1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
4 *
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.
8 *
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
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 *
19 ******************************************************************************/
20 #define _RTW_XMIT_C_
21
22 #include <osdep_service.h>
23 #include <drv_types.h>
24 #include <wifi.h>
25 #include <osdep_intf.h>
26 #include <linux/vmalloc.h>
27
28 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
29 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
30
_init_txservq(struct tx_servq * ptxservq)31 static void _init_txservq(struct tx_servq *ptxservq)
32 {
33 INIT_LIST_HEAD(&ptxservq->tx_pending);
34 _rtw_init_queue(&ptxservq->sta_pending);
35 ptxservq->qcnt = 0;
36 }
37
_rtw_init_sta_xmit_priv(struct sta_xmit_priv * psta_xmitpriv)38 void _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv)
39 {
40 memset((unsigned char *)psta_xmitpriv, 0, sizeof(struct sta_xmit_priv));
41 spin_lock_init(&psta_xmitpriv->lock);
42 _init_txservq(&psta_xmitpriv->be_q);
43 _init_txservq(&psta_xmitpriv->bk_q);
44 _init_txservq(&psta_xmitpriv->vi_q);
45 _init_txservq(&psta_xmitpriv->vo_q);
46 INIT_LIST_HEAD(&psta_xmitpriv->legacy_dz);
47 INIT_LIST_HEAD(&psta_xmitpriv->apsd);
48
49 }
50
_rtw_init_xmit_priv(struct xmit_priv * pxmitpriv,struct adapter * padapter)51 s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
52 {
53 int i;
54 struct xmit_buf *pxmitbuf;
55 struct xmit_frame *pxframe;
56 int res = _SUCCESS;
57 u32 max_xmit_extbuf_size = MAX_XMIT_EXTBUF_SZ;
58 u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
59
60
61 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
62
63 spin_lock_init(&pxmitpriv->lock);
64 sema_init(&pxmitpriv->xmit_sema, 0);
65 sema_init(&pxmitpriv->terminate_xmitthread_sema, 0);
66
67 /*
68 Please insert all the queue initializaiton using _rtw_init_queue below
69 */
70
71 pxmitpriv->adapter = padapter;
72
73 _rtw_init_queue(&pxmitpriv->be_pending);
74 _rtw_init_queue(&pxmitpriv->bk_pending);
75 _rtw_init_queue(&pxmitpriv->vi_pending);
76 _rtw_init_queue(&pxmitpriv->vo_pending);
77 _rtw_init_queue(&pxmitpriv->bm_pending);
78
79 _rtw_init_queue(&pxmitpriv->free_xmit_queue);
80
81 /*
82 Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME,
83 and initialize free_xmit_frame below.
84 Please also apply free_txobj to link_up all the xmit_frames...
85 */
86
87 pxmitpriv->pallocated_frame_buf = vzalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4);
88
89 if (pxmitpriv->pallocated_frame_buf == NULL) {
90 pxmitpriv->pxmit_frame_buf = NULL;
91 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_frame fail!\n"));
92 res = _FAIL;
93 goto exit;
94 }
95 pxmitpriv->pxmit_frame_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(pxmitpriv->pallocated_frame_buf), 4);
96 /* pxmitpriv->pxmit_frame_buf = pxmitpriv->pallocated_frame_buf + 4 - */
97 /* ((size_t) (pxmitpriv->pallocated_frame_buf) &3); */
98
99 pxframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
100
101 for (i = 0; i < NR_XMITFRAME; i++) {
102 INIT_LIST_HEAD(&(pxframe->list));
103
104 pxframe->padapter = padapter;
105 pxframe->frame_tag = NULL_FRAMETAG;
106
107 pxframe->pkt = NULL;
108
109 pxframe->buf_addr = NULL;
110 pxframe->pxmitbuf = NULL;
111
112 list_add_tail(&(pxframe->list), &(pxmitpriv->free_xmit_queue.queue));
113
114 pxframe++;
115 }
116
117 pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
118
119 pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
120
121 /* init xmit_buf */
122 _rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
123 _rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
124
125 pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
126
127 if (pxmitpriv->pallocated_xmitbuf == NULL) {
128 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_buf fail!\n"));
129 res = _FAIL;
130 goto exit;
131 }
132
133 pxmitpriv->pxmitbuf = (u8 *)N_BYTE_ALIGMENT((size_t)(pxmitpriv->pallocated_xmitbuf), 4);
134 /* pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 - */
135 /* ((size_t) (pxmitpriv->pallocated_xmitbuf) &3); */
136
137 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
138
139 for (i = 0; i < NR_XMITBUFF; i++) {
140 INIT_LIST_HEAD(&pxmitbuf->list);
141
142 pxmitbuf->priv_data = NULL;
143 pxmitbuf->padapter = padapter;
144 pxmitbuf->ext_tag = false;
145
146 /* Tx buf allocation may fail sometimes, so sleep and retry. */
147 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
148 if (res == _FAIL) {
149 msleep(10);
150 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
151 if (res == _FAIL) {
152 goto exit;
153 }
154 }
155
156 pxmitbuf->flags = XMIT_VO_QUEUE;
157
158 list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmitbuf_queue.queue));
159 pxmitbuf++;
160 }
161
162 pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
163
164 /* Init xmit extension buff */
165 _rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
166
167 pxmitpriv->pallocated_xmit_extbuf = vzalloc(num_xmit_extbuf * sizeof(struct xmit_buf) + 4);
168
169 if (pxmitpriv->pallocated_xmit_extbuf == NULL) {
170 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_extbuf fail!\n"));
171 res = _FAIL;
172 goto exit;
173 }
174
175 pxmitpriv->pxmit_extbuf = (u8 *)N_BYTE_ALIGMENT((size_t)(pxmitpriv->pallocated_xmit_extbuf), 4);
176
177 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
178
179 for (i = 0; i < num_xmit_extbuf; i++) {
180 INIT_LIST_HEAD(&pxmitbuf->list);
181
182 pxmitbuf->priv_data = NULL;
183 pxmitbuf->padapter = padapter;
184 pxmitbuf->ext_tag = true;
185
186 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ);
187 if (res == _FAIL) {
188 res = _FAIL;
189 goto exit;
190 }
191
192 list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmit_extbuf_queue.queue));
193 pxmitbuf++;
194 }
195
196 pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
197
198 rtw_alloc_hwxmits(padapter);
199 rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
200
201 for (i = 0; i < 4; i++)
202 pxmitpriv->wmm_para_seq[i] = i;
203
204 pxmitpriv->txirp_cnt = 1;
205
206 sema_init(&(pxmitpriv->tx_retevt), 0);
207
208 /* per AC pending irp */
209 pxmitpriv->beq_cnt = 0;
210 pxmitpriv->bkq_cnt = 0;
211 pxmitpriv->viq_cnt = 0;
212 pxmitpriv->voq_cnt = 0;
213
214 pxmitpriv->ack_tx = false;
215 mutex_init(&pxmitpriv->ack_tx_mutex);
216 rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
217
218 rtw_hal_init_xmit_priv(padapter);
219
220 exit:
221
222
223 return res;
224 }
225
_rtw_free_xmit_priv(struct xmit_priv * pxmitpriv)226 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
227 {
228 int i;
229 struct adapter *padapter = pxmitpriv->adapter;
230 struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
231 struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
232 u32 max_xmit_extbuf_size = MAX_XMIT_EXTBUF_SZ;
233 u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
234
235 if (pxmitpriv->pxmit_frame_buf == NULL)
236 return;
237
238 for (i = 0; i < NR_XMITFRAME; i++) {
239 rtw_os_xmit_complete(padapter, pxmitframe);
240
241 pxmitframe++;
242 }
243
244 for (i = 0; i < NR_XMITBUFF; i++) {
245 rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
246 pxmitbuf++;
247 }
248
249 if (pxmitpriv->pallocated_frame_buf)
250 vfree(pxmitpriv->pallocated_frame_buf);
251
252 if (pxmitpriv->pallocated_xmitbuf)
253 vfree(pxmitpriv->pallocated_xmitbuf);
254
255 /* free xmit extension buff */
256 pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
257 for (i = 0; i < num_xmit_extbuf; i++) {
258 rtw_os_xmit_resource_free(padapter, pxmitbuf, (max_xmit_extbuf_size + XMITBUF_ALIGN_SZ));
259 pxmitbuf++;
260 }
261
262 if (pxmitpriv->pallocated_xmit_extbuf) {
263 vfree(pxmitpriv->pallocated_xmit_extbuf);
264 }
265
266 rtw_free_hwxmits(padapter);
267
268 mutex_destroy(&pxmitpriv->ack_tx_mutex);
269 }
270
update_attrib_vcs_info(struct adapter * padapter,struct xmit_frame * pxmitframe)271 static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
272 {
273 u32 sz;
274 struct pkt_attrib *pattrib = &pxmitframe->attrib;
275 struct sta_info *psta = pattrib->psta;
276 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
277 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
278
279 if (pattrib->nr_frags != 1)
280 sz = padapter->xmitpriv.frag_len;
281 else /* no frag */
282 sz = pattrib->last_txcmdsz;
283
284 /* (1) RTS_Threshold is compared to the MPDU, not MSDU. */
285 /* (2) If there are more than one frag in this MSDU, only the first frag uses protection frame. */
286 /* Other fragments are protected by previous fragment. */
287 /* So we only need to check the length of first fragment. */
288 if (pmlmeext->cur_wireless_mode < WIRELESS_11_24N || padapter->registrypriv.wifi_spec) {
289 if (sz > padapter->registrypriv.rts_thresh) {
290 pattrib->vcs_mode = RTS_CTS;
291 } else {
292 if (psta->rtsen)
293 pattrib->vcs_mode = RTS_CTS;
294 else if (psta->cts2self)
295 pattrib->vcs_mode = CTS_TO_SELF;
296 else
297 pattrib->vcs_mode = NONE_VCS;
298 }
299 } else {
300 while (true) {
301 /* IOT action */
302 if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_ATHEROS) && pattrib->ampdu_en &&
303 (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)) {
304 pattrib->vcs_mode = CTS_TO_SELF;
305 break;
306 }
307
308 /* check ERP protection */
309 if (psta->rtsen || psta->cts2self) {
310 if (psta->rtsen)
311 pattrib->vcs_mode = RTS_CTS;
312 else if (psta->cts2self)
313 pattrib->vcs_mode = CTS_TO_SELF;
314
315 break;
316 }
317
318 /* check HT op mode */
319 if (pattrib->ht_en) {
320 u8 htopmode = pmlmeinfo->HT_protection;
321 if ((pmlmeext->cur_bwmode && (htopmode == 2 || htopmode == 3)) ||
322 (!pmlmeext->cur_bwmode && htopmode == 3)) {
323 pattrib->vcs_mode = RTS_CTS;
324 break;
325 }
326 }
327
328 /* check rts */
329 if (sz > padapter->registrypriv.rts_thresh) {
330 pattrib->vcs_mode = RTS_CTS;
331 break;
332 }
333
334 /* to do list: check MIMO power save condition. */
335
336 /* check AMPDU aggregation for TXOP */
337 if (pattrib->ampdu_en) {
338 pattrib->vcs_mode = RTS_CTS;
339 break;
340 }
341
342 pattrib->vcs_mode = NONE_VCS;
343 break;
344 }
345 }
346 }
347
update_attrib_phy_info(struct pkt_attrib * pattrib,struct sta_info * psta)348 static void update_attrib_phy_info(struct pkt_attrib *pattrib, struct sta_info *psta)
349 {
350 /*if (psta->rtsen)
351 pattrib->vcs_mode = RTS_CTS;
352 else if (psta->cts2self)
353 pattrib->vcs_mode = CTS_TO_SELF;
354 else
355 pattrib->vcs_mode = NONE_VCS;*/
356
357 pattrib->mdata = 0;
358 pattrib->eosp = 0;
359 pattrib->triggered = 0;
360
361 /* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
362 pattrib->qos_en = psta->qos_option;
363
364 pattrib->raid = psta->raid;
365 pattrib->ht_en = psta->htpriv.ht_option;
366 pattrib->bwmode = psta->htpriv.bwmode;
367 pattrib->ch_offset = psta->htpriv.ch_offset;
368 pattrib->sgi = psta->htpriv.sgi;
369 pattrib->ampdu_en = false;
370 pattrib->retry_ctrl = false;
371 }
372
qos_acm(u8 acm_mask,u8 priority)373 u8 qos_acm(u8 acm_mask, u8 priority)
374 {
375 u8 change_priority = priority;
376
377 switch (priority) {
378 case 0:
379 case 3:
380 if (acm_mask & BIT(1))
381 change_priority = 1;
382 break;
383 case 1:
384 case 2:
385 break;
386 case 4:
387 case 5:
388 if (acm_mask & BIT(2))
389 change_priority = 0;
390 break;
391 case 6:
392 case 7:
393 if (acm_mask & BIT(3))
394 change_priority = 5;
395 break;
396 default:
397 DBG_88E("qos_acm(): invalid pattrib->priority: %d!!!\n", priority);
398 break;
399 }
400
401 return change_priority;
402 }
403
set_qos(struct pkt_file * ppktfile,struct pkt_attrib * pattrib)404 static void set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
405 {
406 struct ethhdr etherhdr;
407 struct iphdr ip_hdr;
408 s32 user_prio = 0;
409
410 _rtw_open_pktfile(ppktfile->pkt, ppktfile);
411 _rtw_pktfile_read(ppktfile, (unsigned char *)ðerhdr, ETH_HLEN);
412
413 /* get user_prio from IP hdr */
414 if (pattrib->ether_type == 0x0800) {
415 _rtw_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr));
416 /* user_prio = (ntohs(ip_hdr.tos) >> 5) & 0x3; */
417 user_prio = ip_hdr.tos >> 5;
418 } else if (pattrib->ether_type == 0x888e) {
419 /* "When priority processing of data frames is supported, */
420 /* a STA's SME should send EAPOL-Key frames at the highest priority." */
421 user_prio = 7;
422 }
423
424 pattrib->priority = user_prio;
425 pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
426 pattrib->subtype = WIFI_QOS_DATA_TYPE;
427 }
428
update_attrib(struct adapter * padapter,struct sk_buff * pkt,struct pkt_attrib * pattrib)429 static s32 update_attrib(struct adapter *padapter, struct sk_buff *pkt, struct pkt_attrib *pattrib)
430 {
431 struct pkt_file pktfile;
432 struct sta_info *psta = NULL;
433 struct ethhdr etherhdr;
434
435 int bmcast;
436 struct sta_priv *pstapriv = &padapter->stapriv;
437 struct security_priv *psecuritypriv = &padapter->securitypriv;
438 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
439 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
440 int res = _SUCCESS;
441
442
443 _rtw_open_pktfile(pkt, &pktfile);
444 _rtw_pktfile_read(&pktfile, (u8 *)ðerhdr, ETH_HLEN);
445
446 pattrib->ether_type = ntohs(etherhdr.h_proto);
447
448 memcpy(pattrib->dst, ðerhdr.h_dest, ETH_ALEN);
449 memcpy(pattrib->src, ðerhdr.h_source, ETH_ALEN);
450
451 pattrib->pctrl = 0;
452
453 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
454 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
455 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
456 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
457 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
458 memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
459 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
460 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
461 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
462 memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
463 }
464
465 pattrib->pktlen = pktfile.pkt_len;
466
467 if (ETH_P_IP == pattrib->ether_type) {
468 /* The following is for DHCP and ARP packet, we use cck1M to tx these packets and let LPS awake some time */
469 /* to prevent DHCP protocol fail */
470 u8 tmp[24];
471 _rtw_pktfile_read(&pktfile, &tmp[0], 24);
472 pattrib->dhcp_pkt = 0;
473 if (pktfile.pkt_len > 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
474 if (ETH_P_IP == pattrib->ether_type) {/* IP header */
475 if (((tmp[21] == 68) && (tmp[23] == 67)) ||
476 ((tmp[21] == 67) && (tmp[23] == 68))) {
477 /* 68 : UDP BOOTP client */
478 /* 67 : UDP BOOTP server */
479 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====================== update_attrib: get DHCP Packet\n"));
480 /* Use low rate to send DHCP packet. */
481 pattrib->dhcp_pkt = 1;
482 }
483 }
484 }
485 } else if (0x888e == pattrib->ether_type) {
486 DBG_88E_LEVEL(_drv_info_, "send eapol packet\n");
487 }
488
489 if ((pattrib->ether_type == 0x888e) || (pattrib->dhcp_pkt == 1))
490 rtw_set_scan_deny(padapter, 3000);
491
492 /* If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
493 if ((pattrib->ether_type == 0x0806) || (pattrib->ether_type == 0x888e) || (pattrib->dhcp_pkt == 1))
494 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
495
496 bmcast = IS_MCAST(pattrib->ra);
497
498 /* get sta_info */
499 if (bmcast) {
500 psta = rtw_get_bcmc_stainfo(padapter);
501 } else {
502 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
503 if (psta == NULL) { /* if we cannot get psta => drrp the pkt */
504 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra: %pM\n", (pattrib->ra)));
505 res = _FAIL;
506 goto exit;
507 } else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) && (!(psta->state & _FW_LINKED))) {
508 res = _FAIL;
509 goto exit;
510 }
511 }
512
513 if (psta) {
514 pattrib->mac_id = psta->mac_id;
515 /* DBG_88E("%s ==> mac_id(%d)\n", __func__, pattrib->mac_id); */
516 pattrib->psta = psta;
517 } else {
518 /* if we cannot get psta => drop the pkt */
519 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:%pM\n", (pattrib->ra)));
520 res = _FAIL;
521 goto exit;
522 }
523
524 pattrib->ack_policy = 0;
525 /* get ether_hdr_len */
526 pattrib->pkt_hdrlen = ETH_HLEN;/* pattrib->ether_type == 0x8100) ? (14 + 4): 14; vlan tag */
527
528 pattrib->hdrlen = WLAN_HDR_A3_LEN;
529 pattrib->subtype = WIFI_DATA_TYPE;
530 pattrib->priority = 0;
531
532 if (check_fwstate(pmlmepriv, WIFI_AP_STATE|WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
533 if (psta->qos_option)
534 set_qos(&pktfile, pattrib);
535 } else {
536 if (pqospriv->qos_option) {
537 set_qos(&pktfile, pattrib);
538
539 if (pmlmepriv->acm_mask != 0)
540 pattrib->priority = qos_acm(pmlmepriv->acm_mask, pattrib->priority);
541 }
542 }
543
544 if (psta->ieee8021x_blocked) {
545 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\n psta->ieee8021x_blocked == true\n"));
546
547 pattrib->encrypt = 0;
548
549 if ((pattrib->ether_type != 0x888e) && !check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
550 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\npsta->ieee8021x_blocked == true, pattrib->ether_type(%.4x) != 0x888e\n", pattrib->ether_type));
551 res = _FAIL;
552 goto exit;
553 }
554 } else {
555 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast);
556
557 switch (psecuritypriv->dot11AuthAlgrthm) {
558 case dot11AuthAlgrthm_Open:
559 case dot11AuthAlgrthm_Shared:
560 case dot11AuthAlgrthm_Auto:
561 pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
562 break;
563 case dot11AuthAlgrthm_8021X:
564 if (bmcast)
565 pattrib->key_idx = (u8)psecuritypriv->dot118021XGrpKeyid;
566 else
567 pattrib->key_idx = 0;
568 break;
569 default:
570 pattrib->key_idx = 0;
571 break;
572 }
573 }
574
575 switch (pattrib->encrypt) {
576 case _WEP40_:
577 case _WEP104_:
578 pattrib->iv_len = 4;
579 pattrib->icv_len = 4;
580 break;
581 case _TKIP_:
582 pattrib->iv_len = 8;
583 pattrib->icv_len = 4;
584
585 if (padapter->securitypriv.busetkipkey == _FAIL) {
586 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
587 ("\npadapter->securitypriv.busetkipkey(%d) == _FAIL drop packet\n",
588 padapter->securitypriv.busetkipkey));
589 res = _FAIL;
590 goto exit;
591 }
592 break;
593 case _AES_:
594 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("pattrib->encrypt=%d (_AES_)\n", pattrib->encrypt));
595 pattrib->iv_len = 8;
596 pattrib->icv_len = 8;
597 break;
598 default:
599 pattrib->iv_len = 0;
600 pattrib->icv_len = 0;
601 break;
602 }
603
604 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
605 ("update_attrib: encrypt=%d securitypriv.sw_encrypt=%d\n",
606 pattrib->encrypt, padapter->securitypriv.sw_encrypt));
607
608 if (pattrib->encrypt &&
609 (padapter->securitypriv.sw_encrypt || !psecuritypriv->hw_decrypted)) {
610 pattrib->bswenc = true;
611 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
612 ("update_attrib: encrypt=%d securitypriv.hw_decrypted=%d bswenc = true\n",
613 pattrib->encrypt, padapter->securitypriv.sw_encrypt));
614 } else {
615 pattrib->bswenc = false;
616 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("update_attrib: bswenc = false\n"));
617 }
618
619 update_attrib_phy_info(pattrib, psta);
620
621 exit:
622
623
624 return res;
625 }
626
xmitframe_addmic(struct adapter * padapter,struct xmit_frame * pxmitframe)627 static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitframe)
628 {
629 int curfragnum, length;
630 u8 *pframe, *payload, mic[8];
631 struct mic_data micdata;
632 struct sta_info *stainfo;
633 struct pkt_attrib *pattrib = &pxmitframe->attrib;
634 struct security_priv *psecuritypriv = &padapter->securitypriv;
635 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
636 u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
637 u8 hw_hdr_offset = 0;
638 int bmcst = IS_MCAST(pattrib->ra);
639
640 if (pattrib->psta)
641 stainfo = pattrib->psta;
642 else
643 stainfo = rtw_get_stainfo(&padapter->stapriv , &pattrib->ra[0]);
644
645
646 hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
647
648 if (pattrib->encrypt == _TKIP_) {/* if (psecuritypriv->dot11PrivacyAlgrthm == _TKIP_PRIVACY_) */
649 /* encode mic code */
650 if (stainfo != NULL) {
651 u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
652 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
653 0x0, 0x0};
654
655 pframe = pxmitframe->buf_addr + hw_hdr_offset;
656
657 if (bmcst) {
658 if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
659 return _FAIL;
660 /* start to calculate the mic code */
661 rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
662 } else {
663 if (!memcmp(&stainfo->dot11tkiptxmickey.skey[0], null_key, 16)) {
664 /* DbgPrint("\nxmitframe_addmic:stainfo->dot11tkiptxmickey == 0\n"); */
665 /* msleep(10); */
666 return _FAIL;
667 }
668 /* start to calculate the mic code */
669 rtw_secmicsetkey(&micdata, &stainfo->dot11tkiptxmickey.skey[0]);
670 }
671
672 if (pframe[1]&1) { /* ToDS == 1 */
673 rtw_secmicappend(&micdata, &pframe[16], 6); /* DA */
674 if (pframe[1]&2) /* From Ds == 1 */
675 rtw_secmicappend(&micdata, &pframe[24], 6);
676 else
677 rtw_secmicappend(&micdata, &pframe[10], 6);
678 } else { /* ToDS == 0 */
679 rtw_secmicappend(&micdata, &pframe[4], 6); /* DA */
680 if (pframe[1]&2) /* From Ds == 1 */
681 rtw_secmicappend(&micdata, &pframe[16], 6);
682 else
683 rtw_secmicappend(&micdata, &pframe[10], 6);
684 }
685
686 if (pattrib->qos_en)
687 priority[0] = (u8)pxmitframe->attrib.priority;
688
689 rtw_secmicappend(&micdata, &priority[0], 4);
690
691 payload = pframe;
692
693 for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
694 payload = (u8 *)round_up((size_t)(payload), 4);
695 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
696 ("=== curfragnum=%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
697 curfragnum, *payload, *(payload+1),
698 *(payload+2), *(payload+3),
699 *(payload+4), *(payload+5),
700 *(payload+6), *(payload+7)));
701
702 payload = payload+pattrib->hdrlen+pattrib->iv_len;
703 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
704 ("curfragnum=%d pattrib->hdrlen=%d pattrib->iv_len=%d",
705 curfragnum, pattrib->hdrlen, pattrib->iv_len));
706 if ((curfragnum+1) == pattrib->nr_frags) {
707 length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
708 rtw_secmicappend(&micdata, payload, length);
709 payload = payload+length;
710 } else {
711 length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
712 rtw_secmicappend(&micdata, payload, length);
713 payload = payload+length+pattrib->icv_len;
714 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum=%d length=%d pattrib->icv_len=%d", curfragnum, length, pattrib->icv_len));
715 }
716 }
717 rtw_secgetmic(&micdata, &(mic[0]));
718 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: before add mic code!!!\n"));
719 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: pattrib->last_txcmdsz=%d!!!\n", pattrib->last_txcmdsz));
720 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: mic[0]=0x%.2x , mic[1]=0x%.2x , mic[2]= 0x%.2x, mic[3]=0x%.2x\n\
721 mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
722 mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
723 /* add mic code and add the mic code length in last_txcmdsz */
724
725 memcpy(payload, &(mic[0]), 8);
726 pattrib->last_txcmdsz += 8;
727
728 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ======== last pkt ========\n"));
729 payload = payload-pattrib->last_txcmdsz+8;
730 for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum = curfragnum+8)
731 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
732 (" %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x, %.2x ",
733 *(payload+curfragnum), *(payload+curfragnum+1),
734 *(payload+curfragnum+2), *(payload+curfragnum+3),
735 *(payload+curfragnum+4), *(payload+curfragnum+5),
736 *(payload+curfragnum+6), *(payload+curfragnum+7)));
737 } else {
738 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: rtw_get_stainfo==NULL!!!\n"));
739 }
740 }
741
742
743 return _SUCCESS;
744 }
745
xmitframe_swencrypt(struct adapter * padapter,struct xmit_frame * pxmitframe)746 static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
747 {
748 struct pkt_attrib *pattrib = &pxmitframe->attrib;
749
750
751 if (pattrib->bswenc) {
752 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("### xmitframe_swencrypt\n"));
753 switch (pattrib->encrypt) {
754 case _WEP40_:
755 case _WEP104_:
756 rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
757 break;
758 case _TKIP_:
759 rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
760 break;
761 case _AES_:
762 rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
763 break;
764 default:
765 break;
766 }
767 } else {
768 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_, ("### xmitframe_hwencrypt\n"));
769 }
770
771
772 return _SUCCESS;
773 }
774
rtw_make_wlanhdr(struct adapter * padapter,u8 * hdr,struct pkt_attrib * pattrib)775 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
776 {
777 u16 *qc;
778
779 struct rtw_ieee80211_hdr *pwlanhdr = (struct rtw_ieee80211_hdr *)hdr;
780 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
781 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
782 u8 qos_option = false;
783
784 int res = _SUCCESS;
785 __le16 *fctrl = &pwlanhdr->frame_ctl;
786
787 struct sta_info *psta;
788
789 int bmcst = IS_MCAST(pattrib->ra);
790
791
792 if (pattrib->psta) {
793 psta = pattrib->psta;
794 } else {
795 if (bmcst) {
796 psta = rtw_get_bcmc_stainfo(padapter);
797 } else {
798 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
799 }
800 }
801
802 memset(hdr, 0, WLANHDR_OFFSET);
803
804 SetFrameSubType(fctrl, pattrib->subtype);
805
806 if (pattrib->subtype & WIFI_DATA_TYPE) {
807 if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)) {
808 /* to_ds = 1, fr_ds = 0; */
809 /* Data transfer to AP */
810 SetToDs(fctrl);
811 memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), ETH_ALEN);
812 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
813 memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN);
814
815 if (pqospriv->qos_option)
816 qos_option = true;
817 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
818 /* to_ds = 0, fr_ds = 1; */
819 SetFrDs(fctrl);
820 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
821 memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN);
822 memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);
823
824 if (psta->qos_option)
825 qos_option = true;
826 } else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
827 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
828 memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
829 memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
830 memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);
831
832 if (psta->qos_option)
833 qos_option = true;
834 } else {
835 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));
836 res = _FAIL;
837 goto exit;
838 }
839
840 if (pattrib->mdata)
841 SetMData(fctrl);
842
843 if (pattrib->encrypt)
844 SetPrivacy(fctrl);
845
846 if (qos_option) {
847 qc = (unsigned short *)(hdr + pattrib->hdrlen - 2);
848
849 if (pattrib->priority)
850 SetPriority(qc, pattrib->priority);
851
852 SetEOSP(qc, pattrib->eosp);
853
854 SetAckpolicy(qc, pattrib->ack_policy);
855 }
856
857 /* TODO: fill HT Control Field */
858
859 /* Update Seq Num will be handled by f/w */
860 if (psta) {
861 psta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
862 psta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
863
864 pattrib->seqnum = psta->sta_xmitpriv.txseq_tid[pattrib->priority];
865
866 SetSeqNum(hdr, pattrib->seqnum);
867
868 /* check if enable ampdu */
869 if (pattrib->ht_en && psta->htpriv.ampdu_enable) {
870 if (psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
871 pattrib->ampdu_en = true;
872 }
873
874 /* re-check if enable ampdu by BA_starting_seqctrl */
875 if (pattrib->ampdu_en) {
876 u16 tx_seq;
877
878 tx_seq = psta->BA_starting_seqctrl[pattrib->priority & 0x0f];
879
880 /* check BA_starting_seqctrl */
881 if (SN_LESS(pattrib->seqnum, tx_seq)) {
882 pattrib->ampdu_en = false;/* AGG BK */
883 } else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {
884 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (tx_seq+1)&0xfff;
885
886 pattrib->ampdu_en = true;/* AGG EN */
887 } else {
888 psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (pattrib->seqnum+1)&0xfff;
889 pattrib->ampdu_en = true;/* AGG EN */
890 }
891 }
892 }
893 }
894 exit:
895
896 return res;
897 }
898
rtw_txframes_pending(struct adapter * padapter)899 s32 rtw_txframes_pending(struct adapter *padapter)
900 {
901 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
902
903 return (!list_empty(&pxmitpriv->be_pending.queue) ||
904 !list_empty(&pxmitpriv->bk_pending.queue) ||
905 !list_empty(&pxmitpriv->vi_pending.queue) ||
906 !list_empty(&pxmitpriv->vo_pending.queue));
907 }
908
rtw_txframes_sta_ac_pending(struct adapter * padapter,struct pkt_attrib * pattrib)909 s32 rtw_txframes_sta_ac_pending(struct adapter *padapter, struct pkt_attrib *pattrib)
910 {
911 struct sta_info *psta;
912 struct tx_servq *ptxservq;
913 int priority = pattrib->priority;
914
915 psta = pattrib->psta;
916
917 switch (priority) {
918 case 1:
919 case 2:
920 ptxservq = &(psta->sta_xmitpriv.bk_q);
921 break;
922 case 4:
923 case 5:
924 ptxservq = &(psta->sta_xmitpriv.vi_q);
925 break;
926 case 6:
927 case 7:
928 ptxservq = &(psta->sta_xmitpriv.vo_q);
929 break;
930 case 0:
931 case 3:
932 default:
933 ptxservq = &(psta->sta_xmitpriv.be_q);
934 break;
935 }
936
937 return ptxservq->qcnt;
938 }
939
940 /*
941 * Calculate wlan 802.11 packet MAX size from pkt_attrib
942 * This function doesn't consider fragment case
943 */
rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib * pattrib)944 u32 rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib *pattrib)
945 {
946 u32 len = 0;
947
948 len = pattrib->hdrlen + pattrib->iv_len; /* WLAN Header and IV */
949 len += SNAP_SIZE + sizeof(u16); /* LLC */
950 len += pattrib->pktlen;
951 if (pattrib->encrypt == _TKIP_)
952 len += 8; /* MIC */
953 len += ((pattrib->bswenc) ? pattrib->icv_len : 0); /* ICV */
954
955 return len;
956 }
957
958 /*
959
960 This sub-routine will perform all the following:
961
962 1. remove 802.3 header.
963 2. create wlan_header, based on the info in pxmitframe
964 3. append sta's iv/ext-iv
965 4. append LLC
966 5. move frag chunk from pframe to pxmitframe->mem
967 6. apply sw-encrypt, if necessary.
968
969 */
rtw_xmitframe_coalesce(struct adapter * padapter,struct sk_buff * pkt,struct xmit_frame * pxmitframe)970 s32 rtw_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, struct xmit_frame *pxmitframe)
971 {
972 struct pkt_file pktfile;
973 s32 frg_inx, frg_len, mpdu_len, llc_sz, mem_sz;
974 size_t addr;
975 u8 *pframe, *mem_start;
976 u8 hw_hdr_offset;
977 struct sta_info *psta;
978 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
979 struct pkt_attrib *pattrib = &pxmitframe->attrib;
980 u8 *pbuf_start;
981 s32 bmcst = IS_MCAST(pattrib->ra);
982 s32 res = _SUCCESS;
983
984
985 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
986
987 if (psta == NULL)
988 return _FAIL;
989
990 if (pxmitframe->buf_addr == NULL) {
991 DBG_88E("==> %s buf_addr == NULL\n", __func__);
992 return _FAIL;
993 }
994
995 pbuf_start = pxmitframe->buf_addr;
996
997 hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
998
999 mem_start = pbuf_start + hw_hdr_offset;
1000
1001 if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
1002 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n"));
1003 DBG_88E("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n");
1004 res = _FAIL;
1005 goto exit;
1006 }
1007
1008 _rtw_open_pktfile(pkt, &pktfile);
1009 _rtw_pktfile_read(&pktfile, NULL, pattrib->pkt_hdrlen);
1010
1011 frg_inx = 0;
1012 frg_len = pxmitpriv->frag_len - 4;/* 2346-4 = 2342 */
1013
1014 while (1) {
1015 llc_sz = 0;
1016
1017 mpdu_len = frg_len;
1018
1019 pframe = mem_start;
1020
1021 SetMFrag(mem_start);
1022
1023 pframe += pattrib->hdrlen;
1024 mpdu_len -= pattrib->hdrlen;
1025
1026 /* adding icv, if necessary... */
1027 if (pattrib->iv_len) {
1028 switch (pattrib->encrypt) {
1029 case _WEP40_:
1030 case _WEP104_:
1031 WEP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1032 break;
1033 case _TKIP_:
1034 if (bmcst)
1035 TKIP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1036 else
1037 TKIP_IV(pattrib->iv, psta->dot11txpn, 0);
1038 break;
1039 case _AES_:
1040 if (bmcst)
1041 AES_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1042 else
1043 AES_IV(pattrib->iv, psta->dot11txpn, 0);
1044 break;
1045 }
1046
1047 memcpy(pframe, pattrib->iv, pattrib->iv_len);
1048
1049 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
1050 ("rtw_xmitframe_coalesce: keyid=%d pattrib->iv[3]=%.2x pframe=%.2x %.2x %.2x %.2x\n",
1051 padapter->securitypriv.dot11PrivacyKeyIndex, pattrib->iv[3], *pframe, *(pframe+1), *(pframe+2), *(pframe+3)));
1052
1053 pframe += pattrib->iv_len;
1054
1055 mpdu_len -= pattrib->iv_len;
1056 }
1057
1058 if (frg_inx == 0) {
1059 llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
1060 pframe += llc_sz;
1061 mpdu_len -= llc_sz;
1062 }
1063
1064 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1065 mpdu_len -= pattrib->icv_len;
1066 }
1067
1068 if (bmcst) {
1069 /* don't do fragment to broadcat/multicast packets */
1070 mem_sz = _rtw_pktfile_read(&pktfile, pframe, pattrib->pktlen);
1071 } else {
1072 mem_sz = _rtw_pktfile_read(&pktfile, pframe, mpdu_len);
1073 }
1074
1075 pframe += mem_sz;
1076
1077 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1078 memcpy(pframe, pattrib->icv, pattrib->icv_len);
1079 pframe += pattrib->icv_len;
1080 }
1081
1082 frg_inx++;
1083
1084 if (bmcst || rtw_endofpktfile(&pktfile)) {
1085 pattrib->nr_frags = frg_inx;
1086
1087 pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz : 0) +
1088 ((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
1089
1090 ClearMFrag(mem_start);
1091
1092 break;
1093 } else {
1094 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: There're still something in packet!\n", __func__));
1095 }
1096
1097 addr = (size_t)(pframe);
1098
1099 mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
1100 memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
1101 }
1102
1103 if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
1104 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
1105 DBG_88E("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
1106 res = _FAIL;
1107 goto exit;
1108 }
1109
1110 xmitframe_swencrypt(padapter, pxmitframe);
1111
1112 if (!bmcst)
1113 update_attrib_vcs_info(padapter, pxmitframe);
1114 else
1115 pattrib->vcs_mode = NONE_VCS;
1116
1117 exit:
1118
1119
1120 return res;
1121 }
1122
1123 /* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
1124 * IEEE LLC/SNAP header contains 8 octets
1125 * First 3 octets comprise the LLC portion
1126 * SNAP portion, 5 octets, is divided into two fields:
1127 * Organizationally Unique Identifier(OUI), 3 octets,
1128 * type, defined by that organization, 2 octets.
1129 */
rtw_put_snap(u8 * data,u16 h_proto)1130 s32 rtw_put_snap(u8 *data, u16 h_proto)
1131 {
1132 struct ieee80211_snap_hdr *snap;
1133 u8 *oui;
1134
1135
1136 snap = (struct ieee80211_snap_hdr *)data;
1137 snap->dsap = 0xaa;
1138 snap->ssap = 0xaa;
1139 snap->ctrl = 0x03;
1140
1141 if (h_proto == 0x8137 || h_proto == 0x80f3)
1142 oui = P802_1H_OUI;
1143 else
1144 oui = RFC1042_OUI;
1145
1146 snap->oui[0] = oui[0];
1147 snap->oui[1] = oui[1];
1148 snap->oui[2] = oui[2];
1149
1150 *(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
1151
1152
1153 return SNAP_SIZE + sizeof(u16);
1154 }
1155
rtw_update_protection(struct adapter * padapter,u8 * ie,uint ie_len)1156 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
1157 {
1158 uint protection;
1159 u8 *perp;
1160 int erp_len;
1161 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1162 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1163
1164
1165 switch (pxmitpriv->vcs_setting) {
1166 case DISABLE_VCS:
1167 pxmitpriv->vcs = NONE_VCS;
1168 break;
1169 case ENABLE_VCS:
1170 break;
1171 case AUTO_VCS:
1172 default:
1173 perp = rtw_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
1174 if (perp == NULL) {
1175 pxmitpriv->vcs = NONE_VCS;
1176 } else {
1177 protection = (*(perp + 2)) & BIT(1);
1178 if (protection) {
1179 if (pregistrypriv->vcs_type == RTS_CTS)
1180 pxmitpriv->vcs = RTS_CTS;
1181 else
1182 pxmitpriv->vcs = CTS_TO_SELF;
1183 } else {
1184 pxmitpriv->vcs = NONE_VCS;
1185 }
1186 }
1187 break;
1188 }
1189
1190 }
1191
rtw_count_tx_stats(struct adapter * padapter,struct xmit_frame * pxmitframe,int sz)1192 void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
1193 {
1194 struct sta_info *psta = NULL;
1195 struct stainfo_stats *pstats = NULL;
1196 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1197 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1198
1199 if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) {
1200 pxmitpriv->tx_bytes += sz;
1201 pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pxmitframe->agg_num;
1202
1203 psta = pxmitframe->attrib.psta;
1204 if (psta) {
1205 pstats = &psta->sta_stats;
1206 pstats->tx_pkts += pxmitframe->agg_num;
1207 pstats->tx_bytes += sz;
1208 }
1209 }
1210 }
1211
rtw_alloc_xmitbuf_ext(struct xmit_priv * pxmitpriv)1212 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
1213 {
1214 unsigned long irql;
1215 struct xmit_buf *pxmitbuf = NULL;
1216 struct list_head *plist, *phead;
1217 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1218
1219
1220 spin_lock_irqsave(&pfree_queue->lock, irql);
1221
1222 if (list_empty(&pfree_queue->queue)) {
1223 pxmitbuf = NULL;
1224 } else {
1225 phead = get_list_head(pfree_queue);
1226
1227 plist = phead->next;
1228
1229 pxmitbuf = container_of(plist, struct xmit_buf, list);
1230
1231 list_del_init(&(pxmitbuf->list));
1232 }
1233
1234 if (pxmitbuf != NULL) {
1235 pxmitpriv->free_xmit_extbuf_cnt--;
1236
1237 pxmitbuf->priv_data = NULL;
1238 /* pxmitbuf->ext_tag = true; */
1239
1240 if (pxmitbuf->sctx) {
1241 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1242 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1243 }
1244 }
1245
1246 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1247
1248
1249 return pxmitbuf;
1250 }
1251
rtw_free_xmitbuf_ext(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1252 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1253 {
1254 unsigned long irql;
1255 struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1256
1257
1258 if (pxmitbuf == NULL)
1259 return _FAIL;
1260
1261 spin_lock_irqsave(&pfree_queue->lock, irql);
1262
1263 list_del_init(&pxmitbuf->list);
1264
1265 list_add_tail(&(pxmitbuf->list), get_list_head(pfree_queue));
1266 pxmitpriv->free_xmit_extbuf_cnt++;
1267
1268 spin_unlock_irqrestore(&pfree_queue->lock, irql);
1269
1270
1271 return _SUCCESS;
1272 }
1273
rtw_alloc_xmitbuf(struct xmit_priv * pxmitpriv)1274 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
1275 {
1276 unsigned long irql;
1277 struct xmit_buf *pxmitbuf = NULL;
1278 struct list_head *plist, *phead;
1279 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1280
1281
1282 /* DBG_88E("+rtw_alloc_xmitbuf\n"); */
1283
1284 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1285
1286 if (list_empty(&pfree_xmitbuf_queue->queue)) {
1287 pxmitbuf = NULL;
1288 } else {
1289 phead = get_list_head(pfree_xmitbuf_queue);
1290
1291 plist = phead->next;
1292
1293 pxmitbuf = container_of(plist, struct xmit_buf, list);
1294
1295 list_del_init(&(pxmitbuf->list));
1296 }
1297
1298 if (pxmitbuf != NULL) {
1299 pxmitpriv->free_xmitbuf_cnt--;
1300 pxmitbuf->priv_data = NULL;
1301 if (pxmitbuf->sctx) {
1302 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1303 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1304 }
1305 }
1306 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1307
1308
1309 return pxmitbuf;
1310 }
1311
rtw_free_xmitbuf(struct xmit_priv * pxmitpriv,struct xmit_buf * pxmitbuf)1312 s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1313 {
1314 unsigned long irql;
1315 struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1316
1317 if (pxmitbuf == NULL)
1318 return _FAIL;
1319
1320 if (pxmitbuf->sctx) {
1321 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1322 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_FREE);
1323 }
1324
1325 if (pxmitbuf->ext_tag) {
1326 rtw_free_xmitbuf_ext(pxmitpriv, pxmitbuf);
1327 } else {
1328 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1329
1330 list_del_init(&pxmitbuf->list);
1331
1332 list_add_tail(&(pxmitbuf->list), get_list_head(pfree_xmitbuf_queue));
1333
1334 pxmitpriv->free_xmitbuf_cnt++;
1335 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1336 }
1337
1338
1339 return _SUCCESS;
1340 }
1341
1342 /*
1343 Calling context:
1344 1. OS_TXENTRY
1345 2. RXENTRY (rx_thread or RX_ISR/RX_CallBack)
1346
1347 If we turn on USE_RXTHREAD, then, no need for critical section.
1348 Otherwise, we must use _enter/_exit critical to protect free_xmit_queue...
1349
1350 Must be very very cautious...
1351
1352 */
1353
rtw_alloc_xmitframe(struct xmit_priv * pxmitpriv)1354 struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)/* _queue *pfree_xmit_queue) */
1355 {
1356 /*
1357 Please remember to use all the osdep_service api,
1358 and lock/unlock or _enter/_exit critical to protect
1359 pfree_xmit_queue
1360 */
1361
1362 struct xmit_frame *pxframe = NULL;
1363 struct list_head *plist, *phead;
1364 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1365
1366
1367 spin_lock_bh(&pfree_xmit_queue->lock);
1368
1369 if (list_empty(&pfree_xmit_queue->queue)) {
1370 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe:%d\n", pxmitpriv->free_xmitframe_cnt));
1371 pxframe = NULL;
1372 } else {
1373 phead = get_list_head(pfree_xmit_queue);
1374
1375 plist = phead->next;
1376
1377 pxframe = container_of(plist, struct xmit_frame, list);
1378
1379 list_del_init(&(pxframe->list));
1380 }
1381
1382 if (pxframe != NULL) { /* default value setting */
1383 pxmitpriv->free_xmitframe_cnt--;
1384
1385 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe():free_xmitframe_cnt=%d\n", pxmitpriv->free_xmitframe_cnt));
1386
1387 pxframe->buf_addr = NULL;
1388 pxframe->pxmitbuf = NULL;
1389
1390 memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib));
1391 /* pxframe->attrib.psta = NULL; */
1392
1393 pxframe->frame_tag = DATA_FRAMETAG;
1394
1395 pxframe->pkt = NULL;
1396 pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */
1397
1398 pxframe->agg_num = 1;
1399 pxframe->ack_report = 0;
1400 }
1401
1402 spin_unlock_bh(&pfree_xmit_queue->lock);
1403
1404
1405 return pxframe;
1406 }
1407
rtw_free_xmitframe(struct xmit_priv * pxmitpriv,struct xmit_frame * pxmitframe)1408 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
1409 {
1410 struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1411 struct adapter *padapter = pxmitpriv->adapter;
1412 struct sk_buff *pndis_pkt = NULL;
1413
1414
1415 if (pxmitframe == NULL) {
1416 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====== rtw_free_xmitframe():pxmitframe == NULL!!!!!!!!!!\n"));
1417 goto exit;
1418 }
1419
1420 spin_lock_bh(&pfree_xmit_queue->lock);
1421
1422 list_del_init(&pxmitframe->list);
1423
1424 if (pxmitframe->pkt) {
1425 pndis_pkt = pxmitframe->pkt;
1426 pxmitframe->pkt = NULL;
1427 }
1428
1429 list_add_tail(&pxmitframe->list, get_list_head(pfree_xmit_queue));
1430
1431 pxmitpriv->free_xmitframe_cnt++;
1432 RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe():free_xmitframe_cnt=%d\n", pxmitpriv->free_xmitframe_cnt));
1433
1434 spin_unlock_bh(&pfree_xmit_queue->lock);
1435
1436 if (pndis_pkt)
1437 rtw_os_pkt_complete(padapter, pndis_pkt);
1438
1439 exit:
1440
1441
1442 return _SUCCESS;
1443 }
1444
rtw_free_xmitframe_queue(struct xmit_priv * pxmitpriv,struct __queue * pframequeue)1445 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
1446 {
1447 struct list_head *plist, *phead;
1448 struct xmit_frame *pxmitframe;
1449
1450
1451 spin_lock_bh(&(pframequeue->lock));
1452
1453 phead = get_list_head(pframequeue);
1454 plist = phead->next;
1455
1456 while (phead != plist) {
1457 pxmitframe = container_of(plist, struct xmit_frame, list);
1458
1459 plist = plist->next;
1460
1461 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1462 }
1463 spin_unlock_bh(&(pframequeue->lock));
1464
1465 }
1466
rtw_xmitframe_enqueue(struct adapter * padapter,struct xmit_frame * pxmitframe)1467 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
1468 {
1469 if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL) {
1470 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
1471 ("rtw_xmitframe_enqueue: drop xmit pkt for classifier fail\n"));
1472 /* pxmitframe->pkt = NULL; */
1473 return _FAIL;
1474 }
1475
1476 return _SUCCESS;
1477 }
1478
dequeue_one_xmitframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit,struct tx_servq * ptxservq,struct __queue * pframe_queue)1479 static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit, struct tx_servq *ptxservq, struct __queue *pframe_queue)
1480 {
1481 struct list_head *xmitframe_plist, *xmitframe_phead;
1482 struct xmit_frame *pxmitframe = NULL;
1483
1484 xmitframe_phead = get_list_head(pframe_queue);
1485 xmitframe_plist = xmitframe_phead->next;
1486
1487 if (xmitframe_phead != xmitframe_plist) {
1488 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1489
1490 xmitframe_plist = xmitframe_plist->next;
1491
1492 list_del_init(&pxmitframe->list);
1493
1494 ptxservq->qcnt--;
1495 }
1496 return pxmitframe;
1497 }
1498
rtw_dequeue_xframe(struct xmit_priv * pxmitpriv,struct hw_xmit * phwxmit_i,int entry)1499 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i, int entry)
1500 {
1501 struct list_head *sta_plist, *sta_phead;
1502 struct hw_xmit *phwxmit;
1503 struct tx_servq *ptxservq = NULL;
1504 struct __queue *pframe_queue = NULL;
1505 struct xmit_frame *pxmitframe = NULL;
1506 struct adapter *padapter = pxmitpriv->adapter;
1507 struct registry_priv *pregpriv = &padapter->registrypriv;
1508 int i, inx[4];
1509
1510
1511 inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
1512
1513 if (pregpriv->wifi_spec == 1) {
1514 int j;
1515
1516 for (j = 0; j < 4; j++)
1517 inx[j] = pxmitpriv->wmm_para_seq[j];
1518 }
1519
1520 spin_lock_bh(&pxmitpriv->lock);
1521
1522 for (i = 0; i < entry; i++) {
1523 phwxmit = phwxmit_i + inx[i];
1524
1525 sta_phead = get_list_head(phwxmit->sta_queue);
1526 sta_plist = sta_phead->next;
1527
1528 while (sta_phead != sta_plist) {
1529 ptxservq = container_of(sta_plist, struct tx_servq, tx_pending);
1530
1531 pframe_queue = &ptxservq->sta_pending;
1532
1533 pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue);
1534
1535 if (pxmitframe) {
1536 phwxmit->accnt--;
1537
1538 /* Remove sta node when there are no pending packets. */
1539 if (list_empty(&pframe_queue->queue)) /* must be done after get_next and before break */
1540 list_del_init(&ptxservq->tx_pending);
1541 goto exit;
1542 }
1543
1544 sta_plist = sta_plist->next;
1545 }
1546 }
1547 exit:
1548 spin_unlock_bh(&pxmitpriv->lock);
1549 return pxmitframe;
1550 }
1551
rtw_get_sta_pending(struct adapter * padapter,struct sta_info * psta,int up,u8 * ac)1552 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *psta, int up, u8 *ac)
1553 {
1554 struct tx_servq *ptxservq;
1555
1556 switch (up) {
1557 case 1:
1558 case 2:
1559 ptxservq = &(psta->sta_xmitpriv.bk_q);
1560 *(ac) = 3;
1561 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BK\n"));
1562 break;
1563 case 4:
1564 case 5:
1565 ptxservq = &(psta->sta_xmitpriv.vi_q);
1566 *(ac) = 1;
1567 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VI\n"));
1568 break;
1569 case 6:
1570 case 7:
1571 ptxservq = &(psta->sta_xmitpriv.vo_q);
1572 *(ac) = 0;
1573 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VO\n"));
1574 break;
1575 case 0:
1576 case 3:
1577 default:
1578 ptxservq = &(psta->sta_xmitpriv.be_q);
1579 *(ac) = 2;
1580 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BE\n"));
1581 break;
1582 }
1583
1584
1585 return ptxservq;
1586 }
1587
1588 /*
1589 * Will enqueue pxmitframe to the proper queue,
1590 * and indicate it to xx_pending list.....
1591 */
rtw_xmit_classifier(struct adapter * padapter,struct xmit_frame * pxmitframe)1592 s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
1593 {
1594 u8 ac_index;
1595 struct sta_info *psta;
1596 struct tx_servq *ptxservq;
1597 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1598 struct sta_priv *pstapriv = &padapter->stapriv;
1599 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1600 int res = _SUCCESS;
1601
1602
1603 if (pattrib->psta) {
1604 psta = pattrib->psta;
1605 } else {
1606 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1607 }
1608
1609 if (psta == NULL) {
1610 res = _FAIL;
1611 DBG_88E("rtw_xmit_classifier: psta == NULL\n");
1612 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmit_classifier: psta == NULL\n"));
1613 goto exit;
1614 }
1615
1616 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1617
1618 if (list_empty(&ptxservq->tx_pending))
1619 list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
1620
1621 list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
1622 ptxservq->qcnt++;
1623 phwxmits[ac_index].accnt++;
1624 exit:
1625
1626
1627 return res;
1628 }
1629
rtw_alloc_hwxmits(struct adapter * padapter)1630 void rtw_alloc_hwxmits(struct adapter *padapter)
1631 {
1632 struct hw_xmit *hwxmits;
1633 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1634
1635 pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
1636
1637 pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry,
1638 sizeof(struct hw_xmit), GFP_KERNEL);
1639
1640 hwxmits = pxmitpriv->hwxmits;
1641
1642 hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
1643 hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
1644 hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
1645 hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1646 }
1647
rtw_free_hwxmits(struct adapter * padapter)1648 void rtw_free_hwxmits(struct adapter *padapter)
1649 {
1650 struct hw_xmit *hwxmits;
1651 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1652
1653 hwxmits = pxmitpriv->hwxmits;
1654 kfree(hwxmits);
1655 }
1656
rtw_init_hwxmits(struct hw_xmit * phwxmit,int entry)1657 void rtw_init_hwxmits(struct hw_xmit *phwxmit, int entry)
1658 {
1659 int i;
1660 for (i = 0; i < entry; i++, phwxmit++)
1661 phwxmit->accnt = 0;
1662 }
1663
rtw_get_ff_hwaddr(struct xmit_frame * pxmitframe)1664 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
1665 {
1666 u32 addr;
1667 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1668
1669 switch (pattrib->qsel) {
1670 case 0:
1671 case 3:
1672 addr = BE_QUEUE_INX;
1673 break;
1674 case 1:
1675 case 2:
1676 addr = BK_QUEUE_INX;
1677 break;
1678 case 4:
1679 case 5:
1680 addr = VI_QUEUE_INX;
1681 break;
1682 case 6:
1683 case 7:
1684 addr = VO_QUEUE_INX;
1685 break;
1686 case 0x10:
1687 addr = BCN_QUEUE_INX;
1688 break;
1689 case 0x11:/* BC/MC in PS (HIQ) */
1690 addr = HIGH_QUEUE_INX;
1691 break;
1692 case 0x12:
1693 default:
1694 addr = MGT_QUEUE_INX;
1695 break;
1696 }
1697
1698 return addr;
1699 }
1700
do_queue_select(struct adapter * padapter,struct pkt_attrib * pattrib)1701 static void do_queue_select(struct adapter *padapter, struct pkt_attrib *pattrib)
1702 {
1703 u8 qsel;
1704
1705 qsel = pattrib->priority;
1706 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("### do_queue_select priority=%d , qsel = %d\n", pattrib->priority , qsel));
1707
1708 pattrib->qsel = qsel;
1709 }
1710
1711 /*
1712 * The main transmit(tx) entry
1713 *
1714 * Return
1715 * 1 enqueue
1716 * 0 success, hardware will handle this xmit frame(packet)
1717 * <0 fail
1718 */
rtw_xmit(struct adapter * padapter,struct sk_buff ** ppkt)1719 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **ppkt)
1720 {
1721 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1722 struct xmit_frame *pxmitframe = NULL;
1723 s32 res;
1724
1725 pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
1726 if (pxmitframe == NULL) {
1727 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("rtw_xmit: no more pxmitframe\n"));
1728 DBG_88E("DBG_TX_DROP_FRAME %s no more pxmitframe\n", __func__);
1729 return -1;
1730 }
1731
1732 res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
1733
1734 if (res == _FAIL) {
1735 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("rtw_xmit: update attrib fail\n"));
1736 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1737 return -1;
1738 }
1739 pxmitframe->pkt = *ppkt;
1740
1741 rtw_led_control(padapter, LED_CTL_TX);
1742
1743 do_queue_select(padapter, &pxmitframe->attrib);
1744
1745 #ifdef CONFIG_88EU_AP_MODE
1746 spin_lock_bh(&pxmitpriv->lock);
1747 if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe)) {
1748 spin_unlock_bh(&pxmitpriv->lock);
1749 return 1;
1750 }
1751 spin_unlock_bh(&pxmitpriv->lock);
1752 #endif
1753
1754 if (rtw_hal_xmit(padapter, pxmitframe) == false)
1755 return 1;
1756
1757 return 0;
1758 }
1759
1760 #if defined(CONFIG_88EU_AP_MODE)
1761
xmitframe_enqueue_for_sleeping_sta(struct adapter * padapter,struct xmit_frame * pxmitframe)1762 int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
1763 {
1764 int ret = false;
1765 struct sta_info *psta = NULL;
1766 struct sta_priv *pstapriv = &padapter->stapriv;
1767 struct pkt_attrib *pattrib = &pxmitframe->attrib;
1768 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1769 int bmcst = IS_MCAST(pattrib->ra);
1770
1771 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == false)
1772 return ret;
1773
1774 if (pattrib->psta)
1775 psta = pattrib->psta;
1776 else
1777 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1778
1779 if (psta == NULL)
1780 return ret;
1781
1782 if (pattrib->triggered == 1) {
1783 if (bmcst)
1784 pattrib->qsel = 0x11;/* HIQ */
1785 return ret;
1786 }
1787
1788 if (bmcst) {
1789 spin_lock_bh(&psta->sleep_q.lock);
1790
1791 if (pstapriv->sta_dz_bitmap) {/* if any one sta is in ps mode */
1792 list_del_init(&pxmitframe->list);
1793
1794 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1795
1796 psta->sleepq_len++;
1797
1798 pstapriv->tim_bitmap |= BIT(0);/* */
1799 pstapriv->sta_dz_bitmap |= BIT(0);
1800
1801 update_beacon(padapter, _TIM_IE_, NULL, false);/* tx bc/mc packets after update bcn */
1802
1803 ret = true;
1804 }
1805
1806 spin_unlock_bh(&psta->sleep_q.lock);
1807
1808 return ret;
1809 }
1810
1811 spin_lock_bh(&psta->sleep_q.lock);
1812
1813 if (psta->state&WIFI_SLEEP_STATE) {
1814 u8 wmmps_ac = 0;
1815
1816 if (pstapriv->sta_dz_bitmap&BIT(psta->aid)) {
1817 list_del_init(&pxmitframe->list);
1818
1819 list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1820
1821 psta->sleepq_len++;
1822
1823 switch (pattrib->priority) {
1824 case 1:
1825 case 2:
1826 wmmps_ac = psta->uapsd_bk&BIT(0);
1827 break;
1828 case 4:
1829 case 5:
1830 wmmps_ac = psta->uapsd_vi&BIT(0);
1831 break;
1832 case 6:
1833 case 7:
1834 wmmps_ac = psta->uapsd_vo&BIT(0);
1835 break;
1836 case 0:
1837 case 3:
1838 default:
1839 wmmps_ac = psta->uapsd_be&BIT(0);
1840 break;
1841 }
1842
1843 if (wmmps_ac)
1844 psta->sleepq_ac_len++;
1845
1846 if (((psta->has_legacy_ac) && (!wmmps_ac)) ||
1847 ((!psta->has_legacy_ac) && (wmmps_ac))) {
1848 pstapriv->tim_bitmap |= BIT(psta->aid);
1849
1850 if (psta->sleepq_len == 1) {
1851 /* update BCN for TIM IE */
1852 update_beacon(padapter, _TIM_IE_, NULL, false);
1853 }
1854 }
1855 ret = true;
1856 }
1857 }
1858
1859 spin_unlock_bh(&psta->sleep_q.lock);
1860
1861 return ret;
1862 }
1863
dequeue_xmitframes_to_sleeping_queue(struct adapter * padapter,struct sta_info * psta,struct __queue * pframequeue)1864 static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
1865 {
1866 struct list_head *plist, *phead;
1867 u8 ac_index;
1868 struct tx_servq *ptxservq;
1869 struct pkt_attrib *pattrib;
1870 struct xmit_frame *pxmitframe;
1871 struct hw_xmit *phwxmits = padapter->xmitpriv.hwxmits;
1872
1873 phead = get_list_head(pframequeue);
1874 plist = phead->next;
1875
1876 while (phead != plist) {
1877 pxmitframe = container_of(plist, struct xmit_frame, list);
1878
1879 plist = plist->next;
1880
1881 xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
1882
1883 pattrib = &pxmitframe->attrib;
1884
1885 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1886
1887 ptxservq->qcnt--;
1888 phwxmits[ac_index].accnt--;
1889 }
1890 }
1891
stop_sta_xmit(struct adapter * padapter,struct sta_info * psta)1892 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
1893 {
1894 struct sta_info *psta_bmc;
1895 struct sta_xmit_priv *pstaxmitpriv;
1896 struct sta_priv *pstapriv = &padapter->stapriv;
1897 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1898
1899 pstaxmitpriv = &psta->sta_xmitpriv;
1900
1901 /* for BC/MC Frames */
1902 psta_bmc = rtw_get_bcmc_stainfo(padapter);
1903
1904 spin_lock_bh(&pxmitpriv->lock);
1905
1906 psta->state |= WIFI_SLEEP_STATE;
1907
1908 pstapriv->sta_dz_bitmap |= BIT(psta->aid);
1909
1910 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
1911 list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
1912
1913 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
1914 list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
1915
1916 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
1917 list_del_init(&(pstaxmitpriv->be_q.tx_pending));
1918
1919 dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
1920 list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
1921
1922 /* for BC/MC Frames */
1923 pstaxmitpriv = &psta_bmc->sta_xmitpriv;
1924 dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
1925 list_del_init(&(pstaxmitpriv->be_q.tx_pending));
1926
1927 spin_unlock_bh(&pxmitpriv->lock);
1928 }
1929
wakeup_sta_to_xmit(struct adapter * padapter,struct sta_info * psta)1930 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
1931 {
1932 u8 update_mask = 0, wmmps_ac = 0;
1933 struct sta_info *psta_bmc;
1934 struct list_head *xmitframe_plist, *xmitframe_phead;
1935 struct xmit_frame *pxmitframe = NULL;
1936 struct sta_priv *pstapriv = &padapter->stapriv;
1937
1938 spin_lock_bh(&psta->sleep_q.lock);
1939
1940 xmitframe_phead = get_list_head(&psta->sleep_q);
1941 xmitframe_plist = xmitframe_phead->next;
1942
1943 while (xmitframe_phead != xmitframe_plist) {
1944 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1945
1946 xmitframe_plist = xmitframe_plist->next;
1947
1948 list_del_init(&pxmitframe->list);
1949
1950 switch (pxmitframe->attrib.priority) {
1951 case 1:
1952 case 2:
1953 wmmps_ac = psta->uapsd_bk&BIT(1);
1954 break;
1955 case 4:
1956 case 5:
1957 wmmps_ac = psta->uapsd_vi&BIT(1);
1958 break;
1959 case 6:
1960 case 7:
1961 wmmps_ac = psta->uapsd_vo&BIT(1);
1962 break;
1963 case 0:
1964 case 3:
1965 default:
1966 wmmps_ac = psta->uapsd_be&BIT(1);
1967 break;
1968 }
1969
1970 psta->sleepq_len--;
1971 if (psta->sleepq_len > 0)
1972 pxmitframe->attrib.mdata = 1;
1973 else
1974 pxmitframe->attrib.mdata = 0;
1975
1976 if (wmmps_ac) {
1977 psta->sleepq_ac_len--;
1978 if (psta->sleepq_ac_len > 0) {
1979 pxmitframe->attrib.mdata = 1;
1980 pxmitframe->attrib.eosp = 0;
1981 } else {
1982 pxmitframe->attrib.mdata = 0;
1983 pxmitframe->attrib.eosp = 1;
1984 }
1985 }
1986
1987 pxmitframe->attrib.triggered = 1;
1988
1989 spin_unlock_bh(&psta->sleep_q.lock);
1990 if (rtw_hal_xmit(padapter, pxmitframe))
1991 rtw_os_xmit_complete(padapter, pxmitframe);
1992 spin_lock_bh(&psta->sleep_q.lock);
1993 }
1994
1995 if (psta->sleepq_len == 0) {
1996 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1997
1998 update_mask = BIT(0);
1999
2000 if (psta->state&WIFI_SLEEP_STATE)
2001 psta->state ^= WIFI_SLEEP_STATE;
2002
2003 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
2004 psta->expire_to = pstapriv->expire_to;
2005 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
2006 }
2007
2008 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
2009 }
2010
2011 spin_unlock_bh(&psta->sleep_q.lock);
2012
2013 /* for BC/MC Frames */
2014 psta_bmc = rtw_get_bcmc_stainfo(padapter);
2015 if (!psta_bmc)
2016 return;
2017
2018 if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) { /* no any sta in ps mode */
2019 spin_lock_bh(&psta_bmc->sleep_q.lock);
2020
2021 xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
2022 xmitframe_plist = xmitframe_phead->next;
2023
2024 while (xmitframe_phead != xmitframe_plist) {
2025 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
2026
2027 xmitframe_plist = xmitframe_plist->next;
2028
2029 list_del_init(&pxmitframe->list);
2030
2031 psta_bmc->sleepq_len--;
2032 if (psta_bmc->sleepq_len > 0)
2033 pxmitframe->attrib.mdata = 1;
2034 else
2035 pxmitframe->attrib.mdata = 0;
2036
2037 pxmitframe->attrib.triggered = 1;
2038
2039 spin_unlock_bh(&psta_bmc->sleep_q.lock);
2040 if (rtw_hal_xmit(padapter, pxmitframe))
2041 rtw_os_xmit_complete(padapter, pxmitframe);
2042 spin_lock_bh(&psta_bmc->sleep_q.lock);
2043 }
2044
2045 if (psta_bmc->sleepq_len == 0) {
2046 pstapriv->tim_bitmap &= ~BIT(0);
2047 pstapriv->sta_dz_bitmap &= ~BIT(0);
2048
2049 update_mask |= BIT(1);
2050 }
2051
2052 spin_unlock_bh(&psta_bmc->sleep_q.lock);
2053 }
2054
2055 if (update_mask)
2056 update_beacon(padapter, _TIM_IE_, NULL, false);
2057 }
2058
xmit_delivery_enabled_frames(struct adapter * padapter,struct sta_info * psta)2059 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
2060 {
2061 u8 wmmps_ac = 0;
2062 struct list_head *xmitframe_plist, *xmitframe_phead;
2063 struct xmit_frame *pxmitframe = NULL;
2064 struct sta_priv *pstapriv = &padapter->stapriv;
2065
2066 spin_lock_bh(&psta->sleep_q.lock);
2067
2068 xmitframe_phead = get_list_head(&psta->sleep_q);
2069 xmitframe_plist = xmitframe_phead->next;
2070
2071 while (xmitframe_phead != xmitframe_plist) {
2072 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
2073
2074 xmitframe_plist = xmitframe_plist->next;
2075
2076 switch (pxmitframe->attrib.priority) {
2077 case 1:
2078 case 2:
2079 wmmps_ac = psta->uapsd_bk&BIT(1);
2080 break;
2081 case 4:
2082 case 5:
2083 wmmps_ac = psta->uapsd_vi&BIT(1);
2084 break;
2085 case 6:
2086 case 7:
2087 wmmps_ac = psta->uapsd_vo&BIT(1);
2088 break;
2089 case 0:
2090 case 3:
2091 default:
2092 wmmps_ac = psta->uapsd_be&BIT(1);
2093 break;
2094 }
2095
2096 if (!wmmps_ac)
2097 continue;
2098
2099 list_del_init(&pxmitframe->list);
2100
2101 psta->sleepq_len--;
2102 psta->sleepq_ac_len--;
2103
2104 if (psta->sleepq_ac_len > 0) {
2105 pxmitframe->attrib.mdata = 1;
2106 pxmitframe->attrib.eosp = 0;
2107 } else {
2108 pxmitframe->attrib.mdata = 0;
2109 pxmitframe->attrib.eosp = 1;
2110 }
2111
2112 pxmitframe->attrib.triggered = 1;
2113
2114 if (rtw_hal_xmit(padapter, pxmitframe) == true)
2115 rtw_os_xmit_complete(padapter, pxmitframe);
2116
2117 if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
2118 pstapriv->tim_bitmap &= ~BIT(psta->aid);
2119
2120 /* update BCN for TIM IE */
2121 update_beacon(padapter, _TIM_IE_, NULL, false);
2122 }
2123 }
2124
2125 spin_unlock_bh(&psta->sleep_q.lock);
2126 }
2127
2128 #endif
2129
rtw_sctx_init(struct submit_ctx * sctx,int timeout_ms)2130 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
2131 {
2132 sctx->timeout_ms = timeout_ms;
2133 sctx->submit_time = jiffies;
2134 init_completion(&sctx->done);
2135 sctx->status = RTW_SCTX_SUBMITTED;
2136 }
2137
rtw_sctx_wait(struct submit_ctx * sctx)2138 int rtw_sctx_wait(struct submit_ctx *sctx)
2139 {
2140 int ret = _FAIL;
2141 unsigned long expire;
2142 int status = 0;
2143
2144 expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
2145 if (!wait_for_completion_timeout(&sctx->done, expire)) {
2146 /* timeout, do something?? */
2147 status = RTW_SCTX_DONE_TIMEOUT;
2148 DBG_88E("%s timeout\n", __func__);
2149 } else {
2150 status = sctx->status;
2151 }
2152
2153 if (status == RTW_SCTX_DONE_SUCCESS)
2154 ret = _SUCCESS;
2155
2156 return ret;
2157 }
2158
rtw_sctx_chk_waring_status(int status)2159 static bool rtw_sctx_chk_waring_status(int status)
2160 {
2161 switch (status) {
2162 case RTW_SCTX_DONE_UNKNOWN:
2163 case RTW_SCTX_DONE_BUF_ALLOC:
2164 case RTW_SCTX_DONE_BUF_FREE:
2165
2166 case RTW_SCTX_DONE_DRV_STOP:
2167 case RTW_SCTX_DONE_DEV_REMOVE:
2168 return true;
2169 default:
2170 return false;
2171 }
2172 }
2173
rtw_sctx_done_err(struct submit_ctx ** sctx,int status)2174 void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
2175 {
2176 if (*sctx) {
2177 if (rtw_sctx_chk_waring_status(status))
2178 DBG_88E("%s status:%d\n", __func__, status);
2179 (*sctx)->status = status;
2180 complete(&((*sctx)->done));
2181 *sctx = NULL;
2182 }
2183 }
2184
rtw_sctx_done(struct submit_ctx ** sctx)2185 void rtw_sctx_done(struct submit_ctx **sctx)
2186 {
2187 rtw_sctx_done_err(sctx, RTW_SCTX_DONE_SUCCESS);
2188 }
2189
rtw_ack_tx_wait(struct xmit_priv * pxmitpriv,u32 timeout_ms)2190 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
2191 {
2192 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2193
2194 pack_tx_ops->submit_time = jiffies;
2195 pack_tx_ops->timeout_ms = timeout_ms;
2196 pack_tx_ops->status = RTW_SCTX_SUBMITTED;
2197
2198 return rtw_sctx_wait(pack_tx_ops);
2199 }
2200
rtw_ack_tx_done(struct xmit_priv * pxmitpriv,int status)2201 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status)
2202 {
2203 struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2204
2205 if (pxmitpriv->ack_tx)
2206 rtw_sctx_done_err(&pack_tx_ops, status);
2207 else
2208 DBG_88E("%s ack_tx not set\n", __func__);
2209 }
2210