1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
16 #include <osdep_service.h>
17 #include <drv_types.h>
18 #include <recv_osdep.h>
19 #include <mlme_osdep.h>
21 #include <linux/if_ether.h>
23 #include <linux/ieee80211.h>
25 #include <rtl8723a_recv.h>
26 #include <rtl8723a_xmit.h>
28 void rtw_signal_stat_timer_hdl23a(unsigned long data);
30 void _rtw_init_sta_recv_priv23a(struct sta_recv_priv *psta_recvpriv)
35 spin_lock_init(&psta_recvpriv->lock);
37 /* for (i = 0; i<MAX_RX_NUMBLKS; i++) */
38 /* _rtw_init_queue23a(&psta_recvpriv->blk_strms[i]); */
40 _rtw_init_queue23a(&psta_recvpriv->defrag_q);
45 int _rtw_init_recv_priv23a(struct recv_priv *precvpriv,
46 struct rtw_adapter *padapter)
48 struct recv_frame *precvframe;
52 spin_lock_init(&precvpriv->lock);
54 _rtw_init_queue23a(&precvpriv->free_recv_queue);
55 _rtw_init_queue23a(&precvpriv->recv_pending_queue);
56 _rtw_init_queue23a(&precvpriv->uc_swdec_pending_queue);
58 precvpriv->adapter = padapter;
60 for (i = 0; i < NR_RECVFRAME ; i++) {
61 precvframe = kzalloc(sizeof(struct recv_frame), GFP_KERNEL);
64 INIT_LIST_HEAD(&precvframe->list);
66 list_add_tail(&precvframe->list,
67 &precvpriv->free_recv_queue.queue);
69 precvframe->adapter = padapter;
73 precvpriv->free_recvframe_cnt = i;
74 precvpriv->rx_pending_cnt = 1;
76 res = rtl8723au_init_recv_priv(padapter);
78 setup_timer(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl23a,
79 (unsigned long)padapter);
81 precvpriv->signal_stat_sampling_interval = 1000; /* ms */
83 rtw_set_signal_stat_timer(precvpriv);
88 void _rtw_free_recv_priv23a (struct recv_priv *precvpriv)
90 struct rtw_adapter *padapter = precvpriv->adapter;
91 struct recv_frame *precvframe;
92 struct list_head *plist, *ptmp;
94 rtw_free_uc_swdec_pending_queue23a(padapter);
96 list_for_each_safe(plist, ptmp, &precvpriv->free_recv_queue.queue) {
97 precvframe = container_of(plist, struct recv_frame, list);
98 list_del_init(&precvframe->list);
102 rtl8723au_free_recv_priv(padapter);
105 struct recv_frame *rtw_alloc_recvframe23a(struct rtw_queue *pfree_recv_queue)
107 struct recv_frame *pframe;
108 struct list_head *plist, *phead;
109 struct rtw_adapter *padapter;
110 struct recv_priv *precvpriv;
112 spin_lock_bh(&pfree_recv_queue->lock);
114 if (list_empty(&pfree_recv_queue->queue))
117 phead = get_list_head(pfree_recv_queue);
121 pframe = container_of(plist, struct recv_frame, list);
123 list_del_init(&pframe->list);
124 padapter = pframe->adapter;
126 precvpriv = &padapter->recvpriv;
127 if (pfree_recv_queue == &precvpriv->free_recv_queue)
128 precvpriv->free_recvframe_cnt--;
132 spin_unlock_bh(&pfree_recv_queue->lock);
137 int rtw_free_recvframe23a(struct recv_frame *precvframe)
139 struct rtw_adapter *padapter = precvframe->adapter;
140 struct recv_priv *precvpriv = &padapter->recvpriv;
141 struct rtw_queue *pfree_recv_queue;
143 if (precvframe->pkt) {
144 dev_kfree_skb_any(precvframe->pkt);/* free skb by driver */
145 precvframe->pkt = NULL;
148 pfree_recv_queue = &precvpriv->free_recv_queue;
149 spin_lock_bh(&pfree_recv_queue->lock);
151 list_del_init(&precvframe->list);
153 list_add_tail(&precvframe->list, get_list_head(pfree_recv_queue));
156 if (pfree_recv_queue == &precvpriv->free_recv_queue)
157 precvpriv->free_recvframe_cnt++;
160 spin_unlock_bh(&pfree_recv_queue->lock);
167 int rtw_enqueue_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *queue)
169 struct rtw_adapter *padapter = precvframe->adapter;
170 struct recv_priv *precvpriv = &padapter->recvpriv;
172 spin_lock_bh(&queue->lock);
174 list_del_init(&precvframe->list);
176 list_add_tail(&precvframe->list, get_list_head(queue));
179 if (queue == &precvpriv->free_recv_queue)
180 precvpriv->free_recvframe_cnt++;
183 spin_unlock_bh(&queue->lock);
189 caller : defrag ; recvframe_chk_defrag23a in recv_thread (passive)
190 pframequeue: defrag_queue : will be accessed in recv_thread (passive)
192 using spinlock to protect
196 static void rtw_free_recvframe23a_queue(struct rtw_queue *pframequeue)
198 struct recv_frame *hdr;
199 struct list_head *plist, *phead, *ptmp;
201 spin_lock(&pframequeue->lock);
203 phead = get_list_head(pframequeue);
206 list_for_each_safe(plist, ptmp, phead) {
207 hdr = container_of(plist, struct recv_frame, list);
208 rtw_free_recvframe23a(hdr);
211 spin_unlock(&pframequeue->lock);
214 u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter)
217 struct recv_frame *pending_frame;
219 while ((pending_frame = rtw_alloc_recvframe23a(&adapter->recvpriv.uc_swdec_pending_queue))) {
220 rtw_free_recvframe23a(pending_frame);
221 DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__);
228 int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue)
230 spin_lock_bh(&queue->lock);
232 list_del_init(&precvbuf->list);
233 list_add(&precvbuf->list, get_list_head(queue));
235 spin_unlock_bh(&queue->lock);
240 int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue)
244 spin_lock_irqsave(&queue->lock, irqL);
246 list_del_init(&precvbuf->list);
248 list_add_tail(&precvbuf->list, get_list_head(queue));
249 spin_unlock_irqrestore(&queue->lock, irqL);
253 struct recv_buf *rtw_dequeue_recvbuf23a (struct rtw_queue *queue)
256 struct recv_buf *precvbuf;
257 struct list_head *plist, *phead;
259 spin_lock_irqsave(&queue->lock, irqL);
261 if (list_empty(&queue->queue)) {
264 phead = get_list_head(queue);
268 precvbuf = container_of(plist, struct recv_buf, list);
270 list_del_init(&precvbuf->list);
273 spin_unlock_irqrestore(&queue->lock, irqL);
278 int recvframe_chkmic(struct rtw_adapter *adapter,
279 struct recv_frame *precvframe);
280 int recvframe_chkmic(struct rtw_adapter *adapter,
281 struct recv_frame *precvframe) {
283 int i, res = _SUCCESS;
286 u8 bmic_err = false, brpt_micerror = true;
287 u8 *pframe, *payload, *pframemic;
289 /* u8 *iv, rxdata_key_idx = 0; */
290 struct sta_info *stainfo;
291 struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
292 struct security_priv *psecuritypriv = &adapter->securitypriv;
294 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
295 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
298 stainfo = rtw_get_stainfo23a(&adapter->stapriv, &prxattrib->ta[0]);
300 if (prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) {
301 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
302 ("\n recvframe_chkmic:prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP\n"));
303 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
304 ("\n recvframe_chkmic:da = 0x%02x:0x%02x:0x%02x:0x%02x:"
305 "0x%02x:0x%02x\n", prxattrib->ra[0],
306 prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3],
307 prxattrib->ra[4], prxattrib->ra[5]));
309 /* calculate mic code */
310 if (stainfo != NULL) {
311 if (is_multicast_ether_addr(prxattrib->ra)) {
312 mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
314 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
315 ("\n recvframe_chkmic: bcmc key\n"));
317 if (!psecuritypriv->binstallGrpkey) {
319 RT_TRACE(_module_rtl871x_recv_c_,
321 ("\n recvframe_chkmic:didn't "
322 "install group key!!!!!!\n"));
323 DBG_8723A("\n recvframe_chkmic:didn't "
324 "install group key!!!!!!\n");
328 mickey = &stainfo->dot11tkiprxmickey.skey[0];
329 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
330 ("\n recvframe_chkmic: unicast "
334 /* icv_len included the mic code */
335 datalen = precvframe->pkt->len-prxattrib->
336 hdrlen-prxattrib->iv_len-prxattrib->icv_len - 8;
337 pframe = precvframe->pkt->data;
338 payload = pframe + prxattrib->hdrlen +
341 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
342 ("\n prxattrib->iv_len =%d prxattrib->icv_len ="
343 "%d\n", prxattrib->iv_len,
344 prxattrib->icv_len));
346 /* care the length of the data */
347 rtw_seccalctkipmic23a(mickey, pframe, payload,
348 datalen, &miccode[0],
349 (unsigned char)prxattrib->priority);
351 pframemic = payload + datalen;
355 for (i = 0; i < 8; i++) {
356 if (miccode[i] != *(pframemic + i)) {
357 RT_TRACE(_module_rtl871x_recv_c_,
359 ("recvframe_chkmic:miccode"
360 "[%d](%02x) != *(pframemic+"
361 "%d)(%02x) ", i, miccode[i],
362 i, *(pframemic + i)));
367 if (bmic_err == true) {
370 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
371 ("\n *(pframemic-8)-*(pframemic-1) ="
372 "0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
373 "0x%02x:0x%02x:0x%02x\n",
374 *(pframemic - 8), *(pframemic - 7),
375 *(pframemic - 6), *(pframemic - 5),
376 *(pframemic - 4), *(pframemic - 3),
377 *(pframemic - 2), *(pframemic - 1)));
378 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
379 ("\n *(pframemic-16)-*(pframemic-9) ="
380 "0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
381 "0x%02x:0x%02x:0x%02x\n",
382 *(pframemic - 16), *(pframemic - 15),
383 *(pframemic - 14), *(pframemic - 13),
384 *(pframemic - 12), *(pframemic - 11),
385 *(pframemic - 10), *(pframemic - 9)));
387 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
388 ("\n ====== demp packet (len =%d) ======"
389 "\n", precvframe->pkt->len));
390 for (i = 0; i < precvframe->pkt->len; i = i + 8) {
391 RT_TRACE(_module_rtl871x_recv_c_,
392 _drv_err_, ("0x%02x:0x%02x:0x"
396 *(precvframe->pkt->data+i),*(precvframe->pkt->data+i+1),
397 *(precvframe->pkt->data+i+2),*(precvframe->pkt->data+i+3),
398 *(precvframe->pkt->data+i+4),*(precvframe->pkt->data+i+5),
399 *(precvframe->pkt->data+i+6),*(precvframe->pkt->data+i+7)));
401 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
402 ("\n ====== demp packet end [len =%d]"
403 "======\n", precvframe->pkt->len));
404 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
408 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
409 ("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%."
410 "2x 0x%.2x psecuritypriv->"
411 "binstallGrpkey =%d ",
412 prxattrib->ra[0], prxattrib->ra[1],
413 prxattrib->ra[2], prxattrib->ra[3],
414 prxattrib->ra[4], prxattrib->ra[5],
415 psecuritypriv->binstallGrpkey));
417 /* double check key_index for some timing
418 issue, cannot compare with
419 psecuritypriv->dot118021XGrpKeyid also
420 cause timing issue */
421 if ((is_multicast_ether_addr(prxattrib->ra)) &&
422 (prxattrib->key_index !=
423 pmlmeinfo->key_index))
424 brpt_micerror = false;
426 if ((prxattrib->bdecrypted == true) &&
427 (brpt_micerror == true)) {
428 rtw_handle_tkip_mic_err23a(adapter, (u8)is_multicast_ether_addr(prxattrib->ra));
429 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
430 DBG_8723A(" mic error :prxattrib->"
432 prxattrib->bdecrypted);
434 RT_TRACE(_module_rtl871x_recv_c_,
436 (" mic error :prxattrib->"
438 prxattrib->bdecrypted));
439 DBG_8723A(" mic error :prxattrib->"
441 prxattrib->bdecrypted);
447 if (!psecuritypriv->bcheck_grpkey &&
448 is_multicast_ether_addr(prxattrib->ra)) {
449 psecuritypriv->bcheck_grpkey = 1;
450 RT_TRACE(_module_rtl871x_recv_c_,
452 ("psecuritypriv->bcheck_grp"
457 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
458 ("recvframe_chkmic: rtw_get_stainfo23a =="
462 skb_trim(precvframe->pkt, precvframe->pkt->len - 8);
472 /* decrypt and set the ivlen, icvlen of the recv_frame */
473 struct recv_frame *decryptor(struct rtw_adapter *padapter,
474 struct recv_frame *precv_frame);
475 struct recv_frame *decryptor(struct rtw_adapter *padapter,
476 struct recv_frame *precv_frame)
478 struct rx_pkt_attrib *prxattrib = &precv_frame->attrib;
479 struct security_priv *psecuritypriv = &padapter->securitypriv;
480 struct recv_frame *return_packet = precv_frame;
483 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
484 ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n",
485 prxattrib->bdecrypted, prxattrib->encrypt));
487 if (prxattrib->encrypt > 0) {
488 u8 *iv = precv_frame->pkt->data + prxattrib->hdrlen;
490 prxattrib->key_index = (((iv[3]) >> 6) & 0x3);
492 if (prxattrib->key_index > WEP_KEYS) {
493 DBG_8723A("prxattrib->key_index(%d) > WEP_KEYS\n",
494 prxattrib->key_index);
496 switch (prxattrib->encrypt) {
497 case WLAN_CIPHER_SUITE_WEP40:
498 case WLAN_CIPHER_SUITE_WEP104:
499 prxattrib->key_index =
500 psecuritypriv->dot11PrivacyKeyIndex;
502 case WLAN_CIPHER_SUITE_TKIP:
503 case WLAN_CIPHER_SUITE_CCMP:
505 prxattrib->key_index =
506 psecuritypriv->dot118021XGrpKeyid;
512 if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0))) {
513 psecuritypriv->hw_decrypted = 0;
514 switch (prxattrib->encrypt) {
515 case WLAN_CIPHER_SUITE_WEP40:
516 case WLAN_CIPHER_SUITE_WEP104:
517 rtw_wep_decrypt23a(padapter, precv_frame);
519 case WLAN_CIPHER_SUITE_TKIP:
520 res = rtw_tkip_decrypt23a(padapter, precv_frame);
522 case WLAN_CIPHER_SUITE_CCMP:
523 res = rtw_aes_decrypt23a(padapter, precv_frame);
528 } else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 &&
529 (psecuritypriv->busetkipkey == 1 ||
530 prxattrib->encrypt != WLAN_CIPHER_SUITE_TKIP)) {
531 psecuritypriv->hw_decrypted = 1;
535 rtw_free_recvframe23a(return_packet);
536 return_packet = NULL;
541 return return_packet;
544 /* set the security information in the recv_frame */
545 static struct recv_frame *portctrl(struct rtw_adapter *adapter,
546 struct recv_frame *precv_frame)
550 struct recv_frame *pfhdr;
551 struct sta_info *psta;
552 struct sta_priv *pstapriv ;
553 struct recv_frame *prtnframe;
555 u16 eapol_type = ETH_P_PAE;/* for Funia BD's WPA issue */
556 struct rx_pkt_attrib *pattrib;
558 pstapriv = &adapter->stapriv;
560 auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
563 pattrib = &pfhdr->attrib;
564 psta_addr = pattrib->ta;
565 psta = rtw_get_stainfo23a(pstapriv, psta_addr);
567 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
568 ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm ="
569 "%d\n", adapter->securitypriv.dot11AuthAlgrthm));
571 prtnframe = precv_frame;
573 if (auth_alg == dot11AuthAlgrthm_8021X) {
575 ptr = pfhdr->pkt->data + pfhdr->attrib.hdrlen;
577 ether_type = (ptr[6] << 8) | ptr[7];
579 if (psta && psta->ieee8021x_blocked) {
581 /* only accept EAPOL frame */
582 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
583 ("########portctrl:psta->ieee8021x_blocked =="
586 if (ether_type != eapol_type) {
587 /* free this frame */
588 rtw_free_recvframe23a(precv_frame);
597 int recv_decache(struct recv_frame *precv_frame, u8 bretry,
598 struct stainfo_rxcache *prxcache);
599 int recv_decache(struct recv_frame *precv_frame, u8 bretry,
600 struct stainfo_rxcache *prxcache)
602 int tid = precv_frame->attrib.priority;
604 u16 seq_ctrl = ((precv_frame->attrib.seq_num & 0xffff) << 4) |
605 (precv_frame->attrib.frag_num & 0xf);
610 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
611 ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n",
617 if (1) { /* if (bretry) */
618 if (seq_ctrl == prxcache->tid_rxseq[tid]) {
619 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
620 ("recv_decache, seq_ctrl = 0x%x, tid = 0x%x, "
621 "tid_rxseq = 0x%x\n",
622 seq_ctrl, tid, prxcache->tid_rxseq[tid]));
628 prxcache->tid_rxseq[tid] = seq_ctrl;
635 void process23a_pwrbit_data(struct rtw_adapter *padapter,
636 struct recv_frame *precv_frame);
637 void process23a_pwrbit_data(struct rtw_adapter *padapter,
638 struct recv_frame *precv_frame)
640 #ifdef CONFIG_8723AU_AP_MODE
641 unsigned char pwrbit;
642 struct sk_buff *skb = precv_frame->pkt;
643 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
644 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
645 struct sta_priv *pstapriv = &padapter->stapriv;
646 struct sta_info *psta = NULL;
648 psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
651 pwrbit = ieee80211_has_pm(hdr->frame_control);
654 if (!(psta->state & WIFI_SLEEP_STATE))
655 stop_sta_xmit23a(padapter, psta);
657 if (psta->state & WIFI_SLEEP_STATE)
658 wakeup_sta_to_xmit23a(padapter, psta);
665 void process_wmmps_data(struct rtw_adapter *padapter,
666 struct recv_frame *precv_frame);
667 void process_wmmps_data(struct rtw_adapter *padapter,
668 struct recv_frame *precv_frame)
670 #ifdef CONFIG_8723AU_AP_MODE
671 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
672 struct sta_priv *pstapriv = &padapter->stapriv;
673 struct sta_info *psta = NULL;
675 psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
681 if (!psta->qos_option)
684 if (!(psta->qos_info & 0xf))
687 if (psta->state & WIFI_SLEEP_STATE) {
690 switch (pattrib->priority) {
693 wmmps_ac = psta->uapsd_bk & BIT(1);
697 wmmps_ac = psta->uapsd_vi & BIT(1);
701 wmmps_ac = psta->uapsd_vo & BIT(1);
706 wmmps_ac = psta->uapsd_be & BIT(1);
711 if (psta->sleepq_ac_len > 0) {
712 /* process received triggered frame */
713 xmit_delivery_enabled_frames23a(padapter, psta);
715 /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */
716 issue_qos_nulldata23a(padapter, psta->hwaddr,
717 (u16)pattrib->priority,
726 static void count_rx_stats(struct rtw_adapter *padapter,
727 struct recv_frame *prframe, struct sta_info *sta)
730 struct sta_info *psta = NULL;
731 struct stainfo_stats *pstats = NULL;
732 struct rx_pkt_attrib *pattrib = & prframe->attrib;
733 struct recv_priv *precvpriv = &padapter->recvpriv;
735 sz = prframe->pkt->len;
736 precvpriv->rx_bytes += sz;
738 padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
740 if ((!is_broadcast_ether_addr(pattrib->dst)) &&
741 (!is_multicast_ether_addr(pattrib->dst)))
742 padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
747 psta = prframe->psta;
750 pstats = &psta->sta_stats;
752 pstats->rx_data_pkts++;
753 pstats->rx_bytes += sz;
757 static int sta2sta_data_frame(struct rtw_adapter *adapter,
758 struct recv_frame *precv_frame,
759 struct sta_info**psta)
761 struct sk_buff *skb = precv_frame->pkt;
762 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
764 struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
765 struct sta_priv *pstapriv = &adapter->stapriv;
766 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
767 u8 *mybssid = get_bssid(pmlmepriv);
768 u8 *myhwaddr = myid(&adapter->eeprompriv);
770 int bmcast = is_multicast_ether_addr(pattrib->dst);
774 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
775 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
777 /* filter packets that SA is myself or multicast or broadcast */
778 if (ether_addr_equal(myhwaddr, pattrib->src)) {
779 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
780 (" SA == myself\n"));
785 if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
790 if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") ||
791 ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") ||
792 !ether_addr_equal(pattrib->bssid, mybssid)) {
797 sta_addr = pattrib->src;
798 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
799 /* For Station mode, sa and bssid should always be BSSID,
800 and DA is my mac-address */
801 if (!ether_addr_equal(pattrib->bssid, pattrib->src)) {
802 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
803 ("bssid != TA under STATION_MODE; drop "
809 sta_addr = pattrib->bssid;
811 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
813 /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */
814 if (!is_multicast_ether_addr(pattrib->bssid)) {
818 } else { /* not mc-frame */
819 /* For AP mode, if DA is non-MCAST, then it must
820 be BSSID, and bssid == BSSID */
821 if (!ether_addr_equal(pattrib->bssid, pattrib->dst)) {
826 sta_addr = pattrib->src;
828 } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
829 ether_addr_copy(pattrib->dst, hdr->addr1);
830 ether_addr_copy(pattrib->src, hdr->addr2);
831 ether_addr_copy(pattrib->bssid, hdr->addr3);
832 ether_addr_copy(pattrib->ra, pattrib->dst);
833 ether_addr_copy(pattrib->ta, pattrib->src);
841 *psta = rtw_get_bcmc_stainfo23a(adapter);
843 *psta = rtw_get_stainfo23a(pstapriv, sta_addr); /* get ap_info */
846 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
856 int ap2sta_data_frame(struct rtw_adapter *adapter,
857 struct recv_frame *precv_frame,
858 struct sta_info **psta);
859 int ap2sta_data_frame(struct rtw_adapter *adapter,
860 struct recv_frame *precv_frame,
861 struct sta_info **psta)
863 struct sk_buff *skb = precv_frame->pkt;
864 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
865 struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
867 struct sta_priv *pstapriv = &adapter->stapriv;
868 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
869 u8 *mybssid = get_bssid(pmlmepriv);
870 u8 *myhwaddr = myid(&adapter->eeprompriv);
871 int bmcast = is_multicast_ether_addr(pattrib->dst);
875 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) &&
876 (check_fwstate(pmlmepriv, _FW_LINKED) ||
877 check_fwstate(pmlmepriv, _FW_UNDER_LINKING))) {
879 /* filter packets that SA is myself or multicast or broadcast */
880 if (ether_addr_equal(myhwaddr, pattrib->src)) {
881 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
882 (" SA == myself\n"));
887 /* da should be for me */
888 if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
889 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
890 (" ap2sta_data_frame: compare DA fail; DA ="
891 MAC_FMT"\n", MAC_ARG(pattrib->dst)));
897 if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") ||
898 ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") ||
899 !ether_addr_equal(pattrib->bssid, mybssid)) {
900 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
901 (" ap2sta_data_frame: compare BSSID fail ; "
902 "BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
903 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
904 ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
907 DBG_8723A("issue_deauth23a to the nonassociated "
908 "ap =" MAC_FMT " for the reason(7)\n",
909 MAC_ARG(pattrib->bssid));
910 issue_deauth23a(adapter, pattrib->bssid,
911 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
919 *psta = rtw_get_bcmc_stainfo23a(adapter);
922 *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
925 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
926 ("ap2sta: can't get psta under STATION_MODE ;"
932 if (ieee80211_is_nullfunc(hdr->frame_control)) {
933 /* No data, will not indicate to upper layer,
934 temporily count it here */
935 count_rx_stats(adapter, precv_frame, *psta);
936 ret = RTW_RX_HANDLED;
940 } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) &&
941 check_fwstate(pmlmepriv, _FW_LINKED)) {
942 ether_addr_copy(pattrib->dst, hdr->addr1);
943 ether_addr_copy(pattrib->src, hdr->addr2);
944 ether_addr_copy(pattrib->bssid, hdr->addr3);
945 ether_addr_copy(pattrib->ra, pattrib->dst);
946 ether_addr_copy(pattrib->ta, pattrib->src);
949 ether_addr_copy(pattrib->bssid, mybssid);
952 *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
954 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
955 ("can't get psta under MP_MODE ; drop pkt\n"));
959 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
961 ret = RTW_RX_HANDLED;
964 if (ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
965 *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
967 DBG_8723A("issue_deauth23a to the ap =" MAC_FMT
968 " for the reason(7)\n",
969 MAC_ARG(pattrib->bssid));
971 issue_deauth23a(adapter, pattrib->bssid,
972 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
986 int sta2ap_data_frame(struct rtw_adapter *adapter,
987 struct recv_frame *precv_frame,
988 struct sta_info **psta);
989 int sta2ap_data_frame(struct rtw_adapter *adapter,
990 struct recv_frame *precv_frame,
991 struct sta_info **psta)
993 struct sk_buff *skb = precv_frame->pkt;
994 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
995 struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
996 struct sta_priv *pstapriv = &adapter->stapriv;
997 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
998 unsigned char *mybssid = get_bssid(pmlmepriv);
1003 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1004 /* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */
1005 if (!ether_addr_equal(pattrib->bssid, mybssid)) {
1010 *psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
1011 if (*psta == NULL) {
1012 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1013 ("can't get psta under AP_MODE; drop pkt\n"));
1014 DBG_8723A("issue_deauth23a to sta =" MAC_FMT
1015 " for the reason(7)\n",
1016 MAC_ARG(pattrib->src));
1018 issue_deauth23a(adapter, pattrib->src,
1019 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1021 ret = RTW_RX_HANDLED;
1025 process23a_pwrbit_data(adapter, precv_frame);
1027 /* We only get here if it's a data frame, so no need to
1028 * confirm data frame type first */
1029 if (ieee80211_is_data_qos(hdr->frame_control))
1030 process_wmmps_data(adapter, precv_frame);
1032 if (ieee80211_is_nullfunc(hdr->frame_control)) {
1033 /* No data, will not indicate to upper layer,
1034 temporily count it here */
1035 count_rx_stats(adapter, precv_frame, *psta);
1036 ret = RTW_RX_HANDLED;
1040 u8 *myhwaddr = myid(&adapter->eeprompriv);
1042 if (!ether_addr_equal(pattrib->ra, myhwaddr)) {
1043 ret = RTW_RX_HANDLED;
1046 DBG_8723A("issue_deauth23a to sta =" MAC_FMT " for the reason(7)\n",
1047 MAC_ARG(pattrib->src));
1048 issue_deauth23a(adapter, pattrib->src,
1049 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1050 ret = RTW_RX_HANDLED;
1061 static int validate_recv_ctrl_frame(struct rtw_adapter *padapter,
1062 struct recv_frame *precv_frame)
1064 #ifdef CONFIG_8723AU_AP_MODE
1065 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
1066 struct sta_priv *pstapriv = &padapter->stapriv;
1067 struct sk_buff *skb = precv_frame->pkt;
1068 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1070 if (!ieee80211_is_ctl(hdr->frame_control))
1073 /* receive the frames that ra(a1) is my address */
1074 if (!ether_addr_equal(hdr->addr1, myid(&padapter->eeprompriv)))
1077 /* only handle ps-poll */
1078 if (ieee80211_is_pspoll(hdr->frame_control)) {
1079 struct ieee80211_pspoll *psp = (struct ieee80211_pspoll *)hdr;
1082 struct sta_info *psta = NULL;
1084 aid = le16_to_cpu(psp->aid) & 0x3fff;
1085 psta = rtw_get_stainfo23a(pstapriv, hdr->addr2);
1087 if (!psta || psta->aid != aid)
1090 /* for rx pkt statistics */
1091 psta->sta_stats.rx_ctrl_pkts++;
1093 switch (pattrib->priority) {
1096 wmmps_ac = psta->uapsd_bk & BIT(0);
1100 wmmps_ac = psta->uapsd_vi & BIT(0);
1104 wmmps_ac = psta->uapsd_vo & BIT(0);
1109 wmmps_ac = psta->uapsd_be & BIT(0);
1116 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1117 DBG_8723A("%s alive check-rx ps-poll\n", __func__);
1118 psta->expire_to = pstapriv->expire_to;
1119 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1122 if ((psta->state & WIFI_SLEEP_STATE) &&
1123 (pstapriv->sta_dz_bitmap & CHKBIT(psta->aid))) {
1124 struct list_head *xmitframe_plist, *xmitframe_phead;
1125 struct xmit_frame *pxmitframe;
1126 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1128 spin_lock_bh(&pxmitpriv->lock);
1130 xmitframe_phead = get_list_head(&psta->sleep_q);
1131 xmitframe_plist = xmitframe_phead->next;
1133 if (!list_empty(xmitframe_phead)) {
1134 pxmitframe = container_of(xmitframe_plist,
1138 xmitframe_plist = xmitframe_plist->next;
1140 list_del_init(&pxmitframe->list);
1144 if (psta->sleepq_len>0)
1145 pxmitframe->attrib.mdata = 1;
1147 pxmitframe->attrib.mdata = 0;
1149 pxmitframe->attrib.triggered = 1;
1151 /* DBG_8723A("handling ps-poll, q_len =%d, tim =%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */
1153 rtl8723au_hal_xmitframe_enqueue(padapter,
1156 if (psta->sleepq_len == 0) {
1157 pstapriv->tim_bitmap &= ~CHKBIT(psta->aid);
1159 /* DBG_8723A("after handling ps-poll, tim =%x\n", pstapriv->tim_bitmap); */
1161 /* update BCN for TIM IE */
1162 /* update_BCNTIM(padapter); */
1163 update_beacon23a(padapter, WLAN_EID_TIM,
1167 /* spin_unlock_bh(&psta->sleep_q.lock); */
1168 spin_unlock_bh(&pxmitpriv->lock);
1171 /* spin_unlock_bh(&psta->sleep_q.lock); */
1172 spin_unlock_bh(&pxmitpriv->lock);
1174 /* DBG_8723A("no buffered packets to xmit\n"); */
1175 if (pstapriv->tim_bitmap & CHKBIT(psta->aid)) {
1176 if (psta->sleepq_len == 0) {
1177 DBG_8723A("no buffered packets "
1180 /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */
1181 issue_nulldata23a(padapter,
1185 DBG_8723A("error!psta->sleepq"
1188 psta->sleepq_len = 0;
1191 pstapriv->tim_bitmap &= ~CHKBIT(psta->aid);
1193 /* update BCN for TIM IE */
1194 /* update_BCNTIM(padapter); */
1195 update_beacon23a(padapter, WLAN_EID_TIM,
1206 struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
1207 struct recv_frame *precv_frame);
1208 static int validate_recv_mgnt_frame(struct rtw_adapter *padapter,
1209 struct recv_frame *precv_frame)
1211 struct sta_info *psta;
1212 struct sk_buff *skb;
1213 struct ieee80211_hdr *hdr;
1214 /* struct mlme_priv *pmlmepriv = &adapter->mlmepriv; */
1216 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1217 ("+validate_recv_mgnt_frame\n"));
1219 precv_frame = recvframe_chk_defrag23a(padapter, precv_frame);
1220 if (precv_frame == NULL) {
1221 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
1222 ("%s: fragment packet\n", __func__));
1226 skb = precv_frame->pkt;
1227 hdr = (struct ieee80211_hdr *) skb->data;
1229 /* for rx pkt statistics */
1230 psta = rtw_get_stainfo23a(&padapter->stapriv, hdr->addr2);
1232 psta->sta_stats.rx_mgnt_pkts++;
1234 if (ieee80211_is_beacon(hdr->frame_control))
1235 psta->sta_stats.rx_beacon_pkts++;
1236 else if (ieee80211_is_probe_req(hdr->frame_control))
1237 psta->sta_stats.rx_probereq_pkts++;
1238 else if (ieee80211_is_probe_resp(hdr->frame_control)) {
1239 if (ether_addr_equal(padapter->eeprompriv.mac_addr,
1241 psta->sta_stats.rx_probersp_pkts++;
1242 else if (is_broadcast_ether_addr(hdr->addr1) ||
1243 is_multicast_ether_addr(hdr->addr1))
1244 psta->sta_stats.rx_probersp_bm_pkts++;
1246 psta->sta_stats.rx_probersp_uo_pkts++;
1250 mgt_dispatcher23a(padapter, precv_frame);
1255 static int validate_recv_data_frame(struct rtw_adapter *adapter,
1256 struct recv_frame *precv_frame)
1260 struct sta_info *psta = NULL;
1261 struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
1262 struct security_priv *psecuritypriv = &adapter->securitypriv;
1264 struct sk_buff *skb = precv_frame->pkt;
1265 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1269 bretry = ieee80211_has_retry(hdr->frame_control);
1270 pda = ieee80211_get_DA(hdr);
1271 psa = ieee80211_get_SA(hdr);
1273 ether_addr_copy(pattrib->dst, pda);
1274 ether_addr_copy(pattrib->src, psa);
1276 switch (hdr->frame_control &
1277 cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
1278 case cpu_to_le16(0):
1279 ether_addr_copy(pattrib->bssid, hdr->addr3);
1280 ether_addr_copy(pattrib->ra, pda);
1281 ether_addr_copy(pattrib->ta, psa);
1282 ret = sta2sta_data_frame(adapter, precv_frame, &psta);
1285 case cpu_to_le16(IEEE80211_FCTL_FROMDS):
1286 ether_addr_copy(pattrib->bssid, hdr->addr2);
1287 ether_addr_copy(pattrib->ra, pda);
1288 ether_addr_copy(pattrib->ta, hdr->addr2);
1289 ret = ap2sta_data_frame(adapter, precv_frame, &psta);
1292 case cpu_to_le16(IEEE80211_FCTL_TODS):
1293 ether_addr_copy(pattrib->bssid, hdr->addr1);
1294 ether_addr_copy(pattrib->ra, hdr->addr1);
1295 ether_addr_copy(pattrib->ta, psa);
1296 ret = sta2ap_data_frame(adapter, precv_frame, &psta);
1299 case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
1301 * There is no BSSID in this case, but the driver has been
1302 * using addr1 so far, so keep it for now.
1304 ether_addr_copy(pattrib->bssid, hdr->addr1);
1305 ether_addr_copy(pattrib->ra, hdr->addr1);
1306 ether_addr_copy(pattrib->ta, hdr->addr2);
1308 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
1312 if ((ret == _FAIL) || (ret == RTW_RX_HANDLED))
1316 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1317 (" after to_fr_ds_chk; psta == NULL\n"));
1322 /* psta->rssi = prxcmd->rssi; */
1323 /* psta->signal_quality = prxcmd->sq; */
1324 precv_frame->psta = psta;
1326 pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr);
1327 if (ieee80211_has_a4(hdr->frame_control))
1328 pattrib->hdrlen += ETH_ALEN;
1330 /* parsing QC field */
1331 if (pattrib->qos == 1) {
1332 __le16 *qptr = (__le16 *)ieee80211_get_qos_ctl(hdr);
1333 u16 qos_ctrl = le16_to_cpu(*qptr);
1335 pattrib->priority = qos_ctrl & IEEE80211_QOS_CTL_TID_MASK;
1336 pattrib->ack_policy = (qos_ctrl >> 5) & 3;
1338 (qos_ctrl & IEEE80211_QOS_CTL_A_MSDU_PRESENT) >> 7;
1339 pattrib->hdrlen += IEEE80211_QOS_CTL_LEN;
1341 if (pattrib->priority != 0 && pattrib->priority != 3) {
1342 adapter->recvpriv.bIsAnyNonBEPkts = true;
1345 pattrib->priority = 0;
1346 pattrib->ack_policy = 0;
1350 if (pattrib->order) { /* HT-CTRL 11n */
1351 pattrib->hdrlen += 4;
1354 precv_frame->preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority];
1356 /* decache, drop duplicate recv packets */
1357 if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) ==
1359 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1360 ("decache : drop pkt\n"));
1365 if (pattrib->privacy) {
1366 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1367 ("validate_recv_data_frame:pattrib->privacy =%x\n",
1369 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1370 ("\n ^^^^^^^^^^^is_multicast_ether_addr"
1371 "(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n",
1373 is_multicast_ether_addr(pattrib->ra)));
1375 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt,
1376 is_multicast_ether_addr(pattrib->ra));
1378 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1379 ("\n pattrib->encrypt =%d\n", pattrib->encrypt));
1381 switch (pattrib->encrypt) {
1382 case WLAN_CIPHER_SUITE_WEP40:
1383 case WLAN_CIPHER_SUITE_WEP104:
1384 pattrib->iv_len = IEEE80211_WEP_IV_LEN;
1385 pattrib->icv_len = IEEE80211_WEP_ICV_LEN;
1387 case WLAN_CIPHER_SUITE_TKIP:
1388 pattrib->iv_len = IEEE80211_TKIP_IV_LEN;
1389 pattrib->icv_len = IEEE80211_TKIP_ICV_LEN;
1391 case WLAN_CIPHER_SUITE_CCMP:
1392 pattrib->iv_len = IEEE80211_CCMP_HDR_LEN;
1393 pattrib->icv_len = IEEE80211_CCMP_MIC_LEN;
1396 pattrib->iv_len = 0;
1397 pattrib->icv_len = 0;
1401 pattrib->encrypt = 0;
1402 pattrib->iv_len = 0;
1403 pattrib->icv_len = 0;
1413 static void dump_rx_pkt(struct sk_buff *skb, u16 type, int level)
1419 ((level == 2) && (type == IEEE80211_FTYPE_MGMT)) ||
1420 ((level == 3) && (type == IEEE80211_FTYPE_DATA))) {
1424 DBG_8723A("#############################\n");
1426 for (i = 0; i < 64; i = i + 8)
1427 DBG_8723A("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n",
1428 *(ptr + i), *(ptr + i + 1), *(ptr + i + 2),
1429 *(ptr + i + 3), *(ptr + i + 4),
1430 *(ptr + i + 5), *(ptr + i + 6),
1432 DBG_8723A("#############################\n");
1436 static int validate_recv_frame(struct rtw_adapter *adapter,
1437 struct recv_frame *precv_frame)
1439 /* shall check frame subtype, to / from ds, da, bssid */
1441 /* then call check if rx seq/frag. duplicated. */
1444 int retval = _SUCCESS;
1445 struct rx_pkt_attrib *pattrib = & precv_frame->attrib;
1446 struct sk_buff *skb = precv_frame->pkt;
1447 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1452 fctl = le16_to_cpu(hdr->frame_control);
1453 ver = fctl & IEEE80211_FCTL_VERS;
1454 type = fctl & IEEE80211_FCTL_FTYPE;
1455 subtype = fctl & IEEE80211_FCTL_STYPE;
1457 /* add version chk */
1459 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1460 ("validate_recv_data_frame fail! (ver!= 0)\n"));
1465 seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
1466 pattrib->frag_num = seq_ctrl & IEEE80211_SCTL_FRAG;
1467 pattrib->seq_num = seq_ctrl >> 4;
1469 pattrib->pw_save = ieee80211_has_pm(hdr->frame_control);
1470 pattrib->mfrag = ieee80211_has_morefrags(hdr->frame_control);
1471 pattrib->mdata = ieee80211_has_moredata(hdr->frame_control);
1472 pattrib->privacy = ieee80211_has_protected(hdr->frame_control);
1473 pattrib->order = ieee80211_has_order(hdr->frame_control);
1475 GetHalDefVar8192CUsb(adapter, HAL_DEF_DBG_DUMP_RXPKT, &bDumpRxPkt);
1477 if (unlikely(bDumpRxPkt == 1))
1478 dump_rx_pkt(skb, type, bDumpRxPkt);
1481 case IEEE80211_FTYPE_MGMT:
1482 retval = validate_recv_mgnt_frame(adapter, precv_frame);
1483 if (retval == _FAIL) {
1484 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1485 ("validate_recv_mgnt_frame fail\n"));
1487 retval = _FAIL; /* only data frame return _SUCCESS */
1489 case IEEE80211_FTYPE_CTL:
1490 retval = validate_recv_ctrl_frame(adapter, precv_frame);
1491 if (retval == _FAIL) {
1492 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1493 ("validate_recv_ctrl_frame fail\n"));
1495 retval = _FAIL; /* only data frame return _SUCCESS */
1497 case IEEE80211_FTYPE_DATA:
1498 pattrib->qos = (subtype & IEEE80211_STYPE_QOS_DATA) ? 1 : 0;
1499 retval = validate_recv_data_frame(adapter, precv_frame);
1500 if (retval == _FAIL) {
1501 struct recv_priv *precvpriv = &adapter->recvpriv;
1502 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail\n")); */
1503 precvpriv->rx_drop++;
1507 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1508 ("validate_recv_data_frame fail! type = 0x%x\n", type));
1517 /* remove the wlanhdr and add the eth_hdr */
1519 static int wlanhdr_to_ethhdr (struct recv_frame *precvframe)
1521 u16 eth_type, len, hdrlen;
1524 struct rtw_adapter *adapter = precvframe->adapter;
1525 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1527 struct sk_buff *skb = precvframe->pkt;
1529 struct rx_pkt_attrib *pattrib = &precvframe->attrib;
1534 hdrlen = pattrib->hdrlen;
1535 psnap = ptr + hdrlen;
1536 eth_type = (psnap[6] << 8) | psnap[7];
1537 /* convert hdr + possible LLC headers into Ethernet header */
1538 /* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */
1539 if ((ether_addr_equal(psnap, rfc1042_header) &&
1540 eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) ||
1541 ether_addr_equal(psnap, bridge_tunnel_header)) {
1542 /* remove RFC1042 or Bridge-Tunnel encapsulation
1543 and replace EtherType */
1545 hdrlen += SNAP_SIZE;
1547 /* Leave Ethernet header part of hdr and full payload */
1549 eth_type = (psnap[0] << 8) | psnap[1];
1552 len = skb->len - hdrlen;
1554 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1555 ("\n === pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n",
1556 pattrib->hdrlen, pattrib->iv_len));
1558 pattrib->eth_type = eth_type;
1559 if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
1565 /* append rx status for mp test packets */
1567 ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + 2) - 24);
1568 memcpy(ptr, skb->head, 24);
1571 ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) +
1575 ether_addr_copy(ptr, pattrib->dst);
1576 ether_addr_copy(ptr + ETH_ALEN, pattrib->src);
1580 memcpy(ptr + 12, &len, 2);
1587 /* perform defrag */
1588 struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
1589 struct rtw_queue *defrag_q);
1590 struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
1591 struct rtw_queue *defrag_q)
1593 struct list_head *plist, *phead, *ptmp;
1594 u8 *data, wlanhdr_offset;
1596 struct recv_frame *pnfhdr;
1597 struct recv_frame *prframe, *pnextrframe;
1598 struct rtw_queue *pfree_recv_queue;
1599 struct sk_buff *skb;
1604 pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
1606 phead = get_list_head(defrag_q);
1607 plist = phead->next;
1608 prframe = container_of(plist, struct recv_frame, list);
1609 list_del_init(&prframe->list);
1612 if (curfragnum != prframe->attrib.frag_num) {
1613 /* the first fragment number must be 0 */
1614 /* free the whole queue */
1615 rtw_free_recvframe23a(prframe);
1616 rtw_free_recvframe23a_queue(defrag_q);
1623 phead = get_list_head(defrag_q);
1625 data = prframe->pkt->data;
1627 list_for_each_safe(plist, ptmp, phead) {
1628 pnfhdr = container_of(plist, struct recv_frame, list);
1629 pnextrframe = (struct recv_frame *)pnfhdr;
1630 /* check the fragment sequence (2nd ~n fragment frame) */
1632 if (curfragnum != pnfhdr->attrib.frag_num) {
1633 /* the fragment number must be increasing
1635 /* release the defrag_q & prframe */
1636 rtw_free_recvframe23a(prframe);
1637 rtw_free_recvframe23a_queue(defrag_q);
1643 /* copy the 2nd~n fragment frame's payload to the
1645 /* get the 2nd~last fragment frame's payload */
1647 wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
1649 skb_pull(pnfhdr->pkt, wlanhdr_offset);
1651 /* append to first fragment frame's tail
1652 (if privacy frame, pull the ICV) */
1654 skb_trim(skb, skb->len - prframe->attrib.icv_len);
1656 memcpy(skb_tail_pointer(skb), pnfhdr->pkt->data,
1659 skb_put(skb, pnfhdr->pkt->len);
1661 prframe->attrib.icv_len = pnfhdr->attrib.icv_len;
1664 /* free the defrag_q queue and return the prframe */
1665 rtw_free_recvframe23a_queue(defrag_q);
1667 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1668 ("Performance defrag!!!!!\n"));
1675 /* check if need to defrag, if needed queue the frame to defrag_q */
1676 struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
1677 struct recv_frame *precv_frame)
1682 struct recv_frame *pfhdr;
1683 struct sta_info *psta;
1684 struct sta_priv *pstapriv;
1685 struct list_head *phead;
1686 struct recv_frame *prtnframe = NULL;
1687 struct rtw_queue *pfree_recv_queue, *pdefrag_q;
1691 pstapriv = &padapter->stapriv;
1693 pfhdr = precv_frame;
1695 pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
1697 /* need to define struct of wlan header frame ctrl */
1698 ismfrag = pfhdr->attrib.mfrag;
1699 fragnum = pfhdr->attrib.frag_num;
1701 psta_addr = pfhdr->attrib.ta;
1702 psta = rtw_get_stainfo23a(pstapriv, psta_addr);
1704 struct ieee80211_hdr *hdr =
1705 (struct ieee80211_hdr *) pfhdr->pkt->data;
1706 if (!ieee80211_is_data(hdr->frame_control)) {
1707 psta = rtw_get_bcmc_stainfo23a(padapter);
1708 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1712 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1714 if ((ismfrag == 0) && (fragnum == 0)) {
1715 prtnframe = precv_frame;/* isn't a fragment frame */
1719 /* 0~(n-1) fragment frame */
1720 /* enqueue to defraf_g */
1721 if (pdefrag_q != NULL) {
1723 /* the first fragment */
1724 if (!list_empty(&pdefrag_q->queue)) {
1725 /* free current defrag_q */
1726 rtw_free_recvframe23a_queue(pdefrag_q);
1730 /* Then enqueue the 0~(n-1) fragment into the
1733 /* spin_lock(&pdefrag_q->lock); */
1734 phead = get_list_head(pdefrag_q);
1735 list_add_tail(&pfhdr->list, phead);
1736 /* spin_unlock(&pdefrag_q->lock); */
1738 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1739 ("Enqueuq: ismfrag = %d, fragnum = %d\n",
1745 /* can't find this ta's defrag_queue,
1746 so free this recv_frame */
1747 rtw_free_recvframe23a(precv_frame);
1749 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1750 ("Free because pdefrag_q == NULL: ismfrag = "
1751 "%d, fragnum = %d\n", ismfrag, fragnum));
1755 if ((ismfrag == 0) && (fragnum != 0)) {
1756 /* the last fragment frame */
1757 /* enqueue the last fragment */
1758 if (pdefrag_q != NULL) {
1759 /* spin_lock(&pdefrag_q->lock); */
1760 phead = get_list_head(pdefrag_q);
1761 list_add_tail(&pfhdr->list, phead);
1762 /* spin_unlock(&pdefrag_q->lock); */
1764 /* call recvframe_defrag to defrag */
1765 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1766 ("defrag: ismfrag = %d, fragnum = %d\n",
1768 precv_frame = recvframe_defrag(padapter, pdefrag_q);
1769 prtnframe = precv_frame;
1771 /* can't find this ta's defrag_queue,
1772 so free this recv_frame */
1773 rtw_free_recvframe23a(precv_frame);
1775 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1776 ("Free because pdefrag_q == NULL: ismfrag = "
1777 "%d, fragnum = %d\n", ismfrag, fragnum));
1782 if ((prtnframe != NULL) && (prtnframe->attrib.privacy)) {
1783 /* after defrag we must check tkip mic code */
1784 if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
1785 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
1786 ("recvframe_chkmic(padapter, prtnframe) =="
1788 rtw_free_recvframe23a(prtnframe);
1798 int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe);
1799 int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe)
1801 struct rx_pkt_attrib *pattrib;
1802 struct sk_buff *skb, *sub_skb;
1803 struct sk_buff_head skb_list;
1805 pattrib = &prframe->attrib;
1808 skb_pull(skb, prframe->attrib.hdrlen);
1809 __skb_queue_head_init(&skb_list);
1811 ieee80211_amsdu_to_8023s(skb, &skb_list, NULL, 0, 0, false);
1813 while (!skb_queue_empty(&skb_list)) {
1814 sub_skb = __skb_dequeue(&skb_list);
1816 sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev);
1817 sub_skb->dev = padapter->pnetdev;
1819 sub_skb->ip_summed = CHECKSUM_NONE;
1824 prframe->pkt = NULL;
1825 rtw_free_recvframe23a(prframe);
1829 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num);
1830 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
1832 u8 wsize = preorder_ctrl->wsize_b;
1833 u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF;
1835 /* Rx Reorder initialize condition. */
1836 if (preorder_ctrl->indicate_seq == 0xFFFF)
1837 preorder_ctrl->indicate_seq = seq_num;
1839 /* Drop out the packet which SeqNum is smaller than WinStart */
1840 if (SN_LESS(seq_num, preorder_ctrl->indicate_seq))
1844 /* Sliding window manipulation. Conditions includes: */
1845 /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */
1846 /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */
1848 if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
1849 preorder_ctrl->indicate_seq =
1850 (preorder_ctrl->indicate_seq + 1) & 0xFFF;
1851 } else if (SN_LESS(wend, seq_num)) {
1852 /* boundary situation, when seq_num cross 0xFFF */
1853 if (seq_num >= (wsize - 1))
1854 preorder_ctrl->indicate_seq = seq_num + 1 -wsize;
1856 preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1;
1861 static int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl,
1862 struct recv_frame *prframe)
1864 struct rx_pkt_attrib *pattrib = &prframe->attrib;
1865 struct rtw_queue *ppending_recvframe_queue;
1866 struct list_head *phead, *plist, *ptmp;
1867 struct recv_frame *hdr;
1868 struct rx_pkt_attrib *pnextattrib;
1870 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
1871 /* DbgPrint("+enqueue_reorder_recvframe23a()\n"); */
1873 /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
1874 /* spin_lock_ex(&ppending_recvframe_queue->lock); */
1876 phead = get_list_head(ppending_recvframe_queue);
1878 list_for_each_safe(plist, ptmp, phead) {
1879 hdr = container_of(plist, struct recv_frame, list);
1880 pnextattrib = &hdr->attrib;
1882 if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) {
1884 } else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) {
1885 /* Duplicate entry is found!! Do not insert current entry. */
1886 /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
1888 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
1894 /* DbgPrint("enqueue_reorder_recvframe23a():while\n"); */
1897 /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
1898 /* spin_lock_ex(&ppending_recvframe_queue->lock); */
1900 list_del_init(&prframe->list);
1902 list_add_tail(&prframe->list, plist);
1904 /* spin_unlock_ex(&ppending_recvframe_queue->lock); */
1905 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
1907 /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
1911 int recv_indicatepkts_in_order(struct rtw_adapter *padapter,
1912 struct recv_reorder_ctrl *preorder_ctrl,
1914 int recv_indicatepkts_in_order(struct rtw_adapter *padapter,
1915 struct recv_reorder_ctrl *preorder_ctrl,
1918 /* u8 bcancelled; */
1919 struct list_head *phead, *plist;
1920 struct recv_frame *prframe;
1921 struct rx_pkt_attrib *pattrib;
1923 int bPktInBuf = false;
1924 struct recv_priv *precvpriv;
1925 struct rtw_queue *ppending_recvframe_queue;
1927 precvpriv = &padapter->recvpriv;
1928 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
1929 /* DbgPrint("+recv_indicatepkts_in_order\n"); */
1931 /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */
1932 /* spin_lock_ex(&ppending_recvframe_queue->lock); */
1934 phead = get_list_head(ppending_recvframe_queue);
1935 plist = phead->next;
1937 /* Handling some condition for forced indicate case. */
1939 if (list_empty(phead)) {
1940 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
1941 /* spin_unlock_ex(&ppending_recvframe_queue->lock); */
1945 prframe = container_of(plist, struct recv_frame, list);
1946 pattrib = &prframe->attrib;
1947 preorder_ctrl->indicate_seq = pattrib->seq_num;
1950 /* Prepare indication list and indication. */
1951 /* Check if there is any packet need indicate. */
1952 while (!list_empty(phead)) {
1954 prframe = container_of(plist, struct recv_frame, list);
1955 pattrib = &prframe->attrib;
1957 if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
1958 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
1959 ("recv_indicatepkts_in_order: indicate =%d "
1960 "seq =%d amsdu =%d\n",
1961 preorder_ctrl->indicate_seq,
1962 pattrib->seq_num, pattrib->amsdu));
1964 plist = plist->next;
1965 list_del_init(&prframe->list);
1967 if (SN_EQUAL(preorder_ctrl->indicate_seq,
1968 pattrib->seq_num)) {
1969 preorder_ctrl->indicate_seq =
1970 (preorder_ctrl->indicate_seq + 1)&0xFFF;
1973 if (!pattrib->amsdu) {
1974 if ((padapter->bDriverStopped == false) &&
1975 (padapter->bSurpriseRemoved == false)) {
1976 rtw_recv_indicatepkt23a(padapter, prframe);
1979 if (amsdu_to_msdu(padapter, prframe) !=
1981 rtw_free_recvframe23a(prframe);
1984 /* Update local variables. */
1992 /* DbgPrint("recv_indicatepkts_in_order():while\n"); */
1995 /* spin_unlock_ex(&ppending_recvframe_queue->lock); */
1996 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
2001 int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
2002 struct recv_frame *prframe);
2003 int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
2004 struct recv_frame *prframe)
2006 int retval = _SUCCESS;
2007 struct rx_pkt_attrib *pattrib;
2008 struct recv_reorder_ctrl *preorder_ctrl;
2009 struct rtw_queue *ppending_recvframe_queue;
2011 pattrib = &prframe->attrib;
2012 preorder_ctrl = prframe->preorder_ctrl;
2013 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2015 if (!pattrib->amsdu) {
2017 wlanhdr_to_ethhdr(prframe);
2019 if ((pattrib->qos!= 1) || (pattrib->eth_type == ETH_P_ARP) ||
2020 (pattrib->ack_policy != 0)) {
2021 if ((padapter->bDriverStopped == false) &&
2022 (padapter->bSurpriseRemoved == false)) {
2023 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2024 ("@@@@ recv_indicatepkt_reorder -"
2025 "recv_func recv_indicatepkt\n"));
2027 rtw_recv_indicatepkt23a(padapter, prframe);
2034 if (preorder_ctrl->enable == false) {
2035 /* indicate this recv_frame */
2036 preorder_ctrl->indicate_seq = pattrib->seq_num;
2037 rtw_recv_indicatepkt23a(padapter, prframe);
2039 preorder_ctrl->indicate_seq =
2040 (preorder_ctrl->indicate_seq + 1) % 4096;
2044 /* temp filter -> means didn't support A-MSDUs in a A-MPDU */
2045 if (preorder_ctrl->enable == false) {
2046 preorder_ctrl->indicate_seq = pattrib->seq_num;
2047 retval = amsdu_to_msdu(padapter, prframe);
2049 preorder_ctrl->indicate_seq =
2050 (preorder_ctrl->indicate_seq + 1) % 4096;
2055 spin_lock_bh(&ppending_recvframe_queue->lock);
2057 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2058 ("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
2059 preorder_ctrl->indicate_seq, pattrib->seq_num));
2061 /* s2. check if winstart_b(indicate_seq) needs to been updated */
2062 if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
2066 /* s3. Insert all packet into Reorder Queue to maintain its ordering. */
2067 if (!enqueue_reorder_recvframe23a(preorder_ctrl, prframe)) {
2072 /* Indication process. */
2073 /* After Packet dropping and Sliding Window shifting as above,
2074 we can now just indicate the packets */
2075 /* with the SeqNum smaller than latest WinStart and buffer
2078 /* For Rx Reorder condition: */
2079 /* 1. All packets with SeqNum smaller than WinStart => Indicate */
2080 /* 2. All packets with SeqNum larger than or equal to WinStart =>
2084 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) {
2085 mod_timer(&preorder_ctrl->reordering_ctrl_timer,
2086 jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
2087 spin_unlock_bh(&ppending_recvframe_queue->lock);
2089 spin_unlock_bh(&ppending_recvframe_queue->lock);
2090 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
2096 spin_unlock_bh(&ppending_recvframe_queue->lock);
2100 void rtw_reordering_ctrl_timeout_handler23a(unsigned long pcontext)
2102 struct recv_reorder_ctrl *preorder_ctrl;
2103 struct rtw_adapter *padapter;
2104 struct rtw_queue *ppending_recvframe_queue;
2106 preorder_ctrl = (struct recv_reorder_ctrl *)pcontext;
2107 padapter = preorder_ctrl->padapter;
2108 ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2110 if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
2114 /* DBG_8723A("+rtw_reordering_ctrl_timeout_handler23a() =>\n"); */
2116 spin_lock_bh(&ppending_recvframe_queue->lock);
2118 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true) {
2119 mod_timer(&preorder_ctrl->reordering_ctrl_timer,
2120 jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
2123 spin_unlock_bh(&ppending_recvframe_queue->lock);
2126 int process_recv_indicatepkts(struct rtw_adapter *padapter,
2127 struct recv_frame *prframe);
2128 int process_recv_indicatepkts(struct rtw_adapter *padapter,
2129 struct recv_frame *prframe)
2131 int retval = _SUCCESS;
2132 /* struct recv_priv *precvpriv = &padapter->recvpriv; */
2133 /* struct rx_pkt_attrib *pattrib = &prframe->attrib; */
2134 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2135 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2137 if (phtpriv->ht_option == true) { /* B/G/N Mode */
2138 /* prframe->preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; */
2140 /* including perform A-MPDU Rx Ordering Buffer Control */
2141 if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) {
2142 if ((padapter->bDriverStopped == false) &&
2143 (padapter->bSurpriseRemoved == false)) {
2148 } else { /* B/G mode */
2149 retval = wlanhdr_to_ethhdr(prframe);
2150 if (retval != _SUCCESS) {
2151 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
2152 ("wlanhdr_to_ethhdr: drop pkt\n"));
2156 if ((padapter->bDriverStopped == false) &&
2157 (padapter->bSurpriseRemoved == false)) {
2158 /* indicate this recv_frame */
2159 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2160 ("@@@@ process_recv_indicatepkts- "
2161 "recv_func recv_indicatepkt\n"));
2162 rtw_recv_indicatepkt23a(padapter, prframe);
2164 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2165 ("@@@@ process_recv_indicatepkts- "
2166 "recv_func free_indicatepkt\n"));
2168 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2169 ("recv_func:bDriverStopped(%d) OR "
2170 "bSurpriseRemoved(%d)",
2171 padapter->bDriverStopped,
2172 padapter->bSurpriseRemoved));
2182 static int recv_func_prehandle(struct rtw_adapter *padapter,
2183 struct recv_frame *rframe)
2187 /* check the frame crtl field and decache */
2188 ret = validate_recv_frame(padapter, rframe);
2189 if (ret != _SUCCESS) {
2190 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
2191 ("recv_func: validate_recv_frame fail! drop pkt\n"));
2192 rtw_free_recvframe23a(rframe);
2200 static int recv_func_posthandle(struct rtw_adapter *padapter,
2201 struct recv_frame *prframe)
2204 struct recv_frame *orig_prframe = prframe;
2205 struct recv_priv *precvpriv = &padapter->recvpriv;
2208 prframe = decryptor(padapter, prframe);
2209 if (prframe == NULL) {
2210 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
2211 ("decryptor: drop pkt\n"));
2213 goto _recv_data_drop;
2216 prframe = recvframe_chk_defrag23a(padapter, prframe);
2218 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
2219 ("recvframe_chk_defrag23a: drop pkt\n"));
2220 goto _recv_data_drop;
2224 * Pull off crypto headers
2226 if (prframe->attrib.iv_len > 0) {
2227 skb_pull(prframe->pkt, prframe->attrib.iv_len);
2230 if (prframe->attrib.icv_len > 0) {
2231 skb_trim(prframe->pkt,
2232 prframe->pkt->len - prframe->attrib.icv_len);
2235 prframe = portctrl(padapter, prframe);
2237 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
2238 ("portctrl: drop pkt\n"));
2240 goto _recv_data_drop;
2243 count_rx_stats(padapter, prframe, NULL);
2245 ret = process_recv_indicatepkts(padapter, prframe);
2246 if (ret != _SUCCESS) {
2247 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
2248 ("recv_func: process_recv_indicatepkts fail!\n"));
2249 rtw_free_recvframe23a(orig_prframe);/* free this recv_frame */
2250 goto _recv_data_drop;
2255 precvpriv->rx_drop++;
2259 int rtw_recv_entry23a(struct recv_frame *rframe)
2262 struct rtw_adapter *padapter = rframe->adapter;
2263 struct rx_pkt_attrib *prxattrib = &rframe->attrib;
2264 struct recv_priv *recvpriv = &padapter->recvpriv;
2265 struct security_priv *psecuritypriv = &padapter->securitypriv;
2266 struct mlme_priv *mlmepriv = &padapter->mlmepriv;
2268 /* check if need to handle uc_swdec_pending_queue*/
2269 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
2270 psecuritypriv->busetkipkey) {
2271 struct recv_frame *pending_frame;
2273 while ((pending_frame = rtw_alloc_recvframe23a(&padapter->recvpriv.uc_swdec_pending_queue))) {
2274 r = recv_func_posthandle(padapter, pending_frame);
2276 DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__);
2280 ret = recv_func_prehandle(padapter, rframe);
2282 if (ret == _SUCCESS) {
2283 /* check if need to enqueue into uc_swdec_pending_queue*/
2284 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
2285 !is_multicast_ether_addr(prxattrib->ra) &&
2286 prxattrib->encrypt > 0 &&
2287 (prxattrib->bdecrypted == 0) &&
2288 !is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) &&
2289 !psecuritypriv->busetkipkey) {
2290 rtw_enqueue_recvframe23a(rframe, &padapter->recvpriv.uc_swdec_pending_queue);
2291 DBG_8723A("%s: no key, enqueue uc_swdec_pending_queue\n", __func__);
2295 ret = recv_func_posthandle(padapter, rframe);
2297 recvpriv->rx_pkts++;
2304 void rtw_signal_stat_timer_hdl23a(unsigned long data)
2306 struct rtw_adapter *adapter = (struct rtw_adapter *)data;
2307 struct recv_priv *recvpriv = &adapter->recvpriv;
2310 u8 avg_signal_strength = 0;
2311 u8 avg_signal_qual = 0;
2312 u32 num_signal_strength = 0;
2313 u32 num_signal_qual = 0;
2314 u8 _alpha = 3; /* this value is based on converging_constant = 5000 */
2315 /* and sampling_interval = 1000 */
2317 if (recvpriv->signal_strength_data.update_req == 0) {
2318 /* update_req is clear, means we got rx */
2319 avg_signal_strength = recvpriv->signal_strength_data.avg_val;
2320 num_signal_strength = recvpriv->signal_strength_data.total_num;
2321 /* after avg_vals are acquired, we can re-stat */
2322 /* the signal values */
2323 recvpriv->signal_strength_data.update_req = 1;
2326 if (recvpriv->signal_qual_data.update_req == 0) {
2327 /* update_req is clear, means we got rx */
2328 avg_signal_qual = recvpriv->signal_qual_data.avg_val;
2329 num_signal_qual = recvpriv->signal_qual_data.total_num;
2330 /* after avg_vals are acquired, we can re-stat */
2331 /*the signal values */
2332 recvpriv->signal_qual_data.update_req = 1;
2335 /* update value of signal_strength, rssi, signal_qual */
2336 if (!check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY)) {
2337 tmp_s = (avg_signal_strength + (_alpha - 1) *
2338 recvpriv->signal_strength);
2340 tmp_s = tmp_s / _alpha + 1;
2342 tmp_s = tmp_s / _alpha;
2346 tmp_q = avg_signal_qual + (_alpha - 1) * recvpriv->signal_qual;
2348 tmp_q = tmp_q / _alpha + 1;
2350 tmp_q = tmp_q / _alpha;
2354 recvpriv->signal_strength = tmp_s;
2355 recvpriv->signal_qual = tmp_q;
2357 DBG_8723A("%s signal_strength:%3u, signal_qual:%3u, "
2358 "num_signal_strength:%u, num_signal_qual:%u\n",
2359 __func__, recvpriv->signal_strength,
2360 recvpriv->signal_qual, num_signal_strength,
2364 rtw_set_signal_stat_timer(recvpriv);