4c9f9fb2 AK |
1418 | adapter->tx_buf_size)) |
1419 | mwifiex_11n_aggregate_pkt(priv, ptr, ptr_index, flags); | |
1420 | /* ra_list_spinlock has been freed in | |
1421 | * mwifiex_11n_aggregate_pkt() | |
1422 | */ | |
1423 | else | |
1424 | mwifiex_send_single_packet(priv, ptr, ptr_index, flags); | |
1425 | /* ra_list_spinlock has been freed in | |
1426 | * mwifiex_send_single_packet() | |
1427 | */ | |
5e6e3a92 | 1428 | } else { |
eac43227 | 1429 | if (mwifiex_is_ampdu_allowed(priv, ptr, tid) && |
f0cb84f8 | 1430 | ptr->ba_pkt_count > ptr->ba_packet_thr) { |
53d7938e | 1431 | if (mwifiex_space_avail_for_new_ba_stream(adapter)) { |
3e822635 YAP |
1432 | mwifiex_create_ba_tbl(priv, ptr->ra, tid, |
1433 | BA_SETUP_INPROGRESS); | |
5e6e3a92 BZ |
1434 | mwifiex_send_addba(priv, tid, ptr->ra); |
1435 | } else if (mwifiex_find_stream_to_delete | |
572e8f3e | 1436 | (priv, tid, &tid_del, ra)) { |
3e822635 YAP |
1437 | mwifiex_create_ba_tbl(priv, ptr->ra, tid, |
1438 | BA_SETUP_INPROGRESS); | |
5e6e3a92 BZ |
1439 | mwifiex_send_delba(priv, tid_del, ra, 1); |
1440 | } | |
1441 | } | |
4c9f9fb2 | 1442 | if (mwifiex_is_amsdu_allowed(priv, tid) && |
d85c5fe4 AK |
1443 | mwifiex_is_11n_aggragation_possible(priv, ptr, |
1444 | adapter->tx_buf_size)) | |
bd1c6142 | 1445 | mwifiex_11n_aggregate_pkt(priv, ptr, ptr_index, flags); |
5e6e3a92 BZ |
1446 | /* ra_list_spinlock has been freed in |
1447 | mwifiex_11n_aggregate_pkt() */ | |
1448 | else | |
1449 | mwifiex_send_single_packet(priv, ptr, ptr_index, flags); | |
1450 | /* ra_list_spinlock has been freed in | |
1451 | mwifiex_send_single_packet() */ | |
1452 | } | |
1453 | return 0; | |
1454 | } | |
1455 | ||
a1777327 AP |
1456 | void mwifiex_process_bypass_tx(struct mwifiex_adapter *adapter) |
1457 | { | |
1458 | struct mwifiex_tx_param tx_param; | |
1459 | struct sk_buff *skb; | |
1460 | struct mwifiex_txinfo *tx_info; | |
1461 | struct mwifiex_private *priv; | |
1462 | int i; | |
1463 | ||
1464 | if (adapter->data_sent || adapter->tx_lock_flag) | |
1465 | return; | |
1466 | ||
1467 | for (i = 0; i < adapter->priv_num; ++i) { | |
1468 | priv = adapter->priv[i]; | |
1469 | ||
1470 | if (skb_queue_empty(&priv->bypass_txq)) | |
1471 | continue; | |
1472 | ||
1473 | skb = skb_dequeue(&priv->bypass_txq); | |
1474 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1475 | ||
1476 | /* no aggregation for bypass packets */ | |
1477 | tx_param.next_pkt_len = 0; | |
1478 | ||
1479 | if (mwifiex_process_tx(priv, skb, &tx_param) == -EBUSY) { | |
1480 | skb_queue_head(&priv->bypass_txq, skb); | |
1481 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; | |
1482 | } else { | |
1483 | atomic_dec(&adapter->bypass_tx_pending); | |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | ||
5e6e3a92 BZ |
1488 | /* |
1489 | * This function transmits the highest priority packet awaiting in the | |
1490 | * WMM Queues. | |
1491 | */ | |
1492 | void | |
1493 | mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter) | |
1494 | { | |
1495 | do { | |
5e6e3a92 BZ |
1496 | if (mwifiex_dequeue_tx_packet(adapter)) |
1497 | break; | |
e35000ea ZL |
1498 | if (adapter->iface_type != MWIFIEX_SDIO) { |
1499 | if (adapter->data_sent || | |
1500 | adapter->tx_lock_flag) | |
1501 | break; | |
1502 | } else { | |
1503 | if (atomic_read(&adapter->tx_queued) >= | |
1504 | MWIFIEX_MAX_PKTS_TXQ) | |
1505 | break; | |
1506 | } | |
93968147 | 1507 | } while (!mwifiex_wmm_lists_empty(adapter)); |
5e6e3a92 | 1508 | } |