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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
8 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 25 | * in the file called COPYING. |
8ca151b5 JB |
26 | * |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | #include <linux/kernel.h> | |
64 | #include <linux/slab.h> | |
65 | #include <linux/skbuff.h> | |
66 | #include <linux/netdevice.h> | |
67 | #include <linux/etherdevice.h> | |
f0c2646a | 68 | #include <linux/ip.h> |
8ca151b5 | 69 | #include <net/mac80211.h> |
f0c2646a | 70 | #include <net/tcp.h> |
8ca151b5 JB |
71 | |
72 | #include "iwl-op-mode.h" | |
73 | #include "iwl-io.h" | |
74 | #include "mvm.h" | |
75 | #include "sta.h" | |
76 | #include "time-event.h" | |
77 | #include "iwl-eeprom-parse.h" | |
78 | #include "fw-api-scan.h" | |
79 | #include "iwl-phy-db.h" | |
80 | ||
81 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
82 | { | |
83 | .max = 1, | |
84 | .types = BIT(NL80211_IFTYPE_STATION) | | |
85 | BIT(NL80211_IFTYPE_AP), | |
86 | }, | |
3c15a0fb JB |
87 | { |
88 | .max = 1, | |
89 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
90 | BIT(NL80211_IFTYPE_P2P_GO), | |
91 | }, | |
92 | { | |
93 | .max = 1, | |
94 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
95 | }, | |
8ca151b5 JB |
96 | }; |
97 | ||
98 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
99 | { | |
100 | .num_different_channels = 1, | |
101 | .max_interfaces = 3, | |
102 | .limits = iwl_mvm_limits, | |
103 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
104 | }, | |
105 | }; | |
106 | ||
f0c2646a JB |
107 | #ifdef CONFIG_PM_SLEEP |
108 | static const struct nl80211_wowlan_tcp_data_token_feature | |
109 | iwl_mvm_wowlan_tcp_token_feature = { | |
110 | .min_len = 0, | |
111 | .max_len = 255, | |
112 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
113 | }; | |
114 | ||
115 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
116 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
117 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
118 | sizeof(struct ethhdr) - | |
119 | sizeof(struct iphdr) - | |
120 | sizeof(struct tcphdr), | |
121 | .data_interval_max = 65535, /* __le16 in API */ | |
122 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
123 | sizeof(struct ethhdr) - | |
124 | sizeof(struct iphdr) - | |
125 | sizeof(struct tcphdr), | |
126 | .seq = true, | |
127 | }; | |
128 | #endif | |
129 | ||
fe0f2de3 IP |
130 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
131 | { | |
132 | int i; | |
133 | ||
134 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
135 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
136 | mvm->phy_ctxts[i].id = i; | |
137 | mvm->phy_ctxts[i].ref = 0; | |
138 | } | |
139 | } | |
140 | ||
8ca151b5 JB |
141 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
142 | { | |
143 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 144 | int num_mac, ret, i; |
8ca151b5 JB |
145 | |
146 | /* Tell mac80211 our characteristics */ | |
147 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
148 | IEEE80211_HW_SPECTRUM_MGMT | | |
149 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
150 | IEEE80211_HW_QUEUE_CONTROL | | |
151 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
152 | IEEE80211_HW_SUPPORTS_PS | |
153 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 154 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed HG |
155 | IEEE80211_HW_TIMING_BEACON_ONLY | |
156 | IEEE80211_HW_CONNECTION_MONITOR; | |
8ca151b5 | 157 | |
398e8c6c IP |
158 | hw->queues = IWL_MVM_FIRST_AGG_QUEUE; |
159 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; | |
8ca151b5 JB |
160 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
161 | ||
162 | /* | |
163 | * Enable 11w if advertised by firmware and software crypto | |
164 | * is not enabled (as the firmware will interpret some mgmt | |
165 | * packets, so enabling it with software crypto isn't safe) | |
166 | */ | |
167 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
168 | !iwlwifi_mod_params.sw_crypto) | |
169 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
170 | ||
171 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); | |
172 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 173 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
174 | |
175 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
176 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
177 | BIT(NL80211_IFTYPE_AP) | | |
178 | BIT(NL80211_IFTYPE_P2P_GO) | | |
179 | BIT(NL80211_IFTYPE_P2P_DEVICE); | |
8ca151b5 JB |
180 | |
181 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
182 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
183 | WIPHY_FLAG_IBSS_RSN; | |
184 | ||
185 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; | |
186 | hw->wiphy->n_iface_combinations = | |
187 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
188 | ||
c451e6d4 | 189 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
190 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
191 | ||
192 | /* Extract MAC address */ | |
193 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
194 | hw->wiphy->addresses = mvm->addresses; | |
195 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
196 | |
197 | /* Extract additional MAC addresses if available */ | |
198 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
199 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
200 | ||
201 | for (i = 1; i < num_mac; i++) { | |
202 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 203 | ETH_ALEN); |
831e85f3 | 204 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
205 | hw->wiphy->n_addresses++; |
206 | } | |
207 | ||
fe0f2de3 IP |
208 | iwl_mvm_reset_phy_ctxts(mvm); |
209 | ||
8ca151b5 JB |
210 | /* we create the 802.11 header and a max-length SSID element */ |
211 | hw->wiphy->max_scan_ie_len = | |
212 | mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
213 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
214 | ||
215 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
216 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
217 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
218 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
219 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
220 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
221 | ||
222 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
223 | ||
ade50652 | 224 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
225 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
226 | else | |
227 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
228 | ||
229 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | | |
230 | NL80211_FEATURE_P2P_GO_OPPPS; | |
231 | ||
232 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
233 | ||
234 | #ifdef CONFIG_PM_SLEEP | |
235 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
236 | mvm->trans->ops->d3_suspend && | |
237 | mvm->trans->ops->d3_resume && | |
238 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
239 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
240 | WIPHY_WOWLAN_DISCONNECT | | |
241 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
242 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 243 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
244 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
245 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
246 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
247 | ||
248 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
249 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
250 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
251 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
252 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
253 | } |
254 | #endif | |
255 | ||
256 | ret = iwl_mvm_leds_init(mvm); | |
257 | if (ret) | |
258 | return ret; | |
259 | ||
260 | return ieee80211_register_hw(mvm->hw); | |
261 | } | |
262 | ||
263 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, | |
264 | struct ieee80211_tx_control *control, | |
265 | struct sk_buff *skb) | |
266 | { | |
267 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
268 | ||
9ee718aa EL |
269 | if (iwl_mvm_is_radio_killed(mvm)) { |
270 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
271 | goto drop; |
272 | } | |
273 | ||
398e8c6c | 274 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
275 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
276 | goto drop; | |
277 | ||
278 | if (control->sta) { | |
279 | if (iwl_mvm_tx_skb(mvm, skb, control->sta)) | |
280 | goto drop; | |
281 | return; | |
282 | } | |
283 | ||
284 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
285 | goto drop; | |
286 | return; | |
287 | drop: | |
288 | ieee80211_free_txskb(hw, skb); | |
289 | } | |
290 | ||
291 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, | |
292 | struct ieee80211_vif *vif, | |
293 | enum ieee80211_ampdu_mlme_action action, | |
294 | struct ieee80211_sta *sta, u16 tid, | |
295 | u16 *ssn, u8 buf_size) | |
296 | { | |
297 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
298 | int ret; | |
299 | ||
300 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
301 | sta->addr, tid, action); | |
302 | ||
303 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
304 | return -EACCES; | |
305 | ||
306 | mutex_lock(&mvm->mutex); | |
307 | ||
308 | switch (action) { | |
309 | case IEEE80211_AMPDU_RX_START: | |
310 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { | |
311 | ret = -EINVAL; | |
312 | break; | |
313 | } | |
314 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
315 | break; | |
316 | case IEEE80211_AMPDU_RX_STOP: | |
317 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
318 | break; | |
319 | case IEEE80211_AMPDU_TX_START: | |
5d158efa EG |
320 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { |
321 | ret = -EINVAL; | |
322 | break; | |
323 | } | |
8ca151b5 JB |
324 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
325 | break; | |
326 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
327 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
328 | break; | |
8ca151b5 JB |
329 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
330 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 331 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
332 | break; |
333 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
334 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
335 | break; | |
336 | default: | |
337 | WARN_ON_ONCE(1); | |
338 | ret = -EINVAL; | |
339 | break; | |
340 | } | |
341 | mutex_unlock(&mvm->mutex); | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
346 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
347 | struct ieee80211_vif *vif) | |
348 | { | |
349 | struct iwl_mvm *mvm = data; | |
350 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
351 | ||
352 | mvmvif->uploaded = false; | |
353 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
354 | ||
355 | /* does this make sense at all? */ | |
356 | mvmvif->color++; | |
357 | ||
358 | spin_lock_bh(&mvm->time_event_lock); | |
359 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
360 | spin_unlock_bh(&mvm->time_event_lock); | |
361 | ||
fe0f2de3 | 362 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
363 | } |
364 | ||
365 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
366 | { | |
367 | iwl_trans_stop_device(mvm->trans); | |
368 | iwl_trans_stop_hw(mvm->trans, false); | |
369 | ||
370 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
371 | ||
372 | /* just in case one was running */ | |
373 | ieee80211_remain_on_channel_expired(mvm->hw); | |
374 | ||
375 | ieee80211_iterate_active_interfaces_atomic( | |
376 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
377 | iwl_mvm_cleanup_iterator, mvm); | |
378 | ||
fe0f2de3 IP |
379 | mvm->p2p_device_vif = NULL; |
380 | ||
381 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
382 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
383 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
384 | ||
385 | ieee80211_wake_queues(mvm->hw); | |
386 | ||
387 | mvm->vif_count = 0; | |
388 | } | |
389 | ||
390 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
391 | { | |
392 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
393 | int ret; | |
394 | ||
395 | mutex_lock(&mvm->mutex); | |
396 | ||
397 | /* Clean up some internal and mac80211 state on restart */ | |
398 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
399 | iwl_mvm_restart_cleanup(mvm); | |
400 | ||
401 | ret = iwl_mvm_up(mvm); | |
402 | mutex_unlock(&mvm->mutex); | |
403 | ||
404 | return ret; | |
405 | } | |
406 | ||
407 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
408 | { | |
409 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
410 | int ret; | |
411 | ||
412 | mutex_lock(&mvm->mutex); | |
413 | ||
414 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
415 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
416 | if (ret) | |
417 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
418 | ret); | |
419 | ||
420 | mutex_unlock(&mvm->mutex); | |
421 | } | |
422 | ||
423 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
424 | { | |
425 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
426 | ||
427 | flush_work(&mvm->async_handlers_wk); | |
428 | ||
429 | mutex_lock(&mvm->mutex); | |
430 | /* async_handlers_wk is now blocked */ | |
431 | ||
432 | /* | |
433 | * The work item could be running or queued if the | |
434 | * ROC time event stops just as we get here. | |
435 | */ | |
436 | cancel_work_sync(&mvm->roc_done_wk); | |
437 | ||
438 | iwl_trans_stop_device(mvm->trans); | |
439 | iwl_trans_stop_hw(mvm->trans, false); | |
440 | ||
441 | iwl_mvm_async_handlers_purge(mvm); | |
442 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
443 | ||
444 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
445 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
446 | ||
447 | mutex_unlock(&mvm->mutex); | |
448 | ||
449 | /* | |
450 | * The worker might have been waiting for the mutex, let it run and | |
451 | * discover that its list is now empty. | |
452 | */ | |
453 | cancel_work_sync(&mvm->async_handlers_wk); | |
454 | } | |
455 | ||
456 | static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac, | |
457 | struct ieee80211_vif *vif) | |
458 | { | |
459 | struct iwl_mvm *mvm = data; | |
460 | int ret; | |
461 | ||
462 | ret = iwl_mvm_power_disable(mvm, vif); | |
463 | if (ret) | |
464 | IWL_ERR(mvm, "failed to disable power management\n"); | |
465 | } | |
466 | ||
467 | static void iwl_mvm_power_update_iterator(void *data, u8 *mac, | |
468 | struct ieee80211_vif *vif) | |
469 | { | |
470 | struct iwl_mvm *mvm = data; | |
471 | ||
472 | iwl_mvm_power_update_mode(mvm, vif); | |
473 | } | |
474 | ||
fe0f2de3 IP |
475 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
476 | { | |
477 | u16 i; | |
478 | ||
479 | lockdep_assert_held(&mvm->mutex); | |
480 | ||
481 | for (i = 0; i < NUM_PHY_CTX; i++) | |
482 | if (!mvm->phy_ctxts[i].ref) | |
483 | return &mvm->phy_ctxts[i]; | |
484 | ||
485 | IWL_ERR(mvm, "No available PHY context\n"); | |
486 | return NULL; | |
487 | } | |
488 | ||
8ca151b5 JB |
489 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
490 | struct ieee80211_vif *vif) | |
491 | { | |
492 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
493 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
494 | int ret; | |
495 | ||
496 | /* | |
497 | * Not much to do here. The stack will not allow interface | |
498 | * types or combinations that we didn't advertise, so we | |
499 | * don't really have to check the types. | |
500 | */ | |
501 | ||
502 | mutex_lock(&mvm->mutex); | |
503 | ||
504 | /* Allocate resources for the MAC context, and add it the the fw */ | |
505 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); | |
506 | if (ret) | |
507 | goto out_unlock; | |
508 | ||
509 | /* | |
510 | * The AP binding flow can be done only after the beacon | |
511 | * template is configured (which happens only in the mac80211 | |
512 | * start_ap() flow), and adding the broadcast station can happen | |
513 | * only after the binding. | |
514 | * In addition, since modifying the MAC before adding a bcast | |
515 | * station is not allowed by the FW, delay the adding of MAC context to | |
516 | * the point where we can also add the bcast station. | |
517 | * In short: there's not much we can do at this point, other than | |
518 | * allocating resources :) | |
519 | */ | |
520 | if (vif->type == NL80211_IFTYPE_AP) { | |
521 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); | |
522 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
523 | qmask); | |
524 | if (ret) { | |
525 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
526 | goto out_release; | |
527 | } | |
528 | ||
529 | goto out_unlock; | |
530 | } | |
531 | ||
532 | /* | |
533 | * TODO: remove this temporary code. | |
534 | * Currently MVM FW supports power management only on single MAC. | |
5ee2b215 AB |
535 | * If new interface added, disable PM on existing interface. |
536 | * P2P device is a special case, since it is handled by FW similary to | |
537 | * scan. If P2P deviced is added, PM remains enabled on existing | |
538 | * interface. | |
8ca151b5 JB |
539 | * Note: the method below does not count the new interface being added |
540 | * at this moment. | |
541 | */ | |
5ee2b215 AB |
542 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
543 | mvm->vif_count++; | |
8ca151b5 JB |
544 | if (mvm->vif_count > 1) { |
545 | IWL_DEBUG_MAC80211(mvm, | |
546 | "Disable power on existing interfaces\n"); | |
5360cfb2 | 547 | ieee80211_iterate_active_interfaces_atomic( |
8ca151b5 JB |
548 | mvm->hw, |
549 | IEEE80211_IFACE_ITER_NORMAL, | |
550 | iwl_mvm_pm_disable_iterator, mvm); | |
551 | } | |
552 | ||
553 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
554 | if (ret) | |
555 | goto out_release; | |
556 | ||
557 | /* | |
558 | * Update power state on the new interface. Admittedly, based on | |
559 | * mac80211 logics this power update will disable power management | |
560 | */ | |
561 | iwl_mvm_power_update_mode(mvm, vif); | |
562 | ||
7df15b1e HG |
563 | /* beacon filtering */ |
564 | if (!mvm->bf_allowed_vif && | |
565 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p){ | |
566 | mvm->bf_allowed_vif = mvmvif; | |
567 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; | |
568 | } | |
569 | ||
570 | ret = iwl_mvm_disable_beacon_filter(mvm, vif); | |
571 | if (ret) | |
572 | goto out_release; | |
573 | ||
8ca151b5 JB |
574 | /* |
575 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
576 | * so a dedicated PHY context is allocated to it and the corresponding | |
577 | * MAC context is bound to it at this stage. | |
578 | */ | |
579 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 580 | |
fe0f2de3 IP |
581 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
582 | if (!mvmvif->phy_ctxt) { | |
583 | ret = -ENOSPC; | |
8ca151b5 | 584 | goto out_remove_mac; |
fe0f2de3 | 585 | } |
8ca151b5 | 586 | |
53a9d61e | 587 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
588 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
589 | if (ret) | |
53a9d61e | 590 | goto out_unref_phy; |
8ca151b5 JB |
591 | |
592 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
593 | if (ret) | |
594 | goto out_unbind; | |
595 | ||
596 | /* Save a pointer to p2p device vif, so it can later be used to | |
597 | * update the p2p device MAC when a GO is started/stopped */ | |
598 | mvm->p2p_device_vif = vif; | |
599 | } | |
600 | ||
63494374 | 601 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
602 | goto out_unlock; |
603 | ||
604 | out_unbind: | |
605 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 606 | out_unref_phy: |
fe0f2de3 | 607 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
608 | out_remove_mac: |
609 | mvmvif->phy_ctxt = NULL; | |
610 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
611 | out_release: | |
612 | /* | |
613 | * TODO: remove this temporary code. | |
614 | * Currently MVM FW supports power management only on single MAC. | |
5ee2b215 | 615 | * Check if only one additional interface remains after releasing |
8ca151b5 JB |
616 | * current one. Update power mode on the remaining interface. |
617 | */ | |
5ee2b215 AB |
618 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
619 | mvm->vif_count--; | |
8ca151b5 JB |
620 | IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", |
621 | mvm->vif_count); | |
622 | if (mvm->vif_count == 1) { | |
623 | ieee80211_iterate_active_interfaces( | |
624 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
625 | iwl_mvm_power_update_iterator, mvm); | |
626 | } | |
627 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
628 | out_unlock: | |
629 | mutex_unlock(&mvm->mutex); | |
630 | ||
631 | return ret; | |
632 | } | |
633 | ||
38a12b5b JB |
634 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
635 | struct ieee80211_vif *vif) | |
8ca151b5 | 636 | { |
8ca151b5 JB |
637 | u32 tfd_msk = 0, ac; |
638 | ||
639 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
640 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
641 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
642 | ||
643 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
644 | tfd_msk |= BIT(vif->cab_queue); | |
645 | ||
646 | if (tfd_msk) { | |
647 | mutex_lock(&mvm->mutex); | |
648 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
649 | mutex_unlock(&mvm->mutex); | |
650 | } | |
651 | ||
652 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
653 | /* | |
654 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
655 | * We assume here that all the packets sent to the OFFCHANNEL | |
656 | * queue are sent in ROC session. | |
657 | */ | |
658 | flush_work(&mvm->roc_done_wk); | |
659 | } else { | |
660 | /* | |
661 | * By now, all the AC queues are empty. The AGG queues are | |
662 | * empty too. We already got all the Tx responses for all the | |
663 | * packets in the queues. The drain work can have been | |
664 | * triggered. Flush it. This work item takes the mutex, so kill | |
665 | * it before we take it. | |
666 | */ | |
667 | flush_work(&mvm->sta_drained_wk); | |
668 | } | |
38a12b5b JB |
669 | } |
670 | ||
671 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
672 | struct ieee80211_vif *vif) | |
673 | { | |
674 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
675 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
676 | ||
677 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
678 | |
679 | mutex_lock(&mvm->mutex); | |
680 | ||
7df15b1e HG |
681 | if (mvm->bf_allowed_vif == mvmvif) { |
682 | mvm->bf_allowed_vif = NULL; | |
683 | vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; | |
684 | } | |
685 | ||
63494374 JB |
686 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
687 | ||
8ca151b5 JB |
688 | /* |
689 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 690 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 JB |
691 | */ |
692 | if (vif->type == NL80211_IFTYPE_AP) { | |
693 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); | |
694 | goto out_release; | |
695 | } | |
696 | ||
697 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
698 | mvm->p2p_device_vif = NULL; | |
699 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
700 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 701 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
702 | mvmvif->phy_ctxt = NULL; |
703 | } | |
704 | ||
705 | /* | |
706 | * TODO: remove this temporary code. | |
707 | * Currently MVM FW supports power management only on single MAC. | |
708 | * Check if only one additional interface remains after removing | |
709 | * current one. Update power mode on the remaining interface. | |
710 | */ | |
5ee2b215 | 711 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 JB |
712 | mvm->vif_count--; |
713 | IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", | |
714 | mvm->vif_count); | |
715 | if (mvm->vif_count == 1) { | |
716 | ieee80211_iterate_active_interfaces( | |
717 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
718 | iwl_mvm_power_update_iterator, mvm); | |
719 | } | |
720 | ||
721 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
722 | ||
723 | out_release: | |
724 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
725 | mutex_unlock(&mvm->mutex); | |
726 | } | |
727 | ||
728 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
729 | { | |
730 | return 0; | |
731 | } | |
732 | ||
733 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
734 | unsigned int changed_flags, | |
735 | unsigned int *total_flags, | |
736 | u64 multicast) | |
737 | { | |
738 | *total_flags = 0; | |
739 | } | |
740 | ||
51b6b9e0 EG |
741 | static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm, |
742 | struct ieee80211_vif *vif) | |
743 | { | |
744 | struct iwl_mcast_filter_cmd mcast_filter_cmd = { | |
745 | .pass_all = 1, | |
746 | }; | |
747 | ||
748 | memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN); | |
749 | ||
750 | return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, | |
751 | sizeof(mcast_filter_cmd), | |
752 | &mcast_filter_cmd); | |
753 | } | |
754 | ||
8ca151b5 JB |
755 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
756 | struct ieee80211_vif *vif, | |
757 | struct ieee80211_bss_conf *bss_conf, | |
758 | u32 changes) | |
759 | { | |
760 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
761 | int ret; | |
762 | ||
763 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
764 | if (ret) | |
765 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
766 | ||
767 | if (changes & BSS_CHANGED_ASSOC) { | |
768 | if (bss_conf->assoc) { | |
769 | /* add quota for this interface */ | |
770 | ret = iwl_mvm_update_quotas(mvm, vif); | |
771 | if (ret) { | |
772 | IWL_ERR(mvm, "failed to update quotas\n"); | |
773 | return; | |
774 | } | |
9166b1ee | 775 | iwl_mvm_bt_coex_vif_assoc(mvm, vif); |
51b6b9e0 | 776 | iwl_mvm_configure_mcast_filter(mvm, vif); |
8ca151b5 JB |
777 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
778 | /* remove AP station now that the MAC is unassoc */ | |
779 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
780 | if (ret) | |
781 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
782 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
783 | /* remove quota for this interface */ | |
784 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
785 | if (ret) | |
786 | IWL_ERR(mvm, "failed to update quotas\n"); | |
787 | } | |
210a544e JB |
788 | } else if (changes & BSS_CHANGED_DTIM_PERIOD) { |
789 | /* | |
790 | * We received a beacon _after_ association so | |
791 | * remove the session protection. | |
792 | */ | |
793 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
794 | &mvmvif->time_event_data); | |
8ca151b5 JB |
795 | } else if (changes & BSS_CHANGED_PS) { |
796 | /* | |
797 | * TODO: remove this temporary code. | |
798 | * Currently MVM FW supports power management only on single | |
799 | * MAC. Avoid power mode update if more than one interface | |
800 | * is active. | |
801 | */ | |
802 | IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", | |
803 | mvm->vif_count); | |
804 | if (mvm->vif_count == 1) { | |
805 | ret = iwl_mvm_power_update_mode(mvm, vif); | |
806 | if (ret) | |
807 | IWL_ERR(mvm, "failed to update power mode\n"); | |
808 | } | |
809 | } | |
810 | } | |
811 | ||
812 | static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
813 | { | |
814 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
815 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
816 | int ret; | |
817 | ||
818 | mutex_lock(&mvm->mutex); | |
819 | ||
820 | /* Send the beacon template */ | |
821 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
822 | if (ret) | |
823 | goto out_unlock; | |
824 | ||
825 | /* Add the mac context */ | |
826 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
827 | if (ret) | |
828 | goto out_unlock; | |
829 | ||
830 | /* Perform the binding */ | |
831 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
832 | if (ret) | |
833 | goto out_remove; | |
834 | ||
835 | mvmvif->ap_active = true; | |
836 | ||
837 | /* Send the bcast station. At this stage the TBTT and DTIM time events | |
838 | * are added and applied to the scheduler */ | |
839 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
840 | if (ret) | |
841 | goto out_unbind; | |
842 | ||
843 | ret = iwl_mvm_update_quotas(mvm, vif); | |
844 | if (ret) | |
845 | goto out_rm_bcast; | |
846 | ||
847 | /* Need to update the P2P Device MAC */ | |
848 | if (vif->p2p && mvm->p2p_device_vif) | |
849 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
850 | ||
851 | mutex_unlock(&mvm->mutex); | |
852 | return 0; | |
853 | ||
854 | out_rm_bcast: | |
855 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
856 | out_unbind: | |
857 | iwl_mvm_binding_remove_vif(mvm, vif); | |
858 | out_remove: | |
859 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
860 | out_unlock: | |
861 | mutex_unlock(&mvm->mutex); | |
862 | return ret; | |
863 | } | |
864 | ||
865 | static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
866 | { | |
867 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
868 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
869 | ||
38a12b5b JB |
870 | iwl_mvm_prepare_mac_removal(mvm, vif); |
871 | ||
8ca151b5 JB |
872 | mutex_lock(&mvm->mutex); |
873 | ||
874 | mvmvif->ap_active = false; | |
875 | ||
876 | /* Need to update the P2P Device MAC */ | |
877 | if (vif->p2p && mvm->p2p_device_vif) | |
878 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
879 | ||
880 | iwl_mvm_update_quotas(mvm, NULL); | |
881 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
882 | iwl_mvm_binding_remove_vif(mvm, vif); | |
883 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
884 | ||
885 | mutex_unlock(&mvm->mutex); | |
886 | } | |
887 | ||
888 | static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm, | |
889 | struct ieee80211_vif *vif, | |
890 | struct ieee80211_bss_conf *bss_conf, | |
891 | u32 changes) | |
892 | { | |
893 | /* Need to send a new beacon template to the FW */ | |
894 | if (changes & BSS_CHANGED_BEACON) { | |
895 | if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
896 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
897 | } | |
898 | } | |
899 | ||
900 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
901 | struct ieee80211_vif *vif, | |
902 | struct ieee80211_bss_conf *bss_conf, | |
903 | u32 changes) | |
904 | { | |
905 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
906 | ||
907 | mutex_lock(&mvm->mutex); | |
908 | ||
909 | switch (vif->type) { | |
910 | case NL80211_IFTYPE_STATION: | |
911 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
912 | break; | |
913 | case NL80211_IFTYPE_AP: | |
914 | iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes); | |
915 | break; | |
916 | default: | |
917 | /* shouldn't happen */ | |
918 | WARN_ON_ONCE(1); | |
919 | } | |
920 | ||
921 | mutex_unlock(&mvm->mutex); | |
922 | } | |
923 | ||
924 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
925 | struct ieee80211_vif *vif, | |
926 | struct cfg80211_scan_request *req) | |
927 | { | |
928 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
929 | int ret; | |
930 | ||
931 | if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS) | |
932 | return -EINVAL; | |
933 | ||
934 | mutex_lock(&mvm->mutex); | |
935 | ||
936 | if (mvm->scan_status == IWL_MVM_SCAN_NONE) | |
937 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
938 | else | |
939 | ret = -EBUSY; | |
940 | ||
941 | mutex_unlock(&mvm->mutex); | |
942 | ||
943 | return ret; | |
944 | } | |
945 | ||
946 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
947 | struct ieee80211_vif *vif) | |
948 | { | |
949 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
950 | ||
951 | mutex_lock(&mvm->mutex); | |
952 | ||
953 | iwl_mvm_cancel_scan(mvm); | |
954 | ||
955 | mutex_unlock(&mvm->mutex); | |
956 | } | |
957 | ||
958 | static void | |
959 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
960 | struct ieee80211_sta *sta, u16 tid, | |
961 | int num_frames, | |
962 | enum ieee80211_frame_release_type reason, | |
963 | bool more_data) | |
964 | { | |
965 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
966 | |
967 | /* TODO: how do we tell the fw to send frames for a specific TID */ | |
968 | ||
969 | /* | |
970 | * The fw will send EOSP notification when the last frame will be | |
971 | * transmitted. | |
972 | */ | |
9cc40712 | 973 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames); |
8ca151b5 JB |
974 | } |
975 | ||
976 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
977 | struct ieee80211_vif *vif, | |
978 | enum sta_notify_cmd cmd, | |
979 | struct ieee80211_sta *sta) | |
980 | { | |
981 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
982 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
983 | ||
984 | switch (cmd) { | |
985 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 986 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 JB |
987 | ieee80211_sta_block_awake(hw, sta, true); |
988 | /* | |
989 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
990 | * queues to this station will not be transmitted. The fw will | |
991 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
992 | */ | |
993 | break; | |
994 | case STA_NOTIFY_AWAKE: | |
881acd89 | 995 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 996 | break; |
9cc40712 | 997 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
998 | break; |
999 | default: | |
1000 | break; | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, | |
1005 | struct ieee80211_vif *vif, | |
1006 | struct ieee80211_sta *sta, | |
1007 | enum ieee80211_sta_state old_state, | |
1008 | enum ieee80211_sta_state new_state) | |
1009 | { | |
1010 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1011 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1012 | int ret; | |
1013 | ||
1014 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1015 | sta->addr, old_state, new_state); | |
1016 | ||
1017 | /* this would be a mac80211 bug ... but don't crash */ | |
1018 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1019 | return -EINVAL; | |
1020 | ||
1021 | /* if a STA is being removed, reuse its ID */ | |
1022 | flush_work(&mvm->sta_drained_wk); | |
1023 | ||
1024 | mutex_lock(&mvm->mutex); | |
1025 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1026 | new_state == IEEE80211_STA_NONE) { | |
1027 | ret = iwl_mvm_add_sta(mvm, vif, sta); | |
1028 | } else if (old_state == IEEE80211_STA_NONE && | |
1029 | new_state == IEEE80211_STA_AUTH) { | |
1030 | ret = 0; | |
1031 | } else if (old_state == IEEE80211_STA_AUTH && | |
1032 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1033 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1034 | if (ret == 0) | |
1035 | iwl_mvm_rs_rate_init(mvm, sta, | |
1036 | mvmvif->phy_ctxt->channel->band); | |
8ca151b5 JB |
1037 | } else if (old_state == IEEE80211_STA_ASSOC && |
1038 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e HG |
1039 | /* enable beacon filtering */ |
1040 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1041 | ret = 0; |
1042 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1043 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e HG |
1044 | /* disable beacon filtering */ |
1045 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1046 | ret = 0; |
1047 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1048 | new_state == IEEE80211_STA_AUTH) { | |
1049 | ret = 0; | |
1050 | } else if (old_state == IEEE80211_STA_AUTH && | |
1051 | new_state == IEEE80211_STA_NONE) { | |
1052 | ret = 0; | |
1053 | } else if (old_state == IEEE80211_STA_NONE && | |
1054 | new_state == IEEE80211_STA_NOTEXIST) { | |
1055 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1056 | } else { | |
1057 | ret = -EIO; | |
1058 | } | |
1059 | mutex_unlock(&mvm->mutex); | |
1060 | ||
1061 | return ret; | |
1062 | } | |
1063 | ||
1064 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1065 | { | |
1066 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1067 | ||
1068 | mvm->rts_threshold = value; | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, | |
1074 | struct ieee80211_vif *vif, u16 ac, | |
1075 | const struct ieee80211_tx_queue_params *params) | |
1076 | { | |
1077 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1078 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1079 | ||
1080 | mvmvif->queue_params[ac] = *params; | |
1081 | ||
1082 | /* | |
1083 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1084 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1085 | */ | |
1086 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1087 | int ret; | |
1088 | ||
1089 | mutex_lock(&mvm->mutex); | |
1090 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
1091 | mutex_unlock(&mvm->mutex); | |
1092 | return ret; | |
1093 | } | |
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1098 | struct ieee80211_vif *vif) | |
1099 | { | |
1100 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1101 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1102 | 200 + vif->bss_conf.beacon_int); | |
1103 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1104 | 100 + vif->bss_conf.beacon_int); | |
1105 | ||
1106 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1107 | return; | |
1108 | ||
1109 | mutex_lock(&mvm->mutex); | |
1110 | /* Try really hard to protect the session and hear a beacon */ | |
1111 | iwl_mvm_protect_session(mvm, vif, duration, min_duration); | |
1112 | mutex_unlock(&mvm->mutex); | |
1113 | } | |
1114 | ||
1115 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, | |
1116 | enum set_key_cmd cmd, | |
1117 | struct ieee80211_vif *vif, | |
1118 | struct ieee80211_sta *sta, | |
1119 | struct ieee80211_key_conf *key) | |
1120 | { | |
1121 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1122 | int ret; | |
1123 | ||
1124 | if (iwlwifi_mod_params.sw_crypto) { | |
1125 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1126 | return -EOPNOTSUPP; | |
1127 | } | |
1128 | ||
1129 | switch (key->cipher) { | |
1130 | case WLAN_CIPHER_SUITE_TKIP: | |
1131 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1132 | /* fall-through */ | |
1133 | case WLAN_CIPHER_SUITE_CCMP: | |
1134 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1135 | break; | |
1136 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1137 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1138 | break; | |
1139 | case WLAN_CIPHER_SUITE_WEP40: | |
1140 | case WLAN_CIPHER_SUITE_WEP104: | |
1141 | /* | |
1142 | * Support for TX only, at least for now, so accept | |
1143 | * the key and do nothing else. Then mac80211 will | |
1144 | * pass it for TX but we don't have to use it for RX. | |
1145 | */ | |
1146 | return 0; | |
1147 | default: | |
1148 | return -EOPNOTSUPP; | |
1149 | } | |
1150 | ||
1151 | mutex_lock(&mvm->mutex); | |
1152 | ||
1153 | switch (cmd) { | |
1154 | case SET_KEY: | |
6caffd4f JB |
1155 | if (vif->type == NL80211_IFTYPE_AP && !sta) { |
1156 | /* GTK on AP interface is a TX-only key, return 0 */ | |
1157 | ret = 0; | |
1158 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1159 | break; | |
1160 | } | |
1161 | ||
8ca151b5 JB |
1162 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1163 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1164 | if (ret) { | |
1165 | IWL_WARN(mvm, "set key failed\n"); | |
1166 | /* | |
1167 | * can't add key for RX, but we don't need it | |
1168 | * in the device for TX so still return 0 | |
1169 | */ | |
6caffd4f | 1170 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1171 | ret = 0; |
1172 | } | |
1173 | ||
1174 | break; | |
1175 | case DISABLE_KEY: | |
6caffd4f JB |
1176 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1177 | ret = 0; | |
1178 | break; | |
1179 | } | |
1180 | ||
8ca151b5 JB |
1181 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
1182 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
1183 | break; | |
1184 | default: | |
1185 | ret = -EINVAL; | |
1186 | } | |
1187 | ||
1188 | mutex_unlock(&mvm->mutex); | |
1189 | return ret; | |
1190 | } | |
1191 | ||
1192 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
1193 | struct ieee80211_vif *vif, | |
1194 | struct ieee80211_key_conf *keyconf, | |
1195 | struct ieee80211_sta *sta, | |
1196 | u32 iv32, u16 *phase1key) | |
1197 | { | |
1198 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1199 | ||
1200 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); | |
1201 | } | |
1202 | ||
1203 | ||
1204 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
1205 | struct ieee80211_vif *vif, | |
1206 | struct ieee80211_channel *channel, | |
d339d5ca IP |
1207 | int duration, |
1208 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
1209 | { |
1210 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 1211 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 1212 | struct cfg80211_chan_def chandef; |
31d385ae IP |
1213 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
1214 | int ret, i; | |
1215 | ||
1216 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
1217 | duration, type); | |
8ca151b5 JB |
1218 | |
1219 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
1220 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
1221 | return -EINVAL; | |
1222 | } | |
1223 | ||
8ca151b5 JB |
1224 | mutex_lock(&mvm->mutex); |
1225 | ||
31d385ae IP |
1226 | for (i = 0; i < NUM_PHY_CTX; i++) { |
1227 | phy_ctxt = &mvm->phy_ctxts[i]; | |
1228 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
1229 | continue; | |
1230 | ||
1231 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
1232 | /* | |
1233 | * Unbind the P2P_DEVICE from the current PHY context, | |
1234 | * and if the PHY context is not used remove it. | |
1235 | */ | |
1236 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1237 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1238 | goto out_unlock; | |
1239 | ||
1240 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1241 | ||
1242 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
1243 | mvmvif->phy_ctxt = phy_ctxt; | |
1244 | ||
1245 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1246 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1247 | goto out_unlock; | |
1248 | ||
1249 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1250 | goto schedule_time_event; | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | /* Need to update the PHY context only if the ROC channel changed */ | |
1255 | if (channel == mvmvif->phy_ctxt->channel) | |
1256 | goto schedule_time_event; | |
1257 | ||
8ca151b5 | 1258 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 1259 | |
31d385ae IP |
1260 | /* |
1261 | * Change the PHY context configuration as it is currently referenced | |
1262 | * only by the P2P Device MAC | |
1263 | */ | |
1264 | if (mvmvif->phy_ctxt->ref == 1) { | |
1265 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
1266 | &chandef, 1, 1); | |
1267 | if (ret) | |
1268 | goto out_unlock; | |
1269 | } else { | |
1270 | /* | |
1271 | * The PHY context is shared with other MACs. Need to remove the | |
1272 | * P2P Device from the binding, allocate an new PHY context and | |
1273 | * create a new binding | |
1274 | */ | |
1275 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
1276 | if (!phy_ctxt) { | |
1277 | ret = -ENOSPC; | |
1278 | goto out_unlock; | |
1279 | } | |
1280 | ||
1281 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
1282 | 1, 1); | |
1283 | if (ret) { | |
1284 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
1285 | goto out_unlock; | |
1286 | } | |
1287 | ||
1288 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
1289 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1290 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1291 | goto out_unlock; | |
1292 | ||
1293 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1294 | ||
1295 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
1296 | mvmvif->phy_ctxt = phy_ctxt; | |
1297 | ||
1298 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1299 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1300 | goto out_unlock; | |
1301 | ||
1302 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1303 | } | |
1304 | ||
1305 | schedule_time_event: | |
8ca151b5 | 1306 | /* Schedule the time events */ |
e635c797 | 1307 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 1308 | |
31d385ae | 1309 | out_unlock: |
8ca151b5 JB |
1310 | mutex_unlock(&mvm->mutex); |
1311 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
1312 | return ret; |
1313 | } | |
1314 | ||
1315 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
1316 | { | |
1317 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1318 | ||
1319 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
1320 | ||
1321 | mutex_lock(&mvm->mutex); | |
1322 | iwl_mvm_stop_p2p_roc(mvm); | |
1323 | mutex_unlock(&mvm->mutex); | |
1324 | ||
1325 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
1330 | struct ieee80211_chanctx_conf *ctx) | |
1331 | { | |
1332 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1333 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1334 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
1335 | int ret; |
1336 | ||
53a9d61e | 1337 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 1338 | |
8ca151b5 | 1339 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
1340 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1341 | if (!phy_ctxt) { | |
1342 | ret = -ENOSPC; | |
1343 | goto out; | |
1344 | } | |
8ca151b5 | 1345 | |
53a9d61e IP |
1346 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, |
1347 | ctx->rx_chains_static, | |
1348 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
1349 | if (ret) { |
1350 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
1351 | goto out; | |
1352 | } | |
8ca151b5 | 1353 | |
53a9d61e | 1354 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
1355 | *phy_ctxt_id = phy_ctxt->id; |
1356 | out: | |
8ca151b5 JB |
1357 | mutex_unlock(&mvm->mutex); |
1358 | return ret; | |
1359 | } | |
1360 | ||
1361 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
1362 | struct ieee80211_chanctx_conf *ctx) | |
1363 | { | |
1364 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1365 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1366 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1367 | |
1368 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 1369 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
1370 | mutex_unlock(&mvm->mutex); |
1371 | } | |
1372 | ||
1373 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
1374 | struct ieee80211_chanctx_conf *ctx, | |
1375 | u32 changed) | |
1376 | { | |
1377 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1378 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1379 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 1380 | |
31d385ae IP |
1381 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
1382 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
1383 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
1384 | IEEE80211_CHANCTX_CHANGE_RADAR)), | |
1385 | "Cannot change PHY. Ref=%d, changed=0x%X\n", | |
1386 | phy_ctxt->ref, changed)) | |
1387 | return; | |
8ca151b5 JB |
1388 | |
1389 | mutex_lock(&mvm->mutex); | |
1390 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, | |
1391 | ctx->rx_chains_static, | |
1392 | ctx->rx_chains_dynamic); | |
1393 | mutex_unlock(&mvm->mutex); | |
1394 | } | |
1395 | ||
1396 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
1397 | struct ieee80211_vif *vif, | |
1398 | struct ieee80211_chanctx_conf *ctx) | |
1399 | { | |
1400 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1401 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1402 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1403 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1404 | int ret; | |
1405 | ||
1406 | mutex_lock(&mvm->mutex); | |
1407 | ||
fe0f2de3 | 1408 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
1409 | |
1410 | switch (vif->type) { | |
1411 | case NL80211_IFTYPE_AP: | |
1412 | /* | |
1413 | * The AP binding flow is handled as part of the start_ap flow | |
1414 | * (in bss_info_changed). | |
1415 | */ | |
1416 | ret = 0; | |
1417 | goto out_unlock; | |
1418 | case NL80211_IFTYPE_STATION: | |
1419 | case NL80211_IFTYPE_ADHOC: | |
1420 | case NL80211_IFTYPE_MONITOR: | |
1421 | break; | |
1422 | default: | |
1423 | ret = -EINVAL; | |
1424 | goto out_unlock; | |
1425 | } | |
1426 | ||
1427 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1428 | if (ret) | |
1429 | goto out_unlock; | |
1430 | ||
1431 | /* | |
1432 | * Setting the quota at this stage is only required for monitor | |
1433 | * interfaces. For the other types, the bss_info changed flow | |
1434 | * will handle quota settings. | |
1435 | */ | |
1436 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 1437 | mvmvif->monitor_active = true; |
8ca151b5 JB |
1438 | ret = iwl_mvm_update_quotas(mvm, vif); |
1439 | if (ret) | |
1440 | goto out_remove_binding; | |
1441 | } | |
1442 | ||
1443 | goto out_unlock; | |
1444 | ||
1445 | out_remove_binding: | |
1446 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1447 | out_unlock: | |
1448 | mutex_unlock(&mvm->mutex); | |
1449 | if (ret) | |
1450 | mvmvif->phy_ctxt = NULL; | |
1451 | return ret; | |
1452 | } | |
1453 | ||
1454 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
1455 | struct ieee80211_vif *vif, | |
1456 | struct ieee80211_chanctx_conf *ctx) | |
1457 | { | |
1458 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1459 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1460 | ||
1461 | mutex_lock(&mvm->mutex); | |
1462 | ||
1463 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
1464 | ||
1465 | if (vif->type == NL80211_IFTYPE_AP) | |
1466 | goto out_unlock; | |
1467 | ||
8ca151b5 JB |
1468 | switch (vif->type) { |
1469 | case NL80211_IFTYPE_MONITOR: | |
1e1391ca IP |
1470 | mvmvif->monitor_active = false; |
1471 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 JB |
1472 | break; |
1473 | default: | |
1474 | break; | |
1475 | } | |
1476 | ||
1e1391ca | 1477 | iwl_mvm_binding_remove_vif(mvm, vif); |
8ca151b5 JB |
1478 | out_unlock: |
1479 | mvmvif->phy_ctxt = NULL; | |
1480 | mutex_unlock(&mvm->mutex); | |
1481 | } | |
1482 | ||
1483 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
1484 | struct ieee80211_sta *sta, | |
1485 | bool set) | |
1486 | { | |
1487 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1488 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1489 | ||
1490 | if (!mvm_sta || !mvm_sta->vif) { | |
1491 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
1492 | return -EINVAL; | |
1493 | } | |
1494 | ||
1495 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
1496 | } | |
1497 | ||
2b76ef13 EG |
1498 | static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw, |
1499 | struct ieee80211_vif *vif, | |
1500 | enum ieee80211_rssi_event rssi_event) | |
1501 | { | |
1502 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1503 | ||
1504 | iwl_mvm_bt_rssi_event(mvm, vif, rssi_event); | |
1505 | } | |
1506 | ||
8ca151b5 JB |
1507 | struct ieee80211_ops iwl_mvm_hw_ops = { |
1508 | .tx = iwl_mvm_mac_tx, | |
1509 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
1510 | .start = iwl_mvm_mac_start, | |
1511 | .restart_complete = iwl_mvm_mac_restart_complete, | |
1512 | .stop = iwl_mvm_mac_stop, | |
1513 | .add_interface = iwl_mvm_mac_add_interface, | |
1514 | .remove_interface = iwl_mvm_mac_remove_interface, | |
1515 | .config = iwl_mvm_mac_config, | |
1516 | .configure_filter = iwl_mvm_configure_filter, | |
1517 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
1518 | .hw_scan = iwl_mvm_mac_hw_scan, | |
1519 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1520 | .sta_state = iwl_mvm_mac_sta_state, | |
1521 | .sta_notify = iwl_mvm_mac_sta_notify, | |
1522 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
1523 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, | |
1524 | .conf_tx = iwl_mvm_mac_conf_tx, | |
1525 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
1526 | .set_key = iwl_mvm_mac_set_key, | |
1527 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
1528 | .remain_on_channel = iwl_mvm_roc, | |
1529 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
2b76ef13 | 1530 | .rssi_callback = iwl_mvm_mac_rssi_callback, |
8ca151b5 JB |
1531 | |
1532 | .add_chanctx = iwl_mvm_add_chanctx, | |
1533 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
1534 | .change_chanctx = iwl_mvm_change_chanctx, | |
1535 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
1536 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
1537 | ||
1538 | .start_ap = iwl_mvm_start_ap, | |
1539 | .stop_ap = iwl_mvm_stop_ap, | |
1540 | ||
1541 | .set_tim = iwl_mvm_set_tim, | |
1542 | ||
1543 | #ifdef CONFIG_PM_SLEEP | |
1544 | /* look at d3.c */ | |
1545 | .suspend = iwl_mvm_suspend, | |
1546 | .resume = iwl_mvm_resume, | |
1547 | .set_wakeup = iwl_mvm_set_wakeup, | |
1548 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
1549 | #if IS_ENABLED(CONFIG_IPV6) | |
1550 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
1551 | #endif | |
1552 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
1553 | #endif | |
1554 | }; |