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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 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8ca151b5 JB |
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 | * | |
51368bf7 | 33 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8ca151b5 JB |
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> |
2ee8f021 | 69 | #include <linux/if_arp.h> |
8ca151b5 | 70 | #include <net/mac80211.h> |
7b1dd048 | 71 | #include <net/ieee80211_radiotap.h> |
f0c2646a | 72 | #include <net/tcp.h> |
8ca151b5 JB |
73 | |
74 | #include "iwl-op-mode.h" | |
75 | #include "iwl-io.h" | |
76 | #include "mvm.h" | |
77 | #include "sta.h" | |
78 | #include "time-event.h" | |
79 | #include "iwl-eeprom-parse.h" | |
80 | #include "fw-api-scan.h" | |
81 | #include "iwl-phy-db.h" | |
507cadf2 | 82 | #include "testmode.h" |
655e6d6d EG |
83 | #include "iwl-fw-error-dump.h" |
84 | #include "iwl-prph.h" | |
8ca151b5 JB |
85 | |
86 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
87 | { | |
88 | .max = 1, | |
8eb38710 | 89 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 90 | }, |
3c15a0fb JB |
91 | { |
92 | .max = 1, | |
8eb38710 IP |
93 | .types = BIT(NL80211_IFTYPE_AP) | |
94 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
95 | BIT(NL80211_IFTYPE_P2P_GO), |
96 | }, | |
97 | { | |
98 | .max = 1, | |
99 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
100 | }, | |
8ca151b5 JB |
101 | }; |
102 | ||
103 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
104 | { | |
105 | .num_different_channels = 1, | |
106 | .max_interfaces = 3, | |
107 | .limits = iwl_mvm_limits, | |
108 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
109 | }, | |
110 | }; | |
111 | ||
f0c2646a JB |
112 | #ifdef CONFIG_PM_SLEEP |
113 | static const struct nl80211_wowlan_tcp_data_token_feature | |
114 | iwl_mvm_wowlan_tcp_token_feature = { | |
115 | .min_len = 0, | |
116 | .max_len = 255, | |
117 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
118 | }; | |
119 | ||
120 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
121 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
122 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
123 | sizeof(struct ethhdr) - | |
124 | sizeof(struct iphdr) - | |
125 | sizeof(struct tcphdr), | |
126 | .data_interval_max = 65535, /* __le16 in API */ | |
127 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
128 | sizeof(struct ethhdr) - | |
129 | sizeof(struct iphdr) - | |
130 | sizeof(struct tcphdr), | |
131 | .seq = true, | |
132 | }; | |
133 | #endif | |
134 | ||
77736923 | 135 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
136 | /* |
137 | * Use the reserved field to indicate magic values. | |
138 | * these values will only be used internally by the driver, | |
139 | * and won't make it to the fw (reserved will be 0). | |
140 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
141 | * be the vif's ip address. in case there is not a single | |
142 | * ip address (0, or more than 1), this attribute will | |
143 | * be skipped. | |
144 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
145 | * the LSB bytes of the vif's mac address | |
146 | */ | |
147 | enum { | |
148 | BC_FILTER_MAGIC_NONE = 0, | |
149 | BC_FILTER_MAGIC_IP, | |
150 | BC_FILTER_MAGIC_MAC, | |
151 | }; | |
152 | ||
77736923 EP |
153 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
154 | { | |
155 | /* arp */ | |
156 | .discard = 0, | |
157 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
158 | .attrs = { | |
159 | { | |
160 | /* frame type - arp, hw type - ethernet */ | |
161 | .offset_type = | |
162 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
163 | .offset = sizeof(rfc1042_header), | |
164 | .val = cpu_to_be32(0x08060001), | |
165 | .mask = cpu_to_be32(0xffffffff), | |
166 | }, | |
2ee8f021 EP |
167 | { |
168 | /* arp dest ip */ | |
169 | .offset_type = | |
170 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
171 | .offset = sizeof(rfc1042_header) + 2 + | |
172 | sizeof(struct arphdr) + | |
173 | ETH_ALEN + sizeof(__be32) + | |
174 | ETH_ALEN, | |
175 | .mask = cpu_to_be32(0xffffffff), | |
176 | /* mark it as special field */ | |
177 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
178 | }, | |
179 | }, | |
180 | }, | |
181 | { | |
182 | /* dhcp offer bcast */ | |
183 | .discard = 0, | |
184 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
185 | .attrs = { | |
186 | { | |
187 | /* udp dest port - 68 (bootp client)*/ | |
188 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
189 | .offset = offsetof(struct udphdr, dest), | |
190 | .val = cpu_to_be32(0x00440000), | |
191 | .mask = cpu_to_be32(0xffff0000), | |
192 | }, | |
193 | { | |
194 | /* dhcp - lsb bytes of client hw address */ | |
195 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
196 | .offset = 38, | |
197 | .mask = cpu_to_be32(0xffffffff), | |
198 | /* mark it as special field */ | |
199 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
200 | }, | |
77736923 EP |
201 | }, |
202 | }, | |
203 | /* last filter must be empty */ | |
204 | {}, | |
205 | }; | |
206 | #endif | |
207 | ||
7498cf4c EP |
208 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
209 | { | |
7bb426ea | 210 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
211 | return; |
212 | ||
213 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
214 | spin_lock_bh(&mvm->refs_lock); |
215 | mvm->refs[ref_type]++; | |
216 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
217 | iwl_trans_ref(mvm->trans); |
218 | } | |
219 | ||
220 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
221 | { | |
7bb426ea | 222 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
223 | return; |
224 | ||
225 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
226 | spin_lock_bh(&mvm->refs_lock); |
227 | WARN_ON(!mvm->refs[ref_type]--); | |
228 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
229 | iwl_trans_unref(mvm->trans); |
230 | } | |
231 | ||
576eeee9 EP |
232 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
233 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 234 | { |
576eeee9 | 235 | int i, j; |
7498cf4c | 236 | |
7bb426ea | 237 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
238 | return; |
239 | ||
576eeee9 EP |
240 | spin_lock_bh(&mvm->refs_lock); |
241 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
242 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
243 | continue; |
244 | ||
576eeee9 EP |
245 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
246 | i, mvm->refs[i]); | |
247 | for (j = 0; j < mvm->refs[i]; j++) | |
248 | iwl_trans_unref(mvm->trans); | |
249 | mvm->refs[i] = 0; | |
7498cf4c | 250 | } |
576eeee9 | 251 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
252 | } |
253 | ||
576eeee9 | 254 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
255 | { |
256 | iwl_mvm_ref(mvm, ref_type); | |
257 | ||
258 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
259 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
260 | HZ)) { | |
261 | WARN_ON_ONCE(1); | |
262 | iwl_mvm_unref(mvm, ref_type); | |
263 | return -EIO; | |
264 | } | |
265 | ||
266 | return 0; | |
267 | } | |
268 | ||
fe0f2de3 IP |
269 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
270 | { | |
271 | int i; | |
272 | ||
273 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
274 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
275 | mvm->phy_ctxts[i].id = i; | |
276 | mvm->phy_ctxts[i].ref = 0; | |
277 | } | |
278 | } | |
279 | ||
20f1a5de DS |
280 | static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) |
281 | { | |
282 | /* we create the 802.11 header and SSID element */ | |
283 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID) | |
284 | return mvm->fw->ucode_capa.max_probe_length - 24 - 2; | |
285 | return mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
286 | } | |
287 | ||
8ca151b5 JB |
288 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
289 | { | |
290 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 291 | int num_mac, ret, i; |
8ca151b5 JB |
292 | |
293 | /* Tell mac80211 our characteristics */ | |
294 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
295 | IEEE80211_HW_SPECTRUM_MGMT | | |
296 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
297 | IEEE80211_HW_QUEUE_CONTROL | | |
298 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
299 | IEEE80211_HW_SUPPORTS_PS | |
300 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 301 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 302 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be | 303 | IEEE80211_HW_CONNECTION_MONITOR | |
f0c97783 | 304 | IEEE80211_HW_CHANCTX_STA_CSA | |
147fc9be | 305 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
e8e626ad | 306 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
8ca151b5 | 307 | |
19e737c9 | 308 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 309 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
310 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
311 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
312 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC; | |
8ca151b5 JB |
313 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
314 | ||
315 | /* | |
316 | * Enable 11w if advertised by firmware and software crypto | |
317 | * is not enabled (as the firmware will interpret some mgmt | |
318 | * packets, so enabling it with software crypto isn't safe) | |
319 | */ | |
320 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
321 | !iwlwifi_mod_params.sw_crypto) | |
322 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
323 | ||
1504f48d MC |
324 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT && |
325 | IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 && | |
326 | !iwlwifi_mod_params.uapsd_disable) { | |
327 | hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; | |
328 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; | |
329 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
330 | } | |
e8e626ad | 331 | |
fb98be5e DS |
332 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) |
333 | hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS; | |
334 | ||
8ca151b5 JB |
335 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
336 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 337 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
338 | |
339 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
340 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
341 | BIT(NL80211_IFTYPE_AP) | | |
342 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
343 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
344 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 345 | |
a2f73b6c LR |
346 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
347 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
348 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 349 | |
3e56eadf JB |
350 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
351 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
352 | ||
bd3398e2 AO |
353 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW) |
354 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; | |
355 | ||
8ca151b5 JB |
356 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
357 | hw->wiphy->n_iface_combinations = | |
358 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
359 | ||
c451e6d4 | 360 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
361 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
362 | ||
363 | /* Extract MAC address */ | |
364 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
365 | hw->wiphy->addresses = mvm->addresses; | |
366 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
367 | |
368 | /* Extract additional MAC addresses if available */ | |
369 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
370 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
371 | ||
372 | for (i = 1; i < num_mac; i++) { | |
373 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 374 | ETH_ALEN); |
831e85f3 | 375 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
376 | hw->wiphy->n_addresses++; |
377 | } | |
378 | ||
fe0f2de3 IP |
379 | iwl_mvm_reset_phy_ctxts(mvm); |
380 | ||
20f1a5de DS |
381 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
382 | ||
8ca151b5 JB |
383 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
384 | ||
385 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
386 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
387 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
388 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
389 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
390 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
391 | ||
392 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
393 | ||
ade50652 | 394 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
395 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
396 | else | |
397 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
398 | ||
6efaaf33 EG |
399 | if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) { |
400 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
401 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
402 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
403 | /* we create the 802.11 header and zero length SSID IE. */ | |
404 | hw->wiphy->max_sched_scan_ie_len = | |
405 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
406 | } | |
35a000b7 | 407 | |
8ca151b5 | 408 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 409 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
8a110d9b | 410 | NL80211_FEATURE_P2P_GO_OPPPS; |
8ca151b5 JB |
411 | |
412 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
413 | ||
e36e5433 | 414 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 415 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 416 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 417 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
418 | } |
419 | ||
8ca151b5 | 420 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
421 | if (iwl_mvm_is_d0i3_supported(mvm) && |
422 | device_can_wakeup(mvm->trans->dev)) { | |
423 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
424 | hw->wiphy->wowlan = &mvm->wowlan; | |
425 | } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
426 | mvm->trans->ops->d3_suspend && |
427 | mvm->trans->ops->d3_resume && | |
428 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
429 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
430 | WIPHY_WOWLAN_DISCONNECT | | |
431 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
432 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 433 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
434 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
435 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
436 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
437 | ||
438 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
439 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
440 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
441 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
442 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
443 | } |
444 | #endif | |
445 | ||
77736923 EP |
446 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
447 | /* assign default bcast filtering configuration */ | |
448 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
449 | #endif | |
450 | ||
8ca151b5 JB |
451 | ret = iwl_mvm_leds_init(mvm); |
452 | if (ret) | |
453 | return ret; | |
454 | ||
b7327d89 EG |
455 | ret = ieee80211_register_hw(mvm->hw); |
456 | if (ret) | |
457 | iwl_mvm_leds_exit(mvm); | |
458 | ||
459 | return ret; | |
8ca151b5 JB |
460 | } |
461 | ||
b2492501 AN |
462 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
463 | struct ieee80211_sta *sta, | |
464 | struct sk_buff *skb) | |
465 | { | |
466 | struct iwl_mvm_sta *mvmsta; | |
467 | bool defer = false; | |
468 | ||
469 | /* | |
470 | * double check the IN_D0I3 flag both before and after | |
471 | * taking the spinlock, in order to prevent taking | |
472 | * the spinlock when not needed. | |
473 | */ | |
474 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
475 | return false; | |
476 | ||
477 | spin_lock(&mvm->d0i3_tx_lock); | |
478 | /* | |
479 | * testing the flag again ensures the skb dequeue | |
480 | * loop (on d0i3 exit) hasn't run yet. | |
481 | */ | |
482 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
483 | goto out; | |
484 | ||
485 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
486 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
487 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
488 | goto out; | |
489 | ||
490 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
491 | ieee80211_stop_queues(mvm->hw); | |
492 | ||
493 | /* trigger wakeup */ | |
494 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
495 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
496 | ||
497 | defer = true; | |
498 | out: | |
499 | spin_unlock(&mvm->d0i3_tx_lock); | |
500 | return defer; | |
501 | } | |
502 | ||
8ca151b5 JB |
503 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
504 | struct ieee80211_tx_control *control, | |
505 | struct sk_buff *skb) | |
506 | { | |
507 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
508 | struct ieee80211_sta *sta = control->sta; |
509 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
510 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 511 | |
9ee718aa EL |
512 | if (iwl_mvm_is_radio_killed(mvm)) { |
513 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
514 | goto drop; |
515 | } | |
516 | ||
398e8c6c | 517 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
518 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
519 | goto drop; | |
520 | ||
3e56eadf JB |
521 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
522 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
523 | ieee80211_is_mgmt(hdr->frame_control) && | |
524 | !ieee80211_is_deauth(hdr->frame_control) && | |
525 | !ieee80211_is_disassoc(hdr->frame_control) && | |
526 | !ieee80211_is_action(hdr->frame_control))) | |
527 | sta = NULL; | |
528 | ||
529 | if (sta) { | |
b2492501 AN |
530 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
531 | return; | |
3e56eadf | 532 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
533 | goto drop; |
534 | return; | |
535 | } | |
536 | ||
537 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
538 | goto drop; | |
539 | return; | |
540 | drop: | |
541 | ieee80211_free_txskb(hw, skb); | |
542 | } | |
543 | ||
205e2210 EG |
544 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
545 | { | |
546 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
547 | return false; | |
548 | return true; | |
549 | } | |
550 | ||
551 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
552 | { | |
553 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
554 | return false; | |
555 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
556 | return true; | |
557 | ||
558 | /* enabled by default */ | |
559 | return true; | |
560 | } | |
561 | ||
8ca151b5 JB |
562 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
563 | struct ieee80211_vif *vif, | |
564 | enum ieee80211_ampdu_mlme_action action, | |
565 | struct ieee80211_sta *sta, u16 tid, | |
566 | u16 *ssn, u8 buf_size) | |
567 | { | |
568 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
569 | int ret; | |
b2492501 | 570 | bool tx_agg_ref = false; |
8ca151b5 JB |
571 | |
572 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
573 | sta->addr, tid, action); | |
574 | ||
575 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
576 | return -EACCES; | |
577 | ||
b2492501 | 578 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
579 | switch (action) { |
580 | case IEEE80211_AMPDU_TX_START: | |
581 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
582 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
583 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
584 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 585 | /* |
9256c205 EP |
586 | * for tx start, wait synchronously until D0i3 exit to |
587 | * get the correct sequence number for the tid. | |
588 | * additionally, some other ampdu actions use direct | |
589 | * target access, which is not handled automatically | |
590 | * by the trans layer (unlike commands), so wait for | |
591 | * d0i3 exit in these cases as well. | |
b2492501 | 592 | */ |
d40fc489 GG |
593 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
594 | if (ret) | |
595 | return ret; | |
596 | ||
597 | tx_agg_ref = true; | |
9256c205 EP |
598 | break; |
599 | default: | |
600 | break; | |
b2492501 AN |
601 | } |
602 | ||
8ca151b5 JB |
603 | mutex_lock(&mvm->mutex); |
604 | ||
605 | switch (action) { | |
606 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 607 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
608 | ret = -EINVAL; |
609 | break; | |
610 | } | |
611 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
612 | break; | |
613 | case IEEE80211_AMPDU_RX_STOP: | |
614 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
615 | break; | |
616 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 617 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
618 | ret = -EINVAL; |
619 | break; | |
620 | } | |
8ca151b5 JB |
621 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
622 | break; | |
623 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
624 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
625 | break; | |
8ca151b5 JB |
626 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
627 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 628 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
629 | break; |
630 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
631 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
632 | break; | |
633 | default: | |
634 | WARN_ON_ONCE(1); | |
635 | ret = -EINVAL; | |
636 | break; | |
637 | } | |
638 | mutex_unlock(&mvm->mutex); | |
639 | ||
b2492501 AN |
640 | /* |
641 | * If the tid is marked as started, we won't use it for offloaded | |
642 | * traffic on the next D0i3 entry. It's safe to unref. | |
643 | */ | |
644 | if (tx_agg_ref) | |
645 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
646 | ||
8ca151b5 JB |
647 | return ret; |
648 | } | |
649 | ||
650 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
651 | struct ieee80211_vif *vif) | |
652 | { | |
653 | struct iwl_mvm *mvm = data; | |
654 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
655 | ||
656 | mvmvif->uploaded = false; | |
657 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
658 | ||
659 | /* does this make sense at all? */ | |
660 | mvmvif->color++; | |
661 | ||
662 | spin_lock_bh(&mvm->time_event_lock); | |
663 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
664 | spin_unlock_bh(&mvm->time_event_lock); | |
665 | ||
fe0f2de3 | 666 | mvmvif->phy_ctxt = NULL; |
8a275bad | 667 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
668 | } |
669 | ||
655e6d6d EG |
670 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
671 | static void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) | |
672 | { | |
673 | struct iwl_fw_error_dump_file *dump_file; | |
674 | struct iwl_fw_error_dump_data *dump_data; | |
675 | struct iwl_fw_error_dump_info *dump_info; | |
48eb7b34 | 676 | struct iwl_mvm_dump_ptrs *fw_error_dump; |
655e6d6d EG |
677 | const struct fw_img *img; |
678 | u32 sram_len, sram_ofs; | |
679 | u32 file_len, rxf_len; | |
680 | unsigned long flags; | |
655e6d6d EG |
681 | int reg_val; |
682 | ||
683 | lockdep_assert_held(&mvm->mutex); | |
684 | ||
685 | if (mvm->fw_error_dump) | |
686 | return; | |
687 | ||
48eb7b34 EG |
688 | fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL); |
689 | if (!fw_error_dump) | |
690 | return; | |
691 | ||
655e6d6d EG |
692 | img = &mvm->fw->img[mvm->cur_ucode]; |
693 | sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
694 | sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
695 | ||
696 | /* reading buffer size */ | |
697 | reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR); | |
698 | rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS; | |
699 | ||
700 | /* the register holds the value divided by 128 */ | |
701 | rxf_len = rxf_len << 7; | |
702 | ||
703 | file_len = sizeof(*dump_file) + | |
704 | sizeof(*dump_data) * 3 + | |
705 | sram_len + | |
706 | rxf_len + | |
707 | sizeof(*dump_info); | |
708 | ||
5bfe6f53 | 709 | dump_file = vzalloc(file_len); |
48eb7b34 EG |
710 | if (!dump_file) { |
711 | kfree(fw_error_dump); | |
655e6d6d | 712 | return; |
48eb7b34 | 713 | } |
655e6d6d | 714 | |
48eb7b34 | 715 | fw_error_dump->op_mode_ptr = dump_file; |
655e6d6d EG |
716 | |
717 | dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); | |
655e6d6d EG |
718 | dump_data = (void *)dump_file->data; |
719 | ||
720 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO); | |
721 | dump_data->len = cpu_to_le32(sizeof(*dump_info)); | |
722 | dump_info = (void *) dump_data->data; | |
723 | dump_info->device_family = | |
724 | mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ? | |
725 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) : | |
726 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8); | |
727 | memcpy(dump_info->fw_human_readable, mvm->fw->human_readable, | |
728 | sizeof(dump_info->fw_human_readable)); | |
729 | strncpy(dump_info->dev_human_readable, mvm->cfg->name, | |
730 | sizeof(dump_info->dev_human_readable)); | |
731 | strncpy(dump_info->bus_human_readable, mvm->dev->bus->name, | |
732 | sizeof(dump_info->bus_human_readable)); | |
733 | ||
734 | dump_data = iwl_fw_error_next_data(dump_data); | |
735 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); | |
736 | dump_data->len = cpu_to_le32(rxf_len); | |
737 | ||
738 | if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) { | |
739 | u32 *rxf = (void *)dump_data->data; | |
740 | int i; | |
741 | ||
742 | for (i = 0; i < (rxf_len / sizeof(u32)); i++) { | |
743 | iwl_trans_write_prph(mvm->trans, | |
744 | RXF_LD_FENCE_OFFSET_ADDR, | |
745 | i * sizeof(u32)); | |
746 | rxf[i] = iwl_trans_read_prph(mvm->trans, | |
747 | RXF_FIFO_RD_FENCE_ADDR); | |
748 | } | |
749 | iwl_trans_release_nic_access(mvm->trans, &flags); | |
750 | } | |
751 | ||
752 | dump_data = iwl_fw_error_next_data(dump_data); | |
753 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM); | |
754 | dump_data->len = cpu_to_le32(sram_len); | |
755 | iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data, | |
756 | sram_len); | |
757 | ||
48eb7b34 EG |
758 | fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); |
759 | fw_error_dump->op_mode_len = file_len; | |
760 | if (fw_error_dump->trans_ptr) | |
761 | file_len += fw_error_dump->trans_ptr->len; | |
762 | dump_file->file_len = cpu_to_le32(file_len); | |
763 | mvm->fw_error_dump = fw_error_dump; | |
655e6d6d EG |
764 | } |
765 | #endif | |
766 | ||
8ca151b5 JB |
767 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) |
768 | { | |
1bd3cbc1 EG |
769 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
770 | static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL }; | |
771 | ||
772 | iwl_mvm_fw_error_dump(mvm); | |
773 | ||
774 | /* notify the userspace about the error we had */ | |
775 | kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
776 | #endif | |
777 | ||
8ca151b5 | 778 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 JB |
779 | |
780 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
781 | ||
782 | /* just in case one was running */ | |
783 | ieee80211_remain_on_channel_expired(mvm->hw); | |
784 | ||
785 | ieee80211_iterate_active_interfaces_atomic( | |
786 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
787 | iwl_mvm_cleanup_iterator, mvm); | |
788 | ||
fe0f2de3 | 789 | mvm->p2p_device_vif = NULL; |
37577fe2 | 790 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
791 | |
792 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
793 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
794 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
8a275bad EG |
795 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
796 | memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); | |
797 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); | |
798 | memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); | |
799 | memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); | |
800 | memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); | |
8ca151b5 JB |
801 | |
802 | ieee80211_wake_queues(mvm->hw); | |
803 | ||
7498cf4c EP |
804 | /* cleanup all stale references (scan, roc), but keep the |
805 | * ucode_down ref until reconfig is complete */ | |
806 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
807 | ||
8ca151b5 | 808 | mvm->vif_count = 0; |
113a0447 | 809 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
810 | } |
811 | ||
812 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
813 | { | |
814 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
815 | int ret; | |
816 | ||
817 | mutex_lock(&mvm->mutex); | |
818 | ||
819 | /* Clean up some internal and mac80211 state on restart */ | |
820 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
821 | iwl_mvm_restart_cleanup(mvm); | |
822 | ||
823 | ret = iwl_mvm_up(mvm); | |
c47af22a JB |
824 | |
825 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
826 | /* Something went wrong - we need to finish some cleanup | |
827 | * that normally iwl_mvm_mac_restart_complete() below | |
828 | * would do. | |
829 | */ | |
830 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
831 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
832 | } | |
833 | ||
8ca151b5 JB |
834 | mutex_unlock(&mvm->mutex); |
835 | ||
836 | return ret; | |
837 | } | |
838 | ||
839 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
840 | { | |
841 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
842 | int ret; | |
843 | ||
844 | mutex_lock(&mvm->mutex); | |
845 | ||
846 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 847 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
0166230c | 848 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
849 | if (ret) |
850 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
851 | ret); | |
852 | ||
7498cf4c EP |
853 | /* allow transport/FW low power modes */ |
854 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
855 | ||
8ca151b5 JB |
856 | mutex_unlock(&mvm->mutex); |
857 | } | |
858 | ||
859 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
860 | { | |
861 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
862 | ||
37577fe2 | 863 | flush_work(&mvm->d0i3_exit_work); |
8ca151b5 JB |
864 | flush_work(&mvm->async_handlers_wk); |
865 | ||
866 | mutex_lock(&mvm->mutex); | |
7498cf4c EP |
867 | |
868 | /* disallow low power states when the FW is down */ | |
869 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
870 | ||
8ca151b5 JB |
871 | /* async_handlers_wk is now blocked */ |
872 | ||
873 | /* | |
874 | * The work item could be running or queued if the | |
875 | * ROC time event stops just as we get here. | |
876 | */ | |
877 | cancel_work_sync(&mvm->roc_done_wk); | |
878 | ||
879 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
880 | |
881 | iwl_mvm_async_handlers_purge(mvm); | |
882 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
883 | ||
884 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
885 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
886 | ||
887 | mutex_unlock(&mvm->mutex); | |
888 | ||
889 | /* | |
890 | * The worker might have been waiting for the mutex, let it run and | |
891 | * discover that its list is now empty. | |
892 | */ | |
893 | cancel_work_sync(&mvm->async_handlers_wk); | |
894 | } | |
895 | ||
fe0f2de3 IP |
896 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
897 | { | |
898 | u16 i; | |
899 | ||
900 | lockdep_assert_held(&mvm->mutex); | |
901 | ||
902 | for (i = 0; i < NUM_PHY_CTX; i++) | |
903 | if (!mvm->phy_ctxts[i].ref) | |
904 | return &mvm->phy_ctxts[i]; | |
905 | ||
906 | IWL_ERR(mvm, "No available PHY context\n"); | |
907 | return NULL; | |
908 | } | |
909 | ||
ee9c6cb0 EG |
910 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
911 | s8 tx_power) | |
912 | { | |
913 | /* FW is in charge of regulatory enforcement */ | |
914 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
915 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
916 | .pwr_restriction = cpu_to_le16(tx_power), | |
917 | }; | |
918 | ||
a1022927 | 919 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
920 | sizeof(reduce_txpwr_cmd), |
921 | &reduce_txpwr_cmd); | |
922 | } | |
923 | ||
8ca151b5 JB |
924 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
925 | struct ieee80211_vif *vif) | |
926 | { | |
927 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
928 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
929 | int ret; | |
930 | ||
d40fc489 GG |
931 | /* |
932 | * make sure D0i3 exit is completed, otherwise a target access | |
933 | * during tx queue configuration could be done when still in | |
934 | * D0i3 state. | |
935 | */ | |
936 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
937 | if (ret) | |
938 | return ret; | |
939 | ||
8ca151b5 JB |
940 | /* |
941 | * Not much to do here. The stack will not allow interface | |
942 | * types or combinations that we didn't advertise, so we | |
943 | * don't really have to check the types. | |
944 | */ | |
945 | ||
946 | mutex_lock(&mvm->mutex); | |
947 | ||
e89044d7 | 948 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
949 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
950 | if (ret) | |
951 | goto out_unlock; | |
952 | ||
1c2abf72 | 953 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
954 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
955 | mvm->vif_count++; | |
ea183d02 | 956 | |
8ca151b5 JB |
957 | /* |
958 | * The AP binding flow can be done only after the beacon | |
959 | * template is configured (which happens only in the mac80211 | |
960 | * start_ap() flow), and adding the broadcast station can happen | |
961 | * only after the binding. | |
962 | * In addition, since modifying the MAC before adding a bcast | |
963 | * station is not allowed by the FW, delay the adding of MAC context to | |
964 | * the point where we can also add the bcast station. | |
965 | * In short: there's not much we can do at this point, other than | |
966 | * allocating resources :) | |
967 | */ | |
5023d966 JB |
968 | if (vif->type == NL80211_IFTYPE_AP || |
969 | vif->type == NL80211_IFTYPE_ADHOC) { | |
8ca151b5 JB |
970 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); |
971 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
b92e661b EP |
972 | qmask, |
973 | ieee80211_vif_type_p2p(vif)); | |
8ca151b5 JB |
974 | if (ret) { |
975 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
976 | goto out_release; | |
977 | } | |
978 | ||
77740cb4 | 979 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
980 | goto out_unlock; |
981 | } | |
982 | ||
8ca151b5 JB |
983 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
984 | if (ret) | |
985 | goto out_release; | |
986 | ||
999609f1 | 987 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e EG |
988 | if (ret) |
989 | goto out_release; | |
8ca151b5 | 990 | |
7df15b1e | 991 | /* beacon filtering */ |
a1022927 | 992 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
993 | if (ret) |
994 | goto out_remove_mac; | |
995 | ||
7df15b1e | 996 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 997 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 998 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
999 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1000 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1001 | } |
1002 | ||
8ca151b5 JB |
1003 | /* |
1004 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1005 | * so a dedicated PHY context is allocated to it and the corresponding | |
1006 | * MAC context is bound to it at this stage. | |
1007 | */ | |
1008 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1009 | |
fe0f2de3 IP |
1010 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1011 | if (!mvmvif->phy_ctxt) { | |
1012 | ret = -ENOSPC; | |
bd3351ba | 1013 | goto out_free_bf; |
fe0f2de3 | 1014 | } |
8ca151b5 | 1015 | |
53a9d61e | 1016 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1017 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1018 | if (ret) | |
53a9d61e | 1019 | goto out_unref_phy; |
8ca151b5 JB |
1020 | |
1021 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
1022 | if (ret) | |
1023 | goto out_unbind; | |
1024 | ||
1025 | /* Save a pointer to p2p device vif, so it can later be used to | |
1026 | * update the p2p device MAC when a GO is started/stopped */ | |
1027 | mvm->p2p_device_vif = vif; | |
1028 | } | |
1029 | ||
63494374 | 1030 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1031 | goto out_unlock; |
1032 | ||
1033 | out_unbind: | |
1034 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1035 | out_unref_phy: |
fe0f2de3 | 1036 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1037 | out_free_bf: |
1038 | if (mvm->bf_allowed_vif == mvmvif) { | |
1039 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1040 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1041 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1042 | } |
8ca151b5 JB |
1043 | out_remove_mac: |
1044 | mvmvif->phy_ctxt = NULL; | |
1045 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1046 | out_release: | |
5ee2b215 AB |
1047 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1048 | mvm->vif_count--; | |
1c2abf72 | 1049 | |
8ca151b5 JB |
1050 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1051 | out_unlock: | |
1052 | mutex_unlock(&mvm->mutex); | |
1053 | ||
d40fc489 GG |
1054 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1055 | ||
8ca151b5 JB |
1056 | return ret; |
1057 | } | |
1058 | ||
38a12b5b JB |
1059 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1060 | struct ieee80211_vif *vif) | |
8ca151b5 | 1061 | { |
8ca151b5 JB |
1062 | u32 tfd_msk = 0, ac; |
1063 | ||
1064 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1065 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
1066 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
1067 | ||
1068 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
1069 | tfd_msk |= BIT(vif->cab_queue); | |
1070 | ||
1071 | if (tfd_msk) { | |
1072 | mutex_lock(&mvm->mutex); | |
1073 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
1074 | mutex_unlock(&mvm->mutex); | |
1075 | } | |
1076 | ||
1077 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1078 | /* | |
1079 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1080 | * We assume here that all the packets sent to the OFFCHANNEL | |
1081 | * queue are sent in ROC session. | |
1082 | */ | |
1083 | flush_work(&mvm->roc_done_wk); | |
1084 | } else { | |
1085 | /* | |
1086 | * By now, all the AC queues are empty. The AGG queues are | |
1087 | * empty too. We already got all the Tx responses for all the | |
1088 | * packets in the queues. The drain work can have been | |
0742a75a | 1089 | * triggered. Flush it. |
8ca151b5 JB |
1090 | */ |
1091 | flush_work(&mvm->sta_drained_wk); | |
1092 | } | |
38a12b5b JB |
1093 | } |
1094 | ||
1095 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1096 | struct ieee80211_vif *vif) | |
1097 | { | |
1098 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1099 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1100 | ||
1101 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1102 | |
1103 | mutex_lock(&mvm->mutex); | |
1104 | ||
7df15b1e HG |
1105 | if (mvm->bf_allowed_vif == mvmvif) { |
1106 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1107 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1108 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1109 | } |
1110 | ||
63494374 JB |
1111 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1112 | ||
8ca151b5 JB |
1113 | /* |
1114 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1115 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1116 | */ |
5023d966 JB |
1117 | if (vif->type == NL80211_IFTYPE_AP || |
1118 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1119 | #ifdef CONFIG_NL80211_TESTMODE |
1120 | if (vif == mvm->noa_vif) { | |
1121 | mvm->noa_vif = NULL; | |
1122 | mvm->noa_duration = 0; | |
1123 | } | |
1124 | #endif | |
8ca151b5 JB |
1125 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); |
1126 | goto out_release; | |
1127 | } | |
1128 | ||
1129 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1130 | mvm->p2p_device_vif = NULL; | |
1131 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
1132 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 1133 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1134 | mvmvif->phy_ctxt = NULL; |
1135 | } | |
1136 | ||
5ee2b215 | 1137 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1138 | mvm->vif_count--; |
1c2abf72 | 1139 | |
999609f1 | 1140 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1141 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1142 | ||
1143 | out_release: | |
1144 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1145 | mutex_unlock(&mvm->mutex); | |
1146 | } | |
1147 | ||
1148 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1149 | { |
8ca151b5 JB |
1150 | return 0; |
1151 | } | |
1152 | ||
e59647ea EP |
1153 | struct iwl_mvm_mc_iter_data { |
1154 | struct iwl_mvm *mvm; | |
1155 | int port_id; | |
1156 | }; | |
1157 | ||
1158 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1159 | struct ieee80211_vif *vif) | |
1160 | { | |
1161 | struct iwl_mvm_mc_iter_data *data = _data; | |
1162 | struct iwl_mvm *mvm = data->mvm; | |
1163 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1164 | int ret, len; | |
1165 | ||
1166 | /* if we don't have free ports, mcast frames will be dropped */ | |
1167 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1168 | return; | |
1169 | ||
1170 | if (vif->type != NL80211_IFTYPE_STATION || | |
1171 | !vif->bss_conf.assoc) | |
1172 | return; | |
1173 | ||
1174 | cmd->port_id = data->port_id++; | |
1175 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1176 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1177 | ||
1c4abec0 | 1178 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1179 | if (ret) |
1180 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1181 | } | |
1182 | ||
1183 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1184 | { | |
1185 | struct iwl_mvm_mc_iter_data iter_data = { | |
1186 | .mvm = mvm, | |
88f2fd73 MG |
1187 | }; |
1188 | ||
e59647ea EP |
1189 | lockdep_assert_held(&mvm->mutex); |
1190 | ||
1191 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1192 | return; | |
1193 | ||
1c4abec0 | 1194 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1195 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1196 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1197 | } |
1198 | ||
e59647ea EP |
1199 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1200 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1201 | { |
e59647ea EP |
1202 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1203 | struct iwl_mcast_filter_cmd *cmd; | |
1204 | struct netdev_hw_addr *addr; | |
1205 | int addr_count = netdev_hw_addr_list_count(mc_list); | |
1206 | bool pass_all = false; | |
1207 | int len; | |
1208 | ||
1209 | if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) { | |
1210 | pass_all = true; | |
1211 | addr_count = 0; | |
1212 | } | |
1213 | ||
1214 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1215 | cmd = kzalloc(len, GFP_ATOMIC); | |
1216 | if (!cmd) | |
1217 | return 0; | |
1218 | ||
1219 | if (pass_all) { | |
1220 | cmd->pass_all = 1; | |
1221 | return (u64)(unsigned long)cmd; | |
1222 | } | |
1223 | ||
1224 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1225 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1226 | cmd->count, addr->addr); | |
1227 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1228 | addr->addr, ETH_ALEN); | |
1229 | cmd->count++; | |
1230 | } | |
1231 | ||
1232 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1233 | } |
1234 | ||
1235 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1236 | unsigned int changed_flags, | |
1237 | unsigned int *total_flags, | |
1238 | u64 multicast) | |
1239 | { | |
e59647ea EP |
1240 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1241 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1242 | |
e59647ea | 1243 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1244 | |
e59647ea EP |
1245 | /* replace previous configuration */ |
1246 | kfree(mvm->mcast_filter_cmd); | |
1247 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1248 | |
e59647ea EP |
1249 | if (!cmd) |
1250 | goto out; | |
51b6b9e0 | 1251 | |
e59647ea EP |
1252 | iwl_mvm_recalc_multicast(mvm); |
1253 | out: | |
1254 | mutex_unlock(&mvm->mutex); | |
1255 | *total_flags = 0; | |
51b6b9e0 EG |
1256 | } |
1257 | ||
c87163b9 EP |
1258 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1259 | struct iwl_bcast_iter_data { | |
1260 | struct iwl_mvm *mvm; | |
1261 | struct iwl_bcast_filter_cmd *cmd; | |
1262 | u8 current_filter; | |
1263 | }; | |
1264 | ||
1265 | static void | |
1266 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1267 | const struct iwl_fw_bcast_filter *in_filter, | |
1268 | struct iwl_fw_bcast_filter *out_filter) | |
1269 | { | |
1270 | struct iwl_fw_bcast_filter_attr *attr; | |
1271 | int i; | |
1272 | ||
1273 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1274 | ||
1275 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1276 | attr = &out_filter->attrs[i]; | |
1277 | ||
1278 | if (!attr->mask) | |
1279 | break; | |
1280 | ||
2ee8f021 EP |
1281 | switch (attr->reserved1) { |
1282 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1283 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1284 | attr->mask = 0; | |
1285 | continue; | |
1286 | } | |
1287 | ||
1288 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1289 | break; | |
1290 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1291 | attr->val = *(__be32 *)&vif->addr[2]; | |
1292 | break; | |
1293 | default: | |
1294 | break; | |
1295 | } | |
1296 | attr->reserved1 = 0; | |
c87163b9 EP |
1297 | out_filter->num_attrs++; |
1298 | } | |
1299 | } | |
1300 | ||
1301 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1302 | struct ieee80211_vif *vif) | |
1303 | { | |
1304 | struct iwl_bcast_iter_data *data = _data; | |
1305 | struct iwl_mvm *mvm = data->mvm; | |
1306 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1307 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1308 | struct iwl_fw_bcast_mac *bcast_mac; | |
1309 | int i; | |
1310 | ||
1311 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1312 | return; | |
1313 | ||
1314 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1315 | ||
e48393e8 IP |
1316 | /* |
1317 | * enable filtering only for associated stations, but not for P2P | |
1318 | * Clients | |
1319 | */ | |
1320 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1321 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1322 | return; |
1323 | ||
1324 | bcast_mac->default_discard = 1; | |
1325 | ||
1326 | /* copy all configured filters */ | |
1327 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1328 | /* | |
1329 | * Make sure we don't exceed our filters limit. | |
1330 | * if there is still a valid filter to be configured, | |
1331 | * be on the safe side and just allow bcast for this mac. | |
1332 | */ | |
1333 | if (WARN_ON_ONCE(data->current_filter >= | |
1334 | ARRAY_SIZE(cmd->filters))) { | |
1335 | bcast_mac->default_discard = 0; | |
1336 | bcast_mac->attached_filters = 0; | |
1337 | break; | |
1338 | } | |
1339 | ||
1340 | iwl_mvm_set_bcast_filter(vif, | |
1341 | &mvm->bcast_filters[i], | |
1342 | &cmd->filters[data->current_filter]); | |
1343 | ||
1344 | /* skip current filter if it contains no attributes */ | |
1345 | if (!cmd->filters[data->current_filter].num_attrs) | |
1346 | continue; | |
1347 | ||
1348 | /* attach the filter to current mac */ | |
1349 | bcast_mac->attached_filters |= | |
1350 | cpu_to_le16(BIT(data->current_filter)); | |
1351 | ||
1352 | data->current_filter++; | |
1353 | } | |
1354 | } | |
1355 | ||
de06a59e EP |
1356 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1357 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1358 | { |
c87163b9 EP |
1359 | struct iwl_bcast_iter_data iter_data = { |
1360 | .mvm = mvm, | |
de06a59e | 1361 | .cmd = cmd, |
c87163b9 EP |
1362 | }; |
1363 | ||
de06a59e EP |
1364 | memset(cmd, 0, sizeof(*cmd)); |
1365 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1366 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1367 | ||
1368 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1369 | /* use debugfs filters/macs if override is configured */ | |
1370 | if (mvm->dbgfs_bcast_filtering.override) { | |
1371 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1372 | sizeof(cmd->filters)); | |
1373 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1374 | sizeof(cmd->macs)); | |
1375 | return true; | |
1376 | } | |
1377 | #endif | |
c87163b9 EP |
1378 | |
1379 | /* if no filters are configured, do nothing */ | |
1380 | if (!mvm->bcast_filters) | |
de06a59e | 1381 | return false; |
c87163b9 EP |
1382 | |
1383 | /* configure and attach these filters for each associated sta vif */ | |
1384 | ieee80211_iterate_active_interfaces( | |
1385 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1386 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1387 | ||
de06a59e EP |
1388 | return true; |
1389 | } | |
1390 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1391 | struct ieee80211_vif *vif) | |
1392 | { | |
1393 | struct iwl_bcast_filter_cmd cmd; | |
1394 | ||
1395 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1396 | return 0; | |
1397 | ||
1398 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1399 | return 0; | |
1400 | ||
a1022927 | 1401 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1402 | sizeof(cmd), &cmd); |
1403 | } | |
1404 | #else | |
1405 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1406 | struct ieee80211_vif *vif) | |
1407 | { | |
1408 | return 0; | |
1409 | } | |
1410 | #endif | |
1411 | ||
f697267f AN |
1412 | static void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm) |
1413 | { | |
1414 | struct ieee80211_sta *sta; | |
1415 | struct iwl_mvm_sta *mvmsta; | |
1416 | int i; | |
1417 | ||
1418 | lockdep_assert_held(&mvm->mutex); | |
1419 | ||
1420 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
1421 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
1422 | lockdep_is_held(&mvm->mutex)); | |
1423 | if (!sta || IS_ERR(sta) || !sta->tdls) | |
1424 | continue; | |
1425 | ||
1426 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
1427 | ieee80211_tdls_oper_request(mvmsta->vif, sta->addr, | |
1428 | NL80211_TDLS_TEARDOWN, | |
1429 | WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED, | |
1430 | GFP_KERNEL); | |
1431 | } | |
1432 | } | |
1433 | ||
8ca151b5 JB |
1434 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1435 | struct ieee80211_vif *vif, | |
1436 | struct ieee80211_bss_conf *bss_conf, | |
1437 | u32 changes) | |
1438 | { | |
1439 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1440 | int ret; | |
1441 | ||
6e97b0d2 IP |
1442 | /* |
1443 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1444 | * beacon interval, which was not known when the station interface was | |
1445 | * added. | |
1446 | */ | |
1447 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1448 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1449 | ||
bca49d9a | 1450 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
1451 | if (ret) |
1452 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1453 | ||
1454 | if (changes & BSS_CHANGED_ASSOC) { | |
1455 | if (bss_conf->assoc) { | |
1456 | /* add quota for this interface */ | |
0166230c | 1457 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
1458 | if (ret) { |
1459 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1460 | return; | |
1461 | } | |
016d27e1 JB |
1462 | |
1463 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1464 | &mvm->status)) { | |
1465 | /* | |
1466 | * If we're restarting then the firmware will | |
1467 | * obviously have lost synchronisation with | |
1468 | * the AP. It will attempt to synchronise by | |
1469 | * itself, but we can make it more reliable by | |
1470 | * scheduling a session protection time event. | |
1471 | * | |
1472 | * The firmware needs to receive a beacon to | |
1473 | * catch up with synchronisation, use 110% of | |
1474 | * the beacon interval. | |
1475 | * | |
1476 | * Set a large maximum delay to allow for more | |
1477 | * than a single interface. | |
1478 | */ | |
1479 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1480 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
1481 | 5 * dur); | |
1482 | } | |
1f3b0ff8 LE |
1483 | |
1484 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1485 | iwl_mvm_power_vif_assoc(mvm, vif); |
29a90a49 EP |
1486 | if (vif->p2p) |
1487 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1488 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1489 | /* |
1490 | * If update fails - SF might be running in associated | |
1491 | * mode while disassociated - which is forbidden. | |
1492 | */ | |
1493 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1494 | "Failed to update SF upon disassociation\n"); | |
1495 | ||
8ca151b5 JB |
1496 | /* remove AP station now that the MAC is unassoc */ |
1497 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1498 | if (ret) | |
1499 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
1500 | |
1501 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1502 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
1503 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
1504 | /* remove quota for this interface */ | |
0166230c | 1505 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
1506 | if (ret) |
1507 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1508 | |
1509 | if (vif->p2p) | |
1510 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1511 | } |
a20fd398 | 1512 | |
e59647ea | 1513 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 1514 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 1515 | |
a20fd398 AO |
1516 | /* reset rssi values */ |
1517 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1518 | ||
8e484f0b | 1519 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1520 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
1521 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 1522 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
1523 | /* |
1524 | * We received a beacon _after_ association so | |
1525 | * remove the session protection. | |
1526 | */ | |
1527 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1528 | &mvmvif->time_event_data); | |
51498cf6 AB |
1529 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | |
1530 | BSS_CHANGED_QOS)) { | |
999609f1 | 1531 | ret = iwl_mvm_power_update_mac(mvm); |
4bf881f5 AB |
1532 | if (ret) |
1533 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 1534 | } |
cc87d322 EH |
1535 | |
1536 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
1537 | iwl_mvm_sf_update(mvm, vif, false); | |
1538 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
1539 | } | |
1540 | ||
88f2fd73 MG |
1541 | if (changes & BSS_CHANGED_TXPOWER) { |
1542 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
1543 | bss_conf->txpower); | |
1544 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
1545 | } | |
a20fd398 AO |
1546 | |
1547 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 1548 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
1549 | /* reset cqm events tracking */ |
1550 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
1551 | if (mvmvif->bf_data.bf_enabled) { |
1552 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
1553 | if (ret) | |
1554 | IWL_ERR(mvm, | |
1555 | "failed to update CQM thresholds\n"); | |
1556 | } | |
a20fd398 | 1557 | } |
2ee8f021 EP |
1558 | |
1559 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 1560 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
1561 | iwl_mvm_configure_bcast_filter(mvm, vif); |
1562 | } | |
8ca151b5 JB |
1563 | } |
1564 | ||
5023d966 JB |
1565 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
1566 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1567 | { |
1568 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1569 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1570 | int ret; | |
1571 | ||
576eeee9 EP |
1572 | /* |
1573 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
1574 | * (the system time), so make sure it is available. | |
1575 | */ | |
1576 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
1577 | if (ret) | |
1578 | return ret; | |
1579 | ||
8ca151b5 JB |
1580 | mutex_lock(&mvm->mutex); |
1581 | ||
1582 | /* Send the beacon template */ | |
1583 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
1584 | if (ret) | |
1585 | goto out_unlock; | |
1586 | ||
6e97b0d2 IP |
1587 | /* |
1588 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1589 | * beacon interval, which was not known when the AP interface was added. | |
1590 | */ | |
1591 | if (vif->type == NL80211_IFTYPE_AP) | |
1592 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1593 | ||
8ca151b5 JB |
1594 | /* Add the mac context */ |
1595 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
1596 | if (ret) | |
1597 | goto out_unlock; | |
1598 | ||
1599 | /* Perform the binding */ | |
1600 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1601 | if (ret) | |
1602 | goto out_remove; | |
1603 | ||
8ca151b5 JB |
1604 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
1605 | * are added and applied to the scheduler */ | |
1606 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
1607 | if (ret) | |
1608 | goto out_unbind; | |
1609 | ||
5691e218 IP |
1610 | /* must be set before quota calculations */ |
1611 | mvmvif->ap_ibss_active = true; | |
1612 | ||
a11e144e | 1613 | /* power updated needs to be done before quotas */ |
999609f1 | 1614 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1615 | |
0166230c | 1616 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 | 1617 | if (ret) |
a11e144e | 1618 | goto out_quota_failed; |
8ca151b5 | 1619 | |
5023d966 | 1620 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1621 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1622 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 | 1623 | |
29a90a49 EP |
1624 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
1625 | ||
8e484f0b | 1626 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1627 | |
f697267f AN |
1628 | /* we don't support TDLS during DCM */ |
1629 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
1630 | iwl_mvm_teardown_tdls_peers(mvm); | |
1631 | ||
8ca151b5 JB |
1632 | mutex_unlock(&mvm->mutex); |
1633 | return 0; | |
1634 | ||
a11e144e | 1635 | out_quota_failed: |
999609f1 | 1636 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 1637 | mvmvif->ap_ibss_active = false; |
8ca151b5 JB |
1638 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); |
1639 | out_unbind: | |
1640 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1641 | out_remove: | |
1642 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1643 | out_unlock: | |
1644 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 1645 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
1646 | return ret; |
1647 | } | |
1648 | ||
5023d966 JB |
1649 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
1650 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1651 | { |
1652 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1653 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1654 | ||
38a12b5b JB |
1655 | iwl_mvm_prepare_mac_removal(mvm, vif); |
1656 | ||
8ca151b5 JB |
1657 | mutex_lock(&mvm->mutex); |
1658 | ||
664322fa | 1659 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
1660 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
1661 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1662 | &mvmvif->time_event_data); | |
664322fa | 1663 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
7f0a7c67 | 1664 | } |
664322fa | 1665 | |
003e5236 AO |
1666 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
1667 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
1668 | mvm->csa_tx_block_bcn_timeout = 0; | |
1669 | } | |
1670 | ||
5023d966 | 1671 | mvmvif->ap_ibss_active = false; |
1c87bbad | 1672 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 1673 | |
8e484f0b | 1674 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1675 | |
29a90a49 EP |
1676 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
1677 | ||
5023d966 | 1678 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1679 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1680 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 | 1681 | |
0166230c | 1682 | iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
1683 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); |
1684 | iwl_mvm_binding_remove_vif(mvm, vif); | |
a11e144e | 1685 | |
999609f1 | 1686 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1687 | |
8ca151b5 JB |
1688 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1689 | ||
1690 | mutex_unlock(&mvm->mutex); | |
1691 | } | |
1692 | ||
5023d966 JB |
1693 | static void |
1694 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
1695 | struct ieee80211_vif *vif, | |
1696 | struct ieee80211_bss_conf *bss_conf, | |
1697 | u32 changes) | |
8ca151b5 | 1698 | { |
be2056fc | 1699 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 1700 | |
be2056fc IP |
1701 | /* Changes will be applied when the AP/IBSS is started */ |
1702 | if (!mvmvif->ap_ibss_active) | |
1703 | return; | |
1704 | ||
863230da JB |
1705 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
1706 | BSS_CHANGED_BANDWIDTH) && | |
bca49d9a | 1707 | iwl_mvm_mac_ctxt_changed(mvm, vif, false)) |
863230da | 1708 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 1709 | |
8ca151b5 | 1710 | /* Need to send a new beacon template to the FW */ |
863230da JB |
1711 | if (changes & BSS_CHANGED_BEACON && |
1712 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
1713 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
8ca151b5 JB |
1714 | } |
1715 | ||
1716 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
1717 | struct ieee80211_vif *vif, | |
1718 | struct ieee80211_bss_conf *bss_conf, | |
1719 | u32 changes) | |
1720 | { | |
1721 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1722 | ||
576eeee9 EP |
1723 | /* |
1724 | * iwl_mvm_bss_info_changed_station() might call | |
1725 | * iwl_mvm_protect_session(), which reads directly from | |
1726 | * the device (the system time), so make sure it is available. | |
1727 | */ | |
1728 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
1729 | return; | |
1730 | ||
8ca151b5 JB |
1731 | mutex_lock(&mvm->mutex); |
1732 | ||
723f02ed | 1733 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
fb98be5e | 1734 | iwl_mvm_scan_offload_stop(mvm, true); |
723f02ed | 1735 | |
8ca151b5 JB |
1736 | switch (vif->type) { |
1737 | case NL80211_IFTYPE_STATION: | |
1738 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
1739 | break; | |
1740 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
1741 | case NL80211_IFTYPE_ADHOC: |
1742 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
1743 | break; |
1744 | default: | |
1745 | /* shouldn't happen */ | |
1746 | WARN_ON_ONCE(1); | |
1747 | } | |
1748 | ||
1749 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 1750 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
1751 | } |
1752 | ||
4660dfbb EP |
1753 | static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm, |
1754 | enum iwl_scan_status scan_type) | |
1755 | { | |
1756 | int ret; | |
1757 | bool wait_for_handlers = false; | |
1758 | ||
1759 | mutex_lock(&mvm->mutex); | |
1760 | ||
1761 | if (mvm->scan_status != scan_type) { | |
1762 | ret = 0; | |
1763 | /* make sure there are no pending notifications */ | |
1764 | wait_for_handlers = true; | |
1765 | goto out; | |
1766 | } | |
1767 | ||
1768 | switch (scan_type) { | |
1769 | case IWL_MVM_SCAN_SCHED: | |
1770 | ret = iwl_mvm_scan_offload_stop(mvm, true); | |
1771 | break; | |
1772 | case IWL_MVM_SCAN_OS: | |
1773 | ret = iwl_mvm_cancel_scan(mvm); | |
1774 | break; | |
1775 | case IWL_MVM_SCAN_NONE: | |
1776 | default: | |
1777 | WARN_ON_ONCE(1); | |
1778 | ret = -EINVAL; | |
1779 | break; | |
1780 | } | |
1781 | if (ret) | |
1782 | goto out; | |
1783 | ||
1784 | wait_for_handlers = true; | |
1785 | out: | |
1786 | mutex_unlock(&mvm->mutex); | |
1787 | ||
1788 | /* make sure we consume the completion notification */ | |
1789 | if (wait_for_handlers) | |
1790 | iwl_mvm_wait_for_async_handlers(mvm); | |
1791 | ||
1792 | return ret; | |
1793 | } | |
8ca151b5 JB |
1794 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, |
1795 | struct ieee80211_vif *vif, | |
c56ef672 | 1796 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
1797 | { |
1798 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
c56ef672 | 1799 | struct cfg80211_scan_request *req = &hw_req->req; |
8ca151b5 JB |
1800 | int ret; |
1801 | ||
762533ba DS |
1802 | if (req->n_channels == 0 || |
1803 | req->n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
1804 | return -EINVAL; |
1805 | ||
4660dfbb EP |
1806 | ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED); |
1807 | if (ret) | |
1808 | return ret; | |
1809 | ||
8ca151b5 JB |
1810 | mutex_lock(&mvm->mutex); |
1811 | ||
4660dfbb | 1812 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { |
8ca151b5 | 1813 | ret = -EBUSY; |
519e2026 AN |
1814 | goto out; |
1815 | } | |
8ca151b5 | 1816 | |
519e2026 AN |
1817 | iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); |
1818 | ||
fb98be5e DS |
1819 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) |
1820 | ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req); | |
1821 | else | |
1822 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
1823 | ||
519e2026 AN |
1824 | if (ret) |
1825 | iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); | |
1826 | out: | |
8ca151b5 | 1827 | mutex_unlock(&mvm->mutex); |
8ca151b5 JB |
1828 | return ret; |
1829 | } | |
1830 | ||
1831 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
1832 | struct ieee80211_vif *vif) | |
1833 | { | |
1834 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1835 | ||
1836 | mutex_lock(&mvm->mutex); | |
1837 | ||
1838 | iwl_mvm_cancel_scan(mvm); | |
1839 | ||
1840 | mutex_unlock(&mvm->mutex); | |
1841 | } | |
1842 | ||
1843 | static void | |
1844 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 1845 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
1846 | int num_frames, |
1847 | enum ieee80211_frame_release_type reason, | |
1848 | bool more_data) | |
1849 | { | |
1850 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 1851 | |
3e56eadf | 1852 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 1853 | |
3e56eadf JB |
1854 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
1855 | tids, more_data, false); | |
1856 | } | |
1857 | ||
1858 | static void | |
1859 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
1860 | struct ieee80211_sta *sta, u16 tids, | |
1861 | int num_frames, | |
1862 | enum ieee80211_frame_release_type reason, | |
1863 | bool more_data) | |
1864 | { | |
1865 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1866 | ||
1867 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
1868 | ||
1869 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
1870 | tids, more_data, true); | |
8ca151b5 JB |
1871 | } |
1872 | ||
1873 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1874 | struct ieee80211_vif *vif, | |
1875 | enum sta_notify_cmd cmd, | |
1876 | struct ieee80211_sta *sta) | |
1877 | { | |
1878 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 1879 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3e56eadf | 1880 | int tid; |
8ca151b5 JB |
1881 | |
1882 | switch (cmd) { | |
1883 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1884 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 1885 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf JB |
1886 | spin_lock_bh(&mvmsta->lock); |
1887 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1888 | struct iwl_mvm_tid_data *tid_data; | |
1889 | ||
1890 | tid_data = &mvmsta->tid_data[tid]; | |
1891 | if (tid_data->state != IWL_AGG_ON && | |
1892 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
1893 | continue; | |
1894 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
1895 | continue; | |
1896 | ieee80211_sta_set_buffered(sta, tid, true); | |
1897 | } | |
1898 | spin_unlock_bh(&mvmsta->lock); | |
8ca151b5 JB |
1899 | /* |
1900 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1901 | * queues to this station will not be transmitted. The fw will | |
1902 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1903 | */ | |
1904 | break; | |
1905 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1906 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1907 | break; |
9cc40712 | 1908 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1909 | break; |
1910 | default: | |
1911 | break; | |
1912 | } | |
1913 | } | |
1914 | ||
1ddbbb0c JB |
1915 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
1916 | struct ieee80211_vif *vif, | |
1917 | struct ieee80211_sta *sta) | |
1918 | { | |
1919 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1920 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1921 | ||
1922 | /* | |
1923 | * This is called before mac80211 does RCU synchronisation, | |
1924 | * so here we already invalidate our internal RCU-protected | |
1925 | * station pointer. The rest of the code will thus no longer | |
1926 | * be able to find the station this way, and we don't rely | |
1927 | * on further RCU synchronisation after the sta_state() | |
1928 | * callback deleted the station. | |
1929 | */ | |
1930 | mutex_lock(&mvm->mutex); | |
1931 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
1932 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
1933 | ERR_PTR(-ENOENT)); | |
1934 | mutex_unlock(&mvm->mutex); | |
1935 | } | |
1936 | ||
fa3d07e4 | 1937 | int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
cf7b491d AN |
1938 | { |
1939 | struct ieee80211_sta *sta; | |
fa3d07e4 | 1940 | struct iwl_mvm_sta *mvmsta; |
cf7b491d AN |
1941 | int count = 0; |
1942 | int i; | |
1943 | ||
1944 | lockdep_assert_held(&mvm->mutex); | |
1945 | ||
1946 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
1947 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
1948 | lockdep_is_held(&mvm->mutex)); | |
1949 | if (!sta || IS_ERR(sta) || !sta->tdls) | |
1950 | continue; | |
1951 | ||
fa3d07e4 AN |
1952 | if (vif) { |
1953 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
1954 | if (mvmsta->vif != vif) | |
1955 | continue; | |
1956 | } | |
1957 | ||
cf7b491d AN |
1958 | count++; |
1959 | } | |
1960 | ||
1961 | return count; | |
1962 | } | |
1963 | ||
fa3d07e4 AN |
1964 | static void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, |
1965 | struct ieee80211_vif *vif, | |
1966 | bool sta_added) | |
1967 | { | |
1968 | int tdls_sta_cnt = iwl_mvm_tdls_sta_count(mvm, vif); | |
1969 | ||
1970 | /* | |
1971 | * Disable ps when the first TDLS sta is added and re-enable it | |
1972 | * when the last TDLS sta is removed | |
1973 | */ | |
1974 | if ((tdls_sta_cnt == 1 && sta_added) || | |
1975 | (tdls_sta_cnt == 0 && !sta_added)) | |
1976 | iwl_mvm_power_update_mac(mvm); | |
1977 | } | |
1978 | ||
8ca151b5 JB |
1979 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
1980 | struct ieee80211_vif *vif, | |
1981 | struct ieee80211_sta *sta, | |
1982 | enum ieee80211_sta_state old_state, | |
1983 | enum ieee80211_sta_state new_state) | |
1984 | { | |
1985 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1986 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1987 | int ret; | |
1988 | ||
1989 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1990 | sta->addr, old_state, new_state); | |
1991 | ||
1992 | /* this would be a mac80211 bug ... but don't crash */ | |
1993 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1994 | return -EINVAL; | |
1995 | ||
1996 | /* if a STA is being removed, reuse its ID */ | |
1997 | flush_work(&mvm->sta_drained_wk); | |
1998 | ||
1999 | mutex_lock(&mvm->mutex); | |
2000 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2001 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2002 | /* |
2003 | * Firmware bug - it'll crash if the beacon interval is less | |
2004 | * than 16. We can't avoid connecting at all, so refuse the | |
2005 | * station state change, this will cause mac80211 to abandon | |
2006 | * attempts to connect to this AP, and eventually wpa_s will | |
2007 | * blacklist the AP... | |
2008 | */ | |
2009 | if (vif->type == NL80211_IFTYPE_STATION && | |
2010 | vif->bss_conf.beacon_int < 16) { | |
2011 | IWL_ERR(mvm, | |
2012 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2013 | sta->addr, vif->bss_conf.beacon_int); | |
2014 | ret = -EINVAL; | |
2015 | goto out_unlock; | |
2016 | } | |
cf7b491d AN |
2017 | |
2018 | if (sta->tdls && | |
2019 | (vif->p2p || | |
fa3d07e4 AN |
2020 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2021 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2022 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2023 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2024 | ret = -EBUSY; | |
2025 | goto out_unlock; | |
2026 | } | |
2027 | ||
8ca151b5 | 2028 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
fa3d07e4 AN |
2029 | if (sta->tdls && ret == 0) |
2030 | iwl_mvm_recalc_tdls_state(mvm, vif, true); | |
8ca151b5 JB |
2031 | } else if (old_state == IEEE80211_STA_NONE && |
2032 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2033 | /* |
2034 | * EBS may be disabled due to previous failures reported by FW. | |
2035 | * Reset EBS status here assuming environment has been changed. | |
2036 | */ | |
2037 | mvm->last_ebs_successful = true; | |
8ca151b5 JB |
2038 | ret = 0; |
2039 | } else if (old_state == IEEE80211_STA_AUTH && | |
2040 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
2041 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2042 | if (ret == 0) | |
2043 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2044 | mvmvif->phy_ctxt->channel->band, |
2045 | true); | |
8ca151b5 JB |
2046 | } else if (old_state == IEEE80211_STA_ASSOC && |
2047 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2048 | |
2049 | /* we don't support TDLS during DCM */ | |
2050 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2051 | iwl_mvm_teardown_tdls_peers(mvm); | |
2052 | ||
7df15b1e | 2053 | /* enable beacon filtering */ |
fa7b2e7f | 2054 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2055 | ret = 0; |
2056 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2057 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2058 | /* disable beacon filtering */ |
a1022927 | 2059 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2060 | ret = 0; |
2061 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2062 | new_state == IEEE80211_STA_AUTH) { | |
2063 | ret = 0; | |
2064 | } else if (old_state == IEEE80211_STA_AUTH && | |
2065 | new_state == IEEE80211_STA_NONE) { | |
2066 | ret = 0; | |
2067 | } else if (old_state == IEEE80211_STA_NONE && | |
2068 | new_state == IEEE80211_STA_NOTEXIST) { | |
2069 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
fa3d07e4 AN |
2070 | if (sta->tdls) |
2071 | iwl_mvm_recalc_tdls_state(mvm, vif, false); | |
8ca151b5 JB |
2072 | } else { |
2073 | ret = -EIO; | |
2074 | } | |
48bc1307 | 2075 | out_unlock: |
8ca151b5 JB |
2076 | mutex_unlock(&mvm->mutex); |
2077 | ||
2078 | return ret; | |
2079 | } | |
2080 | ||
2081 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2082 | { | |
2083 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2084 | ||
2085 | mvm->rts_threshold = value; | |
2086 | ||
2087 | return 0; | |
2088 | } | |
2089 | ||
1f3b0ff8 LE |
2090 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2091 | struct ieee80211_vif *vif, | |
2092 | struct ieee80211_sta *sta, u32 changed) | |
2093 | { | |
2094 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2095 | ||
2096 | if (vif->type == NL80211_IFTYPE_STATION && | |
2097 | changed & IEEE80211_RC_NSS_CHANGED) | |
2098 | iwl_mvm_sf_update(mvm, vif, false); | |
2099 | } | |
2100 | ||
8ca151b5 JB |
2101 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2102 | struct ieee80211_vif *vif, u16 ac, | |
2103 | const struct ieee80211_tx_queue_params *params) | |
2104 | { | |
2105 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2106 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2107 | ||
2108 | mvmvif->queue_params[ac] = *params; | |
2109 | ||
2110 | /* | |
2111 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2112 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2113 | */ | |
2114 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2115 | int ret; | |
2116 | ||
2117 | mutex_lock(&mvm->mutex); | |
bca49d9a | 2118 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
2119 | mutex_unlock(&mvm->mutex); |
2120 | return ret; | |
2121 | } | |
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2126 | struct ieee80211_vif *vif) | |
2127 | { | |
2128 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2129 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
2130 | 200 + vif->bss_conf.beacon_int); | |
2131 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
2132 | 100 + vif->bss_conf.beacon_int); | |
2133 | ||
2134 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2135 | return; | |
2136 | ||
576eeee9 EP |
2137 | /* |
2138 | * iwl_mvm_protect_session() reads directly from the device | |
2139 | * (the system time), so make sure it is available. | |
2140 | */ | |
2141 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2142 | return; | |
2143 | ||
8ca151b5 JB |
2144 | mutex_lock(&mvm->mutex); |
2145 | /* Try really hard to protect the session and hear a beacon */ | |
016d27e1 | 2146 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); |
8ca151b5 | 2147 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2148 | |
2149 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2150 | } |
2151 | ||
07ecd897 AN |
2152 | static void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw, |
2153 | struct ieee80211_vif *vif) | |
2154 | { | |
2155 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2156 | u32 duration = 2 * vif->bss_conf.dtim_period * vif->bss_conf.beacon_int; | |
2157 | ||
576eeee9 EP |
2158 | /* |
2159 | * iwl_mvm_protect_session() reads directly from the device | |
2160 | * (the system time), so make sure it is available. | |
2161 | */ | |
2162 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_TDLS)) | |
2163 | return; | |
2164 | ||
07ecd897 AN |
2165 | mutex_lock(&mvm->mutex); |
2166 | /* Protect the session to hear the TDLS setup response on the channel */ | |
2167 | iwl_mvm_protect_session(mvm, vif, duration, duration, 100); | |
2168 | mutex_unlock(&mvm->mutex); | |
576eeee9 EP |
2169 | |
2170 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_TDLS); | |
07ecd897 AN |
2171 | } |
2172 | ||
35a000b7 DS |
2173 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2174 | struct ieee80211_vif *vif, | |
2175 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2176 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2177 | { |
2178 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2179 | int ret; | |
2180 | ||
4660dfbb EP |
2181 | ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS); |
2182 | if (ret) | |
2183 | return ret; | |
2184 | ||
35a000b7 DS |
2185 | mutex_lock(&mvm->mutex); |
2186 | ||
b538b8ce | 2187 | if (!iwl_mvm_is_idle(mvm)) { |
bd5e4744 DS |
2188 | ret = -EBUSY; |
2189 | goto out; | |
2190 | } | |
2191 | ||
4660dfbb | 2192 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { |
35a000b7 DS |
2193 | ret = -EBUSY; |
2194 | goto out; | |
2195 | } | |
2196 | ||
2197 | mvm->scan_status = IWL_MVM_SCAN_SCHED; | |
2198 | ||
fb98be5e DS |
2199 | if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) { |
2200 | ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); | |
2201 | if (ret) | |
2202 | goto err; | |
2203 | } | |
35a000b7 DS |
2204 | |
2205 | ret = iwl_mvm_config_sched_scan_profiles(mvm, req); | |
2206 | if (ret) | |
2207 | goto err; | |
2208 | ||
fb98be5e DS |
2209 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) |
2210 | ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies); | |
2211 | else | |
2212 | ret = iwl_mvm_sched_scan_start(mvm, req); | |
2213 | ||
35a000b7 DS |
2214 | if (!ret) |
2215 | goto out; | |
2216 | err: | |
2217 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
2218 | out: | |
2219 | mutex_unlock(&mvm->mutex); | |
2220 | return ret; | |
2221 | } | |
2222 | ||
37e3308c JB |
2223 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2224 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2225 | { |
2226 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2227 | int ret; |
35a000b7 DS |
2228 | |
2229 | mutex_lock(&mvm->mutex); | |
fb98be5e | 2230 | ret = iwl_mvm_scan_offload_stop(mvm, false); |
35a000b7 | 2231 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2232 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2233 | |
33ea27f6 | 2234 | return ret; |
35a000b7 DS |
2235 | } |
2236 | ||
8ca151b5 JB |
2237 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2238 | enum set_key_cmd cmd, | |
2239 | struct ieee80211_vif *vif, | |
2240 | struct ieee80211_sta *sta, | |
2241 | struct ieee80211_key_conf *key) | |
2242 | { | |
2243 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2244 | int ret; | |
2245 | ||
2246 | if (iwlwifi_mod_params.sw_crypto) { | |
2247 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2248 | return -EOPNOTSUPP; | |
2249 | } | |
2250 | ||
2251 | switch (key->cipher) { | |
2252 | case WLAN_CIPHER_SUITE_TKIP: | |
2253 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
2254 | /* fall-through */ | |
2255 | case WLAN_CIPHER_SUITE_CCMP: | |
2256 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2257 | break; | |
2258 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
2259 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
2260 | break; | |
2261 | case WLAN_CIPHER_SUITE_WEP40: | |
2262 | case WLAN_CIPHER_SUITE_WEP104: | |
2263 | /* | |
2264 | * Support for TX only, at least for now, so accept | |
2265 | * the key and do nothing else. Then mac80211 will | |
2266 | * pass it for TX but we don't have to use it for RX. | |
2267 | */ | |
2268 | return 0; | |
2269 | default: | |
e36e5433 MS |
2270 | /* currently FW supports only one optional cipher scheme */ |
2271 | if (hw->n_cipher_schemes && | |
2272 | hw->cipher_schemes->cipher == key->cipher) | |
2273 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2274 | else | |
2275 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2276 | } |
2277 | ||
2278 | mutex_lock(&mvm->mutex); | |
2279 | ||
2280 | switch (cmd) { | |
2281 | case SET_KEY: | |
5023d966 JB |
2282 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2283 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2284 | /* | |
2285 | * GTK on AP interface is a TX-only key, return 0; | |
2286 | * on IBSS they're per-station and because we're lazy | |
2287 | * we don't support them for RX, so do the same. | |
2288 | */ | |
6caffd4f JB |
2289 | ret = 0; |
2290 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2291 | break; | |
2292 | } | |
2293 | ||
8ca151b5 JB |
2294 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
2295 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
2296 | if (ret) { | |
2297 | IWL_WARN(mvm, "set key failed\n"); | |
2298 | /* | |
2299 | * can't add key for RX, but we don't need it | |
2300 | * in the device for TX so still return 0 | |
2301 | */ | |
6caffd4f | 2302 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2303 | ret = 0; |
2304 | } | |
2305 | ||
2306 | break; | |
2307 | case DISABLE_KEY: | |
6caffd4f JB |
2308 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2309 | ret = 0; | |
2310 | break; | |
2311 | } | |
2312 | ||
8ca151b5 JB |
2313 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2314 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2315 | break; | |
2316 | default: | |
2317 | ret = -EINVAL; | |
2318 | } | |
2319 | ||
2320 | mutex_unlock(&mvm->mutex); | |
2321 | return ret; | |
2322 | } | |
2323 | ||
2324 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2325 | struct ieee80211_vif *vif, | |
2326 | struct ieee80211_key_conf *keyconf, | |
2327 | struct ieee80211_sta *sta, | |
2328 | u32 iv32, u16 *phase1key) | |
2329 | { | |
2330 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2331 | ||
5023d966 JB |
2332 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2333 | return; | |
2334 | ||
8ca151b5 JB |
2335 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2336 | } | |
2337 | ||
2338 | ||
b112889c AM |
2339 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2340 | struct iwl_rx_packet *pkt, void *data) | |
2341 | { | |
2342 | struct iwl_mvm *mvm = | |
2343 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2344 | struct iwl_hs20_roc_res *resp; | |
2345 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2346 | struct iwl_mvm_time_event_data *te_data = data; | |
2347 | ||
2348 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2349 | return true; | |
2350 | ||
2351 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2352 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2353 | return true; | |
2354 | } | |
2355 | ||
2356 | resp = (void *)pkt->data; | |
2357 | ||
2358 | IWL_DEBUG_TE(mvm, | |
2359 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2360 | resp->status, resp->event_unique_id); | |
2361 | ||
2362 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2363 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2364 | te_data->uid); | |
2365 | ||
2366 | spin_lock_bh(&mvm->time_event_lock); | |
2367 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2368 | spin_unlock_bh(&mvm->time_event_lock); | |
2369 | ||
2370 | return true; | |
2371 | } | |
2372 | ||
2373 | #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000 | |
2374 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, | |
2375 | struct ieee80211_channel *channel, | |
2376 | struct ieee80211_vif *vif, | |
2377 | int duration) | |
2378 | { | |
2379 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
2380 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2381 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
2382 | static const u8 time_event_response[] = { HOT_SPOT_CMD }; | |
2383 | struct iwl_notification_wait wait_time_event; | |
2384 | struct iwl_hs20_roc_req aux_roc_req = { | |
2385 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
2386 | .id_and_color = | |
2387 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
2388 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
2389 | /* Set the channel info data */ | |
2390 | .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? | |
2391 | PHY_BAND_24 : PHY_BAND_5, | |
2392 | .channel_info.channel = channel->hw_value, | |
2393 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
2394 | /* Set the time and duration */ | |
2395 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
2396 | .apply_time_max_delay = | |
2397 | cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)), | |
2398 | .duration = cpu_to_le32(MSEC_TO_TU(duration)), | |
2399 | }; | |
2400 | ||
2401 | /* Set the node address */ | |
2402 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
2403 | ||
2404 | te_data->vif = vif; | |
2405 | te_data->duration = duration; | |
2406 | te_data->id = HOT_SPOT_CMD; | |
2407 | ||
2408 | lockdep_assert_held(&mvm->mutex); | |
2409 | ||
2410 | spin_lock_bh(&mvm->time_event_lock); | |
2411 | list_add_tail(&te_data->list, &mvm->time_event_list); | |
2412 | spin_unlock_bh(&mvm->time_event_lock); | |
2413 | ||
2414 | /* | |
2415 | * Use a notification wait, which really just processes the | |
2416 | * command response and doesn't wait for anything, in order | |
2417 | * to be able to process the response and get the UID inside | |
2418 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
2419 | * stores the buffer and then wakes up this thread, by which | |
2420 | * time another notification (that the time event started) | |
2421 | * might already be processed unsuccessfully. | |
2422 | */ | |
2423 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
2424 | time_event_response, | |
2425 | ARRAY_SIZE(time_event_response), | |
2426 | iwl_mvm_rx_aux_roc, te_data); | |
2427 | ||
2428 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
2429 | &aux_roc_req); | |
2430 | ||
2431 | if (res) { | |
2432 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
2433 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
2434 | goto out_clear_te; | |
2435 | } | |
2436 | ||
2437 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
2438 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
2439 | /* should never fail */ | |
2440 | WARN_ON_ONCE(res); | |
2441 | ||
2442 | if (res) { | |
2443 | out_clear_te: | |
2444 | spin_lock_bh(&mvm->time_event_lock); | |
2445 | iwl_mvm_te_clear_data(mvm, te_data); | |
2446 | spin_unlock_bh(&mvm->time_event_lock); | |
2447 | } | |
2448 | ||
2449 | return res; | |
2450 | } | |
2451 | ||
8ca151b5 JB |
2452 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
2453 | struct ieee80211_vif *vif, | |
2454 | struct ieee80211_channel *channel, | |
d339d5ca IP |
2455 | int duration, |
2456 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
2457 | { |
2458 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 2459 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 2460 | struct cfg80211_chan_def chandef; |
31d385ae IP |
2461 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
2462 | int ret, i; | |
2463 | ||
2464 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
2465 | duration, type); | |
8ca151b5 | 2466 | |
b112889c AM |
2467 | switch (vif->type) { |
2468 | case NL80211_IFTYPE_STATION: | |
2469 | /* Use aux roc framework (HS20) */ | |
2470 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
2471 | vif, duration); | |
2472 | return ret; | |
2473 | case NL80211_IFTYPE_P2P_DEVICE: | |
2474 | /* handle below */ | |
2475 | break; | |
2476 | default: | |
2477 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
8ca151b5 JB |
2478 | return -EINVAL; |
2479 | } | |
2480 | ||
8ca151b5 JB |
2481 | mutex_lock(&mvm->mutex); |
2482 | ||
31d385ae IP |
2483 | for (i = 0; i < NUM_PHY_CTX; i++) { |
2484 | phy_ctxt = &mvm->phy_ctxts[i]; | |
2485 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
2486 | continue; | |
2487 | ||
2488 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
2489 | /* | |
2490 | * Unbind the P2P_DEVICE from the current PHY context, | |
2491 | * and if the PHY context is not used remove it. | |
2492 | */ | |
2493 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2494 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2495 | goto out_unlock; | |
2496 | ||
2497 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2498 | ||
2499 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
2500 | mvmvif->phy_ctxt = phy_ctxt; | |
2501 | ||
2502 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2503 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2504 | goto out_unlock; | |
2505 | ||
2506 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2507 | goto schedule_time_event; | |
2508 | } | |
2509 | } | |
2510 | ||
2511 | /* Need to update the PHY context only if the ROC channel changed */ | |
2512 | if (channel == mvmvif->phy_ctxt->channel) | |
2513 | goto schedule_time_event; | |
2514 | ||
8ca151b5 | 2515 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 2516 | |
31d385ae IP |
2517 | /* |
2518 | * Change the PHY context configuration as it is currently referenced | |
2519 | * only by the P2P Device MAC | |
2520 | */ | |
2521 | if (mvmvif->phy_ctxt->ref == 1) { | |
2522 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
2523 | &chandef, 1, 1); | |
2524 | if (ret) | |
2525 | goto out_unlock; | |
2526 | } else { | |
2527 | /* | |
2528 | * The PHY context is shared with other MACs. Need to remove the | |
2529 | * P2P Device from the binding, allocate an new PHY context and | |
2530 | * create a new binding | |
2531 | */ | |
2532 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
2533 | if (!phy_ctxt) { | |
2534 | ret = -ENOSPC; | |
2535 | goto out_unlock; | |
2536 | } | |
2537 | ||
2538 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
2539 | 1, 1); | |
2540 | if (ret) { | |
2541 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
2542 | goto out_unlock; | |
2543 | } | |
2544 | ||
2545 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
2546 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2547 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2548 | goto out_unlock; | |
2549 | ||
2550 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2551 | ||
2552 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
2553 | mvmvif->phy_ctxt = phy_ctxt; | |
2554 | ||
2555 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2556 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2557 | goto out_unlock; | |
2558 | ||
2559 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2560 | } | |
2561 | ||
2562 | schedule_time_event: | |
8ca151b5 | 2563 | /* Schedule the time events */ |
e635c797 | 2564 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 2565 | |
31d385ae | 2566 | out_unlock: |
8ca151b5 JB |
2567 | mutex_unlock(&mvm->mutex); |
2568 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
2569 | return ret; |
2570 | } | |
2571 | ||
2572 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
2573 | { | |
2574 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2575 | ||
2576 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
2577 | ||
2578 | mutex_lock(&mvm->mutex); | |
2579 | iwl_mvm_stop_p2p_roc(mvm); | |
2580 | mutex_unlock(&mvm->mutex); | |
2581 | ||
2582 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
2583 | return 0; | |
2584 | } | |
2585 | ||
b08c1d97 LC |
2586 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
2587 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 2588 | { |
fe0f2de3 IP |
2589 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2590 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
2591 | int ret; |
2592 | ||
b08c1d97 LC |
2593 | lockdep_assert_held(&mvm->mutex); |
2594 | ||
53a9d61e | 2595 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 2596 | |
fe0f2de3 IP |
2597 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
2598 | if (!phy_ctxt) { | |
2599 | ret = -ENOSPC; | |
2600 | goto out; | |
2601 | } | |
8ca151b5 | 2602 | |
dcbc3e1a | 2603 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
2604 | ctx->rx_chains_static, |
2605 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
2606 | if (ret) { |
2607 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
2608 | goto out; | |
2609 | } | |
2610 | ||
53a9d61e | 2611 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
2612 | *phy_ctxt_id = phy_ctxt->id; |
2613 | out: | |
b08c1d97 LC |
2614 | return ret; |
2615 | } | |
2616 | ||
2617 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
2618 | struct ieee80211_chanctx_conf *ctx) | |
2619 | { | |
2620 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2621 | int ret; | |
2622 | ||
2623 | mutex_lock(&mvm->mutex); | |
2624 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 2625 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 2626 | |
8ca151b5 JB |
2627 | return ret; |
2628 | } | |
2629 | ||
b08c1d97 LC |
2630 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
2631 | struct ieee80211_chanctx_conf *ctx) | |
2632 | { | |
2633 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
2634 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
2635 | ||
2636 | lockdep_assert_held(&mvm->mutex); | |
2637 | ||
2638 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
2639 | } | |
2640 | ||
8ca151b5 JB |
2641 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
2642 | struct ieee80211_chanctx_conf *ctx) | |
2643 | { | |
2644 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
2645 | |
2646 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 2647 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
2648 | mutex_unlock(&mvm->mutex); |
2649 | } | |
2650 | ||
2651 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
2652 | struct ieee80211_chanctx_conf *ctx, | |
2653 | u32 changed) | |
2654 | { | |
2655 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2656 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2657 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 2658 | |
31d385ae IP |
2659 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
2660 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
2661 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
2662 | IEEE80211_CHANCTX_CHANGE_RADAR | |
2663 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
2664 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
2665 | phy_ctxt->ref, changed)) | |
2666 | return; | |
2667 | ||
8ca151b5 | 2668 | mutex_lock(&mvm->mutex); |
4d66449a | 2669 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 2670 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
2671 | ctx->rx_chains_static, |
2672 | ctx->rx_chains_dynamic); | |
2673 | mutex_unlock(&mvm->mutex); | |
2674 | } | |
2675 | ||
b08c1d97 LC |
2676 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
2677 | struct ieee80211_vif *vif, | |
f0c97783 LC |
2678 | struct ieee80211_chanctx_conf *ctx, |
2679 | bool switching_chanctx) | |
8ca151b5 | 2680 | { |
fe0f2de3 IP |
2681 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2682 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2683 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
2684 | int ret; | |
2685 | ||
b08c1d97 | 2686 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 2687 | |
fe0f2de3 | 2688 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
2689 | |
2690 | switch (vif->type) { | |
2691 | case NL80211_IFTYPE_AP: | |
bd3398e2 AO |
2692 | /* Unless it's a CSA flow we have nothing to do here */ |
2693 | if (vif->csa_active) { | |
2694 | mvmvif->ap_ibss_active = true; | |
2695 | break; | |
2696 | } | |
5023d966 | 2697 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
2698 | /* |
2699 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 2700 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
2701 | */ |
2702 | ret = 0; | |
b08c1d97 | 2703 | goto out; |
8ca151b5 | 2704 | case NL80211_IFTYPE_STATION: |
8ca151b5 JB |
2705 | case NL80211_IFTYPE_MONITOR: |
2706 | break; | |
2707 | default: | |
2708 | ret = -EINVAL; | |
b08c1d97 | 2709 | goto out; |
8ca151b5 JB |
2710 | } |
2711 | ||
2712 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2713 | if (ret) | |
b08c1d97 | 2714 | goto out; |
8ca151b5 JB |
2715 | |
2716 | /* | |
92d85562 AB |
2717 | * Power state must be updated before quotas, |
2718 | * otherwise fw will complain. | |
2719 | */ | |
999609f1 | 2720 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
2721 | |
2722 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
2723 | * interfaces. For the other types, the bss_info changed flow |
2724 | * will handle quota settings. | |
2725 | */ | |
2726 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 2727 | mvmvif->monitor_active = true; |
0166230c | 2728 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
2729 | if (ret) |
2730 | goto out_remove_binding; | |
2731 | } | |
2732 | ||
bd3398e2 | 2733 | /* Handle binding during CSA */ |
f0c97783 LC |
2734 | if ((vif->type == NL80211_IFTYPE_AP) || |
2735 | (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) { | |
0166230c | 2736 | iwl_mvm_update_quotas(mvm, NULL); |
bca49d9a | 2737 | iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
bd3398e2 AO |
2738 | } |
2739 | ||
b08c1d97 | 2740 | goto out; |
8ca151b5 | 2741 | |
b08c1d97 | 2742 | out_remove_binding: |
8ca151b5 | 2743 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 2744 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 2745 | out: |
8ca151b5 JB |
2746 | if (ret) |
2747 | mvmvif->phy_ctxt = NULL; | |
2748 | return ret; | |
2749 | } | |
b08c1d97 LC |
2750 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
2751 | struct ieee80211_vif *vif, | |
2752 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
2753 | { |
2754 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 2755 | int ret; |
8ca151b5 JB |
2756 | |
2757 | mutex_lock(&mvm->mutex); | |
f0c97783 | 2758 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
2759 | mutex_unlock(&mvm->mutex); |
2760 | ||
2761 | return ret; | |
2762 | } | |
2763 | ||
2764 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
2765 | struct ieee80211_vif *vif, | |
f0c97783 LC |
2766 | struct ieee80211_chanctx_conf *ctx, |
2767 | bool switching_chanctx) | |
b08c1d97 LC |
2768 | { |
2769 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 2770 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
2771 | |
2772 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
2773 | |
2774 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
2775 | ||
8ca151b5 | 2776 | switch (vif->type) { |
5023d966 | 2777 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 2778 | goto out; |
8ca151b5 | 2779 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 2780 | mvmvif->monitor_active = false; |
8ca151b5 | 2781 | break; |
bd3398e2 AO |
2782 | case NL80211_IFTYPE_AP: |
2783 | /* This part is triggered only during CSA */ | |
2784 | if (!vif->csa_active || !mvmvif->ap_ibss_active) | |
b08c1d97 | 2785 | goto out; |
bd3398e2 | 2786 | |
003e5236 AO |
2787 | /* Set CS bit on all the stations */ |
2788 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
2789 | ||
2790 | /* Save blocked iface, the timeout is set on the next beacon */ | |
2791 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
2792 | ||
bd3398e2 | 2793 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
2794 | break; |
2795 | case NL80211_IFTYPE_STATION: | |
2796 | if (!switching_chanctx) | |
2797 | break; | |
2798 | ||
2799 | disabled_vif = vif; | |
2800 | ||
2801 | iwl_mvm_mac_ctxt_changed(mvm, vif, true); | |
2802 | break; | |
8ca151b5 JB |
2803 | default: |
2804 | break; | |
2805 | } | |
2806 | ||
f0c97783 | 2807 | iwl_mvm_update_quotas(mvm, disabled_vif); |
1e1391ca | 2808 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 2809 | |
b08c1d97 | 2810 | out: |
a11e144e | 2811 | mvmvif->phy_ctxt = NULL; |
999609f1 | 2812 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
2813 | } |
2814 | ||
2815 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
2816 | struct ieee80211_vif *vif, | |
2817 | struct ieee80211_chanctx_conf *ctx) | |
2818 | { | |
2819 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2820 | ||
2821 | mutex_lock(&mvm->mutex); | |
f0c97783 | 2822 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
2823 | mutex_unlock(&mvm->mutex); |
2824 | } | |
2825 | ||
b08c1d97 LC |
2826 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
2827 | struct ieee80211_vif_chanctx_switch *vifs, | |
2828 | int n_vifs, | |
2829 | enum ieee80211_chanctx_switch_mode mode) | |
2830 | { | |
2831 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2832 | int ret; | |
2833 | ||
2834 | /* we only support SWAP_CONTEXTS and with a single-vif right now */ | |
2835 | if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1) | |
2836 | return -EOPNOTSUPP; | |
2837 | ||
2838 | mutex_lock(&mvm->mutex); | |
f0c97783 | 2839 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
2840 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
2841 | ||
2842 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
2843 | if (ret) { | |
2844 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
2845 | goto out_reassign; | |
2846 | } | |
2847 | ||
f0c97783 LC |
2848 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
2849 | true); | |
b08c1d97 LC |
2850 | if (ret) { |
2851 | IWL_ERR(mvm, | |
2852 | "failed to assign new_ctx during channel switch\n"); | |
2853 | goto out_remove; | |
2854 | } | |
2855 | ||
f697267f AN |
2856 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
2857 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2858 | iwl_mvm_teardown_tdls_peers(mvm); | |
2859 | ||
b08c1d97 LC |
2860 | goto out; |
2861 | ||
2862 | out_remove: | |
2863 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
2864 | ||
2865 | out_reassign: | |
2866 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx); | |
2867 | if (ret) { | |
2868 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); | |
2869 | goto out_restart; | |
2870 | } | |
2871 | ||
f0c97783 LC |
2872 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
2873 | true); | |
b08c1d97 LC |
2874 | if (ret) { |
2875 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
2876 | goto out_restart; | |
2877 | } | |
2878 | ||
2879 | goto out; | |
2880 | ||
2881 | out_restart: | |
2882 | /* things keep failing, better restart the hw */ | |
2883 | iwl_mvm_nic_restart(mvm, false); | |
2884 | ||
2885 | out: | |
2886 | mutex_unlock(&mvm->mutex); | |
2887 | return ret; | |
2888 | } | |
2889 | ||
8ca151b5 JB |
2890 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
2891 | struct ieee80211_sta *sta, | |
2892 | bool set) | |
2893 | { | |
2894 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2895 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
2896 | ||
2897 | if (!mvm_sta || !mvm_sta->vif) { | |
2898 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
2899 | return -EINVAL; | |
2900 | } | |
2901 | ||
2902 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
2903 | } | |
2904 | ||
507cadf2 DS |
2905 | #ifdef CONFIG_NL80211_TESTMODE |
2906 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
2907 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
2908 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 2909 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
2910 | }; |
2911 | ||
2912 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
2913 | struct ieee80211_vif *vif, | |
2914 | void *data, int len) | |
2915 | { | |
2916 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
2917 | int err; | |
2918 | u32 noa_duration; | |
2919 | ||
2920 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
2921 | if (err) | |
2922 | return err; | |
2923 | ||
2924 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
2925 | return -EINVAL; | |
2926 | ||
2927 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
2928 | case IWL_MVM_TM_CMD_SET_NOA: | |
2929 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
2930 | !vif->bss_conf.enable_beacon || | |
2931 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
2932 | return -EINVAL; | |
2933 | ||
2934 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
2935 | if (noa_duration >= vif->bss_conf.beacon_int) | |
2936 | return -EINVAL; | |
2937 | ||
2938 | mvm->noa_duration = noa_duration; | |
2939 | mvm->noa_vif = vif; | |
2940 | ||
0166230c | 2941 | return iwl_mvm_update_quotas(mvm, NULL); |
f6c6ad42 JB |
2942 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
2943 | /* must be associated client vif - ignore authorized */ | |
2944 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
2945 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
2946 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
2947 | return -EINVAL; | |
2948 | ||
2949 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
2950 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
2951 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
2952 | } |
2953 | ||
2954 | return -EOPNOTSUPP; | |
2955 | } | |
2956 | ||
2957 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
2958 | struct ieee80211_vif *vif, | |
2959 | void *data, int len) | |
2960 | { | |
2961 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2962 | int err; | |
2963 | ||
2964 | mutex_lock(&mvm->mutex); | |
2965 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
2966 | mutex_unlock(&mvm->mutex); | |
2967 | ||
2968 | return err; | |
2969 | } | |
2970 | #endif | |
2971 | ||
bd3398e2 AO |
2972 | static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw, |
2973 | struct ieee80211_vif *vif, | |
2974 | struct cfg80211_chan_def *chandef) | |
2975 | { | |
2976 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 2977 | struct ieee80211_vif *csa_vif; |
bd3398e2 AO |
2978 | |
2979 | mutex_lock(&mvm->mutex); | |
664322fa AO |
2980 | |
2981 | csa_vif = rcu_dereference_protected(mvm->csa_vif, | |
2982 | lockdep_is_held(&mvm->mutex)); | |
2983 | if (WARN(csa_vif && csa_vif->csa_active, | |
bd3398e2 AO |
2984 | "Another CSA is already in progress")) |
2985 | goto out_unlock; | |
2986 | ||
2987 | IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n", | |
2988 | chandef->center_freq1); | |
664322fa | 2989 | rcu_assign_pointer(mvm->csa_vif, vif); |
bd3398e2 AO |
2990 | |
2991 | out_unlock: | |
2992 | mutex_unlock(&mvm->mutex); | |
2993 | } | |
2994 | ||
c5b0e7c0 EG |
2995 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
2996 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
2997 | { | |
2998 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2999 | struct iwl_mvm_vif *mvmvif; | |
3000 | struct iwl_mvm_sta *mvmsta; | |
3001 | ||
3002 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3003 | return; | |
3004 | ||
3005 | mutex_lock(&mvm->mutex); | |
3006 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3007 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id); | |
3008 | ||
3009 | if (WARN_ON_ONCE(!mvmsta)) | |
3010 | goto done; | |
3011 | ||
3012 | if (drop) { | |
3013 | if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true)) | |
3014 | IWL_ERR(mvm, "flush request fail\n"); | |
3015 | } else { | |
3016 | iwl_trans_wait_tx_queue_empty(mvm->trans, | |
3017 | mvmsta->tfd_queue_msk); | |
3018 | } | |
3019 | done: | |
3020 | mutex_unlock(&mvm->mutex); | |
3021 | } | |
3022 | ||
e5209263 | 3023 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
3024 | .tx = iwl_mvm_mac_tx, |
3025 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
3026 | .start = iwl_mvm_mac_start, | |
3027 | .restart_complete = iwl_mvm_mac_restart_complete, | |
3028 | .stop = iwl_mvm_mac_stop, | |
3029 | .add_interface = iwl_mvm_mac_add_interface, | |
3030 | .remove_interface = iwl_mvm_mac_remove_interface, | |
3031 | .config = iwl_mvm_mac_config, | |
e59647ea | 3032 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
3033 | .configure_filter = iwl_mvm_configure_filter, |
3034 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
3035 | .hw_scan = iwl_mvm_mac_hw_scan, | |
3036 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 3037 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
3038 | .sta_state = iwl_mvm_mac_sta_state, |
3039 | .sta_notify = iwl_mvm_mac_sta_notify, | |
3040 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 3041 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 3042 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 3043 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
3044 | .conf_tx = iwl_mvm_mac_conf_tx, |
3045 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 3046 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 3047 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
3048 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
3049 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
3050 | .set_key = iwl_mvm_mac_set_key, |
3051 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
3052 | .remain_on_channel = iwl_mvm_roc, | |
3053 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
3054 | .add_chanctx = iwl_mvm_add_chanctx, |
3055 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
3056 | .change_chanctx = iwl_mvm_change_chanctx, | |
3057 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
3058 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 3059 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 3060 | |
5023d966 JB |
3061 | .start_ap = iwl_mvm_start_ap_ibss, |
3062 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
3063 | .join_ibss = iwl_mvm_start_ap_ibss, | |
3064 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
3065 | |
3066 | .set_tim = iwl_mvm_set_tim, | |
3067 | ||
bd3398e2 AO |
3068 | .channel_switch_beacon = iwl_mvm_channel_switch_beacon, |
3069 | ||
507cadf2 DS |
3070 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
3071 | ||
8ca151b5 JB |
3072 | #ifdef CONFIG_PM_SLEEP |
3073 | /* look at d3.c */ | |
3074 | .suspend = iwl_mvm_suspend, | |
3075 | .resume = iwl_mvm_resume, | |
3076 | .set_wakeup = iwl_mvm_set_wakeup, | |
3077 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
3078 | #if IS_ENABLED(CONFIG_IPV6) | |
3079 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
3080 | #endif | |
3081 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
3082 | #endif | |
3083 | }; |