1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTW_XMIT_C_
8
9 #include <osdep_service.h>
10 #include <drv_types.h>
11 #include <mon.h>
12 #include <wifi.h>
13 #include <osdep_intf.h>
14 #include <linux/vmalloc.h>
15
16 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
17 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
18
_init_txservq(struct tx_servq * ptxservq)19 static void _init_txservq(struct tx_servq *ptxservq)
20 {
21 INIT_LIST_HEAD(&ptxservq->tx_pending);
22 _rtw_init_queue(&ptxservq->sta_pending);
23 ptxservq->qcnt = 0;
24 }
25
_rtw_init_sta_xmit_priv(struct sta_xmit_priv * psta_xmitpriv)26 void _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv)
27 {
28 memset((unsigned char *)psta_xmitpriv, 0, sizeof(struct sta_xmit_priv));
29 spin_lock_init(&psta_xmitpriv->lock);
30 _init_txservq(&psta_xmitpriv->be_q);
31 _init_txservq(&psta_xmitpriv->bk_q);
32 _init_txservq(&psta_xmitpriv->vi_q);
33 _init_txservq(&psta_xmitpriv->vo_q);
34 INIT_LIST_HEAD(&psta_xmitpriv->legacy_dz);
35 INIT_LIST_HEAD(&psta_xmitpriv->apsd);
36 }
37
_rtw_init_xmit_priv(struct xmit_priv * pxmitpriv,struct adapter * padapter)38 s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
39 {
40 int i;
41 struct xmit_buf *pxmitbuf;
42 struct xmit_frame *pxframe;
43 int res = _SUCCESS;
44 u32 max_xmit_extbuf_size = MAX_XMIT_EXTBUF_SZ;
45 u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
46
47 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
48
49 spin_lock_init(&pxmitpriv->lock);
50
51 /*
52 * Please insert all the queue initializaiton using _rtw_init_queue below
53 */
54
55 pxmitpriv->adapter = padapter;
56
57 _rtw_init_queue(&pxmitpriv->be_pending);
58 _rtw_init_queue(&pxmitpriv->bk_pending);
59 _rtw_init_queue(&pxmitpriv->vi_pending);
60 _rtw_init_queue(&pxmitpriv->vo_pending);
61 _rtw_init_queue(&pxmitpriv->bm_pending);
62
63 _rtw_init_queue(&pxmitpriv->free_xmit_queue);
64
65 /*
66 * Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME,
67 * and initialize free_xmit_frame below.
68 * Please also apply free_txobj to link_up all the xmit_frames...
69 */
70
71 pxmitpriv->pallocated_frame_buf = vzalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4);
72
73 if (!pxmitpriv->pallocated_frame_buf) {
74 pxmitpriv->pxmit_frame_buf = NULL;
75 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_frame fail!\n"));
76 res = _FAIL;
77 goto exit;
78 }
79 pxmitpriv->pxmit_frame_buf = PTR_ALIGN(pxmitpriv->pallocated_frame_buf, 4);
80
81 pxframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
82
83 for (i = 0; i < NR_XMITFRAME; i++) {
84 INIT_LIST_HEAD(&pxframe->list);
85
86 pxframe->padapter = padapter;
87 pxframe->frame_tag = NULL_FRAMETAG;
88
89 pxframe->pkt = NULL;
90
91 pxframe->buf_addr = NULL;
92 pxframe->pxmitbuf = NULL;
93
94 list_add_tail(&pxframe->list, &pxmitpriv->free_xmit_queue.queue);
95
96 pxframe++;
97 }
98
99 pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
100
101 pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
102
103 /* init xmit_buf */
104 _rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
105 _rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
106
107 pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
108
109 if (!pxmitpriv->pallocated_xmitbuf) {
110 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_buf fail!\n"));
111 res = _FAIL;
112 goto exit;
113 }
114
115 pxmitpriv->pxmitbuf = PTR_ALIGN(pxmitpriv->pallocated_xmitbuf, 4);
116
117 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
118
119 for (i = 0; i < NR_XMITBUFF; i++) {
120 INIT_LIST_HEAD(&pxmitbuf->list);
121
122 pxmitbuf->priv_data = NULL;
123 pxmitbuf->padapter = padapter;
124 pxmitbuf->ext_tag = false;
125
126 /* Tx buf allocation may fail sometimes, so sleep and retry. */
127 res = rtw_os_xmit_resource_alloc(pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
128 if (res == _FAIL) {
129 msleep(10);
130 res = rtw_os_xmit_resource_alloc(pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
131 if (res == _FAIL)
132 goto exit;
133 }
134
135 pxmitbuf->flags = XMIT_VO_QUEUE;
136
137 list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmitbuf_queue.queue);
138 pxmitbuf++;
139 }
140
141 pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
142
143 /* Init xmit extension buff */
144 _rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
145
146 pxmitpriv->pallocated_xmit_extbuf = vzalloc(num_xmit_extbuf * sizeof(struct xmit_buf) + 4);
147
148 if (!pxmitpriv->pallocated_xmit_extbuf) {
149 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_extbuf fail!\n"));
150 res = _FAIL;
151 goto exit;
152 }
153
154 pxmitpriv->pxmit_extbuf = PTR_ALIGN(pxmitpriv->pallocated_xmit_extbuf, 4);
155
156 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
157
158 for (i = 0; i < num_xmit_extbuf; i++) {
159 INIT_LIST_HEAD(&pxmitbuf->list);
160
161 pxmitbuf->priv_data = NULL;
162 pxmitbuf->padapter = padapter;
163 pxmitbuf->ext_tag = true;
164
165 res = rtw_os_xmit_resource_alloc(pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ);
166 if (res == _FAIL) {
167 res = _FAIL;
168 goto exit;
169 }
170
171 list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmit_extbuf_queue.queue);
172 pxmitbuf++;
173 }
174
175 pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
176
177 res = rtw_alloc_hwxmits(padapter);
178 if (res == _FAIL)
179 goto exit;
180 rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
181
182 for (i = 0; i < 4; i++)
183 pxmitpriv->wmm_para_seq[i] = i;
184
185 pxmitpriv->txirp_cnt = 1;
186
187 /* per AC pending irp */
188 pxmitpriv->beq_cnt = 0;
189 pxmitpriv->bkq_cnt = 0;
190 pxmitpriv->viq_cnt = 0;
191 pxmitpriv->voq_cnt = 0;
192
193 pxmitpriv->ack_tx = false;
194 mutex_init(&pxmitpriv->ack_tx_mutex);
195 rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
196
197 rtw_hal_init_xmit_priv(padapter);
198
199 exit:
200 return res;
201 }
202
_rtw_free_xmit_priv(struct xmit_priv * pxmitpriv)203 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
204 {
205 int i;
206 struct adapter *padapter = pxmitpriv->adapter;
207 struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
208 struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
209 u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
210
211 if (!pxmitpriv->pxmit_frame_buf)
212 return;
213
214 for (i = 0; i < NR_XMITFRAME; i++) {
215 rtw_os_xmit_complete(padapter, pxmitframe);
216
217 pxmitframe++;
218 }
219
220 for (i = 0; i < NR_XMITBUFF; i++) {
221 rtw_os_xmit_resource_free(pxmitbuf);
222 pxmitbuf++;
223 }
224
225 vfree(pxmitpriv->pallocated_frame_buf);
226 vfree(pxmitpriv->pallocated_xmitbuf);
227
228 /* free xmit extension buff */
229 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
230 for (i = 0; i < num_xmit_extbuf; i++) {
231 rtw_os_xmit_resource_free(pxmitbuf);
232 pxmitbuf++;
233 }
234
235 vfree(pxmitpriv->pallocated_xmit_extbuf);
236
237 rtw_free_hwxmits(padapter);
238
239 mutex_destroy(&pxmitpriv->ack_tx_mutex);
240 }
241
update_attrib_vcs_info(struct adapter * padapter,struct xmit_frame * pxmitframe)242 static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
243 {
244 u32 sz;
245 struct pkt_attrib *pattrib = &pxmitframe->attrib;
246 struct sta_info *psta = pattrib->psta;
247 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
248 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
249
250 if (pattrib->nr_frags != 1)
251 sz = padapter->xmitpriv.frag_len;
252 else /* no frag */
253 sz = pattrib->last_txcmdsz;
254
255 /* (1) RTS_Threshold is compared to the MPDU, not MSDU.
256 * (2) If there are more than one frag in this MSDU,
257 * only the first frag uses protection frame.
258 * Other fragments are protected by previous fragment.
259 * So we only need to check the length of first fragment.
260 */
261 if (pmlmeext->cur_wireless_mode < WIRELESS_11_24N || padapter->registrypriv.wifi_spec) {
262 if (sz > padapter->registrypriv.rts_thresh) {
263 pattrib->vcs_mode = RTS_CTS;
264 } else {
265 if (psta->rtsen)
266 pattrib->vcs_mode = RTS_CTS;
267 else if (psta->cts2self)
268 pattrib->vcs_mode = CTS_TO_SELF;
269 else
270 pattrib->vcs_mode = NONE_VCS;
271 }
272 } else {
273 while (true) {
274 /* IOT action */
275 if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_ATHEROS) && pattrib->ampdu_en &&
276 (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)) {
277 pattrib->vcs_mode = CTS_TO_SELF;
278 break;
279 }
280
281 /* check ERP protection */
282 if (psta->rtsen || psta->cts2self) {
283 if (psta->rtsen)
284 pattrib->vcs_mode = RTS_CTS;
285 else if (psta->cts2self)
286 pattrib->vcs_mode = CTS_TO_SELF;
287
288 break;
289 }
290
291 /* check HT op mode */
292 if (pattrib->ht_en) {
293 u8 htopmode = pmlmeinfo->HT_protection;
294
295 if ((pmlmeext->cur_bwmode && (htopmode == 2 || htopmode == 3)) ||
296 (!pmlmeext->cur_bwmode && htopmode == 3)) {
297 pattrib->vcs_mode = RTS_CTS;
298 break;
299 }
300 }
301
302 /* check rts */
303 if (sz > padapter->registrypriv.rts_thresh) {
304 pattrib->vcs_mode = RTS_CTS;
305 break;
306 }
307
308 /* to do list: check MIMO power save condition. */
309
310 /* check AMPDU aggregation for TXOP */
311 if (pattrib->ampdu_en) {
312 pattrib->vcs_mode = RTS_CTS;
313 break;
314 }
315
316 pattrib->vcs_mode = NONE_VCS;
317 break;
318 }
319 }
320 }
321
update_attrib_phy_info(struct pkt_attrib * pattrib,struct sta_info * psta)322 static void update_attrib_phy_info(struct pkt_attrib *pattrib, struct sta_info *psta)
323 {
324 pattrib->mdata = 0;
325 pattrib->eosp = 0;
326 pattrib->triggered = 0;
327
328 /* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
329 pattrib->qos_en = psta->qos_option;
330
331 pattrib->raid = psta->raid;
332 pattrib->ht_en = psta->htpriv.ht_option;
333 pattrib->bwmode = psta->htpriv.bwmode;
334 pattrib->ch_offset = psta->htpriv.ch_offset;
335 pattrib->sgi = psta->htpriv.sgi;
336 pattrib->ampdu_en = false;
337 pattrib->retry_ctrl = false;
338 }
339
qos_acm(u8 acm_mask,u8 priority)340 u8 qos_acm(u8 acm_mask, u8 priority)
341 {
342 u8 change_priority = priority;
343
344 switch (priority) {
345 case 0:
346 case 3:
347 if (acm_mask & BIT(1))
348 change_priority = 1;
349 break;
350 case 1:
351 case 2:
352 break;
353 case 4:
354 case 5:
355 if (acm_mask & BIT(2))
356 change_priority = 0;
357 break;
358 case 6:
359 case 7:
360 if (acm_mask & BIT(3))
361 change_priority = 5;
362 break;
363 default:
364 DBG_88E("%s(): invalid pattrib->priority: %d!!!\n",
365 __func__, priority);
366 break;
367 }
368
369 return change_priority;
370 }
371
set_qos(struct sk_buff * skb,struct pkt_attrib * pattrib)372 static void set_qos(struct sk_buff *skb, struct pkt_attrib *pattrib)
373 {
374 if (pattrib->ether_type == 0x0800) {
375 struct iphdr ip_hdr;
376
377 skb_copy_bits(skb, ETH_HLEN, &ip_hdr, sizeof(ip_hdr));
378 pattrib->priority = ip_hdr.tos >> 5;
379 } else if (pattrib->ether_type == ETH_P_PAE) {
380 /* When priority processing of data frames is supported,
381 * a STA's SME should send EAPOL-Key frames at the highest
382 * priority.
383 */
384 pattrib->priority = 7;
385 } else {
386 pattrib->priority = 0;
387 }
388
389 pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
390 pattrib->subtype = WIFI_QOS_DATA_TYPE;
391 }
392
update_attrib(struct adapter * padapter,struct sk_buff * pkt,struct pkt_attrib * pattrib)393 static s32 update_attrib(struct adapter *padapter, struct sk_buff *pkt, struct pkt_attrib *pattrib)
394 {
395 struct sta_info *psta = NULL;
396 struct ethhdr etherhdr;
397
398 bool mcast;
399 struct sta_priv *pstapriv = &padapter->stapriv;
400 struct security_priv *psecuritypriv = &padapter->securitypriv;
401 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
402 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
403 int res = _SUCCESS;
404
405 skb_copy_bits(pkt, 0, ðerhdr, ETH_HLEN);
406
407 pattrib->ether_type = ntohs(etherhdr.h_proto);
408
409 memcpy(pattrib->dst, ðerhdr.h_dest, ETH_ALEN);
410 memcpy(pattrib->src, ðerhdr.h_source, ETH_ALEN);
411
412 pattrib->pctrl = 0;
413
414 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
415 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
416 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
417 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
418 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
419 memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
420 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
421 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
422 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
423 memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
424 }
425
426 pattrib->pktlen = pkt->len - ETH_HLEN;
427
428 if (pattrib->ether_type == ETH_P_IP) {
429 /* The following is for DHCP and ARP packet, we use
430 * cck1M to tx these packets and let LPS awake some
431 * time to prevent DHCP protocol fail.
432 */
433 u8 tmp[24];
434
435 skb_copy_bits(pkt, ETH_HLEN, tmp, 24);
436
437 pattrib->dhcp_pkt = 0;
438 if (pkt->len > ETH_HLEN + 24 + 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
439 if (pattrib->ether_type == ETH_P_IP) {/* IP header */
440 if (((tmp[21] == 68) && (tmp[23] == 67)) ||
441 ((tmp[21] == 67) && (tmp[23] == 68))) {
442 /* 68 : UDP BOOTP client */
443 /* 67 : UDP BOOTP server */
444 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====================== %s: get DHCP Packet\n", __func__));
445 /* Use low rate to send DHCP packet. */
446 pattrib->dhcp_pkt = 1;
447 }
448 }
449 }
450 } else if (pattrib->ether_type == ETH_P_PAE) {
451 DBG_88E_LEVEL(_drv_info_, "send eapol packet\n");
452 }
453
454 if ((pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
455 rtw_set_scan_deny(padapter, 3000);
456
457 /* If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
458 if ((pattrib->ether_type == ETH_P_ARP) || (pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
459 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
460
461 mcast = is_multicast_ether_addr(pattrib->ra);
462
463 /* get sta_info */
464 if (mcast) {
465 psta = rtw_get_bcmc_stainfo(padapter);
466 } else {
467 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
468 if (!psta) { /* if we cannot get psta => drrp the pkt */
469 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra: %pM\n", (pattrib->ra)));
470 res = _FAIL;
471 goto exit;
472 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) &&
473 !(psta->state & _FW_LINKED)) {
474 res = _FAIL;
475 goto exit;
476 }
477 }
478
479 if (psta) {
480 pattrib->mac_id = psta->mac_id;
481 /* DBG_88E("%s ==> mac_id(%d)\n", __func__, pattrib->mac_id); */
482 pattrib->psta = psta;
483 } else {
484 /* if we cannot get psta => drop the pkt */
485 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:%pM\n", (pattrib->ra)));
486 res = _FAIL;
487 goto exit;
488 }
489
490 pattrib->ack_policy = 0;
491
492 pattrib->hdrlen = WLAN_HDR_A3_LEN;
493 pattrib->subtype = WIFI_DATA_TYPE;
494 pattrib->priority = 0;
495
496 if (check_fwstate(pmlmepriv, WIFI_AP_STATE |
497 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE)) {
498 if (psta->qos_option)
499 set_qos(pkt, pattrib);
500 } else {
501 if (pqospriv->qos_option) {
502 set_qos(pkt, pattrib);
503
504 if (pmlmepriv->acm_mask != 0)
505 pattrib->priority = qos_acm(pmlmepriv->acm_mask, pattrib->priority);
506 }
507 }
508
509 if (psta->ieee8021x_blocked) {
510 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\n psta->ieee8021x_blocked == true\n"));
511
512 pattrib->encrypt = 0;
513
514 if (pattrib->ether_type != ETH_P_PAE) {
515 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\npsta->ieee8021x_blocked == true, pattrib->ether_type(%.4x) != ETH_P_PAE\n", pattrib->ether_type));
516 res = _FAIL;
517 goto exit;
518 }
519 } else {
520 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, mcast);
521
522 switch (psecuritypriv->dot11AuthAlgrthm) {
523 case dot11AuthAlgrthm_Open:
524 case dot11AuthAlgrthm_Shared:
525 case dot11AuthAlgrthm_Auto:
526 pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
527 break;
528 case dot11AuthAlgrthm_8021X:
529 if (mcast)
530 pattrib->key_idx = (u8)psecuritypriv->dot118021XGrpKeyid;
531 else
532 pattrib->key_idx = 0;
533 break;
534 default:
535 pattrib->key_idx = 0;
536 break;
537 }
538 }
539
540 switch (pattrib->encrypt) {
541 case _WEP40_:
542 case _WEP104_:
543 pattrib->iv_len = 4;
544 pattrib->icv_len = 4;
545 break;
546 case _TKIP_:
547 pattrib->iv_len = 8;
548 pattrib->icv_len = 4;
549
550 if (padapter->securitypriv.busetkipkey == _FAIL) {
551 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
552 ("\npadapter->securitypriv.busetkipkey(%d) == _FAIL drop packet\n",
553 padapter->securitypriv.busetkipkey));
554 res = _FAIL;
555 goto exit;
556 }
557 break;
558 case _AES_:
559 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("pattrib->encrypt=%d (_AES_)\n", pattrib->encrypt));
560 pattrib->iv_len = 8;
561 pattrib->icv_len = 8;
562 break;
563 default:
564 pattrib->iv_len = 0;
565 pattrib->icv_len = 0;
566 break;
567 }
568
569 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
570 ("%s: encrypt=%d\n", __func__, pattrib->encrypt));
571
572 if (pattrib->encrypt && !psecuritypriv->hw_decrypted) {
573 pattrib->bswenc = true;
574 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
575 ("%s: encrypt=%d bswenc = true\n", __func__,
576 pattrib->encrypt));
577 } else {
578 pattrib->bswenc = false;
579 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("%s: bswenc = false\n", __func__));
580 }
581
582 update_attrib_phy_info(pattrib, psta);
583
584 exit:
585 return res;
586 }
587
xmitframe_addmic(struct adapter * padapter,struct xmit_frame * pxmitframe)588 static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitframe)
589 {
590 int curfragnum, length;
591 u8 *pframe, *payload, mic[8];
592 struct mic_data micdata;
593 struct sta_info *stainfo;
594 struct pkt_attrib *pattrib = &pxmitframe->attrib;
595 struct security_priv *psecuritypriv = &padapter->securitypriv;
596 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
597 u8 priority[4] = {};
598 u8 hw_hdr_offset = 0;
599
600 if (pattrib->psta)
601 stainfo = pattrib->psta;
602 else
603 stainfo = rtw_get_stainfo(&padapter->stapriv, &pattrib->ra[0]);
604
605 hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
606
607 if (pattrib->encrypt == _TKIP_) {
608 /* encode mic code */
609 if (stainfo) {
610 u8 null_key[16] = {};
611
612 pframe = pxmitframe->buf_addr + hw_hdr_offset;
613
614 if (is_multicast_ether_addr(pattrib->ra)) {
615 if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
616 return _FAIL;
617 /* start to calculate the mic code */
618 rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
619 } else {
620 if (!memcmp(&stainfo->dot11tkiptxmickey.skey[0], null_key, 16))
621 return _FAIL;
622 /* start to calculate the mic code */
623 rtw_secmicsetkey(&micdata, &stainfo->dot11tkiptxmickey.skey[0]);
624 }
625
626 if (pframe[1] & 1) { /* ToDS == 1 */
627 rtw_secmicappend(&micdata, &pframe[16], 6); /* DA */
628 if (pframe[1] & 2) /* From Ds == 1 */
629 rtw_secmicappend(&micdata, &pframe[24], 6);
630 else
631 rtw_secmicappend(&micdata, &pframe[10], 6);
632 } else { /* ToDS == 0 */
633 rtw_secmicappend(&micdata, &pframe[4], 6); /* DA */
634 if (pframe[1] & 2) /* From Ds == 1 */
635 rtw_secmicappend(&micdata, &pframe[16], 6);
636 else
637 rtw_secmicappend(&micdata, &pframe[10], 6);
638 }
639
640 if (pattrib->qos_en)
641 priority[0] = (u8)pxmitframe->attrib.priority;
642
643 rtw_secmicappend(&micdata, &priority[0], 4);
644
645 payload = pframe;
646
647 for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
648 payload = (u8 *)round_up((size_t)(payload), 4);
649 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
650 ("=== curfragnum=%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
651 curfragnum, *payload, *(payload + 1),
652 *(payload + 2), *(payload + 3),
653 *(payload + 4), *(payload + 5),
654 *(payload + 6), *(payload + 7)));
655
656 payload += pattrib->hdrlen + pattrib->iv_len;
657 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
658 ("curfragnum=%d pattrib->hdrlen=%d pattrib->iv_len=%d",
659 curfragnum, pattrib->hdrlen, pattrib->iv_len));
660 if (curfragnum + 1 == pattrib->nr_frags) {
661 length = pattrib->last_txcmdsz -
662 pattrib->hdrlen -
663 pattrib->iv_len -
664 ((pattrib->bswenc) ?
665 pattrib->icv_len : 0);
666 rtw_secmicappend(&micdata, payload, length);
667 payload += length;
668 } else {
669 length = pxmitpriv->frag_len -
670 pattrib->hdrlen -
671 pattrib->iv_len -
672 ((pattrib->bswenc) ?
673 pattrib->icv_len : 0);
674 rtw_secmicappend(&micdata, payload, length);
675 payload += length + pattrib->icv_len;
676 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum=%d length=%d pattrib->icv_len=%d", curfragnum, length, pattrib->icv_len));
677 }
678 }
679 rtw_secgetmic(&micdata, &mic[0]);
680 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: before add mic code!!!\n", __func__));
681 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: pattrib->last_txcmdsz=%d!!!\n", __func__, pattrib->last_txcmdsz));
682 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: mic[0]=0x%.2x , mic[1]=0x%.2x , mic[2]= 0x%.2x, mic[3]=0x%.2x\n\
683 mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
684 __func__, mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
685 /* add mic code and add the mic code length in last_txcmdsz */
686
687 memcpy(payload, &mic[0], 8);
688 pattrib->last_txcmdsz += 8;
689
690 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ======== last pkt ========\n"));
691 payload -= pattrib->last_txcmdsz + 8;
692 for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum += 8)
693 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
694 (" %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x ",
695 *(payload + curfragnum), *(payload + curfragnum + 1),
696 *(payload + curfragnum + 2), *(payload + curfragnum + 3),
697 *(payload + curfragnum + 4), *(payload + curfragnum + 5),
698 *(payload + curfragnum + 6), *(payload + curfragnum + 7)));
699 } else {
700 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: rtw_get_stainfo==NULL!!!\n", __func__));
701 }
702 }
703
704 return _SUCCESS;
705 }
706
xmitframe_swencrypt(struct adapter * padapter,struct xmit_frame * pxmitframe)707 static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
708 {
709 struct pkt_attrib *pattrib = &pxmitframe->attrib;
710
711 if (pattrib->bswenc) {
712 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("### %s\n", __func__));
713 switch (pattrib->encrypt) {
714 case _WEP40_:
715 case _WEP104_:
716 rtw_wep_encrypt(padapter, pxmitframe);
717 break;
718 case _TKIP_:
719 rtw_tkip_encrypt(padapter, pxmitframe);
720 break;
721 case _AES_:
722 rtw_aes_encrypt(padapter, pxmitframe);
723 break;
724 default:
725 break;
726 }
727 } else {
728 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_, ("### xmitframe_hwencrypt\n"));
729 }
730
731 return _SUCCESS;
732 }
733
rtw_make_wlanhdr(struct adapter * padapter,u8 * hdr,struct pkt_attrib * pattrib)734 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
735 {
736 u16 *qc;
737
738 struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
739 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
740 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
741 u8 qos_option = false;
742
743 int res = _SUCCESS;
744 __le16 *fctrl = &pwlanhdr->frame_control;
745
746 struct sta_info *psta;
747
748 if (pattrib->psta) {
749 psta = pattrib->psta;
750 } else {
751 if (is_multicast_ether_addr(pattrib->ra))
752 psta = rtw_get_bcmc_stainfo(padapter);
753 else
754 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
755 }
756
757 memset(hdr, 0, WLANHDR_OFFSET);
758
759 SetFrameSubType(fctrl, pattrib->subtype);
760
761 if (pattrib->subtype & WIFI_DATA_TYPE) {
762 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
763 /* to_ds = 1, fr_ds = 0; */
764 /* Data transfer to AP */
765 SetToDs(fctrl);
766 memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), ETH_ALEN);
767 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
768 memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN);
769
770 if (pqospriv->qos_option)
771 qos_option = true;
772 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
773 /* to_ds = 0, fr_ds = 1; */
774 SetFrDs(fctrl);
775 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
776 memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN);
777 memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);
778
779 if (psta && psta->qos_option)
780 qos_option = true;
781 } else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
782 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
783 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
784 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
785 memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);
786
787 if (psta && psta->qos_option)
788 qos_option = true;
789 } else {
790 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));
791 res = _FAIL;
792 goto exit;
793 }
794
795 if (pattrib->mdata)
796 SetMData(fctrl);
797
798 if (pattrib->encrypt)
799 SetPrivacy(fctrl);
800
801 if (qos_option) {
802 qc = (unsigned short *)(hdr + pattrib->hdrlen - 2);
803
804 if (pattrib->priority)
805 SetPriority(qc, pattrib->priority);
806
807 SetEOSP(qc, pattrib->eosp);
808
809 SetAckpolicy(qc, pattrib->ack_policy);
810 }
811
812 /* TODO: fill HT Control Field */
813
814 /* Update Seq Num will be handled by f/w */
815 if (psta) {
816 psta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
817 psta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
818
819 pattrib->seqnum = psta->sta_xmitpriv.txseq_tid[pattrib->priority];
820
821 SetSeqNum(hdr, pattrib->seqnum);
822
823 /* check if enable ampdu */
824 if (pattrib->ht_en && psta->htpriv.ampdu_enable) {
825 if (psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
826 pattrib->ampdu_en = true;
827 }
828
829 /* re-check if enable ampdu by BA_starting_seqctrl */
830 if (pattrib->ampdu_en) {
831 u16 tx_seq;
832
833 tx_seq = psta->BA_starting_seqctrl[pattrib->priority & 0x0f];
834
835 /* check BA_starting_seqctrl */
836 if (SN_LESS(pattrib->seqnum, tx_seq)) {
837 pattrib->ampdu_en = false;/* AGG BK */
838 } else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {
839 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (tx_seq + 1) & 0xfff;
840
841 pattrib->ampdu_en = true;/* AGG EN */
842 } else {
843 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (pattrib->seqnum + 1) & 0xfff;
844 pattrib->ampdu_en = true;/* AGG EN */
845 }
846 }
847 }
848 }
849 exit:
850
851 return res;
852 }
853
rtw_txframes_pending(struct adapter * padapter)854 s32 rtw_txframes_pending(struct adapter *padapter)
855 {
856 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
857
858 return (!list_empty(&pxmitpriv->be_pending.queue) ||
859 !list_empty(&pxmitpriv->bk_pending.queue) ||
860 !list_empty(&pxmitpriv->vi_pending.queue) ||
861 !list_empty(&pxmitpriv->vo_pending.queue));
862 }
863
rtw_txframes_sta_ac_pending(struct adapter * padapter,struct pkt_attrib * pattrib)864 s32 rtw_txframes_sta_ac_pending(struct adapter *padapter, struct pkt_attrib *pattrib)
865 {
866 struct sta_info *psta;
867 struct tx_servq *ptxservq;
868 int priority = pattrib->priority;
869
870 psta = pattrib->psta;
871
872 switch (priority) {
873 case 1:
874 case 2:
875 ptxservq = &psta->sta_xmitpriv.bk_q;
876 break;
877 case 4:
878 case 5:
879 ptxservq = &psta->sta_xmitpriv.vi_q;
880 break;
881 case 6:
882 case 7:
883 ptxservq = &psta->sta_xmitpriv.vo_q;
884 break;
885 case 0:
886 case 3:
887 default:
888 ptxservq = &psta->sta_xmitpriv.be_q;
889 break;
890 }
891
892 return ptxservq->qcnt;
893 }
894
895 /*
896 *
897 * This sub-routine will perform all the following:
898 *
899 * 1. remove 802.3 header.
900 * 2. create wlan_header, based on the info in pxmitframe
901 * 3. append sta's iv/ext-iv
902 * 4. append LLC
903 * 5. move frag chunk from pframe to pxmitframe->mem
904 * 6. apply sw-encrypt, if necessary.
905 *
906 */
rtw_xmitframe_coalesce(struct adapter * padapter,struct sk_buff * pkt,struct xmit_frame * pxmitframe)907 s32 rtw_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, struct xmit_frame *pxmitframe)
908 {
909 s32 frg_inx, frg_len, mpdu_len, llc_sz, mem_sz;
910 size_t addr;
911 u8 *pframe, *mem_start;
912 u8 hw_hdr_offset;
913 struct sta_info *psta;
914 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
915 struct pkt_attrib *pattrib = &pxmitframe->attrib;
916 u8 *pbuf_start;
917 bool mcast = is_multicast_ether_addr(pattrib->ra);
918 s32 res = _SUCCESS;
919 size_t remainder = pkt->len - ETH_HLEN;
920
921 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
922
923 if (!psta)
924 return _FAIL;
925
926 if (!pxmitframe->buf_addr) {
927 DBG_88E("==> %s buf_addr == NULL\n", __func__);
928 return _FAIL;
929 }
930
931 pbuf_start = pxmitframe->buf_addr;
932
933 hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
934
935 mem_start = pbuf_start + hw_hdr_offset;
936
937 if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
938 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: rtw_make_wlanhdr fail; drop pkt\n", __func__));
939 DBG_88E("%s: rtw_make_wlanhdr fail; drop pkt\n", __func__);
940 res = _FAIL;
941 goto exit;
942 }
943
944 frg_inx = 0;
945 frg_len = pxmitpriv->frag_len - 4;/* 2346-4 = 2342 */
946
947 while (1) {
948 llc_sz = 0;
949
950 mpdu_len = frg_len;
951
952 pframe = mem_start;
953
954 SetMFrag(mem_start);
955
956 pframe += pattrib->hdrlen;
957 mpdu_len -= pattrib->hdrlen;
958
959 /* adding icv, if necessary... */
960 if (pattrib->iv_len) {
961 switch (pattrib->encrypt) {
962 case _WEP40_:
963 case _WEP104_:
964 WEP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
965 break;
966 case _TKIP_:
967 if (mcast)
968 TKIP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
969 else
970 TKIP_IV(pattrib->iv, psta->dot11txpn, 0);
971 break;
972 case _AES_:
973 if (mcast)
974 AES_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
975 else
976 AES_IV(pattrib->iv, psta->dot11txpn, 0);
977 break;
978 }
979
980 memcpy(pframe, pattrib->iv, pattrib->iv_len);
981
982 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
983 ("%s: keyid=%d pattrib->iv[3]=%.2x pframe=%.2x %.2x %.2x %.2x\n",
984 __func__,
985 padapter->securitypriv.dot11PrivacyKeyIndex,
986 pattrib->iv[3], *pframe, *(pframe + 1),
987 *(pframe + 2), *(pframe + 3)));
988
989 pframe += pattrib->iv_len;
990
991 mpdu_len -= pattrib->iv_len;
992 }
993
994 if (frg_inx == 0) {
995 llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
996 pframe += llc_sz;
997 mpdu_len -= llc_sz;
998 }
999
1000 if ((pattrib->icv_len > 0) && (pattrib->bswenc))
1001 mpdu_len -= pattrib->icv_len;
1002
1003 mem_sz = min_t(size_t, mcast ? pattrib->pktlen : mpdu_len, remainder);
1004 skb_copy_bits(pkt, pkt->len - remainder, pframe, mem_sz);
1005 remainder -= mem_sz;
1006
1007 pframe += mem_sz;
1008
1009 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1010 memcpy(pframe, pattrib->icv, pattrib->icv_len);
1011 pframe += pattrib->icv_len;
1012 }
1013
1014 frg_inx++;
1015
1016 if (mcast || remainder == 0) {
1017 pattrib->nr_frags = frg_inx;
1018
1019 pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz : 0) +
1020 ((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
1021
1022 ClearMFrag(mem_start);
1023
1024 break;
1025 }
1026
1027 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: There're still something in packet!\n", __func__));
1028
1029 addr = (size_t)(pframe);
1030
1031 mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
1032 memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
1033 }
1034
1035 /* Frame is about to be encrypted. Forward it to the monitor first. */
1036 rtl88eu_mon_xmit_hook(padapter->pmondev, pxmitframe, frg_len);
1037
1038 if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
1039 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
1040 DBG_88E("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
1041 res = _FAIL;
1042 goto exit;
1043 }
1044
1045 xmitframe_swencrypt(padapter, pxmitframe);
1046
1047 if (!mcast)
1048 update_attrib_vcs_info(padapter, pxmitframe);
1049 else
1050 pattrib->vcs_mode = NONE_VCS;
1051
1052 exit:
1053 return res;
1054 }
1055
1056 /* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
1057 * IEEE LLC/SNAP header contains 8 octets
1058 * First 3 octets comprise the LLC portion
1059 * SNAP portion, 5 octets, is divided into two fields:
1060 * Organizationally Unique Identifier(OUI), 3 octets,
1061 * type, defined by that organization, 2 octets.
1062 */
rtw_put_snap(u8 * data,u16 h_proto)1063 s32 rtw_put_snap(u8 *data, u16 h_proto)
1064 {
1065 struct ieee80211_snap_hdr *snap;
1066 u8 *oui;
1067
1068 snap = (struct ieee80211_snap_hdr *)data;
1069 snap->dsap = 0xaa;
1070 snap->ssap = 0xaa;
1071 snap->ctrl = 0x03;
1072
1073 if (h_proto == 0x8137 || h_proto == 0x80f3)
1074 oui = P802_1H_OUI;
1075 else
1076 oui = RFC1042_OUI;
1077
1078 snap->oui[0] = oui[0];
1079 snap->oui[1] = oui[1];
1080 snap->oui[2] = oui[2];
1081
1082 *(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
1083
1084 return SNAP_SIZE + sizeof(u16);
1085 }
1086
rtw_update_protection(struct adapter * padapter,u8 * ie,uint ie_len)1087 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
1088 {
1089 uint protection, erp_len;
1090 u8 *perp;
1091 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1092 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1093
1094 switch (pxmitpriv->vcs_setting) {
1095 case DISABLE_VCS:
1096 pxmitpriv->vcs = NONE_VCS;
1097 break;
1098 case ENABLE_VCS:
1099 break;
1100 case AUTO_VCS:
1101 default:
1102 perp = rtw_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
1103 if (!perp) {
1104 pxmitpriv->vcs = NONE_VCS;
1105 } else {
1106 protection = (*(perp + 2)) & BIT(1);
1107 if (protection) {
1108 if (pregistrypriv->vcs_type == RTS_CTS)
1109 pxmitpriv->vcs = RTS_CTS;
1110 else
1111 pxmitpriv->vcs = CTS_TO_SELF;
1112 } else {
1113 pxmitpriv->vcs = NONE_VCS;
1114 }
1115 }
1116 break;
1117 }
1118 }
1119
rtw_count_tx_stats(struct adapter * padapter,struct xmit_frame * pxmitframe,int sz)1120 void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
1121 {
1122 struct sta_info *psta = NULL;
1123 struct stainfo_stats *pstats = NULL;
1124 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1125 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1126
1127 if ((pxmitframe->frame_tag & 0x0f) == DATA_FRAMETAG) {
1128 pxmitpriv->tx_bytes += sz;
1129 pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pxmitframe->agg_num;
1130
1131 psta = pxmitframe->attrib.psta;
1132 if (psta) {
1133 pstats = &psta->sta_stats;
1134 pstats->tx_pkts += pxmitframe->agg_num;
1135 pstats->tx_bytes += sz;
1136 }
1137 }
1138 }
1139
rtw_alloc_xmitbuf_ext(struct xmit_priv * pxmitpriv)1140 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
1141 {
1142 unsigned long irql;
1143 struct xmit_buf *pxmitbuf;
1144 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1145
1146 spin_lock_irqsave(&pfree_queue->lock, irql);
1147 pxmitbuf = list_first_entry_or_null(&pfree_queue->queue,
1148 struct xmit_buf, list);
1149 if (pxmitbuf) {
1150 list_del_init(&pxmitbuf->list);
1151 pxmitpriv->free_xmit_extbuf_cnt--;
1152 pxmitbuf->priv_data = NULL;
1153 if (pxmitbuf->sctx) {
1154 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1155 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1156 }
1157 }
1158 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1159
1160 return pxmitbuf;
1161 }
1162
rtw_free_xmitbuf_ext(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1163 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1164 {
1165 unsigned long irql;
1166 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1167
1168 if (!pxmitbuf)
1169 return _FAIL;
1170
1171 spin_lock_irqsave(&pfree_queue->lock, irql);
1172
1173 list_del_init(&pxmitbuf->list);
1174
1175 list_add_tail(&pxmitbuf->list, get_list_head(pfree_queue));
1176 pxmitpriv->free_xmit_extbuf_cnt++;
1177
1178 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1179
1180 return _SUCCESS;
1181 }
1182
rtw_alloc_xmitbuf(struct xmit_priv * pxmitpriv)1183 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
1184 {
1185 unsigned long irql;
1186 struct xmit_buf *pxmitbuf;
1187 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1188
1189 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1190 pxmitbuf = list_first_entry_or_null(&pfree_xmitbuf_queue->queue,
1191 struct xmit_buf, list);
1192 if (pxmitbuf) {
1193 list_del_init(&pxmitbuf->list);
1194 pxmitpriv->free_xmitbuf_cnt--;
1195 pxmitbuf->priv_data = NULL;
1196 if (pxmitbuf->sctx) {
1197 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1198 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1199 }
1200 }
1201 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1202
1203 return pxmitbuf;
1204 }
1205
rtw_free_xmitbuf(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1206 s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1207 {
1208 unsigned long irql;
1209 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1210
1211 if (!pxmitbuf)
1212 return _FAIL;
1213
1214 if (pxmitbuf->sctx) {
1215 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1216 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_FREE);
1217 }
1218
1219 if (pxmitbuf->ext_tag) {
1220 rtw_free_xmitbuf_ext(pxmitpriv, pxmitbuf);
1221 } else {
1222 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1223
1224 list_del_init(&pxmitbuf->list);
1225
1226 list_add_tail(&pxmitbuf->list, get_list_head(pfree_xmitbuf_queue));
1227
1228 pxmitpriv->free_xmitbuf_cnt++;
1229 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1230 }
1231
1232 return _SUCCESS;
1233 }
1234
1235 /*
1236 * Calling context:
1237 * 1. OS_TXENTRY
1238 * 2. RXENTRY (rx_thread or RX_ISR/RX_CallBack)
1239 *
1240 * If we turn on USE_RXTHREAD, then, no need for critical section.
1241 * Otherwise, we must use _enter/_exit critical to protect free_xmit_queue...
1242 *
1243 * Must be very very cautious...
1244 *
1245 */
1246
rtw_alloc_xmitframe(struct xmit_priv * pxmitpriv)1247 struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)
1248 /* _queue *pfree_xmit_queue) */
1249 {
1250 /*
1251 * Please remember to use all the osdep_service api,
1252 * and lock/unlock or _enter/_exit critical to protect
1253 * pfree_xmit_queue
1254 */
1255 struct xmit_frame *pxframe;
1256 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1257
1258 spin_lock_bh(&pfree_xmit_queue->lock);
1259 pxframe = list_first_entry_or_null(&pfree_xmit_queue->queue,
1260 struct xmit_frame, list);
1261 if (!pxframe) {
1262 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1263 ("rtw_alloc_xmitframe:%d\n",
1264 pxmitpriv->free_xmitframe_cnt));
1265 } else {
1266 list_del_init(&pxframe->list);
1267
1268 /* default value setting */
1269 pxmitpriv->free_xmitframe_cnt--;
1270
1271 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1272 ("rtw_alloc_xmitframe():free_xmitframe_cnt=%d\n",
1273 pxmitpriv->free_xmitframe_cnt));
1274
1275 pxframe->buf_addr = NULL;
1276 pxframe->pxmitbuf = NULL;
1277
1278 memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib));
1279
1280 pxframe->frame_tag = DATA_FRAMETAG;
1281
1282 pxframe->pkt = NULL;
1283 pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */
1284
1285 pxframe->agg_num = 1;
1286 pxframe->ack_report = 0;
1287 }
1288 spin_unlock_bh(&pfree_xmit_queue->lock);
1289
1290 return pxframe;
1291 }
1292
rtw_free_xmitframe(struct xmit_priv * pxmitpriv,struct xmit_frame * pxmitframe)1293 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
1294 {
1295 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1296 struct adapter *padapter = pxmitpriv->adapter;
1297 struct sk_buff *pndis_pkt = NULL;
1298
1299 if (!pxmitframe) {
1300 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====== %s:pxmitframe == NULL!!!!!!!!!!\n", __func__));
1301 goto exit;
1302 }
1303
1304 spin_lock_bh(&pfree_xmit_queue->lock);
1305
1306 list_del_init(&pxmitframe->list);
1307
1308 if (pxmitframe->pkt) {
1309 pndis_pkt = pxmitframe->pkt;
1310 pxmitframe->pkt = NULL;
1311 }
1312
1313 list_add_tail(&pxmitframe->list, get_list_head(pfree_xmit_queue));
1314
1315 pxmitpriv->free_xmitframe_cnt++;
1316 RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("%s:free_xmitframe_cnt=%d\n", __func__, pxmitpriv->free_xmitframe_cnt));
1317
1318 spin_unlock_bh(&pfree_xmit_queue->lock);
1319
1320 if (pndis_pkt)
1321 rtw_os_pkt_complete(padapter, pndis_pkt);
1322
1323 exit:
1324 return _SUCCESS;
1325 }
1326
rtw_free_xmitframe_queue(struct xmit_priv * pxmitpriv,struct __queue * pframequeue)1327 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
1328 {
1329 struct list_head *plist, *phead;
1330 struct xmit_frame *pxmitframe;
1331
1332 spin_lock_bh(&pframequeue->lock);
1333
1334 phead = get_list_head(pframequeue);
1335 plist = phead->next;
1336
1337 while (phead != plist) {
1338 pxmitframe = container_of(plist, struct xmit_frame, list);
1339
1340 plist = plist->next;
1341
1342 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1343 }
1344 spin_unlock_bh(&pframequeue->lock);
1345 }
1346
rtw_xmitframe_enqueue(struct adapter * padapter,struct xmit_frame * pxmitframe)1347 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
1348 {
1349 if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL) {
1350 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
1351 ("%s: drop xmit pkt for classifier fail\n", __func__));
1352 return _FAIL;
1353 }
1354
1355 return _SUCCESS;
1356 }
1357
dequeue_one_xmitframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit,struct tx_servq * ptxservq,struct __queue * pframe_queue)1358 static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit, struct tx_servq *ptxservq, struct __queue *pframe_queue)
1359 {
1360 struct list_head *xmitframe_plist, *xmitframe_phead;
1361 struct xmit_frame *pxmitframe = NULL;
1362
1363 xmitframe_phead = get_list_head(pframe_queue);
1364 xmitframe_plist = xmitframe_phead->next;
1365
1366 if (xmitframe_phead != xmitframe_plist) {
1367 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1368
1369 xmitframe_plist = xmitframe_plist->next;
1370
1371 list_del_init(&pxmitframe->list);
1372
1373 ptxservq->qcnt--;
1374 }
1375 return pxmitframe;
1376 }
1377
rtw_dequeue_xframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit_i,int entry)1378 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i, int entry)
1379 {
1380 struct list_head *sta_plist, *sta_phead;
1381 struct hw_xmit *phwxmit;
1382 struct tx_servq *ptxservq = NULL;
1383 struct __queue *pframe_queue = NULL;
1384 struct xmit_frame *pxmitframe = NULL;
1385 struct adapter *padapter = pxmitpriv->adapter;
1386 struct registry_priv *pregpriv = &padapter->registrypriv;
1387 int i, inx[4];
1388
1389 inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
1390
1391 if (pregpriv->wifi_spec == 1) {
1392 int j;
1393
1394 for (j = 0; j < 4; j++)
1395 inx[j] = pxmitpriv->wmm_para_seq[j];
1396 }
1397
1398 spin_lock_bh(&pxmitpriv->lock);
1399
1400 for (i = 0; i < entry; i++) {
1401 phwxmit = phwxmit_i + inx[i];
1402
1403 sta_phead = get_list_head(phwxmit->sta_queue);
1404 sta_plist = sta_phead->next;
1405
1406 while (sta_phead != sta_plist) {
1407 ptxservq = container_of(sta_plist, struct tx_servq, tx_pending);
1408
1409 pframe_queue = &ptxservq->sta_pending;
1410
1411 pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue);
1412
1413 if (pxmitframe) {
1414 phwxmit->accnt--;
1415
1416 /* Remove sta node when there are no pending packets. */
1417 if (list_empty(&pframe_queue->queue)) /* must be done after get_next and before break */
1418 list_del_init(&ptxservq->tx_pending);
1419 goto exit;
1420 }
1421
1422 sta_plist = sta_plist->next;
1423 }
1424 }
1425 exit:
1426 spin_unlock_bh(&pxmitpriv->lock);
1427 return pxmitframe;
1428 }
1429
rtw_get_sta_pending(struct adapter * padapter,struct sta_info * psta,int up,u8 * ac)1430 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter,
1431 struct sta_info *psta, int up, u8 *ac)
1432 {
1433 struct tx_servq *ptxservq;
1434
1435 switch (up) {
1436 case 1:
1437 case 2:
1438 ptxservq = &psta->sta_xmitpriv.bk_q;
1439 *(ac) = 3;
1440 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1441 ("%s : BK\n", __func__));
1442 break;
1443 case 4:
1444 case 5:
1445 ptxservq = &psta->sta_xmitpriv.vi_q;
1446 *(ac) = 1;
1447 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1448 ("%s : VI\n", __func__));
1449 break;
1450 case 6:
1451 case 7:
1452 ptxservq = &psta->sta_xmitpriv.vo_q;
1453 *(ac) = 0;
1454 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1455 ("%s : VO\n", __func__));
1456 break;
1457 case 0:
1458 case 3:
1459 default:
1460 ptxservq = &psta->sta_xmitpriv.be_q;
1461 *(ac) = 2;
1462 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1463 ("%s : BE\n", __func__));
1464 break;
1465 }
1466
1467 return ptxservq;
1468 }
1469
1470 /*
1471 * Will enqueue pxmitframe to the proper queue,
1472 * and indicate it to xx_pending list.....
1473 */
rtw_xmit_classifier(struct adapter * padapter,struct xmit_frame * pxmitframe)1474 s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
1475 {
1476 u8 ac_index;
1477 struct sta_info *psta;
1478 struct tx_servq *ptxservq;
1479 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1480 struct sta_priv *pstapriv = &padapter->stapriv;
1481 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1482 int res = _SUCCESS;
1483
1484 if (pattrib->psta)
1485 psta = pattrib->psta;
1486 else
1487 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1488
1489 if (!psta) {
1490 res = _FAIL;
1491 DBG_88E("%s: psta == NULL\n", __func__);
1492 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: psta == NULL\n", __func__));
1493 goto exit;
1494 }
1495
1496 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1497
1498 if (list_empty(&ptxservq->tx_pending))
1499 list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
1500
1501 list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
1502 ptxservq->qcnt++;
1503 phwxmits[ac_index].accnt++;
1504 exit:
1505 return res;
1506 }
1507
rtw_alloc_hwxmits(struct adapter * padapter)1508 s32 rtw_alloc_hwxmits(struct adapter *padapter)
1509 {
1510 struct hw_xmit *hwxmits;
1511 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1512
1513 pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
1514
1515 pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry,
1516 sizeof(struct hw_xmit), GFP_KERNEL);
1517 if (!pxmitpriv->hwxmits)
1518 return _FAIL;
1519
1520 hwxmits = pxmitpriv->hwxmits;
1521
1522 hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
1523 hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
1524 hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
1525 hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1526 return _SUCCESS;
1527 }
1528
rtw_free_hwxmits(struct adapter * padapter)1529 void rtw_free_hwxmits(struct adapter *padapter)
1530 {
1531 struct hw_xmit *hwxmits;
1532 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1533
1534 hwxmits = pxmitpriv->hwxmits;
1535 kfree(hwxmits);
1536 }
1537
rtw_init_hwxmits(struct hw_xmit * phwxmit,int entry)1538 void rtw_init_hwxmits(struct hw_xmit *phwxmit, int entry)
1539 {
1540 int i;
1541
1542 for (i = 0; i < entry; i++, phwxmit++)
1543 phwxmit->accnt = 0;
1544 }
1545
rtw_get_ff_hwaddr(struct xmit_frame * pxmitframe)1546 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
1547 {
1548 u32 addr;
1549 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1550
1551 switch (pattrib->qsel) {
1552 case 0:
1553 case 3:
1554 addr = BE_QUEUE_INX;
1555 break;
1556 case 1:
1557 case 2:
1558 addr = BK_QUEUE_INX;
1559 break;
1560 case 4:
1561 case 5:
1562 addr = VI_QUEUE_INX;
1563 break;
1564 case 6:
1565 case 7:
1566 addr = VO_QUEUE_INX;
1567 break;
1568 case 0x10:
1569 addr = BCN_QUEUE_INX;
1570 break;
1571 case 0x11:/* BC/MC in PS (HIQ) */
1572 addr = HIGH_QUEUE_INX;
1573 break;
1574 case 0x12:
1575 default:
1576 addr = MGT_QUEUE_INX;
1577 break;
1578 }
1579
1580 return addr;
1581 }
1582
1583 /*
1584 * The main transmit(tx) entry
1585 *
1586 * Return
1587 * 1 enqueue
1588 * 0 success, hardware will handle this xmit frame(packet)
1589 * <0 fail
1590 */
rtw_xmit(struct adapter * padapter,struct sk_buff ** ppkt)1591 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **ppkt)
1592 {
1593 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1594 struct xmit_frame *pxmitframe = NULL;
1595 s32 res;
1596
1597 pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
1598 if (!pxmitframe) {
1599 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: no more pxmitframe\n", __func__));
1600 DBG_88E("DBG_TX_DROP_FRAME %s no more pxmitframe\n", __func__);
1601 return -1;
1602 }
1603
1604 res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
1605
1606 if (res == _FAIL) {
1607 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: update attrib fail\n", __func__));
1608 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1609 return -1;
1610 }
1611 pxmitframe->pkt = *ppkt;
1612
1613 led_control_8188eu(padapter, LED_CTL_TX);
1614
1615 pxmitframe->attrib.qsel = pxmitframe->attrib.priority;
1616
1617 #ifdef CONFIG_88EU_AP_MODE
1618 spin_lock_bh(&pxmitpriv->lock);
1619 if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe)) {
1620 spin_unlock_bh(&pxmitpriv->lock);
1621 return 1;
1622 }
1623 spin_unlock_bh(&pxmitpriv->lock);
1624 #endif
1625
1626 if (!rtw_hal_xmit(padapter, pxmitframe))
1627 return 1;
1628
1629 return 0;
1630 }
1631
1632 #if defined(CONFIG_88EU_AP_MODE)
1633
xmitframe_enqueue_for_sleeping_sta(struct adapter * padapter,struct xmit_frame * pxmitframe)1634 int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
1635 {
1636 int ret = false;
1637 struct sta_info *psta = NULL;
1638 struct sta_priv *pstapriv = &padapter->stapriv;
1639 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1640 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1641 bool mcast = is_multicast_ether_addr(pattrib->ra);
1642
1643 if (!check_fwstate(pmlmepriv, WIFI_AP_STATE))
1644 return ret;
1645
1646 if (pattrib->psta)
1647 psta = pattrib->psta;
1648 else
1649 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1650
1651 if (!psta)
1652 return ret;
1653
1654 if (pattrib->triggered == 1) {
1655 if (mcast)
1656 pattrib->qsel = 0x11;/* HIQ */
1657 return ret;
1658 }
1659
1660 if (mcast) {
1661 spin_lock_bh(&psta->sleep_q.lock);
1662
1663 if (pstapriv->sta_dz_bitmap) {/* if any one sta is in ps mode */
1664 list_del_init(&pxmitframe->list);
1665
1666 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1667
1668 psta->sleepq_len++;
1669
1670 pstapriv->tim_bitmap |= BIT(0);/* */
1671 pstapriv->sta_dz_bitmap |= BIT(0);
1672
1673 update_beacon(padapter, _TIM_IE_, NULL, false);/* tx bc/mc packets after update bcn */
1674
1675 ret = true;
1676 }
1677
1678 spin_unlock_bh(&psta->sleep_q.lock);
1679
1680 return ret;
1681 }
1682
1683 spin_lock_bh(&psta->sleep_q.lock);
1684
1685 if (psta->state & WIFI_SLEEP_STATE) {
1686 u8 wmmps_ac = 0;
1687
1688 if (pstapriv->sta_dz_bitmap & BIT(psta->aid)) {
1689 list_del_init(&pxmitframe->list);
1690
1691 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1692
1693 psta->sleepq_len++;
1694
1695 switch (pattrib->priority) {
1696 case 1:
1697 case 2:
1698 wmmps_ac = psta->uapsd_bk & BIT(0);
1699 break;
1700 case 4:
1701 case 5:
1702 wmmps_ac = psta->uapsd_vi & BIT(0);
1703 break;
1704 case 6:
1705 case 7:
1706 wmmps_ac = psta->uapsd_vo & BIT(0);
1707 break;
1708 case 0:
1709 case 3:
1710 default:
1711 wmmps_ac = psta->uapsd_be & BIT(0);
1712 break;
1713 }
1714
1715 if (wmmps_ac)
1716 psta->sleepq_ac_len++;
1717
1718 if (((psta->has_legacy_ac) && (!wmmps_ac)) ||
1719 ((!psta->has_legacy_ac) && (wmmps_ac))) {
1720 pstapriv->tim_bitmap |= BIT(psta->aid);
1721
1722 if (psta->sleepq_len == 1) {
1723 /* update BCN for TIM IE */
1724 update_beacon(padapter, _TIM_IE_, NULL, false);
1725 }
1726 }
1727 ret = true;
1728 }
1729 }
1730
1731 spin_unlock_bh(&psta->sleep_q.lock);
1732
1733 return ret;
1734 }
1735
dequeue_xmitframes_to_sleeping_queue(struct adapter * padapter,struct sta_info * psta,struct __queue * pframequeue)1736 static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
1737 {
1738 struct list_head *plist, *phead;
1739 u8 ac_index;
1740 struct tx_servq *ptxservq;
1741 struct pkt_attrib *pattrib;
1742 struct xmit_frame *pxmitframe;
1743 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1744
1745 phead = get_list_head(pframequeue);
1746 plist = phead->next;
1747
1748 while (phead != plist) {
1749 pxmitframe = container_of(plist, struct xmit_frame, list);
1750
1751 plist = plist->next;
1752
1753 xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
1754
1755 pattrib = &pxmitframe->attrib;
1756
1757 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1758
1759 ptxservq->qcnt--;
1760 phwxmits[ac_index].accnt--;
1761 }
1762 }
1763
stop_sta_xmit(struct adapter * padapter,struct sta_info * psta)1764 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
1765 {
1766 struct sta_info *psta_bmc;
1767 struct sta_xmit_priv *pstaxmitpriv;
1768 struct sta_priv *pstapriv = &padapter->stapriv;
1769 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1770
1771 pstaxmitpriv = &psta->sta_xmitpriv;
1772
1773 /* for BC/MC Frames */
1774 psta_bmc = rtw_get_bcmc_stainfo(padapter);
1775
1776 spin_lock_bh(&pxmitpriv->lock);
1777
1778 psta->state |= WIFI_SLEEP_STATE;
1779
1780 pstapriv->sta_dz_bitmap |= BIT(psta->aid);
1781
1782 dequeue_xmitframes_to_sleeping_queue(padapter, psta,
1783 &pstaxmitpriv->vo_q.sta_pending);
1784 list_del_init(&pstaxmitpriv->vo_q.tx_pending);
1785
1786 dequeue_xmitframes_to_sleeping_queue(padapter, psta,
1787 &pstaxmitpriv->vi_q.sta_pending);
1788 list_del_init(&pstaxmitpriv->vi_q.tx_pending);
1789
1790 dequeue_xmitframes_to_sleeping_queue(padapter, psta,
1791 &pstaxmitpriv->be_q.sta_pending);
1792 list_del_init(&pstaxmitpriv->be_q.tx_pending);
1793
1794 dequeue_xmitframes_to_sleeping_queue(padapter, psta,
1795 &pstaxmitpriv->bk_q.sta_pending);
1796 list_del_init(&pstaxmitpriv->bk_q.tx_pending);
1797
1798 /* for BC/MC Frames */
1799 pstaxmitpriv = &psta_bmc->sta_xmitpriv;
1800 dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc,
1801 &pstaxmitpriv->be_q.sta_pending);
1802 list_del_init(&pstaxmitpriv->be_q.tx_pending);
1803
1804 spin_unlock_bh(&pxmitpriv->lock);
1805 }
1806
wakeup_sta_to_xmit(struct adapter * padapter,struct sta_info * psta)1807 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
1808 {
1809 u8 update_mask = 0, wmmps_ac = 0;
1810 struct sta_info *psta_bmc;
1811 struct list_head *xmitframe_plist, *xmitframe_phead;
1812 struct xmit_frame *pxmitframe = NULL;
1813 struct sta_priv *pstapriv = &padapter->stapriv;
1814
1815 spin_lock_bh(&psta->sleep_q.lock);
1816
1817 xmitframe_phead = get_list_head(&psta->sleep_q);
1818 xmitframe_plist = xmitframe_phead->next;
1819
1820 while (xmitframe_phead != xmitframe_plist) {
1821 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1822
1823 xmitframe_plist = xmitframe_plist->next;
1824
1825 list_del_init(&pxmitframe->list);
1826
1827 switch (pxmitframe->attrib.priority) {
1828 case 1:
1829 case 2:
1830 wmmps_ac = psta->uapsd_bk & BIT(1);
1831 break;
1832 case 4:
1833 case 5:
1834 wmmps_ac = psta->uapsd_vi & BIT(1);
1835 break;
1836 case 6:
1837 case 7:
1838 wmmps_ac = psta->uapsd_vo & BIT(1);
1839 break;
1840 case 0:
1841 case 3:
1842 default:
1843 wmmps_ac = psta->uapsd_be & BIT(1);
1844 break;
1845 }
1846
1847 psta->sleepq_len--;
1848 if (psta->sleepq_len > 0)
1849 pxmitframe->attrib.mdata = 1;
1850 else
1851 pxmitframe->attrib.mdata = 0;
1852
1853 if (wmmps_ac) {
1854 psta->sleepq_ac_len--;
1855 if (psta->sleepq_ac_len > 0) {
1856 pxmitframe->attrib.mdata = 1;
1857 pxmitframe->attrib.eosp = 0;
1858 } else {
1859 pxmitframe->attrib.mdata = 0;
1860 pxmitframe->attrib.eosp = 1;
1861 }
1862 }
1863
1864 pxmitframe->attrib.triggered = 1;
1865
1866 spin_unlock_bh(&psta->sleep_q.lock);
1867 if (rtw_hal_xmit(padapter, pxmitframe))
1868 rtw_os_xmit_complete(padapter, pxmitframe);
1869 spin_lock_bh(&psta->sleep_q.lock);
1870 }
1871
1872 if (psta->sleepq_len == 0) {
1873 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1874
1875 update_mask = BIT(0);
1876
1877 if (psta->state & WIFI_SLEEP_STATE)
1878 psta->state ^= WIFI_SLEEP_STATE;
1879
1880 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1881 psta->expire_to = pstapriv->expire_to;
1882 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1883 }
1884
1885 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
1886 }
1887
1888 spin_unlock_bh(&psta->sleep_q.lock);
1889
1890 /* for BC/MC Frames */
1891 psta_bmc = rtw_get_bcmc_stainfo(padapter);
1892 if (!psta_bmc)
1893 return;
1894
1895 if ((pstapriv->sta_dz_bitmap & 0xfffe) == 0x0) { /* no any sta in ps mode */
1896 spin_lock_bh(&psta_bmc->sleep_q.lock);
1897
1898 xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
1899 xmitframe_plist = xmitframe_phead->next;
1900
1901 while (xmitframe_phead != xmitframe_plist) {
1902 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1903
1904 xmitframe_plist = xmitframe_plist->next;
1905
1906 list_del_init(&pxmitframe->list);
1907
1908 psta_bmc->sleepq_len--;
1909 if (psta_bmc->sleepq_len > 0)
1910 pxmitframe->attrib.mdata = 1;
1911 else
1912 pxmitframe->attrib.mdata = 0;
1913
1914 pxmitframe->attrib.triggered = 1;
1915
1916 spin_unlock_bh(&psta_bmc->sleep_q.lock);
1917 if (rtw_hal_xmit(padapter, pxmitframe))
1918 rtw_os_xmit_complete(padapter, pxmitframe);
1919 spin_lock_bh(&psta_bmc->sleep_q.lock);
1920 }
1921
1922 if (psta_bmc->sleepq_len == 0) {
1923 pstapriv->tim_bitmap &= ~BIT(0);
1924 pstapriv->sta_dz_bitmap &= ~BIT(0);
1925
1926 update_mask |= BIT(1);
1927 }
1928
1929 spin_unlock_bh(&psta_bmc->sleep_q.lock);
1930 }
1931
1932 if (update_mask)
1933 update_beacon(padapter, _TIM_IE_, NULL, false);
1934 }
1935
xmit_delivery_enabled_frames(struct adapter * padapter,struct sta_info * psta)1936 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
1937 {
1938 u8 wmmps_ac = 0;
1939 struct list_head *xmitframe_plist, *xmitframe_phead;
1940 struct xmit_frame *pxmitframe = NULL;
1941 struct sta_priv *pstapriv = &padapter->stapriv;
1942
1943 spin_lock_bh(&psta->sleep_q.lock);
1944
1945 xmitframe_phead = get_list_head(&psta->sleep_q);
1946 xmitframe_plist = xmitframe_phead->next;
1947
1948 while (xmitframe_phead != xmitframe_plist) {
1949 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1950
1951 xmitframe_plist = xmitframe_plist->next;
1952
1953 switch (pxmitframe->attrib.priority) {
1954 case 1:
1955 case 2:
1956 wmmps_ac = psta->uapsd_bk & BIT(1);
1957 break;
1958 case 4:
1959 case 5:
1960 wmmps_ac = psta->uapsd_vi & BIT(1);
1961 break;
1962 case 6:
1963 case 7:
1964 wmmps_ac = psta->uapsd_vo & BIT(1);
1965 break;
1966 case 0:
1967 case 3:
1968 default:
1969 wmmps_ac = psta->uapsd_be & BIT(1);
1970 break;
1971 }
1972
1973 if (!wmmps_ac)
1974 continue;
1975
1976 list_del_init(&pxmitframe->list);
1977
1978 psta->sleepq_len--;
1979 psta->sleepq_ac_len--;
1980
1981 if (psta->sleepq_ac_len > 0) {
1982 pxmitframe->attrib.mdata = 1;
1983 pxmitframe->attrib.eosp = 0;
1984 } else {
1985 pxmitframe->attrib.mdata = 0;
1986 pxmitframe->attrib.eosp = 1;
1987 }
1988
1989 pxmitframe->attrib.triggered = 1;
1990
1991 if (rtw_hal_xmit(padapter, pxmitframe))
1992 rtw_os_xmit_complete(padapter, pxmitframe);
1993
1994 if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
1995 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1996
1997 /* update BCN for TIM IE */
1998 update_beacon(padapter, _TIM_IE_, NULL, false);
1999 }
2000 }
2001
2002 spin_unlock_bh(&psta->sleep_q.lock);
2003 }
2004
2005 #endif
2006
rtw_sctx_init(struct submit_ctx * sctx,int timeout_ms)2007 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
2008 {
2009 sctx->timeout_ms = timeout_ms;
2010 sctx->submit_time = jiffies;
2011 init_completion(&sctx->done);
2012 sctx->status = RTW_SCTX_SUBMITTED;
2013 }
2014
rtw_sctx_wait(struct submit_ctx * sctx)2015 int rtw_sctx_wait(struct submit_ctx *sctx)
2016 {
2017 int ret = _FAIL;
2018 unsigned long expire;
2019 int status = 0;
2020
2021 expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
2022 if (!wait_for_completion_timeout(&sctx->done, expire)) {
2023 /* timeout, do something?? */
2024 status = RTW_SCTX_DONE_TIMEOUT;
2025 DBG_88E("%s timeout\n", __func__);
2026 } else {
2027 status = sctx->status;
2028 }
2029
2030 if (status == RTW_SCTX_DONE_SUCCESS)
2031 ret = _SUCCESS;
2032
2033 return ret;
2034 }
2035
rtw_sctx_chk_warning_status(int status)2036 static bool rtw_sctx_chk_warning_status(int status)
2037 {
2038 switch (status) {
2039 case RTW_SCTX_DONE_UNKNOWN:
2040 case RTW_SCTX_DONE_BUF_ALLOC:
2041 case RTW_SCTX_DONE_BUF_FREE:
2042
2043 case RTW_SCTX_DONE_DRV_STOP:
2044 case RTW_SCTX_DONE_DEV_REMOVE:
2045 return true;
2046 default:
2047 return false;
2048 }
2049 }
2050
rtw_sctx_done_err(struct submit_ctx ** sctx,int status)2051 void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
2052 {
2053 if (*sctx) {
2054 if (rtw_sctx_chk_warning_status(status))
2055 DBG_88E("%s status:%d\n", __func__, status);
2056 (*sctx)->status = status;
2057 complete(&((*sctx)->done));
2058 *sctx = NULL;
2059 }
2060 }
2061
rtw_ack_tx_wait(struct xmit_priv * pxmitpriv,u32 timeout_ms)2062 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
2063 {
2064 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2065
2066 pack_tx_ops->submit_time = jiffies;
2067 pack_tx_ops->timeout_ms = timeout_ms;
2068 pack_tx_ops->status = RTW_SCTX_SUBMITTED;
2069
2070 return rtw_sctx_wait(pack_tx_ops);
2071 }
2072
rtw_ack_tx_done(struct xmit_priv * pxmitpriv,int status)2073 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status)
2074 {
2075 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2076
2077 if (pxmitpriv->ack_tx)
2078 rtw_sctx_done_err(&pack_tx_ops, status);
2079 else
2080 DBG_88E("%s ack_tx not set\n", __func__);
2081 }
2082
