2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <net/mac80211.h>
21 #include <linux/etherdevice.h>
39 static struct ieee80211_rate ath10k_rates[] = {
41 .hw_value = ATH10K_HW_RATE_CCK_LP_1M },
43 .hw_value = ATH10K_HW_RATE_CCK_LP_2M,
44 .hw_value_short = ATH10K_HW_RATE_CCK_SP_2M,
45 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
47 .hw_value = ATH10K_HW_RATE_CCK_LP_5_5M,
48 .hw_value_short = ATH10K_HW_RATE_CCK_SP_5_5M,
49 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
51 .hw_value = ATH10K_HW_RATE_CCK_LP_11M,
52 .hw_value_short = ATH10K_HW_RATE_CCK_SP_11M,
53 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
55 { .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
56 { .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
57 { .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
58 { .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
59 { .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
60 { .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
61 { .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
62 { .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
65 #define ATH10K_MAC_FIRST_OFDM_RATE_IDX 4
67 #define ath10k_a_rates (ath10k_rates + ATH10K_MAC_FIRST_OFDM_RATE_IDX)
68 #define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - \
69 ATH10K_MAC_FIRST_OFDM_RATE_IDX)
70 #define ath10k_g_rates (ath10k_rates + 0)
71 #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
73 static bool ath10k_mac_bitrate_is_cck(int bitrate)
86 static u8 ath10k_mac_bitrate_to_rate(int bitrate)
88 return DIV_ROUND_UP(bitrate, 5) |
89 (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
92 u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
95 const struct ieee80211_rate *rate;
98 for (i = 0; i < sband->n_bitrates; i++) {
99 rate = &sband->bitrates[i];
101 if (rate->hw_value == hw_rate)
103 else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
104 rate->hw_value_short == hw_rate)
111 u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
116 for (i = 0; i < sband->n_bitrates; i++)
117 if (sband->bitrates[i].bitrate == bitrate)
123 static int ath10k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
125 switch ((mcs_map >> (2 * nss)) & 0x3) {
126 case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
127 case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
128 case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
134 ath10k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
138 for (nss = IEEE80211_HT_MCS_MASK_LEN - 1; nss >= 0; nss--)
139 if (ht_mcs_mask[nss])
146 ath10k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
150 for (nss = NL80211_VHT_NSS_MAX - 1; nss >= 0; nss--)
151 if (vht_mcs_mask[nss])
161 static int ath10k_send_key(struct ath10k_vif *arvif,
162 struct ieee80211_key_conf *key,
163 enum set_key_cmd cmd,
164 const u8 *macaddr, u32 flags)
166 struct ath10k *ar = arvif->ar;
167 struct wmi_vdev_install_key_arg arg = {
168 .vdev_id = arvif->vdev_id,
169 .key_idx = key->keyidx,
170 .key_len = key->keylen,
171 .key_data = key->key,
176 lockdep_assert_held(&arvif->ar->conf_mutex);
178 switch (key->cipher) {
179 case WLAN_CIPHER_SUITE_CCMP:
180 arg.key_cipher = WMI_CIPHER_AES_CCM;
181 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
183 case WLAN_CIPHER_SUITE_TKIP:
184 arg.key_cipher = WMI_CIPHER_TKIP;
185 arg.key_txmic_len = 8;
186 arg.key_rxmic_len = 8;
188 case WLAN_CIPHER_SUITE_WEP40:
189 case WLAN_CIPHER_SUITE_WEP104:
190 arg.key_cipher = WMI_CIPHER_WEP;
192 case WLAN_CIPHER_SUITE_AES_CMAC:
196 ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
200 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
201 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
203 if (cmd == DISABLE_KEY) {
204 arg.key_cipher = WMI_CIPHER_NONE;
208 return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
211 static int ath10k_install_key(struct ath10k_vif *arvif,
212 struct ieee80211_key_conf *key,
213 enum set_key_cmd cmd,
214 const u8 *macaddr, u32 flags)
216 struct ath10k *ar = arvif->ar;
218 unsigned long time_left;
220 lockdep_assert_held(&ar->conf_mutex);
222 reinit_completion(&ar->install_key_done);
224 if (arvif->nohwcrypt)
227 ret = ath10k_send_key(arvif, key, cmd, macaddr, flags);
231 time_left = wait_for_completion_timeout(&ar->install_key_done, 3 * HZ);
238 static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
241 struct ath10k *ar = arvif->ar;
242 struct ath10k_peer *peer;
247 lockdep_assert_held(&ar->conf_mutex);
249 if (WARN_ON(arvif->vif->type != NL80211_IFTYPE_AP &&
250 arvif->vif->type != NL80211_IFTYPE_ADHOC))
253 spin_lock_bh(&ar->data_lock);
254 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
255 spin_unlock_bh(&ar->data_lock);
260 for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
261 if (arvif->wep_keys[i] == NULL)
264 switch (arvif->vif->type) {
265 case NL80211_IFTYPE_AP:
266 flags = WMI_KEY_PAIRWISE;
268 if (arvif->def_wep_key_idx == i)
269 flags |= WMI_KEY_TX_USAGE;
271 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
272 SET_KEY, addr, flags);
276 case NL80211_IFTYPE_ADHOC:
277 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
283 ret = ath10k_install_key(arvif, arvif->wep_keys[i],
284 SET_KEY, addr, WMI_KEY_GROUP);
293 spin_lock_bh(&ar->data_lock);
294 peer->keys[i] = arvif->wep_keys[i];
295 spin_unlock_bh(&ar->data_lock);
298 /* In some cases (notably with static WEP IBSS with multiple keys)
299 * multicast Tx becomes broken. Both pairwise and groupwise keys are
300 * installed already. Using WMI_KEY_TX_USAGE in different combinations
301 * didn't seem help. Using def_keyid vdev parameter seems to be
302 * effective so use that.
304 * FIXME: Revisit. Perhaps this can be done in a less hacky way.
306 if (arvif->vif->type != NL80211_IFTYPE_ADHOC)
309 if (arvif->def_wep_key_idx == -1)
312 ret = ath10k_wmi_vdev_set_param(arvif->ar,
314 arvif->ar->wmi.vdev_param->def_keyid,
315 arvif->def_wep_key_idx);
317 ath10k_warn(ar, "failed to re-set def wpa key idxon vdev %i: %d\n",
318 arvif->vdev_id, ret);
325 static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
328 struct ath10k *ar = arvif->ar;
329 struct ath10k_peer *peer;
335 lockdep_assert_held(&ar->conf_mutex);
337 spin_lock_bh(&ar->data_lock);
338 peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
339 spin_unlock_bh(&ar->data_lock);
344 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
345 if (peer->keys[i] == NULL)
348 /* key flags are not required to delete the key */
349 ret = ath10k_install_key(arvif, peer->keys[i],
350 DISABLE_KEY, addr, flags);
351 if (ret < 0 && first_errno == 0)
355 ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
358 spin_lock_bh(&ar->data_lock);
359 peer->keys[i] = NULL;
360 spin_unlock_bh(&ar->data_lock);
366 bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
369 struct ath10k_peer *peer;
372 lockdep_assert_held(&ar->data_lock);
374 /* We don't know which vdev this peer belongs to,
375 * since WMI doesn't give us that information.
377 * FIXME: multi-bss needs to be handled.
379 peer = ath10k_peer_find(ar, 0, addr);
383 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
384 if (peer->keys[i] && peer->keys[i]->keyidx == keyidx)
391 static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
392 struct ieee80211_key_conf *key)
394 struct ath10k *ar = arvif->ar;
395 struct ath10k_peer *peer;
402 lockdep_assert_held(&ar->conf_mutex);
405 /* since ath10k_install_key we can't hold data_lock all the
406 * time, so we try to remove the keys incrementally */
407 spin_lock_bh(&ar->data_lock);
409 list_for_each_entry(peer, &ar->peers, list) {
410 for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
411 if (peer->keys[i] == key) {
412 ether_addr_copy(addr, peer->addr);
413 peer->keys[i] = NULL;
418 if (i < ARRAY_SIZE(peer->keys))
421 spin_unlock_bh(&ar->data_lock);
423 if (i == ARRAY_SIZE(peer->keys))
425 /* key flags are not required to delete the key */
426 ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr, flags);
427 if (ret < 0 && first_errno == 0)
431 ath10k_warn(ar, "failed to remove key for %pM: %d\n",
438 static int ath10k_mac_vif_update_wep_key(struct ath10k_vif *arvif,
439 struct ieee80211_key_conf *key)
441 struct ath10k *ar = arvif->ar;
442 struct ath10k_peer *peer;
445 lockdep_assert_held(&ar->conf_mutex);
447 list_for_each_entry(peer, &ar->peers, list) {
448 if (!memcmp(peer->addr, arvif->vif->addr, ETH_ALEN))
451 if (!memcmp(peer->addr, arvif->bssid, ETH_ALEN))
454 if (peer->keys[key->keyidx] == key)
457 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vif vdev %i update key %i needs update\n",
458 arvif->vdev_id, key->keyidx);
460 ret = ath10k_install_peer_wep_keys(arvif, peer->addr);
462 ath10k_warn(ar, "failed to update wep keys on vdev %i for peer %pM: %d\n",
463 arvif->vdev_id, peer->addr, ret);
471 /*********************/
472 /* General utilities */
473 /*********************/
475 static inline enum wmi_phy_mode
476 chan_to_phymode(const struct cfg80211_chan_def *chandef)
478 enum wmi_phy_mode phymode = MODE_UNKNOWN;
480 switch (chandef->chan->band) {
481 case IEEE80211_BAND_2GHZ:
482 switch (chandef->width) {
483 case NL80211_CHAN_WIDTH_20_NOHT:
484 if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
489 case NL80211_CHAN_WIDTH_20:
490 phymode = MODE_11NG_HT20;
492 case NL80211_CHAN_WIDTH_40:
493 phymode = MODE_11NG_HT40;
495 case NL80211_CHAN_WIDTH_5:
496 case NL80211_CHAN_WIDTH_10:
497 case NL80211_CHAN_WIDTH_80:
498 case NL80211_CHAN_WIDTH_80P80:
499 case NL80211_CHAN_WIDTH_160:
500 phymode = MODE_UNKNOWN;
504 case IEEE80211_BAND_5GHZ:
505 switch (chandef->width) {
506 case NL80211_CHAN_WIDTH_20_NOHT:
509 case NL80211_CHAN_WIDTH_20:
510 phymode = MODE_11NA_HT20;
512 case NL80211_CHAN_WIDTH_40:
513 phymode = MODE_11NA_HT40;
515 case NL80211_CHAN_WIDTH_80:
516 phymode = MODE_11AC_VHT80;
518 case NL80211_CHAN_WIDTH_5:
519 case NL80211_CHAN_WIDTH_10:
520 case NL80211_CHAN_WIDTH_80P80:
521 case NL80211_CHAN_WIDTH_160:
522 phymode = MODE_UNKNOWN;
530 WARN_ON(phymode == MODE_UNKNOWN);
534 static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
537 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
538 * 0 for no restriction
547 switch (mpdudensity) {
553 /* Our lower layer calculations limit our precision to
569 int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
570 struct cfg80211_chan_def *def)
572 struct ieee80211_chanctx_conf *conf;
575 conf = rcu_dereference(vif->chanctx_conf);
587 static void ath10k_mac_num_chanctxs_iter(struct ieee80211_hw *hw,
588 struct ieee80211_chanctx_conf *conf,
596 static int ath10k_mac_num_chanctxs(struct ath10k *ar)
600 ieee80211_iter_chan_contexts_atomic(ar->hw,
601 ath10k_mac_num_chanctxs_iter,
608 ath10k_mac_get_any_chandef_iter(struct ieee80211_hw *hw,
609 struct ieee80211_chanctx_conf *conf,
612 struct cfg80211_chan_def **def = data;
617 static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr,
618 enum wmi_peer_type peer_type)
620 struct ath10k_vif *arvif;
624 lockdep_assert_held(&ar->conf_mutex);
626 num_peers = ar->num_peers;
628 /* Each vdev consumes a peer entry as well */
629 list_for_each_entry(arvif, &ar->arvifs, list)
632 if (num_peers >= ar->max_num_peers)
635 ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
637 ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
642 ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
644 ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
654 static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
656 struct ath10k *ar = arvif->ar;
660 param = ar->wmi.pdev_param->sta_kickout_th;
661 ret = ath10k_wmi_pdev_set_param(ar, param,
662 ATH10K_KICKOUT_THRESHOLD);
664 ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
665 arvif->vdev_id, ret);
669 param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
670 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
671 ATH10K_KEEPALIVE_MIN_IDLE);
673 ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
674 arvif->vdev_id, ret);
678 param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
679 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
680 ATH10K_KEEPALIVE_MAX_IDLE);
682 ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
683 arvif->vdev_id, ret);
687 param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
688 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
689 ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
691 ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
692 arvif->vdev_id, ret);
699 static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
701 struct ath10k *ar = arvif->ar;
704 vdev_param = ar->wmi.vdev_param->rts_threshold;
705 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
708 static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
712 lockdep_assert_held(&ar->conf_mutex);
714 ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
718 ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
727 static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
729 struct ath10k_peer *peer, *tmp;
731 lockdep_assert_held(&ar->conf_mutex);
733 spin_lock_bh(&ar->data_lock);
734 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
735 if (peer->vdev_id != vdev_id)
738 ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
739 peer->addr, vdev_id);
741 list_del(&peer->list);
745 spin_unlock_bh(&ar->data_lock);
748 static void ath10k_peer_cleanup_all(struct ath10k *ar)
750 struct ath10k_peer *peer, *tmp;
752 lockdep_assert_held(&ar->conf_mutex);
754 spin_lock_bh(&ar->data_lock);
755 list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
756 list_del(&peer->list);
759 spin_unlock_bh(&ar->data_lock);
762 ar->num_stations = 0;
765 static int ath10k_mac_tdls_peer_update(struct ath10k *ar, u32 vdev_id,
766 struct ieee80211_sta *sta,
767 enum wmi_tdls_peer_state state)
770 struct wmi_tdls_peer_update_cmd_arg arg = {};
771 struct wmi_tdls_peer_capab_arg cap = {};
772 struct wmi_channel_arg chan_arg = {};
774 lockdep_assert_held(&ar->conf_mutex);
776 arg.vdev_id = vdev_id;
777 arg.peer_state = state;
778 ether_addr_copy(arg.addr, sta->addr);
780 cap.peer_max_sp = sta->max_sp;
781 cap.peer_uapsd_queues = sta->uapsd_queues;
783 if (state == WMI_TDLS_PEER_STATE_CONNECTED &&
784 !sta->tdls_initiator)
785 cap.is_peer_responder = 1;
787 ret = ath10k_wmi_tdls_peer_update(ar, &arg, &cap, &chan_arg);
789 ath10k_warn(ar, "failed to update tdls peer %pM on vdev %i: %i\n",
790 arg.addr, vdev_id, ret);
797 /************************/
798 /* Interface management */
799 /************************/
801 void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
803 struct ath10k *ar = arvif->ar;
805 lockdep_assert_held(&ar->data_lock);
810 if (!arvif->beacon_buf)
811 dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
812 arvif->beacon->len, DMA_TO_DEVICE);
814 if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
815 arvif->beacon_state != ATH10K_BEACON_SENT))
818 dev_kfree_skb_any(arvif->beacon);
820 arvif->beacon = NULL;
821 arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
824 static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
826 struct ath10k *ar = arvif->ar;
828 lockdep_assert_held(&ar->data_lock);
830 ath10k_mac_vif_beacon_free(arvif);
832 if (arvif->beacon_buf) {
833 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
834 arvif->beacon_buf, arvif->beacon_paddr);
835 arvif->beacon_buf = NULL;
839 static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
841 unsigned long time_left;
843 lockdep_assert_held(&ar->conf_mutex);
845 if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
848 time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
849 ATH10K_VDEV_SETUP_TIMEOUT_HZ);
856 static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
858 struct cfg80211_chan_def *chandef = NULL;
859 struct ieee80211_channel *channel = NULL;
860 struct wmi_vdev_start_request_arg arg = {};
863 lockdep_assert_held(&ar->conf_mutex);
865 ieee80211_iter_chan_contexts_atomic(ar->hw,
866 ath10k_mac_get_any_chandef_iter,
868 if (WARN_ON_ONCE(!chandef))
871 channel = chandef->chan;
873 arg.vdev_id = vdev_id;
874 arg.channel.freq = channel->center_freq;
875 arg.channel.band_center_freq1 = chandef->center_freq1;
877 /* TODO setup this dynamically, what in case we
878 don't have any vifs? */
879 arg.channel.mode = chan_to_phymode(chandef);
880 arg.channel.chan_radar =
881 !!(channel->flags & IEEE80211_CHAN_RADAR);
883 arg.channel.min_power = 0;
884 arg.channel.max_power = channel->max_power * 2;
885 arg.channel.max_reg_power = channel->max_reg_power * 2;
886 arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
888 reinit_completion(&ar->vdev_setup_done);
890 ret = ath10k_wmi_vdev_start(ar, &arg);
892 ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
897 ret = ath10k_vdev_setup_sync(ar);
899 ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
904 ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
906 ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
911 ar->monitor_vdev_id = vdev_id;
913 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
914 ar->monitor_vdev_id);
918 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
920 ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
921 ar->monitor_vdev_id, ret);
926 static int ath10k_monitor_vdev_stop(struct ath10k *ar)
930 lockdep_assert_held(&ar->conf_mutex);
932 ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
934 ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
935 ar->monitor_vdev_id, ret);
937 reinit_completion(&ar->vdev_setup_done);
939 ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
941 ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
942 ar->monitor_vdev_id, ret);
944 ret = ath10k_vdev_setup_sync(ar);
946 ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
947 ar->monitor_vdev_id, ret);
949 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
950 ar->monitor_vdev_id);
954 static int ath10k_monitor_vdev_create(struct ath10k *ar)
958 lockdep_assert_held(&ar->conf_mutex);
960 if (ar->free_vdev_map == 0) {
961 ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
965 bit = __ffs64(ar->free_vdev_map);
967 ar->monitor_vdev_id = bit;
969 ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
970 WMI_VDEV_TYPE_MONITOR,
973 ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
974 ar->monitor_vdev_id, ret);
978 ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
979 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
980 ar->monitor_vdev_id);
985 static int ath10k_monitor_vdev_delete(struct ath10k *ar)
989 lockdep_assert_held(&ar->conf_mutex);
991 ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
993 ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
994 ar->monitor_vdev_id, ret);
998 ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
1000 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
1001 ar->monitor_vdev_id);
1005 static int ath10k_monitor_start(struct ath10k *ar)
1009 lockdep_assert_held(&ar->conf_mutex);
1011 ret = ath10k_monitor_vdev_create(ar);
1013 ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
1017 ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
1019 ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
1020 ath10k_monitor_vdev_delete(ar);
1024 ar->monitor_started = true;
1025 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
1030 static int ath10k_monitor_stop(struct ath10k *ar)
1034 lockdep_assert_held(&ar->conf_mutex);
1036 ret = ath10k_monitor_vdev_stop(ar);
1038 ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
1042 ret = ath10k_monitor_vdev_delete(ar);
1044 ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
1048 ar->monitor_started = false;
1049 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
1054 static bool ath10k_mac_monitor_vdev_is_needed(struct ath10k *ar)
1058 /* At least one chanctx is required to derive a channel to start
1061 num_ctx = ath10k_mac_num_chanctxs(ar);
1065 /* If there's already an existing special monitor interface then don't
1066 * bother creating another monitor vdev.
1068 if (ar->monitor_arvif)
1071 return ar->monitor ||
1072 ar->filter_flags & FIF_OTHER_BSS ||
1073 test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1076 static bool ath10k_mac_monitor_vdev_is_allowed(struct ath10k *ar)
1080 num_ctx = ath10k_mac_num_chanctxs(ar);
1082 /* FIXME: Current interface combinations and cfg80211/mac80211 code
1083 * shouldn't allow this but make sure to prevent handling the following
1084 * case anyway since multi-channel DFS hasn't been tested at all.
1086 if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) && num_ctx > 1)
1092 static int ath10k_monitor_recalc(struct ath10k *ar)
1098 lockdep_assert_held(&ar->conf_mutex);
1100 needed = ath10k_mac_monitor_vdev_is_needed(ar);
1101 allowed = ath10k_mac_monitor_vdev_is_allowed(ar);
1103 ath10k_dbg(ar, ATH10K_DBG_MAC,
1104 "mac monitor recalc started? %d needed? %d allowed? %d\n",
1105 ar->monitor_started, needed, allowed);
1107 if (WARN_ON(needed && !allowed)) {
1108 if (ar->monitor_started) {
1109 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopping disallowed monitor\n");
1111 ret = ath10k_monitor_stop(ar);
1113 ath10k_warn(ar, "failed to stop disallowed monitor: %d\n",
1121 if (needed == ar->monitor_started)
1125 return ath10k_monitor_start(ar);
1127 return ath10k_monitor_stop(ar);
1130 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
1132 struct ath10k *ar = arvif->ar;
1133 u32 vdev_param, rts_cts = 0;
1135 lockdep_assert_held(&ar->conf_mutex);
1137 vdev_param = ar->wmi.vdev_param->enable_rtscts;
1139 rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
1141 if (arvif->num_legacy_stations > 0)
1142 rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
1143 WMI_RTSCTS_PROFILE);
1145 rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
1146 WMI_RTSCTS_PROFILE);
1148 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
1152 static int ath10k_start_cac(struct ath10k *ar)
1156 lockdep_assert_held(&ar->conf_mutex);
1158 set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1160 ret = ath10k_monitor_recalc(ar);
1162 ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1163 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1167 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1168 ar->monitor_vdev_id);
1173 static int ath10k_stop_cac(struct ath10k *ar)
1175 lockdep_assert_held(&ar->conf_mutex);
1177 /* CAC is not running - do nothing */
1178 if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
1181 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
1182 ath10k_monitor_stop(ar);
1184 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1189 static void ath10k_mac_has_radar_iter(struct ieee80211_hw *hw,
1190 struct ieee80211_chanctx_conf *conf,
1195 if (!*ret && conf->radar_enabled)
1199 static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
1201 bool has_radar = false;
1203 ieee80211_iter_chan_contexts_atomic(ar->hw,
1204 ath10k_mac_has_radar_iter,
1210 static void ath10k_recalc_radar_detection(struct ath10k *ar)
1214 lockdep_assert_held(&ar->conf_mutex);
1216 ath10k_stop_cac(ar);
1218 if (!ath10k_mac_has_radar_enabled(ar))
1221 if (ar->num_started_vdevs > 0)
1224 ret = ath10k_start_cac(ar);
1227 * Not possible to start CAC on current channel so starting
1228 * radiation is not allowed, make this channel DFS_UNAVAILABLE
1229 * by indicating that radar was detected.
1231 ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1232 ieee80211_radar_detected(ar->hw);
1236 static int ath10k_vdev_stop(struct ath10k_vif *arvif)
1238 struct ath10k *ar = arvif->ar;
1241 lockdep_assert_held(&ar->conf_mutex);
1243 reinit_completion(&ar->vdev_setup_done);
1245 ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
1247 ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
1248 arvif->vdev_id, ret);
1252 ret = ath10k_vdev_setup_sync(ar);
1254 ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
1255 arvif->vdev_id, ret);
1259 WARN_ON(ar->num_started_vdevs == 0);
1261 if (ar->num_started_vdevs != 0) {
1262 ar->num_started_vdevs--;
1263 ath10k_recalc_radar_detection(ar);
1269 static int ath10k_vdev_start_restart(struct ath10k_vif *arvif,
1270 const struct cfg80211_chan_def *chandef,
1273 struct ath10k *ar = arvif->ar;
1274 struct wmi_vdev_start_request_arg arg = {};
1277 lockdep_assert_held(&ar->conf_mutex);
1279 reinit_completion(&ar->vdev_setup_done);
1281 arg.vdev_id = arvif->vdev_id;
1282 arg.dtim_period = arvif->dtim_period;
1283 arg.bcn_intval = arvif->beacon_interval;
1285 arg.channel.freq = chandef->chan->center_freq;
1286 arg.channel.band_center_freq1 = chandef->center_freq1;
1287 arg.channel.mode = chan_to_phymode(chandef);
1289 arg.channel.min_power = 0;
1290 arg.channel.max_power = chandef->chan->max_power * 2;
1291 arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
1292 arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
1294 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
1295 arg.ssid = arvif->u.ap.ssid;
1296 arg.ssid_len = arvif->u.ap.ssid_len;
1297 arg.hidden_ssid = arvif->u.ap.hidden_ssid;
1299 /* For now allow DFS for AP mode */
1300 arg.channel.chan_radar =
1301 !!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
1302 } else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
1303 arg.ssid = arvif->vif->bss_conf.ssid;
1304 arg.ssid_len = arvif->vif->bss_conf.ssid_len;
1307 ath10k_dbg(ar, ATH10K_DBG_MAC,
1308 "mac vdev %d start center_freq %d phymode %s\n",
1309 arg.vdev_id, arg.channel.freq,
1310 ath10k_wmi_phymode_str(arg.channel.mode));
1313 ret = ath10k_wmi_vdev_restart(ar, &arg);
1315 ret = ath10k_wmi_vdev_start(ar, &arg);
1318 ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
1323 ret = ath10k_vdev_setup_sync(ar);
1326 "failed to synchronize setup for vdev %i restart %d: %d\n",
1327 arg.vdev_id, restart, ret);
1331 ar->num_started_vdevs++;
1332 ath10k_recalc_radar_detection(ar);
1337 static int ath10k_vdev_start(struct ath10k_vif *arvif,
1338 const struct cfg80211_chan_def *def)
1340 return ath10k_vdev_start_restart(arvif, def, false);
1343 static int ath10k_vdev_restart(struct ath10k_vif *arvif,
1344 const struct cfg80211_chan_def *def)
1346 return ath10k_vdev_start_restart(arvif, def, true);
1349 static int ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif *arvif,
1350 struct sk_buff *bcn)
1352 struct ath10k *ar = arvif->ar;
1353 struct ieee80211_mgmt *mgmt;
1357 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1360 if (arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
1363 mgmt = (void *)bcn->data;
1364 p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1365 mgmt->u.beacon.variable,
1366 bcn->len - (mgmt->u.beacon.variable -
1371 ret = ath10k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
1373 ath10k_warn(ar, "failed to submit p2p go bcn ie for vdev %i: %d\n",
1374 arvif->vdev_id, ret);
1381 static int ath10k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
1382 u8 oui_type, size_t ie_offset)
1389 if (WARN_ON(skb->len < ie_offset))
1392 ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
1393 skb->data + ie_offset,
1394 skb->len - ie_offset);
1399 end = skb->data + skb->len;
1402 if (WARN_ON(next > end))
1405 memmove(ie, next, end - next);
1406 skb_trim(skb, skb->len - len);
1411 static int ath10k_mac_setup_bcn_tmpl(struct ath10k_vif *arvif)
1413 struct ath10k *ar = arvif->ar;
1414 struct ieee80211_hw *hw = ar->hw;
1415 struct ieee80211_vif *vif = arvif->vif;
1416 struct ieee80211_mutable_offsets offs = {};
1417 struct sk_buff *bcn;
1420 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1423 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
1424 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
1427 bcn = ieee80211_beacon_get_template(hw, vif, &offs);
1429 ath10k_warn(ar, "failed to get beacon template from mac80211\n");
1433 ret = ath10k_mac_setup_bcn_p2p_ie(arvif, bcn);
1435 ath10k_warn(ar, "failed to setup p2p go bcn ie: %d\n", ret);
1440 /* P2P IE is inserted by firmware automatically (as configured above)
1441 * so remove it from the base beacon template to avoid duplicate P2P
1442 * IEs in beacon frames.
1444 ath10k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
1445 offsetof(struct ieee80211_mgmt,
1446 u.beacon.variable));
1448 ret = ath10k_wmi_bcn_tmpl(ar, arvif->vdev_id, offs.tim_offset, bcn, 0,
1453 ath10k_warn(ar, "failed to submit beacon template command: %d\n",
1461 static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
1463 struct ath10k *ar = arvif->ar;
1464 struct ieee80211_hw *hw = ar->hw;
1465 struct ieee80211_vif *vif = arvif->vif;
1466 struct sk_buff *prb;
1469 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1472 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1475 prb = ieee80211_proberesp_get(hw, vif);
1477 ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
1481 ret = ath10k_wmi_prb_tmpl(ar, arvif->vdev_id, prb);
1485 ath10k_warn(ar, "failed to submit probe resp template command: %d\n",
1493 static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
1495 struct ath10k *ar = arvif->ar;
1496 struct cfg80211_chan_def def;
1499 /* When originally vdev is started during assign_vif_chanctx() some
1500 * information is missing, notably SSID. Firmware revisions with beacon
1501 * offloading require the SSID to be provided during vdev (re)start to
1502 * handle hidden SSID properly.
1504 * Vdev restart must be done after vdev has been both started and
1505 * upped. Otherwise some firmware revisions (at least 10.2) fail to
1506 * deliver vdev restart response event causing timeouts during vdev
1507 * syncing in ath10k.
1509 * Note: The vdev down/up and template reinstallation could be skipped
1510 * since only wmi-tlv firmware are known to have beacon offload and
1511 * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
1512 * response delivery. It's probably more robust to keep it as is.
1514 if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
1517 if (WARN_ON(!arvif->is_started))
1520 if (WARN_ON(!arvif->is_up))
1523 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
1526 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1528 ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
1529 arvif->vdev_id, ret);
1533 /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
1534 * firmware will crash upon vdev up.
1537 ret = ath10k_mac_setup_bcn_tmpl(arvif);
1539 ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
1543 ret = ath10k_mac_setup_prb_tmpl(arvif);
1545 ath10k_warn(ar, "failed to update presp template: %d\n", ret);
1549 ret = ath10k_vdev_restart(arvif, &def);
1551 ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
1552 arvif->vdev_id, ret);
1556 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1559 ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
1560 arvif->vdev_id, ret);
1567 static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1568 struct ieee80211_bss_conf *info)
1570 struct ath10k *ar = arvif->ar;
1573 lockdep_assert_held(&arvif->ar->conf_mutex);
1575 if (!info->enable_beacon) {
1576 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
1578 ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
1579 arvif->vdev_id, ret);
1581 arvif->is_up = false;
1583 spin_lock_bh(&arvif->ar->data_lock);
1584 ath10k_mac_vif_beacon_free(arvif);
1585 spin_unlock_bh(&arvif->ar->data_lock);
1590 arvif->tx_seq_no = 0x1000;
1593 ether_addr_copy(arvif->bssid, info->bssid);
1595 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
1598 ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1599 arvif->vdev_id, ret);
1603 arvif->is_up = true;
1605 ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
1607 ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
1608 arvif->vdev_id, ret);
1612 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1615 static void ath10k_control_ibss(struct ath10k_vif *arvif,
1616 struct ieee80211_bss_conf *info,
1617 const u8 self_peer[ETH_ALEN])
1619 struct ath10k *ar = arvif->ar;
1623 lockdep_assert_held(&arvif->ar->conf_mutex);
1625 if (!info->ibss_joined) {
1626 if (is_zero_ether_addr(arvif->bssid))
1629 eth_zero_addr(arvif->bssid);
1634 vdev_param = arvif->ar->wmi.vdev_param->atim_window;
1635 ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1636 ATH10K_DEFAULT_ATIM);
1638 ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1639 arvif->vdev_id, ret);
1642 static int ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif *arvif)
1644 struct ath10k *ar = arvif->ar;
1649 lockdep_assert_held(&arvif->ar->conf_mutex);
1651 if (arvif->u.sta.uapsd)
1652 value = WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER;
1654 value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
1656 param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
1657 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param, value);
1659 ath10k_warn(ar, "failed to submit ps wake threshold %u on vdev %i: %d\n",
1660 value, arvif->vdev_id, ret);
1667 static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
1669 struct ath10k *ar = arvif->ar;
1674 lockdep_assert_held(&arvif->ar->conf_mutex);
1676 if (arvif->u.sta.uapsd)
1677 value = WMI_STA_PS_PSPOLL_COUNT_UAPSD;
1679 value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
1681 param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
1682 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
1685 ath10k_warn(ar, "failed to submit ps poll count %u on vdev %i: %d\n",
1686 value, arvif->vdev_id, ret);
1693 static int ath10k_mac_num_vifs_started(struct ath10k *ar)
1695 struct ath10k_vif *arvif;
1698 lockdep_assert_held(&ar->conf_mutex);
1700 list_for_each_entry(arvif, &ar->arvifs, list)
1701 if (arvif->is_started)
1707 static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1709 struct ath10k *ar = arvif->ar;
1710 struct ieee80211_vif *vif = arvif->vif;
1711 struct ieee80211_conf *conf = &ar->hw->conf;
1712 enum wmi_sta_powersave_param param;
1713 enum wmi_sta_ps_mode psmode;
1718 lockdep_assert_held(&arvif->ar->conf_mutex);
1720 if (arvif->vif->type != NL80211_IFTYPE_STATION)
1723 enable_ps = arvif->ps;
1725 if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
1726 !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
1728 ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
1733 if (!arvif->is_started) {
1734 /* mac80211 can update vif powersave state while disconnected.
1735 * Firmware doesn't behave nicely and consumes more power than
1736 * necessary if PS is disabled on a non-started vdev. Hence
1737 * force-enable PS for non-running vdevs.
1739 psmode = WMI_STA_PS_MODE_ENABLED;
1740 } else if (enable_ps) {
1741 psmode = WMI_STA_PS_MODE_ENABLED;
1742 param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
1744 ps_timeout = conf->dynamic_ps_timeout;
1745 if (ps_timeout == 0) {
1746 /* Firmware doesn't like 0 */
1747 ps_timeout = ieee80211_tu_to_usec(
1748 vif->bss_conf.beacon_int) / 1000;
1751 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1754 ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1755 arvif->vdev_id, ret);
1759 psmode = WMI_STA_PS_MODE_DISABLED;
1762 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
1763 arvif->vdev_id, psmode ? "enable" : "disable");
1765 ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
1767 ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1768 psmode, arvif->vdev_id, ret);
1775 static int ath10k_mac_vif_disable_keepalive(struct ath10k_vif *arvif)
1777 struct ath10k *ar = arvif->ar;
1778 struct wmi_sta_keepalive_arg arg = {};
1781 lockdep_assert_held(&arvif->ar->conf_mutex);
1783 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
1786 if (!test_bit(WMI_SERVICE_STA_KEEP_ALIVE, ar->wmi.svc_map))
1789 /* Some firmware revisions have a bug and ignore the `enabled` field.
1790 * Instead use the interval to disable the keepalive.
1792 arg.vdev_id = arvif->vdev_id;
1794 arg.method = WMI_STA_KEEPALIVE_METHOD_NULL_FRAME;
1795 arg.interval = WMI_STA_KEEPALIVE_INTERVAL_DISABLE;
1797 ret = ath10k_wmi_sta_keepalive(ar, &arg);
1799 ath10k_warn(ar, "failed to submit keepalive on vdev %i: %d\n",
1800 arvif->vdev_id, ret);
1807 static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif)
1809 struct ath10k *ar = arvif->ar;
1810 struct ieee80211_vif *vif = arvif->vif;
1813 lockdep_assert_held(&arvif->ar->conf_mutex);
1815 if (WARN_ON(!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)))
1818 if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
1821 if (!vif->csa_active)
1827 if (!ieee80211_csa_is_complete(vif)) {
1828 ieee80211_csa_update_counter(vif);
1830 ret = ath10k_mac_setup_bcn_tmpl(arvif);
1832 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
1835 ret = ath10k_mac_setup_prb_tmpl(arvif);
1837 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
1840 ieee80211_csa_finish(vif);
1844 static void ath10k_mac_vif_ap_csa_work(struct work_struct *work)
1846 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
1848 struct ath10k *ar = arvif->ar;
1850 mutex_lock(&ar->conf_mutex);
1851 ath10k_mac_vif_ap_csa_count_down(arvif);
1852 mutex_unlock(&ar->conf_mutex);
1855 static void ath10k_mac_handle_beacon_iter(void *data, u8 *mac,
1856 struct ieee80211_vif *vif)
1858 struct sk_buff *skb = data;
1859 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1860 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1862 if (vif->type != NL80211_IFTYPE_STATION)
1865 if (!ether_addr_equal(mgmt->bssid, vif->bss_conf.bssid))
1868 cancel_delayed_work(&arvif->connection_loss_work);
1871 void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb)
1873 ieee80211_iterate_active_interfaces_atomic(ar->hw,
1874 IEEE80211_IFACE_ITER_NORMAL,
1875 ath10k_mac_handle_beacon_iter,
1879 static void ath10k_mac_handle_beacon_miss_iter(void *data, u8 *mac,
1880 struct ieee80211_vif *vif)
1882 u32 *vdev_id = data;
1883 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1884 struct ath10k *ar = arvif->ar;
1885 struct ieee80211_hw *hw = ar->hw;
1887 if (arvif->vdev_id != *vdev_id)
1893 ieee80211_beacon_loss(vif);
1895 /* Firmware doesn't report beacon loss events repeatedly. If AP probe
1896 * (done by mac80211) succeeds but beacons do not resume then it
1897 * doesn't make sense to continue operation. Queue connection loss work
1898 * which can be cancelled when beacon is received.
1900 ieee80211_queue_delayed_work(hw, &arvif->connection_loss_work,
1901 ATH10K_CONNECTION_LOSS_HZ);
1904 void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id)
1906 ieee80211_iterate_active_interfaces_atomic(ar->hw,
1907 IEEE80211_IFACE_ITER_NORMAL,
1908 ath10k_mac_handle_beacon_miss_iter,
1912 static void ath10k_mac_vif_sta_connection_loss_work(struct work_struct *work)
1914 struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
1915 connection_loss_work.work);
1916 struct ieee80211_vif *vif = arvif->vif;
1921 ieee80211_connection_loss(vif);
1924 /**********************/
1925 /* Station management */
1926 /**********************/
1928 static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
1929 struct ieee80211_vif *vif)
1931 /* Some firmware revisions have unstable STA powersave when listen
1932 * interval is set too high (e.g. 5). The symptoms are firmware doesn't
1933 * generate NullFunc frames properly even if buffered frames have been
1934 * indicated in Beacon TIM. Firmware would seldom wake up to pull
1935 * buffered frames. Often pinging the device from AP would simply fail.
1937 * As a workaround set it to 1.
1939 if (vif->type == NL80211_IFTYPE_STATION)
1942 return ar->hw->conf.listen_interval;
1945 static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
1946 struct ieee80211_vif *vif,
1947 struct ieee80211_sta *sta,
1948 struct wmi_peer_assoc_complete_arg *arg)
1950 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1953 lockdep_assert_held(&ar->conf_mutex);
1955 if (vif->type == NL80211_IFTYPE_STATION)
1956 aid = vif->bss_conf.aid;
1960 ether_addr_copy(arg->addr, sta->addr);
1961 arg->vdev_id = arvif->vdev_id;
1962 arg->peer_aid = aid;
1963 arg->peer_flags |= WMI_PEER_AUTH;
1964 arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
1965 arg->peer_num_spatial_streams = 1;
1966 arg->peer_caps = vif->bss_conf.assoc_capability;
1969 static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
1970 struct ieee80211_vif *vif,
1971 struct wmi_peer_assoc_complete_arg *arg)
1973 struct ieee80211_bss_conf *info = &vif->bss_conf;
1974 struct cfg80211_chan_def def;
1975 struct cfg80211_bss *bss;
1976 const u8 *rsnie = NULL;
1977 const u8 *wpaie = NULL;
1979 lockdep_assert_held(&ar->conf_mutex);
1981 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
1984 bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid, NULL, 0,
1985 IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
1987 const struct cfg80211_bss_ies *ies;
1990 rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
1992 ies = rcu_dereference(bss->ies);
1994 wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
1995 WLAN_OUI_TYPE_MICROSOFT_WPA,
1999 cfg80211_put_bss(ar->hw->wiphy, bss);
2002 /* FIXME: base on RSN IE/WPA IE is a correct idea? */
2003 if (rsnie || wpaie) {
2004 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
2005 arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
2009 ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
2010 arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
2014 static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
2015 struct ieee80211_vif *vif,
2016 struct ieee80211_sta *sta,
2017 struct wmi_peer_assoc_complete_arg *arg)
2019 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2020 struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
2021 struct cfg80211_chan_def def;
2022 const struct ieee80211_supported_band *sband;
2023 const struct ieee80211_rate *rates;
2024 enum ieee80211_band band;
2029 lockdep_assert_held(&ar->conf_mutex);
2031 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2034 band = def.chan->band;
2035 sband = ar->hw->wiphy->bands[band];
2036 ratemask = sta->supp_rates[band];
2037 ratemask &= arvif->bitrate_mask.control[band].legacy;
2038 rates = sband->bitrates;
2040 rateset->num_rates = 0;
2042 for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
2043 if (!(ratemask & 1))
2046 rate = ath10k_mac_bitrate_to_rate(rates->bitrate);
2047 rateset->rates[rateset->num_rates] = rate;
2048 rateset->num_rates++;
2053 ath10k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
2057 for (nss = 0; nss < IEEE80211_HT_MCS_MASK_LEN; nss++)
2058 if (ht_mcs_mask[nss])
2065 ath10k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
2069 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++)
2070 if (vht_mcs_mask[nss])
2076 static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
2077 struct ieee80211_vif *vif,
2078 struct ieee80211_sta *sta,
2079 struct wmi_peer_assoc_complete_arg *arg)
2081 const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
2082 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2083 struct cfg80211_chan_def def;
2084 enum ieee80211_band band;
2085 const u8 *ht_mcs_mask;
2086 const u16 *vht_mcs_mask;
2091 lockdep_assert_held(&ar->conf_mutex);
2093 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2096 if (!ht_cap->ht_supported)
2099 band = def.chan->band;
2100 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2101 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2103 if (ath10k_peer_assoc_h_ht_masked(ht_mcs_mask) &&
2104 ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2107 arg->peer_flags |= WMI_PEER_HT;
2108 arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2109 ht_cap->ampdu_factor)) - 1;
2111 arg->peer_mpdu_density =
2112 ath10k_parse_mpdudensity(ht_cap->ampdu_density);
2114 arg->peer_ht_caps = ht_cap->cap;
2115 arg->peer_rate_caps |= WMI_RC_HT_FLAG;
2117 if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
2118 arg->peer_flags |= WMI_PEER_LDPC;
2120 if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
2121 arg->peer_flags |= WMI_PEER_40MHZ;
2122 arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
2125 if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
2126 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
2127 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2129 if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
2130 arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2133 if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
2134 arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
2135 arg->peer_flags |= WMI_PEER_STBC;
2138 if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
2139 stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
2140 stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
2141 stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
2142 arg->peer_rate_caps |= stbc;
2143 arg->peer_flags |= WMI_PEER_STBC;
2146 if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
2147 arg->peer_rate_caps |= WMI_RC_TS_FLAG;
2148 else if (ht_cap->mcs.rx_mask[1])
2149 arg->peer_rate_caps |= WMI_RC_DS_FLAG;
2151 for (i = 0, n = 0, max_nss = 0; i < IEEE80211_HT_MCS_MASK_LEN * 8; i++)
2152 if ((ht_cap->mcs.rx_mask[i / 8] & BIT(i % 8)) &&
2153 (ht_mcs_mask[i / 8] & BIT(i % 8))) {
2154 max_nss = (i / 8) + 1;
2155 arg->peer_ht_rates.rates[n++] = i;
2159 * This is a workaround for HT-enabled STAs which break the spec
2160 * and have no HT capabilities RX mask (no HT RX MCS map).
2162 * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
2163 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
2165 * Firmware asserts if such situation occurs.
2168 arg->peer_ht_rates.num_rates = 8;
2169 for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
2170 arg->peer_ht_rates.rates[i] = i;
2172 arg->peer_ht_rates.num_rates = n;
2173 arg->peer_num_spatial_streams = min(sta->rx_nss, max_nss);
2176 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
2178 arg->peer_ht_rates.num_rates,
2179 arg->peer_num_spatial_streams);
2182 static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
2183 struct ath10k_vif *arvif,
2184 struct ieee80211_sta *sta)
2190 lockdep_assert_held(&ar->conf_mutex);
2192 if (sta->wme && sta->uapsd_queues) {
2193 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
2194 sta->uapsd_queues, sta->max_sp);
2196 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
2197 uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
2198 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
2199 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
2200 uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
2201 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
2202 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
2203 uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
2204 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
2205 if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
2206 uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
2207 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
2209 if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
2210 max_sp = sta->max_sp;
2212 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2214 WMI_AP_PS_PEER_PARAM_UAPSD,
2217 ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
2218 arvif->vdev_id, ret);
2222 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
2224 WMI_AP_PS_PEER_PARAM_MAX_SP,
2227 ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
2228 arvif->vdev_id, ret);
2232 /* TODO setup this based on STA listen interval and
2233 beacon interval. Currently we don't know
2234 sta->listen_interval - mac80211 patch required.
2235 Currently use 10 seconds */
2236 ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
2237 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
2240 ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
2241 arvif->vdev_id, ret);
2250 ath10k_peer_assoc_h_vht_limit(u16 tx_mcs_set,
2251 const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])
2258 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
2259 mcs_map = ath10k_mac_get_max_vht_mcs_map(tx_mcs_set, nss) &
2263 idx_limit = fls(mcs_map) - 1;
2267 switch (idx_limit) {
2268 case 0: /* fall through */
2269 case 1: /* fall through */
2270 case 2: /* fall through */
2271 case 3: /* fall through */
2272 case 4: /* fall through */
2273 case 5: /* fall through */
2274 case 6: /* fall through */
2276 /* see ath10k_mac_can_set_bitrate_mask() */
2280 mcs = IEEE80211_VHT_MCS_NOT_SUPPORTED;
2283 mcs = IEEE80211_VHT_MCS_SUPPORT_0_7;
2286 mcs = IEEE80211_VHT_MCS_SUPPORT_0_8;
2289 mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
2293 tx_mcs_set &= ~(0x3 << (nss * 2));
2294 tx_mcs_set |= mcs << (nss * 2);
2300 static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
2301 struct ieee80211_vif *vif,
2302 struct ieee80211_sta *sta,
2303 struct wmi_peer_assoc_complete_arg *arg)
2305 const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
2306 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2307 struct cfg80211_chan_def def;
2308 enum ieee80211_band band;
2309 const u16 *vht_mcs_mask;
2312 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2315 if (!vht_cap->vht_supported)
2318 band = def.chan->band;
2319 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2321 if (ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
2324 arg->peer_flags |= WMI_PEER_VHT;
2326 if (def.chan->band == IEEE80211_BAND_2GHZ)
2327 arg->peer_flags |= WMI_PEER_VHT_2G;
2329 arg->peer_vht_caps = vht_cap->cap;
2331 ampdu_factor = (vht_cap->cap &
2332 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
2333 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
2335 /* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
2336 * zero in VHT IE. Using it would result in degraded throughput.
2337 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
2338 * it if VHT max_mpdu is smaller. */
2339 arg->peer_max_mpdu = max(arg->peer_max_mpdu,
2340 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
2341 ampdu_factor)) - 1);
2343 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
2344 arg->peer_flags |= WMI_PEER_80MHZ;
2346 arg->peer_vht_rates.rx_max_rate =
2347 __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
2348 arg->peer_vht_rates.rx_mcs_set =
2349 __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
2350 arg->peer_vht_rates.tx_max_rate =
2351 __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
2352 arg->peer_vht_rates.tx_mcs_set = ath10k_peer_assoc_h_vht_limit(
2353 __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask);
2355 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
2356 sta->addr, arg->peer_max_mpdu, arg->peer_flags);
2359 static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
2360 struct ieee80211_vif *vif,
2361 struct ieee80211_sta *sta,
2362 struct wmi_peer_assoc_complete_arg *arg)
2364 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2366 switch (arvif->vdev_type) {
2367 case WMI_VDEV_TYPE_AP:
2369 arg->peer_flags |= WMI_PEER_QOS;
2371 if (sta->wme && sta->uapsd_queues) {
2372 arg->peer_flags |= WMI_PEER_APSD;
2373 arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
2376 case WMI_VDEV_TYPE_STA:
2377 if (vif->bss_conf.qos)
2378 arg->peer_flags |= WMI_PEER_QOS;
2380 case WMI_VDEV_TYPE_IBSS:
2382 arg->peer_flags |= WMI_PEER_QOS;
2388 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM qos %d\n",
2389 sta->addr, !!(arg->peer_flags & WMI_PEER_QOS));
2392 static bool ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
2394 return sta->supp_rates[IEEE80211_BAND_2GHZ] >>
2395 ATH10K_MAC_FIRST_OFDM_RATE_IDX;
2398 static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
2399 struct ieee80211_vif *vif,
2400 struct ieee80211_sta *sta,
2401 struct wmi_peer_assoc_complete_arg *arg)
2403 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2404 struct cfg80211_chan_def def;
2405 enum ieee80211_band band;
2406 const u8 *ht_mcs_mask;
2407 const u16 *vht_mcs_mask;
2408 enum wmi_phy_mode phymode = MODE_UNKNOWN;
2410 if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
2413 band = def.chan->band;
2414 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
2415 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
2418 case IEEE80211_BAND_2GHZ:
2419 if (sta->vht_cap.vht_supported &&
2420 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2421 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2422 phymode = MODE_11AC_VHT40;
2424 phymode = MODE_11AC_VHT20;
2425 } else if (sta->ht_cap.ht_supported &&
2426 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2427 if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2428 phymode = MODE_11NG_HT40;
2430 phymode = MODE_11NG_HT20;
2431 } else if (ath10k_mac_sta_has_ofdm_only(sta)) {
2438 case IEEE80211_BAND_5GHZ:
2442 if (sta->vht_cap.vht_supported &&
2443 !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2444 if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
2445 phymode = MODE_11AC_VHT80;
2446 else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
2447 phymode = MODE_11AC_VHT40;
2448 else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
2449 phymode = MODE_11AC_VHT20;
2450 } else if (sta->ht_cap.ht_supported &&
2451 !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2452 if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
2453 phymode = MODE_11NA_HT40;
2455 phymode = MODE_11NA_HT20;
2465 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
2466 sta->addr, ath10k_wmi_phymode_str(phymode));
2468 arg->peer_phymode = phymode;
2469 WARN_ON(phymode == MODE_UNKNOWN);
2472 static int ath10k_peer_assoc_prepare(struct ath10k *ar,
2473 struct ieee80211_vif *vif,
2474 struct ieee80211_sta *sta,
2475 struct wmi_peer_assoc_complete_arg *arg)
2477 lockdep_assert_held(&ar->conf_mutex);
2479 memset(arg, 0, sizeof(*arg));
2481 ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
2482 ath10k_peer_assoc_h_crypto(ar, vif, arg);
2483 ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
2484 ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
2485 ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
2486 ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
2487 ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
2492 static const u32 ath10k_smps_map[] = {
2493 [WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
2494 [WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
2495 [WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
2496 [WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
2499 static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
2501 const struct ieee80211_sta_ht_cap *ht_cap)
2505 if (!ht_cap->ht_supported)
2508 smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
2509 smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
2511 if (smps >= ARRAY_SIZE(ath10k_smps_map))
2514 return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
2515 WMI_PEER_SMPS_STATE,
2516 ath10k_smps_map[smps]);
2519 static int ath10k_mac_vif_recalc_txbf(struct ath10k *ar,
2520 struct ieee80211_vif *vif,
2521 struct ieee80211_sta_vht_cap vht_cap)
2523 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2528 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_AFTER_ASSOC)
2531 if (!(ar->vht_cap_info &
2532 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2533 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
2534 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2535 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
2538 param = ar->wmi.vdev_param->txbf;
2541 if (WARN_ON(param == WMI_VDEV_PARAM_UNSUPPORTED))
2544 /* The following logic is correct. If a remote STA advertises support
2545 * for being a beamformer then we should enable us being a beamformee.
2548 if (ar->vht_cap_info &
2549 (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
2550 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
2551 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
2552 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2554 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
2555 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
2558 if (ar->vht_cap_info &
2559 (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
2560 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
2561 if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
2562 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2564 if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
2565 value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
2568 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFEE)
2569 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
2571 if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFER)
2572 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
2574 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param, value);
2576 ath10k_warn(ar, "failed to submit vdev param txbf 0x%x: %d\n",
2584 /* can be called only in mac80211 callbacks due to `key_count` usage */
2585 static void ath10k_bss_assoc(struct ieee80211_hw *hw,
2586 struct ieee80211_vif *vif,
2587 struct ieee80211_bss_conf *bss_conf)
2589 struct ath10k *ar = hw->priv;
2590 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2591 struct ieee80211_sta_ht_cap ht_cap;
2592 struct ieee80211_sta_vht_cap vht_cap;
2593 struct wmi_peer_assoc_complete_arg peer_arg;
2594 struct ieee80211_sta *ap_sta;
2597 lockdep_assert_held(&ar->conf_mutex);
2599 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
2600 arvif->vdev_id, arvif->bssid, arvif->aid);
2604 ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
2606 ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
2607 bss_conf->bssid, arvif->vdev_id);
2612 /* ap_sta must be accessed only within rcu section which must be left
2613 * before calling ath10k_setup_peer_smps() which might sleep. */
2614 ht_cap = ap_sta->ht_cap;
2615 vht_cap = ap_sta->vht_cap;
2617 ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
2619 ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
2620 bss_conf->bssid, arvif->vdev_id, ret);
2627 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2629 ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
2630 bss_conf->bssid, arvif->vdev_id, ret);
2634 ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
2636 ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
2637 arvif->vdev_id, ret);
2641 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
2643 ath10k_warn(ar, "failed to recalc txbf for vdev %i on bss %pM: %d\n",
2644 arvif->vdev_id, bss_conf->bssid, ret);
2648 ath10k_dbg(ar, ATH10K_DBG_MAC,
2649 "mac vdev %d up (associated) bssid %pM aid %d\n",
2650 arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
2652 WARN_ON(arvif->is_up);
2654 arvif->aid = bss_conf->aid;
2655 ether_addr_copy(arvif->bssid, bss_conf->bssid);
2657 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
2659 ath10k_warn(ar, "failed to set vdev %d up: %d\n",
2660 arvif->vdev_id, ret);
2664 arvif->is_up = true;
2666 /* Workaround: Some firmware revisions (tested with qca6174
2667 * WLAN.RM.2.0-00073) have buggy powersave state machine and must be
2668 * poked with peer param command.
2670 ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, arvif->bssid,
2671 WMI_PEER_DUMMY_VAR, 1);
2673 ath10k_warn(ar, "failed to poke peer %pM param for ps workaround on vdev %i: %d\n",
2674 arvif->bssid, arvif->vdev_id, ret);
2679 static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
2680 struct ieee80211_vif *vif)
2682 struct ath10k *ar = hw->priv;
2683 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2684 struct ieee80211_sta_vht_cap vht_cap = {};
2687 lockdep_assert_held(&ar->conf_mutex);
2689 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
2690 arvif->vdev_id, arvif->bssid);
2692 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2694 ath10k_warn(ar, "faield to down vdev %i: %d\n",
2695 arvif->vdev_id, ret);
2697 arvif->def_wep_key_idx = -1;
2699 ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
2701 ath10k_warn(ar, "failed to recalc txbf for vdev %i: %d\n",
2702 arvif->vdev_id, ret);
2706 arvif->is_up = false;
2708 cancel_delayed_work_sync(&arvif->connection_loss_work);
2711 static int ath10k_station_assoc(struct ath10k *ar,
2712 struct ieee80211_vif *vif,
2713 struct ieee80211_sta *sta,
2716 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2717 struct wmi_peer_assoc_complete_arg peer_arg;
2720 lockdep_assert_held(&ar->conf_mutex);
2722 ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
2724 ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
2725 sta->addr, arvif->vdev_id, ret);
2729 ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2731 ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
2732 sta->addr, arvif->vdev_id, ret);
2736 /* Re-assoc is run only to update supported rates for given station. It
2737 * doesn't make much sense to reconfigure the peer completely.
2740 ret = ath10k_setup_peer_smps(ar, arvif, sta->addr,
2743 ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
2744 arvif->vdev_id, ret);
2748 ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
2750 ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
2751 sta->addr, arvif->vdev_id, ret);
2756 arvif->num_legacy_stations++;
2757 ret = ath10k_recalc_rtscts_prot(arvif);
2759 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2760 arvif->vdev_id, ret);
2765 /* Plumb cached keys only for static WEP */
2766 if (arvif->def_wep_key_idx != -1) {
2767 ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
2769 ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
2770 arvif->vdev_id, ret);
2779 static int ath10k_station_disassoc(struct ath10k *ar,
2780 struct ieee80211_vif *vif,
2781 struct ieee80211_sta *sta)
2783 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2786 lockdep_assert_held(&ar->conf_mutex);
2789 arvif->num_legacy_stations--;
2790 ret = ath10k_recalc_rtscts_prot(arvif);
2792 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2793 arvif->vdev_id, ret);
2798 ret = ath10k_clear_peer_keys(arvif, sta->addr);
2800 ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
2801 arvif->vdev_id, ret);
2812 static int ath10k_update_channel_list(struct ath10k *ar)
2814 struct ieee80211_hw *hw = ar->hw;
2815 struct ieee80211_supported_band **bands;
2816 enum ieee80211_band band;
2817 struct ieee80211_channel *channel;
2818 struct wmi_scan_chan_list_arg arg = {0};
2819 struct wmi_channel_arg *ch;
2825 lockdep_assert_held(&ar->conf_mutex);
2827 bands = hw->wiphy->bands;
2828 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2832 for (i = 0; i < bands[band]->n_channels; i++) {
2833 if (bands[band]->channels[i].flags &
2834 IEEE80211_CHAN_DISABLED)
2841 len = sizeof(struct wmi_channel_arg) * arg.n_channels;
2842 arg.channels = kzalloc(len, GFP_KERNEL);
2847 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2851 for (i = 0; i < bands[band]->n_channels; i++) {
2852 channel = &bands[band]->channels[i];
2854 if (channel->flags & IEEE80211_CHAN_DISABLED)
2857 ch->allow_ht = true;
2859 /* FIXME: when should we really allow VHT? */
2860 ch->allow_vht = true;
2863 !(channel->flags & IEEE80211_CHAN_NO_IR);
2866 !(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
2869 !!(channel->flags & IEEE80211_CHAN_RADAR);
2871 passive = channel->flags & IEEE80211_CHAN_NO_IR;
2872 ch->passive = passive;
2874 ch->freq = channel->center_freq;
2875 ch->band_center_freq1 = channel->center_freq;
2877 ch->max_power = channel->max_power * 2;
2878 ch->max_reg_power = channel->max_reg_power * 2;
2879 ch->max_antenna_gain = channel->max_antenna_gain * 2;
2880 ch->reg_class_id = 0; /* FIXME */
2882 /* FIXME: why use only legacy modes, why not any
2883 * HT/VHT modes? Would that even make any
2885 if (channel->band == IEEE80211_BAND_2GHZ)
2886 ch->mode = MODE_11G;
2888 ch->mode = MODE_11A;
2890 if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
2893 ath10k_dbg(ar, ATH10K_DBG_WMI,
2894 "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
2895 ch - arg.channels, arg.n_channels,
2896 ch->freq, ch->max_power, ch->max_reg_power,
2897 ch->max_antenna_gain, ch->mode);
2903 ret = ath10k_wmi_scan_chan_list(ar, &arg);
2904 kfree(arg.channels);
2909 static enum wmi_dfs_region
2910 ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
2912 switch (dfs_region) {
2913 case NL80211_DFS_UNSET:
2914 return WMI_UNINIT_DFS_DOMAIN;
2915 case NL80211_DFS_FCC:
2916 return WMI_FCC_DFS_DOMAIN;
2917 case NL80211_DFS_ETSI:
2918 return WMI_ETSI_DFS_DOMAIN;
2919 case NL80211_DFS_JP:
2920 return WMI_MKK4_DFS_DOMAIN;
2922 return WMI_UNINIT_DFS_DOMAIN;
2925 static void ath10k_regd_update(struct ath10k *ar)
2927 struct reg_dmn_pair_mapping *regpair;
2929 enum wmi_dfs_region wmi_dfs_reg;
2930 enum nl80211_dfs_regions nl_dfs_reg;
2932 lockdep_assert_held(&ar->conf_mutex);
2934 ret = ath10k_update_channel_list(ar);
2936 ath10k_warn(ar, "failed to update channel list: %d\n", ret);
2938 regpair = ar->ath_common.regulatory.regpair;
2940 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
2941 nl_dfs_reg = ar->dfs_detector->region;
2942 wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
2944 wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
2947 /* Target allows setting up per-band regdomain but ath_common provides
2948 * a combined one only */
2949 ret = ath10k_wmi_pdev_set_regdomain(ar,
2950 regpair->reg_domain,
2951 regpair->reg_domain, /* 2ghz */
2952 regpair->reg_domain, /* 5ghz */
2953 regpair->reg_2ghz_ctl,
2954 regpair->reg_5ghz_ctl,
2957 ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
2960 static void ath10k_reg_notifier(struct wiphy *wiphy,
2961 struct regulatory_request *request)
2963 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
2964 struct ath10k *ar = hw->priv;
2967 ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
2969 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
2970 ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
2971 request->dfs_region);
2972 result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
2973 request->dfs_region);
2975 ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
2976 request->dfs_region);
2979 mutex_lock(&ar->conf_mutex);
2980 if (ar->state == ATH10K_STATE_ON)
2981 ath10k_regd_update(ar);
2982 mutex_unlock(&ar->conf_mutex);
2989 void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
2991 lockdep_assert_held(&ar->htt.tx_lock);
2993 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
2994 ar->tx_paused |= BIT(reason);
2995 ieee80211_stop_queues(ar->hw);
2998 static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
2999 struct ieee80211_vif *vif)
3001 struct ath10k *ar = data;
3002 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3004 if (arvif->tx_paused)
3007 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3010 void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
3012 lockdep_assert_held(&ar->htt.tx_lock);
3014 WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
3015 ar->tx_paused &= ~BIT(reason);
3020 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3021 IEEE80211_IFACE_ITER_RESUME_ALL,
3022 ath10k_mac_tx_unlock_iter,
3025 ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
3028 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
3030 struct ath10k *ar = arvif->ar;
3032 lockdep_assert_held(&ar->htt.tx_lock);
3034 WARN_ON(reason >= BITS_PER_LONG);
3035 arvif->tx_paused |= BIT(reason);
3036 ieee80211_stop_queue(ar->hw, arvif->vdev_id);
3039 void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason)
3041 struct ath10k *ar = arvif->ar;
3043 lockdep_assert_held(&ar->htt.tx_lock);
3045 WARN_ON(reason >= BITS_PER_LONG);
3046 arvif->tx_paused &= ~BIT(reason);
3051 if (arvif->tx_paused)
3054 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3057 static void ath10k_mac_vif_handle_tx_pause(struct ath10k_vif *arvif,
3058 enum wmi_tlv_tx_pause_id pause_id,
3059 enum wmi_tlv_tx_pause_action action)
3061 struct ath10k *ar = arvif->ar;
3063 lockdep_assert_held(&ar->htt.tx_lock);
3066 case WMI_TLV_TX_PAUSE_ACTION_STOP:
3067 ath10k_mac_vif_tx_lock(arvif, pause_id);
3069 case WMI_TLV_TX_PAUSE_ACTION_WAKE:
3070 ath10k_mac_vif_tx_unlock(arvif, pause_id);
3073 ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
3074 action, arvif->vdev_id);
3079 struct ath10k_mac_tx_pause {
3081 enum wmi_tlv_tx_pause_id pause_id;
3082 enum wmi_tlv_tx_pause_action action;
3085 static void ath10k_mac_handle_tx_pause_iter(void *data, u8 *mac,
3086 struct ieee80211_vif *vif)
3088 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3089 struct ath10k_mac_tx_pause *arg = data;
3091 if (arvif->vdev_id != arg->vdev_id)
3094 ath10k_mac_vif_handle_tx_pause(arvif, arg->pause_id, arg->action);
3097 void ath10k_mac_handle_tx_pause_vdev(struct ath10k *ar, u32 vdev_id,
3098 enum wmi_tlv_tx_pause_id pause_id,
3099 enum wmi_tlv_tx_pause_action action)
3101 struct ath10k_mac_tx_pause arg = {
3103 .pause_id = pause_id,
3107 spin_lock_bh(&ar->htt.tx_lock);
3108 ieee80211_iterate_active_interfaces_atomic(ar->hw,
3109 IEEE80211_IFACE_ITER_RESUME_ALL,
3110 ath10k_mac_handle_tx_pause_iter,
3112 spin_unlock_bh(&ar->htt.tx_lock);
3115 static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
3117 if (ieee80211_is_mgmt(hdr->frame_control))
3118 return HTT_DATA_TX_EXT_TID_MGMT;
3120 if (!ieee80211_is_data_qos(hdr->frame_control))
3121 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
3123 if (!is_unicast_ether_addr(ieee80211_get_DA(hdr)))
3124 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
3126 return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
3129 static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar, struct ieee80211_vif *vif)
3132 return ath10k_vif_to_arvif(vif)->vdev_id;
3134 if (ar->monitor_started)
3135 return ar->monitor_vdev_id;
3137 ath10k_warn(ar, "failed to resolve vdev id\n");
3141 static enum ath10k_hw_txrx_mode
3142 ath10k_tx_h_get_txmode(struct ath10k *ar, struct ieee80211_vif *vif,
3143 struct ieee80211_sta *sta, struct sk_buff *skb)
3145 const struct ieee80211_hdr *hdr = (void *)skb->data;
3146 __le16 fc = hdr->frame_control;
3148 if (!vif || vif->type == NL80211_IFTYPE_MONITOR)
3149 return ATH10K_HW_TXRX_RAW;
3151 if (ieee80211_is_mgmt(fc))
3152 return ATH10K_HW_TXRX_MGMT;
3156 * NullFunc frames are mostly used to ping if a client or AP are still
3157 * reachable and responsive. This implies tx status reports must be
3158 * accurate - otherwise either mac80211 or userspace (e.g. hostapd) can
3159 * come to a conclusion that the other end disappeared and tear down
3160 * BSS connection or it can never disconnect from BSS/client (which is
3163 * Firmware with HTT older than 3.0 delivers incorrect tx status for
3164 * NullFunc frames to driver. However there's a HTT Mgmt Tx command
3165 * which seems to deliver correct tx reports for NullFunc frames. The
3166 * downside of using it is it ignores client powersave state so it can
3167 * end up disconnecting sleeping clients in AP mode. It should fix STA
3168 * mode though because AP don't sleep.
3170 if (ar->htt.target_version_major < 3 &&
3171 (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
3172 !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX, ar->fw_features))
3173 return ATH10K_HW_TXRX_MGMT;
3177 * Some wmi-tlv firmwares for qca6174 have broken Tx key selection for
3178 * NativeWifi txmode - it selects AP key instead of peer key. It seems
3179 * to work with Ethernet txmode so use it.
3181 * FIXME: Check if raw mode works with TDLS.
3183 if (ieee80211_is_data_present(fc) && sta && sta->tdls)
3184 return ATH10K_HW_TXRX_ETHERNET;
3186 if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
3187 return ATH10K_HW_TXRX_RAW;
3189 return ATH10K_HW_TXRX_NATIVE_WIFI;
3192 static bool ath10k_tx_h_use_hwcrypto(struct ieee80211_vif *vif,
3193 struct sk_buff *skb) {
3194 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3195 const u32 mask = IEEE80211_TX_INTFL_DONT_ENCRYPT |
3196 IEEE80211_TX_CTL_INJECTED;
3197 if ((info->flags & mask) == mask)
3200 return !ath10k_vif_to_arvif(vif)->nohwcrypt;
3204 /* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
3205 * Control in the header.
3207 static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
3209 struct ieee80211_hdr *hdr = (void *)skb->data;
3210 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3213 if (!ieee80211_is_data_qos(hdr->frame_control))
3216 qos_ctl = ieee80211_get_qos_ctl(hdr);
3217 memmove(skb->data + IEEE80211_QOS_CTL_LEN,
3218 skb->data, (void *)qos_ctl - (void *)skb->data);
3219 skb_pull(skb, IEEE80211_QOS_CTL_LEN);
3221 /* Some firmware revisions don't handle sending QoS NullFunc well.
3222 * These frames are mainly used for CQM purposes so it doesn't really
3223 * matter whether QoS NullFunc or NullFunc are sent.
3225 hdr = (void *)skb->data;
3226 if (ieee80211_is_qos_nullfunc(hdr->frame_control))
3227 cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
3229 hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
3232 static void ath10k_tx_h_8023(struct sk_buff *skb)
3234 struct ieee80211_hdr *hdr;
3235 struct rfc1042_hdr *rfc1042;
3242 hdr = (void *)skb->data;
3243 hdrlen = ieee80211_hdrlen(hdr->frame_control);
3244 rfc1042 = (void *)skb->data + hdrlen;
3246 ether_addr_copy(da, ieee80211_get_DA(hdr));
3247 ether_addr_copy(sa, ieee80211_get_SA(hdr));
3248 type = rfc1042->snap_type;
3250 skb_pull(skb, hdrlen + sizeof(*rfc1042));
3251 skb_push(skb, sizeof(*eth));
3253 eth = (void *)skb->data;
3254 ether_addr_copy(eth->h_dest, da);
3255 ether_addr_copy(eth->h_source, sa);
3256 eth->h_proto = type;
3259 static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
3260 struct ieee80211_vif *vif,
3261 struct sk_buff *skb)
3263 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3264 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3266 /* This is case only for P2P_GO */
3267 if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
3268 arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
3271 if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
3272 spin_lock_bh(&ar->data_lock);
3273 if (arvif->u.ap.noa_data)
3274 if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
3276 memcpy(skb_put(skb, arvif->u.ap.noa_len),
3277 arvif->u.ap.noa_data,
3278 arvif->u.ap.noa_len);
3279 spin_unlock_bh(&ar->data_lock);
3283 static bool ath10k_mac_need_offchan_tx_work(struct ath10k *ar)
3285 /* FIXME: Not really sure since when the behaviour changed. At some
3286 * point new firmware stopped requiring creation of peer entries for
3287 * offchannel tx (and actually creating them causes issues with wmi-htc
3288 * tx credit replenishment and reliability). Assuming it's at least 3.4
3289 * because that's when the `freq` was introduced to TX_FRM HTT command.
3291 return !(ar->htt.target_version_major >= 3 &&
3292 ar->htt.target_version_minor >= 4);
3295 static int ath10k_mac_tx_wmi_mgmt(struct ath10k *ar, struct sk_buff *skb)
3297 struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
3300 spin_lock_bh(&ar->data_lock);
3302 if (skb_queue_len(q) == ATH10K_MAX_NUM_MGMT_PENDING) {
3303 ath10k_warn(ar, "wmi mgmt tx queue is full\n");
3308 __skb_queue_tail(q, skb);
3309 ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
3312 spin_unlock_bh(&ar->data_lock);
3317 static void ath10k_mac_tx(struct ath10k *ar, struct sk_buff *skb)
3319 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3320 struct ath10k_htt *htt = &ar->htt;
3323 switch (cb->txmode) {
3324 case ATH10K_HW_TXRX_RAW:
3325 case ATH10K_HW_TXRX_NATIVE_WIFI:
3326 case ATH10K_HW_TXRX_ETHERNET:
3327 ret = ath10k_htt_tx(htt, skb);
3329 case ATH10K_HW_TXRX_MGMT:
3330 if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3332 ret = ath10k_mac_tx_wmi_mgmt(ar, skb);
3333 else if (ar->htt.target_version_major >= 3)
3334 ret = ath10k_htt_tx(htt, skb);
3336 ret = ath10k_htt_mgmt_tx(htt, skb);
3341 ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
3343 ieee80211_free_txskb(ar->hw, skb);
3347 void ath10k_offchan_tx_purge(struct ath10k *ar)
3349 struct sk_buff *skb;
3352 skb = skb_dequeue(&ar->offchan_tx_queue);
3356 ieee80211_free_txskb(ar->hw, skb);
3360 void ath10k_offchan_tx_work(struct work_struct *work)
3362 struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
3363 struct ath10k_peer *peer;
3364 struct ieee80211_hdr *hdr;
3365 struct sk_buff *skb;
3366 const u8 *peer_addr;
3369 unsigned long time_left;
3370 bool tmp_peer_created = false;
3372 /* FW requirement: We must create a peer before FW will send out
3373 * an offchannel frame. Otherwise the frame will be stuck and
3374 * never transmitted. We delete the peer upon tx completion.
3375 * It is unlikely that a peer for offchannel tx will already be
3376 * present. However it may be in some rare cases so account for that.
3377 * Otherwise we might remove a legitimate peer and break stuff. */
3380 skb = skb_dequeue(&ar->offchan_tx_queue);
3384 mutex_lock(&ar->conf_mutex);
3386 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %p\n",
3389 hdr = (struct ieee80211_hdr *)skb->data;
3390 peer_addr = ieee80211_get_DA(hdr);
3391 vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
3393 spin_lock_bh(&ar->data_lock);
3394 peer = ath10k_peer_find(ar, vdev_id, peer_addr);
3395 spin_unlock_bh(&ar->data_lock);
3398 /* FIXME: should this use ath10k_warn()? */
3399 ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
3400 peer_addr, vdev_id);
3403 ret = ath10k_peer_create(ar, vdev_id, peer_addr,
3404 WMI_PEER_TYPE_DEFAULT);
3406 ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
3407 peer_addr, vdev_id, ret);
3408 tmp_peer_created = (ret == 0);
3411 spin_lock_bh(&ar->data_lock);
3412 reinit_completion(&ar->offchan_tx_completed);
3413 ar->offchan_tx_skb = skb;
3414 spin_unlock_bh(&ar->data_lock);
3416 ath10k_mac_tx(ar, skb);
3419 wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
3421 ath10k_warn(ar, "timed out waiting for offchannel skb %p\n",
3424 if (!peer && tmp_peer_created) {
3425 ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
3427 ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
3428 peer_addr, vdev_id, ret);
3431 mutex_unlock(&ar->conf_mutex);
3435 void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
3437 struct sk_buff *skb;
3440 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
3444 ieee80211_free_txskb(ar->hw, skb);
3448 void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
3450 struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
3451 struct sk_buff *skb;
3455 skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
3459 ret = ath10k_wmi_mgmt_tx(ar, skb);
3461 ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
3463 ieee80211_free_txskb(ar->hw, skb);
3472 void __ath10k_scan_finish(struct ath10k *ar)
3474 lockdep_assert_held(&ar->data_lock);
3476 switch (ar->scan.state) {
3477 case ATH10K_SCAN_IDLE:
3479 case ATH10K_SCAN_RUNNING:
3480 case ATH10K_SCAN_ABORTING:
3481 if (!ar->scan.is_roc)
3482 ieee80211_scan_completed(ar->hw,
3484 ATH10K_SCAN_ABORTING));
3485 else if (ar->scan.roc_notify)
3486 ieee80211_remain_on_channel_expired(ar->hw);
3488 case ATH10K_SCAN_STARTING:
3489 ar->scan.state = ATH10K_SCAN_IDLE;
3490 ar->scan_channel = NULL;
3491 ath10k_offchan_tx_purge(ar);
3492 cancel_delayed_work(&ar->scan.timeout);
3493 complete_all(&ar->scan.completed);
3498 void ath10k_scan_finish(struct ath10k *ar)
3500 spin_lock_bh(&ar->data_lock);
3501 __ath10k_scan_finish(ar);
3502 spin_unlock_bh(&ar->data_lock);
3505 static int ath10k_scan_stop(struct ath10k *ar)
3507 struct wmi_stop_scan_arg arg = {
3508 .req_id = 1, /* FIXME */
3509 .req_type = WMI_SCAN_STOP_ONE,
3510 .u.scan_id = ATH10K_SCAN_ID,
3514 lockdep_assert_held(&ar->conf_mutex);
3516 ret = ath10k_wmi_stop_scan(ar, &arg);
3518 ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
3522 ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
3524 ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
3526 } else if (ret > 0) {
3531 /* Scan state should be updated upon scan completion but in case
3532 * firmware fails to deliver the event (for whatever reason) it is
3533 * desired to clean up scan state anyway. Firmware may have just
3534 * dropped the scan completion event delivery due to transport pipe
3535 * being overflown with data and/or it can recover on its own before
3536 * next scan request is submitted.
3538 spin_lock_bh(&ar->data_lock);
3539 if (ar->scan.state != ATH10K_SCAN_IDLE)
3540 __ath10k_scan_finish(ar);
3541 spin_unlock_bh(&ar->data_lock);
3546 static void ath10k_scan_abort(struct ath10k *ar)
3550 lockdep_assert_held(&ar->conf_mutex);
3552 spin_lock_bh(&ar->data_lock);
3554 switch (ar->scan.state) {
3555 case ATH10K_SCAN_IDLE:
3556 /* This can happen if timeout worker kicked in and called
3557 * abortion while scan completion was being processed.
3560 case ATH10K_SCAN_STARTING:
3561 case ATH10K_SCAN_ABORTING:
3562 ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
3563 ath10k_scan_state_str(ar->scan.state),
3566 case ATH10K_SCAN_RUNNING:
3567 ar->scan.state = ATH10K_SCAN_ABORTING;
3568 spin_unlock_bh(&ar->data_lock);
3570 ret = ath10k_scan_stop(ar);
3572 ath10k_warn(ar, "failed to abort scan: %d\n", ret);
3574 spin_lock_bh(&ar->data_lock);
3578 spin_unlock_bh(&ar->data_lock);
3581 void ath10k_scan_timeout_work(struct work_struct *work)
3583 struct ath10k *ar = container_of(work, struct ath10k,
3586 mutex_lock(&ar->conf_mutex);
3587 ath10k_scan_abort(ar);
3588 mutex_unlock(&ar->conf_mutex);
3591 static int ath10k_start_scan(struct ath10k *ar,
3592 const struct wmi_start_scan_arg *arg)
3596 lockdep_assert_held(&ar->conf_mutex);
3598 ret = ath10k_wmi_start_scan(ar, arg);
3602 ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
3604 ret = ath10k_scan_stop(ar);
3606 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
3611 /* If we failed to start the scan, return error code at
3612 * this point. This is probably due to some issue in the
3613 * firmware, but no need to wedge the driver due to that...
3615 spin_lock_bh(&ar->data_lock);
3616 if (ar->scan.state == ATH10K_SCAN_IDLE) {
3617 spin_unlock_bh(&ar->data_lock);
3620 spin_unlock_bh(&ar->data_lock);
3625 /**********************/
3626 /* mac80211 callbacks */
3627 /**********************/
3629 static void ath10k_tx(struct ieee80211_hw *hw,
3630 struct ieee80211_tx_control *control,
3631 struct sk_buff *skb)
3633 struct ath10k *ar = hw->priv;
3634 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3635 struct ieee80211_vif *vif = info->control.vif;
3636 struct ieee80211_sta *sta = control->sta;
3637 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3638 __le16 fc = hdr->frame_control;
3640 /* We should disable CCK RATE due to P2P */
3641 if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
3642 ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
3644 ATH10K_SKB_CB(skb)->htt.is_offchan = false;
3645 ATH10K_SKB_CB(skb)->htt.freq = 0;
3646 ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
3647 ATH10K_SKB_CB(skb)->htt.nohwcrypt = !ath10k_tx_h_use_hwcrypto(vif, skb);
3648 ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
3649 ATH10K_SKB_CB(skb)->txmode = ath10k_tx_h_get_txmode(ar, vif, sta, skb);
3650 ATH10K_SKB_CB(skb)->is_protected = ieee80211_has_protected(fc);
3652 switch (ATH10K_SKB_CB(skb)->txmode) {
3653 case ATH10K_HW_TXRX_MGMT:
3654 case ATH10K_HW_TXRX_NATIVE_WIFI:
3655 ath10k_tx_h_nwifi(hw, skb);
3656 ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
3657 ath10k_tx_h_seq_no(vif, skb);
3659 case ATH10K_HW_TXRX_ETHERNET:
3660 ath10k_tx_h_8023(skb);
3662 case ATH10K_HW_TXRX_RAW:
3663 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
3665 ieee80211_free_txskb(hw, skb);
3670 if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
3671 spin_lock_bh(&ar->data_lock);
3672 ATH10K_SKB_CB(skb)->htt.freq = ar->scan.roc_freq;
3673 ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
3674 spin_unlock_bh(&ar->data_lock);
3676 if (ath10k_mac_need_offchan_tx_work(ar)) {
3677 ATH10K_SKB_CB(skb)->htt.freq = 0;
3678 ATH10K_SKB_CB(skb)->htt.is_offchan = true;
3680 ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %p\n",
3683 skb_queue_tail(&ar->offchan_tx_queue, skb);
3684 ieee80211_queue_work(hw, &ar->offchan_tx_work);
3689 ath10k_mac_tx(ar, skb);
3692 /* Must not be called with conf_mutex held as workers can use that also. */
3693 void ath10k_drain_tx(struct ath10k *ar)
3695 /* make sure rcu-protected mac80211 tx path itself is drained */
3698 ath10k_offchan_tx_purge(ar);
3699 ath10k_mgmt_over_wmi_tx_purge(ar);
3701 cancel_work_sync(&ar->offchan_tx_work);
3702 cancel_work_sync(&ar->wmi_mgmt_tx_work);
3705 void ath10k_halt(struct ath10k *ar)
3707 struct ath10k_vif *arvif;
3709 lockdep_assert_held(&ar->conf_mutex);
3711 clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
3712 ar->filter_flags = 0;
3713 ar->monitor = false;
3714 ar->monitor_arvif = NULL;
3716 if (ar->monitor_started)
3717 ath10k_monitor_stop(ar);
3719 ar->monitor_started = false;
3722 ath10k_scan_finish(ar);
3723 ath10k_peer_cleanup_all(ar);
3724 ath10k_core_stop(ar);
3725 ath10k_hif_power_down(ar);
3727 spin_lock_bh(&ar->data_lock);
3728 list_for_each_entry(arvif, &ar->arvifs, list)
3729 ath10k_mac_vif_beacon_cleanup(arvif);
3730 spin_unlock_bh(&ar->data_lock);
3733 static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
3735 struct ath10k *ar = hw->priv;
3737 mutex_lock(&ar->conf_mutex);
3739 if (ar->cfg_tx_chainmask) {
3740 *tx_ant = ar->cfg_tx_chainmask;
3741 *rx_ant = ar->cfg_rx_chainmask;
3743 *tx_ant = ar->supp_tx_chainmask;
3744 *rx_ant = ar->supp_rx_chainmask;
3747 mutex_unlock(&ar->conf_mutex);
3752 static void ath10k_check_chain_mask(struct ath10k *ar, u32 cm, const char *dbg)
3754 /* It is not clear that allowing gaps in chainmask
3755 * is helpful. Probably it will not do what user
3756 * is hoping for, so warn in that case.
3758 if (cm == 15 || cm == 7 || cm == 3 || cm == 1 || cm == 0)
3761 ath10k_warn(ar, "mac %s antenna chainmask may be invalid: 0x%x. Suggested values: 15, 7, 3, 1 or 0.\n",
3765 static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
3769 lockdep_assert_held(&ar->conf_mutex);
3771 ath10k_check_chain_mask(ar, tx_ant, "tx");
3772 ath10k_check_chain_mask(ar, rx_ant, "rx");
3774 ar->cfg_tx_chainmask = tx_ant;
3775 ar->cfg_rx_chainmask = rx_ant;
3777 if ((ar->state != ATH10K_STATE_ON) &&
3778 (ar->state != ATH10K_STATE_RESTARTED))
3781 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
3784 ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
3789 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
3792 ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
3800 static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
3802 struct ath10k *ar = hw->priv;
3805 mutex_lock(&ar->conf_mutex);
3806 ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
3807 mutex_unlock(&ar->conf_mutex);
3811 static int ath10k_start(struct ieee80211_hw *hw)
3813 struct ath10k *ar = hw->priv;
3818 * This makes sense only when restarting hw. It is harmless to call
3819 * uncoditionally. This is necessary to make sure no HTT/WMI tx
3820 * commands will be submitted while restarting.
3822 ath10k_drain_tx(ar);
3824 mutex_lock(&ar->conf_mutex);
3826 switch (ar->state) {
3827 case ATH10K_STATE_OFF:
3828 ar->state = ATH10K_STATE_ON;
3830 case ATH10K_STATE_RESTARTING:
3832 ar->state = ATH10K_STATE_RESTARTED;
3834 case ATH10K_STATE_ON:
3835 case ATH10K_STATE_RESTARTED:
3836 case ATH10K_STATE_WEDGED:
3840 case ATH10K_STATE_UTF:
3845 ret = ath10k_hif_power_up(ar);
3847 ath10k_err(ar, "Could not init hif: %d\n", ret);
3851 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
3853 ath10k_err(ar, "Could not init core: %d\n", ret);
3854 goto err_power_down;
3857 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
3859 ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
3863 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
3865 ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
3869 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
3870 ret = ath10k_wmi_adaptive_qcs(ar, true);
3872 ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
3878 if (test_bit(WMI_SERVICE_BURST, ar->wmi.svc_map)) {
3879 burst_enable = ar->wmi.pdev_param->burst_enable;
3880 ret = ath10k_wmi_pdev_set_param(ar, burst_enable, 0);
3882 ath10k_warn(ar, "failed to disable burst: %d\n", ret);
3887 if (ar->cfg_tx_chainmask)
3888 __ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
3889 ar->cfg_rx_chainmask);
3892 * By default FW set ARP frames ac to voice (6). In that case ARP
3893 * exchange is not working properly for UAPSD enabled AP. ARP requests
3894 * which arrives with access category 0 are processed by network stack
3895 * and send back with access category 0, but FW changes access category
3896 * to 6. Set ARP frames access category to best effort (0) solves
3900 ret = ath10k_wmi_pdev_set_param(ar,
3901 ar->wmi.pdev_param->arp_ac_override, 0);
3903 ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
3908 ret = ath10k_wmi_pdev_set_param(ar,
3909 ar->wmi.pdev_param->ani_enable, 1);
3911 ath10k_warn(ar, "failed to enable ani by default: %d\n",
3916 ar->ani_enabled = true;
3918 ar->num_started_vdevs = 0;
3919 ath10k_regd_update(ar);
3921 ath10k_spectral_start(ar);
3922 ath10k_thermal_set_throttling(ar);
3924 mutex_unlock(&ar->conf_mutex);
3928 ath10k_core_stop(ar);
3931 ath10k_hif_power_down(ar);
3934 ar->state = ATH10K_STATE_OFF;
3937 mutex_unlock(&ar->conf_mutex);
3941 static void ath10k_stop(struct ieee80211_hw *hw)
3943 struct ath10k *ar = hw->priv;
3945 ath10k_drain_tx(ar);
3947 mutex_lock(&ar->conf_mutex);
3948 if (ar->state != ATH10K_STATE_OFF) {
3950 ar->state = ATH10K_STATE_OFF;
3952 mutex_unlock(&ar->conf_mutex);
3954 cancel_delayed_work_sync(&ar->scan.timeout);
3955 cancel_work_sync(&ar->restart_work);
3958 static int ath10k_config_ps(struct ath10k *ar)
3960 struct ath10k_vif *arvif;
3963 lockdep_assert_held(&ar->conf_mutex);
3965 list_for_each_entry(arvif, &ar->arvifs, list) {
3966 ret = ath10k_mac_vif_setup_ps(arvif);
3968 ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
3976 static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower)
3981 lockdep_assert_held(&ar->conf_mutex);
3983 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac txpower %d\n", txpower);
3985 param = ar->wmi.pdev_param->txpower_limit2g;
3986 ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
3988 ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
3993 param = ar->wmi.pdev_param->txpower_limit5g;
3994 ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
3996 ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
4004 static int ath10k_mac_txpower_recalc(struct ath10k *ar)
4006 struct ath10k_vif *arvif;
4007 int ret, txpower = -1;
4009 lockdep_assert_held(&ar->conf_mutex);
4011 list_for_each_entry(arvif, &ar->arvifs, list) {
4012 WARN_ON(arvif->txpower < 0);
4015 txpower = arvif->txpower;
4017 txpower = min(txpower, arvif->txpower);
4020 if (WARN_ON(txpower == -1))
4023 ret = ath10k_mac_txpower_setup(ar, txpower);
4025 ath10k_warn(ar, "failed to setup tx power %d: %d\n",
4033 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
4035 struct ath10k *ar = hw->priv;
4036 struct ieee80211_conf *conf = &hw->conf;
4039 mutex_lock(&ar->conf_mutex);
4041 if (changed & IEEE80211_CONF_CHANGE_PS)
4042 ath10k_config_ps(ar);
4044 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
4045 ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
4046 ret = ath10k_monitor_recalc(ar);
4048 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4051 mutex_unlock(&ar->conf_mutex);
4055 static u32 get_nss_from_chainmask(u16 chain_mask)
4057 if ((chain_mask & 0x15) == 0x15)
4059 else if ((chain_mask & 0x7) == 0x7)
4061 else if ((chain_mask & 0x3) == 0x3)
4066 static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
4068 int nsts = ar->vht_cap_info;
4070 nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
4071 nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
4073 /* If firmware does not deliver to host number of space-time
4074 * streams supported, assume it support up to 4 BF STS and return
4075 * the value for VHT CAP: nsts-1)
4083 static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
4085 int sound_dim = ar->vht_cap_info;
4087 sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
4088 sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
4090 /* If the sounding dimension is not advertised by the firmware,
4091 * let's use a default value of 1
4099 static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
4102 struct ath10k *ar = arvif->ar;
4106 if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
4109 nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
4110 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
4111 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
4112 value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
4114 sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
4115 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
4116 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
4117 value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
4122 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
4123 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
4125 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
4126 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
4127 WMI_VDEV_PARAM_TXBF_SU_TX_BFER);
4129 if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
4130 value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
4132 if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
4133 value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
4134 WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);
4136 return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
4137 ar->wmi.vdev_param->txbf, value);
4142 * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
4143 * because we will send mgmt frames without CCK. This requirement
4144 * for P2P_FIND/GO_NEG should be handled by checking CCK flag
4147 static int ath10k_add_interface(struct ieee80211_hw *hw,
4148 struct ieee80211_vif *vif)
4150 struct ath10k *ar = hw->priv;
4151 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4152 enum wmi_sta_powersave_param param;
4159 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
4161 mutex_lock(&ar->conf_mutex);
4163 memset(arvif, 0, sizeof(*arvif));
4168 INIT_LIST_HEAD(&arvif->list);
4169 INIT_WORK(&arvif->ap_csa_work, ath10k_mac_vif_ap_csa_work);
4170 INIT_DELAYED_WORK(&arvif->connection_loss_work,
4171 ath10k_mac_vif_sta_connection_loss_work);
4173 for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
4174 arvif->bitrate_mask.control[i].legacy = 0xffffffff;
4175 memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
4176 sizeof(arvif->bitrate_mask.control[i].ht_mcs));
4177 memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
4178 sizeof(arvif->bitrate_mask.control[i].vht_mcs));
4181 if (ar->num_peers >= ar->max_num_peers) {
4182 ath10k_warn(ar, "refusing vdev creation due to insufficient peer entry resources in firmware\n");
4187 if (ar->free_vdev_map == 0) {
4188 ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
4192 bit = __ffs64(ar->free_vdev_map);
4194 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
4195 bit, ar->free_vdev_map);
4197 arvif->vdev_id = bit;
4198 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
4200 switch (vif->type) {
4201 case NL80211_IFTYPE_P2P_DEVICE:
4202 arvif->vdev_type = WMI_VDEV_TYPE_STA;
4203 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
4205 case NL80211_IFTYPE_UNSPECIFIED:
4206 case NL80211_IFTYPE_STATION:
4207 arvif->vdev_type = WMI_VDEV_TYPE_STA;
4209 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
4211 case NL80211_IFTYPE_ADHOC:
4212 arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
4214 case NL80211_IFTYPE_MESH_POINT:
4215 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
4217 ath10k_warn(ar, "must load driver with rawmode=1 to add mesh interfaces\n");
4220 arvif->vdev_type = WMI_VDEV_TYPE_AP;
4222 case NL80211_IFTYPE_AP:
4223 arvif->vdev_type = WMI_VDEV_TYPE_AP;
4226 arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
4228 case NL80211_IFTYPE_MONITOR:
4229 arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
4236 /* Using vdev_id as queue number will make it very easy to do per-vif
4237 * tx queue locking. This shouldn't wrap due to interface combinations
4238 * but do a modulo for correctness sake and prevent using offchannel tx
4239 * queues for regular vif tx.
4241 vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
4242 for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
4243 vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
4245 /* Some firmware revisions don't wait for beacon tx completion before
4246 * sending another SWBA event. This could lead to hardware using old
4247 * (freed) beacon data in some cases, e.g. tx credit starvation
4248 * combined with missed TBTT. This is very very rare.
4250 * On non-IOMMU-enabled hosts this could be a possible security issue
4251 * because hw could beacon some random data on the air. On
4252 * IOMMU-enabled hosts DMAR faults would occur in most cases and target
4253 * device would crash.
4255 * Since there are no beacon tx completions (implicit nor explicit)
4256 * propagated to host the only workaround for this is to allocate a
4257 * DMA-coherent buffer for a lifetime of a vif and use it for all
4258 * beacon tx commands. Worst case for this approach is some beacons may
4259 * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
4261 if (vif->type == NL80211_IFTYPE_ADHOC ||
4262 vif->type == NL80211_IFTYPE_MESH_POINT ||
4263 vif->type == NL80211_IFTYPE_AP) {
4264 arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
4265 IEEE80211_MAX_FRAME_LEN,
4266 &arvif->beacon_paddr,
4268 if (!arvif->beacon_buf) {
4270 ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
4275 if (test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags))
4276 arvif->nohwcrypt = true;
4278 if (arvif->nohwcrypt &&
4279 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
4280 ath10k_warn(ar, "cryptmode module param needed for sw crypto\n");
4284 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
4285 arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
4286 arvif->beacon_buf ? "single-buf" : "per-skb");
4288 ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
4289 arvif->vdev_subtype, vif->addr);
4291 ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
4292 arvif->vdev_id, ret);
4296 ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
4297 list_add(&arvif->list, &ar->arvifs);
4299 /* It makes no sense to have firmware do keepalives. mac80211 already
4300 * takes care of this with idle connection polling.
4302 ret = ath10k_mac_vif_disable_keepalive(arvif);
4304 ath10k_warn(ar, "failed to disable keepalive on vdev %i: %d\n",
4305 arvif->vdev_id, ret);
4306 goto err_vdev_delete;
4309 arvif->def_wep_key_idx = -1;
4311 vdev_param = ar->wmi.vdev_param->tx_encap_type;
4312 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4313 ATH10K_HW_TXRX_NATIVE_WIFI);
4314 /* 10.X firmware does not support this VDEV parameter. Do not warn */
4315 if (ret && ret != -EOPNOTSUPP) {
4316 ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
4317 arvif->vdev_id, ret);
4318 goto err_vdev_delete;
4321 if (ar->cfg_tx_chainmask) {
4322 u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
4324 vdev_param = ar->wmi.vdev_param->nss;
4325 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4328 ath10k_warn(ar, "failed to set vdev %i chainmask 0x%x, nss %i: %d\n",
4329 arvif->vdev_id, ar->cfg_tx_chainmask, nss,
4331 goto err_vdev_delete;
4335 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
4336 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4337 ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr,
4338 WMI_PEER_TYPE_DEFAULT);
4340 ath10k_warn(ar, "failed to create vdev %i peer for AP/IBSS: %d\n",
4341 arvif->vdev_id, ret);
4342 goto err_vdev_delete;
4346 if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
4347 ret = ath10k_mac_set_kickout(arvif);
4349 ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
4350 arvif->vdev_id, ret);
4351 goto err_peer_delete;
4355 if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
4356 param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
4357 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
4358 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
4361 ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
4362 arvif->vdev_id, ret);
4363 goto err_peer_delete;
4366 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
4368 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
4369 arvif->vdev_id, ret);
4370 goto err_peer_delete;
4373 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
4375 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
4376 arvif->vdev_id, ret);
4377 goto err_peer_delete;
4381 ret = ath10k_mac_set_txbf_conf(arvif);
4383 ath10k_warn(ar, "failed to set txbf for vdev %d: %d\n",
4384 arvif->vdev_id, ret);
4385 goto err_peer_delete;
4388 ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
4390 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
4391 arvif->vdev_id, ret);
4392 goto err_peer_delete;
4395 arvif->txpower = vif->bss_conf.txpower;
4396 ret = ath10k_mac_txpower_recalc(ar);
4398 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
4399 goto err_peer_delete;
4402 if (vif->type == NL80211_IFTYPE_MONITOR) {
4403 ar->monitor_arvif = arvif;
4404 ret = ath10k_monitor_recalc(ar);
4406 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4407 goto err_peer_delete;
4411 spin_lock_bh(&ar->htt.tx_lock);
4413 ieee80211_wake_queue(ar->hw, arvif->vdev_id);
4414 spin_unlock_bh(&ar->htt.tx_lock);
4416 mutex_unlock(&ar->conf_mutex);
4420 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
4421 arvif->vdev_type == WMI_VDEV_TYPE_IBSS)
4422 ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
4425 ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
4426 ar->free_vdev_map |= 1LL << arvif->vdev_id;
4427 list_del(&arvif->list);
4430 if (arvif->beacon_buf) {
4431 dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
4432 arvif->beacon_buf, arvif->beacon_paddr);
4433 arvif->beacon_buf = NULL;
4436 mutex_unlock(&ar->conf_mutex);
4441 static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
4445 for (i = 0; i < BITS_PER_LONG; i++)
4446 ath10k_mac_vif_tx_unlock(arvif, i);
4449 static void ath10k_remove_interface(struct ieee80211_hw *hw,
4450 struct ieee80211_vif *vif)
4452 struct ath10k *ar = hw->priv;
4453 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4456 cancel_work_sync(&arvif->ap_csa_work);
4457 cancel_delayed_work_sync(&arvif->connection_loss_work);
4459 mutex_lock(&ar->conf_mutex);
4461 spin_lock_bh(&ar->data_lock);
4462 ath10k_mac_vif_beacon_cleanup(arvif);
4463 spin_unlock_bh(&ar->data_lock);
4465 ret = ath10k_spectral_vif_stop(arvif);
4467 ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
4468 arvif->vdev_id, ret);
4470 ar->free_vdev_map |= 1LL << arvif->vdev_id;
4471 list_del(&arvif->list);
4473 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
4474 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4475 ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
4478 ath10k_warn(ar, "failed to submit AP/IBSS self-peer removal on vdev %i: %d\n",
4479 arvif->vdev_id, ret);
4481 kfree(arvif->u.ap.noa_data);
4484 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
4487 ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
4489 ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
4490 arvif->vdev_id, ret);
4492 /* Some firmware revisions don't notify host about self-peer removal
4493 * until after associated vdev is deleted.
4495 if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
4496 arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4497 ret = ath10k_wait_for_peer_deleted(ar, arvif->vdev_id,
4500 ath10k_warn(ar, "failed to remove AP self-peer on vdev %i: %d\n",
4501 arvif->vdev_id, ret);
4503 spin_lock_bh(&ar->data_lock);
4505 spin_unlock_bh(&ar->data_lock);
4508 ath10k_peer_cleanup(ar, arvif->vdev_id);
4510 if (vif->type == NL80211_IFTYPE_MONITOR) {
4511 ar->monitor_arvif = NULL;
4512 ret = ath10k_monitor_recalc(ar);
4514 ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4517 spin_lock_bh(&ar->htt.tx_lock);
4518 ath10k_mac_vif_tx_unlock_all(arvif);
4519 spin_unlock_bh(&ar->htt.tx_lock);
4521 mutex_unlock(&ar->conf_mutex);
4525 * FIXME: Has to be verified.
4527 #define SUPPORTED_FILTERS \
4532 FIF_BCN_PRBRESP_PROMISC | \
4536 static void ath10k_configure_filter(struct ieee80211_hw *hw,
4537 unsigned int changed_flags,
4538 unsigned int *total_flags,
4541 struct ath10k *ar = hw->priv;
4544 mutex_lock(&ar->conf_mutex);
4546 changed_flags &= SUPPORTED_FILTERS;
4547 *total_flags &= SUPPORTED_FILTERS;
4548 ar->filter_flags = *total_flags;
4550 ret = ath10k_monitor_recalc(ar);
4552 ath10k_warn(ar, "failed to recalc montior: %d\n", ret);
4554 mutex_unlock(&ar->conf_mutex);
4557 static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
4558 struct ieee80211_vif *vif,
4559 struct ieee80211_bss_conf *info,
4562 struct ath10k *ar = hw->priv;
4563 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4565 u32 vdev_param, pdev_param, slottime, preamble;
4567 mutex_lock(&ar->conf_mutex);
4569 if (changed & BSS_CHANGED_IBSS)
4570 ath10k_control_ibss(arvif, info, vif->addr);
4572 if (changed & BSS_CHANGED_BEACON_INT) {
4573 arvif->beacon_interval = info->beacon_int;
4574 vdev_param = ar->wmi.vdev_param->beacon_interval;
4575 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4576 arvif->beacon_interval);
4577 ath10k_dbg(ar, ATH10K_DBG_MAC,
4578 "mac vdev %d beacon_interval %d\n",
4579 arvif->vdev_id, arvif->beacon_interval);
4582 ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
4583 arvif->vdev_id, ret);
4586 if (changed & BSS_CHANGED_BEACON) {
4587 ath10k_dbg(ar, ATH10K_DBG_MAC,
4588 "vdev %d set beacon tx mode to staggered\n",
4591 pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
4592 ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
4593 WMI_BEACON_STAGGERED_MODE);
4595 ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
4596 arvif->vdev_id, ret);
4598 ret = ath10k_mac_setup_bcn_tmpl(arvif);
4600 ath10k_warn(ar, "failed to update beacon template: %d\n",
4603 if (ieee80211_vif_is_mesh(vif)) {
4604 /* mesh doesn't use SSID but firmware needs it */
4605 strncpy(arvif->u.ap.ssid, "mesh",
4606 sizeof(arvif->u.ap.ssid));
4607 arvif->u.ap.ssid_len = 4;
4611 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
4612 ret = ath10k_mac_setup_prb_tmpl(arvif);
4614 ath10k_warn(ar, "failed to setup probe resp template on vdev %i: %d\n",
4615 arvif->vdev_id, ret);
4618 if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
4619 arvif->dtim_period = info->dtim_period;
4621 ath10k_dbg(ar, ATH10K_DBG_MAC,
4622 "mac vdev %d dtim_period %d\n",
4623 arvif->vdev_id, arvif->dtim_period);
4625 vdev_param = ar->wmi.vdev_param->dtim_period;
4626 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4627 arvif->dtim_period);
4629 ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
4630 arvif->vdev_id, ret);
4633 if (changed & BSS_CHANGED_SSID &&
4634 vif->type == NL80211_IFTYPE_AP) {
4635 arvif->u.ap.ssid_len = info->ssid_len;
4637 memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
4638 arvif->u.ap.hidden_ssid = info->hidden_ssid;
4641 if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
4642 ether_addr_copy(arvif->bssid, info->bssid);
4644 if (changed & BSS_CHANGED_BEACON_ENABLED)
4645 ath10k_control_beaconing(arvif, info);
4647 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
4648 arvif->use_cts_prot = info->use_cts_prot;
4649 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
4650 arvif->vdev_id, info->use_cts_prot);
4652 ret = ath10k_recalc_rtscts_prot(arvif);
4654 ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
4655 arvif->vdev_id, ret);
4657 vdev_param = ar->wmi.vdev_param->protection_mode;
4658 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4659 info->use_cts_prot ? 1 : 0);
4661 ath10k_warn(ar, "failed to set protection mode %d on vdev %i: %d\n",
4662 info->use_cts_prot, arvif->vdev_id, ret);
4665 if (changed & BSS_CHANGED_ERP_SLOT) {
4666 if (info->use_short_slot)
4667 slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
4670 slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
4672 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
4673 arvif->vdev_id, slottime);
4675 vdev_param = ar->wmi.vdev_param->slot_time;
4676 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4679 ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
4680 arvif->vdev_id, ret);
4683 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4684 if (info->use_short_preamble)
4685 preamble = WMI_VDEV_PREAMBLE_SHORT;
4687 preamble = WMI_VDEV_PREAMBLE_LONG;
4689 ath10k_dbg(ar, ATH10K_DBG_MAC,
4690 "mac vdev %d preamble %dn",
4691 arvif->vdev_id, preamble);
4693 vdev_param = ar->wmi.vdev_param->preamble;
4694 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4697 ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
4698 arvif->vdev_id, ret);
4701 if (changed & BSS_CHANGED_ASSOC) {
4703 /* Workaround: Make sure monitor vdev is not running
4704 * when associating to prevent some firmware revisions
4705 * (e.g. 10.1 and 10.2) from crashing.
4707 if (ar->monitor_started)
4708 ath10k_monitor_stop(ar);
4709 ath10k_bss_assoc(hw, vif, info);
4710 ath10k_monitor_recalc(ar);
4712 ath10k_bss_disassoc(hw, vif);
4716 if (changed & BSS_CHANGED_TXPOWER) {
4717 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev_id %i txpower %d\n",
4718 arvif->vdev_id, info->txpower);
4720 arvif->txpower = info->txpower;
4721 ret = ath10k_mac_txpower_recalc(ar);
4723 ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
4726 if (changed & BSS_CHANGED_PS) {
4727 arvif->ps = vif->bss_conf.ps;
4729 ret = ath10k_config_ps(ar);
4731 ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
4732 arvif->vdev_id, ret);
4735 mutex_unlock(&ar->conf_mutex);
4738 static int ath10k_hw_scan(struct ieee80211_hw *hw,
4739 struct ieee80211_vif *vif,
4740 struct ieee80211_scan_request *hw_req)
4742 struct ath10k *ar = hw->priv;
4743 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4744 struct cfg80211_scan_request *req = &hw_req->req;
4745 struct wmi_start_scan_arg arg;
4749 mutex_lock(&ar->conf_mutex);
4751 spin_lock_bh(&ar->data_lock);
4752 switch (ar->scan.state) {
4753 case ATH10K_SCAN_IDLE:
4754 reinit_completion(&ar->scan.started);
4755 reinit_completion(&ar->scan.completed);
4756 ar->scan.state = ATH10K_SCAN_STARTING;
4757 ar->scan.is_roc = false;
4758 ar->scan.vdev_id = arvif->vdev_id;
4761 case ATH10K_SCAN_STARTING:
4762 case ATH10K_SCAN_RUNNING:
4763 case ATH10K_SCAN_ABORTING:
4767 spin_unlock_bh(&ar->data_lock);
4772 memset(&arg, 0, sizeof(arg));
4773 ath10k_wmi_start_scan_init(ar, &arg);
4774 arg.vdev_id = arvif->vdev_id;
4775 arg.scan_id = ATH10K_SCAN_ID;
4778 arg.ie_len = req->ie_len;
4779 memcpy(arg.ie, req->ie, arg.ie_len);
4783 arg.n_ssids = req->n_ssids;
4784 for (i = 0; i < arg.n_ssids; i++) {
4785 arg.ssids[i].len = req->ssids[i].ssid_len;
4786 arg.ssids[i].ssid = req->ssids[i].ssid;
4789 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
4792 if (req->n_channels) {
4793 arg.n_channels = req->n_channels;
4794 for (i = 0; i < arg.n_channels; i++)
4795 arg.channels[i] = req->channels[i]->center_freq;
4798 ret = ath10k_start_scan(ar, &arg);
4800 ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
4801 spin_lock_bh(&ar->data_lock);
4802 ar->scan.state = ATH10K_SCAN_IDLE;
4803 spin_unlock_bh(&ar->data_lock);
4806 /* Add a 200ms margin to account for event/command processing */
4807 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
4808 msecs_to_jiffies(arg.max_scan_time +
4812 mutex_unlock(&ar->conf_mutex);
4816 static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
4817 struct ieee80211_vif *vif)
4819 struct ath10k *ar = hw->priv;
4821 mutex_lock(&ar->conf_mutex);
4822 ath10k_scan_abort(ar);
4823 mutex_unlock(&ar->conf_mutex);
4825 cancel_delayed_work_sync(&ar->scan.timeout);
4828 static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
4829 struct ath10k_vif *arvif,
4830 enum set_key_cmd cmd,
4831 struct ieee80211_key_conf *key)
4833 u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
4836 /* 10.1 firmware branch requires default key index to be set to group
4837 * key index after installing it. Otherwise FW/HW Txes corrupted
4838 * frames with multi-vif APs. This is not required for main firmware
4839 * branch (e.g. 636).
4841 * This is also needed for 636 fw for IBSS-RSN to work more reliably.
4843 * FIXME: It remains unknown if this is required for multi-vif STA
4844 * interfaces on 10.1.
4847 if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
4848 arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
4851 if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
4854 if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
4857 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4863 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4866 ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
4867 arvif->vdev_id, ret);
4870 static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4871 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4872 struct ieee80211_key_conf *key)
4874 struct ath10k *ar = hw->priv;
4875 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4876 struct ath10k_peer *peer;
4877 const u8 *peer_addr;
4878 bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4879 key->cipher == WLAN_CIPHER_SUITE_WEP104;
4885 /* this one needs to be done in software */
4886 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
4889 if (arvif->nohwcrypt)
4892 if (key->keyidx > WMI_MAX_KEY_INDEX)
4895 mutex_lock(&ar->conf_mutex);
4898 peer_addr = sta->addr;
4899 else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
4900 peer_addr = vif->bss_conf.bssid;
4902 peer_addr = vif->addr;
4904 key->hw_key_idx = key->keyidx;
4908 arvif->wep_keys[key->keyidx] = key;
4910 arvif->wep_keys[key->keyidx] = NULL;
4913 /* the peer should not disappear in mid-way (unless FW goes awry) since
4914 * we already hold conf_mutex. we just make sure its there now. */
4915 spin_lock_bh(&ar->data_lock);
4916 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
4917 spin_unlock_bh(&ar->data_lock);
4920 if (cmd == SET_KEY) {
4921 ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
4926 /* if the peer doesn't exist there is no key to disable
4932 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4933 flags |= WMI_KEY_PAIRWISE;
4935 flags |= WMI_KEY_GROUP;
4938 if (cmd == DISABLE_KEY)
4939 ath10k_clear_vdev_key(arvif, key);
4941 /* When WEP keys are uploaded it's possible that there are
4942 * stations associated already (e.g. when merging) without any
4943 * keys. Static WEP needs an explicit per-peer key upload.
4945 if (vif->type == NL80211_IFTYPE_ADHOC &&
4947 ath10k_mac_vif_update_wep_key(arvif, key);
4949 /* 802.1x never sets the def_wep_key_idx so each set_key()
4950 * call changes default tx key.
4952 * Static WEP sets def_wep_key_idx via .set_default_unicast_key
4953 * after first set_key().
4955 if (cmd == SET_KEY && arvif->def_wep_key_idx == -1)
4956 flags |= WMI_KEY_TX_USAGE;
4959 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags);
4962 ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
4963 arvif->vdev_id, peer_addr, ret);
4967 /* mac80211 sets static WEP keys as groupwise while firmware requires
4968 * them to be installed twice as both pairwise and groupwise.
4970 if (is_wep && !sta && vif->type == NL80211_IFTYPE_STATION) {
4972 flags2 &= ~WMI_KEY_GROUP;
4973 flags2 |= WMI_KEY_PAIRWISE;
4975 ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags2);
4978 ath10k_warn(ar, "failed to install (ucast) key for vdev %i peer %pM: %d\n",
4979 arvif->vdev_id, peer_addr, ret);
4980 ret2 = ath10k_install_key(arvif, key, DISABLE_KEY,
4984 ath10k_warn(ar, "failed to disable (mcast) key for vdev %i peer %pM: %d\n",
4985 arvif->vdev_id, peer_addr, ret2);
4991 ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);
4993 spin_lock_bh(&ar->data_lock);
4994 peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
4995 if (peer && cmd == SET_KEY)
4996 peer->keys[key->keyidx] = key;
4997 else if (peer && cmd == DISABLE_KEY)
4998 peer->keys[key->keyidx] = NULL;
4999 else if (peer == NULL)
5000 /* impossible unless FW goes crazy */
5001 ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
5002 spin_unlock_bh(&ar->data_lock);
5005 mutex_unlock(&ar->conf_mutex);
5009 static void ath10k_set_default_unicast_key(struct ieee80211_hw *hw,
5010 struct ieee80211_vif *vif,
5013 struct ath10k *ar = hw->priv;
5014 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5017 mutex_lock(&arvif->ar->conf_mutex);
5019 if (arvif->ar->state != ATH10K_STATE_ON)
5022 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
5023 arvif->vdev_id, keyidx);
5025 ret = ath10k_wmi_vdev_set_param(arvif->ar,
5027 arvif->ar->wmi.vdev_param->def_keyid,
5031 ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
5037 arvif->def_wep_key_idx = keyidx;
5040 mutex_unlock(&arvif->ar->conf_mutex);
5043 static void ath10k_sta_rc_update_wk(struct work_struct *wk)
5046 struct ath10k_vif *arvif;
5047 struct ath10k_sta *arsta;
5048 struct ieee80211_sta *sta;
5049 struct cfg80211_chan_def def;
5050 enum ieee80211_band band;
5051 const u8 *ht_mcs_mask;
5052 const u16 *vht_mcs_mask;
5053 u32 changed, bw, nss, smps;
5056 arsta = container_of(wk, struct ath10k_sta, update_wk);
5057 sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
5058 arvif = arsta->arvif;
5061 if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
5064 band = def.chan->band;
5065 ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
5066 vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
5068 spin_lock_bh(&ar->data_lock);
5070 changed = arsta->changed;
5077 spin_unlock_bh(&ar->data_lock);
5079 mutex_lock(&ar->conf_mutex);
5081 nss = max_t(u32, 1, nss);
5082 nss = min(nss, max(ath10k_mac_max_ht_nss(ht_mcs_mask),
5083 ath10k_mac_max_vht_nss(vht_mcs_mask)));
5085 if (changed & IEEE80211_RC_BW_CHANGED) {
5086 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
5089 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5090 WMI_PEER_CHAN_WIDTH, bw);
5092 ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
5093 sta->addr, bw, err);
5096 if (changed & IEEE80211_RC_NSS_CHANGED) {
5097 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
5100 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5103 ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
5104 sta->addr, nss, err);
5107 if (changed & IEEE80211_RC_SMPS_CHANGED) {
5108 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
5111 err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
5112 WMI_PEER_SMPS_STATE, smps);
5114 ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
5115 sta->addr, smps, err);
5118 if (changed & IEEE80211_RC_SUPP_RATES_CHANGED ||
5119 changed & IEEE80211_RC_NSS_CHANGED) {
5120 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM supp rates/nss\n",
5123 err = ath10k_station_assoc(ar, arvif->vif, sta, true);
5125 ath10k_warn(ar, "failed to reassociate station: %pM\n",
5129 mutex_unlock(&ar->conf_mutex);
5132 static int ath10k_mac_inc_num_stations(struct ath10k_vif *arvif,
5133 struct ieee80211_sta *sta)
5135 struct ath10k *ar = arvif->ar;
5137 lockdep_assert_held(&ar->conf_mutex);
5139 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5142 if (ar->num_stations >= ar->max_num_stations)
5150 static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
5151 struct ieee80211_sta *sta)
5153 struct ath10k *ar = arvif->ar;
5155 lockdep_assert_held(&ar->conf_mutex);
5157 if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5163 struct ath10k_mac_tdls_iter_data {
5164 u32 num_tdls_stations;
5165 struct ieee80211_vif *curr_vif;
5168 static void ath10k_mac_tdls_vif_stations_count_iter(void *data,
5169 struct ieee80211_sta *sta)
5171 struct ath10k_mac_tdls_iter_data *iter_data = data;
5172 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5173 struct ieee80211_vif *sta_vif = arsta->arvif->vif;
5175 if (sta->tdls && sta_vif == iter_data->curr_vif)
5176 iter_data->num_tdls_stations++;
5179 static int ath10k_mac_tdls_vif_stations_count(struct ieee80211_hw *hw,
5180 struct ieee80211_vif *vif)
5182 struct ath10k_mac_tdls_iter_data data = {};
5184 data.curr_vif = vif;
5186 ieee80211_iterate_stations_atomic(hw,
5187 ath10k_mac_tdls_vif_stations_count_iter,
5189 return data.num_tdls_stations;
5192 static void ath10k_mac_tdls_vifs_count_iter(void *data, u8 *mac,
5193 struct ieee80211_vif *vif)
5195 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5196 int *num_tdls_vifs = data;
5198 if (vif->type != NL80211_IFTYPE_STATION)
5201 if (ath10k_mac_tdls_vif_stations_count(arvif->ar->hw, vif) > 0)
5205 static int ath10k_mac_tdls_vifs_count(struct ieee80211_hw *hw)
5207 int num_tdls_vifs = 0;
5209 ieee80211_iterate_active_interfaces_atomic(hw,
5210 IEEE80211_IFACE_ITER_NORMAL,
5211 ath10k_mac_tdls_vifs_count_iter,
5213 return num_tdls_vifs;
5216 static int ath10k_sta_state(struct ieee80211_hw *hw,
5217 struct ieee80211_vif *vif,
5218 struct ieee80211_sta *sta,
5219 enum ieee80211_sta_state old_state,
5220 enum ieee80211_sta_state new_state)
5222 struct ath10k *ar = hw->priv;
5223 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5224 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5227 if (old_state == IEEE80211_STA_NOTEXIST &&
5228 new_state == IEEE80211_STA_NONE) {
5229 memset(arsta, 0, sizeof(*arsta));
5230 arsta->arvif = arvif;
5231 INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
5234 /* cancel must be done outside the mutex to avoid deadlock */
5235 if ((old_state == IEEE80211_STA_NONE &&
5236 new_state == IEEE80211_STA_NOTEXIST))
5237 cancel_work_sync(&arsta->update_wk);
5239 mutex_lock(&ar->conf_mutex);
5241 if (old_state == IEEE80211_STA_NOTEXIST &&
5242 new_state == IEEE80211_STA_NONE) {
5244 * New station addition.
5246 enum wmi_peer_type peer_type = WMI_PEER_TYPE_DEFAULT;
5247 u32 num_tdls_stations;
5250 ath10k_dbg(ar, ATH10K_DBG_MAC,
5251 "mac vdev %d peer create %pM (new sta) sta %d / %d peer %d / %d\n",
5252 arvif->vdev_id, sta->addr,
5253 ar->num_stations + 1, ar->max_num_stations,
5254 ar->num_peers + 1, ar->max_num_peers);
5256 ret = ath10k_mac_inc_num_stations(arvif, sta);
5258 ath10k_warn(ar, "refusing to associate station: too many connected already (%d)\n",
5259 ar->max_num_stations);
5264 peer_type = WMI_PEER_TYPE_TDLS;
5266 ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr,
5269 ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
5270 sta->addr, arvif->vdev_id, ret);
5271 ath10k_mac_dec_num_stations(arvif, sta);
5278 num_tdls_stations = ath10k_mac_tdls_vif_stations_count(hw, vif);
5279 num_tdls_vifs = ath10k_mac_tdls_vifs_count(hw);
5281 if (num_tdls_vifs >= ar->max_num_tdls_vdevs &&
5282 num_tdls_stations == 0) {
5283 ath10k_warn(ar, "vdev %i exceeded maximum number of tdls vdevs %i\n",
5284 arvif->vdev_id, ar->max_num_tdls_vdevs);
5285 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
5286 ath10k_mac_dec_num_stations(arvif, sta);
5291 if (num_tdls_stations == 0) {
5292 /* This is the first tdls peer in current vif */
5293 enum wmi_tdls_state state = WMI_TDLS_ENABLE_ACTIVE;
5295 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
5298 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
5299 arvif->vdev_id, ret);
5300 ath10k_peer_delete(ar, arvif->vdev_id,
5302 ath10k_mac_dec_num_stations(arvif, sta);
5307 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
5308 WMI_TDLS_PEER_STATE_PEERING);
5311 "failed to update tdls peer %pM for vdev %d when adding a new sta: %i\n",
5312 sta->addr, arvif->vdev_id, ret);
5313 ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
5314 ath10k_mac_dec_num_stations(arvif, sta);
5316 if (num_tdls_stations != 0)
5318 ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
5321 } else if ((old_state == IEEE80211_STA_NONE &&
5322 new_state == IEEE80211_STA_NOTEXIST)) {
5324 * Existing station deletion.
5326 ath10k_dbg(ar, ATH10K_DBG_MAC,
5327 "mac vdev %d peer delete %pM (sta gone)\n",
5328 arvif->vdev_id, sta->addr);
5330 ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
5332 ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
5333 sta->addr, arvif->vdev_id, ret);
5335 ath10k_mac_dec_num_stations(arvif, sta);
5340 if (ath10k_mac_tdls_vif_stations_count(hw, vif))
5343 /* This was the last tdls peer in current vif */
5344 ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
5347 ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
5348 arvif->vdev_id, ret);
5350 } else if (old_state == IEEE80211_STA_AUTH &&
5351 new_state == IEEE80211_STA_ASSOC &&
5352 (vif->type == NL80211_IFTYPE_AP ||
5353 vif->type == NL80211_IFTYPE_MESH_POINT ||
5354 vif->type == NL80211_IFTYPE_ADHOC)) {
5358 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
5361 ret = ath10k_station_assoc(ar, vif, sta, false);
5363 ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
5364 sta->addr, arvif->vdev_id, ret);
5365 } else if (old_state == IEEE80211_STA_ASSOC &&
5366 new_state == IEEE80211_STA_AUTHORIZED &&
5369 * Tdls station authorized.
5371 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac tdls sta %pM authorized\n",
5374 ret = ath10k_station_assoc(ar, vif, sta, false);
5376 ath10k_warn(ar, "failed to associate tdls station %pM for vdev %i: %i\n",
5377 sta->addr, arvif->vdev_id, ret);
5381 ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
5382 WMI_TDLS_PEER_STATE_CONNECTED);
5384 ath10k_warn(ar, "failed to update tdls peer %pM for vdev %i: %i\n",
5385 sta->addr, arvif->vdev_id, ret);
5386 } else if (old_state == IEEE80211_STA_ASSOC &&
5387 new_state == IEEE80211_STA_AUTH &&
5388 (vif->type == NL80211_IFTYPE_AP ||
5389 vif->type == NL80211_IFTYPE_MESH_POINT ||
5390 vif->type == NL80211_IFTYPE_ADHOC)) {
5394 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
5397 ret = ath10k_station_disassoc(ar, vif, sta);
5399 ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
5400 sta->addr, arvif->vdev_id, ret);
5403 mutex_unlock(&ar->conf_mutex);
5407 static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
5408 u16 ac, bool enable)
5410 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5411 struct wmi_sta_uapsd_auto_trig_arg arg = {};
5412 u32 prio = 0, acc = 0;
5416 lockdep_assert_held(&ar->conf_mutex);
5418 if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
5422 case IEEE80211_AC_VO:
5423 value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
5424 WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
5428 case IEEE80211_AC_VI:
5429 value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
5430 WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
5434 case IEEE80211_AC_BE:
5435 value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
5436 WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
5440 case IEEE80211_AC_BK:
5441 value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
5442 WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
5449 arvif->u.sta.uapsd |= value;
5451 arvif->u.sta.uapsd &= ~value;
5453 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
5454 WMI_STA_PS_PARAM_UAPSD,
5455 arvif->u.sta.uapsd);
5457 ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
5461 if (arvif->u.sta.uapsd)
5462 value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
5464 value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
5466 ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
5467 WMI_STA_PS_PARAM_RX_WAKE_POLICY,
5470 ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
5472 ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
5474 ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
5475 arvif->vdev_id, ret);
5479 ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
5481 ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
5482 arvif->vdev_id, ret);
5486 if (test_bit(WMI_SERVICE_STA_UAPSD_BASIC_AUTO_TRIG, ar->wmi.svc_map) ||
5487 test_bit(WMI_SERVICE_STA_UAPSD_VAR_AUTO_TRIG, ar->wmi.svc_map)) {
5488 /* Only userspace can make an educated decision when to send
5489 * trigger frame. The following effectively disables u-UAPSD
5490 * autotrigger in firmware (which is enabled by default
5491 * provided the autotrigger service is available).
5495 arg.user_priority = prio;
5496 arg.service_interval = 0;
5497 arg.suspend_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
5498 arg.delay_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
5500 ret = ath10k_wmi_vdev_sta_uapsd(ar, arvif->vdev_id,
5501 arvif->bssid, &arg, 1);
5503 ath10k_warn(ar, "failed to set uapsd auto trigger %d\n",
5513 static int ath10k_conf_tx(struct ieee80211_hw *hw,
5514 struct ieee80211_vif *vif, u16 ac,
5515 const struct ieee80211_tx_queue_params *params)
5517 struct ath10k *ar = hw->priv;
5518 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5519 struct wmi_wmm_params_arg *p = NULL;
5522 mutex_lock(&ar->conf_mutex);
5525 case IEEE80211_AC_VO:
5526 p = &arvif->wmm_params.ac_vo;
5528 case IEEE80211_AC_VI:
5529 p = &arvif->wmm_params.ac_vi;
5531 case IEEE80211_AC_BE:
5532 p = &arvif->wmm_params.ac_be;
5534 case IEEE80211_AC_BK:
5535 p = &arvif->wmm_params.ac_bk;
5544 p->cwmin = params->cw_min;
5545 p->cwmax = params->cw_max;
5546 p->aifs = params->aifs;
5549 * The channel time duration programmed in the HW is in absolute
5550 * microseconds, while mac80211 gives the txop in units of
5553 p->txop = params->txop * 32;
5555 if (ar->wmi.ops->gen_vdev_wmm_conf) {
5556 ret = ath10k_wmi_vdev_wmm_conf(ar, arvif->vdev_id,
5557 &arvif->wmm_params);
5559 ath10k_warn(ar, "failed to set vdev wmm params on vdev %i: %d\n",
5560 arvif->vdev_id, ret);
5564 /* This won't work well with multi-interface cases but it's
5565 * better than nothing.
5567 ret = ath10k_wmi_pdev_set_wmm_params(ar, &arvif->wmm_params);
5569 ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
5574 ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
5576 ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
5579 mutex_unlock(&ar->conf_mutex);
5583 #define ATH10K_ROC_TIMEOUT_HZ (2*HZ)
5585 static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
5586 struct ieee80211_vif *vif,
5587 struct ieee80211_channel *chan,
5589 enum ieee80211_roc_type type)
5591 struct ath10k *ar = hw->priv;
5592 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5593 struct wmi_start_scan_arg arg;
5597 mutex_lock(&ar->conf_mutex);
5599 spin_lock_bh(&ar->data_lock);
5600 switch (ar->scan.state) {
5601 case ATH10K_SCAN_IDLE:
5602 reinit_completion(&ar->scan.started);
5603 reinit_completion(&ar->scan.completed);
5604 reinit_completion(&ar->scan.on_channel);
5605 ar->scan.state = ATH10K_SCAN_STARTING;
5606 ar->scan.is_roc = true;
5607 ar->scan.vdev_id = arvif->vdev_id;
5608 ar->scan.roc_freq = chan->center_freq;
5609 ar->scan.roc_notify = true;
5612 case ATH10K_SCAN_STARTING:
5613 case ATH10K_SCAN_RUNNING:
5614 case ATH10K_SCAN_ABORTING:
5618 spin_unlock_bh(&ar->data_lock);
5623 scan_time_msec = ar->hw->wiphy->max_remain_on_channel_duration * 2;
5625 memset(&arg, 0, sizeof(arg));
5626 ath10k_wmi_start_scan_init(ar, &arg);
5627 arg.vdev_id = arvif->vdev_id;
5628 arg.scan_id = ATH10K_SCAN_ID;
5630 arg.channels[0] = chan->center_freq;
5631 arg.dwell_time_active = scan_time_msec;
5632 arg.dwell_time_passive = scan_time_msec;
5633 arg.max_scan_time = scan_time_msec;
5634 arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
5635 arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
5636 arg.burst_duration_ms = duration;
5638 ret = ath10k_start_scan(ar, &arg);
5640 ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
5641 spin_lock_bh(&ar->data_lock);
5642 ar->scan.state = ATH10K_SCAN_IDLE;
5643 spin_unlock_bh(&ar->data_lock);
5647 ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
5649 ath10k_warn(ar, "failed to switch to channel for roc scan\n");
5651 ret = ath10k_scan_stop(ar);
5653 ath10k_warn(ar, "failed to stop scan: %d\n", ret);
5659 ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
5660 msecs_to_jiffies(duration));
5664 mutex_unlock(&ar->conf_mutex);
5668 static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
5670 struct ath10k *ar = hw->priv;
5672 mutex_lock(&ar->conf_mutex);
5674 spin_lock_bh(&ar->data_lock);
5675 ar->scan.roc_notify = false;
5676 spin_unlock_bh(&ar->data_lock);
5678 ath10k_scan_abort(ar);
5680 mutex_unlock(&ar->conf_mutex);
5682 cancel_delayed_work_sync(&ar->scan.timeout);
5688 * Both RTS and Fragmentation threshold are interface-specific
5689 * in ath10k, but device-specific in mac80211.
5692 static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
5694 struct ath10k *ar = hw->priv;
5695 struct ath10k_vif *arvif;
5698 mutex_lock(&ar->conf_mutex);
5699 list_for_each_entry(arvif, &ar->arvifs, list) {
5700 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
5701 arvif->vdev_id, value);
5703 ret = ath10k_mac_set_rts(arvif, value);
5705 ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
5706 arvif->vdev_id, ret);
5710 mutex_unlock(&ar->conf_mutex);
5715 static int ath10k_mac_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
5717 /* Even though there's a WMI enum for fragmentation threshold no known
5718 * firmware actually implements it. Moreover it is not possible to rely
5719 * frame fragmentation to mac80211 because firmware clears the "more
5720 * fragments" bit in frame control making it impossible for remote
5721 * devices to reassemble frames.
5723 * Hence implement a dummy callback just to say fragmentation isn't
5724 * supported. This effectively prevents mac80211 from doing frame
5725 * fragmentation in software.
5730 static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5731 u32 queues, bool drop)
5733 struct ath10k *ar = hw->priv;
5737 /* mac80211 doesn't care if we really xmit queued frames or not
5738 * we'll collect those frames either way if we stop/delete vdevs */
5742 mutex_lock(&ar->conf_mutex);
5744 if (ar->state == ATH10K_STATE_WEDGED)
5747 time_left = wait_event_timeout(ar->htt.empty_tx_wq, ({
5750 spin_lock_bh(&ar->htt.tx_lock);
5751 empty = (ar->htt.num_pending_tx == 0);
5752 spin_unlock_bh(&ar->htt.tx_lock);
5754 skip = (ar->state == ATH10K_STATE_WEDGED) ||
5755 test_bit(ATH10K_FLAG_CRASH_FLUSH,
5759 }), ATH10K_FLUSH_TIMEOUT_HZ);
5761 if (time_left == 0 || skip)
5762 ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %ld\n",
5763 skip, ar->state, time_left);
5766 mutex_unlock(&ar->conf_mutex);
5769 /* TODO: Implement this function properly
5770 * For now it is needed to reply to Probe Requests in IBSS mode.
5771 * Propably we need this information from FW.
5773 static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
5778 static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
5779 enum ieee80211_reconfig_type reconfig_type)
5781 struct ath10k *ar = hw->priv;
5783 if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
5786 mutex_lock(&ar->conf_mutex);
5788 /* If device failed to restart it will be in a different state, e.g.
5789 * ATH10K_STATE_WEDGED */
5790 if (ar->state == ATH10K_STATE_RESTARTED) {
5791 ath10k_info(ar, "device successfully recovered\n");
5792 ar->state = ATH10K_STATE_ON;
5793 ieee80211_wake_queues(ar->hw);
5796 mutex_unlock(&ar->conf_mutex);
5799 static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
5800 struct survey_info *survey)
5802 struct ath10k *ar = hw->priv;
5803 struct ieee80211_supported_band *sband;
5804 struct survey_info *ar_survey = &ar->survey[idx];
5807 mutex_lock(&ar->conf_mutex);
5809 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
5810 if (sband && idx >= sband->n_channels) {
5811 idx -= sband->n_channels;
5816 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
5818 if (!sband || idx >= sband->n_channels) {
5823 spin_lock_bh(&ar->data_lock);
5824 memcpy(survey, ar_survey, sizeof(*survey));
5825 spin_unlock_bh(&ar->data_lock);
5827 survey->channel = &sband->channels[idx];
5829 if (ar->rx_channel == survey->channel)
5830 survey->filled |= SURVEY_INFO_IN_USE;
5833 mutex_unlock(&ar->conf_mutex);
5838 ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
5839 enum ieee80211_band band,
5840 const struct cfg80211_bitrate_mask *mask)
5845 num_rates += hweight32(mask->control[band].legacy);
5847 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
5848 num_rates += hweight8(mask->control[band].ht_mcs[i]);
5850 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
5851 num_rates += hweight16(mask->control[band].vht_mcs[i]);
5853 return num_rates == 1;
5857 ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
5858 enum ieee80211_band band,
5859 const struct cfg80211_bitrate_mask *mask,
5862 struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
5863 u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
5865 u8 vht_nss_mask = 0;
5868 if (mask->control[band].legacy)
5871 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
5872 if (mask->control[band].ht_mcs[i] == 0)
5874 else if (mask->control[band].ht_mcs[i] ==
5875 sband->ht_cap.mcs.rx_mask[i])
5876 ht_nss_mask |= BIT(i);
5881 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
5882 if (mask->control[band].vht_mcs[i] == 0)
5884 else if (mask->control[band].vht_mcs[i] ==
5885 ath10k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
5886 vht_nss_mask |= BIT(i);
5891 if (ht_nss_mask != vht_nss_mask)
5894 if (ht_nss_mask == 0)
5897 if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
5900 *nss = fls(ht_nss_mask);
5906 ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
5907 enum ieee80211_band band,
5908 const struct cfg80211_bitrate_mask *mask,
5911 struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
5918 if (hweight32(mask->control[band].legacy) == 1) {
5919 rate_idx = ffs(mask->control[band].legacy) - 1;
5921 hw_rate = sband->bitrates[rate_idx].hw_value;
5922 bitrate = sband->bitrates[rate_idx].bitrate;
5924 if (ath10k_mac_bitrate_is_cck(bitrate))
5925 preamble = WMI_RATE_PREAMBLE_CCK;
5927 preamble = WMI_RATE_PREAMBLE_OFDM;
5930 *rate = preamble << 6 |
5937 for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
5938 if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
5940 *rate = WMI_RATE_PREAMBLE_HT << 6 |
5942 (ffs(mask->control[band].ht_mcs[i]) - 1);
5948 for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
5949 if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
5951 *rate = WMI_RATE_PREAMBLE_VHT << 6 |
5953 (ffs(mask->control[band].vht_mcs[i]) - 1);
5962 static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
5963 u8 rate, u8 nss, u8 sgi, u8 ldpc)
5965 struct ath10k *ar = arvif->ar;
5969 lockdep_assert_held(&ar->conf_mutex);
5971 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02hhx nss %hhu sgi %hhu\n",
5972 arvif->vdev_id, rate, nss, sgi);
5974 vdev_param = ar->wmi.vdev_param->fixed_rate;
5975 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
5977 ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
5982 vdev_param = ar->wmi.vdev_param->nss;
5983 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
5985 ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
5989 vdev_param = ar->wmi.vdev_param->sgi;
5990 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
5992 ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
5996 vdev_param = ar->wmi.vdev_param->ldpc;
5997 ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, ldpc);
5999 ath10k_warn(ar, "failed to set ldpc param %d: %d\n", ldpc, ret);
6007 ath10k_mac_can_set_bitrate_mask(struct ath10k *ar,
6008 enum ieee80211_band band,
6009 const struct cfg80211_bitrate_mask *mask)
6014 /* Due to firmware limitation in WMI_PEER_ASSOC_CMDID it is impossible
6015 * to express all VHT MCS rate masks. Effectively only the following
6016 * ranges can be used: none, 0-7, 0-8 and 0-9.
6018 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
6019 vht_mcs = mask->control[band].vht_mcs[i];
6028 ath10k_warn(ar, "refusing bitrate mask with missing 0-7 VHT MCS rates\n");
6036 static void ath10k_mac_set_bitrate_mask_iter(void *data,
6037 struct ieee80211_sta *sta)
6039 struct ath10k_vif *arvif = data;
6040 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
6041 struct ath10k *ar = arvif->ar;
6043 if (arsta->arvif != arvif)
6046 spin_lock_bh(&ar->data_lock);
6047 arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
6048 spin_unlock_bh(&ar->data_lock);
6050 ieee80211_queue_work(ar->hw, &arsta->update_wk);
6053 static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
6054 struct ieee80211_vif *vif,
6055 const struct cfg80211_bitrate_mask *mask)
6057 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6058 struct cfg80211_chan_def def;
6059 struct ath10k *ar = arvif->ar;
6060 enum ieee80211_band band;
6061 const u8 *ht_mcs_mask;
6062 const u16 *vht_mcs_mask;
6070 if (ath10k_mac_vif_chan(vif, &def))
6073 band = def.chan->band;
6074 ht_mcs_mask = mask->control[band].ht_mcs;
6075 vht_mcs_mask = mask->control[band].vht_mcs;
6076 ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
6078 sgi = mask->control[band].gi;
6079 if (sgi == NL80211_TXRATE_FORCE_LGI)
6082 if (ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask)) {
6083 ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
6086 ath10k_warn(ar, "failed to get single rate for vdev %i: %d\n",
6087 arvif->vdev_id, ret);
6090 } else if (ath10k_mac_bitrate_mask_get_single_nss(ar, band, mask,
6092 rate = WMI_FIXED_RATE_NONE;
6095 rate = WMI_FIXED_RATE_NONE;
6096 nss = min(ar->num_rf_chains,
6097 max(ath10k_mac_max_ht_nss(ht_mcs_mask),
6098 ath10k_mac_max_vht_nss(vht_mcs_mask)));
6100 if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask))
6103 mutex_lock(&ar->conf_mutex);
6105 arvif->bitrate_mask = *mask;
6106 ieee80211_iterate_stations_atomic(ar->hw,
6107 ath10k_mac_set_bitrate_mask_iter,
6110 mutex_unlock(&ar->conf_mutex);
6113 mutex_lock(&ar->conf_mutex);
6115 ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
6117 ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
6118 arvif->vdev_id, ret);
6123 mutex_unlock(&ar->conf_mutex);
6128 static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
6129 struct ieee80211_vif *vif,
6130 struct ieee80211_sta *sta,
6133 struct ath10k *ar = hw->priv;
6134 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
6137 spin_lock_bh(&ar->data_lock);
6139 ath10k_dbg(ar, ATH10K_DBG_MAC,
6140 "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
6141 sta->addr, changed, sta->bandwidth, sta->rx_nss,
6144 if (changed & IEEE80211_RC_BW_CHANGED) {
6145 bw = WMI_PEER_CHWIDTH_20MHZ;
6147 switch (sta->bandwidth) {
6148 case IEEE80211_STA_RX_BW_20:
6149 bw = WMI_PEER_CHWIDTH_20MHZ;
6151 case IEEE80211_STA_RX_BW_40:
6152 bw = WMI_PEER_CHWIDTH_40MHZ;
6154 case IEEE80211_STA_RX_BW_80:
6155 bw = WMI_PEER_CHWIDTH_80MHZ;
6157 case IEEE80211_STA_RX_BW_160:
6158 ath10k_warn(ar, "Invalid bandwidth %d in rc update for %pM\n",
6159 sta->bandwidth, sta->addr);
6160 bw = WMI_PEER_CHWIDTH_20MHZ;
6167 if (changed & IEEE80211_RC_NSS_CHANGED)
6168 arsta->nss = sta->rx_nss;
6170 if (changed & IEEE80211_RC_SMPS_CHANGED) {
6171 smps = WMI_PEER_SMPS_PS_NONE;
6173 switch (sta->smps_mode) {
6174 case IEEE80211_SMPS_AUTOMATIC:
6175 case IEEE80211_SMPS_OFF:
6176 smps = WMI_PEER_SMPS_PS_NONE;
6178 case IEEE80211_SMPS_STATIC:
6179 smps = WMI_PEER_SMPS_STATIC;
6181 case IEEE80211_SMPS_DYNAMIC:
6182 smps = WMI_PEER_SMPS_DYNAMIC;
6184 case IEEE80211_SMPS_NUM_MODES:
6185 ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
6186 sta->smps_mode, sta->addr);
6187 smps = WMI_PEER_SMPS_PS_NONE;
6194 arsta->changed |= changed;
6196 spin_unlock_bh(&ar->data_lock);
6198 ieee80211_queue_work(hw, &arsta->update_wk);
6201 static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
6204 * FIXME: Return 0 for time being. Need to figure out whether FW
6205 * has the API to fetch 64-bit local TSF
6211 static int ath10k_ampdu_action(struct ieee80211_hw *hw,
6212 struct ieee80211_vif *vif,
6213 enum ieee80211_ampdu_mlme_action action,
6214 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
6215 u8 buf_size, bool amsdu)
6217 struct ath10k *ar = hw->priv;
6218 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6220 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
6221 arvif->vdev_id, sta->addr, tid, action);
6224 case IEEE80211_AMPDU_RX_START:
6225 case IEEE80211_AMPDU_RX_STOP:
6226 /* HTT AddBa/DelBa events trigger mac80211 Rx BA session
6227 * creation/removal. Do we need to verify this?
6230 case IEEE80211_AMPDU_TX_START:
6231 case IEEE80211_AMPDU_TX_STOP_CONT:
6232 case IEEE80211_AMPDU_TX_STOP_FLUSH:
6233 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
6234 case IEEE80211_AMPDU_TX_OPERATIONAL:
6235 /* Firmware offloads Tx aggregation entirely so deny mac80211
6236 * Tx aggregation requests.
6245 ath10k_mac_update_rx_channel(struct ath10k *ar,
6246 struct ieee80211_chanctx_conf *ctx,
6247 struct ieee80211_vif_chanctx_switch *vifs,
6250 struct cfg80211_chan_def *def = NULL;
6252 /* Both locks are required because ar->rx_channel is modified. This
6253 * allows readers to hold either lock.
6255 lockdep_assert_held(&ar->conf_mutex);
6256 lockdep_assert_held(&ar->data_lock);
6258 WARN_ON(ctx && vifs);
6259 WARN_ON(vifs && n_vifs != 1);
6261 /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
6262 * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
6263 * ppdu on Rx may reduce performance on low-end systems. It should be
6264 * possible to make tables/hashmaps to speed the lookup up (be vary of
6265 * cpu data cache lines though regarding sizes) but to keep the initial
6266 * implementation simple and less intrusive fallback to the slow lookup
6267 * only for multi-channel cases. Single-channel cases will remain to
6268 * use the old channel derival and thus performance should not be
6272 if (!ctx && ath10k_mac_num_chanctxs(ar) == 1) {
6273 ieee80211_iter_chan_contexts_atomic(ar->hw,
6274 ath10k_mac_get_any_chandef_iter,
6278 def = &vifs[0].new_ctx->def;
6280 ar->rx_channel = def->chan;
6281 } else if (ctx && ath10k_mac_num_chanctxs(ar) == 0) {
6282 ar->rx_channel = ctx->def.chan;
6284 ar->rx_channel = NULL;
6290 ath10k_mac_update_vif_chan(struct ath10k *ar,
6291 struct ieee80211_vif_chanctx_switch *vifs,
6294 struct ath10k_vif *arvif;
6298 lockdep_assert_held(&ar->conf_mutex);
6300 /* First stop monitor interface. Some FW versions crash if there's a
6301 * lone monitor interface.
6303 if (ar->monitor_started)
6304 ath10k_monitor_stop(ar);
6306 for (i = 0; i < n_vifs; i++) {
6307 arvif = ath10k_vif_to_arvif(vifs[i].vif);
6309 ath10k_dbg(ar, ATH10K_DBG_MAC,
6310 "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d\n",
6312 vifs[i].old_ctx->def.chan->center_freq,
6313 vifs[i].new_ctx->def.chan->center_freq,
6314 vifs[i].old_ctx->def.width,
6315 vifs[i].new_ctx->def.width);
6317 if (WARN_ON(!arvif->is_started))
6320 if (WARN_ON(!arvif->is_up))
6323 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
6325 ath10k_warn(ar, "failed to down vdev %d: %d\n",
6326 arvif->vdev_id, ret);
6331 /* All relevant vdevs are downed and associated channel resources
6332 * should be available for the channel switch now.
6335 spin_lock_bh(&ar->data_lock);
6336 ath10k_mac_update_rx_channel(ar, NULL, vifs, n_vifs);
6337 spin_unlock_bh(&ar->data_lock);
6339 for (i = 0; i < n_vifs; i++) {
6340 arvif = ath10k_vif_to_arvif(vifs[i].vif);
6342 if (WARN_ON(!arvif->is_started))
6345 if (WARN_ON(!arvif->is_up))
6348 ret = ath10k_mac_setup_bcn_tmpl(arvif);
6350 ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
6353 ret = ath10k_mac_setup_prb_tmpl(arvif);
6355 ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
6358 ret = ath10k_vdev_restart(arvif, &vifs[i].new_ctx->def);
6360 ath10k_warn(ar, "failed to restart vdev %d: %d\n",
6361 arvif->vdev_id, ret);
6365 ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
6368 ath10k_warn(ar, "failed to bring vdev up %d: %d\n",
6369 arvif->vdev_id, ret);
6374 ath10k_monitor_recalc(ar);
6378 ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
6379 struct ieee80211_chanctx_conf *ctx)
6381 struct ath10k *ar = hw->priv;
6383 ath10k_dbg(ar, ATH10K_DBG_MAC,
6384 "mac chanctx add freq %hu width %d ptr %p\n",
6385 ctx->def.chan->center_freq, ctx->def.width, ctx);
6387 mutex_lock(&ar->conf_mutex);
6389 spin_lock_bh(&ar->data_lock);
6390 ath10k_mac_update_rx_channel(ar, ctx, NULL, 0);
6391 spin_unlock_bh(&ar->data_lock);
6393 ath10k_recalc_radar_detection(ar);
6394 ath10k_monitor_recalc(ar);
6396 mutex_unlock(&ar->conf_mutex);
6402 ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
6403 struct ieee80211_chanctx_conf *ctx)
6405 struct ath10k *ar = hw->priv;
6407 ath10k_dbg(ar, ATH10K_DBG_MAC,
6408 "mac chanctx remove freq %hu width %d ptr %p\n",
6409 ctx->def.chan->center_freq, ctx->def.width, ctx);
6411 mutex_lock(&ar->conf_mutex);
6413 spin_lock_bh(&ar->data_lock);
6414 ath10k_mac_update_rx_channel(ar, NULL, NULL, 0);
6415 spin_unlock_bh(&ar->data_lock);
6417 ath10k_recalc_radar_detection(ar);
6418 ath10k_monitor_recalc(ar);
6420 mutex_unlock(&ar->conf_mutex);
6423 struct ath10k_mac_change_chanctx_arg {
6424 struct ieee80211_chanctx_conf *ctx;
6425 struct ieee80211_vif_chanctx_switch *vifs;
6431 ath10k_mac_change_chanctx_cnt_iter(void *data, u8 *mac,
6432 struct ieee80211_vif *vif)
6434 struct ath10k_mac_change_chanctx_arg *arg = data;
6436 if (rcu_access_pointer(vif->chanctx_conf) != arg->ctx)
6443 ath10k_mac_change_chanctx_fill_iter(void *data, u8 *mac,
6444 struct ieee80211_vif *vif)
6446 struct ath10k_mac_change_chanctx_arg *arg = data;
6447 struct ieee80211_chanctx_conf *ctx;
6449 ctx = rcu_access_pointer(vif->chanctx_conf);
6450 if (ctx != arg->ctx)
6453 if (WARN_ON(arg->next_vif == arg->n_vifs))
6456 arg->vifs[arg->next_vif].vif = vif;
6457 arg->vifs[arg->next_vif].old_ctx = ctx;
6458 arg->vifs[arg->next_vif].new_ctx = ctx;
6463 ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
6464 struct ieee80211_chanctx_conf *ctx,
6467 struct ath10k *ar = hw->priv;
6468 struct ath10k_mac_change_chanctx_arg arg = { .ctx = ctx };
6470 mutex_lock(&ar->conf_mutex);
6472 ath10k_dbg(ar, ATH10K_DBG_MAC,
6473 "mac chanctx change freq %hu width %d ptr %p changed %x\n",
6474 ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
6476 /* This shouldn't really happen because channel switching should use
6477 * switch_vif_chanctx().
6479 if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
6482 if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) {
6483 ieee80211_iterate_active_interfaces_atomic(
6485 IEEE80211_IFACE_ITER_NORMAL,
6486 ath10k_mac_change_chanctx_cnt_iter,
6488 if (arg.n_vifs == 0)
6491 arg.vifs = kcalloc(arg.n_vifs, sizeof(arg.vifs[0]),
6496 ieee80211_iterate_active_interfaces_atomic(
6498 IEEE80211_IFACE_ITER_NORMAL,
6499 ath10k_mac_change_chanctx_fill_iter,
6501 ath10k_mac_update_vif_chan(ar, arg.vifs, arg.n_vifs);
6506 ath10k_recalc_radar_detection(ar);
6508 /* FIXME: How to configure Rx chains properly? */
6510 /* No other actions are actually necessary. Firmware maintains channel
6511 * definitions per vdev internally and there's no host-side channel
6512 * context abstraction to configure, e.g. channel width.
6516 mutex_unlock(&ar->conf_mutex);
6520 ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
6521 struct ieee80211_vif *vif,
6522 struct ieee80211_chanctx_conf *ctx)
6524 struct ath10k *ar = hw->priv;
6525 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6528 mutex_lock(&ar->conf_mutex);
6530 ath10k_dbg(ar, ATH10K_DBG_MAC,
6531 "mac chanctx assign ptr %p vdev_id %i\n",
6532 ctx, arvif->vdev_id);
6534 if (WARN_ON(arvif->is_started)) {
6535 mutex_unlock(&ar->conf_mutex);
6539 ret = ath10k_vdev_start(arvif, &ctx->def);
6541 ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
6542 arvif->vdev_id, vif->addr,
6543 ctx->def.chan->center_freq, ret);
6547 arvif->is_started = true;
6549 ret = ath10k_mac_vif_setup_ps(arvif);
6551 ath10k_warn(ar, "failed to update vdev %i ps: %d\n",
6552 arvif->vdev_id, ret);
6556 if (vif->type == NL80211_IFTYPE_MONITOR) {
6557 ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
6559 ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
6560 arvif->vdev_id, ret);
6564 arvif->is_up = true;
6567 mutex_unlock(&ar->conf_mutex);
6571 ath10k_vdev_stop(arvif);
6572 arvif->is_started = false;
6573 ath10k_mac_vif_setup_ps(arvif);
6576 mutex_unlock(&ar->conf_mutex);
6581 ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
6582 struct ieee80211_vif *vif,
6583 struct ieee80211_chanctx_conf *ctx)
6585 struct ath10k *ar = hw->priv;
6586 struct ath10k_vif *arvif = (void *)vif->drv_priv;
6589 mutex_lock(&ar->conf_mutex);
6591 ath10k_dbg(ar, ATH10K_DBG_MAC,
6592 "mac chanctx unassign ptr %p vdev_id %i\n",
6593 ctx, arvif->vdev_id);
6595 WARN_ON(!arvif->is_started);
6597 if (vif->type == NL80211_IFTYPE_MONITOR) {
6598 WARN_ON(!arvif->is_up);
6600 ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
6602 ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
6603 arvif->vdev_id, ret);
6605 arvif->is_up = false;
6608 ret = ath10k_vdev_stop(arvif);
6610 ath10k_warn(ar, "failed to stop vdev %i: %d\n",
6611 arvif->vdev_id, ret);
6613 arvif->is_started = false;
6615 mutex_unlock(&ar->conf_mutex);
6619 ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
6620 struct ieee80211_vif_chanctx_switch *vifs,
6622 enum ieee80211_chanctx_switch_mode mode)
6624 struct ath10k *ar = hw->priv;
6626 mutex_lock(&ar->conf_mutex);
6628 ath10k_dbg(ar, ATH10K_DBG_MAC,
6629 "mac chanctx switch n_vifs %d mode %d\n",
6631 ath10k_mac_update_vif_chan(ar, vifs, n_vifs);
6633 mutex_unlock(&ar->conf_mutex);
6637 static const struct ieee80211_ops ath10k_ops = {
6639 .start = ath10k_start,
6640 .stop = ath10k_stop,
6641 .config = ath10k_config,
6642 .add_interface = ath10k_add_interface,
6643 .remove_interface = ath10k_remove_interface,
6644 .configure_filter = ath10k_configure_filter,
6645 .bss_info_changed = ath10k_bss_info_changed,
6646 .hw_scan = ath10k_hw_scan,
6647 .cancel_hw_scan = ath10k_cancel_hw_scan,
6648 .set_key = ath10k_set_key,
6649 .set_default_unicast_key = ath10k_set_default_unicast_key,
6650 .sta_state = ath10k_sta_state,
6651 .conf_tx = ath10k_conf_tx,
6652 .remain_on_channel = ath10k_remain_on_channel,
6653 .cancel_remain_on_channel = ath10k_cancel_remain_on_channel,
6654 .set_rts_threshold = ath10k_set_rts_threshold,
6655 .set_frag_threshold = ath10k_mac_op_set_frag_threshold,
6656 .flush = ath10k_flush,
6657 .tx_last_beacon = ath10k_tx_last_beacon,
6658 .set_antenna = ath10k_set_antenna,
6659 .get_antenna = ath10k_get_antenna,
6660 .reconfig_complete = ath10k_reconfig_complete,
6661 .get_survey = ath10k_get_survey,
6662 .set_bitrate_mask = ath10k_mac_op_set_bitrate_mask,
6663 .sta_rc_update = ath10k_sta_rc_update,
6664 .get_tsf = ath10k_get_tsf,
6665 .ampdu_action = ath10k_ampdu_action,
6666 .get_et_sset_count = ath10k_debug_get_et_sset_count,
6667 .get_et_stats = ath10k_debug_get_et_stats,
6668 .get_et_strings = ath10k_debug_get_et_strings,
6669 .add_chanctx = ath10k_mac_op_add_chanctx,
6670 .remove_chanctx = ath10k_mac_op_remove_chanctx,
6671 .change_chanctx = ath10k_mac_op_change_chanctx,
6672 .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
6673 .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
6674 .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
6676 CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
6679 .suspend = ath10k_wow_op_suspend,
6680 .resume = ath10k_wow_op_resume,
6682 #ifdef CONFIG_MAC80211_DEBUGFS
6683 .sta_add_debugfs = ath10k_sta_add_debugfs,
6687 #define CHAN2G(_channel, _freq, _flags) { \
6688 .band = IEEE80211_BAND_2GHZ, \
6689 .hw_value = (_channel), \
6690 .center_freq = (_freq), \
6691 .flags = (_flags), \
6692 .max_antenna_gain = 0, \
6696 #define CHAN5G(_channel, _freq, _flags) { \
6697 .band = IEEE80211_BAND_5GHZ, \
6698 .hw_value = (_channel), \
6699 .center_freq = (_freq), \
6700 .flags = (_flags), \
6701 .max_antenna_gain = 0, \
6705 static const struct ieee80211_channel ath10k_2ghz_channels[] = {
6715 CHAN2G(10, 2457, 0),
6716 CHAN2G(11, 2462, 0),
6717 CHAN2G(12, 2467, 0),
6718 CHAN2G(13, 2472, 0),
6719 CHAN2G(14, 2484, 0),
6722 static const struct ieee80211_channel ath10k_5ghz_channels[] = {
6723 CHAN5G(36, 5180, 0),
6724 CHAN5G(40, 5200, 0),
6725 CHAN5G(44, 5220, 0),
6726 CHAN5G(48, 5240, 0),
6727 CHAN5G(52, 5260, 0),
6728 CHAN5G(56, 5280, 0),
6729 CHAN5G(60, 5300, 0),
6730 CHAN5G(64, 5320, 0),
6731 CHAN5G(100, 5500, 0),
6732 CHAN5G(104, 5520, 0),
6733 CHAN5G(108, 5540, 0),
6734 CHAN5G(112, 5560, 0),
6735 CHAN5G(116, 5580, 0),
6736 CHAN5G(120, 5600, 0),
6737 CHAN5G(124, 5620, 0),
6738 CHAN5G(128, 5640, 0),
6739 CHAN5G(132, 5660, 0),
6740 CHAN5G(136, 5680, 0),
6741 CHAN5G(140, 5700, 0),
6742 CHAN5G(144, 5720, 0),
6743 CHAN5G(149, 5745, 0),
6744 CHAN5G(153, 5765, 0),
6745 CHAN5G(157, 5785, 0),
6746 CHAN5G(161, 5805, 0),
6747 CHAN5G(165, 5825, 0),
6750 struct ath10k *ath10k_mac_create(size_t priv_size)
6752 struct ieee80211_hw *hw;
6755 hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, &ath10k_ops);
6765 void ath10k_mac_destroy(struct ath10k *ar)
6767 ieee80211_free_hw(ar->hw);
6770 static const struct ieee80211_iface_limit ath10k_if_limits[] = {
6773 .types = BIT(NL80211_IFTYPE_STATION)
6774 | BIT(NL80211_IFTYPE_P2P_CLIENT)
6778 .types = BIT(NL80211_IFTYPE_P2P_GO)
6782 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
6786 .types = BIT(NL80211_IFTYPE_AP)
6787 #ifdef CONFIG_MAC80211_MESH
6788 | BIT(NL80211_IFTYPE_MESH_POINT)
6793 static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
6796 .types = BIT(NL80211_IFTYPE_AP)
6797 #ifdef CONFIG_MAC80211_MESH
6798 | BIT(NL80211_IFTYPE_MESH_POINT)
6803 static const struct ieee80211_iface_combination ath10k_if_comb[] = {
6805 .limits = ath10k_if_limits,
6806 .n_limits = ARRAY_SIZE(ath10k_if_limits),
6807 .max_interfaces = 8,
6808 .num_different_channels = 1,
6809 .beacon_int_infra_match = true,
6813 static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
6815 .limits = ath10k_10x_if_limits,
6816 .n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
6817 .max_interfaces = 8,
6818 .num_different_channels = 1,
6819 .beacon_int_infra_match = true,
6820 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
6821 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
6822 BIT(NL80211_CHAN_WIDTH_20) |
6823 BIT(NL80211_CHAN_WIDTH_40) |
6824 BIT(NL80211_CHAN_WIDTH_80),
6829 static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
6832 .types = BIT(NL80211_IFTYPE_STATION),
6836 .types = BIT(NL80211_IFTYPE_AP) |
6837 #ifdef CONFIG_MAC80211_MESH
6838 BIT(NL80211_IFTYPE_MESH_POINT) |
6840 BIT(NL80211_IFTYPE_P2P_CLIENT) |
6841 BIT(NL80211_IFTYPE_P2P_GO),
6845 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
6849 static const struct ieee80211_iface_limit ath10k_tlv_qcs_if_limit[] = {
6852 .types = BIT(NL80211_IFTYPE_STATION),
6856 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
6860 .types = BIT(NL80211_IFTYPE_AP) |
6861 #ifdef CONFIG_MAC80211_MESH
6862 BIT(NL80211_IFTYPE_MESH_POINT) |
6864 BIT(NL80211_IFTYPE_P2P_GO),
6868 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
6872 static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
6875 .types = BIT(NL80211_IFTYPE_STATION),
6879 .types = BIT(NL80211_IFTYPE_ADHOC),
6883 /* FIXME: This is not thouroughly tested. These combinations may over- or
6884 * underestimate hw/fw capabilities.
6886 static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
6888 .limits = ath10k_tlv_if_limit,
6889 .num_different_channels = 1,
6890 .max_interfaces = 4,
6891 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
6894 .limits = ath10k_tlv_if_limit_ibss,
6895 .num_different_channels = 1,
6896 .max_interfaces = 2,
6897 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
6901 static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
6903 .limits = ath10k_tlv_if_limit,
6904 .num_different_channels = 1,
6905 .max_interfaces = 4,
6906 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
6909 .limits = ath10k_tlv_qcs_if_limit,
6910 .num_different_channels = 2,
6911 .max_interfaces = 4,
6912 .n_limits = ARRAY_SIZE(ath10k_tlv_qcs_if_limit),
6915 .limits = ath10k_tlv_if_limit_ibss,
6916 .num_different_channels = 1,
6917 .max_interfaces = 2,
6918 .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
6922 static const struct ieee80211_iface_limit ath10k_10_4_if_limits[] = {
6925 .types = BIT(NL80211_IFTYPE_STATION),
6929 .types = BIT(NL80211_IFTYPE_AP)
6930 #ifdef CONFIG_MAC80211_MESH
6931 | BIT(NL80211_IFTYPE_MESH_POINT)
6936 static const struct ieee80211_iface_combination ath10k_10_4_if_comb[] = {
6938 .limits = ath10k_10_4_if_limits,
6939 .n_limits = ARRAY_SIZE(ath10k_10_4_if_limits),
6940 .max_interfaces = 16,
6941 .num_different_channels = 1,
6942 .beacon_int_infra_match = true,
6943 #ifdef CONFIG_ATH10K_DFS_CERTIFIED
6944 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
6945 BIT(NL80211_CHAN_WIDTH_20) |
6946 BIT(NL80211_CHAN_WIDTH_40) |
6947 BIT(NL80211_CHAN_WIDTH_80),
6952 static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
6954 struct ieee80211_sta_vht_cap vht_cap = {0};
6959 vht_cap.vht_supported = 1;
6960 vht_cap.cap = ar->vht_cap_info;
6962 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
6963 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
6964 val = ath10k_mac_get_vht_cap_bf_sts(ar);
6965 val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
6966 val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
6971 if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
6972 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
6973 val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
6974 val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
6975 val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
6981 for (i = 0; i < 8; i++) {
6982 if (i < ar->num_rf_chains)
6983 mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2);
6985 mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2);
6988 vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
6989 vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
6994 static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
6997 struct ieee80211_sta_ht_cap ht_cap = {0};
6999 if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
7002 ht_cap.ht_supported = 1;
7003 ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
7004 ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
7005 ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
7006 ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
7007 ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
7009 if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
7010 ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
7012 if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
7013 ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
7015 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
7018 smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
7019 smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
7024 if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
7025 ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
7027 if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
7030 stbc = ar->ht_cap_info;
7031 stbc &= WMI_HT_CAP_RX_STBC;
7032 stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
7033 stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
7034 stbc &= IEEE80211_HT_CAP_RX_STBC;
7039 if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
7040 ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
7042 if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
7043 ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
7045 /* max AMSDU is implicitly taken from vht_cap_info */
7046 if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
7047 ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
7049 for (i = 0; i < ar->num_rf_chains; i++)
7050 ht_cap.mcs.rx_mask[i] = 0xFF;
7052 ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
7057 static void ath10k_get_arvif_iter(void *data, u8 *mac,
7058 struct ieee80211_vif *vif)
7060 struct ath10k_vif_iter *arvif_iter = data;
7061 struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
7063 if (arvif->vdev_id == arvif_iter->vdev_id)
7064 arvif_iter->arvif = arvif;
7067 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
7069 struct ath10k_vif_iter arvif_iter;
7072 memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
7073 arvif_iter.vdev_id = vdev_id;
7075 flags = IEEE80211_IFACE_ITER_RESUME_ALL;
7076 ieee80211_iterate_active_interfaces_atomic(ar->hw,
7078 ath10k_get_arvif_iter,
7080 if (!arvif_iter.arvif) {
7081 ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
7085 return arvif_iter.arvif;
7088 int ath10k_mac_register(struct ath10k *ar)
7090 static const u32 cipher_suites[] = {
7091 WLAN_CIPHER_SUITE_WEP40,
7092 WLAN_CIPHER_SUITE_WEP104,
7093 WLAN_CIPHER_SUITE_TKIP,
7094 WLAN_CIPHER_SUITE_CCMP,
7095 WLAN_CIPHER_SUITE_AES_CMAC,
7097 struct ieee80211_supported_band *band;
7098 struct ieee80211_sta_vht_cap vht_cap;
7099 struct ieee80211_sta_ht_cap ht_cap;
7103 SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
7105 SET_IEEE80211_DEV(ar->hw, ar->dev);
7107 ht_cap = ath10k_get_ht_cap(ar);
7108 vht_cap = ath10k_create_vht_cap(ar);
7110 BUILD_BUG_ON((ARRAY_SIZE(ath10k_2ghz_channels) +
7111 ARRAY_SIZE(ath10k_5ghz_channels)) !=
7114 if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
7115 channels = kmemdup(ath10k_2ghz_channels,
7116 sizeof(ath10k_2ghz_channels),
7123 band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
7124 band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
7125 band->channels = channels;
7126 band->n_bitrates = ath10k_g_rates_size;
7127 band->bitrates = ath10k_g_rates;
7128 band->ht_cap = ht_cap;
7130 /* Enable the VHT support at 2.4 GHz */
7131 band->vht_cap = vht_cap;
7133 ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
7136 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
7137 channels = kmemdup(ath10k_5ghz_channels,
7138 sizeof(ath10k_5ghz_channels),
7145 band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
7146 band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
7147 band->channels = channels;
7148 band->n_bitrates = ath10k_a_rates_size;
7149 band->bitrates = ath10k_a_rates;
7150 band->ht_cap = ht_cap;
7151 band->vht_cap = vht_cap;
7152 ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
7155 ar->hw->wiphy->interface_modes =
7156 BIT(NL80211_IFTYPE_STATION) |
7157 BIT(NL80211_IFTYPE_AP) |
7158 BIT(NL80211_IFTYPE_MESH_POINT);
7160 ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
7161 ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;
7163 if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
7164 ar->hw->wiphy->interface_modes |=
7165 BIT(NL80211_IFTYPE_P2P_DEVICE) |
7166 BIT(NL80211_IFTYPE_P2P_CLIENT) |
7167 BIT(NL80211_IFTYPE_P2P_GO);
7169 ieee80211_hw_set(ar->hw, SIGNAL_DBM);
7170 ieee80211_hw_set(ar->hw, SUPPORTS_PS);
7171 ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS);
7172 ieee80211_hw_set(ar->hw, MFP_CAPABLE);
7173 ieee80211_hw_set(ar->hw, REPORTS_TX_ACK_STATUS);
7174 ieee80211_hw_set(ar->hw, HAS_RATE_CONTROL);
7175 ieee80211_hw_set(ar->hw, AP_LINK_PS);
7176 ieee80211_hw_set(ar->hw, SPECTRUM_MGMT);
7177 ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT);
7178 ieee80211_hw_set(ar->hw, CONNECTION_MONITOR);
7179 ieee80211_hw_set(ar->hw, SUPPORTS_PER_STA_GTK);
7180 ieee80211_hw_set(ar->hw, WANT_MONITOR_VIF);
7181 ieee80211_hw_set(ar->hw, CHANCTX_STA_CSA);
7182 ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
7184 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
7185 ieee80211_hw_set(ar->hw, SW_CRYPTO_CONTROL);
7187 ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
7188 ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
7190 if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
7191 ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
7193 if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
7194 ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
7195 ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
7198 ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
7199 ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
7201 ar->hw->vif_data_size = sizeof(struct ath10k_vif);
7202 ar->hw->sta_data_size = sizeof(struct ath10k_sta);
7204 ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
7206 if (test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)) {
7207 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
7209 /* Firmware delivers WPS/P2P Probe Requests frames to driver so
7210 * that userspace (e.g. wpa_supplicant/hostapd) can generate
7211 * correct Probe Responses. This is more of a hack advert..
7213 ar->hw->wiphy->probe_resp_offload |=
7214 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
7215 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
7216 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
7219 if (test_bit(WMI_SERVICE_TDLS, ar->wmi.svc_map))
7220 ar->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7222 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
7223 ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
7224 ar->hw->wiphy->max_remain_on_channel_duration = 5000;
7226 ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
7227 ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE;
7229 ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;
7231 ret = ath10k_wow_init(ar);
7233 ath10k_warn(ar, "failed to init wow: %d\n", ret);
7237 wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
7240 * on LL hardware queues are managed entirely by the FW
7241 * so we only advertise to mac we can do the queues thing
7243 ar->hw->queues = IEEE80211_MAX_QUEUES;
7245 /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
7246 * something that vdev_ids can't reach so that we don't stop the queue
7249 ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
7251 switch (ar->wmi.op_version) {
7252 case ATH10K_FW_WMI_OP_VERSION_MAIN:
7253 ar->hw->wiphy->iface_combinations = ath10k_if_comb;
7254 ar->hw->wiphy->n_iface_combinations =
7255 ARRAY_SIZE(ath10k_if_comb);
7256 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
7258 case ATH10K_FW_WMI_OP_VERSION_TLV:
7259 if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
7260 ar->hw->wiphy->iface_combinations =
7261 ath10k_tlv_qcs_if_comb;
7262 ar->hw->wiphy->n_iface_combinations =
7263 ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
7265 ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
7266 ar->hw->wiphy->n_iface_combinations =
7267 ARRAY_SIZE(ath10k_tlv_if_comb);
7269 ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
7271 case ATH10K_FW_WMI_OP_VERSION_10_1:
7272 case ATH10K_FW_WMI_OP_VERSION_10_2:
7273 case ATH10K_FW_WMI_OP_VERSION_10_2_4:
7274 ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
7275 ar->hw->wiphy->n_iface_combinations =
7276 ARRAY_SIZE(ath10k_10x_if_comb);
7278 case ATH10K_FW_WMI_OP_VERSION_10_4:
7279 ar->hw->wiphy->iface_combinations = ath10k_10_4_if_comb;
7280 ar->hw->wiphy->n_iface_combinations =
7281 ARRAY_SIZE(ath10k_10_4_if_comb);
7283 case ATH10K_FW_WMI_OP_VERSION_UNSET:
7284 case ATH10K_FW_WMI_OP_VERSION_MAX:
7290 if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
7291 ar->hw->netdev_features = NETIF_F_HW_CSUM;
7293 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
7294 /* Init ath dfs pattern detector */
7295 ar->ath_common.debug_mask = ATH_DBG_DFS;
7296 ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
7299 if (!ar->dfs_detector)
7300 ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
7303 ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
7304 ath10k_reg_notifier);
7306 ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
7307 goto err_dfs_detector_exit;
7310 ar->hw->wiphy->cipher_suites = cipher_suites;
7311 ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
7313 ret = ieee80211_register_hw(ar->hw);
7315 ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
7316 goto err_dfs_detector_exit;
7319 if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
7320 ret = regulatory_hint(ar->hw->wiphy,
7321 ar->ath_common.regulatory.alpha2);
7323 goto err_unregister;
7329 ieee80211_unregister_hw(ar->hw);
7331 err_dfs_detector_exit:
7332 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
7333 ar->dfs_detector->exit(ar->dfs_detector);
7336 kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
7337 kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
7339 SET_IEEE80211_DEV(ar->hw, NULL);
7343 void ath10k_mac_unregister(struct ath10k *ar)
7345 ieee80211_unregister_hw(ar->hw);
7347 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
7348 ar->dfs_detector->exit(ar->dfs_detector);
7350 kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
7351 kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
7353 SET_IEEE80211_DEV(ar->hw, NULL);