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 /* pxmitpriv->pxmit_frame_buf = pxmitpriv->pallocated_frame_buf + 4 - */
81 /* ((size_t) (pxmitpriv->pallocated_frame_buf) &3); */
82
83 pxframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
84
85 for (i = 0; i < NR_XMITFRAME; i++) {
86 INIT_LIST_HEAD(&pxframe->list);
87
88 pxframe->padapter = padapter;
89 pxframe->frame_tag = NULL_FRAMETAG;
90
91 pxframe->pkt = NULL;
92
93 pxframe->buf_addr = NULL;
94 pxframe->pxmitbuf = NULL;
95
96 list_add_tail(&pxframe->list, &pxmitpriv->free_xmit_queue.queue);
97
98 pxframe++;
99 }
100
101 pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
102
103 pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
104
105 /* init xmit_buf */
106 _rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
107 _rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
108
109 pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
110
111 if (!pxmitpriv->pallocated_xmitbuf) {
112 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_buf fail!\n"));
113 res = _FAIL;
114 goto exit;
115 }
116
117 pxmitpriv->pxmitbuf = PTR_ALIGN(pxmitpriv->pallocated_xmitbuf, 4);
118 /* pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 - */
119 /* ((size_t) (pxmitpriv->pallocated_xmitbuf) &3); */
120
121 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
122
123 for (i = 0; i < NR_XMITBUFF; i++) {
124 INIT_LIST_HEAD(&pxmitbuf->list);
125
126 pxmitbuf->priv_data = NULL;
127 pxmitbuf->padapter = padapter;
128 pxmitbuf->ext_tag = false;
129
130 /* Tx buf allocation may fail sometimes, so sleep and retry. */
131 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
132 if (res == _FAIL) {
133 msleep(10);
134 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
135 if (res == _FAIL)
136 goto exit;
137 }
138
139 pxmitbuf->flags = XMIT_VO_QUEUE;
140
141 list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmitbuf_queue.queue);
142 pxmitbuf++;
143 }
144
145 pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
146
147 /* Init xmit extension buff */
148 _rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
149
150 pxmitpriv->pallocated_xmit_extbuf = vzalloc(num_xmit_extbuf * sizeof(struct xmit_buf) + 4);
151
152 if (!pxmitpriv->pallocated_xmit_extbuf) {
153 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_extbuf fail!\n"));
154 res = _FAIL;
155 goto exit;
156 }
157
158 pxmitpriv->pxmit_extbuf = PTR_ALIGN(pxmitpriv->pallocated_xmit_extbuf, 4);
159
160 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
161
162 for (i = 0; i < num_xmit_extbuf; i++) {
163 INIT_LIST_HEAD(&pxmitbuf->list);
164
165 pxmitbuf->priv_data = NULL;
166 pxmitbuf->padapter = padapter;
167 pxmitbuf->ext_tag = true;
168
169 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ);
170 if (res == _FAIL) {
171 res = _FAIL;
172 goto exit;
173 }
174
175 list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmit_extbuf_queue.queue);
176 pxmitbuf++;
177 }
178
179 pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
180
181 rtw_alloc_hwxmits(padapter);
182 rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
183
184 for (i = 0; i < 4; i++)
185 pxmitpriv->wmm_para_seq[i] = i;
186
187 pxmitpriv->txirp_cnt = 1;
188
189 /* per AC pending irp */
190 pxmitpriv->beq_cnt = 0;
191 pxmitpriv->bkq_cnt = 0;
192 pxmitpriv->viq_cnt = 0;
193 pxmitpriv->voq_cnt = 0;
194
195 pxmitpriv->ack_tx = false;
196 mutex_init(&pxmitpriv->ack_tx_mutex);
197 rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
198
199 rtw_hal_init_xmit_priv(padapter);
200
201 exit:
202 return res;
203 }
204
_rtw_free_xmit_priv(struct xmit_priv * pxmitpriv)205 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
206 {
207 int i;
208 struct adapter *padapter = pxmitpriv->adapter;
209 struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
210 struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
211 u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
212
213 if (!pxmitpriv->pxmit_frame_buf)
214 return;
215
216 for (i = 0; i < NR_XMITFRAME; i++) {
217 rtw_os_xmit_complete(padapter, pxmitframe);
218
219 pxmitframe++;
220 }
221
222 for (i = 0; i < NR_XMITBUFF; i++) {
223 rtw_os_xmit_resource_free(pxmitbuf);
224 pxmitbuf++;
225 }
226
227 vfree(pxmitpriv->pallocated_frame_buf);
228 vfree(pxmitpriv->pallocated_xmitbuf);
229
230 /* free xmit extension buff */
231 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
232 for (i = 0; i < num_xmit_extbuf; i++) {
233 rtw_os_xmit_resource_free(pxmitbuf);
234 pxmitbuf++;
235 }
236
237 vfree(pxmitpriv->pallocated_xmit_extbuf);
238
239 rtw_free_hwxmits(padapter);
240
241 mutex_destroy(&pxmitpriv->ack_tx_mutex);
242 }
243
update_attrib_vcs_info(struct adapter * padapter,struct xmit_frame * pxmitframe)244 static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
245 {
246 u32 sz;
247 struct pkt_attrib *pattrib = &pxmitframe->attrib;
248 struct sta_info *psta = pattrib->psta;
249 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
250 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
251
252 if (pattrib->nr_frags != 1)
253 sz = padapter->xmitpriv.frag_len;
254 else /* no frag */
255 sz = pattrib->last_txcmdsz;
256
257 /* (1) RTS_Threshold is compared to the MPDU, not MSDU. */
258 /* (2) If there are more than one frag in this MSDU, only the first frag uses protection frame. */
259 /* Other fragments are protected by previous fragment. */
260 /* So we only need to check the length of first fragment. */
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 /*if (psta->rtsen)
325 pattrib->vcs_mode = RTS_CTS;
326 else if (psta->cts2self)
327 pattrib->vcs_mode = CTS_TO_SELF;
328 else
329 pattrib->vcs_mode = NONE_VCS;*/
330
331 pattrib->mdata = 0;
332 pattrib->eosp = 0;
333 pattrib->triggered = 0;
334
335 /* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
336 pattrib->qos_en = psta->qos_option;
337
338 pattrib->raid = psta->raid;
339 pattrib->ht_en = psta->htpriv.ht_option;
340 pattrib->bwmode = psta->htpriv.bwmode;
341 pattrib->ch_offset = psta->htpriv.ch_offset;
342 pattrib->sgi = psta->htpriv.sgi;
343 pattrib->ampdu_en = false;
344 pattrib->retry_ctrl = false;
345 }
346
qos_acm(u8 acm_mask,u8 priority)347 u8 qos_acm(u8 acm_mask, u8 priority)
348 {
349 u8 change_priority = priority;
350
351 switch (priority) {
352 case 0:
353 case 3:
354 if (acm_mask & BIT(1))
355 change_priority = 1;
356 break;
357 case 1:
358 case 2:
359 break;
360 case 4:
361 case 5:
362 if (acm_mask & BIT(2))
363 change_priority = 0;
364 break;
365 case 6:
366 case 7:
367 if (acm_mask & BIT(3))
368 change_priority = 5;
369 break;
370 default:
371 DBG_88E("qos_acm(): invalid pattrib->priority: %d!!!\n", priority);
372 break;
373 }
374
375 return change_priority;
376 }
377
set_qos(struct sk_buff * skb,struct pkt_attrib * pattrib)378 static void set_qos(struct sk_buff *skb, struct pkt_attrib *pattrib)
379 {
380 if (pattrib->ether_type == 0x0800) {
381 struct iphdr ip_hdr;
382
383 skb_copy_bits(skb, ETH_HLEN, &ip_hdr, sizeof(ip_hdr));
384 pattrib->priority = ip_hdr.tos >> 5;
385 } else if (pattrib->ether_type == ETH_P_PAE) {
386 /* "When priority processing of data frames is supported, */
387 /* a STA's SME should send EAPOL-Key frames at the highest priority." */
388 pattrib->priority = 7;
389 } else {
390 pattrib->priority = 0;
391 }
392
393 pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
394 pattrib->subtype = WIFI_QOS_DATA_TYPE;
395 }
396
update_attrib(struct adapter * padapter,struct sk_buff * pkt,struct pkt_attrib * pattrib)397 static s32 update_attrib(struct adapter *padapter, struct sk_buff *pkt, struct pkt_attrib *pattrib)
398 {
399 struct sta_info *psta = NULL;
400 struct ethhdr etherhdr;
401
402 int bmcast;
403 struct sta_priv *pstapriv = &padapter->stapriv;
404 struct security_priv *psecuritypriv = &padapter->securitypriv;
405 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
406 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
407 int res = _SUCCESS;
408
409 skb_copy_bits(pkt, 0, ðerhdr, ETH_HLEN);
410
411 pattrib->ether_type = ntohs(etherhdr.h_proto);
412
413 memcpy(pattrib->dst, ðerhdr.h_dest, ETH_ALEN);
414 memcpy(pattrib->src, ðerhdr.h_source, ETH_ALEN);
415
416 pattrib->pctrl = 0;
417
418 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
419 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
420 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
421 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
422 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
423 memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
424 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
425 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
426 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
427 memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
428 }
429
430 pattrib->pktlen = pkt->len - ETH_HLEN;
431
432 if (pattrib->ether_type == ETH_P_IP) {
433 /* The following is for DHCP and ARP packet, we use cck1M to tx these packets and let LPS awake some time */
434 /* to prevent DHCP protocol fail */
435 u8 tmp[24];
436
437 skb_copy_bits(pkt, ETH_HLEN, tmp, 24);
438
439 pattrib->dhcp_pkt = 0;
440 if (pkt->len > ETH_HLEN + 24 + 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
441 if (pattrib->ether_type == ETH_P_IP) {/* IP header */
442 if (((tmp[21] == 68) && (tmp[23] == 67)) ||
443 ((tmp[21] == 67) && (tmp[23] == 68))) {
444 /* 68 : UDP BOOTP client */
445 /* 67 : UDP BOOTP server */
446 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====================== %s: get DHCP Packet\n", __func__));
447 /* Use low rate to send DHCP packet. */
448 pattrib->dhcp_pkt = 1;
449 }
450 }
451 }
452 } else if (pattrib->ether_type == ETH_P_PAE) {
453 DBG_88E_LEVEL(_drv_info_, "send eapol packet\n");
454 }
455
456 if ((pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
457 rtw_set_scan_deny(padapter, 3000);
458
459 /* If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
460 if ((pattrib->ether_type == ETH_P_ARP) || (pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
461 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
462
463 bmcast = IS_MCAST(pattrib->ra);
464
465 /* get sta_info */
466 if (bmcast) {
467 psta = rtw_get_bcmc_stainfo(padapter);
468 } else {
469 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
470 if (!psta) { /* if we cannot get psta => drrp the pkt */
471 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra: %pM\n", (pattrib->ra)));
472 res = _FAIL;
473 goto exit;
474 } else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) && (!(psta->state & _FW_LINKED))) {
475 res = _FAIL;
476 goto exit;
477 }
478 }
479
480 if (psta) {
481 pattrib->mac_id = psta->mac_id;
482 /* DBG_88E("%s ==> mac_id(%d)\n", __func__, pattrib->mac_id); */
483 pattrib->psta = psta;
484 } else {
485 /* if we cannot get psta => drop the pkt */
486 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:%pM\n", (pattrib->ra)));
487 res = _FAIL;
488 goto exit;
489 }
490
491 pattrib->ack_policy = 0;
492
493 pattrib->hdrlen = WLAN_HDR_A3_LEN;
494 pattrib->subtype = WIFI_DATA_TYPE;
495 pattrib->priority = 0;
496
497 if (check_fwstate(pmlmepriv, WIFI_AP_STATE|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, bmcast);
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 (bmcast)
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] = {0x0, 0x0, 0x0, 0x0};
598 u8 hw_hdr_offset = 0;
599 int bmcst = IS_MCAST(pattrib->ra);
600
601 if (pattrib->psta)
602 stainfo = pattrib->psta;
603 else
604 stainfo = rtw_get_stainfo(&padapter->stapriv, &pattrib->ra[0]);
605
606 hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
607
608 if (pattrib->encrypt == _TKIP_) {/* if (psecuritypriv->dot11PrivacyAlgrthm == _TKIP_PRIVACY_) */
609 /* encode mic code */
610 if (stainfo) {
611 u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
612 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
613 0x0, 0x0};
614
615 pframe = pxmitframe->buf_addr + hw_hdr_offset;
616
617 if (bmcst) {
618 if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
619 return _FAIL;
620 /* start to calculate the mic code */
621 rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
622 } else {
623 if (!memcmp(&stainfo->dot11tkiptxmickey.skey[0], null_key, 16)) {
624 /* DbgPrint("\nxmitframe_addmic:stainfo->dot11tkiptxmickey == 0\n"); */
625 /* msleep(10); */
626 return _FAIL;
627 }
628 /* start to calculate the mic code */
629 rtw_secmicsetkey(&micdata, &stainfo->dot11tkiptxmickey.skey[0]);
630 }
631
632 if (pframe[1]&1) { /* ToDS == 1 */
633 rtw_secmicappend(&micdata, &pframe[16], 6); /* DA */
634 if (pframe[1]&2) /* From Ds == 1 */
635 rtw_secmicappend(&micdata, &pframe[24], 6);
636 else
637 rtw_secmicappend(&micdata, &pframe[10], 6);
638 } else { /* ToDS == 0 */
639 rtw_secmicappend(&micdata, &pframe[4], 6); /* DA */
640 if (pframe[1]&2) /* From Ds == 1 */
641 rtw_secmicappend(&micdata, &pframe[16], 6);
642 else
643 rtw_secmicappend(&micdata, &pframe[10], 6);
644 }
645
646 if (pattrib->qos_en)
647 priority[0] = (u8)pxmitframe->attrib.priority;
648
649 rtw_secmicappend(&micdata, &priority[0], 4);
650
651 payload = pframe;
652
653 for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
654 payload = (u8 *)round_up((size_t)(payload), 4);
655 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
656 ("=== curfragnum=%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
657 curfragnum, *payload, *(payload+1),
658 *(payload+2), *(payload+3),
659 *(payload+4), *(payload+5),
660 *(payload+6), *(payload+7)));
661
662 payload = payload+pattrib->hdrlen+pattrib->iv_len;
663 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
664 ("curfragnum=%d pattrib->hdrlen=%d pattrib->iv_len=%d",
665 curfragnum, pattrib->hdrlen, pattrib->iv_len));
666 if ((curfragnum+1) == pattrib->nr_frags) {
667 length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
668 rtw_secmicappend(&micdata, payload, length);
669 payload = payload+length;
670 } else {
671 length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
672 rtw_secmicappend(&micdata, payload, length);
673 payload = payload+length+pattrib->icv_len;
674 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum=%d length=%d pattrib->icv_len=%d", curfragnum, length, pattrib->icv_len));
675 }
676 }
677 rtw_secgetmic(&micdata, &mic[0]);
678 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: before add mic code!!!\n", __func__));
679 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: pattrib->last_txcmdsz=%d!!!\n", __func__, pattrib->last_txcmdsz));
680 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\
681 mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
682 __func__, mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
683 /* add mic code and add the mic code length in last_txcmdsz */
684
685 memcpy(payload, &mic[0], 8);
686 pattrib->last_txcmdsz += 8;
687
688 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ======== last pkt ========\n"));
689 payload = payload-pattrib->last_txcmdsz+8;
690 for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum = curfragnum+8)
691 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
692 (" %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x ",
693 *(payload + curfragnum), *(payload + curfragnum + 1),
694 *(payload + curfragnum + 2), *(payload + curfragnum + 3),
695 *(payload + curfragnum + 4), *(payload + curfragnum + 5),
696 *(payload + curfragnum + 6), *(payload + curfragnum + 7)));
697 } else {
698 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: rtw_get_stainfo==NULL!!!\n", __func__));
699 }
700 }
701
702 return _SUCCESS;
703 }
704
xmitframe_swencrypt(struct adapter * padapter,struct xmit_frame * pxmitframe)705 static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
706 {
707 struct pkt_attrib *pattrib = &pxmitframe->attrib;
708
709 if (pattrib->bswenc) {
710 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("### %s\n", __func__));
711 switch (pattrib->encrypt) {
712 case _WEP40_:
713 case _WEP104_:
714 rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
715 break;
716 case _TKIP_:
717 rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
718 break;
719 case _AES_:
720 rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
721 break;
722 default:
723 break;
724 }
725 } else {
726 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_, ("### xmitframe_hwencrypt\n"));
727 }
728
729 return _SUCCESS;
730 }
731
rtw_make_wlanhdr(struct adapter * padapter,u8 * hdr,struct pkt_attrib * pattrib)732 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
733 {
734 u16 *qc;
735
736 struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
737 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
738 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
739 u8 qos_option = false;
740
741 int res = _SUCCESS;
742 __le16 *fctrl = &pwlanhdr->frame_control;
743
744 struct sta_info *psta;
745
746 int bmcst = IS_MCAST(pattrib->ra);
747
748 if (pattrib->psta) {
749 psta = pattrib->psta;
750 } else {
751 if (bmcst)
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) == true) {
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->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->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 s32 bmcst = IS_MCAST(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 (bmcst)
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 (bmcst)
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__, padapter->securitypriv.dot11PrivacyKeyIndex, pattrib->iv[3], *pframe, *(pframe+1), *(pframe+2), *(pframe+3)));
985
986 pframe += pattrib->iv_len;
987
988 mpdu_len -= pattrib->iv_len;
989 }
990
991 if (frg_inx == 0) {
992 llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
993 pframe += llc_sz;
994 mpdu_len -= llc_sz;
995 }
996
997 if ((pattrib->icv_len > 0) && (pattrib->bswenc))
998 mpdu_len -= pattrib->icv_len;
999
1000 mem_sz = min_t(size_t, bmcst ? pattrib->pktlen : mpdu_len, remainder);
1001 skb_copy_bits(pkt, pkt->len - remainder, pframe, mem_sz);
1002 remainder -= mem_sz;
1003
1004 pframe += mem_sz;
1005
1006 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1007 memcpy(pframe, pattrib->icv, pattrib->icv_len);
1008 pframe += pattrib->icv_len;
1009 }
1010
1011 frg_inx++;
1012
1013 if (bmcst || remainder == 0) {
1014 pattrib->nr_frags = frg_inx;
1015
1016 pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz : 0) +
1017 ((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
1018
1019 ClearMFrag(mem_start);
1020
1021 break;
1022 } else {
1023 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: There're still something in packet!\n", __func__));
1024 }
1025
1026 addr = (size_t)(pframe);
1027
1028 mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
1029 memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
1030 }
1031
1032 /* Frame is about to be encrypted. Forward it to the monitor first. */
1033 rtl88eu_mon_xmit_hook(padapter->pmondev, pxmitframe, frg_len);
1034
1035 if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
1036 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
1037 DBG_88E("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
1038 res = _FAIL;
1039 goto exit;
1040 }
1041
1042 xmitframe_swencrypt(padapter, pxmitframe);
1043
1044 if (!bmcst)
1045 update_attrib_vcs_info(padapter, pxmitframe);
1046 else
1047 pattrib->vcs_mode = NONE_VCS;
1048
1049 exit:
1050 return res;
1051 }
1052
1053 /* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
1054 * IEEE LLC/SNAP header contains 8 octets
1055 * First 3 octets comprise the LLC portion
1056 * SNAP portion, 5 octets, is divided into two fields:
1057 * Organizationally Unique Identifier(OUI), 3 octets,
1058 * type, defined by that organization, 2 octets.
1059 */
rtw_put_snap(u8 * data,u16 h_proto)1060 s32 rtw_put_snap(u8 *data, u16 h_proto)
1061 {
1062 struct ieee80211_snap_hdr *snap;
1063 u8 *oui;
1064
1065 snap = (struct ieee80211_snap_hdr *)data;
1066 snap->dsap = 0xaa;
1067 snap->ssap = 0xaa;
1068 snap->ctrl = 0x03;
1069
1070 if (h_proto == 0x8137 || h_proto == 0x80f3)
1071 oui = P802_1H_OUI;
1072 else
1073 oui = RFC1042_OUI;
1074
1075 snap->oui[0] = oui[0];
1076 snap->oui[1] = oui[1];
1077 snap->oui[2] = oui[2];
1078
1079 *(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
1080
1081 return SNAP_SIZE + sizeof(u16);
1082 }
1083
rtw_update_protection(struct adapter * padapter,u8 * ie,uint ie_len)1084 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
1085 {
1086 uint protection, erp_len;
1087 u8 *perp;
1088 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1089 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1090
1091 switch (pxmitpriv->vcs_setting) {
1092 case DISABLE_VCS:
1093 pxmitpriv->vcs = NONE_VCS;
1094 break;
1095 case ENABLE_VCS:
1096 break;
1097 case AUTO_VCS:
1098 default:
1099 perp = rtw_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
1100 if (!perp) {
1101 pxmitpriv->vcs = NONE_VCS;
1102 } else {
1103 protection = (*(perp + 2)) & BIT(1);
1104 if (protection) {
1105 if (pregistrypriv->vcs_type == RTS_CTS)
1106 pxmitpriv->vcs = RTS_CTS;
1107 else
1108 pxmitpriv->vcs = CTS_TO_SELF;
1109 } else {
1110 pxmitpriv->vcs = NONE_VCS;
1111 }
1112 }
1113 break;
1114 }
1115 }
1116
rtw_count_tx_stats(struct adapter * padapter,struct xmit_frame * pxmitframe,int sz)1117 void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
1118 {
1119 struct sta_info *psta = NULL;
1120 struct stainfo_stats *pstats = NULL;
1121 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1122 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1123
1124 if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) {
1125 pxmitpriv->tx_bytes += sz;
1126 pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pxmitframe->agg_num;
1127
1128 psta = pxmitframe->attrib.psta;
1129 if (psta) {
1130 pstats = &psta->sta_stats;
1131 pstats->tx_pkts += pxmitframe->agg_num;
1132 pstats->tx_bytes += sz;
1133 }
1134 }
1135 }
1136
rtw_alloc_xmitbuf_ext(struct xmit_priv * pxmitpriv)1137 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
1138 {
1139 unsigned long irql;
1140 struct xmit_buf *pxmitbuf;
1141 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1142
1143 spin_lock_irqsave(&pfree_queue->lock, irql);
1144 pxmitbuf = list_first_entry_or_null(&pfree_queue->queue,
1145 struct xmit_buf, list);
1146 if (pxmitbuf) {
1147 list_del_init(&pxmitbuf->list);
1148 pxmitpriv->free_xmit_extbuf_cnt--;
1149 pxmitbuf->priv_data = NULL;
1150 /* pxmitbuf->ext_tag = true; */
1151 if (pxmitbuf->sctx) {
1152 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1153 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1154 }
1155 }
1156 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1157
1158 return pxmitbuf;
1159 }
1160
rtw_free_xmitbuf_ext(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1161 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1162 {
1163 unsigned long irql;
1164 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1165
1166 if (!pxmitbuf)
1167 return _FAIL;
1168
1169 spin_lock_irqsave(&pfree_queue->lock, irql);
1170
1171 list_del_init(&pxmitbuf->list);
1172
1173 list_add_tail(&pxmitbuf->list, get_list_head(pfree_queue));
1174 pxmitpriv->free_xmit_extbuf_cnt++;
1175
1176 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1177
1178 return _SUCCESS;
1179 }
1180
rtw_alloc_xmitbuf(struct xmit_priv * pxmitpriv)1181 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
1182 {
1183 unsigned long irql;
1184 struct xmit_buf *pxmitbuf;
1185 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1186
1187 /* DBG_88E("+rtw_alloc_xmitbuf\n"); */
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 /* pxframe->attrib.psta = NULL; */
1280
1281 pxframe->frame_tag = DATA_FRAMETAG;
1282
1283 pxframe->pkt = NULL;
1284 pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */
1285
1286 pxframe->agg_num = 1;
1287 pxframe->ack_report = 0;
1288 }
1289 spin_unlock_bh(&pfree_xmit_queue->lock);
1290
1291 return pxframe;
1292 }
1293
rtw_free_xmitframe(struct xmit_priv * pxmitpriv,struct xmit_frame * pxmitframe)1294 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
1295 {
1296 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1297 struct adapter *padapter = pxmitpriv->adapter;
1298 struct sk_buff *pndis_pkt = NULL;
1299
1300 if (!pxmitframe) {
1301 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====== %s:pxmitframe == NULL!!!!!!!!!!\n", __func__));
1302 goto exit;
1303 }
1304
1305 spin_lock_bh(&pfree_xmit_queue->lock);
1306
1307 list_del_init(&pxmitframe->list);
1308
1309 if (pxmitframe->pkt) {
1310 pndis_pkt = pxmitframe->pkt;
1311 pxmitframe->pkt = NULL;
1312 }
1313
1314 list_add_tail(&pxmitframe->list, get_list_head(pfree_xmit_queue));
1315
1316 pxmitpriv->free_xmitframe_cnt++;
1317 RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("%s:free_xmitframe_cnt=%d\n", __func__, pxmitpriv->free_xmitframe_cnt));
1318
1319 spin_unlock_bh(&pfree_xmit_queue->lock);
1320
1321 if (pndis_pkt)
1322 rtw_os_pkt_complete(padapter, pndis_pkt);
1323
1324 exit:
1325 return _SUCCESS;
1326 }
1327
rtw_free_xmitframe_queue(struct xmit_priv * pxmitpriv,struct __queue * pframequeue)1328 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
1329 {
1330 struct list_head *plist, *phead;
1331 struct xmit_frame *pxmitframe;
1332
1333 spin_lock_bh(&pframequeue->lock);
1334
1335 phead = get_list_head(pframequeue);
1336 plist = phead->next;
1337
1338 while (phead != plist) {
1339 pxmitframe = container_of(plist, struct xmit_frame, list);
1340
1341 plist = plist->next;
1342
1343 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1344 }
1345 spin_unlock_bh(&pframequeue->lock);
1346 }
1347
rtw_xmitframe_enqueue(struct adapter * padapter,struct xmit_frame * pxmitframe)1348 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
1349 {
1350 if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL) {
1351 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
1352 ("%s: drop xmit pkt for classifier fail\n", __func__));
1353 /* pxmitframe->pkt = NULL; */
1354 return _FAIL;
1355 }
1356
1357 return _SUCCESS;
1358 }
1359
dequeue_one_xmitframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit,struct tx_servq * ptxservq,struct __queue * pframe_queue)1360 static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit, struct tx_servq *ptxservq, struct __queue *pframe_queue)
1361 {
1362 struct list_head *xmitframe_plist, *xmitframe_phead;
1363 struct xmit_frame *pxmitframe = NULL;
1364
1365 xmitframe_phead = get_list_head(pframe_queue);
1366 xmitframe_plist = xmitframe_phead->next;
1367
1368 if (xmitframe_phead != xmitframe_plist) {
1369 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1370
1371 xmitframe_plist = xmitframe_plist->next;
1372
1373 list_del_init(&pxmitframe->list);
1374
1375 ptxservq->qcnt--;
1376 }
1377 return pxmitframe;
1378 }
1379
rtw_dequeue_xframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit_i,int entry)1380 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i, int entry)
1381 {
1382 struct list_head *sta_plist, *sta_phead;
1383 struct hw_xmit *phwxmit;
1384 struct tx_servq *ptxservq = NULL;
1385 struct __queue *pframe_queue = NULL;
1386 struct xmit_frame *pxmitframe = NULL;
1387 struct adapter *padapter = pxmitpriv->adapter;
1388 struct registry_priv *pregpriv = &padapter->registrypriv;
1389 int i, inx[4];
1390
1391 inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
1392
1393 if (pregpriv->wifi_spec == 1) {
1394 int j;
1395
1396 for (j = 0; j < 4; j++)
1397 inx[j] = pxmitpriv->wmm_para_seq[j];
1398 }
1399
1400 spin_lock_bh(&pxmitpriv->lock);
1401
1402 for (i = 0; i < entry; i++) {
1403 phwxmit = phwxmit_i + inx[i];
1404
1405 sta_phead = get_list_head(phwxmit->sta_queue);
1406 sta_plist = sta_phead->next;
1407
1408 while (sta_phead != sta_plist) {
1409 ptxservq = container_of(sta_plist, struct tx_servq, tx_pending);
1410
1411 pframe_queue = &ptxservq->sta_pending;
1412
1413 pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue);
1414
1415 if (pxmitframe) {
1416 phwxmit->accnt--;
1417
1418 /* Remove sta node when there are no pending packets. */
1419 if (list_empty(&pframe_queue->queue)) /* must be done after get_next and before break */
1420 list_del_init(&ptxservq->tx_pending);
1421 goto exit;
1422 }
1423
1424 sta_plist = sta_plist->next;
1425 }
1426 }
1427 exit:
1428 spin_unlock_bh(&pxmitpriv->lock);
1429 return pxmitframe;
1430 }
1431
rtw_get_sta_pending(struct adapter * padapter,struct sta_info * psta,int up,u8 * ac)1432 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *psta, int up, u8 *ac)
1433 {
1434 struct tx_servq *ptxservq;
1435
1436 switch (up) {
1437 case 1:
1438 case 2:
1439 ptxservq = &psta->sta_xmitpriv.bk_q;
1440 *(ac) = 3;
1441 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("%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_, ("%s : VI\n", __func__));
1448 break;
1449 case 6:
1450 case 7:
1451 ptxservq = &psta->sta_xmitpriv.vo_q;
1452 *(ac) = 0;
1453 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("%s : VO\n", __func__));
1454 break;
1455 case 0:
1456 case 3:
1457 default:
1458 ptxservq = &psta->sta_xmitpriv.be_q;
1459 *(ac) = 2;
1460 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("%s : BE\n", __func__));
1461 break;
1462 }
1463
1464 return ptxservq;
1465 }
1466
1467 /*
1468 * Will enqueue pxmitframe to the proper queue,
1469 * and indicate it to xx_pending list.....
1470 */
rtw_xmit_classifier(struct adapter * padapter,struct xmit_frame * pxmitframe)1471 s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
1472 {
1473 u8 ac_index;
1474 struct sta_info *psta;
1475 struct tx_servq *ptxservq;
1476 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1477 struct sta_priv *pstapriv = &padapter->stapriv;
1478 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1479 int res = _SUCCESS;
1480
1481 if (pattrib->psta)
1482 psta = pattrib->psta;
1483 else
1484 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1485
1486 if (!psta) {
1487 res = _FAIL;
1488 DBG_88E("%s: psta == NULL\n", __func__);
1489 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: psta == NULL\n", __func__));
1490 goto exit;
1491 }
1492
1493 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1494
1495 if (list_empty(&ptxservq->tx_pending))
1496 list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
1497
1498 list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
1499 ptxservq->qcnt++;
1500 phwxmits[ac_index].accnt++;
1501 exit:
1502 return res;
1503 }
1504
rtw_alloc_hwxmits(struct adapter * padapter)1505 void rtw_alloc_hwxmits(struct adapter *padapter)
1506 {
1507 struct hw_xmit *hwxmits;
1508 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1509
1510 pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
1511
1512 pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry,
1513 sizeof(struct hw_xmit), GFP_KERNEL);
1514
1515 hwxmits = pxmitpriv->hwxmits;
1516
1517 hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
1518 hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
1519 hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
1520 hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1521 }
1522
rtw_free_hwxmits(struct adapter * padapter)1523 void rtw_free_hwxmits(struct adapter *padapter)
1524 {
1525 struct hw_xmit *hwxmits;
1526 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1527
1528 hwxmits = pxmitpriv->hwxmits;
1529 kfree(hwxmits);
1530 }
1531
rtw_init_hwxmits(struct hw_xmit * phwxmit,int entry)1532 void rtw_init_hwxmits(struct hw_xmit *phwxmit, int entry)
1533 {
1534 int i;
1535
1536 for (i = 0; i < entry; i++, phwxmit++)
1537 phwxmit->accnt = 0;
1538 }
1539
rtw_get_ff_hwaddr(struct xmit_frame * pxmitframe)1540 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
1541 {
1542 u32 addr;
1543 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1544
1545 switch (pattrib->qsel) {
1546 case 0:
1547 case 3:
1548 addr = BE_QUEUE_INX;
1549 break;
1550 case 1:
1551 case 2:
1552 addr = BK_QUEUE_INX;
1553 break;
1554 case 4:
1555 case 5:
1556 addr = VI_QUEUE_INX;
1557 break;
1558 case 6:
1559 case 7:
1560 addr = VO_QUEUE_INX;
1561 break;
1562 case 0x10:
1563 addr = BCN_QUEUE_INX;
1564 break;
1565 case 0x11:/* BC/MC in PS (HIQ) */
1566 addr = HIGH_QUEUE_INX;
1567 break;
1568 case 0x12:
1569 default:
1570 addr = MGT_QUEUE_INX;
1571 break;
1572 }
1573
1574 return addr;
1575 }
1576
1577 /*
1578 * The main transmit(tx) entry
1579 *
1580 * Return
1581 * 1 enqueue
1582 * 0 success, hardware will handle this xmit frame(packet)
1583 * <0 fail
1584 */
rtw_xmit(struct adapter * padapter,struct sk_buff ** ppkt)1585 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **ppkt)
1586 {
1587 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1588 struct xmit_frame *pxmitframe = NULL;
1589 s32 res;
1590
1591 pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
1592 if (!pxmitframe) {
1593 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: no more pxmitframe\n", __func__));
1594 DBG_88E("DBG_TX_DROP_FRAME %s no more pxmitframe\n", __func__);
1595 return -1;
1596 }
1597
1598 res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
1599
1600 if (res == _FAIL) {
1601 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("%s: update attrib fail\n", __func__));
1602 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1603 return -1;
1604 }
1605 pxmitframe->pkt = *ppkt;
1606
1607 LedControl8188eu(padapter, LED_CTL_TX);
1608
1609 pxmitframe->attrib.qsel = pxmitframe->attrib.priority;
1610
1611 #ifdef CONFIG_88EU_AP_MODE
1612 spin_lock_bh(&pxmitpriv->lock);
1613 if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe)) {
1614 spin_unlock_bh(&pxmitpriv->lock);
1615 return 1;
1616 }
1617 spin_unlock_bh(&pxmitpriv->lock);
1618 #endif
1619
1620 if (rtw_hal_xmit(padapter, pxmitframe) == false)
1621 return 1;
1622
1623 return 0;
1624 }
1625
1626 #if defined(CONFIG_88EU_AP_MODE)
1627
xmitframe_enqueue_for_sleeping_sta(struct adapter * padapter,struct xmit_frame * pxmitframe)1628 int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
1629 {
1630 int ret = false;
1631 struct sta_info *psta = NULL;
1632 struct sta_priv *pstapriv = &padapter->stapriv;
1633 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1634 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1635 int bmcst = IS_MCAST(pattrib->ra);
1636
1637 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == false)
1638 return ret;
1639
1640 if (pattrib->psta)
1641 psta = pattrib->psta;
1642 else
1643 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1644
1645 if (!psta)
1646 return ret;
1647
1648 if (pattrib->triggered == 1) {
1649 if (bmcst)
1650 pattrib->qsel = 0x11;/* HIQ */
1651 return ret;
1652 }
1653
1654 if (bmcst) {
1655 spin_lock_bh(&psta->sleep_q.lock);
1656
1657 if (pstapriv->sta_dz_bitmap) {/* if any one sta is in ps mode */
1658 list_del_init(&pxmitframe->list);
1659
1660 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1661
1662 psta->sleepq_len++;
1663
1664 pstapriv->tim_bitmap |= BIT(0);/* */
1665 pstapriv->sta_dz_bitmap |= BIT(0);
1666
1667 update_beacon(padapter, _TIM_IE_, NULL, false);/* tx bc/mc packets after update bcn */
1668
1669 ret = true;
1670 }
1671
1672 spin_unlock_bh(&psta->sleep_q.lock);
1673
1674 return ret;
1675 }
1676
1677 spin_lock_bh(&psta->sleep_q.lock);
1678
1679 if (psta->state&WIFI_SLEEP_STATE) {
1680 u8 wmmps_ac = 0;
1681
1682 if (pstapriv->sta_dz_bitmap&BIT(psta->aid)) {
1683 list_del_init(&pxmitframe->list);
1684
1685 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1686
1687 psta->sleepq_len++;
1688
1689 switch (pattrib->priority) {
1690 case 1:
1691 case 2:
1692 wmmps_ac = psta->uapsd_bk & BIT(0);
1693 break;
1694 case 4:
1695 case 5:
1696 wmmps_ac = psta->uapsd_vi & BIT(0);
1697 break;
1698 case 6:
1699 case 7:
1700 wmmps_ac = psta->uapsd_vo & BIT(0);
1701 break;
1702 case 0:
1703 case 3:
1704 default:
1705 wmmps_ac = psta->uapsd_be & BIT(0);
1706 break;
1707 }
1708
1709 if (wmmps_ac)
1710 psta->sleepq_ac_len++;
1711
1712 if (((psta->has_legacy_ac) && (!wmmps_ac)) ||
1713 ((!psta->has_legacy_ac) && (wmmps_ac))) {
1714 pstapriv->tim_bitmap |= BIT(psta->aid);
1715
1716 if (psta->sleepq_len == 1) {
1717 /* update BCN for TIM IE */
1718 update_beacon(padapter, _TIM_IE_, NULL, false);
1719 }
1720 }
1721 ret = true;
1722 }
1723 }
1724
1725 spin_unlock_bh(&psta->sleep_q.lock);
1726
1727 return ret;
1728 }
1729
dequeue_xmitframes_to_sleeping_queue(struct adapter * padapter,struct sta_info * psta,struct __queue * pframequeue)1730 static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
1731 {
1732 struct list_head *plist, *phead;
1733 u8 ac_index;
1734 struct tx_servq *ptxservq;
1735 struct pkt_attrib *pattrib;
1736 struct xmit_frame *pxmitframe;
1737 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1738
1739 phead = get_list_head(pframequeue);
1740 plist = phead->next;
1741
1742 while (phead != plist) {
1743 pxmitframe = container_of(plist, struct xmit_frame, list);
1744
1745 plist = plist->next;
1746
1747 xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
1748
1749 pattrib = &pxmitframe->attrib;
1750
1751 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1752
1753 ptxservq->qcnt--;
1754 phwxmits[ac_index].accnt--;
1755 }
1756 }
1757
stop_sta_xmit(struct adapter * padapter,struct sta_info * psta)1758 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
1759 {
1760 struct sta_info *psta_bmc;
1761 struct sta_xmit_priv *pstaxmitpriv;
1762 struct sta_priv *pstapriv = &padapter->stapriv;
1763 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1764
1765 pstaxmitpriv = &psta->sta_xmitpriv;
1766
1767 /* for BC/MC Frames */
1768 psta_bmc = rtw_get_bcmc_stainfo(padapter);
1769
1770 spin_lock_bh(&pxmitpriv->lock);
1771
1772 psta->state |= WIFI_SLEEP_STATE;
1773
1774 pstapriv->sta_dz_bitmap |= BIT(psta->aid);
1775
1776 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
1777 list_del_init(&pstaxmitpriv->vo_q.tx_pending);
1778
1779 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
1780 list_del_init(&pstaxmitpriv->vi_q.tx_pending);
1781
1782 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
1783 list_del_init(&pstaxmitpriv->be_q.tx_pending);
1784
1785 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
1786 list_del_init(&pstaxmitpriv->bk_q.tx_pending);
1787
1788 /* for BC/MC Frames */
1789 pstaxmitpriv = &psta_bmc->sta_xmitpriv;
1790 dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
1791 list_del_init(&pstaxmitpriv->be_q.tx_pending);
1792
1793 spin_unlock_bh(&pxmitpriv->lock);
1794 }
1795
wakeup_sta_to_xmit(struct adapter * padapter,struct sta_info * psta)1796 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
1797 {
1798 u8 update_mask = 0, wmmps_ac = 0;
1799 struct sta_info *psta_bmc;
1800 struct list_head *xmitframe_plist, *xmitframe_phead;
1801 struct xmit_frame *pxmitframe = NULL;
1802 struct sta_priv *pstapriv = &padapter->stapriv;
1803
1804 spin_lock_bh(&psta->sleep_q.lock);
1805
1806 xmitframe_phead = get_list_head(&psta->sleep_q);
1807 xmitframe_plist = xmitframe_phead->next;
1808
1809 while (xmitframe_phead != xmitframe_plist) {
1810 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1811
1812 xmitframe_plist = xmitframe_plist->next;
1813
1814 list_del_init(&pxmitframe->list);
1815
1816 switch (pxmitframe->attrib.priority) {
1817 case 1:
1818 case 2:
1819 wmmps_ac = psta->uapsd_bk & BIT(1);
1820 break;
1821 case 4:
1822 case 5:
1823 wmmps_ac = psta->uapsd_vi & BIT(1);
1824 break;
1825 case 6:
1826 case 7:
1827 wmmps_ac = psta->uapsd_vo & BIT(1);
1828 break;
1829 case 0:
1830 case 3:
1831 default:
1832 wmmps_ac = psta->uapsd_be & BIT(1);
1833 break;
1834 }
1835
1836 psta->sleepq_len--;
1837 if (psta->sleepq_len > 0)
1838 pxmitframe->attrib.mdata = 1;
1839 else
1840 pxmitframe->attrib.mdata = 0;
1841
1842 if (wmmps_ac) {
1843 psta->sleepq_ac_len--;
1844 if (psta->sleepq_ac_len > 0) {
1845 pxmitframe->attrib.mdata = 1;
1846 pxmitframe->attrib.eosp = 0;
1847 } else {
1848 pxmitframe->attrib.mdata = 0;
1849 pxmitframe->attrib.eosp = 1;
1850 }
1851 }
1852
1853 pxmitframe->attrib.triggered = 1;
1854
1855 spin_unlock_bh(&psta->sleep_q.lock);
1856 if (rtw_hal_xmit(padapter, pxmitframe))
1857 rtw_os_xmit_complete(padapter, pxmitframe);
1858 spin_lock_bh(&psta->sleep_q.lock);
1859 }
1860
1861 if (psta->sleepq_len == 0) {
1862 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1863
1864 update_mask = BIT(0);
1865
1866 if (psta->state&WIFI_SLEEP_STATE)
1867 psta->state ^= WIFI_SLEEP_STATE;
1868
1869 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1870 psta->expire_to = pstapriv->expire_to;
1871 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1872 }
1873
1874 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
1875 }
1876
1877 spin_unlock_bh(&psta->sleep_q.lock);
1878
1879 /* for BC/MC Frames */
1880 psta_bmc = rtw_get_bcmc_stainfo(padapter);
1881 if (!psta_bmc)
1882 return;
1883
1884 if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) { /* no any sta in ps mode */
1885 spin_lock_bh(&psta_bmc->sleep_q.lock);
1886
1887 xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
1888 xmitframe_plist = xmitframe_phead->next;
1889
1890 while (xmitframe_phead != xmitframe_plist) {
1891 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1892
1893 xmitframe_plist = xmitframe_plist->next;
1894
1895 list_del_init(&pxmitframe->list);
1896
1897 psta_bmc->sleepq_len--;
1898 if (psta_bmc->sleepq_len > 0)
1899 pxmitframe->attrib.mdata = 1;
1900 else
1901 pxmitframe->attrib.mdata = 0;
1902
1903 pxmitframe->attrib.triggered = 1;
1904
1905 spin_unlock_bh(&psta_bmc->sleep_q.lock);
1906 if (rtw_hal_xmit(padapter, pxmitframe))
1907 rtw_os_xmit_complete(padapter, pxmitframe);
1908 spin_lock_bh(&psta_bmc->sleep_q.lock);
1909 }
1910
1911 if (psta_bmc->sleepq_len == 0) {
1912 pstapriv->tim_bitmap &= ~BIT(0);
1913 pstapriv->sta_dz_bitmap &= ~BIT(0);
1914
1915 update_mask |= BIT(1);
1916 }
1917
1918 spin_unlock_bh(&psta_bmc->sleep_q.lock);
1919 }
1920
1921 if (update_mask)
1922 update_beacon(padapter, _TIM_IE_, NULL, false);
1923 }
1924
xmit_delivery_enabled_frames(struct adapter * padapter,struct sta_info * psta)1925 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
1926 {
1927 u8 wmmps_ac = 0;
1928 struct list_head *xmitframe_plist, *xmitframe_phead;
1929 struct xmit_frame *pxmitframe = NULL;
1930 struct sta_priv *pstapriv = &padapter->stapriv;
1931
1932 spin_lock_bh(&psta->sleep_q.lock);
1933
1934 xmitframe_phead = get_list_head(&psta->sleep_q);
1935 xmitframe_plist = xmitframe_phead->next;
1936
1937 while (xmitframe_phead != xmitframe_plist) {
1938 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1939
1940 xmitframe_plist = xmitframe_plist->next;
1941
1942 switch (pxmitframe->attrib.priority) {
1943 case 1:
1944 case 2:
1945 wmmps_ac = psta->uapsd_bk & BIT(1);
1946 break;
1947 case 4:
1948 case 5:
1949 wmmps_ac = psta->uapsd_vi & BIT(1);
1950 break;
1951 case 6:
1952 case 7:
1953 wmmps_ac = psta->uapsd_vo & BIT(1);
1954 break;
1955 case 0:
1956 case 3:
1957 default:
1958 wmmps_ac = psta->uapsd_be & BIT(1);
1959 break;
1960 }
1961
1962 if (!wmmps_ac)
1963 continue;
1964
1965 list_del_init(&pxmitframe->list);
1966
1967 psta->sleepq_len--;
1968 psta->sleepq_ac_len--;
1969
1970 if (psta->sleepq_ac_len > 0) {
1971 pxmitframe->attrib.mdata = 1;
1972 pxmitframe->attrib.eosp = 0;
1973 } else {
1974 pxmitframe->attrib.mdata = 0;
1975 pxmitframe->attrib.eosp = 1;
1976 }
1977
1978 pxmitframe->attrib.triggered = 1;
1979
1980 if (rtw_hal_xmit(padapter, pxmitframe) == true)
1981 rtw_os_xmit_complete(padapter, pxmitframe);
1982
1983 if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
1984 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1985
1986 /* update BCN for TIM IE */
1987 update_beacon(padapter, _TIM_IE_, NULL, false);
1988 }
1989 }
1990
1991 spin_unlock_bh(&psta->sleep_q.lock);
1992 }
1993
1994 #endif
1995
rtw_sctx_init(struct submit_ctx * sctx,int timeout_ms)1996 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
1997 {
1998 sctx->timeout_ms = timeout_ms;
1999 sctx->submit_time = jiffies;
2000 init_completion(&sctx->done);
2001 sctx->status = RTW_SCTX_SUBMITTED;
2002 }
2003
rtw_sctx_wait(struct submit_ctx * sctx)2004 int rtw_sctx_wait(struct submit_ctx *sctx)
2005 {
2006 int ret = _FAIL;
2007 unsigned long expire;
2008 int status = 0;
2009
2010 expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
2011 if (!wait_for_completion_timeout(&sctx->done, expire)) {
2012 /* timeout, do something?? */
2013 status = RTW_SCTX_DONE_TIMEOUT;
2014 DBG_88E("%s timeout\n", __func__);
2015 } else {
2016 status = sctx->status;
2017 }
2018
2019 if (status == RTW_SCTX_DONE_SUCCESS)
2020 ret = _SUCCESS;
2021
2022 return ret;
2023 }
2024
rtw_sctx_chk_waring_status(int status)2025 static bool rtw_sctx_chk_waring_status(int status)
2026 {
2027 switch (status) {
2028 case RTW_SCTX_DONE_UNKNOWN:
2029 case RTW_SCTX_DONE_BUF_ALLOC:
2030 case RTW_SCTX_DONE_BUF_FREE:
2031
2032 case RTW_SCTX_DONE_DRV_STOP:
2033 case RTW_SCTX_DONE_DEV_REMOVE:
2034 return true;
2035 default:
2036 return false;
2037 }
2038 }
2039
rtw_sctx_done_err(struct submit_ctx ** sctx,int status)2040 void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
2041 {
2042 if (*sctx) {
2043 if (rtw_sctx_chk_waring_status(status))
2044 DBG_88E("%s status:%d\n", __func__, status);
2045 (*sctx)->status = status;
2046 complete(&((*sctx)->done));
2047 *sctx = NULL;
2048 }
2049 }
2050
rtw_ack_tx_wait(struct xmit_priv * pxmitpriv,u32 timeout_ms)2051 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
2052 {
2053 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2054
2055 pack_tx_ops->submit_time = jiffies;
2056 pack_tx_ops->timeout_ms = timeout_ms;
2057 pack_tx_ops->status = RTW_SCTX_SUBMITTED;
2058
2059 return rtw_sctx_wait(pack_tx_ops);
2060 }
2061
rtw_ack_tx_done(struct xmit_priv * pxmitpriv,int status)2062 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status)
2063 {
2064 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2065
2066 if (pxmitpriv->ack_tx)
2067 rtw_sctx_done_err(&pack_tx_ops, status);
2068 else
2069 DBG_88E("%s ack_tx not set\n", __func__);
2070 }
2071
