1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #include <drv_types.h>
8 #include <rtw_debug.h>
9
10 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
11 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
12
_init_txservq(struct tx_servq * ptxservq)13 static void _init_txservq(struct tx_servq *ptxservq)
14 {
15 INIT_LIST_HEAD(&ptxservq->tx_pending);
16 _rtw_init_queue(&ptxservq->sta_pending);
17 ptxservq->qcnt = 0;
18 }
19
_rtw_init_sta_xmit_priv(struct sta_xmit_priv * psta_xmitpriv)20 void _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv)
21 {
22 memset((unsigned char *)psta_xmitpriv, 0, sizeof(struct sta_xmit_priv));
23
24 spin_lock_init(&psta_xmitpriv->lock);
25
26 _init_txservq(&psta_xmitpriv->be_q);
27 _init_txservq(&psta_xmitpriv->bk_q);
28 _init_txservq(&psta_xmitpriv->vi_q);
29 _init_txservq(&psta_xmitpriv->vo_q);
30 INIT_LIST_HEAD(&psta_xmitpriv->legacy_dz);
31 INIT_LIST_HEAD(&psta_xmitpriv->apsd);
32 }
33
_rtw_init_xmit_priv(struct xmit_priv * pxmitpriv,struct adapter * padapter)34 s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
35 {
36 int i;
37 struct xmit_buf *pxmitbuf;
38 struct xmit_frame *pxframe;
39 signed int res = _SUCCESS;
40
41 spin_lock_init(&pxmitpriv->lock);
42 spin_lock_init(&pxmitpriv->lock_sctx);
43 init_completion(&pxmitpriv->xmit_comp);
44 init_completion(&pxmitpriv->terminate_xmitthread_comp);
45
46 /*
47 * Please insert all the queue initializaiton using _rtw_init_queue below
48 */
49
50 pxmitpriv->adapter = padapter;
51
52 _rtw_init_queue(&pxmitpriv->be_pending);
53 _rtw_init_queue(&pxmitpriv->bk_pending);
54 _rtw_init_queue(&pxmitpriv->vi_pending);
55 _rtw_init_queue(&pxmitpriv->vo_pending);
56 _rtw_init_queue(&pxmitpriv->bm_pending);
57
58 _rtw_init_queue(&pxmitpriv->free_xmit_queue);
59
60 /*
61 * Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME,
62 * and initialize free_xmit_frame below.
63 * Please also apply free_txobj to link_up all the xmit_frames...
64 */
65
66 pxmitpriv->pallocated_frame_buf = vzalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4);
67
68 if (!pxmitpriv->pallocated_frame_buf) {
69 pxmitpriv->pxmit_frame_buf = NULL;
70 res = _FAIL;
71 goto exit;
72 }
73 pxmitpriv->pxmit_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_frame_buf), 4);
74
75 pxframe = (struct xmit_frame *) pxmitpriv->pxmit_frame_buf;
76
77 for (i = 0; i < NR_XMITFRAME; i++) {
78 INIT_LIST_HEAD(&pxframe->list);
79
80 pxframe->padapter = padapter;
81 pxframe->frame_tag = NULL_FRAMETAG;
82
83 pxframe->pkt = NULL;
84
85 pxframe->buf_addr = NULL;
86 pxframe->pxmitbuf = NULL;
87
88 list_add_tail(&pxframe->list,
89 &pxmitpriv->free_xmit_queue.queue);
90
91 pxframe++;
92 }
93
94 pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
95
96 pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
97
98 /* init xmit_buf */
99 _rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
100 _rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
101
102 pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
103
104 if (!pxmitpriv->pallocated_xmitbuf) {
105 res = _FAIL;
106 goto exit;
107 }
108
109 pxmitpriv->pxmitbuf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_xmitbuf), 4);
110
111 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
112
113 for (i = 0; i < NR_XMITBUFF; i++) {
114 INIT_LIST_HEAD(&pxmitbuf->list);
115
116 pxmitbuf->priv_data = NULL;
117 pxmitbuf->padapter = padapter;
118 pxmitbuf->buf_tag = XMITBUF_DATA;
119
120 /* Tx buf allocation may fail sometimes, so sleep and retry. */
121 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
122 if (res == _FAIL) {
123 msleep(10);
124 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
125 if (res == _FAIL)
126 goto exit;
127 }
128
129 pxmitbuf->phead = pxmitbuf->pbuf;
130 pxmitbuf->pend = pxmitbuf->pbuf + MAX_XMITBUF_SZ;
131 pxmitbuf->len = 0;
132 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
133
134 pxmitbuf->flags = XMIT_VO_QUEUE;
135
136 list_add_tail(&pxmitbuf->list,
137 &pxmitpriv->free_xmitbuf_queue.queue);
138 #ifdef DBG_XMIT_BUF
139 pxmitbuf->no = i;
140 #endif
141
142 pxmitbuf++;
143 }
144
145 pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
146
147 /* init xframe_ext queue, the same count as extbuf */
148 _rtw_init_queue(&pxmitpriv->free_xframe_ext_queue);
149
150 pxmitpriv->xframe_ext_alloc_addr = vzalloc(NR_XMIT_EXTBUFF * sizeof(struct xmit_frame) + 4);
151
152 if (!pxmitpriv->xframe_ext_alloc_addr) {
153 pxmitpriv->xframe_ext = NULL;
154 res = _FAIL;
155 goto exit;
156 }
157 pxmitpriv->xframe_ext = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->xframe_ext_alloc_addr), 4);
158 pxframe = (struct xmit_frame *)pxmitpriv->xframe_ext;
159
160 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
161 INIT_LIST_HEAD(&pxframe->list);
162
163 pxframe->padapter = padapter;
164 pxframe->frame_tag = NULL_FRAMETAG;
165
166 pxframe->pkt = NULL;
167
168 pxframe->buf_addr = NULL;
169 pxframe->pxmitbuf = NULL;
170
171 pxframe->ext_tag = 1;
172
173 list_add_tail(&pxframe->list,
174 &pxmitpriv->free_xframe_ext_queue.queue);
175
176 pxframe++;
177 }
178 pxmitpriv->free_xframe_ext_cnt = NR_XMIT_EXTBUFF;
179
180 /* Init xmit extension buff */
181 _rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
182
183 pxmitpriv->pallocated_xmit_extbuf = vzalloc(NR_XMIT_EXTBUFF * sizeof(struct xmit_buf) + 4);
184
185 if (!pxmitpriv->pallocated_xmit_extbuf) {
186 res = _FAIL;
187 goto exit;
188 }
189
190 pxmitpriv->pxmit_extbuf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(pxmitpriv->pallocated_xmit_extbuf), 4);
191
192 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
193
194 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
195 INIT_LIST_HEAD(&pxmitbuf->list);
196
197 pxmitbuf->priv_data = NULL;
198 pxmitbuf->padapter = padapter;
199 pxmitbuf->buf_tag = XMITBUF_MGNT;
200
201 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, MAX_XMIT_EXTBUF_SZ + XMITBUF_ALIGN_SZ, true);
202 if (res == _FAIL) {
203 res = _FAIL;
204 goto exit;
205 }
206
207 pxmitbuf->phead = pxmitbuf->pbuf;
208 pxmitbuf->pend = pxmitbuf->pbuf + MAX_XMIT_EXTBUF_SZ;
209 pxmitbuf->len = 0;
210 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
211
212 list_add_tail(&pxmitbuf->list,
213 &pxmitpriv->free_xmit_extbuf_queue.queue);
214 #ifdef DBG_XMIT_BUF_EXT
215 pxmitbuf->no = i;
216 #endif
217 pxmitbuf++;
218 }
219
220 pxmitpriv->free_xmit_extbuf_cnt = NR_XMIT_EXTBUFF;
221
222 for (i = 0; i < CMDBUF_MAX; i++) {
223 pxmitbuf = &pxmitpriv->pcmd_xmitbuf[i];
224 if (pxmitbuf) {
225 INIT_LIST_HEAD(&pxmitbuf->list);
226
227 pxmitbuf->priv_data = NULL;
228 pxmitbuf->padapter = padapter;
229 pxmitbuf->buf_tag = XMITBUF_CMD;
230
231 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ, true);
232 if (res == _FAIL) {
233 res = _FAIL;
234 goto exit;
235 }
236
237 pxmitbuf->phead = pxmitbuf->pbuf;
238 pxmitbuf->pend = pxmitbuf->pbuf + MAX_CMDBUF_SZ;
239 pxmitbuf->len = 0;
240 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
241 pxmitbuf->alloc_sz = MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ;
242 }
243 }
244
245 res = rtw_alloc_hwxmits(padapter);
246 if (res == _FAIL)
247 goto exit;
248 rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
249
250 for (i = 0; i < 4; i++)
251 pxmitpriv->wmm_para_seq[i] = i;
252
253 pxmitpriv->ack_tx = false;
254 mutex_init(&pxmitpriv->ack_tx_mutex);
255 rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
256
257 rtw_hal_init_xmit_priv(padapter);
258
259 exit:
260 return res;
261 }
262
_rtw_free_xmit_priv(struct xmit_priv * pxmitpriv)263 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
264 {
265 int i;
266 struct adapter *padapter = pxmitpriv->adapter;
267 struct xmit_frame *pxmitframe = (struct xmit_frame *) pxmitpriv->pxmit_frame_buf;
268 struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
269
270 rtw_hal_free_xmit_priv(padapter);
271
272 if (!pxmitpriv->pxmit_frame_buf)
273 return;
274
275 for (i = 0; i < NR_XMITFRAME; i++) {
276 rtw_os_xmit_complete(padapter, pxmitframe);
277
278 pxmitframe++;
279 }
280
281 for (i = 0; i < NR_XMITBUFF; i++) {
282 rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ), true);
283
284 pxmitbuf++;
285 }
286
287 vfree(pxmitpriv->pallocated_frame_buf);
288 vfree(pxmitpriv->pallocated_xmitbuf);
289
290 /* free xframe_ext queue, the same count as extbuf */
291 pxmitframe = (struct xmit_frame *)pxmitpriv->xframe_ext;
292 if (pxmitframe) {
293 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
294 rtw_os_xmit_complete(padapter, pxmitframe);
295 pxmitframe++;
296 }
297 }
298
299 vfree(pxmitpriv->xframe_ext_alloc_addr);
300
301 /* free xmit extension buff */
302 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
303 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
304 rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMIT_EXTBUF_SZ + XMITBUF_ALIGN_SZ), true);
305
306 pxmitbuf++;
307 }
308
309 vfree(pxmitpriv->pallocated_xmit_extbuf);
310
311 for (i = 0; i < CMDBUF_MAX; i++) {
312 pxmitbuf = &pxmitpriv->pcmd_xmitbuf[i];
313 if (pxmitbuf)
314 rtw_os_xmit_resource_free(padapter, pxmitbuf, MAX_CMDBUF_SZ+XMITBUF_ALIGN_SZ, true);
315 }
316
317 rtw_free_hwxmits(padapter);
318
319 mutex_destroy(&pxmitpriv->ack_tx_mutex);
320 }
321
query_ra_short_GI(struct sta_info * psta)322 u8 query_ra_short_GI(struct sta_info *psta)
323 {
324 u8 sgi = false, sgi_20m = false, sgi_40m = false;
325
326 sgi_20m = psta->htpriv.sgi_20m;
327 sgi_40m = psta->htpriv.sgi_40m;
328
329 switch (psta->bw_mode) {
330 case CHANNEL_WIDTH_40:
331 sgi = sgi_40m;
332 break;
333 case CHANNEL_WIDTH_20:
334 default:
335 sgi = sgi_20m;
336 break;
337 }
338
339 return sgi;
340 }
341
update_attrib_vcs_info(struct adapter * padapter,struct xmit_frame * pxmitframe)342 static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
343 {
344 u32 sz;
345 struct pkt_attrib *pattrib = &pxmitframe->attrib;
346 /* struct sta_info *psta = pattrib->psta; */
347 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
348 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
349
350 if (pattrib->nr_frags != 1)
351 sz = padapter->xmitpriv.frag_len;
352 else /* no frag */
353 sz = pattrib->last_txcmdsz;
354
355 /* (1) RTS_Threshold is compared to the MPDU, not MSDU. */
356 /* (2) If there are more than one frag in this MSDU, only the first frag uses protection frame. */
357 /* Other fragments are protected by previous fragment. */
358 /* So we only need to check the length of first fragment. */
359 if (pmlmeext->cur_wireless_mode < WIRELESS_11_24N || padapter->registrypriv.wifi_spec) {
360 if (sz > padapter->registrypriv.rts_thresh) {
361 pattrib->vcs_mode = RTS_CTS;
362 } else {
363 if (pattrib->rtsen)
364 pattrib->vcs_mode = RTS_CTS;
365 else if (pattrib->cts2self)
366 pattrib->vcs_mode = CTS_TO_SELF;
367 else
368 pattrib->vcs_mode = NONE_VCS;
369 }
370 } else {
371 while (true) {
372 /* IOT action */
373 if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_ATHEROS) && (pattrib->ampdu_en == true) &&
374 (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)) {
375 pattrib->vcs_mode = CTS_TO_SELF;
376 break;
377 }
378
379 /* check ERP protection */
380 if (pattrib->rtsen || pattrib->cts2self) {
381 if (pattrib->rtsen)
382 pattrib->vcs_mode = RTS_CTS;
383 else if (pattrib->cts2self)
384 pattrib->vcs_mode = CTS_TO_SELF;
385
386 break;
387 }
388
389 /* check HT op mode */
390 if (pattrib->ht_en) {
391 u8 HTOpMode = pmlmeinfo->HT_protection;
392
393 if ((pmlmeext->cur_bwmode && (HTOpMode == 2 || HTOpMode == 3)) ||
394 (!pmlmeext->cur_bwmode && HTOpMode == 3)) {
395 pattrib->vcs_mode = RTS_CTS;
396 break;
397 }
398 }
399
400 /* check rts */
401 if (sz > padapter->registrypriv.rts_thresh) {
402 pattrib->vcs_mode = RTS_CTS;
403 break;
404 }
405
406 /* to do list: check MIMO power save condition. */
407
408 /* check AMPDU aggregation for TXOP */
409 if (pattrib->ampdu_en == true) {
410 pattrib->vcs_mode = RTS_CTS;
411 break;
412 }
413
414 pattrib->vcs_mode = NONE_VCS;
415 break;
416 }
417 }
418
419 /* for debug : force driver control vrtl_carrier_sense. */
420 if (padapter->driver_vcs_en == 1)
421 pattrib->vcs_mode = padapter->driver_vcs_type;
422 }
423
update_attrib_phy_info(struct adapter * padapter,struct pkt_attrib * pattrib,struct sta_info * psta)424 static void update_attrib_phy_info(struct adapter *padapter, struct pkt_attrib *pattrib, struct sta_info *psta)
425 {
426 struct mlme_ext_priv *mlmeext = &padapter->mlmeextpriv;
427
428 pattrib->rtsen = psta->rtsen;
429 pattrib->cts2self = psta->cts2self;
430
431 pattrib->mdata = 0;
432 pattrib->eosp = 0;
433 pattrib->triggered = 0;
434 pattrib->ampdu_spacing = 0;
435
436 /* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
437 pattrib->qos_en = psta->qos_option;
438
439 pattrib->raid = psta->raid;
440
441 if (mlmeext->cur_bwmode < psta->bw_mode)
442 pattrib->bwmode = mlmeext->cur_bwmode;
443 else
444 pattrib->bwmode = psta->bw_mode;
445
446 pattrib->sgi = query_ra_short_GI(psta);
447
448 pattrib->ldpc = psta->ldpc;
449 pattrib->stbc = psta->stbc;
450
451 pattrib->ht_en = psta->htpriv.ht_option;
452 pattrib->ch_offset = psta->htpriv.ch_offset;
453 pattrib->ampdu_en = false;
454
455 if (padapter->driver_ampdu_spacing != 0xFF) /* driver control AMPDU Density for peer sta's rx */
456 pattrib->ampdu_spacing = padapter->driver_ampdu_spacing;
457 else
458 pattrib->ampdu_spacing = psta->htpriv.rx_ampdu_min_spacing;
459
460 pattrib->retry_ctrl = false;
461 }
462
update_attrib_sec_info(struct adapter * padapter,struct pkt_attrib * pattrib,struct sta_info * psta)463 static s32 update_attrib_sec_info(struct adapter *padapter, struct pkt_attrib *pattrib, struct sta_info *psta)
464 {
465 signed int res = _SUCCESS;
466 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
467 struct security_priv *psecuritypriv = &padapter->securitypriv;
468 signed int bmcast = IS_MCAST(pattrib->ra);
469
470 memset(pattrib->dot118021x_UncstKey.skey, 0, 16);
471 memset(pattrib->dot11tkiptxmickey.skey, 0, 16);
472 pattrib->mac_id = psta->mac_id;
473
474 if (psta->ieee8021x_blocked == true) {
475 pattrib->encrypt = 0;
476
477 if ((pattrib->ether_type != 0x888e) && (check_fwstate(pmlmepriv, WIFI_MP_STATE) == false)) {
478 res = _FAIL;
479 goto exit;
480 }
481 } else {
482 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast);
483
484 switch (psecuritypriv->dot11AuthAlgrthm) {
485 case dot11AuthAlgrthm_Open:
486 case dot11AuthAlgrthm_Shared:
487 case dot11AuthAlgrthm_Auto:
488 pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
489 break;
490 case dot11AuthAlgrthm_8021X:
491 if (bmcast)
492 pattrib->key_idx = (u8)psecuritypriv->dot118021XGrpKeyid;
493 else
494 pattrib->key_idx = 0;
495 break;
496 default:
497 pattrib->key_idx = 0;
498 break;
499 }
500
501 /* For WPS 1.0 WEP, driver should not encrypt EAPOL Packet for WPS handshake. */
502 if (((pattrib->encrypt == _WEP40_) || (pattrib->encrypt == _WEP104_)) && (pattrib->ether_type == 0x888e))
503 pattrib->encrypt = _NO_PRIVACY_;
504 }
505
506 switch (pattrib->encrypt) {
507 case _WEP40_:
508 case _WEP104_:
509 pattrib->iv_len = 4;
510 pattrib->icv_len = 4;
511 WEP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
512 break;
513
514 case _TKIP_:
515 pattrib->iv_len = 8;
516 pattrib->icv_len = 4;
517
518 if (psecuritypriv->busetkipkey == _FAIL) {
519 res = _FAIL;
520 goto exit;
521 }
522
523 if (bmcast)
524 TKIP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
525 else
526 TKIP_IV(pattrib->iv, psta->dot11txpn, 0);
527
528 memcpy(pattrib->dot11tkiptxmickey.skey, psta->dot11tkiptxmickey.skey, 16);
529
530 break;
531
532 case _AES_:
533
534 pattrib->iv_len = 8;
535 pattrib->icv_len = 8;
536
537 if (bmcast)
538 AES_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
539 else
540 AES_IV(pattrib->iv, psta->dot11txpn, 0);
541
542 break;
543
544 default:
545 pattrib->iv_len = 0;
546 pattrib->icv_len = 0;
547 break;
548 }
549
550 if (pattrib->encrypt > 0)
551 memcpy(pattrib->dot118021x_UncstKey.skey, psta->dot118021x_UncstKey.skey, 16);
552
553 if (pattrib->encrypt &&
554 ((padapter->securitypriv.sw_encrypt) || (!psecuritypriv->hw_decrypted)))
555 pattrib->bswenc = true;
556 else
557 pattrib->bswenc = false;
558
559 exit:
560
561 return res;
562 }
563
qos_acm(u8 acm_mask,u8 priority)564 u8 qos_acm(u8 acm_mask, u8 priority)
565 {
566 switch (priority) {
567 case 0:
568 case 3:
569 if (acm_mask & BIT(1))
570 priority = 1;
571 break;
572 case 1:
573 case 2:
574 break;
575 case 4:
576 case 5:
577 if (acm_mask & BIT(2))
578 priority = 0;
579 break;
580 case 6:
581 case 7:
582 if (acm_mask & BIT(3))
583 priority = 5;
584 break;
585 default:
586 break;
587 }
588
589 return priority;
590 }
591
set_qos(struct pkt_file * ppktfile,struct pkt_attrib * pattrib)592 static void set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
593 {
594 struct ethhdr etherhdr;
595 struct iphdr ip_hdr;
596 s32 UserPriority = 0;
597
598 _rtw_open_pktfile(ppktfile->pkt, ppktfile);
599 _rtw_pktfile_read(ppktfile, (unsigned char *)ðerhdr, ETH_HLEN);
600
601 /* get UserPriority from IP hdr */
602 if (pattrib->ether_type == 0x0800) {
603 _rtw_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr));
604 UserPriority = ip_hdr.tos >> 5;
605 }
606 pattrib->priority = UserPriority;
607 pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
608 pattrib->subtype = WIFI_QOS_DATA_TYPE;
609 }
610
update_attrib(struct adapter * padapter,struct sk_buff * pkt,struct pkt_attrib * pattrib)611 static s32 update_attrib(struct adapter *padapter, struct sk_buff *pkt, struct pkt_attrib *pattrib)
612 {
613 struct pkt_file pktfile;
614 struct sta_info *psta = NULL;
615 struct ethhdr etherhdr;
616
617 signed int bmcast;
618 struct sta_priv *pstapriv = &padapter->stapriv;
619 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
620 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
621 signed int res = _SUCCESS;
622
623 _rtw_open_pktfile(pkt, &pktfile);
624 _rtw_pktfile_read(&pktfile, (u8 *)ðerhdr, ETH_HLEN);
625
626 pattrib->ether_type = ntohs(etherhdr.h_proto);
627
628 memcpy(pattrib->dst, ðerhdr.h_dest, ETH_ALEN);
629 memcpy(pattrib->src, ðerhdr.h_source, ETH_ALEN);
630
631 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
632 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
633 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
634 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
635 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
636 memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
637 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
638 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
639 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
640 memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
641 }
642
643 pattrib->pktlen = pktfile.pkt_len;
644
645 if (pattrib->ether_type == ETH_P_IP) {
646 /* The following is for DHCP and ARP packet, we use cck1M to tx these packets and let LPS awake some time */
647 /* to prevent DHCP protocol fail */
648
649 u8 tmp[24];
650
651 _rtw_pktfile_read(&pktfile, &tmp[0], 24);
652
653 pattrib->dhcp_pkt = 0;
654 if (pktfile.pkt_len > 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
655 if (pattrib->ether_type == ETH_P_IP) {/* IP header */
656 if (((tmp[21] == 68) && (tmp[23] == 67)) ||
657 ((tmp[21] == 67) && (tmp[23] == 68))) {
658 /* 68 : UDP BOOTP client */
659 /* 67 : UDP BOOTP server */
660 pattrib->dhcp_pkt = 1;
661 }
662 }
663 }
664
665 /* for parsing ICMP pakcets */
666 {
667 struct iphdr *piphdr = (struct iphdr *)tmp;
668
669 pattrib->icmp_pkt = 0;
670 if (piphdr->protocol == 0x1) /* protocol type in ip header 0x1 is ICMP */
671 pattrib->icmp_pkt = 1;
672 }
673 } else if (pattrib->ether_type == 0x888e) {
674 netdev_dbg(padapter->pnetdev, "send eapol packet\n");
675 }
676
677 if ((pattrib->ether_type == 0x888e) || (pattrib->dhcp_pkt == 1))
678 rtw_set_scan_deny(padapter, 3000);
679
680 /* If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
681 if (pattrib->icmp_pkt == 1)
682 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1);
683 else if (pattrib->dhcp_pkt == 1)
684 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
685
686 bmcast = IS_MCAST(pattrib->ra);
687
688 /* get sta_info */
689 if (bmcast) {
690 psta = rtw_get_bcmc_stainfo(padapter);
691 } else {
692 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
693 if (!psta) { /* if we cannot get psta => drop the pkt */
694 res = _FAIL;
695 goto exit;
696 } else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) && (!(psta->state & _FW_LINKED))) {
697 res = _FAIL;
698 goto exit;
699 }
700 }
701
702 if (!psta) {
703 /* if we cannot get psta => drop the pkt */
704 res = _FAIL;
705 goto exit;
706 }
707
708 if (!(psta->state & _FW_LINKED))
709 return _FAIL;
710
711 /* TODO:_lock */
712 if (update_attrib_sec_info(padapter, pattrib, psta) == _FAIL) {
713 res = _FAIL;
714 goto exit;
715 }
716
717 update_attrib_phy_info(padapter, pattrib, psta);
718
719 pattrib->psta = psta;
720 /* TODO:_unlock */
721
722 pattrib->pctrl = 0;
723
724 pattrib->ack_policy = 0;
725 /* get ether_hdr_len */
726 pattrib->pkt_hdrlen = ETH_HLEN;/* pattrib->ether_type == 0x8100) ? (14 + 4): 14; vlan tag */
727
728 pattrib->hdrlen = WLAN_HDR_A3_LEN;
729 pattrib->subtype = WIFI_DATA_TYPE;
730 pattrib->priority = 0;
731
732 if (check_fwstate(pmlmepriv, WIFI_AP_STATE|WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
733 if (pattrib->qos_en)
734 set_qos(&pktfile, pattrib);
735 } else {
736 if (pqospriv->qos_option) {
737 set_qos(&pktfile, pattrib);
738
739 if (pmlmepriv->acm_mask != 0)
740 pattrib->priority = qos_acm(pmlmepriv->acm_mask, pattrib->priority);
741 }
742 }
743
744 /* pattrib->priority = 5; force to used VI queue, for testing */
745
746 exit:
747 return res;
748 }
749
xmitframe_addmic(struct adapter * padapter,struct xmit_frame * pxmitframe)750 static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitframe)
751 {
752 signed int curfragnum, length;
753 u8 *pframe, *payload, mic[8];
754 struct mic_data micdata;
755 struct pkt_attrib *pattrib = &pxmitframe->attrib;
756 struct security_priv *psecuritypriv = &padapter->securitypriv;
757 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
758 u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
759 u8 hw_hdr_offset = 0;
760 signed int bmcst = IS_MCAST(pattrib->ra);
761
762 hw_hdr_offset = TXDESC_OFFSET;
763
764 if (pattrib->encrypt == _TKIP_) {
765 /* encode mic code */
766 {
767 u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
768
769 pframe = pxmitframe->buf_addr + hw_hdr_offset;
770
771 if (bmcst) {
772 if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
773 return _FAIL;
774 /* start to calculate the mic code */
775 rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
776 } else {
777 if (!memcmp(&pattrib->dot11tkiptxmickey.skey[0], null_key, 16))
778 return _FAIL;
779 /* start to calculate the mic code */
780 rtw_secmicsetkey(&micdata, &pattrib->dot11tkiptxmickey.skey[0]);
781 }
782
783 if (pframe[1]&1) { /* ToDS == 1 */
784 rtw_secmicappend(&micdata, &pframe[16], 6); /* DA */
785 if (pframe[1]&2) /* From Ds == 1 */
786 rtw_secmicappend(&micdata, &pframe[24], 6);
787 else
788 rtw_secmicappend(&micdata, &pframe[10], 6);
789 } else { /* ToDS == 0 */
790 rtw_secmicappend(&micdata, &pframe[4], 6); /* DA */
791 if (pframe[1]&2) /* From Ds == 1 */
792 rtw_secmicappend(&micdata, &pframe[16], 6);
793 else
794 rtw_secmicappend(&micdata, &pframe[10], 6);
795 }
796
797 if (pattrib->qos_en)
798 priority[0] = (u8)pxmitframe->attrib.priority;
799
800 rtw_secmicappend(&micdata, &priority[0], 4);
801
802 payload = pframe;
803
804 for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
805 payload = (u8 *)round_up((SIZE_PTR)(payload), 4);
806 payload = payload+pattrib->hdrlen+pattrib->iv_len;
807
808 if ((curfragnum+1) == pattrib->nr_frags) {
809 length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
810 rtw_secmicappend(&micdata, payload, length);
811 payload = payload+length;
812 } else {
813 length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
814 rtw_secmicappend(&micdata, payload, length);
815 payload = payload+length+pattrib->icv_len;
816 }
817 }
818 rtw_secgetmic(&micdata, &mic[0]);
819 /* add mic code and add the mic code length in last_txcmdsz */
820
821 memcpy(payload, &mic[0], 8);
822 pattrib->last_txcmdsz += 8;
823 }
824 }
825 return _SUCCESS;
826 }
827
xmitframe_swencrypt(struct adapter * padapter,struct xmit_frame * pxmitframe)828 static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
829 {
830 struct pkt_attrib *pattrib = &pxmitframe->attrib;
831
832 if (pattrib->bswenc) {
833 switch (pattrib->encrypt) {
834 case _WEP40_:
835 case _WEP104_:
836 rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
837 break;
838 case _TKIP_:
839 rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
840 break;
841 case _AES_:
842 rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
843 break;
844 default:
845 break;
846 }
847 }
848
849 return _SUCCESS;
850 }
851
rtw_make_wlanhdr(struct adapter * padapter,u8 * hdr,struct pkt_attrib * pattrib)852 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
853 {
854 u16 *qc;
855
856 struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
857 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
858 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
859 u8 qos_option = false;
860 signed int res = _SUCCESS;
861 __le16 *fctrl = &pwlanhdr->frame_control;
862
863 memset(hdr, 0, WLANHDR_OFFSET);
864
865 SetFrameSubType(fctrl, pattrib->subtype);
866
867 if (pattrib->subtype & WIFI_DATA_TYPE) {
868 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
869 /* to_ds = 1, fr_ds = 0; */
870
871 {
872 /* 1.Data transfer to AP */
873 /* 2.Arp pkt will relayed by AP */
874 SetToDs(fctrl);
875 memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), ETH_ALEN);
876 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
877 memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN);
878 }
879
880 if (pqospriv->qos_option)
881 qos_option = true;
882 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
883 /* to_ds = 0, fr_ds = 1; */
884 SetFrDs(fctrl);
885 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
886 memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN);
887 memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);
888
889 if (pattrib->qos_en)
890 qos_option = true;
891 } else if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
892 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
893 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
894 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
895 memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);
896
897 if (pattrib->qos_en)
898 qos_option = true;
899 } else {
900 res = _FAIL;
901 goto exit;
902 }
903
904 if (pattrib->mdata)
905 SetMData(fctrl);
906
907 if (pattrib->encrypt)
908 SetPrivacy(fctrl);
909
910 if (qos_option) {
911 qc = (unsigned short *)(hdr + pattrib->hdrlen - 2);
912
913 if (pattrib->priority)
914 SetPriority(qc, pattrib->priority);
915
916 SetEOSP(qc, pattrib->eosp);
917
918 SetAckpolicy(qc, pattrib->ack_policy);
919 }
920
921 /* TODO: fill HT Control Field */
922
923 /* Update Seq Num will be handled by f/w */
924 {
925 struct sta_info *psta;
926
927 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
928 if (pattrib->psta != psta)
929 return _FAIL;
930
931 if (!psta)
932 return _FAIL;
933
934 if (!(psta->state & _FW_LINKED))
935 return _FAIL;
936
937 if (psta) {
938 psta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
939 psta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
940 pattrib->seqnum = psta->sta_xmitpriv.txseq_tid[pattrib->priority];
941
942 SetSeqNum(hdr, pattrib->seqnum);
943
944 /* check if enable ampdu */
945 if (pattrib->ht_en && psta->htpriv.ampdu_enable)
946 if (psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
947 pattrib->ampdu_en = true;
948
949 /* re-check if enable ampdu by BA_starting_seqctrl */
950 if (pattrib->ampdu_en == true) {
951 u16 tx_seq;
952
953 tx_seq = psta->BA_starting_seqctrl[pattrib->priority & 0x0f];
954
955 /* check BA_starting_seqctrl */
956 if (SN_LESS(pattrib->seqnum, tx_seq)) {
957 pattrib->ampdu_en = false;/* AGG BK */
958 } else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {
959 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (tx_seq+1)&0xfff;
960
961 pattrib->ampdu_en = true;/* AGG EN */
962 } else {
963 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (pattrib->seqnum+1)&0xfff;
964 pattrib->ampdu_en = true;/* AGG EN */
965 }
966 }
967 }
968 }
969 } else {
970 }
971
972 exit:
973 return res;
974 }
975
rtw_txframes_pending(struct adapter * padapter)976 s32 rtw_txframes_pending(struct adapter *padapter)
977 {
978 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
979
980 return ((!list_empty(&pxmitpriv->be_pending.queue)) ||
981 (!list_empty(&pxmitpriv->bk_pending.queue)) ||
982 (!list_empty(&pxmitpriv->vi_pending.queue)) ||
983 (!list_empty(&pxmitpriv->vo_pending.queue)));
984 }
985
986 /*
987 * Calculate wlan 802.11 packet MAX size from pkt_attrib
988 * This function doesn't consider fragment case
989 */
rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib * pattrib)990 u32 rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib *pattrib)
991 {
992 u32 len = 0;
993
994 len = pattrib->hdrlen + pattrib->iv_len; /* WLAN Header and IV */
995 len += SNAP_SIZE + sizeof(u16); /* LLC */
996 len += pattrib->pktlen;
997 if (pattrib->encrypt == _TKIP_)
998 len += 8; /* MIC */
999 len += ((pattrib->bswenc) ? pattrib->icv_len : 0); /* ICV */
1000
1001 return len;
1002 }
1003
1004 /*
1005 * This sub-routine will perform all the following:
1006 * 1. remove 802.3 header.
1007 * 2. create wlan_header, based on the info in pxmitframe
1008 * 3. append sta's iv/ext-iv
1009 * 4. append LLC
1010 * 5. move frag chunk from pframe to pxmitframe->mem
1011 * 6. apply sw-encrypt, if necessary.
1012 */
rtw_xmitframe_coalesce(struct adapter * padapter,struct sk_buff * pkt,struct xmit_frame * pxmitframe)1013 s32 rtw_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, struct xmit_frame *pxmitframe)
1014 {
1015 struct pkt_file pktfile;
1016
1017 s32 frg_inx, frg_len, mpdu_len, llc_sz, mem_sz;
1018
1019 SIZE_PTR addr;
1020
1021 u8 *pframe, *mem_start;
1022 u8 hw_hdr_offset;
1023
1024 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1025
1026 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1027
1028 u8 *pbuf_start;
1029
1030 s32 bmcst = IS_MCAST(pattrib->ra);
1031 s32 res = _SUCCESS;
1032
1033 if (!pxmitframe->buf_addr)
1034 return _FAIL;
1035
1036 pbuf_start = pxmitframe->buf_addr;
1037
1038 hw_hdr_offset = TXDESC_OFFSET;
1039 mem_start = pbuf_start + hw_hdr_offset;
1040
1041 if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
1042 res = _FAIL;
1043 goto exit;
1044 }
1045
1046 _rtw_open_pktfile(pkt, &pktfile);
1047 _rtw_pktfile_read(&pktfile, NULL, pattrib->pkt_hdrlen);
1048
1049 frg_inx = 0;
1050 frg_len = pxmitpriv->frag_len - 4;/* 2346-4 = 2342 */
1051
1052 while (1) {
1053 llc_sz = 0;
1054
1055 mpdu_len = frg_len;
1056
1057 pframe = mem_start;
1058
1059 SetMFrag(mem_start);
1060
1061 pframe += pattrib->hdrlen;
1062 mpdu_len -= pattrib->hdrlen;
1063
1064 /* adding icv, if necessary... */
1065 if (pattrib->iv_len) {
1066 memcpy(pframe, pattrib->iv, pattrib->iv_len);
1067
1068 pframe += pattrib->iv_len;
1069
1070 mpdu_len -= pattrib->iv_len;
1071 }
1072
1073 if (frg_inx == 0) {
1074 llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
1075 pframe += llc_sz;
1076 mpdu_len -= llc_sz;
1077 }
1078
1079 if ((pattrib->icv_len > 0) && (pattrib->bswenc))
1080 mpdu_len -= pattrib->icv_len;
1081
1082 if (bmcst) {
1083 /* don't do fragment to broadcast/multicast packets */
1084 mem_sz = _rtw_pktfile_read(&pktfile, pframe, pattrib->pktlen);
1085 } else {
1086 mem_sz = _rtw_pktfile_read(&pktfile, pframe, mpdu_len);
1087 }
1088
1089 pframe += mem_sz;
1090
1091 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1092 memcpy(pframe, pattrib->icv, pattrib->icv_len);
1093 pframe += pattrib->icv_len;
1094 }
1095
1096 frg_inx++;
1097
1098 if (bmcst || (rtw_endofpktfile(&pktfile) == true)) {
1099 pattrib->nr_frags = frg_inx;
1100
1101 pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz:0) +
1102 ((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
1103
1104 ClearMFrag(mem_start);
1105
1106 break;
1107 }
1108
1109 addr = (SIZE_PTR)(pframe);
1110
1111 mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
1112 memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
1113 }
1114
1115 if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
1116 res = _FAIL;
1117 goto exit;
1118 }
1119
1120 xmitframe_swencrypt(padapter, pxmitframe);
1121
1122 if (bmcst == false)
1123 update_attrib_vcs_info(padapter, pxmitframe);
1124 else
1125 pattrib->vcs_mode = NONE_VCS;
1126
1127 exit:
1128 return res;
1129 }
1130
1131 /* broadcast or multicast management pkt use BIP, unicast management pkt use CCMP encryption */
rtw_mgmt_xmitframe_coalesce(struct adapter * padapter,struct sk_buff * pkt,struct xmit_frame * pxmitframe)1132 s32 rtw_mgmt_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, struct xmit_frame *pxmitframe)
1133 {
1134 u8 *pframe, *mem_start = NULL, *tmp_buf = NULL;
1135 u8 subtype;
1136 struct sta_info *psta = NULL;
1137 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1138 s32 bmcst = IS_MCAST(pattrib->ra);
1139 u8 *BIP_AAD = NULL;
1140 u8 *MGMT_body = NULL;
1141
1142 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1143 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1144 struct ieee80211_hdr *pwlanhdr;
1145 u8 MME[_MME_IE_LENGTH_];
1146 u32 ori_len;
1147
1148 mem_start = pframe = (u8 *)(pxmitframe->buf_addr) + TXDESC_OFFSET;
1149 pwlanhdr = (struct ieee80211_hdr *)pframe;
1150
1151 ori_len = BIP_AAD_SIZE+pattrib->pktlen;
1152 tmp_buf = BIP_AAD = rtw_zmalloc(ori_len);
1153 subtype = GetFrameSubType(pframe); /* bit(7)~bit(2) */
1154
1155 if (!BIP_AAD)
1156 return _FAIL;
1157
1158 spin_lock_bh(&padapter->security_key_mutex);
1159
1160 /* only support station mode */
1161 if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE) || !check_fwstate(pmlmepriv, _FW_LINKED))
1162 goto xmitframe_coalesce_success;
1163
1164 /* IGTK key is not install, it may not support 802.11w */
1165 if (!padapter->securitypriv.binstallBIPkey)
1166 goto xmitframe_coalesce_success;
1167
1168 /* station mode doesn't need TX BIP, just ready the code */
1169 if (bmcst) {
1170 int frame_body_len;
1171 u8 mic[16];
1172
1173 memset(MME, 0, 18);
1174
1175 /* other types doesn't need the BIP */
1176 if (GetFrameSubType(pframe) != WIFI_DEAUTH && GetFrameSubType(pframe) != WIFI_DISASSOC)
1177 goto xmitframe_coalesce_fail;
1178
1179 MGMT_body = pframe + sizeof(struct ieee80211_hdr_3addr);
1180 pframe += pattrib->pktlen;
1181
1182 /* octent 0 and 1 is key index , BIP keyid is 4 or 5, LSB only need octent 0 */
1183 MME[0] = padapter->securitypriv.dot11wBIPKeyid;
1184 /* copy packet number */
1185 memcpy(&MME[2], &pmlmeext->mgnt_80211w_IPN, 6);
1186 /* increase the packet number */
1187 pmlmeext->mgnt_80211w_IPN++;
1188
1189 /* add MME IE with MIC all zero, MME string doesn't include element id and length */
1190 pframe = rtw_set_ie(pframe, WLAN_EID_MMIE, 16,
1191 MME, &pattrib->pktlen);
1192 pattrib->last_txcmdsz = pattrib->pktlen;
1193 /* total frame length - header length */
1194 frame_body_len = pattrib->pktlen - sizeof(struct ieee80211_hdr_3addr);
1195
1196 /* conscruct AAD, copy frame control field */
1197 memcpy(BIP_AAD, &pwlanhdr->frame_control, 2);
1198 ClearRetry(BIP_AAD);
1199 ClearPwrMgt(BIP_AAD);
1200 ClearMData(BIP_AAD);
1201 /* conscruct AAD, copy address 1 to address 3 */
1202 memcpy(BIP_AAD+2, pwlanhdr->addr1, 18);
1203 /* copy management fram body */
1204 memcpy(BIP_AAD+BIP_AAD_SIZE, MGMT_body, frame_body_len);
1205 /* calculate mic */
1206 if (omac1_aes_128(padapter->securitypriv.dot11wBIPKey[padapter->securitypriv.dot11wBIPKeyid].skey
1207 , BIP_AAD, BIP_AAD_SIZE+frame_body_len, mic))
1208 goto xmitframe_coalesce_fail;
1209
1210 /* copy right BIP mic value, total is 128bits, we use the 0~63 bits */
1211 memcpy(pframe-8, mic, 8);
1212 } else { /* unicast mgmt frame TX */
1213 /* start to encrypt mgmt frame */
1214 if (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC ||
1215 subtype == WIFI_REASSOCREQ || subtype == WIFI_ACTION) {
1216 if (pattrib->psta)
1217 psta = pattrib->psta;
1218 else
1219 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
1220
1221 if (!psta)
1222 goto xmitframe_coalesce_fail;
1223
1224 if (!(psta->state & _FW_LINKED) || !pxmitframe->buf_addr)
1225 goto xmitframe_coalesce_fail;
1226
1227 /* according 802.11-2012 standard, these five types are not robust types */
1228 if (subtype == WIFI_ACTION &&
1229 (pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_PUBLIC ||
1230 pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_HT ||
1231 pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_UNPROTECTED_WNM ||
1232 pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_SELF_PROTECTED ||
1233 pframe[WLAN_HDR_A3_LEN] == RTW_WLAN_CATEGORY_P2P))
1234 goto xmitframe_coalesce_fail;
1235 /* before encrypt dump the management packet content */
1236 if (pattrib->encrypt > 0)
1237 memcpy(pattrib->dot118021x_UncstKey.skey, psta->dot118021x_UncstKey.skey, 16);
1238 /* bakeup original management packet */
1239 memcpy(tmp_buf, pframe, pattrib->pktlen);
1240 /* move to data portion */
1241 pframe += pattrib->hdrlen;
1242
1243 /* 802.11w unicast management packet must be _AES_ */
1244 pattrib->iv_len = 8;
1245 /* it's MIC of AES */
1246 pattrib->icv_len = 8;
1247
1248 switch (pattrib->encrypt) {
1249 case _AES_:
1250 /* set AES IV header */
1251 AES_IV(pattrib->iv, psta->dot11wtxpn, 0);
1252 break;
1253 default:
1254 goto xmitframe_coalesce_fail;
1255 }
1256 /* insert iv header into management frame */
1257 memcpy(pframe, pattrib->iv, pattrib->iv_len);
1258 pframe += pattrib->iv_len;
1259 /* copy mgmt data portion after CCMP header */
1260 memcpy(pframe, tmp_buf+pattrib->hdrlen, pattrib->pktlen-pattrib->hdrlen);
1261 /* move pframe to end of mgmt pkt */
1262 pframe += pattrib->pktlen-pattrib->hdrlen;
1263 /* add 8 bytes CCMP IV header to length */
1264 pattrib->pktlen += pattrib->iv_len;
1265 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1266 memcpy(pframe, pattrib->icv, pattrib->icv_len);
1267 pframe += pattrib->icv_len;
1268 }
1269 /* add 8 bytes MIC */
1270 pattrib->pktlen += pattrib->icv_len;
1271 /* set final tx command size */
1272 pattrib->last_txcmdsz = pattrib->pktlen;
1273
1274 /* set protected bit must be beofre SW encrypt */
1275 SetPrivacy(mem_start);
1276 /* software encrypt */
1277 xmitframe_swencrypt(padapter, pxmitframe);
1278 }
1279 }
1280
1281 xmitframe_coalesce_success:
1282 spin_unlock_bh(&padapter->security_key_mutex);
1283 kfree(BIP_AAD);
1284 return _SUCCESS;
1285
1286 xmitframe_coalesce_fail:
1287 spin_unlock_bh(&padapter->security_key_mutex);
1288 kfree(BIP_AAD);
1289 return _FAIL;
1290 }
1291
1292 /* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
1293 * IEEE LLC/SNAP header contains 8 octets
1294 * First 3 octets comprise the LLC portion
1295 * SNAP portion, 5 octets, is divided into two fields:
1296 *Organizationally Unique Identifier(OUI), 3 octets,
1297 *type, defined by that organization, 2 octets.
1298 */
rtw_put_snap(u8 * data,u16 h_proto)1299 s32 rtw_put_snap(u8 *data, u16 h_proto)
1300 {
1301 struct ieee80211_snap_hdr *snap;
1302 u8 *oui;
1303
1304 snap = (struct ieee80211_snap_hdr *)data;
1305 snap->dsap = 0xaa;
1306 snap->ssap = 0xaa;
1307 snap->ctrl = 0x03;
1308
1309 if (h_proto == 0x8137 || h_proto == 0x80f3)
1310 oui = P802_1H_OUI;
1311 else
1312 oui = RFC1042_OUI;
1313
1314 snap->oui[0] = oui[0];
1315 snap->oui[1] = oui[1];
1316 snap->oui[2] = oui[2];
1317
1318 *(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
1319
1320 return SNAP_SIZE + sizeof(u16);
1321 }
1322
rtw_update_protection(struct adapter * padapter,u8 * ie,uint ie_len)1323 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
1324 {
1325 uint protection;
1326 u8 *perp;
1327 signed int erp_len;
1328 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1329 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1330
1331 switch (pxmitpriv->vcs_setting) {
1332 case DISABLE_VCS:
1333 pxmitpriv->vcs = NONE_VCS;
1334 break;
1335
1336 case ENABLE_VCS:
1337 break;
1338
1339 case AUTO_VCS:
1340 default:
1341 perp = rtw_get_ie(ie, WLAN_EID_ERP_INFO, &erp_len, ie_len);
1342 if (!perp) {
1343 pxmitpriv->vcs = NONE_VCS;
1344 } else {
1345 protection = (*(perp + 2)) & BIT(1);
1346 if (protection) {
1347 if (pregistrypriv->vcs_type == RTS_CTS)
1348 pxmitpriv->vcs = RTS_CTS;
1349 else
1350 pxmitpriv->vcs = CTS_TO_SELF;
1351 } else {
1352 pxmitpriv->vcs = NONE_VCS;
1353 }
1354 }
1355
1356 break;
1357 }
1358 }
1359
rtw_count_tx_stats(struct adapter * padapter,struct xmit_frame * pxmitframe,int sz)1360 void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
1361 {
1362 struct sta_info *psta = NULL;
1363 struct stainfo_stats *pstats = NULL;
1364 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1365 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1366 u8 pkt_num = 1;
1367
1368 if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) {
1369 pkt_num = pxmitframe->agg_num;
1370
1371 pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pkt_num;
1372
1373 pxmitpriv->tx_pkts += pkt_num;
1374
1375 pxmitpriv->tx_bytes += sz;
1376
1377 psta = pxmitframe->attrib.psta;
1378 if (psta) {
1379 pstats = &psta->sta_stats;
1380
1381 pstats->tx_pkts += pkt_num;
1382
1383 pstats->tx_bytes += sz;
1384 }
1385 }
1386 }
1387
__rtw_alloc_cmd_xmitbuf(struct xmit_priv * pxmitpriv,enum cmdbuf_type buf_type)1388 static struct xmit_buf *__rtw_alloc_cmd_xmitbuf(struct xmit_priv *pxmitpriv,
1389 enum cmdbuf_type buf_type)
1390 {
1391 struct xmit_buf *pxmitbuf = NULL;
1392
1393 pxmitbuf = &pxmitpriv->pcmd_xmitbuf[buf_type];
1394 if (pxmitbuf) {
1395 pxmitbuf->priv_data = NULL;
1396
1397 pxmitbuf->len = 0;
1398 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
1399 pxmitbuf->agg_num = 0;
1400 pxmitbuf->pg_num = 0;
1401
1402 if (pxmitbuf->sctx)
1403 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1404 }
1405
1406 return pxmitbuf;
1407 }
1408
__rtw_alloc_cmdxmitframe(struct xmit_priv * pxmitpriv,enum cmdbuf_type buf_type)1409 struct xmit_frame *__rtw_alloc_cmdxmitframe(struct xmit_priv *pxmitpriv,
1410 enum cmdbuf_type buf_type)
1411 {
1412 struct xmit_frame *pcmdframe;
1413 struct xmit_buf *pxmitbuf;
1414
1415 pcmdframe = rtw_alloc_xmitframe(pxmitpriv);
1416 if (!pcmdframe)
1417 return NULL;
1418
1419 pxmitbuf = __rtw_alloc_cmd_xmitbuf(pxmitpriv, buf_type);
1420 if (!pxmitbuf) {
1421 rtw_free_xmitframe(pxmitpriv, pcmdframe);
1422 return NULL;
1423 }
1424
1425 pcmdframe->frame_tag = MGNT_FRAMETAG;
1426
1427 pcmdframe->pxmitbuf = pxmitbuf;
1428
1429 pcmdframe->buf_addr = pxmitbuf->pbuf;
1430
1431 pxmitbuf->priv_data = pcmdframe;
1432
1433 return pcmdframe;
1434 }
1435
rtw_alloc_xmitbuf_ext(struct xmit_priv * pxmitpriv)1436 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
1437 {
1438 unsigned long irqL;
1439 struct xmit_buf *pxmitbuf = NULL;
1440 struct list_head *plist, *phead;
1441 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1442
1443 spin_lock_irqsave(&pfree_queue->lock, irqL);
1444
1445 if (list_empty(&pfree_queue->queue)) {
1446 pxmitbuf = NULL;
1447 } else {
1448 phead = get_list_head(pfree_queue);
1449
1450 plist = get_next(phead);
1451
1452 pxmitbuf = container_of(plist, struct xmit_buf, list);
1453
1454 list_del_init(&pxmitbuf->list);
1455 }
1456
1457 if (pxmitbuf) {
1458 pxmitpriv->free_xmit_extbuf_cnt--;
1459
1460 pxmitbuf->priv_data = NULL;
1461
1462 pxmitbuf->len = 0;
1463 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
1464 pxmitbuf->agg_num = 1;
1465
1466 if (pxmitbuf->sctx)
1467 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1468 }
1469
1470 spin_unlock_irqrestore(&pfree_queue->lock, irqL);
1471
1472 return pxmitbuf;
1473 }
1474
rtw_free_xmitbuf_ext(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1475 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1476 {
1477 unsigned long irqL;
1478 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1479
1480 if (!pxmitbuf)
1481 return _FAIL;
1482
1483 spin_lock_irqsave(&pfree_queue->lock, irqL);
1484
1485 list_del_init(&pxmitbuf->list);
1486
1487 list_add_tail(&pxmitbuf->list, get_list_head(pfree_queue));
1488 pxmitpriv->free_xmit_extbuf_cnt++;
1489
1490 spin_unlock_irqrestore(&pfree_queue->lock, irqL);
1491
1492 return _SUCCESS;
1493 }
1494
rtw_alloc_xmitbuf(struct xmit_priv * pxmitpriv)1495 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
1496 {
1497 unsigned long irqL;
1498 struct xmit_buf *pxmitbuf = NULL;
1499 struct list_head *plist, *phead;
1500 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1501
1502 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL);
1503
1504 if (list_empty(&pfree_xmitbuf_queue->queue)) {
1505 pxmitbuf = NULL;
1506 } else {
1507 phead = get_list_head(pfree_xmitbuf_queue);
1508
1509 plist = get_next(phead);
1510
1511 pxmitbuf = container_of(plist, struct xmit_buf, list);
1512
1513 list_del_init(&pxmitbuf->list);
1514 }
1515
1516 if (pxmitbuf) {
1517 pxmitpriv->free_xmitbuf_cnt--;
1518
1519 pxmitbuf->priv_data = NULL;
1520
1521 pxmitbuf->len = 0;
1522 pxmitbuf->pdata = pxmitbuf->ptail = pxmitbuf->phead;
1523 pxmitbuf->agg_num = 0;
1524 pxmitbuf->pg_num = 0;
1525
1526 if (pxmitbuf->sctx)
1527 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1528 }
1529
1530 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL);
1531
1532 return pxmitbuf;
1533 }
1534
rtw_free_xmitbuf(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1535 s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1536 {
1537 unsigned long irqL;
1538 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1539
1540 if (!pxmitbuf)
1541 return _FAIL;
1542
1543 if (pxmitbuf->sctx)
1544 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_FREE);
1545
1546 if (pxmitbuf->buf_tag == XMITBUF_CMD) {
1547 } else if (pxmitbuf->buf_tag == XMITBUF_MGNT) {
1548 rtw_free_xmitbuf_ext(pxmitpriv, pxmitbuf);
1549 } else {
1550 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL);
1551
1552 list_del_init(&pxmitbuf->list);
1553
1554 list_add_tail(&pxmitbuf->list,
1555 get_list_head(pfree_xmitbuf_queue));
1556
1557 pxmitpriv->free_xmitbuf_cnt++;
1558 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irqL);
1559 }
1560 return _SUCCESS;
1561 }
1562
rtw_init_xmitframe(struct xmit_frame * pxframe)1563 static void rtw_init_xmitframe(struct xmit_frame *pxframe)
1564 {
1565 if (pxframe) { /* default value setting */
1566 pxframe->buf_addr = NULL;
1567 pxframe->pxmitbuf = NULL;
1568
1569 memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib));
1570
1571 pxframe->frame_tag = DATA_FRAMETAG;
1572
1573 pxframe->pg_num = 1;
1574 pxframe->agg_num = 1;
1575 pxframe->ack_report = 0;
1576 }
1577 }
1578
1579 /*
1580 * Calling context:
1581 * 1. OS_TXENTRY
1582 * 2. RXENTRY (rx_thread or RX_ISR/RX_CallBack)
1583 *
1584 * If we turn on USE_RXTHREAD, then, no need for critical section.
1585 * Otherwise, we must use _enter/_exit critical to protect free_xmit_queue...
1586 *
1587 * Must be very, very cautious...
1588 */
rtw_alloc_xmitframe(struct xmit_priv * pxmitpriv)1589 struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)/* _queue *pfree_xmit_queue) */
1590 {
1591 /*
1592 * Please remember to use all the osdep_service api,
1593 * and lock/unlock or _enter/_exit critical to protect
1594 * pfree_xmit_queue
1595 */
1596
1597 struct xmit_frame *pxframe = NULL;
1598 struct list_head *plist, *phead;
1599 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1600
1601 spin_lock_bh(&pfree_xmit_queue->lock);
1602
1603 if (list_empty(&pfree_xmit_queue->queue)) {
1604 pxframe = NULL;
1605 } else {
1606 phead = get_list_head(pfree_xmit_queue);
1607
1608 plist = get_next(phead);
1609
1610 pxframe = container_of(plist, struct xmit_frame, list);
1611
1612 list_del_init(&pxframe->list);
1613 pxmitpriv->free_xmitframe_cnt--;
1614 }
1615
1616 spin_unlock_bh(&pfree_xmit_queue->lock);
1617
1618 rtw_init_xmitframe(pxframe);
1619 return pxframe;
1620 }
1621
rtw_alloc_xmitframe_ext(struct xmit_priv * pxmitpriv)1622 struct xmit_frame *rtw_alloc_xmitframe_ext(struct xmit_priv *pxmitpriv)
1623 {
1624 struct xmit_frame *pxframe = NULL;
1625 struct list_head *plist, *phead;
1626 struct __queue *queue = &pxmitpriv->free_xframe_ext_queue;
1627
1628 spin_lock_bh(&queue->lock);
1629
1630 if (list_empty(&queue->queue)) {
1631 pxframe = NULL;
1632 } else {
1633 phead = get_list_head(queue);
1634 plist = get_next(phead);
1635 pxframe = container_of(plist, struct xmit_frame, list);
1636
1637 list_del_init(&pxframe->list);
1638 pxmitpriv->free_xframe_ext_cnt--;
1639 }
1640
1641 spin_unlock_bh(&queue->lock);
1642
1643 rtw_init_xmitframe(pxframe);
1644
1645 return pxframe;
1646 }
1647
rtw_alloc_xmitframe_once(struct xmit_priv * pxmitpriv)1648 struct xmit_frame *rtw_alloc_xmitframe_once(struct xmit_priv *pxmitpriv)
1649 {
1650 struct xmit_frame *pxframe = NULL;
1651 u8 *alloc_addr;
1652
1653 alloc_addr = rtw_zmalloc(sizeof(struct xmit_frame) + 4);
1654
1655 if (!alloc_addr)
1656 goto exit;
1657
1658 pxframe = (struct xmit_frame *)N_BYTE_ALIGMENT((SIZE_PTR)(alloc_addr), 4);
1659 pxframe->alloc_addr = alloc_addr;
1660
1661 pxframe->padapter = pxmitpriv->adapter;
1662 pxframe->frame_tag = NULL_FRAMETAG;
1663
1664 pxframe->pkt = NULL;
1665
1666 pxframe->buf_addr = NULL;
1667 pxframe->pxmitbuf = NULL;
1668
1669 rtw_init_xmitframe(pxframe);
1670
1671 exit:
1672 return pxframe;
1673 }
1674
rtw_free_xmitframe(struct xmit_priv * pxmitpriv,struct xmit_frame * pxmitframe)1675 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
1676 {
1677 struct __queue *queue = NULL;
1678 struct adapter *padapter = pxmitpriv->adapter;
1679 struct sk_buff *pndis_pkt = NULL;
1680
1681 if (!pxmitframe)
1682 goto exit;
1683
1684 if (pxmitframe->pkt) {
1685 pndis_pkt = pxmitframe->pkt;
1686 pxmitframe->pkt = NULL;
1687 }
1688
1689 if (pxmitframe->alloc_addr) {
1690 kfree(pxmitframe->alloc_addr);
1691 goto check_pkt_complete;
1692 }
1693
1694 if (pxmitframe->ext_tag == 0)
1695 queue = &pxmitpriv->free_xmit_queue;
1696 else if (pxmitframe->ext_tag == 1)
1697 queue = &pxmitpriv->free_xframe_ext_queue;
1698 else {
1699 }
1700
1701 spin_lock_bh(&queue->lock);
1702
1703 list_del_init(&pxmitframe->list);
1704 list_add_tail(&pxmitframe->list, get_list_head(queue));
1705 if (pxmitframe->ext_tag == 0)
1706 pxmitpriv->free_xmitframe_cnt++;
1707 else if (pxmitframe->ext_tag == 1)
1708 pxmitpriv->free_xframe_ext_cnt++;
1709
1710 spin_unlock_bh(&queue->lock);
1711
1712 check_pkt_complete:
1713
1714 if (pndis_pkt)
1715 rtw_os_pkt_complete(padapter, pndis_pkt);
1716
1717 exit:
1718 return _SUCCESS;
1719 }
1720
rtw_free_xmitframe_queue(struct xmit_priv * pxmitpriv,struct __queue * pframequeue)1721 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
1722 {
1723 struct list_head *plist, *phead, *tmp;
1724 struct xmit_frame *pxmitframe;
1725
1726 spin_lock_bh(&pframequeue->lock);
1727
1728 phead = get_list_head(pframequeue);
1729 list_for_each_safe(plist, tmp, phead) {
1730 pxmitframe = list_entry(plist, struct xmit_frame, list);
1731
1732 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1733 }
1734 spin_unlock_bh(&pframequeue->lock);
1735 }
1736
rtw_xmitframe_enqueue(struct adapter * padapter,struct xmit_frame * pxmitframe)1737 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
1738 {
1739 if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL)
1740 return _FAIL;
1741
1742 return _SUCCESS;
1743 }
1744
rtw_get_sta_pending(struct adapter * padapter,struct sta_info * psta,signed int up,u8 * ac)1745 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *psta, signed int up, u8 *ac)
1746 {
1747 struct tx_servq *ptxservq = NULL;
1748
1749 switch (up) {
1750 case 1:
1751 case 2:
1752 ptxservq = &psta->sta_xmitpriv.bk_q;
1753 *(ac) = 3;
1754 break;
1755
1756 case 4:
1757 case 5:
1758 ptxservq = &psta->sta_xmitpriv.vi_q;
1759 *(ac) = 1;
1760 break;
1761
1762 case 6:
1763 case 7:
1764 ptxservq = &psta->sta_xmitpriv.vo_q;
1765 *(ac) = 0;
1766 break;
1767
1768 case 0:
1769 case 3:
1770 default:
1771 ptxservq = &psta->sta_xmitpriv.be_q;
1772 *(ac) = 2;
1773 break;
1774 }
1775
1776 return ptxservq;
1777 }
1778
1779 /*
1780 * Will enqueue pxmitframe to the proper queue,
1781 * and indicate it to xx_pending list.....
1782 */
rtw_xmit_classifier(struct adapter * padapter,struct xmit_frame * pxmitframe)1783 s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
1784 {
1785 u8 ac_index;
1786 struct sta_info *psta;
1787 struct tx_servq *ptxservq;
1788 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1789 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1790 signed int res = _SUCCESS;
1791
1792 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
1793 if (pattrib->psta != psta)
1794 return _FAIL;
1795
1796 if (!psta) {
1797 res = _FAIL;
1798 goto exit;
1799 }
1800
1801 if (!(psta->state & _FW_LINKED))
1802 return _FAIL;
1803
1804 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1805
1806 if (list_empty(&ptxservq->tx_pending))
1807 list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
1808
1809 list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
1810 ptxservq->qcnt++;
1811 phwxmits[ac_index].accnt++;
1812
1813 exit:
1814
1815 return res;
1816 }
1817
rtw_alloc_hwxmits(struct adapter * padapter)1818 s32 rtw_alloc_hwxmits(struct adapter *padapter)
1819 {
1820 struct hw_xmit *hwxmits;
1821 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1822
1823 pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
1824
1825 pxmitpriv->hwxmits = NULL;
1826
1827 pxmitpriv->hwxmits = rtw_zmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry);
1828
1829 if (!pxmitpriv->hwxmits)
1830 return _FAIL;
1831
1832 hwxmits = pxmitpriv->hwxmits;
1833
1834 if (pxmitpriv->hwxmit_entry == 5) {
1835 hwxmits[0] .sta_queue = &pxmitpriv->bm_pending;
1836
1837 hwxmits[1] .sta_queue = &pxmitpriv->vo_pending;
1838
1839 hwxmits[2] .sta_queue = &pxmitpriv->vi_pending;
1840
1841 hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1842
1843 hwxmits[4] .sta_queue = &pxmitpriv->be_pending;
1844 } else if (pxmitpriv->hwxmit_entry == 4) {
1845 hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
1846
1847 hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
1848
1849 hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
1850
1851 hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1852 } else {
1853 }
1854
1855 return _SUCCESS;
1856 }
1857
rtw_free_hwxmits(struct adapter * padapter)1858 void rtw_free_hwxmits(struct adapter *padapter)
1859 {
1860 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1861
1862 kfree(pxmitpriv->hwxmits);
1863 }
1864
rtw_init_hwxmits(struct hw_xmit * phwxmit,signed int entry)1865 void rtw_init_hwxmits(struct hw_xmit *phwxmit, signed int entry)
1866 {
1867 signed int i;
1868
1869 for (i = 0; i < entry; i++, phwxmit++)
1870 phwxmit->accnt = 0;
1871 }
1872
rtw_get_ff_hwaddr(struct xmit_frame * pxmitframe)1873 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
1874 {
1875 u32 addr;
1876 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1877
1878 switch (pattrib->qsel) {
1879 case 0:
1880 case 3:
1881 addr = BE_QUEUE_INX;
1882 break;
1883 case 1:
1884 case 2:
1885 addr = BK_QUEUE_INX;
1886 break;
1887 case 4:
1888 case 5:
1889 addr = VI_QUEUE_INX;
1890 break;
1891 case 6:
1892 case 7:
1893 addr = VO_QUEUE_INX;
1894 break;
1895 case 0x10:
1896 addr = BCN_QUEUE_INX;
1897 break;
1898 case 0x11:/* BC/MC in PS (HIQ) */
1899 addr = HIGH_QUEUE_INX;
1900 break;
1901 case 0x12:
1902 default:
1903 addr = MGT_QUEUE_INX;
1904 break;
1905 }
1906
1907 return addr;
1908 }
1909
do_queue_select(struct adapter * padapter,struct pkt_attrib * pattrib)1910 static void do_queue_select(struct adapter *padapter, struct pkt_attrib *pattrib)
1911 {
1912 u8 qsel;
1913
1914 qsel = pattrib->priority;
1915
1916 pattrib->qsel = qsel;
1917 }
1918
1919 /*
1920 * The main transmit(tx) entry
1921 *
1922 * Return
1923 *1 enqueue
1924 *0 success, hardware will handle this xmit frame(packet)
1925 *<0 fail
1926 */
rtw_xmit(struct adapter * padapter,struct sk_buff ** ppkt)1927 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **ppkt)
1928 {
1929 static unsigned long start;
1930 static u32 drop_cnt;
1931
1932 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1933 struct xmit_frame *pxmitframe = NULL;
1934
1935 s32 res;
1936
1937 if (start == 0)
1938 start = jiffies;
1939
1940 pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
1941
1942 if (jiffies_to_msecs(jiffies - start) > 2000) {
1943 start = jiffies;
1944 drop_cnt = 0;
1945 }
1946
1947 if (!pxmitframe) {
1948 drop_cnt++;
1949 return -1;
1950 }
1951
1952 res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
1953
1954 if (res == _FAIL) {
1955 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1956 return -1;
1957 }
1958 pxmitframe->pkt = *ppkt;
1959
1960 do_queue_select(padapter, &pxmitframe->attrib);
1961
1962 spin_lock_bh(&pxmitpriv->lock);
1963 if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe) == true) {
1964 spin_unlock_bh(&pxmitpriv->lock);
1965 return 1;
1966 }
1967 spin_unlock_bh(&pxmitpriv->lock);
1968
1969 /* pre_xmitframe */
1970 if (rtw_hal_xmit(padapter, pxmitframe) == false)
1971 return 1;
1972
1973 return 0;
1974 }
1975
1976 #define RTW_HIQ_FILTER_ALLOW_ALL 0
1977 #define RTW_HIQ_FILTER_ALLOW_SPECIAL 1
1978 #define RTW_HIQ_FILTER_DENY_ALL 2
1979
xmitframe_hiq_filter(struct xmit_frame * xmitframe)1980 inline bool xmitframe_hiq_filter(struct xmit_frame *xmitframe)
1981 {
1982 bool allow = false;
1983 struct adapter *adapter = xmitframe->padapter;
1984 struct registry_priv *registry = &adapter->registrypriv;
1985
1986 if (registry->hiq_filter == RTW_HIQ_FILTER_ALLOW_SPECIAL) {
1987 struct pkt_attrib *attrib = &xmitframe->attrib;
1988
1989 if (attrib->ether_type == 0x0806 ||
1990 attrib->ether_type == 0x888e ||
1991 attrib->dhcp_pkt
1992 )
1993 allow = true;
1994
1995 } else if (registry->hiq_filter == RTW_HIQ_FILTER_ALLOW_ALL)
1996 allow = true;
1997 else if (registry->hiq_filter == RTW_HIQ_FILTER_DENY_ALL) {
1998 } else
1999 rtw_warn_on(1);
2000
2001 return allow;
2002 }
2003
xmitframe_enqueue_for_sleeping_sta(struct adapter * padapter,struct xmit_frame * pxmitframe)2004 signed int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
2005 {
2006 signed int ret = false;
2007 struct sta_info *psta = NULL;
2008 struct sta_priv *pstapriv = &padapter->stapriv;
2009 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2010 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2011 signed int bmcst = IS_MCAST(pattrib->ra);
2012 bool update_tim = false;
2013
2014 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == false)
2015 return ret;
2016 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2017 if (pattrib->psta != psta)
2018 return false;
2019
2020 if (!psta)
2021 return false;
2022
2023 if (!(psta->state & _FW_LINKED))
2024 return false;
2025
2026 if (pattrib->triggered == 1) {
2027 if (bmcst && xmitframe_hiq_filter(pxmitframe))
2028 pattrib->qsel = 0x11;/* HIQ */
2029
2030 return ret;
2031 }
2032
2033 if (bmcst) {
2034 spin_lock_bh(&psta->sleep_q.lock);
2035
2036 if (pstapriv->sta_dz_bitmap) { /* if anyone sta is in ps mode */
2037 /* pattrib->qsel = 0x11;HIQ */
2038
2039 list_del_init(&pxmitframe->list);
2040
2041 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
2042
2043 psta->sleepq_len++;
2044
2045 if (!(pstapriv->tim_bitmap & BIT(0)))
2046 update_tim = true;
2047
2048 pstapriv->tim_bitmap |= BIT(0);
2049 pstapriv->sta_dz_bitmap |= BIT(0);
2050
2051 if (update_tim)
2052 update_beacon(padapter, WLAN_EID_TIM, NULL, true);
2053 else
2054 chk_bmc_sleepq_cmd(padapter);
2055
2056 ret = true;
2057 }
2058
2059 spin_unlock_bh(&psta->sleep_q.lock);
2060
2061 return ret;
2062 }
2063
2064 spin_lock_bh(&psta->sleep_q.lock);
2065
2066 if (psta->state&WIFI_SLEEP_STATE) {
2067 u8 wmmps_ac = 0;
2068
2069 if (pstapriv->sta_dz_bitmap & BIT(psta->aid)) {
2070 list_del_init(&pxmitframe->list);
2071
2072 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
2073
2074 psta->sleepq_len++;
2075
2076 switch (pattrib->priority) {
2077 case 1:
2078 case 2:
2079 wmmps_ac = psta->uapsd_bk&BIT(0);
2080 break;
2081 case 4:
2082 case 5:
2083 wmmps_ac = psta->uapsd_vi&BIT(0);
2084 break;
2085 case 6:
2086 case 7:
2087 wmmps_ac = psta->uapsd_vo&BIT(0);
2088 break;
2089 case 0:
2090 case 3:
2091 default:
2092 wmmps_ac = psta->uapsd_be&BIT(0);
2093 break;
2094 }
2095
2096 if (wmmps_ac)
2097 psta->sleepq_ac_len++;
2098
2099 if (((psta->has_legacy_ac) && (!wmmps_ac)) || ((!psta->has_legacy_ac) && (wmmps_ac))) {
2100 if (!(pstapriv->tim_bitmap & BIT(psta->aid)))
2101 update_tim = true;
2102
2103 pstapriv->tim_bitmap |= BIT(psta->aid);
2104
2105 if (update_tim)
2106 /* update BCN for TIM IE */
2107 update_beacon(padapter, WLAN_EID_TIM, NULL, true);
2108 }
2109
2110 ret = true;
2111 }
2112 }
2113
2114 spin_unlock_bh(&psta->sleep_q.lock);
2115
2116 return ret;
2117 }
2118
dequeue_xmitframes_to_sleeping_queue(struct adapter * padapter,struct sta_info * psta,struct __queue * pframequeue)2119 static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
2120 {
2121 signed int ret;
2122 struct list_head *plist, *phead, *tmp;
2123 u8 ac_index;
2124 struct tx_servq *ptxservq;
2125 struct pkt_attrib *pattrib;
2126 struct xmit_frame *pxmitframe;
2127 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
2128
2129 phead = get_list_head(pframequeue);
2130 list_for_each_safe(plist, tmp, phead) {
2131 pxmitframe = list_entry(plist, struct xmit_frame, list);
2132
2133 pattrib = &pxmitframe->attrib;
2134
2135 pattrib->triggered = 0;
2136
2137 ret = xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
2138
2139 if (true == ret) {
2140 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
2141
2142 ptxservq->qcnt--;
2143 phwxmits[ac_index].accnt--;
2144 } else {
2145 }
2146 }
2147 }
2148
stop_sta_xmit(struct adapter * padapter,struct sta_info * psta)2149 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
2150 {
2151 struct sta_info *psta_bmc;
2152 struct sta_xmit_priv *pstaxmitpriv;
2153 struct sta_priv *pstapriv = &padapter->stapriv;
2154 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
2155
2156 pstaxmitpriv = &psta->sta_xmitpriv;
2157
2158 /* for BC/MC Frames */
2159 psta_bmc = rtw_get_bcmc_stainfo(padapter);
2160
2161 spin_lock_bh(&pxmitpriv->lock);
2162
2163 psta->state |= WIFI_SLEEP_STATE;
2164
2165 pstapriv->sta_dz_bitmap |= BIT(psta->aid);
2166
2167 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
2168 list_del_init(&pstaxmitpriv->vo_q.tx_pending);
2169
2170 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
2171 list_del_init(&pstaxmitpriv->vi_q.tx_pending);
2172
2173 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
2174 list_del_init(&pstaxmitpriv->be_q.tx_pending);
2175
2176 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
2177 list_del_init(&pstaxmitpriv->bk_q.tx_pending);
2178
2179 /* for BC/MC Frames */
2180 pstaxmitpriv = &psta_bmc->sta_xmitpriv;
2181 dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
2182 list_del_init(&pstaxmitpriv->be_q.tx_pending);
2183
2184 spin_unlock_bh(&pxmitpriv->lock);
2185 }
2186
wakeup_sta_to_xmit(struct adapter * padapter,struct sta_info * psta)2187 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
2188 {
2189 u8 update_mask = 0, wmmps_ac = 0;
2190 struct sta_info *psta_bmc;
2191 struct list_head *xmitframe_plist, *xmitframe_phead, *tmp;
2192 struct xmit_frame *pxmitframe = NULL;
2193 struct sta_priv *pstapriv = &padapter->stapriv;
2194 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
2195
2196 psta_bmc = rtw_get_bcmc_stainfo(padapter);
2197
2198 spin_lock_bh(&pxmitpriv->lock);
2199
2200 xmitframe_phead = get_list_head(&psta->sleep_q);
2201 list_for_each_safe(xmitframe_plist, tmp, xmitframe_phead) {
2202 pxmitframe = list_entry(xmitframe_plist, struct xmit_frame,
2203 list);
2204
2205 list_del_init(&pxmitframe->list);
2206
2207 switch (pxmitframe->attrib.priority) {
2208 case 1:
2209 case 2:
2210 wmmps_ac = psta->uapsd_bk&BIT(1);
2211 break;
2212 case 4:
2213 case 5:
2214 wmmps_ac = psta->uapsd_vi&BIT(1);
2215 break;
2216 case 6:
2217 case 7:
2218 wmmps_ac = psta->uapsd_vo&BIT(1);
2219 break;
2220 case 0:
2221 case 3:
2222 default:
2223 wmmps_ac = psta->uapsd_be&BIT(1);
2224 break;
2225 }
2226
2227 psta->sleepq_len--;
2228 if (psta->sleepq_len > 0)
2229 pxmitframe->attrib.mdata = 1;
2230 else
2231 pxmitframe->attrib.mdata = 0;
2232
2233 if (wmmps_ac) {
2234 psta->sleepq_ac_len--;
2235 if (psta->sleepq_ac_len > 0) {
2236 pxmitframe->attrib.mdata = 1;
2237 pxmitframe->attrib.eosp = 0;
2238 } else {
2239 pxmitframe->attrib.mdata = 0;
2240 pxmitframe->attrib.eosp = 1;
2241 }
2242 }
2243
2244 pxmitframe->attrib.triggered = 1;
2245
2246 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
2247 }
2248
2249 if (psta->sleepq_len == 0) {
2250 if (pstapriv->tim_bitmap & BIT(psta->aid))
2251 update_mask = BIT(0);
2252
2253 pstapriv->tim_bitmap &= ~BIT(psta->aid);
2254
2255 if (psta->state&WIFI_SLEEP_STATE)
2256 psta->state ^= WIFI_SLEEP_STATE;
2257
2258 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
2259 psta->expire_to = pstapriv->expire_to;
2260 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
2261 }
2262
2263 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
2264 }
2265
2266 /* for BC/MC Frames */
2267 if (!psta_bmc)
2268 goto _exit;
2269
2270 if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) { /* no any sta in ps mode */
2271 xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
2272 list_for_each_safe(xmitframe_plist, tmp, xmitframe_phead) {
2273 pxmitframe = list_entry(xmitframe_plist,
2274 struct xmit_frame, list);
2275
2276 list_del_init(&pxmitframe->list);
2277
2278 psta_bmc->sleepq_len--;
2279 if (psta_bmc->sleepq_len > 0)
2280 pxmitframe->attrib.mdata = 1;
2281 else
2282 pxmitframe->attrib.mdata = 0;
2283
2284 pxmitframe->attrib.triggered = 1;
2285 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
2286 }
2287
2288 if (psta_bmc->sleepq_len == 0) {
2289 if (pstapriv->tim_bitmap & BIT(0))
2290 update_mask |= BIT(1);
2291
2292 pstapriv->tim_bitmap &= ~BIT(0);
2293 pstapriv->sta_dz_bitmap &= ~BIT(0);
2294 }
2295 }
2296
2297 _exit:
2298
2299 spin_unlock_bh(&pxmitpriv->lock);
2300
2301 if (update_mask)
2302 update_beacon(padapter, WLAN_EID_TIM, NULL, true);
2303 }
2304
xmit_delivery_enabled_frames(struct adapter * padapter,struct sta_info * psta)2305 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
2306 {
2307 u8 wmmps_ac = 0;
2308 struct list_head *xmitframe_plist, *xmitframe_phead, *tmp;
2309 struct xmit_frame *pxmitframe = NULL;
2310 struct sta_priv *pstapriv = &padapter->stapriv;
2311 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
2312
2313 spin_lock_bh(&pxmitpriv->lock);
2314
2315 xmitframe_phead = get_list_head(&psta->sleep_q);
2316 list_for_each_safe(xmitframe_plist, tmp, xmitframe_phead) {
2317 pxmitframe = list_entry(xmitframe_plist, struct xmit_frame,
2318 list);
2319
2320 switch (pxmitframe->attrib.priority) {
2321 case 1:
2322 case 2:
2323 wmmps_ac = psta->uapsd_bk&BIT(1);
2324 break;
2325 case 4:
2326 case 5:
2327 wmmps_ac = psta->uapsd_vi&BIT(1);
2328 break;
2329 case 6:
2330 case 7:
2331 wmmps_ac = psta->uapsd_vo&BIT(1);
2332 break;
2333 case 0:
2334 case 3:
2335 default:
2336 wmmps_ac = psta->uapsd_be&BIT(1);
2337 break;
2338 }
2339
2340 if (!wmmps_ac)
2341 continue;
2342
2343 list_del_init(&pxmitframe->list);
2344
2345 psta->sleepq_len--;
2346 psta->sleepq_ac_len--;
2347
2348 if (psta->sleepq_ac_len > 0) {
2349 pxmitframe->attrib.mdata = 1;
2350 pxmitframe->attrib.eosp = 0;
2351 } else {
2352 pxmitframe->attrib.mdata = 0;
2353 pxmitframe->attrib.eosp = 1;
2354 }
2355
2356 pxmitframe->attrib.triggered = 1;
2357 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
2358
2359 if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
2360 pstapriv->tim_bitmap &= ~BIT(psta->aid);
2361
2362 update_beacon(padapter, WLAN_EID_TIM, NULL, true);
2363 }
2364 }
2365
2366 spin_unlock_bh(&pxmitpriv->lock);
2367 }
2368
enqueue_pending_xmitbuf(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)2369 void enqueue_pending_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
2370 {
2371 struct __queue *pqueue;
2372 struct adapter *pri_adapter = pxmitpriv->adapter;
2373
2374 pqueue = &pxmitpriv->pending_xmitbuf_queue;
2375
2376 spin_lock_bh(&pqueue->lock);
2377 list_del_init(&pxmitbuf->list);
2378 list_add_tail(&pxmitbuf->list, get_list_head(pqueue));
2379 spin_unlock_bh(&pqueue->lock);
2380
2381 complete(&pri_adapter->xmitpriv.xmit_comp);
2382 }
2383
enqueue_pending_xmitbuf_to_head(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)2384 void enqueue_pending_xmitbuf_to_head(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
2385 {
2386 struct __queue *pqueue;
2387
2388 pqueue = &pxmitpriv->pending_xmitbuf_queue;
2389
2390 spin_lock_bh(&pqueue->lock);
2391 list_del_init(&pxmitbuf->list);
2392 list_add(&pxmitbuf->list, get_list_head(pqueue));
2393 spin_unlock_bh(&pqueue->lock);
2394 }
2395
dequeue_pending_xmitbuf(struct xmit_priv * pxmitpriv)2396 struct xmit_buf *dequeue_pending_xmitbuf(struct xmit_priv *pxmitpriv)
2397 {
2398 struct xmit_buf *pxmitbuf;
2399 struct __queue *pqueue;
2400
2401 pxmitbuf = NULL;
2402 pqueue = &pxmitpriv->pending_xmitbuf_queue;
2403
2404 spin_lock_bh(&pqueue->lock);
2405
2406 if (!list_empty(&pqueue->queue)) {
2407 struct list_head *plist, *phead;
2408
2409 phead = get_list_head(pqueue);
2410 plist = get_next(phead);
2411 pxmitbuf = container_of(plist, struct xmit_buf, list);
2412 list_del_init(&pxmitbuf->list);
2413 }
2414
2415 spin_unlock_bh(&pqueue->lock);
2416
2417 return pxmitbuf;
2418 }
2419
dequeue_pending_xmitbuf_under_survey(struct xmit_priv * pxmitpriv)2420 struct xmit_buf *dequeue_pending_xmitbuf_under_survey(struct xmit_priv *pxmitpriv)
2421 {
2422 struct xmit_buf *pxmitbuf;
2423 struct __queue *pqueue;
2424
2425 pxmitbuf = NULL;
2426 pqueue = &pxmitpriv->pending_xmitbuf_queue;
2427
2428 spin_lock_bh(&pqueue->lock);
2429
2430 if (!list_empty(&pqueue->queue)) {
2431 struct list_head *plist, *phead;
2432 u8 type;
2433
2434 phead = get_list_head(pqueue);
2435 plist = phead;
2436 do {
2437 plist = get_next(plist);
2438 if (plist == phead)
2439 break;
2440
2441 pxmitbuf = container_of(plist, struct xmit_buf, list);
2442
2443 type = GetFrameSubType(pxmitbuf->pbuf + TXDESC_OFFSET);
2444
2445 if ((type == WIFI_PROBEREQ) ||
2446 (type == WIFI_DATA_NULL) ||
2447 (type == WIFI_QOS_DATA_NULL)) {
2448 list_del_init(&pxmitbuf->list);
2449 break;
2450 }
2451 pxmitbuf = NULL;
2452 } while (1);
2453 }
2454
2455 spin_unlock_bh(&pqueue->lock);
2456
2457 return pxmitbuf;
2458 }
2459
check_pending_xmitbuf(struct xmit_priv * pxmitpriv)2460 signed int check_pending_xmitbuf(struct xmit_priv *pxmitpriv)
2461 {
2462 struct __queue *pqueue;
2463 signed int ret = false;
2464
2465 pqueue = &pxmitpriv->pending_xmitbuf_queue;
2466
2467 spin_lock_bh(&pqueue->lock);
2468
2469 if (!list_empty(&pqueue->queue))
2470 ret = true;
2471
2472 spin_unlock_bh(&pqueue->lock);
2473
2474 return ret;
2475 }
2476
rtw_xmit_thread(void * context)2477 int rtw_xmit_thread(void *context)
2478 {
2479 s32 err;
2480 struct adapter *padapter;
2481
2482 err = _SUCCESS;
2483 padapter = context;
2484
2485 thread_enter("RTW_XMIT_THREAD");
2486
2487 do {
2488 err = rtw_hal_xmit_thread_handler(padapter);
2489 flush_signals_thread();
2490 } while (err == _SUCCESS);
2491
2492 complete(&padapter->xmitpriv.terminate_xmitthread_comp);
2493
2494 thread_exit();
2495 }
2496
rtw_sctx_init(struct submit_ctx * sctx,int timeout_ms)2497 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
2498 {
2499 sctx->timeout_ms = timeout_ms;
2500 sctx->submit_time = jiffies;
2501 init_completion(&sctx->done);
2502 sctx->status = RTW_SCTX_SUBMITTED;
2503 }
2504
rtw_sctx_wait(struct submit_ctx * sctx)2505 int rtw_sctx_wait(struct submit_ctx *sctx)
2506 {
2507 int ret = _FAIL;
2508 unsigned long expire;
2509 int status = 0;
2510
2511 expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
2512 if (!wait_for_completion_timeout(&sctx->done, expire))
2513 /* timeout, do something?? */
2514 status = RTW_SCTX_DONE_TIMEOUT;
2515 else
2516 status = sctx->status;
2517
2518 if (status == RTW_SCTX_DONE_SUCCESS)
2519 ret = _SUCCESS;
2520
2521 return ret;
2522 }
2523
rtw_sctx_done_err(struct submit_ctx ** sctx,int status)2524 void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
2525 {
2526 if (*sctx) {
2527 (*sctx)->status = status;
2528 complete(&((*sctx)->done));
2529 *sctx = NULL;
2530 }
2531 }
2532
rtw_sctx_done(struct submit_ctx ** sctx)2533 void rtw_sctx_done(struct submit_ctx **sctx)
2534 {
2535 rtw_sctx_done_err(sctx, RTW_SCTX_DONE_SUCCESS);
2536 }
2537
rtw_ack_tx_wait(struct xmit_priv * pxmitpriv,u32 timeout_ms)2538 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
2539 {
2540 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2541
2542 pack_tx_ops->submit_time = jiffies;
2543 pack_tx_ops->timeout_ms = timeout_ms;
2544 pack_tx_ops->status = RTW_SCTX_SUBMITTED;
2545
2546 return rtw_sctx_wait(pack_tx_ops);
2547 }
2548
rtw_ack_tx_done(struct xmit_priv * pxmitpriv,int status)2549 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status)
2550 {
2551 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2552
2553 if (pxmitpriv->ack_tx)
2554 rtw_sctx_done_err(&pack_tx_ops, status);
2555 }
2556
