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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, | |
8eb38710 | 84 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 85 | }, |
3c15a0fb JB |
86 | { |
87 | .max = 1, | |
8eb38710 IP |
88 | .types = BIT(NL80211_IFTYPE_AP) | |
89 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
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 | 155 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be EG |
156 | IEEE80211_HW_CONNECTION_MONITOR | |
157 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
e3c588ec AB |
158 | IEEE80211_HW_SUPPORTS_STATIC_SMPS | |
159 | IEEE80211_HW_SUPPORTS_UAPSD; | |
8ca151b5 | 160 | |
398e8c6c IP |
161 | hw->queues = IWL_MVM_FIRST_AGG_QUEUE; |
162 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; | |
8ca151b5 JB |
163 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
164 | ||
165 | /* | |
166 | * Enable 11w if advertised by firmware and software crypto | |
167 | * is not enabled (as the firmware will interpret some mgmt | |
168 | * packets, so enabling it with software crypto isn't safe) | |
169 | */ | |
170 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
171 | !iwlwifi_mod_params.sw_crypto) | |
172 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
173 | ||
174 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); | |
175 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 176 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
177 | |
178 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
179 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
180 | BIT(NL80211_IFTYPE_AP) | | |
181 | BIT(NL80211_IFTYPE_P2P_GO) | | |
182 | BIT(NL80211_IFTYPE_P2P_DEVICE); | |
8ca151b5 JB |
183 | |
184 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
185 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
186 | WIPHY_FLAG_IBSS_RSN; | |
187 | ||
188 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; | |
189 | hw->wiphy->n_iface_combinations = | |
190 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
191 | ||
c451e6d4 | 192 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 193 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
e3c588ec AB |
194 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; |
195 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 JB |
196 | |
197 | /* Extract MAC address */ | |
198 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
199 | hw->wiphy->addresses = mvm->addresses; | |
200 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
201 | |
202 | /* Extract additional MAC addresses if available */ | |
203 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
204 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
205 | ||
206 | for (i = 1; i < num_mac; i++) { | |
207 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 208 | ETH_ALEN); |
831e85f3 | 209 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
210 | hw->wiphy->n_addresses++; |
211 | } | |
212 | ||
fe0f2de3 IP |
213 | iwl_mvm_reset_phy_ctxts(mvm); |
214 | ||
8ca151b5 JB |
215 | /* we create the 802.11 header and a max-length SSID element */ |
216 | hw->wiphy->max_scan_ie_len = | |
217 | mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
218 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
219 | ||
220 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
221 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
222 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
223 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
224 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
225 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
226 | ||
227 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
228 | ||
ade50652 | 229 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
230 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
231 | else | |
232 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
233 | ||
234 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | | |
235 | NL80211_FEATURE_P2P_GO_OPPPS; | |
236 | ||
237 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
238 | ||
239 | #ifdef CONFIG_PM_SLEEP | |
240 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
241 | mvm->trans->ops->d3_suspend && | |
242 | mvm->trans->ops->d3_resume && | |
243 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
244 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
245 | WIPHY_WOWLAN_DISCONNECT | | |
246 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
247 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 248 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
249 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
250 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
251 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
252 | ||
253 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
254 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
255 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
256 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
257 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
258 | } |
259 | #endif | |
260 | ||
261 | ret = iwl_mvm_leds_init(mvm); | |
262 | if (ret) | |
263 | return ret; | |
264 | ||
b7327d89 EG |
265 | ret = ieee80211_register_hw(mvm->hw); |
266 | if (ret) | |
267 | iwl_mvm_leds_exit(mvm); | |
268 | ||
269 | return ret; | |
8ca151b5 JB |
270 | } |
271 | ||
272 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, | |
273 | struct ieee80211_tx_control *control, | |
274 | struct sk_buff *skb) | |
275 | { | |
276 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
277 | ||
9ee718aa EL |
278 | if (iwl_mvm_is_radio_killed(mvm)) { |
279 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
280 | goto drop; |
281 | } | |
282 | ||
398e8c6c | 283 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
284 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
285 | goto drop; | |
286 | ||
287 | if (control->sta) { | |
288 | if (iwl_mvm_tx_skb(mvm, skb, control->sta)) | |
289 | goto drop; | |
290 | return; | |
291 | } | |
292 | ||
293 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
294 | goto drop; | |
295 | return; | |
296 | drop: | |
297 | ieee80211_free_txskb(hw, skb); | |
298 | } | |
299 | ||
300 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, | |
301 | struct ieee80211_vif *vif, | |
302 | enum ieee80211_ampdu_mlme_action action, | |
303 | struct ieee80211_sta *sta, u16 tid, | |
304 | u16 *ssn, u8 buf_size) | |
305 | { | |
306 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
307 | int ret; | |
308 | ||
309 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
310 | sta->addr, tid, action); | |
311 | ||
312 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
313 | return -EACCES; | |
314 | ||
315 | mutex_lock(&mvm->mutex); | |
316 | ||
317 | switch (action) { | |
318 | case IEEE80211_AMPDU_RX_START: | |
319 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { | |
320 | ret = -EINVAL; | |
321 | break; | |
322 | } | |
323 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
324 | break; | |
325 | case IEEE80211_AMPDU_RX_STOP: | |
326 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
327 | break; | |
328 | case IEEE80211_AMPDU_TX_START: | |
5d158efa EG |
329 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { |
330 | ret = -EINVAL; | |
331 | break; | |
332 | } | |
8ca151b5 JB |
333 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
334 | break; | |
335 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
336 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
337 | break; | |
8ca151b5 JB |
338 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
339 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 340 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
341 | break; |
342 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
343 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
344 | break; | |
345 | default: | |
346 | WARN_ON_ONCE(1); | |
347 | ret = -EINVAL; | |
348 | break; | |
349 | } | |
350 | mutex_unlock(&mvm->mutex); | |
351 | ||
352 | return ret; | |
353 | } | |
354 | ||
355 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
356 | struct ieee80211_vif *vif) | |
357 | { | |
358 | struct iwl_mvm *mvm = data; | |
359 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
360 | ||
361 | mvmvif->uploaded = false; | |
362 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
363 | ||
364 | /* does this make sense at all? */ | |
365 | mvmvif->color++; | |
366 | ||
367 | spin_lock_bh(&mvm->time_event_lock); | |
368 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
369 | spin_unlock_bh(&mvm->time_event_lock); | |
370 | ||
fe0f2de3 | 371 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
372 | } |
373 | ||
374 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
375 | { | |
376 | iwl_trans_stop_device(mvm->trans); | |
377 | iwl_trans_stop_hw(mvm->trans, false); | |
378 | ||
379 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
380 | ||
381 | /* just in case one was running */ | |
382 | ieee80211_remain_on_channel_expired(mvm->hw); | |
383 | ||
384 | ieee80211_iterate_active_interfaces_atomic( | |
385 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
386 | iwl_mvm_cleanup_iterator, mvm); | |
387 | ||
fe0f2de3 IP |
388 | mvm->p2p_device_vif = NULL; |
389 | ||
390 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
391 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
392 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
393 | ||
394 | ieee80211_wake_queues(mvm->hw); | |
395 | ||
396 | mvm->vif_count = 0; | |
113a0447 | 397 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
398 | } |
399 | ||
400 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
401 | { | |
402 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
403 | int ret; | |
404 | ||
405 | mutex_lock(&mvm->mutex); | |
406 | ||
407 | /* Clean up some internal and mac80211 state on restart */ | |
408 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
409 | iwl_mvm_restart_cleanup(mvm); | |
410 | ||
411 | ret = iwl_mvm_up(mvm); | |
412 | mutex_unlock(&mvm->mutex); | |
413 | ||
414 | return ret; | |
415 | } | |
416 | ||
417 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
418 | { | |
419 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
420 | int ret; | |
421 | ||
422 | mutex_lock(&mvm->mutex); | |
423 | ||
424 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
425 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
426 | if (ret) | |
427 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
428 | ret); | |
429 | ||
430 | mutex_unlock(&mvm->mutex); | |
431 | } | |
432 | ||
433 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
434 | { | |
435 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
436 | ||
437 | flush_work(&mvm->async_handlers_wk); | |
438 | ||
439 | mutex_lock(&mvm->mutex); | |
440 | /* async_handlers_wk is now blocked */ | |
441 | ||
442 | /* | |
443 | * The work item could be running or queued if the | |
444 | * ROC time event stops just as we get here. | |
445 | */ | |
446 | cancel_work_sync(&mvm->roc_done_wk); | |
447 | ||
448 | iwl_trans_stop_device(mvm->trans); | |
449 | iwl_trans_stop_hw(mvm->trans, false); | |
450 | ||
451 | iwl_mvm_async_handlers_purge(mvm); | |
452 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
453 | ||
454 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
455 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
456 | ||
457 | mutex_unlock(&mvm->mutex); | |
458 | ||
459 | /* | |
460 | * The worker might have been waiting for the mutex, let it run and | |
461 | * discover that its list is now empty. | |
462 | */ | |
463 | cancel_work_sync(&mvm->async_handlers_wk); | |
464 | } | |
465 | ||
466 | static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac, | |
467 | struct ieee80211_vif *vif) | |
468 | { | |
469 | struct iwl_mvm *mvm = data; | |
470 | int ret; | |
471 | ||
472 | ret = iwl_mvm_power_disable(mvm, vif); | |
473 | if (ret) | |
474 | IWL_ERR(mvm, "failed to disable power management\n"); | |
475 | } | |
476 | ||
477 | static void iwl_mvm_power_update_iterator(void *data, u8 *mac, | |
478 | struct ieee80211_vif *vif) | |
479 | { | |
480 | struct iwl_mvm *mvm = data; | |
481 | ||
482 | iwl_mvm_power_update_mode(mvm, vif); | |
483 | } | |
484 | ||
fe0f2de3 IP |
485 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
486 | { | |
487 | u16 i; | |
488 | ||
489 | lockdep_assert_held(&mvm->mutex); | |
490 | ||
491 | for (i = 0; i < NUM_PHY_CTX; i++) | |
492 | if (!mvm->phy_ctxts[i].ref) | |
493 | return &mvm->phy_ctxts[i]; | |
494 | ||
495 | IWL_ERR(mvm, "No available PHY context\n"); | |
496 | return NULL; | |
497 | } | |
498 | ||
8ca151b5 JB |
499 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
500 | struct ieee80211_vif *vif) | |
501 | { | |
502 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
503 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
504 | int ret; | |
505 | ||
506 | /* | |
507 | * Not much to do here. The stack will not allow interface | |
508 | * types or combinations that we didn't advertise, so we | |
509 | * don't really have to check the types. | |
510 | */ | |
511 | ||
512 | mutex_lock(&mvm->mutex); | |
513 | ||
e89044d7 | 514 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
515 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
516 | if (ret) | |
517 | goto out_unlock; | |
518 | ||
ea183d02 IP |
519 | /* |
520 | * TODO: remove this temporary code. | |
521 | * Currently MVM FW supports power management only on single MAC. | |
522 | * If new interface added, disable PM on existing interface. | |
523 | * P2P device is a special case, since it is handled by FW similary to | |
524 | * scan. If P2P deviced is added, PM remains enabled on existing | |
525 | * interface. | |
526 | * Note: the method below does not count the new interface being added | |
527 | * at this moment. | |
528 | */ | |
529 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) | |
530 | mvm->vif_count++; | |
531 | if (mvm->vif_count > 1) { | |
532 | IWL_DEBUG_MAC80211(mvm, | |
533 | "Disable power on existing interfaces\n"); | |
534 | ieee80211_iterate_active_interfaces_atomic( | |
535 | mvm->hw, | |
536 | IEEE80211_IFACE_ITER_NORMAL, | |
537 | iwl_mvm_pm_disable_iterator, mvm); | |
538 | } | |
539 | ||
8ca151b5 JB |
540 | /* |
541 | * The AP binding flow can be done only after the beacon | |
542 | * template is configured (which happens only in the mac80211 | |
543 | * start_ap() flow), and adding the broadcast station can happen | |
544 | * only after the binding. | |
545 | * In addition, since modifying the MAC before adding a bcast | |
546 | * station is not allowed by the FW, delay the adding of MAC context to | |
547 | * the point where we can also add the bcast station. | |
548 | * In short: there's not much we can do at this point, other than | |
549 | * allocating resources :) | |
550 | */ | |
551 | if (vif->type == NL80211_IFTYPE_AP) { | |
552 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); | |
553 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
554 | qmask); | |
555 | if (ret) { | |
556 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
557 | goto out_release; | |
558 | } | |
559 | ||
77740cb4 | 560 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
561 | goto out_unlock; |
562 | } | |
563 | ||
8ca151b5 JB |
564 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
565 | if (ret) | |
566 | goto out_release; | |
567 | ||
568 | /* | |
569 | * Update power state on the new interface. Admittedly, based on | |
570 | * mac80211 logics this power update will disable power management | |
571 | */ | |
572 | iwl_mvm_power_update_mode(mvm, vif); | |
573 | ||
7df15b1e | 574 | /* beacon filtering */ |
bd3351ba EP |
575 | ret = iwl_mvm_disable_beacon_filter(mvm, vif); |
576 | if (ret) | |
577 | goto out_remove_mac; | |
578 | ||
7df15b1e | 579 | if (!mvm->bf_allowed_vif && |
5dca7c24 HG |
580 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p && |
581 | mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){ | |
7df15b1e | 582 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
583 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
584 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
585 | } |
586 | ||
8ca151b5 JB |
587 | /* |
588 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
589 | * so a dedicated PHY context is allocated to it and the corresponding | |
590 | * MAC context is bound to it at this stage. | |
591 | */ | |
592 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 593 | |
fe0f2de3 IP |
594 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
595 | if (!mvmvif->phy_ctxt) { | |
596 | ret = -ENOSPC; | |
bd3351ba | 597 | goto out_free_bf; |
fe0f2de3 | 598 | } |
8ca151b5 | 599 | |
53a9d61e | 600 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
601 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
602 | if (ret) | |
53a9d61e | 603 | goto out_unref_phy; |
8ca151b5 JB |
604 | |
605 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
606 | if (ret) | |
607 | goto out_unbind; | |
608 | ||
609 | /* Save a pointer to p2p device vif, so it can later be used to | |
610 | * update the p2p device MAC when a GO is started/stopped */ | |
611 | mvm->p2p_device_vif = vif; | |
612 | } | |
613 | ||
63494374 | 614 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
615 | goto out_unlock; |
616 | ||
617 | out_unbind: | |
618 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 619 | out_unref_phy: |
fe0f2de3 | 620 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
621 | out_free_bf: |
622 | if (mvm->bf_allowed_vif == mvmvif) { | |
623 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
624 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
625 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 626 | } |
8ca151b5 JB |
627 | out_remove_mac: |
628 | mvmvif->phy_ctxt = NULL; | |
629 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
630 | out_release: | |
5ee2b215 AB |
631 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
632 | mvm->vif_count--; | |
4bf881f5 AB |
633 | ieee80211_iterate_active_interfaces( |
634 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
635 | iwl_mvm_power_update_iterator, mvm); | |
8ca151b5 JB |
636 | iwl_mvm_mac_ctxt_release(mvm, vif); |
637 | out_unlock: | |
638 | mutex_unlock(&mvm->mutex); | |
639 | ||
640 | return ret; | |
641 | } | |
642 | ||
38a12b5b JB |
643 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
644 | struct ieee80211_vif *vif) | |
8ca151b5 | 645 | { |
8ca151b5 JB |
646 | u32 tfd_msk = 0, ac; |
647 | ||
648 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
649 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
650 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
651 | ||
652 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
653 | tfd_msk |= BIT(vif->cab_queue); | |
654 | ||
655 | if (tfd_msk) { | |
656 | mutex_lock(&mvm->mutex); | |
657 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
658 | mutex_unlock(&mvm->mutex); | |
659 | } | |
660 | ||
661 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
662 | /* | |
663 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
664 | * We assume here that all the packets sent to the OFFCHANNEL | |
665 | * queue are sent in ROC session. | |
666 | */ | |
667 | flush_work(&mvm->roc_done_wk); | |
668 | } else { | |
669 | /* | |
670 | * By now, all the AC queues are empty. The AGG queues are | |
671 | * empty too. We already got all the Tx responses for all the | |
672 | * packets in the queues. The drain work can have been | |
0742a75a | 673 | * triggered. Flush it. |
8ca151b5 JB |
674 | */ |
675 | flush_work(&mvm->sta_drained_wk); | |
676 | } | |
38a12b5b JB |
677 | } |
678 | ||
679 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
680 | struct ieee80211_vif *vif) | |
681 | { | |
682 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
683 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
684 | ||
685 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
686 | |
687 | mutex_lock(&mvm->mutex); | |
688 | ||
7df15b1e HG |
689 | if (mvm->bf_allowed_vif == mvmvif) { |
690 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
691 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
692 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
693 | } |
694 | ||
63494374 JB |
695 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
696 | ||
8ca151b5 JB |
697 | /* |
698 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 699 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 JB |
700 | */ |
701 | if (vif->type == NL80211_IFTYPE_AP) { | |
702 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); | |
703 | goto out_release; | |
704 | } | |
705 | ||
706 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
707 | mvm->p2p_device_vif = NULL; | |
708 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
709 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 710 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
711 | mvmvif->phy_ctxt = NULL; |
712 | } | |
713 | ||
714 | /* | |
715 | * TODO: remove this temporary code. | |
716 | * Currently MVM FW supports power management only on single MAC. | |
717 | * Check if only one additional interface remains after removing | |
718 | * current one. Update power mode on the remaining interface. | |
719 | */ | |
5ee2b215 | 720 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 JB |
721 | mvm->vif_count--; |
722 | IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", | |
723 | mvm->vif_count); | |
724 | if (mvm->vif_count == 1) { | |
725 | ieee80211_iterate_active_interfaces( | |
726 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
727 | iwl_mvm_power_update_iterator, mvm); | |
728 | } | |
729 | ||
730 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
731 | ||
732 | out_release: | |
733 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
734 | mutex_unlock(&mvm->mutex); | |
735 | } | |
736 | ||
88f2fd73 MG |
737 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
738 | s8 tx_power) | |
739 | { | |
740 | /* FW is in charge of regulatory enforcement */ | |
741 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
742 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
743 | .pwr_restriction = cpu_to_le16(tx_power), | |
744 | }; | |
745 | ||
746 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC, | |
747 | sizeof(reduce_txpwr_cmd), | |
748 | &reduce_txpwr_cmd); | |
749 | } | |
750 | ||
8ca151b5 JB |
751 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) |
752 | { | |
753 | return 0; | |
754 | } | |
755 | ||
756 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
757 | unsigned int changed_flags, | |
758 | unsigned int *total_flags, | |
759 | u64 multicast) | |
760 | { | |
761 | *total_flags = 0; | |
762 | } | |
763 | ||
51b6b9e0 EG |
764 | static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm, |
765 | struct ieee80211_vif *vif) | |
766 | { | |
767 | struct iwl_mcast_filter_cmd mcast_filter_cmd = { | |
768 | .pass_all = 1, | |
769 | }; | |
770 | ||
771 | memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN); | |
772 | ||
773 | return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, | |
774 | sizeof(mcast_filter_cmd), | |
775 | &mcast_filter_cmd); | |
776 | } | |
777 | ||
8ca151b5 JB |
778 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
779 | struct ieee80211_vif *vif, | |
780 | struct ieee80211_bss_conf *bss_conf, | |
781 | u32 changes) | |
782 | { | |
783 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
784 | int ret; | |
785 | ||
786 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
787 | if (ret) | |
788 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
789 | ||
790 | if (changes & BSS_CHANGED_ASSOC) { | |
791 | if (bss_conf->assoc) { | |
792 | /* add quota for this interface */ | |
793 | ret = iwl_mvm_update_quotas(mvm, vif); | |
794 | if (ret) { | |
795 | IWL_ERR(mvm, "failed to update quotas\n"); | |
796 | return; | |
797 | } | |
51b6b9e0 | 798 | iwl_mvm_configure_mcast_filter(mvm, vif); |
8ca151b5 JB |
799 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
800 | /* remove AP station now that the MAC is unassoc */ | |
801 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
802 | if (ret) | |
803 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
804 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
805 | /* remove quota for this interface */ | |
806 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
807 | if (ret) | |
808 | IWL_ERR(mvm, "failed to update quotas\n"); | |
809 | } | |
a20fd398 AO |
810 | |
811 | /* reset rssi values */ | |
812 | mvmvif->bf_data.ave_beacon_signal = 0; | |
813 | ||
e811ada7 AB |
814 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD)) { |
815 | /* Workaround for FW bug, otherwise FW disables device | |
816 | * power save upon disassociation | |
817 | */ | |
818 | ret = iwl_mvm_power_update_mode(mvm, vif); | |
819 | if (ret) | |
820 | IWL_ERR(mvm, "failed to update power mode\n"); | |
821 | } | |
41069b46 | 822 | iwl_mvm_bt_coex_vif_assoc(mvm, vif); |
989c6505 | 823 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
824 | /* |
825 | * We received a beacon _after_ association so | |
826 | * remove the session protection. | |
827 | */ | |
828 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
829 | &mvmvif->time_event_data); | |
e3c588ec | 830 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_QOS)) { |
4bf881f5 AB |
831 | ret = iwl_mvm_power_update_mode(mvm, vif); |
832 | if (ret) | |
833 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 834 | } |
88f2fd73 MG |
835 | if (changes & BSS_CHANGED_TXPOWER) { |
836 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
837 | bss_conf->txpower); | |
838 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
839 | } | |
a20fd398 AO |
840 | |
841 | if (changes & BSS_CHANGED_CQM) { | |
842 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed"); | |
843 | /* reset cqm events tracking */ | |
844 | mvmvif->bf_data.last_cqm_event = 0; | |
845 | ret = iwl_mvm_update_beacon_filter(mvm, vif); | |
846 | if (ret) | |
847 | IWL_ERR(mvm, "failed to update CQM thresholds\n"); | |
848 | } | |
8ca151b5 JB |
849 | } |
850 | ||
851 | static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
852 | { | |
853 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
854 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
855 | int ret; | |
856 | ||
857 | mutex_lock(&mvm->mutex); | |
858 | ||
859 | /* Send the beacon template */ | |
860 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
861 | if (ret) | |
862 | goto out_unlock; | |
863 | ||
864 | /* Add the mac context */ | |
865 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
866 | if (ret) | |
867 | goto out_unlock; | |
868 | ||
869 | /* Perform the binding */ | |
870 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
871 | if (ret) | |
872 | goto out_remove; | |
873 | ||
874 | mvmvif->ap_active = true; | |
875 | ||
876 | /* Send the bcast station. At this stage the TBTT and DTIM time events | |
877 | * are added and applied to the scheduler */ | |
878 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
879 | if (ret) | |
880 | goto out_unbind; | |
881 | ||
882 | ret = iwl_mvm_update_quotas(mvm, vif); | |
883 | if (ret) | |
884 | goto out_rm_bcast; | |
885 | ||
886 | /* Need to update the P2P Device MAC */ | |
887 | if (vif->p2p && mvm->p2p_device_vif) | |
888 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
889 | ||
890 | mutex_unlock(&mvm->mutex); | |
891 | return 0; | |
892 | ||
893 | out_rm_bcast: | |
894 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
895 | out_unbind: | |
896 | iwl_mvm_binding_remove_vif(mvm, vif); | |
897 | out_remove: | |
898 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
899 | out_unlock: | |
900 | mutex_unlock(&mvm->mutex); | |
901 | return ret; | |
902 | } | |
903 | ||
904 | static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
905 | { | |
906 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
907 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
908 | ||
38a12b5b JB |
909 | iwl_mvm_prepare_mac_removal(mvm, vif); |
910 | ||
8ca151b5 JB |
911 | mutex_lock(&mvm->mutex); |
912 | ||
913 | mvmvif->ap_active = false; | |
914 | ||
915 | /* Need to update the P2P Device MAC */ | |
916 | if (vif->p2p && mvm->p2p_device_vif) | |
917 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
918 | ||
919 | iwl_mvm_update_quotas(mvm, NULL); | |
920 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
921 | iwl_mvm_binding_remove_vif(mvm, vif); | |
922 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
923 | ||
924 | mutex_unlock(&mvm->mutex); | |
925 | } | |
926 | ||
927 | static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm, | |
928 | struct ieee80211_vif *vif, | |
929 | struct ieee80211_bss_conf *bss_conf, | |
930 | u32 changes) | |
931 | { | |
932 | /* Need to send a new beacon template to the FW */ | |
933 | if (changes & BSS_CHANGED_BEACON) { | |
934 | if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
935 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
936 | } | |
937 | } | |
938 | ||
939 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
940 | struct ieee80211_vif *vif, | |
941 | struct ieee80211_bss_conf *bss_conf, | |
942 | u32 changes) | |
943 | { | |
944 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
945 | ||
946 | mutex_lock(&mvm->mutex); | |
947 | ||
948 | switch (vif->type) { | |
949 | case NL80211_IFTYPE_STATION: | |
950 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
951 | break; | |
952 | case NL80211_IFTYPE_AP: | |
953 | iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes); | |
954 | break; | |
955 | default: | |
956 | /* shouldn't happen */ | |
957 | WARN_ON_ONCE(1); | |
958 | } | |
959 | ||
960 | mutex_unlock(&mvm->mutex); | |
961 | } | |
962 | ||
963 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
964 | struct ieee80211_vif *vif, | |
965 | struct cfg80211_scan_request *req) | |
966 | { | |
967 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
968 | int ret; | |
969 | ||
970 | if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS) | |
971 | return -EINVAL; | |
972 | ||
973 | mutex_lock(&mvm->mutex); | |
974 | ||
975 | if (mvm->scan_status == IWL_MVM_SCAN_NONE) | |
976 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
977 | else | |
978 | ret = -EBUSY; | |
979 | ||
980 | mutex_unlock(&mvm->mutex); | |
981 | ||
982 | return ret; | |
983 | } | |
984 | ||
985 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
986 | struct ieee80211_vif *vif) | |
987 | { | |
988 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
989 | ||
990 | mutex_lock(&mvm->mutex); | |
991 | ||
992 | iwl_mvm_cancel_scan(mvm); | |
993 | ||
994 | mutex_unlock(&mvm->mutex); | |
995 | } | |
996 | ||
997 | static void | |
998 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
999 | struct ieee80211_sta *sta, u16 tid, | |
1000 | int num_frames, | |
1001 | enum ieee80211_frame_release_type reason, | |
1002 | bool more_data) | |
1003 | { | |
1004 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
1005 | |
1006 | /* TODO: how do we tell the fw to send frames for a specific TID */ | |
1007 | ||
1008 | /* | |
1009 | * The fw will send EOSP notification when the last frame will be | |
1010 | * transmitted. | |
1011 | */ | |
9cc40712 | 1012 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames); |
8ca151b5 JB |
1013 | } |
1014 | ||
1015 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1016 | struct ieee80211_vif *vif, | |
1017 | enum sta_notify_cmd cmd, | |
1018 | struct ieee80211_sta *sta) | |
1019 | { | |
1020 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1021 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
1022 | ||
1023 | switch (cmd) { | |
1024 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1025 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 JB |
1026 | ieee80211_sta_block_awake(hw, sta, true); |
1027 | /* | |
1028 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1029 | * queues to this station will not be transmitted. The fw will | |
1030 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1031 | */ | |
1032 | break; | |
1033 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1034 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1035 | break; |
9cc40712 | 1036 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1037 | break; |
1038 | default: | |
1039 | break; | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, | |
1044 | struct ieee80211_vif *vif, | |
1045 | struct ieee80211_sta *sta, | |
1046 | enum ieee80211_sta_state old_state, | |
1047 | enum ieee80211_sta_state new_state) | |
1048 | { | |
1049 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1050 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1051 | int ret; | |
1052 | ||
1053 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1054 | sta->addr, old_state, new_state); | |
1055 | ||
1056 | /* this would be a mac80211 bug ... but don't crash */ | |
1057 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1058 | return -EINVAL; | |
1059 | ||
1060 | /* if a STA is being removed, reuse its ID */ | |
1061 | flush_work(&mvm->sta_drained_wk); | |
1062 | ||
1063 | mutex_lock(&mvm->mutex); | |
1064 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1065 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
1066 | /* |
1067 | * Firmware bug - it'll crash if the beacon interval is less | |
1068 | * than 16. We can't avoid connecting at all, so refuse the | |
1069 | * station state change, this will cause mac80211 to abandon | |
1070 | * attempts to connect to this AP, and eventually wpa_s will | |
1071 | * blacklist the AP... | |
1072 | */ | |
1073 | if (vif->type == NL80211_IFTYPE_STATION && | |
1074 | vif->bss_conf.beacon_int < 16) { | |
1075 | IWL_ERR(mvm, | |
1076 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
1077 | sta->addr, vif->bss_conf.beacon_int); | |
1078 | ret = -EINVAL; | |
1079 | goto out_unlock; | |
1080 | } | |
8ca151b5 JB |
1081 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1082 | } else if (old_state == IEEE80211_STA_NONE && | |
1083 | new_state == IEEE80211_STA_AUTH) { | |
1084 | ret = 0; | |
1085 | } else if (old_state == IEEE80211_STA_AUTH && | |
1086 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1087 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1088 | if (ret == 0) | |
1089 | iwl_mvm_rs_rate_init(mvm, sta, | |
1090 | mvmvif->phy_ctxt->channel->band); | |
8ca151b5 JB |
1091 | } else if (old_state == IEEE80211_STA_ASSOC && |
1092 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e HG |
1093 | /* enable beacon filtering */ |
1094 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1095 | ret = 0; |
1096 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1097 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e HG |
1098 | /* disable beacon filtering */ |
1099 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1100 | ret = 0; |
1101 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1102 | new_state == IEEE80211_STA_AUTH) { | |
1103 | ret = 0; | |
1104 | } else if (old_state == IEEE80211_STA_AUTH && | |
1105 | new_state == IEEE80211_STA_NONE) { | |
1106 | ret = 0; | |
1107 | } else if (old_state == IEEE80211_STA_NONE && | |
1108 | new_state == IEEE80211_STA_NOTEXIST) { | |
1109 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1110 | } else { | |
1111 | ret = -EIO; | |
1112 | } | |
48bc1307 | 1113 | out_unlock: |
8ca151b5 JB |
1114 | mutex_unlock(&mvm->mutex); |
1115 | ||
1116 | return ret; | |
1117 | } | |
1118 | ||
1119 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1120 | { | |
1121 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1122 | ||
1123 | mvm->rts_threshold = value; | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, | |
1129 | struct ieee80211_vif *vif, u16 ac, | |
1130 | const struct ieee80211_tx_queue_params *params) | |
1131 | { | |
1132 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1133 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1134 | ||
1135 | mvmvif->queue_params[ac] = *params; | |
1136 | ||
1137 | /* | |
1138 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1139 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1140 | */ | |
1141 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1142 | int ret; | |
1143 | ||
1144 | mutex_lock(&mvm->mutex); | |
1145 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
1146 | mutex_unlock(&mvm->mutex); | |
1147 | return ret; | |
1148 | } | |
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1153 | struct ieee80211_vif *vif) | |
1154 | { | |
1155 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1156 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1157 | 200 + vif->bss_conf.beacon_int); | |
1158 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1159 | 100 + vif->bss_conf.beacon_int); | |
1160 | ||
1161 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1162 | return; | |
1163 | ||
1164 | mutex_lock(&mvm->mutex); | |
1165 | /* Try really hard to protect the session and hear a beacon */ | |
1166 | iwl_mvm_protect_session(mvm, vif, duration, min_duration); | |
1167 | mutex_unlock(&mvm->mutex); | |
1168 | } | |
1169 | ||
1170 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, | |
1171 | enum set_key_cmd cmd, | |
1172 | struct ieee80211_vif *vif, | |
1173 | struct ieee80211_sta *sta, | |
1174 | struct ieee80211_key_conf *key) | |
1175 | { | |
1176 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1177 | int ret; | |
1178 | ||
1179 | if (iwlwifi_mod_params.sw_crypto) { | |
1180 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1181 | return -EOPNOTSUPP; | |
1182 | } | |
1183 | ||
1184 | switch (key->cipher) { | |
1185 | case WLAN_CIPHER_SUITE_TKIP: | |
1186 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1187 | /* fall-through */ | |
1188 | case WLAN_CIPHER_SUITE_CCMP: | |
1189 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1190 | break; | |
1191 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1192 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1193 | break; | |
1194 | case WLAN_CIPHER_SUITE_WEP40: | |
1195 | case WLAN_CIPHER_SUITE_WEP104: | |
1196 | /* | |
1197 | * Support for TX only, at least for now, so accept | |
1198 | * the key and do nothing else. Then mac80211 will | |
1199 | * pass it for TX but we don't have to use it for RX. | |
1200 | */ | |
1201 | return 0; | |
1202 | default: | |
1203 | return -EOPNOTSUPP; | |
1204 | } | |
1205 | ||
1206 | mutex_lock(&mvm->mutex); | |
1207 | ||
1208 | switch (cmd) { | |
1209 | case SET_KEY: | |
6caffd4f JB |
1210 | if (vif->type == NL80211_IFTYPE_AP && !sta) { |
1211 | /* GTK on AP interface is a TX-only key, return 0 */ | |
1212 | ret = 0; | |
1213 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1214 | break; | |
1215 | } | |
1216 | ||
8ca151b5 JB |
1217 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1218 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1219 | if (ret) { | |
1220 | IWL_WARN(mvm, "set key failed\n"); | |
1221 | /* | |
1222 | * can't add key for RX, but we don't need it | |
1223 | * in the device for TX so still return 0 | |
1224 | */ | |
6caffd4f | 1225 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1226 | ret = 0; |
1227 | } | |
1228 | ||
1229 | break; | |
1230 | case DISABLE_KEY: | |
6caffd4f JB |
1231 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1232 | ret = 0; | |
1233 | break; | |
1234 | } | |
1235 | ||
8ca151b5 JB |
1236 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
1237 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
1238 | break; | |
1239 | default: | |
1240 | ret = -EINVAL; | |
1241 | } | |
1242 | ||
1243 | mutex_unlock(&mvm->mutex); | |
1244 | return ret; | |
1245 | } | |
1246 | ||
1247 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
1248 | struct ieee80211_vif *vif, | |
1249 | struct ieee80211_key_conf *keyconf, | |
1250 | struct ieee80211_sta *sta, | |
1251 | u32 iv32, u16 *phase1key) | |
1252 | { | |
1253 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1254 | ||
1255 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); | |
1256 | } | |
1257 | ||
1258 | ||
1259 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
1260 | struct ieee80211_vif *vif, | |
1261 | struct ieee80211_channel *channel, | |
d339d5ca IP |
1262 | int duration, |
1263 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
1264 | { |
1265 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 1266 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 1267 | struct cfg80211_chan_def chandef; |
31d385ae IP |
1268 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
1269 | int ret, i; | |
1270 | ||
1271 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
1272 | duration, type); | |
8ca151b5 JB |
1273 | |
1274 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
1275 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
1276 | return -EINVAL; | |
1277 | } | |
1278 | ||
8ca151b5 JB |
1279 | mutex_lock(&mvm->mutex); |
1280 | ||
31d385ae IP |
1281 | for (i = 0; i < NUM_PHY_CTX; i++) { |
1282 | phy_ctxt = &mvm->phy_ctxts[i]; | |
1283 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
1284 | continue; | |
1285 | ||
1286 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
1287 | /* | |
1288 | * Unbind the P2P_DEVICE from the current PHY context, | |
1289 | * and if the PHY context is not used remove it. | |
1290 | */ | |
1291 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1292 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1293 | goto out_unlock; | |
1294 | ||
1295 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1296 | ||
1297 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
1298 | mvmvif->phy_ctxt = phy_ctxt; | |
1299 | ||
1300 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1301 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1302 | goto out_unlock; | |
1303 | ||
1304 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1305 | goto schedule_time_event; | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | /* Need to update the PHY context only if the ROC channel changed */ | |
1310 | if (channel == mvmvif->phy_ctxt->channel) | |
1311 | goto schedule_time_event; | |
1312 | ||
8ca151b5 | 1313 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 1314 | |
31d385ae IP |
1315 | /* |
1316 | * Change the PHY context configuration as it is currently referenced | |
1317 | * only by the P2P Device MAC | |
1318 | */ | |
1319 | if (mvmvif->phy_ctxt->ref == 1) { | |
1320 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
1321 | &chandef, 1, 1); | |
1322 | if (ret) | |
1323 | goto out_unlock; | |
1324 | } else { | |
1325 | /* | |
1326 | * The PHY context is shared with other MACs. Need to remove the | |
1327 | * P2P Device from the binding, allocate an new PHY context and | |
1328 | * create a new binding | |
1329 | */ | |
1330 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
1331 | if (!phy_ctxt) { | |
1332 | ret = -ENOSPC; | |
1333 | goto out_unlock; | |
1334 | } | |
1335 | ||
1336 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
1337 | 1, 1); | |
1338 | if (ret) { | |
1339 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
1340 | goto out_unlock; | |
1341 | } | |
1342 | ||
1343 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
1344 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1345 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1346 | goto out_unlock; | |
1347 | ||
1348 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1349 | ||
1350 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
1351 | mvmvif->phy_ctxt = phy_ctxt; | |
1352 | ||
1353 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1354 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1355 | goto out_unlock; | |
1356 | ||
1357 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1358 | } | |
1359 | ||
1360 | schedule_time_event: | |
8ca151b5 | 1361 | /* Schedule the time events */ |
e635c797 | 1362 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 1363 | |
31d385ae | 1364 | out_unlock: |
8ca151b5 JB |
1365 | mutex_unlock(&mvm->mutex); |
1366 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
1367 | return ret; |
1368 | } | |
1369 | ||
1370 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
1371 | { | |
1372 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1373 | ||
1374 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
1375 | ||
1376 | mutex_lock(&mvm->mutex); | |
1377 | iwl_mvm_stop_p2p_roc(mvm); | |
1378 | mutex_unlock(&mvm->mutex); | |
1379 | ||
1380 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
1381 | return 0; | |
1382 | } | |
1383 | ||
1384 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
1385 | struct ieee80211_chanctx_conf *ctx) | |
1386 | { | |
1387 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1388 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1389 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
1390 | int ret; |
1391 | ||
53a9d61e | 1392 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 1393 | |
8ca151b5 | 1394 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
1395 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1396 | if (!phy_ctxt) { | |
1397 | ret = -ENOSPC; | |
1398 | goto out; | |
1399 | } | |
8ca151b5 | 1400 | |
53a9d61e IP |
1401 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, |
1402 | ctx->rx_chains_static, | |
1403 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
1404 | if (ret) { |
1405 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
1406 | goto out; | |
1407 | } | |
1408 | ||
53a9d61e | 1409 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
1410 | *phy_ctxt_id = phy_ctxt->id; |
1411 | out: | |
8ca151b5 JB |
1412 | mutex_unlock(&mvm->mutex); |
1413 | return ret; | |
1414 | } | |
1415 | ||
1416 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
1417 | struct ieee80211_chanctx_conf *ctx) | |
1418 | { | |
1419 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1420 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1421 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1422 | |
1423 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 1424 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
1425 | mutex_unlock(&mvm->mutex); |
1426 | } | |
1427 | ||
1428 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
1429 | struct ieee80211_chanctx_conf *ctx, | |
1430 | u32 changed) | |
1431 | { | |
1432 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1433 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1434 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 1435 | |
31d385ae IP |
1436 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
1437 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
1438 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
1439 | IEEE80211_CHANCTX_CHANGE_RADAR)), | |
1440 | "Cannot change PHY. Ref=%d, changed=0x%X\n", | |
1441 | phy_ctxt->ref, changed)) | |
1442 | return; | |
1443 | ||
8ca151b5 JB |
1444 | mutex_lock(&mvm->mutex); |
1445 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, | |
1446 | ctx->rx_chains_static, | |
1447 | ctx->rx_chains_dynamic); | |
1448 | mutex_unlock(&mvm->mutex); | |
1449 | } | |
1450 | ||
1451 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
1452 | struct ieee80211_vif *vif, | |
1453 | struct ieee80211_chanctx_conf *ctx) | |
1454 | { | |
1455 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1456 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1457 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1458 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1459 | int ret; | |
1460 | ||
1461 | mutex_lock(&mvm->mutex); | |
1462 | ||
fe0f2de3 | 1463 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
1464 | |
1465 | switch (vif->type) { | |
1466 | case NL80211_IFTYPE_AP: | |
1467 | /* | |
1468 | * The AP binding flow is handled as part of the start_ap flow | |
1469 | * (in bss_info_changed). | |
1470 | */ | |
1471 | ret = 0; | |
1472 | goto out_unlock; | |
1473 | case NL80211_IFTYPE_STATION: | |
1474 | case NL80211_IFTYPE_ADHOC: | |
1475 | case NL80211_IFTYPE_MONITOR: | |
1476 | break; | |
1477 | default: | |
1478 | ret = -EINVAL; | |
1479 | goto out_unlock; | |
1480 | } | |
1481 | ||
1482 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1483 | if (ret) | |
1484 | goto out_unlock; | |
1485 | ||
1486 | /* | |
1487 | * Setting the quota at this stage is only required for monitor | |
1488 | * interfaces. For the other types, the bss_info changed flow | |
1489 | * will handle quota settings. | |
1490 | */ | |
1491 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 1492 | mvmvif->monitor_active = true; |
8ca151b5 JB |
1493 | ret = iwl_mvm_update_quotas(mvm, vif); |
1494 | if (ret) | |
1495 | goto out_remove_binding; | |
1496 | } | |
1497 | ||
1498 | goto out_unlock; | |
1499 | ||
1500 | out_remove_binding: | |
1501 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1502 | out_unlock: | |
1503 | mutex_unlock(&mvm->mutex); | |
1504 | if (ret) | |
1505 | mvmvif->phy_ctxt = NULL; | |
1506 | return ret; | |
1507 | } | |
1508 | ||
1509 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
1510 | struct ieee80211_vif *vif, | |
1511 | struct ieee80211_chanctx_conf *ctx) | |
1512 | { | |
1513 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1514 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1515 | ||
1516 | mutex_lock(&mvm->mutex); | |
1517 | ||
1518 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
1519 | ||
1520 | if (vif->type == NL80211_IFTYPE_AP) | |
1521 | goto out_unlock; | |
1522 | ||
8ca151b5 JB |
1523 | switch (vif->type) { |
1524 | case NL80211_IFTYPE_MONITOR: | |
1e1391ca IP |
1525 | mvmvif->monitor_active = false; |
1526 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 JB |
1527 | break; |
1528 | default: | |
1529 | break; | |
1530 | } | |
1531 | ||
1e1391ca | 1532 | iwl_mvm_binding_remove_vif(mvm, vif); |
8ca151b5 JB |
1533 | out_unlock: |
1534 | mvmvif->phy_ctxt = NULL; | |
1535 | mutex_unlock(&mvm->mutex); | |
1536 | } | |
1537 | ||
1538 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
1539 | struct ieee80211_sta *sta, | |
1540 | bool set) | |
1541 | { | |
1542 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1543 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1544 | ||
1545 | if (!mvm_sta || !mvm_sta->vif) { | |
1546 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
1547 | return -EINVAL; | |
1548 | } | |
1549 | ||
1550 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
1551 | } | |
1552 | ||
2b76ef13 EG |
1553 | static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw, |
1554 | struct ieee80211_vif *vif, | |
1555 | enum ieee80211_rssi_event rssi_event) | |
1556 | { | |
1557 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1558 | ||
1559 | iwl_mvm_bt_rssi_event(mvm, vif, rssi_event); | |
1560 | } | |
1561 | ||
8ca151b5 JB |
1562 | struct ieee80211_ops iwl_mvm_hw_ops = { |
1563 | .tx = iwl_mvm_mac_tx, | |
1564 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
1565 | .start = iwl_mvm_mac_start, | |
1566 | .restart_complete = iwl_mvm_mac_restart_complete, | |
1567 | .stop = iwl_mvm_mac_stop, | |
1568 | .add_interface = iwl_mvm_mac_add_interface, | |
1569 | .remove_interface = iwl_mvm_mac_remove_interface, | |
1570 | .config = iwl_mvm_mac_config, | |
1571 | .configure_filter = iwl_mvm_configure_filter, | |
1572 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
1573 | .hw_scan = iwl_mvm_mac_hw_scan, | |
1574 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1575 | .sta_state = iwl_mvm_mac_sta_state, | |
1576 | .sta_notify = iwl_mvm_mac_sta_notify, | |
1577 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
1578 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, | |
1579 | .conf_tx = iwl_mvm_mac_conf_tx, | |
1580 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
1581 | .set_key = iwl_mvm_mac_set_key, | |
1582 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
1583 | .remain_on_channel = iwl_mvm_roc, | |
1584 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
2b76ef13 | 1585 | .rssi_callback = iwl_mvm_mac_rssi_callback, |
8ca151b5 JB |
1586 | |
1587 | .add_chanctx = iwl_mvm_add_chanctx, | |
1588 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
1589 | .change_chanctx = iwl_mvm_change_chanctx, | |
1590 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
1591 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
1592 | ||
1593 | .start_ap = iwl_mvm_start_ap, | |
1594 | .stop_ap = iwl_mvm_stop_ap, | |
1595 | ||
1596 | .set_tim = iwl_mvm_set_tim, | |
1597 | ||
1598 | #ifdef CONFIG_PM_SLEEP | |
1599 | /* look at d3.c */ | |
1600 | .suspend = iwl_mvm_suspend, | |
1601 | .resume = iwl_mvm_resume, | |
1602 | .set_wakeup = iwl_mvm_set_wakeup, | |
1603 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
1604 | #if IS_ENABLED(CONFIG_IPV6) | |
1605 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
1606 | #endif | |
1607 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
1608 | #endif | |
1609 | }; |