drivers/net/wireless/mwifiex/tdls.c

   1 /* Marvell Wireless LAN device driver: TDLS handling
   2  *
   3  * Copyright (C) 2014, Marvell International Ltd.
   4  *
   5  * This software file (the "File") is distributed by Marvell International
   6  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   7  * (the "License").  You may use, redistribute and/or modify this File in
   8  * accordance with the terms and conditions of the License, a copy of which
   9  * is available on the worldwide web at
  10  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  11  *
  12  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  13  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  14  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  15  * this warranty disclaimer.
  16  */
  17
  18 #include "main.h"
  19 #include "wmm.h"
  20 #include "11n.h"
  21 #include "11n_rxreorder.h"
  22 #include "11ac.h"
  23
  24 #define TDLS_REQ_FIX_LEN      6
  25 #define TDLS_RESP_FIX_LEN     8
  26 #define TDLS_CONFIRM_FIX_LEN  6
  27
  28 static void
  29 mwifiex_restore_tdls_packets(struct mwifiex_private *priv, u8 *mac, u8 status)
  30 {
  31         struct mwifiex_ra_list_tbl *ra_list;
  32         struct list_head *tid_list;
  33         struct sk_buff *skb, *tmp;
  34         struct mwifiex_txinfo *tx_info;
  35         unsigned long flags;
  36         u32 tid;
  37         u8 tid_down;
  38
  39         dev_dbg(priv->adapter->dev, "%s: %pM\n", __func__, mac);
  40         spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
  41
  42         skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) {
  43                 if (!ether_addr_equal(mac, skb->data))
  44                         continue;
  45
  46                 __skb_unlink(skb, &priv->tdls_txq);
  47                 tx_info = MWIFIEX_SKB_TXCB(skb);
  48                 tid = skb->priority;
  49                 tid_down = mwifiex_wmm_downgrade_tid(priv, tid);
  50
  51                 if (status == TDLS_SETUP_COMPLETE) {
  52                         ra_list = mwifiex_wmm_get_queue_raptr(priv, tid, mac);
  53                         ra_list->tdls_link = true;
  54                         tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
  55                 } else {
  56                         tid_list = &priv->wmm.tid_tbl_ptr[tid_down].ra_list;
  57                         if (!list_empty(tid_list))
  58                                 ra_list = list_first_entry(tid_list,
  59                                               struct mwifiex_ra_list_tbl, list);
  60                         else
  61                                 ra_list = NULL;
  62                         tx_info->flags &= ~MWIFIEX_BUF_FLAG_TDLS_PKT;
  63                 }
  64
  65                 if (!ra_list) {
  66                         mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
  67                         continue;
  68                 }
  69
  70                 skb_queue_tail(&ra_list->skb_head, skb);
  71
  72                 ra_list->ba_pkt_count++;
  73                 ra_list->total_pkt_count++;
  74
  75                 if (atomic_read(&priv->wmm.highest_queued_prio) <
  76                                                        tos_to_tid_inv[tid_down])
  77                         atomic_set(&priv->wmm.highest_queued_prio,
  78                                    tos_to_tid_inv[tid_down]);
  79
  80                 atomic_inc(&priv->wmm.tx_pkts_queued);
  81         }
  82
  83         spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
  84         return;
  85 }
  86
  87 static void mwifiex_hold_tdls_packets(struct mwifiex_private *priv, u8 *mac)
  88 {
  89         struct mwifiex_ra_list_tbl *ra_list;
  90         struct list_head *ra_list_head;
  91         struct sk_buff *skb, *tmp;
  92         unsigned long flags;
  93         int i;
  94
  95         dev_dbg(priv->adapter->dev, "%s: %pM\n", __func__, mac);
  96         spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
  97
  98         for (i = 0; i < MAX_NUM_TID; i++) {
  99                 if (!list_empty(&priv->wmm.tid_tbl_ptr[i].ra_list)) {
 100                         ra_list_head = &priv->wmm.tid_tbl_ptr[i].ra_list;
 101                         list_for_each_entry(ra_list, ra_list_head, list) {
 102                                 skb_queue_walk_safe(&ra_list->skb_head, skb,
 103                                                     tmp) {
 104                                         if (!ether_addr_equal(mac, skb->data))
 105                                                 continue;
 106                                         __skb_unlink(skb, &ra_list->skb_head);
 107                                         atomic_dec(&priv->wmm.tx_pkts_queued);
 108                                         ra_list->total_pkt_count--;
 109                                         skb_queue_tail(&priv->tdls_txq, skb);
 110                                 }
 111                         }
 112                 }
 113         }
 114
 115         spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
 116         return;
 117 }
 118
 119 /* This function appends rate TLV to scan config command. */
 120 static int
 121 mwifiex_tdls_append_rates_ie(struct mwifiex_private *priv,
 122                              struct sk_buff *skb)
 123 {
 124         u8 rates[MWIFIEX_SUPPORTED_RATES], *pos;
 125         u16 rates_size, supp_rates_size, ext_rates_size;
 126
 127         memset(rates, 0, sizeof(rates));
 128         rates_size = mwifiex_get_supported_rates(priv, rates);
 129
 130         supp_rates_size = min_t(u16, rates_size, MWIFIEX_TDLS_SUPPORTED_RATES);
 131
 132         if (skb_tailroom(skb) < rates_size + 4) {
 133                 dev_err(priv->adapter->dev,
 134                         "Insuffient space while adding rates\n");
 135                 return -ENOMEM;
 136         }
 137
 138         pos = skb_put(skb, supp_rates_size + 2);
 139         *pos++ = WLAN_EID_SUPP_RATES;
 140         *pos++ = supp_rates_size;
 141         memcpy(pos, rates, supp_rates_size);
 142
 143         if (rates_size > MWIFIEX_TDLS_SUPPORTED_RATES) {
 144                 ext_rates_size = rates_size - MWIFIEX_TDLS_SUPPORTED_RATES;
 145                 pos = skb_put(skb, ext_rates_size + 2);
 146                 *pos++ = WLAN_EID_EXT_SUPP_RATES;
 147                 *pos++ = ext_rates_size;
 148                 memcpy(pos, rates + MWIFIEX_TDLS_SUPPORTED_RATES,
 149                        ext_rates_size);
 150         }
 151
 152         return 0;
 153 }
 154
 155 static void mwifiex_tdls_add_aid(struct mwifiex_private *priv,
 156                                 struct sk_buff *skb)
 157 {
 158         struct ieee_types_assoc_rsp *assoc_rsp;
 159         u8 *pos;
 160
 161         assoc_rsp = (struct ieee_types_assoc_rsp *)&priv->assoc_rsp_buf;
 162         pos = (void *)skb_put(skb, 4);
 163         *pos++ = WLAN_EID_AID;
 164         *pos++ = 2;
 165         *pos++ = le16_to_cpu(assoc_rsp->a_id);
 166
 167         return;
 168 }
 169
 170 static int mwifiex_tdls_add_vht_capab(struct mwifiex_private *priv,
 171                                       struct sk_buff *skb)
 172 {
 173         struct ieee80211_vht_cap vht_cap;
 174         u8 *pos;
 175
 176         pos = (void *)skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
 177         *pos++ = WLAN_EID_VHT_CAPABILITY;
 178         *pos++ = sizeof(struct ieee80211_vht_cap);
 179
 180         memset(&vht_cap, 0, sizeof(struct ieee80211_vht_cap));
 181
 182         mwifiex_fill_vht_cap_tlv(priv, &vht_cap, priv->curr_bss_params.band);
 183         memcpy(pos, &vht_cap, sizeof(vht_cap));
 184
 185         return 0;
 186 }
 187
 188 static int mwifiex_tdls_add_vht_oper(struct mwifiex_private *priv,
 189                                      u8 *mac, struct sk_buff *skb)
 190 {
 191         struct mwifiex_bssdescriptor *bss_desc;
 192         struct ieee80211_vht_operation *vht_oper;
 193         struct ieee80211_vht_cap *vht_cap, *ap_vht_cap = NULL;
 194         struct mwifiex_sta_node *sta_ptr;
 195         struct mwifiex_adapter *adapter = priv->adapter;
 196         u8 supp_chwd_set, peer_supp_chwd_set;
 197         u8 *pos, ap_supp_chwd_set, chan_bw;
 198         u16 mcs_map_user, mcs_map_resp, mcs_map_result;
 199         u16 mcs_user, mcs_resp, nss;
 200         u32 usr_vht_cap_info;
 201
 202         bss_desc = &priv->curr_bss_params.bss_descriptor;
 203
 204         sta_ptr = mwifiex_get_sta_entry(priv, mac);
 205         if (unlikely(!sta_ptr)) {
 206                 dev_warn(adapter->dev, "TDLS peer station not found in list\n");
 207                 return -1;
 208         }
 209
 210         if (!mwifiex_is_bss_in_11ac_mode(priv)) {
 211                 if (sta_ptr->tdls_cap.extcap.ext_capab[7] &
 212                    WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
 213                         dev_dbg(adapter->dev,
 214                                 "TDLS peer doesn't support wider bandwitdh\n");
 215                         return 0;
 216                 }
 217         } else {
 218                 ap_vht_cap = bss_desc->bcn_vht_cap;
 219         }
 220
 221         pos = (void *)skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
 222         *pos++ = WLAN_EID_VHT_OPERATION;
 223         *pos++ = sizeof(struct ieee80211_vht_operation);
 224         vht_oper = (struct ieee80211_vht_operation *)pos;
 225
 226         if (bss_desc->bss_band & BAND_A)
 227                 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
 228         else
 229                 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
 230
 231         /* find the minmum bandwith between AP/TDLS peers */
 232         vht_cap = &sta_ptr->tdls_cap.vhtcap;
 233         supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
 234         peer_supp_chwd_set =
 235                          GET_VHTCAP_CHWDSET(le32_to_cpu(vht_cap->vht_cap_info));
 236         supp_chwd_set = min_t(u8, supp_chwd_set, peer_supp_chwd_set);
 237
 238         /* We need check AP's bandwidth when TDLS_WIDER_BANDWIDTH is off */
 239
 240         if (ap_vht_cap && sta_ptr->tdls_cap.extcap.ext_capab[7] &
 241             WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
 242                 ap_supp_chwd_set =
 243                       GET_VHTCAP_CHWDSET(le32_to_cpu(ap_vht_cap->vht_cap_info));
 244                 supp_chwd_set = min_t(u8, supp_chwd_set, ap_supp_chwd_set);
 245         }
 246
 247         switch (supp_chwd_set) {
 248         case IEEE80211_VHT_CHANWIDTH_80MHZ:
 249                 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
 250                 break;
 251         case IEEE80211_VHT_CHANWIDTH_160MHZ:
 252                 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
 253                 break;
 254         case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
 255                 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
 256                 break;
 257         default:
 258                 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
 259                 break;
 260         }
 261
 262         mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
 263         mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
 264         mcs_map_result = 0;
 265
 266         for (nss = 1; nss <= 8; nss++) {
 267                 mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
 268                 mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
 269
 270                 if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
 271                     (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
 272                         SET_VHTNSSMCS(mcs_map_result, nss,
 273                                       IEEE80211_VHT_MCS_NOT_SUPPORTED);
 274                 else
 275                         SET_VHTNSSMCS(mcs_map_result, nss,
 276                                       min_t(u16, mcs_user, mcs_resp));
 277         }
 278
 279         vht_oper->basic_mcs_set = cpu_to_le16(mcs_map_result);
 280
 281         switch (vht_oper->chan_width) {
 282         case IEEE80211_VHT_CHANWIDTH_80MHZ:
 283                 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
 284                 break;
 285         case IEEE80211_VHT_CHANWIDTH_160MHZ:
 286                 chan_bw = IEEE80211_VHT_CHANWIDTH_160MHZ;
 287                 break;
 288         case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
 289                 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
 290                 break;
 291         default:
 292                 chan_bw = IEEE80211_VHT_CHANWIDTH_USE_HT;
 293                 break;
 294         }
 295         vht_oper->center_freq_seg1_idx =
 296                         mwifiex_get_center_freq_index(priv, BAND_AAC,
 297                                                       bss_desc->channel,
 298                                                       chan_bw);
 299
 300         return 0;
 301 }
 302
 303 static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
 304                                        struct sk_buff *skb)
 305 {
 306         struct ieee_types_extcap *extcap;
 307
 308         extcap = (void *)skb_put(skb, sizeof(struct ieee_types_extcap));
 309         extcap->ieee_hdr.element_id = WLAN_EID_EXT_CAPABILITY;
 310         extcap->ieee_hdr.len = 8;
 311         memset(extcap->ext_capab, 0, 8);
 312         extcap->ext_capab[4] |= WLAN_EXT_CAPA5_TDLS_ENABLED;
 313
 314         if (priv->adapter->is_hw_11ac_capable)
 315                 extcap->ext_capab[7] |= WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED;
 316 }
 317
 318 static void mwifiex_tdls_add_qos_capab(struct sk_buff *skb)
 319 {
 320         u8 *pos = (void *)skb_put(skb, 3);
 321
 322         *pos++ = WLAN_EID_QOS_CAPA;
 323         *pos++ = 1;
 324         *pos++ = MWIFIEX_TDLS_DEF_QOS_CAPAB;
 325 }
 326
 327 static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
 328                              u8 *peer, u8 action_code, u8 dialog_token,
 329                              u16 status_code, struct sk_buff *skb)
 330 {
 331         struct ieee80211_tdls_data *tf;
 332         int ret;
 333         u16 capab;
 334         struct ieee80211_ht_cap *ht_cap;
 335         u8 radio, *pos;
 336
 337         capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
 338
 339         tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
 340         memcpy(tf->da, peer, ETH_ALEN);
 341         memcpy(tf->sa, priv->curr_addr, ETH_ALEN);
 342         tf->ether_type = cpu_to_be16(ETH_P_TDLS);
 343         tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
 344
 345         switch (action_code) {
 346         case WLAN_TDLS_SETUP_REQUEST:
 347                 tf->category = WLAN_CATEGORY_TDLS;
 348                 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
 349                 skb_put(skb, sizeof(tf->u.setup_req));
 350                 tf->u.setup_req.dialog_token = dialog_token;
 351                 tf->u.setup_req.capability = cpu_to_le16(capab);
 352                 ret = mwifiex_tdls_append_rates_ie(priv, skb);
 353                 if (ret) {
 354                         dev_kfree_skb_any(skb);
 355                         return ret;
 356                 }
 357
 358                 pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
 359                 *pos++ = WLAN_EID_HT_CAPABILITY;
 360                 *pos++ = sizeof(struct ieee80211_ht_cap);
 361                 ht_cap = (void *)pos;
 362                 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 363                 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
 364                 if (ret) {
 365                         dev_kfree_skb_any(skb);
 366                         return ret;
 367                 }
 368
 369                 if (priv->adapter->is_hw_11ac_capable) {
 370                         ret = mwifiex_tdls_add_vht_capab(priv, skb);
 371                         if (ret) {
 372                                 dev_kfree_skb_any(skb);
 373                                 return ret;
 374                         }
 375                         mwifiex_tdls_add_aid(priv, skb);
 376                 }
 377
 378                 mwifiex_tdls_add_ext_capab(priv, skb);
 379                 mwifiex_tdls_add_qos_capab(skb);
 380                 break;
 381
 382         case WLAN_TDLS_SETUP_RESPONSE:
 383                 tf->category = WLAN_CATEGORY_TDLS;
 384                 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
 385                 skb_put(skb, sizeof(tf->u.setup_resp));
 386                 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
 387                 tf->u.setup_resp.dialog_token = dialog_token;
 388                 tf->u.setup_resp.capability = cpu_to_le16(capab);
 389                 ret = mwifiex_tdls_append_rates_ie(priv, skb);
 390                 if (ret) {
 391                         dev_kfree_skb_any(skb);
 392                         return ret;
 393                 }
 394
 395                 pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
 396                 *pos++ = WLAN_EID_HT_CAPABILITY;
 397                 *pos++ = sizeof(struct ieee80211_ht_cap);
 398                 ht_cap = (void *)pos;
 399                 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 400                 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
 401                 if (ret) {
 402                         dev_kfree_skb_any(skb);
 403                         return ret;
 404                 }
 405
 406                 if (priv->adapter->is_hw_11ac_capable) {
 407                         ret = mwifiex_tdls_add_vht_capab(priv, skb);
 408                         if (ret) {
 409                                 dev_kfree_skb_any(skb);
 410                                 return ret;
 411                         }
 412                         mwifiex_tdls_add_aid(priv, skb);
 413                 }
 414
 415                 mwifiex_tdls_add_ext_capab(priv, skb);
 416                 mwifiex_tdls_add_qos_capab(skb);
 417                 break;
 418
 419         case WLAN_TDLS_SETUP_CONFIRM:
 420                 tf->category = WLAN_CATEGORY_TDLS;
 421                 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
 422                 skb_put(skb, sizeof(tf->u.setup_cfm));
 423                 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
 424                 tf->u.setup_cfm.dialog_token = dialog_token;
 425                 if (priv->adapter->is_hw_11ac_capable) {
 426                         ret = mwifiex_tdls_add_vht_oper(priv, peer, skb);
 427                         if (ret) {
 428                                 dev_kfree_skb_any(skb);
 429                                 return ret;
 430                         }
 431                 }
 432                 break;
 433
 434         case WLAN_TDLS_TEARDOWN:
 435                 tf->category = WLAN_CATEGORY_TDLS;
 436                 tf->action_code = WLAN_TDLS_TEARDOWN;
 437                 skb_put(skb, sizeof(tf->u.teardown));
 438                 tf->u.teardown.reason_code = cpu_to_le16(status_code);
 439                 break;
 440
 441         case WLAN_TDLS_DISCOVERY_REQUEST:
 442                 tf->category = WLAN_CATEGORY_TDLS;
 443                 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
 444                 skb_put(skb, sizeof(tf->u.discover_req));
 445                 tf->u.discover_req.dialog_token = dialog_token;
 446                 break;
 447         default:
 448                 dev_err(priv->adapter->dev, "Unknown TDLS frame type.\n");
 449                 return -EINVAL;
 450         }
 451
 452         return 0;
 453 }
 454
 455 static void
 456 mwifiex_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, u8 *peer, u8 *bssid)
 457 {
 458         struct ieee80211_tdls_lnkie *lnkid;
 459
 460         lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
 461         lnkid->ie_type = WLAN_EID_LINK_ID;
 462         lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) -
 463                         sizeof(struct ieee_types_header);
 464
 465         memcpy(lnkid->bssid, bssid, ETH_ALEN);
 466         memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
 467         memcpy(lnkid->resp_sta, peer, ETH_ALEN);
 468 }
 469
 470 int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv,
 471                                  u8 *peer, u8 action_code, u8 dialog_token,
 472                                  u16 status_code, const u8 *extra_ies,
 473                                  size_t extra_ies_len)
 474 {
 475         struct sk_buff *skb;
 476         struct mwifiex_txinfo *tx_info;
 477         struct timeval tv;
 478         int ret;
 479         u16 skb_len;
 480
 481         skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
 482                   max(sizeof(struct ieee80211_mgmt),
 483                       sizeof(struct ieee80211_tdls_data)) +
 484                   MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 485                   MWIFIEX_SUPPORTED_RATES +
 486                   3 + /* Qos Info */
 487                   sizeof(struct ieee_types_extcap) +
 488                   sizeof(struct ieee80211_ht_cap) +
 489                   sizeof(struct ieee_types_bss_co_2040) +
 490                   sizeof(struct ieee80211_ht_operation) +
 491                   sizeof(struct ieee80211_tdls_lnkie) +
 492                   extra_ies_len;
 493
 494         if (priv->adapter->is_hw_11ac_capable)
 495                 skb_len += sizeof(struct ieee_types_vht_cap) +
 496                            sizeof(struct ieee_types_vht_oper) +
 497                            sizeof(struct ieee_types_aid);
 498
 499         skb = dev_alloc_skb(skb_len);
 500         if (!skb) {
 501                 dev_err(priv->adapter->dev,
 502                         "allocate skb failed for management frame\n");
 503                 return -ENOMEM;
 504         }
 505         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
 506
 507         switch (action_code) {
 508         case WLAN_TDLS_SETUP_REQUEST:
 509         case WLAN_TDLS_SETUP_CONFIRM:
 510         case WLAN_TDLS_TEARDOWN:
 511         case WLAN_TDLS_DISCOVERY_REQUEST:
 512                 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
 513                                                    dialog_token, status_code,
 514                                                    skb);
 515                 if (ret) {
 516                         dev_kfree_skb_any(skb);
 517                         return ret;
 518                 }
 519                 if (extra_ies_len)
 520                         memcpy(skb_put(skb, extra_ies_len), extra_ies,
 521                                extra_ies_len);
 522                 mwifiex_tdls_add_link_ie(skb, priv->curr_addr, peer,
 523                                          priv->cfg_bssid);
 524                 break;
 525         case WLAN_TDLS_SETUP_RESPONSE:
 526                 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
 527                                                    dialog_token, status_code,
 528                                                    skb);
 529                 if (ret) {
 530                         dev_kfree_skb_any(skb);
 531                         return ret;
 532                 }
 533                 if (extra_ies_len)
 534                         memcpy(skb_put(skb, extra_ies_len), extra_ies,
 535                                extra_ies_len);
 536                 mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
 537                                          priv->cfg_bssid);
 538                 break;
 539         }
 540
 541         switch (action_code) {
 542         case WLAN_TDLS_SETUP_REQUEST:
 543         case WLAN_TDLS_SETUP_RESPONSE:
 544                 skb->priority = MWIFIEX_PRIO_BK;
 545                 break;
 546         default:
 547                 skb->priority = MWIFIEX_PRIO_VI;
 548                 break;
 549         }
 550
 551         tx_info = MWIFIEX_SKB_TXCB(skb);
 552         tx_info->bss_num = priv->bss_num;
 553         tx_info->bss_type = priv->bss_type;
 554
 555         do_gettimeofday(&tv);
 556         skb->tstamp = timeval_to_ktime(tv);
 557         mwifiex_queue_tx_pkt(priv, skb);
 558
 559         return 0;
 560 }
 561
 562 static int
 563 mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv, u8 *peer,
 564                                     u8 action_code, u8 dialog_token,
 565                                     u16 status_code, struct sk_buff *skb)
 566 {
 567         struct ieee80211_mgmt *mgmt;
 568         u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 569         int ret;
 570         u16 capab;
 571         struct ieee80211_ht_cap *ht_cap;
 572         u8 radio, *pos;
 573
 574         capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
 575
 576         mgmt = (void *)skb_put(skb, offsetof(struct ieee80211_mgmt, u));
 577
 578         memset(mgmt, 0, 24);
 579         memcpy(mgmt->da, peer, ETH_ALEN);
 580         memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
 581         memcpy(mgmt->bssid, priv->cfg_bssid, ETH_ALEN);
 582         mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 583                                           IEEE80211_STYPE_ACTION);
 584
 585         /* add address 4 */
 586         pos = skb_put(skb, ETH_ALEN);
 587
 588         switch (action_code) {
 589         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
 590                 skb_put(skb, sizeof(mgmt->u.action.u.tdls_discover_resp) + 1);
 591                 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
 592                 mgmt->u.action.u.tdls_discover_resp.action_code =
 593                                               WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
 594                 mgmt->u.action.u.tdls_discover_resp.dialog_token =
 595                                                                    dialog_token;
 596                 mgmt->u.action.u.tdls_discover_resp.capability =
 597                                                              cpu_to_le16(capab);
 598                 /* move back for addr4 */
 599                 memmove(pos + ETH_ALEN, &mgmt->u.action.category,
 600                         sizeof(mgmt->u.action.u.tdls_discover_resp));
 601                 /* init address 4 */
 602                 memcpy(pos, bc_addr, ETH_ALEN);
 603
 604                 ret = mwifiex_tdls_append_rates_ie(priv, skb);
 605                 if (ret) {
 606                         dev_kfree_skb_any(skb);
 607                         return ret;
 608                 }
 609
 610                 pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
 611                 *pos++ = WLAN_EID_HT_CAPABILITY;
 612                 *pos++ = sizeof(struct ieee80211_ht_cap);
 613                 ht_cap = (void *)pos;
 614                 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 615                 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
 616                 if (ret) {
 617                         dev_kfree_skb_any(skb);
 618                         return ret;
 619                 }
 620
 621                 if (priv->adapter->is_hw_11ac_capable) {
 622                         ret = mwifiex_tdls_add_vht_capab(priv, skb);
 623                         if (ret) {
 624                                 dev_kfree_skb_any(skb);
 625                                 return ret;
 626                         }
 627                         mwifiex_tdls_add_aid(priv, skb);
 628                 }
 629
 630                 mwifiex_tdls_add_ext_capab(priv, skb);
 631                 mwifiex_tdls_add_qos_capab(skb);
 632                 break;
 633         default:
 634                 dev_err(priv->adapter->dev, "Unknown TDLS action frame type\n");
 635                 return -EINVAL;
 636         }
 637
 638         return 0;
 639 }
 640
 641 int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv,
 642                                  u8 *peer, u8 action_code, u8 dialog_token,
 643                                  u16 status_code, const u8 *extra_ies,
 644                                  size_t extra_ies_len)
 645 {
 646         struct sk_buff *skb;
 647         struct mwifiex_txinfo *tx_info;
 648         struct timeval tv;
 649         u8 *pos;
 650         u32 pkt_type, tx_control;
 651         u16 pkt_len, skb_len;
 652
 653         skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
 654                   max(sizeof(struct ieee80211_mgmt),
 655                       sizeof(struct ieee80211_tdls_data)) +
 656                   MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 657                   MWIFIEX_SUPPORTED_RATES +
 658                   sizeof(struct ieee_types_extcap) +
 659                   sizeof(struct ieee80211_ht_cap) +
 660                   sizeof(struct ieee_types_bss_co_2040) +
 661                   sizeof(struct ieee80211_ht_operation) +
 662                   sizeof(struct ieee80211_tdls_lnkie) +
 663                   extra_ies_len +
 664                   3 + /* Qos Info */
 665                   ETH_ALEN; /* Address4 */
 666
 667         if (priv->adapter->is_hw_11ac_capable)
 668                 skb_len += sizeof(struct ieee_types_vht_cap) +
 669                            sizeof(struct ieee_types_vht_oper) +
 670                            sizeof(struct ieee_types_aid);
 671
 672         skb = dev_alloc_skb(skb_len);
 673         if (!skb) {
 674                 dev_err(priv->adapter->dev,
 675                         "allocate skb failed for management frame\n");
 676                 return -ENOMEM;
 677         }
 678
 679         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
 680
 681         pkt_type = PKT_TYPE_MGMT;
 682         tx_control = 0;
 683         pos = skb_put(skb, MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 684         memset(pos, 0, MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 685         memcpy(pos, &pkt_type, sizeof(pkt_type));
 686         memcpy(pos + sizeof(pkt_type), &tx_control, sizeof(tx_control));
 687
 688         if (mwifiex_construct_tdls_action_frame(priv, peer, action_code,
 689                                                 dialog_token, status_code,
 690                                                 skb)) {
 691                 dev_kfree_skb_any(skb);
 692                 return -EINVAL;
 693         }
 694
 695         if (extra_ies_len)
 696                 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
 697
 698         /* the TDLS link IE is always added last we are the responder */
 699
 700         mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
 701                                  priv->cfg_bssid);
 702
 703         skb->priority = MWIFIEX_PRIO_VI;
 704
 705         tx_info = MWIFIEX_SKB_TXCB(skb);
 706         tx_info->bss_num = priv->bss_num;
 707         tx_info->bss_type = priv->bss_type;
 708         tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
 709
 710         pkt_len = skb->len - MWIFIEX_MGMT_FRAME_HEADER_SIZE - sizeof(pkt_len);
 711         memcpy(skb->data + MWIFIEX_MGMT_FRAME_HEADER_SIZE, &pkt_len,
 712                sizeof(pkt_len));
 713         do_gettimeofday(&tv);
 714         skb->tstamp = timeval_to_ktime(tv);
 715         mwifiex_queue_tx_pkt(priv, skb);
 716
 717         return 0;
 718 }
 719
 720 /* This function process tdls action frame from peer.
 721  * Peer capabilities are stored into station node structure.
 722  */
 723 void mwifiex_process_tdls_action_frame(struct mwifiex_private *priv,
 724                                        u8 *buf, int len)
 725 {
 726         struct mwifiex_sta_node *sta_ptr;
 727         u8 *peer, *pos, *end;
 728         u8 i, action, basic;
 729         int ie_len = 0;
 730
 731         if (len < (sizeof(struct ethhdr) + 3))
 732                 return;
 733         if (*(buf + sizeof(struct ethhdr)) != WLAN_TDLS_SNAP_RFTYPE)
 734                 return;
 735         if (*(buf + sizeof(struct ethhdr) + 1) != WLAN_CATEGORY_TDLS)
 736                 return;
 737
 738         peer = buf + ETH_ALEN;
 739         action = *(buf + sizeof(struct ethhdr) + 2);
 740
 741         /* just handle TDLS setup request/response/confirm */
 742         if (action > WLAN_TDLS_SETUP_CONFIRM)
 743                 return;
 744
 745         dev_dbg(priv->adapter->dev,
 746                 "rx:tdls action: peer=%pM, action=%d\n", peer, action);
 747
 748         sta_ptr = mwifiex_add_sta_entry(priv, peer);
 749         if (!sta_ptr)
 750                 return;
 751
 752         switch (action) {
 753         case WLAN_TDLS_SETUP_REQUEST:
 754                 if (len < (sizeof(struct ethhdr) + TDLS_REQ_FIX_LEN))
 755                         return;
 756
 757                 pos = buf + sizeof(struct ethhdr) + 4;
 758                 /* payload 1+ category 1 + action 1 + dialog 1 */
 759                 sta_ptr->tdls_cap.capab = cpu_to_le16(*(u16 *)pos);
 760                 ie_len = len - sizeof(struct ethhdr) - TDLS_REQ_FIX_LEN;
 761                 pos += 2;
 762                 break;
 763
 764         case WLAN_TDLS_SETUP_RESPONSE:
 765                 if (len < (sizeof(struct ethhdr) + TDLS_RESP_FIX_LEN))
 766                         return;
 767                 /* payload 1+ category 1 + action 1 + dialog 1 + status code 2*/
 768                 pos = buf + sizeof(struct ethhdr) + 6;
 769                 sta_ptr->tdls_cap.capab = cpu_to_le16(*(u16 *)pos);
 770                 ie_len = len - sizeof(struct ethhdr) - TDLS_RESP_FIX_LEN;
 771                 pos += 2;
 772                 break;
 773
 774         case WLAN_TDLS_SETUP_CONFIRM:
 775                 if (len < (sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN))
 776                         return;
 777                 pos = buf + sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN;
 778                 ie_len = len - sizeof(struct ethhdr) - TDLS_CONFIRM_FIX_LEN;
 779                 break;
 780         default:
 781                 dev_warn(priv->adapter->dev, "Unknown TDLS frame type.\n");
 782                 return;
 783         }
 784
 785         for (end = pos + ie_len; pos + 1 < end; pos += 2 + pos[1]) {
 786                 if (pos + 2 + pos[1] > end)
 787                         break;
 788
 789                 switch (*pos) {
 790                 case WLAN_EID_SUPP_RATES:
 791                         sta_ptr->tdls_cap.rates_len = pos[1];
 792                         for (i = 0; i < pos[1]; i++)
 793                                 sta_ptr->tdls_cap.rates[i] = pos[i + 2];
 794                         break;
 795
 796                 case WLAN_EID_EXT_SUPP_RATES:
 797                         basic = sta_ptr->tdls_cap.rates_len;
 798                         for (i = 0; i < pos[1]; i++)
 799                                 sta_ptr->tdls_cap.rates[basic + i] = pos[i + 2];
 800                         sta_ptr->tdls_cap.rates_len += pos[1];
 801                         break;
 802                 case WLAN_EID_HT_CAPABILITY:
 803                         memcpy((u8 *)&sta_ptr->tdls_cap.ht_capb, pos,
 804                                sizeof(struct ieee80211_ht_cap));
 805                         sta_ptr->is_11n_enabled = 1;
 806                         break;
 807                 case WLAN_EID_HT_OPERATION:
 808                         memcpy(&sta_ptr->tdls_cap.ht_oper, pos,
 809                                sizeof(struct ieee80211_ht_operation));
 810                         break;
 811                 case WLAN_EID_BSS_COEX_2040:
 812                         sta_ptr->tdls_cap.coex_2040 = pos[2];
 813                         break;
 814                 case WLAN_EID_EXT_CAPABILITY:
 815                         memcpy((u8 *)&sta_ptr->tdls_cap.extcap, pos,
 816                                sizeof(struct ieee_types_header) +
 817                                min_t(u8, pos[1], 8));
 818                         break;
 819                 case WLAN_EID_RSN:
 820                         memcpy((u8 *)&sta_ptr->tdls_cap.rsn_ie, pos,
 821                                sizeof(struct ieee_types_header) + pos[1]);
 822                         break;
 823                 case WLAN_EID_QOS_CAPA:
 824                         sta_ptr->tdls_cap.qos_info = pos[2];
 825                         break;
 826                 case WLAN_EID_VHT_OPERATION:
 827                         if (priv->adapter->is_hw_11ac_capable)
 828                                 memcpy(&sta_ptr->tdls_cap.vhtoper, pos,
 829                                        sizeof(struct ieee80211_vht_operation));
 830                         break;
 831                 case WLAN_EID_VHT_CAPABILITY:
 832                         if (priv->adapter->is_hw_11ac_capable) {
 833                                 memcpy((u8 *)&sta_ptr->tdls_cap.vhtcap, pos,
 834                                        sizeof(struct ieee80211_vht_cap));
 835                                 sta_ptr->is_11ac_enabled = 1;
 836                         }
 837                         break;
 838                 case WLAN_EID_AID:
 839                         if (priv->adapter->is_hw_11ac_capable)
 840                                 sta_ptr->tdls_cap.aid =
 841                                               le16_to_cpu(*(__le16 *)(pos + 2));
 842                 default:
 843                         break;
 844                 }
 845         }
 846
 847         return;
 848 }
 849
 850 static int
 851 mwifiex_tdls_process_config_link(struct mwifiex_private *priv, u8 *peer)
 852 {
 853         struct mwifiex_sta_node *sta_ptr;
 854         struct mwifiex_ds_tdls_oper tdls_oper;
 855
 856         memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
 857         sta_ptr = mwifiex_get_sta_entry(priv, peer);
 858
 859         if (!sta_ptr || sta_ptr->tdls_status == TDLS_SETUP_FAILURE) {
 860                 dev_err(priv->adapter->dev,
 861                         "link absent for peer %pM; cannot config\n", peer);
 862                 return -EINVAL;
 863         }
 864
 865         memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
 866         tdls_oper.tdls_action = MWIFIEX_TDLS_CONFIG_LINK;
 867         return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
 868                                 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
 869 }
 870
 871 static int
 872 mwifiex_tdls_process_create_link(struct mwifiex_private *priv, u8 *peer)
 873 {
 874         struct mwifiex_sta_node *sta_ptr;
 875         struct mwifiex_ds_tdls_oper tdls_oper;
 876
 877         memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
 878         sta_ptr = mwifiex_get_sta_entry(priv, peer);
 879
 880         if (sta_ptr && sta_ptr->tdls_status == TDLS_SETUP_INPROGRESS) {
 881                 dev_dbg(priv->adapter->dev,
 882                         "Setup already in progress for peer %pM\n", peer);
 883                 return 0;
 884         }
 885
 886         sta_ptr = mwifiex_add_sta_entry(priv, peer);
 887         if (!sta_ptr)
 888                 return -ENOMEM;
 889
 890         sta_ptr->tdls_status = TDLS_SETUP_INPROGRESS;
 891         mwifiex_hold_tdls_packets(priv, peer);
 892         memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
 893         tdls_oper.tdls_action = MWIFIEX_TDLS_CREATE_LINK;
 894         return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
 895                                 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
 896 }
 897
 898 static int
 899 mwifiex_tdls_process_disable_link(struct mwifiex_private *priv, u8 *peer)
 900 {
 901         struct mwifiex_sta_node *sta_ptr;
 902         struct mwifiex_ds_tdls_oper tdls_oper;
 903         unsigned long flags;
 904
 905         memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
 906         sta_ptr = mwifiex_get_sta_entry(priv, peer);
 907
 908         if (sta_ptr) {
 909                 if (sta_ptr->is_11n_enabled) {
 910                         mwifiex_11n_cleanup_reorder_tbl(priv);
 911                         spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
 912                                           flags);
 913                         mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
 914                         spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
 915                                                flags);
 916                 }
 917                 mwifiex_del_sta_entry(priv, peer);
 918         }
 919
 920         mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
 921         memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
 922         tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
 923         return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
 924                                 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
 925 }
 926
 927 static int
 928 mwifiex_tdls_process_enable_link(struct mwifiex_private *priv, u8 *peer)
 929 {
 930         struct mwifiex_sta_node *sta_ptr;
 931         struct ieee80211_mcs_info mcs;
 932         unsigned long flags;
 933         int i;
 934
 935         sta_ptr = mwifiex_get_sta_entry(priv, peer);
 936
 937         if (sta_ptr && (sta_ptr->tdls_status != TDLS_SETUP_FAILURE)) {
 938                 dev_dbg(priv->adapter->dev,
 939                         "tdls: enable link %pM success\n", peer);
 940
 941                 sta_ptr->tdls_status = TDLS_SETUP_COMPLETE;
 942
 943                 mcs = sta_ptr->tdls_cap.ht_capb.mcs;
 944                 if (mcs.rx_mask[0] != 0xff)
 945                         sta_ptr->is_11n_enabled = true;
 946                 if (sta_ptr->is_11n_enabled) {
 947                         if (le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info) &
 948                             IEEE80211_HT_CAP_MAX_AMSDU)
 949                                 sta_ptr->max_amsdu =
 950                                         MWIFIEX_TX_DATA_BUF_SIZE_8K;
 951                         else
 952                                 sta_ptr->max_amsdu =
 953                                         MWIFIEX_TX_DATA_BUF_SIZE_4K;
 954
 955                         for (i = 0; i < MAX_NUM_TID; i++)
 956                                 sta_ptr->ampdu_sta[i] =
 957                                               priv->aggr_prio_tbl[i].ampdu_user;
 958                 } else {
 959                         for (i = 0; i < MAX_NUM_TID; i++)
 960                                 sta_ptr->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
 961                 }
 962
 963                 memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
 964                 mwifiex_restore_tdls_packets(priv, peer, TDLS_SETUP_COMPLETE);
 965         } else {
 966                 dev_dbg(priv->adapter->dev,
 967                         "tdls: enable link %pM failed\n", peer);
 968                 if (sta_ptr) {
 969                         mwifiex_11n_cleanup_reorder_tbl(priv);
 970                         spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
 971                                           flags);
 972                         mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
 973                         spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
 974                                                flags);
 975                         mwifiex_del_sta_entry(priv, peer);
 976                 }
 977                 mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
 978
 979                 return -1;
 980         }
 981
 982         return 0;
 983 }
 984
 985 int mwifiex_tdls_oper(struct mwifiex_private *priv, u8 *peer, u8 action)
 986 {
 987         switch (action) {
 988         case MWIFIEX_TDLS_ENABLE_LINK:
 989                 return mwifiex_tdls_process_enable_link(priv, peer);
 990         case MWIFIEX_TDLS_DISABLE_LINK:
 991                 return mwifiex_tdls_process_disable_link(priv, peer);
 992         case MWIFIEX_TDLS_CREATE_LINK:
 993                 return mwifiex_tdls_process_create_link(priv, peer);
 994         case MWIFIEX_TDLS_CONFIG_LINK:
 995                 return mwifiex_tdls_process_config_link(priv, peer);
 996         }
 997         return 0;
 998 }
 999
1000 int mwifiex_get_tdls_link_status(struct mwifiex_private *priv, u8 *mac)
1001 {
1002         struct mwifiex_sta_node *sta_ptr;
1003
1004         sta_ptr = mwifiex_get_sta_entry(priv, mac);
1005         if (sta_ptr)
1006                 return sta_ptr->tdls_status;
1007
1008         return TDLS_NOT_SETUP;
1009 }
1010
1011 void mwifiex_disable_all_tdls_links(struct mwifiex_private *priv)
1012 {
1013         struct mwifiex_sta_node *sta_ptr;
1014         struct mwifiex_ds_tdls_oper tdls_oper;
1015         unsigned long flags;
1016
1017         if (list_empty(&priv->sta_list))
1018                 return;
1019
1020         list_for_each_entry(sta_ptr, &priv->sta_list, list) {
1021                 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1022
1023                 if (sta_ptr->is_11n_enabled) {
1024                         mwifiex_11n_cleanup_reorder_tbl(priv);
1025                         spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
1026                                           flags);
1027                         mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1028                         spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
1029                                                flags);
1030                 }
1031
1032                 mwifiex_restore_tdls_packets(priv, sta_ptr->mac_addr,
1033                                              TDLS_LINK_TEARDOWN);
1034                 memcpy(&tdls_oper.peer_mac, sta_ptr->mac_addr, ETH_ALEN);
1035                 tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
1036                 if (mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1037                                      HostCmd_ACT_GEN_SET, 0, &tdls_oper, false))
1038                         dev_warn(priv->adapter->dev,
1039                                  "Disable link failed for TDLS peer %pM",
1040                                  sta_ptr->mac_addr);
1041         }
1042
1043         mwifiex_del_all_sta_list(priv);
1044 }