drivers/staging/rtl8188eu/core/rtw_xmit.c

   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  ******************************************************************************/
  15 #define _RTW_XMIT_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <mon.h>
  20 #include <wifi.h>
  21 #include <osdep_intf.h>
  22 #include <linux/vmalloc.h>
  23
  24 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
  25 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
  26
  27 static void _init_txservq(struct tx_servq *ptxservq)
  28 {
  29         INIT_LIST_HEAD(&ptxservq->tx_pending);
  30         _rtw_init_queue(&ptxservq->sta_pending);
  31         ptxservq->qcnt = 0;
  32 }
  33
  34 void    _rtw_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv)
  35 {
  36         memset((unsigned char *)psta_xmitpriv, 0, sizeof(struct sta_xmit_priv));
  37         spin_lock_init(&psta_xmitpriv->lock);
  38         _init_txservq(&psta_xmitpriv->be_q);
  39         _init_txservq(&psta_xmitpriv->bk_q);
  40         _init_txservq(&psta_xmitpriv->vi_q);
  41         _init_txservq(&psta_xmitpriv->vo_q);
  42         INIT_LIST_HEAD(&psta_xmitpriv->legacy_dz);
  43         INIT_LIST_HEAD(&psta_xmitpriv->apsd);
  44
  45 }
  46
  47 s32     _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
  48 {
  49         int i;
  50         struct xmit_buf *pxmitbuf;
  51         struct xmit_frame *pxframe;
  52         int     res = _SUCCESS;
  53         u32 max_xmit_extbuf_size = MAX_XMIT_EXTBUF_SZ;
  54         u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
  55
  56
  57         /*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
  58
  59         spin_lock_init(&pxmitpriv->lock);
  60
  61         /*
  62         Please insert all the queue initializaiton using _rtw_init_queue below
  63         */
  64
  65         pxmitpriv->adapter = padapter;
  66
  67         _rtw_init_queue(&pxmitpriv->be_pending);
  68         _rtw_init_queue(&pxmitpriv->bk_pending);
  69         _rtw_init_queue(&pxmitpriv->vi_pending);
  70         _rtw_init_queue(&pxmitpriv->vo_pending);
  71         _rtw_init_queue(&pxmitpriv->bm_pending);
  72
  73         _rtw_init_queue(&pxmitpriv->free_xmit_queue);
  74
  75         /*
  76         Please allocate memory with the sz = (struct xmit_frame) * NR_XMITFRAME,
  77         and initialize free_xmit_frame below.
  78         Please also apply  free_txobj to link_up all the xmit_frames...
  79         */
  80
  81         pxmitpriv->pallocated_frame_buf = vzalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4);
  82
  83         if (pxmitpriv->pallocated_frame_buf  == NULL) {
  84                 pxmitpriv->pxmit_frame_buf = NULL;
  85                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_frame fail!\n"));
  86                 res = _FAIL;
  87                 goto exit;
  88         }
  89         pxmitpriv->pxmit_frame_buf = PTR_ALIGN(pxmitpriv->pallocated_frame_buf, 4);
  90         /* pxmitpriv->pxmit_frame_buf = pxmitpriv->pallocated_frame_buf + 4 - */
  91         /*                                              ((size_t) (pxmitpriv->pallocated_frame_buf) &3); */
  92
  93         pxframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
  94
  95         for (i = 0; i < NR_XMITFRAME; i++) {
  96                 INIT_LIST_HEAD(&(pxframe->list));
  97
  98                 pxframe->padapter = padapter;
  99                 pxframe->frame_tag = NULL_FRAMETAG;
 100
 101                 pxframe->pkt = NULL;
 102
 103                 pxframe->buf_addr = NULL;
 104                 pxframe->pxmitbuf = NULL;
 105
 106                 list_add_tail(&(pxframe->list), &(pxmitpriv->free_xmit_queue.queue));
 107
 108                 pxframe++;
 109         }
 110
 111         pxmitpriv->free_xmitframe_cnt = NR_XMITFRAME;
 112
 113         pxmitpriv->frag_len = MAX_FRAG_THRESHOLD;
 114
 115         /* init xmit_buf */
 116         _rtw_init_queue(&pxmitpriv->free_xmitbuf_queue);
 117         _rtw_init_queue(&pxmitpriv->pending_xmitbuf_queue);
 118
 119         pxmitpriv->pallocated_xmitbuf = vzalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4);
 120
 121         if (pxmitpriv->pallocated_xmitbuf  == NULL) {
 122                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_buf fail!\n"));
 123                 res = _FAIL;
 124                 goto exit;
 125         }
 126
 127         pxmitpriv->pxmitbuf = PTR_ALIGN(pxmitpriv->pallocated_xmitbuf, 4);
 128         /* pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 - */
 129         /*                                              ((size_t) (pxmitpriv->pallocated_xmitbuf) &3); */
 130
 131         pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
 132
 133         for (i = 0; i < NR_XMITBUFF; i++) {
 134                 INIT_LIST_HEAD(&pxmitbuf->list);
 135
 136                 pxmitbuf->priv_data = NULL;
 137                 pxmitbuf->padapter = padapter;
 138                 pxmitbuf->ext_tag = false;
 139
 140                 /* Tx buf allocation may fail sometimes, so sleep and retry. */
 141                 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
 142                 if (res == _FAIL) {
 143                         msleep(10);
 144                         res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
 145                         if (res == _FAIL)
 146                                 goto exit;
 147                 }
 148
 149                 pxmitbuf->flags = XMIT_VO_QUEUE;
 150
 151                 list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmitbuf_queue.queue));
 152                 pxmitbuf++;
 153         }
 154
 155         pxmitpriv->free_xmitbuf_cnt = NR_XMITBUFF;
 156
 157         /*  Init xmit extension buff */
 158         _rtw_init_queue(&pxmitpriv->free_xmit_extbuf_queue);
 159
 160         pxmitpriv->pallocated_xmit_extbuf = vzalloc(num_xmit_extbuf * sizeof(struct xmit_buf) + 4);
 161
 162         if (pxmitpriv->pallocated_xmit_extbuf  == NULL) {
 163                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("alloc xmit_extbuf fail!\n"));
 164                 res = _FAIL;
 165                 goto exit;
 166         }
 167
 168         pxmitpriv->pxmit_extbuf = PTR_ALIGN(pxmitpriv->pallocated_xmit_extbuf, 4);
 169
 170         pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
 171
 172         for (i = 0; i < num_xmit_extbuf; i++) {
 173                 INIT_LIST_HEAD(&pxmitbuf->list);
 174
 175                 pxmitbuf->priv_data = NULL;
 176                 pxmitbuf->padapter = padapter;
 177                 pxmitbuf->ext_tag = true;
 178
 179                 res = rtw_os_xmit_resource_alloc(padapter, pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ);
 180                 if (res == _FAIL) {
 181                         res = _FAIL;
 182                         goto exit;
 183                 }
 184
 185                 list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmit_extbuf_queue.queue));
 186                 pxmitbuf++;
 187         }
 188
 189         pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
 190
 191         rtw_alloc_hwxmits(padapter);
 192         rtw_init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
 193
 194         for (i = 0; i < 4; i++)
 195                 pxmitpriv->wmm_para_seq[i] = i;
 196
 197         pxmitpriv->txirp_cnt = 1;
 198
 199         /* per AC pending irp */
 200         pxmitpriv->beq_cnt = 0;
 201         pxmitpriv->bkq_cnt = 0;
 202         pxmitpriv->viq_cnt = 0;
 203         pxmitpriv->voq_cnt = 0;
 204
 205         pxmitpriv->ack_tx = false;
 206         mutex_init(&pxmitpriv->ack_tx_mutex);
 207         rtw_sctx_init(&pxmitpriv->ack_tx_ops, 0);
 208
 209         rtw_hal_init_xmit_priv(padapter);
 210
 211 exit:
 212
 213
 214         return res;
 215 }
 216
 217 void _rtw_free_xmit_priv(struct xmit_priv *pxmitpriv)
 218 {
 219         int i;
 220         struct adapter *padapter = pxmitpriv->adapter;
 221         struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
 222         struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
 223         u32 max_xmit_extbuf_size = MAX_XMIT_EXTBUF_SZ;
 224         u32 num_xmit_extbuf = NR_XMIT_EXTBUFF;
 225
 226         if (pxmitpriv->pxmit_frame_buf == NULL)
 227                 return;
 228
 229         for (i = 0; i < NR_XMITFRAME; i++) {
 230                 rtw_os_xmit_complete(padapter, pxmitframe);
 231
 232                 pxmitframe++;
 233         }
 234
 235         for (i = 0; i < NR_XMITBUFF; i++) {
 236                 rtw_os_xmit_resource_free(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
 237                 pxmitbuf++;
 238         }
 239
 240         vfree(pxmitpriv->pallocated_frame_buf);
 241         vfree(pxmitpriv->pallocated_xmitbuf);
 242
 243         /*  free xmit extension buff */
 244         pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmit_extbuf;
 245         for (i = 0; i < num_xmit_extbuf; i++) {
 246                 rtw_os_xmit_resource_free(padapter, pxmitbuf, (max_xmit_extbuf_size + XMITBUF_ALIGN_SZ));
 247                 pxmitbuf++;
 248         }
 249
 250         if (pxmitpriv->pallocated_xmit_extbuf)
 251                 vfree(pxmitpriv->pallocated_xmit_extbuf);
 252
 253         rtw_free_hwxmits(padapter);
 254
 255         mutex_destroy(&pxmitpriv->ack_tx_mutex);
 256 }
 257
 258 static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *pxmitframe)
 259 {
 260         u32     sz;
 261         struct pkt_attrib       *pattrib = &pxmitframe->attrib;
 262         struct sta_info *psta = pattrib->psta;
 263         struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
 264         struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
 265
 266         if (pattrib->nr_frags != 1)
 267                 sz = padapter->xmitpriv.frag_len;
 268         else /* no frag */
 269                 sz = pattrib->last_txcmdsz;
 270
 271         /*  (1) RTS_Threshold is compared to the MPDU, not MSDU. */
 272         /*  (2) If there are more than one frag in  this MSDU, only the first frag uses protection frame. */
 273         /*              Other fragments are protected by previous fragment. */
 274         /*              So we only need to check the length of first fragment. */
 275         if (pmlmeext->cur_wireless_mode < WIRELESS_11_24N  || padapter->registrypriv.wifi_spec) {
 276                 if (sz > padapter->registrypriv.rts_thresh) {
 277                         pattrib->vcs_mode = RTS_CTS;
 278                 } else {
 279                         if (psta->rtsen)
 280                                 pattrib->vcs_mode = RTS_CTS;
 281                         else if (psta->cts2self)
 282                                 pattrib->vcs_mode = CTS_TO_SELF;
 283                         else
 284                                 pattrib->vcs_mode = NONE_VCS;
 285                 }
 286         } else {
 287                 while (true) {
 288                         /* IOT action */
 289                         if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_ATHEROS) && pattrib->ampdu_en &&
 290                             (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)) {
 291                                 pattrib->vcs_mode = CTS_TO_SELF;
 292                                 break;
 293                         }
 294
 295                         /* check ERP protection */
 296                         if (psta->rtsen || psta->cts2self) {
 297                                 if (psta->rtsen)
 298                                         pattrib->vcs_mode = RTS_CTS;
 299                                 else if (psta->cts2self)
 300                                         pattrib->vcs_mode = CTS_TO_SELF;
 301
 302                                 break;
 303                         }
 304
 305                         /* check HT op mode */
 306                         if (pattrib->ht_en) {
 307                                 u8 htopmode = pmlmeinfo->HT_protection;
 308                                 if ((pmlmeext->cur_bwmode && (htopmode == 2 || htopmode == 3)) ||
 309                                     (!pmlmeext->cur_bwmode && htopmode == 3)) {
 310                                         pattrib->vcs_mode = RTS_CTS;
 311                                         break;
 312                                 }
 313                         }
 314
 315                         /* check rts */
 316                         if (sz > padapter->registrypriv.rts_thresh) {
 317                                 pattrib->vcs_mode = RTS_CTS;
 318                                 break;
 319                         }
 320
 321                         /* to do list: check MIMO power save condition. */
 322
 323                         /* check AMPDU aggregation for TXOP */
 324                         if (pattrib->ampdu_en) {
 325                                 pattrib->vcs_mode = RTS_CTS;
 326                                 break;
 327                         }
 328
 329                         pattrib->vcs_mode = NONE_VCS;
 330                         break;
 331                 }
 332         }
 333 }
 334
 335 static void update_attrib_phy_info(struct pkt_attrib *pattrib, struct sta_info *psta)
 336 {
 337         /*if (psta->rtsen)
 338                 pattrib->vcs_mode = RTS_CTS;
 339         else if (psta->cts2self)
 340                 pattrib->vcs_mode = CTS_TO_SELF;
 341         else
 342                 pattrib->vcs_mode = NONE_VCS;*/
 343
 344         pattrib->mdata = 0;
 345         pattrib->eosp = 0;
 346         pattrib->triggered = 0;
 347
 348         /* qos_en, ht_en, init rate, , bw, ch_offset, sgi */
 349         pattrib->qos_en = psta->qos_option;
 350
 351         pattrib->raid = psta->raid;
 352         pattrib->ht_en = psta->htpriv.ht_option;
 353         pattrib->bwmode = psta->htpriv.bwmode;
 354         pattrib->ch_offset = psta->htpriv.ch_offset;
 355         pattrib->sgi = psta->htpriv.sgi;
 356         pattrib->ampdu_en = false;
 357         pattrib->retry_ctrl = false;
 358 }
 359
 360 u8      qos_acm(u8 acm_mask, u8 priority)
 361 {
 362         u8      change_priority = priority;
 363
 364         switch (priority) {
 365         case 0:
 366         case 3:
 367                 if (acm_mask & BIT(1))
 368                         change_priority = 1;
 369                 break;
 370         case 1:
 371         case 2:
 372                 break;
 373         case 4:
 374         case 5:
 375                 if (acm_mask & BIT(2))
 376                         change_priority = 0;
 377                 break;
 378         case 6:
 379         case 7:
 380                 if (acm_mask & BIT(3))
 381                         change_priority = 5;
 382                 break;
 383         default:
 384                 DBG_88E("qos_acm(): invalid pattrib->priority: %d!!!\n", priority);
 385                 break;
 386         }
 387
 388         return change_priority;
 389 }
 390
 391 static void set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
 392 {
 393         struct ethhdr etherhdr;
 394         struct iphdr ip_hdr;
 395         s32 user_prio = 0;
 396
 397         _rtw_open_pktfile(ppktfile->pkt, ppktfile);
 398         _rtw_pktfile_read(ppktfile, (unsigned char *)&etherhdr, ETH_HLEN);
 399
 400         /*  get user_prio from IP hdr */
 401         if (pattrib->ether_type == 0x0800) {
 402                 _rtw_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr));
 403 /*              user_prio = (ntohs(ip_hdr.tos) >> 5) & 0x3; */
 404                 user_prio = ip_hdr.tos >> 5;
 405         } else if (pattrib->ether_type == ETH_P_PAE) {
 406                 /*  "When priority processing of data frames is supported, */
 407                 /*  a STA's SME should send EAPOL-Key frames at the highest priority." */
 408                 user_prio = 7;
 409         }
 410
 411         pattrib->priority = user_prio;
 412         pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
 413         pattrib->subtype = WIFI_QOS_DATA_TYPE;
 414 }
 415
 416 static s32 update_attrib(struct adapter *padapter, struct sk_buff *pkt, struct pkt_attrib *pattrib)
 417 {
 418         struct pkt_file pktfile;
 419         struct sta_info *psta = NULL;
 420         struct ethhdr etherhdr;
 421
 422         int bmcast;
 423         struct sta_priv         *pstapriv = &padapter->stapriv;
 424         struct security_priv    *psecuritypriv = &padapter->securitypriv;
 425         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
 426         struct qos_priv         *pqospriv = &pmlmepriv->qospriv;
 427         int res = _SUCCESS;
 428
 429
 430         _rtw_open_pktfile(pkt, &pktfile);
 431         _rtw_pktfile_read(&pktfile, (u8 *)&etherhdr, ETH_HLEN);
 432
 433         pattrib->ether_type = ntohs(etherhdr.h_proto);
 434
 435         memcpy(pattrib->dst, &etherhdr.h_dest, ETH_ALEN);
 436         memcpy(pattrib->src, &etherhdr.h_source, ETH_ALEN);
 437
 438         pattrib->pctrl = 0;
 439
 440         if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
 441             check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
 442                 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
 443                 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
 444         } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
 445                 memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
 446                 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
 447         } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
 448                 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
 449                 memcpy(pattrib->ta, get_bssid(pmlmepriv), ETH_ALEN);
 450         }
 451
 452         pattrib->pktlen = pktfile.pkt_len;
 453
 454         if (pattrib->ether_type == ETH_P_IP) {
 455                 /*  The following is for DHCP and ARP packet, we use cck1M to tx these packets and let LPS awake some time */
 456                 /*  to prevent DHCP protocol fail */
 457                 u8 tmp[24];
 458                 _rtw_pktfile_read(&pktfile, &tmp[0], 24);
 459                 pattrib->dhcp_pkt = 0;
 460                 if (pktfile.pkt_len > 282) {/* MINIMUM_DHCP_PACKET_SIZE) { */
 461                         if (pattrib->ether_type == ETH_P_IP) {/*  IP header */
 462                                 if (((tmp[21] == 68) && (tmp[23] == 67)) ||
 463                                     ((tmp[21] == 67) && (tmp[23] == 68))) {
 464                                         /*  68 : UDP BOOTP client */
 465                                         /*  67 : UDP BOOTP server */
 466                                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====================== update_attrib: get DHCP Packet\n"));
 467                                         /*  Use low rate to send DHCP packet. */
 468                                         pattrib->dhcp_pkt = 1;
 469                                 }
 470                         }
 471                 }
 472         } else if (pattrib->ether_type == ETH_P_PAE) {
 473                 DBG_88E_LEVEL(_drv_info_, "send eapol packet\n");
 474         }
 475
 476         if ((pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
 477                 rtw_set_scan_deny(padapter, 3000);
 478
 479         /*  If EAPOL , ARP , OR DHCP packet, driver must be in active mode. */
 480         if ((pattrib->ether_type == ETH_P_ARP) || (pattrib->ether_type == ETH_P_PAE) || (pattrib->dhcp_pkt == 1))
 481                 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SPECIAL_PACKET, 1);
 482
 483         bmcast = IS_MCAST(pattrib->ra);
 484
 485         /*  get sta_info */
 486         if (bmcast) {
 487                 psta = rtw_get_bcmc_stainfo(padapter);
 488         } else {
 489                 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
 490                 if (psta == NULL) { /*  if we cannot get psta => drrp the pkt */
 491                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra: %pM\n", (pattrib->ra)));
 492                         res = _FAIL;
 493                         goto exit;
 494                 } else if ((check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) && (!(psta->state & _FW_LINKED))) {
 495                         res = _FAIL;
 496                         goto exit;
 497                 }
 498         }
 499
 500         if (psta) {
 501                 pattrib->mac_id = psta->mac_id;
 502                 /* DBG_88E("%s ==> mac_id(%d)\n", __func__, pattrib->mac_id); */
 503                 pattrib->psta = psta;
 504         } else {
 505                 /*  if we cannot get psta => drop the pkt */
 506                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("\nupdate_attrib => get sta_info fail, ra:%pM\n", (pattrib->ra)));
 507                 res = _FAIL;
 508                 goto exit;
 509         }
 510
 511         pattrib->ack_policy = 0;
 512
 513         pattrib->hdrlen = WLAN_HDR_A3_LEN;
 514         pattrib->subtype = WIFI_DATA_TYPE;
 515         pattrib->priority = 0;
 516
 517         if (check_fwstate(pmlmepriv, WIFI_AP_STATE|WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) {
 518                 if (psta->qos_option)
 519                         set_qos(&pktfile, pattrib);
 520         } else {
 521                 if (pqospriv->qos_option) {
 522                         set_qos(&pktfile, pattrib);
 523
 524                         if (pmlmepriv->acm_mask != 0)
 525                                 pattrib->priority = qos_acm(pmlmepriv->acm_mask, pattrib->priority);
 526                 }
 527         }
 528
 529         if (psta->ieee8021x_blocked) {
 530                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\n psta->ieee8021x_blocked == true\n"));
 531
 532                 pattrib->encrypt = 0;
 533
 534                 if ((pattrib->ether_type != ETH_P_PAE) && !check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
 535                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("\npsta->ieee8021x_blocked == true,  pattrib->ether_type(%.4x) != ETH_P_PAE\n", pattrib->ether_type));
 536                         res = _FAIL;
 537                         goto exit;
 538                 }
 539         } else {
 540                 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, bmcast);
 541
 542                 switch (psecuritypriv->dot11AuthAlgrthm) {
 543                 case dot11AuthAlgrthm_Open:
 544                 case dot11AuthAlgrthm_Shared:
 545                 case dot11AuthAlgrthm_Auto:
 546                         pattrib->key_idx = (u8)psecuritypriv->dot11PrivacyKeyIndex;
 547                         break;
 548                 case dot11AuthAlgrthm_8021X:
 549                         if (bmcast)
 550                                 pattrib->key_idx = (u8)psecuritypriv->dot118021XGrpKeyid;
 551                         else
 552                                 pattrib->key_idx = 0;
 553                         break;
 554                 default:
 555                         pattrib->key_idx = 0;
 556                         break;
 557                 }
 558         }
 559
 560         switch (pattrib->encrypt) {
 561         case _WEP40_:
 562         case _WEP104_:
 563                 pattrib->iv_len = 4;
 564                 pattrib->icv_len = 4;
 565                 break;
 566         case _TKIP_:
 567                 pattrib->iv_len = 8;
 568                 pattrib->icv_len = 4;
 569
 570                 if (padapter->securitypriv.busetkipkey == _FAIL) {
 571                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
 572                                  ("\npadapter->securitypriv.busetkipkey(%d) == _FAIL drop packet\n",
 573                                  padapter->securitypriv.busetkipkey));
 574                         res = _FAIL;
 575                         goto exit;
 576                 }
 577                 break;
 578         case _AES_:
 579                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("pattrib->encrypt=%d (_AES_)\n", pattrib->encrypt));
 580                 pattrib->iv_len = 8;
 581                 pattrib->icv_len = 8;
 582                 break;
 583         default:
 584                 pattrib->iv_len = 0;
 585                 pattrib->icv_len = 0;
 586                 break;
 587         }
 588
 589         RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
 590                  ("update_attrib: encrypt=%d  securitypriv.sw_encrypt=%d\n",
 591                   pattrib->encrypt, padapter->securitypriv.sw_encrypt));
 592
 593         if (pattrib->encrypt &&
 594             (padapter->securitypriv.sw_encrypt || !psecuritypriv->hw_decrypted)) {
 595                 pattrib->bswenc = true;
 596                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
 597                          ("update_attrib: encrypt=%d securitypriv.hw_decrypted=%d bswenc = true\n",
 598                           pattrib->encrypt, padapter->securitypriv.sw_encrypt));
 599         } else {
 600                 pattrib->bswenc = false;
 601                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("update_attrib: bswenc = false\n"));
 602         }
 603
 604         update_attrib_phy_info(pattrib, psta);
 605
 606 exit:
 607
 608
 609         return res;
 610 }
 611
 612 static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitframe)
 613 {
 614         int curfragnum, length;
 615         u8      *pframe, *payload, mic[8];
 616         struct  mic_data micdata;
 617         struct  sta_info *stainfo;
 618         struct  pkt_attrib *pattrib = &pxmitframe->attrib;
 619         struct  security_priv   *psecuritypriv = &padapter->securitypriv;
 620         struct  xmit_priv *pxmitpriv = &padapter->xmitpriv;
 621         u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
 622         u8 hw_hdr_offset = 0;
 623         int bmcst = IS_MCAST(pattrib->ra);
 624
 625         if (pattrib->psta)
 626                 stainfo = pattrib->psta;
 627         else
 628                 stainfo = rtw_get_stainfo(&padapter->stapriv, &pattrib->ra[0]);
 629
 630
 631         hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
 632
 633         if (pattrib->encrypt == _TKIP_) {/* if (psecuritypriv->dot11PrivacyAlgrthm == _TKIP_PRIVACY_) */
 634                 /* encode mic code */
 635                 if (stainfo != NULL) {
 636                         u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
 637                                            0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
 638                                            0x0, 0x0};
 639
 640                         pframe = pxmitframe->buf_addr + hw_hdr_offset;
 641
 642                         if (bmcst) {
 643                                 if (!memcmp(psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey, null_key, 16))
 644                                         return _FAIL;
 645                                 /* start to calculate the mic code */
 646                                 rtw_secmicsetkey(&micdata, psecuritypriv->dot118021XGrptxmickey[psecuritypriv->dot118021XGrpKeyid].skey);
 647                         } else {
 648                                 if (!memcmp(&stainfo->dot11tkiptxmickey.skey[0], null_key, 16)) {
 649                                         /* DbgPrint("\nxmitframe_addmic:stainfo->dot11tkiptxmickey == 0\n"); */
 650                                         /* msleep(10); */
 651                                         return _FAIL;
 652                                 }
 653                                 /* start to calculate the mic code */
 654                                 rtw_secmicsetkey(&micdata, &stainfo->dot11tkiptxmickey.skey[0]);
 655                         }
 656
 657                         if (pframe[1]&1) {   /* ToDS == 1 */
 658                                 rtw_secmicappend(&micdata, &pframe[16], 6);  /* DA */
 659                                 if (pframe[1]&2)  /* From Ds == 1 */
 660                                         rtw_secmicappend(&micdata, &pframe[24], 6);
 661                                 else
 662                                 rtw_secmicappend(&micdata, &pframe[10], 6);
 663                         } else {        /* ToDS == 0 */
 664                                 rtw_secmicappend(&micdata, &pframe[4], 6);   /* DA */
 665                                 if (pframe[1]&2)  /* From Ds == 1 */
 666                                         rtw_secmicappend(&micdata, &pframe[16], 6);
 667                                 else
 668                                         rtw_secmicappend(&micdata, &pframe[10], 6);
 669                         }
 670
 671                         if (pattrib->qos_en)
 672                                 priority[0] = (u8)pxmitframe->attrib.priority;
 673
 674                         rtw_secmicappend(&micdata, &priority[0], 4);
 675
 676                         payload = pframe;
 677
 678                         for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
 679                                 payload = (u8 *)round_up((size_t)(payload), 4);
 680                                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
 681                                          ("=== curfragnum=%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
 682                                          curfragnum, *payload, *(payload+1),
 683                                          *(payload+2), *(payload+3),
 684                                          *(payload+4), *(payload+5),
 685                                          *(payload+6), *(payload+7)));
 686
 687                                 payload = payload+pattrib->hdrlen+pattrib->iv_len;
 688                                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
 689                                          ("curfragnum=%d pattrib->hdrlen=%d pattrib->iv_len=%d",
 690                                          curfragnum, pattrib->hdrlen, pattrib->iv_len));
 691                                 if ((curfragnum+1) == pattrib->nr_frags) {
 692                                         length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
 693                                         rtw_secmicappend(&micdata, payload, length);
 694                                         payload = payload+length;
 695                                 } else {
 696                                         length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-((pattrib->bswenc) ? pattrib->icv_len : 0);
 697                                         rtw_secmicappend(&micdata, payload, length);
 698                                         payload = payload+length+pattrib->icv_len;
 699                                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum=%d length=%d pattrib->icv_len=%d", curfragnum, length, pattrib->icv_len));
 700                                 }
 701                         }
 702                         rtw_secgetmic(&micdata, &(mic[0]));
 703                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: before add mic code!!!\n"));
 704                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: pattrib->last_txcmdsz=%d!!!\n", pattrib->last_txcmdsz));
 705                         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\
 706   mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
 707                                 mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
 708                         /* add mic code  and add the mic code length in last_txcmdsz */
 709
 710                         memcpy(payload, &(mic[0]), 8);
 711                         pattrib->last_txcmdsz += 8;
 712
 713                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ======== last pkt ========\n"));
 714                         payload = payload-pattrib->last_txcmdsz+8;
 715                         for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum = curfragnum+8)
 716                                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
 717                                                  (" %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x ",
 718                                                  *(payload+curfragnum), *(payload+curfragnum+1),
 719                                                  *(payload+curfragnum+2), *(payload+curfragnum+3),
 720                                                  *(payload+curfragnum+4), *(payload+curfragnum+5),
 721                                                  *(payload+curfragnum+6), *(payload+curfragnum+7)));
 722                         } else {
 723                                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: rtw_get_stainfo==NULL!!!\n"));
 724                         }
 725         }
 726
 727
 728         return _SUCCESS;
 729 }
 730
 731 static s32 xmitframe_swencrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
 732 {
 733         struct  pkt_attrib       *pattrib = &pxmitframe->attrib;
 734
 735
 736         if (pattrib->bswenc) {
 737                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_, ("### xmitframe_swencrypt\n"));
 738                 switch (pattrib->encrypt) {
 739                 case _WEP40_:
 740                 case _WEP104_:
 741                         rtw_wep_encrypt(padapter, (u8 *)pxmitframe);
 742                         break;
 743                 case _TKIP_:
 744                         rtw_tkip_encrypt(padapter, (u8 *)pxmitframe);
 745                         break;
 746                 case _AES_:
 747                         rtw_aes_encrypt(padapter, (u8 *)pxmitframe);
 748                         break;
 749                 default:
 750                         break;
 751                 }
 752         } else {
 753                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_, ("### xmitframe_hwencrypt\n"));
 754         }
 755
 756
 757         return _SUCCESS;
 758 }
 759
 760 s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattrib)
 761 {
 762         u16 *qc;
 763
 764         struct ieee80211_hdr *pwlanhdr = (struct ieee80211_hdr *)hdr;
 765         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 766         struct qos_priv *pqospriv = &pmlmepriv->qospriv;
 767         u8 qos_option = false;
 768
 769         int res = _SUCCESS;
 770         __le16 *fctrl = &pwlanhdr->frame_control;
 771
 772         struct sta_info *psta;
 773
 774         int bmcst = IS_MCAST(pattrib->ra);
 775
 776
 777         if (pattrib->psta) {
 778                 psta = pattrib->psta;
 779         } else {
 780                 if (bmcst)
 781                         psta = rtw_get_bcmc_stainfo(padapter);
 782                 else
 783                         psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
 784         }
 785
 786         memset(hdr, 0, WLANHDR_OFFSET);
 787
 788         SetFrameSubType(fctrl, pattrib->subtype);
 789
 790         if (pattrib->subtype & WIFI_DATA_TYPE) {
 791                 if ((check_fwstate(pmlmepriv,  WIFI_STATION_STATE) == true)) {
 792                         /* to_ds = 1, fr_ds = 0; */
 793                         /* Data transfer to AP */
 794                         SetToDs(fctrl);
 795                         memcpy(pwlanhdr->addr1, get_bssid(pmlmepriv), ETH_ALEN);
 796                         memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
 797                         memcpy(pwlanhdr->addr3, pattrib->dst, ETH_ALEN);
 798
 799                         if (pqospriv->qos_option)
 800                                 qos_option = true;
 801                 } else if (check_fwstate(pmlmepriv,  WIFI_AP_STATE)) {
 802                         /* to_ds = 0, fr_ds = 1; */
 803                         SetFrDs(fctrl);
 804                         memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
 805                         memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN);
 806                         memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);
 807
 808                         if (psta && psta->qos_option)
 809                                 qos_option = true;
 810                 } else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ||
 811                            check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
 812                         memcpy(pwlanhdr->addr1, pattrib->dst, ETH_ALEN);
 813                         memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN);
 814                         memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);
 815
 816                         if (psta && psta->qos_option)
 817                                 qos_option = true;
 818                 } else {
 819                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));
 820                         res = _FAIL;
 821                         goto exit;
 822                 }
 823
 824                 if (pattrib->mdata)
 825                         SetMData(fctrl);
 826
 827                 if (pattrib->encrypt)
 828                         SetPrivacy(fctrl);
 829
 830                 if (qos_option) {
 831                         qc = (unsigned short *)(hdr + pattrib->hdrlen - 2);
 832
 833                         if (pattrib->priority)
 834                                 SetPriority(qc, pattrib->priority);
 835
 836                         SetEOSP(qc, pattrib->eosp);
 837
 838                         SetAckpolicy(qc, pattrib->ack_policy);
 839                 }
 840
 841                 /* TODO: fill HT Control Field */
 842
 843                 /* Update Seq Num will be handled by f/w */
 844                 if (psta) {
 845                         psta->sta_xmitpriv.txseq_tid[pattrib->priority]++;
 846                         psta->sta_xmitpriv.txseq_tid[pattrib->priority] &= 0xFFF;
 847
 848                         pattrib->seqnum = psta->sta_xmitpriv.txseq_tid[pattrib->priority];
 849
 850                         SetSeqNum(hdr, pattrib->seqnum);
 851
 852                         /* check if enable ampdu */
 853                         if (pattrib->ht_en && psta->htpriv.ampdu_enable) {
 854                                 if (psta->htpriv.agg_enable_bitmap & BIT(pattrib->priority))
 855                                         pattrib->ampdu_en = true;
 856                         }
 857
 858                         /* re-check if enable ampdu by BA_starting_seqctrl */
 859                         if (pattrib->ampdu_en) {
 860                                 u16 tx_seq;
 861
 862                                 tx_seq = psta->BA_starting_seqctrl[pattrib->priority & 0x0f];
 863
 864                                 /* check BA_starting_seqctrl */
 865                                 if (SN_LESS(pattrib->seqnum, tx_seq)) {
 866                                         pattrib->ampdu_en = false;/* AGG BK */
 867                                 } else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {
 868                                         psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (tx_seq+1)&0xfff;
 869
 870                                         pattrib->ampdu_en = true;/* AGG EN */
 871                                 } else {
 872                                         psta->BA_starting_seqctrl[pattrib->priority & 0x0f] = (pattrib->seqnum+1)&0xfff;
 873                                         pattrib->ampdu_en = true;/* AGG EN */
 874                                 }
 875                         }
 876                 }
 877         }
 878 exit:
 879
 880         return res;
 881 }
 882
 883 s32 rtw_txframes_pending(struct adapter *padapter)
 884 {
 885         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 886
 887         return (!list_empty(&pxmitpriv->be_pending.queue) ||
 888                         !list_empty(&pxmitpriv->bk_pending.queue) ||
 889                         !list_empty(&pxmitpriv->vi_pending.queue) ||
 890                         !list_empty(&pxmitpriv->vo_pending.queue));
 891 }
 892
 893 s32 rtw_txframes_sta_ac_pending(struct adapter *padapter, struct pkt_attrib *pattrib)
 894 {
 895         struct sta_info *psta;
 896         struct tx_servq *ptxservq;
 897         int priority = pattrib->priority;
 898
 899         psta = pattrib->psta;
 900
 901         switch (priority) {
 902         case 1:
 903         case 2:
 904                 ptxservq = &(psta->sta_xmitpriv.bk_q);
 905                 break;
 906         case 4:
 907         case 5:
 908                 ptxservq = &(psta->sta_xmitpriv.vi_q);
 909                 break;
 910         case 6:
 911         case 7:
 912                 ptxservq = &(psta->sta_xmitpriv.vo_q);
 913                 break;
 914         case 0:
 915         case 3:
 916         default:
 917                 ptxservq = &(psta->sta_xmitpriv.be_q);
 918                 break;
 919         }
 920
 921         return ptxservq->qcnt;
 922 }
 923
 924 /*
 925  * Calculate wlan 802.11 packet MAX size from pkt_attrib
 926  * This function doesn't consider fragment case
 927  */
 928 u32 rtw_calculate_wlan_pkt_size_by_attribue(struct pkt_attrib *pattrib)
 929 {
 930         u32     len = 0;
 931
 932         len = pattrib->hdrlen + pattrib->iv_len; /*  WLAN Header and IV */
 933         len += SNAP_SIZE + sizeof(u16); /*  LLC */
 934         len += pattrib->pktlen;
 935         if (pattrib->encrypt == _TKIP_)
 936                 len += 8; /*  MIC */
 937         len += ((pattrib->bswenc) ? pattrib->icv_len : 0); /*  ICV */
 938
 939         return len;
 940 }
 941
 942 /*
 943
 944 This sub-routine will perform all the following:
 945
 946 1. remove 802.3 header.
 947 2. create wlan_header, based on the info in pxmitframe
 948 3. append sta's iv/ext-iv
 949 4. append LLC
 950 5. move frag chunk from pframe to pxmitframe->mem
 951 6. apply sw-encrypt, if necessary.
 952
 953 */
 954 s32 rtw_xmitframe_coalesce(struct adapter *padapter, struct sk_buff *pkt, struct xmit_frame *pxmitframe)
 955 {
 956         struct pkt_file pktfile;
 957         s32 frg_inx, frg_len, mpdu_len, llc_sz, mem_sz;
 958         size_t addr;
 959         u8 *pframe, *mem_start;
 960         u8 hw_hdr_offset;
 961         struct sta_info         *psta;
 962         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
 963         struct pkt_attrib       *pattrib = &pxmitframe->attrib;
 964         u8 *pbuf_start;
 965         s32 bmcst = IS_MCAST(pattrib->ra);
 966         s32 res = _SUCCESS;
 967
 968
 969         psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
 970
 971         if (psta == NULL)
 972                 return _FAIL;
 973
 974         if (pxmitframe->buf_addr == NULL) {
 975                 DBG_88E("==> %s buf_addr == NULL\n", __func__);
 976                 return _FAIL;
 977         }
 978
 979         pbuf_start = pxmitframe->buf_addr;
 980
 981         hw_hdr_offset =  TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
 982
 983         mem_start = pbuf_start +        hw_hdr_offset;
 984
 985         if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
 986                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n"));
 987                 DBG_88E("rtw_xmitframe_coalesce: rtw_make_wlanhdr fail; drop pkt\n");
 988                 res = _FAIL;
 989                 goto exit;
 990         }
 991
 992         _rtw_open_pktfile(pkt, &pktfile);
 993         _rtw_pktfile_read(&pktfile, NULL, ETH_HLEN);
 994
 995         frg_inx = 0;
 996         frg_len = pxmitpriv->frag_len - 4;/* 2346-4 = 2342 */
 997
 998         while (1) {
 999                 llc_sz = 0;
1000
1001                 mpdu_len = frg_len;
1002
1003                 pframe = mem_start;
1004
1005                 SetMFrag(mem_start);
1006
1007                 pframe += pattrib->hdrlen;
1008                 mpdu_len -= pattrib->hdrlen;
1009
1010                 /* adding icv, if necessary... */
1011                 if (pattrib->iv_len) {
1012                         switch (pattrib->encrypt) {
1013                         case _WEP40_:
1014                         case _WEP104_:
1015                                 WEP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1016                                 break;
1017                         case _TKIP_:
1018                                 if (bmcst)
1019                                         TKIP_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1020                                 else
1021                                         TKIP_IV(pattrib->iv, psta->dot11txpn, 0);
1022                                 break;
1023                         case _AES_:
1024                                 if (bmcst)
1025                                         AES_IV(pattrib->iv, psta->dot11txpn, pattrib->key_idx);
1026                                 else
1027                                         AES_IV(pattrib->iv, psta->dot11txpn, 0);
1028                                 break;
1029                         }
1030
1031                         memcpy(pframe, pattrib->iv, pattrib->iv_len);
1032
1033                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
1034                                  ("rtw_xmitframe_coalesce: keyid=%d pattrib->iv[3]=%.2x pframe=%.2x %.2x %.2x %.2x\n",
1035                                   padapter->securitypriv.dot11PrivacyKeyIndex, pattrib->iv[3], *pframe, *(pframe+1), *(pframe+2), *(pframe+3)));
1036
1037                         pframe += pattrib->iv_len;
1038
1039                         mpdu_len -= pattrib->iv_len;
1040                 }
1041
1042                 if (frg_inx == 0) {
1043                         llc_sz = rtw_put_snap(pframe, pattrib->ether_type);
1044                         pframe += llc_sz;
1045                         mpdu_len -= llc_sz;
1046                 }
1047
1048                 if ((pattrib->icv_len > 0) && (pattrib->bswenc))
1049                         mpdu_len -= pattrib->icv_len;
1050
1051                 if (bmcst) {
1052                         /*  don't do fragment to broadcat/multicast packets */
1053                         mem_sz = _rtw_pktfile_read(&pktfile, pframe, pattrib->pktlen);
1054                 } else {
1055                         mem_sz = _rtw_pktfile_read(&pktfile, pframe, mpdu_len);
1056                 }
1057
1058                 pframe += mem_sz;
1059
1060                 if ((pattrib->icv_len > 0) && (pattrib->bswenc)) {
1061                         memcpy(pframe, pattrib->icv, pattrib->icv_len);
1062                         pframe += pattrib->icv_len;
1063                 }
1064
1065                 frg_inx++;
1066
1067                 if (bmcst || rtw_endofpktfile(&pktfile)) {
1068                         pattrib->nr_frags = frg_inx;
1069
1070                         pattrib->last_txcmdsz = pattrib->hdrlen + pattrib->iv_len + ((pattrib->nr_frags == 1) ? llc_sz : 0) +
1071                                                 ((pattrib->bswenc) ? pattrib->icv_len : 0) + mem_sz;
1072
1073                         ClearMFrag(mem_start);
1074
1075                         break;
1076                 } else {
1077                         RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("%s: There're still something in packet!\n", __func__));
1078                 }
1079
1080                 addr = (size_t)(pframe);
1081
1082                 mem_start = (unsigned char *)round_up(addr, 4) + hw_hdr_offset;
1083                 memcpy(mem_start, pbuf_start + hw_hdr_offset, pattrib->hdrlen);
1084         }
1085
1086         /* Frame is about to be encrypted. Forward it to the monitor first. */
1087         rtl88eu_mon_xmit_hook(padapter->pmondev, pxmitframe, frg_len);
1088
1089         if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
1090                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
1091                 DBG_88E("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
1092                 res = _FAIL;
1093                 goto exit;
1094         }
1095
1096         xmitframe_swencrypt(padapter, pxmitframe);
1097
1098         if (!bmcst)
1099                 update_attrib_vcs_info(padapter, pxmitframe);
1100         else
1101                 pattrib->vcs_mode = NONE_VCS;
1102
1103 exit:
1104
1105
1106         return res;
1107 }
1108
1109 /* Logical Link Control(LLC) SubNetwork Attachment Point(SNAP) header
1110  * IEEE LLC/SNAP header contains 8 octets
1111  * First 3 octets comprise the LLC portion
1112  * SNAP portion, 5 octets, is divided into two fields:
1113  *      Organizationally Unique Identifier(OUI), 3 octets,
1114  *      type, defined by that organization, 2 octets.
1115  */
1116 s32 rtw_put_snap(u8 *data, u16 h_proto)
1117 {
1118         struct ieee80211_snap_hdr *snap;
1119         u8 *oui;
1120
1121
1122         snap = (struct ieee80211_snap_hdr *)data;
1123         snap->dsap = 0xaa;
1124         snap->ssap = 0xaa;
1125         snap->ctrl = 0x03;
1126
1127         if (h_proto == 0x8137 || h_proto == 0x80f3)
1128                 oui = P802_1H_OUI;
1129         else
1130                 oui = RFC1042_OUI;
1131
1132         snap->oui[0] = oui[0];
1133         snap->oui[1] = oui[1];
1134         snap->oui[2] = oui[2];
1135
1136         *(__be16 *)(data + SNAP_SIZE) = htons(h_proto);
1137
1138
1139         return SNAP_SIZE + sizeof(u16);
1140 }
1141
1142 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
1143 {
1144         uint    protection;
1145         u8      *perp;
1146         int      erp_len;
1147         struct  xmit_priv *pxmitpriv = &padapter->xmitpriv;
1148         struct  registry_priv *pregistrypriv = &padapter->registrypriv;
1149
1150
1151         switch (pxmitpriv->vcs_setting) {
1152         case DISABLE_VCS:
1153                 pxmitpriv->vcs = NONE_VCS;
1154                 break;
1155         case ENABLE_VCS:
1156                 break;
1157         case AUTO_VCS:
1158         default:
1159                 perp = rtw_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
1160                 if (perp == NULL) {
1161                         pxmitpriv->vcs = NONE_VCS;
1162                 } else {
1163                         protection = (*(perp + 2)) & BIT(1);
1164                         if (protection) {
1165                                 if (pregistrypriv->vcs_type == RTS_CTS)
1166                                         pxmitpriv->vcs = RTS_CTS;
1167                                 else
1168                                         pxmitpriv->vcs = CTS_TO_SELF;
1169                         } else {
1170                                 pxmitpriv->vcs = NONE_VCS;
1171                         }
1172                 }
1173                 break;
1174         }
1175
1176 }
1177
1178 void rtw_count_tx_stats(struct adapter *padapter, struct xmit_frame *pxmitframe, int sz)
1179 {
1180         struct sta_info *psta = NULL;
1181         struct stainfo_stats *pstats = NULL;
1182         struct xmit_priv        *pxmitpriv = &padapter->xmitpriv;
1183         struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
1184
1185         if ((pxmitframe->frame_tag&0x0f) == DATA_FRAMETAG) {
1186                 pxmitpriv->tx_bytes += sz;
1187                 pmlmepriv->LinkDetectInfo.NumTxOkInPeriod += pxmitframe->agg_num;
1188
1189                 psta = pxmitframe->attrib.psta;
1190                 if (psta) {
1191                         pstats = &psta->sta_stats;
1192                         pstats->tx_pkts += pxmitframe->agg_num;
1193                         pstats->tx_bytes += sz;
1194                 }
1195         }
1196 }
1197
1198 struct xmit_buf *rtw_alloc_xmitbuf_ext(struct xmit_priv *pxmitpriv)
1199 {
1200         unsigned long irql;
1201         struct xmit_buf *pxmitbuf;
1202         struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1203
1204         spin_lock_irqsave(&pfree_queue->lock, irql);
1205         pxmitbuf = list_first_entry_or_null(&pfree_queue->queue,
1206                                             struct xmit_buf, list);
1207         if (pxmitbuf) {
1208                 list_del_init(&pxmitbuf->list);
1209                 pxmitpriv->free_xmit_extbuf_cnt--;
1210                 pxmitbuf->priv_data = NULL;
1211                 /* pxmitbuf->ext_tag = true; */
1212                 if (pxmitbuf->sctx) {
1213                         DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1214                         rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1215                 }
1216         }
1217         spin_unlock_irqrestore(&pfree_queue->lock, irql);
1218
1219         return pxmitbuf;
1220 }
1221
1222 s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1223 {
1224         unsigned long irql;
1225         struct __queue *pfree_queue = &pxmitpriv->free_xmit_extbuf_queue;
1226
1227
1228         if (pxmitbuf == NULL)
1229                 return _FAIL;
1230
1231         spin_lock_irqsave(&pfree_queue->lock, irql);
1232
1233         list_del_init(&pxmitbuf->list);
1234
1235         list_add_tail(&(pxmitbuf->list), get_list_head(pfree_queue));
1236         pxmitpriv->free_xmit_extbuf_cnt++;
1237
1238         spin_unlock_irqrestore(&pfree_queue->lock, irql);
1239
1240
1241         return _SUCCESS;
1242 }
1243
1244 struct xmit_buf *rtw_alloc_xmitbuf(struct xmit_priv *pxmitpriv)
1245 {
1246         unsigned long irql;
1247         struct xmit_buf *pxmitbuf;
1248         struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1249
1250         /* DBG_88E("+rtw_alloc_xmitbuf\n"); */
1251
1252         spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1253         pxmitbuf = list_first_entry_or_null(&pfree_xmitbuf_queue->queue,
1254                                             struct xmit_buf, list);
1255         if (pxmitbuf) {
1256                 list_del_init(&pxmitbuf->list);
1257                 pxmitpriv->free_xmitbuf_cnt--;
1258                 pxmitbuf->priv_data = NULL;
1259                 if (pxmitbuf->sctx) {
1260                         DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1261                         rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_ALLOC);
1262                 }
1263         }
1264         spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1265
1266         return pxmitbuf;
1267 }
1268
1269 s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
1270 {
1271         unsigned long irql;
1272         struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;
1273
1274         if (pxmitbuf == NULL)
1275                 return _FAIL;
1276
1277         if (pxmitbuf->sctx) {
1278                 DBG_88E("%s pxmitbuf->sctx is not NULL\n", __func__);
1279                 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_BUF_FREE);
1280         }
1281
1282         if (pxmitbuf->ext_tag) {
1283                 rtw_free_xmitbuf_ext(pxmitpriv, pxmitbuf);
1284         } else {
1285                 spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irql);
1286
1287                 list_del_init(&pxmitbuf->list);
1288
1289                 list_add_tail(&(pxmitbuf->list), get_list_head(pfree_xmitbuf_queue));
1290
1291                 pxmitpriv->free_xmitbuf_cnt++;
1292                 spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
1293         }
1294
1295
1296         return _SUCCESS;
1297 }
1298
1299 /*
1300 Calling context:
1301 1. OS_TXENTRY
1302 2. RXENTRY (rx_thread or RX_ISR/RX_CallBack)
1303
1304 If we turn on USE_RXTHREAD, then, no need for critical section.
1305 Otherwise, we must use _enter/_exit critical to protect free_xmit_queue...
1306
1307 Must be very very cautious...
1308
1309 */
1310
1311 struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)
1312                                 /* _queue *pfree_xmit_queue) */
1313 {
1314         /*
1315                 Please remember to use all the osdep_service api,
1316                 and lock/unlock or _enter/_exit critical to protect
1317                 pfree_xmit_queue
1318         */
1319         struct xmit_frame *pxframe;
1320         struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1321
1322         spin_lock_bh(&pfree_xmit_queue->lock);
1323         pxframe = list_first_entry_or_null(&pfree_xmit_queue->queue,
1324                                            struct xmit_frame, list);
1325         if (!pxframe) {
1326                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1327                          ("rtw_alloc_xmitframe:%d\n",
1328                          pxmitpriv->free_xmitframe_cnt));
1329         } else {
1330                 list_del_init(&pxframe->list);
1331
1332                 /* default value setting */
1333                 pxmitpriv->free_xmitframe_cnt--;
1334
1335                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
1336                          ("rtw_alloc_xmitframe():free_xmitframe_cnt=%d\n",
1337                          pxmitpriv->free_xmitframe_cnt));
1338
1339                 pxframe->buf_addr = NULL;
1340                 pxframe->pxmitbuf = NULL;
1341
1342                 memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib));
1343                 /* pxframe->attrib.psta = NULL; */
1344
1345                 pxframe->frame_tag = DATA_FRAMETAG;
1346
1347                 pxframe->pkt = NULL;
1348                 pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */
1349
1350                 pxframe->agg_num = 1;
1351                 pxframe->ack_report = 0;
1352         }
1353         spin_unlock_bh(&pfree_xmit_queue->lock);
1354
1355         return pxframe;
1356 }
1357
1358 s32 rtw_free_xmitframe(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitframe)
1359 {
1360         struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
1361         struct adapter *padapter = pxmitpriv->adapter;
1362         struct sk_buff *pndis_pkt = NULL;
1363
1364
1365         if (pxmitframe == NULL) {
1366                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====== rtw_free_xmitframe():pxmitframe == NULL!!!!!!!!!!\n"));
1367                 goto exit;
1368         }
1369
1370         spin_lock_bh(&pfree_xmit_queue->lock);
1371
1372         list_del_init(&pxmitframe->list);
1373
1374         if (pxmitframe->pkt) {
1375                 pndis_pkt = pxmitframe->pkt;
1376                 pxmitframe->pkt = NULL;
1377         }
1378
1379         list_add_tail(&pxmitframe->list, get_list_head(pfree_xmit_queue));
1380
1381         pxmitpriv->free_xmitframe_cnt++;
1382         RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe():free_xmitframe_cnt=%d\n", pxmitpriv->free_xmitframe_cnt));
1383
1384         spin_unlock_bh(&pfree_xmit_queue->lock);
1385
1386         if (pndis_pkt)
1387                 rtw_os_pkt_complete(padapter, pndis_pkt);
1388
1389 exit:
1390
1391
1392         return _SUCCESS;
1393 }
1394
1395 void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pframequeue)
1396 {
1397         struct list_head *plist, *phead;
1398         struct  xmit_frame      *pxmitframe;
1399
1400
1401         spin_lock_bh(&(pframequeue->lock));
1402
1403         phead = get_list_head(pframequeue);
1404         plist = phead->next;
1405
1406         while (phead != plist) {
1407                 pxmitframe = container_of(plist, struct xmit_frame, list);
1408
1409                 plist = plist->next;
1410
1411                 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1412         }
1413         spin_unlock_bh(&(pframequeue->lock));
1414
1415 }
1416
1417 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
1418 {
1419         if (rtw_xmit_classifier(padapter, pxmitframe) == _FAIL) {
1420                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
1421                          ("rtw_xmitframe_enqueue: drop xmit pkt for classifier fail\n"));
1422 /*              pxmitframe->pkt = NULL; */
1423                 return _FAIL;
1424         }
1425
1426         return _SUCCESS;
1427 }
1428
1429 static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit, struct tx_servq *ptxservq, struct __queue *pframe_queue)
1430 {
1431         struct list_head *xmitframe_plist, *xmitframe_phead;
1432         struct  xmit_frame      *pxmitframe = NULL;
1433
1434         xmitframe_phead = get_list_head(pframe_queue);
1435         xmitframe_plist = xmitframe_phead->next;
1436
1437         if (xmitframe_phead != xmitframe_plist) {
1438                 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1439
1440                 xmitframe_plist = xmitframe_plist->next;
1441
1442                 list_del_init(&pxmitframe->list);
1443
1444                 ptxservq->qcnt--;
1445         }
1446         return pxmitframe;
1447 }
1448
1449 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i, int entry)
1450 {
1451         struct list_head *sta_plist, *sta_phead;
1452         struct hw_xmit *phwxmit;
1453         struct tx_servq *ptxservq = NULL;
1454         struct __queue *pframe_queue = NULL;
1455         struct xmit_frame *pxmitframe = NULL;
1456         struct adapter *padapter = pxmitpriv->adapter;
1457         struct registry_priv    *pregpriv = &padapter->registrypriv;
1458         int i, inx[4];
1459
1460
1461         inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
1462
1463         if (pregpriv->wifi_spec == 1) {
1464                 int j;
1465
1466                 for (j = 0; j < 4; j++)
1467                         inx[j] = pxmitpriv->wmm_para_seq[j];
1468         }
1469
1470         spin_lock_bh(&pxmitpriv->lock);
1471
1472         for (i = 0; i < entry; i++) {
1473                 phwxmit = phwxmit_i + inx[i];
1474
1475                 sta_phead = get_list_head(phwxmit->sta_queue);
1476                 sta_plist = sta_phead->next;
1477
1478                 while (sta_phead != sta_plist) {
1479                         ptxservq = container_of(sta_plist, struct tx_servq, tx_pending);
1480
1481                         pframe_queue = &ptxservq->sta_pending;
1482
1483                         pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue);
1484
1485                         if (pxmitframe) {
1486                                 phwxmit->accnt--;
1487
1488                                 /* Remove sta node when there are no pending packets. */
1489                                 if (list_empty(&pframe_queue->queue)) /* must be done after get_next and before break */
1490                                         list_del_init(&ptxservq->tx_pending);
1491                                 goto exit;
1492                         }
1493
1494                         sta_plist = sta_plist->next;
1495                 }
1496         }
1497 exit:
1498         spin_unlock_bh(&pxmitpriv->lock);
1499         return pxmitframe;
1500 }
1501
1502 struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *psta, int up, u8 *ac)
1503 {
1504         struct tx_servq *ptxservq;
1505
1506         switch (up) {
1507         case 1:
1508         case 2:
1509                 ptxservq = &(psta->sta_xmitpriv.bk_q);
1510                 *(ac) = 3;
1511                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BK\n"));
1512                 break;
1513         case 4:
1514         case 5:
1515                 ptxservq = &(psta->sta_xmitpriv.vi_q);
1516                 *(ac) = 1;
1517                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VI\n"));
1518                 break;
1519         case 6:
1520         case 7:
1521                 ptxservq = &(psta->sta_xmitpriv.vo_q);
1522                 *(ac) = 0;
1523                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VO\n"));
1524                 break;
1525         case 0:
1526         case 3:
1527         default:
1528                 ptxservq = &(psta->sta_xmitpriv.be_q);
1529                 *(ac) = 2;
1530                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BE\n"));
1531         break;
1532         }
1533
1534
1535         return ptxservq;
1536 }
1537
1538 /*
1539  * Will enqueue pxmitframe to the proper queue,
1540  * and indicate it to xx_pending list.....
1541  */
1542 s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
1543 {
1544         u8      ac_index;
1545         struct sta_info *psta;
1546         struct tx_servq *ptxservq;
1547         struct pkt_attrib       *pattrib = &pxmitframe->attrib;
1548         struct sta_priv *pstapriv = &padapter->stapriv;
1549         struct hw_xmit  *phwxmits =  padapter->xmitpriv.hwxmits;
1550         int res = _SUCCESS;
1551
1552
1553         if (pattrib->psta)
1554                 psta = pattrib->psta;
1555         else
1556                 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1557
1558         if (psta == NULL) {
1559                 res = _FAIL;
1560                 DBG_88E("rtw_xmit_classifier: psta == NULL\n");
1561                 RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("rtw_xmit_classifier: psta == NULL\n"));
1562                 goto exit;
1563         }
1564
1565         ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1566
1567         if (list_empty(&ptxservq->tx_pending))
1568                 list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
1569
1570         list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
1571         ptxservq->qcnt++;
1572         phwxmits[ac_index].accnt++;
1573 exit:
1574
1575
1576         return res;
1577 }
1578
1579 void rtw_alloc_hwxmits(struct adapter *padapter)
1580 {
1581         struct hw_xmit *hwxmits;
1582         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1583
1584         pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
1585
1586         pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry,
1587                                      sizeof(struct hw_xmit), GFP_KERNEL);
1588
1589         hwxmits = pxmitpriv->hwxmits;
1590
1591         hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
1592         hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
1593         hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
1594         hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
1595 }
1596
1597 void rtw_free_hwxmits(struct adapter *padapter)
1598 {
1599         struct hw_xmit *hwxmits;
1600         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1601
1602         hwxmits = pxmitpriv->hwxmits;
1603         kfree(hwxmits);
1604 }
1605
1606 void rtw_init_hwxmits(struct hw_xmit *phwxmit, int entry)
1607 {
1608         int i;
1609         for (i = 0; i < entry; i++, phwxmit++)
1610                 phwxmit->accnt = 0;
1611 }
1612
1613 u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
1614 {
1615         u32 addr;
1616         struct pkt_attrib *pattrib = &pxmitframe->attrib;
1617
1618         switch (pattrib->qsel) {
1619         case 0:
1620         case 3:
1621                 addr = BE_QUEUE_INX;
1622                 break;
1623         case 1:
1624         case 2:
1625                 addr = BK_QUEUE_INX;
1626                 break;
1627         case 4:
1628         case 5:
1629                 addr = VI_QUEUE_INX;
1630                 break;
1631         case 6:
1632         case 7:
1633                 addr = VO_QUEUE_INX;
1634                 break;
1635         case 0x10:
1636                 addr = BCN_QUEUE_INX;
1637                 break;
1638         case 0x11:/* BC/MC in PS (HIQ) */
1639                 addr = HIGH_QUEUE_INX;
1640                 break;
1641         case 0x12:
1642         default:
1643                 addr = MGT_QUEUE_INX;
1644                 break;
1645         }
1646
1647         return addr;
1648 }
1649
1650 /*
1651  * The main transmit(tx) entry
1652  *
1653  * Return
1654  *      1       enqueue
1655  *      0       success, hardware will handle this xmit frame(packet)
1656  *      <0      fail
1657  */
1658 s32 rtw_xmit(struct adapter *padapter, struct sk_buff **ppkt)
1659 {
1660         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1661         struct xmit_frame *pxmitframe = NULL;
1662         s32 res;
1663
1664         pxmitframe = rtw_alloc_xmitframe(pxmitpriv);
1665         if (pxmitframe == NULL) {
1666                 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("rtw_xmit: no more pxmitframe\n"));
1667                 DBG_88E("DBG_TX_DROP_FRAME %s no more pxmitframe\n", __func__);
1668                 return -1;
1669         }
1670
1671         res = update_attrib(padapter, *ppkt, &pxmitframe->attrib);
1672
1673         if (res == _FAIL) {
1674                 RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("rtw_xmit: update attrib fail\n"));
1675                 rtw_free_xmitframe(pxmitpriv, pxmitframe);
1676                 return -1;
1677         }
1678         pxmitframe->pkt = *ppkt;
1679
1680         rtw_led_control(padapter, LED_CTL_TX);
1681
1682         pxmitframe->attrib.qsel = pxmitframe->attrib.priority;
1683
1684 #ifdef CONFIG_88EU_AP_MODE
1685         spin_lock_bh(&pxmitpriv->lock);
1686         if (xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe)) {
1687                 spin_unlock_bh(&pxmitpriv->lock);
1688                 return 1;
1689         }
1690         spin_unlock_bh(&pxmitpriv->lock);
1691 #endif
1692
1693         if (rtw_hal_xmit(padapter, pxmitframe) == false)
1694                 return 1;
1695
1696         return 0;
1697 }
1698
1699 #if defined(CONFIG_88EU_AP_MODE)
1700
1701 int xmitframe_enqueue_for_sleeping_sta(struct adapter *padapter, struct xmit_frame *pxmitframe)
1702 {
1703         int ret = false;
1704         struct sta_info *psta = NULL;
1705         struct sta_priv *pstapriv = &padapter->stapriv;
1706         struct pkt_attrib *pattrib = &pxmitframe->attrib;
1707         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1708         int bmcst = IS_MCAST(pattrib->ra);
1709
1710         if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == false)
1711                 return ret;
1712
1713         if (pattrib->psta)
1714                 psta = pattrib->psta;
1715         else
1716                 psta = rtw_get_stainfo(pstapriv, pattrib->ra);
1717
1718         if (psta == NULL)
1719                 return ret;
1720
1721         if (pattrib->triggered == 1) {
1722                 if (bmcst)
1723                         pattrib->qsel = 0x11;/* HIQ */
1724                 return ret;
1725         }
1726
1727         if (bmcst) {
1728                 spin_lock_bh(&psta->sleep_q.lock);
1729
1730                 if (pstapriv->sta_dz_bitmap) {/* if any one sta is in ps mode */
1731                         list_del_init(&pxmitframe->list);
1732
1733                         list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1734
1735                         psta->sleepq_len++;
1736
1737                         pstapriv->tim_bitmap |= BIT(0);/*  */
1738                         pstapriv->sta_dz_bitmap |= BIT(0);
1739
1740                         update_beacon(padapter, _TIM_IE_, NULL, false);/* tx bc/mc packets after update bcn */
1741
1742                         ret = true;
1743                 }
1744
1745                 spin_unlock_bh(&psta->sleep_q.lock);
1746
1747                 return ret;
1748         }
1749
1750         spin_lock_bh(&psta->sleep_q.lock);
1751
1752         if (psta->state&WIFI_SLEEP_STATE) {
1753                 u8 wmmps_ac = 0;
1754
1755                 if (pstapriv->sta_dz_bitmap&BIT(psta->aid)) {
1756                         list_del_init(&pxmitframe->list);
1757
1758                         list_add_tail(&pxmitframe->list, get_list_head(&psta->sleep_q));
1759
1760                         psta->sleepq_len++;
1761
1762                         switch (pattrib->priority) {
1763                         case 1:
1764                         case 2:
1765                                 wmmps_ac = psta->uapsd_bk&BIT(0);
1766                                 break;
1767                         case 4:
1768                         case 5:
1769                                 wmmps_ac = psta->uapsd_vi&BIT(0);
1770                                 break;
1771                         case 6:
1772                         case 7:
1773                                 wmmps_ac = psta->uapsd_vo&BIT(0);
1774                                 break;
1775                         case 0:
1776                         case 3:
1777                         default:
1778                                 wmmps_ac = psta->uapsd_be&BIT(0);
1779                                 break;
1780                         }
1781
1782                         if (wmmps_ac)
1783                                 psta->sleepq_ac_len++;
1784
1785                         if (((psta->has_legacy_ac) && (!wmmps_ac)) ||
1786                             ((!psta->has_legacy_ac) && (wmmps_ac))) {
1787                                 pstapriv->tim_bitmap |= BIT(psta->aid);
1788
1789                                 if (psta->sleepq_len == 1) {
1790                                         /* update BCN for TIM IE */
1791                                         update_beacon(padapter, _TIM_IE_, NULL, false);
1792                                 }
1793                         }
1794                         ret = true;
1795                 }
1796         }
1797
1798         spin_unlock_bh(&psta->sleep_q.lock);
1799
1800         return ret;
1801 }
1802
1803 static void dequeue_xmitframes_to_sleeping_queue(struct adapter *padapter, struct sta_info *psta, struct __queue *pframequeue)
1804 {
1805         struct list_head *plist, *phead;
1806         u8      ac_index;
1807         struct tx_servq *ptxservq;
1808         struct pkt_attrib       *pattrib;
1809         struct xmit_frame       *pxmitframe;
1810         struct hw_xmit *phwxmits =  padapter->xmitpriv.hwxmits;
1811
1812         phead = get_list_head(pframequeue);
1813         plist = phead->next;
1814
1815         while (phead != plist) {
1816                 pxmitframe = container_of(plist, struct xmit_frame, list);
1817
1818                 plist = plist->next;
1819
1820                 xmitframe_enqueue_for_sleeping_sta(padapter, pxmitframe);
1821
1822                 pattrib = &pxmitframe->attrib;
1823
1824                 ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
1825
1826                 ptxservq->qcnt--;
1827                 phwxmits[ac_index].accnt--;
1828         }
1829 }
1830
1831 void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
1832 {
1833         struct sta_info *psta_bmc;
1834         struct sta_xmit_priv *pstaxmitpriv;
1835         struct sta_priv *pstapriv = &padapter->stapriv;
1836         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1837
1838         pstaxmitpriv = &psta->sta_xmitpriv;
1839
1840         /* for BC/MC Frames */
1841         psta_bmc = rtw_get_bcmc_stainfo(padapter);
1842
1843         spin_lock_bh(&pxmitpriv->lock);
1844
1845         psta->state |= WIFI_SLEEP_STATE;
1846
1847         pstapriv->sta_dz_bitmap |= BIT(psta->aid);
1848
1849         dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
1850         list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
1851
1852         dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
1853         list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
1854
1855         dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
1856         list_del_init(&(pstaxmitpriv->be_q.tx_pending));
1857
1858         dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
1859         list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
1860
1861         /* for BC/MC Frames */
1862         pstaxmitpriv = &psta_bmc->sta_xmitpriv;
1863         dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
1864         list_del_init(&(pstaxmitpriv->be_q.tx_pending));
1865
1866         spin_unlock_bh(&pxmitpriv->lock);
1867 }
1868
1869 void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
1870 {
1871         u8 update_mask = 0, wmmps_ac = 0;
1872         struct sta_info *psta_bmc;
1873         struct list_head *xmitframe_plist, *xmitframe_phead;
1874         struct xmit_frame *pxmitframe = NULL;
1875         struct sta_priv *pstapriv = &padapter->stapriv;
1876
1877         spin_lock_bh(&psta->sleep_q.lock);
1878
1879         xmitframe_phead = get_list_head(&psta->sleep_q);
1880         xmitframe_plist = xmitframe_phead->next;
1881
1882         while (xmitframe_phead != xmitframe_plist) {
1883                 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1884
1885                 xmitframe_plist = xmitframe_plist->next;
1886
1887                 list_del_init(&pxmitframe->list);
1888
1889                 switch (pxmitframe->attrib.priority) {
1890                 case 1:
1891                 case 2:
1892                         wmmps_ac = psta->uapsd_bk&BIT(1);
1893                         break;
1894                 case 4:
1895                 case 5:
1896                         wmmps_ac = psta->uapsd_vi&BIT(1);
1897                         break;
1898                 case 6:
1899                 case 7:
1900                         wmmps_ac = psta->uapsd_vo&BIT(1);
1901                         break;
1902                 case 0:
1903                 case 3:
1904                 default:
1905                         wmmps_ac = psta->uapsd_be&BIT(1);
1906                         break;
1907                 }
1908
1909                 psta->sleepq_len--;
1910                 if (psta->sleepq_len > 0)
1911                         pxmitframe->attrib.mdata = 1;
1912                 else
1913                         pxmitframe->attrib.mdata = 0;
1914
1915                 if (wmmps_ac) {
1916                         psta->sleepq_ac_len--;
1917                         if (psta->sleepq_ac_len > 0) {
1918                                 pxmitframe->attrib.mdata = 1;
1919                                 pxmitframe->attrib.eosp = 0;
1920                         } else {
1921                                 pxmitframe->attrib.mdata = 0;
1922                                 pxmitframe->attrib.eosp = 1;
1923                         }
1924                 }
1925
1926                 pxmitframe->attrib.triggered = 1;
1927
1928                 spin_unlock_bh(&psta->sleep_q.lock);
1929                 if (rtw_hal_xmit(padapter, pxmitframe))
1930                         rtw_os_xmit_complete(padapter, pxmitframe);
1931                 spin_lock_bh(&psta->sleep_q.lock);
1932         }
1933
1934         if (psta->sleepq_len == 0) {
1935                 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1936
1937                 update_mask = BIT(0);
1938
1939                 if (psta->state&WIFI_SLEEP_STATE)
1940                         psta->state ^= WIFI_SLEEP_STATE;
1941
1942                 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1943                         psta->expire_to = pstapriv->expire_to;
1944                         psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1945                 }
1946
1947                 pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
1948         }
1949
1950         spin_unlock_bh(&psta->sleep_q.lock);
1951
1952         /* for BC/MC Frames */
1953         psta_bmc = rtw_get_bcmc_stainfo(padapter);
1954         if (!psta_bmc)
1955                 return;
1956
1957         if ((pstapriv->sta_dz_bitmap&0xfffe) == 0x0) { /* no any sta in ps mode */
1958                 spin_lock_bh(&psta_bmc->sleep_q.lock);
1959
1960                 xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
1961                 xmitframe_plist = xmitframe_phead->next;
1962
1963                 while (xmitframe_phead != xmitframe_plist) {
1964                         pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
1965
1966                         xmitframe_plist = xmitframe_plist->next;
1967
1968                         list_del_init(&pxmitframe->list);
1969
1970                         psta_bmc->sleepq_len--;
1971                         if (psta_bmc->sleepq_len > 0)
1972                                 pxmitframe->attrib.mdata = 1;
1973                         else
1974                                 pxmitframe->attrib.mdata = 0;
1975
1976                         pxmitframe->attrib.triggered = 1;
1977
1978                         spin_unlock_bh(&psta_bmc->sleep_q.lock);
1979                         if (rtw_hal_xmit(padapter, pxmitframe))
1980                                 rtw_os_xmit_complete(padapter, pxmitframe);
1981                         spin_lock_bh(&psta_bmc->sleep_q.lock);
1982                 }
1983
1984                 if (psta_bmc->sleepq_len == 0) {
1985                         pstapriv->tim_bitmap &= ~BIT(0);
1986                         pstapriv->sta_dz_bitmap &= ~BIT(0);
1987
1988                         update_mask |= BIT(1);
1989                 }
1990
1991                 spin_unlock_bh(&psta_bmc->sleep_q.lock);
1992         }
1993
1994         if (update_mask)
1995                 update_beacon(padapter, _TIM_IE_, NULL, false);
1996 }
1997
1998 void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
1999 {
2000         u8 wmmps_ac = 0;
2001         struct list_head *xmitframe_plist, *xmitframe_phead;
2002         struct xmit_frame *pxmitframe = NULL;
2003         struct sta_priv *pstapriv = &padapter->stapriv;
2004
2005         spin_lock_bh(&psta->sleep_q.lock);
2006
2007         xmitframe_phead = get_list_head(&psta->sleep_q);
2008         xmitframe_plist = xmitframe_phead->next;
2009
2010         while (xmitframe_phead != xmitframe_plist) {
2011                 pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
2012
2013                 xmitframe_plist = xmitframe_plist->next;
2014
2015                 switch (pxmitframe->attrib.priority) {
2016                 case 1:
2017                 case 2:
2018                         wmmps_ac = psta->uapsd_bk&BIT(1);
2019                         break;
2020                 case 4:
2021                 case 5:
2022                         wmmps_ac = psta->uapsd_vi&BIT(1);
2023                         break;
2024                 case 6:
2025                 case 7:
2026                         wmmps_ac = psta->uapsd_vo&BIT(1);
2027                         break;
2028                 case 0:
2029                 case 3:
2030                 default:
2031                         wmmps_ac = psta->uapsd_be&BIT(1);
2032                         break;
2033                 }
2034
2035                 if (!wmmps_ac)
2036                         continue;
2037
2038                 list_del_init(&pxmitframe->list);
2039
2040                 psta->sleepq_len--;
2041                 psta->sleepq_ac_len--;
2042
2043                 if (psta->sleepq_ac_len > 0) {
2044                         pxmitframe->attrib.mdata = 1;
2045                         pxmitframe->attrib.eosp = 0;
2046                 } else {
2047                         pxmitframe->attrib.mdata = 0;
2048                         pxmitframe->attrib.eosp = 1;
2049                 }
2050
2051                 pxmitframe->attrib.triggered = 1;
2052
2053                 if (rtw_hal_xmit(padapter, pxmitframe) == true)
2054                         rtw_os_xmit_complete(padapter, pxmitframe);
2055
2056                 if ((psta->sleepq_ac_len == 0) && (!psta->has_legacy_ac) && (wmmps_ac)) {
2057                         pstapriv->tim_bitmap &= ~BIT(psta->aid);
2058
2059                         /* update BCN for TIM IE */
2060                         update_beacon(padapter, _TIM_IE_, NULL, false);
2061                 }
2062         }
2063
2064         spin_unlock_bh(&psta->sleep_q.lock);
2065 }
2066
2067 #endif
2068
2069 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms)
2070 {
2071         sctx->timeout_ms = timeout_ms;
2072         sctx->submit_time = jiffies;
2073         init_completion(&sctx->done);
2074         sctx->status = RTW_SCTX_SUBMITTED;
2075 }
2076
2077 int rtw_sctx_wait(struct submit_ctx *sctx)
2078 {
2079         int ret = _FAIL;
2080         unsigned long expire;
2081         int status = 0;
2082
2083         expire = sctx->timeout_ms ? msecs_to_jiffies(sctx->timeout_ms) : MAX_SCHEDULE_TIMEOUT;
2084         if (!wait_for_completion_timeout(&sctx->done, expire)) {
2085                 /* timeout, do something?? */
2086                 status = RTW_SCTX_DONE_TIMEOUT;
2087                 DBG_88E("%s timeout\n", __func__);
2088         } else {
2089                 status = sctx->status;
2090         }
2091
2092         if (status == RTW_SCTX_DONE_SUCCESS)
2093                 ret = _SUCCESS;
2094
2095         return ret;
2096 }
2097
2098 static bool rtw_sctx_chk_waring_status(int status)
2099 {
2100         switch (status) {
2101         case RTW_SCTX_DONE_UNKNOWN:
2102         case RTW_SCTX_DONE_BUF_ALLOC:
2103         case RTW_SCTX_DONE_BUF_FREE:
2104
2105         case RTW_SCTX_DONE_DRV_STOP:
2106         case RTW_SCTX_DONE_DEV_REMOVE:
2107                 return true;
2108         default:
2109                 return false;
2110         }
2111 }
2112
2113 void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
2114 {
2115         if (*sctx) {
2116                 if (rtw_sctx_chk_waring_status(status))
2117                         DBG_88E("%s status:%d\n", __func__, status);
2118                 (*sctx)->status = status;
2119                 complete(&((*sctx)->done));
2120                 *sctx = NULL;
2121         }
2122 }
2123
2124 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
2125 {
2126         struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2127
2128         pack_tx_ops->submit_time = jiffies;
2129         pack_tx_ops->timeout_ms = timeout_ms;
2130         pack_tx_ops->status = RTW_SCTX_SUBMITTED;
2131
2132         return rtw_sctx_wait(pack_tx_ops);
2133 }
2134
2135 void rtw_ack_tx_done(struct xmit_priv *pxmitpriv, int status)
2136 {
2137         struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
2138
2139         if (pxmitpriv->ack_tx)
2140                 rtw_sctx_done_err(&pack_tx_ops, status);
2141         else
2142                 DBG_88E("%s ack_tx not set\n", __func__);
2143 }