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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 | { | |
52f4f918 | 120 | u64 ns; |
5a009adf AP |
121 | /* setup ba_packet_threshold here random number between |
122 | * [BA_SETUP_PACKET_OFFSET, | |
123 | * BA_SETUP_PACKET_OFFSET+BA_SETUP_MAX_PACKET_THRESHOLD-1] | |
124 | */ | |
52f4f918 AB |
125 | ns = ktime_get_ns(); |
126 | ns += (ns >> 32) + (ns >> 16); | |
5a009adf | 127 | |
52f4f918 | 128 | return ((u8)ns % BA_SETUP_MAX_PACKET_THRESHOLD) + BA_SETUP_PACKET_OFFSET; |
5a009adf AP |
129 | } |
130 | ||
5e6e3a92 BZ |
131 | /* |
132 | * This function allocates and adds a RA list for all TIDs | |
133 | * with the given RA. | |
134 | */ | |
3b3a0162 | 135 | void mwifiex_ralist_add(struct mwifiex_private *priv, const u8 *ra) |
5e6e3a92 BZ |
136 | { |
137 | int i; | |
138 | struct mwifiex_ra_list_tbl *ra_list; | |
139 | struct mwifiex_adapter *adapter = priv->adapter; | |
5a009adf | 140 | struct mwifiex_sta_node *node; |
5a009adf | 141 | |
5e6e3a92 BZ |
142 | |
143 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
144 | ra_list = mwifiex_wmm_allocate_ralist_node(adapter, ra); | |
acebe8c1 ZL |
145 | mwifiex_dbg(adapter, INFO, |
146 | "info: created ra_list %p\n", ra_list); | |
5e6e3a92 BZ |
147 | |
148 | if (!ra_list) | |
149 | break; | |
150 | ||
5a009adf | 151 | ra_list->is_11n_enabled = 0; |
daeb5bb4 | 152 | ra_list->tdls_link = false; |
39df5e82 ZL |
153 | ra_list->ba_status = BA_SETUP_NONE; |
154 | ra_list->amsdu_in_ampdu = false; | |
5a009adf | 155 | if (!mwifiex_queuing_ra_based(priv)) { |
55a2c077 XH |
156 | if (mwifiex_is_tdls_link_setup |
157 | (mwifiex_get_tdls_link_status(priv, ra))) { | |
a983e48b | 158 | ra_list->tdls_link = true; |
daeb5bb4 AP |
159 | ra_list->is_11n_enabled = |
160 | mwifiex_tdls_peer_11n_enabled(priv, ra); | |
161 | } else { | |
162 | ra_list->is_11n_enabled = IS_11N_ENABLED(priv); | |
163 | } | |
5a009adf | 164 | } else { |
8a7f9fd8 | 165 | spin_lock_bh(&priv->sta_list_spinlock); |
c11fb985 | 166 | node = mwifiex_get_sta_entry(priv, ra); |
70c5ad7e ZL |
167 | if (node) |
168 | ra_list->tx_paused = node->tx_pause; | |
5a009adf AP |
169 | ra_list->is_11n_enabled = |
170 | mwifiex_is_sta_11n_enabled(priv, node); | |
171 | if (ra_list->is_11n_enabled) | |
172 | ra_list->max_amsdu = node->max_amsdu; | |
8a7f9fd8 | 173 | spin_unlock_bh(&priv->sta_list_spinlock); |
5a009adf | 174 | } |
5e6e3a92 | 175 | |
acebe8c1 ZL |
176 | mwifiex_dbg(adapter, DATA, "data: ralist %p: is_11n_enabled=%d\n", |
177 | ra_list, ra_list->is_11n_enabled); | |
5e6e3a92 | 178 | |
5a009adf | 179 | if (ra_list->is_11n_enabled) { |
f0cb84f8 | 180 | ra_list->ba_pkt_count = 0; |
5a009adf AP |
181 | ra_list->ba_packet_thr = |
182 | mwifiex_get_random_ba_threshold(); | |
183 | } | |
5e6e3a92 | 184 | list_add_tail(&ra_list->list, |
c65a30f3 | 185 | &priv->wmm.tid_tbl_ptr[i].ra_list); |
5e6e3a92 BZ |
186 | } |
187 | } | |
188 | ||
189 | /* | |
190 | * This function sets the WMM queue priorities to their default values. | |
191 | */ | |
192 | static void mwifiex_wmm_default_queue_priorities(struct mwifiex_private *priv) | |
193 | { | |
194 | /* Default queue priorities: VO->VI->BE->BK */ | |
195 | priv->wmm.queue_priority[0] = WMM_AC_VO; | |
196 | priv->wmm.queue_priority[1] = WMM_AC_VI; | |
197 | priv->wmm.queue_priority[2] = WMM_AC_BE; | |
198 | priv->wmm.queue_priority[3] = WMM_AC_BK; | |
199 | } | |
200 | ||
201 | /* | |
202 | * This function map ACs to TIDs. | |
203 | */ | |
204 | static void | |
41a24a29 | 205 | mwifiex_wmm_queue_priorities_tid(struct mwifiex_private *priv) |
5e6e3a92 | 206 | { |
41a24a29 | 207 | struct mwifiex_wmm_desc *wmm = &priv->wmm; |
49729ff6 | 208 | u8 *queue_priority = wmm->queue_priority; |
5e6e3a92 BZ |
209 | int i; |
210 | ||
211 | for (i = 0; i < 4; ++i) { | |
212 | tos_to_tid[7 - (i * 2)] = ac_to_tid[queue_priority[i]][1]; | |
213 | tos_to_tid[6 - (i * 2)] = ac_to_tid[queue_priority[i]][0]; | |
214 | } | |
49729ff6 MY |
215 | |
216 | for (i = 0; i < MAX_NUM_TID; ++i) | |
41a24a29 | 217 | priv->tos_to_tid_inv[tos_to_tid[i]] = (u8)i; |
49729ff6 MY |
218 | |
219 | atomic_set(&wmm->highest_queued_prio, HIGH_PRIO_TID); | |
5e6e3a92 BZ |
220 | } |
221 | ||
222 | /* | |
223 | * This function initializes WMM priority queues. | |
224 | */ | |
225 | void | |
226 | mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv, | |
227 | struct ieee_types_wmm_parameter *wmm_ie) | |
228 | { | |
229 | u16 cw_min, avg_back_off, tmp[4]; | |
230 | u32 i, j, num_ac; | |
231 | u8 ac_idx; | |
232 | ||
233 | if (!wmm_ie || !priv->wmm_enabled) { | |
234 | /* WMM is not enabled, just set the defaults and return */ | |
235 | mwifiex_wmm_default_queue_priorities(priv); | |
236 | return; | |
237 | } | |
238 | ||
acebe8c1 ZL |
239 | mwifiex_dbg(priv->adapter, INFO, |
240 | "info: WMM Parameter IE: version=%d,\t" | |
241 | "qos_info Parameter Set Count=%d, Reserved=%#x\n", | |
63d7ef36 | 242 | wmm_ie->version, wmm_ie->qos_info_bitmap & |
acebe8c1 ZL |
243 | IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK, |
244 | wmm_ie->reserved); | |
5e6e3a92 BZ |
245 | |
246 | for (num_ac = 0; num_ac < ARRAY_SIZE(wmm_ie->ac_params); num_ac++) { | |
c65a30f3 YAP |
247 | u8 ecw = wmm_ie->ac_params[num_ac].ecw_bitmap; |
248 | u8 aci_aifsn = wmm_ie->ac_params[num_ac].aci_aifsn_bitmap; | |
249 | cw_min = (1 << (ecw & MWIFIEX_ECW_MIN)) - 1; | |
250 | avg_back_off = (cw_min >> 1) + (aci_aifsn & MWIFIEX_AIFSN); | |
251 | ||
252 | ac_idx = wmm_aci_to_qidx_map[(aci_aifsn & MWIFIEX_ACI) >> 5]; | |
5e6e3a92 BZ |
253 | priv->wmm.queue_priority[ac_idx] = ac_idx; |
254 | tmp[ac_idx] = avg_back_off; | |
255 | ||
acebe8c1 ZL |
256 | mwifiex_dbg(priv->adapter, INFO, |
257 | "info: WMM: CWmax=%d CWmin=%d Avg Back-off=%d\n", | |
258 | (1 << ((ecw & MWIFIEX_ECW_MAX) >> 4)) - 1, | |
259 | cw_min, avg_back_off); | |
5e6e3a92 BZ |
260 | mwifiex_wmm_ac_debug_print(&wmm_ie->ac_params[num_ac]); |
261 | } | |
262 | ||
263 | /* Bubble sort */ | |
264 | for (i = 0; i < num_ac; i++) { | |
265 | for (j = 1; j < num_ac - i; j++) { | |
266 | if (tmp[j - 1] > tmp[j]) { | |
267 | swap(tmp[j - 1], tmp[j]); | |
268 | swap(priv->wmm.queue_priority[j - 1], | |
269 | priv->wmm.queue_priority[j]); | |
270 | } else if (tmp[j - 1] == tmp[j]) { | |
271 | if (priv->wmm.queue_priority[j - 1] | |
272 | < priv->wmm.queue_priority[j]) | |
273 | swap(priv->wmm.queue_priority[j - 1], | |
274 | priv->wmm.queue_priority[j]); | |
275 | } | |
276 | } | |
277 | } | |
278 | ||
41a24a29 | 279 | mwifiex_wmm_queue_priorities_tid(priv); |
5e6e3a92 BZ |
280 | } |
281 | ||
282 | /* | |
283 | * This function evaluates whether or not an AC is to be downgraded. | |
284 | * | |
285 | * In case the AC is not enabled, the highest AC is returned that is | |
286 | * enabled and does not require admission control. | |
287 | */ | |
288 | static enum mwifiex_wmm_ac_e | |
289 | mwifiex_wmm_eval_downgrade_ac(struct mwifiex_private *priv, | |
290 | enum mwifiex_wmm_ac_e eval_ac) | |
291 | { | |
292 | int down_ac; | |
293 | enum mwifiex_wmm_ac_e ret_ac; | |
294 | struct mwifiex_wmm_ac_status *ac_status; | |
295 | ||
296 | ac_status = &priv->wmm.ac_status[eval_ac]; | |
297 | ||
298 | if (!ac_status->disabled) | |
299 | /* Okay to use this AC, its enabled */ | |
300 | return eval_ac; | |
301 | ||
302 | /* Setup a default return value of the lowest priority */ | |
303 | ret_ac = WMM_AC_BK; | |
304 | ||
305 | /* | |
306 | * Find the highest AC that is enabled and does not require | |
307 | * admission control. The spec disallows downgrading to an AC, | |
308 | * which is enabled due to a completed admission control. | |
309 | * Unadmitted traffic is not to be sent on an AC with admitted | |
310 | * traffic. | |
311 | */ | |
312 | for (down_ac = WMM_AC_BK; down_ac < eval_ac; down_ac++) { | |
313 | ac_status = &priv->wmm.ac_status[down_ac]; | |
314 | ||
315 | if (!ac_status->disabled && !ac_status->flow_required) | |
316 | /* AC is enabled and does not require admission | |
317 | control */ | |
318 | ret_ac = (enum mwifiex_wmm_ac_e) down_ac; | |
319 | } | |
320 | ||
321 | return ret_ac; | |
322 | } | |
323 | ||
324 | /* | |
325 | * This function downgrades WMM priority queue. | |
326 | */ | |
327 | void | |
328 | mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv) | |
329 | { | |
330 | int ac_val; | |
331 | ||
acebe8c1 ZL |
332 | mwifiex_dbg(priv->adapter, INFO, "info: WMM: AC Priorities:\t" |
333 | "BK(0), BE(1), VI(2), VO(3)\n"); | |
5e6e3a92 BZ |
334 | |
335 | if (!priv->wmm_enabled) { | |
336 | /* WMM is not enabled, default priorities */ | |
337 | for (ac_val = WMM_AC_BK; ac_val <= WMM_AC_VO; ac_val++) | |
338 | priv->wmm.ac_down_graded_vals[ac_val] = | |
c65a30f3 | 339 | (enum mwifiex_wmm_ac_e) ac_val; |
5e6e3a92 BZ |
340 | } else { |
341 | for (ac_val = WMM_AC_BK; ac_val <= WMM_AC_VO; ac_val++) { | |
342 | priv->wmm.ac_down_graded_vals[ac_val] | |
343 | = mwifiex_wmm_eval_downgrade_ac(priv, | |
344 | (enum mwifiex_wmm_ac_e) ac_val); | |
acebe8c1 ZL |
345 | mwifiex_dbg(priv->adapter, INFO, |
346 | "info: WMM: AC PRIO %d maps to %d\n", | |
347 | ac_val, | |
348 | priv->wmm.ac_down_graded_vals[ac_val]); | |
5e6e3a92 BZ |
349 | } |
350 | } | |
351 | } | |
352 | ||
353 | /* | |
354 | * This function converts the IP TOS field to an WMM AC | |
355 | * Queue assignment. | |
356 | */ | |
357 | static enum mwifiex_wmm_ac_e | |
358 | mwifiex_wmm_convert_tos_to_ac(struct mwifiex_adapter *adapter, u32 tos) | |
359 | { | |
360 | /* Map of TOS UP values to WMM AC */ | |
7dfb0ebd CIK |
361 | static const enum mwifiex_wmm_ac_e tos_to_ac[] = { |
362 | WMM_AC_BE, | |
5e6e3a92 BZ |
363 | WMM_AC_BK, |
364 | WMM_AC_BK, | |
365 | WMM_AC_BE, | |
366 | WMM_AC_VI, | |
367 | WMM_AC_VI, | |
368 | WMM_AC_VO, | |
369 | WMM_AC_VO | |
370 | }; | |
371 | ||
372 | if (tos >= ARRAY_SIZE(tos_to_ac)) | |
373 | return WMM_AC_BE; | |
374 | ||
375 | return tos_to_ac[tos]; | |
376 | } | |
377 | ||
378 | /* | |
379 | * This function evaluates a given TID and downgrades it to a lower | |
380 | * TID if the WMM Parameter IE received from the AP indicates that the | |
381 | * AP is disabled (due to call admission control (ACM bit). Mapping | |
382 | * of TID to AC is taken care of internally. | |
383 | */ | |
5f2caaf3 | 384 | u8 mwifiex_wmm_downgrade_tid(struct mwifiex_private *priv, u32 tid) |
5e6e3a92 BZ |
385 | { |
386 | enum mwifiex_wmm_ac_e ac, ac_down; | |
387 | u8 new_tid; | |
388 | ||
389 | ac = mwifiex_wmm_convert_tos_to_ac(priv->adapter, tid); | |
390 | ac_down = priv->wmm.ac_down_graded_vals[ac]; | |
391 | ||
392 | /* Send the index to tid array, picking from the array will be | |
393 | * taken care by dequeuing function | |
394 | */ | |
395 | new_tid = ac_to_tid[ac_down][tid % 2]; | |
396 | ||
397 | return new_tid; | |
398 | } | |
399 | ||
400 | /* | |
401 | * This function initializes the WMM state information and the | |
402 | * WMM data path queues. | |
403 | */ | |
404 | void | |
405 | mwifiex_wmm_init(struct mwifiex_adapter *adapter) | |
406 | { | |
407 | int i, j; | |
408 | struct mwifiex_private *priv; | |
409 | ||
410 | for (j = 0; j < adapter->priv_num; ++j) { | |
411 | priv = adapter->priv[j]; | |
412 | if (!priv) | |
413 | continue; | |
414 | ||
415 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
4c9f9fb2 AK |
416 | if (!disable_tx_amsdu && |
417 | adapter->tx_buf_size > MWIFIEX_TX_DATA_BUF_SIZE_2K) | |
418 | priv->aggr_prio_tbl[i].amsdu = | |
419 | priv->tos_to_tid_inv[i]; | |
420 | else | |
421 | priv->aggr_prio_tbl[i].amsdu = | |
422 | BA_STREAM_NOT_ALLOWED; | |
41a24a29 AP |
423 | priv->aggr_prio_tbl[i].ampdu_ap = |
424 | priv->tos_to_tid_inv[i]; | |
425 | priv->aggr_prio_tbl[i].ampdu_user = | |
426 | priv->tos_to_tid_inv[i]; | |
5e6e3a92 BZ |
427 | } |
428 | ||
31a09a5d AP |
429 | priv->aggr_prio_tbl[6].amsdu |
430 | = priv->aggr_prio_tbl[6].ampdu_ap | |
431 | = priv->aggr_prio_tbl[6].ampdu_user | |
432 | = BA_STREAM_NOT_ALLOWED; | |
433 | ||
434 | priv->aggr_prio_tbl[7].amsdu = priv->aggr_prio_tbl[7].ampdu_ap | |
435 | = priv->aggr_prio_tbl[7].ampdu_user | |
436 | = BA_STREAM_NOT_ALLOWED; | |
437 | ||
04abc0a3 | 438 | mwifiex_set_ba_params(priv); |
92583924 SP |
439 | mwifiex_reset_11n_rx_seq_num(priv); |
440 | ||
6970cd44 | 441 | priv->wmm.drv_pkt_delay_max = MWIFIEX_WMM_DRV_DELAY_MAX; |
f699254c | 442 | atomic_set(&priv->wmm.tx_pkts_queued, 0); |
49729ff6 | 443 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); |
5e6e3a92 BZ |
444 | } |
445 | } | |
446 | ||
a1777327 AP |
447 | int mwifiex_bypass_txlist_empty(struct mwifiex_adapter *adapter) |
448 | { | |
735ab6bf ZL |
449 | struct mwifiex_private *priv; |
450 | int i; | |
451 | ||
452 | for (i = 0; i < adapter->priv_num; i++) { | |
453 | priv = adapter->priv[i]; | |
454 | if (!priv) | |
455 | continue; | |
456 | if (adapter->if_ops.is_port_ready && | |
457 | !adapter->if_ops.is_port_ready(priv)) | |
458 | continue; | |
459 | if (!skb_queue_empty(&priv->bypass_txq)) | |
460 | return false; | |
461 | } | |
462 | ||
463 | return true; | |
a1777327 AP |
464 | } |
465 | ||
5e6e3a92 BZ |
466 | /* |
467 | * This function checks if WMM Tx queue is empty. | |
468 | */ | |
469 | int | |
470 | mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter) | |
471 | { | |
f699254c | 472 | int i; |
5e6e3a92 BZ |
473 | struct mwifiex_private *priv; |
474 | ||
f699254c MY |
475 | for (i = 0; i < adapter->priv_num; ++i) { |
476 | priv = adapter->priv[i]; | |
735ab6bf ZL |
477 | if (!priv) |
478 | continue; | |
dc386ce7 | 479 | if (!priv->port_open && |
480 | (priv->bss_mode != NL80211_IFTYPE_ADHOC)) | |
735ab6bf ZL |
481 | continue; |
482 | if (adapter->if_ops.is_port_ready && | |
483 | !adapter->if_ops.is_port_ready(priv)) | |
5c894633 | 484 | continue; |
735ab6bf | 485 | if (atomic_read(&priv->wmm.tx_pkts_queued)) |
a8aa69dc | 486 | return false; |
5e6e3a92 BZ |
487 | } |
488 | ||
489 | return true; | |
490 | } | |
491 | ||
492 | /* | |
493 | * This function deletes all packets in an RA list node. | |
494 | * | |
495 | * The packet sent completion callback handler are called with | |
496 | * status failure, after they are dequeued to ensure proper | |
497 | * cleanup. The RA list node itself is freed at the end. | |
498 | */ | |
499 | static void | |
500 | mwifiex_wmm_del_pkts_in_ralist_node(struct mwifiex_private *priv, | |
501 | struct mwifiex_ra_list_tbl *ra_list) | |
502 | { | |
503 | struct mwifiex_adapter *adapter = priv->adapter; | |
504 | struct sk_buff *skb, *tmp; | |
505 | ||
c44c0403 AK |
506 | skb_queue_walk_safe(&ra_list->skb_head, skb, tmp) { |
507 | skb_unlink(skb, &ra_list->skb_head); | |
47411a06 | 508 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
c44c0403 | 509 | } |
5e6e3a92 BZ |
510 | } |
511 | ||
512 | /* | |
513 | * This function deletes all packets in an RA list. | |
514 | * | |
515 | * Each nodes in the RA list are freed individually first, and then | |
516 | * the RA list itself is freed. | |
517 | */ | |
518 | static void | |
519 | mwifiex_wmm_del_pkts_in_ralist(struct mwifiex_private *priv, | |
520 | struct list_head *ra_list_head) | |
521 | { | |
522 | struct mwifiex_ra_list_tbl *ra_list; | |
523 | ||
524 | list_for_each_entry(ra_list, ra_list_head, list) | |
525 | mwifiex_wmm_del_pkts_in_ralist_node(priv, ra_list); | |
526 | } | |
527 | ||
528 | /* | |
529 | * This function deletes all packets in all RA lists. | |
530 | */ | |
531 | static void mwifiex_wmm_cleanup_queues(struct mwifiex_private *priv) | |
532 | { | |
533 | int i; | |
534 | ||
535 | for (i = 0; i < MAX_NUM_TID; i++) | |
536 | mwifiex_wmm_del_pkts_in_ralist(priv, &priv->wmm.tid_tbl_ptr[i]. | |
c65a30f3 | 537 | ra_list); |
f699254c MY |
538 | |
539 | atomic_set(&priv->wmm.tx_pkts_queued, 0); | |
49729ff6 | 540 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); |
5e6e3a92 BZ |
541 | } |
542 | ||
543 | /* | |
544 | * This function deletes all route addresses from all RA lists. | |
545 | */ | |
546 | static void mwifiex_wmm_delete_all_ralist(struct mwifiex_private *priv) | |
547 | { | |
548 | struct mwifiex_ra_list_tbl *ra_list, *tmp_node; | |
549 | int i; | |
550 | ||
551 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
acebe8c1 ZL |
552 | mwifiex_dbg(priv->adapter, INFO, |
553 | "info: ra_list: freeing buf for tid %d\n", i); | |
5e6e3a92 | 554 | list_for_each_entry_safe(ra_list, tmp_node, |
c65a30f3 YAP |
555 | &priv->wmm.tid_tbl_ptr[i].ra_list, |
556 | list) { | |
5e6e3a92 BZ |
557 | list_del(&ra_list->list); |
558 | kfree(ra_list); | |
559 | } | |
560 | ||
561 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[i].ra_list); | |
5e6e3a92 BZ |
562 | } |
563 | } | |
564 | ||
808bbebc AK |
565 | static int mwifiex_free_ack_frame(int id, void *p, void *data) |
566 | { | |
567 | pr_warn("Have pending ack frames!\n"); | |
568 | kfree_skb(p); | |
569 | return 0; | |
570 | } | |
571 | ||
5e6e3a92 BZ |
572 | /* |
573 | * This function cleans up the Tx and Rx queues. | |
574 | * | |
575 | * Cleanup includes - | |
576 | * - All packets in RA lists | |
577 | * - All entries in Rx reorder table | |
578 | * - All entries in Tx BA stream table | |
579 | * - MPA buffer (if required) | |
580 | * - All RA lists | |
581 | */ | |
582 | void | |
583 | mwifiex_clean_txrx(struct mwifiex_private *priv) | |
584 | { | |
56bd24a1 | 585 | struct sk_buff *skb, *tmp; |
5e6e3a92 BZ |
586 | |
587 | mwifiex_11n_cleanup_reorder_tbl(priv); | |
8a7f9fd8 | 588 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
589 | |
590 | mwifiex_wmm_cleanup_queues(priv); | |
591 | mwifiex_11n_delete_all_tx_ba_stream_tbl(priv); | |
592 | ||
593 | if (priv->adapter->if_ops.cleanup_mpa_buf) | |
594 | priv->adapter->if_ops.cleanup_mpa_buf(priv->adapter); | |
595 | ||
596 | mwifiex_wmm_delete_all_ralist(priv); | |
597 | memcpy(tos_to_tid, ac_to_tid, sizeof(tos_to_tid)); | |
598 | ||
4f7ba432 | 599 | if (priv->adapter->if_ops.clean_pcie_ring && |
fc3a2fca | 600 | !test_bit(MWIFIEX_SURPRISE_REMOVED, &priv->adapter->work_flags)) |
fbd7e7ac | 601 | priv->adapter->if_ops.clean_pcie_ring(priv->adapter); |
8a7f9fd8 | 602 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
56bd24a1 | 603 | |
c44c0403 AK |
604 | skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) { |
605 | skb_unlink(skb, &priv->tdls_txq); | |
56bd24a1 | 606 | mwifiex_write_data_complete(priv->adapter, skb, 0, -1); |
c44c0403 | 607 | } |
808bbebc | 608 | |
c44c0403 AK |
609 | skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { |
610 | skb_unlink(skb, &priv->bypass_txq); | |
a1777327 | 611 | mwifiex_write_data_complete(priv->adapter, skb, 0, -1); |
c44c0403 | 612 | } |
a1777327 AP |
613 | atomic_set(&priv->adapter->bypass_tx_pending, 0); |
614 | ||
808bbebc AK |
615 | idr_for_each(&priv->ack_status_frames, mwifiex_free_ack_frame, NULL); |
616 | idr_destroy(&priv->ack_status_frames); | |
5e6e3a92 BZ |
617 | } |
618 | ||
619 | /* | |
620 | * This function retrieves a particular RA list node, matching with the | |
621 | * given TID and RA address. | |
622 | */ | |
39df5e82 | 623 | struct mwifiex_ra_list_tbl * |
5e6e3a92 | 624 | mwifiex_wmm_get_ralist_node(struct mwifiex_private *priv, u8 tid, |
3b3a0162 | 625 | const u8 *ra_addr) |
5e6e3a92 BZ |
626 | { |
627 | struct mwifiex_ra_list_tbl *ra_list; | |
628 | ||
629 | list_for_each_entry(ra_list, &priv->wmm.tid_tbl_ptr[tid].ra_list, | |
630 | list) { | |
631 | if (!memcmp(ra_list->ra, ra_addr, ETH_ALEN)) | |
632 | return ra_list; | |
633 | } | |
634 | ||
635 | return NULL; | |
636 | } | |
637 | ||
4e6ee91b AP |
638 | void mwifiex_update_ralist_tx_pause(struct mwifiex_private *priv, u8 *mac, |
639 | u8 tx_pause) | |
640 | { | |
641 | struct mwifiex_ra_list_tbl *ra_list; | |
642 | u32 pkt_cnt = 0, tx_pkts_queued; | |
4e6ee91b AP |
643 | int i; |
644 | ||
8a7f9fd8 | 645 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
4e6ee91b AP |
646 | |
647 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
648 | ra_list = mwifiex_wmm_get_ralist_node(priv, i, mac); | |
649 | if (ra_list && ra_list->tx_paused != tx_pause) { | |
650 | pkt_cnt += ra_list->total_pkt_count; | |
651 | ra_list->tx_paused = tx_pause; | |
652 | if (tx_pause) | |
653 | priv->wmm.pkts_paused[i] += | |
654 | ra_list->total_pkt_count; | |
655 | else | |
656 | priv->wmm.pkts_paused[i] -= | |
657 | ra_list->total_pkt_count; | |
658 | } | |
659 | } | |
660 | ||
f7669877 XH |
661 | if (pkt_cnt) { |
662 | tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); | |
663 | if (tx_pause) | |
664 | tx_pkts_queued -= pkt_cnt; | |
665 | else | |
666 | tx_pkts_queued += pkt_cnt; | |
667 | ||
668 | atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); | |
669 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); | |
670 | } | |
8a7f9fd8 | 671 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
f7669877 XH |
672 | } |
673 | ||
08a7e621 MY |
674 | /* This function updates non-tdls peer ralist tx_pause while |
675 | * tdls channel switching | |
f7669877 XH |
676 | */ |
677 | void mwifiex_update_ralist_tx_pause_in_tdls_cs(struct mwifiex_private *priv, | |
678 | u8 *mac, u8 tx_pause) | |
679 | { | |
680 | struct mwifiex_ra_list_tbl *ra_list; | |
681 | u32 pkt_cnt = 0, tx_pkts_queued; | |
f7669877 XH |
682 | int i; |
683 | ||
8a7f9fd8 | 684 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
f7669877 XH |
685 | |
686 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
687 | list_for_each_entry(ra_list, &priv->wmm.tid_tbl_ptr[i].ra_list, | |
688 | list) { | |
689 | if (!memcmp(ra_list->ra, mac, ETH_ALEN)) | |
690 | continue; | |
691 | ||
8785955b | 692 | if (ra_list->tx_paused != tx_pause) { |
f7669877 XH |
693 | pkt_cnt += ra_list->total_pkt_count; |
694 | ra_list->tx_paused = tx_pause; | |
695 | if (tx_pause) | |
696 | priv->wmm.pkts_paused[i] += | |
697 | ra_list->total_pkt_count; | |
698 | else | |
699 | priv->wmm.pkts_paused[i] -= | |
700 | ra_list->total_pkt_count; | |
701 | } | |
702 | } | |
703 | } | |
704 | ||
4e6ee91b AP |
705 | if (pkt_cnt) { |
706 | tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); | |
707 | if (tx_pause) | |
708 | tx_pkts_queued -= pkt_cnt; | |
709 | else | |
710 | tx_pkts_queued += pkt_cnt; | |
711 | ||
712 | atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); | |
713 | atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); | |
714 | } | |
8a7f9fd8 | 715 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
4e6ee91b AP |
716 | } |
717 | ||
5e6e3a92 BZ |
718 | /* |
719 | * This function retrieves an RA list node for a given TID and | |
720 | * RA address pair. | |
721 | * | |
722 | * If no such node is found, a new node is added first and then | |
723 | * retrieved. | |
724 | */ | |
5f2caaf3 | 725 | struct mwifiex_ra_list_tbl * |
3b3a0162 JB |
726 | mwifiex_wmm_get_queue_raptr(struct mwifiex_private *priv, u8 tid, |
727 | const u8 *ra_addr) | |
5e6e3a92 BZ |
728 | { |
729 | struct mwifiex_ra_list_tbl *ra_list; | |
730 | ||
731 | ra_list = mwifiex_wmm_get_ralist_node(priv, tid, ra_addr); | |
732 | if (ra_list) | |
733 | return ra_list; | |
734 | mwifiex_ralist_add(priv, ra_addr); | |
735 | ||
736 | return mwifiex_wmm_get_ralist_node(priv, tid, ra_addr); | |
737 | } | |
738 | ||
9817fffb AP |
739 | /* |
740 | * This function deletes RA list nodes for given mac for all TIDs. | |
741 | * Function also decrements TX pending count accordingly. | |
742 | */ | |
743 | void | |
744 | mwifiex_wmm_del_peer_ra_list(struct mwifiex_private *priv, const u8 *ra_addr) | |
745 | { | |
746 | struct mwifiex_ra_list_tbl *ra_list; | |
9817fffb AP |
747 | int i; |
748 | ||
8a7f9fd8 | 749 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
9817fffb AP |
750 | |
751 | for (i = 0; i < MAX_NUM_TID; ++i) { | |
752 | ra_list = mwifiex_wmm_get_ralist_node(priv, i, ra_addr); | |
753 | ||
754 | if (!ra_list) | |
755 | continue; | |
756 | mwifiex_wmm_del_pkts_in_ralist_node(priv, ra_list); | |
70c5ad7e ZL |
757 | if (ra_list->tx_paused) |
758 | priv->wmm.pkts_paused[i] -= ra_list->total_pkt_count; | |
759 | else | |
760 | atomic_sub(ra_list->total_pkt_count, | |
761 | &priv->wmm.tx_pkts_queued); | |
9817fffb AP |
762 | list_del(&ra_list->list); |
763 | kfree(ra_list); | |
764 | } | |
8a7f9fd8 | 765 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
9817fffb AP |
766 | } |
767 | ||
5e6e3a92 BZ |
768 | /* |
769 | * This function checks if a particular RA list node exists in a given TID | |
770 | * table index. | |
771 | */ | |
772 | int | |
773 | mwifiex_is_ralist_valid(struct mwifiex_private *priv, | |
774 | struct mwifiex_ra_list_tbl *ra_list, int ptr_index) | |
775 | { | |
776 | struct mwifiex_ra_list_tbl *rlist; | |
777 | ||
778 | list_for_each_entry(rlist, &priv->wmm.tid_tbl_ptr[ptr_index].ra_list, | |
779 | list) { | |
780 | if (rlist == ra_list) | |
781 | return true; | |
782 | } | |
783 | ||
784 | return false; | |
785 | } | |
786 | ||
a1777327 AP |
787 | /* |
788 | * This function adds a packet to bypass TX queue. | |
789 | * This is special TX queue for packets which can be sent even when port_open | |
790 | * is false. | |
791 | */ | |
792 | void | |
793 | mwifiex_wmm_add_buf_bypass_txqueue(struct mwifiex_private *priv, | |
794 | struct sk_buff *skb) | |
795 | { | |
796 | skb_queue_tail(&priv->bypass_txq, skb); | |
797 | } | |
798 | ||
5e6e3a92 BZ |
799 | /* |
800 | * This function adds a packet to WMM queue. | |
801 | * | |
802 | * In disconnected state the packet is immediately dropped and the | |
803 | * packet send completion callback is called with status failure. | |
804 | * | |
805 | * Otherwise, the correct RA list node is located and the packet | |
806 | * is queued at the list tail. | |
807 | */ | |
808 | void | |
2690e1bb | 809 | mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, |
5e6e3a92 BZ |
810 | struct sk_buff *skb) |
811 | { | |
2690e1bb | 812 | struct mwifiex_adapter *adapter = priv->adapter; |
5e6e3a92 BZ |
813 | u32 tid; |
814 | struct mwifiex_ra_list_tbl *ra_list; | |
815 | u8 ra[ETH_ALEN], tid_down; | |
d63bf5e5 AP |
816 | struct list_head list_head; |
817 | int tdls_status = TDLS_NOT_SETUP; | |
818 | struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; | |
819 | struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb); | |
820 | ||
821 | memcpy(ra, eth_hdr->h_dest, ETH_ALEN); | |
822 | ||
823 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA && | |
824 | ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) { | |
825 | if (ntohs(eth_hdr->h_proto) == ETH_P_TDLS) | |
acebe8c1 ZL |
826 | mwifiex_dbg(adapter, DATA, |
827 | "TDLS setup packet for %pM.\t" | |
828 | "Don't block\n", ra); | |
16e8552a | 829 | else if (memcmp(priv->cfg_bssid, ra, ETH_ALEN)) |
d63bf5e5 AP |
830 | tdls_status = mwifiex_get_tdls_link_status(priv, ra); |
831 | } | |
5e6e3a92 | 832 | |
e39faa73 | 833 | if (!priv->media_connected && !mwifiex_is_skb_mgmt_frame(skb)) { |
acebe8c1 | 834 | mwifiex_dbg(adapter, DATA, "data: drop packet in disconnect\n"); |
47411a06 | 835 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
836 | return; |
837 | } | |
838 | ||
839 | tid = skb->priority; | |
840 | ||
8a7f9fd8 | 841 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
842 | |
843 | tid_down = mwifiex_wmm_downgrade_tid(priv, tid); | |
844 | ||
845 | /* In case of infra as we have already created the list during | |
846 | association we just don't have to call get_queue_raptr, we will | |
847 | have only 1 raptr for a tid in case of infra */ | |
e39faa73 SP |
848 | if (!mwifiex_queuing_ra_based(priv) && |
849 | !mwifiex_is_skb_mgmt_frame(skb)) { | |
d63bf5e5 AP |
850 | switch (tdls_status) { |
851 | case TDLS_SETUP_COMPLETE: | |
55a2c077 XH |
852 | case TDLS_CHAN_SWITCHING: |
853 | case TDLS_IN_BASE_CHAN: | |
854 | case TDLS_IN_OFF_CHAN: | |
d63bf5e5 AP |
855 | ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, |
856 | ra); | |
857 | tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT; | |
858 | break; | |
859 | case TDLS_SETUP_INPROGRESS: | |
860 | skb_queue_tail(&priv->tdls_txq, skb); | |
8a7f9fd8 | 861 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
d63bf5e5 AP |
862 | return; |
863 | default: | |
864 | list_head = priv->wmm.tid_tbl_ptr[tid_down].ra_list; | |
01926202 SL |
865 | ra_list = list_first_entry_or_null(&list_head, |
866 | struct mwifiex_ra_list_tbl, list); | |
d63bf5e5 AP |
867 | break; |
868 | } | |
5e6e3a92 BZ |
869 | } else { |
870 | memcpy(ra, skb->data, ETH_ALEN); | |
e39faa73 | 871 | if (ra[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb)) |
93803b33 | 872 | eth_broadcast_addr(ra); |
5e6e3a92 BZ |
873 | ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra); |
874 | } | |
875 | ||
876 | if (!ra_list) { | |
8a7f9fd8 | 877 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
47411a06 | 878 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
879 | return; |
880 | } | |
881 | ||
882 | skb_queue_tail(&ra_list->skb_head, skb); | |
883 | ||
f0cb84f8 | 884 | ra_list->ba_pkt_count++; |
c7d9ed9e | 885 | ra_list->total_pkt_count++; |
5e6e3a92 | 886 | |
49729ff6 | 887 | if (atomic_read(&priv->wmm.highest_queued_prio) < |
41a24a29 | 888 | priv->tos_to_tid_inv[tid_down]) |
49729ff6 | 889 | atomic_set(&priv->wmm.highest_queued_prio, |
41a24a29 | 890 | priv->tos_to_tid_inv[tid_down]); |
49729ff6 | 891 | |
9186a1f3 XH |
892 | if (ra_list->tx_paused) |
893 | priv->wmm.pkts_paused[tid_down]++; | |
894 | else | |
895 | atomic_inc(&priv->wmm.tx_pkts_queued); | |
2716fd7d | 896 | |
8a7f9fd8 | 897 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
898 | } |
899 | ||
900 | /* | |
901 | * This function processes the get WMM status command response from firmware. | |
902 | * | |
903 | * The response may contain multiple TLVs - | |
904 | * - AC Queue status TLVs | |
905 | * - Current WMM Parameter IE TLV | |
906 | * - Admission Control action frame TLVs | |
907 | * | |
908 | * This function parses the TLVs and then calls further specific functions | |
909 | * to process any changes in the queue prioritize or state. | |
910 | */ | |
911 | int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv, | |
912 | const struct host_cmd_ds_command *resp) | |
913 | { | |
914 | u8 *curr = (u8 *) &resp->params.get_wmm_status; | |
915 | uint16_t resp_len = le16_to_cpu(resp->size), tlv_len; | |
acebe8c1 | 916 | int mask = IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK; |
c856197d | 917 | bool valid = true; |
5e6e3a92 BZ |
918 | |
919 | struct mwifiex_ie_types_data *tlv_hdr; | |
920 | struct mwifiex_ie_types_wmm_queue_status *tlv_wmm_qstatus; | |
921 | struct ieee_types_wmm_parameter *wmm_param_ie = NULL; | |
922 | struct mwifiex_wmm_ac_status *ac_status; | |
923 | ||
acebe8c1 ZL |
924 | mwifiex_dbg(priv->adapter, INFO, |
925 | "info: WMM: WMM_GET_STATUS cmdresp received: %d\n", | |
926 | resp_len); | |
5e6e3a92 BZ |
927 | |
928 | while ((resp_len >= sizeof(tlv_hdr->header)) && valid) { | |
929 | tlv_hdr = (struct mwifiex_ie_types_data *) curr; | |
930 | tlv_len = le16_to_cpu(tlv_hdr->header.len); | |
931 | ||
95edbc30 DC |
932 | if (resp_len < tlv_len + sizeof(tlv_hdr->header)) |
933 | break; | |
934 | ||
5e6e3a92 BZ |
935 | switch (le16_to_cpu(tlv_hdr->header.type)) { |
936 | case TLV_TYPE_WMMQSTATUS: | |
937 | tlv_wmm_qstatus = | |
938 | (struct mwifiex_ie_types_wmm_queue_status *) | |
939 | tlv_hdr; | |
acebe8c1 ZL |
940 | mwifiex_dbg(priv->adapter, CMD, |
941 | "info: CMD_RESP: WMM_GET_STATUS:\t" | |
942 | "QSTATUS TLV: %d, %d, %d\n", | |
943 | tlv_wmm_qstatus->queue_index, | |
944 | tlv_wmm_qstatus->flow_required, | |
945 | tlv_wmm_qstatus->disabled); | |
5e6e3a92 BZ |
946 | |
947 | ac_status = &priv->wmm.ac_status[tlv_wmm_qstatus-> | |
948 | queue_index]; | |
949 | ac_status->disabled = tlv_wmm_qstatus->disabled; | |
950 | ac_status->flow_required = | |
c65a30f3 | 951 | tlv_wmm_qstatus->flow_required; |
5e6e3a92 BZ |
952 | ac_status->flow_created = tlv_wmm_qstatus->flow_created; |
953 | break; | |
954 | ||
955 | case WLAN_EID_VENDOR_SPECIFIC: | |
956 | /* | |
957 | * Point the regular IEEE IE 2 bytes into the Marvell IE | |
958 | * and setup the IEEE IE type and length byte fields | |
959 | */ | |
960 | ||
961 | wmm_param_ie = | |
962 | (struct ieee_types_wmm_parameter *) (curr + | |
963 | 2); | |
964 | wmm_param_ie->vend_hdr.len = (u8) tlv_len; | |
965 | wmm_param_ie->vend_hdr.element_id = | |
966 | WLAN_EID_VENDOR_SPECIFIC; | |
967 | ||
acebe8c1 ZL |
968 | mwifiex_dbg(priv->adapter, CMD, |
969 | "info: CMD_RESP: WMM_GET_STATUS:\t" | |
970 | "WMM Parameter Set Count: %d\n", | |
971 | wmm_param_ie->qos_info_bitmap & mask); | |
5e6e3a92 | 972 | |
3a9b153c QX |
973 | if (wmm_param_ie->vend_hdr.len + 2 > |
974 | sizeof(struct ieee_types_wmm_parameter)) | |
975 | break; | |
976 | ||
5e6e3a92 BZ |
977 | memcpy((u8 *) &priv->curr_bss_params.bss_descriptor. |
978 | wmm_ie, wmm_param_ie, | |
979 | wmm_param_ie->vend_hdr.len + 2); | |
980 | ||
981 | break; | |
982 | ||
983 | default: | |
984 | valid = false; | |
985 | break; | |
986 | } | |
987 | ||
988 | curr += (tlv_len + sizeof(tlv_hdr->header)); | |
989 | resp_len -= (tlv_len + sizeof(tlv_hdr->header)); | |
990 | } | |
991 | ||
992 | mwifiex_wmm_setup_queue_priorities(priv, wmm_param_ie); | |
993 | mwifiex_wmm_setup_ac_downgrade(priv); | |
994 | ||
995 | return 0; | |
996 | } | |
997 | ||
998 | /* | |
999 | * Callback handler from the command module to allow insertion of a WMM TLV. | |
1000 | * | |
1001 | * If the BSS we are associating to supports WMM, this function adds the | |
1002 | * required WMM Information IE to the association request command buffer in | |
1003 | * the form of a Marvell extended IEEE IE. | |
1004 | */ | |
1005 | u32 | |
1006 | mwifiex_wmm_process_association_req(struct mwifiex_private *priv, | |
1007 | u8 **assoc_buf, | |
1008 | struct ieee_types_wmm_parameter *wmm_ie, | |
1009 | struct ieee80211_ht_cap *ht_cap) | |
1010 | { | |
1011 | struct mwifiex_ie_types_wmm_param_set *wmm_tlv; | |
1012 | u32 ret_len = 0; | |
1013 | ||
1014 | /* Null checks */ | |
1015 | if (!assoc_buf) | |
1016 | return 0; | |
1017 | if (!(*assoc_buf)) | |
1018 | return 0; | |
1019 | ||
1020 | if (!wmm_ie) | |
1021 | return 0; | |
1022 | ||
acebe8c1 ZL |
1023 | mwifiex_dbg(priv->adapter, INFO, |
1024 | "info: WMM: process assoc req: bss->wmm_ie=%#x\n", | |
1025 | wmm_ie->vend_hdr.element_id); | |
5e6e3a92 | 1026 | |
c65a30f3 YAP |
1027 | if ((priv->wmm_required || |
1028 | (ht_cap && (priv->adapter->config_bands & BAND_GN || | |
1029 | priv->adapter->config_bands & BAND_AN))) && | |
1030 | wmm_ie->vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC) { | |
5e6e3a92 BZ |
1031 | wmm_tlv = (struct mwifiex_ie_types_wmm_param_set *) *assoc_buf; |
1032 | wmm_tlv->header.type = cpu_to_le16((u16) wmm_info_ie[0]); | |
1033 | wmm_tlv->header.len = cpu_to_le16((u16) wmm_info_ie[1]); | |
1034 | memcpy(wmm_tlv->wmm_ie, &wmm_info_ie[2], | |
c65a30f3 | 1035 | le16_to_cpu(wmm_tlv->header.len)); |
5e6e3a92 BZ |
1036 | if (wmm_ie->qos_info_bitmap & IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) |
1037 | memcpy((u8 *) (wmm_tlv->wmm_ie | |
c65a30f3 YAP |
1038 | + le16_to_cpu(wmm_tlv->header.len) |
1039 | - sizeof(priv->wmm_qosinfo)), | |
1040 | &priv->wmm_qosinfo, sizeof(priv->wmm_qosinfo)); | |
5e6e3a92 BZ |
1041 | |
1042 | ret_len = sizeof(wmm_tlv->header) | |
c65a30f3 | 1043 | + le16_to_cpu(wmm_tlv->header.len); |
5e6e3a92 BZ |
1044 | |
1045 | *assoc_buf += ret_len; | |
1046 | } | |
1047 | ||
1048 | return ret_len; | |
1049 | } | |
1050 | ||
1051 | /* | |
1052 | * This function computes the time delay in the driver queues for a | |
1053 | * given packet. | |
1054 | * | |
1055 | * When the packet is received at the OS/Driver interface, the current | |
1056 | * time is set in the packet structure. The difference between the present | |
1057 | * time and that received time is computed in this function and limited | |
1058 | * based on pre-compiled limits in the driver. | |
1059 | */ | |
1060 | u8 | |
1061 | mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv, | |
c65a30f3 | 1062 | const struct sk_buff *skb) |
5e6e3a92 | 1063 | { |
c64800e7 | 1064 | u32 queue_delay = ktime_to_ms(net_timedelta(skb->tstamp)); |
270e58e8 | 1065 | u8 ret_val; |
5e6e3a92 BZ |
1066 | |
1067 | /* | |
1068 | * Queue delay is passed as a uint8 in units of 2ms (ms shifted | |
1069 | * by 1). Min value (other than 0) is therefore 2ms, max is 510ms. | |
1070 | * | |
1071 | * Pass max value if queue_delay is beyond the uint8 range | |
1072 | */ | |
1073 | ret_val = (u8) (min(queue_delay, priv->wmm.drv_pkt_delay_max) >> 1); | |
1074 | ||
acebe8c1 ZL |
1075 | mwifiex_dbg(priv->adapter, DATA, "data: WMM: Pkt Delay: %d ms,\t" |
1076 | "%d ms sent to FW\n", queue_delay, ret_val); | |
5e6e3a92 BZ |
1077 | |
1078 | return ret_val; | |
1079 | } | |
1080 | ||
1081 | /* | |
1082 | * This function retrieves the highest priority RA list table pointer. | |
1083 | */ | |
1084 | static struct mwifiex_ra_list_tbl * | |
1085 | mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, | |
1086 | struct mwifiex_private **priv, int *tid) | |
1087 | { | |
1088 | struct mwifiex_private *priv_tmp; | |
2e237319 | 1089 | struct mwifiex_ra_list_tbl *ptr; |
5e6e3a92 | 1090 | struct mwifiex_tid_tbl *tid_ptr; |
bb7de2ba | 1091 | atomic_t *hqp; |
5e6e3a92 BZ |
1092 | int i, j; |
1093 | ||
b006ed54 | 1094 | /* check the BSS with highest priority first */ |
5e6e3a92 | 1095 | for (j = adapter->priv_num - 1; j >= 0; --j) { |
b006ed54 AF |
1096 | /* iterate over BSS with the equal priority */ |
1097 | list_for_each_entry(adapter->bss_prio_tbl[j].bss_prio_cur, | |
1098 | &adapter->bss_prio_tbl[j].bss_prio_head, | |
1099 | list) { | |
16051b0e | 1100 | |
49abe5c8 | 1101 | try_again: |
b006ed54 | 1102 | priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv; |
5e6e3a92 | 1103 | |
dc386ce7 | 1104 | if (((priv_tmp->bss_mode != NL80211_IFTYPE_ADHOC) && |
1105 | !priv_tmp->port_open) || | |
5c894633 | 1106 | (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0)) |
b006ed54 | 1107 | continue; |
333f6b22 | 1108 | |
735ab6bf ZL |
1109 | if (adapter->if_ops.is_port_ready && |
1110 | !adapter->if_ops.is_port_ready(priv_tmp)) | |
1111 | continue; | |
1112 | ||
333f6b22 AF |
1113 | /* iterate over the WMM queues of the BSS */ |
1114 | hqp = &priv_tmp->wmm.highest_queued_prio; | |
49729ff6 | 1115 | for (i = atomic_read(hqp); i >= LOW_PRIO_TID; --i) { |
5e6e3a92 | 1116 | |
8a7f9fd8 | 1117 | spin_lock_bh(&priv_tmp->wmm.ra_list_spinlock); |
2716fd7d | 1118 | |
5e6e3a92 BZ |
1119 | tid_ptr = &(priv_tmp)->wmm. |
1120 | tid_tbl_ptr[tos_to_tid[i]]; | |
1121 | ||
2e237319 AF |
1122 | /* iterate over receiver addresses */ |
1123 | list_for_each_entry(ptr, &tid_ptr->ra_list, | |
1124 | list) { | |
5e6e3a92 | 1125 | |
b5b0f272 XH |
1126 | if (!ptr->tx_paused && |
1127 | !skb_queue_empty(&ptr->skb_head)) | |
2716fd7d | 1128 | /* holds both locks */ |
bb7de2ba | 1129 | goto found; |
2e237319 | 1130 | } |
bb7de2ba | 1131 | |
8a7f9fd8 | 1132 | spin_unlock_bh(&priv_tmp->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1133 | } |
1134 | ||
49abe5c8 XH |
1135 | if (atomic_read(&priv_tmp->wmm.tx_pkts_queued) != 0) { |
1136 | atomic_set(&priv_tmp->wmm.highest_queued_prio, | |
1137 | HIGH_PRIO_TID); | |
1138 | /* Iterate current private once more, since | |
1139 | * there still exist packets in data queue | |
1140 | */ | |
1141 | goto try_again; | |
1142 | } else | |
1143 | atomic_set(&priv_tmp->wmm.highest_queued_prio, | |
1144 | NO_PKT_PRIO_TID); | |
1145 | } | |
5e6e3a92 | 1146 | } |
2716fd7d | 1147 | |
5e6e3a92 | 1148 | return NULL; |
bb7de2ba YAP |
1149 | |
1150 | found: | |
690e792c | 1151 | /* holds ra_list_spinlock */ |
bb7de2ba YAP |
1152 | if (atomic_read(hqp) > i) |
1153 | atomic_set(hqp, i); | |
8a7f9fd8 | 1154 | spin_unlock_bh(&priv_tmp->wmm.ra_list_spinlock); |
bb7de2ba YAP |
1155 | |
1156 | *priv = priv_tmp; | |
1157 | *tid = tos_to_tid[i]; | |
1158 | ||
1159 | return ptr; | |
5e6e3a92 BZ |
1160 | } |
1161 | ||
b006ed54 | 1162 | /* This functions rotates ra and bss lists so packets are picked round robin. |
2e237319 AF |
1163 | * |
1164 | * After a packet is successfully transmitted, rotate the ra list, so the ra | |
1165 | * next to the one transmitted, will come first in the list. This way we pick | |
b006ed54 AF |
1166 | * the ra' in a round robin fashion. Same applies to bss nodes of equal |
1167 | * priority. | |
2e237319 AF |
1168 | * |
1169 | * Function also increments wmm.packets_out counter. | |
1170 | */ | |
1171 | void mwifiex_rotate_priolists(struct mwifiex_private *priv, | |
1172 | struct mwifiex_ra_list_tbl *ra, | |
1173 | int tid) | |
1174 | { | |
b006ed54 AF |
1175 | struct mwifiex_adapter *adapter = priv->adapter; |
1176 | struct mwifiex_bss_prio_tbl *tbl = adapter->bss_prio_tbl; | |
2e237319 | 1177 | struct mwifiex_tid_tbl *tid_ptr = &priv->wmm.tid_tbl_ptr[tid]; |
2e237319 | 1178 | |
8a7f9fd8 | 1179 | spin_lock_bh(&tbl[priv->bss_priority].bss_prio_lock); |
b006ed54 AF |
1180 | /* |
1181 | * dirty trick: we remove 'head' temporarily and reinsert it after | |
1182 | * curr bss node. imagine list to stay fixed while head is moved | |
1183 | */ | |
1184 | list_move(&tbl[priv->bss_priority].bss_prio_head, | |
1185 | &tbl[priv->bss_priority].bss_prio_cur->list); | |
8a7f9fd8 | 1186 | spin_unlock_bh(&tbl[priv->bss_priority].bss_prio_lock); |
b006ed54 | 1187 | |
8a7f9fd8 | 1188 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
2e237319 AF |
1189 | if (mwifiex_is_ralist_valid(priv, ra, tid)) { |
1190 | priv->wmm.packets_out[tid]++; | |
b006ed54 | 1191 | /* same as above */ |
2e237319 AF |
1192 | list_move(&tid_ptr->ra_list, &ra->list); |
1193 | } | |
8a7f9fd8 | 1194 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
2e237319 AF |
1195 | } |
1196 | ||
d85c5fe4 AK |
1197 | /* |
1198 | * This function checks if 11n aggregation is possible. | |
1199 | */ | |
1200 | static int | |
1201 | mwifiex_is_11n_aggragation_possible(struct mwifiex_private *priv, | |
1202 | struct mwifiex_ra_list_tbl *ptr, | |
1203 | int max_buf_size) | |
1204 | { | |
1205 | int count = 0, total_size = 0; | |
1206 | struct sk_buff *skb, *tmp; | |
5a009adf AP |
1207 | int max_amsdu_size; |
1208 | ||
1209 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP && priv->ap_11n_enabled && | |
1210 | ptr->is_11n_enabled) | |
1211 | max_amsdu_size = min_t(int, ptr->max_amsdu, max_buf_size); | |
1212 | else | |
1213 | max_amsdu_size = max_buf_size; | |
d85c5fe4 AK |
1214 | |
1215 | skb_queue_walk_safe(&ptr->skb_head, skb, tmp) { | |
1216 | total_size += skb->len; | |
5a009adf | 1217 | if (total_size >= max_amsdu_size) |
d85c5fe4 AK |
1218 | break; |
1219 | if (++count >= MIN_NUM_AMSDU) | |
1220 | return true; | |
1221 | } | |
1222 | ||
1223 | return false; | |
1224 | } | |
1225 | ||
5e6e3a92 BZ |
1226 | /* |
1227 | * This function sends a single packet to firmware for transmission. | |
1228 | */ | |
1229 | static void | |
1230 | mwifiex_send_single_packet(struct mwifiex_private *priv, | |
8a7f9fd8 | 1231 | struct mwifiex_ra_list_tbl *ptr, int ptr_index) |
5e6e3a92 BZ |
1232 | __releases(&priv->wmm.ra_list_spinlock) |
1233 | { | |
1234 | struct sk_buff *skb, *skb_next; | |
1235 | struct mwifiex_tx_param tx_param; | |
1236 | struct mwifiex_adapter *adapter = priv->adapter; | |
5e6e3a92 BZ |
1237 | struct mwifiex_txinfo *tx_info; |
1238 | ||
1239 | if (skb_queue_empty(&ptr->skb_head)) { | |
8a7f9fd8 | 1240 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
acebe8c1 | 1241 | mwifiex_dbg(adapter, DATA, "data: nothing to send\n"); |
5e6e3a92 BZ |
1242 | return; |
1243 | } | |
1244 | ||
1245 | skb = skb_dequeue(&ptr->skb_head); | |
1246 | ||
1247 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
acebe8c1 ZL |
1248 | mwifiex_dbg(adapter, DATA, |
1249 | "data: dequeuing the packet %p %p\n", ptr, skb); | |
5e6e3a92 | 1250 | |
c7d9ed9e | 1251 | ptr->total_pkt_count--; |
5e6e3a92 BZ |
1252 | |
1253 | if (!skb_queue_empty(&ptr->skb_head)) | |
1254 | skb_next = skb_peek(&ptr->skb_head); | |
1255 | else | |
1256 | skb_next = NULL; | |
1257 | ||
8a7f9fd8 | 1258 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1259 | |
1260 | tx_param.next_pkt_len = ((skb_next) ? skb_next->len + | |
1261 | sizeof(struct txpd) : 0); | |
1262 | ||
636c4598 | 1263 | if (mwifiex_process_tx(priv, skb, &tx_param) == -EBUSY) { |
5e6e3a92 | 1264 | /* Queue the packet back at the head */ |
8a7f9fd8 | 1265 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1266 | |
1267 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { | |
8a7f9fd8 | 1268 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
47411a06 | 1269 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
1270 | return; |
1271 | } | |
1272 | ||
1273 | skb_queue_tail(&ptr->skb_head, skb); | |
1274 | ||
c7d9ed9e | 1275 | ptr->total_pkt_count++; |
f0cb84f8 | 1276 | ptr->ba_pkt_count++; |
5e6e3a92 | 1277 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; |
8a7f9fd8 | 1278 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 | 1279 | } else { |
2e237319 | 1280 | mwifiex_rotate_priolists(priv, ptr, ptr_index); |
f699254c | 1281 | atomic_dec(&priv->wmm.tx_pkts_queued); |
5e6e3a92 BZ |
1282 | } |
1283 | } | |
1284 | ||
1285 | /* | |
1286 | * This function checks if the first packet in the given RA list | |
1287 | * is already processed or not. | |
1288 | */ | |
1289 | static int | |
1290 | mwifiex_is_ptr_processed(struct mwifiex_private *priv, | |
1291 | struct mwifiex_ra_list_tbl *ptr) | |
1292 | { | |
1293 | struct sk_buff *skb; | |
1294 | struct mwifiex_txinfo *tx_info; | |
1295 | ||
1296 | if (skb_queue_empty(&ptr->skb_head)) | |
1297 | return false; | |
1298 | ||
1299 | skb = skb_peek(&ptr->skb_head); | |
1300 | ||
1301 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1302 | if (tx_info->flags & MWIFIEX_BUF_FLAG_REQUEUED_PKT) | |
1303 | return true; | |
1304 | ||
1305 | return false; | |
1306 | } | |
1307 | ||
1308 | /* | |
1309 | * This function sends a single processed packet to firmware for | |
1310 | * transmission. | |
1311 | */ | |
1312 | static void | |
1313 | mwifiex_send_processed_packet(struct mwifiex_private *priv, | |
8a7f9fd8 | 1314 | struct mwifiex_ra_list_tbl *ptr, int ptr_index) |
5e6e3a92 BZ |
1315 | __releases(&priv->wmm.ra_list_spinlock) |
1316 | { | |
1317 | struct mwifiex_tx_param tx_param; | |
1318 | struct mwifiex_adapter *adapter = priv->adapter; | |
1319 | int ret = -1; | |
1320 | struct sk_buff *skb, *skb_next; | |
1321 | struct mwifiex_txinfo *tx_info; | |
1322 | ||
1323 | if (skb_queue_empty(&ptr->skb_head)) { | |
8a7f9fd8 | 1324 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1325 | return; |
1326 | } | |
1327 | ||
1328 | skb = skb_dequeue(&ptr->skb_head); | |
1329 | ||
e35000ea | 1330 | if (adapter->data_sent || adapter->tx_lock_flag) { |
77f486c8 | 1331 | ptr->total_pkt_count--; |
8a7f9fd8 | 1332 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
e35000ea | 1333 | skb_queue_tail(&adapter->tx_data_q, skb); |
77f486c8 | 1334 | atomic_dec(&priv->wmm.tx_pkts_queued); |
e35000ea ZL |
1335 | atomic_inc(&adapter->tx_queued); |
1336 | return; | |
1337 | } | |
1338 | ||
5e6e3a92 BZ |
1339 | if (!skb_queue_empty(&ptr->skb_head)) |
1340 | skb_next = skb_peek(&ptr->skb_head); | |
1341 | else | |
1342 | skb_next = NULL; | |
1343 | ||
1344 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1345 | ||
8a7f9fd8 | 1346 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
4daffe35 | 1347 | |
822446d4 XH |
1348 | tx_param.next_pkt_len = |
1349 | ((skb_next) ? skb_next->len + | |
1350 | sizeof(struct txpd) : 0); | |
4daffe35 | 1351 | if (adapter->iface_type == MWIFIEX_USB) { |
735ab6bf | 1352 | ret = adapter->if_ops.host_to_card(adapter, priv->usb_port, |
822446d4 | 1353 | skb, &tx_param); |
4daffe35 | 1354 | } else { |
4daffe35 AK |
1355 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_DATA, |
1356 | skb, &tx_param); | |
1357 | } | |
1358 | ||
5e6e3a92 BZ |
1359 | switch (ret) { |
1360 | case -EBUSY: | |
acebe8c1 | 1361 | mwifiex_dbg(adapter, ERROR, "data: -EBUSY is returned\n"); |
8a7f9fd8 | 1362 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1363 | |
1364 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { | |
8a7f9fd8 | 1365 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
47411a06 | 1366 | mwifiex_write_data_complete(adapter, skb, 0, -1); |
5e6e3a92 BZ |
1367 | return; |
1368 | } | |
1369 | ||
1370 | skb_queue_tail(&ptr->skb_head, skb); | |
1371 | ||
1372 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; | |
8a7f9fd8 | 1373 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1374 | break; |
1375 | case -1: | |
acebe8c1 | 1376 | mwifiex_dbg(adapter, ERROR, "host_to_card failed: %#x\n", ret); |
5e6e3a92 | 1377 | adapter->dbg.num_tx_host_to_card_failure++; |
47411a06 | 1378 | mwifiex_write_data_complete(adapter, skb, 0, ret); |
5e6e3a92 BZ |
1379 | break; |
1380 | case -EINPROGRESS: | |
7a1f4e61 AK |
1381 | break; |
1382 | case 0: | |
1383 | mwifiex_write_data_complete(adapter, skb, 0, ret); | |
5e6e3a92 BZ |
1384 | default: |
1385 | break; | |
1386 | } | |
1387 | if (ret != -EBUSY) { | |
2e237319 | 1388 | mwifiex_rotate_priolists(priv, ptr, ptr_index); |
f699254c | 1389 | atomic_dec(&priv->wmm.tx_pkts_queued); |
8a7f9fd8 | 1390 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
77f486c8 | 1391 | ptr->total_pkt_count--; |
8a7f9fd8 | 1392 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1393 | } |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * This function dequeues a packet from the highest priority list | |
1398 | * and transmits it. | |
1399 | */ | |
1400 | static int | |
1401 | mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) | |
1402 | { | |
1403 | struct mwifiex_ra_list_tbl *ptr; | |
1404 | struct mwifiex_private *priv = NULL; | |
1405 | int ptr_index = 0; | |
1406 | u8 ra[ETH_ALEN]; | |
1407 | int tid_del = 0, tid = 0; | |
5e6e3a92 BZ |
1408 | |
1409 | ptr = mwifiex_wmm_get_highest_priolist_ptr(adapter, &priv, &ptr_index); | |
1410 | if (!ptr) | |
1411 | return -1; | |
1412 | ||
572e8f3e | 1413 | tid = mwifiex_get_tid(ptr); |
5e6e3a92 | 1414 | |
acebe8c1 | 1415 | mwifiex_dbg(adapter, DATA, "data: tid=%d\n", tid); |
5e6e3a92 | 1416 | |
8a7f9fd8 | 1417 | spin_lock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 | 1418 | if (!mwifiex_is_ralist_valid(priv, ptr, ptr_index)) { |
8a7f9fd8 | 1419 | spin_unlock_bh(&priv->wmm.ra_list_spinlock); |
5e6e3a92 BZ |
1420 | return -1; |
1421 | } | |
1422 | ||
1423 | if (mwifiex_is_ptr_processed(priv, ptr)) { | |
8a7f9fd8 | 1424 | mwifiex_send_processed_packet(priv, ptr, ptr_index); |
5e6e3a92 BZ |
1425 | /* ra_list_spinlock has been freed in |
1426 | mwifiex_send_processed_packet() */ | |
1427 | return 0; | |
1428 | } | |
1429 | ||
c65a30f3 | 1430 | if (!ptr->is_11n_enabled || |
39df5e82 ZL |
1431 | ptr->ba_status || |
1432 | priv->wps.session_enable) { | |
4c9f9fb2 | 1433 | if (ptr->is_11n_enabled && |
39df5e82 ZL |
1434 | ptr->ba_status && |
1435 | ptr->amsdu_in_ampdu && | |
1436 | mwifiex_is_amsdu_allowed(priv, tid) && | |
1437 | mwifiex_is_11n_aggragation_possible(priv, ptr, | |
4c9f9fb2 | 1438 | adapter->tx_buf_size)) |
8a7f9fd8 | 1439 | mwifiex_11n_aggregate_pkt(priv, ptr, ptr_index); |
4c9f9fb2 AK |
1440 | /* ra_list_spinlock has been freed in |
1441 | * mwifiex_11n_aggregate_pkt() | |
1442 | */ | |
1443 | else | |
8a7f9fd8 | 1444 | mwifiex_send_single_packet(priv, ptr, ptr_index); |
4c9f9fb2 AK |
1445 | /* ra_list_spinlock has been freed in |
1446 | * mwifiex_send_single_packet() | |
1447 | */ | |
5e6e3a92 | 1448 | } else { |
eac43227 | 1449 | if (mwifiex_is_ampdu_allowed(priv, ptr, tid) && |
f0cb84f8 | 1450 | ptr->ba_pkt_count > ptr->ba_packet_thr) { |
53d7938e | 1451 | if (mwifiex_space_avail_for_new_ba_stream(adapter)) { |
3e822635 YAP |
1452 | mwifiex_create_ba_tbl(priv, ptr->ra, tid, |
1453 | BA_SETUP_INPROGRESS); | |
5e6e3a92 BZ |
1454 | mwifiex_send_addba(priv, tid, ptr->ra); |
1455 | } else if (mwifiex_find_stream_to_delete | |
572e8f3e | 1456 | (priv, tid, &tid_del, ra)) { |
3e822635 YAP |
1457 | mwifiex_create_ba_tbl(priv, ptr->ra, tid, |
1458 | BA_SETUP_INPROGRESS); | |
5e6e3a92 BZ |
1459 | mwifiex_send_delba(priv, tid_del, ra, 1); |
1460 | } | |
1461 | } | |
4c9f9fb2 | 1462 | if (mwifiex_is_amsdu_allowed(priv, tid) && |
d85c5fe4 AK |
1463 | mwifiex_is_11n_aggragation_possible(priv, ptr, |
1464 | adapter->tx_buf_size)) | |
8a7f9fd8 | 1465 | mwifiex_11n_aggregate_pkt(priv, ptr, ptr_index); |
5e6e3a92 BZ |
1466 | /* ra_list_spinlock has been freed in |
1467 | mwifiex_11n_aggregate_pkt() */ | |
1468 | else | |
8a7f9fd8 | 1469 | mwifiex_send_single_packet(priv, ptr, ptr_index); |
5e6e3a92 BZ |
1470 | /* ra_list_spinlock has been freed in |
1471 | mwifiex_send_single_packet() */ | |
1472 | } | |
1473 | return 0; | |
1474 | } | |
1475 | ||
a1777327 AP |
1476 | void mwifiex_process_bypass_tx(struct mwifiex_adapter *adapter) |
1477 | { | |
1478 | struct mwifiex_tx_param tx_param; | |
1479 | struct sk_buff *skb; | |
1480 | struct mwifiex_txinfo *tx_info; | |
1481 | struct mwifiex_private *priv; | |
1482 | int i; | |
1483 | ||
1484 | if (adapter->data_sent || adapter->tx_lock_flag) | |
1485 | return; | |
1486 | ||
1487 | for (i = 0; i < adapter->priv_num; ++i) { | |
1488 | priv = adapter->priv[i]; | |
1489 | ||
735ab6bf ZL |
1490 | if (!priv) |
1491 | continue; | |
1492 | ||
1493 | if (adapter->if_ops.is_port_ready && | |
1494 | !adapter->if_ops.is_port_ready(priv)) | |
1495 | continue; | |
1496 | ||
a1777327 AP |
1497 | if (skb_queue_empty(&priv->bypass_txq)) |
1498 | continue; | |
1499 | ||
1500 | skb = skb_dequeue(&priv->bypass_txq); | |
1501 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
1502 | ||
1503 | /* no aggregation for bypass packets */ | |
1504 | tx_param.next_pkt_len = 0; | |
1505 | ||
1506 | if (mwifiex_process_tx(priv, skb, &tx_param) == -EBUSY) { | |
1507 | skb_queue_head(&priv->bypass_txq, skb); | |
1508 | tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; | |
1509 | } else { | |
1510 | atomic_dec(&adapter->bypass_tx_pending); | |
1511 | } | |
1512 | } | |
1513 | } | |
1514 | ||
5e6e3a92 BZ |
1515 | /* |
1516 | * This function transmits the highest priority packet awaiting in the | |
1517 | * WMM Queues. | |
1518 | */ | |
1519 | void | |
1520 | mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter) | |
1521 | { | |
1522 | do { | |
5e6e3a92 BZ |
1523 | if (mwifiex_dequeue_tx_packet(adapter)) |
1524 | break; | |
e35000ea ZL |
1525 | if (adapter->iface_type != MWIFIEX_SDIO) { |
1526 | if (adapter->data_sent || | |
1527 | adapter->tx_lock_flag) | |
1528 | break; | |
1529 | } else { | |
1530 | if (atomic_read(&adapter->tx_queued) >= | |
1531 | MWIFIEX_MAX_PKTS_TXQ) | |
1532 | break; | |
1533 | } | |
93968147 | 1534 | } while (!mwifiex_wmm_lists_empty(adapter)); |
5e6e3a92 | 1535 | } |