]>
Commit | Line | Data |
---|---|---|
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" | |
507cadf2 | 80 | #include "testmode.h" |
8ca151b5 JB |
81 | |
82 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
83 | { | |
84 | .max = 1, | |
8eb38710 | 85 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 86 | }, |
3c15a0fb JB |
87 | { |
88 | .max = 1, | |
8eb38710 IP |
89 | .types = BIT(NL80211_IFTYPE_AP) | |
90 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
91 | BIT(NL80211_IFTYPE_P2P_GO), |
92 | }, | |
93 | { | |
94 | .max = 1, | |
95 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
96 | }, | |
8ca151b5 JB |
97 | }; |
98 | ||
99 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
100 | { | |
101 | .num_different_channels = 1, | |
102 | .max_interfaces = 3, | |
103 | .limits = iwl_mvm_limits, | |
104 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
105 | }, | |
106 | }; | |
107 | ||
f0c2646a JB |
108 | #ifdef CONFIG_PM_SLEEP |
109 | static const struct nl80211_wowlan_tcp_data_token_feature | |
110 | iwl_mvm_wowlan_tcp_token_feature = { | |
111 | .min_len = 0, | |
112 | .max_len = 255, | |
113 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
114 | }; | |
115 | ||
116 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
117 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
118 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
119 | sizeof(struct ethhdr) - | |
120 | sizeof(struct iphdr) - | |
121 | sizeof(struct tcphdr), | |
122 | .data_interval_max = 65535, /* __le16 in API */ | |
123 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
124 | sizeof(struct ethhdr) - | |
125 | sizeof(struct iphdr) - | |
126 | sizeof(struct tcphdr), | |
127 | .seq = true, | |
128 | }; | |
129 | #endif | |
130 | ||
fe0f2de3 IP |
131 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
132 | { | |
133 | int i; | |
134 | ||
135 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
136 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
137 | mvm->phy_ctxts[i].id = i; | |
138 | mvm->phy_ctxts[i].ref = 0; | |
139 | } | |
140 | } | |
141 | ||
20f1a5de DS |
142 | static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) |
143 | { | |
144 | /* we create the 802.11 header and SSID element */ | |
145 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID) | |
146 | return mvm->fw->ucode_capa.max_probe_length - 24 - 2; | |
147 | return mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
148 | } | |
149 | ||
8ca151b5 JB |
150 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
151 | { | |
152 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 153 | int num_mac, ret, i; |
8ca151b5 JB |
154 | |
155 | /* Tell mac80211 our characteristics */ | |
156 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
157 | IEEE80211_HW_SPECTRUM_MGMT | | |
158 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
159 | IEEE80211_HW_QUEUE_CONTROL | | |
160 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
161 | IEEE80211_HW_SUPPORTS_PS | |
162 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 163 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 164 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be EG |
165 | IEEE80211_HW_CONNECTION_MONITOR | |
166 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
e8e626ad | 167 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
8ca151b5 | 168 | |
19e737c9 | 169 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 170 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
8ca151b5 JB |
171 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
172 | ||
173 | /* | |
174 | * Enable 11w if advertised by firmware and software crypto | |
175 | * is not enabled (as the firmware will interpret some mgmt | |
176 | * packets, so enabling it with software crypto isn't safe) | |
177 | */ | |
178 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
179 | !iwlwifi_mod_params.sw_crypto) | |
180 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
181 | ||
e8e626ad AB |
182 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) { |
183 | hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; | |
184 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; | |
185 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
186 | } | |
187 | ||
8ca151b5 JB |
188 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
189 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 190 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
191 | |
192 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
193 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
194 | BIT(NL80211_IFTYPE_AP) | | |
195 | BIT(NL80211_IFTYPE_P2P_GO) | | |
196 | BIT(NL80211_IFTYPE_P2P_DEVICE); | |
8ca151b5 | 197 | |
5023d966 JB |
198 | /* IBSS has bugs in older versions */ |
199 | if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8) | |
200 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); | |
201 | ||
a2f73b6c LR |
202 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
203 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
204 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 JB |
205 | |
206 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; | |
207 | hw->wiphy->n_iface_combinations = | |
208 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
209 | ||
c451e6d4 | 210 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
211 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
212 | ||
213 | /* Extract MAC address */ | |
214 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
215 | hw->wiphy->addresses = mvm->addresses; | |
216 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
217 | |
218 | /* Extract additional MAC addresses if available */ | |
219 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
220 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
221 | ||
222 | for (i = 1; i < num_mac; i++) { | |
223 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 224 | ETH_ALEN); |
831e85f3 | 225 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
226 | hw->wiphy->n_addresses++; |
227 | } | |
228 | ||
fe0f2de3 IP |
229 | iwl_mvm_reset_phy_ctxts(mvm); |
230 | ||
20f1a5de DS |
231 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
232 | ||
8ca151b5 JB |
233 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
234 | ||
235 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
236 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
237 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
238 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
239 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
240 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
241 | ||
242 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
243 | ||
ade50652 | 244 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
245 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
246 | else | |
247 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
248 | ||
35a000b7 DS |
249 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) { |
250 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
251 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
252 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
253 | /* we create the 802.11 header and zero length SSID IE. */ | |
254 | hw->wiphy->max_sched_scan_ie_len = | |
255 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
256 | } | |
257 | ||
8ca151b5 JB |
258 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
259 | NL80211_FEATURE_P2P_GO_OPPPS; | |
260 | ||
261 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
262 | ||
263 | #ifdef CONFIG_PM_SLEEP | |
264 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
265 | mvm->trans->ops->d3_suspend && | |
266 | mvm->trans->ops->d3_resume && | |
267 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
268 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
269 | WIPHY_WOWLAN_DISCONNECT | | |
270 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
271 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 272 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
273 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
274 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
275 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
276 | ||
277 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
278 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
279 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
280 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
281 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
282 | } |
283 | #endif | |
284 | ||
285 | ret = iwl_mvm_leds_init(mvm); | |
286 | if (ret) | |
287 | return ret; | |
288 | ||
b7327d89 EG |
289 | ret = ieee80211_register_hw(mvm->hw); |
290 | if (ret) | |
291 | iwl_mvm_leds_exit(mvm); | |
292 | ||
293 | return ret; | |
8ca151b5 JB |
294 | } |
295 | ||
296 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, | |
297 | struct ieee80211_tx_control *control, | |
298 | struct sk_buff *skb) | |
299 | { | |
300 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
301 | ||
9ee718aa EL |
302 | if (iwl_mvm_is_radio_killed(mvm)) { |
303 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
304 | goto drop; |
305 | } | |
306 | ||
398e8c6c | 307 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
308 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
309 | goto drop; | |
310 | ||
311 | if (control->sta) { | |
312 | if (iwl_mvm_tx_skb(mvm, skb, control->sta)) | |
313 | goto drop; | |
314 | return; | |
315 | } | |
316 | ||
317 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
318 | goto drop; | |
319 | return; | |
320 | drop: | |
321 | ieee80211_free_txskb(hw, skb); | |
322 | } | |
323 | ||
324 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, | |
325 | struct ieee80211_vif *vif, | |
326 | enum ieee80211_ampdu_mlme_action action, | |
327 | struct ieee80211_sta *sta, u16 tid, | |
328 | u16 *ssn, u8 buf_size) | |
329 | { | |
330 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
331 | int ret; | |
332 | ||
333 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
334 | sta->addr, tid, action); | |
335 | ||
336 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
337 | return -EACCES; | |
338 | ||
339 | mutex_lock(&mvm->mutex); | |
340 | ||
341 | switch (action) { | |
342 | case IEEE80211_AMPDU_RX_START: | |
343 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { | |
344 | ret = -EINVAL; | |
345 | break; | |
346 | } | |
347 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
348 | break; | |
349 | case IEEE80211_AMPDU_RX_STOP: | |
350 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
351 | break; | |
352 | case IEEE80211_AMPDU_TX_START: | |
5d158efa EG |
353 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { |
354 | ret = -EINVAL; | |
355 | break; | |
356 | } | |
8ca151b5 JB |
357 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
358 | break; | |
359 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
360 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
361 | break; | |
8ca151b5 JB |
362 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
363 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 364 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
365 | break; |
366 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
367 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
368 | break; | |
369 | default: | |
370 | WARN_ON_ONCE(1); | |
371 | ret = -EINVAL; | |
372 | break; | |
373 | } | |
374 | mutex_unlock(&mvm->mutex); | |
375 | ||
376 | return ret; | |
377 | } | |
378 | ||
379 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
380 | struct ieee80211_vif *vif) | |
381 | { | |
382 | struct iwl_mvm *mvm = data; | |
383 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
384 | ||
385 | mvmvif->uploaded = false; | |
386 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
387 | ||
388 | /* does this make sense at all? */ | |
389 | mvmvif->color++; | |
390 | ||
391 | spin_lock_bh(&mvm->time_event_lock); | |
392 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
393 | spin_unlock_bh(&mvm->time_event_lock); | |
394 | ||
fe0f2de3 | 395 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
396 | } |
397 | ||
398 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
399 | { | |
400 | iwl_trans_stop_device(mvm->trans); | |
401 | iwl_trans_stop_hw(mvm->trans, false); | |
402 | ||
403 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
404 | ||
405 | /* just in case one was running */ | |
406 | ieee80211_remain_on_channel_expired(mvm->hw); | |
407 | ||
408 | ieee80211_iterate_active_interfaces_atomic( | |
409 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
410 | iwl_mvm_cleanup_iterator, mvm); | |
411 | ||
fe0f2de3 IP |
412 | mvm->p2p_device_vif = NULL; |
413 | ||
414 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
415 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
416 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
417 | ||
418 | ieee80211_wake_queues(mvm->hw); | |
419 | ||
420 | mvm->vif_count = 0; | |
113a0447 | 421 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
422 | } |
423 | ||
424 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
425 | { | |
426 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
427 | int ret; | |
428 | ||
429 | mutex_lock(&mvm->mutex); | |
430 | ||
431 | /* Clean up some internal and mac80211 state on restart */ | |
432 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
433 | iwl_mvm_restart_cleanup(mvm); | |
434 | ||
435 | ret = iwl_mvm_up(mvm); | |
436 | mutex_unlock(&mvm->mutex); | |
437 | ||
438 | return ret; | |
439 | } | |
440 | ||
441 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
442 | { | |
443 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
444 | int ret; | |
445 | ||
446 | mutex_lock(&mvm->mutex); | |
447 | ||
448 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
449 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
450 | if (ret) | |
451 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
452 | ret); | |
453 | ||
454 | mutex_unlock(&mvm->mutex); | |
455 | } | |
456 | ||
457 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
458 | { | |
459 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
460 | ||
461 | flush_work(&mvm->async_handlers_wk); | |
462 | ||
463 | mutex_lock(&mvm->mutex); | |
464 | /* async_handlers_wk is now blocked */ | |
465 | ||
466 | /* | |
467 | * The work item could be running or queued if the | |
468 | * ROC time event stops just as we get here. | |
469 | */ | |
470 | cancel_work_sync(&mvm->roc_done_wk); | |
471 | ||
472 | iwl_trans_stop_device(mvm->trans); | |
473 | iwl_trans_stop_hw(mvm->trans, false); | |
474 | ||
475 | iwl_mvm_async_handlers_purge(mvm); | |
476 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
477 | ||
478 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
479 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
480 | ||
481 | mutex_unlock(&mvm->mutex); | |
482 | ||
483 | /* | |
484 | * The worker might have been waiting for the mutex, let it run and | |
485 | * discover that its list is now empty. | |
486 | */ | |
487 | cancel_work_sync(&mvm->async_handlers_wk); | |
488 | } | |
489 | ||
490 | static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac, | |
491 | struct ieee80211_vif *vif) | |
492 | { | |
493 | struct iwl_mvm *mvm = data; | |
494 | int ret; | |
495 | ||
496 | ret = iwl_mvm_power_disable(mvm, vif); | |
497 | if (ret) | |
498 | IWL_ERR(mvm, "failed to disable power management\n"); | |
499 | } | |
500 | ||
501 | static void iwl_mvm_power_update_iterator(void *data, u8 *mac, | |
502 | struct ieee80211_vif *vif) | |
503 | { | |
504 | struct iwl_mvm *mvm = data; | |
505 | ||
506 | iwl_mvm_power_update_mode(mvm, vif); | |
507 | } | |
508 | ||
fe0f2de3 IP |
509 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
510 | { | |
511 | u16 i; | |
512 | ||
513 | lockdep_assert_held(&mvm->mutex); | |
514 | ||
515 | for (i = 0; i < NUM_PHY_CTX; i++) | |
516 | if (!mvm->phy_ctxts[i].ref) | |
517 | return &mvm->phy_ctxts[i]; | |
518 | ||
519 | IWL_ERR(mvm, "No available PHY context\n"); | |
520 | return NULL; | |
521 | } | |
522 | ||
8ca151b5 JB |
523 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
524 | struct ieee80211_vif *vif) | |
525 | { | |
526 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
527 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
528 | int ret; | |
529 | ||
530 | /* | |
531 | * Not much to do here. The stack will not allow interface | |
532 | * types or combinations that we didn't advertise, so we | |
533 | * don't really have to check the types. | |
534 | */ | |
535 | ||
536 | mutex_lock(&mvm->mutex); | |
537 | ||
e89044d7 | 538 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
539 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
540 | if (ret) | |
541 | goto out_unlock; | |
542 | ||
ea183d02 IP |
543 | /* |
544 | * TODO: remove this temporary code. | |
545 | * Currently MVM FW supports power management only on single MAC. | |
546 | * If new interface added, disable PM on existing interface. | |
547 | * P2P device is a special case, since it is handled by FW similary to | |
548 | * scan. If P2P deviced is added, PM remains enabled on existing | |
549 | * interface. | |
550 | * Note: the method below does not count the new interface being added | |
551 | * at this moment. | |
552 | */ | |
553 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) | |
554 | mvm->vif_count++; | |
555 | if (mvm->vif_count > 1) { | |
556 | IWL_DEBUG_MAC80211(mvm, | |
557 | "Disable power on existing interfaces\n"); | |
558 | ieee80211_iterate_active_interfaces_atomic( | |
559 | mvm->hw, | |
560 | IEEE80211_IFACE_ITER_NORMAL, | |
561 | iwl_mvm_pm_disable_iterator, mvm); | |
562 | } | |
563 | ||
8ca151b5 JB |
564 | /* |
565 | * The AP binding flow can be done only after the beacon | |
566 | * template is configured (which happens only in the mac80211 | |
567 | * start_ap() flow), and adding the broadcast station can happen | |
568 | * only after the binding. | |
569 | * In addition, since modifying the MAC before adding a bcast | |
570 | * station is not allowed by the FW, delay the adding of MAC context to | |
571 | * the point where we can also add the bcast station. | |
572 | * In short: there's not much we can do at this point, other than | |
573 | * allocating resources :) | |
574 | */ | |
5023d966 JB |
575 | if (vif->type == NL80211_IFTYPE_AP || |
576 | vif->type == NL80211_IFTYPE_ADHOC) { | |
8ca151b5 JB |
577 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); |
578 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
579 | qmask); | |
580 | if (ret) { | |
581 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
582 | goto out_release; | |
583 | } | |
584 | ||
77740cb4 | 585 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
586 | goto out_unlock; |
587 | } | |
588 | ||
8ca151b5 JB |
589 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
590 | if (ret) | |
591 | goto out_release; | |
592 | ||
593 | /* | |
594 | * Update power state on the new interface. Admittedly, based on | |
595 | * mac80211 logics this power update will disable power management | |
596 | */ | |
597 | iwl_mvm_power_update_mode(mvm, vif); | |
598 | ||
7df15b1e | 599 | /* beacon filtering */ |
bd3351ba EP |
600 | ret = iwl_mvm_disable_beacon_filter(mvm, vif); |
601 | if (ret) | |
602 | goto out_remove_mac; | |
603 | ||
7df15b1e | 604 | if (!mvm->bf_allowed_vif && |
5dca7c24 HG |
605 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p && |
606 | mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){ | |
7df15b1e | 607 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
608 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
609 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
610 | } |
611 | ||
8ca151b5 JB |
612 | /* |
613 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
614 | * so a dedicated PHY context is allocated to it and the corresponding | |
615 | * MAC context is bound to it at this stage. | |
616 | */ | |
617 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 618 | |
fe0f2de3 IP |
619 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
620 | if (!mvmvif->phy_ctxt) { | |
621 | ret = -ENOSPC; | |
bd3351ba | 622 | goto out_free_bf; |
fe0f2de3 | 623 | } |
8ca151b5 | 624 | |
53a9d61e | 625 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
626 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
627 | if (ret) | |
53a9d61e | 628 | goto out_unref_phy; |
8ca151b5 JB |
629 | |
630 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
631 | if (ret) | |
632 | goto out_unbind; | |
633 | ||
634 | /* Save a pointer to p2p device vif, so it can later be used to | |
635 | * update the p2p device MAC when a GO is started/stopped */ | |
636 | mvm->p2p_device_vif = vif; | |
637 | } | |
638 | ||
63494374 | 639 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
640 | goto out_unlock; |
641 | ||
642 | out_unbind: | |
643 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 644 | out_unref_phy: |
fe0f2de3 | 645 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
646 | out_free_bf: |
647 | if (mvm->bf_allowed_vif == mvmvif) { | |
648 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
649 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
650 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 651 | } |
8ca151b5 JB |
652 | out_remove_mac: |
653 | mvmvif->phy_ctxt = NULL; | |
654 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
655 | out_release: | |
5ee2b215 AB |
656 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
657 | mvm->vif_count--; | |
4bf881f5 AB |
658 | ieee80211_iterate_active_interfaces( |
659 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
660 | iwl_mvm_power_update_iterator, mvm); | |
8ca151b5 JB |
661 | iwl_mvm_mac_ctxt_release(mvm, vif); |
662 | out_unlock: | |
663 | mutex_unlock(&mvm->mutex); | |
664 | ||
665 | return ret; | |
666 | } | |
667 | ||
38a12b5b JB |
668 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
669 | struct ieee80211_vif *vif) | |
8ca151b5 | 670 | { |
8ca151b5 JB |
671 | u32 tfd_msk = 0, ac; |
672 | ||
673 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
674 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
675 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
676 | ||
677 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
678 | tfd_msk |= BIT(vif->cab_queue); | |
679 | ||
680 | if (tfd_msk) { | |
681 | mutex_lock(&mvm->mutex); | |
682 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
683 | mutex_unlock(&mvm->mutex); | |
684 | } | |
685 | ||
686 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
687 | /* | |
688 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
689 | * We assume here that all the packets sent to the OFFCHANNEL | |
690 | * queue are sent in ROC session. | |
691 | */ | |
692 | flush_work(&mvm->roc_done_wk); | |
693 | } else { | |
694 | /* | |
695 | * By now, all the AC queues are empty. The AGG queues are | |
696 | * empty too. We already got all the Tx responses for all the | |
697 | * packets in the queues. The drain work can have been | |
0742a75a | 698 | * triggered. Flush it. |
8ca151b5 JB |
699 | */ |
700 | flush_work(&mvm->sta_drained_wk); | |
701 | } | |
38a12b5b JB |
702 | } |
703 | ||
704 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
705 | struct ieee80211_vif *vif) | |
706 | { | |
707 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
708 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
709 | ||
710 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
711 | |
712 | mutex_lock(&mvm->mutex); | |
713 | ||
7df15b1e HG |
714 | if (mvm->bf_allowed_vif == mvmvif) { |
715 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
716 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
717 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
718 | } |
719 | ||
63494374 JB |
720 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
721 | ||
8ca151b5 JB |
722 | /* |
723 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 724 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 725 | */ |
5023d966 JB |
726 | if (vif->type == NL80211_IFTYPE_AP || |
727 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
728 | #ifdef CONFIG_NL80211_TESTMODE |
729 | if (vif == mvm->noa_vif) { | |
730 | mvm->noa_vif = NULL; | |
731 | mvm->noa_duration = 0; | |
732 | } | |
733 | #endif | |
8ca151b5 JB |
734 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); |
735 | goto out_release; | |
736 | } | |
737 | ||
738 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
739 | mvm->p2p_device_vif = NULL; | |
740 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
741 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 742 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
743 | mvmvif->phy_ctxt = NULL; |
744 | } | |
745 | ||
746 | /* | |
747 | * TODO: remove this temporary code. | |
748 | * Currently MVM FW supports power management only on single MAC. | |
749 | * Check if only one additional interface remains after removing | |
750 | * current one. Update power mode on the remaining interface. | |
751 | */ | |
5ee2b215 | 752 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 JB |
753 | mvm->vif_count--; |
754 | IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", | |
755 | mvm->vif_count); | |
756 | if (mvm->vif_count == 1) { | |
757 | ieee80211_iterate_active_interfaces( | |
758 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
759 | iwl_mvm_power_update_iterator, mvm); | |
760 | } | |
761 | ||
762 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
763 | ||
764 | out_release: | |
765 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
766 | mutex_unlock(&mvm->mutex); | |
767 | } | |
768 | ||
88f2fd73 MG |
769 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
770 | s8 tx_power) | |
771 | { | |
772 | /* FW is in charge of regulatory enforcement */ | |
773 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
774 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
775 | .pwr_restriction = cpu_to_le16(tx_power), | |
776 | }; | |
777 | ||
778 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC, | |
779 | sizeof(reduce_txpwr_cmd), | |
780 | &reduce_txpwr_cmd); | |
781 | } | |
782 | ||
8ca151b5 JB |
783 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) |
784 | { | |
785 | return 0; | |
786 | } | |
787 | ||
788 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
789 | unsigned int changed_flags, | |
790 | unsigned int *total_flags, | |
791 | u64 multicast) | |
792 | { | |
793 | *total_flags = 0; | |
794 | } | |
795 | ||
51b6b9e0 EG |
796 | static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm, |
797 | struct ieee80211_vif *vif) | |
798 | { | |
799 | struct iwl_mcast_filter_cmd mcast_filter_cmd = { | |
800 | .pass_all = 1, | |
801 | }; | |
802 | ||
803 | memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN); | |
804 | ||
805 | return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, | |
806 | sizeof(mcast_filter_cmd), | |
807 | &mcast_filter_cmd); | |
808 | } | |
809 | ||
8ca151b5 JB |
810 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
811 | struct ieee80211_vif *vif, | |
812 | struct ieee80211_bss_conf *bss_conf, | |
813 | u32 changes) | |
814 | { | |
815 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
816 | int ret; | |
817 | ||
818 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
819 | if (ret) | |
820 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
821 | ||
822 | if (changes & BSS_CHANGED_ASSOC) { | |
823 | if (bss_conf->assoc) { | |
824 | /* add quota for this interface */ | |
825 | ret = iwl_mvm_update_quotas(mvm, vif); | |
826 | if (ret) { | |
827 | IWL_ERR(mvm, "failed to update quotas\n"); | |
828 | return; | |
829 | } | |
51b6b9e0 | 830 | iwl_mvm_configure_mcast_filter(mvm, vif); |
016d27e1 JB |
831 | |
832 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
833 | &mvm->status)) { | |
834 | /* | |
835 | * If we're restarting then the firmware will | |
836 | * obviously have lost synchronisation with | |
837 | * the AP. It will attempt to synchronise by | |
838 | * itself, but we can make it more reliable by | |
839 | * scheduling a session protection time event. | |
840 | * | |
841 | * The firmware needs to receive a beacon to | |
842 | * catch up with synchronisation, use 110% of | |
843 | * the beacon interval. | |
844 | * | |
845 | * Set a large maximum delay to allow for more | |
846 | * than a single interface. | |
847 | */ | |
848 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
849 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
850 | 5 * dur); | |
851 | } | |
8ca151b5 JB |
852 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
853 | /* remove AP station now that the MAC is unassoc */ | |
854 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
855 | if (ret) | |
856 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
857 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
858 | /* remove quota for this interface */ | |
859 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
860 | if (ret) | |
861 | IWL_ERR(mvm, "failed to update quotas\n"); | |
862 | } | |
a20fd398 AO |
863 | |
864 | /* reset rssi values */ | |
865 | mvmvif->bf_data.ave_beacon_signal = 0; | |
866 | ||
e8e626ad AB |
867 | if (!(mvm->fw->ucode_capa.flags & |
868 | IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) { | |
e811ada7 AB |
869 | /* Workaround for FW bug, otherwise FW disables device |
870 | * power save upon disassociation | |
871 | */ | |
872 | ret = iwl_mvm_power_update_mode(mvm, vif); | |
873 | if (ret) | |
874 | IWL_ERR(mvm, "failed to update power mode\n"); | |
875 | } | |
8e484f0b | 876 | iwl_mvm_bt_coex_vif_change(mvm); |
989c6505 | 877 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
878 | /* |
879 | * We received a beacon _after_ association so | |
880 | * remove the session protection. | |
881 | */ | |
882 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
883 | &mvmvif->time_event_data); | |
e3c588ec | 884 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_QOS)) { |
4bf881f5 AB |
885 | ret = iwl_mvm_power_update_mode(mvm, vif); |
886 | if (ret) | |
887 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 888 | } |
88f2fd73 MG |
889 | if (changes & BSS_CHANGED_TXPOWER) { |
890 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
891 | bss_conf->txpower); | |
892 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
893 | } | |
a20fd398 AO |
894 | |
895 | if (changes & BSS_CHANGED_CQM) { | |
896 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed"); | |
897 | /* reset cqm events tracking */ | |
898 | mvmvif->bf_data.last_cqm_event = 0; | |
899 | ret = iwl_mvm_update_beacon_filter(mvm, vif); | |
900 | if (ret) | |
901 | IWL_ERR(mvm, "failed to update CQM thresholds\n"); | |
902 | } | |
8ca151b5 JB |
903 | } |
904 | ||
5023d966 JB |
905 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
906 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
907 | { |
908 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
909 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
910 | int ret; | |
911 | ||
912 | mutex_lock(&mvm->mutex); | |
913 | ||
914 | /* Send the beacon template */ | |
915 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
916 | if (ret) | |
917 | goto out_unlock; | |
918 | ||
919 | /* Add the mac context */ | |
920 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
921 | if (ret) | |
922 | goto out_unlock; | |
923 | ||
924 | /* Perform the binding */ | |
925 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
926 | if (ret) | |
927 | goto out_remove; | |
928 | ||
5023d966 | 929 | mvmvif->ap_ibss_active = true; |
8ca151b5 JB |
930 | |
931 | /* Send the bcast station. At this stage the TBTT and DTIM time events | |
932 | * are added and applied to the scheduler */ | |
933 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
934 | if (ret) | |
935 | goto out_unbind; | |
936 | ||
937 | ret = iwl_mvm_update_quotas(mvm, vif); | |
938 | if (ret) | |
939 | goto out_rm_bcast; | |
940 | ||
5023d966 | 941 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 JB |
942 | if (vif->p2p && mvm->p2p_device_vif) |
943 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
944 | ||
8e484f0b | 945 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 946 | |
8ca151b5 JB |
947 | mutex_unlock(&mvm->mutex); |
948 | return 0; | |
949 | ||
950 | out_rm_bcast: | |
951 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
952 | out_unbind: | |
953 | iwl_mvm_binding_remove_vif(mvm, vif); | |
954 | out_remove: | |
955 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
956 | out_unlock: | |
957 | mutex_unlock(&mvm->mutex); | |
958 | return ret; | |
959 | } | |
960 | ||
5023d966 JB |
961 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
962 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
963 | { |
964 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
965 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
966 | ||
38a12b5b JB |
967 | iwl_mvm_prepare_mac_removal(mvm, vif); |
968 | ||
8ca151b5 JB |
969 | mutex_lock(&mvm->mutex); |
970 | ||
5023d966 | 971 | mvmvif->ap_ibss_active = false; |
8ca151b5 | 972 | |
8e484f0b | 973 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 974 | |
5023d966 | 975 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 JB |
976 | if (vif->p2p && mvm->p2p_device_vif) |
977 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
978 | ||
979 | iwl_mvm_update_quotas(mvm, NULL); | |
980 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
981 | iwl_mvm_binding_remove_vif(mvm, vif); | |
982 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
983 | ||
984 | mutex_unlock(&mvm->mutex); | |
985 | } | |
986 | ||
5023d966 JB |
987 | static void |
988 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
989 | struct ieee80211_vif *vif, | |
990 | struct ieee80211_bss_conf *bss_conf, | |
991 | u32 changes) | |
8ca151b5 JB |
992 | { |
993 | /* Need to send a new beacon template to the FW */ | |
994 | if (changes & BSS_CHANGED_BEACON) { | |
995 | if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
996 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
997 | } | |
998 | } | |
999 | ||
1000 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
1001 | struct ieee80211_vif *vif, | |
1002 | struct ieee80211_bss_conf *bss_conf, | |
1003 | u32 changes) | |
1004 | { | |
1005 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1006 | ||
1007 | mutex_lock(&mvm->mutex); | |
1008 | ||
1009 | switch (vif->type) { | |
1010 | case NL80211_IFTYPE_STATION: | |
1011 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
1012 | break; | |
1013 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
1014 | case NL80211_IFTYPE_ADHOC: |
1015 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
1016 | break; |
1017 | default: | |
1018 | /* shouldn't happen */ | |
1019 | WARN_ON_ONCE(1); | |
1020 | } | |
1021 | ||
1022 | mutex_unlock(&mvm->mutex); | |
1023 | } | |
1024 | ||
1025 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
1026 | struct ieee80211_vif *vif, | |
1027 | struct cfg80211_scan_request *req) | |
1028 | { | |
1029 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1030 | int ret; | |
1031 | ||
1032 | if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS) | |
1033 | return -EINVAL; | |
1034 | ||
1035 | mutex_lock(&mvm->mutex); | |
1036 | ||
1037 | if (mvm->scan_status == IWL_MVM_SCAN_NONE) | |
1038 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
1039 | else | |
1040 | ret = -EBUSY; | |
1041 | ||
1042 | mutex_unlock(&mvm->mutex); | |
1043 | ||
1044 | return ret; | |
1045 | } | |
1046 | ||
1047 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
1048 | struct ieee80211_vif *vif) | |
1049 | { | |
1050 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1051 | ||
1052 | mutex_lock(&mvm->mutex); | |
1053 | ||
1054 | iwl_mvm_cancel_scan(mvm); | |
1055 | ||
1056 | mutex_unlock(&mvm->mutex); | |
1057 | } | |
1058 | ||
1059 | static void | |
1060 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
1061 | struct ieee80211_sta *sta, u16 tid, | |
1062 | int num_frames, | |
1063 | enum ieee80211_frame_release_type reason, | |
1064 | bool more_data) | |
1065 | { | |
1066 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
1067 | |
1068 | /* TODO: how do we tell the fw to send frames for a specific TID */ | |
1069 | ||
1070 | /* | |
1071 | * The fw will send EOSP notification when the last frame will be | |
1072 | * transmitted. | |
1073 | */ | |
9cc40712 | 1074 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames); |
8ca151b5 JB |
1075 | } |
1076 | ||
1077 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1078 | struct ieee80211_vif *vif, | |
1079 | enum sta_notify_cmd cmd, | |
1080 | struct ieee80211_sta *sta) | |
1081 | { | |
1082 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1083 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
1084 | ||
1085 | switch (cmd) { | |
1086 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1087 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 JB |
1088 | ieee80211_sta_block_awake(hw, sta, true); |
1089 | /* | |
1090 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1091 | * queues to this station will not be transmitted. The fw will | |
1092 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1093 | */ | |
1094 | break; | |
1095 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1096 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1097 | break; |
9cc40712 | 1098 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1099 | break; |
1100 | default: | |
1101 | break; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, | |
1106 | struct ieee80211_vif *vif, | |
1107 | struct ieee80211_sta *sta, | |
1108 | enum ieee80211_sta_state old_state, | |
1109 | enum ieee80211_sta_state new_state) | |
1110 | { | |
1111 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1112 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1113 | int ret; | |
1114 | ||
1115 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1116 | sta->addr, old_state, new_state); | |
1117 | ||
1118 | /* this would be a mac80211 bug ... but don't crash */ | |
1119 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1120 | return -EINVAL; | |
1121 | ||
1122 | /* if a STA is being removed, reuse its ID */ | |
1123 | flush_work(&mvm->sta_drained_wk); | |
1124 | ||
1125 | mutex_lock(&mvm->mutex); | |
1126 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1127 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
1128 | /* |
1129 | * Firmware bug - it'll crash if the beacon interval is less | |
1130 | * than 16. We can't avoid connecting at all, so refuse the | |
1131 | * station state change, this will cause mac80211 to abandon | |
1132 | * attempts to connect to this AP, and eventually wpa_s will | |
1133 | * blacklist the AP... | |
1134 | */ | |
1135 | if (vif->type == NL80211_IFTYPE_STATION && | |
1136 | vif->bss_conf.beacon_int < 16) { | |
1137 | IWL_ERR(mvm, | |
1138 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
1139 | sta->addr, vif->bss_conf.beacon_int); | |
1140 | ret = -EINVAL; | |
1141 | goto out_unlock; | |
1142 | } | |
8ca151b5 JB |
1143 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1144 | } else if (old_state == IEEE80211_STA_NONE && | |
1145 | new_state == IEEE80211_STA_AUTH) { | |
1146 | ret = 0; | |
1147 | } else if (old_state == IEEE80211_STA_AUTH && | |
1148 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1149 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1150 | if (ret == 0) | |
1151 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
1152 | mvmvif->phy_ctxt->channel->band, |
1153 | true); | |
8ca151b5 JB |
1154 | } else if (old_state == IEEE80211_STA_ASSOC && |
1155 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e HG |
1156 | /* enable beacon filtering */ |
1157 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1158 | ret = 0; |
1159 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1160 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e HG |
1161 | /* disable beacon filtering */ |
1162 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1163 | ret = 0; |
1164 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1165 | new_state == IEEE80211_STA_AUTH) { | |
1166 | ret = 0; | |
1167 | } else if (old_state == IEEE80211_STA_AUTH && | |
1168 | new_state == IEEE80211_STA_NONE) { | |
1169 | ret = 0; | |
1170 | } else if (old_state == IEEE80211_STA_NONE && | |
1171 | new_state == IEEE80211_STA_NOTEXIST) { | |
1172 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1173 | } else { | |
1174 | ret = -EIO; | |
1175 | } | |
48bc1307 | 1176 | out_unlock: |
8ca151b5 JB |
1177 | mutex_unlock(&mvm->mutex); |
1178 | ||
1179 | return ret; | |
1180 | } | |
1181 | ||
1182 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1183 | { | |
1184 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1185 | ||
1186 | mvm->rts_threshold = value; | |
1187 | ||
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, | |
1192 | struct ieee80211_vif *vif, u16 ac, | |
1193 | const struct ieee80211_tx_queue_params *params) | |
1194 | { | |
1195 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1196 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1197 | ||
1198 | mvmvif->queue_params[ac] = *params; | |
1199 | ||
1200 | /* | |
1201 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1202 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1203 | */ | |
1204 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1205 | int ret; | |
1206 | ||
1207 | mutex_lock(&mvm->mutex); | |
1208 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
1209 | mutex_unlock(&mvm->mutex); | |
1210 | return ret; | |
1211 | } | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1216 | struct ieee80211_vif *vif) | |
1217 | { | |
1218 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1219 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1220 | 200 + vif->bss_conf.beacon_int); | |
1221 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1222 | 100 + vif->bss_conf.beacon_int); | |
1223 | ||
1224 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1225 | return; | |
1226 | ||
1227 | mutex_lock(&mvm->mutex); | |
1228 | /* Try really hard to protect the session and hear a beacon */ | |
016d27e1 | 1229 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); |
8ca151b5 JB |
1230 | mutex_unlock(&mvm->mutex); |
1231 | } | |
1232 | ||
35a000b7 DS |
1233 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
1234 | struct ieee80211_vif *vif, | |
1235 | struct cfg80211_sched_scan_request *req, | |
1236 | struct ieee80211_sched_scan_ies *ies) | |
1237 | { | |
1238 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1239 | int ret; | |
1240 | ||
1241 | mutex_lock(&mvm->mutex); | |
1242 | ||
1243 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { | |
1244 | IWL_DEBUG_SCAN(mvm, | |
1245 | "SCHED SCAN request during internal scan - abort\n"); | |
1246 | ret = -EBUSY; | |
1247 | goto out; | |
1248 | } | |
1249 | ||
1250 | mvm->scan_status = IWL_MVM_SCAN_SCHED; | |
1251 | ||
1252 | ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); | |
1253 | if (ret) | |
1254 | goto err; | |
1255 | ||
1256 | ret = iwl_mvm_config_sched_scan_profiles(mvm, req); | |
1257 | if (ret) | |
1258 | goto err; | |
1259 | ||
1260 | ret = iwl_mvm_sched_scan_start(mvm, req); | |
1261 | if (!ret) | |
1262 | goto out; | |
1263 | err: | |
1264 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
1265 | out: | |
1266 | mutex_unlock(&mvm->mutex); | |
1267 | return ret; | |
1268 | } | |
1269 | ||
1270 | static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, | |
1271 | struct ieee80211_vif *vif) | |
1272 | { | |
1273 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1274 | ||
1275 | mutex_lock(&mvm->mutex); | |
1276 | iwl_mvm_sched_scan_stop(mvm); | |
1277 | mutex_unlock(&mvm->mutex); | |
1278 | } | |
1279 | ||
8ca151b5 JB |
1280 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
1281 | enum set_key_cmd cmd, | |
1282 | struct ieee80211_vif *vif, | |
1283 | struct ieee80211_sta *sta, | |
1284 | struct ieee80211_key_conf *key) | |
1285 | { | |
1286 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1287 | int ret; | |
1288 | ||
1289 | if (iwlwifi_mod_params.sw_crypto) { | |
1290 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1291 | return -EOPNOTSUPP; | |
1292 | } | |
1293 | ||
1294 | switch (key->cipher) { | |
1295 | case WLAN_CIPHER_SUITE_TKIP: | |
1296 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1297 | /* fall-through */ | |
1298 | case WLAN_CIPHER_SUITE_CCMP: | |
1299 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1300 | break; | |
1301 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1302 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1303 | break; | |
1304 | case WLAN_CIPHER_SUITE_WEP40: | |
1305 | case WLAN_CIPHER_SUITE_WEP104: | |
1306 | /* | |
1307 | * Support for TX only, at least for now, so accept | |
1308 | * the key and do nothing else. Then mac80211 will | |
1309 | * pass it for TX but we don't have to use it for RX. | |
1310 | */ | |
1311 | return 0; | |
1312 | default: | |
1313 | return -EOPNOTSUPP; | |
1314 | } | |
1315 | ||
1316 | mutex_lock(&mvm->mutex); | |
1317 | ||
1318 | switch (cmd) { | |
1319 | case SET_KEY: | |
5023d966 JB |
1320 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
1321 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
1322 | /* | |
1323 | * GTK on AP interface is a TX-only key, return 0; | |
1324 | * on IBSS they're per-station and because we're lazy | |
1325 | * we don't support them for RX, so do the same. | |
1326 | */ | |
6caffd4f JB |
1327 | ret = 0; |
1328 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1329 | break; | |
1330 | } | |
1331 | ||
8ca151b5 JB |
1332 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1333 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1334 | if (ret) { | |
1335 | IWL_WARN(mvm, "set key failed\n"); | |
1336 | /* | |
1337 | * can't add key for RX, but we don't need it | |
1338 | * in the device for TX so still return 0 | |
1339 | */ | |
6caffd4f | 1340 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1341 | ret = 0; |
1342 | } | |
1343 | ||
1344 | break; | |
1345 | case DISABLE_KEY: | |
6caffd4f JB |
1346 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1347 | ret = 0; | |
1348 | break; | |
1349 | } | |
1350 | ||
8ca151b5 JB |
1351 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
1352 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
1353 | break; | |
1354 | default: | |
1355 | ret = -EINVAL; | |
1356 | } | |
1357 | ||
1358 | mutex_unlock(&mvm->mutex); | |
1359 | return ret; | |
1360 | } | |
1361 | ||
1362 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
1363 | struct ieee80211_vif *vif, | |
1364 | struct ieee80211_key_conf *keyconf, | |
1365 | struct ieee80211_sta *sta, | |
1366 | u32 iv32, u16 *phase1key) | |
1367 | { | |
1368 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1369 | ||
5023d966 JB |
1370 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
1371 | return; | |
1372 | ||
8ca151b5 JB |
1373 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
1374 | } | |
1375 | ||
1376 | ||
1377 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
1378 | struct ieee80211_vif *vif, | |
1379 | struct ieee80211_channel *channel, | |
d339d5ca IP |
1380 | int duration, |
1381 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
1382 | { |
1383 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 1384 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 1385 | struct cfg80211_chan_def chandef; |
31d385ae IP |
1386 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
1387 | int ret, i; | |
1388 | ||
1389 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
1390 | duration, type); | |
8ca151b5 JB |
1391 | |
1392 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
1393 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
1394 | return -EINVAL; | |
1395 | } | |
1396 | ||
8ca151b5 JB |
1397 | mutex_lock(&mvm->mutex); |
1398 | ||
31d385ae IP |
1399 | for (i = 0; i < NUM_PHY_CTX; i++) { |
1400 | phy_ctxt = &mvm->phy_ctxts[i]; | |
1401 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
1402 | continue; | |
1403 | ||
1404 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
1405 | /* | |
1406 | * Unbind the P2P_DEVICE from the current PHY context, | |
1407 | * and if the PHY context is not used remove it. | |
1408 | */ | |
1409 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1410 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1411 | goto out_unlock; | |
1412 | ||
1413 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1414 | ||
1415 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
1416 | mvmvif->phy_ctxt = phy_ctxt; | |
1417 | ||
1418 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1419 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1420 | goto out_unlock; | |
1421 | ||
1422 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1423 | goto schedule_time_event; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | /* Need to update the PHY context only if the ROC channel changed */ | |
1428 | if (channel == mvmvif->phy_ctxt->channel) | |
1429 | goto schedule_time_event; | |
1430 | ||
8ca151b5 | 1431 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 1432 | |
31d385ae IP |
1433 | /* |
1434 | * Change the PHY context configuration as it is currently referenced | |
1435 | * only by the P2P Device MAC | |
1436 | */ | |
1437 | if (mvmvif->phy_ctxt->ref == 1) { | |
1438 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
1439 | &chandef, 1, 1); | |
1440 | if (ret) | |
1441 | goto out_unlock; | |
1442 | } else { | |
1443 | /* | |
1444 | * The PHY context is shared with other MACs. Need to remove the | |
1445 | * P2P Device from the binding, allocate an new PHY context and | |
1446 | * create a new binding | |
1447 | */ | |
1448 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
1449 | if (!phy_ctxt) { | |
1450 | ret = -ENOSPC; | |
1451 | goto out_unlock; | |
1452 | } | |
1453 | ||
1454 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
1455 | 1, 1); | |
1456 | if (ret) { | |
1457 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
1458 | goto out_unlock; | |
1459 | } | |
1460 | ||
1461 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
1462 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1463 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1464 | goto out_unlock; | |
1465 | ||
1466 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1467 | ||
1468 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
1469 | mvmvif->phy_ctxt = phy_ctxt; | |
1470 | ||
1471 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1472 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1473 | goto out_unlock; | |
1474 | ||
1475 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1476 | } | |
1477 | ||
1478 | schedule_time_event: | |
8ca151b5 | 1479 | /* Schedule the time events */ |
e635c797 | 1480 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 1481 | |
31d385ae | 1482 | out_unlock: |
8ca151b5 JB |
1483 | mutex_unlock(&mvm->mutex); |
1484 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
1485 | return ret; |
1486 | } | |
1487 | ||
1488 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
1489 | { | |
1490 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1491 | ||
1492 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
1493 | ||
1494 | mutex_lock(&mvm->mutex); | |
1495 | iwl_mvm_stop_p2p_roc(mvm); | |
1496 | mutex_unlock(&mvm->mutex); | |
1497 | ||
1498 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
1503 | struct ieee80211_chanctx_conf *ctx) | |
1504 | { | |
1505 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1506 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1507 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
1508 | int ret; |
1509 | ||
53a9d61e | 1510 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 1511 | |
8ca151b5 | 1512 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
1513 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1514 | if (!phy_ctxt) { | |
1515 | ret = -ENOSPC; | |
1516 | goto out; | |
1517 | } | |
8ca151b5 | 1518 | |
53a9d61e IP |
1519 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, |
1520 | ctx->rx_chains_static, | |
1521 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
1522 | if (ret) { |
1523 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
1524 | goto out; | |
1525 | } | |
1526 | ||
53a9d61e | 1527 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
1528 | *phy_ctxt_id = phy_ctxt->id; |
1529 | out: | |
8ca151b5 JB |
1530 | mutex_unlock(&mvm->mutex); |
1531 | return ret; | |
1532 | } | |
1533 | ||
1534 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
1535 | struct ieee80211_chanctx_conf *ctx) | |
1536 | { | |
1537 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1538 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1539 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1540 | |
1541 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 1542 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
1543 | mutex_unlock(&mvm->mutex); |
1544 | } | |
1545 | ||
1546 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
1547 | struct ieee80211_chanctx_conf *ctx, | |
1548 | u32 changed) | |
1549 | { | |
1550 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1551 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1552 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 1553 | |
31d385ae IP |
1554 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
1555 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
1556 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
1557 | IEEE80211_CHANCTX_CHANGE_RADAR)), | |
1558 | "Cannot change PHY. Ref=%d, changed=0x%X\n", | |
1559 | phy_ctxt->ref, changed)) | |
1560 | return; | |
1561 | ||
8ca151b5 JB |
1562 | mutex_lock(&mvm->mutex); |
1563 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, | |
1564 | ctx->rx_chains_static, | |
1565 | ctx->rx_chains_dynamic); | |
8e484f0b | 1566 | iwl_mvm_bt_coex_vif_change(mvm); |
8ca151b5 JB |
1567 | mutex_unlock(&mvm->mutex); |
1568 | } | |
1569 | ||
1570 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
1571 | struct ieee80211_vif *vif, | |
1572 | struct ieee80211_chanctx_conf *ctx) | |
1573 | { | |
1574 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1575 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1576 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1577 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1578 | int ret; | |
1579 | ||
1580 | mutex_lock(&mvm->mutex); | |
1581 | ||
fe0f2de3 | 1582 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
1583 | |
1584 | switch (vif->type) { | |
1585 | case NL80211_IFTYPE_AP: | |
5023d966 | 1586 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
1587 | /* |
1588 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 1589 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
1590 | */ |
1591 | ret = 0; | |
1592 | goto out_unlock; | |
1593 | case NL80211_IFTYPE_STATION: | |
8ca151b5 JB |
1594 | case NL80211_IFTYPE_MONITOR: |
1595 | break; | |
1596 | default: | |
1597 | ret = -EINVAL; | |
1598 | goto out_unlock; | |
1599 | } | |
1600 | ||
1601 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1602 | if (ret) | |
1603 | goto out_unlock; | |
1604 | ||
1605 | /* | |
1606 | * Setting the quota at this stage is only required for monitor | |
1607 | * interfaces. For the other types, the bss_info changed flow | |
1608 | * will handle quota settings. | |
1609 | */ | |
1610 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 1611 | mvmvif->monitor_active = true; |
8ca151b5 JB |
1612 | ret = iwl_mvm_update_quotas(mvm, vif); |
1613 | if (ret) | |
1614 | goto out_remove_binding; | |
1615 | } | |
1616 | ||
1617 | goto out_unlock; | |
1618 | ||
1619 | out_remove_binding: | |
1620 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1621 | out_unlock: | |
1622 | mutex_unlock(&mvm->mutex); | |
1623 | if (ret) | |
1624 | mvmvif->phy_ctxt = NULL; | |
1625 | return ret; | |
1626 | } | |
1627 | ||
1628 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
1629 | struct ieee80211_vif *vif, | |
1630 | struct ieee80211_chanctx_conf *ctx) | |
1631 | { | |
1632 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1633 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1634 | ||
1635 | mutex_lock(&mvm->mutex); | |
1636 | ||
1637 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
1638 | ||
8ca151b5 | 1639 | switch (vif->type) { |
5023d966 JB |
1640 | case NL80211_IFTYPE_AP: |
1641 | case NL80211_IFTYPE_ADHOC: | |
1642 | goto out_unlock; | |
8ca151b5 | 1643 | case NL80211_IFTYPE_MONITOR: |
1e1391ca IP |
1644 | mvmvif->monitor_active = false; |
1645 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 JB |
1646 | break; |
1647 | default: | |
1648 | break; | |
1649 | } | |
1650 | ||
1e1391ca | 1651 | iwl_mvm_binding_remove_vif(mvm, vif); |
8ca151b5 JB |
1652 | out_unlock: |
1653 | mvmvif->phy_ctxt = NULL; | |
1654 | mutex_unlock(&mvm->mutex); | |
1655 | } | |
1656 | ||
1657 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
1658 | struct ieee80211_sta *sta, | |
1659 | bool set) | |
1660 | { | |
1661 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1662 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1663 | ||
1664 | if (!mvm_sta || !mvm_sta->vif) { | |
1665 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
1666 | return -EINVAL; | |
1667 | } | |
1668 | ||
1669 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
1670 | } | |
1671 | ||
507cadf2 DS |
1672 | #ifdef CONFIG_NL80211_TESTMODE |
1673 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
1674 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
1675 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 1676 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
1677 | }; |
1678 | ||
1679 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
1680 | struct ieee80211_vif *vif, | |
1681 | void *data, int len) | |
1682 | { | |
1683 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
1684 | int err; | |
1685 | u32 noa_duration; | |
1686 | ||
1687 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
1688 | if (err) | |
1689 | return err; | |
1690 | ||
1691 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
1692 | return -EINVAL; | |
1693 | ||
1694 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
1695 | case IWL_MVM_TM_CMD_SET_NOA: | |
1696 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
1697 | !vif->bss_conf.enable_beacon || | |
1698 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
1699 | return -EINVAL; | |
1700 | ||
1701 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
1702 | if (noa_duration >= vif->bss_conf.beacon_int) | |
1703 | return -EINVAL; | |
1704 | ||
1705 | mvm->noa_duration = noa_duration; | |
1706 | mvm->noa_vif = vif; | |
1707 | ||
1708 | return iwl_mvm_update_quotas(mvm, NULL); | |
f6c6ad42 JB |
1709 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
1710 | /* must be associated client vif - ignore authorized */ | |
1711 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
1712 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
1713 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
1714 | return -EINVAL; | |
1715 | ||
1716 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
1717 | return iwl_mvm_enable_beacon_filter(mvm, vif); | |
1718 | return iwl_mvm_disable_beacon_filter(mvm, vif); | |
507cadf2 DS |
1719 | } |
1720 | ||
1721 | return -EOPNOTSUPP; | |
1722 | } | |
1723 | ||
1724 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
1725 | struct ieee80211_vif *vif, | |
1726 | void *data, int len) | |
1727 | { | |
1728 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1729 | int err; | |
1730 | ||
1731 | mutex_lock(&mvm->mutex); | |
1732 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
1733 | mutex_unlock(&mvm->mutex); | |
1734 | ||
1735 | return err; | |
1736 | } | |
1737 | #endif | |
1738 | ||
8ca151b5 JB |
1739 | struct ieee80211_ops iwl_mvm_hw_ops = { |
1740 | .tx = iwl_mvm_mac_tx, | |
1741 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
1742 | .start = iwl_mvm_mac_start, | |
1743 | .restart_complete = iwl_mvm_mac_restart_complete, | |
1744 | .stop = iwl_mvm_mac_stop, | |
1745 | .add_interface = iwl_mvm_mac_add_interface, | |
1746 | .remove_interface = iwl_mvm_mac_remove_interface, | |
1747 | .config = iwl_mvm_mac_config, | |
1748 | .configure_filter = iwl_mvm_configure_filter, | |
1749 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
1750 | .hw_scan = iwl_mvm_mac_hw_scan, | |
1751 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1752 | .sta_state = iwl_mvm_mac_sta_state, | |
1753 | .sta_notify = iwl_mvm_mac_sta_notify, | |
1754 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
1755 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, | |
1756 | .conf_tx = iwl_mvm_mac_conf_tx, | |
1757 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
35a000b7 DS |
1758 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
1759 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
1760 | .set_key = iwl_mvm_mac_set_key, |
1761 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
1762 | .remain_on_channel = iwl_mvm_roc, | |
1763 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
1764 | .add_chanctx = iwl_mvm_add_chanctx, |
1765 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
1766 | .change_chanctx = iwl_mvm_change_chanctx, | |
1767 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
1768 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
1769 | ||
5023d966 JB |
1770 | .start_ap = iwl_mvm_start_ap_ibss, |
1771 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
1772 | .join_ibss = iwl_mvm_start_ap_ibss, | |
1773 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
1774 | |
1775 | .set_tim = iwl_mvm_set_tim, | |
1776 | ||
507cadf2 DS |
1777 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
1778 | ||
8ca151b5 JB |
1779 | #ifdef CONFIG_PM_SLEEP |
1780 | /* look at d3.c */ | |
1781 | .suspend = iwl_mvm_suspend, | |
1782 | .resume = iwl_mvm_resume, | |
1783 | .set_wakeup = iwl_mvm_set_wakeup, | |
1784 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
1785 | #if IS_ENABLED(CONFIG_IPV6) | |
1786 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
1787 | #endif | |
1788 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
1789 | #endif | |
1790 | }; |