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Commit | Line | Data |
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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: 802.11n RX Re-ordering | |
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 | #include "11n_rxreorder.h" | |
28 | ||
4c9f9fb2 AK |
29 | /* This function will dispatch amsdu packet and forward it to kernel/upper |
30 | * layer. | |
31 | */ | |
32 | static int mwifiex_11n_dispatch_amsdu_pkt(struct mwifiex_private *priv, | |
33 | struct sk_buff *skb) | |
34 | { | |
35 | struct rxpd *local_rx_pd = (struct rxpd *)(skb->data); | |
36 | int ret; | |
37 | ||
38 | if (le16_to_cpu(local_rx_pd->rx_pkt_type) == PKT_TYPE_AMSDU) { | |
39 | struct sk_buff_head list; | |
40 | struct sk_buff *rx_skb; | |
41 | ||
42 | __skb_queue_head_init(&list); | |
43 | ||
44 | skb_pull(skb, le16_to_cpu(local_rx_pd->rx_pkt_offset)); | |
45 | skb_trim(skb, le16_to_cpu(local_rx_pd->rx_pkt_length)); | |
46 | ||
47 | ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr, | |
7f6990c8 | 48 | priv->wdev.iftype, 0); |
4c9f9fb2 AK |
49 | |
50 | while (!skb_queue_empty(&list)) { | |
776f7420 AK |
51 | struct rx_packet_hdr *rx_hdr; |
52 | ||
4c9f9fb2 | 53 | rx_skb = __skb_dequeue(&list); |
776f7420 AK |
54 | rx_hdr = (struct rx_packet_hdr *)rx_skb->data; |
55 | if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && | |
56 | ntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) { | |
57 | mwifiex_process_tdls_action_frame(priv, | |
58 | (u8 *)rx_hdr, | |
59 | skb->len); | |
60 | } | |
61 | ||
bf00dc22 XH |
62 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) |
63 | ret = mwifiex_uap_recv_packet(priv, rx_skb); | |
64 | else | |
65 | ret = mwifiex_recv_packet(priv, rx_skb); | |
4c9f9fb2 | 66 | if (ret == -1) |
acebe8c1 ZL |
67 | mwifiex_dbg(priv->adapter, ERROR, |
68 | "Rx of A-MSDU failed"); | |
4c9f9fb2 AK |
69 | } |
70 | return 0; | |
71 | } | |
72 | ||
73 | return -1; | |
74 | } | |
75 | ||
5e6e43eb AK |
76 | /* This function will process the rx packet and forward it to kernel/upper |
77 | * layer. | |
78 | */ | |
79 | static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv, void *payload) | |
80 | { | |
4c9f9fb2 | 81 | |
99ffe72c XH |
82 | int ret; |
83 | ||
84 | if (!payload) { | |
85 | mwifiex_dbg(priv->adapter, INFO, "info: fw drop data\n"); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | ret = mwifiex_11n_dispatch_amsdu_pkt(priv, payload); | |
4c9f9fb2 AK |
90 | if (!ret) |
91 | return 0; | |
92 | ||
5e6e43eb AK |
93 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) |
94 | return mwifiex_handle_uap_rx_forward(priv, payload); | |
95 | ||
96 | return mwifiex_process_rx_packet(priv, payload); | |
97 | } | |
98 | ||
5e6e3a92 | 99 | /* |
8c00228e YAP |
100 | * This function dispatches all packets in the Rx reorder table until the |
101 | * start window. | |
5e6e3a92 BZ |
102 | * |
103 | * There could be holes in the buffer, which are skipped by the function. | |
104 | * Since the buffer is linear, the function uses rotation to simulate | |
105 | * circular buffer. | |
106 | */ | |
ab581472 | 107 | static void |
5e6e43eb AK |
108 | mwifiex_11n_dispatch_pkt_until_start_win(struct mwifiex_private *priv, |
109 | struct mwifiex_rx_reorder_tbl *tbl, | |
110 | int start_win) | |
5e6e3a92 | 111 | { |
8c00228e | 112 | int pkt_to_send, i; |
270e58e8 | 113 | void *rx_tmp_ptr; |
5e6e3a92 BZ |
114 | unsigned long flags; |
115 | ||
8c00228e YAP |
116 | pkt_to_send = (start_win > tbl->start_win) ? |
117 | min((start_win - tbl->start_win), tbl->win_size) : | |
118 | tbl->win_size; | |
5e6e3a92 | 119 | |
8c00228e | 120 | for (i = 0; i < pkt_to_send; ++i) { |
5e6e3a92 BZ |
121 | spin_lock_irqsave(&priv->rx_pkt_lock, flags); |
122 | rx_tmp_ptr = NULL; | |
8c00228e YAP |
123 | if (tbl->rx_reorder_ptr[i]) { |
124 | rx_tmp_ptr = tbl->rx_reorder_ptr[i]; | |
125 | tbl->rx_reorder_ptr[i] = NULL; | |
5e6e3a92 BZ |
126 | } |
127 | spin_unlock_irqrestore(&priv->rx_pkt_lock, flags); | |
5e6e43eb AK |
128 | if (rx_tmp_ptr) |
129 | mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr); | |
5e6e3a92 BZ |
130 | } |
131 | ||
132 | spin_lock_irqsave(&priv->rx_pkt_lock, flags); | |
133 | /* | |
134 | * We don't have a circular buffer, hence use rotation to simulate | |
135 | * circular buffer | |
136 | */ | |
8c00228e YAP |
137 | for (i = 0; i < tbl->win_size - pkt_to_send; ++i) { |
138 | tbl->rx_reorder_ptr[i] = tbl->rx_reorder_ptr[pkt_to_send + i]; | |
139 | tbl->rx_reorder_ptr[pkt_to_send + i] = NULL; | |
5e6e3a92 BZ |
140 | } |
141 | ||
8c00228e | 142 | tbl->start_win = start_win; |
5e6e3a92 | 143 | spin_unlock_irqrestore(&priv->rx_pkt_lock, flags); |
5e6e3a92 BZ |
144 | } |
145 | ||
146 | /* | |
147 | * This function dispatches all packets in the Rx reorder table until | |
148 | * a hole is found. | |
149 | * | |
150 | * The start window is adjusted automatically when a hole is located. | |
151 | * Since the buffer is linear, the function uses rotation to simulate | |
152 | * circular buffer. | |
153 | */ | |
ab581472 | 154 | static void |
5e6e3a92 | 155 | mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv, |
8c00228e | 156 | struct mwifiex_rx_reorder_tbl *tbl) |
5e6e3a92 BZ |
157 | { |
158 | int i, j, xchg; | |
270e58e8 | 159 | void *rx_tmp_ptr; |
5e6e3a92 BZ |
160 | unsigned long flags; |
161 | ||
8c00228e | 162 | for (i = 0; i < tbl->win_size; ++i) { |
5e6e3a92 | 163 | spin_lock_irqsave(&priv->rx_pkt_lock, flags); |
8c00228e | 164 | if (!tbl->rx_reorder_ptr[i]) { |
5e6e3a92 BZ |
165 | spin_unlock_irqrestore(&priv->rx_pkt_lock, flags); |
166 | break; | |
167 | } | |
8c00228e YAP |
168 | rx_tmp_ptr = tbl->rx_reorder_ptr[i]; |
169 | tbl->rx_reorder_ptr[i] = NULL; | |
5e6e3a92 | 170 | spin_unlock_irqrestore(&priv->rx_pkt_lock, flags); |
5e6e43eb | 171 | mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr); |
5e6e3a92 BZ |
172 | } |
173 | ||
174 | spin_lock_irqsave(&priv->rx_pkt_lock, flags); | |
175 | /* | |
176 | * We don't have a circular buffer, hence use rotation to simulate | |
177 | * circular buffer | |
178 | */ | |
179 | if (i > 0) { | |
8c00228e | 180 | xchg = tbl->win_size - i; |
5e6e3a92 | 181 | for (j = 0; j < xchg; ++j) { |
8c00228e YAP |
182 | tbl->rx_reorder_ptr[j] = tbl->rx_reorder_ptr[i + j]; |
183 | tbl->rx_reorder_ptr[i + j] = NULL; | |
5e6e3a92 BZ |
184 | } |
185 | } | |
8c00228e | 186 | tbl->start_win = (tbl->start_win + i) & (MAX_TID_VALUE - 1); |
5e6e3a92 | 187 | spin_unlock_irqrestore(&priv->rx_pkt_lock, flags); |
5e6e3a92 BZ |
188 | } |
189 | ||
190 | /* | |
191 | * This function deletes the Rx reorder table and frees the memory. | |
192 | * | |
193 | * The function stops the associated timer and dispatches all the | |
194 | * pending packets in the Rx reorder table before deletion. | |
195 | */ | |
196 | static void | |
8c00228e YAP |
197 | mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv, |
198 | struct mwifiex_rx_reorder_tbl *tbl) | |
5e6e3a92 BZ |
199 | { |
200 | unsigned long flags; | |
63410c37 | 201 | int start_win; |
5e6e3a92 | 202 | |
8c00228e | 203 | if (!tbl) |
5e6e3a92 BZ |
204 | return; |
205 | ||
6e251174 AP |
206 | spin_lock_irqsave(&priv->adapter->rx_proc_lock, flags); |
207 | priv->adapter->rx_locked = true; | |
208 | if (priv->adapter->rx_processing) { | |
209 | spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags); | |
210 | flush_workqueue(priv->adapter->rx_workqueue); | |
211 | } else { | |
212 | spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags); | |
213 | } | |
214 | ||
63410c37 | 215 | start_win = (tbl->start_win + tbl->win_size) & (MAX_TID_VALUE - 1); |
5e6e43eb | 216 | mwifiex_11n_dispatch_pkt_until_start_win(priv, tbl, start_win); |
5e6e3a92 | 217 | |
629873f2 | 218 | del_timer_sync(&tbl->timer_context.timer); |
3a8fede1 | 219 | tbl->timer_context.timer_is_set = false; |
5e6e3a92 BZ |
220 | |
221 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
8c00228e | 222 | list_del(&tbl->list); |
5e6e3a92 BZ |
223 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); |
224 | ||
8c00228e YAP |
225 | kfree(tbl->rx_reorder_ptr); |
226 | kfree(tbl); | |
6e251174 AP |
227 | |
228 | spin_lock_irqsave(&priv->adapter->rx_proc_lock, flags); | |
229 | priv->adapter->rx_locked = false; | |
230 | spin_unlock_irqrestore(&priv->adapter->rx_proc_lock, flags); | |
231 | ||
5e6e3a92 BZ |
232 | } |
233 | ||
234 | /* | |
235 | * This function returns the pointer to an entry in Rx reordering | |
236 | * table which matches the given TA/TID pair. | |
237 | */ | |
d1cf3b95 | 238 | struct mwifiex_rx_reorder_tbl * |
5e6e3a92 BZ |
239 | mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta) |
240 | { | |
8c00228e | 241 | struct mwifiex_rx_reorder_tbl *tbl; |
5e6e3a92 BZ |
242 | unsigned long flags; |
243 | ||
244 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
8c00228e YAP |
245 | list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list) { |
246 | if (!memcmp(tbl->ta, ta, ETH_ALEN) && tbl->tid == tid) { | |
5e6e3a92 BZ |
247 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, |
248 | flags); | |
8c00228e | 249 | return tbl; |
5e6e3a92 BZ |
250 | } |
251 | } | |
252 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
253 | ||
254 | return NULL; | |
255 | } | |
256 | ||
3e238a11 AP |
257 | /* This function retrieves the pointer to an entry in Rx reordering |
258 | * table which matches the given TA and deletes it. | |
259 | */ | |
260 | void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta) | |
261 | { | |
262 | struct mwifiex_rx_reorder_tbl *tbl, *tmp; | |
263 | unsigned long flags; | |
264 | ||
265 | if (!ta) | |
266 | return; | |
267 | ||
268 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
269 | list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) { | |
270 | if (!memcmp(tbl->ta, ta, ETH_ALEN)) { | |
271 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, | |
272 | flags); | |
273 | mwifiex_del_rx_reorder_entry(priv, tbl); | |
274 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
275 | } | |
276 | } | |
277 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
278 | ||
279 | return; | |
280 | } | |
281 | ||
5e6e3a92 BZ |
282 | /* |
283 | * This function finds the last sequence number used in the packets | |
284 | * buffered in Rx reordering table. | |
285 | */ | |
286 | static int | |
2d702830 | 287 | mwifiex_11n_find_last_seq_num(struct reorder_tmr_cnxt *ctx) |
5e6e3a92 | 288 | { |
2d702830 AK |
289 | struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr = ctx->ptr; |
290 | struct mwifiex_private *priv = ctx->priv; | |
291 | unsigned long flags; | |
5e6e3a92 BZ |
292 | int i; |
293 | ||
2d702830 AK |
294 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); |
295 | for (i = rx_reorder_tbl_ptr->win_size - 1; i >= 0; --i) { | |
296 | if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) { | |
297 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, | |
298 | flags); | |
5e6e3a92 | 299 | return i; |
2d702830 AK |
300 | } |
301 | } | |
302 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
5e6e3a92 BZ |
303 | |
304 | return -1; | |
305 | } | |
306 | ||
307 | /* | |
308 | * This function flushes all the packets in Rx reordering table. | |
309 | * | |
310 | * The function checks if any packets are currently buffered in the | |
311 | * table or not. In case there are packets available, it dispatches | |
312 | * them and then dumps the Rx reordering table. | |
313 | */ | |
314 | static void | |
315 | mwifiex_flush_data(unsigned long context) | |
316 | { | |
8c00228e | 317 | struct reorder_tmr_cnxt *ctx = |
5e6e3a92 | 318 | (struct reorder_tmr_cnxt *) context; |
63410c37 | 319 | int start_win, seq_num; |
5e6e3a92 | 320 | |
3a8fede1 | 321 | ctx->timer_is_set = false; |
2d702830 | 322 | seq_num = mwifiex_11n_find_last_seq_num(ctx); |
bb7de2ba | 323 | |
63410c37 | 324 | if (seq_num < 0) |
bb7de2ba YAP |
325 | return; |
326 | ||
acebe8c1 | 327 | mwifiex_dbg(ctx->priv->adapter, INFO, "info: flush data %d\n", seq_num); |
63410c37 | 328 | start_win = (ctx->ptr->start_win + seq_num + 1) & (MAX_TID_VALUE - 1); |
5e6e43eb AK |
329 | mwifiex_11n_dispatch_pkt_until_start_win(ctx->priv, ctx->ptr, |
330 | start_win); | |
5e6e3a92 BZ |
331 | } |
332 | ||
333 | /* | |
334 | * This function creates an entry in Rx reordering table for the | |
335 | * given TA/TID. | |
336 | * | |
337 | * The function also initializes the entry with sequence number, window | |
338 | * size as well as initializes the timer. | |
339 | * | |
340 | * If the received TA/TID pair is already present, all the packets are | |
341 | * dispatched and the window size is moved until the SSN. | |
342 | */ | |
343 | static void | |
344 | mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta, | |
84266841 | 345 | int tid, int win_size, int seq_num) |
5e6e3a92 BZ |
346 | { |
347 | int i; | |
8c00228e | 348 | struct mwifiex_rx_reorder_tbl *tbl, *new_node; |
5e6e3a92 BZ |
349 | u16 last_seq = 0; |
350 | unsigned long flags; | |
5a009adf | 351 | struct mwifiex_sta_node *node; |
5e6e3a92 BZ |
352 | |
353 | /* | |
354 | * If we get a TID, ta pair which is already present dispatch all the | |
355 | * the packets and move the window size until the ssn | |
356 | */ | |
8c00228e YAP |
357 | tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta); |
358 | if (tbl) { | |
5e6e43eb | 359 | mwifiex_11n_dispatch_pkt_until_start_win(priv, tbl, seq_num); |
5e6e3a92 BZ |
360 | return; |
361 | } | |
8c00228e | 362 | /* if !tbl then create one */ |
5e6e3a92 | 363 | new_node = kzalloc(sizeof(struct mwifiex_rx_reorder_tbl), GFP_KERNEL); |
0d2e7a5c | 364 | if (!new_node) |
5e6e3a92 | 365 | return; |
5e6e3a92 BZ |
366 | |
367 | INIT_LIST_HEAD(&new_node->list); | |
368 | new_node->tid = tid; | |
369 | memcpy(new_node->ta, ta, ETH_ALEN); | |
370 | new_node->start_win = seq_num; | |
8acbea61 PS |
371 | new_node->init_win = seq_num; |
372 | new_node->flags = 0; | |
5a009adf | 373 | |
c11fb985 | 374 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); |
5a009adf | 375 | if (mwifiex_queuing_ra_based(priv)) { |
5a009adf AP |
376 | if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) { |
377 | node = mwifiex_get_sta_entry(priv, ta); | |
378 | if (node) | |
379 | last_seq = node->rx_seq[tid]; | |
380 | } | |
381 | } else { | |
daeb5bb4 AP |
382 | node = mwifiex_get_sta_entry(priv, ta); |
383 | if (node) | |
384 | last_seq = node->rx_seq[tid]; | |
385 | else | |
386 | last_seq = priv->rx_seq[tid]; | |
5a009adf | 387 | } |
c11fb985 | 388 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); |
5e6e3a92 | 389 | |
acebe8c1 ZL |
390 | mwifiex_dbg(priv->adapter, INFO, |
391 | "info: last_seq=%d start_win=%d\n", | |
392 | last_seq, new_node->start_win); | |
09bd1976 | 393 | |
92583924 | 394 | if (last_seq != MWIFIEX_DEF_11N_RX_SEQ_NUM && |
8acbea61 | 395 | last_seq >= new_node->start_win) { |
5e6e3a92 | 396 | new_node->start_win = last_seq + 1; |
8acbea61 PS |
397 | new_node->flags |= RXREOR_INIT_WINDOW_SHIFT; |
398 | } | |
5e6e3a92 BZ |
399 | |
400 | new_node->win_size = win_size; | |
401 | ||
402 | new_node->rx_reorder_ptr = kzalloc(sizeof(void *) * win_size, | |
403 | GFP_KERNEL); | |
404 | if (!new_node->rx_reorder_ptr) { | |
405 | kfree((u8 *) new_node); | |
acebe8c1 ZL |
406 | mwifiex_dbg(priv->adapter, ERROR, |
407 | "%s: failed to alloc reorder_ptr\n", __func__); | |
5e6e3a92 BZ |
408 | return; |
409 | } | |
410 | ||
411 | new_node->timer_context.ptr = new_node; | |
412 | new_node->timer_context.priv = priv; | |
3a8fede1 | 413 | new_node->timer_context.timer_is_set = false; |
5e6e3a92 | 414 | |
e4a1c3f8 JL |
415 | setup_timer(&new_node->timer_context.timer, mwifiex_flush_data, |
416 | (unsigned long)&new_node->timer_context); | |
5e6e3a92 BZ |
417 | |
418 | for (i = 0; i < win_size; ++i) | |
419 | new_node->rx_reorder_ptr[i] = NULL; | |
420 | ||
421 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
422 | list_add_tail(&new_node->list, &priv->rx_reorder_tbl_ptr); | |
423 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
5e6e3a92 BZ |
424 | } |
425 | ||
3a8fede1 MY |
426 | static void |
427 | mwifiex_11n_rxreorder_timer_restart(struct mwifiex_rx_reorder_tbl *tbl) | |
428 | { | |
429 | u32 min_flush_time; | |
430 | ||
431 | if (tbl->win_size >= MWIFIEX_BA_WIN_SIZE_32) | |
432 | min_flush_time = MIN_FLUSH_TIMER_15_MS; | |
433 | else | |
434 | min_flush_time = MIN_FLUSH_TIMER_MS; | |
435 | ||
436 | mod_timer(&tbl->timer_context.timer, | |
437 | jiffies + msecs_to_jiffies(min_flush_time * tbl->win_size)); | |
438 | ||
439 | tbl->timer_context.timer_is_set = true; | |
440 | } | |
441 | ||
5e6e3a92 BZ |
442 | /* |
443 | * This function prepares command for adding a BA request. | |
444 | * | |
445 | * Preparation includes - | |
446 | * - Setting command ID and proper size | |
447 | * - Setting add BA request buffer | |
448 | * - Ensuring correct endian-ness | |
449 | */ | |
572e8f3e | 450 | int mwifiex_cmd_11n_addba_req(struct host_cmd_ds_command *cmd, void *data_buf) |
5e6e3a92 | 451 | { |
2c208890 | 452 | struct host_cmd_ds_11n_addba_req *add_ba_req = &cmd->params.add_ba_req; |
5e6e3a92 BZ |
453 | |
454 | cmd->command = cpu_to_le16(HostCmd_CMD_11N_ADDBA_REQ); | |
455 | cmd->size = cpu_to_le16(sizeof(*add_ba_req) + S_DS_GEN); | |
456 | memcpy(add_ba_req, data_buf, sizeof(*add_ba_req)); | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | /* | |
462 | * This function prepares command for adding a BA response. | |
463 | * | |
464 | * Preparation includes - | |
465 | * - Setting command ID and proper size | |
466 | * - Setting add BA response buffer | |
467 | * - Ensuring correct endian-ness | |
468 | */ | |
469 | int mwifiex_cmd_11n_addba_rsp_gen(struct mwifiex_private *priv, | |
470 | struct host_cmd_ds_command *cmd, | |
a5ffddb7 AK |
471 | struct host_cmd_ds_11n_addba_req |
472 | *cmd_addba_req) | |
5e6e3a92 | 473 | { |
2c208890 | 474 | struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = &cmd->params.add_ba_rsp; |
b06c5321 AP |
475 | struct mwifiex_sta_node *sta_ptr; |
476 | u32 rx_win_size = priv->add_ba_param.rx_win_size; | |
270e58e8 YAP |
477 | u8 tid; |
478 | int win_size; | |
c11fb985 | 479 | unsigned long flags; |
5e6e3a92 BZ |
480 | uint16_t block_ack_param_set; |
481 | ||
b06c5321 AP |
482 | if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && |
483 | ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && | |
484 | priv->adapter->is_hw_11ac_capable && | |
485 | memcmp(priv->cfg_bssid, cmd_addba_req->peer_mac_addr, ETH_ALEN)) { | |
c11fb985 | 486 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); |
b06c5321 AP |
487 | sta_ptr = mwifiex_get_sta_entry(priv, |
488 | cmd_addba_req->peer_mac_addr); | |
489 | if (!sta_ptr) { | |
09bd1976 | 490 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); |
acebe8c1 ZL |
491 | mwifiex_dbg(priv->adapter, ERROR, |
492 | "BA setup with unknown TDLS peer %pM!\n", | |
493 | cmd_addba_req->peer_mac_addr); | |
b06c5321 AP |
494 | return -1; |
495 | } | |
496 | if (sta_ptr->is_11ac_enabled) | |
497 | rx_win_size = MWIFIEX_11AC_STA_AMPDU_DEF_RXWINSIZE; | |
c11fb985 | 498 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); |
b06c5321 AP |
499 | } |
500 | ||
5e6e3a92 BZ |
501 | cmd->command = cpu_to_le16(HostCmd_CMD_11N_ADDBA_RSP); |
502 | cmd->size = cpu_to_le16(sizeof(*add_ba_rsp) + S_DS_GEN); | |
503 | ||
504 | memcpy(add_ba_rsp->peer_mac_addr, cmd_addba_req->peer_mac_addr, | |
505 | ETH_ALEN); | |
506 | add_ba_rsp->dialog_token = cmd_addba_req->dialog_token; | |
507 | add_ba_rsp->block_ack_tmo = cmd_addba_req->block_ack_tmo; | |
508 | add_ba_rsp->ssn = cmd_addba_req->ssn; | |
509 | ||
510 | block_ack_param_set = le16_to_cpu(cmd_addba_req->block_ack_param_set); | |
511 | tid = (block_ack_param_set & IEEE80211_ADDBA_PARAM_TID_MASK) | |
512 | >> BLOCKACKPARAM_TID_POS; | |
513 | add_ba_rsp->status_code = cpu_to_le16(ADDBA_RSP_STATUS_ACCEPT); | |
514 | block_ack_param_set &= ~IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK; | |
4c9f9fb2 AK |
515 | |
516 | /* If we don't support AMSDU inside AMPDU, reset the bit */ | |
517 | if (!priv->add_ba_param.rx_amsdu || | |
518 | (priv->aggr_prio_tbl[tid].amsdu == BA_STREAM_NOT_ALLOWED)) | |
519 | block_ack_param_set &= ~BLOCKACKPARAM_AMSDU_SUPP_MASK; | |
b06c5321 | 520 | block_ack_param_set |= rx_win_size << BLOCKACKPARAM_WINSIZE_POS; |
5e6e3a92 BZ |
521 | add_ba_rsp->block_ack_param_set = cpu_to_le16(block_ack_param_set); |
522 | win_size = (le16_to_cpu(add_ba_rsp->block_ack_param_set) | |
523 | & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) | |
524 | >> BLOCKACKPARAM_WINSIZE_POS; | |
525 | cmd_addba_req->block_ack_param_set = cpu_to_le16(block_ack_param_set); | |
526 | ||
527 | mwifiex_11n_create_rx_reorder_tbl(priv, cmd_addba_req->peer_mac_addr, | |
84266841 YAP |
528 | tid, win_size, |
529 | le16_to_cpu(cmd_addba_req->ssn)); | |
5e6e3a92 BZ |
530 | return 0; |
531 | } | |
532 | ||
533 | /* | |
534 | * This function prepares command for deleting a BA request. | |
535 | * | |
536 | * Preparation includes - | |
537 | * - Setting command ID and proper size | |
538 | * - Setting del BA request buffer | |
539 | * - Ensuring correct endian-ness | |
540 | */ | |
572e8f3e | 541 | int mwifiex_cmd_11n_delba(struct host_cmd_ds_command *cmd, void *data_buf) |
5e6e3a92 | 542 | { |
2c208890 | 543 | struct host_cmd_ds_11n_delba *del_ba = &cmd->params.del_ba; |
5e6e3a92 BZ |
544 | |
545 | cmd->command = cpu_to_le16(HostCmd_CMD_11N_DELBA); | |
546 | cmd->size = cpu_to_le16(sizeof(*del_ba) + S_DS_GEN); | |
547 | memcpy(del_ba, data_buf, sizeof(*del_ba)); | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | /* | |
553 | * This function identifies if Rx reordering is needed for a received packet. | |
554 | * | |
555 | * In case reordering is required, the function will do the reordering | |
556 | * before sending it to kernel. | |
557 | * | |
558 | * The Rx reorder table is checked first with the received TID/TA pair. If | |
559 | * not found, the received packet is dispatched immediately. But if found, | |
560 | * the packet is reordered and all the packets in the updated Rx reordering | |
561 | * table is dispatched until a hole is found. | |
562 | * | |
563 | * For sequence number less than the starting window, the packet is dropped. | |
564 | */ | |
565 | int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv, | |
566 | u16 seq_num, u16 tid, | |
567 | u8 *ta, u8 pkt_type, void *payload) | |
568 | { | |
8c00228e | 569 | struct mwifiex_rx_reorder_tbl *tbl; |
3a8fede1 | 570 | int prev_start_win, start_win, end_win, win_size; |
270e58e8 | 571 | u16 pkt_index; |
8acbea61 | 572 | bool init_window_shift = false; |
3a8fede1 | 573 | int ret = 0; |
5e6e3a92 | 574 | |
2c208890 | 575 | tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta); |
8c00228e | 576 | if (!tbl) { |
5e6e43eb AK |
577 | if (pkt_type != PKT_TYPE_BAR) |
578 | mwifiex_11n_dispatch_pkt(priv, payload); | |
3a8fede1 | 579 | return ret; |
5e6e3a92 | 580 | } |
4c9f9fb2 AK |
581 | |
582 | if ((pkt_type == PKT_TYPE_AMSDU) && !tbl->amsdu) { | |
583 | mwifiex_11n_dispatch_pkt(priv, payload); | |
3a8fede1 | 584 | return ret; |
4c9f9fb2 AK |
585 | } |
586 | ||
8c00228e | 587 | start_win = tbl->start_win; |
3a8fede1 | 588 | prev_start_win = start_win; |
8c00228e | 589 | win_size = tbl->win_size; |
5e6e3a92 | 590 | end_win = ((start_win + win_size) - 1) & (MAX_TID_VALUE - 1); |
8acbea61 PS |
591 | if (tbl->flags & RXREOR_INIT_WINDOW_SHIFT) { |
592 | init_window_shift = true; | |
593 | tbl->flags &= ~RXREOR_INIT_WINDOW_SHIFT; | |
594 | } | |
5e6e3a92 | 595 | |
2db96c3d | 596 | if (tbl->flags & RXREOR_FORCE_NO_DROP) { |
acebe8c1 ZL |
597 | mwifiex_dbg(priv->adapter, INFO, |
598 | "RXREOR_FORCE_NO_DROP when HS is activated\n"); | |
2db96c3d | 599 | tbl->flags &= ~RXREOR_FORCE_NO_DROP; |
8acbea61 PS |
600 | } else if (init_window_shift && seq_num < start_win && |
601 | seq_num >= tbl->init_win) { | |
acebe8c1 ZL |
602 | mwifiex_dbg(priv->adapter, INFO, |
603 | "Sender TID sequence number reset %d->%d for SSN %d\n", | |
604 | start_win, seq_num, tbl->init_win); | |
8acbea61 PS |
605 | tbl->start_win = start_win = seq_num; |
606 | end_win = ((start_win + win_size) - 1) & (MAX_TID_VALUE - 1); | |
2db96c3d | 607 | } else { |
8acbea61 PS |
608 | /* |
609 | * If seq_num is less then starting win then ignore and drop | |
610 | * the packet | |
611 | */ | |
2db96c3d AP |
612 | if ((start_win + TWOPOW11) > (MAX_TID_VALUE - 1)) { |
613 | if (seq_num >= ((start_win + TWOPOW11) & | |
614 | (MAX_TID_VALUE - 1)) && | |
3a8fede1 MY |
615 | seq_num < start_win) { |
616 | ret = -1; | |
617 | goto done; | |
618 | } | |
2db96c3d | 619 | } else if ((seq_num < start_win) || |
3a8fede1 MY |
620 | (seq_num >= (start_win + TWOPOW11))) { |
621 | ret = -1; | |
622 | goto done; | |
2db96c3d | 623 | } |
5e6e3a92 BZ |
624 | } |
625 | ||
626 | /* | |
627 | * If this packet is a BAR we adjust seq_num as | |
628 | * WinStart = seq_num | |
629 | */ | |
630 | if (pkt_type == PKT_TYPE_BAR) | |
631 | seq_num = ((seq_num + win_size) - 1) & (MAX_TID_VALUE - 1); | |
632 | ||
84266841 | 633 | if (((end_win < start_win) && |
2db96c3d | 634 | (seq_num < start_win) && (seq_num > end_win)) || |
84266841 YAP |
635 | ((end_win > start_win) && ((seq_num > end_win) || |
636 | (seq_num < start_win)))) { | |
5e6e3a92 | 637 | end_win = seq_num; |
cc751498 | 638 | if (((end_win - win_size) + 1) >= 0) |
5e6e3a92 BZ |
639 | start_win = (end_win - win_size) + 1; |
640 | else | |
cc751498 | 641 | start_win = (MAX_TID_VALUE - (win_size - end_win)) + 1; |
5e6e43eb | 642 | mwifiex_11n_dispatch_pkt_until_start_win(priv, tbl, start_win); |
5e6e3a92 BZ |
643 | } |
644 | ||
645 | if (pkt_type != PKT_TYPE_BAR) { | |
646 | if (seq_num >= start_win) | |
647 | pkt_index = seq_num - start_win; | |
648 | else | |
649 | pkt_index = (seq_num+MAX_TID_VALUE) - start_win; | |
650 | ||
3a8fede1 MY |
651 | if (tbl->rx_reorder_ptr[pkt_index]) { |
652 | ret = -1; | |
653 | goto done; | |
654 | } | |
5e6e3a92 | 655 | |
8c00228e | 656 | tbl->rx_reorder_ptr[pkt_index] = payload; |
5e6e3a92 BZ |
657 | } |
658 | ||
659 | /* | |
660 | * Dispatch all packets sequentially from start_win until a | |
661 | * hole is found and adjust the start_win appropriately | |
662 | */ | |
8c00228e | 663 | mwifiex_11n_scan_and_dispatch(priv, tbl); |
5e6e3a92 | 664 | |
3a8fede1 MY |
665 | done: |
666 | if (!tbl->timer_context.timer_is_set || | |
667 | prev_start_win != tbl->start_win) | |
668 | mwifiex_11n_rxreorder_timer_restart(tbl); | |
669 | return ret; | |
5e6e3a92 BZ |
670 | } |
671 | ||
672 | /* | |
673 | * This function deletes an entry for a given TID/TA pair. | |
674 | * | |
675 | * The TID/TA are taken from del BA event body. | |
676 | */ | |
677 | void | |
3e822635 YAP |
678 | mwifiex_del_ba_tbl(struct mwifiex_private *priv, int tid, u8 *peer_mac, |
679 | u8 type, int initiator) | |
5e6e3a92 | 680 | { |
8c00228e | 681 | struct mwifiex_rx_reorder_tbl *tbl; |
5e6e3a92 | 682 | struct mwifiex_tx_ba_stream_tbl *ptx_tbl; |
39df5e82 | 683 | struct mwifiex_ra_list_tbl *ra_list; |
5e6e3a92 BZ |
684 | u8 cleanup_rx_reorder_tbl; |
685 | unsigned long flags; | |
719a25e3 | 686 | int tid_down; |
5e6e3a92 BZ |
687 | |
688 | if (type == TYPE_DELBA_RECEIVE) | |
689 | cleanup_rx_reorder_tbl = (initiator) ? true : false; | |
690 | else | |
691 | cleanup_rx_reorder_tbl = (initiator) ? false : true; | |
692 | ||
acebe8c1 ZL |
693 | mwifiex_dbg(priv->adapter, EVENT, "event: DELBA: %pM tid=%d initiator=%d\n", |
694 | peer_mac, tid, initiator); | |
5e6e3a92 BZ |
695 | |
696 | if (cleanup_rx_reorder_tbl) { | |
8c00228e | 697 | tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, |
5e6e3a92 | 698 | peer_mac); |
8c00228e | 699 | if (!tbl) { |
acebe8c1 ZL |
700 | mwifiex_dbg(priv->adapter, EVENT, |
701 | "event: TID, TA not found in table\n"); | |
5e6e3a92 BZ |
702 | return; |
703 | } | |
8c00228e | 704 | mwifiex_del_rx_reorder_entry(priv, tbl); |
5e6e3a92 | 705 | } else { |
3e822635 | 706 | ptx_tbl = mwifiex_get_ba_tbl(priv, tid, peer_mac); |
5e6e3a92 | 707 | if (!ptx_tbl) { |
acebe8c1 ZL |
708 | mwifiex_dbg(priv->adapter, EVENT, |
709 | "event: TID, RA not found in table\n"); | |
5e6e3a92 BZ |
710 | return; |
711 | } | |
719a25e3 XH |
712 | |
713 | tid_down = mwifiex_wmm_downgrade_tid(priv, tid); | |
714 | ra_list = mwifiex_wmm_get_ralist_node(priv, tid_down, peer_mac); | |
39df5e82 ZL |
715 | if (ra_list) { |
716 | ra_list->amsdu_in_ampdu = false; | |
717 | ra_list->ba_status = BA_SETUP_NONE; | |
718 | } | |
5e6e3a92 BZ |
719 | spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags); |
720 | mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, ptx_tbl); | |
721 | spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags); | |
722 | } | |
723 | } | |
724 | ||
725 | /* | |
726 | * This function handles the command response of an add BA response. | |
727 | * | |
728 | * Handling includes changing the header fields into CPU format and | |
729 | * creating the stream, provided the add BA is accepted. | |
730 | */ | |
731 | int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv, | |
732 | struct host_cmd_ds_command *resp) | |
733 | { | |
2c208890 | 734 | struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = &resp->params.add_ba_rsp; |
5e6e3a92 | 735 | int tid, win_size; |
8c00228e | 736 | struct mwifiex_rx_reorder_tbl *tbl; |
5e6e3a92 BZ |
737 | uint16_t block_ack_param_set; |
738 | ||
739 | block_ack_param_set = le16_to_cpu(add_ba_rsp->block_ack_param_set); | |
740 | ||
741 | tid = (block_ack_param_set & IEEE80211_ADDBA_PARAM_TID_MASK) | |
742 | >> BLOCKACKPARAM_TID_POS; | |
743 | /* | |
744 | * Check if we had rejected the ADDBA, if yes then do not create | |
745 | * the stream | |
746 | */ | |
63410c37 | 747 | if (le16_to_cpu(add_ba_rsp->status_code) != BA_RESULT_SUCCESS) { |
acebe8c1 ZL |
748 | mwifiex_dbg(priv->adapter, ERROR, "ADDBA RSP: failed %pM tid=%d)\n", |
749 | add_ba_rsp->peer_mac_addr, tid); | |
5e6e3a92 | 750 | |
8c00228e YAP |
751 | tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, |
752 | add_ba_rsp->peer_mac_addr); | |
753 | if (tbl) | |
754 | mwifiex_del_rx_reorder_entry(priv, tbl); | |
63410c37 AK |
755 | |
756 | return 0; | |
5e6e3a92 BZ |
757 | } |
758 | ||
63410c37 AK |
759 | win_size = (block_ack_param_set & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) |
760 | >> BLOCKACKPARAM_WINSIZE_POS; | |
761 | ||
4c9f9fb2 AK |
762 | tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, |
763 | add_ba_rsp->peer_mac_addr); | |
764 | if (tbl) { | |
765 | if ((block_ack_param_set & BLOCKACKPARAM_AMSDU_SUPP_MASK) && | |
766 | priv->add_ba_param.rx_amsdu && | |
767 | (priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)) | |
768 | tbl->amsdu = true; | |
769 | else | |
770 | tbl->amsdu = false; | |
771 | } | |
772 | ||
acebe8c1 ZL |
773 | mwifiex_dbg(priv->adapter, CMD, |
774 | "cmd: ADDBA RSP: %pM tid=%d ssn=%d win_size=%d\n", | |
63410c37 AK |
775 | add_ba_rsp->peer_mac_addr, tid, add_ba_rsp->ssn, win_size); |
776 | ||
5e6e3a92 BZ |
777 | return 0; |
778 | } | |
779 | ||
780 | /* | |
781 | * This function handles BA stream timeout event by preparing and sending | |
782 | * a command to the firmware. | |
783 | */ | |
784 | void mwifiex_11n_ba_stream_timeout(struct mwifiex_private *priv, | |
785 | struct host_cmd_ds_11n_batimeout *event) | |
786 | { | |
787 | struct host_cmd_ds_11n_delba delba; | |
788 | ||
789 | memset(&delba, 0, sizeof(struct host_cmd_ds_11n_delba)); | |
790 | memcpy(delba.peer_mac_addr, event->peer_mac_addr, ETH_ALEN); | |
791 | ||
792 | delba.del_ba_param_set |= | |
793 | cpu_to_le16((u16) event->tid << DELBA_TID_POS); | |
794 | delba.del_ba_param_set |= cpu_to_le16( | |
795 | (u16) event->origninator << DELBA_INITIATOR_POS); | |
796 | delba.reason_code = cpu_to_le16(WLAN_REASON_QSTA_TIMEOUT); | |
fa0ecbb9 | 797 | mwifiex_send_cmd(priv, HostCmd_CMD_11N_DELBA, 0, 0, &delba, false); |
5e6e3a92 BZ |
798 | } |
799 | ||
800 | /* | |
801 | * This function cleans up the Rx reorder table by deleting all the entries | |
802 | * and re-initializing. | |
803 | */ | |
804 | void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv) | |
805 | { | |
806 | struct mwifiex_rx_reorder_tbl *del_tbl_ptr, *tmp_node; | |
807 | unsigned long flags; | |
808 | ||
809 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); | |
810 | list_for_each_entry_safe(del_tbl_ptr, tmp_node, | |
811 | &priv->rx_reorder_tbl_ptr, list) { | |
812 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); | |
8c00228e | 813 | mwifiex_del_rx_reorder_entry(priv, del_tbl_ptr); |
5e6e3a92 BZ |
814 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); |
815 | } | |
2d702830 | 816 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); |
5e6e3a92 BZ |
817 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); |
818 | ||
92583924 | 819 | mwifiex_reset_11n_rx_seq_num(priv); |
5e6e3a92 | 820 | } |
2db96c3d AP |
821 | |
822 | /* | |
823 | * This function updates all rx_reorder_tbl's flags. | |
824 | */ | |
825 | void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags) | |
826 | { | |
827 | struct mwifiex_private *priv; | |
828 | struct mwifiex_rx_reorder_tbl *tbl; | |
829 | unsigned long lock_flags; | |
830 | int i; | |
831 | ||
832 | for (i = 0; i < adapter->priv_num; i++) { | |
833 | priv = adapter->priv[i]; | |
834 | if (!priv) | |
835 | continue; | |
2db96c3d AP |
836 | |
837 | spin_lock_irqsave(&priv->rx_reorder_tbl_lock, lock_flags); | |
2d702830 AK |
838 | if (list_empty(&priv->rx_reorder_tbl_ptr)) { |
839 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, | |
840 | lock_flags); | |
841 | continue; | |
842 | } | |
843 | ||
2db96c3d AP |
844 | list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list) |
845 | tbl->flags = flags; | |
846 | spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, lock_flags); | |
847 | } | |
848 | ||
849 | return; | |
850 | } | |
d219b7eb CC |
851 | |
852 | /* This function update all the rx_win_size based on coex flag | |
853 | */ | |
854 | static void mwifiex_update_ampdu_rxwinsize(struct mwifiex_adapter *adapter, | |
855 | bool coex_flag) | |
856 | { | |
857 | u8 i; | |
858 | u32 rx_win_size; | |
859 | struct mwifiex_private *priv; | |
860 | ||
861 | dev_dbg(adapter->dev, "Update rxwinsize %d\n", coex_flag); | |
862 | ||
863 | for (i = 0; i < adapter->priv_num; i++) { | |
864 | if (!adapter->priv[i]) | |
865 | continue; | |
866 | priv = adapter->priv[i]; | |
867 | rx_win_size = priv->add_ba_param.rx_win_size; | |
868 | if (coex_flag) { | |
869 | if (priv->bss_type == MWIFIEX_BSS_TYPE_STA) | |
870 | priv->add_ba_param.rx_win_size = | |
871 | MWIFIEX_STA_COEX_AMPDU_DEF_RXWINSIZE; | |
872 | if (priv->bss_type == MWIFIEX_BSS_TYPE_P2P) | |
873 | priv->add_ba_param.rx_win_size = | |
874 | MWIFIEX_STA_COEX_AMPDU_DEF_RXWINSIZE; | |
875 | if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) | |
876 | priv->add_ba_param.rx_win_size = | |
877 | MWIFIEX_UAP_COEX_AMPDU_DEF_RXWINSIZE; | |
878 | } else { | |
879 | if (priv->bss_type == MWIFIEX_BSS_TYPE_STA) | |
880 | priv->add_ba_param.rx_win_size = | |
881 | MWIFIEX_STA_AMPDU_DEF_RXWINSIZE; | |
882 | if (priv->bss_type == MWIFIEX_BSS_TYPE_P2P) | |
883 | priv->add_ba_param.rx_win_size = | |
884 | MWIFIEX_STA_AMPDU_DEF_RXWINSIZE; | |
885 | if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) | |
886 | priv->add_ba_param.rx_win_size = | |
887 | MWIFIEX_UAP_AMPDU_DEF_RXWINSIZE; | |
888 | } | |
889 | ||
890 | if (adapter->coex_win_size && adapter->coex_rx_win_size) | |
891 | priv->add_ba_param.rx_win_size = | |
892 | adapter->coex_rx_win_size; | |
893 | ||
894 | if (rx_win_size != priv->add_ba_param.rx_win_size) { | |
895 | if (!priv->media_connected) | |
896 | continue; | |
897 | for (i = 0; i < MAX_NUM_TID; i++) | |
898 | mwifiex_11n_delba(priv, i); | |
899 | } | |
900 | } | |
901 | } | |
902 | ||
903 | /* This function check coex for RX BA | |
904 | */ | |
905 | void mwifiex_coex_ampdu_rxwinsize(struct mwifiex_adapter *adapter) | |
906 | { | |
907 | u8 i; | |
908 | struct mwifiex_private *priv; | |
909 | u8 count = 0; | |
910 | ||
911 | for (i = 0; i < adapter->priv_num; i++) { | |
912 | if (adapter->priv[i]) { | |
913 | priv = adapter->priv[i]; | |
914 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) { | |
915 | if (priv->media_connected) | |
916 | count++; | |
917 | } | |
918 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
919 | if (priv->bss_started) | |
920 | count++; | |
921 | } | |
922 | } | |
923 | if (count >= MWIFIEX_BSS_COEX_COUNT) | |
924 | break; | |
925 | } | |
926 | if (count >= MWIFIEX_BSS_COEX_COUNT) | |
927 | mwifiex_update_ampdu_rxwinsize(adapter, true); | |
928 | else | |
929 | mwifiex_update_ampdu_rxwinsize(adapter, false); | |
930 | } | |
99ffe72c XH |
931 | |
932 | /* This function handles rxba_sync event | |
933 | */ | |
934 | void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv, | |
935 | u8 *event_buf, u16 len) | |
936 | { | |
937 | struct mwifiex_ie_types_rxba_sync *tlv_rxba = (void *)event_buf; | |
938 | u16 tlv_type, tlv_len; | |
939 | struct mwifiex_rx_reorder_tbl *rx_reor_tbl_ptr; | |
940 | u8 i, j; | |
941 | u16 seq_num, tlv_seq_num, tlv_bitmap_len; | |
942 | int tlv_buf_left = len; | |
943 | int ret; | |
944 | u8 *tmp; | |
945 | ||
946 | mwifiex_dbg_dump(priv->adapter, EVT_D, "RXBA_SYNC event:", | |
947 | event_buf, len); | |
948 | while (tlv_buf_left >= sizeof(*tlv_rxba)) { | |
949 | tlv_type = le16_to_cpu(tlv_rxba->header.type); | |
950 | tlv_len = le16_to_cpu(tlv_rxba->header.len); | |
951 | if (tlv_type != TLV_TYPE_RXBA_SYNC) { | |
952 | mwifiex_dbg(priv->adapter, ERROR, | |
953 | "Wrong TLV id=0x%x\n", tlv_type); | |
954 | return; | |
955 | } | |
956 | ||
957 | tlv_seq_num = le16_to_cpu(tlv_rxba->seq_num); | |
958 | tlv_bitmap_len = le16_to_cpu(tlv_rxba->bitmap_len); | |
959 | mwifiex_dbg(priv->adapter, INFO, | |
960 | "%pM tid=%d seq_num=%d bitmap_len=%d\n", | |
961 | tlv_rxba->mac, tlv_rxba->tid, tlv_seq_num, | |
962 | tlv_bitmap_len); | |
963 | ||
964 | rx_reor_tbl_ptr = | |
965 | mwifiex_11n_get_rx_reorder_tbl(priv, tlv_rxba->tid, | |
966 | tlv_rxba->mac); | |
967 | if (!rx_reor_tbl_ptr) { | |
968 | mwifiex_dbg(priv->adapter, ERROR, | |
969 | "Can not find rx_reorder_tbl!"); | |
970 | return; | |
971 | } | |
972 | ||
973 | for (i = 0; i < tlv_bitmap_len; i++) { | |
974 | for (j = 0 ; j < 8; j++) { | |
975 | if (tlv_rxba->bitmap[i] & (1 << j)) { | |
976 | seq_num = (MAX_TID_VALUE - 1) & | |
977 | (tlv_seq_num + i * 8 + j); | |
978 | ||
979 | mwifiex_dbg(priv->adapter, ERROR, | |
980 | "drop packet,seq=%d\n", | |
981 | seq_num); | |
982 | ||
983 | ret = mwifiex_11n_rx_reorder_pkt | |
984 | (priv, seq_num, tlv_rxba->tid, | |
985 | tlv_rxba->mac, 0, NULL); | |
986 | ||
987 | if (ret) | |
988 | mwifiex_dbg(priv->adapter, | |
989 | ERROR, | |
990 | "Fail to drop packet"); | |
991 | } | |
992 | } | |
993 | } | |
994 | ||
995 | tlv_buf_left -= (sizeof(*tlv_rxba) + tlv_len); | |
996 | tmp = (u8 *)tlv_rxba + tlv_len + sizeof(*tlv_rxba); | |
997 | tlv_rxba = (struct mwifiex_ie_types_rxba_sync *)tmp; | |
998 | } | |
999 | } |